bool ProceduralTexture::loadPNG(char *png_map) { LodePNG::Decoder pngDecoder; std::vector<unsigned char> buffer; Logger::log("Loading png file %s..\n",png_map); LodePNG::loadFile(buffer,png_map); Logger::log("Calling PNG decoder..\n"); pngDecoder.decode(image, buffer); Logger::log("Checking decoder state..\n"); if(pngDecoder.hasError()) { Logger::log("[loadTextureFromPng] Error %d\n", pngDecoder.getError()); Logger::log(" while trying to load \'%s\'\n",png_map); return false; } width = pngDecoder.getWidth(); height = pngDecoder.getHeight(); Logger::log("PNG Decoder Info [ width: %d, height: %d ]..\n",width,height); Logger::log("image size: %d\n",image.size()); Logger::log("isGreyScale: %s\n",pngDecoder.isGreyscaleType()?"true":"false"); Logger::log("isAlphaType: %s\n",pngDecoder.isAlphaType()?"true":"false"); Logger::log("Channels: %d\n",pngDecoder.getChannels()); Logger::log("BPP: %d\n",pngDecoder.getBpp()); return true; }
static bool Load(Image *img, ImageDesc *desc, uchar *data, int data_size) { //lodepng를 기반으로 적절히 로딩하기 SR_ASSERT(data != NULL); SR_ASSERT(data_size > 0); img->image_data_.clear(); LodePNG::Decoder decoder; decoder.decode(img->image_data(), data, data_size); if(decoder.hasError()) { return false; } else { desc->width = decoder.getWidth(); desc->height = decoder.getHeight(); desc->bit_depth = decoder.getInfoPng().color.bitDepth; desc->bpp = decoder.getBpp(); desc->color_channels = decoder.getChannels(); desc->is_grayscale = decoder.isGreyscaleType() > 0 ? true : false; desc->is_alpha = decoder.isAlphaType() > 0 ? true : false; return true; } }