Commit Graph

13 Commits

Author SHA1 Message Date
Volker Ruppert
add5b1e61d Some work on the Bochs sound support.
- OPL3: Added support to change the samplerate of the generator.
- SDL sound: convert wave packet to 16 Bit signed stereo format.
- Increased the maximum size of a single wave packet for playbck/recording.
2015-01-22 20:28:14 +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
7bd5eeaa87 Mix the wave input using SDL_MixAudio() (addition and clipping).
NOTE: This function is not correct in case of more than 2 active sources.
2015-01-11 07:57:35 +00:00
Volker Ruppert
15ccdef0d1 Fixed register/unregister wave callback (found while testing OPL code). 2015-01-10 19:36:50 +00:00
Volker Ruppert
fe953485b1 Some more work in the lowlevel sound code.
- Reworked wave callback code to support 2 input sources (no mixing yet).
- Fixed SDL sound output.
- Beep generator fixes.
- Prepared the SB16 code for FM OPL output support (to be ported from DOSBox).
2015-01-08 19:12:01 +00:00
Volker Ruppert
2ca192eef7 Some more work in the lowlevel sound code.
- Renamed wavedata callback type.
- Handle sample rate in the beep generator (TODO: handle data format).
- Don't call waveready() in the SB16 code.
- Attempt to fix SDL2 wave output using SDL_LockAudio() / SDL_UnlockAudio().
- SDL specific code in the beep thread no longer needed.
2015-01-05 22:07:03 +00:00
Volker Ruppert
0c205fce26 Some work in the lowlevel sound code.
- Added framework for polling wave data and use it for beep output in sdl.
- Some work in the beep thread code (to be continued).
- Moved macros required for multithreading to bochs.h.
2015-01-04 21:12:41 +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
Volker Ruppert
9805324c42 Minor changes in the sound lowlevel code. 2014-11-21 23:03:19 +00:00
Volker Ruppert
3c0ad43092 Continued preparing Bochs for SDL2 support
- added new symbol BX_WITH_SDL2 and prepared build system
- TODO #1: add new option --with-sdl2 to configure script
- TODO #2: add new file sdl2.cc (porting seems hard to do - writing from scratch
  might be better)
2014-06-23 19:37:58 +00:00
Volker Ruppert
3e27308899 Allow to specify the platform-default sound driver directly
- driver names "oss", "osx" and "win" can now be used instead of "default"
- updated sound initialization messages
2013-07-25 18:47:11 +00:00
Volker Ruppert
192aa1f369 Added global sound control option in bochsrc and config interface
- added 'sound' option to select the driver and the wave output device
  (see bochsrc sample for details)
- the wave device option of sb16 and es1370 is now only used to set up the
  wave input device (if necessary)
- cleaned up the speaker code to initialize the 'sound' case correctly
2013-06-24 19:19:12 +00:00
Volker Ruppert
095fd7d18a - added SDL sound support (wave output only) 2012-06-09 10:12:05 +00:00