Engine directory for ticket #1

Engine/source/util/imposterCapture.h

@@ -0,0 +1,110 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#ifndef _IMPOSTERCAPTURE_H_
+#define _IMPOSTERCAPTURE_H_
+
+#ifndef _MATHTYPES_H_
+#include "math/mathTypes.h"
+#endif
+#ifndef _MPOINT3_H_
+#include "math/mPoint3.h"
+#endif
+#ifndef _MMATRIX_H_
+#include "math/mMatrix.h"
+#endif
+#ifndef _TVECTOR_H_
+#include "core/util/tVector.h"
+#endif
+#ifndef _TSRENDERDATA_H_
+#include "ts/tsRenderState.h"
+#endif
+#ifndef _GFXTEXTUREHANDLE_H_
+#include "gfx/gfxTextureHandle.h"
+#endif
+
+class GBitmap;
+class SceneRenderState;
+class TSShapeInstance;
+class GFXTextureTarget;
+class RenderPassManager;
+class RenderMeshMgr;
+
+
+class ImposterCapture
+{
+   
+protected:
+
+   S32 mDl;
+   S32 mDim;
+
+   /// The bounding radius of the shape used to size the billboard.
+   F32 mRadius;
+
+   /// 
+   Point3F mCenter;
+
+   GBitmap *mBlackBmp;
+   GBitmap *mWhiteBmp;
+
+   GFXTexHandle mBlackTex;
+   GFXTexHandle mWhiteTex;
+   GFXTexHandle mNormalTex;
+
+   SceneRenderState *mState;
+   TSShapeInstance *mShapeInstance;
+   TSRenderState mRData;
+
+   GFXTextureTarget *mRenderTarget;
+
+   RenderPassManager *mRenderPass;
+   RenderMeshMgr     *mMeshRenderBin;
+
+   void _colorAverageFilter(  U32 dimensions, const U8 *inBmpBits, U8 *outBmpBits );
+   void _renderToTexture( GFXTexHandle texHandle, GBitmap *outBitmap, const ColorI &color ); 
+
+   void _separateAlpha( GBitmap *imposterOut );
+
+   void _convertDXT5nm( GBitmap *imposterOut );
+
+public:
+
+   ImposterCapture();
+
+   ~ImposterCapture();
+
+   void begin( TSShapeInstance *shapeInst,
+               S32 dl, 
+               S32 dim,
+               F32 radius,
+               const Point3F &center );
+
+   void capture(  const MatrixF &rotMatrix, 
+                  GBitmap **imposterOut,
+                  GBitmap **normalMapOut );
+
+   void end();
+
+};
+
+#endif // _IMPOSTERCAPTURE_H_