1 | /* $Id: AudioMixBuffer-Convert.cpp.h 106061 2024-09-16 14:03:52Z vboxsync $ */
|
---|
2 | /** @file
|
---|
3 | * Audio mixing buffer - Format conversion template.
|
---|
4 | */
|
---|
5 |
|
---|
6 | /*
|
---|
7 | * Copyright (C) 2014-2024 Oracle and/or its affiliates.
|
---|
8 | *
|
---|
9 | * This file is part of VirtualBox base platform packages, as
|
---|
10 | * available from https://www.virtualbox.org.
|
---|
11 | *
|
---|
12 | * This program is free software; you can redistribute it and/or
|
---|
13 | * modify it under the terms of the GNU General Public License
|
---|
14 | * as published by the Free Software Foundation, in version 3 of the
|
---|
15 | * License.
|
---|
16 | *
|
---|
17 | * This program is distributed in the hope that it will be useful, but
|
---|
18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
---|
20 | * General Public License for more details.
|
---|
21 | *
|
---|
22 | * You should have received a copy of the GNU General Public License
|
---|
23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
|
---|
24 | *
|
---|
25 | * SPDX-License-Identifier: GPL-3.0-only
|
---|
26 | */
|
---|
27 |
|
---|
28 |
|
---|
29 | /* used to be: #define AUDMIXBUF_CONVERT(a_Name, a_Type, a_Min, a_Max, a_fSigned, a_cShift) */
|
---|
30 |
|
---|
31 | /* Clips a specific output value to a single sample value. */
|
---|
32 | DECLINLINE(int32_t) RT_CONCAT(audioMixBufSampleFrom,a_Name)(a_Type aVal)
|
---|
33 | {
|
---|
34 | /* left shifting of signed values is not defined, therefore the intermediate uint64_t cast */
|
---|
35 | if (a_fSigned)
|
---|
36 | return (int32_t) (((uint32_t) ((int32_t) aVal )) << (32 - a_cShift));
|
---|
37 | return (int32_t) (((uint32_t) ((int32_t) aVal - ((a_Max >> 1) + 1))) << (32 - a_cShift));
|
---|
38 | }
|
---|
39 |
|
---|
40 | /* Clips a single sample value to a specific output value. */
|
---|
41 | DECLINLINE(a_Type) RT_CONCAT(audioMixBufSampleTo,a_Name)(int32_t iVal)
|
---|
42 | {
|
---|
43 | if (a_fSigned)
|
---|
44 | return (a_Type) (iVal >> (32 - a_cShift));
|
---|
45 | return (a_Type) ((iVal >> (32 - a_cShift)) + ((a_Max >> 1) + 1));
|
---|
46 | }
|
---|
47 |
|
---|
48 | /* Encoders for peek: */
|
---|
49 |
|
---|
50 | /* Generic */
|
---|
51 | static DECLCALLBACK(void) RT_CONCAT(audioMixBufEncodeGeneric,a_Name)(void *pvDst, int32_t const *pi32Src, uint32_t cFrames,
|
---|
52 | PAUDIOMIXBUFPEEKSTATE pState)
|
---|
53 | {
|
---|
54 | RT_NOREF_PV(pState);
|
---|
55 | uintptr_t const cSrcChannels = pState->cSrcChannels;
|
---|
56 | uintptr_t const cDstChannels = pState->cDstChannels;
|
---|
57 | a_Type *pDst = (a_Type *)pvDst;
|
---|
58 | while (cFrames-- > 0)
|
---|
59 | {
|
---|
60 | uintptr_t idxDst = cDstChannels;
|
---|
61 | while (idxDst-- > 0)
|
---|
62 | {
|
---|
63 | intptr_t idxSrc = pState->aidxChannelMap[idxDst];
|
---|
64 | if (idxSrc >= 0)
|
---|
65 | pDst[idxDst] = RT_CONCAT(audioMixBufSampleTo,a_Name)(pi32Src[idxSrc]);
|
---|
66 | else if (idxSrc != -2)
|
---|
67 | pDst[idxDst] = (a_fSigned) ? 0 : (a_Max >> 1);
|
---|
68 | else
|
---|
69 | pDst[idxDst] = 0;
|
---|
70 | }
|
---|
71 | pDst += cDstChannels;
|
---|
72 | pi32Src += cSrcChannels;
|
---|
73 | }
|
---|
74 | }
|
---|
75 |
|
---|
76 | /* 2ch -> 2ch */
|
---|
77 | static DECLCALLBACK(void) RT_CONCAT(audioMixBufEncode2ChTo2Ch,a_Name)(void *pvDst, int32_t const *pi32Src, uint32_t cFrames,
|
---|
78 | PAUDIOMIXBUFPEEKSTATE pState)
|
---|
79 | {
|
---|
80 | RT_NOREF_PV(pState);
|
---|
81 | a_Type *pDst = (a_Type *)pvDst;
|
---|
82 | while (cFrames-- > 0)
|
---|
83 | {
|
---|
84 | pDst[0] = RT_CONCAT(audioMixBufSampleTo,a_Name)(pi32Src[0]);
|
---|
85 | pDst[1] = RT_CONCAT(audioMixBufSampleTo,a_Name)(pi32Src[1]);
|
---|
86 | AUDMIXBUF_MACRO_LOG(("%p: %RI32 / %RI32 => %RI32 / %RI32\n",
|
---|
87 | &pi32Src[0], pi32Src[0], pi32Src[1], (int32_t)pDst[0], (int32_t)pDst[1]));
|
---|
88 | pDst += 2;
|
---|
89 | pi32Src += 2;
|
---|
90 | }
|
---|
91 | }
|
---|
92 |
|
---|
93 | /* 2ch -> 1ch */
|
---|
94 | static DECLCALLBACK(void) RT_CONCAT(audioMixBufEncode2ChTo1Ch,a_Name)(void *pvDst, int32_t const *pi32Src, uint32_t cFrames,
|
---|
95 | PAUDIOMIXBUFPEEKSTATE pState)
|
---|
96 | {
|
---|
97 | RT_NOREF_PV(pState);
|
---|
98 | a_Type *pDst = (a_Type *)pvDst;
|
---|
99 | while (cFrames-- > 0)
|
---|
100 | {
|
---|
101 | pDst[0] = RT_CONCAT(audioMixBufSampleTo,a_Name)(audioMixBufBlendSampleRet(pi32Src[0], pi32Src[1]));
|
---|
102 | pDst += 1;
|
---|
103 | pi32Src += 2;
|
---|
104 | }
|
---|
105 | }
|
---|
106 |
|
---|
107 | /* 1ch -> 2ch */
|
---|
108 | static DECLCALLBACK(void) RT_CONCAT(audioMixBufEncode1ChTo2Ch,a_Name)(void *pvDst, int32_t const *pi32Src, uint32_t cFrames,
|
---|
109 | PAUDIOMIXBUFPEEKSTATE pState)
|
---|
110 | {
|
---|
111 | RT_NOREF_PV(pState);
|
---|
112 | a_Type *pDst = (a_Type *)pvDst;
|
---|
113 | while (cFrames-- > 0)
|
---|
114 | {
|
---|
115 | pDst[0] = pDst[1] = RT_CONCAT(audioMixBufSampleTo,a_Name)(pi32Src[0]);
|
---|
116 | pDst += 2;
|
---|
117 | pi32Src += 1;
|
---|
118 | }
|
---|
119 | }
|
---|
120 | /* 1ch -> 1ch */
|
---|
121 | static DECLCALLBACK(void) RT_CONCAT(audioMixBufEncode1ChTo1Ch,a_Name)(void *pvDst, int32_t const *pi32Src, uint32_t cFrames,
|
---|
122 | PAUDIOMIXBUFPEEKSTATE pState)
|
---|
123 | {
|
---|
124 | RT_NOREF_PV(pState);
|
---|
125 | a_Type *pDst = (a_Type *)pvDst;
|
---|
126 | while (cFrames-- > 0)
|
---|
127 | {
|
---|
128 | pDst[0] = RT_CONCAT(audioMixBufSampleTo,a_Name)(pi32Src[0]);
|
---|
129 | pDst += 1;
|
---|
130 | pi32Src += 1;
|
---|
131 | }
|
---|
132 | }
|
---|
133 |
|
---|
134 | /* Decoders for write: */
|
---|
135 |
|
---|
136 | /* Generic */
|
---|
137 | static DECLCALLBACK(void) RT_CONCAT(audioMixBufDecodeGeneric,a_Name)(int32_t *pi32Dst, void const *pvSrc, uint32_t cFrames,
|
---|
138 | PAUDIOMIXBUFWRITESTATE pState)
|
---|
139 | {
|
---|
140 | RT_NOREF_PV(pState);
|
---|
141 | uintptr_t const cSrcChannels = pState->cSrcChannels;
|
---|
142 | uintptr_t const cDstChannels = pState->cDstChannels;
|
---|
143 | a_Type const *pSrc = (a_Type const *)pvSrc;
|
---|
144 | while (cFrames-- > 0)
|
---|
145 | {
|
---|
146 | uintptr_t idxDst = cDstChannels;
|
---|
147 | while (idxDst-- > 0)
|
---|
148 | {
|
---|
149 | intptr_t idxSrc = pState->aidxChannelMap[idxDst];
|
---|
150 | if (idxSrc >= 0)
|
---|
151 | pi32Dst[idxDst] = RT_CONCAT(audioMixBufSampleFrom,a_Name)(pSrc[idxSrc]);
|
---|
152 | else if (idxSrc != -2)
|
---|
153 | pi32Dst[idxDst] = (a_fSigned) ? 0 : (a_Max >> 1);
|
---|
154 | else
|
---|
155 | pi32Dst[idxDst] = 0;
|
---|
156 | }
|
---|
157 | pi32Dst += cDstChannels;
|
---|
158 | pSrc += cSrcChannels;
|
---|
159 | }
|
---|
160 | }
|
---|
161 |
|
---|
162 | /* 2ch -> 2ch */
|
---|
163 | static DECLCALLBACK(void) RT_CONCAT(audioMixBufDecode2ChTo2Ch,a_Name)(int32_t *pi32Dst, void const *pvSrc, uint32_t cFrames,
|
---|
164 | PAUDIOMIXBUFWRITESTATE pState)
|
---|
165 | {
|
---|
166 | RT_NOREF_PV(pState);
|
---|
167 | a_Type const *pSrc = (a_Type const *)pvSrc;
|
---|
168 | while (cFrames-- > 0)
|
---|
169 | {
|
---|
170 | pi32Dst[0] = RT_CONCAT(audioMixBufSampleFrom,a_Name)(pSrc[0]);
|
---|
171 | pi32Dst[1] = RT_CONCAT(audioMixBufSampleFrom,a_Name)(pSrc[1]);
|
---|
172 | AUDMIXBUF_MACRO_LOG(("%p: %RI32 / %RI32 => %RI32 / %RI32\n",
|
---|
173 | &pSrc[0], (int32_t)pSrc[0], (int32_t)pSrc[1], pi32Dst[0], pi32Dst[1]));
|
---|
174 | pi32Dst += 2;
|
---|
175 | pSrc += 2;
|
---|
176 | }
|
---|
177 | }
|
---|
178 |
|
---|
179 | /* 2ch -> 1ch */
|
---|
180 | static DECLCALLBACK(void) RT_CONCAT(audioMixBufDecode2ChTo1Ch,a_Name)(int32_t *pi32Dst, void const *pvSrc, uint32_t cFrames,
|
---|
181 | PAUDIOMIXBUFWRITESTATE pState)
|
---|
182 | {
|
---|
183 | RT_NOREF_PV(pState);
|
---|
184 | a_Type const *pSrc = (a_Type const *)pvSrc;
|
---|
185 | while (cFrames-- > 0)
|
---|
186 | {
|
---|
187 | pi32Dst[0] = audioMixBufBlendSampleRet(RT_CONCAT(audioMixBufSampleFrom,a_Name)(pSrc[0]),
|
---|
188 | RT_CONCAT(audioMixBufSampleFrom,a_Name)(pSrc[1]));
|
---|
189 | pi32Dst += 1;
|
---|
190 | pSrc += 2;
|
---|
191 | }
|
---|
192 | }
|
---|
193 |
|
---|
194 | /* 1ch -> 2ch */
|
---|
195 | static DECLCALLBACK(void) RT_CONCAT(audioMixBufDecode1ChTo2Ch,a_Name)(int32_t *pi32Dst, void const *pvSrc, uint32_t cFrames,
|
---|
196 | PAUDIOMIXBUFWRITESTATE pState)
|
---|
197 | {
|
---|
198 | RT_NOREF_PV(pState);
|
---|
199 | a_Type const *pSrc = (a_Type const *)pvSrc;
|
---|
200 | while (cFrames-- > 0)
|
---|
201 | {
|
---|
202 | pi32Dst[1] = pi32Dst[0] = RT_CONCAT(audioMixBufSampleFrom,a_Name)(pSrc[0]);
|
---|
203 | pi32Dst += 2;
|
---|
204 | pSrc += 1;
|
---|
205 | }
|
---|
206 | }
|
---|
207 |
|
---|
208 | /* 1ch -> 1ch */
|
---|
209 | static DECLCALLBACK(void) RT_CONCAT(audioMixBufDecode1ChTo1Ch,a_Name)(int32_t *pi32Dst, void const *pvSrc, uint32_t cFrames,
|
---|
210 | PAUDIOMIXBUFWRITESTATE pState)
|
---|
211 | {
|
---|
212 | RT_NOREF_PV(pState);
|
---|
213 | a_Type const *pSrc = (a_Type const *)pvSrc;
|
---|
214 | while (cFrames-- > 0)
|
---|
215 | {
|
---|
216 | pi32Dst[0] = RT_CONCAT(audioMixBufSampleFrom,a_Name)(pSrc[0]);
|
---|
217 | pi32Dst += 1;
|
---|
218 | pSrc += 1;
|
---|
219 | }
|
---|
220 | }
|
---|
221 |
|
---|
222 | /* Decoders for blending: */
|
---|
223 |
|
---|
224 | /* Generic */
|
---|
225 | static DECLCALLBACK(void) RT_CONCAT3(audioMixBufDecodeGeneric,a_Name,Blend)(int32_t *pi32Dst, void const *pvSrc,
|
---|
226 | uint32_t cFrames, PAUDIOMIXBUFWRITESTATE pState)
|
---|
227 | {
|
---|
228 | RT_NOREF_PV(pState);
|
---|
229 | uintptr_t const cSrcChannels = pState->cSrcChannels;
|
---|
230 | uintptr_t const cDstChannels = pState->cDstChannels;
|
---|
231 | a_Type const *pSrc = (a_Type const *)pvSrc;
|
---|
232 | while (cFrames-- > 0)
|
---|
233 | {
|
---|
234 | uintptr_t idxDst = cDstChannels;
|
---|
235 | while (idxDst-- > 0)
|
---|
236 | {
|
---|
237 | intptr_t idxSrc = pState->aidxChannelMap[idxDst];
|
---|
238 | if (idxSrc >= 0)
|
---|
239 | audioMixBufBlendSample(&pi32Dst[idxDst], RT_CONCAT(audioMixBufSampleFrom,a_Name)(pSrc[idxSrc]));
|
---|
240 | }
|
---|
241 | pi32Dst += cDstChannels;
|
---|
242 | pSrc += cSrcChannels;
|
---|
243 | }
|
---|
244 | }
|
---|
245 |
|
---|
246 | /* 2ch -> 2ch */
|
---|
247 | static DECLCALLBACK(void) RT_CONCAT3(audioMixBufDecode2ChTo2Ch,a_Name,Blend)(int32_t *pi32Dst, void const *pvSrc,
|
---|
248 | uint32_t cFrames, PAUDIOMIXBUFWRITESTATE pState)
|
---|
249 | {
|
---|
250 | RT_NOREF_PV(pState);
|
---|
251 | a_Type const *pSrc = (a_Type const *)pvSrc;
|
---|
252 | while (cFrames-- > 0)
|
---|
253 | {
|
---|
254 | audioMixBufBlendSample(&pi32Dst[0], RT_CONCAT(audioMixBufSampleFrom,a_Name)(pSrc[0]));
|
---|
255 | audioMixBufBlendSample(&pi32Dst[1], RT_CONCAT(audioMixBufSampleFrom,a_Name)(pSrc[1]));
|
---|
256 | AUDMIXBUF_MACRO_LOG(("%p: %RI32 / %RI32 => %RI32 / %RI32\n",
|
---|
257 | &pSrc[0], (int32_t)pSrc[0], (int32_t)pSrc[1], pi32Dst[0], pi32Dst[1]));
|
---|
258 | pi32Dst += 2;
|
---|
259 | pSrc += 2;
|
---|
260 | }
|
---|
261 | }
|
---|
262 |
|
---|
263 | /* 2ch -> 1ch */
|
---|
264 | static DECLCALLBACK(void) RT_CONCAT3(audioMixBufDecode2ChTo1Ch,a_Name,Blend)(int32_t *pi32Dst, void const *pvSrc,
|
---|
265 | uint32_t cFrames, PAUDIOMIXBUFWRITESTATE pState)
|
---|
266 | {
|
---|
267 | RT_NOREF_PV(pState);
|
---|
268 | a_Type const *pSrc = (a_Type const *)pvSrc;
|
---|
269 | while (cFrames-- > 0)
|
---|
270 | {
|
---|
271 | audioMixBufBlendSample(&pi32Dst[0], audioMixBufBlendSampleRet(RT_CONCAT(audioMixBufSampleFrom,a_Name)(pSrc[0]),
|
---|
272 | RT_CONCAT(audioMixBufSampleFrom,a_Name)(pSrc[1])));
|
---|
273 | pi32Dst += 1;
|
---|
274 | pSrc += 2;
|
---|
275 | }
|
---|
276 | }
|
---|
277 |
|
---|
278 | /* 1ch -> 2ch */
|
---|
279 | static DECLCALLBACK(void) RT_CONCAT3(audioMixBufDecode1ChTo2Ch,a_Name,Blend)(int32_t *pi32Dst, void const *pvSrc,
|
---|
280 | uint32_t cFrames, PAUDIOMIXBUFWRITESTATE pState)
|
---|
281 | {
|
---|
282 | RT_NOREF_PV(pState);
|
---|
283 | a_Type const *pSrc = (a_Type const *)pvSrc;
|
---|
284 | while (cFrames-- > 0)
|
---|
285 | {
|
---|
286 | int32_t const i32Src = RT_CONCAT(audioMixBufSampleFrom,a_Name)(pSrc[0]);
|
---|
287 | audioMixBufBlendSample(&pi32Dst[0], i32Src);
|
---|
288 | audioMixBufBlendSample(&pi32Dst[1], i32Src);
|
---|
289 | pi32Dst += 2;
|
---|
290 | pSrc += 1;
|
---|
291 | }
|
---|
292 | }
|
---|
293 |
|
---|
294 | /* 1ch -> 1ch */
|
---|
295 | static DECLCALLBACK(void) RT_CONCAT3(audioMixBufDecode1ChTo1Ch,a_Name,Blend)(int32_t *pi32Dst, void const *pvSrc,
|
---|
296 | uint32_t cFrames, PAUDIOMIXBUFWRITESTATE pState)
|
---|
297 | {
|
---|
298 | RT_NOREF_PV(pState);
|
---|
299 | a_Type const *pSrc = (a_Type const *)pvSrc;
|
---|
300 | while (cFrames-- > 0)
|
---|
301 | {
|
---|
302 | audioMixBufBlendSample(&pi32Dst[0], RT_CONCAT(audioMixBufSampleFrom,a_Name)(pSrc[0]));
|
---|
303 | pi32Dst += 1;
|
---|
304 | pSrc += 1;
|
---|
305 | }
|
---|
306 | }
|
---|
307 |
|
---|
308 |
|
---|
309 | #undef a_Name
|
---|
310 | #undef a_Type
|
---|
311 | #undef a_Min
|
---|
312 | #undef a_Max
|
---|
313 | #undef a_fSigned
|
---|
314 | #undef a_cShift
|
---|
315 |
|
---|