diff options
Diffstat (limited to 'libswresample/x86/audio_convert.asm')
| -rw-r--r-- | libswresample/x86/audio_convert.asm | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/libswresample/x86/audio_convert.asm b/libswresample/x86/audio_convert.asm index 99bfdcaafd..1c70f6ef4c 100644 --- a/libswresample/x86/audio_convert.asm +++ b/libswresample/x86/audio_convert.asm @@ -25,6 +25,7 @@ SECTION_RODATA flt2pm31: times 8 dd 4.6566129e-10 flt2p31 : times 8 dd 2147483648.0 +flt2p15 : times 8 dd 32768.0 SECTION .text @@ -163,6 +164,36 @@ float_to_int32_u_int %+ SUFFIX REP_RET %endmacro +%macro FLOAT_TO_INT16 1 +cglobal float_to_int16_%1, 3, 3, 3, dst, src, len + mov srcq, [srcq] + mov dstq, [dstq] +%ifidn %1, a + test dstq, mmsize-1 + jne float_to_int16_u_int %+ SUFFIX + test srcq, mmsize-1 + jne float_to_int16_u_int %+ SUFFIX +%else +float_to_int16_u_int %+ SUFFIX +%endif + lea srcq, [srcq + 2*lenq] + add dstq, lenq + neg lenq + mova m2, [flt2p15] +.next: + mov%1 m0, [ srcq+2*lenq] + mov%1 m1, [mmsize + srcq+2*lenq] + mulps m0, m2 + mulps m1, m2 + cvtps2dq m0, m0 + cvtps2dq m1, m1 + packssdw m0, m1 + mov%1 [ dstq+lenq], m0 + add lenq, mmsize + jl .next + REP_RET +%endmacro + INIT_MMX mmx INT16_TO_INT32 u @@ -179,3 +210,5 @@ INT16_TO_FLOAT u INT16_TO_FLOAT a FLOAT_TO_INT32 u FLOAT_TO_INT32 a +FLOAT_TO_INT16 u +FLOAT_TO_INT16 a |