1 files changed, 44 insertions, 0 deletions
diff --git a/pixman/demos/screen-test.c b/pixman/demos/screen-test.c
new file mode 100644
index 000000000..e69dba3de
--- /dev/null
+++ b/pixman/demos/screen-test.c
@@ -0,0 +1,44 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "pixman.h"
+#include "gtk-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;
+}