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/*
$Id: aalib.c,v 1.2 2006-03-15 04:37:46 matju Exp $
GridFlow
Copyright (c) 2001,2002,2003 by Mathieu Bouchard
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
See file ../COPYING for further informations on licensing terms.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "../base/grid.h.fcs"
#define aa_hardwareparams aa_hardware_params
#include <aalib.h>
/* MINNOR is a typo in aalib.h, sorry */
typedef
#if AA_LIB_MINNOR == 2
int
#else
enum aa_attribute
#endif
AAAttr;
\class FormatAALib < Format
struct FormatAALib : Format {
aa_context *context;
aa_renderparams *rparams;
int autodraw; /* as for X11 */
bool raw_mode;
FormatAALib () : context(0), autodraw(1) {}
\decl void initialize (Symbol mode, Symbol target);
\decl void close ();
\decl void _0_hidecursor ();
\decl void _0_print (int y, int x, int a, Symbol text);
\decl void _0_draw ();
\decl void _0_autodraw (int autodraw);
\decl void _0_dump ();
\grin 0 int
};
GRID_INLET(FormatAALib,0) {
if (!context) RAISE("boo");
if (in->dim->n != 3)
RAISE("expecting 3 dimensions: rows,columns,channels");
switch (in->dim->get(2)) {
case 1: raw_mode = false; break;
case 2: raw_mode = true; break;
default:
RAISE("expecting 1 greyscale channel (got %d)",in->dim->get(2));
}
in->set_factor(in->dim->get(1)*in->dim->get(2));
} GRID_FLOW {
int f = in->factor();
if (raw_mode) {
int sx = min(f,aa_scrwidth(context));
int y = in->dex/f;
while (n) {
if (y>=aa_scrheight(context)) return;
for (int x=0; x<sx; x++) {
context->textbuffer[y*aa_scrwidth(context)+x]=data[x*2+0];
context->attrbuffer[y*aa_scrwidth(context)+x]=data[x*2+1];
}
y++;
n-=f;
data+=f;
}
} else {
int sx = min(f,context->imgwidth);
int y = in->dex/f;
while (n) {
if (y>=context->imgheight) return;
for (int x=0; x<sx; x++) aa_putpixel(context,x,y,data[x]);
y++;
n-=f;
data+=f;
}
}
} GRID_FINISH {
if (!raw_mode) {
aa_palette pal;
for (int i=0; i<256; i++) aa_setpalette(pal,i,i,i,i);
aa_renderpalette(context,pal,rparams,0,0,
aa_scrwidth(context),aa_scrheight(context));
}
if (autodraw==1) aa_flush(context);
} GRID_END
\def void close () {
if (context) {
aa_close(context);
context=0;
}
}
\def void _0_hidecursor () { aa_hidemouse(context); }
\def void _0_draw () { aa_flush(context); }
\def void _0_print (int y, int x, int a, Symbol text) {
aa_puts(context,x,y,(AAAttr)a,(char *)rb_sym_name(text));
if (autodraw==1) aa_flush(context);
}
\def void _0_autodraw (int autodraw) {
if (autodraw<0 || autodraw>1)
RAISE("autodraw=%d is out of range",autodraw);
this->autodraw = autodraw;
}
\def void _0_dump () {
int32 v[] = {aa_scrheight(context), aa_scrwidth(context), 2};
GridOutlet out(this,0,new Dim(3,v));
for (int y=0; y<aa_scrheight(context); y++) {
for (int x=0; x<aa_scrwidth(context); x++) {
STACK_ARRAY(int32,data,2);
data[0] = context->textbuffer[y*aa_scrwidth(context)+x];
data[1] = context->attrbuffer[y*aa_scrwidth(context)+x];
out.send(2,data);
}
}
}
/* !@#$ varargs missing here */
\def void initialize (Symbol mode, Symbol target) {
rb_call_super(argc,argv);
argc-=2; argv+=2;
char *argv2[argc];
for (int i=0; i<argc; i++)
argv2[i] = strdup(rb_str_ptr(rb_funcall(argv[i],SI(to_s),0)));
if (mode!=SYM(out)) RAISE("write-only, sorry");
aa_parseoptions(0,0,&argc,argv2);
for (int i=0; i<argc; i++) free(argv2[i]);
Ruby drivers = rb_ivar_get(rb_obj_class(rself),SI(@drivers));
Ruby driver_address = rb_hash_aref(drivers,target);
if (driver_address==Qnil)
RAISE("unknown aalib driver '%s'",rb_sym_name(target));
aa_driver *driver = FIX2PTR(aa_driver,driver_address);
context = aa_init(driver,&aa_defparams,0);
rparams = aa_getrenderparams();
if (!context) RAISE("opening aalib didn't work");
int32 v[]={context->imgheight,context->imgwidth,1};
gfpost("aalib image size: %s",(new Dim(3,v))->to_s());
}
\classinfo {
Ruby drivers = rb_ivar_set(rself,SI(@drivers),rb_hash_new());
const aa_driver *const *p = aa_drivers;
for (; *p; p++) {
rb_hash_aset(drivers,ID2SYM(rb_intern((*p)->shortname)), PTR2FIX(*p));
}
// IEVAL(rself,"GridFlow.post('aalib supports: %s', @drivers.keys.join(', '))");
IEVAL(rself,"install '#in:aalib',1,1;@flags=2;@comment='Ascii Art Library'");
}
\end class FormatAALib
void startup_aalib () {
\startall
}
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