412 lines
14 KiB
NASM
412 lines
14 KiB
NASM
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;
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; Grayscale colorspace conversion (64-bit SSE2)
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;
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; Copyright (C) 2011, 2016, 2024-2025, D. R. Commander.
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; Copyright (C) 2018, Matthias Räncker.
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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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%include "jcolsamp.inc"
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; --------------------------------------------------------------------------
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;
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; Convert some rows of samples to the JPEG colorspace.
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;
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; GLOBAL(void)
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; jsimd_rgb_gray_convert_sse2(JDIMENSION img_width, JSAMPARRAY input_buf,
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; JSAMPIMAGE output_buf, JDIMENSION output_row,
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; int num_rows)
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;
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; r10d = JDIMENSION img_width
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; r11 = JSAMPARRAY input_buf
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; r12 = JSAMPIMAGE output_buf
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; r13d = JDIMENSION output_row
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; r14d = int num_rows
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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_rgb_gray_convert_sse2)
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EXTN(jsimd_rgb_gray_convert_sse2):
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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 5
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push rbx
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mov ecx, r10d
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test rcx, rcx
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jz near .return
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push rcx
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mov rsi, r12
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mov ecx, r13d
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mov rdip, JSAMPARRAY [rsi + 0 * SIZEOF_JSAMPARRAY]
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lea rdi, [rdi + rcx * SIZEOF_JSAMPROW]
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pop rcx
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mov rsi, r11
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mov eax, r14d
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test rax, rax
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jle near .return
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.rowloop:
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push rdi
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push rsi
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push rcx ; col
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mov rsip, JSAMPROW [rsi] ; inptr
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mov rdip, JSAMPROW [rdi] ; outptr0
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cmp rcx, byte SIZEOF_XMMWORD
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jae near .columnloop
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%if RGB_PIXELSIZE == 3 ; ---------------
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.column_ld1:
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push rax
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push rdx
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lea rcx, [rcx + rcx * 2] ; imul ecx, RGB_PIXELSIZE
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test cl, SIZEOF_BYTE
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jz short .column_ld2
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sub rcx, byte SIZEOF_BYTE
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movzx rax, byte [rsi + rcx]
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.column_ld2:
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test cl, SIZEOF_WORD
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jz short .column_ld4
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sub rcx, byte SIZEOF_WORD
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movzx rdx, word [rsi + rcx]
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shl rax, WORD_BIT
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or rax, rdx
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.column_ld4:
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movd xmmA, eax
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pop rdx
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pop rax
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test cl, SIZEOF_DWORD
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jz short .column_ld8
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sub rcx, byte SIZEOF_DWORD
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movd xmmF, XMM_DWORD [rsi + rcx]
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pslldq xmmA, SIZEOF_DWORD
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por xmmA, xmmF
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.column_ld8:
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test cl, SIZEOF_MMWORD
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jz short .column_ld16
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sub rcx, byte SIZEOF_MMWORD
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movq xmmB, XMM_MMWORD [rsi + rcx]
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pslldq xmmA, SIZEOF_MMWORD
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por xmmA, xmmB
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.column_ld16:
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test cl, SIZEOF_XMMWORD
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jz short .column_ld32
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movdqa xmmF, xmmA
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movdqu xmmA, XMMWORD [rsi + 0 * SIZEOF_XMMWORD]
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mov rcx, SIZEOF_XMMWORD
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jmp short .rgb_gray_cnv
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.column_ld32:
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test cl, 2 * SIZEOF_XMMWORD
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mov rcx, SIZEOF_XMMWORD
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jz short .rgb_gray_cnv
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movdqa xmmB, xmmA
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movdqu xmmA, XMMWORD [rsi + 0 * SIZEOF_XMMWORD]
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movdqu xmmF, XMMWORD [rsi + 1 * SIZEOF_XMMWORD]
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jmp short .rgb_gray_cnv
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.columnloop:
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movdqu xmmA, XMMWORD [rsi + 0 * SIZEOF_XMMWORD]
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movdqu xmmF, XMMWORD [rsi + 1 * SIZEOF_XMMWORD]
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movdqu xmmB, XMMWORD [rsi + 2 * SIZEOF_XMMWORD]
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.rgb_gray_cnv:
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; NOTE: The values of RGB_RED, RGB_GREEN, and RGB_BLUE determine the
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; mapping of components A, B, and C to red, green, and blue.
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;
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; xmmA = (A0 B0 C0 A1 B1 C1 A2 B2 C2 A3 B3 C3 A4 B4 C4 A5)
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; xmmF = (B5 C5 A6 B6 C6 A7 B7 C7 A8 B8 C8 A9 B9 C9 Aa Ba)
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; xmmB = (Ca Ab Bb Cb Ac Bc Cc Ad Bd Cd Ae Be Ce Af Bf Cf)
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movdqa xmmG, xmmA
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pslldq xmmA, 8
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; xmmA = (-- -- -- -- -- -- -- -- A0 B0 C0 A1 B1 C1 A2 B2)
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psrldq xmmG, 8
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; xmmG = (C2 A3 B3 C3 A4 B4 C4 A5 -- -- -- -- -- -- -- --)
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punpckhbw xmmA, xmmF
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; xmmA = (A0 A8 B0 B8 C0 C8 A1 A9 B1 B9 C1 C9 A2 Aa B2 Ba)
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pslldq xmmF, 8
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; xmmF = (-- -- -- -- -- -- -- -- B5 C5 A6 B6 C6 A7 B7 C7)
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punpcklbw xmmG, xmmB
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; xmmG = (C2 Ca A3 Ab B3 Bb C3 Cb A4 Ac B4 Bc C4 Cc A5 Ad)
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punpckhbw xmmF, xmmB
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; xmmF = (B5 Bd C5 Cd A6 Ae B6 Be C6 Ce A7 Af B7 Bf C7 Cf)
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movdqa xmmD, xmmA
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pslldq xmmA, 8
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; xmmA = (-- -- -- -- -- -- -- -- A0 A8 B0 B8 C0 C8 A1 A9)
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psrldq xmmD, 8
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; xmmD = (B1 B9 C1 C9 A2 Aa B2 Ba -- -- -- -- -- -- -- --)
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punpckhbw xmmA, xmmG
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; xmmA = (A0 A4 A8 Ac B0 B4 B8 Bc C0 C4 C8 Cc A1 A5 A9 Ad)
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pslldq xmmG, 8
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; xmmG = (-- -- -- -- -- -- -- -- C2 Ca A3 Ab B3 Bb C3 Cb)
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punpcklbw xmmD, xmmF
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; xmmD = (B1 B5 B9 Bd C1 C5 C9 Cd A2 A6 Aa Ae B2 B6 Ba Be)
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punpckhbw xmmG, xmmF
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; xmmG = (C2 C6 Ca Ce A3 A7 Ab Af B3 B7 Bb Bf C3 C7 Cb Cf)
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movdqa xmmE, xmmA
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pslldq xmmA, 8
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; xmmA = (-- -- -- -- -- -- -- -- A0 A4 A8 Ac B0 B4 B8 Bc)
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psrldq xmmE, 8
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; xmmE = (C0 C4 C8 Cc A1 A5 A9 Ad -- -- -- -- -- -- -- --)
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punpckhbw xmmA, xmmD
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; xmmA = (A0 A2 A4 A6 A8 Aa Ac Ae B0 B2 B4 B6 B8 Ba Bc Be)
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pslldq xmmD, 8
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; xmmD = (-- -- -- -- -- -- -- -- B1 B5 B9 Bd C1 C5 C9 Cd)
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punpcklbw xmmE, xmmG
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; xmmE = (C0 C2 C4 C6 C8 Ca Cc Ce A1 A3 A5 A7 A9 Ab Ad Af)
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punpckhbw xmmD, xmmG
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; xmmD = (B1 B3 B5 B7 B9 Bb Bd Bf C1 C3 C5 C7 C9 Cb Cd Cf)
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pxor xmmH, xmmH
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movdqa xmmC, xmmA
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punpcklbw xmmA, xmmH ; xmmA = (A0 A2 A4 A6 A8 Aa Ac Ae) = AE
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punpckhbw xmmC, xmmH ; xmmC = (B0 B2 B4 B6 B8 Ba Bc Be) = BE
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movdqa xmmB, xmmE
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punpcklbw xmmE, xmmH ; xmmE = (C0 C2 C4 C6 C8 Ca Cc Ce) = CE
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punpckhbw xmmB, xmmH ; xmmB = (A1 A3 A5 A7 A9 Ab Ad Af) = AO
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movdqa xmmF, xmmD
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punpcklbw xmmD, xmmH ; xmmD = (B1 B3 B5 B7 B9 Bb Bd Bf) = BO
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punpckhbw xmmF, xmmH ; xmmF = (C1 C3 C5 C7 C9 Cb Cd Cf) = CO
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%else ; RGB_PIXELSIZE == 4 ; -----------
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.column_ld1:
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test cl, SIZEOF_XMMWORD / 16
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jz short .column_ld2
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sub rcx, byte SIZEOF_XMMWORD / 16
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movd xmmA, XMM_DWORD [rsi + rcx * RGB_PIXELSIZE]
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.column_ld2:
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test cl, SIZEOF_XMMWORD / 8
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jz short .column_ld4
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sub rcx, byte SIZEOF_XMMWORD / 8
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movq xmmE, XMM_MMWORD [rsi + rcx * RGB_PIXELSIZE]
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pslldq xmmA, SIZEOF_MMWORD
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por xmmA, xmmE
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.column_ld4:
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test cl, SIZEOF_XMMWORD / 4
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jz short .column_ld8
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sub rcx, byte SIZEOF_XMMWORD / 4
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movdqa xmmE, xmmA
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movdqu xmmA, XMMWORD [rsi + rcx * RGB_PIXELSIZE]
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.column_ld8:
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test cl, SIZEOF_XMMWORD / 2
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mov rcx, SIZEOF_XMMWORD
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jz short .rgb_gray_cnv
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movdqa xmmF, xmmA
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movdqa xmmH, xmmE
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movdqu xmmA, XMMWORD [rsi + 0 * SIZEOF_XMMWORD]
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movdqu xmmE, XMMWORD [rsi + 1 * SIZEOF_XMMWORD]
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jmp short .rgb_gray_cnv
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.columnloop:
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movdqu xmmA, XMMWORD [rsi + 0 * SIZEOF_XMMWORD]
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movdqu xmmE, XMMWORD [rsi + 1 * SIZEOF_XMMWORD]
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movdqu xmmF, XMMWORD [rsi + 2 * SIZEOF_XMMWORD]
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movdqu xmmH, XMMWORD [rsi + 3 * SIZEOF_XMMWORD]
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.rgb_gray_cnv:
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; NOTE: The values of RGB_RED, RGB_GREEN, and RGB_BLUE determine the
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; mapping of components A, B, C, and D to red, green, and blue.
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;
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; xmmA = (A0 B0 C0 D0 A1 B1 C1 D1 A2 B2 C2 D2 A3 B3 C3 D3)
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; xmmE = (A4 B4 C4 D4 A5 B5 C5 D5 A6 B6 C6 D6 A7 B7 C7 D7)
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; xmmF = (A8 B8 C8 D8 A9 B9 C9 D9 Aa Ba Ca Da Ab Bb Cb Db)
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; xmmH = (Ac Bc Cc Dc Ad Bd Cd Dd Ae Be Ce De Af Bf Cf Df)
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movdqa xmmD, xmmA
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punpcklbw xmmA, xmmE
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; xmmA = (A0 A4 B0 B4 C0 C4 D0 D4 A1 A5 B1 B5 C1 C5 D1 D5)
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punpckhbw xmmD, xmmE
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; xmmD = (A2 A6 B2 B6 C2 C6 D2 D6 A3 A7 B3 B7 C3 C7 D3 D7)
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movdqa xmmC, xmmF
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punpcklbw xmmF, xmmH
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; xmmF = (A8 Ac B8 Bc C8 Cc D8 Dc A9 Ad B9 Bd C9 Cd D9 Dd)
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punpckhbw xmmC, xmmH
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; xmmC = (Aa Ae Ba Be Ca Ce Da De Ab Af Bb Bf Cb Cf Db Df)
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movdqa xmmB, xmmA
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punpcklwd xmmA, xmmF
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; xmmA = (A0 A4 A8 Ac B0 B4 B8 Bc C0 C4 C8 Cc D0 D4 D8 Dc)
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punpckhwd xmmB, xmmF
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; xmmB = (A1 A5 A9 Ad B1 B5 B9 Bd C1 C5 C9 Cd D1 D5 D9 Dd)
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movdqa xmmG, xmmD
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punpcklwd xmmD, xmmC
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; xmmD = (A2 A6 Aa Ae B2 B6 Ba Be C2 C6 Ca Ce D2 D6 Da De)
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punpckhwd xmmG, xmmC
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; xmmG = (A3 A7 Ab Af B3 B7 Bb Bf C3 C7 Cb Cf D3 D7 Db Df)
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movdqa xmmE, xmmA
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punpcklbw xmmA, xmmD
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; xmmA = (A0 A2 A4 A6 A8 Aa Ac Ae B0 B2 B4 B6 B8 Ba Bc Be)
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punpckhbw xmmE, xmmD
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; xmmE = (C0 C2 C4 C6 C8 Ca Cc Ce D0 D2 D4 D6 D8 Da Dc De)
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movdqa xmmH, xmmB
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punpcklbw xmmB, xmmG
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; xmmB = (A1 A3 A5 A7 A9 Ab Ad Af B1 B3 B5 B7 B9 Bb Bd Bf)
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punpckhbw xmmH, xmmG
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; xmmH = (C1 C3 C5 C7 C9 Cb Cd Cf D1 D3 D5 D7 D9 Db Dd Df)
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pxor xmmF, xmmF
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movdqa xmmC, xmmA
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punpcklbw xmmA, xmmF ; xmmA = (A0 A2 A4 A6 A8 Aa Ac Ae) = AE
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punpckhbw xmmC, xmmF ; xmmC = (B0 B2 B4 B6 B8 Ba Bc Be) = BE
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movdqa xmmD, xmmB
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punpcklbw xmmB, xmmF ; xmmB = (A1 A3 A5 A7 A9 Ab Ad Af) = AO
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punpckhbw xmmD, xmmF ; xmmD = (B1 B3 B5 B7 B9 Bb Bd Bf) = BO
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movdqa xmmG, xmmE
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punpcklbw xmmE, xmmF ; xmmE = (C0 C2 C4 C6 C8 Ca Cc Ce) = CE
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punpckhbw xmmG, xmmF ; xmmG = (D0 D2 D4 D6 D8 Da Dc De) = DE
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punpcklbw xmmF, xmmH
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punpckhbw xmmH, xmmH
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psrlw xmmF, BYTE_BIT ; xmmF = (C1 C3 C5 C7 C9 Cb Cd Cf) = CO
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psrlw xmmH, BYTE_BIT ; xmmH = (D1 D3 D5 D7 D9 Db Dd Df) = DO
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%endif ; RGB_PIXELSIZE ; ---------------
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; xmm0 = (R0 R2 R4 R6 R8 Ra Rc Re) = RE
|
||
|
|
; xmm2 = (G0 G2 G4 G6 G8 Ga Gc Ge) = GE
|
||
|
|
; xmm4 = (B0 B2 B4 B6 B8 Ba Bc Be) = BE
|
||
|
|
; xmm1 = (R1 R3 R5 R7 R9 Rb Rd Rf) = RO
|
||
|
|
; xmm3 = (G1 G3 G5 G7 G9 Gb Gd Gf) = GO
|
||
|
|
; xmm5 = (B1 B3 B5 B7 B9 Bb Bd Bf) = BO
|
||
|
|
;
|
||
|
|
; (Original)
|
||
|
|
; Y = 0.29900 * R + 0.58700 * G + 0.11400 * B
|
||
|
|
;
|
||
|
|
; (This implementation)
|
||
|
|
; Y = 0.29900 * R + 0.33700 * G + 0.11400 * B + 0.25000 * G
|
||
|
|
|
||
|
|
movdqa xmm6, xmm1
|
||
|
|
punpcklwd xmm1, xmm3
|
||
|
|
punpckhwd xmm6, xmm3
|
||
|
|
pmaddwd xmm1, [rel PW_F0299_F0337]
|
||
|
|
; xmm1 = ROL * FIX(0.299) + GOL * FIX(0.337)
|
||
|
|
pmaddwd xmm6, [rel PW_F0299_F0337]
|
||
|
|
; xmm6 = ROH * FIX(0.299) + GOH * FIX(0.337)
|
||
|
|
|
||
|
|
movdqa xmm7, xmm6
|
||
|
|
; xmm7 = ROH * FIX(0.299) + GOH * FIX(0.337)
|
||
|
|
|
||
|
|
movdqa xmm6, xmm0
|
||
|
|
punpcklwd xmm0, xmm2
|
||
|
|
punpckhwd xmm6, xmm2
|
||
|
|
pmaddwd xmm0, [rel PW_F0299_F0337]
|
||
|
|
; xmm0 = REL * FIX(0.299) + GEL * FIX(0.337)
|
||
|
|
pmaddwd xmm6, [rel PW_F0299_F0337]
|
||
|
|
; xmm6 = REH * FIX(0.299) + GEH * FIX(0.337)
|
||
|
|
|
||
|
|
movdqa XMMWORD [wk(0)], xmm0
|
||
|
|
; wk(0) = REL * FIX(0.299) + GEL * FIX(0.337)
|
||
|
|
movdqa XMMWORD [wk(1)], xmm6
|
||
|
|
; wk(1) = REH * FIX(0.299) + GEH * FIX(0.337)
|
||
|
|
|
||
|
|
movdqa xmm0, xmm5 ; xmm0 = BO
|
||
|
|
movdqa xmm6, xmm4 ; xmm6 = BE
|
||
|
|
|
||
|
|
movdqa xmm4, xmm0
|
||
|
|
punpcklwd xmm0, xmm3
|
||
|
|
punpckhwd xmm4, xmm3
|
||
|
|
pmaddwd xmm0, [rel PW_F0114_F0250]
|
||
|
|
; xmm0 = BOL * FIX(0.114) + GOL * FIX(0.250)
|
||
|
|
pmaddwd xmm4, [rel PW_F0114_F0250]
|
||
|
|
; xmm4 = BOH * FIX(0.114) + GOH * FIX(0.250)
|
||
|
|
|
||
|
|
movdqa xmm3, [rel PD_ONEHALF] ; xmm3 = [PD_ONEHALF]
|
||
|
|
|
||
|
|
paddd xmm0, xmm1
|
||
|
|
paddd xmm4, xmm7
|
||
|
|
paddd xmm0, xmm3
|
||
|
|
paddd xmm4, xmm3
|
||
|
|
psrld xmm0, SCALEBITS ; xmm0 = YOL
|
||
|
|
psrld xmm4, SCALEBITS ; xmm4 = YOH
|
||
|
|
packssdw xmm0, xmm4 ; xmm0 = YO
|
||
|
|
|
||
|
|
movdqa xmm4, xmm6
|
||
|
|
punpcklwd xmm6, xmm2
|
||
|
|
punpckhwd xmm4, xmm2
|
||
|
|
pmaddwd xmm6, [rel PW_F0114_F0250]
|
||
|
|
; xmm6 = BEL * FIX(0.114) + GEL * FIX(0.250)
|
||
|
|
pmaddwd xmm4, [rel PW_F0114_F0250]
|
||
|
|
; xmm4 = BEH * FIX(0.114) + GEH * FIX(0.250)
|
||
|
|
|
||
|
|
movdqa xmm2, [rel PD_ONEHALF] ; xmm2 = [PD_ONEHALF]
|
||
|
|
|
||
|
|
paddd xmm6, XMMWORD [wk(0)]
|
||
|
|
paddd xmm4, XMMWORD [wk(1)]
|
||
|
|
paddd xmm6, xmm2
|
||
|
|
paddd xmm4, xmm2
|
||
|
|
psrld xmm6, SCALEBITS ; xmm6 = YEL
|
||
|
|
psrld xmm4, SCALEBITS ; xmm4 = YEH
|
||
|
|
packssdw xmm6, xmm4 ; xmm6 = YE
|
||
|
|
|
||
|
|
psllw xmm0, BYTE_BIT
|
||
|
|
por xmm6, xmm0 ; xmm6 = Y
|
||
|
|
movdqa XMMWORD [rdi], xmm6 ; Save Y
|
||
|
|
|
||
|
|
sub rcx, byte SIZEOF_XMMWORD
|
||
|
|
add rsi, byte RGB_PIXELSIZE * SIZEOF_XMMWORD ; inptr
|
||
|
|
add rdi, byte SIZEOF_XMMWORD ; outptr0
|
||
|
|
cmp rcx, byte SIZEOF_XMMWORD
|
||
|
|
jae near .columnloop
|
||
|
|
test rcx, rcx
|
||
|
|
jnz near .column_ld1
|
||
|
|
|
||
|
|
pop rcx ; col
|
||
|
|
pop rsi
|
||
|
|
pop rdi
|
||
|
|
|
||
|
|
add rsi, byte SIZEOF_JSAMPROW ; input_buf
|
||
|
|
add rdi, byte SIZEOF_JSAMPROW
|
||
|
|
dec rax ; num_rows
|
||
|
|
jg near .rowloop
|
||
|
|
|
||
|
|
.return:
|
||
|
|
pop rbx
|
||
|
|
UNCOLLECT_ARGS 5
|
||
|
|
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
|