1 files changed, 11 insertions, 0 deletions
diff --git a/include/gpu/GrSurface.h b/include/gpu/GrSurface.h
index 3a7294b26e..f3771a74e2 100644
--- a/include/gpu/GrSurface.h
+++ b/include/gpu/GrSurface.h
@@ -63,9 +63,20 @@ public:
                               GrMipMapped, bool useNextPow2 = false);
 
 protected:
+    void setDoesNotSupportMipMaps() {
+        SkASSERT(this->asTexture());
+        fSurfaceFlags |= GrInternalSurfaceFlags::kDoesNotSupportMipMaps;
+    }
+    bool doesNotSupportMipMaps() const {
+        return fSurfaceFlags & GrInternalSurfaceFlags::kDoesNotSupportMipMaps;
+    }
+
     void setIsGLTextureRectangleOrExternal() {
         SkASSERT(this->asTexture());
         fSurfaceFlags |= GrInternalSurfaceFlags::kIsGLTextureRectangleOrExternal;
+        // If we are a GL rectangle or external texture, it also means that we do not support
+        // generating mip maps.
+        this->setDoesNotSupportMipMaps();
     }
     bool isGLTextureRectangleOrExternal() const {
         return fSurfaceFlags & GrInternalSurfaceFlags::kIsGLTextureRectangleOrExternal;