VideoTextureCopierCV.h [plain text]
#ifndef VideoTextureCopierCV_h
#define VideoTextureCopierCV_h
#import "GraphicsContext3D.h"
#import <wtf/UnsafePointer.h>
typedef struct __CVBuffer* CVImageBufferRef;
typedef struct __CVBuffer* CVPixelBufferRef;
typedef CVImageBufferRef CVOpenGLTextureRef;
typedef CVImageBufferRef CVOpenGLESTextureRef;
namespace WebCore {
class TextureCacheCV;
class VideoTextureCopierCV {
public:
VideoTextureCopierCV(GraphicsContext3D&);
~VideoTextureCopierCV();
#if PLATFORM(IOS)
typedef CVOpenGLESTextureRef TextureType;
#else
typedef CVOpenGLTextureRef TextureType;
#endif
bool copyImageToPlatformTexture(CVPixelBufferRef, size_t width, size_t height, Platform3DObject outputTexture, GC3Denum outputTarget, GC3Dint level, GC3Denum internalFormat, GC3Denum format, GC3Denum type, bool premultiplyAlpha, bool flipY);
bool copyVideoTextureToPlatformTexture(TextureType, size_t width, size_t height, Platform3DObject outputTexture, GC3Denum outputTarget, GC3Dint level, GC3Denum internalFormat, GC3Denum format, GC3Denum type, bool premultiplyAlpha, bool flipY, bool swapColorChannels = false);
GraphicsContext3D& context() { return m_context; }
private:
bool copyVideoTextureToPlatformTexture(Platform3DObject inputTexture, GC3Denum inputTarget, size_t width, size_t height, Platform3DObject outputTexture, GC3Denum outputTarget, GC3Dint level, GC3Denum internalFormat, GC3Denum format, GC3Denum type, bool premultiplyAlpha, bool flipY, bool swapColorChannels);
bool initializeContextObjects();
bool initializeUVContextObjects();
#if USE(IOSURFACE)
unsigned lastTextureSeed(GC3Duint texture)
{
auto iterator = m_lastTextureSeed.find(texture);
return iterator == m_lastTextureSeed.end() ? 0 : iterator->value;
}
#endif
Ref<GraphicsContext3D> m_sharedContext;
Ref<GraphicsContext3D> m_context;
std::unique_ptr<TextureCacheCV> m_textureCache;
Platform3DObject m_framebuffer { 0 };
Platform3DObject m_program { 0 };
Platform3DObject m_vertexBuffer { 0 };
GC3Dint m_textureUniformLocation { -1 };
GC3Dint m_textureDimensionsUniformLocation { -1 };
GC3Dint m_flipYUniformLocation { -1 };
GC3Dint m_swapColorChannelsUniformLocation { -1 };
GC3Dint m_premultiplyUniformLocation { -1 };
GC3Dint m_positionAttributeLocation { -1 };
Platform3DObject m_yuvProgram { 0 };
Platform3DObject m_yuvVertexBuffer { 0 };
GC3Dint m_yTextureUniformLocation { -1 };
GC3Dint m_uvTextureUniformLocation { -1 };
GC3Dint m_yuvFlipYUniformLocation { -1 };
GC3Dint m_colorMatrixUniformLocation { -1 };
GC3Dint m_yuvPositionAttributeLocation { -1 };
GC3Dint m_yTextureSizeUniformLocation { -1 };
GC3Dint m_uvTextureSizeUniformLocation { -1 };
#if USE(IOSURFACE)
bool m_lastFlipY { false };
UnsafePointer<IOSurfaceRef> m_lastSurface;
uint32_t m_lastSurfaceSeed { 0 };
using TextureSeedMap = HashMap<GC3Duint, unsigned, WTF::IntHash<GC3Duint>, WTF::UnsignedWithZeroKeyHashTraits<GC3Duint>>;
TextureSeedMap m_lastTextureSeed;
#endif
};
}
#endif // VideoTextureCopierCV_h