| ; | |
| ; Copyright (c) 2014 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. | |
| ; | |
| %define private_prefix av1 | |
| %include "third_party/x86inc/x86inc.asm" | |
| SECTION .text | |
| %macro TRANSFORM_COLS 0 | |
| paddw m0, m1 | |
| movq m4, m0 | |
| psubw m3, m2 | |
| psubw m4, m3 | |
| psraw m4, 1 | |
| movq m5, m4 | |
| psubw m5, m1 ;b1 | |
| psubw m4, m2 ;c1 | |
| psubw m0, m4 | |
| paddw m3, m5 | |
| ; m0 a0 | |
| SWAP 1, 4 ; m1 c1 | |
| SWAP 2, 3 ; m2 d1 | |
| SWAP 3, 5 ; m3 b1 | |
| %endmacro | |
| %macro TRANSPOSE_4X4 0 | |
| movq m4, m0 | |
| movq m5, m2 | |
| punpcklwd m4, m1 | |
| punpckhwd m0, m1 | |
| punpcklwd m5, m3 | |
| punpckhwd m2, m3 | |
| movq m1, m4 | |
| movq m3, m0 | |
| punpckldq m1, m5 | |
| punpckhdq m4, m5 | |
| punpckldq m3, m2 | |
| punpckhdq m0, m2 | |
| SWAP 2, 3, 0, 1, 4 | |
| %endmacro | |
| INIT_MMX mmx | |
| cglobal fwht4x4, 3, 4, 8, input, output, stride | |
| lea r3q, [inputq + strideq*4] | |
| movq m0, [inputq] ;a1 | |
| movq m1, [inputq + strideq*2] ;b1 | |
| movq m2, [r3q] ;c1 | |
| movq m3, [r3q + strideq*2] ;d1 | |
| TRANSFORM_COLS | |
| TRANSPOSE_4X4 | |
| TRANSFORM_COLS | |
| TRANSPOSE_4X4 | |
| psllw m0, 2 | |
| psllw m1, 2 | |
| psllw m2, 2 | |
| psllw m3, 2 | |
| %if CONFIG_AOM_HIGHBITDEPTH | |
| pxor m4, m4 | |
| pxor m5, m5 | |
| pcmpgtw m4, m0 | |
| pcmpgtw m5, m1 | |
| movq m6, m0 | |
| movq m7, m1 | |
| punpcklwd m0, m4 | |
| punpcklwd m1, m5 | |
| punpckhwd m6, m4 | |
| punpckhwd m7, m5 | |
| movq [outputq], m0 | |
| movq [outputq + 8], m6 | |
| movq [outputq + 16], m1 | |
| movq [outputq + 24], m7 | |
| pxor m4, m4 | |
| pxor m5, m5 | |
| pcmpgtw m4, m2 | |
| pcmpgtw m5, m3 | |
| movq m6, m2 | |
| movq m7, m3 | |
| punpcklwd m2, m4 | |
| punpcklwd m3, m5 | |
| punpckhwd m6, m4 | |
| punpckhwd m7, m5 | |
| movq [outputq + 32], m2 | |
| movq [outputq + 40], m6 | |
| movq [outputq + 48], m3 | |
| movq [outputq + 56], m7 | |
| %else | |
| movq [outputq], m0 | |
| movq [outputq + 8], m1 | |
| movq [outputq + 16], m2 | |
| movq [outputq + 24], m3 | |
| %endif | |
| RET |