* ARM NEON optimised MDCT
* Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "asm.S"
+#include "libavutil/arm/asm.S"
- .fpu neon
- .text
+#define ff_fft_calc_neon X(ff_fft_calc_neon)
function ff_imdct_half_neon, export=1
push {r4-r8,lr}
mov r12, #1
- ldr lr, [r0, #4] @ nbits
- ldr r4, [r0, #8] @ tcos
- ldr r5, [r0, #12] @ tsin
- ldr r3, [r0, #24] @ revtab
+ ldr lr, [r0, #20] @ mdct_bits
+ ldr r4, [r0, #24] @ tcos
+ ldr r3, [r0, #8] @ revtab
lsl r12, r12, lr @ n = 1 << nbits
lsr lr, r12, #2 @ n4 = n >> 2
add r7, r2, r12, lsl #1
- mov r12, #-16
+ mov r12, #-16
sub r7, r7, #16
- vld1.32 {d16-d17},[r7,:128],r12 @ d16=x,n1 d17=x,n0
- vld1.32 {d0-d1}, [r2,:128]! @ d0 =m0,x d1 =m1,x
- vld1.32 {d2}, [r4,:64]! @ d2=c0,c1
- vld1.32 {d3}, [r5,:64]! @ d3=s0,s1
- vuzp.32 d17, d16
- vuzp.32 d0, d1
- vmul.f32 d6, d16, d2
+ vld2.32 {d16-d17},[r7,:128],r12 @ d16=x,n1 d17=x,n0
+ vld2.32 {d0-d1}, [r2,:128]! @ d0 =m0,x d1 =m1,x
+ vrev64.32 d17, d17
+ vld2.32 {d2,d3}, [r4,:128]! @ d2=c0,c1 d3=s0,s2
+ vmul.f32 d6, d17, d2
vmul.f32 d7, d0, d2
1:
subs lr, lr, #2
ldr r6, [r3], #4
vmul.f32 d4, d0, d3
- vmul.f32 d5, d16, d3
+ vmul.f32 d5, d17, d3
vsub.f32 d4, d6, d4
vadd.f32 d5, d5, d7
- uxtah r8, r1, r6, ror #16
- uxtah r6, r1, r6
+ uxth r8, r6, ror #16
+ uxth r6, r6
+ add r8, r1, r8, lsl #3
+ add r6, r1, r6, lsl #3
beq 1f
- vld1.32 {d16-d17},[r7,:128],r12
- vld1.32 {d0-d1}, [r2,:128]!
- vuzp.32 d17, d16
- vld1.32 {d2}, [r4,:64]!
- vuzp.32 d0, d1
- vmul.f32 d6, d16, d2
- vld1.32 {d3}, [r5,:64]!
+ vld2.32 {d16-d17},[r7,:128],r12
+ vld2.32 {d0-d1}, [r2,:128]!
+ vrev64.32 d17, d17
+ vld2.32 {d2,d3}, [r4,:128]! @ d2=c0,c1 d3=s0,s2
+ vmul.f32 d6, d17, d2
vmul.f32 d7, d0, d2
vst2.32 {d4[0],d5[0]}, [r6,:64]
vst2.32 {d4[1],d5[1]}, [r8,:64]
mov r4, r0
mov r6, r1
- add r0, r0, #16
bl ff_fft_calc_neon
mov r12, #1
- ldr lr, [r4, #4] @ nbits
- ldr r5, [r4, #12] @ tsin
- ldr r4, [r4, #8] @ tcos
+ ldr lr, [r4, #20] @ mdct_bits
+ ldr r4, [r4, #24] @ tcos
lsl r12, r12, lr @ n = 1 << nbits
lsr lr, r12, #3 @ n8 = n >> 3
- add r4, r4, lr, lsl #2
- add r5, r5, lr, lsl #2
+ add r4, r4, lr, lsl #3
add r6, r6, lr, lsl #3
- sub r1, r4, #8
- sub r2, r5, #8
+ sub r1, r4, #16
sub r3, r6, #16
mov r7, #-16
- mov r12, #-8
mov r8, r6
mov r0, r3
- vld1.32 {d0-d1}, [r3,:128], r7 @ d0 =i1,r1 d1 =i0,r0
- vld1.32 {d20-d21},[r6,:128]! @ d20=i2,r2 d21=i3,r3
- vld1.32 {d18}, [r2,:64], r12 @ d18=s1,s0
- vuzp.32 d20, d21
- vuzp.32 d0, d1
+ vld2.32 {d0-d1}, [r3,:128], r7 @ d0 =i1,r1 d1 =i0,r0
+ vld2.32 {d20-d21},[r6,:128]! @ d20=i2,r2 d21=i3,r3
+ vld2.32 {d16,d18},[r1,:128], r7 @ d16=c1,c0 d18=s1,s0
1:
subs lr, lr, #2
vmul.f32 d7, d0, d18
- vld1.32 {d19}, [r5,:64]! @ d19=s2,s3
+ vld2.32 {d17,d19},[r4,:128]! @ d17=c2,c3 d19=s2,s3
vmul.f32 d4, d1, d18
- vld1.32 {d16}, [r1,:64], r12 @ d16=c1,c0
vmul.f32 d5, d21, d19
- vld1.32 {d17}, [r4,:64]! @ d17=c2,c3
vmul.f32 d6, d20, d19
vmul.f32 d22, d1, d16
vmul.f32 d23, d21, d17
vsub.f32 d4, d4, d24
vsub.f32 d5, d5, d25
beq 1f
- vld1.32 {d0-d1}, [r3,:128], r7
- vld1.32 {d20-d21},[r6,:128]!
- vld1.32 {d18}, [r2,:64], r12
- vuzp.32 d20, d21
- vuzp.32 d0, d1
+ vld2.32 {d0-d1}, [r3,:128], r7
+ vld2.32 {d20-d21},[r6,:128]!
+ vld2.32 {d16,d18},[r1,:128], r7 @ d16=c1,c0 d18=s1,s0
vrev64.32 q3, q3
- vtrn.32 d4, d6
- vtrn.32 d5, d7
- vswp d5, d6
- vst1.32 {d4-d5}, [r0,:128], r7
- vst1.32 {d6-d7}, [r8,:128]!
+ vst2.32 {d4,d6}, [r0,:128], r7
+ vst2.32 {d5,d7}, [r8,:128]!
b 1b
1:
vrev64.32 q3, q3
- vtrn.32 d4, d6
- vtrn.32 d5, d7
- vswp d5, d6
- vst1.32 {d4-d5}, [r0,:128]
- vst1.32 {d6-d7}, [r8,:128]
+ vst2.32 {d4,d6}, [r0,:128]
+ vst2.32 {d5,d7}, [r8,:128]
pop {r4-r8,pc}
-.endfunc
+endfunc
function ff_imdct_calc_neon, export=1
push {r4-r6,lr}
- ldr r3, [r0, #4]
+ ldr r3, [r0, #20]
mov r4, #1
mov r5, r1
lsl r4, r4, r3
add r1, r1, r4
- bl ff_imdct_half_neon
+ bl X(ff_imdct_half_neon)
add r0, r5, r4, lsl #2
add r1, r5, r4, lsl #1
bgt 1b
pop {r4-r6,pc}
-.endfunc
+endfunc
+
+function ff_mdct_calc_neon, export=1
+ push {r4-r10,lr}
+
+ mov r12, #1
+ ldr lr, [r0, #20] @ mdct_bits
+ ldr r4, [r0, #24] @ tcos
+ ldr r3, [r0, #8] @ revtab
+ lsl lr, r12, lr @ n = 1 << nbits
+ add r7, r2, lr @ in4u
+ sub r9, r7, #16 @ in4d
+ add r2, r7, lr, lsl #1 @ in3u
+ add r8, r9, lr, lsl #1 @ in3d
+ add r5, r4, lr, lsl #1
+ sub r5, r5, #16
+ sub r3, r3, #4
+ mov r12, #-16
+
+ vld2.32 {d16,d18},[r9,:128],r12 @ in0u0,in0u1 in4d1,in4d0
+ vld2.32 {d17,d19},[r8,:128],r12 @ in2u0,in2u1 in3d1,in3d0
+ vld2.32 {d0, d2}, [r7,:128]! @ in4u0,in4u1 in2d1,in2d0
+ vrev64.32 q9, q9 @ in4d0,in4d1 in3d0,in3d1
+ vld2.32 {d1, d3}, [r2,:128]! @ in3u0,in3u1 in1d1,in1d0
+ vsub.f32 d0, d18, d0 @ in4d-in4u I
+ vld2.32 {d20,d21},[r4,:128]! @ c0,c1 s0,s1
+ vrev64.32 q1, q1 @ in2d0,in2d1 in1d0,in1d1
+ vld2.32 {d30,d31},[r5,:128],r12 @ c2,c3 s2,s3
+ vadd.f32 d1, d1, d19 @ in3u+in3d -R
+ vsub.f32 d16, d16, d2 @ in0u-in2d R
+ vadd.f32 d17, d17, d3 @ in2u+in1d -I
+1:
+ vmul.f32 d7, d0, d21 @ I*s
+A ldr r10, [r3, lr, lsr #1]
+T lsr r10, lr, #1
+T ldr r10, [r3, r10]
+ vmul.f32 d6, d1, d20 @ -R*c
+ ldr r6, [r3, #4]!
+ vmul.f32 d4, d1, d21 @ -R*s
+ vmul.f32 d5, d0, d20 @ I*c
+ vmul.f32 d24, d16, d30 @ R*c
+ vmul.f32 d25, d17, d31 @ -I*s
+ vmul.f32 d22, d16, d31 @ R*s
+ vmul.f32 d23, d17, d30 @ I*c
+ subs lr, lr, #16
+ vsub.f32 d6, d6, d7 @ -R*c-I*s
+ vadd.f32 d7, d4, d5 @ -R*s+I*c
+ vsub.f32 d24, d25, d24 @ I*s-R*c
+ vadd.f32 d25, d22, d23 @ R*s-I*c
+ beq 1f
+ mov r12, #-16
+ vld2.32 {d16,d18},[r9,:128],r12 @ in0u0,in0u1 in4d1,in4d0
+ vld2.32 {d17,d19},[r8,:128],r12 @ in2u0,in2u1 in3d1,in3d0
+ vneg.f32 d7, d7 @ R*s-I*c
+ vld2.32 {d0, d2}, [r7,:128]! @ in4u0,in4u1 in2d1,in2d0
+ vrev64.32 q9, q9 @ in4d0,in4d1 in3d0,in3d1
+ vld2.32 {d1, d3}, [r2,:128]! @ in3u0,in3u1 in1d1,in1d0
+ vsub.f32 d0, d18, d0 @ in4d-in4u I
+ vld2.32 {d20,d21},[r4,:128]! @ c0,c1 s0,s1
+ vrev64.32 q1, q1 @ in2d0,in2d1 in1d0,in1d1
+ vld2.32 {d30,d31},[r5,:128],r12 @ c2,c3 s2,s3
+ vadd.f32 d1, d1, d19 @ in3u+in3d -R
+ vsub.f32 d16, d16, d2 @ in0u-in2d R
+ vadd.f32 d17, d17, d3 @ in2u+in1d -I
+ uxth r12, r6, ror #16
+ uxth r6, r6
+ add r12, r1, r12, lsl #3
+ add r6, r1, r6, lsl #3
+ vst2.32 {d6[0],d7[0]}, [r6,:64]
+ vst2.32 {d6[1],d7[1]}, [r12,:64]
+ uxth r6, r10, ror #16
+ uxth r10, r10
+ add r6 , r1, r6, lsl #3
+ add r10, r1, r10, lsl #3
+ vst2.32 {d24[0],d25[0]},[r10,:64]
+ vst2.32 {d24[1],d25[1]},[r6,:64]
+ b 1b
+1:
+ vneg.f32 d7, d7 @ R*s-I*c
+ uxth r12, r6, ror #16
+ uxth r6, r6
+ add r12, r1, r12, lsl #3
+ add r6, r1, r6, lsl #3
+ vst2.32 {d6[0],d7[0]}, [r6,:64]
+ vst2.32 {d6[1],d7[1]}, [r12,:64]
+ uxth r6, r10, ror #16
+ uxth r10, r10
+ add r6 , r1, r6, lsl #3
+ add r10, r1, r10, lsl #3
+ vst2.32 {d24[0],d25[0]},[r10,:64]
+ vst2.32 {d24[1],d25[1]},[r6,:64]
+
+ mov r4, r0
+ mov r6, r1
+ bl ff_fft_calc_neon
+
+ mov r12, #1
+ ldr lr, [r4, #20] @ mdct_bits
+ ldr r4, [r4, #24] @ tcos
+ lsl r12, r12, lr @ n = 1 << nbits
+ lsr lr, r12, #3 @ n8 = n >> 3
+
+ add r4, r4, lr, lsl #3
+ add r6, r6, lr, lsl #3
+ sub r1, r4, #16
+ sub r3, r6, #16
+
+ mov r7, #-16
+ mov r8, r6
+ mov r0, r3
+
+ vld2.32 {d0-d1}, [r3,:128], r7 @ d0 =r1,i1 d1 =r0,i0
+ vld2.32 {d20-d21},[r6,:128]! @ d20=r2,i2 d21=r3,i3
+ vld2.32 {d16,d18},[r1,:128], r7 @ c1,c0 s1,s0
+1:
+ subs lr, lr, #2
+ vmul.f32 d7, d0, d18 @ r1*s1,r0*s0
+ vld2.32 {d17,d19},[r4,:128]! @ c2,c3 s2,s3
+ vmul.f32 d4, d1, d18 @ i1*s1,i0*s0
+ vmul.f32 d5, d21, d19 @ i2*s2,i3*s3
+ vmul.f32 d6, d20, d19 @ r2*s2,r3*s3
+ vmul.f32 d24, d0, d16 @ r1*c1,r0*c0
+ vmul.f32 d25, d20, d17 @ r2*c2,r3*c3
+ vmul.f32 d22, d21, d17 @ i2*c2,i3*c3
+ vmul.f32 d23, d1, d16 @ i1*c1,i0*c0
+ vadd.f32 d4, d4, d24 @ i1*s1+r1*c1,i0*s0+r0*c0
+ vadd.f32 d5, d5, d25 @ i2*s2+r2*c2,i3*s3+r3*c3
+ vsub.f32 d6, d22, d6 @ i2*c2-r2*s2,i3*c3-r3*s3
+ vsub.f32 d7, d23, d7 @ i1*c1-r1*s1,i0*c0-r0*s0
+ vneg.f32 q2, q2
+ beq 1f
+ vld2.32 {d0-d1}, [r3,:128], r7
+ vld2.32 {d20-d21},[r6,:128]!
+ vld2.32 {d16,d18},[r1,:128], r7 @ c1,c0 s1,s0
+ vrev64.32 q3, q3
+ vst2.32 {d4,d6}, [r0,:128], r7
+ vst2.32 {d5,d7}, [r8,:128]!
+ b 1b
+1:
+ vrev64.32 q3, q3
+ vst2.32 {d4,d6}, [r0,:128]
+ vst2.32 {d5,d7}, [r8,:128]
+
+ pop {r4-r10,pc}
+endfunc
projects / ffmpeg / blobdiff