*\r
*/\r
\r
+//\r
+// ID Engine\r
+// ID_SD.c - Sound Manager for Wolfenstein 3D\r
+// v1.2w\r
+// By Jason Blochowiak\r
+// Open Watcom port by sparky4\r
+//\r
+\r
+//\r
+// This module handles dealing with generating sound on the appropriate\r
+// hardware\r
+//\r
+// Depends on: User Mgr (for parm checking)\r
+//\r
+// Globals:\r
+// For User Mgr:\r
+// SoundSourcePresent - Sound Source thingie present?\r
+// SoundBlasterPresent - SoundBlaster card present?\r
+// AdLibPresent - AdLib card present?\r
+// SoundMode - What device is used for sound effects\r
+// (Use SM_SetSoundMode() to set)\r
+// MusicMode - What device is used for music\r
+// (Use SM_SetMusicMode() to set)\r
+// DigiMode - What device is used for digitized sound effects\r
+// (Use SM_SetDigiDevice() to set)\r
+//\r
+// For Cache Mgr:\r
+// NeedsDigitized - load digitized sounds?\r
+// NeedsMusic - load music?\r
+//\r
+\r
+#pragma hdrstop // Wierdo thing with MUSE\r
+\r
+#include <dos.h>\r
+\r
+#ifndef _MUSE_ // Will be defined in ID_Types.h\r
#include "src/lib/16_sd.h"\r
+#else\r
+#include "src/lib/16_head.h"\r
+#endif\r
+#pragma hdrstop\r
+#pragma warn -pia\r
+\r
+#define SDL_SoundFinished() {SoundNumber = SoundPriority = 0;}\r
+\r
+// Macros for AdLib stuff\r
+#define selreg(n) outportb(alFMAddr,n)\r
+#define writereg(n) outportb(alFMData,n)\r
+#define readstat() inportb(alFMStatus)\r
+\r
+//#define SD_USECATA3DSETTIMERSPEED\r
+\r
+// Imports from ID_SD_A.ASM\r
+/*extern*/ void SDL_SetDS(void);\r
+/*extern*/ void interrupt SDL_t0ExtremeAsmService(void);//,\r
+// SDL_t0FastAsmService(void),\r
+// SDL_t0SlowAsmService(void);\r
+ void SDL_IndicatePC(boolean on),\r
+ SDL_DigitizedDoneInIRQ();\r
+\r
+// Global variables\r
+ boolean AdLibPresent,\r
+ NeedsDigitized,NeedsMusic,\r
+ SoundPositioned;\r
+ SDMode SoundMode;\r
+ SMMode MusicMode;\r
+ SDSMode DigiMode;\r
+ dword TimeCount;\r
+ word HackCount;\r
+ word *SoundTable; // Really * _seg *SoundTable, but that don't work\r
+ boolean ssIsTandy;\r
+ int DigiMap[LASTSOUND];\r
+\r
+// Internal variables\r
+static boolean SD_Started;\r
+ boolean nextsoundpos;\r
+ word/*boolean_+*/ TimerDone;\r
+ word TimerVal,TimerDelay10,TimerDelay25,TimerDelay100;\r
+ dword TimerDivisor,TimerCount;\r
+static char *ParmStrings[] =\r
+ {\r
+ "noal",\r
+ nil\r
+ };\r
+static void (*SoundUserHook)(void);\r
+ soundnames SoundNumber,DigiNumber;\r
+ word SoundPriority,DigiPriority;\r
+ int LeftPosition,RightPosition;\r
+ void interrupt (*t0OldService)(void);\r
+ long LocalTime;\r
+ word TimerRate;\r
+\r
+ word NumDigi,DigiLeft,DigiPage;\r
+ word _seg *DigiList;\r
+ word DigiLastStart,DigiLastEnd;\r
+ boolean DigiPlaying;\r
+static boolean DigiMissed,DigiLastSegment;\r
+static memptr DigiNextAddr;\r
+static word DigiNextLen;\r
+\r
+// PC Sound variables\r
+ volatile byte pcLastSample,far *pcSound;\r
+ dword pcLengthLeft;\r
+ word pcSoundLookup[255];\r
+\r
+// AdLib variables\r
+ boolean alNoCheck;\r
+ byte far *alSound;\r
+ word alBlock;\r
+ dword alLengthLeft;\r
+ dword alTimeCount;\r
+ Instrument alZeroInst;\r
+\r
+// This table maps channel numbers to carrier and modulator op cells\r
+static byte carriers[9] = { 3, 4, 5,11,12,13,19,20,21},\r
+ modifiers[9] = { 0, 1, 2, 8, 9,10,16,17,18},\r
+// This table maps percussive voice numbers to op cells\r
+ pcarriers[5] = {19,0xff,0xff,0xff,0xff},\r
+ pmodifiers[5] = {16,17,18,20,21};\r
\r
-static void interrupt (*t0OldService)(void);\r
+// Sequencer variables\r
+ boolean sqActive;\r
+static word alFXReg;\r
+static ActiveTrack *tracks[sqMaxTracks];//,\r
+//-- mytracks[sqMaxTracks];\r
+//--static word sqMode,sqFadeStep;\r
+ word far *sqHack,far *sqHackPtr,sqHackLen,sqHackSeqLen;\r
+ long sqHackTime;\r
\r
-void opl2out(word reg, word data)\r
+// Internal routines\r
+ void SDL_DigitizedDone(void);\r
+\r
+//Assembly functions\r
+boolean alNoIRQ;\r
+\r
+int count_time=0;\r
+int count_fx=0;\r
+int extreme=0;\r
+\r
+void SDL_turnOnPCSpeaker(word timerval)\r
{\r
- __asm\r
- {\r
- mov ax,reg\r
- mov dx,word ptr [ADLIB_FM_ADDRESS]\r
- or ah,ah\r
- jz @@1\r
- add dx,2\r
-@@1: out dx,al\r
- mov cx,6\r
-@@2: in al,dx\r
- loop @@2\r
- inc dl\r
- mov ax,data\r
- out dx,al\r
- dec dl\r
- mov cx,36\r
-@@3: in al,dx\r
- loop @@3\r
+ __asm {\r
+ mov bx,timerval\r
+ mov al,0b6h\r
+ out 43h,al\r
+ mov al,bl\r
+ out 42h,al\r
+ mov al,bh\r
+ out 42h,al\r
+ in al,61h\r
+ or al,3\r
+ out 61h,al\r
+ }\r
+}\r
+\r
+void SDL_turnOffPCSpeaker()\r
+{\r
+ __asm {\r
+ in al,61h\r
+ and al,0fch\r
+ out 61h,al\r
+ }\r
+}\r
+\r
+void SDL_setPCSpeaker(byte val)\r
+{\r
+ __asm {\r
+ mov al,val\r
+ in al,61h\r
+ and al,0fch\r
+ or al,ah\r
+ out 61h,al\r
}\r
}\r
\r
-void opl3out(word reg, word data)\r
+void SDL_DoFX()\r
{\r
- __asm\r
+ if(pcSound)\r
{\r
- mov ax,reg\r
- mov dx,word ptr [ADLIB_FM_ADDRESS]\r
- or ah,ah\r
- jz @@1\r
- add dx,2\r
-@@1: out dx,al\r
- inc dl\r
- mov ax,data\r
- out dx,al\r
- dec dl\r
- mov cx,26\r
-@@2: in al,dx\r
- loop @@2\r
+ if(*pcSound!=pcLastSample)\r
+ {\r
+ pcLastSample=*pcSound;\r
+\r
+ if(pcLastSample)\r
+ SDL_turnOnPCSpeaker(pcLastSample*60);\r
+ else\r
+ SDL_turnOffPCSpeaker();\r
+ }\r
+ pcSound++;\r
+ pcLengthLeft--;\r
+ if(!pcLengthLeft)\r
+ {\r
+ pcSound=0;\r
+ SoundNumber=(soundnames)0;\r
+ SoundPriority=0;\r
+ SDL_turnOffPCSpeaker();\r
+ }\r
+ }\r
+\r
+ if(alSound && !alNoIRQ)\r
+ {\r
+ if(*alSound)\r
+ {\r
+ alOut/*InIRQ*/(alFreqL,*alSound);\r
+ alOut/*InIRQ*/(alFreqH,alBlock);\r
+ }\r
+ else alOut/*InIRQ*/(alFreqH,0);\r
+ alSound++;\r
+ alLengthLeft--;\r
+ if(!alLengthLeft)\r
+ {\r
+ alSound=0;\r
+ SoundNumber=(soundnames)0;\r
+ SoundPriority=0;\r
+ alOut/*InIRQ*/(alFreqH,0);\r
+ }\r
}\r
+\r
}\r
\r
-void opl3exp(word data)\r
+void SDL_DoFast()\r
{\r
- __asm\r
+ count_fx++;\r
+ if(count_fx>=5)\r
{\r
- mov ax,data\r
- mov dx,word ptr [ADLIB_FM_ADDRESS]\r
- add dx,2\r
- out dx,al\r
- mov cx,6\r
-@@1: in al,dx\r
- loop @@1\r
- inc dl\r
- mov al,ah\r
- out dx,al\r
- mov cx,36\r
-@@2: in al,dx\r
- loop @@2\r
- }\r
-}\r
-\r
-/* Function: FMResest *******************************************************\r
-*\r
-* Description: quick and dirty sound card reset (zeros all\r
-* registers).\r
-*\r
-*/\r
-void FMReset(void/*int percusiveMode*/)\r
-{\r
- int i;\r
-\r
- /* zero all registers */\r
- for(i = MIN_REGISTER; i < MAX_REGISTER+1; i++) opl2out(i, 0);\r
-\r
- /* allow FM chips to control the waveform of each operator */\r
- opl2out(0x01, 0x20);\r
-\r
- /* set rhythm enabled (6 melodic voices, 5 percussive) */\r
- opl2out(0xBD, 0x20);\r
-\r
- //FMSetPercusiveMode(percusiveMode);\r
-} /* End of FMReset */\r
-\r
-/* Function: FMKeyOff *******************************************************\r
-*\r
-* Parameters: voice - which voice to turn off.\r
-*\r
-* Description: turns off the specified voice.\r
-*\r
-*/\r
-void FMKeyOff(int voice)\r
-{\r
- int regNum;\r
-\r
- /* turn voice off */\r
- regNum = 0xB0 + voice % 11;//NUMVOICE;\r
- opl2out(regNum, 0x0E);\r
-} /* End of FMKeyOff */\r
-\r
-/* Function: FMKeyOn *******************************************************\r
-*\r
-* Parameters: voice - which voice to turn on.\r
-* freq - its frequency (note).\r
-* octave - its octave.\r
-*\r
-* Description: turns on a voice of specfied frequency and\r
-* octave.\r
-*\r
-*/\r
-void FMKeyOn(int voice, int freq, int octave)\r
-{\r
- int regNum, tmp;\r
-\r
- regNum = 0xA0 + voice % 11;//NUMVOICE;\r
- opl2out(regNum, freq & 0xff);\r
- regNum = 0xB0 + voice % 11;//NUMVOICE;\r
- tmp = (freq >> 8) | (octave << 2) | 0x20;\r
- opl2out(regNum, tmp);\r
-} /* End of FMKeyOn */\r
-\r
-/* Function: FMSetVoice *****************************************************\r
-*\r
-* Parameters: voiceNum - which voice to set.\r
-* ins - instrument to set voice.\r
-*\r
-* Description: sets the instrument of a voice.\r
-*\r
-*/\r
-void FMSetVoice(int voiceNum, FMInstrument *ins){\r
- int opCellNum, cellOffset;\r
-\r
- voiceNum %= 11;//NUMVOICE;\r
- cellOffset = voiceNum % 3 + ((voiceNum / 3) << 3);\r
-\r
- /* set sound characteristic */\r
- opCellNum = 0x20 + (char)cellOffset;\r
- opl2out(opCellNum, ins->SoundCharacteristic[0]);\r
- opCellNum += 3;\r
- opl2out(opCellNum, ins->SoundCharacteristic[1]);\r
-\r
- /* set level/output */\r
- opCellNum = 0x40 + (char)cellOffset;\r
- opl2out(opCellNum, ins->Level[0]);\r
- opCellNum += 3;\r
- opl2out(opCellNum, ins->Level[1]);\r
-\r
- /* set Attack/Decay */\r
- opCellNum = 0x60 + (char)cellOffset;\r
- opl2out(opCellNum, ins->AttackDecay[0]);\r
- opCellNum += 3;\r
- opl2out(opCellNum, ins->AttackDecay[1]);\r
-\r
- /* set Sustain/Release */\r
- opCellNum = 0x80 + (char)cellOffset;\r
- opl2out(opCellNum, ins->SustainRelease[0]);\r
- opCellNum += 3;\r
- opl2out(opCellNum, ins->SustainRelease[1]);\r
-\r
- /* set Wave Select */\r
- opCellNum = 0xE0 + (char)cellOffset;\r
- opl2out(opCellNum, ins->WaveSelect[0]);\r
- opCellNum += 3;\r
- opl2out(opCellNum, ins->WaveSelect[1]);\r
-\r
- /* set Feedback/Selectivity */\r
- opCellNum = (byte)0xC0 + (byte)voiceNum;\r
- opl2out(opCellNum, ins->Feedback);\r
-} /* End of FMSetVoice */\r
-\r
-\r
-//newer sd\r
-\r
-\r
-struct glob_game_vars *ggvv;\r
-// WARNING: subroutine call in interrupt handler. make sure you compile with -zu flag for large/compact memory models\r
-void interrupt SDL_irq0()\r
-{\r
- ggvv->ca.sd.irq0_ticks++;\r
- if ((ggvv->ca.sd.irq0_cnt += ggvv->ca.sd.irq0_add) >= ggvv->ca.sd.irq0_max) {\r
- ggvv->ca.sd.irq0_cnt -= ggvv->ca.sd.irq0_max;\r
+ count_fx=0;\r
+\r
+ SDL_DoFX();\r
+\r
+ count_time++;\r
+ if(count_time>=2)\r
+ {\r
+ TimeCount++;\r
+ count_time=0;\r
+ }\r
+ }\r
+\r
+ if(sqActive && !alNoIRQ)\r
+ {\r
+ if(sqHackLen)\r
+ {\r
+ do\r
+ {\r
+ if(sqHackTime>alTimeCount) break;\r
+ sqHackTime=alTimeCount+*(sqHackPtr+1);\r
+ alOut/*InIRQ*/(*(byte *)sqHackPtr,*(((byte *)sqHackPtr)+1));\r
+ sqHackPtr+=2;\r
+ sqHackLen-=4;\r
+ }\r
+ while(sqHackLen);\r
+ }\r
+ alTimeCount++;\r
+ if(!sqHackLen)\r
+ {\r
+ sqHackPtr=sqHack;\r
+ sqHackLen=sqHackSeqLen;\r
+ alTimeCount=0;\r
+ sqHackTime=0;\r
+ }\r
+ }\r
+\r
+//SS if(ssSample)\r
+//SS {\r
+//SS if(!(inp(ssStatus)&0x40))\r
+//SS {\r
+//SS outp(ssData,*ssSample++);\r
+//SS outp(ssControl,ssOff);\r
+//SS __asm push ax\r
+//SS __asm pop ax\r
+//SS outp(ssControl,ssOn);\r
+//SS __asm push ax\r
+//SS __asm pop ax\r
+//SS ssLengthLeft--;\r
+//SS if(!ssLengthLeft)\r
+//SS {\r
+//SS ssSample=0;\r
+//SS SDL_DigitizedDoneInIRQ();\r
+//SS }\r
+//SS }\r
+//SS }\r
+\r
+ TimerCount+=TimerDivisor;\r
+ if(*((word *)&TimerCount+1))\r
+ {\r
+ *((word *)&TimerCount+1)=0;\r
t0OldService();\r
}\r
- else {\r
- p8259_OCW2(0,P8259_OCW2_NON_SPECIFIC_EOI);\r
+ else\r
+ {\r
+ outp(0x20,0x20);\r
}\r
}\r
\r
-void SD_Initimf(global_game_variables_t *gvar)\r
+// Timer 0 ISR for 700Hz interrupts\r
+void interrupt SDL_t0FastAsmService(void)\r
{\r
- if (!init_adlib()) {\r
- printf("Cannot init library\n");\r
- return;\r
+ SDL_DoFast();\r
+}\r
+\r
+// Timer 0 ISR for 140Hz interrupts\r
+void interrupt SDL_t0SlowAsmService(void)\r
+{\r
+ count_time++;\r
+ if(count_time>=2)\r
+ {\r
+ TimeCount++;\r
+ count_time=0;\r
}\r
- if (!probe_8254()) { /* we need the timer to keep time with the music */\r
- printf("8254 timer not found\n");\r
- return;\r
+\r
+ SDL_DoFX();\r
+\r
+ TimerCount+=TimerDivisor;\r
+ if(*((word *)&TimerCount+1))\r
+ {\r
+ *((word *)&TimerCount+1)=0;\r
+ t0OldService();\r
}\r
+ else\r
+ outp(0x20,0x20);\r
+}\r
+\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_SetTimer0() - Sets system timer 0 to the specified speed\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+#pragma argsused\r
+static void\r
+SDL_SetTimer0(word speed)\r
+{\r
+#ifndef TPROF // If using Borland's profiling, don't screw with the timer\r
+asm pushf\r
+asm cli\r
\r
- gvar->ca.sd.imf_delay_countdown=0;\r
- gvar->ca.sd.imf_music=\r
- gvar->ca.sd.imf_play_ptr=\r
- gvar->ca.sd.imf_music_end=NULL;\r
+ outportb(0x43,0x36); // Change timer 0\r
+ outportb(0x40,speed);\r
+ outportb(0x40,speed >> 8);\r
+ // Kludge to handle special case for digitized PC sounds\r
+ if (TimerDivisor == (1192030 / (TickBase * 100)))\r
+ TimerDivisor = (1192030 / (TickBase * 10));\r
+ else\r
+ TimerDivisor = speed;\r
\r
- SD_adlib_shut_up();\r
- shutdown_adlib_opl3(); // NTS: Apparently the music won't play otherwise\r
+asm popf\r
+#else\r
+ TimerDivisor = 0x10000;\r
+#endif\r
}\r
\r
-void SD_imf_reset_music(global_game_variables_t *gvar)\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_SetIntsPerSec() - Uses SDL_SetTimer0() to set the number of\r
+// interrupts generated by system timer 0 per second\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+static void\r
+SDL_SetIntsPerSec(word ints)\r
{\r
- gvar->ca.sd.imf_music = gvar->ca.sd.imf_play_ptr = gvar->ca.sd.imf_music_end = NULL;\r
- gvar->ca.sd.imf_delay_countdown = 0;\r
+ TimerRate = ints;\r
+ SDL_SetTimer0(1192030 / ints);\r
}\r
\r
-void SD_StartupTimer(global_game_variables_t *gvar)\r
+#ifndef SD_USECATA3DSETTIMERSPEED\r
+static void\r
+SDL_SetTimerSpeed(void)\r
{\r
- gvar->ca.sd.irq0_ticks=\r
- gvar->ca.sd.irq0_cnt = 0;\r
- gvar->ca.sd.irq0_add = 182;\r
- gvar->ca.sd.irq0_max = 1000; /* about 18.2Hz */\r
- gvar->ca.sd.tickrate = 700;\r
+ word rate;\r
+ void interrupt (*isr)(void);\r
+\r
+ if ((DigiMode == sds_PC) && DigiPlaying)\r
+ {\r
+ rate = TickBase * 100;\r
+ isr = SDL_t0ExtremeAsmService;\r
+ }\r
+ else if\r
+ (\r
+ (MusicMode == smm_AdLib)\r
+ || ((DigiMode == sds_SoundSource) && DigiPlaying)\r
+ )\r
+ {\r
+ rate = TickBase * 10;\r
+ isr = SDL_t0FastAsmService;\r
+ }\r
+ else\r
+ {\r
+ rate = TickBase * 2;\r
+ isr = SDL_t0SlowAsmService;\r
+ }\r
\r
- write_8254_system_timer(T8254_REF_CLOCK_HZ / gvar->ca.sd.tickrate);\r
- t0OldService = _dos_getvect(8); /*IRQ0*/\r
- _dos_setvect(8,SDL_irq0);\r
+ if (rate != TimerRate)\r
+ {\r
+ setvect(8,isr);\r
+ SDL_SetIntsPerSec(rate);\r
+ TimerRate = rate;\r
+ }\r
+}\r
+#else\r
+static void\r
+SDL_SetTimerSpeed(void)\r
+{\r
+ word rate;\r
\r
- _cli();\r
- gvar->ca.sd.irq0_ticks = gvar->ca.sd.ptick = 0;\r
- _sti();\r
+ if (MusicMode == smm_AdLib)\r
+ rate = TickBase * 8;\r
+ else\r
+ rate = TickBase * 2;\r
+ SDL_SetIntsPerSec(rate);\r
}\r
+#endif\r
\r
-void SD_ShutdownTimer()\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_TimingService() - Used by SDL_InitDelay() to determine a timing\r
+// value for the current system that we're running on\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+//static void interrupt\r
+void interrupt\r
+SDL_TimingService(void)\r
{\r
- _dos_setvect(8,t0OldService);\r
+ //TimerVal = _CX;\r
+ __asm {\r
+ mov TimerVal,cx\r
+ }\r
+ TimerDone = 1;\r
+\r
+ outportb(0x20,0x20); // Ack interrupt\r
}\r
+#ifdef SD_USECATA3DSETTIMERSPEED\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_InitDelay() - Sets up TimerDelay's for SDL_Delay()\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+static void\r
+SDL_InitDelay(void)\r
+{\r
+ int i;\r
+ word timer;\r
+\r
+ setvect(8,SDL_TimingService); // Set to my timer 0 ISR\r
+\r
+ SDL_SetIntsPerSec(1000); // Time 1ms\r
+\r
+ for (i = 0,timer = 0;i < 10;i++) // Do timing test 10 times\r
+ {\r
+ __asm {\r
+ xor dx,dx // Zero DX\r
+ mov cx,0xffff // Put starting value in CX\r
+ mov [TimerDone],cx // TimerDone = false - 1\r
+#ifdef __BORLANDC__\r
+ }\r
+#endif\r
+startloop:\r
+#ifdef __BORLANDC__\r
+ __asm {\r
+#endif\r
+ or [TimerDone],0\r
+ jnz startloop // Make sure we're at the start\r
+#ifdef __BORLANDC__\r
+ }\r
+#endif\r
+loop_:\r
+#ifdef __BORLANDC__\r
+ __asm {\r
+#endif\r
+ test [TimerDone],1 // See if TimerDone flag got hit\r
+ jnz done // Yep - drop out of the loop\r
+ loop loop_\r
+#ifdef __BORLANDC__\r
+ }\r
+#endif\r
+done:\r
+#ifdef __WATCOMC__\r
+ }\r
+#endif\r
+\r
+ if (0xffff - TimerVal > timer)\r
+ timer = 0xffff - TimerVal;\r
+ }\r
+ timer += timer / 2; // Use some slop\r
+ TimerDelay10 = timer / (1000 / 10);\r
+ TimerDelay25 = timer / (1000 / 25);\r
+ TimerDelay100 = timer / (1000 / 100);\r
+\r
+ SDL_SetTimer0(0); // Reset timer 0\r
\r
-void SD_imf_free_music(global_game_variables_t *gvar)\r
+ setvect(8,t0OldService); // Set back to old ISR\r
+}\r
+#endif\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_Delay() - Delays the specified amount of time\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+static void\r
+SDL_Delay(word delay)\r
{\r
-#ifndef SD_USESCAMMPM\r
- if (gvar->ca.sd.imf_music) free(gvar->ca.sd.imf_music);\r
+ if (!delay)\r
+ return;\r
+\r
+ __asm {\r
+ mov cx,[delay]\r
+#ifdef __BORLANDC__\r
+ }\r
+#endif\r
+loop_:\r
+#ifdef __BORLANDC__\r
+ __asm {\r
+#endif\r
+ test [TimerDone],0 // Useless code - just for timing equivilency\r
+ jnz done\r
+ loop loop_\r
+#ifdef __BORLANDC__\r
+ }\r
+#endif\r
+done:\r
+#ifdef __WATCOMC__\r
+ }\r
+#endif\r
+}\r
+\r
+//\r
+// PC Sound code\r
+//\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_PCPlaySample() - Plays the specified sample on the PC speaker\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+#ifdef _MUSE_\r
+void\r
#else\r
- MM_FreePtr(MEMPTRCONV gvar->ca.audiosegs[0], gvar); //TODO make behave like id engine\r
+static void\r
#endif\r
- SD_imf_reset_music(gvar);\r
+SDL_PCPlaySample(byte huge *data,dword len)\r
+{\r
+asm pushf\r
+asm cli\r
+\r
+ SDL_IndicatePC(true);\r
+\r
+ pcLengthLeft = len;\r
+ pcSound = (volatile byte far *)data;\r
+\r
+asm popf\r
}\r
\r
-int SD_imf_load_music(const char *path, global_game_variables_t *gvar)\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_PCStopSample() - Stops a sample playing on the PC speaker\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+#ifdef _MUSE_\r
+void\r
+#else\r
+static void\r
+#endif\r
+SDL_PCStopSample(void)\r
{\r
- unsigned long len;\r
- unsigned char buf[8];\r
- int fd;\r
+asm pushf\r
+asm cli\r
\r
-#ifndef SD_USESCAMMPM\r
- SD_imf_free_music(gvar);\r
+ /*(long)*/pcSound = 0;\r
+\r
+ SDL_IndicatePC(false);\r
+\r
+asm in al,0x61 // Turn the speaker off\r
+asm and al,0xfd // ~2\r
+asm out 0x61,al\r
+\r
+asm popf\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_PCPlaySound() - Plays the specified sound on the PC speaker\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+#ifdef _MUSE_\r
+void\r
#else\r
- SD_imf_reset_music(gvar);\r
+static void\r
#endif\r
+SDL_PCPlaySound(PCSound far *sound)\r
+{\r
+asm pushf\r
+asm cli\r
\r
- fd = open(path,O_RDONLY|O_BINARY);\r
- if (fd < 0) return 0;\r
+ pcLastSample = -1;\r
+ pcLengthLeft = sound->common.length;\r
+ pcSound = sound->data;\r
\r
- len = lseek(fd,0,SEEK_END);\r
- lseek(fd,0,SEEK_SET);\r
- read(fd,buf,2);\r
- if (buf[0] != 0 || buf[1] != 0) // type 1 IMF\r
- len = *((uint16_t*)buf);\r
- else\r
- lseek(fd,0,SEEK_SET);\r
+asm popf\r
+}\r
\r
- if (len == 0 || len > 65535UL) {\r
- close(fd);\r
- return 0;\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_PCStopSound() - Stops the current sound playing on the PC Speaker\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+#ifdef _MUSE_\r
+void\r
+#else\r
+static void\r
+#endif\r
+SDL_PCStopSound(void)\r
+{\r
+asm pushf\r
+asm cli\r
+\r
+ /*(long)*/pcSound = 0;\r
+\r
+asm in al,0x61 // Turn the speaker off\r
+asm and al,0xfd // ~2\r
+asm out 0x61,al\r
+\r
+asm popf\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_PCService() - Handles playing the next sample in a PC sound\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+static void\r
+SDL_PCService(void)\r
+{\r
+ byte s;\r
+ word t;\r
+\r
+ if (pcSound)\r
+ {\r
+ s = *pcSound++;\r
+ if (s != pcLastSample)\r
+ {\r
+ asm pushf\r
+ asm cli\r
+\r
+ pcLastSample = s;\r
+ if (s) // We have a frequency!\r
+ {\r
+ t = pcSoundLookup[s];\r
+ asm mov bx,[t]\r
+\r
+ asm mov al,0xb6 // Write to channel 2 (speaker) timer\r
+ asm out 43h,al\r
+ asm mov al,bl\r
+ asm out 42h,al // Low byte\r
+ asm mov al,bh\r
+ asm out 42h,al // High byte\r
+\r
+ asm in al,0x61 // Turn the speaker & gate on\r
+ asm or al,3\r
+ asm out 0x61,al\r
+ }\r
+ else // Time for some silence\r
+ {\r
+ asm in al,0x61 // Turn the speaker & gate off\r
+ asm and al,0xfc // ~3\r
+ asm out 0x61,al\r
+ }\r
+\r
+ asm popf\r
+ }\r
+\r
+ if (!(--pcLengthLeft))\r
+ {\r
+ SDL_PCStopSound();\r
+ SDL_SoundFinished();\r
+ }\r
}\r
- len -= len & 3;\r
+}\r
\r
-#ifndef SD_USESCAMMPM\r
- gvar->ca.sd.imf_music = malloc(len);\r
-#else\r
- MM_GetPtr(MEMPTRCONV gvar->ca.audiosegs[0],len, gvar);\r
- gvar->ca.sd.imf_music = (struct imf_entry *)gvar->ca.audiosegs[0];\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_ShutPC() - Turns off the pc speaker\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+static void\r
+SDL_ShutPC(void)\r
+{\r
+asm pushf\r
+asm cli\r
+\r
+ pcSound = 0;\r
+\r
+asm in al,0x61 // Turn the speaker & gate off\r
+asm and al,0xfc // ~3\r
+asm out 0x61,al\r
+\r
+asm popf\r
+}\r
+\r
+//\r
+// Stuff for digitized sounds\r
+//\r
+memptr\r
+SDL_LoadDigiSegment(word page, global_game_variables_t *gvar)\r
+{\r
+ memptr addr;\r
+\r
+#if 0 // for debugging\r
+asm mov dx,STATUS_REGISTER_1\r
+asm in al,dx\r
+asm mov dx,ATR_INDEX\r
+asm mov al,ATR_OVERSCAN\r
+asm out dx,al\r
+asm mov al,10 // bright green\r
+asm out dx,al\r
+#endif\r
+\r
+ addr = PM_GetSoundPage(page);\r
+ PM_SetPageLock(gvar->pm.fi.PMSoundStart + page,pml_Locked, gvar);\r
+\r
+#if 0 // for debugging\r
+asm mov dx,STATUS_REGISTER_1\r
+asm in al,dx\r
+asm mov dx,ATR_INDEX\r
+asm mov al,ATR_OVERSCAN\r
+asm out dx,al\r
+asm mov al,3 // blue\r
+asm out dx,al\r
+asm mov al,0x20 // normal\r
+asm out dx,al\r
#endif\r
- if (gvar->ca.sd.imf_music == NULL) {\r
- close(fd);\r
- return 0;\r
+\r
+ return(addr);\r
+}\r
+\r
+void\r
+SDL_PlayDigiSegment(memptr addr,word len)\r
+{\r
+ switch (DigiMode)\r
+ {\r
+ case sds_PC:\r
+ SDL_PCPlaySample(addr,len);\r
+ break;\r
+//SS case sds_SoundSource:\r
+//SS SDL_SSPlaySample(addr,len);\r
+//SS break;\r
+//SB case sds_SoundBlaster:\r
+//SB SDL_SBPlaySample(addr,len);\r
+//SB break;\r
+ }\r
+}\r
+\r
+void\r
+SD_StopDigitized(global_game_variables_t *gvar)\r
+{\r
+ int i;\r
+\r
+asm pushf\r
+asm cli\r
+\r
+ DigiLeft = 0;\r
+ DigiNextAddr = nil;\r
+ DigiNextLen = 0;\r
+ DigiMissed = false;\r
+ DigiPlaying = false;\r
+ DigiNumber = DigiPriority = 0;\r
+ SoundPositioned = false;\r
+ if ((DigiMode == sds_PC) && (SoundMode == sdm_PC))\r
+ SDL_SoundFinished();\r
+\r
+ switch (DigiMode)\r
+ {\r
+ case sds_PC:\r
+ SDL_PCStopSample();\r
+ break;\r
+//SS case sds_SoundSource:\r
+//SS SDL_SSStopSample();\r
+//SS break;\r
+//SB case sds_SoundBlaster:\r
+//SB SDL_SBStopSample();\r
+//SB break;\r
+ }\r
+\r
+asm popf\r
+\r
+ for (i = DigiLastStart;i < DigiLastEnd;i++)\r
+ PM_SetPageLock(i + gvar->pm.fi.PMSoundStart,pml_Unlocked, gvar);\r
+ DigiLastStart = 1;\r
+ DigiLastEnd = 0;\r
+}\r
+\r
+void\r
+SD_Poll(global_game_variables_t *gvar)\r
+{\r
+ if (DigiLeft && !DigiNextAddr)\r
+ {\r
+ DigiNextLen = (DigiLeft >= PMPageSize)? PMPageSize : (DigiLeft % PMPageSize);\r
+ DigiLeft -= DigiNextLen;\r
+ if (!DigiLeft)\r
+ DigiLastSegment = true;\r
+ DigiNextAddr = SDL_LoadDigiSegment(DigiPage++, gvar);\r
+ }\r
+ if (DigiMissed && DigiNextAddr)\r
+ {\r
+ SDL_PlayDigiSegment(DigiNextAddr,DigiNextLen);\r
+ DigiNextAddr = nil;\r
+ DigiMissed = false;\r
+ if (DigiLastSegment)\r
+ {\r
+ DigiPlaying = false;\r
+ DigiLastSegment = false;\r
+ }\r
+ }\r
+ SDL_SetTimerSpeed();\r
+}\r
+\r
+void\r
+SD_SetPosition(int leftpos,int rightpos, global_game_variables_t *gvar)\r
+{\r
+ if\r
+ (\r
+ (leftpos < 0)\r
+ || (leftpos > 15)\r
+ || (rightpos < 0)\r
+ || (rightpos > 15)\r
+ || ((leftpos == 15) && (rightpos == 15))\r
+ )\r
+ Quit(gvar, "SD_SetPosition: Illegal position");\r
+\r
+ switch (DigiMode)\r
+ {\r
+//SB case sds_SoundBlaster:\r
+//SB SDL_PositionSBP(leftpos,rightpos);\r
+//SB break;\r
}\r
- read(fd,gvar->ca.sd.imf_music,len);\r
- close(fd);\r
+}\r
+\r
+void\r
+SD_PlayDigitized(word which,int leftpos,int rightpos, global_game_variables_t *gvar)\r
+{\r
+ word len;\r
+ memptr addr;\r
\r
- gvar->ca.sd.imf_play_ptr = gvar->ca.sd.imf_music;\r
- gvar->ca.sd.imf_music_end = gvar->ca.sd.imf_music + (len >> 2UL);\r
- return 1;\r
+ if (!DigiMode)\r
+ return;\r
+\r
+ SD_StopDigitized(gvar);\r
+ if (which >= NumDigi)\r
+ Quit(gvar, "SD_PlayDigitized: bad sound number");\r
+\r
+ SD_SetPosition(leftpos,rightpos, gvar);\r
+\r
+ DigiPage = DigiList[(which * 2) + 0];\r
+ DigiLeft = DigiList[(which * 2) + 1];\r
+\r
+ DigiLastStart = DigiPage;\r
+ DigiLastEnd = DigiPage + ((DigiLeft + (PMPageSize - 1)) / PMPageSize);\r
+\r
+ len = (DigiLeft >= PMPageSize)? PMPageSize : (DigiLeft % PMPageSize);\r
+ addr = SDL_LoadDigiSegment(DigiPage++, gvar);\r
+\r
+ DigiPlaying = true;\r
+ DigiLastSegment = false;\r
+\r
+ SDL_PlayDigiSegment(addr,len);\r
+ DigiLeft -= len;\r
+ if (!DigiLeft)\r
+ DigiLastSegment = true;\r
+\r
+ SD_Poll(gvar);\r
}\r
\r
-void SD_imf_tick(global_game_variables_t *gvar)\r
+void\r
+SDL_DigitizedDone(void)\r
{\r
- if (gvar->ca.sd.imf_delay_countdown == 0) {\r
- do {\r
- adlib_write(gvar->ca.sd.imf_play_ptr->reg,gvar->ca.sd.imf_play_ptr->data);\r
- gvar->ca.sd.imf_delay_countdown = gvar->ca.sd.imf_play_ptr->delay;\r
- gvar->ca.sd.imf_play_ptr++;\r
- if (gvar->ca.sd.imf_play_ptr == gvar->ca.sd.imf_music_end)\r
+ if (DigiNextAddr)\r
+ {\r
+ SDL_PlayDigiSegment(DigiNextAddr,DigiNextLen);\r
+ DigiNextAddr = nil;\r
+ DigiMissed = false;\r
+ }\r
+ else\r
+ {\r
+ if (DigiLastSegment)\r
+ {\r
+ DigiPlaying = false;\r
+ DigiLastSegment = false;\r
+ if ((DigiMode == sds_PC) && (SoundMode == sdm_PC))\r
{\r
-// printf("replay\n");\r
- gvar->ca.sd.imf_play_ptr = gvar->ca.sd.imf_music;\r
+ SDL_SoundFinished();\r
}\r
- } while (gvar->ca.sd.imf_delay_countdown == 0);\r
+ else\r
+ DigiNumber = DigiPriority = 0;\r
+ SoundPositioned = false;\r
+ }\r
+ else\r
+ DigiMissed = true;\r
+ }\r
+}\r
+\r
+void\r
+SD_SetDigiDevice(SDSMode mode, global_game_variables_t *gvar)\r
+{\r
+ boolean devicenotpresent;\r
+\r
+ if (mode == DigiMode)\r
+ return;\r
+\r
+ SD_StopDigitized(gvar);\r
+\r
+ devicenotpresent = false;\r
+//SBSS switch (mode)\r
+//SBSS {\r
+//SB case sds_SoundBlaster:\r
+//SB if (!SoundBlasterPresent)\r
+//SB {\r
+//SB if (SoundSourcePresent)\r
+//SB mode = sds_SoundSource;\r
+//SB else\r
+//SB devicenotpresent = true;\r
+//SB }\r
+//SB break;\r
+//SS case sds_SoundSource:\r
+//SS if (!SoundSourcePresent)\r
+//SS devicenotpresent = true;\r
+//SS break;\r
+//SBSS }\r
+\r
+ if (!devicenotpresent)\r
+ {\r
+//SS if (DigiMode == sds_SoundSource)\r
+//SS SDL_ShutSS();\r
+\r
+ DigiMode = mode;\r
+\r
+//SS if (mode == sds_SoundSource)\r
+//SS SDL_StartSS();\r
+\r
+ SDL_SetTimerSpeed();\r
}\r
- else {\r
- gvar->ca.sd.imf_delay_countdown--;\r
+}\r
+\r
+void\r
+SDL_SetupDigi(global_game_variables_t *gvar)\r
+{\r
+ memptr list;\r
+ word far *p,\r
+ pg;\r
+ int i;\r
+\r
+ PM_UnlockMainMem(gvar);\r
+ MM_GetPtr(&list,PMPageSize, gvar);\r
+ PM_CheckMainMem(gvar);\r
+ p = (word far *)MK_FP(PM_GetPage(gvar->pm.fi.ChunksInFile - 1, gvar),0);\r
+ _fmemcpy((void far *)list,(void far *)p,PMPageSize);\r
+ pg = gvar->pm.fi.PMSoundStart;\r
+ for (i = 0;i < PMPageSize / (sizeof(word) * 2);i++,p += 2)\r
+ {\r
+ if (pg >= gvar->pm.fi.ChunksInFile - 1)\r
+ break;\r
+ pg += (p[1] + (PMPageSize - 1)) / PMPageSize;\r
}\r
+ PM_UnlockMainMem(gvar);\r
+ MM_GetPtr(MEMPTRCONV DigiList,i * sizeof(word) * 2, gvar);\r
+ _fmemcpy((void far *)DigiList,(void far *)list,i * sizeof(word) * 2);\r
+ MM_FreePtr(&list, gvar);\r
+ NumDigi = i;\r
+\r
+ for (i = 0;i < LASTSOUND;i++)\r
+ DigiMap[i] = -1;\r
}\r
\r
-void SD_adlib_shut_up() {\r
- int i;\r
+// AdLib Code\r
\r
- memset(adlib_fm,0,sizeof(adlib_fm));\r
- memset(&adlib_reg_bd,0,sizeof(adlib_reg_bd));\r
- for (i=0;i < adlib_fm_voices;i++) {\r
- struct adlib_fm_operator *f;\r
- f = &adlib_fm[i].mod;\r
- f->ch_a = f->ch_b = f->ch_c = f->ch_d = 1;\r
- f = &adlib_fm[i].car;\r
- f->ch_a = f->ch_b = f->ch_c = f->ch_d = 1;\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// alOut(n,b) - Puts b in AdLib card register n\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+void\r
+alOut(byte n,byte b)\r
+{\r
+asm pushf\r
+asm cli\r
+\r
+asm mov dx,0x388\r
+asm mov al,[n]\r
+asm out dx,al\r
+#if 0\r
+ SDL_Delay(TimerDelay10);\r
+#else\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+#endif\r
+\r
+asm mov dx,0x389\r
+asm mov al,[b]\r
+asm out dx,al\r
+\r
+asm popf\r
+\r
+#if 0\r
+ SDL_Delay(TimerDelay25);\r
+#else\r
+asm mov dx,0x388\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+asm in al, dx\r
+#endif\r
+}\r
+\r
+//#if 0\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_SetInstrument() - Puts an instrument into a generator\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+//static void\r
+void\r
+SDL_SetInstrument(int track,int which,Instrument far *inst,boolean percussive)\r
+{\r
+ byte c,m;\r
+\r
+ if (percussive)\r
+ {\r
+ c = pcarriers[which];\r
+ m = pmodifiers[which];\r
+ }\r
+ else\r
+ {\r
+ c = carriers[which];\r
+ m = modifiers[which];\r
}\r
\r
- for (i=0;i < adlib_fm_voices;i++) {\r
- struct adlib_fm_operator *f;\r
+ tracks[track - 1]->inst = *inst;\r
+ tracks[track - 1]->percussive = percussive;\r
\r
- f = &adlib_fm[i].mod;\r
- f->mod_multiple = 1;\r
- f->total_level = 63 - 16;\r
- f->attack_rate = 15;\r
- f->decay_rate = 4;\r
- f->sustain_level = 0;\r
- f->release_rate = 8;\r
- f->f_number = 400;\r
- f->sustain = 1;\r
- f->octave = 4;\r
- f->key_on = 0;\r
+ alOut(m + alChar,inst->mChar);\r
+ alOut(m + alScale,inst->mScale);\r
+ alOut(m + alAttack,inst->mAttack);\r
+ alOut(m + alSus,inst->mSus);\r
+ alOut(m + alWave,inst->mWave);\r
\r
- f = &adlib_fm[i].car;\r
- f->mod_multiple = 1;\r
- f->total_level = 63 - 16;\r
- f->attack_rate = 15;\r
- f->decay_rate = 4;\r
- f->sustain_level = 0;\r
- f->release_rate = 8;\r
- f->f_number = 0;\r
- f->sustain = 1;\r
- f->octave = 0;\r
- f->key_on = 0;\r
+ // Most percussive instruments only use one cell\r
+ if (c != 0xff)\r
+ {\r
+ alOut(c + alChar,inst->cChar);\r
+ alOut(c + alScale,inst->cScale);\r
+ alOut(c + alAttack,inst->cAttack);\r
+ alOut(c + alSus,inst->cSus);\r
+ alOut(c + alWave,inst->cWave);\r
}\r
\r
- adlib_apply_all();\r
+ alOut(which + alFeedCon,inst->nConn); // DEBUG - I think this is right\r
+}\r
+//#endif\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_ALStopSound() - Turns off any sound effects playing through the\r
+// AdLib card\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+#ifdef _MUSE_\r
+void\r
+#else\r
+static void\r
+#endif\r
+SDL_ALStopSound(void)\r
+{\r
+asm pushf\r
+asm cli\r
+\r
+ /*(long)*/alSound = 0;\r
+ alOut(alFreqH + 0,0);\r
+\r
+asm popf\r
}\r
+\r
+static void\r
+SDL_AlSetFXInst(Instrument far *inst)\r
+{\r
+ byte c,m;\r
+\r
+ m = modifiers[0];\r
+ c = carriers[0];\r
+ alOut(m + alChar,inst->mChar);\r
+ alOut(m + alScale,inst->mScale);\r
+ alOut(m + alAttack,inst->mAttack);\r
+ alOut(m + alSus,inst->mSus);\r
+ alOut(m + alWave,inst->mWave);\r
+ alOut(c + alChar,inst->cChar);\r
+ alOut(c + alScale,inst->cScale);\r
+ alOut(c + alAttack,inst->cAttack);\r
+ alOut(c + alSus,inst->cSus);\r
+ alOut(c + alWave,inst->cWave);\r
+\r
+ // Note: Switch commenting on these lines for old MUSE compatibility\r
+// alOut(alFeedCon,inst->nConn);\r
+ alOut(alFeedCon,0);\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_ALPlaySound() - Plays the specified sound on the AdLib card\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+#ifdef _MUSE_\r
+void\r
+#else\r
+static void\r
+#endif\r
+SDL_ALPlaySound(AdLibSound far *sound, global_game_variables_t *gvar)\r
+{\r
+ Instrument __far *inst;\r
+ byte huge *data;\r
+\r
+ SDL_ALStopSound();\r
+\r
+asm pushf\r
+asm cli\r
+\r
+ alLengthLeft = sound->common.length;\r
+ data = sound->data;\r
+ data++;\r
+ data--;\r
+ alSound = (byte far *)data;\r
+ alBlock = ((sound->block & 7) << 2) | 0x20;\r
+ inst = &sound->inst;\r
+\r
+ if (!(inst->mSus | inst->cSus))\r
+ {\r
+ asm popf\r
+ Quit(gvar, "SDL_ALPlaySound() - Bad instrument");\r
+ }\r
+\r
+ SDL_AlSetFXInst(&alZeroInst); // DEBUG\r
+ SDL_AlSetFXInst(inst);\r
+\r
+asm popf\r
+}\r
+\r
+//#if 0\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_ALSoundService() - Plays the next sample out through the AdLib card\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+//static void\r
+void\r
+SDL_ALSoundService(void)\r
+{\r
+ byte s;\r
+\r
+ if (alSound)\r
+ {\r
+ s = *alSound++;\r
+ if (!s)\r
+ alOut(alFreqH + 0,0);\r
+ else\r
+ {\r
+ alOut(alFreqL + 0,s);\r
+ alOut(alFreqH + 0,alBlock);\r
+ }\r
+\r
+ if (!(--alLengthLeft))\r
+ {\r
+ /*(long)*/alSound = 0;\r
+ alOut(alFreqH + 0,0);\r
+ SDL_SoundFinished();\r
+ }\r
+ }\r
+}\r
+//#endif\r
+\r
+#if 0\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_SelectMeasure() - sets up sequencing variables for a given track\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+void\r
+SDL_SelectMeasure(ActiveTrack *track)\r
+{\r
+ track->seq = track->moods[track->mood];\r
+ track->nextevent = 0;\r
+}\r
+#endif\r
+\r
+//#if 0\r
+void\r
+SDL_ALService(void)\r
+{\r
+ byte a,v;\r
+ word w;\r
+\r
+ a=v=0;\r
+\r
+ if (!sqActive)\r
+ return;\r
+\r
+ while (sqHackLen && (sqHackTime <= alTimeCount))\r
+ {\r
+ w = *sqHackPtr++;\r
+ sqHackTime = alTimeCount + *sqHackPtr++;\r
+ asm mov dx,[w]\r
+ asm mov [a],dl\r
+ asm mov [v],dh\r
+ alOut(a,v);\r
+ sqHackLen -= 4;\r
+ }\r
+ alTimeCount++;\r
+ if (!sqHackLen)\r
+ {\r
+ sqHackPtr = (word far *)sqHack;\r
+ sqHackLen = sqHackSeqLen;\r
+ alTimeCount = sqHackTime = 0;\r
+ }\r
+}\r
+//#endif\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_ShutAL() - Shuts down the AdLib card for sound effects\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+static void\r
+SDL_ShutAL(void)\r
+{\r
+asm pushf\r
+asm cli\r
+\r
+ alOut(alEffects,0);\r
+ alOut(alFreqH + 0,0);\r
+ SDL_AlSetFXInst(&alZeroInst);\r
+ alSound = 0;\r
+\r
+asm popf\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_CleanAL() - Totally shuts down the AdLib card\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+static void\r
+SDL_CleanAL(void)\r
+{\r
+ int i;\r
+\r
+asm pushf\r
+asm cli\r
+\r
+ alOut(alEffects,0);\r
+ for (i = 1;i < 0xf5;i++)\r
+ alOut(i,0);\r
+\r
+asm popf\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_StartAL() - Starts up the AdLib card for sound effects\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+static void\r
+SDL_StartAL(void)\r
+{\r
+ alFXReg = 0;\r
+ alOut(alEffects,alFXReg);\r
+ SDL_AlSetFXInst(&alZeroInst);\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_DetectAdLib() - Determines if there's an AdLib (or SoundBlaster\r
+// emulating an AdLib) present\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+static boolean\r
+SDL_DetectAdLib(void)\r
+{\r
+ byte status1,status2;\r
+ int i;\r
+\r
+ alOut(4,0x60); // Reset T1 & T2\r
+ alOut(4,0x80); // Reset IRQ\r
+ status1 = readstat();\r
+ alOut(2,0xff); // Set timer 1\r
+ alOut(4,0x21); // Start timer 1\r
+ SDL_Delay(TimerDelay100);\r
+\r
+#if 0\r
+ __asm {\r
+ mov dx,0x388\r
+ mov cx,100\r
+#ifdef __BORLANDC__\r
+ }\r
+#endif\r
+usecloop:\r
+#ifdef __BORLANDC__\r
+ __asm {\r
+#endif\r
+ in al,dx\r
+ loop usecloop\r
+ }\r
+#endif\r
+\r
+ status2 = readstat();\r
+ alOut(4,0x60);\r
+ alOut(4,0x80);\r
+\r
+ if (((status1 & 0xe0) == 0x00) && ((status2 & 0xe0) == 0xc0))\r
+ {\r
+ for (i = 1;i <= 0xf5;i++) // Zero all the registers\r
+ alOut(i,0);\r
+\r
+ alOut(1,0x20); // Set WSE=1\r
+ alOut(8,0); // Set CSM=0 & SEL=0\r
+\r
+ return(true);\r
+ }\r
+ else\r
+ return(false);\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_t0Service() - My timer 0 ISR which handles the different timings and\r
+// dispatches to whatever other routines are appropriate\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+//static void interrupt\r
+void interrupt\r
+SDL_t0Service(void)\r
+{\r
+static word count = 1;\r
+ boolean myackflag = 0;\r
+\r
+//00#if 0 // for debugging\r
+asm mov dx,STATUS_REGISTER_1\r
+asm in al,dx\r
+asm mov dx,ATR_INDEX\r
+asm mov al,ATR_OVERSCAN\r
+asm out dx,al\r
+asm mov al,4 // red\r
+asm out dx,al\r
+//00#endif\r
+\r
+ HackCount++;\r
+\r
+ if ((MusicMode == smm_AdLib) || (DigiMode == sds_SoundSource))\r
+ {\r
+ SDL_ALService();\r
+//SS SDL_SSService();\r
+// if (!(++count & 7))\r
+ if (!(++count % 10))\r
+ {\r
+ LocalTime++;\r
+ TimeCount++;\r
+ if (SoundUserHook)\r
+ SoundUserHook();\r
+ }\r
+// if (!(count & 3))\r
+ if (!(count % 5))\r
+ {\r
+ switch (SoundMode)\r
+ {\r
+ case sdm_PC:\r
+ SDL_PCService();\r
+ break;\r
+ case sdm_AdLib:\r
+ SDL_ALSoundService();\r
+ break;\r
+ }\r
+ }\r
+ }\r
+ else\r
+ {\r
+ if (!(++count & 1))\r
+ {\r
+ LocalTime++;\r
+ TimeCount++;\r
+ if (SoundUserHook)\r
+ SoundUserHook();\r
+ }\r
+ switch (SoundMode)\r
+ {\r
+ case sdm_PC:\r
+ SDL_PCService();\r
+ break;\r
+ case sdm_AdLib:\r
+ SDL_ALSoundService();\r
+ break;\r
+ }\r
+ }\r
+\r
+ __asm {\r
+ mov ax,[WORD PTR TimerCount]\r
+ add ax,[WORD PTR TimerDivisor]\r
+ mov [WORD PTR TimerCount],ax\r
+ jnc myack\r
+ jmp end1\r
+#ifdef __BORLANDC__\r
+ }\r
+#endif\r
+myack:\r
+#ifdef __BORLANDC__\r
+ __asm {\r
+#endif\r
+ mov myackflag,1\r
+#ifdef __BORLANDC__\r
+ }\r
+#endif\r
+end1:\r
+#ifdef __WATCOMC__\r
+ }\r
+#endif\r
+ if(!myackflag)\r
+ t0OldService(); // If we overflow a word, time to call old int handler\r
+ else\r
+ outportb(0x20,0x20); // Ack the interrupt\r
+\r
+//00#if 0 // for debugging\r
+asm mov dx,STATUS_REGISTER_1\r
+asm in al,dx\r
+asm mov dx,ATR_INDEX\r
+asm mov al,ATR_OVERSCAN\r
+asm out dx,al\r
+asm mov al,3 // blue\r
+asm out dx,al\r
+asm mov al,0x20 // normal\r
+asm out dx,al\r
+//00#endif\r
+}\r
+\r
+////////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_ShutDevice() - turns off whatever device was being used for sound fx\r
+//\r
+////////////////////////////////////////////////////////////////////////////\r
+static void\r
+SDL_ShutDevice(void)\r
+{\r
+ switch (SoundMode)\r
+ {\r
+ case sdm_PC:\r
+ SDL_ShutPC();\r
+ break;\r
+ case sdm_AdLib:\r
+ SDL_ShutAL();\r
+ break;\r
+ }\r
+ SoundMode = sdm_Off;\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_CleanDevice() - totally shuts down all sound devices\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+static void\r
+SDL_CleanDevice(void)\r
+{\r
+ if ((SoundMode == sdm_AdLib) || (MusicMode == smm_AdLib))\r
+ SDL_CleanAL();\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SDL_StartDevice() - turns on whatever device is to be used for sound fx\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+static void\r
+SDL_StartDevice(void)\r
+{\r
+ switch (SoundMode)\r
+ {\r
+ case sdm_AdLib:\r
+ SDL_StartAL();\r
+ break;\r
+ }\r
+ SoundNumber = SoundPriority = 0;\r
+}\r
+#if 0\r
+static void\r
+SDL_SetTimerSpeed(void)\r
+{\r
+ word rate;\r
+\r
+ if (MusicMode == smm_AdLib)\r
+ rate = TickBase * 8;\r
+ else\r
+ rate = TickBase * 2;\r
+ SDL_SetIntsPerSec(rate);\r
+}\r
+#endif\r
+// Public routines\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_SetSoundMode() - Sets which sound hardware to use for sound effects\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+boolean\r
+SD_SetSoundMode(SDMode mode, global_game_variables_t *gvar)\r
+{\r
+ boolean result = false;\r
+ word tableoffset;\r
+\r
+ SD_StopSound(gvar);\r
+\r
+#ifndef _MUSE_\r
+ if ((mode == sdm_AdLib) && !AdLibPresent)\r
+ mode = sdm_PC;\r
+\r
+ switch (mode)\r
+ {\r
+ case sdm_Off:\r
+ NeedsDigitized = false;\r
+ result = true;\r
+ break;\r
+ case sdm_PC:\r
+ tableoffset = STARTPCSOUNDS;\r
+ NeedsDigitized = false;\r
+ result = true;\r
+ break;\r
+ case sdm_AdLib:\r
+ if (AdLibPresent)\r
+ {\r
+ tableoffset = STARTADLIBSOUNDS;\r
+ NeedsDigitized = false;\r
+ result = true;\r
+ }\r
+ break;\r
+ }\r
+#else\r
+ result = true;\r
+#endif\r
+\r
+ if (result && (mode != SoundMode))\r
+ {\r
+ SDL_ShutDevice();\r
+ SoundMode = mode;\r
+#ifndef _MUSE_\r
+ SoundTable = (word *)(&gvar->ca.audiosegs[tableoffset]);\r
+#endif\r
+ SDL_StartDevice();\r
+ }\r
+\r
+ SDL_SetTimerSpeed();\r
+\r
+ return(result);\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_SetMusicMode() - sets the device to use for background music\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+boolean\r
+SD_SetMusicMode(SMMode mode)\r
+{\r
+ boolean result = false;\r
+\r
+ SD_FadeOutMusic();\r
+ while (SD_MusicPlaying())\r
+ ;\r
+\r
+ switch (mode)\r
+ {\r
+ case smm_Off:\r
+ NeedsMusic = false;\r
+ result = true;\r
+ break;\r
+ case smm_AdLib:\r
+ if (AdLibPresent)\r
+ {\r
+ NeedsMusic = true;\r
+ result = true;\r
+ }\r
+ break;\r
+ }\r
+\r
+ if (result)\r
+ MusicMode = mode;\r
+\r
+ SDL_SetTimerSpeed();\r
+\r
+ return(result);\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_Startup() - starts up the Sound Mgr\r
+// Detects all additional sound hardware and installs my ISR\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+void\r
+SD_Startup(global_game_variables_t *gvar)\r
+{\r
+ int i;\r
+\r
+ if (SD_Started)\r
+ return;\r
+#ifndef SD_USECATA3DSETTIMERSPEED\r
+ SDL_SetDS();\r
+#endif\r
+ ssIsTandy = false;\r
+//SS ssNoCheck = false;\r
+ alNoCheck = false;\r
+//SB sbNoCheck = false;\r
+//SB sbNoProCheck = false;\r
+#ifndef _MUSE_\r
+ for (i = 1;i < _argc;i++)\r
+ {\r
+ switch (US_CheckParm(_argv[i],ParmStrings))\r
+ {\r
+ case 0: // No AdLib detection\r
+ alNoCheck = true;\r
+ break;\r
+//SB case 1: // No SoundBlaster detection\r
+//SB sbNoCheck = true;\r
+//SB break;\r
+//SB case 2: // No SoundBlaster Pro detection\r
+//SB sbNoProCheck = true;\r
+//SB break;\r
+//SS case 3:\r
+//SS ssNoCheck = true; // No Sound Source detection\r
+//SS break;\r
+ case 4: // Tandy Sound Source handling\r
+ ssIsTandy = true;\r
+ break;\r
+//SS case 5: // Sound Source present at LPT1\r
+//SS ssPort = 1;\r
+//SS ssNoCheck = SoundSourcePresent = true;\r
+//SS break;\r
+//SS case 6: // Sound Source present at LPT2\r
+//SS ssPort = 2;\r
+//SS ssNoCheck = SoundSourcePresent = true;\r
+//SS break;\r
+//SS case 7: // Sound Source present at LPT3\r
+//SS ssPort = 3;\r
+//SS ssNoCheck = SoundSourcePresent = true;\r
+//SS break;\r
+ }\r
+ }\r
+#endif\r
+\r
+ SoundUserHook = 0;\r
+\r
+ t0OldService = getvect(8); // Get old timer 0 ISR\r
+#ifdef SD_USECATA3DSETTIMERSPEED\r
+ SDL_InitDelay(); // SDL_InitDelay() uses t0OldService\r
+\r
+ setvect(8,SDL_t0Service); // Set to my timer 0 ISR\r
+#endif\r
+ LocalTime = TimeCount = alTimeCount = 0;\r
+\r
+ SD_SetSoundMode(sdm_Off, gvar);\r
+ SD_SetMusicMode(smm_Off);\r
+\r
+//SS if (!ssNoCheck)\r
+//SS SoundSourcePresent = SDL_DetectSoundSource();\r
+\r
+ if (!alNoCheck)\r
+ {\r
+ AdLibPresent = SDL_DetectAdLib();\r
+//SB if (AdLibPresent) && !sbNoCheck)\r
+//SB {\r
+//SB int port = -1;\r
+//SB char *env = getenv("BLASTER");\r
+//SB if (env)\r
+//SB {\r
+//SB long temp;\r
+//SB while (*env)\r
+//SB {\r
+//SB while (isspace(*env))\r
+//SB env++;\r
+//SB\r
+//SB switch (toupper(*env))\r
+//SB {\r
+//SB case 'A':\r
+//SB temp = strtol(env + 1,&env,16);\r
+//SB if\r
+//SB (\r
+//SB (temp >= 0x210)\r
+//SB && (temp <= 0x260)\r
+//SB && (!(temp & 0x00f))\r
+//SB )\r
+//SB port = (temp - 0x200) >> 4;\r
+//SB else\r
+//SB Quit(gvar, "SD_Startup: Unsupported address value in BLASTER");\r
+//SB break;\r
+//SB case 'I':\r
+//SB temp = strtol(env + 1,&env,10);\r
+//SB if\r
+//SB (\r
+//SB (temp >= 0)\r
+//SB && (temp <= 10)\r
+//SB && (sbIntVectors[temp] != -1)\r
+//SB )\r
+//SB {\r
+//SB sbInterrupt = temp;\r
+//SB sbIntVec = sbIntVectors[sbInterrupt];\r
+//SB }\r
+//SB else\r
+//SB Quit(gvar, "SD_Startup: Unsupported interrupt value in BLASTER");\r
+//SB break;\r
+//SB case 'D':\r
+//SB temp = strtol(env + 1,&env,10);\r
+//SB if ((temp == 0) || (temp == 1) || (temp == 3))\r
+//SB SDL_SBSetDMA(temp);\r
+//SB else\r
+//SB Quit(gvar, "SD_Startup: Unsupported DMA value in BLASTER");\r
+//SB break;\r
+//SB default:\r
+//SB while (isspace(*env))\r
+//SB env++;\r
+//SB while (*env && !isspace(*env))\r
+//SB env++;\r
+//SB break;\r
+//SB }\r
+//SB }\r
+//SB }\r
+//SB SoundBlasterPresent = SDL_DetectSoundBlaster(port);\r
+//SB }\r
+ }\r
+\r
+ for (i = 0;i < 255;i++)\r
+ pcSoundLookup[i] = i * 60;\r
+\r
+//SB if (SoundBlasterPresent)\r
+//SB SDL_StartSB();\r
+\r
+ SDL_SetupDigi(gvar);\r
+\r
+ SD_Started = true;\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_Default() - Sets up the default behaviour for the Sound Mgr whether\r
+// the config file was present or not.\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+void\r
+SD_Default(boolean gotit,SDMode sd,SMMode sm, global_game_variables_t *gvar)\r
+{\r
+ boolean gotsd,gotsm;\r
+\r
+ gotsd = gotsm = gotit;\r
+\r
+ if (gotsd) // Make sure requested sound hardware is available\r
+ {\r
+ switch (sd)\r
+ {\r
+ case sdm_AdLib:\r
+ gotsd = AdLibPresent;\r
+ break;\r
+ }\r
+ }\r
+ if (!gotsd)\r
+ {\r
+ if (AdLibPresent)\r
+ sd = sdm_AdLib;\r
+ else\r
+ sd = sdm_PC;\r
+ }\r
+ if (sd != SoundMode)\r
+ SD_SetSoundMode(sd, gvar);\r
+\r
+\r
+ if (gotsm) // Make sure requested music hardware is available\r
+ {\r
+ switch (sm)\r
+ {\r
+ case sdm_AdLib:\r
+ gotsm = AdLibPresent;\r
+ break;\r
+ }\r
+ }\r
+ if (!gotsm)\r
+ {\r
+ if (AdLibPresent)\r
+ sm = smm_AdLib;\r
+ }\r
+ if (sm != MusicMode)\r
+ SD_SetMusicMode(sm);\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_Shutdown() - shuts down the Sound Mgr\r
+// Removes sound ISR and turns off whatever sound hardware was active\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+void\r
+SD_Shutdown(global_game_variables_t *gvar)\r
+{\r
+ if (!SD_Started)\r
+ return;\r
+\r
+ SD_MusicOff();\r
+ SD_StopSound(gvar);\r
+ SDL_ShutDevice();\r
+ SDL_CleanDevice();\r
+\r
+//SB if (SoundBlasterPresent)\r
+//SB SDL_ShutSB();\r
+\r
+//SS if (SoundSourcePresent)\r
+//SS SDL_ShutSS();\r
+\r
+ asm pushf\r
+ asm cli\r
+\r
+ SDL_SetTimer0(0);\r
+\r
+ setvect(8,t0OldService);\r
+\r
+ asm popf\r
+\r
+ SD_Started = false;\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_SetUserHook() - sets the routine that the Sound Mgr calls every 1/70th\r
+// of a second from its timer 0 ISR\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+void\r
+SD_SetUserHook(void (* hook)(void))\r
+{\r
+ SoundUserHook = hook;\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_PositionSound() - Sets up a stereo imaging location for the next\r
+// sound to be played. Each channel ranges from 0 to 15.\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+void\r
+SD_PositionSound(int leftvol,int rightvol)\r
+{\r
+ LeftPosition = leftvol;\r
+ RightPosition = rightvol;\r
+ nextsoundpos = true;\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_PlaySound() - plays the specified sound on the appropriate hardware\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+boolean\r
+SD_PlaySound(soundnames sound, global_game_variables_t *gvar)\r
+{\r
+ boolean ispos;\r
+ SoundCommon far *s;\r
+ int lp,rp;\r
+\r
+ lp = LeftPosition;\r
+ rp = RightPosition;\r
+ LeftPosition = 0;\r
+ RightPosition = 0;\r
+\r
+ ispos = nextsoundpos;\r
+ nextsoundpos = false;\r
+\r
+ if (sound == -1)\r
+ return(false);\r
+\r
+ s = MK_FP(SoundTable[sound],0);\r
+ if ((SoundMode != sdm_Off) && !s)\r
+ Quit(gvar, "SD_PlaySound() - Uncached sound");\r
+\r
+ if ((DigiMode != sds_Off) && (DigiMap[sound] != -1))\r
+ {\r
+ if ((DigiMode == sds_PC) && (SoundMode == sdm_PC))\r
+ {\r
+ if (s->priority < SoundPriority)\r
+ return(false);\r
+\r
+ SDL_PCStopSound();\r
+\r
+ SD_PlayDigitized(DigiMap[sound],lp,rp, gvar);\r
+ SoundPositioned = ispos;\r
+ SoundNumber = sound;\r
+ SoundPriority = s->priority;\r
+ }\r
+ else\r
+ {\r
+ asm pushf\r
+ asm cli\r
+ if (DigiPriority && !DigiNumber)\r
+ {\r
+ asm popf\r
+ Quit(gvar, "SD_PlaySound: Priority without a sound");\r
+ }\r
+ asm popf\r
+\r
+ if (s->priority < DigiPriority)\r
+ return(false);\r
+\r
+ SD_PlayDigitized(DigiMap[sound],lp,rp, gvar);\r
+ SoundPositioned = ispos;\r
+ DigiNumber = sound;\r
+ DigiPriority = s->priority;\r
+ }\r
+\r
+ return(true);\r
+ }\r
+\r
+ if (SoundMode == sdm_Off)\r
+ return(false);\r
+ if (!s->length)\r
+ Quit(gvar, "SD_PlaySound() - Zero length sound");\r
+ if (s->priority < SoundPriority)\r
+ return(false);\r
+\r
+ switch (SoundMode)\r
+ {\r
+ case sdm_PC:\r
+ SDL_PCPlaySound((void far *)s);\r
+ break;\r
+ case sdm_AdLib:\r
+ SDL_ALPlaySound((void far *)s, gvar);\r
+ break;\r
+ }\r
+\r
+ SoundNumber = sound;\r
+ SoundPriority = s->priority;\r
+\r
+ return(false);\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_SoundPlaying() - returns the sound number that's playing, or 0 if\r
+// no sound is playing\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+word\r
+SD_SoundPlaying(void)\r
+{\r
+ boolean result = false;\r
+\r
+ switch (SoundMode)\r
+ {\r
+ case sdm_PC:\r
+ result = pcSound? true : false;\r
+ break;\r
+ case sdm_AdLib:\r
+ result = alSound? true : false;\r
+ break;\r
+ }\r
+\r
+ if (result)\r
+ return(SoundNumber);\r
+ else\r
+ return(false);\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_StopSound() - if a sound is playing, stops it\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+void\r
+SD_StopSound(global_game_variables_t *gvar)\r
+{\r
+ if (DigiPlaying)\r
+ SD_StopDigitized(gvar);\r
+\r
+ switch (SoundMode)\r
+ {\r
+ case sdm_PC:\r
+ SDL_PCStopSound();\r
+ break;\r
+ case sdm_AdLib:\r
+ SDL_ALStopSound();\r
+ break;\r
+ }\r
+\r
+ SoundPositioned = false;\r
+\r
+ SDL_SoundFinished();\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_WaitSoundDone() - waits until the current sound is done playing\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+void\r
+SD_WaitSoundDone(void)\r
+{\r
+ while (SD_SoundPlaying())\r
+ ;\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_MusicOn() - turns on the sequencer\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+void\r
+SD_MusicOn(void)\r
+{\r
+ sqActive = true;\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_MusicOff() - turns off the sequencer and any playing notes\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+void\r
+SD_MusicOff(void)\r
+{\r
+ word i;\r
+\r
+\r
+ switch (MusicMode)\r
+ {\r
+ case smm_AdLib:\r
+ alFXReg = 0;\r
+ alOut(alEffects,0);\r
+ for (i = 0;i < sqMaxTracks;i++)\r
+ alOut(alFreqH + i + 1,0);\r
+ break;\r
+ }\r
+ sqActive = false;\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_StartMusic() - starts playing the music pointed to\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+void\r
+SD_StartMusic(MusicGroup far *music)\r
+{\r
+ SD_MusicOff();\r
+asm pushf\r
+asm cli\r
+\r
+ if (MusicMode == smm_AdLib)\r
+ {\r
+ sqHackPtr = sqHack = music->values;\r
+ sqHackSeqLen = sqHackLen = music->length;\r
+ sqHackTime = 0;\r
+ alTimeCount = 0;\r
+ SD_MusicOn();\r
+ }\r
+\r
+asm popf\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_FadeOutMusic() - starts fading out the music. Call SD_MusicPlaying()\r
+// to see if the fadeout is complete\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+void\r
+SD_FadeOutMusic(void)\r
+{\r
+ switch (MusicMode)\r
+ {\r
+ case smm_AdLib:\r
+ // DEBUG - quick hack to turn the music off\r
+ SD_MusicOff();\r
+ break;\r
+ }\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// SD_MusicPlaying() - returns true if music is currently playing, false if\r
+// not\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+boolean\r
+SD_MusicPlaying(void)\r
+{\r
+ boolean result;\r
+\r
+ switch (MusicMode)\r
+ {\r
+ case smm_AdLib:\r
+ result = false;\r
+ // DEBUG - not written\r
+ break;\r
+ default:\r
+ result = false;\r
+ }\r
+\r
+ return(result);\r
+}\r
+\r
+//#if 0\r
+//\r
+// SD ASS!\r
+//\r
+\r
+//variables for these assembly functions\r
+volatile boolean pcindicate;\r
+volatile unsigned/*boolean*/ MyDS;\r
+\r
+void SDL_SetDS()\r
+{\r
+ __asm {\r
+ mov ax,ds\r
+ mov [cs:MyDS],ds\r
+ ret\r
+ }\r
+}\r
+\r
+//\r
+\r
+// Timer 0 ISR for 7000Hz interrupts\r
+void interrupt SDL_t0ExtremeAsmService(void)\r
+{\r
+ if(pcindicate)\r
+ {\r
+ if(pcSound)\r
+ {\r
+ SDL_setPCSpeaker(((*pcSound++)&0x80)>>6);\r
+ pcLengthLeft--;\r
+ if(!pcLengthLeft)\r
+ {\r
+ pcSound=0;\r
+ SDL_turnOffPCSpeaker();\r
+ SDL_DigitizedDoneInIRQ();\r
+ }\r
+ }\r
+ }\r
+ extreme++;\r
+ if(extreme>=10)\r
+ {\r
+ extreme=0;\r
+ SDL_DoFast();\r
+ }\r
+ else\r
+ outp(0x20,0x20);\r
+}\r
+\r
+//\r
+\r
+void SDL_IndicatePC(boolean ind)\r
+{\r
+ pcindicate=ind;\r
+}\r
+\r
+void\r
+SDL_DigitizedDoneInIRQ(void)\r
+{\r
+ if (DigiNextAddr)\r
+ {\r
+ SDL_PlayDigiSegment(DigiNextAddr,DigiNextLen/*,true*/);\r
+ DigiNextAddr = nil;\r
+ DigiMissed = false;\r
+ }\r
+ else\r
+ {\r
+ if (DigiLastSegment)\r
+ {\r
+ DigiPlaying = false;\r
+ DigiLastSegment = false;\r
+ if ((DigiMode == sds_PC) && (SoundMode == sdm_PC))\r
+ {\r
+ SDL_SoundFinished();\r
+ }\r
+ else\r
+ {\r
+ DigiNumber = (soundnames) 0;\r
+ DigiPriority = 0;\r
+ }\r
+ SoundPositioned = false;\r
+ }\r
+ else\r
+ DigiMissed = true;\r
+ }\r
+}\r
+\r
+#if 0\r
+// Inside an interrupt handler interrupts should already be disabled\r
+// so don't disable them again and cause V86 exceptions which cost\r
+// aprox. 300 processor tics!\r
+\r
+//static\r
+void alOutInIRQ(byte n,byte b)\r
+{\r
+ __asm {\r
+ mov dx,0x388\r
+ mov al,[n]\r
+ out dx,al\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ inc dx\r
+ mov al,[b]\r
+ out dx,al\r
+\r
+ dec dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ in al,dx\r
+ }\r
+}\r
+#endif\r
projects / 16.git / blobdiff