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scummvm/saga/yslib.h
Eugene Sandulenko f3d340fb0c WIP for SAGA engine. 
o text formatting is not consistent with rules, just indent utility is too
   dumb for that
 o it does not use OSystem, i.e. it runs on direct SDL calls
 o it may not even compile on your box
 o if you enable it, expect zillions of warnings
 o no sound

Now it runs ITE intro as reinherit did

svn-id: r13564
2004-04-12 21:40:49 +00:00

220 lines
7.3 KiB
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/* ScummVM - Scumm Interpreter
* Copyright (C) 2004 The ScummVM project
*
* The ReInherit Engine is (C)2000-2003 by Daniel Balsom.
*
* 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.
*
* $Header$
*
*/
#ifndef YSLIB_MAIN_H__
#define YSLIB_MAIN_H__
namespace Saga {
enum YS_ERROR_STATES {
YS_E_SUCCESS = 0,
YS_E_FAILURE,
YS_E_MEM
};
enum YS_CONFIRM_STATES {
YS_CONFIRM_NO = 0,
YS_CONFIRM_YES,
YS_CONFIRM_CANCEL
};
/* General purpose quantity-comparison function */
typedef int (YS_COMPARE_FUNC) (const void *, const void *);
/* General-purpose utility macros
\*------------------------------------------------------------------*/
/* Ignore a parameter (Supress warnings) */
#define YS_IGNORE_PARAM( param ) ( void )( param )
/* Calculate the number of elements in an array */
#define YS_NELEMS( arr ) (( sizeof arr ) / ( sizeof *arr ))
#define YS_DUMMY_DECL /* C99 permits statements before declarations */
#define YS_REG_FUNC( arr ) YS_DUMMY_DECL
#define YS_FUNC __func__
#define YS_FLEX_ARRAY
#define YS_FLEX_ARRAY_MOD 0
/* Minimum and maximum of two values */
#define YS_MIN(a,b) (((a) < (b)) ? (a) : (b))
#define YS_MAX(a,b) (((a) > (b)) ? (a) : (b))
/* Minimum and maximum of two objects, convert to lvalue */
#define YS_LV_MIN(a,b) (*((a) < (b)) ? &(a) : &(b))
#define YS_LV_MAX(a,b) (*((a) < (b)) ? &(a) : &(b))
#define YS_ABS(n) ((n < 0) ? -n : n)
/* ys_binread.c : Binary input functions (buffer oriented)
\*------------------------------------------------------------------*/
/* #define YS_ASSUME_2S_COMP */
/* Read a 4CC ( Four characater code ) */
void
ys_read_4cc(char *fourcc,
const unsigned char *data_p, const unsigned char **data_pp);
/* Read 8 bit unsigned integer */
unsigned int ys_read_u8(const unsigned char *, const unsigned char **);
/* Read 8 bit signed integer */
int ys_read_s8(const unsigned char *, const unsigned char **);
/* Read 16 bit unsigned integer, big-endian */
unsigned int ys_read_u16_be(const unsigned char *, const unsigned char **);
/* Read 16 bit unsigned integer, little-endian */
unsigned int ys_read_u16_le(const unsigned char *, const unsigned char **);
/* Read 16 bit signed integer, 2's complement, big-endian */
int ys_read_s16_be(const unsigned char *, const unsigned char **);
/* Read 16 bit signed integer, 2's complement, little-endian */
int ys_read_s16_le(const unsigned char *, const unsigned char **);
/* Read 24 bit unsigned integer, big-endian */
unsigned long ys_read_u24_be(const unsigned char *, const unsigned char **);
/* Read 24 bit unsigned integer, little-endian */
unsigned long ys_read_u24_le(const unsigned char *, const unsigned char **);
/* Read 24 bit signed integer, 2's complement, big-endian */
long ys_read_s24_be(const unsigned char *, const unsigned char **);
/* Read 24 bit signed integer, 2's complement, little-endian */
long ys_read_s24_le(const unsigned char *, const unsigned char **);
/* Read 32 bit unsigned integer, big-endian */
unsigned long ys_read_u32_be(const unsigned char *, const unsigned char **);
/* Read 32 bit unsigned integer, little-endian */
unsigned long ys_read_u32_le(const unsigned char *, const unsigned char **);
/* Read 32 bit signed integer, 2's complement, big-endian */
long ys_read_s32_be(const unsigned char *, const unsigned char **);
/* Read 32 bit signed integer, 2's complement, little-endian */
long ys_read_s32_le(const unsigned char *, const unsigned char **);
/* ys_binwrite.c : Binary output functions ( buffer oriented )
\*------------------------------------------------------------------*/
void ys_write_u8(unsigned int, unsigned char *, unsigned char **);
/* Write 16 bit unsigned integer, big-endian */
void ys_write_u16_be(unsigned int, unsigned char *, unsigned char **);
/* Write 16 bit unsigned integer, little-endian */
void ys_write_u16_le(unsigned int, unsigned char *, unsigned char **);
/* Write 16 bit signed integer, 2's complement, big-endian */
void ys_write_s16_be(int, unsigned char *, unsigned char **);
/* Write 16 bit signed integer, 2's complement, little-endian */
void ys_write_s16_le(int, unsigned char *, unsigned char **);
/* Write 24 bit unsigned integer, big-endian */
void ys_write_u24_be(unsigned long, unsigned char *, unsigned char **);
/* Write 24 bit unsigned integer, little-endian */
void ys_write_u24_le(unsigned long, unsigned char *, unsigned char **);
/* Write 24 bit signed integer, 2's complement, big-endian */
void ys_write_s24_be(long, unsigned char *, unsigned char **);
/* Write 24 bit signed integer, 2's complement, little-endian */
void ys_write_s24_le(long, unsigned char *, unsigned char **);
/* Write 32 bit unsigned integer, big-endian */
void ys_write_u32_be(unsigned long, unsigned char *, unsigned char **);
/* Write 32 bit unsigned integer, little-endian */
void ys_write_u32_le(unsigned long, unsigned char *, unsigned char **);
/* Write 32 bit signed integer, 2's complement, big-endian */
void ys_write_s32_be(long, unsigned char *, unsigned char **);
/* Write 32 bit signed integer, 2's complement, little-endian */
void ys_write_s32_le(long, unsigned char *, unsigned char **);
/* ys_file.c : File management functions
\*------------------------------------------------------------------*/
int ys_get_filesize(FILE *, unsigned long *, int *);
/* Shared declarations for list modules
\*------------------------------------------------------------------*/
enum YS_WALK_DIRECTIONS {
YS_WALK_BACKWARD = 0,
YS_WALK_FORWARD
};
/* ys_dl_list.c : Doubly-linked list functions
\*------------------------------------------------------------------*/
typedef struct ys_dl_node_tag YS_DL_NODE;
typedef struct ys_dl_node_tag YS_DL_LIST;
struct ys_dl_node_tag {
void *data;
struct ys_dl_node_tag *next;
struct ys_dl_node_tag *prev;
};
YS_DL_LIST *ys_dll_create(void);
void ys_dll_destroy(YS_DL_LIST *);
void *ys_dll_get_data(YS_DL_NODE *);
YS_DL_NODE *ys_dll_head(YS_DL_LIST *);
YS_DL_NODE *ys_dll_tail(YS_DL_LIST *);
YS_DL_NODE *ys_dll_next(YS_DL_NODE *);
YS_DL_NODE *ys_dll_prev(YS_DL_NODE *);
YS_DL_NODE *ys_dll_add_head(YS_DL_LIST *, void *, size_t);
YS_DL_NODE *ys_dll_add_tail(YS_DL_LIST *, void *, size_t);
#define ys_dll_preinsert ys_dll_add_tail
#define ys_dll_postinsert ys_dll_add_head
YS_DL_NODE *ys_dll_insert(YS_DL_LIST *, void *, size_t, YS_COMPARE_FUNC *);
int ys_dll_delete(YS_DL_NODE *);
void ys_dll_delete_all(YS_DL_LIST *);
YS_DL_NODE *ys_dll_replace(YS_DL_NODE *, void *, size_t);
int ys_dll_reorder_up(YS_DL_LIST *, YS_DL_NODE *, YS_COMPARE_FUNC *);
int ys_dll_reorder_down(YS_DL_LIST *, YS_DL_NODE *, YS_COMPARE_FUNC *);
int ys_dll_foreach(YS_DL_LIST *,
int, void *, int (*)(void *, void *), YS_DL_NODE **);
} // End of namespace Saga
#endif /* YSLIB_MAIN_H__ */
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