source: trunk/doc/src/platforms/wince-opengl.qdoc@ 651

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/*!
    \page windowsce-opengl.html
    \title Qt for Windows CE and OpenGL ES
    \ingroup qtce
    \brief Information about support for OpenGL ES with Qt for Windows CE.

    \input platforms/emb-opengl.qdocinc

\section1 Using OpenGL with Qt for Windows CE
Qt for Windows CE uses EGL 1.1 to embed OpenGL ES windows within the
Windows CE window manager.

\section2 Configure

To configure Qt for Windows Mobile 5.0 and OpenGL ES Common Lite support
you can run \c{configure} like this:

    \snippet doc/src/snippets/code/doc_src_wince-opengl.qdoc 0

OpenGL ES includes profiles for floating-point and fixed-point arithmetic.
The floating point profile is called OpenGL ES CM (Common) and the
fixed-point profile is called OpenGL ES CL (Common Lite).

You can run \c{configure} with the \c{-opengl-es-cm} option for the Common
profile or \c{-opengl-es-cl} for the Common Lite profile. In both cases,
ensure that the \c{lib} and \c{includes} paths include the OpenGL ES
headers and libararies from your SDK. The OpenGL ES lib should be called
either \c{libGLES_CM.lib} for the Common profile or \c{libGLES_CL.lib} for
the Common Lite profile.

The distinction between the Common and Common Lite profiles is important,
because the Common Lite profile has less functionality and only supports a
fixed-point vertex format.

To start programming with Qt and OpenGL ES on Windows CE, you can start
with the \l{Hello GL ES Example}. This example shows how to use QGLWidget
and QGLPainter with OpenGL ES. It also provides some hints on how to port
OpenGL code to OpenGL ES.

\section2 Using OpenGL to Accelerate Normal 2D Painting

Qt provides QOpenGLPaintEngine, a subclass of QPaintEngine that translates
QPainter operations into OpenGL calls. This is especially convenient for
drawing text or QImage objects in an OpenGL ES context. For further
details, refer to the \l{Hello GL ES Example}.

*/