Init

physx/samples/samplebase/RenderTexture.cpp

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+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//  * Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+//  * Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+//  * Neither the name of NVIDIA CORPORATION nor the names of its
+//    contributors may be used to endorse or promote products derived
+//    from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+// PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Copyright (c) 2008-2021 NVIDIA Corporation. All rights reserved.
+// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
+// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.  
+
+#include "SamplePreprocessor.h"
+#include "RendererMemoryMacros.h"
+#include "RenderTexture.h"
+#include "Renderer.h"
+#include "RendererTexture2DDesc.h"
+
+using namespace physx;
+using namespace SampleRenderer;
+
+RenderTexture::RenderTexture(Renderer& renderer, PxU32 id, PxU32 width, PxU32 height, const void* data) :
+	mID				(id),
+	mTexture		(NULL),
+	mOwnsTexture	(true)
+{
+	RendererTexture2DDesc tdesc;
+  tdesc.format  = RendererTexture2D::FORMAT_B8G8R8A8;
+	tdesc.width		= width;
+	tdesc.height	= height;
+	tdesc.numLevels	= 1;
+/*
+	tdesc.filter;
+	tdesc.addressingU;
+	tdesc.addressingV;
+	tdesc.renderTarget;
+*/
+	PX_ASSERT(tdesc.isValid());
+	mTexture		= renderer.createTexture2D(tdesc);
+	PX_ASSERT(mTexture);
+
+	const PxU32 componentCount = 4;
+
+	if(mTexture)
+	{
+		PxU32 pitch = 0;
+		void* buffer = mTexture->lockLevel(0, pitch);
+		PX_ASSERT(buffer);
+		if(buffer)
+		{
+			PxU8* levelDst			= (PxU8*)buffer;
+			const PxU8* levelSrc	= (PxU8*)data;
+			const PxU32 levelWidth	= mTexture->getWidthInBlocks();
+			const PxU32 levelHeight	= mTexture->getHeightInBlocks();
+			const PxU32 rowSrcSize	= levelWidth * mTexture->getBlockSize();
+			PX_UNUSED(rowSrcSize);
+			PX_ASSERT(rowSrcSize <= pitch); // the pitch can't be less than the source row size.
+			for(PxU32 row=0; row<levelHeight; row++)
+			{ 
+				// copy per pixel to handle RBG case, based on component count
+				for(PxU32 col=0; col<levelWidth; col++)
+				{
+					*levelDst++ = levelSrc[0];
+					*levelDst++ = levelSrc[1];
+					*levelDst++ = levelSrc[2];
+					*levelDst++ = 0xFF; //alpha
+					levelSrc += componentCount;
+				}
+			}
+		}
+		mTexture->unlockLevel(0);
+	}
+}
+
+RenderTexture::RenderTexture(Renderer& renderer, PxU32 id, RendererTexture2D* texture) :
+	mID				(id),
+	mTexture		(texture),
+	mOwnsTexture	(false)
+{
+}
+
+RenderTexture::~RenderTexture()
+{
+	if(mOwnsTexture)
+		SAFE_RELEASE(mTexture);
+}