Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_Surface.3 @ 1052:68f607298ca9
Some work on using accelerated alpha blits with hardware surfaces.
From Stephane Marchesin's fork, don't know who originally wrote it.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Sun, 17 Apr 2005 10:40:41 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
| rev | line source |
|---|---|
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
1 .TH "SDL_Surface" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
| 3 SDL_Surface\- Graphical Surface Structure | |
| 4 .SH "STRUCTURE DEFINITION" | |
| 5 .PP | |
| 6 .nf | |
| 7 \f(CWtypedef struct SDL_Surface { | |
| 8 Uint32 flags; /* Read-only */ | |
| 9 SDL_PixelFormat *format; /* Read-only */ | |
| 10 int w, h; /* Read-only */ | |
| 11 Uint16 pitch; /* Read-only */ | |
| 12 void *pixels; /* Read-write */ | |
| 13 | |
| 14 /* clipping information */ | |
| 15 SDL_Rect clip_rect; /* Read-only */ | |
| 16 | |
| 17 /* Reference count -- used when freeing surface */ | |
| 18 int refcount; /* Read-mostly */ | |
|
55
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
19 |
|
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
20 /* This structure also contains private fields not shown here */ |
| 0 | 21 } SDL_Surface;\fR |
| 22 .fi | |
| 23 .PP | |
| 24 .SH "STRUCTURE DATA" | |
| 25 .TP 20 | |
| 26 \fBflags\fR | |
| 27 Surface flags | |
| 28 .TP 20 | |
| 29 \fBformat\fR | |
| 30 Pixel \fIformat\fR | |
| 31 .TP 20 | |
| 32 \fBw, h\fR | |
| 33 Width and height of the surface | |
| 34 .TP 20 | |
| 35 \fBpitch\fR | |
| 36 Length of a surface scanline in bytes | |
| 37 .TP 20 | |
| 38 \fBpixels\fR | |
| 39 Pointer to the actual pixel data | |
| 40 .TP 20 | |
| 41 \fBclip_rect\fR | |
| 42 surface clip \fIrectangle\fR | |
| 43 .SH "DESCRIPTION" | |
| 44 .PP | |
| 45 \fBSDL_Surface\fR\&'s represent areas of "graphical" memory, memory that can be drawn to\&. The video framebuffer is returned as a \fBSDL_Surface\fR by \fI\fBSDL_SetVideoMode\fP\fR and \fI\fBSDL_GetVideoSurface\fP\fR\&. Most of the fields should be pretty obvious\&. \fBw\fR and \fBh\fR are the width and height of the surface in pixels\&. \fBpixels\fR is a pointer to the actual pixel data, the surface should be \fIlocked\fR before accessing this field\&. The \fBclip_rect\fR field is the clipping rectangle as set by \fI\fBSDL_SetClipRect\fP\fR\&. | |
| 46 .PP | |
| 47 The following are supported in the \fBflags\fR field\&. | |
| 48 .TP 20 | |
| 49 \fBSDL_SWSURFACE\fP | |
| 50 Surface is stored in system memory | |
| 51 .TP 20 | |
| 52 \fBSDL_HWSURFACE\fP | |
| 53 Surface is stored in video memory | |
| 54 .TP 20 | |
| 55 \fBSDL_ASYNCBLIT\fP | |
| 56 Surface uses asynchronous blits if possible | |
| 57 .TP 20 | |
| 58 \fBSDL_ANYFORMAT\fP | |
| 59 Allows any pixel-format (Display surface) | |
| 60 .TP 20 | |
| 61 \fBSDL_HWPALETTE\fP | |
| 62 Surface has exclusive palette | |
| 63 .TP 20 | |
| 64 \fBSDL_DOUBLEBUF\fP | |
| 65 Surface is double buffered (Display surface) | |
| 66 .TP 20 | |
| 67 \fBSDL_FULLSCREEN\fP | |
| 68 Surface is full screen (Display Surface) | |
| 69 .TP 20 | |
| 70 \fBSDL_OPENGL\fP | |
| 71 Surface has an OpenGL context (Display Surface) | |
| 72 .TP 20 | |
| 73 \fBSDL_OPENGLBLIT\fP | |
| 74 Surface supports OpenGL blitting (Display Surface) | |
| 75 .TP 20 | |
| 76 \fBSDL_RESIZABLE\fP | |
| 77 Surface is resizable (Display Surface) | |
| 78 .TP 20 | |
| 79 \fBSDL_HWACCEL\fP | |
| 80 Surface blit uses hardware acceleration | |
| 81 .TP 20 | |
|
55
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
82 \fBSDL_SRCCOLORKEY\fP |
| 0 | 83 Surface use colorkey blitting |
| 84 .TP 20 | |
| 85 \fBSDL_RLEACCEL\fP | |
| 86 Colorkey blitting is accelerated with RLE | |
| 87 .TP 20 | |
| 88 \fBSDL_SRCALPHA\fP | |
| 89 Surface blit uses alpha blending | |
| 90 .TP 20 | |
| 91 \fBSDL_PREALLOC\fP | |
| 92 Surface uses preallocated memory | |
| 93 .SH "SEE ALSO" | |
| 94 .PP | |
| 95 \fI\fBSDL_PixelFormat\fR\fR | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
96 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |