| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #ifndef _SV_OCTREE_HXX |
| #define _SV_OCTREE_HXX |
| |
| #include <vcl/salbtype.hxx> |
| #include <vcl/dllapi.h> |
| |
| // ----------- |
| // - Defines - |
| // ----------- |
| |
| #define OCTREE_BITS 5 |
| #define OCTREE_BITS_1 10 |
| |
| // -------------- |
| // - OctreeNode - |
| // -------------- |
| |
| typedef struct OctreeNode |
| { |
| sal_uLong nCount; |
| sal_uLong nRed; |
| sal_uLong nGreen; |
| sal_uLong nBlue; |
| OctreeNode* pChild[ 8 ]; |
| OctreeNode* pNext; |
| OctreeNode* pNextInCache; |
| sal_uInt16 nPalIndex; |
| sal_Bool bLeaf; |
| } NODE; |
| |
| typedef NODE* PNODE; |
| typedef PNODE* PPNODE; |
| |
| // ---------- |
| // - Octree - |
| // ---------- |
| |
| class ImpNodeCache; |
| class BitmapReadAccess; |
| |
| class VCL_PLUGIN_PUBLIC Octree |
| { |
| private: |
| |
| BitmapPalette aPal; |
| sal_uLong nMax; |
| sal_uLong nLeafCount; |
| sal_uLong nLevel; |
| PNODE pTree; |
| PNODE pReduce[ OCTREE_BITS + 1 ]; |
| BitmapColor* pColor; |
| ImpNodeCache* pNodeCache; |
| const BitmapReadAccess* pAcc; |
| sal_uInt16 nPalIndex; |
| |
| Octree() {}; |
| |
| void CreatePalette( PNODE pNode ); |
| void GetPalIndex( PNODE pNode ); |
| |
| SAL_DLLPRIVATE void ImplCreateOctree(); |
| SAL_DLLPRIVATE void ImplDeleteOctree( PPNODE ppNode ); |
| SAL_DLLPRIVATE void ImplAdd( PPNODE ppNode ); |
| SAL_DLLPRIVATE void ImplReduce(); |
| |
| public: |
| |
| Octree( const BitmapReadAccess& rReadAcc, sal_uLong nColors ); |
| Octree( sal_uLong nColors ); |
| ~Octree(); |
| |
| void AddColor( const BitmapColor& rColor ); |
| |
| inline const BitmapPalette& GetPalette(); |
| inline sal_uInt16 GetBestPaletteIndex( const BitmapColor& rColor ); |
| }; |
| |
| // ------------------------------------------------------------------------ |
| |
| inline const BitmapPalette& Octree::GetPalette() |
| { |
| aPal.SetEntryCount( (sal_uInt16) nLeafCount ); |
| nPalIndex = 0; |
| CreatePalette( pTree ); |
| return aPal; |
| } |
| |
| // ------------------------------------------------------------------------ |
| |
| inline sal_uInt16 Octree::GetBestPaletteIndex( const BitmapColor& rColor ) |
| { |
| pColor = &(BitmapColor&) rColor; |
| nPalIndex = 65535; |
| nLevel = 0L; |
| GetPalIndex( pTree ); |
| return nPalIndex; |
| } |
| |
| // ------------------- |
| // - InverseColorMap - |
| // ------------------- |
| |
| class VCL_PLUGIN_PUBLIC InverseColorMap |
| { |
| private: |
| |
| sal_uInt8* pBuffer; |
| sal_uInt8* pMap; |
| const sal_uLong nBits; |
| |
| //#if 0 // _SOLAR__PRIVATE |
| |
| SAL_DLLPRIVATE void ImplCreateBuffers( const sal_uLong nMax ); |
| |
| //#endif // __PRIVATE |
| |
| public: |
| |
| explicit InverseColorMap( const BitmapPalette& rPal ); |
| ~InverseColorMap(); |
| |
| inline sal_uInt16 GetBestPaletteIndex( const BitmapColor& rColor ); |
| }; |
| |
| // ------------------------------------------------------------------------ |
| |
| inline sal_uInt16 InverseColorMap::GetBestPaletteIndex( const BitmapColor& rColor ) |
| { |
| return pMap[ ( ( (sal_uLong) rColor.GetRed() >> nBits ) << OCTREE_BITS_1 ) | |
| ( ( (sal_uLong) rColor.GetGreen() >> nBits ) << OCTREE_BITS ) | |
| ( (sal_uLong) rColor.GetBlue() >> nBits ) ]; |
| } |
| |
| #endif // _SV_OCTREE_HXX |