1 // Copyright 2016 The SwiftShader Authors. All Rights Reserved.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 // Display.cpp: Implements the egl::Display class, representing the abstract
16 // display on which graphics are drawn. Implements EGLDisplay.
17 // [EGL 1.4] section 2.1.2 page 3.
18
19 #include "Display.h"
20
21 #include "main.h"
22 #include "libEGL/Surface.hpp"
23 #include "libEGL/Context.hpp"
24 #include "common/Image.hpp"
25 #include "common/debug.h"
26 #include "Common/MutexLock.hpp"
27
28 #ifdef __ANDROID__
29 #include <system/window.h>
30 #include <sys/ioctl.h>
31 #include <linux/fb.h>
32 #include <fcntl.h>
33 #elif defined(USE_X11)
34 #include "Main/libX11.hpp"
35 #elif defined(__APPLE__)
36 #include "OSXUtils.hpp"
37 #include <CoreFoundation/CoreFoundation.h>
38 #include <IOSurface/IOSurface.h>
39 #endif
40
41 #include <algorithm>
42 #include <vector>
43 #include <map>
44
45 namespace egl
46 {
47
48 class DisplayImplementation : public Display
49 {
50 public:
DisplayImplementation(EGLDisplay dpy,void * nativeDisplay)51 DisplayImplementation(EGLDisplay dpy, void *nativeDisplay) : Display(dpy, nativeDisplay) {}
~DisplayImplementation()52 ~DisplayImplementation() override {}
53
getSharedImage(EGLImageKHR name)54 Image *getSharedImage(EGLImageKHR name) override
55 {
56 return Display::getSharedImage(name);
57 }
58 };
59
get(EGLDisplay dpy)60 Display *Display::get(EGLDisplay dpy)
61 {
62 if(dpy != PRIMARY_DISPLAY && dpy != HEADLESS_DISPLAY) // We only support the default display
63 {
64 return nullptr;
65 }
66
67 static void *nativeDisplay = nullptr;
68
69 #if defined(USE_X11)
70 // Even if the application provides a native display handle, we open (and close) our own connection
71 if(!nativeDisplay && dpy != HEADLESS_DISPLAY && libX11 && libX11->XOpenDisplay)
72 {
73 nativeDisplay = libX11->XOpenDisplay(NULL);
74 }
75 #endif
76
77 static DisplayImplementation display(dpy, nativeDisplay);
78
79 return &display;
80 }
81
Display(EGLDisplay eglDisplay,void * nativeDisplay)82 Display::Display(EGLDisplay eglDisplay, void *nativeDisplay) : eglDisplay(eglDisplay), nativeDisplay(nativeDisplay)
83 {
84 mMinSwapInterval = 1;
85 mMaxSwapInterval = 1;
86 }
87
~Display()88 Display::~Display()
89 {
90 terminate();
91
92 #if defined(USE_X11)
93 if(nativeDisplay && libX11->XCloseDisplay)
94 {
95 libX11->XCloseDisplay((::Display*)nativeDisplay);
96 }
97 #endif
98 }
99
100 #if !defined(__i386__) && defined(_M_IX86)
101 #define __i386__ 1
102 #endif
103
104 #if !defined(__x86_64__) && (defined(_M_AMD64) || defined (_M_X64))
105 #define __x86_64__ 1
106 #endif
107
108 #if defined(__i386__) || defined(__x86_64__)
cpuid(int registers[4],int info)109 static void cpuid(int registers[4], int info)
110 {
111 #if defined(__i386__) || defined(__x86_64__)
112 #if defined(_WIN32)
113 __cpuid(registers, info);
114 #else
115 __asm volatile("cpuid": "=a" (registers[0]), "=b" (registers[1]), "=c" (registers[2]), "=d" (registers[3]): "a" (info));
116 #endif
117 #else
118 registers[0] = 0;
119 registers[1] = 0;
120 registers[2] = 0;
121 registers[3] = 0;
122 #endif
123 }
124
detectSSE()125 static bool detectSSE()
126 {
127 int registers[4];
128 cpuid(registers, 1);
129 return (registers[3] & 0x02000000) != 0;
130 }
131 #endif
132
initialize()133 bool Display::initialize()
134 {
135 if(isInitialized())
136 {
137 return true;
138 }
139
140 #if defined(__i386__) || defined(__x86_64__)
141 if(!detectSSE())
142 {
143 return false;
144 }
145 #endif
146
147 mMinSwapInterval = 0;
148 mMaxSwapInterval = 4;
149
150 const int samples[] =
151 {
152 0,
153 2,
154 4
155 };
156
157 const sw::Format renderTargetFormats[] =
158 {
159 // sw::FORMAT_A1R5G5B5,
160 // sw::FORMAT_A2R10G10B10, // The color_ramp conformance test uses ReadPixels with UNSIGNED_BYTE causing it to think that rendering skipped a colour value.
161 sw::FORMAT_A8R8G8B8,
162 sw::FORMAT_A8B8G8R8,
163 sw::FORMAT_R5G6B5,
164 // sw::FORMAT_X1R5G5B5, // Has no compatible OpenGL ES renderbuffer format
165 sw::FORMAT_X8R8G8B8,
166 sw::FORMAT_X8B8G8R8
167 };
168
169 const sw::Format depthStencilFormats[] =
170 {
171 sw::FORMAT_NULL,
172 // sw::FORMAT_D16_LOCKABLE,
173 sw::FORMAT_D32,
174 // sw::FORMAT_D15S1,
175 sw::FORMAT_D24S8,
176 sw::FORMAT_D24X8,
177 // sw::FORMAT_D24X4S4,
178 sw::FORMAT_D16,
179 // sw::FORMAT_D32F_LOCKABLE,
180 // sw::FORMAT_D24FS8
181 };
182
183 sw::Format currentDisplayFormat = getDisplayFormat();
184 ConfigSet configSet;
185
186 for(unsigned int samplesIndex = 0; samplesIndex < sizeof(samples) / sizeof(int); samplesIndex++)
187 {
188 for(sw::Format renderTargetFormat : renderTargetFormats)
189 {
190 for(sw::Format depthStencilFormat : depthStencilFormats)
191 {
192 configSet.add(currentDisplayFormat, mMinSwapInterval, mMaxSwapInterval, renderTargetFormat, depthStencilFormat, samples[samplesIndex]);
193 }
194 }
195 }
196
197 // Give the sorted configs a unique ID and store them internally
198 EGLint index = 1;
199 for(ConfigSet::Iterator config = configSet.mSet.begin(); config != configSet.mSet.end(); config++)
200 {
201 Config configuration = *config;
202 configuration.mConfigID = index;
203 index++;
204
205 mConfigSet.mSet.insert(configuration);
206 }
207
208 if(!isInitialized())
209 {
210 terminate();
211
212 return false;
213 }
214
215 return true;
216 }
217
terminate()218 void Display::terminate()
219 {
220 while(!mSurfaceSet.empty())
221 {
222 destroySurface(*mSurfaceSet.begin());
223 }
224
225 while(!mContextSet.empty())
226 {
227 destroyContext(*mContextSet.begin());
228 }
229
230 while(!mSharedImageNameSpace.empty())
231 {
232 destroySharedImage(reinterpret_cast<EGLImageKHR>((intptr_t)mSharedImageNameSpace.firstName()));
233 }
234 }
235
getConfigs(EGLConfig * configs,const EGLint * attribList,EGLint configSize,EGLint * numConfig)236 bool Display::getConfigs(EGLConfig *configs, const EGLint *attribList, EGLint configSize, EGLint *numConfig)
237 {
238 return mConfigSet.getConfigs(configs, attribList, configSize, numConfig);
239 }
240
getConfigAttrib(EGLConfig config,EGLint attribute,EGLint * value)241 bool Display::getConfigAttrib(EGLConfig config, EGLint attribute, EGLint *value)
242 {
243 const egl::Config *configuration = mConfigSet.get(config);
244
245 switch(attribute)
246 {
247 case EGL_BUFFER_SIZE: *value = configuration->mBufferSize; break;
248 case EGL_ALPHA_SIZE: *value = configuration->mAlphaSize; break;
249 case EGL_BLUE_SIZE: *value = configuration->mBlueSize; break;
250 case EGL_GREEN_SIZE: *value = configuration->mGreenSize; break;
251 case EGL_RED_SIZE: *value = configuration->mRedSize; break;
252 case EGL_DEPTH_SIZE: *value = configuration->mDepthSize; break;
253 case EGL_STENCIL_SIZE: *value = configuration->mStencilSize; break;
254 case EGL_CONFIG_CAVEAT: *value = configuration->mConfigCaveat; break;
255 case EGL_CONFIG_ID: *value = configuration->mConfigID; break;
256 case EGL_LEVEL: *value = configuration->mLevel; break;
257 case EGL_NATIVE_RENDERABLE: *value = configuration->mNativeRenderable; break;
258 case EGL_NATIVE_VISUAL_ID: *value = configuration->mNativeVisualID; break;
259 case EGL_NATIVE_VISUAL_TYPE: *value = configuration->mNativeVisualType; break;
260 case EGL_SAMPLES: *value = configuration->mSamples; break;
261 case EGL_SAMPLE_BUFFERS: *value = configuration->mSampleBuffers; break;
262 case EGL_SURFACE_TYPE: *value = configuration->mSurfaceType; break;
263 case EGL_TRANSPARENT_TYPE: *value = configuration->mTransparentType; break;
264 case EGL_TRANSPARENT_BLUE_VALUE: *value = configuration->mTransparentBlueValue; break;
265 case EGL_TRANSPARENT_GREEN_VALUE: *value = configuration->mTransparentGreenValue; break;
266 case EGL_TRANSPARENT_RED_VALUE: *value = configuration->mTransparentRedValue; break;
267 case EGL_BIND_TO_TEXTURE_RGB: *value = configuration->mBindToTextureRGB; break;
268 case EGL_BIND_TO_TEXTURE_RGBA: *value = configuration->mBindToTextureRGBA; break;
269 case EGL_MIN_SWAP_INTERVAL: *value = configuration->mMinSwapInterval; break;
270 case EGL_MAX_SWAP_INTERVAL: *value = configuration->mMaxSwapInterval; break;
271 case EGL_LUMINANCE_SIZE: *value = configuration->mLuminanceSize; break;
272 case EGL_ALPHA_MASK_SIZE: *value = configuration->mAlphaMaskSize; break;
273 case EGL_COLOR_BUFFER_TYPE: *value = configuration->mColorBufferType; break;
274 case EGL_RENDERABLE_TYPE: *value = configuration->mRenderableType; break;
275 case EGL_MATCH_NATIVE_PIXMAP: *value = EGL_FALSE; UNIMPLEMENTED(); break;
276 case EGL_CONFORMANT: *value = configuration->mConformant; break;
277 case EGL_MAX_PBUFFER_WIDTH: *value = configuration->mMaxPBufferWidth; break;
278 case EGL_MAX_PBUFFER_HEIGHT: *value = configuration->mMaxPBufferHeight; break;
279 case EGL_MAX_PBUFFER_PIXELS: *value = configuration->mMaxPBufferPixels; break;
280 case EGL_RECORDABLE_ANDROID: *value = configuration->mRecordableAndroid; break;
281 case EGL_FRAMEBUFFER_TARGET_ANDROID: *value = configuration->mFramebufferTargetAndroid; break;
282 default:
283 return false;
284 }
285
286 return true;
287 }
288
createWindowSurface(EGLNativeWindowType window,EGLConfig config,const EGLAttrib * attribList)289 EGLSurface Display::createWindowSurface(EGLNativeWindowType window, EGLConfig config, const EGLAttrib *attribList)
290 {
291 const Config *configuration = mConfigSet.get(config);
292
293 if(attribList)
294 {
295 while(*attribList != EGL_NONE)
296 {
297 switch(attribList[0])
298 {
299 case EGL_RENDER_BUFFER:
300 switch(attribList[1])
301 {
302 case EGL_BACK_BUFFER:
303 break;
304 case EGL_SINGLE_BUFFER:
305 return error(EGL_BAD_MATCH, EGL_NO_SURFACE); // Rendering directly to front buffer not supported
306 default:
307 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
308 }
309 break;
310 case EGL_VG_COLORSPACE:
311 return error(EGL_BAD_MATCH, EGL_NO_SURFACE);
312 case EGL_VG_ALPHA_FORMAT:
313 return error(EGL_BAD_MATCH, EGL_NO_SURFACE);
314 default:
315 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
316 }
317
318 attribList += 2;
319 }
320 }
321
322 if(hasExistingWindowSurface(window))
323 {
324 return error(EGL_BAD_ALLOC, EGL_NO_SURFACE);
325 }
326
327 Surface *surface = new WindowSurface(this, configuration, window);
328
329 if(!surface->initialize())
330 {
331 surface->release();
332 return EGL_NO_SURFACE;
333 }
334
335 surface->addRef();
336 mSurfaceSet.insert(surface);
337
338 return success(surface);
339 }
340
createPBufferSurface(EGLConfig config,const EGLint * attribList,EGLClientBuffer clientBuffer)341 EGLSurface Display::createPBufferSurface(EGLConfig config, const EGLint *attribList, EGLClientBuffer clientBuffer)
342 {
343 EGLint width = -1, height = -1, ioSurfacePlane = -1;
344 EGLenum textureFormat = EGL_NO_TEXTURE;
345 EGLenum textureTarget = EGL_NO_TEXTURE;
346 EGLenum clientBufferFormat = EGL_NO_TEXTURE;
347 EGLenum clientBufferType = EGL_NO_TEXTURE;
348 EGLBoolean largestPBuffer = EGL_FALSE;
349 const Config *configuration = mConfigSet.get(config);
350
351 if(attribList)
352 {
353 while(*attribList != EGL_NONE)
354 {
355 switch(attribList[0])
356 {
357 case EGL_WIDTH:
358 width = attribList[1];
359 break;
360 case EGL_HEIGHT:
361 height = attribList[1];
362 break;
363 case EGL_LARGEST_PBUFFER:
364 largestPBuffer = attribList[1];
365 break;
366 case EGL_TEXTURE_FORMAT:
367 switch(attribList[1])
368 {
369 case EGL_NO_TEXTURE:
370 case EGL_TEXTURE_RGB:
371 case EGL_TEXTURE_RGBA:
372 textureFormat = attribList[1];
373 break;
374 default:
375 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
376 }
377 break;
378 case EGL_TEXTURE_INTERNAL_FORMAT_ANGLE:
379 switch(attribList[1])
380 {
381 case GL_RED:
382 case GL_R16UI:
383 case GL_RG:
384 case GL_BGRA_EXT:
385 case GL_RGBA:
386 clientBufferFormat = attribList[1];
387 break;
388 default:
389 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
390 }
391 break;
392 case EGL_TEXTURE_TYPE_ANGLE:
393 switch(attribList[1])
394 {
395 case GL_UNSIGNED_BYTE:
396 case GL_UNSIGNED_SHORT:
397 case GL_HALF_FLOAT_OES:
398 case GL_HALF_FLOAT:
399 clientBufferType = attribList[1];
400 break;
401 default:
402 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
403 }
404 break;
405 case EGL_IOSURFACE_PLANE_ANGLE:
406 if(attribList[1] < 0)
407 {
408 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
409 }
410 ioSurfacePlane = attribList[1];
411 break;
412 case EGL_TEXTURE_TARGET:
413 switch(attribList[1])
414 {
415 case EGL_NO_TEXTURE:
416 case EGL_TEXTURE_2D:
417 case EGL_TEXTURE_RECTANGLE_ANGLE:
418 textureTarget = attribList[1];
419 break;
420 default:
421 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
422 }
423 break;
424 case EGL_MIPMAP_TEXTURE:
425 if(attribList[1] != EGL_FALSE)
426 {
427 UNIMPLEMENTED();
428 return error(EGL_BAD_MATCH, EGL_NO_SURFACE);
429 }
430 break;
431 case EGL_VG_COLORSPACE:
432 return error(EGL_BAD_MATCH, EGL_NO_SURFACE);
433 case EGL_VG_ALPHA_FORMAT:
434 return error(EGL_BAD_MATCH, EGL_NO_SURFACE);
435 default:
436 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
437 }
438
439 attribList += 2;
440 }
441 }
442
443 if(width < 0 || height < 0)
444 {
445 return error(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
446 }
447
448 if(width == 0 || height == 0)
449 {
450 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
451 }
452
453 if((textureFormat != EGL_NO_TEXTURE && textureTarget == EGL_NO_TEXTURE) ||
454 (textureFormat == EGL_NO_TEXTURE && textureTarget != EGL_NO_TEXTURE))
455 {
456 return error(EGL_BAD_MATCH, EGL_NO_SURFACE);
457 }
458
459 if(!(configuration->mSurfaceType & EGL_PBUFFER_BIT))
460 {
461 return error(EGL_BAD_MATCH, EGL_NO_SURFACE);
462 }
463
464 if(clientBuffer)
465 {
466 switch(clientBufferType)
467 {
468 case GL_UNSIGNED_BYTE:
469 switch(clientBufferFormat)
470 {
471 case GL_RED:
472 case GL_RG:
473 case GL_BGRA_EXT:
474 break;
475 case GL_R16UI:
476 case GL_RGBA:
477 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
478 default:
479 return error(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
480 }
481 break;
482 case GL_UNSIGNED_SHORT:
483 switch(clientBufferFormat)
484 {
485 case GL_R16UI:
486 break;
487 case GL_RED:
488 case GL_RG:
489 case GL_BGRA_EXT:
490 case GL_RGBA:
491 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
492 default:
493 return error(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
494 }
495 break;
496 case GL_HALF_FLOAT_OES:
497 case GL_HALF_FLOAT:
498 switch(clientBufferFormat)
499 {
500 case GL_RGBA:
501 break;
502 case GL_RED:
503 case GL_R16UI:
504 case GL_RG:
505 case GL_BGRA_EXT:
506 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
507 default:
508 return error(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
509 }
510 break;
511 default:
512 return error(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
513 }
514
515 if(ioSurfacePlane < 0)
516 {
517 return error(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
518 }
519
520 if(textureFormat != EGL_TEXTURE_RGBA)
521 {
522 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
523 }
524
525 if(textureTarget != EGL_TEXTURE_RECTANGLE_ANGLE)
526 {
527 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
528 }
529
530 #if defined(__APPLE__)
531 IOSurfaceRef ioSurface = reinterpret_cast<IOSurfaceRef>(clientBuffer);
532 size_t planeCount = IOSurfaceGetPlaneCount(ioSurface);
533 if((static_cast<size_t>(width) > IOSurfaceGetWidthOfPlane(ioSurface, ioSurfacePlane)) ||
534 (static_cast<size_t>(height) > IOSurfaceGetHeightOfPlane(ioSurface, ioSurfacePlane)) ||
535 ((planeCount != 0) && static_cast<size_t>(ioSurfacePlane) >= planeCount))
536 {
537 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
538 }
539 #endif
540 }
541 else
542 {
543 if((textureFormat == EGL_TEXTURE_RGB && configuration->mBindToTextureRGB != EGL_TRUE) ||
544 ((textureFormat == EGL_TEXTURE_RGBA && configuration->mBindToTextureRGBA != EGL_TRUE)))
545 {
546 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
547 }
548 }
549
550 Surface *surface = new PBufferSurface(this, configuration, width, height, textureFormat, textureTarget, clientBufferFormat, clientBufferType, largestPBuffer, clientBuffer, ioSurfacePlane);
551
552 if(!surface->initialize())
553 {
554 surface->release();
555 return EGL_NO_SURFACE;
556 }
557
558 surface->addRef();
559 mSurfaceSet.insert(surface);
560
561 return success(surface);
562 }
563
createContext(EGLConfig configHandle,const egl::Context * shareContext,EGLint clientVersion)564 EGLContext Display::createContext(EGLConfig configHandle, const egl::Context *shareContext, EGLint clientVersion)
565 {
566 const egl::Config *config = mConfigSet.get(configHandle);
567 egl::Context *context = nullptr;
568
569 if(clientVersion == 1 && config->mRenderableType & EGL_OPENGL_ES_BIT)
570 {
571 if(libGLES_CM)
572 {
573 context = libGLES_CM->es1CreateContext(this, shareContext, config);
574 }
575 }
576 else if((clientVersion == 2 && config->mRenderableType & EGL_OPENGL_ES2_BIT) ||
577 (clientVersion == 3 && config->mRenderableType & EGL_OPENGL_ES3_BIT))
578 {
579 if(libGLESv2)
580 {
581 context = libGLESv2->es2CreateContext(this, shareContext, config);
582 }
583 }
584 else
585 {
586 return error(EGL_BAD_CONFIG, EGL_NO_CONTEXT);
587 }
588
589 if(!context)
590 {
591 return error(EGL_BAD_ALLOC, EGL_NO_CONTEXT);
592 }
593
594 context->addRef();
595 mContextSet.insert(context);
596
597 return success(context);
598 }
599
createSync(Context * context)600 EGLSyncKHR Display::createSync(Context *context)
601 {
602 FenceSync *fenceSync = new egl::FenceSync(context);
603 LockGuard lock(mSyncSetMutex);
604 mSyncSet.insert(fenceSync);
605 return fenceSync;
606 }
607
destroySurface(egl::Surface * surface)608 void Display::destroySurface(egl::Surface *surface)
609 {
610 surface->release();
611 mSurfaceSet.erase(surface);
612
613 if(surface == getCurrentDrawSurface())
614 {
615 setCurrentDrawSurface(nullptr);
616 }
617
618 if(surface == getCurrentReadSurface())
619 {
620 setCurrentReadSurface(nullptr);
621 }
622 }
623
destroyContext(egl::Context * context)624 void Display::destroyContext(egl::Context *context)
625 {
626 context->release();
627 mContextSet.erase(context);
628
629 if(context == getCurrentContext())
630 {
631 setCurrentContext(nullptr);
632 setCurrentDrawSurface(nullptr);
633 setCurrentReadSurface(nullptr);
634 }
635 }
636
destroySync(FenceSync * sync)637 void Display::destroySync(FenceSync *sync)
638 {
639 {
640 LockGuard lock(mSyncSetMutex);
641 mSyncSet.erase(sync);
642 }
643 delete sync;
644 }
645
isInitialized() const646 bool Display::isInitialized() const
647 {
648 return mConfigSet.size() > 0;
649 }
650
isValidConfig(EGLConfig config)651 bool Display::isValidConfig(EGLConfig config)
652 {
653 return mConfigSet.get(config) != nullptr;
654 }
655
isValidContext(egl::Context * context)656 bool Display::isValidContext(egl::Context *context)
657 {
658 return mContextSet.find(context) != mContextSet.end();
659 }
660
isValidSurface(egl::Surface * surface)661 bool Display::isValidSurface(egl::Surface *surface)
662 {
663 return mSurfaceSet.find(surface) != mSurfaceSet.end();
664 }
665
isValidWindow(EGLNativeWindowType window)666 bool Display::isValidWindow(EGLNativeWindowType window)
667 {
668 #if defined(_WIN32)
669 return IsWindow(window) == TRUE;
670 #elif defined(__ANDROID__)
671 if(!window)
672 {
673 ERR("%s called with window==NULL %s:%d", __FUNCTION__, __FILE__, __LINE__);
674 return false;
675 }
676 if(static_cast<ANativeWindow*>(window)->common.magic != ANDROID_NATIVE_WINDOW_MAGIC)
677 {
678 ERR("%s called with window==%p bad magic %s:%d", __FUNCTION__, window, __FILE__, __LINE__);
679 return false;
680 }
681 return true;
682 #elif defined(USE_X11)
683 if(nativeDisplay)
684 {
685 XWindowAttributes windowAttributes;
686 Status status = libX11->XGetWindowAttributes((::Display*)nativeDisplay, window, &windowAttributes);
687
688 return status != 0;
689 }
690 return false;
691 #elif defined(__linux__)
692 return false; // Non X11 linux is headless only
693 #elif defined(__APPLE__)
694 return sw::OSX::IsValidWindow(window);
695 #elif defined(__Fuchsia__)
696 // TODO(crbug.com/800951): Integrate with Mozart.
697 return true;
698 #else
699 #error "Display::isValidWindow unimplemented for this platform"
700 return false;
701 #endif
702 }
703
hasExistingWindowSurface(EGLNativeWindowType window)704 bool Display::hasExistingWindowSurface(EGLNativeWindowType window)
705 {
706 for(const auto &surface : mSurfaceSet)
707 {
708 if(surface->isWindowSurface())
709 {
710 if(surface->getWindowHandle() == window)
711 {
712 return true;
713 }
714 }
715 }
716
717 return false;
718 }
719
isValidSync(FenceSync * sync)720 bool Display::isValidSync(FenceSync *sync)
721 {
722 LockGuard lock(mSyncSetMutex);
723 return mSyncSet.find(sync) != mSyncSet.end();
724 }
725
getMinSwapInterval() const726 EGLint Display::getMinSwapInterval() const
727 {
728 return mMinSwapInterval;
729 }
730
getMaxSwapInterval() const731 EGLint Display::getMaxSwapInterval() const
732 {
733 return mMaxSwapInterval;
734 }
735
getEGLDisplay() const736 EGLDisplay Display::getEGLDisplay() const
737 {
738 return eglDisplay;
739 }
740
getNativeDisplay() const741 void *Display::getNativeDisplay() const
742 {
743 return nativeDisplay;
744 }
745
createSharedImage(Image * image)746 EGLImageKHR Display::createSharedImage(Image *image)
747 {
748 return reinterpret_cast<EGLImageKHR>((intptr_t)mSharedImageNameSpace.allocate(image));
749 }
750
destroySharedImage(EGLImageKHR image)751 bool Display::destroySharedImage(EGLImageKHR image)
752 {
753 GLuint name = (GLuint)reinterpret_cast<intptr_t>(image);
754 Image *eglImage = mSharedImageNameSpace.find(name);
755
756 if(!eglImage)
757 {
758 return false;
759 }
760
761 eglImage->destroyShared();
762 mSharedImageNameSpace.remove(name);
763
764 return true;
765 }
766
getSharedImage(EGLImageKHR image)767 Image *Display::getSharedImage(EGLImageKHR image)
768 {
769 GLuint name = (GLuint)reinterpret_cast<intptr_t>(image);
770 return mSharedImageNameSpace.find(name);
771 }
772
getDisplayFormat() const773 sw::Format Display::getDisplayFormat() const
774 {
775 #if defined(_WIN32)
776 HDC deviceContext = GetDC(0);
777 unsigned int bpp = ::GetDeviceCaps(deviceContext, BITSPIXEL);
778 ReleaseDC(0, deviceContext);
779
780 switch(bpp)
781 {
782 case 32: return sw::FORMAT_X8R8G8B8;
783 case 24: return sw::FORMAT_R8G8B8;
784 case 16: return sw::FORMAT_R5G6B5;
785 default: UNREACHABLE(bpp); // Unexpected display mode color depth
786 }
787 #elif defined(__ANDROID__)
788 static const char *const framebuffer[] =
789 {
790 "/dev/graphics/fb0",
791 "/dev/fb0",
792 0
793 };
794
795 for(int i = 0; framebuffer[i]; i++)
796 {
797 int fd = open(framebuffer[i], O_RDONLY, 0);
798
799 if(fd != -1)
800 {
801 struct fb_var_screeninfo info;
802 int io = ioctl(fd, FBIOGET_VSCREENINFO, &info);
803 close(fd);
804
805 if(io >= 0)
806 {
807 switch(info.bits_per_pixel)
808 {
809 case 16:
810 return sw::FORMAT_R5G6B5;
811 case 32:
812 if(info.red.length == 8 && info.red.offset == 16 &&
813 info.green.length == 8 && info.green.offset == 8 &&
814 info.blue.length == 8 && info.blue.offset == 0 &&
815 info.transp.length == 0)
816 {
817 return sw::FORMAT_X8R8G8B8;
818 }
819 if(info.red.length == 8 && info.red.offset == 0 &&
820 info.green.length == 8 && info.green.offset == 8 &&
821 info.blue.length == 8 && info.blue.offset == 16 &&
822 info.transp.length == 0)
823 {
824 return sw::FORMAT_X8B8G8R8;
825 }
826 if(info.red.length == 8 && info.red.offset == 16 &&
827 info.green.length == 8 && info.green.offset == 8 &&
828 info.blue.length == 8 && info.blue.offset == 0 &&
829 info.transp.length == 8 && info.transp.offset == 24)
830 {
831 return sw::FORMAT_A8R8G8B8;
832 }
833 if(info.red.length == 8 && info.red.offset == 0 &&
834 info.green.length == 8 && info.green.offset == 8 &&
835 info.blue.length == 8 && info.blue.offset == 16 &&
836 info.transp.length == 8 && info.transp.offset == 24)
837 {
838 return sw::FORMAT_A8B8G8R8;
839 }
840 else UNIMPLEMENTED();
841 default:
842 UNIMPLEMENTED();
843 }
844 }
845 }
846 }
847
848 // No framebuffer device found, or we're in user space
849 return sw::FORMAT_X8B8G8R8;
850 #elif defined(USE_X11)
851 if(nativeDisplay)
852 {
853 Screen *screen = libX11->XDefaultScreenOfDisplay((::Display*)nativeDisplay);
854 unsigned int bpp = libX11->XPlanesOfScreen(screen);
855
856 switch(bpp)
857 {
858 case 32: return sw::FORMAT_X8R8G8B8;
859 case 24: return sw::FORMAT_R8G8B8;
860 case 16: return sw::FORMAT_R5G6B5;
861 default: UNREACHABLE(bpp); // Unexpected display mode color depth
862 }
863 }
864 else
865 {
866 return sw::FORMAT_X8R8G8B8;
867 }
868 #elif defined(__linux__) // Non X11 linux is headless only
869 return sw::FORMAT_A8B8G8R8;
870 #elif defined(__APPLE__)
871 return sw::FORMAT_A8B8G8R8;
872 #elif defined(__Fuchsia__)
873 return sw::FORMAT_A8B8G8R8;
874 #else
875 #error "Display::isValidWindow unimplemented for this platform"
876 #endif
877
878 return sw::FORMAT_X8R8G8B8;
879 }
880
881 }
882