kotatogram/lib_ui
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Allow Ui::GL::CheckCapapilities to work without QWidget

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Ilya Fedin 2023-11-19 22:04:41 +04:00 • committed by John Preston
parent 1d1c524b2c
commit b1d5c7c116
2 changed files with 38 additions and 10 deletions
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42
ui/gl/gl_detection.cpp
View file

@ -14,9 +14,11 @@
#include <QtCore/QSet>
#include <QtCore/QFile>
#include <QtGui/QtEvents>
#include <QtGui/QWindow>
#include <QtGui/QOpenGLContext>
#include <QtGui/QOpenGLFunctions>
#include <QOpenGLWindow>
#include <QOpenGLWidget>
#ifdef Q_OS_WIN
@ -56,7 +58,7 @@ void CrashCheckStart() {
const char kOptionAllowLinuxNvidiaOpenGL[] = "allow-linux-nvidia-opengl";
Capabilities CheckCapabilities(QWidget *widget) {
Capabilities CheckCapabilities(QWidget *widget, bool avoidWidgetCreation) {
if (ForceDisabled) {
LOG_ONCE(("OpenGL: Force-disabled."));
return {};
@ -88,19 +90,43 @@ Capabilities CheckCapabilities(QWidget *widget) {
}
CrashCheckStart();
auto tester = QOpenGLWidget(widget);
tester.setFormat(format);
tester.grabFramebuffer(); // Force initialize().
if (!tester.window()->windowHandle()) {
tester.window()->createWinId();
const auto tester = [&] {
std::unique_ptr<QObject> result;
if (avoidWidgetCreation) {
const auto w = new QOpenGLWindow();
auto e = QResizeEvent(QSize(), QSize());
w->setFormat(format);
w->create();
static_cast<QObject*>(w)->event(&e); // Force initialize().
w->grabFramebuffer(); // Force makeCurrent().
result.reset(w);
} else {
const auto w = new QOpenGLWidget(widget);
w->setFormat(format);
w->grabFramebuffer(); // Force initialize().
if (!w->window()->windowHandle()) {
w->window()->createWinId();
}
result.reset(w);
}
return result;
}();
const auto testerWidget = avoidWidgetCreation
? nullptr
: static_cast<QOpenGLWidget*>(tester.get());
const auto testerWindow = avoidWidgetCreation
? static_cast<QOpenGLWindow*>(tester.get())
: nullptr;
/*const auto testerQWindow = avoidWidgetCreation
? static_cast<QWindow*>(tester.get())
: testerWidget->window()->windowHandle();*/
CrashCheckFinish();
const auto context = tester.context();
const auto context = avoidWidgetCreation ? testerWindow->context() : testerWidget->context();
if (!context
|| !context->isValid()/*
// This check doesn't work for a widget with WA_NativeWindow.
|| !context->makeCurrent(tester.window()->windowHandle())*/) {
|| !context->makeCurrent(testerQWindow)*/) {
LOG_ONCE(("OpenGL: Could not create widget in a window."));
return {};
}

4
ui/gl/gl_detection.h
View file

@ -24,7 +24,9 @@ struct Capabilities {
bool transparency = false;
};
[[nodiscard]] Capabilities CheckCapabilities(QWidget *widget = nullptr);
[[nodiscard]] Capabilities CheckCapabilities(
QWidget *widget = nullptr,
bool avoidWidgetCreation = false);
[[nodiscard]] Backend ChooseBackendDefault(Capabilities capabilities);
void ForceDisable(bool disable);