/**

 * $Id$

 *

 * Null video output driver (ie no video output whatsoever)

 *

 * Copyright (c) 2005 Nathan Keynes.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */

#include "display.h"

#include "drivers/video_gl.h"

static gboolean video_null_init( void );

static render_buffer_t video_null_create_render_buffer( uint32_t hres, uint32_t vres, GLuint tex_id )

{

    return NULL;

}

static void video_null_destroy_render_buffer( render_buffer_t buffer )

{

}

static gboolean video_null_set_render_target( render_buffer_t buffer )

{

    return TRUE;

}

static void video_null_finish_render( render_buffer_t buffer )

{

}

static void video_null_display_render_buffer( render_buffer_t buffer )

{

}

static gboolean video_null_read_render_buffer( unsigned char *target, 

                                               render_buffer_t buffer, 

                                               int rowstride, int format )

{

    return TRUE;

}

static void video_null_load_frame_buffer( frame_buffer_t frame, 

                                          render_buffer_t buffer )

{

}

static void video_null_display_blank( uint32_t colour )

{

}

static void video_null_swap_buffers(void)

{

}

struct display_driver display_null_driver = { 

        "null",

        N_("Null (no video) driver"),

        video_null_init,

        NULL,

        NULL,

        NULL, 

        NULL,

        video_null_create_render_buffer,

        video_null_destroy_render_buffer,

        video_null_set_render_target,

        video_null_finish_render,

        video_null_load_frame_buffer,

        video_null_display_render_buffer,

        video_null_display_blank,

        video_null_swap_buffers,

        video_null_read_render_buffer,

        NULL };

static gboolean video_null_init( void )

{

    gl_vbo_fallback_init(&display_null_driver);

    return TRUE;

}