surface_context_vk.cc

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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#include "impeller/renderer/backend/vulkan/surface_context_vk.h"
 
#include "flutter/fml/trace_event.h"
#include "impeller/core/runtime_types.h"
#include "impeller/renderer/backend/vulkan/command_pool_vk.h"
#include "impeller/renderer/backend/vulkan/context_vk.h"
#include "impeller/renderer/backend/vulkan/swapchain/khr/khr_swapchain_vk.h"
#include "impeller/renderer/surface.h"
 
namespace impeller {
 
SurfaceContextVK::SurfaceContextVK(const std::shared_ptr<ContextVK>& parent)
    : Context(parent->GetFlags()), parent_(parent) {}
 
SurfaceContextVK::~SurfaceContextVK() = default;
 
Context::BackendType SurfaceContextVK::GetBackendType() const {
  return parent_->GetBackendType();
}
 
std::string SurfaceContextVK::DescribeGpuModel() const {
  return parent_->DescribeGpuModel();
}
 
bool SurfaceContextVK::IsValid() const {
  return parent_->IsValid();
}
 
std::shared_ptr<Allocator> SurfaceContextVK::GetResourceAllocator() const {
  return parent_->GetResourceAllocator();
}
 
std::shared_ptr<ShaderLibrary> SurfaceContextVK::GetShaderLibrary() const {
  return parent_->GetShaderLibrary();
}
 
std::shared_ptr<SamplerLibrary> SurfaceContextVK::GetSamplerLibrary() const {
  return parent_->GetSamplerLibrary();
}
 
std::shared_ptr<PipelineLibrary> SurfaceContextVK::GetPipelineLibrary() const {
  return parent_->GetPipelineLibrary();
}
 
std::shared_ptr<CommandBuffer> SurfaceContextVK::CreateCommandBuffer() const {
  return parent_->CreateCommandBuffer();
}
 
std::shared_ptr<CommandQueue> SurfaceContextVK::GetCommandQueue() const {
  return parent_->GetCommandQueue();
}
 
const std::shared_ptr<const Capabilities>& SurfaceContextVK::GetCapabilities()
    const {
  return parent_->GetCapabilities();
}
 
std::shared_ptr<const IdleWaiter> SurfaceContextVK::GetIdleWaiter() const {
  return parent_->GetIdleWaiter();
}
 
void SurfaceContextVK::Shutdown() {
  parent_->Shutdown();
}
 
bool SurfaceContextVK::SetWindowSurface(vk::UniqueSurfaceKHR surface,
                                        const ISize& size) {
  return SetSwapchain(SwapchainVK::Create(parent_, std::move(surface), size));
}
 
void SurfaceContextVK::TeardownSwapchain() {
  // When background the application, tear down the swapchain to release memory
  // from the images. When returning to the foreground, SetWindowSurface will be
  // called which will re-create the swapchain.
  swapchain_.reset();
}
 
bool SurfaceContextVK::SetSwapchain(std::shared_ptr<SwapchainVK> swapchain) {
  if (!swapchain || !swapchain->IsValid()) {
    VALIDATION_LOG << "Invalid swapchain.";
    return false;
  }
  swapchain_ = std::move(swapchain);
  return true;
}
 
std::unique_ptr<Surface> SurfaceContextVK::AcquireNextSurface() {
  TRACE_EVENT0("impeller", __FUNCTION__);
  auto surface = swapchain_ ? swapchain_->AcquireNextDrawable() : nullptr;
  if (!surface) {
    return nullptr;
  }
  MarkFrameEnd();
  return surface;
}
 
void SurfaceContextVK::MarkFrameEnd() {
  if (auto pipeline_library = parent_->GetPipelineLibrary()) {
    impeller::PipelineLibraryVK::Cast(*pipeline_library)
        .DidAcquireSurfaceFrame();
  }
  parent_->DisposeThreadLocalCachedResources();
  parent_->GetResourceAllocator()->DebugTraceMemoryStatistics();
}
 
void SurfaceContextVK::UpdateSurfaceSize(const ISize& size) const {
  swapchain_->UpdateSurfaceSize(size);
}
 
const vk::Device& SurfaceContextVK::GetDevice() const {
  return parent_->GetDevice();
}
 
void SurfaceContextVK::InitializeCommonlyUsedShadersIfNeeded() const {
  parent_->InitializeCommonlyUsedShadersIfNeeded();
}
 
void SurfaceContextVK::DisposeThreadLocalCachedResources() {
  parent_->DisposeThreadLocalCachedResources();
}
 
const std::shared_ptr<ContextVK>& SurfaceContextVK::GetParent() const {
  return parent_;
}
 
bool SurfaceContextVK::EnqueueCommandBuffer(
    std::shared_ptr<CommandBuffer> command_buffer) {
  return parent_->EnqueueCommandBuffer(std::move(command_buffer));
}
 
bool SurfaceContextVK::FlushCommandBuffers() {
  return parent_->FlushCommandBuffers();
}
 
bool SurfaceContextVK::SubmitOnscreen(
    std::shared_ptr<CommandBuffer> cmd_buffer) {
  swapchain_->AddFinalCommandBuffer(std::move(cmd_buffer));
  return true;
}
 
RuntimeStageBackend SurfaceContextVK::GetRuntimeStageBackend() const {
  return parent_->GetRuntimeStageBackend();
}
 
}  // namespace impeller