Mercurial > repos > blastem

annotate util.h @ 1420:975b5b7eaa77

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fix DMA from byte-wide SRAM
author Michael Pavone <pavone@retrodev.com>
date Mon, 26 Jun 2017 21:13:17 -0700
parents 5ceb316c479a
children e2bd03ed3190
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
495
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1 #ifndef UTIL_H_
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
2 #define UTIL_H_
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
3
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
4 #include <stdio.h>
957
1618d3676a35 Save state menu WIP
Michael Pavone <pavone@retrodev.com>
parents: 955
diff changeset
5 #include <time.h>
1295
96ad1b9bbb3a Make save directory configurable. Satisfies ticket:4
Michael Pavone <pavone@retrodev.com>
parents: 1292
diff changeset
6 #include "tern.h"
495
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
7
866
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents: 794
diff changeset
8 typedef struct {
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents: 794
diff changeset
9 char *name;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents: 794
diff changeset
10 uint8_t is_dir;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents: 794
diff changeset
11 } dir_entry;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents: 794
diff changeset
12
1008
51885857c019 Removed assumptions that path separators are Unix style outside of Unix-only verions of functions
Michael Pavone <pavone@retrodev.com>
parents: 957
diff changeset
13 #ifdef _WIN32
51885857c019 Removed assumptions that path separators are Unix style outside of Unix-only verions of functions
Michael Pavone <pavone@retrodev.com>
parents: 957
diff changeset
14 #define PATH_SEP "\\"
51885857c019 Removed assumptions that path separators are Unix style outside of Unix-only verions of functions
Michael Pavone <pavone@retrodev.com>
parents: 957
diff changeset
15 #else
51885857c019 Removed assumptions that path separators are Unix style outside of Unix-only verions of functions
Michael Pavone <pavone@retrodev.com>
parents: 957
diff changeset
16 #define PATH_SEP "/"
51885857c019 Removed assumptions that path separators are Unix style outside of Unix-only verions of functions
Michael Pavone <pavone@retrodev.com>
parents: 957
diff changeset
17 #endif
51885857c019 Removed assumptions that path separators are Unix style outside of Unix-only verions of functions
Michael Pavone <pavone@retrodev.com>
parents: 957
diff changeset
18
495
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
19 //Utility functions
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
20
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
21 //Allocates a new string containing the concatenation of first and second
876
540cc4a7d626 Fix Android build breakage
Michael Pavone <pavone@retrodev.com>
parents: 875
diff changeset
22 char * alloc_concat(char const * first, char const * second);
495
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
23 //Allocates a new string containing the concatenation of the strings pointed to by parts
876
540cc4a7d626 Fix Android build breakage
Michael Pavone <pavone@retrodev.com>
parents: 875
diff changeset
24 char * alloc_concat_m(int num_parts, char const ** parts);
1292
5905593d6828 Allow initial_path to contain variable references which allows the default value to be actually specified in the default config file
Michael Pavone <pavone@retrodev.com>
parents: 1140
diff changeset
25 //Returns a newly allocated string in which all variables in based are replaced with values from vars or the environment
5905593d6828 Allow initial_path to contain variable references which allows the default value to be actually specified in the default config file
Michael Pavone <pavone@retrodev.com>
parents: 1140
diff changeset
26 char *replace_vars(char *base, tern_node *vars, uint8_t allow_env);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents: 1008
diff changeset
27 //Byteswaps a ROM image in memory
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents: 1008
diff changeset
28 void byteswap_rom(int filesize, uint16_t *cart);
495
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
29 //Returns the size of a file using fseek and ftell
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
30 long file_size(FILE * f);
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
31 //Strips whitespace and non-printable characters from the beginning and end of a string
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
32 char * strip_ws(char * text);
496
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
33 //Inserts a null after the first word, returns a pointer to the second word
495
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
34 char * split_keyval(char * text);
1305
5ceb316c479a Allow games to be specified in ROM DB via sha1 instead of product ID. Added a new ROM DB memory map device type fixed for emulating simple fixed value copy protection registers. Used those two features to support Ya Se Chuan Shuo via a ROM DB entry.
Michael Pavone <pavone@retrodev.com>
parents: 1295
diff changeset
35 //Takes a binary byte buffer and produces a lowercase hex string
5ceb316c479a Allow games to be specified in ROM DB via sha1 instead of product ID. Added a new ROM DB memory map device type fixed for emulating simple fixed value copy protection registers. Used those two features to support Ya Se Chuan Shuo via a ROM DB entry.
Michael Pavone <pavone@retrodev.com>
parents: 1295
diff changeset
36 void bin_to_hex(uint8_t *output, uint8_t *input, uint64_t size);
1008
51885857c019 Removed assumptions that path separators are Unix style outside of Unix-only verions of functions
Michael Pavone <pavone@retrodev.com>
parents: 957
diff changeset
37 //Determines whether a character is a valid path separator for the current platform
51885857c019 Removed assumptions that path separators are Unix style outside of Unix-only verions of functions
Michael Pavone <pavone@retrodev.com>
parents: 957
diff changeset
38 char is_path_sep(char c);
51885857c019 Removed assumptions that path separators are Unix style outside of Unix-only verions of functions
Michael Pavone <pavone@retrodev.com>
parents: 957
diff changeset
39 //Determines whether a path is considered an absolute path on the current platform
51885857c019 Removed assumptions that path separators are Unix style outside of Unix-only verions of functions
Michael Pavone <pavone@retrodev.com>
parents: 957
diff changeset
40 char is_absolute_path(char *path);
955
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents: 876
diff changeset
41 //Returns the basename of a path with th extension (if any) stripped
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents: 876
diff changeset
42 char * basename_no_extension(char *path);
1140
4490c9c12272 Detect system type from filename if header based methods fail. Allow overriding system type from command line.
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
43 //Returns the extension from a path or NULL if there is no extension
4490c9c12272 Detect system type from filename if header based methods fail. Allow overriding system type from command line.
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
44 char *path_extension(char *path);
768
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now
Michael Pavone <pavone@retrodev.com>
parents: 742
diff changeset
45 //Gets the smallest power of two that is >= a certain value, won't work for values > 0x80000000
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now
Michael Pavone <pavone@retrodev.com>
parents: 742
diff changeset
46 uint32_t nearest_pow2(uint32_t val);
496
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
47 //Should be called by main with the value of argv[0] for use by get_exe_dir
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
48 void set_exe_str(char * str);
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
49 //Returns the directory the executable is in
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
50 char * get_exe_dir();
742
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 496
diff changeset
51 //Returns the user's home directory
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 496
diff changeset
52 char * get_home_dir();
875
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
53 //Returns an appropriate path for storing config files
876
540cc4a7d626 Fix Android build breakage
Michael Pavone <pavone@retrodev.com>
parents: 875
diff changeset
54 char const *get_config_dir();
955
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents: 876
diff changeset
55 //Returns an appropriate path for saving non-config data like savestates
1295
96ad1b9bbb3a Make save directory configurable. Satisfies ticket:4
Michael Pavone <pavone@retrodev.com>
parents: 1292
diff changeset
56 char const *get_userdata_dir();
875
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
57 //Reads a file bundled with the executable
1140
4490c9c12272 Detect system type from filename if header based methods fail. Allow overriding system type from command line.
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
58 char *read_bundled_file(char *name, uint32_t *sizeret);
866
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents: 794
diff changeset
59 //Retunrs an array of normal files and directories residing in a directory
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents: 794
diff changeset
60 dir_entry *get_dir_list(char *path, size_t *numret);
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents: 794
diff changeset
61 //Frees a dir list returned by get_dir_list
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents: 794
diff changeset
62 void free_dir_list(dir_entry *list, size_t numentries);
957
1618d3676a35 Save state menu WIP
Michael Pavone <pavone@retrodev.com>
parents: 955
diff changeset
63 //Gets the modification time of a file
1618d3676a35 Save state menu WIP
Michael Pavone <pavone@retrodev.com>
parents: 955
diff changeset
64 time_t get_modification_time(char *path);
955
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents: 876
diff changeset
65 //Recusrively creates a directory if it does not exist
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents: 876
diff changeset
66 int ensure_dir_exists(char *path);
496
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
67 //Returns the contents of a symlink in a newly allocated string
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
68 char * readlink_alloc(char * path);
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 768
diff changeset
69 //Prints an error message to stderr and to a message box if not in headless mode and then exits
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 768
diff changeset
70 void fatal_error(char *format, ...);
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 768
diff changeset
71 //Prints an information message to stdout and to a message box if not in headless mode and not attached to a console
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 768
diff changeset
72 void info_message(char *format, ...);
794
792be135d3af Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
73 //Prints an information message to stderr and to a message box if not in headless mode and not attached to a console
792be135d3af Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
74 void warning(char *format, ...);
495
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
75
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
76 #endif //UTIL_H_