OpenGL + Mesa 3D + MinGW [英] OpenGL + Mesa 3D + MinGW
问题描述
我在(Ubuntu)Linux上对C ++应用程序进行编程，然后将它们编译为2个操作系统:通过使用"g ++"(GNU C ++编译器)在 Linux 上进行本机处理，并将它们交叉编译为 Windows 通过使用"i386-mingw32-g ++"(MinGW C ++交叉编译器).
I program C++ applications on (Ubuntu) Linux and compile them to 2 operating systems: natively to Linux by using "g++" (GNU C++ compiler) and cross-compile them to Windows by using "i386-mingw32-g++" (MinGW C++ cross-compiler).
现在，我正在尝试交叉编译"OpenGL"应用程序(从Linux到Windows)-为此，我需要一些OpenGL库文件.
作为OpenGL的实现，我使用"Mesa 3D"开源库.幸运的是，Ubuntu为Linux提供了预编译"的mesa3d库( libgl1-mesa-dev 和 libglu1-mesa-dev )，但是不幸的是，没有任何预编译的库可供使用使用MinGW交叉编译器(因此是Windows版本)-因此，我必须"从源代码"手动编译它们(可以从
Now, I am trying to cross-compile "OpenGL" applications (from Linux to Windows) - for that I need some OpenGL library files.
As an implementation of OpenGL, I use "Mesa 3D" open source library. Fortunately, Ubuntu offers "precompiled" mesa3d libraries (libgl1-mesa-dev and libglu1-mesa-dev) for Linux, but unfortunately, there are not any precompiled libraries for using with MinGW cross-compiler (thus Windows versions of them) - so I "MUST" manually compile them "from source" (which can be downloaded from http://www.mesa3d.org homepage).
但是我不知道要这样做.在mesa3d源代码中，有一些文档说明如何为某些特定平台构建库-特别是有"README.MINGW32"自述文件.
但是只是在第一行上就有一些命令
But I have no idea to do that. Within the mesa3d source code, there are some documents how to build the libraries for some specific platforms - specifically there is "README.MINGW32" readme file.
But just on the first lines there is some command
mingw32-make -f Makefile.mgw [OPTIONS...]
我没有安装任何"mingw32-make"程序，因此无法运行.通过其他软件，我曾经使用经典"来构建它们
which I cannot run because I don't have any "mingw32-make" program installed. By other softwares, I used to build them with the "classic"
./configure -> make -> make install
过程，但这不适用于mesa3d库.
例如，我也尝试过
procedure, but this is not working on mesa3d libraries.
For example, I have also tried
./configure --host=i386-mingw32
它已经配置好，但是在键入后
and it has been configured ok but after typing
make
它抛出了一些错误
error: #error No PIPE_SUBSYSTEM_WINDOWS_xxx subsystem defined.
现在我迷失了:-(.
那么有人知道如何构建将它们与mingw32结合使用的mesa3d库吗?
So does anybody know how to build the mesa3d libraries for using them with mingw32?
P.S.:当然，我不想使用Microsoft Visual Studio从来没有更多:-).我也想做所有必要的事情，以从Linux建立OpenGL环境并使用mingw32进行交叉编译.我希望有可能.
P.S.: And of course, I DON'T WANT to use Microsoft Visual Studio NEVER MORE :-) . And also I would like to do all the required things to build up OpenGL environment from Linux and using mingw32 for cross-compiling. I hope it is possible.
PS2:在 http://www.mesa3d.org/systems上.html 页中写道，"MinGW与Mesa 3D结合使用已被弃用".我正以正确的方式使用它吗?
P.S.2: On http://www.mesa3d.org/systems.html page there is written that using MinGW with Mesa 3D is "deprecated". I am on the right way to use it just that way?
推荐答案
无需为MinGW编译Mesa3D. MinGW包括GL库；它不被称为libGL.a或libGLU.a；这些库分别称为libopengl32.a和libglu32.a.可悲的是，这就是Microsoft决定在Visual Studio的Windows下将它们称为它们"的原因，因此Windows和MinGW的GNU/Linux版本都决定包含上述命名的库.
There is no need to compile Mesa3D for MinGW. MinGW includes the GL library; it's just not called libGL.a nor libGLU.a; the libraries are instead called libopengl32.a and libglu32.a. Sadly, this is what Microsoft decided to call them under Windows on Visual Studio, so both Windows and GNU/Linux release of MinGW decided to include the libraries named as above.
因此，在Windows交叉编译时，只需更改:
So, when cross compiling for Windows, just change:
-lGL -lGLU
进入
-lopengl32 -lglu32
GNU/Linux上的
Mesa3D实际上是OpenGL的 lib 实现的名称.这是因为OpenGL是商标，并且SGI的政策不允许任何人在不支付巨额费用的情况下使用该名称.尽管如此，SGI还是为作者Brian Paul提供了测试套件的副本.
Mesa3D on GNU/Linux is actually a name for a libre implementation of OpenGL. This is because OpenGL is a trademark, and SGI's policy did not allow for anyone to use the name without paying a hefty sum of money. Despite this, SGI provided the author, Brian Paul, a copy of the testing suite.
Mesa3D在大多数具有本机OpenGL实现的平台上都被称为软件健全性检查"库，它具有许多仅用于高端硬件的功能的仿真.但是在GNU/Linux上，更重要的是称为DRI或直接渲染接口的东西.这是真正的交易，包括硬件加速和所有方面.该库也称为Mesa3D.实际上，为DRI进行配置是Mesa3D以及X11和内核的一部分.
Mesa3D is on most platforms with native OpenGL implementation known as a software "sanity check" library with emulation of numerous high-end-hardware-only features. But on GNU/Linux, much more important is something called DRI or direct rendering interface. This is the real deal, the hardware acceleration and all. This library is also called Mesa3D; in fact, provisioning for DRI is a part of Mesa3D as well as of X11 and the kernel.
Mesa3D在GNU/Linux和其他免费平台上提供了 libre 兼容OpenGL的标头.
Mesa3D provides libre OpenGL-compatible headers on GNU/Linux and other free platforms.
摘要::Mesa3D是OpenGL的GNU/Linux实现的名称，因为该名称是商标.该库包括出色，功能强大，正确且相对较快的软件实现.它还包括用于硬件加速的直接渲染界面.
Summary: Mesa3D is the name for the GNU/Linux implementation of OpenGL since that name is trademarked. This library includes an excellent, featureful, correct and relatively fast software implementation. It also includes direct rendering interface for hardware acceleration.
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