Mercurial > hg > dmlib
annotate jssmix.h @ 51:36e2f910219c
A non-working implementation of floating point audio mixing.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Mon, 01 Oct 2012 03:48:21 +0300 |
| parents | 033c660c25f5 |
| children | 8725853609db |
| 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 | |
|
51
36e2f910219c
A non-working implementation of floating point audio mixing.
Matti Hamalainen <ccr@tnsp.org>
parents:
49
diff
changeset
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14 #ifdef JSS_MIX_FP |
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36e2f910219c
A non-working implementation of floating point audio mixing.
Matti Hamalainen <ccr@tnsp.org>
parents:
49
diff
changeset
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15 #define JMIXER_ADDBUF_TYPE double |
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36e2f910219c
A non-working implementation of floating point audio mixing.
Matti Hamalainen <ccr@tnsp.org>
parents:
49
diff
changeset
|
16 #else |
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36e2f910219c
A non-working implementation of floating point audio mixing.
Matti Hamalainen <ccr@tnsp.org>
parents:
49
diff
changeset
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17 #define JMIXER_ADDBUF_TYPE Sint32 |
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36e2f910219c
A non-working implementation of floating point audio mixing.
Matti Hamalainen <ccr@tnsp.org>
parents:
49
diff
changeset
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18 #endif |
|
36e2f910219c
A non-working implementation of floating point audio mixing.
Matti Hamalainen <ccr@tnsp.org>
parents:
49
diff
changeset
|
19 |
|
36e2f910219c
A non-working implementation of floating point audio mixing.
Matti Hamalainen <ccr@tnsp.org>
parents:
49
diff
changeset
|
20 |
| 0 | 21 // Mixing limits |
| 22 #define JVM_LIMIT_16_POS (32767) | |
| 23 #define JVM_LIMIT_16_NEG (-32767) | |
| 24 #define JVM_ADD_16 (32768) | |
| 25 | |
| 26 | |
| 27 // A channel data structure | |
| 28 typedef struct | |
| 29 { | |
| 30 DMFixedPoint | |
| 31 chPos, // Current position in sample, 32:32 fixpoint | |
| 32 chDeltaO; // Delta in 32:32 UNSIGNED! (chDirection) | |
| 33 | |
| 34 int chFreq; // Frequency of sampel in Hz | |
|
36
f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
35 Sint32 |
| 0 | 36 chSize, // Length of sample in UNITS |
| 37 chLoopS, // Loop start in UNITS | |
| 38 chLoopE; // Loop end in UNITS | |
| 39 | |
| 40 void *chData; // Pointer to data | |
| 41 | |
| 42 BOOL chPlaying, // TRUE = playing | |
| 43 chMute, // TRUE = muted | |
| 44 chDirection; // TRUE = playing forwards, FALSE = backwards | |
| 45 | |
| 46 int chFlags; // Flags | |
| 47 int chVolume, // Volume | |
| 48 chPanning; // Panning | |
| 49 | |
|
51
36e2f910219c
A non-working implementation of floating point audio mixing.
Matti Hamalainen <ccr@tnsp.org>
parents:
49
diff
changeset
|
50 JMIXER_ADDBUF_TYPE chPrevR, chPrevL; |
| 0 | 51 } JSSChannel; |
| 52 | |
| 53 | |
| 54 // Channel table | |
| 55 typedef int JSSChannelTable[jsetNChannels]; | |
| 56 | |
| 57 | |
| 58 // Virtual software mixer "device" structure | |
| 59 typedef struct _JSSMixer JSSMixer; | |
| 60 | |
| 61 struct _JSSMixer | |
| 62 { | |
| 63 int outFormat, | |
| 64 outChannels, | |
| 65 outFreq, | |
| 66 globalVol; | |
| 67 JSSChannel channels[jsetNChannels]; | |
| 68 | |
| 69 int addBufSize; | |
|
51
36e2f910219c
A non-working implementation of floating point audio mixing.
Matti Hamalainen <ccr@tnsp.org>
parents:
49
diff
changeset
|
70 JMIXER_ADDBUF_TYPE *addBuffer; |
| 0 | 71 |
| 72 // Callback handling | |
| 73 int cbFreq, cbCounter; | |
| 74 void *cbData; | |
| 75 void (*cbFunction)(void *, void *); | |
| 76 | |
| 77 // Mixing routine pointers | |
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51
36e2f910219c
A non-working implementation of floating point audio mixing.
Matti Hamalainen <ccr@tnsp.org>
parents:
49
diff
changeset
|
78 int (*jvmMixChannel_FW)(JSSMixer *, JSSChannel *, JMIXER_ADDBUF_TYPE *, const int, const Sint32); |
|
36e2f910219c
A non-working implementation of floating point audio mixing.
Matti Hamalainen <ccr@tnsp.org>
parents:
49
diff
changeset
|
79 int (*jvmMixChannel_BW)(JSSMixer *, JSSChannel *, JMIXER_ADDBUF_TYPE *, const int, const Sint32); |
|
36e2f910219c
A non-working implementation of floating point audio mixing.
Matti Hamalainen <ccr@tnsp.org>
parents:
49
diff
changeset
|
80 void (*jvmPostProcess)(JMIXER_ADDBUF_TYPE *, void *, const int); |
| 0 | 81 |
| 82 // Device locking | |
| 83 #ifdef JSS_SUP_THREADS | |
| 84 DMMutex *mutex; | |
| 85 #endif | |
| 86 }; | |
| 87 | |
| 88 | |
| 89 /* Enums | |
| 90 */ | |
| 91 enum { | |
| 92 JMIX_AUTO = 0, | |
| 93 JMIX_C, | |
| 94 JMIX_MMX, | |
| 95 JMIX_SSE | |
| 96 }; | |
| 97 | |
| 98 | |
| 99 /* Main routines | |
| 100 */ | |
| 101 JSSMixer * jvmInit(const int outFormat, const int nChannels, const int outFreq, const int mixerID); | |
| 102 int jvmClose(JSSMixer *mixer); | |
| 103 | |
| 104 int jvmSetCallback(JSSMixer *mixer, void (*cbFunction)(void *, void *), void *cbData); | |
| 105 void jvmRemoveCallback(JSSMixer *mixer); | |
| 106 int jvmSetCallbackFreq(JSSMixer *mixer, const int cbFreq); | |
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36
f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
107 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
|
108 Sint32 jvmGetNextCBBufPos(JSSMixer *mixer, const int cbHandle); |
| 0 | 109 |
| 110 int jvmGetSampleSize(JSSMixer *mixer); | |
| 111 int jvmGetSampleRes(JSSMixer *mixer); | |
| 112 | |
| 113 void jvmRenderAudio(JSSMixer *mixer, void *mixBuffer, const int mixLength); | |
| 114 | |
| 115 | |
| 116 /* | |
| 117 int jvmAddCallback(JSSMixer *mixer, void (*cbFunction)(JSSMixer *, void *)); | |
| 118 int jvmRemoveCallback(JSSMixer *mixer, int cbHandle); | |
| 119 int jvmSetCallbackFreq(JSSMixer *mixer, int cbHandle, int cbFreq); | |
| 120 | |
| 121 int jvmAllocChannels(JSSMixer *mixer, int nChannels); | |
| 122 int jvmFreeChannels(JSSMixer *mixer, int iHandle); | |
| 123 int jvmGetChannelTable(JSSMixer *mixer, int iHandle, JSSChannelTable *pTable); | |
| 124 */ | |
| 125 | |
| 126 | |
| 127 /* Channel manipulation routines | |
| 128 */ | |
| 129 void jvmPlay(JSSMixer *mixer, const int channel); | |
| 130 void jvmStop(JSSMixer *mixer, const int channel); | |
| 131 | |
| 132 void jvmSetSample(JSSMixer *mixer, const int channel, | |
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36
f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
133 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
|
134 const Sint32 loopE, const int flags); |
| 0 | 135 |
| 136 void jvmSetFreq(JSSMixer *mixer, const int channel, const int freq); | |
| 137 int jvmGetFreq(JSSMixer *mixer, const int channel); | |
| 138 void jvmSetVolume(JSSMixer *mixer, const int channel, const int volume); | |
| 139 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
|
140 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
|
141 Sint32 jvmGetPos(JSSMixer *mixer, const int channel); |
| 0 | 142 |
| 143 void jvmSetPan(JSSMixer *mixer, const int channel, const int panning); | |
| 144 int jvmGetPan(JSSMixer *mixer, const int channel); | |
| 145 | |
| 146 void jvmMute(JSSMixer *mixer, const int channel, const BOOL mute); | |
| 147 | |
| 148 void jvmClear(JSSMixer *mixer, const int channel); | |
| 149 void jvmClearChannels(JSSMixer *mixer); | |
| 150 | |
| 151 void jvmSetGlobalVol(JSSMixer *mixer, const int volume); | |
| 152 int jvmGetGlobalVol(JSSMixer *mixer); | |
| 153 | |
| 154 | |
| 155 #endif // JSSMIX_H |