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authorBrian Paul <brianp@vmware.com>2009-12-04 08:09:55 -0700
committerBrian Paul <brianp@vmware.com>2009-12-04 08:09:57 -0700
commitca7cd3ade0f27f8f1d9532ad6281659e2522f0cf (patch)
treef1338511a07b0eb27074f40c896b434393f94850 /progs/xdemos
parentfb83fa26c47a49db1673834fd5f013bbcacadf58 (diff)
progs/xdemos: fix some visual/fbconfig logic in glxinfo.c
The fbAttribSingle/Double arrays had wrong GLX_DOUBLEBUFFER values. We only need to use the glXChooseFBConfig() code when glXChooseVisual() fails (but I don't know when that would happen). Other recent commits errantly removed some code in this area too.
Diffstat (limited to 'progs/xdemos')
-rw-r--r--progs/xdemos/glxinfo.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/progs/xdemos/glxinfo.c b/progs/xdemos/glxinfo.c
index b182a3091d..23df82f6f9 100644
--- a/progs/xdemos/glxinfo.c
+++ b/progs/xdemos/glxinfo.c
@@ -401,6 +401,10 @@ print_screen_info(Display *dpy, int scrnum, Bool allowDirect, GLboolean limits)
root = RootWindow(dpy, scrnum);
+ /*
+ * Find a basic GLX visual. We'll then create a rendering context and
+ * query various info strings.
+ */
visinfo = glXChooseVisual(dpy, scrnum, attribSingle);
if (!visinfo)
visinfo = glXChooseVisual(dpy, scrnum, attribDouble);
@@ -409,24 +413,29 @@ print_screen_info(Display *dpy, int scrnum, Bool allowDirect, GLboolean limits)
ctx = glXCreateContext( dpy, visinfo, NULL, allowDirect );
#ifdef GLX_VERSION_1_3
- {
+ /* Try glXChooseFBConfig() if glXChooseVisual didn't work.
+ * XXX when would that happen?
+ */
+ if (!visinfo) {
int fbAttribSingle[] = {
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
- GLX_DOUBLEBUFFER, GL_TRUE,
+ GLX_DOUBLEBUFFER, GL_FALSE,
None };
int fbAttribDouble[] = {
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
+ GLX_DOUBLEBUFFER, GL_TRUE,
None };
GLXFBConfig *configs = NULL;
int nConfigs;
- if (!visinfo)
+ configs = glXChooseFBConfig(dpy, scrnum, fbAttribSingle, &nConfigs);
+ if (!configs)
configs = glXChooseFBConfig(dpy, scrnum, fbAttribDouble, &nConfigs);
if (configs) {