impeller::AHBFrameSynchronizerVK Struct Reference

#include <ahb_swapchain_impl_vk.h>

Public Member Functions
	AHBFrameSynchronizerVK (const vk::Device &device)
	~AHBFrameSynchronizerVK ()
bool	IsValid () const
bool	WaitForFence (const vk::Device &device)

Public Attributes
vk::UniqueFence	acquire
bool	acquire_fence_pending = false
vk::UniqueSemaphore	render_ready = {}
std::shared_ptr< ExternalSemaphoreVK >	present_ready
std::shared_ptr< CommandBuffer >	final_cmd_buffer
bool	is_valid = false

Detailed Description

Definition at line 28 of file ahb_swapchain_impl_vk.h.

Constructor & Destructor Documentation

AHBFrameSynchronizerVK()

impeller::AHBFrameSynchronizerVK::AHBFrameSynchronizerVK ( const vk::Device &  device )

explicit

Definition at line 31 of file ahb_swapchain_impl_vk.cc.

                                                                     {
  auto acquire_res = device.createFenceUnique({});
  if (acquire_res.result != vk::Result::eSuccess) {
    VALIDATION_LOG << "Could not create synchronizer.";
    return;
  }
  acquire = std::move(acquire_res.value);
  is_valid = true;
}

References acquire, is_valid, and VALIDATION_LOG.

~AHBFrameSynchronizerVK()

impeller::AHBFrameSynchronizerVK::~AHBFrameSynchronizerVK ( )

default

Member Function Documentation

IsValid()

bool impeller::AHBFrameSynchronizerVK::IsValid

(

)

const

Definition at line 43 of file ahb_swapchain_impl_vk.cc.

                                           {
  return is_valid;
}

References is_valid.

WaitForFence()

bool impeller::AHBFrameSynchronizerVK::WaitForFence

(

const vk::Device &

device

)

Definition at line 47 of file ahb_swapchain_impl_vk.cc.

                                                                {
  if (!acquire_fence_pending) {
    return true;
  }
  if (auto result = device.waitForFences(
          *acquire,                             // fence
          true,                                 // wait all
          std::numeric_limits<uint64_t>::max()  // timeout (ns)
      );
      result != vk::Result::eSuccess) {
    VALIDATION_LOG << "Fence wait failed: " << vk::to_string(result);
    return false;
  }
  acquire_fence_pending = false;
  if (auto result = device.resetFences(*acquire);
      result != vk::Result::eSuccess) {
    VALIDATION_LOG << "Could not reset fence: " << vk::to_string(result);
    return false;
  }
  return true;
}

References acquire, acquire_fence_pending, and VALIDATION_LOG.

Member Data Documentation

acquire

vk::UniqueFence impeller::AHBFrameSynchronizerVK::acquire

Definition at line 29 of file ahb_swapchain_impl_vk.h.

Referenced by AHBFrameSynchronizerVK(), and WaitForFence().

acquire_fence_pending

bool impeller::AHBFrameSynchronizerVK::acquire_fence_pending = false

Definition at line 30 of file ahb_swapchain_impl_vk.h.

Referenced by WaitForFence().

final_cmd_buffer

std::shared_ptr<CommandBuffer> impeller::AHBFrameSynchronizerVK::final_cmd_buffer

Definition at line 33 of file ahb_swapchain_impl_vk.h.

is_valid

bool impeller::AHBFrameSynchronizerVK::is_valid = false

Definition at line 34 of file ahb_swapchain_impl_vk.h.

Referenced by AHBFrameSynchronizerVK(), and IsValid().

present_ready

std::shared_ptr<ExternalSemaphoreVK> impeller::AHBFrameSynchronizerVK::present_ready

Definition at line 32 of file ahb_swapchain_impl_vk.h.

render_ready

vk::UniqueSemaphore impeller::AHBFrameSynchronizerVK::render_ready = {}

Definition at line 31 of file ahb_swapchain_impl_vk.h.

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The documentation for this struct was generated from the following files:

• impeller/renderer/backend/vulkan/swapchain/ahb/ahb_swapchain_impl_vk.h
• impeller/renderer/backend/vulkan/swapchain/ahb/ahb_swapchain_impl_vk.cc