diff options
Diffstat (limited to 'src/pulsecore/remap_mmx.c')
| -rw-r--r-- | src/pulsecore/remap_mmx.c | 65 |
1 files changed, 36 insertions, 29 deletions
diff --git a/src/pulsecore/remap_mmx.c b/src/pulsecore/remap_mmx.c index 00252dac..79e4f1fc 100644 --- a/src/pulsecore/remap_mmx.c +++ b/src/pulsecore/remap_mmx.c @@ -51,7 +51,7 @@ " punpckl"#s" %%mm4, %%mm4 \n\t" \ " punpckh"#s" %%mm5, %%mm5 \n\t" \ " punpckl"#s" %%mm6, %%mm6 \n\t" \ - " punpckh"#s" %%mm7, %%mm7 \n\t" \ + " punpckh"#s" %%mm7, %%mm7 \n\t" #define STORE_SAMPLES \ " movq %%mm0, (%0) \n\t" \ @@ -65,46 +65,53 @@ " add $32, %1 \n\t" \ " add $64, %0 \n\t" -#define HANDLE_SINGLE(s) \ +#define HANDLE_SINGLE_dq() \ " movd (%1), %%mm0 \n\t" \ - " movq %%mm0, %%mm1 \n\t" \ - " punpckl"#s" %%mm0, %%mm0 \n\t" \ + " punpckldq %%mm0, %%mm0 \n\t" \ " movq %%mm0, (%0) \n\t" \ " 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" \ +#define HANDLE_SINGLE_wd() \ + " movw (%1), %w3 \n\t" \ + " movd %3, %%mm0 \n\t" \ + " punpcklwd %%mm0, %%mm0 \n\t" \ + " movd %%mm0, (%0) \n\t" \ + " add $2, %1 \n\t" \ + " add $4, %0 \n\t" + +#define MONO_TO_STEREO(s,shift,mask) \ + " mov %4, %2 \n\t" \ + " sar $"#shift", %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 %4, %2 \n\t" \ + " and $"#mask", %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" #if defined (__i386__) || defined (__amd64__) static void remap_mono_to_stereo_mmx (pa_remap_t *m, void *dst, const void *src, unsigned n) { - pa_reg_x86 temp; + pa_reg_x86 temp, temp2; switch (*m->format) { case PA_SAMPLE_FLOAT32NE: { __asm__ __volatile__ ( - MONO_TO_STEREO(dq) /* do doubles to quads */ - : "+r" (dst), "+r" (src), "=&r" (temp) + MONO_TO_STEREO(dq,3,7) /* do doubles to quads */ + : "+r" (dst), "+r" (src), "=&r" (temp), "=&r" (temp2) : "r" ((pa_reg_x86)n) : "cc" ); @@ -113,8 +120,8 @@ static void remap_mono_to_stereo_mmx (pa_remap_t *m, void *dst, const void *src, case PA_SAMPLE_S16NE: { __asm__ __volatile__ ( - MONO_TO_STEREO(wd) /* do words to doubles */ - : "+r" (dst), "+r" (src), "=&r" (temp) + MONO_TO_STEREO(wd,4,15) /* do words to doubles */ + : "+r" (dst), "+r" (src), "=&r" (temp), "=&r" (temp2) : "r" ((pa_reg_x86)n) : "cc" ); |