Mercurial > sdl-ios-xcode

view docs/man3/SDL_VideoInfo.3 @ 3335:b8d313de8a65

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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 546f7c1eb755
children 1238da4a7112
line wrap: on
line source

.TH "SDL_VideoInfo" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_VideoInfo \- Video Target information
.SH "STRUCTURE DEFINITION"
.PP
.nf
\f(CWtypedef struct{
  Uint32 hw_available:1;
  Uint32 wm_available:1;
  Uint32 blit_hw:1;
  Uint32 blit_hw_CC:1;
  Uint32 blit_hw_A:1;
  Uint32 blit_sw:1;
  Uint32 blit_sw_CC:1;
  Uint32 blit_sw_A:1;
  Uint32 blit_fill;
  Uint32 video_mem;
  SDL_PixelFormat *vfmt;
} SDL_VideoInfo;\fR
.fi
.PP
.SH "STRUCTURE DATA"
.TP 20
\fBhw_available\fR
Is it possible to create hardware surfaces?
.TP 20
\fBwm_available\fR
Is there a window manager available
.TP 20
\fBblit_hw\fR
Are hardware to hardware blits accelerated?
.TP 20
\fBblit_hw_CC\fR
Are hardware to hardware colorkey blits accelerated?
.TP 20
\fBblit_hw_A\fR
Are hardware to hardware alpha blits accelerated?
.TP 20
\fBblit_sw\fR
Are software to hardware blits accelerated?
.TP 20
\fBblit_sw_CC\fR
Are software to hardware colorkey blits accelerated?
.TP 20
\fBblit_sw_A\fR
Are software to hardware alpha blits accelerated?
.TP 20
\fBblit_fill\fR
Are color fills accelerated?
.TP 20
\fBvideo_mem\fR
Total amount of video memory in Kilobytes
.TP 20
\fBvfmt\fR
\fIPixel format\fR of the video device
.SH "DESCRIPTION"
.PP
This (read-only) structure is returned by \fI\fBSDL_GetVideoInfo\fP\fR\&. It contains information on either the \&'best\&' available mode (if called before \fI\fBSDL_SetVideoMode\fP\fR) or the current video mode\&.
.SH "SEE ALSO"
.PP
\fI\fBSDL_PixelFormat\fR\fR, \fI\fBSDL_GetVideoInfo\fP\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01