forked from Mirrors/openclonk
95 lines
2.4 KiB
C++
95 lines
2.4 KiB
C++
/*
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* OpenClonk, http://www.openclonk.org
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*
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* Copyright (c) 1998-2000, Matthes Bender
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* Copyright (c) 2001-2009, RedWolf Design GmbH, http://www.clonk.de/
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* Copyright (c) 2011-2016, The OpenClonk Team and contributors
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*
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* Distributed under the terms of the ISC license; see accompanying file
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* "COPYING" for details.
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*
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* "Clonk" is a registered trademark of Matthes Bender, used with permission.
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* See accompanying file "TRADEMARK" for details.
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*
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* To redistribute this file separately, substitute the full license texts
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* for the above references.
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*/
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/* A structure for handling 256-color bitmap files */
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#include "C4Include.h"
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#include "graphics/Bitmap256.h"
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#include "lib/StdColors.h"
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void C4BMPInfo::Default()
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{
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InplaceReconstruct(this);
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}
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int C4BMPInfo::FileBitsOffset()
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{
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return Head.bfOffBits-sizeof(C4BMPInfo);
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}
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void C4BMPInfo::Set(int iWdt, int iHgt, int iBitDepth)
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{
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Default();
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// Set header
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Head.bfType=*((const WORD*)"BM");
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Head.bfSize=sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)+DWordAligned(iWdt)*iHgt;
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Head.bfOffBits=sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER);
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// Set bitmap info
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Info.biSize=sizeof(BITMAPINFOHEADER);
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Info.biWidth=iWdt;
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Info.biHeight=iHgt;
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Info.biPlanes=1;
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Info.biBitCount=iBitDepth;
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Info.biCompression=0;
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Info.biSizeImage=iWdt*iHgt;
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Info.biClrUsed=Info.biClrImportant=0;
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}
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bool C4BMP256Info::Valid()
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{
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if (Head.bfType != *((const WORD*)"BM") ) return false;
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if ((Info.biBitCount!=8) || (Info.biCompression!=0)) return false;
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return true;
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}
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int C4BMP256Info::FileBitsOffset()
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{
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return Head.bfOffBits-sizeof(C4BMP256Info);
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}
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void C4BMP256Info::Set(int iWdt, int iHgt, CStdPalette *Palette)
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{
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Default();
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// Set header
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Head.bfType=*((const WORD*)"BM");
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Head.bfSize=sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)+256*sizeof(RGBQUAD)+DWordAligned(iWdt)*iHgt;
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Head.bfOffBits=sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)+256*sizeof(RGBQUAD);
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// Set bitmap info
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Info.biSize=sizeof(BITMAPINFOHEADER);
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Info.biWidth=iWdt;
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Info.biHeight=iHgt;
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Info.biPlanes=1;
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Info.biBitCount=8;
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Info.biCompression=0;
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Info.biSizeImage=iWdt*iHgt;
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Info.biClrUsed=Info.biClrImportant=256;
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// Set palette
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for (int cnt=0; cnt<256; cnt++)
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{
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Colors[cnt].rgbRed = GetRedValue(Palette->Colors[cnt]);
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Colors[cnt].rgbGreen = GetGreenValue(Palette->Colors[cnt]);
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Colors[cnt].rgbBlue = GetBlueValue(Palette->Colors[cnt]);
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}
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}
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void C4BMP256Info::Default()
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{
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InplaceReconstruct(this);
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}
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