view docs/html/general.html @ 2429:2c55b72ba46e gsoc2008_iphone

testdyngles is exactly what it sounds like -- a version of testdyngl that uses OpenGL ES calls instead of OpenGL. Was necessary to create because glOrtho is called glOrthof in OpenGL ES, and OpenGL ES doesn't have glBegin() type semantics for specifying geometry.
author Holmes Futrell <hfutrell@umail.ucsb.edu>
date Fri, 15 Aug 2008 00:52:52 +0000
parents 355632dca928
children
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>Chapter 5. General</H1
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><B
>Table of Contents</B
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><DT
><A
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>SDL_Init</A
>&nbsp;--&nbsp;Initializes SDL</DT
><DT
><A
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>SDL_InitSubSystem</A
>&nbsp;--&nbsp;Initialize subsystems</DT
><DT
><A
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>SDL_QuitSubSystem</A
>&nbsp;--&nbsp;Shut down a subsystem</DT
><DT
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>SDL_Quit</A
>&nbsp;--&nbsp;Shut down SDL</DT
><DT
><A
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>SDL_WasInit</A
>&nbsp;--&nbsp;Check which subsystems are initialized</DT
><DT
><A
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>SDL_GetError</A
>&nbsp;--&nbsp;Get SDL error string</DT
><DT
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>SDL_envvars</A
>&nbsp;--&nbsp;SDL environment variables</DT
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><P
>Before SDL can be used in a program it must be initialized with <A
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><TT
CLASS="FUNCTION"
>SDL_Init</TT
></A
>. <TT
CLASS="FUNCTION"
>SDL_Init</TT
> initializes all the subsystems that the user requests (video, audio, joystick, timers and/or cdrom). Once SDL is initialized with <TT
CLASS="FUNCTION"
>SDL_Init</TT
> subsystems can be shut down and initialized as needed using <A
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><TT
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>SDL_InitSubSystem</TT
></A
> and <A
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><TT
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>SDL_QuitSubSystem</TT
></A
>.</P
><P
>SDL must also be shut down before the program exits to make sure it cleans up correctly. Calling <A
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>SDL_Quit</TT
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> shuts down all subsystems and frees any resources allocated to SDL.</P
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