/* GTK - The GIMP Toolkit * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /* Note: these #includes differ slightly from the testrgb.c file included in the GdkRgb release. */ /* For gettimeofday */ #include #include #include #include #include "gtk.h" static void quit_func (GtkWidget *widget, gpointer dummy) { gtk_main_quit (); } #define WIDTH 320 #define HEIGHT 200 gdouble get_time (void) { struct timeval tv; struct timezone tz; gettimeofday (&tv, &tz); return tv.tv_sec + 1e-6 * tv.tv_usec; } #define NUM_ITERS 100 static void testrgb_rgb_test (GtkWidget *drawing_area) { guchar buf[WIDTH * HEIGHT * 6]; gint i, j; gint offset; guchar val; gdouble start_time, total_time; gint x, y; gboolean dither; int dith_max; val = 0; for (j = 0; j < WIDTH * HEIGHT * 6; j++) { val = (val + ((val + (rand () & 0xff)) >> 1)) >> 1; buf[j] = val; } /* Let's warm up the cache, and also wait for the window manager to settle. */ for (i = 0; i < NUM_ITERS; i++) { offset = (rand () % (WIDTH * HEIGHT * 3)) & -4; gdk_draw_rgb_image (drawing_area->window, drawing_area->style->white_gc, 0, 0, WIDTH, HEIGHT, GDK_RGB_DITHER_NONE, buf + offset, WIDTH * 3); } if (gdk_rgb_ditherable ()) dith_max = 2; else dith_max = 1; for (dither = 0; dither < dith_max; dither++) { start_time = get_time (); for (i = 0; i < NUM_ITERS; i++) { offset = (rand () % (WIDTH * HEIGHT * 3)) & -4; gdk_draw_rgb_image (drawing_area->window, drawing_area->style->white_gc, 0, 0, WIDTH, HEIGHT, dither ? GDK_RGB_DITHER_MAX : GDK_RGB_DITHER_NONE, buf + offset, WIDTH * 3); } total_time = get_time () - start_time; g_print ("Color test%s time elapsed: %.2fs, %.1f fps, %.2f megapixels/s\n", dither ? " (dithered)" : "", total_time, NUM_ITERS / total_time, NUM_ITERS * (WIDTH * HEIGHT * 1e-6) / total_time); } for (dither = 0; dither < dith_max; dither++) { start_time = get_time (); for (i = 0; i < NUM_ITERS; i++) { offset = (rand () % (WIDTH * HEIGHT)) & -4; gdk_draw_gray_image (drawing_area->window, drawing_area->style->white_gc, 0, 0, WIDTH, HEIGHT, dither ? GDK_RGB_DITHER_MAX : GDK_RGB_DITHER_NONE, buf + offset, WIDTH); } total_time = get_time () - start_time; g_print ("Grayscale test%s time elapsed: %.2fs, %.1f fps, %.2f megapixels/s\n", dither ? " (dithered)" : "", total_time, NUM_ITERS / total_time, NUM_ITERS * (WIDTH * HEIGHT * 1e-6) / total_time); } g_print ("Please submit these results to http://www.levien.com/gdkrgb/survey.html\n"); #if 1 for (x = 0; x < WIDTH; x++) { int cindex; cindex = (x * 8) / WIDTH; buf[x * 3] = cindex & 4 ? 0 : 255; buf[x * 3 + 1] = cindex & 2 ? 0 : 255; buf[x * 3 + 2] = cindex & 1 ? 0 : 255; } for (y = 1; y < (HEIGHT * 19) / 32; y++) { memcpy (buf + y * WIDTH * 3, buf, WIDTH * 3); } for (; y < (HEIGHT * 20) / 32; y++) { for (x = 0; x < WIDTH; x++) { guchar gray; gray = (x * 255) / (WIDTH - 1); buf[y * WIDTH * 3 + x * 3] = gray; buf[y * WIDTH * 3 + x * 3 + 1] = 0; buf[y * WIDTH * 3 + x * 3 + 2] = 0; } } for (; y < (HEIGHT * 21) / 32; y++) { for (x = 0; x < WIDTH; x++) { guchar gray; gray = (x * 255) / (WIDTH - 1); buf[y * WIDTH * 3 + x * 3] = 0; buf[y * WIDTH * 3 + x * 3 + 1] = gray; buf[y * WIDTH * 3 + x * 3 + 2] = 0; } } for (; y < (HEIGHT * 22) / 32; y++) { for (x = 0; x < WIDTH; x++) { guchar gray; gray = (x * 255) / (WIDTH - 1); buf[y * WIDTH * 3 + x * 3] = 0; buf[y * WIDTH * 3 + x * 3 + 1] = 0; buf[y * WIDTH * 3 + x * 3 + 2] = gray; } } for (; y < (HEIGHT * 24) / 32; y++) { for (x = 0; x < WIDTH; x++) { guchar gray; gray = 112 + (x * 31) / (WIDTH - 1); buf[y * WIDTH * 3 + x * 3] = gray; buf[y * WIDTH * 3 + x * 3 + 1] = gray; buf[y * WIDTH * 3 + x * 3 + 2] = gray; } } for (; y < (HEIGHT * 26) / 32; y++) { for (x = 0; x < WIDTH; x++) { guchar gray; gray = (x * 255) / (WIDTH - 1); buf[y * WIDTH * 3 + x * 3] = gray; buf[y * WIDTH * 3 + x * 3 + 1] = gray; buf[y * WIDTH * 3 + x * 3 + 2] = gray; } } for (; y < HEIGHT; y++) { for (x = 0; x < WIDTH; x++) { int cindex; guchar gray; cindex = (x * 16) / WIDTH; gray = cindex < 3 ? 0 : cindex < 5 ? 255 : cindex < 7 ? 128 : 0; buf[y * WIDTH * 3 + x * 3] = gray; buf[y * WIDTH * 3 + x * 3 + 1] = gray; buf[y * WIDTH * 3 + x * 3 + 2] = gray; } } gdk_draw_rgb_image (drawing_area->window, drawing_area->style->white_gc, 0, 0, WIDTH, HEIGHT, GDK_RGB_DITHER_MAX, buf, WIDTH * 3); #endif } void new_testrgb_window (void) { GtkWidget *window; GtkWidget *vbox; GtkWidget *button; GtkWidget *drawing_area; window = gtk_widget_new (gtk_window_get_type (), "GtkObject::user_data", NULL, "GtkWindow::type", GTK_WINDOW_TOPLEVEL, "GtkWindow::title", "testrgb", "GtkWindow::allow_shrink", FALSE, NULL); gtk_signal_connect (GTK_OBJECT (window), "destroy", (GtkSignalFunc) quit_func, NULL); vbox = gtk_vbox_new (FALSE, 0); drawing_area = gtk_drawing_area_new (); gtk_widget_set_usize (drawing_area, WIDTH, HEIGHT); gtk_box_pack_start (GTK_BOX (vbox), drawing_area, FALSE, FALSE, 0); gtk_widget_show (drawing_area); button = gtk_button_new_with_label ("Quit"); gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0); gtk_signal_connect_object (GTK_OBJECT (button), "clicked", (GtkSignalFunc) gtk_widget_destroy, GTK_OBJECT (window)); gtk_widget_show (button); gtk_container_add (GTK_CONTAINER (window), vbox); gtk_widget_show (vbox); gtk_widget_show (window); testrgb_rgb_test (drawing_area); } int main (int argc, char **argv) { gtk_init (&argc, &argv); gdk_rgb_set_verbose (TRUE); gdk_rgb_init (); gtk_widget_set_default_colormap (gdk_rgb_get_cmap ()); gtk_widget_set_default_visual (gdk_rgb_get_visual ()); new_testrgb_window (); gtk_main (); return 0; }