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Sound System Rework: Phase 2

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. Performance boost
  (Completely non-blocking between Sound thread and CPU thread, in the meantime keeping them thread safe)

. Both 32KHz & 48KHz sound can be handled properly now
  (But up-sampling is still not implemented, and I don't think any game requires it.)

. Strategy adjustment
  When your PC is *NOT* capable to run the game at 100%:
  >> DSound    Could yield more fluent sound than OpenAL sometimes, but you will lose the sync between video & audio (since audio is played before video to guarantee fluency)
  >> OpenAL    Ensures video & audio are always sync'ed, but sound could be intermittent(to let slow video catch up)

. Changed default frame limit to: Auto
  (Somehow this can dramatically decrease the chance of wiimote desync in game NSMB)

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4724 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
ayuanx
2009-12-23 15:34:14 +00:00
parent 0d0a7c515f
commit 9eea60ca69
27 changed files with 358 additions and 314 deletions
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9
Source/PluginSpecs/pluginspecs_dsp.h
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@ -16,7 +16,8 @@ typedef void (*TLogv)(const char* _szMessage, int _v);
typedef const char* (*TName)(void);
typedef void (*TDebuggerBreak)(void);
typedef void (*TGenerateDSPInt)(void);
typedef unsigned int (*TAudioGetStreaming)(short* _pDestBuffer, unsigned int _numSamples);
typedef unsigned int (*TAudioGetStreaming)(short* _pDestBuffer, unsigned int _numSamples, unsigned int _sampleRate);
typedef void (*TGetSampleRate)(unsigned int &AISampleRate, unsigned int &DSPSampleRate);
typedef struct
{
@ -30,6 +31,7 @@ typedef struct
TDebuggerBreak pDebuggerBreak;
TGenerateDSPInt pGenerateDSPInterrupt;
TAudioGetStreaming pGetAudioStreaming;
TGetSampleRate pGetSampleRate;
int *pEmulatorState;
bool bWii;
bool bOnThread;
@ -95,9 +97,10 @@ EXPORT void CALL DSP_Update(int cycles);
// Function: DSP_SendAIBuffer
// Purpose: This function sends the current AI Buffer to the DSP plugin
// input: _Address : Memory-Address
// input: _Size : Size of the Buffer (always 32)
// input: _Number : Number of the Samples
// input: _Rate : Sample Rate 32000/48000
//
EXPORT void CALL DSP_SendAIBuffer(unsigned int address, int sample_rate);
EXPORT void CALL DSP_SendAIBuffer(unsigned int address, unsigned int num_samples, unsigned int sample_rate);
// __________________________________________________________________________________________________
// Function: DSP_StopSoundStream