[cairo] Problem with linear gradients and reflect mode post-rewrite
T Rowley
tor at cs.brown.edu
Tue Jan 2 15:39:29 PST 2007
The following testcase works before the
e9bef30d2bcdf41c7b7f20b3517839c37e752f75 landing, and has visual
artifacts afterwards.
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#include "cairo-test.h"
#include "stdio.h"
#define WIDTH 50
#define HEIGHT 50
static cairo_test_draw_function_t draw;
cairo_test_t test = {
"linear-gradient-reflect",
"Tests the drawing of linear gradient with reflect",
WIDTH, HEIGHT,
draw
};
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_pattern_t *pattern;
cairo_set_source_rgb (cr, 0.5, 0.5, 0.5);
cairo_paint (cr);
cairo_save (cr);
pattern = cairo_pattern_create_linear (0, 0, 10.0, 0);
cairo_pattern_add_color_stop_rgb (pattern, 0.0,
0.0, 0.0, 1.0);
cairo_pattern_add_color_stop_rgb (pattern, 1.0,
1.0, 0.0, 0.0);
cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REFLECT);
cairo_set_source (cr, pattern);
cairo_pattern_destroy (pattern);
cairo_rectangle (cr, 0.0, 0.0, WIDTH, HEIGHT);
cairo_fill (cr);
cairo_restore (cr);
return CAIRO_TEST_SUCCESS;
}
int
main (void)
{
return cairo_test (&test);
}
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