tests/gfx/PutPixelAA.c

   1 /*****************************************************************************
   2  * This file is part of gfxprim library.                                     *
   3  *                                                                           *
   4  * Gfxprim is free software; you can redistribute it and/or                  *
   5  * modify it under the terms of the GNU Lesser General Public                *
   6  * License as published by the Free Software Foundation; either              *
   7  * version 2.1 of the License, or (at your option) any later version.        *
   8  *                                                                           *
   9  * Gfxprim is distributed in the hope that it will be useful,                *
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
  12  * Lesser General Public License for more details.                           *
  13  *                                                                           *
  14  * You should have received a copy of the GNU Lesser General Public          *
  15  * License along with gfxprim; if not, write to the Free Software            *
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,                        *
  17  * Boston, MA  02110-1301  USA                                               *
  18  *                                                                           *
  19  * Copyright (C) 2009-2013 Cyril Hrubis <metan@ucw.cz>                       *
  20  *                                                                           *
  21  *****************************************************************************/
  22
  23 #include <string.h>
  24 #include <errno.h>
  25 #include <sys/stat.h>
  26
  27 #include <core/GP_Context.h>
  28 #include <gfx/GP_PutPixelAA.h>
  29
  30 #include "tst_test.h"
  31
  32 #include "common.h"
  33
  34 struct testcase {
  35         /* pixel description */
  36         GP_Coord x;
  37         GP_Coord y;
  38
  39         /* expected result */
  40         GP_Size w, h;
  41         const char pixmap[];
  42 };
  43
  44 static int test_pixel(const struct testcase *t)
  45 {
  46         GP_Context *c;
  47         int err;
  48
  49         c = GP_ContextAlloc(t->w, t->h, GP_PIXEL_G8);
  50
  51         if (c == NULL) {
  52                 tst_err("Failed to allocate context");
  53                 return TST_UNTESTED;
  54         }
  55
  56         /* zero the pixels buffer */
  57         memset(c->pixels, 0, c->w * c->h);
  58
  59         GP_PutPixelAA(c, t->x, t->y, 0xff);
  60
  61         err = compare_buffers(t->pixmap, c);
  62
  63         if (err)
  64                 return TST_FAILED;
  65
  66         return TST_SUCCESS;
  67 }
  68
  69 static struct testcase testcase_pixel_center = {
  70         .x = (1<<8),
  71         .y = (1<<8),
  72
  73         .w = 3,
  74         .h = 3,
  75
  76         .pixmap = {
  77                 0x00, 0x00, 0x00,
  78                 0x00, 0xff, 0x00,
  79                 0x00, 0x00, 0x00,
  80         }
  81 };
  82
  83 static struct testcase testcase_pixel_hcenter = {
  84         .x = (1<<8),
  85         .y = (1<<8) + (1<<7),
  86
  87         .w = 3,
  88         .h = 4,
  89
  90         .pixmap = {
  91                 0x00, 0x00, 0x00,
  92                 0x00, 0x80, 0x00,
  93                 0x00, 0x80, 0x00,
  94                 0x00, 0x00, 0x00,
  95         }
  96 };
  97
  98 static struct testcase testcase_pixel_vcenter = {
  99         .x = (1<<8) + (1<<7),
 100         .y = (1<<8),
 101
 102         .w = 4,
 103         .h = 3,
 104
 105         .pixmap = {
 106                 0x00, 0x00, 0x00, 0x00,
 107                 0x00, 0x80, 0x80, 0x00,
 108                 0x00, 0x00, 0x00, 0x00,
 109         }
 110 };
 111
 112 static struct testcase testcase_pixel = {
 113         .x = (1<<8) + (1<<7),
 114         .y = (1<<8) + (1<<7),
 115
 116         .w = 4,
 117         .h = 4,
 118
 119         .pixmap = {
 120                 0x00, 0x00, 0x00, 0x00,
 121                 0x00, 0x40, 0x40, 0x00,
 122                 0x00, 0x40, 0x40, 0x00,
 123                 0x00, 0x00, 0x00, 0x00,
 124         }
 125 };
 126
 127 const struct tst_suite tst_suite = {
 128         .suite_name = "PutPixelAA Testsuite",
 129         .tests = {
 130                 {.name = "PutPixelAA center",
 131                  .tst_fn = test_pixel,
 132                  .data = &testcase_pixel_center},
 133
 134                 {.name = "PutPixelAA hcenter",
 135                  .tst_fn = test_pixel,
 136                  .data = &testcase_pixel_hcenter},
 137
 138                 {.name = "PutPixelAA vcenter",
 139                  .tst_fn = test_pixel,
 140                  .data = &testcase_pixel_vcenter},
 141
 142                 {.name = "PutPixelAA",
 143                  .tst_fn = test_pixel,
 144                  .data = &testcase_pixel},
 145
 146                 {.name = NULL}
 147         }
 148 };