emutools_files.h

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/* Xemu - Emulation (running on Linux/Unix/Windows/OSX, utilizing SDL2) of some
 * 8 bit machines, including the Commodore LCD and Commodore 65 and MEGA65 as well.
   Copyright (C)2016-2022 LGB (Gábor Lénárt) <lgblgblgb@gmail.com>
 
   The goal of emutools.c is to provide a relative simple solution
   for relative simple emulators using SDL2.
 
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 */
 
#ifndef XEMU_COMMON_EMUTOOLS_FILES_H_INCLUDED
#define XEMU_COMMON_EMUTOOLS_FILES_H_INCLUDED
 
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
 
#ifdef  XEMU_ARCH_WIN
#       define FILE_BROWSER     "explorer"
        /* Fow windows, we use 'cmd /c start' as web browser, but it needs special care because of
         * being not a single string as executable. Thus WEB_BROWSER for Windows is handled in
         * code, in emutools_files.c */
#elif   defined(XEMU_ARCH_MAC)
#       define FILE_BROWSER     "open"
#       define WEB_BROWSER      "open"
#else
#       define FILE_BROWSER     "xdg-open"
#       define WEB_BROWSER      "xdg-open"
#endif
 
#define OFF_T_ERROR ((off_t)-1)
 
#define XEMU_OPEN_FILE_FIRST_MODE_USED -1
 
extern void *xemu_load_buffer_p;
extern char  xemu_load_filepath[PATH_MAX];
 
extern int     xemu_load_file ( const char *filename, void *store_to, int min_size, int max_size, const char *cry );
extern int     xemu_save_file ( const char *filename, void *data, int size, const char *cry );
extern int     xemu_open_file ( const char *filename, int mode, int *mode2, char *filepath_back );
extern ssize_t xemu_safe_read ( int fd, void *buffer, size_t length );
extern ssize_t xemu_safe_write ( int fd, const void *buffer, size_t length );
extern int     xemu_safe_close ( int fd );
extern off_t   xemu_safe_file_size_by_fd ( int fd );
extern off_t   xemu_safe_file_size_by_name ( const char *name );
extern int     xemu_create_large_empty_file ( const char *os_path, Uint64 size, int is_sparse );
 
#if defined(HAVE_XEMU_INSTALLER) && !defined(HAVE_XEMU_EXEC_API)
#define HAVE_XEMU_EXEC_API
#endif
 
#ifdef HAVE_XEMU_EXEC_API
#define XEMUEXEC_STILL_RUNNING 259
#ifdef XEMU_ARCH_WIN
typedef void* xemuexec_process_t;
#define XEMUEXEC_NULL_PROCESS_ID NULL
#else
typedef int xemuexec_process_t;
#define XEMUEXEC_NULL_PROCESS_ID 0
#endif
extern xemuexec_process_t xemuexec_run ( char *const args[] );
extern int xemuexec_check_status ( xemuexec_process_t pid, int wait );
#endif
 
extern void xemuexec_open_native_file_browser ( char *dir );
 
#ifdef HAVE_XEMU_INSTALLER
extern void xemu_set_installer ( const char *filename );
#endif
 
#if defined(XEMU_USE_LODEPNG) && defined(XEMU_FILES_SCREENSHOT_SUPPORT)
// NOTE: you must call this function before the final rendering of course, thus source_pixels has a full rendered frame already ;)
extern int xemu_screenshot_png ( const char *path, const char *fn, unsigned int zoom_width, unsigned int zoom_height, Uint32 *source_pixels, unsigned int source_width, unsigned int source_height, unsigned int source_texture_width );
extern char xemu_screenshot_full_path[];
#endif
 
#ifndef XEMU_ARCH_WIN
#       define UNIX_DATADIR_0 "/usr/local/share/xemu"
#       define UNIX_DATADIR_1 "/usr/local/lib/xemu"
#       define UNIX_DATADIR_2 "/usr/share/xemu"
#       define UNIX_DATADIR_3 "/usr/lib/xemu"
#endif
 
#endif