1 #include <gtk/gtk.h> 2 #include <stdlib.h> 3 #include <stdio.h> 4 #include "pixman.h" 5 #include "gtk-utils.h" 6 #include "parrot.c" 7 8 #define WIDTH 80 9 #define HEIGHT 80 10 11 typedef struct { 12 const char *name; 13 pixman_op_t op; 14 } operator_t; 15 16 static const operator_t operators[] = { 17 { "CLEAR", PIXMAN_OP_CLEAR }, 18 { "SRC", PIXMAN_OP_SRC }, 19 { "DST", PIXMAN_OP_DST }, 20 { "OVER", PIXMAN_OP_OVER }, 21 { "OVER_REVERSE", PIXMAN_OP_OVER_REVERSE }, 22 { "IN", PIXMAN_OP_IN }, 23 { "IN_REVERSE", PIXMAN_OP_IN_REVERSE }, 24 { "OUT", PIXMAN_OP_OUT }, 25 { "OUT_REVERSE", PIXMAN_OP_OUT_REVERSE }, 26 { "ATOP", PIXMAN_OP_ATOP }, 27 { "ATOP_REVERSE", PIXMAN_OP_ATOP_REVERSE }, 28 { "XOR", PIXMAN_OP_XOR }, 29 { "ADD", PIXMAN_OP_ADD }, 30 { "SATURATE", PIXMAN_OP_SATURATE }, 31 32 { "MULTIPLY", PIXMAN_OP_MULTIPLY }, 33 { "SCREEN", PIXMAN_OP_SCREEN }, 34 { "OVERLAY", PIXMAN_OP_OVERLAY }, 35 { "DARKEN", PIXMAN_OP_DARKEN }, 36 { "LIGHTEN", PIXMAN_OP_LIGHTEN }, 37 { "COLOR_DODGE", PIXMAN_OP_COLOR_DODGE }, 38 { "COLOR_BURN", PIXMAN_OP_COLOR_BURN }, 39 { "HARD_LIGHT", PIXMAN_OP_HARD_LIGHT }, 40 { "SOFT_LIGHT", PIXMAN_OP_SOFT_LIGHT }, 41 { "DIFFERENCE", PIXMAN_OP_DIFFERENCE }, 42 { "EXCLUSION", PIXMAN_OP_EXCLUSION }, 43 { "HSL_HUE", PIXMAN_OP_HSL_HUE }, 44 { "HSL_SATURATION", PIXMAN_OP_HSL_SATURATION }, 45 { "HSL_COLOR", PIXMAN_OP_HSL_COLOR }, 46 { "HSL_LUMINOSITY", PIXMAN_OP_HSL_LUMINOSITY }, 47 }; 48 49 static uint32_t 50 reader (const void *src, int size) 51 { 52 switch (size) 53 { 54 case 1: 55 return *(uint8_t *)src; 56 case 2: 57 return *(uint16_t *)src; 58 case 4: 59 return *(uint32_t *)src; 60 default: 61 g_assert_not_reached(); 62 } 63 } 64 65 static void 66 writer (void *src, uint32_t value, int size) 67 { 68 switch (size) 69 { 70 case 1: 71 *(uint8_t *)src = value; 72 break; 73 74 case 2: 75 *(uint16_t *)src = value; 76 break; 77 78 case 4: 79 *(uint32_t *)src = value; 80 break; 81 82 default: 83 break; 84 } 85 } 86 87 int 88 main (int argc, char **argv) 89 { 90 #define d2f pixman_double_to_fixed 91 92 GtkWidget *window, *swindow; 93 GtkWidget *table; 94 uint32_t *dest = malloc (WIDTH * HEIGHT * 4); 95 uint32_t *src = malloc (WIDTH * HEIGHT * 4); 96 pixman_image_t *gradient, *parrot; 97 pixman_image_t *dest_img; 98 pixman_point_fixed_t p1 = { -10 << 16, 10 << 16 }; 99 pixman_point_fixed_t p2 = { (WIDTH + 10) << 16, (HEIGHT - 10) << 16 }; 100 uint16_t alpha = 0xdddd; 101 pixman_gradient_stop_t stops[6] = 102 { 103 { d2f (0.0), { 0xf2f2, 0x8787, 0x7d7d, alpha } }, 104 { d2f (0.22), { 0xf3f3, 0xeaea, 0x8383, alpha } }, 105 { d2f (0.42), { 0x6b6b, 0xc0c0, 0x7777, alpha } }, 106 { d2f (0.57), { 0x4b4b, 0xc9c9, 0xf5f5, alpha } }, 107 { d2f (0.75), { 0x6a6a, 0x7f7f, 0xbebe, alpha } }, 108 { d2f (1.0), { 0xeded, 0x8282, 0xb0b0, alpha } }, 109 }; 110 111 int i; 112 113 gtk_init (&argc, &argv); 114 115 window = gtk_window_new (GTK_WINDOW_TOPLEVEL); 116 117 gtk_window_set_default_size (GTK_WINDOW (window), 800, 600); 118 119 g_signal_connect (window, "delete-event", 120 G_CALLBACK (gtk_main_quit), 121 NULL); 122 table = gtk_table_new (G_N_ELEMENTS (operators) / 6, 6, TRUE); 123 124 gradient = pixman_image_create_linear_gradient (&p1, &p2, stops, G_N_ELEMENTS (stops)); 125 parrot = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, (uint32_t *)parrot_bits, WIDTH * 4); 126 127 pixman_image_set_repeat (gradient, PIXMAN_REPEAT_PAD); 128 129 dest_img = pixman_image_create_bits (PIXMAN_a8r8g8b8, 130 WIDTH, HEIGHT, 131 NULL, 132 WIDTH * 4); 133 pixman_image_set_accessors (dest_img, reader, writer); 134 135 for (i = 0; i < G_N_ELEMENTS (operators); ++i) 136 { 137 GtkWidget *image; 138 GdkPixbuf *pixbuf; 139 GtkWidget *vbox; 140 GtkWidget *label; 141 142 vbox = gtk_vbox_new (FALSE, 0); 143 144 label = gtk_label_new (operators[i].name); 145 gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 6); 146 gtk_widget_show (label); 147 148 pixman_image_composite (PIXMAN_OP_SRC, gradient, NULL, dest_img, 149 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT); 150 pixman_image_composite (operators[i].op, parrot, NULL, dest_img, 151 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT); 152 pixbuf = pixbuf_from_argb32 (pixman_image_get_data (dest_img), 153 WIDTH, HEIGHT, WIDTH * 4); 154 image = gtk_image_new_from_pixbuf (pixbuf); 155 gtk_box_pack_start (GTK_BOX (vbox), image, FALSE, FALSE, 0); 156 gtk_widget_show (image); 157 158 gtk_table_attach_defaults (GTK_TABLE (table), vbox, 159 i % 6, (i % 6) + 1, i / 6, (i / 6) + 1); 160 gtk_widget_show (vbox); 161 162 g_object_unref (pixbuf); 163 } 164 165 pixman_image_unref (gradient); 166 free (src); 167 pixman_image_unref (dest_img); 168 free (dest); 169 170 swindow = gtk_scrolled_window_new (NULL, NULL); 171 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow), 172 GTK_POLICY_AUTOMATIC, 173 GTK_POLICY_AUTOMATIC); 174 175 gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (swindow), table); 176 gtk_widget_show (table); 177 178 gtk_container_add (GTK_CONTAINER (window), swindow); 179 gtk_widget_show (swindow); 180 181 gtk_widget_show (window); 182 183 gtk_main (); 184 185 return 0; 186 } 187
