103 lines
No EOL
3.7 KiB
C++
103 lines
No EOL
3.7 KiB
C++
/*
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Crafter®.Graphics
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Copyright (C) 2026 Catcrafts®
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catcrafts.net
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License version 3.0 as published by the Free Software Foundation;
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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module;
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#ifdef CRAFTER_GRAPHICS_VULKAN
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#include <vulkan/vulkan.h>
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#endif
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export module Crafter.Graphics:ShaderVulkan;
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#ifdef CRAFTER_GRAPHICS_VULKAN
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import std;
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import :VulkanDevice;
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import :Types;
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export namespace Crafter {
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template<size_t N>
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struct StringLiteral {
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constexpr StringLiteral(const char (&str)[N]) {
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std::copy_n(str, N, value);
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}
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char value[N];
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};
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template <
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StringLiteral path,
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StringLiteral entrypoint,
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VkShaderStageFlagBits stage,
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std::uint32_t DescriptorCount,
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const std::array<DescriptorBinding, DescriptorCount> Descriptors
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>
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class VulkanShader {
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public:
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constexpr static VkShaderStageFlagBits _stage = stage;
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constexpr static StringLiteral _entrypoint = entrypoint;
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constexpr static std::span<const DescriptorBinding> descriptors = Descriptors;
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inline static VkShaderModule shader;
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inline static VkDescriptorSetLayout layout;
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consteval static std::array<VkDescriptorSetLayoutBinding, DescriptorCount> GetDescriptorSet() {
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std::array<VkDescriptorSetLayoutBinding, DescriptorCount> set;
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for(std::uint32_t i = 0; i < Descriptors.size(); i++) {
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set[i] = {Descriptors[i].slot, Descriptors[i].type, 1, stage, nullptr};
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}
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return set;
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}
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static void CreateShader() {
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std::ifstream file(path.value, std::ios::binary);
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if (!file) {
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std::cerr << "Error: Could not open file " << path.value << std::endl;
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}
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// Move to the end of the file to determine its size
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file.seekg(0, std::ios::end);
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std::streamsize size = file.tellg();
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file.seekg(0, std::ios::beg);
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std::vector<std::uint32_t> spirv(size / sizeof(std::uint32_t));
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// Read the data into the vector
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if (!file.read(reinterpret_cast<char*>(spirv.data()), size)) {
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std::cerr << "Error: Could not read data from file" << std::endl;
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}
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file.close();
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VkShaderModuleCreateInfo module_info{VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO};
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module_info.codeSize = spirv.size() * sizeof(uint32_t);
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module_info.pCode = spirv.data();
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VkShaderModule shader_module;
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VulkanDevice::CheckVkResult(vkCreateShaderModule(VulkanDevice::device, &module_info, nullptr, &shader));
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constexpr std::array<VkDescriptorSetLayoutBinding, DescriptorCount> setLayoutBindingsMesh = GetDescriptorSet();
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VkDescriptorSetLayoutCreateInfo descriptorLayoutInfoMesh = {
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.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO,
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.bindingCount = DescriptorCount,
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.pBindings = setLayoutBindingsMesh.data()
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};
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VulkanDevice::CheckVkResult(vkCreateDescriptorSetLayout(VulkanDevice::device, &descriptorLayoutInfoMesh, nullptr, &layout));
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}
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};
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}
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#endif |