mirror of
https://github.com/ocornut/imgui.git
synced 2026-11-06 14:35:51 +01:00
131 lines
3.6 KiB
C++
131 lines
3.6 KiB
C++
#include <jni.h>
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#include <errno.h>
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#include <string.h>
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#include <sys/types.h>
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#include <android/log.h>
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#include <dlfcn.h>
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#include <unistd.h>
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#include <pthread.h>
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// ImGui 核心与渲染器
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#include "dobby.h"
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#include "imgui.h"
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#include "imgui_impl_android.h"
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#include "imgui_impl_opengl3.h"
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#include <GLES3/gl3.h>
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#include <EGL/egl.h>
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#define LOG_TAG "JKMenu"
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#define LOGI(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)
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#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)
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// 原始函数指针
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typedef EGLBoolean (*eglSwapBuffers_t)(EGLDisplay dpy, EGLSurface surface);
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eglSwapBuffers_t orig_eglSwapBuffers = nullptr;
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// 全局状态
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bool g_Initialized = false;
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bool g_ShowMenu = true;
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int g_Width = 0;
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int g_Height = 0;
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// 菜单绘制内容
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void DrawImGuiMenu() {
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if (!g_ShowMenu) return;
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ImGui::SetNextWindowSize(ImVec2(450, 400), ImGuiCond_FirstUseEver);
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ImGui::Begin("JKMenu - OpenGL Mode", &g_ShowMenu);
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ImGui::Text("Device: OnePlus Pad Pro 2");
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ImGui::Text("Package: com.tencent.jkchess");
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ImGui::Text("Screen: %dx%d", g_Width, g_Height);
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ImGui::Separator();
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static bool feature1 = false;
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ImGui::Checkbox("显示射线", &feature1);
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static float menu_scale = 1.0f;
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ImGui::SliderFloat("菜单缩放", &menu_scale, 0.5f, 2.0f);
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if (ImGui::Button("隐藏菜单 (需重启注入显示)")) {
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g_ShowMenu = false;
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}
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ImGui::End();
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}
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// 核心 Hook 函数
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EGLBoolean hooked_eglSwapBuffers(EGLDisplay dpy, EGLSurface surface) {
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if (!g_Initialized) {
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LOGI("SUCCESS: OpenGL Render triggered via eglSwapBuffers!");
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// 获取实际渲染表面的宽高
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eglQuerySurface(dpy, surface, EGL_WIDTH, &g_Width);
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eglQuerySurface(dpy, surface, EGL_HEIGHT, &g_Height);
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if (g_Width > 0 && g_Height > 0) {
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ImGui::CreateContext();
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ImGuiIO& io = ImGui::GetIO();
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// 针对高分辨率平板优化字体大小
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io.FontGlobalScale = 2.5f;
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io.DisplaySize = ImVec2((float)g_Width, (float)g_Height);
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if (ImGui_ImplOpenGL3_Init("#version 300 es")) {
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g_Initialized = true;
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LOGI("ImGui Initialized Successfully!");
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}
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}
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}
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if (g_Initialized) {
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ImGui_ImplOpenGL3_NewFrame();
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ImGui::NewFrame();
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DrawImGuiMenu();
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ImGui::Render();
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ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
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}
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return orig_eglSwapBuffers(dpy, surface);
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}
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// 注入后的初始化线程
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void* hack_thread(void*) {
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LOGI("SO Loaded! Waiting for Game Engine...");
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// 等待游戏加载，金铲铲这类游戏建议等 10-15 秒
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sleep(12);
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// 尝试寻找 Hook 点
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// 1. 标准 EGL 函数
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void* target = DobbySymbolResolver("libEGL.so", "eglSwapBuffers");
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// 2. 如果标准没搜到，尝试搜腾讯私有渲染函数
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if (!target) {
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target = dlsym(RTLD_DEFAULT, "nw_main_swap_buffers");
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}
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if (target) {
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LOGI("Found render target at %p, applying DobbyHook...", target);
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DobbyHook(target,
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(dobby_dummy_func_t)hooked_eglSwapBuffers,
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(dobby_dummy_func_t*)&orig_eglSwapBuffers);
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if (orig_eglSwapBuffers) {
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LOGI("Dobby Hook Applied Successfully!");
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}
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} else {
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LOGE("CRITICAL: No render function found. Is the game still in Vulkan mode?");
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}
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return nullptr;
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}
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// 构造函数：SO 加载时自动运行
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void __attribute__((constructor)) init() {
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pthread_t t;
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pthread_create(&t, nullptr, hack_thread, nullptr);
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}
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