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returning the effective ( not the intended ) size of the texture

This commit is contained in:
Uwe Rathmann 2023-12-28 16:35:27 +01:00
parent ccb79967f4
commit cb9b83bbca
1 changed files with 24 additions and 14 deletions
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38
src/nodes/QskSceneTexture.cpp
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@ -75,6 +75,7 @@ namespace
void setProjection( const QRectF& ); void setProjection( const QRectF& );
void setTextureSize( const QSize& ); void setTextureSize( const QSize& );
QSize textureSize() const;
protected: protected:
void nodeChanged( QSGNode*, QSGNode::DirtyState ) override; void nodeChanged( QSGNode*, QSGNode::DirtyState ) override;
@ -182,6 +183,11 @@ namespace
setViewportRect( r ); setViewportRect( r );
} }
QSize Renderer::textureSize() const
{
return m_fbo ? m_fbo->size() : QSize();
}
void Renderer::render() void Renderer::render()
{ {
m_dirty = false; m_dirty = false;
@ -314,6 +320,22 @@ class QskSceneTexturePrivate final : public QSGTexturePrivate
{ return renderer ? renderer->rhiTexture() : nullptr; } { return renderer ? renderer->rhiTexture() : nullptr; }
#endif #endif
QSize pixelSize() const
{
QSize size( qCeil( rect.width() ), qCeil( rect.height() ) );
size *= devicePixelRatio;
const QSize minSize = context->sceneGraphContext()->minimumFBOSize();
while ( size.width() < minSize.width() )
size.rwidth() *= 2;
while ( size.height() < minSize.height() )
size.rheight() *= 2;
return size;
}
QRectF rect; QRectF rect;
const qreal devicePixelRatio; const qreal devicePixelRatio;
@ -347,19 +369,7 @@ const QSGGeometryNode* QskSceneTexture::textureNode() const
QSize QskSceneTexture::textureSize() const QSize QskSceneTexture::textureSize() const
{ {
Q_D( const QskSceneTexture ); Q_D( const QskSceneTexture );
return d->renderer ? d->renderer->textureSize() : QSize();
QSize size( qCeil( d->rect.width() ), qCeil( d->rect.height() ) );
size *= d->devicePixelRatio;
const QSize minSize = d->context->sceneGraphContext()->minimumFBOSize();
while ( size.width() < minSize.width() )
size.rwidth() *= 2;
while ( size.height() < minSize.height() )
size.rheight() *= 2;
return size;
} }
void QskSceneTexture::render( const QSGRootNode* rootNode, void QskSceneTexture::render( const QSGRootNode* rootNode,
@ -379,7 +389,7 @@ void QskSceneTexture::render( const QSGRootNode* rootNode,
d->renderer->setFinalNode( const_cast< QSGTransformNode* >( finalNode ) ); d->renderer->setFinalNode( const_cast< QSGTransformNode* >( finalNode ) );
d->renderer->setProjection( d->rect ); d->renderer->setProjection( d->rect );
d->renderer->setTextureSize( textureSize() ); d->renderer->setTextureSize( d->pixelSize() );
d->renderer->renderScene(); d->renderer->renderScene();
} }