www.pudn.com > pcx_c.zip > PCXDISP.C

/*	PCXDISP.c   -  Load pictures into RAM and display them 
*/ 
 
 
#include "lib.h" 
#include "pcx.h" 
 
extern int pcx_md; 
 
void pcx_load_palette( pic ) 
PCXPIC *pic; 
{ 
	int p; 
 
	if ( pcx_md ) 
	{  /* this part NOT TESTED */ 
	   VGR_CPAL( pic->hdr.triple[0].red / 16, pic->hdr.triple[1].red / 32 ); 
	   return; 
	}; 
 
	for ( p=0; p < 16; p++ ) 
	   VGR_PALETTE( p, pic->hdr.triple[p].red   / 85, 
	                   pic->hdr.triple[p].green / 85, 
	                   pic->hdr.triple[p].blue  / 85 ); 
} 
 
 
void pcx_showpic( pic, hoffs, voffs, load_palette_flg ) 
int load_palette_flg, hoffs, voffs; 
PCXPIC *pic; 
{ 
	int plane, row, nrows, nplan, nbytes; 
 
	nrows = pic->hdr.y2 - pic->hdr.y1 +1; 
	nplan = pic->hdr.nplanes; 
	nbytes= pic->hdr.bpl; 
 
	nrows  = nrows  > VGR_VRES ? VGR_VRES : nrows; 
	nbytes = nbytes > VGR_NBPL ? VGR_NBPL : nbytes; 
 
	for ( plane = 0; plane < nplan; plane++ ) 
	{  VGR_PLANE(plane ? plane : -0x0f); 
	   for ( row = 0; row < nrows; row++ ) 
	      VGR_ROW( row, pic->rows[plane][row+voffs] + hoffs, nbytes ); 
	}; 
 
	if ( load_palette_flg ) 
	   pcx_load_palette( pic ); 
}