# OgreTerrainLayerBlendMap.h

Go to the documentation of this file.

    00001 /*
    00002 -----------------------------------------------------------------------------
    00003 This source file is part of OGRE
    00004 (Object-oriented Graphics Rendering Engine)
    00005 For the latest info, see http://www.ogre3d.org/
    00006
    00007 Copyright (c) 2000-2009 Torus Knot Software Ltd
    00008
    00009 Permission is hereby granted, free of charge, to any person obtaining a copy
    00010 of this software and associated documentation files (the "Software"), to deal
    00011 in the Software without restriction, including without limitation the rights
    00012 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    00013 copies of the Software, and to permit persons to whom the Software is
    00014 furnished to do so, subject to the following conditions:
    00015
    00016 The above copyright notice and this permission notice shall be included in
    00017 all copies or substantial portions of the Software.
    00018
    00019 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    00020 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    00021 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    00022 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    00023 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    00024 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    00025 THE SOFTWARE.
    00026 -----------------------------------------------------------------------------
    00027 */
    00028
    00029 #ifndef __Ogre_TerrainLayerBlendMap_H__
    00030 #define __Ogre_TerrainLayerBlendMap_H__
    00031
    00032 #include "OgreTerrainPrerequisites.h"
    00033 #include "OgreCommon.h"
    00034 #include "OgreVector3.h"
    00035 #include "OgreDataStream.h"
    00036
    00037 namespace Ogre
    00038 {
    00039     class Image;
    00061     class _OgreTerrainExport TerrainLayerBlendMap : public TerrainAlloc
    00062     {
    00063     protected:
    00064         Terrain* mParent;
    00065         uint8 mLayerIdx;
    00066         uint8 mChannel; // RGBA
    00067         uint8 mChannelOffset; // in pixel format
    00068         Box mDirtyBox;
    00069         bool mDirty;
    00070         HardwarePixelBuffer* mBuffer;
    00071         float* mData;
    00072
    00073         void download();
    00074         void upload();
    00075
    00076     public:
    00083         TerrainLayerBlendMap(Terrain* parent, uint8 layerIndex, HardwarePixelBuffer* buf);
    00084         ~TerrainLayerBlendMap();
    00086         Terrain* getParent() const { return mParent; }
    00088         uint8 getLayerIndex() const { return mLayerIdx; }
    00089
    00098         void convertWorldToUVSpace(const Vector3& worldPos, Real *outX, Real* outY);
    00099
    00105         void convertUVToWorldSpace(Real x, Real y, Vector3* outWorldPos);
    00106
    00109         void convertUVToImageSpace(Real x, Real y, size_t* outX, size_t* outY);
    00112         void convertImageToUVSpace(size_t x, size_t y, Real* outX, Real* outY);
    00115         void convertImageToTerrainSpace(size_t x, size_t y, Real* outX, Real* outY);
    00118         void convertTerrainToImageSpace(Real x, Real y, size_t* outX, size_t* outY);
    00119
    00124         float getBlendValue(size_t x, size_t y);
    00125
    00130         void setBlendValue(size_t x, size_t y, float val);
    00131
    00138         float* getBlendPointer();
    00139
    00142         void dirty();
    00143
    00147         void dirtyRect(const Rect& rect);
    00148
    00157         void blit(const PixelBox &src, const Box &dstBox);
    00158
    00165         void blit(const PixelBox &src);
    00166
    00169         void loadImage(const Image& img);
    00170
    00175         void loadImage(DataStreamPtr& stream, const String& ext = StringUtil::BLANK);
    00176
    00179         void loadImage(const String& filename, const String& groupName);
    00180
    00185         void update();
    00186
    00187
    00188     };
    00189
    00190     typedef vector<TerrainLayerBlendMap*>::type TerrainLayerBlendMapList;
    00191
    00195 }
    00196
    00197
    00198
    00199 #endif

Copyright © 2008 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Wed Nov 3 2010 19:24:52