ilusha/Modules
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Unstable & with drawing restored

Browse source
This commit is contained in:
Ilusha 2024-03-17 23:37:15 +03:00 • committed by Ilya Shurupov
parent 1155067b26
commit cd8feaf2c0
15 changed files with 1004 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

943
Externals/easytab/easytab.h vendored Normal file
View file

@ -0,0 +1,943 @@
/*
EasyTab.h - Single-header multi-platform tablet library
https://github.com/ApoorvaJ/EasyTab
----------------------------------------------------------------------------
USAGE
----------------------------------------------------------------------------
1) Add the following lines in exactly one of your cpp files to compile the
implementation.
#define EASYTAB_IMPLEMENTATION
#include "easytab.h"
2) Call EasyTab_Load() with correct parameters to initialize EasyTab. These
parameters vary per OS, so look at the function declarations or examples
below. Function returns EASYTAB_OK if initialization was successful.
3) Call EasyTab_HandleEvent() in your message-handling code. The function
returns EASYTAB_OK if the message was a tablet message, and
EASYTAB_EVENT_NOT_HANDLED otherwise.
4) Call EasyTab_Unload() in your shutdown code.
5) Once initialized, you can query tablet state using the EasyTab pointer.
e.g.:
EasyTab->PosX // X position of the pen
EasyTab->PosY // Y position of the pen
EasyTab->Pressure // Pressure of the pen ranging from 0.0f to 1.0f
For more info, have a look at the EasyTabInfo struct below.
* Add -lXi to compiler options to link XInput on Linux.
----------------------------------------------------------------------------
EXAMPLES
----------------------------------------------------------------------------
1) Windows:
int CALLBACK WinMain(...)
{
HWND Window;
...
if (EasyTab_Load(Window) != EASYTAB_OK) // Load
{
OutputDebugStringA("Tablet init failed\n");
}
...
// Once you've set up EasyTab loading, unloading and event handling,
// use the EasyTab variable at any point in your program to access
// the tablet state:
// EasyTab->PosX
// EasyTab->PosY
// EasyTab->Pressure
// For more tablet information, look at the EasyTabInfo struct.
...
EasyTab_Unload(); // Unload
}
LRESULT CALLBACK WindowProc(
HWND Window,
UINT Message,
WPARAM WParam,
LPARAM LParam)
{
if (EasyTab_HandleEvent(Window, Message, LParam, WParam) == EASYTAB_OK) // Event
{
return true; // Tablet event handled
}
switch (Message)
{
...
}
}
2) Linux:
int main(...)
{
Display* Disp;
Window Win;
...
if (EasyTab_Load(Disp, Win) != EASYTAB_OK) // Load
{
printf("Tablet init failed\n");
}
...
while (XPending(Disp)) // Event loop
{
XEvent Event;
XNextEvent(XlibDisplay, &Event);
if (EasyTab_HandleEvent(&Event) == EASYTAB_OK) // Event
{
continue; // Tablet event handled
}
switch (Event.type)
{
...
}
}
...
// Once you've set up EasyTab loading, unloading and event handling,
// use the EasyTab variable at any point in your program to access
// the tablet state:
// EasyTab->PosX
// EasyTab->PosY
// EasyTab->Pressure
// For more tablet information, look at the EasyTabInfo struct.
...
EasyTab_Unload(); // Unload
}
----------------------------------------------------------------------------
CREDITS
----------------------------------------------------------------------------
Apoorva Joshi apoorvaj.io
Sergio Gonzalez s3rg.io
This library is coded in the spirit of the stb libraries and follows the stb
guidelines.
*/
// TODO: Null checks and warnings for EasyTab
// TODO: Differentiate between stylus and eraser in the API
// TODO: Linux support for relative mode
// TODO: Documentation for relative mode
// =============================================================================
// EasyTab header section
// =============================================================================
#ifndef EASYTAB_H
#define EASYTAB_H
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#ifdef __linux__
#include <X11/extensions/XInput.h>
#endif // __linux__
#ifdef _WIN32
#include <windows.h>
#endif // _WIN32
typedef enum
{
EASYTAB_OK = 0,
// Errors
EASYTAB_MEMORY_ERROR = -1,
EASYTAB_X11_ERROR = -2,
EASYTAB_DLL_LOAD_ERROR = -3,
EASYTAB_WACOM_WIN32_ERROR = -4,
EASYTAB_INVALID_FUNCTION_ERROR = -5,
EASYTAB_EVENT_NOT_HANDLED = -16,
} EasyTabResult;
typedef enum
{
EASYTAB_TRACKING_MODE_SYSTEM = 0,
EASYTAB_TRACKING_MODE_RELATIVE = 1,
} EasyTabTrackingMode;
#ifdef WIN32
// -----------------------------------------------------------------------------
// wintab.h
// -----------------------------------------------------------------------------
#if 1
DECLARE_HANDLE(HMGR);
DECLARE_HANDLE(HCTX);
typedef DWORD WTPKT;
typedef DWORD FIX32;
// Messages
#if 1
#define WT_DEFBASE 0x7FF0
#define WT_MAXOFFSET 0xF
#define _WT_PACKET(b) ((b)+0)
#define _WT_CTXOPEN(b) ((b)+1)
#define _WT_CTXCLOSE(b) ((b)+2)
#define _WT_CTXUPDATE(b) ((b)+3)
#define _WT_CTXOVERLAP(b) ((b)+4)
#define _WT_PROXIMITY(b) ((b)+5)
#define _WT_INFOCHANGE(b) ((b)+6)
#define _WT_CSRCHANGE(b) ((b)+7) /* 1.1 */
#define _WT_PACKETEXT(b) ((b)+8) /* 1.4 */
#define _WT_MAX(b) ((b)+WT_MAXOFFSET)
#define WT_PACKET _WT_PACKET(WT_DEFBASE)
#define WT_CTXOPEN _WT_CTXOPEN(WT_DEFBASE)
#define WT_CTXCLOSE _WT_CTXCLOSE(WT_DEFBASE)
#define WT_CTXUPDATE _WT_CTXUPDATE(WT_DEFBASE)
#define WT_CTXOVERLAP _WT_CTXOVERLAP(WT_DEFBASE)
#define WT_PROXIMITY _WT_PROXIMITY(WT_DEFBASE)
#define WT_INFOCHANGE _WT_INFOCHANGE(WT_DEFBASE)
#define WT_CSRCHANGE _WT_CSRCHANGE(WT_DEFBASE) /* 1.1 */
#define WT_PACKETEXT _WT_PACKETEXT(WT_DEFBASE) /* 1.4 */
#define WT_MAX _WT_MAX(WT_DEFBASE)
#endif // Messages
// Flags
#if 1
#define CTX_NAME 1
#define CTX_OPTIONS 2
#define CTX_STATUS 3
#define CTX_LOCKS 4
#define CTX_MSGBASE 5
#define CTX_DEVICE 6
#define CTX_PKTRATE 7
#define CTX_PKTDATA 8
#define CTX_PKTMODE 9
#define CTX_MOVEMASK 10
#define CTX_BTNDNMASK 11
#define CTX_BTNUPMASK 12
#define CTX_INORGX 13
#define CTX_INORGY 14
#define CTX_INORGZ 15
#define CTX_INEXTX 16
#define CTX_INEXTY 17
#define CTX_INEXTZ 18
#define CTX_OUTORGX 19
#define CTX_OUTORGY 20
#define CTX_OUTORGZ 21
#define CTX_OUTEXTX 22
#define CTX_OUTEXTY 23
#define CTX_OUTEXTZ 24
#define CTX_SENSX 25
#define CTX_SENSY 26
#define CTX_SENSZ 27
#define CTX_SYSMODE 28
#define CTX_SYSORGX 29
#define CTX_SYSORGY 30
#define CTX_SYSEXTX 31
#define CTX_SYSEXTY 32
#define CTX_SYSSENSX 33
#define CTX_SYSSENSY 34
#define CTX_MAX 34
// Context option values
#define CXO_SYSTEM 0x0001
#define CXO_PEN 0x0002
#define CXO_MESSAGES 0x0004
#define CXO_MARGIN 0x8000
#define CXO_MGNINSIDE 0x4000
#define CXO_CSRMESSAGES 0x0008 /* 1.1 */
#define DVC_NAME 1
#define DVC_HARDWARE 2
#define DVC_NCSRTYPES 3
#define DVC_FIRSTCSR 4
#define DVC_PKTRATE 5
#define DVC_PKTDATA 6
#define DVC_PKTMODE 7
#define DVC_CSRDATA 8
#define DVC_XMARGIN 9
#define DVC_YMARGIN 10
#define DVC_ZMARGIN 11
#define DVC_X 12
#define DVC_Y 13
#define DVC_Z 14
#define DVC_NPRESSURE 15
#define DVC_TPRESSURE 16
#define DVC_ORIENTATION 17
#define DVC_ROTATION 18 /* 1.1 */
#define DVC_PNPID 19 /* 1.1 */
#define DVC_MAX 19
#define PK_CONTEXT 0x0001 // reporting context
#define PK_STATUS 0x0002 // status bits
#define PK_TIME 0x0004 // time stamp
#define PK_CHANGED 0x0008 // change bit vector
#define PK_SERIAL_NUMBER 0x0010 // packet serial number
#define PK_CURSOR 0x0020 // reporting cursor
#define PK_BUTTONS 0x0040 // button information
#define PK_X 0x0080 // x axis
#define PK_Y 0x0100 // y axis
#define PK_Z 0x0200 // z axis
#define PK_NORMAL_PRESSURE 0x0400 // normal or tip pressure
#define PK_TANGENT_PRESSURE 0x0800 // tangential or barrel pressure
#define PK_ORIENTATION 0x1000 // orientation info: tilts
#define PK_ROTATION 0x2000 // rotation info; 1.1
// constants for use with pktdef.h
#define PKEXT_ABSOLUTE 1
#define PKEXT_RELATIVE 2
#define WTI_DEFCONTEXT 3
#define WTI_DEFSYSCTX 4
#define WTI_DEVICES 100
#define WTI_DDCTXS 400 /* 1.1 */
#define WTI_DSCTXS 500 /* 1.1 */
#endif // Flags
typedef struct tagAXIS {
LONG axMin;
LONG axMax;
UINT axUnits;
FIX32 axResolution;
} AXIS, *PAXIS, NEAR *NPAXIS, FAR *LPAXIS;
#define LCNAMELEN 40
typedef struct tagLOGCONTEXTA {
char lcName[LCNAMELEN];
UINT lcOptions;
UINT lcStatus;
UINT lcLocks;
UINT lcMsgBase;
UINT lcDevice;
UINT lcPktRate;
WTPKT lcPktData;
WTPKT lcPktMode;
WTPKT lcMoveMask;
DWORD lcBtnDnMask;
DWORD lcBtnUpMask;
LONG lcInOrgX;
LONG lcInOrgY;
LONG lcInOrgZ;
LONG lcInExtX;
LONG lcInExtY;
LONG lcInExtZ;
LONG lcOutOrgX;
LONG lcOutOrgY;
LONG lcOutOrgZ;
LONG lcOutExtX;
LONG lcOutExtY;
LONG lcOutExtZ;
FIX32 lcSensX;
FIX32 lcSensY;
FIX32 lcSensZ;
BOOL lcSysMode;
int lcSysOrgX;
int lcSysOrgY;
int lcSysExtX;
int lcSysExtY;
FIX32 lcSysSensX;
FIX32 lcSysSensY;
} LOGCONTEXTA, *PLOGCONTEXTA, NEAR *NPLOGCONTEXTA, FAR *LPLOGCONTEXTA;
typedef struct tagEXTENSIONBASE { /* 1.4 */
HCTX nContext;
UINT nStatus;
DWORD nTime;
UINT nSerialNumber;
} EXTENSIONBASE;
#endif // wintab.h
// -----------------------------------------------------------------------------
#define PACKETDATA PK_X | PK_Y | PK_BUTTONS | PK_NORMAL_PRESSURE
#define PACKETMODE 0
// -----------------------------------------------------------------------------
// pktdef.h
// -----------------------------------------------------------------------------
#if 1
// TODO: Simplify this file if we have a fixed packet format.
// The macros here are too ugly.
#ifndef PACKETNAME
/* if no packet name prefix */
#define __PFX(x) x
#define __IFX(x,y) x ## y
#else
/* add prefixes and infixes to packet format names */
#define __PFX(x) __PFX2(PACKETNAME,x)
#define __PFX2(p,x) __PFX3(p,x)
#define __PFX3(p,x) p ## x
#define __IFX(x,y) __IFX2(x,PACKETNAME,y)
#define __IFX2(x,i,y) __IFX3(x,i,y)
#define __IFX3(x,i,y) x ## i ## y
#endif
#define __SFX2(x,s) __SFX3(x,s)
#define __SFX3(x,s) x ## s
#define __TAG __IFX(tag,PACKET)
#define __TYPES __PFX(PACKET), * __IFX(P,PACKET), NEAR * __IFX(NP,PACKET), FAR * __IFX(LP,PACKET)
#define __TAGE __IFX(tag,PACKETEXT)
#define __TYPESE __PFX(PACKETEXT), * __IFX(P,PACKETEXT), NEAR * __IFX(NP,PACKETEXT), FAR * __IFX(LP,PACKETEXT)
#define __DATA (__PFX(PACKETDATA))
#define __MODE (__PFX(PACKETMODE))
#define __EXT(x) __SFX2(__PFX(PACKET),x)
typedef struct __TAG {
#if (__DATA & PK_CONTEXT)
HCTX pkContext;
#endif
#if (__DATA & PK_STATUS)
UINT pkStatus;
#endif
#if (__DATA & PK_TIME)
DWORD pkTime;
#endif
#if (__DATA & PK_CHANGED)
WTPKT pkChanged;
#endif
#if (__DATA & PK_SERIAL_NUMBER)
UINT pkSerialNumber;
#endif
#if (__DATA & PK_CURSOR)
UINT pkCursor;
#endif
#if (__DATA & PK_BUTTONS)
DWORD pkButtons;
#endif
#if (__DATA & PK_X)
LONG pkX;
#endif
#if (__DATA & PK_Y)
LONG pkY;
#endif
#if (__DATA & PK_Z)
LONG pkZ;
#endif
#if (__DATA & PK_NORMAL_PRESSURE)
#if (__MODE & PK_NORMAL_PRESSURE)
/* relative */
int pkNormalPressure;
#else
/* absolute */
UINT pkNormalPressure;
#endif
#endif
#if (__DATA & PK_TANGENT_PRESSURE)
#if (__MODE & PK_TANGENT_PRESSURE)
/* relative */
int pkTangentPressure;
#else
/* absolute */
UINT pkTangentPressure;
#endif
#endif
#if (__DATA & PK_ORIENTATION)
ORIENTATION pkOrientation;
#endif
#if (__DATA & PK_ROTATION)
ROTATION pkRotation; /* 1.1 */
#endif
#ifndef NOWTEXTENSIONS
/* extensions begin here. */
#if (__EXT(FKEYS) == PKEXT_RELATIVE) || (__EXT(FKEYS) == PKEXT_ABSOLUTE)
UINT pkFKeys;
#endif
#if (__EXT(TILT) == PKEXT_RELATIVE) || (__EXT(TILT) == PKEXT_ABSOLUTE)
TILT pkTilt;
#endif
#endif
} __TYPES;
#ifndef NOWTEXTENSIONS
typedef struct __TAGE {
EXTENSIONBASE pkBase;
#if (__EXT(EXPKEYS) == PKEXT_RELATIVE) || (__EXT(EXPKEYS) == PKEXT_ABSOLUTE)
EXPKEYSDATA pkExpKeys; /* 1.4 */
#endif
#if (__EXT(TOUCHSTRIP) == PKEXT_RELATIVE) || (__EXT(TOUCHSTRIP) == PKEXT_ABSOLUTE)
SLIDERDATA pkTouchStrip; /* 1.4 */
#endif
#if (__EXT(TOUCHRING) == PKEXT_RELATIVE) || (__EXT(TOUCHRING) == PKEXT_ABSOLUTE)
SLIDERDATA pkTouchRing; /* 1.4 */
#endif
} __TYPESE;
#endif
#undef PACKETNAME
#undef __TAG
#undef __TAGE
#undef __TAG2
#undef __TYPES
#undef __TYPESE
#undef __TYPES2
#undef __DATA
#undef __MODE
#undef __PFX
#undef __PFX2
#undef __PFX3
#undef __IFX
#undef __IFX2
#undef __IFX3
#undef __SFX2
#undef __SFX3
#endif // pktdef.h
// -----------------------------------------------------------------------------
typedef UINT (WINAPI * WTINFOA) (UINT, UINT, LPVOID);
typedef HCTX (WINAPI * WTOPENA) (HWND, LPLOGCONTEXTA, BOOL);
typedef BOOL (WINAPI * WTGETA) (HCTX, LPLOGCONTEXTA);
typedef BOOL (WINAPI * WTSETA) (HCTX, LPLOGCONTEXTA);
typedef BOOL (WINAPI * WTCLOSE) (HCTX);
typedef BOOL (WINAPI * WTENABLE) (HCTX, BOOL);
typedef BOOL (WINAPI * WTPACKET) (HCTX, UINT, LPVOID);
typedef BOOL (WINAPI * WTOVERLAP) (HCTX, BOOL);
typedef BOOL (WINAPI * WTSAVE) (HCTX, LPVOID);
typedef BOOL (WINAPI * WTCONFIG) (HCTX, HWND);
typedef HCTX (WINAPI * WTRESTORE) (HWND, LPVOID, BOOL);
typedef BOOL (WINAPI * WTEXTSET) (HCTX, UINT, LPVOID);
typedef BOOL (WINAPI * WTEXTGET) (HCTX, UINT, LPVOID);
typedef BOOL (WINAPI * WTQUEUESIZESET) (HCTX, int);
typedef int (WINAPI * WTDATAPEEK) (HCTX, UINT, UINT, int, LPVOID, LPINT);
typedef int (WINAPI * WTPACKETSGET) (HCTX, int, LPVOID);
typedef HMGR (WINAPI * WTMGROPEN) (HWND, UINT);
typedef BOOL (WINAPI * WTMGRCLOSE) (HMGR);
typedef HCTX (WINAPI * WTMGRDEFCONTEXT) (HMGR, BOOL);
typedef HCTX (WINAPI * WTMGRDEFCONTEXTEX) (HMGR, UINT, BOOL);
#endif // WIN32
// -----------------------------------------------------------------------------
// Enums
// -----------------------------------------------------------------------------
/*
Use this enum in conjunction with EasyTab->Buttons to check for tablet button
presses.
e.g. To check for lower pen button press, use:
if (EasyTab->Buttons & EasyTab_Buttons_Pen_Lower)
{
// Lower button is pressed
}
*/
enum EasyTab_Buttons_
{
EasyTab_Buttons_Pen_Touch = 1 << 0, // Pen is touching tablet
EasyTab_Buttons_Pen_Lower = 1 << 1, // Lower pen button is pressed
EasyTab_Buttons_Pen_Upper = 1 << 2, // Upper pen button is pressed
};
// -----------------------------------------------------------------------------
// Structs
// -----------------------------------------------------------------------------
typedef struct
{
int32_t PosX, PosY;
float Pressure; // Range: 0.0f to 1.0f
int32_t Buttons; // Bit field. Use with the EasyTab_Buttons_ enum.
int32_t RangeX, RangeY;
int32_t MaxPressure;
#ifdef __linux__
XDevice* Device;
uint32_t MotionType;
XEventClass EventClasses[1024];
uint32_t NumEventClasses;
#endif // __linux__
#ifdef WIN32
HINSTANCE Dll;
HCTX Context;
WTINFOA WTInfoA;
WTOPENA WTOpenA;
WTGETA WTGetA;
WTSETA WTSetA;
WTCLOSE WTClose;
WTPACKET WTPacket;
WTENABLE WTEnable;
WTOVERLAP WTOverlap;
WTSAVE WTSave;
WTCONFIG WTConfig;
WTRESTORE WTRestore;
WTEXTSET WTExtSet;
WTEXTGET WTExtGet;
WTQUEUESIZESET WTQueueSizeSet;
WTDATAPEEK WTDataPeek;
WTPACKETSGET WTPacketsGet;
WTMGROPEN WTMgrOpen;
WTMGRCLOSE WTMgrClose;
WTMGRDEFCONTEXT WTMgrDefContext;
WTMGRDEFCONTEXTEX WTMgrDefContextEx;
#endif // WIN32
} EasyTabInfo;
extern EasyTabInfo* EasyTab;
// -----------------------------------------------------------------------------
// Function declarations
// -----------------------------------------------------------------------------
#if defined(__linux__)
EasyTabResult EasyTab_Load(Display* Disp, Window Win);
EasyTabResult EasyTab_HandleEvent(XEvent* Event);
void EasyTab_Unload(Display* Disp);
#elif defined(_WIN32)
EasyTabResult EasyTab_Load(HWND Window);
EasyTabResult EasyTab_Load_Ex(HWND Window,
EasyTabTrackingMode Mode,
float RelativeModeSensitivity,
int32_t MoveCursor);
EasyTabResult EasyTab_HandleEvent(HWND Window,
UINT Message,
LPARAM LParam,
WPARAM WParam);
void EasyTab_Unload();
#else
// Save some trouble when porting.
#error "Unsupported platform."
#endif // __linux__ _WIN32
// -----------------------------------------------------------------------------
#endif // EASYTAB_H
// =============================================================================
// EasyTab implementation section
// =============================================================================
#ifdef EASYTAB_IMPLEMENTATION
EasyTabInfo* EasyTab;
// -----------------------------------------------------------------------------
// Linux implementation
// -----------------------------------------------------------------------------
#ifdef __linux__
EasyTabResult EasyTab_Load(Display* Disp, Window Win)
{
EasyTab = (EasyTabInfo*)calloc(1, sizeof(EasyTabInfo)); // We want init to zero, hence calloc.
if (!EasyTab) { return EASYTAB_MEMORY_ERROR; }
int32_t Count;
XDeviceInfoPtr Devices = (XDeviceInfoPtr)XListInputDevices(Disp, &Count);
if (!Devices) { return EASYTAB_X11_ERROR; }
for (int32_t i = 0; i < Count; i++)
{
if (!strstr(Devices[i].name, "stylus") &&
!strstr(Devices[i].name, "eraser")) { continue; }
EasyTab->Device = XOpenDevice(Disp, Devices[i].id);
XAnyClassPtr ClassPtr = Devices[i].inputclassinfo;
for (int32_t j = 0; j < Devices[i].num_classes; j++)
{
#if defined(__cplusplus)
switch (ClassPtr->c_class)
#else
switch (ClassPtr->class)
#endif
{
case ValuatorClass:
{
XValuatorInfo *Info = (XValuatorInfo *)ClassPtr;
// X
if (Info->num_axes > 0)
{
int32_t min = Info->axes[0].min_value;
EasyTab->RangeX = Info->axes[0].max_value;
//printf("Max/min x values: %d, %d\n", min, EasyTab->RangeX); // TODO: Platform-print macro
}
// Y
if (Info->num_axes > 1)
{
int32_t min = Info->axes[1].min_value;
EasyTab->RangeY = Info->axes[1].max_value;
//printf("Max/min y values: %d, %d\n", min, EasyTab->RangeY);
}
// Pressure
if (Info->num_axes > 2)
{
int32_t min = Info->axes[2].min_value;
EasyTab->MaxPressure = Info->axes[2].max_value;
//printf("Max/min pressure values: %d, %d\n", min, EasyTab->MaxPressure);
}
XEventClass EventClass;
DeviceMotionNotify(EasyTab->Device, EasyTab->MotionType, EventClass);
if (EventClass)
{
EasyTab->EventClasses[EasyTab->NumEventClasses] = EventClass;
EasyTab->NumEventClasses++;
}
} break;
}
ClassPtr = (XAnyClassPtr) ((uint8_t*)ClassPtr + ClassPtr->length); // TODO: Access this as an array to avoid pointer arithmetic?
}
XSelectExtensionEvent(Disp, Win, EasyTab->EventClasses, EasyTab->NumEventClasses);
}
XFreeDeviceList(Devices);
if (EasyTab->Device != 0) { return EASYTAB_OK; }
else { return EASYTAB_X11_ERROR; }
}
EasyTabResult EasyTab_HandleEvent(XEvent* Event)
{
if (Event->type != EasyTab->MotionType) { return EASYTAB_EVENT_NOT_HANDLED; }
XDeviceMotionEvent* MotionEvent = (XDeviceMotionEvent*)(Event);
EasyTab->PosX = MotionEvent->x;
EasyTab->PosY = MotionEvent->y;
EasyTab->Pressure = (float)MotionEvent->axis_data[2] / (float)EasyTab->MaxPressure;
return EASYTAB_OK;
}
void EasyTab_Unload(Display* Disp)
{
XCloseDevice(Disp, EasyTab->Device);
free(EasyTab);
EasyTab = NULL;
}
#endif // __linux__
// -----------------------------------------------------------------------------
// Windows implementation
// -----------------------------------------------------------------------------
#ifdef WIN32
#define GETPROCADDRESS(type, func) \
EasyTab->func = (type)GetProcAddress(EasyTab->Dll, #func); \
if (!EasyTab->func) \
{ \
OutputDebugStringA("Function " #func " not found in Wintab32.dll.\n"); \
return EASYTAB_INVALID_FUNCTION_ERROR; \
}
EasyTabResult EasyTab_Load(HWND Window)
{
return EasyTab_Load_Ex(Window, EASYTAB_TRACKING_MODE_SYSTEM, 0, 1);
}
EasyTabResult EasyTab_Load_Ex(HWND Window,
EasyTabTrackingMode TrackingMode,
float RelativeModeSensitivity,
int32_t MoveCursor)
{
EasyTab = (EasyTabInfo*)calloc(1, sizeof(EasyTabInfo)); // We want init to zero, hence calloc.
if (!EasyTab) { return EASYTAB_MEMORY_ERROR; }
// Load Wintab DLL and get function addresses
{
EasyTab->Dll = LoadLibraryA("Wintab32.dll");
if (!EasyTab->Dll)
{
OutputDebugStringA("Wintab32.dll not found.\n");
return EASYTAB_DLL_LOAD_ERROR;
}
GETPROCADDRESS(WTINFOA , WTInfoA);
GETPROCADDRESS(WTOPENA , WTOpenA);
GETPROCADDRESS(WTGETA , WTGetA);
GETPROCADDRESS(WTSETA , WTSetA);
GETPROCADDRESS(WTCLOSE , WTClose);
GETPROCADDRESS(WTPACKET , WTPacket);
GETPROCADDRESS(WTENABLE , WTEnable);
GETPROCADDRESS(WTOVERLAP , WTOverlap);
GETPROCADDRESS(WTSAVE , WTSave);
GETPROCADDRESS(WTCONFIG , WTConfig);
GETPROCADDRESS(WTRESTORE , WTRestore);
GETPROCADDRESS(WTEXTSET , WTExtSet);
GETPROCADDRESS(WTEXTGET , WTExtGet);
GETPROCADDRESS(WTQUEUESIZESET , WTQueueSizeSet);
GETPROCADDRESS(WTDATAPEEK , WTDataPeek);
GETPROCADDRESS(WTPACKETSGET , WTPacketsGet);
GETPROCADDRESS(WTMGROPEN , WTMgrOpen);
GETPROCADDRESS(WTMGRCLOSE , WTMgrClose);
GETPROCADDRESS(WTMGRDEFCONTEXT , WTMgrDefContext);
GETPROCADDRESS(WTMGRDEFCONTEXTEX , WTMgrDefContextEx);
}
if (!EasyTab->WTInfoA(0, 0, NULL))
{
OutputDebugStringA("Wintab services not available.\n");
return EASYTAB_WACOM_WIN32_ERROR;
}
// Open context
{
LOGCONTEXTA LogContext = {0};
AXIS RangeX = {0};
AXIS RangeY = {0};
AXIS Pressure = {0};
EasyTab->WTInfoA(WTI_DDCTXS, 0, &LogContext);
EasyTab->WTInfoA(WTI_DEVICES, DVC_X, &RangeX);
EasyTab->WTInfoA(WTI_DEVICES, DVC_Y, &RangeY);
EasyTab->WTInfoA(WTI_DEVICES, DVC_NPRESSURE, &Pressure);
LogContext.lcPktData = PACKETDATA; // ??
LogContext.lcOptions |= CXO_MESSAGES;
if (MoveCursor) { LogContext.lcOptions |= CXO_SYSTEM; }
LogContext.lcPktMode = PACKETMODE;
LogContext.lcMoveMask = PACKETDATA;
LogContext.lcBtnUpMask = LogContext.lcBtnDnMask;
LogContext.lcOutOrgX = 0;
LogContext.lcOutOrgY = 0;
LogContext.lcOutExtX = GetSystemMetrics(SM_CXSCREEN);
LogContext.lcOutExtY = -GetSystemMetrics(SM_CYSCREEN);
LogContext.lcSysOrgX = 0;
LogContext.lcSysOrgY = 0;
LogContext.lcSysExtX = GetSystemMetrics(SM_CXSCREEN);
LogContext.lcSysExtY = GetSystemMetrics(SM_CYSCREEN);
if (TrackingMode == EASYTAB_TRACKING_MODE_RELATIVE)
{
LogContext.lcPktMode |= PK_X | PK_Y; // TODO: Should this be included in the
// PACKETMODE macro define up top?
LogContext.lcSysMode = 1;
if (RelativeModeSensitivity > 1.0f)
{
RelativeModeSensitivity = 1.0f;
}
else if (RelativeModeSensitivity < 0.0f)
{
RelativeModeSensitivity = 0.0f;
}
// Wintab expects sensitivity to be a 32-bit fixed point number
// with the radix point between the two words. Thus, the type
// contains 16 bits to the left of the radix point and 16 bits to
// the right of it.
//
// 0x10000 Hex
// = 65,536 Decimal
// = 0000 0000 0000 0001 . 0000 0000 0000 0000 Binary
// = 1.0 Fixed Point
uint32_t Sensitivity = (uint32_t)(0x10000 * RelativeModeSensitivity);
if (MoveCursor)
{
LogContext.lcSysSensX = LogContext.lcSysSensY = Sensitivity;
}
else
{
LogContext.lcSensX = LogContext.lcSensY = Sensitivity;
}
}
EasyTab->Context = EasyTab->WTOpenA(Window, &LogContext, TRUE);
if (!EasyTab->Context)
{
OutputDebugStringA("Wintab context couldn't be opened.\n");
return EASYTAB_WACOM_WIN32_ERROR;
}
// Get tablet capabilites
{
EasyTab->MaxPressure = Pressure.axMax;
EasyTab->RangeX = RangeX.axMax;
EasyTab->RangeY = RangeY.axMax;
}
}
return EASYTAB_OK;
}
#undef GETPROCADDRESS
EasyTabResult EasyTab_HandleEvent(HWND Window, UINT Message, LPARAM LParam, WPARAM WParam)
{
PACKET Packet = { 0 };
if (Message == WT_PACKET &&
(HCTX)LParam == EasyTab->Context &&
EasyTab->WTPacket(EasyTab->Context, (UINT)WParam, &Packet))
{
POINT Point = { 0 };
Point.x = Packet.pkX;
Point.y = Packet.pkY;
ScreenToClient(Window, &Point);
EasyTab->PosX = Point.x;
EasyTab->PosY = Point.y;
EasyTab->Pressure = (float)Packet.pkNormalPressure / (float)EasyTab->MaxPressure;
EasyTab->Buttons = Packet.pkButtons;
return EASYTAB_OK;
}
return EASYTAB_EVENT_NOT_HANDLED;
}
void EasyTab_Unload()
{
if (EasyTab->Context) { EasyTab->WTClose(EasyTab->Context); }
if (EasyTab->Dll) { FreeLibrary(EasyTab->Dll); }
free(EasyTab);
EasyTab = NULL;
}
#endif // WIN32
// -----------------------------------------------------------------------------
#endif // EASYTAB_IMPLEMENTATION