mirror of
https://github.com/libretro/snes9x.git
synced 2024-12-03 14:50:57 +00:00
APU: Big refactor.
Remove 8-bit, Mono, and Reverse Stereo options.
This commit is contained in:
Brandon Wright
parent
2f646879d3
commit
aebfc85cdf
836
apu/apu.cpp
836
apu/apu.cpp
File diff suppressed because it is too large
Load Diff
@ -62,7 +62,7 @@ class HermiteResampler : public Resampler
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clear (void)
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{
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ring_buffer::clear ();
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r_frac = 1.0;
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r_frac = 0.0;
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r_left [0] = r_left [1] = r_left [2] = r_left [3] = 0;
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r_right[0] = r_right[1] = r_right[2] = r_right[3] = 0;
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}
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@ -138,7 +138,7 @@ class HermiteResampler : public Resampler
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return (ring_buffer::space_filled() + sizeof(short) - 1) / sizeof(short);
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}
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return (int) floor (((size >> 2) - r_frac) / r_step) * 2;
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return (int) trunc (((size >> 2) - r_frac) / r_step) * 2;
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}
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};
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@ -85,17 +85,17 @@ bool S9xAlsaSoundDriver::open_device()
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}
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printf (" --> (%s, %s, %dhz, %d ms)...\n",
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Settings.SixteenBitSound ? "16-bit" : "8-bit",
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Settings.Stereo ? "Stereo" : "Mono",
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"16-bit",
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"Stereo",
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Settings.SoundPlaybackRate,
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gui_config->sound_buffer_size);
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snd_pcm_hw_params_alloca (&hw_params);
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snd_pcm_hw_params_any (pcm, hw_params);
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snd_pcm_hw_params_set_format (pcm, hw_params, Settings.SixteenBitSound ? SND_PCM_FORMAT_S16 : SND_PCM_FORMAT_U8);
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snd_pcm_hw_params_set_format (pcm, hw_params, SND_PCM_FORMAT_S16);
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snd_pcm_hw_params_set_access (pcm, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED);
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snd_pcm_hw_params_set_rate_resample (pcm, hw_params, 0);
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snd_pcm_hw_params_set_channels (pcm, hw_params, Settings.Stereo ? 2 : 1);
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snd_pcm_hw_params_set_channels (pcm, hw_params, 2);
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snd_pcm_hw_params_get_rate_min (hw_params, &min, NULL);
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snd_pcm_hw_params_get_rate_max (hw_params, &max, NULL);
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@ -190,14 +190,14 @@ S9xAlsaSoundDriver::samples_available ()
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{
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// Using rate control, we should always keep the emulator's sound buffers empty to
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// maintain an accurate measurement.
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if (frames < (S9xGetSampleCount () >> (Settings.Stereo ? 1 : 0)))
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if (frames < (S9xGetSampleCount () >> 1))
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{
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S9xClearSamples ();
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return;
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}
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}
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frames = MIN (frames, S9xGetSampleCount () >> (Settings.Stereo ? 1 : 0));
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frames = MIN (frames, S9xGetSampleCount () >> 1);
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bytes = snd_pcm_frames_to_bytes (pcm, frames);
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@ -212,7 +212,7 @@ S9xAlsaSoundDriver::samples_available ()
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sound_buffer_size = bytes;
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}
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S9xMixSamples (sound_buffer, frames << (Settings.Stereo ? 1 : 0));
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S9xMixSamples (sound_buffer, frames * 2);
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frames_written = 0;
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@ -66,10 +66,7 @@ bool S9xOSSSoundDriver::open_device()
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output_buffer_size = (gui_config->sound_buffer_size * Settings.SoundPlaybackRate) / 1000;
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if (Settings.Stereo)
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output_buffer_size *= 2;
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if (Settings.SixteenBitSound)
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output_buffer_size *= 2;
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output_buffer_size *= 4;
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if (output_buffer_size < 256)
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output_buffer_size = 256;
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@ -106,35 +103,16 @@ bool S9xOSSSoundDriver::open_device()
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printf ("OK\n");
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if (Settings.SixteenBitSound)
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{
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printf (" --> (Format: 16-bit)...");
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printf (" --> (Format: 16-bit)...");
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temp = AFMT_S16_LE;
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if (ioctl (filedes, SNDCTL_DSP_SETFMT, &temp) < 0)
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goto close_fail;
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}
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else
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{
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printf (" --> (Format: 8-bit)...");
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temp = AFMT_U8;
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if (ioctl (filedes, SNDCTL_DSP_SETFMT, &temp) < 0)
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goto close_fail;
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}
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temp = AFMT_S16_LE;
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if (ioctl (filedes, SNDCTL_DSP_SETFMT, &temp) < 0)
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goto close_fail;
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printf ("OK\n");
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if (Settings.Stereo)
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{
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temp = 2;
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printf (" --> (Stereo)...");
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}
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else
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{
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temp = 1;
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printf (" --> (Mono)...");
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}
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temp = 2;
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printf (" --> (Stereo)...");
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if (ioctl (filedes, SNDCTL_DSP_CHANNELS, &temp) < 0)
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goto close_fail;
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@ -160,9 +138,7 @@ bool S9xOSSSoundDriver::open_device()
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printf (" --> (Buffer size: %d bytes, %dms latency)...",
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output_buffer_size,
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(((output_buffer_size * 1000) >> (Settings.Stereo ? 1 : 0))
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>> (Settings.SixteenBitSound ? 1 : 0))
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/ (Settings.SoundPlaybackRate));
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(output_buffer_size * 250) / Settings.SoundPlaybackRate);
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printf ("OK\n");
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@ -203,29 +179,28 @@ S9xOSSSoundDriver::samples_available ()
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{
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// Using rate control, we should always keep the emulator's sound buffers empty to
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// maintain an accurate measurement.
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if (samples_to_write > (info.bytes >> (Settings.SixteenBitSound ? 1 : 0)))
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if (samples_to_write > (info.bytes >> 1))
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{
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S9xClearSamples ();
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return;
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}
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}
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samples_to_write = MIN (info.bytes >> (Settings.SixteenBitSound ? 1 : 0),
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samples_to_write);
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samples_to_write = MIN (info.bytes >> 1, samples_to_write) & ~1;
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if (samples_to_write < 0)
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return;
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if (sound_buffer_size < samples_to_write << (Settings.SixteenBitSound ? 1 : 0))
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if (sound_buffer_size < samples_to_write * 2)
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{
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sound_buffer = (uint8 *) realloc (sound_buffer, samples_to_write << (Settings.SixteenBitSound ? 1 : 0));
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sound_buffer_size = samples_to_write << (Settings.SixteenBitSound ? 1 : 0);
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sound_buffer = (uint8 *) realloc (sound_buffer, samples_to_write * 2);
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sound_buffer_size = samples_to_write * 2;
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}
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S9xMixSamples (sound_buffer, samples_to_write);
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bytes_written = 0;
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bytes_to_write = samples_to_write << (Settings.SixteenBitSound ? 1 : 0);
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bytes_to_write = samples_to_write * 2;
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while (bytes_to_write > bytes_written)
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{
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@ -10,7 +10,7 @@
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static inline int
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frames_to_bytes (int frames)
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{
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return (frames * (Settings.SixteenBitSound ? 2 : 1) * (Settings.Stereo ? 2 : 1));
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return frames * 4;
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}
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static void
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@ -106,8 +106,8 @@ bool S9xPortAudioSoundDriver::open_device()
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audio_stream = NULL;
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}
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param.channelCount = Settings.Stereo ? 2 : 1;
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param.sampleFormat = Settings.SixteenBitSound ? paInt16 : paUInt8;
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param.channelCount = 2;
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param.sampleFormat = paInt16;
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param.hostApiSpecificStreamInfo = NULL;
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printf ("PortAudio sound driver initializing...\n");
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@ -200,14 +200,14 @@ S9xPortAudioSoundDriver::samples_available ()
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{
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// Using rate control, we should always keep the emulator's sound buffers empty to
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// maintain an accurate measurement.
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if (frames < (S9xGetSampleCount () >> (Settings.Stereo ? 1 : 0)))
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if (frames < (S9xGetSampleCount () >> 1))
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{
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S9xClearSamples ();
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return;
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}
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}
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frames = MIN (frames, S9xGetSampleCount () >> (Settings.Stereo ? 1 : 0));
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frames = MIN (frames, S9xGetSampleCount () >> 1);
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bytes = frames_to_bytes (frames);
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if (sound_buffer_size < bytes || sound_buffer == NULL)
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@ -216,7 +216,7 @@ S9xPortAudioSoundDriver::samples_available ()
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sound_buffer_size = bytes;
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}
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S9xMixSamples (sound_buffer, frames << (Settings.Stereo ? 1 : 0));
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S9xMixSamples (sound_buffer, frames << 1);
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Pa_WriteStream (audio_stream, sound_buffer, frames);
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}
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@ -11,13 +11,12 @@
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#include <sys/time.h>
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#include <fcntl.h>
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static void
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pulse_samples_available (void *data)
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static void pulse_samples_available(void *data)
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{
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((S9xPulseSoundDriver *) data)->samples_available ();
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((S9xPulseSoundDriver *)data)->samples_available();
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}
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S9xPulseSoundDriver::S9xPulseSoundDriver ()
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S9xPulseSoundDriver::S9xPulseSoundDriver()
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{
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mainloop = NULL;
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context = NULL;
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@ -25,94 +24,85 @@ S9xPulseSoundDriver::S9xPulseSoundDriver ()
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buffer_size = 0;
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}
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void
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S9xPulseSoundDriver::init ()
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void S9xPulseSoundDriver::init()
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{
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}
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void
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S9xPulseSoundDriver::terminate ()
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void S9xPulseSoundDriver::terminate()
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{
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S9xSetSamplesAvailableCallback (NULL, NULL);
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S9xSetSamplesAvailableCallback(NULL, NULL);
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if (mainloop)
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pa_threaded_mainloop_stop (mainloop);
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pa_threaded_mainloop_stop(mainloop);
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if (stream)
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{
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pa_stream_disconnect (stream);
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pa_stream_unref (stream);
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pa_stream_disconnect(stream);
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pa_stream_unref(stream);
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}
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if (context)
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{
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pa_context_disconnect (context);
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pa_context_unref (context);
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pa_context_disconnect(context);
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pa_context_unref(context);
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}
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if (mainloop)
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{
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pa_threaded_mainloop_free (mainloop);
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pa_threaded_mainloop_free(mainloop);
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}
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}
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void
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S9xPulseSoundDriver::start ()
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void S9xPulseSoundDriver::start()
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{
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}
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void
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S9xPulseSoundDriver::stop ()
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void S9xPulseSoundDriver::stop()
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{
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}
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void
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S9xPulseSoundDriver::lock ()
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void S9xPulseSoundDriver::lock()
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{
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pa_threaded_mainloop_lock (mainloop);
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pa_threaded_mainloop_lock(mainloop);
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}
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void
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S9xPulseSoundDriver::unlock ()
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void S9xPulseSoundDriver::unlock()
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{
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pa_threaded_mainloop_unlock (mainloop);
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pa_threaded_mainloop_unlock(mainloop);
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}
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void
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S9xPulseSoundDriver::wait ()
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void S9xPulseSoundDriver::wait()
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{
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pa_threaded_mainloop_wait (mainloop);
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pa_threaded_mainloop_wait(mainloop);
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}
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static void
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context_state_cb (pa_context *c, void *userdata)
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static void context_state_cb(pa_context *c, void *userdata)
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{
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S9xPulseSoundDriver *driver = (S9xPulseSoundDriver *) userdata;
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S9xPulseSoundDriver *driver = (S9xPulseSoundDriver *)userdata;
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int state;
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state = pa_context_get_state (c);
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state = pa_context_get_state(c);
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if (state == PA_CONTEXT_READY ||
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state == PA_CONTEXT_FAILED ||
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if (state == PA_CONTEXT_READY ||
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state == PA_CONTEXT_FAILED ||
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state == PA_CONTEXT_TERMINATED)
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{
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pa_threaded_mainloop_signal (driver->mainloop, 0);
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pa_threaded_mainloop_signal(driver->mainloop, 0);
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}
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}
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static void
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stream_state_callback (pa_stream *p, void *userdata)
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static void stream_state_callback(pa_stream *p, void *userdata)
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{
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S9xPulseSoundDriver *driver = (S9xPulseSoundDriver *) userdata;
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S9xPulseSoundDriver *driver = (S9xPulseSoundDriver *)userdata;
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int state;
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state = pa_stream_get_state (p);
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state = pa_stream_get_state(p);
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if (state == PA_STREAM_READY ||
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state == PA_STREAM_FAILED ||
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if (state == PA_STREAM_READY ||
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state == PA_STREAM_FAILED ||
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state == PA_STREAM_TERMINATED)
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{
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pa_threaded_mainloop_signal (driver->mainloop, 0);
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pa_threaded_mainloop_signal(driver->mainloop, 0);
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}
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}
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@ -123,154 +113,154 @@ bool S9xPulseSoundDriver::open_device()
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pa_buffer_attr buffer_attr;
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const pa_buffer_attr *actual_buffer_attr;
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ss.channels = Settings.Stereo ? 2 : 1;
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ss.format = Settings.SixteenBitSound ? PA_SAMPLE_S16NE : PA_SAMPLE_U8;
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ss.rate = Settings.SoundPlaybackRate;
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ss.channels = 2;
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ss.format = PA_SAMPLE_S16NE;
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ss.rate = Settings.SoundPlaybackRate;
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buffer_attr.fragsize = -1;
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buffer_attr.tlength = pa_usec_to_bytes (gui_config->sound_buffer_size * 1000, &ss);
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buffer_attr.maxlength = -1;
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buffer_attr.minreq = -1;
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buffer_attr.prebuf = -1;
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buffer_attr.fragsize = -1;
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buffer_attr.tlength = pa_usec_to_bytes(gui_config->sound_buffer_size * 1000, &ss);
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buffer_attr.maxlength = buffer_attr.tlength * 2;
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buffer_attr.minreq = -1;
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buffer_attr.prebuf = -1;
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printf ("PulseAudio sound driver initializing...\n");
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printf("PulseAudio sound driver initializing...\n");
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printf (" --> (%dhz, %s %s, %dms)...",
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Settings.SoundPlaybackRate,
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Settings.SixteenBitSound ? "16-bit" : "8-bit",
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Settings.Stereo ? "Stereo" : "Mono",
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gui_config->sound_buffer_size);
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fflush (stdout);
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printf(" --> (%dhz, %s %s, %dms)...",
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Settings.SoundPlaybackRate,
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"16-bit",
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"Stereo",
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gui_config->sound_buffer_size);
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fflush(stdout);
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mainloop = pa_threaded_mainloop_new ();
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mainloop = pa_threaded_mainloop_new();
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if (!mainloop)
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{
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fprintf (stderr, "Failed to create mainloop.\n");
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fprintf(stderr, "Failed to create mainloop.\n");
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goto error0;
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}
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context = pa_context_new (pa_threaded_mainloop_get_api (mainloop), "Snes9x");
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context = pa_context_new(pa_threaded_mainloop_get_api(mainloop), "Snes9x");
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if (!context)
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goto error1;
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pa_context_set_state_callback (context, context_state_cb, this);
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if ((err = pa_context_connect (context, NULL, PA_CONTEXT_NOFLAGS, NULL)) != 0)
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pa_context_set_state_callback(context, context_state_cb, this);
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if ((err = pa_context_connect(context, NULL, PA_CONTEXT_NOFLAGS, NULL)) != 0)
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goto error2;
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lock ();
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lock();
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if ((err = pa_threaded_mainloop_start (mainloop)) != 0)
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if ((err = pa_threaded_mainloop_start(mainloop)) != 0)
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goto error2;
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wait ();
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wait();
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if ((err = pa_context_get_state (context)) != PA_CONTEXT_READY)
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if ((err = pa_context_get_state(context)) != PA_CONTEXT_READY)
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{
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printf ("Coundn't create context: State: %d\n", err);
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printf("Coundn't create context: State: %d\n", err);
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goto error2;
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}
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stream = pa_stream_new (context, "Game", &ss, NULL);
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stream = pa_stream_new(context, "Game", &ss, NULL);
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if (!stream)
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goto error2;
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pa_stream_set_state_callback (stream, stream_state_callback, this);
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pa_stream_set_state_callback(stream, stream_state_callback, this);
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if (pa_stream_connect_playback (stream,
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NULL,
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&buffer_attr,
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PA_STREAM_ADJUST_LATENCY,
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NULL,
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NULL) < 0)
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if (pa_stream_connect_playback(stream,
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NULL,
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&buffer_attr,
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PA_STREAM_ADJUST_LATENCY,
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NULL,
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NULL) < 0)
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goto error3;
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wait ();
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wait();
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if (pa_stream_get_state (stream) != PA_STREAM_READY)
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if (pa_stream_get_state(stream) != PA_STREAM_READY)
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{
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goto error3;
|
||||
}
|
||||
|
||||
actual_buffer_attr = pa_stream_get_buffer_attr (stream);
|
||||
actual_buffer_attr = pa_stream_get_buffer_attr(stream);
|
||||
|
||||
buffer_size = actual_buffer_attr->tlength;
|
||||
|
||||
printf ("OK\n");
|
||||
printf("OK\n");
|
||||
|
||||
S9xSetSamplesAvailableCallback (pulse_samples_available, this);
|
||||
S9xSetSamplesAvailableCallback(pulse_samples_available, this);
|
||||
|
||||
unlock ();
|
||||
unlock();
|
||||
|
||||
return true;
|
||||
|
||||
error3:
|
||||
pa_stream_disconnect (stream);
|
||||
pa_stream_unref (stream);
|
||||
pa_stream_disconnect(stream);
|
||||
pa_stream_unref(stream);
|
||||
error2:
|
||||
pa_context_disconnect (context);
|
||||
pa_context_unref (context);
|
||||
unlock ();
|
||||
pa_context_disconnect(context);
|
||||
pa_context_unref(context);
|
||||
unlock();
|
||||
error1:
|
||||
pa_threaded_mainloop_free (mainloop);
|
||||
pa_threaded_mainloop_free(mainloop);
|
||||
error0:
|
||||
printf ("Failed: %s\n", pa_strerror (err));
|
||||
printf("Failed: %s\n", pa_strerror(err));
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
void
|
||||
S9xPulseSoundDriver::samples_available ()
|
||||
void S9xPulseSoundDriver::samples_available()
|
||||
{
|
||||
size_t bytes;
|
||||
int samples;
|
||||
const pa_buffer_attr *buffer_attr;
|
||||
void *output_buffer = NULL;
|
||||
|
||||
lock ();
|
||||
bytes = pa_stream_writable_size (stream);
|
||||
buffer_attr = pa_stream_get_buffer_attr (stream);
|
||||
unlock ();
|
||||
lock();
|
||||
bytes = pa_stream_writable_size(stream);
|
||||
buffer_attr = pa_stream_get_buffer_attr(stream);
|
||||
unlock();
|
||||
|
||||
buffer_size = buffer_attr->tlength;
|
||||
|
||||
if (Settings.DynamicRateControl)
|
||||
{
|
||||
S9xUpdateDynamicRate (bytes, buffer_size);
|
||||
S9xUpdateDynamicRate(bytes, buffer_size);
|
||||
}
|
||||
|
||||
S9xFinalizeSamples ();
|
||||
S9xFinalizeSamples();
|
||||
|
||||
samples = S9xGetSampleCount ();
|
||||
samples = S9xGetSampleCount();
|
||||
|
||||
if (Settings.DynamicRateControl)
|
||||
{
|
||||
if ((int) bytes < (samples << (Settings.SixteenBitSound ? 1 : 0)))
|
||||
if ((int)bytes < (samples * 2))
|
||||
{
|
||||
S9xClearSamples ();
|
||||
S9xClearSamples();
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
bytes = MIN ((int) bytes, (samples << (Settings.SixteenBitSound ? 1 : 0)));
|
||||
bytes = MIN((int)bytes, samples * 2) & ~1;
|
||||
|
||||
if (!bytes)
|
||||
return;
|
||||
|
||||
lock ();
|
||||
lock();
|
||||
|
||||
if (pa_stream_begin_write (stream, &output_buffer, &bytes) != 0)
|
||||
if (pa_stream_begin_write(stream, &output_buffer, &bytes) != 0)
|
||||
{
|
||||
pa_stream_flush (stream, NULL, NULL);
|
||||
unlock ();
|
||||
pa_stream_flush(stream, NULL, NULL);
|
||||
unlock();
|
||||
return;
|
||||
}
|
||||
|
||||
if (bytes <= 0 || !output_buffer)
|
||||
{
|
||||
unlock ();
|
||||
unlock();
|
||||
return;
|
||||
}
|
||||
|
||||
S9xMixSamples ((uint8 *) output_buffer, bytes >> (Settings.SixteenBitSound ? 1 : 0));
|
||||
pa_stream_write (stream, output_buffer, bytes, NULL, 0, PA_SEEK_RELATIVE);
|
||||
S9xMixSamples((uint8 *)output_buffer, bytes >> 1);
|
||||
pa_stream_write(stream, output_buffer, bytes, NULL, 0, PA_SEEK_RELATIVE);
|
||||
|
||||
unlock ();
|
||||
unlock();
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user