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Add a new SPSC ring buffer.

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This improves on the old ring buffer by having a much simpler
implementation and a much simpler API that does not require the caller
to do reading and writing in a loop.

Future commits will be removing the old ring buffer.

Public issue https://github.com/mackron/miniaudio/issues/671
This commit is contained in:
David Reid
2026-01-25 14:05:30 +10:00
parent bef32b4419
commit edb64e6017
2 changed files with 303 additions and 7 deletions
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camal/miniaudio.camal
+29 -7
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@@ -1,10 +1,12 @@
miniaudio_h := <../miniaudio.h>;
miniaudio_c := <../miniaudio.c>;
dr_wav_h :: <../../dr_libs/dr_wav.h>;
dr_flac_h :: <../../dr_libs/dr_flac.h>;
dr_mp3_h :: <../../dr_libs/dr_mp3.h>;
c89atomic_h :: <../../c89atomic/c89atomic.h>;
c89atomic_c :: <../../c89atomic/c89atomic.c>;
miniaudio_h := <../miniaudio.h>;
miniaudio_c := <../miniaudio.c>;
dr_wav_h :: <../../dr_libs/dr_wav.h>;
dr_flac_h :: <../../dr_libs/dr_flac.h>;
dr_mp3_h :: <../../dr_libs/dr_mp3.h>;
c89atomic_h :: <../../c89atomic/c89atomic.h>;
c89atomic_c :: <../../c89atomic/c89atomic.c>;
c89atomic_ring_buffer_h :: <../../c89atomic/extras/c89atomic_ring_buffer.h>;
c89atomic_ring_buffer_c :: <../../c89atomic/extras/c89atomic_ring_buffer.c>;
minify :: function(src:string) string
{
@@ -276,6 +278,26 @@ convert_c89atomic_h :: function(src:string) string
miniaudio_h("/\* c89atomic.h begin \*/\R":"\R/\* c89atomic.h end \*/") = convert_c89atomic_h(@(c89atomic_h["#ifndef c89atomic_h\R":"\R#endif /\* c89atomic_h \*/"]));
// Ring Buffer
rename_c89atomic_ring_buffer_namespace :: function(src:string) string
{
return rename_c89atomic_namespace(src)
["\bma_atomic_ring_buffer"] <= "ma_ring_buffer"
["\bMA_ATOMIC"] <= "MA"
["\bMA_RING_BUFFER_API"] <= "MA_API"
["\bMA_RING_BUFFER_ASSERT"] <= "MA_ASSERT"
["\bMA_RING_BUFFER_COPY_MEMORY"] <= "MA_COPY_MEMORY"
["\bMA_RING_BUFFER_OFFSET_PTR"] <= "ma_offset_ptr"
// Alignment hack.
["void\* pBuffer; "] <= "void* pBuffer;"
;
}
miniaudio_h("/\* BEG ma_ring_buffer.h \*/\R":"\R/\* END ma_ring_buffer.h \*/") = rename_c89atomic_ring_buffer_namespace(@(c89atomic_ring_buffer_h("/\* BEG c89atomic_ring_buffer.h \*/\R":"\R/\* END c89atomic_ring_buffer.h \*/")));
miniaudio_h("/\* BEG ma_ring_buffer.c \*/\R":"\R/\* END ma_ring_buffer.c \*/") = rename_c89atomic_ring_buffer_namespace(@(c89atomic_ring_buffer_c("/\* BEG c89atomic_ring_buffer.c \*/\R":"\R/\* END c89atomic_ring_buffer.c \*/")));
// Cleanup. If we don't normalize line endings we'll fail to compile on old versions of GCC.
cleanup :: function(src:string) string
{