44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
#pragma once
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#include "opengl/handles/shader_program_handle.hpp"
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#include <optional>
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#include <vector>
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namespace zgl {
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class shader_program_lookup
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{
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public:
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void add(
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const shader_program_handle& shader_program_handle,
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std::span<const shader_program_variable> all_attributes,
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std::span<const shader_program_variable> all_uniforms
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);
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[[nodiscard]] std::optional<shader_program_handle> find(
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shader_program_handle::attribute_support_type attributes,
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shader_program_handle::uniform_support_type uniforms,
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std::span<const shader_program_variable> all_attributes
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) const;
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void print();
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private:
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using attribute_locations_type = ztu::u32;
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[[nodiscard]] static attribute_locations_type attribute_location_flags(
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shader_program_handle::attribute_support_type attributes,
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std::span<const shader_program_variable> all_attributes
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);
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struct attribute_entry_type
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{
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shader_program_handle::attribute_support_type attributes;
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attribute_locations_type locations; // Do not go past location 31!!!
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};
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std::vector<shader_program_handle::uniform_support_type> m_mesh_shader_program_uniforms;
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std::vector<attribute_entry_type> m_mesh_shader_program_attributes;
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std::vector<shader_program_handle> m_mesh_shader_programs;
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};
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}
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