333 lines
11 KiB
C
333 lines
11 KiB
C
/* vim:expandtab:ts=2 sw=2:
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*/
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/* Grafx2 - The Ultimate 256-color bitmap paint program
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Copyright owned by various GrafX2 authors, see COPYRIGHT.txt for details.
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Grafx2 is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2
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of the License.
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Grafx2 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Grafx2; if not, see <http://www.gnu.org/licenses/>
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#ifdef _MSC_VER
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#define strdup _strdup
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#if _MSC_VER < 1900
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#define snprintf _snprintf
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#endif
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#endif
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#if defined(__macosx__)
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#import <CoreFoundation/CoreFoundation.h>
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#import <sys/param.h>
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#elif defined(__FreeBSD__)
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#include <sys/param.h>
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#include <unistd.h>
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#elif defined(__MINT__)
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#include <mint/osbind.h>
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#include <mint/sysbind.h>
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#elif defined(__linux__)
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#include <limits.h>
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#include <unistd.h>
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#include <errno.h>
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#elif defined(__HAIKU__)
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#include <FindDirectory.h>
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#include "haiku.h"
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#endif
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#include "struct.h"
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#include "io.h"
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#include "setup.h"
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#include "global.h"
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#include "gfx2log.h"
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#ifndef PATH_MAX
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// This is a random default value ...
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#define PATH_MAX 32768
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#endif
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// Determine which directory contains the executable.
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// IN: Main's argv[0], some platforms need it, some don't.
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// OUT: program_dir. Trailing / or \ is kept.
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// Note : in fact this is only used to check for the datafiles and fonts in
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// this same directory.
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char * Get_program_directory(const char * argv0)
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{
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char * program_dir;
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// MacOSX
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#if defined(__macosx__)
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program_dir = malloc(MAXPATHLEN);
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if (program_dir != NULL)
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{
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CFURLRef url = CFBundleCopyBundleURL(CFBundleGetMainBundle());
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(void)argv0; // unused
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CFURLGetFileSystemRepresentation(url,true,(UInt8*)program_dir,MAXPATHLEN);
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CFRelease(url);
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// Append trailing slash
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strcat(program_dir ,"/");
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}
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// AmigaOS and alike: hard-coded volume name.
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#elif defined(__amigaos4__) || defined(__AROS__) || defined(__MORPHOS__) || defined(__amigaos__)
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(void)argv0; // unused
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program_dir = strdup("PROGDIR:");
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#elif defined(__MINT__)
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static char path[1024]={0};
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char currentDrive;
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(void)argv0; // unused
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currentDrive = 'A' + Dgetdrv();
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Dgetpath(path, 0);
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program_dir = malloc(4 + strlen(path) + 1);
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sprintf(program_dir,"%c:\\%s%s", currentDrive, path, PATH_SEPARATOR);
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#elif defined(__ANDROID__)
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(void)argv0; // unused
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progam_dir = malloc(MAX_PATH_CHARACTERS);
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getcwd(program_dir, MAX_PATH_CHARACTERS);
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strcat(program_dir, "/");
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// Linux: argv[0] unreliable
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#elif defined(__linux__) || defined(__FreeBSD__)
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#if defined(__linux__)
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#define SELF_PATH "/proc/self/exe"
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#elif defined(__FreeBSD__)
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#define SELF_PATH "/proc/curproc/file"
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#endif
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if (argv0[0]!='/')
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{
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ssize_t path_len;
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char path[PATH_MAX];
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path_len = readlink(SELF_PATH, path, sizeof(path));
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if (path_len >= 0)
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{
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path[path_len] = '\0'; // add null terminating char
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GFX2_Log(GFX2_DEBUG, "binary path resolved to : %s\n", path);
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program_dir = Extract_path(path);
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}
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else
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{
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char * current_dir, * tmp;
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size_t len;
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program_dir = NULL;
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GFX2_Log(GFX2_WARNING, "readlink(%s) failed : %s\n", SELF_PATH, strerror(errno));
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current_dir = Get_current_directory(NULL, NULL, 0);
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if (current_dir != NULL)
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{
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len = strlen(current_dir) + strlen(argv0) + 2;
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tmp = malloc(len);
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if (tmp != NULL)
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{
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snprintf(tmp, len, "%s/%s", current_dir, argv0);
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program_dir = Extract_path(tmp);
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free(tmp);
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}
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free(current_dir);
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}
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}
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}
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else
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program_dir = Extract_path(argv0);
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#elif defined(__HAIKU__)
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program_dir = Extract_path(haiku_get_app_path());
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// Others: The part of argv[0] before the executable name.
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// Keep the last \ or /.
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// On Windows, Mingw32 already provides the full path in all cases.
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#else
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program_dir = Extract_path(argv0);
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#endif
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if (program_dir == NULL)
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{
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GFX2_Log(GFX2_WARNING, "Failed to detect program directory, using current directory\n");
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program_dir = strdup("." PATH_SEPARATOR);
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}
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return program_dir;
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}
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/// Determine which directory contains the read-only data.
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/// @param program_dir The directory containing the executable
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/// @return the path. Trailing / or \ is kept.
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char * Get_data_directory(const char * program_dir)
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{
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const char * to_append;
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// On all platforms, data is relative to the executable's directory
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#if defined(__macosx__)
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// On MacOSX, it is stored in a special folder:
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to_append = "Contents/Resources/";
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#elif defined (__GP2X__) || defined (__gp2x__) || defined (__WIZ__) || defined (__CAANOO__) || defined(GCWZERO) || defined(__AROS__) || defined(__ANDROID__) || defined(__amigaos__)
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// On GP2X, AROS and Android, executable is not in bin/
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to_append = "data/";
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#elif defined (__MINT__)
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//on tos, the same directory is used for everything
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return strdup(program_dir);
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#elif defined(__SWITCH__)
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//on switch, we store everything in the SD card in /switch/grafx2
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return strdup("/switch/grafx2/");
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#elif defined(__HAIKU__)
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// Haiku provides us with an API to find it.
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char * data_dir = malloc(PATH_MAX);
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if (find_path(Get_data_directory, B_FIND_PATH_DATA_DIRECTORY, "grafx2/", data_dir, PATH_MAX) == B_OK)
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{
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return data_dir;
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}
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else
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{
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// If the program is not installed, find_path will fail. Try from local dir then.
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free(data_dir);
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to_append = "../share/grafx2/";
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}
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#elif defined(WIN32)
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to_append = "..\\share\\grafx2\\";
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#else
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// All other targets, program is in a "bin" subdirectory
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to_append = "../share/grafx2/";
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#endif
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return Filepath_append_to_dir(program_dir, to_append);
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}
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// Determine which directory should store the user's configuration.
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//
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// For most Unix and Windows platforms:
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// If a config file already exists in program_dir, it will return it in priority
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// (Useful for development, and possibly for upgrading from DOS version)
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// If the standard directory doesn't exist yet, this function will attempt
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// to create it ($(HOME)/.grafx2, or %APPDATA%\GrafX2)
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// If it cannot be created, this function will return the executable's
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// own directory.
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// IN: The directory containing the executable
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// OUT: Write into config_dir. Trailing / or \ is kept.
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char * Get_config_directory(const char * program_dir)
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{
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// AmigaOS4 provides the PROGDIR: alias to the directory where the executable is.
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#if defined(__amigaos4__) || defined(__AROS__) || defined(__amigaos__)
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return strdup("PROGDIR:");
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// GP2X
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#elif defined(__GP2X__) || defined(__WIZ__) || defined(__CAANOO__)
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// On the GP2X, the program is installed to the sdcard, and we don't want to mess with the system tree which is
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// on an internal flash chip. So, keep these settings locals.
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return strdup(program_dir);
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// For TOS we store everything in the program dir
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#elif defined(__MINT__)
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return strdup(program_dir);
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//on switch, we store everything in the SD card in /switch/grafx2
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#elif defined(__SWITCH__)
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return strdup("/switch/grafx2/");
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// For all other platforms, there is some kind of settings dir to store this.
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#else
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char * config_dir;
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size_t len;
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char * filename;
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#ifdef GCWZERO
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config_dir = strdup("/media/home/.grafx2/");
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#elif defined(__macosx__)
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// On all the remaining targets except OSX, the executable is in ./bin
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config_dir = strdup(program_dir);
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#else
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len = strlen(program_dir) + 2 + strlen(PATH_SEPARATOR) + 1;
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config_dir = malloc(len);
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snprintf(config_dir, len, "%s%s", program_dir, ".." PATH_SEPARATOR);
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#endif
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filename = Filepath_append_to_dir(config_dir, CONFIG_FILENAME);
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if (File_exists(filename))
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{
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// gfx2.cfg found, this is a portable installation
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Portable_Installation_Detected = 1;
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}
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else
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{
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char *config_parent_dir;
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#if defined(__WIN32__) || defined(WIN32)
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// "%APPDATA%\GrafX2"
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const char* Config_SubDir = "GrafX2";
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config_parent_dir = getenv("APPDATA");
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#elif defined(__BEOS__) || defined(__HAIKU__)
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// "`finddir B_USER_SETTINGS_DIRECTORY`/grafx2"
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const char* Config_SubDir = "grafx2";
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{
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static char parent[MAX_PATH_CHARACTERS];
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find_directory(B_USER_SETTINGS_DIRECTORY, 0, false, parent,
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MAX_PATH_CHARACTERS);
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config_parent_dir = parent;
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}
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#elif defined(__macosx__)
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// "~/Library/Preferences/com.googlecode.grafx2"
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const char* Config_SubDir = "Library/Preferences/com.googlecode.grafx2";
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config_parent_dir = getenv("HOME");
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#elif defined(__MINT__)
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const char* Config_SubDir = "";
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printf("GFX2.CFG not found in %s\n",filename);
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config_parent_dir = strdup(config_dir);
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#else
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// ~/.config/grafx2
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const char* Config_SubDir;
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config_parent_dir = getenv("XDG_CONFIG_HOME");
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if (config_parent_dir)
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Config_SubDir = "grafx2";
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else {
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Config_SubDir = ".config/grafx2";
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config_parent_dir = getenv("HOME");
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}
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#endif
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Portable_Installation_Detected = 0;
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if (config_parent_dir && config_parent_dir[0]!='\0')
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{
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size_t size = strlen(config_parent_dir);
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free(config_dir);
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len = size + strlen(Config_SubDir) + strlen(PATH_SEPARATOR) + 1;
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if (config_parent_dir[size-1] != '\\' && config_parent_dir[size-1] != '/')
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{
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len += strlen(PATH_SEPARATOR);
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config_dir = malloc(len);
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snprintf(config_dir, len, "%s%s%s%s",
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config_parent_dir, PATH_SEPARATOR,
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Config_SubDir, PATH_SEPARATOR);
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}
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else
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{
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config_dir = malloc(len);
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snprintf(config_dir, len, "%s%s%s",
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config_parent_dir,
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Config_SubDir, PATH_SEPARATOR);
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}
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if (!Directory_exists(config_dir))
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{
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// try to create it
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if (Directory_create(config_dir) < 0)
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{
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GFX2_Log(GFX2_WARNING, "Failed to create directory \"%s\"\n", config_dir);
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// Echec: on se rabat sur le repertoire de l'executable.
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Portable_Installation_Detected = 1;
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free(config_dir);
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#if defined(__macosx__)
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len = strlen(program_dir) + 4;
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config_dir = malloc(len);
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snprintf(config_dir, len, "%s%s", program_dir, "../");
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#else
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config_dir = strdup(program_dir);
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#endif
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}
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GFX2_Log(GFX2_INFO, "\"%s\" directory created.\n", config_dir);
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}
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}
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}
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free(filename);
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return config_dir;
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#endif
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}
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