Add screen-test.c test program

diff --git a/test/Makefile.am b/test/Makefile.am
index be76dc8..01d065b 100644 (file)
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -24,6 +24,7 @@ TESTPROGRAMS +=                       \
        composite-test          \
        gradient-test           \
        alpha-test              \
+       screen-test             \
        trap-test
 
 noinst_PROGRAMS = $(TESTPROGRAMS)
@@ -48,5 +49,8 @@ clip_in_SOURCES = clip-in.c utils.c utils.h
 trap_test_LDADD = $(GTK_LDADD)
 trap_test_SOURCES = trap-test.c utils.c utils.h
 
+screen_test_LDADD = $(GTK_LDADD)
+screen_test_SOURCES = screen-test.c utils.c utils.h
+
 endif
 

diff --git a/test/screen-test.c b/test/screen-test.c
new file mode 100644 (file)
index 0000000..5e02eee
--- /dev/null
+++ b/test/screen-test.c
@@ -0,0 +1,44 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "pixman.h"
+#include "utils.h"
+
+int
+main (int argc, char **argv)
+{
+#define WIDTH 40
+#define HEIGHT 40
+    
+    uint32_t *src1 = malloc (WIDTH * HEIGHT * 4);
+    uint32_t *src2 = malloc (WIDTH * HEIGHT * 4);
+    uint32_t *src3 = malloc (WIDTH * HEIGHT * 4);
+    uint32_t *dest = malloc (3 * WIDTH * 2 * HEIGHT * 4);
+    pixman_image_t *simg1, *simg2, *simg3, *dimg;
+
+    int i;
+
+    for (i = 0; i < WIDTH * HEIGHT; ++i)
+    {
+       src1[i] = 0x7ff00000;
+       src2[i] = 0x7f00ff00;
+       src3[i] = 0x7f0000ff;
+    }
+
+    for (i = 0; i < 3 * WIDTH * 2 * HEIGHT; ++i)
+    {
+       dest[i] = 0x0;
+    }
+
+    simg1 = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, src1, WIDTH * 4);
+    simg2 = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, src2, WIDTH * 4);
+    simg3 = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, src3, WIDTH * 4);
+    dimg  = pixman_image_create_bits (PIXMAN_a8r8g8b8, 3 * WIDTH, 2 * HEIGHT, dest, 3 * WIDTH * 4);
+
+    pixman_image_composite (PIXMAN_OP_SCREEN, simg1, NULL, dimg, 0, 0, 0, 0, WIDTH, HEIGHT / 4, WIDTH, HEIGHT);
+    pixman_image_composite (PIXMAN_OP_SCREEN, simg2, NULL, dimg, 0, 0, 0, 0, (WIDTH/2), HEIGHT / 4 + HEIGHT / 2, WIDTH, HEIGHT);
+    pixman_image_composite (PIXMAN_OP_SCREEN, simg3, NULL, dimg, 0, 0, 0, 0, (4 * WIDTH) / 3, HEIGHT, WIDTH, HEIGHT);
+
+    show_image (dimg);
+    
+    return 0;
+}