2 * Copyright (c) 2019 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.
20 #include <dali/internal/graphics/gles/egl-implementation.h>
24 #include <dali/integration-api/debug.h>
25 #include <dali/public-api/common/dali-vector.h>
28 #include <dali/public-api/dali-adaptor-common.h>
29 #include <dali/internal/graphics/gles/gl-implementation.h>
30 #include <dali/internal/graphics/gles/egl-debug.h>
32 // EGL constants use C style casts
33 #pragma GCC diagnostic push
34 #pragma GCC diagnostic ignored "-Wold-style-cast"
38 const uint32_t CHECK_EXTENSION_NUMBER = 2;
39 const std::string EGL_KHR_SURFACELESS_CONTEXT = "EGL_KHR_surfaceless_context";
40 const std::string EGL_KHR_CREATE_CONTEXT = "EGL_KHR_create_context";
52 #define TEST_EGL_ERROR(lastCommand) \
54 EGLint err = eglGetError(); \
55 if (err != EGL_SUCCESS) \
57 DALI_LOG_ERROR("EGL error after %s\n", lastCommand); \
58 Egl::PrintError(err); \
59 DALI_ASSERT_ALWAYS(0 && "EGL error"); \
63 EglImplementation::EglImplementation( int multiSamplingLevel,
64 Integration::DepthBufferAvailable depthBufferRequired,
65 Integration::StencilBufferAvailable stencilBufferRequired )
67 mEglNativeDisplay( 0 ),
68 mEglNativeWindow( 0 ),
69 mCurrentEglNativePixmap( 0 ),
73 mCurrentEglSurface( 0 ),
74 mCurrentEglContext( EGL_NO_CONTEXT ),
75 mMultiSamplingLevel( multiSamplingLevel ),
77 mColorDepth( COLOR_DEPTH_24 ),
78 mGlesInitialized( false ),
79 mIsOwnSurface( true ),
81 mDepthBufferRequired( depthBufferRequired == Integration::DepthBufferAvailable::TRUE ),
82 mStencilBufferRequired( stencilBufferRequired == Integration::StencilBufferAvailable::TRUE ),
83 mIsSurfacelessContextSupported( false ),
84 mIsKhrCreateContextSupported( false )
88 EglImplementation::~EglImplementation()
93 bool EglImplementation::InitializeGles( EGLNativeDisplayType display, bool isOwnSurface )
95 if ( !mGlesInitialized )
97 mEglNativeDisplay = display;
99 //@todo see if we can just EGL_DEFAULT_DISPLAY instead
100 mEglDisplay = eglGetDisplay(mEglNativeDisplay);
101 EGLint error = eglGetError();
103 if( mEglDisplay == NULL && error != EGL_SUCCESS )
105 throw Dali::DaliException( "", "OpenGL ES is not supported");
108 EGLint majorVersion = 0;
109 EGLint minorVersion = 0;
110 if ( !eglInitialize( mEglDisplay, &majorVersion, &minorVersion ) )
114 eglBindAPI(EGL_OPENGL_ES_API);
116 mGlesInitialized = true;
117 mIsOwnSurface = isOwnSurface;
120 // Query EGL extensions to check whether surfaceless context is supported
121 const char* const extensionStr = eglQueryString( mEglDisplay, EGL_EXTENSIONS );
122 std::istringstream stream( extensionStr );
123 std::string currentExtension;
124 uint32_t extensionCheckCount = 0;
125 while( std::getline( stream, currentExtension, ' ' ) && extensionCheckCount < CHECK_EXTENSION_NUMBER )
127 if( currentExtension == EGL_KHR_SURFACELESS_CONTEXT )
129 mIsSurfacelessContextSupported = true;
130 extensionCheckCount++;
132 if( currentExtension == EGL_KHR_CREATE_CONTEXT )
134 mIsKhrCreateContextSupported = true;
135 extensionCheckCount++;
139 // We want to display this information all the time, so use the LogMessage directly
140 Integration::Log::LogMessage(Integration::Log::DebugInfo, "EGL Information\n"
145 eglQueryString( mEglDisplay, EGL_VENDOR ),
146 eglQueryString( mEglDisplay, EGL_VERSION ),
147 eglQueryString( mEglDisplay, EGL_CLIENT_APIS ),
150 return mGlesInitialized;
153 bool EglImplementation::CreateContext()
155 // make sure a context isn't created twice
156 DALI_ASSERT_ALWAYS( (mEglContext == 0) && "EGL context recreated" );
158 mEglContext = eglCreateContext(mEglDisplay, mEglConfig, NULL, &(mContextAttribs[0]));
159 if ( eglGetError() != EGL_SUCCESS )
161 if( mGlesVersion >= 30 )
163 eglDestroySurface( mEglDisplay, mEglContext );
166 DALI_LOG_ERROR("Fail to use OpenGL es 3.0. Retrying to use OpenGL es 2.0.");
170 TEST_EGL_ERROR("eglCreateContext render thread");
172 DALI_ASSERT_ALWAYS( EGL_NO_CONTEXT != mEglContext && "EGL context not created" );
174 DALI_LOG_INFO(Debug::Filter::gShader, Debug::General, "*** GL_VENDOR : %s ***\n", glGetString(GL_VENDOR));
175 DALI_LOG_INFO(Debug::Filter::gShader, Debug::General, "*** GL_RENDERER : %s ***\n", glGetString(GL_RENDERER));
176 DALI_LOG_INFO(Debug::Filter::gShader, Debug::General, "*** GL_VERSION : %s ***\n", glGetString(GL_VERSION));
177 DALI_LOG_INFO(Debug::Filter::gShader, Debug::General, "*** GL_SHADING_LANGUAGE_VERSION : %s***\n", glGetString(GL_SHADING_LANGUAGE_VERSION));
178 DALI_LOG_INFO(Debug::Filter::gShader, Debug::General, "*** Supported Extensions ***\n%s\n\n", glGetString(GL_EXTENSIONS));
183 bool EglImplementation::CreateWindowContext( EGLContext& eglContext )
185 // make sure a context isn't created twice
186 DALI_ASSERT_ALWAYS( (eglContext == 0) && "EGL context recreated" );
188 eglContext = eglCreateContext(mEglDisplay, mEglConfig, mEglContext, &(mContextAttribs[0]));
189 TEST_EGL_ERROR("eglCreateContext render thread");
191 DALI_ASSERT_ALWAYS( EGL_NO_CONTEXT != eglContext && "EGL context not created" );
193 DALI_LOG_INFO(Debug::Filter::gShader, Debug::General, "*** GL_VENDOR : %s ***\n", glGetString(GL_VENDOR));
194 DALI_LOG_INFO(Debug::Filter::gShader, Debug::General, "*** GL_RENDERER : %s ***\n", glGetString(GL_RENDERER));
195 DALI_LOG_INFO(Debug::Filter::gShader, Debug::General, "*** GL_VERSION : %s ***\n", glGetString(GL_VERSION));
196 DALI_LOG_INFO(Debug::Filter::gShader, Debug::General, "*** GL_SHADING_LANGUAGE_VERSION : %s***\n", glGetString(GL_SHADING_LANGUAGE_VERSION));
197 DALI_LOG_INFO(Debug::Filter::gShader, Debug::General, "*** Supported Extensions ***\n%s\n\n", glGetString(GL_EXTENSIONS));
199 mEglWindowContexts.push_back( eglContext );
204 void EglImplementation::DestroyContext( EGLContext& eglContext )
206 DALI_ASSERT_ALWAYS( mEglContext && "no EGL context" );
208 eglDestroyContext( mEglDisplay, eglContext );
212 void EglImplementation::DestroySurface( EGLSurface& eglSurface )
214 if(mIsOwnSurface && eglSurface)
216 // Make context null to prevent crash in driver side
218 eglDestroySurface( mEglDisplay, eglSurface );
223 void EglImplementation::MakeContextCurrent( EGLSurface eglSurface, EGLContext eglContext )
225 if (mCurrentEglContext == eglContext)
230 mCurrentEglSurface = eglSurface;
234 if( mCurrentEglContext != EGL_NO_CONTEXT )
239 eglMakeCurrent( mEglDisplay, eglSurface, eglSurface, eglContext );
241 mCurrentEglContext = eglContext;
244 EGLint error = eglGetError();
246 if ( error != EGL_SUCCESS )
248 Egl::PrintError(error);
250 DALI_ASSERT_ALWAYS(false && "MakeContextCurrent failed!");
254 void EglImplementation::MakeCurrent( EGLNativePixmapType pixmap, EGLSurface eglSurface )
256 if (mCurrentEglContext == mEglContext)
261 mCurrentEglNativePixmap = pixmap;
262 mCurrentEglSurface = eglSurface;
266 if( mCurrentEglContext != EGL_NO_CONTEXT )
271 eglMakeCurrent( mEglDisplay, eglSurface, eglSurface, mEglContext );
273 mCurrentEglContext = mEglContext;
276 EGLint error = eglGetError();
278 if ( error != EGL_SUCCESS )
280 Egl::PrintError(error);
282 DALI_ASSERT_ALWAYS(false && "MakeCurrent failed!");
286 void EglImplementation::MakeContextNull()
288 // clear the current context
289 eglMakeCurrent( mEglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT );
290 mCurrentEglContext = EGL_NO_CONTEXT;
293 void EglImplementation::TerminateGles()
295 if ( mGlesInitialized )
297 // Make context null to prevent crash in driver side
300 for ( auto eglSurface : mEglWindowSurfaces )
302 if(mIsOwnSurface && eglSurface)
304 eglDestroySurface(mEglDisplay, eglSurface);
307 eglDestroyContext(mEglDisplay, mEglContext);
308 for ( auto eglContext : mEglWindowContexts )
310 eglDestroyContext(mEglDisplay, eglContext);
313 eglTerminate(mEglDisplay);
318 mCurrentEglSurface = NULL;
319 mCurrentEglContext = EGL_NO_CONTEXT;
321 mGlesInitialized = false;
325 bool EglImplementation::IsGlesInitialized() const
327 return mGlesInitialized;
330 void EglImplementation::SwapBuffers( EGLSurface& eglSurface )
332 if ( eglSurface != EGL_NO_SURFACE ) // skip if using surfaceless context
334 eglSwapBuffers( mEglDisplay, eglSurface );
338 void EglImplementation::CopyBuffers( EGLSurface& eglSurface )
340 eglCopyBuffers( mEglDisplay, eglSurface, mCurrentEglNativePixmap );
343 void EglImplementation::WaitGL()
348 bool EglImplementation::ChooseConfig( bool isWindowType, ColorDepth depth )
350 if(mEglConfig && isWindowType == mIsWindow && mColorDepth == depth)
356 mIsWindow = isWindowType;
359 Vector<EGLint> configAttribs;
360 configAttribs.Reserve(31);
364 configAttribs.PushBack( EGL_SURFACE_TYPE );
365 configAttribs.PushBack( EGL_WINDOW_BIT );
369 configAttribs.PushBack( EGL_SURFACE_TYPE );
370 configAttribs.PushBack( EGL_PIXMAP_BIT );
373 configAttribs.PushBack( EGL_RENDERABLE_TYPE );
375 if( mGlesVersion >= 30 )
377 configAttribs.PushBack( EGL_OPENGL_ES3_BIT_KHR );
381 configAttribs.PushBack( EGL_OPENGL_ES2_BIT );
384 // TODO: enable this flag when it becomes supported
385 // configAttribs.PushBack( EGL_CONTEXT_FLAGS_KHR );
386 // configAttribs.PushBack( EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR );
388 configAttribs.PushBack( EGL_RED_SIZE );
389 configAttribs.PushBack( 8 );
390 configAttribs.PushBack( EGL_GREEN_SIZE );
391 configAttribs.PushBack( 8 );
392 configAttribs.PushBack( EGL_BLUE_SIZE );
393 configAttribs.PushBack( 8 );
395 // In the previous code, there was a branch for ARM.
396 // If there is an issue in only ARM, we need to check here again.
397 configAttribs.PushBack( EGL_ALPHA_SIZE );
398 configAttribs.PushBack( 8 );
400 configAttribs.PushBack( EGL_DEPTH_SIZE );
401 configAttribs.PushBack( mDepthBufferRequired ? 24 : 0 );
402 configAttribs.PushBack( EGL_STENCIL_SIZE );
403 configAttribs.PushBack( mStencilBufferRequired ? 8 : 0 );
405 #ifndef DALI_PROFILE_UBUNTU
406 if( mMultiSamplingLevel != EGL_DONT_CARE )
408 configAttribs.PushBack( EGL_SAMPLES );
409 configAttribs.PushBack( mMultiSamplingLevel );
410 configAttribs.PushBack( EGL_SAMPLE_BUFFERS );
411 configAttribs.PushBack( 1 );
413 #endif // DALI_PROFILE_UBUNTU
414 configAttribs.PushBack( EGL_NONE );
416 // Ensure number of configs is set to 1 as on some drivers,
417 // eglChooseConfig succeeds but does not actually create a proper configuration.
418 if ( ( eglChooseConfig( mEglDisplay, &(configAttribs[0]), &mEglConfig, 1, &numConfigs ) != EGL_TRUE ) ||
419 ( numConfigs != 1 ) )
421 if( mGlesVersion >= 30 )
424 DALI_LOG_ERROR("Fail to use OpenGL es 3.0. Retrying to use OpenGL es 2.0.");
428 if ( numConfigs != 1 )
430 DALI_LOG_ERROR("No configurations found.\n");
432 TEST_EGL_ERROR("eglChooseConfig");
435 EGLint error = eglGetError();
438 case EGL_BAD_DISPLAY:
440 DALI_LOG_ERROR("Display is not an EGL display connection\n");
443 case EGL_BAD_ATTRIBUTE:
445 DALI_LOG_ERROR("The parameter configAttribs contains an invalid frame buffer configuration attribute or an attribute value that is unrecognized or out of range\n");
448 case EGL_NOT_INITIALIZED:
450 DALI_LOG_ERROR("Display has not been initialized\n");
453 case EGL_BAD_PARAMETER:
455 DALI_LOG_ERROR("The parameter numConfig is NULL\n");
460 DALI_LOG_ERROR("Unknown error.\n");
463 DALI_ASSERT_ALWAYS(false && "eglChooseConfig failed!");
466 Integration::Log::LogMessage(Integration::Log::DebugInfo, "Using OpenGL es %d.%d.\n", mGlesVersion / 10, mGlesVersion % 10 );
468 mContextAttribs.Clear();
469 if( mIsKhrCreateContextSupported )
471 mContextAttribs.Reserve(5);
472 mContextAttribs.PushBack( EGL_CONTEXT_MAJOR_VERSION_KHR );
473 mContextAttribs.PushBack( mGlesVersion / 10 );
474 mContextAttribs.PushBack( EGL_CONTEXT_MINOR_VERSION_KHR );
475 mContextAttribs.PushBack( mGlesVersion % 10 );
479 mContextAttribs.Reserve(3);
480 mContextAttribs.PushBack( EGL_CONTEXT_CLIENT_VERSION );
481 mContextAttribs.PushBack( mGlesVersion / 10 );
483 mContextAttribs.PushBack( EGL_NONE );
488 EGLSurface EglImplementation::CreateSurfaceWindow( EGLNativeWindowType window, ColorDepth depth )
490 mEglNativeWindow = window;
495 ChooseConfig(mIsWindow, mColorDepth);
497 mCurrentEglSurface = eglCreateWindowSurface( mEglDisplay, mEglConfig, mEglNativeWindow, NULL );
498 TEST_EGL_ERROR("eglCreateWindowSurface");
500 DALI_ASSERT_ALWAYS( mCurrentEglSurface && "Create window surface failed" );
502 return mCurrentEglSurface;
505 EGLSurface EglImplementation::CreateSurfacePixmap( EGLNativePixmapType pixmap, ColorDepth depth )
507 mCurrentEglNativePixmap = pixmap;
512 ChooseConfig(mIsWindow, mColorDepth);
514 mCurrentEglSurface = eglCreatePixmapSurface( mEglDisplay, mEglConfig, mCurrentEglNativePixmap, NULL );
515 TEST_EGL_ERROR("eglCreatePixmapSurface");
517 DALI_ASSERT_ALWAYS( mCurrentEglSurface && "Create pixmap surface failed" );
519 return mCurrentEglSurface;
522 bool EglImplementation::ReplaceSurfaceWindow( EGLNativeWindowType window, EGLSurface& eglSurface, EGLContext& eglContext )
524 bool contextLost = false;
526 // display connection has not changed, then we can just create a new surface
527 // the surface is bound to the context, so set the context to null
530 // destroy the surface
531 DestroySurface( eglSurface );
533 // create the EGL surface
534 EGLSurface newEglSurface = CreateSurfaceWindow( window, mColorDepth );
536 // set the context to be current with the new surface
537 MakeContextCurrent( newEglSurface, eglContext );
542 bool EglImplementation::ReplaceSurfacePixmap( EGLNativePixmapType pixmap, EGLSurface& eglSurface )
544 bool contextLost = false;
546 // display connection has not changed, then we can just create a new surface
547 // create the EGL surface
548 eglSurface = CreateSurfacePixmap( pixmap, mColorDepth );
550 // set the eglSurface to be current
551 MakeCurrent( pixmap, eglSurface );
556 void EglImplementation::SetGlesVersion( const int32_t glesVersion )
558 mGlesVersion = glesVersion;
561 EGLDisplay EglImplementation::GetDisplay() const
566 EGLContext EglImplementation::GetContext() const
571 int32_t EglImplementation::GetGlesVersion() const
576 bool EglImplementation::IsSurfacelessContextSupported() const
578 return mIsSurfacelessContextSupported;
581 } // namespace Adaptor
583 } // namespace Internal
587 #pragma GCC diagnostic pop