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62 lines
1.5 KiB
62 lines
1.5 KiB
#include "rfb.h"
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void rfbFillRect(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2,Pixel col)
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{
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int rowstride = s->paddedWidthInBytes, bpp = s->bitsPerPixel>>3;
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int i,j;
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char* colour=(char*)&col;
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if(!rfbEndianTest)
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colour += 4-bpp;
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for(j=y1;j<y2;j++)
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for(i=x1;i<x2;i++)
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memcpy(s->frameBuffer+j*rowstride+i*bpp,colour,bpp);
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rfbMarkRectAsModified(s,x1,y1,x2,y2);
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}
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#define SETPIXEL(x,y) \
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memcpy(s->frameBuffer+(y)*rowstride+(x)*bpp,colour,bpp)
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void rfbDrawPixel(rfbScreenInfoPtr s,int x,int y,Pixel col)
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{
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int rowstride = s->paddedWidthInBytes, bpp = s->bitsPerPixel>>3;
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char* colour=(char*)&col;
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if(!rfbEndianTest)
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colour += 4-bpp;
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SETPIXEL(x,y);
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rfbMarkRectAsModified(s,x,y,x+1,y+1);
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}
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void rfbDrawLine(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2,Pixel col)
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{
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int rowstride = s->paddedWidthInBytes, bpp = s->bitsPerPixel>>3;
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int i;
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char* colour=(char*)&col;
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if(!rfbEndianTest)
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colour += 4-bpp;
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#define SWAPPOINTS { i=x1; x1=x2; x2=i; i=y1; y1=y2; y2=i; }
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if(abs(x1-x2)<abs(y1-y2)) {
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if(y1>y2)
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SWAPPOINTS
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for(i=y1;i<=y2;i++)
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SETPIXEL(x1+(i-y1)*(x2-x1)/(y2-y1),i);
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/* TODO: Maybe make this more intelligently? */
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if(x2<x1) { i=x1; x1=x2; x2=i; }
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rfbMarkRectAsModified(s,x1,y1,x2+1,y2+1);
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} else {
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if(x1>x2)
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SWAPPOINTS
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else if(x1==x2) {
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rfbDrawPixel(s,x1,y1,col);
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return;
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}
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for(i=x1;i<=x2;i++)
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SETPIXEL(i,y1+(i-x1)*(y2-y1)/(x2-x1));
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if(y2<y1) { i=y1; y1=y2; y2=i; }
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rfbMarkRectAsModified(s,x1,y1,x2+1,y2+1);
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}
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}
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