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39
40#include "qsgsoftwareadaptation_p.h"
41#include "qsgsoftwarecontext_p.h"
42#include "qsgsoftwarerenderloop_p.h"
43#include "qsgsoftwarethreadedrenderloop_p.h"
44
45#include <private/qguiapplication_p.h>
46#include <qpa/qplatformintegration.h>
47
48QT_BEGIN_NAMESPACE
49
50QSGSoftwareAdaptation::QSGSoftwareAdaptation(QObject *parent)
51 : QSGContextPlugin(parent)
52{
53}
54
55QStringList QSGSoftwareAdaptation::keys() const
56{
57 return QStringList() << QLatin1String("software") << QLatin1String("softwarecontext");
58}
59
60QSGContext *QSGSoftwareAdaptation::create(const QString &) const
61{
62 if (!instance)
63 instance = new QSGSoftwareContext();
64 return instance;
65}
66
67QSGContextFactoryInterface::Flags QSGSoftwareAdaptation::flags(const QString &) const
68{
69 // Claim we support adaptable shader effects, then return null for the
70 // shader effect node. The result is shader effects not being rendered,
71 // with the application working fine in all other respects.
72 return QSGContextFactoryInterface::SupportsShaderEffectNode;
73}
74
75QSGRenderLoop *QSGSoftwareAdaptation::createWindowManager()
76{
77#if QT_CONFIG(thread)
78 static bool threaded = false;
79 static bool envChecked = false;
80 if (!envChecked) {
81 envChecked = true;
82 threaded = qgetenv(varName: "QSG_RENDER_LOOP") == "threaded";
83 }
84
85 if (threaded)
86 return new QSGSoftwareThreadedRenderLoop;
87#endif
88
89 return new QSGSoftwareRenderLoop();
90}
91
92QSGSoftwareContext *QSGSoftwareAdaptation::instance = nullptr;
93
94QT_END_NAMESPACE
95

source code of qtdeclarative/src/quick/scenegraph/adaptations/software/qsgsoftwareadaptation.cpp