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, *pos;
  49
  50         extensionsString = glXQueryExtensionsString(dpy, DefaultScreen(dpy));
  51
  52         pos = strstr(extensionsString, extension);
  53
  54         if (pos != NULL && (pos == extensionsString || pos[-1] == ' ') &&
  55             (pos[strlen(extension)] == ' ' || pos[strlen(extension)] == '\0'))
  56                 return 1;
  57
  58         return 0;
  59 }
  60
  61 extern char *optarg;
  62 extern int optind, opterr, optopt;
  63 static char optstr[] = "v";
  64
  65 static void usage(char *name)
  66 {
  67         printf("usage: %s\n", name);
  68         exit(-1);
  69 }
  70
  71 int main(int argc, char *argv[])
  72 {
  73         Display *disp;
  74         XVisualInfo *pvi;
  75         XSetWindowAttributes swa;
  76         int attrib[14];
  77         Window winGL;
  78         GLXContext context;
  79         int dummy;
  80         Atom wmDelete;
  81         int verbose = 0, width = 200, height = 200;
  82         int c, i = 1;
  83         int64_t ust, msc, sbc;
  84
  85         opterr = 0;
  86         while ((c = getopt(argc, argv, optstr)) != -1) {
  87                 switch (c) {
  88                 case 'v':
  89                         verbose = 1;
  90                         break;
  91                 default:
  92                         usage(argv[0]);
  93                         break;
  94                 }
  95         }
  96
  97         disp = XOpenDisplay(NULL);
  98         if (!disp) {
  99                 fprintf(stderr, "failed to open display\n");
 100                 return -1;
 101         }
 102
 103         if (!glXQueryExtension(disp, &dummy, &dummy)) {
 104                 fprintf(stderr, "glXQueryExtension failed\n");
 105                 return -1;
 106         }
 107
 108         if (!GLXExtensionSupported(disp, "GLX_OML_sync_control")) {
 109                 fprintf(stderr, "GLX_OML_sync_control not supported, exiting\n");
 110                 return -1;
 111         }
 112
 113         attrib[0] = GLX_RGBA;
 114         attrib[1] = 1;
 115         attrib[2] = GLX_RED_SIZE;
 116         attrib[3] = 1;
 117         attrib[4] = GLX_GREEN_SIZE;
 118         attrib[5] = 1;
 119         attrib[6] = GLX_BLUE_SIZE;
 120         attrib[7] = 1;
 121         attrib[8] = GLX_DOUBLEBUFFER;
 122         attrib[9] = 1;
 123         attrib[10] = None;
 124
 125         pvi = glXChooseVisual(disp, DefaultScreen(disp), attrib);
 126         if (!pvi) {
 127                 fprintf(stderr, "failed to choose visual, exiting\n");
 128                 return -1;
 129         }
 130
 131         context = glXCreateContext(disp, pvi, None, GL_TRUE);
 132         if (!context) {
 133                 fprintf(stderr, "failed to create glx context\n");
 134                 return -1;
 135         }
 136
 137         pvi->screen = DefaultScreen(disp);
 138
 139         swa.colormap = XCreateColormap(disp, RootWindow(disp, pvi->screen),
 140                                        pvi->visual, AllocNone);
 141         swa.border_pixel = 0;
 142         swa.event_mask = ExposureMask | KeyPressMask | ButtonPressMask |
 143                 StructureNotifyMask;
 144         winGL = XCreateWindow(disp, RootWindow(disp, pvi->screen),
 145                               0, 0,
 146                               width, height,
 147                               0, pvi->depth, InputOutput, pvi->visual,
 148                               CWBorderPixel | CWColormap | CWEventMask, &swa);
 149         if (!winGL) {
 150                 fprintf(stderr, "window creation failed\n");
 151                 return -1;
 152         }
 153         wmDelete = XInternAtom(disp, "WM_DELETE_WINDOW", True);
 154         XSetWMProtocols(disp, winGL, &wmDelete, 1);
 155
 156         XSetStandardProperties(disp, winGL, "msc test", "msc text",
 157                                None, NULL, 0, NULL);
 158
 159         XMapRaised(disp, winGL);
 160
 161         glXMakeCurrent(disp, winGL, context);
 162
 163         get_sync_values = (void *)glXGetProcAddress((unsigned char *)"glXGetSyncValuesOML");
 164         wait_sync = (void *)glXGetProcAddress((unsigned char *)"glXWaitForMscOML");
 165
 166         if (!get_sync_values || !wait_sync) {
 167                 fprintf(stderr, "failed to get sync values function\n");
 168                 return -1;
 169         }
 170
 171         while (i++) {
 172                 get_sync_values(disp, winGL, &ust, &msc, &sbc);
 173                 fprintf(stderr, "ust: %llu, msc: %llu, sbc: %llu\n", ust, msc,
 174                         sbc);
 175
 176                 /* Alternate colors to make tearing obvious */
 177                 if (i & 1)
 178                         glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
 179                 else
 180                         glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
 181                 glClear(GL_COLOR_BUFFER_BIT);
 182                 glXSwapBuffers(disp, winGL);
 183                 wait_sync(disp, winGL, 0, 60, 0, &ust, &msc, &sbc);
 184                 fprintf(stderr,
 185                         "wait returned ust: %llu, msc: %llu, sbc: %llu\n",
 186                         ust, msc, sbc);
 187                 sleep(1);
 188         }
 189
 190         XDestroyWindow(disp, winGL);
 191         glXDestroyContext(disp, context);
 192         XCloseDisplay(disp);
 193
 194         return 0;
 195 }