1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
|
/* 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/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 "sound/mixer.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <limits.h>
#include <errno.h>
#include <sys/stat.h>
#include <time.h>
// Disable for normal serial logging.
#define DUMP_STDOUT
#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#define SAMPLES_PER_SEC 11025
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();
assert(g_system);
// 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;
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);
// 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();
}
// Create and hook up the mixer, if none exists yet (we check for this to
// allow subclasses to provide their own).
if (_mixer == 0) {
_mixer = new Audio::Mixer();
setSoundCallback(Audio::Mixer::mixCallback, _mixer);
}
// 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;
}
//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_Quit();
//chdir("/usr/gp2x");
//execl("/usr/gp2x/gp2xmenu", "/usr/gp2x/gp2xmenu", NULL);
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 -
bool OSystem_GP2X::setSoundCallback(SoundProc proc, void *param) {
SDL_AudioSpec desired;
SDL_AudioSpec obtained;
memset(&desired, 0, sizeof(desired));
_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;
desired.freq = _samplesPerSec;
desired.format = AUDIO_S16SYS;
desired.channels = 2;
//desired.samples = (uint16)samples;
desired.samples = 128; // Samples hack
desired.callback = proc;
desired.userdata = param;
if (SDL_OpenAudio(&desired, &obtained) != 0) {
warning("Could not open audio device: %s", SDL_GetError());
return false;
}
_samplesPerSec = obtained.freq;
SDL_PauseAudio(0);
return true;
}
void OSystem_GP2X::clearSoundCallback() {
SDL_CloseAudio();
}
int OSystem_GP2X::getOutputSampleRate() const {
return _samplesPerSec;
}
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;
}
|