Mercurial > sdl-ios-xcode
annotate include/SDL_mouse.h @ 1157:baf35853ad54
Date: Mon, 10 Oct 2005 13:09:32 +0300
From: Tommi Kyntola <tommi.kyntola@ray.fi>
To: sdl@libsdl.org
Subject: [SDL] [RFC] get_ticks broken on linux
It uses gettimeofday to calculate the timedifference.
Gettimeofday returns current time which is seldom monotonous.
This breaks SDL timer subsystem. (time callbacks and all that
get borked when the time difference ms is suddenly ~ 2^32)
I posted a message about this earlier but got no response.
Some thoughts on this matter would be appreciated.
(Or even an explanation for the lack of interest.)
A patch below would use the posix timers that have been around
since posix 93 and do provide a good source of monotonous time
on linux boxes (and on few others too).
The following patch is also availabe at:
http://www.hut.fi/u/tkyntola/SDL-1.2.9-clockfix.patch
It's against 1.2.9, but I can easily rediffit against
the cvs branch is needed.
cheers,
Tommi Kyntola tommi.kyntola@ray.fi
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Tue, 11 Oct 2005 18:16:12 +0000 |
| parents | f09d5edfc7a3 |
| children | c9b51268668f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2004 (Happy New Year!)
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* Include file for SDL mouse event handling */ | |
| 29 | |
| 30 #ifndef _SDL_mouse_h | |
| 31 #define _SDL_mouse_h | |
| 32 | |
| 33 #include "SDL_types.h" | |
| 34 #include "SDL_video.h" | |
| 35 | |
| 36 #include "begin_code.h" | |
| 37 /* Set up for C function definitions, even when using C++ */ | |
| 38 #ifdef __cplusplus | |
| 39 extern "C" { | |
| 40 #endif | |
| 41 | |
| 42 typedef struct WMcursor WMcursor; /* Implementation dependent */ | |
|
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Date: Mon, 3 May 2004 03:15:01 +0100
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43 typedef struct SDL_Cursor { |
| 0 | 44 SDL_Rect area; /* The area of the mouse cursor */ |
| 45 Sint16 hot_x, hot_y; /* The "tip" of the cursor */ | |
| 46 Uint8 *data; /* B/W cursor data */ | |
| 47 Uint8 *mask; /* B/W cursor mask */ | |
| 48 Uint8 *save[2]; /* Place to save cursor area */ | |
| 49 WMcursor *wm_cursor; /* Window-manager cursor */ | |
| 50 } SDL_Cursor; | |
| 51 | |
| 52 /* Function prototypes */ | |
| 53 /* | |
| 54 * Retrieve the current state of the mouse. | |
| 55 * The current button state is returned as a button bitmask, which can | |
| 56 * be tested using the SDL_BUTTON(X) macros, and x and y are set to the | |
| 57 * current mouse cursor position. You can pass NULL for either x or y. | |
| 58 */ | |
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59 extern DECLSPEC Uint8 SDLCALL SDL_GetMouseState(int *x, int *y); |
| 0 | 60 |
| 61 /* | |
| 62 * Retrieve the current state of the mouse. | |
| 63 * The current button state is returned as a button bitmask, which can | |
| 64 * be tested using the SDL_BUTTON(X) macros, and x and y are set to the | |
| 65 * mouse deltas since the last call to SDL_GetRelativeMouseState(). | |
| 66 */ | |
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67 extern DECLSPEC Uint8 SDLCALL SDL_GetRelativeMouseState(int *x, int *y); |
| 0 | 68 |
| 69 /* | |
| 70 * Set the position of the mouse cursor (generates a mouse motion event) | |
| 71 */ | |
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72 extern DECLSPEC void SDLCALL SDL_WarpMouse(Uint16 x, Uint16 y); |
| 0 | 73 |
| 74 /* | |
| 75 * Create a cursor using the specified data and mask (in MSB format). | |
| 76 * The cursor width must be a multiple of 8 bits. | |
| 77 * | |
| 78 * The cursor is created in black and white according to the following: | |
| 79 * data mask resulting pixel on screen | |
| 80 * 0 1 White | |
| 81 * 1 1 Black | |
| 82 * 0 0 Transparent | |
| 83 * 1 0 Inverted color if possible, black if not. | |
| 84 * | |
| 85 * Cursors created with this function must be freed with SDL_FreeCursor(). | |
| 86 */ | |
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87 extern DECLSPEC SDL_Cursor * SDLCALL SDL_CreateCursor |
| 0 | 88 (Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y); |
| 89 | |
| 90 /* | |
| 91 * Set the currently active cursor to the specified one. | |
| 92 * If the cursor is currently visible, the change will be immediately | |
| 93 * represented on the display. | |
| 94 */ | |
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95 extern DECLSPEC void SDLCALL SDL_SetCursor(SDL_Cursor *cursor); |
| 0 | 96 |
| 97 /* | |
| 98 * Returns the currently active cursor. | |
| 99 */ | |
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100 extern DECLSPEC SDL_Cursor * SDLCALL SDL_GetCursor(void); |
| 0 | 101 |
| 102 /* | |
| 103 * Deallocates a cursor created with SDL_CreateCursor(). | |
| 104 */ | |
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105 extern DECLSPEC void SDLCALL SDL_FreeCursor(SDL_Cursor *cursor); |
| 0 | 106 |
| 107 /* | |
| 108 * Toggle whether or not the cursor is shown on the screen. | |
| 109 * The cursor start off displayed, but can be turned off. | |
| 110 * SDL_ShowCursor() returns 1 if the cursor was being displayed | |
| 111 * before the call, or 0 if it was not. You can query the current | |
| 112 * state by passing a 'toggle' value of -1. | |
| 113 */ | |
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114 extern DECLSPEC int SDLCALL SDL_ShowCursor(int toggle); |
| 0 | 115 |
| 116 /* Used as a mask when testing buttons in buttonstate | |
| 117 Button 1: Left mouse button | |
| 118 Button 2: Middle mouse button | |
| 119 Button 3: Right mouse button | |
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120 Button 4: Mouse wheel up (may also be a real button) |
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121 Button 5: Mouse wheel down (may also be a real button) |
| 0 | 122 */ |
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123 #define SDL_BUTTON(X) (SDL_PRESSED << ((X)-1)) |
| 0 | 124 #define SDL_BUTTON_LEFT 1 |
| 125 #define SDL_BUTTON_MIDDLE 2 | |
| 126 #define SDL_BUTTON_RIGHT 3 | |
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127 #define SDL_BUTTON_WHEELUP 4 |
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128 #define SDL_BUTTON_WHEELDOWN 5 |
| 0 | 129 #define SDL_BUTTON_LMASK SDL_BUTTON(SDL_BUTTON_LEFT) |
| 130 #define SDL_BUTTON_MMASK SDL_BUTTON(SDL_BUTTON_MIDDLE) | |
| 131 #define SDL_BUTTON_RMASK SDL_BUTTON(SDL_BUTTON_RIGHT) | |
| 132 | |
| 133 | |
| 134 /* Ends C function definitions when using C++ */ | |
| 135 #ifdef __cplusplus | |
| 136 } | |
| 137 #endif | |
| 138 #include "close_code.h" | |
| 139 | |
| 140 #endif /* _SDL_mouse_h */ |