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ARM: NEON optimised vector_fmul_add

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Originally committed as revision 20063 to svn://svn.ffmpeg.org/ffmpeg/trunk
release/0.6
Måns Rullgård 16 years ago
parent 35de5d2412
commit ec71a8e00b
2 changed files with 30 additions and 0 deletions
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  1. 3
      libavcodec/arm/dsputil_neon.c
  2. 27
      libavcodec/arm/dsputil_neon_s.S

3
libavcodec/arm/dsputil_neon.c
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@ -173,6 +173,8 @@ void ff_int32_to_float_fmul_scalar_neon(float *dst, const int *src,
float mul, int len);
void ff_vector_fmul_reverse_neon(float *dst, const float *src0,
const float *src1, int len);
void ff_vector_fmul_add_neon(float *dst, const float *src0, const float *src1,
const float *src2, int len);
void ff_vector_clipf_neon(float *dst, const float *src, float min, float max,
int len);
@ -292,6 +294,7 @@ void ff_dsputil_init_neon(DSPContext *c, AVCodecContext *avctx)
c->scalarproduct_float = ff_scalarproduct_float_neon;
c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_neon;
c->vector_fmul_reverse = ff_vector_fmul_reverse_neon;
c->vector_fmul_add = ff_vector_fmul_add_neon;
c->vector_fmul_sv_scalar[0] = ff_vector_fmul_sv_scalar_2_neon;
c->vector_fmul_sv_scalar[1] = ff_vector_fmul_sv_scalar_4_neon;

27
libavcodec/arm/dsputil_neon_s.S
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@ -1076,6 +1076,33 @@ function ff_vector_fmul_reverse_neon, export=1
bx lr
.endfunc
function ff_vector_fmul_add_neon, export=1
ldr r12, [sp]
vld1.32 {q0-q1}, [r1,:128]!
vld1.32 {q8-q9}, [r2,:128]!
vld1.32 {q2-q3}, [r3,:128]!
vmul.f32 q10, q0, q8
vmul.f32 q11, q1, q9
1: vadd.f32 q12, q2, q10
vadd.f32 q13, q3, q11
pld [r1, #16]
pld [r2, #16]
pld [r3, #16]
subs r12, r12, #8
beq 2f
vld1.32 {q0}, [r1,:128]!
vld1.32 {q8}, [r2,:128]!
vmul.f32 q10, q0, q8
vld1.32 {q1}, [r1,:128]!
vld1.32 {q9}, [r2,:128]!
vmul.f32 q11, q1, q9
vld1.32 {q2-q3}, [r3,:128]!
vst1.32 {q12-q13},[r0,:128]!
b 1b
2: vst1.32 {q12-q13},[r0,:128]!
bx lr
.endfunc
function ff_vector_clipf_neon, export=1
VFP vdup.32 q1, d0[1]
VFP vdup.32 q0, d0[0]

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