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/*
* raster-cache-text-std.h - Raster line cache.
*
* Written by
* Andreas Boose <viceteam@t-online.de>
* Ettore Perazzoli <ettore@comm2000.it>
*
* This file is part of VICE, the Versatile Commodore Emulator.
* See README for copyright notice.
*
* 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.
*
* 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.
*
*/
#ifndef _RASTER_CACHE_TEXT_STD_H
#define _RASTER_CACHE_TEXT_STD_H
#include "types.h"
inline static int raster_cache_data_fill_text(BYTE *dest,
const BYTE *src,
BYTE *char_mem,
const int bytes_per_char,
const unsigned int length,
const int l,
unsigned int *xs,
unsigned int *xe,
int no_check)
{
#define GET_CHAR_DATA(c, l) char_mem[((c) * bytes_per_char) + (l)]
if (no_check) {
unsigned int i;
*xs = 0;
*xe = length - 1;
for (i = 0; i < length; i++, src++)
dest[i] = GET_CHAR_DATA(src[0], l);
return 1;
} else {
BYTE b;
unsigned int i;
for (i = 0;
i < length && dest[i] == GET_CHAR_DATA(src[0], l);
i++, src++)
/* do nothing */ ;
if (i < length) {
*xs = *xe = i;
for (; i < length; i++, src++) {
if (dest[i] != (b = GET_CHAR_DATA(src[0], l))) {
dest[i] = b;
*xe = i;
}
}
return 1;
} else {
return 0;
}
}
#undef GET_CHAR_DATA
}
#endif
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