1 #ifndef DALI_RENDER_SURFACE_INTERFACE_H
2 #define DALI_RENDER_SURFACE_INTERFACE_H
5 * Copyright (c) 2020 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
22 #include <dali/integration-api/core-enumerations.h>
23 #include <dali/public-api/common/vector-wrapper.h>
24 #include <dali/public-api/math/vector4.h>
25 #include <dali/public-api/math/rect.h>
26 #include <dali/public-api/object/any.h>
31 class DisplayConnection;
32 class ThreadSynchronizationInterface;
38 class AdaptorInternalServices;
39 class GraphicsInterface;
44 * @brief The position and size of the render surface.
46 typedef Dali::Rect<int> PositionSize;
49 * @brief Interface for a render surface onto which Dali draws.
51 * Dali::Adaptor requires a render surface to draw on to. This is
52 * usually a window in the native windowing system, or some other
53 * mapped pixel buffer.
55 * Dali::Application will automatically create a render surface using a window.
57 * The implementation of the factory method below should choose an appropriate
58 * implementation of RenderSurface for the given platform
61 class RenderSurfaceInterface
67 WINDOW_RENDER_SURFACE,
68 PIXMAP_RENDER_SURFACE,
74 * Inlined as this is a pure abstract interface
76 RenderSurfaceInterface()
77 : mAdaptor( nullptr ),
79 mDisplayConnection( nullptr ),
80 mDepthBufferRequired( Integration::DepthBufferAvailable::FALSE ),
81 mStencilBufferRequired( Integration::StencilBufferAvailable::FALSE )
85 * @brief Virtual Destructor.
86 * Inlined as this is a pure abstract interface
88 virtual ~RenderSurfaceInterface() {}
91 * @brief Return the size and position of the surface.
92 * @return The position and size
94 virtual Dali::PositionSize GetPositionSize() const = 0;
98 * @param[out] dpiHorizontal set to the horizontal dpi
99 * @param[out] dpiVertical set to the vertical dpi
101 virtual void GetDpi( unsigned int& dpiHorizontal, unsigned int& dpiVertical ) = 0;
104 * @brief InitializeGraphics the platform specific graphics surface interfaces
106 virtual void InitializeGraphics() = 0;
109 * @brief Creates the Surface
111 virtual void CreateSurface() = 0;
114 * @brief Destroys the Surface
116 virtual void DestroySurface() = 0;
119 * @brief Replace the Surface
120 * @return true if context was lost
122 virtual bool ReplaceGraphicsSurface() = 0;
125 * @brief Resizes the underlying surface.
126 * @param[in] The dimensions of the new position
128 virtual void MoveResize( Dali::PositionSize positionSize ) = 0;
131 * @brief Called when Render thread has started
133 virtual void StartRender() = 0;
136 * @brief Invoked by render thread before Core::Render
137 * If the operation fails, then Core::Render should not be called until there is
138 * a surface to render onto.
139 * @param[in] resizingSurface True if the surface is being resized
140 * @param[in] damagedRects List of damaged rects this render pass
141 * @return True if the operation is successful, False if the operation failed
143 virtual bool PreRender( bool resizingSurface, const std::vector<Rect<int>>& damagedRects, Rect<int>& clippingRect ) = 0;
146 * @brief Invoked by render thread after Core::Render
147 * @param[in] renderToFbo True if render to FBO.
148 * @param[in] replacingSurface True if the surface is being replaced.
149 * @param[in] resizingSurface True if the surface is being resized.
151 virtual void PostRender( bool renderToFbo, bool replacingSurface, bool resizingSurface, const std::vector<Rect<int>>& damagedRects ) = 0;
154 * @brief Invoked by render thread when the thread should be stop
156 virtual void StopRender() = 0;
159 * @brief Invoked by Event Thread when the compositor lock should be released and rendering should resume.
161 virtual void ReleaseLock() = 0;
164 * @brief Sets the ThreadSynchronizationInterface
166 * @param threadSynchronization The thread-synchronization implementation.
168 virtual void SetThreadSynchronization( ThreadSynchronizationInterface& threadSynchronization ) = 0;
171 * @brief Gets the surface type
173 virtual Dali::RenderSurfaceInterface::Type GetSurfaceType() = 0;
176 * @brief Makes the graphics context current
178 virtual void MakeContextCurrent() = 0;
181 * @brief Get whether the depth buffer is required
182 * @return TRUE if the depth buffer is required
184 virtual Integration::DepthBufferAvailable GetDepthBufferRequired() = 0;
187 * @brief Get whether the stencil buffer is required
188 * @return TRUE if the stencil buffer is required
190 virtual Integration::StencilBufferAvailable GetStencilBufferRequired() = 0;
194 void SetAdaptor( Dali::Internal::Adaptor::AdaptorInternalServices& adaptor )
199 void SetGraphicsInterface( Dali::Internal::Adaptor::GraphicsInterface& graphics )
201 mGraphics = &graphics;
204 void SetDisplayConnection( Dali::DisplayConnection& displayConnection )
206 mDisplayConnection = &displayConnection;
212 * @brief Undefined copy constructor. RenderSurface cannot be copied
214 RenderSurfaceInterface( const RenderSurfaceInterface& rhs );
217 * @brief Undefined assignment operator. RenderSurface cannot be copied
219 RenderSurfaceInterface& operator=( const RenderSurfaceInterface& rhs );
223 Dali::Internal::Adaptor::AdaptorInternalServices* mAdaptor;
224 Dali::Internal::Adaptor::GraphicsInterface* mGraphics;
225 Dali::DisplayConnection* mDisplayConnection;
229 Integration::DepthBufferAvailable mDepthBufferRequired; ///< Whether the depth buffer is required
230 Integration::StencilBufferAvailable mStencilBufferRequired; ///< Whether the stencil buffer is required
232 Vector4 mBackgroundColor; ///< The background color of the surface
237 #endif // DALI_RENDER_SURFACE_INTERFACE_H