3 Commits

Author	SHA1	Message	Date
Glenn Maynard	1bd5513698	Switch to floating-point sound internally. ... This allows us to change the volume of sounds in filters ("volume", "fade" properties) without quantizing the audio prematurely. Previously, we had a hack to apply volume changes as a mixing-time step. This can be done at any point in the filter chain now. This also means we only need to worry about clipping at the very last mixing step, instead of at every place we change sound. Dithering for 16-bit audio and more intelligent gain control is possible, as we have full-resolution, unclipped sound at the mixing phase. We support high resolution source sounds; both Vorbis and MAD supply more than 16 bits. Several filters, such as resampling, are easier to implement as floats; these no longer need to convert back and forth. Negatives: - More memory use. The main case of this is in RageSoundReader_Preload, which will be fixed: we can preload in 16-bit without losing most of the above. - Some extra overhead for accessing more memory.	2007-01-27 07:14:58 +00:00
Glenn Maynard	fd4b5f93bb	RageSoundReader::Read(char *) -> int16_t *. This was originally ... char * based on the idea of supporting more than one sample type. I don't plan to do that (though I may change the sample type to float or int32).	2007-01-20 01:10:24 +00:00
Glenn Maynard	7b304ca7e6	RageSoundReader_PostBuffering: general filter for post-buffering ... effects too simple to warrant their own filter	2007-01-19 09:13:33 +00:00