Aplicando callbacks para las acciones del ui

src/Machine.cpp

@@ -20,6 +20,7 @@ Machine::Machine() :
 
     interpreter{std::make_unique<Interpreter>(this->machine_state)},
     ui_manager{std::make_unique<UIManager>(this->graphics, this->machine_state, this->callback_manager)},
+    running{false},
     ips{700},
     last_update_time{0},
     accumulator{0},
@@ -30,7 +31,10 @@ Machine::Machine() :
 
 void Machine::iterate()
 {
+    if (running)
+    {
         this->execute_interpreter();
+    }
 
     this->graphics->start();
     this->ui_manager->render();
@@ -74,9 +78,31 @@ void Machine::register_callbacks()
         &Machine::on_reset,
         this
     ));
+    callback_manager->set_stop_callback(std::bind(
+        &Machine::on_stop,
+        this
+    ));
+    callback_manager->set_resume_callback(std::bind(
+        &Machine::on_resume,
+        this
+    ));
+    callback_manager->set_step_callback(std::bind(
+        &Machine::on_step,
+        this,
+        std::placeholders::_1
+    ));
+    callback_manager->set_ips_callback(std::bind(
+        &Machine::on_speed_change,
+        this,
+        std::placeholders::_1
+    ));
+    callback_manager->set_reload_callback(std::bind(
+        &Machine::on_reload,
+        this
+    ));
 }
 
-void Machine::on_rom_load(const std::string& path) const
+void Machine::on_rom_load(const std::string& path)
 {
     std::ifstream file(path, std::ios::binary);
     file.unsetf(std::ios::skipws);
@@ -100,6 +126,7 @@ void Machine::on_rom_load(const std::string& path) const
         this->machine_state->memory.begin() + 0x200
     );
 
+    this->rom = path;
     std::cout << "Cargado rom: " << path << std::endl;
 }
 
@@ -107,3 +134,43 @@ void Machine::on_reset() const
 {
     this->machine_state->reset();
 }
+
+void Machine::on_stop()
+{
+    this->running = false;
+    this->accumulator = 0;
+}
+
+void Machine::on_resume()
+{
+    this->running = true;
+    this->last_update_time = SDL_GetTicks();
+    this->accumulator = 0;
+}
+
+void Machine::on_step(int steps)
+{
+    for (int i = 0; i < steps; i++)
+    {
+        this->interpreter->tick();
+    }
+}
+
+void Machine::on_speed_change(const int ips)
+{
+    this->ips = ips;
+    if (this->ips > 0)
+    {
+        this->target_cycle_time = 1.0 / this->ips;
+    }
+    else
+    {
+        this->target_cycle_time = std::numeric_limits<double>::infinity();
+    }
+}
+
+void Machine::on_reload()
+{
+    this->on_reset();
+    this->on_rom_load(this->rom);
+}

src/Machine.h

@@ -21,9 +21,17 @@ class Machine
     double accumulator;
     double target_cycle_time;
 
+    std::string rom;
+    bool running;
+
     void execute_interpreter();
-    void on_rom_load(const std::string& path) const;
+    void on_rom_load(const std::string& path);
     void on_reset() const;
+    void on_stop();
+    void on_resume();
+    void on_step(int steps);
+    void on_speed_change(int ips);
+    void on_reload();
 
 public:
     void register_callbacks();

src/UI/CallbackManager.cpp

@@ -1,5 +1,8 @@
 #include "CallbackManager.h"
 
+//----------------------------------------------------------------
+// SET CALLBACKS
+//----------------------------------------------------------------
 void CallbackManager::set_rom_load_callback(const RomLoadCallback& callback)
 {
     this->rom_load_callback = callback;
@@ -10,6 +13,34 @@ void CallbackManager::set_reset_callback(const ResetCallback& callback)
     this->reset_callback = callback;
 }
 
+void CallbackManager::set_resume_callback(const ResumeCallback& callback)
+{
+    this->resume_callback = callback;
+}
+
+void CallbackManager::set_stop_callback(const StopCallback& callback)
+{
+    this->stop_callback = callback;
+}
+
+void CallbackManager::set_step_callback(const StepCallback& callback)
+{
+    this->step_callback = callback;
+}
+
+void CallbackManager::set_ips_callback(const IPSCallback& callback)
+{
+    this->ips_callback = callback;
+}
+
+void CallbackManager::set_reload_callback(const ReloadCallback& callback)
+{
+    this->reload_callback = callback;
+}
+
+//----------------------------------------------------------------
+// TRIGGER CALLBACKS
+//----------------------------------------------------------------
 void CallbackManager::trigger_rom_load(const std::string& path)
 {
     if (this->rom_load_callback)
@@ -25,3 +56,40 @@ void CallbackManager::trigger_reset()
         this->reset_callback();
     }
 }
+
+void CallbackManager::trigger_resume()
+{
+    if (this->resume_callback)
+    {
+        this->resume_callback();
+    }
+}
+
+void CallbackManager::trigger_stop()
+{
+    if (this->stop_callback)
+    {
+        this->stop_callback();
+    }
+}
+
+void CallbackManager::trigger_step(int steps)
+{
+    if (this->step_callback)
+    {
+        this->step_callback(steps);
+    }
+}
+
+void CallbackManager::trigger_ips(int speed)
+{
+    if (this->ips_callback)
+    {
+        this->ips_callback(speed);
+    }
+}
+
+void CallbackManager::trigger_reload()
+{
+    if (this->reload_callback) this->reload_callback();
+}

src/UI/CallbackManager.h

@@ -7,18 +7,38 @@
 
 struct CallbackManager
 {
-    using RomLoadCallback = std::function<void(const std::string &)>;
+    using RomLoadCallback = std::function<void(const std::string&)>;
     using ResetCallback = std::function<void()>;
+    using ResumeCallback = std::function<void()>;
+    using StopCallback = std::function<void()>;
+    using StepCallback = std::function<void(int)>;
+    using IPSCallback = std::function<void(int)>;
+    using ReloadCallback = std::function<void()>;
 
     void set_rom_load_callback(const RomLoadCallback& callback);
     void set_reset_callback(const ResetCallback& callback);
+    void set_resume_callback(const ResumeCallback& callback);
+    void set_stop_callback(const StopCallback& callback);
+    void set_step_callback(const StepCallback& callback);
+    void set_ips_callback(const IPSCallback& callback);
+    void set_reload_callback(const ReloadCallback& callback);
 
     void trigger_rom_load(const std::string& path);
     void trigger_reset();
+    void trigger_resume();
+    void trigger_stop();
+    void trigger_step(int);
+    void trigger_ips(int);
+    void trigger_reload();
 
 private:
     RomLoadCallback rom_load_callback;
     ResetCallback reset_callback;
+    ResumeCallback resume_callback;
+    StopCallback stop_callback;
+    StepCallback step_callback;
+    IPSCallback ips_callback;
+    ReloadCallback reload_callback;
 };
 
 

src/UI/ControlPanel.cpp

@@ -18,6 +18,8 @@ ControlPanel::ControlPanel(
 
 void ControlPanel::render()
 {
+    int starting_speed = this->ips;
+
     constexpr auto full_width = ImVec2(-FLT_MIN, 0.0f);
 
     if (ImGui::Begin("Chip-8 - Controls"))
@@ -30,14 +32,31 @@ void ControlPanel::render()
         if (ImGui::Button(run ? "Pause" : "Run", full_width))
         {
             this->run = !run;
+            if (this->run)
+            {
+                this->callback_manager->trigger_resume();
+            }
+            else
+            {
+                this->callback_manager->trigger_stop();
+            }
         }
 
         ImGui::Text("Status: %s", "Stopped");
 
         ImGui::SeparatorText("Debug");
 
-        ImGui::Button("Step One", full_width);
-        ImGui::Button(std::format("Step +{}", steps).data(), full_width);
+
+        if (ImGui::Button("Step One", full_width))
+        {
+            this->callback_manager->trigger_step(1);
+        }
+
+        if (ImGui::Button(std::format("Step +{}", steps).data(), full_width))
+        {
+            this->callback_manager->trigger_step(steps);
+        }
+
         ImGui::PushItemWidth(ImGui::GetContentRegionAvail().x);
         ImGui::InputInt("##steps", &steps);
         ImGui::PopItemWidth();
@@ -46,7 +65,7 @@ void ControlPanel::render()
         ImGui::SeparatorText("Emulation speed (IPS)");
 
         ImGui::PushItemWidth(ImGui::GetContentRegionAvail().x);
-        ImGui::InputInt("##speed", &speed);
+        ImGui::InputInt("##speed", &ips);
         ImGui::PopItemWidth();
 
         ImGui::SeparatorText("");
@@ -55,7 +74,15 @@ void ControlPanel::render()
         {
             this->callback_manager->trigger_reset();
         }
-        ImGui::Button("Reload ROM", full_width);
+        if (ImGui::Button("Reload ROM", full_width))
+        {
+            this->callback_manager->trigger_reload();
+        }
+    }
+
+    if (starting_speed != this->ips)
+    {
+        this->callback_manager->trigger_ips(this->ips);
     }
 
     ImGui::End();

src/UI/ControlPanel.h

@@ -1,8 +1,6 @@
 #ifndef CONTROLPANEL_H
 #define CONTROLPANEL_H
-#include <functional>
 #include <memory>
-#include <variant>
 
 #include "CallbackManager.h"
 #include "../Graphics/Graphics.h"
@@ -17,7 +15,7 @@ class ControlPanel
 
     bool run = false;
     int steps = 1;
-    int speed = 100;
+    int ips = 700;
 
     static SDLCALL void on_callback_load_rom(void* self, const char* const* filelist, int filter);