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| 1 ; |
| 2 ; Copyright (c) 2014 The WebM project authors. All Rights Reserved. |
| 3 ; |
| 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 |
| 6 ; tree. An additional intellectual property rights grant can be found |
| 7 ; in the file PATENTS. All contributing project authors may |
| 8 ; be found in the AUTHORS file in the root of the source tree. |
| 9 ; |
| 10 %include "third_party/x86inc/x86inc.asm" |
| 11 |
| 12 SECTION .text |
| 13 |
| 14 %macro TRANSFORM_COLS 0 |
| 15 paddw m0, m1 |
| 16 movq m4, m0 |
| 17 psubw m3, m2 |
| 18 psubw m4, m3 |
| 19 psraw m4, 1 |
| 20 movq m5, m4 |
| 21 psubw m5, m1 ;b1 |
| 22 psubw m4, m2 ;c1 |
| 23 psubw m0, m4 |
| 24 paddw m3, m5 |
| 25 ; m0 a0 |
| 26 SWAP 1, 4 ; m1 c1 |
| 27 SWAP 2, 3 ; m2 d1 |
| 28 SWAP 3, 5 ; m3 b1 |
| 29 %endmacro |
| 30 |
| 31 %macro TRANSPOSE_4X4 0 |
| 32 movq m4, m0 |
| 33 movq m5, m2 |
| 34 punpcklwd m4, m1 |
| 35 punpckhwd m0, m1 |
| 36 punpcklwd m5, m3 |
| 37 punpckhwd m2, m3 |
| 38 movq m1, m4 |
| 39 movq m3, m0 |
| 40 punpckldq m1, m5 |
| 41 punpckhdq m4, m5 |
| 42 punpckldq m3, m2 |
| 43 punpckhdq m0, m2 |
| 44 SWAP 2, 3, 0, 1, 4 |
| 45 %endmacro |
| 46 |
| 47 INIT_MMX mmx |
| 48 cglobal fwht4x4, 3, 4, 8, input, output, stride |
| 49 lea r3q, [inputq + strideq*4] |
| 50 movq m0, [inputq] ;a1 |
| 51 movq m1, [inputq + strideq*2] ;b1 |
| 52 movq m2, [r3q] ;c1 |
| 53 movq m3, [r3q + strideq*2] ;d1 |
| 54 |
| 55 TRANSFORM_COLS |
| 56 TRANSPOSE_4X4 |
| 57 TRANSFORM_COLS |
| 58 TRANSPOSE_4X4 |
| 59 |
| 60 psllw m0, 2 |
| 61 psllw m1, 2 |
| 62 psllw m2, 2 |
| 63 psllw m3, 2 |
| 64 |
| 65 movq [outputq], m0 |
| 66 movq [outputq + 8], m1 |
| 67 movq [outputq + 16], m2 |
| 68 movq [outputq + 24], m3 |
| 69 |
| 70 RET |
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Chromium Code Reviews
Issue 290653003:
libvpx: Pull from upstream (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/libvpx/