view docs/html/sdlquitevent.html @ 3335:b8d313de8a65

Adam Strzelecki to SDL Since current DirectFB implementation is incomplete for YUV surfaces (actually causes segmentation faults when trying Lock and use YUV planar textures) I decided to fix it a bit. Here's a patch that should make DirectFB properly support YUV both packed and planar (3 planes). (1) Removed SDL_BYTESPERPIXEL at all in favor of DFB_BYTES_PER_PIXEL(SDLToDFBPixelFormat(fmt)) which does return always proper BPP for YUVs too, coz SDL_BYTESPERPIXEL returns incorrect values for FOURCCs (2) Fixed data->pixels allocation for planar YUVs in CreateTexture, it should allocate 150% more space (3) Copy other planes for planar YUVs in UpdateTexture (4) Moved checking if format is supported at all with DirectFB on CreateTexture at the beginning of the code Waiting for comments, -- Adam Strzelecki | nanoant.com
author Sam Lantinga <slouken@libsdl.org>
date Sun, 04 Oct 2009 04:03:37 +0000
parents 355632dca928
children
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>SDL_QuitEvent</H1
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><H2
>Name</H2
>SDL_QuitEvent&nbsp;--&nbsp;Quit requested event</DIV
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>Structure Definition</H2
><PRE
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>typedef struct{
  Uint8 type
} SDL_QuitEvent;</PRE
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>Structure Data</H2
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>SDL_QUIT</TT
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>Description</H2
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>SDL_QuitEvent</SPAN
> is a member of the <A
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>SDL_Event</SPAN
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> union and is used whan an event of type <TT
CLASS="LITERAL"
>SDL_QUIT</TT
> is reported.</P
><P
>As can be seen, the SDL_QuitEvent structure serves no useful purpose. The event itself, on the other hand, is very important. If you filter out or ignore a quit event then it is impossible for the user to close the window. On the other hand, if you do accept a quit event then the application window will be closed, and screen updates will still report success event though the application will no longer be visible.</P
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><B
>Note: </B
>The macro <TT
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>SDL_QuitRequested</TT
> will return non-zero if a quit event is pending</P
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