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authorsanine <sanine.not@pm.me>2022-10-12 13:26:36 -0500
committersanine <sanine.not@pm.me>2022-10-12 13:26:36 -0500
commitf567ea1e2798fd3156a416e61f083ea3e6b95719 (patch)
tree53b51bda93aadf9dd13fcd77635b8c4b5c813768 /libs/pixman-0.40.0/test/gradient-crash-test.c
parent530ffd0b7d3c39757b20f00716e486b5caf89aff (diff)
add pixman and libpngraylib
Diffstat (limited to 'libs/pixman-0.40.0/test/gradient-crash-test.c')
-rw-r--r--libs/pixman-0.40.0/test/gradient-crash-test.c158
1 files changed, 158 insertions, 0 deletions
diff --git a/libs/pixman-0.40.0/test/gradient-crash-test.c b/libs/pixman-0.40.0/test/gradient-crash-test.c
new file mode 100644
index 0000000..962d1cb
--- /dev/null
+++ b/libs/pixman-0.40.0/test/gradient-crash-test.c
@@ -0,0 +1,158 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "utils.h"
+
+int
+main (int argc, char **argv)
+{
+#define WIDTH 400
+#define HEIGHT 200
+
+ uint32_t *dest = malloc (WIDTH * HEIGHT * 4);
+ pixman_image_t *src_img;
+ pixman_image_t *dest_img;
+ int i, j, k, p;
+
+ typedef struct
+ {
+ pixman_point_fixed_t p0;
+ pixman_point_fixed_t p1;
+ } point_pair_t;
+
+ pixman_gradient_stop_t onestop[1] =
+ {
+ { pixman_int_to_fixed (1), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
+ };
+
+ pixman_gradient_stop_t subsetstops[2] =
+ {
+ { pixman_int_to_fixed (1), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
+ { pixman_int_to_fixed (1), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
+ };
+
+ pixman_gradient_stop_t stops01[2] =
+ {
+ { pixman_int_to_fixed (0), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
+ { pixman_int_to_fixed (1), { 0xffff, 0x1111, 0x1111, 0x1111 } }
+ };
+
+ point_pair_t point_pairs [] =
+ { { { pixman_double_to_fixed (0), 0 },
+ { pixman_double_to_fixed (WIDTH / 8.), pixman_int_to_fixed (0) } },
+ { { pixman_double_to_fixed (WIDTH / 2.0), pixman_double_to_fixed (HEIGHT / 2.0) },
+ { pixman_double_to_fixed (WIDTH / 2.0), pixman_double_to_fixed (HEIGHT / 2.0) } }
+ };
+
+ pixman_transform_t transformations[] = {
+ {
+ { { pixman_double_to_fixed (2), pixman_double_to_fixed (0.5), pixman_double_to_fixed (-100), },
+ { pixman_double_to_fixed (0), pixman_double_to_fixed (3), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (0), pixman_double_to_fixed (0.000), pixman_double_to_fixed (1.0) }
+ }
+ },
+ {
+ { { pixman_double_to_fixed (1), pixman_double_to_fixed (0), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (0), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (0), pixman_double_to_fixed (0.000), pixman_double_to_fixed (1.0) }
+ }
+ },
+ {
+ { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (2), pixman_double_to_fixed (1.000), pixman_double_to_fixed (1.0) }
+ }
+ },
+ {
+ { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (0), pixman_double_to_fixed (0), pixman_double_to_fixed (0) }
+ }
+ },
+ {
+ { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (2), pixman_double_to_fixed (-1), pixman_double_to_fixed (0) }
+ }
+ },
+ {
+ { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (3), },
+ { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (2), pixman_double_to_fixed (-1), pixman_double_to_fixed (0) }
+ }
+ },
+ };
+
+ pixman_fixed_t r_inner;
+ pixman_fixed_t r_outer;
+
+ enable_divbyzero_exceptions();
+
+ for (i = 0; i < WIDTH * HEIGHT; ++i)
+ dest[i] = 0x4f00004f; /* pale blue */
+
+ dest_img = pixman_image_create_bits (PIXMAN_a8r8g8b8,
+ WIDTH, HEIGHT,
+ dest,
+ WIDTH * 4);
+
+ r_inner = 0;
+ r_outer = pixman_double_to_fixed (50.0);
+
+ for (i = 0; i < 3; ++i)
+ {
+ pixman_gradient_stop_t *stops;
+ int num_stops;
+
+ if (i == 0)
+ {
+ stops = onestop;
+ num_stops = ARRAY_LENGTH (onestop);
+ }
+ else if (i == 1)
+ {
+ stops = subsetstops;
+ num_stops = ARRAY_LENGTH (subsetstops);
+ }
+ else
+ {
+ stops = stops01;
+ num_stops = ARRAY_LENGTH (stops01);
+ }
+
+ for (j = 0; j < 3; ++j)
+ {
+ for (p = 0; p < ARRAY_LENGTH (point_pairs); ++p)
+ {
+ point_pair_t *pair = &(point_pairs[p]);
+
+ if (j == 0)
+ src_img = pixman_image_create_conical_gradient (&(pair->p0), r_inner,
+ stops, num_stops);
+ else if (j == 1)
+ src_img = pixman_image_create_radial_gradient (&(pair->p0), &(pair->p1),
+ r_inner, r_outer,
+ stops, num_stops);
+ else
+ src_img = pixman_image_create_linear_gradient (&(pair->p0), &(pair->p1),
+ stops, num_stops);
+
+ for (k = 0; k < ARRAY_LENGTH (transformations); ++k)
+ {
+ pixman_image_set_transform (src_img, &transformations[k]);
+
+ pixman_image_set_repeat (src_img, PIXMAN_REPEAT_NONE);
+ pixman_image_composite (PIXMAN_OP_OVER, src_img, NULL, dest_img,
+ 0, 0, 0, 0, 0, 0, 10 * WIDTH, HEIGHT);
+ }
+
+ pixman_image_unref (src_img);
+ }
+
+ }
+ }
+
+ pixman_image_unref (dest_img);
+ free (dest);
+
+ return 0;
+}