IOpenGLDynamicRHI.h

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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
 
#include "RHI.h"
 
#include "OpenGLThirdParty.h"
 
struct IOpenGLDynamicRHI : public FDynamicRHIPSOFallback
{
    virtual ERHIInterfaceType GetInterfaceType() const override final { return ERHIInterfaceType::OpenGL; }
 
    virtual int32 RHIGetGLMajorVersion() const = 0;
    virtual int32 RHIGetGLMinorVersion() const = 0;
 
    virtual bool RHISupportsFramebufferSRGBEnable() const = 0;
 
    virtual FTextureRHIRef RHICreateTexture2DFromResource(EPixelFormat Format, uint32 SizeX, uint32 SizeY, uint32 NumMips, uint32 NumSamples, uint32 NumSamplesTileMem, const FClearValueBinding& ClearValueBinding, GLuint Resource, ETextureCreateFlags Flags) = 0;
    virtual FTextureRHIRef RHICreateTexture2DArrayFromResource(EPixelFormat Format, uint32 SizeX, uint32 SizeY, uint32 ArraySize, uint32 NumMips, uint32 NumSamples, uint32 NumSamplesTileMem, const FClearValueBinding& ClearValueBinding, GLuint Resource, ETextureCreateFlags Flags) = 0;
    virtual FTextureRHIRef RHICreateTextureCubeFromResource(EPixelFormat Format, uint32 Size, bool bArray, uint32 ArraySize, uint32 NumMips, uint32 NumSamples, uint32 NumSamplesTileMem, const FClearValueBinding& ClearValueBinding, GLuint Resource, ETextureCreateFlags Flags) = 0;
#if PLATFORM_ANDROID
    virtual FTextureRHIRef RHICreateTexture2DFromAndroidHardwareBuffer(FRHICommandListBase& RHICmdList, AHardwareBuffer* HardwareBuffer) = 0;
#endif //PLATFORM_ANDROID
 
    virtual GLuint RHIGetResource(FRHITexture* InTexture) const = 0;
    virtual bool RHIIsValidTexture(GLuint InTexture) const = 0;
    virtual void RHISetExternalGPUTime(uint64 InExternalGPUTime) = 0;
 
    virtual void RHIGenerateMips(FRHITexture* Texture) = 0;
 
#if PLATFORM_ANDROID
    virtual EGLDisplay RHIGetEGLDisplay() const = 0;
    virtual EGLSurface RHIGetEGLSurface() const = 0;
    virtual EGLConfig  RHIGetEGLConfig() const = 0;
    virtual EGLContext RHIGetEGLContext() const = 0;
    virtual ANativeWindow* RHIGetEGLNativeWindow() const = 0;
    virtual bool RHIEGLSupportsNoErrorContext() const = 0;
 
    virtual void RHIInitEGLInstanceGLES2() = 0;
    virtual void RHIInitEGLBackBuffer() = 0;
    virtual void RHIEGLSetCurrentRenderingContext() = 0;
    virtual void RHIEGLTerminateContext() = 0;
#endif
};
 
inline IOpenGLDynamicRHI* GetIOpenGLDynamicRHI()
{
    check(GDynamicRHI->GetInterfaceType() == ERHIInterfaceType::OpenGL);
    return GetDynamicRHI<IOpenGLDynamicRHI>();
}