103 static bool readPng(png_structp readPtr, png_infop infoPtr, PngInfo* outInfo,  in readPng()  argument
111     png_read_info(readPtr, infoPtr);  in readPng()
114     png_get_IHDR(readPtr, infoPtr, &outInfo->width, &outInfo->height, &bitDepth, &colorType,  in readPng()
125     if (png_get_valid(readPtr, infoPtr, PNG_INFO_tRNS)) {  in readPng()
142     png_read_update_info(readPtr, infoPtr);  in readPng()
144     const uint32_t rowBytes = png_get_rowbytes(readPtr, infoPtr);  in readPng()
151     png_read_end(readPtr, infoPtr);  in readPng()
414 static bool writePng(png_structp writePtr, png_infop infoPtr, PngInfo* info,  in writePng()  argument
488     png_set_IHDR(writePtr, infoPtr, info->width, info->height, 8, colorType,  in writePng()
492         png_set_PLTE(writePtr, infoPtr, rgbPalette, paletteEntries);  in writePng()
494             png_set_tRNS(writePtr, infoPtr, alphaPalette, paletteEntries, (png_color_16p) 0);  in writePng()
547         png_set_unknown_chunks(writePtr, infoPtr, unknowns, chunkCount);  in writePng()
551         png_set_unknown_chunk_location(writePtr, infoPtr, 0, PNG_HAVE_PLTE);  in writePng()
553             png_set_unknown_chunk_location(writePtr, infoPtr, 1, PNG_HAVE_PLTE);  in writePng()
558     png_write_info(writePtr, infoPtr);  in writePng()
576     png_write_end(writePtr, infoPtr);  in writePng()
586     png_get_IHDR(writePtr, infoPtr, &width, &height, &bitDepth, &colorType, &interlaceType,  in writePng()
1214     png_infop infoPtr = nullptr;  in process()  local
1225     infoPtr = png_create_info_struct(readPtr);  in process()
1226     if (!infoPtr) {  in process()
1236     if (!readPng(readPtr, infoPtr, &pngInfo, outError)) {  in process()
1271         png_destroy_read_struct(&readPtr, &infoPtr, nullptr);  in process()