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Commit | Line | Data |
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d5631638 | 1 | /* public domain */ |
2 | ||
6086a565 | 3 | #include "qemu/osdep.h" |
d5631638 | 4 | |
5 | #define AUDIO_CAP "win-int" | |
6 | #include <windows.h> | |
11575061 | 7 | #include <mmreg.h> |
d5631638 | 8 | #include <mmsystem.h> |
9 | ||
10 | #include "audio.h" | |
11 | #include "audio_int.h" | |
12 | #include "audio_win_int.h" | |
13 | ||
14 | int waveformat_from_audio_settings (WAVEFORMATEX *wfx, | |
15 | struct audsettings *as) | |
16 | { | |
17 | memset (wfx, 0, sizeof (*wfx)); | |
18 | ||
d5631638 | 19 | wfx->nChannels = as->nchannels; |
20 | wfx->nSamplesPerSec = as->freq; | |
21 | wfx->nAvgBytesPerSec = as->freq << (as->nchannels == 2); | |
22 | wfx->nBlockAlign = 1 << (as->nchannels == 2); | |
23 | wfx->cbSize = 0; | |
24 | ||
25 | switch (as->fmt) { | |
85bc5852 KZ |
26 | case AUDIO_FORMAT_S8: |
27 | case AUDIO_FORMAT_U8: | |
11575061 | 28 | wfx->wFormatTag = WAVE_FORMAT_PCM; |
d5631638 | 29 | wfx->wBitsPerSample = 8; |
30 | break; | |
31 | ||
85bc5852 KZ |
32 | case AUDIO_FORMAT_S16: |
33 | case AUDIO_FORMAT_U16: | |
11575061 | 34 | wfx->wFormatTag = WAVE_FORMAT_PCM; |
d5631638 | 35 | wfx->wBitsPerSample = 16; |
36 | wfx->nAvgBytesPerSec <<= 1; | |
37 | wfx->nBlockAlign <<= 1; | |
38 | break; | |
39 | ||
85bc5852 KZ |
40 | case AUDIO_FORMAT_S32: |
41 | case AUDIO_FORMAT_U32: | |
11575061 VR |
42 | wfx->wFormatTag = WAVE_FORMAT_PCM; |
43 | wfx->wBitsPerSample = 32; | |
44 | wfx->nAvgBytesPerSec <<= 2; | |
45 | wfx->nBlockAlign <<= 2; | |
46 | break; | |
47 | ||
48 | case AUDIO_FORMAT_F32: | |
49 | wfx->wFormatTag = WAVE_FORMAT_IEEE_FLOAT; | |
d5631638 | 50 | wfx->wBitsPerSample = 32; |
51 | wfx->nAvgBytesPerSec <<= 2; | |
52 | wfx->nBlockAlign <<= 2; | |
53 | break; | |
54 | ||
55 | default: | |
2d96a005 | 56 | dolog("Internal logic error: Bad audio format %d\n", as->fmt); |
d5631638 | 57 | return -1; |
58 | } | |
59 | ||
60 | return 0; | |
61 | } | |
62 | ||
63 | int waveformat_to_audio_settings (WAVEFORMATEX *wfx, | |
64 | struct audsettings *as) | |
65 | { | |
d5631638 | 66 | if (!wfx->nSamplesPerSec) { |
67 | dolog ("Invalid wave format, frequency is zero\n"); | |
68 | return -1; | |
69 | } | |
70 | as->freq = wfx->nSamplesPerSec; | |
71 | ||
72 | switch (wfx->nChannels) { | |
73 | case 1: | |
74 | as->nchannels = 1; | |
75 | break; | |
76 | ||
77 | case 2: | |
78 | as->nchannels = 2; | |
79 | break; | |
80 | ||
81 | default: | |
82 | dolog ( | |
83 | "Invalid wave format, number of channels is not 1 or 2, but %d\n", | |
84 | wfx->nChannels | |
85 | ); | |
86 | return -1; | |
87 | } | |
88 | ||
11575061 VR |
89 | if (wfx->wFormatTag == WAVE_FORMAT_PCM) { |
90 | switch (wfx->wBitsPerSample) { | |
91 | case 8: | |
92 | as->fmt = AUDIO_FORMAT_U8; | |
93 | break; | |
94 | ||
95 | case 16: | |
96 | as->fmt = AUDIO_FORMAT_S16; | |
97 | break; | |
98 | ||
99 | case 32: | |
100 | as->fmt = AUDIO_FORMAT_S32; | |
101 | break; | |
102 | ||
103 | default: | |
104 | dolog("Invalid PCM wave format, bits per sample is not " | |
105 | "8, 16 or 32, but %d\n", | |
106 | wfx->wBitsPerSample); | |
107 | return -1; | |
108 | } | |
109 | } else if (wfx->wFormatTag == WAVE_FORMAT_IEEE_FLOAT) { | |
110 | switch (wfx->wBitsPerSample) { | |
111 | case 32: | |
112 | as->fmt = AUDIO_FORMAT_F32; | |
113 | break; | |
114 | ||
115 | default: | |
116 | dolog("Invalid IEEE_FLOAT wave format, bits per sample is not " | |
117 | "32, but %d\n", | |
118 | wfx->wBitsPerSample); | |
119 | return -1; | |
120 | } | |
121 | } else { | |
122 | dolog("Invalid wave format, tag is not PCM and not IEEE_FLOAT, " | |
123 | "but %d\n", | |
124 | wfx->wFormatTag); | |
d5631638 | 125 | return -1; |
126 | } | |
127 | ||
128 | return 0; | |
129 | } | |
130 |