Set DepthMask to true before clearing depth buffer

When enableDepthWrite is false, Depth buffer is not cleared because DepthMask is false.
Make sure that DALi set DepthMask to true before clearing depth buffer.

Change-Id: Ia94826a9681355719604f774e3fb37994068e3c2
Signed-off-by: minho.sun <minho.sun@samsung.com>

diff --git a/dali/internal/render/common/render-algorithms.cpp b/dali/internal/render/common/render-algorithms.cpp
index 664eb6b..ec47b65 100644 (file)
--- a/dali/internal/render/common/render-algorithms.cpp
+++ b/dali/internal/render/common/render-algorithms.cpp
@@ -194,9 +194,6 @@ inline void SetupDepthBuffer( const RenderItem& item, Context& context, bool dep
     // The depth buffer must be enabled if either reading or writing.
     context.EnableDepthBuffer( true );
 
-    // Set up the depth mask based on our depth write setting.
-    context.DepthMask( enableDepthWrite );
-
     // Look-up the GL depth function from the Dali::DepthFunction enum, and set it.
     context.DepthFunc( DaliDepthToGLDepthTable[ item.mRenderer->GetDepthFunction() ] );
 
@@ -210,8 +207,12 @@ inline void SetupDepthBuffer( const RenderItem& item, Context& context, bool dep
       firstDepthBufferUse = false;
 
       // Note: The buffer will only be cleared if written to since a previous clear.
+      context.DepthMask( true );
       context.Clear( GL_DEPTH_BUFFER_BIT, Context::CHECK_CACHED_VALUES );
     }
+
+    // Set up the depth mask based on our depth write setting.
+    context.DepthMask( enableDepthWrite );
   }
   else
   {