2 * Copyright (c) 2021 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include <dali-toolkit/internal/controls/gl-view/drawable-view-impl.h>
22 #include <dali/devel-api/adaptor-framework/lifecycle-controller.h>
23 #include <dali/devel-api/adaptor-framework/window-devel.h>
24 #include <dali/devel-api/rendering/renderer-devel.h>
25 #include <dali/integration-api/debug.h>
26 #include <dali/public-api/rendering/renderer.h>
27 #include <dali/public-api/signals/render-callback.h>
29 namespace Dali::Toolkit::Internal
31 Dali::Toolkit::GlView DrawableView::New(GlView::BackendMode backendMode)
33 auto* impl = new DrawableView(backendMode);
34 Dali::Toolkit::GlView handle = Dali::Toolkit::GlView(*impl);
39 DrawableView::DrawableView(GlView::BackendMode backendMode)
40 : Dali::Toolkit::Internal::GlViewImpl( backendMode),
41 mRenderingMode(Toolkit::GlView::RenderingMode::CONTINUOUS),
46 mRenderCallback = RenderCallback::New( this, &DrawableView::OnRenderCallback);
48 // Create NativeRenderer
49 Dali::Internal::NativeRendererCreateInfo createInfo;
50 createInfo.maxOffscreenBuffers = 2u;
51 createInfo.threadEnabled = (backendMode == GlView::BackendMode::DIRECT_RENDERING_THREADED);
52 createInfo.presentationMode = Dali::Internal::NativeRendererCreateInfo::PresentationMode::FIFO;
53 mNativeRenderer = std::make_unique<Dali::Internal::DrawableViewNativeRenderer>(createInfo);
56 DrawableView::~DrawableView() = default;
58 void DrawableView::RegisterGlCallbacks(CallbackBase* initCallback, CallbackBase* renderFrameCallback, CallbackBase* terminateCallback)
60 mNativeRenderer->RegisterGlCallbacks( initCallback, renderFrameCallback, terminateCallback );
63 void DrawableView::SetResizeCallback(CallbackBase* resizeCallback)
65 mOnResizeCallback.reset( resizeCallback );
68 bool DrawableView::SetGraphicsConfig(bool depth, bool stencil, int msaa, Dali::Toolkit::GlView::GraphicsApiVersion version)
70 // Currently, the settings are not relevant for the DirectRendering feature as all the
71 // setup is inherited from DALi graphics backend.
75 void DrawableView::SetRenderingMode(Dali::Toolkit::GlView::RenderingMode mode)
77 mRenderingMode = mode;
78 Renderer renderer = Self().GetRendererAt(0);
80 if(mRenderingMode == Dali::Toolkit::GlView::RenderingMode::ON_DEMAND)
82 renderer.SetProperty(DevelRenderer::Property::RENDERING_BEHAVIOR, DevelRenderer::Rendering::IF_REQUIRED);
86 renderer.SetProperty(DevelRenderer::Property::RENDERING_BEHAVIOR, DevelRenderer::Rendering::CONTINUOUSLY);
90 Dali::Toolkit::GlView::RenderingMode DrawableView::GetRenderingMode() const
92 return mRenderingMode;
95 void DrawableView::RenderOnce()
98 // TODO: without rendering on the separate thread the RenderOnce won't
99 // work as expected. Potential implementation of threading may enable that
103 void DrawableView::OnInitialize()
107 // Adding VisibilityChange Signal.
109 Dali::DevelActor::VisibilityChangedSignal(self).Connect(this, &DrawableView::OnControlVisibilityChanged);
112 void DrawableView::OnSizeSet(const Vector3& targetSize)
114 Control::OnSizeSet(targetSize);
116 mSurfaceSize = targetSize;
118 // If the callbacks are set then schedule execution of resize callback
119 if(mRenderCallback && mNativeRenderer)
121 mNativeRenderer->Resize( uint32_t(targetSize.width), uint32_t(targetSize.height));
122 mSurfaceResized = true;
126 void DrawableView::OnControlVisibilityChanged(Dali::Actor actor, bool visible, Dali::DevelActor::VisibilityChange::Type type)
128 // Ignored due to lack dedicated rendering thread
131 void DrawableView::OnWindowVisibilityChanged(Window window, bool visible)
133 // Ignored due to lack dedicated rendering thread
136 void DrawableView::OnSceneConnection(int depth)
138 Control::OnSceneConnection(depth);
141 Window window = DevelWindow::Get(self);
143 // Despite OnWindowVisibilityChanged() is ignored it still should follow
144 // the designed behaviour of GlView so signal is connected regardless
147 DevelWindow::VisibilityChangedSignal(window).Connect(this, &DrawableView::OnWindowVisibilityChanged);
151 void DrawableView::OnSceneDisconnection()
153 Control::OnSceneDisconnection();
155 mNativeRenderer->Terminate();
158 void DrawableView::AddRenderer()
161 Renderer renderer = Renderer::New( *mRenderCallback );
162 self.AddRenderer(renderer);
165 bool DrawableView::OnRenderCallback( const RenderCallbackInput& renderCallbackInput )
169 mNativeRenderer->PushRenderCallbackInputData( renderCallbackInput );
173 if( mCurrentViewState == ViewState::INIT )
175 mNativeRenderer->InvokeGlInitCallback(renderCallbackInput);
176 mCurrentViewState = ViewState::RENDER;
181 mNativeRenderer->Resize( uint32_t(mSurfaceSize.width), uint32_t(mSurfaceSize.height) );
182 mSurfaceResized = false;
185 if( mCurrentViewState == ViewState::RENDER )
187 // The mSurfaceResized is set by another thread so atomic check must be provided
188 bool expected{ true };
189 if(mSurfaceResized.compare_exchange_weak( expected, false,
190 std::memory_order_release,
191 std::memory_order_relaxed
192 ) && mOnResizeCallback)
194 CallbackBase::Execute(*mOnResizeCallback, static_cast<int>(mSurfaceSize.x), static_cast<int>(mSurfaceSize.y));
197 mNativeRenderer->InvokeGlRenderCallback(renderCallbackInput);
200 // The terminate callback isn't easy to implement for DR. The NativeImage backend
201 // calls it when the GlView is being destroyed. For DrawableView it means that
202 // the RenderCallback won't be executed (as it is a part of graphics pipeline).
203 // We don't have currently have any way to know whether the View will be destroyed and
204 // to execute last native draw command in the pipeline.
206 // else if( mCurrentViewState == ViewState::TERMINATE )
208 // CallbackBase::Execute(*mOnTerminateCallback);