| Index: third_party/libvpx/source/libvpx/vp8/common/arm/armv6/iwalsh_v6.asm
|
| diff --git a/third_party/libvpx/source/libvpx/vp8/common/arm/armv6/iwalsh_v6.asm b/third_party/libvpx/source/libvpx/vp8/common/arm/armv6/iwalsh_v6.asm
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..31ef09cada3f1838d82d54de98244cd41d486b2b
|
| --- /dev/null
|
| +++ b/third_party/libvpx/source/libvpx/vp8/common/arm/armv6/iwalsh_v6.asm
|
| @@ -0,0 +1,136 @@
|
| +;
|
| +; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
| +;
|
| +; Use of this source code is governed by a BSD-style license
|
| +; that can be found in the LICENSE file in the root of the source
|
| +; tree. An additional intellectual property rights grant can be found
|
| +; in the file PATENTS. All contributing project authors may
|
| +; be found in the AUTHORS file in the root of the source tree.
|
| +;
|
| +
|
| + EXPORT |vp8_short_inv_walsh4x4_v6|
|
| +
|
| + ARM
|
| + REQUIRE8
|
| + PRESERVE8
|
| +
|
| + AREA |.text|, CODE, READONLY ; name this block of code
|
| +
|
| +;short vp8_short_inv_walsh4x4_v6(short *input, short *mb_dqcoeff)
|
| +|vp8_short_inv_walsh4x4_v6| PROC
|
| +
|
| + stmdb sp!, {r4 - r12, lr}
|
| +
|
| + ldr r2, [r0, #0] ; [1 | 0]
|
| + ldr r3, [r0, #4] ; [3 | 2]
|
| + ldr r4, [r0, #8] ; [5 | 4]
|
| + ldr r5, [r0, #12] ; [7 | 6]
|
| + ldr r6, [r0, #16] ; [9 | 8]
|
| + ldr r7, [r0, #20] ; [11 | 10]
|
| + ldr r8, [r0, #24] ; [13 | 12]
|
| + ldr r9, [r0, #28] ; [15 | 14]
|
| +
|
| + qadd16 r10, r2, r8 ; a1 [1+13 | 0+12]
|
| + qadd16 r11, r4, r6 ; b1 [5+9 | 4+8]
|
| + qsub16 r12, r4, r6 ; c1 [5-9 | 4-8]
|
| + qsub16 lr, r2, r8 ; d1 [1-13 | 0-12]
|
| +
|
| + qadd16 r2, r10, r11 ; a1 + b1 [1 | 0]
|
| + qadd16 r4, r12, lr ; c1 + d1 [5 | 4]
|
| + qsub16 r6, r10, r11 ; a1 - b1 [9 | 8]
|
| + qsub16 r8, lr, r12 ; d1 - c1 [13 | 12]
|
| +
|
| + qadd16 r10, r3, r9 ; a1 [3+15 | 2+14]
|
| + qadd16 r11, r5, r7 ; b1 [7+11 | 6+10]
|
| + qsub16 r12, r5, r7 ; c1 [7-11 | 6-10]
|
| + qsub16 lr, r3, r9 ; d1 [3-15 | 2-14]
|
| +
|
| + qadd16 r3, r10, r11 ; a1 + b1 [3 | 2]
|
| + qadd16 r5, r12, lr ; c1 + d1 [7 | 6]
|
| + qsub16 r7, r10, r11 ; a1 - b1 [11 | 10]
|
| + qsub16 r9, lr, r12 ; d1 - c1 [15 | 14]
|
| +
|
| + ; first transform complete
|
| +
|
| + qsubaddx r10, r2, r3 ; [c1|a1] [1-2 | 0+3]
|
| + qaddsubx r11, r2, r3 ; [b1|d1] [1+2 | 0-3]
|
| + qsubaddx r12, r4, r5 ; [c1|a1] [5-6 | 4+7]
|
| + qaddsubx lr, r4, r5 ; [b1|d1] [5+6 | 4-7]
|
| +
|
| + qaddsubx r2, r10, r11 ; [b2|c2] [c1+d1 | a1-b1]
|
| + qaddsubx r3, r11, r10 ; [a2|d2] [b1+a1 | d1-c1]
|
| + ldr r10, c0x00030003
|
| + qaddsubx r4, r12, lr ; [b2|c2] [c1+d1 | a1-b1]
|
| + qaddsubx r5, lr, r12 ; [a2|d2] [b1+a1 | d1-c1]
|
| +
|
| + qadd16 r2, r2, r10 ; [b2+3|c2+3]
|
| + qadd16 r3, r3, r10 ; [a2+3|d2+3]
|
| + qadd16 r4, r4, r10 ; [b2+3|c2+3]
|
| + qadd16 r5, r5, r10 ; [a2+3|d2+3]
|
| +
|
| + asr r12, r3, #19 ; [0]
|
| + strh r12, [r1], #32
|
| + asr lr, r2, #19 ; [1]
|
| + strh lr, [r1], #32
|
| + sxth r2, r2
|
| + sxth r3, r3
|
| + asr r2, r2, #3 ; [2]
|
| + strh r2, [r1], #32
|
| + asr r3, r3, #3 ; [3]
|
| + strh r3, [r1], #32
|
| +
|
| + asr r12, r5, #19 ; [4]
|
| + strh r12, [r1], #32
|
| + asr lr, r4, #19 ; [5]
|
| + strh lr, [r1], #32
|
| + sxth r4, r4
|
| + sxth r5, r5
|
| + asr r4, r4, #3 ; [6]
|
| + strh r4, [r1], #32
|
| + asr r5, r5, #3 ; [7]
|
| + strh r5, [r1], #32
|
| +
|
| + qsubaddx r2, r6, r7 ; [c1|a1] [9-10 | 8+11]
|
| + qaddsubx r3, r6, r7 ; [b1|d1] [9+10 | 8-11]
|
| + qsubaddx r4, r8, r9 ; [c1|a1] [13-14 | 12+15]
|
| + qaddsubx r5, r8, r9 ; [b1|d1] [13+14 | 12-15]
|
| +
|
| + qaddsubx r6, r2, r3 ; [b2|c2] [c1+d1 | a1-b1]
|
| + qaddsubx r7, r3, r2 ; [a2|d2] [b1+a1 | d1-c1]
|
| + qaddsubx r8, r4, r5 ; [b2|c2] [c1+d1 | a1-b1]
|
| + qaddsubx r9, r5, r4 ; [a2|d2] [b1+a1 | d1-c1]
|
| +
|
| + qadd16 r6, r6, r10 ; [b2+3|c2+3]
|
| + qadd16 r7, r7, r10 ; [a2+3|d2+3]
|
| + qadd16 r8, r8, r10 ; [b2+3|c2+3]
|
| + qadd16 r9, r9, r10 ; [a2+3|d2+3]
|
| +
|
| + asr r12, r7, #19 ; [8]
|
| + strh r12, [r1], #32
|
| + asr lr, r6, #19 ; [9]
|
| + strh lr, [r1], #32
|
| + sxth r6, r6
|
| + sxth r7, r7
|
| + asr r6, r6, #3 ; [10]
|
| + strh r6, [r1], #32
|
| + asr r7, r7, #3 ; [11]
|
| + strh r7, [r1], #32
|
| +
|
| + asr r12, r9, #19 ; [12]
|
| + strh r12, [r1], #32
|
| + asr lr, r8, #19 ; [13]
|
| + strh lr, [r1], #32
|
| + sxth r8, r8
|
| + sxth r9, r9
|
| + asr r8, r8, #3 ; [14]
|
| + strh r8, [r1], #32
|
| + asr r9, r9, #3 ; [15]
|
| + strh r9, [r1], #32
|
| +
|
| + ldmia sp!, {r4 - r12, pc}
|
| + ENDP ; |vp8_short_inv_walsh4x4_v6|
|
| +
|
| +
|
| +; Constant Pool
|
| +c0x00030003 DCD 0x00030003
|
| + END
|
|
|