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| 1 ; Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 ; Use of this source code is governed by a BSD-style license that can be | |
| 3 ; found in the LICENSE file. | |
| 4 | |
| 5 %include "media/base/simd/media_export.asm" | |
| 6 | |
| 7 EXPORT SYMBOL | |
| 8 align function_align | |
| 9 | |
| 10 mangle(SYMBOL): | |
| 11 %assign stack_offset 0 | |
| 12 | |
| 13 ; Parameters are in the following order: | |
| 14 ; 1. Y plane | |
| 15 ; 2. U plane | |
| 16 ; 3. V plane | |
| 17 ; 4. ARGB frame | |
| 18 ; 5. Width | |
| 19 ; 6. Source dx | |
| 20 ; 7. Lookup table address | |
| 21 | |
| 22 PROLOGUE 7, 7, 3, Y, U, V, ARGB, R1, R2, TEMP | |
| 23 | |
| 24 %ifdef ARCH_X86_64 | |
| 25 %define WORD_SIZE QWORD | |
| 26 %else | |
| 27 %define WORD_SIZE DWORD | |
| 28 %endif | |
| 29 | |
| 30 PUSH R1q ; Width | |
| 31 PUSH R2q ; Source dx | |
| 32 | |
| 33 %define SOURCE_DX WORD_SIZE [rsp] | |
| 34 | |
| 35 mov R1q, TEMPq | |
| 36 | |
| 37 %define WIDTH WORD_SIZE [rsp + gprsize] | |
| 38 %define TABLE R1q | |
| 39 %define Xq R2q | |
| 40 | |
| 41 ; Set Xq index to 0. | |
| 42 xor Xq, Xq | |
| 43 jmp .scaleend | |
| 44 | |
| 45 .scaleloop: | |
| 46 mov TEMPq, Xq | |
| 47 sar TEMPq, 17 | |
| 48 movzx TEMPd, BYTE [Uq + TEMPq] | |
| 49 movq mm0, [TABLE + 2048 + 8 * TEMPq] | |
| 50 mov TEMPq, Xq | |
| 51 sar TEMPq, 17 | |
| 52 movzx TEMPd, BYTE [Vq + TEMPq] | |
| 53 paddsw mm0, [TABLE + 4096 + 8 * TEMPq] | |
| 54 mov TEMPq, Xq | |
| 55 add Xq, SOURCE_DX | |
| 56 sar TEMPq, 16 | |
| 57 movzx TEMPd, BYTE [Yq + TEMPq] | |
| 58 movq mm1, [TABLE + 8 * TEMPq] | |
| 59 mov TEMPq, Xq | |
| 60 add Xq, SOURCE_DX | |
| 61 sar TEMPq, 16 | |
| 62 movzx TEMPd, BYTE [Yq + TEMPq] | |
| 63 movq mm2, [TABLE + 8 * TEMPq] | |
| 64 paddsw mm1, mm0 | |
| 65 paddsw mm2, mm0 | |
| 66 psraw mm1, 6 | |
| 67 psraw mm2, 6 | |
| 68 packuswb mm1, mm2 | |
| 69 MOVQ QWORD [ARGBq], mm1 | |
| 70 add ARGBq, 8 | |
| 71 | |
| 72 .scaleend: | |
| 73 sub WIDTH, 2 | |
| 74 jns .scaleloop | |
| 75 | |
| 76 and WIDTH, 1 ; odd number of pixels? | |
| 77 jz .scaledone | |
| 78 | |
| 79 mov TEMPq, Xq | |
| 80 sar TEMPq, 17 | |
| 81 movzx TEMPd, BYTE [Uq + TEMPq] | |
| 82 movq mm0, [TABLE + 2048 + 8 * TEMPq] | |
| 83 mov TEMPq, Xq | |
| 84 sar TEMPq, 17 | |
| 85 movzx TEMPd, BYTE [Vq + TEMPq] | |
| 86 paddsw mm0, [TABLE + 4096 + 8 * TEMPq] | |
| 87 mov TEMPq, Xq | |
| 88 sar TEMPq, 16 | |
| 89 movzx TEMPd, BYTE [Yq + TEMPq] | |
| 90 movq mm1, [TABLE + 8 * TEMPq] | |
| 91 paddsw mm1, mm0 | |
| 92 psraw mm1, 6 | |
| 93 packuswb mm1, mm1 | |
| 94 movd DWORD [ARGBq], mm1 | |
| 95 | |
| 96 .scaledone: | |
| 97 ADD rsp, 2 * gprsize | |
| 98 RET | |
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Chromium Code Reviews
Issue 2694113002:
Delete media/base/yuv_convert and dependents. Prefer libyuv. (Closed)
