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author | Søren Sandmann Pedersen <ssp@redhat.com> | 2010-02-24 20:51:25 -0500 |
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committer | Søren Sandmann Pedersen <ssp@redhat.com> | 2010-02-24 21:01:24 -0500 |
commit | 16ef3ab230047221f813905d390bf762a3d8508a (patch) | |
tree | bfa0b2b2ec1318d4006c7b7148efb041edebed5e | |
parent | ad5cbba4c05f8521004c6aa1afd5aa74040afad0 (diff) |
Add a1-trap-test
When a trapezoid sample point is exactly on a polygon edge, the rule
is that it is considered inside the trapezoid if the edge is a top or
left edge, but outside for bottom and right edges.
This program tests that for a1 trapezoids.
-rw-r--r-- | test/Makefile.am | 2 | ||||
-rw-r--r-- | test/a1-trap-test.c | 50 |
2 files changed, 52 insertions, 0 deletions
diff --git a/test/Makefile.am b/test/Makefile.am index 3229f967..841ff8d7 100644 --- a/test/Makefile.am +++ b/test/Makefile.am @@ -2,6 +2,7 @@ TEST_LDADD = $(top_builddir)/pixman/libpixman-1.la INCLUDES = -I$(top_srcdir)/pixman -I$(top_builddir)/pixman TESTPROGRAMS = \ + a1-trap-test \ region-test \ fetch-test \ oob-test \ @@ -12,6 +13,7 @@ TESTPROGRAMS = \ scaling-test \ composite +a1_trap_test_LDADD = $(TEST_LDADD) fetch_test_LDADD = $(TEST_LDADD) composite_LDADD = $(TEST_LDADD) trap_crasher_LDADD = $(TEST_LDADD) diff --git a/test/a1-trap-test.c b/test/a1-trap-test.c new file mode 100644 index 00000000..6163e7c6 --- /dev/null +++ b/test/a1-trap-test.c @@ -0,0 +1,50 @@ +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "pixman.h" + +int +main (int argc, char **argv) +{ +#define WIDTH 20 +#define HEIGHT 20 + + pixman_image_t *src_img; + pixman_image_t *mask_img; + pixman_image_t *dest_img; + pixman_trap_t trap; + pixman_color_t red = { 0xffff, 0x0000, 0x0000, 0xffff }; + uint32_t *bits = malloc (WIDTH * HEIGHT * 4); + uint32_t *mbits = malloc (WIDTH * HEIGHT); + + memset (mbits, 0, WIDTH * HEIGHT); + memset (bits, 0xff, WIDTH * HEIGHT * 4); + + trap.top.l = pixman_double_to_fixed (0.5); + trap.top.r = pixman_double_to_fixed (1.5); + trap.top.y = pixman_double_to_fixed (0.5); + + trap.bot.l = pixman_double_to_fixed (0.5); + trap.bot.r = pixman_double_to_fixed (1.5); + trap.bot.y = pixman_double_to_fixed (1.5); + + mask_img = pixman_image_create_bits ( + PIXMAN_a1, WIDTH, HEIGHT, mbits, WIDTH); + src_img = pixman_image_create_solid_fill (&red); + dest_img = pixman_image_create_bits ( + PIXMAN_a8r8g8b8, WIDTH, HEIGHT, bits, WIDTH * 4); + + pixman_add_traps (mask_img, 0, 0, 1, &trap); + + pixman_image_composite (PIXMAN_OP_OVER, + src_img, mask_img, dest_img, + 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT); + + assert (bits[0] == 0xffff0000); + assert (bits[1] == 0xffffffff); + assert (bits[1 * WIDTH + 0] == 0xffffffff); + assert (bits[1 * WIDTH + 1] == 0xffffffff); + + return 0; +} |