progs/xdemos/msctest.c

   1 /*
   2  * Copyright © 2009 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Jesse Barnes <jesse.barnes@intel.com>
  25  *
  26  */
  27
  28 /** @file msctest.c
  29  * Simple test for MSC functionality.
  30  */
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34 #include <unistd.h>
  35 #include <GL/gl.h>
  36 #include <GL/glu.h>
  37 #include <GL/glx.h>
  38 #include <GL/glxext.h>
  39 #include <X11/X.h>
  40 #include <X11/Xlib.h>
  41 #include <X11/Xutil.h>
  42
  43 void (*get_sync_values)(Display *dpy, Window winGL, int64_t *ust, int64_t *msc, int64_t *sbc);
  44 void (*wait_sync)(Display *dpy, Window winGL, int64_t target_msc, int64_t divisor, int64_t remainder, int64_t *ust, int64_t *msc, int64_t *sbc);
  45
  46 static int GLXExtensionSupported(Display *dpy, const char *extension)
  47 {
  48         const char *extensionsString, *client_extensions, *pos;
  49
  50         extensionsString = glXQueryExtensionsString(dpy, DefaultScreen(dpy));
  51         client_extensions = glXGetClientString(dpy, GLX_EXTENSIONS);
  52
  53         pos = strstr(extensionsString, extension);
  54
  55         if (pos != NULL && (pos == extensionsString || pos[-1] == ' ') &&
  56             (pos[strlen(extension)] == ' ' || pos[strlen(extension)] == '\0'))
  57                 return 1;
  58
  59         pos = strstr(client_extensions, extension);
  60
  61         if (pos != NULL && (pos == extensionsString || pos[-1] == ' ') &&
  62             (pos[strlen(extension)] == ' ' || pos[strlen(extension)] == '\0'))
  63                 return 1;
  64
  65         return 0;
  66 }
  67
  68 extern char *optarg;
  69 extern int optind, opterr, optopt;
  70 static char optstr[] = "v";
  71
  72 static void usage(char *name)
  73 {
  74         printf("usage: %s\n", name);
  75         exit(-1);
  76 }
  77
  78 int main(int argc, char *argv[])
  79 {
  80         Display *disp;
  81         XVisualInfo *pvi;
  82         XSetWindowAttributes swa;
  83         int attrib[14];
  84         Window winGL;
  85         GLXContext context;
  86         int dummy;
  87         Atom wmDelete;
  88         int verbose = 0, width = 200, height = 200;
  89         int c, i = 1;
  90         int64_t ust, msc, sbc;
  91
  92         opterr = 0;
  93         while ((c = getopt(argc, argv, optstr)) != -1) {
  94                 switch (c) {
  95                 case 'v':
  96                         verbose = 1;
  97                         break;
  98                 default:
  99                         usage(argv[0]);
 100                         break;
 101                 }
 102         }
 103
 104         disp = XOpenDisplay(NULL);
 105         if (!disp) {
 106                 fprintf(stderr, "failed to open display\n");
 107                 return -1;
 108         }
 109
 110         if (!glXQueryExtension(disp, &dummy, &dummy)) {
 111                 fprintf(stderr, "glXQueryExtension failed\n");
 112                 return -1;
 113         }
 114
 115         if (!GLXExtensionSupported(disp, "GLX_OML_sync_control")) {
 116                 fprintf(stderr, "GLX_OML_sync_control not supported, exiting\n");
 117                 return -1;
 118         }
 119
 120         attrib[0] = GLX_RGBA;
 121         attrib[1] = 1;
 122         attrib[2] = GLX_RED_SIZE;
 123         attrib[3] = 1;
 124         attrib[4] = GLX_GREEN_SIZE;
 125         attrib[5] = 1;
 126         attrib[6] = GLX_BLUE_SIZE;
 127         attrib[7] = 1;
 128         attrib[8] = GLX_DOUBLEBUFFER;
 129         attrib[9] = 1;
 130         attrib[10] = None;
 131
 132         pvi = glXChooseVisual(disp, DefaultScreen(disp), attrib);
 133         if (!pvi) {
 134                 fprintf(stderr, "failed to choose visual, exiting\n");
 135                 return -1;
 136         }
 137
 138         context = glXCreateContext(disp, pvi, None, GL_TRUE);
 139         if (!context) {
 140                 fprintf(stderr, "failed to create glx context\n");
 141                 return -1;
 142         }
 143
 144         pvi->screen = DefaultScreen(disp);
 145
 146         swa.colormap = XCreateColormap(disp, RootWindow(disp, pvi->screen),
 147                                        pvi->visual, AllocNone);
 148         swa.border_pixel = 0;
 149         swa.event_mask = ExposureMask | KeyPressMask | ButtonPressMask |
 150                 StructureNotifyMask;
 151         winGL = XCreateWindow(disp, RootWindow(disp, pvi->screen),
 152                               0, 0,
 153                               width, height,
 154                               0, pvi->depth, InputOutput, pvi->visual,
 155                               CWBorderPixel | CWColormap | CWEventMask, &swa);
 156         if (!winGL) {
 157                 fprintf(stderr, "window creation failed\n");
 158                 return -1;
 159         }
 160         wmDelete = XInternAtom(disp, "WM_DELETE_WINDOW", True);
 161         XSetWMProtocols(disp, winGL, &wmDelete, 1);
 162
 163         XSetStandardProperties(disp, winGL, "msc test", "msc text",
 164                                None, NULL, 0, NULL);
 165
 166         XMapRaised(disp, winGL);
 167
 168         glXMakeCurrent(disp, winGL, context);
 169
 170         get_sync_values = glXGetProcAddress((unsigned char *)"glXGetSyncValuesOML");
 171         wait_sync = glXGetProcAddress((unsigned char *)"glXWaitForMscOML");
 172
 173         if (!get_sync_values || !wait_sync) {
 174                 fprintf(stderr, "failed to get sync values function\n");
 175                 return -1;
 176         }
 177
 178         while (i++) {
 179                 get_sync_values(disp, winGL, &ust, &msc, &sbc);
 180                 fprintf(stderr, "ust: %llu, msc: %llu, sbc: %llu\n", ust, msc,
 181                         sbc);
 182
 183                 /* Alternate colors to make tearing obvious */
 184                 if (i & 1)
 185                         glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
 186                 else
 187                         glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
 188                 glClear(GL_COLOR_BUFFER_BIT);
 189                 glXSwapBuffers(disp, winGL);
 190                 wait_sync(disp, winGL, 0, 60, 0, &ust, &msc, &sbc);
 191                 fprintf(stderr,
 192                         "wait returned ust: %llu, msc: %llu, sbc: %llu\n",
 193                         ust, msc, sbc);
 194                 sleep(1);
 195         }
 196
 197         XDestroyWindow(disp, winGL);
 198         glXDestroyContext(disp, context);
 199         XCloseDisplay(disp);
 200
 201         return 0;
 202 }