From f5e757ea60d9abb848d98af01e1986be3e35e236 Mon Sep 17 00:00:00 2001
From: Cooper Yuan <cooperyuan@gmail.com>
Date: Sun, 14 Aug 2011 15:14:17 +0800
Subject: [PATCH] Destroy context in dri2/glx driver when apps call
 eglDestroyContext

---
 src/egl/drivers/dri2/egl_dri2.c | 21 +++++++++++++++++++--
 src/egl/drivers/glx/egl_glx.c   | 19 +++++++++++++++++++
 2 files changed, 38 insertions(+), 2 deletions(-)

diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index 9a37ea4..f09ae14 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -726,6 +726,23 @@ dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
 }
 
 /**
+ * Called via eglDestroyContext(), drv->API.DestroyContext().
+ */
+static EGLBoolean
+dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
+{
+   struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+
+   if (_eglPutContext(ctx)) {
+      dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
+      free(dri2_ctx);
+   }
+
+   return EGL_TRUE;
+}
+
+/**
  * Called via eglMakeCurrent(), drv->API.MakeCurrent().
  */
 static EGLBoolean
@@ -765,9 +782,8 @@ dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
          drv->API.DestroySurface(drv, disp, old_dsurf);
       if (old_rsurf)
          drv->API.DestroySurface(drv, disp, old_rsurf);
-      /* no destroy? */
       if (old_ctx)
-         _eglPutContext(old_ctx);
+         drv->API.DestroyContext(drv, disp, old_ctx);
 
       return EGL_TRUE;
    } else {
@@ -1348,6 +1364,7 @@ _EGL_MAIN(const char *args)
    dri2_drv->base.API.Initialize = dri2_initialize;
    dri2_drv->base.API.Terminate = dri2_terminate;
    dri2_drv->base.API.CreateContext = dri2_create_context;
+   dri2_drv->base.API.DestroyContext = dri2_destroy_context;
    dri2_drv->base.API.MakeCurrent = dri2_make_current;
    dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
    dri2_drv->base.API.WaitClient = dri2_wait_client;
diff --git a/src/egl/drivers/glx/egl_glx.c b/src/egl/drivers/glx/egl_glx.c
index 7cf8f4d..042936f 100644
--- a/src/egl/drivers/glx/egl_glx.c
+++ b/src/egl/drivers/glx/egl_glx.c
@@ -713,6 +713,24 @@ GLX_eglCreateContext(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
    return &GLX_ctx->Base;
 }
 
+/**
+ * Called via eglDestroyContext(), drv->API.DestroyContext().
+ */
+static EGLBoolean
+GLX_eglDestroyContext(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
+{
+   struct GLX_egl_driver *GLX_drv = GLX_egl_driver(drv);
+   struct GLX_egl_context *GLX_ctx = GLX_egl_context(ctx);
+
+   if (_eglPutContext(ctx)) {
+      assert(GLX_ctx);
+      GLX_drv->glXDestroyContext(disp, ctx);
+
+      free(GLX_ctx);
+   }
+
+   return EGL_TRUE;
+}
 
 /**
  * Destroy a surface.  The display is allowed to be uninitialized.
@@ -1142,6 +1160,7 @@ _EGL_MAIN(const char *args)
    GLX_drv->Base.API.Initialize = GLX_eglInitialize;
    GLX_drv->Base.API.Terminate = GLX_eglTerminate;
    GLX_drv->Base.API.CreateContext = GLX_eglCreateContext;
+   GLX_drv->Base.API.DestroyContext = GLX_eglDestroyContext;
    GLX_drv->Base.API.MakeCurrent = GLX_eglMakeCurrent;
    GLX_drv->Base.API.CreateWindowSurface = GLX_eglCreateWindowSurface;
    GLX_drv->Base.API.CreatePixmapSurface = GLX_eglCreatePixmapSurface;
-- 
2.7.4