X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=dali%2Finternal%2Frender%2Fcommon%2Frender-item.h;h=7dbd3fb0e56c27588f66d353cf21199f30045f51;hb=66e7d2f6bcca8a495e126bc9fbcc1640c74b3c01;hp=156272c4f1e6cefe6a71ee04dbf68b33f2bcb770;hpb=8e11ca6446b03f89bcc59bd1d023e71944b06bf9;p=platform%2Fcore%2Fuifw%2Fdali-core.git

diff --git a/dali/internal/render/common/render-item.h b/dali/internal/render/common/render-item.h
index 156272c..7dbd3fb 100644
--- a/dali/internal/render/common/render-item.h
+++ b/dali/internal/render/common/render-item.h
@@ -2,7 +2,7 @@
 #define DALI_INTERNAL_SCENE_GRAPH_RENDER_ITEM_H
 
 /*
- * Copyright (c) 2016 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2017 Samsung Electronics Co., Ltd.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -33,7 +33,6 @@ namespace Internal
 namespace Render
 {
 class Renderer;
-class RenderGeometry;
 }
 
 namespace SceneGraph
@@ -56,6 +55,21 @@ struct RenderItem
   ~RenderItem();
 
   /**
+   * @brief This method is an optimized calculation of a viewport-space AABB (Axis-Aligned-Bounding-Box).
+   *
+   * We use the model-view-matrix, but we do not use projection. Therefore we assume Z = 0.
+   * As the box is Axis-Aligned (in viewport space) rotations on Z axis are correctly delt with by expanding the box as necessary.
+   * Rotations on X & Y axis will resize the AABB, but it will not handle the projection error due to the new coordinates having non-zero Z values.
+   *
+   * Note: We pass in the viewport dimensions rather than allow the caller to modify the raw AABB in order to optimally generate the final result.
+   *
+   * @param[in]    viewportWidth     The width of the viewport to calculate for
+   * @param[in]    viewportHeight    The height of the viewport to calculate for
+   * @return                         The AABB coordinates in viewport-space (x, y, width, height)
+   */
+  ClippingBox CalculateViewportSpaceAABB( const int viewportWidth, const int viewportHeight ) const;
+
+  /**
    * Overriden delete operator.
    * Deletes the RenderItem from its global memory pool
    * @param[in] A pointer to the RenderItem to delete.
@@ -67,13 +81,9 @@ struct RenderItem
   Vector3           mSize;
   Render::Renderer* mRenderer;
   Node*             mNode;
-  const void*       mTextureSet;        //< Used only for sorting
-
-  mutable Render::Geometry* mBatchRenderGeometry;
-
+  const void*       mTextureSet;        //< Used for sorting only
   int               mDepthIndex;
   bool              mIsOpaque:1;
-  bool              mBatched:1;
 
 private: