101 static bool readPng(IDiagnostics* diag, png_structp readPtr, png_infop infoPtr, PngInfo* outInfo) {  in readPng()  argument
108   png_read_info(readPtr, infoPtr);  in readPng()
111   png_get_IHDR(readPtr, infoPtr, &outInfo->width, &outInfo->height, &bitDepth, &colorType,  in readPng()
122   if (png_get_valid(readPtr, infoPtr, PNG_INFO_tRNS)) {  in readPng()
139   png_read_update_info(readPtr, infoPtr);  in readPng()
141   const uint32_t rowBytes = png_get_rowbytes(readPtr, infoPtr);  in readPng()
148   png_read_end(readPtr, infoPtr);  in readPng()
419 static bool writePng(IDiagnostics* diag, png_structp writePtr, png_infop infoPtr, PngInfo* info,  in writePng()  argument
490   png_set_IHDR(writePtr, infoPtr, info->width, info->height, 8, colorType, PNG_INTERLACE_NONE,  in writePng()
494     png_set_PLTE(writePtr, infoPtr, rgbPalette, paletteEntries);  in writePng()
496       png_set_tRNS(writePtr, infoPtr, alphaPalette, paletteEntries, (png_color_16p)0);  in writePng()
548     png_set_unknown_chunks(writePtr, infoPtr, unknowns, chunkCount);  in writePng()
552     png_set_unknown_chunk_location(writePtr, infoPtr, 0, PNG_HAVE_PLTE);  in writePng()
554       png_set_unknown_chunk_location(writePtr, infoPtr, 1, PNG_HAVE_PLTE);  in writePng()
559   png_write_info(writePtr, infoPtr);  in writePng()
577   png_write_end(writePtr, infoPtr);  in writePng()
587   png_get_IHDR(writePtr, infoPtr, &width, &height, &bitDepth, &colorType, &interlaceType,  in writePng()
1192   png_infop infoPtr = nullptr;  in process()  local
1203   infoPtr = png_create_info_struct(readPtr);  in process()
1204   if (!infoPtr) {  in process()
1214   if (!readPng(mDiag, readPtr, infoPtr, &pngInfo)) {  in process()
1250     png_destroy_read_struct(&readPtr, &infoPtr, nullptr);  in process()