remove layer usage to reduce vram consumption

Plugins/ZShell/Blobs/blobshape2.cpp

@@ -0,0 +1,67 @@
+#include "blobshape2.hpp"
+#include "blobgroup2.hpp"
+
+#include <algorithm>
+#include <cmath>
+
+BlobShape2::BlobShape2(QQuickItem* parent) : QQuickItem(parent) {}
+
+void BlobShape2::setGroup(BlobGroup2* g) {
+	if (m_group == g) return;
+	if (m_group && isComponentComplete()) unregisterFromGroup();
+	m_group = g;
+	if (m_group && isComponentComplete()) registerWithGroup();
+	emit groupChanged();
+	if (m_group) m_group->markDirty();
+}
+
+void BlobShape2::setRadius(qreal r) {
+	if (qFuzzyCompare(m_radius, r)) return;
+	m_radius = r;
+	emit radiusChanged();
+	if (m_group) m_group->markDirty();
+}
+
+void BlobShape2::componentComplete() {
+	QQuickItem::componentComplete();
+	if (m_group) registerWithGroup();
+}
+
+void BlobShape2::geometryChange(
+	const QRectF& newGeometry, const QRectF& oldGeometry) {
+	QQuickItem::geometryChange(newGeometry, oldGeometry);
+	updateCenteredDeformMatrix();
+
+	// One draw covers the whole group, so any shape change is a group change.
+	if (m_group) m_group->markDirty();
+}
+
+void BlobShape2::updateCenteredDeformMatrix() {
+	const auto cx = static_cast<float>(width()) * 0.5f;
+	const auto cy = static_cast<float>(height()) * 0.5f;
+	QMatrix4x4 result;
+	result.translate(cx, cy);
+	result *= m_deformMatrix;
+	result.translate(-cx, -cy);
+	if (m_centeredDeformMatrix != result) {
+		m_centeredDeformMatrix = result;
+		emit deformMatrixChanged();
+	}
+}
+
+void BlobShape2::cornerRadii(float out[4]) const {
+	const auto maxR = static_cast<float>(std::min(width(), height())) * 0.5f;
+	const auto r = std::min(static_cast<float>(m_radius), maxR);
+	out[0] = r;
+	out[1] = r;
+	out[2] = r;
+	out[3] = r;
+}
+
+void BlobShape2::registerWithGroup() {
+	if (m_group) m_group->addShape(this);
+}
+
+void BlobShape2::unregisterFromGroup() {
+	if (m_group) m_group->removeShape(this);
+}