bool VulkanContext::CreateDevice(VkSurfaceKHR surface, bool enable_validation_layer)
{
u32 queue_family_count;
vkGetPhysicalDeviceQueueFamilyProperties(m_physical_device, &queue_family_count, nullptr);
if (queue_family_count == 0)
{
ERROR_LOG(VIDEO, "No queue families found on specified vulkan physical device.");
return false;
}
std::vector<VkQueueFamilyProperties> queue_family_properties(queue_family_count);
vkGetPhysicalDeviceQueueFamilyProperties(m_physical_device, &queue_family_count,
queue_family_properties.data());
INFO_LOG(VIDEO, "%u vulkan queue families", queue_family_count);
// Find graphics and present queues.
m_graphics_queue_family_index = queue_family_count;
m_present_queue_family_index = queue_family_count;
for (uint32_t i = 0; i < queue_family_count; i++)
{
VkBool32 graphics_supported = queue_family_properties[i].queueFlags & VK_QUEUE_GRAPHICS_BIT;
if (graphics_supported)
{
m_graphics_queue_family_index = i;
// Quit now, no need for a present queue.
if (!surface)
{
break;
}
}
if (surface)
{
VkBool32 present_supported;
VkResult res =
vkGetPhysicalDeviceSurfaceSupportKHR(m_physical_device, i, surface, &present_supported);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkGetPhysicalDeviceSurfaceSupportKHR failed: ");
return false;
}
if (present_supported)
{
m_present_queue_family_index = i;
}
// Prefer one queue family index that does both graphics and present.
if (graphics_supported && present_supported)
{
break;
}
}
}
if (m_graphics_queue_family_index == queue_family_count)
{
ERROR_LOG(VIDEO, "Vulkan: Failed to find an acceptable graphics queue.");
return false;
}
if (surface && m_present_queue_family_index == queue_family_count)
{
ERROR_LOG(VIDEO, "Vulkan: Failed to find an acceptable present queue.");
return false;
}
VkDeviceCreateInfo device_info = {};
device_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
device_info.pNext = nullptr;
device_info.flags = 0;
static constexpr float queue_priorities[] = {1.0f};
VkDeviceQueueCreateInfo graphics_queue_info = {};
graphics_queue_info.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
graphics_queue_info.pNext = nullptr;
graphics_queue_info.flags = 0;
graphics_queue_info.queueFamilyIndex = m_graphics_queue_family_index;
graphics_queue_info.queueCount = 1;
graphics_queue_info.pQueuePriorities = queue_priorities;
VkDeviceQueueCreateInfo present_queue_info = {};
present_queue_info.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
present_queue_info.pNext = nullptr;
present_queue_info.flags = 0;
present_queue_info.queueFamilyIndex = m_present_queue_family_index;
present_queue_info.queueCount = 1;
present_queue_info.pQueuePriorities = queue_priorities;
std::array<VkDeviceQueueCreateInfo, 2> queue_infos = {{
graphics_queue_info,
present_queue_info,
}};
device_info.queueCreateInfoCount = 1;
if (m_graphics_queue_family_index != m_present_queue_family_index)
{
device_info.queueCreateInfoCount = 2;
}
device_info.pQueueCreateInfos = queue_infos.data();
ExtensionList enabled_extensions;
if (!SelectDeviceExtensions(&enabled_extensions, surface != VK_NULL_HANDLE))
return false;
device_info.enabledLayerCount = 0;
device_info.ppEnabledLayerNames = nullptr;
device_info.enabledExtensionCount = static_cast<uint32_t>(enabled_extensions.size());
device_info.ppEnabledExtensionNames = enabled_extensions.data();
// Check for required features before creating.
if (!SelectDeviceFeatures())
return false;
device_info.pEnabledFeatures = &m_device_features;
// Enable debug layer on debug builds
if (enable_validation_layer)
{
static const char* layer_names[] = {"VK_LAYER_LUNARG_standard_validation"};
device_info.enabledLayerCount = 1;
device_info.ppEnabledLayerNames = layer_names;
}
VkResult res = vkCreateDevice(m_physical_device, &device_info, nullptr, &m_device);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateDevice failed: ");
return false;
}
// With the device created, we can fill the remaining entry points.
if (!LoadVulkanDeviceFunctions(m_device))
return false;
// Grab the graphics and present queues.
vkGetDeviceQueue(m_device, m_graphics_queue_family_index, 0, &m_graphics_queue);
if (surface)
{
vkGetDeviceQueue(m_device, m_present_queue_family_index, 0, &m_present_queue);
}
return true;
}
bool VulkanContext::CreateDevice(VkSurfaceKHR surface, bool enable_validation_layer)
{
u32 queue_family_count;
vkGetPhysicalDeviceQueueFamilyProperties(m_physical_device, &queue_family_count, nullptr);
if (queue_family_count == 0)
{
ERROR_LOG(VIDEO, "No queue families found on specified vulkan physical device.");
return false;
}
std::vector<VkQueueFamilyProperties> queue_family_properties(queue_family_count);
vkGetPhysicalDeviceQueueFamilyProperties(m_physical_device, &queue_family_count,
queue_family_properties.data());
INFO_LOG(VIDEO, "%u vulkan queue families", queue_family_count);
// Find a graphics queue
// Currently we only use a single queue for both graphics and presenting.
// TODO: In the future we could do post-processing and presenting on a different queue.
m_graphics_queue_family_index = queue_family_count;
for (uint32_t i = 0; i < queue_family_count; i++)
{
if (queue_family_properties[i].queueFlags & VK_QUEUE_GRAPHICS_BIT)
{
// Check that it can present to our surface from this queue
if (surface)
{
VkBool32 present_supported;
VkResult res =
vkGetPhysicalDeviceSurfaceSupportKHR(m_physical_device, i, surface, &present_supported);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkGetPhysicalDeviceSurfaceSupportKHR failed: ");
return false;
}
if (present_supported)
{
m_graphics_queue_family_index = i;
break;
}
}
else
{
// We don't need present, so any graphics queue will do.
m_graphics_queue_family_index = i;
break;
}
}
}
if (m_graphics_queue_family_index == queue_family_count)
{
ERROR_LOG(VIDEO, "Vulkan: Failed to find an acceptable graphics queue.");
return false;
}
VkDeviceCreateInfo device_info = {};
device_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
device_info.pNext = nullptr;
device_info.flags = 0;
static constexpr float queue_priorities[] = {1.0f};
VkDeviceQueueCreateInfo queue_info = {};
queue_info.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
queue_info.pNext = nullptr;
queue_info.flags = 0;
queue_info.queueFamilyIndex = m_graphics_queue_family_index;
queue_info.queueCount = 1;
queue_info.pQueuePriorities = queue_priorities;
device_info.queueCreateInfoCount = 1;
device_info.pQueueCreateInfos = &queue_info;
ExtensionList enabled_extensions;
if (!SelectDeviceExtensions(&enabled_extensions, (surface != VK_NULL_HANDLE),
enable_validation_layer))
return false;
device_info.enabledLayerCount = 0;
device_info.ppEnabledLayerNames = nullptr;
device_info.enabledExtensionCount = static_cast<uint32_t>(enabled_extensions.size());
device_info.ppEnabledExtensionNames = enabled_extensions.data();
// Check for required features before creating.
if (!SelectDeviceFeatures())
return false;
device_info.pEnabledFeatures = &m_device_features;
// Enable debug layer on debug builds
if (enable_validation_layer)
{
static const char* layer_names[] = {"VK_LAYER_LUNARG_standard_validation"};
device_info.enabledLayerCount = 1;
device_info.ppEnabledLayerNames = layer_names;
}
VkResult res = vkCreateDevice(m_physical_device, &device_info, nullptr, &m_device);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateDevice failed: ");
return false;
}
// With the device created, we can fill the remaining entry points.
if (!LoadVulkanDeviceFunctions(m_device))
return false;
// Grab the graphics queue (only one we're using at this point).
vkGetDeviceQueue(m_device, m_graphics_queue_family_index, 0, &m_graphics_queue);
return true;
}