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glx: add LIBGL_ALWAYS_SOFTWARE 

this disables accelerated DRI and fallbacks to client-side software rendering.

compile-tested only.
This commit is contained in:
George Sapountzis 2008-07-07 18:34:17 +03:00
parent e6e4f25aa5
commit a36bf890e8
1 changed files with 9 additions and 2 deletions
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11
src/glx/x11/glxext.c
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@ -631,6 +631,9 @@ _X_HIDDEN __GLXdisplayPrivate *__glXInitialize(Display* dpy)
__GLXdisplayPrivate *dpyPriv; __GLXdisplayPrivate *dpyPriv;
XEDataObject dataObj; XEDataObject dataObj;
int major, minor; int major, minor;
#ifdef GLX_DIRECT_RENDERING
Bool glx_direct, glx_accel;
#endif
#if defined(USE_XTHREADS) #if defined(USE_XTHREADS)
{ {
@ -698,16 +701,20 @@ _X_HIDDEN __GLXdisplayPrivate *__glXInitialize(Display* dpy)
dpyPriv->serverGLXversion = 0x0; dpyPriv->serverGLXversion = 0x0;
#ifdef GLX_DIRECT_RENDERING #ifdef GLX_DIRECT_RENDERING
glx_direct = (getenv("LIBGL_ALWAYS_INDIRECT") == NULL);
glx_accel = (getenv("LIBGL_ALWAYS_SOFTWARE") == NULL);
/* /*
** Initialize the direct rendering per display data and functions. ** Initialize the direct rendering per display data and functions.
** Note: This _must_ be done before calling any other DRI routines ** Note: This _must_ be done before calling any other DRI routines
** (e.g., those called in AllocAndFetchScreenConfigs). ** (e.g., those called in AllocAndFetchScreenConfigs).
*/ */
if (getenv("LIBGL_ALWAYS_INDIRECT") == NULL) { if (glx_direct && glx_accel) {
dpyPriv->dri2Display = dri2CreateDisplay(dpy); dpyPriv->dri2Display = dri2CreateDisplay(dpy);
dpyPriv->driDisplay = driCreateDisplay(dpy); dpyPriv->driDisplay = driCreateDisplay(dpy);
dpyPriv->driswDisplay = driswCreateDisplay(dpy);
} }
if (glx_direct)
dpyPriv->driswDisplay = driswCreateDisplay(dpy);
#endif #endif
if (!AllocAndFetchScreenConfigs(dpy, dpyPriv)) { if (!AllocAndFetchScreenConfigs(dpy, dpyPriv)) {