[Piglit] libepoxy conversion v2

[Jordan Justen]

On Fri, Mar 7, 2014 at 9:12 PM, Eric Anholt <eric at anholt.net> wrote:
> Jose Fonseca <jfonseca at vmware.com> writes:
>
>> ----- Original Message -----
>>> On Wed, Feb 26, 2014 at 10:30 AM, Ken Phillis Jr <kphillisjr at gmail.com>
>>> wrote:
>>> >
>>> > On Feb 25, 2014 3:45 PM, Brian Paul wrote:
>>> >> I haven't had time to look at these changes, nor libepoxy.  But it's
>>> >> critical to us that piglit continues to work on Windows.
>>> >>
>>> > I just checked libepoxy against MSVC2010 and it is a total mess. I
>>> > recommend
>>> > a rewrite since proper windows support depends on properly supporting the
>>> > Visual Studio.
>>>
>>> Is this feedback based on trying to build libepoxy with VS2010, or
>>> trying to build piglit with VS2010 with Eric's released libepoxy
>>> binaries?
>>
>> I only noticed this thread now.
>>
>> Where are these libepoxy windows binaries? I searched piglit archives
>> but couldn't find them.
>
> In the release:
>
> https://github.com/anholt/libepoxy/releases
>
> (epoxy-1.1-win32.zip)
>
>> The thing with Windows binaries is that only .h + .dll (dynamic libs)
>> are portable.  .h + .lib (static libraries) end up being tied to the
>> particular MSVC compiler version and build type
>
> Here's what's in the 1.1 tarball:
>
> /home/anholt/epoxy-1.1-win32
> /home/anholt/epoxy-1.1-win32/win64
> /home/anholt/epoxy-1.1-win32/win64/lib
> /home/anholt/epoxy-1.1-win32/win64/lib/libepoxy.dll.a
> /home/anholt/epoxy-1.1-win32/win64/lib/pkgconfig
> /home/anholt/epoxy-1.1-win32/win64/lib/pkgconfig/epoxy.pc
> /home/anholt/epoxy-1.1-win32/win64/lib/libepoxy.la
> /home/anholt/epoxy-1.1-win32/win64/bin
> /home/anholt/epoxy-1.1-win32/win64/bin/libepoxy-0.dll
> /home/anholt/epoxy-1.1-win32/include
> /home/anholt/epoxy-1.1-win32/include/epoxy
> /home/anholt/epoxy-1.1-win32/include/epoxy/gl_generated.h
> /home/anholt/epoxy-1.1-win32/include/epoxy/gl.h
> /home/anholt/epoxy-1.1-win32/win32
> /home/anholt/epoxy-1.1-win32/win32/lib
> /home/anholt/epoxy-1.1-win32/win32/lib/libepoxy.dll.a
> /home/anholt/epoxy-1.1-win32/win32/lib/pkgconfig
> /home/anholt/epoxy-1.1-win32/win32/lib/pkgconfig/epoxy.pc
> /home/anholt/epoxy-1.1-win32/win32/lib/libepoxy.la
> /home/anholt/epoxy-1.1-win32/win32/bin
> /home/anholt/epoxy-1.1-win32/win32/bin/libepoxy-0.dll
>
> I'm really interested in seeing if you can make use of the releases.

I setup a functioning piglit build on Windows with MSVC. (Yea, such fun!)

I then tried building your branch using the libepoxy binaries. I found
2 main issues.

1. pkg-config dependency added to piglit for libepoxy. I think I have
a patch for this.
2. gl_generated.h has compilation issues with MSVC. (Of course...)

For 2, I guess Ken Phillis Jr. may have some (rough?) libepoxy patches.

-Jordan