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| ** This file is part of the QtQuick module of the Qt Toolkit. |
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| ****************************************************************************/ |
| |
| #include "qsgopenvgnodevisitor.h" |
| #include "qsgopenvginternalrectanglenode.h" |
| #include "qsgopenvginternalimagenode.h" |
| #include "qsgopenvgpublicnodes.h" |
| #include "qsgopenvgglyphnode_p.h" |
| #include "qsgopenvgpainternode.h" |
| #if QT_CONFIG(quick_sprite) |
| #include "qsgopenvgspritenode.h" |
| #endif |
| #include "qsgopenvgrenderable.h" |
| |
| #include "qopenvgcontext_p.h" |
| |
| #include <QtQuick/qsgsimplerectnode.h> |
| #include <QtQuick/qsgsimpletexturenode.h> |
| #include <QtQuick/qsgrendernode.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| QSGOpenVGNodeVisitor::QSGOpenVGNodeVisitor() |
| { |
| //Store the current matrix state |
| QVector<VGfloat> matrix(9); |
| vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE); |
| vgGetMatrix(matrix.data()); |
| |
| m_transformStack.push(QOpenVGMatrix(matrix.constData())); |
| |
| // Opacity |
| m_opacityState.push(1.0f); |
| } |
| |
| bool QSGOpenVGNodeVisitor::visit(QSGTransformNode *node) |
| { |
| const QVector<float> matrixData = { node->matrix().constData()[0], node->matrix().constData()[1], node->matrix().constData()[3], |
| node->matrix().constData()[4], node->matrix().constData()[5], node->matrix().constData()[7], |
| node->matrix().constData()[12], node->matrix().constData()[13], node->matrix().constData()[15] }; |
| const QOpenVGMatrix matrix2d(matrixData.constData()); |
| |
| m_transformStack.push(m_transformStack.top() * matrix2d); |
| return true; |
| } |
| |
| void QSGOpenVGNodeVisitor::endVisit(QSGTransformNode *) |
| { |
| m_transformStack.pop(); |
| } |
| |
| bool QSGOpenVGNodeVisitor::visit(QSGClipNode *node) |
| { |
| VGMaskOperation maskOperation = VG_INTERSECT_MASK; |
| if (m_clipStack.count() == 0) { |
| vgSeti(VG_MASKING, VG_TRUE); |
| vgMask(0,VG_FILL_MASK, 0, 0, VG_MAXINT, VG_MAXINT); |
| } |
| |
| // Render clip node geometry to mask |
| vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE); |
| vgLoadIdentity(); |
| VGPath clipPath = generateClipPath(node->clipRect()); |
| vgRenderToMask(clipPath, VG_FILL_PATH, maskOperation); |
| |
| m_clipStack.push(clipPath); |
| |
| return true; |
| } |
| |
| void QSGOpenVGNodeVisitor::endVisit(QSGClipNode *) |
| { |
| // Remove clip node geometry from mask |
| auto clipState = m_clipStack.pop(); |
| vgDestroyPath(clipState); |
| |
| if (m_clipStack.count() == 0) { |
| vgSeti(VG_MASKING, VG_FALSE); |
| } else { |
| // Recreate the mask |
| vgMask(0,VG_FILL_MASK, 0, 0, VG_MAXINT, VG_MAXINT); |
| vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE); |
| vgLoadIdentity(); |
| for (auto path : qAsConst(m_clipStack)) { |
| vgRenderToMask(path, VG_FILL_PATH, VG_INTERSECT_MASK); |
| } |
| } |
| } |
| |
| bool QSGOpenVGNodeVisitor::visit(QSGGeometryNode *node) |
| { |
| if (QSGSimpleRectNode *rectNode = dynamic_cast<QSGSimpleRectNode *>(node)) { |
| // TODO: Try and render the QSGSimpleRectNode |
| Q_UNUSED(rectNode) |
| return false; |
| } else if (QSGSimpleTextureNode *tn = dynamic_cast<QSGSimpleTextureNode *>(node)) { |
| // TODO: Try and render the QSGSimpleTextureNode |
| Q_UNUSED(tn) |
| return false; |
| } else if (QSGOpenVGNinePatchNode *nn = dynamic_cast<QSGOpenVGNinePatchNode *>(node)) { |
| renderRenderableNode(nn); |
| } else if (QSGOpenVGRectangleNode *rn = dynamic_cast<QSGOpenVGRectangleNode *>(node)) { |
| renderRenderableNode(rn); |
| } else if (QSGOpenVGImageNode *n = dynamic_cast<QSGOpenVGImageNode *>(node)) { |
| renderRenderableNode(n); |
| } else { |
| // We dont know, so skip |
| return false; |
| } |
| |
| return true; |
| } |
| |
| void QSGOpenVGNodeVisitor::endVisit(QSGGeometryNode *) |
| { |
| } |
| |
| bool QSGOpenVGNodeVisitor::visit(QSGOpacityNode *node) |
| { |
| m_opacityState.push(m_opacityState.top() * node->opacity()); |
| return true; |
| } |
| |
| void QSGOpenVGNodeVisitor::endVisit(QSGOpacityNode *) |
| { |
| m_opacityState.pop(); |
| } |
| |
| bool QSGOpenVGNodeVisitor::visit(QSGInternalImageNode *node) |
| { |
| renderRenderableNode(static_cast<QSGOpenVGInternalImageNode*>(node)); |
| return true; |
| } |
| |
| void QSGOpenVGNodeVisitor::endVisit(QSGInternalImageNode *) |
| { |
| } |
| |
| bool QSGOpenVGNodeVisitor::visit(QSGPainterNode *node) |
| { |
| renderRenderableNode(static_cast<QSGOpenVGPainterNode*>(node)); |
| return true; |
| } |
| |
| void QSGOpenVGNodeVisitor::endVisit(QSGPainterNode *) |
| { |
| } |
| |
| bool QSGOpenVGNodeVisitor::visit(QSGInternalRectangleNode *node) |
| { |
| renderRenderableNode(static_cast<QSGOpenVGInternalRectangleNode*>(node)); |
| return true; |
| } |
| |
| void QSGOpenVGNodeVisitor::endVisit(QSGInternalRectangleNode *) |
| { |
| } |
| |
| bool QSGOpenVGNodeVisitor::visit(QSGGlyphNode *node) |
| { |
| renderRenderableNode(static_cast<QSGOpenVGGlyphNode*>(node)); |
| return true; |
| } |
| |
| void QSGOpenVGNodeVisitor::endVisit(QSGGlyphNode *) |
| { |
| } |
| |
| bool QSGOpenVGNodeVisitor::visit(QSGRootNode *) |
| { |
| return true; |
| } |
| |
| void QSGOpenVGNodeVisitor::endVisit(QSGRootNode *) |
| { |
| } |
| |
| #if QT_CONFIG(quick_sprite) |
| bool QSGOpenVGNodeVisitor::visit(QSGSpriteNode *node) |
| { |
| renderRenderableNode(static_cast<QSGOpenVGSpriteNode*>(node)); |
| return true; |
| } |
| |
| void QSGOpenVGNodeVisitor::endVisit(QSGSpriteNode *) |
| { |
| } |
| #endif |
| |
| bool QSGOpenVGNodeVisitor::visit(QSGRenderNode *) |
| { |
| return true; |
| } |
| |
| void QSGOpenVGNodeVisitor::endVisit(QSGRenderNode *) |
| { |
| } |
| |
| VGPath QSGOpenVGNodeVisitor::generateClipPath(const QRectF &rect) const |
| { |
| VGPath clipPath = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F, 1, 0, 0, 0, |
| VG_PATH_CAPABILITY_APPEND_TO); |
| |
| // Create command list |
| static const VGubyte rectCommands[] = { |
| VG_MOVE_TO_ABS, |
| VG_LINE_TO_ABS, |
| VG_LINE_TO_ABS, |
| VG_LINE_TO_ABS, |
| VG_CLOSE_PATH |
| }; |
| |
| const QOpenVGMatrix &transform = m_transformStack.top(); |
| |
| // Create command data |
| QVector<VGfloat> coordinates(8); |
| const QPointF topLeft = transform.map(rect.topLeft()); |
| const QPointF topRight = transform.map(rect.topRight()); |
| const QPointF bottomLeft = transform.map(rect.bottomLeft()); |
| const QPointF bottomRight = transform.map(rect.bottomRight()); |
| coordinates[0] = bottomLeft.x(); |
| coordinates[1] = bottomLeft.y(); |
| coordinates[2] = bottomRight.x(); |
| coordinates[3] = bottomRight.y(); |
| coordinates[4] = topRight.x(); |
| coordinates[5] = topRight.y(); |
| coordinates[6] = topLeft.x(); |
| coordinates[7] = topLeft.y(); |
| |
| vgAppendPathData(clipPath, 5, rectCommands, coordinates.constData()); |
| return clipPath; |
| } |
| |
| void QSGOpenVGNodeVisitor::renderRenderableNode(QSGOpenVGRenderable *node) |
| { |
| if (!node) |
| return; |
| node->setTransform(m_transformStack.top()); |
| node->setOpacity(m_opacityState.top()); |
| node->render(); |
| } |
| |
| QT_END_NAMESPACE |