1 #ifndef DALI_INTERNAL_EGL_IMPLEMENTATION_H
2 #define DALI_INTERNAL_EGL_IMPLEMENTATION_H
5 * Copyright (c) 2019 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.
23 #include <EGL/eglext.h>
24 #include <dali/public-api/common/dali-vector.h>
25 #include <dali/public-api/common/vector-wrapper.h>
26 #include <dali/integration-api/core-enumerations.h>
29 #include <dali/integration-api/adaptors/egl-interface.h>
39 * EglImplementation class provides an EGL implementation.
41 class EglImplementation : public EglInterface
47 * @param[in] multiSamplingLevel The Multi-sampling level required
48 * @param[in] depthBufferRequired Whether the depth buffer is required
49 * @param[in] stencilBufferRequired Whether the stencil buffer is required
51 EglImplementation( int multiSamplingLevel,
52 Integration::DepthBufferAvailable depthBufferRequired,
53 Integration::StencilBufferAvailable stencilBufferRequired );
58 virtual ~EglImplementation();
63 * (Called from ECoreX::RenderSurface, not RenderThread, so not in i/f, hence, not virtual)
65 * @param display The display
66 * @param isOwnSurface whether the surface is own or not
67 * @return true on success, false on failure
69 bool InitializeGles( EGLNativeDisplayType display, bool isOwnSurface = true );
72 * Create the OpenGL context for the shared resource.
73 * @return true if successful
75 virtual bool CreateContext();
78 * Create the OpenGL context for the window.
79 * @return true if successful
81 bool CreateWindowContext( EGLContext& mEglContext );
84 * Destroy the OpenGL context.
86 void DestroyContext( EGLContext& eglContext );
89 * Destroy the OpenGL surface.
91 void DestroySurface( EGLSurface& eglSurface );
94 * Make the OpenGL context current
96 virtual void MakeContextCurrent( EGLSurface eglSurface, EGLContext eglContext );
99 * clear the OpenGL context
101 void MakeContextNull();
104 * @brief Make the OpenGL surface current
106 * @param pixmap The pixmap to replace the current surface
107 * @param eglSurface The eglSurface to replace the current OpenGL surface.
109 void MakeCurrent( EGLNativePixmapType pixmap, EGLSurface eglSurface );
114 virtual void TerminateGles();
117 * Checks if GL is initialised
118 * @return true if it is
120 bool IsGlesInitialized() const;
123 * Performs an OpenGL swap buffers command
125 virtual void SwapBuffers( EGLSurface& eglSurface );
128 * Performs an OpenGL copy buffers command
130 virtual void CopyBuffers( EGLSurface& eglSurface );
133 * Performs an EGL wait GL command
135 virtual void WaitGL();
138 * Choose config of egl
139 * @param isWindowType whether the config for window or pixmap
140 * @param colorDepth Bit per pixel value (ex. 32 or 24)
141 * @return true if the eglChooseConfig is succeed.
143 bool ChooseConfig( bool isWindowType, ColorDepth depth );
146 * Create an OpenGL surface using a window
147 * @param window The window to create the surface on
148 * @param colorDepth Bit per pixel value (ex. 32 or 24)
149 * @return Handle to an on-screen EGL window surface (the requester has an ownership of this egl surface)
151 EGLSurface CreateSurfaceWindow( EGLNativeWindowType window, ColorDepth depth );
154 * Create the OpenGL surface using a pixmap
155 * @param pixmap The pixmap to create the surface on
156 * @param colorDepth Bit per pixel value (ex. 32 or 24)
157 * @return Handle to an off-screen EGL pixmap surface (the requester has an ownership of this egl surface)
159 EGLSurface CreateSurfacePixmap( EGLNativePixmapType pixmap, ColorDepth depth );
162 * Replaces the render surface
163 * @param[in] window, the window to create the new surface on
164 * @return true if the context was lost due to a change in display
165 * between old surface and new surface
167 bool ReplaceSurfaceWindow( EGLNativeWindowType window, EGLSurface& eglSurface, EGLContext& eglContext );
170 * Replaces the render surface
171 * @param[in] pixmap, the pixmap to replace the new surface on
172 * @param[out] eglSurface, the eglSurface is created using a pixmap.
173 * @return true if the context was lost due to a change in x-display
174 * between old surface and new surface
176 bool ReplaceSurfacePixmap( EGLNativePixmapType pixmap, EGLSurface& eglSurface );
181 void SetGlesVersion( const int32_t glesVersion );
184 * Sets Whether the frame is the first after Resume.
186 void SetFirstFrameAfterResume();
189 * returns the display with which this object was initialized
190 * @return the EGL Display.
192 EGLDisplay GetDisplay() const;
195 * Returns the EGL context
196 * @return the EGL context.
198 EGLContext GetContext() const;
201 * Returns the gles version
202 * @return the gles version
204 int32_t GetGlesVersion() const;
207 * Returns whether the surfaceless context is supported
208 * @return true if the surfaceless context is supported
210 bool IsSurfacelessContextSupported() const;
213 * @brief Wait until all rendering calls for the currently context are executed
219 Vector<EGLint> mContextAttribs;
221 EGLNativeDisplayType mEglNativeDisplay;
223 EGLNativeWindowType mEglNativeWindow;
225 EGLNativePixmapType mCurrentEglNativePixmap;
227 EGLDisplay mEglDisplay;
228 EGLConfig mEglConfig;
229 EGLContext mEglContext; ///< The resource context holding assets such as textures to be shared
231 typedef std::vector<EGLContext> EglWindowContextContainer;
232 EglWindowContextContainer mEglWindowContexts; ///< The EGL context for the window
234 EGLSurface mCurrentEglSurface;
235 EGLContext mCurrentEglContext;
237 typedef std::vector<EGLSurface> EglWindowSurfaceContainer;
238 EglWindowSurfaceContainer mEglWindowSurfaces; ///< The EGL surface for the window
240 int32_t mMultiSamplingLevel;
241 int32_t mGlesVersion;
243 ColorDepth mColorDepth;
245 bool mGlesInitialized;
248 bool mDepthBufferRequired;
249 bool mStencilBufferRequired;
250 bool mIsSurfacelessContextSupported;
251 bool mIsKhrCreateContextSupported;
253 uint32_t mSwapBufferCountAfterResume;
256 } // namespace Adaptor
258 } // namespace Internal
262 #endif // DALI_INTERNAL_EGL_IMPLEMENTATION_H