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39 
40 #ifndef QQUICKSHAPE_P_P_H
41 #define QQUICKSHAPE_P_P_H
42 
43 //
44 //  W A R N I N G
45 //  -------------
46 //
47 // This file is not part of the Qt API.  It exists purely as an
48 // implementation detail.  This header file may change from version to
49 // version without notice, or even be removed.
50 //
51 // We mean it.
52 //
53 
54 #include <QtQuickShapes/private/qquickshapesglobal_p.h>
55 #include <QtQuickShapes/private/qquickshape_p.h>
56 #include <QtQuick/private/qquickitem_p.h>
57 #include <QPainterPath>
58 #include <QColor>
59 #include <QBrush>
60 #include <QElapsedTimer>
61 #include <private/qopenglcontext_p.h>
62 
63 QT_BEGIN_NAMESPACE
64 
65 class QSGPlainTexture;
66 class QRhi;
67 
68 class QQuickAbstractPathRenderer
69 {
70 public:
71     enum Flag {
72         SupportsAsync = 0x01
73     };
74     Q_DECLARE_FLAGS(Flags, Flag)
75 
76     enum FillGradientType { NoGradient = 0, LinearGradient, RadialGradient, ConicalGradient };
77     struct GradientDesc { // can fully describe a linear/radial/conical gradient
78         QGradientStops stops;
79         QQuickShapeGradient::SpreadMode spread;
80         QPointF a; // start (L) or center point (R/C)
81         QPointF b; // end (L) or focal point (R)
82         qreal v0; // center radius (R) or start angle (C)
83         qreal v1; // focal radius (R)
84     };
85 
~QQuickAbstractPathRenderer()86     virtual ~QQuickAbstractPathRenderer() { }
87 
88     // Gui thread
89     virtual void beginSync(int totalCount) = 0;
90     virtual void endSync(bool async) = 0;
setAsyncCallback(void (*)(void *),void *)91     virtual void setAsyncCallback(void (*)(void *), void *) { }
flags()92     virtual Flags flags() const { return {}; }
93     virtual void setPath(int index, const QQuickPath *path) = 0;
94     virtual void setStrokeColor(int index, const QColor &color) = 0;
95     virtual void setStrokeWidth(int index, qreal w) = 0;
96     virtual void setFillColor(int index, const QColor &color) = 0;
97     virtual void setFillRule(int index, QQuickShapePath::FillRule fillRule) = 0;
98     virtual void setJoinStyle(int index, QQuickShapePath::JoinStyle joinStyle, int miterLimit) = 0;
99     virtual void setCapStyle(int index, QQuickShapePath::CapStyle capStyle) = 0;
100     virtual void setStrokeStyle(int index, QQuickShapePath::StrokeStyle strokeStyle,
101                                 qreal dashOffset, const QVector<qreal> &dashPattern) = 0;
102     virtual void setFillGradient(int index, QQuickShapeGradient *gradient) = 0;
103 
104     // Render thread, with gui blocked
105     virtual void updateNode() = 0;
106 };
107 
108 Q_DECLARE_OPERATORS_FOR_FLAGS(QQuickAbstractPathRenderer::Flags)
109 
110 struct QQuickShapeStrokeFillParams
111 {
112     QQuickShapeStrokeFillParams();
113 
114     QColor strokeColor;
115     qreal strokeWidth;
116     QColor fillColor;
117     QQuickShapePath::FillRule fillRule;
118     QQuickShapePath::JoinStyle joinStyle;
119     int miterLimit;
120     QQuickShapePath::CapStyle capStyle;
121     QQuickShapePath::StrokeStyle strokeStyle;
122     qreal dashOffset;
123     QVector<qreal> dashPattern;
124     QQuickShapeGradient *fillGradient;
125 };
126 
127 class Q_QUICKSHAPES_PRIVATE_EXPORT QQuickShapePathPrivate : public QQuickPathPrivate
128 {
129     Q_DECLARE_PUBLIC(QQuickShapePath)
130 
131 public:
132     enum Dirty {
133         DirtyPath = 0x01,
134         DirtyStrokeColor = 0x02,
135         DirtyStrokeWidth = 0x04,
136         DirtyFillColor = 0x08,
137         DirtyFillRule = 0x10,
138         DirtyStyle = 0x20,
139         DirtyDash = 0x40,
140         DirtyFillGradient = 0x80,
141 
142         DirtyAll = 0xFF
143     };
144 
145     QQuickShapePathPrivate();
146 
147     void _q_pathChanged();
148     void _q_fillGradientChanged();
149 
get(QQuickShapePath * p)150     static QQuickShapePathPrivate *get(QQuickShapePath *p) { return p->d_func(); }
151 
152     int dirty;
153     QQuickShapeStrokeFillParams sfp;
154 };
155 
156 class QQuickShapePrivate : public QQuickItemPrivate
157 {
158     Q_DECLARE_PUBLIC(QQuickShape)
159 
160 public:
161     QQuickShapePrivate();
162     ~QQuickShapePrivate();
163 
164     void createRenderer();
165     QSGNode *createNode();
166     void sync();
167 
168     void _q_shapePathChanged();
169     void setStatus(QQuickShape::Status newStatus);
170 
get(QQuickShape * item)171     static QQuickShapePrivate *get(QQuickShape *item) { return item->d_func(); }
172 
173     static void asyncShapeReady(void *data);
174 
175     int effectRefCount;
176     QVector<QQuickShapePath *> sp;
177     QElapsedTimer syncTimer;
178     QQuickAbstractPathRenderer *renderer = nullptr;
179     int syncTimingTotalDirty = 0;
180     int syncTimeCounter = 0;
181     QQuickShape::Status status = QQuickShape::Null;
182     QQuickShape::RendererType rendererType = QQuickShape::UnknownRenderer;
183     QQuickShape::ContainsMode containsMode = QQuickShape::BoundingRectContains;
184     bool spChanged = false;
185     bool async = false;
186     bool enableVendorExts = false;
187     bool syncTimingActive = false;
188 };
189 
190 struct QQuickShapeGradientCacheKey
191 {
QQuickShapeGradientCacheKeyQQuickShapeGradientCacheKey192     QQuickShapeGradientCacheKey(const QGradientStops &stops, QQuickShapeGradient::SpreadMode spread)
193         : stops(stops), spread(spread)
194     { }
195     QGradientStops stops;
196     QQuickShapeGradient::SpreadMode spread;
197     bool operator==(const QQuickShapeGradientCacheKey &other) const
198     {
199         return spread == other.spread && stops == other.stops;
200     }
201 };
202 
203 inline uint qHash(const QQuickShapeGradientCacheKey &v, uint seed = 0)
204 {
205     uint h = seed + v.spread;
206     for (int i = 0; i < 3 && i < v.stops.count(); ++i)
207         h += v.stops[i].second.rgba();
208     return h;
209 }
210 
211 class QQuickShapeGradientCache
212 {
213 public:
214     ~QQuickShapeGradientCache();
215     static QQuickShapeGradientCache *cacheForRhi(QRhi *rhi);
216     QSGTexture *get(const QQuickShapeGradientCacheKey &grad);
217 
218 private:
219     QHash<QQuickShapeGradientCacheKey, QSGPlainTexture *> m_textures;
220 };
221 
222 #if QT_CONFIG(opengl)
223 
224 class QQuickShapeGradientOpenGLCache : public QOpenGLSharedResource
225 {
226 public:
QQuickShapeGradientOpenGLCache(QOpenGLContext * context)227     QQuickShapeGradientOpenGLCache(QOpenGLContext *context) : QOpenGLSharedResource(context->shareGroup()) { }
228     ~QQuickShapeGradientOpenGLCache();
229 
230     void invalidateResource() override;
231     void freeResource(QOpenGLContext *) override;
232 
233     QSGTexture *get(const QQuickShapeGradientCacheKey &grad);
234 
235     static QQuickShapeGradientOpenGLCache *currentCache();
236 
237 private:
238     QHash<QQuickShapeGradientCacheKey, QSGPlainTexture *> m_cache;
239 };
240 
241 #endif // QT_CONFIG(opengl)
242 
243 QT_END_NAMESPACE
244 
245 #endif
246