115 lines
3.4 KiB
C++
115 lines
3.4 KiB
C++
// This file is part of Desktop App Toolkit,
|
|
// a set of libraries for developing nice desktop applications.
|
|
//
|
|
// For license and copyright information please follow this link:
|
|
// https://github.com/desktop-app/legal/blob/master/LEGAL
|
|
//
|
|
#include "ui/gl/gl_detection.h"
|
|
|
|
#include "base/debug_log.h"
|
|
|
|
#include <QtCore/QSet>
|
|
#include <QtGui/QWindow>
|
|
#include <QtGui/QOpenGLContext>
|
|
#include <QtGui/QOpenGLFunctions>
|
|
#include <QtWidgets/QOpenGLWidget>
|
|
|
|
#define LOG_ONCE(x) static auto logged = [&] { LOG(x); return true; }();
|
|
|
|
namespace Ui::GL {
|
|
namespace {
|
|
|
|
bool ForceDisabled/* = false*/;
|
|
|
|
} // namespace
|
|
|
|
Capabilities CheckCapabilities(QWidget *widget) {
|
|
if (ForceDisabled) {
|
|
LOG_ONCE(("OpenGL: Force-disabled."));
|
|
return {};
|
|
}
|
|
auto format = QSurfaceFormat();
|
|
format.setAlphaBufferSize(8);
|
|
if (widget) {
|
|
if (!widget->window()->windowHandle()) {
|
|
widget->window()->createWinId();
|
|
}
|
|
if (!widget->window()->windowHandle()) {
|
|
LOG(("OpenGL: Could not create window for widget."));
|
|
return {};
|
|
}
|
|
if (!widget->window()->windowHandle()->supportsOpenGL()) {
|
|
LOG_ONCE(("OpenGL: Not supported for window."));
|
|
return {};
|
|
}
|
|
}
|
|
auto tester = QOpenGLWidget(widget);
|
|
tester.setFormat(format);
|
|
tester.grabFramebuffer(); // Force initialize().
|
|
const auto context = tester.context();
|
|
if (!context) {
|
|
LOG_ONCE(("OpenGL: Could not create widget in a window."));
|
|
return {};
|
|
}
|
|
const auto functions = context->functions();
|
|
using Feature = QOpenGLFunctions;
|
|
if (!functions->hasOpenGLFeature(Feature::NPOTTextures)) {
|
|
LOG_ONCE(("OpenGL: NPOT textures not supported."));
|
|
return {};
|
|
} else if (!functions->hasOpenGLFeature(Feature::Framebuffers)) {
|
|
LOG_ONCE(("OpenGL: Framebuffers not supported."));
|
|
return {};
|
|
} else if (!functions->hasOpenGLFeature(Feature::Shaders)) {
|
|
LOG_ONCE(("OpenGL: Shaders not supported."));
|
|
return {};
|
|
}
|
|
const auto supported = context->format();
|
|
switch (supported.profile()) {
|
|
case QSurfaceFormat::NoProfile: {
|
|
LOG_ONCE(("OpenGL Profile: None."));
|
|
return {};
|
|
} break;
|
|
case QSurfaceFormat::CoreProfile: {
|
|
LOG_ONCE(("OpenGL Profile: Core."));
|
|
} break;
|
|
case QSurfaceFormat::CompatibilityProfile: {
|
|
LOG_ONCE(("OpenGL Profile: Compatibility."));
|
|
} break;
|
|
}
|
|
static const auto extensionsLogged = [&] {
|
|
const auto renderer = reinterpret_cast<const char*>(
|
|
functions->glGetString(GL_RENDERER));
|
|
LOG(("OpenGL Renderer: %1").arg(renderer ? renderer : "[nullptr]"));
|
|
const auto vendor = reinterpret_cast<const char*>(
|
|
functions->glGetString(GL_VENDOR));
|
|
LOG(("OpenGL Vendor: %1").arg(vendor ? vendor : "[nullptr]"));
|
|
const auto version = reinterpret_cast<const char*>(
|
|
functions->glGetString(GL_VERSION));
|
|
LOG(("OpenGL Version: %1").arg(version ? version : "[nullptr]"));
|
|
auto list = QStringList();
|
|
for (const auto extension : context->extensions()) {
|
|
list.append(QString::fromLatin1(extension));
|
|
}
|
|
LOG(("OpenGL Extensions: %1").arg(list.join(", ")));
|
|
return true;
|
|
}();
|
|
const auto version = u"%1.%2"_q
|
|
.arg(supported.majorVersion())
|
|
.arg(supported.majorVersion());
|
|
auto result = Capabilities{ .supported = true };
|
|
if (supported.alphaBufferSize() >= 8) {
|
|
result.transparency = true;
|
|
LOG_ONCE(("OpenGL: QOpenGLContext created, version: %1."
|
|
).arg(version));
|
|
} else {
|
|
LOG_ONCE(("OpenGL: QOpenGLContext without alpha created, version: %1"
|
|
).arg(version));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void ForceDisable(bool disable) {
|
|
ForceDisabled = disable;
|
|
}
|
|
|
|
} // namespace Ui::GL
|