| ; |
| ; jcgryext.asm - grayscale colorspace conversion (64-bit AVX2) |
| ; |
| ; Copyright (C) 2011, 2016, D. R. Commander. |
| ; Copyright (C) 2015, Intel Corporation. |
| ; Copyright (C) 2018, Matthias Rรคncker. |
| ; |
| ; Based on the x86 SIMD extension for IJG JPEG library |
| ; Copyright (C) 1999-2006, MIYASAKA Masaru. |
| ; For conditions of distribution and use, see copyright notice in jsimdext.inc |
| ; |
| ; This file should be assembled with NASM (Netwide Assembler), |
| ; can *not* be assembled with Microsoft's MASM or any compatible |
| ; assembler (including Borland's Turbo Assembler). |
| ; NASM is available from http://nasm.sourceforge.net/ or |
| ; http://sourceforge.net/project/showfiles.php?group_id=6208 |
| |
| %include "jcolsamp.inc" |
| |
| ; -------------------------------------------------------------------------- |
| ; |
| ; Convert some rows of samples to the output colorspace. |
| ; |
| ; GLOBAL(void) |
| ; jsimd_rgb_gray_convert_avx2(JDIMENSION img_width, JSAMPARRAY input_buf, |
| ; JSAMPIMAGE output_buf, JDIMENSION output_row, |
| ; int num_rows); |
| ; |
| |
| ; r10d = JDIMENSION img_width |
| ; r11 = JSAMPARRAY input_buf |
| ; r12 = JSAMPIMAGE output_buf |
| ; r13d = JDIMENSION output_row |
| ; r14d = int num_rows |
| |
| %define wk(i) rbp - (WK_NUM - (i)) * SIZEOF_YMMWORD ; ymmword wk[WK_NUM] |
| %define WK_NUM 2 |
| |
| align 32 |
| GLOBAL_FUNCTION(jsimd_rgb_gray_convert_avx2) |
| |
| EXTN(jsimd_rgb_gray_convert_avx2): |
| push rbp |
| mov rax, rsp ; rax = original rbp |
| sub rsp, byte 4 |
| and rsp, byte (-SIZEOF_YMMWORD) ; align to 256 bits |
| mov [rsp], rax |
| mov rbp, rsp ; rbp = aligned rbp |
| lea rsp, [wk(0)] |
| collect_args 5 |
| push rbx |
| |
| mov ecx, r10d |
| test rcx, rcx |
| jz near .return |
| |
| push rcx |
| |
| mov rsi, r12 |
| mov ecx, r13d |
| mov rdip, JSAMPARRAY [rsi+0*SIZEOF_JSAMPARRAY] |
| lea rdi, [rdi+rcx*SIZEOF_JSAMPROW] |
| |
| pop rcx |
| |
| mov rsi, r11 |
| mov eax, r14d |
| test rax, rax |
| jle near .return |
| .rowloop: |
| push rdi |
| push rsi |
| push rcx ; col |
| |
| mov rsip, JSAMPROW [rsi] ; inptr |
| mov rdip, JSAMPROW [rdi] ; outptr0 |
| |
| cmp rcx, byte SIZEOF_YMMWORD |
| jae near .columnloop |
| |
| %if RGB_PIXELSIZE == 3 ; --------------- |
| |
| .column_ld1: |
| push rax |
| push rdx |
| lea rcx, [rcx+rcx*2] ; imul ecx,RGB_PIXELSIZE |
| test cl, SIZEOF_BYTE |
| jz short .column_ld2 |
| sub rcx, byte SIZEOF_BYTE |
| movzx rax, byte [rsi+rcx] |
| .column_ld2: |
| test cl, SIZEOF_WORD |
| jz short .column_ld4 |
| sub rcx, byte SIZEOF_WORD |
| movzx rdx, word [rsi+rcx] |
| shl rax, WORD_BIT |
| or rax, rdx |
| .column_ld4: |
| vmovd xmmA, eax |
| pop rdx |
| pop rax |
| test cl, SIZEOF_DWORD |
| jz short .column_ld8 |
| sub rcx, byte SIZEOF_DWORD |
| vmovd xmmF, XMM_DWORD [rsi+rcx] |
| vpslldq xmmA, xmmA, SIZEOF_DWORD |
| vpor xmmA, xmmA, xmmF |
| .column_ld8: |
| test cl, SIZEOF_MMWORD |
| jz short .column_ld16 |
| sub rcx, byte SIZEOF_MMWORD |
| vmovq xmmB, XMM_MMWORD [rsi+rcx] |
| vpslldq xmmA, xmmA, SIZEOF_MMWORD |
| vpor xmmA, xmmA, xmmB |
| .column_ld16: |
| test cl, SIZEOF_XMMWORD |
| jz short .column_ld32 |
| sub rcx, byte SIZEOF_XMMWORD |
| vmovdqu xmmB, XMM_MMWORD [rsi+rcx] |
| vperm2i128 ymmA, ymmA, ymmA, 1 |
| vpor ymmA, ymmB |
| .column_ld32: |
| test cl, SIZEOF_YMMWORD |
| jz short .column_ld64 |
| sub rcx, byte SIZEOF_YMMWORD |
| vmovdqa ymmF, ymmA |
| vmovdqu ymmA, YMMWORD [rsi+0*SIZEOF_YMMWORD] |
| .column_ld64: |
| test cl, 2*SIZEOF_YMMWORD |
| mov rcx, SIZEOF_YMMWORD |
| jz short .rgb_gray_cnv |
| vmovdqa ymmB, ymmA |
| vmovdqu ymmA, YMMWORD [rsi+0*SIZEOF_YMMWORD] |
| vmovdqu ymmF, YMMWORD [rsi+1*SIZEOF_YMMWORD] |
| jmp short .rgb_gray_cnv |
| |
| .columnloop: |
| vmovdqu ymmA, YMMWORD [rsi+0*SIZEOF_YMMWORD] |
| vmovdqu ymmF, YMMWORD [rsi+1*SIZEOF_YMMWORD] |
| vmovdqu ymmB, YMMWORD [rsi+2*SIZEOF_YMMWORD] |
| |
| .rgb_gray_cnv: |
| ; ymmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05 |
| ; 15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A) |
| ; ymmF=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F |
| ; 0G 1G 2G 0H 1H 2H 0I 1I 2I 0J 1J 2J 0K 1K 2K 0L) |
| ; ymmB=(1L 2L 0M 1M 2M 0N 1N 2N 0O 1O 2O 0P 1P 2P 0Q 1Q |
| ; 2Q 0R 1R 2R 0S 1S 2S 0T 1T 2T 0U 1U 2U 0V 1V 2V) |
| |
| vmovdqu ymmC, ymmA |
| vinserti128 ymmA, ymmF, xmmA, 0 ; ymmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05 |
| ; 0G 1G 2G 0H 1H 2H 0I 1I 2I 0J 1J 2J 0K 1K 2K 0L) |
| vinserti128 ymmC, ymmC, xmmB, 0 ; ymmC=(1L 2L 0M 1M 2M 0N 1N 2N 0O 1O 2O 0P 1P 2P 0Q 1Q |
| ; 15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A) |
| vinserti128 ymmB, ymmB, xmmF, 0 ; ymmB=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F |
| ; 2Q 0R 1R 2R 0S 1S 2S 0T 1T 2T 0U 1U 2U 0V 1V 2V) |
| vperm2i128 ymmF, ymmC, ymmC, 1 ; ymmF=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A |
| ; 1L 2L 0M 1M 2M 0N 1N 2N 0O 1O 2O 0P 1P 2P 0Q 1Q) |
| |
| vmovdqa ymmG, ymmA |
| vpslldq ymmA, ymmA, 8 ; ymmA=(-- -- -- -- -- -- -- -- 00 10 20 01 11 21 02 12 |
| ; 22 03 13 23 04 14 24 05 0G 1G 2G 0H 1H 2H 0I 1I) |
| vpsrldq ymmG, ymmG, 8 ; ymmG=(22 03 13 23 04 14 24 05 0G 1G 2G 0H 1H 2H 0I 1I |
| ; 2I 0J 1J 2J 0K 1K 2K 0L -- -- -- -- -- -- -- --) |
| |
| vpunpckhbw ymmA, ymmA, ymmF ; ymmA=(00 08 10 18 20 28 01 09 11 19 21 29 02 0A 12 1A |
| ; 0G 0O 1G 1O 2G 2O 0H 0P 1H 1P 2H 2P 0I 0Q 1I 1Q) |
| vpslldq ymmF, ymmF, 8 ; ymmF=(-- -- -- -- -- -- -- -- 15 25 06 16 26 07 17 27 |
| ; 08 18 28 09 19 29 0A 1A 1L 2L 0M 1M 2M 0N 1N 2N) |
| |
| vpunpcklbw ymmG, ymmG, ymmB ; ymmG=(22 2A 03 0B 13 1B 23 2B 04 0C 14 1C 24 2C 05 0D |
| ; 2I 2Q 0J 0R 1J 1R 2J 2R 0K 0S 1K 1S 2K 2S 0L 0T) |
| vpunpckhbw ymmF, ymmF, ymmB ; ymmF=(15 1D 25 2D 06 0E 16 1E 26 2E 07 0F 17 1F 27 2F |
| ; 1L 1T 2L 2T 0M 0U 1M 1U 2M 2U 0N 0V 1N 1V 2N 2V) |
| |
| vmovdqa ymmD, ymmA |
| vpslldq ymmA, ymmA, 8 ; ymmA=(-- -- -- -- -- -- -- -- 00 08 10 18 20 28 01 09 |
| ; 11 19 21 29 02 0A 12 1A 0G 0O 1G 1O 2G 2O 0H 0P) |
| vpsrldq ymmD, ymmD, 8 ; ymmD=(11 19 21 29 02 0A 12 1A 0G 0O 1G 1O 2G 2O 0H 0P |
| ; 1H 1P 2H 2P 0I 0Q 1I 1Q -- -- -- -- -- -- -- --) |
| |
| vpunpckhbw ymmA, ymmA, ymmG ; ymmA=(00 04 08 0C 10 14 18 1C 20 24 28 2C 01 05 09 0D |
| ; 0G 0K 0O 0S 1G 1K 1O 1S 2G 2K 2O 2S 0H 0L 0P 0T) |
| vpslldq ymmG, ymmG, 8 ; ymmG=(-- -- -- -- -- -- -- -- 22 2A 03 0B 13 1B 23 2B |
| ; 04 0C 14 1C 24 2C 05 0D 2I 2Q 0J 0R 1J 1R 2J 2R) |
| |
| vpunpcklbw ymmD, ymmD, ymmF ; ymmD=(11 15 19 1D 21 25 29 2D 02 06 0A 0E 12 16 1A 1E |
| ; 1H 1L 1P 1T 2H 2L 2P 2T 0I 0M 0Q 0U 1I 1M 1Q 1U) |
| vpunpckhbw ymmG, ymmG, ymmF ; ymmG=(22 26 2A 2E 03 07 0B 0F 13 17 1B 1F 23 27 2B 2F |
| ; 2I 2M 2Q 2U 0J 0N 0R 0V 1J 1N 1R 1V 2J 2N 2R 2V) |
| |
| vmovdqa ymmE, ymmA |
| vpslldq ymmA, ymmA, 8 ; ymmA=(-- -- -- -- -- -- -- -- 00 04 08 0C 10 14 18 1C |
| ; 20 24 28 2C 01 05 09 0D 0G 0K 0O 0S 1G 1K 1O 1S) |
| vpsrldq ymmE, ymmE, 8 ; ymmE=(20 24 28 2C 01 05 09 0D 0G 0K 0O 0S 1G 1K 1O 1S |
| ; 2G 2K 2O 2S 0H 0L 0P 0T -- -- -- -- -- -- -- --) |
| |
| vpunpckhbw ymmA, ymmA, ymmD ; ymmA=(00 02 04 06 08 0A 0C 0E 10 12 14 16 18 1A 1C 1E |
| ; 0G 0I 0K 0M 0O 0Q 0S 0U 1G 1I 1K 1M 1O 1Q 1S 1U) |
| vpslldq ymmD, ymmD, 8 ; ymmD=(-- -- -- -- -- -- -- -- 11 15 19 1D 21 25 29 2D |
| ; 02 06 0A 0E 12 16 1A 1E 1H 1L 1P 1T 2H 2L 2P 2T) |
| |
| vpunpcklbw ymmE, ymmE, ymmG ; ymmE=(20 22 24 26 28 2A 2C 2E 01 03 05 07 09 0B 0D 0F |
| ; 2G 2I 2K 2M 2O 2Q 2S 2U 0H 0J 0L 0N 0P 0R 0T 0V) |
| vpunpckhbw ymmD, ymmD, ymmG ; ymmD=(11 13 15 17 19 1B 1D 1F 21 23 25 27 29 2B 2D 2F |
| ; 1H 1J 1L 1N 1P 1R 1T 1V 2H 2J 2L 2N 2P 2R 2T 2V) |
| |
| vpxor ymmH, ymmH, ymmH |
| |
| vmovdqa ymmC, ymmA |
| vpunpcklbw ymmA, ymmA, ymmH ; ymmA=(00 02 04 06 08 0A 0C 0E 0G 0I 0K 0M 0O 0Q 0S 0U) |
| vpunpckhbw ymmC, ymmC, ymmH ; ymmC=(10 12 14 16 18 1A 1C 1E 1G 1I 1K 1M 1O 1Q 1S 1U) |
| |
| vmovdqa ymmB, ymmE |
| vpunpcklbw ymmE, ymmE, ymmH ; ymmE=(20 22 24 26 28 2A 2C 2E 2G 2I 2K 2M 2O 2Q 2S 2U) |
| vpunpckhbw ymmB, ymmB, ymmH ; ymmB=(01 03 05 07 09 0B 0D 0F 0H 0J 0L 0N 0P 0R 0T 0V) |
| |
| vmovdqa ymmF, ymmD |
| vpunpcklbw ymmD, ymmD, ymmH ; ymmD=(11 13 15 17 19 1B 1D 1F 1H 1J 1L 1N 1P 1R 1T 1V) |
| vpunpckhbw ymmF, ymmF, ymmH ; ymmF=(21 23 25 27 29 2B 2D 2F 2H 2J 2L 2N 2P 2R 2T 2V) |
| |
| %else ; RGB_PIXELSIZE == 4 ; ----------- |
| |
| .column_ld1: |
| test cl, SIZEOF_XMMWORD/16 |
| jz short .column_ld2 |
| sub rcx, byte SIZEOF_XMMWORD/16 |
| vmovd xmmA, XMM_DWORD [rsi+rcx*RGB_PIXELSIZE] |
| .column_ld2: |
| test cl, SIZEOF_XMMWORD/8 |
| jz short .column_ld4 |
| sub rcx, byte SIZEOF_XMMWORD/8 |
| vmovq xmmF, XMM_MMWORD [rsi+rcx*RGB_PIXELSIZE] |
| vpslldq xmmA, xmmA, SIZEOF_MMWORD |
| vpor xmmA, xmmA, xmmF |
| .column_ld4: |
| test cl, SIZEOF_XMMWORD/4 |
| jz short .column_ld8 |
| sub rcx, byte SIZEOF_XMMWORD/4 |
| vmovdqa xmmF, xmmA |
| vperm2i128 ymmF, ymmF, ymmF, 1 |
| vmovdqu xmmA, XMMWORD [rsi+rcx*RGB_PIXELSIZE] |
| vpor ymmA, ymmA, ymmF |
| .column_ld8: |
| test cl, SIZEOF_XMMWORD/2 |
| jz short .column_ld16 |
| sub rcx, byte SIZEOF_XMMWORD/2 |
| vmovdqa ymmF, ymmA |
| vmovdqu ymmA, YMMWORD [rsi+rcx*RGB_PIXELSIZE] |
| .column_ld16: |
| test cl, SIZEOF_XMMWORD |
| mov rcx, SIZEOF_YMMWORD |
| jz short .rgb_gray_cnv |
| vmovdqa ymmE, ymmA |
| vmovdqa ymmH, ymmF |
| vmovdqu ymmA, YMMWORD [rsi+0*SIZEOF_YMMWORD] |
| vmovdqu ymmF, YMMWORD [rsi+1*SIZEOF_YMMWORD] |
| jmp short .rgb_gray_cnv |
| |
| .columnloop: |
| vmovdqu ymmA, YMMWORD [rsi+0*SIZEOF_YMMWORD] |
| vmovdqu ymmF, YMMWORD [rsi+1*SIZEOF_YMMWORD] |
| vmovdqu ymmE, YMMWORD [rsi+2*SIZEOF_YMMWORD] |
| vmovdqu ymmH, YMMWORD [rsi+3*SIZEOF_YMMWORD] |
| |
| .rgb_gray_cnv: |
| ; ymmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33 |
| ; 04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37) |
| ; ymmF=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B |
| ; 0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F) |
| ; ymmE=(0G 1G 2G 3G 0H 1H 2H 3H 0I 1I 2I 3I 0J 1J 2J 3J |
| ; 0K 1K 2K 3K 0L 1L 2L 3L 0M 1M 2M 3M 0N 1N 2N 3N) |
| ; ymmH=(0O 1O 2O 3O 0P 1P 2P 3P 0Q 1Q 2Q 3Q 0R 1R 2R 3R |
| ; 0S 1S 2S 3S 0T 1T 2T 3T 0U 1U 2U 3U 0V 1V 2V 3V) |
| |
| vmovdqa ymmB, ymmA |
| vinserti128 ymmA, ymmA, xmmE, 1 ; ymmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33 |
| ; 0G 1G 2G 3G 0H 1H 2H 3H 0I 1I 2I 3I 0J 1J 2J 3J) |
| vperm2i128 ymmE, ymmB, ymmE, 0x31 ; ymmE=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37 |
| ; 0K 1K 2K 3K 0L 1L 2L 3L 0M 1M 2M 3M 0N 1N 2N 3N) |
| |
| vmovdqa ymmB, ymmF |
| vinserti128 ymmF, ymmF, xmmH, 1 ; ymmF=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B |
| ; 0O 1O 2O 3O 0P 1P 2P 3P 0Q 1Q 2Q 3Q 0R 1R 2R 3R) |
| vperm2i128 ymmH, ymmB, ymmH, 0x31 ; ymmH=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F |
| ; 0S 1S 2S 3S 0T 1T 2T 3T 0U 1U 2U 3U 0V 1V 2V 3V) |
| |
| vmovdqa ymmD, ymmA |
| vpunpcklbw ymmA, ymmA, ymmE ; ymmA=(00 04 10 14 20 24 30 34 01 05 11 15 21 25 31 35 |
| ; 0G 0K 1G 1K 2G 2K 3G 3K 0H 0L 1H 1L 2H 2L 3H 3L) |
| vpunpckhbw ymmD, ymmD, ymmE ; ymmD=(02 06 12 16 22 26 32 36 03 07 13 17 23 27 33 37 |
| ; 0I 0M 1I 1M 2I 2M 3I 3M 0J 0N 1J 1N 2J 2N 3J 3N) |
| |
| vmovdqa ymmC, ymmF |
| vpunpcklbw ymmF, ymmF, ymmH ; ymmF=(08 0C 18 1C 28 2C 38 3C 09 0D 19 1D 29 2D 39 3D |
| ; 0O 0S 1O 1S 2O 2S 3O 3S 0P 0T 1P 1T 2P 2T 3P 3T) |
| vpunpckhbw ymmC, ymmC, ymmH ; ymmC=(0A 0E 1A 1E 2A 2E 3A 3E 0B 0F 1B 1F 2B 2F 3B 3F |
| ; 0Q 0U 1Q 1U 2Q 2U 3Q 3U 0R 0V 1R 1V 2R 2V 3R 3V) |
| |
| vmovdqa ymmB, ymmA |
| vpunpcklwd ymmA, ymmA, ymmF ; ymmA=(00 04 08 0C 10 14 18 1C 20 24 28 2C 30 34 38 3C |
| ; 0G 0K 0O 0S 1G 1K 1O 1S 2G 2K 2O 2S 3G 3K 3O 3S) |
| vpunpckhwd ymmB, ymmB, ymmF ; ymmB=(01 05 09 0D 11 15 19 1D 21 25 29 2D 31 35 39 3D |
| ; 0H 0L 0P 0T 1H 1L 1P 1T 2H 2L 2P 2T 3H 3L 3P 3T) |
| |
| vmovdqa ymmG, ymmD |
| vpunpcklwd ymmD, ymmD, ymmC ; ymmD=(02 06 0A 0E 12 16 1A 1E 22 26 2A 2E 32 36 3A 3E |
| ; 0I 0M 0Q 0U 1I 1M 1Q 1U 2I 2M 2Q 2U 3I 3M 3Q 3U) |
| vpunpckhwd ymmG, ymmG, ymmC ; ymmG=(03 07 0B 0F 13 17 1B 1F 23 27 2B 2F 33 37 3B 3F |
| ; 0J 0N 0R 0V 1J 1N 1R 1V 2J 2N 2R 2V 3J 3N 3R 3V) |
| |
| vmovdqa ymmE, ymmA |
| vpunpcklbw ymmA, ymmA, ymmD ; ymmA=(00 02 04 06 08 0A 0C 0E 10 12 14 16 18 1A 1C 1E |
| ; 0G 0I 0K 0M 0O 0Q 0S 0U 1G 1I 1K 1M 1O 1Q 1S 1U) |
| vpunpckhbw ymmE, ymmE, ymmD ; ymmE=(20 22 24 26 28 2A 2C 2E 30 32 34 36 38 3A 3C 3E |
| ; 2G 2I 2K 2M 2O 2Q 2S 2U 3G 3I 3K 3M 3O 3Q 3S 3U) |
| |
| vmovdqa ymmH, ymmB |
| vpunpcklbw ymmB, ymmB, ymmG ; ymmB=(01 03 05 07 09 0B 0D 0F 11 13 15 17 19 1B 1D 1F |
| ; 0H 0J 0L 0N 0P 0R 0T 0V 1H 1J 1L 1N 1P 1R 1T 1V) |
| vpunpckhbw ymmH, ymmH, ymmG ; ymmH=(21 23 25 27 29 2B 2D 2F 31 33 35 37 39 3B 3D 3F |
| ; 2H 2J 2L 2N 2P 2R 2T 2V 3H 3J 3L 3N 3P 3R 3T 3V) |
| |
| vpxor ymmF, ymmF, ymmF |
| |
| vmovdqa ymmC, ymmA |
| vpunpcklbw ymmA, ymmA, ymmF ; ymmA=(00 02 04 06 08 0A 0C 0E 0G 0I 0K 0M 0O 0Q 0S 0U) |
| vpunpckhbw ymmC, ymmC, ymmF ; ymmC=(10 12 14 16 18 1A 1C 1E 1G 1I 1K 1M 1O 1Q 1S 1U) |
| |
| vmovdqa ymmD, ymmB |
| vpunpcklbw ymmB, ymmB, ymmF ; ymmB=(01 03 05 07 09 0B 0D 0F 0H 0J 0L 0N 0P 0R 0T 0V) |
| vpunpckhbw ymmD, ymmD, ymmF ; ymmD=(11 13 15 17 19 1B 1D 1F 1H 1J 1L 1N 1P 1R 1T 1V) |
| |
| vmovdqa ymmG, ymmE |
| vpunpcklbw ymmE, ymmE, ymmF ; ymmE=(20 22 24 26 28 2A 2C 2E 2G 2I 2K 2M 2O 2Q 2S 2U) |
| vpunpckhbw ymmG, ymmG, ymmF ; ymmG=(30 32 34 36 38 3A 3C 3E 3G 3I 3K 3M 3O 3Q 3S 3U) |
| |
| vpunpcklbw ymmF, ymmF, ymmH |
| vpunpckhbw ymmH, ymmH, ymmH |
| vpsrlw ymmF, ymmF, BYTE_BIT ; ymmF=(21 23 25 27 29 2B 2D 2F 2H 2J 2L 2N 2P 2R 2T 2V) |
| vpsrlw ymmH, ymmH, BYTE_BIT ; ymmH=(31 33 35 37 39 3B 3D 3F 3H 3J 3L 3N 3P 3R 3T 3V) |
| |
| %endif ; RGB_PIXELSIZE ; --------------- |
| |
| ; ymm0=R(02468ACEGIKMOQSU)=RE, ymm2=G(02468ACEGIKMOQSU)=GE, ymm4=B(02468ACEGIKMOQSU)=BE |
| ; ymm1=R(13579BDFHJLNPRTV)=RO, ymm3=G(13579BDFHJLNPRTV)=GO, ymm5=B(13579BDFHJLNPRTV)=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 |
| |
| vmovdqa ymm6, ymm1 |
| vpunpcklwd ymm1, ymm1, ymm3 |
| vpunpckhwd ymm6, ymm6, ymm3 |
| vpmaddwd ymm1, ymm1, [rel PW_F0299_F0337] ; ymm1=ROL*FIX(0.299)+GOL*FIX(0.337) |
| vpmaddwd ymm6, ymm6, [rel PW_F0299_F0337] ; ymm6=ROH*FIX(0.299)+GOH*FIX(0.337) |
| |
| vmovdqa ymm7, ymm6 ; ymm7=ROH*FIX(0.299)+GOH*FIX(0.337) |
| |
| vmovdqa ymm6, ymm0 |
| vpunpcklwd ymm0, ymm0, ymm2 |
| vpunpckhwd ymm6, ymm6, ymm2 |
| vpmaddwd ymm0, ymm0, [rel PW_F0299_F0337] ; ymm0=REL*FIX(0.299)+GEL*FIX(0.337) |
| vpmaddwd ymm6, ymm6, [rel PW_F0299_F0337] ; ymm6=REH*FIX(0.299)+GEH*FIX(0.337) |
| |
| vmovdqa YMMWORD [wk(0)], ymm0 ; wk(0)=REL*FIX(0.299)+GEL*FIX(0.337) |
| vmovdqa YMMWORD [wk(1)], ymm6 ; wk(1)=REH*FIX(0.299)+GEH*FIX(0.337) |
| |
| vmovdqa ymm0, ymm5 ; ymm0=BO |
| vmovdqa ymm6, ymm4 ; ymm6=BE |
| |
| vmovdqa ymm4, ymm0 |
| vpunpcklwd ymm0, ymm0, ymm3 |
| vpunpckhwd ymm4, ymm4, ymm3 |
| vpmaddwd ymm0, ymm0, [rel PW_F0114_F0250] ; ymm0=BOL*FIX(0.114)+GOL*FIX(0.250) |
| vpmaddwd ymm4, ymm4, [rel PW_F0114_F0250] ; ymm4=BOH*FIX(0.114)+GOH*FIX(0.250) |
| |
| vmovdqa ymm3, [rel PD_ONEHALF] ; ymm3=[PD_ONEHALF] |
| |
| vpaddd ymm0, ymm0, ymm1 |
| vpaddd ymm4, ymm4, ymm7 |
| vpaddd ymm0, ymm0, ymm3 |
| vpaddd ymm4, ymm4, ymm3 |
| vpsrld ymm0, ymm0, SCALEBITS ; ymm0=YOL |
| vpsrld ymm4, ymm4, SCALEBITS ; ymm4=YOH |
| vpackssdw ymm0, ymm0, ymm4 ; ymm0=YO |
| |
| vmovdqa ymm4, ymm6 |
| vpunpcklwd ymm6, ymm6, ymm2 |
| vpunpckhwd ymm4, ymm4, ymm2 |
| vpmaddwd ymm6, ymm6, [rel PW_F0114_F0250] ; ymm6=BEL*FIX(0.114)+GEL*FIX(0.250) |
| vpmaddwd ymm4, ymm4, [rel PW_F0114_F0250] ; ymm4=BEH*FIX(0.114)+GEH*FIX(0.250) |
| |
| vmovdqa ymm2, [rel PD_ONEHALF] ; ymm2=[PD_ONEHALF] |
| |
| vpaddd ymm6, ymm6, YMMWORD [wk(0)] |
| vpaddd ymm4, ymm4, YMMWORD [wk(1)] |
| vpaddd ymm6, ymm6, ymm2 |
| vpaddd ymm4, ymm4, ymm2 |
| vpsrld ymm6, ymm6, SCALEBITS ; ymm6=YEL |
| vpsrld ymm4, ymm4, SCALEBITS ; ymm4=YEH |
| vpackssdw ymm6, ymm6, ymm4 ; ymm6=YE |
| |
| vpsllw ymm0, ymm0, BYTE_BIT |
| vpor ymm6, ymm6, ymm0 ; ymm6=Y |
| vmovdqu YMMWORD [rdi], ymm6 ; Save Y |
| |
| sub rcx, byte SIZEOF_YMMWORD |
| add rsi, RGB_PIXELSIZE*SIZEOF_YMMWORD ; inptr |
| add rdi, byte SIZEOF_YMMWORD ; outptr0 |
| cmp rcx, byte SIZEOF_YMMWORD |
| 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 |
| vzeroupper |
| uncollect_args 5 |
| mov rsp, rbp ; rsp <- aligned rbp |
| pop rsp ; rsp <- original rbp |
| 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 |
