vtf: 7.5 version support ( fixes #83 )

bitmap/resample.cpp

@@ -784,6 +784,50 @@ bool ResampleRGB323232F( const ResampleInfo_t& info )
 	return true;
 }
 
+bool ResampleRGBA32323232F( const ResampleInfo_t& info )
+{
+	// HDRFIXME: This is some lame shit right here. (We need to get NICE working, etc, etc.)
+
+	// Make sure everything is power of two.
+	Assert( ( info.m_nSrcWidth & ( info.m_nSrcWidth - 1 ) ) == 0 );
+	Assert( ( info.m_nSrcHeight & ( info.m_nSrcHeight - 1 ) ) == 0 );
+	Assert( ( info.m_nDestWidth & ( info.m_nDestWidth - 1 ) ) == 0 );
+	Assert( ( info.m_nDestHeight & ( info.m_nDestHeight - 1 ) ) == 0 );
+
+	// Make sure that we aren't upscaling the image. . .we don't support that very well.
+	Assert( info.m_nSrcWidth >= info.m_nDestWidth );
+	Assert( info.m_nSrcHeight >= info.m_nDestHeight );
+
+	int nSampleWidth = info.m_nSrcWidth / info.m_nDestWidth;
+	int nSampleHeight = info.m_nSrcHeight / info.m_nDestHeight;
+
+	float *pSrc = ( float * )info.m_pSrc;
+	float *pDst = ( float * )info.m_pDest;
+	for( int y = 0; y < info.m_nDestHeight; y++ )
+	{
+		for( int x = 0; x < info.m_nDestWidth; x++ )
+		{
+			float accum[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
+			for( int nSampleY = 0; nSampleY < nSampleHeight; nSampleY++ )
+			{
+				for( int nSampleX = 0; nSampleX < nSampleWidth; nSampleX++ )
+				{
+					accum[0] += pSrc[((x*nSampleWidth+nSampleX)+(y*nSampleHeight+nSampleY)*info.m_nSrcWidth)*4+0];
+					accum[1] += pSrc[((x*nSampleWidth+nSampleX)+(y*nSampleHeight+nSampleY)*info.m_nSrcWidth)*4+1];
+					accum[2] += pSrc[((x*nSampleWidth+nSampleX)+(y*nSampleHeight+nSampleY)*info.m_nSrcWidth)*4+2];
+					accum[3] += pSrc[((x*nSampleWidth+nSampleX)+(y*nSampleHeight+nSampleY)*info.m_nSrcWidth)*4+3];
+				}
+			}
+			for( int i = 0; i < 4; i++ )
+			{
+				accum[i] /= ( nSampleWidth * nSampleHeight );
+				pDst[(x+y*info.m_nDestWidth)*4+i] = accum[i];
+			}
+		}
+	}
+	return true;
+}
+
 //-----------------------------------------------------------------------------
 // Generates mipmap levels
 //-----------------------------------------------------------------------------

public/bitmap/imageformat.h

@@ -459,6 +459,7 @@ namespace ImageLoader
 	bool ResampleRGBA8888( const ResampleInfo_t &info );
 	bool ResampleRGBA16161616( const ResampleInfo_t &info );
 	bool ResampleRGB323232F( const ResampleInfo_t &info );
+	bool ResampleRGBA32323232F( const ResampleInfo_t& info );
 
 	void ConvertNormalMapRGBA8888ToDUDVMapUVLX8888( const unsigned char *src, int width, int height,
 													unsigned char *dst_ );

public/vtf/vtf.h

@@ -440,7 +440,7 @@ bool GetVTFPreload360Data( const char *pDebugName, CUtlBuffer &fileBufferIn, CUt
 
 // version number for the disk texture cache
 #define VTF_MAJOR_VERSION 7
-#define VTF_MINOR_VERSION 4
+#define VTF_MINOR_VERSION 5
 
 //-----------------------------------------------------------------------------
 // !!!!CRITICAL!!!! BEFORE YOU CHANGE THE FORMAT

vtf/vtf.cpp

@@ -190,7 +190,11 @@ IVTFTexture *CreateVTFTexture()
 
 void DestroyVTFTexture( IVTFTexture *pTexture )
 {
-	delete pTexture;
+	CVTFTexture *pTex = static_cast<CVTFTexture*>(pTexture);
+	if ( pTex )
+	{
+		delete pTex;
+	}
 }
 
 //-----------------------------------------------------------------------------
@@ -220,6 +224,7 @@ int VTFFileHeaderSize( int nMajorVersion, int nMinorVersion )
 			return sizeof( VTFFileHeaderV7_2_t );
 		case 3:
 			return sizeof( VTFFileHeaderV7_3_t ) + sizeof( ResourceEntryInfo ) * MAX_RSRC_DICTIONARY_ENTRIES;
+		case 4:
 		case VTF_MINOR_VERSION:
 			int size1 = sizeof( VTFFileHeader_t );
 			int size2 = sizeof( ResourceEntryInfo ) * MAX_RSRC_DICTIONARY_ENTRIES;
@@ -388,10 +393,14 @@ bool CVTFTexture::Init( int nWidth, int nHeight, int nDepth, ImageFormat fmt, in
 		}
 	}
 
-	if ( !IsMultipleOf4( nWidth ) || !IsMultipleOf4( nHeight ) || !IsMultipleOf4( nDepth ) )
+	if ( ( fmt == IMAGE_FORMAT_DXT1 ) || ( fmt == IMAGE_FORMAT_DXT3 ) || ( fmt == IMAGE_FORMAT_DXT5 ) ||
+		 ( fmt == IMAGE_FORMAT_DXT1_RUNTIME ) || ( fmt == IMAGE_FORMAT_DXT5_RUNTIME ) )
 	{
-		Warning( "Image dimensions must be multiple of 4!\n" );
-		return false;
+		if ( !IsMultipleOf4( nWidth ) || !IsMultipleOf4( nHeight ) || !IsMultipleOf4( nDepth ) )
+		{
+			Warning( "Image dimensions must be multiple of 4!\n" );
+			return false;
+		}
 	}
 
 	if ( fmt == IMAGE_FORMAT_DEFAULT )
@@ -676,89 +685,65 @@ bool CVTFTexture::LoadImageData( CUtlBuffer &buf, const VTFFileHeader_t &header,
 	int iImageSize = ComputeFaceSize();
 	iImageSize *= m_nFaceCount * m_nFrameCount;
 
-	// For backwards compatibility, we don't read in the spheremap fallback on
-	// older format .VTF files...
-	int nFacesToRead = m_nFaceCount;
-	if ( IsCubeMap() )
-	{
-		if ((header.version[0] == 7) && (header.version[1] < 1))
-			nFacesToRead = 6;
-	}
-
-	// Even if we are preloading partial data, always do the full allocation here. We'll use LOD clamping to ensure we only 
-	// reference data that is available.
 	if ( !AllocateImageData( iImageSize ) )
 		return false;
 
-	// We may only have part of the data available--if so we will stream in the rest later. 
-	// If we have the data available but we're ignoring it (for example during development), then we 
-	// need to skip over the data we're ignoring below, otherwise we'll be sad pandas.
-	bool bMipDataPresent = true;
-	int nFirstAvailableMip = 0;
-	int nLastAvailableMip = m_nMipCount - 1;
-	TextureStreamSettings_t const *pStreamSettings = ( TextureStreamSettings_t const * ) GetResourceData( VTF_RSRC_TEXTURE_STREAM_SETTINGS, NULL );
-	if ( pStreamSettings ) 
-	{
-		nFirstAvailableMip = Max( 0, pStreamSettings->m_firstAvailableMip - nSkipMipLevels );
-		nLastAvailableMip = Max( 0, pStreamSettings->m_lastAvailableMip - nSkipMipLevels );
-		bMipDataPresent = false;
-	} 
-	
-	// If we have coarse mips but not the fine mips (yet)
-	if ( ( header.flags & TEXTUREFLAGS_STREAMABLE ) == TEXTUREFLAGS_STREAMABLE_COARSE )
-	{
-		nFirstAvailableMip = Max( 0, Max( nFirstAvailableMip, STREAMING_START_MIPMAP ) - nSkipMipLevels );
-	}
+	// NOTE: The mip levels are stored ascending from smallest (1x1) to largest (NxN)
+	// in order to allow for truncated reads of the minimal required data
 
-	if ( header.flags & TEXTUREFLAGS_STREAMABLE_FINE )
+	// NOTE: I checked in a bad version 4 where it stripped out the spheremap.
+	// To make it all work, need to check for that bad case.
+	bool bNoSkip = false;
+	if ( IsCubeMap() && ( header.version[0] == 7 ) && ( header.version[1] == 4 ) )
 	{
-		// Don't need to subtract nSkipMipLevels: m_nMipCount has subtracted that above--assuming this assert doesn't fire.
-		Assert( m_nMipCount == header.numMipLevels - nSkipMipLevels );
-		nLastAvailableMip = Min( nLastAvailableMip, STREAMING_START_MIPMAP - 1 );
+		int nBytesRemaining = buf.TellMaxPut() - buf.TellGet();
+		int nFileSize = ComputeFaceSize( nSkipMipLevels ) * m_nFaceCount * m_nFrameCount;
+		if ( nBytesRemaining == nFileSize )
+		{
+			bNoSkip = true;
+		}
 	}
 
-	// Valid settings? 
-	Assert( nFirstAvailableMip >= 0 && nFirstAvailableMip <= nLastAvailableMip && nLastAvailableMip < m_nMipCount );
+	int nGet = buf.TellGet();
 
-	// Store the clamp settings
-	m_nFinestMipmapLevel = nFirstAvailableMip;
-	m_nCoarsestMipmapLevel = nLastAvailableMip;
-
-	// NOTE: The mip levels are stored ascending from smallest (1x1) to largest (NxN)
-	// in order to allow for truncated reads of the minimal required data
+retryCubemapLoad:
 	for (int iMip = m_nMipCount; --iMip >= 0; )
 	{
 		// NOTE: This is for older versions...
-		if (header.numMipLevels - nSkipMipLevels <= iMip)
+		if ( header.numMipLevels - nSkipMipLevels <= iMip )
 			continue;
 
 		int iMipSize = ComputeMipSize( iMip );
 
-		// Skip over any levels we don't have data for--we'll get them later. 
-		if ( iMip > nLastAvailableMip || iMip < nFirstAvailableMip )
-		{
-			// If the data is there but we're ignoring it, need to update the get pointer.
-			if ( bMipDataPresent ) 
-			{
-				for ( int iFrame = 0; iFrame < m_nFrameCount; ++iFrame )
-					for ( int iFace = 0; iFace < nFacesToRead; ++iFace )
-						buf.SeekGet( CUtlBuffer::SEEK_CURRENT, iMipSize );
-			}
-			continue;
-		}
-
 		for (int iFrame = 0; iFrame < m_nFrameCount; ++iFrame)
 		{
-			for (int iFace = 0; iFace < nFacesToRead; ++iFace)
+			for (int iFace = 0; iFace < m_nFaceCount; ++iFace)
 			{
 				// printf("\n tex %p mip %i frame %i face %i  size %i  buf offset %i", this, iMip, iFrame, iFace, iMipSize, buf.TellGet() );
 				unsigned char *pMipBits = ImageData( iFrame, iFace, iMip );
 				buf.Get( pMipBits, iMipSize );
 			}
+
+			// Strip out the spheremap in older versions
+			if ( IsCubeMap() && !bNoSkip && ( header.version[0] == 7 ) && ( header.version[1] >= 1 ) && ( header.version[1] < 5 ) )
+			{
+				buf.SeekGet( CUtlBuffer::SEEK_CURRENT, iMipSize );
+			}
 		}
 	}
 
-	return buf.IsValid();
+	bool bOk = buf.IsValid();
+	if ( !bOk && IsCubeMap() && ( header.version[0] == 7 ) && ( header.version[1] <= 4 ) )
+	{
+		if ( !bNoSkip )
+		{
+			bNoSkip = true;
+			buf.SeekGet( CUtlBuffer::SEEK_HEAD, nGet );
+			goto retryCubemapLoad;
+		}
+		Warning( "** Encountered stale cubemap! Please rebuild the following vtf:\n" );
+	}
+	return bOk;
 }
 
 void *CVTFTexture::SetResourceData( uint32 eType, void const *pData, size_t nNumBytes )
@@ -912,7 +897,7 @@ bool CVTFTexture::SetupByteSwap( CUtlBuffer &buf )
 static bool ReadHeaderFromBufferPastBaseHeader( CUtlBuffer &buf, VTFFileHeader_t &header )
 {
 	unsigned char *pBuf = (unsigned char*)(&header) + sizeof(VTFFileBaseHeader_t);
-	if ( header.version[1] == VTF_MINOR_VERSION )
+	if ( header.version[1] <= VTF_MINOR_VERSION && header.version[1] >= 4 )
 	{
 		buf.Get( pBuf, sizeof(VTFFileHeader_t) - sizeof(VTFFileBaseHeader_t) );
 	}
@@ -974,7 +959,7 @@ bool CVTFTexture::ReadHeader( CUtlBuffer &buf, VTFFileHeader_t &header )
 			{
 				m_Swap.SwapFieldsToTargetEndian( (VTFFileHeaderV7_3_t*)buf.PeekGet() );
 			}
-			else if ( baseHeader.version[1] == VTF_MINOR_VERSION )
+			else if ( baseHeader.version[1] >= 4 && baseHeader.version[1] <= VTF_MINOR_VERSION )
 			{
 				m_Swap.SwapFieldsToTargetEndian( (VTFFileHeader_t*)buf.PeekGet() );
 			}
@@ -1021,6 +1006,7 @@ bool CVTFTexture::ReadHeader( CUtlBuffer &buf, VTFFileHeader_t &header )
 	case 3:
 		header.flags &= VERSIONED_VTF_FLAGS_MASK_7_3;
 		// fall-through
+	case 4:
 	case VTF_MINOR_VERSION:
 		break;
 	}
@@ -2528,7 +2514,7 @@ void CVTFTexture::GenerateMipmaps()
 //		return;
 //	}
 
-	Assert( m_Format == IMAGE_FORMAT_RGBA8888 || m_Format == IMAGE_FORMAT_RGB323232F );
+	Assert( m_Format == IMAGE_FORMAT_RGBA8888 || m_Format == IMAGE_FORMAT_RGB323232F || m_Format == IMAGE_FORMAT_RGBA32323232F );
 
 	// FIXME: Should we be doing anything special for normalmaps other than a final normalization pass?
 	ImageLoader::ResampleInfo_t info;
@@ -2667,7 +2653,11 @@ void CVTFTexture::GenerateMipmaps()
 				info.m_pSrc = pSrcLevel;
 				info.m_pDest = pDstLevel;
 				ComputeMipLevelDimensions( nSrcMipLevel, &info.m_nSrcWidth, &info.m_nSrcHeight, &info.m_nSrcDepth );
-				if( m_Format == IMAGE_FORMAT_RGB323232F )
+				if( m_Format == IMAGE_FORMAT_RGBA32323232F )
+				{
+					ImageLoader::ResampleRGBA32323232F( info );
+				}
+				else if( m_Format == IMAGE_FORMAT_RGB323232F )
 				{
 					ImageLoader::ResampleRGB323232F( info );
 				}