[meta-freescale] [meta-fsl-arm PATCH 8/8] qt4: Enable OpenGL ES2 support for i.MX6

[Eric Nelson]

Hi all,

On 07/17/2013 11:17 AM, Otavio Salvador wrote:
> The Vivante libraries need some special linking as it has a more
> modular design which thus require a specific set of mkspec changes to
> make it to work. This change makes the linking to work when building
> against Vivante libraries for i.MX6 SoCs.
>
 >
 > <snip>
 >
> diff --git a/recipes-qt/qt4/qt4-x11-free_4.8.5.bbappend b/recipes-qt/qt4/qt4-x11-free_4.8.5.bbappend
> index 74bfb31..4c4d0c9 100644
> --- a/recipes-qt/qt4/qt4-x11-free_4.8.5.bbappend
> +++ b/recipes-qt/qt4/qt4-x11-free_4.8.5.bbappend
> @@ -9,6 +9,7 @@ PACKAGE_ARCH_mx5 = "${MACHINE_ARCH}"
>   QT_GLFLAGS_mx5 = "-opengl es2 -openvg"
>   QT_CONFIG_FLAGS_append_mx5 = " -I${STAGING_KERNEL_DIR}/include/"
>
> -DEPENDS_append_mx6 = " virtual/kernel"
> +DEPENDS_append_mx6 = " virtual/kernel virtual/libgles2"
>   PACKAGE_ARCH_mx6 = "${MACHINE_ARCH}"
> -QT_CONFIG_FLAGS_append_mx6 = " -I${STAGING_KERNEL_DIR}/include/"
> +QT_GLFLAGS_mx6 = "-opengl es2 -openvg"
> +QT_CONFIG_FLAGS_append_mx6 = " -I${STAGING_KERNEL_DIR}/include/ -DLINUX=1 -DEGL_API_FB=1"
> diff --git a/recipes-qt/qt4/qt4/mx6/g++.conf b/recipes-qt/qt4/qt4/mx6/g++.conf

This patch seems to work perfectly for me, but I'm a bit confused
about what it actually enables in Qt.

Neither the QGLWidget examples like hellogl_es2 or the QML-based
shadereffects demos seem to run.

Is there a sample program that shows how to access OpenGL/ES from Qt?

I'm trying to grok what the glue between glimagesink and a Qt
application should look like.

Regards,


Eric