1*4882a593Smuzhiyun /*********************************************************** 2*4882a593Smuzhiyun 3*4882a593Smuzhiyun Copyright 1987, 1998 The Open Group 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun Permission to use, copy, modify, distribute, and sell this software and its 6*4882a593Smuzhiyun documentation for any purpose is hereby granted without fee, provided that 7*4882a593Smuzhiyun the above copyright notice appear in all copies and that both that 8*4882a593Smuzhiyun copyright notice and this permission notice appear in supporting 9*4882a593Smuzhiyun documentation. 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun The above copyright notice and this permission notice shall be included in 12*4882a593Smuzhiyun all copies or substantial portions of the Software. 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15*4882a593Smuzhiyun IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16*4882a593Smuzhiyun FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17*4882a593Smuzhiyun OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 18*4882a593Smuzhiyun AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 19*4882a593Smuzhiyun CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun Except as contained in this notice, the name of The Open Group shall not be 22*4882a593Smuzhiyun used in advertising or otherwise to promote the sale, use or other dealings 23*4882a593Smuzhiyun in this Software without prior written authorization from The Open Group. 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun All Rights Reserved 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun Permission to use, copy, modify, and distribute this software and its 30*4882a593Smuzhiyun documentation for any purpose and without fee is hereby granted, 31*4882a593Smuzhiyun provided that the above copyright notice appear in all copies and that 32*4882a593Smuzhiyun both that copyright notice and this permission notice appear in 33*4882a593Smuzhiyun supporting documentation, and that the name of Digital not be 34*4882a593Smuzhiyun used in advertising or publicity pertaining to distribution of the 35*4882a593Smuzhiyun software without specific, written prior permission. 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 38*4882a593Smuzhiyun ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL 39*4882a593Smuzhiyun DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR 40*4882a593Smuzhiyun ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 41*4882a593Smuzhiyun WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 42*4882a593Smuzhiyun ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 43*4882a593Smuzhiyun SOFTWARE. 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun ******************************************************************/ 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun #ifndef SERVERMD_H 48*4882a593Smuzhiyun #define SERVERMD_H 1 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun #if !defined(_DIX_CONFIG_H_) && !defined(_XORG_SERVER_H_) 51*4882a593Smuzhiyun #error Drivers must include xorg-server.h before any other xserver headers 52*4882a593Smuzhiyun #error xserver code must include dix-config.h before any other headers 53*4882a593Smuzhiyun #endif 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun #include <X11/Xarch.h> /* for X_LITTLE_ENDIAN/X_BIG_ENDIAN */ 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun #if X_BYTE_ORDER == X_LITTLE_ENDIAN 58*4882a593Smuzhiyun #define IMAGE_BYTE_ORDER LSBFirst 59*4882a593Smuzhiyun #define BITMAP_BIT_ORDER LSBFirst 60*4882a593Smuzhiyun #elif X_BYTE_ORDER == X_BIG_ENDIAN 61*4882a593Smuzhiyun #define IMAGE_BYTE_ORDER MSBFirst 62*4882a593Smuzhiyun #define BITMAP_BIT_ORDER MSBFirst 63*4882a593Smuzhiyun #else 64*4882a593Smuzhiyun #error "Too weird to live." 65*4882a593Smuzhiyun #endif 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun #ifndef GLYPHPADBYTES 68*4882a593Smuzhiyun #define GLYPHPADBYTES 4 69*4882a593Smuzhiyun #endif 70*4882a593Smuzhiyun 71*4882a593Smuzhiyun /* size of buffer to use with GetImage, measured in bytes. There's obviously 72*4882a593Smuzhiyun * a trade-off between the amount of heap used and the number of times the 73*4882a593Smuzhiyun * ddx routine has to be called. 74*4882a593Smuzhiyun */ 75*4882a593Smuzhiyun #ifndef IMAGE_BUFSIZE 76*4882a593Smuzhiyun #define IMAGE_BUFSIZE (64*1024) 77*4882a593Smuzhiyun #endif 78*4882a593Smuzhiyun 79*4882a593Smuzhiyun /* pad scanline to a longword */ 80*4882a593Smuzhiyun #ifndef BITMAP_SCANLINE_UNIT 81*4882a593Smuzhiyun #define BITMAP_SCANLINE_UNIT 32 82*4882a593Smuzhiyun #endif 83*4882a593Smuzhiyun 84*4882a593Smuzhiyun #ifndef BITMAP_SCANLINE_PAD 85*4882a593Smuzhiyun #define BITMAP_SCANLINE_PAD 32 86*4882a593Smuzhiyun #define LOG2_BITMAP_PAD 5 87*4882a593Smuzhiyun #define LOG2_BYTES_PER_SCANLINE_PAD 2 88*4882a593Smuzhiyun #endif 89*4882a593Smuzhiyun 90*4882a593Smuzhiyun #include <X11/Xfuncproto.h> 91*4882a593Smuzhiyun /* 92*4882a593Smuzhiyun * This returns the number of padding units, for depth d and width w. 93*4882a593Smuzhiyun * For bitmaps this can be calculated with the macros above. 94*4882a593Smuzhiyun * Other depths require either grovelling over the formats field of the 95*4882a593Smuzhiyun * screenInfo or hardwired constants. 96*4882a593Smuzhiyun */ 97*4882a593Smuzhiyun 98*4882a593Smuzhiyun typedef struct _PaddingInfo { 99*4882a593Smuzhiyun int padRoundUp; /* pixels per pad unit - 1 */ 100*4882a593Smuzhiyun int padPixelsLog2; /* log 2 (pixels per pad unit) */ 101*4882a593Smuzhiyun int padBytesLog2; /* log 2 (bytes per pad unit) */ 102*4882a593Smuzhiyun int notPower2; /* bitsPerPixel not a power of 2 */ 103*4882a593Smuzhiyun int bytesPerPixel; /* only set when notPower2 is TRUE */ 104*4882a593Smuzhiyun int bitsPerPixel; /* bits per pixel */ 105*4882a593Smuzhiyun } PaddingInfo; 106*4882a593Smuzhiyun extern _X_EXPORT PaddingInfo PixmapWidthPaddingInfo[]; 107*4882a593Smuzhiyun 108*4882a593Smuzhiyun /* The only portable way to get the bpp from the depth is to look it up */ 109*4882a593Smuzhiyun #define BitsPerPixel(d) (PixmapWidthPaddingInfo[d].bitsPerPixel) 110*4882a593Smuzhiyun 111*4882a593Smuzhiyun #define PixmapWidthInPadUnits(w, d) \ 112*4882a593Smuzhiyun (PixmapWidthPaddingInfo[d].notPower2 ? \ 113*4882a593Smuzhiyun (((int)(w) * PixmapWidthPaddingInfo[d].bytesPerPixel + \ 114*4882a593Smuzhiyun PixmapWidthPaddingInfo[d].bytesPerPixel) >> \ 115*4882a593Smuzhiyun PixmapWidthPaddingInfo[d].padBytesLog2) : \ 116*4882a593Smuzhiyun ((int)((w) + PixmapWidthPaddingInfo[d].padRoundUp) >> \ 117*4882a593Smuzhiyun PixmapWidthPaddingInfo[d].padPixelsLog2)) 118*4882a593Smuzhiyun 119*4882a593Smuzhiyun /* 120*4882a593Smuzhiyun * Return the number of bytes to which a scanline of the given 121*4882a593Smuzhiyun * depth and width will be padded. 122*4882a593Smuzhiyun */ 123*4882a593Smuzhiyun #define PixmapBytePad(w, d) \ 124*4882a593Smuzhiyun (PixmapWidthInPadUnits(w, d) << PixmapWidthPaddingInfo[d].padBytesLog2) 125*4882a593Smuzhiyun 126*4882a593Smuzhiyun #define BitmapBytePad(w) \ 127*4882a593Smuzhiyun (((int)((w) + BITMAP_SCANLINE_PAD - 1) >> LOG2_BITMAP_PAD) << LOG2_BYTES_PER_SCANLINE_PAD) 128*4882a593Smuzhiyun 129*4882a593Smuzhiyun #endif /* SERVERMD_H */ 130