Initial host event manager.

core/CMakeLists.txt

@@ -5,4 +5,4 @@ include_directories("${PROJECT_SOURCE_DIR}"
 file(GLOB SOURCES "${CMAKE_CURRENT_SOURCE_DIR}/*.cpp")
 
 add_library(core OBJECT ${SOURCES})
-target_link_libraries(core)
+target_link_libraries(core PRIVATE SDL2::SDL2)

core/hostevents.cpp

@@ -0,0 +1,65 @@
+/*
+DingusPPC - The Experimental PowerPC Macintosh emulator
+Copyright (C) 2018-23 divingkatae and maximum
+                      (theweirdo)     spatium
+
+(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
+
+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 3 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, see <https://www.gnu.org/licenses/>.
+*/
+
+#include <core/hostevents.h>
+#include <cpu/ppc/ppcemu.h>
+#include <loguru.hpp>
+#include <SDL.h>
+
+EventManager* EventManager::event_manager;
+
+void EventManager::poll_events()
+{
+    SDL_Event event;
+
+    while (SDL_PollEvent(&event)) {
+        events_captured++;
+
+        switch (event.type) {
+        case SDL_QUIT:
+            power_on = false;
+            break;
+
+        case SDL_WINDOWEVENT: {
+                WindowEvent we;
+                we.sub_type  = event.window.event;
+                we.window_id = event.window.windowID;
+                this->post_event(we);
+            }
+            break;
+
+        case SDL_KEYDOWN:
+            key_downs++;
+            break;
+
+        case SDL_KEYUP:
+            key_ups++;
+            break;
+
+        case SDL_MOUSEMOTION:
+            mouse_motions++;
+            break;
+
+        default:
+            unhandled_events++;
+        }
+    }
+}

core/hostevents.h

@@ -0,0 +1,94 @@
+/*
+DingusPPC - The Experimental PowerPC Macintosh emulator
+Copyright (C) 2018-23 divingkatae and maximum
+                      (theweirdo)     spatium
+
+(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
+
+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 3 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, see <https://www.gnu.org/licenses/>.
+*/
+
+#ifndef EVENT_MANAGER_H
+#define EVENT_MANAGER_H
+
+#include <cinttypes>
+#include <functional>
+#include <list>
+#include <map>
+#include <utility>
+
+enum EventType : uint16_t {
+    EVENT_UNKNOWN   = 0,
+    EVENT_WINDOW    = 100,
+    EVENT_KEYBOARD  = 200,
+    EVENT_MOUSE     = 300,
+};
+
+class BaseEvent {
+public:
+    BaseEvent(EventType type) { this->type = type; };
+    EventType   type;
+};
+
+class WindowEvent : public BaseEvent {
+public:
+    WindowEvent() : BaseEvent(EventType::EVENT_WINDOW) {};
+
+    uint16_t    sub_type;
+    uint32_t    window_id;
+};
+
+class EventManager {
+public:
+    static EventManager* get_instance() {
+        if (!event_manager) {
+            event_manager = new EventManager();
+        }
+        return event_manager;
+    };
+
+    using EventHandler = std::function<void(const BaseEvent&)>;
+
+    void poll_events();
+
+    void register_handler(const EventType event_type, EventHandler&& eh) {
+        this->_handlers[event_type].emplace_back(std::move(eh));
+    };
+
+    void post_event(const BaseEvent& event) {
+        auto type = event.type;
+
+        if( _handlers.find(type) == _handlers.end() )
+            return;
+
+        auto&& handlers = _handlers.at(type);
+
+        for(auto&& handler : handlers)
+            handler(event);
+    }
+
+private:
+    static EventManager* event_manager;
+    EventManager() {}; // private constructor to implement a singleton
+
+    std::map<EventType, std::list<EventHandler>> _handlers;
+
+    uint64_t    events_captured = 0;
+    uint64_t    unhandled_events = 0;
+    uint64_t    key_downs = 0;
+    uint64_t    key_ups = 0;
+    uint64_t    mouse_motions = 0;
+};
+
+#endif // EVENT_MANAGER_H

core/timermanager.h

@@ -36,9 +36,11 @@ using namespace std;
 #define NS_PER_SEC      1E9
 #define USEC_PER_SEC    1E6
 #define NS_PER_USEC     1000UL
+#define NS_PER_MSEC     1E6
 #define ONE_BILLION_NS  0x3B9ACA00UL
 
 #define USECS_TO_NSECS(us) (us) * NS_PER_USEC
+#define MSECS_TO_NSECS(ms) (ms) * NS_PER_MSEC
 
 typedef function<void()> timer_cb;
 

main.cpp

@@ -1,6 +1,6 @@
 /*
 DingusPPC - The Experimental PowerPC Macintosh emulator
-Copyright (C) 2018-22 divingkatae and maximum
+Copyright (C) 2018-23 divingkatae and maximum
                       (theweirdo)     spatium
 
 (Contact divingkatae#1017 or powermax#2286 on Discord for more info)
@@ -22,11 +22,14 @@ along with this program.  If not, see <https://www.gnu.org/licenses/>.
 // The main runfile - main.cpp
 // This is where the magic begins
 
-#include "debugger/debugger.h"
-#include "machines/machinefactory.h"
-#include "machines/machineproperties.h"
-#include "utils/profiler.h"
-#include "ppcemu.h"
+#include <core/hostevents.h>
+#include <core/timermanager.h>
+#include <cpu/ppc/ppcemu.h>
+#include <debugger/debugger.h>
+#include <machines/machinefactory.h>
+#include <machines/machineproperties.h>
+#include <utils/profiler.h>
+
 #include <cinttypes>
 #include <csignal>
 #include <cstring>
@@ -196,6 +199,12 @@ int main(int argc, char** argv) {
     // redirect SIGABRT to our own handler
     signal(SIGABRT, sigabrt_handler);
 
+    // set up system wide event polling using
+    // default Macintosh polling rate of 11 ms
+    TimerManager::get_instance()->add_cyclic_timer(MSECS_TO_NSECS(11), [] {
+        EventManager::get_instance()->poll_events();
+    });
+
     switch (execution_mode) {
     case 0:
         for (;;) {