egl/android: support for EGL_KHR_partial_update

[mesa.git] / src / egl / main / eglsurface.c

diff --git a/src/egl/main/eglsurface.c b/src/egl/main/eglsurface.c
index 5b3e83ee92c3df4554f01d8fe3f9757c4a69a2b3..8094912ba122683bf1a7bde3bfe67e68d8e7cc88 100644 (file)
--- a/src/egl/main/eglsurface.c
+++ b/src/egl/main/eglsurface.c
@@ -317,6 +317,8 @@ _eglInitSurface(_EGLSurface *surf, _EGLDisplay *dpy, EGLint type,
    surf->AspectRatio = EGL_UNKNOWN;
 
    surf->PostSubBufferSupportedNV = EGL_FALSE;
+   surf->SetDamageRegionCalled = EGL_FALSE;
+   surf->BufferAgeRead = EGL_FALSE;
 
    /* the default swap interval is 1 */
    _eglClampSwapInterval(surf, 1);
@@ -409,11 +411,18 @@ _eglQuerySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
          _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");
          return EGL_FALSE;
       }
+      _EGLContext *ctx = _eglGetCurrentContext();
       EGLint result = drv->API.QueryBufferAge(drv, dpy, surface);
       /* error happened */
       if (result < 0)
          return EGL_FALSE;
+      if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
+          ctx->DrawSurface != surface) {
+         _eglError(EGL_BAD_SURFACE, "eglQuerySurface");
+         return EGL_FALSE;
+      }
       *value = result;
+      surface->BufferAgeRead = EGL_TRUE;
       break;
    default:
       _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");