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author | ReinUsesLisp <reinuseslisp@airmail.cc> | 2020-03-27 06:44:29 +0100 |
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committer | ReinUsesLisp <reinuseslisp@airmail.cc> | 2020-03-27 07:13:18 +0100 |
commit | 92c8d783b3dfb3f6a264ec75cacd42f01a950046 (patch) | |
tree | 6a96250c0b5ca2696b93582cb05af9d873f471b9 /src/video_core | |
parent | Merge pull request #3544 from makigumo/myfork/patch-2 (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/video_core/CMakeLists.txt | 1 | ||||
-rw-r--r-- | src/video_core/renderer_vulkan/wrapper.h | 83 |
2 files changed, 84 insertions, 0 deletions
diff --git a/src/video_core/CMakeLists.txt b/src/video_core/CMakeLists.txt index 91df062d7..a8ae3827d 100644 --- a/src/video_core/CMakeLists.txt +++ b/src/video_core/CMakeLists.txt @@ -210,6 +210,7 @@ if (ENABLE_VULKAN) renderer_vulkan/vk_texture_cache.h renderer_vulkan/vk_update_descriptor.cpp renderer_vulkan/vk_update_descriptor.h + renderer_vulkan/wrapper.h ) target_include_directories(video_core PRIVATE sirit ../../externals/Vulkan-Headers/include) diff --git a/src/video_core/renderer_vulkan/wrapper.h b/src/video_core/renderer_vulkan/wrapper.h new file mode 100644 index 000000000..7ed4cdb3a --- /dev/null +++ b/src/video_core/renderer_vulkan/wrapper.h @@ -0,0 +1,83 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <exception> +#include <iterator> +#include <limits> +#include <memory> +#include <optional> +#include <type_traits> +#include <utility> +#include <vector> + +#define VK_NO_PROTOTYPES +#include <vulkan/vulkan.h> + +#include "common/common_types.h" + +namespace Vulkan::vk { + +/** + * Span for Vulkan arrays. + * Based on std::span but optimized for array access instead of iterators. + * Size returns uint32_t instead of size_t to ease interaction with Vulkan functions. + */ +template <typename T> +class Span { +public: + /// Construct an empty span. + constexpr Span() noexcept = default; + + /// Construct a span from a single element. + constexpr Span(const T& value) noexcept : ptr{&value}, num{1} {} + + /// Construct a span from a range. + template <typename Range> + // requires std::data(const Range&) + // requires std::size(const Range&) + constexpr Span(const Range& range) : ptr{std::data(range)}, num{std::size(range)} {} + + /// Construct a span from a pointer and a size. + /// This is inteded for subranges. + constexpr Span(const T* ptr, std::size_t num) noexcept : ptr{ptr}, num{num} {} + + /// Returns the data pointer by the span. + constexpr const T* data() const noexcept { + return ptr; + } + + /// Returns the number of elements in the span. + constexpr u32 size() const noexcept { + return static_cast<u32>(num); + } + + /// Returns true when the span is empty. + constexpr bool empty() const noexcept { + return num == 0; + } + + /// Returns a reference to the element in the passed index. + /// @pre: index < size() + constexpr const T& operator[](std::size_t index) const noexcept { + return ptr[index]; + } + + /// Returns an iterator to the beginning of the span. + constexpr const T* begin() const noexcept { + return ptr; + } + + /// Returns an iterator to the end of the span. + constexpr const T* end() const noexcept { + return ptr + num; + } + +private: + const T* ptr = nullptr; + std::size_t num = 0; +}; + +} // namespace Vulkan::vk |