| 1 | /*
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| 2 | * Copyright 2001,2002 Red Hat Inc., Durham, North Carolina.
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| 3 | *
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| 4 | * All Rights Reserved.
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| 5 | *
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining
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| 7 | * a copy of this software and associated documentation files (the
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| 8 | * "Software"), to deal in the Software without restriction, including
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| 9 | * without limitation on the rights to use, copy, modify, merge,
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| 10 | * publish, distribute, sublicense, and/or sell copies of the Software,
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| 11 | * and to permit persons to whom the Software is furnished to do so,
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| 12 | * subject to the following conditions:
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| 13 | *
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| 14 | * The above copyright notice and this permission notice (including the
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| 15 | * next paragraph) shall be included in all copies or substantial
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| 16 | * portions of the Software.
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| 17 | *
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| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| 19 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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| 20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| 21 | * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
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| 22 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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| 23 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| 24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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| 25 | * SOFTWARE.
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| 26 | */
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| 27 |
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| 28 | /*
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| 29 | * Authors:
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| 30 | * David H. Dawes <[email protected]>
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| 31 | * Kevin E. Martin <[email protected]>
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| 32 | * Rickard E. (Rik) Faith <[email protected]>
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| 33 | *
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| 34 | */
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| 35 |
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| 36 | /** \file
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| 37 | * This file provides access to:
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| 38 | * - global variables available to all hw/dmx routines, and
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| 39 | * - enumerations and typedefs needed by input routines in hw/dmx (and
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| 40 | * hw/dmx/input).
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| 41 | *
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| 42 | * The goal is that no files in hw/dmx should include header files from
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| 43 | * hw/dmx/input -- the interface defined here should be the only
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| 44 | * interface exported to the hw/dmx layer. \see input/dmxinputinit.c.
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| 45 | */
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| 46 |
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| 47 | #ifndef DMXINPUT_H
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| 48 | #define DMXINPUT_H
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| 49 |
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| 50 | /** Maximum number of file descriptors for SIGIO handling */
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| 51 | #define DMX_MAX_SIGIO_FDS 4
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| 52 |
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| 53 | struct _DMXInputInfo;
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| 54 |
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| 55 | /** Reason why window layout was updated. */
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| 56 | typedef enum {
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| 57 | DMX_UPDATE_REALIZE, /**< Window realized */
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| 58 | DMX_UPDATE_UNREALIZE, /**< Window unrealized */
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| 59 | DMX_UPDATE_RESTACK, /**< Stacking order changed */
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| 60 | DMX_UPDATE_COPY, /**< Window copied */
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| 61 | DMX_UPDATE_RESIZE, /**< Window resized */
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| 62 | DMX_UPDATE_REPARENT /**< Window reparented */
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| 63 | } DMXUpdateType;
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| 64 |
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| 65 | typedef void (*ProcessInputEventsProc)(struct _DMXInputInfo *);
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| 66 | typedef void (*UpdateWindowInfoProc)(struct _DMXInputInfo *,
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| 67 | DMXUpdateType, WindowPtr);
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| 68 |
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| 69 | /** An opaque structure that is only exposed in the dmx/input layer. */
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| 70 | typedef struct _DMXLocalInputInfo *DMXLocalInputInfoPtr;
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| 71 |
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| 72 | /** State of the SIGIO engine */
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| 73 | typedef enum {
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| 74 | DMX_NOSIGIO = 0, /**< Device does not use SIGIO at all. */
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| 75 | DMX_USESIGIO, /**< Device can use SIGIO, but is not
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| 76 | * (e.g., because the VT is switch
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| 77 | * away). */
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| 78 | DMX_ACTIVESIGIO /**< Device is currently using SIGIO. */
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| 79 | } dmxSigioState;
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| 80 |
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| 81 | /** DMXInputInfo is typedef'd in #dmx.h so that all routines can have
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| 82 | * access to the global pointers. However, the elements are only
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| 83 | * available to input-related routines. */
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| 84 | struct _DMXInputInfo {
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| 85 | const char *name; /**< Name of input display or device
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| 86 | * (from command line or config
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| 87 | * file) */
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| 88 | Bool freename; /**< If true, free name on destroy */
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| 89 | Bool detached; /**< If true, input screen is detached */
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| 90 | int inputIdx; /**< Index into #dmxInputs global */
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| 91 | int scrnIdx; /**< Index into #dmxScreens global */
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| 92 | Bool core; /**< If True, initialize these
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| 93 | * devices as devices that send core
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| 94 | * events */
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| 95 | Bool console; /**< True if console and backend
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| 96 | * input share the same backend
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| 97 | * display */
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| 98 |
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| 99 | Bool windows; /**< True if window outlines are
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| 100 | * draw in console */
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| 101 |
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| 102 | ProcessInputEventsProc processInputEvents;
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| 103 | UpdateWindowInfoProc updateWindowInfo;
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| 104 |
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| 105 | /* Local input information */
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| 106 | dmxSigioState sigioState; /**< Current stat */
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| 107 | int sigioFdCount; /**< Number of fds in use */
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| 108 | int sigioFd[DMX_MAX_SIGIO_FDS]; /**< List of fds */
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| 109 | Bool sigioAdded[DMX_MAX_SIGIO_FDS]; /**< Active fds */
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| 110 |
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| 111 |
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| 112 | /** True if a VT switch is pending, but has not yet happened. */
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| 113 | int vt_switch_pending;
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| 114 |
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| 115 | /** True if a VT switch has happened. */
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| 116 | int vt_switched;
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| 117 |
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| 118 | /** Number of devices handled in this _DMXInputInfo structure. */
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| 119 | int numDevs;
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| 120 |
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| 121 | /** List of actual input devices. Each _DMXInputInfo structure can
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| 122 | * refer to more than one device. For example, the keyboard and the
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| 123 | * pointer of a backend display; or all of the XInput extension
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| 124 | * devices on a backend display. */
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| 125 | DMXLocalInputInfoPtr *devs;
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| 126 |
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| 127 | char *keycodes; /**< XKB keycodes from command line */
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| 128 | char *symbols; /**< XKB symbols from command line */
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| 129 | char *geometry; /**< XKB geometry from command line */
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| 130 | };
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| 131 |
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| 132 | extern int dmxNumInputs; /**< Number of #dmxInputs */
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| 133 | extern DMXInputInfo *dmxInputs; /**< List of inputs */
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| 134 |
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| 135 | extern void dmxInputInit(DMXInputInfo *dmxInput);
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| 136 | extern void dmxInputReInit(DMXInputInfo *dmxInput);
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| 137 | extern void dmxInputLateReInit(DMXInputInfo *dmxInput);
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| 138 | extern void dmxInputFree(DMXInputInfo *dmxInput);
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| 139 | extern void dmxInputLogDevices(void);
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| 140 | extern void dmxUpdateWindowInfo(DMXUpdateType type, WindowPtr pWindow);
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| 141 |
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| 142 | /* These functions are defined in input/dmxeq.c */
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| 143 | extern Bool dmxeqInitialized(void);
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| 144 | extern void dmxeqEnqueue(xEvent *e);
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| 145 | extern void dmxeqSwitchScreen(ScreenPtr pScreen, Bool fromDIX);
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| 146 |
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| 147 | /* This type is used in input/dmxevents.c. Also, these functions are
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| 148 | * defined in input/dmxevents.c */
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| 149 | typedef enum {
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| 150 | DMX_NO_BLOCK = 0,
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| 151 | DMX_BLOCK = 1
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| 152 | } DMXBlockType;
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| 153 |
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| 154 | extern void dmxGetGlobalPosition(int *x, int *y);
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| 155 | extern DMXScreenInfo *dmxFindFirstScreen(int x, int y);
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| 156 | extern void dmxCoreMotion(DevicePtr pDev, int x, int y, int delta,
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| 157 | DMXBlockType block);
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| 158 |
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| 159 | /* Support for dynamic addition of inputs. This functions is defined in
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| 160 | * config/dmxconfig.c */
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| 161 | extern DMXInputInfo *dmxConfigAddInput(const char *name, int core);
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| 162 | #endif /* DMXINPUT_H */
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