2 * Copyright (c) 2014 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 <gl/egl-implementation.h>
23 #include <dali/integration-api/debug.h>
24 #include <dali/public-api/common/dali-common.h>
25 #include <dali/public-api/common/dali-vector.h>
28 #include <ecore-wl-render-surface.h>
39 #define TEST_EGL_ERROR(lastCommand) \
41 EGLint err = eglGetError(); \
42 if (err != EGL_SUCCESS) \
44 DALI_LOG_ERROR("EGL error after %s code=%d\n", lastCommand,err); \
45 DALI_ASSERT_ALWAYS(0 && "EGL error"); \
49 EglImplementation::EglImplementation()
50 : mEglNativeDisplay(0),
57 mGlesInitialized(false),
60 mContextCurrent(false),
62 mColorDepth(COLOR_DEPTH_24)
66 EglImplementation::~EglImplementation()
71 bool EglImplementation::InitializeGles( EGLNativeDisplayType display, bool isOwnSurface )
73 if ( !mGlesInitialized )
75 mEglNativeDisplay = display;
77 //@todo see if we can just EGL_DEFAULT_DISPLAY instead
78 mEglDisplay = eglGetDisplay(mEglNativeDisplay);
80 EGLint majorVersion = 0;
81 EGLint minorVersion = 0;
82 if ( !eglInitialize( mEglDisplay, &majorVersion, &minorVersion ) )
86 eglBindAPI(EGL_OPENGL_ES_API);
88 mContextAttribs.Clear();
90 #if DALI_GLES_VERSION >= 30
92 mContextAttribs.Reserve(5);
93 mContextAttribs.PushBack( EGL_CONTEXT_MAJOR_VERSION_KHR );
94 mContextAttribs.PushBack( 3 );
95 mContextAttribs.PushBack( EGL_CONTEXT_MINOR_VERSION_KHR );
96 mContextAttribs.PushBack( 0 );
98 #else // DALI_GLES_VERSION >= 30
100 mContextAttribs.Reserve(3);
101 mContextAttribs.PushBack( EGL_CONTEXT_CLIENT_VERSION );
102 mContextAttribs.PushBack( 2 );
104 #endif // DALI_GLES_VERSION >= 30
106 mContextAttribs.PushBack( EGL_NONE );
108 mGlesInitialized = true;
109 mIsOwnSurface = isOwnSurface;
112 return mGlesInitialized;
115 bool EglImplementation::CreateContext()
117 // make sure a context isn't created twice
118 DALI_ASSERT_ALWAYS( (mEglContext == 0) && "EGL context recreated" );
120 mEglContext = eglCreateContext(mEglDisplay, mEglConfig, NULL, &(mContextAttribs[0]));
121 TEST_EGL_ERROR("eglCreateContext render thread");
123 DALI_ASSERT_ALWAYS( EGL_NO_CONTEXT != mEglContext && "EGL context not created" );
128 void EglImplementation::DestroyContext()
130 DALI_ASSERT_ALWAYS( mEglContext && "no EGL context" );
132 eglDestroyContext( mEglDisplay, mEglContext );
136 void EglImplementation::DestroySurface()
138 if(mIsOwnSurface && mEglSurface)
140 eglDestroySurface( mEglDisplay, mEglSurface );
145 void EglImplementation::MakeContextCurrent()
147 mContextCurrent = true;
151 eglMakeCurrent( mEglDisplay, mEglSurface, mEglSurface, mEglContext );
154 EGLint error = eglGetError();
156 if ( error != EGL_SUCCESS )
160 case EGL_BAD_DISPLAY:
162 DALI_LOG_ERROR("EGL_BAD_DISPLAY : Display is not an EGL display connection");
165 case EGL_NOT_INITIALIZED:
167 DALI_LOG_ERROR("EGL_NOT_INITIALIZED : Display has not been initialized");
170 case EGL_BAD_SURFACE:
172 DALI_LOG_ERROR("EGL_BAD_SURFACE : Draw or read is not an EGL surface");
175 case EGL_BAD_CONTEXT:
177 DALI_LOG_ERROR("EGL_BAD_CONTEXT : Context is not an EGL rendering context");
182 DALI_LOG_ERROR("EGL_BAD_MATCH : Draw or read are not compatible with context, or if context is set to EGL_NO_CONTEXT and draw or read are not set to EGL_NO_SURFACE, or if draw or read are set to EGL_NO_SURFACE and context is not set to EGL_NO_CONTEXT");
187 DALI_LOG_ERROR("EGL_BAD_ACCESS : Context is current to some other thread");
190 case EGL_BAD_NATIVE_PIXMAP:
192 DALI_LOG_ERROR("EGL_BAD_NATIVE_PIXMAP : A native pixmap underlying either draw or read is no longer valid.");
195 case EGL_BAD_NATIVE_WINDOW:
197 DALI_LOG_ERROR("EGL_BAD_NATIVE_WINDOW : A native window underlying either draw or read is no longer valid.");
200 case EGL_BAD_CURRENT_SURFACE:
202 DALI_LOG_ERROR("EGL_BAD_CURRENT_SURFACE : The previous context has unflushed commands and the previous surface is no longer valid.");
207 DALI_LOG_ERROR("EGL_BAD_ALLOC : Allocation of ancillary buffers for draw or read were delayed until eglMakeCurrent is called, and there are not enough resources to allocate them");
210 case EGL_CONTEXT_LOST:
212 DALI_LOG_ERROR("EGL_CONTEXT_LOST : If a power management event has occurred. The application must destroy all contexts and reinitialise OpenGL ES state and objects to continue rendering");
217 DALI_LOG_ERROR("Unknown error");
221 DALI_ASSERT_ALWAYS(false && "MakeContextCurrent failed!");
224 // We want to display this information all the time, so use the LogMessage directly
225 Integration::Log::LogMessage(Integration::Log::DebugInfo, "EGL Information\n"
230 eglQueryString(mEglDisplay, EGL_VENDOR),
231 eglQueryString(mEglDisplay, EGL_VERSION),
232 eglQueryString(mEglDisplay, EGL_CLIENT_APIS),
233 eglQueryString(mEglDisplay, EGL_EXTENSIONS));
237 SetRefreshSync( mSyncMode );
241 void EglImplementation::MakeContextNull()
243 mContextCurrent = false;
244 // clear the current context
245 eglMakeCurrent( mEglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT );
248 void EglImplementation::TerminateGles()
250 if ( mGlesInitialized )
252 // in latest Mali DDK (r2p3 ~ r3p0 in April, 2012),
253 // MakeContextNull should be called before eglDestroy surface
254 // to prevent crash in _mali_surface_destroy_callback
257 if(mIsOwnSurface && mEglSurface)
259 eglDestroySurface(mEglDisplay, mEglSurface);
261 eglDestroyContext(mEglDisplay, mEglContext);
263 eglTerminate(mEglDisplay);
270 mGlesInitialized = false;
274 bool EglImplementation::IsGlesInitialized() const
276 return mGlesInitialized;
279 bool EglImplementation::SetRefreshSync( SyncMode mode )
281 if ( mIsWindow == false )
287 // eglSwapInterval specifies the minimum number of video frame periods
288 // per buffer swap for the window associated with the current context.
290 if ( !mContextCurrent )
295 EGLBoolean ok = eglSwapInterval( mEglDisplay, mode );
298 TEST_EGL_ERROR("eglSwapInterval");
305 void EglImplementation::SwapBuffers()
307 eglSwapBuffers( mEglDisplay, mEglSurface );
310 void EglImplementation::CopyBuffers()
312 eglCopyBuffers( mEglDisplay, mEglSurface, mEglNativePixmap );
315 void EglImplementation::WaitGL()
320 void EglImplementation::ChooseConfig( bool isWindowType, ColorDepth depth )
322 if(mEglConfig && isWindowType == mIsWindow && mColorDepth == depth)
327 mIsWindow = isWindowType;
330 Vector<EGLint> configAttribs;
331 configAttribs.Reserve(31);
335 configAttribs.PushBack( EGL_SURFACE_TYPE );
336 configAttribs.PushBack( EGL_WINDOW_BIT );
340 configAttribs.PushBack( EGL_SURFACE_TYPE );
341 configAttribs.PushBack( EGL_PIXMAP_BIT );
344 configAttribs.PushBack( EGL_RENDERABLE_TYPE );
346 #if DALI_GLES_VERSION >= 30
349 configAttribs.PushBack( EGL_OPENGL_ES3_BIT_KHR );
351 // There is a bug in the desktop emulator
352 // Requesting for ES3 causes eglCreateContext even though it allows to ask
353 // for a configuration that supports GLES 3.0
354 configAttribs.PushBack( EGL_OPENGL_ES2_BIT );
357 #else // DALI_GLES_VERSION >= 30
359 configAttribs.PushBack( EGL_OPENGL_ES2_BIT );
361 #endif //DALI_GLES_VERSION >= 30
363 #if DALI_GLES_VERSION >= 30
364 // TODO: enable this flag when it becomes supported
365 // configAttribs.PushBack( EGL_CONTEXT_FLAGS_KHR );
366 // configAttribs.PushBack( EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR );
367 #endif //DALI_GLES_VERSION >= 30
369 configAttribs.PushBack( EGL_RED_SIZE );
370 configAttribs.PushBack( 8 );
371 configAttribs.PushBack( EGL_GREEN_SIZE );
372 configAttribs.PushBack( 8 );
373 configAttribs.PushBack( EGL_BLUE_SIZE );
374 configAttribs.PushBack( 8 );
376 configAttribs.PushBack( EGL_ALPHA_SIZE );
378 configAttribs.PushBack( (depth == COLOR_DEPTH_32) ? 8 : 0 );
380 // There is a bug in the desktop emulator
381 // setting EGL_ALPHA_SIZE to 8 results in eglChooseConfig failing
382 configAttribs.PushBack( 0 );
385 configAttribs.PushBack( EGL_DEPTH_SIZE );
386 configAttribs.PushBack( 24 );
387 configAttribs.PushBack( EGL_STENCIL_SIZE );
388 configAttribs.PushBack( 8 );
389 configAttribs.PushBack( EGL_SAMPLES );
390 configAttribs.PushBack( 4 );
391 configAttribs.PushBack( EGL_SAMPLE_BUFFERS );
392 configAttribs.PushBack( 1 );
393 configAttribs.PushBack( EGL_NONE );
395 if ( eglChooseConfig( mEglDisplay, &(configAttribs[0]), &mEglConfig, 1, &numConfigs ) != EGL_TRUE )
397 EGLint error = eglGetError();
400 case EGL_BAD_DISPLAY:
402 DALI_LOG_ERROR("Display is not an EGL display connection");
405 case EGL_BAD_ATTRIBUTE:
407 DALI_LOG_ERROR("The parameter confirAttribs contains an invalid frame buffer configuration attribute or an attribute value that is unrecognized or out of range");
410 case EGL_NOT_INITIALIZED:
412 DALI_LOG_ERROR("Display has not been initialized");
415 case EGL_BAD_PARAMETER:
417 DALI_LOG_ERROR("The parameter numConfig is NULL");
422 DALI_LOG_ERROR("Unknown error");
425 DALI_ASSERT_ALWAYS(false && "eglChooseConfig failed!");
428 if ( numConfigs != 1 )
430 DALI_LOG_ERROR("No configurations found.");
432 TEST_EGL_ERROR("eglChooseConfig");
437 void EglImplementation::CreateSurfaceWindow( EGLNativeWindowType window, ColorDepth depth )
439 DALI_ASSERT_ALWAYS( ( mEglSurface == 0 ) && "EGL surface already exists" );
441 mEglNativeWindow = window;
446 ChooseConfig(mIsWindow, mColorDepth);
448 mEglSurface = eglCreateWindowSurface( mEglDisplay, mEglConfig, mEglNativeWindow, NULL );
449 TEST_EGL_ERROR("eglCreateWindowSurface");
451 DALI_ASSERT_ALWAYS( mEglSurface && "Create window surface failed" );
454 void EglImplementation::CreateSurfacePixmap( EGLNativePixmapType pixmap, ColorDepth depth )
456 DALI_ASSERT_ALWAYS( mEglSurface == 0 && "Cannot create more than one instance of surface pixmap" );
458 mEglNativePixmap = pixmap;
463 ChooseConfig(mIsWindow, mColorDepth);
465 mEglSurface = eglCreatePixmapSurface( mEglDisplay, mEglConfig, mEglNativePixmap, NULL );
466 TEST_EGL_ERROR("eglCreatePixmapSurface");
468 DALI_ASSERT_ALWAYS( mEglSurface && "Create pixmap surface failed" );
471 bool EglImplementation::ReplaceSurfaceWindow( EGLNativeWindowType window, EGLNativeDisplayType display )
473 bool contextLost = false;
475 // the surface is bound to the context, so set the context to null
478 // destroy the surface
481 // If the display has not changed, then we can just create a new surface
482 if ( display == mEglNativeDisplay )
484 // create the EGL surface
485 CreateSurfaceWindow( window, mColorDepth );
487 // set the context to be current with the new surface
488 MakeContextCurrent();
490 else // the display has changed, we need to start egl with a new x-connection
492 // Note! this code path is untested
494 // this will release all EGL specific resources
495 eglTerminate( mEglDisplay );
497 mGlesInitialized = false;
499 // let the adaptor know that all resources have been lost
502 // re-initialise GLES with the new connection
503 InitializeGles( display );
505 // create the EGL surface
506 CreateSurfaceWindow( window, mColorDepth );
508 // create the OpenGL context
512 MakeContextCurrent();
518 bool EglImplementation::ReplaceSurfacePixmap( EGLNativePixmapType pixmap, EGLNativeDisplayType display )
520 bool contextLost = false;
522 // the surface is bound to the context, so set the context to null
525 // destroy the surface
528 // If the display has not changed, then we can just create a new surface
529 if ( display == mEglNativeDisplay )
531 // create the EGL surface
532 CreateSurfacePixmap( pixmap, mColorDepth );
534 // set the context to be current with the new surface
535 MakeContextCurrent();
537 else // the display has changed, we need to start egl with a new x-connection
539 // Note! this code path is untested
541 // this will release all EGL specific resources
542 eglTerminate( mEglDisplay );
544 mGlesInitialized = false;
546 // let the adaptor know that all resources have been lost
549 // re-initialise GLES with the new connection
550 InitializeGles( display );
552 // create the EGL surface
553 CreateSurfacePixmap( pixmap, mColorDepth );
555 // create the OpenGL context
559 MakeContextCurrent();
564 EGLDisplay EglImplementation::GetDisplay() const
569 EGLDisplay EglImplementation::GetContext() const
574 } // namespace Adaptor
576 } // namespace Internal