mirror of
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333 lines
8.4 KiB
C
333 lines
8.4 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 Lesser 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser 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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#include "config.h"
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#include <glib.h>
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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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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#include <stdlib.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <string.h>
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#undef GDK_DISABLE_DEPRECATED
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#include "gtk/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 640
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#define HEIGHT 400
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#define NUM_ITERS 50
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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;
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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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GTimer *timer;
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GdkPixbuf *pixbuf;
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gboolean to_pixmap;
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buf = g_malloc (WIDTH * HEIGHT * 8);
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val = 0;
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for (j = 0; j < WIDTH * HEIGHT * 8; 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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timer = g_timer_new ();
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for (dither = 0; dither < dith_max; dither++)
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{
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start_time = g_timer_elapsed (timer, NULL);
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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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gdk_flush ();
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total_time = g_timer_elapsed (timer, NULL) - 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 = g_timer_elapsed (timer, NULL);
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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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gdk_flush ();
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total_time = g_timer_elapsed (timer, NULL) - 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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for (to_pixmap = FALSE; to_pixmap <= TRUE; to_pixmap++)
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{
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if (to_pixmap)
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{
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GdkRectangle rect = { 0, 0, WIDTH, HEIGHT };
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gdk_window_begin_paint_rect (drawing_area->window, &rect);
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}
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start_time = g_timer_elapsed (timer, NULL);
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for (i = 0; i < NUM_ITERS; i++)
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{
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cairo_t *cr;
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offset = (rand () % (WIDTH * HEIGHT * 4)) & -4;
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pixbuf = gdk_pixbuf_new_from_data (buf + offset, GDK_COLORSPACE_RGB, TRUE,
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8, WIDTH, HEIGHT, WIDTH * 4,
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NULL, NULL);
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cr = gdk_cairo_create (drawing_area->window);
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gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
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cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT);
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cairo_fill (cr);
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cairo_destroy (cr);
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g_object_unref (pixbuf);
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}
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gdk_flush ();
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total_time = g_timer_elapsed (timer, NULL) - start_time;
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if (to_pixmap)
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gdk_window_end_paint (drawing_area->window);
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g_print ("Alpha test%s time elapsed: %.2fs, %.1f fps, %.2f megapixels/s\n",
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to_pixmap ? " (to pixmap)" : "",
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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 = g_object_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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g_signal_connect (window, "destroy",
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G_CALLBACK (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_size_request (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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g_signal_connect_swapped (button, "clicked",
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G_CALLBACK (gtk_widget_destroy), 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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gtk_widget_set_default_colormap (gdk_rgb_get_colormap ());
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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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