VideoTextureCopierCV.h [plain text]
#pragma once
#import "GraphicsContextGLOpenGL.h"
#import <wtf/UnsafePointer.h>
typedef struct __CVBuffer* CVImageBufferRef;
typedef struct __CVBuffer* CVPixelBufferRef;
typedef CVImageBufferRef CVOpenGLTextureRef;
typedef CVImageBufferRef CVOpenGLESTextureRef;
namespace WebCore {
class VideoTextureCopierCV {
WTF_MAKE_FAST_ALLOCATED;
public:
VideoTextureCopierCV(GraphicsContextGLOpenGL&);
~VideoTextureCopierCV();
bool copyImageToPlatformTexture(CVPixelBufferRef, size_t width, size_t height, PlatformGLObject outputTexture, GCGLenum outputTarget, GCGLint level, GCGLenum internalFormat, GCGLenum format, GCGLenum type, bool premultiplyAlpha, bool flipY);
GraphicsContextGLOpenGL& context() { return m_context; }
private:
bool copyVideoTextureToPlatformTexture(PlatformGLObject inputTexture, GCGLenum inputTarget, size_t width, size_t height, PlatformGLObject outputTexture, GCGLenum outputTarget, GCGLint level, GCGLenum internalFormat, GCGLenum format, GCGLenum type, bool premultiplyAlpha, bool flipY, bool swapColorChannels);
bool initializeContextObjects();
bool initializeUVContextObjects();
unsigned lastTextureSeed(GCGLuint texture)
{
return m_lastTextureSeed.get(texture);
}
void* attachIOSurfaceToTexture(GCGLenum target, GCGLenum internalFormat, GCGLsizei width, GCGLsizei height, GCGLenum type, IOSurfaceRef, GCGLuint plane);
void detachIOSurfaceFromTexture(void* handle);
Ref<GraphicsContextGLOpenGL> m_sharedContext;
Ref<GraphicsContextGLOpenGL> m_context;
PlatformGLObject m_framebuffer { 0 };
PlatformGLObject m_program { 0 };
PlatformGLObject m_vertexBuffer { 0 };
GCGLint m_textureUniformLocation { -1 };
GCGLint m_textureDimensionsUniformLocation { -1 };
GCGLint m_flipYUniformLocation { -1 };
GCGLint m_swapColorChannelsUniformLocation { -1 };
GCGLint m_premultiplyUniformLocation { -1 };
GCGLint m_positionAttributeLocation { -1 };
PlatformGLObject m_yuvProgram { 0 };
PlatformGLObject m_yuvVertexBuffer { 0 };
GCGLint m_yTextureUniformLocation { -1 };
GCGLint m_uvTextureUniformLocation { -1 };
GCGLint m_yuvFlipYUniformLocation { -1 };
GCGLint m_colorMatrixUniformLocation { -1 };
GCGLint m_yuvPositionAttributeLocation { -1 };
GCGLint m_yTextureSizeUniformLocation { -1 };
GCGLint m_uvTextureSizeUniformLocation { -1 };
bool m_lastFlipY { false };
UnsafePointer<IOSurfaceRef> m_lastSurface;
uint32_t m_lastSurfaceSeed { 0 };
using TextureSeedMap = HashMap<GCGLuint, unsigned, WTF::IntHash<GCGLuint>, WTF::UnsignedWithZeroKeyHashTraits<GCGLuint>>;
TextureSeedMap m_lastTextureSeed;
};
}