如何在 Windows 平台下编译 libjpeg-mmx 库？

dj0379 2007-03-03 02:41:47

最近在做JPEG的解码，用的是Independent JPEG Group的libjpeg库，版本为6b。原版的libjpeg库在windows上用"nmake -f makefile.vc"命令行方式已经编译并良好的使用了。只是为了提高libjpeg库的性能，我又到网上下了一个libjpeg-mmx的库，这个库是libjpeg的MMX指令优化后的库，这个库我在红帽Linux上编译通过并生成了libjpeg-mmx.a文件，但在windows上却无法用makefile或自建的VC工程编译通过。我也用IntelC++Compiler9.0编译过原版库，但没有明显的性能提升。
我想问的是：有没有那位大侠可以提供在windows上可以编译过的libjpeg-mmx库，或者MinGW 等 gcc for windows 的编译方法能把我手头的libjpeg-mmx库在windows上编译通过？
万分感谢！高分相赠！

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dj0379 2007-10-12

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挺麻烦的又没有高手解决了的呢？贡献下能在VC 6.0下直接编译通过的源代码就太感谢了。

roger_77 2007-04-13

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mmx.h文件中的long long类型VC没定义

typedef union {
long long q; /* Quadword (64-bit) value */
unsigned long long uq; /* Unsigned Quadword */
int d[2]; /* 2 Doubleword (32-bit) values */
unsigned int ud[2]; /* 2 Unsigned Doubleword */
short w[4]; /* 4 Word (16-bit) values */
unsigned short uw[4]; /* 4 Unsigned Word */
char b[8]; /* 8 Byte (8-bit) values */
unsigned char ub[8]; /* 8 Unsigned Byte */
float s[2]; /* Single-precision (32-bit) value */
} ATTR_ALIGN(8) mmx_t; /* On an 8-byte (64-bit) boundary */

Wolf0403 2007-04-12

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这个库我在红帽Linux上编译通过并生成了libjpeg-mmx.a文件，但在windows上却无法用makefile或自建的VC工程编译通过。

难道内嵌汇编是 gas 格式的？

yeifengyei 2007-04-12

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应该可能的，不过你要把C的那些库文件的路径给他，就可以编的，我就是这样编译通过的。

jixingzhong 2007-03-10

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使用 makefile.vc 编译后不能使用么？

jixingzhong 2007-03-10

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如果不是必要，
建议使用 Dev C++ 就是了 ...

jixingzhong 2007-03-10

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但在windows上却无法用makefile或自建的VC工程编译通过
＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
建立的工程，
编译提示是什么？

所有需要的文件都添加了么？

libjepg-turbo + jnigraphics 介绍翻译一下官网的描述 libjpeg-turbo是一种jpeg图像编解码器，它使用Simd指令（mmx，sse2，avx2，neon，altivec）加速x86，x86-64，ARM和PowerPC系统上的基线JPEG（标准型）压缩和解压缩，以及x86和x86-64系统上的渐进式渐进JPEG（渐进式）压缩。在这些系统中，libjpeg-turbo的速度通常是libjpeg的2-6倍，其他的都是相同的。在其他类型的系统上，libjpeg-turbo由于其高度优化的哈夫曼编码例程，仍然可以在很大程度上超过libjpeg。在许多情况下，libjpeg-turbo的性能与专有的高速JPEG编码解码器的性能相当。 libjpeg-turbo最初基于libjpeg / simd，这是Miyasaka Masaru开发的libjpeg v6b

libjpeg-turbo是对libjpeg的扩展，支持SIMD指令，如X86架构的MMX、SSE、SSE2、3DNOW，ARM架构的NEON，在对jpeg进行编码和解码的过程中能提高速度。附件中包含JpegJpegTurbo源码及编译过后的头文件和库，可直接使用压缩原始数据到JPEG；源码可使用CMAKE重新编译自己需要的库。

Building on: linux-g++ (x86_64, CPU features: mmx sse sse2) Building for: linux-aarch64-gnu-g++ (arm64, CPU features: neon) Target compiler: gcc 6.3.1 Configuration: cross_compile use_gold_linker compile_examples enable_new_dtags largefile neon precompile_header shared rpath release c++11 c++14 concurrent dbus reduce_exports stl Build options: Mode ................................... release Optimize release build for size ........ no Building shared libraries .............. yes Using C standard ....................... C11 Using C++ standard ..................... C++14 Using ccache ........................... no Using gold linker ...................... yes Using new DTAGS ........................ yes Using precompiled headers .............. yes Using LTCG ............................. no Target compiler supports: NEON ................................. yes Build parts ............................ libs Qt modules and options: Qt Concurrent .......................... yes Qt D-Bus ............................... yes Qt D-Bus directly linked to libdbus .... no Qt Gui ................................. yes Qt Network ............................. yes Qt Sql ................................. yes Qt Testlib ............................. yes Qt Widgets ............................. yes Qt Xml ................................. yes Support enabled for: Using pkg-config ....................... yes udev ................................... no Using system zlib ...................... yes Qt Core: DoubleConversion ....................... yes Using system DoubleConversion ........ no GLib ................................... no iconv .................................. yes ICU .................................... no Tracing backend ........................ Logging backends: journald ............................. no syslog ............................... no slog2 ................................ no Using system PCRE2 ..................... no Qt Network: getifaddrs() ........................... yes IPv6 ifname ............................ yes libproxy ............................... no Linux AF_NETLINK ....................... yes OpenSSL ................................ yes Qt directly linked to OpenSSL ........ no OpenSSL 1.1 ............................ no DTLS ................................... yes SCTP ................................... no Use system proxies ..................... yes Qt Gui: Accessibility .......................... yes FreeType ............................... yes Using system FreeType ................ no HarfBuzz ............................... yes Using system HarfBuzz ................ no Fontconfig ............................. no Image formats: GIF .................................. yes ICO .................................. yes JPEG ................................. yes Using system libjpeg ............... yes PNG .................................. yes Using system libpng ................ no EGL .................................... no OpenVG ................................. no OpenGL: Desktop OpenGL ....................... no OpenGL ES 2.0 ........................ no OpenGL ES 3.0 ........................ no OpenGL ES 3.1 ........................ no OpenGL ES 3.2 ........................ no Vulkan ................................. no Session Management ..................... yes Features used by QPA backends: evdev .................................. yes libinput ............................... no INTEGRITY HID .......................... no mtdev .................................. no tslib .................................. no xkbcommon .............................. no X11 specific: XLib ................................. no EGL on X11 ........................... no QPA backends: DirectFB ............................... no EGLFS .................................. no LinuxFB ................................ yes VNC .................................... yes Mir client ............................. no Qt Sql: SQL item models ........................ yes Qt Widgets: GTK+ ................................... no Styles ................................. Fusion Windows Qt PrintSupport: CUPS ................................... no Qt Sql Drivers: DB2 (IBM) .............................. no InterBase .............................. no MySql .................................. no OCI (Oracle) ........................... no ODBC ................................... no PostgreSQL ............................. no SQLite2 ................................ no SQLite ................................. yes Using system provided SQLite ......... no TDS (Sybase) ........................... no Qt Testlib: Tester for item models ................. yes Qt SerialBus: Socket CAN ............................. yes Socket CAN FD .......................... yes Qt QML: QML network support .................... yes QML debugging and profiling support .... yes QML sequence object .................... yes QML list model ......................... yes QML XML http request ................... yes QML Locale ............................. yes QML delegate model ..................... yes Qt Quick: Direct3D 12 ............................ no AnimatedImage item ..................... yes Canvas item ............................ yes Support for Qt Quick Designer .......... yes Flipable item .......................... yes GridView item .......................... yes ListView item .......................... yes TableView item ......................... yes Path support ........................... yes PathView item .......................... yes Positioner items ....................... yes Repeater item .......................... yes ShaderEffect item ...................... yes Sprite item ............................ yes Qt Scxml: ECMAScript data model for QtScxml ...... yes Qt Gamepad: SDL2 ................................... no Qt 3D: Assimp ................................. yes System Assimp .......................... no Output Qt3D Job traces ................. no Output Qt3D GL traces .................. no Use SSE2 instructions .................. no Use AVX2 instructions .................. no Aspects: Render aspect ........................ yes Input aspect ......................... yes Logic aspect ......................... yes Animation aspect ..................... yes Extras aspect ........................ yes Qt 3D Renderers: OpenGL Renderer ........................ yes Qt 3D GeometryLoaders: Autodesk FBX ........................... no Qt Wayland Client ........................ no Qt Wayland Compositor .................... no Qt Bluetooth: BlueZ .................................. no BlueZ Low Energy ....................... no Linux Crypto API ....................... no WinRT Bluetooth API (desktop & UWP) .... no Qt Sensors: sensorfw ............................... no Qt Quick Controls 2: Styles ................................. Default Fusion Imagine Material Universal Qt Quick Templates 2: Hover support .......................... yes Multi-touch support .................... yes Qt Positioning: Gypsy GPS Daemon ....................... no WinRT Geolocation API .................. no Qt Location: Qt.labs.location experimental QML plugin . yes Geoservice plugins: OpenStreetMap ........................ yes HERE ................................. yes Esri ................................. yes Mapbox ............................... yes MapboxGL ............................. no Itemsoverlay ......................... yes QtXmlPatterns: XML schema support ..................... yes Qt Multimedia: ALSA ................................... no GStreamer 1.0 .......................... no GStreamer 0.10 ......................... no Video for Linux ........................ yes OpenAL ................................. no PulseAudio ............................. no Resource Policy (libresourceqt5) ....... no Windows Audio Services ................. no DirectShow ............................. no Windows Media Foundation ............... no Qt Tools: QDoc ................................... no Qt WebEngine: Embedded build ......................... yes Pepper Plugins ......................... no Printing and PDF ....................... no Proprietary Codecs ..................... no Spellchecker ........................... yes Native Spellchecker .................... no WebRTC ................................. no Use System Ninja ....................... no Geolocation ............................ yes WebChannel support ..................... yes Use v8 snapshot ........................ yes Kerberos Authentication ................ no Building v8 snapshot supported ......... yes Use ALSA ............................... no Use PulseAudio ......................... no Optional system libraries used: re2 .................................. no icu .................................. no libwebp, libwebpmux and libwebpdemux . no opus ................................. no ffmpeg ............................... no libvpx ............................... no snappy ............................... no glib ................................. no zlib ................................. yes minizip .............................. no libevent ............................. no jsoncpp .............................. no protobuf ............................. no libxml2 and libxslt .................. no lcms2 ................................ no png .................................. no JPEG ................................. no harfbuzz ............................. no freetype ............................. no x11 .................................. no Required system libraries: fontconfig ........................... no dbus ................................. no nss .................................. no khr .................................. no glibc ................................ yes Required system libraries for qpa-xcb: libdrm ............................... no xcomposite ........................... no xcursor .............................. no xi ................................... no xrandr ............................... no xtst ................................. no Note: Also available for Linux: linux-clang linux-icc

最近的工作需要读写jpeg图像,网上找了半天，发现libjpeg-turbo是个不错的选择。 ibjpeg-turbo是与libjpeg接口兼容的一个jpeg编/解码库，其主要的特点就是利用SIMD指令(如X86架构的MMX/SSE/SSE2，ARM架构的NEON)来加速jpeg图像的编/解码，相比被广泛使用libjpeg，编码和解码性能提高2~4倍左右。下面是其官网的说明： libjpeg-

目录libjpeg-turbo简介交叉编译opencv遇到的坑 opencv库中自带了对JPEG的编解码，其内部实质上是基于第三方库libjpeg进行解码的。但是libjpeg本身的性能并不是很快，特别是在ARM平台下。 libjpeg-turbo简介 libjpeg-turbo是一个使用SIMD技术(MMX、SSE2、AVX2、NEON)进行加速的JPEG编码解码器，能够在基于x86、x86_...

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