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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <optional>
#include <span>
#include <utility>
#include <vector>
#include "common/common_types.h"
#include "common/dynamic_library.h"
#include "common/logging/log.h"
#include "core/frontend/emu_window.h"
#include "video_core/vulkan_common/vulkan_instance.h"
#include "video_core/vulkan_common/vulkan_wrapper.h"
// Include these late to avoid polluting previous headers
#ifdef _WIN32
#include <windows.h>
// ensure include order
#include <vulkan/vulkan_win32.h>
#endif
#if !defined(_WIN32) && !defined(__APPLE__)
#include <X11/Xlib.h>
#include <vulkan/vulkan_wayland.h>
#include <vulkan/vulkan_xlib.h>
#endif
namespace Vulkan {
namespace {
[[nodiscard]] std::vector<const char*> RequiredExtensions(
Core::Frontend::WindowSystemType window_type, bool enable_debug_utils) {
std::vector<const char*> extensions;
extensions.reserve(6);
switch (window_type) {
case Core::Frontend::WindowSystemType::Headless:
break;
#ifdef _WIN32
case Core::Frontend::WindowSystemType::Windows:
extensions.push_back(VK_KHR_WIN32_SURFACE_EXTENSION_NAME);
break;
#endif
#if !defined(_WIN32) && !defined(__APPLE__)
case Core::Frontend::WindowSystemType::X11:
extensions.push_back(VK_KHR_XLIB_SURFACE_EXTENSION_NAME);
break;
case Core::Frontend::WindowSystemType::Wayland:
extensions.push_back(VK_KHR_WAYLAND_SURFACE_EXTENSION_NAME);
break;
#endif
default:
LOG_ERROR(Render_Vulkan, "Presentation not supported on this platform");
break;
}
if (window_type != Core::Frontend::WindowSystemType::Headless) {
extensions.push_back(VK_KHR_SURFACE_EXTENSION_NAME);
}
if (enable_debug_utils) {
extensions.push_back(VK_EXT_DEBUG_UTILS_EXTENSION_NAME);
}
extensions.push_back(VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME);
return extensions;
}
[[nodiscard]] bool AreExtensionsSupported(const vk::InstanceDispatch& dld,
std::span<const char* const> extensions) {
const std::optional properties = vk::EnumerateInstanceExtensionProperties(dld);
if (!properties) {
LOG_ERROR(Render_Vulkan, "Failed to query extension properties");
return false;
}
for (const char* extension : extensions) {
const auto it = std::ranges::find_if(*properties, [extension](const auto& prop) {
return std::strcmp(extension, prop.extensionName) == 0;
});
if (it == properties->end()) {
LOG_ERROR(Render_Vulkan, "Required instance extension {} is not available", extension);
return false;
}
}
return true;
}
[[nodiscard]] std::vector<const char*> Layers(bool enable_layers) {
std::vector<const char*> layers;
if (enable_layers) {
layers.push_back("VK_LAYER_KHRONOS_validation");
}
return layers;
}
void RemoveUnavailableLayers(const vk::InstanceDispatch& dld, std::vector<const char*>& layers) {
const std::optional layer_properties = vk::EnumerateInstanceLayerProperties(dld);
if (!layer_properties) {
LOG_ERROR(Render_Vulkan, "Failed to query layer properties, disabling layers");
layers.clear();
}
std::erase_if(layers, [&layer_properties](const char* layer) {
const auto comp = [layer](const VkLayerProperties& layer_property) {
return std::strcmp(layer, layer_property.layerName) == 0;
};
const auto it = std::ranges::find_if(*layer_properties, comp);
if (it == layer_properties->end()) {
LOG_ERROR(Render_Vulkan, "Layer {} not available, removing it", layer);
return true;
}
return false;
});
}
} // Anonymous namespace
std::pair<vk::Instance, u32> CreateInstance(Common::DynamicLibrary& library,
vk::InstanceDispatch& dld,
Core::Frontend::WindowSystemType window_type,
bool enable_debug_utils, bool enable_layers) {
if (!library.IsOpen()) {
LOG_ERROR(Render_Vulkan, "Vulkan library not available");
return {};
}
if (!library.GetSymbol("vkGetInstanceProcAddr", &dld.vkGetInstanceProcAddr)) {
LOG_ERROR(Render_Vulkan, "vkGetInstanceProcAddr not present in Vulkan");
return {};
}
if (!vk::Load(dld)) {
LOG_ERROR(Render_Vulkan, "Failed to load Vulkan function pointers");
return {};
}
const std::vector<const char*> extensions = RequiredExtensions(window_type, enable_debug_utils);
if (!AreExtensionsSupported(dld, extensions)) {
return {};
}
std::vector<const char*> layers = Layers(enable_layers);
RemoveUnavailableLayers(dld, layers);
// Limit the maximum version of Vulkan to avoid using untested version.
const u32 version = std::min(vk::AvailableVersion(dld), VK_API_VERSION_1_1);
vk::Instance instance = vk::Instance::Create(version, layers, extensions, dld);
if (!instance) {
LOG_ERROR(Render_Vulkan, "Failed to create Vulkan instance");
return {};
}
if (!vk::Load(*instance, dld)) {
LOG_ERROR(Render_Vulkan, "Failed to load Vulkan instance function pointers");
}
return std::make_pair(std::move(instance), version);
}
} // namespace Vulkan
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