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vulkan_backbuffer.cc
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vulkan_backbuffer.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 "vulkan_backbuffer.h"
#include <limits>
#include "flutter/vulkan/procs/vulkan_proc_table.h"
#include "third_party/skia/include/gpu/vk/GrVkTypes.h"
#include "vulkan/vulkan.h"
namespace vulkan {
VulkanBackbuffer::VulkanBackbuffer(const VulkanProcTable& p_vk,
const VulkanHandle<VkDevice>& device,
const VulkanHandle<VkCommandPool>& pool)
: vk(p_vk),
device_(device),
usage_command_buffer_(p_vk, device, pool),
render_command_buffer_(p_vk, device, pool),
valid_(false) {
if (!usage_command_buffer_.IsValid() || !render_command_buffer_.IsValid()) {
FML_DLOG(INFO) << "Command buffers were not valid.";
return;
}
if (!CreateSemaphores()) {
FML_DLOG(INFO) << "Could not create semaphores.";
return;
}
if (!CreateFences()) {
FML_DLOG(INFO) << "Could not create fences.";
return;
}
valid_ = true;
}
VulkanBackbuffer::~VulkanBackbuffer() {
FML_ALLOW_UNUSED_LOCAL(WaitFences());
}
bool VulkanBackbuffer::IsValid() const {
return valid_;
}
bool VulkanBackbuffer::CreateSemaphores() {
const VkSemaphoreCreateInfo create_info = {
.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO,
.pNext = nullptr,
.flags = 0,
};
auto semaphore_collect = [this](VkSemaphore semaphore) {
vk.DestroySemaphore(device_, semaphore, nullptr);
};
for (size_t i = 0; i < semaphores_.size(); i++) {
VkSemaphore semaphore = VK_NULL_HANDLE;
if (VK_CALL_LOG_ERROR(vk.CreateSemaphore(device_, &create_info, nullptr,
&semaphore)) != VK_SUCCESS) {
return false;
}
semaphores_[i] = VulkanHandle<VkSemaphore>{semaphore, semaphore_collect};
}
return true;
}
bool VulkanBackbuffer::CreateFences() {
const VkFenceCreateInfo create_info = {
.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,
.pNext = nullptr,
.flags = VK_FENCE_CREATE_SIGNALED_BIT,
};
auto fence_collect = [this](VkFence fence) {
vk.DestroyFence(device_, fence, nullptr);
};
for (size_t i = 0; i < use_fences_.size(); i++) {
VkFence fence = VK_NULL_HANDLE;
if (VK_CALL_LOG_ERROR(vk.CreateFence(device_, &create_info, nullptr,
&fence)) != VK_SUCCESS) {
return false;
}
use_fences_[i] = VulkanHandle<VkFence>{fence, fence_collect};
}
return true;
}
bool VulkanBackbuffer::WaitFences() {
VkFence fences[use_fences_.size()];
for (size_t i = 0; i < use_fences_.size(); i++) {
fences[i] = use_fences_[i];
}
return VK_CALL_LOG_ERROR(vk.WaitForFences(
device_, static_cast<uint32_t>(use_fences_.size()), fences, true,
std::numeric_limits<uint64_t>::max())) == VK_SUCCESS;
}
bool VulkanBackbuffer::ResetFences() {
VkFence fences[use_fences_.size()];
for (size_t i = 0; i < use_fences_.size(); i++) {
fences[i] = use_fences_[i];
}
return VK_CALL_LOG_ERROR(vk.ResetFences(
device_, static_cast<uint32_t>(use_fences_.size()), fences)) ==
VK_SUCCESS;
}
const VulkanHandle<VkFence>& VulkanBackbuffer::GetUsageFence() const {
return use_fences_[0];
}
const VulkanHandle<VkFence>& VulkanBackbuffer::GetRenderFence() const {
return use_fences_[1];
}
const VulkanHandle<VkSemaphore>& VulkanBackbuffer::GetUsageSemaphore() const {
return semaphores_[0];
}
const VulkanHandle<VkSemaphore>& VulkanBackbuffer::GetRenderSemaphore() const {
return semaphores_[1];
}
VulkanCommandBuffer& VulkanBackbuffer::GetUsageCommandBuffer() {
return usage_command_buffer_;
}
VulkanCommandBuffer& VulkanBackbuffer::GetRenderCommandBuffer() {
return render_command_buffer_;
}
} // namespace vulkan