swapchain.cpp revision fe2662d9e32d994346e7705c54043d8eb90a3734
1/* 2 * Copyright 2015 The Android Open Source Project 3 * 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 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 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. 15 */ 16 17#include <algorithm> 18#include <memory> 19 20#include <gui/BufferQueue.h> 21#include <log/log.h> 22#include <sync/sync.h> 23 24#include "loader.h" 25 26using namespace vulkan; 27 28// TODO(jessehall): Currently we don't have a good error code for when a native 29// window operation fails. Just returning INITIALIZATION_FAILED for now. Later 30// versions (post SDK 0.9) of the API/extension have a better error code. 31// When updating to that version, audit all error returns. 32 33namespace { 34 35// ---------------------------------------------------------------------------- 36// These functions/classes form an adaptor that allows objects to be refcounted 37// by both android::sp<> and std::shared_ptr<> simultaneously, and delegates 38// allocation of the shared_ptr<> control structure to VkAllocationCallbacks. 39// The 40// platform holds a reference to the ANativeWindow using its embedded reference 41// count, and the ANativeWindow implementation holds references to the 42// ANativeWindowBuffers using their embedded reference counts, so the 43// shared_ptr *must* cooperate with these and hold at least one reference to 44// the object using the embedded reference count. 45 46template <typename T> 47struct NativeBaseDeleter { 48 void operator()(T* obj) { obj->common.decRef(&obj->common); } 49}; 50 51template <typename Host> 52struct AllocScope {}; 53 54template <> 55struct AllocScope<VkInstance> { 56 static const VkSystemAllocationScope kScope = 57 VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE; 58}; 59 60template <> 61struct AllocScope<VkDevice> { 62 static const VkSystemAllocationScope kScope = 63 VK_SYSTEM_ALLOCATION_SCOPE_DEVICE; 64}; 65 66template <typename T> 67class VulkanAllocator { 68 public: 69 typedef T value_type; 70 71 VulkanAllocator(const VkAllocationCallbacks& allocator, 72 VkSystemAllocationScope scope) 73 : allocator_(allocator), scope_(scope) {} 74 75 template <typename U> 76 explicit VulkanAllocator(const VulkanAllocator<U>& other) 77 : allocator_(other.allocator_), scope_(other.scope_) {} 78 79 T* allocate(size_t n) const { 80 T* p = static_cast<T*>(allocator_.pfnAllocation( 81 allocator_.pUserData, n * sizeof(T), alignof(T), scope_)); 82 if (!p) 83 throw std::bad_alloc(); 84 return p; 85 } 86 void deallocate(T* p, size_t) const noexcept { 87 return allocator_.pfnFree(allocator_.pUserData, p); 88 } 89 90 private: 91 template <typename U> 92 friend class VulkanAllocator; 93 const VkAllocationCallbacks& allocator_; 94 const VkSystemAllocationScope scope_; 95}; 96 97template <typename T, typename Host> 98std::shared_ptr<T> InitSharedPtr(Host host, T* obj) { 99 try { 100 obj->common.incRef(&obj->common); 101 return std::shared_ptr<T>( 102 obj, NativeBaseDeleter<T>(), 103 VulkanAllocator<T>(*GetAllocator(host), AllocScope<Host>::kScope)); 104 } catch (std::bad_alloc&) { 105 obj->common.decRef(&obj->common); 106 return nullptr; 107 } 108} 109 110// ---------------------------------------------------------------------------- 111 112struct Surface { 113 std::shared_ptr<ANativeWindow> window; 114}; 115 116VkSurfaceKHR HandleFromSurface(Surface* surface) { 117 return VkSurfaceKHR(reinterpret_cast<uint64_t>(surface)); 118} 119 120Surface* SurfaceFromHandle(VkSurfaceKHR handle) { 121 return reinterpret_cast<Surface*>(handle); 122} 123 124struct Swapchain { 125 Swapchain(Surface& surface_, uint32_t num_images_) 126 : surface(surface_), num_images(num_images_) {} 127 128 Surface& surface; 129 uint32_t num_images; 130 131 struct Image { 132 Image() : image(VK_NULL_HANDLE), dequeue_fence(-1), dequeued(false) {} 133 VkImage image; 134 std::shared_ptr<ANativeWindowBuffer> buffer; 135 // The fence is only valid when the buffer is dequeued, and should be 136 // -1 any other time. When valid, we own the fd, and must ensure it is 137 // closed: either by closing it explicitly when queueing the buffer, 138 // or by passing ownership e.g. to ANativeWindow::cancelBuffer(). 139 int dequeue_fence; 140 bool dequeued; 141 } images[android::BufferQueue::NUM_BUFFER_SLOTS]; 142}; 143 144VkSwapchainKHR HandleFromSwapchain(Swapchain* swapchain) { 145 return VkSwapchainKHR(reinterpret_cast<uint64_t>(swapchain)); 146} 147 148Swapchain* SwapchainFromHandle(VkSwapchainKHR handle) { 149 return reinterpret_cast<Swapchain*>(handle); 150} 151 152} // anonymous namespace 153 154namespace vulkan { 155 156VKAPI_ATTR 157VkResult CreateAndroidSurfaceKHR_Bottom( 158 VkInstance instance, 159 const VkAndroidSurfaceCreateInfoKHR* pCreateInfo, 160 const VkAllocationCallbacks* allocator, 161 VkSurfaceKHR* out_surface) { 162 if (!allocator) 163 allocator = GetAllocator(instance); 164 void* mem = allocator->pfnAllocation(allocator->pUserData, sizeof(Surface), 165 alignof(Surface), 166 VK_SYSTEM_ALLOCATION_SCOPE_OBJECT); 167 if (!mem) 168 return VK_ERROR_OUT_OF_HOST_MEMORY; 169 Surface* surface = new (mem) Surface; 170 171 surface->window = InitSharedPtr(instance, pCreateInfo->window); 172 if (!surface->window) { 173 ALOGE("surface creation failed: out of memory"); 174 surface->~Surface(); 175 allocator->pfnFree(allocator->pUserData, surface); 176 return VK_ERROR_OUT_OF_HOST_MEMORY; 177 } 178 179 // TODO(jessehall): Create and use NATIVE_WINDOW_API_VULKAN. 180 int err = 181 native_window_api_connect(surface->window.get(), NATIVE_WINDOW_API_EGL); 182 if (err != 0) { 183 // TODO(jessehall): Improve error reporting. Can we enumerate possible 184 // errors and translate them to valid Vulkan result codes? 185 ALOGE("native_window_api_connect() failed: %s (%d)", strerror(-err), 186 err); 187 surface->~Surface(); 188 allocator->pfnFree(allocator->pUserData, surface); 189 return VK_ERROR_INITIALIZATION_FAILED; 190 } 191 192 *out_surface = HandleFromSurface(surface); 193 return VK_SUCCESS; 194} 195 196VKAPI_ATTR 197void DestroySurfaceKHR_Bottom(VkInstance instance, 198 VkSurfaceKHR surface_handle, 199 const VkAllocationCallbacks* allocator) { 200 Surface* surface = SurfaceFromHandle(surface_handle); 201 if (!surface) 202 return; 203 native_window_api_disconnect(surface->window.get(), NATIVE_WINDOW_API_EGL); 204 surface->~Surface(); 205 if (!allocator) 206 allocator = GetAllocator(instance); 207 allocator->pfnFree(allocator->pUserData, surface); 208} 209 210VKAPI_ATTR 211VkResult GetPhysicalDeviceSurfaceSupportKHR_Bottom(VkPhysicalDevice /*pdev*/, 212 uint32_t /*queue_family*/, 213 VkSurfaceKHR /*surface*/, 214 VkBool32* supported) { 215 *supported = VK_TRUE; 216 return VK_SUCCESS; 217} 218 219VKAPI_ATTR 220VkResult GetPhysicalDeviceSurfaceCapabilitiesKHR_Bottom( 221 VkPhysicalDevice /*pdev*/, 222 VkSurfaceKHR surface, 223 VkSurfaceCapabilitiesKHR* capabilities) { 224 int err; 225 ANativeWindow* window = SurfaceFromHandle(surface)->window.get(); 226 227 int width, height; 228 err = window->query(window, NATIVE_WINDOW_DEFAULT_WIDTH, &width); 229 if (err != 0) { 230 ALOGE("NATIVE_WINDOW_DEFAULT_WIDTH query failed: %s (%d)", 231 strerror(-err), err); 232 return VK_ERROR_INITIALIZATION_FAILED; 233 } 234 err = window->query(window, NATIVE_WINDOW_DEFAULT_HEIGHT, &height); 235 if (err != 0) { 236 ALOGE("NATIVE_WINDOW_DEFAULT_WIDTH query failed: %s (%d)", 237 strerror(-err), err); 238 return VK_ERROR_INITIALIZATION_FAILED; 239 } 240 241 // TODO(jessehall): Figure out what the min/max values should be. 242 capabilities->minImageCount = 2; 243 capabilities->maxImageCount = 3; 244 245 capabilities->currentExtent = 246 VkExtent2D{static_cast<uint32_t>(width), static_cast<uint32_t>(height)}; 247 248 // TODO(jessehall): Figure out what the max extent should be. Maximum 249 // texture dimension maybe? 250 capabilities->minImageExtent = VkExtent2D{1, 1}; 251 capabilities->maxImageExtent = VkExtent2D{4096, 4096}; 252 253 capabilities->maxImageArrayLayers = 1; 254 255 // TODO(jessehall): We can support all transforms, fix this once 256 // implemented. 257 capabilities->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR; 258 259 // TODO(jessehall): Implement based on NATIVE_WINDOW_TRANSFORM_HINT. 260 capabilities->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR; 261 262 // On Android, window composition is a WindowManager property, not something 263 // associated with the bufferqueue. It can't be changed from here. 264 capabilities->supportedCompositeAlpha = VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR; 265 266 // TODO(jessehall): I think these are right, but haven't thought hard about 267 // it. Do we need to query the driver for support of any of these? 268 // Currently not included: 269 // - VK_IMAGE_USAGE_GENERAL: maybe? does this imply cpu mappable? 270 // - VK_IMAGE_USAGE_DEPTH_STENCIL_BIT: definitely not 271 // - VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT: definitely not 272 capabilities->supportedUsageFlags = 273 VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT | 274 VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_STORAGE_BIT | 275 VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | 276 VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT; 277 278 return VK_SUCCESS; 279} 280 281VKAPI_ATTR 282VkResult GetPhysicalDeviceSurfaceFormatsKHR_Bottom( 283 VkPhysicalDevice /*pdev*/, 284 VkSurfaceKHR /*surface*/, 285 uint32_t* count, 286 VkSurfaceFormatKHR* formats) { 287 // TODO(jessehall): Fill out the set of supported formats. Longer term, add 288 // a new gralloc method to query whether a (format, usage) pair is 289 // supported, and check that for each gralloc format that corresponds to a 290 // Vulkan format. Shorter term, just add a few more formats to the ones 291 // hardcoded below. 292 293 const VkSurfaceFormatKHR kFormats[] = { 294 {VK_FORMAT_R8G8B8A8_UNORM, VK_COLORSPACE_SRGB_NONLINEAR_KHR}, 295 {VK_FORMAT_R8G8B8A8_SRGB, VK_COLORSPACE_SRGB_NONLINEAR_KHR}, 296 }; 297 const uint32_t kNumFormats = sizeof(kFormats) / sizeof(kFormats[0]); 298 299 VkResult result = VK_SUCCESS; 300 if (formats) { 301 if (*count < kNumFormats) 302 result = VK_INCOMPLETE; 303 std::copy(kFormats, kFormats + std::min(*count, kNumFormats), formats); 304 } 305 *count = kNumFormats; 306 return result; 307} 308 309VKAPI_ATTR 310VkResult GetPhysicalDeviceSurfacePresentModesKHR_Bottom( 311 VkPhysicalDevice /*pdev*/, 312 VkSurfaceKHR /*surface*/, 313 uint32_t* count, 314 VkPresentModeKHR* modes) { 315 const VkPresentModeKHR kModes[] = { 316 VK_PRESENT_MODE_MAILBOX_KHR, VK_PRESENT_MODE_FIFO_KHR, 317 }; 318 const uint32_t kNumModes = sizeof(kModes) / sizeof(kModes[0]); 319 320 VkResult result = VK_SUCCESS; 321 if (modes) { 322 if (*count < kNumModes) 323 result = VK_INCOMPLETE; 324 std::copy(kModes, kModes + std::min(*count, kNumModes), modes); 325 } 326 *count = kNumModes; 327 return result; 328} 329 330VKAPI_ATTR 331VkResult CreateSwapchainKHR_Bottom(VkDevice device, 332 const VkSwapchainCreateInfoKHR* create_info, 333 const VkAllocationCallbacks* allocator, 334 VkSwapchainKHR* swapchain_handle) { 335 int err; 336 VkResult result = VK_SUCCESS; 337 338 if (!allocator) 339 allocator = GetAllocator(device); 340 341 ALOGV_IF(create_info->imageArrayLayers != 1, 342 "Swapchain imageArrayLayers (%u) != 1 not supported", 343 create_info->imageArrayLayers); 344 345 ALOGE_IF(create_info->imageFormat != VK_FORMAT_R8G8B8A8_UNORM, 346 "swapchain formats other than R8G8B8A8_UNORM not yet implemented"); 347 ALOGE_IF(create_info->imageColorSpace != VK_COLORSPACE_SRGB_NONLINEAR_KHR, 348 "color spaces other than SRGB_NONLINEAR not yet implemented"); 349 ALOGE_IF(create_info->oldSwapchain, 350 "swapchain re-creation not yet implemented"); 351 ALOGE_IF(create_info->preTransform != VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR, 352 "swapchain preTransform not yet implemented"); 353 ALOGE_IF(create_info->presentMode != VK_PRESENT_MODE_FIFO_KHR, 354 "present modes other than FIFO are not yet implemented"); 355 356 // -- Configure the native window -- 357 358 Surface& surface = *SurfaceFromHandle(create_info->surface); 359 const DriverDispatchTable& dispatch = GetDriverDispatch(device); 360 361 err = native_window_set_buffers_dimensions( 362 surface.window.get(), static_cast<int>(create_info->imageExtent.width), 363 static_cast<int>(create_info->imageExtent.height)); 364 if (err != 0) { 365 // TODO(jessehall): Improve error reporting. Can we enumerate possible 366 // errors and translate them to valid Vulkan result codes? 367 ALOGE("native_window_set_buffers_dimensions(%d,%d) failed: %s (%d)", 368 create_info->imageExtent.width, create_info->imageExtent.height, 369 strerror(-err), err); 370 return VK_ERROR_INITIALIZATION_FAILED; 371 } 372 373 err = native_window_set_scaling_mode( 374 surface.window.get(), NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW); 375 if (err != 0) { 376 // TODO(jessehall): Improve error reporting. Can we enumerate possible 377 // errors and translate them to valid Vulkan result codes? 378 ALOGE("native_window_set_scaling_mode(SCALE_TO_WINDOW) failed: %s (%d)", 379 strerror(-err), err); 380 return VK_ERROR_INITIALIZATION_FAILED; 381 } 382 383 uint32_t min_undequeued_buffers; 384 err = surface.window->query( 385 surface.window.get(), NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, 386 reinterpret_cast<int*>(&min_undequeued_buffers)); 387 if (err != 0) { 388 // TODO(jessehall): Improve error reporting. Can we enumerate possible 389 // errors and translate them to valid Vulkan result codes? 390 ALOGE("window->query failed: %s (%d)", strerror(-err), err); 391 return VK_ERROR_INITIALIZATION_FAILED; 392 } 393 uint32_t num_images = 394 (create_info->minImageCount - 1) + min_undequeued_buffers; 395 err = native_window_set_buffer_count(surface.window.get(), num_images); 396 if (err != 0) { 397 // TODO(jessehall): Improve error reporting. Can we enumerate possible 398 // errors and translate them to valid Vulkan result codes? 399 ALOGE("native_window_set_buffer_count failed: %s (%d)", strerror(-err), 400 err); 401 return VK_ERROR_INITIALIZATION_FAILED; 402 } 403 404 int gralloc_usage = 0; 405 // TODO(jessehall): Remove conditional once all drivers have been updated 406 if (dispatch.GetSwapchainGrallocUsageANDROID) { 407 result = dispatch.GetSwapchainGrallocUsageANDROID( 408 device, create_info->imageFormat, create_info->imageUsage, 409 &gralloc_usage); 410 if (result != VK_SUCCESS) { 411 ALOGE("vkGetSwapchainGrallocUsageANDROID failed: %d", result); 412 return VK_ERROR_INITIALIZATION_FAILED; 413 } 414 } else { 415 gralloc_usage = GRALLOC_USAGE_HW_RENDER | GRALLOC_USAGE_HW_TEXTURE; 416 } 417 err = native_window_set_usage(surface.window.get(), gralloc_usage); 418 if (err != 0) { 419 // TODO(jessehall): Improve error reporting. Can we enumerate possible 420 // errors and translate them to valid Vulkan result codes? 421 ALOGE("native_window_set_usage failed: %s (%d)", strerror(-err), err); 422 return VK_ERROR_INITIALIZATION_FAILED; 423 } 424 425 // -- Allocate our Swapchain object -- 426 // After this point, we must deallocate the swapchain on error. 427 428 void* mem = allocator->pfnAllocation(allocator->pUserData, 429 sizeof(Swapchain), alignof(Swapchain), 430 VK_SYSTEM_ALLOCATION_SCOPE_OBJECT); 431 if (!mem) 432 return VK_ERROR_OUT_OF_HOST_MEMORY; 433 Swapchain* swapchain = new (mem) Swapchain(surface, num_images); 434 435 // -- Dequeue all buffers and create a VkImage for each -- 436 // Any failures during or after this must cancel the dequeued buffers. 437 438 VkNativeBufferANDROID image_native_buffer = { 439#pragma clang diagnostic push 440#pragma clang diagnostic ignored "-Wold-style-cast" 441 .sType = VK_STRUCTURE_TYPE_NATIVE_BUFFER_ANDROID, 442#pragma clang diagnostic pop 443 .pNext = nullptr, 444 }; 445 VkImageCreateInfo image_create = { 446 .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO, 447 .pNext = &image_native_buffer, 448 .imageType = VK_IMAGE_TYPE_2D, 449 .format = VK_FORMAT_R8G8B8A8_UNORM, // TODO(jessehall) 450 .extent = {0, 0, 1}, 451 .mipLevels = 1, 452 .arrayLayers = 1, 453 .samples = VK_SAMPLE_COUNT_1_BIT, 454 .tiling = VK_IMAGE_TILING_OPTIMAL, 455 .usage = create_info->imageUsage, 456 .flags = 0, 457 .sharingMode = create_info->imageSharingMode, 458 .queueFamilyIndexCount = create_info->queueFamilyIndexCount, 459 .pQueueFamilyIndices = create_info->pQueueFamilyIndices, 460 }; 461 462 for (uint32_t i = 0; i < num_images; i++) { 463 Swapchain::Image& img = swapchain->images[i]; 464 465 ANativeWindowBuffer* buffer; 466 err = surface.window->dequeueBuffer(surface.window.get(), &buffer, 467 &img.dequeue_fence); 468 if (err != 0) { 469 // TODO(jessehall): Improve error reporting. Can we enumerate 470 // possible errors and translate them to valid Vulkan result codes? 471 ALOGE("dequeueBuffer[%u] failed: %s (%d)", i, strerror(-err), err); 472 result = VK_ERROR_INITIALIZATION_FAILED; 473 break; 474 } 475 img.buffer = InitSharedPtr(device, buffer); 476 if (!img.buffer) { 477 ALOGE("swapchain creation failed: out of memory"); 478 surface.window->cancelBuffer(surface.window.get(), buffer, 479 img.dequeue_fence); 480 result = VK_ERROR_OUT_OF_HOST_MEMORY; 481 break; 482 } 483 img.dequeued = true; 484 485 image_create.extent = 486 VkExtent3D{static_cast<uint32_t>(img.buffer->width), 487 static_cast<uint32_t>(img.buffer->height), 488 1}; 489 image_native_buffer.handle = img.buffer->handle; 490 image_native_buffer.stride = img.buffer->stride; 491 image_native_buffer.format = img.buffer->format; 492 image_native_buffer.usage = img.buffer->usage; 493 494 result = 495 dispatch.CreateImage(device, &image_create, nullptr, &img.image); 496 if (result != VK_SUCCESS) { 497 ALOGD("vkCreateImage w/ native buffer failed: %u", result); 498 break; 499 } 500 } 501 502 // -- Cancel all buffers, returning them to the queue -- 503 // If an error occurred before, also destroy the VkImage and release the 504 // buffer reference. Otherwise, we retain a strong reference to the buffer. 505 // 506 // TODO(jessehall): The error path here is the same as DestroySwapchain, 507 // but not the non-error path. Should refactor/unify. 508 for (uint32_t i = 0; i < num_images; i++) { 509 Swapchain::Image& img = swapchain->images[i]; 510 if (img.dequeued) { 511 surface.window->cancelBuffer(surface.window.get(), img.buffer.get(), 512 img.dequeue_fence); 513 img.dequeue_fence = -1; 514 img.dequeued = false; 515 } 516 if (result != VK_SUCCESS) { 517 if (img.image) 518 dispatch.DestroyImage(device, img.image, nullptr); 519 } 520 } 521 522 if (result != VK_SUCCESS) { 523 swapchain->~Swapchain(); 524 allocator->pfnFree(allocator->pUserData, swapchain); 525 return result; 526 } 527 528 *swapchain_handle = HandleFromSwapchain(swapchain); 529 return VK_SUCCESS; 530} 531 532VKAPI_ATTR 533void DestroySwapchainKHR_Bottom(VkDevice device, 534 VkSwapchainKHR swapchain_handle, 535 const VkAllocationCallbacks* allocator) { 536 const DriverDispatchTable& dispatch = GetDriverDispatch(device); 537 Swapchain* swapchain = SwapchainFromHandle(swapchain_handle); 538 const std::shared_ptr<ANativeWindow>& window = swapchain->surface.window; 539 540 for (uint32_t i = 0; i < swapchain->num_images; i++) { 541 Swapchain::Image& img = swapchain->images[i]; 542 if (img.dequeued) { 543 window->cancelBuffer(window.get(), img.buffer.get(), 544 img.dequeue_fence); 545 img.dequeue_fence = -1; 546 img.dequeued = false; 547 } 548 if (img.image) { 549 dispatch.DestroyImage(device, img.image, nullptr); 550 } 551 } 552 553 if (!allocator) 554 allocator = GetAllocator(device); 555 swapchain->~Swapchain(); 556 allocator->pfnFree(allocator->pUserData, swapchain); 557} 558 559VKAPI_ATTR 560VkResult GetSwapchainImagesKHR_Bottom(VkDevice, 561 VkSwapchainKHR swapchain_handle, 562 uint32_t* count, 563 VkImage* images) { 564 Swapchain& swapchain = *SwapchainFromHandle(swapchain_handle); 565 VkResult result = VK_SUCCESS; 566 if (images) { 567 uint32_t n = swapchain.num_images; 568 if (*count < swapchain.num_images) { 569 n = *count; 570 result = VK_INCOMPLETE; 571 } 572 for (uint32_t i = 0; i < n; i++) 573 images[i] = swapchain.images[i].image; 574 } 575 *count = swapchain.num_images; 576 return result; 577} 578 579VKAPI_ATTR 580VkResult AcquireNextImageKHR_Bottom(VkDevice device, 581 VkSwapchainKHR swapchain_handle, 582 uint64_t timeout, 583 VkSemaphore semaphore, 584 VkFence vk_fence, 585 uint32_t* image_index) { 586 Swapchain& swapchain = *SwapchainFromHandle(swapchain_handle); 587 ANativeWindow* window = swapchain.surface.window.get(); 588 VkResult result; 589 int err; 590 591 ALOGW_IF( 592 timeout != UINT64_MAX, 593 "vkAcquireNextImageKHR: non-infinite timeouts not yet implemented"); 594 595 ANativeWindowBuffer* buffer; 596 int fence_fd; 597 err = window->dequeueBuffer(window, &buffer, &fence_fd); 598 if (err != 0) { 599 // TODO(jessehall): Improve error reporting. Can we enumerate possible 600 // errors and translate them to valid Vulkan result codes? 601 ALOGE("dequeueBuffer failed: %s (%d)", strerror(-err), err); 602 return VK_ERROR_INITIALIZATION_FAILED; 603 } 604 605 uint32_t idx; 606 for (idx = 0; idx < swapchain.num_images; idx++) { 607 if (swapchain.images[idx].buffer.get() == buffer) { 608 swapchain.images[idx].dequeued = true; 609 swapchain.images[idx].dequeue_fence = fence_fd; 610 break; 611 } 612 } 613 if (idx == swapchain.num_images) { 614 ALOGE("dequeueBuffer returned unrecognized buffer"); 615 window->cancelBuffer(window, buffer, fence_fd); 616 return VK_ERROR_OUT_OF_DATE_KHR; 617 } 618 619 int fence_clone = -1; 620 if (fence_fd != -1) { 621 fence_clone = dup(fence_fd); 622 if (fence_clone == -1) { 623 ALOGE("dup(fence) failed, stalling until signalled: %s (%d)", 624 strerror(errno), errno); 625 sync_wait(fence_fd, -1 /* forever */); 626 } 627 } 628 629 result = GetDriverDispatch(device).AcquireImageANDROID( 630 device, swapchain.images[idx].image, fence_clone, semaphore, vk_fence); 631 if (result != VK_SUCCESS) { 632 // NOTE: we're relying on AcquireImageANDROID to close fence_clone, 633 // even if the call fails. We could close it ourselves on failure, but 634 // that would create a race condition if the driver closes it on a 635 // failure path: some other thread might create an fd with the same 636 // number between the time the driver closes it and the time we close 637 // it. We must assume one of: the driver *always* closes it even on 638 // failure, or *never* closes it on failure. 639 window->cancelBuffer(window, buffer, fence_fd); 640 swapchain.images[idx].dequeued = false; 641 swapchain.images[idx].dequeue_fence = -1; 642 return result; 643 } 644 645 *image_index = idx; 646 return VK_SUCCESS; 647} 648 649VKAPI_ATTR 650VkResult QueuePresentKHR_Bottom(VkQueue queue, 651 const VkPresentInfoKHR* present_info) { 652 ALOGV_IF(present_info->sType != VK_STRUCTURE_TYPE_PRESENT_INFO_KHR, 653 "vkQueuePresentKHR: invalid VkPresentInfoKHR structure type %d", 654 present_info->sType); 655 ALOGV_IF(present_info->pNext, "VkPresentInfo::pNext != NULL"); 656 657 const DriverDispatchTable& dispatch = GetDriverDispatch(queue); 658 VkResult final_result = VK_SUCCESS; 659 for (uint32_t sc = 0; sc < present_info->swapchainCount; sc++) { 660 Swapchain& swapchain = 661 *SwapchainFromHandle(present_info->pSwapchains[sc]); 662 ANativeWindow* window = swapchain.surface.window.get(); 663 uint32_t image_idx = present_info->pImageIndices[sc]; 664 Swapchain::Image& img = swapchain.images[image_idx]; 665 VkResult result; 666 int err; 667 668 int fence = -1; 669 result = dispatch.QueueSignalReleaseImageANDROID( 670 queue, present_info->waitSemaphoreCount, 671 present_info->pWaitSemaphores, img.image, &fence); 672 if (result != VK_SUCCESS) { 673 ALOGE("QueueSignalReleaseImageANDROID failed: %d", result); 674 if (present_info->pResults) 675 present_info->pResults[sc] = result; 676 if (final_result == VK_SUCCESS) 677 final_result = result; 678 // TODO(jessehall): What happens to the buffer here? Does the app 679 // still own it or not, i.e. should we cancel the buffer? Hard to 680 // do correctly without synchronizing, though I guess we could wait 681 // for the queue to idle. 682 continue; 683 } 684 685 err = window->queueBuffer(window, img.buffer.get(), fence); 686 if (err != 0) { 687 // TODO(jessehall): What now? We should probably cancel the buffer, 688 // I guess? 689 ALOGE("queueBuffer failed: %s (%d)", strerror(-err), err); 690 if (present_info->pResults) 691 present_info->pResults[sc] = result; 692 if (final_result == VK_SUCCESS) 693 final_result = VK_ERROR_INITIALIZATION_FAILED; 694 continue; 695 } 696 697 if (img.dequeue_fence != -1) { 698 close(img.dequeue_fence); 699 img.dequeue_fence = -1; 700 } 701 img.dequeued = false; 702 703 if (present_info->pResults) 704 present_info->pResults[sc] = VK_SUCCESS; 705 } 706 707 return final_result; 708} 709 710} // namespace vulkan 711