git.sur5r.net Git - fstl/blob - src/glmesh.cpp

   1 #include "glmesh.h"
   2 #include "mesh.h"
   3
   4 GLMesh::GLMesh(const Mesh* const mesh)
   5     : vertices(QOpenGLBuffer::VertexBuffer), indices(QOpenGLBuffer::IndexBuffer)
   6 {
   7     initializeOpenGLFunctions();
   8
   9     vertices.create();
  10     indices.create();
  11
  12     vertices.setUsagePattern(QOpenGLBuffer::StaticDraw);
  13     indices.setUsagePattern(QOpenGLBuffer::StaticDraw);
  14
  15     vertices.bind();
  16     vertices.allocate(mesh->vertices.data(),
  17                       mesh->vertices.size() * sizeof(float));
  18     vertices.release();
  19
  20     indices.bind();
  21     indices.allocate(mesh->indices.data(),
  22                      mesh->indices.size() * sizeof(uint32_t));
  23     indices.release();
  24 }
  25
  26 void GLMesh::draw(GLuint vp)
  27 {
  28     vertices.bind();
  29     indices.bind();
  30
  31     glVertexAttribPointer(vp, 3, GL_FLOAT, false, 3*sizeof(float), NULL);
  32     glDrawElements(GL_TRIANGLES, indices.size() / sizeof(uint32_t),
  33                    GL_UNSIGNED_INT, NULL);
  34
  35     vertices.release();
  36     indices.release();
  37 }