diff options
Diffstat (limited to 'media/libstagefright/codecs/mp3dec/src/asm/pvmp3_polyphase_filter_window_wm.asm')
| -rw-r--r-- | media/libstagefright/codecs/mp3dec/src/asm/pvmp3_polyphase_filter_window_wm.asm | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/mp3dec/src/asm/pvmp3_polyphase_filter_window_wm.asm b/media/libstagefright/codecs/mp3dec/src/asm/pvmp3_polyphase_filter_window_wm.asm new file mode 100644 index 0000000..f957267 --- /dev/null +++ b/media/libstagefright/codecs/mp3dec/src/asm/pvmp3_polyphase_filter_window_wm.asm @@ -0,0 +1,231 @@ +; ------------------------------------------------------------------ +; Copyright (C) 1998-2009 PacketVideo +; +; 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. +; ------------------------------------------------------------------- + +; +; +; Filename: pvmp3_polyphase_filter_window.s +; +;------------------------------------------------------------------------------ +; REVISION HISTORY +; +; +; Who: Date: MM/DD/YYYY +; Description: +; +;------------------------------------------------------------------------------ + + CODE32 + + AREA |.drectve|, DRECTVE + + EXPORT |pvmp3_polyphase_filter_window| + IMPORT |pqmfSynthWin| + + AREA |.pdata|, PDATA + + AREA |.text|, CODE, ARM + +|pvmp3_polyphase_filter_window| PROC + stmfd sp!,{r0-r2,r4-r11,lr} + + sub sp,sp,#4 + ldr r2,[sp,#0xc] + ldr r1,PolyPh_filter_coeff + + sub r2,r2,#1 + mov r10,#1 + str r2,[sp] + +; Accumulators r9, r11::> Initialization + +Loop_j + mov r9, #0x20 + mov r11, #0x20 + mov r4, #0x10 +Loop_i + add r2,r4,r10 + add r3,r0,r2,lsl #2 + sub r2,r4,r10 + ldr r5,[r3] + ldr lr,[r1] + add r12,r0,r2,lsl #2 + ldr r6,[r12,#0x780] + smlal r2,r9,lr,r5 + smlal r2,r11,lr,r6 + ldr r2,[r1,#4] + ldr r7,[r12,#0x80] + smlal r5,r11,r2,r5 + smull r6,r5,r2,r6 + sub r9,r9,r5 + ldr r5,[r1,#8] + ldr r8,[r3,#0x700] + add r4,r4,#0x200 + smlal r6,r9,r5,r7 + smull r6,r2,r5,r8 + ldr r5,[r1,#0xc] + sub r11,r11,r2 + smlal r8,r9,r5,r8 + smlal r7,r11,r5,r7 + ldr r5,[r3,#0x100] + ldr r2,[r1,#0x10] + ldr r6,[r12,#0x680] + smlal lr,r9,r2,r5 + smlal lr,r11,r2,r6 + ldr r2,[r1,#0x14] + ldr r7,[r12,#0x180] + smlal r5,r11,r2,r5 + smull r6,r5,r2,r6 + ldr r6,[r1,#0x18] + ldr r8,[r3,#0x600] + sub r9,r9,r5 + smlal r5,r9,r6,r7 + smull r2,r5,r6,r8 + ldr r6,[r1,#0x1c] + sub r11,r11,r5 + smlal r8,r9,r6,r8 + ldr r2,[r1,#0x20] + ldr r5,[r3,#0x200] + smlal r7,r11,r6,r7 + ldr r6,[r12,#0x580] + smlal lr,r9,r2,r5 + smlal lr,r11,r2,r6 + ldr r2,[r1,#0x24] + ldr r7,[r12,#0x280] + smlal r5,r11,r2,r5 + smull r6,r5,r2,r6 + ldr r6,[r1,#0x28] + ldr r8,[r3,#0x500] + sub r9,r9,r5 + smlal r5,r9,r6,r7 + smull r2,r5,r6,r8 + ldr r6,[r1,#0x2c] + sub r11,r11,r5 + + smlal r8,r9,r6,r8 + smlal r7,r11,r6,r7 + ldr r5,[r3,#0x300] + ldr r8,[r1,#0x30] + ldr r6,[r12,#0x480] + smlal r7,r9,r8,r5 + smlal r7,r11,r8,r6 + ldr r8,[r1,#0x34] + ldr r12,[r12,#0x380] + smlal r5,r11,r8,r5 + smull r6,r5,r8,r6 + ldr r6,[r1,#0x38] + + + ldr r3,[r3,#0x400] + sub r9,r9,r5 + smlal r7,r9,r6,r12 + smull r8,r7,r6,r3 + cmp r4,#0x210 + sub r11,r11,r7 + + ldr r2,[r1,#0x3c] + add r1,r1,#0x40 + smlal r3,r9,r2,r3 + smlal r12,r11,r2,r12 + + blt Loop_i + + mov r3,r9, asr #6 + mov r4,r3, asr #15 + teq r4,r3, asr #31 + ldr r12,LOW_16BITS + ldr r2,[sp] + eorne r3,r12,r3,asr #31 + ldr r4,[sp,#8] + mov r2,r10,lsl r2 + add r4,r4,r2,lsl #1 + strh r3,[r4] + + mov r3,r11,asr #6 + mov r4,r3,asr #15 + teq r4,r3,asr #31 + eorne r3,r12,r3,asr #31 + ldr r12,[sp,#0xc] + ldr r11,[sp,#8] + rsb r2,r2,r12,lsl #5 + add r2,r11,r2,lsl #1 + strh r3,[r2] + + add r10,r10,#1 + cmp r10,#0x10 + blt Loop_j + +; Accumulators r4, r5 Initialization + + mov r4,#0x20 + mov r5,#0x20 + mov r3,#0x10 +PolyPh_filter_loop2 + add r2,r0,r3,lsl #2 + ldr r12,[r2] + ldr r8,[r1] + ldr r6,[r2,#0x80] + smlal r12,r4,r8,r12 + ldr r12,[r1,#4] + ldr r7,[r2,#0x40] + smlal r6,r4,r12,r6 + + ldr r12,[r1,#8] + ldr r6,[r2,#0x180] + smlal r7,r5,r12,r7 + ldr r12,[r2,#0x100] + ldr r7,[r1,#0xc] + ldr r2,[r2,#0x140] + smlal r12,r4,r7,r12 + ldr r12,[r1,#0x10] + add r3,r3,#0x80 + smlal r6,r4,r12,r6 + ldr r6,[r1,#0x14] + cmp r3,#0x210 + smlal r2,r5,r6,r2 + add r1,r1,#0x18 + + blt PolyPh_filter_loop2 + mov r0,r4,asr #6 + mov r2,r0,asr #15 + teq r2,r0,asr #31 + ldrne r12,LOW_16BITS + ldr r1,[sp,#8] + eorne r0,r12,r0,asr #31 + strh r0,[r1,#0] + mov r0,r5,asr #6 + mov r2,r0,asr #15 + teq r2,r0,asr #31 + ldrne r12,LOW_16BITS + ldr r2,[sp] + mov r1,#0x10 + eorne r0,r12,r0,asr #31 + ldr r12,[sp,#8] + mov r1,r1,lsl r2 + add r1,r12,r1,lsl #1 + strh r0,[r1] + add sp,sp,#0x10 + ldmfd sp!,{r4-r11,pc} + + +PolyPh_filter_coeff + DCD pqmfSynthWin +LOW_16BITS + DCD 0x00007fff + + ENDP ; |pvmp3_polyphase_filter_window| + END + |