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egl: Add debug option to print all EGLConfigs

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QT_QPA_EGLFS_DEBUG=1 prints the attributes for the chosen EGLContext.
Make QT_QPA_EGLFS_DEBUG=2 print the same for all EGLContexts.

Change-Id: Id161d04789fbd015e29e5a5a89a0901000096ea3
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
(cherry picked from commit d8c771c53acb58cc79cadbb795d59d5e8db7754e)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Laszlo Agocs 2021-02-05 18:22:51 +01:00 committed by Qt Cherry-pick Bot
parent 27337fe242
commit 9fc6a9099e
1 changed files with 15 additions and 0 deletions
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15
src/gui/opengl/platform/egl/qeglplatformcontext.cpp
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@ -194,6 +194,21 @@ QEGLPlatformContext::QEGLPlatformContext(const QSurfaceFormat &format, QPlatform
if (printConfig) {
qDebug() << "Created context for format" << format << "with config:";
q_printEglConfig(m_eglDisplay, m_eglConfig);
static const bool printAllConfigs = qEnvironmentVariableIntValue("QT_QPA_EGLFS_DEBUG") > 1;
if (printAllConfigs) {
EGLint numConfigs = 0;
eglGetConfigs(m_eglDisplay, nullptr, 0, &numConfigs);
QVector<EGLConfig> configs;
configs.resize(numConfigs);
eglGetConfigs(m_eglDisplay, configs.data(), numConfigs, &numConfigs);
qDebug("\nAll EGLConfigs: count=%d", numConfigs);
for (EGLint i = 0; i < numConfigs; ++i) {
qDebug("EGLConfig #%d", i);
q_printEglConfig(m_eglDisplay, configs[i]);
}
qDebug("\n");
}
}
// Cannot just call updateFormatFromGL() since it relies on virtuals. Defer it to initialize().