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/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#if USE(ACCELERATED_COMPOSITING)
#if USE(SKIA)
#include "BitmapSkPictureCanvasLayerTextureUpdater.h"
#include "LayerPainterChromium.h"
#include "SkCanvas.h"
#include "SkDevice.h"
namespace WebCore {
BitmapSkPictureCanvasLayerTextureUpdater::Texture::Texture(BitmapSkPictureCanvasLayerTextureUpdater* textureUpdater, PassOwnPtr<ManagedTexture> texture)
: CanvasLayerTextureUpdater::Texture(texture)
, m_textureUpdater(textureUpdater)
{
}
void BitmapSkPictureCanvasLayerTextureUpdater::Texture::prepareRect(const IntRect& sourceRect)
{
m_device = adoptPtr(new SkDevice(SkBitmap::kARGB_8888_Config, sourceRect.width(), sourceRect.height()));
OwnPtr<SkCanvas> canvas = adoptPtr(new SkCanvas(m_device.get()));
textureUpdater()->paintContentsRect(canvas.get(), sourceRect);
}
void BitmapSkPictureCanvasLayerTextureUpdater::Texture::updateRect(GraphicsContext3D* context, TextureAllocator* allocator, const IntRect& sourceRect, const IntRect& destRect)
{
texture()->bindTexture(context, allocator);
ASSERT(m_device);
const SkBitmap* bitmap = &m_device->accessBitmap(false);
bitmap->lockPixels();
textureUpdater()->updateTextureRect(context, texture()->format(), destRect, static_cast<uint8_t*>(bitmap->getPixels()));
bitmap->unlockPixels();
m_device.clear();
}
PassRefPtr<BitmapSkPictureCanvasLayerTextureUpdater> BitmapSkPictureCanvasLayerTextureUpdater::create(PassOwnPtr<LayerPainterChromium> painter, bool useMapTexSubImage)
{
return adoptRef(new BitmapSkPictureCanvasLayerTextureUpdater(painter, useMapTexSubImage));
}
BitmapSkPictureCanvasLayerTextureUpdater::BitmapSkPictureCanvasLayerTextureUpdater(PassOwnPtr<LayerPainterChromium> painter, bool useMapTexSubImage)
: SkPictureCanvasLayerTextureUpdater(painter)
, m_texSubImage(useMapTexSubImage)
{
}
BitmapSkPictureCanvasLayerTextureUpdater::~BitmapSkPictureCanvasLayerTextureUpdater()
{
}
PassOwnPtr<LayerTextureUpdater::Texture> BitmapSkPictureCanvasLayerTextureUpdater::createTexture(TextureManager* manager)
{
return adoptPtr(new Texture(this, ManagedTexture::create(manager)));
}
LayerTextureUpdater::SampledTexelFormat BitmapSkPictureCanvasLayerTextureUpdater::sampledTexelFormat(GC3Denum textureFormat)
{
// The component order may be bgra if we uploaded bgra pixels to rgba textures.
return PlatformColor::sameComponentOrder(textureFormat) ?
LayerTextureUpdater::SampledTexelFormatRGBA : LayerTextureUpdater::SampledTexelFormatBGRA;
}
void BitmapSkPictureCanvasLayerTextureUpdater::prepareToUpdate(const IntRect& contentRect, const IntSize& tileSize, int borderTexels, float contentsScale, IntRect* resultingOpaqueRect)
{
m_texSubImage.setSubImageSize(tileSize);
SkPictureCanvasLayerTextureUpdater::prepareToUpdate(contentRect, tileSize, borderTexels, contentsScale, resultingOpaqueRect);
}
void BitmapSkPictureCanvasLayerTextureUpdater::paintContentsRect(SkCanvas* canvas, const IntRect& sourceRect)
{
// Translate the origin of contentRect to that of sourceRect.
canvas->translate(contentRect().x() - sourceRect.x(),
contentRect().y() - sourceRect.y());
drawPicture(canvas);
}
void BitmapSkPictureCanvasLayerTextureUpdater::updateTextureRect(GraphicsContext3D* context, GC3Denum format, const IntRect& destRect, const uint8_t* pixels)
{
m_texSubImage.upload(pixels, destRect, destRect, destRect, format, context);
}
} // namespace WebCore
#endif // USE(SKIA)
#endif // USE(ACCELERATED_COMPOSITING)
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