diff options
Diffstat (limited to 'media/libstagefright/codecs/aacenc/src/asm/ARMV7/PrePostMDCT_v7.s')
| -rw-r--r-- | media/libstagefright/codecs/aacenc/src/asm/ARMV7/PrePostMDCT_v7.s | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/aacenc/src/asm/ARMV7/PrePostMDCT_v7.s b/media/libstagefright/codecs/aacenc/src/asm/ARMV7/PrePostMDCT_v7.s new file mode 100644 index 0000000..bf7dcba --- /dev/null +++ b/media/libstagefright/codecs/aacenc/src/asm/ARMV7/PrePostMDCT_v7.s @@ -0,0 +1,135 @@ +@/*
+@ ** 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.
+@ */
+
+@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+@ File: PrePostMDCT_v7.s
+@
+@ Content: premdct and postmdct function armv7 assemble
+@
+@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+
+ .section .text
+ .global PreMDCT
+
+PreMDCT:
+ stmdb sp!, {r4 - r11, lr}
+
+ add r9, r0, r1, lsl #2
+ sub r3, r9, #32
+
+ movs r1, r1, asr #2
+ beq PreMDCT_END
+
+PreMDCT_LOOP:
+ VLD4.I32 {d0, d2, d4, d6}, [r2]! @ cosa = *csptr++@ sina = *csptr++@
+ VLD4.I32 {d1, d3, d5, d7}, [r2]! @ cosb = *csptr++@ sinb = *csptr++@
+ VLD2.I32 {d8, d9, d10, d11}, [r0] @ tr1 = *(buf0 + 0)@ ti2 = *(buf0 + 1)@
+ VLD2.I32 {d13, d15}, [r3]! @ tr2 = *(buf1 - 1)@ ti1 = *(buf1 + 0)@
+ VLD2.I32 {d12, d14}, [r3]! @ tr2 = *(buf1 - 1)@ ti1 = *(buf1 + 0)@
+
+ VREV64.32 Q8, Q7
+ VREV64.32 Q9, Q6
+
+
+ VQDMULH.S32 Q10, Q0, Q4 @ MULHIGH(cosa, tr1)
+ VQDMULH.S32 Q11, Q1, Q8 @ MULHIGH(sina, ti1)
+ VQDMULH.S32 Q12, Q0, Q8 @ MULHIGH(cosa, ti1)
+ VQDMULH.S32 Q13, Q1, Q4 @ MULHIGH(sina, tr1)
+
+ VADD.S32 Q0, Q10, Q11 @ *buf0++ = MULHIGH(cosa, tr1) + MULHIGH(sina, ti1)@
+ VSUB.S32 Q1, Q12, Q13 @ *buf0++ = MULHIGH(cosa, ti1) - MULHIGH(sina, tr1)@
+
+ VST2.I32 {d0, d1, d2, d3}, [r0]!
+ sub r3, r3, #32
+
+ VQDMULH.S32 Q10, Q2, Q9 @ MULHIGH(cosb, tr2)
+ VQDMULH.S32 Q11, Q3, Q5 @ MULHIGH(sinb, ti2)
+ VQDMULH.S32 Q12, Q2, Q5 @ MULHIGH(cosb, ti2)
+ VQDMULH.S32 Q13, Q3, Q9 @ MULHIGH(sinb, tr2)
+
+ VADD.S32 Q0, Q10, Q11 @ MULHIGH(cosa, tr2) + MULHIGH(sina, ti2)@
+ VSUB.S32 Q1, Q12, Q13 @ MULHIGH(cosa, ti2) - MULHIGH(sina, tr2)@
+
+ VREV64.32 Q3, Q1
+ VREV64.32 Q2, Q0
+
+ VST2.I32 {d5, d7}, [r3]!
+ VST2.I32 {d4, d6}, [r3]!
+
+ subs r1, r1, #4
+ sub r3, r3, #64
+ bne PreMDCT_LOOP
+
+PreMDCT_END:
+ ldmia sp!, {r4 - r11, pc}
+ @ENDP @ |PreMDCT|
+
+ .section .text
+ .global PostMDCT
+
+PostMDCT:
+ stmdb sp!, {r4 - r11, lr}
+
+ add r9, r0, r1, lsl #2
+ sub r3, r9, #32
+
+ movs r1, r1, asr #2
+ beq PostMDCT_END
+
+PostMDCT_LOOP:
+ VLD4.I32 {d0, d2, d4, d6}, [r2]! @ cosa = *csptr++@ sina = *csptr++@
+ VLD4.I32 {d1, d3, d5, d7}, [r2]! @ cosb = *csptr++@ sinb = *csptr++@
+ VLD2.I32 {d8, d9, d10, d11}, [r0] @ tr1 = *(zbuf1 + 0)@ ti1 = *(zbuf1 + 1)@
+ VLD2.I32 {d13, d15}, [r3]! @ tr2 = *(zbuf2 - 1)@ ti2 = *(zbuf2 + 0)@
+ VLD2.I32 {d12, d14}, [r3]! @ tr2 = *(zbuf2 - 1)@ ti2 = *(zbuf2 + 0)@
+
+ VREV64.32 Q8, Q6
+ VREV64.32 Q9, Q7
+
+ VQDMULH.S32 Q10, Q0, Q4 @ MULHIGH(cosa, tr1)
+ VQDMULH.S32 Q11, Q1, Q5 @ MULHIGH(sina, ti1)
+ VQDMULH.S32 Q12, Q0, Q5 @ MULHIGH(cosa, ti1)
+ VQDMULH.S32 Q13, Q1, Q4 @ MULHIGH(sina, tr1)
+
+ VADD.S32 Q0, Q10, Q11 @ *buf0++ = MULHIGH(cosa, tr1) + MULHIGH(sina, ti1)@
+ VSUB.S32 Q5, Q13, Q12 @ *buf1-- = MULHIGH(sina, tr1) - MULHIGH(cosa, ti1)@
+
+ VQDMULH.S32 Q10, Q2, Q8 @ MULHIGH(cosb, tr2)
+ VQDMULH.S32 Q11, Q3, Q9 @ MULHIGH(sinb, ti2)
+ VQDMULH.S32 Q12, Q2, Q9 @ MULHIGH(cosb, ti2)
+ VQDMULH.S32 Q13, Q3, Q8 @ MULHIGH(sinb, tr2)
+
+ VADD.S32 Q4, Q10, Q11 @ *buf1-- = MULHIGH(cosa, tr2) + MULHIGH(sina, ti2)@
+ VSUB.S32 Q1, Q13, Q12 @ *buf0++ = MULHIGH(sina, tr2) - MULHIGH(cosa, ti2)@
+
+ VREV64.32 Q2, Q4
+ VREV64.32 Q3, Q5
+
+ sub r3, r3, #32
+ VST2.I32 {d0, d1, d2, d3}, [r0]!
+
+ VST2.I32 {d5, d7}, [r3]!
+ VST2.I32 {d4, d6}, [r3]!
+
+ subs r1, r1, #4
+ sub r3, r3, #64
+ bne PostMDCT_LOOP
+
+PostMDCT_END:
+ ldmia sp!, {r4 - r11, pc}
+
+ @ENDP @ |PostMDCT|
+ .end
\ No newline at end of file |