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
|
/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001-2004 The ScummVM project
*
* 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.
*
* $Header$
*
*/
#include "backends/sdl/sdl-common.h"
#include "common/config-manager.h"
#include "common/util.h"
#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#include "scummvm.xpm"
OSystem *OSystem_SDL_create() {
return new OSystem_SDL();
}
void OSystem_SDL::initIntern() {
int joystick_num = ConfMan.getInt("joystick_num");
uint32 sdlFlags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
#ifdef _WIN32_WCE
if (ConfMan.hasKey("use_GDI") && ConfMan.getBool("use_GDI")) {
SDL_VideoInit("windib", 0);
sdlFlags ^= SDL_INIT_VIDEO;
}
#endif
if (joystick_num > -1)
sdlFlags |= SDL_INIT_JOYSTICK;
if (SDL_Init(sdlFlags) == -1) {
error("Could not initialize SDL: %s", SDL_GetError());
}
_graphicsMutex = createMutex();
SDL_ShowCursor(SDL_DISABLE);
// Enable unicode support if possible
SDL_EnableUNICODE(1);
_cksumValid = false;
#ifndef _WIN32_WCE
_mode = GFX_DOUBLESIZE;
_scaleFactor = 2;
_scalerProc = Normal2x;
_fullscreen = ConfMan.getBool("fullscreen");
_adjustAspectRatio = ConfMan.getBool("aspect_ratio");
#else
_mode = GFX_NORMAL;
_scaleFactor = 1;
_scalerProc = Normal1x;
_fullscreen = true;
_adjustAspectRatio = false;
#endif
_scalerType = 0;
_modeFlags = 0;
#ifndef MACOSX // Don't set icon on OS X, as we use a nicer external icon there
// Setup the icon
setupIcon();
#endif
// enable joystick
if (joystick_num > -1 && SDL_NumJoysticks() > 0) {
printf("Using joystick: %s\n", SDL_JoystickName(0));
_joystick = SDL_JoystickOpen(joystick_num);
}
}
OSystem_SDL::OSystem_SDL()
:
#ifdef USE_OSD
_osdSurface(0), _osdAlpha(SDL_ALPHA_TRANSPARENT), _osdFadeStartTime(0),
#endif
_hwscreen(0), _screen(0), _screenWidth(0), _screenHeight(0),
_tmpscreen(0), _overlayVisible(false),
_samplesPerSec(0),
_cdrom(0), _scalerProc(0), _modeChanged(false), _dirtyChecksums(0),
_mouseVisible(false), _mouseDrawn(false), _mouseData(0),
_mouseHotspotX(0), _mouseHotspotY(0),
_joystick(0),
_currentShakePos(0), _newShakePos(0),
_paletteDirtyStart(0), _paletteDirtyEnd(0),
_graphicsMutex(0), _transactionMode(kTransactionNone) {
// allocate palette storage
_currentPalette = (SDL_Color *)calloc(sizeof(SDL_Color), 256);
// allocate the dirty rect storage
_mouseBackup = (byte *)malloc(MAX_MOUSE_W * MAX_MOUSE_H * MAX_SCALING * 2);
// reset mouse state
memset(&_km, 0, sizeof(_km));
memset(&_mouseCurState, 0, sizeof(_mouseCurState));
initIntern();
}
OSystem_SDL::~OSystem_SDL() {
free(_dirtyChecksums);
free(_currentPalette);
free(_mouseBackup);
free(_mouseData);
}
uint32 OSystem_SDL::getMillis() {
return SDL_GetTicks();
}
void OSystem_SDL::delayMillis(uint msecs) {
SDL_Delay(msecs);
}
void OSystem_SDL::setTimerCallback(TimerProc callback, int timer) {
SDL_SetTimer(timer, (SDL_TimerCallback) callback);
}
void OSystem_SDL::setWindowCaption(const char *caption) {
SDL_WM_SetCaption(caption, caption);
}
bool OSystem_SDL::hasFeature(Feature f) {
return
(f == kFeatureFullscreenMode) ||
(f == kFeatureAspectRatioCorrection) ||
(f == kFeatureAutoComputeDirtyRects);
}
void OSystem_SDL::setFeatureState(Feature f, bool enable) {
switch (f) {
case kFeatureFullscreenMode:
setFullscreenMode(enable);
break;
case kFeatureAspectRatioCorrection:
setAspectRatioCorrection(enable);
break;
case kFeatureAutoComputeDirtyRects:
if (enable)
_modeFlags |= DF_WANT_RECT_OPTIM;
else
_modeFlags &= ~DF_WANT_RECT_OPTIM;
break;
default:
break;
}
}
bool OSystem_SDL::getFeatureState(Feature f) {
assert (_transactionMode != kTransactionNone);
switch (f) {
case kFeatureFullscreenMode:
return _fullscreen;
case kFeatureAspectRatioCorrection:
return _adjustAspectRatio;
case kFeatureAutoComputeDirtyRects:
return _modeFlags & DF_WANT_RECT_OPTIM;
default:
return false;
}
}
void OSystem_SDL::quit() {
if (_cdrom) {
SDL_CDStop(_cdrom);
SDL_CDClose(_cdrom);
}
unloadGFXMode();
deleteMutex(_graphicsMutex);
if (_joystick)
SDL_JoystickClose(_joystick);
SDL_ShowCursor(SDL_ENABLE);
SDL_Quit();
exit(0);
}
void OSystem_SDL::setupIcon() {
int w, h, ncols, nbytes, i;
unsigned int rgba[256], icon[32 * 32];
unsigned char mask[32][4];
sscanf(scummvm_icon[0], "%d %d %d %d", &w, &h, &ncols, &nbytes);
if ((w != 32) || (h != 32) || (ncols > 255) || (nbytes > 1)) {
warning("Could not load the icon (%d %d %d %d)", w, h, ncols, nbytes);
return;
}
for (i = 0; i < ncols; i++) {
unsigned char code;
char color[32];
unsigned int col;
sscanf(scummvm_icon[1 + i], "%c c %s", &code, color);
if (!strcmp(color, "None"))
col = 0x00000000;
else if (!strcmp(color, "black"))
col = 0xFF000000;
else if (color[0] == '#') {
sscanf(color + 1, "%06x", &col);
col |= 0xFF000000;
} else {
warning("Could not load the icon (%d %s - %s) ", code, color, scummvm_icon[1 + i]);
return;
}
rgba[code] = col;
}
memset(mask, 0, sizeof(mask));
for (h = 0; h < 32; h++) {
const char *line = scummvm_icon[1 + ncols + h];
for (w = 0; w < 32; w++) {
icon[w + 32 * h] = rgba[(int)line[w]];
if (rgba[(int)line[w]] & 0xFF000000) {
mask[h][w >> 3] |= 1 << (7 - (w & 0x07));
}
}
}
SDL_Surface *sdl_surf = SDL_CreateRGBSurfaceFrom(icon, 32, 32, 32, 32 * 4, 0xFF0000, 0x00FF00, 0x0000FF, 0xFF000000);
SDL_WM_SetIcon(sdl_surf, (unsigned char *) mask);
SDL_FreeSurface(sdl_surf);
}
OSystem::MutexRef OSystem_SDL::createMutex(void) {
return (MutexRef) SDL_CreateMutex();
}
void OSystem_SDL::lockMutex(MutexRef mutex) {
SDL_mutexP((SDL_mutex *) mutex);
}
void OSystem_SDL::unlockMutex(MutexRef mutex) {
SDL_mutexV((SDL_mutex *) mutex);
}
void OSystem_SDL::deleteMutex(MutexRef mutex) {
SDL_DestroyMutex((SDL_mutex *) mutex);
}
#pragma mark -
#pragma mark --- Audio ---
#pragma mark -
bool OSystem_SDL::setSoundCallback(SoundProc proc, void *param) {
SDL_AudioSpec desired;
SDL_AudioSpec obtained;
memset(&desired, 0, sizeof(desired));
if (ConfMan.hasKey("output_rate"))
_samplesPerSec = ConfMan.getInt("output_rate");
else
_samplesPerSec = SAMPLES_PER_SEC;
// Originally, we always used 2048 samples. This loop will produce the
// same result at 22050 Hz, and should hopefully produce something
// sensible for other frequencies. Note that it must be a power of two.
uint16 samples = 0x8000;
for (;;) {
if (samples / (_samplesPerSec / 1000) < 100)
break;
samples >>= 1;
}
desired.freq = _samplesPerSec;
desired.format = AUDIO_S16SYS;
desired.channels = 2;
desired.samples = samples;
desired.callback = proc;
desired.userdata = param;
if (SDL_OpenAudio(&desired, &obtained) != 0) {
return false;
}
// 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;
SDL_PauseAudio(0);
return true;
}
void OSystem_SDL::clearSoundCallback() {
SDL_CloseAudio();
}
int OSystem_SDL::getOutputSampleRate() const {
return _samplesPerSec;
}
#pragma mark -
#pragma mark --- CD Audio ---
#pragma mark -
bool OSystem_SDL::openCD(int drive) {
if (SDL_InitSubSystem(SDL_INIT_CDROM) == -1)
_cdrom = NULL;
else {
_cdrom = SDL_CDOpen(drive);
// Did it open? Check if _cdrom is NULL
if (!_cdrom) {
warning("Couldn't open drive: %s", SDL_GetError());
} else {
_cdNumLoops = 0;
_cdStopTime = 0;
_cdEndTime = 0;
}
}
return (_cdrom != NULL);
}
void OSystem_SDL::stopCD() { /* Stop CD Audio in 1/10th of a second */
_cdStopTime = SDL_GetTicks() + 100;
_cdNumLoops = 0;
}
void OSystem_SDL::playCD(int track, int num_loops, int start_frame, int duration) {
if (!num_loops && !start_frame)
return;
if (!_cdrom)
return;
if (duration > 0)
duration += 5;
_cdTrack = track;
_cdNumLoops = num_loops;
_cdStartFrame = start_frame;
SDL_CDStatus(_cdrom);
if (start_frame == 0 && duration == 0)
SDL_CDPlayTracks(_cdrom, track, 0, 1, 0);
else
SDL_CDPlayTracks(_cdrom, track, start_frame, 0, duration);
_cdDuration = duration;
_cdStopTime = 0;
_cdEndTime = SDL_GetTicks() + _cdrom->track[track].length * 1000 / CD_FPS;
}
bool OSystem_SDL::pollCD() {
if (!_cdrom)
return false;
return (_cdNumLoops != 0 && (SDL_GetTicks() < _cdEndTime || SDL_CDStatus(_cdrom) != CD_STOPPED));
}
void OSystem_SDL::updateCD() {
if (!_cdrom)
return;
if (_cdStopTime != 0 && SDL_GetTicks() >= _cdStopTime) {
SDL_CDStop(_cdrom);
_cdNumLoops = 0;
_cdStopTime = 0;
return;
}
if (_cdNumLoops == 0 || SDL_GetTicks() < _cdEndTime)
return;
if (_cdNumLoops != 1 && SDL_CDStatus(_cdrom) != CD_STOPPED) {
// Wait another second for it to be done
_cdEndTime += 1000;
return;
}
if (_cdNumLoops > 0)
_cdNumLoops--;
if (_cdNumLoops != 0) {
if (_cdStartFrame == 0 && _cdDuration == 0)
SDL_CDPlayTracks(_cdrom, _cdTrack, 0, 1, 0);
else
SDL_CDPlayTracks(_cdrom, _cdTrack, _cdStartFrame, 0, _cdDuration);
_cdEndTime = SDL_GetTicks() + _cdrom->track[_cdTrack].length * 1000 / CD_FPS;
}
}
|