portersky
30ddaf7d39
- Add glm dependency for matrix transformations - Replace triangle with 6-face colored cube - Add MVP shader uniforms (model, view, projection) - Enable depth testing for proper 3D rendering - Spin cube around (1, 0.5, 0.3) axis style: fix trailing return type for move assignment operators - buffer/texture/shader/vao: use auto fn() -> T& style - Document trailing return type convention in AGENTS.md
73 lines
1.4 KiB
C++
73 lines
1.4 KiB
C++
#include "cbt/opengl/buffer.hpp"
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#include "glad/glad.h"
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namespace cbt::opengl {
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buffer::buffer() {
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glGenBuffers(1, &m_id);
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}
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buffer::buffer(buffer_type type)
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: m_type(type) {
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glGenBuffers(1, &m_id);
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}
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buffer::~buffer() {
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if (m_id) {
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glDeleteBuffers(1, &m_id);
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}
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}
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buffer::buffer(buffer&& other) noexcept
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: m_id(other.m_id)
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, m_type(other.m_type) {
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other.m_id = 0;
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}
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auto buffer::operator=(buffer&& other) noexcept -> buffer& {
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if (this != &other) {
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if (m_id) {
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glDeleteBuffers(1, &m_id);
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}
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m_id = other.m_id;
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m_type = other.m_type;
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other.m_id = 0;
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}
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return *this;
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}
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auto buffer::bind() const -> void {
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glBindBuffer(static_cast<GLenum>(m_type), m_id);
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}
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auto buffer::unbind() const -> void {
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glBindBuffer(static_cast<GLenum>(m_type), 0);
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}
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auto buffer::upload(void const* data, size_t size) -> void {
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bind();
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glBufferData(static_cast<GLenum>(m_type), size, data, GL_STATIC_DRAW);
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unbind();
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}
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auto buffer::upload(std::vector<uint8_t> data) -> void {
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upload(data.data(), data.size());
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}
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auto buffer::upload_dynamic(void const* data, size_t size) -> void {
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bind();
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glBufferData(static_cast<GLenum>(m_type), size, data, GL_DYNAMIC_DRAW);
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unbind();
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}
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auto buffer::id() const -> GLuint {
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return m_id;
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}
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auto buffer::valid() const -> bool {
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return m_id != 0;
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}
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}
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