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Request a high-priority EGL contexts

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Summary:
This patch implements using EGL_IMG_context_priority to request
high-priority rendering contexts if the extension is available.

EGL_IMG_context_priority is currently used in this fashion by
e.g. Android's SurfaceFlinger (RenderEngine.cpp) and libweston
(gl-renderer.c) and seems promising given this widespread
acceptance.

Reviewers: #kwin, graesslin, romangg, davidedmundson

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D11572
This commit is contained in:
Eike Hein 2018-03-22 18:20:37 +09:00
parent 7cde4b1028
commit 2c26215d7e
6 changed files with 206 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
abstract_opengl_context_attribute_builder.cpp
View file

@ -32,7 +32,8 @@ QDebug AbstractOpenGLContextAttributeBuilder::operator<<(QDebug dbg) const
dbg.nospace() << "Robust:\t" << isRobust() << "\n";
dbg.nospace() << "Forward compatible:\t" << isForwardCompatible() << "\n";
dbg.nospace() << "Core profile:\t" << isCoreProfile() << "\n";
dbg.nospace() << "Compatibility profile:\t" << isCompatibilityProfile();
dbg.nospace() << "Compatibility profile:\t" << isCompatibilityProfile() << "\n";
dbg.nospace() << "High priority:\t" << isHighPriority();
return dbg;
}

9
abstract_opengl_context_attribute_builder.h
View file

@ -94,6 +94,14 @@ public:
return m_resetOnVideoMemoryPurge;
}
void setHighPriority(bool highPriority) {
m_highPriority = highPriority;
}
bool isHighPriority() const {
return m_highPriority;
}
virtual std::vector<int> build() const = 0;
QDebug operator<<(QDebug dbg) const;
@ -107,6 +115,7 @@ private:
bool m_coreProfile = false;
bool m_compatibilityProfile = false;
bool m_resetOnVideoMemoryPurge = false;
bool m_highPriority = false;
};
inline QDebug operator<<(QDebug dbg, const AbstractOpenGLContextAttributeBuilder *attribs)

121
autotests/opengl_context_attribute_builder_test.cpp
View file

@ -45,6 +45,7 @@ private Q_SLOTS:
void testResetOnVideoMemoryPurge();
void testVersionMajor();
void testVersionMajorAndMinor();
void testHighPriority();
void testEgl_data();
void testEgl();
void testGles_data();
@ -75,6 +76,7 @@ void OpenGLContextAttributeBuilderTest::testCtor()
QCOMPARE(builder.isCoreProfile(), false);
QCOMPARE(builder.isCompatibilityProfile(), false);
QCOMPARE(builder.isResetOnVideoMemoryPurge(), false);
QCOMPARE(builder.isHighPriority(), false);
}
void OpenGLContextAttributeBuilderTest::testRobust()
@ -123,6 +125,16 @@ void OpenGLContextAttributeBuilderTest::testResetOnVideoMemoryPurge()
QCOMPARE(builder.isResetOnVideoMemoryPurge(), false);
}
void OpenGLContextAttributeBuilderTest::testHighPriority()
{
MockOpenGLContextAttributeBuilder builder;
QCOMPARE(builder.isHighPriority(), false);
builder.setHighPriority(true);
QCOMPARE(builder.isHighPriority(), true);
builder.setHighPriority(false);
QCOMPARE(builder.isHighPriority(), false);
}
void OpenGLContextAttributeBuilderTest::testVersionMajor()
{
MockOpenGLContextAttributeBuilder builder;
@ -158,54 +170,106 @@ void OpenGLContextAttributeBuilderTest::testEgl_data()
QTest::addColumn<bool>("forwardCompatible");
QTest::addColumn<bool>("coreProfile");
QTest::addColumn<bool>("compatibilityProfile");
QTest::addColumn<bool>("highPriority");
QTest::addColumn<std::vector<int>>("expectedAttribs");
QTest::newRow("fallback") << false << 0 << 0 << false << false << false << false << std::vector<int>{EGL_NONE};
QTest::newRow("legacy/robust") << false << 0 << 0 << true << false << false << false <<
QTest::newRow("fallback") << false << 0 << 0 << false << false << false << false << false << std::vector<int>{EGL_NONE};
QTest::newRow("legacy/robust") << false << 0 << 0 << true << false << false << false << false <<
std::vector<int>{
EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR, EGL_LOSE_CONTEXT_ON_RESET_KHR,
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR,
EGL_NONE};
QTest::newRow("core") << true << 3 << 1 << false << false << false << false <<
QTest::newRow("legacy/robust/high priority") << false << 0 << 0 << true << false << false << false << true <<
std::vector<int>{
EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR, EGL_LOSE_CONTEXT_ON_RESET_KHR,
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR,
EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_HIGH_IMG,
EGL_NONE};
QTest::newRow("core") << true << 3 << 1 << false << false << false << false << false <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 1,
EGL_NONE};
QTest::newRow("core/robust") << true << 3 << 1 << true << false << false << false <<
QTest::newRow("core/high priority") << true << 3 << 1 << false << false << false << false << true <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 1,
EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_HIGH_IMG,
EGL_NONE};
QTest::newRow("core/robust") << true << 3 << 1 << true << false << false << false << false <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 1,
EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR, EGL_LOSE_CONTEXT_ON_RESET_KHR,
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR,
EGL_NONE};
QTest::newRow("core/robust/forward compatible") << true << 3 << 1 << true << true << false << false <<
QTest::newRow("core/robust/high priority") << true << 3 << 1 << true << false << false << false << true <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 1,
EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR, EGL_LOSE_CONTEXT_ON_RESET_KHR,
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR,
EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_HIGH_IMG,
EGL_NONE};
QTest::newRow("core/robust/forward compatible") << true << 3 << 1 << true << true << false << false << false <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 1,
EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR, EGL_LOSE_CONTEXT_ON_RESET_KHR,
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR | EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR,
EGL_NONE};
QTest::newRow("core/forward compatible") << true << 3 << 1 << false << true << false << false <<
QTest::newRow("core/robust/forward compatible/high priority") << true << 3 << 1 << true << true << false << false << true <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 1,
EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR, EGL_LOSE_CONTEXT_ON_RESET_KHR,
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR | EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR,
EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_HIGH_IMG,
EGL_NONE};
QTest::newRow("core/forward compatible") << true << 3 << 1 << false << true << false << false << false <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 1,
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR,
EGL_NONE};
QTest::newRow("core profile/forward compatible") << true << 3 << 2 << false << true << true << false <<
QTest::newRow("core/forward compatible/high priority") << true << 3 << 1 << false << true << false << false << true <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 1,
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR,
EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_HIGH_IMG,
EGL_NONE};
QTest::newRow("core profile/forward compatible") << true << 3 << 2 << false << true << true << false << false <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 2,
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR,
EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR,
EGL_NONE};
QTest::newRow("compatibility profile/forward compatible") << true << 3 << 2 << false << true << false << true <<
QTest::newRow("core profile/forward compatible/high priority") << true << 3 << 2 << false << true << true << false << true <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 2,
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR,
EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR,
EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_HIGH_IMG,
EGL_NONE};
QTest::newRow("compatibility profile/forward compatible") << true << 3 << 2 << false << true << false << true << false <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 2,
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR,
EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR, EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR,
EGL_NONE};
QTest::newRow("core profile/robust/forward compatible") << true << 3 << 2 << true << true << true << false <<
QTest::newRow("compatibility profile/forward compatible/high priority") << true << 3 << 2 << false << true << false << true << true <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 2,
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR,
EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR, EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR,
EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_HIGH_IMG,
EGL_NONE};
QTest::newRow("core profile/robust/forward compatible") << true << 3 << 2 << true << true << true << false << false <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 2,
@ -213,7 +277,16 @@ void OpenGLContextAttributeBuilderTest::testEgl_data()
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR | EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR,
EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR,
EGL_NONE};
QTest::newRow("compatibility profile/robust/forward compatible") << true << 3 << 2 << true << true << false << true <<
QTest::newRow("core profile/robust/forward compatible/high priority") << true << 3 << 2 << true << true << true << false << true <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 2,
EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR, EGL_LOSE_CONTEXT_ON_RESET_KHR,
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR | EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR,
EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR,
EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_HIGH_IMG,
EGL_NONE};
QTest::newRow("compatibility profile/robust/forward compatible") << true << 3 << 2 << true << true << false << true << false <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 2,
@ -221,6 +294,15 @@ void OpenGLContextAttributeBuilderTest::testEgl_data()
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR | EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR,
EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR, EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR,
EGL_NONE};
QTest::newRow("compatibility profile/robust/forward compatible/high priority") << true << 3 << 2 << true << true << false << true << true <<
std::vector<int>{
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_CONTEXT_MINOR_VERSION_KHR, 2,
EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR, EGL_LOSE_CONTEXT_ON_RESET_KHR,
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR | EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR,
EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR, EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR,
EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_HIGH_IMG,
EGL_NONE};
}
void OpenGLContextAttributeBuilderTest::testEgl()
@ -232,6 +314,7 @@ void OpenGLContextAttributeBuilderTest::testEgl()
QFETCH(bool, forwardCompatible);
QFETCH(bool, coreProfile);
QFETCH(bool, compatibilityProfile);
QFETCH(bool, highPriority);
EglContextAttributeBuilder builder;
if (requestVersion) {
@ -241,6 +324,7 @@ void OpenGLContextAttributeBuilderTest::testEgl()
builder.setForwardCompatible(forwardCompatible);
builder.setCoreProfile(coreProfile);
builder.setCompatibilityProfile(compatibilityProfile);
builder.setHighPriority(highPriority);
auto attribs = builder.build();
QTEST(attribs, "expectedAttribs");
@ -249,25 +333,38 @@ void OpenGLContextAttributeBuilderTest::testEgl()
void OpenGLContextAttributeBuilderTest::testGles_data()
{
QTest::addColumn<bool>("robust");
QTest::addColumn<bool>("highPriority");
QTest::addColumn<std::vector<int>>("expectedAttribs");
QTest::newRow("robust") << true << std::vector<int>{
QTest::newRow("robust") << true << false << std::vector<int>{
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_CONTEXT_OPENGL_ROBUST_ACCESS_EXT, EGL_TRUE,
EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_EXT, EGL_LOSE_CONTEXT_ON_RESET_EXT,
EGL_NONE};
QTest::newRow("normal") << false << std::vector<int>{
QTest::newRow("robust/high priority") << true << true << std::vector<int>{
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_CONTEXT_OPENGL_ROBUST_ACCESS_EXT, EGL_TRUE,
EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_EXT, EGL_LOSE_CONTEXT_ON_RESET_EXT,
EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_HIGH_IMG,
EGL_NONE};
QTest::newRow("normal") << false << false << std::vector<int>{
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE};
QTest::newRow("normal/high priority") << false << true << std::vector<int>{
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_HIGH_IMG,
EGL_NONE};
}
void OpenGLContextAttributeBuilderTest::testGles()
{
QFETCH(bool, robust);
QFETCH(bool, highPriority);
EglOpenGLESContextAttributeBuilder builder;
builder.setVersion(2);
builder.setRobust(robust);
builder.setHighPriority(highPriority);
auto attribs = builder.build();
QTEST(attribs, "expectedAttribs");

8
egl_context_attribute_builder.cpp
View file

@ -52,6 +52,10 @@ std::vector<int> EglContextAttributeBuilder::build() const
attribs.emplace_back(EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR);
}
}
if (isHighPriority()) {
attribs.emplace_back(EGL_CONTEXT_PRIORITY_LEVEL_IMG);
attribs.emplace_back(EGL_CONTEXT_PRIORITY_HIGH_IMG);
}
attribs.emplace_back(EGL_NONE);
return attribs;
}
@ -67,6 +71,10 @@ std::vector<int> EglOpenGLESContextAttributeBuilder::build() const
attribs.emplace_back(EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_EXT);
attribs.emplace_back(EGL_LOSE_CONTEXT_ON_RESET_EXT);
}
if (isHighPriority()) {
attribs.emplace_back(EGL_CONTEXT_PRIORITY_LEVEL_IMG);
attribs.emplace_back(EGL_CONTEXT_PRIORITY_HIGH_IMG);
}
attribs.emplace_back(EGL_NONE);
return attribs;
}

33
platformsupport/scenes/opengl/abstract_egl_backend.cpp
View file

@ -217,30 +217,63 @@ bool AbstractEglBackend::createContext()
{
const bool haveRobustness = hasExtension(QByteArrayLiteral("EGL_EXT_create_context_robustness"));
const bool haveCreateContext = hasExtension(QByteArrayLiteral("EGL_KHR_create_context"));
const bool haveContextPriority = hasExtension(QByteArrayLiteral("EGL_IMG_context_priority"));
std::vector<std::unique_ptr<AbstractOpenGLContextAttributeBuilder>> candidates;
if (isOpenGLES()) {
if (haveCreateContext && haveRobustness && haveContextPriority) {
auto glesRobustPriority = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglOpenGLESContextAttributeBuilder);
glesRobustPriority->setVersion(2);
glesRobustPriority->setRobust(true);
glesRobustPriority->setHighPriority(true);
candidates.push_back(std::move(glesRobustPriority));
}
if (haveCreateContext && haveRobustness) {
auto glesRobust = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglOpenGLESContextAttributeBuilder);
glesRobust->setVersion(2);
glesRobust->setRobust(true);
candidates.push_back(std::move(glesRobust));
}
if (haveContextPriority) {
auto glesPriority = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglOpenGLESContextAttributeBuilder);
glesPriority->setVersion(2);
glesPriority->setHighPriority(true);
candidates.push_back(std::move(glesPriority));
}
auto gles = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglOpenGLESContextAttributeBuilder);
gles->setVersion(2);
candidates.push_back(std::move(gles));
} else {
if (options->glCoreProfile() && haveCreateContext) {
if (haveRobustness && haveContextPriority) {
auto robustCorePriority = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
robustCorePriority->setVersion(3, 1);
robustCorePriority->setRobust(true);
robustCorePriority->setHighPriority(true);
candidates.push_back(std::move(robustCorePriority));
}
if (haveRobustness) {
auto robustCore = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
robustCore->setVersion(3, 1);
robustCore->setRobust(true);
candidates.push_back(std::move(robustCore));
}
if (haveContextPriority) {
auto corePriority = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
corePriority->setVersion(3, 1);
corePriority->setHighPriority(true);
candidates.push_back(std::move(corePriority));
}
auto core = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
core->setVersion(3, 1);
candidates.push_back(std::move(core));
}
if (haveRobustness && haveCreateContext && haveContextPriority) {
auto robustPriority = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
robustPriority->setRobust(true);
robustPriority->setHighPriority(true);
candidates.push_back(std::move(robustPriority));
}
if (haveRobustness && haveCreateContext) {
auto robust = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
robust->setRobust(true);

46
plugins/qpa/abstractplatformcontext.cpp
View file

@ -146,21 +146,48 @@ void AbstractPlatformContext::createContext(EGLContext shareContext)
const QList<QByteArray> extensions = eglExtensions.split(' ');
const bool haveRobustness = extensions.contains(QByteArrayLiteral("EGL_EXT_create_context_robustness"));
const bool haveCreateContext = extensions.contains(QByteArrayLiteral("EGL_KHR_create_context"));
const bool haveContextPriority = extensions.contains(QByteArrayLiteral("EGL_IMG_context_priority"));
std::vector<std::unique_ptr<AbstractOpenGLContextAttributeBuilder>> candidates;
if (isOpenGLES()) {
if (haveCreateContext && haveRobustness && haveContextPriority) {
auto glesRobustPriority = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglOpenGLESContextAttributeBuilder);
glesRobustPriority->setVersion(2);
glesRobustPriority->setRobust(true);
glesRobustPriority->setHighPriority(true);
candidates.push_back(std::move(glesRobustPriority));
}
if (haveCreateContext && haveRobustness) {
auto glesRobust = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglOpenGLESContextAttributeBuilder);
glesRobust->setVersion(2);
glesRobust->setRobust(true);
candidates.push_back(std::move(glesRobust));
}
if (haveContextPriority) {
auto glesPriority = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglOpenGLESContextAttributeBuilder);
glesPriority->setVersion(2);
glesPriority->setHighPriority(true);
candidates.push_back(std::move(glesPriority));
}
auto gles = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglOpenGLESContextAttributeBuilder);
gles->setVersion(2);
candidates.push_back(std::move(gles));
} else {
// Try to create a 3.1 core context
if (m_format.majorVersion() >= 3 && haveCreateContext) {
if (haveRobustness && haveContextPriority) {
auto robustCorePriority = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
robustCorePriority->setVersion(m_format.majorVersion(), m_format.minorVersion());
robustCorePriority->setRobust(true);
robustCorePriority->setForwardCompatible(true);
if (m_format.profile() == QSurfaceFormat::CoreProfile) {
robustCorePriority->setCoreProfile(true);
} else if (m_format.profile() == QSurfaceFormat::CompatibilityProfile) {
robustCorePriority->setCompatibilityProfile(true);
}
robustCorePriority->setHighPriority(true);
candidates.push_back(std::move(robustCorePriority));
}
if (haveRobustness) {
auto robustCore = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
robustCore->setVersion(m_format.majorVersion(), m_format.minorVersion());
@ -173,6 +200,18 @@ void AbstractPlatformContext::createContext(EGLContext shareContext)
}
candidates.push_back(std::move(robustCore));
}
if (haveContextPriority) {
auto corePriority = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
corePriority->setVersion(m_format.majorVersion(), m_format.minorVersion());
corePriority->setForwardCompatible(true);
if (m_format.profile() == QSurfaceFormat::CoreProfile) {
corePriority->setCoreProfile(true);
} else if (m_format.profile() == QSurfaceFormat::CompatibilityProfile) {
corePriority->setCompatibilityProfile(true);
}
corePriority->setHighPriority(true);
candidates.push_back(std::move(corePriority));
}
auto core = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
core->setVersion(m_format.majorVersion(), m_format.minorVersion());
core->setForwardCompatible(true);
@ -183,7 +222,12 @@ void AbstractPlatformContext::createContext(EGLContext shareContext)
}
candidates.push_back(std::move(core));
}
if (haveRobustness && haveCreateContext && haveContextPriority) {
auto robustPriority = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
robustPriority->setRobust(true);
robustPriority->setHighPriority(true);
candidates.push_back(std::move(robustPriority));
}
if (haveRobustness && haveCreateContext) {
auto robust = std::unique_ptr<AbstractOpenGLContextAttributeBuilder>(new EglContextAttributeBuilder);
robust->setRobust(true);