Created pipeline builder and wrapper

basalt::Pipeline is mainly just a wrapper around VkPipeline however there is no cast operator provided (yet)

include/vulkan/basalt_pipeline.h

@@ -0,0 +1,70 @@
+#pragma once
+#include "vulkan/basalt_render_pass.h"
+
+namespace basalt
+{
+	class Pipeline
+	{
+	public:
+		Pipeline(const Pipeline& src) = delete;
+		Pipeline& operator =(const Pipeline& src) = delete;
+		Pipeline(Pipeline&& other) noexcept;
+		Pipeline& operator =(Pipeline&& other) noexcept;
+
+		Pipeline(basalt::Device& device, VkPipeline pipeline, VkPipelineLayout layout);
+		~Pipeline();
+
+		void swap(Pipeline& other) noexcept;
+
+		VkPipeline vk = VK_NULL_HANDLE;
+		VkPipelineLayout layout = VK_NULL_HANDLE;
+		basalt::Device* device = nullptr;
+		bool should_free = true;
+	};
+
+	class PipelineBuilder
+	{
+	public:
+		PipelineBuilder(basalt::Device& device, VkExtent2D extent, VkPipeline previous_pipeline=VK_NULL_HANDLE);
+		~PipelineBuilder();
+
+		PipelineBuilder& add_shader(const char* fpath, VkShaderStageFlagBits stage, const char* entry="main");
+		PipelineBuilder& add_dynamic_state(const VkDynamicState state);
+		PipelineBuilder& add_dynamic_states(const VkDynamicState* states, const u32 num_states);
+		PipelineBuilder& add_dynamic_states(const basalt::darray<VkDynamicState>& states);
+		PipelineBuilder& set_render_pass(VkRenderPass render_pass);
+		PipelineBuilder& add_colour_attachment(VkPipelineColorBlendAttachmentState attachment);
+
+		Pipeline build();
+
+		basalt::darray<VkShaderModule> shader_modules;
+		basalt::darray<VkPipelineShaderStageCreateInfo> shader_stages;
+
+		VkPipelineRasterizationStateCreateInfo raster_ci;
+		VkPipelineColorBlendStateCreateInfo colour_blend_ci;
+		VkPipelineLayoutCreateInfo layout_ci;
+		VkPipelineVertexInputStateCreateInfo vertex_ci;
+		VkPipelineMultisampleStateCreateInfo multisample_ci;
+		VkPipelineViewportStateCreateInfo viewport_ci;
+		VkPipelineInputAssemblyStateCreateInfo assembly_ci;
+		VkPipelineDynamicStateCreateInfo dynamic_state_ci;
+		basalt::darray<VkPipelineColorBlendAttachmentState> colour_attachments;
+		basalt::darray<VkDynamicState> dynamic_states;
+		VkViewport viewport;
+		VkRect2D scissor;
+		basalt::Device& device;
+		VkRenderPass render_pass = VK_NULL_HANDLE;
+		VkPipeline previous_pipeline = VK_NULL_HANDLE;
+	protected:
+		/// <summary>
+		/// Will read all of the contents of a file into outptr
+		/// Should outptr not be big enough or nullptr, it will be allocated
+		/// If it is not big enough it will be reallocated
+		/// </summary>
+		/// <param name="fpath">Path to the file to read</param>
+		/// <param name="outptr">A reference to a pointer that may be updated</param>
+		/// <param name="size">Size of an existing allocation associated with outptr</param>
+		/// <returns>Number of bytes read from the file</returns>
+		static size_t read_file(const char* fpath, char*& outptr, size_t& outptr_size);
+	};
+}