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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
/*
* GP2X: Main backend.
*
*/
#include "backends/platform/gp2x/gp2x-common.h"
#include "backends/platform/gp2x/gp2x-hw.h"
#include "backends/platform/gp2x/gp2x-mem.h"
#include "common/config-manager.h"
#include "common/file.h"
#include "common/util.h"
#include "base/main.h"
#include "backends/saves/default/default-saves.h"
#include "backends/timer/default/default-timer.h"
#include "backends/plugins/posix/posix-provider.h"
#include "backends/fs/posix/posix-fs-factory.h" // for getFilesystemFactory()
#include "sound/mixer_intern.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <limits.h>
#include <errno.h>
#include <sys/stat.h>
#include <time.h> // for getTimeAndDate()
// Disable for normal serial logging.
#define DUMP_STDOUT
#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#define SAMPLES_PER_SEC 11025
//#define SAMPLES_PER_SEC 22050
//#define SAMPLES_PER_SEC 44100
static Uint32 timer_handler(Uint32 interval, void *param) {
((DefaultTimerManager *)param)->handler();
return interval;
}
int main(int argc, char *argv[]) {
//extern OSystem *OSystem_GP2X_create();
//g_system = OSystem_GP2X_create();
g_system = new OSystem_GP2X();
assert(g_system);
// Check if Plugins are enabled (Using the hacked up GP2X provider)
#ifdef DYNAMIC_MODULES
PluginManager::instance().addPluginProvider(new GP2XPluginProvider());
#endif
// Invoke the actual ScummVM main entry point:
int res = scummvm_main(argc, argv);
g_system->quit();
return res;
}
OSystem *OSystem_GP2X_create() {
return new OSystem_GP2X();
}
void OSystem_GP2X::initBackend() {
assert(!_inited);
ConfMan.setInt("joystick_num", 0);
int joystick_num = ConfMan.getInt("joystick_num");
uint32 sdlFlags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER | SDL_INIT_EVENTTHREAD;
if (ConfMan.hasKey("disable_sdl_parachute"))
sdlFlags |= SDL_INIT_NOPARACHUTE;
if (joystick_num > -1)
sdlFlags |= SDL_INIT_JOYSTICK;
if (SDL_Init(sdlFlags) == -1) {
error("Could not initialize SDL: %s", SDL_GetError());
}
SDL_ShowCursor(SDL_DISABLE);
// Setup default save path to be workingdir/saves
#ifndef PATH_MAX
#define PATH_MAX 255
#endif
char savePath[PATH_MAX+1];
char workDirName[PATH_MAX+1]; /* To be passed to getcwd system call. */
if (getcwd(workDirName, PATH_MAX) == NULL) {
error("Could not obtain current working directory.");
} else {
printf("Current working directory: %s\n", workDirName);
}
strcpy(savePath, workDirName);
strcat(savePath, "/saves");
printf("Current save directory: %s\n", savePath);
struct stat sb;
if (stat(savePath, &sb) == -1)
if (errno == ENOENT) // Create the dir if it does not exist
if (mkdir(savePath, 0755) != 0)
warning("mkdir for '%s' failed!", savePath);
ConfMan.registerDefault("savepath", savePath);
// Setup default extra data path for engine data files to be workingdir/engine-data
char enginedataPath[PATH_MAX+1];
strcpy(enginedataPath, workDirName);
strcat(enginedataPath, "/engine-data");
printf("Current engine-data directory: %s\n", enginedataPath);
//struct stat sb;
if (stat(enginedataPath, &sb) == -1)
if (errno == ENOENT) // Create the dir if it does not exist
if (mkdir(enginedataPath, 0755) != 0)
warning("mkdir for '%s' failed!", enginedataPath);
Common::File::addDefaultDirectory(enginedataPath);
// Note: Review and clean this, it's OTT at the moment.
#if defined(DUMP_STDOUT)
// The GP2X has a serial console but most users do not use this so we
// output all our STDOUT and STDERR to files for debug purposes.
char STDOUT_FILE[PATH_MAX+1];
char STDERR_FILE[PATH_MAX+1];
strcpy(STDOUT_FILE, workDirName);
strcpy(STDERR_FILE, workDirName);
strcat(STDOUT_FILE, "/scummvm.stdout.txt");
strcat(STDERR_FILE, "/scummvm.stderr.txt");
/* Flush the output in case anything is queued */
fclose(stdout);
fclose(stderr);
/* Redirect standard input and standard output */
FILE *newfp = freopen(STDOUT_FILE, "w", stdout);
if (newfp == NULL) { /* This happens on NT */
#if !defined(stdout)
stdout = fopen(STDOUT_FILE, "w");
#else
newfp = fopen(STDOUT_FILE, "w");
if (newfp) {
*stdout = *newfp;
}
#endif
}
newfp = freopen(STDERR_FILE, "w", stderr);
if (newfp == NULL) { /* This happens on NT */
#if !defined(stderr)
stderr = fopen(STDERR_FILE, "w");
#else
newfp = fopen(STDERR_FILE, "w");
if (newfp) {
*stderr = *newfp;
}
#endif
}
setbuf(stderr, NULL); /* No buffering */
#endif // DUMP_STDOUT
// Setup other defaults.
ConfMan.registerDefault("aspect_ratio", true);
ConfMan.registerDefault("music_volume", 220); // Up default volume as we use a seperate volume system anyway.
ConfMan.registerDefault("sfx_volume", 220);
ConfMan.registerDefault("speech_volume", 220);
ConfMan.registerDefault("autosave_period", 3 * 60); // Trigger autosave every 3 minutes - On low batts 4 mins is about your warning time.
_graphicsMutex = createMutex();
_cksumValid = false;
_mode = GFX_NORMAL;
_scaleFactor = 0;
_scalerProc = Normal1x;
_fullscreen = true;
_adjustAspectRatio = ConfMan.getBool("aspect_ratio");
_scalerType = 0;
_modeFlags = 0;
_adjustZoomOnMouse = false;
ConfMan.setBool("FM_low_quality", true);
// enable joystick
if (joystick_num > -1 && SDL_NumJoysticks() > 0) {
_joystick = SDL_JoystickOpen(joystick_num);
}
// Create the savefile manager, if none exists yet (we check for this to
// allow subclasses to provide their own).
if (_savefile == 0) {
_savefile = new DefaultSaveFileManager(savePath);
}
// Create and hook up the mixer, if none exists yet (we check for this to
// allow subclasses to provide their own).
if (_mixer == 0) {
setupMixer();
}
// Create and hook up the timer manager, if none exists yet (we check for
// this to allow subclasses to provide their own).
if (_timer == 0) {
// TODO: We could implement a custom SDLTimerManager by using
// SDL_AddTimer. That might yield better timer resolution, but it would
// also change the semantics of a timer: Right now, ScummVM timers
// *never* run in parallel, due to the way they are implemented. If we
// switched to SDL_AddTimer, each timer might run in a separate thread.
// Unfortunately, not all our code is prepared for that, so we can't just
// switch. But it's a long term goal to do just that!
_timer = new DefaultTimerManager();
_timerID = SDL_AddTimer(10, &timer_handler, _timer);
// Initialise any GP2X specific stuff we may want (Volume, Batt Status etc.)
GP2X_device_init();
// Set Default hardware mixer volume to a plesent level.
// This is done to 'reset' volume level if set by other apps.
GP2X_mixer_set_volume(70, 70);
}
//if (SDL_GP2X_MouseType() == 0) {
// // No mouse, F100 default state.
// _gp2xInputType = 0;
// displayMessageOnOSD("F100 GP2X Found");
//}
//if (SDL_GP2X_MouseType() == 1) {
// // USB mouse found.
// _gp2xInputType = 1;
// displayMessageOnOSD("USB Mouse Found");
//}
//if (SDL_GP2X_MouseType() == 2) {
// // F200 touch screen found. - F200 default state.
// _gp2xInputType = 2;
// displayMessageOnOSD("Touch Screen Found");
//}
OSystem::initBackend();
_inited = true;
}
OSystem_GP2X::OSystem_GP2X()
:
_osdSurface(0), _osdAlpha(SDL_ALPHA_TRANSPARENT), _osdFadeStartTime(0),
_hwscreen(0), _screen(0), _screenWidth(0), _screenHeight(0),
_tmpscreen(0), _overlayWidth(0), _overlayHeight(0),
_overlayVisible(false),
_overlayscreen(0), _tmpscreen2(0),
_samplesPerSec(0),
_cdrom(0), _scalerProc(0), _modeChanged(false), _screenChangeCount(0), _dirtyChecksums(0),
_mouseVisible(false), _mouseDrawn(false), _mouseData(0), _mouseSurface(0),
_mouseOrigSurface(0), _cursorTargetScale(1), _cursorPaletteDisabled(true),
_joystick(0),
_currentShakePos(0), _newShakePos(0),
_paletteDirtyStart(0), _paletteDirtyEnd(0),
_savefile(0),
_mixer(0),
_timer(0),
_graphicsMutex(0), _transactionMode(kTransactionNone) {
// allocate palette storage
_currentPalette = (SDL_Color *)calloc(sizeof(SDL_Color), 256);
_cursorPalette = (SDL_Color *)calloc(sizeof(SDL_Color), 256);
_mouseBackup.x = _mouseBackup.y = _mouseBackup.w = _mouseBackup.h = 0;
// reset mouse state
memset(&_km, 0, sizeof(_km));
memset(&_mouseCurState, 0, sizeof(_mouseCurState));
_inited = false;
}
OSystem_GP2X::~OSystem_GP2X() {
SDL_RemoveTimer(_timerID);
SDL_CloseAudio();
free(_dirtyChecksums);
free(_currentPalette);
free(_cursorPalette);
free(_mouseData);
delete _savefile;
delete _mixer;
delete _timer;
}
uint32 OSystem_GP2X::getMillis() {
return SDL_GetTicks();
}
void OSystem_GP2X::delayMillis(uint msecs) {
SDL_Delay(msecs);
}
void OSystem_GP2X::getTimeAndDate(struct tm &t) const {
time_t curTime = time(0);
t = *localtime(&curTime);
}
Common::TimerManager *OSystem_GP2X::getTimerManager() {
assert(_timer);
return _timer;
}
Common::SaveFileManager *OSystem_GP2X::getSavefileManager() {
assert(_savefile);
return _savefile;
}
FilesystemFactory *OSystem_GP2X::getFilesystemFactory() {
return &POSIXFilesystemFactory::instance();
}
//void OSystem_GP2X::setTimerCallback(TimerProc callback, int timer) {
// SDL_SetTimer(timer, (SDL_TimerCallback) callback);
//}
bool OSystem_GP2X::hasFeature(Feature f) {
return
(f == kFeatureFullscreenMode) ||
(f == kFeatureAspectRatioCorrection) ||
(f == kFeatureAutoComputeDirtyRects) ||
(f == kFeatureCursorHasPalette);
}
void OSystem_GP2X::setFeatureState(Feature f, bool enable) {
switch (f) {
case kFeatureFullscreenMode:
return;
case kFeatureAspectRatioCorrection:
setAspectRatioCorrection(enable);
break;
case kFeatureAutoComputeDirtyRects:
if (enable)
_modeFlags |= DF_WANT_RECT_OPTIM;
else
_modeFlags &= ~DF_WANT_RECT_OPTIM;
break;
case kFeatureDisableKeyFiltering:
// TODO: Extend as more support for this is added to engines.
return;
default:
break;
}
}
bool OSystem_GP2X::getFeatureState(Feature f) {
assert (_transactionMode == kTransactionNone);
switch (f) {
case kFeatureFullscreenMode:
return false;
//case kFeatureFullscreenMode:
// return _fullscreen;
case kFeatureAspectRatioCorrection:
return _adjustAspectRatio;
case kFeatureAutoComputeDirtyRects:
return _modeFlags & DF_WANT_RECT_OPTIM;
default:
return false;
}
}
void OSystem_GP2X::quit() {
unloadGFXMode();
deleteMutex(_graphicsMutex);
if (_joystick)
SDL_JoystickClose(_joystick);
//CloseRam();
GP2X_device_deinit();
SDL_RemoveTimer(_timerID);
SDL_CloseAudio();
free(_dirtyChecksums);
free(_currentPalette);
free(_cursorPalette);
free(_mouseData);
delete _savefile;
delete _mixer;
delete _timer;
SDL_Quit();
delete getEventManager();
exit(0);
}
OSystem::MutexRef OSystem_GP2X::createMutex(void) {
return (MutexRef) SDL_CreateMutex();
}
void OSystem_GP2X::lockMutex(MutexRef mutex) {
SDL_mutexP((SDL_mutex *) mutex);
}
void OSystem_GP2X::unlockMutex(MutexRef mutex) {
SDL_mutexV((SDL_mutex *) mutex);
}
void OSystem_GP2X::deleteMutex(MutexRef mutex) {
SDL_DestroyMutex((SDL_mutex *) mutex);
}
#pragma mark -
#pragma mark --- Audio ---
#pragma mark -
void OSystem_GP2X::mixCallback(void *sys, byte *samples, int len) {
OSystem_GP2X *this_ = (OSystem_GP2X *)sys;
assert(this_);
if (this_->_mixer)
this_->_mixer->mixCallback(samples, len);
}
void OSystem_GP2X::setupMixer() {
SDL_AudioSpec desired;
SDL_AudioSpec obtained;
//memset(&desired, 0, sizeof(desired));
// Determine the desired output sampling frequency.
_samplesPerSec = 0;
if (ConfMan.hasKey("output_rate"))
_samplesPerSec = ConfMan.getInt("output_rate");
if (_samplesPerSec <= 0)
_samplesPerSec = SAMPLES_PER_SEC;
//Quick EVIL Hack - DJWillis
_samplesPerSec = 11025;
// Determine the sample buffer size. We want it to store enough data for
// about 1/16th of a second. Note that it must be a power of two.
// So e.g. at 22050 Hz, we request a sample buffer size of 2048.
int samples = 8192;
while (16 * samples >= _samplesPerSec) {
samples >>= 1;
}
memset(&desired, 0, sizeof(desired));
desired.freq = _samplesPerSec;
desired.format = AUDIO_S16SYS;
desired.channels = 2;
//desired.samples = (uint16)samples;
desired.samples = 128; // Samples hack
desired.callback = mixCallback;
desired.userdata = this;
// Create the mixer instance
assert(!_mixer);
_mixer = new Audio::MixerImpl(this);
assert(_mixer);
if (SDL_OpenAudio(&desired, &obtained) != 0) {
warning("Could not open audio device: %s", SDL_GetError());
_samplesPerSec = 0;
_mixer->setReady(false);
} else {
// Note: This should be the obtained output rate, but it seems that at
// least on some platforms SDL will lie and claim it did get the rate
// even if it didn't. Probably only happens for "weird" rates, though.
_samplesPerSec = obtained.freq;
debug(1, "Output sample rate: %d Hz", _samplesPerSec);
// Tell the mixer that we are ready and start the sound processing
_mixer->setOutputRate(_samplesPerSec);
_mixer->setReady(true);
SDL_PauseAudio(0);
}
}
Audio::Mixer *OSystem_GP2X::getMixer() {
assert(_mixer);
return _mixer;
}
#pragma mark -
#pragma mark --- CD Audio ---
#pragma mark -
bool OSystem_GP2X::openCD(int drive) {
return (_cdrom = NULL);
}
void OSystem_GP2X::stopCD() {
}
void OSystem_GP2X::playCD(int track, int num_loops, int start_frame, int duration) {
return;
}
bool OSystem_GP2X::pollCD() {
return false;
}
void OSystem_GP2X::updateCD() {
return;
}
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