1// Copyright 2013 The Flutter Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "vulkan_command_buffer.h"
6
7#include "flutter/vulkan/procs/vulkan_proc_table.h"
8
9namespace vulkan {
10
11VulkanCommandBuffer::VulkanCommandBuffer(
12 const VulkanProcTable& p_vk,
13 const VulkanHandle<VkDevice>& device,
14 const VulkanHandle<VkCommandPool>& pool)
15 : vk(p_vk), device_(device), pool_(pool), valid_(false) {
16 const VkCommandBufferAllocateInfo allocate_info = {
17 .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO,
18 .pNext = nullptr,
19 .commandPool = pool_,
20 .level = VK_COMMAND_BUFFER_LEVEL_PRIMARY,
21 .commandBufferCount = 1,
22 };
23
24 VkCommandBuffer buffer = VK_NULL_HANDLE;
25
26 if (VK_CALL_LOG_ERROR(vk.AllocateCommandBuffers(device_, &allocate_info,
27 &buffer)) != VK_SUCCESS) {
28 FML_DLOG(INFO) << "Could not allocate command buffers.";
29 return;
30 }
31
32 auto buffer_collect = [this](VkCommandBuffer buffer) {
33 vk.FreeCommandBuffers(device_, pool_, 1, &buffer);
34 };
35
36 handle_ = VulkanHandle<VkCommandBuffer>{buffer, buffer_collect};
37
38 valid_ = true;
39}
40
41VulkanCommandBuffer::~VulkanCommandBuffer() = default;
42
43bool VulkanCommandBuffer::IsValid() const {
44 return valid_;
45}
46
47VkCommandBuffer VulkanCommandBuffer::Handle() const {
48 return handle_;
49}
50
51bool VulkanCommandBuffer::Begin() const {
52 const VkCommandBufferBeginInfo info{
53 .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
54 .pNext = nullptr,
55 .flags = 0,
56 .pInheritanceInfo = nullptr,
57 };
58
59 return VK_CALL_LOG_ERROR(vk.BeginCommandBuffer(handle_, &info)) == VK_SUCCESS;
60}
61
62bool VulkanCommandBuffer::End() const {
63 return VK_CALL_LOG_ERROR(vk.EndCommandBuffer(handle_)) == VK_SUCCESS;
64}
65
66bool VulkanCommandBuffer::InsertPipelineBarrier(
67 VkPipelineStageFlagBits src_stage_flags,
68 VkPipelineStageFlagBits dest_stage_flags,
69 uint32_t /* mask of VkDependencyFlagBits */ dependency_flags,
70 uint32_t memory_barrier_count,
71 const VkMemoryBarrier* memory_barriers,
72 uint32_t buffer_memory_barrier_count,
73 const VkBufferMemoryBarrier* buffer_memory_barriers,
74 uint32_t image_memory_barrier_count,
75 const VkImageMemoryBarrier* image_memory_barriers) const {
76 vk.CmdPipelineBarrier(handle_, src_stage_flags, dest_stage_flags,
77 dependency_flags, memory_barrier_count, memory_barriers,
78 buffer_memory_barrier_count, buffer_memory_barriers,
79 image_memory_barrier_count, image_memory_barriers);
80 return true;
81}
82
83} // namespace vulkan
84

source code of flutter_engine/flutter/vulkan/vulkan_command_buffer.cc