[webkit-dev] WebGL :: Win32 => build successful and rendering assumed so => but white page

Hugo Machefer hugo.machefer at gmail.com
Thu Oct 3 23:20:18 PDT 2013

All right, Brent:

I just migrated my MS VStudio 2010 environment from AppleWin to WinCairo
Release  =>  WebGL content is rendered correctly.
But not  http://www.webkit.org/blog-files/3d-transforms/poster-circle.html any
more however. Which appears "flat" from now own :

[image: Inline image 3]Looking like a regression, you confirm ? I mean;
this test POSTER CIRCLE  was rendered perfectly , through previous mode
Here enclosed is one screenshot of how WinLauncher displays this content
with "perspecytive-broken" effect.
Best Regards.


On Thu, Oct 3, 2013 at 10:58 PM, Brent Fulgham <bfulgham at apple.com> wrote:

> Hi Hugo,
> I think most of us in the WebKit project are aware of the missing pieces
> on the Apple Windows port, and have plans to rectify this.
> However, I don’t understand what your needs are regarding WebGL and the
> Apple Windows port. This port is not licensed for use outside of Apple’s
> own products, and only exists as a mechanism for outside developers to
> debug problems and run early-warning builds of our current sources.
> If you would like to embed a Windows version of WebKit for use in your own
> software, I would suggest using the WinCairo port, which seeks to be
> feature-compatible with the Apple Windows port.  An added bonus is that
> WebGL *already exists and works* in this port.
> Alex Christensen has been working to further expand the WinCairo port, and
> often hangs out on our IRC channel.
> Thanks,
> -Brent
> On Oct 3, 2013, at 1:49 PM, Hugo Machefer <hugo.machefer at gmail.com> wrote:
> Thanks a lot Timothy. For some: part of my job might consist in doing this
> work  -*for Windows*-  required to actually display the result. Then,
> assuming <WebKit-r156532> compiles and runs WebGL content succesfully  *for
> Mac  *(probably provided some settings :  'defaults write
> com.apple.Safari WebKitWebGLEnabled -bool YES'  specified from the
> terminal) would that be a good approach, according to you, to watch
> step-by-step what happens across Mac OS, by using efficient debugger, and
> report what is missing   -*for Windows*-   ? To fill the gap...
> Do you or anyone assess this analogy to mimic behaviours around OpenGLES2
> from Mac OS X to WIN32 (involving Angle in-the-middle ;-) ?
> PS: again, sorry for any piece of naivety or groundless indolence in my
> analysis: these technical areas turn out to be new to me.
> On Thu, Oct 3, 2013 at 6:15 PM, Tim Horton <timothy_horton at apple.com>wrote:
>> On 2013.10.03, at 09:06, Hugo Machefer <hugo.machefer at gmail.com> wrote:
>> Dear all. Might not the best place  -here-  to describe my issue [Win32],
>> but I don't know where exactly this shall be submitted, as a novice by
>> WebKit. To recap, I managed to compile <WebKit-r156532> sources by
>> Microsoft Visual Studio 2010 using CoreGraphics (ie without Cairo) in Debug
>> mode. To activate WebGL, additionally, I have set:
>> The AppleWin port (the one you describe) does not currently support
>> WebGL. Much of the underlying mechanism is implemented, but there’s still
>> some work required to actually display the result.
>>  *#define ENABLE_WEBGL 1
>> **#define WTF_USE_3D_GRAPHICS 1
>> **#define WTF_USE_OPENGL 1
>> **#define WTF_USE_OPENGL_ES_2 1
>> **#define WTF_USE_EGL 1
>> I hope/guess this is the right approach => could anyone confirm ? Then
>> LINK turns out to be "fortunate", by adding these libraries : translator_common.lib;
>> libEGL.lib; libGLESv2.lib; preprocessor.lib; translator_glsl.lib;
>> translator_hlsl.lib to WebKit sub-project.
>> However, execution fails by http://get.webgl.org. Indeed, HTML content
>> pretends :
>> *Your browser supports WebGL*
>> However: a blank area is displayed in place of expected movic 3D based
>> cube...
>> Apologize in case this concern forsooth comes to break any rule by
>> lists.webkit.org , due to Windows matters...
>> _______________________________________________
>> webkit-dev mailing list
>> webkit-dev at lists.webkit.org
>> https://lists.webkit.org/mailman/listinfo/webkit-dev
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