summaryrefslogtreecommitdiffstats
path: root/media/libaom/src/av1/encoder/x86/error_sse2.asm
diff options
context:
space:
mode:
Diffstat (limited to 'media/libaom/src/av1/encoder/x86/error_sse2.asm')
-rw-r--r--media/libaom/src/av1/encoder/x86/error_sse2.asm79
1 files changed, 79 insertions, 0 deletions
diff --git a/media/libaom/src/av1/encoder/x86/error_sse2.asm b/media/libaom/src/av1/encoder/x86/error_sse2.asm
new file mode 100644
index 000000000..72e9e22b1
--- /dev/null
+++ b/media/libaom/src/av1/encoder/x86/error_sse2.asm
@@ -0,0 +1,79 @@
+;
+; 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
+
+; int64_t av1_block_error(int16_t *coeff, int16_t *dqcoeff, intptr_t block_size,
+; int64_t *ssz)
+
+INIT_XMM sse2
+cglobal block_error, 3, 3, 8, uqc, dqc, size, ssz
+ pxor m4, m4 ; sse accumulator
+ pxor m6, m6 ; ssz accumulator
+ pxor m5, m5 ; dedicated zero register
+ lea uqcq, [uqcq+sizeq*2]
+ lea dqcq, [dqcq+sizeq*2]
+ neg sizeq
+.loop:
+ mova m2, [uqcq+sizeq*2]
+ mova m0, [dqcq+sizeq*2]
+ mova m3, [uqcq+sizeq*2+mmsize]
+ mova m1, [dqcq+sizeq*2+mmsize]
+ psubw m0, m2
+ psubw m1, m3
+ ; individual errors are max. 15bit+sign, so squares are 30bit, and
+ ; thus the sum of 2 should fit in a 31bit integer (+ unused sign bit)
+ pmaddwd m0, m0
+ pmaddwd m1, m1
+ pmaddwd m2, m2
+ pmaddwd m3, m3
+ ; accumulate in 64bit
+ punpckldq m7, m0, m5
+ punpckhdq m0, m5
+ paddq m4, m7
+ punpckldq m7, m1, m5
+ paddq m4, m0
+ punpckhdq m1, m5
+ paddq m4, m7
+ punpckldq m7, m2, m5
+ paddq m4, m1
+ punpckhdq m2, m5
+ paddq m6, m7
+ punpckldq m7, m3, m5
+ paddq m6, m2
+ punpckhdq m3, m5
+ paddq m6, m7
+ paddq m6, m3
+ add sizeq, mmsize
+ jl .loop
+
+ ; accumulate horizontally and store in return value
+ movhlps m5, m4
+ movhlps m7, m6
+ paddq m4, m5
+ paddq m6, m7
+%if ARCH_X86_64
+ movq rax, m4
+ movq [sszq], m6
+%else
+ mov eax, sszm
+ pshufd m5, m4, 0x1
+ movq [eax], m6
+ movd eax, m4
+ movd edx, m5
+%endif
+ RET