WebRtcXR/Plugin~/WebRTCPlugin/GraphicsDevice/OpenGL/OpenGLGraphicsDevice.h

#pragma once

#if SUPPORT_OPENGL_CORE
#include <glad/gl.h>
#endif

#include "GraphicsDevice/IGraphicsDevice.h"

#if CUDA_PLATFORM
#include "GraphicsDevice/Cuda/CudaContext.h"
#endif

namespace unity
{
namespace webrtc
{

namespace webrtc = ::webrtc;

class OpenGLContext;
struct OpenGLTexture2D;
class OpenGLGraphicsDevice : public IGraphicsDevice
{
public:
    OpenGLGraphicsDevice(UnityGfxRenderer renderer, ProfilerMarkerFactory* profiler);
    virtual ~OpenGLGraphicsDevice();

    virtual bool InitV() override;
    virtual void ShutdownV() override;
    inline virtual void* GetEncodeDevicePtrV() override;

    ITexture2D* CreateDefaultTextureV(uint32_t w, uint32_t h, UnityRenderingExtTextureFormat textureFormat) override;
    ITexture2D* CreateCPUReadTextureV(uint32_t width, uint32_t height, UnityRenderingExtTextureFormat textureFormat) override;
    bool CopyResourceV(ITexture2D* dest, ITexture2D* src) override;
    rtc::scoped_refptr<webrtc::I420Buffer> ConvertRGBToI420(ITexture2D* tex) override;
    bool CopyResourceFromNativeV(ITexture2D* dest, void* nativeTexturePtr) override;
    std::unique_ptr<GpuMemoryBufferHandle> Map(ITexture2D* texture) override;

#if CUDA_PLATFORM
    bool IsCudaSupport() override { return m_isCudaSupport; }
    CUcontext GetCUcontext() override { return m_cudaContext.GetContext(); }
    NV_ENC_BUFFER_FORMAT GetEncodeBufferFormat() override { return NV_ENC_BUFFER_FORMAT_ABGR; }
#endif

private:
    bool CopyResource(GLuint dstName, GLuint srcName);
    void ReleaseTexture(OpenGLTexture2D* texture);
#if CUDA_PLATFORM
    CudaContext m_cudaContext;
    bool m_isCudaSupport;
#endif
    std::unique_ptr<OpenGLContext> mainContext_;
    std::vector<std::unique_ptr<OpenGLContext>> contexts_;
};

void* OpenGLGraphicsDevice::GetEncodeDevicePtrV() { return nullptr; }

//---------------------------------------------------------------------------------------------------------------------
} // end namespace webrtc
} // end namespace unity