Commit dd927e2e authored by Måns Rullgård's avatar Måns Rullgård

ARM: NEON optimised vector_fmul

Originally committed as revision 16867 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 89150098
......@@ -146,6 +146,8 @@ void ff_h264_idct_add8_neon(uint8_t **dest, const int *block_offset,
DCTELEM *block, int stride,
const uint8_t nnzc[6*8]);
void ff_vector_fmul_neon(float *dst, const float *src, int len);
void ff_float_to_int16_neon(int16_t *, const float *, long);
void ff_float_to_int16_interleave_neon(int16_t *, const float **, long, int);
......@@ -242,6 +244,8 @@ void ff_dsputil_init_neon(DSPContext *c, AVCodecContext *avctx)
c->h264_idct_add16intra = ff_h264_idct_add16intra_neon;
c->h264_idct_add8 = ff_h264_idct_add8_neon;
c->vector_fmul = ff_vector_fmul_neon;
if (!(avctx->flags & CODEC_FLAG_BITEXACT)) {
c->float_to_int16 = ff_float_to_int16_neon;
c->float_to_int16_interleave = ff_float_to_int16_interleave_neon;
......
......@@ -609,3 +609,43 @@ function ff_float_to_int16_interleave_neon, export=1
vcvt.s32.f32 q1, q1, #16
b 6b
.endfunc
function ff_vector_fmul_neon, export=1
mov r3, r0
subs r2, r2, #8
vld1.64 {d0-d3}, [r0,:128]!
vld1.64 {d4-d7}, [r1,:128]!
vmul.f32 q8, q0, q2
vmul.f32 q9, q1, q3
beq 3f
bics ip, r2, #15
beq 2f
1: subs ip, ip, #16
vld1.64 {d0-d1}, [r0,:128]!
vld1.64 {d4-d5}, [r1,:128]!
vmul.f32 q10, q0, q2
vld1.64 {d2-d3}, [r0,:128]!
vld1.64 {d6-d7}, [r1,:128]!
vmul.f32 q11, q1, q3
vst1.64 {d16-d19},[r3,:128]!
vld1.64 {d0-d1}, [r0,:128]!
vld1.64 {d4-d5}, [r1,:128]!
vmul.f32 q8, q0, q2
vld1.64 {d2-d3}, [r0,:128]!
vld1.64 {d6-d7}, [r1,:128]!
vmul.f32 q9, q1, q3
vst1.64 {d20-d23},[r3,:128]!
bne 1b
ands r2, r2, #15
beq 3f
2: vld1.64 {d0-d1}, [r0,:128]!
vld1.64 {d4-d5}, [r1,:128]!
vst1.64 {d16-d17},[r3,:128]!
vmul.f32 q8, q0, q2
vld1.64 {d2-d3}, [r0,:128]!
vld1.64 {d6-d7}, [r1,:128]!
vst1.64 {d18-d19},[r3,:128]!
vmul.f32 q9, q1, q3
3: vst1.64 {d16-d19},[r3,:128]!
bx lr
.endfunc
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