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VTFFile.cpp
4294 lines (3659 loc) · 128 KB
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VTFFile.cpp
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/*
* VTFLib
* Copyright (C) 2005-2011 Neil Jedrzejewski & Ryan Gregg
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later
* version.
*/
#include "VTFLib.h"
#include "VTFFile.h"
#include "VTFFormat.h"
#include "VTFDXTn.h"
#include "VTFMathlib.h"
// Note: VTF creation requires nvDXTLib and has been
// tested with version 8.31.1127.1645, availible here:
// http://developer.nvidia.com/object/dds_utilities_legacy.html
#ifdef USE_NVDXT
// Disable all the warnings in the nvDXTLib.
# pragma warning(disable: 4018)
# pragma warning(disable: 4244)
# pragma warning(disable: 4267)
# if _MSC_VER >= 1400 // Visual Studio 2005
# include "dxtlib\dxtlib.h"
# ifdef _DEBUG
# ifdef _WIN64
# pragma comment(lib, "nvDXTlibMTd.vc8.x64.lib")
# else
# pragma comment(lib, "nvDXTlibMTd.vc8.lib")
# endif
# else
# ifdef _WIN64
# pragma comment(lib, "nvDXTlibMT.vc8.x64.lib")
# else
# pragma comment(lib, "nvDXTlibMT.vc8.lib")
# endif
# endif
# elif _MSC_VER >= 1310 // Visual Studio 2003
# include "dxtlib\dxtlib.h"
# ifdef _DEBUG
# pragma comment(lib, "nvDXTlibMTd.vc7.lib")
# else
# pragma comment(lib, "nvDXTlibMT.vc7.lib")
# endif
# elif
# undef USE_NVDXT
# endif
# pragma warning(default: 4267)
# pragma warning(default: 4244)
# pragma warning(default: 4018)
#endif
using namespace VTFLib;
#ifdef USE_NVDXT
struct SNVCompressionUserData
{
public:
vlVoid *lpData;
public:
CVTFFile *pVTFFile;
vlUInt uiFrame;
vlUInt uiFace;
vlUInt uiSlice;
public:
VTFImageFormat ImageFormat;
public:
SNVCompressionUserData(vlVoid *lpData, VTFImageFormat ImageFormat) : lpData(lpData), pVTFFile(0), ImageFormat(ImageFormat)
{
}
SNVCompressionUserData(CVTFFile *pVTFFile, vlUInt uiFrame, vlUInt uiFace, vlUInt uiSlice, VTFImageFormat ImageFormat) : lpData(0), pVTFFile(pVTFFile), uiFrame(uiFrame), uiFace(uiFace), uiSlice(uiSlice), ImageFormat(ImageFormat)
{
}
};
NV_ERROR_CODE NVWriteCallback(const void *buffer, size_t count, const MIPMapData *mipMapData, void *userData)
{
if(!mipMapData)
{
return NV_OK;
}
assert(userData != 0);
SNVCompressionUserData *UserData = static_cast<SNVCompressionUserData *>(userData);
// Set the image data of a VTFFile object for the specified face and frame.
if(UserData->pVTFFile != 0)
{
assert((vlUInt)count == CVTFFile::ComputeImageSize((vlUInt)mipMapData->width, (vlUInt)mipMapData->height, 1, UserData->ImageFormat));
if(UserData->ImageFormat == UserData->pVTFFile->GetFormat())
{
UserData->pVTFFile->SetData(UserData->uiFrame, UserData->uiFace, UserData->uiSlice, (vlUInt)mipMapData->mipLevel, (vlByte *)buffer);
}
else
{
assert(UserData->pVTFFile->GetFormat() != IMAGE_FORMAT_DXT1 && UserData->pVTFFile->GetFormat() != IMAGE_FORMAT_DXT1_ONEBITALPHA && UserData->pVTFFile->GetFormat() != IMAGE_FORMAT_DXT3 && UserData->pVTFFile->GetFormat() != IMAGE_FORMAT_DXT5);
CVTFFile::ConvertFromRGBA8888((vlByte *)buffer, UserData->pVTFFile->GetData(UserData->uiFrame, UserData->uiFace, UserData->uiSlice, (vlUInt)mipMapData->mipLevel), (vlUInt)mipMapData->width, (vlUInt)mipMapData->height, UserData->pVTFFile->GetFormat());
}
}
// Set the image data of a pointer.
else if(UserData->lpData != 0)
{
assert((vlUInt)count == CVTFFile::ComputeImageSize((vlUInt)mipMapData->width, (vlUInt)mipMapData->height, 1, UserData->ImageFormat));
memcpy(UserData->lpData, buffer, CVTFFile::ComputeImageSize((vlUInt)mipMapData->width, (vlUInt)mipMapData->height, 1, UserData->ImageFormat));
}
else
{
return NV_FAIL;
}
return NV_OK;
}
vlBool nvDXTCompressWrapper(vlByte *lpImageDataRGBA, vlUInt uiWidth, vlUInt uiHeight, nvCompressionOptions *Options, DXTWriteCallback NVWriteCallback)
{
// nvDXTcompressRGBA() seems unstable. Maybe it is a problem with the options?
try
{
if(nvDDS::nvDXTcompress(lpImageDataRGBA, uiWidth, uiHeight, uiWidth * 4, nvRGBA, Options, NVWriteCallback) == S_OK)
{
return vlTrue;
}
else
{
LastError.Set("nvDXTcompress() failed.");
return vlFalse;
}
}
catch(...)
{
LastError.Set("nvDXTcompress() crashed.");
return vlFalse;
}
}
#endif
// Class construction
// ------------------
CVTFFile::CVTFFile()
{
this->Header = 0;
this->uiImageBufferSize = 0;
this->lpImageData = 0;
this->uiThumbnailBufferSize = 0;
this->lpThumbnailImageData = 0;
}
//
// CVTFFile()
// Copy constructor.
//
CVTFFile::CVTFFile(const CVTFFile &VTFFile)
{
this->Header = 0;
this->uiImageBufferSize = 0;
this->lpImageData = 0;
this->uiThumbnailBufferSize = 0;
this->lpThumbnailImageData = 0;
if(VTFFile.IsLoaded())
{
this->Header = new SVTFHeader;
memcpy(this->Header, VTFFile.Header, sizeof(SVTFHeader));
if(VTFFile.GetHasImage())
{
this->uiImageBufferSize = VTFFile.uiImageBufferSize;
this->lpImageData = new vlByte[this->uiImageBufferSize];
memcpy(this->lpImageData, VTFFile.lpImageData, this->uiImageBufferSize);
}
if(VTFFile.GetHasThumbnail())
{
this->uiThumbnailBufferSize = VTFFile.uiThumbnailBufferSize;
this->lpThumbnailImageData = new vlByte[this->uiThumbnailBufferSize];
memcpy(this->lpThumbnailImageData, VTFFile.lpThumbnailImageData, this->uiThumbnailBufferSize);
}
}
}
//
// CVTFFile()
// Copy constructor. Converts VTFFile to ImageFormat.
//
CVTFFile::CVTFFile(const CVTFFile &VTFFile, VTFImageFormat ImageFormat)
{
this->Header = 0;
this->uiImageBufferSize = 0;
this->lpImageData = 0;
this->uiThumbnailBufferSize = 0;
this->lpThumbnailImageData = 0;
if(VTFFile.IsLoaded())
{
this->Header = new SVTFHeader;
memcpy(this->Header, VTFFile.Header, sizeof(SVTFHeader));
// Set new format.
this->Header->ImageFormat = ImageFormat;
// Check flags.
//if(this->Header->Version[0] < VTF_MAJOR_VERSION || (this->Header->Version[0] == VTF_MAJOR_VERSION && this->Header->Version[1] <= VTF_MINOR_VERSION_MIN_RESOURCE))
//{
// if(!this->GetImageFormatInfo(ImageFormat).bIsCompressed)
// {
// this->Header->Flags |= TEXTUREFLAGS_DEPRECATED_NOCOMPRESS;
// }
// else
// {
// this->Header->Flags &= ~TEXTUREFLAGS_DEPRECATED_NOCOMPRESS;
// }
//}
if(this->GetImageFormatInfo(ImageFormat).uiAlphaBitsPerPixel == 1)
{
this->Header->Flags |= TEXTUREFLAGS_ONEBITALPHA;
}
else
{
this->Header->Flags &= ~TEXTUREFLAGS_ONEBITALPHA;
}
if(this->GetImageFormatInfo(ImageFormat).uiAlphaBitsPerPixel > 1)
{
this->Header->Flags |= TEXTUREFLAGS_EIGHTBITALPHA;
}
else
{
this->Header->Flags &= ~TEXTUREFLAGS_EIGHTBITALPHA;
}
// Convert image data.
if(VTFFile.GetHasImage())
{
vlUInt uiFrames = VTFFile.GetFrameCount();
vlUInt uiFaces = VTFFile.GetFaceCount();
vlUInt uiMipmaps = VTFFile.GetMipmapCount();
vlUInt uiSlices = VTFFile.GetDepth();
this->uiImageBufferSize = this->ComputeImageSize(this->Header->Width, this->Header->Height, uiMipmaps, this->Header->ImageFormat) * uiFrames * uiFaces;
this->lpImageData = new vlByte[this->uiImageBufferSize];
//vlByte *lpImageData = new vlByte[this->ComputeImageSize(this->Header->Width, this->Header->Height, 1, IMAGE_FORMAT_RGBA8888)];
for(vlUInt i = 0; i < uiFrames; i++)
{
for(vlUInt j = 0; j < uiFaces; j++)
{
for(vlUInt k = 0; k < uiSlices; k++)
{
for(vlUInt l = 0; l < uiMipmaps; l++)
{
vlUInt uiMipmapWidth, uiMipmapHeight, uiMipmapDepth;
this->ComputeMipmapDimensions(this->Header->Width, this->Header->Height, 1, l, uiMipmapWidth, uiMipmapHeight, uiMipmapDepth);
//this->ConvertToRGBA8888(VTFFile.GetData(i, j, k, l), lpImageData, uiMipmapWidth, uiMipmapHeight, VTFFile.GetFormat());
//this->ConvertFromRGBA8888(lpImageData, this->GetData(i, j, k, l), uiMipmapWidth, uiMipmapHeight, this->GetFormat());
this->Convert(VTFFile.GetData(i, j, k, l), this->GetData(i, j, k, l), uiMipmapWidth, uiMipmapHeight, VTFFile.GetFormat(), this->GetFormat());
}
}
}
}
//delete []lpImageData;
}
// Convert thumbnail data.
if(VTFFile.GetHasThumbnail())
{
this->uiThumbnailBufferSize = VTFFile.uiThumbnailBufferSize;
this->lpThumbnailImageData = new vlByte[this->uiThumbnailBufferSize];
memcpy(this->lpThumbnailImageData, VTFFile.lpThumbnailImageData, this->uiThumbnailBufferSize);
}
}
}
// Class deconstruction
// ------------------
CVTFFile::~CVTFFile()
{
this->Destroy();
}
//
// Create()
// Creates a VTF file of the specified format and size. Image data and other
// options must be set after creation. Essential format flags are automatically
// generated.
//
vlBool CVTFFile::Create(vlUInt uiWidth, vlUInt uiHeight, vlUInt uiFrames, vlUInt uiFaces, vlUInt uiSlices, VTFImageFormat ImageFormat, vlBool bThumbnail, vlBool bMipmaps, vlBool bNullImageData)
{
this->Destroy();
//
// Check options.
//
// Check if width is valid (power of 2 and fits in a short).
if(!this->IsPowerOfTwo(uiWidth) || uiWidth > 0xffff)
{
if(uiWidth == 0)
{
LastError.Set("Invalid image width. Width must be nonzero.");
}
else
{
vlUInt uiNextPowerOfTwo = this->NextPowerOfTwo(uiWidth);
LastError.SetFormatted("Invalid image width %u. Width must be a power of two (nearest powers are %u and %u).", uiWidth, uiNextPowerOfTwo >> 1, uiNextPowerOfTwo);
}
return vlFalse;
}
// Check if height is valid (power of 2 and fits in a short).
if(!this->IsPowerOfTwo(uiHeight) || uiHeight > 0xffff)
{
if(uiHeight == 0)
{
LastError.Set("Invalid image height. Height must be nonzero.");
}
else
{
vlUInt uiNextPowerOfTwo = this->NextPowerOfTwo(uiHeight);
LastError.SetFormatted("Invalid image height %u. Height must be a power of two (nearest powers are %u and %u).", uiHeight, uiNextPowerOfTwo >> 1, uiNextPowerOfTwo);
}
return vlFalse;
}
// Check if height is valid (power of 2 and fits in a short).
if(!this->IsPowerOfTwo(uiSlices) || uiSlices > 0xffff)
{
if(uiHeight == 0)
{
LastError.Set("Invalid image depth. Depth must be nonzero.");
}
else
{
vlUInt uiNextPowerOfTwo = this->NextPowerOfTwo(uiSlices);
LastError.SetFormatted("Invalid image depth %u. Depth must be a power of two (nearest powers are %u and %u).", uiSlices, uiNextPowerOfTwo >> 1, uiNextPowerOfTwo);
}
return vlFalse;
}
if(ImageFormat <= IMAGE_FORMAT_NONE || ImageFormat >= IMAGE_FORMAT_COUNT)
{
LastError.Set("Invalid image format.");
return vlFalse;
}
if(!this->GetImageFormatInfo(ImageFormat).bIsSupported)
{
LastError.Set("Image format not supported.");
return vlFalse;
}
if(uiFrames < 1 || uiFrames > 0xffff)
{
LastError.SetFormatted("Invalid image frame count %u.", uiFrames);
return vlFalse;
}
if(uiFaces != 1 && uiFaces != 6 && uiFaces != 7)
{
LastError.SetFormatted("Invalid image face count %u.", uiFaces);
return vlFalse;
}
if(uiFaces != 1 && uiFaces != 6 && VTF_MINOR_VERSION_DEFAULT >= VTF_MINOR_VERSION_MIN_NO_SPHERE_MAP)
{
LastError.SetFormatted("Invalid image face count %u for version %d.%d.", uiFaces, VTF_MAJOR_VERSION, VTF_MINOR_VERSION_DEFAULT);
return vlFalse;
}
// Note: Valve informs us that animated enviroment maps ARE possible.
// A image cannot have multiple frames and faces.
// Logic: StartFrame is used as a flag when the texture is a TEXTUREFLAGS_ENVMAP.
//if(uiFrames != 1 && uiFaces != 1)
//{
// LastError.Set("Invalid image frame and face count. An image cannot have multiple frames and faces.");
// return vlFalse;
//}
//
// Generate header.
//
this->Header = new SVTFHeader;
memset(this->Header, 0, sizeof(SVTFHeader));
strcpy(this->Header->TypeString, "VTF");
this->Header->Version[0] = VTF_MAJOR_VERSION;
this->Header->Version[1] = VTF_MINOR_VERSION_DEFAULT;
this->Header->HeaderSize = 0;
this->Header->Width = (vlShort)uiWidth;
this->Header->Height = (vlShort)uiHeight;
this->Header->Flags = (this->GetImageFormatInfo(ImageFormat).uiAlphaBitsPerPixel == 1 ? TEXTUREFLAGS_ONEBITALPHA : 0)
| (this->GetImageFormatInfo(ImageFormat).uiAlphaBitsPerPixel > 1 ? TEXTUREFLAGS_EIGHTBITALPHA : 0)
| (uiFaces == 1 ? 0 : TEXTUREFLAGS_ENVMAP)
| (bMipmaps ? 0 : TEXTUREFLAGS_NOMIP | TEXTUREFLAGS_NOLOD);
this->Header->Frames = (vlShort)uiFrames;
this->Header->StartFrame = uiFaces != 6 || VTF_MINOR_VERSION_DEFAULT >= VTF_MINOR_VERSION_MIN_NO_SPHERE_MAP ? 0 : 0xffff;
this->Header->Reflectivity[0] = 1.0f;
this->Header->Reflectivity[1] = 1.0f;
this->Header->Reflectivity[2] = 1.0f;
this->Header->BumpScale = 1.0f;
this->Header->ImageFormat = ImageFormat;
this->Header->MipCount = bMipmaps ? (vlByte)this->ComputeMipmapCount(uiWidth, uiHeight, uiSlices) : 1;
this->Header->Depth = (vlShort)uiSlices;
this->Header->ResourceCount = 0;
//
// Generate thumbnail.
//
if(bThumbnail)
{
// Note: Valve informs us that DXT1 is the correct format.
// The format DXT1 was observed in almost every official .vtf file.
this->Header->LowResImageFormat = IMAGE_FORMAT_DXT1;
// Note: Valve informs us that the below is the right dimensions.
// Find a thumbnail width and height (the first width and height <= 16 pixels).
// The value 16 was observed in almost every official .vtf file.
vlUInt uiThumbnailWidth = this->Header->Width, uiThumbnailHeight = this->Header->Height;
while(vlTrue)
{
if(uiThumbnailWidth <= 16 && uiThumbnailHeight <= 16)
{
break;
}
uiThumbnailWidth >>= 1;
uiThumbnailHeight >>= 1;
if(uiThumbnailWidth < 1)
uiThumbnailWidth = 1;
if(uiThumbnailHeight < 1)
uiThumbnailHeight = 1;
}
this->Header->LowResImageWidth = (vlByte)uiThumbnailWidth;
this->Header->LowResImageHeight = (vlByte)uiThumbnailHeight;
this->uiThumbnailBufferSize = this->ComputeImageSize(this->Header->LowResImageWidth, this->Header->LowResImageHeight, 1, this->Header->LowResImageFormat);
this->lpThumbnailImageData = new vlByte[this->uiThumbnailBufferSize];
this->Header->Resources[this->Header->ResourceCount++].Type = VTF_LEGACY_RSRC_LOW_RES_IMAGE;
}
else
{
this->Header->LowResImageFormat = IMAGE_FORMAT_NONE;
this->Header->LowResImageWidth = 0;
this->Header->LowResImageHeight = 0;
this->uiThumbnailBufferSize = 0;
this->lpThumbnailImageData = 0;
}
//
// Generate image.
//
this->uiImageBufferSize = this->ComputeImageSize(this->Header->Width, this->Header->Height, this->Header->Depth, this->Header->MipCount, this->Header->ImageFormat) * uiFrames * uiFaces;
this->lpImageData = new vlByte[this->uiImageBufferSize];
this->Header->Resources[this->Header->ResourceCount++].Type = VTF_LEGACY_RSRC_IMAGE;
//
// Null image data.
//
if(bNullImageData)
{
memset(this->lpThumbnailImageData, 0, this->uiThumbnailBufferSize);
memset(this->lpImageData, 0, this->uiImageBufferSize);
}
this->ComputeResources();
return vlTrue;
}
//
// Create()
// Creates a VTF file of the specified format and size using the provided image RGBA data.
// Can also generate mipmaps and a thumbnail. Recommended function for high level single
// face/frame VTF file creation.
//
vlBool CVTFFile::Create(vlUInt uiWidth, vlUInt uiHeight, vlByte *lpImageDataRGBA8888, const SVTFCreateOptions &VTFCreateOptions)
{
return this->Create(uiWidth, uiHeight, 1, 1, 1, &lpImageDataRGBA8888, VTFCreateOptions);
}
//
// Create()
// Creates a VTF file of the specified format and size using the provided image RGBA data.
// Can also generate mipmaps and a thumbnail. Recommended function for high level multiple
// face/frame VTF file creation.
//
vlBool CVTFFile::Create(vlUInt uiWidth, vlUInt uiHeight, vlUInt uiFrames, vlUInt uiFaces, vlUInt uiSlices, vlByte **lpImageDataRGBA8888, const SVTFCreateOptions &VTFCreateOptions)
{
vlUInt uiCount = 0;
if(uiFrames > uiCount)
uiCount = uiFrames;
if(uiFaces > uiCount)
uiCount = uiFaces;
if(uiSlices > uiCount)
uiCount = uiSlices;
vlByte **lpNewImageDataRGBA8888 = 0;
if((uiFrames == 1 && uiFaces > 1 && uiSlices > 1) || (uiFrames > 1 && uiFaces == 1 && uiSlices > 1) || (uiFrames > 1 && uiFaces > 1 && uiSlices == 1))
{
LastError.Set("Invalid image frame, face and slice count combination. Function does not support images with any combination of multiple frames or faces or slices.");
return vlFalse;
}
if(VTFCreateOptions.uiVersion[0] != VTF_MAJOR_VERSION || (VTFCreateOptions.uiVersion[1] < 0 || VTFCreateOptions.uiVersion[1] > VTF_MINOR_VERSION))
{
LastError.SetFormatted("File version %u.%u does not match %d.%d to %d.%d.", VTFCreateOptions.uiVersion[0], VTFCreateOptions.uiVersion[1], VTF_MAJOR_VERSION, 0, VTF_MAJOR_VERSION, VTF_MINOR_VERSION);
return vlFalse;
}
if(VTFCreateOptions.uiVersion[0] == VTF_MAJOR_VERSION && VTFCreateOptions.uiVersion[1] < VTF_MINOR_VERSION_MIN_VOLUME && uiSlices > 1)
{
LastError.SetFormatted("Volume textures are only supported in version %d.%d and up.", VTF_MAJOR_VERSION, VTF_MINOR_VERSION_MIN_VOLUME);
return vlFalse;
}
if(VTFCreateOptions.uiVersion[0] == VTF_MAJOR_VERSION && VTFCreateOptions.uiVersion[1] < VTF_MINOR_VERSION_MIN_SPHERE_MAP && uiFaces == 7)
{
LastError.SetFormatted("Sphere maps are only supported in version %d.%d and up.", VTF_MAJOR_VERSION, VTF_MINOR_VERSION_MIN_SPHERE_MAP);
return vlFalse;
}
if(VTFCreateOptions.bMipmaps && uiSlices > 1)
{
LastError.Set("Mipmap generation for depth textures is not supported.");
return vlFalse;
}
try
{
if(VTFCreateOptions.bResize)
{
vlUInt uiNewWidth = uiWidth;
vlUInt uiNewHeight = uiHeight;
switch(VTFCreateOptions.ResizeMethod)
{
case RESIZE_NEAREST_POWER2:
case RESIZE_BIGGEST_POWER2:
case RESIZE_SMALLEST_POWER2:
// Find the best width.
if(this->IsPowerOfTwo(uiWidth))
{
// Width already a power of 2.
uiNewWidth = uiWidth;
}
else
{
// Find largest power of 2.
uiNewWidth = this->NextPowerOfTwo(uiWidth);
if(VTFCreateOptions.ResizeMethod == RESIZE_NEAREST_POWER2)
{
if(uiWidth - (uiNewWidth >> 1) < uiNewWidth - uiWidth)
{
uiNewWidth >>= 1;
}
}
else if(VTFCreateOptions.ResizeMethod == RESIZE_SMALLEST_POWER2)
{
uiNewWidth >>= 1;
}
if(uiNewWidth == 0)
{
uiNewWidth = 1;
}
}
if(VTFCreateOptions.bResizeClamp && uiNewWidth > VTFCreateOptions.uiResizeClampWidth)
{
uiNewWidth = VTFCreateOptions.uiResizeClampWidth;
}
// Find the best height.
if(this->IsPowerOfTwo(uiHeight))
{
// Height already a power of 2.
uiNewHeight = uiHeight;
}
else
{
// Find largest power of 2.
uiNewHeight = this->NextPowerOfTwo(uiHeight);
if(VTFCreateOptions.ResizeMethod == RESIZE_NEAREST_POWER2)
{
if(uiHeight - (uiNewHeight >> 1) < uiNewHeight - uiHeight)
{
uiNewHeight >>= 1;
}
}
else if(VTFCreateOptions.ResizeMethod == RESIZE_SMALLEST_POWER2)
{
uiNewHeight >>= 1;
}
if(uiNewHeight == 0)
{
uiNewHeight = 1;
}
}
if(VTFCreateOptions.bResizeClamp && uiNewHeight > VTFCreateOptions.uiResizeClampHeight)
{
uiNewHeight = VTFCreateOptions.uiResizeClampHeight;
}
break;
case RESIZE_SET:
uiNewWidth = VTFCreateOptions.uiResizeWidth;
uiNewHeight = VTFCreateOptions.uiResizeHeight;
break;
}
assert((uiNewWidth & (uiNewWidth - 1)) == 0);
assert((uiNewHeight & (uiNewHeight - 1)) == 0);
// Resize the input.
if(uiWidth != uiNewWidth || uiHeight != uiNewHeight)
{
lpNewImageDataRGBA8888 = new vlByte *[uiCount];
memset(lpNewImageDataRGBA8888, 0, uiCount * sizeof(vlByte *));
for(vlUInt i = 0; i < uiCount; i++)
{
lpNewImageDataRGBA8888[i] = new vlByte[this->ComputeImageSize(uiNewWidth, uiNewHeight, 1, IMAGE_FORMAT_RGBA8888)];
if(!this->Resize(lpImageDataRGBA8888[i], lpNewImageDataRGBA8888[i], uiWidth, uiHeight, uiNewWidth, uiNewHeight, VTFCreateOptions.ResizeFilter, VTFCreateOptions.ResizeSharpenFilter))
{
throw 0;
}
}
uiWidth = uiNewWidth;
uiHeight = uiNewHeight;
lpImageDataRGBA8888 = lpNewImageDataRGBA8888;
}
}
// Create image (allocate and setup structures).
if(!this->Create(uiWidth, uiHeight, uiFrames, uiFaces + (VTFCreateOptions.bSphereMap && uiFaces == 6 ? 1 : 0), uiSlices, VTFCreateOptions.ImageFormat, VTFCreateOptions.bThumbnail, VTFCreateOptions.bMipmaps, vlFalse))
{
throw 0;
}
// Update version, for the current versions with the current checking this should be sufficient.
this->Header->Version[0] = VTFCreateOptions.uiVersion[0];
this->Header->Version[1] = VTFCreateOptions.uiVersion[1];
this->ComputeResources();
// Do gamma correction.
if(VTFCreateOptions.bGammaCorrection)
{
for(vlUInt i = 0; i < uiFrames; i++)
{
for(vlUInt j = 0; j < uiFaces; j++)
{
for(vlUInt k = 0; k < uiSlices; k++)
{
this->CorrectImageGamma(lpImageDataRGBA8888[i + j + k], this->Header->Width, this->Header->Height, VTFCreateOptions.sGammaCorrection);
}
}
}
}
// Convert the image data to a normal map.
if(VTFCreateOptions.bNormalMap && uiFaces == 1)
{
// Guess some flags the user probably wants...
if(VTFCreateOptions.KernelFilter == KERNEL_FILTER_DUDV)
{
//if(this->Header->Version[0] < VTF_MAJOR_VERSION || (this->Header->Version[0] == VTF_MAJOR_VERSION && this->Header->Version[1] <= VTF_MINOR_VERSION_MIN_RESOURCE))
//{
// this->Header->Flags |= TEXTUREFLAGS_DEPRECATED_PREMULTCOLORBYONEOVERMIPLEVEL | TEXTUREFLAGS_DEPRECATED_NORMALTODUDV;
//}
}
else
{
this->Header->Flags |= TEXTUREFLAGS_NORMAL;
}
// Note: used to use a destination buffer, now just modifies the input data.
//vlByte *lpImageDataNormalMap = new vlByte[this->ComputeImageSize(this->Header->Width, this->Header->Height, IMAGE_FORMAT_RGBA8888)];
for(vlUInt i = 0; i < uiFrames; i++)
{
for(vlUInt j = 0; j < uiFaces; j++)
{
for(vlUInt k = 0; k < uiSlices; k++)
{
if(!this->ConvertToNormalMap(lpImageDataRGBA8888[i + j + k], 0/*lpImageDataNormalMap*/, this->Header->Width, this->Header->Height, VTFCreateOptions.KernelFilter, VTFCreateOptions.HeightConversionMethod, VTFCreateOptions.NormalAlphaResult, VTFCreateOptions.bNormalMinimumZ, VTFCreateOptions.sNormalScale, VTFCreateOptions.bNormalWrap, VTFCreateOptions.bNormalInvertX, VTFCreateOptions.bNormalInvertY, VTFCreateOptions.bNormalInvertZ))
{
//delete []lpImageDataNormalMap;
throw 0;
}
//memcpy(lpImageDataRGBA8888[i + j], lpImageDataNormalMap, this->ComputeImageSize(this->Header->Width, this->Header->Height, IMAGE_FORMAT_RGBA8888));
}
}
}
//delete []lpImageDataNormalMap;
}
// Generate mipmaps off source image.
if(VTFCreateOptions.bMipmaps && this->Header->MipCount != 1)
{
#ifdef USE_NVDXT
// The mipmap callback NVMipmapCallback() will call ConvertFromRGBA8888() which will use the
// NVDXT lib to compress the image data if it is in a DXT format. This is bad!!! The
// nvDXTcompressRGBA() function only seems to be able to handle one call at a time and since
// we made a call for the mipmap generation the thing will crash. Hence all this DXT nonsense.
// This took me a LONG time to figure out! Go NVidia docs...
// Sidenote: this could very well cause problems in multithreaded applications!
// Get the format to generate mipmaps to.
VTFImageFormat MipmapImageFormat;
switch(this->Header->ImageFormat)
{
case IMAGE_FORMAT_DXT1:
case IMAGE_FORMAT_DXT1_ONEBITALPHA:
case IMAGE_FORMAT_DXT3:
case IMAGE_FORMAT_DXT5:
MipmapImageFormat = this->Header->ImageFormat;
break;
default:
MipmapImageFormat = IMAGE_FORMAT_RGBA8888;
break;
}
// Two loops will iterate only once.
for(vlUInt i = 0; i < uiFrames; i++)
{
for(vlUInt j = 0; j < uiFaces; j++)
{
for(vlUInt k = 0; k < uiSlices; k++)
{
nvCompressionOptions Options = nvCompressionOptions();
SNVCompressionUserData UserData = SNVCompressionUserData(this, i, j, k, MipmapImageFormat);
// Don't generate mipmaps.
Options.mipMapGeneration = kGenerateMipMaps;
Options.mipFilterType = (nvMipFilterTypes)VTFCreateOptions.MipmapFilter;
// Setup sharpen filter.
if(VTFCreateOptions.MipmapSharpenFilter != SHARPEN_FILTER_NONE)
{
Options.sharpenFilterType = (nvSharpenFilterTypes)VTFCreateOptions.MipmapSharpenFilter;
Options.sharpening_passes_per_mip_level[0] = 0;
for(vlUInt l = 1; l < MAX_MIP_MAPS; l++)
{
Options.sharpening_passes_per_mip_level[l] = 1;
}
Options.unsharp_data.radius32F = sUnsharpenRadius;
Options.unsharp_data.amount32F = sUnsharpenAmount;
Options.unsharp_data.threshold32F = sUnsharpenThreshold;
Options.xsharp_data.strength32F = sXSharpenStrength;
Options.xsharp_data.threshold32F = sXSharpenThreshold;
}
// Set the format.
switch(uiDXTQuality)
{
case DXT_QUALITY_LOW:
Options.quality = kQualityFastest;
break;
case DXT_QUALITY_MEDIUM:
Options.quality = kQualityNormal;
break;
case DXT_QUALITY_HIGH:
Options.quality = kQualityProduction;
break;
case DXT_QUALITY_HIGHEST:
Options.quality = kQualityHighest;
break;
}
switch(MipmapImageFormat)
{
case IMAGE_FORMAT_DXT1:
Options.textureFormat = kDXT1;
Options.bForceDXT1FourColors = true;
break;
case IMAGE_FORMAT_DXT1_ONEBITALPHA:
Options.bBinaryAlpha = true;
Options.bForceDXT1FourColors = true;
Options.textureFormat = kDXT1a;
break;
case IMAGE_FORMAT_DXT3:
Options.textureFormat = kDXT3;
break;
case IMAGE_FORMAT_DXT5:
Options.textureFormat = kDXT5;
break;
case IMAGE_FORMAT_RGBA8888:
Options.textureFormat = k8888;
Options.bSwapRB = true;
break;
}
if(MipmapImageFormat != IMAGE_FORMAT_RGBA8888)
{
// nvDXTcompressRGBA() fails on widths or heights of 1 or 2 so rescale those images.
if(this->Header->Width < 4)
{
Options.rescaleImageType = kRescalePreScale;
Options.rescaleImageFilter = kMipFilterPoint;
Options.scaleX = 4.0f;
}
if(this->Header->Height < 4)
{
Options.rescaleImageType = kRescalePreScale;
Options.rescaleImageFilter = kMipFilterPoint;
Options.scaleY = 4.0f;
}
}
// The UserData struct gets passed to our callback.
Options.user_data = &UserData;
if(!nvDXTCompressWrapper(lpImageDataRGBA8888[i + j + k], this->Header->Width, this->Header->Height, &Options, NVWriteCallback))
{
throw 0;
}
}
}
}
#else
LastError.Set("NVDXT support required for CVTFFile::GenerateMipmaps().");
throw 0;
#endif
}
else
{
for(vlUInt i = 0; i < uiFrames; i++)
{
for(vlUInt j = 0; j < uiFaces; j++)
{
for(vlUInt k = 0; k < uiSlices; k++)
{
if(!this->ConvertFromRGBA8888(lpImageDataRGBA8888[i + j + k], this->GetData(i, j, k, 0), this->Header->Width, this->Header->Height, this->Header->ImageFormat))
{
throw 0;
}
}
}
}
}
// Generate thumbnail off mipmaps.
if(VTFCreateOptions.bThumbnail)
{
if(!this->GenerateThumbnail())
{
throw 0;
}
}
if(VTFCreateOptions.bSphereMap && uiFaces == 6)
{
if(!this->GenerateSphereMap())
{
throw 0;
}
}
if(VTFCreateOptions.bReflectivity)
{
this->Header->Reflectivity[0] = 0.0f;
this->Header->Reflectivity[1] = 0.0f;
this->Header->Reflectivity[2] = 0.0f;
for(vlUInt i = 0; i < uiFrames; i++)
{
for(vlUInt j = 0; j < uiFaces; j++)
{
for(vlUInt k = 0; k < uiSlices; k++)
{
vlSingle sX, sY, sZ;
this->ComputeImageReflectivity(lpImageDataRGBA8888[i + j + k], uiWidth, uiHeight, sX, sY, sZ);
this->Header->Reflectivity[0] += sX;
this->Header->Reflectivity[1] += sY;
this->Header->Reflectivity[2] += sZ;
}
}
}
vlSingle sInverse = 1.0f / (vlSingle)(uiFrames * uiFaces * uiSlices);
this->Header->Reflectivity[0] *= sInverse;
this->Header->Reflectivity[1] *= sInverse;
this->Header->Reflectivity[2] *= sInverse;
}
else
{
this->SetReflectivity(VTFCreateOptions.sReflectivity[0], VTFCreateOptions.sReflectivity[1], VTFCreateOptions.sReflectivity[2]);
}
// Set the flags, call SetFlag() to make sure we don't set anything we shouldn't.
for(vlUInt i = 0, uiFlag = 0x00000001; i < TEXTUREFLAGS_COUNT; i++, uiFlag <<= 1)
{
if(VTFCreateOptions.uiFlags & uiFlag)
{
this->SetFlag((VTFImageFlag)uiFlag, vlTrue);
}
}
this->SetStartFrame(VTFCreateOptions.uiStartFrame);
this->SetBumpmapScale(VTFCreateOptions.sBumpScale);
return vlTrue;
}
catch(...)
{
if(lpNewImageDataRGBA8888 != 0)
{
for(vlUInt i = 0; i < uiCount; i++)
{
delete []lpNewImageDataRGBA8888[i];
}
delete []lpNewImageDataRGBA8888;
}
this->Destroy();
return vlFalse;
}
}
//
// Destroy()
// Frees all resources associated with the curret image.
//
vlVoid CVTFFile::Destroy()
{
if(this->Header != 0)
{
for(vlUInt i = 0; i < this->Header->ResourceCount; i++)
{
delete []this->Header->Data[i].Data;
}
}
delete this->Header;
this->Header = 0;
this->uiImageBufferSize = 0;
delete []this->lpImageData;
this->lpImageData= 0;
this->uiThumbnailBufferSize = 0;
delete []this->lpThumbnailImageData;
this->lpThumbnailImageData = 0;