cc/resources/ui_resource_bitmap.cc

// 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"

namespace cc {

uint8_t* UIResourceBitmap::GetPixels() const {
  if (!pixel_ref_)
    return NULL;
  return static_cast<uint8_t*>(pixel_ref_->pixels());
}

void UIResourceBitmap::Create(const skia::RefPtr<SkPixelRef>& pixel_ref,
                              UIResourceFormat format,
                              UIResourceWrapMode wrap_mode,
                              gfx::Size size) {
  DCHECK(size.width());
  DCHECK(size.height());
  DCHECK(pixel_ref);
  DCHECK(pixel_ref->isImmutable());
  format_ = format;
  wrap_mode_ = wrap_mode;
  size_ = size;
  pixel_ref_ = pixel_ref;
}

UIResourceBitmap::UIResourceBitmap(const SkBitmap& skbitmap,
                                   UIResourceWrapMode wrap_mode) {
  DCHECK_EQ(skbitmap.config(), SkBitmap::kARGB_8888_Config);
  DCHECK_EQ(skbitmap.width(), skbitmap.rowBytesAsPixels());
  DCHECK(skbitmap.isImmutable());

  skia::RefPtr<SkPixelRef> pixel_ref = skia::SharePtr(skbitmap.pixelRef());
  Create(pixel_ref,
         UIResourceBitmap::RGBA8,
         wrap_mode,
         gfx::Size(skbitmap.width(), skbitmap.height()));
}

UIResourceBitmap::~UIResourceBitmap() {}

}  // namespace cc