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tx3912videovar.h revision 1.5 
      1 /*	$NetBSD: tx3912videovar.h,v 1.5 2000/05/08 21:57:58 uch Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1999, 2000 UCHIYAMA Yasushi.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 int	tx3912video_init __P((paddr_t, paddr_t *));
     30 
     31 /*
     32  * 8bpp CLUT
     33  */
     34 #define TX3912VIDEO_RGB24TOINDEX(rgb)					\
     35 	((((((rgb) >> 16) & 0xff) >> 5) << 5) |				\
     36 	 (((((rgb) >> 8) & 0xff) >> 5) << 2) |				\
     37 	 ((((rgb) & 0xff) >> 6)))
     38 
     39 /* system color */
     40 #define TX3912VIDEO_BLACK		TX3912VIDEO_RGB24TOINDEX(0x000000)
     41 #define TX3912VIDEO_RED			TX3912VIDEO_RGB24TOINDEX(0xff0000)
     42 #define TX3912VIDEO_GREEN		TX3912VIDEO_RGB24TOINDEX(0x00ff00)
     43 #define TX3912VIDEO_YELLOW		TX3912VIDEO_RGB24TOINDEX(0xffff00)
     44 #define TX3912VIDEO_BLUE		TX3912VIDEO_RGB24TOINDEX(0x0000ff)
     45 #define TX3912VIDEO_MAGENTA		TX3912VIDEO_RGB24TOINDEX(0xff00ff)
     46 #define TX3912VIDEO_CYAN		TX3912VIDEO_RGB24TOINDEX(0x00ffff)
     47 #define TX3912VIDEO_WHITE		TX3912VIDEO_RGB24TOINDEX(0xffffff)
     48 #define TX3912VIDEO_DARK_BLACK		TX3912VIDEO_RGB24TOINDEX(0x000000)
     49 #define TX3912VIDEO_DARK_RED		TX3912VIDEO_RGB24TOINDEX(0x800000)
     50 #define TX3912VIDEO_DARK_GREEN		TX3912VIDEO_RGB24TOINDEX(0x008000)
     51 #define TX3912VIDEO_DARK_YELLOW		TX3912VIDEO_RGB24TOINDEX(0x808000)
     52 #define TX3912VIDEO_DARK_BLUE		TX3912VIDEO_RGB24TOINDEX(0x000080)
     53 #define TX3912VIDEO_DARK_MAGENTA	TX3912VIDEO_RGB24TOINDEX(0x800080)
     54 #define TX3912VIDEO_DARK_CYAN		TX3912VIDEO_RGB24TOINDEX(0x008080)
     55 #define TX3912VIDEO_DARK_WHITE		TX3912VIDEO_RGB24TOINDEX(0x808080)
     56 
     57 /*
     58  * Y =  0.2990 * R + 0.5870 * G + 0.1140 * B
     59  * U = -0.1690 * R - 0.3316 * G + 0.5000 * B
     60  * V =  0.5000 * R - 0.4186 * G - 0.0813 * B
     61  */
     62 
     63 /*
     64  * debug functions.
     65  */
     66 void	tx3912video_calibration_pattern __P((void));
     67 void	tx3912video_line __P((int, int, int, int));
     68 void	tx3912video_dot __P((int, int));
     69