| ; |
| ; jdcolext.asm - colorspace conversion (64-bit AVX2) |
| ; |
| ; Copyright 2009, 2012 Pierre Ossman <ossman@cendio.se> for Cendio AB |
| ; Copyright (C) 2009, 2012, 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_ycc_rgb_convert_avx2(JDIMENSION out_width, JSAMPIMAGE input_buf, |
| ; JDIMENSION input_row, JSAMPARRAY output_buf, |
| ; int num_rows) |
| ; |
| |
| ; r10d = JDIMENSION out_width |
| ; r11 = JSAMPIMAGE input_buf |
| ; r12d = JDIMENSION input_row |
| ; r13 = JSAMPARRAY output_buf |
| ; 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_ycc_rgb_convert_avx2) |
| |
| EXTN(jsimd_ycc_rgb_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 ; num_cols |
| test rcx, rcx |
| jz near .return |
| |
| push rcx |
| |
| mov rdi, r11 |
| mov ecx, r12d |
| mov rsip, JSAMPARRAY [rdi+0*SIZEOF_JSAMPARRAY] |
| mov rbxp, JSAMPARRAY [rdi+1*SIZEOF_JSAMPARRAY] |
| mov rdxp, JSAMPARRAY [rdi+2*SIZEOF_JSAMPARRAY] |
| lea rsi, [rsi+rcx*SIZEOF_JSAMPROW] |
| lea rbx, [rbx+rcx*SIZEOF_JSAMPROW] |
| lea rdx, [rdx+rcx*SIZEOF_JSAMPROW] |
| |
| pop rcx |
| |
| mov rdi, r13 |
| mov eax, r14d |
| test rax, rax |
| jle near .return |
| .rowloop: |
| push rax |
| push rdi |
| push rdx |
| push rbx |
| push rsi |
| push rcx ; col |
| |
| mov rsip, JSAMPROW [rsi] ; inptr0 |
| mov rbxp, JSAMPROW [rbx] ; inptr1 |
| mov rdxp, JSAMPROW [rdx] ; inptr2 |
| mov rdip, JSAMPROW [rdi] ; outptr |
| .columnloop: |
| |
| vmovdqu ymm5, YMMWORD [rbx] ; ymm5=Cb(0123456789ABCDEFGHIJKLMNOPQRSTUV) |
| vmovdqu ymm1, YMMWORD [rdx] ; ymm1=Cr(0123456789ABCDEFGHIJKLMNOPQRSTUV) |
| |
| vpcmpeqw ymm0, ymm0, ymm0 |
| vpcmpeqw ymm7, ymm7, ymm7 |
| vpsrlw ymm0, ymm0, BYTE_BIT ; ymm0={0xFF 0x00 0xFF 0x00 ..} |
| vpsllw ymm7, ymm7, 7 ; ymm7={0xFF80 0xFF80 0xFF80 0xFF80 ..} |
| |
| vpand ymm4, ymm0, ymm5 ; ymm4=Cb(02468ACEGIKMOQSU)=CbE |
| vpsrlw ymm5, ymm5, BYTE_BIT ; ymm5=Cb(13579BDFHJLNPRTV)=CbO |
| vpand ymm0, ymm0, ymm1 ; ymm0=Cr(02468ACEGIKMOQSU)=CrE |
| vpsrlw ymm1, ymm1, BYTE_BIT ; ymm1=Cr(13579BDFHJLNPRTV)=CrO |
| |
| vpaddw ymm2, ymm4, ymm7 |
| vpaddw ymm3, ymm5, ymm7 |
| vpaddw ymm6, ymm0, ymm7 |
| vpaddw ymm7, ymm1, ymm7 |
| |
| ; (Original) |
| ; R = Y + 1.40200 * Cr |
| ; G = Y - 0.34414 * Cb - 0.71414 * Cr |
| ; B = Y + 1.77200 * Cb |
| ; |
| ; (This implementation) |
| ; R = Y + 0.40200 * Cr + Cr |
| ; G = Y - 0.34414 * Cb + 0.28586 * Cr - Cr |
| ; B = Y - 0.22800 * Cb + Cb + Cb |
| |
| vpaddw ymm4, ymm2, ymm2 ; ymm4=2*CbE |
| vpaddw ymm5, ymm3, ymm3 ; ymm5=2*CbO |
| vpaddw ymm0, ymm6, ymm6 ; ymm0=2*CrE |
| vpaddw ymm1, ymm7, ymm7 ; ymm1=2*CrO |
| |
| vpmulhw ymm4, ymm4, [rel PW_MF0228] ; ymm4=(2*CbE * -FIX(0.22800)) |
| vpmulhw ymm5, ymm5, [rel PW_MF0228] ; ymm5=(2*CbO * -FIX(0.22800)) |
| vpmulhw ymm0, ymm0, [rel PW_F0402] ; ymm0=(2*CrE * FIX(0.40200)) |
| vpmulhw ymm1, ymm1, [rel PW_F0402] ; ymm1=(2*CrO * FIX(0.40200)) |
| |
| vpaddw ymm4, ymm4, [rel PW_ONE] |
| vpaddw ymm5, ymm5, [rel PW_ONE] |
| vpsraw ymm4, ymm4, 1 ; ymm4=(CbE * -FIX(0.22800)) |
| vpsraw ymm5, ymm5, 1 ; ymm5=(CbO * -FIX(0.22800)) |
| vpaddw ymm0, ymm0, [rel PW_ONE] |
| vpaddw ymm1, ymm1, [rel PW_ONE] |
| vpsraw ymm0, ymm0, 1 ; ymm0=(CrE * FIX(0.40200)) |
| vpsraw ymm1, ymm1, 1 ; ymm1=(CrO * FIX(0.40200)) |
| |
| vpaddw ymm4, ymm4, ymm2 |
| vpaddw ymm5, ymm5, ymm3 |
| vpaddw ymm4, ymm4, ymm2 ; ymm4=(CbE * FIX(1.77200))=(B-Y)E |
| vpaddw ymm5, ymm5, ymm3 ; ymm5=(CbO * FIX(1.77200))=(B-Y)O |
| vpaddw ymm0, ymm0, ymm6 ; ymm0=(CrE * FIX(1.40200))=(R-Y)E |
| vpaddw ymm1, ymm1, ymm7 ; ymm1=(CrO * FIX(1.40200))=(R-Y)O |
| |
| vmovdqa YMMWORD [wk(0)], ymm4 ; wk(0)=(B-Y)E |
| vmovdqa YMMWORD [wk(1)], ymm5 ; wk(1)=(B-Y)O |
| |
| vpunpckhwd ymm4, ymm2, ymm6 |
| vpunpcklwd ymm2, ymm2, ymm6 |
| vpmaddwd ymm2, ymm2, [rel PW_MF0344_F0285] |
| vpmaddwd ymm4, ymm4, [rel PW_MF0344_F0285] |
| vpunpckhwd ymm5, ymm3, ymm7 |
| vpunpcklwd ymm3, ymm3, ymm7 |
| vpmaddwd ymm3, ymm3, [rel PW_MF0344_F0285] |
| vpmaddwd ymm5, ymm5, [rel PW_MF0344_F0285] |
| |
| vpaddd ymm2, ymm2, [rel PD_ONEHALF] |
| vpaddd ymm4, ymm4, [rel PD_ONEHALF] |
| vpsrad ymm2, ymm2, SCALEBITS |
| vpsrad ymm4, ymm4, SCALEBITS |
| vpaddd ymm3, ymm3, [rel PD_ONEHALF] |
| vpaddd ymm5, ymm5, [rel PD_ONEHALF] |
| vpsrad ymm3, ymm3, SCALEBITS |
| vpsrad ymm5, ymm5, SCALEBITS |
| |
| vpackssdw ymm2, ymm2, ymm4 ; ymm2=CbE*-FIX(0.344)+CrE*FIX(0.285) |
| vpackssdw ymm3, ymm3, ymm5 ; ymm3=CbO*-FIX(0.344)+CrO*FIX(0.285) |
| vpsubw ymm2, ymm2, ymm6 ; ymm2=CbE*-FIX(0.344)+CrE*-FIX(0.714)=(G-Y)E |
| vpsubw ymm3, ymm3, ymm7 ; ymm3=CbO*-FIX(0.344)+CrO*-FIX(0.714)=(G-Y)O |
| |
| vmovdqu ymm5, YMMWORD [rsi] ; ymm5=Y(0123456789ABCDEFGHIJKLMNOPQRSTUV) |
| |
| vpcmpeqw ymm4, ymm4, ymm4 |
| vpsrlw ymm4, ymm4, BYTE_BIT ; ymm4={0xFF 0x00 0xFF 0x00 ..} |
| vpand ymm4, ymm4, ymm5 ; ymm4=Y(02468ACEGIKMOQSU)=YE |
| vpsrlw ymm5, ymm5, BYTE_BIT ; ymm5=Y(13579BDFHJLNPRTV)=YO |
| |
| vpaddw ymm0, ymm0, ymm4 ; ymm0=((R-Y)E+YE)=RE=R(02468ACEGIKMOQSU) |
| vpaddw ymm1, ymm1, ymm5 ; ymm1=((R-Y)O+YO)=RO=R(13579BDFHJLNPRTV) |
| vpackuswb ymm0, ymm0, ymm0 ; ymm0=R(02468ACE********GIKMOQSU********) |
| vpackuswb ymm1, ymm1, ymm1 ; ymm1=R(13579BDF********HJLNPRTV********) |
| |
| vpaddw ymm2, ymm2, ymm4 ; ymm2=((G-Y)E+YE)=GE=G(02468ACEGIKMOQSU) |
| vpaddw ymm3, ymm3, ymm5 ; ymm3=((G-Y)O+YO)=GO=G(13579BDFHJLNPRTV) |
| vpackuswb ymm2, ymm2, ymm2 ; ymm2=G(02468ACE********GIKMOQSU********) |
| vpackuswb ymm3, ymm3, ymm3 ; ymm3=G(13579BDF********HJLNPRTV********) |
| |
| vpaddw ymm4, ymm4, YMMWORD [wk(0)] ; ymm4=(YE+(B-Y)E)=BE=B(02468ACEGIKMOQSU) |
| vpaddw ymm5, ymm5, YMMWORD [wk(1)] ; ymm5=(YO+(B-Y)O)=BO=B(13579BDFHJLNPRTV) |
| vpackuswb ymm4, ymm4, ymm4 ; ymm4=B(02468ACE********GIKMOQSU********) |
| vpackuswb ymm5, ymm5, ymm5 ; ymm5=B(13579BDF********HJLNPRTV********) |
| |
| %if RGB_PIXELSIZE == 3 ; --------------- |
| |
| ; ymmA=(00 02 04 06 08 0A 0C 0E ** 0G 0I 0K 0M 0O 0Q 0S 0U **) |
| ; ymmB=(01 03 05 07 09 0B 0D 0F ** 0H 0J 0L 0N 0P 0R 0T 0V **) |
| ; ymmC=(10 12 14 16 18 1A 1C 1E ** 1G 1I 1K 1M 1O 1Q 1S 1U **) |
| ; ymmD=(11 13 15 17 19 1B 1D 1F ** 1H 1J 1L 1N 1P 1R 1T 1V **) |
| ; ymmE=(20 22 24 26 28 2A 2C 2E ** 2G 2I 2K 2M 2O 2Q 2S 2U **) |
| ; ymmF=(21 23 25 27 29 2B 2D 2F ** 2H 2J 2L 2N 2P 2R 2T 2V **) |
| ; ymmG=(** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **) |
| ; ymmH=(** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **) |
| |
| vpunpcklbw ymmA, ymmA, ymmC ; ymmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E |
| ; 0G 1G 0I 1I 0K 1K 0M 1M 0O 1O 0Q 1Q 0S 1S 0U 1U) |
| vpunpcklbw ymmE, ymmE, ymmB ; ymmE=(20 01 22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F |
| ; 2G 0H 2I 0J 2K 0L 2M 0N 2O 0P 2Q 0R 2S 0T 2U 0V) |
| vpunpcklbw ymmD, ymmD, ymmF ; ymmD=(11 21 13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F |
| ; 1H 2H 1J 2J 1L 2L 1N 2N 1P 2P 1R 2R 1T 2T 1V 2V) |
| |
| vpsrldq ymmH, ymmA, 2 ; ymmH=(02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E 0G 1G |
| ; 0I 1I 0K 1K 0M 1M 0O 1O 0Q 1Q 0S 1S 0U 1U -- --) |
| vpunpckhwd ymmG, ymmA, ymmE ; ymmG=(08 18 28 09 0A 1A 2A 0B 0C 1C 2C 0D 0E 1E 2E 0F |
| ; 0O 1O 2O 0P 0Q 1Q 2Q 0R 0S 1S 2S 0T 0U 1U 2U 0V) |
| vpunpcklwd ymmA, ymmA, ymmE ; ymmA=(00 10 20 01 02 12 22 03 04 14 24 05 06 16 26 07 |
| ; 0G 1G 2G 0H 0I 1I 2I 0J 0K 1K 2K 0L 0M 1M 2M 0N) |
| |
| vpsrldq ymmE, ymmE, 2 ; ymmE=(22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F 2G 0H |
| ; 2I 0J 2K 0L 2M 0N 2O 0P 2Q 0R 2S 0T 2U 0V -- --) |
| |
| vpsrldq ymmB, ymmD, 2 ; ymmB=(13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F 1H 2H |
| ; 1J 2J 1L 2L 1N 2N 1P 2P 1R 2R 1T 2T 1V 2V -- --) |
| vpunpckhwd ymmC, ymmD, ymmH ; ymmC=(19 29 0A 1A 1B 2B 0C 1C 1D 2D 0E 1E 1F 2F 0G 1G |
| ; 1P 2P 0Q 1Q 1R 2R 0S 1S 1T 2T 0U 1U 1V 2V -- --) |
| vpunpcklwd ymmD, ymmD, ymmH ; ymmD=(11 21 02 12 13 23 04 14 15 25 06 16 17 27 08 18 |
| ; 1H 2H 0I 1I 1J 2J 0K 1K 1L 2L 0M 1M 1N 2N 0O 1O) |
| |
| vpunpckhwd ymmF, ymmE, ymmB ; ymmF=(2A 0B 1B 2B 2C 0D 1D 2D 2E 0F 1F 2F 2G 0H 1H 2H |
| ; 2Q 0R 1R 2R 2S 0T 1T 2T 2U 0V 1V 2V -- -- -- --) |
| vpunpcklwd ymmE, ymmE, ymmB ; ymmE=(22 03 13 23 24 05 15 25 26 07 17 27 28 09 19 29 |
| ; 2I 0J 1J 2J 2K 0L 1L 2L 2M 0N 1N 2N 2O 0P 1P 2P) |
| |
| vpshufd ymmH, ymmA, 0x4E ; ymmH=(04 14 24 05 06 16 26 07 00 10 20 01 02 12 22 03 |
| ; 0K 1K 2K 0L 0M 1M 2M 0N 0G 1G 2G 0H 0I 1I 2I 0J) |
| vpunpckldq ymmA, ymmA, ymmD ; ymmA=(00 10 20 01 11 21 02 12 02 12 22 03 13 23 04 14 |
| ; 0G 1G 2G 0H 1H 2H 0I 1I 0I 1I 2I 0J 1J 2J 0K 1K) |
| vpunpckhdq ymmD, ymmD, ymmE ; ymmD=(15 25 06 16 26 07 17 27 17 27 08 18 28 09 19 29 |
| ; 1L 2L 0M 1M 2M 0N 1N 2N 1N 2N 0O 1O 2O 0P 1P 2P) |
| vpunpckldq ymmE, ymmE, ymmH ; ymmE=(22 03 13 23 04 14 24 05 24 05 15 25 06 16 26 07 |
| ; 2I 0J 1J 2J 0K 1K 2K 0L 2K 0L 1L 2L 0M 1M 2M 0N) |
| |
| vpshufd ymmH, ymmG, 0x4E ; ymmH=(0C 1C 2C 0D 0E 1E 2E 0F 08 18 28 09 0A 1A 2A 0B |
| ; 0S 1S 2S 0T 0U 1U 2U 0V 0O 1O 2O 0P 0Q 1Q 2Q 0R) |
| vpunpckldq ymmG, ymmG, ymmC ; ymmG=(08 18 28 09 19 29 0A 1A 0A 1A 2A 0B 1B 2B 0C 1C |
| ; 0O 1O 2O 0P 1P 2P 0Q 1Q 0Q 1Q 2Q 0R 1R 2R 0S 1S) |
| vpunpckhdq ymmC, ymmC, ymmF ; ymmC=(1D 2D 0E 1E 2E 0F 1F 2F 1F 2F 0G 1G 2G 0H 1H 2H |
| ; 1T 2T 0U 1U 2U 0V 1V 2V 1V 2V -- -- -- -- -- --) |
| vpunpckldq ymmF, ymmF, ymmH ; ymmF=(2A 0B 1B 2B 0C 1C 2C 0D 2C 0D 1D 2D 0E 1E 2E 0F |
| ; 2Q 0R 1R 2R 0S 1S 2S 0T 2S 0T 1T 2T 0U 1U 2U 0V) |
| |
| vpunpcklqdq ymmH, ymmA, ymmE ; ymmH=(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) |
| vpunpcklqdq ymmG, ymmD, ymmG ; ymmG=(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) |
| vpunpcklqdq ymmC, ymmF, ymmC ; ymmC=(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 ymmA, ymmH, ymmG, 0x20 ; 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) |
| vperm2i128 ymmD, ymmC, ymmH, 0x30 ; ymmD=(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) |
| vperm2i128 ymmF, ymmG, ymmC, 0x31 ; ymmF=(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) |
| |
| cmp rcx, byte SIZEOF_YMMWORD |
| jb short .column_st64 |
| |
| test rdi, SIZEOF_YMMWORD-1 |
| jnz short .out1 |
| ; --(aligned)------------------- |
| vmovntdq YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA |
| vmovntdq YMMWORD [rdi+1*SIZEOF_YMMWORD], ymmD |
| vmovntdq YMMWORD [rdi+2*SIZEOF_YMMWORD], ymmF |
| jmp short .out0 |
| .out1: ; --(unaligned)----------------- |
| vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA |
| vmovdqu YMMWORD [rdi+1*SIZEOF_YMMWORD], ymmD |
| vmovdqu YMMWORD [rdi+2*SIZEOF_YMMWORD], ymmF |
| .out0: |
| add rdi, byte RGB_PIXELSIZE*SIZEOF_YMMWORD ; outptr |
| sub rcx, byte SIZEOF_YMMWORD |
| jz near .nextrow |
| |
| add rsi, byte SIZEOF_YMMWORD ; inptr0 |
| add rbx, byte SIZEOF_YMMWORD ; inptr1 |
| add rdx, byte SIZEOF_YMMWORD ; inptr2 |
| jmp near .columnloop |
| |
| .column_st64: |
| lea rcx, [rcx+rcx*2] ; imul ecx, RGB_PIXELSIZE |
| cmp rcx, byte 2*SIZEOF_YMMWORD |
| jb short .column_st32 |
| vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA |
| vmovdqu YMMWORD [rdi+1*SIZEOF_YMMWORD], ymmD |
| add rdi, byte 2*SIZEOF_YMMWORD ; outptr |
| vmovdqa ymmA, ymmF |
| sub rcx, byte 2*SIZEOF_YMMWORD |
| jmp short .column_st31 |
| .column_st32: |
| cmp rcx, byte SIZEOF_YMMWORD |
| jb short .column_st31 |
| vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA |
| add rdi, byte SIZEOF_YMMWORD ; outptr |
| vmovdqa ymmA, ymmD |
| sub rcx, byte SIZEOF_YMMWORD |
| jmp short .column_st31 |
| .column_st31: |
| cmp rcx, byte SIZEOF_XMMWORD |
| jb short .column_st15 |
| vmovdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA |
| add rdi, byte SIZEOF_XMMWORD ; outptr |
| vperm2i128 ymmA, ymmA, ymmA, 1 |
| sub rcx, byte SIZEOF_XMMWORD |
| .column_st15: |
| ; Store the lower 8 bytes of xmmA to the output when it has enough |
| ; space. |
| cmp rcx, byte SIZEOF_MMWORD |
| jb short .column_st7 |
| vmovq XMM_MMWORD [rdi], xmmA |
| add rdi, byte SIZEOF_MMWORD |
| sub rcx, byte SIZEOF_MMWORD |
| vpsrldq xmmA, xmmA, SIZEOF_MMWORD |
| .column_st7: |
| ; Store the lower 4 bytes of xmmA to the output when it has enough |
| ; space. |
| cmp rcx, byte SIZEOF_DWORD |
| jb short .column_st3 |
| vmovd XMM_DWORD [rdi], xmmA |
| add rdi, byte SIZEOF_DWORD |
| sub rcx, byte SIZEOF_DWORD |
| vpsrldq xmmA, xmmA, SIZEOF_DWORD |
| .column_st3: |
| ; Store the lower 2 bytes of rax to the output when it has enough |
| ; space. |
| vmovd eax, xmmA |
| cmp rcx, byte SIZEOF_WORD |
| jb short .column_st1 |
| mov word [rdi], ax |
| add rdi, byte SIZEOF_WORD |
| sub rcx, byte SIZEOF_WORD |
| shr rax, 16 |
| .column_st1: |
| ; Store the lower 1 byte of rax to the output when it has enough |
| ; space. |
| test rcx, rcx |
| jz short .nextrow |
| mov byte [rdi], al |
| |
| %else ; RGB_PIXELSIZE == 4 ; ----------- |
| |
| %ifdef RGBX_FILLER_0XFF |
| vpcmpeqb ymm6, ymm6, ymm6 ; ymm6=XE=X(02468ACE********GIKMOQSU********) |
| vpcmpeqb ymm7, ymm7, ymm7 ; ymm7=XO=X(13579BDF********HJLNPRTV********) |
| %else |
| vpxor ymm6, ymm6, ymm6 ; ymm6=XE=X(02468ACE********GIKMOQSU********) |
| vpxor ymm7, ymm7, ymm7 ; ymm7=XO=X(13579BDF********HJLNPRTV********) |
| %endif |
| ; ymmA=(00 02 04 06 08 0A 0C 0E ** 0G 0I 0K 0M 0O 0Q 0S 0U **) |
| ; ymmB=(01 03 05 07 09 0B 0D 0F ** 0H 0J 0L 0N 0P 0R 0T 0V **) |
| ; ymmC=(10 12 14 16 18 1A 1C 1E ** 1G 1I 1K 1M 1O 1Q 1S 1U **) |
| ; ymmD=(11 13 15 17 19 1B 1D 1F ** 1H 1J 1L 1N 1P 1R 1T 1V **) |
| ; ymmE=(20 22 24 26 28 2A 2C 2E ** 2G 2I 2K 2M 2O 2Q 2S 2U **) |
| ; ymmF=(21 23 25 27 29 2B 2D 2F ** 2H 2J 2L 2N 2P 2R 2T 2V **) |
| ; ymmG=(30 32 34 36 38 3A 3C 3E ** 3G 3I 3K 3M 3O 3Q 3S 3U **) |
| ; ymmH=(31 33 35 37 39 3B 3D 3F ** 3H 3J 3L 3N 3P 3R 3T 3V **) |
| |
| vpunpcklbw ymmA, ymmA, ymmC ; ymmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E |
| ; 0G 1G 0I 1I 0K 1K 0M 1M 0O 1O 0Q 1Q 0S 1S 0U 1U) |
| vpunpcklbw ymmE, ymmE, ymmG ; ymmE=(20 30 22 32 24 34 26 36 28 38 2A 3A 2C 3C 2E 3E |
| ; 2G 3G 2I 3I 2K 3K 2M 3M 2O 3O 2Q 3Q 2S 3S 2U 3U) |
| vpunpcklbw ymmB, ymmB, ymmD ; ymmB=(01 11 03 13 05 15 07 17 09 19 0B 1B 0D 1D 0F 1F |
| ; 0H 1H 0J 1J 0L 1L 0N 1N 0P 1P 0R 1R 0T 1T 0V 1V) |
| vpunpcklbw ymmF, ymmF, ymmH ; ymmF=(21 31 23 33 25 35 27 37 29 39 2B 3B 2D 3D 2F 3F |
| ; 2H 3H 2J 3J 2L 3L 2N 3N 2P 3P 2R 3R 2T 3T 2V 3V) |
| |
| vpunpckhwd ymmC, ymmA, ymmE ; ymmC=(08 18 28 38 0A 1A 2A 3A 0C 1C 2C 3C 0E 1E 2E 3E |
| ; 0O 1O 2O 3O 0Q 1Q 2Q 3Q 0S 1S 2S 3S 0U 1U 2U 3U) |
| vpunpcklwd ymmA, ymmA, ymmE ; ymmA=(00 10 20 30 02 12 22 32 04 14 24 34 06 16 26 36 |
| ; 0G 1G 2G 3G 0I 1I 2I 3I 0K 1K 2K 3K 0M 1M 2M 3M) |
| vpunpckhwd ymmG, ymmB, ymmF ; ymmG=(09 19 29 39 0B 1B 2B 3B 0D 1D 2D 3D 0F 1F 2F 3F |
| ; 0P 1P 2P 3P 0R 1R 2R 3R 0T 1T 2T 3T 0V 1V 2V 3V) |
| vpunpcklwd ymmB, ymmB, ymmF ; ymmB=(01 11 21 31 03 13 23 33 05 15 25 35 07 17 27 37 |
| ; 0H 1H 2H 3H 0J 1J 2J 3J 0L 1L 2L 3L 0N 1N 2N 3N) |
| |
| vpunpckhdq ymmE, ymmA, ymmB ; 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) |
| vpunpckldq ymmB, ymmA, ymmB ; ymmB=(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) |
| vpunpckhdq ymmF, ymmC, ymmG ; ymmF=(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) |
| vpunpckldq ymmG, ymmC, ymmG ; ymmG=(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 ymmA, ymmB, ymmE, 0x20 ; 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) |
| vperm2i128 ymmD, ymmG, ymmF, 0x20 ; ymmD=(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) |
| vperm2i128 ymmC, ymmB, ymmE, 0x31 ; ymmC=(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) |
| vperm2i128 ymmH, ymmG, ymmF, 0x31 ; 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) |
| |
| cmp rcx, byte SIZEOF_YMMWORD |
| jb short .column_st64 |
| |
| test rdi, SIZEOF_YMMWORD-1 |
| jnz short .out1 |
| ; --(aligned)------------------- |
| vmovntdq YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA |
| vmovntdq YMMWORD [rdi+1*SIZEOF_YMMWORD], ymmD |
| vmovntdq YMMWORD [rdi+2*SIZEOF_YMMWORD], ymmC |
| vmovntdq YMMWORD [rdi+3*SIZEOF_YMMWORD], ymmH |
| jmp short .out0 |
| .out1: ; --(unaligned)----------------- |
| vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA |
| vmovdqu YMMWORD [rdi+1*SIZEOF_YMMWORD], ymmD |
| vmovdqu YMMWORD [rdi+2*SIZEOF_YMMWORD], ymmC |
| vmovdqu YMMWORD [rdi+3*SIZEOF_YMMWORD], ymmH |
| .out0: |
| add rdi, RGB_PIXELSIZE*SIZEOF_YMMWORD ; outptr |
| sub rcx, byte SIZEOF_YMMWORD |
| jz near .nextrow |
| |
| add rsi, byte SIZEOF_YMMWORD ; inptr0 |
| add rbx, byte SIZEOF_YMMWORD ; inptr1 |
| add rdx, byte SIZEOF_YMMWORD ; inptr2 |
| jmp near .columnloop |
| |
| .column_st64: |
| cmp rcx, byte SIZEOF_YMMWORD/2 |
| jb short .column_st32 |
| vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA |
| vmovdqu YMMWORD [rdi+1*SIZEOF_YMMWORD], ymmD |
| add rdi, byte 2*SIZEOF_YMMWORD ; outptr |
| vmovdqa ymmA, ymmC |
| vmovdqa ymmD, ymmH |
| sub rcx, byte SIZEOF_YMMWORD/2 |
| .column_st32: |
| cmp rcx, byte SIZEOF_YMMWORD/4 |
| jb short .column_st16 |
| vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA |
| add rdi, byte SIZEOF_YMMWORD ; outptr |
| vmovdqa ymmA, ymmD |
| sub rcx, byte SIZEOF_YMMWORD/4 |
| .column_st16: |
| cmp rcx, byte SIZEOF_YMMWORD/8 |
| jb short .column_st15 |
| vmovdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA |
| vperm2i128 ymmA, ymmA, ymmA, 1 |
| add rdi, byte SIZEOF_XMMWORD ; outptr |
| sub rcx, byte SIZEOF_YMMWORD/8 |
| .column_st15: |
| ; Store two pixels (8 bytes) of ymmA to the output when it has enough |
| ; space. |
| cmp rcx, byte SIZEOF_YMMWORD/16 |
| jb short .column_st7 |
| vmovq MMWORD [rdi], xmmA |
| add rdi, byte SIZEOF_YMMWORD/16*4 |
| sub rcx, byte SIZEOF_YMMWORD/16 |
| vpsrldq xmmA, SIZEOF_YMMWORD/16*4 |
| .column_st7: |
| ; Store one pixel (4 bytes) of ymmA to the output when it has enough |
| ; space. |
| test rcx, rcx |
| jz short .nextrow |
| vmovd XMM_DWORD [rdi], xmmA |
| |
| %endif ; RGB_PIXELSIZE ; --------------- |
| |
| .nextrow: |
| pop rcx |
| pop rsi |
| pop rbx |
| pop rdx |
| pop rdi |
| pop rax |
| |
| add rsi, byte SIZEOF_JSAMPROW |
| add rbx, byte SIZEOF_JSAMPROW |
| add rdx, byte SIZEOF_JSAMPROW |
| add rdi, byte SIZEOF_JSAMPROW ; output_buf |
| dec rax ; num_rows |
| jg near .rowloop |
| |
| sfence ; flush the write buffer |
| |
| .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 |
