зеркало из https://github.com/mozilla/mozjpeg.git
379 строки
11 KiB
PHP
379 строки
11 KiB
PHP
;
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; jsimdext.inc - common declarations
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;
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; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
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; Copyright 2010 D. R. Commander
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;
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; Based on
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; x86 SIMD extension for IJG JPEG library - version 1.02
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;
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; Copyright (C) 1999-2006, MIYASAKA Masaru.
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;
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; This software is provided 'as-is', without any express or implied
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; warranty. In no event will the authors be held liable for any damages
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; arising from the use of this software.
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;
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; Permission is granted to anyone to use this software for any purpose,
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; including commercial applications, and to alter it and redistribute it
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; freely, subject to the following restrictions:
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;
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; 1. The origin of this software must not be misrepresented; you must not
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; claim that you wrote the original software. If you use this software
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; in a product, an acknowledgment in the product documentation would be
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; appreciated but is not required.
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; 2. Altered source versions must be plainly marked as such, and must not be
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; misrepresented as being the original software.
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; 3. This notice may not be removed or altered from any source distribution.
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;
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; [TAB8]
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; ==========================================================================
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; System-dependent configurations
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%ifdef WIN32 ; ----(nasm -fwin32 -DWIN32 ...)--------
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; * Microsoft Visual C++
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; * MinGW (Minimalist GNU for Windows)
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; * CygWin
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; * LCC-Win32
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; -- segment definition --
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;
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%ifdef __YASM_VER__
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%define SEG_TEXT .text align=16
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%define SEG_CONST .rdata align=16
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%else
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%define SEG_TEXT .text align=16 public use32 class=CODE
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%define SEG_CONST .rdata align=16 public use32 class=CONST
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%endif
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%elifdef WIN64 ; ----(nasm -fwin64 -DWIN64 ...)--------
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; * Microsoft Visual C++
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; -- segment definition --
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;
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%ifdef __YASM_VER__
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%define SEG_TEXT .text align=16
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%define SEG_CONST .rdata align=16
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%else
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%define SEG_TEXT .text align=16 public use64 class=CODE
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%define SEG_CONST .rdata align=16 public use64 class=CONST
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%endif
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%define EXTN(name) name ; foo() -> foo
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%elifdef OBJ32 ; ----(nasm -fobj -DOBJ32 ...)----------
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; * Borland C++ (Win32)
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; -- segment definition --
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;
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%define SEG_TEXT .text align=16 public use32 class=CODE
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%define SEG_CONST .data align=16 public use32 class=DATA
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%elifdef ELF ; ----(nasm -felf[64] -DELF ...)------------
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; * Linux
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; * *BSD family Unix using elf format
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; * Unix System V, including Solaris x86, UnixWare and SCO Unix
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; mark stack as non-executable
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section .note.GNU-stack noalloc noexec nowrite progbits
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; -- segment definition --
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;
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%ifdef __x86_64__
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%define SEG_TEXT .text progbits align=16
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%define SEG_CONST .rodata progbits align=16
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%else
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%define SEG_TEXT .text progbits alloc exec nowrite align=16
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%define SEG_CONST .rodata progbits alloc noexec nowrite align=16
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%endif
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%define STRICT_MEMORY_ACCESS 1
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; To make the code position-independent, append -DPIC to the commandline
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;
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%define GOT_SYMBOL _GLOBAL_OFFSET_TABLE_ ; ELF supports PIC
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%define EXTN(name) name ; foo() -> foo
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%elifdef AOUT ; ----(nasm -faoutb/aout -DAOUT ...)----
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; * Older Linux using a.out format (nasm -f aout -DAOUT ...)
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; * *BSD family Unix using a.out format (nasm -f aoutb -DAOUT ...)
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; -- segment definition --
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;
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%define SEG_TEXT .text
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%define SEG_CONST .data
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; To make the code position-independent, append -DPIC to the commandline
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;
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%define GOT_SYMBOL __GLOBAL_OFFSET_TABLE_ ; BSD-style a.out supports PIC
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%elifdef MACHO ; ----(nasm -fmacho -DMACHO ...)--------
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; * NeXTstep/OpenStep/Rhapsody/Darwin/MacOS X (Mach-O format)
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; -- segment definition --
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;
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%define SEG_TEXT .text ;align=16 ; nasm doesn't accept align=16. why?
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%define SEG_CONST .rodata align=16
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; The generation of position-independent code (PIC) is the default on Darwin.
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;
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%define PIC
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%define GOT_SYMBOL _MACHO_PIC_ ; Mach-O style code-relative addressing
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%else ; ----(Other case)----------------------
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; -- segment definition --
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;
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%define SEG_TEXT .text
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%define SEG_CONST .data
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%endif ; ----------------------------------------------
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; ==========================================================================
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; --------------------------------------------------------------------------
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; Common types
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;
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%ifdef __x86_64__
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%define POINTER qword ; general pointer type
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%define SIZEOF_POINTER SIZEOF_QWORD ; sizeof(POINTER)
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%define POINTER_BIT QWORD_BIT ; sizeof(POINTER)*BYTE_BIT
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%else
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%define POINTER dword ; general pointer type
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%define SIZEOF_POINTER SIZEOF_DWORD ; sizeof(POINTER)
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%define POINTER_BIT DWORD_BIT ; sizeof(POINTER)*BYTE_BIT
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%endif
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%define INT dword ; signed integer type
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%define SIZEOF_INT SIZEOF_DWORD ; sizeof(INT)
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%define INT_BIT DWORD_BIT ; sizeof(INT)*BYTE_BIT
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%define FP32 dword ; IEEE754 single
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%define SIZEOF_FP32 SIZEOF_DWORD ; sizeof(FP32)
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%define FP32_BIT DWORD_BIT ; sizeof(FP32)*BYTE_BIT
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%define MMWORD qword ; int64 (MMX register)
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%define SIZEOF_MMWORD SIZEOF_QWORD ; sizeof(MMWORD)
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%define MMWORD_BIT QWORD_BIT ; sizeof(MMWORD)*BYTE_BIT
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; NASM is buggy and doesn't properly handle operand sizes for SSE
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; instructions, so for now we have to define XMMWORD as blank.
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%define XMMWORD ; int128 (SSE register)
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%define SIZEOF_XMMWORD SIZEOF_OWORD ; sizeof(XMMWORD)
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%define XMMWORD_BIT OWORD_BIT ; sizeof(XMMWORD)*BYTE_BIT
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; Similar hacks for when we load a dword or MMWORD into an xmm# register
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%define XMM_DWORD
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%define XMM_MMWORD
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%define SIZEOF_BYTE 1 ; sizeof(BYTE)
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%define SIZEOF_WORD 2 ; sizeof(WORD)
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%define SIZEOF_DWORD 4 ; sizeof(DWORD)
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%define SIZEOF_QWORD 8 ; sizeof(QWORD)
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%define SIZEOF_OWORD 16 ; sizeof(OWORD)
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%define BYTE_BIT 8 ; CHAR_BIT in C
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%define WORD_BIT 16 ; sizeof(WORD)*BYTE_BIT
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%define DWORD_BIT 32 ; sizeof(DWORD)*BYTE_BIT
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%define QWORD_BIT 64 ; sizeof(QWORD)*BYTE_BIT
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%define OWORD_BIT 128 ; sizeof(OWORD)*BYTE_BIT
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; --------------------------------------------------------------------------
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; External Symbol Name
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;
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%ifndef EXTN
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%define EXTN(name) _ %+ name ; foo() -> _foo
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%endif
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; --------------------------------------------------------------------------
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; Macros for position-independent code (PIC) support
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;
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%ifndef GOT_SYMBOL
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%undef PIC
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%endif
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%ifdef PIC ; -------------------------------------------
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%ifidn GOT_SYMBOL,_MACHO_PIC_ ; --------------------
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; At present, nasm doesn't seem to support PIC generation for Mach-O.
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; The PIC support code below is a little tricky.
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SECTION SEG_CONST
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const_base:
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%define GOTOFF(got,sym) (got) + (sym) - const_base
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%imacro get_GOT 1
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; NOTE: this macro destroys ecx resister.
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call %%geteip
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add ecx, byte (%%ref - $)
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jmp short %%adjust
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%%geteip:
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mov ecx, POINTER [esp]
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ret
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%%adjust:
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push ebp
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xor ebp,ebp ; ebp = 0
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%ifidni %1,ebx ; (%1 == ebx)
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; db 0x8D,0x9C + jmp near const_base =
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; lea ebx, [ecx+ebp*8+(const_base-%%ref)] ; 8D,9C,E9,(offset32)
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db 0x8D,0x9C ; 8D,9C
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jmp near const_base ; E9,(const_base-%%ref)
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%%ref:
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%else ; (%1 != ebx)
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; db 0x8D,0x8C + jmp near const_base =
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; lea ecx, [ecx+ebp*8+(const_base-%%ref)] ; 8D,8C,E9,(offset32)
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db 0x8D,0x8C ; 8D,8C
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jmp near const_base ; E9,(const_base-%%ref)
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%%ref: mov %1, ecx
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%endif ; (%1 == ebx)
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pop ebp
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%endmacro
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%else ; GOT_SYMBOL != _MACHO_PIC_ ----------------
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%define GOTOFF(got,sym) (got) + (sym) wrt ..gotoff
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%imacro get_GOT 1
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extern GOT_SYMBOL
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call %%geteip
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add %1, GOT_SYMBOL + $$ - $ wrt ..gotpc
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jmp short %%done
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%%geteip:
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mov %1, POINTER [esp]
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ret
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%%done:
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%endmacro
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%endif ; GOT_SYMBOL == _MACHO_PIC_ ----------------
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%imacro pushpic 1.nolist
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push %1
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%endmacro
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%imacro poppic 1.nolist
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pop %1
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%endmacro
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%imacro movpic 2.nolist
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mov %1,%2
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%endmacro
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%else ; !PIC -----------------------------------------
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%define GOTOFF(got,sym) (sym)
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%imacro get_GOT 1.nolist
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%endmacro
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%imacro pushpic 1.nolist
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%endmacro
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%imacro poppic 1.nolist
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%endmacro
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%imacro movpic 2.nolist
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%endmacro
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%endif ; PIC -----------------------------------------
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; --------------------------------------------------------------------------
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; Align the next instruction on {2,4,8,16,..}-byte boundary.
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; ".balign n,,m" in GNU as
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;
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%define MSKLE(x,y) (~(((y) & 0xFFFF) - ((x) & 0xFFFF)) >> 16)
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%define FILLB(b,n) (($$-(b)) & ((n)-1))
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%imacro alignx 1-2.nolist 0xFFFF
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%%bs: times MSKLE(FILLB(%%bs,%1),%2) & MSKLE(16,FILLB($,%1)) & FILLB($,%1) \
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db 0x90 ; nop
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times MSKLE(FILLB(%%bs,%1),%2) & FILLB($,%1)/9 \
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db 0x8D,0x9C,0x23,0x00,0x00,0x00,0x00 ; lea ebx,[ebx+0x00000000]
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times MSKLE(FILLB(%%bs,%1),%2) & FILLB($,%1)/7 \
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db 0x8D,0xAC,0x25,0x00,0x00,0x00,0x00 ; lea ebp,[ebp+0x00000000]
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times MSKLE(FILLB(%%bs,%1),%2) & FILLB($,%1)/6 \
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db 0x8D,0xAD,0x00,0x00,0x00,0x00 ; lea ebp,[ebp+0x00000000]
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times MSKLE(FILLB(%%bs,%1),%2) & FILLB($,%1)/4 \
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db 0x8D,0x6C,0x25,0x00 ; lea ebp,[ebp+0x00]
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times MSKLE(FILLB(%%bs,%1),%2) & FILLB($,%1)/3 \
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db 0x8D,0x6D,0x00 ; lea ebp,[ebp+0x00]
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times MSKLE(FILLB(%%bs,%1),%2) & FILLB($,%1)/2 \
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db 0x8B,0xED ; mov ebp,ebp
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times MSKLE(FILLB(%%bs,%1),%2) & FILLB($,%1)/1 \
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db 0x90 ; nop
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%endmacro
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; Align the next data on {2,4,8,16,..}-byte boundary.
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;
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%imacro alignz 1.nolist
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align %1, db 0 ; filling zeros
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%endmacro
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%ifdef __x86_64__
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%ifdef WIN64
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%imacro collect_args 0
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push r12
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push r13
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push r14
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push r15
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mov r10, rcx
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mov r11, rdx
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mov r12, r8
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mov r13, r9
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mov r14, [rax+48]
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mov r15, [rax+56]
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push rsi
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push rdi
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sub rsp, SIZEOF_XMMWORD
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movaps XMMWORD [rsp], xmm6
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sub rsp, SIZEOF_XMMWORD
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movaps XMMWORD [rsp], xmm7
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%endmacro
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%imacro uncollect_args 0
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movaps xmm7, XMMWORD [rsp]
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add rsp, SIZEOF_XMMWORD
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movaps xmm6, XMMWORD [rsp]
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add rsp, SIZEOF_XMMWORD
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pop rdi
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pop rsi
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pop r15
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pop r14
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pop r13
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pop r12
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%endmacro
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%else
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%imacro collect_args 0
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push r10
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push r11
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push r12
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push r13
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push r14
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push r15
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mov r10, rdi
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mov r11, rsi
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mov r12, rdx
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mov r13, rcx
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mov r14, r8
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mov r15, r9
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%endmacro
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%imacro uncollect_args 0
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pop r15
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pop r14
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pop r13
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pop r12
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pop r11
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pop r10
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%endmacro
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%endif
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%endif
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; --------------------------------------------------------------------------
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; Defines picked up from the C headers
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;
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%include "jsimdcfg.inc"
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; --------------------------------------------------------------------------
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