Mercurial > sdl-ios-xcode
view src/video/ps2gs/SDL_gsvideo.h @ 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 | d910939febfa |
| children | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2006 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #ifndef _SDL_gsvideo_h #define _SDL_gsvideo_h #include <sys/types.h> #include <termios.h> #include <linux/ps2/dev.h> #include <linux/ps2/gs.h> #include "SDL_mouse.h" #include "SDL_mutex.h" #include "../SDL_sysvideo.h" /* Hidden "this" pointer for the video functions */ #define _THIS SDL_VideoDevice *this /* Private display data */ struct SDL_PrivateVideoData { /* Gotta love that simple PS2 graphics interface. :) */ int console_fd; int memory_fd; struct ps2_screeninfo saved_vinfo; /* Ye olde linux keyboard code */ int current_vt; int saved_vt; int keyboard_fd; int saved_kbd_mode; struct termios saved_kbd_termios; /* Ye olde linux mouse code */ int mouse_fd; int cursor_drawn; /* The memory mapped DMA area and associated variables */ caddr_t mapped_mem; int pixels_len; int mapped_len; struct ps2_image screen_image; int screen_image_size; unsigned long long *head_tags_mem; unsigned long long *image_tags_mem; unsigned long long *tex_tags_mem; unsigned long long *scale_tags_mem; int dma_pending; }; /* Old variable names */ #define console_fd (this->hidden->console_fd) #define memory_fd (this->hidden->memory_fd) #define saved_vinfo (this->hidden->saved_vinfo) #define current_vt (this->hidden->current_vt) #define saved_vt (this->hidden->saved_vt) #define keyboard_fd (this->hidden->keyboard_fd) #define saved_kbd_mode (this->hidden->saved_kbd_mode) #define saved_kbd_termios (this->hidden->saved_kbd_termios) #define mouse_fd (this->hidden->mouse_fd) #define cursor_drawn (this->hidden->cursor_drawn) #define mapped_mem (this->hidden->mapped_mem) #define pixels_len (this->hidden->pixels_len) #define mapped_len (this->hidden->mapped_len) #define screen_image (this->hidden->screen_image) #define screen_image_size (this->hidden->screen_image_size) #define head_tags_mem (this->hidden->head_tags_mem) #define image_tags_mem (this->hidden->image_tags_mem) #define tex_tags_mem (this->hidden->tex_tags_mem) #define scale_tags_mem (this->hidden->scale_tags_mem) #define dma_pending (this->hidden->dma_pending) /* Shared between the mouse and video code for screen update scaling */ extern int scaleimage_nonblock(int fd, unsigned long long *tm, unsigned long long *sm); #endif /* _SDL_gsvideo_h */