1 /*

     2  *  Render Engine for framebuffer devices

     3  *

     4  *  Copyright (c) 2008 CodeSourcery

     5  *

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

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

     8  * License as published by the Free Software Foundation; either

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

    10  *

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

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

    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    14  * Lesser General Public License for more details.

    15  *

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

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

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

    19  */

    20 

    21 #define N_DEST_BPP_MODES 5       /* 8, 15, 16, 24, 32 */

    22 #define N_COLOR_ORDERS   2

    23 #define N_BYTE_ORDERS    2

    24 #define N_PIXEL_ORDERS   2

    25 #define N_SRC_BPP_MODES  8

    26 

    27 #define declare_src_bpp_mode(dest_bpp,color_order,byte_order,pixel_order,src_bpp)	\

    28     fb_draw_line##src_bpp##_##byte_order##pixel_order##_##color_order##dest_bpp

    29 

    30 #define declare_pixel_order(dest_bpp,color_order,byte_order,pixel_order)    \

    31 {                                                                           \

    32 	declare_src_bpp_mode(dest_bpp,color_order,byte_order,pixel_order,1),    \

    33 	declare_src_bpp_mode(dest_bpp,color_order,byte_order,pixel_order,2),    \

    34 	declare_src_bpp_mode(dest_bpp,color_order,byte_order,pixel_order,4),    \

    35 	declare_src_bpp_mode(dest_bpp,color_order,byte_order,pixel_order,8),    \

    36 	declare_src_bpp_mode(dest_bpp,color_order,byte_order,pixel_order,15),   \

    37 	declare_src_bpp_mode(dest_bpp,color_order,byte_order,pixel_order,16),   \

    38 	declare_src_bpp_mode(dest_bpp,color_order,byte_order,pixel_order,24),   \

    39 	declare_src_bpp_mode(dest_bpp,color_order,byte_order,pixel_order,32),   \

    40 }

    41 

    42 #define declare_byte_order(dest_bpp,color_order,byte_order)     \

    43 {                                                               \

    44 	declare_pixel_order(dest_bpp,color_order,byte_order,lp),    \

    45 	declare_pixel_order(dest_bpp,color_order,byte_order,bp)     \

    46 }

    47 

    48 #define declare_color_order(dest_bpp,color_order)   \

    49 {                                                   \

    50 	declare_byte_order(dest_bpp,color_order,lb),    \

    51 	declare_byte_order(dest_bpp,color_order,bb)     \

    52 }

    53 

    54 #define declare_dest_bpp_mode(dest_bpp) \

    55 {                                       \

    56     declare_color_order(dest_bpp,bgr),  \

    57     declare_color_order(dest_bpp,rgb)   \

    58 }

    59 

    60 static row_draw_fn fb_draw_fn[N_DEST_BPP_MODES][N_COLOR_ORDERS][N_BYTE_ORDERS][N_PIXEL_ORDERS][N_SRC_BPP_MODES] =

    61 {

    62     declare_dest_bpp_mode(8),

    63     declare_dest_bpp_mode(15),

    64     declare_dest_bpp_mode(16),

    65     declare_dest_bpp_mode(24),

    66     declare_dest_bpp_mode(32)

    67 };

    68