Added support for OpenGL ES and UIKit Video Driver: - included SDL_renderer_gles.h - added UIKit Video driver bootstrap declaration - added property "retained_backing" to gl_config structure. Having retained backing means your video buffers can't be overwritten by other applications between drawing frames. By default, this is enabled. I wanted to give the option to disable this on iPhone because it increases performance greatly. - modified SDL_GetAttribute and SDL_SetAttribute function for OpenGL ES support. OpenGL ES does not have support for accumulation buffers, and is always double buffered, among other things.

.TH "SDL_UnlockYUVOverlay" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" +
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.SH "NAME"+
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SDL_UnlockYUVOverlay \- Unlock an overlay+
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.SH "SYNOPSIS"+
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.PP+
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\fB#include "SDL\&.h"+
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.sp+
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\fBvoid \fBSDL_UnlockYUVOverlay\fP\fR(\fBSDL_Overlay *overlay\fR);+
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.SH "DESCRIPTION"+
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.PP+
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The opposite to \fI\fBSDL_LockYUVOverlay\fP\fR\&. Unlocks a previously locked overlay\&. An overlay must be unlocked before it can be displayed\&.+
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.SH "SEE ALSO"+
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.PP+
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\fI\fBSDL_UnlockYUVOverlay\fP\fR, \fI\fBSDL_CreateYUVOverlay\fP\fR, \fI\fBSDL_Overlay\fR\fR+
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...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01+
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