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36
37#include "resourceaccessor_p.h"
38
39#include <Qt3DRender/qrendertargetoutput.h>
40
41#include <private/qrendertargetoutput_p.h>
42#include <private/nodemanagers_p.h>
43#include <private/rendertargetoutput_p.h>
44#include <private/managers_p.h>
45
46#include <Qt3DRender/qt3drender-config.h>
47#include <QtCore/qmutex.h>
48
49QT_BEGIN_NAMESPACE
50
51namespace Qt3DRender {
52namespace Render {
53
54RenderBackendResourceAccessor::~RenderBackendResourceAccessor()
55{
56
57}
58
59ResourceAccessor::ResourceAccessor(AbstractRenderer *renderer, NodeManagers *mgr)
60 : m_renderer(renderer)
61 , m_textureManager(mgr->textureManager())
62 , m_attachmentManager(mgr->attachmentManager())
63 , m_entityManager(mgr->renderNodesManager())
64{
65
66}
67
68// called by render plugins from arbitrary thread
69bool ResourceAccessor::accessResource(ResourceType type,
70 Qt3DCore::QNodeId nodeId,
71 void **handle,
72 QMutex **lock)
73{
74 switch (type) {
75
76 // This is purely made so that Scene2D works, this should be completely
77 // redesigned to avoid introducing this kind of coupling and reliance on
78 // OpenGL
79 case RenderBackendResourceAccessor::OGLTextureWrite:
80 Q_FALLTHROUGH();
81 case RenderBackendResourceAccessor::OGLTextureRead:
82 {
83 if (m_renderer->api() != API::OpenGL) {
84 qWarning() << "Renderer plugin is not compatible with Scene2D";
85 return false;
86 }
87 return m_renderer->accessOpenGLTexture(nodeId,
88 texture: reinterpret_cast<QOpenGLTexture **>(handle),
89 lock,
90 readonly: type == RenderBackendResourceAccessor::OGLTextureRead);
91 }
92
93 case RenderBackendResourceAccessor::OutputAttachment: {
94 RenderTargetOutput *output = m_attachmentManager->lookupResource(id: nodeId);
95 if (output) {
96 Attachment **attachmentData = reinterpret_cast<Attachment **>(handle);
97 *attachmentData = output->attachment();
98 return true;
99 }
100 break;
101 }
102
103 case RenderBackendResourceAccessor::EntityHandle: {
104 Entity *entity = m_entityManager->lookupResource(id: nodeId);
105 if (entity) {
106 Entity **pEntity = reinterpret_cast<Entity **>(handle);
107 *pEntity = entity;
108 return true;
109 }
110 break;
111 }
112
113 default:
114 break;
115 }
116 return false;
117}
118
119} // namespace Render
120} // namespace Qt3DRender
121
122QT_END_NAMESPACE
123

source code of qt3d/src/render/backend/resourceaccessor.cpp