OpenGL ES Libraries - Revision history

imported_>amigadave: redirect to OpenGL-ES after merge

2010-04-21T14:42:56Z

redirect to OpenGL-ES after merge

imported_>amigadave: links

2010-04-21T13:46:07Z

links

← Older revision		Revision as of 13:46, 21 April 2010
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	[[Category:Development]]		[[Category:Development]]
	Want to start developing for the Nokia N900 using OpenGL ES but don't know where to start?		Want to start developing for the [[Nokia N900]] using [[OpenGL-ES\|OpenGL ES]] but don't know where to start?

	Here is some information about the various libraries and APIs that are available on the N900. Also included is information about developing with OpenGL ES and some examples.		Here is some information about the various libraries and APIs that are available on the N900. Also included is information about developing with OpenGL ES and some examples.

imported_>amigadave: /* Resources */ wikify links

2010-04-21T13:29:12Z

Resources: wikify links

← Older revision		Revision as of 13:29, 21 April 2010
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	*http://www.unrealvoodoo.org/hiteck/projects/maemo/ - Maemo Experiments		*http://www.unrealvoodoo.org/hiteck/projects/maemo/ - Maemo Experiments
	*http://qt.gitorious.org/qt/qt/trees/4.5/examples/opengl/hellogl_es2 - hellogl_es2 example for Qt 4.5		*http://qt.gitorious.org/qt/qt/trees/4.5/examples/opengl/hellogl_es2 - hellogl_es2 example for Qt 4.5
	*~~http://wiki.maemo.org/~~OpenGL-ES - OpenGL ES page on the maemo wiki with useful information		*[[OpenGL-ES]] - OpenGL ES page on the maemo wiki with useful information
	*http://www.imgtec.com/powervr/insider/sdk/KhronosOpenGLES2xSGX.asp - Khronos OpenGL ES 2.0 SDK has useful examples		*http://www.imgtec.com/powervr/insider/sdk/KhronosOpenGLES2xSGX.asp - Khronos OpenGL ES 2.0 SDK has useful examples
	*http://talk.maemo.org/showthread.php?t=37356 - Thread discussing performance of OpenGL ES		*http://talk.maemo.org/showthread.php?t=37356 - Thread discussing performance of OpenGL ES
	*~~http://wiki.maemo.org/~~Game_development - Page describing game development on Maemo. More oriented towards 2D games but has some useful information.		*[[Game_development]] - Page describing game development on Maemo. More oriented towards 2D games but has some useful information.
	*http://www.forum.nokia.com/info/sw.nokia.com/id/0ea5ec64-2d35-4363-94c0-dd2560c6524b/Get_started_with_Maemo_5.html - If you don't know how to start with Maemo development in general then look here.		*http://www.forum.nokia.com/info/sw.nokia.com/id/0ea5ec64-2d35-4363-94c0-dd2560c6524b/Get_started_with_Maemo_5.html - If you don't know how to start with Maemo development in general then look here.
	*http://repository.maemo.org/ - Information about repositories		*http://repository.maemo.org/ - Information about repositories

imported_>javispedro at 16:35, 4 April 2010

2010-04-04T16:35:27Z

← Older revision		Revision as of 16:35, 4 April 2010
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	This section includes a partial list of library options for using OpenGL ES.		This section includes a partial list of library options for using OpenGL ES.

	=== SDL 1.2 ===		=== SDL 1.2 + SDL-GLES ===

	The N900 ships with SDL 1.2. You can use that and a external library, [[User:Javispedro/SDL-GLES\|SDL-GLES]] (available in extras), to create simple OpenGL ES 1.1 and 2.0 applications.		The N900 ships with SDL 1.2. You can use that and a external library, [[User:Javispedro/SDL-GLES\|SDL-GLES]] (available in extras), to create simple OpenGL ES 1.1 and 2.0 applications.

imported_>javispedro: added sdl-gles

2010-04-04T16:35:07Z

added sdl-gles

← Older revision		Revision as of 16:35, 4 April 2010
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	This section includes a partial list of library options for using OpenGL ES.		This section includes a partial list of library options for using OpenGL ES.

	=== SDL ===		=== SDL 1.2 ===

	~~Apparently~~ SDL 1.3 supports OpenGL ES 1.x ~~(unsure about OpenGL ES 2~~.~~0 support)~~.		The N900 ships with SDL 1.2. You can use that and a external library, [[User:Javispedro/SDL-GLES\|SDL-GLES]] (available in extras), to create simple OpenGL ES 1.1 and 2.0 applications.

			=== SDL 1.3 ===

			SDL 1.3 supports OpenGL ES 1.x. This doesn't seem to work in the N900 as of now.

	=== OpenGL ES 1.x utilies ===		=== OpenGL ES 1.x utilies ===
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	* WARNING: If you try to run an OpenGL application with scratchbox then it will most likely work. This is because it uses the native operating system OpenGL libraries to execute. However, if you try and run it on the device it will not work as it only has OpenGL ES libraries.		* WARNING: If you try to run an OpenGL application with scratchbox then it will most likely work. This is because it uses the native operating system OpenGL libraries to execute. However, if you try and run it on the device it will not work as it only has OpenGL ES libraries.

	* OpenGL ES doesn't run natively on a desktop computer. It is possible to get some kind of emulation library from the PowerVR Insider SDK [http://www.imgtec.com/powervr/insider/powervr-sdk.asp] so that you can test on a desktop computer. The OpenGL\|ES 2.0 emulation library was packaged for use inside the FREMANTLE_X86 scratchbox target (package libgles2-dev, extras-devel non-free repository).		* OpenGL ES doesn't run natively on a desktop computer. It is possible to get some kind of emulation library from the PowerVR Insider SDK [http://www.imgtec.com/powervr/insider/powervr-sdk.asp] so that you can test on a desktop computer. The OpenGL ES 2.0 emulation library was packaged for use inside the FREMANTLE_X86 scratchbox target (package libgles2-dev, extras-devel non-free repository).

	* OpenGL ES 1.x and OpenGL ES 2.x are also different. OpenGL ES 1.x has a fixed pipeline whereas OpenGL ES 2.x uses shaders. The matrix stack has also been removed and you have to manage it yourself.		* OpenGL ES 1.x and OpenGL ES 2.x are also different. OpenGL ES 1.x has a fixed pipeline whereas OpenGL ES 2.x uses shaders. The matrix stack has also been removed and you have to manage it yourself.

imported_>javispedro: No longer need to enter non-composited mode, removing (as it was causing confusion)

2010-03-02T17:34:03Z

No longer need to enter non-composited mode, removing (as it was causing confusion)

← Older revision		Revision as of 17:34, 2 March 2010
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	=== Xlib (X11) ===		=== Xlib (X11) ===

	You can use Xlib (X11) and ~~utilise~~ the EGL library for context creation along with OpenGL ES. This is what the [http://maemo.nokia.com/maemo-select/applications/bounce-evolution Bounce Evolution] game uses.		You can use Xlib (X11) and utilize the EGL library for context creation along with OpenGL ES. This is what the [http://maemo.nokia.com/maemo-select/applications/bounce-evolution Bounce Evolution] game uses.

	You can use OpenGL ES version 1 or 2 directly without worrying about the version that is supported by the library.		You can use OpenGL ES version 1 or 2 directly without worrying about the version that is supported by the library.
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	== Notes ==		== Notes ==

	* When you create a X11 window the hildon compositor should be disabled. This can be done by setting the property _HILDON_NON_COMPOSITED_WINDOW. See the example Xlib application below.

	* OpenGL and OpenGL ES are very different and are not compatible.		* OpenGL and OpenGL ES are very different and are not compatible.
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	* WARNING: If you try to run an OpenGL application with scratchbox then it will most likely work. This is because it uses the native operating system OpenGL libraries to execute. However, if you try and run it on the device it will not work as it only has OpenGL ES libraries.		* WARNING: If you try to run an OpenGL application with scratchbox then it will most likely work. This is because it uses the native operating system OpenGL libraries to execute. However, if you try and run it on the device it will not work as it only has OpenGL ES libraries.

	* ~~WARNING:~~ OpenGL ES doesn't run natively on a desktop computer. It is possible to get some kind of emulation library from the ~~Khronos OpenGL ES 2~~.~~0 SDK~~ so that you can test on a desktop computer.		* OpenGL ES doesn't run natively on a desktop computer. It is possible to get some kind of emulation library from the PowerVR Insider SDK [http://www.imgtec.com/powervr/insider/powervr-sdk.asp] so that you can test on a desktop computer. The OpenGL\|ES 2.0 emulation library was packaged for use inside the FREMANTLE_X86 scratchbox target (package libgles2-dev, extras-devel non-free repository).

	* OpenGL ES 1.x and OpenGL ES 2.x are also different. OpenGL ES 1.x has a fixed pipeline whereas OpenGL ES 2.x uses shaders. The matrix stack has also been removed and you have to manage it yourself.		* OpenGL ES 1.x and OpenGL ES 2.x are also different. OpenGL ES 1.x has a fixed pipeline whereas OpenGL ES 2.x uses shaders. The matrix stack has also been removed and you have to manage it yourself.

	~~=== Killing hildon ===~~		* If you require any kind of performance in Maemo 5, you need to make your window full screen.

	~~This doesn't~~ need to ~~be done anymore if the _HILDON_NON_COMPOSITED_WINDOW attribute is set~~. ~~This is included for reference.~~

	~~You can kill the hildon window manager with:~~
	~~dsmetool -k /usr/bin/hildon-desktop~~
	~~Restore with:~~
	~~dsmetool -t /usr/bin/hildon-desktop~~

	== Installation and Examples ==		== Installation and Examples ==

imported_>dneary: /* Xlib Examples */

2010-02-02T17:12:12Z

Xlib Examples

← Older revision		Revision as of 17:12, 2 February 2010
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	In the PowerVR SDK TrainingCourse directory there are a number of examples. The first two use only Xlib. The rest make use of PowerVR libraries which have to be linked in with the program.		In the PowerVR SDK TrainingCourse directory there are a number of examples. The first two use only Xlib. The rest make use of PowerVR libraries which have to be linked in with the program.

	~~There~~ is a nice simple example ~~at the [http://talk.maemo.org/showthread.php?t=37356 Maemo Talk page~~]~~. You can download it from:~~		Here is a nice [[SimpleGL example \| simple example]] (created by [http://talk.maemo.org/member.php?u=28583 exoticorn])
	~~: http://exoticorn.de/simpleglv2.tgz~~ (created by [http://talk.maemo.org/member.php?u=28583 exoticorn])

	== Resources ==		== Resources ==

imported_>skyostil: /* Resources */

2010-01-12T21:05:13Z

Resources

← Older revision		Revision as of 21:05, 12 January 2010
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	Here are some useful resources.		Here are some useful resources.

	*http://www.unrealvoodoo.org/hiteck/projects/maemo/ - Maemo Experiments ~~(NOTE: Links to the git repositories are broken. You can find them at http://www.unrealvoodoo.org/git/)~~		*http://www.unrealvoodoo.org/hiteck/projects/maemo/ - Maemo Experiments
	*http://qt.gitorious.org/qt/qt/trees/4.5/examples/opengl/hellogl_es2 - hellogl_es2 example for Qt 4.5		*http://qt.gitorious.org/qt/qt/trees/4.5/examples/opengl/hellogl_es2 - hellogl_es2 example for Qt 4.5
	*http://wiki.maemo.org/OpenGL-ES - OpenGL ES page on the maemo wiki with useful information		*http://wiki.maemo.org/OpenGL-ES - OpenGL ES page on the maemo wiki with useful information

imported_>mr_smiley at 01:00, 23 December 2009

2009-12-23T01:00:37Z

← Older revision		Revision as of 01:00, 23 December 2009
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	This example shows how to use OpenGL ES embedded in a QtWidget.		This example shows how to use OpenGL ES embedded in a QtWidget.

	~~=== PySide ===~~

	~~PySide provides Python bindings for Qt 4. It also supports OpenGL ES.~~

	=== Clutter ===		=== Clutter ===

imported_>mr_smiley at 00:18, 23 December 2009

2009-12-23T00:18:17Z

← Older revision		Revision as of 00:18, 23 December 2009
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	This example shows how to use OpenGL ES embedded in a QtWidget.		This example shows how to use OpenGL ES embedded in a QtWidget.

			=== PySide ===

			PySide provides Python bindings for Qt 4. It also supports OpenGL ES.

	=== Clutter ===		=== Clutter ===