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You can use SDL 1.2 and a small addon I made, SDL-GLES, to ease development of OpenGL ES (1.1 and 2.0) applications in Maemo.

== Get started ==

=== OpenGL ES 2.0 ===

# In any of the SDK targets, download and install SDL and SDL-GLES packages.
#: <code>fakeroot apt-get install libsdl-gles1.2-dev libsdl1.2-dev</code>
# If you are in the FREMANTLE_ARMEL target, install libgles2-sgx-img-dev (which contains the OpenGL ES 2.0 required libraries and headers)
#: <code>fakeroot apt-get install libgles2-sgx-img-dev</code>
# But if you are in the FREMANTLE_X86 target, install libgles2-dev instead (which contains the OpenGL ES 2.0 emulation libraries).
#: <code>fakeroot apt-get install libgles2-dev</code>
# Now to get a simple skeleton for your app. Download [http://git.maemo.org/git?p=sdlhildon;a=blob_plain;f=sdlgles/test/gles2.c;h=d13ee1ef5505af8ee51a68250f3016ea4ce5f5d3;hb=HEAD gles2.c] and put it in your working directory.
#: <code>wget "http://git.maemo.org/git?p=sdlhildon;a=blob_plain;f=sdlgles/test/gles2.c;h=d13ee1ef5505af8ee51a68250f3016ea4ce5f5d3" -O gles2.c</code>
#: ''Note that this is just a skeletion application; if you want samples, look at the nehegles package in extras.''
# Build gles2 with 
#: <code>gcc `sdl-config --cflags --libs` -o gles2 gles2.c -lSDL_gles -lEGL -lGLESv2</code>
# Now run it. Ensure the SDK interface is up (this is out of the scope for this little tutorial).
#: <code>./gles2</code>

=== OpenGL ES 1.1 ===

# In any of the SDK targets, download and install SDL and SDL-GLES packages.
#: <code>fakeroot apt-get install libsdl-gles1.2-dev libsdl1.2-dev</code>
# If you are in the FREMANTLE_ARMEL target, install libgles1-sgx-img-dev (which contains the OpenGL ES 1.1 required libraries and headers)
#: <code>fakeroot apt-get install libgles1-sgx-img-dev</code>
# But if you are in the FREMANTLE_X86 target, currently there's not an easy way to install the emulation 1.1 libraries and headers. You will need to get the N900 OpenGL ES 1.1 PowerVR Insider SDK from [http://www.imgtec.com/powervr/insider/sdkdownloads/index.asp#GLES1b Imagination], and install it. Note that you will need to unpack the library files on the usual paths manually.
# Now to get a simple skeleton for your app. Download [http://git.maemo.org/git?p=sdlhildon;a=blob_plain;f=sdlgles/test/gles1.c;h=0756be5b8979868a4a9ac4c3d8497e56b18bb276 gles1.c] and put it in your working directory.
#: <code>wget "http://git.maemo.org/git?p=sdlhildon;a=blob_plain;f=sdlgles/test/gles1.c;h=0756be5b8979868a4a9ac4c3d8497e56b18bb276" -O gles1.c</code>
#: ''Note that this is just a skeletion application; if you want samples, look at the nehegles package in extras.''
# Build gles1 with 
#: <code>gcc `sdl-config --cflags --libs` -o gles1 gles1.c -lSDL_gles -lEGL -lGLES_CM</code>
# Now run it. Ensure the SDK interface is up (this is out of the scope for this little tutorial).
#: <code>./gles1</code>

== In detail ==

== Questions & Answers ==

Feel free to edit here.

For the ES 2.0 example you wrote: "''Note that this is not a proper skeleton, work in progress''". What needs to be done to call it "proper"? --[[User:goshki|goshki]] 11:03, 8 March 2011 (UTC)

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@@ Line 40: / Line 40: @@
 Feel free to edit here.
-For the ES 2.0 example you wrote: "''Note that this is not a proper skeleton, work in progress''". What needs to be done to call it "proper"? --[[User:goshki|goshki]] 11:03, 8 March 2011 (UTC)
-Because it is mostly a test instead of a proper game skeleton, with the game logic -> render logic event loop, etc. The test is fine for learning how to initialize SDL_GLES but I would like something that also teaches a prospective developer general game development with SDL + OpenGL.
-However, harbaum has since contributed a lot of proper OpenGL ES 2.0 samples in his NeHeGLES package: http://maemo.org/downloads/product/Maemo5/nehegles/ .
+For the ES 2.0 example you wrote: "''Note that this is not a proper skeleton, work in progress''". What needs to be done to call it "proper"? --[[User:goshki|goshki]] 11:03, 8 March 2011 (UTC)
---[[User:javispedro|javispedro]] 13:40, 8 March 2011 (UTC)

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