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| 1 ; | 1 ; |
| 2 ; Copyright (c) 2010 The WebM project authors. All Rights Reserved. | 2 ; Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
| 3 ; | 3 ; |
| 4 ; Use of this source code is governed by a BSD-style license | 4 ; Use of this source code is governed by a BSD-style license |
| 5 ; that can be found in the LICENSE file in the root of the source | 5 ; that can be found in the LICENSE file in the root of the source |
| 6 ; tree. An additional intellectual property rights grant can be found | 6 ; tree. An additional intellectual property rights grant can be found |
| 7 ; in the file PATENTS. All contributing project authors may | 7 ; in the file PATENTS. All contributing project authors may |
| 8 ; be found in the AUTHORS file in the root of the source tree. | 8 ; be found in the AUTHORS file in the root of the source tree. |
| 9 ; | 9 ; |
| 10 | 10 |
| (...skipping 13 matching lines...) Expand all Loading... |
| 24 ;************************************************************* | 24 ;************************************************************* |
| 25 ;static const int cospi8sqrt2minus1=20091; | 25 ;static const int cospi8sqrt2minus1=20091; |
| 26 ;static const int sinpi8sqrt2 =35468; | 26 ;static const int sinpi8sqrt2 =35468; |
| 27 ;static const int rounding = 0; | 27 ;static const int rounding = 0; |
| 28 ;Optimization note: The resulted data from dequantization are signed 13-bit data
that is | 28 ;Optimization note: The resulted data from dequantization are signed 13-bit data
that is |
| 29 ;in the range of [-4096, 4095]. This allows to use "vqdmulh"(neon) instruction s
ince | 29 ;in the range of [-4096, 4095]. This allows to use "vqdmulh"(neon) instruction s
ince |
| 30 ;it won't go out of range (13+16+1=30bits<32bits). This instruction gives the hi
gh half | 30 ;it won't go out of range (13+16+1=30bits<32bits). This instruction gives the hi
gh half |
| 31 ;result of the multiplication that is needed in IDCT. | 31 ;result of the multiplication that is needed in IDCT. |
| 32 | 32 |
| 33 |vp8_short_idct4x4llm_neon| PROC | 33 |vp8_short_idct4x4llm_neon| PROC |
| 34 ldr r12, _idct_coeff_ | 34 adr r12, idct_coeff |
| 35 vld1.16 {q1, q2}, [r0] | 35 vld1.16 {q1, q2}, [r0] |
| 36 vld1.16 {d0}, [r12] | 36 vld1.16 {d0}, [r12] |
| 37 | 37 |
| 38 vswp d3, d4 ;q2(vp[4] vp[12]) | 38 vswp d3, d4 ;q2(vp[4] vp[12]) |
| 39 | 39 |
| 40 vqdmulh.s16 q3, q2, d0[2] | 40 vqdmulh.s16 q3, q2, d0[2] |
| 41 vqdmulh.s16 q4, q2, d0[0] | 41 vqdmulh.s16 q4, q2, d0[0] |
| 42 | 42 |
| 43 vqadd.s16 d12, d2, d3 ;a1 | 43 vqadd.s16 d12, d2, d3 ;a1 |
| 44 vqsub.s16 d13, d2, d3 ;b1 | 44 vqsub.s16 d13, d2, d3 ;b1 |
| (...skipping 62 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 107 vst1.16 {d3}, [r3] | 107 vst1.16 {d3}, [r3] |
| 108 vst1.16 {d4}, [r12] | 108 vst1.16 {d4}, [r12] |
| 109 vst1.16 {d5}, [r0] | 109 vst1.16 {d5}, [r0] |
| 110 | 110 |
| 111 bx lr | 111 bx lr |
| 112 | 112 |
| 113 ENDP | 113 ENDP |
| 114 | 114 |
| 115 ;----------------- | 115 ;----------------- |
| 116 | 116 |
| 117 _idct_coeff_ | |
| 118 DCD idct_coeff | |
| 119 idct_coeff | 117 idct_coeff |
| 120 DCD 0x4e7b4e7b, 0x8a8c8a8c | 118 DCD 0x4e7b4e7b, 0x8a8c8a8c |
| 121 | 119 |
| 122 ;20091, 20091, 35468, 35468 | 120 ;20091, 20091, 35468, 35468 |
| 123 | 121 |
| 124 END | 122 END |
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Chromium Code Reviews
Issue 7671004:
Update libvpx snapshot to v0.9.7-p1 (Cayuga). (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/libvpx/