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| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** |
| ** This file is part of the QtQuick module of the Qt Toolkit. |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
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| ****************************************************************************/ |
| |
| #include "qsgd3d12painternode_p.h" |
| #include "qsgd3d12rendercontext_p.h" |
| #include "qsgd3d12engine_p.h" |
| #include <private/qquickitem_p.h> |
| #include <qmath.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| QSGD3D12PainterTexture::QSGD3D12PainterTexture(QSGD3D12Engine *engine) |
| : QSGD3D12Texture(engine) |
| { |
| } |
| |
| void QSGD3D12PainterTexture::bind() |
| { |
| if (m_image.isNull()) { |
| if (!m_id) { |
| m_id = m_engine->genTexture(); |
| m_engine->createTexture(m_id, QSize(16, 16), QImage::Format_RGB32, 0); |
| } |
| } else if (m_image.size() != lastSize) { |
| lastSize = m_image.size(); |
| if (m_id) |
| m_engine->releaseTexture(m_id); |
| m_id = m_engine->genTexture(); |
| m_engine->createTexture(m_id, m_image.size(), m_image.format(), QSGD3D12Engine::TextureWithAlpha); |
| m_engine->queueTextureUpload(m_id, m_image); |
| } else if (!dirty.isEmpty()) { |
| const int bpl = m_image.bytesPerLine(); |
| const uchar *p = m_image.constBits() + dirty.y() * bpl + dirty.x() * 4; |
| QImage subImg(p, dirty.width(), dirty.height(), bpl, QImage::Format_ARGB32_Premultiplied); |
| m_engine->queueTextureUpload(m_id, subImg, dirty.topLeft()); |
| } |
| |
| dirty = QRect(); |
| |
| m_engine->useTexture(m_id); |
| } |
| |
| QSGD3D12PainterNode::QSGD3D12PainterNode(QQuickPaintedItem *item) |
| : m_item(item), |
| m_engine(static_cast<QSGD3D12RenderContext *>(QQuickItemPrivate::get(item)->sceneGraphRenderContext())->engine()), |
| m_texture(new QSGD3D12PainterTexture(m_engine)), |
| m_geometry(QSGGeometry::defaultAttributes_TexturedPoint2D(), 4), |
| m_dirtyGeometry(false), |
| m_dirtyContents(false) |
| { |
| setGeometry(&m_geometry); |
| m_material.setTexture(m_texture); |
| setMaterial(&m_material); |
| } |
| |
| QSGD3D12PainterNode::~QSGD3D12PainterNode() |
| { |
| delete m_texture; |
| } |
| |
| void QSGD3D12PainterNode::setPreferredRenderTarget(QQuickPaintedItem::RenderTarget) |
| { |
| // always QImage-based |
| } |
| |
| void QSGD3D12PainterNode::setSize(const QSize &size) |
| { |
| if (m_size == size) |
| return; |
| |
| m_size = size; |
| m_dirtyGeometry = true; |
| } |
| |
| void QSGD3D12PainterNode::setDirty(const QRect &dirtyRect) |
| { |
| m_dirtyRect = dirtyRect; |
| m_dirtyContents = true; |
| markDirty(DirtyMaterial); |
| } |
| |
| void QSGD3D12PainterNode::setOpaquePainting(bool) |
| { |
| // ignored |
| } |
| |
| void QSGD3D12PainterNode::setLinearFiltering(bool linearFiltering) |
| { |
| m_material.setFiltering(linearFiltering ? QSGTexture::Linear : QSGTexture::Nearest); |
| markDirty(DirtyMaterial); |
| } |
| |
| void QSGD3D12PainterNode::setMipmapping(bool) |
| { |
| // ### not yet |
| } |
| |
| void QSGD3D12PainterNode::setSmoothPainting(bool s) |
| { |
| if (m_smoothPainting == s) |
| return; |
| |
| m_smoothPainting = s; |
| m_dirtyContents = true; |
| markDirty(DirtyMaterial); |
| } |
| |
| void QSGD3D12PainterNode::setFillColor(const QColor &c) |
| { |
| if (m_fillColor == c) |
| return; |
| |
| m_fillColor = c; |
| m_dirtyContents = true; |
| markDirty(DirtyMaterial); |
| } |
| |
| void QSGD3D12PainterNode::setContentsScale(qreal s) |
| { |
| if (m_contentsScale == s) |
| return; |
| |
| m_contentsScale = s; |
| m_dirtyContents = true; |
| markDirty(DirtyMaterial); |
| } |
| |
| void QSGD3D12PainterNode::setFastFBOResizing(bool) |
| { |
| // nope |
| } |
| |
| void QSGD3D12PainterNode::setTextureSize(const QSize &size) |
| { |
| if (m_textureSize == size) |
| return; |
| |
| m_textureSize = size; |
| m_dirtyGeometry = true; |
| } |
| |
| QImage QSGD3D12PainterNode::toImage() const |
| { |
| return *m_texture->image(); |
| } |
| |
| void QSGD3D12PainterNode::update() |
| { |
| if (m_dirtyGeometry) { |
| m_dirtyGeometry = false; |
| QRectF src(0, 0, 1, 1); |
| QRectF dst(QPointF(0, 0), m_size); |
| QSGGeometry::updateTexturedRectGeometry(&m_geometry, dst, src); |
| markDirty(DirtyGeometry); |
| } |
| |
| QImage *img = m_texture->image(); |
| if (img->size() != m_textureSize) { |
| *img = QImage(m_textureSize, QImage::Format_ARGB32_Premultiplied); |
| img->fill(Qt::transparent); |
| m_dirtyContents = true; |
| } |
| |
| if (m_dirtyContents) { |
| m_dirtyContents = false; |
| if (!img->isNull()) { |
| QRect dirtyRect = m_dirtyRect.isNull() ? QRect(QPoint(0, 0), m_size) : m_dirtyRect; |
| QPainter painter; |
| painter.begin(img); |
| if (m_smoothPainting) |
| painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::SmoothPixmapTransform); |
| |
| QRect clipRect; |
| QRect dirtyTextureRect; |
| |
| if (m_contentsScale == 1) { |
| float scaleX = m_textureSize.width() / (float) m_size.width(); |
| float scaleY = m_textureSize.height() / (float) m_size.height(); |
| painter.scale(scaleX, scaleY); |
| clipRect = dirtyRect; |
| dirtyTextureRect = QRectF(dirtyRect.x() * scaleX, |
| dirtyRect.y() * scaleY, |
| dirtyRect.width() * scaleX, |
| dirtyRect.height() * scaleY).toAlignedRect(); |
| } else { |
| painter.scale(m_contentsScale, m_contentsScale); |
| QRect sclip(qFloor(dirtyRect.x() / m_contentsScale), |
| qFloor(dirtyRect.y() / m_contentsScale), |
| qCeil(dirtyRect.width() / m_contentsScale + dirtyRect.x() / m_contentsScale |
| - qFloor(dirtyRect.x() / m_contentsScale)), |
| qCeil(dirtyRect.height() / m_contentsScale + dirtyRect.y() / m_contentsScale |
| - qFloor(dirtyRect.y() / m_contentsScale))); |
| clipRect = sclip; |
| dirtyTextureRect = dirtyRect; |
| } |
| |
| // only clip if we were originally updating only a subrect |
| if (!m_dirtyRect.isNull()) |
| painter.setClipRect(clipRect); |
| |
| painter.setCompositionMode(QPainter::CompositionMode_Source); |
| painter.fillRect(clipRect, m_fillColor); |
| painter.setCompositionMode(QPainter::CompositionMode_SourceOver); |
| |
| m_item->paint(&painter); |
| painter.end(); |
| |
| m_texture->dirty = dirtyTextureRect; |
| } |
| m_dirtyRect = QRect(); |
| } |
| } |
| |
| QSGTexture *QSGD3D12PainterNode::texture() const |
| { |
| return m_texture; |
| } |
| |
| QT_END_NAMESPACE |
