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cebix |
1.1 |
/* |
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* audio.cpp - Audio support |
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* |
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* Basilisk II (C) 1997-1999 Christian Bauer |
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* 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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* SEE ALSO |
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* Inside Macintosh: Sound, chapter 5 "Sound Components" |
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*/ |
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#include "sysdeps.h" |
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#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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#define DEBUG 0 |
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#include "debug.h" |
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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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bool AudioAvailable = false; // Flag: audio output available (from the software point of view) |
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/* |
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* Get audio info |
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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)); |
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M68kRegisters r; |
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int i; |
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switch (selector) { |
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case siSampleSize: |
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WriteMacInt16(infoPtr, AudioStatus.sample_size); |
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break; |
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case siSampleSizeAvailable: { |
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r.d[0] = audio_num_sample_sizes * 2; |
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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; |
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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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case siNumberChannels: |
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WriteMacInt16(infoPtr, AudioStatus.channels); |
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break; |
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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() |
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uint32 h = r.a[0]; |
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if (h == 0) |
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return memFullErr; |
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WriteMacInt16(infoPtr + sil_count, audio_num_channel_counts); |
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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_channel_counts; i++) |
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WriteMacInt16(sp + i*2, audio_channel_counts[i]); |
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break; |
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} |
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case siSampleRate: |
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WriteMacInt32(infoPtr, AudioStatus.sample_rate); |
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break; |
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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; |
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WriteMacInt16(infoPtr + sil_count, audio_num_sample_rates); |
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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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} |
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case siSpeakerMute: |
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WriteMacInt16(infoPtr, audio_get_main_mute()); |
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break; |
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case siSpeakerVolume: |
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WriteMacInt32(infoPtr, audio_get_main_volume()); |
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break; |
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case siHardwareMute: |
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WriteMacInt16(infoPtr, audio_get_dac_mute()); |
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break; |
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case siHardwareVolume: |
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WriteMacInt32(infoPtr, audio_get_dac_volume()); |
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break; |
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case siHardwareBusy: |
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WriteMacInt16(infoPtr, AudioStatus.num_sources != 0); |
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break; |
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case siHardwareVolumeSteps: |
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WriteMacInt16(infoPtr, 64); |
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break; |
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default: // Delegate to Apple Mixer |
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if (AudioStatus.mixer == 0) |
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return badComponentSelector; |
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M68kRegisters r; |
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r.a[0] = infoPtr; |
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r.d[0] = selector; |
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r.a[1] = sourceID; |
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r.a[2] = AudioStatus.mixer; |
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Execute68k(audio_data + adatGetInfo, &r); |
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D(bug(" delegated to Apple Mixer, returns %08lx\n", r.d[0])); |
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return r.d[0]; |
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} |
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return noErr; |
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} |
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/* |
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* Set audio info |
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*/ |
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static int32 AudioSetInfo(uint32 infoPtr, uint32 selector, uint32 sourceID) |
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{ |
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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)); |
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M68kRegisters r; |
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int i; |
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switch (selector) { |
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case siSampleSize: |
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D(bug(" set sample size %08lx\n", infoPtr)); |
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if (AudioStatus.num_sources) |
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return siDeviceBusyErr; |
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for (i=0; i<audio_num_sample_sizes; i++) |
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if (audio_sample_sizes[i] == infoPtr) { |
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audio_set_sample_size(i); |
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return noErr; |
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} |
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return siInvalidSampleSize; |
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case siSampleRate: |
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D(bug(" set sample rate %08lx\n", infoPtr)); |
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if (AudioStatus.num_sources) |
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return siDeviceBusyErr; |
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for (i=0; i<audio_num_sample_rates; i++) |
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if (audio_sample_rates[i] == infoPtr) { |
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audio_set_sample_rate(i); |
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return noErr; |
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} |
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return siInvalidSampleRate; |
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case siNumberChannels: |
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D(bug(" set number of channels %08lx\n", infoPtr)); |
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if (AudioStatus.num_sources) |
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return siDeviceBusyErr; |
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for (i=0; i<audio_num_channel_counts; i++) |
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if (audio_channel_counts[i] == infoPtr) { |
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audio_set_channels(i); |
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return noErr; |
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} |
| 197 |
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return badChannel; |
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| 199 |
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case siSpeakerMute: |
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audio_set_main_mute((uint16)infoPtr); |
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break; |
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| 203 |
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case siSpeakerVolume: |
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D(bug(" set speaker volume %08lx\n", infoPtr)); |
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audio_set_main_volume(infoPtr); |
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break; |
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case siHardwareMute: |
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audio_set_dac_mute((uint16)infoPtr); |
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break; |
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case siHardwareVolume: |
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D(bug(" set hardware volume %08lx\n", infoPtr)); |
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audio_set_dac_volume(infoPtr); |
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break; |
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default: // Delegate to Apple Mixer |
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if (AudioStatus.mixer == 0) |
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return badComponentSelector; |
| 220 |
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r.a[0] = infoPtr; |
| 221 |
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r.d[0] = selector; |
| 222 |
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r.a[1] = sourceID; |
| 223 |
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r.a[2] = AudioStatus.mixer; |
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Execute68k(audio_data + adatSetInfo, &r); |
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D(bug(" delegated to Apple Mixer, returns %08lx\n", r.d[0])); |
| 226 |
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return r.d[0]; |
| 227 |
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} |
| 228 |
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return noErr; |
| 229 |
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} |
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| 232 |
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/* |
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* Sound output component dispatch |
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*/ |
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| 236 |
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int32 AudioDispatch(uint32 params, uint32 globals) |
| 237 |
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{ |
| 238 |
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D(bug("AudioDispatch params %08lx (size %d), what %d\n", params, ReadMacInt8(params + cp_paramSize), (int16)ReadMacInt16(params + cp_what))); |
| 239 |
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M68kRegisters r; |
| 240 |
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uint32 p = params + cp_params; |
| 241 |
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| 242 |
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switch ((int16)ReadMacInt16(params + cp_what)) { |
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// Basic component functions |
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case kComponentOpenSelect: |
| 245 |
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if (audio_data == 0) { |
| 246 |
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| 247 |
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// Allocate global data area |
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r.d[0] = SIZEOF_adat; |
| 249 |
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Execute68kTrap(0xa71e, &r); // NewPtrSysClear() |
| 250 |
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if (r.a[0] == 0) |
| 251 |
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return memFullErr; |
| 252 |
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audio_data = r.a[0]; |
| 253 |
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D(bug(" global data at %08lx\n", audio_data)); |
| 254 |
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| 255 |
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// Put in 68k routines |
| 256 |
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int p = audio_data + adatDelegateCall; |
| 257 |
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WriteMacInt16(p, 0x598f); p += 2; // subq.l #4,sp |
| 258 |
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WriteMacInt16(p, 0x2f09); p += 2; // move.l a1,-(sp) |
| 259 |
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WriteMacInt16(p, 0x2f08); p += 2; // move.l a0,-(sp) |
| 260 |
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WriteMacInt16(p, 0x7024); p += 2; // moveq #$24,d0 |
| 261 |
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WriteMacInt16(p, 0xa82a); p += 2; // ComponentDispatch |
| 262 |
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WriteMacInt16(p, 0x201f); p += 2; // move.l (sp)+,d0 |
| 263 |
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WriteMacInt16(p, M68K_RTS); p += 2; // rts |
| 264 |
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if (p - audio_data != adatOpenMixer) |
| 265 |
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goto adat_error; |
| 266 |
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WriteMacInt16(p, 0x558f); p += 2; // subq.l #2,sp |
| 267 |
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WriteMacInt16(p, 0x2f09); p += 2; // move.l a1,-(sp) |
| 268 |
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WriteMacInt16(p, 0x2f00); p += 2; // move.l d0,-(sp) |
| 269 |
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WriteMacInt16(p, 0x2f08); p += 2; // move.l a0,-(sp) |
| 270 |
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WriteMacInt16(p, 0x203c); p += 2; // move.l #$06140018,d0 |
| 271 |
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WriteMacInt32(p, 0x06140018); p+= 4; |
| 272 |
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WriteMacInt16(p, 0xa800); p += 2; // SoundDispatch |
| 273 |
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WriteMacInt16(p, 0x301f); p += 2; // move.w (sp)+,d0 |
| 274 |
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WriteMacInt16(p, 0x48c0); p += 2; // ext.l d0 |
| 275 |
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WriteMacInt16(p, M68K_RTS); p += 2; // rts |
| 276 |
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if (p - audio_data != adatCloseMixer) |
| 277 |
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goto adat_error; |
| 278 |
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WriteMacInt16(p, 0x558f); p += 2; // subq.l #2,sp |
| 279 |
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WriteMacInt16(p, 0x2f08); p += 2; // move.l a0,-(sp) |
| 280 |
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WriteMacInt16(p, 0x203c); p += 2; // move.l #$02180018,d0 |
| 281 |
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WriteMacInt32(p, 0x02180018); p+= 4; |
| 282 |
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WriteMacInt16(p, 0xa800); p += 2; // SoundDispatch |
| 283 |
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WriteMacInt16(p, 0x301f); p += 2; // move.w (sp)+,d0 |
| 284 |
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WriteMacInt16(p, 0x48c0); p += 2; // ext.l d0 |
| 285 |
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WriteMacInt16(p, M68K_RTS); p += 2; // rts |
| 286 |
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if (p - audio_data != adatGetInfo) |
| 287 |
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goto adat_error; |
| 288 |
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WriteMacInt16(p, 0x598f); p += 2; // subq.l #4,sp |
| 289 |
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WriteMacInt16(p, 0x2f0a); p += 2; // move.l a2,-(sp) |
| 290 |
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WriteMacInt16(p, 0x2f09); p += 2; // move.l a1,-(sp) |
| 291 |
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WriteMacInt16(p, 0x2f00); p += 2; // move.l d0,-(sp) |
| 292 |
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WriteMacInt16(p, 0x2f08); p += 2; // move.l a0,-(sp) |
| 293 |
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WriteMacInt16(p, 0x2f3c); p += 2; // move.l #$000c0103,-(sp) |
| 294 |
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WriteMacInt32(p, 0x000c0103); p+= 4; |
| 295 |
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WriteMacInt16(p, 0x7000); p += 2; // moveq #0,d0 |
| 296 |
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WriteMacInt16(p, 0xa82a); p += 2; // ComponentDispatch |
| 297 |
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WriteMacInt16(p, 0x201f); p += 2; // move.l (sp)+,d0 |
| 298 |
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WriteMacInt16(p, M68K_RTS); p += 2; // rts |
| 299 |
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if (p - audio_data != adatSetInfo) |
| 300 |
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goto adat_error; |
| 301 |
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WriteMacInt16(p, 0x598f); p += 2; // subq.l #4,sp |
| 302 |
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WriteMacInt16(p, 0x2f0a); p += 2; // move.l a2,-(sp) |
| 303 |
|
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WriteMacInt16(p, 0x2f09); p += 2; // move.l a1,-(sp) |
| 304 |
|
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WriteMacInt16(p, 0x2f00); p += 2; // move.l d0,-(sp) |
| 305 |
|
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WriteMacInt16(p, 0x2f08); p += 2; // move.l a0,-(sp) |
| 306 |
|
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WriteMacInt16(p, 0x2f3c); p += 2; // move.l #$000c0104,-(sp) |
| 307 |
|
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WriteMacInt32(p, 0x000c0104); p+= 4; |
| 308 |
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WriteMacInt16(p, 0x7000); p += 2; // moveq #0,d0 |
| 309 |
|
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WriteMacInt16(p, 0xa82a); p += 2; // ComponentDispatch |
| 310 |
|
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WriteMacInt16(p, 0x201f); p += 2; // move.l (sp)+,d0 |
| 311 |
|
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WriteMacInt16(p, M68K_RTS); p += 2; // rts |
| 312 |
|
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if (p - audio_data != adatPlaySourceBuffer) |
| 313 |
|
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goto adat_error; |
| 314 |
|
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WriteMacInt16(p, 0x598f); p += 2; // subq.l #4,sp |
| 315 |
|
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WriteMacInt16(p, 0x2f0a); p += 2; // move.l a2,-(sp) |
| 316 |
|
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WriteMacInt16(p, 0x2f09); p += 2; // move.l a1,-(sp) |
| 317 |
|
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WriteMacInt16(p, 0x2f08); p += 2; // move.l a0,-(sp) |
| 318 |
|
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WriteMacInt16(p, 0x2f00); p += 2; // move.l d0,-(sp) |
| 319 |
|
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WriteMacInt16(p, 0x2f3c); p += 2; // move.l #$000c0108,-(sp) |
| 320 |
|
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WriteMacInt32(p, 0x000c0108); p+= 4; |
| 321 |
|
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WriteMacInt16(p, 0x7000); p += 2; // moveq #0,d0 |
| 322 |
|
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WriteMacInt16(p, 0xa82a); p += 2; // ComponentDispatch |
| 323 |
|
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WriteMacInt16(p, 0x201f); p += 2; // move.l (sp)+,d0 |
| 324 |
|
|
WriteMacInt16(p, M68K_RTS); p += 2; // rts |
| 325 |
|
|
if (p - audio_data != adatGetSourceData) |
| 326 |
|
|
goto adat_error; |
| 327 |
|
|
WriteMacInt16(p, 0x598f); p += 2; // subq.l #4,sp |
| 328 |
|
|
WriteMacInt16(p, 0x2f09); p += 2; // move.l a1,-(sp) |
| 329 |
|
|
WriteMacInt16(p, 0x2f08); p += 2; // move.l a0,-(sp) |
| 330 |
|
|
WriteMacInt16(p, 0x2f3c); p += 2; // move.l #$00040004,-(sp) |
| 331 |
|
|
WriteMacInt32(p, 0x00040004); p+= 4; |
| 332 |
|
|
WriteMacInt16(p, 0x7000); p += 2; // moveq #0,d0 |
| 333 |
|
|
WriteMacInt16(p, 0xa82a); p += 2; // ComponentDispatch |
| 334 |
|
|
WriteMacInt16(p, 0x201f); p += 2; // move.l (sp)+,d0 |
| 335 |
|
|
WriteMacInt16(p, M68K_RTS); p += 2; // rts |
| 336 |
|
|
if (p - audio_data != adatData) |
| 337 |
|
|
goto adat_error; |
| 338 |
|
|
} |
| 339 |
|
|
AudioAvailable = true; |
| 340 |
|
|
if (open_count == 0) |
| 341 |
|
|
audio_enter_stream(); |
| 342 |
|
|
open_count++; |
| 343 |
|
|
return noErr; |
| 344 |
|
|
|
| 345 |
|
|
adat_error: printf("FATAL: audio component data block initialization error\n"); |
| 346 |
|
|
QuitEmulator(); |
| 347 |
|
|
return openErr; |
| 348 |
|
|
|
| 349 |
|
|
case kComponentCanDoSelect: |
| 350 |
|
|
case kComponentRegisterSelect: |
| 351 |
|
|
return noErr; |
| 352 |
|
|
|
| 353 |
|
|
case kComponentVersionSelect: |
| 354 |
|
|
return 0x00010002; |
| 355 |
|
|
|
| 356 |
|
|
case kComponentCloseSelect: |
| 357 |
|
|
open_count--; |
| 358 |
|
|
if (open_count == 0) { |
| 359 |
|
|
if (AudioStatus.mixer) { |
| 360 |
|
|
// Close Apple Mixer |
| 361 |
|
|
r.a[0] = AudioStatus.mixer; |
| 362 |
|
|
Execute68k(audio_data + adatCloseMixer, &r); |
| 363 |
|
|
AudioStatus.mixer = 0; |
| 364 |
|
|
return r.d[0]; |
| 365 |
|
|
} |
| 366 |
|
|
AudioStatus.num_sources = 0; |
| 367 |
|
|
audio_exit_stream(); |
| 368 |
|
|
} |
| 369 |
|
|
return noErr; |
| 370 |
|
|
|
| 371 |
|
|
// Sound component functions |
| 372 |
|
|
case kSoundComponentInitOutputDeviceSelect: |
| 373 |
|
|
D(bug(" InitOutputDevice\n")); |
| 374 |
|
|
if (!audio_open) |
| 375 |
|
|
return noHardwareErr; |
| 376 |
|
|
if (AudioStatus.mixer) |
| 377 |
|
|
return noErr; |
| 378 |
|
|
|
| 379 |
|
|
// Init sound component data |
| 380 |
|
|
WriteMacInt32(audio_data + adatData + scd_flags, 0); |
| 381 |
|
|
WriteMacInt32(audio_data + adatData + scd_format, AudioStatus.sample_size == 16 ? 'twos' : 'raw '); |
| 382 |
|
|
WriteMacInt16(audio_data + adatData + scd_numChannels, AudioStatus.channels); |
| 383 |
|
|
WriteMacInt16(audio_data + adatData + scd_sampleSize, AudioStatus.sample_size); |
| 384 |
|
|
WriteMacInt32(audio_data + adatData + scd_sampleRate, AudioStatus.sample_rate); |
| 385 |
|
|
WriteMacInt32(audio_data + adatData + scd_sampleCount, audio_frames_per_block); |
| 386 |
|
|
WriteMacInt32(audio_data + adatData + scd_buffer, 0); |
| 387 |
|
|
WriteMacInt32(audio_data + adatData + scd_reserved, 0); |
| 388 |
|
|
WriteMacInt32(audio_data + adatStreamInfo, 0); |
| 389 |
|
|
|
| 390 |
|
|
// Open Apple Mixer |
| 391 |
|
|
r.a[0] = audio_data + adatMixer; |
| 392 |
|
|
r.d[0] = 0; |
| 393 |
|
|
r.a[1] = audio_data + adatData; |
| 394 |
|
|
Execute68k(audio_data + adatOpenMixer, &r); |
| 395 |
|
|
AudioStatus.mixer = ReadMacInt32(audio_data + adatMixer); |
| 396 |
|
|
D(bug(" OpenMixer() returns %08lx, mixer %08lx\n", r.d[0], AudioStatus.mixer)); |
| 397 |
|
|
return r.d[0]; |
| 398 |
|
|
|
| 399 |
|
|
case kSoundComponentAddSourceSelect: |
| 400 |
|
|
D(bug(" AddSource\n")); |
| 401 |
|
|
AudioStatus.num_sources++; |
| 402 |
|
|
goto delegate; |
| 403 |
|
|
|
| 404 |
|
|
case kSoundComponentRemoveSourceSelect: |
| 405 |
|
|
D(bug(" RemoveSource\n")); |
| 406 |
|
|
AudioStatus.num_sources--; |
| 407 |
|
|
goto delegate; |
| 408 |
|
|
|
| 409 |
|
|
case kSoundComponentStopSourceSelect: |
| 410 |
|
|
D(bug(" StopSource\n")); |
| 411 |
|
|
goto delegate; |
| 412 |
|
|
|
| 413 |
|
|
case kSoundComponentPauseSourceSelect: |
| 414 |
|
|
D(bug(" PauseSource\n")); |
| 415 |
|
|
delegate: // Delegate call to Apple Mixer |
| 416 |
|
|
D(bug(" delegating call to Apple Mixer\n")); |
| 417 |
|
|
r.a[0] = AudioStatus.mixer; |
| 418 |
|
|
r.a[1] = params; |
| 419 |
|
|
Execute68k(audio_data + adatDelegateCall, &r); |
| 420 |
|
|
D(bug(" returns %08lx\n", r.d[0])); |
| 421 |
|
|
return r.d[0]; |
| 422 |
|
|
|
| 423 |
|
|
case kSoundComponentStartSourceSelect: |
| 424 |
|
|
D(bug(" StartSource\n")); |
| 425 |
|
|
return noErr; |
| 426 |
|
|
|
| 427 |
|
|
case kSoundComponentGetInfoSelect: |
| 428 |
|
|
return AudioGetInfo(ReadMacInt32(p), ReadMacInt32(p + 4), ReadMacInt32(p + 8)); |
| 429 |
|
|
|
| 430 |
|
|
case kSoundComponentSetInfoSelect: |
| 431 |
|
|
return AudioSetInfo(ReadMacInt32(p), ReadMacInt32(p + 4), ReadMacInt32(p + 8)); |
| 432 |
|
|
|
| 433 |
|
|
case kSoundComponentPlaySourceBufferSelect: |
| 434 |
|
|
D(bug(" PlaySourceBuffer\n")); |
| 435 |
|
|
r.d[0] = ReadMacInt32(p); |
| 436 |
|
|
r.a[0] = ReadMacInt32(p + 4); |
| 437 |
|
|
r.a[1] = ReadMacInt32(p + 8); |
| 438 |
|
|
r.a[2] = AudioStatus.mixer; |
| 439 |
|
|
Execute68k(audio_data + adatPlaySourceBuffer, &r); |
| 440 |
|
|
D(bug(" returns %08lx\n", r.d[0])); |
| 441 |
|
|
return r.d[0]; |
| 442 |
|
|
|
| 443 |
|
|
default: |
| 444 |
|
|
return badComponentSelector; |
| 445 |
|
|
} |
| 446 |
|
|
} |
