451       if (!png_memcmp(chunk_name, png_IDAT, 4))  in png_read_info()
455       if (!png_memcmp(chunk_name, png_IHDR, 4))  in png_read_info()
457       else if (!png_memcmp(chunk_name, png_IEND, 4))  in png_read_info()
462          if (!png_memcmp(chunk_name, png_IDAT, 4))  in png_read_info()
465          if (!png_memcmp(chunk_name, png_PLTE, 4))  in png_read_info()
467          else if (!png_memcmp(chunk_name, png_IDAT, 4))  in png_read_info()
478       else if (!png_memcmp(chunk_name, png_PLTE, 4))  in png_read_info()
480       else if (!png_memcmp(chunk_name, png_IDAT, 4))  in png_read_info()
493       else if (!png_memcmp(chunk_name, png_bKGD, 4))  in png_read_info()
497       else if (!png_memcmp(chunk_name, png_cHRM, 4))  in png_read_info()
501       else if (!png_memcmp(chunk_name, png_gAMA, 4))  in png_read_info()
505       else if (!png_memcmp(chunk_name, png_hIST, 4))  in png_read_info()
509       else if (!png_memcmp(chunk_name, png_oFFs, 4))  in png_read_info()
513       else if (!png_memcmp(chunk_name, png_pCAL, 4))  in png_read_info()
517       else if (!png_memcmp(chunk_name, png_sCAL, 4))  in png_read_info()
521       else if (!png_memcmp(chunk_name, png_pHYs, 4))  in png_read_info()
525       else if (!png_memcmp(chunk_name, png_sBIT, 4))  in png_read_info()
529       else if (!png_memcmp(chunk_name, png_sRGB, 4))  in png_read_info()
533       else if (!png_memcmp(chunk_name, png_iCCP, 4))  in png_read_info()
537       else if (!png_memcmp(chunk_name, png_sPLT, 4))  in png_read_info()
541       else if (!png_memcmp(chunk_name, png_tEXt, 4))  in png_read_info()
545       else if (!png_memcmp(chunk_name, png_tIME, 4))  in png_read_info()
549       else if (!png_memcmp(chunk_name, png_tRNS, 4))  in png_read_info()
553       else if (!png_memcmp(chunk_name, png_zTXt, 4))  in png_read_info()
557       else if (!png_memcmp(chunk_name, png_iTXt, 4))  in png_read_info()
758             if (png_memcmp(png_ptr->chunk_name, png_IDAT, 4))  in png_read_row()
1184       if (!png_memcmp(chunk_name, png_IHDR, 4))  in png_read_end()
1186       else if (!png_memcmp(chunk_name, png_IEND, 4))  in png_read_end()
1191          if (!png_memcmp(chunk_name, png_IDAT, 4))  in png_read_end()
1197          if (!png_memcmp(chunk_name, png_PLTE, 4))  in png_read_end()
1201       else if (!png_memcmp(chunk_name, png_IDAT, 4))  in png_read_end()
1210       else if (!png_memcmp(chunk_name, png_PLTE, 4))  in png_read_end()
1213       else if (!png_memcmp(chunk_name, png_bKGD, 4))  in png_read_end()
1217       else if (!png_memcmp(chunk_name, png_cHRM, 4))  in png_read_end()
1221       else if (!png_memcmp(chunk_name, png_gAMA, 4))  in png_read_end()
1225       else if (!png_memcmp(chunk_name, png_hIST, 4))  in png_read_end()
1229       else if (!png_memcmp(chunk_name, png_oFFs, 4))  in png_read_end()
1233       else if (!png_memcmp(chunk_name, png_pCAL, 4))  in png_read_end()
1237       else if (!png_memcmp(chunk_name, png_sCAL, 4))  in png_read_end()
1241       else if (!png_memcmp(chunk_name, png_pHYs, 4))  in png_read_end()
1245       else if (!png_memcmp(chunk_name, png_sBIT, 4))  in png_read_end()
1249       else if (!png_memcmp(chunk_name, png_sRGB, 4))  in png_read_end()
1253       else if (!png_memcmp(chunk_name, png_iCCP, 4))  in png_read_end()
1257       else if (!png_memcmp(chunk_name, png_sPLT, 4))  in png_read_end()
1261       else if (!png_memcmp(chunk_name, png_tEXt, 4))  in png_read_end()
1265       else if (!png_memcmp(chunk_name, png_tIME, 4))  in png_read_end()
1269       else if (!png_memcmp(chunk_name, png_tRNS, 4))  in png_read_end()
1273       else if (!png_memcmp(chunk_name, png_zTXt, 4))  in png_read_end()
1277       else if (!png_memcmp(chunk_name, png_iTXt, 4))  in png_read_end()