From 6ed978051668c08f5a957c97570f364dd580c807 Mon Sep 17 00:00:00 2001
From: Mel <einebeere@gmail.com>
Date: Fri, 21 Oct 2022 01:03:18 +0200
Subject: Namespace and Folder refactor

---
 src/GFX/Binder.cpp | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 src/GFX/Binder.cpp

(limited to 'src/GFX/Binder.cpp')

diff --git a/src/GFX/Binder.cpp b/src/GFX/Binder.cpp
new file mode 100644
index 0000000..e7b7e4c
--- /dev/null
+++ b/src/GFX/Binder.cpp
@@ -0,0 +1,65 @@
+#include <GL/glew.h>
+#include "Binder.hpp"
+#include "Mesh.hpp"
+
+namespace MC::GFX {
+
+BindableMesh Binder::load(Mesh& mesh) {
+    auto vao = create_vao();
+    if (mesh.indices_size() > 0) {
+        store_indices(mesh.raw_indices(), mesh.indices_size());
+    }
+    store_in_attribute_list(0, 3, mesh.raw(), mesh.size() * 3);
+    store_in_attribute_list(1, 2, mesh.raw_tex_coords(), mesh.tex_coords_size() * 2);
+    unbind_vao();
+
+    return {vao, mesh.indices_size()};
+}
+
+uint32_t Binder::create_vao() {
+    GLuint vao;
+    glGenVertexArrays(1, &vao);
+    glBindVertexArray(vao);
+
+    return static_cast<uint32_t>(vao);
+}
+
+void Binder::unbind_vao() {
+    glBindVertexArray(0);
+}
+
+void Binder::store_indices(uint32_t* indices, size_t indices_size) {
+    GLuint ebo;
+    glGenBuffers(1, &ebo);
+
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ebo);
+    glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices_size * sizeof(float), indices, GL_STATIC_DRAW);
+}
+
+void Binder::store_in_attribute_list(uint32_t attribute, size_t size, float* data, size_t data_size) {
+    GLuint vbo;
+    glGenBuffers(1, &vbo);
+
+    glBindBuffer(GL_ARRAY_BUFFER, vbo);
+    glBufferData(GL_ARRAY_BUFFER, data_size * sizeof(float), data, GL_STATIC_DRAW);
+    glVertexAttribPointer(attribute, size, GL_FLOAT, GL_FALSE, size * sizeof(float), nullptr);
+    glBindBuffer(GL_ARRAY_BUFFER, 0);
+}
+
+void BindableMesh::bind() const {
+    glBindVertexArray(m_vao);
+    glEnableVertexAttribArray(0);
+    glEnableVertexAttribArray(1);
+}
+
+void BindableMesh::unbind() {
+    glBindVertexArray(0);
+    glDisableVertexAttribArray(0);
+    glDisableVertexAttribArray(1);
+}
+
+size_t BindableMesh::size() const {
+    return m_vertex_count;
+}
+
+}
\ No newline at end of file
-- 
cgit 1.4.1