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Amiga Format CD 22
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Amiga Format AFCD22 (Jan 1998, Issue 106).iso
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-in_the_mag-
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converters
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graphics
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netpbm
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hpcdtoppm.0.6
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src
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output.c
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C/C++ Source or Header
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1997-11-16
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196 lines
/* hpcdtoppm (Hadmut's pcdtoppm) v0.6
* Copyright (c) 1992, 1993, 1994 by Hadmut Danisch (danisch@ira.uka.de).
* Permission to use and distribute this software and its
* documentation for noncommercial use and without fee is hereby granted,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation. It is not allowed to sell this software in
* any way. This software is not public domain.
*/
#include "hpcdtoppm.h"
static void flip_corr(dim w,dim h,uBYTE **ptr,sdim *ystep,sdim *xstep)
{if(flvert)
{ (*ptr) += (h-1)* (*ystep);
(*ystep) = -(*ystep);
}
if(flhori)
{(*ptr) += (w-1)* (*xstep);
(*xstep) = -(*xstep);
}
}
static void call_1plane(OUT1PL proc, FILE *fout,
dim w, dim h,uBYTE * ptr,
sdim zeil, sdim pix)
{
flip_corr(w,h,&ptr,&zeil,&pix);
(*proc)(fout,w,h,ptr,zeil,pix);
}
static void do_1plane(OUT1PL proc, FILE *fout,
dim w,dim h,implane *g,enum TURNS t)
{
switch(t)
{case T_NONE: call_1plane(proc,fout,w,h,g->im,g->mwidth,1);
break;
case T_RIGHT:call_1plane(proc,fout,h,w,g->im + g->mwidth * ( g->iheight - 1) , 1 , -(g->mwidth));
break;
case T_LEFT: call_1plane(proc,fout,h,w,g->im + g->iwidth - 1 , -1 , (g->mwidth));
break;
case T_HEAD: call_1plane(proc,fout,w,h,g->im + g->iwidth - 1 + g->mwidth * ( g->iheight - 1) , -(g->mwidth) , -1);
break;
default:error(E_INTERN);
}
}
static void call_3plane(OUT3PL proc, FILE *fout, dim w,dim h,
uBYTE *rptr,sdim rzeil,sdim rpix,
uBYTE *gptr,sdim gzeil,sdim gpix,
uBYTE *bptr,sdim bzeil,sdim bpix)
{
flip_corr(w,h,&rptr,&rzeil,&rpix);
flip_corr(w,h,&gptr,&gzeil,&gpix);
flip_corr(w,h,&bptr,&bzeil,&bpix);
(*proc)(fout,w,h,rptr,rzeil,rpix,gptr,gzeil,gpix,bptr,bzeil,bpix );
}
static void do_3plane(OUT3PL proc,FILE *fout,dim w,dim h,
implane *r,implane *g,implane *b,
enum TURNS t)
{
switch(t)
{case T_NONE: call_3plane(proc,fout,w,h,r->im,r->mwidth,1,
g->im,g->mwidth,1,
b->im,b->mwidth,1);
break;
case T_RIGHT:call_3plane(proc,fout,h,w,r->im + r->mwidth * ( r->iheight - 1) , 1 , -(r->mwidth),
g->im + g->mwidth * ( g->iheight - 1) , 1 , -(g->mwidth),
b->im + b->mwidth * ( b->iheight - 1) , 1 , -(b->mwidth));
break;
case T_LEFT: call_3plane(proc,fout,h,w,r->im + r->iwidth - 1 , -1 , (r->mwidth),
g->im + g->iwidth - 1 , -1 , (g->mwidth),
b->im + b->iwidth - 1 , -1 , (b->mwidth));
break;
case T_HEAD: call_3plane(proc,fout,w,h,r->im + r->iwidth - 1 + r->mwidth * ( r->iheight - 1) , -(r->mwidth) , -1,
g->im + g->iwidth - 1 + g->mwidth * ( g->iheight - 1) , -(g->mwidth) , -1,
b->im + b->iwidth - 1 + b->mwidth * ( b->iheight - 1) , -(b->mwidth) , -1);
break;
default:error(E_INTERN);
}
}
void writepicture(FILE *fout, sizeinfo *si,
implane *r,implane *g,implane *b,
enum TURNS t)
{dim w,h;
w=si->imhlen;
h=si->imvlen;
melde("writepicture\n");
if((!r) || (r->iwidth != w ) || (r->iheight != h) || (!r->im)) error(E_INTERN);
if(!monochrome)
{
if((!g) || (g->iwidth != w ) || (g->iheight != h) || (!g->im)) error(E_INTERN);
if((!b) || (b->iwidth != w ) || (b->iheight != h) || (!b->im)) error(E_INTERN);
}
switch(outfor)
{case O_YCC:
case O_PPM: do_3plane(write_ppm ,fout,w,h,r,g,b,t); break;
case O_PS: do_3plane(write_psrgb ,fout,w,h,r,g,b,t); break;
case O_EPS: do_3plane(write_epsrgb ,fout,w,h,r,g,b,t); break;
case O_PGM: do_1plane(write_pgm ,fout,w,h,r,t); break;
case O_PSG: do_1plane(write_psgrey ,fout,w,h,r,t); break;
case O_EPSG: do_1plane(write_epsgrey ,fout,w,h,r,t); break;
case O_PSD: do_1plane(write_psdith ,fout,w,h,r,t); break;
case O_EPSD: do_1plane(write_epsdith ,fout,w,h,r,t); break;
case O_JPEG: do_3plane(write_jpeg ,fout,w,h,r,g,b,t); break;
default: error(E_INTERN);
}
}
struct ph1
{char id1[8];
uBYTE ww1[14];
char id2[20];
char id3[4*16+4];
short ww2;
char id4[20];
uBYTE ww3[2*16+1];
char id5[4*16];
uBYTE idx[11*16];
} ;
void druckeid(void)
{struct ph1 *d;
char ss[100];
d=(struct ph1 *)sbuffer;
#define dr(feld,kennung) \
strncpy(ss,feld,sizeof(feld));\
ss[sizeof(feld)]=0;\
fprintf(stderr,"%s: %s \n",kennung,ss);
dr(d->id1,"Id1")
dr(d->id2,"Id2")
dr(d->id3,"Id3")
dr(d->id4,"Id4")
dr(d->id5,"Id5")
#undef dr
}