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[test/xlib-surface] Zero pixel buffers before use.

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As we only use RGB24 surface data the alpha channel is undefined, so
zero it to prevent valgrind warnings.
This commit is contained in:
Chris Wilson 2008-04-07 10:51:27 +01:00
parent d0672e85ef
commit e57ef66fab
1 changed files with 20 additions and 4 deletions
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24
test/xlib-surface.c
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@ -210,6 +210,19 @@ check_visual (Display *dpy)
return 0;
}
#undef xcalloc
static void *
xcalloc (size_t a, size_t b)
{
void *ptr = calloc (a, b);
if (ptr == NULL) {
cairo_test_log ("xlib-surface: unable to allocate memory, skipping\n");
cairo_test_fini ();
exit (0);
}
return ptr;
}
int
main (void)
{
@ -222,6 +235,7 @@ main (void)
cairo_bool_t set_size;
cairo_bool_t offscreen;
cairo_test_status_t status, result = CAIRO_TEST_SUCCESS;
int stride;
cairo_test_init ("xlib-surface");
@ -238,14 +252,16 @@ main (void)
return 0;
}
reference_data = malloc (SIZE * SIZE * 4);
test_data = malloc (SIZE * SIZE * 4);
diff_data = malloc (SIZE * SIZE * 4);
stride = cairo_format_stride_for_width (CAIRO_FORMAT_RGB24, SIZE);
reference_data = xcalloc (SIZE, stride);
test_data = xcalloc (SIZE, stride);
diff_data = xcalloc (SIZE, stride);
reference_surface = cairo_image_surface_create_for_data (reference_data,
CAIRO_FORMAT_RGB24,
SIZE, SIZE,
SIZE * 4);
stride);
draw_pattern (reference_surface);
cairo_surface_destroy (reference_surface);