test: Improve horizontal-clip

The bug pointed out by this test now causes failures in xcb and xlib.
This commit is contained in:
Andrea Canciani 2011-07-27 21:50:45 +02:00
parent 80b7a1aa9b
commit de25fec06b
2 changed files with 20 additions and 19 deletions

View file

@ -29,10 +29,11 @@
#include "cairo-test.h"
#define WIDTH 20
#define HEIGHT 20
#define WIDTH 16
#define HEIGHT 26
#define BUG 1
#define BUGY 1
#define BUGX (4 * BUGY * WIDTH * 256)
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
@ -41,28 +42,28 @@ draw (cairo_t *cr, int width, int height)
cairo_paint (cr);
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_move_to (cr, 0-256, 4 - BUG);
cairo_line_to (cr, WIDTH + 256, 4 + BUG);
cairo_line_to (cr, WIDTH + 256, 2 - BUG);
cairo_line_to (cr, 0-256, 2 + BUG);
cairo_move_to (cr, - BUGX, 6 - BUGY);
cairo_line_to (cr, + BUGX, 6 + BUGY);
cairo_line_to (cr, WIDTH + BUGX, 2 - BUGY);
cairo_line_to (cr, WIDTH - BUGX, 2 + BUGY);
cairo_fill (cr);
cairo_move_to (cr, 0-256, 6 - BUG);
cairo_line_to (cr, WIDTH + 256, 6 + BUG);
cairo_line_to (cr, WIDTH + 256, 8 - BUG);
cairo_line_to (cr, 0-256, 8 + BUG);
cairo_move_to (cr, WIDTH + BUGX, 8 - BUGY);
cairo_line_to (cr, WIDTH - BUGX, 8 + BUGY);
cairo_line_to (cr, - BUGX, 12 - BUGY);
cairo_line_to (cr, + BUGX, 12 + BUGY);
cairo_fill (cr);
cairo_move_to (cr, WIDTH+256, 12 - BUG);
cairo_line_to (cr, 0-256, 12 + BUG);
cairo_line_to (cr, 0-256, 14 - BUG);
cairo_line_to (cr, WIDTH+256, 14 + BUG);
cairo_move_to (cr, - BUGX, 14 - BUGY);
cairo_line_to (cr, + BUGX, 14 + BUGY);
cairo_line_to (cr, WIDTH + BUGX, 18 - BUGY);
cairo_line_to (cr, WIDTH - BUGX, 18 + BUGY);
cairo_fill (cr);
cairo_move_to (cr, WIDTH+256, 18 - BUG);
cairo_line_to (cr, 0-256, 18 + BUG);
cairo_line_to (cr, 0-256, 16 - BUG);
cairo_line_to (cr, WIDTH+256, 16 + BUG);
cairo_move_to (cr, WIDTH + BUGX, 24 - BUGY);
cairo_line_to (cr, WIDTH - BUGX, 24 + BUGY);
cairo_line_to (cr, - BUGX, 20 - BUGY);
cairo_line_to (cr, + BUGX, 20 + BUGY);
cairo_fill (cr);
return CAIRO_TEST_SUCCESS;

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