context.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/context.h"
 
#include <mutex>
#include <utility>
 
namespace impeller {
 
ImpellerContextFuture::ImpellerContextFuture(
    std::future<std::shared_ptr<impeller::Context>> context)
    : future_(std::move(context)) {}
 
std::shared_ptr<impeller::Context> ImpellerContextFuture::GetContext() {
  std::scoped_lock<std::mutex> lock(mutex_);
  if (!did_wait_ && future_.valid()) {
    context_ = future_.get();
    did_wait_ = true;
  }
  return context_;
}
 
Context::~Context() = default;
 
Context::Context(const Flags& flags) : flags_(flags) {}
 
bool Context::UpdateOffscreenLayerPixelFormat(PixelFormat format) {
  return false;
}
 
bool Context::EnqueueCommandBuffer(
    std::shared_ptr<CommandBuffer> command_buffer) {
  return GetCommandQueue()->Submit({std::move(command_buffer)}).ok();
}
 
bool Context::FlushCommandBuffers() {
  return true;
}
 
std::shared_ptr<const IdleWaiter> Context::GetIdleWaiter() const {
  return nullptr;
}
 
void Context::ResetThreadLocalState() const {
  // Nothing to do.
}
 
bool Context::AddTrackingFence(const std::shared_ptr<Texture>& texture) const {
  return false;
}
 
bool Context::SubmitOnscreen(std::shared_ptr<CommandBuffer> cmd_buffer) {
  return EnqueueCommandBuffer(std::move(cmd_buffer));
}
 
}  // namespace impeller