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/*
* $XFree86: xc/programs/Xserver/render/picture.h,v 1.5 2000/11/21 04:11:42 keithp Exp $
*
* Copyright © 2000 SuSE, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of SuSE not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. SuSE makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: Keith Packard, SuSE, Inc.
*/
#ifndef _PICTURE_H_
#define _PICTURE_H_
typedef struct _DirectFormat *DirectFormatPtr;
typedef struct _PictFormat *PictFormatPtr;
typedef struct _Picture *PicturePtr;
/*
* While the protocol is generous in format support, the
* sample implementation allows only packed RGB and GBR
* representations for data to simplify software rendering,
*/
#define PICT_FORMAT(bpp,type,a,r,g,b) (((bpp) << 24) | \
((type) << 16) | \
((a) << 12) | \
((r) << 8) | \
((g) << 4) | \
((b)))
#define PICT_FORMAT_BPP(f) (((f) >> 24) )
#define PICT_FORMAT_TYPE(f) (((f) >> 16) & 0xff)
#define PICT_FORMAT_A(f) (((f) >> 12) & 0x0f)
#define PICT_FORMAT_R(f) (((f) >> 8) & 0x0f)
#define PICT_FORMAT_G(f) (((f) >> 4) & 0x0f)
#define PICT_FORMAT_B(f) (((f) ) & 0x0f)
#define PICT_FORMAT_RGB(f) (((f) ) & 0xfff)
#define PICT_OTHER 0
#define PICT_TYPE_A 1
#define PICT_TYPE_ARGB 2
#define PICT_TYPE_ABGR 3
#define PICT_TYPE_INDEX 4
#define PICT_FORMAT_COLOR(f) (PICT_FORMAT_TYPE(f) & 2)
/* 32bpp formats */
#define PICT_a8r8g8b8 PICT_FORMAT(32,PICT_TYPE_ARGB,8,8,8,8)
#define PICT_x8r8g8b8 PICT_FORMAT(32,PICT_TYPE_ARGB,0,8,8,8)
#define PICT_a8b8g8r8 PICT_FORMAT(32,PICT_TYPE_ABGR,8,8,8,8)
#define PICT_x8b8g8r8 PICT_FORMAT(32,PICT_TYPE_ABGR,0,8,8,8)
/* 24bpp formats */
#define PICT_r8g8b8 PICT_FORMAT(24,PICT_TYPE_ARGB,0,8,8,8)
#define PICT_b8g8r8 PICT_FORMAT(24,PICT_TYPE_ABGR,0,8,8,8)
/* 16bpp formats */
#define PICT_r5g6b5 PICT_FORMAT(16,PICT_TYPE_ARGB,0,5,6,5)
#define PICT_b5g6r5 PICT_FORMAT(16,PICT_TYPE_ABGR,0,5,6,5)
#define PICT_a1r5g5b5 PICT_FORMAT(16,PICT_TYPE_ARGB,1,5,5,5)
#define PICT_x1r5g5b5 PICT_FORMAT(16,PICT_TYPE_ARGB,0,5,5,5)
#define PICT_a1b5g5r5 PICT_FORMAT(16,PICT_TYPE_ABGR,1,5,5,5)
#define PICT_x1b5g5r5 PICT_FORMAT(16,PICT_TYPE_ABGR,0,5,5,5)
/* 8bpp formats */
#define PICT_a8 PICT_FORMAT(8,PICT_TYPE_A,8,0,0,0)
#define PICT_r3g3b2 PICT_FORMAT(8,PICT_TYPE_ARGB,0,3,3,2)
#define PICT_b2g3r3 PICT_FORMAT(8,PICT_TYPE_ABGR,0,3,3,2)
#define PICT_a2r2g2b2 PICT_FORMAT(8,PICT_TYPE_ARGB,2,2,2,2)
#define PICT_a2b2g2r2 PICT_FORMAT(8,PICT_TYPE_ABGR,2,2,2,2)
/* 4bpp formats */
#define PICT_a4 PICT_FORMAT(4,PICT_TYPE_A,4,0,0,0)
#define PICT_r1g2b1 PICT_FORMAT(4,PICT_TYPE_ARGB,0,1,2,1)
#define PICT_b1g2r1 PICT_FORMAT(4,PICT_TYPE_ABGR,0,1,2,1)
#define PICT_a1r1g1b1 PICT_FORMAT(4,PICT_TYPE_ARGB,1,1,1,1)
#define PICT_a1b1g1r1 PICT_FORMAT(4,PICT_TYPE_ABGR,1,1,1,1)
/* 1bpp formats */
#define PICT_a1 PICT_FORMAT(1,PICT_TYPE_A,1,0,0,0)
#define FixedToInt(f) (int) ((f) >> 8)
#define IntToFixed(i) ((Fixed) (i) << 8)
#define FixedE ((Fixed) 1)
#define Fixed1 (IntToFixed(1))
#define Fixed1minusE (Fixed1 - FixedE)
#define FixedCeil(f) (((f) + Fixed1minusE) & ~Fixed1MinusE)
#define FixedFloor(f) ((f) & ~Fixed1MinusE)
#endif /* _PICTURE_H_ */
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