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[test/a1-mask] Perform the stride API checking once.

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The stride API is independent of the surface and does not need to be
repeated for every surface.
This commit is contained in:
Chris Wilson 2008-04-14 20:32:29 +01:00
parent fa5e87ad23
commit 8b36ca0858
1 changed files with 49 additions and 48 deletions
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97
test/a1-mask.c
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@ -112,20 +112,55 @@ test_surface_with_width_and_stride (int width, int stride,
static cairo_test_status_t
draw (cairo_t *cr, int dst_width, int dst_height)
{
int test_width, test_stride, stride, row;
unsigned char *src, *dst, *mask_aligned;
unsigned char *mask_aligned;
cairo_surface_t *surface;
cairo_pattern_t *pattern;
cairo_test_status_t status;
cairo_status_t expected;
surface = cairo_image_surface_create (CAIRO_FORMAT_A1,
MASK_WIDTH,
MASK_HEIGHT);
mask_aligned = cairo_image_surface_get_data (surface);
if (mask_aligned != NULL) {
int stride = cairo_image_surface_get_stride (surface), row;
const unsigned char *src = mask;
unsigned char *dst = mask_aligned;
for (row = 0; row < MASK_HEIGHT; row++) {
memcpy (dst, src, (MASK_WIDTH + 7) / 8);
src += (MASK_WIDTH + 7) / 8;
dst += stride;
}
}
/* Paint background blue */
cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
cairo_paint (cr);
/* Then paint red through our mask */
cairo_set_source_rgb (cr, 1, 0, 0); /* red */
cairo_mask_surface (cr, surface, 0, 0);
cairo_surface_destroy (surface);
return CAIRO_TEST_SUCCESS;
}
int
main (void)
{
int test_width;
cairo_test_init ("a1-mask");
/* first check the API strictness */
for (test_width = 0; test_width < 40; test_width++) {
test_stride = (test_width + 7) / 8;
stride = cairo_format_stride_for_width (CAIRO_FORMAT_A1,
test_width);
int test_stride = (test_width + 7) / 8;
int stride = cairo_format_stride_for_width (CAIRO_FORMAT_A1,
test_width);
cairo_test_status_t status;
cairo_status_t expected;
/* First create a surface using the width as the stride, (most
* of these should fail). */
/* First create a surface using the width as the stride,
* (most of these should fail).
*/
expected = (stride == test_stride) ?
CAIRO_STATUS_SUCCESS : CAIRO_STATUS_INVALID_STRIDE;
@ -142,8 +177,9 @@ draw (cairo_t *cr, int dst_width, int dst_height)
return status;
/* Then create a surface using the correct stride, (should
always succeed).*/
/* Then create a surface using the correct stride,
* (should always succeed).
*/
status = test_surface_with_width_and_stride (test_width,
stride,
CAIRO_STATUS_SUCCESS);
@ -157,42 +193,7 @@ draw (cairo_t *cr, int dst_width, int dst_height)
return status;
}
/* Now test actually drawing through our mask data, allocating and
* copying with the proper stride. */
surface = cairo_image_surface_create (CAIRO_FORMAT_A1,
MASK_WIDTH,
MASK_HEIGHT);
cairo_test_fini ();
mask_aligned = cairo_image_surface_get_data (surface);
if (mask_aligned != NULL) {
stride = cairo_image_surface_get_stride (surface);
src = mask;
dst = mask_aligned;
for (row = 0; row < MASK_HEIGHT; row++) {
memcpy (dst, src, (MASK_WIDTH + 7) / 8);
src += (MASK_WIDTH + 7) / 8;
dst += stride;
}
}
/* Paint background blue */
cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
cairo_paint (cr);
/* Then paint red through our mask */
pattern = cairo_pattern_create_for_surface (surface);
cairo_set_source_rgb (cr, 1, 0, 0); /* red */
cairo_mask (cr, pattern);
cairo_pattern_destroy (pattern);
cairo_surface_destroy (surface);
return CAIRO_TEST_SUCCESS;
}
int
main (void)
{
return cairo_test (&test);
}