1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #ifndef _BGFX_RASTER_BPIXELRASTER_HXX 25 #define _BGFX_RASTER_BPIXELRASTER_HXX 26 27 #include <algorithm> 28 #include <sal/types.h> 29 #include <basegfx/pixel/bpixel.hxx> 30 #include <rtl/memory.h> 31 #include <basegfx/basegfxdllapi.h> 32 33 ////////////////////////////////////////////////////////////////////////////// 34 // predeclarations 35 36 ////////////////////////////////////////////////////////////////////////////// 37 38 namespace basegfx 39 { 40 class BASEGFX_DLLPUBLIC BPixelRaster 41 { 42 private: 43 // do not allow copy constructor and assignment operator 44 BPixelRaster(const BPixelRaster&); 45 BPixelRaster& operator=(const BPixelRaster&); 46 47 protected: 48 sal_uInt32 mnWidth; 49 sal_uInt32 mnHeight; 50 sal_uInt32 mnCount; 51 BPixel* mpContent; 52 53 public: 54 // reset 55 void reset() 56 { 57 rtl_zeroMemory(mpContent, sizeof(BPixel) * mnCount); 58 } 59 60 // constructor/destructor 61 BPixelRaster(sal_uInt32 nWidth, sal_uInt32 nHeight) 62 : mnWidth(nWidth), 63 mnHeight(nHeight), 64 mnCount(nWidth * nHeight), 65 mpContent(new BPixel[mnCount]) 66 { 67 reset(); 68 } 69 70 ~BPixelRaster() 71 { 72 delete [] mpContent; 73 } 74 75 // coordinate calcs between X/Y and span 76 sal_uInt32 getIndexFromXY(sal_uInt32 nX, sal_uInt32 nY) const { return (nX + (nY * mnWidth)); } 77 sal_uInt32 getXFromIndex(sal_uInt32 nIndex) const { return (nIndex % mnWidth); } 78 sal_uInt32 getYFromIndex(sal_uInt32 nIndex) const { return (nIndex / mnWidth); } 79 80 // data access read 81 sal_uInt32 getWidth() const { return mnWidth; } 82 sal_uInt32 getHeight() const { return mnHeight; } 83 sal_uInt32 getCount() const { return mnCount; } 84 85 // data access read only 86 const BPixel& getBPixel(sal_uInt32 nIndex) const 87 { 88 #ifdef DBG_UTIL 89 if(nIndex >= mnCount) 90 { 91 OSL_ENSURE(false, "getBPixel: Access out of range (!)"); 92 return BPixel::getEmptyBPixel(); 93 } 94 #endif 95 return mpContent[nIndex]; 96 } 97 98 // data access read/write 99 BPixel& getBPixel(sal_uInt32 nIndex) 100 { 101 #ifdef DBG_UTIL 102 if(nIndex >= mnCount) 103 { 104 OSL_ENSURE(false, "getBPixel: Access out of range (!)"); 105 return mpContent[0L]; 106 } 107 #endif 108 return mpContent[nIndex]; 109 } 110 }; 111 } // end of namespace basegfx 112 113 #endif /* _BGFX_RASTER_BPIXELRASTER_HXX */ 114