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[test] Fix the image compare

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Oh, it's a bad sign when I can't even correctly compare a bunch of pixels.
This commit is contained in:
Chris Wilson 2009-06-19 21:21:02 +01:00
parent d544828934
commit b71b6ecb59
1 changed files with 86 additions and 15 deletions
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101
test/cairo-test-trace.c
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@ -570,10 +570,91 @@ matches_reference (struct slave *slave)
return TRUE;
}
} else {
return memcmp (cairo_image_surface_get_data (a),
cairo_image_surface_get_data (b),
cairo_image_surface_get_stride (a) *
cairo_image_surface_get_stride (b));
int width, height, stride;
const uint8_t *aa, *bb;
int x, y;
width = cairo_image_surface_get_width (a);
height = cairo_image_surface_get_height (a);
stride = cairo_image_surface_get_stride (a);
aa = cairo_image_surface_get_data (a);
bb = cairo_image_surface_get_data (b);
switch (cairo_image_surface_get_format (a)) {
case CAIRO_FORMAT_ARGB32:
for (y = 0; y < height; y++) {
const uint32_t *ua = (uint32_t *) aa;
const uint32_t *ub = (uint32_t *) bb;
for (x = 0; x < width; x++) {
if (ua[x] != ub[x]) {
int channel;
for (channel = 0; channel < 4; channel++) {
unsigned va, vb, diff;
va = (ua[x] >> (channel*8)) & 0xff;
vb = (ub[x] >> (channel*8)) & 0xff;
diff = abs (va - vb);
if (diff > slave->target->error_tolerance)
return FALSE;
}
}
}
aa += stride;
bb += stride;
}
break;
case CAIRO_FORMAT_RGB24:
for (y = 0; y < height; y++) {
const uint32_t *ua = (uint32_t *) aa;
const uint32_t *ub = (uint32_t *) bb;
for (x = 0; x < width; x++) {
if ((ua[x] & 0x00ffffff) != (ub[x] & 0x00ffffff)) {
int channel;
for (channel = 0; channel < 3; channel++) {
unsigned va, vb, diff;
va = (ua[x] >> (channel*8)) & 0xff;
vb = (ub[x] >> (channel*8)) & 0xff;
diff = abs (va - vb);
if (diff > slave->target->error_tolerance)
return FALSE;
}
}
}
aa += stride;
bb += stride;
}
break;
case CAIRO_FORMAT_A8:
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
if (aa[x] != bb[x]) {
unsigned diff = abs (aa[x] - bb[x]);
if (diff > slave->target->error_tolerance)
return FALSE;
}
}
aa += stride;
bb += stride;
}
break;
case CAIRO_FORMAT_A1:
width /= 8;
for (y = 0; y < height; y++) {
if (memcmp (aa, bb, width))
return FALSE;
aa += stride;
bb += stride;
}
break;
}
return TRUE;
}
}
@ -582,9 +663,7 @@ check_images (struct slave *slaves, int num_slaves)
{
int n;
for (n = 1; n < num_slaves; n++) {
assert (slaves[n].image_ready == slaves[0].image_ready);
for (n = 0; n < num_slaves; n++) {
if (slaves[n].reference == NULL)
continue;
@ -939,14 +1018,6 @@ _test_trace (test_runner_t *test,
/* spawn slave processes to run the trace */
s = slaves = xcalloc (2*test->num_targets + 1, sizeof (struct slave));
s->pid = spawn_target (socket_path, shm_path, image, trace);
if (s->pid < 0)
goto cleanup;
s->target = image;
s->reference = NULL;
s->fd = -1;
s++;
for (i = 0; i < test->num_targets; i++) {
pid_t slave;
const cairo_boilerplate_target_t *reference;