ILboolean iLoadWdpInternal(/*ILconst_string FileName*/)
{
ERR err = WMP_errSuccess;
PKFactory* pFactory = NULL;
PKCodecFactory* pCodecFactory = NULL;
PKImageDecode* pDecoder = NULL;
PKPixelInfo PI;
PKPixelFormatGUID guidPixFormat;
PKFormatConverter* pConverter = NULL;
U32 cFrame = 0, i = 0;
PKRect Rect;
struct WMPStream* pEncodeStream = NULL;
PKImageEncode* pEncoder = NULL;
//Call(PKCreateFactory(&pFactory, PK_SDK_VERSION));
//Call(PKCreateCodecFactory(&pCodecFactory, WMP_SDK_VERSION));
//Call(pCodecFactory->CreateDecoderFromFile(FileName, &pDecoder));
Call(ilPKCreateFactory(&pFactory, PK_SDK_VERSION));
Call(PKCreateCodecFactory(&pCodecFactory, WMP_SDK_VERSION));
Call(ilPKCodecFactory_CreateDecoderFromFile(&pDecoder));
//guidPixFormat = GUID_PKPixelFormat24bppRGB;
guidPixFormat = GUID_PKPixelFormat32bppBGRA;
//guidPixFormat = GUID_PKPixelFormat8bppGray;
//guidPixFormat = GUID_PKPixelFormat16bppGray;
// Color transcoding
if (IsEqualGUID(&guidPixFormat, &GUID_PKPixelFormat8bppGray) || IsEqualGUID(&guidPixFormat, &GUID_PKPixelFormat16bppGray)){ // ** => Y transcoding
pDecoder->guidPixFormat = guidPixFormat;
pDecoder->WMP.wmiI.cfColorFormat = Y_ONLY;
}
else if(IsEqualGUID(&guidPixFormat, &GUID_PKPixelFormat24bppRGB) && pDecoder->WMP.wmiI.cfColorFormat == CMYK){ // CMYK = > RGB
pDecoder->WMP.wmiI.cfColorFormat = CF_RGB;
pDecoder->guidPixFormat = guidPixFormat;
pDecoder->WMP.wmiI.bRGB = 1; //RGB
}
PI.pGUIDPixFmt = &guidPixFormat;
PixelFormatLookup(&PI, LOOKUP_FORWARD);
pDecoder->WMP.wmiSCP.bfBitstreamFormat = 0;
pDecoder->WMP.wmiSCP.uAlphaMode = 0;
pDecoder->WMP.wmiSCP.sbSubband = SB_ALL;
pDecoder->WMP.bIgnoreOverlap = FALSE;
pDecoder->WMP.wmiI.cfColorFormat = PI.cfColorFormat;
pDecoder->WMP.wmiI.bdBitDepth = PI.bdBitDepth;
pDecoder->WMP.wmiI.cBitsPerUnit = PI.cbitUnit;
//==== Validate thumbnail decode parameters =====
pDecoder->WMP.wmiI.cThumbnailWidth = pDecoder->WMP.wmiI.cWidth;
pDecoder->WMP.wmiI.cThumbnailHeight = pDecoder->WMP.wmiI.cHeight;
pDecoder->WMP.wmiI.bSkipFlexbits = FALSE;
pCodecFactory->CreateFormatConverter(&pConverter);
pConverter->Initialize(pConverter, pDecoder, NULL, guidPixFormat);
// Right now, we are just assuming one frame.
// @TODO: Deal with multiple frames.
//pDecoder->GetFrameCount(pDecoder, &cFrame);
//pDecoder->SelectFrame(pDecoder, 1);
if (!ilTexImage(pDecoder->uWidth, pDecoder->uHeight, 1, 4, IL_BGRA, IL_UNSIGNED_BYTE, NULL))
goto Cleanup;
//ilTexImage(pDecoder->uWidth, pDecoder->uHeight, 1, 1, IL_LUMINANCE, IL_UNSIGNED_BYTE, Data);
pFactory->CreateStreamFromMemory(&pEncodeStream, iCurImage->Data, iCurImage->SizeOfData);
iWmpDecAppCreateEncoderFromExt(pCodecFactory, ".wdp", &pEncoder);
pEncoder->Initialize(pEncoder, pEncodeStream, ".wdp", 0);
pEncoder->pStream->GetPos(pEncoder->pStream, &pEncoder->offStart);
// Set the region that we want to be the whole image.
Rect.X = 0; Rect.Y = 0; Rect.Height = pDecoder->uHeight; Rect.Width = pDecoder->uWidth;
pEncoder->SetPixelFormat(pEncoder, guidPixFormat);
pEncoder->SetSize(pEncoder, Rect.Width, Rect.Height);
pEncoder->WriteSource = PKImageEncode_Transcode;
pEncoder->WriteSource(pEncoder, pConverter, &Rect);
Cleanup:
// Release everything all at the end.
PKImageDecode_Release(&pDecoder);
if (pEncoder)
PKImageEncode_Release(&pEncoder);
PKCreateCodecFactory_Release(&pCodecFactory);
PKCreateFactory_Release(&pFactory);
PKFormatConverter_Release(&pConverter);
if (err != WMP_errSuccess)
return IL_FALSE;
return IL_TRUE;
}
/**
Copy or convert & copy decoded pixels into the dib
@param pDecoder Decoder handle
@param out_guid_format Target guid format
@param dib Output dib
@param width Image width
@param height Image height
@return Returns 0 if successful, returns ERR otherwise
*/
static ERR
CopyPixels(PKImageDecode *pDecoder, PKPixelFormatGUID out_guid_format, FIBITMAP *dib, int width, int height) {
PKFormatConverter *pConverter = NULL; // pixel format converter
ERR error_code = 0; // error code as returned by the interface
BYTE *pb = NULL; // local buffer used for pixel format conversion
// image dimensions
const PKRect rect = {0, 0, width, height};
try {
// get input file pixel format ...
PKPixelFormatGUID in_guid_format;
error_code = pDecoder->GetPixelFormat(pDecoder, &in_guid_format);
JXR_CHECK(error_code);
// is a format conversion needed ?
if(IsEqualGUID(out_guid_format, in_guid_format)) {
// no conversion, load bytes "as is" ...
// get a pointer to dst pixel data
BYTE *dib_bits = FreeImage_GetBits(dib);
// get dst pitch (count of BYTE for stride)
const unsigned cbStride = FreeImage_GetPitch(dib);
// decode and copy bits to dst array
error_code = pDecoder->Copy(pDecoder, &rect, dib_bits, cbStride);
JXR_CHECK(error_code);
}
else {
// we need to use the conversion API ...
// allocate the pixel format converter
error_code = PKCodecFactory_CreateFormatConverter(&pConverter);
JXR_CHECK(error_code);
// set the conversion function
error_code = pConverter->Initialize(pConverter, pDecoder, NULL, out_guid_format);
JXR_CHECK(error_code);
// get the maximum stride
unsigned cbStride = 0;
{
PKPixelInfo pPIFrom;
PKPixelInfo pPITo;
pPIFrom.pGUIDPixFmt = &in_guid_format;
error_code = PixelFormatLookup(&pPIFrom, LOOKUP_FORWARD);
JXR_CHECK(error_code);
pPITo.pGUIDPixFmt = &out_guid_format;
error_code = PixelFormatLookup(&pPITo, LOOKUP_FORWARD);
JXR_CHECK(error_code);
unsigned cbStrideFrom = ((pPIFrom.cbitUnit + 7) >> 3) * width;
unsigned cbStrideTo = ((pPITo.cbitUnit + 7) >> 3) * width;
cbStride = MAX(cbStrideFrom, cbStrideTo);
}
// allocate a local decoder / encoder buffer
error_code = PKAllocAligned((void **) &pb, cbStride * height, 128);
JXR_CHECK(error_code);
// copy / convert pixels
error_code = pConverter->Copy(pConverter, &rect, pb, cbStride);
JXR_CHECK(error_code);
// now copy pixels into the dib
const size_t line_size = FreeImage_GetLine(dib);
for(int y = 0; y < height; y++) {
BYTE *src_bits = (BYTE*)(pb + y * cbStride);
BYTE *dst_bits = (BYTE*)FreeImage_GetScanLine(dib, y);
memcpy(dst_bits, src_bits, line_size);
}
// free the local buffer
PKFreeAligned((void **) &pb);
// free the pixel format converter
PKFormatConverter_Release(&pConverter);
}
// FreeImage DIB are upside-down relative to usual graphic conventions
FreeImage_FlipVertical(dib);
// post-processing ...
// -------------------
// swap RGB as needed
#if FREEIMAGE_COLORORDER == FREEIMAGE_COLORORDER_BGR
if(IsEqualGUID(out_guid_format, GUID_PKPixelFormat24bppRGB) || IsEqualGUID(out_guid_format, GUID_PKPixelFormat32bppRGB)) {
SwapRedBlue32(dib);
}
#elif FREEIMAGE_COLORORDER == FREEIMAGE_COLORORDER_RGB
if(IsEqualGUID(out_guid_format, GUID_PKPixelFormat24bppBGR) || IsEqualGUID(out_guid_format, GUID_PKPixelFormat32bppBGR)) {
SwapRedBlue32(dib);
}
#endif
return WMP_errSuccess;
} catch(...) {
// free the local buffer
PKFreeAligned((void **) &pb);
// free the pixel format converter
PKFormatConverter_Release(&pConverter);
return error_code;
}
}
