Commit 03a820b1 authored by Heiko Lewin's avatar Heiko Lewin
Browse files

Fix mask usage in image-compositor

parent e22d7212
Pipeline #244295 canceled with stages
in 23 minutes and 31 seconds
......@@ -2610,14 +2610,14 @@ _inplace_src_spans (void *abstract_renderer, int y, int h,
unsigned num_spans)
{
cairo_image_span_renderer_t *r = abstract_renderer;
uint8_t *m;
uint8_t *m, *base = (uint8_t*)pixman_image_get_data(r->mask);
int x0;
if (num_spans == 0)
return CAIRO_STATUS_SUCCESS;
x0 = spans[0].x;
m = r->_buf;
m = base;
do {
int len = spans[1].x - spans[0].x;
if (len >= r->u.composite.run_length && spans[0].coverage == 0xff) {
......@@ -2655,7 +2655,7 @@ _inplace_src_spans (void *abstract_renderer, int y, int h,
spans[0].x, y,
spans[1].x - spans[0].x, h);
m = r->_buf;
m = base;
x0 = spans[1].x;
} else if (spans[0].coverage == 0x0) {
if (spans[0].x != x0) {
......@@ -2684,7 +2684,7 @@ _inplace_src_spans (void *abstract_renderer, int y, int h,
#endif
}
m = r->_buf;
m = base;
x0 = spans[1].x;
} else {
*m++ = spans[0].coverage;
......
......@@ -34,6 +34,7 @@ test_sources = \
bug-source-cu.c \
bug-extents.c \
bug-seams.c \
bug-image-compositor.c \
caps.c \
checkerboard.c \
caps-joins.c \
......
#include "cairo-test.h"
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_set_source_rgb (cr, 0., 0., 0.);
cairo_paint (cr);
cairo_set_source_rgb (cr, 1., 1., 1.);
cairo_set_line_width (cr, 1.);
cairo_pattern_t *p = cairo_pattern_create_linear (0, 0, width, height);
cairo_pattern_add_color_stop_rgb (p, 0, 0.99, 1, 1);
cairo_pattern_add_color_stop_rgb (p, 1, 1, 1, 1);
cairo_set_source (cr, p);
cairo_move_to (cr, 0.5, -1);
for (int i = 0; i < width; i+=3) {
cairo_rel_line_to (cr, 2, 2);
cairo_rel_line_to (cr, 1, -2);
}
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
cairo_stroke (cr);
cairo_pattern_destroy(p);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (bug_image_compositor,
"Crash in image-compositor",
"stroke, stress", /* keywords */
NULL, /* requirements */
10000, 1,
NULL, draw)
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