test/large-source.c

   1 /*
   2  * Copyright © Chris Wilson, 2008
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software
   5  * and its documentation for any purpose is hereby granted without
   6  * fee, provided that the above copyright notice appear in all copies
   7  * and that both that copyright notice and this permission notice
   8  * appear in supporting documentation, and that the name of
   9  * Chris Wilson not be used in advertising or publicity pertaining to
  10  * distribution of the software without specific, written prior
  11  * permission. Chris Wilson makes no representations about the
  12  * suitability of this software for any purpose.  It is provided "as
  13  * is" without express or implied warranty.
  14  *
  15  * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
  16  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
  17  * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,
  18  * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
  19  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  20  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
  21  * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  22  *
  23  * Authors: Chris Wilson <chris@chris-wilson.co.uk>
  24  */
  25
  26 #include "cairo-test.h"
  27
  28 /* This is a test case for the following bug:
  29  *
  30  *      crafted gif file will crash firefox
  31  *      [XError: 'BadAlloc (insufficient resources for operation)']
  32  *      https://bugzilla.mozilla.org/show_bug.cgi?id=424333
  33  *
  34  * The output is currently marked as XFAIL as pixman is still limited
  35  * to 16.16.
  36  */
  37
  38 static cairo_test_draw_function_t draw;
  39
  40 cairo_test_t test = {
  41     "large-source",
  42     "Exercises mozilla bug 424333 - handling of massive images",
  43     20, 20,
  44     draw
  45 };
  46
  47 #ifdef WORDS_BIGENDIAN
  48 #define RED_MASK 0xA0
  49 #define GREEN_MASK 0xA
  50 #else
  51 #define RED_MASK 0x5
  52 #define GREEN_MASK 0x50
  53 #endif
  54
  55 static cairo_test_status_t
  56 draw (cairo_t *cr, int width, int height)
  57 {
  58     cairo_surface_t *surface;
  59     unsigned char *data;
  60
  61     cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
  62     cairo_paint (cr);
  63
  64     surface = cairo_image_surface_create (CAIRO_FORMAT_A1, 64000, 20);
  65     data = cairo_image_surface_get_data (surface);
  66     if (data != NULL) {
  67         int stride = cairo_image_surface_get_stride (surface);
  68         int width  = cairo_image_surface_get_width  (surface);
  69         int height = cairo_image_surface_get_height (surface);
  70         int x, y;
  71
  72         for (y = 0; y < height; y++) {
  73             for (x = 0; x < (width + 7) / 8; x++)
  74                 data[x] = RED_MASK;
  75             data += stride;
  76         }
  77     }
  78
  79     cairo_set_source_rgb (cr, 1, 0, 0); /* red */
  80     cairo_mask_surface (cr, surface, 0, 0);
  81     cairo_surface_destroy (surface);
  82
  83     surface = cairo_image_surface_create (CAIRO_FORMAT_A1, 20, 64000);
  84     data = cairo_image_surface_get_data (surface);
  85     if (data != NULL) {
  86         int stride = cairo_image_surface_get_stride (surface);
  87         int width  = cairo_image_surface_get_width  (surface);
  88         int height = cairo_image_surface_get_height (surface);
  89         int x, y;
  90
  91         for (y = 0; y < height; y++) {
  92             for (x = 0; x < (width + 7) / 8; x++)
  93                 data[x] = GREEN_MASK;
  94             data += stride;
  95         }
  96     }
  97
  98     cairo_set_source_rgb (cr, 0, 1, 0); /* green */
  99     cairo_mask_surface (cr, surface, 0, 0);
 100     cairo_surface_destroy (surface);
 101
 102     return CAIRO_TEST_SUCCESS;
 103 }
 104
 105 int
 106 main (void)
 107 {
 108     return cairo_test (&test);
 109 }