dzc
1f0f5b4503
用户实测三台电脑（Win10×2/Win11×1）安装后白屏，远程与非远程均有；进程与 HTTP 服务完全健康（manifest 可访问、cmd 无报错）——纯渲染层失败。属于 Flutter Windows 引擎 GPU/ANGLE 渲染在真实环境的已知兼容性问题 （flutter/flutter#74856：RDP 会话 OpenGL 不可用白屏；老/虚拟显卡同理）。 方案：wWinMain 入口（引擎创建前）设置 FLUTTER_ENGINE_SWITCHES= --enable-software-rendering，全部环境统一软件渲染。本应用为轻量状态页 （列表/卡片/图标），软件渲染性能无感；换来 RDP、老显卡、驱动缺失等 一切图形环境可用。此前 ANGLE_PLATFORM_BACKEND=d3d9 试验失败（Flutter 自带的 ANGLE 仅含 d3d11 后端），软件渲染是为该场景设计的官方开关。
50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
#include <flutter/dart_project.h>
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#include <flutter/flutter_view_controller.h>
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#include <windows.h>
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#include "flutter_window.h"
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#include "utils.h"
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int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
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_In_ wchar_t *command_line, _In_ int show_command) {
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// 统一软件渲染：Flutter 的 GPU/ANGLE 渲染在多种真实环境下初始化失败导致
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// 白屏窗口（RDP 远程会话、老显卡/驱动、虚拟显卡——实测远程与非远程机器
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// 均有白屏，而进程与 HTTP 服务本身健康）。本应用界面为轻量状态页，软件
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// 渲染性能足够；引擎开关必须在引擎创建前经 FLUTTER_ENGINE_SWITCHES 注入。
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SetEnvironmentVariable(L"FLUTTER_ENGINE_SWITCHES", L"--enable-software-rendering");
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// Attach to console when present (e.g., 'flutter run') or create a
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// new console when running with a debugger.
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if (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent()) {
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CreateAndAttachConsole();
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}
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// Initialize COM, so that it is available for use in the library and/or
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// plugins.
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::CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED);
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flutter::DartProject project(L"data");
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std::vector<std::string> command_line_arguments =
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GetCommandLineArguments();
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project.set_dart_entrypoint_arguments(std::move(command_line_arguments));
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FlutterWindow window(project);
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Win32Window::Point origin(10, 10);
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Win32Window::Size size(1000, 660);
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if (!window.Create(L"资安信插件助手", origin, size)) {
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return EXIT_FAILURE;
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}
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window.SetQuitOnClose(true);
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::MSG msg;
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while (::GetMessage(&msg, nullptr, 0, 0)) {
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::TranslateMessage(&msg);
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::DispatchMessage(&msg);
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}
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::CoUninitialize();
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return EXIT_SUCCESS;
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}
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