A context or surface that is neither linked to a display nor current to
a thread should be destroyed.  Therefore, an unlinked context or surface
implies a pending delete automatically.

Signed-off-by: Chia-I Wu <olva...@gmail.com>
---
 src/egl/drivers/demo/demo.c                  |   12 ++----------
 src/egl/drivers/dri/egldri.c                 |   12 ++----------
 src/egl/drivers/glx/egl_glx.c                |    6 +-----
 src/egl/drivers/xdri/egl_xdri.c              |    5 +----
 src/egl/main/eglcontext.c                    |   14 +++++---------
 src/egl/main/eglcontext.h                    |    1 -
 src/egl/main/egldisplay.h                    |    5 +++++
 src/egl/main/eglsurface.c                    |    6 +-----
 src/egl/main/eglsurface.h                    |    1 -
 src/gallium/state_trackers/egl/egl_context.c |    4 +---
 src/gallium/state_trackers/egl/egl_surface.c |    4 +---
 src/gallium/winsys/egl_xlib/egl_xlib.c       |   10 ++--------
 src/mesa/drivers/dri/fb/fb_egl.c             |   12 ++----------
 13 files changed, 23 insertions(+), 69 deletions(-)

diff --git a/src/egl/drivers/demo/demo.c b/src/egl/drivers/demo/demo.c
index fa9efa5..f316974 100644
--- a/src/egl/drivers/demo/demo.c
+++ b/src/egl/drivers/demo/demo.c
@@ -236,12 +236,8 @@ demoDestroySurface(_EGLDriver *drv, EGLDisplay dpy, 
EGLSurface surface)
 {
    DemoSurface *fs = LookupDemoSurface(surface);
    _eglUnlinkSurface(&fs->Base);
-   if (fs->Base.IsBound) {
-      fs->Base.DeletePending = EGL_TRUE;
-   }
-   else {
+   if (!fs->Base.IsBound)
       free(fs);
-   }
    return EGL_TRUE;
 }
 
@@ -251,12 +247,8 @@ demoDestroyContext(_EGLDriver *drv, EGLDisplay dpy, 
EGLContext context)
 {
    DemoContext *fc = LookupDemoContext(context);
    _eglUnlinkContext(&fc->Base);
-   if (fc->Base.IsBound) {
-      fc->Base.DeletePending = EGL_TRUE;
-   }
-   else {
+   if (!fc->Base.IsBound)
       free(fc);
-   }
    return EGL_TRUE;
 }
 
diff --git a/src/egl/drivers/dri/egldri.c b/src/egl/drivers/dri/egldri.c
index df45fbf..3f9617a 100644
--- a/src/egl/drivers/dri/egldri.c
+++ b/src/egl/drivers/dri/egldri.c
@@ -296,12 +296,8 @@ _eglDRIDestroySurface(_EGLDriver *drv, EGLDisplay dpy, 
EGLSurface surface)
 
    fs->drawable.destroyDrawable(disp, fs->drawable.private);
 
-   if (fs->Base.IsBound) {
-      fs->Base.DeletePending = EGL_TRUE;
-   }
-   else {
+   if (!fs->Base.IsBound)
       free(fs);
-   }
    return EGL_TRUE;
 }
 
@@ -316,12 +312,8 @@ _eglDRIDestroyContext(_EGLDriver *drv, EGLDisplay dpy, 
EGLContext context)
 
    fc->driContext.destroyContext(disp, 0, fc->driContext.private);
 
-   if (fc->Base.IsBound) {
-      fc->Base.DeletePending = EGL_TRUE;
-   }
-   else {
+   if (!fc->Base.IsBound)
       free(fc);
-   }
    return EGL_TRUE;
 }
 
diff --git a/src/egl/drivers/glx/egl_glx.c b/src/egl/drivers/glx/egl_glx.c
index 661b313..207b1ea 100644
--- a/src/egl/drivers/glx/egl_glx.c
+++ b/src/egl/drivers/glx/egl_glx.c
@@ -739,12 +739,8 @@ GLX_eglDestroySurface(_EGLDriver *drv, EGLDisplay dpy, 
EGLSurface surface)
    return EGL_TRUE;
    if (surf) {
       _eglUnlinkSurface(surf);
-      if (surf->IsBound) {
-         surf->DeletePending = EGL_TRUE;
-      }
-      else {
+      if (!surf->IsBound)
          free(surf);
-      }
 
       return EGL_TRUE;
    }
diff --git a/src/egl/drivers/xdri/egl_xdri.c b/src/egl/drivers/xdri/egl_xdri.c
index 34d69de..e040efd 100644
--- a/src/egl/drivers/xdri/egl_xdri.c
+++ b/src/egl/drivers/xdri/egl_xdri.c
@@ -958,10 +958,7 @@ xdri_eglDestroySurface(_EGLDriver *drv, EGLDisplay dpy, 
EGLSurface surface)
    struct xdri_egl_surface *xdri_surf = lookup_surface(surface);
    if (xdri_surf) {
       _eglUnlinkSurface(&xdri_surf->Base);
-      if (xdri_surf->Base.IsBound) {
-         xdri_surf->Base.DeletePending = EGL_TRUE;
-      }
-      else {
+      if (!xdri_surf->Base.IsBound) {
          /*
          st_unreference_framebuffer(surf->Framebuffer);
          */
diff --git a/src/egl/main/eglcontext.c b/src/egl/main/eglcontext.c
index 4e49449..ed7e864 100644
--- a/src/egl/main/eglcontext.c
+++ b/src/egl/main/eglcontext.c
@@ -97,12 +97,8 @@ _eglDestroyContext(_EGLDriver *drv, EGLDisplay dpy, 
EGLContext ctx)
    _EGLContext *context = _eglLookupContext(ctx);
    if (context) {
       _eglUnlinkContext(context);
-      if (context->IsBound) {
-         context->DeletePending = EGL_TRUE;
-      }
-      else {
+      if (!context->IsBound)
          free(context);
-      }
       return EGL_TRUE;
    }
    else {
@@ -147,7 +143,7 @@ _eglQueryContext(_EGLDriver *drv, EGLDisplay dpy, 
EGLContext ctx,
 
 /**
  * Drivers will typically call this to do the error checking and
- * update the various IsBound and DeletePending flags.
+ * update the various flags.
  * Then, the driver will do its device-dependent Make-Current stuff.
  */
 EGLBoolean
@@ -212,7 +208,7 @@ _eglMakeCurrent(_EGLDriver *drv, EGLDisplay dpy, EGLSurface 
d,
     */
    if (oldDrawSurface != NULL) {
       oldDrawSurface->IsBound = EGL_FALSE;
-      if (oldDrawSurface->DeletePending) {
+      if (!_EGL_SURFACE_IS_LINKED(oldDrawSurface)) {
          /* make sure we don't try to rebind a deleted surface */
          if (draw == oldDrawSurface || draw == oldReadSurface) {
             draw = NULL;
@@ -223,7 +219,7 @@ _eglMakeCurrent(_EGLDriver *drv, EGLDisplay dpy, EGLSurface 
d,
    }
    if (oldReadSurface != NULL && oldReadSurface != oldDrawSurface) {
       oldReadSurface->IsBound = EGL_FALSE;
-      if (oldReadSurface->DeletePending) {
+      if (!_EGL_SURFACE_IS_LINKED(oldReadSurface)) {
          /* make sure we don't try to rebind a deleted surface */
          if (read == oldDrawSurface || read == oldReadSurface) {
             read = NULL;
@@ -234,7 +230,7 @@ _eglMakeCurrent(_EGLDriver *drv, EGLDisplay dpy, EGLSurface 
d,
    }
    if (oldContext != NULL) {
       oldContext->IsBound = EGL_FALSE;
-      if (oldContext->DeletePending) {
+      if (!_EGL_CONTEXT_IS_LINKED(oldContext)) {
          /* make sure we don't try to rebind a deleted context */
          if (ctx == oldContext) {
             ctx = NULL;
diff --git a/src/egl/main/eglcontext.h b/src/egl/main/eglcontext.h
index 8e20643..2fb28d3 100644
--- a/src/egl/main/eglcontext.h
+++ b/src/egl/main/eglcontext.h
@@ -21,7 +21,6 @@ struct _egl_context
    _EGLSurface *ReadSurface;
 
    EGLBoolean IsBound;
-   EGLBoolean DeletePending;
 
    EGLint ClientAPI; /**< EGL_OPENGL_ES_API, EGL_OPENGL_API, EGL_OPENVG_API */
    EGLint ClientVersion; /**< 1 = OpenGLES 1.x, 2 = OpenGLES 2.x */
diff --git a/src/egl/main/egldisplay.h b/src/egl/main/egldisplay.h
index d7a2e60..b3970a2 100644
--- a/src/egl/main/egldisplay.h
+++ b/src/egl/main/egldisplay.h
@@ -8,6 +8,11 @@
 #include "egltypedefs.h"
 
 
+#define _EGL_DISPLAY_IS_LINKED(dpy) ((dpy)->Handle)
+#define _EGL_CONTEXT_IS_LINKED(ctx) ((ctx)->Display)
+#define _EGL_SURFACE_IS_LINKED(surf) ((surf)->Display)
+
+
 struct _egl_display 
 {
    EGLNativeDisplayType NativeDisplay;
diff --git a/src/egl/main/eglsurface.c b/src/egl/main/eglsurface.c
index 8d4df9e..727c694 100644
--- a/src/egl/main/eglsurface.c
+++ b/src/egl/main/eglsurface.c
@@ -419,12 +419,8 @@ _eglDestroySurface(_EGLDriver *drv, EGLDisplay dpy, 
EGLSurface surface)
    _EGLSurface *surf = _eglLookupSurface(surface);
    if (surf) {
       _eglUnlinkSurface(surf);
-      if (surf->IsBound) {
-         surf->DeletePending = EGL_TRUE;
-      }
-      else {
+      if (!surf->IsBound)
          free(surf);
-      }
       return EGL_TRUE;
    }
    else {
diff --git a/src/egl/main/eglsurface.h b/src/egl/main/eglsurface.h
index f6874e6..f9413eb 100644
--- a/src/egl/main/eglsurface.h
+++ b/src/egl/main/eglsurface.h
@@ -19,7 +19,6 @@ struct _egl_surface
 
    /* May need reference counting here */
    EGLBoolean IsBound;
-   EGLBoolean DeletePending;
    EGLBoolean BoundToTexture;
 
    EGLint Type; /* one of EGL_WINDOW_BIT, EGL_PIXMAP_BIT or EGL_PBUFFER_BIT */
diff --git a/src/gallium/state_trackers/egl/egl_context.c 
b/src/gallium/state_trackers/egl/egl_context.c
index 7a74cf4..a88b6bc 100644
--- a/src/gallium/state_trackers/egl/egl_context.c
+++ b/src/gallium/state_trackers/egl/egl_context.c
@@ -148,9 +148,7 @@ drm_destroy_context(_EGLDriver *drv, EGLDisplay dpy, 
EGLContext context)
 {
        struct drm_context *c = lookup_drm_context(context);
        _eglUnlinkContext(&c->base);
-       if (c->base.IsBound) {
-               c->base.DeletePending = EGL_TRUE;
-       } else {
+       if (!c->base.IsBound) {
                st_destroy_context(c->st);
                c->pipe->destroy(c->pipe);
                free(c);
diff --git a/src/gallium/state_trackers/egl/egl_surface.c 
b/src/gallium/state_trackers/egl/egl_surface.c
index ae2e24b..27fe3c6 100644
--- a/src/gallium/state_trackers/egl/egl_surface.c
+++ b/src/gallium/state_trackers/egl/egl_surface.c
@@ -365,9 +365,7 @@ drm_destroy_surface(_EGLDriver *drv, EGLDisplay dpy, 
EGLSurface surface)
 {
        struct drm_surface *surf = lookup_drm_surface(surface);
        _eglUnlinkSurface(&surf->base);
-       if (surf->base.IsBound) {
-               surf->base.DeletePending = EGL_TRUE;
-       } else {
+       if (!surf->base.IsBound) {
                if (surf->screen)
                        drm_takedown_shown_screen(drv, surf->screen);
                st_unreference_framebuffer(surf->stfb);
diff --git a/src/gallium/winsys/egl_xlib/egl_xlib.c 
b/src/gallium/winsys/egl_xlib/egl_xlib.c
index 9914dff..e1ddcae 100644
--- a/src/gallium/winsys/egl_xlib/egl_xlib.c
+++ b/src/gallium/winsys/egl_xlib/egl_xlib.c
@@ -382,10 +382,7 @@ xlib_eglDestroyContext(_EGLDriver *drv, EGLDisplay dpy, 
EGLContext ctx)
    struct xlib_egl_context *context = lookup_context(ctx);
    if (context) {
       _eglUnlinkContext(&context->Base);
-      if (context->Base.IsBound) {
-         context->Base.DeletePending = EGL_TRUE;
-      }
-      else {
+      if (!context->Base.IsBound) {
          /* API-dependent clean-up */
          switch (context->Base.ClientAPI) {
          case EGL_OPENGL_ES_API:
@@ -536,10 +533,7 @@ xlib_eglDestroySurface(_EGLDriver *drv, EGLDisplay dpy, 
EGLSurface surface)
    struct xlib_egl_surface *surf = lookup_surface(surface);
    if (surf) {
       _eglUnlinkSurface(&surf->Base);
-      if (surf->Base.IsBound) {
-         surf->Base.DeletePending = EGL_TRUE;
-      }
-      else {
+      if (!surf->Base.IsBound) {
          XFreeGC(surf->Dpy, surf->Gc);
          st_unreference_framebuffer(surf->Framebuffer);
          free(surf);
diff --git a/src/mesa/drivers/dri/fb/fb_egl.c b/src/mesa/drivers/dri/fb/fb_egl.c
index c367741..dee67fe 100644
--- a/src/mesa/drivers/dri/fb/fb_egl.c
+++ b/src/mesa/drivers/dri/fb/fb_egl.c
@@ -605,12 +605,8 @@ fbDestroySurface(_EGLDriver *drv, EGLDisplay dpy, 
EGLSurface surface)
 {
    fbSurface *fs = Lookup_fbSurface(surface);
    _eglUnlinkSurface(&fs->Base);
-   if (fs->Base.IsBound) {
-      fs->Base.DeletePending = EGL_TRUE;
-   }
-   else {
+   if (!fs->Base.IsBound)
       free(fs);
-   }
    return EGL_TRUE;
 }
 
@@ -620,12 +616,8 @@ fbDestroyContext(_EGLDriver *drv, EGLDisplay dpy, 
EGLContext context)
 {
    fbContext *fc = Lookup_fbContext(context);
    _eglUnlinkContext(&fc->Base);
-   if (fc->Base.IsBound) {
-      fc->Base.DeletePending = EGL_TRUE;
-   }
-   else {
+   if (!fc->Base.IsBound)
       free(fc);
-   }
    return EGL_TRUE;
 }
 
-- 
1.6.2.4


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