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),
59 mContextCurrent(false),
61 mColorDepth(COLOR_DEPTH_24)
65 EglImplementation::~EglImplementation()
70 bool EglImplementation::InitializeGles( EGLNativeDisplayType display, bool isOwnSurface )
72 if ( !mGlesInitialized )
74 mEglNativeDisplay = display;
76 //@todo see if we can just EGL_DEFAULT_DISPLAY instead
77 mEglDisplay = eglGetDisplay(mEglNativeDisplay);
79 EGLint majorVersion = 0;
80 EGLint minorVersion = 0;
81 if ( !eglInitialize( mEglDisplay, &majorVersion, &minorVersion ) )
85 eglBindAPI(EGL_OPENGL_ES_API);
87 mContextAttribs.Clear();
89 #if DALI_GLES_VERSION >= 30
91 mContextAttribs.Reserve(5);
92 mContextAttribs.PushBack( EGL_CONTEXT_MAJOR_VERSION_KHR );
93 mContextAttribs.PushBack( 3 );
94 mContextAttribs.PushBack( EGL_CONTEXT_MINOR_VERSION_KHR );
95 mContextAttribs.PushBack( 0 );
97 #else // DALI_GLES_VERSION >= 30
99 mContextAttribs.Reserve(3);
100 mContextAttribs.PushBack( EGL_CONTEXT_CLIENT_VERSION );
101 mContextAttribs.PushBack( 2 );
103 #endif // DALI_GLES_VERSION >= 30
105 mContextAttribs.PushBack( EGL_NONE );
107 mGlesInitialized = true;
108 mIsOwnSurface = isOwnSurface;
111 return mGlesInitialized;
114 bool EglImplementation::CreateContext()
116 // make sure a context isn't created twice
117 DALI_ASSERT_ALWAYS( (mEglContext == 0) && "EGL context recreated" );
119 mEglContext = eglCreateContext(mEglDisplay, mEglConfig, NULL, &(mContextAttribs[0]));
120 TEST_EGL_ERROR("eglCreateContext render thread");
122 DALI_ASSERT_ALWAYS( EGL_NO_CONTEXT != mEglContext && "EGL context not created" );
127 void EglImplementation::DestroyContext()
129 DALI_ASSERT_ALWAYS( mEglContext && "no EGL context" );
131 eglDestroyContext( mEglDisplay, mEglContext );
135 void EglImplementation::DestroySurface()
137 if(mIsOwnSurface && mEglSurface)
139 eglDestroySurface( mEglDisplay, mEglSurface );
144 void EglImplementation::MakeContextCurrent()
146 mContextCurrent = true;
150 eglMakeCurrent( mEglDisplay, mEglSurface, mEglSurface, mEglContext );
153 EGLint error = eglGetError();
155 if ( error != EGL_SUCCESS )
159 case EGL_BAD_DISPLAY:
161 DALI_LOG_ERROR("EGL_BAD_DISPLAY : Display is not an EGL display connection");
164 case EGL_NOT_INITIALIZED:
166 DALI_LOG_ERROR("EGL_NOT_INITIALIZED : Display has not been initialized");
169 case EGL_BAD_SURFACE:
171 DALI_LOG_ERROR("EGL_BAD_SURFACE : Draw or read is not an EGL surface");
174 case EGL_BAD_CONTEXT:
176 DALI_LOG_ERROR("EGL_BAD_CONTEXT : Context is not an EGL rendering context");
181 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");
186 DALI_LOG_ERROR("EGL_BAD_ACCESS : Context is current to some other thread");
189 case EGL_BAD_NATIVE_PIXMAP:
191 DALI_LOG_ERROR("EGL_BAD_NATIVE_PIXMAP : A native pixmap underlying either draw or read is no longer valid.");
194 case EGL_BAD_NATIVE_WINDOW:
196 DALI_LOG_ERROR("EGL_BAD_NATIVE_WINDOW : A native window underlying either draw or read is no longer valid.");
199 case EGL_BAD_CURRENT_SURFACE:
201 DALI_LOG_ERROR("EGL_BAD_CURRENT_SURFACE : The previous context has unflushed commands and the previous surface is no longer valid.");
206 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");
209 case EGL_CONTEXT_LOST:
211 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");
216 DALI_LOG_ERROR("Unknown error");
220 DALI_ASSERT_ALWAYS(false && "MakeContextCurrent failed!");
223 // We want to display this information all the time, so use the LogMessage directly
224 Integration::Log::LogMessage(Integration::Log::DebugInfo, "EGL Information\n"
229 eglQueryString(mEglDisplay, EGL_VENDOR),
230 eglQueryString(mEglDisplay, EGL_VERSION),
231 eglQueryString(mEglDisplay, EGL_CLIENT_APIS),
232 eglQueryString(mEglDisplay, EGL_EXTENSIONS));
236 void EglImplementation::MakeContextNull()
238 mContextCurrent = false;
239 // clear the current context
240 eglMakeCurrent( mEglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT );
243 void EglImplementation::TerminateGles()
245 if ( mGlesInitialized )
247 // in latest Mali DDK (r2p3 ~ r3p0 in April, 2012),
248 // MakeContextNull should be called before eglDestroy surface
249 // to prevent crash in _mali_surface_destroy_callback
252 if(mIsOwnSurface && mEglSurface)
254 eglDestroySurface(mEglDisplay, mEglSurface);
256 eglDestroyContext(mEglDisplay, mEglContext);
258 eglTerminate(mEglDisplay);
265 mGlesInitialized = false;
269 bool EglImplementation::IsGlesInitialized() const
271 return mGlesInitialized;
274 void EglImplementation::SwapBuffers()
276 eglSwapBuffers( mEglDisplay, mEglSurface );
279 void EglImplementation::CopyBuffers()
281 eglCopyBuffers( mEglDisplay, mEglSurface, mEglNativePixmap );
284 void EglImplementation::WaitGL()
289 void EglImplementation::ChooseConfig( bool isWindowType, ColorDepth depth )
291 if(mEglConfig && isWindowType == mIsWindow && mColorDepth == depth)
296 mIsWindow = isWindowType;
299 Vector<EGLint> configAttribs;
300 configAttribs.Reserve(31);
304 configAttribs.PushBack( EGL_SURFACE_TYPE );
305 configAttribs.PushBack( EGL_WINDOW_BIT );
309 configAttribs.PushBack( EGL_SURFACE_TYPE );
310 configAttribs.PushBack( EGL_PIXMAP_BIT );
313 configAttribs.PushBack( EGL_RENDERABLE_TYPE );
315 #if DALI_GLES_VERSION >= 30
318 configAttribs.PushBack( EGL_OPENGL_ES3_BIT_KHR );
320 // There is a bug in the desktop emulator
321 // Requesting for ES3 causes eglCreateContext even though it allows to ask
322 // for a configuration that supports GLES 3.0
323 configAttribs.PushBack( EGL_OPENGL_ES2_BIT );
326 #else // DALI_GLES_VERSION >= 30
328 configAttribs.PushBack( EGL_OPENGL_ES2_BIT );
330 #endif //DALI_GLES_VERSION >= 30
332 #if DALI_GLES_VERSION >= 30
333 // TODO: enable this flag when it becomes supported
334 // configAttribs.PushBack( EGL_CONTEXT_FLAGS_KHR );
335 // configAttribs.PushBack( EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR );
336 #endif //DALI_GLES_VERSION >= 30
338 configAttribs.PushBack( EGL_RED_SIZE );
339 configAttribs.PushBack( 8 );
340 configAttribs.PushBack( EGL_GREEN_SIZE );
341 configAttribs.PushBack( 8 );
342 configAttribs.PushBack( EGL_BLUE_SIZE );
343 configAttribs.PushBack( 8 );
345 configAttribs.PushBack( EGL_ALPHA_SIZE );
347 configAttribs.PushBack( (depth == COLOR_DEPTH_32) ? 8 : 0 );
349 // There is a bug in the desktop emulator
350 // setting EGL_ALPHA_SIZE to 8 results in eglChooseConfig failing
351 configAttribs.PushBack( 0 );
354 configAttribs.PushBack( EGL_DEPTH_SIZE );
355 configAttribs.PushBack( 24 );
356 configAttribs.PushBack( EGL_STENCIL_SIZE );
357 configAttribs.PushBack( 8 );
358 configAttribs.PushBack( EGL_SAMPLES );
359 configAttribs.PushBack( 4 );
360 configAttribs.PushBack( EGL_SAMPLE_BUFFERS );
361 configAttribs.PushBack( 1 );
362 configAttribs.PushBack( EGL_NONE );
364 if ( eglChooseConfig( mEglDisplay, &(configAttribs[0]), &mEglConfig, 1, &numConfigs ) != EGL_TRUE )
366 EGLint error = eglGetError();
369 case EGL_BAD_DISPLAY:
371 DALI_LOG_ERROR("Display is not an EGL display connection");
374 case EGL_BAD_ATTRIBUTE:
376 DALI_LOG_ERROR("The parameter confirAttribs contains an invalid frame buffer configuration attribute or an attribute value that is unrecognized or out of range");
379 case EGL_NOT_INITIALIZED:
381 DALI_LOG_ERROR("Display has not been initialized");
384 case EGL_BAD_PARAMETER:
386 DALI_LOG_ERROR("The parameter numConfig is NULL");
391 DALI_LOG_ERROR("Unknown error");
394 DALI_ASSERT_ALWAYS(false && "eglChooseConfig failed!");
397 if ( numConfigs != 1 )
399 DALI_LOG_ERROR("No configurations found.");
401 TEST_EGL_ERROR("eglChooseConfig");
406 void EglImplementation::CreateSurfaceWindow( EGLNativeWindowType window, ColorDepth depth )
408 DALI_ASSERT_ALWAYS( ( mEglSurface == 0 ) && "EGL surface already exists" );
410 mEglNativeWindow = window;
415 ChooseConfig(mIsWindow, mColorDepth);
417 mEglSurface = eglCreateWindowSurface( mEglDisplay, mEglConfig, mEglNativeWindow, NULL );
418 TEST_EGL_ERROR("eglCreateWindowSurface");
420 DALI_ASSERT_ALWAYS( mEglSurface && "Create window surface failed" );
423 void EglImplementation::CreateSurfacePixmap( EGLNativePixmapType pixmap, ColorDepth depth )
425 DALI_ASSERT_ALWAYS( mEglSurface == 0 && "Cannot create more than one instance of surface pixmap" );
427 mEglNativePixmap = pixmap;
432 ChooseConfig(mIsWindow, mColorDepth);
434 mEglSurface = eglCreatePixmapSurface( mEglDisplay, mEglConfig, mEglNativePixmap, NULL );
435 TEST_EGL_ERROR("eglCreatePixmapSurface");
437 DALI_ASSERT_ALWAYS( mEglSurface && "Create pixmap surface failed" );
440 bool EglImplementation::ReplaceSurfaceWindow( EGLNativeWindowType window, EGLNativeDisplayType display )
442 bool contextLost = false;
444 // the surface is bound to the context, so set the context to null
447 // destroy the surface
450 // If the display has not changed, then we can just create a new surface
451 if ( display == mEglNativeDisplay )
453 // create the EGL surface
454 CreateSurfaceWindow( window, mColorDepth );
456 // set the context to be current with the new surface
457 MakeContextCurrent();
459 else // the display has changed, we need to start egl with a new x-connection
461 // Note! this code path is untested
463 // this will release all EGL specific resources
464 eglTerminate( mEglDisplay );
466 mGlesInitialized = false;
468 // let the adaptor know that all resources have been lost
471 // re-initialise GLES with the new connection
472 InitializeGles( display );
474 // create the EGL surface
475 CreateSurfaceWindow( window, mColorDepth );
477 // create the OpenGL context
481 MakeContextCurrent();
487 bool EglImplementation::ReplaceSurfacePixmap( EGLNativePixmapType pixmap, EGLNativeDisplayType display )
489 bool contextLost = false;
491 // the surface is bound to the context, so set the context to null
494 // destroy the surface
497 // If the display has not changed, then we can just create a new surface
498 if ( display == mEglNativeDisplay )
500 // create the EGL surface
501 CreateSurfacePixmap( pixmap, mColorDepth );
503 // set the context to be current with the new surface
504 MakeContextCurrent();
506 else // the display has changed, we need to start egl with a new x-connection
508 // Note! this code path is untested
510 // this will release all EGL specific resources
511 eglTerminate( mEglDisplay );
513 mGlesInitialized = false;
515 // let the adaptor know that all resources have been lost
518 // re-initialise GLES with the new connection
519 InitializeGles( display );
521 // create the EGL surface
522 CreateSurfacePixmap( pixmap, mColorDepth );
524 // create the OpenGL context
528 MakeContextCurrent();
533 EGLDisplay EglImplementation::GetDisplay() const
538 EGLDisplay EglImplementation::GetContext() const
543 } // namespace Adaptor
545 } // namespace Internal