forked from KolibriOS/kolibrios
55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
#include "..\kosSyst.h"
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#include "pcx.h"
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int PCXFile::LoadPCXFile(Byte* filebuff, Dword filesize)
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{
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memcpy((Byte*)&Pcx_head,(Byte*)filebuff,sizeof(PCXHeader));
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int state=0;
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if (Pcx_head.bManufacturer==0x0a && Pcx_head.bVersion==0x05)
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{
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width=Pcx_head.dwWidth-Pcx_head.dwX+1;
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height=Pcx_head.dwHeight-Pcx_head.dwY+1;
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buffer=kos_GetMemory(width*height*3);
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Byte* pPal=filebuff+filesize-768;
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Byte* pImg=filebuff+128;
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Byte* cBuffer=(Byte*)buffer;
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if (Pcx_head.bNPlanes==1)
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{
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/* 8-bit decoding */
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Dword y,i;
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Byte cur_byte,counter;
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Dword cWidth;
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for(y=0;y<height;y++)
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{
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cWidth=width;
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while(cWidth!=0)
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{
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cur_byte=*(pImg); pImg++;
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counter=1;
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if (cur_byte>=192)
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{
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counter=(cur_byte & 0x3F);
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cur_byte=*(pImg); pImg++;
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}
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for(i=0;i<counter;i++)
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{
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*(cBuffer+0)=(pPal[cur_byte*3+0]);
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*(cBuffer+1)=(pPal[cur_byte*3+1]);
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*(cBuffer+2)=(pPal[cur_byte*3+2]);
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cBuffer=cBuffer+3;
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cWidth--;
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}
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}
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}
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} else if (Pcx_head.bNPlanes==3) {
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/* 24-bit decoding */
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state=1;
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}
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} else {
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state=1;
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}
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return state;
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} |