2 * Copyright (c) 2015 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 "render-helper.h"
22 #include <dali/integration-api/debug.h>
25 #include <base/interfaces/adaptor-internal-services.h>
26 #include <base/display-connection.h>
37 RenderHelper::RenderHelper( AdaptorInternalServices& adaptorInterfaces )
38 : mGLES( adaptorInterfaces.GetGlesInterface() ),
39 mEglFactory( &adaptorInterfaces.GetEGLFactoryInterface()),
41 mSurfaceReplaced( false )
43 // set the initial values before render thread starts
44 mSurface = adaptorInterfaces.GetRenderSurfaceInterface();
46 mDisplayConnection = Dali::DisplayConnection::New();
49 RenderHelper::~RenderHelper()
51 if (mDisplayConnection)
53 delete mDisplayConnection;
54 mDisplayConnection = NULL;
57 mEglFactory->Destroy();
60 void RenderHelper::Start()
64 mSurface->StartRender();
68 void RenderHelper::Stop()
72 // Tell surface we have stopped rendering
73 mSurface->StopRender();
75 // The surface will be destroyed soon; this pointer will become invalid
80 void RenderHelper::ConsumeEvents()
82 mDisplayConnection->ConsumeEvents();
85 void RenderHelper::InitializeEgl()
87 mEGL = mEglFactory->Create();
89 DALI_ASSERT_ALWAYS( mSurface && "NULL surface" );
91 // Initialize EGL & OpenGL
92 mDisplayConnection->InitializeEgl( *mEGL );
93 mSurface->InitializeEgl( *mEGL );
95 // create the OpenGL context
96 mEGL->CreateContext();
98 // create the OpenGL surface
99 mSurface->CreateEglSurface(*mEGL);
102 mEGL->MakeContextCurrent();
105 void RenderHelper::ReplaceSurface( RenderSurface* newSurface )
107 mSurface->DestroyEglSurface(*mEGL);
109 // This is designed for replacing pixmap surfaces, but should work for window as well
110 // we need to delete the egl surface and renderable (pixmap / window)
111 // Then create a new pixmap/window and new egl surface
112 // If the new surface has a different display connection, then the context will be lost
113 DALI_ASSERT_ALWAYS(newSurface && "NULL surface");
115 mDisplayConnection->InitializeEgl(*mEGL);
117 newSurface->ReplaceEGLSurface(*mEGL);
119 // use the new surface from now on
120 mSurface = newSurface;
121 mSurfaceReplaced = true;
124 void RenderHelper::ShutdownEgl()
128 // give a chance to destroy the OpenGL surface that created externally
129 mSurface->DestroyEglSurface( *mEGL );
132 // delete the GL context / egl surface
133 mEGL->TerminateGles();
136 bool RenderHelper::PreRender()
140 mSurface->PreRender( *mEGL, mGLES );
146 void RenderHelper::PostRender()
148 // Inform the gl implementation that rendering has finished before informing the surface
153 // Inform the surface that rendering this frame has finished.
154 mSurface->PostRender( *mEGL, mGLES, mDisplayConnection, mSurfaceReplaced );
156 mSurfaceReplaced = false;
159 } // namespace Adaptor
161 } // namespace Internal