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[test] fill-alpha

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Update alpha value to non-divisable-by-256 number to expose a bug in
pixman where it appears to be mixing in empty registers.
This commit is contained in:
Chris Wilson 2008-09-09 09:06:10 +01:00
parent c20179b65f
commit 378b11aaf3
5 changed files with 10 additions and 8 deletions
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test/fill-alpha-pattern-ps-ref.png
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9
test/fill-alpha-pattern.c
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@ -40,6 +40,7 @@ static const cairo_test_t test = {
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
const double alpha = 1./3;
cairo_pattern_t *pattern;
int n;
@ -53,13 +54,13 @@ draw (cairo_t *cr, int width, int height)
/* square */
cairo_rectangle (cr, PAD, PAD, SIZE, SIZE);
cairo_set_source_rgba (cr, 1, 0, 0, .5);
cairo_set_source_rgba (cr, 1, 0, 0, alpha);
cairo_fill (cr);
/* circle */
cairo_translate (cr, SIZE + 2 * PAD, 0);
cairo_arc (cr, PAD + SIZE / 2., PAD + SIZE / 2., SIZE / 2., 0, 2 * M_PI);
cairo_set_source_rgba (cr, 0, 1, 0, .5);
cairo_set_source_rgba (cr, 0, 1, 0, alpha);
cairo_fill (cr);
/* triangle */
@ -67,7 +68,7 @@ draw (cairo_t *cr, int width, int height)
cairo_move_to (cr, PAD + SIZE / 2, PAD);
cairo_line_to (cr, PAD + SIZE, PAD + SIZE);
cairo_line_to (cr, PAD, PAD + SIZE);
cairo_set_source_rgba (cr, 0, 0, 1, .5);
cairo_set_source_rgba (cr, 0, 0, 1, alpha);
cairo_fill (cr);
/* star */
@ -81,7 +82,7 @@ draw (cairo_t *cr, int width, int height)
SIZE/4 * cos ((2*n+1)*2*M_PI / 10),
SIZE/4 * sin ((2*n+1)*2*M_PI / 10));
}
cairo_set_source_rgba (cr, 0, 0, 0, .5);
cairo_set_source_rgba (cr, 0, 0, 0, alpha);
cairo_fill (cr);
return CAIRO_TEST_SUCCESS;

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9
test/fill-alpha.c
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@ -40,6 +40,7 @@ static const cairo_test_t test = {
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
const double alpha = 1./3;
int n;
/* flatten to white */
@ -48,13 +49,13 @@ draw (cairo_t *cr, int width, int height)
/* square */
cairo_rectangle (cr, PAD, PAD, SIZE, SIZE);
cairo_set_source_rgba (cr, 1, 0, 0, .5);
cairo_set_source_rgba (cr, 1, 0, 0, alpha);
cairo_fill (cr);
/* circle */
cairo_translate (cr, SIZE + 2 * PAD, 0);
cairo_arc (cr, PAD + SIZE / 2., PAD + SIZE / 2., SIZE / 2., 0, 2 * M_PI);
cairo_set_source_rgba (cr, 0, 1, 0, .5);
cairo_set_source_rgba (cr, 0, 1, 0, alpha);
cairo_fill (cr);
/* triangle */
@ -62,7 +63,7 @@ draw (cairo_t *cr, int width, int height)
cairo_move_to (cr, PAD + SIZE / 2, PAD);
cairo_line_to (cr, PAD + SIZE, PAD + SIZE);
cairo_line_to (cr, PAD, PAD + SIZE);
cairo_set_source_rgba (cr, 0, 0, 1, .5);
cairo_set_source_rgba (cr, 0, 0, 1, alpha);
cairo_fill (cr);
/* star */
@ -76,7 +77,7 @@ draw (cairo_t *cr, int width, int height)
SIZE/4 * cos ((2*n+1)*2*M_PI / 10),
SIZE/4 * sin ((2*n+1)*2*M_PI / 10));
}
cairo_set_source_rgba (cr, 0, 0, 0, .5);
cairo_set_source_rgba (cr, 0, 0, 0, alpha);
cairo_fill (cr);
return CAIRO_TEST_SUCCESS;