void Compress_RG(const FasTC::CompressionJob &cj) {
rg_etc1::etc1_pack_params params;
params.m_quality = rg_etc1::cLowQuality;
rg_etc1::pack_etc1_block_init();
uint32 kBlockSz = GetBlockSize(FasTC::eCompressionFormat_ETC1);
const uint32 startBlock = cj.CoordsToBlockIdx(cj.XStart(), cj.YStart());
uint8 *outBuf = cj.OutBuf() + startBlock * kBlockSz;
const uint32 endY = std::min(cj.YEnd(), cj.Height() - 4);
uint32 startX = cj.XStart();
for(uint32 j = cj.YStart(); j <= endY; j += 4) {
const uint32 endX = j == cj.YEnd()? cj.XEnd() : cj.Width();
for(uint32 i = startX; i < endX; i += 4) {
uint32 pixels[16];
const uint32 *inPixels = reinterpret_cast<const uint32 *>(cj.InBuf());
memcpy(pixels, inPixels + j*cj.Width() + i, 4 * sizeof(uint32));
memcpy(pixels + 4, inPixels + (j+1)*cj.Width() + i, 4 * sizeof(uint32));
memcpy(pixels + 8, inPixels + (j+2)*cj.Width() + i, 4 * sizeof(uint32));
memcpy(pixels + 12, inPixels + (j+3)*cj.Width() + i, 4 * sizeof(uint32));
pack_etc1_block(outBuf, pixels, params);
outBuf += kBlockSz;
}
startX = 0;
}
}
void CompressPVRLib(const FasTC::CompressionJob &cj,
bool bTwoBitMode,
const EWrapMode) {
pvrtexture::CPVRTextureHeader pvrTexHdr;
pvrTexHdr.setPixelFormat(pvrtexture::PVRStandard8PixelType);
pvrTexHdr.setWidth(cj.Width());
pvrTexHdr.setHeight(cj.Height());
pvrTexHdr.setIsFileCompressed(false);
pvrTexHdr.setIsPreMultiplied(false);
pvrtexture::CPVRTexture pvrTex = pvrtexture::CPVRTexture(pvrTexHdr, cj.InBuf());
bool result = pvrtexture::Transcode(pvrTex,
ePVRTPF_PVRTCI_4bpp_RGBA,
ePVRTVarTypeUnsignedByte,
ePVRTCSpacelRGB,
pvrtexture::ePVRTCFast);
assert(result);
(void)result;
memcpy(cj.OutBuf(), static_cast<uint8 *>(pvrTex.getDataPtr()), cj.Width() * cj.Height() / 2);
}