Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_Surface.3 @ 937:1e6366bde299
Date: Tue, 27 Jul 2004 17:14:00 +0200
From: "Eckhard Stolberg"
Subject: Controller names in SDL for Windows
I'm working on an Atari 2600 emulator for different systems that uses
the SDL. Some time ago someone created an adaptor that lets you use
your old Atari controllers with your computer through the USB port.
Some of the Atari controllers require special handling by the emulator,
so it would be nice, if it would be possible to detect if any of the
controllers connected to the computer is this adaptor.
SDL would allow that with the SDL_JoystickName function, but unfortunately
it doesn't work properly on Windows. On Linux and MacOSX this function
returns the name of the controller, but on Windows you'll only get the
name of the joystick driver. Most joysticks nowadays use the generic
Microsoft driver, so they all return the same name.
In an old MSDN article
(http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/dnarinput/html/msdn_extdirect.asp)
Microsoft describes how to read out the OEM controller names from the registry.
I have implemented this for the SDL controller handler on Windows,
and now reading the joystick name works properly there too.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 21 Aug 2004 03:45:58 +0000 |
parents | e5bc29de3f0a |
children | 546f7c1eb755 |
rev | line source |
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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 */ | |
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19 |
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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 | |
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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 | |
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96 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |