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Allow releasing the GLXContext/Drawable with glXMakeCurrent.

---
commit d942ed4e853e08d2298f3e11e9a952c1d952bff5
tree f0a934efd8a8ff48e2d96f0d6fc7d70bef106bfe
parent 93619e6be184f8de08759d347825ee0d678a6f9c
author Andrzej Zaborowski <andrew.zaborowski@intel.com> Tue, 16 Jun 2009 22:22:05 +0200
committer Andrzej Zaborowski <andrew.zaborowski@intel.com> Tue, 16 Jun 2009 22:22:05 +0200

 target-i386/opengl_exec.c |   31 ++++++++++++++++---------------
 1 files changed, 16 insertions(+), 15 deletions(-)

Index: qemu/target-i386/opengl_exec.c
===================================================================
--- qemu.orig/target-i386/opengl_exec.c	2010-05-10 18:46:43.175394992 -0400
+++ qemu/target-i386/opengl_exec.c	2010-05-10 18:46:43.218419933 -0400
@@ -1600,10 +1600,9 @@ int do_function_call(int func_number, ar
                 fprintf(stderr, "client_drawable=%p fake_ctx=%d\n",
                         (void *) client_drawable, fake_ctxt);
 
-            if (client_drawable == 0 && fake_ctxt == 0) {
+            if (client_drawable == 0 && fake_ctxt == 0)
                 ret_int = glXMakeCurrent(dpy, 0, NULL);
-                process->current_state = &process->default_state;
-            } else if ((drawable = (GLXDrawable)
+            else if ((drawable = (GLXDrawable)
                                     get_association_fakepbuffer_pbuffer(
                                             process, client_drawable))) {
                 GLXContext ctxt = get_association_fakecontext_glxcontext(
@@ -1651,19 +1650,21 @@ int do_function_call(int func_number, ar
             }
 
             if (ret_int) {
-                for (i = 0; i < process->nb_states; i ++) {
-                    if (process->glstates[i]->fake_ctxt == fake_ctxt) {
-                        /* HACK !!! REMOVE */
-                        process->current_state = process->glstates[i];
-                        process->current_state->drawable = drawable;
-                        break;
-                    }
-                }
+                if (fake_ctxt) {
+                    for (i = 0; i < process->nb_states; i ++)
+                        if (process->glstates[i]->fake_ctxt == fake_ctxt) {
+                            /* HACK !!! REMOVE */
+                            process->current_state = process->glstates[i];
+                            process->current_state->drawable = drawable;
+                            break;
+                        }
 
-                if (i == process->nb_states) {
-                    fprintf(stderr, "error remembering the new context\n");
-                    exit(-1);
-                }
+                    if (i == process->nb_states) {
+                        fprintf(stderr, "error remembering the new context\n");
+                        exit(-1);
+                    }
+                } else
+                    process->current_state = &process->default_state;
             }
             break;
         }