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platforms/drm: correct multi-gpu mistake

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As all outputs from secondary GPUs are in the same map as the ones from
the primary GPU, EglMultiBackend::findBackend always returned the
primary backend. To fix that, search in secondary backends first
This commit is contained in:
Xaver Hugl 2021-08-30 22:57:44 +02:00
parent 89d49b4d5d
commit 85a6dc3cad
1 changed files with 4 additions and 5 deletions
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9
src/plugins/platforms/drm/egl_multi_backend.cpp
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@ -100,13 +100,12 @@ QSharedPointer<GLTexture> EglMultiBackend::textureForOutput(AbstractOutput *requ
AbstractEglDrmBackend *EglMultiBackend::findBackend(AbstractOutput *output) const
{
for (const auto &backend : qAsConst(m_backends)) {
if (backend->hasOutput(output)) {
return backend;
for (int i = 1; i < m_backends.count(); i++) {
if (m_backends[i]->hasOutput(output)) {
return m_backends[i];
}
}
Q_UNREACHABLE();
return nullptr;
return m_backends[0];
}
bool EglMultiBackend::directScanoutAllowed(AbstractOutput *output) const