1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
18 */
19
20 #include "config.h"
21
22 #include <glib.h>
23
24 /*
25 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
26 * file for a list of people on the GTK+ Team. See the ChangeLog
27 * files for a list of changes. These files are distributed with
28 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
29 */
30
31
32 /* Note: these #includes differ slightly from the testrgb.c file included
33 in the GdkRgb release. */
34
35 #include <stdlib.h>
36 #ifdef HAVE_UNISTD_H
37 #include <unistd.h>
38 #endif
39 #include <string.h>
40
41 #undef GDK_DISABLE_DEPRECATED
42
43 #include "gtk/gtk.h"
44
45 static void
quit_func(GtkWidget * widget,gpointer dummy)46 quit_func (GtkWidget *widget, gpointer dummy)
47 {
48 gtk_main_quit ();
49 }
50
51 #define WIDTH 640
52 #define HEIGHT 400
53 #define NUM_ITERS 50
54
55 static void
testrgb_rgb_test(GtkWidget * drawing_area)56 testrgb_rgb_test (GtkWidget *drawing_area)
57 {
58 guchar *buf;
59 gint i, j;
60 gint offset;
61 guchar val;
62 gdouble start_time, total_time;
63 gint x, y;
64 gboolean dither;
65 int dith_max;
66 GTimer *timer;
67 GdkPixbuf *pixbuf;
68 gboolean to_pixmap;
69
70 buf = g_malloc (WIDTH * HEIGHT * 8);
71
72 val = 0;
73 for (j = 0; j < WIDTH * HEIGHT * 8; j++)
74 {
75 val = (val + ((val + (rand () & 0xff)) >> 1)) >> 1;
76 buf[j] = val;
77 }
78
79 /* Let's warm up the cache, and also wait for the window manager
80 to settle. */
81 for (i = 0; i < NUM_ITERS; i++)
82 {
83 offset = (rand () % (WIDTH * HEIGHT * 3)) & -4;
84 gdk_draw_rgb_image (drawing_area->window,
85 drawing_area->style->white_gc,
86 0, 0, WIDTH, HEIGHT,
87 GDK_RGB_DITHER_NONE,
88 buf + offset, WIDTH * 3);
89 }
90
91 if (gdk_rgb_ditherable ())
92 dith_max = 2;
93 else
94 dith_max = 1;
95
96 timer = g_timer_new ();
97 for (dither = 0; dither < dith_max; dither++)
98 {
99 start_time = g_timer_elapsed (timer, NULL);
100 for (i = 0; i < NUM_ITERS; i++)
101 {
102 offset = (rand () % (WIDTH * HEIGHT * 3)) & -4;
103 gdk_draw_rgb_image (drawing_area->window,
104 drawing_area->style->white_gc,
105 0, 0, WIDTH, HEIGHT,
106 dither ? GDK_RGB_DITHER_MAX :
107 GDK_RGB_DITHER_NONE,
108 buf + offset, WIDTH * 3);
109 }
110 gdk_flush ();
111 total_time = g_timer_elapsed (timer, NULL) - start_time;
112 g_print ("Color test%s time elapsed: %.2fs, %.1f fps, %.2f megapixels/s\n",
113 dither ? " (dithered)" : "",
114 total_time,
115 NUM_ITERS / total_time,
116 NUM_ITERS * (WIDTH * HEIGHT * 1e-6) / total_time);
117 }
118
119 for (dither = 0; dither < dith_max; dither++)
120 {
121 start_time = g_timer_elapsed (timer, NULL);
122 for (i = 0; i < NUM_ITERS; i++)
123 {
124 offset = (rand () % (WIDTH * HEIGHT)) & -4;
125 gdk_draw_gray_image (drawing_area->window,
126 drawing_area->style->white_gc,
127 0, 0, WIDTH, HEIGHT,
128 dither ? GDK_RGB_DITHER_MAX :
129 GDK_RGB_DITHER_NONE,
130 buf + offset, WIDTH);
131 }
132 gdk_flush ();
133 total_time = g_timer_elapsed (timer, NULL) - start_time;
134 g_print ("Grayscale test%s time elapsed: %.2fs, %.1f fps, %.2f megapixels/s\n",
135 dither ? " (dithered)" : "",
136 total_time,
137 NUM_ITERS / total_time,
138 NUM_ITERS * (WIDTH * HEIGHT * 1e-6) / total_time);
139 }
140
141 for (to_pixmap = FALSE; to_pixmap <= TRUE; to_pixmap++)
142 {
143 if (to_pixmap)
144 {
145 GdkRectangle rect = { 0, 0, WIDTH, HEIGHT };
146 gdk_window_begin_paint_rect (drawing_area->window, &rect);
147 }
148
149 start_time = g_timer_elapsed (timer, NULL);
150 for (i = 0; i < NUM_ITERS; i++)
151 {
152 cairo_t *cr;
153
154 offset = (rand () % (WIDTH * HEIGHT * 4)) & -4;
155 pixbuf = gdk_pixbuf_new_from_data (buf + offset, GDK_COLORSPACE_RGB, TRUE,
156 8, WIDTH, HEIGHT, WIDTH * 4,
157 NULL, NULL);
158 cr = gdk_cairo_create (drawing_area->window);
159 gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
160 cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT);
161 cairo_fill (cr);
162 cairo_destroy (cr);
163 g_object_unref (pixbuf);
164 }
165 gdk_flush ();
166 total_time = g_timer_elapsed (timer, NULL) - start_time;
167
168 if (to_pixmap)
169 gdk_window_end_paint (drawing_area->window);
170
171 g_print ("Alpha test%s time elapsed: %.2fs, %.1f fps, %.2f megapixels/s\n",
172 to_pixmap ? " (to pixmap)" : "",
173 total_time,
174 NUM_ITERS / total_time,
175 NUM_ITERS * (WIDTH * HEIGHT * 1e-6) / total_time);
176 }
177
178 g_print ("Please submit these results to http://www.levien.com/gdkrgb/survey.html\n");
179
180 #if 1
181 for (x = 0; x < WIDTH; x++)
182 {
183 int cindex;
184
185 cindex = (x * 8) / WIDTH;
186 buf[x * 3] = cindex & 4 ? 0 : 255;
187 buf[x * 3 + 1] = cindex & 2 ? 0 : 255;
188 buf[x * 3 + 2] = cindex & 1 ? 0 : 255;
189 }
190 for (y = 1; y < (HEIGHT * 19) / 32; y++)
191 {
192 memcpy (buf + y * WIDTH * 3, buf, WIDTH * 3);
193 }
194 for (; y < (HEIGHT * 20) / 32; y++)
195 {
196 for (x = 0; x < WIDTH; x++)
197 {
198 guchar gray;
199
200 gray = (x * 255) / (WIDTH - 1);
201 buf[y * WIDTH * 3 + x * 3] = gray;
202 buf[y * WIDTH * 3 + x * 3 + 1] = 0;
203 buf[y * WIDTH * 3 + x * 3 + 2] = 0;
204 }
205 }
206 for (; y < (HEIGHT * 21) / 32; y++)
207 {
208 for (x = 0; x < WIDTH; x++)
209 {
210 guchar gray;
211
212 gray = (x * 255) / (WIDTH - 1);
213 buf[y * WIDTH * 3 + x * 3] = 0;
214 buf[y * WIDTH * 3 + x * 3 + 1] = gray;
215 buf[y * WIDTH * 3 + x * 3 + 2] = 0;
216 }
217 }
218 for (; y < (HEIGHT * 22) / 32; y++)
219 {
220 for (x = 0; x < WIDTH; x++)
221 {
222 guchar gray;
223
224 gray = (x * 255) / (WIDTH - 1);
225 buf[y * WIDTH * 3 + x * 3] = 0;
226 buf[y * WIDTH * 3 + x * 3 + 1] = 0;
227 buf[y * WIDTH * 3 + x * 3 + 2] = gray;
228 }
229 }
230 for (; y < (HEIGHT * 24) / 32; y++)
231 {
232 for (x = 0; x < WIDTH; x++)
233 {
234 guchar gray;
235
236 gray = 112 + (x * 31) / (WIDTH - 1);
237 buf[y * WIDTH * 3 + x * 3] = gray;
238 buf[y * WIDTH * 3 + x * 3 + 1] = gray;
239 buf[y * WIDTH * 3 + x * 3 + 2] = gray;
240 }
241 }
242 for (; y < (HEIGHT * 26) / 32; y++)
243 {
244 for (x = 0; x < WIDTH; x++)
245 {
246 guchar gray;
247
248 gray = (x * 255) / (WIDTH - 1);
249 buf[y * WIDTH * 3 + x * 3] = gray;
250 buf[y * WIDTH * 3 + x * 3 + 1] = gray;
251 buf[y * WIDTH * 3 + x * 3 + 2] = gray;
252 }
253 }
254
255 for (; y < HEIGHT; y++)
256 {
257 for (x = 0; x < WIDTH; x++)
258 {
259 int cindex;
260 guchar gray;
261
262 cindex = (x * 16) / WIDTH;
263 gray = cindex < 3 ? 0 :
264 cindex < 5 ? 255 :
265 cindex < 7 ? 128 :
266 0;
267 buf[y * WIDTH * 3 + x * 3] = gray;
268 buf[y * WIDTH * 3 + x * 3 + 1] = gray;
269 buf[y * WIDTH * 3 + x * 3 + 2] = gray;
270 }
271 }
272 gdk_draw_rgb_image (drawing_area->window,
273 drawing_area->style->white_gc,
274 0, 0, WIDTH, HEIGHT, GDK_RGB_DITHER_MAX,
275 buf, WIDTH * 3);
276 #endif
277 }
278
279 void
new_testrgb_window(void)280 new_testrgb_window (void)
281 {
282 GtkWidget *window;
283 GtkWidget *vbox;
284 GtkWidget *button;
285 GtkWidget *drawing_area;
286
287 window = g_object_new (gtk_window_get_type (),
288 "GtkObject::user_data", NULL,
289 "GtkWindow::type", GTK_WINDOW_TOPLEVEL,
290 "GtkWindow::title", "testrgb",
291 "GtkWindow::allow_shrink", FALSE,
292 NULL);
293 g_signal_connect (window, "destroy",
294 G_CALLBACK (quit_func), NULL);
295
296 vbox = gtk_vbox_new (FALSE, 0);
297
298 drawing_area = gtk_drawing_area_new ();
299
300 gtk_widget_set_size_request (drawing_area, WIDTH, HEIGHT);
301 gtk_box_pack_start (GTK_BOX (vbox), drawing_area, FALSE, FALSE, 0);
302 gtk_widget_show (drawing_area);
303
304 button = gtk_button_new_with_label ("Quit");
305 gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
306 g_signal_connect_swapped (button, "clicked",
307 G_CALLBACK (gtk_widget_destroy), window);
308
309 gtk_widget_show (button);
310
311 gtk_container_add (GTK_CONTAINER (window), vbox);
312 gtk_widget_show (vbox);
313
314 gtk_widget_show (window);
315
316 testrgb_rgb_test (drawing_area);
317 }
318
319 int
main(int argc,char ** argv)320 main (int argc, char **argv)
321 {
322 gtk_init (&argc, &argv);
323
324 gdk_rgb_set_verbose (TRUE);
325
326 gtk_widget_set_default_colormap (gdk_rgb_get_colormap ());
327 new_testrgb_window ();
328
329 gtk_main ();
330
331 return 0;
332 }
333