diff options
author | Søren Sandmann <sandmann@redhat.com> | 2007-05-09 18:10:30 -0400 |
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committer | Søren Sandmann <sandmann@redhat.com> | 2007-05-09 18:10:30 -0400 |
commit | 0ebb7e31db85a179afdcd731fcc6b0e311084cb1 (patch) | |
tree | d11ea3f898b7cd76fc761acd80ea81042076a7f3 /test/gradient-test.c | |
parent | dd670c29bf1de3e951f936dba834e4bfe07a9bd4 (diff) |
Remove AM_MAINTAINER_MODE ; add new gradient-test
Diffstat (limited to 'test/gradient-test.c')
-rw-r--r-- | test/gradient-test.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/test/gradient-test.c b/test/gradient-test.c new file mode 100644 index 00000000..4501ea7d --- /dev/null +++ b/test/gradient-test.c @@ -0,0 +1,114 @@ +#include <stdio.h> +#include <stdlib.h> +#include <pixman/pixman.h> +#include <gtk/gtk.h> + +GdkPixbuf * +pixbuf_from_argb32 (uint32_t *bits, + int width, + int height, + int stride) +{ + GdkPixbuf *pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, + 8, width, height); + int p_stride = gdk_pixbuf_get_rowstride (pixbuf); + guint32 *p_bits = (guint32 *)gdk_pixbuf_get_pixels (pixbuf); + int w, h; + + for (h = 0; h < height; ++h) + { + for (w = 0; w < width; ++w) + { + uint32_t argb = bits[h * stride + w]; + guint32 abgr; + + abgr = (argb & 0xff000000) | + (argb & 0xff) << 16 | + (argb & 0x00ff00) | + (argb & 0xff0000) >> 16; + + p_bits[h * (p_stride / 4) + w] = abgr; + } + } + + return pixbuf; +} + +static gboolean +on_expose (GtkWidget *widget, GdkEventExpose *expose, gpointer data) +{ + GdkPixbuf *pixbuf = data; + + gdk_draw_pixbuf (widget->window, NULL, + pixbuf, 0, 0, 0, 0, + gdk_pixbuf_get_width (pixbuf), + gdk_pixbuf_get_height (pixbuf), + GDK_RGB_DITHER_NONE, + 0, 0); + + return TRUE; +} + +static void +show_window (uint32_t *bits, int w, int h, int stride) +{ + GdkPixbuf *pixbuf; + + GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL); + + pixbuf = pixbuf_from_argb32 (bits, w, h, stride); + + g_signal_connect (window, "expose_event", G_CALLBACK (on_expose), pixbuf); + + gtk_widget_show (window); + + gtk_main (); +} + +int +main (int argc, char **argv) +{ +#define WIDTH 100 +#define HEIGHT 100 + + uint32_t *dest = malloc (WIDTH * HEIGHT * 4); + pixman_image_t *src_img; + pixman_image_t *dest_img; + int i; + pixman_gradient_stop_t stops[2] = + { + { 0.0, { 0xffff, 0x0000, 0x0000, 0xffff } }, + { 1.0, { 0xffff, 0xffff, 0x0000, 0xffff } } + }; + pixman_point_fixed_t p1 = { 0, 0 }; + pixman_point_fixed_t p2 = { pixman_int_to_fixed (WIDTH), + pixman_int_to_fixed (HEIGHT) }; + + gtk_init (&argc, &argv); + + for (i = 0; i < WIDTH * HEIGHT; ++i) + dest[i] = 0x3f0000ff; /* pale blue */ + + dest_img = pixman_image_create_bits (PIXMAN_a8r8g8b8, + WIDTH, HEIGHT, + dest, + WIDTH * 4); + + src_img = pixman_image_create_linear_gradient (&p1, &p2, + stops, 2); + + pixman_image_composite (PIXMAN_OP_OVER, src_img, NULL, dest_img, + 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT); + + printf ("0, 0: %x\n", dest[0]); + printf ("10, 10: %x\n", dest[10 * 10 + 10]); + printf ("w, h: %x\n", dest[(HEIGHT - 1) * 100 + (WIDTH - 1)]); + + show_window (dest, WIDTH, HEIGHT, WIDTH); + + pixman_image_unref (src_img); + pixman_image_unref (dest_img); + free (dest); + + return 0; +} |