361 lines
15 KiB
NASM
361 lines
15 KiB
NASM
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;
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; Floating-point FDCT (64-bit SSE)
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;
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; Copyright 2009 Pierre Ossman <[email protected]> for Cendio AB
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; Copyright (C) 2009, 2016, 2024-2025, D. R. Commander.
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; Copyright (C) 2023, Aliaksiej Kandracienka.
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;
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; Based on the x86 SIMD extension for IJG JPEG library
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; Copyright (C) 1999-2006, MIYASAKA Masaru.
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; For conditions of distribution and use, see copyright notice in jsimdext.inc
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;
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; This file should be assembled with NASM (Netwide Assembler) or Yasm.
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;
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; This file contains a floating-point implementation of the forward DCT
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; (Discrete Cosine Transform). The following code is based directly on the
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; IJG's original jfdctflt.c; see jfdctflt.c for more details.
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%include "jsimdext.inc"
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%include "jdct.inc"
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; --------------------------------------------------------------------------
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%macro unpcklps2 2 ; %1 = (0 1 2 3) / %2 = (4 5 6 7) => %1 = (0 1 4 5)
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shufps %1, %2, 0x44
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%endmacro
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%macro unpckhps2 2 ; %1 = (0 1 2 3) / %2 = (4 5 6 7) => %1 = (2 3 6 7)
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shufps %1, %2, 0xEE
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%endmacro
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; --------------------------------------------------------------------------
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SECTION SEG_CONST
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ALIGNZ 32
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GLOBAL_DATA(jconst_fdct_float_sse)
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EXTN(jconst_fdct_float_sse):
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PD_0_382 times 4 dd 0.382683432365089771728460
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PD_0_707 times 4 dd 0.707106781186547524400844
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PD_0_541 times 4 dd 0.541196100146196984399723
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PD_1_306 times 4 dd 1.306562964876376527856643
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ALIGNZ 32
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; --------------------------------------------------------------------------
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SECTION SEG_TEXT
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BITS 64
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; Perform the forward DCT on one block of samples.
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;
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; GLOBAL(void)
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; jsimd_fdct_float_sse(FAST_FLOAT *data)
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;
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; r10 = FAST_FLOAT *data
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%define wk(i) r15 - (WK_NUM - (i)) * SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
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%define WK_NUM 2
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align 32
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GLOBAL_FUNCTION(jsimd_fdct_float_sse)
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EXTN(jsimd_fdct_float_sse):
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ENDBR64
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push rbp
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mov rbp, rsp
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push r15
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and rsp, byte (-SIZEOF_XMMWORD) ; align to 128 bits
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; Allocate stack space for wk array. r15 is used to access it.
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mov r15, rsp
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sub rsp, byte (SIZEOF_XMMWORD * WK_NUM)
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COLLECT_ARGS 1
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; ---- Pass 1: process rows.
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mov rdx, r10 ; (FAST_FLOAT *)
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mov rcx, DCTSIZE / 4
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.rowloop:
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movaps xmm0, XMMWORD [XMMBLOCK(2, 0, rdx, SIZEOF_FAST_FLOAT)]
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movaps xmm1, XMMWORD [XMMBLOCK(3, 0, rdx, SIZEOF_FAST_FLOAT)]
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movaps xmm2, XMMWORD [XMMBLOCK(2, 1, rdx, SIZEOF_FAST_FLOAT)]
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movaps xmm3, XMMWORD [XMMBLOCK(3, 1, rdx, SIZEOF_FAST_FLOAT)]
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; xmm0 = (20 21 22 23)
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; xmm2 = (24 25 26 27)
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; xmm1 = (30 31 32 33)
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; xmm3 = (34 35 36 37)
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movaps xmm4, xmm0 ; transpose coefficients(phase 1)
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unpcklps xmm0, xmm1 ; xmm0 = (20 30 21 31)
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unpckhps xmm4, xmm1 ; xmm4 = (22 32 23 33)
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movaps xmm5, xmm2 ; transpose coefficients(phase 1)
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unpcklps xmm2, xmm3 ; xmm2 = (24 34 25 35)
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unpckhps xmm5, xmm3 ; xmm5 = (26 36 27 37)
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movaps xmm6, XMMWORD [XMMBLOCK(0, 0, rdx, SIZEOF_FAST_FLOAT)]
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movaps xmm7, XMMWORD [XMMBLOCK(1, 0, rdx, SIZEOF_FAST_FLOAT)]
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movaps xmm1, XMMWORD [XMMBLOCK(0, 1, rdx, SIZEOF_FAST_FLOAT)]
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movaps xmm3, XMMWORD [XMMBLOCK(1, 1, rdx, SIZEOF_FAST_FLOAT)]
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; xmm6 = (00 01 02 03)
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; xmm1 = (04 05 06 07)
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; xmm7 = (10 11 12 13)
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; xmm3 = (14 15 16 17)
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movaps XMMWORD [wk(0)], xmm4 ; wk(0) = (22 32 23 33)
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movaps XMMWORD [wk(1)], xmm2 ; wk(1) = (24 34 25 35)
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movaps xmm4, xmm6 ; transpose coefficients(phase 1)
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unpcklps xmm6, xmm7 ; xmm6 = (00 10 01 11)
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unpckhps xmm4, xmm7 ; xmm4 = (02 12 03 13)
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movaps xmm2, xmm1 ; transpose coefficients(phase 1)
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unpcklps xmm1, xmm3 ; xmm1 = (04 14 05 15)
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unpckhps xmm2, xmm3 ; xmm2 = (06 16 07 17)
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movaps xmm7, xmm6 ; transpose coefficients(phase 2)
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unpcklps2 xmm6, xmm0 ; xmm6 = (00 10 20 30) = data0
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unpckhps2 xmm7, xmm0 ; xmm7 = (01 11 21 31) = data1
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movaps xmm3, xmm2 ; transpose coefficients(phase 2)
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unpcklps2 xmm2, xmm5 ; xmm2 = (06 16 26 36) = data6
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unpckhps2 xmm3, xmm5 ; xmm3 = (07 17 27 37) = data7
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movaps xmm0, xmm7
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movaps xmm5, xmm6
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subps xmm7, xmm2 ; xmm7 = data1 - data6 = tmp6
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subps xmm6, xmm3 ; xmm6 = data0 - data7 = tmp7
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addps xmm0, xmm2 ; xmm0 = data1 + data6 = tmp1
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addps xmm5, xmm3 ; xmm5 = data0 + data7 = tmp0
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movaps xmm2, XMMWORD [wk(0)] ; xmm2 = (22 32 23 33)
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movaps xmm3, XMMWORD [wk(1)] ; xmm3 = (24 34 25 35)
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movaps XMMWORD [wk(0)], xmm7 ; wk(0) = tmp6
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movaps XMMWORD [wk(1)], xmm6 ; wk(1) = tmp7
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movaps xmm7, xmm4 ; transpose coefficients(phase 2)
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unpcklps2 xmm4, xmm2 ; xmm4 = (02 12 22 32) = data2
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unpckhps2 xmm7, xmm2 ; xmm7 = (03 13 23 33) = data3
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movaps xmm6, xmm1 ; transpose coefficients(phase 2)
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unpcklps2 xmm1, xmm3 ; xmm1 = (04 14 24 34) = data4
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unpckhps2 xmm6, xmm3 ; xmm6 = (05 15 25 35) = data5
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movaps xmm2, xmm7
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movaps xmm3, xmm4
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addps xmm7, xmm1 ; xmm7 = data3 + data4 = tmp3
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addps xmm4, xmm6 ; xmm4 = data2 + data5 = tmp2
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subps xmm2, xmm1 ; xmm2 = data3 - data4 = tmp4
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subps xmm3, xmm6 ; xmm3 = data2 - data5 = tmp5
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; -- Even part
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movaps xmm1, xmm5
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movaps xmm6, xmm0
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subps xmm5, xmm7 ; xmm5 = tmp13
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subps xmm0, xmm4 ; xmm0 = tmp12
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addps xmm1, xmm7 ; xmm1 = tmp10
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addps xmm6, xmm4 ; xmm6 = tmp11
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addps xmm0, xmm5
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mulps xmm0, [rel PD_0_707] ; xmm0 = z1
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movaps xmm7, xmm1
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movaps xmm4, xmm5
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subps xmm1, xmm6 ; xmm1 = data4
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subps xmm5, xmm0 ; xmm5 = data6
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addps xmm7, xmm6 ; xmm7 = data0
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addps xmm4, xmm0 ; xmm4 = data2
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movaps XMMWORD [XMMBLOCK(0, 1, rdx, SIZEOF_FAST_FLOAT)], xmm1
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movaps XMMWORD [XMMBLOCK(2, 1, rdx, SIZEOF_FAST_FLOAT)], xmm5
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movaps XMMWORD [XMMBLOCK(0, 0, rdx, SIZEOF_FAST_FLOAT)], xmm7
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movaps XMMWORD [XMMBLOCK(2, 0, rdx, SIZEOF_FAST_FLOAT)], xmm4
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; -- Odd part
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movaps xmm6, XMMWORD [wk(0)] ; xmm6 = tmp6
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movaps xmm0, XMMWORD [wk(1)] ; xmm0 = tmp7
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addps xmm2, xmm3 ; xmm2 = tmp10
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addps xmm3, xmm6 ; xmm3 = tmp11
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addps xmm6, xmm0 ; xmm6 = tmp12, xmm0 = tmp7
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mulps xmm3, [rel PD_0_707] ; xmm3 = z3
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movaps xmm1, xmm2 ; xmm1 = tmp10
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subps xmm2, xmm6
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mulps xmm2, [rel PD_0_382] ; xmm2 = z5
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mulps xmm1, [rel PD_0_541] ; xmm1 = MULTIPLY(tmp10, FIX_0_541196)
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mulps xmm6, [rel PD_1_306] ; xmm6 = MULTIPLY(tmp12, FIX_1_306562)
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addps xmm1, xmm2 ; xmm1 = z2
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addps xmm6, xmm2 ; xmm6 = z4
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movaps xmm5, xmm0
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subps xmm0, xmm3 ; xmm0 = z13
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addps xmm5, xmm3 ; xmm5 = z11
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movaps xmm7, xmm0
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movaps xmm4, xmm5
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subps xmm0, xmm1 ; xmm0 = data3
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subps xmm5, xmm6 ; xmm5 = data7
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addps xmm7, xmm1 ; xmm7 = data5
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addps xmm4, xmm6 ; xmm4 = data1
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movaps XMMWORD [XMMBLOCK(3, 0, rdx, SIZEOF_FAST_FLOAT)], xmm0
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movaps XMMWORD [XMMBLOCK(3, 1, rdx, SIZEOF_FAST_FLOAT)], xmm5
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movaps XMMWORD [XMMBLOCK(1, 1, rdx, SIZEOF_FAST_FLOAT)], xmm7
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movaps XMMWORD [XMMBLOCK(1, 0, rdx, SIZEOF_FAST_FLOAT)], xmm4
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add rdx, 4 * DCTSIZE * SIZEOF_FAST_FLOAT
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dec rcx
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jnz near .rowloop
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; ---- Pass 2: process columns.
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mov rdx, r10 ; (FAST_FLOAT *)
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mov rcx, DCTSIZE / 4
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.columnloop:
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movaps xmm0, XMMWORD [XMMBLOCK(2, 0, rdx, SIZEOF_FAST_FLOAT)]
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movaps xmm1, XMMWORD [XMMBLOCK(3, 0, rdx, SIZEOF_FAST_FLOAT)]
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movaps xmm2, XMMWORD [XMMBLOCK(6, 0, rdx, SIZEOF_FAST_FLOAT)]
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movaps xmm3, XMMWORD [XMMBLOCK(7, 0, rdx, SIZEOF_FAST_FLOAT)]
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; xmm0 = (02 12 22 32)
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; xmm2 = (42 52 62 72)
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; xmm1 = (03 13 23 33)
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; xmm3 = (43 53 63 73)
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movaps xmm4, xmm0 ; transpose coefficients(phase 1)
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unpcklps xmm0, xmm1 ; xmm0 = (02 03 12 13)
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unpckhps xmm4, xmm1 ; xmm4 = (22 23 32 33)
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movaps xmm5, xmm2 ; transpose coefficients(phase 1)
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unpcklps xmm2, xmm3 ; xmm2 = (42 43 52 53)
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unpckhps xmm5, xmm3 ; xmm5 = (62 63 72 73)
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movaps xmm6, XMMWORD [XMMBLOCK(0, 0, rdx, SIZEOF_FAST_FLOAT)]
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movaps xmm7, XMMWORD [XMMBLOCK(1, 0, rdx, SIZEOF_FAST_FLOAT)]
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movaps xmm1, XMMWORD [XMMBLOCK(4, 0, rdx, SIZEOF_FAST_FLOAT)]
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movaps xmm3, XMMWORD [XMMBLOCK(5, 0, rdx, SIZEOF_FAST_FLOAT)]
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; xmm6 = (00 10 20 30)
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; xmm1 = (40 50 60 70)
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; xmm7 = (01 11 21 31)
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; xmm3 = (41 51 61 71)
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movaps XMMWORD [wk(0)], xmm4 ; wk(0) = (22 23 32 33)
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movaps XMMWORD [wk(1)], xmm2 ; wk(1) = (42 43 52 53)
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movaps xmm4, xmm6 ; transpose coefficients(phase 1)
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unpcklps xmm6, xmm7 ; xmm6 = (00 01 10 11)
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unpckhps xmm4, xmm7 ; xmm4 = (20 21 30 31)
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movaps xmm2, xmm1 ; transpose coefficients(phase 1)
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unpcklps xmm1, xmm3 ; xmm1 = (40 41 50 51)
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unpckhps xmm2, xmm3 ; xmm2 = (60 61 70 71)
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movaps xmm7, xmm6 ; transpose coefficients(phase 2)
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unpcklps2 xmm6, xmm0 ; xmm6 = (00 01 02 03) = data0
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unpckhps2 xmm7, xmm0 ; xmm7 = (10 11 12 13) = data1
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movaps xmm3, xmm2 ; transpose coefficients(phase 2)
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unpcklps2 xmm2, xmm5 ; xmm2 = (60 61 62 63) = data6
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unpckhps2 xmm3, xmm5 ; xmm3 = (70 71 72 73) = data7
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movaps xmm0, xmm7
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movaps xmm5, xmm6
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subps xmm7, xmm2 ; xmm7 = data1 - data6 = tmp6
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subps xmm6, xmm3 ; xmm6 = data0 - data7 = tmp7
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addps xmm0, xmm2 ; xmm0 = data1 + data6 = tmp1
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addps xmm5, xmm3 ; xmm5 = data0 + data7 = tmp0
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movaps xmm2, XMMWORD [wk(0)] ; xmm2 = (22 23 32 33)
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movaps xmm3, XMMWORD [wk(1)] ; xmm3 = (42 43 52 53)
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movaps XMMWORD [wk(0)], xmm7 ; wk(0) = tmp6
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movaps XMMWORD [wk(1)], xmm6 ; wk(1) = tmp7
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movaps xmm7, xmm4 ; transpose coefficients(phase 2)
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unpcklps2 xmm4, xmm2 ; xmm4 = (20 21 22 23) = data2
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unpckhps2 xmm7, xmm2 ; xmm7 = (30 31 32 33) = data3
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movaps xmm6, xmm1 ; transpose coefficients(phase 2)
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unpcklps2 xmm1, xmm3 ; xmm1 = (40 41 42 43) = data4
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unpckhps2 xmm6, xmm3 ; xmm6 = (50 51 52 53) = data5
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movaps xmm2, xmm7
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movaps xmm3, xmm4
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addps xmm7, xmm1 ; xmm7 = data3 + data4 = tmp3
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addps xmm4, xmm6 ; xmm4 = data2 + data5 = tmp2
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subps xmm2, xmm1 ; xmm2 = data3 - data4 = tmp4
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subps xmm3, xmm6 ; xmm3 = data2 - data5 = tmp5
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; -- Even part
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movaps xmm1, xmm5
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movaps xmm6, xmm0
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subps xmm5, xmm7 ; xmm5 = tmp13
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subps xmm0, xmm4 ; xmm0 = tmp12
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addps xmm1, xmm7 ; xmm1 = tmp10
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addps xmm6, xmm4 ; xmm6 = tmp11
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addps xmm0, xmm5
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mulps xmm0, [rel PD_0_707] ; xmm0 = z1
|
||
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|
movaps xmm7, xmm1
|
||
|
|
movaps xmm4, xmm5
|
||
|
|
subps xmm1, xmm6 ; xmm1 = data4
|
||
|
|
subps xmm5, xmm0 ; xmm5 = data6
|
||
|
|
addps xmm7, xmm6 ; xmm7 = data0
|
||
|
|
addps xmm4, xmm0 ; xmm4 = data2
|
||
|
|
|
||
|
|
movaps XMMWORD [XMMBLOCK(4, 0, rdx, SIZEOF_FAST_FLOAT)], xmm1
|
||
|
|
movaps XMMWORD [XMMBLOCK(6, 0, rdx, SIZEOF_FAST_FLOAT)], xmm5
|
||
|
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movaps XMMWORD [XMMBLOCK(0, 0, rdx, SIZEOF_FAST_FLOAT)], xmm7
|
||
|
|
movaps XMMWORD [XMMBLOCK(2, 0, rdx, SIZEOF_FAST_FLOAT)], xmm4
|
||
|
|
|
||
|
|
; -- Odd part
|
||
|
|
|
||
|
|
movaps xmm6, XMMWORD [wk(0)] ; xmm6 = tmp6
|
||
|
|
movaps xmm0, XMMWORD [wk(1)] ; xmm0 = tmp7
|
||
|
|
|
||
|
|
addps xmm2, xmm3 ; xmm2 = tmp10
|
||
|
|
addps xmm3, xmm6 ; xmm3 = tmp11
|
||
|
|
addps xmm6, xmm0 ; xmm6 = tmp12, xmm0 = tmp7
|
||
|
|
|
||
|
|
mulps xmm3, [rel PD_0_707] ; xmm3 = z3
|
||
|
|
|
||
|
|
movaps xmm1, xmm2 ; xmm1 = tmp10
|
||
|
|
subps xmm2, xmm6
|
||
|
|
mulps xmm2, [rel PD_0_382] ; xmm2 = z5
|
||
|
|
mulps xmm1, [rel PD_0_541] ; xmm1 = MULTIPLY(tmp10, FIX_0_541196)
|
||
|
|
mulps xmm6, [rel PD_1_306] ; xmm6 = MULTIPLY(tmp12, FIX_1_306562)
|
||
|
|
addps xmm1, xmm2 ; xmm1 = z2
|
||
|
|
addps xmm6, xmm2 ; xmm6 = z4
|
||
|
|
|
||
|
|
movaps xmm5, xmm0
|
||
|
|
subps xmm0, xmm3 ; xmm0 = z13
|
||
|
|
addps xmm5, xmm3 ; xmm5 = z11
|
||
|
|
|
||
|
|
movaps xmm7, xmm0
|
||
|
|
movaps xmm4, xmm5
|
||
|
|
subps xmm0, xmm1 ; xmm0 = data3
|
||
|
|
subps xmm5, xmm6 ; xmm5 = data7
|
||
|
|
addps xmm7, xmm1 ; xmm7 = data5
|
||
|
|
addps xmm4, xmm6 ; xmm4 = data1
|
||
|
|
|
||
|
|
movaps XMMWORD [XMMBLOCK(3, 0, rdx, SIZEOF_FAST_FLOAT)], xmm0
|
||
|
|
movaps XMMWORD [XMMBLOCK(7, 0, rdx, SIZEOF_FAST_FLOAT)], xmm5
|
||
|
|
movaps XMMWORD [XMMBLOCK(5, 0, rdx, SIZEOF_FAST_FLOAT)], xmm7
|
||
|
|
movaps XMMWORD [XMMBLOCK(1, 0, rdx, SIZEOF_FAST_FLOAT)], xmm4
|
||
|
|
|
||
|
|
add rdx, byte 4 * SIZEOF_FAST_FLOAT
|
||
|
|
dec rcx
|
||
|
|
jnz near .columnloop
|
||
|
|
|
||
|
|
UNCOLLECT_ARGS 1
|
||
|
|
lea rsp, [rbp - 8]
|
||
|
|
pop r15
|
||
|
|
pop rbp
|
||
|
|
ret
|
||
|
|
|
||
|
|
; For some reason, the OS X linker does not honor the request to align the
|
||
|
|
; segment unless we do this.
|
||
|
|
align 32
|