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