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Diffstat (limited to 'libs/cairo-1.16.0/test/pdiff/args.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/pdiff/args.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/pdiff/args.c b/libs/cairo-1.16.0/test/pdiff/args.c new file mode 100644 index 0000000..ac3aa83 --- /dev/null +++ b/libs/cairo-1.16.0/test/pdiff/args.c @@ -0,0 +1,119 @@ +/* + Comapre Args + Copyright (C) 2006 Yangli Hector Yee + + This program is free software; you can redistribute it and/or modify it under the terms of the + GNU General Public License as published by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; + without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along with this program; + if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA +*/ + +#include "args.h" +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +static const char* copyright = +"PerceptualDiff version 1.0, Copyright (C) 2006 Yangli Hector Yee\n\ +PerceptualDiff comes with ABSOLUTELY NO WARRANTY;\n\ +This is free software, and you are welcome\n\ +to redistribute it under certain conditions;\n\ +See the GPL page for details: http://www.gnu.org/copyleft/gpl.html\n\n"; + +static const char *usage = +"PeceptualDiff image1.tif image2.tif\n\n\ + Compares image1.tif and image2.tif using a perceptually based image metric\n\ + Options:\n\ +\t-verbose : Turns on verbose mode\n\ +\t-fov deg : Field of view in degrees (0.1 to 89.9)\n\ +\t-threshold p : #pixels p below which differences are ignored\n\ +\t-gamma g : Value to convert rgb into linear space (default 2.2)\n\ +\t-luminance l : White luminance (default 100.0 cdm^-2)\n\ +\n\ +\n Note: Input files can also be in the PNG format\ +\n"; + +void +args_init (args_t *args) +{ + args->surface_a = NULL; + args->surface_b = NULL; + args->Verbose = false; + args->FieldOfView = 45.0f; + args->Gamma = 2.2f; + args->ThresholdPixels = 100; + args->Luminance = 100.0f; +} + +void +args_fini (args_t *args) +{ + cairo_surface_destroy (args->surface_a); + cairo_surface_destroy (args->surface_b); +} + +bool +args_parse (args_t *args, int argc, char **argv) +{ + int i; + if (argc < 3) { + fprintf (stderr, "%s", copyright); + fprintf (stderr, "%s", usage); + return false; + } + for (i = 0; i < argc; i++) { + if (i == 1) { + args->surface_a = cairo_image_surface_create_from_png (argv[1]); + if (cairo_surface_status (args->surface_a)) + { + fprintf (stderr, "FAIL: Cannot open %s: %s\n", + argv[1], cairo_status_to_string (cairo_surface_status (args->surface_a))); + return false; + } + } else if (i == 2) { + args->surface_b = cairo_image_surface_create_from_png (argv[2]); + if (cairo_surface_status (args->surface_b)) + { + fprintf (stderr, "FAIL: Cannot open %s: %s\n", + argv[2], cairo_status_to_string (cairo_surface_status (args->surface_b))); + return false; + } + } else { + if (strstr(argv[i], "-fov")) { + if (i + 1 < argc) { + args->FieldOfView = (float) atof(argv[i + 1]); + } + } else if (strstr(argv[i], "-verbose")) { + args->Verbose = true; + } else if (strstr(argv[i], "-threshold")) { + if (i + 1 < argc) { + args->ThresholdPixels = atoi(argv[i + 1]); + } + } else if (strstr(argv[i], "-gamma")) { + if (i + 1 < argc) { + args->Gamma = (float) atof(argv[i + 1]); + } + }else if (strstr(argv[i], "-luminance")) { + if (i + 1 < argc) { + args->Luminance = (float) atof(argv[i + 1]); + } + } + } + } /* i */ + return true; +} + +void +args_print (args_t *args) +{ + printf("Field of view is %f degrees\n", args->FieldOfView); + printf("Threshold pixels is %d pixels\n", args->ThresholdPixels); + printf("The Gamma is %f\n", args->Gamma); + printf("The Display's luminance is %f candela per meter squared\n", args->Luminance); +} |