diff options
| author | Wim Taymans <wim.taymans@collabora.co.uk> | 2009-08-20 20:00:50 +0200 |
|---|---|---|
| committer | Wim Taymans <wim.taymans@collabora.co.uk> | 2009-08-20 20:00:50 +0200 |
| commit | 6076cef2092391d8b46aa84f86857cffebce4583 (patch) | |
| tree | 11bc958d668d8cd3653793f3f8026cf0eecac2f9 | |
| parent | 6e5dbed51ee508759ed8b5adabc998ba8faf4774 (diff) | |
remap: make the MMX code pretier
| -rw-r--r-- | src/pulsecore/remap_mmx.c | 74 |
1 files changed, 24 insertions, 50 deletions
diff --git a/src/pulsecore/remap_mmx.c b/src/pulsecore/remap_mmx.c index 6690cfa4..bfcae6c5 100644 --- a/src/pulsecore/remap_mmx.c +++ b/src/pulsecore/remap_mmx.c @@ -73,6 +73,28 @@ " add $4, %1 \n\t" \ " add $8, %0 \n\t" +#define MONO_TO_STEREO(s) \ + " mov %3, %2 \n\t" \ + " sar $3, %2 \n\t" \ + " cmp $0, %2 \n\t" \ + " je 2f \n\t" \ + "1: \n\t" \ + LOAD_SAMPLES \ + UNPACK_SAMPLES(s) \ + STORE_SAMPLES \ + " dec %2 \n\t" \ + " jne 1b \n\t" \ + "2: \n\t" \ + " mov %3, %2 \n\t" \ + " and $7, %2 \n\t" \ + " je 4f \n\t" \ + "3: \n\t" \ + HANDLE_SINGLE(s) \ + " dec %2 \n\t" \ + " jne 3b \n\t" \ + "4: \n\t" \ + " emms \n\t" + static void remap_mono_to_stereo_mmx (pa_remap_t *m, void *dst, const void *src, unsigned n) { pa_reg_x86 temp; @@ -80,31 +102,7 @@ static void remap_mono_to_stereo_mmx (pa_remap_t *m, void *dst, const void *src, case PA_SAMPLE_FLOAT32NE: { __asm__ __volatile__ ( - " mov %3, %2 \n\t" - " sar $3, %2 \n\t" /* prepare for processing 8 samples at a time */ - " cmp $0, %2 \n\t" - " je 2f \n\t" - - "1: \n\t" /* do samples in groups of 8 */ - LOAD_SAMPLES - UNPACK_SAMPLES(dq) - STORE_SAMPLES - " dec %2 \n\t" - " jne 1b \n\t" - - "2: \n\t" - " mov %3, %2 \n\t" - " and $7, %2 \n\t" /* prepare for processing the remaining samples */ - " je 4f \n\t" - - "3: \n\t" - HANDLE_SINGLE(dq) - " dec %2 \n\t" - " jne 3b \n\t" - - "4: \n\t" - " emms \n\t" - + MONO_TO_STEREO(dq) /* do doubles to quads */ : "+r" (dst), "+r" (src), "=&r" (temp) : "r" ((pa_reg_x86)n) : "cc" @@ -114,31 +112,7 @@ static void remap_mono_to_stereo_mmx (pa_remap_t *m, void *dst, const void *src, case PA_SAMPLE_S16NE: { __asm__ __volatile__ ( - " mov %3, %2 \n\t" - " sar $3, %2 \n\t" /* prepare for processing 8 samples at a time */ - " cmp $0, %2 \n\t" - " je 2f \n\t" - - "1: \n\t" /* do samples in groups of 16 */ - LOAD_SAMPLES - UNPACK_SAMPLES(wd) - STORE_SAMPLES - " dec %2 \n\t" - " jne 1b \n\t" - - "2: \n\t" - " mov %3, %2 \n\t" - " and $7, %2 \n\t" /* prepare for processing the remaining samples */ - " je 4f \n\t" - - "3: \n\t" - HANDLE_SINGLE(wd) - " dec %2 \n\t" - " jne 3b \n\t" - - "4: \n\t" - " emms \n\t" - + MONO_TO_STEREO(wd) /* do words to doubles */ : "+r" (dst), "+r" (src), "=&r" (temp) : "r" ((pa_reg_x86)n) : "cc" |