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feat: rework ebo, vao and vbo

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This commit is contained in:
Loïc GUEZO
2025-12-08 15:53:48 +01:00
parent 0d5caf1d19
commit b8a0cdfa3e
5 changed files with 20 additions and 16 deletions
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5
inc/ebo.hpp
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@@ -5,16 +5,17 @@
#include "glad/glad.h" #include "glad/glad.h"
class EBO class EBO
{ {
private: private:
GLuint id; GLuint id;
public: public:
EBO(unsigned int* indices, size_t size); EBO();
~EBO(); ~EBO();
void setData(unsigned int* indices, size_t size);
void bind(); void bind();
void unbind(); void unbind();
}; };

4
inc/vbo.hpp
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@@ -11,9 +11,11 @@ class VBO
unsigned int id; unsigned int id;
public: public:
VBO(GLfloat* vertices, size_t size); VBO();
~VBO(); ~VBO();
void setData(GLfloat* vertices, size_t size);
void bind(); void bind();
void unbind(); void unbind();
}; };

12
src/ebo.cpp
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@@ -1,14 +1,16 @@
#include "ebo.hpp" #include "ebo.hpp"
EBO::EBO(unsigned int* indices, size_t size) EBO::EBO() : id(0) {}
void EBO::setData(unsigned int* indices, size_t size)
{ {
glGenBuffers(1, &id); if (this->id == 0) glGenBuffers(1, &this->id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, id); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->id);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, size, indices, GL_STATIC_DRAW); glBufferData(GL_ELEMENT_ARRAY_BUFFER, size, indices, GL_STATIC_DRAW);
} }
EBO::~EBO() { glDeleteBuffers(1, &id); } EBO::~EBO() { glDeleteBuffers(1, &this->id); }
void EBO::bind() { glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, id); } void EBO::bind() { glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->id); }
void EBO::unbind() { glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); } void EBO::unbind() { glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); }

3
src/vao.cpp
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@@ -11,7 +11,6 @@ void VAO::unbind() { glBindVertexArray(0); }
void VAO::setAttributePointer(GLuint index, GLuint size, GLenum type, void VAO::setAttributePointer(GLuint index, GLuint size, GLenum type,
GLsizei stride, const void* offset) GLsizei stride, const void* offset)
{ {
bind();
glEnableVertexAttribArray(index); glEnableVertexAttribArray(index);
glVertexAttribPointer(index, size, type, GL_FALSE, stride, offset); glVertexAttribPointer(index, size, type, GL_FALSE, stride, offset);
} }
@@ -19,12 +18,10 @@ void VAO::setAttributePointer(GLuint index, GLuint size, GLenum type,
void VAO::drawElement(GLenum mode, GLsizei count, GLenum type, void VAO::drawElement(GLenum mode, GLsizei count, GLenum type,
const void* indices) const void* indices)
{ {
bind();
glDrawElements(mode, count, type, indices); glDrawElements(mode, count, type, indices);
} }
void VAO::drawArray(GLenum mode, GLint first, GLsizei count) void VAO::drawArray(GLenum mode, GLint first, GLsizei count)
{ {
bind();
glDrawArrays(mode, first, count); glDrawArrays(mode, first, count);
} }

12
src/vbo.cpp
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@@ -1,14 +1,16 @@
#include "vbo.hpp" #include "vbo.hpp"
VBO::VBO(GLfloat* vertices, size_t size) VBO::VBO() : id(0) {}
void VBO::setData(GLfloat* vertices, size_t size)
{ {
glGenBuffers(1, &id); if (this->id == 0) glGenBuffers(1, &this->id);
glBindBuffer(GL_ARRAY_BUFFER, id); glBindBuffer(GL_ARRAY_BUFFER, this->id);
glBufferData(GL_ARRAY_BUFFER, size, vertices, GL_STATIC_DRAW); glBufferData(GL_ARRAY_BUFFER, size, vertices, GL_STATIC_DRAW);
} }
VBO::~VBO() { glDeleteBuffers(1, &id); } VBO::~VBO() { glDeleteBuffers(1, &this->id); }
void VBO::bind() { glBindBuffer(GL_ARRAY_BUFFER, id); } void VBO::bind() { glBindBuffer(GL_ARRAY_BUFFER, this->id); }
void VBO::unbind() { glBindBuffer(GL_ARRAY_BUFFER, 0); } void VBO::unbind() { glBindBuffer(GL_ARRAY_BUFFER, 0); }