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39
40#include "texture_p.h"
41
42#include <QDebug>
43#include <QOpenGLFunctions>
44#include <QOpenGLTexture>
45#include <Qt3DCore/qpropertyupdatedchange.h>
46#include <Qt3DCore/qpropertynodeaddedchange.h>
47#include <Qt3DCore/qpropertynoderemovedchange.h>
48
49#include <Qt3DRender/private/texture_p.h>
50#include <Qt3DRender/private/qabstracttexture_p.h>
51#include <Qt3DRender/private/managers_p.h>
52
53QT_BEGIN_NAMESPACE
54
55using namespace Qt3DCore;
56
57namespace Qt3DRender {
58namespace Render {
59
60Texture::Texture()
61 // We need backend -> frontend notifications to update the status of the texture
62 : BackendNode(ReadWrite)
63 , m_dirty(DirtyImageGenerators|DirtyProperties|DirtyParameters|DirtyDataGenerator)
64 , m_sharedTextureId(-1)
65{
66}
67
68Texture::~Texture()
69{
70 // We do not abandon the api texture
71 // because if the dtor is called that means
72 // the manager was destroyed otherwise cleanup
73 // would have been called
74}
75
76void Texture::addDirtyFlag(DirtyFlags flags)
77{
78 QMutexLocker lock(&m_flagsMutex);
79 m_dirty |= flags;
80 if (m_renderer)
81 markDirty(changes: AbstractRenderer::TexturesDirty);
82}
83
84Texture::DirtyFlags Texture::dirtyFlags()
85{
86 QMutexLocker lock(&m_flagsMutex);
87 return m_dirty;
88}
89
90void Texture::unsetDirty()
91{
92 QMutexLocker lock(&m_flagsMutex);
93 m_dirty = Texture::NotDirty;
94}
95
96// This is called by Renderer::updateGLResources
97// when the texture has been marked for cleanup
98void Texture::cleanup()
99{
100 // Whoever calls this must make sure to also check if this
101 // texture is being referenced by a shared API specific texture (GLTexture)
102 m_dataFunctor.reset();
103 m_textureImageIds.clear();
104 m_pendingTextureDataUpdates.clear();
105 m_sharedTextureId = -1;
106
107 // set default values
108 m_properties = {};
109 m_parameters = {};
110
111 m_dirty = NotDirty;
112}
113
114void Texture::syncFromFrontEnd(const QNode *frontEnd, bool firstTime)
115{
116 BackendNode::syncFromFrontEnd(frontEnd, firstTime);
117 const QAbstractTexture *node = qobject_cast<const QAbstractTexture *>(object: frontEnd);
118 if (!node)
119 return;
120
121 TextureProperties p = m_properties;
122 p.width = node->width();
123 p.height = node->height();
124 p.depth = node->depth();
125 p.format = node->format();
126 p.target = node->target();
127 p.generateMipMaps = node->generateMipMaps();
128 p.layers = node->layers();
129 p.samples = node->samples();
130 p.mipLevels = static_cast<const QAbstractTexturePrivate*>(QAbstractTexturePrivate::get(q: node))->m_mipmapLevels;
131 if (p != m_properties) {
132 m_properties = p;
133 addDirtyFlag(flags: DirtyProperties);
134 }
135
136 TextureParameters q = m_parameters;
137 q.magnificationFilter = node->magnificationFilter();
138 q.minificationFilter = node->minificationFilter();
139 q.wrapModeX = const_cast<QAbstractTexture *>(node)->wrapMode()->x();
140 q.wrapModeY = const_cast<QAbstractTexture *>(node)->wrapMode()->y();
141 q.wrapModeZ = const_cast<QAbstractTexture *>(node)->wrapMode()->z();
142 q.maximumAnisotropy = node->maximumAnisotropy();
143 q.comparisonFunction = node->comparisonFunction();
144 q.comparisonMode = node->comparisonMode();
145 if (q != m_parameters) {
146 m_parameters = q;
147 addDirtyFlag(flags: DirtyParameters);
148 }
149
150 auto newGenerator = node->dataGenerator();
151 if (newGenerator != m_dataFunctor) {
152 setDataGenerator(newGenerator);
153 QAbstractTexturePrivate *dTexture = static_cast<QAbstractTexturePrivate *>(QNodePrivate::get(q: const_cast<QNode *>(frontEnd)));
154 dTexture->setStatus(QAbstractTexture::Loading);
155 }
156
157 QAbstractTexturePrivate *dnode = dynamic_cast<QAbstractTexturePrivate *>(QAbstractTexturePrivate::get(q: const_cast<QAbstractTexture *>(node)));
158 if (dnode) {
159 for (const QTextureDataUpdate &pendingUpdate : dnode->m_pendingDataUpdates)
160 addTextureDataUpdate(update: pendingUpdate);
161 dnode->m_pendingDataUpdates.clear();
162
163 auto ids = Qt3DCore::qIdsForNodes(nodes: dnode->m_textureImages);
164 std::sort(first: std::begin(cont&: ids), last: std::end(cont&: ids));
165 if (ids != m_textureImageIds) {
166 m_textureImageIds = ids;
167 addDirtyFlag(flags: DirtyImageGenerators);
168 }
169
170 if (dnode->m_sharedTextureId != m_sharedTextureId) {
171 m_sharedTextureId = dnode->m_sharedTextureId;
172 addDirtyFlag(flags: DirtySharedTextureId);
173 }
174 }
175}
176
177// Called by sceneChangeEvent or TextureDownloadRequest (both in AspectThread context)
178void Texture::setDataGenerator(const QTextureGeneratorPtr &generator)
179{
180 m_dataFunctor = generator;
181 addDirtyFlag(flags: DirtyDataGenerator);
182}
183
184bool Texture::isValid(TextureImageManager *manager) const
185{
186 for (const QNodeId &id : m_textureImageIds) {
187 TextureImage *img = manager->lookupResource(id);
188 if (img == nullptr)
189 return false;
190 }
191 return true;
192}
193
194void Texture::initializeFromPeer(const Qt3DCore::QNodeCreatedChangeBasePtr &change)
195{
196 const auto typedChange = qSharedPointerCast<Qt3DCore::QNodeCreatedChange<QAbstractTextureData>>(src: change);
197 const auto &data = typedChange->data;
198
199 m_properties.target = data.target;
200 m_properties.format = data.format;
201 m_properties.width = data.width;
202 m_properties.height = data.height;
203 m_properties.depth = data.depth;
204 m_properties.generateMipMaps = data.autoMipMap;
205 m_properties.layers = data.layers;
206 m_properties.samples = data.samples;
207 m_parameters.minificationFilter = data.minFilter;
208 m_parameters.magnificationFilter = data.magFilter;
209 m_parameters.wrapModeX = data.wrapModeX;
210 m_parameters.wrapModeY = data.wrapModeY;
211 m_parameters.wrapModeZ = data.wrapModeZ;
212 m_parameters.maximumAnisotropy = data.maximumAnisotropy;
213 m_parameters.comparisonFunction = data.comparisonFunction;
214 m_parameters.comparisonMode = data.comparisonMode;
215 m_dataFunctor = data.dataFunctor;
216 m_sharedTextureId = data.sharedTextureId;
217
218 m_textureImageIds = data.textureImageIds;
219 if (m_textureImageIds.size())
220 addDirtyFlag(flags: DirtyImageGenerators);
221
222 const QVector<QTextureDataUpdate> initialDataUpdates = data.initialDataUpdates;
223 for (const QTextureDataUpdate &initialUpdate : initialDataUpdates)
224 addTextureDataUpdate(update: initialUpdate);
225
226 addDirtyFlag(flags: DirtyFlags(DirtyImageGenerators|DirtyProperties|DirtyParameters));
227 if (m_sharedTextureId > 0)
228 addDirtyFlag(flags: DirtySharedTextureId);
229}
230
231void Texture::addTextureDataUpdate(const QTextureDataUpdate &update)
232{
233 m_pendingTextureDataUpdates.push_back(t: update);
234 addDirtyFlag(flags: DirtyPendingDataUpdates);
235}
236
237
238TextureFunctor::TextureFunctor(AbstractRenderer *renderer,
239 TextureManager *textureNodeManager)
240 : m_renderer(renderer)
241 , m_textureNodeManager(textureNodeManager)
242{
243}
244
245Qt3DCore::QBackendNode *TextureFunctor::create(const Qt3DCore::QNodeCreatedChangeBasePtr &change) const
246{
247 Texture *backend = m_textureNodeManager->getOrCreateResource(id: change->subjectId());
248 backend->setRenderer(m_renderer);
249 // Remove id from cleanupList if for some reason we were in the dirty list of texture
250 // (Can happen when a node destroyed is followed by a node created change
251 // in the same loop, when changing parent for instance)
252 m_textureNodeManager->removeTextureIdToCleanup(id: change->subjectId());
253 return backend;
254}
255
256Qt3DCore::QBackendNode *TextureFunctor::get(Qt3DCore::QNodeId id) const
257{
258 return m_textureNodeManager->lookupResource(id);
259}
260
261void TextureFunctor::destroy(Qt3DCore::QNodeId id) const
262{
263 m_textureNodeManager->addTextureIdToCleanup(id);
264 // We add ourselves to the dirty list to tell the shared texture managers
265 // in the renderer that this texture has been destroyed
266 m_textureNodeManager->releaseResource(id);
267}
268
269
270} // namespace Render
271} // namespace Qt3DRender
272
273QT_END_NAMESPACE
274

source code of qt3d/src/render/texture/texture.cpp