mirror of
https://github.com/OpenDriver2/REDRIVER2.git
synced 2024-11-23 19:02:35 +01:00
771 lines
15 KiB
C
771 lines
15 KiB
C
#include "LIBSPU.H"
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#include "LIBETC.H"
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#include <stdio.h>
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#include "EMULATOR.H"
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#include "LIBAPI.H"
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#include "LIBMATH.H"
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#include <string.h>
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#include <AL/al.h>
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#include <AL/alc.h>
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#include <AL/alext.h>
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#include <minmax.h>
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// TODO: implement XA, implement ADSR
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#define SPU_CENTERNOTE (-32768 / 2)
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short _spu_voice_centerNote[24] ={ SPU_CENTERNOTE };
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const char* getALCErrorString(int err)
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{
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switch (err)
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{
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case ALC_NO_ERROR:
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return "AL_NO_ERROR";
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case ALC_INVALID_DEVICE:
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return "ALC_INVALID_DEVICE";
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case ALC_INVALID_CONTEXT:
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return "ALC_INVALID_CONTEXT";
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case ALC_INVALID_ENUM:
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return "ALC_INVALID_ENUM";
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case ALC_INVALID_VALUE:
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return "ALC_INVALID_VALUE";
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case ALC_OUT_OF_MEMORY:
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return "ALC_OUT_OF_MEMORY";
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default:
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return "AL_UNKNOWN";
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}
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}
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const char* getALErrorString(int err)
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{
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switch (err)
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{
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case AL_NO_ERROR:
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return "AL_NO_ERROR";
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case AL_INVALID_NAME:
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return "AL_INVALID_NAME";
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case AL_INVALID_ENUM:
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return "AL_INVALID_ENUM";
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case AL_INVALID_VALUE:
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return "AL_INVALID_VALUE";
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case AL_INVALID_OPERATION:
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return "AL_INVALID_OPERATION";
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case AL_OUT_OF_MEMORY:
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return "AL_OUT_OF_MEMORY";
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default:
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return "AL_UNKNOWN";
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}
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}
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#define SPU_REALMEMSIZE (512 * 1024)
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#define SPU_MEMSIZE (2048*1024) // SPU_REALMEMSIZE
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#define SPU_VOICES 24
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struct SPUMemory
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{
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unsigned char samplemem[SPU_MEMSIZE];
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unsigned char* writeptr;
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};
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static SPUMemory s_SpuMemory;
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struct SPUVoice
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{
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SpuVoiceAttr attr; // .voice is Id of this channel
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ALuint alBuffer;
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ALuint alSource;
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int sampledirty;
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};
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SPUVoice s_SpuVoices[SPU_VOICES];
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ALCdevice* s_ALCdevice = NULL;
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ALCcontext* s_ALCcontext = NULL;
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bool Emulator_InitSound()
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{
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if (s_ALCdevice)
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return true;
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// Init openAL
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// check devices list
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char* devices = (char*)alcGetString(nullptr, ALC_DEVICE_SPECIFIER);
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// go through device list (each device terminated with a single NULL, list terminated with double NULL)
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while ((*devices) != '\0')
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{
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printf("found sound device: %s\n", devices);
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devices += strlen(devices) + 1;
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}
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s_ALCdevice = alcOpenDevice(NULL);
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int alErr = AL_NO_ERROR;
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if (!s_ALCdevice)
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{
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alErr = alcGetError(nullptr);
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printf("alcOpenDevice: NULL DEVICE error: %s\n", getALCErrorString(alErr));
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return false;
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}
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// out_channel_formats snd_outputchannels
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int al_context_params[] =
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{
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ALC_FREQUENCY, 44100,
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0
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};
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s_ALCcontext = alcCreateContext(s_ALCdevice, al_context_params);
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alErr = alcGetError(s_ALCdevice);
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if (alErr != AL_NO_ERROR)
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{
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printf("alcCreateContext error: %s\n", getALCErrorString(alErr));
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return false;
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}
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alcMakeContextCurrent(s_ALCcontext);
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alErr = alcGetError(s_ALCdevice);
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if (alErr != AL_NO_ERROR)
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{
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printf("alcMakeContextCurrent error: %s\n", getALCErrorString(alErr));
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return false;
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}
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// Setup defaults
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alListenerf(AL_GAIN, 1.0f);
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alDistanceModel(AL_NONE);
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// create channels
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for (int i = 0; i < SPU_VOICES; i++)
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{
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SPUVoice& voice = s_SpuVoices[i];
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memset(&voice, 0, sizeof(SPUVoice));
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alGenSources(1, &voice.alSource);
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alGenBuffers(1, &voice.alBuffer);
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alSourcei(voice.alSource, AL_SOURCE_RESAMPLER_SOFT, 2); // Use cubic resampler
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alSourcei(voice.alSource, AL_SOURCE_RELATIVE, AL_TRUE);
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}
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memset(&s_SpuMemory, 0, sizeof(s_SpuMemory));
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return true;
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}
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//--------------------------------------------------------------------------------
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// PSX ADPCM coefficients
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const float K0[5] = { 0, 0.9375, 1.796875, 1.53125, 1.90625 };
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const float K1[5] = { 0, 0, -0.8125, -0.859375, -0.9375 };
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// PSX ADPCM decoding routine - decodes a single sample
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short vagToPcm(unsigned char soundParameter, int soundData, float* vagPrev1, float* vagPrev2)
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{
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int resultInt = 0;
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float dTmp1 = 0.0;
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float dTmp2 = 0.0;
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float dTmp3 = 0.0;
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if (soundData > 7)
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soundData -= 16;
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dTmp1 = (float)soundData * pow(2, (float)(12 - (soundParameter & 0x0F)));
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dTmp2 = (*vagPrev1) * K0[(soundParameter >> 4) & 0x0F];
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dTmp3 = (*vagPrev2) * K1[(soundParameter >> 4) & 0x0F];
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(*vagPrev2) = (*vagPrev1);
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(*vagPrev1) = dTmp1 + dTmp2 + dTmp3;
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resultInt = (int)round((*vagPrev1));
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if (resultInt > 32767)
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resultInt = 32767;
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if (resultInt < -32768)
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resultInt = -32768;
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return (short)resultInt;
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}
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enum ADPCM_FLAGS
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{
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LoopEnd = 1 << 0, // Jump to repeat address after this block
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// 1 - Copy repeatAddress to currentAddress AFTER this block
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// set ENDX (TODO: Immediately or after this block?)
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// 0 - Nothing
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Repeat = 1 << 1, // Takes an effect only with LoopEnd bit set.
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// 1 - Loop normally
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// 0 - Loop and force Release
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LoopStart = 1 << 2, // Mark current address as the beginning of repeat
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// 1 - Load currentAddress to repeatAddress
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// 0 - Nothing
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};
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// Main decoding routine - Takes PSX ADPCM formatted audio data and converts it to PCM. It also extracts the looping information if used.
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int decodeSound(unsigned char* iData, int soundSize, short* oData, int* loopStart, int* loopLength, bool breakOnEnd = false)
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{
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unsigned char sp;
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unsigned char flag;
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int sd = 0;
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float vagPrev1 = 0.0;
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float vagPrev2 = 0.0;
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int k = 0;
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int loopStrt = 0, loopEnd = 0;
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int breakOn = -1;
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for (int i = 0; i < soundSize; i++)
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{
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if (i % 16 == 0)
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{
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sp = iData[i];
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flag = iData[i+1];
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i += 2;
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}
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sd = (int)iData[i] & 0xF;
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oData[k++] = vagToPcm(sp, sd, &vagPrev1, &vagPrev2);
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sd = ((int)iData[i] >> 4) & 0xF;
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oData[k++] = vagToPcm(sp, sd, &vagPrev1, &vagPrev2);
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if (breakOnEnd && k == breakOn)
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return k;
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if (breakOn == -1)
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{
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// flags parsed
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if (flag & ADPCM_FLAGS::LoopStart)
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{
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loopStrt = k + 26;
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}
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if (flag & ADPCM_FLAGS::LoopEnd)
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{
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loopEnd = k + 26;
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if (flag & ADPCM_FLAGS::Repeat)
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{
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*loopStart = loopStrt;
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*loopLength = loopEnd - loopStrt;
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}
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if (breakOnEnd)
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breakOn = k + 26;
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}
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}
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}
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return soundSize;
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}
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#include <assert.h>
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unsigned long SpuWrite(unsigned char* addr, unsigned long size)
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{
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//if (0x7EFF0 < size)
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// size = 0x7EFF0;
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int wptr_ofs = s_SpuMemory.writeptr - s_SpuMemory.samplemem;
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if (wptr_ofs+size > SPU_REALMEMSIZE)
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{
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eprintf("SPU WARNING: SpuWrite exceeded SPU_REALMEMSIZE (%d > 512k)!\n", wptr_ofs+size);
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}
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assert(size > 0 && wptr_ofs+size < SPU_MEMSIZE);
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// simply copy to the writeptr
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memcpy(s_SpuMemory.writeptr, addr, size);
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#if 0 // BANK TEST
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{
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static short waveBuffer[SPU_MEMSIZE];
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ALuint alSource;
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ALuint alBuffer;
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alGenSources(1, &alSource);
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alGenBuffers(1, &alBuffer);
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int loopStart = 0, loopLen = 0;
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int count = decodeSound(addr, size, waveBuffer, &loopStart, &loopLen);
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// update AL buffer
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alBufferData(alBuffer, AL_FORMAT_MONO16, waveBuffer, count * sizeof(short), 11000);
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// set the buffer
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alSourcei(alSource, AL_BUFFER, alBuffer);
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alSourcef(alSource, AL_GAIN, 1.0f);// TODO: panning
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alSourcef(alSource, AL_PITCH, 1);
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alSourcePlay(alSource);
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int status;
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do
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{
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alGetSourcei(alSource, AL_SOURCE_STATE, &status);
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} while (status == AL_PLAYING);
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alSourceStop(alSource);
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alDeleteSources(1, &alSource);
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alDeleteBuffers(1, &alBuffer);
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}
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#endif
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return size;
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}
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long SpuSetTransferMode(long mode)
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{
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// TODO: handle different transfer modes?
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long mode_fix = mode == 0 ? 0 : 1;
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//trans_mode = mode;
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//transMode = mode_fix;
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return mode_fix;
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}
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unsigned long SpuSetTransferStartAddr(unsigned long addr)
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{
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s_SpuMemory.writeptr = s_SpuMemory.samplemem + addr;
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return 0;
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}
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long SpuIsTransferCompleted(long flag)
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{
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UNIMPLEMENTED();
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return 0;
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}
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void SpuStart()
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{
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Emulator_InitSound();
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}
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void _SpuInit(int a0)
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{
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ResetCallback();
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if (a0 == 0)
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{
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for (int i = 0; i < sizeof(_spu_voice_centerNote) / sizeof(short); i++)
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_spu_voice_centerNote[i] = SPU_CENTERNOTE;
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}
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SpuStart();
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}
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void SpuInit(void)
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{
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_SpuInit(0);
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}
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void UpdateVoiceSample(SPUVoice& voice)
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{
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//if (!voice.sampledirty)
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// return;
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voice.sampledirty = 0;
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static short waveBuffer[SPU_REALMEMSIZE];
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ALuint alSource = voice.alSource;
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ALuint alBuffer = voice.alBuffer;
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int loopStart = 0, loopLen = 0;
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int count = decodeSound(s_SpuMemory.samplemem + voice.attr.addr, SPU_REALMEMSIZE - voice.attr.addr, waveBuffer, &loopStart, &loopLen, true);
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if (count == 0)
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return;
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#if 0 // sample test
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{
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ALuint aalSource;
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ALuint aalBuffer;
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alGenSources(1, &aalSource);
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alGenBuffers(1, &aalBuffer);
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// update AL buffer
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alBufferData(aalBuffer, AL_FORMAT_MONO16, waveBuffer, count * sizeof(short), 11000);
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// set the buffer
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alSourcei(aalSource, AL_BUFFER, aalBuffer);
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alSourcef(aalSource, AL_GAIN, 1.0f);// TODO: panning
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alSourcef(aalSource, AL_PITCH, 1);
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alSourcePlay(aalSource);
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int status;
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do
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{
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alGetSourcei(aalSource, AL_SOURCE_STATE, &status);
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} while (status == AL_PLAYING);
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alSourceStop(aalSource);
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alDeleteSources(1, &aalSource);
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alDeleteBuffers(1, &aalBuffer);
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}
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#endif
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alSourcei(alSource, AL_BUFFER, 0);
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if (loopLen > 0)
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{
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loopStart += voice.attr.loop_addr - voice.attr.addr;
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int sampleOffs[] = { loopStart, loopStart + loopLen };
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alBufferiv(alBuffer, AL_LOOP_POINTS_SOFT, sampleOffs);
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alSourcei(alSource, AL_LOOPING, AL_TRUE);
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}
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else
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{
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int sampleOffs[] = { 0, 0 };
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alBufferiv(alBuffer, AL_LOOP_POINTS_SOFT, sampleOffs);
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alSourcei(alSource, AL_LOOPING, AL_FALSE);
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}
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alBufferData(alBuffer, AL_FORMAT_MONO16, waveBuffer, count * sizeof(short), 44100);
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// set the buffer
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alSourcei(alSource, AL_BUFFER, alBuffer);
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}
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void SpuSetVoiceAttr(SpuVoiceAttr *arg)
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{
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for (int i = 0; i < SPU_VOICES; i++)
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{
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if (!(arg->voice & SPU_VOICECH(i)))
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continue;
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SPUVoice& voice = s_SpuVoices[i];
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ALuint alSource = voice.alSource;
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// update sample
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if ((arg->mask & SPU_VOICE_WDSA) || (arg->mask & SPU_VOICE_LSAX))
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{
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//ALuint tmp = voice.alSource[1];
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//voice.alSource[1] = voice.alSource[0];
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//voice.alSource[1] = tmp;
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//alSource = voice.alSource[0];
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if (arg->mask & SPU_VOICE_WDSA)
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{
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if (voice.attr.addr != arg->addr)
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voice.sampledirty++;
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voice.attr.addr = arg->addr;
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}
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if (arg->mask & SPU_VOICE_LSAX)
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{
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if(voice.attr.loop_addr != arg->loop_addr)
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voice.sampledirty++;
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voice.attr.loop_addr = arg->loop_addr;
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}
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}
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// update volume
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if ((arg->mask & SPU_VOICE_VOLL) || (arg->mask & SPU_VOICE_VOLR))
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{
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if (arg->mask & SPU_VOICE_VOLL)
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voice.attr.volume.left = arg->volume.left;
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if (arg->mask & SPU_VOICE_VOLR)
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voice.attr.volume.right = arg->volume.right;
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const float left_gain = float(voice.attr.volume.left) / float(16384);
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const float right_gain = float(voice.attr.volume.right) / float(16384);
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const float STEREO_FACTOR = 3.0f;
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float pan = (acosf(left_gain) + asinf(right_gain)) / ((float)M_PI); // average angle in [0,1]
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pan = 2.0f * pan - 1.0f; // convert to [-1, 1]
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pan = pan * 0.5f; // 0.5 = sin(30') for a +/- 30 degree arc
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alSource3f(alSource, AL_POSITION, pan * STEREO_FACTOR, 0, -sqrtf(1.0f - pan * pan));
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alSourcef(alSource, AL_GAIN, (left_gain+right_gain)*0.5f);
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}
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// update pitch
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if (arg->mask & SPU_VOICE_PITCH)
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{
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voice.attr.pitch = arg->pitch;
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float pitch = float(voice.attr.pitch) / 4096.0f;
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alSourcef(alSource, AL_PITCH, pitch);
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}
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// TODO: ADSR and other stuff
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}
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}
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void SpuSetKey(long on_off, unsigned long voice_bit)
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{
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for (int i = 0; i < SPU_VOICES; i++)
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{
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if (voice_bit & SPU_VOICECH(i))
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{
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SPUVoice& voice = s_SpuVoices[i];
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ALuint alSource = voice.alSource;
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if (on_off)
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{
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alSourceStop(alSource);
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UpdateVoiceSample(voice);
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alSourcePlay(alSource);
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}
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else
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{
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alSourceStop(alSource);
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}
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}
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}
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}
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long SpuGetKeyStatus(unsigned long voice_bit)
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{
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int state = AL_STOPPED;
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for (int i = 0; i < SPU_VOICES; i++)
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{
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if (voice_bit != SPU_VOICECH(i))
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continue;
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SPUVoice& voice = s_SpuVoices[i];
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ALuint alSource = voice.alSource;
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|
alGetSourcei(alSource, AL_SOURCE_STATE, &state);
|
|
break;
|
|
}
|
|
|
|
return (state == AL_PLAYING); // simple as this?
|
|
}
|
|
|
|
void SpuGetAllKeysStatus(char* status)
|
|
{
|
|
for (int i = 0; i < SPU_VOICES; i++)
|
|
{
|
|
SPUVoice& voice = s_SpuVoices[i];
|
|
|
|
ALuint alSource = voice.alSource;
|
|
|
|
int state;
|
|
alGetSourcei(alSource, AL_SOURCE_STATE, &state);
|
|
|
|
status[i] = (state == AL_PLAYING);
|
|
}
|
|
}
|
|
|
|
void SpuSetKeyOnWithAttr(SpuVoiceAttr* attr)
|
|
{
|
|
SpuSetVoiceAttr(attr);
|
|
SpuSetKey(1, attr->voice);
|
|
}
|
|
|
|
long SpuSetMute(long on_off)
|
|
{
|
|
UNIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
long SpuSetReverb(long on_off)
|
|
{
|
|
UNIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
long SpuGetReverb(void)
|
|
{
|
|
UNIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
long SpuSetReverbModeParam(SpuReverbAttr* attr)
|
|
{
|
|
UNIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
void SpuGetReverbModeParam(SpuReverbAttr* attr)
|
|
{
|
|
UNIMPLEMENTED();
|
|
}
|
|
|
|
long SpuSetReverbDepth(SpuReverbAttr* attr)
|
|
{
|
|
UNIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
long SpuReserveReverbWorkArea(long on_off)
|
|
{
|
|
UNIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
long SpuIsReverbWorkAreaReserved(long on_off)
|
|
{
|
|
UNIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
unsigned long SpuSetReverbVoice(long on_off, unsigned long voice_bit)
|
|
{
|
|
UNIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
unsigned long SpuGetReverbVoice(void)
|
|
{
|
|
UNIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
long SpuClearReverbWorkArea(long mode)
|
|
{
|
|
UNIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
|
|
void SpuSetCommonAttr(SpuCommonAttr* attr)
|
|
{
|
|
UNIMPLEMENTED();
|
|
}
|
|
|
|
static long s_spuMallocVal = 0;
|
|
|
|
long SpuInitMalloc(long num, char* top)
|
|
{
|
|
s_spuMallocVal = 0;
|
|
return num;
|
|
}
|
|
|
|
long SpuMalloc(long size)
|
|
{
|
|
int addr = s_spuMallocVal;
|
|
s_spuMallocVal += size;
|
|
|
|
return addr;
|
|
}
|
|
|
|
long SpuMallocWithStartAddr(unsigned long addr, long size)
|
|
{
|
|
UNIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
void SpuFree(unsigned long addr)
|
|
{
|
|
s_spuMallocVal = 0;
|
|
}
|
|
|
|
unsigned long SpuFlush(unsigned long ev)
|
|
{
|
|
//UNIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
void SpuSetCommonMasterVolume(short mvol_left, short mvol_right)// (F)
|
|
{
|
|
//MasterVolume.VolumeLeft.Raw = mvol_left;
|
|
//MasterVolume.VolumeRight.Raw = mvol_right;
|
|
}
|
|
|
|
long SpuSetReverbModeType(long mode)
|
|
{
|
|
UNIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
void SpuSetReverbModeDepth(short depth_left, short depth_right)
|
|
{
|
|
UNIMPLEMENTED();
|
|
}
|
|
|
|
void SpuSetVoiceVolume(int vNum, short volL, short volR)
|
|
{
|
|
SpuVoiceAttr attr;
|
|
|
|
attr.mask = SPU_VOICE_VOLL | SPU_VOICE_VOLR;
|
|
attr.voice = SPU_VOICECH(vNum);
|
|
attr.volume.left = volL;
|
|
attr.volume.right = volR;
|
|
|
|
SpuSetVoiceAttr(&attr);
|
|
}
|
|
|
|
void SpuSetVoicePitch(int vNum, unsigned short pitch)
|
|
{
|
|
SpuVoiceAttr attr;
|
|
|
|
attr.mask = SPU_VOICE_PITCH;
|
|
attr.voice = SPU_VOICECH(vNum);
|
|
attr.pitch = pitch;
|
|
|
|
SpuSetVoiceAttr(&attr);
|
|
}
|
|
|
|
void SpuGetVoiceVolume(int vNum, short *volL, short *volR)
|
|
{
|
|
if(volL)
|
|
*volL = s_SpuVoices[vNum].attr.volume.left;
|
|
|
|
if(volR)
|
|
*volR = s_SpuVoices[vNum].attr.volume.right;
|
|
}
|
|
|
|
void SpuGetVoicePitch(int vNum, unsigned short *pitch)
|
|
{
|
|
*pitch = s_SpuVoices[vNum].attr.pitch;
|
|
}
|
|
|
|
void SpuSetVoiceAR(int vNum, unsigned short AR)
|
|
{
|
|
SpuVoiceAttr attr;
|
|
|
|
attr.mask = SPU_VOICE_ADSR_AR;
|
|
attr.ar = AR;
|
|
|
|
SpuSetVoiceAttr(&attr);
|
|
}
|
|
|
|
void SpuSetVoiceRR(int vNum, unsigned short RR)
|
|
{
|
|
SpuVoiceAttr attr;
|
|
|
|
attr.mask = SPU_VOICE_ADSR_RR;
|
|
attr.rr = RR;
|
|
|
|
SpuSetVoiceAttr(&attr);
|
|
}
|