/* 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: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-1-1-1/engines/sky/sound.cpp $
 * $Id: sound.cpp 47716 2010-01-30 15:26:54Z lordhoto $
 *
 */


#include "common/endian.h"

#include "sky/disk.h"
#include "sky/logic.h"
#include "sky/sky.h"
#include "sky/skydefs.h"
#include "sky/sound.h"
#include "sky/struc.h"

#include "sound/audiostream.h"
#include "sound/decoders/raw.h"

namespace Sky {

#define SOUND_FILE_BASE 60203
#define MAX_FX_NUMBER 393
#define SFXF_START_DELAY 0x80
#define SFXF_SAVE 0x20

#include "common/pack-start.h"	// START STRUCT PACKING

struct RoomList {
	uint8 room;
	uint8 adlibVolume;
	uint8 rolandVolume;
} PACKED_STRUCT;

struct Sfx {
	uint8 soundNo;
	uint8 flags;
	RoomList roomList[10];
} PACKED_STRUCT;

#include "common/pack-end.h"	// END STRUCT PACKING

uint16 Sound::_speechConvertTable[8] = {
	0,									//;Text numbers to file numbers
	600,								//; 553 lines in section 0
	600+500,							//; 488 lines in section 1
	600+500+1330,						//;1303 lines in section 2
	600+500+1330+950,					//; 922 lines in section 3
	600+500+1330+950+1150,				//;1140 lines in section 4
	600+500+1330+950+1150+550,			//; 531 lines in section 5
	600+500+1330+950+1150+550+150,		//; 150 lines in section 6
};


static const Sfx fx_null = {
	0,
	0,
	{
		{ 200,127,127 },
		{ 255,0,0 }
	}
};

static const Sfx fx_level_3_ping = {
	1,
	0,
	{
		{ 28,63,63 },
		{ 29,63,63 },
		{ 31,63,63 },
		{ 255,0,0 },
	}
};

static const Sfx fx_factory_sound = {
	1,
	SFXF_SAVE,
	{
		{ 255,30,30 },
	}
};

static const Sfx fx_crowbar_plaster = {
	1,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_masonry_fall = {
	1,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_prise_brick = {
	2,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_rope_creak = {
	2,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_ping = {
	3,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_force_fire_door = {
	3,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_brick_hit_foster = {
	3,
	10+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_brick_hit_plank = {
	3,
	8+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_rm3_lift_moving = {
	4,
	SFXF_SAVE,
	{
		{ 3,127,127 },
		{ 2,127,127 },
		{ 255,0,0 },
	}
};

static const Sfx fx_weld = {
	4,
	0,
	{
		{ 15,127,127 },
		{ 7,127,127 },
		{ 6,60,60 },
		{ 12,60,60 },
		{ 13,60,60 },
		{ 255,0,0 },
	}
};

static const Sfx fx_weld12 = {
	4,
	0,
	{
		{ 12,127,127 },
		{ 255,0,0 },
	}
};

static const Sfx fx_spray_on_skin = {
	4,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_plank_vibrating = {
	4,
	6+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_press_bang = {
	5,
	0,
	{
		{ 0,50,100 },
		{ 255,0,0 },
	}
};

static const Sfx fx_spanner_clunk = {
	5,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_break_crystals = {
	5,
	0,
	{
		{ 96,127,127 },
		{ 255,0,0 },
	}
};

static const Sfx fx_press_hiss = {
	6,
	0,
	{
		{ 0,40,40 },
		{ 255,0,0 },
	}
};

static const Sfx fx_open_door = {
	6,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_open_lamb_door = {
	6,
	0,
	{
		{ 20,127,127 },
		{ 21,127,127 },
		{ 255,0,0 },
	}
};

static const Sfx fx_splash = {
	6,
	22+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_disintegrate = {
	7,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_buzzer = {
	7,
	4+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_lathe = {
	7,
	SFXF_SAVE,
	{
		{ 4,60,60 },
		{ 2,20,20 },
		{ 255,0,0 },
	}
};

static const Sfx fx_hit_crowbar_brick = {
	7,
	9+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_hello_helga = {
	8,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_statue_on_armour = {
	8,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_lift_alarm = {
	8,
	SFXF_SAVE,
	{
		{ 2,63,63 },
		{ 255,0,0 },
	}
};

static const Sfx fx_drop_crowbar = {
	8,
	5+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_byee_helga = {
	9,
	3+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_shed_door_creak = {
	10,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_explosion = {
	10,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_fire_crackle_in_pit = {
	 9,
	SFXF_SAVE,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_remove_bar_grill = {
	10,
	7+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_grill_creak = {
	10,
	43+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_steam1 = {
	11,
	SFXF_SAVE,
	{
		{ 18,20,20 },
		{ 255,0,0 },
	}
};

static const Sfx fx_steam2 = {
	11,
	SFXF_SAVE,
	{
		{ 18,63,63 },
		{ 255,0,0 },
	}
};

static const Sfx fx_steam3 = {
	11,
	SFXF_SAVE,
	{
		{ 18,127,127 },
		{ 255,0,0 },
	}
};

static const Sfx fx_crowbar_wooden = {
	11,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_helmet_down_3 = {
	11,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_guard_fall = {
	11,
	4,
	{
		{ 255,127,127 },
	}
};

#if 0
static const Sfx fx_furnace = {
	11,
	0,
	{
		{ 3,90,90 },
		{ 255,0,0 },
	}
};
#endif

static const Sfx fx_fall_thru_box = {
	12,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_lazer = {
	12,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_scanner = {
	12,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_helmet_up_3 = {
	12,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_liquid_bubble = {
	12,
	SFXF_SAVE,
	{
		{ 80,127,127 },
		{ 72,127,127 },
		{ 255,0,0 },
	}
};

static const Sfx fx_liquid_drip = {
	13,
	6+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_goo_drip = {
	13,
	5+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_comp_bleeps = {
	13,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_use_crowbar_grill = {
	13,
	34+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_helmet_grind = {
	14,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_lift_moving = {
	14,
	SFXF_SAVE,
	{
		{ 7,127,127 },
		{ 29,127,127 },
		{ 255,0,0 },
	}
};

static const Sfx fx_use_secateurs = {
	14,
	18+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_hit_joey1 = {
	14,
	7+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_hit_joey2 = {
	14,
	13+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_dani_phone_ring = {
	15,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_sc74_pod_down = {
	15,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_phone = {
	15,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_25_weld = {
	15,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_lift_open_7 = {
	15,
	0,
	{
		{ 7,127,127 },
		{ 255,0,0 },
	}
};

static const Sfx fx_lift_close_7 = {
	16,
	0,
	{
		{ 7,127,127 },
		{ 255,0,0 },
	}
};

static const Sfx fx_s2_helmet = {
	16,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_hiss_in_nitrogen = {
	16,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_dog_yap_indoors = {
	16,
	0,
	{
		{ 38,127,127 },
		{ 255,0,0 },
	}
};

static const Sfx fx_dog_yap_outdoors = {
	16,
	0,
	{
		{ 31,127,127 },
		{ 30,40,40 },
		{ 32,40,40 },
		{ 33,40,40 },
		{ 255,0,0 },
	}
};

static const Sfx fx_locker_creak_open = {
	17,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_big_tent_gurgle = {
	17,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_wind_howl = {
	17,
	SFXF_SAVE,
	{
		{ 1,127,127 },
		{ 255,0,0 },
	}
};

static const Sfx fx_lift_open_29 = {
	17,
	0,
	{
		{ 29,127,127 },
		{ 255,0,0 },
	}
};

static const Sfx fx_lift_arrive_7 = {
	17,
	0,
	{
		{ 7,63,63 },
		{ 255,0,0 },
	}
};

static const Sfx fx_lift_close_29 = {
	18,
	0,
	{
		{ 29,127,127 },
		{ 28,127,127 },
		{ 255,0,0 },
	}
};

static const Sfx fx_shaft_industrial_noise = {
	18,
	SFXF_SAVE,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_gall_drop = {
	18,
	29+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_door_slam_under = {
	19,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_reichs_fish = {
	19,
	SFXF_SAVE,
	{
		{ 255,60,60 },
	}
};

static const Sfx fx_judges_gavel1 = {
	19,
	13+SFXF_START_DELAY,
	{
		{ 255,60,60 },
	}
};

static const Sfx fx_judges_gavel2 = {
	19,
	16+SFXF_START_DELAY,
	{
		{ 255,90,90 },
	}
};

static const Sfx fx_judges_gavel3 = {
	19,
	19+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_wind_3 = {
	20,
	SFXF_SAVE,
	{
		{ 255,60,60 },
	}
};

static const Sfx fx_fact_sensor = {
	20,
	SFXF_SAVE,
	{
		{ 255,60,60 },
	}
};

static const Sfx fx_medi_stab_gall = {
	20,
	17+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_computer_3 = {
	21,
	SFXF_SAVE,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_timber_cracking = {
	21,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_anchor_fall = {
	22,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_elevator_4 = {
	22,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_star_trek_2 = {
	22,
	SFXF_SAVE,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_lift_closing = {
	23,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_heartbeat = {
	23,
	11+SFXF_START_DELAY,
	{
		{ 67,60,60 },
		{ 68,60,60 },
		{ 69,60,60 },
		{ 77,20,20 },
		{ 78,50,50 },
		{ 79,70,70 },
		{ 80,127,127 },
		{ 81,60,60 },
		{ 255,0,0 },
	}
};

static const Sfx fx_pos_key = {
	25,
	2+SFXF_START_DELAY,
	{
		{ 255,127,127 },
	}
};

static const Sfx fx_neg_key = {
	26,
	2+SFXF_START_DELAY,
	{
		{ 255,100,100 },
	}
};

static const Sfx fx_orifice_swallow_drip = {
	28,
	0,
	{
		{ 255,127,127 },
	}
};

static const Sfx *musicList[] = {
	&fx_press_bang, // 256 banging of the press
	&fx_press_hiss, // 257 hissing press
	&fx_wind_howl, // 258 howling wind
	&fx_spanner_clunk, // 259 spanner in works
	&fx_reichs_fish, // 260 Reichs fish
	&fx_explosion, // 261 panel blows open
	&fx_wind_3, // 262 single steam
	&fx_open_door, // 263 general open door
	&fx_open_lamb_door, // 264 lamb door opens
	&fx_comp_bleeps, // 265 scanner bleeps
	&fx_helmet_down_3, // 266
	&fx_helmet_up_3, // 267
	&fx_helmet_grind, // 268
	&fx_lift_close_29, // 269 rm 29 lift closes
	&fx_lift_open_29, // 270 rm 29 lift opens
	&fx_computer_3, // 271 rm 29 lift arrives
	&fx_level_3_ping, // 272 background noise in room 4
	&fx_lift_alarm, // 273 loader alarm
	&fx_null, // 274 furnace room background noise
	&fx_rm3_lift_moving, // 275 lift moving in room 3
	&fx_lathe, // 276 jobsworth lathe
	&fx_factory_sound, // 277 factory background sound
	&fx_weld, // 278 do some welding
	&fx_lift_close_7, // 279 rm 7 lift closes
	&fx_lift_open_7, // 280 rm 7 lift opens
	&fx_lift_arrive_7, // 281 rm 7 lift arrives
	&fx_lift_moving, // 282 lift moving
	&fx_scanner, // 283 scanner operating
	&fx_force_fire_door, // 284 Force fire door open
	&fx_null, // 285 General door creak
	&fx_phone, // 286 telephone
	&fx_lazer, // 287 lazer
	&fx_lazer, // 288 lazer
	&fx_anchor_fall, // 289 electric   ;not used on amiga
	&fx_weld12, // 290 welding in room 12 (not joey)
	&fx_hello_helga, // 291 helga appears
	&fx_byee_helga, // 292 helga disapears
	&fx_null, // 293 smash through window               ;doesn't exist
	&fx_pos_key, // 294
	&fx_neg_key, // 295
	&fx_s2_helmet, // 296 ;helmet down section 2
	&fx_s2_helmet, // 297 ;  "      up    "    "
	&fx_lift_arrive_7, // 298 ;security door room 7
	&fx_null, // 299
	&fx_rope_creak, // 300
	&fx_crowbar_wooden, // 301
	&fx_fall_thru_box, // 302
	&fx_use_crowbar_grill, // 303
	&fx_use_secateurs, // 304
	&fx_grill_creak, // 305
	&fx_timber_cracking, // 306
	&fx_masonry_fall, // 307
	&fx_masonry_fall, // 308
	&fx_crowbar_plaster, // 309
	&fx_prise_brick, // 310
	&fx_brick_hit_foster, // 311
	&fx_spray_on_skin, // 312
	&fx_hit_crowbar_brick, // 313
	&fx_drop_crowbar, // 314
	&fx_fire_crackle_in_pit, // 315
	&fx_remove_bar_grill, // 316
	&fx_liquid_bubble, // 317
	&fx_liquid_drip, // 318
	&fx_guard_fall, // 319
	&fx_sc74_pod_down, // 320
	&fx_hiss_in_nitrogen, // 321
	&fx_null, // 322
	&fx_hit_joey1, // 323
	&fx_hit_joey2, // 324
	&fx_medi_stab_gall, // 325
	&fx_gall_drop, // 326
	&fx_null, // 327
	&fx_null, // 328
	&fx_null, // 329
	&fx_big_tent_gurgle, // 330
	&fx_null, // 331
	&fx_orifice_swallow_drip, // 332
	&fx_brick_hit_plank, // 333
	&fx_goo_drip, // 334
	&fx_plank_vibrating, // 335
	&fx_splash, // 336
	&fx_buzzer, // 337
	&fx_shed_door_creak, // 338
	&fx_dog_yap_outdoors, // 339
	&fx_dani_phone_ring, // 340
	&fx_locker_creak_open, // 341
	&fx_judges_gavel1, // 342
	&fx_dog_yap_indoors, // 343
	&fx_brick_hit_plank, // 344
	&fx_brick_hit_plank, // 345
	&fx_shaft_industrial_noise, // 346
	&fx_judges_gavel2, // 347
	&fx_judges_gavel3, // 348
	&fx_elevator_4, // 349
	&fx_lift_closing, // 350
	&fx_null, // 351
	&fx_null, // 352
	&fx_sc74_pod_down, // 353
	&fx_null, // 354
	&fx_null, // 355
	&fx_heartbeat, // 356
	&fx_star_trek_2, // 357
	&fx_null, // 358
	&fx_null, // 359
	&fx_null, // 350
	&fx_null, // 361
	&fx_null, // 362
	&fx_null, // 363
	&fx_null, // 364
	&fx_null, // 365
	&fx_break_crystals, // 366
	&fx_disintegrate, // 367
	&fx_statue_on_armour, // 368
	&fx_null, // 369
	&fx_null, // 360
	&fx_ping, // 371
	&fx_null, // 372
	&fx_door_slam_under, // 373
	&fx_null, // 374
	&fx_null, // 375
	&fx_null, // 376
	&fx_null, // 377
	&fx_null, // 378
	&fx_null, // 379
	&fx_steam1, // 380
	&fx_steam2, // 381
	&fx_steam2, // 382
	&fx_steam3, // 383
	&fx_null, // 384
	&fx_null, // 385
	&fx_fact_sensor, // 386            Sensor in Potts' room
	&fx_null, // 387
	&fx_null, // 388
	&fx_null, // 389
	&fx_null, // 390
	&fx_null, // 391
	&fx_null, // 392
	&fx_null, // 393
	&fx_25_weld // 394            my anchor weld bodge
};

SfxQueue Sound::_sfxQueue[MAX_QUEUED_FX] = {
	{ 0, 0, 0, 0},
	{ 0, 0, 0, 0},
	{ 0, 0, 0, 0},
	{ 0, 0, 0, 0}
};

Sound::Sound(Audio::Mixer *mixer, Disk *pDisk, uint8 pVolume) {
	_skyDisk = pDisk;
	_soundData = NULL;
	_mixer = mixer;
	_saveSounds[0] = _saveSounds[1] = 0xFFFF;
	_mainSfxVolume = pVolume;
	_isPaused = false;
}

Sound::~Sound() {
	_mixer->stopAll();
	free(_soundData);
}

void Sound::playSound(uint32 id, byte *sound, uint32 size, Audio::SoundHandle *handle) {
	byte flags = 0;
	flags |= Audio::FLAG_UNSIGNED;
	size -= sizeof(DataFileHeader);
	byte *buffer = (byte *)malloc(size);
	memcpy(buffer, sound+sizeof(DataFileHeader), size);

	_mixer->stopID(id);

	Audio::AudioStream *stream = Audio::makeRawStream(buffer, size, 11025, flags);
	_mixer->playInputStream(Audio::Mixer::kSFXSoundType, handle, stream, id);
}

void Sound::loadSection(uint8 pSection) {
	fnStopFx();
	_mixer->stopAll();

	free(_soundData);
	_soundData = _skyDisk->loadFile(pSection * 4 + SOUND_FILE_BASE);
	uint16 asmOfs;
	if (SkyEngine::_systemVars.gameVersion == 109) {
		if (pSection == 0)
			asmOfs = 0x78;
		else
			asmOfs = 0x7C;
	} else
		asmOfs = 0x7E;

	if ((_soundData[asmOfs] != 0x3C) || (_soundData[asmOfs + 0x27] != 0x8D) ||
		(_soundData[asmOfs + 0x28] != 0x1E) || (_soundData[asmOfs + 0x2F] != 0x8D) ||
		(_soundData[asmOfs + 0x30] != 0x36))
			error("Unknown sounddriver version");

	_soundsTotal = _soundData[asmOfs + 1];
	uint16 sRateTabOfs = READ_LE_UINT16(_soundData + asmOfs + 0x29);
	_sfxBaseOfs = READ_LE_UINT16(_soundData + asmOfs + 0x31);
	_sampleRates = _soundData + sRateTabOfs;

	_sfxInfo = _soundData + _sfxBaseOfs;
	// if we just restored a savegame, the sfxqueue holds the sound we need to restart
	if (!(SkyEngine::_systemVars.systemFlags & SF_GAME_RESTORED))
		for (uint8 cnt = 0; cnt < 4; cnt++)
			_sfxQueue[cnt].count = 0;
}

void Sound::playSound(uint16 sound, uint16 volume, uint8 channel) {
	if (channel == 0)
		_mixer->stopID(SOUND_CH0);
	else
		_mixer->stopID(SOUND_CH1);

	if (!_soundData) {
		warning("Sound::playSound(%04X, %04X) called with a section having been loaded", sound, volume);
		return;
	}

	if (sound > _soundsTotal) {
		debug(5, "Sound::playSound %d ignored, only %d sfx in file", sound, _soundsTotal);
		return;
	}

	volume = (volume & 0x7F) << 1;
	sound &= 0xFF;

	// Note: All those tables are big endian. Don't ask me why. *sigh*

	// Use the sample rate from game data, see bug #1507757.
	uint16 sampleRate = READ_BE_UINT16(_sampleRates + (sound << 2));
	if (sampleRate > 11025)
		sampleRate = 11025;
	uint32 dataOfs  = READ_BE_UINT16(_sfxInfo + (sound << 3) + 0) << 4;
	uint32 dataSize = READ_BE_UINT16(_sfxInfo + (sound << 3) + 2);
	uint32 dataLoop = READ_BE_UINT16(_sfxInfo + (sound << 3) + 6);
	dataOfs += _sfxBaseOfs;

	Audio::SeekableAudioStream *stream = Audio::makeRawStream(_soundData + dataOfs, dataSize, sampleRate,
	                                                                Audio::FLAG_UNSIGNED, DisposeAfterUse::NO);

	Audio::AudioStream *output = 0;
	if (dataLoop) {
		uint32 loopSta = dataSize - dataLoop;
		uint32 loopEnd = dataSize;

		output = Audio::makeLoopingAudioStream(stream, Audio::Timestamp(0, loopSta, sampleRate),
		                                       Audio::Timestamp(0, loopEnd, sampleRate), 0);
	} else {
		output = stream;
	}

	if (channel == 0)
		_mixer->playInputStream(Audio::Mixer::kSFXSoundType, &_ingameSound0, output, SOUND_CH0, volume, 0);
	else
		_mixer->playInputStream(Audio::Mixer::kSFXSoundType, &_ingameSound1, output, SOUND_CH1, volume, 0);
}

void Sound::fnStartFx(uint32 sound, uint8 channel) {
	_saveSounds[channel] = 0xFFFF;
	if (sound < 256 || sound > MAX_FX_NUMBER || (SkyEngine::_systemVars.systemFlags & SF_FX_OFF))
		return;

	uint8 screen = (uint8)(Logic::_scriptVariables[SCREEN] & 0xff);
	if (sound == 278 && screen == 25) // is this weld in room 25
		sound= 394;

	sound &= ~(1 << 8);

	const Sfx *sfx = musicList[sound];
	const RoomList *roomList = sfx->roomList;

	int i = 0;
	if (roomList[i].room != 0xff) // if room list empty then do all rooms
		while (roomList[i].room != screen) { // check rooms
			i++;
			if (roomList[i].room == 0xff)
				return;
		}

	// get fx volume

	uint8 volume = _mainSfxVolume; // start with standard vol

	if (SkyEngine::_systemVars.systemFlags & SF_SBLASTER)
		volume = roomList[i].adlibVolume;
	else if (SkyEngine::_systemVars.systemFlags & SF_ROLAND)
		volume = roomList[i].rolandVolume;
	volume = (volume * _mainSfxVolume) >> 8;

	// Check the flags, the sound may come on after a delay.
	if (sfx->flags & SFXF_START_DELAY) {
		for (uint8 cnt = 0; cnt < MAX_QUEUED_FX; cnt++) {
			if (_sfxQueue[cnt].count == 0) {
				_sfxQueue[cnt].chan = channel;
				_sfxQueue[cnt].fxNo = sfx->soundNo;
				_sfxQueue[cnt].vol = volume;
				_sfxQueue[cnt].count = sfx->flags & 0x7F;
				return;
			}
		}
		return; // ignore sound if it can't be queued
	}

	if (sfx->flags & SFXF_SAVE)
		_saveSounds[channel] = sfx->soundNo | (volume << 8);

	playSound(sfx->soundNo, volume, channel);
}

void Sound::checkFxQueue() {
	for (uint8 cnt = 0; cnt < MAX_QUEUED_FX; cnt++) {
		if (_sfxQueue[cnt].count) {
			_sfxQueue[cnt].count--;
			if (_sfxQueue[cnt].count == 0)
				playSound(_sfxQueue[cnt].fxNo, _sfxQueue[cnt].vol, _sfxQueue[cnt].chan);
		}
	}
}

void Sound::restoreSfx() {
	// queue sfx, so they will be started when the player exits the control panel
	memset(_sfxQueue, 0, sizeof(_sfxQueue));
	uint8 queueSlot = 0;
	if (_saveSounds[0] != 0xFFFF) {
		_sfxQueue[queueSlot].fxNo = (uint8)_saveSounds[0];
		_sfxQueue[queueSlot].vol = (uint8)(_saveSounds[0] >> 8);
		_sfxQueue[queueSlot].chan = 0;
		_sfxQueue[queueSlot].count = 1;
		queueSlot++;
	}
	if (_saveSounds[1] != 0xFFFF) {
		_sfxQueue[queueSlot].fxNo = (uint8)_saveSounds[1];
		_sfxQueue[queueSlot].vol = (uint8)(_saveSounds[1] >> 8);
		_sfxQueue[queueSlot].chan = 1;
		_sfxQueue[queueSlot].count = 1;
	}
}

void Sound::fnStopFx() {
	_mixer->stopID(SOUND_CH0);
	_mixer->stopID(SOUND_CH1);
	_saveSounds[0] = _saveSounds[1] = 0xFFFF;
}

void Sound::stopSpeech() {
	_mixer->stopID(SOUND_SPEECH);
}

bool Sound::startSpeech(uint16 textNum) {
	if (!(SkyEngine::_systemVars.systemFlags & SF_ALLOW_SPEECH))
		return false;
	uint16 speechFileNum = _speechConvertTable[textNum >> 12] + (textNum & 0xFFF);

	uint8 *speechData = _skyDisk->loadFile(speechFileNum + 50000);
	if (!speechData) {
		debug(9,"File %d (speechFile %d from section %d) wasn't found", speechFileNum + 50000, textNum & 0xFFF, textNum >> 12);
		return false;
	}

	uint32 speechSize = ((DataFileHeader *)speechData)->s_tot_size - sizeof(DataFileHeader);
	uint8 *playBuffer = (uint8 *)malloc(speechSize);
	memcpy(playBuffer, speechData + sizeof(DataFileHeader), speechSize);

	free(speechData);

	// Workaround for BASS bug #897775 - some voice-overs are played at
	// half speed in 0.0368 (the freeware CD version), in 0.0372 they sound
	// just fine.

	uint rate;
	if (_skyDisk->determineGameVersion() == 368 && (textNum == 20905 || textNum == 20906))
		rate = 22050;
	else
		rate = 11025;

	_mixer->stopID(SOUND_SPEECH);

	Audio::AudioStream *stream = Audio::makeRawStream(playBuffer, speechSize, rate, Audio::FLAG_UNSIGNED);
	_mixer->playInputStream(Audio::Mixer::kSpeechSoundType, &_ingameSpeech, stream, SOUND_SPEECH);
	return true;
}

void Sound::fnPauseFx() {
	if (!_isPaused) {
		_isPaused = true;
		_mixer->pauseID(SOUND_CH0, true);
		_mixer->pauseID(SOUND_CH1, true);
	}
}

void Sound::fnUnPauseFx() {
	if (_isPaused) {
		_isPaused = false;
		_mixer->pauseID(SOUND_CH0, false);
		_mixer->pauseID(SOUND_CH1, false);
	}
}

} // End of namespace Sky
