1 // 2 // Copyright 2016 The ANGLE Project Authors. All rights reserved. 3 // Use of this source code is governed by a BSD-style license that can be 4 // found in the LICENSE file. 5 // 6 // SurfaceVk.h: 7 // Defines the class interface for SurfaceVk, implementing SurfaceImpl. 8 // 9 10 #ifndef LIBANGLE_RENDERER_VULKAN_SURFACEVK_H_ 11 #define LIBANGLE_RENDERER_VULKAN_SURFACEVK_H_ 12 13 #include "common/CircularBuffer.h" 14 #include "common/SimpleMutex.h" 15 #include "common/vulkan/vk_headers.h" 16 #include "libANGLE/renderer/SurfaceImpl.h" 17 #include "libANGLE/renderer/vulkan/CommandProcessor.h" 18 #include "libANGLE/renderer/vulkan/RenderTargetVk.h" 19 #include "libANGLE/renderer/vulkan/vk_helpers.h" 20 21 namespace rx 22 { 23 class SurfaceVk : public SurfaceImpl, public angle::ObserverInterface, public vk::Resource 24 { 25 public: 26 angle::Result getAttachmentRenderTarget(const gl::Context *context, 27 GLenum binding, 28 const gl::ImageIndex &imageIndex, 29 GLsizei samples, 30 FramebufferAttachmentRenderTarget **rtOut) override; 31 32 protected: 33 SurfaceVk(const egl::SurfaceState &surfaceState); 34 ~SurfaceVk() override; 35 36 void destroy(const egl::Display *display) override; 37 // We monitor the staging buffer for changes. This handles staged data from outside this class. 38 void onSubjectStateChange(angle::SubjectIndex index, angle::SubjectMessage message) override; 39 40 // width and height can change with client window resizing 41 EGLint getWidth() const override; 42 EGLint getHeight() const override; 43 44 EGLint mWidth; 45 EGLint mHeight; 46 47 RenderTargetVk mColorRenderTarget; 48 RenderTargetVk mDepthStencilRenderTarget; 49 }; 50 51 class OffscreenSurfaceVk : public SurfaceVk 52 { 53 public: 54 OffscreenSurfaceVk(const egl::SurfaceState &surfaceState, vk::Renderer *renderer); 55 ~OffscreenSurfaceVk() override; 56 57 egl::Error initialize(const egl::Display *display) override; 58 void destroy(const egl::Display *display) override; 59 60 egl::Error unMakeCurrent(const gl::Context *context) override; getColorImage()61 const vk::ImageHelper *getColorImage() const { return &mColorAttachment.image; } 62 63 egl::Error swap(const gl::Context *context) override; 64 egl::Error postSubBuffer(const gl::Context *context, 65 EGLint x, 66 EGLint y, 67 EGLint width, 68 EGLint height) override; 69 egl::Error querySurfacePointerANGLE(EGLint attribute, void **value) override; 70 egl::Error bindTexImage(const gl::Context *context, 71 gl::Texture *texture, 72 EGLint buffer) override; 73 egl::Error releaseTexImage(const gl::Context *context, EGLint buffer) override; 74 egl::Error getSyncValues(EGLuint64KHR *ust, EGLuint64KHR *msc, EGLuint64KHR *sbc) override; 75 egl::Error getMscRate(EGLint *numerator, EGLint *denominator) override; 76 void setSwapInterval(const egl::Display *display, EGLint interval) override; 77 78 EGLint isPostSubBufferSupported() const override; 79 EGLint getSwapBehavior() const override; 80 81 angle::Result initializeContents(const gl::Context *context, 82 GLenum binding, 83 const gl::ImageIndex &imageIndex) override; 84 85 vk::ImageHelper *getColorAttachmentImage(); 86 87 egl::Error lockSurface(const egl::Display *display, 88 EGLint usageHint, 89 bool preservePixels, 90 uint8_t **bufferPtrOut, 91 EGLint *bufferPitchOut) override; 92 egl::Error unlockSurface(const egl::Display *display, bool preservePixels) override; 93 EGLint origin() const override; 94 95 egl::Error attachToFramebuffer(const gl::Context *context, 96 gl::Framebuffer *framebuffer) override; 97 egl::Error detachFromFramebuffer(const gl::Context *context, 98 gl::Framebuffer *framebuffer) override; 99 100 protected: 101 struct AttachmentImage final : angle::NonCopyable 102 { 103 AttachmentImage(SurfaceVk *surfaceVk); 104 ~AttachmentImage(); 105 106 angle::Result initialize(DisplayVk *displayVk, 107 EGLint width, 108 EGLint height, 109 const vk::Format &vkFormat, 110 GLint samples, 111 bool isRobustResourceInitEnabled, 112 bool hasProtectedContent); 113 114 void destroy(const egl::Display *display); 115 116 vk::ImageHelper image; 117 vk::ImageViewHelper imageViews; 118 angle::ObserverBinding imageObserverBinding; 119 }; 120 121 virtual angle::Result initializeImpl(DisplayVk *displayVk); 122 123 AttachmentImage mColorAttachment; 124 AttachmentImage mDepthStencilAttachment; 125 126 // EGL_KHR_lock_surface3 127 vk::BufferHelper mLockBufferHelper; 128 }; 129 130 // Data structures used in WindowSurfaceVk 131 namespace impl 132 { 133 static constexpr size_t kSwapHistorySize = 2; 134 135 // Old swapchain and associated present fences/semaphores that need to be scheduled for 136 // recycling/destruction when appropriate. 137 struct SwapchainCleanupData : angle::NonCopyable 138 { 139 SwapchainCleanupData(); 140 SwapchainCleanupData(SwapchainCleanupData &&other); 141 ~SwapchainCleanupData(); 142 143 // Fences must not be empty (VK_EXT_swapchain_maintenance1 is supported). 144 VkResult getFencesStatus(VkDevice device) const; 145 // Waits fences if any. Use before force destroying the swapchain. 146 void waitFences(VkDevice device, uint64_t timeout) const; 147 void destroy(VkDevice device, 148 vk::Recycler<vk::Fence> *fenceRecycler, 149 vk::Recycler<vk::Semaphore> *semaphoreRecycler); 150 151 // The swapchain to be destroyed. 152 VkSwapchainKHR swapchain = VK_NULL_HANDLE; 153 // Any present fences/semaphores that were pending recycle at the time the swapchain was 154 // recreated will be scheduled for recycling at the same time as the swapchain's destruction. 155 // fences must be in the present operation order. 156 std::vector<vk::Fence> fences; 157 std::vector<vk::Semaphore> semaphores; 158 }; 159 160 // Each present operation is associated with a wait semaphore. To know when that semaphore can be 161 // recycled, a swapSerial is used. When that swapSerial is finished, the semaphore used in the 162 // previous present operation involving imageIndex can be recycled. See doc/PresentSemaphores.md 163 // for details. 164 // When VK_EXT_swapchain_maintenance1 is supported, present fence is used instead of the swapSerial. 165 // 166 // Old swapchains are scheduled to be destroyed at the same time as the last wait semaphore used to 167 // present an image to the old swapchains can be recycled (only relevant when 168 // VK_EXT_swapchain_maintenance1 is not supported). 169 struct ImagePresentOperation : angle::NonCopyable 170 { 171 ImagePresentOperation(); 172 ImagePresentOperation(ImagePresentOperation &&other); 173 ImagePresentOperation &operator=(ImagePresentOperation &&other); 174 ~ImagePresentOperation(); 175 176 void destroy(VkDevice device, 177 vk::Recycler<vk::Fence> *fenceRecycler, 178 vk::Recycler<vk::Semaphore> *semaphoreRecycler); 179 180 // fence is only used when VK_EXT_swapchain_maintenance1 is supported. 181 vk::Fence fence; 182 vk::Semaphore semaphore; 183 184 // Below members only relevant when VK_EXT_swapchain_maintenance1 is not supported. 185 // Used to associate a swapSerial with the previous present operation of the image. 186 uint32_t imageIndex; 187 QueueSerial queueSerial; 188 std::deque<SwapchainCleanupData> oldSwapchains; 189 }; 190 191 // Swapchain images and their associated objects. 192 struct SwapchainImage : angle::NonCopyable 193 { 194 SwapchainImage(); 195 SwapchainImage(SwapchainImage &&other); 196 ~SwapchainImage(); 197 198 std::unique_ptr<vk::ImageHelper> image; 199 vk::ImageViewHelper imageViews; 200 vk::Framebuffer framebuffer; 201 vk::Framebuffer fetchFramebuffer; 202 203 uint64_t frameNumber = 0; 204 }; 205 206 enum class ImageAcquireState 207 { 208 Ready, 209 NeedToAcquire, 210 NeedToProcessResult, 211 }; 212 213 // Associated data for a call to vkAcquireNextImageKHR without necessarily holding the share group 214 // and global locks but ONLY from a thread where Surface is current. 215 struct UnlockedAcquireData : angle::NonCopyable 216 { 217 // Given that the CPU is throttled after a number of swaps, there is an upper bound to the 218 // number of semaphores that are used to acquire swapchain images, and that is 219 // kSwapHistorySize+1: 220 // 221 // Unrelated submission in Submission as part of 222 // the middle of frame buffer swap 223 // | | 224 // V V 225 // Frame i: ... ANI ... QS (fence Fa) ... QS (Fence Fb) QP Wait(..) 226 // Frame i+1: ... ANI ... QS (fence Fc) ... QS (Fence Fd) QP Wait(..) <--\ 227 // Frame i+2: ... ANI ... QS (fence Fe) ... QS (Fence Ff) QP Wait(Fb) | 228 // ^ | 229 // | | 230 // CPU throttling | 231 // | 232 // Note: app should throttle itself here (equivalent of Wait(Fb)) 233 // 234 // In frame i+2 (2 is kSwapHistorySize), ANGLE waits on fence Fb which means that the semaphore 235 // used for Frame i's ANI can be reused (because Fb-is-signalled implies Fa-is-signalled). 236 // Before this wait, there were three acquire semaphores in use corresponding to frames i, i+1 237 // and i+2. Frame i+3 can reuse the semaphore of frame i. 238 angle::CircularBuffer<vk::Semaphore, impl::kSwapHistorySize + 1> acquireImageSemaphores; 239 }; 240 241 struct UnlockedAcquireResult : angle::NonCopyable 242 { 243 // The result of the call to vkAcquireNextImageKHR. 244 VkResult result = VK_SUCCESS; 245 246 // Semaphore to signal. 247 VkSemaphore acquireSemaphore = VK_NULL_HANDLE; 248 249 // Image index that was acquired 250 uint32_t imageIndex = std::numeric_limits<uint32_t>::max(); 251 }; 252 253 struct ImageAcquireOperation : angle::NonCopyable 254 { 255 // Initially image needs to be acquired. 256 ImageAcquireState state = ImageAcquireState::NeedToAcquire; 257 258 // No synchronization is necessary when making the vkAcquireNextImageKHR call since it is ONLY 259 // possible on a thread where Surface is current. 260 UnlockedAcquireData unlockedAcquireData; 261 UnlockedAcquireResult unlockedAcquireResult; 262 }; 263 } // namespace impl 264 265 class WindowSurfaceVk : public SurfaceVk 266 { 267 public: 268 WindowSurfaceVk(const egl::SurfaceState &surfaceState, EGLNativeWindowType window); 269 ~WindowSurfaceVk() override; 270 271 void destroy(const egl::Display *display) override; 272 273 egl::Error initialize(const egl::Display *display) override; 274 275 egl::Error unMakeCurrent(const gl::Context *context) override; 276 277 angle::Result getAttachmentRenderTarget(const gl::Context *context, 278 GLenum binding, 279 const gl::ImageIndex &imageIndex, 280 GLsizei samples, 281 FramebufferAttachmentRenderTarget **rtOut) override; 282 egl::Error prepareSwap(const gl::Context *context) override; 283 egl::Error swap(const gl::Context *context) override; 284 egl::Error swapWithDamage(const gl::Context *context, 285 const EGLint *rects, 286 EGLint n_rects) override; 287 egl::Error postSubBuffer(const gl::Context *context, 288 EGLint x, 289 EGLint y, 290 EGLint width, 291 EGLint height) override; 292 egl::Error querySurfacePointerANGLE(EGLint attribute, void **value) override; 293 egl::Error bindTexImage(const gl::Context *context, 294 gl::Texture *texture, 295 EGLint buffer) override; 296 egl::Error releaseTexImage(const gl::Context *context, EGLint buffer) override; 297 egl::Error getSyncValues(EGLuint64KHR *ust, EGLuint64KHR *msc, EGLuint64KHR *sbc) override; 298 egl::Error getMscRate(EGLint *numerator, EGLint *denominator) override; 299 void setSwapInterval(const egl::Display *display, EGLint interval) override; 300 301 // Note: windows cannot be resized on Android. The approach requires 302 // calling vkGetPhysicalDeviceSurfaceCapabilitiesKHR. However, that is 303 // expensive; and there are troublesome timing issues for other parts of 304 // ANGLE (which cause test failures and crashes). Therefore, a 305 // special-Android-only path is created just for the querying of EGL_WIDTH 306 // and EGL_HEIGHT. 307 // https://issuetracker.google.com/issues/153329980 308 egl::Error getUserWidth(const egl::Display *display, EGLint *value) const override; 309 egl::Error getUserHeight(const egl::Display *display, EGLint *value) const override; 310 angle::Result getUserExtentsImpl(DisplayVk *displayVk, 311 VkSurfaceCapabilitiesKHR *surfaceCaps) const; 312 313 EGLint isPostSubBufferSupported() const override; 314 EGLint getSwapBehavior() const override; 315 316 angle::Result initializeContents(const gl::Context *context, 317 GLenum binding, 318 const gl::ImageIndex &imageIndex) override; 319 320 vk::Framebuffer &chooseFramebuffer(); 321 322 angle::Result getCurrentFramebuffer(ContextVk *context, 323 vk::FramebufferFetchMode fetchMode, 324 const vk::RenderPass &compatibleRenderPass, 325 vk::Framebuffer *framebufferOut); 326 getPreTransform()327 VkSurfaceTransformFlagBitsKHR getPreTransform() const 328 { 329 if (mEmulatedPreTransform != VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR) 330 { 331 return mEmulatedPreTransform; 332 } 333 return mPreTransform; 334 } 335 336 egl::Error setAutoRefreshEnabled(bool enabled) override; 337 338 egl::Error getBufferAge(const gl::Context *context, EGLint *age) override; 339 340 egl::Error setRenderBuffer(EGLint renderBuffer) override; 341 isSharedPresentMode()342 bool isSharedPresentMode() const 343 { 344 return (mSwapchainPresentMode == vk::PresentMode::SharedDemandRefreshKHR || 345 mSwapchainPresentMode == vk::PresentMode::SharedContinuousRefreshKHR); 346 } 347 isSharedPresentModeDesired()348 bool isSharedPresentModeDesired() const 349 { 350 return (mDesiredSwapchainPresentMode == vk::PresentMode::SharedDemandRefreshKHR || 351 mDesiredSwapchainPresentMode == vk::PresentMode::SharedContinuousRefreshKHR); 352 } 353 354 egl::Error lockSurface(const egl::Display *display, 355 EGLint usageHint, 356 bool preservePixels, 357 uint8_t **bufferPtrOut, 358 EGLint *bufferPitchOut) override; 359 egl::Error unlockSurface(const egl::Display *display, bool preservePixels) override; 360 EGLint origin() const override; 361 362 egl::Error attachToFramebuffer(const gl::Context *context, 363 gl::Framebuffer *framebuffer) override; 364 egl::Error detachFromFramebuffer(const gl::Context *context, 365 gl::Framebuffer *framebuffer) override; 366 367 angle::Result onSharedPresentContextFlush(const gl::Context *context); 368 369 bool hasStagedUpdates() const; 370 371 void setTimestampsEnabled(bool enabled) override; 372 373 protected: 374 angle::Result swapImpl(const gl::Context *context, 375 const EGLint *rects, 376 EGLint n_rects, 377 const void *pNextChain); 378 // Called when a swapchain image whose acquisition was deferred must be acquired. This method 379 // will recreate the swapchain (if needed due to present returning OUT_OF_DATE, swap interval 380 // changing, surface size changing etc, by calling prepareForAcquireNextSwapchainImage()) and 381 // call the doDeferredAcquireNextImageWithUsableSwapchain() method. 382 angle::Result doDeferredAcquireNextImage(const gl::Context *context, 383 bool forceSwapchainRecreate); 384 // Calls acquireNextSwapchainImage() and sets up the acquired image. On some platforms, 385 // vkAcquireNextImageKHR returns OUT_OF_DATE instead of present, so this function may still 386 // recreate the swapchain. The main difference with doDeferredAcquireNextImage is that it does 387 // not check for surface property changes for the purposes of swapchain recreation (because 388 // that's already done by prepareForAcquireNextSwapchainImage. 389 angle::Result doDeferredAcquireNextImageWithUsableSwapchain(const gl::Context *context); 390 391 EGLNativeWindowType mNativeWindowType; 392 VkSurfaceKHR mSurface; 393 VkSurfaceCapabilitiesKHR mSurfaceCaps; 394 VkBool32 mSupportsProtectedSwapchain; 395 396 private: 397 virtual angle::Result createSurfaceVk(vk::Context *context, gl::Extents *extentsOut) = 0; 398 virtual angle::Result getCurrentWindowSize(vk::Context *context, gl::Extents *extentsOut) = 0; 399 400 void setSwapInterval(DisplayVk *displayVk, EGLint interval); 401 402 angle::Result initializeImpl(DisplayVk *displayVk, bool *anyMatchesOut); 403 angle::Result recreateSwapchain(ContextVk *contextVk, const gl::Extents &extents); 404 angle::Result createSwapChain(vk::Context *context, const gl::Extents &extents); 405 angle::Result collectOldSwapchain(ContextVk *contextVk, VkSwapchainKHR swapchain); 406 angle::Result queryAndAdjustSurfaceCaps(ContextVk *contextVk, 407 VkSurfaceCapabilitiesKHR *surfaceCaps); 408 angle::Result checkForOutOfDateSwapchain(ContextVk *contextVk, bool forceRecreate); 409 angle::Result resizeSwapchainImages(vk::Context *context, uint32_t imageCount); 410 void releaseSwapchainImages(ContextVk *contextVk); 411 void destroySwapChainImages(DisplayVk *displayVk); 412 angle::Result prepareForAcquireNextSwapchainImage(const gl::Context *context, 413 bool forceSwapchainRecreate); 414 // This method calls vkAcquireNextImageKHR() to acquire the next swapchain image. It is called 415 // when the swapchain is initially created and when present() finds the swapchain out of date. 416 // Otherwise, it is scheduled to be called later by deferAcquireNextImage(). 417 VkResult acquireNextSwapchainImage(vk::Context *context); 418 // Process the result of vkAcquireNextImageKHR. 419 VkResult postProcessUnlockedAcquire(vk::Context *context); 420 // This method is called when a swapchain image is presented. It schedules 421 // acquireNextSwapchainImage() to be called later. 422 void deferAcquireNextImage(); 423 bool skipAcquireNextSwapchainImageForSharedPresentMode() const; 424 425 angle::Result computePresentOutOfDate(vk::Context *context, 426 VkResult result, 427 bool *presentOutOfDate); 428 angle::Result prePresentSubmit(ContextVk *contextVk, const vk::Semaphore &presentSemaphore); 429 angle::Result present(ContextVk *contextVk, 430 const EGLint *rects, 431 EGLint n_rects, 432 const void *pNextChain, 433 bool *presentOutOfDate); 434 435 angle::Result cleanUpPresentHistory(vk::Context *context); 436 angle::Result cleanUpOldSwapchains(vk::Context *context); 437 438 // Throttle the CPU such that application's logic and command buffer recording doesn't get more 439 // than two frame ahead of the frame being rendered (and three frames ahead of the one being 440 // presented). This is a failsafe, as the application should ensure command buffer recording is 441 // not ahead of the frame being rendered by *one* frame. 442 angle::Result throttleCPU(vk::Context *context, const QueueSerial ¤tSubmitSerial); 443 444 // Finish all GPU operations on the surface 445 angle::Result finish(vk::Context *context); 446 447 void updateOverlay(ContextVk *contextVk) const; 448 bool overlayHasEnabledWidget(ContextVk *contextVk) const; 449 angle::Result drawOverlay(ContextVk *contextVk, impl::SwapchainImage *image) const; 450 451 bool isMultiSampled() const; 452 453 bool supportsPresentMode(vk::PresentMode presentMode) const; 454 455 bool updateColorSpace(DisplayVk *displayVk); 456 457 angle::FormatID getIntendedFormatID(vk::Renderer *renderer); 458 angle::FormatID getActualFormatID(vk::Renderer *renderer); 459 460 std::vector<vk::PresentMode> mPresentModes; 461 462 VkSwapchainKHR mSwapchain; // Current swapchain (same as last created or NULL) 463 VkSwapchainKHR mLastSwapchain; // Last created non retired swapchain (or NULL if retired) 464 vk::SwapchainStatus mSwapchainStatus; 465 // Cached information used to recreate swapchains. 466 vk::PresentMode mSwapchainPresentMode; // Current swapchain mode 467 vk::PresentMode mDesiredSwapchainPresentMode; // Desired mode set through setSwapInterval() 468 uint32_t mMinImageCount; 469 VkSurfaceTransformFlagBitsKHR mPreTransform; 470 VkSurfaceTransformFlagBitsKHR mEmulatedPreTransform; 471 VkCompositeAlphaFlagBitsKHR mCompositeAlpha; 472 VkColorSpaceKHR mSurfaceColorSpace; 473 474 // Present modes that are compatible with the current mode. If mDesiredSwapchainPresentMode is 475 // in this list, mode switch can happen without the need to recreate the swapchain. 476 // There are currently only 6 possible present modes but vector is bigger for a workaround. 477 static constexpr uint32_t kCompatiblePresentModesSize = 10; 478 angle::FixedVector<VkPresentModeKHR, kCompatiblePresentModesSize> mCompatiblePresentModes; 479 480 // A circular buffer that stores the serial of the submission fence of the context on every 481 // swap. The CPU is throttled by waiting for the 2nd previous serial to finish. This should 482 // normally be a no-op, as the application should pace itself to avoid input lag, and is 483 // implemented in ANGLE as a fail safe. Removing this throttling requires untangling it from 484 // acquire semaphore recycling (see mAcquireImageSemaphores above) 485 angle::CircularBuffer<QueueSerial, impl::kSwapHistorySize> mSwapHistory; 486 487 // The previous swapchain which needs to be scheduled for destruction when appropriate. This 488 // will be done when the first image of the current swapchain is presented or when fences are 489 // signaled (when VK_EXT_swapchain_maintenance1 is supported). If there were older swapchains 490 // pending destruction when the swapchain is recreated, they will accumulate and be destroyed 491 // with the previous swapchain. 492 // 493 // Note that if the user resizes the window such that the swapchain is recreated every frame, 494 // this array can go grow indefinitely. 495 std::deque<impl::SwapchainCleanupData> mOldSwapchains; 496 497 std::vector<impl::SwapchainImage> mSwapchainImages; 498 std::vector<angle::ObserverBinding> mSwapchainImageBindings; 499 uint32_t mCurrentSwapchainImageIndex; 500 501 // There is no direct signal from Vulkan regarding when a Present semaphore can be be reused. 502 // During window resizing when swapchains are recreated every frame, the number of in-flight 503 // present semaphores can grow indefinitely. See doc/PresentSemaphores.md. 504 vk::Recycler<vk::Semaphore> mPresentSemaphoreRecycler; 505 // Fences are associated with present semaphores to know when they can be recycled. 506 vk::Recycler<vk::Fence> mPresentFenceRecycler; 507 508 // The presentation history, used to recycle semaphores and destroy old swapchains. 509 std::deque<impl::ImagePresentOperation> mPresentHistory; 510 511 // Depth/stencil image. Possibly multisampled. 512 vk::ImageHelper mDepthStencilImage; 513 vk::ImageViewHelper mDepthStencilImageViews; 514 angle::ObserverBinding mDepthStencilImageBinding; 515 516 // Multisample color image, view and framebuffer, if multisampling enabled. 517 vk::ImageHelper mColorImageMS; 518 vk::ImageViewHelper mColorImageMSViews; 519 angle::ObserverBinding mColorImageMSBinding; 520 vk::Framebuffer mFramebufferMS; 521 522 impl::ImageAcquireOperation mAcquireOperation; 523 524 // EGL_EXT_buffer_age: Track frame count. 525 uint64_t mFrameCount; 526 527 // EGL_KHR_lock_surface3 528 vk::BufferHelper mLockBufferHelper; 529 530 // EGL_KHR_partial_update 531 uint64_t mBufferAgeQueryFrameNumber; 532 533 // GL_EXT_shader_framebuffer_fetch 534 vk::FramebufferFetchMode mFramebufferFetchMode = vk::FramebufferFetchMode::None; 535 }; 536 537 } // namespace rx 538 539 #endif // LIBANGLE_RENDERER_VULKAN_SURFACEVK_H_ 540