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https://github.com/MaSzyna-EU07/maszyna.git
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83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
/*
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This Source Code Form is subject to the
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terms of the Mozilla Public License, v.
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2.0. If a copy of the MPL was not
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distributed with this file, You can
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obtain one at
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http://mozilla.org/MPL/2.0/.
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*/
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#pragma once
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#include "Classes.h"
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#include "Texture.h"
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#include "gl/shader.h"
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#include "gl/ubo.h"
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typedef int material_handle;
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// a collection of parameters for the rendering setup.
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// for modern opengl this translates to set of attributes for shaders
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struct opengl_material {
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// primary texture, typically diffuse+apha
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// secondary texture, typically normal+reflection
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std::array<texture_handle, gl::MAX_TEXTURES> textures = { null_handle };
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std::array<glm::vec4, gl::MAX_PARAMS> params = { glm::vec4() };
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std::shared_ptr<gl::program> shader;
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float opacity = std::numeric_limits<float>::quiet_NaN();
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float selfillum = std::numeric_limits<float>::quiet_NaN();
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std::string name;
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// constructors
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opengl_material() = default;
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// methods
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bool
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deserialize( cParser &Input, bool const Loadnow );
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private:
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// methods
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// imports member data pair from the config file, overriding existing parameter values of lower priority
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bool
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deserialize_mapping( cParser &Input, int const Priority, bool const Loadnow );
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// members
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// priorities for textures, shader, opacity
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int m_shader_priority = -1;
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int m_opacity_priority = -1;
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int m_selfillum_priority = -1;
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std::array<int, gl::MAX_TEXTURES> m_texture_priority = { -1 };
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std::array<int, gl::MAX_PARAMS> m_param_priority = { -1 };
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};
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class material_manager {
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public:
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material_manager() { m_materials.emplace_back( opengl_material() ); } // empty bindings for null material
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material_handle
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create( std::string const &Filename, bool const Loadnow );
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opengl_material const &
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material( material_handle const Material ) const { return m_materials[ Material ]; }
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private:
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// types
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typedef std::vector<opengl_material> material_sequence;
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typedef std::unordered_map<std::string, std::size_t> index_map;
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// methods:
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// checks whether specified texture is in the texture bank. returns texture id, or npos.
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material_handle
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find_in_databank( std::string const &Materialname ) const;
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// checks whether specified file exists. returns name of the located file, or empty string.
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std::pair<std::string, std::string>
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find_on_disk( std::string const &Materialname ) const;
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// members:
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material_sequence m_materials;
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index_map m_materialmappings;
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};
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//---------------------------------------------------------------------------
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