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542e55a06b
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10 Commits

Author SHA1 Message Date
Volker Ruppert
542e55a06b Method startwaveplayback() now completely replaced by set_pcm_params(). 2015-02-01 12:33:21 +00:00
Volker Ruppert
7dbb5185bf ALSA / OSS sound modules: startwaveplayback() rewritten to set_pcm_params() 
and some related cleanups.
TODO: Replace startwaveplayback() completely.
 2015-01-31 10:48:22 +00:00
Volker Ruppert
d2a85e576f Some work on the lowlevel sound code 
- Moved audio buffer code and the pcm_callback function to soundlow.cc.
- Added framework for the mixer thread.
 2015-01-30 22:52:56 +00:00
Volker Ruppert
38f85eaacb PCM volume now applied to the output packet in the format conversion code. 2015-01-27 19:33:28 +00:00
Volker Ruppert
12d60f5aaf Some work on the lowlevel sound code. 
- soundlow: prepared code for 2 pcm parameter sets:
            emulated: requested by sendwavepacket()
            real: used for the sound output
- soundsdl: startwaveplayback() rewritten to set_pcm_data().
- soundmod: some beep init code fixes.
 2015-01-26 21:10:51 +00:00
Volker Ruppert
10cf06afbd Added pcm format conversion support to the win32 and OSX sound modules. 
Changed name of the pcm conversion method and minor cleanups.
 2015-01-25 11:45:13 +00:00
Volker Ruppert
2c621601cb Moved wave format conversion code to the sound lowlevel base class and added 
format conversion support to the ALSA and OSS sound modules.
 2015-01-24 21:01:45 +00:00
Volker Ruppert
e37498025e Some small changes in the SDL sound module. 
- Store conversion multiplier in the C++ class.
- Moved wave callback structure to soundlow.h for future use.
- Removed unused methods.
 2015-01-23 19:10:49 +00:00
Volker Ruppert
fe49c73a6b Some work on the lowlevel sound support. 
- Define new structure bx_pcm_param_t and use it as a parameter for the method
  sendwavepacket(). The method startwavepacket() is now called from
  sendwavepacket() in case of a parameter change (temporary solution).
- soundsdl: Replaced waveready() call by some more accurate code for buffer
            space check in sendwavepacket().
- soundsdl: Moved code for reading from audio buffer to a new function.
- soundsdl: Temporarily increase the audio buffer size.
- Preparing the SB16 code for the OPL emulation port from DOSBox.
 2015-01-11 20:13:50 +00:00
Volker Ruppert
fba9145f66 Moved sources of the sound lowlevel base class ('dummy' driver) to separate files. 2014-11-24 18:25:14 +00:00