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39 lines
1.5 KiB
C++
39 lines
1.5 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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/*=============================================================================
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OpenGLStructuredBuffer.cpp: OpenGL Index buffer RHI implementation.
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=============================================================================*/
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#include "OpenGLDrvPrivate.h"
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FStructuredBufferRHIRef FOpenGLDynamicRHI::RHICreateStructuredBuffer(uint32 Stride,uint32 Size,uint32 InUsage, FRHIResourceCreateInfo& CreateInfo)
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{
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VERIFY_GL_SCOPE();
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const void *Data = NULL;
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// If a resource array was provided for the resource, create the resource pre-populated
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if(CreateInfo.ResourceArray)
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{
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check(Size == CreateInfo.ResourceArray->GetResourceDataSize());
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Data = CreateInfo.ResourceArray->GetResourceData();
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}
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TRefCountPtr<FOpenGLStructuredBuffer> StructuredBuffer = new FOpenGLStructuredBuffer(Stride, Size, InUsage & BUF_AnyDynamic, Data);
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return StructuredBuffer.GetReference();
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}
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void* FOpenGLDynamicRHI::RHILockStructuredBuffer(FStructuredBufferRHIParamRef StructuredBufferRHI,uint32 Offset,uint32 Size,EResourceLockMode LockMode)
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{
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VERIFY_GL_SCOPE();
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FOpenGLStructuredBuffer* StructuredBuffer = ResourceCast(StructuredBufferRHI);
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return StructuredBuffer->Lock(Offset, Size, LockMode == RLM_ReadOnly, StructuredBuffer->IsDynamic());
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}
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void FOpenGLDynamicRHI::RHIUnlockStructuredBuffer(FStructuredBufferRHIParamRef StructuredBufferRHI)
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{
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VERIFY_GL_SCOPE();
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FOpenGLStructuredBuffer* StructuredBuffer = ResourceCast(StructuredBufferRHI);
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StructuredBuffer->Unlock();
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}
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