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// 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.
#include "config.h"
#include "platform/graphics/StaticBitmapImage.h"
#include "platform/graphics/GraphicsContext.h"
#include "platform/graphics/ImageObserver.h"
#include "platform/graphics/skia/NativeImageSkia.h"
#include "third_party/skia/include/core/SkImage.h"
#include "third_party/skia/include/core/SkPaint.h"
#include "third_party/skia/include/core/SkShader.h"
namespace blink {
PassRefPtr<Image> StaticBitmapImage::create(PassRefPtr<SkImage> image)
{
return adoptRef(new StaticBitmapImage(image));
}
StaticBitmapImage::StaticBitmapImage(PassRefPtr<SkImage> image) : m_image(image)
{
ASSERT(m_image);
}
StaticBitmapImage::~StaticBitmapImage() { }
IntSize StaticBitmapImage::size() const
{
return IntSize(m_image->width(), m_image->height());
}
bool StaticBitmapImage::currentFrameKnownToBeOpaque()
{
return m_image->isOpaque();
}
void StaticBitmapImage::draw(GraphicsContext* ctx, const FloatRect& dstRect, const FloatRect& srcRect, CompositeOperator compositeOp, WebBlendMode blendMode)
{
FloatRect normDstRect = adjustForNegativeSize(dstRect);
FloatRect normSrcRect = adjustForNegativeSize(srcRect);
normSrcRect.intersect(FloatRect(0, 0, m_image->width(), m_image->height()));
if (normSrcRect.isEmpty() || normDstRect.isEmpty())
return; // Nothing to draw.
ASSERT(normSrcRect.width() <= m_image->width() && normSrcRect.height() <= m_image->height());
{
SkPaint paint;
OwnPtr<GraphicsContext::AutoCanvasRestorer> restorer = ctx->preparePaintForDrawRectToRect(&paint, srcRect, dstRect, compositeOp, blendMode, !currentFrameKnownToBeOpaque());
SkRect srcSkRect = WebCoreFloatRectToSKRect(normSrcRect);
SkRect dstSkRect = WebCoreFloatRectToSKRect(normDstRect);
SkCanvas* canvas = ctx->canvas();
canvas->drawImageRect(m_image.get(), &srcSkRect, dstSkRect, &paint);
}
if (ImageObserver* observer = imageObserver())
observer->didDraw(this);
}
} // namespace blink
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