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#include "GUI.h"
#include <imgui.h>
#include <imgui_internal.h>
#include <backends/imgui_impl_glfw.h>
#include <backends/imgui_impl_opengl3.h>
#include <imgui_memory_editor.h>
#include <glad/glad.h>
#include <GLFW/glfw3.h>
#include <cstdlib>
#include <iostream>
#include "Userspace.h"
void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods) {
if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
{
glfwSetWindowShouldClose(window, true);
return;
}
}
GUI::GUI(Userspace& user) :m_Userspace(user) {
if(!glfwInit())
exit(1);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 6);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
CreateWindow();
}
void GUI::CreateWindow() {
m_Window = glfwCreateWindow(1200, 800, "CPUSecX86", NULL, NULL);
if(!m_Window)
{
glfwTerminate();
return;
}
glfwMakeContextCurrent(m_Window);
glfwSetKeyCallback(m_Window, key_callback);
ImGui::CreateContext();
int version = gladLoadGL();
std::cout << "OpenGL Version: " << std::dec << version << std::endl;
ImGui_ImplGlfw_InitForOpenGL(m_Window, true);
ImGui_ImplOpenGL3_Init("#version 460");
ImGuiIO& io = ImGui::GetIO();
io.ConfigFlags |= ImGuiConfigFlags_DockingEnable;
io.FontGlobalScale = 1.5f;
}
void GUI::Run() {
while (!glfwWindowShouldClose(m_Window)) {
glfwPollEvents();
ImGui_ImplOpenGL3_NewFrame();
ImGui_ImplGlfw_NewFrame();
ImGui::NewFrame();
DockingSetup();
ControlGUI();
DebugInfoGUI();
static MemoryEditor process_mem;
size_t data_size = 0x10000;
process_mem.DrawWindow("Process Memory", m_Userspace.RetrieveMemory(), data_size);
if(m_Userspace.GetSystemStatus() == SystemStatus::EXCEPTION)
ErrorGUI();
glClear(GL_COLOR_BUFFER_BIT);
ImGui::Render();
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
glfwSwapBuffers(m_Window);
}
ImGui_ImplOpenGL3_Shutdown();
ImGui_ImplGlfw_Shutdown();
ImGui::DestroyContext();
}
void GUI::Terminate() {
glfwDestroyWindow(m_Window);
glfwTerminate();
}
void GUI::DockingSetup() {
ImGuiID dockspace_id = ImGui::GetID("Dockspace");
ImGuiViewport *viewport = ImGui::GetMainViewport();
if (ImGui::DockBuilderGetNode(dockspace_id) == nullptr) {
ImGui::DockBuilderAddNode(dockspace_id, ImGuiDockNodeFlags_DockSpace);
ImGui::DockBuilderSetNodeSize(dockspace_id, viewport->Size);
ImGuiID dock_id_left = 0;
ImGuiID dock_id_main = dockspace_id;
ImGui::DockBuilderSplitNode(dock_id_main, ImGuiDir_Left, 0.40f, &dock_id_left, &dock_id_main);
ImGuiID dock_id_right = 0;
ImGui::DockBuilderSplitNode(dock_id_main, ImGuiDir_Right, 0.40f, &dock_id_right, &dock_id_main);
// ImGuiID dock_id_left_top = 0;
// ImGuiID dock_id_left_bottom = 0;
// ImGui::DockBuilderSplitNode(dock_id_left, ImGuiDir_Up, 0.50f, &dock_id_left_top, &dock_id_left_bottom);
ImGui::DockBuilderDockWindow("Process Memory", dock_id_main);
ImGui::DockBuilderDockWindow("Debug Information", dock_id_left);
ImGui::DockBuilderDockWindow("Emulator Control", dock_id_right);
ImGui::DockBuilderFinish(dockspace_id);
}
ImGuiDockNodeFlags dockspace_flags = ImGuiDockNodeFlags_NoTabBar;
dockspace_flags |= ImGuiDockNodeFlags_PassthruCentralNode;
ImGui::DockSpaceOverViewport(dockspace_id, viewport, dockspace_flags);
}
void GUI::ControlGUI() {
ImGui::Begin("Emulator Control");
static std::string state = "STOPPED";
if (m_Userspace.GetSystemStatus() == SystemStatus::STOPPED)
state = "STOPPED";
else if (m_Userspace.GetSystemStatus() == SystemStatus::RUNNING)
state = "RUNNING";
else if (m_Userspace.GetSystemStatus() == SystemStatus::EXCEPTION)
state = "EXCEPTION";
ImGui::Text("Current State: %s", state.c_str());
if(ImGui::Button("Start"))
m_Userspace.Start();
ImGui::SameLine();
if(ImGui::Button("Stop"))
m_Userspace.Stop();
ImGui::SameLine();
if (ImGui::Button("Reset"))
m_Userspace.Reset();
if(ImGui::Button("Step"))
m_Userspace.Step();
ImGui::End();
}
void GUI::ErrorGUI() {
ImGui::PushStyleColor(ImGuiCol_TitleBg, ImVec4(1.0f, 0.0f, 0.0f, 1.0f));
ImGui::PushStyleColor(ImGuiCol_Border, ImVec4(1.0f, 0.0f, 0.0f, 1.0f));
ImGui::PushStyleColor(ImGuiCol_TitleBgActive, ImVec4(1.0f, 0.0f, 0.0f, 1.0f));
ImGui::PushStyleColor(ImGuiCol_ResizeGrip, ImVec4(1.0f, 0.0f, 0.0f, 1.0f));
ImGui::Begin("Exception");
ImGui::Text("An exception was detected! Trace:");
auto& e = m_Userspace.GetException();
for (auto i : e)
ImGui::Text("Err: %s", i.c_str());
ImGui::End();
ImGui::PopStyleColor(4);
}
void GUI::DebugInfoGUI() {
ImGuiInputTextFlags flags = ImGuiInputTextFlags_CharsHexadecimal;
if (m_Userspace.GetSystemStatus() == SystemStatus::RUNNING) flags |= ImGuiInputTextFlags_ReadOnly;
CPUStatus status = m_Userspace.GetCPUStatus();
ImGui::Begin("Debug Information");
ImGui::Text("GP Registers");
ImGui::InputScalar("EAX", ImGuiDataType_U32, &status.m_Registers[0], NULL, NULL, "%08X", flags);
ImGui::InputScalar("ECX", ImGuiDataType_U32, &status.m_Registers[1], NULL, NULL, "%08X", flags);
ImGui::InputScalar("EDX", ImGuiDataType_U32, &status.m_Registers[2], NULL, NULL, "%08X", flags);
ImGui::InputScalar("EBX", ImGuiDataType_U32, &status.m_Registers[3], NULL, NULL, "%08X", flags);
ImGui::InputScalar("ESP", ImGuiDataType_U32, &status.m_Registers[4], NULL, NULL, "%08X", flags);
ImGui::InputScalar("EBP", ImGuiDataType_U32, &status.m_Registers[5], NULL, NULL, "%08X", flags);
ImGui::InputScalar("ESI", ImGuiDataType_U32, &status.m_Registers[6], NULL, NULL, "%08X", flags);
ImGui::InputScalar("EDI", ImGuiDataType_U32, &status.m_Registers[7], NULL, NULL, "%08X", flags);
ImGui::Separator();
ImGui::Text("Other Registers");
ImGui::InputScalar("IP", ImGuiDataType_U32, &status.m_IP, NULL, NULL, "%08X", flags);
ImGui::Separator();
ImGui::Text("Instruction Information");
ImGui::Text("Instruction Length: %d", status.m_Instruction.m_Length);
ImGui::Text("Opcode: %s", Opcode2Str(status.m_Instruction.m_Opcode).c_str());
ImGui::Text("Operand1: %x", status.m_Instruction.m_Operand1);
ImGui::Text("Operand2: %x", status.m_Instruction.m_Operand2);
ImGui::Text("ModRM R/M: %d", status.m_Instruction.m_ModRM.m_Rm);
ImGui::Text("ModRM R: %d", status.m_Instruction.m_ModRM.m_Reg);
ImGui::Text("ModRM Status: %d", status.m_Instruction.m_ModRM.m_State);
ImGui::Text("SIB Scale: %x", status.m_Instruction.m_SIB.m_Scale);
ImGui::Text("SIB Index: %x", status.m_Instruction.m_SIB.m_Index);
ImGui::Text("SIB Base: %x", status.m_Instruction.m_SIB.m_Base);
ImGui::End();
}
GUI::~GUI() {
Terminate();
}
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