bool GL::GeometryBuffer::Update(const bool init) {
currBufferSize = GetWantedSize(true);
// FBO must be valid from point of construction
if (!buffer.IsValid())
return false;
// buffer isn't bound by calling context, can not call
// GetStatus to check for GL_FRAMEBUFFER_COMPLETE here
//
if (HasAttachments()) {
// technically a buffer can not be complete yet during
// initialization, however the GL spec says that FBO's
// with only empty attachments are complete by default
// assert(!init);
// FBO was already initialized (during init or from Lua)
// so it will have attachments -> check if they need to
// be regenerated, eg. if a window resize event happened
if (prevBufferSize == currBufferSize)
return true;
DetachTextures(init);
}
return (Create(prevBufferSize = currBufferSize));
}
void GL::GeometryBuffer::Kill(bool dtor) {
if (dead) {
// if already dead, this must be final cleanup
assert(dtor);
return;
}
if (buffer.IsValid())
DetachTextures(false);
dead = true;
}
void GL::GeometryBuffer::Kill() {
if (buffer.IsValid()) {
DetachTextures(false);
}
}