/*

 *  Render Engine for framebuffer devices

 *

 *  Copyright (c) 2008 CodeSourcery

 *

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

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library 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

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */

/* This file builds the definition tree. */

/*

    Tree levels:

        DEFINING_DEST_BPP

        DEFINING_COLOR_ORDER

        DEFINING_BYTE_ORDER

        DEFINING_PIXEL_ORDER

*/

/* this is for the first time definitions */

#ifndef DEFINING_WHAT

#   define FB_LITTLE_ENDIAN 0

#   define FB_BIG_ENDIAN    1

#   define FB_CO_RGB    0

#   define FB_CO_BGR    1

#   define DEFINING_DEST_BPP        1

#   define DEFINING_SRC_COLOR_ORDER 2

#   define DEFINING_SRC_BYTE_ORDER  3

#   define DEFINING_SRC_PIXEL_ORDER 4

#   define DEFINING_FUNCTIONS       5   /* Tree leaf */

#   define DEFINING_WHAT    DEFINING_DEST_BPP   /* first definition level */

#endif

/* Begin tree:

    Each #if DEFINING_WHAT == XXX has one block per option of that level.

    For example, DEFINING_DEST_BPP will have 5 blocks (8,15,16,24,32).

    Each of these blocks has the same format:

        undef DEFINING_WHAT

        define DEFINING_WHAT (next level)

        define option

        include "fb_render_def.h"

        undef option

    So, at the end of each block, the only remaining definition is DEFINING_WHAT.

    New combining factors (i.e. more parameters for DEST, such as COLOR ORDER,

    BYTE ORDER, etc.) will have to be added as new blocks.

*/

#if DEFINING_WHAT == DEFINING_DEST_BPP

#   undef DEFINING_WHAT

#   define DEFINING_WHAT    DEFINING_SRC_COLOR_ORDER

#   define DEST_BPP 8

#   include "fb_render_def.h"

#   undef DEST_BPP

#   undef DEFINING_WHAT

#   define DEFINING_WHAT    DEFINING_SRC_COLOR_ORDER

#   define DEST_BPP 15

#   include "fb_render_def.h"

#   undef DEST_BPP

#   undef DEFINING_WHAT

#   define DEFINING_WHAT    DEFINING_SRC_COLOR_ORDER

#   define DEST_BPP 16

#   include "fb_render_def.h"

#   undef DEST_BPP

#   undef DEFINING_WHAT

#   define DEFINING_WHAT    DEFINING_SRC_COLOR_ORDER

#   define DEST_BPP 24

#   include "fb_render_def.h"

#   undef DEST_BPP

#   undef DEFINING_WHAT

#   define DEFINING_WHAT    DEFINING_SRC_COLOR_ORDER

#   define DEST_BPP 32

#   include "fb_render_def.h"

#   undef DEST_BPP

#elif DEFINING_WHAT == DEFINING_SRC_COLOR_ORDER

#   undef DEFINING_WHAT

#   define DEFINING_WHAT    DEFINING_SRC_BYTE_ORDER

#   define FB_SRC_COLOR_ORDER   FB_CO_BGR

#   include "fb_render_def.h"

#   undef FB_SRC_COLOR_ORDER

#   undef DEFINING_WHAT

#   define DEFINING_WHAT    DEFINING_SRC_BYTE_ORDER

#   define FB_SRC_COLOR_ORDER   FB_CO_RGB

#   include "fb_render_def.h"

#   undef FB_SRC_COLOR_ORDER

#elif DEFINING_WHAT == DEFINING_SRC_BYTE_ORDER

#   undef DEFINING_WHAT

#   define DEFINING_WHAT    DEFINING_SRC_PIXEL_ORDER

#   define FB_SRC_BYTE_ORDER    FB_LITTLE_ENDIAN

#   include "fb_render_def.h"

#   undef FB_SRC_BYTE_ORDER

#   undef DEFINING_WHAT

#   define DEFINING_WHAT    DEFINING_SRC_PIXEL_ORDER

#   define FB_SRC_BYTE_ORDER    FB_BIG_ENDIAN

#   include "fb_render_def.h"

#   undef FB_SRC_BYTE_ORDER

#elif DEFINING_WHAT == DEFINING_SRC_PIXEL_ORDER

#   undef DEFINING_WHAT

#   define DEFINING_WHAT    DEFINING_FUNCTIONS

#   define FB_SRC_PIXEL_ORDER    FB_LITTLE_ENDIAN

#   include "fb_render_def.h"

#   undef FB_SRC_PIXEL_ORDER

#   undef DEFINING_WHAT

#   define DEFINING_WHAT    DEFINING_FUNCTIONS

#   define FB_SRC_PIXEL_ORDER    FB_BIG_ENDIAN

#   include "fb_render_def.h"

#   undef FB_SRC_PIXEL_ORDER

#elif DEFINING_WHAT == DEFINING_FUNCTIONS

#   undef DEFINING_WHAT

    /* End of recursion. Include the template now */

#   include "fb_render_template.h"

#endif