VkImageView null_image_view(vk::command_buffer &cmd)
{
if (g_null_image_view)
return g_null_image_view->value;
g_null_texture.reset(new image(g_current_renderer, get_memory_mapping(g_current_renderer.gpu()).device_local, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
VK_IMAGE_TYPE_2D, VK_FORMAT_B8G8R8A8_UNORM, 4, 4, 1, 1, 1, VK_SAMPLE_COUNT_1_BIT, VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_TILING_OPTIMAL, VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT, 0));
g_null_image_view.reset(new image_view(g_current_renderer, g_null_texture->value, VK_IMAGE_VIEW_TYPE_2D,
VK_FORMAT_B8G8R8A8_UNORM, {VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A},
{VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1}));
// Initialize memory to transparent black
VkClearColorValue clear_color = {};
VkImageSubresourceRange range = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
change_image_layout(cmd, g_null_texture.get(), VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, range);
vkCmdClearColorImage(cmd, g_null_texture->value, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, &clear_color, 1, &range);
// Prep for shader access
change_image_layout(cmd, g_null_texture.get(), VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, range);
return g_null_image_view->value;
}
bool ObjectCache::Initialize()
{
if (!CreateDescriptorSetLayouts())
return false;
if (!CreatePipelineLayouts())
return false;
if (!CreateUtilityShaderVertexFormat())
return false;
if (!CreateStaticSamplers())
return false;
m_utility_shader_vertex_buffer =
StreamBuffer::Create(VK_BUFFER_USAGE_VERTEX_BUFFER_BIT, 1024 * 1024, 4 * 1024 * 1024);
m_utility_shader_uniform_buffer =
StreamBuffer::Create(VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT, 1024, 4 * 1024 * 1024);
if (!m_utility_shader_vertex_buffer || !m_utility_shader_uniform_buffer)
return false;
m_dummy_texture = Texture2D::Create(1, 1, 1, 1, VK_FORMAT_R8G8B8A8_UNORM, VK_SAMPLE_COUNT_1_BIT,
VK_IMAGE_VIEW_TYPE_2D_ARRAY, VK_IMAGE_TILING_OPTIMAL,
VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT);
m_dummy_texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentInitCommandBuffer(),
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
VkClearColorValue clear_color = {};
VkImageSubresourceRange clear_range = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1};
vkCmdClearColorImage(g_command_buffer_mgr->GetCurrentInitCommandBuffer(),
m_dummy_texture->GetImage(), m_dummy_texture->GetLayout(), &clear_color, 1,
&clear_range);
m_dummy_texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentInitCommandBuffer(),
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
return true;
}
bool FramebufferManager::CreateEFBFramebuffer()
{
m_efb_width = static_cast<u32>(std::max(Renderer::GetTargetWidth(), 1));
m_efb_height = static_cast<u32>(std::max(Renderer::GetTargetHeight(), 1));
m_efb_layers = (g_ActiveConfig.iStereoMode != STEREO_OFF) ? 2 : 1;
INFO_LOG(VIDEO, "EFB size: %ux%ux%u", m_efb_width, m_efb_height, m_efb_layers);
// Update the static variable in the base class. Why does this even exist?
FramebufferManagerBase::m_EFBLayers = m_efb_layers;
// Allocate EFB render targets
m_efb_color_texture =
Texture2D::Create(m_efb_width, m_efb_height, 1, m_efb_layers, EFB_COLOR_TEXTURE_FORMAT,
m_efb_samples, VK_IMAGE_VIEW_TYPE_2D_ARRAY, VK_IMAGE_TILING_OPTIMAL,
VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT |
VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_SAMPLED_BIT);
// We need a second texture to swap with for changing pixel formats
m_efb_convert_color_texture =
Texture2D::Create(m_efb_width, m_efb_height, 1, m_efb_layers, EFB_COLOR_TEXTURE_FORMAT,
m_efb_samples, VK_IMAGE_VIEW_TYPE_2D_ARRAY, VK_IMAGE_TILING_OPTIMAL,
VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT |
VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_SAMPLED_BIT);
m_efb_depth_texture = Texture2D::Create(
m_efb_width, m_efb_height, 1, m_efb_layers, EFB_DEPTH_TEXTURE_FORMAT, m_efb_samples,
VK_IMAGE_VIEW_TYPE_2D_ARRAY, VK_IMAGE_TILING_OPTIMAL,
VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT |
VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT | VK_IMAGE_USAGE_SAMPLED_BIT);
if (!m_efb_color_texture || !m_efb_convert_color_texture || !m_efb_depth_texture)
return false;
// Create resolved textures if MSAA is on
if (m_efb_samples != VK_SAMPLE_COUNT_1_BIT)
{
m_efb_resolve_color_texture = Texture2D::Create(
m_efb_width, m_efb_height, 1, m_efb_layers, EFB_COLOR_TEXTURE_FORMAT, VK_SAMPLE_COUNT_1_BIT,
VK_IMAGE_VIEW_TYPE_2D_ARRAY, VK_IMAGE_TILING_OPTIMAL,
VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT |
VK_IMAGE_USAGE_SAMPLED_BIT);
m_efb_resolve_depth_texture = Texture2D::Create(
m_efb_width, m_efb_height, 1, m_efb_layers, EFB_DEPTH_AS_COLOR_TEXTURE_FORMAT,
VK_SAMPLE_COUNT_1_BIT, VK_IMAGE_VIEW_TYPE_2D_ARRAY, VK_IMAGE_TILING_OPTIMAL,
VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |
VK_IMAGE_USAGE_SAMPLED_BIT);
if (!m_efb_resolve_color_texture || !m_efb_resolve_depth_texture)
return false;
VkImageView attachment = m_efb_resolve_depth_texture->GetView();
VkFramebufferCreateInfo framebuffer_info = { VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,
nullptr,
0,
m_depth_resolve_render_pass,
1,
&attachment,
m_efb_width,
m_efb_height,
m_efb_layers };
VkResult res = vkCreateFramebuffer(g_vulkan_context->GetDevice(), &framebuffer_info, nullptr,
&m_depth_resolve_framebuffer);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateFramebuffer failed: ");
return false;
}
}
VkImageView framebuffer_attachments[] = {
m_efb_color_texture->GetView(), m_efb_depth_texture->GetView(),
};
VkFramebufferCreateInfo framebuffer_info = { VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,
nullptr,
0,
m_efb_load_render_pass,
static_cast<u32>(ArraySize(framebuffer_attachments)),
framebuffer_attachments,
m_efb_width,
m_efb_height,
m_efb_layers };
VkResult res = vkCreateFramebuffer(g_vulkan_context->GetDevice(), &framebuffer_info, nullptr,
&m_efb_framebuffer);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateFramebuffer failed: ");
return false;
}
// Create second framebuffer for format conversions
framebuffer_attachments[0] = m_efb_convert_color_texture->GetView();
res = vkCreateFramebuffer(g_vulkan_context->GetDevice(), &framebuffer_info, nullptr,
&m_efb_convert_framebuffer);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateFramebuffer failed: ");
return false;
}
// Transition to state that can be used to clear
m_efb_color_texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentCommandBuffer(),
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
m_efb_depth_texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentCommandBuffer(),
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
// Clear the contents of the buffers.
static const VkClearColorValue clear_color = { { 0.0f, 0.0f, 0.0f, 0.0f } };
static const VkClearDepthStencilValue clear_depth = { 0.0f, 0 };
VkImageSubresourceRange clear_color_range = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, m_efb_layers };
VkImageSubresourceRange clear_depth_range = { VK_IMAGE_ASPECT_DEPTH_BIT, 0, 1, 0, m_efb_layers };
vkCmdClearColorImage(g_command_buffer_mgr->GetCurrentCommandBuffer(),
m_efb_color_texture->GetImage(), VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
&clear_color, 1, &clear_color_range);
vkCmdClearDepthStencilImage(g_command_buffer_mgr->GetCurrentCommandBuffer(),
m_efb_depth_texture->GetImage(), VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
&clear_depth, 1, &clear_depth_range);
// Transition to color attachment state ready for rendering.
m_efb_color_texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentCommandBuffer(),
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
m_efb_depth_texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentCommandBuffer(),
VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL);
return true;
}
bool fill_present_command_buffer(VkCommandBuffer command_buffer, VkImage image) {
static VkCommandBufferBeginInfo cmd_buffer_begin_info = {
VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO, // VkStructureType sType
nullptr, // const void *pNext
VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT, // VkCommandBufferUsageFlags flags
nullptr // const VkCommandBufferInheritanceInfo *pInheritanceInfo
};
static VkClearColorValue clear_color = {
{1.0f, 0.8f, 0.7f, 0.0f}
};
static VkImageSubresourceRange image_subresource_range = {
VK_IMAGE_ASPECT_COLOR_BIT, // VkImageAspectFlags aspectMask
0, // uint32_t baseMipLevel
1, // uint32_t levelCount
0, // uint32_t baseArrayLayer
1 // uint32_t layerCount
};
static VkImageMemoryBarrier barrier_from_present_to_clear = {
VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER, // VkStructureType sType
nullptr, // const void *pNext
VK_ACCESS_MEMORY_READ_BIT, // VkAccessFlags srcAccessMask
VK_ACCESS_TRANSFER_WRITE_BIT, // VkAccessFlags dstAccessMask
VK_IMAGE_LAYOUT_UNDEFINED, // VkImageLayout oldLayout
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, // VkImageLayout newLayout
vk_globals::present_queue.index, // uint32_t srcQueueFamilyIndex
vk_globals::present_queue.index, // uint32_t dstQueueFamilyIndex
image, // VkImage image
image_subresource_range // VkImageSubresourceRange subresourceRange
};
static VkImageMemoryBarrier barrier_from_clear_to_present = {
VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER, // VkStructureType sType
nullptr, // const void *pNext
VK_ACCESS_TRANSFER_WRITE_BIT, // VkAccessFlags srcAccessMask
VK_ACCESS_MEMORY_READ_BIT, // VkAccessFlags dstAccessMask
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, // VkImageLayout oldLayout
VK_IMAGE_LAYOUT_PRESENT_SRC_KHR, // VkImageLayout newLayout
vk_globals::present_queue.index, // uint32_t srcQueueFamilyIndex
vk_globals::present_queue.index, // uint32_t dstQueueFamilyIndex
image, // VkImage image
image_subresource_range // VkImageSubresourceRange subresourceRange
};
vkBeginCommandBuffer(command_buffer, &cmd_buffer_begin_info);
vkCmdPipelineBarrier(command_buffer, VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, nullptr, 0, nullptr, 1,
&barrier_from_present_to_clear);
vkCmdClearColorImage(command_buffer, image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, &clear_color, 1,
&image_subresource_range);
vkCmdPipelineBarrier(command_buffer, VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, nullptr, 0, nullptr, 1,
&barrier_from_clear_to_present);
VK_VERIFY (vkEndCommandBuffer(command_buffer));
return true;
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
bool U_ASSERT_ONLY pass;
struct sample_info info = {};
char sample_title[] = "Input Attachment Sample";
const bool depthPresent = false;
const bool vertexPresent = false;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
VkFormatProperties props;
vkGetPhysicalDeviceFormatProperties(info.gpus[0], VK_FORMAT_R8G8B8A8_UNORM, &props);
if (!(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT)) {
std::cout << "VK_FORMAT_R8G8B8A8_UNORM format unsupported for input "
"attachment\n";
exit(-1);
}
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
/* VULKAN_KEY_START */
// Create a framebuffer with 2 attachments, one the color attachment
// the shaders render into, and the other an input attachment which
// will be cleared to yellow, and then used by the shaders to color
// the drawn triangle. Final result should be a yellow triangle
// Create the image that will be used as the input attachment
// The image for the color attachment is the presentable image already
// created in init_swapchain()
VkImageCreateInfo image_create_info = {};
image_create_info.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
image_create_info.pNext = NULL;
image_create_info.imageType = VK_IMAGE_TYPE_2D;
image_create_info.format = info.format;
image_create_info.extent.width = info.width;
image_create_info.extent.height = info.height;
image_create_info.extent.depth = 1;
image_create_info.mipLevels = 1;
image_create_info.arrayLayers = 1;
image_create_info.samples = NUM_SAMPLES;
image_create_info.tiling = VK_IMAGE_TILING_OPTIMAL;
image_create_info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
image_create_info.usage = VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
image_create_info.queueFamilyIndexCount = 0;
image_create_info.pQueueFamilyIndices = NULL;
image_create_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
image_create_info.flags = 0;
VkMemoryAllocateInfo mem_alloc = {};
mem_alloc.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
mem_alloc.pNext = NULL;
mem_alloc.allocationSize = 0;
mem_alloc.memoryTypeIndex = 0;
VkImage input_image;
VkDeviceMemory input_memory;
res = vkCreateImage(info.device, &image_create_info, NULL, &input_image);
assert(res == VK_SUCCESS);
VkMemoryRequirements mem_reqs;
vkGetImageMemoryRequirements(info.device, input_image, &mem_reqs);
mem_alloc.allocationSize = mem_reqs.size;
pass = memory_type_from_properties(info, mem_reqs.memoryTypeBits, 0, &mem_alloc.memoryTypeIndex);
assert(pass);
res = vkAllocateMemory(info.device, &mem_alloc, NULL, &input_memory);
assert(res == VK_SUCCESS);
res = vkBindImageMemory(info.device, input_image, input_memory, 0);
assert(res == VK_SUCCESS);
// Set the image layout to TRANSFER_DST_OPTIMAL to be ready for clear
set_image_layout(info, input_image, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT);
VkImageSubresourceRange srRange = {};
srRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
srRange.baseMipLevel = 0;
srRange.levelCount = VK_REMAINING_MIP_LEVELS;
srRange.baseArrayLayer = 0;
srRange.layerCount = VK_REMAINING_ARRAY_LAYERS;
VkClearColorValue clear_color;
clear_color.float32[0] = 1.0f;
clear_color.float32[1] = 1.0f;
clear_color.float32[2] = 0.0f;
clear_color.float32[3] = 0.0f;
// Clear the input attachment image to yellow
vkCmdClearColorImage(info.cmd, input_image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, &clear_color, 1, &srRange);
// Set the image layout to SHADER_READONLY_OPTIMAL for use by the shaders
set_image_layout(info, input_image, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT);
VkImageViewCreateInfo view_info = {};
view_info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
view_info.pNext = NULL;
view_info.image = VK_NULL_HANDLE;
view_info.viewType = VK_IMAGE_VIEW_TYPE_2D;
view_info.format = info.format;
view_info.components.r = VK_COMPONENT_SWIZZLE_R;
view_info.components.g = VK_COMPONENT_SWIZZLE_G;
view_info.components.b = VK_COMPONENT_SWIZZLE_B;
view_info.components.a = VK_COMPONENT_SWIZZLE_A;
view_info.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
view_info.subresourceRange.baseMipLevel = 0;
view_info.subresourceRange.levelCount = 1;
view_info.subresourceRange.baseArrayLayer = 0;
view_info.subresourceRange.layerCount = 1;
VkImageView input_attachment_view;
view_info.image = input_image;
res = vkCreateImageView(info.device, &view_info, NULL, &input_attachment_view);
assert(res == VK_SUCCESS);
VkDescriptorImageInfo input_image_info = {};
input_image_info.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
input_image_info.imageView = input_attachment_view;
input_image_info.sampler = VK_NULL_HANDLE;
VkDescriptorSetLayoutBinding layout_bindings[1];
layout_bindings[0].binding = 0;
layout_bindings[0].descriptorType = VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT;
layout_bindings[0].descriptorCount = 1;
layout_bindings[0].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
layout_bindings[0].pImmutableSamplers = NULL;
VkDescriptorSetLayoutCreateInfo descriptor_layout = {};
descriptor_layout.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
descriptor_layout.pNext = NULL;
descriptor_layout.bindingCount = 1;
descriptor_layout.pBindings = layout_bindings;
info.desc_layout.resize(NUM_DESCRIPTOR_SETS);
res = vkCreateDescriptorSetLayout(info.device, &descriptor_layout, NULL, info.desc_layout.data());
assert(res == VK_SUCCESS);
VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo = {};
pPipelineLayoutCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pPipelineLayoutCreateInfo.pNext = NULL;
pPipelineLayoutCreateInfo.pushConstantRangeCount = 0;
pPipelineLayoutCreateInfo.pPushConstantRanges = NULL;
pPipelineLayoutCreateInfo.setLayoutCount = NUM_DESCRIPTOR_SETS;
pPipelineLayoutCreateInfo.pSetLayouts = info.desc_layout.data();
res = vkCreatePipelineLayout(info.device, &pPipelineLayoutCreateInfo, NULL, &info.pipeline_layout);
assert(res == VK_SUCCESS);
// First attachment is the color attachment - clear at the beginning of the
// renderpass and transition layout to PRESENT_SRC_KHR at the end of
// renderpass
VkAttachmentDescription attachments[2];
attachments[0].format = info.format;
attachments[0].samples = VK_SAMPLE_COUNT_1_BIT;
attachments[0].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
attachments[0].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
attachments[0].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attachments[0].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attachments[0].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
attachments[0].finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
attachments[0].flags = 0;
// Second attachment is input attachment. Once cleared it should have
// width*height yellow pixels. Doing a subpassLoad in the fragment shader
// should give the shader the color at the fragments x,y location
// from the input attachment
attachments[1].format = info.format;
attachments[1].samples = VK_SAMPLE_COUNT_1_BIT;
attachments[1].loadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
attachments[1].storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attachments[1].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attachments[1].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attachments[1].initialLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
attachments[1].finalLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
attachments[1].flags = 0;
VkAttachmentReference color_reference = {};
color_reference.attachment = 0;
color_reference.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
VkAttachmentReference input_reference = {};
input_reference.attachment = 1;
input_reference.layout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
VkSubpassDescription subpass = {};
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpass.flags = 0;
subpass.inputAttachmentCount = 1;
subpass.pInputAttachments = &input_reference;
subpass.colorAttachmentCount = 1;
subpass.pColorAttachments = &color_reference;
subpass.pResolveAttachments = NULL;
subpass.pDepthStencilAttachment = NULL;
subpass.preserveAttachmentCount = 0;
subpass.pPreserveAttachments = NULL;
VkRenderPassCreateInfo rp_info = {};
rp_info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
rp_info.pNext = NULL;
rp_info.attachmentCount = 2;
rp_info.pAttachments = attachments;
rp_info.subpassCount = 1;
rp_info.pSubpasses = &subpass;
rp_info.dependencyCount = 0;
rp_info.pDependencies = NULL;
res = vkCreateRenderPass(info.device, &rp_info, NULL, &info.render_pass);
assert(!res);
init_shaders(info, vertShaderText, fragShaderText);
VkImageView fb_attachments[2];
fb_attachments[1] = input_attachment_view;
VkFramebufferCreateInfo fbc_info = {};
fbc_info.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
fbc_info.pNext = NULL;
fbc_info.renderPass = info.render_pass;
fbc_info.attachmentCount = 2;
fbc_info.pAttachments = fb_attachments;
fbc_info.width = info.width;
fbc_info.height = info.height;
fbc_info.layers = 1;
uint32_t i;
info.framebuffers = (VkFramebuffer *)malloc(info.swapchainImageCount * sizeof(VkFramebuffer));
for (i = 0; i < info.swapchainImageCount; i++) {
fb_attachments[0] = info.buffers[i].view;
res = vkCreateFramebuffer(info.device, &fbc_info, NULL, &info.framebuffers[i]);
assert(res == VK_SUCCESS);
}
VkDescriptorPoolSize type_count[1];
type_count[0].type = VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT;
type_count[0].descriptorCount = 1;
VkDescriptorPoolCreateInfo descriptor_pool = {};
descriptor_pool.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
descriptor_pool.pNext = NULL;
descriptor_pool.maxSets = 1;
descriptor_pool.poolSizeCount = 1;
descriptor_pool.pPoolSizes = type_count;
res = vkCreateDescriptorPool(info.device, &descriptor_pool, NULL, &info.desc_pool);
assert(res == VK_SUCCESS);
VkDescriptorSetAllocateInfo desc_alloc_info[1];
desc_alloc_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
desc_alloc_info[0].pNext = NULL;
desc_alloc_info[0].descriptorPool = info.desc_pool;
desc_alloc_info[0].descriptorSetCount = 1;
desc_alloc_info[0].pSetLayouts = info.desc_layout.data();
info.desc_set.resize(1);
res = vkAllocateDescriptorSets(info.device, desc_alloc_info, info.desc_set.data());
assert(res == VK_SUCCESS);
VkWriteDescriptorSet writes[1];
// Write descriptor set with one write describing input attachment
writes[0] = {};
writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
writes[0].dstSet = info.desc_set[0];
writes[0].dstBinding = 0;
writes[0].descriptorCount = 1;
writes[0].descriptorType = VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT;
writes[0].pImageInfo = &input_image_info;
writes[0].pBufferInfo = nullptr;
writes[0].pTexelBufferView = nullptr;
writes[0].dstArrayElement = 0;
vkUpdateDescriptorSets(info.device, 1, writes, 0, NULL);
init_pipeline_cache(info);
init_pipeline(info, depthPresent, vertexPresent);
// Color attachment clear to gray
VkClearValue clear_values;
clear_values.color.float32[0] = 0.2f;
clear_values.color.float32[1] = 0.2f;
clear_values.color.float32[2] = 0.2f;
clear_values.color.float32[3] = 0.2f;
VkSemaphoreCreateInfo imageAcquiredSemaphoreCreateInfo;
imageAcquiredSemaphoreCreateInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
imageAcquiredSemaphoreCreateInfo.pNext = NULL;
imageAcquiredSemaphoreCreateInfo.flags = 0;
res = vkCreateSemaphore(info.device, &imageAcquiredSemaphoreCreateInfo, NULL, &info.imageAcquiredSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX, info.imageAcquiredSemaphore, VK_NULL_HANDLE,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 1;
rp_begin.pClearValues = &clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 0, NULL);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
/* VULKAN_KEY_END */
const VkCommandBuffer cmd_bufs[] = {info.cmd};
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
execute_queue_cmdbuf(info, cmd_bufs, drawFence);
do {
res = vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
vkDestroyFence(info.device, drawFence, NULL);
execute_present_image(info);
wait_seconds(1);
if (info.save_images) write_ppm(info, "input_attachment");
vkDestroySemaphore(info.device, info.imageAcquiredSemaphore, NULL);
vkDestroyImageView(info.device, input_attachment_view, NULL);
vkDestroyImage(info.device, input_image, NULL);
vkFreeMemory(info.device, input_memory, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_descriptor_pool(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int sample_main() {
VkResult U_ASSERT_ONLY res;
char sample_title[] = "MT Cmd Buffer Sample";
const bool depthPresent = false;
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
VkSemaphoreCreateInfo presentCompleteSemaphoreCreateInfo;
presentCompleteSemaphoreCreateInfo.sType =
VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
presentCompleteSemaphoreCreateInfo.pNext = NULL;
presentCompleteSemaphoreCreateInfo.flags = 0;
res = vkCreateSemaphore(info.device, &presentCompleteSemaphoreCreateInfo,
NULL, &info.presentCompleteSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX,
info.presentCompleteSemaphore, NULL,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo = {};
pPipelineLayoutCreateInfo.sType =
VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pPipelineLayoutCreateInfo.pNext = NULL;
pPipelineLayoutCreateInfo.pushConstantRangeCount = 0;
pPipelineLayoutCreateInfo.pPushConstantRanges = NULL;
pPipelineLayoutCreateInfo.setLayoutCount = 0;
pPipelineLayoutCreateInfo.pSetLayouts = NULL;
res = vkCreatePipelineLayout(info.device, &pPipelineLayoutCreateInfo, NULL,
&info.pipeline_layout);
assert(res == VK_SUCCESS);
init_renderpass(
info, depthPresent,
false); // Can't clear in renderpass load because we re-use pipeline
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, depthPresent);
/* The binding and attributes should be the same for all 3 vertex buffers,
* so init here */
info.vi_binding.binding = 0;
info.vi_binding.inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
info.vi_binding.stride = sizeof(triData[0]);
info.vi_attribs[0].binding = 0;
info.vi_attribs[0].location = 0;
info.vi_attribs[0].format = VK_FORMAT_R32G32B32A32_SFLOAT;
info.vi_attribs[0].offset = 0;
info.vi_attribs[1].binding = 0;
info.vi_attribs[1].location = 1;
info.vi_attribs[1].format = VK_FORMAT_R32G32B32A32_SFLOAT;
info.vi_attribs[1].offset = 16;
init_pipeline_cache(info);
init_pipeline(info, depthPresent);
VkImageSubresourceRange srRange = {};
srRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
srRange.baseMipLevel = 0;
srRange.levelCount = VK_REMAINING_MIP_LEVELS;
srRange.baseArrayLayer = 0;
srRange.layerCount = VK_REMAINING_ARRAY_LAYERS;
VkClearColorValue clear_color[1];
clear_color[0].float32[0] = 0.2f;
clear_color[0].float32[1] = 0.2f;
clear_color[0].float32[2] = 0.2f;
clear_color[0].float32[3] = 0.2f;
/* We need to do the clear here instead of as a load op since all 3 threads
* share the same pipeline / renderpass */
set_image_layout(info, info.buffers[info.current_buffer].image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
vkCmdClearColorImage(info.cmd, info.buffers[info.current_buffer].image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, clear_color, 1,
&srRange);
set_image_layout(info, info.buffers[info.current_buffer].image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
res = vkEndCommandBuffer(info.cmd);
const VkCommandBuffer cmd_bufs[] = {info.cmd};
VkFence clearFence;
init_fence(info, clearFence);
VkPipelineStageFlags pipe_stage_flags =
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
VkSubmitInfo submit_info[1] = {};
submit_info[0].pNext = NULL;
submit_info[0].sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info[0].waitSemaphoreCount = 1;
submit_info[0].pWaitSemaphores = &info.presentCompleteSemaphore;
submit_info[0].pWaitDstStageMask = NULL;
submit_info[0].commandBufferCount = 1;
submit_info[0].pCommandBuffers = cmd_bufs;
submit_info[0].signalSemaphoreCount = 0;
submit_info[0].pSignalSemaphores = NULL;
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.queue, 1, submit_info, clearFence);
assert(!res);
do {
res = vkWaitForFences(info.device, 1, &clearFence, VK_TRUE,
FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
vkDestroyFence(info.device, clearFence, NULL);
/* VULKAN_KEY_START */
/* Use the fourth slot in the command buffer array for the presentation */
/* barrier using the command buffer in info */
threadCmdBufs[3] = info.cmd;
sample_platform_thread vk_threads[3];
for (size_t i = 0; i < 3; i++) {
sample_platform_thread_create(&vk_threads[i], &per_thread_code,
(void *)i);
}
VkCommandBufferBeginInfo cmd_buf_info = {};
cmd_buf_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
cmd_buf_info.pNext = NULL;
cmd_buf_info.flags = 0;
cmd_buf_info.pInheritanceInfo = NULL;
res = vkBeginCommandBuffer(threadCmdBufs[3], &cmd_buf_info);
assert(res == VK_SUCCESS);
VkImageMemoryBarrier prePresentBarrier = {};
prePresentBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
prePresentBarrier.pNext = NULL;
prePresentBarrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
prePresentBarrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
prePresentBarrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
prePresentBarrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
prePresentBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
prePresentBarrier.subresourceRange.baseMipLevel = 0;
prePresentBarrier.subresourceRange.levelCount = 1;
prePresentBarrier.subresourceRange.baseArrayLayer = 0;
prePresentBarrier.subresourceRange.layerCount = 1;
prePresentBarrier.image = info.buffers[info.current_buffer].image;
vkCmdPipelineBarrier(threadCmdBufs[3], VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, NULL, 0,
NULL, 1, &prePresentBarrier);
res = vkEndCommandBuffer(threadCmdBufs[3]);
assert(res == VK_SUCCESS);
pipe_stage_flags = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
submit_info[0].pNext = NULL;
submit_info[0].sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info[0].waitSemaphoreCount = 0;
submit_info[0].pWaitSemaphores = NULL;
submit_info[0].pWaitDstStageMask = &pipe_stage_flags;
submit_info[0].commandBufferCount =
4; /* 3 from threads + prePresentBarrier */
submit_info[0].pCommandBuffers = threadCmdBufs;
submit_info[0].signalSemaphoreCount = 0;
submit_info[0].pSignalSemaphores = NULL;
/* Wait for all of the threads to finish */
for (int i = 0; i < 3; i++) {
sample_platform_thread_join(vk_threads[i], NULL);
}
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.queue, 1, submit_info, drawFence);
assert(!res);
/* Make sure command buffer is finished before presenting */
do {
res =
vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
execute_present_image(info);
wait_seconds(1);
/* VULKAN_KEY_END */
vkDestroyBuffer(info.device, vertex_buffer[0].buf, NULL);
vkDestroyBuffer(info.device, vertex_buffer[1].buf, NULL);
vkDestroyBuffer(info.device, vertex_buffer[2].buf, NULL);
vkFreeMemory(info.device, vertex_buffer[0].mem, NULL);
vkFreeMemory(info.device, vertex_buffer[1].mem, NULL);
vkFreeMemory(info.device, vertex_buffer[2].mem, NULL);
for (int i = 0; i < 3; i++) {
vkFreeCommandBuffers(info.device, threadCmdPools[i], 1,
&threadCmdBufs[i]);
vkDestroyCommandPool(info.device, threadCmdPools[i], NULL);
}
vkDestroySemaphore(info.device, info.presentCompleteSemaphore, NULL);
vkDestroyFence(info.device, drawFence, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
vkDestroyPipelineLayout(info.device, info.pipeline_layout, NULL);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_window(info);
destroy_device(info);
destroy_instance(info);
return 0;
}
void CommandBuffers::cmdClearColorImage(const VkImage image, const VkImageLayout imageLayout, const VkClearColorValue* color, const uint32_t rangeCount, const VkImageSubresourceRange* ranges, const uint32_t bufferIndex) const
{
vkCmdClearColorImage(allCommandBuffers[bufferIndex], image, imageLayout, color, rangeCount, ranges);
}
static void render_loop(uint32_t dev_count, struct tut1_physical_device *phy_devs, struct tut2_device *devs, struct tut6_swapchain *swapchains)
{
int res;
struct tut7_render_essentials essentials[dev_count];
/* Allocate render essentials. See this function in tut7_render.c for explanations. */
for (uint32_t i = 0; i < dev_count; ++i)
{
res = tut7_render_get_essentials(&essentials[i], &phy_devs[i], &devs[i], &swapchains[i]);
if (res)
{
printf("-- failed for device %u\n", i);
return;
}
}
unsigned int frames = 0;
time_t before = time(NULL);
uint8_t color = 0;
/* Process events from SDL and render. If process_events returns non-zero, it signals application exit. */
while (process_events() == 0)
{
/*
* A simple imprecise FPS calculator. Try the --no-vsync option to this program to see the difference.
*
* On Linux, with Nvidia GTX 970, and Vulkan 1.0.8, --no-vsync got me about 12000 FPS.
*/
time_t now = time(NULL);
if (now != before)
{
printf("%lds: %u frames\n", now - before, frames);
frames = 0;
before = now;
}
++frames;
/*
* We are not yet ready to actually render something. For that, we would need descriptor sets and
* pipelines, but we'll get to that soon. In tut7.c, we have a repository of functions to create
* resources for the eventual rendering. Here, we'll ignore all that and do what we ignored in
* Tutorial 6, and that is properly transitioning the swapchain images between "present src" and
* something we can render to. With a graphics pipeline, we would want to transition to
* "color attachment optimal". Since we don't have one, we are going to "clear" the screen which
* doesn't need a graphics pipeline. In that case, the layout of the image should be GENERAL.
*/
for (uint32_t i = 0; i < dev_count; ++i)
{
uint32_t image_index;
/*
* To render to an image and present it on the screen, the following sequence of operations
* needs to be done:
*
* - acquire from swapchain
* - transition to color attachment optimal
* - render
* - transition to present src
* - present the image
*
* One way to implement this would be to call the corresponding functions one by one, wait and
* make sure the image passes through each section, and repeat. The problem with this way is
* that there is wasted time between each function call. Not that function call itself takes
* measurable time, but the setup and finish times of each call, especially because we are
* interacting with the GPU.
*
* Vulkan is made for parallelism and efficiency, so naturally it's not stupid in this regard!
* There are different ways to do the above in parallel, and synchronize them. One nice thing
* is that command buffers can call other secondary command buffers. So, while a small part of
* the command buffer requires knowledge of which presentable image it is working with, the
* majority of it doesn't, so they could be pre-recorded or recorded in parallel by other
* threads. Another nice thing is that many of the functions work asynchronously, such as
* submission to queue for rendering. This allows the CPU to go ahead with executing the rest
* of the above algorithm, only wait for the GPU to finish rendering when it has to, and let
* synchronization mechanisms take care of handling the flow of execution in the back.
*
* One could imagine different ways of doing things, but here is a simple example:
*
* - acquire from swapchain, signalling semaphore A
* - wait on fence C (for previous frame to finish)
* - create a command buffer with 1) first transition, 2) render, 3) second transition
* - submit the command buffer with semaphore A waiting in the beginning and semaphore B
* signalling the end, with fence C signalling the end as well
* - present to swapchain, waiting on the second semaphore
*
* The significance of the fence above is the following. In Tutorial 6, we used `usleep` to
* avoid busy looping. That was bad, because it put a hard limit and the frame rate. The
* issue is not just busy looping though. Since the submissions to queues happen
* asynchronously, we risk submitting work faster than the card can actually perform them, with
* the result being that frames we send now are rendered much later, after all our previous
* work is finished. This delay can easily become unacceptable; imagine a player has hit the
* key to move forwards, you detect this and generate the next frame accordingly, but the
* player doesn't actually see her character move forward while several older frames are still
* being rendered.
*
* The location of the fence is chosen as such, to allow maximum overlap between GPU and CPU
* work. In this case, while the GPU is still rendering, the CPU can wait for the swapchain
* image to be acquired. The wait on the fence could not be delayed any further, because we
* can't re-record a command buffer that is being executed. Interestingly, if we use two
* command buffers and alternate between them, we could also wait for the fence later! Let's
* not go that far yet.
*/
/* See this function in tut7_render.c for explanations */
res = tut7_render_start(&essentials[i], &devs[i], &swapchains[i], VK_IMAGE_LAYOUT_GENERAL, &image_index);
if (res)
{
printf("-- failed for device %u\n", i);
goto exit_fail;
}
/*
* We did everything just to clear the image. Like I said, it's possible to clear an image
* outside a pipeline. It is also possible to clear it inside a pipeline, so fear not! When
* we have a graphics pipeline, we can transition the image directly to "color attachment
* optimal" and clear it, and we don't have to first transition to "general" and then
* transition again to "color attachment optimal".
*
* Clearing the image outside the pipeline is quite straightforward, and in fact has no notion
* of the image being used for presentation later. It's just clearing a general image.
*
* The vkCmdClearColorImage takes the command buffer, the image, the layout the image is in
* (which is "general", we just transitioned it), the color to clear the image with, and a set
* of "subresources" to clear. We are going to clear everything, and we have just a single mip
* level and a single array layer, so the subresource range to be cleared is similar to the
* `subresourceRange` in image barrier.
*
* The clear color needs to be specified based on the format of the image. The
* `VkClearColorValue` is a union which accepts RGBA values in float, uint32_t or int32_t, and
* we should choose the appropriate field based on swapchains[i].surface_format.format. If we
* weren't so lazy, we could write a simple lookup table that tells us which field to use for
* each format, but luckily we are lazy, so let's assume `float` is good for now and hope it's
* portable enough.
*
* For fun, let's change the background color on each frame!
*/
VkImageSubresourceRange clear_subresource_range = {
.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
.baseMipLevel = 0,
.levelCount = 1,
.baseArrayLayer = 0,
.layerCount = 1,
};
VkClearColorValue clear_color = {
.float32 = {color, (color + 64) % 256 / 255.0f, (color + 128) % 256 / 255.0f, 1},
};
++color;
vkCmdClearColorImage(essentials[i].cmd_buffer, essentials[i].images[image_index], VK_IMAGE_LAYOUT_GENERAL, &clear_color, 1, &clear_subresource_range);
/* See this function in tut7_render.c for explanations */
res = tut7_render_finish(&essentials[i], &devs[i], &swapchains[i], VK_IMAGE_LAYOUT_GENERAL, image_index);
if (res)
{
printf("-- failed for device %u\n", i);
goto exit_fail;
}
}
}
exit_fail:
for (uint32_t i = 0; i < dev_count; ++i)
tut7_render_cleanup_essentials(&essentials[i], &devs[i]);
}
int main(int argc, char **argv)
{
tut1_error res;
int retval = EXIT_FAILURE;
VkInstance vk;
struct tut1_physical_device phy_devs[MAX_DEVICES];
struct tut2_device devs[MAX_DEVICES];
struct tut6_swapchain swapchains[MAX_DEVICES] = {0};
SDL_Window *windows[MAX_DEVICES] = {NULL};
uint32_t dev_count = MAX_DEVICES;
bool no_vsync = false;
for (int i = 1; i < argc; ++i)
{
if (strcmp(argv[1], "--help") == 0)
{
printf("Usage: %s [--no-vsync]\n\n", argv[0]);
return 0;
}
if (strcmp(argv[1], "--no-vsync") == 0)
no_vsync = true;
}
/* Fire up Vulkan */
res = tut6_init(&vk);
if (!tut1_error_is_success(&res))
{
tut1_error_printf(&res, "Could not initialize Vulkan\n");
goto exit_bad_init;
}
/* Enumerate devices */
res = tut1_enumerate_devices(vk, phy_devs, &dev_count);
if (tut1_error_is_error(&res))
{
tut1_error_printf(&res, "Could not enumerate devices\n");
goto exit_bad_enumerate;
}
/* Get logical devices and enable WSI extensions */
for (uint32_t i = 0; i < dev_count; ++i)
{
res = tut6_setup(&phy_devs[i], &devs[i], VK_QUEUE_GRAPHICS_BIT);
if (tut1_error_is_error(&res))
{
tut1_error_printf(&res, "Could not setup logical device %u, command pools and queues\n", i);
goto exit_bad_setup;
}
}
/* Set up SDL */
if (SDL_Init(SDL_INIT_VIDEO))
{
printf("Could not initialize SDL: %s\n", SDL_GetError());
goto exit_bad_sdl;
}
for (uint32_t i = 0; i < dev_count; ++i)
{
char title[50];
snprintf(title, sizeof title, "Vk on device %u\n", i);
windows[i] = SDL_CreateWindow(title, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 1024, 768, 0);
if (windows[i] == NULL)
{
printf("Could not create window #%u: %s\n", i + 1, SDL_GetError());
goto exit_bad_window;
}
}
/* Get the surface and swapchain */
for (uint32_t i = 0; i < dev_count; ++i)
{
/* Let's still not bother with threads and use just 1 (the current thread) */
res = tut6_get_swapchain(vk, &phy_devs[i], &devs[i], &swapchains[i], windows[i], 1, no_vsync);
if (tut1_error_is_error(&res))
{
tut1_error_printf(&res, "Could not create surface and swapchain for device %u\n", i);
goto exit_bad_swapchain;
}
}
/* Render loop similar to Tutorial 6 */
render_loop(dev_count, phy_devs, devs, swapchains);
retval = 0;
/* Cleanup after yourself */
exit_bad_swapchain:
for (uint32_t i = 0; i < dev_count; ++i)
tut6_free_swapchain(vk, &devs[i], &swapchains[i]);
exit_bad_window:
for (uint32_t i = 0; i < dev_count; ++i)
if (windows[i])
SDL_DestroyWindow(windows[i]);
exit_bad_sdl:
SDL_Quit();
exit_bad_setup:
for (uint32_t i = 0; i < dev_count; ++i)
tut2_cleanup(&devs[i]);
exit_bad_enumerate:
tut1_exit(vk);
exit_bad_init:
return retval;
}
int sample_main(int argc, char **argv) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Memory Barriers";
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
info.instance_extension_names.push_back(VK_KHR_SURFACE_EXTENSION_NAME);
#ifdef _WIN32
info.instance_extension_names.push_back(VK_KHR_WIN32_SURFACE_EXTENSION_NAME);
#elif __ANDROID__
info.instance_extension_names.push_back(VK_KHR_ANDROID_SURFACE_EXTENSION_NAME);
#else
info.instance_extension_names.push_back(VK_KHR_XCB_SURFACE_EXTENSION_NAME);
#endif
info.device_extension_names.push_back(VK_KHR_SWAPCHAIN_EXTENSION_NAME);
init_instance(info, sample_title);
init_enumerate_device(info);
init_device(info);
info.width = info.height = 500;
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info, VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT);
// CmdClearColorImage is going to require usage of TRANSFER_DST, but
// it's not clear which format feature maps to the required TRANSFER_DST usage,
// BLIT_DST is a reasonable guess and it seems to work
init_texture(info, nullptr, VK_IMAGE_USAGE_TRANSFER_DST_BIT, VK_FORMAT_FEATURE_BLIT_DST_BIT);
init_uniform_buffer(info);
init_descriptor_and_pipeline_layouts(info, true);
init_renderpass(info, DEPTH_PRESENT, false, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, DEPTH_PRESENT);
init_vertex_buffer(info, vb_Data, sizeof(vb_Data), sizeof(vb_Data[0]), true);
init_descriptor_pool(info, true);
init_descriptor_set(info, true);
init_pipeline_cache(info);
init_pipeline(info, DEPTH_PRESENT);
/* VULKAN_KEY_START */
VkImageSubresourceRange srRange = {};
srRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
srRange.baseMipLevel = 0;
srRange.levelCount = VK_REMAINING_MIP_LEVELS;
srRange.baseArrayLayer = 0;
srRange.layerCount = VK_REMAINING_ARRAY_LAYERS;
VkClearColorValue clear_color[1];
clear_color[0].float32[0] = 0.2f;
clear_color[0].float32[1] = 0.2f;
clear_color[0].float32[2] = 0.2f;
clear_color[0].float32[3] = 0.2f;
VkSemaphoreCreateInfo presentCompleteSemaphoreCreateInfo;
presentCompleteSemaphoreCreateInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
presentCompleteSemaphoreCreateInfo.pNext = NULL;
presentCompleteSemaphoreCreateInfo.flags = 0;
res = vkCreateSemaphore(info.device, &presentCompleteSemaphoreCreateInfo, NULL, &info.imageAcquiredSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX, info.imageAcquiredSemaphore, VK_NULL_HANDLE,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
set_image_layout(info, info.buffers[info.current_buffer].image, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT);
// We need to do the clear here instead of using a renderpass load op since
// we will use the same renderpass multiple times in the frame
vkCmdClearColorImage(info.cmd, info.buffers[info.current_buffer].image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, clear_color, 1,
&srRange);
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 0;
rp_begin.pClearValues = NULL;
// Draw a textured quad on the left side of the window
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 0, NULL);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf, offsets);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 2 * 3, 1, 0, 0);
// We can't do a clear inside a renderpass, so end this one and start another one
// for the next draw
vkCmdEndRenderPass(info.cmd);
// Send a barrier to change the texture image's layout from SHADER_READ_ONLY
// to COLOR_ATTACHMENT_GENERAL because we're going to clear it
VkImageMemoryBarrier textureBarrier = {};
textureBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
textureBarrier.pNext = NULL;
textureBarrier.srcAccessMask = VK_ACCESS_SHADER_READ_BIT;
textureBarrier.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
textureBarrier.oldLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
textureBarrier.newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
textureBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
textureBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
textureBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
textureBarrier.subresourceRange.baseMipLevel = 0;
textureBarrier.subresourceRange.levelCount = 1;
textureBarrier.subresourceRange.baseArrayLayer = 0;
textureBarrier.subresourceRange.layerCount = 1;
textureBarrier.image = info.textures[0].image;
vkCmdPipelineBarrier(info.cmd, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, NULL, 0, NULL, 1,
&textureBarrier);
clear_color[0].float32[0] = 0.0f;
clear_color[0].float32[1] = 1.0f;
clear_color[0].float32[2] = 0.0f;
clear_color[0].float32[3] = 1.0f;
/* Clear texture to green */
vkCmdClearColorImage(info.cmd, info.textures[0].image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, clear_color, 1, &srRange);
// Send a barrier to change the texture image's layout back to SHADER_READ_ONLY
// because we're going to use it as a texture again
textureBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
textureBarrier.pNext = NULL;
textureBarrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
textureBarrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
textureBarrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
textureBarrier.newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
textureBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
textureBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
textureBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
textureBarrier.subresourceRange.baseMipLevel = 0;
textureBarrier.subresourceRange.levelCount = 1;
textureBarrier.subresourceRange.baseArrayLayer = 0;
textureBarrier.subresourceRange.layerCount = 1;
textureBarrier.image = info.textures[0].image;
vkCmdPipelineBarrier(info.cmd, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 0, NULL, 0, NULL, 1,
&textureBarrier);
// Draw the second quad to the right using the (now) green texture
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
// Draw starting with vertex index 6 to draw to the right of the first quad
vkCmdDraw(info.cmd, 2 * 3, 1, 6, 0);
vkCmdEndRenderPass(info.cmd);
// Change the present buffer from COLOR_ATTACHMENT_OPTIMAL to
// PRESENT_SOURCE_KHR
// so it can be presented
execute_pre_present_barrier(info);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
VkSubmitInfo submit_info = {};
VkPipelineStageFlags pipe_stage_flags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
init_submit_info(info, submit_info, pipe_stage_flags);
assert(res == VK_SUCCESS);
VkFence drawFence = {};
init_fence(info, drawFence);
// Queue the command buffer for execution
res = vkQueueSubmit(info.graphics_queue, 1, &submit_info, drawFence);
assert(res == VK_SUCCESS);
// Now present the image in the window
VkPresentInfoKHR present{};
init_present_info(info, present);
// Make sure command buffer is finished before presenting
do {
res = vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.present_queue, &present);
assert(res == VK_SUCCESS);
/* VULKAN_KEY_END */
wait_seconds(1);
if (info.save_images) write_ppm(info, "memory_barriers");
vkDestroySemaphore(info.device, info.imageAcquiredSemaphore, NULL);
vkDestroyFence(info.device, drawFence, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_textures(info);
destroy_descriptor_pool(info);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_uniform_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_window(info);
destroy_device(info);
destroy_instance(info);
return 0;
}
void VulkanBase::createInstance() {
// Application info init
const VkApplicationInfo applicationInfo = {
.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO,
.pNext = NULL,
.pApplicationName = name.c_str(),
.applicationVersion = 1,
.pEngineName = engineName.c_str(),
.engineVersion = 1,
.apiVersion = VK_API_VERSION, //FIXME Nvidia driver not updated to latest Vulkan Version
};
VkInstanceCreateInfo instanceCreateInfo = {
.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
.pNext = NULL,
.flags = VK_FLAGS_NONE,
.pApplicationInfo = &applicationInfo,
.enabledLayerCount = 0,
.ppEnabledLayerNames = NULL,
.enabledExtensionCount = 0,
.ppEnabledExtensionNames = NULL,
};
std::vector<const char*> enabledExtensions = { VK_KHR_SURFACE_EXTENSION_NAME, VK_KHR_XCB_SURFACE_EXTENSION_NAME};
//Check if extensions are present
vkUtils::checkGlobalExtensionPresent(VK_KHR_SURFACE_EXTENSION_NAME);
vkUtils::checkGlobalExtensionPresent(VK_KHR_XCB_SURFACE_EXTENSION_NAME);
#ifdef _DEBUG
if (enableValidation) {
//Extensions management
enabledExtensions.push_back(VK_EXT_DEBUG_REPORT_EXTENSION_NAME);
vkUtils::checkGlobalExtensionPresent(VK_EXT_DEBUG_REPORT_EXTENSION_NAME);
// Layer management
instanceCreateInfo.enabledLayerCount = vkDebug::validationLayerCount;
instanceCreateInfo.ppEnabledLayerNames = vkDebug::validationLayerNames;
// Check standard debug layers are present
for(uint32_t i = 0; i < instanceCreateInfo.enabledLayerCount; i++) {
vkUtils::checkGlobalLayerPresent(vkDebug::validationLayerNames[i]);
}
}
#endif // DEBUG
instanceCreateInfo.ppEnabledExtensionNames = enabledExtensions.data();
instanceCreateInfo.enabledExtensionCount = (uint32_t) enabledExtensions.size();
CHECK_RESULT(vkCreateInstance(&instanceCreateInfo, nullptr, &instance));
}
void VulkanBase::selectVkPhysicalDevice() {
uint32_t physicalDeviceCount = 0;
CHECK_RESULT(vkEnumeratePhysicalDevices(instance,&physicalDeviceCount,nullptr));
if (physicalDeviceCount<=0) {
ERROR("No physical device found");
}
std::vector<VkPhysicalDevice> physicalDevicesVector(physicalDeviceCount);
CHECK_RESULT(vkEnumeratePhysicalDevices(instance,&physicalDeviceCount,physicalDevicesVector.data()));
#ifdef _DEBUG
int deviceIndex = 0;
for(const auto & phyDev : physicalDevicesVector) {
VkPhysicalDeviceProperties phyDevProperties;
vkGetPhysicalDeviceProperties(phyDev, &phyDevProperties);
std::cout << "--- Physical device: " << phyDevProperties.deviceName << " (index: " << (deviceIndex++) << ")" << std::endl;
std::cout << " apiVersion: " << phyDevProperties.apiVersion << std::endl;
std::cout << " driverVersion: " << phyDevProperties.driverVersion << std::endl;
std::cout << " vendorID: " << phyDevProperties.vendorID << std::endl;
std::cout << " deviceID: " << phyDevProperties.deviceID << std::endl;
std::cout << " deviceType: ";
switch(phyDevProperties.deviceType) {
case VK_PHYSICAL_DEVICE_TYPE_OTHER:
std::cout << "OTHER";
break;
case VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU:
std::cout << "INTEGRATED_GPU";
break;
case VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU:
std::cout << "DISCRETE_GPU";
break;
case VK_PHYSICAL_DEVICE_TYPE_VIRTUAL_GPU:
std::cout << "VIRTUAL_GPU";
break;
case VK_PHYSICAL_DEVICE_TYPE_CPU:
std::cout << "CPU";
break;
default:
std::cout << "UNKNOWN!!!";
break;
}
std::cout << std::endl;
}
#endif // _DEBUG
physicalDevice = physicalDevicesVector.at(0);
// Gather Physical Device Memory Properties
vkGetPhysicalDeviceMemoryProperties(physicalDevice,&physicalDeviceMemoryProperties);
}
void VulkanBase::selectQueue() {
uint32_t queueFamilyPropertyCount = 0;
vkGetPhysicalDeviceQueueFamilyProperties(physicalDevice,&queueFamilyPropertyCount,nullptr);
if (queueFamilyPropertyCount<=0)
ERROR("Physical device has no queue families");
std::vector<VkQueueFamilyProperties> queueFamilyPropertiesVector(queueFamilyPropertyCount);
vkGetPhysicalDeviceQueueFamilyProperties(physicalDevice,&queueFamilyPropertyCount,queueFamilyPropertiesVector.data());
uint32_t queueFamilyIndex = 0;
int32_t selectedQueueFamilyIndex = -1;
VkBool32 presentSupport = VK_FALSE;
#ifdef _DEBUG
std::cout << std::endl << "--- Number of queue families " << queueFamilyPropertyCount << std::endl;
#endif // _DEBUG
for(const auto & queueFamProp : queueFamilyPropertiesVector) {
CHECK_RESULT(vkGetPhysicalDeviceSurfaceSupportKHR(physicalDevice, queueFamilyIndex, swapchain.surface, &presentSupport));
#ifdef _DEBUG
std::cout << "--- Properties for queue family " << queueFamilyIndex << std::endl;
std::cout << " queueFlags:";
if(queueFamProp.queueFlags & VK_QUEUE_GRAPHICS_BIT)
std::cout << " G";
if(queueFamProp.queueFlags & VK_QUEUE_COMPUTE_BIT)
std::cout << " C";
if(queueFamProp.queueFlags & VK_QUEUE_TRANSFER_BIT)
std::cout << " T";
if(queueFamProp.queueFlags & VK_QUEUE_SPARSE_BINDING_BIT)
std::cout << " S";
std::cout << '\n';
std::cout << " queueCount: " << queueFamProp.queueCount << std::endl;
std::cout << " timestampValidBits: " << queueFamProp.timestampValidBits << std::endl;
std::cout << " minImageTransferGranularity: " << queueFamProp.minImageTransferGranularity.width
<< ", " << queueFamProp.minImageTransferGranularity.height
<< ", " << queueFamProp.minImageTransferGranularity.depth
<< std::endl;
std::cout << " Supports present?: " << std::boolalpha << bool(presentSupport) << std::endl << std::endl;
#endif // _DEBUG
if (bool(queueFamProp.queueFlags & VK_QUEUE_GRAPHICS_BIT) && presentSupport == VK_TRUE) {
if (selectedQueueFamilyIndex < 0)
selectedQueueFamilyIndex = queueFamilyIndex;
}
queueFamilyIndex++;
}
if (selectedQueueFamilyIndex<0)
ERROR("No queue with both graphics and present capabilities found");
// Create device after selecting the queue
std::array<float,1> queuePriorities = {0.0f};
VkDeviceQueueCreateInfo queueCreateInfo = {
.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO,
.pNext = nullptr,
.flags = VK_FLAGS_NONE,
.queueFamilyIndex = (uint32_t) selectedQueueFamilyIndex,
.queueCount = 1, //Number of queues to create
.pQueuePriorities = queuePriorities.data()
};
// Call to createDevice
createDevice(queueCreateInfo,1);
//Get a handle to the selected queue
vkGetDeviceQueue(device, (uint32_t) selectedQueueFamilyIndex, 0, &queue); //TODO get handle if using multiple queues
queueFamilyIndex = (uint32_t) selectedQueueFamilyIndex;
}
void VulkanBase::createDevice(VkDeviceQueueCreateInfo requestedQueues, uint32_t requestedQueuesCount) {
//Check extensions available on the selected physical device before creating it
// Check swap chain extension
vkUtils::checkDeviceExtensionPresent(physicalDevice,VK_KHR_SWAPCHAIN_EXTENSION_NAME);
std::vector<const char*> enabledExtensions = {VK_KHR_SWAPCHAIN_EXTENSION_NAME};
VkDeviceCreateInfo deviceCreateInfo = {
.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO,
.pNext = nullptr,
.flags = VK_FLAGS_NONE,
.queueCreateInfoCount = requestedQueuesCount,
.pQueueCreateInfos = &requestedQueues,
.enabledLayerCount = 0,
.ppEnabledLayerNames = nullptr,
.enabledExtensionCount = (uint32_t) enabledExtensions.size(),
.ppEnabledExtensionNames = enabledExtensions.data(),
.pEnabledFeatures = NULL
};
#ifdef _DEBUG
if (enableValidation) {
deviceCreateInfo.enabledLayerCount = vkDebug::validationLayerCount;
deviceCreateInfo.ppEnabledLayerNames = vkDebug::validationLayerNames;
// Check standard debug layers are present on the device
for(uint32_t i = 0; i < deviceCreateInfo.enabledLayerCount; i++) {
vkUtils::checkGlobalLayerPresent(vkDebug::validationLayerNames[i]);
}
}
#endif // _DEBUG
CHECK_RESULT(vkCreateDevice(physicalDevice, &deviceCreateInfo, nullptr, &device));
}
void VulkanBase::createCommandPool(const uint32_t queueFamilyIndex, const VkCommandPoolCreateFlagBits createFlagBits) {
const VkCommandPoolCreateInfo commandPoolCreateInfo= {
.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO,
.pNext = NULL,
.flags = createFlagBits,
.queueFamilyIndex = queueFamilyIndex
};
CHECK_RESULT(vkCreateCommandPool(device, &commandPoolCreateInfo,nullptr,&commandPool));
#ifdef _DEBUG
std::cout << "\n+++ Created command pool" << std::endl;
#endif // _DEBUG
}
void VulkanBase::createSynchroItems()
{
// Semaphores
VkSemaphoreCreateInfo semaphoreCreateInfo = {
.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO,
.pNext = NULL,
.flags = VK_FLAGS_NONE
};
// Semaphore signaled on swapchain image ready to use and wait on the queue before rendering/present
CHECK_RESULT(vkCreateSemaphore(device, &semaphoreCreateInfo, nullptr, &imageAcquiredSemaphore));
// Semaphore signaled on queue rendering termination and waited on present operation
CHECK_RESULT(vkCreateSemaphore(device, &semaphoreCreateInfo, nullptr, &renderingCompletedSemaphore));
// Fences
VkFenceCreateInfo fenceCreateInfo = {
.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,
.pNext = NULL,
.flags = VK_FLAGS_NONE
};
CHECK_RESULT(vkCreateFence(device, &fenceCreateInfo, nullptr, &presentFence));
#ifdef _DEBUG
std::cout << "\n+++ Created semaphores and fences\n";
#endif // _DEBUG
}
void VulkanBase::createCommandBuffers(VkCommandBuffer* cmdBuffer, uint32_t commandBufferCount, VkCommandBufferLevel cmdBufferLevel)
{
const VkCommandBufferAllocateInfo commandBufferAllocateInfo = {
.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO,
.pNext = NULL,
.commandPool = commandPool,
.level = cmdBufferLevel,
.commandBufferCount = commandBufferCount
};
CHECK_RESULT(vkAllocateCommandBuffers(device, &commandBufferAllocateInfo, cmdBuffer));
#ifdef _DEBUG
std::cout << "\n+++ Allocated " << commandBufferCount << " command buffers" << std::endl;
#endif // _DEBUG
}
void VulkanBase::setupInitCommandBuffer()
{
VkCommandBufferBeginInfo commandBufferBeginInfo = {
.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
.pNext = NULL,
.flags = VK_FLAGS_NONE,
.pInheritanceInfo = NULL
};
CHECK_RESULT(vkBeginCommandBuffer(initCommandBuffer, &commandBufferBeginInfo));
// Creates an image memory barrier to change the layout for every image on the swapchain
VkImageMemoryBarrier imageMemoryBarrier = {
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
.pNext = NULL,
.srcAccessMask = VK_FLAGS_NONE,
.dstAccessMask = VK_FLAGS_NONE,
.oldLayout = VK_IMAGE_LAYOUT_UNDEFINED,
.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.image = 0,
.subresourceRange = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1}
};
// Pipeline Barrier for each swapchain image
for (const auto& image: swapchain.swapchainImagesVector){
imageMemoryBarrier.image = image;
vkCmdPipelineBarrier(initCommandBuffer, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, //Put barrier on top of the pipeline
VK_FLAGS_NONE,
0, nullptr, // memoryBarrier
0, nullptr, // bufferMemoryBarrier
1, &imageMemoryBarrier); // imageMemoryBarrier
}
CHECK_RESULT(vkEndCommandBuffer(initCommandBuffer));
#ifdef _DEBUG
std::cout << "\n+++ Finished recording initCommandBuffer\n";
#endif // _DEBUG
}
void VulkanBase::setupPresentCommandBuffer(const VkImage currentSwapchainImage, const float* clearColors)
{
VkCommandBufferBeginInfo commandBufferBeginInfo = {
.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
.pNext = NULL,
.flags = VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT,
.pInheritanceInfo = NULL
};
CHECK_RESULT(vkBeginCommandBuffer(presentCommandBuffer, &commandBufferBeginInfo));
VkImageMemoryBarrier imageMemoryBarrier = {
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
.pNext = NULL,
.srcAccessMask = VK_ACCESS_MEMORY_READ_BIT,
.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT,
.oldLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
.newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.image = currentSwapchainImage,
.subresourceRange = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1}
};
//Set barrier on top to change layout and access
vkCmdPipelineBarrier(presentCommandBuffer, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
VK_FLAGS_NONE, 0, nullptr, 0, nullptr, 1, &imageMemoryBarrier);
VkClearColorValue clearColorValue;
VkImageSubresourceRange imageSubresourceRange = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1};
clearColorValue.float32[0] = clearColors[0];
clearColorValue.float32[1] = clearColors[1];
clearColorValue.float32[2] = clearColors[2];
clearColorValue.float32[3] = 1.0f;
// Command to clear the swapchain image
vkCmdClearColorImage(presentCommandBuffer,currentSwapchainImage,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, &clearColorValue, 1, &imageSubresourceRange);
/*
* Transition the swapchain image from VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL
* to VK_IMAGE_LAYOUT_PRESENT_SRC_KHR
*/
imageMemoryBarrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
imageMemoryBarrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
imageMemoryBarrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT | VK_ACCESS_TRANSFER_WRITE_BIT;
imageMemoryBarrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
// Set barrier end of pipeline
vkCmdPipelineBarrier(presentCommandBuffer,
VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT,
0, 0, nullptr, 0, nullptr, 1, &imageMemoryBarrier
);
CHECK_RESULT(vkEndCommandBuffer(presentCommandBuffer));
#ifdef _DEBUG
//std::cout << "\n+++ Finished recording presentCommandBuffer\n";
#endif // _DEBUG
}
void VulkanBase::renderFrame(const float* clearColors)
{
// Wait on previous frame fence (render too fast)
//CHECK_RESULT(vkWaitForFences(device, 1, &presentFence, VK_TRUE, UINT64_MAX));
//CHECK_RESULT(vkResetFences(device, 1, &presentFence));
// Acquire next image on the swapchain
uint32_t imageIndex = UINT64_MAX;
CHECK_RESULT(vkAcquireNextImageKHR(device, swapchain.swapchain, UINT64_MAX, imageAcquiredSemaphore, VK_NULL_HANDLE, &imageIndex));
// Setup the present command buffer
setupPresentCommandBuffer(swapchain.swapchainImagesVector.at(imageIndex),clearColors);
// Submit present command buffer to the queue
// Waits on imageAcquiredSemaphore so it doesnt start rendering until the image from the swapchain is ready and
// it also signals the renderingCompletedSemaphore used by the later present
VkPipelineStageFlags pipelineStageFlags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo submitInfo = {
.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
.pNext = NULL,
.waitSemaphoreCount = 1,
.pWaitSemaphores = &imageAcquiredSemaphore,
.pWaitDstStageMask = &pipelineStageFlags,
.commandBufferCount = 1,
.pCommandBuffers = &presentCommandBuffer,
.signalSemaphoreCount = 1,
.pSignalSemaphores = &renderingCompletedSemaphore
};
CHECK_RESULT(vkQueueSubmit(queue, 1, &submitInfo, VK_NULL_HANDLE));
// Present the rendered image
VkPresentInfoKHR presentInfo = {
.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR,
.pNext = NULL,
.waitSemaphoreCount = 1,
.pWaitSemaphores = &renderingCompletedSemaphore,
.swapchainCount = 1,
.pSwapchains = &swapchain.swapchain,
.pImageIndices = &imageIndex,
.pResults = nullptr
};
CHECK_RESULT(vkQueuePresentKHR(queue,&presentInfo));
CHECK_RESULT(vkQueueWaitIdle(queue)); //TODO Not sure this is the correct way...
}
void VulkanBase::prepare()
{
//Allocate command Buffers
createCommandBuffers(&initCommandBuffer, 1, VK_COMMAND_BUFFER_LEVEL_PRIMARY);
createCommandBuffers(&presentCommandBuffer, 1, VK_COMMAND_BUFFER_LEVEL_PRIMARY);
commandBuffersVector.push_back(initCommandBuffer);
commandBuffersVector.push_back(presentCommandBuffer);
//Initialize command Buffers
setupInitCommandBuffer();
// Submit initialization command buffer to the queue
VkSubmitInfo submitInfo = {
.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
.pNext = nullptr,
.waitSemaphoreCount = 0,
.pWaitSemaphores = nullptr,
.pWaitDstStageMask = VK_FLAGS_NONE,
.commandBufferCount = 1,
.pCommandBuffers = &initCommandBuffer,
.signalSemaphoreCount = 0,
.pSignalSemaphores = nullptr
};
CHECK_RESULT(vkQueueSubmit(queue,1,&submitInfo, VK_NULL_HANDLE));
CHECK_RESULT(vkQueueWaitIdle(queue));
vkFreeCommandBuffers(device, commandPool, 1, &initCommandBuffer);
#ifdef _DEBUG
std::cout << "\n+++ initCommandBuffer work complete!\n";
std::cout << "\n******* Rendering Start ******\n";
#endif // _DEBUG
}
TextureCacheBase::TCacheEntryBase* TextureCache::CreateTexture(const TCacheEntryConfig& config)
{
static const VkFormat PC_TexFormat_To_VkFormat[12]
{
VK_FORMAT_R8G8B8A8_UNORM,//PC_TEX_FMT_NONE
VK_FORMAT_R8G8B8A8_UNORM,//PC_TEX_FMT_BGRA32
VK_FORMAT_R8G8B8A8_UNORM,//PC_TEX_FMT_RGBA32
VK_FORMAT_R8G8B8A8_UNORM,//PC_TEX_FMT_I4_AS_I8
VK_FORMAT_R8G8B8A8_UNORM,//PC_TEX_FMT_IA4_AS_IA8
VK_FORMAT_R8G8B8A8_UNORM,//PC_TEX_FMT_I8
VK_FORMAT_R8G8B8A8_UNORM,//PC_TEX_FMT_IA8
VK_FORMAT_R8G8B8A8_UNORM,//PC_TEX_FMT_RGB565
VK_FORMAT_BC1_RGBA_UNORM_BLOCK,//PC_TEX_FMT_DXT1
VK_FORMAT_BC2_UNORM_BLOCK,//PC_TEX_FMT_DXT3
VK_FORMAT_BC3_UNORM_BLOCK,//PC_TEX_FMT_DXT5
VK_FORMAT_R32_SFLOAT,//PC_TEX_FMT_R32
};
// Determine image usage, we need to flag as an attachment if it can be used as a rendertarget.
VkImageUsageFlags usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT |
VK_IMAGE_USAGE_SAMPLED_BIT;
if (config.rendertarget)
usage |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
// Allocate texture object
std::unique_ptr<Texture2D> texture = Texture2D::Create(
config.width, config.height, config.levels, config.layers, PC_TexFormat_To_VkFormat[config.pcformat],
VK_SAMPLE_COUNT_1_BIT, VK_IMAGE_VIEW_TYPE_2D_ARRAY, VK_IMAGE_TILING_OPTIMAL, usage);
if (!texture)
return nullptr;
// If this is a render target (for efb copies), allocate a framebuffer
VkFramebuffer framebuffer = VK_NULL_HANDLE;
if (config.rendertarget)
{
VkImageView framebuffer_attachments[] = { texture->GetView() };
VkFramebufferCreateInfo framebuffer_info = {
VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,
nullptr,
0,
m_render_pass,
static_cast<u32>(ArraySize(framebuffer_attachments)),
framebuffer_attachments,
texture->GetWidth(),
texture->GetHeight(),
texture->GetLayers() };
VkResult res = vkCreateFramebuffer(g_vulkan_context->GetDevice(), &framebuffer_info, nullptr,
&framebuffer);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateFramebuffer failed: ");
return nullptr;
}
// Clear render targets before use to prevent reading uninitialized memory.
VkClearColorValue clear_value = { { 0.0f, 0.0f, 0.0f, 1.0f } };
VkImageSubresourceRange clear_range = { VK_IMAGE_ASPECT_COLOR_BIT, 0, config.levels, 0,
config.layers };
texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentInitCommandBuffer(),
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
vkCmdClearColorImage(g_command_buffer_mgr->GetCurrentInitCommandBuffer(), texture->GetImage(),
texture->GetLayout(), &clear_value, 1, &clear_range);
}
std::unique_ptr<Texture2D> nrmtexture;
if (config.materialmap)
{
nrmtexture = Texture2D::Create(
config.width, config.height, config.levels, config.layers, PC_TexFormat_To_VkFormat[config.pcformat],
VK_SAMPLE_COUNT_1_BIT, VK_IMAGE_VIEW_TYPE_2D_ARRAY, VK_IMAGE_TILING_OPTIMAL, usage);
}
TCacheEntry* entry = new TCacheEntry(config, std::move(texture), std::move(nrmtexture), framebuffer);
entry->compressed = config.pcformat >= PC_TEX_FMT_DXT1 && config.pcformat < PC_TEX_FMT_R32;
return entry;
}
//==============================================================================
// 描画
//==============================================================================
void Render()
{
VkResult result;
VkCommandBuffer command = g_commandBuffers[g_currentBufferIndex];
//==================================================
// コマンド記録開始
//==================================================
VkCommandBufferInheritanceInfo commandBufferInheritanceInfo = {};
commandBufferInheritanceInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_INHERITANCE_INFO;
commandBufferInheritanceInfo.pNext = nullptr;
commandBufferInheritanceInfo.renderPass = nullptr;
commandBufferInheritanceInfo.subpass = 0;
commandBufferInheritanceInfo.framebuffer = g_frameBuffers[g_currentBufferIndex];
commandBufferInheritanceInfo.occlusionQueryEnable = VK_FALSE;
commandBufferInheritanceInfo.queryFlags = 0;
commandBufferInheritanceInfo.pipelineStatistics = 0;
VkCommandBufferBeginInfo cmdBeginInfo = {};
cmdBeginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
cmdBeginInfo.pNext = nullptr;
cmdBeginInfo.flags = 0;
cmdBeginInfo.pInheritanceInfo = &commandBufferInheritanceInfo;
vkBeginCommandBuffer(command, &cmdBeginInfo);
//==================================================
// カラーバッファをクリア
//==================================================
static float count = 0;
count += 0.0001f;
count = fmodf(count, 1.0f);
VkClearColorValue clearColor;
clearColor.float32[0] = 0.0f; // R
clearColor.float32[1] = count; // G
clearColor.float32[2] = 1.0f; // B
clearColor.float32[3] = 1.0f;
VkImageSubresourceRange imageSubresourceRange;
imageSubresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
imageSubresourceRange.baseMipLevel = 0;
imageSubresourceRange.levelCount = 1;
imageSubresourceRange.baseArrayLayer = 0;
imageSubresourceRange.layerCount = 1;
vkCmdClearColorImage(
command,
g_backBuffersTextures[g_currentBufferIndex].image,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
&clearColor,
1,
&imageSubresourceRange);
//==================================================
// 深度バッファをクリア
//==================================================
VkClearDepthStencilValue clearDepthStencil;
clearDepthStencil.depth = 1.0f;
clearDepthStencil.stencil = 0;
imageSubresourceRange.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT;
imageSubresourceRange.baseMipLevel = 0;
imageSubresourceRange.levelCount = 1;
imageSubresourceRange.baseArrayLayer = 0;
imageSubresourceRange.layerCount = 1;
vkCmdClearDepthStencilImage(
command,
g_depthBufferTexture.image,
VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
&clearDepthStencil,
1,
&imageSubresourceRange);
//==================================================
// リソースバリアの設定
//==================================================
VkImageMemoryBarrier imageMemoryBarrier;
imageMemoryBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
imageMemoryBarrier.pNext = nullptr;
imageMemoryBarrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
imageMemoryBarrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
imageMemoryBarrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
imageMemoryBarrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
imageMemoryBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
imageMemoryBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
imageMemoryBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
imageMemoryBarrier.subresourceRange.baseMipLevel = 0;
imageMemoryBarrier.subresourceRange.levelCount = 1;
imageMemoryBarrier.subresourceRange.baseArrayLayer = 0;
imageMemoryBarrier.subresourceRange.layerCount = 1;
imageMemoryBarrier.image = g_backBuffersTextures[g_currentBufferIndex].image;
vkCmdPipelineBarrier(
command,
VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT,
0,
0,
nullptr,
0,
nullptr,
1,
&imageMemoryBarrier);
//==================================================
// コマンドの記録を終了
//==================================================
vkEndCommandBuffer(command);
//==================================================
// コマンドを実行し，表示する
//==================================================
VkPipelineStageFlags pipeStageFlags = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
VkSubmitInfo submitInfo = {};
submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submitInfo.pNext = nullptr;
submitInfo.waitSemaphoreCount = 0;
submitInfo.pWaitSemaphores = nullptr;
submitInfo.pWaitDstStageMask = &pipeStageFlags;
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &command;
submitInfo.signalSemaphoreCount = 0;
submitInfo.pSignalSemaphores = nullptr;
// コマンドを実行
result = vkQueueSubmit(g_VulkanQueue, 1, &submitInfo, g_VulkanFence);
checkVulkanError(result, TEXT("グラフィックスキューへのサブミット失敗"));
// 完了を待機
result = vkWaitForFences(g_VulkanDevice, 1, &g_VulkanFence, VK_TRUE, TIMEOUT_NANO_SEC);
// 成功したら表示
if(result == VK_SUCCESS)
{
VkPresentInfoKHR present = {};
present.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present.pNext = nullptr;
present.swapchainCount = 1;
present.pSwapchains = &g_VulkanSwapChain;
present.pImageIndices = &g_currentBufferIndex;
present.pWaitSemaphores = nullptr;
present.waitSemaphoreCount = 0;
present.pResults = nullptr;
result = vkQueuePresentKHR(g_VulkanQueue, &present);
checkVulkanError(result, TEXT("プレゼント失敗"));
}
else if(result == VK_TIMEOUT)
{
checkVulkanError(VK_TIMEOUT, TEXT("タイムアウトしました"));
}
// フェンスをリセット
result = vkResetFences(g_VulkanDevice, 1, &g_VulkanFence);
checkVulkanError(result, TEXT("フェンスのリセット失敗"));
// 次のイメージを取得
result = vkAcquireNextImageKHR(
g_VulkanDevice,
g_VulkanSwapChain,
TIMEOUT_NANO_SEC,
g_VulkanSemahoreRenderComplete,
nullptr,
&g_currentBufferIndex);
checkVulkanError(result, TEXT("次の有効なイメージインデックスの獲得に失敗"));
}
