TextureMapperImageBuffer.h [plain text]
#ifndef TextureMapperImageBuffer_h
#define TextureMapperImageBuffer_h
#include "ImageBuffer.h"
#include "TextureMapper.h"
#if USE(TEXTURE_MAPPER)
namespace WebCore {
class BitmapTextureImageBuffer : public BitmapTexture {
friend class TextureMapperImageBuffer;
public:
static PassRefPtr<BitmapTexture> create() { return adoptRef(new BitmapTextureImageBuffer); }
virtual IntSize size() const { return m_image->internalSize(); }
virtual void didReset();
virtual bool isValid() const { return m_image; }
inline GraphicsContext* graphicsContext() { return m_image ? m_image->context() : 0; }
virtual void updateContents(Image*, const IntRect&, const IntPoint&, UpdateContentsFlag);
virtual void updateContents(TextureMapper*, GraphicsLayer*, const IntRect& target, const IntPoint& offset, UpdateContentsFlag);
virtual void updateContents(const void*, const IntRect& target, const IntPoint& sourceOffset, int bytesPerLine, UpdateContentsFlag);
#if ENABLE(CSS_FILTERS)
PassRefPtr<BitmapTexture> applyFilters(TextureMapper*, const FilterOperations&);
#endif
private:
BitmapTextureImageBuffer() { }
OwnPtr<ImageBuffer> m_image;
};
class TextureMapperImageBuffer : public TextureMapper {
WTF_MAKE_FAST_ALLOCATED;
public:
static PassOwnPtr<TextureMapper> create() { return adoptPtr(new TextureMapperImageBuffer); }
virtual void drawBorder(const Color&, float borderWidth, const FloatRect&, const TransformationMatrix&) OVERRIDE;
virtual void drawNumber(int number, const Color&, const FloatPoint&, const TransformationMatrix&) OVERRIDE;
virtual void drawTexture(const BitmapTexture&, const FloatRect& targetRect, const TransformationMatrix&, float opacity, unsigned exposedEdges) OVERRIDE;
virtual void drawSolidColor(const FloatRect&, const TransformationMatrix&, const Color&) OVERRIDE;
virtual void beginClip(const TransformationMatrix&, const FloatRect&) OVERRIDE;
virtual void bindSurface(BitmapTexture* surface) OVERRIDE { m_currentSurface = surface;}
virtual void endClip() OVERRIDE { graphicsContext()->restore(); }
virtual IntRect clipBounds() OVERRIDE { return currentContext()->clipBounds(); }
virtual IntSize maxTextureSize() const;
virtual PassRefPtr<BitmapTexture> createTexture() OVERRIDE { return BitmapTextureImageBuffer::create(); }
inline GraphicsContext* currentContext()
{
return m_currentSurface ? static_cast<BitmapTextureImageBuffer*>(m_currentSurface.get())->graphicsContext() : graphicsContext();
}
private:
TextureMapperImageBuffer()
: TextureMapper(SoftwareMode)
{ }
RefPtr<BitmapTexture> m_currentSurface;
};
}
#endif // USE(TEXTURE_MAPPER)
#endif // TextureMapperImageBuffer_h