Modify gradient-test to show a bug in NONE processing

This patch modifies demos/gradient-test to display a bug in gradients
with a repeat mode of NONE. With the current gradient code, the left
side will be a solid red (actually an extremely long fade from solid
red to transparent) instead of a sharp transition from red to green.

diff --git a/demos/gradient-test.c b/demos/gradient-test.c
index 20f78a6..e68f69a 100644 (file)
--- a/demos/gradient-test.c
+++ b/demos/gradient-test.c
@@ -15,12 +15,11 @@ main (int argc, char **argv)
     int i;
     pixman_gradient_stop_t stops[2] =
        {
-           { pixman_int_to_fixed (0), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
-           { pixman_int_to_fixed (1), { 0xffff, 0x1111, 0x1111, 0x1111 } }
+           { pixman_int_to_fixed (0), { 0x0000, 0x0000, 0xffff, 0xffff } },
+           { pixman_int_to_fixed (1), { 0xffff, 0x1111, 0x1111, 0xffff } }
        };
-    pixman_point_fixed_t p1 = { pixman_double_to_fixed (0), 0 };
-    pixman_point_fixed_t p2 = { pixman_double_to_fixed (WIDTH / 8.),
-                               pixman_int_to_fixed (0) };
+    pixman_point_fixed_t p1 = { pixman_double_to_fixed (50), 0 };
+    pixman_point_fixed_t p2 = { pixman_double_to_fixed (200), 0 };
 #if 0
     pixman_transform_t trans = {
        { { pixman_double_to_fixed (2), pixman_double_to_fixed (0.5), pixman_double_to_fixed (-100), },
@@ -44,7 +43,7 @@ main (int argc, char **argv)
 #endif
     
     for (i = 0; i < WIDTH * HEIGHT; ++i)
-       dest[i] = 0x4f00004f; /* pale blue */
+       dest[i] = 0xff00ff00;
     
     dest_img = pixman_image_create_bits (PIXMAN_a8r8g8b8,
                                         WIDTH, HEIGHT, 
@@ -74,7 +73,7 @@ main (int argc, char **argv)
                                                    stops, 2);
     
     pixman_image_set_transform (src_img, &trans);
-    pixman_image_set_repeat (src_img, PIXMAN_REPEAT_PAD);
+    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);