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Diffstat (limited to 'third_party/aom/av1/encoder/x86/dct_sse2.asm')
-rw-r--r--third_party/aom/av1/encoder/x86/dct_sse2.asm82
1 files changed, 82 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/x86/dct_sse2.asm b/third_party/aom/av1/encoder/x86/dct_sse2.asm
new file mode 100644
index 0000000000..b185548184
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+++ b/third_party/aom/av1/encoder/x86/dct_sse2.asm
@@ -0,0 +1,82 @@
+;
+; Copyright (c) 2016, Alliance for Open Media. All rights reserved
+;
+; This source code is subject to the terms of the BSD 2 Clause License and
+; the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+; was not distributed with this source code in the LICENSE file, you can
+; obtain it at www.aomedia.org/license/software. If the Alliance for Open
+; Media Patent License 1.0 was not distributed with this source code in the
+; PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+;
+
+%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
+ ; 00 01 02 03
+ ; 10 11 12 13
+ ; 20 21 22 23
+ ; 30 31 32 33
+ punpcklwd m0, m1 ; 00 10 01 11 02 12 03 13
+ punpcklwd m2, m3 ; 20 30 21 31 22 32 23 33
+ mova m1, m0
+ punpckldq m0, m2 ; 00 10 20 30 01 11 21 31
+ punpckhdq m1, m2 ; 02 12 22 32 03 13 23 33
+%endmacro
+
+INIT_XMM sse2
+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
+ SWAP 1, 2
+ psrldq m1, m0, 8
+ psrldq m3, m2, 8
+ TRANSFORM_COLS
+ TRANSPOSE_4X4
+
+ psllw m0, 2
+ psllw m1, 2
+
+ ; sign extension
+ mova m2, m0
+ mova m3, m1
+ punpcklwd m0, m0
+ punpcklwd m1, m1
+ punpckhwd m2, m2
+ punpckhwd m3, m3
+ psrad m0, 16
+ psrad m1, 16
+ psrad m2, 16
+ psrad m3, 16
+ mova [outputq], m0
+ mova [outputq + 16], m2
+ mova [outputq + 32], m1
+ mova [outputq + 48], m3
+
+ RET