ref: 8f0c7980d2a2605b8344a2e158f923bb532ea8a9
dir: /src/i_system.c/
// Emacs style mode select -*- C++ -*- //----------------------------------------------------------------------------- // // Copyright(C) 1993-1996 Id Software, Inc. // Copyright(C) 2005 Simon Howard // // 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. // // DESCRIPTION: // //----------------------------------------------------------------------------- #include <stdlib.h> #include <stdio.h> #include <string.h> #include <stdarg.h> #ifdef _WIN32 #define WIN32_LEAN_AND_MEAN #include <windows.h> #else #include <unistd.h> #endif #include "config.h" #include "deh_str.h" #include "doomtype.h" #include "m_argv.h" #include "m_config.h" #include "m_misc.h" #include "i_joystick.h" #include "i_sound.h" #include "i_timer.h" #include "i_video.h" #include "i_system.h" #include "w_wad.h" #include "z_zone.h" int mb_used = 16; typedef struct atexit_listentry_s atexit_listentry_t; struct atexit_listentry_s { atexit_func_t func; boolean run_on_error; atexit_listentry_t *next; }; static atexit_listentry_t *exit_funcs = NULL; void I_AtExit(atexit_func_t func, boolean run_on_error) { atexit_listentry_t *entry; entry = malloc(sizeof(*entry)); entry->func = func; entry->run_on_error = run_on_error; entry->next = exit_funcs; exit_funcs = entry; } // Tactile feedback function, probably used for the Logitech Cyberman void I_Tactile(int on, int off, int total) { } int I_GetHeapSize (void) { int p; //! // @arg <mb> // // Specify the heap size, in MiB (default 16). // p = M_CheckParm("-mb"); if (p > 0) { mb_used = atoi(myargv[p+1]); } return mb_used*1024*1024; } byte *I_ZoneBase (int *size) { byte *zonemem; *size = I_GetHeapSize(); zonemem = malloc(*size); printf("zone memory: %p, %x allocated for zone\n", zonemem, *size); return zonemem; } void I_PrintBanner(char *msg) { int i; int spaces = 35 - (strlen(msg) / 2); for (i=0; i<spaces; ++i) putchar(' '); puts(msg); } void I_PrintDivider(void) { int i; for (i=0; i<75; ++i) { putchar('='); } putchar('\n'); } void I_PrintStartupBanner(char *gamedescription) { I_PrintDivider(); I_PrintBanner(gamedescription); I_PrintDivider(); printf( " " PACKAGE_NAME " is free software, covered by the GNU General Public\n" " License. There is NO warranty; not even for MERCHANTABILITY or FITNESS\n" " FOR A PARTICULAR PURPOSE. You are welcome to change and distribute\n" " copies under certain conditions. See the source for more information.\n"); I_PrintDivider(); } // // I_ConsoleStdout // // Returns true if stdout is a real console, false if it is a file // boolean I_ConsoleStdout(void) { #ifdef _WIN32 // SDL "helpfully" always redirects stdout to a file. return 0; #else return isatty(fileno(stdout)); #endif } // // I_Init // /* void I_Init (void) { I_CheckIsScreensaver(); I_InitTimer(); I_InitJoystick(); } void I_BindVariables(void) { I_BindVideoVariables(); I_BindJoystickVariables(); I_BindSoundVariables(); } */ // // I_Quit // void I_Quit (void) { atexit_listentry_t *entry; // Run through all exit functions entry = exit_funcs; while (entry != NULL) { entry->func(); entry = entry->next; } exit(0); } // // I_Error // static boolean already_quitting = false; void I_Error (char *error, ...) { va_list argptr; atexit_listentry_t *entry; if (already_quitting) { fprintf(stderr, "Warning: recursive call to I_Error detected.\n"); exit(-1); } else { already_quitting = true; } // Message first. va_start(argptr, error); fprintf(stderr, "\nError: "); vfprintf(stderr, error, argptr); fprintf(stderr, "\n"); va_end(argptr); fflush(stderr); // Shutdown. Here might be other errors. entry = exit_funcs; while (entry != NULL) { if (entry->run_on_error) { entry->func(); } entry = entry->next; } #ifdef _WIN32 // On Windows, pop up a dialog box with the error message. { char msgbuf[512]; va_start(argptr, error); memset(msgbuf, 0, sizeof(msgbuf)); vsnprintf(msgbuf, sizeof(msgbuf) - 1, error, argptr); va_end(argptr); MessageBox(NULL, msgbuf, "Error", MB_OK); } #endif // abort(); exit(-1); }