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| |
| #include <QtQuick3DRuntimeRender/private/qssgrendererimpllayerrenderhelper_p.h> |
| #include <QtQuick3DRuntimeRender/private/qssgrenderlayer_p.h> |
| #include <QtQuick3DRuntimeRender/private/qssgrendererutil_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| QSSGLayerRenderHelper::QSSGLayerRenderHelper(const QRectF &inViewport, |
| const QRectF &inScissor, |
| QSSGRenderLayer &inLayer) |
| : m_layer(&inLayer) |
| { |
| |
| m_viewport = inViewport; |
| |
| m_scissor = m_viewport; |
| m_scissor &= inScissor; // ensureInBounds/intersected |
| Q_ASSERT(m_scissor.width() >= 0.0f); |
| Q_ASSERT(m_scissor.height() >= 0.0f); |
| } |
| |
| // This is the viewport the camera will use to setup the projection. |
| QRectF QSSGLayerRenderHelper::layerRenderViewport() const |
| { |
| return m_viewport; |
| } |
| |
| QSize QSSGLayerRenderHelper::textureDimensions() const |
| { |
| quint32 width = (quint32)m_viewport.width(); |
| quint32 height = (quint32)m_viewport.height(); |
| return QSize(QSSGRendererUtil::nextMultipleOf4(width), QSSGRendererUtil::nextMultipleOf4(height)); |
| } |
| |
| QSSGCameraGlobalCalculationResult QSSGLayerRenderHelper::setupCameraForRender(QSSGRenderCamera &inCamera) |
| { |
| return inCamera.calculateGlobalVariables(layerRenderViewport()); |
| } |
| |
| QSSGOption<QVector2D> QSSGLayerRenderHelper::layerMouseCoords(const QRectF &viewport, |
| const QVector2D &inMouseCoords, |
| const QVector2D &inWindowDimensions, |
| bool inForceIntersect) |
| { |
| // First invert the y so we are dealing with numbers in a normal coordinate space. |
| // Second, move into our layer's coordinate space |
| QVector2D correctCoords(inMouseCoords.x(), inWindowDimensions.y() - inMouseCoords.y()); |
| QVector2D theLocalMouse = toRectRelative(viewport, correctCoords); |
| |
| const float theRenderRectWidth = float(viewport.width()); |
| const float theRenderRectHeight = float(viewport.height()); |
| // Crop the mouse to the rect. Apply no further translations. |
| if (inForceIntersect == false |
| && (theLocalMouse.x() < 0.0f || theLocalMouse.x() >= theRenderRectWidth || theLocalMouse.y() < 0.0f |
| || theLocalMouse.y() >= theRenderRectHeight)) { |
| return QSSGEmpty(); |
| } |
| return theLocalMouse; |
| } |
| |
| QSSGOption<QSSGRenderRay> QSSGLayerRenderHelper::pickRay(const QSSGRenderCamera &camera, |
| const QRectF &viewport, |
| const QVector2D &inMouseCoords, |
| const QVector2D &inWindowDimensions, |
| bool inForceIntersect) |
| { |
| QSSGOption<QVector2D> theCoords(layerMouseCoords(viewport, inMouseCoords, inWindowDimensions, inForceIntersect)); |
| if (theCoords.hasValue()) { |
| // The cameras projection is different if we are onscreen vs. offscreen. |
| // When offscreen, we need to move the mouse coordinates into a local space |
| // to the layer. |
| return camera.unproject(*theCoords, viewport); |
| } |
| return QSSGEmpty(); |
| } |
| |
| bool QSSGLayerRenderHelper::isLayerVisible() const |
| { |
| return m_scissor.height() >= 2.0f && m_scissor.width() >= 2.0f; |
| } |
| |
| QT_END_NAMESPACE |