godot/drivers/vulkan/vulkan_context.cpp
Rémi Verschelde 0be6d925dc Style: clang-format: Disable KeepEmptyLinesAtTheStartOfBlocks
Which means that reduz' beloved style which we all became used to
will now be changed automatically to remove the first empty line.

This makes us lean closer to 1TBS (the one true brace style) instead
of hybridating it with some Allman-inspired spacing.

There's still the case of braces around single-statement blocks that
needs to be addressed (but clang-format can't help with that, but
clang-tidy may if we agree about it).

Part of #33027.
2020-05-14 16:54:55 +02:00

1597 lines
58 KiB
C++

/*************************************************************************/
/* vulkan_context.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "vulkan_context.h"
#include "core/engine.h"
#include "core/project_settings.h"
#include "core/ustring.h"
#include "core/version.h"
#include "vk_enum_string_helper.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
#define APP_SHORT_NAME "GodotEngine"
VKAPI_ATTR VkBool32 VKAPI_CALL VulkanContext::_debug_messenger_callback(
VkDebugUtilsMessageSeverityFlagBitsEXT messageSeverity,
VkDebugUtilsMessageTypeFlagsEXT messageType,
const VkDebugUtilsMessengerCallbackDataEXT *pCallbackData,
void *pUserData) {
// This error needs to be ignored because the AMD allocator will mix up memory types on IGP processors.
if (strstr(pCallbackData->pMessage, "Mapping an image with layout") != nullptr &&
strstr(pCallbackData->pMessage, "can result in undefined behavior if this memory is used by the device") != nullptr) {
return VK_FALSE;
}
// This needs to be ignored because Validator is wrong here.
if (strstr(pCallbackData->pMessage, "SPIR-V module not valid: Pointer operand") != nullptr &&
strstr(pCallbackData->pMessage, "must be a memory object") != nullptr) {
return VK_FALSE;
}
// Workaround for Vulkan-Loader usability bug: https://github.com/KhronosGroup/Vulkan-Loader/issues/262.
if (strstr(pCallbackData->pMessage, "wrong ELF class: ELFCLASS32") != nullptr) {
return VK_FALSE;
}
if (pCallbackData->pMessageIdName && strstr(pCallbackData->pMessageIdName, "UNASSIGNED-CoreValidation-DrawState-ClearCmdBeforeDraw") != nullptr) {
return VK_FALSE;
}
String type_string;
switch (messageType) {
case (VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT):
type_string = "GENERAL";
break;
case (VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT):
type_string = "VALIDATION";
break;
case (VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT):
type_string = "PERFORMANCE";
break;
case (VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT & VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT):
type_string = "VALIDATION|PERFORMANCE";
break;
}
String objects_string;
if (pCallbackData->objectCount > 0) {
objects_string = "\n\tObjects - " + String::num_int64(pCallbackData->objectCount);
for (uint32_t object = 0; object < pCallbackData->objectCount; ++object) {
objects_string +=
"\n\t\tObject[" + String::num_int64(object) + "]" +
" - " + string_VkObjectType(pCallbackData->pObjects[object].objectType) +
", Handle " + String::num_int64(pCallbackData->pObjects[object].objectHandle);
if (nullptr != pCallbackData->pObjects[object].pObjectName && strlen(pCallbackData->pObjects[object].pObjectName) > 0) {
objects_string += ", Name \"" + String(pCallbackData->pObjects[object].pObjectName) + "\"";
}
}
}
String labels_string;
if (pCallbackData->cmdBufLabelCount > 0) {
labels_string = "\n\tCommand Buffer Labels - " + String::num_int64(pCallbackData->cmdBufLabelCount);
for (uint32_t cmd_buf_label = 0; cmd_buf_label < pCallbackData->cmdBufLabelCount; ++cmd_buf_label) {
labels_string +=
"\n\t\tLabel[" + String::num_int64(cmd_buf_label) + "]" +
" - " + pCallbackData->pCmdBufLabels[cmd_buf_label].pLabelName +
"{ ";
for (int color_idx = 0; color_idx < 4; ++color_idx) {
labels_string += String::num(pCallbackData->pCmdBufLabels[cmd_buf_label].color[color_idx]);
if (color_idx < 3) {
labels_string += ", ";
}
}
labels_string += " }";
}
}
String error_message(type_string +
" - Message Id Number: " + String::num_int64(pCallbackData->messageIdNumber) +
" | Message Id Name: " + pCallbackData->pMessageIdName +
"\n\t" + pCallbackData->pMessage +
objects_string + labels_string);
// Convert VK severity to our own log macros.
switch (messageSeverity) {
case VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT:
print_verbose(error_message);
break;
case VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT:
print_line(error_message);
break;
case VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT:
WARN_PRINT(error_message);
break;
case VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT:
ERR_PRINT(error_message);
CRASH_COND_MSG(Engine::get_singleton()->is_abort_on_gpu_errors_enabled(),
"Crashing, because abort on GPU errors is enabled.");
break;
case VK_DEBUG_UTILS_MESSAGE_SEVERITY_FLAG_BITS_MAX_ENUM_EXT:
break; // Shouldn't happen, only handling to make compilers happy.
}
return VK_FALSE;
}
VkBool32 VulkanContext::_check_layers(uint32_t check_count, const char **check_names, uint32_t layer_count, VkLayerProperties *layers) {
for (uint32_t i = 0; i < check_count; i++) {
VkBool32 found = 0;
for (uint32_t j = 0; j < layer_count; j++) {
if (!strcmp(check_names[i], layers[j].layerName)) {
found = 1;
break;
}
}
if (!found) {
ERR_PRINT("Cant find layer: " + String(check_names[i]));
return 0;
}
}
return 1;
}
Error VulkanContext::_create_validation_layers() {
VkResult err;
const char *instance_validation_layers_alt1[] = { "VK_LAYER_KHRONOS_validation" };
const char *instance_validation_layers_alt2[] = { "VK_LAYER_LUNARG_standard_validation" };
const char *instance_validation_layers_alt3[] = { "VK_LAYER_GOOGLE_threading", "VK_LAYER_LUNARG_parameter_validation", "VK_LAYER_LUNARG_object_tracker", "VK_LAYER_LUNARG_core_validation", "VK_LAYER_GOOGLE_unique_objects" };
uint32_t instance_layer_count = 0;
err = vkEnumerateInstanceLayerProperties(&instance_layer_count, nullptr);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
VkBool32 validation_found = 0;
uint32_t validation_layer_count = 0;
const char **instance_validation_layers = nullptr;
if (instance_layer_count > 0) {
VkLayerProperties *instance_layers = (VkLayerProperties *)malloc(sizeof(VkLayerProperties) * instance_layer_count);
err = vkEnumerateInstanceLayerProperties(&instance_layer_count, instance_layers);
if (err) {
free(instance_layers);
ERR_FAIL_V(ERR_CANT_CREATE);
}
validation_layer_count = ARRAY_SIZE(instance_validation_layers_alt1);
instance_validation_layers = instance_validation_layers_alt1;
validation_found = _check_layers(validation_layer_count, instance_validation_layers, instance_layer_count, instance_layers);
// use alternative (deprecated, removed in SDK 1.1.126.0) set of validation layers
if (!validation_found) {
validation_layer_count = ARRAY_SIZE(instance_validation_layers_alt2);
instance_validation_layers = instance_validation_layers_alt2;
validation_found = _check_layers(validation_layer_count, instance_validation_layers, instance_layer_count, instance_layers);
}
// use alternative (deprecated, removed in SDK 1.1.121.1) set of validation layers
if (!validation_found) {
validation_layer_count = ARRAY_SIZE(instance_validation_layers_alt3);
instance_validation_layers = instance_validation_layers_alt3;
validation_found = _check_layers(validation_layer_count, instance_validation_layers, instance_layer_count, instance_layers);
}
free(instance_layers);
}
if (validation_found) {
enabled_layer_count = validation_layer_count;
for (uint32_t i = 0; i < validation_layer_count; i++) {
enabled_layers[i] = instance_validation_layers[i];
}
} else {
return ERR_CANT_CREATE;
}
return OK;
}
Error VulkanContext::_initialize_extensions() {
VkResult err;
uint32_t instance_extension_count = 0;
enabled_extension_count = 0;
enabled_layer_count = 0;
/* Look for instance extensions */
VkBool32 surfaceExtFound = 0;
VkBool32 platformSurfaceExtFound = 0;
memset(extension_names, 0, sizeof(extension_names));
err = vkEnumerateInstanceExtensionProperties(nullptr, &instance_extension_count, nullptr);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
if (instance_extension_count > 0) {
VkExtensionProperties *instance_extensions = (VkExtensionProperties *)malloc(sizeof(VkExtensionProperties) * instance_extension_count);
err = vkEnumerateInstanceExtensionProperties(nullptr, &instance_extension_count, instance_extensions);
if (err) {
free(instance_extensions);
ERR_FAIL_V(ERR_CANT_CREATE);
}
for (uint32_t i = 0; i < instance_extension_count; i++) {
if (!strcmp(VK_KHR_SURFACE_EXTENSION_NAME, instance_extensions[i].extensionName)) {
surfaceExtFound = 1;
extension_names[enabled_extension_count++] = VK_KHR_SURFACE_EXTENSION_NAME;
}
if (!strcmp(_get_platform_surface_extension(), instance_extensions[i].extensionName)) {
platformSurfaceExtFound = 1;
extension_names[enabled_extension_count++] = _get_platform_surface_extension();
}
if (!strcmp(VK_EXT_DEBUG_REPORT_EXTENSION_NAME, instance_extensions[i].extensionName)) {
if (use_validation_layers) {
extension_names[enabled_extension_count++] = VK_EXT_DEBUG_REPORT_EXTENSION_NAME;
}
}
if (!strcmp(VK_EXT_DEBUG_UTILS_EXTENSION_NAME, instance_extensions[i].extensionName)) {
if (use_validation_layers) {
extension_names[enabled_extension_count++] = VK_EXT_DEBUG_UTILS_EXTENSION_NAME;
}
}
if (enabled_extension_count >= MAX_EXTENSIONS) {
free(instance_extensions);
ERR_FAIL_V_MSG(ERR_BUG, "Enabled extension count reaches MAX_EXTENSIONS, BUG");
}
}
free(instance_extensions);
}
ERR_FAIL_COND_V_MSG(!surfaceExtFound, ERR_CANT_CREATE, "No surface extension found, is a driver installed?");
ERR_FAIL_COND_V_MSG(!platformSurfaceExtFound, ERR_CANT_CREATE, "No platform surface extension found, is a driver installed?");
return OK;
}
Error VulkanContext::_create_physical_device() {
/* Look for validation layers */
if (use_validation_layers) {
_create_validation_layers();
}
{
Error err = _initialize_extensions();
if (err != OK) {
return err;
}
}
CharString cs = ProjectSettings::get_singleton()->get("application/config/name").operator String().utf8();
String name = "GodotEngine " + String(VERSION_FULL_NAME);
CharString namecs = name.utf8();
const VkApplicationInfo app = {
/*sType*/ VK_STRUCTURE_TYPE_APPLICATION_INFO,
/*pNext*/ nullptr,
/*pApplicationName*/ cs.get_data(),
/*applicationVersion*/ 0,
/*pEngineName*/ namecs.get_data(),
/*engineVersion*/ 0,
/*apiVersion*/ VK_API_VERSION_1_0,
};
VkInstanceCreateInfo inst_info = {
/*sType*/ VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
/*pNext*/ nullptr,
/*flags*/ 0,
/*pApplicationInfo*/ &app,
/*enabledLayerCount*/ enabled_layer_count,
/*ppEnabledLayerNames*/ (const char *const *)instance_validation_layers,
/*enabledExtensionCount*/ enabled_extension_count,
/*ppEnabledExtensionNames*/ (const char *const *)extension_names,
};
/*
* This is info for a temp callback to use during CreateInstance.
* After the instance is created, we use the instance-based
* function to register the final callback.
*/
VkDebugUtilsMessengerCreateInfoEXT dbg_messenger_create_info;
if (use_validation_layers) {
// VK_EXT_debug_utils style
dbg_messenger_create_info.sType = VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT;
dbg_messenger_create_info.pNext = nullptr;
dbg_messenger_create_info.flags = 0;
dbg_messenger_create_info.messageSeverity =
VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT | VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT;
dbg_messenger_create_info.messageType = VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT |
VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT |
VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT;
dbg_messenger_create_info.pfnUserCallback = _debug_messenger_callback;
dbg_messenger_create_info.pUserData = this;
inst_info.pNext = &dbg_messenger_create_info;
}
uint32_t gpu_count;
VkResult err = vkCreateInstance(&inst_info, nullptr, &inst);
ERR_FAIL_COND_V_MSG(err == VK_ERROR_INCOMPATIBLE_DRIVER, ERR_CANT_CREATE,
"Cannot find a compatible Vulkan installable client driver (ICD).\n\n"
"vkCreateInstance Failure");
ERR_FAIL_COND_V_MSG(err == VK_ERROR_EXTENSION_NOT_PRESENT, ERR_CANT_CREATE,
"Cannot find a specified extension library.\n"
"Make sure your layers path is set appropriately.\n"
"vkCreateInstance Failure");
ERR_FAIL_COND_V_MSG(err, ERR_CANT_CREATE,
"vkCreateInstance failed.\n\n"
"Do you have a compatible Vulkan installable client driver (ICD) installed?\n"
"Please look at the Getting Started guide for additional information.\n"
"vkCreateInstance Failure");
/* Make initial call to query gpu_count, then second call for gpu info*/
err = vkEnumeratePhysicalDevices(inst, &gpu_count, nullptr);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
ERR_FAIL_COND_V_MSG(gpu_count == 0, ERR_CANT_CREATE,
"vkEnumeratePhysicalDevices reported zero accessible devices.\n\n"
"Do you have a compatible Vulkan installable client driver (ICD) installed?\n"
"vkEnumeratePhysicalDevices Failure");
VkPhysicalDevice *physical_devices = (VkPhysicalDevice *)malloc(sizeof(VkPhysicalDevice) * gpu_count);
err = vkEnumeratePhysicalDevices(inst, &gpu_count, physical_devices);
if (err) {
free(physical_devices);
ERR_FAIL_V(ERR_CANT_CREATE);
}
/* for now, just grab the first physical device */
gpu = physical_devices[0];
free(physical_devices);
/* Look for device extensions */
uint32_t device_extension_count = 0;
VkBool32 swapchainExtFound = 0;
enabled_extension_count = 0;
memset(extension_names, 0, sizeof(extension_names));
err = vkEnumerateDeviceExtensionProperties(gpu, nullptr, &device_extension_count, nullptr);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
if (device_extension_count > 0) {
VkExtensionProperties *device_extensions = (VkExtensionProperties *)malloc(sizeof(VkExtensionProperties) * device_extension_count);
err = vkEnumerateDeviceExtensionProperties(gpu, nullptr, &device_extension_count, device_extensions);
if (err) {
free(device_extensions);
ERR_FAIL_V(ERR_CANT_CREATE);
}
for (uint32_t i = 0; i < device_extension_count; i++) {
if (!strcmp(VK_KHR_SWAPCHAIN_EXTENSION_NAME, device_extensions[i].extensionName)) {
swapchainExtFound = 1;
extension_names[enabled_extension_count++] = VK_KHR_SWAPCHAIN_EXTENSION_NAME;
}
if (enabled_extension_count >= MAX_EXTENSIONS) {
free(device_extensions);
ERR_FAIL_V_MSG(ERR_BUG, "Enabled extension count reaches MAX_EXTENSIONS, BUG");
}
}
if (VK_KHR_incremental_present_enabled) {
// Even though the user "enabled" the extension via the command
// line, we must make sure that it's enumerated for use with the
// device. Therefore, disable it here, and re-enable it again if
// enumerated.
VK_KHR_incremental_present_enabled = false;
for (uint32_t i = 0; i < device_extension_count; i++) {
if (!strcmp(VK_KHR_INCREMENTAL_PRESENT_EXTENSION_NAME, device_extensions[i].extensionName)) {
extension_names[enabled_extension_count++] = VK_KHR_INCREMENTAL_PRESENT_EXTENSION_NAME;
VK_KHR_incremental_present_enabled = true;
}
if (enabled_extension_count >= MAX_EXTENSIONS) {
free(device_extensions);
ERR_FAIL_V_MSG(ERR_BUG, "Enabled extension count reaches MAX_EXTENSIONS, BUG");
}
}
}
if (VK_GOOGLE_display_timing_enabled) {
// Even though the user "enabled" the extension via the command
// line, we must make sure that it's enumerated for use with the
// device. Therefore, disable it here, and re-enable it again if
// enumerated.
VK_GOOGLE_display_timing_enabled = false;
for (uint32_t i = 0; i < device_extension_count; i++) {
if (!strcmp(VK_GOOGLE_DISPLAY_TIMING_EXTENSION_NAME, device_extensions[i].extensionName)) {
extension_names[enabled_extension_count++] = VK_GOOGLE_DISPLAY_TIMING_EXTENSION_NAME;
VK_GOOGLE_display_timing_enabled = true;
}
if (enabled_extension_count >= MAX_EXTENSIONS) {
free(device_extensions);
ERR_FAIL_V_MSG(ERR_BUG, "Enabled extension count reaches MAX_EXTENSIONS, BUG");
}
}
}
free(device_extensions);
}
ERR_FAIL_COND_V_MSG(!swapchainExtFound, ERR_CANT_CREATE,
"vkEnumerateDeviceExtensionProperties failed to find the " VK_KHR_SWAPCHAIN_EXTENSION_NAME
" extension.\n\nDo you have a compatible Vulkan installable client driver (ICD) installed?\n"
"vkCreateInstance Failure");
if (use_validation_layers) {
// Setup VK_EXT_debug_utils function pointers always (we use them for
// debug labels and names).
CreateDebugUtilsMessengerEXT =
(PFN_vkCreateDebugUtilsMessengerEXT)vkGetInstanceProcAddr(inst, "vkCreateDebugUtilsMessengerEXT");
DestroyDebugUtilsMessengerEXT =
(PFN_vkDestroyDebugUtilsMessengerEXT)vkGetInstanceProcAddr(inst, "vkDestroyDebugUtilsMessengerEXT");
SubmitDebugUtilsMessageEXT =
(PFN_vkSubmitDebugUtilsMessageEXT)vkGetInstanceProcAddr(inst, "vkSubmitDebugUtilsMessageEXT");
CmdBeginDebugUtilsLabelEXT =
(PFN_vkCmdBeginDebugUtilsLabelEXT)vkGetInstanceProcAddr(inst, "vkCmdBeginDebugUtilsLabelEXT");
CmdEndDebugUtilsLabelEXT =
(PFN_vkCmdEndDebugUtilsLabelEXT)vkGetInstanceProcAddr(inst, "vkCmdEndDebugUtilsLabelEXT");
CmdInsertDebugUtilsLabelEXT =
(PFN_vkCmdInsertDebugUtilsLabelEXT)vkGetInstanceProcAddr(inst, "vkCmdInsertDebugUtilsLabelEXT");
SetDebugUtilsObjectNameEXT =
(PFN_vkSetDebugUtilsObjectNameEXT)vkGetInstanceProcAddr(inst, "vkSetDebugUtilsObjectNameEXT");
if (nullptr == CreateDebugUtilsMessengerEXT || nullptr == DestroyDebugUtilsMessengerEXT ||
nullptr == SubmitDebugUtilsMessageEXT || nullptr == CmdBeginDebugUtilsLabelEXT ||
nullptr == CmdEndDebugUtilsLabelEXT || nullptr == CmdInsertDebugUtilsLabelEXT ||
nullptr == SetDebugUtilsObjectNameEXT) {
ERR_FAIL_V_MSG(ERR_CANT_CREATE,
"GetProcAddr: Failed to init VK_EXT_debug_utils\n"
"GetProcAddr: Failure");
}
err = CreateDebugUtilsMessengerEXT(inst, &dbg_messenger_create_info, nullptr, &dbg_messenger);
switch (err) {
case VK_SUCCESS:
break;
case VK_ERROR_OUT_OF_HOST_MEMORY:
ERR_FAIL_V_MSG(ERR_CANT_CREATE,
"CreateDebugUtilsMessengerEXT: out of host memory\n"
"CreateDebugUtilsMessengerEXT Failure");
break;
default:
ERR_FAIL_V_MSG(ERR_CANT_CREATE,
"CreateDebugUtilsMessengerEXT: unknown failure\n"
"CreateDebugUtilsMessengerEXT Failure");
ERR_FAIL_V(ERR_CANT_CREATE);
break;
}
}
vkGetPhysicalDeviceProperties(gpu, &gpu_props);
/* Call with NULL data to get count */
vkGetPhysicalDeviceQueueFamilyProperties(gpu, &queue_family_count, nullptr);
ERR_FAIL_COND_V(queue_family_count == 0, ERR_CANT_CREATE);
queue_props = (VkQueueFamilyProperties *)malloc(queue_family_count * sizeof(VkQueueFamilyProperties));
vkGetPhysicalDeviceQueueFamilyProperties(gpu, &queue_family_count, queue_props);
// Query fine-grained feature support for this device.
// If app has specific feature requirements it should check supported
// features based on this query
vkGetPhysicalDeviceFeatures(gpu, &physical_device_features);
#define GET_INSTANCE_PROC_ADDR(inst, entrypoint) \
{ \
fp##entrypoint = (PFN_vk##entrypoint)vkGetInstanceProcAddr(inst, "vk" #entrypoint); \
ERR_FAIL_COND_V_MSG(fp##entrypoint == nullptr, ERR_CANT_CREATE, \
"vkGetInstanceProcAddr failed to find vk" #entrypoint); \
}
GET_INSTANCE_PROC_ADDR(inst, GetPhysicalDeviceSurfaceSupportKHR);
GET_INSTANCE_PROC_ADDR(inst, GetPhysicalDeviceSurfaceCapabilitiesKHR);
GET_INSTANCE_PROC_ADDR(inst, GetPhysicalDeviceSurfaceFormatsKHR);
GET_INSTANCE_PROC_ADDR(inst, GetPhysicalDeviceSurfacePresentModesKHR);
GET_INSTANCE_PROC_ADDR(inst, GetSwapchainImagesKHR);
return OK;
}
Error VulkanContext::_create_device() {
VkResult err;
float queue_priorities[1] = { 0.0 };
VkDeviceQueueCreateInfo queues[2];
queues[0].sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
queues[0].pNext = nullptr;
queues[0].queueFamilyIndex = graphics_queue_family_index;
queues[0].queueCount = 1;
queues[0].pQueuePriorities = queue_priorities;
queues[0].flags = 0;
VkDeviceCreateInfo sdevice = {
/*sType*/ VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO,
/*pNext*/ nullptr,
/*flags*/ 0,
/*queueCreateInfoCount*/ 1,
/*pQueueCreateInfos*/ queues,
/*enabledLayerCount*/ 0,
/*ppEnabledLayerNames*/ nullptr,
/*enabledExtensionCount*/ enabled_extension_count,
/*ppEnabledExtensionNames*/ (const char *const *)extension_names,
/*pEnabledFeatures*/ &physical_device_features, // If specific features are required, pass them in here
};
if (separate_present_queue) {
queues[1].sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
queues[1].pNext = nullptr;
queues[1].queueFamilyIndex = present_queue_family_index;
queues[1].queueCount = 1;
queues[1].pQueuePriorities = queue_priorities;
queues[1].flags = 0;
sdevice.queueCreateInfoCount = 2;
}
err = vkCreateDevice(gpu, &sdevice, nullptr, &device);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
return OK;
}
Error VulkanContext::_initialize_queues(VkSurfaceKHR surface) {
// Iterate over each queue to learn whether it supports presenting:
VkBool32 *supportsPresent = (VkBool32 *)malloc(queue_family_count * sizeof(VkBool32));
for (uint32_t i = 0; i < queue_family_count; i++) {
fpGetPhysicalDeviceSurfaceSupportKHR(gpu, i, surface, &supportsPresent[i]);
}
// Search for a graphics and a present queue in the array of queue
// families, try to find one that supports both
uint32_t graphicsQueueFamilyIndex = UINT32_MAX;
uint32_t presentQueueFamilyIndex = UINT32_MAX;
for (uint32_t i = 0; i < queue_family_count; i++) {
if ((queue_props[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) != 0) {
if (graphicsQueueFamilyIndex == UINT32_MAX) {
graphicsQueueFamilyIndex = i;
}
if (supportsPresent[i] == VK_TRUE) {
graphicsQueueFamilyIndex = i;
presentQueueFamilyIndex = i;
break;
}
}
}
if (presentQueueFamilyIndex == UINT32_MAX) {
// If didn't find a queue that supports both graphics and present, then
// find a separate present queue.
for (uint32_t i = 0; i < queue_family_count; ++i) {
if (supportsPresent[i] == VK_TRUE) {
presentQueueFamilyIndex = i;
break;
}
}
}
free(supportsPresent);
// Generate error if could not find both a graphics and a present queue
ERR_FAIL_COND_V_MSG(graphicsQueueFamilyIndex == UINT32_MAX || presentQueueFamilyIndex == UINT32_MAX, ERR_CANT_CREATE,
"Could not find both graphics and present queues\n");
graphics_queue_family_index = graphicsQueueFamilyIndex;
present_queue_family_index = presentQueueFamilyIndex;
separate_present_queue = (graphics_queue_family_index != present_queue_family_index);
_create_device();
static PFN_vkGetDeviceProcAddr g_gdpa = nullptr;
#define GET_DEVICE_PROC_ADDR(dev, entrypoint) \
{ \
if (!g_gdpa) \
g_gdpa = (PFN_vkGetDeviceProcAddr)vkGetInstanceProcAddr(inst, "vkGetDeviceProcAddr"); \
fp##entrypoint = (PFN_vk##entrypoint)g_gdpa(dev, "vk" #entrypoint); \
ERR_FAIL_COND_V_MSG(fp##entrypoint == nullptr, ERR_CANT_CREATE, \
"vkGetDeviceProcAddr failed to find vk" #entrypoint); \
}
GET_DEVICE_PROC_ADDR(device, CreateSwapchainKHR);
GET_DEVICE_PROC_ADDR(device, DestroySwapchainKHR);
GET_DEVICE_PROC_ADDR(device, GetSwapchainImagesKHR);
GET_DEVICE_PROC_ADDR(device, AcquireNextImageKHR);
GET_DEVICE_PROC_ADDR(device, QueuePresentKHR);
if (VK_GOOGLE_display_timing_enabled) {
GET_DEVICE_PROC_ADDR(device, GetRefreshCycleDurationGOOGLE);
GET_DEVICE_PROC_ADDR(device, GetPastPresentationTimingGOOGLE);
}
vkGetDeviceQueue(device, graphics_queue_family_index, 0, &graphics_queue);
if (!separate_present_queue) {
present_queue = graphics_queue;
} else {
vkGetDeviceQueue(device, present_queue_family_index, 0, &present_queue);
}
// Get the list of VkFormat's that are supported:
uint32_t formatCount;
VkResult err = fpGetPhysicalDeviceSurfaceFormatsKHR(gpu, surface, &formatCount, nullptr);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
VkSurfaceFormatKHR *surfFormats = (VkSurfaceFormatKHR *)malloc(formatCount * sizeof(VkSurfaceFormatKHR));
err = fpGetPhysicalDeviceSurfaceFormatsKHR(gpu, surface, &formatCount, surfFormats);
if (err) {
free(surfFormats);
ERR_FAIL_V(ERR_CANT_CREATE);
}
// If the format list includes just one entry of VK_FORMAT_UNDEFINED,
// the surface has no preferred format. Otherwise, at least one
// supported format will be returned.
if (true || (formatCount == 1 && surfFormats[0].format == VK_FORMAT_UNDEFINED)) {
format = VK_FORMAT_B8G8R8A8_UNORM;
} else {
if (formatCount < 1) {
free(surfFormats);
ERR_FAIL_V_MSG(ERR_CANT_CREATE, "formatCount less than 1");
}
format = surfFormats[0].format;
}
color_space = surfFormats[0].colorSpace;
free(surfFormats);
Error serr = _create_semaphores();
if (serr) {
return serr;
}
queues_initialized = true;
return OK;
}
Error VulkanContext::_create_semaphores() {
VkResult err;
// Create semaphores to synchronize acquiring presentable buffers before
// rendering and waiting for drawing to be complete before presenting
VkSemaphoreCreateInfo semaphoreCreateInfo = {
/*sType*/ VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO,
/*pNext*/ nullptr,
/*flags*/ 0,
};
// Create fences that we can use to throttle if we get too far
// ahead of the image presents
VkFenceCreateInfo fence_ci = {
/*sType*/ VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,
/*pNext*/ nullptr,
/*flags*/ VK_FENCE_CREATE_SIGNALED_BIT
};
for (uint32_t i = 0; i < FRAME_LAG; i++) {
err = vkCreateFence(device, &fence_ci, nullptr, &fences[i]);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
err = vkCreateSemaphore(device, &semaphoreCreateInfo, nullptr, &image_acquired_semaphores[i]);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
err = vkCreateSemaphore(device, &semaphoreCreateInfo, nullptr, &draw_complete_semaphores[i]);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
if (separate_present_queue) {
err = vkCreateSemaphore(device, &semaphoreCreateInfo, nullptr, &image_ownership_semaphores[i]);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
}
}
frame_index = 0;
// Get Memory information and properties
vkGetPhysicalDeviceMemoryProperties(gpu, &memory_properties);
return OK;
}
Error VulkanContext::_window_create(DisplayServer::WindowID p_window_id, VkSurfaceKHR p_surface, int p_width, int p_height) {
ERR_FAIL_COND_V(windows.has(p_window_id), ERR_INVALID_PARAMETER);
if (!queues_initialized) {
// We use a single GPU, but we need a surface to initialize the
// queues, so this process must be deferred until a surface
// is created.
_initialize_queues(p_surface);
}
Window window;
window.surface = p_surface;
window.width = p_width;
window.height = p_height;
Error err = _update_swap_chain(&window);
ERR_FAIL_COND_V(err != OK, ERR_CANT_CREATE);
windows[p_window_id] = window;
return OK;
}
void VulkanContext::window_resize(DisplayServer::WindowID p_window, int p_width, int p_height) {
ERR_FAIL_COND(!windows.has(p_window));
windows[p_window].width = p_width;
windows[p_window].height = p_height;
_update_swap_chain(&windows[p_window]);
}
int VulkanContext::window_get_width(DisplayServer::WindowID p_window) {
ERR_FAIL_COND_V(!windows.has(p_window), -1);
return windows[p_window].width;
}
int VulkanContext::window_get_height(DisplayServer::WindowID p_window) {
ERR_FAIL_COND_V(!windows.has(p_window), -1);
return windows[p_window].height;
}
VkRenderPass VulkanContext::window_get_render_pass(DisplayServer::WindowID p_window) {
ERR_FAIL_COND_V(!windows.has(p_window), VK_NULL_HANDLE);
Window *w = &windows[p_window];
//vulkan use of currentbuffer
return w->render_pass;
}
VkFramebuffer VulkanContext::window_get_framebuffer(DisplayServer::WindowID p_window) {
ERR_FAIL_COND_V(!windows.has(p_window), VK_NULL_HANDLE);
ERR_FAIL_COND_V(!buffers_prepared, VK_NULL_HANDLE);
Window *w = &windows[p_window];
//vulkan use of currentbuffer
return w->swapchain_image_resources[w->current_buffer].framebuffer;
}
void VulkanContext::window_destroy(DisplayServer::WindowID p_window_id) {
ERR_FAIL_COND(!windows.has(p_window_id));
_clean_up_swap_chain(&windows[p_window_id]);
vkDestroySurfaceKHR(inst, windows[p_window_id].surface, nullptr);
windows.erase(p_window_id);
}
Error VulkanContext::_clean_up_swap_chain(Window *window) {
if (!window->swapchain) {
return OK;
}
vkDeviceWaitIdle(device);
//this destroys images associated it seems
fpDestroySwapchainKHR(device, window->swapchain, nullptr);
window->swapchain = VK_NULL_HANDLE;
vkDestroyRenderPass(device, window->render_pass, nullptr);
if (window->swapchain_image_resources) {
for (uint32_t i = 0; i < swapchainImageCount; i++) {
vkDestroyImageView(device, window->swapchain_image_resources[i].view, nullptr);
vkDestroyFramebuffer(device, window->swapchain_image_resources[i].framebuffer, nullptr);
}
free(window->swapchain_image_resources);
window->swapchain_image_resources = nullptr;
}
if (separate_present_queue) {
vkDestroyCommandPool(device, window->present_cmd_pool, nullptr);
}
return OK;
}
Error VulkanContext::_update_swap_chain(Window *window) {
VkResult err;
if (window->swapchain) {
_clean_up_swap_chain(window);
}
// Check the surface capabilities and formats
VkSurfaceCapabilitiesKHR surfCapabilities;
err = fpGetPhysicalDeviceSurfaceCapabilitiesKHR(gpu, window->surface, &surfCapabilities);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
uint32_t presentModeCount;
err = fpGetPhysicalDeviceSurfacePresentModesKHR(gpu, window->surface, &presentModeCount, nullptr);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
VkPresentModeKHR *presentModes = (VkPresentModeKHR *)malloc(presentModeCount * sizeof(VkPresentModeKHR));
ERR_FAIL_COND_V(!presentModes, ERR_CANT_CREATE);
err = fpGetPhysicalDeviceSurfacePresentModesKHR(gpu, window->surface, &presentModeCount, presentModes);
if (err) {
free(presentModes);
ERR_FAIL_V(ERR_CANT_CREATE);
}
VkExtent2D swapchainExtent;
// width and height are either both 0xFFFFFFFF, or both not 0xFFFFFFFF.
if (surfCapabilities.currentExtent.width == 0xFFFFFFFF) {
// If the surface size is undefined, the size is set to the size
// of the images requested, which must fit within the minimum and
// maximum values.
swapchainExtent.width = window->width;
swapchainExtent.height = window->height;
if (swapchainExtent.width < surfCapabilities.minImageExtent.width) {
swapchainExtent.width = surfCapabilities.minImageExtent.width;
} else if (swapchainExtent.width > surfCapabilities.maxImageExtent.width) {
swapchainExtent.width = surfCapabilities.maxImageExtent.width;
}
if (swapchainExtent.height < surfCapabilities.minImageExtent.height) {
swapchainExtent.height = surfCapabilities.minImageExtent.height;
} else if (swapchainExtent.height > surfCapabilities.maxImageExtent.height) {
swapchainExtent.height = surfCapabilities.maxImageExtent.height;
}
} else {
// If the surface size is defined, the swap chain size must match
swapchainExtent = surfCapabilities.currentExtent;
window->width = surfCapabilities.currentExtent.width;
window->height = surfCapabilities.currentExtent.height;
}
if (window->width == 0 || window->height == 0) {
free(presentModes);
//likely window minimized, no swapchain created
return OK;
}
// The FIFO present mode is guaranteed by the spec to be supported
// and to have no tearing. It's a great default present mode to use.
VkPresentModeKHR swapchainPresentMode = VK_PRESENT_MODE_FIFO_KHR;
// There are times when you may wish to use another present mode. The
// following code shows how to select them, and the comments provide some
// reasons you may wish to use them.
//
// It should be noted that Vulkan 1.0 doesn't provide a method for
// synchronizing rendering with the presentation engine's display. There
// is a method provided for throttling rendering with the display, but
// there are some presentation engines for which this method will not work.
// If an application doesn't throttle its rendering, and if it renders much
// faster than the refresh rate of the display, this can waste power on
// mobile devices. That is because power is being spent rendering images
// that may never be seen.
// VK_PRESENT_MODE_IMMEDIATE_KHR is for applications that don't care about
// tearing, or have some way of synchronizing their rendering with the
// display.
// VK_PRESENT_MODE_MAILBOX_KHR may be useful for applications that
// generally render a new presentable image every refresh cycle, but are
// occasionally early. In this case, the application wants the new image
// to be displayed instead of the previously-queued-for-presentation image
// that has not yet been displayed.
// VK_PRESENT_MODE_FIFO_RELAXED_KHR is for applications that generally
// render a new presentable image every refresh cycle, but are occasionally
// late. In this case (perhaps because of stuttering/latency concerns),
// the application wants the late image to be immediately displayed, even
// though that may mean some tearing.
if (window->presentMode != swapchainPresentMode) {
for (size_t i = 0; i < presentModeCount; ++i) {
if (presentModes[i] == window->presentMode) {
swapchainPresentMode = window->presentMode;
break;
}
}
}
free(presentModes);
ERR_FAIL_COND_V_MSG(swapchainPresentMode != window->presentMode, ERR_CANT_CREATE, "Present mode specified is not supported\n");
// Determine the number of VkImages to use in the swap chain.
// Application desires to acquire 3 images at a time for triple
// buffering
uint32_t desiredNumOfSwapchainImages = 3;
if (desiredNumOfSwapchainImages < surfCapabilities.minImageCount) {
desiredNumOfSwapchainImages = surfCapabilities.minImageCount;
}
// If maxImageCount is 0, we can ask for as many images as we want;
// otherwise we're limited to maxImageCount
if ((surfCapabilities.maxImageCount > 0) && (desiredNumOfSwapchainImages > surfCapabilities.maxImageCount)) {
// Application must settle for fewer images than desired:
desiredNumOfSwapchainImages = surfCapabilities.maxImageCount;
}
VkSurfaceTransformFlagsKHR preTransform;
if (surfCapabilities.supportedTransforms & VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR) {
preTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
} else {
preTransform = surfCapabilities.currentTransform;
}
// Find a supported composite alpha mode - one of these is guaranteed to be set
VkCompositeAlphaFlagBitsKHR compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
VkCompositeAlphaFlagBitsKHR compositeAlphaFlags[4] = {
VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR,
VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR,
VK_COMPOSITE_ALPHA_POST_MULTIPLIED_BIT_KHR,
VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR,
};
for (uint32_t i = 0; i < ARRAY_SIZE(compositeAlphaFlags); i++) {
if (surfCapabilities.supportedCompositeAlpha & compositeAlphaFlags[i]) {
compositeAlpha = compositeAlphaFlags[i];
break;
}
}
VkSwapchainCreateInfoKHR swapchain_ci = {
/*sType*/ VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR,
/*pNext*/ nullptr,
/*flags*/ 0,
/*surface*/ window->surface,
/*minImageCount*/ desiredNumOfSwapchainImages,
/*imageFormat*/ format,
/*imageColorSpace*/ color_space,
/*imageExtent*/ {
/*width*/ swapchainExtent.width,
/*height*/ swapchainExtent.height,
},
/*imageArrayLayers*/ 1,
/*imageUsage*/ VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
/*imageSharingMode*/ VK_SHARING_MODE_EXCLUSIVE,
/*queueFamilyIndexCount*/ 0,
/*pQueueFamilyIndices*/ nullptr,
/*preTransform*/ (VkSurfaceTransformFlagBitsKHR)preTransform,
/*compositeAlpha*/ compositeAlpha,
/*presentMode*/ swapchainPresentMode,
/*clipped*/ true,
/*oldSwapchain*/ VK_NULL_HANDLE,
};
err = fpCreateSwapchainKHR(device, &swapchain_ci, nullptr, &window->swapchain);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
uint32_t sp_image_count;
err = fpGetSwapchainImagesKHR(device, window->swapchain, &sp_image_count, nullptr);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
if (swapchainImageCount == 0) {
//assign here for the first time.
swapchainImageCount = sp_image_count;
} else {
ERR_FAIL_COND_V(swapchainImageCount != sp_image_count, ERR_BUG);
}
VkImage *swapchainImages = (VkImage *)malloc(swapchainImageCount * sizeof(VkImage));
ERR_FAIL_COND_V(!swapchainImages, ERR_CANT_CREATE);
err = fpGetSwapchainImagesKHR(device, window->swapchain, &swapchainImageCount, swapchainImages);
if (err) {
free(swapchainImages);
ERR_FAIL_V(ERR_CANT_CREATE);
}
window->swapchain_image_resources =
(SwapchainImageResources *)malloc(sizeof(SwapchainImageResources) * swapchainImageCount);
if (!window->swapchain_image_resources) {
free(swapchainImages);
ERR_FAIL_V(ERR_CANT_CREATE);
}
for (uint32_t i = 0; i < swapchainImageCount; i++) {
VkImageViewCreateInfo color_image_view = {
/*sType*/ VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
/*pNext*/ nullptr,
/*flags*/ 0,
/*image*/ swapchainImages[i],
/*viewType*/ VK_IMAGE_VIEW_TYPE_2D,
/*format*/ format,
/*components*/ {
/*r*/ VK_COMPONENT_SWIZZLE_R,
/*g*/ VK_COMPONENT_SWIZZLE_G,
/*b*/ VK_COMPONENT_SWIZZLE_B,
/*a*/ VK_COMPONENT_SWIZZLE_A,
},
/*subresourceRange*/ { /*aspectMask*/ VK_IMAGE_ASPECT_COLOR_BIT,
/*baseMipLevel*/ 0,
/*levelCount*/ 1,
/*baseArrayLayer*/ 0,
/*layerCount*/ 1 },
};
window->swapchain_image_resources[i].image = swapchainImages[i];
color_image_view.image = window->swapchain_image_resources[i].image;
err = vkCreateImageView(device, &color_image_view, nullptr, &window->swapchain_image_resources[i].view);
if (err) {
free(swapchainImages);
ERR_FAIL_V(ERR_CANT_CREATE);
}
}
free(swapchainImages);
/******** FRAMEBUFFER ************/
{
const VkAttachmentDescription attachment = {
/*flags*/ 0,
/*format*/ format,
/*samples*/ VK_SAMPLE_COUNT_1_BIT,
/*loadOp*/ VK_ATTACHMENT_LOAD_OP_CLEAR,
/*storeOp*/ VK_ATTACHMENT_STORE_OP_STORE,
/*stencilLoadOp*/ VK_ATTACHMENT_LOAD_OP_DONT_CARE,
/*stencilStoreOp*/ VK_ATTACHMENT_STORE_OP_DONT_CARE,
/*initialLayout*/ VK_IMAGE_LAYOUT_UNDEFINED,
/*finalLayout*/ VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
};
const VkAttachmentReference color_reference = {
/*attachment*/ 0,
/*layout*/ VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
};
const VkSubpassDescription subpass = {
/*flags*/ 0,
/*pipelineBindPoint*/ VK_PIPELINE_BIND_POINT_GRAPHICS,
/*inputAttachmentCount*/ 0,
/*pInputAttachments*/ nullptr,
/*colorAttachmentCount*/ 1,
/*pColorAttachments*/ &color_reference,
/*pResolveAttachments*/ nullptr,
/*pDepthStencilAttachment*/ nullptr,
/*preserveAttachmentCount*/ 0,
/*pPreserveAttachments*/ nullptr,
};
const VkRenderPassCreateInfo rp_info = {
/*sTyp*/ VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
/*pNext*/ nullptr,
/*flags*/ 0,
/*attachmentCount*/ 1,
/*pAttachments*/ &attachment,
/*subpassCount*/ 1,
/*pSubpasses*/ &subpass,
/*dependencyCount*/ 0,
/*pDependencies*/ nullptr,
};
err = vkCreateRenderPass(device, &rp_info, nullptr, &window->render_pass);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
for (uint32_t i = 0; i < swapchainImageCount; i++) {
const VkFramebufferCreateInfo fb_info = {
/*sType*/ VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,
/*pNext*/ nullptr,
/*flags*/ 0,
/*renderPass*/ window->render_pass,
/*attachmentCount*/ 1,
/*pAttachments*/ &window->swapchain_image_resources[i].view,
/*width*/ (uint32_t)window->width,
/*height*/ (uint32_t)window->height,
/*layers*/ 1,
};
err = vkCreateFramebuffer(device, &fb_info, nullptr, &window->swapchain_image_resources[i].framebuffer);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
}
}
/******** SEPARATE PRESENT QUEUE ************/
if (separate_present_queue) {
const VkCommandPoolCreateInfo present_cmd_pool_info = {
/*sType*/ VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO,
/*pNext*/ nullptr,
/*flags*/ 0,
/*queueFamilyIndex*/ present_queue_family_index,
};
err = vkCreateCommandPool(device, &present_cmd_pool_info, nullptr, &window->present_cmd_pool);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
const VkCommandBufferAllocateInfo present_cmd_info = {
/*sType*/ VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO,
/*pNext*/ nullptr,
/*commandPool*/ window->present_cmd_pool,
/*level*/ VK_COMMAND_BUFFER_LEVEL_PRIMARY,
/*commandBufferCount*/ 1,
};
for (uint32_t i = 0; i < swapchainImageCount; i++) {
err = vkAllocateCommandBuffers(device, &present_cmd_info,
&window->swapchain_image_resources[i].graphics_to_present_cmd);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
const VkCommandBufferBeginInfo cmd_buf_info = {
/*sType*/ VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
/*pNext*/ nullptr,
/*flags*/ VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT,
/*pInheritanceInfo*/ nullptr,
};
err = vkBeginCommandBuffer(window->swapchain_image_resources[i].graphics_to_present_cmd, &cmd_buf_info);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
VkImageMemoryBarrier image_ownership_barrier = {
/*sType*/ VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
/*pNext*/ nullptr,
/*srcAccessMask*/ 0,
/*dstAccessMask*/ VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
/*oldLayout*/ VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
/*newLayout*/ VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
/*srcQueueFamilyIndex*/ graphics_queue_family_index,
/*dstQueueFamilyIndex*/ present_queue_family_index,
/*image*/ window->swapchain_image_resources[i].image,
/*subresourceRange*/ { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 }
};
vkCmdPipelineBarrier(window->swapchain_image_resources[i].graphics_to_present_cmd, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, 0, 0, nullptr, 0, nullptr, 1, &image_ownership_barrier);
err = vkEndCommandBuffer(window->swapchain_image_resources[i].graphics_to_present_cmd);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
}
}
//reset current buffer
window->current_buffer = 0;
return OK;
}
Error VulkanContext::initialize() {
Error err = _create_physical_device();
if (err) {
return err;
}
return OK;
}
void VulkanContext::set_setup_buffer(const VkCommandBuffer &pCommandBuffer) {
command_buffer_queue.write[0] = pCommandBuffer;
}
void VulkanContext::append_command_buffer(const VkCommandBuffer &pCommandBuffer) {
if (command_buffer_queue.size() <= command_buffer_count) {
command_buffer_queue.resize(command_buffer_count + 1);
}
command_buffer_queue.write[command_buffer_count] = pCommandBuffer;
command_buffer_count++;
}
void VulkanContext::flush(bool p_flush_setup, bool p_flush_pending) {
// ensure everything else pending is executed
vkDeviceWaitIdle(device);
//flush the pending setup buffer
if (p_flush_setup && command_buffer_queue[0]) {
//use a fence to wait for everything done
VkSubmitInfo submit_info;
submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info.pNext = nullptr;
submit_info.pWaitDstStageMask = nullptr;
submit_info.waitSemaphoreCount = 0;
submit_info.pWaitSemaphores = nullptr;
submit_info.commandBufferCount = 1;
submit_info.pCommandBuffers = command_buffer_queue.ptr();
submit_info.signalSemaphoreCount = 0;
submit_info.pSignalSemaphores = nullptr;
VkResult err = vkQueueSubmit(graphics_queue, 1, &submit_info, VK_NULL_HANDLE);
command_buffer_queue.write[0] = nullptr;
ERR_FAIL_COND(err);
vkDeviceWaitIdle(device);
}
if (p_flush_pending && command_buffer_count > 1) {
//use a fence to wait for everything done
VkSubmitInfo submit_info;
submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info.pNext = nullptr;
submit_info.pWaitDstStageMask = nullptr;
submit_info.waitSemaphoreCount = 0;
submit_info.pWaitSemaphores = nullptr;
submit_info.commandBufferCount = command_buffer_count - 1;
submit_info.pCommandBuffers = command_buffer_queue.ptr() + 1;
submit_info.signalSemaphoreCount = 0;
submit_info.pSignalSemaphores = nullptr;
VkResult err = vkQueueSubmit(graphics_queue, 1, &submit_info, VK_NULL_HANDLE);
ERR_FAIL_COND(err);
vkDeviceWaitIdle(device);
command_buffer_count = 1;
}
}
Error VulkanContext::prepare_buffers() {
if (!queues_initialized) {
return OK;
}
VkResult err;
// Ensure no more than FRAME_LAG renderings are outstanding
vkWaitForFences(device, 1, &fences[frame_index], VK_TRUE, UINT64_MAX);
vkResetFences(device, 1, &fences[frame_index]);
for (Map<int, Window>::Element *E = windows.front(); E; E = E->next()) {
Window *w = &E->get();
if (w->swapchain == VK_NULL_HANDLE) {
continue;
}
do {
// Get the index of the next available swapchain image:
err =
fpAcquireNextImageKHR(device, w->swapchain, UINT64_MAX,
image_acquired_semaphores[frame_index], VK_NULL_HANDLE, &w->current_buffer);
if (err == VK_ERROR_OUT_OF_DATE_KHR) {
// swapchain is out of date (e.g. the window was resized) and
// must be recreated:
print_line("early out of data");
//resize_notify();
_update_swap_chain(w);
} else if (err == VK_SUBOPTIMAL_KHR) {
print_line("early suboptimal");
// swapchain is not as optimal as it could be, but the platform's
// presentation engine will still present the image correctly.
break;
} else {
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
}
} while (err != VK_SUCCESS);
}
buffers_prepared = true;
return OK;
}
Error VulkanContext::swap_buffers() {
if (!queues_initialized) {
return OK;
}
// print_line("swapbuffers?");
VkResult err;
#if 0
if (VK_GOOGLE_display_timing_enabled) {
// Look at what happened to previous presents, and make appropriate
// adjustments in timing:
DemoUpdateTargetIPD(demo);
// Note: a real application would position its geometry to that it's in
// the correct locatoin for when the next image is presented. It might
// also wait, so that there's less latency between any input and when
// the next image is rendered/presented. This demo program is so
// simple that it doesn't do either of those.
}
#endif
// Wait for the image acquired semaphore to be signaled to ensure
// that the image won't be rendered to until the presentation
// engine has fully released ownership to the application, and it is
// okay to render to the image.
const VkCommandBuffer *commands_ptr = nullptr;
uint32_t commands_to_submit = 0;
if (command_buffer_queue[0] == nullptr) {
//no setup command, but commands to submit, submit from the first and skip command
if (command_buffer_count > 1) {
commands_ptr = command_buffer_queue.ptr() + 1;
commands_to_submit = command_buffer_count - 1;
}
} else {
commands_ptr = command_buffer_queue.ptr();
commands_to_submit = command_buffer_count;
}
VkPipelineStageFlags pipe_stage_flags;
VkSubmitInfo submit_info;
submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info.pNext = nullptr;
submit_info.pWaitDstStageMask = &pipe_stage_flags;
pipe_stage_flags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
submit_info.waitSemaphoreCount = 1;
submit_info.pWaitSemaphores = &image_acquired_semaphores[frame_index];
submit_info.commandBufferCount = commands_to_submit;
submit_info.pCommandBuffers = commands_ptr;
submit_info.signalSemaphoreCount = 1;
submit_info.pSignalSemaphores = &draw_complete_semaphores[frame_index];
err = vkQueueSubmit(graphics_queue, 1, &submit_info, fences[frame_index]);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
command_buffer_queue.write[0] = nullptr;
command_buffer_count = 1;
if (separate_present_queue) {
// If we are using separate queues, change image ownership to the
// present queue before presenting, waiting for the draw complete
// semaphore and signalling the ownership released semaphore when finished
VkFence nullFence = VK_NULL_HANDLE;
pipe_stage_flags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
submit_info.waitSemaphoreCount = 1;
submit_info.pWaitSemaphores = &draw_complete_semaphores[frame_index];
submit_info.commandBufferCount = 0;
VkCommandBuffer *cmdbufptr = (VkCommandBuffer *)alloca(sizeof(VkCommandBuffer *) * windows.size());
submit_info.pCommandBuffers = cmdbufptr;
for (Map<int, Window>::Element *E = windows.front(); E; E = E->next()) {
Window *w = &E->get();
if (w->swapchain == VK_NULL_HANDLE) {
continue;
}
cmdbufptr[submit_info.commandBufferCount] = w->swapchain_image_resources[w->current_buffer].graphics_to_present_cmd;
submit_info.commandBufferCount++;
}
submit_info.signalSemaphoreCount = 1;
submit_info.pSignalSemaphores = &image_ownership_semaphores[frame_index];
err = vkQueueSubmit(present_queue, 1, &submit_info, nullFence);
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
}
// If we are using separate queues we have to wait for image ownership,
// otherwise wait for draw complete
VkPresentInfoKHR present = {
/*sType*/ VK_STRUCTURE_TYPE_PRESENT_INFO_KHR,
/*pNext*/ nullptr,
/*waitSemaphoreCount*/ 1,
/*pWaitSemaphores*/ (separate_present_queue) ? &image_ownership_semaphores[frame_index] : &draw_complete_semaphores[frame_index],
/*swapchainCount*/ 0,
/*pSwapchain*/ nullptr,
/*pImageIndices*/ nullptr,
/*pResults*/ nullptr,
};
VkSwapchainKHR *pSwapchains = (VkSwapchainKHR *)alloca(sizeof(VkSwapchainKHR *) * windows.size());
uint32_t *pImageIndices = (uint32_t *)alloca(sizeof(uint32_t *) * windows.size());
present.pSwapchains = pSwapchains;
present.pImageIndices = pImageIndices;
for (Map<int, Window>::Element *E = windows.front(); E; E = E->next()) {
Window *w = &E->get();
if (w->swapchain == VK_NULL_HANDLE) {
continue;
}
pSwapchains[present.swapchainCount] = w->swapchain;
pImageIndices[present.swapchainCount] = w->current_buffer;
present.swapchainCount++;
}
#if 0
if (VK_KHR_incremental_present_enabled) {
// If using VK_KHR_incremental_present, we provide a hint of the region
// that contains changed content relative to the previously-presented
// image. The implementation can use this hint in order to save
// work/power (by only copying the region in the hint). The
// implementation is free to ignore the hint though, and so we must
// ensure that the entire image has the correctly-drawn content.
uint32_t eighthOfWidth = width / 8;
uint32_t eighthOfHeight = height / 8;
VkRectLayerKHR rect = {
/*offset.x*/ eighthOfWidth,
/*offset.y*/ eighthOfHeight,
/*extent.width*/ eighthOfWidth * 6,
/*extent.height*/ eighthOfHeight * 6,
/*layer*/ 0,
};
VkPresentRegionKHR region = {
/*rectangleCount*/ 1,
/*pRectangles*/ &rect,
};
VkPresentRegionsKHR regions = {
/*sType*/ VK_STRUCTURE_TYPE_PRESENT_REGIONS_KHR,
/*pNext*/ present.pNext,
/*swapchainCount*/ present.swapchainCount,
/*pRegions*/ &region,
};
present.pNext = &regions;
}
#endif
#if 0
if (VK_GOOGLE_display_timing_enabled) {
VkPresentTimeGOOGLE ptime;
if (prev_desired_present_time == 0) {
// This must be the first present for this swapchain.
//
// We don't know where we are relative to the presentation engine's
// display's refresh cycle. We also don't know how long rendering
// takes. Let's make a grossly-simplified assumption that the
// desiredPresentTime should be half way between now and
// now+target_IPD. We will adjust over time.
uint64_t curtime = getTimeInNanoseconds();
if (curtime == 0) {
// Since we didn't find out the current time, don't give a
// desiredPresentTime:
ptime.desiredPresentTime = 0;
} else {
ptime.desiredPresentTime = curtime + (target_IPD >> 1);
}
} else {
ptime.desiredPresentTime = (prev_desired_present_time + target_IPD);
}
ptime.presentID = next_present_id++;
prev_desired_present_time = ptime.desiredPresentTime;
VkPresentTimesInfoGOOGLE present_time = {
/*sType*/ VK_STRUCTURE_TYPE_PRESENT_TIMES_INFO_GOOGLE,
/*pNext*/ present.pNext,
/*swapchainCount*/ present.swapchainCount,
/*pTimes*/ &ptime,
};
if (VK_GOOGLE_display_timing_enabled) {
present.pNext = &present_time;
}
}
#endif
static int total_frames = 0;
total_frames++;
// print_line("current buffer: " + itos(current_buffer));
err = fpQueuePresentKHR(present_queue, &present);
frame_index += 1;
frame_index %= FRAME_LAG;
if (err == VK_ERROR_OUT_OF_DATE_KHR) {
// swapchain is out of date (e.g. the window was resized) and
// must be recreated:
print_line("out of date");
resize_notify();
} else if (err == VK_SUBOPTIMAL_KHR) {
// swapchain is not as optimal as it could be, but the platform's
// presentation engine will still present the image correctly.
print_line("suboptimal");
} else {
ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
}
buffers_prepared = false;
return OK;
}
void VulkanContext::resize_notify() {
}
VkDevice VulkanContext::get_device() {
return device;
}
VkPhysicalDevice VulkanContext::get_physical_device() {
return gpu;
}
int VulkanContext::get_swapchain_image_count() const {
return swapchainImageCount;
}
uint32_t VulkanContext::get_graphics_queue() const {
return graphics_queue_family_index;
}
VkFormat VulkanContext::get_screen_format() const {
return format;
}
VkPhysicalDeviceLimits VulkanContext::get_device_limits() const {
return gpu_props.limits;
}
VulkanContext::VulkanContext() {
queue_props = nullptr;
command_buffer_count = 0;
instance_validation_layers = nullptr;
use_validation_layers = true;
VK_KHR_incremental_present_enabled = true;
VK_GOOGLE_display_timing_enabled = true;
command_buffer_queue.resize(1); //first one is the setup command always
command_buffer_queue.write[0] = nullptr;
command_buffer_count = 1;
queues_initialized = false;
buffers_prepared = false;
swapchainImageCount = 0;
}
RID VulkanContext::local_device_create() {
LocalDevice ld;
{ //create device
VkResult err;
float queue_priorities[1] = { 0.0 };
VkDeviceQueueCreateInfo queues[2];
queues[0].sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
queues[0].pNext = nullptr;
queues[0].queueFamilyIndex = graphics_queue_family_index;
queues[0].queueCount = 1;
queues[0].pQueuePriorities = queue_priorities;
queues[0].flags = 0;
VkDeviceCreateInfo sdevice = {
/*sType =*/VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO,
/*pNext */ nullptr,
/*flags */ 0,
/*queueCreateInfoCount */ 1,
/*pQueueCreateInfos */ queues,
/*enabledLayerCount */ 0,
/*ppEnabledLayerNames */ nullptr,
/*enabledExtensionCount */ enabled_extension_count,
/*ppEnabledExtensionNames */ (const char *const *)extension_names,
/*pEnabledFeatures */ &physical_device_features, // If specific features are required, pass them in here
};
err = vkCreateDevice(gpu, &sdevice, nullptr, &ld.device);
ERR_FAIL_COND_V(err, RID());
}
{ //create graphics queue
vkGetDeviceQueue(ld.device, graphics_queue_family_index, 0, &ld.queue);
}
return local_device_owner.make_rid(ld);
}
VkDevice VulkanContext::local_device_get_vk_device(RID p_local_device) {
LocalDevice *ld = local_device_owner.getornull(p_local_device);
return ld->device;
}
void VulkanContext::local_device_push_command_buffers(RID p_local_device, const VkCommandBuffer *p_buffers, int p_count) {
LocalDevice *ld = local_device_owner.getornull(p_local_device);
ERR_FAIL_COND(ld->waiting);
VkSubmitInfo submit_info;
submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info.pNext = nullptr;
submit_info.pWaitDstStageMask = nullptr;
submit_info.waitSemaphoreCount = 0;
submit_info.pWaitSemaphores = nullptr;
submit_info.commandBufferCount = p_count;
submit_info.pCommandBuffers = p_buffers;
submit_info.signalSemaphoreCount = 0;
submit_info.pSignalSemaphores = nullptr;
VkResult err = vkQueueSubmit(ld->queue, 1, &submit_info, VK_NULL_HANDLE);
if (err == VK_ERROR_OUT_OF_HOST_MEMORY) {
print_line("out of host memory");
}
if (err == VK_ERROR_OUT_OF_DEVICE_MEMORY) {
print_line("out of device memory");
}
if (err == VK_ERROR_DEVICE_LOST) {
print_line("device lost");
}
ERR_FAIL_COND(err);
ld->waiting = true;
}
void VulkanContext::local_device_sync(RID p_local_device) {
LocalDevice *ld = local_device_owner.getornull(p_local_device);
ERR_FAIL_COND(!ld->waiting);
vkDeviceWaitIdle(ld->device);
ld->waiting = false;
}
void VulkanContext::local_device_free(RID p_local_device) {
LocalDevice *ld = local_device_owner.getornull(p_local_device);
vkDestroyDevice(ld->device, nullptr);
local_device_owner.free(p_local_device);
}
VulkanContext::~VulkanContext() {
if (queue_props) {
free(queue_props);
}
for (uint32_t i = 0; i < FRAME_LAG; i++) {
vkDestroyFence(device, fences[i], nullptr);
vkDestroySemaphore(device, image_acquired_semaphores[i], nullptr);
vkDestroySemaphore(device, draw_complete_semaphores[i], nullptr);
if (separate_present_queue) {
vkDestroySemaphore(device, image_ownership_semaphores[i], nullptr);
}
}
DestroyDebugUtilsMessengerEXT(inst, dbg_messenger, nullptr);
vkDestroyDevice(device, nullptr);
vkDestroyInstance(inst, nullptr);
}