+++ /dev/null
-/*
- * Copyright © 2007-2010 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- *
- * Authors:
- * Jesse Barnes <jesse.barnes@intel.com>
- *
- */
-
-/** @file omlsync.c
- * The program is simple: it paints a window alternating colors (red &
- * white) either as fast as possible or synchronized to vblank events
- *
- * If run normally, the program should display a window that exhibits
- * significant tearing between red and white colors (e.g. you might get
- * a "waterfall" effect of red and white horizontal bars).
- *
- * If run with the '-s b' option, the program should synchronize the
- * window color changes with the vertical blank period, resulting in a
- * window that looks orangish with a high frequency flicker (which may
- * be invisible). If the window is moved to another screen, this
- * property should be preserved. If the window spans two screens, it
- * shouldn't tear on whichever screen most of the window is on; the
- * portion on the other screen may show some tearing (like the
- * waterfall effect above).
- *
- * Other options include '-w <width>' and '-h <height>' to set the
- * window size.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <GL/gl.h>
-#include <GL/glu.h>
-#include <GL/glx.h>
-#include <GL/glxext.h>
-#include <X11/X.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-
-Bool (*glXGetSyncValuesOML)(Display *dpy, GLXDrawable drawable,
- int64_t *ust, int64_t *msc, int64_t *sbc);
-Bool (*glXGetMscRateOML)(Display *dpy, GLXDrawable drawable, int32_t *numerator,
- int32_t *denominator);
-int64_t (*glXSwapBuffersMscOML)(Display *dpy, GLXDrawable drawable,
- int64_t target_msc, int64_t divisor,
- int64_t remainder);
-Bool (*glXWaitForMscOML)(Display *dpy, GLXDrawable drawable, int64_t target_msc,
- int64_t divisor, int64_t remainder, int64_t *ust,
- int64_t *msc, int64_t *sbc);
-Bool (*glXWaitForSbcOML)(Display *dpy, GLXDrawable drawable, int64_t target_sbc,
- int64_t *ust, int64_t *msc, int64_t *sbc);
-int (*glXSwapInterval)(int interval);
-
-static int GLXExtensionSupported(Display *dpy, const char *extension)
-{
- const char *extensionsString, *pos;
-
- extensionsString = glXQueryExtensionsString(dpy, DefaultScreen(dpy));
-
- pos = strstr(extensionsString, extension);
-
- if (pos != NULL && (pos == extensionsString || pos[-1] == ' ') &&
- (pos[strlen(extension)] == ' ' || pos[strlen(extension)] == '\0'))
- return 1;
-
- return 0;
-}
-
-extern char *optarg;
-extern int optind, opterr, optopt;
-static char optstr[] = "w:h:vd:r:n:i:";
-
-static void usage(char *name)
-{
- printf("usage: %s [-w <width>] [-h <height>] ...\n", name);
- printf("\t-d<divisor> - divisor for OML swap\n");
- printf("\t-r<remainder> - remainder for OML swap\n");
- printf("\t-n<interval> - wait interval for OML WaitMSC\n");
- printf("\t-i<swap interval> - swap at most once every n frames\n");
- printf("\t-v: verbose (print count)\n");
- exit(-1);
-}
-
-int main(int argc, char *argv[])
-{
- Display *disp;
- XVisualInfo *pvi;
- XSetWindowAttributes swa;
- Window winGL;
- GLXContext context;
- int dummy;
- Atom wmDelete;
- int64_t ust, msc, sbc;
- int width = 500, height = 500, verbose = 0, divisor = 0, remainder = 0,
- wait_interval = 0, swap_interval = 1;
- int c, i = 1;
- int ret;
- int db_attribs[] = { GLX_RGBA,
- GLX_RED_SIZE, 1,
- GLX_GREEN_SIZE, 1,
- GLX_BLUE_SIZE, 1,
- GLX_DOUBLEBUFFER,
- GLX_DEPTH_SIZE, 1,
- None };
- XSizeHints sizehints;
-
- opterr = 0;
- while ((c = getopt(argc, argv, optstr)) != -1) {
- switch (c) {
- case 'w':
- width = atoi(optarg);
- break;
- case 'h':
- height = atoi(optarg);
- break;
- case 'v':
- verbose = 1;
- break;
- case 'd':
- divisor = atoi(optarg);
- break;
- case 'r':
- remainder = atoi(optarg);
- break;
- case 'n':
- wait_interval = atoi(optarg);
- break;
- case 'i':
- swap_interval = atoi(optarg);
- break;
- default:
- usage(argv[0]);
- break;
- }
- }
-
- disp = XOpenDisplay(NULL);
- if (!disp) {
- fprintf(stderr, "failed to open display\n");
- return -1;
- }
-
- if (!glXQueryExtension(disp, &dummy, &dummy)) {
- fprintf(stderr, "glXQueryExtension failed\n");
- return -1;
- }
-
- if (!GLXExtensionSupported(disp, "GLX_OML_sync_control")) {
- fprintf(stderr, "GLX_OML_sync_control not supported\n");
- return -1;
- }
-
- if (!GLXExtensionSupported(disp, "GLX_MESA_swap_control")) {
- fprintf(stderr, "GLX_MESA_swap_control not supported\n");
- return -1;
- }
-
- pvi = glXChooseVisual(disp, DefaultScreen(disp), db_attribs);
-
- if (!pvi) {
- fprintf(stderr, "failed to choose visual, exiting\n");
- return -1;
- }
-
- pvi->screen = DefaultScreen(disp);
-
- swa.colormap = XCreateColormap(disp, RootWindow(disp, pvi->screen),
- pvi->visual, AllocNone);
- swa.border_pixel = 0;
- swa.event_mask = ExposureMask | KeyPressMask | ButtonPressMask |
- StructureNotifyMask;
- winGL = XCreateWindow(disp, RootWindow(disp, pvi->screen),
- 0, 0,
- width, height,
- 0, pvi->depth, InputOutput, pvi->visual,
- CWBorderPixel | CWColormap | CWEventMask, &swa);
- if (!winGL) {
- fprintf(stderr, "window creation failed\n");
- return -1;
- }
- wmDelete = XInternAtom(disp, "WM_DELETE_WINDOW", True);
- XSetWMProtocols(disp, winGL, &wmDelete, 1);
-
- sizehints.x = 0;
- sizehints.y = 0;
- sizehints.width = width;
- sizehints.height = height;
- sizehints.flags = USSize | USPosition;
-
- XSetNormalHints(disp, winGL, &sizehints);
- XSetStandardProperties(disp, winGL, "glsync test", "glsync text",
- None, NULL, 0, &sizehints);
-
- context = glXCreateContext(disp, pvi, NULL, GL_TRUE);
- if (!context) {
- fprintf(stderr, "failed to create glx context\n");
- return -1;
- }
-
- XMapWindow(disp, winGL);
- ret = glXMakeCurrent(disp, winGL, context);
- if (!ret) {
- fprintf(stderr, "failed to make context current: %d\n", ret);
- }
-
- glXGetSyncValuesOML = (void *)glXGetProcAddress((unsigned char *)"glXGetSyncValuesOML");
- glXGetMscRateOML = (void *)glXGetProcAddress((unsigned char *)"glXGetMscRateOML");
- glXSwapBuffersMscOML = (void *)glXGetProcAddress((unsigned char *)"glXSwapBuffersMscOML");
- glXWaitForMscOML = (void *)glXGetProcAddress((unsigned char *)"glXWaitForMscOML");
- glXWaitForSbcOML = (void *)glXGetProcAddress((unsigned char *)"glXWaitForSbcOML");
- glXSwapInterval = (void *)glXGetProcAddress((unsigned char *)"glXSwapIntervalMESA");
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glXSwapInterval(swap_interval);
- fprintf(stderr, "set swap interval to %d\n", swap_interval);
-
- glXGetSyncValuesOML(disp, winGL, &ust, &msc, &sbc);
- while (i++) {
- /* Alternate colors to make tearing obvious */
- if (i & 1) {
- glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
- glColor3f(1.0f, 1.0f, 1.0f);
- } else {
- glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
- glColor3f(1.0f, 0.0f, 0.0f);
- }
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- glRectf(0, 0, width, height);
-
- if (!wait_interval)
- glXSwapBuffersMscOML(disp, winGL, 0, divisor,
- remainder);
- else {
- glXWaitForMscOML(disp, winGL, msc + wait_interval,
- divisor, remainder, &ust, &msc, &sbc);
- glXSwapBuffersMscOML(disp, winGL, 0, 0, 0);
- }
- }
-
- XDestroyWindow(disp, winGL);
- glXDestroyContext(disp, context);
- XCloseDisplay(disp);
-
- return 0;
-}
projects / mesa.git / blobdiff