forked from Cpasjuste/uae4all2
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psp2_touch.c
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psp2_touch.c
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//
// Created by rsn8887 on 02/05/18.
#include <SDL.h>
#include <psp2/kernel/processmgr.h>
#include <psp2/touch.h>
#include "psp2_touch.h"
//#include "math.h"
typedef int bool;
#define false 0;
#define true 1;
#include "vkbd.h"
SceTouchData touch_old[SCE_TOUCH_PORT_MAX_NUM];
SceTouchData touch[SCE_TOUCH_PORT_MAX_NUM];
SceTouchPanelInfo panelinfo[SCE_TOUCH_PORT_MAX_NUM];
float aAWidth[SCE_TOUCH_PORT_MAX_NUM];
float aAHeight[SCE_TOUCH_PORT_MAX_NUM];
float dispWidth[SCE_TOUCH_PORT_MAX_NUM];
float dispHeight[SCE_TOUCH_PORT_MAX_NUM];
float forcerange[SCE_TOUCH_PORT_MAX_NUM];
extern int mainMenu_touchControls;
extern int lastmx;
extern int lastmy;
static int hiresdx = 0;
static int hiresdy = 0;
enum {
MAX_NUM_FINGERS = 3, // number of fingers to track per panel
MAX_TAP_TIME = 250, // taps longer than this will not result in mouse click events
MAX_TAP_MOTION_DISTANCE = 10, // max distance finger motion in Vita screen pixels to be considered a tap
SIMULATED_CLICK_DURATION = 50, // time in ms how long simulated mouse clicks should be
}; // track three fingers per panel
typedef struct {
int id; // -1: no touch
int timeLastDown;
float lastDownX;
float lastDownY;
} Touch;
Touch _finger[SCE_TOUCH_PORT_MAX_NUM][MAX_NUM_FINGERS]; // keep track of finger status
typedef enum DraggingType {
DRAG_NONE = 0,
DRAG_TWO_FINGER,
DRAG_THREE_FINGER,
} DraggingType;
DraggingType _multiFingerDragging[SCE_TOUCH_PORT_MAX_NUM]; // keep track whether we are currently drag-and-dropping
int _simulatedClickStartTime[SCE_TOUCH_PORT_MAX_NUM][2]; // initiation time of last simulated left or right click (zero if no click)
void psp2InitTouch(void) {
sceTouchSetSamplingState(SCE_TOUCH_PORT_FRONT, SCE_TOUCH_SAMPLING_STATE_START);
sceTouchSetSamplingState(SCE_TOUCH_PORT_BACK, SCE_TOUCH_SAMPLING_STATE_START);
sceTouchEnableTouchForce(SCE_TOUCH_PORT_FRONT);
sceTouchEnableTouchForce(SCE_TOUCH_PORT_BACK);
SceTouchPanelInfo panelinfo[SCE_TOUCH_PORT_MAX_NUM];
for(int port = 0; port < SCE_TOUCH_PORT_MAX_NUM; port++) {
sceTouchGetPanelInfo(port, &panelinfo[port]);
aAWidth[port] = (float)(panelinfo[port].maxAaX - panelinfo[port].minAaX);
aAHeight[port] = (float)(panelinfo[port].maxAaY - panelinfo[port].minAaY);
dispWidth[port] = (float)(panelinfo[port].maxDispX - panelinfo[port].minDispX);
dispHeight[port] = (float)(panelinfo[port].maxDispY - panelinfo[port].minDispY);
forcerange[port] = (float)(panelinfo[port].maxForce - panelinfo[port].minForce);
}
for (int port = 0; port < SCE_TOUCH_PORT_MAX_NUM; port++) {
for (int i = 0; i < MAX_NUM_FINGERS; i++) {
_finger[port][i].id = -1;
}
_multiFingerDragging[port] = DRAG_NONE;
}
for (int port = 0; port < SCE_TOUCH_PORT_MAX_NUM; port++) {
for (int i = 0; i < 2; i++) {
_simulatedClickStartTime[port][i] = 0;
}
}
}
void psp2QuitTouch(void) {
sceTouchDisableTouchForce(SCE_TOUCH_PORT_FRONT);
sceTouchDisableTouchForce(SCE_TOUCH_PORT_BACK);
}
void psp2PollTouch(void) {
int finger_id = 0;
memcpy(touch_old, touch, sizeof(touch_old));
for(int port = 0; port < SCE_TOUCH_PORT_MAX_NUM; port++) {
if ((port == SCE_TOUCH_PORT_FRONT) || (mainMenu_touchControls == 2 && port == SCE_TOUCH_PORT_BACK)) {
sceTouchPeek(port, &touch[port], 1);
psp2FinishSimulatedMouseClicks(port, touch[port].timeStamp / 1000);
if (touch[port].reportNum > 0) {
for (int i = 0; i < touch[port].reportNum; i++) {
// adjust coordinates and forces to return normalized values
// for the front, screen area is used as a reference (for direct touch)
// e.g. touch_x = 1.0 corresponds to screen_x = 960
// for the back panel, the active touch area is used as reference
float x = 0;
float y = 0;
psp2ConvertTouchXYToSDLXY(&x, &y, touch[port].report[i].x, touch[port].report[i].y, port);
finger_id = touch[port].report[i].id;
// Send an initial touch if finger hasn't been down
bool hasBeenDown = false;
int j = 0;
if (touch_old[port].reportNum > 0) {
for (j = 0; j < touch_old[port].reportNum; j++) {
if (touch_old[port].report[j].id == touch[port].report[i].id ) {
hasBeenDown = true;
break;
}
}
}
if (!hasBeenDown) {
TouchEvent ev;
ev.type = FINGERDOWN;
ev.tfinger.timestamp = touch[port].timeStamp / 1000;
ev.tfinger.touchId = port;
ev.tfinger.fingerId = finger_id;
ev.tfinger.x = x;
ev.tfinger.y = y;
psp2ProcessTouchEvent(&ev);
} else {
// If finger moved, send motion event instead
if (touch_old[port].report[j].x != touch[port].report[i].x ||
touch_old[port].report[j].y != touch[port].report[i].y) {
float oldx = 0;
float oldy = 0;
psp2ConvertTouchXYToSDLXY(&oldx, &oldy, touch_old[port].report[j].x, touch_old[port].report[j].y, port);
TouchEvent ev;
ev.type = FINGERMOTION;
ev.tfinger.timestamp = touch[port].timeStamp / 1000;
ev.tfinger.touchId = port;
ev.tfinger.fingerId = finger_id;
ev.tfinger.x = x;
ev.tfinger.y = y;
ev.tfinger.dx = x - oldx;
ev.tfinger.dy = y - oldy;
psp2ProcessTouchEvent(&ev);
}
}
}
}
// some fingers might have been let go
if (touch_old[port].reportNum > 0) {
for (int i = 0; i < touch_old[port].reportNum; i++) {
int finger_up = 1;
if (touch[port].reportNum > 0) {
for (int j = 0; j < touch[port].reportNum; j++) {
if (touch[port].report[j].id == touch_old[port].report[i].id ) {
finger_up = 0;
}
}
}
if (finger_up == 1) {
float x = 0;
float y = 0;
psp2ConvertTouchXYToSDLXY(&x, &y, touch_old[port].report[i].x, touch_old[port].report[i].y, port);
finger_id = touch_old[port].report[i].id;
// Finger released from screen
TouchEvent ev;
ev.type = FINGERUP;
ev.tfinger.timestamp = touch[port].timeStamp / 1000;
ev.tfinger.touchId = port;
ev.tfinger.fingerId = finger_id;
ev.tfinger.x = x;
ev.tfinger.y = y;
psp2ProcessTouchEvent(&ev);
}
}
}
}
}
}
void psp2ConvertTouchXYToSDLXY(float *sdl_x, float *sdl_y, int vita_x, int vita_y, int port) {
float x = 0;
float y = 0;
if (port == SCE_TOUCH_PORT_FRONT) {
x = (vita_x - panelinfo[port].minDispX) / dispWidth[port];
y = (vita_y - panelinfo[port].minDispY) / dispHeight[port];
} else {
x = (vita_x - panelinfo[port].minAaX) / aAWidth[port];
y = (vita_y - panelinfo[port].minAaY) / aAHeight[port];
}
if (x < 0.0) {
x = 0.0;
} else if (x > 1.0) {
x = 1.0;
}
if (y < 0.0) {
y = 0.0;
} else if (y > 1.0) {
y = 1.0;
}
*sdl_x = x;
*sdl_y = y;
}
void psp2ProcessTouchEvent(TouchEvent *event) {
// Supported touch gestures:
// left mouse click: single finger short tap
// right mouse click: second finger short tap while first finger is still down
// pointer motion: single finger drag
// drag and drop: dual finger drag
if (event->type == FINGERDOWN || event->type == FINGERUP || event->type == FINGERMOTION) {
// front (0) or back (1) panel
int port = event->tfinger.touchId;
if (port >= 0 && port < SCE_TOUCH_PORT_MAX_NUM) {
switch (event->type) {
case FINGERDOWN:
psp2ProcessFingerDown(event);
break;
case FINGERUP:
psp2ProcessFingerUp(event);
break;
case FINGERMOTION:
psp2ProcessFingerMotion(event);
break;
}
}
}
}
void psp2ProcessFingerDown(TouchEvent *event) {
// front (0) or back (1) panel
int port = event->tfinger.touchId;
// id (for multitouch)
int id = event->tfinger.fingerId;
if (vkbd_mode) {
if (port == 0) {
vkbd_touch_x = event->tfinger.x;
vkbd_touch_y = event->tfinger.y;
}
return;
}
int x = lastmx;
int y = lastmy;
// make sure each finger is not reported down multiple times
for (int i = 0; i < MAX_NUM_FINGERS; i++) {
if (_finger[port][i].id == id) {
_finger[port][i].id = -1;
}
}
// we need the timestamps to decide later if the user performed a short tap (click)
// or a long tap (drag)
// we also need the last coordinates for each finger to keep track of dragging
for (int i = 0; i < MAX_NUM_FINGERS; i++) {
if (_finger[port][i].id == -1) {
_finger[port][i].id = id;
_finger[port][i].timeLastDown = event->tfinger.timestamp;
_finger[port][i].lastDownX = event->tfinger.x;
_finger[port][i].lastDownY = event->tfinger.y;
break;
}
}
}
void psp2ProcessFingerUp(TouchEvent *event) {
// front (0) or back (1) panel
int port = event->tfinger.touchId;
// id (for multitouch)
int id = event->tfinger.fingerId;
if (vkbd_mode) {
if (port == 0) {
vkbd_touch_x = -1;
vkbd_touch_y = -1;
vkbd_move &= ~VKBD_BUTTON;
}
return;
}
// find out how many fingers were down before this event
int numFingersDown = 0;
for (int i = 0; i < MAX_NUM_FINGERS; i++) {
if (_finger[port][i].id >= 0) {
numFingersDown++;
}
}
int x = lastmx;
int y = lastmy;
for (int i = 0; i < MAX_NUM_FINGERS; i++) {
if (_finger[port][i].id == id) {
_finger[port][i].id = -1;
if (!_multiFingerDragging[port]) {
if ((event->tfinger.timestamp - _finger[port][i].timeLastDown) <= MAX_TAP_TIME) {
// short (<MAX_TAP_TIME ms) tap is interpreted as right/left mouse click depending on # fingers already down
// but only if the finger hasn't moved since it was pressed down by more than MAX_TAP_MOTION_DISTANCE pixels
float xrel = ((event->tfinger.x * 960.0) - (_finger[port][i].lastDownX * 960.0));
float yrel = ((event->tfinger.y * 544.0) - (_finger[port][i].lastDownY * 544.0));
float maxRSquared = (float) (MAX_TAP_MOTION_DISTANCE * MAX_TAP_MOTION_DISTANCE);
if ((xrel * xrel + yrel * yrel) < maxRSquared) {
if (numFingersDown == 2 || numFingersDown == 1) {
Uint8 simulatedButton = 0;
if (numFingersDown == 2) {
simulatedButton = SDL_BUTTON_RIGHT;
// need to raise the button later
_simulatedClickStartTime[port][1] = event->tfinger.timestamp;
} else if (numFingersDown == 1) {
simulatedButton = SDL_BUTTON_LEFT;
// need to raise the button later
_simulatedClickStartTime[port][0] = event->tfinger.timestamp;
}
SDL_Event ev0;
ev0.type = SDL_MOUSEBUTTONDOWN;
ev0.button.button = simulatedButton;
ev0.button.x = x;
ev0.button.y = y;
SDL_PushEvent(&ev0);
}
}
}
} else if (numFingersDown == 1) {
// when dragging, and the last finger is lifted, the drag is over
Uint8 simulatedButton = 0;
if (_multiFingerDragging[port] == DRAG_THREE_FINGER)
simulatedButton = SDL_BUTTON_RIGHT;
else {
simulatedButton = SDL_BUTTON_LEFT;
}
SDL_Event ev0;
ev0.type = SDL_MOUSEBUTTONUP;
ev0.button.button = simulatedButton;
ev0.button.x = x;
ev0.button.y = y;
_multiFingerDragging[port] = DRAG_NONE;
SDL_PushEvent(&ev0);
}
}
}
}
void psp2ProcessFingerMotion(TouchEvent *event) {
if (vkbd_mode)
return;
// front (0) or back (1) panel
int port = event->tfinger.touchId;
// id (for multitouch)
int id = event->tfinger.fingerId;
// find out how many fingers were down before this event
int numFingersDown = 0;
for (int i = 0; i < MAX_NUM_FINGERS; i++) {
if (_finger[port][i].id >= 0) {
numFingersDown++;
}
}
if (numFingersDown >= 1) {
// If we are starting a multi-finger drag, start holding down the mouse button
if (numFingersDown >= 2) {
if (!_multiFingerDragging[port]) {
// only start a multi-finger drag if at least two fingers have been down long enough
int numFingersDownLong = 0;
for (int i = 0; i < MAX_NUM_FINGERS; i++) {
if (_finger[port][i].id >= 0) {
if (event->tfinger.timestamp - _finger[port][i].timeLastDown > MAX_TAP_TIME) {
numFingersDownLong++;
}
}
}
if (numFingersDownLong >= 2) {
Uint8 simulatedButton = 0;
if (numFingersDownLong == 2) {
simulatedButton = SDL_BUTTON_LEFT;
_multiFingerDragging[port] = DRAG_TWO_FINGER;
} else {
simulatedButton = SDL_BUTTON_RIGHT;
_multiFingerDragging[port] = DRAG_THREE_FINGER;
}
int mouseDownX = lastmx;
int mouseDownY = lastmy;
SDL_Event ev;
ev.type = SDL_MOUSEBUTTONDOWN;
ev.button.button = simulatedButton;
ev.button.x = mouseDownX;
ev.button.y = mouseDownY;
SDL_PushEvent(&ev);
}
}
}
//check if this is the "oldest" finger down (or the only finger down), otherwise it will not affect mouse motion
bool updatePointer = true;
if (numFingersDown > 1) {
for (int i = 0; i < MAX_NUM_FINGERS; i++) {
if (_finger[port][i].id == id) {
for (int j = 0; j < MAX_NUM_FINGERS; j++) {
if (_finger[port][j].id >= 0 && (i != j) ) {
if (_finger[port][j].timeLastDown < _finger[port][i].timeLastDown) {
updatePointer = false;
}
}
}
}
}
}
if (updatePointer) {
const int slowdown = 16;
hiresdx += (int)(event->tfinger.dx * 960.0 * slowdown);
hiresdy += (int)(event->tfinger.dy * 544.0 * slowdown);
int xrel = hiresdx / slowdown;
int yrel = hiresdy / slowdown;
if (xrel || yrel) {
int x = lastmx + xrel;
int y = lastmy + yrel;
SDL_Event ev0;
ev0.type = SDL_MOUSEMOTION;
ev0.motion.x = x;
ev0.motion.y = y;
ev0.motion.xrel = xrel;
ev0.motion.yrel = yrel;
SDL_PushEvent(&ev0);
hiresdx %= slowdown;
hiresdy %= slowdown;
}
}
}
}
void psp2FinishSimulatedMouseClicks(int port, SceUInt64 currentTime) {
for (int i = 0; i < 2; i++) {
if (_simulatedClickStartTime[port][i] != 0) {
if (currentTime - _simulatedClickStartTime[port][i] >= SIMULATED_CLICK_DURATION) {
int simulatedButton;
if (i == 0) {
simulatedButton = SDL_BUTTON_LEFT;
} else {
simulatedButton = SDL_BUTTON_RIGHT;
}
SDL_Event ev;
ev.type = SDL_MOUSEBUTTONUP;
ev.button.button = simulatedButton;
ev.button.x = lastmx;
ev.button.y = lastmy;
SDL_PushEvent(&ev);
_simulatedClickStartTime[port][i] = 0;
}
}
}
}