void FrameBufferObject::End(GraphicsState & glstate, std::ostream & error_output)
{
CheckForOpenGLErrors("start of FBO end", error_output);
if (singlesample_framebuffer_object)
{
glstate.BindFramebuffer(GL_READ_FRAMEBUFFER, framebuffer_object);
glstate.BindFramebuffer(GL_DRAW_FRAMEBUFFER, singlesample_framebuffer_object->framebuffer_object);
assert(glCheckFramebufferStatus(GL_READ_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE);
assert(glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE);
CheckForOpenGLErrors("FBO end multisample binding", error_output);
const int w = singlesample_framebuffer_object->GetWidth();
const int h = singlesample_framebuffer_object->GetHeight();
glBlitFramebuffer(0, 0, w, h, 0, 0, w, h, GL_COLOR_BUFFER_BIT, GL_NEAREST);
CheckForOpenGLErrors("FBO end multisample blit", error_output);
}
CheckForOpenGLErrors("FBO multisample blit", error_output);
// optionally rebuild mipmaps
for (std::vector <FrameBufferTexture*>::const_iterator i = textures.begin(); i != textures.end(); i++)
{
if ((*i)->HasMipMap())
{
glstate.BindTexture(0, (*i)->GetTarget(), (*i)->GetId());
glGenerateMipmap((*i)->GetTarget());
glstate.BindTexture(0, (*i)->GetTarget(), 0);
}
}
CheckForOpenGLErrors("end of FBO end", error_output);
}
void RenderInputScene::SetTextures(
GraphicsState & glstate,
const std::vector <TextureInterface*> & textures,
std::ostream & error_output)
{
for (unsigned i = 0; i < textures.size(); i++)
{
if (textures[i])
{
glstate.BindTexture(i, textures[i]->GetTarget(), textures[i]->GetId());
if (CheckForOpenGLErrors("RenderDrawlists extra texture bind", error_output))
{
error_output << "this error occurred while binding texture " << i << " id=" << textures[i]->GetId() << std::endl;
}
}
}
}
void RenderInputScene::SetTextures(const Drawable & d, GraphicsState & glstate)
{
glstate.BindTexture(0, GL_TEXTURE_2D, d.GetTexture0());
glstate.BindTexture(1, GL_TEXTURE_2D, d.GetTexture1());
glstate.BindTexture(2, GL_TEXTURE_2D, d.GetTexture2());
}
