diff --git a/third_party/qcms/BUILD.gn b/third_party/qcms/BUILD.gn
new file mode 100644
index 0000000..b059319
--- /dev/null
+++ b/third_party/qcms/BUILD.gn
@@ -0,0 +1,44 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+config("qcms_config") {
+  include_dirs = [ "src" ]
+}
+
+source_set("qcms") {
+  sources = [
+    "src/chain.c",
+    "src/chain.h",
+    "src/iccread.c",
+    "src/matrix.c",
+    "src/matrix.h",
+    "src/qcms.h",
+    "src/qcmsint.h",
+    "src/qcmstypes.h",
+    "src/transform.c",
+    "src/transform_util.c",
+    "src/transform_util.h",
+  ]
+
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [ "//build/config/compiler:no_chromium_code" ]
+  public_configs = [ ":qcms_config" ]
+
+  if (cpu_arch == "x86" || cpu_arch == "x64") {
+    defines = [ "SSE2_ENABLE" ]
+    sources += [ "src/transform-sse2.c" ]
+    if (!(is_win && cpu_arch == "x64")) {
+      # QCMS assumes this target isn't compiled since MSVC x64 doesn't support
+      # the MMX intrinsics present in the SSE1 code.
+      sources += [ "src/transform-sse1.c" ]
+    }
+  }
+
+  if (is_win) {
+    cflags = [
+      "/wd4056",  # Overflow in floating-point constant arithmetic (INFINITY).
+      "/wd4756",  # Overflow in constant arithmetic (INFINITY).
+    ]
+  }
+}
diff --git a/third_party/qcms/README.chromium b/third_party/qcms/README.chromium
new file mode 100644
index 0000000..4c5b3fc
--- /dev/null
+++ b/third_party/qcms/README.chromium
@@ -0,0 +1,45 @@
+Name: Quick Color Management System
+Short Name: qcms
+URL: https://github.com/jrmuizel/qcms/tree/v4
+Version: v4
+Date: 2012-03-13
+License: MIT
+License File: src/COPYING
+Security Critical: yes
+
+Description:
+Contains support for applying an ICC color profile to an image.  The code is
+originally based on tinycms, re-written by Mozilla for better security and
+performance.  This copy is a source-drop from Mozilla on March 13, 2012.
+
+Local Modifications:
+Some files only have license headers in the master branch.
+ - Added the same license headers to the versions brought down from the 'v4'
+   branch src URL qcms/tree/v4
+google.patch contains the following modifications. Apply with
+   patch -p1 < google.patch.
+ - Add bgra output support.
+ - Use HAVE_POSIX_MEMALIGN instead of HAS_POSIX_MEMALIG
+   (https://bugzilla.mozilla.org/show_bug.cgi?id=692922)
+ - Applied upstream patch:
+   - https://bug752254.bugzilla.mozilla.org/attachment.cgi?id=626102
+ - Applied upstream patch for sanitizing gamma table:
+   - Expanded gamma clamp range to allow 1.0.
+ - Do not short-circuit bogus profile check for A2B0 or B2A0 unless v4 enabled.
+ - Only reference code from transform-sse1.c and transform-sse2.c when SSE is
+   enabled.
+ - Do not use an x86-only attribute on ARM or MIPS.
+ - Fix integer truncation warning/errors on Win64 build.
+ - Apply upstream thread safety (fix) patch from
+   - https://bugzilla.mozilla.org/show_bug.cgi?id=853169
+ - Apply upstream fix for qcms_profile_from_memory from
+   - https://bugzilla.mozilla.org/show_bug.cgi?id=969226
+ - Apply upstream simplification of qcmstypes.h
+   - https://hg.mozilla.org/mozilla-central/rev/b5be94737a83
+ - Check for unused tag_len in read_nested_curveType()
+ - Apply qcms_transform_precacheLUT_float does not properly free dest buffer
+   - https://bugzilla.mozilla.org/show_bug.cgi?id=701348
+ - Add qcms_profile_match api
+   - https://code.google.com/p/chromium/issues/detail?id=401971
+To regenerate google.patch:
+  git diff b8456f38 src > google.patch
diff --git a/third_party/qcms/google.patch b/third_party/qcms/google.patch
new file mode 100644
index 0000000..78dc928
--- /dev/null
+++ b/third_party/qcms/google.patch
@@ -0,0 +1,1151 @@
+diff --git a/third_party/qcms/src/iccread.c b/third_party/qcms/src/iccread.c
+index 36b7011..69b7141 100644
+--- a/third_party/qcms/src/iccread.c
++++ b/third_party/qcms/src/iccread.c
+@@ -266,7 +266,7 @@ qcms_bool qcms_profile_is_bogus(qcms_profile *profile)
+        if (profile->color_space != RGB_SIGNATURE)
+ 	       return false;
+ 
+-       if (profile->A2B0 || profile->B2A0)
++       if (qcms_supports_iccv4 && (profile->A2B0 || profile->B2A0))
+                return false;
+ 
+        rX = s15Fixed16Number_to_float(profile->redColorant.X);
+@@ -297,6 +297,11 @@ qcms_bool qcms_profile_is_bogus(qcms_profile *profile)
+        sum[1] = rY + gY + bY;
+        sum[2] = rZ + gZ + bZ;
+ 
++#if defined (_MSC_VER)
++#pragma warning(push)
++/* Disable double to float truncation warning 4305 */
++#pragma warning(disable:4305)
++#endif
+        // Build our target vector (see mozilla bug 460629)
+        target[0] = 0.96420;
+        target[1] = 1.00000;
+@@ -310,6 +315,10 @@ qcms_bool qcms_profile_is_bogus(qcms_profile *profile)
+        tolerance[1] = 0.02;
+        tolerance[2] = 0.04;
+ 
++#if defined (_MSC_VER)
++/* Restore warnings */
++#pragma warning(pop)
++#endif
+        // Compare with our tolerance
+        for (i = 0; i < 3; ++i) {
+            if (!(((sum[i] - tolerance[i]) <= target[i]) &&
+@@ -331,6 +340,7 @@ qcms_bool qcms_profile_is_bogus(qcms_profile *profile)
+ #define TAG_A2B0 0x41324230
+ #define TAG_B2A0 0x42324130
+ #define TAG_CHAD 0x63686164
++#define TAG_desc 0x64657363
+ 
+ static struct tag *find_tag(struct tag_index index, uint32_t tag_id)
+ {
+@@ -344,6 +354,47 @@ static struct tag *find_tag(struct tag_index index, uint32_t tag_id)
+ 	return tag;
+ }
+ 
++#define DESC_TYPE 0x64657363 // 'desc'
++#define MLUC_TYPE 0x6d6c7563 // 'mluc'
++
++static bool read_tag_descType(qcms_profile *profile, struct mem_source *src, struct tag_index index, uint32_t tag_id)
++{
++	struct tag *tag = find_tag(index, tag_id);
++	if (tag) {
++		const uint32_t limit = sizeof profile->description;
++		uint32_t offset = tag->offset;
++		uint32_t type = read_u32(src, offset);
++		uint32_t length = read_u32(src, offset+8);
++		uint32_t i, description;
++		if (length && type == MLUC_TYPE) {
++			length = read_u32(src, offset+20);
++			if (!length || (length & 1) || (read_u32(src, offset+12) != 12))
++				goto invalid_desc_tag;
++			description = offset + read_u32(src, offset+24);
++			if (!src->valid)
++				goto invalid_desc_tag;
++		} else if (length && type == DESC_TYPE) {
++			description = offset + 12;
++		} else {
++			goto invalid_desc_tag;
++		}
++		if (length >= limit)
++			length = limit - 1;
++		for (i = 0; i < length; ++i)
++			profile->description[i] = read_u8(src, description+i);
++		profile->description[length] = 0;
++	} else {
++		goto invalid_desc_tag;
++	}
++
++	if (src->valid)
++		return true;
++
++invalid_desc_tag:
++	invalid_source(src, "invalid description");
++	return false;
++}
++
+ #define XYZ_TYPE		0x58595a20 // 'XYZ '
+ #define CURVE_TYPE		0x63757276 // 'curv'
+ #define PARAMETRIC_CURVE_TYPE	0x70617261 // 'para'
+@@ -402,7 +453,7 @@ static struct XYZNumber read_tag_XYZType(struct mem_source *src, struct tag_inde
+ // present that are not part of the tag_index.
+ static struct curveType *read_curveType(struct mem_source *src, uint32_t offset, uint32_t *len)
+ {
+-	static const size_t COUNT_TO_LENGTH[5] = {1, 3, 4, 5, 7};
++	static const uint32_t COUNT_TO_LENGTH[5] = {1, 3, 4, 5, 7};
+ 	struct curveType *curve = NULL;
+ 	uint32_t type = read_u32(src, offset);
+ 	uint32_t count;
+@@ -484,19 +535,23 @@ static void read_nested_curveType(struct mem_source *src, struct curveType *(*cu
+ 	uint32_t channel_offset = 0;
+ 	int i;
+ 	for (i = 0; i < num_channels; i++) {
+-		uint32_t tag_len;
++		uint32_t tag_len = ~0;
+ 
+ 		(*curveArray)[i] = read_curveType(src, curve_offset + channel_offset, &tag_len);
+ 		if (!(*curveArray)[i]) {
+ 			invalid_source(src, "invalid nested curveType curve");
+ 		}
+ 
++		if (tag_len == ~0) {
++			invalid_source(src, "invalid nested curveType tag length");
++			return;
++		}
++
+ 		channel_offset += tag_len;
+ 		// 4 byte aligned
+ 		if ((tag_len % 4) != 0)
+ 			channel_offset += 4 - (tag_len % 4);
+ 	}
+-
+ }
+ 
+ static void mAB_release(struct lutmABType *lut)
+@@ -657,7 +712,7 @@ static struct lutType *read_tag_lutType(struct mem_source *src, struct tag_index
+ 	uint16_t num_input_table_entries;
+ 	uint16_t num_output_table_entries;
+ 	uint8_t in_chan, grid_points, out_chan;
+-	uint32_t clut_offset, output_offset;
++	size_t clut_offset, output_offset;
+ 	uint32_t clut_size;
+ 	size_t entry_size;
+ 	struct lutType *lut;
+@@ -979,6 +1034,9 @@ qcms_profile* qcms_profile_sRGB(void)
+ 		return NO_MEM_PROFILE;
+ 
+ 	profile = qcms_profile_create_rgb_with_table(D65, Rec709Primaries, table, 1024);
++	if (profile)
++		strcpy(profile->description, "sRGB IEC61966-2.1");
++
+ 	free(table);
+ 	return profile;
+ }
+@@ -997,6 +1055,9 @@ qcms_profile* qcms_profile_from_memory(const void *mem, size_t size)
+ 	source.size = size;
+ 	source.valid = true;
+ 
++	if (size < 4)
++		return INVALID_PROFILE;
++
+ 	length = read_u32(src, 0);
+ 	if (length <= size) {
+ 		// shrink the area that we can read if appropriate
+@@ -1028,6 +1089,9 @@ qcms_profile* qcms_profile_from_memory(const void *mem, size_t size)
+ 	if (!src->valid || !index.tags)
+ 		goto invalid_tag_table;
+ 
++	if (!read_tag_descType(profile, src, index, TAG_desc))
++		goto invalid_tag_table;
++
+ 	if (find_tag(index, TAG_CHAD)) {
+ 		profile->chromaticAdaption = read_tag_s15Fixed16ArrayType(src, index, TAG_CHAD);
+ 	} else {
+@@ -1098,6 +1162,11 @@ invalid_profile:
+ 	return INVALID_PROFILE;
+ }
+ 
++qcms_bool qcms_profile_match(qcms_profile *p1, qcms_profile *p2)
++{
++    return memcmp(p1->description, p2->description, sizeof p1->description) == 0;
++}
++
+ qcms_intent qcms_profile_get_rendering_intent(qcms_profile *profile)
+ {
+ 	return profile->rendering_intent;
+diff --git a/third_party/qcms/src/qcms.h b/third_party/qcms/src/qcms.h
+index 7d83623..e59528a 100644
+--- a/third_party/qcms/src/qcms.h
++++ b/third_party/qcms/src/qcms.h
+@@ -40,6 +40,12 @@ sale, use or other dealings in this Software without written
+ authorization from SunSoft Inc. 
+ ******************************************************************/
+ 
++/*
++ * QCMS, in general, is not threadsafe. However, it should be safe to create
++ * profile and transformation objects on different threads, so long as you
++ * don't use the same objects on different threads at the same time.
++ */
++
+ /* 
+  * Color Space Signatures
+  * Note that only icSigXYZData and icSigLabData are valid
+@@ -102,6 +108,12 @@ typedef enum {
+ 	QCMS_DATA_GRAYA_8
+ } qcms_data_type;
+ 
++/* Format of the output data for qcms_transform_data_type() */
++typedef enum {
++	QCMS_OUTPUT_RGBX,
++	QCMS_OUTPUT_BGRX
++} qcms_output_type;
++
+ /* the names for the following two types are sort of ugly */
+ typedef struct
+ {
+@@ -136,6 +148,8 @@ qcms_bool qcms_profile_is_bogus(qcms_profile *profile);
+ qcms_intent qcms_profile_get_rendering_intent(qcms_profile *profile);
+ icColorSpaceSignature qcms_profile_get_color_space(qcms_profile *profile);
+ 
++qcms_bool qcms_profile_match(qcms_profile *p1, qcms_profile *p2);
++
+ void qcms_profile_precache_output_transform(qcms_profile *profile);
+ 
+ qcms_transform* qcms_transform_create(
+@@ -146,6 +160,7 @@ qcms_transform* qcms_transform_create(
+ void qcms_transform_release(qcms_transform *);
+ 
+ void qcms_transform_data(qcms_transform *transform, void *src, void *dest, size_t length);
++void qcms_transform_data_type(qcms_transform *transform, void *src, void *dest, size_t length, qcms_output_type type);
+ 
+ void qcms_enable_iccv4();
+ 
+diff --git a/third_party/qcms/src/qcmsint.h b/third_party/qcms/src/qcmsint.h
+index 53a3420..4116ed5 100644
+--- a/third_party/qcms/src/qcmsint.h
++++ b/third_party/qcms/src/qcmsint.h
+@@ -45,6 +45,11 @@ struct precache_output
+ #define ALIGN __attribute__(( aligned (16) ))
+ #endif
+ 
++typedef struct _qcms_format_type {
++	int r;
++	int b;
++} qcms_format_type;
++
+ struct _qcms_transform {
+ 	float ALIGN matrix[3][4];
+ 	float *input_gamma_table_r;
+@@ -88,7 +93,7 @@ struct _qcms_transform {
+ 	struct precache_output *output_table_g;
+ 	struct precache_output *output_table_b;
+ 
+-	void (*transform_fn)(struct _qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length);
++	void (*transform_fn)(struct _qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, struct _qcms_format_type output_format);
+ };
+ 
+ struct matrix {
+@@ -225,6 +230,7 @@ struct tag_value {
+ #define LAB_SIGNATURE  0x4C616220
+ 
+ struct _qcms_profile {
++	char description[64];
+ 	uint32_t class;
+ 	uint32_t color_space;
+ 	uint32_t pcs;
+@@ -280,18 +286,40 @@ qcms_bool set_rgb_colorants(qcms_profile *profile, qcms_CIE_xyY white_point, qcm
+ void qcms_transform_data_rgb_out_lut_sse2(qcms_transform *transform,
+                                           unsigned char *src,
+                                           unsigned char *dest,
+-                                          size_t length);
++                                          size_t length,
++                                          qcms_format_type output_format);
+ void qcms_transform_data_rgba_out_lut_sse2(qcms_transform *transform,
+                                           unsigned char *src,
+                                           unsigned char *dest,
+-                                          size_t length);
++                                          size_t length,
++                                          qcms_format_type output_format);
+ void qcms_transform_data_rgb_out_lut_sse1(qcms_transform *transform,
+                                           unsigned char *src,
+                                           unsigned char *dest,
+-                                          size_t length);
++                                          size_t length,
++                                          qcms_format_type output_format);
+ void qcms_transform_data_rgba_out_lut_sse1(qcms_transform *transform,
+                                           unsigned char *src,
+                                           unsigned char *dest,
+-                                          size_t length);
++                                          size_t length,
++                                          qcms_format_type output_format);
+ 
+ extern qcms_bool qcms_supports_iccv4;
++
++
++#ifdef _MSC_VER
++
++long __cdecl _InterlockedIncrement(long volatile *);
++long __cdecl _InterlockedDecrement(long volatile *);
++#pragma intrinsic(_InterlockedIncrement)
++#pragma intrinsic(_InterlockedDecrement)
++
++#define qcms_atomic_increment(x) _InterlockedIncrement((long volatile *)&x)
++#define qcms_atomic_decrement(x) _InterlockedDecrement((long volatile*)&x)
++
++#else
++
++#define qcms_atomic_increment(x) __sync_add_and_fetch(&x, 1)
++#define qcms_atomic_decrement(x) __sync_sub_and_fetch(&x, 1)
++
++#endif
+diff --git a/third_party/qcms/src/qcmstypes.h b/third_party/qcms/src/qcmstypes.h
+index 56d8de3..d58f691 100644
+--- a/third_party/qcms/src/qcmstypes.h
++++ b/third_party/qcms/src/qcmstypes.h
+@@ -22,37 +22,6 @@
+ #ifndef QCMS_TYPES_H
+ #define QCMS_TYPES_H
+ 
+-#ifdef MOZ_QCMS
+-
+-#include "prtypes.h"
+-
+-/* prtypes.h defines IS_LITTLE_ENDIAN and IS_BIG ENDIAN */
+-
+-#if defined (__SVR4) && defined (__sun)
+-/* int_types.h gets included somehow, so avoid redefining the types differently */
+-#include <sys/int_types.h>
+-#elif defined (_AIX)
+-#include <sys/types.h>
+-#elif !defined(ANDROID) && !defined(__OpenBSD__)
+-typedef PRInt8 int8_t;
+-typedef PRUint8 uint8_t;
+-typedef PRInt16 int16_t;
+-typedef PRUint16 uint16_t;
+-typedef PRInt32 int32_t;
+-typedef PRUint32 uint32_t;
+-typedef PRInt64 int64_t;
+-typedef PRUint64 uint64_t;
+-
+-#ifdef __OS2__
+-/* OS/2's stdlib typdefs uintptr_t. So we'll just include that so we don't collide */
+-#include <stdlib.h>
+-#elif !defined(__intptr_t_defined) && !defined(_UINTPTR_T_DEFINED)
+-typedef PRUptrdiff uintptr_t;
+-#endif
+-#endif
+-
+-#else // MOZ_QCMS
+-
+ #if BYTE_ORDER == LITTLE_ENDIAN
+ #define IS_LITTLE_ENDIAN
+ #elif BYTE_ORDER == BIG_ENDIAN
+@@ -75,7 +44,7 @@ typedef PRUptrdiff uintptr_t;
+ 
+ #if defined (_SVR4) || defined (SVR4) || defined (__OpenBSD__) || defined (_sgi) || defined (__sun) || defined (sun) || defined (__digital__)
+ #  include <inttypes.h>
+-#elif defined (_MSC_VER)
++#elif defined (_MSC_VER) && _MSC_VER < 1600
+ typedef __int8 int8_t;
+ typedef unsigned __int8 uint8_t;
+ typedef __int16 int16_t;
+@@ -87,7 +56,12 @@ typedef unsigned __int64 uint64_t;
+ #ifdef _WIN64
+ typedef unsigned __int64 uintptr_t;
+ #else
++#pragma warning(push)
++/* Disable benign redefinition of type warning 4142 */
++#pragma warning(disable:4142)
+ typedef unsigned long uintptr_t;
++/* Restore warnings */
++#pragma warning(pop)
+ #endif
+ 
+ #elif defined (_AIX)
+@@ -96,8 +70,6 @@ typedef unsigned long uintptr_t;
+ #  include <stdint.h>
+ #endif
+ 
+-#endif
+-
+ typedef qcms_bool bool;
+ #define true 1
+ #define false 0
+diff --git a/third_party/qcms/src/transform-sse1.c b/third_party/qcms/src/transform-sse1.c
+index 2f34db5..aaee1bf 100644
+--- a/third_party/qcms/src/transform-sse1.c
++++ b/third_party/qcms/src/transform-sse1.c
+@@ -34,7 +34,8 @@ static const ALIGN float clampMaxValueX4[4] =
+ void qcms_transform_data_rgb_out_lut_sse1(qcms_transform *transform,
+                                           unsigned char *src,
+                                           unsigned char *dest,
+-                                          size_t length)
++                                          size_t length,
++                                          qcms_format_type output_format)
+ {
+     unsigned int i;
+     float (*mat)[4] = transform->matrix;
+@@ -70,6 +71,8 @@ void qcms_transform_data_rgb_out_lut_sse1(qcms_transform *transform,
+ 
+     /* working variables */
+     __m128 vec_r, vec_g, vec_b, result;
++    const int r_out = output_format.r;
++    const int b_out = output_format.b;
+ 
+     /* CYA */
+     if (!length)
+@@ -116,9 +119,9 @@ void qcms_transform_data_rgb_out_lut_sse1(qcms_transform *transform,
+         src += 3;
+ 
+         /* use calc'd indices to output RGB values */
+-        dest[0] = otdata_r[output[0]];
+-        dest[1] = otdata_g[output[1]];
+-        dest[2] = otdata_b[output[2]];
++        dest[r_out] = otdata_r[output[0]];
++        dest[1]     = otdata_g[output[1]];
++        dest[b_out] = otdata_b[output[2]];
+         dest += 3;
+     }
+ 
+@@ -141,9 +144,9 @@ void qcms_transform_data_rgb_out_lut_sse1(qcms_transform *transform,
+     result = _mm_movehl_ps(result, result);
+     *((__m64 *)&output[2]) = _mm_cvtps_pi32(result);
+ 
+-    dest[0] = otdata_r[output[0]];
+-    dest[1] = otdata_g[output[1]];
+-    dest[2] = otdata_b[output[2]];
++    dest[r_out] = otdata_r[output[0]];
++    dest[1]     = otdata_g[output[1]];
++    dest[b_out] = otdata_b[output[2]];
+ 
+     _mm_empty();
+ }
+@@ -151,7 +154,8 @@ void qcms_transform_data_rgb_out_lut_sse1(qcms_transform *transform,
+ void qcms_transform_data_rgba_out_lut_sse1(qcms_transform *transform,
+                                            unsigned char *src,
+                                            unsigned char *dest,
+-                                           size_t length)
++                                           size_t length,
++                                           qcms_format_type output_format)
+ {
+     unsigned int i;
+     float (*mat)[4] = transform->matrix;
+@@ -187,6 +191,8 @@ void qcms_transform_data_rgba_out_lut_sse1(qcms_transform *transform,
+ 
+     /* working variables */
+     __m128 vec_r, vec_g, vec_b, result;
++    const int r_out = output_format.r;
++    const int b_out = output_format.b;
+     unsigned char alpha;
+ 
+     /* CYA */
+@@ -239,9 +245,9 @@ void qcms_transform_data_rgba_out_lut_sse1(qcms_transform *transform,
+         src += 4;
+ 
+         /* use calc'd indices to output RGB values */
+-        dest[0] = otdata_r[output[0]];
+-        dest[1] = otdata_g[output[1]];
+-        dest[2] = otdata_b[output[2]];
++        dest[r_out] = otdata_r[output[0]];
++        dest[1]     = otdata_g[output[1]];
++        dest[b_out] = otdata_b[output[2]];
+         dest += 4;
+     }
+ 
+@@ -266,9 +272,9 @@ void qcms_transform_data_rgba_out_lut_sse1(qcms_transform *transform,
+     result = _mm_movehl_ps(result, result);
+     *((__m64 *)&output[2]) = _mm_cvtps_pi32(result);
+ 
+-    dest[0] = otdata_r[output[0]];
+-    dest[1] = otdata_g[output[1]];
+-    dest[2] = otdata_b[output[2]];
++    dest[r_out] = otdata_r[output[0]];
++    dest[1]     = otdata_g[output[1]];
++    dest[b_out] = otdata_b[output[2]];
+ 
+     _mm_empty();
+ }
+diff --git a/third_party/qcms/src/transform-sse2.c b/third_party/qcms/src/transform-sse2.c
+index 6a5faf9..fa7f2d1 100644
+--- a/third_party/qcms/src/transform-sse2.c
++++ b/third_party/qcms/src/transform-sse2.c
+@@ -34,7 +34,8 @@ static const ALIGN float clampMaxValueX4[4] =
+ void qcms_transform_data_rgb_out_lut_sse2(qcms_transform *transform,
+                                           unsigned char *src,
+                                           unsigned char *dest,
+-                                          size_t length)
++                                          size_t length,
++                                          qcms_format_type output_format)
+ {
+     unsigned int i;
+     float (*mat)[4] = transform->matrix;
+@@ -70,6 +71,8 @@ void qcms_transform_data_rgb_out_lut_sse2(qcms_transform *transform,
+ 
+     /* working variables */
+     __m128 vec_r, vec_g, vec_b, result;
++    const int r_out = output_format.r;
++    const int b_out = output_format.b;
+ 
+     /* CYA */
+     if (!length)
+@@ -114,9 +117,9 @@ void qcms_transform_data_rgb_out_lut_sse2(qcms_transform *transform,
+         src += 3;
+ 
+         /* use calc'd indices to output RGB values */
+-        dest[0] = otdata_r[output[0]];
+-        dest[1] = otdata_g[output[1]];
+-        dest[2] = otdata_b[output[2]];
++        dest[r_out] = otdata_r[output[0]];
++        dest[1]     = otdata_g[output[1]];
++        dest[b_out] = otdata_b[output[2]];
+         dest += 3;
+     }
+ 
+@@ -137,15 +140,16 @@ void qcms_transform_data_rgb_out_lut_sse2(qcms_transform *transform,
+ 
+     _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(result));
+ 
+-    dest[0] = otdata_r[output[0]];
+-    dest[1] = otdata_g[output[1]];
+-    dest[2] = otdata_b[output[2]];
++    dest[r_out] = otdata_r[output[0]];
++    dest[1]     = otdata_g[output[1]];
++    dest[b_out] = otdata_b[output[2]];
+ }
+ 
+ void qcms_transform_data_rgba_out_lut_sse2(qcms_transform *transform,
+                                            unsigned char *src,
+                                            unsigned char *dest,
+-                                           size_t length)
++                                           size_t length,
++                                           qcms_format_type output_format)
+ {
+     unsigned int i;
+     float (*mat)[4] = transform->matrix;
+@@ -181,6 +185,8 @@ void qcms_transform_data_rgba_out_lut_sse2(qcms_transform *transform,
+ 
+     /* working variables */
+     __m128 vec_r, vec_g, vec_b, result;
++    const int r_out = output_format.r;
++    const int b_out = output_format.b;
+     unsigned char alpha;
+ 
+     /* CYA */
+@@ -231,9 +237,9 @@ void qcms_transform_data_rgba_out_lut_sse2(qcms_transform *transform,
+         src += 4;
+ 
+         /* use calc'd indices to output RGB values */
+-        dest[0] = otdata_r[output[0]];
+-        dest[1] = otdata_g[output[1]];
+-        dest[2] = otdata_b[output[2]];
++        dest[r_out] = otdata_r[output[0]];
++        dest[1]     = otdata_g[output[1]];
++        dest[b_out] = otdata_b[output[2]];
+         dest += 4;
+     }
+ 
+@@ -256,7 +262,7 @@ void qcms_transform_data_rgba_out_lut_sse2(qcms_transform *transform,
+ 
+     _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(result));
+ 
+-    dest[0] = otdata_r[output[0]];
+-    dest[1] = otdata_g[output[1]];
+-    dest[2] = otdata_b[output[2]];
++    dest[r_out] = otdata_r[output[0]];
++    dest[1]     = otdata_g[output[1]];
++    dest[b_out] = otdata_b[output[2]];
+ }
+diff --git a/third_party/qcms/src/transform.c b/third_party/qcms/src/transform.c
+index 9a6562b..08db142 100644
+--- a/third_party/qcms/src/transform.c
++++ b/third_party/qcms/src/transform.c
+@@ -181,11 +181,20 @@ compute_chromatic_adaption(struct CIE_XYZ source_white_point,
+ static struct matrix
+ adaption_matrix(struct CIE_XYZ source_illumination, struct CIE_XYZ target_illumination)
+ {
++#if defined (_MSC_VER)
++#pragma warning(push)
++/* Disable double to float truncation warning 4305 */
++#pragma warning(disable:4305)
++#endif
+ 	struct matrix lam_rigg = {{ // Bradford matrix
+ 	                         {  0.8951,  0.2664, -0.1614 },
+ 	                         { -0.7502,  1.7135,  0.0367 },
+ 	                         {  0.0389, -0.0685,  1.0296 }
+ 	                         }};
++#if defined (_MSC_VER)
++/* Restore warnings */
++#pragma warning(pop)
++#endif
+ 	return compute_chromatic_adaption(source_illumination, target_illumination, lam_rigg);
+ }
+ 
+@@ -230,8 +239,11 @@ qcms_bool set_rgb_colorants(qcms_profile *profile, qcms_CIE_xyY white_point, qcm
+ }
+ 
+ #if 0
+-static void qcms_transform_data_rgb_out_pow(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length)
++static void qcms_transform_data_rgb_out_pow(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+ {
++	const int r_out = output_format.r;
++	const int b_out = output_format.b;
++
+ 	int i;
+ 	float (*mat)[4] = transform->matrix;
+ 	for (i=0; i<length; i++) {
+@@ -251,15 +263,19 @@ static void qcms_transform_data_rgb_out_pow(qcms_transform *transform, unsigned
+ 		float out_device_g = pow(out_linear_g, transform->out_gamma_g);
+ 		float out_device_b = pow(out_linear_b, transform->out_gamma_b);
+ 
+-		*dest++ = clamp_u8(255*out_device_r);
+-		*dest++ = clamp_u8(255*out_device_g);
+-		*dest++ = clamp_u8(255*out_device_b);
++		dest[r_out] = clamp_u8(out_device_r*255);
++		dest[1]     = clamp_u8(out_device_g*255);
++		dest[b_out] = clamp_u8(out_device_b*255);
++		dest += 3;
+ 	}
+ }
+ #endif
+ 
+-static void qcms_transform_data_gray_out_lut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length)
++static void qcms_transform_data_gray_out_lut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+ {
++	const int r_out = output_format.r;
++	const int b_out = output_format.b;
++
+ 	unsigned int i;
+ 	for (i = 0; i < length; i++) {
+ 		float out_device_r, out_device_g, out_device_b;
+@@ -267,13 +283,14 @@ static void qcms_transform_data_gray_out_lut(qcms_transform *transform, unsigned
+ 
+ 		float linear = transform->input_gamma_table_gray[device];
+ 
+-                out_device_r = lut_interp_linear(linear, transform->output_gamma_lut_r, transform->output_gamma_lut_r_length);
++		out_device_r = lut_interp_linear(linear, transform->output_gamma_lut_r, transform->output_gamma_lut_r_length);
+ 		out_device_g = lut_interp_linear(linear, transform->output_gamma_lut_g, transform->output_gamma_lut_g_length);
+ 		out_device_b = lut_interp_linear(linear, transform->output_gamma_lut_b, transform->output_gamma_lut_b_length);
+ 
+-		*dest++ = clamp_u8(out_device_r*255);
+-		*dest++ = clamp_u8(out_device_g*255);
+-		*dest++ = clamp_u8(out_device_b*255);
++		dest[r_out] = clamp_u8(out_device_r*255);
++		dest[1]     = clamp_u8(out_device_g*255);
++		dest[b_out] = clamp_u8(out_device_b*255);
++		dest += 3;
+ 	}
+ }
+ 
+@@ -283,8 +300,11 @@ static void qcms_transform_data_gray_out_lut(qcms_transform *transform, unsigned
+ 	See: ftp://ftp.alvyray.com/Acrobat/17_Nonln.pdf
+ */
+ 
+-static void qcms_transform_data_graya_out_lut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length)
++static void qcms_transform_data_graya_out_lut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+ {
++	const int r_out = output_format.r;
++	const int b_out = output_format.b;
++
+ 	unsigned int i;
+ 	for (i = 0; i < length; i++) {
+ 		float out_device_r, out_device_g, out_device_b;
+@@ -293,20 +313,24 @@ static void qcms_transform_data_graya_out_lut(qcms_transform *transform, unsigne
+ 
+ 		float linear = transform->input_gamma_table_gray[device];
+ 
+-                out_device_r = lut_interp_linear(linear, transform->output_gamma_lut_r, transform->output_gamma_lut_r_length);
++		out_device_r = lut_interp_linear(linear, transform->output_gamma_lut_r, transform->output_gamma_lut_r_length);
+ 		out_device_g = lut_interp_linear(linear, transform->output_gamma_lut_g, transform->output_gamma_lut_g_length);
+ 		out_device_b = lut_interp_linear(linear, transform->output_gamma_lut_b, transform->output_gamma_lut_b_length);
+ 
+-		*dest++ = clamp_u8(out_device_r*255);
+-		*dest++ = clamp_u8(out_device_g*255);
+-		*dest++ = clamp_u8(out_device_b*255);
+-		*dest++ = alpha;
++		dest[r_out] = clamp_u8(out_device_r*255);
++		dest[1]     = clamp_u8(out_device_g*255);
++		dest[b_out] = clamp_u8(out_device_b*255);
++		dest[3]     = alpha;
++		dest += 4;
+ 	}
+ }
+ 
+ 
+-static void qcms_transform_data_gray_out_precache(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length)
++static void qcms_transform_data_gray_out_precache(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+ {
++	const int r_out = output_format.r;
++	const int b_out = output_format.b;
++
+ 	unsigned int i;
+ 	for (i = 0; i < length; i++) {
+ 		unsigned char device = *src++;
+@@ -317,14 +341,19 @@ static void qcms_transform_data_gray_out_precache(qcms_transform *transform, uns
+ 		/* we could round here... */
+ 		gray = linear * PRECACHE_OUTPUT_MAX;
+ 
+-		*dest++ = transform->output_table_r->data[gray];
+-		*dest++ = transform->output_table_g->data[gray];
+-		*dest++ = transform->output_table_b->data[gray];
++		dest[r_out] = transform->output_table_r->data[gray];
++		dest[1]     = transform->output_table_g->data[gray];
++		dest[b_out] = transform->output_table_b->data[gray];
++		dest += 3;
+ 	}
+ }
+ 
+-static void qcms_transform_data_graya_out_precache(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length)
++
++static void qcms_transform_data_graya_out_precache(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+ {
++	const int r_out = output_format.r;
++	const int b_out = output_format.b;
++
+ 	unsigned int i;
+ 	for (i = 0; i < length; i++) {
+ 		unsigned char device = *src++;
+@@ -336,15 +365,19 @@ static void qcms_transform_data_graya_out_precache(qcms_transform *transform, un
+ 		/* we could round here... */
+ 		gray = linear * PRECACHE_OUTPUT_MAX;
+ 
+-		*dest++ = transform->output_table_r->data[gray];
+-		*dest++ = transform->output_table_g->data[gray];
+-		*dest++ = transform->output_table_b->data[gray];
+-		*dest++ = alpha;
++		dest[r_out] = transform->output_table_r->data[gray];
++		dest[1]     = transform->output_table_g->data[gray];
++		dest[b_out] = transform->output_table_b->data[gray];
++		dest[3]     = alpha;
++		dest += 4;
+ 	}
+ }
+ 
+-static void qcms_transform_data_rgb_out_lut_precache(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length)
++static void qcms_transform_data_rgb_out_lut_precache(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+ {
++	const int r_out = output_format.r;
++	const int b_out = output_format.b;
++
+ 	unsigned int i;
+ 	float (*mat)[4] = transform->matrix;
+ 	for (i = 0; i < length; i++) {
+@@ -370,14 +403,18 @@ static void qcms_transform_data_rgb_out_lut_precache(qcms_transform *transform,
+ 		g = out_linear_g * PRECACHE_OUTPUT_MAX;
+ 		b = out_linear_b * PRECACHE_OUTPUT_MAX;
+ 
+-		*dest++ = transform->output_table_r->data[r];
+-		*dest++ = transform->output_table_g->data[g];
+-		*dest++ = transform->output_table_b->data[b];
++		dest[r_out] = transform->output_table_r->data[r];
++		dest[1]     = transform->output_table_g->data[g];
++		dest[b_out] = transform->output_table_b->data[b];
++		dest += 3;
+ 	}
+ }
+ 
+-static void qcms_transform_data_rgba_out_lut_precache(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length)
++static void qcms_transform_data_rgba_out_lut_precache(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+ {
++	const int r_out = output_format.r;
++	const int b_out = output_format.b;
++
+ 	unsigned int i;
+ 	float (*mat)[4] = transform->matrix;
+ 	for (i = 0; i < length; i++) {
+@@ -404,16 +441,21 @@ static void qcms_transform_data_rgba_out_lut_precache(qcms_transform *transform,
+ 		g = out_linear_g * PRECACHE_OUTPUT_MAX;
+ 		b = out_linear_b * PRECACHE_OUTPUT_MAX;
+ 
+-		*dest++ = transform->output_table_r->data[r];
+-		*dest++ = transform->output_table_g->data[g];
+-		*dest++ = transform->output_table_b->data[b];
+-		*dest++ = alpha;
++		dest[r_out] = transform->output_table_r->data[r];
++		dest[1]     = transform->output_table_g->data[g];
++		dest[b_out] = transform->output_table_b->data[b];
++		dest[3]     = alpha;
++		dest += 4;
+ 	}
+ }
+ 
+ // Not used
+ /* 
+-static void qcms_transform_data_clut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length) {
++static void qcms_transform_data_clut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
++{
++	const int r_out = output_format.r;
++	const int b_out = output_format.b;
++
+ 	unsigned int i;
+ 	int xy_len = 1;
+ 	int x_len = transform->grid_size;
+@@ -462,15 +504,20 @@ static void qcms_transform_data_clut(qcms_transform *transform, unsigned char *s
+ 		float b_y2 = lerp(b_x3, b_x4, y_d);
+ 		float clut_b = lerp(b_y1, b_y2, z_d);
+ 
+-		*dest++ = clamp_u8(clut_r*255.0f);
+-		*dest++ = clamp_u8(clut_g*255.0f);
+-		*dest++ = clamp_u8(clut_b*255.0f);
+-	}	
++		dest[r_out] = clamp_u8(clut_r*255.0f);
++		dest[1]     = clamp_u8(clut_g*255.0f);
++		dest[b_out] = clamp_u8(clut_b*255.0f);
++		dest += 3;
++	}
+ }
+ */
+ 
+ // Using lcms' tetra interpolation algorithm.
+-static void qcms_transform_data_tetra_clut_rgba(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length) {
++static void qcms_transform_data_tetra_clut_rgba(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
++{
++	const int r_out = output_format.r;
++	const int b_out = output_format.b;
++
+ 	unsigned int i;
+ 	int xy_len = 1;
+ 	int x_len = transform->grid_size;
+@@ -577,15 +624,20 @@ static void qcms_transform_data_tetra_clut_rgba(qcms_transform *transform, unsig
+ 		clut_g = c0_g + c1_g*rx + c2_g*ry + c3_g*rz;
+ 		clut_b = c0_b + c1_b*rx + c2_b*ry + c3_b*rz;
+ 
+-		*dest++ = clamp_u8(clut_r*255.0f);
+-		*dest++ = clamp_u8(clut_g*255.0f);
+-		*dest++ = clamp_u8(clut_b*255.0f);
+-		*dest++ = in_a;
+-	}	
++		dest[r_out] = clamp_u8(clut_r*255.0f);
++		dest[1]     = clamp_u8(clut_g*255.0f);
++		dest[b_out] = clamp_u8(clut_b*255.0f);
++		dest[3]     = in_a;
++		dest += 4;
++	}
+ }
+ 
+ // Using lcms' tetra interpolation code.
+-static void qcms_transform_data_tetra_clut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length) {
++static void qcms_transform_data_tetra_clut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
++{
++	const int r_out = output_format.r;
++	const int b_out = output_format.b;
++
+ 	unsigned int i;
+ 	int xy_len = 1;
+ 	int x_len = transform->grid_size;
+@@ -691,14 +743,18 @@ static void qcms_transform_data_tetra_clut(qcms_transform *transform, unsigned c
+ 		clut_g = c0_g + c1_g*rx + c2_g*ry + c3_g*rz;
+ 		clut_b = c0_b + c1_b*rx + c2_b*ry + c3_b*rz;
+ 
+-		*dest++ = clamp_u8(clut_r*255.0f);
+-		*dest++ = clamp_u8(clut_g*255.0f);
+-		*dest++ = clamp_u8(clut_b*255.0f);
+-	}	
++		dest[r_out] = clamp_u8(clut_r*255.0f);
++		dest[1]     = clamp_u8(clut_g*255.0f);
++		dest[b_out] = clamp_u8(clut_b*255.0f);
++		dest += 3;
++	}
+ }
+ 
+-static void qcms_transform_data_rgb_out_lut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length)
++static void qcms_transform_data_rgb_out_lut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+ {
++	const int r_out = output_format.r;
++	const int b_out = output_format.b;
++
+ 	unsigned int i;
+ 	float (*mat)[4] = transform->matrix;
+ 	for (i = 0; i < length; i++) {
+@@ -726,14 +782,18 @@ static void qcms_transform_data_rgb_out_lut(qcms_transform *transform, unsigned
+ 		out_device_b = lut_interp_linear(out_linear_b, 
+ 				transform->output_gamma_lut_b, transform->output_gamma_lut_b_length);
+ 
+-		*dest++ = clamp_u8(out_device_r*255);
+-		*dest++ = clamp_u8(out_device_g*255);
+-		*dest++ = clamp_u8(out_device_b*255);
++		dest[r_out] = clamp_u8(out_device_r*255);
++		dest[1]     = clamp_u8(out_device_g*255);
++		dest[b_out] = clamp_u8(out_device_b*255);
++		dest += 3;
+ 	}
+ }
+ 
+-static void qcms_transform_data_rgba_out_lut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length)
++static void qcms_transform_data_rgba_out_lut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+ {
++	const int r_out = output_format.r;
++	const int b_out = output_format.b;
++
+ 	unsigned int i;
+ 	float (*mat)[4] = transform->matrix;
+ 	for (i = 0; i < length; i++) {
+@@ -762,16 +822,20 @@ static void qcms_transform_data_rgba_out_lut(qcms_transform *transform, unsigned
+ 		out_device_b = lut_interp_linear(out_linear_b, 
+ 				transform->output_gamma_lut_b, transform->output_gamma_lut_b_length);
+ 
+-		*dest++ = clamp_u8(out_device_r*255);
+-		*dest++ = clamp_u8(out_device_g*255);
+-		*dest++ = clamp_u8(out_device_b*255);
+-		*dest++ = alpha;
++		dest[r_out] = clamp_u8(out_device_r*255);
++		dest[1]     = clamp_u8(out_device_g*255);
++		dest[b_out] = clamp_u8(out_device_b*255);
++		dest[3]     = alpha;
++		dest += 4;
+ 	}
+ }
+ 
+ #if 0
+-static void qcms_transform_data_rgb_out_linear(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length)
++static void qcms_transform_data_rgb_out_linear(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+ {
++	const int r_out = output_format.r;
++	const int b_out = output_format.b;
++
+ 	int i;
+ 	float (*mat)[4] = transform->matrix;
+ 	for (i = 0; i < length; i++) {
+@@ -787,16 +851,25 @@ static void qcms_transform_data_rgb_out_linear(qcms_transform *transform, unsign
+ 		float out_linear_g = mat[0][1]*linear_r + mat[1][1]*linear_g + mat[2][1]*linear_b;
+ 		float out_linear_b = mat[0][2]*linear_r + mat[1][2]*linear_g + mat[2][2]*linear_b;
+ 
+-		*dest++ = clamp_u8(out_linear_r*255);
+-		*dest++ = clamp_u8(out_linear_g*255);
+-		*dest++ = clamp_u8(out_linear_b*255);
++		dest[r_out] = clamp_u8(out_linear_r*255);
++		dest[1]     = clamp_u8(out_linear_g*255);
++		dest[b_out] = clamp_u8(out_linear_b*255);
++		dest += 3;
+ 	}
+ }
+ #endif
+ 
++/*
++ * If users create and destroy objects on different threads, even if the same
++ * objects aren't used on different threads at the same time, we can still run
++ * in to trouble with refcounts if they aren't atomic.
++ *
++ * This can lead to us prematurely deleting the precache if threads get unlucky
++ * and write the wrong value to the ref count.
++ */
+ static struct precache_output *precache_reference(struct precache_output *p)
+ {
+-	p->ref_count++;
++	qcms_atomic_increment(p->ref_count);
+ 	return p;
+ }
+ 
+@@ -810,12 +883,12 @@ static struct precache_output *precache_create()
+ 
+ void precache_release(struct precache_output *p)
+ {
+-	if (--p->ref_count == 0) {
++	if (qcms_atomic_decrement(p->ref_count) == 0) {
+ 		free(p);
+ 	}
+ }
+ 
+-#ifdef HAS_POSIX_MEMALIGN
++#ifdef HAVE_POSIX_MEMALIGN
+ static qcms_transform *transform_alloc(void)
+ {
+ 	qcms_transform *t;
+@@ -994,13 +1067,15 @@ void qcms_profile_precache_output_transform(qcms_profile *profile)
+ 	if (profile->color_space != RGB_SIGNATURE)
+ 		return;
+ 
+-	/* don't precache since we will use the B2A LUT */
+-	if (profile->B2A0)
+-		return;
++	if (qcms_supports_iccv4) {
++		/* don't precache since we will use the B2A LUT */
++		if (profile->B2A0)
++			return;
+ 
+-	/* don't precache since we will use the mBA LUT */
+-	if (profile->mBA)
+-		return;
++		/* don't precache since we will use the mBA LUT */
++		if (profile->mBA)
++			return;
++	}
+ 
+ 	/* don't precache if we do not have the TRC curves */
+ 	if (!profile->redTRC || !profile->greenTRC || !profile->blueTRC)
+@@ -1078,7 +1153,8 @@ qcms_transform* qcms_transform_precacheLUT_float(qcms_transform *transform, qcms
+ 	//XXX: qcms_modular_transform_data may return either the src or dest buffer. If so it must not be free-ed
+ 	if (src && lut != src) {
+ 		free(src);
+-	} else if (dest && lut != src) {
++	}
++	if (dest && lut != dest) {
+ 		free(dest);
+ 	}
+ 
+@@ -1157,14 +1233,14 @@ qcms_transform* qcms_transform_create(
+                 	return NULL;
+             	}
+ 		if (precache) {
+-#ifdef X86
++#if defined(SSE2_ENABLE) && defined(X86)
+ 		    if (sse_version_available() >= 2) {
+ 			    if (in_type == QCMS_DATA_RGB_8)
+ 				    transform->transform_fn = qcms_transform_data_rgb_out_lut_sse2;
+ 			    else
+ 				    transform->transform_fn = qcms_transform_data_rgba_out_lut_sse2;
+ 
+-#if !(defined(_MSC_VER) && defined(_M_AMD64))
++#if defined(SSE2_ENABLE) && !(defined(_MSC_VER) && defined(_M_AMD64))
+                     /* Microsoft Compiler for x64 doesn't support MMX.
+                      * SSE code uses MMX so that we disable on x64 */
+ 		    } else
+@@ -1256,13 +1332,34 @@ qcms_transform* qcms_transform_create(
+ 	return transform;
+ }
+ 
+-#if defined(__GNUC__) && !defined(__x86_64__) && !defined(__amd64__)
++/* __force_align_arg_pointer__ is an x86-only attribute, and gcc/clang warns on unused
++ * attributes. Don't use this on ARM or AMD64. __has_attribute can detect the presence
++ * of the attribute but is currently only supported by clang */
++#if defined(__has_attribute)
++#define HAS_FORCE_ALIGN_ARG_POINTER __has_attribute(__force_align_arg_pointer__)
++#elif defined(__GNUC__) && !defined(__x86_64__) && !defined(__amd64__) && !defined(__arm__) && !defined(__mips__)
++#define HAS_FORCE_ALIGN_ARG_POINTER 1
++#else
++#define HAS_FORCE_ALIGN_ARG_POINTER 0
++#endif
++
++#if HAS_FORCE_ALIGN_ARG_POINTER
+ /* we need this to avoid crashes when gcc assumes the stack is 128bit aligned */
+ __attribute__((__force_align_arg_pointer__))
+ #endif
+ void qcms_transform_data(qcms_transform *transform, void *src, void *dest, size_t length)
+ {
+-	transform->transform_fn(transform, src, dest, length);
++	static const struct _qcms_format_type output_rgbx = { 0, 2 };
++
++	transform->transform_fn(transform, src, dest, length, output_rgbx);
++}
++
++void qcms_transform_data_type(qcms_transform *transform, void *src, void *dest, size_t length, qcms_output_type type)
++{
++	static const struct _qcms_format_type output_rgbx = { 0, 2 };
++	static const struct _qcms_format_type output_bgrx = { 2, 0 };
++
++	transform->transform_fn(transform, src, dest, length, type == QCMS_OUTPUT_BGRX ? output_bgrx : output_rgbx);
+ }
+ 
+ qcms_bool qcms_supports_iccv4;
+diff --git a/third_party/qcms/src/transform_util.c b/third_party/qcms/src/transform_util.c
+index e8447e5..f4338b2 100644
+--- a/third_party/qcms/src/transform_util.c
++++ b/third_party/qcms/src/transform_util.c
+@@ -36,7 +36,7 @@
+ 
+ /* value must be a value between 0 and 1 */
+ //XXX: is the above a good restriction to have?
+-float lut_interp_linear(double value, uint16_t *table, int length)
++float lut_interp_linear(double value, uint16_t *table, size_t length)
+ {
+ 	int upper, lower;
+ 	value = value * (length - 1); // scale to length of the array
+@@ -49,11 +49,11 @@ float lut_interp_linear(double value, uint16_t *table, int length)
+ }
+ 
+ /* same as above but takes and returns a uint16_t value representing a range from 0..1 */
+-uint16_t lut_interp_linear16(uint16_t input_value, uint16_t *table, int length)
++uint16_t lut_interp_linear16(uint16_t input_value, uint16_t *table, size_t length)
+ {
+ 	/* Start scaling input_value to the length of the array: 65535*(length-1).
+ 	 * We'll divide out the 65535 next */
+-	uint32_t value = (input_value * (length - 1));
++	uintptr_t value = (input_value * (length - 1));
+ 	uint32_t upper = (value + 65534) / 65535; /* equivalent to ceil(value/65535) */
+ 	uint32_t lower = value / 65535;           /* equivalent to floor(value/65535) */
+ 	/* interp is the distance from upper to value scaled to 0..65535 */
+@@ -67,11 +67,11 @@ uint16_t lut_interp_linear16(uint16_t input_value, uint16_t *table, int length)
+ /* same as above but takes an input_value from 0..PRECACHE_OUTPUT_MAX
+  * and returns a uint8_t value representing a range from 0..1 */
+ static
+-uint8_t lut_interp_linear_precache_output(uint32_t input_value, uint16_t *table, int length)
++uint8_t lut_interp_linear_precache_output(uint32_t input_value, uint16_t *table, size_t length)
+ {
+ 	/* Start scaling input_value to the length of the array: PRECACHE_OUTPUT_MAX*(length-1).
+ 	 * We'll divide out the PRECACHE_OUTPUT_MAX next */
+-	uint32_t value = (input_value * (length - 1));
++	uintptr_t value = (input_value * (length - 1));
+ 
+ 	/* equivalent to ceil(value/PRECACHE_OUTPUT_MAX) */
+ 	uint32_t upper = (value + PRECACHE_OUTPUT_MAX-1) / PRECACHE_OUTPUT_MAX;
+@@ -91,7 +91,7 @@ uint8_t lut_interp_linear_precache_output(uint32_t input_value, uint16_t *table,
+ 
+ /* value must be a value between 0 and 1 */
+ //XXX: is the above a good restriction to have?
+-float lut_interp_linear_float(float value, float *table, int length)
++float lut_interp_linear_float(float value, float *table, size_t length)
+ {
+         int upper, lower;
+         value = value * (length - 1);
+@@ -235,6 +235,21 @@ float u8Fixed8Number_to_float(uint16_t x)
+ 	return x/256.;
+ }
+ 
++/* The SSE2 code uses min & max which let NaNs pass through.
++   We want to try to prevent that here by ensuring that
++   gamma table is within expected values. */
++void validate_gamma_table(float gamma_table[256])
++{
++	int i;
++	for (i = 0; i < 256; i++) {
++		// Note: we check that the gamma is not in range
++		// instead of out of range so that we catch NaNs
++		if (!(gamma_table[i] >= 0.f && gamma_table[i] <= 1.f)) {
++			gamma_table[i] = 0.f;
++		}
++	}
++}
++
+ float *build_input_gamma_table(struct curveType *TRC)
+ {
+ 	float *gamma_table;
+@@ -254,7 +269,10 @@ float *build_input_gamma_table(struct curveType *TRC)
+ 			}
+ 		}
+ 	}
+-        return gamma_table;
++
++	validate_gamma_table(gamma_table);
++
++	return gamma_table;
+ }
+ 
+ struct matrix build_colorant_matrix(qcms_profile *p)
+@@ -390,7 +408,7 @@ uint16_fract_t lut_inverse_interp16(uint16_t Value, uint16_t LutTable[], int len
+  which has an maximum error of about 9855 (pixel difference of ~38.346)
+ 
+  For now, we punt the decision of output size to the caller. */
+-static uint16_t *invert_lut(uint16_t *table, int length, int out_length)
++static uint16_t *invert_lut(uint16_t *table, int length, size_t out_length)
+ {
+         int i;
+         /* for now we invert the lut by creating a lut of size out_length
+diff --git a/third_party/qcms/src/transform_util.h b/third_party/qcms/src/transform_util.h
+index 8f358a8..de465f4 100644
+--- a/third_party/qcms/src/transform_util.h
++++ b/third_party/qcms/src/transform_util.h
+@@ -31,9 +31,9 @@
+ //XXX: could use a bettername
+ typedef uint16_t uint16_fract_t;
+ 
+-float lut_interp_linear(double value, uint16_t *table, int length);
+-float lut_interp_linear_float(float value, float *table, int length);
+-uint16_t lut_interp_linear16(uint16_t input_value, uint16_t *table, int length);
++float lut_interp_linear(double value, uint16_t *table, size_t length);
++float lut_interp_linear_float(float value, float *table, size_t length);
++uint16_t lut_interp_linear16(uint16_t input_value, uint16_t *table, size_t length);
+ 
+ 
+ static inline float lerp(float a, float b, float t)
diff --git a/third_party/qcms/qcms.gyp b/third_party/qcms/qcms.gyp
new file mode 100644
index 0000000..298f615
--- /dev/null
+++ b/third_party/qcms/qcms.gyp
@@ -0,0 +1,65 @@
+# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+{
+  'targets': [
+    {
+      'target_name': 'qcms',
+      'product_name': 'qcms',
+      'type': 'static_library',
+      'sources': [
+        'src/chain.c',
+        'src/chain.h',
+        'src/iccread.c',
+        'src/matrix.c',
+        'src/matrix.h',
+        'src/qcms.h',
+        'src/qcmsint.h',
+        'src/qcmstypes.h',
+        'src/transform.c',
+        'src/transform_util.c',
+        'src/transform_util.h',
+      ],
+      'direct_dependent_settings': {
+        'include_dirs': [
+          './src',
+        ],
+      },
+      # Warning (sign-conversion) fixed upstream by large refactoring. Can be
+      # removed on next roll.
+      'msvs_disabled_warnings': [ 4018 ],
+
+      'conditions': [
+        ['target_arch=="ia32" or target_arch=="x64"', {
+          'defines': [
+            'SSE2_ENABLE',
+          ],
+          'sources': [
+            'src/transform-sse1.c',
+            'src/transform-sse2.c',
+          ],
+        }],
+        # QCMS assumes this target isn't compiled since MSVC x64 doesn't support
+        # the MMX intrinsics present in the SSE1 code.
+        ['OS=="win" and target_arch=="x64"', {
+          'sources!': [
+            'src/transform-sse1.c',
+          ],
+        }],
+        ['OS == "win" and (MSVS_VERSION == "2013" or MSVS_VERSION == "2013e")', {
+          'msvs_disabled_warnings': [
+            4056,  # overflow in floating-point constant arithmetic (INFINITY)
+            4756,  # overflow in constant arithmetic (INFINITY)
+          ],
+        }],
+      ],
+    },
+  ],
+}
+
+# Local Variables:
+# tab-width:2
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=2 shiftwidth=2:
diff --git a/third_party/qcms/src/COPYING b/third_party/qcms/src/COPYING
new file mode 100644
index 0000000..76b303b
--- /dev/null
+++ b/third_party/qcms/src/COPYING
@@ -0,0 +1,21 @@
+qcms
+Copyright (C) 2009 Mozilla Corporation
+Copyright (C) 1998-2007 Marti Maria
+
+Permission is hereby granted, free of charge, to any person obtaining 
+a copy of this software and associated documentation files (the "Software"), 
+to deal in the Software without restriction, including without limitation 
+the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+and/or sell copies of the Software, and to permit persons to whom the Software 
+is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in 
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO 
+THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/third_party/qcms/src/README b/third_party/qcms/src/README
new file mode 100644
index 0000000..e3d95a3
--- /dev/null
+++ b/third_party/qcms/src/README
@@ -0,0 +1,9 @@
+qcms
+====
+
+Quick color management.
+
+Current limitations
+-----------
+- Only supports RGB and Gray colorspaces. e.g. no support for CMYK yet.
+- Only packed RGB and RGBA, K, and KA.
diff --git a/third_party/qcms/src/chain.c b/third_party/qcms/src/chain.c
new file mode 100644
index 0000000..a259499
--- /dev/null
+++ b/third_party/qcms/src/chain.c
@@ -0,0 +1,989 @@
+/* vim: set ts=8 sw=8 noexpandtab: */
+//  qcms
+//  Copyright (C) 2009 Mozilla Corporation
+//  Copyright (C) 1998-2007 Marti Maria
+//
+// Permission is hereby granted, free of charge, to any person obtaining 
+// a copy of this software and associated documentation files (the "Software"), 
+// to deal in the Software without restriction, including without limitation 
+// the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+// and/or sell copies of the Software, and to permit persons to whom the Software 
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in 
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO 
+// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#include <stdlib.h>
+#include <math.h>
+#include <assert.h>
+#include <string.h> //memcpy
+#include "qcmsint.h"
+#include "transform_util.h"
+#include "matrix.h"
+
+static struct matrix build_lut_matrix(struct lutType *lut)
+{
+	struct matrix result;
+	if (lut) {
+		result.m[0][0] = s15Fixed16Number_to_float(lut->e00);
+		result.m[0][1] = s15Fixed16Number_to_float(lut->e01);
+		result.m[0][2] = s15Fixed16Number_to_float(lut->e02);
+		result.m[1][0] = s15Fixed16Number_to_float(lut->e10);
+		result.m[1][1] = s15Fixed16Number_to_float(lut->e11);
+		result.m[1][2] = s15Fixed16Number_to_float(lut->e12);
+		result.m[2][0] = s15Fixed16Number_to_float(lut->e20);
+		result.m[2][1] = s15Fixed16Number_to_float(lut->e21);
+		result.m[2][2] = s15Fixed16Number_to_float(lut->e22);
+		result.invalid = false;
+	} else {
+		memset(&result, 0, sizeof(struct matrix));
+		result.invalid = true;
+	}
+	return result;
+}
+
+static struct matrix build_mAB_matrix(struct lutmABType *lut)
+{
+	struct matrix result;
+	if (lut) {
+		result.m[0][0] = s15Fixed16Number_to_float(lut->e00);
+		result.m[0][1] = s15Fixed16Number_to_float(lut->e01);
+		result.m[0][2] = s15Fixed16Number_to_float(lut->e02);
+		result.m[1][0] = s15Fixed16Number_to_float(lut->e10);
+		result.m[1][1] = s15Fixed16Number_to_float(lut->e11);
+		result.m[1][2] = s15Fixed16Number_to_float(lut->e12);
+		result.m[2][0] = s15Fixed16Number_to_float(lut->e20);
+		result.m[2][1] = s15Fixed16Number_to_float(lut->e21);
+		result.m[2][2] = s15Fixed16Number_to_float(lut->e22);
+		result.invalid = false;
+	} else {
+		memset(&result, 0, sizeof(struct matrix));
+		result.invalid = true;
+	}
+	return result;
+}
+
+//Based on lcms cmsLab2XYZ
+#define f(t) (t <= (24.0f/116.0f)*(24.0f/116.0f)*(24.0f/116.0f)) ? ((841.0/108.0) * t + (16.0/116.0)) : pow(t,1.0/3.0)
+#define f_1(t) (t <= (24.0f/116.0f)) ? ((108.0/841.0) * (t - (16.0/116.0))) : (t * t * t)
+static void qcms_transform_module_LAB_to_XYZ(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
+{
+	size_t i;
+	// lcms: D50 XYZ values
+	float WhitePointX = 0.9642f;
+	float WhitePointY = 1.0f;
+	float WhitePointZ = 0.8249f;
+	for (i = 0; i < length; i++) {
+		float device_L = *src++ * 100.0f;
+		float device_a = *src++ * 255.0f - 128.0f;
+		float device_b = *src++ * 255.0f - 128.0f;
+		float y = (device_L + 16.0f) / 116.0f;
+
+		float X = f_1((y + 0.002f * device_a)) * WhitePointX;
+		float Y = f_1(y) * WhitePointY;
+		float Z = f_1((y - 0.005f * device_b)) * WhitePointZ;
+		*dest++ = X / (1.0 + 32767.0/32768.0);
+		*dest++ = Y / (1.0 + 32767.0/32768.0);
+		*dest++ = Z / (1.0 + 32767.0/32768.0);
+	}
+}
+
+//Based on lcms cmsXYZ2Lab
+static void qcms_transform_module_XYZ_to_LAB(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
+{
+	size_t i;
+        // lcms: D50 XYZ values
+        float WhitePointX = 0.9642f;
+        float WhitePointY = 1.0f;
+        float WhitePointZ = 0.8249f;
+        for (i = 0; i < length; i++) {
+                float device_x = *src++ * (1.0 + 32767.0/32768.0) / WhitePointX;
+                float device_y = *src++ * (1.0 + 32767.0/32768.0) / WhitePointY;
+                float device_z = *src++ * (1.0 + 32767.0/32768.0) / WhitePointZ;
+
+		float fx = f(device_x);
+		float fy = f(device_y);
+		float fz = f(device_z);
+
+                float L = 116.0f*fy - 16.0f;
+                float a = 500.0f*(fx - fy);
+                float b = 200.0f*(fy - fz);
+                *dest++ = L / 100.0f;
+                *dest++ = (a+128.0f) / 255.0f;
+                *dest++ = (b+128.0f) / 255.0f;
+        }
+
+}
+
+static void qcms_transform_module_clut_only(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
+{
+	size_t i;
+	int xy_len = 1;
+	int x_len = transform->grid_size;
+	int len = x_len * x_len;
+	float* r_table = transform->r_clut;
+	float* g_table = transform->g_clut;
+	float* b_table = transform->b_clut;
+
+	for (i = 0; i < length; i++) {
+		float linear_r = *src++;
+		float linear_g = *src++;
+		float linear_b = *src++;
+
+		int x = floor(linear_r * (transform->grid_size-1));
+		int y = floor(linear_g * (transform->grid_size-1));
+		int z = floor(linear_b * (transform->grid_size-1));
+		int x_n = ceil(linear_r * (transform->grid_size-1));
+		int y_n = ceil(linear_g * (transform->grid_size-1));
+		int z_n = ceil(linear_b * (transform->grid_size-1));
+		float x_d = linear_r * (transform->grid_size-1) - x;
+		float y_d = linear_g * (transform->grid_size-1) - y;
+		float z_d = linear_b * (transform->grid_size-1) - z;
+
+		float r_x1 = lerp(CLU(r_table,x,y,z), CLU(r_table,x_n,y,z), x_d);
+		float r_x2 = lerp(CLU(r_table,x,y_n,z), CLU(r_table,x_n,y_n,z), x_d);
+		float r_y1 = lerp(r_x1, r_x2, y_d);
+		float r_x3 = lerp(CLU(r_table,x,y,z_n), CLU(r_table,x_n,y,z_n), x_d);
+		float r_x4 = lerp(CLU(r_table,x,y_n,z_n), CLU(r_table,x_n,y_n,z_n), x_d);
+		float r_y2 = lerp(r_x3, r_x4, y_d);
+		float clut_r = lerp(r_y1, r_y2, z_d);
+
+		float g_x1 = lerp(CLU(g_table,x,y,z), CLU(g_table,x_n,y,z), x_d);
+		float g_x2 = lerp(CLU(g_table,x,y_n,z), CLU(g_table,x_n,y_n,z), x_d);
+		float g_y1 = lerp(g_x1, g_x2, y_d);
+		float g_x3 = lerp(CLU(g_table,x,y,z_n), CLU(g_table,x_n,y,z_n), x_d);
+		float g_x4 = lerp(CLU(g_table,x,y_n,z_n), CLU(g_table,x_n,y_n,z_n), x_d);
+		float g_y2 = lerp(g_x3, g_x4, y_d);
+		float clut_g = lerp(g_y1, g_y2, z_d);
+
+		float b_x1 = lerp(CLU(b_table,x,y,z), CLU(b_table,x_n,y,z), x_d);
+		float b_x2 = lerp(CLU(b_table,x,y_n,z), CLU(b_table,x_n,y_n,z), x_d);
+		float b_y1 = lerp(b_x1, b_x2, y_d);
+		float b_x3 = lerp(CLU(b_table,x,y,z_n), CLU(b_table,x_n,y,z_n), x_d);
+		float b_x4 = lerp(CLU(b_table,x,y_n,z_n), CLU(b_table,x_n,y_n,z_n), x_d);
+		float b_y2 = lerp(b_x3, b_x4, y_d);
+		float clut_b = lerp(b_y1, b_y2, z_d);
+
+		*dest++ = clamp_float(clut_r);
+		*dest++ = clamp_float(clut_g);
+		*dest++ = clamp_float(clut_b);
+	}
+}
+
+static void qcms_transform_module_clut(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
+{
+	size_t i;
+	int xy_len = 1;
+	int x_len = transform->grid_size;
+	int len = x_len * x_len;
+	float* r_table = transform->r_clut;
+	float* g_table = transform->g_clut;
+	float* b_table = transform->b_clut;
+	for (i = 0; i < length; i++) {
+		float device_r = *src++;
+		float device_g = *src++;
+		float device_b = *src++;
+		float linear_r = lut_interp_linear_float(device_r,
+				transform->input_clut_table_r, transform->input_clut_table_length);
+		float linear_g = lut_interp_linear_float(device_g,
+				transform->input_clut_table_g, transform->input_clut_table_length);
+		float linear_b = lut_interp_linear_float(device_b,
+				transform->input_clut_table_b, transform->input_clut_table_length);
+
+		int x = floor(linear_r * (transform->grid_size-1));
+		int y = floor(linear_g * (transform->grid_size-1));
+		int z = floor(linear_b * (transform->grid_size-1));
+		int x_n = ceil(linear_r * (transform->grid_size-1));
+		int y_n = ceil(linear_g * (transform->grid_size-1));
+		int z_n = ceil(linear_b * (transform->grid_size-1));
+		float x_d = linear_r * (transform->grid_size-1) - x;
+		float y_d = linear_g * (transform->grid_size-1) - y;
+		float z_d = linear_b * (transform->grid_size-1) - z;
+
+		float r_x1 = lerp(CLU(r_table,x,y,z), CLU(r_table,x_n,y,z), x_d);
+		float r_x2 = lerp(CLU(r_table,x,y_n,z), CLU(r_table,x_n,y_n,z), x_d);
+		float r_y1 = lerp(r_x1, r_x2, y_d);
+		float r_x3 = lerp(CLU(r_table,x,y,z_n), CLU(r_table,x_n,y,z_n), x_d);
+		float r_x4 = lerp(CLU(r_table,x,y_n,z_n), CLU(r_table,x_n,y_n,z_n), x_d);
+		float r_y2 = lerp(r_x3, r_x4, y_d);
+		float clut_r = lerp(r_y1, r_y2, z_d);
+
+		float g_x1 = lerp(CLU(g_table,x,y,z), CLU(g_table,x_n,y,z), x_d);
+		float g_x2 = lerp(CLU(g_table,x,y_n,z), CLU(g_table,x_n,y_n,z), x_d);
+		float g_y1 = lerp(g_x1, g_x2, y_d);
+		float g_x3 = lerp(CLU(g_table,x,y,z_n), CLU(g_table,x_n,y,z_n), x_d);
+		float g_x4 = lerp(CLU(g_table,x,y_n,z_n), CLU(g_table,x_n,y_n,z_n), x_d);
+		float g_y2 = lerp(g_x3, g_x4, y_d);
+		float clut_g = lerp(g_y1, g_y2, z_d);
+
+		float b_x1 = lerp(CLU(b_table,x,y,z), CLU(b_table,x_n,y,z), x_d);
+		float b_x2 = lerp(CLU(b_table,x,y_n,z), CLU(b_table,x_n,y_n,z), x_d);
+		float b_y1 = lerp(b_x1, b_x2, y_d);
+		float b_x3 = lerp(CLU(b_table,x,y,z_n), CLU(b_table,x_n,y,z_n), x_d);
+		float b_x4 = lerp(CLU(b_table,x,y_n,z_n), CLU(b_table,x_n,y_n,z_n), x_d);
+		float b_y2 = lerp(b_x3, b_x4, y_d);
+		float clut_b = lerp(b_y1, b_y2, z_d);
+
+		float pcs_r = lut_interp_linear_float(clut_r,
+				transform->output_clut_table_r, transform->output_clut_table_length);
+		float pcs_g = lut_interp_linear_float(clut_g,
+				transform->output_clut_table_g, transform->output_clut_table_length);
+		float pcs_b = lut_interp_linear_float(clut_b,
+				transform->output_clut_table_b, transform->output_clut_table_length);
+
+		*dest++ = clamp_float(pcs_r);
+		*dest++ = clamp_float(pcs_g);
+		*dest++ = clamp_float(pcs_b);
+	}
+}
+
+/* NOT USED
+static void qcms_transform_module_tetra_clut(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
+{
+	size_t i;
+	int xy_len = 1;
+	int x_len = transform->grid_size;
+	int len = x_len * x_len;
+	float* r_table = transform->r_clut;
+	float* g_table = transform->g_clut;
+	float* b_table = transform->b_clut;
+	float c0_r, c1_r, c2_r, c3_r;
+	float c0_g, c1_g, c2_g, c3_g;
+	float c0_b, c1_b, c2_b, c3_b;
+	float clut_r, clut_g, clut_b;
+	float pcs_r, pcs_g, pcs_b;
+	for (i = 0; i < length; i++) {
+		float device_r = *src++;
+		float device_g = *src++;
+		float device_b = *src++;
+		float linear_r = lut_interp_linear_float(device_r,
+				transform->input_clut_table_r, transform->input_clut_table_length);
+		float linear_g = lut_interp_linear_float(device_g,
+				transform->input_clut_table_g, transform->input_clut_table_length);
+		float linear_b = lut_interp_linear_float(device_b,
+				transform->input_clut_table_b, transform->input_clut_table_length);
+
+		int x = floor(linear_r * (transform->grid_size-1));
+		int y = floor(linear_g * (transform->grid_size-1));
+		int z = floor(linear_b * (transform->grid_size-1));
+		int x_n = ceil(linear_r * (transform->grid_size-1));
+		int y_n = ceil(linear_g * (transform->grid_size-1));
+		int z_n = ceil(linear_b * (transform->grid_size-1));
+		float rx = linear_r * (transform->grid_size-1) - x;
+		float ry = linear_g * (transform->grid_size-1) - y;
+		float rz = linear_b * (transform->grid_size-1) - z;
+
+		c0_r = CLU(r_table, x, y, z);
+		c0_g = CLU(g_table, x, y, z);
+		c0_b = CLU(b_table, x, y, z);
+		if( rx >= ry ) {
+			if (ry >= rz) { //rx >= ry && ry >= rz
+				c1_r = CLU(r_table, x_n, y, z) - c0_r;
+				c2_r = CLU(r_table, x_n, y_n, z) - CLU(r_table, x_n, y, z);
+				c3_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y_n, z);
+				c1_g = CLU(g_table, x_n, y, z) - c0_g;
+				c2_g = CLU(g_table, x_n, y_n, z) - CLU(g_table, x_n, y, z);
+				c3_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y_n, z);
+				c1_b = CLU(b_table, x_n, y, z) - c0_b;
+				c2_b = CLU(b_table, x_n, y_n, z) - CLU(b_table, x_n, y, z);
+				c3_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y_n, z);
+			} else {
+				if (rx >= rz) { //rx >= rz && rz >= ry
+					c1_r = CLU(r_table, x_n, y, z) - c0_r;
+					c2_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y, z_n);
+					c3_r = CLU(r_table, x_n, y, z_n) - CLU(r_table, x_n, y, z);
+					c1_g = CLU(g_table, x_n, y, z) - c0_g;
+					c2_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y, z_n);
+					c3_g = CLU(g_table, x_n, y, z_n) - CLU(g_table, x_n, y, z);
+					c1_b = CLU(b_table, x_n, y, z) - c0_b;
+					c2_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y, z_n);
+					c3_b = CLU(b_table, x_n, y, z_n) - CLU(b_table, x_n, y, z);
+				} else { //rz > rx && rx >= ry
+					c1_r = CLU(r_table, x_n, y, z_n) - CLU(r_table, x, y, z_n);
+					c2_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y, z_n);
+					c3_r = CLU(r_table, x, y, z_n) - c0_r;
+					c1_g = CLU(g_table, x_n, y, z_n) - CLU(g_table, x, y, z_n);
+					c2_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y, z_n);
+					c3_g = CLU(g_table, x, y, z_n) - c0_g;
+					c1_b = CLU(b_table, x_n, y, z_n) - CLU(b_table, x, y, z_n);
+					c2_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y, z_n);
+					c3_b = CLU(b_table, x, y, z_n) - c0_b;
+				}
+			}
+		} else {
+			if (rx >= rz) { //ry > rx && rx >= rz
+				c1_r = CLU(r_table, x_n, y_n, z) - CLU(r_table, x, y_n, z);
+				c2_r = CLU(r_table, x_n, y_n, z) - c0_r;
+				c3_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y_n, z);
+				c1_g = CLU(g_table, x_n, y_n, z) - CLU(g_table, x, y_n, z);
+				c2_g = CLU(g_table, x_n, y_n, z) - c0_g;
+				c3_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y_n, z);
+				c1_b = CLU(b_table, x_n, y_n, z) - CLU(b_table, x, y_n, z);
+				c2_b = CLU(b_table, x_n, y_n, z) - c0_b;
+				c3_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y_n, z);
+			} else {
+				if (ry >= rz) { //ry >= rz && rz > rx 
+					c1_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x, y_n, z_n);
+					c2_r = CLU(r_table, x, y_n, z) - c0_r;
+					c3_r = CLU(r_table, x, y_n, z_n) - CLU(r_table, x, y_n, z);
+					c1_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x, y_n, z_n);
+					c2_g = CLU(g_table, x, y_n, z) - c0_g;
+					c3_g = CLU(g_table, x, y_n, z_n) - CLU(g_table, x, y_n, z);
+					c1_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x, y_n, z_n);
+					c2_b = CLU(b_table, x, y_n, z) - c0_b;
+					c3_b = CLU(b_table, x, y_n, z_n) - CLU(b_table, x, y_n, z);
+				} else { //rz > ry && ry > rx
+					c1_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x, y_n, z_n);
+					c2_r = CLU(r_table, x, y_n, z) - c0_r;
+					c3_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y_n, z);
+					c1_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x, y_n, z_n);
+					c2_g = CLU(g_table, x, y_n, z) - c0_g;
+					c3_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y_n, z);
+					c1_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x, y_n, z_n);
+					c2_b = CLU(b_table, x, y_n, z) - c0_b;
+					c3_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y_n, z);
+				}
+			}
+		}
+
+		clut_r = c0_r + c1_r*rx + c2_r*ry + c3_r*rz;
+		clut_g = c0_g + c1_g*rx + c2_g*ry + c3_g*rz;
+		clut_b = c0_b + c1_b*rx + c2_b*ry + c3_b*rz;
+
+		pcs_r = lut_interp_linear_float(clut_r,
+				transform->output_clut_table_r, transform->output_clut_table_length);
+		pcs_g = lut_interp_linear_float(clut_g,
+				transform->output_clut_table_g, transform->output_clut_table_length);
+		pcs_b = lut_interp_linear_float(clut_b,
+				transform->output_clut_table_b, transform->output_clut_table_length);
+		*dest++ = clamp_float(pcs_r);
+		*dest++ = clamp_float(pcs_g);
+		*dest++ = clamp_float(pcs_b);
+	}
+}
+*/
+
+static void qcms_transform_module_gamma_table(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
+{
+	size_t i;
+	float out_r, out_g, out_b;
+	for (i = 0; i < length; i++) {
+		float in_r = *src++;
+		float in_g = *src++;
+		float in_b = *src++;
+
+		out_r = lut_interp_linear_float(in_r, transform->input_clut_table_r, 256);
+		out_g = lut_interp_linear_float(in_g, transform->input_clut_table_g, 256);
+		out_b = lut_interp_linear_float(in_b, transform->input_clut_table_b, 256);
+
+		*dest++ = clamp_float(out_r);
+		*dest++ = clamp_float(out_g);
+		*dest++ = clamp_float(out_b);
+	}
+}
+
+static void qcms_transform_module_gamma_lut(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
+{
+	size_t i;
+	float out_r, out_g, out_b;
+	for (i = 0; i < length; i++) {
+		float in_r = *src++;
+		float in_g = *src++;
+		float in_b = *src++;
+
+		out_r = lut_interp_linear(in_r,
+				transform->output_gamma_lut_r, transform->output_gamma_lut_r_length);
+		out_g = lut_interp_linear(in_g,
+				transform->output_gamma_lut_g, transform->output_gamma_lut_g_length);
+		out_b = lut_interp_linear(in_b,
+				transform->output_gamma_lut_b, transform->output_gamma_lut_b_length);
+
+		*dest++ = clamp_float(out_r);
+		*dest++ = clamp_float(out_g);
+		*dest++ = clamp_float(out_b);
+	}
+}
+
+static void qcms_transform_module_matrix_translate(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
+{
+	size_t i;
+	struct matrix mat;
+
+	/* store the results in column major mode
+	 * this makes doing the multiplication with sse easier */
+	mat.m[0][0] = transform->matrix.m[0][0];
+	mat.m[1][0] = transform->matrix.m[0][1];
+	mat.m[2][0] = transform->matrix.m[0][2];
+	mat.m[0][1] = transform->matrix.m[1][0];
+	mat.m[1][1] = transform->matrix.m[1][1];
+	mat.m[2][1] = transform->matrix.m[1][2];
+	mat.m[0][2] = transform->matrix.m[2][0];
+	mat.m[1][2] = transform->matrix.m[2][1];
+	mat.m[2][2] = transform->matrix.m[2][2];
+
+	for (i = 0; i < length; i++) {
+		float in_r = *src++;
+		float in_g = *src++;
+		float in_b = *src++;
+
+		float out_r = mat.m[0][0]*in_r + mat.m[1][0]*in_g + mat.m[2][0]*in_b + transform->tx;
+		float out_g = mat.m[0][1]*in_r + mat.m[1][1]*in_g + mat.m[2][1]*in_b + transform->ty;
+		float out_b = mat.m[0][2]*in_r + mat.m[1][2]*in_g + mat.m[2][2]*in_b + transform->tz;
+
+		*dest++ = clamp_float(out_r);
+		*dest++ = clamp_float(out_g);
+		*dest++ = clamp_float(out_b);
+	}
+}
+
+static void qcms_transform_module_matrix(struct qcms_modular_transform *transform, float *src, float *dest, size_t length)
+{
+	size_t i;
+	struct matrix mat;
+
+	/* store the results in column major mode
+	 * this makes doing the multiplication with sse easier */
+	mat.m[0][0] = transform->matrix.m[0][0];
+	mat.m[1][0] = transform->matrix.m[0][1];
+	mat.m[2][0] = transform->matrix.m[0][2];
+	mat.m[0][1] = transform->matrix.m[1][0];
+	mat.m[1][1] = transform->matrix.m[1][1];
+	mat.m[2][1] = transform->matrix.m[1][2];
+	mat.m[0][2] = transform->matrix.m[2][0];
+	mat.m[1][2] = transform->matrix.m[2][1];
+	mat.m[2][2] = transform->matrix.m[2][2];
+
+	for (i = 0; i < length; i++) {
+		float in_r = *src++;
+		float in_g = *src++;
+		float in_b = *src++;
+
+		float out_r = mat.m[0][0]*in_r + mat.m[1][0]*in_g + mat.m[2][0]*in_b;
+		float out_g = mat.m[0][1]*in_r + mat.m[1][1]*in_g + mat.m[2][1]*in_b;
+		float out_b = mat.m[0][2]*in_r + mat.m[1][2]*in_g + mat.m[2][2]*in_b;
+
+		*dest++ = clamp_float(out_r);
+		*dest++ = clamp_float(out_g);
+		*dest++ = clamp_float(out_b);
+	}
+}
+
+static struct qcms_modular_transform* qcms_modular_transform_alloc() {
+	return calloc(1, sizeof(struct qcms_modular_transform));
+}
+
+static void qcms_modular_transform_release(struct qcms_modular_transform *transform)
+{
+	struct qcms_modular_transform *next_transform;
+	while (transform != NULL) {
+		next_transform = transform->next_transform;
+		// clut may use a single block of memory.
+		// Perhaps we should remove this to simply the code.
+		if (transform->input_clut_table_r + transform->input_clut_table_length == transform->input_clut_table_g && transform->input_clut_table_g + transform->input_clut_table_length == transform->input_clut_table_b) {
+			if (transform->input_clut_table_r) free(transform->input_clut_table_r);
+		} else {
+			if (transform->input_clut_table_r) free(transform->input_clut_table_r);
+			if (transform->input_clut_table_g) free(transform->input_clut_table_g);
+			if (transform->input_clut_table_b) free(transform->input_clut_table_b);
+		}
+		if (transform->r_clut + 1 == transform->g_clut && transform->g_clut + 1 == transform->b_clut) {
+			if (transform->r_clut) free(transform->r_clut);
+		} else {
+			if (transform->r_clut) free(transform->r_clut);
+			if (transform->g_clut) free(transform->g_clut);
+			if (transform->b_clut) free(transform->b_clut);
+		}
+		if (transform->output_clut_table_r + transform->output_clut_table_length == transform->output_clut_table_g && transform->output_clut_table_g+ transform->output_clut_table_length == transform->output_clut_table_b) {
+			if (transform->output_clut_table_r) free(transform->output_clut_table_r);
+		} else {
+			if (transform->output_clut_table_r) free(transform->output_clut_table_r);
+			if (transform->output_clut_table_g) free(transform->output_clut_table_g);
+			if (transform->output_clut_table_b) free(transform->output_clut_table_b);
+		}
+		if (transform->output_gamma_lut_r) free(transform->output_gamma_lut_r);
+		if (transform->output_gamma_lut_g) free(transform->output_gamma_lut_g);
+		if (transform->output_gamma_lut_b) free(transform->output_gamma_lut_b);
+		free(transform);
+		transform = next_transform;
+	}
+}
+
+/* Set transform to be the next element in the linked list. */
+static void append_transform(struct qcms_modular_transform *transform, struct qcms_modular_transform ***next_transform)
+{
+	**next_transform = transform;
+	while (transform) {
+		*next_transform = &(transform->next_transform);
+		transform = transform->next_transform;
+	}
+}
+
+/* reverse the transformation list (used by mBA) */
+static struct qcms_modular_transform* reverse_transform(struct qcms_modular_transform *transform) 
+{
+	struct qcms_modular_transform *prev_transform = NULL;
+	while (transform != NULL) {
+		struct qcms_modular_transform *next_transform = transform->next_transform;
+		transform->next_transform = prev_transform;
+		prev_transform = transform;
+		transform = next_transform;
+	}
+	
+	return prev_transform;
+}
+
+#define EMPTY_TRANSFORM_LIST NULL
+static struct qcms_modular_transform* qcms_modular_transform_create_mAB(struct lutmABType *lut)
+{
+	struct qcms_modular_transform *first_transform = NULL;
+	struct qcms_modular_transform **next_transform = &first_transform;
+	struct qcms_modular_transform *transform = NULL;
+
+	if (lut->a_curves[0] != NULL) {
+		size_t clut_length;
+		float *clut;
+
+		// If the A curve is present this also implies the 
+		// presence of a CLUT.
+		if (!lut->clut_table) 
+			goto fail;
+
+		// Prepare A curve.
+		transform = qcms_modular_transform_alloc();
+		if (!transform)
+			goto fail;
+		append_transform(transform, &next_transform);
+		transform->input_clut_table_r = build_input_gamma_table(lut->a_curves[0]);
+		transform->input_clut_table_g = build_input_gamma_table(lut->a_curves[1]);
+		transform->input_clut_table_b = build_input_gamma_table(lut->a_curves[2]);
+		transform->transform_module_fn = qcms_transform_module_gamma_table;
+		if (lut->num_grid_points[0] != lut->num_grid_points[1] ||
+			lut->num_grid_points[1] != lut->num_grid_points[2] ) {
+			//XXX: We don't currently support clut that are not squared!
+			goto fail;
+		}
+
+		// Prepare CLUT
+		transform = qcms_modular_transform_alloc();
+		if (!transform) 
+			goto fail;
+		append_transform(transform, &next_transform);
+		clut_length = sizeof(float)*pow(lut->num_grid_points[0], 3)*3;
+		clut = malloc(clut_length);
+		if (!clut)
+			goto fail;
+		memcpy(clut, lut->clut_table, clut_length);
+		transform->r_clut = clut + 0;
+		transform->g_clut = clut + 1;
+		transform->b_clut = clut + 2;
+		transform->grid_size = lut->num_grid_points[0];
+		transform->transform_module_fn = qcms_transform_module_clut_only;
+	}
+	if (lut->m_curves[0] != NULL) {
+		// M curve imples the presence of a Matrix
+
+		// Prepare M curve
+		transform = qcms_modular_transform_alloc();
+		if (!transform)
+			goto fail;
+		append_transform(transform, &next_transform);
+		transform->input_clut_table_r = build_input_gamma_table(lut->m_curves[0]);
+		transform->input_clut_table_g = build_input_gamma_table(lut->m_curves[1]);
+		transform->input_clut_table_b = build_input_gamma_table(lut->m_curves[2]);
+		transform->transform_module_fn = qcms_transform_module_gamma_table;
+
+		// Prepare Matrix
+		transform = qcms_modular_transform_alloc();
+		if (!transform) 
+			goto fail;
+		append_transform(transform, &next_transform);
+		transform->matrix = build_mAB_matrix(lut);
+		if (transform->matrix.invalid)
+			goto fail;
+		transform->tx = s15Fixed16Number_to_float(lut->e03);
+		transform->ty = s15Fixed16Number_to_float(lut->e13);
+		transform->tz = s15Fixed16Number_to_float(lut->e23);
+		transform->transform_module_fn = qcms_transform_module_matrix_translate;
+	}
+	if (lut->b_curves[0] != NULL) {
+		// Prepare B curve
+		transform = qcms_modular_transform_alloc();
+		if (!transform) 
+			goto fail;
+		append_transform(transform, &next_transform);
+		transform->input_clut_table_r = build_input_gamma_table(lut->b_curves[0]);
+		transform->input_clut_table_g = build_input_gamma_table(lut->b_curves[1]);
+		transform->input_clut_table_b = build_input_gamma_table(lut->b_curves[2]);
+		transform->transform_module_fn = qcms_transform_module_gamma_table;
+	} else {
+		// B curve is mandatory
+		goto fail;
+	}
+
+	if (lut->reversed) {
+		// mBA are identical to mAB except that the transformation order
+		// is reversed
+		first_transform = reverse_transform(first_transform);
+	}
+
+	return first_transform;
+fail:
+	qcms_modular_transform_release(first_transform);
+	return NULL;
+}
+
+static struct qcms_modular_transform* qcms_modular_transform_create_lut(struct lutType *lut)
+{
+	struct qcms_modular_transform *first_transform = NULL;
+	struct qcms_modular_transform **next_transform = &first_transform;
+	struct qcms_modular_transform *transform = NULL;
+
+	size_t in_curve_len, clut_length, out_curve_len;
+	float *in_curves, *clut, *out_curves;
+
+	// Prepare Matrix
+	transform = qcms_modular_transform_alloc();
+	if (!transform) 
+		goto fail;
+	append_transform(transform, &next_transform);
+	transform->matrix = build_lut_matrix(lut);
+	if (transform->matrix.invalid)
+		goto fail;
+	transform->transform_module_fn = qcms_transform_module_matrix;
+
+	// Prepare input curves
+	transform = qcms_modular_transform_alloc();
+	if (!transform) 
+		goto fail;
+	append_transform(transform, &next_transform);
+	in_curve_len = sizeof(float)*lut->num_input_table_entries * 3;
+	in_curves = malloc(in_curve_len);
+	if (!in_curves) 
+		goto fail;
+	memcpy(in_curves, lut->input_table, in_curve_len);
+	transform->input_clut_table_r = in_curves + lut->num_input_table_entries * 0;
+	transform->input_clut_table_g = in_curves + lut->num_input_table_entries * 1;
+	transform->input_clut_table_b = in_curves + lut->num_input_table_entries * 2;
+	transform->input_clut_table_length = lut->num_input_table_entries;
+
+	// Prepare table
+	clut_length = sizeof(float)*pow(lut->num_clut_grid_points, 3)*3;
+	clut = malloc(clut_length);
+	if (!clut) 
+		goto fail;
+	memcpy(clut, lut->clut_table, clut_length);
+	transform->r_clut = clut + 0;
+	transform->g_clut = clut + 1;
+	transform->b_clut = clut + 2;
+	transform->grid_size = lut->num_clut_grid_points;
+
+	// Prepare output curves
+	out_curve_len = sizeof(float) * lut->num_output_table_entries * 3;
+	out_curves = malloc(out_curve_len);
+	if (!out_curves) 
+		goto fail;
+	memcpy(out_curves, lut->output_table, out_curve_len);
+	transform->output_clut_table_r = out_curves + lut->num_output_table_entries * 0;
+	transform->output_clut_table_g = out_curves + lut->num_output_table_entries * 1;
+	transform->output_clut_table_b = out_curves + lut->num_output_table_entries * 2;
+	transform->output_clut_table_length = lut->num_output_table_entries;
+	transform->transform_module_fn = qcms_transform_module_clut;
+
+	return first_transform;
+fail:
+	qcms_modular_transform_release(first_transform);
+	return NULL;
+}
+
+struct qcms_modular_transform* qcms_modular_transform_create_input(qcms_profile *in)
+{
+	struct qcms_modular_transform *first_transform = NULL;
+	struct qcms_modular_transform **next_transform = &first_transform;
+
+	if (in->A2B0) {
+		struct qcms_modular_transform *lut_transform;
+		lut_transform = qcms_modular_transform_create_lut(in->A2B0);
+		if (!lut_transform)
+			goto fail;
+		append_transform(lut_transform, &next_transform);
+	} else if (in->mAB && in->mAB->num_in_channels == 3 && in->mAB->num_out_channels == 3) {
+		struct qcms_modular_transform *mAB_transform;
+		mAB_transform = qcms_modular_transform_create_mAB(in->mAB);
+		if (!mAB_transform)
+			goto fail;
+		append_transform(mAB_transform, &next_transform);
+
+	} else {
+		struct qcms_modular_transform *transform;
+
+		transform = qcms_modular_transform_alloc();
+		if (!transform)
+			goto fail;
+		append_transform(transform, &next_transform);
+		transform->input_clut_table_r = build_input_gamma_table(in->redTRC);
+		transform->input_clut_table_g = build_input_gamma_table(in->greenTRC);
+		transform->input_clut_table_b = build_input_gamma_table(in->blueTRC);
+		transform->transform_module_fn = qcms_transform_module_gamma_table;
+		if (!transform->input_clut_table_r || !transform->input_clut_table_g ||
+				!transform->input_clut_table_b) {
+			goto fail;
+		}
+
+		transform = qcms_modular_transform_alloc();
+		if (!transform) 
+			goto fail;
+		append_transform(transform, &next_transform);
+		transform->matrix.m[0][0] = 1/1.999969482421875f;
+		transform->matrix.m[0][1] = 0.f;
+		transform->matrix.m[0][2] = 0.f;
+		transform->matrix.m[1][0] = 0.f;
+		transform->matrix.m[1][1] = 1/1.999969482421875f;
+		transform->matrix.m[1][2] = 0.f;
+		transform->matrix.m[2][0] = 0.f;
+		transform->matrix.m[2][1] = 0.f;
+		transform->matrix.m[2][2] = 1/1.999969482421875f;
+		transform->matrix.invalid = false;
+		transform->transform_module_fn = qcms_transform_module_matrix;
+
+		transform = qcms_modular_transform_alloc();
+		if (!transform) 
+			goto fail;
+		append_transform(transform, &next_transform);
+		transform->matrix = build_colorant_matrix(in);
+		transform->transform_module_fn = qcms_transform_module_matrix;
+	}
+
+	return first_transform;
+fail:
+	qcms_modular_transform_release(first_transform);
+	return EMPTY_TRANSFORM_LIST;
+}
+static struct qcms_modular_transform* qcms_modular_transform_create_output(qcms_profile *out)
+{
+	struct qcms_modular_transform *first_transform = NULL;
+	struct qcms_modular_transform **next_transform = &first_transform;
+
+	if (out->B2A0) {
+		struct qcms_modular_transform *lut_transform;
+		lut_transform = qcms_modular_transform_create_lut(out->B2A0);
+		if (!lut_transform) 
+			goto fail;
+		append_transform(lut_transform, &next_transform);
+	} else if (out->mBA && out->mBA->num_in_channels == 3 && out->mBA->num_out_channels == 3) {
+		struct qcms_modular_transform *lut_transform;
+		lut_transform = qcms_modular_transform_create_mAB(out->mBA);
+		if (!lut_transform) 
+			goto fail;
+		append_transform(lut_transform, &next_transform);
+	} else if (out->redTRC && out->greenTRC && out->blueTRC) {
+		struct qcms_modular_transform *transform;
+
+		transform = qcms_modular_transform_alloc();
+		if (!transform) 
+			goto fail;
+		append_transform(transform, &next_transform);
+		transform->matrix = matrix_invert(build_colorant_matrix(out));
+		transform->transform_module_fn = qcms_transform_module_matrix;
+
+		transform = qcms_modular_transform_alloc();
+		if (!transform) 
+			goto fail;
+		append_transform(transform, &next_transform);
+		transform->matrix.m[0][0] = 1.999969482421875f;
+		transform->matrix.m[0][1] = 0.f;
+		transform->matrix.m[0][2] = 0.f;
+		transform->matrix.m[1][0] = 0.f;
+		transform->matrix.m[1][1] = 1.999969482421875f;
+		transform->matrix.m[1][2] = 0.f;
+		transform->matrix.m[2][0] = 0.f;
+		transform->matrix.m[2][1] = 0.f;
+		transform->matrix.m[2][2] = 1.999969482421875f;
+		transform->matrix.invalid = false;
+		transform->transform_module_fn = qcms_transform_module_matrix;
+
+		transform = qcms_modular_transform_alloc();
+		if (!transform) 
+			goto fail;
+		append_transform(transform, &next_transform);
+		build_output_lut(out->redTRC, &transform->output_gamma_lut_r,
+			&transform->output_gamma_lut_r_length);
+		build_output_lut(out->greenTRC, &transform->output_gamma_lut_g,
+			&transform->output_gamma_lut_g_length);
+		build_output_lut(out->blueTRC, &transform->output_gamma_lut_b,
+			&transform->output_gamma_lut_b_length);
+		transform->transform_module_fn = qcms_transform_module_gamma_lut;
+
+		if (!transform->output_gamma_lut_r || !transform->output_gamma_lut_g ||
+				!transform->output_gamma_lut_b) {
+			goto fail;
+		}
+	} else {
+		assert(0 && "Unsupported output profile workflow.");
+		return NULL;
+	}
+
+	return first_transform;
+fail:
+	qcms_modular_transform_release(first_transform);
+	return EMPTY_TRANSFORM_LIST;
+}
+
+/* Not Completed
+// Simplify the transformation chain to an equivalent transformation chain
+static struct qcms_modular_transform* qcms_modular_transform_reduce(struct qcms_modular_transform *transform)
+{
+	struct qcms_modular_transform *first_transform = NULL;
+	struct qcms_modular_transform *curr_trans = transform;
+	struct qcms_modular_transform *prev_trans = NULL;
+	while (curr_trans) {
+		struct qcms_modular_transform *next_trans = curr_trans->next_transform;
+		if (curr_trans->transform_module_fn == qcms_transform_module_matrix) {
+			if (next_trans && next_trans->transform_module_fn == qcms_transform_module_matrix) {
+				curr_trans->matrix = matrix_multiply(curr_trans->matrix, next_trans->matrix);
+				goto remove_next;	
+			}
+		}
+		if (curr_trans->transform_module_fn == qcms_transform_module_gamma_table) {
+			bool isLinear = true;
+			uint16_t i;
+			for (i = 0; isLinear && i < 256; i++) {
+				isLinear &= (int)(curr_trans->input_clut_table_r[i] * 255) == i;
+				isLinear &= (int)(curr_trans->input_clut_table_g[i] * 255) == i;
+				isLinear &= (int)(curr_trans->input_clut_table_b[i] * 255) == i;
+			}
+			goto remove_current;
+		}
+		
+next_transform:
+		if (!next_trans) break;
+		prev_trans = curr_trans;
+		curr_trans = next_trans;
+		continue;
+remove_current:
+		if (curr_trans == transform) {
+			//Update head
+			transform = next_trans;
+		} else {
+			prev_trans->next_transform = next_trans;
+		}
+		curr_trans->next_transform = NULL;
+		qcms_modular_transform_release(curr_trans);
+		//return transform;
+		return qcms_modular_transform_reduce(transform);
+remove_next:
+		curr_trans->next_transform = next_trans->next_transform;
+		next_trans->next_transform = NULL;
+		qcms_modular_transform_release(next_trans);
+		continue;
+	}
+	return transform;
+}
+*/
+
+static struct qcms_modular_transform* qcms_modular_transform_create(qcms_profile *in, qcms_profile *out)
+{
+	struct qcms_modular_transform *first_transform = NULL;
+	struct qcms_modular_transform **next_transform = &first_transform;
+
+	if (in->color_space == RGB_SIGNATURE) {
+		struct qcms_modular_transform* rgb_to_pcs;
+		rgb_to_pcs = qcms_modular_transform_create_input(in);
+		if (!rgb_to_pcs) 
+			goto fail;
+		append_transform(rgb_to_pcs, &next_transform);
+	} else {
+		assert(0 && "input color space not supported");
+		goto fail;
+	}
+
+	if (in->pcs == LAB_SIGNATURE && out->pcs == XYZ_SIGNATURE) {
+		struct qcms_modular_transform* lab_to_pcs;
+		lab_to_pcs = qcms_modular_transform_alloc();
+		if (!lab_to_pcs) 
+			goto fail;
+		append_transform(lab_to_pcs, &next_transform);
+		lab_to_pcs->transform_module_fn = qcms_transform_module_LAB_to_XYZ;
+	}
+
+	// This does not improve accuracy in practice, something is wrong here.
+	//if (in->chromaticAdaption.invalid == false) {
+	//	struct qcms_modular_transform* chromaticAdaption;
+	//	chromaticAdaption = qcms_modular_transform_alloc();
+	//	if (!chromaticAdaption) 
+	//		goto fail;
+	//	append_transform(chromaticAdaption, &next_transform);
+	//	chromaticAdaption->matrix = matrix_invert(in->chromaticAdaption);
+	//	chromaticAdaption->transform_module_fn = qcms_transform_module_matrix;
+	//}
+
+        if (in->pcs == XYZ_SIGNATURE && out->pcs == LAB_SIGNATURE) {
+		struct qcms_modular_transform* pcs_to_lab;
+		pcs_to_lab = qcms_modular_transform_alloc();
+		if (!pcs_to_lab) 
+			goto fail;
+		append_transform(pcs_to_lab, &next_transform);
+		pcs_to_lab->transform_module_fn = qcms_transform_module_XYZ_to_LAB;
+	}
+
+	if (out->color_space == RGB_SIGNATURE) {
+		struct qcms_modular_transform* pcs_to_rgb;
+		pcs_to_rgb = qcms_modular_transform_create_output(out);
+		if (!pcs_to_rgb) 
+			goto fail;
+		append_transform(pcs_to_rgb, &next_transform);
+	} else {
+		assert(0 && "output color space not supported");
+		goto fail;
+	}
+	// Not Completed
+	//return qcms_modular_transform_reduce(first_transform);
+	return first_transform;
+fail:
+	qcms_modular_transform_release(first_transform);
+	return EMPTY_TRANSFORM_LIST;
+}
+
+static float* qcms_modular_transform_data(struct qcms_modular_transform *transform, float *src, float *dest, size_t len)
+{
+        while (transform != NULL) {
+                // Keep swaping src/dest when performing a transform to use less memory.
+                float *new_src = dest;
+		const transform_module_fn_t transform_fn = transform->transform_module_fn;
+		if (transform_fn != qcms_transform_module_gamma_table &&
+		    transform_fn != qcms_transform_module_gamma_lut &&
+		    transform_fn != qcms_transform_module_clut &&
+		    transform_fn != qcms_transform_module_clut_only &&
+		    transform_fn != qcms_transform_module_matrix &&
+		    transform_fn != qcms_transform_module_matrix_translate &&
+		    transform_fn != qcms_transform_module_LAB_to_XYZ &&
+		    transform_fn != qcms_transform_module_XYZ_to_LAB) {
+			assert(0 && "Unsupported transform module");
+			return NULL;
+		}
+                transform->transform_module_fn(transform,src,dest,len);
+                dest = src;
+                src = new_src;
+                transform = transform->next_transform;
+        }
+        // The results end up in the src buffer because of the switching
+        return src;
+}
+
+float* qcms_chain_transform(qcms_profile *in, qcms_profile *out, float *src, float *dest, size_t lutSize)
+{
+	struct qcms_modular_transform *transform_list = qcms_modular_transform_create(in, out);
+	if (transform_list != NULL) {
+		float *lut = qcms_modular_transform_data(transform_list, src, dest, lutSize/3);
+		qcms_modular_transform_release(transform_list);
+		return lut;
+	}
+	return NULL;
+}
diff --git a/third_party/qcms/src/chain.h b/third_party/qcms/src/chain.h
new file mode 100644
index 0000000..bdc6c88
--- /dev/null
+++ b/third_party/qcms/src/chain.h
@@ -0,0 +1,30 @@
+/* vim: set ts=8 sw=8 noexpandtab: */
+//  qcms
+//  Copyright (C) 2009 Mozilla Foundation
+//  Copyright (C) 1998-2007 Marti Maria
+//
+// Permission is hereby granted, free of charge, to any person obtaining 
+// a copy of this software and associated documentation files (the "Software"), 
+// to deal in the Software without restriction, including without limitation 
+// the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+// and/or sell copies of the Software, and to permit persons to whom the Software 
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in 
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO 
+// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#ifndef _QCMS_CHAIN_H
+#define _QCMS_CHAIN_H
+
+// Generates and returns a 3D LUT with lutSize^3 samples using the provided src/dest.
+float* qcms_chain_transform(qcms_profile *in, qcms_profile *out, float *src, float *dest, size_t lutSize);
+
+#endif
diff --git a/third_party/qcms/src/iccread.c b/third_party/qcms/src/iccread.c
new file mode 100644
index 0000000..69b7141
--- /dev/null
+++ b/third_party/qcms/src/iccread.c
@@ -0,0 +1,1273 @@
+/* vim: set ts=8 sw=8 noexpandtab: */
+//  qcms
+//  Copyright (C) 2009 Mozilla Foundation
+//  Copyright (C) 1998-2007 Marti Maria
+//
+// Permission is hereby granted, free of charge, to any person obtaining 
+// a copy of this software and associated documentation files (the "Software"), 
+// to deal in the Software without restriction, including without limitation 
+// the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+// and/or sell copies of the Software, and to permit persons to whom the Software 
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in 
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO 
+// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#include <math.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h> //memset
+#include "qcmsint.h"
+
+/* It might be worth having a unified limit on content controlled
+ * allocation per profile. This would remove the need for many
+ * of the arbitrary limits that we used */
+
+typedef uint32_t be32;
+typedef uint16_t be16;
+
+#if 0
+not used yet
+/* __builtin_bswap isn't available in older gccs
+ * so open code it for now */
+static be32 cpu_to_be32(int32_t v)
+{
+#ifdef IS_LITTLE_ENDIAN
+	return ((v & 0xff) << 24) | ((v & 0xff00) << 8) | ((v & 0xff0000) >> 8) | ((v & 0xff000000) >> 24);
+	//return __builtin_bswap32(v);
+	return v;
+#endif
+}
+#endif
+
+static uint32_t be32_to_cpu(be32 v)
+{
+#ifdef IS_LITTLE_ENDIAN
+	return ((v & 0xff) << 24) | ((v & 0xff00) << 8) | ((v & 0xff0000) >> 8) | ((v & 0xff000000) >> 24);
+	//return __builtin_bswap32(v);
+#else
+	return v;
+#endif
+}
+
+static uint16_t be16_to_cpu(be16 v)
+{
+#ifdef IS_LITTLE_ENDIAN
+	return ((v & 0xff) << 8) | ((v & 0xff00) >> 8);
+#else
+	return v;
+#endif
+}
+
+/* a wrapper around the memory that we are going to parse
+ * into a qcms_profile */
+struct mem_source
+{
+	const unsigned char *buf;
+	size_t size;
+	qcms_bool valid;
+	const char *invalid_reason;
+};
+
+static void invalid_source(struct mem_source *mem, const char *reason)
+{
+	mem->valid = false;
+	mem->invalid_reason = reason;
+}
+
+static uint32_t read_u32(struct mem_source *mem, size_t offset)
+{
+	/* Subtract from mem->size instead of the more intuitive adding to offset.
+	 * This avoids overflowing offset. The subtraction is safe because
+	 * mem->size is guaranteed to be > 4 */
+	if (offset > mem->size - 4) {
+		invalid_source(mem, "Invalid offset");
+		return 0;
+	} else {
+		be32 k;
+		memcpy(&k, mem->buf + offset, sizeof(k));
+		return be32_to_cpu(k);
+	}
+}
+
+static uint16_t read_u16(struct mem_source *mem, size_t offset)
+{
+	if (offset > mem->size - 2) {
+		invalid_source(mem, "Invalid offset");
+		return 0;
+	} else {
+		be16 k;
+		memcpy(&k, mem->buf + offset, sizeof(k));
+		return be16_to_cpu(k);
+	}
+}
+
+static uint8_t read_u8(struct mem_source *mem, size_t offset)
+{
+	if (offset > mem->size - 1) {
+		invalid_source(mem, "Invalid offset");
+		return 0;
+	} else {
+		return *(uint8_t*)(mem->buf + offset);
+	}
+}
+
+static s15Fixed16Number read_s15Fixed16Number(struct mem_source *mem, size_t offset)
+{
+	return read_u32(mem, offset);
+}
+
+static uInt8Number read_uInt8Number(struct mem_source *mem, size_t offset)
+{
+	return read_u8(mem, offset);
+}
+
+static uInt16Number read_uInt16Number(struct mem_source *mem, size_t offset)
+{
+	return read_u16(mem, offset);
+}
+
+#define BAD_VALUE_PROFILE NULL
+#define INVALID_PROFILE NULL
+#define NO_MEM_PROFILE NULL
+
+/* An arbitrary 4MB limit on profile size */
+#define MAX_PROFILE_SIZE 1024*1024*4
+#define MAX_TAG_COUNT 1024
+
+static void check_CMM_type_signature(struct mem_source *src)
+{
+	//uint32_t CMM_type_signature = read_u32(src, 4);
+	//TODO: do the check?
+
+}
+
+static void check_profile_version(struct mem_source *src)
+{
+
+	/*
+	uint8_t major_revision = read_u8(src, 8 + 0);
+	uint8_t minor_revision = read_u8(src, 8 + 1);
+	*/
+	uint8_t reserved1      = read_u8(src, 8 + 2);
+	uint8_t reserved2      = read_u8(src, 8 + 3);
+	/* Checking the version doesn't buy us anything
+	if (major_revision != 0x4) {
+		if (major_revision > 0x2)
+			invalid_source(src, "Unsupported major revision");
+		if (minor_revision > 0x40)
+			invalid_source(src, "Unsupported minor revision");
+	}
+	*/
+	if (reserved1 != 0 || reserved2 != 0)
+		invalid_source(src, "Invalid reserved bytes");
+}
+
+#define INPUT_DEVICE_PROFILE   0x73636e72 // 'scnr'
+#define DISPLAY_DEVICE_PROFILE 0x6d6e7472 // 'mntr'
+#define OUTPUT_DEVICE_PROFILE  0x70727472 // 'prtr'
+#define DEVICE_LINK_PROFILE    0x6c696e6b // 'link'
+#define COLOR_SPACE_PROFILE    0x73706163 // 'spac'
+#define ABSTRACT_PROFILE       0x61627374 // 'abst'
+#define NAMED_COLOR_PROFILE    0x6e6d636c // 'nmcl'
+
+static void read_class_signature(qcms_profile *profile, struct mem_source *mem)
+{
+	profile->class = read_u32(mem, 12);
+	switch (profile->class) {
+		case DISPLAY_DEVICE_PROFILE:
+		case INPUT_DEVICE_PROFILE:
+		case OUTPUT_DEVICE_PROFILE:
+		case COLOR_SPACE_PROFILE:
+			break;
+		default:
+			invalid_source(mem, "Invalid  Profile/Device Class signature");
+	}
+}
+
+static void read_color_space(qcms_profile *profile, struct mem_source *mem)
+{
+	profile->color_space = read_u32(mem, 16);
+	switch (profile->color_space) {
+		case RGB_SIGNATURE:
+		case GRAY_SIGNATURE:
+			break;
+		default:
+			invalid_source(mem, "Unsupported colorspace");
+	}
+}
+
+static void read_pcs(qcms_profile *profile, struct mem_source *mem)
+{
+	profile->pcs = read_u32(mem, 20);
+	switch (profile->pcs) {
+		case XYZ_SIGNATURE:
+		case LAB_SIGNATURE:
+			break;
+		default:
+			invalid_source(mem, "Unsupported pcs");
+	}
+}
+
+struct tag
+{
+	uint32_t signature;
+	uint32_t offset;
+	uint32_t size;
+};
+
+struct tag_index {
+	uint32_t count;
+	struct tag *tags;
+};
+
+static struct tag_index read_tag_table(qcms_profile *profile, struct mem_source *mem)
+{
+	struct tag_index index = {0, NULL};
+	unsigned int i;
+
+	index.count = read_u32(mem, 128);
+	if (index.count > MAX_TAG_COUNT) {
+		invalid_source(mem, "max number of tags exceeded");
+		return index;
+	}
+
+	index.tags = malloc(sizeof(struct tag)*index.count);
+	if (index.tags) {
+		for (i = 0; i < index.count; i++) {
+			index.tags[i].signature = read_u32(mem, 128 + 4 + 4*i*3);
+			index.tags[i].offset    = read_u32(mem, 128 + 4 + 4*i*3 + 4);
+			index.tags[i].size      = read_u32(mem, 128 + 4 + 4*i*3 + 8);
+		}
+	}
+
+	return index;
+}
+
+// Checks a profile for obvious inconsistencies and returns
+// true if the profile looks bogus and should probably be
+// ignored.
+qcms_bool qcms_profile_is_bogus(qcms_profile *profile)
+{
+       float sum[3], target[3], tolerance[3];
+       float rX, rY, rZ, gX, gY, gZ, bX, bY, bZ;
+       bool negative;
+       unsigned i;
+
+       // We currently only check the bogosity of RGB profiles
+       if (profile->color_space != RGB_SIGNATURE)
+	       return false;
+
+       if (qcms_supports_iccv4 && (profile->A2B0 || profile->B2A0))
+               return false;
+
+       rX = s15Fixed16Number_to_float(profile->redColorant.X);
+       rY = s15Fixed16Number_to_float(profile->redColorant.Y);
+       rZ = s15Fixed16Number_to_float(profile->redColorant.Z);
+
+       gX = s15Fixed16Number_to_float(profile->greenColorant.X);
+       gY = s15Fixed16Number_to_float(profile->greenColorant.Y);
+       gZ = s15Fixed16Number_to_float(profile->greenColorant.Z);
+
+       bX = s15Fixed16Number_to_float(profile->blueColorant.X);
+       bY = s15Fixed16Number_to_float(profile->blueColorant.Y);
+       bZ = s15Fixed16Number_to_float(profile->blueColorant.Z);
+
+       // Check if any of the XYZ values are negative (see mozilla bug 498245)
+       // CIEXYZ tristimulus values cannot be negative according to the spec.
+       negative =
+	       (rX < 0) || (rY < 0) || (rZ < 0) ||
+	       (gX < 0) || (gY < 0) || (gZ < 0) ||
+	       (bX < 0) || (bY < 0) || (bZ < 0);
+
+       if (negative)
+	       return true;
+
+
+       // Sum the values; they should add up to something close to white
+       sum[0] = rX + gX + bX;
+       sum[1] = rY + gY + bY;
+       sum[2] = rZ + gZ + bZ;
+
+#if defined (_MSC_VER)
+#pragma warning(push)
+/* Disable double to float truncation warning 4305 */
+#pragma warning(disable:4305)
+#endif
+       // Build our target vector (see mozilla bug 460629)
+       target[0] = 0.96420;
+       target[1] = 1.00000;
+       target[2] = 0.82491;
+
+       // Our tolerance vector - Recommended by Chris Murphy based on
+       // conversion from the LAB space criterion of no more than 3 in any one
+       // channel. This is similar to, but slightly more tolerant than Adobe's
+       // criterion.
+       tolerance[0] = 0.02;
+       tolerance[1] = 0.02;
+       tolerance[2] = 0.04;
+
+#if defined (_MSC_VER)
+/* Restore warnings */
+#pragma warning(pop)
+#endif
+       // Compare with our tolerance
+       for (i = 0; i < 3; ++i) {
+           if (!(((sum[i] - tolerance[i]) <= target[i]) &&
+                 ((sum[i] + tolerance[i]) >= target[i])))
+               return true;
+       }
+
+       // All Good
+       return false;
+}
+
+#define TAG_bXYZ 0x6258595a
+#define TAG_gXYZ 0x6758595a
+#define TAG_rXYZ 0x7258595a
+#define TAG_rTRC 0x72545243
+#define TAG_bTRC 0x62545243
+#define TAG_gTRC 0x67545243
+#define TAG_kTRC 0x6b545243
+#define TAG_A2B0 0x41324230
+#define TAG_B2A0 0x42324130
+#define TAG_CHAD 0x63686164
+#define TAG_desc 0x64657363
+
+static struct tag *find_tag(struct tag_index index, uint32_t tag_id)
+{
+	unsigned int i;
+	struct tag *tag = NULL;
+	for (i = 0; i < index.count; i++) {
+		if (index.tags[i].signature == tag_id) {
+			return &index.tags[i];
+		}
+	}
+	return tag;
+}
+
+#define DESC_TYPE 0x64657363 // 'desc'
+#define MLUC_TYPE 0x6d6c7563 // 'mluc'
+
+static bool read_tag_descType(qcms_profile *profile, struct mem_source *src, struct tag_index index, uint32_t tag_id)
+{
+	struct tag *tag = find_tag(index, tag_id);
+	if (tag) {
+		const uint32_t limit = sizeof profile->description;
+		uint32_t offset = tag->offset;
+		uint32_t type = read_u32(src, offset);
+		uint32_t length = read_u32(src, offset+8);
+		uint32_t i, description;
+		if (length && type == MLUC_TYPE) {
+			length = read_u32(src, offset+20);
+			if (!length || (length & 1) || (read_u32(src, offset+12) != 12))
+				goto invalid_desc_tag;
+			description = offset + read_u32(src, offset+24);
+			if (!src->valid)
+				goto invalid_desc_tag;
+		} else if (length && type == DESC_TYPE) {
+			description = offset + 12;
+		} else {
+			goto invalid_desc_tag;
+		}
+		if (length >= limit)
+			length = limit - 1;
+		for (i = 0; i < length; ++i)
+			profile->description[i] = read_u8(src, description+i);
+		profile->description[length] = 0;
+	} else {
+		goto invalid_desc_tag;
+	}
+
+	if (src->valid)
+		return true;
+
+invalid_desc_tag:
+	invalid_source(src, "invalid description");
+	return false;
+}
+
+#define XYZ_TYPE		0x58595a20 // 'XYZ '
+#define CURVE_TYPE		0x63757276 // 'curv'
+#define PARAMETRIC_CURVE_TYPE	0x70617261 // 'para'
+#define LUT16_TYPE		0x6d667432 // 'mft2'
+#define LUT8_TYPE		0x6d667431 // 'mft1'
+#define LUT_MAB_TYPE		0x6d414220 // 'mAB '
+#define LUT_MBA_TYPE		0x6d424120 // 'mBA '
+#define CHROMATIC_TYPE		0x73663332 // 'sf32'
+
+static struct matrix read_tag_s15Fixed16ArrayType(struct mem_source *src, struct tag_index index, uint32_t tag_id)
+{
+	struct tag *tag = find_tag(index, tag_id);
+	struct matrix matrix;
+	if (tag) {
+		uint8_t i;
+		uint32_t offset = tag->offset;
+		uint32_t type = read_u32(src, offset);
+
+		// Check mandatory type signature for s16Fixed16ArrayType
+		if (type != CHROMATIC_TYPE) {
+			invalid_source(src, "unexpected type, expected 'sf32'");
+		}
+
+		for (i = 0; i < 9; i++) {
+			matrix.m[i/3][i%3] = s15Fixed16Number_to_float(read_s15Fixed16Number(src, offset+8+i*4));
+		}
+		matrix.invalid = false;
+	} else {
+		matrix.invalid = true;
+		invalid_source(src, "missing sf32tag");
+	}
+	return matrix;
+}
+
+static struct XYZNumber read_tag_XYZType(struct mem_source *src, struct tag_index index, uint32_t tag_id)
+{
+	struct XYZNumber num = {0, 0, 0};
+	struct tag *tag = find_tag(index, tag_id);
+	if (tag) {
+		uint32_t offset = tag->offset;
+
+		uint32_t type = read_u32(src, offset);
+		if (type != XYZ_TYPE)
+			invalid_source(src, "unexpected type, expected XYZ");
+		num.X = read_s15Fixed16Number(src, offset+8);
+		num.Y = read_s15Fixed16Number(src, offset+12);
+		num.Z = read_s15Fixed16Number(src, offset+16);
+	} else {
+		invalid_source(src, "missing xyztag");
+	}
+	return num;
+}
+
+// Read the tag at a given offset rather then the tag_index. 
+// This method is used when reading mAB tags where nested curveType are
+// present that are not part of the tag_index.
+static struct curveType *read_curveType(struct mem_source *src, uint32_t offset, uint32_t *len)
+{
+	static const uint32_t COUNT_TO_LENGTH[5] = {1, 3, 4, 5, 7};
+	struct curveType *curve = NULL;
+	uint32_t type = read_u32(src, offset);
+	uint32_t count;
+	int i;
+
+	if (type != CURVE_TYPE && type != PARAMETRIC_CURVE_TYPE) {
+		invalid_source(src, "unexpected type, expected CURV or PARA");
+		return NULL;
+	}
+
+	if (type == CURVE_TYPE) {
+		count = read_u32(src, offset+8);
+
+#define MAX_CURVE_ENTRIES 40000 //arbitrary
+		if (count > MAX_CURVE_ENTRIES) {
+			invalid_source(src, "curve size too large");
+			return NULL;
+		}
+		curve = malloc(sizeof(struct curveType) + sizeof(uInt16Number)*count);
+		if (!curve)
+			return NULL;
+
+		curve->count = count;
+		curve->type = type;
+
+		for (i=0; i<count; i++) {
+			curve->data[i] = read_u16(src, offset + 12 + i*2);
+		}
+		*len = 12 + count * 2;
+	} else { //PARAMETRIC_CURVE_TYPE
+		count = read_u16(src, offset+8);
+
+		if (count > 4) {
+			invalid_source(src, "parametric function type not supported.");
+			return NULL;
+		}
+
+		curve = malloc(sizeof(struct curveType));
+		if (!curve)
+			return NULL;
+
+		curve->count = count;
+		curve->type = type;
+
+		for (i=0; i < COUNT_TO_LENGTH[count]; i++) {
+			curve->parameter[i] = s15Fixed16Number_to_float(read_s15Fixed16Number(src, offset + 12 + i*4));	
+		}
+		*len = 12 + COUNT_TO_LENGTH[count] * 4;
+
+		if ((count == 1 || count == 2)) {
+			/* we have a type 1 or type 2 function that has a division by 'a' */
+			float a = curve->parameter[1];
+			if (a == 0.f)
+				invalid_source(src, "parametricCurve definition causes division by zero.");
+		}
+	}
+
+	return curve;
+}
+
+static struct curveType *read_tag_curveType(struct mem_source *src, struct tag_index index, uint32_t tag_id)
+{
+	struct tag *tag = find_tag(index, tag_id);
+	struct curveType *curve = NULL;
+	if (tag) {
+		uint32_t len;
+		return read_curveType(src, tag->offset, &len);
+	} else {
+		invalid_source(src, "missing curvetag");
+	}
+
+	return curve;
+}
+
+#define MAX_CLUT_SIZE 500000 // arbitrary
+#define MAX_CHANNELS 10 // arbitrary
+static void read_nested_curveType(struct mem_source *src, struct curveType *(*curveArray)[MAX_CHANNELS], uint8_t num_channels, uint32_t curve_offset)
+{
+	uint32_t channel_offset = 0;
+	int i;
+	for (i = 0; i < num_channels; i++) {
+		uint32_t tag_len = ~0;
+
+		(*curveArray)[i] = read_curveType(src, curve_offset + channel_offset, &tag_len);
+		if (!(*curveArray)[i]) {
+			invalid_source(src, "invalid nested curveType curve");
+		}
+
+		if (tag_len == ~0) {
+			invalid_source(src, "invalid nested curveType tag length");
+			return;
+		}
+
+		channel_offset += tag_len;
+		// 4 byte aligned
+		if ((tag_len % 4) != 0)
+			channel_offset += 4 - (tag_len % 4);
+	}
+}
+
+static void mAB_release(struct lutmABType *lut)
+{
+	uint8_t i;
+
+	for (i = 0; i < lut->num_in_channels; i++){
+		free(lut->a_curves[i]);
+	}
+	for (i = 0; i < lut->num_out_channels; i++){
+		free(lut->b_curves[i]);
+		free(lut->m_curves[i]);
+	}
+	free(lut);
+}
+
+/* See section 10.10 for specs */
+static struct lutmABType *read_tag_lutmABType(struct mem_source *src, struct tag_index index, uint32_t tag_id)
+{
+	struct tag *tag = find_tag(index, tag_id);
+	uint32_t offset = tag->offset;
+	uint32_t a_curve_offset, b_curve_offset, m_curve_offset;
+	uint32_t matrix_offset;
+	uint32_t clut_offset;
+	uint32_t clut_size = 1;
+	uint8_t clut_precision;
+	uint32_t type = read_u32(src, offset);
+	uint8_t num_in_channels, num_out_channels;
+	struct lutmABType *lut;
+	int i;
+
+	if (type != LUT_MAB_TYPE && type != LUT_MBA_TYPE) {
+		return NULL;
+	}
+
+	num_in_channels = read_u8(src, offset + 8);
+	num_out_channels = read_u8(src, offset + 8);
+	if (num_in_channels > MAX_CHANNELS || num_out_channels > MAX_CHANNELS)
+		return NULL;
+
+	// We require 3in/out channels since we only support RGB->XYZ (or RGB->LAB)
+	// XXX: If we remove this restriction make sure that the number of channels
+	//      is less or equal to the maximum number of mAB curves in qcmsint.h
+	//      also check for clut_size overflow.
+	if (num_in_channels != 3 || num_out_channels != 3)
+		return NULL;
+
+	// some of this data is optional and is denoted by a zero offset
+	// we also use this to track their existance
+	a_curve_offset = read_u32(src, offset + 28);
+	clut_offset = read_u32(src, offset + 24);
+	m_curve_offset = read_u32(src, offset + 20);
+	matrix_offset = read_u32(src, offset + 16);
+	b_curve_offset = read_u32(src, offset + 12);
+
+	// Convert offsets relative to the tag to relative to the profile
+	// preserve zero for optional fields
+	if (a_curve_offset)
+		a_curve_offset += offset;
+	if (clut_offset)
+		clut_offset += offset;
+	if (m_curve_offset)
+		m_curve_offset += offset;
+	if (matrix_offset)
+		matrix_offset += offset;
+	if (b_curve_offset)
+		b_curve_offset += offset;
+
+	if (clut_offset) {
+		assert (num_in_channels == 3);
+		// clut_size can not overflow since lg(256^num_in_channels) = 24 bits.
+		for (i = 0; i < num_in_channels; i++) {
+			clut_size *= read_u8(src, clut_offset + i);
+		}
+	} else {
+		clut_size = 0;
+	}
+
+	// 24bits * 3 won't overflow either
+	clut_size = clut_size * num_out_channels;
+
+	if (clut_size > MAX_CLUT_SIZE)
+		return NULL;
+
+	lut = malloc(sizeof(struct lutmABType) + (clut_size) * sizeof(float));
+	if (!lut)
+		return NULL;
+	// we'll fill in the rest below
+	memset(lut, 0, sizeof(struct lutmABType));
+	lut->clut_table   = &lut->clut_table_data[0];
+
+	for (i = 0; i < num_in_channels; i++) {
+		lut->num_grid_points[i] = read_u8(src, clut_offset + i);
+	}
+
+	// Reverse the processing of transformation elements for mBA type.
+	lut->reversed = (type == LUT_MBA_TYPE);
+
+	lut->num_in_channels = num_in_channels;
+	lut->num_out_channels = num_out_channels;
+
+	if (matrix_offset) {
+		// read the matrix if we have it
+		lut->e00 = read_s15Fixed16Number(src, matrix_offset+4*0);
+		lut->e01 = read_s15Fixed16Number(src, matrix_offset+4*1);
+		lut->e02 = read_s15Fixed16Number(src, matrix_offset+4*2);
+		lut->e10 = read_s15Fixed16Number(src, matrix_offset+4*3);
+		lut->e11 = read_s15Fixed16Number(src, matrix_offset+4*4);
+		lut->e12 = read_s15Fixed16Number(src, matrix_offset+4*5);
+		lut->e20 = read_s15Fixed16Number(src, matrix_offset+4*6);
+		lut->e21 = read_s15Fixed16Number(src, matrix_offset+4*7);
+		lut->e22 = read_s15Fixed16Number(src, matrix_offset+4*8);
+		lut->e03 = read_s15Fixed16Number(src, matrix_offset+4*9);
+		lut->e13 = read_s15Fixed16Number(src, matrix_offset+4*10);
+		lut->e23 = read_s15Fixed16Number(src, matrix_offset+4*11);
+	}
+
+	if (a_curve_offset) {
+		read_nested_curveType(src, &lut->a_curves, num_in_channels, a_curve_offset);
+	}
+	if (m_curve_offset) {
+		read_nested_curveType(src, &lut->m_curves, num_out_channels, m_curve_offset);
+	}
+	if (b_curve_offset) {
+		read_nested_curveType(src, &lut->b_curves, num_out_channels, b_curve_offset);
+	} else {
+		invalid_source(src, "B curves required");
+	}
+
+	if (clut_offset) {
+		clut_precision = read_u8(src, clut_offset + 16);
+		if (clut_precision == 1) {
+			for (i = 0; i < clut_size; i++) {
+				lut->clut_table[i] = uInt8Number_to_float(read_uInt8Number(src, clut_offset + 20 + i*1));
+			}
+		} else if (clut_precision == 2) {
+			for (i = 0; i < clut_size; i++) {
+				lut->clut_table[i] = uInt16Number_to_float(read_uInt16Number(src, clut_offset + 20 + i*2));
+			}
+		} else {
+			invalid_source(src, "Invalid clut precision");
+		}
+	}
+
+	if (!src->valid) {
+		mAB_release(lut);
+		return NULL;
+	}
+
+	return lut;
+}
+
+static struct lutType *read_tag_lutType(struct mem_source *src, struct tag_index index, uint32_t tag_id)
+{
+	struct tag *tag = find_tag(index, tag_id);
+	uint32_t offset = tag->offset;
+	uint32_t type = read_u32(src, offset);
+	uint16_t num_input_table_entries;
+	uint16_t num_output_table_entries;
+	uint8_t in_chan, grid_points, out_chan;
+	size_t clut_offset, output_offset;
+	uint32_t clut_size;
+	size_t entry_size;
+	struct lutType *lut;
+	int i;
+
+	/* I'm not sure why the spec specifies a fixed number of entries for LUT8 tables even though
+	 * they have room for the num_entries fields */
+	if (type == LUT8_TYPE) {
+		num_input_table_entries = 256;
+		num_output_table_entries = 256;
+		entry_size = 1;
+	} else if (type == LUT16_TYPE) {
+		num_input_table_entries  = read_u16(src, offset + 48);
+		num_output_table_entries = read_u16(src, offset + 50);
+		entry_size = 2;
+	} else {
+		assert(0); // the caller checks that this doesn't happen
+		invalid_source(src, "Unexpected lut type");
+		return NULL;
+	}
+
+	in_chan     = read_u8(src, offset + 8);
+	out_chan    = read_u8(src, offset + 9);
+	grid_points = read_u8(src, offset + 10);
+
+	clut_size = pow(grid_points, in_chan);
+	if (clut_size > MAX_CLUT_SIZE) {
+		return NULL;
+	}
+
+	if (in_chan != 3 || out_chan != 3) {
+		return NULL;
+	}
+
+	lut = malloc(sizeof(struct lutType) + (num_input_table_entries * in_chan + clut_size*out_chan + num_output_table_entries * out_chan)*sizeof(float));
+	if (!lut) {
+		return NULL;
+	}
+
+	/* compute the offsets of tables */
+	lut->input_table  = &lut->table_data[0];
+	lut->clut_table   = &lut->table_data[in_chan*num_input_table_entries];
+	lut->output_table = &lut->table_data[in_chan*num_input_table_entries + clut_size*out_chan];
+
+	lut->num_input_table_entries  = num_input_table_entries;
+	lut->num_output_table_entries = num_output_table_entries;
+	lut->num_input_channels   = read_u8(src, offset + 8);
+	lut->num_output_channels  = read_u8(src, offset + 9);
+	lut->num_clut_grid_points = read_u8(src, offset + 10);
+	lut->e00 = read_s15Fixed16Number(src, offset+12);
+	lut->e01 = read_s15Fixed16Number(src, offset+16);
+	lut->e02 = read_s15Fixed16Number(src, offset+20);
+	lut->e10 = read_s15Fixed16Number(src, offset+24);
+	lut->e11 = read_s15Fixed16Number(src, offset+28);
+	lut->e12 = read_s15Fixed16Number(src, offset+32);
+	lut->e20 = read_s15Fixed16Number(src, offset+36);
+	lut->e21 = read_s15Fixed16Number(src, offset+40);
+	lut->e22 = read_s15Fixed16Number(src, offset+44);
+
+	for (i = 0; i < lut->num_input_table_entries * in_chan; i++) {
+		if (type == LUT8_TYPE) {
+			lut->input_table[i] = uInt8Number_to_float(read_uInt8Number(src, offset + 52 + i * entry_size));
+		} else {
+			lut->input_table[i] = uInt16Number_to_float(read_uInt16Number(src, offset + 52 + i * entry_size));
+		}
+	}
+
+	clut_offset = offset + 52 + lut->num_input_table_entries * in_chan * entry_size;
+	for (i = 0; i < clut_size * out_chan; i+=3) {
+		if (type == LUT8_TYPE) {
+			lut->clut_table[i+0] = uInt8Number_to_float(read_uInt8Number(src, clut_offset + i*entry_size + 0));
+			lut->clut_table[i+1] = uInt8Number_to_float(read_uInt8Number(src, clut_offset + i*entry_size + 1));
+			lut->clut_table[i+2] = uInt8Number_to_float(read_uInt8Number(src, clut_offset + i*entry_size + 2));
+		} else {
+			lut->clut_table[i+0] = uInt16Number_to_float(read_uInt16Number(src, clut_offset + i*entry_size + 0));
+			lut->clut_table[i+1] = uInt16Number_to_float(read_uInt16Number(src, clut_offset + i*entry_size + 2));
+			lut->clut_table[i+2] = uInt16Number_to_float(read_uInt16Number(src, clut_offset + i*entry_size + 4));
+		}
+	}
+
+	output_offset = clut_offset + clut_size * out_chan * entry_size;
+	for (i = 0; i < lut->num_output_table_entries * out_chan; i++) {
+		if (type == LUT8_TYPE) {
+			lut->output_table[i] = uInt8Number_to_float(read_uInt8Number(src, output_offset + i*entry_size));
+		} else {
+			lut->output_table[i] = uInt16Number_to_float(read_uInt16Number(src, output_offset + i*entry_size));
+		}
+	}
+
+	return lut;
+}
+
+static void read_rendering_intent(qcms_profile *profile, struct mem_source *src)
+{
+	profile->rendering_intent = read_u32(src, 64);
+	switch (profile->rendering_intent) {
+		case QCMS_INTENT_PERCEPTUAL:
+		case QCMS_INTENT_SATURATION:
+		case QCMS_INTENT_RELATIVE_COLORIMETRIC:
+		case QCMS_INTENT_ABSOLUTE_COLORIMETRIC:
+			break;
+		default:
+			invalid_source(src, "unknown rendering intent");
+	}
+}
+
+qcms_profile *qcms_profile_create(void)
+{
+	return calloc(sizeof(qcms_profile), 1);
+}
+
+
+
+/* build sRGB gamma table */
+/* based on cmsBuildParametricGamma() */
+static uint16_t *build_sRGB_gamma_table(int num_entries)
+{
+	int i;
+	/* taken from lcms: Build_sRGBGamma() */
+	double gamma = 2.4;
+	double a = 1./1.055;
+	double b = 0.055/1.055;
+	double c = 1./12.92;
+	double d = 0.04045;
+
+	uint16_t *table = malloc(sizeof(uint16_t) * num_entries);
+	if (!table)
+		return NULL;
+
+	for (i=0; i<num_entries; i++) {
+		double x = (double)i / (num_entries-1);
+		double y, output;
+		// IEC 61966-2.1 (sRGB)
+		// Y = (aX + b)^Gamma | X >= d
+		// Y = cX             | X < d
+		if (x >= d) {
+			double e = (a*x + b);
+			if (e > 0)
+				y = pow(e, gamma);
+			else
+				y = 0;
+		} else {
+			y = c*x;
+		}
+
+		// Saturate -- this could likely move to a separate function
+		output = y * 65535. + .5;
+		if (output > 65535.)
+			output = 65535;
+		if (output < 0)
+			output = 0;
+		table[i] = (uint16_t)floor(output);
+	}
+	return table;
+}
+
+static struct curveType *curve_from_table(uint16_t *table, int num_entries)
+{
+	struct curveType *curve;
+	int i;
+	curve = malloc(sizeof(struct curveType) + sizeof(uInt16Number)*num_entries);
+	if (!curve)
+		return NULL;
+	curve->type = CURVE_TYPE;
+	curve->count = num_entries;
+	for (i = 0; i < num_entries; i++) {
+		curve->data[i] = table[i];
+	}
+	return curve;
+}
+
+static uint16_t float_to_u8Fixed8Number(float a)
+{
+	if (a > (255.f + 255.f/256))
+		return 0xffff;
+	else if (a < 0.f)
+		return 0;
+	else
+		return floor(a*256.f + .5f);
+}
+
+static struct curveType *curve_from_gamma(float gamma)
+{
+	struct curveType *curve;
+	int num_entries = 1;
+	curve = malloc(sizeof(struct curveType) + sizeof(uInt16Number)*num_entries);
+	if (!curve)
+		return NULL;
+	curve->count = num_entries;
+	curve->data[0] = float_to_u8Fixed8Number(gamma);
+	return curve;
+}
+
+
+//XXX: it would be nice if we had a way of ensuring
+// everything in a profile was initialized regardless of how it was created
+
+//XXX: should this also be taking a black_point?
+/* similar to CGColorSpaceCreateCalibratedRGB */
+qcms_profile* qcms_profile_create_rgb_with_gamma(
+		qcms_CIE_xyY white_point,
+		qcms_CIE_xyYTRIPLE primaries,
+		float gamma)
+{
+	qcms_profile* profile = qcms_profile_create();
+	if (!profile)
+		return NO_MEM_PROFILE;
+
+	//XXX: should store the whitepoint
+	if (!set_rgb_colorants(profile, white_point, primaries)) {
+		qcms_profile_release(profile);
+		return INVALID_PROFILE;
+	}
+
+	profile->redTRC = curve_from_gamma(gamma);
+	profile->blueTRC = curve_from_gamma(gamma);
+	profile->greenTRC = curve_from_gamma(gamma);
+
+	if (!profile->redTRC || !profile->blueTRC || !profile->greenTRC) {
+		qcms_profile_release(profile);
+		return NO_MEM_PROFILE;
+	}
+	profile->class = DISPLAY_DEVICE_PROFILE;
+	profile->rendering_intent = QCMS_INTENT_PERCEPTUAL;
+	profile->color_space = RGB_SIGNATURE;
+	return profile;
+}
+
+qcms_profile* qcms_profile_create_rgb_with_table(
+		qcms_CIE_xyY white_point,
+		qcms_CIE_xyYTRIPLE primaries,
+		uint16_t *table, int num_entries)
+{
+	qcms_profile* profile = qcms_profile_create();
+	if (!profile)
+		return NO_MEM_PROFILE;
+
+	//XXX: should store the whitepoint
+	if (!set_rgb_colorants(profile, white_point, primaries)) {
+		qcms_profile_release(profile);
+		return INVALID_PROFILE;
+	}
+
+	profile->redTRC = curve_from_table(table, num_entries);
+	profile->blueTRC = curve_from_table(table, num_entries);
+	profile->greenTRC = curve_from_table(table, num_entries);
+
+	if (!profile->redTRC || !profile->blueTRC || !profile->greenTRC) {
+		qcms_profile_release(profile);
+		return NO_MEM_PROFILE;
+	}
+	profile->class = DISPLAY_DEVICE_PROFILE;
+	profile->rendering_intent = QCMS_INTENT_PERCEPTUAL;
+	profile->color_space = RGB_SIGNATURE;
+	return profile;
+}
+
+/* from lcms: cmsWhitePointFromTemp */
+/* tempK must be >= 4000. and <= 25000.
+ * similar to argyll: icx_DTEMP2XYZ() */
+static qcms_CIE_xyY white_point_from_temp(int temp_K)
+{
+	qcms_CIE_xyY white_point;
+	double x, y;
+	double T, T2, T3;
+	// double M1, M2;
+
+	// No optimization provided.
+	T = temp_K;
+	T2 = T*T;            // Square
+	T3 = T2*T;           // Cube
+
+	// For correlated color temperature (T) between 4000K and 7000K:
+	if (T >= 4000. && T <= 7000.) {
+		x = -4.6070*(1E9/T3) + 2.9678*(1E6/T2) + 0.09911*(1E3/T) + 0.244063;
+	} else {
+		// or for correlated color temperature (T) between 7000K and 25000K:
+		if (T > 7000.0 && T <= 25000.0) {
+			x = -2.0064*(1E9/T3) + 1.9018*(1E6/T2) + 0.24748*(1E3/T) + 0.237040;
+		} else {
+			assert(0 && "invalid temp");
+		}
+	}
+
+	// Obtain y(x)
+
+	y = -3.000*(x*x) + 2.870*x - 0.275;
+
+	// wave factors (not used, but here for futures extensions)
+
+	// M1 = (-1.3515 - 1.7703*x + 5.9114 *y)/(0.0241 + 0.2562*x - 0.7341*y);
+	// M2 = (0.0300 - 31.4424*x + 30.0717*y)/(0.0241 + 0.2562*x - 0.7341*y);
+
+	// Fill white_point struct
+	white_point.x = x;
+	white_point.y = y;
+	white_point.Y = 1.0;
+
+	return white_point;
+}
+
+qcms_profile* qcms_profile_sRGB(void)
+{
+	qcms_profile *profile;
+	uint16_t *table;
+
+	qcms_CIE_xyYTRIPLE Rec709Primaries = {
+		{0.6400, 0.3300, 1.0},
+		{0.3000, 0.6000, 1.0},
+		{0.1500, 0.0600, 1.0}
+	};
+	qcms_CIE_xyY D65;
+
+	D65 = white_point_from_temp(6504);
+
+	table = build_sRGB_gamma_table(1024);
+
+	if (!table)
+		return NO_MEM_PROFILE;
+
+	profile = qcms_profile_create_rgb_with_table(D65, Rec709Primaries, table, 1024);
+	if (profile)
+		strcpy(profile->description, "sRGB IEC61966-2.1");
+
+	free(table);
+	return profile;
+}
+
+
+/* qcms_profile_from_memory does not hold a reference to the memory passed in */
+qcms_profile* qcms_profile_from_memory(const void *mem, size_t size)
+{
+	uint32_t length;
+	struct mem_source source;
+	struct mem_source *src = &source;
+	struct tag_index index;
+	qcms_profile *profile;
+
+	source.buf = mem;
+	source.size = size;
+	source.valid = true;
+
+	if (size < 4)
+		return INVALID_PROFILE;
+
+	length = read_u32(src, 0);
+	if (length <= size) {
+		// shrink the area that we can read if appropriate
+		source.size = length;
+	} else {
+		return INVALID_PROFILE;
+	}
+
+	/* ensure that the profile size is sane so it's easier to reason about */
+	if (source.size <= 64 || source.size >= MAX_PROFILE_SIZE)
+		return INVALID_PROFILE;
+
+	profile = qcms_profile_create();
+	if (!profile)
+		return NO_MEM_PROFILE;
+
+	check_CMM_type_signature(src);
+	check_profile_version(src);
+	read_class_signature(profile, src);
+	read_rendering_intent(profile, src);
+	read_color_space(profile, src);
+	read_pcs(profile, src);
+	//TODO read rest of profile stuff
+
+	if (!src->valid)
+		goto invalid_profile;
+
+	index = read_tag_table(profile, src);
+	if (!src->valid || !index.tags)
+		goto invalid_tag_table;
+
+	if (!read_tag_descType(profile, src, index, TAG_desc))
+		goto invalid_tag_table;
+
+	if (find_tag(index, TAG_CHAD)) {
+		profile->chromaticAdaption = read_tag_s15Fixed16ArrayType(src, index, TAG_CHAD);
+	} else {
+		profile->chromaticAdaption.invalid = true; //Signal the data is not present
+	}
+
+	if (profile->class == DISPLAY_DEVICE_PROFILE || profile->class == INPUT_DEVICE_PROFILE ||
+            profile->class == OUTPUT_DEVICE_PROFILE  || profile->class == COLOR_SPACE_PROFILE) {
+		if (profile->color_space == RGB_SIGNATURE) {
+			if (find_tag(index, TAG_A2B0)) {
+				if (read_u32(src, find_tag(index, TAG_A2B0)->offset) == LUT8_TYPE ||
+				    read_u32(src, find_tag(index, TAG_A2B0)->offset) == LUT16_TYPE) {
+					profile->A2B0 = read_tag_lutType(src, index, TAG_A2B0);
+				} else if (read_u32(src, find_tag(index, TAG_A2B0)->offset) == LUT_MAB_TYPE) {
+					profile->mAB = read_tag_lutmABType(src, index, TAG_A2B0);
+				}
+			}
+			if (find_tag(index, TAG_B2A0)) {
+				if (read_u32(src, find_tag(index, TAG_B2A0)->offset) == LUT8_TYPE ||
+				    read_u32(src, find_tag(index, TAG_B2A0)->offset) == LUT16_TYPE) {
+					profile->B2A0 = read_tag_lutType(src, index, TAG_B2A0);
+				} else if (read_u32(src, find_tag(index, TAG_B2A0)->offset) == LUT_MBA_TYPE) {
+					profile->mBA = read_tag_lutmABType(src, index, TAG_B2A0);
+				}
+			}
+			if (find_tag(index, TAG_rXYZ) || !qcms_supports_iccv4) {
+				profile->redColorant = read_tag_XYZType(src, index, TAG_rXYZ);
+				profile->greenColorant = read_tag_XYZType(src, index, TAG_gXYZ);
+				profile->blueColorant = read_tag_XYZType(src, index, TAG_bXYZ);
+			}
+
+			if (!src->valid)
+				goto invalid_tag_table;
+
+			if (find_tag(index, TAG_rTRC) || !qcms_supports_iccv4) {
+				profile->redTRC = read_tag_curveType(src, index, TAG_rTRC);
+				profile->greenTRC = read_tag_curveType(src, index, TAG_gTRC);
+				profile->blueTRC = read_tag_curveType(src, index, TAG_bTRC);
+
+				if (!profile->redTRC || !profile->blueTRC || !profile->greenTRC)
+					goto invalid_tag_table;
+			}
+		} else if (profile->color_space == GRAY_SIGNATURE) {
+
+			profile->grayTRC = read_tag_curveType(src, index, TAG_kTRC);
+			if (!profile->grayTRC)
+				goto invalid_tag_table;
+
+		} else {
+			assert(0 && "read_color_space protects against entering here");
+			goto invalid_tag_table;
+		}
+	} else {
+		goto invalid_tag_table;
+	}
+
+	if (!src->valid)
+		goto invalid_tag_table;
+
+	free(index.tags);
+
+	return profile;
+
+invalid_tag_table:
+	free(index.tags);
+invalid_profile:
+	qcms_profile_release(profile);
+	return INVALID_PROFILE;
+}
+
+qcms_bool qcms_profile_match(qcms_profile *p1, qcms_profile *p2)
+{
+    return memcmp(p1->description, p2->description, sizeof p1->description) == 0;
+}
+
+qcms_intent qcms_profile_get_rendering_intent(qcms_profile *profile)
+{
+	return profile->rendering_intent;
+}
+
+icColorSpaceSignature
+qcms_profile_get_color_space(qcms_profile *profile)
+{
+	return profile->color_space;
+}
+
+static void lut_release(struct lutType *lut)
+{
+	free(lut);
+}
+
+void qcms_profile_release(qcms_profile *profile)
+{
+	if (profile->output_table_r)
+		precache_release(profile->output_table_r);
+	if (profile->output_table_g)
+		precache_release(profile->output_table_g);
+	if (profile->output_table_b)
+		precache_release(profile->output_table_b);
+
+	if (profile->A2B0)
+		lut_release(profile->A2B0);
+	if (profile->B2A0)
+		lut_release(profile->B2A0);
+
+	if (profile->mAB)
+		mAB_release(profile->mAB);
+	if (profile->mBA)
+		mAB_release(profile->mBA);
+
+	free(profile->redTRC);
+	free(profile->blueTRC);
+	free(profile->greenTRC);
+	free(profile->grayTRC);
+	free(profile);
+}
+
+
+#include <stdio.h>
+qcms_profile* qcms_profile_from_file(FILE *file)
+{
+	uint32_t length, remaining_length;
+	qcms_profile *profile;
+	size_t read_length;
+	be32 length_be;
+	void *data;
+
+	if (fread(&length_be, 1, sizeof(length_be), file) != sizeof(length_be))
+		return BAD_VALUE_PROFILE;
+
+	length = be32_to_cpu(length_be);
+	if (length > MAX_PROFILE_SIZE || length < sizeof(length_be))
+		return BAD_VALUE_PROFILE;
+
+	/* allocate room for the entire profile */
+	data = malloc(length);
+	if (!data)
+		return NO_MEM_PROFILE;
+
+	/* copy in length to the front so that the buffer will contain the entire profile */
+	*((be32*)data) = length_be;
+	remaining_length = length - sizeof(length_be);
+
+	/* read the rest profile */
+	read_length = fread((unsigned char*)data + sizeof(length_be), 1, remaining_length, file);
+	if (read_length != remaining_length) {
+		free(data);
+		return INVALID_PROFILE;
+	}
+
+	profile = qcms_profile_from_memory(data, length);
+	free(data);
+	return profile;
+}
+
+qcms_profile* qcms_profile_from_path(const char *path)
+{
+	qcms_profile *profile = NULL;
+	FILE *file = fopen(path, "rb");
+	if (file) {
+		profile = qcms_profile_from_file(file);
+		fclose(file);
+	}
+	return profile;
+}
+
+#ifdef _WIN32
+/* Unicode path version */
+qcms_profile* qcms_profile_from_unicode_path(const wchar_t *path)
+{
+	qcms_profile *profile = NULL;
+	FILE *file = _wfopen(path, L"rb");
+	if (file) {
+		profile = qcms_profile_from_file(file);
+		fclose(file);
+	}
+	return profile;
+}
+#endif
diff --git a/third_party/qcms/src/matrix.c b/third_party/qcms/src/matrix.c
new file mode 100644
index 0000000..0ce5bd6
--- /dev/null
+++ b/third_party/qcms/src/matrix.c
@@ -0,0 +1,136 @@
+/* vim: set ts=8 sw=8 noexpandtab: */
+//  qcms
+//  Copyright (C) 2009 Mozilla Foundation
+//  Copyright (C) 1998-2007 Marti Maria
+//
+// Permission is hereby granted, free of charge, to any person obtaining 
+// a copy of this software and associated documentation files (the "Software"), 
+// to deal in the Software without restriction, including without limitation 
+// the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+// and/or sell copies of the Software, and to permit persons to whom the Software 
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in 
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO 
+// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#include <stdlib.h>
+#include "qcmsint.h"
+#include "matrix.h"
+
+struct vector matrix_eval(struct matrix mat, struct vector v)
+{
+	struct vector result;
+	result.v[0] = mat.m[0][0]*v.v[0] + mat.m[0][1]*v.v[1] + mat.m[0][2]*v.v[2];
+	result.v[1] = mat.m[1][0]*v.v[0] + mat.m[1][1]*v.v[1] + mat.m[1][2]*v.v[2];
+	result.v[2] = mat.m[2][0]*v.v[0] + mat.m[2][1]*v.v[1] + mat.m[2][2]*v.v[2];
+	return result;
+}
+
+//XXX: should probably pass by reference and we could
+//probably reuse this computation in matrix_invert
+float matrix_det(struct matrix mat)
+{
+	float det;
+	det = mat.m[0][0]*mat.m[1][1]*mat.m[2][2] +
+		mat.m[0][1]*mat.m[1][2]*mat.m[2][0] +
+		mat.m[0][2]*mat.m[1][0]*mat.m[2][1] -
+		mat.m[0][0]*mat.m[1][2]*mat.m[2][1] -
+		mat.m[0][1]*mat.m[1][0]*mat.m[2][2] -
+		mat.m[0][2]*mat.m[1][1]*mat.m[2][0];
+	return det;
+}
+
+/* from pixman and cairo and Mathematics for Game Programmers */
+/* lcms uses gauss-jordan elimination with partial pivoting which is
+ * less efficient and not as numerically stable. See Mathematics for
+ * Game Programmers. */
+struct matrix matrix_invert(struct matrix mat)
+{
+	struct matrix dest_mat;
+	int i,j;
+	static int a[3] = { 2, 2, 1 };
+	static int b[3] = { 1, 0, 0 };
+
+	/* inv  (A) = 1/det (A) * adj (A) */
+	float det = matrix_det(mat);
+
+	if (det == 0) {
+		dest_mat.invalid = true;
+	} else {
+		dest_mat.invalid = false;
+	}
+
+	det = 1/det;
+
+	for (j = 0; j < 3; j++) {
+		for (i = 0; i < 3; i++) {
+			double p;
+			int ai = a[i];
+			int aj = a[j];
+			int bi = b[i];
+			int bj = b[j];
+
+			p = mat.m[ai][aj] * mat.m[bi][bj] -
+				mat.m[ai][bj] * mat.m[bi][aj];
+			if (((i + j) & 1) != 0)
+				p = -p;
+
+			dest_mat.m[j][i] = det * p;
+		}
+	}
+	return dest_mat;
+}
+
+struct matrix matrix_identity(void)
+{
+	struct matrix i;
+	i.m[0][0] = 1;
+	i.m[0][1] = 0;
+	i.m[0][2] = 0;
+	i.m[1][0] = 0;
+	i.m[1][1] = 1;
+	i.m[1][2] = 0;
+	i.m[2][0] = 0;
+	i.m[2][1] = 0;
+	i.m[2][2] = 1;
+	i.invalid = false;
+	return i;
+}
+
+struct matrix matrix_invalid(void)
+{
+	struct matrix inv = matrix_identity();
+	inv.invalid = true;
+	return inv;
+}
+
+
+/* from pixman */
+/* MAT3per... */
+struct matrix matrix_multiply(struct matrix a, struct matrix b)
+{
+	struct matrix result;
+	int dx, dy;
+	int o;
+	for (dy = 0; dy < 3; dy++) {
+		for (dx = 0; dx < 3; dx++) {
+			double v = 0;
+			for (o = 0; o < 3; o++) {
+				v += a.m[dy][o] * b.m[o][dx];
+			}
+			result.m[dy][dx] = v;
+		}
+	}
+	result.invalid = a.invalid || b.invalid;
+	return result;
+}
+
+
diff --git a/third_party/qcms/src/matrix.h b/third_party/qcms/src/matrix.h
new file mode 100644
index 0000000..5011988
--- /dev/null
+++ b/third_party/qcms/src/matrix.h
@@ -0,0 +1,39 @@
+/* vim: set ts=8 sw=8 noexpandtab: */
+//  qcms
+//  Copyright (C) 2009 Mozilla Foundation
+//  Copyright (C) 1998-2007 Marti Maria
+//
+// Permission is hereby granted, free of charge, to any person obtaining 
+// a copy of this software and associated documentation files (the "Software"), 
+// to deal in the Software without restriction, including without limitation 
+// the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+// and/or sell copies of the Software, and to permit persons to whom the Software 
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in 
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO 
+// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#ifndef _QCMS_MATRIX_H
+#define _QCMS_MATRIX_H
+
+struct vector {
+        float v[3];
+};
+
+struct vector matrix_eval(struct matrix mat, struct vector v);
+float matrix_det(struct matrix mat);
+struct matrix matrix_identity(void);
+struct matrix matrix_multiply(struct matrix a, struct matrix b);
+struct matrix matrix_invert(struct matrix mat);
+
+struct matrix matrix_invalid(void);
+
+#endif
diff --git a/third_party/qcms/src/qcms.h b/third_party/qcms/src/qcms.h
new file mode 100644
index 0000000..e59528a
--- /dev/null
+++ b/third_party/qcms/src/qcms.h
@@ -0,0 +1,171 @@
+#ifndef QCMS_H
+#define QCMS_H
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+/* if we've already got an ICC_H header we can ignore the following */
+#ifndef ICC_H
+/* icc34 defines */
+
+/***************************************************************** 
+ Copyright (c) 1994-1996 SunSoft, Inc.
+
+                    Rights Reserved
+
+Permission is hereby granted, free of charge, to any person 
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without restrict- 
+ion, including without limitation the rights to use, copy, modify, 
+merge, publish distribute, sublicense, and/or sell copies of the 
+Software, and to permit persons to whom the Software is furnished 
+to do so, subject to the following conditions: 
+ 
+The above copyright notice and this permission notice shall be 
+included in all copies or substantial portions of the Software. 
+ 
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-
+INFRINGEMENT.  IN NO EVENT SHALL SUNSOFT, INC. OR ITS PARENT 
+COMPANY BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 
+OTHER DEALINGS IN THE SOFTWARE. 
+ 
+Except as contained in this notice, the name of SunSoft, Inc. 
+shall not be used in advertising or otherwise to promote the 
+sale, use or other dealings in this Software without written 
+authorization from SunSoft Inc. 
+******************************************************************/
+
+/*
+ * QCMS, in general, is not threadsafe. However, it should be safe to create
+ * profile and transformation objects on different threads, so long as you
+ * don't use the same objects on different threads at the same time.
+ */
+
+/* 
+ * Color Space Signatures
+ * Note that only icSigXYZData and icSigLabData are valid
+ * Profile Connection Spaces (PCSs)
+ */ 
+typedef enum {
+    icSigXYZData                        = 0x58595A20L,  /* 'XYZ ' */
+    icSigLabData                        = 0x4C616220L,  /* 'Lab ' */
+    icSigLuvData                        = 0x4C757620L,  /* 'Luv ' */
+    icSigYCbCrData                      = 0x59436272L,  /* 'YCbr' */
+    icSigYxyData                        = 0x59787920L,  /* 'Yxy ' */
+    icSigRgbData                        = 0x52474220L,  /* 'RGB ' */
+    icSigGrayData                       = 0x47524159L,  /* 'GRAY' */
+    icSigHsvData                        = 0x48535620L,  /* 'HSV ' */
+    icSigHlsData                        = 0x484C5320L,  /* 'HLS ' */
+    icSigCmykData                       = 0x434D594BL,  /* 'CMYK' */
+    icSigCmyData                        = 0x434D5920L,  /* 'CMY ' */
+    icSig2colorData                     = 0x32434C52L,  /* '2CLR' */
+    icSig3colorData                     = 0x33434C52L,  /* '3CLR' */
+    icSig4colorData                     = 0x34434C52L,  /* '4CLR' */
+    icSig5colorData                     = 0x35434C52L,  /* '5CLR' */
+    icSig6colorData                     = 0x36434C52L,  /* '6CLR' */
+    icSig7colorData                     = 0x37434C52L,  /* '7CLR' */
+    icSig8colorData                     = 0x38434C52L,  /* '8CLR' */
+    icSig9colorData                     = 0x39434C52L,  /* '9CLR' */
+    icSig10colorData                    = 0x41434C52L,  /* 'ACLR' */
+    icSig11colorData                    = 0x42434C52L,  /* 'BCLR' */
+    icSig12colorData                    = 0x43434C52L,  /* 'CCLR' */
+    icSig13colorData                    = 0x44434C52L,  /* 'DCLR' */
+    icSig14colorData                    = 0x45434C52L,  /* 'ECLR' */
+    icSig15colorData                    = 0x46434C52L,  /* 'FCLR' */
+    icMaxEnumData                       = 0xFFFFFFFFL   
+} icColorSpaceSignature;
+#endif
+
+#include <stdio.h>
+
+typedef int qcms_bool;
+
+struct _qcms_transform;
+typedef struct _qcms_transform qcms_transform;
+
+struct _qcms_profile;
+typedef struct _qcms_profile qcms_profile;
+
+/* these values match the Rendering Intent values from the ICC spec */
+typedef enum {
+	QCMS_INTENT_DEFAULT = 0,
+	QCMS_INTENT_PERCEPTUAL = 0,
+	QCMS_INTENT_RELATIVE_COLORIMETRIC = 1,
+	QCMS_INTENT_SATURATION = 2,
+	QCMS_INTENT_ABSOLUTE_COLORIMETRIC = 3
+} qcms_intent;
+
+//XXX: I don't really like the _DATA_ prefix
+typedef enum {
+	QCMS_DATA_RGB_8,
+	QCMS_DATA_RGBA_8,
+	QCMS_DATA_GRAY_8,
+	QCMS_DATA_GRAYA_8
+} qcms_data_type;
+
+/* Format of the output data for qcms_transform_data_type() */
+typedef enum {
+	QCMS_OUTPUT_RGBX,
+	QCMS_OUTPUT_BGRX
+} qcms_output_type;
+
+/* the names for the following two types are sort of ugly */
+typedef struct
+{
+	double x;
+	double y;
+	double Y;
+} qcms_CIE_xyY;
+
+typedef struct
+{
+	qcms_CIE_xyY red;
+	qcms_CIE_xyY green;
+	qcms_CIE_xyY blue;
+} qcms_CIE_xyYTRIPLE;
+
+qcms_profile* qcms_profile_create_rgb_with_gamma(
+		qcms_CIE_xyY white_point,
+		qcms_CIE_xyYTRIPLE primaries,
+		float gamma);
+
+qcms_profile* qcms_profile_from_memory(const void *mem, size_t size);
+
+qcms_profile* qcms_profile_from_file(FILE *file);
+qcms_profile* qcms_profile_from_path(const char *path);
+#ifdef _WIN32
+qcms_profile* qcms_profile_from_unicode_path(const wchar_t *path);
+#endif
+qcms_profile* qcms_profile_sRGB(void);
+void qcms_profile_release(qcms_profile *profile);
+
+qcms_bool qcms_profile_is_bogus(qcms_profile *profile);
+qcms_intent qcms_profile_get_rendering_intent(qcms_profile *profile);
+icColorSpaceSignature qcms_profile_get_color_space(qcms_profile *profile);
+
+qcms_bool qcms_profile_match(qcms_profile *p1, qcms_profile *p2);
+
+void qcms_profile_precache_output_transform(qcms_profile *profile);
+
+qcms_transform* qcms_transform_create(
+		qcms_profile *in, qcms_data_type in_type,
+		qcms_profile* out, qcms_data_type out_type,
+		qcms_intent intent);
+
+void qcms_transform_release(qcms_transform *);
+
+void qcms_transform_data(qcms_transform *transform, void *src, void *dest, size_t length);
+void qcms_transform_data_type(qcms_transform *transform, void *src, void *dest, size_t length, qcms_output_type type);
+
+void qcms_enable_iccv4();
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif
diff --git a/third_party/qcms/src/qcmsint.h b/third_party/qcms/src/qcmsint.h
new file mode 100644
index 0000000..4116ed5
--- /dev/null
+++ b/third_party/qcms/src/qcmsint.h
@@ -0,0 +1,325 @@
+/* vim: set ts=8 sw=8 noexpandtab: */
+//  qcms
+//  Copyright (C) 2009 Mozilla Foundation
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the Software
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#include "qcms.h"
+#include "qcmstypes.h"
+
+/* used as a lookup table for the output transformation.
+ * we refcount them so we only need to have one around per output
+ * profile, instead of duplicating them per transform */
+struct precache_output
+{
+	int ref_count;
+	/* We previously used a count of 65536 here but that seems like more
+	 * precision than we actually need.  By reducing the size we can
+	 * improve startup performance and reduce memory usage. ColorSync on
+	 * 10.5 uses 4097 which is perhaps because they use a fixed point
+	 * representation where 1. is represented by 0x1000. */
+#define PRECACHE_OUTPUT_SIZE 8192
+#define PRECACHE_OUTPUT_MAX (PRECACHE_OUTPUT_SIZE-1)
+	uint8_t data[PRECACHE_OUTPUT_SIZE];
+};
+
+#ifdef _MSC_VER
+#define ALIGN __declspec(align(16))
+#else
+#define ALIGN __attribute__(( aligned (16) ))
+#endif
+
+typedef struct _qcms_format_type {
+	int r;
+	int b;
+} qcms_format_type;
+
+struct _qcms_transform {
+	float ALIGN matrix[3][4];
+	float *input_gamma_table_r;
+	float *input_gamma_table_g;
+	float *input_gamma_table_b;
+
+	float *input_clut_table_r;
+	float *input_clut_table_g;
+	float *input_clut_table_b;
+	uint16_t input_clut_table_length;
+	float *r_clut;
+	float *g_clut;
+	float *b_clut;
+	uint16_t grid_size;
+	float *output_clut_table_r;
+	float *output_clut_table_g;
+	float *output_clut_table_b;
+	uint16_t output_clut_table_length;
+ 
+	float *input_gamma_table_gray;
+
+	float out_gamma_r;
+	float out_gamma_g;
+	float out_gamma_b;
+
+	float out_gamma_gray;
+
+	uint16_t *output_gamma_lut_r;
+	uint16_t *output_gamma_lut_g;
+	uint16_t *output_gamma_lut_b;
+
+	uint16_t *output_gamma_lut_gray;
+
+	size_t output_gamma_lut_r_length;
+	size_t output_gamma_lut_g_length;
+	size_t output_gamma_lut_b_length;
+
+	size_t output_gamma_lut_gray_length;
+
+	struct precache_output *output_table_r;
+	struct precache_output *output_table_g;
+	struct precache_output *output_table_b;
+
+	void (*transform_fn)(struct _qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, struct _qcms_format_type output_format);
+};
+
+struct matrix {
+	float m[3][3];
+	bool invalid;
+};
+
+struct qcms_modular_transform;
+
+typedef void (*transform_module_fn_t)(struct qcms_modular_transform *transform, float *src, float *dest, size_t length);
+
+struct qcms_modular_transform {
+	struct matrix matrix;
+	float tx, ty, tz;
+
+	float *input_clut_table_r;
+	float *input_clut_table_g;
+	float *input_clut_table_b;
+	uint16_t input_clut_table_length;
+	float *r_clut;
+	float *g_clut;
+	float *b_clut;
+	uint16_t grid_size;
+	float *output_clut_table_r;
+	float *output_clut_table_g;
+	float *output_clut_table_b;
+	uint16_t output_clut_table_length;
+ 
+	uint16_t *output_gamma_lut_r;
+	uint16_t *output_gamma_lut_g;
+	uint16_t *output_gamma_lut_b;
+
+	size_t output_gamma_lut_r_length;
+	size_t output_gamma_lut_g_length;
+	size_t output_gamma_lut_b_length;
+
+	transform_module_fn_t transform_module_fn;
+	struct qcms_modular_transform *next_transform;
+};
+
+typedef int32_t s15Fixed16Number;
+typedef uint16_t uInt16Number;
+typedef uint8_t uInt8Number;
+
+struct XYZNumber {
+	s15Fixed16Number X;
+	s15Fixed16Number Y;
+	s15Fixed16Number Z;
+};
+
+struct curveType {
+	uint32_t type;
+	uint32_t count;
+	float parameter[7];
+	uInt16Number data[];
+};
+
+struct lutmABType {
+	uint8_t num_in_channels;
+	uint8_t num_out_channels;
+	// 16 is the upperbound, actual is 0..num_in_channels.
+	uint8_t num_grid_points[16];
+
+	s15Fixed16Number e00;
+	s15Fixed16Number e01;
+	s15Fixed16Number e02;
+	s15Fixed16Number e03;
+	s15Fixed16Number e10;
+	s15Fixed16Number e11;
+	s15Fixed16Number e12;
+	s15Fixed16Number e13;
+	s15Fixed16Number e20;
+	s15Fixed16Number e21;
+	s15Fixed16Number e22;
+	s15Fixed16Number e23;
+
+	// reversed elements (for mBA)
+	bool reversed;
+
+	float *clut_table;
+	struct curveType *a_curves[10];
+	struct curveType *b_curves[10];
+	struct curveType *m_curves[10];
+	float clut_table_data[];
+};
+
+/* should lut8Type and lut16Type be different types? */
+struct lutType { // used by lut8Type/lut16Type (mft2) only
+	uint8_t num_input_channels;
+	uint8_t num_output_channels;
+	uint8_t num_clut_grid_points;
+
+	s15Fixed16Number e00;
+	s15Fixed16Number e01;
+	s15Fixed16Number e02;
+	s15Fixed16Number e10;
+	s15Fixed16Number e11;
+	s15Fixed16Number e12;
+	s15Fixed16Number e20;
+	s15Fixed16Number e21;
+	s15Fixed16Number e22;
+
+	uint16_t num_input_table_entries;
+	uint16_t num_output_table_entries;
+
+	float *input_table;
+	float *clut_table;
+	float *output_table;
+
+	float table_data[];
+};
+#if 0
+/* this is from an intial idea of having the struct correspond to the data in
+ * the file. I decided that it wasn't a good idea.
+ */
+struct tag_value {
+	uint32_t type;
+	union {
+		struct {
+			uint32_t reserved;
+			struct {
+				s15Fixed16Number X;
+				s15Fixed16Number Y;
+				s15Fixed16Number Z;
+			} XYZNumber;
+		} XYZType;
+	};
+}; // I guess we need to pack this?
+#endif
+
+#define RGB_SIGNATURE  0x52474220
+#define GRAY_SIGNATURE 0x47524159
+#define XYZ_SIGNATURE  0x58595A20
+#define LAB_SIGNATURE  0x4C616220
+
+struct _qcms_profile {
+	char description[64];
+	uint32_t class;
+	uint32_t color_space;
+	uint32_t pcs;
+	qcms_intent rendering_intent;
+	struct XYZNumber redColorant;
+	struct XYZNumber blueColorant;
+	struct XYZNumber greenColorant;
+	struct curveType *redTRC;
+	struct curveType *blueTRC;
+	struct curveType *greenTRC;
+	struct curveType *grayTRC;
+	struct lutType *A2B0;
+	struct lutType *B2A0;
+	struct lutmABType *mAB;
+	struct lutmABType *mBA;
+	struct matrix chromaticAdaption;
+
+	struct precache_output *output_table_r;
+	struct precache_output *output_table_g;
+	struct precache_output *output_table_b;
+};
+
+#ifdef _MSC_VER
+#define inline _inline
+#endif
+
+/* produces the nearest float to 'a' with a maximum error
+ * of 1/1024 which happens for large values like 0x40000040 */
+static inline float s15Fixed16Number_to_float(s15Fixed16Number a)
+{
+	return ((int32_t)a)/65536.f;
+}
+
+static inline s15Fixed16Number double_to_s15Fixed16Number(double v)
+{
+	return (int32_t)(v*65536);
+}
+
+static inline float uInt8Number_to_float(uInt8Number a)
+{
+	return ((int32_t)a)/255.f;
+}
+
+static inline float uInt16Number_to_float(uInt16Number a)
+{
+	return ((int32_t)a)/65535.f;
+}
+
+
+void precache_release(struct precache_output *p);
+qcms_bool set_rgb_colorants(qcms_profile *profile, qcms_CIE_xyY white_point, qcms_CIE_xyYTRIPLE primaries);
+
+void qcms_transform_data_rgb_out_lut_sse2(qcms_transform *transform,
+                                          unsigned char *src,
+                                          unsigned char *dest,
+                                          size_t length,
+                                          qcms_format_type output_format);
+void qcms_transform_data_rgba_out_lut_sse2(qcms_transform *transform,
+                                          unsigned char *src,
+                                          unsigned char *dest,
+                                          size_t length,
+                                          qcms_format_type output_format);
+void qcms_transform_data_rgb_out_lut_sse1(qcms_transform *transform,
+                                          unsigned char *src,
+                                          unsigned char *dest,
+                                          size_t length,
+                                          qcms_format_type output_format);
+void qcms_transform_data_rgba_out_lut_sse1(qcms_transform *transform,
+                                          unsigned char *src,
+                                          unsigned char *dest,
+                                          size_t length,
+                                          qcms_format_type output_format);
+
+extern qcms_bool qcms_supports_iccv4;
+
+
+#ifdef _MSC_VER
+
+long __cdecl _InterlockedIncrement(long volatile *);
+long __cdecl _InterlockedDecrement(long volatile *);
+#pragma intrinsic(_InterlockedIncrement)
+#pragma intrinsic(_InterlockedDecrement)
+
+#define qcms_atomic_increment(x) _InterlockedIncrement((long volatile *)&x)
+#define qcms_atomic_decrement(x) _InterlockedDecrement((long volatile*)&x)
+
+#else
+
+#define qcms_atomic_increment(x) __sync_add_and_fetch(&x, 1)
+#define qcms_atomic_decrement(x) __sync_sub_and_fetch(&x, 1)
+
+#endif
diff --git a/third_party/qcms/src/qcmstypes.h b/third_party/qcms/src/qcmstypes.h
new file mode 100644
index 0000000..d58f691
--- /dev/null
+++ b/third_party/qcms/src/qcmstypes.h
@@ -0,0 +1,77 @@
+//  qcms
+//  Copyright (C) 2009 Mozilla Foundation
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the Software
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#ifndef QCMS_TYPES_H
+#define QCMS_TYPES_H
+
+#if BYTE_ORDER == LITTLE_ENDIAN
+#define IS_LITTLE_ENDIAN
+#elif BYTE_ORDER == BIG_ENDIAN
+#define IS_BIG_ENDIAN
+#endif
+
+/* all of the platforms that we use _MSC_VER on are little endian
+ * so this is sufficient for now */
+#ifdef _MSC_VER
+#define IS_LITTLE_ENDIAN
+#endif
+
+#ifdef __OS2__
+#define IS_LITTLE_ENDIAN
+#endif
+
+#if !defined(IS_LITTLE_ENDIAN) && !defined(IS_BIG_ENDIAN)
+#error Unknown endianess
+#endif
+
+#if defined (_SVR4) || defined (SVR4) || defined (__OpenBSD__) || defined (_sgi) || defined (__sun) || defined (sun) || defined (__digital__)
+#  include <inttypes.h>
+#elif defined (_MSC_VER) && _MSC_VER < 1600
+typedef __int8 int8_t;
+typedef unsigned __int8 uint8_t;
+typedef __int16 int16_t;
+typedef unsigned __int16 uint16_t;
+typedef __int32 int32_t;
+typedef unsigned __int32 uint32_t;
+typedef __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+#ifdef _WIN64
+typedef unsigned __int64 uintptr_t;
+#else
+#pragma warning(push)
+/* Disable benign redefinition of type warning 4142 */
+#pragma warning(disable:4142)
+typedef unsigned long uintptr_t;
+/* Restore warnings */
+#pragma warning(pop)
+#endif
+
+#elif defined (_AIX)
+#  include <sys/inttypes.h>
+#else
+#  include <stdint.h>
+#endif
+
+typedef qcms_bool bool;
+#define true 1
+#define false 0
+
+#endif
diff --git a/third_party/qcms/src/transform-sse1.c b/third_party/qcms/src/transform-sse1.c
new file mode 100644
index 0000000..aaee1bf
--- /dev/null
+++ b/third_party/qcms/src/transform-sse1.c
@@ -0,0 +1,280 @@
+//  qcms
+//  Copyright (C) 2009 Mozilla Foundation
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the Software
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#include <xmmintrin.h>
+
+#include "qcmsint.h"
+
+/* pre-shuffled: just load these into XMM reg instead of load-scalar/shufps sequence */
+#define FLOATSCALE  (float)(PRECACHE_OUTPUT_SIZE)
+#define CLAMPMAXVAL ( ((float) (PRECACHE_OUTPUT_SIZE - 1)) / PRECACHE_OUTPUT_SIZE )
+static const ALIGN float floatScaleX4[4] =
+    { FLOATSCALE, FLOATSCALE, FLOATSCALE, FLOATSCALE};
+static const ALIGN float clampMaxValueX4[4] =
+    { CLAMPMAXVAL, CLAMPMAXVAL, CLAMPMAXVAL, CLAMPMAXVAL};
+
+void qcms_transform_data_rgb_out_lut_sse1(qcms_transform *transform,
+                                          unsigned char *src,
+                                          unsigned char *dest,
+                                          size_t length,
+                                          qcms_format_type output_format)
+{
+    unsigned int i;
+    float (*mat)[4] = transform->matrix;
+    char input_back[32];
+    /* Ensure we have a buffer that's 16 byte aligned regardless of the original
+     * stack alignment. We can't use __attribute__((aligned(16))) or __declspec(align(32))
+     * because they don't work on stack variables. gcc 4.4 does do the right thing
+     * on x86 but that's too new for us right now. For more info: gcc bug #16660 */
+    float const * input = (float*)(((uintptr_t)&input_back[16]) & ~0xf);
+    /* share input and output locations to save having to keep the
+     * locations in separate registers */
+    uint32_t const * output = (uint32_t*)input;
+
+    /* deref *transform now to avoid it in loop */
+    const float *igtbl_r = transform->input_gamma_table_r;
+    const float *igtbl_g = transform->input_gamma_table_g;
+    const float *igtbl_b = transform->input_gamma_table_b;
+
+    /* deref *transform now to avoid it in loop */
+    const uint8_t *otdata_r = &transform->output_table_r->data[0];
+    const uint8_t *otdata_g = &transform->output_table_g->data[0];
+    const uint8_t *otdata_b = &transform->output_table_b->data[0];
+
+    /* input matrix values never change */
+    const __m128 mat0  = _mm_load_ps(mat[0]);
+    const __m128 mat1  = _mm_load_ps(mat[1]);
+    const __m128 mat2  = _mm_load_ps(mat[2]);
+
+    /* these values don't change, either */
+    const __m128 max   = _mm_load_ps(clampMaxValueX4);
+    const __m128 min   = _mm_setzero_ps();
+    const __m128 scale = _mm_load_ps(floatScaleX4);
+
+    /* working variables */
+    __m128 vec_r, vec_g, vec_b, result;
+    const int r_out = output_format.r;
+    const int b_out = output_format.b;
+
+    /* CYA */
+    if (!length)
+        return;
+
+    /* one pixel is handled outside of the loop */
+    length--;
+
+    /* setup for transforming 1st pixel */
+    vec_r = _mm_load_ss(&igtbl_r[src[0]]);
+    vec_g = _mm_load_ss(&igtbl_g[src[1]]);
+    vec_b = _mm_load_ss(&igtbl_b[src[2]]);
+    src += 3;
+
+    /* transform all but final pixel */
+
+    for (i=0; i<length; i++)
+    {
+        /* position values from gamma tables */
+        vec_r = _mm_shuffle_ps(vec_r, vec_r, 0);
+        vec_g = _mm_shuffle_ps(vec_g, vec_g, 0);
+        vec_b = _mm_shuffle_ps(vec_b, vec_b, 0);
+
+        /* gamma * matrix */
+        vec_r = _mm_mul_ps(vec_r, mat0);
+        vec_g = _mm_mul_ps(vec_g, mat1);
+        vec_b = _mm_mul_ps(vec_b, mat2);
+
+        /* crunch, crunch, crunch */
+        vec_r  = _mm_add_ps(vec_r, _mm_add_ps(vec_g, vec_b));
+        vec_r  = _mm_max_ps(min, vec_r);
+        vec_r  = _mm_min_ps(max, vec_r);
+        result = _mm_mul_ps(vec_r, scale);
+
+        /* store calc'd output tables indices */
+        *((__m64 *)&output[0]) = _mm_cvtps_pi32(result);
+        result = _mm_movehl_ps(result, result);
+        *((__m64 *)&output[2]) = _mm_cvtps_pi32(result) ;
+
+        /* load for next loop while store completes */
+        vec_r = _mm_load_ss(&igtbl_r[src[0]]);
+        vec_g = _mm_load_ss(&igtbl_g[src[1]]);
+        vec_b = _mm_load_ss(&igtbl_b[src[2]]);
+        src += 3;
+
+        /* use calc'd indices to output RGB values */
+        dest[r_out] = otdata_r[output[0]];
+        dest[1]     = otdata_g[output[1]];
+        dest[b_out] = otdata_b[output[2]];
+        dest += 3;
+    }
+
+    /* handle final (maybe only) pixel */
+
+    vec_r = _mm_shuffle_ps(vec_r, vec_r, 0);
+    vec_g = _mm_shuffle_ps(vec_g, vec_g, 0);
+    vec_b = _mm_shuffle_ps(vec_b, vec_b, 0);
+
+    vec_r = _mm_mul_ps(vec_r, mat0);
+    vec_g = _mm_mul_ps(vec_g, mat1);
+    vec_b = _mm_mul_ps(vec_b, mat2);
+
+    vec_r  = _mm_add_ps(vec_r, _mm_add_ps(vec_g, vec_b));
+    vec_r  = _mm_max_ps(min, vec_r);
+    vec_r  = _mm_min_ps(max, vec_r);
+    result = _mm_mul_ps(vec_r, scale);
+
+    *((__m64 *)&output[0]) = _mm_cvtps_pi32(result);
+    result = _mm_movehl_ps(result, result);
+    *((__m64 *)&output[2]) = _mm_cvtps_pi32(result);
+
+    dest[r_out] = otdata_r[output[0]];
+    dest[1]     = otdata_g[output[1]];
+    dest[b_out] = otdata_b[output[2]];
+
+    _mm_empty();
+}
+
+void qcms_transform_data_rgba_out_lut_sse1(qcms_transform *transform,
+                                           unsigned char *src,
+                                           unsigned char *dest,
+                                           size_t length,
+                                           qcms_format_type output_format)
+{
+    unsigned int i;
+    float (*mat)[4] = transform->matrix;
+    char input_back[32];
+    /* Ensure we have a buffer that's 16 byte aligned regardless of the original
+     * stack alignment. We can't use __attribute__((aligned(16))) or __declspec(align(32))
+     * because they don't work on stack variables. gcc 4.4 does do the right thing
+     * on x86 but that's too new for us right now. For more info: gcc bug #16660 */
+    float const * input = (float*)(((uintptr_t)&input_back[16]) & ~0xf);
+    /* share input and output locations to save having to keep the
+     * locations in separate registers */
+    uint32_t const * output = (uint32_t*)input;
+
+    /* deref *transform now to avoid it in loop */
+    const float *igtbl_r = transform->input_gamma_table_r;
+    const float *igtbl_g = transform->input_gamma_table_g;
+    const float *igtbl_b = transform->input_gamma_table_b;
+
+    /* deref *transform now to avoid it in loop */
+    const uint8_t *otdata_r = &transform->output_table_r->data[0];
+    const uint8_t *otdata_g = &transform->output_table_g->data[0];
+    const uint8_t *otdata_b = &transform->output_table_b->data[0];
+
+    /* input matrix values never change */
+    const __m128 mat0  = _mm_load_ps(mat[0]);
+    const __m128 mat1  = _mm_load_ps(mat[1]);
+    const __m128 mat2  = _mm_load_ps(mat[2]);
+
+    /* these values don't change, either */
+    const __m128 max   = _mm_load_ps(clampMaxValueX4);
+    const __m128 min   = _mm_setzero_ps();
+    const __m128 scale = _mm_load_ps(floatScaleX4);
+
+    /* working variables */
+    __m128 vec_r, vec_g, vec_b, result;
+    const int r_out = output_format.r;
+    const int b_out = output_format.b;
+    unsigned char alpha;
+
+    /* CYA */
+    if (!length)
+        return;
+
+    /* one pixel is handled outside of the loop */
+    length--;
+
+    /* setup for transforming 1st pixel */
+    vec_r = _mm_load_ss(&igtbl_r[src[0]]);
+    vec_g = _mm_load_ss(&igtbl_g[src[1]]);
+    vec_b = _mm_load_ss(&igtbl_b[src[2]]);
+    alpha = src[3];
+    src += 4;
+
+    /* transform all but final pixel */
+
+    for (i=0; i<length; i++)
+    {
+        /* position values from gamma tables */
+        vec_r = _mm_shuffle_ps(vec_r, vec_r, 0);
+        vec_g = _mm_shuffle_ps(vec_g, vec_g, 0);
+        vec_b = _mm_shuffle_ps(vec_b, vec_b, 0);
+
+        /* gamma * matrix */
+        vec_r = _mm_mul_ps(vec_r, mat0);
+        vec_g = _mm_mul_ps(vec_g, mat1);
+        vec_b = _mm_mul_ps(vec_b, mat2);
+
+        /* store alpha for this pixel; load alpha for next */
+        dest[3] = alpha;
+        alpha   = src[3];
+
+        /* crunch, crunch, crunch */
+        vec_r  = _mm_add_ps(vec_r, _mm_add_ps(vec_g, vec_b));
+        vec_r  = _mm_max_ps(min, vec_r);
+        vec_r  = _mm_min_ps(max, vec_r);
+        result = _mm_mul_ps(vec_r, scale);
+
+        /* store calc'd output tables indices */
+        *((__m64 *)&output[0]) = _mm_cvtps_pi32(result);
+        result = _mm_movehl_ps(result, result);
+        *((__m64 *)&output[2]) = _mm_cvtps_pi32(result);
+
+        /* load gamma values for next loop while store completes */
+        vec_r = _mm_load_ss(&igtbl_r[src[0]]);
+        vec_g = _mm_load_ss(&igtbl_g[src[1]]);
+        vec_b = _mm_load_ss(&igtbl_b[src[2]]);
+        src += 4;
+
+        /* use calc'd indices to output RGB values */
+        dest[r_out] = otdata_r[output[0]];
+        dest[1]     = otdata_g[output[1]];
+        dest[b_out] = otdata_b[output[2]];
+        dest += 4;
+    }
+
+    /* handle final (maybe only) pixel */
+
+    vec_r = _mm_shuffle_ps(vec_r, vec_r, 0);
+    vec_g = _mm_shuffle_ps(vec_g, vec_g, 0);
+    vec_b = _mm_shuffle_ps(vec_b, vec_b, 0);
+
+    vec_r = _mm_mul_ps(vec_r, mat0);
+    vec_g = _mm_mul_ps(vec_g, mat1);
+    vec_b = _mm_mul_ps(vec_b, mat2);
+
+    dest[3] = alpha;
+
+    vec_r  = _mm_add_ps(vec_r, _mm_add_ps(vec_g, vec_b));
+    vec_r  = _mm_max_ps(min, vec_r);
+    vec_r  = _mm_min_ps(max, vec_r);
+    result = _mm_mul_ps(vec_r, scale);
+
+    *((__m64 *)&output[0]) = _mm_cvtps_pi32(result);
+    result = _mm_movehl_ps(result, result);
+    *((__m64 *)&output[2]) = _mm_cvtps_pi32(result);
+
+    dest[r_out] = otdata_r[output[0]];
+    dest[1]     = otdata_g[output[1]];
+    dest[b_out] = otdata_b[output[2]];
+
+    _mm_empty();
+}
diff --git a/third_party/qcms/src/transform-sse2.c b/third_party/qcms/src/transform-sse2.c
new file mode 100644
index 0000000..fa7f2d1
--- /dev/null
+++ b/third_party/qcms/src/transform-sse2.c
@@ -0,0 +1,268 @@
+//  qcms
+//  Copyright (C) 2009 Mozilla Foundation
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the Software
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#include <emmintrin.h>
+
+#include "qcmsint.h"
+
+/* pre-shuffled: just load these into XMM reg instead of load-scalar/shufps sequence */
+#define FLOATSCALE  (float)(PRECACHE_OUTPUT_SIZE)
+#define CLAMPMAXVAL ( ((float) (PRECACHE_OUTPUT_SIZE - 1)) / PRECACHE_OUTPUT_SIZE )
+static const ALIGN float floatScaleX4[4] =
+    { FLOATSCALE, FLOATSCALE, FLOATSCALE, FLOATSCALE};
+static const ALIGN float clampMaxValueX4[4] =
+    { CLAMPMAXVAL, CLAMPMAXVAL, CLAMPMAXVAL, CLAMPMAXVAL};
+
+void qcms_transform_data_rgb_out_lut_sse2(qcms_transform *transform,
+                                          unsigned char *src,
+                                          unsigned char *dest,
+                                          size_t length,
+                                          qcms_format_type output_format)
+{
+    unsigned int i;
+    float (*mat)[4] = transform->matrix;
+    char input_back[32];
+    /* Ensure we have a buffer that's 16 byte aligned regardless of the original
+     * stack alignment. We can't use __attribute__((aligned(16))) or __declspec(align(32))
+     * because they don't work on stack variables. gcc 4.4 does do the right thing
+     * on x86 but that's too new for us right now. For more info: gcc bug #16660 */
+    float const * input = (float*)(((uintptr_t)&input_back[16]) & ~0xf);
+    /* share input and output locations to save having to keep the
+     * locations in separate registers */
+    uint32_t const * output = (uint32_t*)input;
+
+    /* deref *transform now to avoid it in loop */
+    const float *igtbl_r = transform->input_gamma_table_r;
+    const float *igtbl_g = transform->input_gamma_table_g;
+    const float *igtbl_b = transform->input_gamma_table_b;
+
+    /* deref *transform now to avoid it in loop */
+    const uint8_t *otdata_r = &transform->output_table_r->data[0];
+    const uint8_t *otdata_g = &transform->output_table_g->data[0];
+    const uint8_t *otdata_b = &transform->output_table_b->data[0];
+
+    /* input matrix values never change */
+    const __m128 mat0  = _mm_load_ps(mat[0]);
+    const __m128 mat1  = _mm_load_ps(mat[1]);
+    const __m128 mat2  = _mm_load_ps(mat[2]);
+
+    /* these values don't change, either */
+    const __m128 max   = _mm_load_ps(clampMaxValueX4);
+    const __m128 min   = _mm_setzero_ps();
+    const __m128 scale = _mm_load_ps(floatScaleX4);
+
+    /* working variables */
+    __m128 vec_r, vec_g, vec_b, result;
+    const int r_out = output_format.r;
+    const int b_out = output_format.b;
+
+    /* CYA */
+    if (!length)
+        return;
+
+    /* one pixel is handled outside of the loop */
+    length--;
+
+    /* setup for transforming 1st pixel */
+    vec_r = _mm_load_ss(&igtbl_r[src[0]]);
+    vec_g = _mm_load_ss(&igtbl_g[src[1]]);
+    vec_b = _mm_load_ss(&igtbl_b[src[2]]);
+    src += 3;
+
+    /* transform all but final pixel */
+
+    for (i=0; i<length; i++)
+    {
+        /* position values from gamma tables */
+        vec_r = _mm_shuffle_ps(vec_r, vec_r, 0);
+        vec_g = _mm_shuffle_ps(vec_g, vec_g, 0);
+        vec_b = _mm_shuffle_ps(vec_b, vec_b, 0);
+
+        /* gamma * matrix */
+        vec_r = _mm_mul_ps(vec_r, mat0);
+        vec_g = _mm_mul_ps(vec_g, mat1);
+        vec_b = _mm_mul_ps(vec_b, mat2);
+
+        /* crunch, crunch, crunch */
+        vec_r  = _mm_add_ps(vec_r, _mm_add_ps(vec_g, vec_b));
+        vec_r  = _mm_max_ps(min, vec_r);
+        vec_r  = _mm_min_ps(max, vec_r);
+        result = _mm_mul_ps(vec_r, scale);
+
+        /* store calc'd output tables indices */
+        _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(result));
+
+        /* load for next loop while store completes */
+        vec_r = _mm_load_ss(&igtbl_r[src[0]]);
+        vec_g = _mm_load_ss(&igtbl_g[src[1]]);
+        vec_b = _mm_load_ss(&igtbl_b[src[2]]);
+        src += 3;
+
+        /* use calc'd indices to output RGB values */
+        dest[r_out] = otdata_r[output[0]];
+        dest[1]     = otdata_g[output[1]];
+        dest[b_out] = otdata_b[output[2]];
+        dest += 3;
+    }
+
+    /* handle final (maybe only) pixel */
+
+    vec_r = _mm_shuffle_ps(vec_r, vec_r, 0);
+    vec_g = _mm_shuffle_ps(vec_g, vec_g, 0);
+    vec_b = _mm_shuffle_ps(vec_b, vec_b, 0);
+
+    vec_r = _mm_mul_ps(vec_r, mat0);
+    vec_g = _mm_mul_ps(vec_g, mat1);
+    vec_b = _mm_mul_ps(vec_b, mat2);
+
+    vec_r  = _mm_add_ps(vec_r, _mm_add_ps(vec_g, vec_b));
+    vec_r  = _mm_max_ps(min, vec_r);
+    vec_r  = _mm_min_ps(max, vec_r);
+    result = _mm_mul_ps(vec_r, scale);
+
+    _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(result));
+
+    dest[r_out] = otdata_r[output[0]];
+    dest[1]     = otdata_g[output[1]];
+    dest[b_out] = otdata_b[output[2]];
+}
+
+void qcms_transform_data_rgba_out_lut_sse2(qcms_transform *transform,
+                                           unsigned char *src,
+                                           unsigned char *dest,
+                                           size_t length,
+                                           qcms_format_type output_format)
+{
+    unsigned int i;
+    float (*mat)[4] = transform->matrix;
+    char input_back[32];
+    /* Ensure we have a buffer that's 16 byte aligned regardless of the original
+     * stack alignment. We can't use __attribute__((aligned(16))) or __declspec(align(32))
+     * because they don't work on stack variables. gcc 4.4 does do the right thing
+     * on x86 but that's too new for us right now. For more info: gcc bug #16660 */
+    float const * input = (float*)(((uintptr_t)&input_back[16]) & ~0xf);
+    /* share input and output locations to save having to keep the
+     * locations in separate registers */
+    uint32_t const * output = (uint32_t*)input;
+
+    /* deref *transform now to avoid it in loop */
+    const float *igtbl_r = transform->input_gamma_table_r;
+    const float *igtbl_g = transform->input_gamma_table_g;
+    const float *igtbl_b = transform->input_gamma_table_b;
+
+    /* deref *transform now to avoid it in loop */
+    const uint8_t *otdata_r = &transform->output_table_r->data[0];
+    const uint8_t *otdata_g = &transform->output_table_g->data[0];
+    const uint8_t *otdata_b = &transform->output_table_b->data[0];
+
+    /* input matrix values never change */
+    const __m128 mat0  = _mm_load_ps(mat[0]);
+    const __m128 mat1  = _mm_load_ps(mat[1]);
+    const __m128 mat2  = _mm_load_ps(mat[2]);
+
+    /* these values don't change, either */
+    const __m128 max   = _mm_load_ps(clampMaxValueX4);
+    const __m128 min   = _mm_setzero_ps();
+    const __m128 scale = _mm_load_ps(floatScaleX4);
+
+    /* working variables */
+    __m128 vec_r, vec_g, vec_b, result;
+    const int r_out = output_format.r;
+    const int b_out = output_format.b;
+    unsigned char alpha;
+
+    /* CYA */
+    if (!length)
+        return;
+
+    /* one pixel is handled outside of the loop */
+    length--;
+
+    /* setup for transforming 1st pixel */
+    vec_r = _mm_load_ss(&igtbl_r[src[0]]);
+    vec_g = _mm_load_ss(&igtbl_g[src[1]]);
+    vec_b = _mm_load_ss(&igtbl_b[src[2]]);
+    alpha = src[3];
+    src += 4;
+
+    /* transform all but final pixel */
+
+    for (i=0; i<length; i++)
+    {
+        /* position values from gamma tables */
+        vec_r = _mm_shuffle_ps(vec_r, vec_r, 0);
+        vec_g = _mm_shuffle_ps(vec_g, vec_g, 0);
+        vec_b = _mm_shuffle_ps(vec_b, vec_b, 0);
+
+        /* gamma * matrix */
+        vec_r = _mm_mul_ps(vec_r, mat0);
+        vec_g = _mm_mul_ps(vec_g, mat1);
+        vec_b = _mm_mul_ps(vec_b, mat2);
+
+        /* store alpha for this pixel; load alpha for next */
+        dest[3] = alpha;
+        alpha   = src[3];
+
+        /* crunch, crunch, crunch */
+        vec_r  = _mm_add_ps(vec_r, _mm_add_ps(vec_g, vec_b));
+        vec_r  = _mm_max_ps(min, vec_r);
+        vec_r  = _mm_min_ps(max, vec_r);
+        result = _mm_mul_ps(vec_r, scale);
+
+        /* store calc'd output tables indices */
+        _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(result));
+
+        /* load gamma values for next loop while store completes */
+        vec_r = _mm_load_ss(&igtbl_r[src[0]]);
+        vec_g = _mm_load_ss(&igtbl_g[src[1]]);
+        vec_b = _mm_load_ss(&igtbl_b[src[2]]);
+        src += 4;
+
+        /* use calc'd indices to output RGB values */
+        dest[r_out] = otdata_r[output[0]];
+        dest[1]     = otdata_g[output[1]];
+        dest[b_out] = otdata_b[output[2]];
+        dest += 4;
+    }
+
+    /* handle final (maybe only) pixel */
+
+    vec_r = _mm_shuffle_ps(vec_r, vec_r, 0);
+    vec_g = _mm_shuffle_ps(vec_g, vec_g, 0);
+    vec_b = _mm_shuffle_ps(vec_b, vec_b, 0);
+
+    vec_r = _mm_mul_ps(vec_r, mat0);
+    vec_g = _mm_mul_ps(vec_g, mat1);
+    vec_b = _mm_mul_ps(vec_b, mat2);
+
+    dest[3] = alpha;
+
+    vec_r  = _mm_add_ps(vec_r, _mm_add_ps(vec_g, vec_b));
+    vec_r  = _mm_max_ps(min, vec_r);
+    vec_r  = _mm_min_ps(max, vec_r);
+    result = _mm_mul_ps(vec_r, scale);
+
+    _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(result));
+
+    dest[r_out] = otdata_r[output[0]];
+    dest[1]     = otdata_g[output[1]];
+    dest[b_out] = otdata_b[output[2]];
+}
diff --git a/third_party/qcms/src/transform.c b/third_party/qcms/src/transform.c
new file mode 100644
index 0000000..08db142
--- /dev/null
+++ b/third_party/qcms/src/transform.c
@@ -0,0 +1,1369 @@
+/* vim: set ts=8 sw=8 noexpandtab: */
+//  qcms
+//  Copyright (C) 2009 Mozilla Corporation
+//  Copyright (C) 1998-2007 Marti Maria
+//
+// Permission is hereby granted, free of charge, to any person obtaining 
+// a copy of this software and associated documentation files (the "Software"), 
+// to deal in the Software without restriction, including without limitation 
+// the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+// and/or sell copies of the Software, and to permit persons to whom the Software 
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in 
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO 
+// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#include <stdlib.h>
+#include <math.h>
+#include <assert.h>
+#include <string.h> //memcpy
+#include "qcmsint.h"
+#include "chain.h"
+#include "matrix.h"
+#include "transform_util.h"
+
+/* for MSVC, GCC, Intel, and Sun compilers */
+#if defined(_M_IX86) || defined(__i386__) || defined(__i386) || defined(_M_AMD64) || defined(__x86_64__) || defined(__x86_64)
+#define X86
+#endif /* _M_IX86 || __i386__ || __i386 || _M_AMD64 || __x86_64__ || __x86_64 */
+
+// Build a White point, primary chromas transfer matrix from RGB to CIE XYZ
+// This is just an approximation, I am not handling all the non-linear
+// aspects of the RGB to XYZ process, and assumming that the gamma correction
+// has transitive property in the tranformation chain.
+//
+// the alghoritm:
+//
+//            - First I build the absolute conversion matrix using
+//              primaries in XYZ. This matrix is next inverted
+//            - Then I eval the source white point across this matrix
+//              obtaining the coeficients of the transformation
+//            - Then, I apply these coeficients to the original matrix
+static struct matrix build_RGB_to_XYZ_transfer_matrix(qcms_CIE_xyY white, qcms_CIE_xyYTRIPLE primrs)
+{
+	struct matrix primaries;
+	struct matrix primaries_invert;
+	struct matrix result;
+	struct vector white_point;
+	struct vector coefs;
+
+	double xn, yn;
+	double xr, yr;
+	double xg, yg;
+	double xb, yb;
+
+	xn = white.x;
+	yn = white.y;
+
+	if (yn == 0.0)
+		return matrix_invalid();
+
+	xr = primrs.red.x;
+	yr = primrs.red.y;
+	xg = primrs.green.x;
+	yg = primrs.green.y;
+	xb = primrs.blue.x;
+	yb = primrs.blue.y;
+
+	primaries.m[0][0] = xr;
+	primaries.m[0][1] = xg;
+	primaries.m[0][2] = xb;
+
+	primaries.m[1][0] = yr;
+	primaries.m[1][1] = yg;
+	primaries.m[1][2] = yb;
+
+	primaries.m[2][0] = 1 - xr - yr;
+	primaries.m[2][1] = 1 - xg - yg;
+	primaries.m[2][2] = 1 - xb - yb;
+	primaries.invalid = false;
+
+	white_point.v[0] = xn/yn;
+	white_point.v[1] = 1.;
+	white_point.v[2] = (1.0-xn-yn)/yn;
+
+	primaries_invert = matrix_invert(primaries);
+
+	coefs = matrix_eval(primaries_invert, white_point);
+
+	result.m[0][0] = coefs.v[0]*xr;
+	result.m[0][1] = coefs.v[1]*xg;
+	result.m[0][2] = coefs.v[2]*xb;
+
+	result.m[1][0] = coefs.v[0]*yr;
+	result.m[1][1] = coefs.v[1]*yg;
+	result.m[1][2] = coefs.v[2]*yb;
+
+	result.m[2][0] = coefs.v[0]*(1.-xr-yr);
+	result.m[2][1] = coefs.v[1]*(1.-xg-yg);
+	result.m[2][2] = coefs.v[2]*(1.-xb-yb);
+	result.invalid = primaries_invert.invalid;
+
+	return result;
+}
+
+struct CIE_XYZ {
+	double X;
+	double Y;
+	double Z;
+};
+
+/* CIE Illuminant D50 */
+static const struct CIE_XYZ D50_XYZ = {
+	0.9642,
+	1.0000,
+	0.8249
+};
+
+/* from lcms: xyY2XYZ()
+ * corresponds to argyll: icmYxy2XYZ() */
+static struct CIE_XYZ xyY2XYZ(qcms_CIE_xyY source)
+{
+	struct CIE_XYZ dest;
+	dest.X = (source.x / source.y) * source.Y;
+	dest.Y = source.Y;
+	dest.Z = ((1 - source.x - source.y) / source.y) * source.Y;
+	return dest;
+}
+
+/* from lcms: ComputeChromaticAdaption */
+// Compute chromatic adaption matrix using chad as cone matrix
+static struct matrix
+compute_chromatic_adaption(struct CIE_XYZ source_white_point,
+                           struct CIE_XYZ dest_white_point,
+                           struct matrix chad)
+{
+	struct matrix chad_inv;
+	struct vector cone_source_XYZ, cone_source_rgb;
+	struct vector cone_dest_XYZ, cone_dest_rgb;
+	struct matrix cone, tmp;
+
+	tmp = chad;
+	chad_inv = matrix_invert(tmp);
+
+	cone_source_XYZ.v[0] = source_white_point.X;
+	cone_source_XYZ.v[1] = source_white_point.Y;
+	cone_source_XYZ.v[2] = source_white_point.Z;
+
+	cone_dest_XYZ.v[0] = dest_white_point.X;
+	cone_dest_XYZ.v[1] = dest_white_point.Y;
+	cone_dest_XYZ.v[2] = dest_white_point.Z;
+
+	cone_source_rgb = matrix_eval(chad, cone_source_XYZ);
+	cone_dest_rgb   = matrix_eval(chad, cone_dest_XYZ);
+
+	cone.m[0][0] = cone_dest_rgb.v[0]/cone_source_rgb.v[0];
+	cone.m[0][1] = 0;
+	cone.m[0][2] = 0;
+	cone.m[1][0] = 0;
+	cone.m[1][1] = cone_dest_rgb.v[1]/cone_source_rgb.v[1];
+	cone.m[1][2] = 0;
+	cone.m[2][0] = 0;
+	cone.m[2][1] = 0;
+	cone.m[2][2] = cone_dest_rgb.v[2]/cone_source_rgb.v[2];
+	cone.invalid = false;
+
+	// Normalize
+	return matrix_multiply(chad_inv, matrix_multiply(cone, chad));
+}
+
+/* from lcms: cmsAdaptionMatrix */
+// Returns the final chrmatic adaptation from illuminant FromIll to Illuminant ToIll
+// Bradford is assumed
+static struct matrix
+adaption_matrix(struct CIE_XYZ source_illumination, struct CIE_XYZ target_illumination)
+{
+#if defined (_MSC_VER)
+#pragma warning(push)
+/* Disable double to float truncation warning 4305 */
+#pragma warning(disable:4305)
+#endif
+	struct matrix lam_rigg = {{ // Bradford matrix
+	                         {  0.8951,  0.2664, -0.1614 },
+	                         { -0.7502,  1.7135,  0.0367 },
+	                         {  0.0389, -0.0685,  1.0296 }
+	                         }};
+#if defined (_MSC_VER)
+/* Restore warnings */
+#pragma warning(pop)
+#endif
+	return compute_chromatic_adaption(source_illumination, target_illumination, lam_rigg);
+}
+
+/* from lcms: cmsAdaptMatrixToD50 */
+static struct matrix adapt_matrix_to_D50(struct matrix r, qcms_CIE_xyY source_white_pt)
+{
+	struct CIE_XYZ Dn;
+	struct matrix Bradford;
+
+	if (source_white_pt.y == 0.0)
+		return matrix_invalid();
+
+	Dn = xyY2XYZ(source_white_pt);
+
+	Bradford = adaption_matrix(Dn, D50_XYZ);
+	return matrix_multiply(Bradford, r);
+}
+
+qcms_bool set_rgb_colorants(qcms_profile *profile, qcms_CIE_xyY white_point, qcms_CIE_xyYTRIPLE primaries)
+{
+	struct matrix colorants;
+	colorants = build_RGB_to_XYZ_transfer_matrix(white_point, primaries);
+	colorants = adapt_matrix_to_D50(colorants, white_point);
+
+	if (colorants.invalid)
+		return false;
+
+	/* note: there's a transpose type of operation going on here */
+	profile->redColorant.X = double_to_s15Fixed16Number(colorants.m[0][0]);
+	profile->redColorant.Y = double_to_s15Fixed16Number(colorants.m[1][0]);
+	profile->redColorant.Z = double_to_s15Fixed16Number(colorants.m[2][0]);
+
+	profile->greenColorant.X = double_to_s15Fixed16Number(colorants.m[0][1]);
+	profile->greenColorant.Y = double_to_s15Fixed16Number(colorants.m[1][1]);
+	profile->greenColorant.Z = double_to_s15Fixed16Number(colorants.m[2][1]);
+
+	profile->blueColorant.X = double_to_s15Fixed16Number(colorants.m[0][2]);
+	profile->blueColorant.Y = double_to_s15Fixed16Number(colorants.m[1][2]);
+	profile->blueColorant.Z = double_to_s15Fixed16Number(colorants.m[2][2]);
+
+	return true;
+}
+
+#if 0
+static void qcms_transform_data_rgb_out_pow(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+{
+	const int r_out = output_format.r;
+	const int b_out = output_format.b;
+
+	int i;
+	float (*mat)[4] = transform->matrix;
+	for (i=0; i<length; i++) {
+		unsigned char device_r = *src++;
+		unsigned char device_g = *src++;
+		unsigned char device_b = *src++;
+
+		float linear_r = transform->input_gamma_table_r[device_r];
+		float linear_g = transform->input_gamma_table_g[device_g];
+		float linear_b = transform->input_gamma_table_b[device_b];
+
+		float out_linear_r = mat[0][0]*linear_r + mat[1][0]*linear_g + mat[2][0]*linear_b;
+		float out_linear_g = mat[0][1]*linear_r + mat[1][1]*linear_g + mat[2][1]*linear_b;
+		float out_linear_b = mat[0][2]*linear_r + mat[1][2]*linear_g + mat[2][2]*linear_b;
+
+		float out_device_r = pow(out_linear_r, transform->out_gamma_r);
+		float out_device_g = pow(out_linear_g, transform->out_gamma_g);
+		float out_device_b = pow(out_linear_b, transform->out_gamma_b);
+
+		dest[r_out] = clamp_u8(out_device_r*255);
+		dest[1]     = clamp_u8(out_device_g*255);
+		dest[b_out] = clamp_u8(out_device_b*255);
+		dest += 3;
+	}
+}
+#endif
+
+static void qcms_transform_data_gray_out_lut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+{
+	const int r_out = output_format.r;
+	const int b_out = output_format.b;
+
+	unsigned int i;
+	for (i = 0; i < length; i++) {
+		float out_device_r, out_device_g, out_device_b;
+		unsigned char device = *src++;
+
+		float linear = transform->input_gamma_table_gray[device];
+
+		out_device_r = lut_interp_linear(linear, transform->output_gamma_lut_r, transform->output_gamma_lut_r_length);
+		out_device_g = lut_interp_linear(linear, transform->output_gamma_lut_g, transform->output_gamma_lut_g_length);
+		out_device_b = lut_interp_linear(linear, transform->output_gamma_lut_b, transform->output_gamma_lut_b_length);
+
+		dest[r_out] = clamp_u8(out_device_r*255);
+		dest[1]     = clamp_u8(out_device_g*255);
+		dest[b_out] = clamp_u8(out_device_b*255);
+		dest += 3;
+	}
+}
+
+/* Alpha is not corrected.
+   A rationale for this is found in Alvy Ray's "Should Alpha Be Nonlinear If
+   RGB Is?" Tech Memo 17 (December 14, 1998).
+	See: ftp://ftp.alvyray.com/Acrobat/17_Nonln.pdf
+*/
+
+static void qcms_transform_data_graya_out_lut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+{
+	const int r_out = output_format.r;
+	const int b_out = output_format.b;
+
+	unsigned int i;
+	for (i = 0; i < length; i++) {
+		float out_device_r, out_device_g, out_device_b;
+		unsigned char device = *src++;
+		unsigned char alpha = *src++;
+
+		float linear = transform->input_gamma_table_gray[device];
+
+		out_device_r = lut_interp_linear(linear, transform->output_gamma_lut_r, transform->output_gamma_lut_r_length);
+		out_device_g = lut_interp_linear(linear, transform->output_gamma_lut_g, transform->output_gamma_lut_g_length);
+		out_device_b = lut_interp_linear(linear, transform->output_gamma_lut_b, transform->output_gamma_lut_b_length);
+
+		dest[r_out] = clamp_u8(out_device_r*255);
+		dest[1]     = clamp_u8(out_device_g*255);
+		dest[b_out] = clamp_u8(out_device_b*255);
+		dest[3]     = alpha;
+		dest += 4;
+	}
+}
+
+
+static void qcms_transform_data_gray_out_precache(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+{
+	const int r_out = output_format.r;
+	const int b_out = output_format.b;
+
+	unsigned int i;
+	for (i = 0; i < length; i++) {
+		unsigned char device = *src++;
+		uint16_t gray;
+
+		float linear = transform->input_gamma_table_gray[device];
+
+		/* we could round here... */
+		gray = linear * PRECACHE_OUTPUT_MAX;
+
+		dest[r_out] = transform->output_table_r->data[gray];
+		dest[1]     = transform->output_table_g->data[gray];
+		dest[b_out] = transform->output_table_b->data[gray];
+		dest += 3;
+	}
+}
+
+
+static void qcms_transform_data_graya_out_precache(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+{
+	const int r_out = output_format.r;
+	const int b_out = output_format.b;
+
+	unsigned int i;
+	for (i = 0; i < length; i++) {
+		unsigned char device = *src++;
+		unsigned char alpha = *src++;
+		uint16_t gray;
+
+		float linear = transform->input_gamma_table_gray[device];
+
+		/* we could round here... */
+		gray = linear * PRECACHE_OUTPUT_MAX;
+
+		dest[r_out] = transform->output_table_r->data[gray];
+		dest[1]     = transform->output_table_g->data[gray];
+		dest[b_out] = transform->output_table_b->data[gray];
+		dest[3]     = alpha;
+		dest += 4;
+	}
+}
+
+static void qcms_transform_data_rgb_out_lut_precache(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+{
+	const int r_out = output_format.r;
+	const int b_out = output_format.b;
+
+	unsigned int i;
+	float (*mat)[4] = transform->matrix;
+	for (i = 0; i < length; i++) {
+		unsigned char device_r = *src++;
+		unsigned char device_g = *src++;
+		unsigned char device_b = *src++;
+		uint16_t r, g, b;
+
+		float linear_r = transform->input_gamma_table_r[device_r];
+		float linear_g = transform->input_gamma_table_g[device_g];
+		float linear_b = transform->input_gamma_table_b[device_b];
+
+		float out_linear_r = mat[0][0]*linear_r + mat[1][0]*linear_g + mat[2][0]*linear_b;
+		float out_linear_g = mat[0][1]*linear_r + mat[1][1]*linear_g + mat[2][1]*linear_b;
+		float out_linear_b = mat[0][2]*linear_r + mat[1][2]*linear_g + mat[2][2]*linear_b;
+
+		out_linear_r = clamp_float(out_linear_r);
+		out_linear_g = clamp_float(out_linear_g);
+		out_linear_b = clamp_float(out_linear_b);
+
+		/* we could round here... */
+		r = out_linear_r * PRECACHE_OUTPUT_MAX;
+		g = out_linear_g * PRECACHE_OUTPUT_MAX;
+		b = out_linear_b * PRECACHE_OUTPUT_MAX;
+
+		dest[r_out] = transform->output_table_r->data[r];
+		dest[1]     = transform->output_table_g->data[g];
+		dest[b_out] = transform->output_table_b->data[b];
+		dest += 3;
+	}
+}
+
+static void qcms_transform_data_rgba_out_lut_precache(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+{
+	const int r_out = output_format.r;
+	const int b_out = output_format.b;
+
+	unsigned int i;
+	float (*mat)[4] = transform->matrix;
+	for (i = 0; i < length; i++) {
+		unsigned char device_r = *src++;
+		unsigned char device_g = *src++;
+		unsigned char device_b = *src++;
+		unsigned char alpha = *src++;
+		uint16_t r, g, b;
+
+		float linear_r = transform->input_gamma_table_r[device_r];
+		float linear_g = transform->input_gamma_table_g[device_g];
+		float linear_b = transform->input_gamma_table_b[device_b];
+
+		float out_linear_r = mat[0][0]*linear_r + mat[1][0]*linear_g + mat[2][0]*linear_b;
+		float out_linear_g = mat[0][1]*linear_r + mat[1][1]*linear_g + mat[2][1]*linear_b;
+		float out_linear_b = mat[0][2]*linear_r + mat[1][2]*linear_g + mat[2][2]*linear_b;
+
+		out_linear_r = clamp_float(out_linear_r);
+		out_linear_g = clamp_float(out_linear_g);
+		out_linear_b = clamp_float(out_linear_b);
+
+		/* we could round here... */
+		r = out_linear_r * PRECACHE_OUTPUT_MAX;
+		g = out_linear_g * PRECACHE_OUTPUT_MAX;
+		b = out_linear_b * PRECACHE_OUTPUT_MAX;
+
+		dest[r_out] = transform->output_table_r->data[r];
+		dest[1]     = transform->output_table_g->data[g];
+		dest[b_out] = transform->output_table_b->data[b];
+		dest[3]     = alpha;
+		dest += 4;
+	}
+}
+
+// Not used
+/* 
+static void qcms_transform_data_clut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+{
+	const int r_out = output_format.r;
+	const int b_out = output_format.b;
+
+	unsigned int i;
+	int xy_len = 1;
+	int x_len = transform->grid_size;
+	int len = x_len * x_len;
+	float* r_table = transform->r_clut;
+	float* g_table = transform->g_clut;
+	float* b_table = transform->b_clut;
+  
+	for (i = 0; i < length; i++) {
+		unsigned char in_r = *src++;
+		unsigned char in_g = *src++;
+		unsigned char in_b = *src++;
+		float linear_r = in_r/255.0f, linear_g=in_g/255.0f, linear_b = in_b/255.0f;
+
+		int x = floor(linear_r * (transform->grid_size-1));
+		int y = floor(linear_g * (transform->grid_size-1));
+		int z = floor(linear_b * (transform->grid_size-1));
+		int x_n = ceil(linear_r * (transform->grid_size-1));
+		int y_n = ceil(linear_g * (transform->grid_size-1));
+		int z_n = ceil(linear_b * (transform->grid_size-1));
+		float x_d = linear_r * (transform->grid_size-1) - x; 
+		float y_d = linear_g * (transform->grid_size-1) - y;
+		float z_d = linear_b * (transform->grid_size-1) - z; 
+
+		float r_x1 = lerp(CLU(r_table,x,y,z), CLU(r_table,x_n,y,z), x_d);
+		float r_x2 = lerp(CLU(r_table,x,y_n,z), CLU(r_table,x_n,y_n,z), x_d);
+		float r_y1 = lerp(r_x1, r_x2, y_d);
+		float r_x3 = lerp(CLU(r_table,x,y,z_n), CLU(r_table,x_n,y,z_n), x_d);
+		float r_x4 = lerp(CLU(r_table,x,y_n,z_n), CLU(r_table,x_n,y_n,z_n), x_d);
+		float r_y2 = lerp(r_x3, r_x4, y_d);
+		float clut_r = lerp(r_y1, r_y2, z_d);
+
+		float g_x1 = lerp(CLU(g_table,x,y,z), CLU(g_table,x_n,y,z), x_d);
+		float g_x2 = lerp(CLU(g_table,x,y_n,z), CLU(g_table,x_n,y_n,z), x_d);
+		float g_y1 = lerp(g_x1, g_x2, y_d);
+		float g_x3 = lerp(CLU(g_table,x,y,z_n), CLU(g_table,x_n,y,z_n), x_d);
+		float g_x4 = lerp(CLU(g_table,x,y_n,z_n), CLU(g_table,x_n,y_n,z_n), x_d);
+		float g_y2 = lerp(g_x3, g_x4, y_d);
+		float clut_g = lerp(g_y1, g_y2, z_d);
+
+		float b_x1 = lerp(CLU(b_table,x,y,z), CLU(b_table,x_n,y,z), x_d);
+		float b_x2 = lerp(CLU(b_table,x,y_n,z), CLU(b_table,x_n,y_n,z), x_d);
+		float b_y1 = lerp(b_x1, b_x2, y_d);
+		float b_x3 = lerp(CLU(b_table,x,y,z_n), CLU(b_table,x_n,y,z_n), x_d);
+		float b_x4 = lerp(CLU(b_table,x,y_n,z_n), CLU(b_table,x_n,y_n,z_n), x_d);
+		float b_y2 = lerp(b_x3, b_x4, y_d);
+		float clut_b = lerp(b_y1, b_y2, z_d);
+
+		dest[r_out] = clamp_u8(clut_r*255.0f);
+		dest[1]     = clamp_u8(clut_g*255.0f);
+		dest[b_out] = clamp_u8(clut_b*255.0f);
+		dest += 3;
+	}
+}
+*/
+
+// Using lcms' tetra interpolation algorithm.
+static void qcms_transform_data_tetra_clut_rgba(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+{
+	const int r_out = output_format.r;
+	const int b_out = output_format.b;
+
+	unsigned int i;
+	int xy_len = 1;
+	int x_len = transform->grid_size;
+	int len = x_len * x_len;
+	float* r_table = transform->r_clut;
+	float* g_table = transform->g_clut;
+	float* b_table = transform->b_clut;
+	float c0_r, c1_r, c2_r, c3_r;
+	float c0_g, c1_g, c2_g, c3_g;
+	float c0_b, c1_b, c2_b, c3_b;
+	float clut_r, clut_g, clut_b;
+	for (i = 0; i < length; i++) {
+		unsigned char in_r = *src++;
+		unsigned char in_g = *src++;
+		unsigned char in_b = *src++;
+		unsigned char in_a = *src++;
+		float linear_r = in_r/255.0f, linear_g=in_g/255.0f, linear_b = in_b/255.0f;
+
+		int x = floor(linear_r * (transform->grid_size-1));
+		int y = floor(linear_g * (transform->grid_size-1));
+		int z = floor(linear_b * (transform->grid_size-1));
+		int x_n = ceil(linear_r * (transform->grid_size-1));
+		int y_n = ceil(linear_g * (transform->grid_size-1));
+		int z_n = ceil(linear_b * (transform->grid_size-1));
+		float rx = linear_r * (transform->grid_size-1) - x; 
+		float ry = linear_g * (transform->grid_size-1) - y;
+		float rz = linear_b * (transform->grid_size-1) - z; 
+
+		c0_r = CLU(r_table, x, y, z);
+		c0_g = CLU(g_table, x, y, z);
+		c0_b = CLU(b_table, x, y, z);
+
+		if( rx >= ry ) {
+			if (ry >= rz) { //rx >= ry && ry >= rz
+				c1_r = CLU(r_table, x_n, y, z) - c0_r;
+				c2_r = CLU(r_table, x_n, y_n, z) - CLU(r_table, x_n, y, z);
+				c3_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y_n, z);
+				c1_g = CLU(g_table, x_n, y, z) - c0_g;
+				c2_g = CLU(g_table, x_n, y_n, z) - CLU(g_table, x_n, y, z);
+				c3_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y_n, z);
+				c1_b = CLU(b_table, x_n, y, z) - c0_b;
+				c2_b = CLU(b_table, x_n, y_n, z) - CLU(b_table, x_n, y, z);
+				c3_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y_n, z);
+			} else { 
+				if (rx >= rz) { //rx >= rz && rz >= ry
+					c1_r = CLU(r_table, x_n, y, z) - c0_r;
+					c2_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y, z_n);
+					c3_r = CLU(r_table, x_n, y, z_n) - CLU(r_table, x_n, y, z);
+					c1_g = CLU(g_table, x_n, y, z) - c0_g;
+					c2_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y, z_n);
+					c3_g = CLU(g_table, x_n, y, z_n) - CLU(g_table, x_n, y, z);
+					c1_b = CLU(b_table, x_n, y, z) - c0_b;
+					c2_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y, z_n);
+					c3_b = CLU(b_table, x_n, y, z_n) - CLU(b_table, x_n, y, z);
+				} else { //rz > rx && rx >= ry
+					c1_r = CLU(r_table, x_n, y, z_n) - CLU(r_table, x, y, z_n);
+					c2_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y, z_n);
+					c3_r = CLU(r_table, x, y, z_n) - c0_r;
+					c1_g = CLU(g_table, x_n, y, z_n) - CLU(g_table, x, y, z_n);
+					c2_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y, z_n);
+					c3_g = CLU(g_table, x, y, z_n) - c0_g;
+					c1_b = CLU(b_table, x_n, y, z_n) - CLU(b_table, x, y, z_n);
+					c2_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y, z_n);
+					c3_b = CLU(b_table, x, y, z_n) - c0_b;
+				}
+			}
+		} else {
+			if (rx >= rz) { //ry > rx && rx >= rz
+				c1_r = CLU(r_table, x_n, y_n, z) - CLU(r_table, x, y_n, z);
+				c2_r = CLU(r_table, x, y_n, z) - c0_r;
+				c3_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y_n, z);
+				c1_g = CLU(g_table, x_n, y_n, z) - CLU(g_table, x, y_n, z);
+				c2_g = CLU(g_table, x, y_n, z) - c0_g;
+				c3_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y_n, z);
+				c1_b = CLU(b_table, x_n, y_n, z) - CLU(b_table, x, y_n, z);
+				c2_b = CLU(b_table, x, y_n, z) - c0_b;
+				c3_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y_n, z);
+			} else {
+				if (ry >= rz) { //ry >= rz && rz > rx 
+					c1_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x, y_n, z_n);
+					c2_r = CLU(r_table, x, y_n, z) - c0_r;
+					c3_r = CLU(r_table, x, y_n, z_n) - CLU(r_table, x, y_n, z);
+					c1_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x, y_n, z_n);
+					c2_g = CLU(g_table, x, y_n, z) - c0_g;
+					c3_g = CLU(g_table, x, y_n, z_n) - CLU(g_table, x, y_n, z);
+					c1_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x, y_n, z_n);
+					c2_b = CLU(b_table, x, y_n, z) - c0_b;
+					c3_b = CLU(b_table, x, y_n, z_n) - CLU(b_table, x, y_n, z);
+				} else { //rz > ry && ry > rx
+					c1_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x, y_n, z_n);
+					c2_r = CLU(r_table, x, y_n, z_n) - CLU(r_table, x, y, z_n);
+					c3_r = CLU(r_table, x, y, z_n) - c0_r;
+					c1_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x, y_n, z_n);
+					c2_g = CLU(g_table, x, y_n, z_n) - CLU(g_table, x, y, z_n);
+					c3_g = CLU(g_table, x, y, z_n) - c0_g;
+					c1_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x, y_n, z_n);
+					c2_b = CLU(b_table, x, y_n, z_n) - CLU(b_table, x, y, z_n);
+					c3_b = CLU(b_table, x, y, z_n) - c0_b;
+				}
+			}
+		}
+				
+		clut_r = c0_r + c1_r*rx + c2_r*ry + c3_r*rz;
+		clut_g = c0_g + c1_g*rx + c2_g*ry + c3_g*rz;
+		clut_b = c0_b + c1_b*rx + c2_b*ry + c3_b*rz;
+
+		dest[r_out] = clamp_u8(clut_r*255.0f);
+		dest[1]     = clamp_u8(clut_g*255.0f);
+		dest[b_out] = clamp_u8(clut_b*255.0f);
+		dest[3]     = in_a;
+		dest += 4;
+	}
+}
+
+// Using lcms' tetra interpolation code.
+static void qcms_transform_data_tetra_clut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+{
+	const int r_out = output_format.r;
+	const int b_out = output_format.b;
+
+	unsigned int i;
+	int xy_len = 1;
+	int x_len = transform->grid_size;
+	int len = x_len * x_len;
+	float* r_table = transform->r_clut;
+	float* g_table = transform->g_clut;
+	float* b_table = transform->b_clut;
+	float c0_r, c1_r, c2_r, c3_r;
+	float c0_g, c1_g, c2_g, c3_g;
+	float c0_b, c1_b, c2_b, c3_b;
+	float clut_r, clut_g, clut_b;
+	for (i = 0; i < length; i++) {
+		unsigned char in_r = *src++;
+		unsigned char in_g = *src++;
+		unsigned char in_b = *src++;
+		float linear_r = in_r/255.0f, linear_g=in_g/255.0f, linear_b = in_b/255.0f;
+
+		int x = floor(linear_r * (transform->grid_size-1));
+		int y = floor(linear_g * (transform->grid_size-1));
+		int z = floor(linear_b * (transform->grid_size-1));
+		int x_n = ceil(linear_r * (transform->grid_size-1));
+		int y_n = ceil(linear_g * (transform->grid_size-1));
+		int z_n = ceil(linear_b * (transform->grid_size-1));
+		float rx = linear_r * (transform->grid_size-1) - x; 
+		float ry = linear_g * (transform->grid_size-1) - y;
+		float rz = linear_b * (transform->grid_size-1) - z; 
+
+		c0_r = CLU(r_table, x, y, z);
+		c0_g = CLU(g_table, x, y, z);
+		c0_b = CLU(b_table, x, y, z);
+
+		if( rx >= ry ) {
+			if (ry >= rz) { //rx >= ry && ry >= rz
+				c1_r = CLU(r_table, x_n, y, z) - c0_r;
+				c2_r = CLU(r_table, x_n, y_n, z) - CLU(r_table, x_n, y, z);
+				c3_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y_n, z);
+				c1_g = CLU(g_table, x_n, y, z) - c0_g;
+				c2_g = CLU(g_table, x_n, y_n, z) - CLU(g_table, x_n, y, z);
+				c3_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y_n, z);
+				c1_b = CLU(b_table, x_n, y, z) - c0_b;
+				c2_b = CLU(b_table, x_n, y_n, z) - CLU(b_table, x_n, y, z);
+				c3_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y_n, z);
+			} else { 
+				if (rx >= rz) { //rx >= rz && rz >= ry
+					c1_r = CLU(r_table, x_n, y, z) - c0_r;
+					c2_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y, z_n);
+					c3_r = CLU(r_table, x_n, y, z_n) - CLU(r_table, x_n, y, z);
+					c1_g = CLU(g_table, x_n, y, z) - c0_g;
+					c2_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y, z_n);
+					c3_g = CLU(g_table, x_n, y, z_n) - CLU(g_table, x_n, y, z);
+					c1_b = CLU(b_table, x_n, y, z) - c0_b;
+					c2_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y, z_n);
+					c3_b = CLU(b_table, x_n, y, z_n) - CLU(b_table, x_n, y, z);
+				} else { //rz > rx && rx >= ry
+					c1_r = CLU(r_table, x_n, y, z_n) - CLU(r_table, x, y, z_n);
+					c2_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y, z_n);
+					c3_r = CLU(r_table, x, y, z_n) - c0_r;
+					c1_g = CLU(g_table, x_n, y, z_n) - CLU(g_table, x, y, z_n);
+					c2_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y, z_n);
+					c3_g = CLU(g_table, x, y, z_n) - c0_g;
+					c1_b = CLU(b_table, x_n, y, z_n) - CLU(b_table, x, y, z_n);
+					c2_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y, z_n);
+					c3_b = CLU(b_table, x, y, z_n) - c0_b;
+				}
+			}
+		} else {
+			if (rx >= rz) { //ry > rx && rx >= rz
+				c1_r = CLU(r_table, x_n, y_n, z) - CLU(r_table, x, y_n, z);
+				c2_r = CLU(r_table, x, y_n, z) - c0_r;
+				c3_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x_n, y_n, z);
+				c1_g = CLU(g_table, x_n, y_n, z) - CLU(g_table, x, y_n, z);
+				c2_g = CLU(g_table, x, y_n, z) - c0_g;
+				c3_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x_n, y_n, z);
+				c1_b = CLU(b_table, x_n, y_n, z) - CLU(b_table, x, y_n, z);
+				c2_b = CLU(b_table, x, y_n, z) - c0_b;
+				c3_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x_n, y_n, z);
+			} else {
+				if (ry >= rz) { //ry >= rz && rz > rx 
+					c1_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x, y_n, z_n);
+					c2_r = CLU(r_table, x, y_n, z) - c0_r;
+					c3_r = CLU(r_table, x, y_n, z_n) - CLU(r_table, x, y_n, z);
+					c1_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x, y_n, z_n);
+					c2_g = CLU(g_table, x, y_n, z) - c0_g;
+					c3_g = CLU(g_table, x, y_n, z_n) - CLU(g_table, x, y_n, z);
+					c1_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x, y_n, z_n);
+					c2_b = CLU(b_table, x, y_n, z) - c0_b;
+					c3_b = CLU(b_table, x, y_n, z_n) - CLU(b_table, x, y_n, z);
+				} else { //rz > ry && ry > rx
+					c1_r = CLU(r_table, x_n, y_n, z_n) - CLU(r_table, x, y_n, z_n);
+					c2_r = CLU(r_table, x, y_n, z_n) - CLU(r_table, x, y, z_n);
+					c3_r = CLU(r_table, x, y, z_n) - c0_r;
+					c1_g = CLU(g_table, x_n, y_n, z_n) - CLU(g_table, x, y_n, z_n);
+					c2_g = CLU(g_table, x, y_n, z_n) - CLU(g_table, x, y, z_n);
+					c3_g = CLU(g_table, x, y, z_n) - c0_g;
+					c1_b = CLU(b_table, x_n, y_n, z_n) - CLU(b_table, x, y_n, z_n);
+					c2_b = CLU(b_table, x, y_n, z_n) - CLU(b_table, x, y, z_n);
+					c3_b = CLU(b_table, x, y, z_n) - c0_b;
+				}
+			}
+		}
+				
+		clut_r = c0_r + c1_r*rx + c2_r*ry + c3_r*rz;
+		clut_g = c0_g + c1_g*rx + c2_g*ry + c3_g*rz;
+		clut_b = c0_b + c1_b*rx + c2_b*ry + c3_b*rz;
+
+		dest[r_out] = clamp_u8(clut_r*255.0f);
+		dest[1]     = clamp_u8(clut_g*255.0f);
+		dest[b_out] = clamp_u8(clut_b*255.0f);
+		dest += 3;
+	}
+}
+
+static void qcms_transform_data_rgb_out_lut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+{
+	const int r_out = output_format.r;
+	const int b_out = output_format.b;
+
+	unsigned int i;
+	float (*mat)[4] = transform->matrix;
+	for (i = 0; i < length; i++) {
+		unsigned char device_r = *src++;
+		unsigned char device_g = *src++;
+		unsigned char device_b = *src++;
+		float out_device_r, out_device_g, out_device_b;
+
+		float linear_r = transform->input_gamma_table_r[device_r];
+		float linear_g = transform->input_gamma_table_g[device_g];
+		float linear_b = transform->input_gamma_table_b[device_b];
+
+		float out_linear_r = mat[0][0]*linear_r + mat[1][0]*linear_g + mat[2][0]*linear_b;
+		float out_linear_g = mat[0][1]*linear_r + mat[1][1]*linear_g + mat[2][1]*linear_b;
+		float out_linear_b = mat[0][2]*linear_r + mat[1][2]*linear_g + mat[2][2]*linear_b;
+
+		out_linear_r = clamp_float(out_linear_r);
+		out_linear_g = clamp_float(out_linear_g);
+		out_linear_b = clamp_float(out_linear_b);
+
+		out_device_r = lut_interp_linear(out_linear_r, 
+				transform->output_gamma_lut_r, transform->output_gamma_lut_r_length);
+		out_device_g = lut_interp_linear(out_linear_g, 
+				transform->output_gamma_lut_g, transform->output_gamma_lut_g_length);
+		out_device_b = lut_interp_linear(out_linear_b, 
+				transform->output_gamma_lut_b, transform->output_gamma_lut_b_length);
+
+		dest[r_out] = clamp_u8(out_device_r*255);
+		dest[1]     = clamp_u8(out_device_g*255);
+		dest[b_out] = clamp_u8(out_device_b*255);
+		dest += 3;
+	}
+}
+
+static void qcms_transform_data_rgba_out_lut(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+{
+	const int r_out = output_format.r;
+	const int b_out = output_format.b;
+
+	unsigned int i;
+	float (*mat)[4] = transform->matrix;
+	for (i = 0; i < length; i++) {
+		unsigned char device_r = *src++;
+		unsigned char device_g = *src++;
+		unsigned char device_b = *src++;
+		unsigned char alpha = *src++;
+		float out_device_r, out_device_g, out_device_b;
+
+		float linear_r = transform->input_gamma_table_r[device_r];
+		float linear_g = transform->input_gamma_table_g[device_g];
+		float linear_b = transform->input_gamma_table_b[device_b];
+
+		float out_linear_r = mat[0][0]*linear_r + mat[1][0]*linear_g + mat[2][0]*linear_b;
+		float out_linear_g = mat[0][1]*linear_r + mat[1][1]*linear_g + mat[2][1]*linear_b;
+		float out_linear_b = mat[0][2]*linear_r + mat[1][2]*linear_g + mat[2][2]*linear_b;
+
+		out_linear_r = clamp_float(out_linear_r);
+		out_linear_g = clamp_float(out_linear_g);
+		out_linear_b = clamp_float(out_linear_b);
+
+		out_device_r = lut_interp_linear(out_linear_r, 
+				transform->output_gamma_lut_r, transform->output_gamma_lut_r_length);
+		out_device_g = lut_interp_linear(out_linear_g, 
+				transform->output_gamma_lut_g, transform->output_gamma_lut_g_length);
+		out_device_b = lut_interp_linear(out_linear_b, 
+				transform->output_gamma_lut_b, transform->output_gamma_lut_b_length);
+
+		dest[r_out] = clamp_u8(out_device_r*255);
+		dest[1]     = clamp_u8(out_device_g*255);
+		dest[b_out] = clamp_u8(out_device_b*255);
+		dest[3]     = alpha;
+		dest += 4;
+	}
+}
+
+#if 0
+static void qcms_transform_data_rgb_out_linear(qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, qcms_format_type output_format)
+{
+	const int r_out = output_format.r;
+	const int b_out = output_format.b;
+
+	int i;
+	float (*mat)[4] = transform->matrix;
+	for (i = 0; i < length; i++) {
+		unsigned char device_r = *src++;
+		unsigned char device_g = *src++;
+		unsigned char device_b = *src++;
+
+		float linear_r = transform->input_gamma_table_r[device_r];
+		float linear_g = transform->input_gamma_table_g[device_g];
+		float linear_b = transform->input_gamma_table_b[device_b];
+
+		float out_linear_r = mat[0][0]*linear_r + mat[1][0]*linear_g + mat[2][0]*linear_b;
+		float out_linear_g = mat[0][1]*linear_r + mat[1][1]*linear_g + mat[2][1]*linear_b;
+		float out_linear_b = mat[0][2]*linear_r + mat[1][2]*linear_g + mat[2][2]*linear_b;
+
+		dest[r_out] = clamp_u8(out_linear_r*255);
+		dest[1]     = clamp_u8(out_linear_g*255);
+		dest[b_out] = clamp_u8(out_linear_b*255);
+		dest += 3;
+	}
+}
+#endif
+
+/*
+ * If users create and destroy objects on different threads, even if the same
+ * objects aren't used on different threads at the same time, we can still run
+ * in to trouble with refcounts if they aren't atomic.
+ *
+ * This can lead to us prematurely deleting the precache if threads get unlucky
+ * and write the wrong value to the ref count.
+ */
+static struct precache_output *precache_reference(struct precache_output *p)
+{
+	qcms_atomic_increment(p->ref_count);
+	return p;
+}
+
+static struct precache_output *precache_create()
+{
+	struct precache_output *p = malloc(sizeof(struct precache_output));
+	if (p)
+		p->ref_count = 1;
+	return p;
+}
+
+void precache_release(struct precache_output *p)
+{
+	if (qcms_atomic_decrement(p->ref_count) == 0) {
+		free(p);
+	}
+}
+
+#ifdef HAVE_POSIX_MEMALIGN
+static qcms_transform *transform_alloc(void)
+{
+	qcms_transform *t;
+	if (!posix_memalign(&t, 16, sizeof(*t))) {
+		return t;
+	} else {
+		return NULL;
+	}
+}
+static void transform_free(qcms_transform *t)
+{
+	free(t);
+}
+#else
+static qcms_transform *transform_alloc(void)
+{
+	/* transform needs to be aligned on a 16byte boundrary */
+	char *original_block = calloc(sizeof(qcms_transform) + sizeof(void*) + 16, 1);
+	/* make room for a pointer to the block returned by calloc */
+	void *transform_start = original_block + sizeof(void*);
+	/* align transform_start */
+	qcms_transform *transform_aligned = (qcms_transform*)(((uintptr_t)transform_start + 15) & ~0xf);
+
+	/* store a pointer to the block returned by calloc so that we can free it later */
+	void **(original_block_ptr) = (void**)transform_aligned;
+	if (!original_block)
+		return NULL;
+	original_block_ptr--;
+	*original_block_ptr = original_block;
+
+	return transform_aligned;
+}
+static void transform_free(qcms_transform *t)
+{
+	/* get at the pointer to the unaligned block returned by calloc */
+	void **p = (void**)t;
+	p--;
+	free(*p);
+}
+#endif
+
+void qcms_transform_release(qcms_transform *t)
+{
+	/* ensure we only free the gamma tables once even if there are
+	 * multiple references to the same data */
+
+	if (t->output_table_r)
+		precache_release(t->output_table_r);
+	if (t->output_table_g)
+		precache_release(t->output_table_g);
+	if (t->output_table_b)
+		precache_release(t->output_table_b);
+
+	free(t->input_gamma_table_r);
+	if (t->input_gamma_table_g != t->input_gamma_table_r)
+		free(t->input_gamma_table_g);
+	if (t->input_gamma_table_g != t->input_gamma_table_r &&
+	    t->input_gamma_table_g != t->input_gamma_table_b)
+		free(t->input_gamma_table_b);
+
+	free(t->input_gamma_table_gray);
+
+	free(t->output_gamma_lut_r);
+	free(t->output_gamma_lut_g);
+	free(t->output_gamma_lut_b);
+
+	transform_free(t);
+}
+
+#ifdef X86
+// Determine if we can build with SSE2 (this was partly copied from jmorecfg.h in
+// mozilla/jpeg)
+ // -------------------------------------------------------------------------
+#if defined(_M_IX86) && defined(_MSC_VER)
+#define HAS_CPUID
+/* Get us a CPUID function. Avoid clobbering EBX because sometimes it's the PIC
+   register - I'm not sure if that ever happens on windows, but cpuid isn't
+   on the critical path so we just preserve the register to be safe and to be
+   consistent with the non-windows version. */
+static void cpuid(uint32_t fxn, uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d) {
+       uint32_t a_, b_, c_, d_;
+       __asm {
+              xchg   ebx, esi
+              mov    eax, fxn
+              cpuid
+              mov    a_, eax
+              mov    b_, ebx
+              mov    c_, ecx
+              mov    d_, edx
+              xchg   ebx, esi
+       }
+       *a = a_;
+       *b = b_;
+       *c = c_;
+       *d = d_;
+}
+#elif (defined(__GNUC__) || defined(__SUNPRO_C)) && (defined(__i386__) || defined(__i386))
+#define HAS_CPUID
+/* Get us a CPUID function. We can't use ebx because it's the PIC register on
+   some platforms, so we use ESI instead and save ebx to avoid clobbering it. */
+static void cpuid(uint32_t fxn, uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d) {
+
+	uint32_t a_, b_, c_, d_;
+       __asm__ __volatile__ ("xchgl %%ebx, %%esi; cpuid; xchgl %%ebx, %%esi;" 
+                             : "=a" (a_), "=S" (b_), "=c" (c_), "=d" (d_) : "a" (fxn));
+	   *a = a_;
+	   *b = b_;
+	   *c = c_;
+	   *d = d_;
+}
+#endif
+
+// -------------------------Runtime SSEx Detection-----------------------------
+
+/* MMX is always supported per
+ *  Gecko v1.9.1 minimum CPU requirements */
+#define SSE1_EDX_MASK (1UL << 25)
+#define SSE2_EDX_MASK (1UL << 26)
+#define SSE3_ECX_MASK (1UL <<  0)
+
+static int sse_version_available(void)
+{
+#if defined(__x86_64__) || defined(__x86_64) || defined(_M_AMD64)
+	/* we know at build time that 64-bit CPUs always have SSE2
+	 * this tells the compiler that non-SSE2 branches will never be
+	 * taken (i.e. OK to optimze away the SSE1 and non-SIMD code */
+	return 2;
+#elif defined(HAS_CPUID)
+	static int sse_version = -1;
+	uint32_t a, b, c, d;
+	uint32_t function = 0x00000001;
+
+	if (sse_version == -1) {
+		sse_version = 0;
+		cpuid(function, &a, &b, &c, &d);
+		if (c & SSE3_ECX_MASK)
+			sse_version = 3;
+		else if (d & SSE2_EDX_MASK)
+			sse_version = 2;
+		else if (d & SSE1_EDX_MASK)
+			sse_version = 1;
+	}
+
+	return sse_version;
+#else
+	return 0;
+#endif
+}
+#endif
+
+static const struct matrix bradford_matrix = {{	{ 0.8951f, 0.2664f,-0.1614f},
+						{-0.7502f, 1.7135f, 0.0367f},
+						{ 0.0389f,-0.0685f, 1.0296f}}, 
+						false};
+
+static const struct matrix bradford_matrix_inv = {{ { 0.9869929f,-0.1470543f, 0.1599627f},
+						    { 0.4323053f, 0.5183603f, 0.0492912f},
+						    {-0.0085287f, 0.0400428f, 0.9684867f}}, 
+						    false};
+
+// See ICCv4 E.3
+struct matrix compute_whitepoint_adaption(float X, float Y, float Z) {
+	float p = (0.96422f*bradford_matrix.m[0][0] + 1.000f*bradford_matrix.m[1][0] + 0.82521f*bradford_matrix.m[2][0]) /
+		  (X*bradford_matrix.m[0][0]      + Y*bradford_matrix.m[1][0]      + Z*bradford_matrix.m[2][0]     );
+	float y = (0.96422f*bradford_matrix.m[0][1] + 1.000f*bradford_matrix.m[1][1] + 0.82521f*bradford_matrix.m[2][1]) /
+		  (X*bradford_matrix.m[0][1]      + Y*bradford_matrix.m[1][1]      + Z*bradford_matrix.m[2][1]     );
+	float b = (0.96422f*bradford_matrix.m[0][2] + 1.000f*bradford_matrix.m[1][2] + 0.82521f*bradford_matrix.m[2][2]) /
+		  (X*bradford_matrix.m[0][2]      + Y*bradford_matrix.m[1][2]      + Z*bradford_matrix.m[2][2]     );
+	struct matrix white_adaption = {{ {p,0,0}, {0,y,0}, {0,0,b}}, false};
+	return matrix_multiply( bradford_matrix_inv, matrix_multiply(white_adaption, bradford_matrix) );
+}
+
+void qcms_profile_precache_output_transform(qcms_profile *profile)
+{
+	/* we only support precaching on rgb profiles */
+	if (profile->color_space != RGB_SIGNATURE)
+		return;
+
+	if (qcms_supports_iccv4) {
+		/* don't precache since we will use the B2A LUT */
+		if (profile->B2A0)
+			return;
+
+		/* don't precache since we will use the mBA LUT */
+		if (profile->mBA)
+			return;
+	}
+
+	/* don't precache if we do not have the TRC curves */
+	if (!profile->redTRC || !profile->greenTRC || !profile->blueTRC)
+		return;
+
+	if (!profile->output_table_r) {
+		profile->output_table_r = precache_create();
+		if (profile->output_table_r &&
+				!compute_precache(profile->redTRC, profile->output_table_r->data)) {
+			precache_release(profile->output_table_r);
+			profile->output_table_r = NULL;
+		}
+	}
+	if (!profile->output_table_g) {
+		profile->output_table_g = precache_create();
+		if (profile->output_table_g &&
+				!compute_precache(profile->greenTRC, profile->output_table_g->data)) {
+			precache_release(profile->output_table_g);
+			profile->output_table_g = NULL;
+		}
+	}
+	if (!profile->output_table_b) {
+		profile->output_table_b = precache_create();
+		if (profile->output_table_b &&
+				!compute_precache(profile->blueTRC, profile->output_table_b->data)) {
+			precache_release(profile->output_table_b);
+			profile->output_table_b = NULL;
+		}
+	}
+}
+
+/* Replace the current transformation with a LUT transformation using a given number of sample points */
+qcms_transform* qcms_transform_precacheLUT_float(qcms_transform *transform, qcms_profile *in, qcms_profile *out, 
+                                                 int samples, qcms_data_type in_type)
+{
+	/* The range between which 2 consecutive sample points can be used to interpolate */
+	uint16_t x,y,z;
+	uint32_t l;
+	uint32_t lutSize = 3 * samples * samples * samples;
+	float* src = NULL;
+	float* dest = NULL;
+	float* lut = NULL;
+
+	src = malloc(lutSize*sizeof(float));
+	dest = malloc(lutSize*sizeof(float));
+
+	if (src && dest) {
+		/* Prepare a list of points we want to sample */
+		l = 0;
+		for (x = 0; x < samples; x++) {
+			for (y = 0; y < samples; y++) {
+				for (z = 0; z < samples; z++) {
+					src[l++] = x / (float)(samples-1);
+					src[l++] = y / (float)(samples-1);
+					src[l++] = z / (float)(samples-1);
+				}
+			}
+		}
+
+		lut = qcms_chain_transform(in, out, src, dest, lutSize);
+		if (lut) {
+			transform->r_clut = &lut[0];
+			transform->g_clut = &lut[1];
+			transform->b_clut = &lut[2];
+			transform->grid_size = samples;
+			if (in_type == QCMS_DATA_RGBA_8) {
+				transform->transform_fn = qcms_transform_data_tetra_clut_rgba;
+			} else {
+				transform->transform_fn = qcms_transform_data_tetra_clut;
+			}
+		}
+	}
+
+
+	//XXX: qcms_modular_transform_data may return either the src or dest buffer. If so it must not be free-ed
+	if (src && lut != src) {
+		free(src);
+	}
+	if (dest && lut != dest) {
+		free(dest);
+	}
+
+	if (lut == NULL) {
+		return NULL;
+	}
+	return transform;
+}
+
+#define NO_MEM_TRANSFORM NULL
+
+qcms_transform* qcms_transform_create(
+		qcms_profile *in, qcms_data_type in_type,
+		qcms_profile *out, qcms_data_type out_type,
+		qcms_intent intent)
+{
+	bool precache = false;
+
+        qcms_transform *transform = transform_alloc();
+        if (!transform) {
+		return NULL;
+	}
+	if (out_type != QCMS_DATA_RGB_8 &&
+                out_type != QCMS_DATA_RGBA_8) {
+            assert(0 && "output type");
+	    transform_free(transform);
+            return NULL;
+        }
+
+	if (out->output_table_r &&
+			out->output_table_g &&
+			out->output_table_b) {
+		precache = true;
+	}
+
+	if (qcms_supports_iccv4 && (in->A2B0 || out->B2A0 || in->mAB || out->mAB)) {
+		// Precache the transformation to a CLUT 33x33x33 in size.
+		// 33 is used by many profiles and works well in pratice. 
+		// This evenly divides 256 into blocks of 8x8x8.
+		// TODO For transforming small data sets of about 200x200 or less
+		// precaching should be avoided.
+		qcms_transform *result = qcms_transform_precacheLUT_float(transform, in, out, 33, in_type);
+		if (!result) {
+            		assert(0 && "precacheLUT failed");
+			transform_free(transform);
+			return NULL;
+		}
+		return result;
+	}
+
+	if (precache) {
+		transform->output_table_r = precache_reference(out->output_table_r);
+		transform->output_table_g = precache_reference(out->output_table_g);
+		transform->output_table_b = precache_reference(out->output_table_b);
+	} else {
+		if (!out->redTRC || !out->greenTRC || !out->blueTRC) {
+			qcms_transform_release(transform);
+			return NO_MEM_TRANSFORM;
+		}
+		build_output_lut(out->redTRC, &transform->output_gamma_lut_r, &transform->output_gamma_lut_r_length);
+		build_output_lut(out->greenTRC, &transform->output_gamma_lut_g, &transform->output_gamma_lut_g_length);
+		build_output_lut(out->blueTRC, &transform->output_gamma_lut_b, &transform->output_gamma_lut_b_length);
+		if (!transform->output_gamma_lut_r || !transform->output_gamma_lut_g || !transform->output_gamma_lut_b) {
+			qcms_transform_release(transform);
+			return NO_MEM_TRANSFORM;
+		}
+	}
+
+        if (in->color_space == RGB_SIGNATURE) {
+		struct matrix in_matrix, out_matrix, result;
+
+		if (in_type != QCMS_DATA_RGB_8 &&
+                    in_type != QCMS_DATA_RGBA_8){
+                	assert(0 && "input type");
+			transform_free(transform);
+                	return NULL;
+            	}
+		if (precache) {
+#if defined(SSE2_ENABLE) && defined(X86)
+		    if (sse_version_available() >= 2) {
+			    if (in_type == QCMS_DATA_RGB_8)
+				    transform->transform_fn = qcms_transform_data_rgb_out_lut_sse2;
+			    else
+				    transform->transform_fn = qcms_transform_data_rgba_out_lut_sse2;
+
+#if defined(SSE2_ENABLE) && !(defined(_MSC_VER) && defined(_M_AMD64))
+                    /* Microsoft Compiler for x64 doesn't support MMX.
+                     * SSE code uses MMX so that we disable on x64 */
+		    } else
+		    if (sse_version_available() >= 1) {
+			    if (in_type == QCMS_DATA_RGB_8)
+				    transform->transform_fn = qcms_transform_data_rgb_out_lut_sse1;
+			    else
+				    transform->transform_fn = qcms_transform_data_rgba_out_lut_sse1;
+#endif
+		    } else
+#endif
+			{
+				if (in_type == QCMS_DATA_RGB_8)
+					transform->transform_fn = qcms_transform_data_rgb_out_lut_precache;
+				else
+					transform->transform_fn = qcms_transform_data_rgba_out_lut_precache;
+			}
+		} else {
+			if (in_type == QCMS_DATA_RGB_8)
+				transform->transform_fn = qcms_transform_data_rgb_out_lut;
+			else
+				transform->transform_fn = qcms_transform_data_rgba_out_lut;
+		}
+
+		//XXX: avoid duplicating tables if we can
+		transform->input_gamma_table_r = build_input_gamma_table(in->redTRC);
+		transform->input_gamma_table_g = build_input_gamma_table(in->greenTRC);
+		transform->input_gamma_table_b = build_input_gamma_table(in->blueTRC);
+		if (!transform->input_gamma_table_r || !transform->input_gamma_table_g || !transform->input_gamma_table_b) {
+			qcms_transform_release(transform);
+			return NO_MEM_TRANSFORM;
+		}
+
+
+		/* build combined colorant matrix */
+		in_matrix = build_colorant_matrix(in);
+		out_matrix = build_colorant_matrix(out);
+		out_matrix = matrix_invert(out_matrix);
+		if (out_matrix.invalid) {
+			qcms_transform_release(transform);
+			return NULL;
+		}
+		result = matrix_multiply(out_matrix, in_matrix);
+
+		/* store the results in column major mode
+		 * this makes doing the multiplication with sse easier */
+		transform->matrix[0][0] = result.m[0][0];
+		transform->matrix[1][0] = result.m[0][1];
+		transform->matrix[2][0] = result.m[0][2];
+		transform->matrix[0][1] = result.m[1][0];
+		transform->matrix[1][1] = result.m[1][1];
+		transform->matrix[2][1] = result.m[1][2];
+		transform->matrix[0][2] = result.m[2][0];
+		transform->matrix[1][2] = result.m[2][1];
+		transform->matrix[2][2] = result.m[2][2];
+
+	} else if (in->color_space == GRAY_SIGNATURE) {
+		if (in_type != QCMS_DATA_GRAY_8 &&
+				in_type != QCMS_DATA_GRAYA_8){
+			assert(0 && "input type");
+			transform_free(transform);
+			return NULL;
+		}
+
+		transform->input_gamma_table_gray = build_input_gamma_table(in->grayTRC);
+		if (!transform->input_gamma_table_gray) {
+			qcms_transform_release(transform);
+			return NO_MEM_TRANSFORM;
+		}
+
+		if (precache) {
+			if (in_type == QCMS_DATA_GRAY_8) {
+				transform->transform_fn = qcms_transform_data_gray_out_precache;
+			} else {
+				transform->transform_fn = qcms_transform_data_graya_out_precache;
+			}
+		} else {
+			if (in_type == QCMS_DATA_GRAY_8) {
+				transform->transform_fn = qcms_transform_data_gray_out_lut;
+			} else {
+				transform->transform_fn = qcms_transform_data_graya_out_lut;
+			}
+		}
+	} else {
+		assert(0 && "unexpected colorspace");
+		transform_free(transform);
+		return NULL;
+	}
+	return transform;
+}
+
+/* __force_align_arg_pointer__ is an x86-only attribute, and gcc/clang warns on unused
+ * attributes. Don't use this on ARM or AMD64. __has_attribute can detect the presence
+ * of the attribute but is currently only supported by clang */
+#if defined(__has_attribute)
+#define HAS_FORCE_ALIGN_ARG_POINTER __has_attribute(__force_align_arg_pointer__)
+#elif defined(__GNUC__) && !defined(__x86_64__) && !defined(__amd64__) && !defined(__arm__) && !defined(__mips__)
+#define HAS_FORCE_ALIGN_ARG_POINTER 1
+#else
+#define HAS_FORCE_ALIGN_ARG_POINTER 0
+#endif
+
+#if HAS_FORCE_ALIGN_ARG_POINTER
+/* we need this to avoid crashes when gcc assumes the stack is 128bit aligned */
+__attribute__((__force_align_arg_pointer__))
+#endif
+void qcms_transform_data(qcms_transform *transform, void *src, void *dest, size_t length)
+{
+	static const struct _qcms_format_type output_rgbx = { 0, 2 };
+
+	transform->transform_fn(transform, src, dest, length, output_rgbx);
+}
+
+void qcms_transform_data_type(qcms_transform *transform, void *src, void *dest, size_t length, qcms_output_type type)
+{
+	static const struct _qcms_format_type output_rgbx = { 0, 2 };
+	static const struct _qcms_format_type output_bgrx = { 2, 0 };
+
+	transform->transform_fn(transform, src, dest, length, type == QCMS_OUTPUT_BGRX ? output_bgrx : output_rgbx);
+}
+
+qcms_bool qcms_supports_iccv4;
+void qcms_enable_iccv4()
+{
+	qcms_supports_iccv4 = true;
+}
diff --git a/third_party/qcms/src/transform_util.c b/third_party/qcms/src/transform_util.c
new file mode 100644
index 0000000..f4338b2
--- /dev/null
+++ b/third_party/qcms/src/transform_util.c
@@ -0,0 +1,577 @@
+//  qcms
+//  Copyright (C) 2009 Mozilla Foundation
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the Software
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#define _ISOC99_SOURCE  /* for INFINITY */
+
+#include <math.h>
+#include <assert.h>
+#include <string.h> //memcpy
+#include "qcmsint.h"
+#include "transform_util.h"
+#include "matrix.h"
+
+#if !defined(INFINITY)
+#define INFINITY HUGE_VAL
+#endif
+
+#define PARAMETRIC_CURVE_TYPE 0x70617261 //'para'
+
+/* value must be a value between 0 and 1 */
+//XXX: is the above a good restriction to have?
+float lut_interp_linear(double value, uint16_t *table, size_t length)
+{
+	int upper, lower;
+	value = value * (length - 1); // scale to length of the array
+	upper = ceil(value);
+	lower = floor(value);
+	//XXX: can we be more performant here?
+	value = table[upper]*(1. - (upper - value)) + table[lower]*(upper - value);
+	/* scale the value */
+	return value * (1./65535.);
+}
+
+/* same as above but takes and returns a uint16_t value representing a range from 0..1 */
+uint16_t lut_interp_linear16(uint16_t input_value, uint16_t *table, size_t length)
+{
+	/* Start scaling input_value to the length of the array: 65535*(length-1).
+	 * We'll divide out the 65535 next */
+	uintptr_t value = (input_value * (length - 1));
+	uint32_t upper = (value + 65534) / 65535; /* equivalent to ceil(value/65535) */
+	uint32_t lower = value / 65535;           /* equivalent to floor(value/65535) */
+	/* interp is the distance from upper to value scaled to 0..65535 */
+	uint32_t interp = value % 65535;
+
+	value = (table[upper]*(interp) + table[lower]*(65535 - interp))/65535; // 0..65535*65535
+
+	return value;
+}
+
+/* same as above but takes an input_value from 0..PRECACHE_OUTPUT_MAX
+ * and returns a uint8_t value representing a range from 0..1 */
+static
+uint8_t lut_interp_linear_precache_output(uint32_t input_value, uint16_t *table, size_t length)
+{
+	/* Start scaling input_value to the length of the array: PRECACHE_OUTPUT_MAX*(length-1).
+	 * We'll divide out the PRECACHE_OUTPUT_MAX next */
+	uintptr_t value = (input_value * (length - 1));
+
+	/* equivalent to ceil(value/PRECACHE_OUTPUT_MAX) */
+	uint32_t upper = (value + PRECACHE_OUTPUT_MAX-1) / PRECACHE_OUTPUT_MAX;
+	/* equivalent to floor(value/PRECACHE_OUTPUT_MAX) */
+	uint32_t lower = value / PRECACHE_OUTPUT_MAX;
+	/* interp is the distance from upper to value scaled to 0..PRECACHE_OUTPUT_MAX */
+	uint32_t interp = value % PRECACHE_OUTPUT_MAX;
+
+	/* the table values range from 0..65535 */
+	value = (table[upper]*(interp) + table[lower]*(PRECACHE_OUTPUT_MAX - interp)); // 0..(65535*PRECACHE_OUTPUT_MAX)
+
+	/* round and scale */
+	value += (PRECACHE_OUTPUT_MAX*65535/255)/2;
+        value /= (PRECACHE_OUTPUT_MAX*65535/255); // scale to 0..255
+	return value;
+}
+
+/* value must be a value between 0 and 1 */
+//XXX: is the above a good restriction to have?
+float lut_interp_linear_float(float value, float *table, size_t length)
+{
+        int upper, lower;
+        value = value * (length - 1);
+        upper = ceil(value);
+        lower = floor(value);
+        //XXX: can we be more performant here?
+        value = table[upper]*(1. - (upper - value)) + table[lower]*(upper - value);
+        /* scale the value */
+        return value;
+}
+
+#if 0
+/* if we use a different representation i.e. one that goes from 0 to 0x1000 we can be more efficient
+ * because we can avoid the divisions and use a shifting instead */
+/* same as above but takes and returns a uint16_t value representing a range from 0..1 */
+uint16_t lut_interp_linear16(uint16_t input_value, uint16_t *table, int length)
+{
+	uint32_t value = (input_value * (length - 1));
+	uint32_t upper = (value + 4095) / 4096; /* equivalent to ceil(value/4096) */
+	uint32_t lower = value / 4096;           /* equivalent to floor(value/4096) */
+	uint32_t interp = value % 4096;
+
+	value = (table[upper]*(interp) + table[lower]*(4096 - interp))/4096; // 0..4096*4096
+
+	return value;
+}
+#endif
+
+void compute_curve_gamma_table_type1(float gamma_table[256], double gamma)
+{
+	unsigned int i;
+	for (i = 0; i < 256; i++) {
+		gamma_table[i] = pow(i/255., gamma);
+	}
+}
+
+void compute_curve_gamma_table_type2(float gamma_table[256], uint16_t *table, int length)
+{
+	unsigned int i;
+	for (i = 0; i < 256; i++) {
+		gamma_table[i] = lut_interp_linear(i/255., table, length);
+	}
+}
+
+void compute_curve_gamma_table_type_parametric(float gamma_table[256], float parameter[7], int count)
+{
+        size_t X;
+        float interval;
+        float a, b, c, e, f;
+        float y = parameter[0];
+        if (count == 0) {
+                a = 1;
+                b = 0;
+                c = 0;
+                e = 0;
+                f = 0;
+                interval = -INFINITY;
+        } else if(count == 1) {
+                a = parameter[1];
+                b = parameter[2];
+                c = 0;
+                e = 0;
+                f = 0;
+                interval = -1 * parameter[2] / parameter[1];
+        } else if(count == 2) {
+                a = parameter[1];
+                b = parameter[2];
+                c = 0;
+                e = parameter[3];
+                f = parameter[3];
+                interval = -1 * parameter[2] / parameter[1];
+        } else if(count == 3) {
+                a = parameter[1];
+                b = parameter[2];
+                c = parameter[3];
+                e = -c;
+                f = 0;
+                interval = parameter[4];
+        } else if(count == 4) {
+                a = parameter[1];
+                b = parameter[2];
+                c = parameter[3];
+                e = parameter[5] - c;
+                f = parameter[6];
+                interval = parameter[4];
+        } else {
+                assert(0 && "invalid parametric function type.");
+                a = 1;
+                b = 0;
+                c = 0;
+                e = 0;
+                f = 0;
+                interval = -INFINITY;
+        }       
+        for (X = 0; X < 256; X++) {
+                if (X >= interval) {
+                        // XXX The equations are not exactly as definied in the spec but are
+                        //     algebraic equivilent.
+                        // TODO Should division by 255 be for the whole expression.
+                        gamma_table[X] = pow(a * X / 255. + b, y) + c + e;
+                } else {
+                        gamma_table[X] = c * X / 255. + f;
+                }
+        }
+}
+
+void compute_curve_gamma_table_type0(float gamma_table[256])
+{
+	unsigned int i;
+	for (i = 0; i < 256; i++) {
+		gamma_table[i] = i/255.;
+	}
+}
+
+
+float clamp_float(float a)
+{
+        if (a > 1.)
+                return 1.;
+        else if (a < 0)
+                return 0;
+        else
+                return a;
+}
+
+unsigned char clamp_u8(float v)
+{
+	if (v > 255.)
+		return 255;
+	else if (v < 0)
+		return 0;
+	else
+		return floor(v+.5);
+}
+
+float u8Fixed8Number_to_float(uint16_t x)
+{
+	// 0x0000 = 0.
+	// 0x0100 = 1.
+	// 0xffff = 255  + 255/256
+	return x/256.;
+}
+
+/* The SSE2 code uses min & max which let NaNs pass through.
+   We want to try to prevent that here by ensuring that
+   gamma table is within expected values. */
+void validate_gamma_table(float gamma_table[256])
+{
+	int i;
+	for (i = 0; i < 256; i++) {
+		// Note: we check that the gamma is not in range
+		// instead of out of range so that we catch NaNs
+		if (!(gamma_table[i] >= 0.f && gamma_table[i] <= 1.f)) {
+			gamma_table[i] = 0.f;
+		}
+	}
+}
+
+float *build_input_gamma_table(struct curveType *TRC)
+{
+	float *gamma_table;
+
+	if (!TRC) return NULL;
+	gamma_table = malloc(sizeof(float)*256);
+	if (gamma_table) {
+		if (TRC->type == PARAMETRIC_CURVE_TYPE) {
+			compute_curve_gamma_table_type_parametric(gamma_table, TRC->parameter, TRC->count);
+		} else {
+			if (TRC->count == 0) {
+				compute_curve_gamma_table_type0(gamma_table);
+			} else if (TRC->count == 1) {
+				compute_curve_gamma_table_type1(gamma_table, u8Fixed8Number_to_float(TRC->data[0]));
+			} else {
+				compute_curve_gamma_table_type2(gamma_table, TRC->data, TRC->count);
+			}
+		}
+	}
+
+	validate_gamma_table(gamma_table);
+
+	return gamma_table;
+}
+
+struct matrix build_colorant_matrix(qcms_profile *p)
+{
+	struct matrix result;
+	result.m[0][0] = s15Fixed16Number_to_float(p->redColorant.X);
+	result.m[0][1] = s15Fixed16Number_to_float(p->greenColorant.X);
+	result.m[0][2] = s15Fixed16Number_to_float(p->blueColorant.X);
+	result.m[1][0] = s15Fixed16Number_to_float(p->redColorant.Y);
+	result.m[1][1] = s15Fixed16Number_to_float(p->greenColorant.Y);
+	result.m[1][2] = s15Fixed16Number_to_float(p->blueColorant.Y);
+	result.m[2][0] = s15Fixed16Number_to_float(p->redColorant.Z);
+	result.m[2][1] = s15Fixed16Number_to_float(p->greenColorant.Z);
+	result.m[2][2] = s15Fixed16Number_to_float(p->blueColorant.Z);
+	result.invalid = false;
+	return result;
+}
+
+/* The following code is copied nearly directly from lcms.
+ * I think it could be much better. For example, Argyll seems to have better code in
+ * icmTable_lookup_bwd and icmTable_setup_bwd. However, for now this is a quick way
+ * to a working solution and allows for easy comparing with lcms. */
+uint16_fract_t lut_inverse_interp16(uint16_t Value, uint16_t LutTable[], int length)
+{
+        int l = 1;
+        int r = 0x10000;
+        int x = 0, res;       // 'int' Give spacing for negative values
+        int NumZeroes, NumPoles;
+        int cell0, cell1;
+        double val2;
+        double y0, y1, x0, x1;
+        double a, b, f;
+
+        // July/27 2001 - Expanded to handle degenerated curves with an arbitrary
+        // number of elements containing 0 at the begining of the table (Zeroes)
+        // and another arbitrary number of poles (FFFFh) at the end.
+        // First the zero and pole extents are computed, then value is compared.
+
+        NumZeroes = 0;
+        while (LutTable[NumZeroes] == 0 && NumZeroes < length-1)
+                        NumZeroes++;
+
+        // There are no zeros at the beginning and we are trying to find a zero, so
+        // return anything. It seems zero would be the less destructive choice
+	/* I'm not sure that this makes sense, but oh well... */
+        if (NumZeroes == 0 && Value == 0)
+            return 0;
+
+        NumPoles = 0;
+        while (LutTable[length-1- NumPoles] == 0xFFFF && NumPoles < length-1)
+                        NumPoles++;
+
+        // Does the curve belong to this case?
+        if (NumZeroes > 1 || NumPoles > 1)
+        {               
+                int a, b;
+
+                // Identify if value fall downto 0 or FFFF zone             
+                if (Value == 0) return 0;
+               // if (Value == 0xFFFF) return 0xFFFF;
+
+                // else restrict to valid zone
+
+                a = ((NumZeroes-1) * 0xFFFF) / (length-1);               
+                b = ((length-1 - NumPoles) * 0xFFFF) / (length-1);
+                                                                
+                l = a - 1;
+                r = b + 1;
+        }
+
+
+        // Seems not a degenerated case... apply binary search
+
+        while (r > l) {
+
+                x = (l + r) / 2;
+
+		res = (int) lut_interp_linear16((uint16_fract_t) (x-1), LutTable, length);
+
+                if (res == Value) {
+
+                    // Found exact match. 
+                    
+                    return (uint16_fract_t) (x - 1);
+                }
+
+                if (res > Value) r = x - 1;
+                else l = x + 1;
+        }
+
+        // Not found, should we interpolate?
+
+                
+        // Get surrounding nodes
+        
+        val2 = (length-1) * ((double) (x - 1) / 65535.0);
+
+        cell0 = (int) floor(val2);
+        cell1 = (int) ceil(val2);
+           
+        if (cell0 == cell1) return (uint16_fract_t) x;
+
+        y0 = LutTable[cell0] ;
+        x0 = (65535.0 * cell0) / (length-1); 
+
+        y1 = LutTable[cell1] ;
+        x1 = (65535.0 * cell1) / (length-1);
+
+        a = (y1 - y0) / (x1 - x0);
+        b = y0 - a * x0;
+
+        if (fabs(a) < 0.01) return (uint16_fract_t) x;
+
+        f = ((Value - b) / a);
+
+        if (f < 0.0) return (uint16_fract_t) 0;
+        if (f >= 65535.0) return (uint16_fract_t) 0xFFFF;
+
+        return (uint16_fract_t) floor(f + 0.5);                        
+
+}
+
+/*
+ The number of entries needed to invert a lookup table should not
+ necessarily be the same as the original number of entries.  This is
+ especially true of lookup tables that have a small number of entries.
+
+ For example:
+ Using a table like:
+    {0, 3104, 14263, 34802, 65535}
+ invert_lut will produce an inverse of:
+    {3, 34459, 47529, 56801, 65535}
+ which has an maximum error of about 9855 (pixel difference of ~38.346)
+
+ For now, we punt the decision of output size to the caller. */
+static uint16_t *invert_lut(uint16_t *table, int length, size_t out_length)
+{
+        int i;
+        /* for now we invert the lut by creating a lut of size out_length
+         * and attempting to lookup a value for each entry using lut_inverse_interp16 */
+        uint16_t *output = malloc(sizeof(uint16_t)*out_length);
+        if (!output)
+                return NULL;
+
+        for (i = 0; i < out_length; i++) {
+                double x = ((double) i * 65535.) / (double) (out_length - 1);
+                uint16_fract_t input = floor(x + .5);
+                output[i] = lut_inverse_interp16(input, table, length);
+        }
+        return output;
+}
+
+static void compute_precache_pow(uint8_t *output, float gamma)
+{
+	uint32_t v = 0;
+	for (v = 0; v < PRECACHE_OUTPUT_SIZE; v++) {
+		//XXX: don't do integer/float conversion... and round?
+		output[v] = 255. * pow(v/(double)PRECACHE_OUTPUT_MAX, gamma);
+	}
+}
+
+void compute_precache_lut(uint8_t *output, uint16_t *table, int length)
+{
+	uint32_t v = 0;
+	for (v = 0; v < PRECACHE_OUTPUT_SIZE; v++) {
+		output[v] = lut_interp_linear_precache_output(v, table, length);
+	}
+}
+
+void compute_precache_linear(uint8_t *output)
+{
+	uint32_t v = 0;
+	for (v = 0; v < PRECACHE_OUTPUT_SIZE; v++) {
+		//XXX: round?
+		output[v] = v / (PRECACHE_OUTPUT_SIZE/256);
+	}
+}
+
+qcms_bool compute_precache(struct curveType *trc, uint8_t *output)
+{
+        
+        if (trc->type == PARAMETRIC_CURVE_TYPE) {
+                        float gamma_table[256];
+                        uint16_t gamma_table_uint[256];
+                        uint16_t i;
+                        uint16_t *inverted;
+                        int inverted_size = 256;
+
+                        compute_curve_gamma_table_type_parametric(gamma_table, trc->parameter, trc->count);
+                        for(i = 0; i < 256; i++) {
+                                gamma_table_uint[i] = (uint16_t)(gamma_table[i] * 65535);
+                        }
+
+                        //XXX: the choice of a minimum of 256 here is not backed by any theory, 
+                        //     measurement or data, howeve r it is what lcms uses.
+                        //     the maximum number we would need is 65535 because that's the 
+                        //     accuracy used for computing the pre cache table
+                        if (inverted_size < 256)
+                                inverted_size = 256;
+
+                        inverted = invert_lut(gamma_table_uint, 256, inverted_size);
+                        if (!inverted)
+                                return false;
+                        compute_precache_lut(output, inverted, inverted_size);
+                        free(inverted);
+        } else {
+                if (trc->count == 0) {
+                        compute_precache_linear(output);
+                } else if (trc->count == 1) {
+                        compute_precache_pow(output, 1./u8Fixed8Number_to_float(trc->data[0]));
+                } else {
+                        uint16_t *inverted;
+                        int inverted_size = trc->count;
+                        //XXX: the choice of a minimum of 256 here is not backed by any theory, 
+                        //     measurement or data, howeve r it is what lcms uses.
+                        //     the maximum number we would need is 65535 because that's the 
+                        //     accuracy used for computing the pre cache table
+                        if (inverted_size < 256)
+                                inverted_size = 256;
+
+                        inverted = invert_lut(trc->data, trc->count, inverted_size);
+                        if (!inverted)
+                                return false;
+                        compute_precache_lut(output, inverted, inverted_size);
+                        free(inverted);
+                }
+        }
+        return true;
+}
+
+
+static uint16_t *build_linear_table(int length)
+{
+        int i;
+        uint16_t *output = malloc(sizeof(uint16_t)*length);
+        if (!output)
+                return NULL;
+
+        for (i = 0; i < length; i++) {
+                double x = ((double) i * 65535.) / (double) (length - 1);
+                uint16_fract_t input = floor(x + .5);
+                output[i] = input;
+        }
+        return output;
+}
+
+static uint16_t *build_pow_table(float gamma, int length)
+{
+        int i;
+        uint16_t *output = malloc(sizeof(uint16_t)*length);
+        if (!output)
+                return NULL;
+
+        for (i = 0; i < length; i++) {
+                uint16_fract_t result;
+                double x = ((double) i) / (double) (length - 1);
+                x = pow(x, gamma);                //XXX turn this conversion into a function
+                result = floor(x*65535. + .5);
+                output[i] = result;
+        }
+        return output;
+}
+
+void build_output_lut(struct curveType *trc,
+                uint16_t **output_gamma_lut, size_t *output_gamma_lut_length)
+{
+        if (trc->type == PARAMETRIC_CURVE_TYPE) {
+                float gamma_table[256];
+                uint16_t i;
+                uint16_t *output = malloc(sizeof(uint16_t)*256);
+
+                if (!output) {
+                        *output_gamma_lut = NULL;
+                        return;
+                }
+
+                compute_curve_gamma_table_type_parametric(gamma_table, trc->parameter, trc->count);
+                *output_gamma_lut_length = 256;
+                for(i = 0; i < 256; i++) {
+                        output[i] = (uint16_t)(gamma_table[i] * 65535);
+                }
+                *output_gamma_lut = output;
+        } else {
+                if (trc->count == 0) {
+                        *output_gamma_lut = build_linear_table(4096);
+                        *output_gamma_lut_length = 4096;
+                } else if (trc->count == 1) {
+                        float gamma = 1./u8Fixed8Number_to_float(trc->data[0]);
+                        *output_gamma_lut = build_pow_table(gamma, 4096);
+                        *output_gamma_lut_length = 4096;
+                } else {
+                        //XXX: the choice of a minimum of 256 here is not backed by any theory, 
+                        //     measurement or data, however it is what lcms uses.
+                        *output_gamma_lut_length = trc->count;
+                        if (*output_gamma_lut_length < 256)
+                                *output_gamma_lut_length = 256;
+
+                        *output_gamma_lut = invert_lut(trc->data, trc->count, *output_gamma_lut_length);
+                }
+        }
+
+}
diff --git a/third_party/qcms/src/transform_util.h b/third_party/qcms/src/transform_util.h
new file mode 100644
index 0000000..de465f4
--- /dev/null
+++ b/third_party/qcms/src/transform_util.h
@@ -0,0 +1,59 @@
+/* vim: set ts=8 sw=8 noexpandtab: */
+//  qcms
+//  Copyright (C) 2009 Mozilla Foundation
+//  Copyright (C) 1998-2007 Marti Maria
+//
+// Permission is hereby granted, free of charge, to any person obtaining 
+// a copy of this software and associated documentation files (the "Software"), 
+// to deal in the Software without restriction, including without limitation 
+// the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+// and/or sell copies of the Software, and to permit persons to whom the Software 
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in 
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO 
+// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#ifndef _QCMS_TRANSFORM_UTIL_H
+#define _QCMS_TRANSFORM_UTIL_H
+
+#include <stdlib.h>
+
+#define CLU(table,x,y,z) table[(x*len + y*x_len + z*xy_len)*3]
+
+//XXX: could use a bettername
+typedef uint16_t uint16_fract_t;
+
+float lut_interp_linear(double value, uint16_t *table, size_t length);
+float lut_interp_linear_float(float value, float *table, size_t length);
+uint16_t lut_interp_linear16(uint16_t input_value, uint16_t *table, size_t length);
+
+
+static inline float lerp(float a, float b, float t)
+{
+        return a*(1.f-t) + b*t;
+}
+
+unsigned char clamp_u8(float v);
+float clamp_float(float a);
+
+float u8Fixed8Number_to_float(uint16_t x);
+
+
+float *build_input_gamma_table(struct curveType *TRC);
+struct matrix build_colorant_matrix(qcms_profile *p);
+void build_output_lut(struct curveType *trc,
+                      uint16_t **output_gamma_lut, size_t *output_gamma_lut_length);
+
+struct matrix matrix_invert(struct matrix mat);
+qcms_bool compute_precache(struct curveType *trc, uint8_t *output);
+
+
+#endif