/*
 * Copyright © 1999 Keith Packard
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of Keith Packard not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  Keith Packard makes no
 * representations about the suitability of this software for any purpose.  It
 * is provided "as is" without express or implied warranty.
 *
 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _KDRIVE_H_
#define _KDRIVE_H_

#include <stdio.h>
#include <string.h>
#include <X11/X.h>
#include <X11/Xproto.h>
#include <X11/Xos.h>
#include "scrnintstr.h"
#include "pixmapstr.h"
#include "windowstr.h"
#include "servermd.h"
#include "mibstore.h"
#include "colormapst.h"
#include "gcstruct.h"
#include "input.h"
#include "mipointer.h"
#include "mi.h"
#include "dix.h"
#include "fb.h"
#include "fboverlay.h"
#include "shadow.h"
#include "randrstr.h"
#include "globals.h"

#include "xkbstr.h"

#define KD_DPMS_NORMAL	    0
#define KD_DPMS_STANDBY	    1
#define KD_DPMS_SUSPEND	    2
#define KD_DPMS_POWERDOWN   3
#define KD_DPMS_MAX	    KD_DPMS_POWERDOWN

#define Status int

typedef struct _KdCardInfo {
    struct _KdCardFuncs *cfuncs;
    void *closure;
    void *driver;
    struct _KdScreenInfo *screenList;
    int selected;
    struct _KdCardInfo *next;
} KdCardInfo;

extern KdCardInfo *kdCardInfo;

/*
 * Configuration information per X screen
 */
typedef struct _KdFrameBuffer {
    CARD8 *frameBuffer;
    int depth;
    int bitsPerPixel;
    int pixelStride;
    int byteStride;
    Bool shadow;
    unsigned long visuals;
    Pixel redMask, greenMask, blueMask;
    void *closure;
} KdFrameBuffer;

#define RR_Rotate_All	(RR_Rotate_0|RR_Rotate_90|RR_Rotate_180|RR_Rotate_270)
#define RR_Reflect_All	(RR_Reflect_X|RR_Reflect_Y)

typedef struct _KdScreenInfo {
    struct _KdScreenInfo *next;
    KdCardInfo *card;
    ScreenPtr pScreen;
    void *driver;
    Rotation randr;             /* rotation and reflection */
    int width;
    int height;
    int rate;
    int width_mm;
    int height_mm;
    int subpixel_order;
    Bool dumb;
    Bool softCursor;
    int mynum;
    DDXPointRec origin;
    KdFrameBuffer fb;
} KdScreenInfo;

typedef struct _KdCardFuncs {
    Bool (*cardinit) (KdCardInfo *);    /* detect and map device */
    Bool (*scrinit) (KdScreenInfo *);   /* initialize screen information */
    Bool (*initScreen) (ScreenPtr);     /* initialize ScreenRec */
    Bool (*finishInitScreen) (ScreenPtr pScreen);
    Bool (*createRes) (ScreenPtr);      /* create screen resources */
    void (*preserve) (KdCardInfo *);    /* save graphics card state */
    Bool (*enable) (ScreenPtr); /* set up for rendering */
    Bool (*dpms) (ScreenPtr, int);      /* set DPMS screen saver */
    void (*disable) (ScreenPtr);        /* turn off rendering */
    void (*restore) (KdCardInfo *);     /* restore graphics card state */
    void (*scrfini) (KdScreenInfo *);   /* close down screen */
    void (*cardfini) (KdCardInfo *);    /* close down */

    Bool (*initCursor) (ScreenPtr);     /* detect and map cursor */
    void (*enableCursor) (ScreenPtr);   /* enable cursor */
    void (*disableCursor) (ScreenPtr);  /* disable cursor */
    void (*finiCursor) (ScreenPtr);     /* close down */
    void (*recolorCursor) (ScreenPtr, int, xColorItem *);

    Bool (*initAccel) (ScreenPtr);
    void (*enableAccel) (ScreenPtr);
    void (*disableAccel) (ScreenPtr);
    void (*finiAccel) (ScreenPtr);

    void (*getColors) (ScreenPtr, int, xColorItem *);
    void (*putColors) (ScreenPtr, int, xColorItem *);

} KdCardFuncs;

#define KD_MAX_PSEUDO_DEPTH 8
#define KD_MAX_PSEUDO_SIZE	    (1 << KD_MAX_PSEUDO_DEPTH)

typedef struct {
    KdScreenInfo *screen;
    KdCardInfo *card;

    Bool enabled;
    Bool closed;
    int bytesPerPixel;

    int dpmsState;

    ColormapPtr pInstalledmap;  /* current colormap */
    xColorItem systemPalette[KD_MAX_PSEUDO_SIZE];       /* saved windows colors */

    CreateScreenResourcesProcPtr CreateScreenResources;
    CloseScreenProcPtr CloseScreen;
} KdPrivScreenRec, *KdPrivScreenPtr;

typedef enum _kdPointerState {
    start,
    button_1_pend,
    button_1_down,
    button_2_down,
    button_3_pend,
    button_3_down,
    synth_2_down_13,
    synth_2_down_3,
    synth_2_down_1,
    num_input_states
} KdPointerState;

#define KD_MAX_BUTTON  32

#define KD_KEYBOARD 1
#define KD_MOUSE 2
#define KD_TOUCHSCREEN 3

typedef struct _KdPointerInfo KdPointerInfo;

typedef struct _KdPointerDriver {
    char *name;
     Status(*Init) (KdPointerInfo *);
     Status(*Enable) (KdPointerInfo *);
    void (*Disable) (KdPointerInfo *);
    void (*Fini) (KdPointerInfo *);
    struct _KdPointerDriver *next;
} KdPointerDriver;

struct _KdPointerInfo {
    DeviceIntPtr dixdev;
    char *name;
    char *path;
    char *protocol;
    InputOption *options;
    int inputClass;

    CARD8 map[KD_MAX_BUTTON + 1];
    int nButtons;
    int nAxes;

    Bool emulateMiddleButton;
    unsigned long emulationTimeout;
    int emulationDx, emulationDy;

    Bool timeoutPending;
    KdPointerState mouseState;
    Bool eventHeld;
    struct {
        int type;
        int x;
        int y;
        int z;
        int flags;
        int absrel;
    } heldEvent;
    unsigned char buttonState;
    Bool transformCoordinates;
    int pressureThreshold;

    KdPointerDriver *driver;
    void *driverPrivate;

    struct _KdPointerInfo *next;
};

extern int KdCurScreen;

void KdAddPointerDriver(KdPointerDriver * driver);
void KdRemovePointerDriver(KdPointerDriver * driver);
KdPointerInfo *KdNewPointer(void);
void KdFreePointer(KdPointerInfo *);
int KdAddPointer(KdPointerInfo * ki);
int KdAddConfigPointer(char *pointer);
void KdRemovePointer(KdPointerInfo * ki);

#define KD_KEY_COUNT 248
#define KD_MIN_KEYCODE  8
#define KD_MAX_KEYCODE  255
#define KD_MAX_WIDTH    4
#define KD_MAX_LENGTH   (KD_MAX_KEYCODE - KD_MIN_KEYCODE + 1)

typedef struct {
    KeySym modsym;
    int modbit;
} KdKeySymModsRec;

typedef struct _KdKeyboardInfo KdKeyboardInfo;

typedef struct _KdKeyboardDriver {
    char *name;
    Bool (*Init) (KdKeyboardInfo *);
    Bool (*Enable) (KdKeyboardInfo *);
    void (*Leds) (KdKeyboardInfo *, int);
    void (*Bell) (KdKeyboardInfo *, int, int, int);
    void (*Disable) (KdKeyboardInfo *);
    void (*Fini) (KdKeyboardInfo *);
    struct _KdKeyboardDriver *next;
} KdKeyboardDriver;

struct _KdKeyboardInfo {
    struct _KdKeyboardInfo *next;
    DeviceIntPtr dixdev;
    void *closure;
    char *name;
    char *path;
    int inputClass;
    char *xkbRules;
    char *xkbModel;
    char *xkbLayout;
    char *xkbVariant;
    char *xkbOptions;
    int LockLed;

    int minScanCode;
    int maxScanCode;

    int leds;
    int bellPitch;
    int bellDuration;
    InputOption *options;

    KdKeyboardDriver *driver;
    void *driverPrivate;
};

void KdAddKeyboardDriver(KdKeyboardDriver * driver);
void KdRemoveKeyboardDriver(KdKeyboardDriver * driver);
KdKeyboardInfo *KdNewKeyboard(void);
void KdFreeKeyboard(KdKeyboardInfo * ki);
int KdAddConfigKeyboard(char *pointer);
int KdAddKeyboard(KdKeyboardInfo * ki);
void KdRemoveKeyboard(KdKeyboardInfo * ki);

typedef struct _KdOsFuncs {
    int (*Init) (void);
    void (*Enable) (void);
    Bool (*SpecialKey) (KeySym);
    void (*Disable) (void);
    void (*Fini) (void);
    void (*pollEvents) (void);
    void (*Bell) (int, int, int);
} KdOsFuncs;

typedef enum _KdSyncPolarity {
    KdSyncNegative, KdSyncPositive
} KdSyncPolarity;

typedef struct _KdMonitorTiming {
    /* label */
    int horizontal;
    int vertical;
    int rate;
    /* pixel clock */
    int clock;                  /* in KHz */
    /* horizontal timing */
    int hfp;                    /* front porch */
    int hbp;                    /* back porch */
    int hblank;                 /* blanking */
    KdSyncPolarity hpol;        /* polarity */
    /* vertical timing */
    int vfp;                    /* front porch */
    int vbp;                    /* back porch */
    int vblank;                 /* blanking */
    KdSyncPolarity vpol;        /* polarity */
} KdMonitorTiming;

extern const KdMonitorTiming kdMonitorTimings[];
extern const int kdNumMonitorTimings;

typedef struct _KdPointerMatrix {
    int matrix[2][3];
} KdPointerMatrix;

/*
 * This is the only completely portable way to
 * compute this info.
 */

#ifndef BitsPerPixel
#define BitsPerPixel(d) (\
    PixmapWidthPaddingInfo[d].notPower2 ? \
    (PixmapWidthPaddingInfo[d].bytesPerPixel * 8) : \
    ((1 << PixmapWidthPaddingInfo[d].padBytesLog2) * 8 / \
    (PixmapWidthPaddingInfo[d].padRoundUp+1)))
#endif

extern DevPrivateKeyRec kdScreenPrivateKeyRec;

#define kdScreenPrivateKey (&kdScreenPrivateKeyRec)

extern unsigned long kdGeneration;
extern Bool kdEnabled;
extern Bool kdSwitchPending;
extern Bool kdEmulateMiddleButton;
extern Bool kdDisableZaphod;
extern Bool kdAllowZap;
extern int kdVirtualTerminal;
extern char *kdSwitchCmd;
extern KdOsFuncs *kdOsFuncs;

#define KdGetScreenPriv(pScreen) ((KdPrivScreenPtr) \
    dixLookupPrivate(&(pScreen)->devPrivates, kdScreenPrivateKey))
#define KdSetScreenPriv(pScreen,v) \
    dixSetPrivate(&(pScreen)->devPrivates, kdScreenPrivateKey, v)
#define KdScreenPriv(pScreen) KdPrivScreenPtr pScreenPriv = KdGetScreenPriv(pScreen)

/* kcmap.c */
void
 KdSetColormap(ScreenPtr pScreen);

void
 KdEnableColormap(ScreenPtr pScreen);

void
 KdDisableColormap(ScreenPtr pScreen);

void
 KdInstallColormap(ColormapPtr pCmap);

void
 KdUninstallColormap(ColormapPtr pCmap);

int
 KdListInstalledColormaps(ScreenPtr pScreen, Colormap * pCmaps);

void
 KdStoreColors(ColormapPtr pCmap, int ndef, xColorItem * pdefs);

/* kdrive.c */
extern miPointerScreenFuncRec kdPointerScreenFuncs;

void
 KdDisableScreen(ScreenPtr pScreen);

void
 KdDisableScreens(void);

Bool
 KdEnableScreen(ScreenPtr pScreen);

void
 KdEnableScreens(void);

void
 KdSuspend(void);

void
 KdResume(void);

void
 KdProcessSwitch(void);

Rotation KdAddRotation(Rotation a, Rotation b);

Rotation KdSubRotation(Rotation a, Rotation b);

void
 KdParseScreen(KdScreenInfo * screen, char *arg);

KdPointerInfo *KdParsePointer(char *arg);

KdKeyboardInfo *KdParseKeyboard(char *arg);

char *KdParseFindNext(char *cur, const char *delim, char *save, char *last);

void
 KdParseRgba(char *rgba);

void
 KdUseMsg(void);

int
 KdProcessArgument(int argc, char **argv, int i);

void
 KdOsInit(KdOsFuncs * pOsFuncs);

void
 KdOsAddInputDrivers(void);

Bool
 KdAllocatePrivates(ScreenPtr pScreen);

Bool
 KdCreateScreenResources(ScreenPtr pScreen);

Bool
 KdCloseScreen(int index, ScreenPtr pScreen);

Bool
 KdSaveScreen(ScreenPtr pScreen, int on);

Bool
 KdScreenInit(int index, ScreenPtr pScreen, int argc, char **argv);

void

KdInitScreen(ScreenInfo * pScreenInfo,
             KdScreenInfo * screen, int argc, char **argv);

void
 KdInitCard(ScreenInfo * pScreenInfo, KdCardInfo * card, int argc, char **argv);

void
 KdInitOutput(ScreenInfo * pScreenInfo, int argc, char **argv);

void
 KdSetSubpixelOrder(ScreenPtr pScreen, Rotation randr);

void
 KdBacktrace(int signum);

/* kinfo.c */
KdCardInfo *KdCardInfoAdd(KdCardFuncs * funcs, void *closure);

KdCardInfo *KdCardInfoLast(void);

void
 KdCardInfoDispose(KdCardInfo * ci);

KdScreenInfo *KdScreenInfoAdd(KdCardInfo * ci);

void
 KdScreenInfoDispose(KdScreenInfo * si);

/* kinput.c */
void
 KdInitInput(void);
void
 KdCloseInput(void);

Bool
 KdRegisterFd(int fd, void (*read) (int fd, void *closure), void *closure);

void
 KdUnregisterFds(void *closure, Bool do_close);

void
 KdUnregisterFd(void *closure, int fd, Bool do_close);

void

KdEnqueueKeyboardEvent(KdKeyboardInfo * ki, unsigned char scan_code,
                       unsigned char is_up);

#define KD_BUTTON_1	0x01
#define KD_BUTTON_2	0x02
#define KD_BUTTON_3	0x04
#define KD_BUTTON_4	0x08
#define KD_BUTTON_5	0x10
#define KD_BUTTON_8	0x80
#define KD_MOUSE_DELTA	0x80000000

void

KdEnqueuePointerEvent(KdPointerInfo * pi, unsigned long flags, int rx, int ry,
                      int rz);

void

_KdEnqueuePointerEvent(KdPointerInfo * pi, int type, int x, int y, int z,
                       int b, int absrel, Bool force);

void
 KdReleaseAllKeys(void);

void
 KdSetLed(KdKeyboardInfo * ki, int led, Bool on);

void
 KdSetPointerMatrix(KdPointerMatrix * pointer);

void

KdComputePointerMatrix(KdPointerMatrix * pointer, Rotation randr, int width,
                       int height);

void
 KdScreenToPointerCoords(int *x, int *y);

void

KdBlockHandler(int screen,
               pointer blockData, pointer timeout, pointer readmask);

void

KdWakeupHandler(int screen,
                pointer data, unsigned long result, pointer readmask);

void
 KdDisableInput(void);

void
 KdEnableInput(void);

void
 ProcessInputEvents(void);

void
 KdRingBell(KdKeyboardInfo * ki, int volume, int pitch, int duration);

/* kmode.c */
const KdMonitorTiming *KdFindMode(KdScreenInfo * screen,
                                  Bool (*supported) (KdScreenInfo *,
                                                     const KdMonitorTiming *));

Bool

KdTuneMode(KdScreenInfo * screen,
           Bool (*usable) (KdScreenInfo *),
           Bool (*supported) (KdScreenInfo *, const KdMonitorTiming *));

#ifdef RANDR
Bool

KdRandRGetInfo(ScreenPtr pScreen,
               int randr,
               Bool (*supported) (ScreenPtr pScreen, const KdMonitorTiming *));

const KdMonitorTiming *KdRandRGetTiming(ScreenPtr pScreen,
                                        Bool (*supported) (ScreenPtr pScreen,
                                                           const KdMonitorTiming
                                                           *), int rate,
                                        RRScreenSizePtr pSize);
#endif

/* kshadow.c */
Bool
 KdShadowFbAlloc(KdScreenInfo * screen, Bool rotate);

void
 KdShadowFbFree(KdScreenInfo * screen);

Bool

KdShadowSet(ScreenPtr pScreen, int randr, ShadowUpdateProc update,
            ShadowWindowProc window);

void
 KdShadowUnset(ScreenPtr pScreen);

/* function prototypes to be implemented by the drivers */
void
 InitCard(char *name);

#endif                          /* _KDRIVE_H_ */
