Mercurial > hg > dmlib
annotate jssmix.h @ 49:033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
8bit, but samples are internally upconverted to 16bit after module loading.)
Also prepare for floating point mixing support.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Mon, 01 Oct 2012 02:51:41 +0300 |
| parents | f3407a58e01e |
| children | 36e2f910219c |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * miniJSS - Mixing device and channel handling | |
| 3 * Programmed and designed by Matti 'ccr' Hamalainen | |
| 4 * (C) Copyright 2006-2012 Tecnic Software productions (TNSP) | |
| 5 */ | |
| 6 #ifndef JSSMIX_H | |
| 7 #define JSSMIX_H | |
| 8 #include "jss.h" | |
| 9 | |
| 10 //#define DBG(...) do { fprintf(stderr, __VA_ARGS__); } while (0) | |
| 11 #define DBG(...) do { /* stub */ } while (0) | |
| 12 | |
| 13 | |
| 14 // Mixing limits | |
| 15 #define JVM_LIMIT_16_POS (32767) | |
| 16 #define JVM_LIMIT_16_NEG (-32767) | |
| 17 #define JVM_ADD_16 (32768) | |
| 18 | |
| 19 | |
| 20 // A channel data structure | |
| 21 typedef struct | |
| 22 { | |
| 23 DMFixedPoint | |
| 24 chPos, // Current position in sample, 32:32 fixpoint | |
| 25 chDeltaO; // Delta in 32:32 UNSIGNED! (chDirection) | |
| 26 | |
| 27 int chFreq; // Frequency of sampel in Hz | |
|
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f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
28 Sint32 |
| 0 | 29 chSize, // Length of sample in UNITS |
| 30 chLoopS, // Loop start in UNITS | |
| 31 chLoopE; // Loop end in UNITS | |
| 32 | |
| 33 void *chData; // Pointer to data | |
| 34 | |
| 35 BOOL chPlaying, // TRUE = playing | |
| 36 chMute, // TRUE = muted | |
| 37 chDirection; // TRUE = playing forwards, FALSE = backwards | |
| 38 | |
| 39 int chFlags; // Flags | |
| 40 int chVolume, // Volume | |
| 41 chPanning; // Panning | |
| 42 | |
| 43 Sint32 chPrevR, chPrevL; | |
| 44 } JSSChannel; | |
| 45 | |
| 46 | |
| 47 // Channel table | |
| 48 typedef int JSSChannelTable[jsetNChannels]; | |
| 49 | |
| 50 | |
| 51 // Virtual software mixer "device" structure | |
| 52 typedef struct _JSSMixer JSSMixer; | |
| 53 | |
| 54 struct _JSSMixer | |
| 55 { | |
| 56 int outFormat, | |
| 57 outChannels, | |
| 58 outFreq, | |
| 59 globalVol; | |
| 60 JSSChannel channels[jsetNChannels]; | |
| 61 | |
| 62 int addBufSize; | |
| 63 Sint32 *addBuffer; | |
| 64 | |
| 65 // Callback handling | |
| 66 int cbFreq, cbCounter; | |
| 67 void *cbData; | |
| 68 void (*cbFunction)(void *, void *); | |
| 69 | |
| 70 // Mixing routine pointers | |
|
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f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
71 int (*jvmMixChannel_FW)(JSSMixer *, JSSChannel *, Sint32 *, const int, const Sint32); |
|
f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
72 int (*jvmMixChannel_BW)(JSSMixer *, JSSChannel *, Sint32 *, const int, const Sint32); |
| 0 | 73 void (*jvmPostProcess)(Sint32 *, void *mixBuffer, int); |
| 74 | |
| 75 // Device locking | |
| 76 #ifdef JSS_SUP_THREADS | |
| 77 DMMutex *mutex; | |
| 78 #endif | |
| 79 }; | |
| 80 | |
| 81 | |
| 82 /* Enums | |
| 83 */ | |
| 84 enum { | |
| 85 JMIX_AUTO = 0, | |
| 86 JMIX_C, | |
| 87 JMIX_MMX, | |
| 88 JMIX_SSE | |
| 89 }; | |
| 90 | |
| 91 | |
| 92 /* Main routines | |
| 93 */ | |
| 94 JSSMixer * jvmInit(const int outFormat, const int nChannels, const int outFreq, const int mixerID); | |
| 95 int jvmClose(JSSMixer *mixer); | |
| 96 | |
| 97 int jvmSetCallback(JSSMixer *mixer, void (*cbFunction)(void *, void *), void *cbData); | |
| 98 void jvmRemoveCallback(JSSMixer *mixer); | |
| 99 int jvmSetCallbackFreq(JSSMixer *mixer, const int cbFreq); | |
|
36
f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
100 Sint32 jvmGetLastCBBufPos(JSSMixer *mixer, const int cbHandle); |
|
f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
101 Sint32 jvmGetNextCBBufPos(JSSMixer *mixer, const int cbHandle); |
| 0 | 102 |
| 103 int jvmGetSampleSize(JSSMixer *mixer); | |
| 104 int jvmGetSampleRes(JSSMixer *mixer); | |
| 105 | |
| 106 void jvmRenderAudio(JSSMixer *mixer, void *mixBuffer, const int mixLength); | |
| 107 | |
| 108 | |
| 109 /* | |
| 110 int jvmAddCallback(JSSMixer *mixer, void (*cbFunction)(JSSMixer *, void *)); | |
| 111 int jvmRemoveCallback(JSSMixer *mixer, int cbHandle); | |
| 112 int jvmSetCallbackFreq(JSSMixer *mixer, int cbHandle, int cbFreq); | |
| 113 | |
| 114 int jvmAllocChannels(JSSMixer *mixer, int nChannels); | |
| 115 int jvmFreeChannels(JSSMixer *mixer, int iHandle); | |
| 116 int jvmGetChannelTable(JSSMixer *mixer, int iHandle, JSSChannelTable *pTable); | |
| 117 */ | |
| 118 | |
| 119 | |
| 120 /* Channel manipulation routines | |
| 121 */ | |
| 122 void jvmPlay(JSSMixer *mixer, const int channel); | |
| 123 void jvmStop(JSSMixer *mixer, const int channel); | |
| 124 | |
| 125 void jvmSetSample(JSSMixer *mixer, const int channel, | |
|
36
f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
126 void *data, const Sint32 size, const Sint32 loopS, |
|
f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
127 const Sint32 loopE, const int flags); |
| 0 | 128 |
| 129 void jvmSetFreq(JSSMixer *mixer, const int channel, const int freq); | |
| 130 int jvmGetFreq(JSSMixer *mixer, const int channel); | |
| 131 void jvmSetVolume(JSSMixer *mixer, const int channel, const int volume); | |
| 132 int jvmGetVolume(JSSMixer *mixer, const int channel); | |
|
36
f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
133 void jvmSetPos(JSSMixer *mixer, const int channel, const Sint32 pos); |
|
f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
134 Sint32 jvmGetPos(JSSMixer *mixer, const int channel); |
| 0 | 135 |
| 136 void jvmSetPan(JSSMixer *mixer, const int channel, const int panning); | |
| 137 int jvmGetPan(JSSMixer *mixer, const int channel); | |
| 138 | |
| 139 void jvmMute(JSSMixer *mixer, const int channel, const BOOL mute); | |
| 140 | |
| 141 void jvmClear(JSSMixer *mixer, const int channel); | |
| 142 void jvmClearChannels(JSSMixer *mixer); | |
| 143 | |
| 144 void jvmSetGlobalVol(JSSMixer *mixer, const int volume); | |
| 145 int jvmGetGlobalVol(JSSMixer *mixer); | |
| 146 | |
| 147 | |
| 148 #endif // JSSMIX_H |