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egl_softpipe: Do not flush unlinked context. 

An unlinked context is destroyed after _eglMakeCurrent.  Flushing such
context would cause segfault.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
This commit is contained in:
Chia-I Wu 2009-08-20 19:35:28 +08:00 committed by Brian Paul
parent 408db29792
commit 1f871a4d15
1 changed files with 8 additions and 3 deletions
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11
src/gallium/winsys/egl_xlib/egl_xlib.c
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@ -424,14 +424,19 @@ xlib_eglMakeCurrent(_EGLDriver *drv, _EGLDisplay *dpy,
struct xlib_egl_context *context = lookup_context(ctx);
struct xlib_egl_surface *draw_surf = lookup_surface(draw);
struct xlib_egl_surface *read_surf = lookup_surface(read);
struct st_context *oldctx = st_get_current();
struct st_context *oldcontext = NULL;
_EGLContext *oldctx;
oldctx = _eglGetCurrentContext();
if (oldctx && _eglIsContextLinked(oldctx))
oldcontext = st_get_current();
if (!_eglMakeCurrent(drv, dpy, draw, read, ctx))
return EGL_FALSE;
/* Flush before switching context. Check client API? */
if (oldctx)
st_flush(oldctx, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL);
if (oldcontext)
st_flush(oldcontext, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL);
st_make_current((context ? context->Context : NULL),
(draw_surf ? draw_surf->Framebuffer : NULL),
(read_surf ? read_surf->Framebuffer : NULL));