1 |
/* |
2 |
* audio.cpp - Audio support |
3 |
* |
4 |
* Basilisk II (C) 1997-2000 Christian Bauer |
5 |
* Portions (C) 1997-1999 Marc Hellwig |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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|
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/* |
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* SEE ALSO |
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* Inside Macintosh: Sound, chapter 5 "Sound Components" |
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*/ |
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|
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#include "sysdeps.h" |
28 |
#include "cpu_emulation.h" |
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#include "macos_util.h" |
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#include "emul_op.h" |
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#include "main.h" |
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#include "audio.h" |
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#include "audio_defs.h" |
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|
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#define DEBUG 0 |
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#include "debug.h" |
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|
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|
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// Global variables |
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struct audio_status AudioStatus; // Current audio status (sample rate etc.) |
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bool audio_open = false; // Flag: audio is initialized and ready |
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int audio_frames_per_block; // Number of audio frames per block |
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uint32 audio_component_flags; // Component feature flags |
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uint32 audio_data = 0; // Mac address of global data area |
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static int open_count = 0; // Open/close nesting count |
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|
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bool AudioAvailable = false; // Flag: audio output available (from the software point of view) |
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|
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|
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/* |
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* Reset audio emulation |
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*/ |
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|
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void AudioReset(void) |
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{ |
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audio_data = 0; |
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} |
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|
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|
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/* |
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* Get audio info |
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*/ |
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|
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static int32 AudioGetInfo(uint32 infoPtr, uint32 selector, uint32 sourceID) |
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{ |
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D(bug(" AudioGetInfo %c%c%c%c, infoPtr %08lx, source ID %08lx\n", selector >> 24, (selector >> 16) & 0xff, (selector >> 8) & 0xff, selector & 0xff, infoPtr, sourceID)); |
67 |
M68kRegisters r; |
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int i; |
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|
70 |
switch (selector) { |
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case siSampleSize: |
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WriteMacInt16(infoPtr, AudioStatus.sample_size); |
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break; |
74 |
|
75 |
case siSampleSizeAvailable: { |
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r.d[0] = audio_num_sample_sizes * 2; |
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Execute68kTrap(0xa122, &r); // NewHandle() |
78 |
uint32 h = r.a[0]; |
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if (h == 0) |
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return memFullErr; |
81 |
WriteMacInt16(infoPtr + sil_count, audio_num_sample_sizes); |
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WriteMacInt32(infoPtr + sil_infoHandle, h); |
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uint32 sp = ReadMacInt32(h); |
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for (i=0; i<audio_num_sample_sizes; i++) |
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WriteMacInt16(sp + i*2, audio_sample_sizes[i]); |
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break; |
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} |
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|
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case siNumberChannels: |
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WriteMacInt16(infoPtr, AudioStatus.channels); |
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break; |
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|
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case siChannelAvailable: { |
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r.d[0] = audio_num_channel_counts * 2; |
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Execute68kTrap(0xa122, &r); // NewHandle() |
96 |
uint32 h = r.a[0]; |
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if (h == 0) |
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return memFullErr; |
99 |
WriteMacInt16(infoPtr + sil_count, audio_num_channel_counts); |
100 |
WriteMacInt32(infoPtr + sil_infoHandle, h); |
101 |
uint32 sp = ReadMacInt32(h); |
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for (i=0; i<audio_num_channel_counts; i++) |
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WriteMacInt16(sp + i*2, audio_channel_counts[i]); |
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break; |
105 |
} |
106 |
|
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case siSampleRate: |
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WriteMacInt32(infoPtr, AudioStatus.sample_rate); |
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break; |
110 |
|
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case siSampleRateAvailable: { |
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r.d[0] = audio_num_sample_rates * 4; |
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Execute68kTrap(0xa122, &r); // NewHandle() |
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uint32 h = r.a[0]; |
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if (h == 0) |
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return memFullErr; |
117 |
WriteMacInt16(infoPtr + sil_count, audio_num_sample_rates); |
118 |
WriteMacInt32(infoPtr + sil_infoHandle, h); |
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uint32 lp = ReadMacInt32(h); |
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for (i=0; i<audio_num_sample_rates; i++) |
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WriteMacInt32(lp + i*4, audio_sample_rates[i]); |
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break; |
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} |
124 |
|
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case siSpeakerMute: |
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WriteMacInt16(infoPtr, audio_get_speaker_mute()); |
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break; |
128 |
|
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case siSpeakerVolume: |
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WriteMacInt32(infoPtr, audio_get_speaker_volume()); |
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break; |
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|
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case siHeadphoneMute: |
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WriteMacInt16(infoPtr, 0); |
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break; |
136 |
|
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case siHeadphoneVolume: |
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WriteMacInt32(infoPtr, 0x01000100); |
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break; |
140 |
|
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case siHeadphoneVolumeSteps: |
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WriteMacInt16(infoPtr, 13); |
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break; |
144 |
|
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case siHardwareMute: |
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WriteMacInt16(infoPtr, audio_get_main_mute()); |
147 |
break; |
148 |
|
149 |
case siHardwareVolume: |
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WriteMacInt32(infoPtr, audio_get_main_volume()); |
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break; |
152 |
|
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case siHardwareVolumeSteps: |
154 |
WriteMacInt16(infoPtr, 13); |
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break; |
156 |
|
157 |
case siHardwareBusy: |
158 |
WriteMacInt16(infoPtr, AudioStatus.num_sources != 0); |
159 |
break; |
160 |
|
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default: // Delegate to Apple Mixer |
162 |
if (AudioStatus.mixer == 0) |
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return badComponentSelector; |
164 |
M68kRegisters r; |
165 |
r.a[0] = infoPtr; |
166 |
r.d[0] = selector; |
167 |
r.a[1] = sourceID; |
168 |
r.a[2] = AudioStatus.mixer; |
169 |
Execute68k(audio_data + adatGetInfo, &r); |
170 |
D(bug(" delegated to Apple Mixer, returns %08lx\n", r.d[0])); |
171 |
return r.d[0]; |
172 |
} |
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return noErr; |
174 |
} |
175 |
|
176 |
|
177 |
/* |
178 |
* Set audio info |
179 |
*/ |
180 |
|
181 |
static int32 AudioSetInfo(uint32 infoPtr, uint32 selector, uint32 sourceID) |
182 |
{ |
183 |
D(bug(" AudioSetInfo %c%c%c%c, infoPtr %08lx, source ID %08lx\n", selector >> 24, (selector >> 16) & 0xff, (selector >> 8) & 0xff, selector & 0xff, infoPtr, sourceID)); |
184 |
M68kRegisters r; |
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int i; |
186 |
|
187 |
switch (selector) { |
188 |
case siSampleSize: |
189 |
D(bug(" set sample size %08lx\n", infoPtr)); |
190 |
if (AudioStatus.num_sources) |
191 |
return siDeviceBusyErr; |
192 |
for (i=0; i<audio_num_sample_sizes; i++) |
193 |
if (audio_sample_sizes[i] == infoPtr) { |
194 |
audio_set_sample_size(i); |
195 |
return noErr; |
196 |
} |
197 |
return siInvalidSampleSize; |
198 |
|
199 |
case siSampleRate: |
200 |
D(bug(" set sample rate %08lx\n", infoPtr)); |
201 |
if (AudioStatus.num_sources) |
202 |
return siDeviceBusyErr; |
203 |
for (i=0; i<audio_num_sample_rates; i++) |
204 |
if (audio_sample_rates[i] == infoPtr) { |
205 |
audio_set_sample_rate(i); |
206 |
return noErr; |
207 |
} |
208 |
return siInvalidSampleRate; |
209 |
|
210 |
case siNumberChannels: |
211 |
D(bug(" set number of channels %08lx\n", infoPtr)); |
212 |
if (AudioStatus.num_sources) |
213 |
return siDeviceBusyErr; |
214 |
for (i=0; i<audio_num_channel_counts; i++) |
215 |
if (audio_channel_counts[i] == infoPtr) { |
216 |
audio_set_channels(i); |
217 |
return noErr; |
218 |
} |
219 |
return badChannel; |
220 |
|
221 |
case siSpeakerMute: |
222 |
audio_set_speaker_mute((uint16)infoPtr); |
223 |
break; |
224 |
|
225 |
case siSpeakerVolume: |
226 |
D(bug(" set speaker volume %08lx\n", infoPtr)); |
227 |
audio_set_speaker_volume(infoPtr); |
228 |
break; |
229 |
|
230 |
case siHeadphoneMute: |
231 |
case siHeadphoneVolume: |
232 |
break; |
233 |
|
234 |
case siHardwareMute: |
235 |
audio_set_main_mute((uint16)infoPtr); |
236 |
break; |
237 |
|
238 |
case siHardwareVolume: |
239 |
D(bug(" set hardware volume %08lx\n", infoPtr)); |
240 |
audio_set_main_volume(infoPtr); |
241 |
break; |
242 |
|
243 |
default: // Delegate to Apple Mixer |
244 |
if (AudioStatus.mixer == 0) |
245 |
return badComponentSelector; |
246 |
r.a[0] = infoPtr; |
247 |
r.d[0] = selector; |
248 |
r.a[1] = sourceID; |
249 |
r.a[2] = AudioStatus.mixer; |
250 |
Execute68k(audio_data + adatSetInfo, &r); |
251 |
D(bug(" delegated to Apple Mixer, returns %08lx\n", r.d[0])); |
252 |
return r.d[0]; |
253 |
} |
254 |
return noErr; |
255 |
} |
256 |
|
257 |
|
258 |
/* |
259 |
* Sound output component dispatch |
260 |
*/ |
261 |
|
262 |
int32 AudioDispatch(uint32 params, uint32 globals) |
263 |
{ |
264 |
D(bug("AudioDispatch params %08lx (size %d), what %d\n", params, ReadMacInt8(params + cp_paramSize), (int16)ReadMacInt16(params + cp_what))); |
265 |
M68kRegisters r; |
266 |
uint32 p = params + cp_params; |
267 |
|
268 |
switch ((int16)ReadMacInt16(params + cp_what)) { |
269 |
// Basic component functions |
270 |
case kComponentOpenSelect: |
271 |
if (audio_data == 0) { |
272 |
|
273 |
// Allocate global data area |
274 |
r.d[0] = SIZEOF_adat; |
275 |
Execute68kTrap(0xa71e, &r); // NewPtrSysClear() |
276 |
if (r.a[0] == 0) |
277 |
return memFullErr; |
278 |
audio_data = r.a[0]; |
279 |
D(bug(" global data at %08lx\n", audio_data)); |
280 |
|
281 |
// Put in 68k routines |
282 |
int p = audio_data + adatDelegateCall; |
283 |
WriteMacInt16(p, 0x598f); p += 2; // subq.l #4,sp |
284 |
WriteMacInt16(p, 0x2f09); p += 2; // move.l a1,-(sp) |
285 |
WriteMacInt16(p, 0x2f08); p += 2; // move.l a0,-(sp) |
286 |
WriteMacInt16(p, 0x7024); p += 2; // moveq #$24,d0 |
287 |
WriteMacInt16(p, 0xa82a); p += 2; // ComponentDispatch |
288 |
WriteMacInt16(p, 0x201f); p += 2; // move.l (sp)+,d0 |
289 |
WriteMacInt16(p, M68K_RTS); p += 2; // rts |
290 |
if (p - audio_data != adatOpenMixer) |
291 |
goto adat_error; |
292 |
WriteMacInt16(p, 0x558f); p += 2; // subq.l #2,sp |
293 |
WriteMacInt16(p, 0x2f09); p += 2; // move.l a1,-(sp) |
294 |
WriteMacInt16(p, 0x2f00); p += 2; // move.l d0,-(sp) |
295 |
WriteMacInt16(p, 0x2f08); p += 2; // move.l a0,-(sp) |
296 |
WriteMacInt16(p, 0x203c); p += 2; // move.l #$06140018,d0 |
297 |
WriteMacInt32(p, 0x06140018); p+= 4; |
298 |
WriteMacInt16(p, 0xa800); p += 2; // SoundDispatch |
299 |
WriteMacInt16(p, 0x301f); p += 2; // move.w (sp)+,d0 |
300 |
WriteMacInt16(p, 0x48c0); p += 2; // ext.l d0 |
301 |
WriteMacInt16(p, M68K_RTS); p += 2; // rts |
302 |
if (p - audio_data != adatCloseMixer) |
303 |
goto adat_error; |
304 |
WriteMacInt16(p, 0x558f); p += 2; // subq.l #2,sp |
305 |
WriteMacInt16(p, 0x2f08); p += 2; // move.l a0,-(sp) |
306 |
WriteMacInt16(p, 0x203c); p += 2; // move.l #$02180018,d0 |
307 |
WriteMacInt32(p, 0x02180018); p+= 4; |
308 |
WriteMacInt16(p, 0xa800); p += 2; // SoundDispatch |
309 |
WriteMacInt16(p, 0x301f); p += 2; // move.w (sp)+,d0 |
310 |
WriteMacInt16(p, 0x48c0); p += 2; // ext.l d0 |
311 |
WriteMacInt16(p, M68K_RTS); p += 2; // rts |
312 |
if (p - audio_data != adatGetInfo) |
313 |
goto adat_error; |
314 |
WriteMacInt16(p, 0x598f); p += 2; // subq.l #4,sp |
315 |
WriteMacInt16(p, 0x2f0a); p += 2; // move.l a2,-(sp) |
316 |
WriteMacInt16(p, 0x2f09); p += 2; // move.l a1,-(sp) |
317 |
WriteMacInt16(p, 0x2f00); p += 2; // move.l d0,-(sp) |
318 |
WriteMacInt16(p, 0x2f08); p += 2; // move.l a0,-(sp) |
319 |
WriteMacInt16(p, 0x2f3c); p += 2; // move.l #$000c0103,-(sp) |
320 |
WriteMacInt32(p, 0x000c0103); p+= 4; |
321 |
WriteMacInt16(p, 0x7000); p += 2; // moveq #0,d0 |
322 |
WriteMacInt16(p, 0xa82a); p += 2; // ComponentDispatch |
323 |
WriteMacInt16(p, 0x201f); p += 2; // move.l (sp)+,d0 |
324 |
WriteMacInt16(p, M68K_RTS); p += 2; // rts |
325 |
if (p - audio_data != adatSetInfo) |
326 |
goto adat_error; |
327 |
WriteMacInt16(p, 0x598f); p += 2; // subq.l #4,sp |
328 |
WriteMacInt16(p, 0x2f0a); p += 2; // move.l a2,-(sp) |
329 |
WriteMacInt16(p, 0x2f09); p += 2; // move.l a1,-(sp) |
330 |
WriteMacInt16(p, 0x2f00); p += 2; // move.l d0,-(sp) |
331 |
WriteMacInt16(p, 0x2f08); p += 2; // move.l a0,-(sp) |
332 |
WriteMacInt16(p, 0x2f3c); p += 2; // move.l #$000c0104,-(sp) |
333 |
WriteMacInt32(p, 0x000c0104); p+= 4; |
334 |
WriteMacInt16(p, 0x7000); p += 2; // moveq #0,d0 |
335 |
WriteMacInt16(p, 0xa82a); p += 2; // ComponentDispatch |
336 |
WriteMacInt16(p, 0x201f); p += 2; // move.l (sp)+,d0 |
337 |
WriteMacInt16(p, M68K_RTS); p += 2; // rts |
338 |
if (p - audio_data != adatPlaySourceBuffer) |
339 |
goto adat_error; |
340 |
WriteMacInt16(p, 0x598f); p += 2; // subq.l #4,sp |
341 |
WriteMacInt16(p, 0x2f0a); p += 2; // move.l a2,-(sp) |
342 |
WriteMacInt16(p, 0x2f09); p += 2; // move.l a1,-(sp) |
343 |
WriteMacInt16(p, 0x2f08); p += 2; // move.l a0,-(sp) |
344 |
WriteMacInt16(p, 0x2f00); p += 2; // move.l d0,-(sp) |
345 |
WriteMacInt16(p, 0x2f3c); p += 2; // move.l #$000c0108,-(sp) |
346 |
WriteMacInt32(p, 0x000c0108); p+= 4; |
347 |
WriteMacInt16(p, 0x7000); p += 2; // moveq #0,d0 |
348 |
WriteMacInt16(p, 0xa82a); p += 2; // ComponentDispatch |
349 |
WriteMacInt16(p, 0x201f); p += 2; // move.l (sp)+,d0 |
350 |
WriteMacInt16(p, M68K_RTS); p += 2; // rts |
351 |
if (p - audio_data != adatGetSourceData) |
352 |
goto adat_error; |
353 |
WriteMacInt16(p, 0x598f); p += 2; // subq.l #4,sp |
354 |
WriteMacInt16(p, 0x2f09); p += 2; // move.l a1,-(sp) |
355 |
WriteMacInt16(p, 0x2f08); p += 2; // move.l a0,-(sp) |
356 |
WriteMacInt16(p, 0x2f3c); p += 2; // move.l #$00040004,-(sp) |
357 |
WriteMacInt32(p, 0x00040004); p+= 4; |
358 |
WriteMacInt16(p, 0x7000); p += 2; // moveq #0,d0 |
359 |
WriteMacInt16(p, 0xa82a); p += 2; // ComponentDispatch |
360 |
WriteMacInt16(p, 0x201f); p += 2; // move.l (sp)+,d0 |
361 |
WriteMacInt16(p, M68K_RTS); p += 2; // rts |
362 |
if (p - audio_data != adatData) |
363 |
goto adat_error; |
364 |
} |
365 |
AudioAvailable = true; |
366 |
if (open_count == 0) |
367 |
audio_enter_stream(); |
368 |
open_count++; |
369 |
return noErr; |
370 |
|
371 |
adat_error: printf("FATAL: audio component data block initialization error\n"); |
372 |
QuitEmulator(); |
373 |
return openErr; |
374 |
|
375 |
case kComponentCanDoSelect: |
376 |
case kComponentRegisterSelect: |
377 |
return noErr; |
378 |
|
379 |
case kComponentVersionSelect: |
380 |
return 0x00010003; |
381 |
|
382 |
case kComponentCloseSelect: |
383 |
open_count--; |
384 |
if (open_count == 0) { |
385 |
if (AudioStatus.mixer) { |
386 |
// Close Apple Mixer |
387 |
r.a[0] = AudioStatus.mixer; |
388 |
Execute68k(audio_data + adatCloseMixer, &r); |
389 |
AudioStatus.mixer = 0; |
390 |
return r.d[0]; |
391 |
} |
392 |
AudioStatus.num_sources = 0; |
393 |
audio_exit_stream(); |
394 |
} |
395 |
return noErr; |
396 |
|
397 |
// Sound component functions |
398 |
case kSoundComponentInitOutputDeviceSelect: |
399 |
D(bug(" InitOutputDevice\n")); |
400 |
if (!audio_open) |
401 |
return noHardwareErr; |
402 |
if (AudioStatus.mixer) |
403 |
return noErr; |
404 |
|
405 |
// Init sound component data |
406 |
WriteMacInt32(audio_data + adatData + scd_flags, 0); |
407 |
WriteMacInt32(audio_data + adatData + scd_format, AudioStatus.sample_size == 16 ? 'twos' : 'raw '); |
408 |
WriteMacInt16(audio_data + adatData + scd_numChannels, AudioStatus.channels); |
409 |
WriteMacInt16(audio_data + adatData + scd_sampleSize, AudioStatus.sample_size); |
410 |
WriteMacInt32(audio_data + adatData + scd_sampleRate, AudioStatus.sample_rate); |
411 |
WriteMacInt32(audio_data + adatData + scd_sampleCount, audio_frames_per_block); |
412 |
WriteMacInt32(audio_data + adatData + scd_buffer, 0); |
413 |
WriteMacInt32(audio_data + adatData + scd_reserved, 0); |
414 |
WriteMacInt32(audio_data + adatStreamInfo, 0); |
415 |
|
416 |
// Open Apple Mixer |
417 |
r.a[0] = audio_data + adatMixer; |
418 |
r.d[0] = 0; |
419 |
r.a[1] = audio_data + adatData; |
420 |
Execute68k(audio_data + adatOpenMixer, &r); |
421 |
AudioStatus.mixer = ReadMacInt32(audio_data + adatMixer); |
422 |
D(bug(" OpenMixer() returns %08lx, mixer %08lx\n", r.d[0], AudioStatus.mixer)); |
423 |
return r.d[0]; |
424 |
|
425 |
case kSoundComponentAddSourceSelect: |
426 |
D(bug(" AddSource\n")); |
427 |
AudioStatus.num_sources++; |
428 |
goto delegate; |
429 |
|
430 |
case kSoundComponentRemoveSourceSelect: |
431 |
D(bug(" RemoveSource\n")); |
432 |
AudioStatus.num_sources--; |
433 |
goto delegate; |
434 |
|
435 |
case kSoundComponentStopSourceSelect: |
436 |
D(bug(" StopSource\n")); |
437 |
goto delegate; |
438 |
|
439 |
case kSoundComponentPauseSourceSelect: |
440 |
D(bug(" PauseSource\n")); |
441 |
delegate: // Delegate call to Apple Mixer |
442 |
D(bug(" delegating call to Apple Mixer\n")); |
443 |
r.a[0] = AudioStatus.mixer; |
444 |
r.a[1] = params; |
445 |
Execute68k(audio_data + adatDelegateCall, &r); |
446 |
D(bug(" returns %08lx\n", r.d[0])); |
447 |
return r.d[0]; |
448 |
|
449 |
case kSoundComponentStartSourceSelect: |
450 |
D(bug(" StartSource\n")); |
451 |
return noErr; |
452 |
|
453 |
case kSoundComponentGetInfoSelect: |
454 |
return AudioGetInfo(ReadMacInt32(p), ReadMacInt32(p + 4), ReadMacInt32(p + 8)); |
455 |
|
456 |
case kSoundComponentSetInfoSelect: |
457 |
return AudioSetInfo(ReadMacInt32(p), ReadMacInt32(p + 4), ReadMacInt32(p + 8)); |
458 |
|
459 |
case kSoundComponentPlaySourceBufferSelect: |
460 |
D(bug(" PlaySourceBuffer\n")); |
461 |
r.d[0] = ReadMacInt32(p); |
462 |
r.a[0] = ReadMacInt32(p + 4); |
463 |
r.a[1] = ReadMacInt32(p + 8); |
464 |
r.a[2] = AudioStatus.mixer; |
465 |
Execute68k(audio_data + adatPlaySourceBuffer, &r); |
466 |
D(bug(" returns %08lx\n", r.d[0])); |
467 |
return r.d[0]; |
468 |
|
469 |
default: |
470 |
return badComponentSelector; |
471 |
} |
472 |
} |