72 lines
2.3 KiB
C
72 lines
2.3 KiB
C
|
/* -*- Mode: C; c-basic-offset: 3 -*-
|
||
|
|
*
|
||
|
|
* datafile.h - Macros for using raw data files included via objcopy.
|
||
|
|
*
|
||
|
|
* This file is part of Metalkit, a simple collection of modules for
|
||
|
|
* writing software that runs on the bare metal. Get the latest code
|
||
|
|
* at http://svn.navi.cx/misc/trunk/metalkit/
|
||
|
|
*
|
||
|
|
* Copyright (c) 2008-2009 Micah Dowty
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person
|
||
|
|
* obtaining a copy of this software and associated documentation
|
||
|
|
* files (the "Software"), to deal in the Software without
|
||
|
|
* restriction, including without limitation the rights to use,
|
||
|
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
|
* copies of the Software, and to permit persons to whom the
|
||
|
|
* Software is furnished to do so, subject to the following
|
||
|
|
* conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be
|
||
|
|
* included in all copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||
|
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||
|
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||
|
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __DATAFILE_H__
|
||
|
|
#define __DATAFILE_H__
|
||
|
|
|
||
|
|
#include "types.h"
|
||
|
|
#include "puff.h"
|
||
|
|
|
||
|
|
typedef struct DataFile {
|
||
|
|
uint8 *ptr;
|
||
|
|
uint32 size;
|
||
|
|
} DataFile;
|
||
|
|
|
||
|
|
#define DECLARE_DATAFILE(symbol, filename) \
|
||
|
|
extern uint8 _binary_ ## filename ## _start[]; \
|
||
|
|
extern uint8 _binary_ ## filename ## _size[]; \
|
||
|
|
static const DataFile symbol[1] = {{ \
|
||
|
|
(uint8*) _binary_ ## filename ## _start, \
|
||
|
|
(uint32) _binary_ ## filename ## _size, \
|
||
|
|
}}
|
||
|
|
|
||
|
|
static inline uint32
|
||
|
|
DataFile_Decompress(const DataFile *f, void *buffer, uint32 bufferSize)
|
||
|
|
{
|
||
|
|
unsigned long sourcelen = f->size;
|
||
|
|
unsigned long destlen = bufferSize;
|
||
|
|
|
||
|
|
if (puff(buffer, &destlen, f->ptr, &sourcelen)) {
|
||
|
|
asm volatile ("int3");
|
||
|
|
}
|
||
|
|
|
||
|
|
return destlen;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline uint32
|
||
|
|
DataFile_GetDecompressedSize(const DataFile *f)
|
||
|
|
{
|
||
|
|
return DataFile_Decompress(f, NULL, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* __DATAFILE_H_ */
|