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authorJesse Barnes <jbarnes@virtuousgeek.org>2009-11-03 10:48:17 -0800
committerJesse Barnes <jbarnes@virtuousgeek.org>2010-01-08 12:37:43 -0500
commitf860aac0d8caff6623792c9da272af269e631ed9 (patch)
tree078b81baa68679c561bf05c820357ab3df3b656f /progs/xdemos
parentf35f666f81221aea0b2eda533573bcbd07d10d65 (diff)
xdemos/glsync: Make glsync test draw a rectangle
Doing simple buffer clears isn't enough to actually allocate render buffers, we need to do real drawing.
Diffstat (limited to 'progs/xdemos')
-rw-r--r--progs/xdemos/glsync.c83
1 files changed, 49 insertions, 34 deletions
diff --git a/progs/xdemos/glsync.c b/progs/xdemos/glsync.c
index e813c8770d5..0608f75534d 100644
--- a/progs/xdemos/glsync.c
+++ b/progs/xdemos/glsync.c
@@ -111,7 +111,6 @@ int main(int argc, char *argv[])
Display *disp;
XVisualInfo *pvi;
XSetWindowAttributes swa;
- int attrib[14];
GLint last_val = -1, count = 0;
Window winGL;
GLXContext context;
@@ -121,6 +120,19 @@ int main(int argc, char *argv[])
int width = 500, height = 500, verbose = 0,
countonly = 0, interval = 1;
int c, i = 1;
+ int attribs[] = { GLX_RGBA,
+ GLX_RED_SIZE, 1,
+ GLX_GREEN_SIZE, 1,
+ GLX_BLUE_SIZE, 1,
+ None };
+ 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) {
@@ -175,34 +187,17 @@ int main(int argc, char *argv[])
return -1;
}
- attrib[0] = GLX_RGBA;
- attrib[1] = 1;
- attrib[2] = GLX_RED_SIZE;
- attrib[3] = 1;
- attrib[4] = GLX_GREEN_SIZE;
- attrib[5] = 1;
- attrib[6] = GLX_BLUE_SIZE;
- attrib[7] = 1;
- if (waitforsync != buffer_swap)
- attrib[8] = None;
- else {
- attrib[8] = GLX_DOUBLEBUFFER;
- attrib[9] = 1;
- attrib[10] = None;
+ if (waitforsync != buffer_swap) {
+ pvi = glXChooseVisual(disp, DefaultScreen(disp), attribs);
+ } else {
+ pvi = glXChooseVisual(disp, DefaultScreen(disp), db_attribs);
}
- pvi = glXChooseVisual(disp, DefaultScreen(disp), attrib);
if (!pvi) {
fprintf(stderr, "failed to choose visual, exiting\n");
return -1;
}
- context = glXCreateContext(disp, pvi, None, GL_TRUE);
- if (!context) {
- fprintf(stderr, "failed to create glx context\n");
- return -1;
- }
-
pvi->screen = DefaultScreen(disp);
swa.colormap = XCreateColormap(disp, RootWindow(disp, pvi->screen),
@@ -222,11 +217,23 @@ int main(int argc, char *argv[])
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, NULL);
+ None, NULL, 0, &sizehints);
- XMapRaised(disp, winGL);
+ context = glXCreateContext(disp, pvi, NULL, GL_TRUE);
+ if (!context) {
+ fprintf(stderr, "failed to create glx context\n");
+ return -1;
+ }
+ XMapWindow(disp, winGL);
glXMakeCurrent(disp, winGL, context);
video_sync_get = glXGetProcAddress((unsigned char *)"glXGetVideoSyncSGI");
@@ -239,11 +246,26 @@ int main(int argc, char *argv[])
return -1;
}
- swap_interval(interval);
- fprintf(stderr, "set swap interval to %d\n", interval);
+ if (waitforsync == buffer_swap) {
+ swap_interval(interval);
+ fprintf(stderr, "set swap interval to %d\n", interval);
+ }
video_sync_get(&count);
count++;
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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);
+
/* Wait for vsync */
if (waitforsync == sgi_video_sync) {
if (verbose)
@@ -254,6 +276,7 @@ int main(int argc, char *argv[])
if (count == last_val)
fprintf(stderr, "error: count didn't change: %d\n", count);
last_val = count;
+ glFlush();
} else if (waitforsync == buffer_swap) {
glXSwapBuffers(disp, winGL);
}
@@ -269,14 +292,6 @@ int main(int argc, char *argv[])
video_sync_get(&count);
fprintf(stderr, "current count: %d\n", count);
}
-
- /* Alternate colors to make tearing obvious */
- if (i & 1)
- glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
- else
- glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
- glClear(GL_COLOR_BUFFER_BIT);
- glFlush();
}
XDestroyWindow(disp, winGL);