view docs/html/general.html @ 886:05c551e5bc64

Date: Sat, 24 Apr 2004 15:13:32 +0300 From: "Mike Gorchak" Subject: SDL updates for the QNX6 1. Updated the README.QNX 2. Updated libtool scripts, which are shipped with SDL for QNX6 support. 3. Added some code to support the new QNX 6.3.0, which is in beta now. 4. Added code to detect the hw features, which driver supports. 5. Added hw alpha blits code. 6. Fixed bug when application switches to fullscreen more the 2 times. (afte\ r that window becames always stay on top). 7. Updated a bit README for the tests. 8. Added information about acceleration show in the testalpha.c test. 9. Added small fixes to the testoverlay2.c test. 10. Added alpha and cc+alpha blits benchmarks to the testvidinfo.c test.
author Sam Lantinga <slouken@libsdl.org>
date Thu, 06 May 2004 15:55:06 +0000
parents 355632dca928
children
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>Chapter 5. General</H1
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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
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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
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>SDL_WasInit</A
>&nbsp;--&nbsp;Check which subsystems are initialized</DT
><DT
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>SDL_GetError</A
>&nbsp;--&nbsp;Get SDL error string</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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>SDL_Init</TT
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>. <TT
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>SDL_Init</TT
> initializes all the subsystems that the user requests (video, audio, joystick, timers and/or cdrom). Once SDL is initialized with <TT
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>SDL_Init</TT
> subsystems can be shut down and initialized as needed using <A
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>SDL_InitSubSystem</TT
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> and <A
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>.</P
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>SDL must also be shut down before the program exits to make sure it cleans up correctly. Calling <A
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> shuts down all subsystems and frees any resources allocated to SDL.</P
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