cc65/src/sp65/convert.c

126 lines
5.0 KiB
C

/*****************************************************************************/
/* */
/* convert.c */
/* */
/* Main target conversion module for the sp65 file and bitmap utility */
/* */
/* */
/* */
/* (C) 2012, Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#include <stdlib.h>
/* sp65 */
#include "attr.h"
#include "convert.h"
#include "error.h"
#include "geosbitmap.h"
#include "geosicon.h"
#include "koala.h"
#include "lynxsprite.h"
#include "raw.h"
#include "vic2sprite.h"
/*****************************************************************************/
/* Data */
/*****************************************************************************/
/* Type of the entry in the converter table */
typedef struct ConverterMapEntry ConverterMapEntry;
struct ConverterMapEntry {
const char* Format;
StrBuf* (*ConvertFunc) (const Bitmap*, const Collection*);
};
/* Converter table, alphabetically sorted */
static const ConverterMapEntry ConverterMap[] = {
{ "geos-bitmap", GenGeosBitmap },
{ "geos-icon", GenGeosIcon },
{ "koala", GenKoala },
{ "lynx-sprite", GenLynxSprite },
{ "raw", GenRaw },
{ "vic2-sprite", GenVic2Sprite },
};
/*****************************************************************************/
/* Code */
/*****************************************************************************/
static int Compare (const void* Key, const void* MapEntry)
/* Compare function for bsearch */
{
return strcmp (Key, ((const ConverterMapEntry*) MapEntry)->Format);
}
StrBuf* ConvertTo (const Bitmap* B, const Collection* A)
/* Convert the bitmap B into some sort of other binary format. The output is
** stored in a string buffer (which is actually a dynamic char array) and
** returned. The actual output format is taken from the "format" attribute
** in the attribute collection A.
*/
{
const ConverterMapEntry* E;
/* Get the format to convert to */
const char* Format = NeedAttrVal (A, "format", "convert");
/* Search for the matching converter */
E = bsearch (Format,
ConverterMap,
sizeof (ConverterMap) / sizeof (ConverterMap[0]),
sizeof (ConverterMap[0]),
Compare);
if (E == 0) {
Error ("No such target format: '%s'", Format);
}
/* Do the conversion */
return E->ConvertFunc (B, A);
}
void ListConversionTargets (FILE* F)
/* Output a list of conversion targets */
{
unsigned I;
for (I = 0; I < sizeof (ConverterMap) / sizeof (ConverterMap[0]); ++I) {
fprintf (F, " %s\n", ConverterMap[I].Format);
}
}