Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_VideoInfo.3 @ 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 | 546f7c1eb755 |
| children | 1238da4a7112 |
| rev | line source |
|---|---|
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Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
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1 .TH "SDL_VideoInfo" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
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2283
546f7c1eb755
Merged revision 3472 from SDL 1.2, fixing bug #493
Sam Lantinga <slouken@libsdl.org>
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3 SDL_VideoInfo \- Video Target information |
| 0 | 4 .SH "STRUCTURE DEFINITION" |
| 5 .PP | |
| 6 .nf | |
| 7 \f(CWtypedef struct{ | |
| 8 Uint32 hw_available:1; | |
| 9 Uint32 wm_available:1; | |
| 10 Uint32 blit_hw:1; | |
| 11 Uint32 blit_hw_CC:1; | |
| 12 Uint32 blit_hw_A:1; | |
| 13 Uint32 blit_sw:1; | |
| 14 Uint32 blit_sw_CC:1; | |
| 15 Uint32 blit_sw_A:1; | |
| 16 Uint32 blit_fill; | |
| 17 Uint32 video_mem; | |
| 18 SDL_PixelFormat *vfmt; | |
| 19 } SDL_VideoInfo;\fR | |
| 20 .fi | |
| 21 .PP | |
| 22 .SH "STRUCTURE DATA" | |
| 23 .TP 20 | |
| 24 \fBhw_available\fR | |
| 25 Is it possible to create hardware surfaces? | |
| 26 .TP 20 | |
| 27 \fBwm_available\fR | |
| 28 Is there a window manager available | |
| 29 .TP 20 | |
| 30 \fBblit_hw\fR | |
| 31 Are hardware to hardware blits accelerated? | |
| 32 .TP 20 | |
| 33 \fBblit_hw_CC\fR | |
| 34 Are hardware to hardware colorkey blits accelerated? | |
| 35 .TP 20 | |
| 36 \fBblit_hw_A\fR | |
| 37 Are hardware to hardware alpha blits accelerated? | |
| 38 .TP 20 | |
| 39 \fBblit_sw\fR | |
| 40 Are software to hardware blits accelerated? | |
| 41 .TP 20 | |
| 42 \fBblit_sw_CC\fR | |
| 43 Are software to hardware colorkey blits accelerated? | |
| 44 .TP 20 | |
| 45 \fBblit_sw_A\fR | |
| 46 Are software to hardware alpha blits accelerated? | |
| 47 .TP 20 | |
| 48 \fBblit_fill\fR | |
| 49 Are color fills accelerated? | |
| 50 .TP 20 | |
| 51 \fBvideo_mem\fR | |
| 52 Total amount of video memory in Kilobytes | |
| 53 .TP 20 | |
| 54 \fBvfmt\fR | |
| 55 \fIPixel format\fR of the video device | |
| 56 .SH "DESCRIPTION" | |
| 57 .PP | |
| 58 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\&. | |
| 59 .SH "SEE ALSO" | |
| 60 .PP | |
| 61 \fI\fBSDL_PixelFormat\fR\fR, \fI\fBSDL_GetVideoInfo\fP\fR | |
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Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
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62 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |