lauchmelder/OpenGL-utility
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Added documentation

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This commit is contained in:
Robert 2021-01-21 15:30:48 +01:00
parent 0a7a835bcc
commit da26e0391f
12 changed files with 930 additions and 79 deletions

81
src/object.cpp
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@ -1,81 +0,0 @@
#include "object.hpp"
namespace oglu
{
AbstractVertexArray::AbstractVertexArray(const AbstractVertexArray& other) :
VAO(other.VAO), VBO(other.VBO), EBO(other.EBO), count(other.count)
{
}
AbstractVertexArray::~AbstractVertexArray()
{
glBindVertexArray(0);
glDeleteVertexArrays(1, &VAO);
glDeleteBuffers(1, &VBO);
glDeleteBuffers(1, &EBO);
}
VertexArray MakeObject(const GLfloat* vertices, size_t verticesSize, const GLuint* indices, size_t indicesSize, const VertexAttribute* topology, size_t topologySize)
{
AbstractVertexArray* obj = new AbstractVertexArray(vertices, verticesSize, indices, indicesSize, topology, topologySize);
return VertexArray(obj);
}
AbstractVertexArray::AbstractVertexArray(const GLfloat* vertices, size_t verticesSize,
const GLuint* indices, size_t indicesSize,
const VertexAttribute* topology, size_t topologySize) :
VAO(0), VBO(0), EBO(0), count(0)
{
topologySize /= sizeof(VertexAttribute);
glGenBuffers(1, &VBO);
glGenBuffers(1, &EBO);
glGenVertexArrays(1, &VAO);
glBindVertexArray(VAO);
glBindBuffer(GL_ARRAY_BUFFER, VBO);
glBufferData(GL_ARRAY_BUFFER, verticesSize, vertices, GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesSize, indices, GL_STATIC_DRAW);
for (int i = 0; i < topologySize; i++)
{
RegisterVertexAttribPointer(i, topology[i]);
}
glBindVertexArray(0);
count = indicesSize / sizeof(GLuint);
}
void AbstractVertexArray::Bind()
{
glBindVertexArray(VAO);
}
void AbstractVertexArray::Unbind()
{
glBindVertexArray(0);
}
void AbstractVertexArray::Draw()
{
glDrawElements(GL_TRIANGLES, count, GL_UNSIGNED_INT, (GLvoid*)0);
}
void AbstractVertexArray::BindAndDraw()
{
glBindVertexArray(VAO);
glDrawElements(GL_TRIANGLES, count, GL_UNSIGNED_INT, (GLvoid*)0);
glBindVertexArray(0);
}
void AbstractVertexArray::RegisterVertexAttribPointer(GLuint index, const VertexAttribute& topology)
{
glVertexAttribPointer(topology.index, topology.size, topology.type, topology.normalized, topology.stride, topology.pointer);
glEnableVertexAttribArray(index);
}
}