//----------------------------------------------------------------------------//
Texture* PVRImageCodec::load(const RawDataContainer& data, Texture* result)
{
const PVR_Texture_Header* pvr_header =
reinterpret_cast<const PVR_Texture_Header*>(data.getDataPtr());
// convert header to big endian if required
PVR_Texture_Header converted_pvr_header;
if (!PVRTIsLittleEndian())
{
converted_pvr_header = *pvr_header;
PVRTuint32* data = reinterpret_cast<PVRTuint32*>(&converted_pvr_header);
for (uint i = 0; i < sizeof(PVR_Texture_Header) / sizeof(PVRTuint32); i++)
PVRTByteSwap(reinterpret_cast<PVRTuint8*>(data++), sizeof(PVRTuint32));
pvr_header = &converted_pvr_header;
}
// perform checks for old PVR psPVRHeader
if (pvr_header->dwHeaderSize != sizeof(PVR_Texture_Header))
{
// Unknow or old format
Logger::getSingletonPtr()->logEvent(
"PVRImageCodec::load - unknown or old texture format. "
"Use PVRTexTool to save in appropriate format.", Errors);
return 0;
}
if (pvr_header->dwpfFlags & PVRTEX_CUBEMAP)
{
//Cube maps are not supported
Logger::getSingletonPtr()->logEvent(
"PVRImageCodec::load - cubemap textures unsupported.", Errors);
return 0;
}
/* Only accept untwiddled data UNLESS texture format is PVRTC */
if (((pvr_header->dwpfFlags & PVRTEX_TWIDDLE) == PVRTEX_TWIDDLE) &&
((pvr_header->dwpfFlags & PVRTEX_PIXELTYPE) != OGL_PVRTC2) &&
((pvr_header->dwpfFlags & PVRTEX_PIXELTYPE) != OGL_PVRTC4))
{
// We need to load untwiddled textures -- hw will twiddle for us.
Logger::getSingletonPtr()->logEvent(
"PVRImageCodec::load - Texture should be untwiddled", Errors);
return 0;
}
CEGUI::Texture::PixelFormat cefmt;
bool is_compressed_format = false;
switch (pvr_header->dwpfFlags & PVRTEX_PIXELTYPE)
{
case OGL_RGBA_4444:
cefmt = CEGUI::Texture::PF_RGBA_4444;
break;
case OGL_RGBA_5551:
Logger::getSingletonPtr()->logEvent("PVRImageCodec::load - "
"pixel format RGBA_5551 not supported.", Errors);
return 0;
case OGL_RGB_565:
cefmt = CEGUI::Texture::PF_RGB_565;
break;
case OGL_RGB_555:
Logger::getSingletonPtr()->logEvent("PVRImageCodec::load - "
"pixel format RGB_555 not supported.", Errors);
return 0;
case OGL_I_8:
Logger::getSingletonPtr()->logEvent("PVRImageCodec::load - "
"pixel format I_8 not supported.", Errors);
return 0;
case OGL_AI_88:
Logger::getSingletonPtr()->logEvent("PVRImageCodec::load - "
"pixel format AI_88 not supported.", Errors);
return 0;
case OGL_BGRA_8888:
Logger::getSingletonPtr()->logEvent("PVRImageCodec::load - "
"pixel format BGRA8888 not supported.", Errors);
return 0;
case OGL_RGBA_8888:
cefmt = CEGUI::Texture::PF_RGBA;
break;
case OGL_RGB_888:
cefmt = CEGUI::Texture::PF_RGB;
break;
case MGLPT_PVRTC2:
case OGL_PVRTC2:
cefmt = CEGUI::Texture::PF_PVRTC2;
is_compressed_format = true;
break;
case MGLPT_PVRTC4:
case OGL_PVRTC4:
cefmt = CEGUI::Texture::PF_PVRTC4;
is_compressed_format = true;
break;
default:
Logger::getSingletonPtr()->logEvent("PVRImageCodec::load - "
"wrong pvr pixel format.", Errors);
return 0;
}
const void* texture_data =
reinterpret_cast<const void*>(data.getDataPtr() + pvr_header->dwHeaderSize);
const uint size_x = pvr_header->dwWidth;
const uint size_y = pvr_header->dwHeight;
if (is_compressed_format)
{
if (result->isPixelFormatSupported(cefmt))
{
result->loadFromMemory(texture_data,
Sizef(static_cast<float>(size_x),
static_cast<float>(size_y)),
cefmt);
}
else
{
// Convert PVRTC to 32-bit RGBA
PVRTuint8* decompressed_texture = new PVRTuint8[size_x * size_y * 4];
int bit_mode = (pvr_header->dwpfFlags & PVRTEX_PIXELTYPE) == OGL_PVRTC2;
PVRTDecompressPVRTC(texture_data, bit_mode, size_x, size_y,
decompressed_texture);
cefmt = CEGUI::Texture::PF_RGBA; // Redefine to uncompressed format
result->loadFromMemory(decompressed_texture,
Sizef(static_cast<float>(size_x),
static_cast<float>(size_y)),
cefmt);
delete[] decompressed_texture;
}
}
else
{
// Perform raw data load from textureData
result->loadFromMemory(texture_data,
Sizef(static_cast<float>(size_x),
static_cast<float>(size_y)),
cefmt);
}
return result;
}
/*!***************************************************************************
@Function PVRTTextureLoadFromPointer
@Input pointer Pointer to header-texture's structure
@Modified texName the OpenGL ES texture name as returned by glBindTexture
@Modified psTextureHeader Pointer to a PVRTextureHeaderV3 struct. Modified to
contain the header data of the returned texture Ignored if NULL.
@Input bAllowDecompress Allow decompression if PVRTC is not supported in hardware.
@Input nLoadFromLevel Which mip map level to start loading from (0=all)
@Input texPtr If null, texture follows header, else texture is here.
@Modified pMetaData If a valid map is supplied, this will return any and all
MetaDataBlocks stored in the texture, organised by DevFourCC
then identifier. Supplying NULL will ignore all MetaData.
@Return PVR_SUCCESS on success
@Description Allows textures to be stored in C header files and loaded in. Can load parts of a
mip mapped texture (i.e. skipping the highest detailed levels). In OpenGL Cube Map, each
texture's up direction is defined as next (view direction, up direction),
(+x,-y)(-x,-y)(+y,+z)(-y,-z)(+z,-y)(-z,-y).
Sets the texture MIN/MAG filter to GL_LINEAR_MIPMAP_NEAREST/GL_LINEAR
if mip maps are present, GL_LINEAR/GL_LINEAR otherwise.
*****************************************************************************/
EPVRTError PVRTTextureLoadFromPointer( const void* pointer,
GLuint *const texName,
const void *psTextureHeader,
bool bAllowDecompress,
const unsigned int nLoadFromLevel,
const void * const texPtr,
CPVRTMap<unsigned int, CPVRTMap<unsigned int, MetaDataBlock> > *pMetaData)
{
//Compression bools
bool bIsCompressedFormatSupported=false;
bool bIsCompressedFormat=false;
bool bIsLegacyPVR=false;
bool bUsesTexImage3D=false;
//Texture setup
PVRTextureHeaderV3 sTextureHeader;
PVRTuint8* pTextureData=NULL;
//Just in case header and pointer for decompression.
PVRTextureHeaderV3 sTextureHeaderDecomp;
void* pDecompressedData=NULL;
//Check if it's an old header format
if((*(PVRTuint32*)pointer)!=PVRTEX3_IDENT)
{
//Convert the texture header to the new format.
PVRTConvertOldTextureHeaderToV3((PVR_Texture_Header*)pointer,sTextureHeader,pMetaData);
//Get the texture data.
pTextureData = texPtr? (PVRTuint8*)texPtr:(PVRTuint8*)pointer+*(PVRTuint32*)pointer;
bIsLegacyPVR=true;
}
else
{
//Get the header from the main pointer.
sTextureHeader=*(PVRTextureHeaderV3*)pointer;
//Get the texture data.
pTextureData = texPtr? (PVRTuint8*)texPtr:(PVRTuint8*)pointer+PVRTEX3_HEADERSIZE+sTextureHeader.u32MetaDataSize;
if (pMetaData)
{
//Read in all the meta data.
PVRTuint32 metaDataSize=0;
while (metaDataSize<sTextureHeader.u32MetaDataSize)
{
//Read the DevFourCC and advance the pointer offset.
PVRTuint32 DevFourCC=*(PVRTuint32*)((PVRTuint8*)pointer+PVRTEX3_HEADERSIZE+metaDataSize);
metaDataSize+=sizeof(DevFourCC);
//Read the Key and advance the pointer offset.
PVRTuint32 u32Key=*(PVRTuint32*)((PVRTuint8*)pointer+PVRTEX3_HEADERSIZE+metaDataSize);
metaDataSize+=sizeof(u32Key);
//Read the DataSize and advance the pointer offset.
PVRTuint32 u32DataSize = *(PVRTuint32*)((PVRTuint8*)pointer+PVRTEX3_HEADERSIZE+metaDataSize);
metaDataSize+=sizeof(u32DataSize);
//Get the current meta data.
MetaDataBlock& currentMetaData = (*pMetaData)[DevFourCC][u32Key];
//Assign the values to the meta data.
currentMetaData.DevFOURCC=DevFourCC;
currentMetaData.u32Key=u32Key;
currentMetaData.u32DataSize=u32DataSize;
//Check for data, if there is any, read it into the meta data.
if(u32DataSize > 0)
{
//Allocate memory.
currentMetaData.Data = new PVRTuint8[u32DataSize];
//Copy the data.
memcpy(currentMetaData.Data, ((PVRTuint8*)pointer+PVRTEX3_HEADERSIZE+metaDataSize), u32DataSize);
//Advance the meta data size.
metaDataSize+=u32DataSize;
}
}
}
}
//Return the PVRTextureHeader.
if (psTextureHeader)
{
*(PVRTextureHeaderV3*)psTextureHeader=sTextureHeader;
}
//Setup GL Texture format values.
GLenum eTextureFormat = 0;
GLenum eTextureInternalFormat = 0; // often this is the same as textureFormat, but not for BGRA8888 on iOS, for instance
GLenum eTextureType = 0;
//Get the OGLES format values.
PVRTGetOGLES3TextureFormat(sTextureHeader,eTextureInternalFormat,eTextureFormat,eTextureType);
bool bIsPVRTCSupported = CPVRTgles3Ext::IsGLExtensionSupported("GL_IMG_texture_compression_pvrtc");
#ifndef TARGET_OS_IPHONE
bool bIsBGRA8888Supported = CPVRTgles3Ext::IsGLExtensionSupported("GL_IMG_texture_format_BGRA8888");
#else
bool bIsBGRA8888Supported = CPVRTgles3Ext::IsGLExtensionSupported("GL_APPLE_texture_format_BGRA8888");
#endif
#ifndef TARGET_OS_IPHONE
bool bIsETCSupported = CPVRTgles3Ext::IsGLExtensionSupported("GL_OES_compressed_ETC1_RGB8_texture");
#endif
//Check for compressed formats
if (eTextureFormat==0 && eTextureType==0 && eTextureInternalFormat!=0)
{
if (eTextureInternalFormat>=GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG && eTextureInternalFormat<=GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG)
{
//Check for PVRTCI support.
if(bIsPVRTCSupported)
{
bIsCompressedFormatSupported = bIsCompressedFormat = true;
}
else
{
//Try to decompress the texture.
if(bAllowDecompress)
{
//Output a warning.
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer warning: PVRTC not supported. Converting to RGBA8888 instead.\n");
//Modify boolean values.
bIsCompressedFormatSupported = false;
bIsCompressedFormat = true;
//Check if it's 2bpp.
bool bIs2bppPVRTC = (eTextureInternalFormat==GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG || eTextureInternalFormat==GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG);
//Change texture format.
eTextureFormat = eTextureInternalFormat = GL_RGBA;
eTextureType = GL_UNSIGNED_BYTE;
//Create a near-identical texture header for the decompressed header.
sTextureHeaderDecomp = sTextureHeader;
sTextureHeaderDecomp.u32ChannelType=ePVRTVarTypeUnsignedByteNorm;
sTextureHeaderDecomp.u32ColourSpace=ePVRTCSpacelRGB;
sTextureHeaderDecomp.u64PixelFormat=PVRTGENPIXELID4('r','g','b','a',8,8,8,8);
//Allocate enough memory for the decompressed data. OGLES2, so only decompress one surface/face.
pDecompressedData = malloc(PVRTGetTextureDataSize(sTextureHeaderDecomp, PVRTEX_ALLMIPLEVELS, false, true) );
//Check the malloc.
if (!pDecompressedData)
{
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer error: Unable to allocate memory to decompress texture.\n");
return PVR_FAIL;
}
//Get the dimensions for the current MIP level.
PVRTuint32 uiMIPWidth = sTextureHeaderDecomp.u32Width>>nLoadFromLevel;
PVRTuint32 uiMIPHeight = sTextureHeaderDecomp.u32Height>>nLoadFromLevel;
//Setup temporary variables.
PVRTuint8* pTempDecompData = (PVRTuint8*)pDecompressedData;
PVRTuint8* pTempCompData = (PVRTuint8*)pTextureData;
if (bIsLegacyPVR)
{
//Decompress all the MIP levels.
for (PVRTuint32 uiFace=0;uiFace<sTextureHeader.u32NumFaces;++uiFace)
{
for (PVRTuint32 uiMIPMap=nLoadFromLevel;uiMIPMap<sTextureHeader.u32MIPMapCount;++uiMIPMap)
{
//Get the face offset. Varies per MIP level.
PVRTuint32 decompressedFaceOffset = PVRTGetTextureDataSize(sTextureHeaderDecomp, uiMIPMap, false, false);
PVRTuint32 compressedFaceOffset = PVRTGetTextureDataSize(sTextureHeader, uiMIPMap, false, false);
//Decompress the texture data.
PVRTDecompressPVRTC(pTempCompData,bIs2bppPVRTC?1:0,uiMIPWidth,uiMIPHeight,pTempDecompData);
//Move forward through the pointers.
pTempDecompData+=decompressedFaceOffset;
pTempCompData+=compressedFaceOffset;
//Work out the current MIP dimensions.
uiMIPWidth=PVRT_MAX(1,uiMIPWidth>>1);
uiMIPHeight=PVRT_MAX(1,uiMIPHeight>>1);
}
//Reset the dims.
uiMIPWidth=sTextureHeader.u32Width;
uiMIPHeight=sTextureHeader.u32Height;
}
}
else
{
//Decompress all the MIP levels.
for (PVRTuint32 uiMIPMap=nLoadFromLevel;uiMIPMap<sTextureHeader.u32MIPMapCount;++uiMIPMap)
{
//Get the face offset. Varies per MIP level.
PVRTuint32 decompressedFaceOffset = PVRTGetTextureDataSize(sTextureHeaderDecomp, uiMIPMap, false, false);
PVRTuint32 compressedFaceOffset = PVRTGetTextureDataSize(sTextureHeader, uiMIPMap, false, false);
for (PVRTuint32 uiFace=0;uiFace<sTextureHeader.u32NumFaces;++uiFace)
{
//Decompress the texture data.
PVRTDecompressPVRTC(pTempCompData,bIs2bppPVRTC?1:0,uiMIPWidth,uiMIPHeight,pTempDecompData);
//Move forward through the pointers.
pTempDecompData+=decompressedFaceOffset;
pTempCompData+=compressedFaceOffset;
}
//Work out the current MIP dimensions.
uiMIPWidth=PVRT_MAX(1,uiMIPWidth>>1);
uiMIPHeight=PVRT_MAX(1,uiMIPHeight>>1);
}
}
}
else
{
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer error: PVRTC not supported.\n");
return PVR_FAIL;
}
}
}
/*!***************************************************************************
@Function PVRTTextureLoadFromPointer
@Input pointer Pointer to header-texture's structure
@Modified texName the OpenGL ES texture name as returned by glBindTexture
@Modified psTextureHeader Pointer to a PVR_Texture_Header struct. Modified to
contain the header data of the returned texture Ignored if NULL.
@Input bAllowDecompress Allow decompression if PVRTC is not supported in hardware.
@Input nLoadFromLevel Which mipmap level to start loading from (0=all)
@Input texPtr If null, texture follows header, else texture is here.
@Return PVR_SUCCESS on success
@Description Allows textures to be stored in C header files and loaded in. Can load parts of a
mipmaped texture (ie skipping the highest detailed levels).In OpenGL Cube Map, each
texture's up direction is defined as next (view direction, up direction),
(+x,-y)(-x,-y)(+y,+z)(-y,-z)(+z,-y)(-z,-y).
Sets the texture MIN/MAG filter to GL_LINEAR_MIPMAP_NEAREST/GL_LINEAR
if mipmaps are present, GL_LINEAR/GL_LINEAR otherwise.
*****************************************************************************/
EPVRTError PVRTTextureLoadFromPointer( const void* pointer,
GLuint *const texName,
const void *psTextureHeader,
bool bAllowDecompress,
const unsigned int nLoadFromLevel,
const void * const texPtr)
{
PVR_Texture_Header* psPVRHeader = (PVR_Texture_Header*)pointer;
unsigned int u32NumSurfs;
// perform checks for old PVR psPVRHeader
if(psPVRHeader->dwHeaderSize!=sizeof(PVR_Texture_Header))
{ // Header V1
if(psPVRHeader->dwHeaderSize==PVRTEX_V1_HEADER_SIZE)
{ // react to old psPVRHeader: i.e. fill in numsurfs as this is missing from old header
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer warning: this is an old pvr"
" - you can use PVRTexTool to update its header.\n");
if(psPVRHeader->dwpfFlags&PVRTEX_CUBEMAP)
u32NumSurfs = 6;
else
u32NumSurfs = 1;
}
else
{ // not a pvr at all
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer failed: not a valid pvr.\n");
return PVR_FAIL;
}
}
else
{ // Header V2
if(psPVRHeader->dwNumSurfs<1)
{ // encoded with old version of PVRTexTool before zero numsurfs bug found.
if(psPVRHeader->dwpfFlags & PVRTEX_CUBEMAP)
u32NumSurfs = 6;
else
u32NumSurfs = 1;
}
else
{
u32NumSurfs = psPVRHeader->dwNumSurfs;
}
}
GLuint textureName;
GLenum eTextureFormat = 0;
GLenum eTextureInternalFormat = 0; // often this is the same as textureFormat, but not for BGRA8888 on the iPhone, for instance
GLenum eTextureType = 0;
GLenum eTarget;
bool bIsPVRTCSupported = CPVRTgles2Ext::IsGLExtensionSupported("GL_IMG_texture_compression_pvrtc");
#ifndef TARGET_OS_IPHONE
bool bIsBGRA8888Supported = CPVRTgles2Ext::IsGLExtensionSupported("GL_IMG_texture_format_BGRA8888");
#else
bool bIsBGRA8888Supported = CPVRTgles2Ext::IsGLExtensionSupported("GL_APPLE_texture_format_BGRA8888");
#endif
bool bIsFloat16Supported = CPVRTgles2Ext::IsGLExtensionSupported("GL_OES_texture_half_float");
bool bIsFloat32Supported = CPVRTgles2Ext::IsGLExtensionSupported("GL_OES_texture_float");
#ifndef TARGET_OS_IPHONE
bool bIsETCSupported = CPVRTgles2Ext::IsGLExtensionSupported("GL_OES_compressed_ETC1_RGB8_texture");
#endif
*texName = 0; // install warning value
bool bIsCompressedFormatSupported = false, bIsCompressedFormat = false;
/* Only accept untwiddled data UNLESS texture format is PVRTC */
if ( ((psPVRHeader->dwpfFlags & PVRTEX_TWIDDLE) == PVRTEX_TWIDDLE)
&& ((psPVRHeader->dwpfFlags & PVRTEX_PIXELTYPE)!=OGL_PVRTC2)
&& ((psPVRHeader->dwpfFlags & PVRTEX_PIXELTYPE)!=OGL_PVRTC4) )
{
// We need to load untwiddled textures -- GL will twiddle for us.
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer failed: texture should be untwiddled.\n");
return PVR_FAIL;
}
unsigned int ePixelType = psPVRHeader->dwpfFlags & PVRTEX_PIXELTYPE;
switch(ePixelType)
{
case OGL_RGBA_4444:
eTextureFormat = eTextureInternalFormat = GL_RGBA;
eTextureType = GL_UNSIGNED_SHORT_4_4_4_4;
break;
case OGL_RGBA_5551:
eTextureFormat = eTextureInternalFormat = GL_RGBA ;
eTextureType = GL_UNSIGNED_SHORT_5_5_5_1;
break;
case OGL_RGBA_8888:
eTextureFormat = eTextureInternalFormat = GL_RGBA;
eTextureType = GL_UNSIGNED_BYTE ;
break;
/* New OGL Specific Formats Added */
case OGL_RGB_565:
eTextureFormat = eTextureInternalFormat = GL_RGB ;
eTextureType = GL_UNSIGNED_SHORT_5_6_5;
break;
case OGL_RGB_555:
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer failed: pixel type OGL_RGB_555 not supported.\n");
return PVR_FAIL; // Deal with exceptional case
case OGL_RGB_888:
eTextureFormat = eTextureInternalFormat = GL_RGB ;
eTextureType = GL_UNSIGNED_BYTE;
break;
case OGL_I_8:
eTextureFormat = eTextureInternalFormat = GL_LUMINANCE;
eTextureType = GL_UNSIGNED_BYTE;
break;
case OGL_AI_88:
eTextureFormat = eTextureInternalFormat = GL_LUMINANCE_ALPHA ;
eTextureType = GL_UNSIGNED_BYTE;
break;
case MGLPT_PVRTC2:
case OGL_PVRTC2:
if(bIsPVRTCSupported)
{
bIsCompressedFormatSupported = bIsCompressedFormat = true;
eTextureFormat = psPVRHeader->dwAlphaBitMask==0 ? GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG : GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG ; // PVRTC2
}
else
{
if(bAllowDecompress)
{
bIsCompressedFormatSupported = false;
bIsCompressedFormat = true;
eTextureFormat = eTextureInternalFormat = GL_RGBA;
eTextureType = GL_UNSIGNED_BYTE;
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer warning: PVRTC2 not supported. Converting to RGBA8888 instead.\n");
}
else
{
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer error: PVRTC2 not supported.\n");
return PVR_FAIL;
}
}
break;
case MGLPT_PVRTC4:
case OGL_PVRTC4:
if(bIsPVRTCSupported)
{
bIsCompressedFormatSupported = bIsCompressedFormat = true;
eTextureFormat = psPVRHeader->dwAlphaBitMask==0 ? GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG : GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG ; // PVRTC4
}
else
{
if(bAllowDecompress)
{
bIsCompressedFormatSupported = false;
bIsCompressedFormat = true;
eTextureFormat = eTextureInternalFormat = GL_RGBA;
eTextureType = GL_UNSIGNED_BYTE;
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer warning: PVRTC4 not supported. Converting to RGBA8888 instead.\n");
}
else
{
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer error: PVRTC4 not supported.\n");
return PVR_FAIL;
}
}
break;
case OGL_A_8:
eTextureFormat = eTextureInternalFormat = GL_ALPHA;
eTextureType = GL_UNSIGNED_BYTE;
break;
case OGL_BGRA_8888:
if(bIsBGRA8888Supported)
{
eTextureType = GL_UNSIGNED_BYTE;
#ifndef __APPLE__
eTextureFormat = eTextureInternalFormat = GL_BGRA;
#else
eTextureFormat = GL_BGRA;
eTextureInternalFormat = GL_RGBA;
#endif
}
else
{
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer failed: Unable to load GL_BGRA texture as extension GL_IMG_texture_format_BGRA8888 is unsupported.\n");
return PVR_FAIL;
}
break;
case D3D_ABGR_16161616F:
if(bIsFloat16Supported)
{
eTextureFormat = eTextureInternalFormat = GL_RGBA ;
eTextureType = GL_HALF_FLOAT_OES;
}
break;
case D3D_ABGR_32323232F:
if(bIsFloat32Supported)
{
eTextureFormat = eTextureInternalFormat = GL_RGBA ;
eTextureType = GL_FLOAT;
}
break;
#ifndef TARGET_OS_IPHONE
case ETC_RGB_4BPP:
if(bIsETCSupported)
{
bIsCompressedFormatSupported = bIsCompressedFormat = true;
eTextureFormat = GL_ETC1_RGB8_OES;
}
else
{
if(bAllowDecompress)
{
bIsCompressedFormatSupported = false;
bIsCompressedFormat = true;
eTextureFormat = GL_RGBA;
eTextureType = GL_UNSIGNED_BYTE;
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer warning: ETC not supported. Converting to RGBA8888 instead.\n");
}
else
{
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer error: ETC not supported.\n");
return PVR_FAIL;
}
}
break;
#endif
default: // NOT SUPPORTED
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer failed: pixel type not supported.\n");
return PVR_FAIL;
}
// load the texture up
glPixelStorei(GL_UNPACK_ALIGNMENT,1); // Never have row-aligned in psPVRHeaders
glGenTextures(1, &textureName);
// check that this data is cube map data or not.
if(psPVRHeader->dwpfFlags & PVRTEX_CUBEMAP)
eTarget = GL_TEXTURE_CUBE_MAP;
else
eTarget = GL_TEXTURE_2D;
glBindTexture(eTarget, textureName);
if(glGetError())
{
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer failed: glBindTexture() failed.\n");
return PVR_FAIL;
}
for(unsigned int i=0; i<u32NumSurfs; i++)
{
char *theTexturePtr = (texPtr? (char*)texPtr : (char*)psPVRHeader + psPVRHeader->dwHeaderSize) + psPVRHeader->dwTextureDataSize * i;
char *theTextureToLoad = 0;
int nMIPMapLevel;
int nTextureLevelsNeeded = (psPVRHeader->dwpfFlags & PVRTEX_MIPMAP)? psPVRHeader->dwMipMapCount : 0;
unsigned int nSizeX= psPVRHeader->dwWidth, nSizeY = psPVRHeader->dwHeight;
unsigned int CompressedImageSize = 0;
for(nMIPMapLevel = 0; nMIPMapLevel <= nTextureLevelsNeeded; nSizeX=PVRT_MAX(nSizeX/2, (unsigned int)1), nSizeY=PVRT_MAX(nSizeY/2, (unsigned int)1), nMIPMapLevel++)
{
theTextureToLoad = theTexturePtr;
// Load the Texture
// If the texture is PVRTC or ETC then use GLCompressedTexImage2D
if(bIsCompressedFormat)
{
/* Calculate how many bytes this MIP level occupies */
if ((psPVRHeader->dwpfFlags & PVRTEX_PIXELTYPE)==OGL_PVRTC2)
{
CompressedImageSize = ( PVRT_MAX(nSizeX, PVRTC2_MIN_TEXWIDTH) * PVRT_MAX(nSizeY, PVRTC2_MIN_TEXHEIGHT) * psPVRHeader->dwBitCount) / 8;
}
else if ((psPVRHeader->dwpfFlags & PVRTEX_PIXELTYPE)==OGL_PVRTC4)
{
CompressedImageSize = ( PVRT_MAX(nSizeX, PVRTC4_MIN_TEXWIDTH) * PVRT_MAX(nSizeY, PVRTC4_MIN_TEXHEIGHT) * psPVRHeader->dwBitCount) / 8;
}
else
{// ETC
CompressedImageSize = ( PVRT_MAX(nSizeX, ETC_MIN_TEXWIDTH) * PVRT_MAX(nSizeY, ETC_MIN_TEXHEIGHT) * psPVRHeader->dwBitCount) / 8;
}
if(((signed int)nMIPMapLevel - (signed int)nLoadFromLevel) >= 0)
{
if(bIsCompressedFormatSupported)
{
if(psPVRHeader->dwpfFlags&PVRTEX_CUBEMAP)
{
/* Load compressed texture data at selected MIP level */
glCompressedTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X+i, nMIPMapLevel-nLoadFromLevel, eTextureFormat, nSizeX, nSizeY, 0,
CompressedImageSize, theTextureToLoad);
}
else
{
/* Load compressed texture data at selected MIP level */
glCompressedTexImage2D(GL_TEXTURE_2D, nMIPMapLevel-nLoadFromLevel, eTextureFormat, nSizeX, nSizeY, 0,
CompressedImageSize, theTextureToLoad);
}
}
else
{
// Convert PVRTC to 32-bit
PVRTuint8 *u8TempTexture = (PVRTuint8*)malloc(nSizeX*nSizeY*4);
if ((psPVRHeader->dwpfFlags & PVRTEX_PIXELTYPE)==OGL_PVRTC2)
{
PVRTDecompressPVRTC(theTextureToLoad, 1, nSizeX, nSizeY, u8TempTexture);
}
else if((psPVRHeader->dwpfFlags & PVRTEX_PIXELTYPE)==OGL_PVRTC4)
{
PVRTDecompressPVRTC(theTextureToLoad, 0, nSizeX, nSizeY, u8TempTexture);
}
else
{ // ETC
PVRTDecompressETC(theTextureToLoad, nSizeX, nSizeY, u8TempTexture, 0);
}
if(psPVRHeader->dwpfFlags&PVRTEX_CUBEMAP)
{// Load compressed cubemap data at selected MIP level
// Upload the texture as 32-bits
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X+i,nMIPMapLevel-nLoadFromLevel,GL_RGBA,
nSizeX,nSizeY,0, GL_RGBA,GL_UNSIGNED_BYTE,u8TempTexture);
FREE(u8TempTexture);
}
else
{// Load compressed 2D data at selected MIP level
// Upload the texture as 32-bits
glTexImage2D(GL_TEXTURE_2D,nMIPMapLevel-nLoadFromLevel,GL_RGBA,
nSizeX,nSizeY,0, GL_RGBA,GL_UNSIGNED_BYTE,u8TempTexture);
FREE(u8TempTexture);
}
}
}
}
else
{
if(((signed int)nMIPMapLevel - (signed int)nLoadFromLevel) >= 0)
{
if(psPVRHeader->dwpfFlags&PVRTEX_CUBEMAP)
{
/* Load uncompressed texture data at selected MIP level */
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X+i,nMIPMapLevel-nLoadFromLevel,eTextureInternalFormat,nSizeX,nSizeY,
0, eTextureFormat,eTextureType,theTextureToLoad);
}
else
{
/* Load uncompressed texture data at selected MIP level */
glTexImage2D(GL_TEXTURE_2D,nMIPMapLevel-nLoadFromLevel,eTextureInternalFormat,nSizeX,nSizeY,0,eTextureFormat,eTextureType,theTextureToLoad);
}
}
}
if(glGetError())
{
PVRTErrorOutputDebug("PVRTTextureLoadFromPointer failed: glTexImage2D() failed.\n");
return PVR_FAIL;
}
// offset the texture pointer by one mip-map level
/* PVRTC case */
if ( bIsCompressedFormat )
{
theTexturePtr += CompressedImageSize;
}
else
{
/* New formula that takes into account bit counts inferior to 8 (e.g. 1 bpp) */
theTexturePtr += (nSizeX * nSizeY * psPVRHeader->dwBitCount + 7) / 8;
}
}
}
*texName = textureName;
if(psTextureHeader)
{
*(PVR_Texture_Header*)psTextureHeader = *psPVRHeader;
((PVR_Texture_Header*)psTextureHeader)->dwPVR = PVRTEX_IDENTIFIER;
((PVR_Texture_Header*)psTextureHeader)->dwNumSurfs = u32NumSurfs;
}
if(eTextureType==GL_FLOAT || eTextureType==GL_HALF_FLOAT_OES)
{
if(!psPVRHeader->dwMipMapCount)
{ // Texture filter modes are limited to these for float textures
glTexParameteri(eTarget, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(eTarget, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
}
else
{
glTexParameteri(eTarget, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
glTexParameteri(eTarget, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
}
}
else
{
if(!psPVRHeader->dwMipMapCount)
{
glTexParameteri(eTarget, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(eTarget, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
else
{
glTexParameteri(eTarget, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
glTexParameteri(eTarget, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
}
if(
(psPVRHeader->dwWidth & (psPVRHeader->dwWidth - 1)) |
(psPVRHeader->dwHeight & (psPVRHeader->dwHeight - 1)))
{
/*
NPOT textures requires the wrap mode to be set explicitly to
GL_CLAMP_TO_EDGE or the texture will be inconsistent.
*/
glTexParameteri(eTarget, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(eTarget, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
else
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
}
return PVR_SUCCESS;
}
int dump_tex(int argc, const char * argv[])
{
TexFile tex;
FileStream inStream;
FileStream outStream;
if (!inStream.open(argv[0], "rb"))
{
printf("Error input file %s\n", argv[0]);
return 1;
}
/* if (!outStream.open(argv[1], "wb"))
{
printf("Error output file %s\n", argv[1]);
return 1;
}*/
if (!tex.read(&inStream))
{
printf("Error input file %s\n", argv[0]);
return 1;
}
// Dump the raw rgb
unsigned int size = tex.mHeader.size * tex.mHeader.size * 4;
unsigned char *outputData = (unsigned char *)malloc(size);
int result = 0;
int actualSize = 0;
const char *fmt = "UNKN";
bool hasMips = tex.mHeader.flags & 0x20;
if (tex.mHeader.unknown0[1] == 11 || tex.mHeader.unknown0[1] == 13) // PVRTC
{
unsigned int bytes = PVRTDecompressPVRTC(tex.mData, 0, tex.mHeader.size, tex.mHeader.size, outputData);
result = stbi_write_tga(argv[1], tex.mHeader.size, tex.mHeader.size, STBI_rgb_alpha, outputData);
fmt = "PVRTC";
actualSize = ( std::max((int)tex.mHeader.size, 8) * std::max((int)tex.mHeader.size, 8) * 4 + 7) / 8;
}
else if (tex.mHeader.unknown0[1] == 1) // RGBA
{
memcpy(outputData, tex.mData, tex.mHeader.size*tex.mHeader.size*4);
//result = stbi_write_tga(argv[1], tex.mHeader.size, tex.mHeader.size, STBI_rgb_alpha, outputData);
fmt = "RGBA";
actualSize = tex.mHeader.size*tex.mHeader.size*4;
}
else if (tex.mHeader.unknown0[1] == 0) // RGB
{
memcpy(outputData, tex.mData, tex.mHeader.size*tex.mHeader.size*3);
//result = stbi_write_tga(argv[1], tex.mHeader.size, tex.mHeader.size, STBI_rgb, outputData);
fmt = "RGB ";
actualSize = tex.mHeader.size*tex.mHeader.size*3;
}
else if (tex.mHeader.unknown0[1] == 6) // RGBA5551
{
unsigned short *in = (unsigned short*)tex.mData;
unsigned char *out = outputData;
for (int i=0; i<tex.mHeader.size*tex.mHeader.size; i++)
{
unsigned short alpha_mask = 0x800;
unsigned short red_mask = 0x7C00;
unsigned short green_mask = 0x3E0;
unsigned short blue_mask = 0x1F;
unsigned short inv = *in;
inv >>= 1;
*out++ = (inv & blue_mask) << 3;
*out++ = ((inv & green_mask) >> 5) << 3;
*out++ = ((inv & red_mask) >> 10) << 3;
*out++ = (*in & 0x1) ? 255 : 0;
in++;
}
//result = stbi_write_tga(argv[1], tex.mHeader.size, tex.mHeader.size, STBI_rgb_alpha, outputData);
fmt = "5551";
actualSize = tex.mHeader.size*tex.mHeader.size*2;
}
ImageWidget(const QString& fileName, const QString& title, QWidget* parent = 0) : QWidget(parent), title_(title)
{
if (isBrushSet_ == false)
{
QImage brushImage(64, 64, QImage::Format_RGB32);
for (int y = 0; y < 64; ++y)
for (int x = 0; x < 64; ++x)
{
int u = x / 32;
int v = y / 32;
int b = (u ^ v) & 1;
brushImage.setPixel(QPoint(x, y), b ? 0xb0b0b0 : 0xe0e0e0);
}
brush_ = QBrush(brushImage);
isBrushSet_ = true;
}
QFileInfo fileInfo(fileName);
#if 0 // we drop support for pvrt
if (fileInfo.suffix().toLower() == "pvr")
{
CPVRTResourceFile file(qPrintable(fileName));
if (file.IsOpen() == true && file.Size() >= sizeof(PVR_Texture_Header))
{
PVR_Texture_Header* header = (PVR_Texture_Header*)file.DataPtr();
int width = header->dwWidth;
int height = header->dwHeight;
PVRTuint32 pixelType = header->dwpfFlags & PVRTEX_PIXELTYPE;
if (pixelType == OGL_PVRTC2 || pixelType == OGL_PVRTC4)
{
void* ptr = (char*)file.DataPtr() + header->dwHeaderSize;
unsigned char* resultImage = (unsigned char*)malloc(width * height * 4);
PVRTDecompressPVRTC(ptr, pixelType == OGL_PVRTC2, width, height, resultImage);
image_ = QImage(width, height, QImage::Format_ARGB32);
for (int y = 0; y < height; ++y)
for (int x = 0; x < width; ++x)
{
int index = (x + y * width) * 4;
unsigned char r = resultImage[index + 0];
unsigned char g = resultImage[index + 1];
unsigned char b = resultImage[index + 2];
unsigned char a = resultImage[index + 3];
image_.setPixel(x, y, qRgba(r, g, b, a));
}
free(resultImage);
}
}
}
else
#endif
image_.load(fileName);
if (image_.width() > 0 && image_.height() > 0)
{
info_ = QString("%1x%2").arg(QString::number(image_.width()), QString::number(image_.height()));
}
}
