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21 Commits

Author SHA1 Message Date
Ryan C. Gordon 063c9d40d7 audio: Replaced older resamplers in SDL_AudioCVT with the new ones. 2017-01-09 06:00:58 -05:00
Ryan C. Gordon 38854e0333 audio: Improvements in channel conversion code. 2017-01-08 16:18:49 -05:00
Ryan C. Gordon d005dc21d3 audio: Patched to compile with libsamplerate support. 2017-01-08 14:23:15 -05:00
Ryan C. Gordon 19e937fc2e audio: libsamplerate loading now happens once at init time. 2017-01-08 14:18:03 -05:00
Ryan C. Gordon 98cc9d10d3 Fixed coding style on a function signature. 2017-01-08 14:17:09 -05:00
Sam Lantinga df25258a1e Added configure and cmake support for libsamplerate 2017-01-06 20:43:53 -08:00
Ryan C. Gordon c5825b698d audio: Don't call a NULL function pointer when clearing audio streams. 
(Partially?) fixes Bugzilla #3547.
 2017-01-06 21:23:51 -05:00
Sam Lantinga cbe44f7ff1 Added support for using libsamplerate to do audio resampling 2017-01-06 02:16:26 -08:00
Sam Lantinga 3443dc19f9 Don't do any audio conversion if none is necessary 2017-01-05 23:53:46 -08:00
Ryan C. Gordon 992124d4de audio: Fixed SDL_AudioStreamGet() function parameters. 
There was a draft of this where it did audio conversion into the final buffer,
if there was enough room available past what you asked for, but that interface
got removed, so the parameters didn't make sense (and we were using the
wrong one in any case, too!).
 2017-01-06 01:02:58 -05:00
Ryan C. Gordon 3761b5f60b Fixed a few compiler warnings. 2017-01-05 20:11:19 -05:00
Ryan C. Gordon 30178a9b24 audio: Added SDL_AudioStream. Non-power-of-two resampling now works! 2017-01-05 19:29:38 -05:00
Ryan C. Gordon f12ab8f2b3 audio: More effort to improve and simplify audio resamplers. 2017-01-05 19:12:20 -05:00
Sam Lantinga 45b774e3f7 Updated copyright for 2017 2017-01-01 18:33:28 -08:00
Philipp Wiesemann 6380d5c24e Fixed audio conversion for unsigned 16 bit data. 2016-11-07 21:10:01 +01:00
Sam Lantinga 6ed8213049 Fixed Windows build 2016-11-05 01:52:28 -07:00
Ryan C. Gordon a17abf10b7 Also patched to compile on C89 compilers. 2016-11-05 03:56:55 -04:00
Ryan C. Gordon 067f0c8482 Patched to compile on C89 compilers. 2016-11-05 03:53:59 -04:00
Ryan C. Gordon f3456e9a93 Reworked audio converter code. 
This no longer uses a script to generate code for every possible type
conversion or resampler. This caused a bloat in binary size and and compile
times. Now we use a handful of more generic functions and assume staying in
the CPU cache is the most important thing anyhow.

This shrinks the size of the final build (in this case: macOS X amd64, -Os to
optimize for size) by 15%. When compiling on a single core, build times drop
by about 15% too (although the previous cost was largely hidden by multicore
builds).
 2016-11-05 02:34:38 -04:00
Sam Lantinga 42065e785d Updated copyright to 2016 2016-01-02 10:10:34 -08:00
Philipp Wiesemann 0e45984fa0 Fixed crash if initialization of EGL failed but was tried again later. 
The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly
uninitialized data structure if loading the library first failed. A later try to
use EGL then skipped initialization and assumed it was previously successful
because the data structure now already existed. This led to at least one crash
in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was
dereferenced to make a call to eglBindAPI().
 2015-06-21 17:33:46 +02:00