Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_GLattr.3 @ 1584:b786d9c15e42
Fixed bug #61
Date: Mon, 24 Feb 2003 13:35:11 +0800
From: "Leonidas"
Subject: [SDL] Re: Trigger mouse wheel event -- not in X-environment
I have looked into the codes for the IMPS/2 mouse wheel mode of fbcon driver.
But I found something weird.
Here's the original codes to set a mouse device into IMPS/2 mode in libSDL.
In the file src/video/fbcon/SDL_fbevents.c
In function static int set_imps2_mode(int fd)
...
Uint8 set_imps2[] = {0xf3, 200, 0xf3, 100, 0xf3, 80};
Uint8 reset = 0xff;
fd_set fdset;
struct timeval tv;
int retval = 0;
// Set mouse device fd into IMPS/2 mode
if ( write(fd, &set_imps2, sizeof(set_imps2)) == sizeof(set_imps2) ) {
// ??? then RESET it..???
if (write(fd, &reset, sizeof (reset)) == sizeof (reset) ) {
retval = 1;
}
}
...........
Since it sets IMPS/2 mode then reset it, so you will never get a mouse into
IMPS/2 mode to use its wheel.
What I did to make the wheel usable is remove the RESET codes.
....
if ( write(fd, &set_imps2, sizeof(set_imps2)) == sizeof(set_imps2) ) {
/*
if (write(fd, &reset, sizeof (reset)) == sizeof (reset) ) {
}
*/
retval = 1;
}
....
And in FB_OpenMouse(_THIS)
Make the device /dev/psaux to be setted into imps2 mode such that it can be
detected its a imps/2 mouse or not.
(my mouse device is on ps2, but the codes only set /dev/input/mice device
originally)
Then I have done, I can use the mouse wheel when SDL uses frame buff driver.
I dont exactly know I did right or wrong, I just change it for my usuage.
Correct me please, if I did something wrong.
Best regards,
Li Tsung Lin
IAP Product Dept. Engineer
EeRise Corp. (Image Processing System, Computer Vision System)
Hsin Tien, Taipei Hsien, Taiwan, R.O.C.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 22 Mar 2006 07:22:40 +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_GLattr" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
| 3 SDL_GLattr\- SDL GL Attributes | |
| 4 .SH "ATTRIBUTES" | |
| 5 .TP 20 | |
| 6 \fBSDL_GL_RED_SIZE\fP | |
| 7 Size of the framebuffer red component, in bits | |
| 8 .TP 20 | |
| 9 \fBSDL_GL_GREEN_SIZE\fP | |
| 10 Size of the framebuffer green component, in bits | |
| 11 .TP 20 | |
| 12 \fBSDL_GL_BLUE_SIZE\fP | |
| 13 Size of the framebuffer blue component, in bits | |
| 14 .TP 20 | |
| 15 \fBSDL_GL_ALPHA_SIZE\fP | |
| 16 Size of the framebuffer alpha component, in bits | |
| 17 .TP 20 | |
| 18 \fBSDL_GL_DOUBLEBUFFER\fP | |
| 19 0 or 1, enable or disable double buffering | |
| 20 .TP 20 | |
| 21 \fBSDL_GL_BUFFER_SIZE\fP | |
| 22 Size of the framebuffer, in bits | |
| 23 .TP 20 | |
| 24 \fBSDL_GL_DEPTH_SIZE\fP | |
| 25 Size of the depth buffer, in bits | |
| 26 .TP 20 | |
| 27 \fBSDL_GL_STENCIL_SIZE\fP | |
| 28 Size of the stencil buffer, in bits | |
| 29 .TP 20 | |
| 30 \fBSDL_GL_ACCUM_RED_SIZE\fP | |
| 31 Size of the accumulation buffer red component, in bits | |
| 32 .TP 20 | |
| 33 \fBSDL_GL_ACCUM_GREEN_SIZE\fP | |
| 34 Size of the accumulation buffer green component, in bits | |
| 35 .TP 20 | |
| 36 \fBSDL_GL_ACCUM_BLUE_SIZE\fP | |
| 37 Size of the accumulation buffer blue component, in bits | |
| 38 .TP 20 | |
| 39 \fBSDL_GL_ACCUM_ALPHA_SIZE\fP | |
| 40 Size of the accumulation buffer alpha component, in bits | |
| 41 .SH "DESCRIPTION" | |
| 42 .PP | |
| 43 While you can set most OpenGL attributes normally, the attributes list above must be known \fIbefore\fP SDL sets the video mode\&. These attributes a set and read with \fI\fBSDL_GL_SetAttribute\fP\fR and \fI\fBSDL_GL_GetAttribute\fP\fR\&. | |
| 44 .SH "SEE ALSO" | |
| 45 .PP | |
| 46 \fI\fBSDL_GL_SetAttribute\fP\fR, \fI\fBSDL_GL_GetAttribute\fP\fR | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
47 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |