93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
/*
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* <Short Description>
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* Copyright (C) 2023 Brett Terpstra
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef BLT_WITH_GRAPHICS_MODEL_H
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#define BLT_WITH_GRAPHICS_MODEL_H
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#include <blt/math/vectors.h>
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#include <vector>
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#include <blt/gfx/gl_includes.h>
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#include <variant>
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namespace blt::gfx
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{
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class model_data
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{
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public:
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private:
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std::vector<blt::vec3f> vertices;
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std::vector<blt::vec2f> uvs;
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std::vector<blt::vec3f> normals;
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};
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class static_dynamic_array
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{
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private:
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static constexpr size_t DATA_SIZE = 8;
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std::variant<GLuint[DATA_SIZE], GLuint*> data_;
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size_t size_ = DATA_SIZE;
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public:
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static_dynamic_array() = default;
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static_dynamic_array(const static_dynamic_array& copy) = delete;
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static_dynamic_array(static_dynamic_array&& move) noexcept;
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static_dynamic_array& operator=(const static_dynamic_array& copy) = delete;
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static_dynamic_array& operator=(static_dynamic_array&& move) = delete;
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~static_dynamic_array()
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{
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if (std::holds_alternative<GLuint*>(data_))
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delete[] std::get<GLuint*>(data_);
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}
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};
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/**
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* basic VAO class.
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*/
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class basic_vertex_array
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{
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private:
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struct vbo_t
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{
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GLuint bufferID_ = 0;
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GLsizeiptr size_ = 0;
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vbo_t();
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void bind(GLint buffer_type = GL_ARRAY_BUFFER) const;
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void allocate(GLsizeiptr size, GLint buffer_type = GL_ARRAY_BUFFER, GLint memory_type = GL_STATIC_DRAW, void* data = nullptr);
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static void sub_update(GLsizeiptr offset, GLsizeiptr size, void* data, GLint buffer_type = GL_ARRAY_BUFFER);
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void update(GLsizeiptr size, void* data, GLint buffer_type = GL_ARRAY_BUFFER, GLint memory_type = GL_STATIC_DRAW);
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~vbo_t();
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};
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GLuint vaoID;
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public:
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basic_vertex_array();
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};
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}
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#endif //BLT_WITH_GRAPHICS_MODEL_H
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