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| author | Nils Wallménius <nils@rockbox.org> | 2012-10-06 23:41:15 +0200 |
|---|---|---|
| committer | Nils Wallménius <nils@rockbox.org> | 2012-10-06 23:43:05 +0200 |
| commit | 3ac0fc7c907695d72f58c41907cef913cf81561f (patch) | |
| tree | c11c87f87f2645271bad607600f9d0e46bd1ca64 | |
| parent | 2119f75af3e94a959451cd0dccde9ce38b19bcf0 (diff) | |
| download | rockbox-3ac0fc7c907695d72f58c41907cef913cf81561f.tar.gz rockbox-3ac0fc7c907695d72f58c41907cef913cf81561f.zip | |
opus: cf inline asm for MULT32_32_Q31
speeds up decoding of a 64kbps test file by 2MHz on h300
Change-Id: I437d05278fe1c495715cf0e3477f9960d1df9d3a
| -rw-r--r-- | lib/rbcodec/codecs/libopus/celt/fixed_generic.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/lib/rbcodec/codecs/libopus/celt/fixed_generic.h b/lib/rbcodec/codecs/libopus/celt/fixed_generic.h index 53f513b67b..28a1598d3e 100644 --- a/lib/rbcodec/codecs/libopus/celt/fixed_generic.h +++ b/lib/rbcodec/codecs/libopus/celt/fixed_generic.h | |||
| @@ -71,7 +71,19 @@ static inline int32_t MULT16_32_Q15(int32_t a, int32_t b) | |||
| 71 | #define MULT16_32_Q15(a,b) ADD32(SHL(MULT16_16((a),SHR((b),16)),1), SHR(MULT16_16SU((a),((b)&0x0000ffff)),15)) | 71 | #define MULT16_32_Q15(a,b) ADD32(SHL(MULT16_16((a),SHR((b),16)),1), SHR(MULT16_16SU((a),((b)&0x0000ffff)),15)) |
| 72 | #endif | 72 | #endif |
| 73 | 73 | ||
| 74 | #if defined(CPU_ARM) | 74 | #if defined(CPU_COLDFIRE) |
| 75 | static inline int32_t MULT32_32_Q31(int32_t a, int32_t b) | ||
| 76 | { | ||
| 77 | int32_t r; | ||
| 78 | asm volatile ("mac.l %[a], %[b], %%acc0;" | ||
| 79 | "movclr.l %%acc0, %[r];" | ||
| 80 | : [r] "=r" (r) | ||
| 81 | : [a] "r" (a), [b] "r" (b) | ||
| 82 | : "cc"); | ||
| 83 | return r; | ||
| 84 | } | ||
| 85 | |||
| 86 | #elif defined(CPU_ARM) | ||
| 75 | static inline int32_t MULT32_32_Q31(int32_t a, int32_t b) | 87 | static inline int32_t MULT32_32_Q31(int32_t a, int32_t b) |
| 76 | { | 88 | { |
| 77 | int32_t lo, hi; | 89 | int32_t lo, hi; |