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https://github.com/id-Software/DOOM-iOS.git
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The DOOM Classic for iPhone 1.0 source as released on November 3, 2009
This commit is contained in:
Travis Bradshaw
364
code/iphone/prboomInterface.c
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364
code/iphone/prboomInterface.c
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/*
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* prboomInterface.c
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* doom
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*
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* Created by John Carmack on 4/14/09.
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* Copyright 2009 Id Software. All rights reserved.
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*
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* Stuff to get prboom to compile without SDL
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*/
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/*
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Copyright (C) 2009 Id Software, Inc.
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This program 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; either version 2
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of the License, or (at your option) any later version.
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This program 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 this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "../doomiphone.h"
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int desired_fullscreen;
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int usejoystick;
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int joyright;
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int joyleft;
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int joydown;
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int joyup;
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int gl_colorbuffer_bits;
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int gl_depthbuffer_bits;
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int snd_card;
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int mus_card;
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int endoom_mode;
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int use_fullscreen;
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int snd_samplerate;
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int ms_to_next_tick;
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int realtic_clock_rate;
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/* I_SafeExit
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* This function is called instead of exit() by functions that might be called
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* during the exit process (i.e. after exit() has already been called)
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* Prevent infinitely recursive exits -- killough
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*
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* JDC: we don't do any atexit() calls on iphone, so this shouldn't be necessary
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*/
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void I_SafeExit(int rc) {
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static int has_exited;
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if (!has_exited) {
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has_exited=rc ? 2 : 1;
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exit(rc);
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}
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}
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void I_uSleep( unsigned long usec ) {
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usleep( usec );
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}
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/*
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* HasTrailingSlash
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*
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* cphipps - simple test for trailing slash on dir names
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*/
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boolean HasTrailingSlash(const char* dn)
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{
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return ( (dn[strlen(dn)-1] == '/') );
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}
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char* I_FindFile(const char* wfname, const char* ext)
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{
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char *p = malloc( 1024 );
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sprintf( p, "%s/base/%s", SysIphoneGetAppDir(), wfname );
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if (access(p,F_OK))
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strcat(p, ext); // try adding the extension
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if (!access(p,F_OK)) {
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lprintf(LO_INFO, " found %s\n", p);
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return p;
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}
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free( p );
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return NULL;
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#if 0
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// lookup table of directories to search
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static const struct {
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const char *dir; // directory
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const char *sub; // subdirectory
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const char *env; // environment variable
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const char *(*func)(void); // for I_DoomExeDir
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} search[] = {
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{NULL}, // current working directory
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{NULL, NULL, "DOOMWADDIR"}, // run-time $DOOMWADDIR
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{DOOMWADDIR}, // build-time configured DOOMWADDIR
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{NULL, "doom", "HOME"}, // ~/doom
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{NULL, NULL, "HOME"}, // ~
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{NULL, NULL, NULL, I_DoomExeDir}, // config directory
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{"/usr/local/share/games/doom"},
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{"/usr/share/games/doom"},
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{"/usr/local/share/doom"},
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{"/usr/share/doom"},
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};
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int i;
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/* Precalculate a length we will need in the loop */
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size_t pl = strlen(wfname) + strlen(ext) + 4;
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for (i = 0; i < sizeof(search)/sizeof(*search); i++) {
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char * p;
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const char * d = NULL;
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const char * s = NULL;
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/* Each entry in the switch sets d to the directory to look in,
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* and optionally s to a subdirectory of d */
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// switch replaced with lookup table
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if (search[i].env) {
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if (!(d = getenv(search[i].env)))
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continue;
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} else if (search[i].func)
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d = search[i].func();
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else
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d = search[i].dir;
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s = search[i].sub;
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p = malloc((d ? strlen(d) : 0) + (s ? strlen(s) : 0) + pl);
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sprintf(p, "%s%s%s%s%s", d ? d : "", (d && !HasTrailingSlash(d)) ? "/" : "",
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s ? s : "", (s && !HasTrailingSlash(s)) ? "/" : "",
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wfname);
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if (access(p,F_OK))
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strcat(p, ext);
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if (!access(p,F_OK)) {
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lprintf(LO_INFO, " found %s\n", p);
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return p;
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}
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free(p);
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}
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return NULL;
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#endif
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}
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boolean I_StartDisplay(void) {
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return true;
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}
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void I_EndDisplay(void) {}
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int I_GetTime_RealTime(void) { return 0; }
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fixed_t I_GetTimeFrac (void) { return 0; }
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void I_GetTime_SaveMS(void) {}
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unsigned long I_GetRandomTimeSeed(void) { return 0; }
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//const char* I_GetVersionString(char* buf, size_t sz);
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//const char* I_SigString(char* buf, size_t sz, int signum);
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const char *I_DoomExeDir(void) { return SysIphoneGetAppDir(); }
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//void I_SetAffinityMask(void);
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/*
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* I_Read
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*
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* cph 2001/11/18 - wrapper for read(2) which handles partial reads and aborts
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* on error.
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*/
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void I_Read(int fd, void* vbuf, size_t sz)
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{
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unsigned char* buf = vbuf;
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while (sz) {
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int rc = read(fd,buf,sz);
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if (rc <= 0) {
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I_Error("I_Read: read failed: %s", rc ? strerror(errno) : "EOF");
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}
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sz -= rc; buf += rc;
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}
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}
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/*
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* I_Filelength
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*
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* Return length of an open file.
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*/
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int I_Filelength(int handle)
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{
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struct stat fileinfo;
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if (fstat(handle,&fileinfo) == -1)
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I_Error("I_Filelength: %s",strerror(errno));
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return fileinfo.st_size;
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}
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//
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// MUSIC I/O
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//
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void I_InitMusic(void) {}
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void I_ShutdownMusic(void) {}
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void I_UpdateMusic(void) {}
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// Volume.
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void I_SetMusicVolume(int volume) {}
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// PAUSE game handling.
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void I_PauseSong(int handle) {}
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void I_ResumeSong(int handle) {}
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// Registers a song handle to song data.
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int I_RegisterSong(const void *data, size_t len) {
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return 0;
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}
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// cournia - tries to load a music file
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int I_RegisterMusic( const char* filename, musicinfo_t *music ) {
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return 0;
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}
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// Called by anything that wishes to start music.
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// plays a song, and when the song is done,
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// starts playing it again in an endless loop.
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// Horrible thing to do, considering.
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void I_PlaySong(int handle, int looping) {
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}
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// Stops a song over 3 seconds.
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void I_StopSong(int handle) {
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}
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// See above (register), then think backwards
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void I_UnRegisterSong(int handle) {
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}
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void I_PreInitGraphics(void){}
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void I_CalculateRes(unsigned int width, unsigned int height){}
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void I_ShutdownGraphics(void){}
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void I_SetPalette(int pal){}
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void I_UpdateNoBlit (void){}
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void I_FinishUpdate (void){}
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int I_ScreenShot (const char *fname){return 0;}
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// CPhipps -
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// I_SetRes
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// Sets the screen resolution
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void I_SetRes(void)
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{
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int i;
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I_CalculateRes(SCREENWIDTH, SCREENHEIGHT);
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// set first three to standard values
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for (i=0; i<3; i++) {
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screens[i].width = SCREENWIDTH;
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screens[i].height = SCREENHEIGHT;
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screens[i].byte_pitch = SCREENPITCH;
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screens[i].short_pitch = SCREENPITCH / V_GetModePixelDepth(VID_MODE16);
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screens[i].int_pitch = SCREENPITCH / V_GetModePixelDepth(VID_MODE32);
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}
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// statusbar
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screens[4].width = SCREENWIDTH;
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screens[4].height = (ST_SCALED_HEIGHT+1);
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screens[4].byte_pitch = SCREENPITCH;
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screens[4].short_pitch = SCREENPITCH / V_GetModePixelDepth(VID_MODE16);
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screens[4].int_pitch = SCREENPITCH / V_GetModePixelDepth(VID_MODE32);
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lprintf(LO_INFO,"I_SetRes: Using resolution %dx%d\n", SCREENWIDTH, SCREENHEIGHT);
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}
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void I_UpdateVideoMode(void)
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{
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lprintf(LO_INFO, "I_UpdateVideoMode: %dx%d\n", SCREENWIDTH, SCREENHEIGHT );
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V_InitMode(VID_MODEGL);
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I_SetRes();
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#if 0
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screens[0].not_on_heap = true;
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screens[0].data = NULL;
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screens[0].byte_pitch = screen->pitch;
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screens[0].short_pitch = screen->pitch / V_GetModePixelDepth(VID_MODE16);
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screens[0].int_pitch = screen->pitch / V_GetModePixelDepth(VID_MODE32);
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#endif
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V_AllocScreens();
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R_InitBuffer(SCREENWIDTH, SCREENHEIGHT);
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gld_Init(SCREENWIDTH, SCREENHEIGHT);
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}
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void I_InitGraphics(void)
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{
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char titlebuffer[2048];
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static int firsttime=1;
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SCREENWIDTH = 480;
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SCREENHEIGHT = 320;
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if (firsttime)
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{
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firsttime = 0;
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atexit(I_ShutdownGraphics);
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lprintf(LO_INFO, "I_InitGraphics: %dx%d\n", SCREENWIDTH, SCREENHEIGHT);
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/* Set the video mode */
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I_UpdateVideoMode();
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/* Setup the window title */
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strcpy(titlebuffer,PACKAGE);
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strcat(titlebuffer," ");
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strcat(titlebuffer,VERSION);
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// SDL_WM_SetCaption(titlebuffer, titlebuffer);
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/* Initialize the input system */
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// I_InitInputs();
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}
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}
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/* I_StartTic
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* Called by D_DoomLoop,
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* called before processing each tic in a frame.
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* Quick syncronous operations are performed here.
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* Can call D_PostEvent.
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*/
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void I_StartTic (void){}
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/* I_StartFrame
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* Called by D_DoomLoop,
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* called before processing any tics in a frame
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* (just after displaying a frame).
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* Time consuming syncronous operations
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* are performed here (joystick reading).
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* Can call D_PostEvent.
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*/
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void I_StartFrame (void){}
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void I_Init(){}
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unsigned int SDL_GetTicks() { return 0; };
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int (*I_GetTime)(void) = I_GetTime_RealTime;
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