partial move
Brett
parent
1808af68b5
commit
c28f8e6109
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@ -1,7 +1,7 @@
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cmake_minimum_required(VERSION 3.25)
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include(FetchContent)
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set(BLT_GRAPHICS_VERSION 2.0.10)
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set(BLT_GRAPHICS_VERSION 2.0.11)
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set(BLT_GRAPHICS_TEST_VERSION 0.0.1)
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project(BLT_WITH_GRAPHICS VERSION ${BLT_GRAPHICS_VERSION})
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@ -0,0 +1,198 @@
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#pragma once
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/*
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* Copyright (C) 2024 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_GFX_VAO_H
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#define BLT_GFX_VAO_H
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#include <memory>
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#include <blt/gfx/vbo.h>
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#include <blt/std/hashmap.h>
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#include <blt/std/vector.h>
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namespace blt::gfx
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{
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class unique_vao_t;
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namespace detail
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{
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struct vao_vbo_storage_t
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{
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std::unique_ptr<unique_vbo_t> vbo;
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std::optional<hashset_t<u32>> attribute_numbers;
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[[nodiscard]] bool is_element() const
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{
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return vbo->get_buffer_type() == GL_ELEMENT_ARRAY_BUFFER;
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}
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explicit vao_vbo_storage_t(unique_vbo_t&& vbo): vbo(std::make_unique<unique_vbo_t>(std::move(vbo)))
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{}
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};
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class vao_vbo_context_t
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{
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friend class vao_context_t;
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public:
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vao_vbo_context_t(const vao_vbo_context_t& copy) = delete;
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vao_vbo_context_t(vao_vbo_context_t&& move) = delete;
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vao_vbo_context_t& operator=(const vao_vbo_context_t& copy) = delete;
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vao_vbo_context_t& operator=(vao_vbo_context_t&& move) = delete;
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/**
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* This function takes ownership of the underlying VBO (GPU side). It will be freed when the basic vertex array is deleted
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* @param attribute_number attribute number to bind to
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* @param coordinate_size size of the data (number of elements, not the number of bytes)
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* @param type GL_TYPE type of data
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* @param stride how many bytes this data takes (for the entire per-vertex data structure) 0 will assume packed data
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* This is in effect how many bytes until the next block of data
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* @param offset offset into the data structure to where the data is stored
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*/
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vao_vbo_context_t& attribute_ptr(int attribute_number, int coordinate_size, GLenum type, int stride, long offset);
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vao_vbo_context_t& silence()
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{
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attributed = true;
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return *this;
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}
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/**
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* Useless function, but if it makes you feel better, feel free to use it.
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*/
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vao_vbo_context_t& as_element()
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{
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return *this;
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}
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~vao_vbo_context_t();
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private:
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vao_vbo_context_t(unique_vao_t& vao, vao_vbo_storage_t& vbo): vbo(vbo), vao(vao)
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{}
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vao_vbo_storage_t& vbo;
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unique_vao_t& vao;
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bool attributed = false;
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};
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class vao_context_t
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{
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friend vao_vbo_context_t;
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friend unique_vao_t;
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public:
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vao_context_t(const vao_context_t& copy) = delete;
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vao_context_t(vao_context_t&& move) = delete;
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vao_context_t& operator=(const vao_context_t& copy) = delete;
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vao_context_t& operator=(vao_context_t&& move) = delete;
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vao_context_t& bind();
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vao_context_t& unbind();
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vao_vbo_context_t attach_vbo(unique_vbo_t&& vbo) const;
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~vao_context_t();
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private:
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[[nodiscard]] bool is_bound() const;
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explicit vao_context_t(unique_vao_t& vao): vao(vao)
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{
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bind();
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}
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unique_vao_t& vao;
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};
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}
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class unique_vao_t
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{
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friend detail::vao_vbo_context_t;
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friend detail::vao_context_t;
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public:
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unique_vao_t(): vaoID(0)
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{
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glGenVertexArrays(1, &*vaoID);
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}
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unique_vao_t(const unique_vao_t&) = delete;
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unique_vao_t& operator=(const unique_vao_t&) = delete;
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unique_vao_t(unique_vao_t&& other) noexcept: vaoID(std::exchange(other.vaoID, std::nullopt))
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{}
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unique_vao_t& operator=(unique_vao_t&& other) noexcept
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{
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vaoID = std::exchange(other.vaoID, vaoID);
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return *this;
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}
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/**
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* This function is used for configuring the internals of VAO it will automatically unbind the VAO at the end of scope
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*/
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detail::vao_context_t configure();
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/**
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* This function is used to bind the VAO for usage during rendering.
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*/
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void bind() const;
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[[nodiscard]] std::optional<ref<unique_vbo_t>> get_attribute(const u32 attribute) const
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{
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for (const auto& vbo_obj : vbo_list)
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{
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if (const auto attrs = vbo_obj.attribute_numbers)
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{
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if (attrs->contains(attribute))
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return *vbo_obj.vbo;
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}
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}
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return {};
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}
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[[nodiscard]] std::optional<ref<unique_vbo_t>> get_buffer_type(const GLuint buffer_type) const
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{
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for (const auto& vbo_obj : vbo_list)
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{
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if (vbo_obj.vbo->get_buffer_type() == buffer_type)
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return *vbo_obj.vbo;
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}
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return {};
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}
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[[nodiscard]] std::optional<ref<unique_vbo_t>> get_element() const
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{
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for (const auto& vbo_obj : vbo_list)
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{
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if (vbo_obj.is_element())
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return *vbo_obj.vbo;
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}
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return {};
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}
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~unique_vao_t()
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{
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if (vaoID)
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glDeleteVertexArrays(1, &*vaoID);
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}
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private:
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std::optional<GLuint> vaoID;
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std::vector<detail::vao_vbo_storage_t> vbo_list;
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};
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}
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#endif //BLT_GFX_VAO_H
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@ -0,0 +1,214 @@
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#pragma once
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/*
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* Copyright (C) 2024 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_GFX_VBO_H
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#define BLT_GFX_VBO_H
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#include <blt/gfx/gl_includes.h>
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#include <blt/std/types.h>
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namespace blt::gfx
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{
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class unique_vbo_t;
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namespace detail
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{
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/**
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* So long as this class is called from vbo.bind(), it is always valid to chain any internal functions.
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* This system is designed to be foolproof, so don't get too clever
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*/
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class vbo_context_t
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{
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friend unique_vbo_t;
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public:
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vbo_context_t(const vbo_context_t& copy) = delete;
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vbo_context_t(vbo_context_t&& move) = delete;
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vbo_context_t& operator=(const vbo_context_t& copy) = delete;
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vbo_context_t& operator=(vbo_context_t&& move) = delete;
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/**
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* By default, the VBO is bound when this class is constructed (this class should only be constructed through the VBO bind() method)
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*
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* It is very unlikely that you need this method!
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*/
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vbo_context_t& bind();
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vbo_context_t& unbind();
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/**
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* Reserves a chunk of GPU memory for future use
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*/
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vbo_context_t& resize(GLsizeiptr size, GLint mem_type);
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/**
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* Reserves a chunk of GPU memory for future use
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*/
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vbo_context_t& resize(const size_t size, const GLint mem_type)
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{
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return resize(static_cast<GLsizeiptr>(size), mem_type);
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}
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/**
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* Uploads a chunk of memory to the GPU. If the existing VBO has enough space, the memory will be reused.
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*/
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vbo_context_t& upload(size_t size, const void* ptr, GLint mem_type);
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/**
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* Uploads a chunk of memory to the GPU. If the existing VBO has enough space, the memory will be reused.
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*/
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template <typename T, std::enable_if_t<!std::is_same_v<T, void>, bool> = true>
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vbo_context_t& upload(const size_t size, T* ptr, const GLint mem_type)
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{
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return upload(size, static_cast<void*>(ptr), mem_type);
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}
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/**
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* Updates an internal segment of the VBO. This function will never reallocate.
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*/
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vbo_context_t& update(size_t offset, size_t size, const void* ptr);
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/**
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* Updates an internal segment of the VBO. This function will never reallocate.
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*/
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template <typename T, std::enable_if_t<!std::is_same_v<T, void>, bool> = true>
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vbo_context_t& update(const size_t offset, const size_t size, T* ptr)
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{
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return update(offset, size, static_cast<void*>(ptr));
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}
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private:
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[[nodiscard]] bool is_bound() const;
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explicit vbo_context_t(unique_vbo_t& vbo): vbo(vbo)
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{
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bind();
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}
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unique_vbo_t& vbo;
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};
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}
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class unique_vbo_t
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{
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friend class detail::vbo_context_t;
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public:
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explicit unique_vbo_t(const GLuint type): vboID(0), buffer_type(type)
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{
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glGenBuffers(1, &*vboID);
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}
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unique_vbo_t(const unique_vbo_t&) = delete;
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unique_vbo_t& operator=(const unique_vbo_t&) = delete;
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unique_vbo_t(unique_vbo_t&& other) noexcept: vboID(std::exchange(other.vboID, std::nullopt)), buffer_type(other.buffer_type),
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size(other.size), memory_type(other.memory_type)
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{}
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unique_vbo_t& operator=(unique_vbo_t&& other) noexcept
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{
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vboID = std::exchange(other.vboID, vboID);
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buffer_type = std::exchange(other.buffer_type, buffer_type);
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size = std::exchange(other.size, size);
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memory_type = std::exchange(other.memory_type, memory_type);
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return *this;
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}
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/**
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* Changes the internal buffer type of this VBO
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*/
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GLuint change_type(const GLuint type)
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{
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return std::exchange(this->buffer_type, type);
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}
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/**
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* This function binds the VBO to the current buffer_type slot and returns an object which allows you to modify or use this VBO.
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* This allows you to use the VBO without worrying about whether an operation is valid in this context.
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* As so long as you use this object in line, or without binding other VBOs to the same buffer_type
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* (violating the contracts this function attempts to create) then all functions on the associated object are valid to call.
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*
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* You can enable the flag BLT_DEBUG_CONTRACTS which will validate VBO bind state making most of ^ irrelevant
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*/
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detail::vbo_context_t bind();
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[[nodiscard]] auto native_handle() const
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{
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return vboID;
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}
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[[nodiscard]] GLsizeiptr get_size() const
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{
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return size;
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}
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[[nodiscard]] GLint get_memory_type() const
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{
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return memory_type;
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}
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[[nodiscard]] GLuint get_buffer_type() const
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{
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return buffer_type;
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}
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~unique_vbo_t()
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{
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if (vboID)
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glDeleteBuffers(1, &*vboID);
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}
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private:
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std::optional<GLuint> vboID;
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GLuint buffer_type;
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GLsizeiptr size = 0;
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GLint memory_type = 0;
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};
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class unique_ssbo_t : public unique_vbo_t
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{
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public:
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unique_ssbo_t(): unique_vbo_t{GL_SHADER_STORAGE_BUFFER}
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{}
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};
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class unique_ebo_t : public unique_vbo_t
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{
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public:
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unique_ebo_t(): unique_vbo_t{GL_ELEMENT_ARRAY_BUFFER}
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{}
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};
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|
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class unique_ubo_t : public unique_vbo_t
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{
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public:
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explicit unique_ubo_t(const i32 location): unique_vbo_t{GL_UNIFORM_BUFFER}
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{set_location(location);}
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void set_location(i32 new_location);
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[[nodiscard]] i32 get_location() const
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{
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return location;
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}
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private:
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i32 location = 0;
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};
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}
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|
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#endif //BLT_GFX_VBO_H
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|
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@ -1 +1 @@
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Subproject commit e2dc35fea98cc62897169cfc50dbf59fd820cd0e
|
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Subproject commit 2e1bdf945e820348f7ae59922ff41355b9dd3a9c
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|
|
@ -0,0 +1,100 @@
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/*
|
||||
* <Short Description>
|
||||
* Copyright (C) 2025 Brett Terpstra
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
#include <blt/gfx/vao.h>
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#include <blt/gfx/window.h>
|
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#include <blt/std/assert.h>
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#include <blt/std/hashmap.h>
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|
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namespace blt::gfx
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{
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#define ENSURE_CONTEXT_BOUND BLT_CONTRACT(glfwGetCurrentContext() != nullptr, "Expected active OpenGL context!")
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|
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detail::vao_vbo_context_t& detail::vao_vbo_context_t::attribute_ptr(const int attribute_number, const int coordinate_size, const GLenum type,
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const int stride, const long offset)
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{
|
||||
if (!vbo.attribute_numbers)
|
||||
vbo.attribute_numbers = hashset_t<u32>();
|
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if (!vbo.attribute_numbers->contains(attribute_number))
|
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vbo.attribute_numbers->insert(attribute_number);
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glEnableVertexAttribArray(attribute_number);
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glVertexAttribPointer(attribute_number, coordinate_size, type, GL_FALSE, stride < 0 ? 0 : stride, reinterpret_cast<void*>(offset));
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attributed = true;
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return *this;
|
||||
}
|
||||
|
||||
detail::vao_vbo_context_t::~vao_vbo_context_t()
|
||||
{
|
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#if blt_debug_has_flag(BLT_DEBUG_CONTRACTS)
|
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if (!(vbo.is_element() || attributed))
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{
|
||||
BLT_WARN("VBO is not an element array buffer or been assigned to an attribute, are you sure this is what you want?");
|
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BLT_WARN("You can silence this warning by calling .silence()");
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}
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#endif
|
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}
|
||||
|
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detail::vao_context_t& detail::vao_context_t::bind()
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||||
{
|
||||
vao.bind();
|
||||
return *this;
|
||||
}
|
||||
|
||||
detail::vao_context_t& detail::vao_context_t::unbind() // NOLINT
|
||||
{
|
||||
ENSURE_CONTEXT_BOUND;
|
||||
glBindVertexArray(0);
|
||||
return *this;
|
||||
}
|
||||
|
||||
detail::vao_vbo_context_t detail::vao_context_t::attach_vbo(unique_vbo_t&& vbo) const
|
||||
{
|
||||
ENSURE_CONTEXT_BOUND;
|
||||
BLT_CONTRACT(vao.vaoID, "Expected VAO to have an associated VAO ID!");
|
||||
BLT_CONTRACT(is_bound(), "Expected VAO to be bound before attaching VBO! (If you are using this API correctly, this has been done for you!)");
|
||||
|
||||
auto& vbo_storage = vao.vbo_list.emplace_back(std::move(vbo));
|
||||
vbo_storage.vbo->bind();
|
||||
return vao_vbo_context_t{vao, vbo_storage};
|
||||
}
|
||||
|
||||
detail::vao_context_t::~vao_context_t()
|
||||
{
|
||||
if (is_bound())
|
||||
unbind();
|
||||
}
|
||||
|
||||
bool detail::vao_context_t::is_bound() const
|
||||
{
|
||||
GLint current_vao;
|
||||
glGetIntegerv(GL_VERTEX_ARRAY_BINDING, ¤t_vao);
|
||||
return *vao.vaoID == static_cast<GLuint>(current_vao);
|
||||
}
|
||||
|
||||
detail::vao_context_t unique_vao_t::configure()
|
||||
{
|
||||
ENSURE_CONTEXT_BOUND;
|
||||
return detail::vao_context_t{*this};
|
||||
}
|
||||
|
||||
void unique_vao_t::bind() const
|
||||
{
|
||||
ENSURE_CONTEXT_BOUND;
|
||||
BLT_CONTRACT(vaoID, "Expected VAO to have an associated VAO ID!");
|
||||
glBindVertexArray(*vaoID);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,103 @@
|
|||
/*
|
||||
* <Short Description>
|
||||
* Copyright (C) 2025 Brett Terpstra
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
#include <blt/gfx/vbo.h>
|
||||
#include <blt/gfx/window.h>
|
||||
#include <blt/std/assert.h>
|
||||
#include <blt/std/hashmap.h>
|
||||
|
||||
namespace blt::gfx
|
||||
{
|
||||
#if blt_debug_has_flag(BLT_DEBUG_CONTRACTS)
|
||||
static hashmap_t<GLuint, GLuint> bound_vbo_ids;
|
||||
#endif
|
||||
|
||||
namespace detail
|
||||
{
|
||||
vbo_context_t& vbo_context_t::bind()
|
||||
{
|
||||
BLT_CONTRACT(vbo.vboID, "Expected VBO to have an associated VBO ID!");
|
||||
glBindBuffer(vbo.buffer_type, *vbo.vboID);
|
||||
#if blt_debug_has_flag(BLT_DEBUG_CONTRACTS)
|
||||
bound_vbo_ids[vbo.buffer_type] = *vbo.vboID;
|
||||
#endif
|
||||
return *this;
|
||||
}
|
||||
|
||||
vbo_context_t& vbo_context_t::unbind()
|
||||
{
|
||||
glBindBuffer(vbo.buffer_type, 0);
|
||||
#if blt_debug_has_flag(BLT_DEBUG_CONTRACTS)
|
||||
bound_vbo_ids[vbo.buffer_type] = 0;
|
||||
#endif
|
||||
return *this;
|
||||
}
|
||||
|
||||
vbo_context_t& vbo_context_t::resize(const GLsizeiptr size, const GLint mem_type)
|
||||
{
|
||||
BLT_CONTRACT(is_bound(), "Expected VBO to be bound before resizing!");
|
||||
vbo.size = size;
|
||||
vbo.memory_type = mem_type;
|
||||
glBufferData(vbo.buffer_type, size, nullptr, mem_type);
|
||||
return *this;
|
||||
}
|
||||
|
||||
vbo_context_t& vbo_context_t::upload(const size_t size, const void* ptr, const GLint mem_type)
|
||||
{
|
||||
BLT_CONTRACT(is_bound(), "Expected VBO to be bound before uploading!");
|
||||
if (mem_type != vbo.memory_type || static_cast<size_t>(vbo.size) < size)
|
||||
{
|
||||
vbo.size = static_cast<GLsizeiptr>(size);
|
||||
vbo.memory_type = mem_type;
|
||||
glBufferData(vbo.buffer_type, vbo.size, ptr, mem_type);
|
||||
} else
|
||||
{
|
||||
update(0, size, ptr);
|
||||
}
|
||||
return *this;
|
||||
}
|
||||
|
||||
vbo_context_t& vbo_context_t::update(const size_t offset, const size_t size, const void* ptr)
|
||||
{
|
||||
BLT_CONTRACT(is_bound(), "Expected VBO to be bound before updating!");
|
||||
glBufferSubData(vbo.buffer_type, static_cast<GLsizeiptr>(offset), static_cast<GLsizeiptr>(size), ptr);
|
||||
return *this;
|
||||
}
|
||||
|
||||
bool vbo_context_t::is_bound() const
|
||||
{
|
||||
#if blt_debug_has_flag(BLT_DEBUG_CONTRACTS)
|
||||
return bound_vbo_ids[vbo.buffer_type] == *vbo.vboID;
|
||||
#else
|
||||
return true;
|
||||
#endif
|
||||
}
|
||||
}
|
||||
|
||||
detail::vbo_context_t unique_vbo_t::bind()
|
||||
{
|
||||
BLT_CONTRACT(glfwGetCurrentContext() != nullptr, "Expected active OpenGL context!");
|
||||
return detail::vbo_context_t{*this};
|
||||
}
|
||||
|
||||
void unique_ubo_t::set_location(const i32 new_location)
|
||||
{
|
||||
BLT_CONTRACT(native_handle().has_value(), "Expected UBO to have an associated buffer! (You are probably calling this on a moved-from value)");
|
||||
location = new_location;
|
||||
glBindBufferBase(GL_UNIFORM_BUFFER, location, *native_handle());
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue