BitmapSkPictureCanvasLayerTextureUpdater.cpp [plain text]
#include "config.h"
#if USE(ACCELERATED_COMPOSITING)
#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_bitmap.setConfig(SkBitmap::kARGB_8888_Config, sourceRect.width(), sourceRect.height());
m_bitmap.allocPixels();
m_bitmap.setIsOpaque(m_textureUpdater->layerIsOpaque());
SkDevice device(m_bitmap);
SkCanvas canvas(&device);
textureUpdater()->paintContentsRect(&canvas, sourceRect);
}
void BitmapSkPictureCanvasLayerTextureUpdater::Texture::updateRect(GraphicsContext3D* context, TextureAllocator* allocator, const IntRect& sourceRect, const IntRect& destRect)
{
texture()->bindTexture(context, allocator);
m_bitmap.lockPixels();
textureUpdater()->updateTextureRect(context, texture()->format(), destRect, static_cast<uint8_t*>(m_bitmap.getPixels()));
m_bitmap.unlockPixels();
m_bitmap.reset();
}
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)
{
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)
{
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);
}
} #endif // USE(ACCELERATED_COMPOSITING)