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Fixed bug in rzx snapshot extract, changed rzx function names

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This commit is contained in:
fabio.olimpieri 2015-03-18 12:57:14 +00:00
parent 951654101f
commit 7538a0da07
4 changed files with 39 additions and 8 deletions
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2
src/gui_sdl.c
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@ -1953,7 +1953,7 @@ static void rzx_browser()
ordenador.frames_count_rzx=rzx_browser_list[block_n_int].frames_count; ordenador.frames_count_rzx=rzx_browser_list[block_n_int].frames_count;
set_rzxfile_position(rzx_position); rzx_set_file_position(rzx_position);
free((void*)row_selected); free((void*)row_selected);
} }

2
src/menu_sdl.c
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@ -654,7 +654,7 @@ void draw_scr_file(int x,int y, const char *selected_file, int which)
rzx_position=rzx_browser_list[block_n_int].position; rzx_position=rzx_browser_list[block_n_int].position;
if (extract_snapshot(rzx_position, load_path_snaps, ext)) return; //error if (rzx_extract_snapshot(rzx_position, load_path_snaps, ext)) return; //error
strcpy(name, "rzxtemp."); strcpy(name, "rzxtemp.");
strcat(name, ext); strcat(name, ext);

39
src/rzx_lib/rzx.c
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@ -86,6 +86,29 @@ static rzx_u8 *zbuf=0;
static int zmode=0; static int zmode=0;
static rzx_u32 packed_bytes=0; static rzx_u32 packed_bytes=0;
static z_stream zs_temp;
static rzx_u8 *zbuf_temp=0;
static int zmode_temp=0;
static rzx_u32 packed_bytes_temp=0;
void rzx_swap_variables()
{
zs_temp=zs;
zbuf_temp=zbuf;
zmode_temp=zmode;
packed_bytes_temp=packed_bytes;
}
void rzx_swap_variables_revert()
{
zs=zs_temp;
zbuf=zbuf_temp;
zmode=zmode_temp;
packed_bytes=packed_bytes_temp;
}
unsigned int last_snapshot_position; unsigned int last_snapshot_position;
int rzx_pwrite(rzx_u8 *buffer, int len) int rzx_pwrite(rzx_u8 *buffer, int len)
@ -271,7 +294,7 @@ int rzx_scan()
return ret; return ret;
} }
void set_rzxfile_position(unsigned int rzx_position) void rzx_set_file_position(unsigned int rzx_position)
{ {
block.start = rzx_position; block.start = rzx_position;
@ -281,12 +304,16 @@ void set_rzxfile_position(unsigned int rzx_position)
#endif #endif
} }
int extract_snapshot(unsigned int position, char *path, char *ext) int rzx_extract_snapshot(unsigned int position, char *path, char *ext)
{ {
int done=0, ret=0; int done=0, ret=0;
int old_position, fpos; int old_position, fpos;
FILE *snapfile; FILE *snapfile;
#ifdef RZX_USE_COMPRESSION
rzx_swap_variables();
#endif
old_position=ftell(rzxfile); old_position=ftell(rzxfile);
fseek(rzxfile,position,SEEK_SET); fseek(rzxfile,position,SEEK_SET);
@ -338,8 +365,12 @@ old_position=ftell(rzxfile);
} }
else ret=-1; else ret=-1;
fseek(rzxfile,old_position,SEEK_SET); fseek(rzxfile,old_position,SEEK_SET);
return ret;
#ifdef RZX_USE_COMPRESSION
rzx_swap_variables_revert();
#endif
return ret;
} }
void rzx_close_irb() void rzx_close_irb()

4
src/rzx_lib/rzx.h
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@ -138,8 +138,8 @@ int rzx_get_input(rzx_u8 *input);
int rzx_add_snapshot(const char *filename, const rzx_u32 flags); int rzx_add_snapshot(const char *filename, const rzx_u32 flags);
int rzx_add_comment(const char *text, const rzx_u32 flags); int rzx_add_comment(const char *text, const rzx_u32 flags);
void set_rzxfile_position(unsigned int rzx_position); void rzx_set_file_position(unsigned int rzx_position);
int extract_snapshot(unsigned int position, char *path, char *ext); int rzx_extract_snapshot(unsigned int position, char *path, char *ext);
#ifdef RZX_DEBUG #ifdef RZX_DEBUG
extern rzx_u16 INcount; extern rzx_u16 INcount;