[libpng16] timepng usage message, ability to cache the test set
This makes tests slightly quicker by allowing the temporary file to be created beforehand. Signed-off-by: John Bowler <jbowler@acm.org>
This commit is contained in:
John Bowler
Glenn Randers-Pehrson
parent
0df91242a2
commit
2a25fc41f6
@ -304,114 +304,224 @@ static int add_one_file(FILE *fp, char *name)
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return 1;
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}
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static void
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usage(FILE *fp)
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{
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if (fp != NULL) fclose(fp);
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fprintf(stderr,
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"Usage:\n"
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" timepng --assemble <assembly> {files}\n"
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" Read the files into <assembly>, output the count. Options are ignored.\n"
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" timepng --dissemble <assembly> <count> [options]\n"
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" Time <count> files from <assembly>, additional files may not be given.\n"
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" Otherwise:\n"
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" Read the files into a temporary file and time the decode\n"
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"Transforms:\n"
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" --by-image: read by image with png_read_png\n"
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" --<transform>: implies by-image, use PNG_TRANSFORM_<transform>\n"
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" Otherwise: read by row using png_read_row (to a single row buffer)\n"
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"{files}:\n"
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" PNG files to copy into the assembly and time. Invalid files are skipped\n"
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" with appropriate error messages. If no files are given the list of files\n"
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" is read from stdin with each file name terminated by a newline\n"
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"Output:\n"
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" For --assemble the output is the name of the assembly file followed by the\n"
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" count of the files it contains; the arguments for --dissemble. Otherwise\n"
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" the output is the total decode time in seconds.\n");
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exit(99);
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}
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int main(int argc, char **argv)
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{
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int ok = 0;
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int err = 0;
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int nfiles = 0;
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int transforms = -1; /* by row */
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FILE *fp = tmpfile();
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const char *assembly = NULL;
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FILE *fp;
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if (fp != NULL)
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if (argc > 2 && strcmp(argv[1], "--assemble") == 0)
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{
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int err = 0;
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int nfiles = 0;
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/* Remove and handle options first: */
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while (argc > 1 && argv[1][0] == '-' && argv[1][1] == '-')
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/* Just build the test file, argv[2] is the file name. */
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assembly = argv[2];
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fp = fopen(assembly, "wb");
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if (fp == NULL)
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{
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const char *opt = *++argv + 2;
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perror(assembly);
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fprintf(stderr, "timepng --assemble %s: could not open for write\n",
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assembly);
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usage(NULL);
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}
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--argc;
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argv += 2;
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argc -= 2;
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}
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/* Options turn on the by-image processing and maybe set some
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* transforms:
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*/
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if (transforms == -1)
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transforms = PNG_TRANSFORM_IDENTITY;
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else if (argc > 3 && strcmp(argv[1], "--dissemble") == 0)
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{
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fp = fopen(argv[2], "rb");
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if (strcmp(opt, "by-image") == 0)
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{
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/* handled above */
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}
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if (fp == NULL)
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{
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perror(argv[2]);
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fprintf(stderr, "timepng --dissemble %s: could not open for read\n",
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argv[2]);
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usage(NULL);
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}
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nfiles = atoi(argv[3]);
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if (nfiles <= 0)
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{
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fprintf(stderr,
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"timepng --dissemble <file> <count>: %s is not a count\n",
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argv[3]);
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exit(99);
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}
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argv += 3;
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argc -= 3;
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}
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else /* Else use a temporary file */
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{
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fp = tmpfile();
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if (fp == NULL)
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{
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perror("tmpfile");
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fprintf(stderr, "timepng: could not open the temporary file\n");
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exit(1); /* not a user error */
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}
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}
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/* Handle the transforms: */
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while (argc > 1 && argv[1][0] == '-' && argv[1][1] == '-')
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{
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const char *opt = *++argv + 2;
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--argc;
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/* Transforms turn on the by-image processing and maybe set some
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* transforms:
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*/
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if (transforms == -1)
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transforms = PNG_TRANSFORM_IDENTITY;
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if (strcmp(opt, "by-image") == 0)
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{
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/* handled above */
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}
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# define OPT(name) else if (strcmp(opt, #name) == 0)\
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transforms |= PNG_TRANSFORM_ ## name
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transforms |= PNG_TRANSFORM_ ## name
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OPT(STRIP_16);
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OPT(STRIP_ALPHA);
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OPT(PACKING);
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OPT(PACKSWAP);
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OPT(EXPAND);
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OPT(INVERT_MONO);
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OPT(SHIFT);
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OPT(BGR);
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OPT(SWAP_ALPHA);
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OPT(SWAP_ENDIAN);
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OPT(INVERT_ALPHA);
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OPT(STRIP_FILLER);
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OPT(STRIP_FILLER_BEFORE);
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OPT(STRIP_FILLER_AFTER);
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OPT(GRAY_TO_RGB);
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OPT(EXPAND_16);
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OPT(SCALE_16);
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}
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if (argc > 1)
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{
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int i;
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for (i=1; i<argc; ++i)
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{
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if (add_one_file(fp, argv[i]))
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++nfiles;
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}
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}
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OPT(STRIP_16);
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OPT(STRIP_ALPHA);
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OPT(PACKING);
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OPT(PACKSWAP);
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OPT(EXPAND);
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OPT(INVERT_MONO);
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OPT(SHIFT);
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OPT(BGR);
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OPT(SWAP_ALPHA);
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OPT(SWAP_ENDIAN);
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OPT(INVERT_ALPHA);
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OPT(STRIP_FILLER);
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OPT(STRIP_FILLER_BEFORE);
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OPT(STRIP_FILLER_AFTER);
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OPT(GRAY_TO_RGB);
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OPT(EXPAND_16);
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OPT(SCALE_16);
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else
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{
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char filename[FILENAME_MAX+1];
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fprintf(stderr, "timepng %s: unrecognized transform\n", opt);
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usage(fp);
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}
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}
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while (fgets(filename, FILENAME_MAX+1, stdin))
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/* Handle the files: */
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if (argc > 1 && nfiles > 0)
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usage(fp); /* Additional files not valid with --dissemble */
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else if (argc > 1)
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{
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int i;
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for (i=1; i<argc; ++i)
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{
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if (add_one_file(fp, argv[i]))
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++nfiles;
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}
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}
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else if (nfiles == 0) /* Read from stdin withoout --dissemble */
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{
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char filename[FILENAME_MAX+1];
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while (fgets(filename, FILENAME_MAX+1, stdin))
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{
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size_t len = strlen(filename);
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if (filename[len-1] == '\n')
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{
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size_t len = strlen(filename);
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filename[len-1] = 0;
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if (add_one_file(fp, filename))
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++nfiles;
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}
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if (filename[len-1] == '\n')
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else
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{
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fprintf(stderr, "timepng: file name too long: ...%s\n",
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filename+len-32);
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err = 1;
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break;
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}
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}
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if (ferror(stdin))
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{
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fprintf(stderr, "timepng: stdin: read error\n");
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err = 1;
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}
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}
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/* Perform the test, or produce the --assemble output: */
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if (!err)
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{
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if (nfiles > 0)
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{
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if (assembly != NULL)
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{
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if (fflush(fp) && !ferror(fp) && fclose(fp))
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{
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filename[len-1] = 0;
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if (add_one_file(fp, filename))
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++nfiles;
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perror(assembly);
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fprintf(stderr, "%s: close failed\n", assembly);
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}
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else
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{
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fprintf(stderr, "timepng: file name too long: ...%s\n",
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filename+len-32);
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err = 1;
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break;
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printf("%s %d\n", assembly, nfiles);
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fflush(stdout);
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ok = !ferror(stdout);
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}
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}
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if (ferror(stdin))
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else
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{
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fprintf(stderr, "timepng: stdin: read error\n");
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err = 1;
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ok = perform_one_test(fp, nfiles, transforms);
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(void)fclose(fp);
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}
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}
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if (!err)
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{
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if (nfiles > 0)
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ok = perform_one_test(fp, nfiles, transforms);
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else
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fprintf(stderr, "usage: timepng [options] {files}\n"
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" or: ls files | timepng [options]\n");
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}
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(void)fclose(fp);
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else
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usage(fp);
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}
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else
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fprintf(stderr, "timepng: could not open temporary file\n");
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(void)fclose(fp);
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/* Exit code 0 on success. */
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return ok == 0;
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