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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/trunk/backends/platform/psp/osys_psp.cpp $
* $Id: osys_psp.cpp 43618 2009-08-21 22:44:49Z joostp $
*
*/
// Todo: handle events that should fire because of shift going off
// Solution: handle shift on a button-by-button basis, only allowing it when the button is up. Also a inputmap-wide button. At buttonup, shiftstate is inspected per button.
//#define __PSP_DEBUG_FUNCS__ /* Uncomment for debugging the stack */
//#define __PSP_DEBUG_PRINT__ /* Uncomment for debug prints */
#include "backends/platform/psp/trace.h"
#include "backends/platform/psp/input.h"
// Defines for working with PSP buttons
#define CHANGED(x) (_buttonsChanged & (x))
#define PRESSED(x) ((_buttonsChanged & (x)) && (pad.Buttons & (x)))
#define UNPRESSED(x) ((_buttonsChanged & (x)) && !(pad.Buttons & (x)))
#define DOWN(x) (pad.Buttons & (x))
#define UP(x) (!(pad.Buttons & (x)))
#define PSP_DPAD (PSP_CTRL_DOWN|PSP_CTRL_UP|PSP_CTRL_LEFT|PSP_CTRL_RIGHT)
#define PSP_4BUTTONS (PSP_CTRL_CROSS | PSP_CTRL_CIRCLE | PSP_CTRL_TRIANGLE | PSP_CTRL_SQUARE)
#define PSP_TRIGGERS (PSP_CTRL_LTRIGGER | PSP_CTRL_RTRIGGER)
#define PAD_CHECK_TIME 53
void InputHandler::init() {
sceCtrlSetSamplingCycle(0); // set sampling to vsync. n = n usecs
sceCtrlSetSamplingMode(1); // analog
}
bool InputHandler::getAllInputs(Common::Event &event) {
DEBUG_ENTER_FUNC();
uint32 time = g_system->getMillis(); // may not be necessary with read
if (time - _lastPadCheckTime < PAD_CHECK_TIME) {
DEBUG_EXIT_FUNC();
return false;
}
_lastPadCheckTime = time;
SceCtrlData pad;
sceCtrlPeekBufferPositive(&pad, 1); // Peek ignores sleep. Read sleeps thread
bool haveEvent;
memset(&event, 0, sizeof(event));
if (_keyboard->isVisible())
haveEvent = _keyboard->processInput(event, pad);
else
haveEvent = getEvent(event, pad);
if (haveEvent)
{
PSP_DEBUG_PRINT("Have event[%s]\n", haveEvent ? "true" : "false");
PSP_DEBUG_PRINT("event.type[%d]\n", event.type);
}
DEBUG_EXIT_FUNC();
return haveEvent;
}
bool InputHandler::getEvent(Common::Event &event, SceCtrlData &pad) {
DEBUG_ENTER_FUNC();
_buttonsChanged = pad.Buttons ^ _prevButtons;
bool haveEvent = false;
// Collect events from different sources
haveEvent = getDpadEvent(event, pad);
if (!haveEvent)
haveEvent = getButtonEvent(event, pad);
if (!haveEvent)
haveEvent = getNubEvent(event, pad);
_prevButtons = pad.Buttons;
DEBUG_EXIT_FUNC();
return haveEvent;
}
bool InputHandler::getDpadEvent(Common::Event &event, SceCtrlData &pad) {
DEBUG_ENTER_FUNC();
int newDpadX = 0, newDpadY = 0;
bool haveEvent = false;
if (DOWN(PSP_CTRL_UP)) {
newDpadY++;
if (DOWN(PSP_CTRL_RTRIGGER)) // Shifting causes diagonals
newDpadX++;
}
if (DOWN(PSP_CTRL_RIGHT)) {
newDpadX++;
if (DOWN(PSP_CTRL_RTRIGGER))
newDpadY--;
}
if (DOWN(PSP_CTRL_DOWN)) {
newDpadY--;
if (DOWN(PSP_CTRL_RTRIGGER))
newDpadX--;
}
if (DOWN(PSP_CTRL_LEFT)) {
newDpadX--;
if (DOWN(PSP_CTRL_RTRIGGER))
newDpadY++;
}
if (newDpadX != _dpadX || newDpadY != _dpadY) {
if (_dpadX == 0 && _dpadY == 0) { // We were in the middle so we pressed dpad
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = translateDpad(newDpadX, newDpadY);
event.kbd.ascii = event.kbd.keycode - Common::KEYCODE_KP0 + '0'; // Get ascii
_dpadX = newDpadX;
_dpadY = newDpadY;
}
else if (newDpadX == 0 && newDpadY == 0) {// We're now centered so we unpressed dpad
event.type = Common::EVENT_KEYUP;
event.kbd.keycode = translateDpad(_dpadX, _dpadY);
event.kbd.ascii = event.kbd.keycode - Common::KEYCODE_KP0 + '0';
_dpadX = newDpadX;
_dpadY = newDpadY;
} else { // we moved from one pressed dpad direction to another one
event.type = Common::EVENT_KEYUP; // first release the last dpad direction
event.kbd.keycode = translateDpad(_dpadX, _dpadY);
event.kbd.ascii = event.kbd.keycode - Common::KEYCODE_KP0 + '0';
_dpadX = 0; // so that we'll pick up a new dpad movement the next round
_dpadY = 0;
}
PSP_DEBUG_PRINT("Keypad event. DpadX[%d], DpadY[%d]\n", _dpadX, _dpadY);
haveEvent = true;
}
DEBUG_EXIT_FUNC();
return haveEvent;
}
inline Common::KeyCode InputHandler::translateDpad(int x, int y) {
DEBUG_ENTER_FUNC();
Common::KeyCode key;
if (x == -1) {
if (y == -1)
key = Common::KEYCODE_KP1;
else if (y == 0)
key = Common::KEYCODE_KP4;
else /* y == 1 */
key = Common::KEYCODE_KP7;
} else if (x == 0) {
if (y == -1)
key = Common::KEYCODE_KP2;
else /* y == 1 */
key = Common::KEYCODE_KP8;
} else {/* x == 1 */
if (y == -1)
key = Common::KEYCODE_KP3;
else if (y == 0)
key = Common::KEYCODE_KP6;
else /* y == 1 */
key = Common::KEYCODE_KP9;
}
DEBUG_EXIT_FUNC();
return key;
}
bool InputHandler::getButtonEvent(Common::Event &event, SceCtrlData &pad) {
DEBUG_ENTER_FUNC();
bool haveEvent = false;
if (PRESSED(PSP_CTRL_SELECT))
_keyboard->setVisible(true);
else if (CHANGED(PSP_4BUTTONS | PSP_TRIGGERS | PSP_CTRL_START)) {
if (CHANGED(PSP_CTRL_CROSS)) {
event.type = DOWN(PSP_CTRL_CROSS) ? Common::EVENT_LBUTTONDOWN : Common::EVENT_LBUTTONUP;
event.mouse.x = _cursor->getX(); // Could this have to do with SCI enter problem?
event.mouse.y = _cursor->getY();
PSP_DEBUG_PRINT("%s\n", event.type == Common::EVENT_LBUTTONDOWN ? "LButtonDown" : "LButtonUp");
} else if (CHANGED(PSP_CTRL_CIRCLE)) {
event.type = DOWN(PSP_CTRL_CIRCLE) ? Common::EVENT_RBUTTONDOWN : Common::EVENT_RBUTTONUP;
event.mouse.x = _cursor->getX();
event.mouse.y = _cursor->getY();
PSP_DEBUG_PRINT("%s\n", event.type == Common::EVENT_LBUTTONDOWN ? "RButtonDown" : "RButtonUp");
} else {
//any of the other buttons.
event.type = _buttonsChanged & pad.Buttons ? Common::EVENT_KEYDOWN : Common::EVENT_KEYUP;
event.kbd.ascii = 0;
event.kbd.flags = 0;
if (CHANGED(PSP_CTRL_LTRIGGER)) {
event.kbd.keycode = Common::KEYCODE_ESCAPE;
event.kbd.ascii = 27;
} else if (CHANGED(PSP_CTRL_START)) {
event.kbd.keycode = Common::KEYCODE_F5;
event.kbd.ascii = Common::ASCII_F5;
if (DOWN(PSP_CTRL_RTRIGGER)) {
event.kbd.flags |= Common::KBD_CTRL; // Main menu to allow RTL
}
} else if (CHANGED(PSP_CTRL_SQUARE)) {
event.kbd.keycode = Common::KEYCODE_PERIOD;
event.kbd.ascii = '.';
} else if (CHANGED(PSP_CTRL_TRIANGLE)) {
event.kbd.keycode = Common::KEYCODE_RETURN;
event.kbd.ascii = '\r';
} else if (DOWN(PSP_CTRL_RTRIGGER)) { // An event
event.kbd.flags |= Common::KBD_SHIFT;
}
PSP_DEBUG_PRINT("Ascii[%d]. Key %s.\n", event.kbd.ascii, event.type == Common::EVENT_KEYDOWN ? "down" : "up" );
}
haveEvent = true;
}
DEBUG_EXIT_FUNC();
return haveEvent;
}
bool InputHandler::getNubEvent(Common::Event &event, SceCtrlData &pad) {
DEBUG_ENTER_FUNC();
bool haveEvent = false;
int32 analogStepX = pad.Lx; // Goes up to 255.
int32 analogStepY = pad.Ly;
int32 oldX = _cursor->getX();
int32 oldY = _cursor->getY();
analogStepX = modifyNubAxisMotion(analogStepX);
analogStepY = modifyNubAxisMotion(analogStepY);
if (analogStepX != 0 || analogStepY != 0) {
PSP_DEBUG_PRINT("raw x[%d], y[%d]\n", analogStepX, analogStepY);
// If no movement then this has no effect
if (DOWN(PSP_CTRL_RTRIGGER)) {
// Fine control mode for analog
if (analogStepX != 0) {
if (analogStepX > 0)
_cursor->increaseXY(2, 0);
else
_cursor->increaseXY(-2, 0);
}
if (analogStepY != 0) {
if (analogStepY > 0)
_cursor->increaseXY(0, 2);
else
_cursor->increaseXY(0, -2);
}
} else { // Regular speed movement
_cursor->increaseXY(analogStepX, 0);
_cursor->increaseXY(0, analogStepY);
}
int32 newX = _cursor->getX();
int32 newY = _cursor->getY();
if ((oldX != newX) || (oldY != newY)) {
event.type = Common::EVENT_MOUSEMOVE;
event.mouse.x = newX;
event.mouse.y = newY;
haveEvent = true;
PSP_DEBUG_PRINT("Nub event. X[%d], Y[%d]\n", newX, newY);
}
}
DEBUG_EXIT_FUNC();
return haveEvent;
}
inline int32 InputHandler::modifyNubAxisMotion(int32 input) {
DEBUG_ENTER_FUNC();
const int MIN_NUB_MOTION = 30;
input -= 128; // Center on 0.
if (input < -MIN_NUB_MOTION - 1)
input += MIN_NUB_MOTION + 1; // reduce the velocity
else if (input > MIN_NUB_MOTION)
input -= MIN_NUB_MOTION; // same
else // between these points, dampen the response to 0
input = 0;
DEBUG_EXIT_FUNC();
return input;
}
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