chromium/third_party/dawn/src/dawn/native/vulkan/VulkanExtensions.h

// Copyright 2020 The Dawn & Tint Authors
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#ifndef SRC_DAWN_NATIVE_VULKAN_VULKANEXTENSIONS_H_
#define SRC_DAWN_NATIVE_VULKAN_VULKANEXTENSIONS_H_

#include <string>

#include "absl/container/flat_hash_map.h"
#include "dawn/common/ityp_bitset.h"

namespace dawn::native::vulkan {

// The list of known instance extensions. They must be in dependency order (this is checked
// inside EnsureDependencies)
enum class InstanceExt { … };

// A bitset that is indexed with InstanceExt.
InstanceExtSet;

// Information about a known instance extension.
struct InstanceExtInfo { … };

// Returns the information about a known InstanceExt
const InstanceExtInfo& GetInstanceExtInfo(InstanceExt ext);
// Returns a map that maps a Vulkan extension name to its InstanceExt.
absl::flat_hash_map<std::string, InstanceExt> CreateInstanceExtNameMap();

// Sets entries in `extensions` to true if that entry was promoted in Vulkan version `version`
void MarkPromotedExtensions(InstanceExtSet* extensions, uint32_t version);
// From a set of extensions advertised as supported by the instance (or promoted), remove all
// extensions that don't have all their transitive dependencies in advertisedExts.
InstanceExtSet EnsureDependencies(const InstanceExtSet& advertisedExts);

// The list of known device extensions. They must be in dependency order (this is checked
// inside EnsureDependencies)
enum class DeviceExt { … };

// A bitset that is indexed with DeviceExt.
DeviceExtSet;

// Information about a known device extension.
struct DeviceExtInfo { … };

// Returns the information about a known DeviceExt
const DeviceExtInfo& GetDeviceExtInfo(DeviceExt ext);
// Returns a map that maps a Vulkan extension name to its DeviceExt.
absl::flat_hash_map<std::string, DeviceExt> CreateDeviceExtNameMap();

// Sets entries in `extensions` to true if that entry was promoted in Vulkan version `version`
void MarkPromotedExtensions(DeviceExtSet* extensions, uint32_t version);
// From a set of extensions advertised as supported by the device (or promoted), remove all
// extensions that don't have all their transitive dependencies in advertisedExts or in
// instanceExts.
DeviceExtSet EnsureDependencies(const DeviceExtSet& advertisedExts,
                                const InstanceExtSet& instanceExts);

// The list of all known Vulkan layers.
enum class VulkanLayer { … };

// A bitset that is indexed with VulkanLayer.
VulkanLayerSet;

// Information about a known layer
struct VulkanLayerInfo { … };

// Returns the information about a known VulkanLayer
const VulkanLayerInfo& GetVulkanLayerInfo(VulkanLayer layer);
// Returns a map that maps a Vulkan layer name to its VulkanLayer.
absl::flat_hash_map<std::string, VulkanLayer> CreateVulkanLayerNameMap();

}  // namespace dawn::native::vulkan

#endif  // SRC_DAWN_NATIVE_VULKAN_VULKANEXTENSIONS_H_