src/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/glx.h>
  37 #include <GL/glxext.h>
  38 #include <X11/X.h>
  39 #include <X11/Xlib.h>
  40 #include <X11/Xutil.h>
  41
  42 void (*get_sync_values)(Display *dpy, Window winGL, int64_t *ust, int64_t *msc, int64_t *sbc);
  43 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);
  44
  45 static int GLXExtensionSupported(Display *dpy, const char *extension)
  46 {
  47         const char *extensionsString, *pos;
  48
  49         extensionsString = glXQueryExtensionsString(dpy, DefaultScreen(dpy));
  50
  51         pos = strstr(extensionsString, extension);
  52
  53         if (pos != NULL && (pos == extensionsString || pos[-1] == ' ') &&
  54             (pos[strlen(extension)] == ' ' || pos[strlen(extension)] == '\0'))
  55                 return 1;
  56
  57         return 0;
  58 }
  59
  60 extern char *optarg;
  61 extern int optind, opterr, optopt;
  62 static char optstr[] = "v";
  63
  64 static void usage(char *name)
  65 {
  66         printf("usage: %s\n", name);
  67         exit(-1);
  68 }
  69
  70 int main(int argc, char *argv[])
  71 {
  72         Display *disp;
  73         XVisualInfo *pvi;
  74         XSetWindowAttributes swa;
  75         int attrib[14];
  76         Window winGL;
  77         GLXContext context;
  78         int dummy;
  79         Atom wmDelete;
  80         int verbose = 0, width = 200, height = 200;
  81         int c, i = 1;
  82         int64_t ust, msc, sbc;
  83
  84         opterr = 0;
  85         while ((c = getopt(argc, argv, optstr)) != -1) {
  86                 switch (c) {
  87                 case 'v':
  88                         verbose = 1;
  89                         break;
  90                 default:
  91                         usage(argv[0]);
  92                         break;
  93                 }
  94         }
  95
  96         disp = XOpenDisplay(NULL);
  97         if (!disp) {
  98                 fprintf(stderr, "failed to open display\n");
  99                 return -1;
 100         }
 101
 102         if (!glXQueryExtension(disp, &dummy, &dummy)) {
 103                 fprintf(stderr, "glXQueryExtension failed\n");
 104                 return -1;
 105         }
 106
 107         if (!GLXExtensionSupported(disp, "GLX_OML_sync_control")) {
 108                 fprintf(stderr, "GLX_OML_sync_control not supported, exiting\n");
 109                 return -1;
 110         }
 111
 112         attrib[0] = GLX_RGBA;
 113         attrib[1] = 1;
 114         attrib[2] = GLX_RED_SIZE;
 115         attrib[3] = 1;
 116         attrib[4] = GLX_GREEN_SIZE;
 117         attrib[5] = 1;
 118         attrib[6] = GLX_BLUE_SIZE;
 119         attrib[7] = 1;
 120         attrib[8] = GLX_DOUBLEBUFFER;
 121         attrib[9] = 1;
 122         attrib[10] = None;
 123
 124         pvi = glXChooseVisual(disp, DefaultScreen(disp), attrib);
 125         if (!pvi) {
 126                 fprintf(stderr, "failed to choose visual, exiting\n");
 127                 return -1;
 128         }
 129
 130         context = glXCreateContext(disp, pvi, None, GL_TRUE);
 131         if (!context) {
 132                 fprintf(stderr, "failed to create glx context\n");
 133                 return -1;
 134         }
 135
 136         pvi->screen = DefaultScreen(disp);
 137
 138         swa.colormap = XCreateColormap(disp, RootWindow(disp, pvi->screen),
 139                                        pvi->visual, AllocNone);
 140         swa.border_pixel = 0;
 141         swa.event_mask = ExposureMask | KeyPressMask | ButtonPressMask |
 142                 StructureNotifyMask;
 143         winGL = XCreateWindow(disp, RootWindow(disp, pvi->screen),
 144                               0, 0,
 145                               width, height,
 146                               0, pvi->depth, InputOutput, pvi->visual,
 147                               CWBorderPixel | CWColormap | CWEventMask, &swa);
 148         if (!winGL) {
 149                 fprintf(stderr, "window creation failed\n");
 150                 return -1;
 151         }
 152         wmDelete = XInternAtom(disp, "WM_DELETE_WINDOW", True);
 153         XSetWMProtocols(disp, winGL, &wmDelete, 1);
 154
 155         XSetStandardProperties(disp, winGL, "msc test", "msc text",
 156                                None, NULL, 0, NULL);
 157
 158         XMapRaised(disp, winGL);
 159
 160         glXMakeCurrent(disp, winGL, context);
 161
 162         get_sync_values = (void *)glXGetProcAddress((unsigned char *)"glXGetSyncValuesOML");
 163         wait_sync = (void *)glXGetProcAddress((unsigned char *)"glXWaitForMscOML");
 164
 165         if (!get_sync_values || !wait_sync) {
 166                 fprintf(stderr, "failed to get sync values function\n");
 167                 return -1;
 168         }
 169
 170         while (i++) {
 171                 get_sync_values(disp, winGL, &ust, &msc, &sbc);
 172                 fprintf(stderr, "ust: %llu, msc: %llu, sbc: %llu\n", ust, msc,
 173                         sbc);
 174
 175                 /* Alternate colors to make tearing obvious */
 176                 if (i & 1)
 177                         glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
 178                 else
 179                         glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
 180                 glClear(GL_COLOR_BUFFER_BIT);
 181                 glXSwapBuffers(disp, winGL);
 182                 wait_sync(disp, winGL, 0, 60, 0, &ust, &msc, &sbc);
 183                 fprintf(stderr,
 184                         "wait returned ust: %llu, msc: %llu, sbc: %llu\n",
 185                         ust, msc, sbc);
 186                 sleep(1);
 187         }
 188
 189         XDestroyWindow(disp, winGL);
 190         glXDestroyContext(disp, context);
 191         XCloseDisplay(disp);
 192
 193         return 0;
 194 }