git.mutantstargoat.com Git - demo/blob - src/opengl/uniforms-gl.cc

   1 #include <GL/glew.h>
   2
   3 #include "uniforms-gl.h"
   4
   5 UniformBufferGL::UniformBufferGL()
   6 {
   7         ubo = 0;
   8 }
   9
  10 UniformBufferGL::~UniformBufferGL()
  11 {
  12         destroy();
  13 }
  14
  15 bool UniformBufferGL::create(int size)
  16 {
  17         glGenBuffers(1, &ubo);
  18         glBindBuffer(GL_UNIFORM_BUFFER, ubo);
  19         glBufferData(GL_UNIFORM_BUFFER, size, 0, GL_STREAM_DRAW);
  20
  21         return UniformBuffer::create(size);
  22 }
  23
  24 void UniformBufferGL::destroy()
  25 {
  26         glDeleteBuffers(1, &ubo);
  27 }
  28
  29 void UniformBufferGL::bind(int binding) const
  30 {
  31         //glBindBuffer(GL_UNIFORM_BUFFER, ubo);
  32         glBindBufferBase(GL_UNIFORM_BUFFER, binding, ubo);
  33 }
  34
  35 void UniformBufferGL::update(void *data)
  36 {
  37         glBindBuffer(GL_UNIFORM_BUFFER, ubo);
  38         glBufferSubData(GL_UNIFORM_BUFFER, 0, size, data);
  39 }