123 lines
3.6 KiB
C++
123 lines
3.6 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-23 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/** @file Apple Desktop Bus Mouse emulation. */
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#include <devices/common/adb/adbmouse.h>
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#include <devices/common/adb/adbbus.h>
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#include <devices/deviceregistry.h>
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#include <core/hostevents.h>
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#include <loguru.hpp>
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AdbMouse::AdbMouse(std::string name) : AdbDevice(name) {
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EventManager::get_instance()->add_mouse_handler(this, &AdbMouse::event_handler);
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this->reset();
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}
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void AdbMouse::event_handler(const MouseEvent& event) {
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if (event.flags & MOUSE_EVENT_MOTION) {
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this->x_rel += event.xrel;
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this->y_rel += event.yrel;
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} else if (event.flags & MOUSE_EVENT_BUTTON) {
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this->buttons_state = event.buttons_state;
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this->changed = true;
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}
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}
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void AdbMouse::reset() {
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this->my_addr = ADB_ADDR_RELPOS;
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this->dev_handler_id = 1;
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this->exc_event_flag = 1;
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this->srq_flag = 1; // enable service requests
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this->x_rel = 0;
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this->y_rel = 0;
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this->buttons_state = 0;
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this->changed = false;
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}
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bool AdbMouse::get_register_0() {
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if (this->x_rel || this->y_rel || this->changed) {
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uint8_t* out_buf = this->host_obj->get_output_buf();
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uint8_t button1_state = (this->buttons_state ^ 1) << 7;
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// report Y-axis motion
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if (this->y_rel < -64)
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out_buf[0] = 0x40 | button1_state;
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else if (this->y_rel > 63)
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out_buf[0] = 0x3F | button1_state;
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else
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out_buf[0] = (this->y_rel & 0x7F) | button1_state;
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// report X-axis motion
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if (this->x_rel < -64)
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out_buf[1] = 0x40 | 0x80;
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else if (this->x_rel > 63)
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out_buf[1] = 0x3F | 0x80;
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else
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out_buf[1] = (this->x_rel & 0x7F) | 0x80;
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// reset accumulated motion data and button change flag
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this->x_rel = 0;
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this->y_rel = 0;
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this->changed = false;
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this->host_obj->set_output_count(2);
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return true;
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}
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return false;
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}
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void AdbMouse::set_register_3() {
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if (this->host_obj->get_input_count() < 2) // ensure we got enough data
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return;
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const uint8_t* in_data = this->host_obj->get_input_buf();
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switch (in_data[1]) {
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case 0:
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this->my_addr = in_data[0] & 0xF;
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this->srq_flag = !!(in_data[0] & 0x20);
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break;
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case 1:
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case 2:
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this->dev_handler_id = in_data[1];
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break;
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case 4: // extended mouse protocol isn't supported yet
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break;
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case 0xFE: // move to a new address if there was no collision
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if (!this->got_collision) {
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this->my_addr = in_data[0] & 0xF;
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}
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break;
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default:
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LOG_F(WARNING, "%s: unknown handler ID = 0x%X", this->name.c_str(), in_data[1]);
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}
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}
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static const DeviceDescription AdbMouse_Descriptor = {
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AdbMouse::create, {}, {}
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};
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REGISTER_DEVICE(AdbMouse, AdbMouse_Descriptor);
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