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#include "waylandsurfacenode.h"
#include "waylandsurfaceitem.h"
#include <QtCore/QMutexLocker>
#include <QtQuick/QSGTexture>
#include <QtQuick/QSGSimpleTextureNode>
#include <QtQuick/QSGFlatColorMaterial>
WaylandSurfaceNode::WaylandSurfaceNode(WaylandSurfaceItem *item)
: m_item(item)
, m_textureUpdated(false)
, m_useTextureAlpha(false)
, m_geometry(QSGGeometry::defaultAttributes_TexturedPoint2D(), 4)
{
m_textureMaterial = WaylandSurfaceTextureMaterial::createMaterial();
m_opaqueTextureMaterial = WaylandSurfaceTextureOpaqueMaterial::createMaterial();
m_currentMaterial = m_opaqueTextureMaterial;
setGeometry(&m_geometry);
setMaterial(m_currentMaterial);
if (m_item)
m_item->m_node = this;
setFlag(UsePreprocess,true);
}
WaylandSurfaceNode::~WaylandSurfaceNode()
{
QMutexLocker locker(WaylandSurfaceItem::mutex);
if (m_item)
m_item->m_node = 0;
delete m_textureMaterial;
delete m_opaqueTextureMaterial;
}
void WaylandSurfaceNode::preprocess()
{
QMutexLocker locker(WaylandSurfaceItem::mutex);
//Update if the item is dirty and we haven't done an updateTexture for this frame
if (m_item && m_item->m_damaged && !m_textureUpdated) {
m_item->updateTexture();
updateTexture();
}
//Reset value for next frame: we have not done updatePaintNode yet
m_textureUpdated = false;
}
void WaylandSurfaceNode::updateTexture()
{
Q_ASSERT(m_item && m_item->textureProvider());
//If m_item->useTextureAlpha has changed to true use m_texureMaterial
//otherwise use m_opaqueTextureMaterial.
if (m_item->useTextureAlpha() != m_useTextureAlpha) {
m_useTextureAlpha = m_item->useTextureAlpha();
if (m_useTextureAlpha) {
m_currentMaterial = m_textureMaterial;
} else {
m_currentMaterial = m_opaqueTextureMaterial;
}
setMaterial(m_currentMaterial);
}
QSGTexture *texture = m_item->textureProvider()->texture();
setTexture(texture);
}
void WaylandSurfaceNode::setRect(const QRectF &rect)
{
if (m_rect == rect)
return;
m_rect = rect;
if (texture()) {
QSize ts = texture()->textureSize();
QRectF sourceRect(0, 0, ts.width(), ts.height());
QSGGeometry::updateTexturedRectGeometry(&m_geometry, m_rect, texture()->convertToNormalizedSourceRect(sourceRect));
}
}
void WaylandSurfaceNode::setTexture(QSGTexture *texture)
{
if (m_currentMaterial->state()->texture() == texture)
return;
m_currentMaterial->state()->setTexture(texture);
QSize ts = texture->textureSize();
QRectF sourceRect(0, 0, ts.width(), ts.height());
QSGGeometry::updateTexturedRectGeometry(&m_geometry, m_rect, texture->convertToNormalizedSourceRect(sourceRect));
markDirty(DirtyMaterial);
}
QSGTexture *WaylandSurfaceNode::texture() const
{
return m_currentMaterial->state()->texture();
}
void WaylandSurfaceNode::setItem(WaylandSurfaceItem *item)
{
m_item = item;
}
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