diff options
| -rw-r--r-- | vulkan/libvulkan/swapchain.cpp | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/vulkan/libvulkan/swapchain.cpp b/vulkan/libvulkan/swapchain.cpp index 5965953b38..af873065ff 100644 --- a/vulkan/libvulkan/swapchain.cpp +++ b/vulkan/libvulkan/swapchain.cpp @@ -877,6 +877,7 @@ VkResult GetPhysicalDeviceSurfaceCapabilities2KHR( int width, height; int transform_hint; int max_buffer_count; + int min_undequeued_buffers; if (surface == VK_NULL_HANDLE) { const InstanceData& instance_data = GetData(physicalDevice); ProcHook::Extension surfaceless = ProcHook::GOOGLE_surfaceless_query; @@ -929,17 +930,24 @@ VkResult GetPhysicalDeviceSurfaceCapabilities2KHR( return VK_ERROR_SURFACE_LOST_KHR; } + err = window->query(window, NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, + &min_undequeued_buffers); + if (err != android::OK) { + ALOGE("NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS query failed: %s (%d)", + strerror(-err), err); + return VK_ERROR_SURFACE_LOST_KHR; + } + if (pPresentMode && IsSharedPresentMode(pPresentMode->presentMode)) { capabilities->minImageCount = 1; capabilities->maxImageCount = 1; } else if (pPresentMode && pPresentMode->presentMode == VK_PRESENT_MODE_MAILBOX_KHR) { - // TODO: use undequeued buffer requirement for more precise bound - capabilities->minImageCount = std::min(max_buffer_count, 4); + capabilities->minImageCount = + std::min(max_buffer_count, min_undequeued_buffers + 2); capabilities->maxImageCount = static_cast<uint32_t>(max_buffer_count); } else { - // TODO: if we're able to, provide better bounds on the number of buffers - // for other modes as well. - capabilities->minImageCount = std::min(max_buffer_count, 3); + capabilities->minImageCount = + std::min(max_buffer_count, min_undequeued_buffers + 1); capabilities->maxImageCount = static_cast<uint32_t>(max_buffer_count); } } |