diff options
Diffstat (limited to 'pixman/demos/composite-test.c')
| -rw-r--r-- | pixman/demos/composite-test.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/pixman/demos/composite-test.c b/pixman/demos/composite-test.c new file mode 100644 index 000000000..79d5d5eac --- /dev/null +++ b/pixman/demos/composite-test.c @@ -0,0 +1,191 @@ +#include <gtk/gtk.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "pixman.h"
+#include "gtk-utils.h"
+
+#define WIDTH 60
+#define HEIGHT 60
+
+typedef struct {
+ const char *name;
+ pixman_op_t op;
+} operator_t;
+
+static const operator_t operators[] = {
+ { "CLEAR", PIXMAN_OP_CLEAR },
+ { "SRC", PIXMAN_OP_SRC },
+ { "DST", PIXMAN_OP_DST },
+ { "OVER", PIXMAN_OP_OVER },
+ { "OVER_REVERSE", PIXMAN_OP_OVER_REVERSE },
+ { "IN", PIXMAN_OP_IN },
+ { "IN_REVERSE", PIXMAN_OP_IN_REVERSE },
+ { "OUT", PIXMAN_OP_OUT },
+ { "OUT_REVERSE", PIXMAN_OP_OUT_REVERSE },
+ { "ATOP", PIXMAN_OP_ATOP },
+ { "ATOP_REVERSE", PIXMAN_OP_ATOP_REVERSE },
+ { "XOR", PIXMAN_OP_XOR },
+ { "ADD", PIXMAN_OP_ADD },
+ { "SATURATE", PIXMAN_OP_SATURATE },
+
+ { "MULTIPLY", PIXMAN_OP_MULTIPLY },
+ { "SCREEN", PIXMAN_OP_SCREEN },
+ { "OVERLAY", PIXMAN_OP_OVERLAY },
+ { "DARKEN", PIXMAN_OP_DARKEN },
+ { "LIGHTEN", PIXMAN_OP_LIGHTEN },
+ { "COLOR_DODGE", PIXMAN_OP_COLOR_DODGE },
+ { "COLOR_BURN", PIXMAN_OP_COLOR_BURN },
+ { "HARD_LIGHT", PIXMAN_OP_HARD_LIGHT },
+ { "SOFT_LIGHT", PIXMAN_OP_SOFT_LIGHT },
+ { "DIFFERENCE", PIXMAN_OP_DIFFERENCE },
+ { "EXCLUSION", PIXMAN_OP_EXCLUSION },
+ { "HSL_HUE", PIXMAN_OP_HSL_HUE },
+ { "HSL_SATURATION", PIXMAN_OP_HSL_SATURATION },
+ { "HSL_COLOR", PIXMAN_OP_HSL_COLOR },
+ { "HSL_LUMINOSITY", PIXMAN_OP_HSL_LUMINOSITY },
+};
+
+static uint32_t
+reader (const void *src, int size)
+{
+ switch (size)
+ {
+ case 1:
+ return *(uint8_t *)src;
+ case 2:
+ return *(uint16_t *)src;
+ case 4:
+ return *(uint32_t *)src;
+ default:
+ g_assert_not_reached();
+ }
+}
+
+static void
+writer (void *src, uint32_t value, int size)
+{
+ switch (size)
+ {
+ case 1:
+ *(uint8_t *)src = value;
+ break;
+
+ case 2:
+ *(uint16_t *)src = value;
+ break;
+
+ case 4:
+ *(uint32_t *)src = value;
+ break;
+
+ default:
+ break;
+ }
+}
+
+int
+main (int argc, char **argv)
+{
+#define d2f pixman_double_to_fixed
+
+ GtkWidget *window, *swindow;
+ GtkWidget *table;
+ uint32_t *dest = malloc (WIDTH * HEIGHT * 4);
+ uint32_t *src = malloc (WIDTH * HEIGHT * 4);
+ pixman_image_t *src_img;
+ pixman_image_t *dest_img;
+ pixman_point_fixed_t p1 = { -10 << 0, 0 };
+ pixman_point_fixed_t p2 = { WIDTH << 16, (HEIGHT - 10) << 16 };
+ uint16_t full = 0xcfff;
+ uint16_t low = 0x5000;
+ uint16_t alpha = 0xffff;
+ pixman_gradient_stop_t stops[6] =
+ {
+ { d2f (0.0), { full, low, low, alpha } },
+ { d2f (0.25), { full, full, low, alpha } },
+ { d2f (0.4), { low, full, low, alpha } },
+ { d2f (0.6), { low, full, full, alpha } },
+ { d2f (0.8), { low, low, full, alpha } },
+ { d2f (1.0), { full, low, full, alpha } },
+ };
+
+ int i;
+
+ gtk_init (&argc, &argv);
+
+ window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+
+ gtk_window_set_default_size (GTK_WINDOW (window), 800, 600);
+
+ g_signal_connect (window, "delete-event",
+ G_CALLBACK (gtk_main_quit),
+ NULL);
+ table = gtk_table_new (G_N_ELEMENTS (operators) / 6, 6, TRUE);
+
+ src_img = pixman_image_create_linear_gradient (&p1, &p2, stops,
+ sizeof (stops) / sizeof (stops[0]));
+
+ pixman_image_set_repeat (src_img, PIXMAN_REPEAT_PAD);
+
+ dest_img = pixman_image_create_bits (PIXMAN_a8r8g8b8,
+ WIDTH, HEIGHT,
+ dest,
+ WIDTH * 4);
+ pixman_image_set_accessors (dest_img, reader, writer);
+
+ for (i = 0; i < G_N_ELEMENTS (operators); ++i)
+ {
+ GtkWidget *image;
+ GdkPixbuf *pixbuf;
+ GtkWidget *vbox;
+ GtkWidget *label;
+ int j, k;
+
+ vbox = gtk_vbox_new (FALSE, 0);
+
+ label = gtk_label_new (operators[i].name);
+ gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 6);
+ gtk_widget_show (label);
+
+ for (j = 0; j < HEIGHT; ++j)
+ {
+ for (k = 0; k < WIDTH; ++k)
+ dest[j * WIDTH + k] = 0x7f6f6f00;
+ }
+ pixman_image_composite (operators[i].op, src_img, NULL, dest_img,
+ 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
+ pixbuf = pixbuf_from_argb32 (pixman_image_get_data (dest_img), TRUE,
+ WIDTH, HEIGHT, WIDTH * 4);
+ image = gtk_image_new_from_pixbuf (pixbuf);
+ gtk_box_pack_start (GTK_BOX (vbox), image, FALSE, FALSE, 0);
+ gtk_widget_show (image);
+
+ gtk_table_attach_defaults (GTK_TABLE (table), vbox,
+ i % 6, (i % 6) + 1, i / 6, (i / 6) + 1);
+ gtk_widget_show (vbox);
+
+ g_object_unref (pixbuf);
+ }
+
+ pixman_image_unref (src_img);
+ free (src);
+ pixman_image_unref (dest_img);
+ free (dest);
+
+ swindow = gtk_scrolled_window_new (NULL, NULL);
+ gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
+ GTK_POLICY_AUTOMATIC,
+ GTK_POLICY_AUTOMATIC);
+
+ gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (swindow), table);
+ gtk_widget_show (table);
+
+ gtk_container_add (GTK_CONTAINER (window), swindow);
+ gtk_widget_show (swindow);
+
+ gtk_widget_show (window);
+
+ gtk_main ();
+
+ return 0;
+}
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