}
static void
-show_window (uint32_t *bits, int w, int h, int stride)
+show_window (pixman_image_t *img, int w, int h, int stride)
{
GdkPixbuf *pixbuf;
GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
- pixbuf = pixbuf_from_argb32 (bits, w, h, stride);
+ pixbuf = pixbuf_from_argb32 (pixman_image_get_data (img), w, h, stride);
g_signal_connect (window, "expose_event", G_CALLBACK (on_expose), pixbuf);
g_signal_connect (window, "delete_event", G_CALLBACK (gtk_main_quit), NULL);
gtk_main ();
}
-int
-main (int argc, char **argv)
-{
#define WIDTH 200
#define HEIGHT 200
- uint32_t *src = malloc (WIDTH * HEIGHT * 4);
- pixman_image_t *gradient_img;
- pixman_image_t *src_img;
+static pixman_image_t *
+create_solid_bits (uint32_t pixel)
+{
+ uint32_t *pixels = malloc (WIDTH * HEIGHT * 4);
int i;
+
+ for (i = 0; i < WIDTH * HEIGHT; ++i)
+ pixels[i] = pixel;
+
+ return pixman_image_create_bits (PIXMAN_a8r8g8b8,
+ WIDTH, HEIGHT,
+ pixels,
+ WIDTH * 4);
+}
+
+int
+main (int argc, char **argv)
+{
+ pixman_image_t *gradient_img;
+ pixman_image_t *src_img, *dst_img;
pixman_gradient_stop_t stops[2] =
{
{ pixman_int_to_fixed (0), { 0xffff, 0x0000, 0x0000, 0xffff } },
pixman_point_fixed_t c_outer;
pixman_fixed_t r_inner;
pixman_fixed_t r_outer;
+ pixman_region32_t clip_region;
+ pixman_transform_t trans = {
+ { { pixman_double_to_fixed (1.3), pixman_double_to_fixed (0), pixman_double_to_fixed (-0.5), },
+ { pixman_double_to_fixed (0), pixman_double_to_fixed (1), pixman_double_to_fixed (-0.5), },
+ { pixman_double_to_fixed (0), pixman_double_to_fixed (0), pixman_double_to_fixed (1.0) }
+ }
+ };
gtk_init (&argc, &argv);
- for (i = 0; i < WIDTH * HEIGHT; ++i)
- src[i] = 0xFF0000ff; /* pale blue */
-
- src_img = pixman_image_create_bits (PIXMAN_a8r8g8b8,
- WIDTH, HEIGHT,
- src,
- WIDTH * 4);
+ src_img = create_solid_bits (0xff0000ff);
c_inner.x = pixman_double_to_fixed (100.0);
c_inner.y = pixman_double_to_fixed (100.0);
gradient_img = pixman_image_create_radial_gradient (&c_inner, &c_outer,
r_inner, r_outer,
stops, 2);
-
+
#if 0
gradient_img = pixman_image_create_linear_gradient (&p1, &p2,
stops, 2);
#endif
-
+
pixman_image_composite (PIXMAN_OP_OVER, gradient_img, NULL, src_img,
0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
+ pixman_region32_init_rect (&clip_region, 50, 0, 100, 200);
+ pixman_image_set_clip_region32 (src_img, &clip_region);
+ pixman_image_set_source_clipping (src_img, TRUE);
+ pixman_image_set_transform (src_img, &trans);
+ pixman_image_set_repeat (src_img, PIXMAN_REPEAT_NORMAL);
+
+ dst_img = create_solid_bits (0xffff0000);
+ pixman_image_composite (PIXMAN_OP_OVER, src_img, NULL, dst_img,
+ 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
+
+
+#if 0
printf ("0, 0: %x\n", src[0]);
printf ("10, 10: %x\n", src[10 * 10 + 10]);
printf ("w, h: %x\n", src[(HEIGHT - 1) * 100 + (WIDTH - 1)]);
+#endif
- show_window (src, WIDTH, HEIGHT, WIDTH);
+ show_window (dst_img, WIDTH, HEIGHT, WIDTH);
pixman_image_unref (gradient_img);
pixman_image_unref (src_img);
- free (src);
return 0;
}