diff options
Diffstat (limited to 'media/libvpx/libvpx/vp9/encoder/x86/vp9_error_sse2.asm')
-rw-r--r-- | media/libvpx/libvpx/vp9/encoder/x86/vp9_error_sse2.asm | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vp9/encoder/x86/vp9_error_sse2.asm b/media/libvpx/libvpx/vp9/encoder/x86/vp9_error_sse2.asm new file mode 100644 index 0000000000..7beec130ab --- /dev/null +++ b/media/libvpx/libvpx/vp9/encoder/x86/vp9_error_sse2.asm @@ -0,0 +1,115 @@ +; +; Copyright (c) 2010 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 vp9 + +%include "third_party/x86inc/x86inc.asm" +%include "vpx_dsp/x86/bitdepth_conversion_sse2.asm" + +SECTION .text + +; int64_t vp9_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 +.loop: + LOAD_TRAN_LOW 2, uqcq, 0 + LOAD_TRAN_LOW 0, dqcq, 0 + LOAD_TRAN_LOW 3, uqcq, 8 + LOAD_TRAN_LOW 1, dqcq, 8 + INCREMENT_ELEMENTS_TRAN_LOW uqcq, 16 + INCREMENT_ELEMENTS_TRAN_LOW dqcq, 16 + sub sizeq, 16 + 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 + ; the sum of 2 31bit integers will fit in a 32bit unsigned integer + paddd m0, m1 + paddd m2, m3 + ; accumulate in 64bit + punpckldq m7, m0, m5 + punpckhdq m0, m5 + paddq m4, m7 + punpckldq m7, m2, m5 + paddq m4, m0 + punpckhdq m2, m5 + paddq m6, m7 + paddq m6, m2 + jg .loop + + ; accumulate horizontally and store in return value + movhlps m5, m4 + movhlps m7, m6 + paddq m4, m5 + paddq m6, m7 +%if VPX_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 + +; Compute the sum of squared difference between two tran_low_t vectors. +; Vectors are converted (if necessary) to int16_t for calculations. +; int64_t vp9_block_error_fp(tran_low_t *coeff, tran_low_t *dqcoeff, +; intptr_t block_size) + +INIT_XMM sse2 +cglobal block_error_fp, 3, 3, 6, uqc, dqc, size + pxor m4, m4 ; sse accumulator + pxor m5, m5 ; dedicated zero register +.loop: + LOAD_TRAN_LOW 2, uqcq, 0 + LOAD_TRAN_LOW 0, dqcq, 0 + LOAD_TRAN_LOW 3, uqcq, 8 + LOAD_TRAN_LOW 1, dqcq, 8 + INCREMENT_ELEMENTS_TRAN_LOW uqcq, 16 + INCREMENT_ELEMENTS_TRAN_LOW dqcq, 16 + sub sizeq, 16 + 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 + ; the sum of 2 31bit integers will fit in a 32bit unsigned integer + paddd m0, m1 + ; accumulate in 64bit + punpckldq m3, m0, m5 + punpckhdq m0, m5 + paddq m4, m3 + paddq m4, m0 + jnz .loop + + ; accumulate horizontally and store in return value + movhlps m5, m4 + paddq m4, m5 +%if VPX_ARCH_X86_64 + movq rax, m4 +%else + pshufd m5, m4, 0x1 + movd eax, m4 + movd edx, m5 +%endif + RET |