---
libavresample/x86/dither.asm | 33 +++++++++++++++++++++++++++++++++
libavresample/x86/dither_init.c | 10 ++++++++++
2 files changed, 43 insertions(+), 0 deletions(-)
diff --git a/libavresample/x86/dither.asm b/libavresample/x86/dither.asm
index f914255..50e8446 100644
--- a/libavresample/x86/dither.asm
+++ b/libavresample/x86/dither.asm
@@ -102,3 +102,36 @@ cglobal quantize_float, 4,4,3, dst, src, dither, len
add lenq, mmsize
jl .loop
REP_RET
+
+;------------------------------------------------------------------------------
+; void ff_dither_int_to_float(float *dst, int *src0, int len)
+;------------------------------------------------------------------------------
+
+%macro DITHER_INT_TO_FLOAT 0
+cglobal dither_int_to_float, 3,4,5, dst, src0, len, src1
+ lea lenq, [4*lend]
+ lea src1q, [src0q+2*lenq]
+ add src0q, lenq
+ add dstq, lenq
+ neg lenq
+ mova m0, [pf_dither_scale]
+.loop:
+ cvtdq2ps m1, [src0q+lenq]
+ cvtdq2ps m2, [src0q+lenq+mmsize]
+ cvtdq2ps m3, [src1q+lenq]
+ cvtdq2ps m4, [src1q+lenq+mmsize]
+ addps m1, m1, m3
+ addps m2, m2, m4
+ mulps m1, m1, m0
+ mulps m2, m2, m0
+ mova [dstq+lenq], m1
+ mova [dstq+lenq+mmsize], m2
+ add lenq, 2*mmsize
+ jl .loop
+ REP_RET
+%endmacro
+
+INIT_XMM sse2
+DITHER_INT_TO_FLOAT
+INIT_YMM avx
+DITHER_INT_TO_FLOAT
diff --git a/libavresample/x86/dither_init.c b/libavresample/x86/dither_init.c
index 998e21c..6c77c1e 100644
--- a/libavresample/x86/dither_init.c
+++ b/libavresample/x86/dither_init.c
@@ -36,6 +36,9 @@ extern void ff_quantize_int_triangular_fma4(int16_t *dst,
const float *src,
extern void ff_quantize_float_sse2(int16_t *dst, const float *src, void
*dither,
int len);
+extern void ff_dither_int_to_float_sse2(float *dst, int *src0, int len);
+extern void ff_dither_int_to_float_avx(float *dst, int *src0, int len);
+
av_cold void ff_dither_init_x86(DitherDSPContext *ddsp,
enum AVResampleDitherMethod method)
{
@@ -72,6 +75,13 @@ av_cold void ff_dither_init_x86(DitherDSPContext *ddsp,
ddsp->ptr_align = 16;
ddsp->samples_align = 8;
}
+ case AV_RESAMPLE_DITHER_TRIANGULAR_NS:
+ if (EXTERNAL_SSE2(mm_flags)) {
+ ddsp->dither_int_to_float = ff_dither_int_to_float_sse2;
+ }
+ if (EXTERNAL_AVX(mm_flags)) {
+ ddsp->dither_int_to_float = ff_dither_int_to_float_avx;
+ }
break;
}
}
--
1.7.1
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