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1 | /* |
2 | * Copyright 2001,2002 Red Hat Inc., Durham, North Carolina. | |
3 | * | |
4 | * All Rights Reserved. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining | |
7 | * a copy of this software and associated documentation files (the | |
8 | * "Software"), to deal in the Software without restriction, including | |
9 | * without limitation on the rights to use, copy, modify, merge, | |
10 | * publish, distribute, sublicense, and/or sell copies of the Software, | |
11 | * and to permit persons to whom the Software is furnished to do so, | |
12 | * subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice (including the | |
15 | * next paragraph) shall be included in all copies or substantial | |
16 | * portions of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
19 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
21 | * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS | |
22 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
23 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
25 | * SOFTWARE. | |
26 | */ | |
27 | ||
28 | /* | |
29 | * Authors: | |
30 | * David H. Dawes <dawes@xfree86.org> | |
31 | * Kevin E. Martin <kem@redhat.com> | |
32 | * Rickard E. (Rik) Faith <faith@redhat.com> | |
33 | * | |
34 | */ | |
35 | ||
36 | /** \file | |
37 | * This file provides access to: | |
38 | * - global variables available to all hw/dmx routines, and | |
39 | * - enumerations and typedefs needed by input routines in hw/dmx (and | |
40 | * hw/dmx/input). | |
41 | * | |
42 | * The goal is that no files in hw/dmx should include header files from | |
43 | * hw/dmx/input -- the interface defined here should be the only | |
44 | * interface exported to the hw/dmx layer. \see input/dmxinputinit.c. | |
45 | */ | |
46 | ||
47 | #ifndef DMXINPUT_H | |
48 | #define DMXINPUT_H | |
49 | ||
50 | /** Maximum number of file descriptors for SIGIO handling */ | |
51 | #define DMX_MAX_SIGIO_FDS 4 | |
52 | ||
53 | struct _DMXInputInfo; | |
54 | ||
55 | /** Reason why window layout was updated. */ | |
56 | typedef enum { | |
57 | DMX_UPDATE_REALIZE, /**< Window realized */ | |
58 | DMX_UPDATE_UNREALIZE, /**< Window unrealized */ | |
59 | DMX_UPDATE_RESTACK, /**< Stacking order changed */ | |
60 | DMX_UPDATE_COPY, /**< Window copied */ | |
61 | DMX_UPDATE_RESIZE, /**< Window resized */ | |
62 | DMX_UPDATE_REPARENT /**< Window reparented */ | |
63 | } DMXUpdateType; | |
64 | ||
65 | typedef void (*ProcessInputEventsProc) (struct _DMXInputInfo *); | |
66 | typedef void (*UpdateWindowInfoProc) (struct _DMXInputInfo *, | |
67 | DMXUpdateType, WindowPtr); | |
68 | ||
69 | /** An opaque structure that is only exposed in the dmx/input layer. */ | |
70 | typedef struct _DMXLocalInputInfo *DMXLocalInputInfoPtr; | |
71 | ||
72 | /** State of the SIGIO engine */ | |
73 | typedef enum { | |
74 | DMX_NOSIGIO = 0, /**< Device does not use SIGIO at all. */ | |
75 | DMX_USESIGIO, /**< Device can use SIGIO, but is not | |
76 | * (e.g., because the VT is switch | |
77 | * away). */ | |
78 | DMX_ACTIVESIGIO /**< Device is currently using SIGIO. */ | |
79 | } dmxSigioState; | |
80 | ||
81 | /** DMXInputInfo is typedef'd in \a dmx.h so that all routines can have | |
82 | * access to the global pointers. However, the elements are only | |
83 | * available to input-related routines. */ | |
84 | struct _DMXInputInfo { | |
85 | const char *name; /**< Name of input display or device | |
86 | * (from command line or config | |
87 | * file) */ | |
88 | Bool freename; /**< If true, free name on destroy */ | |
89 | Bool detached; /**< If true, input screen is detached */ | |
90 | int inputIdx; /**< Index into #dmxInputs global */ | |
91 | int scrnIdx; /**< Index into #dmxScreens global */ | |
92 | Bool core; /**< If True, initialize these | |
93 | * devices as devices that send core | |
94 | * events */ | |
95 | Bool console; /**< True if console and backend | |
96 | * input share the same backend | |
97 | * display */ | |
98 | ||
99 | Bool windows; /**< True if window outlines are | |
100 | * draw in console */ | |
101 | ||
102 | ProcessInputEventsProc processInputEvents; | |
103 | UpdateWindowInfoProc updateWindowInfo; | |
104 | ||
105 | /* Local input information */ | |
106 | dmxSigioState sigioState; /**< Current stat */ | |
107 | int sigioFdCount; /**< Number of fds in use */ | |
108 | int sigioFd[DMX_MAX_SIGIO_FDS]; /**< List of fds */ | |
109 | Bool sigioAdded[DMX_MAX_SIGIO_FDS]; /**< Active fds */ | |
110 | ||
111 | /** True if a VT switch is pending, but has not yet happened. */ | |
112 | int vt_switch_pending; | |
113 | ||
114 | /** True if a VT switch has happened. */ | |
115 | int vt_switched; | |
116 | ||
117 | /** Number of devices handled in this _DMXInputInfo structure. */ | |
118 | int numDevs; | |
119 | ||
120 | /** List of actual input devices. Each _DMXInputInfo structure can | |
121 | * refer to more than one device. For example, the keyboard and the | |
122 | * pointer of a backend display; or all of the XInput extension | |
123 | * devices on a backend display. */ | |
124 | DMXLocalInputInfoPtr *devs; | |
125 | ||
126 | char *keycodes; /**< XKB keycodes from command line */ | |
127 | char *symbols; /**< XKB symbols from command line */ | |
128 | char *geometry; /**< XKB geometry from command line */ | |
129 | }; | |
130 | ||
131 | extern int dmxNumInputs; /**< Number of #dmxInputs */ | |
132 | extern DMXInputInfo *dmxInputs; /**< List of inputs */ | |
133 | ||
134 | extern void dmxInputInit(DMXInputInfo * dmxInput); | |
135 | extern void dmxInputReInit(DMXInputInfo * dmxInput); | |
136 | extern void dmxInputLateReInit(DMXInputInfo * dmxInput); | |
137 | extern void dmxInputFree(DMXInputInfo * dmxInput); | |
138 | extern void dmxInputLogDevices(void); | |
139 | extern void dmxUpdateWindowInfo(DMXUpdateType type, WindowPtr pWindow); | |
140 | ||
141 | /* These functions are defined in input/dmxeq.c */ | |
142 | extern void dmxeqSwitchScreen(DeviceIntPtr pDev, ScreenPtr pScreen, | |
143 | Bool fromDIX); | |
144 | ||
145 | /* This type is used in input/dmxevents.c. Also, these functions are | |
146 | * defined in input/dmxevents.c */ | |
147 | typedef enum { | |
148 | DMX_NO_BLOCK = 0, | |
149 | DMX_BLOCK = 1 | |
150 | } DMXBlockType; | |
151 | ||
152 | extern void dmxGetGlobalPosition(int *x, int *y); | |
153 | extern DMXScreenInfo *dmxFindFirstScreen(int x, int y); | |
154 | extern void dmxCoreMotion(DevicePtr pDev, int x, int y, int delta, | |
155 | DMXBlockType block); | |
156 | ||
157 | /* Support for dynamic addition of inputs. This functions is defined in | |
158 | * config/dmxconfig.c */ | |
159 | extern DMXInputInfo *dmxConfigAddInput(const char *name, int core); | |
160 | #endif /* DMXINPUT_H */ |