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Diffstat (limited to 'media/libstagefright/codecs/amrwbenc/src/asm/ARMV7/residu_asm_neon.s')
| -rw-r--r-- | media/libstagefright/codecs/amrwbenc/src/asm/ARMV7/residu_asm_neon.s | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/amrwbenc/src/asm/ARMV7/residu_asm_neon.s b/media/libstagefright/codecs/amrwbenc/src/asm/ARMV7/residu_asm_neon.s new file mode 100644 index 0000000..394fa83 --- /dev/null +++ b/media/libstagefright/codecs/amrwbenc/src/asm/ARMV7/residu_asm_neon.s @@ -0,0 +1,127 @@ +@/* +@ ** Copyright 2003-2010, VisualOn, Inc. +@ ** +@ ** Licensed under the Apache License, Version 2.0 (the "License"); +@ ** you may not use this file except in compliance with the License. +@ ** You may obtain a copy of the License at +@ ** +@ ** http://www.apache.org/licenses/LICENSE-2.0 +@ ** +@ ** Unless required by applicable law or agreed to in writing, software +@ ** distributed under the License is distributed on an "AS IS" BASIS, +@ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@ ** See the License for the specific language governing permissions and +@ ** limitations under the License. +@ */ +@ +@void Residu ( +@ Word16 a[], /* (i) : prediction coefficients */ +@ Word16 x[], /* (i) : speech signal */ +@ Word16 y[], /* (o) : residual signal */ +@ Word16 lg /* (i) : size of filtering */ +@) +@a[] RN r0 +@x[] RN r1 +@y[] RN r2 +@lg RN r3 + + .section .text + .global Residu_opt + +Residu_opt: + + STMFD r13!, {r4 - r12, r14} + SUB r7, r3, #4 @i = lg - 4 + + VLD1.S16 {D0, D1, D2, D3}, [r0]! @get all a[] + VLD1.S16 {D4}, [r0]! + VMOV.S32 Q8, #0x8000 + +LOOP1: + ADD r9, r1, r7, LSL #1 @copy the address + ADD r10, r2, r7, LSL #1 + MOV r8, r9 + VLD1.S16 D5, [r8]! @get x[i], x[i+1], x[i+2], x[i+3] + VQDMULL.S16 Q10, D5, D0[0] @finish the first L_mult + + SUB r8, r9, #2 @get the x[i-1] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D0[1] + + SUB r8, r9, #4 @load the x[i-2] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D0[2] + + SUB r8, r9, #6 @load the x[i-3] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D0[3] + + SUB r8, r9, #8 @load the x[i-4] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D1[0] + + SUB r8, r9, #10 @load the x[i-5] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D1[1] + + SUB r8, r9, #12 @load the x[i-6] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D1[2] + + SUB r8, r9, #14 @load the x[i-7] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D1[3] + + SUB r8, r9, #16 @load the x[i-8] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D2[0] + + SUB r8, r9, #18 @load the x[i-9] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D2[1] + + SUB r8, r9, #20 @load the x[i-10] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D2[2] + + SUB r8, r9, #22 @load the x[i-11] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D2[3] + + SUB r8, r9, #24 @load the x[i-12] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D3[0] + + SUB r8, r9, #26 @load the x[i-13] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D3[1] + + SUB r8, r9, #28 @load the x[i-14] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D3[2] + + SUB r8, r9, #30 @load the x[i-15] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D3[3] + + SUB r8, r9, #32 @load the x[i-16] address + VLD1.S16 D5, [r8]! + VQDMLAL.S16 Q10, D5, D4[0] + + SUB r7, r7, #4 @i-=4 + VQSHL.S32 Q10, Q10, #4 + VQADD.S32 Q10, Q10, Q8 + VSHRN.S32 D5, Q10, #16 + VST1.S16 D5, [r10]! + CMP r7, #0 + + BGE LOOP1 + +Residu_asm_end: + + LDMFD r13!, {r4 - r12, r15} + + @ENDFUNC + .END + + |