HWVideoToolbox_metal.hpp

#pragma once
#if defined(__APPLE__)
 
#include <cstddef>
#include <cstdint>
 
typedef struct __CVBuffer* CVPixelBufferRef;
 
namespace score::gfx
{
 
void* createMetalTextureCache(void* mtlDevice);
void releaseMetalTextureCache(void* cache);
 
struct MetalTextureFromPixelBuffer
{
  void* cvMetalTexture; // CVMetalTextureRef, retained. Must release via releaseMetalTextureRef().
  void* mtlTexture;     // id<MTLTexture>, borrowed from cvMetalTexture. Valid while cvMetalTexture is alive.
  size_t width;
  size_t height;
};
 
MetalTextureFromPixelBuffer createMetalTextureFromPixelBuffer(
    void* cache, CVPixelBufferRef pixbuf, unsigned planeIndex,
    unsigned pixelFormat);
 
void releaseMetalTextureRef(void* cvMetalTexture);
 
size_t getPixelBufferPlaneCount(CVPixelBufferRef pixbuf);
 
} // namespace score::gfx
 
#endif // __APPLE__