commit 8fac894f9b8e4e2cb93061fdd25f3aecbfb3bbb7
author Tapani Pälli <tapani.palli@intel.com> Thu Jun 08 12:24:24 2017 +0300
committer Tapani Pälli <tapani.palli@intel.com> Fri Jun 09 07:39:22 2017 +0300
tree 47801fa4bcc687a5c2e09d2615b6997496d4525c
parent c2464271a04964121d21eb1508d9dc61ec2d8e71

egl: fix _eglQuerySurface in EGL_BUFFER_AGE_EXT case

Specification states that in case of error, value should not be
written, patch changes buffer age queries to return -1 in case of
error so that we can skip changing the value.

In addition, small change to droid_query_buffer_age to return 0
in case buffer does not have a back buffer available.

Fixes:
   dEQP-EGL.functional.negative_partial_update.not_postable_surface

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Chad Versace <chadversary@chromium.org>
Cc: mesa-stable@lists.freedesktop.org

src/egl/drivers/dri2/platform_android.c

diff --git a/src/egl/drivers/dri2/platform_android.c b/src/egl/drivers/dri2/platform_android.c
index 48ecb9f..4c97935 100644
--- a/src/egl/drivers/dri2/platform_android.c
+++ b/src/egl/drivers/dri2/platform_android.c
@@ -614,10 +614,10 @@
 
    if (update_buffers(dri2_surf) < 0) {
       _eglError(EGL_BAD_ALLOC, "droid_query_buffer_age");
-      return 0;
+      return -1;
    }
 
-   return dri2_surf->back->age;
+   return dri2_surf->back ? dri2_surf->back->age : 0;
 }
 
 static EGLBoolean

src/egl/drivers/dri2/platform_drm.c

diff --git a/src/egl/drivers/dri2/platform_drm.c b/src/egl/drivers/dri2/platform_drm.c
index 2f04589..36c89fc 100644
--- a/src/egl/drivers/dri2/platform_drm.c
+++ b/src/egl/drivers/dri2/platform_drm.c
@@ -464,7 +464,7 @@
 
    if (get_back_bo(dri2_surf) < 0) {
       _eglError(EGL_BAD_ALLOC, "dri2_query_buffer_age");
-      return 0;
+      return -1;
    }
 
    return dri2_surf->back->age;

src/egl/drivers/dri2/platform_wayland.c

diff --git a/src/egl/drivers/dri2/platform_wayland.c b/src/egl/drivers/dri2/platform_wayland.c
index e447aa6..15cc597 100644
--- a/src/egl/drivers/dri2/platform_wayland.c
+++ b/src/egl/drivers/dri2/platform_wayland.c
@@ -810,7 +810,7 @@
 
    if (get_back_bo(dri2_surf) < 0) {
       _eglError(EGL_BAD_ALLOC, "dri2_query_buffer_age");
-      return 0;
+      return -1;
    }
 
    return dri2_surf->back->age;

src/egl/main/eglsurface.c

diff --git a/src/egl/main/eglsurface.c b/src/egl/main/eglsurface.c
index e935c83..5b3e83e 100644
--- a/src/egl/main/eglsurface.c
+++ b/src/egl/main/eglsurface.c
@@ -409,7 +409,11 @@
          _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");
          return EGL_FALSE;
       }
-      *value = drv->API.QueryBufferAge(drv, dpy, surface);
+      EGLint result = drv->API.QueryBufferAge(drv, dpy, surface);
+      /* error happened */
+      if (result < 0)
+         return EGL_FALSE;
+      *value = result;
       break;
    default:
       _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");