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https://github.com/ocornut/imgui.git
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233 lines
8.1 KiB
C++
233 lines
8.1 KiB
C++
// ============================================================
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// 精简版：仅保留 ImGui 菜单窗口，无任何游戏功能
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// 可用于测试注入后是否稳定，定位是否为功能模块导致闪退
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// 编译：aarch64-linux-android-clang++ -shared -fPIC -O2 menu_only.cpp -o libMyMenu.so \
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// -I./imgui -I./imgui/backends -lGLESv3 -lEGL -llog -ldl
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// ============================================================
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#define IMGUI_DEFINE_MATH_OPERATORS
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#include "imgui.h"
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#include "imgui_internal.h"
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#include "imgui_impl_opengl3.h"
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#include <thread>
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#include <chrono>
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#include <GLES3/gl3.h>
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#include <EGL/egl.h>
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#include <android/log.h>
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#include <unistd.h>
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#include <mutex>
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#include <atomic>
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#include <dlfcn.h>
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#include <cstdio>
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#include <cstdlib>
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#include <cmath>
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// Dobby 用于 Hook eglSwapBuffers（若未使用 Dobby 可替换为其他 Hook 框架）
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#include "dobby.h"
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#define LOGI(...) __android_log_print(ANDROID_LOG_INFO, "JKMenu", __VA_ARGS__)
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// ------------------------------------------------------------
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// 全局变量
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// ------------------------------------------------------------
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int g_gl_width = 0, g_gl_height = 0;
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float g_autoScale = 1.0f;
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float g_menuX = 100.0f, g_menuY = 100.0f, g_menuW = 500.0f, g_menuH = 650.0f;
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bool g_menuCollapsed = false;
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bool g_needUpdateFontSafe = false;
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ImFont* g_mainFont = nullptr;
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float g_current_rendered_size = 0.0f;
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// ------------------------------------------------------------
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// 字体更新（自适应屏幕）
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// ------------------------------------------------------------
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void UpdateFontHD(bool force = false) {
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ImGuiIO& io = ImGui::GetIO();
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float screenH = (io.DisplaySize.y > 100.0f) ? io.DisplaySize.y : 2400.0f;
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g_autoScale = screenH / 1080.0f;
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float targetSize = std::clamp(20.0f * g_autoScale, 16.0f, 45.0f);
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if (!force && std::abs(targetSize - g_current_rendered_size) < 2.0f) return;
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ImGui_ImplOpenGL3_DestroyDeviceObjects();
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io.Fonts->Clear();
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g_mainFont = nullptr;
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ImFontConfig config;
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config.OversampleH = 2;
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config.OversampleV = 2;
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config.PixelSnapH = false;
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// 尝试加载系统字体（支持中文）
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const char* fontPaths[] = {
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"/system/fonts/Miui-Regular.ttf",
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"/system/fonts/SysSans-Hans-Regular.ttf",
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"/system/fonts/NotoSansCJK-Regular.ttc",
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"/system/fonts/DroidSansFallback.ttf",
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"/system/fonts/Roboto-Regular.ttf"
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};
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for (const char* path : fontPaths) {
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if (access(path, R_OK) == 0) {
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g_mainFont = io.Fonts->AddFontFromFileTTF(
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path, targetSize, &config, io.Fonts->GetGlyphRangesChineseSimplifiedCommon()
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);
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if (g_mainFont) break;
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}
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}
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if (!g_mainFont) {
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g_mainFont = io.Fonts->AddFontDefault();
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}
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io.Fonts->Build();
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ImGui_ImplOpenGL3_CreateDeviceObjects();
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g_current_rendered_size = targetSize;
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}
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// ------------------------------------------------------------
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// 菜单绘制
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// ------------------------------------------------------------
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void DrawMenu() {
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ImGuiIO& io = ImGui::GetIO();
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ImGuiStyle& style = ImGui::GetStyle();
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// 样式
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style.WindowRounding = 16.0f * g_autoScale;
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style.FrameRounding = 8.0f * g_autoScale;
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style.WindowPadding = ImVec2(16.0f * g_autoScale, 16.0f * g_autoScale);
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style.Colors[ImGuiCol_WindowBg] = ImVec4(0.08f, 0.09f, 0.11f, 0.92f);
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style.Colors[ImGuiCol_TitleBg] = ImVec4(0.08f, 0.09f, 0.11f, 0.95f);
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style.Colors[ImGuiCol_TitleBgActive] = ImVec4(0.12f, 0.13f, 0.15f, 0.95f);
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static bool firstOpen = true;
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if (firstOpen) {
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ImGui::SetNextWindowPos(ImVec2(g_menuX, g_menuY), ImGuiCond_Always);
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ImGui::SetNextWindowSize(ImVec2(g_menuW, g_menuH), ImGuiCond_Always);
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ImGui::SetNextWindowCollapsed(g_menuCollapsed, ImGuiCond_Always);
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firstOpen = false;
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}
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if (ImGui::Begin("金铲铲助手", nullptr, ImGuiWindowFlags_NoSavedSettings)) {
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if (!ImGui::IsWindowCollapsed()) {
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// 记录窗口状态
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g_menuX = ImGui::GetWindowPos().x;
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g_menuY = ImGui::GetWindowPos().y;
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g_menuW = ImGui::GetWindowSize().x;
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g_menuH = ImGui::GetWindowSize().y;
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g_menuCollapsed = false;
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ImGui::TextColored(ImVec4(0.0f, 0.85f, 0.55f, 1.0f), "精简测试菜单 (无功能)");
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ImGui::Separator();
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ImGui::Text("FPS: %.1f", io.Framerate);
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ImGui::Text("屏幕分辨率: %dx%d", g_gl_width, g_gl_height);
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if (ImGui::Button("退出菜单")) {
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// 可在此添加卸载逻辑（例如 dlclose 自身）
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LOGI("Exit button clicked");
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}
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ImGui::TextColored(ImVec4(1.0f, 0.8f, 0.2f, 1.0f), "若此菜单稳定不闪退，说明注入框架正常");
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ImGui::TextColored(ImVec4(0.8f, 0.8f, 1.0f, 1.0f), "功能已全部移除，可在此基础上逐步加回功能定位崩溃");
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} else {
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g_menuCollapsed = true;
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}
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}
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ImGui::End();
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}
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// ------------------------------------------------------------
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// eglSwapBuffers Hook（注入 ImGui 渲染）
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// ------------------------------------------------------------
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EGLBoolean (*old_eglSwap)(EGLDisplay, EGLSurface) = nullptr;
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std::atomic<bool> g_engine_rendering{false};
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EGLBoolean hook_eglSwap(EGLDisplay dpy, EGLSurface surf) {
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if (!g_engine_rendering.load()) {
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g_engine_rendering.store(true);
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}
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// 获取窗口尺寸
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eglQuerySurface(dpy, surf, EGL_WIDTH, &g_gl_width);
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eglQuerySurface(dpy, surf, EGL_HEIGHT, &g_gl_height);
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if (g_gl_width <= 0 || g_gl_height <= 0) {
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return old_eglSwap(dpy, surf);
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}
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// ---------- ImGui 初始化 ----------
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static bool init = false;
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static auto last_time = std::chrono::high_resolution_clock::now();
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// 当 OpenGL 上下文变化时重建 ImGui
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static EGLContext last_ctx = EGL_NO_CONTEXT;
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EGLContext current_ctx = eglGetCurrentContext();
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if (current_ctx != last_ctx) {
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if (init) {
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ImGui_ImplOpenGL3_DestroyDeviceObjects();
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g_needUpdateFontSafe = true;
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}
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last_ctx = current_ctx;
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}
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if (!init) {
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ImGui::CreateContext();
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ImGuiIO& io = ImGui::GetIO();
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io.IniFilename = nullptr; // 不保存 imgui.ini
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ImGui_ImplOpenGL3_Init("#version 300 es");
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io.DisplaySize = ImVec2((float)g_gl_width, (float)g_gl_height);
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UpdateFontHD(true);
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init = true;
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}
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if (g_needUpdateFontSafe) {
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UpdateFontHD(true);
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g_needUpdateFontSafe = false;
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}
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// ---------- 更新 ImGui 时间 ----------
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auto now = std::chrono::high_resolution_clock::now();
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float delta = std::chrono::duration<float>(now - last_time).count();
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last_time = now;
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ImGuiIO& io = ImGui::GetIO();
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io.DisplaySize = ImVec2((float)g_gl_width, (float)g_gl_height);
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io.DeltaTime = (delta > 0.0001f) ? delta : (1.0f / 120.0f);
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// ---------- 绘制 ----------
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ImGui_ImplOpenGL3_NewFrame();
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ImGui::NewFrame();
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glDisable(GL_SCISSOR_TEST);
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// 仅绘制菜单
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DrawMenu();
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ImGui::Render();
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glViewport(0, 0, g_gl_width, g_gl_height);
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ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
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// ---------- 调用原始 eglSwapBuffers ----------
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return old_eglSwap(dpy, surf);
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}
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// ------------------------------------------------------------
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// 初始化线程（延迟 Hook eglSwapBuffers）
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// ------------------------------------------------------------
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void* SetupThread(void*) {
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// 等待 libEGL.so 加载并获取 eglSwapBuffers 地址
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void* egl_ptr = nullptr;
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while ((egl_ptr = DobbySymbolResolver("libEGL.so", "eglSwapBuffers")) == nullptr) {
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sleep(1);
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}
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LOGI("eglSwapBuffers found at %p, hooking...", egl_ptr);
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DobbyHook(egl_ptr, (void*)hook_eglSwap, (void**)&old_eglSwap);
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LOGI("Hook installed.");
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return nullptr;
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}
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// ------------------------------------------------------------
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// SO 加载入口
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// ------------------------------------------------------------
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__attribute__((constructor)) void Init() {
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LOGI("Menu-only SO loaded.");
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pthread_t t;
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pthread_create(&t, 0, SetupThread, 0);
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pthread_detach(t);
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}
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