diff -r 51a74ef9ed63 -r ae94777fff8f Symbian3/SDK/Source/GUID-04D917A1-E1A0-5149-9660-80A1146D0984.dita --- a/Symbian3/SDK/Source/GUID-04D917A1-E1A0-5149-9660-80A1146D0984.dita Wed Mar 31 11:11:55 2010 +0100 +++ b/Symbian3/SDK/Source/GUID-04D917A1-E1A0-5149-9660-80A1146D0984.dita Fri Jun 11 12:39:03 2010 +0100 @@ -1,59 +1,59 @@ - - - - - -OpenGLES -Collection OverviewOpenGL ES is a cross-platform API for 2D and 3D graphics on embedded -systems. It consists of a subset of desktop OpenGL, which is a widely adopted -2D and 3D graphics API, creating a low-level interface between software and -graphics acceleration. OpenGL ES includes profiles for floating-point and -fixed-point systems and the EGL specification for portably binding to native -windowing systems. -

Variant: ScreenPlay and non-ScreenPlay.

-

The Symbian platform supports two versions of OpenGL ES:

- -

OpenGL ES is an open standard developed by the Khronos Group (www.khronos.org).

-

The following diagram shows the direct use of OpenGL ES by an application -through the public OpenGL ES interface together with EGL. On the Symbian platform, -both OpenGL ES and EGL have a component (shown in blue) that declares the -interface, and both require an implementation that implements that interface -(shown in green).

- - OpenGLES component relationships - - -

It is possible for the OpenGL ES and EGL implementations to communicate -through a private interface that is not standardized by Symbian.

- -
-OpenGLES -Collection -EGL - Collection + + + + + +OpenGLES +Collection OverviewOpenGL ES is a cross-platform API for 2D and 3D graphics on embedded +systems. It consists of a subset of desktop OpenGL, which is a widely adopted +2D and 3D graphics API, creating a low-level interface between software and +graphics acceleration. OpenGL ES includes profiles for floating-point and +fixed-point systems and the EGL specification for portably binding to native +windowing systems. +

Variant: ScreenPlay and non-ScreenPlay.

+

The Symbian platform supports two versions of OpenGL ES:

+
    +
  • OpenGL ES 1.X, which +is for fixed function hardware and offers acceleration, image quality and +performance.

  • +
  • OpenGL ES 2.X, which +is for programmable hardware and enables fully programmable 3D graphics and +shader objects.

  • +
+

OpenGL ES is an open standard developed by the Khronos Group (www.khronos.org).

+

The following diagram shows the direct use of OpenGL ES by an application +through the public OpenGL ES interface together with EGL. On the Symbian platform, +both OpenGL ES and EGL have a component (shown in blue) that declares the +interface, and both require an implementation that implements that interface +(shown in green).

+ + OpenGLES component relationships + + +

It is possible for the OpenGL ES and EGL implementations to communicate +through a private interface that is not standardized by Symbian.

+
    +
  • The OpenGLES +Interface component provides a consistent interface to OpenGL ES on +the Symbian platform, enabling cross-device compatibility. The component includes +the Khronos-released header files (which incorporate some minor changes, such +as in-source comments). It also provides some Symbian-specific header files +and LIB, DEF and MMP files and UIDs. It does not provide any implementations +of the APIs.

  • +
  • EGL is +an interface between rendering APIs such as OpenGL ES or OpenVG and an underlying +native platform window system.

  • + +
+
+OpenGLES +Collection +EGL + Collection
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