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qquickshapenvprrenderer_p.h

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1/****************************************************************************-
2**-
3** Copyright (C) 2016 The Qt Company Ltd.-
4** Contact: https://www.qt.io/licensing/-
5**-
6** This file is part of the QtQuick module of the Qt Toolkit.-
7**-
8** $QT_BEGIN_LICENSE:LGPL$-
9** Commercial License Usage-
10** Licensees holding valid commercial Qt licenses may use this file in-
11** accordance with the commercial license agreement provided with the-
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15** information use the contact form at https://www.qt.io/contact-us.-
16**-
17** GNU Lesser General Public License Usage-
18** Alternatively, this file may be used under the terms of the GNU Lesser-
19** General Public License version 3 as published by the Free Software-
20** Foundation and appearing in the file LICENSE.LGPL3 included in the-
21** packaging of this file. Please review the following information to-
22** ensure the GNU Lesser General Public License version 3 requirements-
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.-
24**-
25** GNU General Public License Usage-
26** Alternatively, this file may be used under the terms of the GNU-
27** General Public License version 2.0 or (at your option) the GNU General-
28** Public license version 3 or any later version approved by the KDE Free-
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30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3-
31** included in the packaging of this file. Please review the following-
32** information to ensure the GNU General Public License requirements will-
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35**-
36** $QT_END_LICENSE$-
37**-
38****************************************************************************/-
39-
40#ifndef QQUICKSHAPENVPRRENDERER_P_H-
41#define QQUICKSHAPENVPRRENDERER_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 for the convenience-
48// of a number of Qt sources files. This header file may change from-
49// version to 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_p.h>-
56#include <QtQuickShapes/private/qquicknvprfunctions_p.h>-
57#include <qsgrendernode.h>-
58#include <QColor>-
59#include <QVector4D>-
60#include <QDebug>-
61-
62#if QT_CONFIG(opengl)-
63-
64QT_BEGIN_NAMESPACE-
65-
66class QQuickShapeNvprRenderNode;-
67class QOpenGLFramebufferObject;-
68class QOpenGLBuffer;-
69class QOpenGLExtraFunctions;-
70-
71class QQuickShapeNvprRenderer : public QQuickAbstractPathRenderer-
72{-
73public:-
74 enum Dirty {-
75 DirtyPath = 0x01,-
76 DirtyStyle = 0x02,-
77 DirtyFillRule = 0x04,-
78 DirtyDash = 0x08,-
79 DirtyFillGradient = 0x10,-
80 DirtyList = 0x20-
81 };-
82-
83 void beginSync(int totalCount) override;-
84 void setPath(int index, const QQuickPath *path) override;-
85 void setStrokeColor(int index, const QColor &color) override;-
86 void setStrokeWidth(int index, qreal w) override;-
87 void setFillColor(int index, const QColor &color) override;-
88 void setFillRule(int index, QQuickShapePath::FillRule fillRule) override;-
89 void setJoinStyle(int index, QQuickShapePath::JoinStyle joinStyle, int miterLimit) override;-
90 void setCapStyle(int index, QQuickShapePath::CapStyle capStyle) override;-
91 void setStrokeStyle(int index, QQuickShapePath::StrokeStyle strokeStyle,-
92 qreal dashOffset, const QVector<qreal> &dashPattern) override;-
93 void setFillGradient(int index, QQuickShapeGradient *gradient) override;-
94 void endSync(bool async) override;-
95-
96 void updateNode() override;-
97-
98 void setNode(QQuickShapeNvprRenderNode *node);-
99-
100 struct NvprPath {-
101 QVector<GLubyte> cmd;-
102 QVector<GLfloat> coord;-
103 QByteArray str;-
104 };-
105-
106private:-
107 struct ShapePathGuiData {-
108 int dirty = 0;-
109 NvprPath path;-
110 qreal strokeWidth;-
111 QColor strokeColor;-
112 QColor fillColor;-
113 QQuickShapePath::JoinStyle joinStyle;-
114 int miterLimit;-
115 QQuickShapePath::CapStyle capStyle;-
116 QQuickShapePath::FillRule fillRule;-
117 bool dashActive;-
118 qreal dashOffset;-
119 QVector<qreal> dashPattern;-
120 FillGradientType fillGradientActive;-
121 GradientDesc fillGradient;-
122 };-
123-
124 void convertPath(const QQuickPath *path, ShapePathGuiData *d);-
125-
126 QQuickShapeNvprRenderNode *m_node = nullptr;-
127 int m_accDirty = 0;-
128-
129 QVector<ShapePathGuiData> m_sp;-
130};-
131-
132QDebug operator<<(QDebug debug, const QQuickShapeNvprRenderer::NvprPath &path);-
133-
134class QQuickNvprMaterialManager-
135{-
136public:-
137 enum Material {-
138 MatSolid,-
139 MatLinearGradient,-
140 MatRadialGradient,-
141 MatConicalGradient,-
142-
143 NMaterials-
144 };-
145-
146 struct MaterialDesc {-
147 GLuint ppl = 0;-
148 GLuint prg = 0;-
149 int uniLoc[8];-
150 };-
151-
152 void create(QQuickNvprFunctions *nvpr);-
153 MaterialDesc *activateMaterial(Material m);-
154 void releaseResources();-
155-
156private:-
157 QQuickNvprFunctions *m_nvpr = nullptr;-
158 MaterialDesc m_materials[NMaterials];-
159};-
160-
161class QQuickNvprBlitter-
162{-
163public:-
164 bool create();-
165 void destroy();-
166 bool isCreated() const { return m_program != nullptr; }
never executed: return m_program != nullptr;
0
167 void texturedQuad(GLuint textureId, const QSize &size,-
168 const QMatrix4x4 &proj, const QMatrix4x4 &modelview,-
169 float opacity);-
170-
171private:-
172 QOpenGLShaderProgram *m_program = nullptr;-
173 QOpenGLBuffer *m_buffer = nullptr;-
174 int m_matrixLoc = -1;-
175 int m_opacityLoc = -1;-
176 QSize m_prevSize;-
177};-
178-
179class QQuickShapeNvprRenderNode : public QSGRenderNode-
180{-
181public:-
182 ~QQuickShapeNvprRenderNode();-
183-
184 void render(const RenderState *state) override;-
185 void releaseResources() override;-
186 StateFlags changedStates() const override;-
187 RenderingFlags flags() const override;-
188-
189 static bool isSupported();-
190-
191private:-
192 struct ShapePathRenderData {-
193 GLuint path = 0;-
194 int dirty = 0;-
195 QQuickShapeNvprRenderer::NvprPath source;-
196 GLfloat strokeWidth;-
197 QVector4D strokeColor;-
198 QVector4D fillColor;-
199 GLenum joinStyle;-
200 GLint miterLimit;-
201 GLenum capStyle;-
202 GLenum fillRule;-
203 GLfloat dashOffset;-
204 QVector<GLfloat> dashPattern;-
205 QQuickAbstractPathRenderer::FillGradientType fillGradientActive;-
206 QQuickAbstractPathRenderer::GradientDesc fillGradient;-
207 QOpenGLFramebufferObject *fallbackFbo = nullptr;-
208 bool fallbackValid = false;-
209 QSize fallbackSize;-
210 QPointF fallbackTopLeft;-
211-
212 bool hasFill() const { return !qFuzzyIsNull(fillColor.w()) || fillGradientActive; }
never executed: return !qFuzzyIsNull(fillColor.w()) || fillGradientActive;
0
213 bool hasStroke() const { return strokeWidth >= 0.0f && !qFuzzyIsNull(strokeColor.w()); }
never executed: return strokeWidth >= 0.0f && !qFuzzyIsNull(strokeColor.w());
0
214 };-
215-
216 void updatePath(ShapePathRenderData *d);-
217 void renderStroke(ShapePathRenderData *d, int strokeStencilValue, int writeMask);-
218 void renderFill(ShapePathRenderData *d);-
219 void renderOffscreenFill(ShapePathRenderData *d);-
220 void setupStencilForCover(bool stencilClip, int sv);-
221-
222 static bool nvprInited;-
223 static QQuickNvprFunctions nvpr;-
224 static QQuickNvprMaterialManager mtlmgr;-
225-
226 QQuickNvprBlitter m_fallbackBlitter;-
227 QOpenGLExtraFunctions *f = nullptr;-
228-
229 QVector<ShapePathRenderData> m_sp;-
230-
231 friend class QQuickShapeNvprRenderer;-
232};-
233-
234QT_END_NAMESPACE-
235-
236#endif // QT_CONFIG(opengl)-
237-
238#endif // QQUICKSHAPENVPRRENDERER_P_H-
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