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qsgsimpletexturenode.cpp

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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.-
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22** ensure the GNU Lesser General Public License version 3 requirements-
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37**-
38****************************************************************************/-
39-
40-
41#include "qsgsimpletexturenode.h"-
42#include <private/qsgnode_p.h>-
43-
44QT_BEGIN_NAMESPACE-
45-
46class QSGSimpleTextureNodePrivate : public QSGGeometryNodePrivate-
47{-
48public:-
49 QSGSimpleTextureNodePrivate()-
50 : texCoordMode(QSGSimpleTextureNode::NoTransform)-
51 , isAtlasTexture(false)-
52 , ownsTexture(false)-
53 {}
executed 18 times by 2 tests: end of block
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54-
55 QRectF sourceRect;-
56 QSGSimpleTextureNode::TextureCoordinatesTransformMode texCoordMode;-
57 uint isAtlasTexture : 1;-
58 uint ownsTexture : 1;-
59};-
60-
61static void qsgsimpletexturenode_update(QSGGeometry *g,-
62 QSGTexture *texture,-
63 const QRectF &rect,-
64 QRectF sourceRect,-
65 QSGSimpleTextureNode::TextureCoordinatesTransformMode texCoordMode)-
66{-
67 if (!texture)
!textureDescription
TRUEnever evaluated
FALSEevaluated 56 times by 2 tests
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68 return;
never executed: return;
0
69-
70 if (!sourceRect.width() || !sourceRect.height()) {
!sourceRect.width()Description
TRUEevaluated 52 times by 2 tests
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FALSEevaluated 4 times by 1 test
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!sourceRect.height()Description
TRUEnever evaluated
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71 QSize ts = texture->textureSize();-
72 sourceRect = QRectF(0, 0, ts.width(), ts.height());-
73 }
executed 52 times by 2 tests: end of block
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74-
75 // Maybe transform the texture coordinates-
76 if (texCoordMode.testFlag(QSGSimpleTextureNode::MirrorHorizontally)) {
texCoordMode.t...rHorizontally)Description
TRUEnever evaluated
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77 float tmp = sourceRect.left();-
78 sourceRect.setLeft(sourceRect.right());-
79 sourceRect.setRight(tmp);-
80 }
never executed: end of block
0
81 if (texCoordMode.testFlag(QSGSimpleTextureNode::MirrorVertically)) {
texCoordMode.t...rorVertically)Description
TRUEnever evaluated
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82 float tmp = sourceRect.top();-
83 sourceRect.setTop(sourceRect.bottom());-
84 sourceRect.setBottom(tmp);-
85 }
never executed: end of block
0
86-
87 QSGGeometry::updateTexturedRectGeometry(g, rect, texture->convertToNormalizedSourceRect(sourceRect));-
88}
executed 56 times by 2 tests: end of block
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89-
90/*!-
91 \class QSGSimpleTextureNode-
92 \brief The QSGSimpleTextureNode class is provided for convenience to easily draw-
93 textured content using the QML scene graph.-
94-
95 \inmodule QtQuick-
96-
97 \warning The simple texture node class must have a texture before being-
98 added to the scene graph to be rendered.-
99-
100 \warning This utility class is only functional when running with the OpenGL-
101 or software backends of the Qt Quick scenegraph. For a proper cross-platform-
102 alternative prefer using QSGImageNode via-
103 QQuickWindow::createImageNode() or QSGEngine::createImageNode().-
104-
105 \deprecated-
106*/-
107-
108/*!-
109 Constructs a new simple texture node-
110 */-
111QSGSimpleTextureNode::QSGSimpleTextureNode()-
112 : QSGGeometryNode(*new QSGSimpleTextureNodePrivate)-
113 , m_geometry(QSGGeometry::defaultAttributes_TexturedPoint2D(), 4)-
114{-
115 setGeometry(&m_geometry);-
116 setMaterial(&m_material);-
117 setOpaqueMaterial(&m_opaque_material);-
118 m_material.setMipmapFiltering(QSGTexture::None);-
119 m_opaque_material.setMipmapFiltering(QSGTexture::None);-
120#ifdef QSG_RUNTIME_DESCRIPTION-
121 qsgnode_set_description(this, QLatin1String("simpletexture"));-
122#endif-
123}
executed 18 times by 2 tests: end of block
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124-
125/*!-
126 Destroys the texture node-
127 */-
128QSGSimpleTextureNode::~QSGSimpleTextureNode()-
129{-
130 Q_D(QSGSimpleTextureNode);-
131 if (d->ownsTexture)
d->ownsTextureDescription
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132 delete m_material.texture();
executed 4 times by 1 test: delete m_material.texture();
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133}
executed 18 times by 2 tests: end of block
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134-
135/*!-
136 Sets the filtering to be used for this texture node to \a filtering.-
137-
138 For smooth scaling, use QSGTexture::Linear; for normal scaling, use-
139 QSGTexture::Nearest.-
140 */-
141void QSGSimpleTextureNode::setFiltering(QSGTexture::Filtering filtering)-
142{-
143 if (m_material.filtering() == filtering)
m_material.fil...) == filteringDescription
TRUEevaluated 10 times by 1 test
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144 return;
executed 10 times by 1 test: return;
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145-
146 m_material.setFiltering(filtering);-
147 m_opaque_material.setFiltering(filtering);-
148 markDirty(DirtyMaterial);-
149}
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150-
151-
152/*!-
153 Returns the filtering currently set on this texture node-
154 */-
155QSGTexture::Filtering QSGSimpleTextureNode::filtering() const-
156{-
157 return m_material.filtering();
never executed: return m_material.filtering();
0
158}-
159-
160-
161/*!-
162 Sets the target rect of this texture node to \a r.-
163 */-
164void QSGSimpleTextureNode::setRect(const QRectF &r)-
165{-
166 if (m_rect == r)
m_rect == rDescription
TRUEevaluated 2 times by 1 test
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FALSEevaluated 22 times by 2 tests
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167 return;
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168 m_rect = r;-
169 Q_D(QSGSimpleTextureNode);-
170 qsgsimpletexturenode_update(&m_geometry, texture(), m_rect, d->sourceRect, d->texCoordMode);-
171 markDirty(DirtyGeometry);-
172}
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173-
174/*!-
175 \fn void QSGSimpleTextureNode::setRect(qreal x, qreal y, qreal w, qreal h)-
176 \overload-
177-
178 Sets the rectangle of this texture node to begin at (\a x, \a y) and have-
179 width \a w and height \a h.-
180 */-
181-
182/*!-
183 Returns the target rect of this texture node.-
184 */-
185QRectF QSGSimpleTextureNode::rect() const-
186{-
187 return m_rect;
never executed: return m_rect;
0
188}-
189-
190/*!-
191 Sets the source rect of this texture node to \a r.-
192-
193 \since 5.5-
194 */-
195void QSGSimpleTextureNode::setSourceRect(const QRectF &r)-
196{-
197 Q_D(QSGSimpleTextureNode);-
198 if (d->sourceRect == r)
d->sourceRect == rDescription
TRUEnever evaluated
FALSEevaluated 4 times by 1 test
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199 return;
never executed: return;
0
200 d->sourceRect = r;-
201 qsgsimpletexturenode_update(&m_geometry, texture(), m_rect, d->sourceRect, d->texCoordMode);-
202 markDirty(DirtyGeometry);-
203}
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204-
205/*!-
206 \fn void QSGSimpleTextureNode::setSourceRect(qreal x, qreal y, qreal w, qreal h)-
207 \overload-
208 \since 5.5-
209-
210 Sets the rectangle of this texture node to show its texture from (\a x, \a y) and-
211 have width \a w and height \a h relatively to the QSGTexture::textureSize.-
212 */-
213-
214/*!-
215 Returns the source rect of this texture node.-
216-
217 \since 5.5-
218 */-
219QRectF QSGSimpleTextureNode::sourceRect() const-
220{-
221 Q_D(const QSGSimpleTextureNode);-
222 return d->sourceRect;
never executed: return d->sourceRect;
0
223}-
224-
225/*!-
226 Sets the texture of this texture node to \a texture.-
227-
228 Use setOwnsTexture() to set whether the node should take-
229 ownership of the texture. By default, the node does not-
230 take ownership.-
231-
232 \warning A texture node must have a texture before being added-
233 to the scenegraph to be rendered.-
234 */-
235void QSGSimpleTextureNode::setTexture(QSGTexture *texture)-
236{-
237 Q_ASSERT(texture);-
238 Q_D(QSGSimpleTextureNode);-
239 if (d->ownsTexture)
d->ownsTextureDescription
TRUEevaluated 6 times by 1 test
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240 delete m_material.texture();
executed 6 times by 1 test: delete m_material.texture();
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241 m_material.setTexture(texture);-
242 m_opaque_material.setTexture(texture);-
243 qsgsimpletexturenode_update(&m_geometry, texture, m_rect, d->sourceRect, d->texCoordMode);-
244-
245 DirtyState dirty = DirtyMaterial;-
246 // It would be tempting to skip the extra bit here and instead use-
247 // m_material.texture to get the old state, but that texture could-
248 // have been deleted in the mean time.-
249 bool wasAtlas = d->isAtlasTexture;-
250 d->isAtlasTexture = texture->isAtlasTexture();-
251 if (wasAtlas || d->isAtlasTexture)
wasAtlasDescription
TRUEnever evaluated
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d->isAtlasTextureDescription
TRUEnever evaluated
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252 dirty |= DirtyGeometry;
never executed: dirty |= DirtyGeometry;
0
253 markDirty(dirty);-
254}
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255-
256-
257-
258/*!-
259 Returns the texture for this texture node-
260 */-
261QSGTexture *QSGSimpleTextureNode::texture() const-
262{-
263 return m_material.texture();
executed 46 times by 2 tests: return m_material.texture();
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264}-
265-
266/*!-
267 \enum QSGSimpleTextureNode::TextureCoordinatesTransformFlag-
268-
269 The TextureCoordinatesTransformFlag enum is used to specify the-
270 mode used to generate texture coordinates for a textured quad.-
271-
272 \value NoTransform Texture coordinates are oriented with window coordinates-
273 i.e. with origin at top-left.-
274-
275 \value MirrorHorizontally Texture coordinates are inverted in the horizontal axis with-
276 respect to window coordinates-
277-
278 \value MirrorVertically Texture coordinates are inverted in the vertical axis with-
279 respect to window coordinates-
280 */-
281-
282/*!-
283 Sets the method used to generate texture coordinates to \a mode. This can be used to obtain-
284 correct orientation of the texture. This is commonly needed when using a third party OpenGL-
285 library to render to texture as OpenGL has an inverted y-axis relative to Qt Quick.-
286-
287 \sa textureCoordinatesTransform()-
288 */-
289void QSGSimpleTextureNode::setTextureCoordinatesTransform(QSGSimpleTextureNode::TextureCoordinatesTransformMode mode)-
290{-
291 Q_D(QSGSimpleTextureNode);-
292 if (d->texCoordMode == mode)
d->texCoordMode == modeDescription
TRUEevaluated 20 times by 1 test
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FALSEnever evaluated
0-20
293 return;
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294 d->texCoordMode = mode;-
295 qsgsimpletexturenode_update(&m_geometry, texture(), m_rect, d->sourceRect, d->texCoordMode);-
296 markDirty(DirtyMaterial);-
297}
never executed: end of block
0
298-
299/*!-
300 Returns the mode used to generate texture coordinates for this node.-
301-
302 \sa setTextureCoordinatesTransform()-
303 */-
304QSGSimpleTextureNode::TextureCoordinatesTransformMode QSGSimpleTextureNode::textureCoordinatesTransform() const-
305{-
306 Q_D(const QSGSimpleTextureNode);-
307 return d->texCoordMode;
never executed: return d->texCoordMode;
0
308}-
309-
310/*!-
311 Sets whether the node takes ownership of the texture to \a owns.-
312-
313 By default, the node does not take ownership of the texture.-
314-
315 \sa setTexture()-
316-
317 \since 5.4-
318 */-
319void QSGSimpleTextureNode::setOwnsTexture(bool owns)-
320{-
321 Q_D(QSGSimpleTextureNode);-
322 d->ownsTexture = owns;-
323}
executed 4 times by 1 test: end of block
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324-
325/*!-
326 Returns \c true if the node takes ownership of the texture; otherwise returns \c false.-
327-
328 \since 5.4-
329 */-
330bool QSGSimpleTextureNode::ownsTexture() const-
331{-
332 Q_D(const QSGSimpleTextureNode);-
333 return d->ownsTexture;
executed 6 times by 1 test: return d->ownsTexture;
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334}-
335-
336QT_END_NAMESPACE-
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