/**
 * PANDA 3D SOFTWARE
 * Copyright (c) Carnegie Mellon University.  All rights reserved.
 *
 * All use of this software is subject to the terms of the revised BSD
 * license.  You should have received a copy of this license along
 * with this source code in a file named "LICENSE."
 *
 * @file tinyOffscreenGraphicsPipe.cxx
 * @author drose
 * @date 2009-02-09
 */

#include "pandabase.h"

#include "tinyOffscreenGraphicsPipe.h"
#include "tinyGraphicsStateGuardian.h"
#include "tinyGraphicsBuffer.h"
#include "config_tinydisplay.h"
#include "frameBufferProperties.h"

TypeHandle TinyOffscreenGraphicsPipe::_type_handle;

/**
 *
 */
TinyOffscreenGraphicsPipe::
TinyOffscreenGraphicsPipe() {
  _supported_types = OT_buffer | OT_texture_buffer;
  _is_valid = true;
}

/**
 *
 */
TinyOffscreenGraphicsPipe::
~TinyOffscreenGraphicsPipe() {
}

/**
 * Returns the name of the rendering interface associated with this
 * GraphicsPipe.  This is used to present to the user to allow him/her to
 * choose between several possible GraphicsPipes available on a particular
 * platform, so the name should be meaningful and unique for a given platform.
 */
std::string TinyOffscreenGraphicsPipe::
get_interface_name() const {
  return "TinyPanda";
}

/**
 * This function is passed to the GraphicsPipeSelection object to allow the
 * user to make a default TinyOffscreenGraphicsPipe.
 */
PT(GraphicsPipe) TinyOffscreenGraphicsPipe::
pipe_constructor() {
  return new TinyOffscreenGraphicsPipe;
}

/**
 * Creates a new window on the pipe, if possible.
 */
PT(GraphicsOutput) TinyOffscreenGraphicsPipe::
make_output(const std::string &name,
            const FrameBufferProperties &fb_prop,
            const WindowProperties &win_prop,
            int flags,
            GraphicsEngine *engine,
            GraphicsStateGuardian *gsg,
            GraphicsOutput *host,
            int retry,
            bool &precertify) {
  // Only thing to try: a TinyGraphicsBuffer

  if (retry == 0) {
    if (((flags&BF_require_parasite)!=0)||
        ((flags&BF_require_window)!=0)) {
      return nullptr;
    }
    return new TinyGraphicsBuffer(engine, this, name, fb_prop, win_prop, flags, gsg, host);
  }

  // Nothing else left to try.
  return nullptr;
}