Clone of chromium aad1ce808763f59c7a3753e08f1500a104ecc6fd refs/remotes/origin/HEAD
diff --git a/cc/resources/ui_resource_bitmap.cc b/cc/resources/ui_resource_bitmap.cc
new file mode 100644
index 0000000..e254cf7
--- /dev/null
+++ b/cc/resources/ui_resource_bitmap.cc
@@ -0,0 +1,95 @@
+// Copyright 2013 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.
+
+#include "cc/resources/ui_resource_bitmap.h"
+
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "third_party/skia/include/core/SkMallocPixelRef.h"
+#include "third_party/skia/include/core/SkPixelRef.h"
+
+namespace cc {
+namespace {
+
+UIResourceBitmap::UIResourceFormat SkColorTypeToUIResourceFormat(
+ SkColorType sk_type) {
+ UIResourceBitmap::UIResourceFormat format = UIResourceBitmap::RGBA8;
+ switch (sk_type) {
+ case kN32_SkColorType:
+ format = UIResourceBitmap::RGBA8;
+ break;
+ case kAlpha_8_SkColorType:
+ format = UIResourceBitmap::ALPHA_8;
+ break;
+ default:
+ NOTREACHED() << "Invalid SkColorType for UIResourceBitmap: " << sk_type;
+ break;
+ }
+ return format;
+}
+
+} // namespace
+
+void UIResourceBitmap::Create(const skia::RefPtr<SkPixelRef>& pixel_ref,
+ const gfx::Size& size,
+ UIResourceFormat format) {
+ DCHECK(size.width());
+ DCHECK(size.height());
+ DCHECK(pixel_ref);
+ DCHECK(pixel_ref->isImmutable());
+ format_ = format;
+ size_ = size;
+ pixel_ref_ = pixel_ref;
+
+ // Default values for secondary parameters.
+ wrap_mode_ = CLAMP_TO_EDGE;
+ opaque_ = (format == ETC1);
+}
+
+UIResourceBitmap::UIResourceBitmap(const SkBitmap& skbitmap) {
+ DCHECK_EQ(skbitmap.width(), skbitmap.rowBytesAsPixels());
+ DCHECK(skbitmap.isImmutable());
+
+ skia::RefPtr<SkPixelRef> pixel_ref = skia::SharePtr(skbitmap.pixelRef());
+ const SkImageInfo& info = pixel_ref->info();
+ Create(pixel_ref,
+ gfx::Size(info.fWidth, info.fHeight),
+ SkColorTypeToUIResourceFormat(skbitmap.colorType()));
+
+ SetOpaque(skbitmap.isOpaque());
+}
+
+UIResourceBitmap::UIResourceBitmap(const gfx::Size& size, bool is_opaque) {
+ SkAlphaType alphaType = is_opaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType;
+ SkImageInfo info =
+ SkImageInfo::MakeN32(size.width(), size.height(), alphaType);
+ skia::RefPtr<SkPixelRef> pixel_ref = skia::AdoptRef(
+ SkMallocPixelRef::NewAllocate(info, info.minRowBytes(), NULL));
+ pixel_ref->setImmutable();
+ Create(pixel_ref, size, UIResourceBitmap::RGBA8);
+ SetOpaque(is_opaque);
+}
+
+UIResourceBitmap::UIResourceBitmap(const skia::RefPtr<SkPixelRef>& pixel_ref,
+ const gfx::Size& size) {
+ Create(pixel_ref, size, UIResourceBitmap::ETC1);
+}
+
+UIResourceBitmap::~UIResourceBitmap() {}
+
+AutoLockUIResourceBitmap::AutoLockUIResourceBitmap(
+ const UIResourceBitmap& bitmap) : bitmap_(bitmap) {
+ bitmap_.pixel_ref_->lockPixels();
+}
+
+AutoLockUIResourceBitmap::~AutoLockUIResourceBitmap() {
+ bitmap_.pixel_ref_->unlockPixels();
+}
+
+const uint8_t* AutoLockUIResourceBitmap::GetPixels() const {
+ return static_cast<const uint8_t*>(bitmap_.pixel_ref_->pixels());
+}
+
+} // namespace cc
