x11perf.h revision 264fa531
1264fa531Smrg/* $Xorg: x11perf.h,v 1.3 2000/08/17 19:54:10 cpqbld Exp $ */ 2264fa531Smrg/***************************************************************************** 3264fa531SmrgCopyright 1988, 1989 by Digital Equipment Corporation, Maynard, Massachusetts. 4264fa531Smrg 5264fa531Smrg All Rights Reserved 6264fa531Smrg 7264fa531SmrgPermission to use, copy, modify, and distribute this software and its 8264fa531Smrgdocumentation for any purpose and without fee is hereby granted, 9264fa531Smrgprovided that the above copyright notice appear in all copies and that 10264fa531Smrgboth that copyright notice and this permission notice appear in 11264fa531Smrgsupporting documentation, and that the name of Digital not be 12264fa531Smrgused in advertising or publicity pertaining to distribution of the 13264fa531Smrgsoftware without specific, written prior permission. 14264fa531Smrg 15264fa531SmrgDIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 16264fa531SmrgALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL 17264fa531SmrgDIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR 18264fa531SmrgANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 19264fa531SmrgWHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 20264fa531SmrgARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 21264fa531SmrgSOFTWARE. 22264fa531Smrg 23264fa531Smrg******************************************************************************/ 24264fa531Smrg/* $XFree86: xc/programs/x11perf/x11perf.h,v 3.4 2001/07/25 15:05:16 dawes Exp $ */ 25264fa531Smrg 26264fa531Smrg#if HAVE_CONFIG_H 27264fa531Smrg#include "config.h" 28264fa531Smrg#endif 29264fa531Smrg 30264fa531Smrg#ifndef VMS 31264fa531Smrg#include <X11/Xlib.h> 32264fa531Smrg#include <stdlib.h> 33264fa531Smrg#include <X11/Xutil.h> 34264fa531Smrg#else 35264fa531Smrg#include <decw$include/Xlib.h> 36264fa531Smrg#include <decw$include/Xutil.h> 37264fa531Smrg#endif 38264fa531Smrg#if defined(XlibSpecificationRelease) && XlibSpecificationRelease >= 5 39264fa531Smrg#include <X11/Xfuncs.h> 40264fa531Smrg#endif 41264fa531Smrg#include <stddef.h> 42264fa531Smrg 43264fa531Smrg#define POLY 1000 /* # (small) items in poly calls */ 44264fa531Smrg#define MAXROWS 40 /* Max rows of items in poly calls */ 45264fa531Smrg#define MAXCOLS 25 /* Max columns of items */ 46264fa531Smrg 47264fa531Smrg#define WIDTH 600 /* Size of large window to work within */ 48264fa531Smrg#define HEIGHT 600 49264fa531Smrg 50264fa531Smrg#define CHILDSIZE 8 /* Size of children on windowing tests */ 51264fa531Smrg#define CHILDSPACE 4 /* Space between children */ 52264fa531Smrg 53264fa531Smrg#define BigTile ((char *)2) /* Big tile/stipple */ 54264fa531Smrg#define OddTile ((char *)1) /* Odd sized tile/stipple */ 55264fa531Smrg 56264fa531Smrg 57264fa531Smrgtypedef unsigned char Version; 58264fa531Smrg 59264fa531Smrg#define VERSION1_2 ((Version)(1 << 0)) 60264fa531Smrg#define VERSION1_3 ((Version)(1 << 1)) 61264fa531Smrg#define VERSION1_4 ((Version)(1 << 2)) 62264fa531Smrg#define VERSION1_5 ((Version)(1 << 3)) 63264fa531Smrg#define V1_2ONLY VERSION1_2 64264fa531Smrg#define V1_2FEATURE (VERSION1_2 | VERSION1_3 | VERSION1_4 | VERSION1_5) 65264fa531Smrg#define V1_3FEATURE (VERSION1_3 | VERSION1_4 | VERSION1_5) 66264fa531Smrg#define V1_4FEATURE (VERSION1_4 | VERSION1_5) 67264fa531Smrg#define V1_5FEATURE (VERSION1_5) 68264fa531Smrg 69264fa531Smrgtypedef struct _Parms { 70264fa531Smrg /* Required fields */ 71264fa531Smrg int objects; /* Number of objects to process in one X call */ 72264fa531Smrg 73264fa531Smrg /* Optional fields. (Wouldn't object-oriented programming be nice ?) */ 74264fa531Smrg int special; /* Usually size of objects to paint */ 75264fa531Smrg char *font, *bfont; 76264fa531Smrg int fillStyle; /* Solid, transparent stipple, opaque stipple, tile */ 77264fa531Smrg} ParmRec, *Parms; 78264fa531Smrg 79264fa531Smrgtypedef struct _XParms { 80264fa531Smrg Display *d; 81264fa531Smrg Window w; 82264fa531Smrg Pixmap p; 83264fa531Smrg GC fggc; 84264fa531Smrg GC bggc; 85264fa531Smrg GC ddfggc; 86264fa531Smrg GC ddbggc; 87264fa531Smrg unsigned long foreground; 88264fa531Smrg unsigned long background; 89264fa531Smrg unsigned long ddbackground; 90264fa531Smrg XVisualInfo vinfo; 91264fa531Smrg Bool pack; 92264fa531Smrg Version version; 93264fa531Smrg Bool save_under; 94264fa531Smrg int backing_store; 95264fa531Smrg unsigned long planemask; 96264fa531Smrg Colormap cmap; 97264fa531Smrg} XParmRec, *XParms; 98264fa531Smrg 99264fa531Smrgtypedef int (*InitProc)(XParms xp, Parms p, int reps); 100264fa531Smrgtypedef void (*Proc)(XParms xp, Parms p, int reps); 101264fa531Smrgtypedef void (*CleanupProc)(XParms xp, Parms p); 102264fa531Smrg 103264fa531Smrgtypedef enum { 104264fa531Smrg WINDOW, /* Windowing test, rop, planemask have no affect */ 105264fa531Smrg ROP, /* Graphics test, rop, planemask has some affect */ 106264fa531Smrg PLANEMASK, /* Graphics test, rop no affect, planemask some affect */ 107264fa531Smrg NONROP /* Graphics or overhead test, rop has no affect */ 108264fa531Smrg} TestType; 109264fa531Smrg 110264fa531Smrgtypedef struct _Test { 111264fa531Smrg char *option; /* Name to use in prompt line */ 112264fa531Smrg char *label; /* Fuller description of test */ 113264fa531Smrg char *label14; /* Labels that are different in Version 1.4 */ 114264fa531Smrg InitProc init; /* Initialization procedure */ 115264fa531Smrg Proc proc; /* Timed benchmark procedure */ 116264fa531Smrg CleanupProc passCleanup;/* Cleanup between repetitions of same test */ 117264fa531Smrg CleanupProc cleanup; /* Cleanup after test */ 118264fa531Smrg Version versions; /* Test in 1.2 only, 1.3 only, or both */ 119264fa531Smrg TestType testType; /* Windowing, graphics rop, graphics non-rop */ 120264fa531Smrg int clips; /* Number of obscuring windows to force clipping*/ 121264fa531Smrg ParmRec parms; /* Parameters passed to test procedures */ 122264fa531Smrg} Test; 123264fa531Smrg 124264fa531Smrgextern void NullProc(XParms xp, Parms p); 125264fa531Smrgextern int NullInitProc(XParms xp, Parms p, int reps); 126264fa531Smrg 127264fa531Smrgextern Test test[]; 128264fa531Smrg 129264fa531Smrgextern int abortTest; 130264fa531Smrg 131264fa531Smrgextern void AbortTest (void); 132264fa531Smrg 133264fa531Smrg#define CheckAbort() if (abortTest) AbortTest () 134264fa531Smrg#define ForEachTest(x) for (x = 0; test[x].option != NULL; x++) 135264fa531Smrg 136264fa531Smrg 137264fa531Smrg/* do_arcs.c */ 138264fa531Smrgextern int InitCircles ( XParms xp, Parms p, int reps ); 139264fa531Smrgextern int InitPartCircles ( XParms xp, Parms p, int reps ); 140264fa531Smrgextern int InitChordPartCircles ( XParms xp, Parms p, int reps ); 141264fa531Smrgextern int InitSlicePartCircles ( XParms xp, Parms p, int reps ); 142264fa531Smrgextern int InitWideCircles ( XParms xp, Parms p, int reps ); 143264fa531Smrgextern int InitPartWideCircles ( XParms xp, Parms p, int reps ); 144264fa531Smrgextern int InitDashedCircles ( XParms xp, Parms p, int reps ); 145264fa531Smrgextern int InitWideDashedCircles ( XParms xp, Parms p, int reps ); 146264fa531Smrgextern int InitDoubleDashedCircles ( XParms xp, Parms p, int reps ); 147264fa531Smrgextern int InitWideDoubleDashedCircles ( XParms xp, Parms p, int reps ); 148264fa531Smrgextern int InitEllipses ( XParms xp, Parms p, int reps ); 149264fa531Smrgextern int InitPartEllipses ( XParms xp, Parms p, int reps ); 150264fa531Smrgextern int InitChordPartEllipses ( XParms xp, Parms p, int reps ); 151264fa531Smrgextern int InitSlicePartEllipses ( XParms xp, Parms p, int reps ); 152264fa531Smrgextern int InitWideEllipses ( XParms xp, Parms p, int reps ); 153264fa531Smrgextern int InitPartWideEllipses ( XParms xp, Parms p, int reps ); 154264fa531Smrgextern int InitDashedEllipses ( XParms xp, Parms p, int reps ); 155264fa531Smrgextern int InitWideDashedEllipses ( XParms xp, Parms p, int reps ); 156264fa531Smrgextern int InitDoubleDashedEllipses ( XParms xp, Parms p, int reps ); 157264fa531Smrgextern int InitWideDoubleDashedEllipses ( XParms xp, Parms p, int reps ); 158264fa531Smrgextern void DoArcs ( XParms xp, Parms p, int reps ); 159264fa531Smrgextern void DoFilledArcs ( XParms xp, Parms p, int reps ); 160264fa531Smrgextern void EndArcs ( XParms xp, Parms p ); 161264fa531Smrg 162264fa531Smrg/* do_blt.c */ 163264fa531Smrgextern int InitScroll ( XParms xp, Parms p, int reps ); 164264fa531Smrgextern void DoScroll ( XParms xp, Parms p, int reps ); 165264fa531Smrgextern void MidScroll ( XParms xp, Parms p ); 166264fa531Smrgextern void EndScroll ( XParms xp, Parms p ); 167264fa531Smrgextern int InitCopyWin ( XParms xp, Parms p, int reps ); 168264fa531Smrgextern int InitCopyPix ( XParms xp, Parms p, int reps ); 169264fa531Smrgextern int InitGetImage ( XParms xp, Parms p, int reps ); 170264fa531Smrgextern int InitPutImage ( XParms xp, Parms p, int reps ); 171264fa531Smrgextern void DoCopyWinWin ( XParms xp, Parms p, int reps ); 172264fa531Smrgextern void DoCopyPixWin ( XParms xp, Parms p, int reps ); 173264fa531Smrgextern void DoCopyWinPix ( XParms xp, Parms p, int reps ); 174264fa531Smrgextern void DoCopyPixPix ( XParms xp, Parms p, int reps ); 175264fa531Smrgextern void DoGetImage ( XParms xp, Parms p, int reps ); 176264fa531Smrgextern void DoPutImage ( XParms xp, Parms p, int reps ); 177264fa531Smrg#ifdef MITSHM 178264fa531Smrgextern int InitShmPutImage ( XParms xp, Parms p, int reps ); 179264fa531Smrgextern void DoShmPutImage ( XParms xp, Parms p, int reps ); 180264fa531Smrgextern void EndShmPutImage ( XParms xp, Parms p ); 181264fa531Smrg#endif 182264fa531Smrgextern void MidCopyPix ( XParms xp, Parms p ); 183264fa531Smrgextern void EndCopyWin ( XParms xp, Parms p ); 184264fa531Smrgextern void EndCopyPix ( XParms xp, Parms p ); 185264fa531Smrgextern void EndGetImage ( XParms xp, Parms p ); 186264fa531Smrgextern int InitCopyPlane ( XParms xp, Parms p, int reps ); 187264fa531Smrgextern void DoCopyPlane ( XParms xp, Parms p, int reps ); 188264fa531Smrg 189264fa531Smrg/* do_complex.c */ 190264fa531Smrgextern int InitComplexPoly ( XParms xp, Parms p, int reps ); 191264fa531Smrgextern void DoComplexPoly ( XParms xp, Parms p, int reps ); 192264fa531Smrgextern void EndComplexPoly ( XParms xp, Parms p ); 193264fa531Smrgextern int InitGeneralPoly ( XParms xp, Parms p, int reps ); 194264fa531Smrgextern void DoGeneralPoly ( XParms xp, Parms p, int reps ); 195264fa531Smrg 196264fa531Smrg/* do_dots.c */ 197264fa531Smrgextern int InitDots ( XParms xp, Parms p, int reps ); 198264fa531Smrgextern void DoDots ( XParms xp, Parms p, int reps ); 199264fa531Smrgextern void EndDots ( XParms xp, Parms p ); 200264fa531Smrg 201264fa531Smrg/* do_lines.c */ 202264fa531Smrgextern int InitLines ( XParms xp, Parms p, int reps ); 203264fa531Smrgextern int InitWideLines ( XParms xp, Parms p, int reps ); 204264fa531Smrgextern int InitDashedLines ( XParms xp, Parms p, int reps ); 205264fa531Smrgextern int InitWideDashedLines ( XParms xp, Parms p, int reps ); 206264fa531Smrgextern int InitDoubleDashedLines ( XParms xp, Parms p, int reps ); 207264fa531Smrgextern int InitWideDoubleDashedLines ( XParms xp, Parms p, int reps ); 208264fa531Smrgextern void DoLines ( XParms xp, Parms p, int reps ); 209264fa531Smrgextern void EndLines ( XParms xp, Parms p ); 210264fa531Smrg 211264fa531Smrg/* do_movewin.c */ 212264fa531Smrgextern int InitMoveWindows ( XParms xp, Parms p, int reps ); 213264fa531Smrgextern void DoMoveWindows ( XParms xp, Parms p, int reps ); 214264fa531Smrgextern void EndMoveWindows ( XParms xp, Parms p ); 215264fa531Smrgextern void DoResizeWindows ( XParms xp, Parms p, int reps ); 216264fa531Smrgextern int InitCircWindows ( XParms xp, Parms p, int reps ); 217264fa531Smrgextern void DoCircWindows ( XParms xp, Parms p, int reps ); 218264fa531Smrgextern void EndCircWindows ( XParms xp, Parms p ); 219264fa531Smrgextern int InitMoveTree ( XParms xp, Parms p, int reps ); 220264fa531Smrgextern void DoMoveTree ( XParms xp, Parms p, int reps ); 221264fa531Smrgextern void EndMoveTree ( XParms xp, Parms p ); 222264fa531Smrg 223264fa531Smrg/* do_rects.c */ 224264fa531Smrgextern int InitRectangles ( XParms xp, Parms p, int reps ); 225264fa531Smrgextern void DoRectangles ( XParms xp, Parms p, int reps ); 226264fa531Smrgextern void DoOutlineRectangles ( XParms xp, Parms p, int reps ); 227264fa531Smrgextern void EndRectangles ( XParms xp, Parms p ); 228264fa531Smrg 229264fa531Smrg/* do_segs.c */ 230264fa531Smrgextern int InitSegments ( XParms xp, Parms p, int reps ); 231264fa531Smrgextern int InitDashedSegments ( XParms xp, Parms p, int reps ); 232264fa531Smrgextern int InitDoubleDashedSegments ( XParms xp, Parms p, int reps ); 233264fa531Smrgextern int InitHorizSegments ( XParms xp, Parms p, int reps ); 234264fa531Smrgextern int InitWideHorizSegments ( XParms xp, Parms p, int reps ); 235264fa531Smrgextern int InitVertSegments ( XParms xp, Parms p, int reps ); 236264fa531Smrgextern int InitWideVertSegments ( XParms xp, Parms p, int reps ); 237264fa531Smrgextern void DoSegments ( XParms xp, Parms p, int reps ); 238264fa531Smrgextern void EndSegments ( XParms xp, Parms p ); 239264fa531Smrg 240264fa531Smrg/* do_simple.c */ 241264fa531Smrgextern void DoNoOp ( XParms xp, Parms p, int reps ); 242264fa531Smrgextern void DoGetAtom ( XParms xp, Parms p, int reps ); 243264fa531Smrgextern void DoQueryPointer ( XParms xp, Parms p, int reps ); 244264fa531Smrgextern int InitGetProperty ( XParms xp, Parms p, int reps ); 245264fa531Smrgextern void DoGetProperty ( XParms xp, Parms p, int reps ); 246264fa531Smrg 247264fa531Smrg/* do_text.c */ 248264fa531Smrgextern int InitText ( XParms xp, Parms p, int reps ); 249264fa531Smrgextern int InitText16 ( XParms xp, Parms p, int reps ); 250264fa531Smrgextern void DoText ( XParms xp, Parms p, int reps ); 251264fa531Smrgextern void DoText16 ( XParms xp, Parms p, int reps ); 252264fa531Smrgextern void DoPolyText ( XParms xp, Parms p, int reps ); 253264fa531Smrgextern void DoPolyText16 ( XParms xp, Parms p, int reps ); 254264fa531Smrgextern void DoImageText ( XParms xp, Parms p, int reps ); 255264fa531Smrgextern void DoImageText16 ( XParms xp, Parms p, int reps ); 256264fa531Smrgextern void ClearTextWin ( XParms xp, Parms p ); 257264fa531Smrgextern void EndText ( XParms xp, Parms p ); 258264fa531Smrgextern void EndText16 ( XParms xp, Parms p ); 259264fa531Smrg#ifdef XFT 260264fa531Smrgextern int InitAAText (XParms xp, Parms p, int reps ); 261264fa531Smrgextern void DoAAText (XParms xp, Parms p, int reps ); 262264fa531Smrgextern void EndAAText ( XParms xp, Parms p ); 263264fa531Smrg#endif 264264fa531Smrg 265264fa531Smrg/* do_traps.c */ 266264fa531Smrgextern int InitTrapezoids ( XParms xp, Parms p, int reps ); 267264fa531Smrgextern void DoTrapezoids ( XParms xp, Parms p, int reps ); 268264fa531Smrgextern void EndTrapezoids ( XParms xp, Parms p ); 269264fa531Smrg#ifdef XRENDER 270264fa531Smrgextern int InitFixedTraps ( XParms xp, Parms p, int reps ); 271264fa531Smrgextern void DoFixedTraps ( XParms xp, Parms p, int reps ); 272264fa531Smrgextern void EndFixedTraps ( XParms xp, Parms p ); 273264fa531Smrgextern int InitFixedTrapezoids ( XParms xp, Parms p, int reps ); 274264fa531Smrgextern void DoFixedTrapezoids ( XParms xp, Parms p, int reps ); 275264fa531Smrgextern void EndFixedTrapezoids ( XParms xp, Parms p ); 276264fa531Smrg#endif 277264fa531Smrg 278264fa531Smrg/* do_tris.c */ 279264fa531Smrgextern int InitTriangles ( XParms xp, Parms p, int reps ); 280264fa531Smrgextern void DoTriangles ( XParms xp, Parms p, int reps ); 281264fa531Smrgextern void EndTriangles ( XParms xp, Parms p ); 282264fa531Smrg 283264fa531Smrg/* do_valgc.c */ 284264fa531Smrgextern int InitGC ( XParms xp, Parms p, int reps ); 285264fa531Smrgextern void DoChangeGC ( XParms xp, Parms p, int reps ); 286264fa531Smrgextern void EndGC ( XParms xp, Parms p ); 287264fa531Smrg 288264fa531Smrg/* do_windows.c */ 289264fa531Smrgextern int CreateParents ( XParms xp, Parms p, int reps ); 290264fa531Smrgextern void MapParents ( XParms xp, Parms p, int reps ); 291264fa531Smrgextern void MapParentsCleanup ( XParms xp, Parms p ); 292264fa531Smrgextern int InitCreate ( XParms xp, Parms p, int reps ); 293264fa531Smrgextern void CreateChildren ( XParms xp, Parms p, int reps ); 294264fa531Smrgextern void DestroyChildren ( XParms xp, Parms p ); 295264fa531Smrgextern void EndCreate ( XParms xp, Parms p ); 296264fa531Smrgextern int InitMap ( XParms xp, Parms p, int reps ); 297264fa531Smrgextern void UnmapParents ( XParms xp, Parms p, int reps ); 298264fa531Smrgextern void UnmapParentsCleanup ( XParms xp, Parms p); 299264fa531Smrgextern int InitDestroy ( XParms xp, Parms p, int reps ); 300264fa531Smrgextern void DestroyParents ( XParms xp, Parms p, int reps ); 301264fa531Smrgextern void RenewParents ( XParms xp, Parms p ); 302264fa531Smrgextern int InitPopups ( XParms xp, Parms p, int reps ); 303264fa531Smrgextern void DoPopUps ( XParms xp, Parms p, int reps ); 304264fa531Smrgextern void EndPopups ( XParms xp, Parms p ); 305264fa531Smrg 306264fa531Smrg 307264fa531Smrg/***************************************************************************** 308264fa531Smrg 309264fa531SmrgAbout x11perf: 310264fa531Smrg 311264fa531SmrgMany graphics benchmarks assume that the graphics device is used to display the 312264fa531Smrgoutput of a single fancy graphics application, and that the user gets his work 313264fa531Smrgdone on some other device, like a terminal. Such benchmarks usually measure 314264fa531Smrgdrawing speed for lines, polygons, text, etc. 315264fa531Smrg 316264fa531SmrgSince workstations are not used as standalone graphics engines, but as 317264fa531Smrgsuper-terminals, x11perf measures window management performance as well as 318264fa531Smrgtraditional graphics performace. x11perf includes benchmarks for the time it 319264fa531Smrgtakes to create and map windows (as when you start up an application); to map a 320264fa531Smrgpre-existing set of windows onto the screen (as when you deiconify an 321264fa531Smrgapplication or pop up a menu); and to rearrange windows (as when you slosh 322264fa531Smrgwindows to and fro trying to find the one you want). 323264fa531Smrg 324264fa531Smrgx11perf also measures graphics performance for operations not normally used in 325264fa531Smrgstandalone graphics displays, but are nonetheless used frequently by X 326264fa531Smrgapplications. Such operations include CopyPlane (used by the PostScript 327264fa531Smrgpreviewer), scrolling (used in text windows), and various stipples and tiles 328264fa531Smrg(used for CAD and half-toning, respectively). 329264fa531Smrg 330264fa531Smrgx11perf DOES NOT attempt to whittle down measurements to a single ``HeXStones'' 331264fa531Smrgnumber. We consider such numbers to be uninformative at best and misleading at 332264fa531Smrgworst. x11perf should be used to analyze particular strengths and weaknesses 333264fa531Smrgof servers, and is most useful when used by a server writer who wants to 334264fa531Smrganalyze and improve a server. 335264fa531Smrg 336264fa531SmrgFor repeatable results, x11perf should be run using a local connection on a 337264fa531Smrgfreshly-started server. The default configuration runs each test 5 times, in 338264fa531Smrgorder to see if each trial takes approximately the same amount of time. 339264fa531SmrgStrange glitches should be examined; if non-repeatable I chalk them up to 340264fa531Smrgdaemons and network traffic. Each trial is run for 5 seconds, in order to 341264fa531Smrgreduce random time differences. The number of objects processed per second is 342264fa531Smrgdisplayed to 3 significant digits, but you'll be lucky on most UNIX system if 343264fa531Smrgthe numbers are actually consistent to 2 digits. 344264fa531Smrg 345264fa531SmrgThe current program is mostly the responsibility of Joel McCormack. It is 346264fa531Smrgbased upon the x11perf developed by Phil Karlton, Susan Angebranndt, and Chris 347264fa531SmrgKent, who wanted to assess performance differences between various servers. 348264fa531SmrgMary Walker, Todd Newman, and I added several tests in order to write and tune 349264fa531Smrgthe pmax (DECStation 3100) servers. For a general release to the world, I've 350264fa531Smrgbasically rewritten x11perf to ease making comparisons between widely varying 351264fa531Smrgmachines, to cover most important X functionality (the notable exception being 352264fa531Smrgwide lines), and to exercise graphics operations in as many different 353264fa531Smrgorientations and alignments as possible. 354264fa531Smrg 355264fa531Smrg******************************************************************************/ 356