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include/opengl/data_managers/shader_manager.hpp

@@ -0,0 +1,58 @@
+#pragma once
+
+#include <unordered_map>
+#include <bit>
+#include <format>
+#include <ranges>
+#include <bits/ranges_algo.h>
+
+#include "assets/dynamic_data_stores/dynamic_shader_source_store.hpp"
+#include "opengl/shader_program_lookup.hpp"
+#include "opengl/handles/shader_handle.hpp"
+#include "util/string_lookup.hpp"
+#include "shader_source_manager.hpp"
+#include "opengl/metadata/shader_metadata.hpp"
+#include "opengl/data/shader_data.hpp"
+#include "opengl/handles/shader_handle_set.hpp"
+#include "opengl/shading/requirements/shader_requirements.hpp"
+#include "opengl/metadata/shader_set_metadata.hpp"
+#include "opengl/shading/requirements/shader_set_requirements.hpp"
+
+namespace zgl
+{
+class shader_manager
+{
+	using shader_lookup_entry_type = std::pair<shader_metadata, shader_data>;
+public:
+
+	void process(
+		const dynamic_shader_source_store& shader_sources
+	);
+
+	void get_handles(
+		const dynamic_shader_source_store& shader_sources,
+		std::span<const shading::shader_set_requirements> requirements,
+		std::span<shader_set_metadata> metadata,
+		std::span<shader_handle_set> shader_sets
+	);
+
+protected:
+	std::optional<std::pair<shader_metadata, shader_handle>> find_shader(
+		const shading::shader_requirements& requirements
+	);
+
+	static bool compile_shader(
+		GLenum shader_type,
+		std::span<const char*> source_strings,
+		shader_data& shader
+	);
+
+private:
+	shader_source_manager m_preprocessor{};
+
+	std::vector<shading::shader_source_requirements> m_source_requirement_buffer{};
+	std::vector<preprocessed_shader_source_metadata> m_preprocessed_shader_source_metadata_buffer{};
+	std::vector<const char*> m_source_strings_buffer{};
+	std::vector<shader_lookup_entry_type> m_shader_lookup{};
+};
+}