💿🐜 Antkeeper source code
https://antkeeper.com
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122 lines
2.9 KiB
122 lines
2.9 KiB
/*
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* Copyright (C) 2023 Christopher J. Howard
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*
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* This file is part of Antkeeper source code.
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*
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* Antkeeper source code 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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* Antkeeper source code 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 Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef ANTKEEPER_GL_FRAMEBUFFER_HPP
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#define ANTKEEPER_GL_FRAMEBUFFER_HPP
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#include <array>
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#include <cstdint>
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namespace gl {
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class rasterizer;
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class texture_2d;
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enum class framebuffer_attachment_type: std::uint8_t
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{
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color,
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depth,
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stencil
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};
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class framebuffer
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{
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public:
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/**
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* Creates a framebuffer.
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*/
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framebuffer(int width, int height);
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framebuffer();
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/// Destroys a framebuffer.
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~framebuffer();
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/**
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* Resizes the framebuffer. Note: This does not resize any attached textures.
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*
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* @param width New width of the framebuffer.
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* @param height New height of the framebuffer.
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*/
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void resize(const std::array<int, 2>& dimensions);
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/**
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* Attaches a color, depth, or stencil texture to the framebuffer.
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*
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* @param attachment_type Type of attachment.
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*/
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void attach(framebuffer_attachment_type attachment_type, texture_2d* texture);
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/// Returns the dimensions of the framebuffer, in pixels.
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const std::array<int, 2>& get_dimensions() const;
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const texture_2d* get_color_attachment() const;
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texture_2d* get_color_attachment();
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const texture_2d* get_depth_attachment() const;
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texture_2d* get_depth_attachment();
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const texture_2d* get_stencil_attachment() const;
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texture_2d* get_stencil_attachment();
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private:
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friend class rasterizer;
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unsigned int gl_framebuffer_id;
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std::array<int, 2> dimensions;
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texture_2d* color_attachment;
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texture_2d* depth_attachment;
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texture_2d* stencil_attachment;
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};
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inline const std::array<int, 2>& framebuffer::get_dimensions() const
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{
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return dimensions;
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}
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inline const texture_2d* framebuffer::get_color_attachment() const
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{
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return color_attachment;
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}
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inline texture_2d* framebuffer::get_color_attachment()
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{
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return color_attachment;
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}
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inline const texture_2d* framebuffer::get_depth_attachment() const
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{
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return depth_attachment;
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}
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inline texture_2d* framebuffer::get_depth_attachment()
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{
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return depth_attachment;
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}
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inline const texture_2d* framebuffer::get_stencil_attachment() const
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{
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return stencil_attachment;
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}
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inline texture_2d* framebuffer::get_stencil_attachment()
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{
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return stencil_attachment;
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}
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} // namespace gl
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#endif // ANTKEEPER_GL_FRAMEBUFFER_HPP
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