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/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* @file src/ginput/ginput_mouse.c
* @brief GINPUT mouse/touch code.
*/
#include "../../gfx.h"
#if GFX_USE_GINPUT && GINPUT_NEED_MOUSE
// Just to make code easier
#if !GFX_USE_GDISP
#define GDISP 0
#endif
// Local Settings
#define CALIBRATION_POLL_PERIOD 20 // milliseconds
#define CALIBRATION_MINPRESS_PERIOD 300 // milliseconds
#define CALIBRATION_MAXPRESS_PERIOD 5000 // milliseconds
#ifdef GINPUT_TOUCH_CALIBRATION_FONT1
#define CALIBRATION_FONT1 GINPUT_TOUCH_CALIBRATION_FONT1
#else
#define CALIBRATION_FONT1 "* Double"
#endif
#ifdef GINPUT_TOUCH_CALIBRATION_FONT2
#define CALIBRATION_FONT2 GINPUT_TOUCH_CALIBRATION_FONT2
#else
#define CALIBRATION_FONT2 "* Narrow"
#endif
#define CALIBRATION_BACKGROUND GFX_BLUE
#define CALIBRATION_CROSS_COLOR1 GFX_WHITE
#define CALIBRATION_CROSS_COLOR2 RGB2COLOR(184,158,131)
#define CALIBRATION_CROSS_INNERGAP 2
#define CALIBRATION_CROSS_RADIUS 15
#ifdef GINPUT_TOUCH_CALIBRATION_TITLE
#define CALIBRATION_TITLE GINPUT_TOUCH_CALIBRATION_TITLE
#else
#define CALIBRATION_TITLE "Calibration"
#endif
#define CALIBRATION_TITLE_Y 5
#define CALIBRATION_TITLE_HEIGHT 30
#define CALIBRATION_TITLE_COLOR GFX_WHITE
#define CALIBRATION_TITLE_BACKGROUND GFX_BLUE
#ifdef GINPUT_TOUCH_CALIBRATION_ERROR
#define CALIBRATION_ERROR_TEXT GINPUT_TOUCH_CALIBRATION_ERROR
#else
#define CALIBRATION_ERROR_TEXT "Calibration Failed!"
#endif
#define CALIBRATION_ERROR_DELAY 3000
#define CALIBRATION_ERROR_COLOR GFX_RED
#define CALIBRATION_ERROR_BACKGROUND GFX_YELLOW
#define CALIBRATION_ERROR_Y 35
#define CALIBRATION_ERROR_HEIGHT 40
// Get the mouse driver interface
#include "ginput_driver_mouse.h"
// The mouse poll timer
static GTIMER_DECL(MouseTimer);
// Calibration application
#if !GINPUT_TOUCH_NOCALIBRATE
#include <string.h> // Required for memcpy
static GFXINLINE void CalibrationTransform(GMouseReading *pt, const GMouseCalibration *c) {
gCoord x, y;
x = (gCoord) (c->ax * pt->x + c->bx * pt->y + c->cx);
y = (gCoord) (c->ay * pt->x + c->by * pt->y + c->cy);
pt->x = x;
pt->y = y;
}
#endif
static void SendMouseEvent(GSourceListener *psl, GMouse *m, GMouseReading *r) {
GEventMouse *pe;
// If there is no event buffer just mark a missed event
if (!(pe = (GEventMouse *)geventGetEventBuffer(psl))) {
// This listener is missing - save the meta events that have happened
psl->srcflags |= ((r->buttons & GMETA_MASK)|GINPUT_MISSED_MOUSE_EVENT);
return;
}
// If we haven't really moved (and there are no meta events) don't bother sending the event
if (!(r->buttons & GMETA_MASK) && !psl->srcflags && !(psl->listenflags & GLISTEN_MOUSENOFILTER)
&& r->x == m->r.x && r->y == m->r.y && (r->buttons & GINPUT_MOUSE_BTN_MASK) == (m->r.buttons & GINPUT_MOUSE_BTN_MASK))
return;
// Send the event only if we are listening for it
if (!((r->buttons & GINPUT_MOUSE_BTN_LEFT) && (psl->listenflags & GLISTEN_MOUSEDOWNMOVES))
&& !(!(r->buttons & GINPUT_MOUSE_BTN_LEFT) && (psl->listenflags & GLISTEN_MOUSEUPMOVES))
&& !((r->buttons & GMETA_MASK) && (psl->listenflags & GLISTEN_MOUSEMETA)))
return;
#if !GINPUT_TOUCH_NOTOUCH
pe->type = (gmvmt(m)->d.flags & GMOUSE_VFLG_TOUCH) ? GEVENT_TOUCH : GEVENT_MOUSE;
#else
pe->type = GEVENT_MOUSE;
#endif
pe->x = r->x;
pe->y = r->y;
pe->z = r->z;
pe->buttons = r->buttons | psl->srcflags;
psl->srcflags = 0;
pe->display = m->display;
geventSendEvent(psl);
}
static void GetMouseReading(GMouse *m) {
GMouseReading r;
// Step 1 - Get the Raw Reading
{
m->flags &= ~GMOUSE_FLG_NEEDREAD;
if (!gmvmt(m)->get(m, &r))
return;
}
// Step 2 - Handle touch and button 0 debouncing
{
// Clean off button garbage
r.buttons &= GINPUT_MOUSE_BTN_MASK;
#if !GINPUT_TOUCH_NOTOUCH
// If touch then calculate button 0 from z
if ((gmvmt(m)->d.flags & GMOUSE_VFLG_TOUCH)) {
if (gmvmt(m)->z_min <= gmvmt(m)->z_max) {
if (r.z >= gmvmt(m)->z_touchon) r.buttons |= GINPUT_MOUSE_BTN_LEFT;
else if (r.z <= gmvmt(m)->z_touchoff) r.buttons &= ~GINPUT_MOUSE_BTN_LEFT;
else return; // bad transitional reading
} else {
if (r.z <= gmvmt(m)->z_touchon) r.buttons |= GINPUT_MOUSE_BTN_LEFT;
else if (r.z >= gmvmt(m)->z_touchoff) r.buttons &= ~GINPUT_MOUSE_BTN_LEFT;
else return; // bad transitional reading
}
}
// Devices with poor button 0 transitioning need debouncing
if ((gmvmt(m)->d.flags & GMOUSE_VFLG_POORUPDOWN)) {
// Are we in a transition test
if ((m->flags & GMOUSE_FLG_INDELTA)) {
if (!((r.buttons ^ m->r.buttons) & GINPUT_MOUSE_BTN_LEFT)) {
// Transition failed
m->flags &= ~GMOUSE_FLG_INDELTA;
return;
}
// Transition succeeded
m->flags &= ~GMOUSE_FLG_INDELTA;
// Should we start a transition test
} else if (((r.buttons ^ m->r.buttons) & GINPUT_MOUSE_BTN_LEFT)) {
m->flags |= GMOUSE_FLG_INDELTA;
return;
}
}
#endif
#if !GINPUT_TOUCH_NOCALIBRATE_GUI
// Stop here with just the raw x,y reading during calibration
if ((m->flags & GMOUSE_FLG_IN_CAL)) {
if ((r.buttons & GINPUT_MOUSE_BTN_LEFT)) {
m->r.x = r.x;
m->r.y = r.y;
}
m->r.buttons = r.buttons;
return;
}
#endif
}
// Step 3 - Apply calibration, rotation and display clipping
{
// If the mouse is up we may need to keep our previous position
if ((gmvmt(m)->d.flags & GMOUSE_VFLG_ONLY_DOWN) && !(r.buttons & GINPUT_MOUSE_BTN_LEFT)) {
r.x = m->r.x;
r.y = m->r.y;
} else {
#if !GINPUT_TOUCH_NOCALIBRATE
// Do we need to calibrate the reading?
if ((m->flags & GMOUSE_FLG_CALIBRATE))
CalibrationTransform(&r, &m->caldata);
#endif
// We can't clip or rotate if we don't have a display
if (m->display) {
gCoord w, h;
// We now need display information
w = gdispGGetWidth(m->display);
h = gdispGGetHeight(m->display);
#if GDISP_NEED_CONTROL
// Do we need to rotate the reading to match the display
if (!(gmvmt(m)->d.flags & GMOUSE_VFLG_SELFROTATION)) {
gCoord t;
switch(gdispGGetOrientation(m->display)) {
case GDISP_ROTATE_0:
break;
case GDISP_ROTATE_90:
t = r.x;
r.x = w - 1 - r.y;
r.y = t;
break;
case GDISP_ROTATE_180:
r.x = w - 1 - r.x;
r.y = h - 1 - r.y;
break;
case GDISP_ROTATE_270:
t = r.y;
r.y = h - 1 - r.x;
r.x = t;
break;
default:
break;
}
}
#endif
// Do we need to clip the reading to the display
if ((m->flags & GMOUSE_FLG_CLIP)) {
if (r.x < 0) r.x = 0;
else if (r.x >= w) r.x = w-1;
if (r.y < 0) r.y = 0;
else if (r.y >= h) r.y = h-1;
}
}
}
}
// Step 4 - Apply jitter detection
#if !GINPUT_TOUCH_NOTOUCH
{
const GMouseJitter *pj;
uint32_t diff;
// Are we in pen or finger mode
pj = (m->flags & GMOUSE_FLG_FINGERMODE) ? &gmvmt(m)->finger_jitter : &gmvmt(m)->pen_jitter;
// Is this just movement jitter
if (pj->move > 0) {
diff = (uint32_t)(r.x - m->r.x) * (uint32_t)(r.x - m->r.x) + (uint32_t)(r.y - m->r.y) * (uint32_t)(r.y - m->r.y);
if (diff < (uint32_t)pj->move * (uint32_t)pj->move) {
r.x = m->r.x;
r.y = m->r.y;
}
}
// Check if the click has moved outside the click area and if so cancel the click
if (pj->click > 0 && (m->flags & GMOUSE_FLG_CLICK_TIMER)) {
diff = (uint32_t)(r.x - m->clickpos.x) * (uint32_t)(r.x - m->clickpos.x) + (uint32_t)(r.y - m->clickpos.y) * (uint32_t)(r.y - m->clickpos.y);
if (diff > (uint32_t)pj->click * (uint32_t)pj->click)
m->flags &= ~GMOUSE_FLG_CLICK_TIMER;
}
}
#endif
// Step 5 - Click, context-click and other meta event detection
{
uint16_t upbtns, dnbtns;
// Calculate button transitions
dnbtns = r.buttons & ~m->r.buttons;
upbtns = ~r.buttons & m->r.buttons;
// Left mouse down generates the Mouse-down meta event
if ((dnbtns & GINPUT_MOUSE_BTN_LEFT))
r.buttons |= GMETA_MOUSE_DOWN;
// Left mouse up generates the Mouse-up meta event
if ((upbtns & GINPUT_MOUSE_BTN_LEFT))
r.buttons |= GMETA_MOUSE_UP;
// Left/Right mouse down starts the click timer
if ((dnbtns & (GINPUT_MOUSE_BTN_LEFT|GINPUT_MOUSE_BTN_RIGHT))) {
m->clickpos.x = r.x;
m->clickpos.y = r.y;
m->clicktime = gfxSystemTicks();
m->flags |= GMOUSE_FLG_CLICK_TIMER;
}
// Left/Right mouse up with the click timer still running may generate a click or context click
if ((upbtns & (GINPUT_MOUSE_BTN_LEFT|GINPUT_MOUSE_BTN_RIGHT)) && (m->flags & GMOUSE_FLG_CLICK_TIMER)) {
m->flags &= ~GMOUSE_FLG_CLICK_TIMER;
m->clicktime = gfxSystemTicks() - m->clicktime;
// Was this a short click?
if (m->clicktime <= gfxMillisecondsToTicks(GINPUT_MOUSE_CLICK_TIME)) {
if ((upbtns & GINPUT_MOUSE_BTN_RIGHT))
r.buttons |= GMETA_MOUSE_CXTCLICK;
if ((upbtns & GINPUT_MOUSE_BTN_LEFT))
r.buttons |= GMETA_MOUSE_CLICK;
}
#if !GINPUT_TOUCH_NOTOUCH
// Was this a long click on a touch device?
if ((gmvmt(m)->d.flags & GMOUSE_VFLG_TOUCH) && m->clicktime >= gfxMillisecondsToTicks(GINPUT_TOUCH_CXTCLICK_TIME))
r.buttons |= GMETA_MOUSE_CXTCLICK;
#endif
}
}
// Step 6 - Send the event to the listeners that are interested.
{
GSourceListener *psl;
// Send to the "All Mice" source listeners
psl = 0;
while ((psl = geventGetSourceListener((GSourceHandle)&MouseTimer, psl)))
SendMouseEvent(psl, m, &r);
// Send to the mouse specific source listeners
psl = 0;
while ((psl = geventGetSourceListener((GSourceHandle)m, psl)))
SendMouseEvent(psl, m, &r);
}
// Step 7 - Finally save the results
m->r.x = r.x;
m->r.y = r.y;
m->r.z = r.z;
m->r.buttons = r.buttons;
}
static void MousePoll(void *param) {
GMouse * m;
(void) param;
for(m = (GMouse *)gdriverGetNext(GDRIVER_TYPE_MOUSE, 0); m; m = (GMouse *)gdriverGetNext(GDRIVER_TYPE_MOUSE, (GDriver *)m)) {
if (!(gmvmt(m)->d.flags & GMOUSE_VFLG_NOPOLL) || (m->flags & GMOUSE_FLG_NEEDREAD))
GetMouseReading(m);
}
}
// Calibration user interface
#if !GINPUT_TOUCH_NOCALIBRATE_GUI
#if !defined(GFX_USE_GDISP) || !GFX_USE_GDISP
#error "GINPUT: GFX_USE_GDISP must be defined when calibration is required"
#endif
static GFXINLINE void CalibrationCrossDraw(GMouse *m, const gPoint *pp) {
gdispGDrawLine(m->display, pp->x-CALIBRATION_CROSS_RADIUS, pp->y, pp->x-CALIBRATION_CROSS_INNERGAP, pp->y, CALIBRATION_CROSS_COLOR1);
gdispGDrawLine(m->display, pp->x+CALIBRATION_CROSS_INNERGAP, pp->y, pp->x+CALIBRATION_CROSS_RADIUS, pp->y, CALIBRATION_CROSS_COLOR1);
gdispGDrawLine(m->display, pp->x, pp->y-CALIBRATION_CROSS_RADIUS, pp->x, pp->y-CALIBRATION_CROSS_INNERGAP, CALIBRATION_CROSS_COLOR1);
gdispGDrawLine(m->display, pp->x, pp->y+CALIBRATION_CROSS_INNERGAP, pp->x, pp->y+CALIBRATION_CROSS_RADIUS, CALIBRATION_CROSS_COLOR1);
gdispGDrawLine(m->display, pp->x-CALIBRATION_CROSS_RADIUS, pp->y+CALIBRATION_CROSS_RADIUS, pp->x-CALIBRATION_CROSS_RADIUS/2, pp->y+CALIBRATION_CROSS_RADIUS, CALIBRATION_CROSS_COLOR2);
gdispGDrawLine(m->display, pp->x-CALIBRATION_CROSS_RADIUS, pp->y+CALIBRATION_CROSS_RADIUS/2, pp->x-CALIBRATION_CROSS_RADIUS, pp->y+CALIBRATION_CROSS_RADIUS, CALIBRATION_CROSS_COLOR2);
gdispGDrawLine(m->display, pp->x-CALIBRATION_CROSS_RADIUS, pp->y-CALIBRATION_CROSS_RADIUS, pp->x-CALIBRATION_CROSS_RADIUS/2, pp->y-CALIBRATION_CROSS_RADIUS, CALIBRATION_CROSS_COLOR2);
gdispGDrawLine(m->display, pp->x-CALIBRATION_CROSS_RADIUS, pp->y-CALIBRATION_CROSS_RADIUS/2, pp->x-CALIBRATION_CROSS_RADIUS, pp->y-CALIBRATION_CROSS_RADIUS, CALIBRATION_CROSS_COLOR2);
gdispGDrawLine(m->display, pp->x+CALIBRATION_CROSS_RADIUS/2, pp->y+CALIBRATION_CROSS_RADIUS, pp->x+CALIBRATION_CROSS_RADIUS, pp->y+CALIBRATION_CROSS_RADIUS, CALIBRATION_CROSS_COLOR2);
gdispGDrawLine(m->display, pp->x+CALIBRATION_CROSS_RADIUS, pp->y+CALIBRATION_CROSS_RADIUS/2, pp->x+CALIBRATION_CROSS_RADIUS, pp->y+CALIBRATION_CROSS_RADIUS, CALIBRATION_CROSS_COLOR2);
gdispGDrawLine(m->display, pp->x+CALIBRATION_CROSS_RADIUS/2, pp->y-CALIBRATION_CROSS_RADIUS, pp->x+CALIBRATION_CROSS_RADIUS, pp->y-CALIBRATION_CROSS_RADIUS, CALIBRATION_CROSS_COLOR2);
gdispGDrawLine(m->display, pp->x+CALIBRATION_CROSS_RADIUS, pp->y-CALIBRATION_CROSS_RADIUS, pp->x+CALIBRATION_CROSS_RADIUS, pp->y-CALIBRATION_CROSS_RADIUS/2, CALIBRATION_CROSS_COLOR2);
}
static GFXINLINE void CalibrationCrossClear(GMouse *m, const gPoint *pp) {
gdispGFillArea(m->display, pp->x - CALIBRATION_CROSS_RADIUS, pp->y - CALIBRATION_CROSS_RADIUS, CALIBRATION_CROSS_RADIUS*2+1, CALIBRATION_CROSS_RADIUS*2+1, CALIBRATION_BACKGROUND);
}
static GFXINLINE void CalibrationCalculate(GMouse *m, const gPoint *cross, const gPoint *points) {
float dx;
gCoord c0, c1, c2;
(void) m;
// Work on x values
c0 = cross[0].x;
c1 = cross[1].x;
c2 = cross[2].x;
#if GDISP_NEED_CONTROL
if (!(gmvmt(m)->d.flags & GMOUSE_VFLG_SELFROTATION)) {
/* Convert all cross points back to GDISP_ROTATE_0 convention
* before calculating the calibration matrix.
*/
switch(gdispGGetOrientation(m->display)) {
case GDISP_ROTATE_90:
c0 = cross[0].y;
c1 = cross[1].y;
c2 = cross[2].y;
break;
case GDISP_ROTATE_180:
c0 = c1 = c2 = gdispGGetWidth(m->display) - 1;
c0 -= cross[0].x;
c1 -= cross[1].x;
c2 -= cross[2].x;
break;
case GDISP_ROTATE_270:
c0 = c1 = c2 = gdispGGetHeight(m->display) - 1;
c0 -= cross[0].y;
c1 -= cross[1].y;
c2 -= cross[2].y;
break;
default:
break;
}
}
#endif
/* Compute all the required determinants */
dx = (float)(points[0].x - points[2].x) * (float)(points[1].y - points[2].y)
- (float)(points[1].x - points[2].x) * (float)(points[0].y - points[2].y);
m->caldata.ax = ((float)(c0 - c2) * (float)(points[1].y - points[2].y)
- (float)(c1 - c2) * (float)(points[0].y - points[2].y)) / dx;
m->caldata.bx = ((float)(c1 - c2) * (float)(points[0].x - points[2].x)
- (float)(c0 - c2) * (float)(points[1].x - points[2].x)) / dx;
m->caldata.cx = (c0 * ((float)points[1].x * (float)points[2].y - (float)points[2].x * (float)points[1].y)
- c1 * ((float)points[0].x * (float)points[2].y - (float)points[2].x * (float)points[0].y)
+ c2 * ((float)points[0].x * (float)points[1].y - (float)points[1].x * (float)points[0].y)) / dx;
// Work on y values
c0 = cross[0].y;
c1 = cross[1].y;
c2 = cross[2].y;
#if GDISP_NEED_CONTROL
if (!(gmvmt(m)->d.flags & GMOUSE_VFLG_SELFROTATION)) {
switch(gdispGGetOrientation(m->display)) {
case GDISP_ROTATE_90:
c0 = c1 = c2 = gdispGGetWidth(m->display) - 1;
c0 -= cross[0].x;
c1 -= cross[1].x;
c2 -= cross[2].x;
break;
case GDISP_ROTATE_180:
c0 = c1 = c2 = gdispGGetHeight(m->display) - 1;
c0 -= cross[0].y;
c1 -= cross[1].y;
c2 -= cross[2].y;
break;
case GDISP_ROTATE_270:
c0 = cross[0].x;
c1 = cross[1].x;
c2 = cross[2].x;
break;
default:
break;
}
}
#endif
m->caldata.ay = ((float)(c0 - c2) * (float)(points[1].y - points[2].y)
- (float)(c1 - c2) * (float)(points[0].y - points[2].y)) / dx;
m->caldata.by = ((float)(c1 - c2) * (float)(points[0].x - points[2].x)
- (float)(c0 - c2) * (float)(points[1].x - points[2].x)) / dx;
m->caldata.cy = (c0 * ((float)points[1].x * (float)points[2].y - (float)points[2].x * (float)points[1].y)
- c1 * ((float)points[0].x * (float)points[2].y - (float)points[2].x * (float)points[0].y)
+ c2 * ((float)points[0].x * (float)points[1].y - (float)points[1].x * (float)points[0].y)) / dx;
}
static uint32_t CalibrateMouse(GMouse *m) {
gCoord w, h;
gPoint cross[4]; // The locations of the test points on the display
gPoint points[4]; // The x, y readings obtained from the mouse for each test point
uint32_t err;
#if GDISP_NEED_TEXT
font_t font1, font2;
#endif
#if GDISP_NEED_TEXT
font1 = gdispOpenFont(CALIBRATION_FONT1);
if (!font1) font1 = gdispOpenFont("*");
font2 = gdispOpenFont(CALIBRATION_FONT2);
if (!font2) font2 = gdispOpenFont("*");
#endif
err = 0;
w = gdispGGetWidth(m->display);
h = gdispGGetHeight(m->display);
#if GDISP_NEED_CLIP
gdispGSetClip(m->display, 0, 0, w, h);
#endif
// Ensure we get minimally processed readings for the calibration
m->flags |= GMOUSE_FLG_IN_CAL;
// Set up our calibration locations
if ((gmvmt(m)->d.flags & GMOUSE_VFLG_CAL_EXTREMES)) {
cross[0].x = 0; cross[0].y = 0;
cross[1].x = w-1; cross[1].y = 0;
cross[2].x = w-1; cross[2].y = h-1;
cross[3].x = w/2; cross[3].y = h/2;
} else {
cross[0].x = w/4; cross[0].y = h/4;
cross[1].x = w-w/4; cross[1].y = h/4;
cross[2].x = w-w/4; cross[2].y = h-h/4;
cross[3].x = w/2; cross[3].y = h/2;
}
// Set up the calibration display
gdispGClear(m->display, GFX_BLUE);
#if GDISP_NEED_TEXT
gdispGFillStringBox(m->display,
0, CALIBRATION_TITLE_Y, w, CALIBRATION_TITLE_HEIGHT,
CALIBRATION_TITLE, font1, CALIBRATION_TITLE_COLOR, CALIBRATION_TITLE_BACKGROUND,
gJustifyCenter);
#endif
// Calculate the calibration
{
unsigned i, maxpoints;
maxpoints = (gmvmt(m)->d.flags & GMOUSE_VFLG_CAL_TEST) ? 4 : 3;
// Loop through the calibration points
for(i = 0; i < maxpoints; i++) {
int32_t px, py;
unsigned j;
// Draw the current calibration point
CalibrationCrossDraw(m, &cross[i]);
// Get a valid "point pressed" average reading
do {
// Wait for the mouse to be pressed
while(!(m->r.buttons & GINPUT_MOUSE_BTN_LEFT))
gfxSleepMilliseconds(CALIBRATION_POLL_PERIOD);
// Sum samples taken every CALIBRATION_POLL_PERIOD milliseconds while the mouse is down
px = py = j = 0;
while((m->r.buttons & GINPUT_MOUSE_BTN_LEFT)) {
// Limit sampling period to prevent overflow
if (j < CALIBRATION_MAXPRESS_PERIOD/CALIBRATION_POLL_PERIOD) {
px += m->r.x;
py += m->r.y;
j++;
}
gfxSleepMilliseconds(CALIBRATION_POLL_PERIOD);
}
// Ignore presses less than CALIBRATION_MINPRESS_PERIOD milliseconds
} while(j < CALIBRATION_MINPRESS_PERIOD/CALIBRATION_POLL_PERIOD);
points[i].x = px / j;
points[i].y = py / j;
// Clear the current calibration point
CalibrationCrossClear(m, &cross[i]);
}
}
// Apply 3 point calibration algorithm
CalibrationCalculate(m, cross, points);
/* Verification of correctness of calibration (optional) :
* See if the 4th point (Middle of the screen) coincides with the calibrated
* result. If point is within +/- Squareroot(ERROR) pixel margin, then successful calibration
* Else return the error.
*/
if ((gmvmt(m)->d.flags & GMOUSE_VFLG_CAL_TEST)) {
const GMouseJitter *pj;
// Are we in pen or finger mode
pj = (m->flags & GMOUSE_FLG_FINGERMODE) ? &gmvmt(m)->finger_jitter : &gmvmt(m)->pen_jitter;
// Transform the co-ordinates
CalibrationTransform((GMouseReading *)&points[3], &m->caldata);
// Do we need to rotate the reading to match the display
#if GDISP_NEED_CONTROL
if (!(gmvmt(m)->d.flags & GMOUSE_VFLG_SELFROTATION)) {
gCoord t;
switch(gdispGGetOrientation(m->display)) {
case GDISP_ROTATE_0:
break;
case GDISP_ROTATE_90:
t = points[3].x;
points[3].x = w - 1 - points[3].y;
points[3].y = t;
break;
case GDISP_ROTATE_180:
points[3].x = w - 1 - points[3].x;
points[3].y = h - 1 - points[3].y;
break;
case GDISP_ROTATE_270:
t = points[3].y;
points[3].y = h - 1 - points[3].x;
points[3].x = t;
break;
default:
break;
}
}
#endif
// Is this accurate enough?
err = (points[3].x - cross[3].x) * (points[3].x - cross[3].x) + (points[3].y - cross[3].y) * (points[3].y - cross[3].y);
if (err > (uint32_t)pj->calibrate * (uint32_t)pj->calibrate) {
#if GDISP_NEED_TEXT
// No - Display error and return
gdispGFillStringBox(m->display,
0, CALIBRATION_ERROR_Y, w, CALIBRATION_ERROR_HEIGHT,
CALIBRATION_ERROR_TEXT, font2, CALIBRATION_ERROR_COLOR, CALIBRATION_ERROR_BACKGROUND,
gJustifyCenter);
gfxSleepMilliseconds(CALIBRATION_ERROR_DELAY);
#endif
} else
err = 0;
}
// We are done calibrating
#if GDISP_NEED_TEXT
gdispCloseFont(font1);
gdispCloseFont(font2);
#endif
m->flags &= ~GMOUSE_FLG_IN_CAL;
m->flags |= GMOUSE_FLG_CLIP;
// Save the calibration data (if possible)
if (!err) {
m->flags |= GMOUSE_FLG_CALIBRATE;
#if GINPUT_TOUCH_USER_CALIBRATION_SAVE
SaveMouseCalibration(gdriverGetDriverInstanceNumber((GDriver *)m), &m->caldata, sizeof(GMouseCalibration));
#endif
if (gmvmt(m)->calsave)
gmvmt(m)->calsave(m, &m->caldata, sizeof(GMouseCalibration));
}
// Force an initial reading
m->r.buttons = 0;
GetMouseReading(m);
// Clear the screen using the GWIN default background color
#if GFX_USE_GWIN
gdispGClear(m->display, gwinGetDefaultBgColor());
#else
gdispGClear(m->display, GDISP_STARTUP_COLOR);
#endif
return err;
}
#endif
void _gmouseInit(void) {
// GINPUT_MOUSE_DRIVER_LIST is defined - create each driver instance
#if defined(GINPUT_MOUSE_DRIVER_LIST)
{
int i;
typedef const GMouseVMT const GMOUSEVMTLIST[1];
extern GMOUSEVMTLIST GINPUT_MOUSE_DRIVER_LIST;
static const GMouseVMT * const dclist[] = {GINPUT_MOUSE_DRIVER_LIST};
for(i = 0; i < sizeof(dclist)/sizeof(dclist[0]); i++) {
if (!(dclist[i]->d.flags & GMOUSE_VFLG_DYNAMICONLY))
gdriverRegister(&dclist[i]->d, GDISP);
}
}
// One and only one mouse
#else
{
extern const GMouseVMT const GMOUSEVMT_OnlyOne[1];
if (!(GMOUSEVMT_OnlyOne->d.flags & GMOUSE_VFLG_DYNAMICONLY))
gdriverRegister(&GMOUSEVMT_OnlyOne->d, GDISP);
}
#endif
}
void _gmouseDeinit(void) {
gtimerDeinit(&MouseTimer);
}
gBool _gmouseInitDriver(GDriver *g, void *display, unsigned driverinstance, unsigned systeminstance) {
#define m ((GMouse *)g)
(void) systeminstance;
// The initial display is passed in the parameter for mice
m->display = display;
#if !GINPUT_TOUCH_NOTOUCH
// Should this mouse start in finger mode? (according to the VMT)
if ((gmvmt(m)->d.flags & GMOUSE_VFLG_DEFAULTFINGER))
m->flags |= GMOUSE_FLG_FINGERMODE;
#endif
// Init the mouse
if (!gmvmt(m)->init((GMouse *)g, driverinstance))
return gFalse;
// Ensure the Poll timer is started
if (!gtimerIsActive(&MouseTimer))
gtimerStart(&MouseTimer, MousePoll, 0, gTrue, GINPUT_MOUSE_POLL_PERIOD);
return gTrue;
#undef m
}
void _gmousePostInitDriver(GDriver *g) {
#define m ((GMouse *)g)
#if !GINPUT_TOUCH_STARTRAW
m->flags |= GMOUSE_FLG_CLIP;
#endif
#if !GINPUT_TOUCH_NOCALIBRATE && !GINPUT_TOUCH_STARTRAW
if ((gmvmt(m)->d.flags & GMOUSE_VFLG_CALIBRATE)) {
#if GINPUT_TOUCH_USER_CALIBRATION_LOAD
if (LoadMouseCalibration(gdriverGetDriverInstanceNumber((GDriver *)m), &m->caldata, sizeof(GMouseCalibration)))
m->flags |= GMOUSE_FLG_CALIBRATE;
else
#endif
if (gmvmt(m)->calload && gmvmt(m)->calload(m, &m->caldata, sizeof(GMouseCalibration)))
m->flags |= GMOUSE_FLG_CALIBRATE;
#if !GINPUT_TOUCH_NOCALIBRATE_GUI
else
while (CalibrateMouse(m));
#endif
}
#endif
// Get the first reading
GetMouseReading(m);
#undef m
}
void _gmouseDeInitDriver(GDriver *g) {
(void) g;
}
GSourceHandle ginputGetMouse(unsigned instance) {
if (instance == GMOUSE_ALL_INSTANCES)
return (GSourceHandle)&MouseTimer;
return (GSourceHandle)gdriverGetInstance(GDRIVER_TYPE_MOUSE, instance);
}
void ginputSetMouseDisplay(unsigned instance, GDisplay *g) {
GMouse *m;
if (!(m = (GMouse *)gdriverGetInstance(GDRIVER_TYPE_MOUSE, instance)))
return;
m->display = g ? g : GDISP;
}
GDisplay *ginputGetMouseDisplay(unsigned instance) {
GMouse *m;
if (!(m = (GMouse *)gdriverGetInstance(GDRIVER_TYPE_MOUSE, instance)))
return 0;
return m->display;
}
gBool ginputGetMouseStatus(unsigned instance, GEventMouse *pe) {
GMouse *m;
// Win32 threads don't seem to recognise priority and/or pre-emption
// so we add a sleep here to prevent 100% polled applications from locking up.
gfxSleepMilliseconds(1);
if (!(m = (GMouse *)gdriverGetInstance(GDRIVER_TYPE_MOUSE, instance)))
return gFalse;
#if !GINPUT_TOUCH_NOCALIBRATE_GUI
if ((m->flags & GMOUSE_FLG_IN_CAL))
return gFalse;
#endif
#if !GINPUT_TOUCH_NOTOUCH
pe->type = (gmvmt(m)->d.flags & GMOUSE_VFLG_TOUCH) ? GEVENT_TOUCH : GEVENT_MOUSE;
#else
pe->type = GEVENT_MOUSE;
#endif
pe->x = m->r.x;
pe->y = m->r.y;
pe->z = m->r.z;
pe->buttons = m->r.buttons;
pe->display = m->display;
return gTrue;
}
#if !GINPUT_TOUCH_NOTOUCH
void ginputSetFingerMode(unsigned instance, gBool on) {
GMouse *m;
if (!(m = (GMouse *)gdriverGetInstance(GDRIVER_TYPE_MOUSE, instance)))
return;
if (on)
m->flags |= GMOUSE_FLG_FINGERMODE;
else
m->flags &= ~GMOUSE_FLG_FINGERMODE;
}
#endif
#if !GINPUT_TOUCH_NOCALIBRATE_GUI
uint32_t ginputCalibrateMouse(unsigned instance) {
GMouse *m;
// Find the instance
if (!(m = (GMouse *)gdriverGetInstance(GDRIVER_TYPE_MOUSE, instance)))
return 0;
// Check it needs calibration
if (!(gmvmt(m)->d.flags & GMOUSE_VFLG_CALIBRATE))
return 0;
return CalibrateMouse(m);
}
#endif
/* Wake up the mouse driver from an interrupt service routine (there may be new readings available) */
void _gmouseWakeup(GMouse *m) {
if (m)
m->flags |= GMOUSE_FLG_NEEDREAD;
gtimerJab(&MouseTimer);
}
/* Wake up the mouse driver from an interrupt service routine (there may be new readings available) */
void _gmouseWakeupI(GMouse *m) {
if (m)
m->flags |= GMOUSE_FLG_NEEDREAD;
gtimerJabI(&MouseTimer);
}
#endif /* GFX_USE_GINPUT && GINPUT_NEED_MOUSE */
/** @} */