Index: source/libvpx/vp9/encoder/x86/vp9_dct_mmx.asm |
=================================================================== |
--- source/libvpx/vp9/encoder/x86/vp9_dct_mmx.asm (revision 0) |
+++ source/libvpx/vp9/encoder/x86/vp9_dct_mmx.asm (revision 0) |
@@ -0,0 +1,70 @@ |
+; |
+; 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. |
+; |
+%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 |
+ |
+ movq [outputq], m0 |
+ movq [outputq + 8], m1 |
+ movq [outputq + 16], m2 |
+ movq [outputq + 24], m3 |
+ |
+ RET |