some work on pad emulation (WIP)

src/Emulator/HLE/Libraries/LibPad/controller.cpp

@@ -0,0 +1,51 @@
+#include "controller.h"
+
+namespace Emulator::Host::Controller {
+GameController::GameController() { m_states_num = 0;
+    m_last_state = State();
+}
+void GameController::readState(State* state, bool* isConnected, int* connectedCount) {
+    Lib::LockMutexGuard lock(m_mutex);
+
+    *isConnected = m_connected;
+    *connectedCount = m_connected_count;
+    *state = getLastState();
+}
+
+State GameController::getLastState() const {
+    if (m_states_num == 0) {
+        return m_last_state;
+    }
+
+    auto last = (m_first_state + m_states_num - 1) % MAX_STATES;
+
+    return m_states[last];
+}
+
+void GameController::addState(const State& state) {
+    if (m_states_num >= MAX_STATES) {
+        m_states_num = MAX_STATES - 1;
+        m_first_state = (m_first_state + 1) % MAX_STATES;
+    }
+
+    auto index = (m_first_state + m_states_num) % MAX_STATES;
+
+    m_states[index] = state;
+    m_last_state = state;
+
+    m_states_num++;
+}
+
+void GameController::checKButton(int id, u32 button, bool isPressed) {
+    Lib::LockMutexGuard lock(m_mutex);
+    auto state = getLastState();
+    if (isPressed) {
+        state.buttonsState |= button;
+    } else {
+        state.buttonsState &= ~button;
+    }
+
+    addState(state);
+}
+
+}  // namespace Emulator::Host::Controller

src/Emulator/HLE/Libraries/LibPad/controller.h

@@ -0,0 +1,33 @@
+#pragma once
+#include <types.h>
+#include "Lib/Threads.h"
+
+namespace Emulator::Host::Controller {
+struct State {
+    u32 buttonsState;
+};
+
+constexpr u32 MAX_STATES = 64;
+
+class GameController {
+  public:
+    GameController();
+    virtual ~GameController() = default;
+
+    void readState(State* state, bool* isConnected, int* connectedCount);
+    State getLastState() const;
+    void checKButton(int id, u32 button, bool isPressed);
+    void addState(const State& state);
+
+
+  private:
+    Lib::Mutex m_mutex;
+    bool m_connected = false;
+    State m_last_state;
+    int m_connected_count = 0;
+    u32 m_states_num = 0;
+    u32 m_first_state = 0;
+    State m_states[MAX_STATES];
+};
+
+}  // namespace Emulator::HLE::Libraries::Controller

src/Emulator/HLE/Libraries/LibPad/pad.cpp

@@ -3,6 +3,9 @@
 #include <Core/PS4/HLE/ErrorCodes.h>
 #include <Core/PS4/HLE/Libs.h>
 
+#include "Emulator/Util/singleton.h"
+#include "controller.h"
+
 namespace Emulator::HLE::Libraries::LibPad {
 int PS4_SYSV_ABI scePadInit() { return SCE_OK; }
 
@@ -12,7 +15,30 @@ int PS4_SYSV_ABI scePadOpen(Emulator::HLE::Libraries::LibUserService::SceUserSer
 }
 
 int PS4_SYSV_ABI scePadReadState(int32_t handle, ScePadData* pData) {
-    pData->connected = true;  // make it think it is connected
+    auto* controller = singleton<Emulator::Host::Controller::GameController>::instance();
+
+    int connectedCount = 0;
+    bool isConnected = false;
+    Emulator::Host::Controller::State state;
+
+    controller->readState(&state, &isConnected, &connectedCount);
+
+    pData->buttons = state.buttonsState;
+    pData->leftStick.x = 0;   // dummy
+    pData->leftStick.y = 0;   // dummy
+    pData->rightStick.x = 0;  // dummy
+    pData->rightStick.y = 0;  // dummy
+    pData->analogButtons.r2 = 0;//dummy
+    pData->analogButtons.l2 = 0;//dummy
+    pData->orientation.x = 0;
+    pData->orientation.y = 0;
+    pData->orientation.z = 0;
+    pData->orientation.w = 0;
+
+    pData->connected = true;  // isConnected; //TODO fix me proper
+    pData->connectedCount = 1;//connectedCount;
+    pData->deviceUniqueDataLen = 0;
+
     return SCE_OK;
 }
 

src/Emulator/HLE/Libraries/LibPad/pad.h

@@ -1,9 +1,31 @@
 #pragma once
-#include "Core/PS4/Loader/SymbolsResolver.h"
 #include <Emulator/HLE/Libraries/LibUserService/user_service.h>
+#include <types.h>
+
+#include "Core/PS4/Loader/SymbolsResolver.h"
 
 namespace Emulator::HLE::Libraries::LibPad {
 
+typedef enum : u32 {
+    SCE_PAD_BUTTON_L3 = 0x00000002,
+    SCE_PAD_BUTTON_R3 = 0x00000004,
+    SCE_PAD_BUTTON_OPTIONS = 0x00000008,
+    SCE_PAD_BUTTON_UP = 0x00000010,
+    SCE_PAD_BUTTON_RIGHT = 0x00000020,
+    SCE_PAD_BUTTON_DOWN = 0x00000040,
+    SCE_PAD_BUTTON_LEFT = 0x00000080,
+    SCE_PAD_BUTTON_L2 = 0x00000100,
+    SCE_PAD_BUTTON_R2 = 0x00000200,
+    SCE_PAD_BUTTON_L1 = 0x00000400,
+    SCE_PAD_BUTTON_R1 = 0x00000800,
+    SCE_PAD_BUTTON_TRIANGLE = 0x00001000,
+    SCE_PAD_BUTTON_CIRCLE = 0x00002000,
+    SCE_PAD_BUTTON_CROSS = 0x00004000,
+    SCE_PAD_BUTTON_SQUARE = 0x00008000,
+    SCE_PAD_BUTTON_TOUCH_PAD = 0x00100000,
+    SCE_PAD_BUTTON_INTERCEPTED = 0x80000000,
+} ScePadButton;
+
 struct ScePadOpenParam {
     u08 reserve[8];
 };

src/Emulator/Util/singleton.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <cstdlib>
+#include <new>
+
+template <class T>
+class singleton {
+  public:
+    static T* instance() {
+        if (!m_instance) {
+            m_instance = static_cast<T*>(std::malloc(sizeof(T)));
+            new (m_instance) T;
+        }
+
+        return m_instance;
+    }
+
+  protected:
+    singleton();
+    ~singleton();
+
+  private:
+    static inline T* m_instance = nullptr;
+};