/* * $XFree86: xc/programs/Xserver/render/picture.h,v 1.21 2003/11/03 05:12:01 tsi 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))) /* * gray/color formats use a visual index instead of argb */ #define PICT_VISFORMAT(bpp,type,vi) (((bpp) << 24) | \ ((type) << 16) | \ ((vi))) #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_FORMAT_VIS(f) (((f) ) & 0xffff) #define PICT_TYPE_OTHER 0 #define PICT_TYPE_A 1 #define PICT_TYPE_ARGB 2 #define PICT_TYPE_ABGR 3 #define PICT_TYPE_COLOR 4 #define PICT_TYPE_GRAY 5 #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) #define PICT_a4r4g4b4 PICT_FORMAT(16,PICT_TYPE_ARGB,4,4,4,4) #define PICT_x4r4g4b4 PICT_FORMAT(16,PICT_TYPE_ARGB,4,4,4,4) #define PICT_a4b4g4r4 PICT_FORMAT(16,PICT_TYPE_ARGB,4,4,4,4) #define PICT_x4b4g4r4 PICT_FORMAT(16,PICT_TYPE_ARGB,4,4,4,4) /* 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) #define PICT_c8 PICT_FORMAT(8,PICT_TYPE_COLOR,0,0,0,0) #define PICT_g8 PICT_FORMAT(8,PICT_TYPE_GRAY,0,0,0,0) /* 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) #define PICT_c4 PICT_FORMAT(4,PICT_TYPE_COLOR,0,0,0,0) #define PICT_g4 PICT_FORMAT(4,PICT_TYPE_GRAY,0,0,0,0) /* 1bpp formats */ #define PICT_a1 PICT_FORMAT(1,PICT_TYPE_A,1,0,0,0) #define PICT_g1 PICT_FORMAT(1,PICT_TYPE_GRAY,0,0,0,0) /* * For dynamic indexed visuals (GrayScale and PseudoColor), these control the * selection of colors allocated for drawing to Pictures. The default * policy depends on the size of the colormap: * * Size Default Policy * ---------------------------- * < 64 PolicyMono * < 256 PolicyGray * 256 PolicyColor (only on PseudoColor) * * The actual allocation code lives in miindex.c, and so is * austensibly server dependent, but that code does: * * PolicyMono Allocate no additional colors, use black and white * PolicyGray Allocate 13 gray levels (11 cells used) * PolicyColor Allocate a 4x4x4 cube and 13 gray levels (71 cells used) * PolicyAll Allocate as big a cube as possible, fill with gray (all) * * Here's a picture to help understand how many colors are * actually allocated (this is just the gray ramp): * * gray level * all 0000 1555 2aaa 4000 5555 6aaa 8000 9555 aaaa bfff d555 eaaa ffff * b/w 0000 ffff * 4x4x4 5555 aaaa * extra 1555 2aaa 4000 6aaa 8000 9555 bfff d555 eaaa * * The default colormap supplies two gray levels (black/white), the * 4x4x4 cube allocates another two and nine more are allocated to fill * in the 13 levels. When the 4x4x4 cube is not allocated, a total of * 11 cells are allocated. */ #define PictureCmapPolicyInvalid -1 #define PictureCmapPolicyDefault 0 #define PictureCmapPolicyMono 1 #define PictureCmapPolicyGray 2 #define PictureCmapPolicyColor 3 #define PictureCmapPolicyAll 4 extern int PictureCmapPolicy; int PictureParseCmapPolicy (const char *name); /* Fixed point updates from Carl Worth, USC, Information Sciences Institute */ #ifdef WIN32 typedef __int64 xFixed_32_32; #else # if defined (_LP64) || \ defined(__alpha__) || defined(__alpha) || \ defined(ia64) || defined(__ia64__) || \ defined(__sparc64__) || \ defined(__s390x__) || \ defined(AMD64) || defined (__AMD64__) || \ (defined(sgi) && (_MIPS_SZLONG == 64)) typedef long xFixed_32_32; # else # if defined(__GNUC__) && \ ((__GNUC__ > 2) || \ ((__GNUC__ == 2) && defined(__GNUC_MINOR__) && (__GNUC_MINOR__ > 7))) __extension__ # endif typedef long long int xFixed_32_32; # endif #endif typedef CARD32 xFixed_1_31; typedef CARD32 xFixed_1_16; typedef INT32 xFixed_16_16; /* * An unadorned "xFixed" is the same as xFixed_16_16, * (since it's quite common in the code) */ typedef xFixed_16_16 xFixed; #define XFIXED_BITS 16 #define xFixedToInt(f) (int) ((f) >> XFIXED_BITS) #define IntToxFixed(i) ((xFixed) (i) << XFIXED_BITS) #define xFixedE ((xFixed) 1) #define xFixed1 (IntToxFixed(1)) #define xFixed1MinusE (xFixed1 - xFixedE) #define xFixedFrac(f) ((f) & xFixed1MinusE) #define xFixedFloor(f) ((f) & ~xFixed1MinusE) #define xFixedCeil(f) xFixedFloor((f) + xFixed1MinusE) #define xFixedFraction(f) ((f) & xFixed1MinusE) #define xFixedMod2(f) ((f) & (xFixed1 | xFixed1MinusE)) /* whether 't' is a well defined not obviously empty trapezoid */ #define xTrapezoidValid(t) ((t)->left.p1.y != (t)->left.p2.y && \ (t)->right.p1.y != (t)->right.p2.y && \ (int) ((t)->bottom - (t)->top) > 0) /* * Standard NTSC luminance conversions: * * y = r * 0.299 + g * 0.587 + b * 0.114 * * Approximate this for a bit more speed: * * y = (r * 153 + g * 301 + b * 58) / 512 * * This gives 17 bits of luminance; to get 15 bits, lop the low two */ #define CvtR8G8B8toY15(s) (((((s) >> 16) & 0xff) * 153 + \ (((s) >> 8) & 0xff) * 301 + \ (((s) ) & 0xff) * 58) >> 2) #endif /* _PICTURE_H_ */