mirror of
https://github.com/ocornut/imgui.git
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188 lines
7.2 KiB
C++
188 lines
7.2 KiB
C++
#include <pthread.h>
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#include <unistd.h>
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#include <android/log.h>
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#include <EGL/egl.h>
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#include <GLES3/gl3.h>
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#include <dlfcn.h>
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#include <android/input.h>
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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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#define TAG "MT_Drive"
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static bool g_Initialized = false;
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// --- MT 专用可视化校准结构 ---
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struct {
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float rawX = 0.0f;
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float rawY = 0.0f;
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float mappedX = 0.0f;
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float mappedY = 0.0f;
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bool down = false;
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float renderW = 0.0f;
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float renderH = 0.0f;
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// 根据你的设备 3392x2400 与 1426x1008 计算出的完美黄金比例
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float scaleX = 0.4204f; // 1426 / 3392
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float scaleY = 0.4200f; // 1008 / 2400
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float offsetX = 0.0f;
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float offsetY = 0.0f;
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} g_Touch;
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typedef EGLBoolean (*p_eglSwapBuffers)(EGLDisplay dpy, EGLSurface surface);
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static p_eglSwapBuffers old_eglSwapBuffers = nullptr;
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typedef int (*p_InputConsumer_consume)(void* instance, void* factory, bool consumeBatches, int64_t frameTime, uint32_t* outSeq, void** outEvent);
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static p_InputConsumer_consume old_consume = nullptr;
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void handle_android_event(AInputEvent* event) {
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if (AInputEvent_getType(event) == AINPUT_EVENT_TYPE_MOTION) {
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int32_t action = AMotionEvent_getAction(event) & AMOTION_EVENT_ACTION_MASK;
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float currentRawX = AMotionEvent_getX(event, 0);
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float currentRawY = AMotionEvent_getY(event, 0);
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g_Touch.rawX = currentRawX;
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g_Touch.rawY = currentRawY;
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// 核心公式修正：先计算比例，再加偏移。
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// 这样一来，偏移量的单位就等于屏幕上的实际像素！
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g_Touch.mappedX = (currentRawX * g_Touch.scaleX) + g_Touch.offsetX;
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g_Touch.mappedY = (currentRawY * g_Touch.scaleY) + g_Touch.offsetY;
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if (action == AMOTION_EVENT_ACTION_DOWN) {
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g_Touch.down = true;
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} else if (action == AMOTION_EVENT_ACTION_UP || action == AMOTION_EVENT_ACTION_CANCEL) {
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g_Touch.down = false;
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}
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}
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}
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int hook_consume(void* a, void* b, bool c, int64_t d, uint32_t* e, void** f) {
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int res = old_consume(a, b, c, d, e, f);
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if (res == 0 && f && *f) {
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handle_android_event((AInputEvent*)*f);
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}
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return res;
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}
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EGLBoolean hook_eglSwapBuffers(EGLDisplay dpy, EGLSurface surface) {
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EGLint w, h;
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eglQuerySurface(dpy, surface, EGL_WIDTH, &w);
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eglQuerySurface(dpy, surface, EGL_HEIGHT, &h);
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if (w <= 0 || h <= 0) return old_eglSwapBuffers(dpy, surface);
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g_Touch.renderW = (float)w;
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g_Touch.renderH = (float)h;
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if (!g_Initialized) {
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ImGui::CreateContext();
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ImGui_ImplOpenGL3_Init("#version 300 es");
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float uiScale = (float)h / 1000.0f;
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if (uiScale < 1.0f) uiScale = 1.0f;
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ImGui::GetStyle().ScaleAllSizes(3.5f * uiScale);
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ImGui::GetIO().FontGlobalScale = 3.5f * uiScale;
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g_Initialized = true;
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}
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ImGuiIO& io = ImGui::GetIO();
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io.DisplaySize = ImVec2(g_Touch.renderW, g_Touch.renderH);
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io.MousePos = ImVec2(g_Touch.mappedX, g_Touch.mappedY);
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io.MouseDown[0] = g_Touch.down;
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ImGui_ImplOpenGL3_NewFrame();
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ImGui::NewFrame();
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// 绘制调试十字和红点
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if (g_Touch.down) {
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ImDrawList* draw = ImGui::GetForegroundDrawList();
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draw->AddLine(ImVec2(0, g_Touch.mappedY), ImVec2(g_Touch.renderW, g_Touch.mappedY), IM_COL32(0, 255, 0, 200), 3.0f);
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draw->AddLine(ImVec2(g_Touch.mappedX, 0), ImVec2(g_Touch.mappedX, g_Touch.renderH), IM_COL32(0, 255, 0, 200), 3.0f);
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draw->AddCircleFilled(ImVec2(g_Touch.mappedX, g_Touch.mappedY), 25.0f, IM_COL32(255, 0, 0, 255));
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}
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ImGui::SetNextWindowPos(ImVec2(20, 20), ImGuiCond_FirstUseEver);
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ImGui::SetNextWindowSize(ImVec2(w * 0.9f, h * 0.8f), ImGuiCond_FirstUseEver);
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if (ImGui::Begin("MT Visual Calibration", nullptr, ImGuiWindowFlags_NoCollapse)) {
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ImGui::TextColored(ImVec4(1,1,0,1), "【法则】随手指拖动而距离变化=调Scale | 距离固定偏=调Offset");
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ImGui::Text("系统 RAW X: %.1f | Y: %.1f", g_Touch.rawX, g_Touch.rawY);
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ImGui::Separator();
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ImVec2 btnSize(140, 80);
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// 比例调节区（微调）
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ImGui::TextColored(ImVec4(0,1,1,1), "【第一步】调比例 (让红点和手指移动速度一样)");
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ImGui::Text("Scale X: %.4f", g_Touch.scaleX);
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if (ImGui::Button("-0.01 SX", btnSize)) g_Touch.scaleX -= 0.01f; ImGui::SameLine();
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if (ImGui::Button("+0.01 SX", btnSize)) g_Touch.scaleX += 0.01f; ImGui::SameLine();
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if (ImGui::Button("-0.001 SX", btnSize)) g_Touch.scaleX -= 0.001f; ImGui::SameLine();
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if (ImGui::Button("+0.001 SX", btnSize)) g_Touch.scaleX += 0.001f;
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ImGui::Text("Scale Y: %.4f", g_Touch.scaleY);
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if (ImGui::Button("-0.01 SY", btnSize)) g_Touch.scaleY -= 0.01f; ImGui::SameLine();
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if (ImGui::Button("+0.01 SY", btnSize)) g_Touch.scaleY += 0.01f; ImGui::SameLine();
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if (ImGui::Button("-0.001 SY", btnSize)) g_Touch.scaleY -= 0.001f; ImGui::SameLine();
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if (ImGui::Button("+0.001 SY", btnSize)) g_Touch.scaleY += 0.001f;
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ImGui::Separator();
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// 偏移调节区（单位为像素）
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ImGui::TextColored(ImVec4(0,1,1,1), "【第二步】调偏移 (让红点对准手指中心)");
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ImGui::Text("Offset X: %.1f", g_Touch.offsetX);
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if (ImGui::Button("-50 X", btnSize)) g_Touch.offsetX -= 50.0f; ImGui::SameLine();
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if (ImGui::Button("-10 X", btnSize)) g_Touch.offsetX -= 10.0f; ImGui::SameLine();
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if (ImGui::Button("+10 X", btnSize)) g_Touch.offsetX += 10.0f; ImGui::SameLine();
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if (ImGui::Button("+50 X", btnSize)) g_Touch.offsetX += 50.0f;
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ImGui::Text("Offset Y: %.1f", g_Touch.offsetY);
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if (ImGui::Button("-50 Y", btnSize)) g_Touch.offsetY -= 50.0f; ImGui::SameLine();
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if (ImGui::Button("-10 Y", btnSize)) g_Touch.offsetY -= 10.0f; ImGui::SameLine();
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if (ImGui::Button("+10 Y", btnSize)) g_Touch.offsetY += 10.0f; ImGui::SameLine();
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if (ImGui::Button("+50 Y", btnSize)) g_Touch.offsetY += 50.0f;
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ImGui::Separator();
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if (ImGui::Button("重置默认黄金比例", ImVec2(-1, 100))) {
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g_Touch.offsetX = 0; g_Touch.offsetY = 0;
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g_Touch.scaleX = 0.4204f; g_Touch.scaleY = 0.4200f;
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}
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ImGui::End();
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}
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ImGui::Render();
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GLint last_depth;
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glGetIntegerv(GL_DEPTH_TEST, &last_depth);
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glDisable(GL_DEPTH_TEST);
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ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
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if (last_depth) glEnable(GL_DEPTH_TEST);
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return old_eglSwapBuffers(dpy, surface);
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}
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void* init_thread(void*) {
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sleep(6);
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void* sym_egl = dlsym(RTLD_DEFAULT, "eglSwapBuffers");
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if (sym_egl) DobbyHook(sym_egl, (void*)hook_eglSwapBuffers, (void**)&old_eglSwapBuffers);
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void* consume_addr = DobbySymbolResolver("libinput.so", "_ZN7android13InputConsumer7consumeEPNS_26InputEventFactoryInterfaceEblPjPPNS_10InputEventE");
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if (consume_addr) DobbyHook(consume_addr, (void*)hook_consume, (void**)&old_consume);
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return nullptr;
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}
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__attribute__((constructor)) void init_plugin() {
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pthread_t t;
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pthread_create(&t, nullptr, init_thread, nullptr);
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}
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