lxdream.org :: lxdream/src/drivers/video

tree revision 429:e581b90c3fb3

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     1 /**

     2  * $Id: video_null.c,v 1.5 2007-10-08 11:49:35 nkeynes Exp $

     3  *

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

     5  *

     6  * Copyright (c) 2005 Nathan Keynes.

     7  *

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

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

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

    11  * (at your option) any later version.

    12  *

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

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

    15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    16  * GNU General Public License for more details.

    17  */

    19 #include "display.h"

    21 render_buffer_t video_null_create_render_buffer( uint32_t hres, uint32_t vres )

    22 {

    23     return NULL;

    24 }

    26 void video_null_destroy_render_buffer( render_buffer_t buffer )

    27 {

    28 }

    30 gboolean video_null_set_render_target( render_buffer_t buffer )

    31 {

    32     return TRUE;

    33 }

    35 gboolean video_null_display_render_buffer( render_buffer_t buffer )

    36 {

    37     return TRUE;

    38 }

    40 gboolean video_null_read_render_buffer( render_buffer_t buffer, unsigned char *target )

    41 {

    42     return TRUE;

    43 }

    45 gboolean video_null_display_frame_buffer( frame_buffer_t buffer )

    46 {

    47     return TRUE;

    48 }

    50 gboolean video_null_display_blank( uint32_t colour )

    51 {

    52     return TRUE;

    53 }

    55 void video_null_display_back_buffer( void )

    56 {

    57 }

    60 struct display_driver display_null_driver = { "null",

    61 					      NULL,

    62 					      NULL,

    63 					      NULL,

    64 					      video_null_create_render_buffer,

    65 					      video_null_destroy_render_buffer,

    66 					      video_null_set_render_target,

    67 					      video_null_display_frame_buffer,

    68 					      video_null_display_render_buffer,

    69 					      video_null_display_blank,

    70 					      video_null_read_render_buffer };