void CViewRender::WriteSaveGameScreenshotOfSize( const char *pFilename, int width, int height, bool bCreatePowerOf2Padded/*=false*/, bool bWriteVTF/*=false*/ ) { #ifndef _X360 CMatRenderContextPtr pRenderContext( materials ); pRenderContext->MatrixMode( MATERIAL_PROJECTION ); pRenderContext->PushMatrix(); pRenderContext->MatrixMode( MATERIAL_VIEW ); pRenderContext->PushMatrix(); g_bRenderingScreenshot = true; // Push back buffer on the stack with small viewport pRenderContext->PushRenderTargetAndViewport( NULL, 0, 0, width, height ); // render out to the backbuffer CViewSetup viewSetup = GetView ( STEREO_EYE_MONO ); viewSetup.x = 0; viewSetup.y = 0; viewSetup.width = width; viewSetup.height = height; viewSetup.fov = ScaleFOVByWidthRatio( viewSetup.fov, ( (float)width / (float)height ) / ( 4.0f / 3.0f ) ); viewSetup.m_bRenderToSubrectOfLargerScreen = true; // draw out the scene // Don't draw the HUD or the viewmodel RenderView( viewSetup, VIEW_CLEAR_DEPTH | VIEW_CLEAR_COLOR, 0 ); // get the data from the backbuffer and save to disk // bitmap bits unsigned char *pImage = ( unsigned char * )malloc( width * height * 3 ); // Get Bits from the material system pRenderContext->ReadPixels( 0, 0, width, height, pImage, IMAGE_FORMAT_RGB888 ); // Some stuff to be setup dependent on padded vs. not padded int nSrcWidth, nSrcHeight; unsigned char *pSrcImage; // Create a padded version if necessary unsigned char *pPaddedImage = NULL; if ( bCreatePowerOf2Padded ) { // Setup dimensions as needed int nPaddedWidth = SmallestPowerOfTwoGreaterOrEqual( width ); int nPaddedHeight = SmallestPowerOfTwoGreaterOrEqual( height ); // Allocate int nPaddedImageSize = nPaddedWidth * nPaddedHeight * 3; pPaddedImage = ( unsigned char * )malloc( nPaddedImageSize ); // Zero out the entire thing V_memset( pPaddedImage, 255, nPaddedImageSize ); // Copy over each row individually for ( int nRow = 0; nRow < height; ++nRow ) { unsigned char *pDst = pPaddedImage + 3 * ( nRow * nPaddedWidth ); const unsigned char *pSrc = pImage + 3 * ( nRow * width ); V_memcpy( pDst, pSrc, 3 * width ); } // Setup source data nSrcWidth = nPaddedWidth; nSrcHeight = nPaddedHeight; pSrcImage = pPaddedImage; } else { // Use non-padded info nSrcWidth = width; nSrcHeight = height; pSrcImage = pImage; } // allocate a buffer to write the tga into CUtlBuffer buffer; bool bWriteResult; if ( bWriteVTF ) { // Create and initialize a VTF texture IVTFTexture *pVTFTexture = CreateVTFTexture(); const int nFlags = TEXTUREFLAGS_NOMIP | TEXTUREFLAGS_NOLOD | TEXTUREFLAGS_SRGB; if ( pVTFTexture->Init( nSrcWidth, nSrcHeight, 1, IMAGE_FORMAT_RGB888, nFlags, 1, 1 ) ) { // Copy the image data over to the VTF unsigned char *pDestBits = pVTFTexture->ImageData(); int nDstSize = nSrcWidth * nSrcHeight * 3; V_memcpy( pDestBits, pSrcImage, nDstSize ); // Allocate output buffer int iMaxVTFSize = 1024 + ( nSrcWidth * nSrcHeight * 3 ); void *pVTF = malloc( iMaxVTFSize ); buffer.SetExternalBuffer( pVTF, iMaxVTFSize, 0 ); // Serialize to the buffer bWriteResult = pVTFTexture->Serialize( buffer ); // Free the VTF texture DestroyVTFTexture( pVTFTexture ); } else { bWriteResult = false; } } else { // Write TGA format to buffer int iMaxTGASize = 1024 + ( nSrcWidth * nSrcHeight * 4 ); void *pTGA = malloc( iMaxTGASize ); buffer.SetExternalBuffer( pTGA, iMaxTGASize, 0 ); bWriteResult = TGAWriter::WriteToBuffer( pSrcImage, buffer, nSrcWidth, nSrcHeight, IMAGE_FORMAT_RGB888, IMAGE_FORMAT_RGB888 ); } if ( !bWriteResult ) { Error( "Couldn't write bitmap data snapshot.\n" ); } free( pImage ); free( pPaddedImage ); // async write to disk (this will take ownership of the memory) char szPathedFileName[_MAX_PATH]; Q_snprintf( szPathedFileName, sizeof(szPathedFileName), "//MOD/%s", pFilename ); filesystem->AsyncWrite( szPathedFileName, buffer.Base(), buffer.TellPut(), true ); // restore our previous state pRenderContext->PopRenderTargetAndViewport(); pRenderContext->MatrixMode( MATERIAL_PROJECTION ); pRenderContext->PopMatrix(); pRenderContext->MatrixMode( MATERIAL_VIEW ); pRenderContext->PopMatrix(); g_bRenderingScreenshot = false; #endif }