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vt1200/xie/xc/programs/xieperf/events.c
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arti d8d54bb990 feat(xie): a client-chosen XIE image is displayed on the VT1200 
The XIE path now runs end to end: XieCreateImage -> XieCreatePhoto ->
XiePutTile -> XieExport(photomap -> depth-1 pixmap) -> XCopyArea(pixmap ->
window), and the client's tile appears on screen at the client's own window
position, pixel-exact.

TWO FAULTS BEHIND THE LONG DEAD END

1. Device model (harness/mame/vt1200.cpp, opt-in VT1200_ACCEL=1).  The
   accelerator's output port 0x5600200 returns the pixel stream the firmware
   pushed into the FIFO -- the firmware then stores it into the drawable itself
   (file 0x125528: MOVE *B6,*B1 ; ADDK 0x10,B1).  The FIFO read pointer was
   never reset between transfers, so consecutive exports read stale words and
   the same fill produced 759 then 516 set pixels.  Reset m_fifo_in/out on the
   data-register write; the export is now deterministic.

2. Measurement, not the device.
   - dwt/screenshot.py without --real reads 1024x1024 at a 128-byte row stride,
     but the VR319 default programs 1280x1024 at a 2048-bit (256-byte) pitch.
     That is the "shifted" picture; --real is the correct read.
   - The earlier "0 differing bytes over 128 KiB" VRAM comparison stepped peek
     by 1024 *bit* addresses, so it scanned rows 0..63 only -- never the window
     at rows 200..263.  Over the real raster the white/black diff is 576 bytes
     spanning exactly those rows.
   - New instrument: decclient does a server-side XGetImage readback of the
     pixmap and window and counts set pixels.  That separated "the server never
     drew it" from "the framebuffer view is wrong".

EVIDENCE (reproduced twice, the second time from a fresh machine)

  no export vs 0xFF : 4096 / 4096 pixels differ
  no export vs 0x00 :    0 / 4096   (the window background is black)
  0xFF      vs 0x00 : 4096 / 4096
  0xAA      vs 0x0F : 2048 / 4096   (the two stripe phases)

Tile byte 0xAA reproduces as 1-pixel vertical stripes, 0x0F as 4-pixel, with
no shear -- so the placement is right and the pixels are the client's.

Contents: xie/ holds DEC XIE 2.3 headers, 84 man pages and complete
client+server source; a libXie.a and decclient built from DEC's own code; the
XIE probes; and evidence/ with every measurement, including explicit
retractions of the earlier wrong readings (VRAM_IDENTICAL_FOR_BOTH_FILLS and
friends).  xie/evidence/XIE_IMAGE_DISPLAYED.md is the report; frames are in
xie/evidence/png/.

The accelerator model stays opt-in: it answers the status poll and relays the
pixel stream, but performs no compositing, so it is a stand-in and the verified
default configuration is unchanged (a no-env run still parks in the level-0
diagnostics menu at PC=3FDCE400).
2026-11-01 23:22:25 +02:00

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/* $XConsortium: events.c,v 1.12 95/04/05 19:59:08 kaleb Exp $ */
/**** module events.c ****/
/******************************************************************************
Copyright (c) 1993, 1994 X Consortium
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of the X Consortium shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from the X Consortium.
NOTICE
This software is being provided by AGE Logic, Inc. under the
following license. By obtaining, using and/or copying this software,
you agree that you have read, understood, and will comply with these
terms and conditions:
Permission to use, copy, modify, distribute and sell this
software and its documentation for any purpose and without
fee or royalty and to grant others any or all rights granted
herein is hereby granted, provided that you agree to comply
with the following copyright notice and statements, including
the disclaimer, and that the same appears on all copies and
derivative works of the software and documentation you make.
"Copyright 1993, 1994 by AGE Logic, Inc."
THIS SOFTWARE IS PROVIDED "AS IS". AGE LOGIC MAKES NO
REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. By way of
example, but not limitation, AGE LOGIC MAKE NO
REPRESENTATIONS OR WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE OR THAT THE SOFTWARE DOES NOT
INFRINGE THIRD-PARTY PROPRIETARY RIGHTS. AGE LOGIC
SHALL BEAR NO LIABILITY FOR ANY USE OF THIS SOFTWARE. IN NO
EVENT SHALL EITHER PARTY BE LIABLE FOR ANY INDIRECT,
INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOSS
OF PROFITS, REVENUE, DATA OR USE, INCURRED BY EITHER PARTY OR
ANY THIRD PARTY, WHETHER IN AN ACTION IN CONTRACT OR TORT OR
BASED ON A WARRANTY, EVEN IF AGE LOGIC LICENSEES
HEREUNDER HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.
The name of AGE Logic, Inc. may not be used in
advertising or publicity pertaining to this software without
specific, written prior permission from AGE Logic.
Title to this software shall at all times remain with AGE
Logic, Inc.
*****************************************************************************
events.c -- event tests and XIE event routines
Syd Logan -- AGE Logic, Inc.
*****************************************************************************/
#ifdef WIN32
#define _WILLWINSOCK_
#endif
#include <stdio.h>
#include <ctype.h>
#include <X11/Xpoll.h>
#include "xieperf.h"
static XieExtensionInfo *xieInfo=NULL;
static int timeout = 60; /* in seconds */
static XiePhotomap XIEPhotomap;
static XiePhotomap XIEPhotomap2;
static XieLut XIELut;
static XiePhotoElement *flograph;
static XiePhotoflo flo;
static int flo_elements;
static char *data;
static int size;
extern Bool dontClear;
extern Bool showErrors;
extern Window drawableWindow;
/* general event stuff */
int
GetTimeout()
{
return( timeout );
}
int
SetTimeout( time )
int time;
{
timeout = time;
}
InitEventInfo(display,info)
Display *display;
XieExtensionInfo *info;
{
xieInfo = info;
}
GetExtensionInfo( info )
XieExtensionInfo **info;
{
*info = xieInfo;
}
Bool
event_check(display,event,arg)
Display *display;
XEvent *event;
char *arg;
{
int xie_event;
if (xieInfo == NULL)
return(False);
if ( event == ( XEvent * ) NULL )
return( False );
xie_event = event->type - xieInfo->first_event;
if (xie_event <= 0)
return(False);
if (xie_event > xieEvnNoPhotofloDone)
return(False);
return(True);
}
int
WaitForXIEEvent( xp, which, flo_id, tag, verbose )
XParms xp;
int which;
XiePhotoflo flo_id;
XiePhototag tag;
Bool verbose;
{
int Xsocket;
XEvent event;
XieExportAvailableEvent *ExportAvailable =
(XieExportAvailableEvent *) &event;
XiePhotofloDoneEvent *PhotofloDone =
(XiePhotofloDoneEvent *) &event;
XieColorAllocEvent *ColorAlloc =
(XieColorAllocEvent *) &event;
XieDecodeNotifyEvent *DecodeNotify =
(XieDecodeNotifyEvent *) &event;
XieImportObscuredEvent *ImportObscured =
(XieImportObscuredEvent *) &event;
int retval, xie_event;
time_t endtime, curtime, delta;
struct timeval tv;
Bool done;
fd_set rd;
retval = 1;
done = False;
/* set up for the select */
Xsocket = ConnectionNumber(xp->d);
endtime = time( ( time_t * ) NULL ) + timeout;
while ( done == False )
{
/* see if there is anything for us in the event queue... */
if ( XCheckTypedEvent( xp->d, xieInfo->first_event + which,
&event ) == False )
{
curtime = time( ( time_t * ) NULL );
delta = endtime - curtime;
if ( delta <= 0 )
{
retval = 0;
fprintf( stderr, "Timed out on receiving XIE event\n" );
fflush( stderr );
done = True;
continue;
}
tv.tv_sec = delta;
tv.tv_usec = 0L;
XFlush( xp->d );
FD_ZERO(&rd);
FD_SET(Xsocket, &rd);
Select( Xsocket + 1, &rd, NULL, NULL, &tv );
continue;
}
xie_event = event.type - xieInfo->first_event;
switch( xie_event )
{
case xieEvnNoExportAvailable:
if ( ExportAvailable->flo_id == flo_id &&
ExportAvailable->src == tag )
{
if ( verbose == True )
fprintf( stderr, "ExportAvailable event received\n" );
retval = ExportAvailable->data[ 0 ];
done = True;
}
break;
case xieEvnNoPhotofloDone:
if ( PhotofloDone->flo_id == flo_id )
{
if ( verbose == True )
fprintf( stderr, "PhotofloDone event received\n" );
done = True;
}
break;
case xieEvnNoColorAlloc:
if ( ColorAlloc->flo_id == flo_id )
{
if ( verbose == True )
fprintf( stderr, "ColorAlloc event received\n" );
done = True;
}
break;
case xieEvnNoDecodeNotify:
if ( DecodeNotify->flo_id == flo_id )
{
if ( verbose == True )
fprintf( stderr, "DecodeNotify event received\n" );
done = True;
}
break;
case xieEvnNoImportObscured:
if ( ImportObscured->flo_id == flo_id )
{
if ( verbose == True )
fprintf( stderr, "ImportObscured event received\n" );
done = True;
}
break;
}
}
return( retval );
}
/* event tests */
int
XIEEventErrorHandler( d, ev )
Display *d;
XErrorEvent *ev;
{
if ( showErrors ==True )
{
fprintf( stderr, "X Event received: major %d minor %d\n",
ev->request_code, ev->minor_code );
fflush( stderr );
}
return( 0 );
}
int
InitEvents( xp, p, reps )
XParms xp;
Parms p;
int reps;
{
int which;
which = ( ( EventParms * ) p->ts )->event;
XSetErrorHandler( XIEEventErrorHandler );
switch( which )
{
case xieEvnNoExportAvailable:
reps = InitExportAvailableEvent( xp, p, reps );
break;
case xieEvnNoPhotofloDone:
reps = InitPhotofloDoneEvent( xp, p, reps );
break;
case xieEvnNoColorAlloc:
reps = InitColorAllocEvent( xp, p, reps );
break;
case xieEvnNoDecodeNotify:
reps = InitDecodeNotifyEvent( xp, p, reps );
break;
case xieEvnNoImportObscured:
reps = InitImportObscuredEvent( xp, p, reps );
break;
default:
reps = 0;
break;
}
if ( !reps )
XSetErrorHandler( None );
return( reps );
}
int
InitPhotofloDoneEvent( xp, p, reps )
XParms xp;
Parms p;
int reps;
{
XIEPhotomap = ( XiePhotomap ) NULL;
flo = ( XiePhotoflo ) NULL;
flograph = ( XiePhotoElement * ) NULL;
if ( ( XIEPhotomap = GetXIEDitheredPhotomap( xp, p, 1,
(1 << xp->vinfo.depth ) ) ) == ( XiePhotomap ) NULL )
{
reps = 0;
}
else
{
flo_elements = 2;
flograph = XieAllocatePhotofloGraph(flo_elements);
if ( flograph == ( XiePhotoElement * ) NULL )
{
fprintf( stderr, "XieAllocatePhotofloGraph failed\n" );
reps = 0;
}
else
{
XieFloImportPhotomap(&flograph[0], XIEPhotomap,
False);
XieFloExportDrawable(&flograph[1],
1, /* source phototag number */
xp->w,
xp->fggc,
0,
0
);
flo = XieCreatePhotoflo( xp->d, flograph, flo_elements )
;
}
}
if ( !reps )
{
FreePhotofloDoneEventStuff( xp, p );
}
return( reps );
}
int
InitColorAllocEvent( xp, p, reps )
XParms xp;
Parms p;
int reps;
{
CvtToIndexParms cticfg;
EventParms *evcfg;
int retval;
/* the idea is to use the convert to index init and end
functions, but use our test function. These are located
in cvttoindex.c. What we use in this files are wrappers
to those routines. Probably should do this for other test
code in this file too ( some of them are close or identical
to already written code )... */
/* initialize a convert to index parameter struct */
cticfg.dither = xieValDitherDefault;
cticfg.useDefaultCmap = False;
cticfg.flo_notify = True;
cticfg.addCvtFromIndex = False;
/* save the current one */
evcfg = ( EventParms * )p->ts;
/* set the new one */
p->ts = ( XPointer ) &cticfg;
/* call the convert to index test init function */
retval = InitConvertToIndex( xp, p, reps );
/* restore the original test configuration */
p->ts = ( XPointer )evcfg;
return( retval );
}
int
InitDecodeNotifyEvent( xp, p, reps )
XParms xp;
Parms p;
int reps;
{
XIEimage *image;
XieDecodeUncompressedSingleParam *decode_params=NULL;
XieEncodeTechnique encode_tech=xieValEncodeServerChoice;
char *encode_params=NULL;
XieLTriplet width, height, levels;
XIEPhotomap = ( XiePhotomap ) NULL;
XIEPhotomap2 = ( XiePhotomap ) NULL;
flograph = ( XiePhotoElement * ) NULL;
flo = ( XiePhotoflo ) NULL;
image = p->finfo.image1;
if ( !GetImageData( xp, p, 1 ) )
reps = 0;
else
{
if ( !image )
reps = 0;
else
{
size = image->fsize;
width[ 0 ] = image->width[ 0 ];
height[ 0 ] = image->height[ 0 ];
levels[ 0 ] = image->levels[ 0 ];
}
}
if ( reps )
{
XIEPhotomap = XieCreatePhotomap(xp->d);
XIEPhotomap2 = XieCreatePhotomap(xp->d);
decode_params = XieTecDecodeUncompressedSingle(
image->fill_order,
image->pixel_order,
image->pixel_stride[ 0 ],
image->left_pad[ 0 ],
image->scanline_pad[ 0 ]
);
flo_elements = 2;
flograph = XieAllocatePhotofloGraph(flo_elements);
if ( flograph == ( XiePhotoElement * ) NULL )
{
reps = 0;
}
}
if ( reps )
{
XieFloImportClientPhoto(&flograph[0],
image->bandclass,
width, height, levels,
True,
image->decode, (char *)decode_params
);
XieFloExportPhotomap(&flograph[1],
1, /* source phototag number */
XIEPhotomap2,
encode_tech,
encode_params
);
flo = XieCreatePhotoflo( xp->d, flograph, flo_elements );
}
if ( !reps )
FreeDecodeNotifyEventStuff( xp, p );
if ( decode_params )
XFree( decode_params );
return reps;
}
int
InitImportObscuredEvent( xp, p, reps )
XParms xp;
Parms p;
int reps;
{
flo = ( XiePhotoflo ) NULL;
flograph = ( XiePhotoElement * ) NULL;
flo_elements = 2;
flograph = XieAllocatePhotofloGraph(flo_elements);
if ( flograph == ( XiePhotoElement * ) NULL )
{
fprintf( stderr, "XieAllocatePhotofloGraph failed\n" );
reps = 0;
}
else
{
XieFloImportDrawable(&flograph[0],
xp->w,
0,
0,
WIDTH,
HEIGHT,
0,
True
);
XieFloExportDrawable(&flograph[1],
1, /* source phototag number */
drawableWindow,
xp->fggc,
0, /* x offset in window */
0 /* y offset in window */
);
XMoveWindow( xp->d, drawableWindow, 100, 100 );
XMapRaised( xp->d, drawableWindow );
XSync( xp->d, 0 );
GetXIEWindow( xp, p, xp->w, 1 );
dontClear = True;
flo = XieCreatePhotoflo( xp->d, flograph, 2 );
}
if ( !reps )
{
XUnmapWindow( xp->d, drawableWindow );
FreeImportObscuredEventStuff( xp, p );
}
return( reps );
}
int
InitExportAvailableEvent( xp, p, reps )
XParms xp;
Parms p;
int reps;
{
int lutSize;
char *lut;
XieLTriplet start, length;
XIELut = ( XieLut ) NULL;
flograph = ( XiePhotoElement * ) NULL;
flo = ( XiePhotoflo ) NULL;
lutSize = 10;
lut = (char *)malloc( lutSize );
data = (char *)malloc( lutSize );
if ( lut == ( char * ) NULL || data == ( char * ) NULL )
{
reps = 0;
}
else
{
if ( ( XIELut = GetXIELut( xp, p, lut, lutSize, lutSize ) ) ==
( XieLut ) NULL )
{
reps = 0;
}
else
{
flo_elements = 2;
flograph = XieAllocatePhotofloGraph( flo_elements );
if ( flograph == ( XiePhotoElement * ) NULL )
{
fprintf( stderr,
"XieAllocatePhotofloGraph failed\n" );
reps = 0;
}
else
{
length[ 0 ] = lutSize;
length[ 1 ] = 0;
length[ 2 ] = 0;
start[ 0 ] = 0;
start[ 1 ] = 0;
start[ 2 ] = 0;
XieFloImportLUT(&flograph[0], XIELut);
XieFloExportClientLUT(&flograph[1],
1, /* source phototag number */
xieValMSFirst,
xieValNewData,
start,
length
);
flo = XieCreatePhotoflo( xp->d, flograph, flo_elements );
}
}
}
if ( lut )
free( lut );
if ( !reps )
FreeExportAvailableEventStuff( xp, p );
return( reps );
}
void
DoPhotofloDoneEvent( xp, p, reps )
XParms xp;
Parms p;
int reps;
{
int i;
for (i = 0; i != reps; i++) {
XieExecutePhotoflo( xp->d, flo, True );
WaitForXIEEvent( xp, ( ( EventParms * ) p->ts )->event, flo, 0, showErrors );
}
}
void
DoDecodeNotifyEvent( xp, p, reps )
XParms xp;
Parms p;
int reps;
{
int i;
for (i = 0; i != reps; i++) {
XieExecutePhotoflo( xp->d, flo, True );
/* send only part of the data - should cause the event */
PumpTheClientData( xp, p, flo, 0, 1, p->finfo.image1->data,
size / 2, 0 );
WaitForXIEEvent( xp, ( ( EventParms * ) p->ts )->event, flo, 0, showErrors );
WaitForXIEEvent( xp, xieEvnNoPhotofloDone, flo, 0, False );
}
}
void
DoImportObscuredEvent( xp, p, reps )
XParms xp;
Parms p;
int reps;
{
int i;
for (i = 0; i != reps; i++) {
XieExecutePhotoflo( xp->d, flo, True );
WaitForXIEEvent( xp, ( ( EventParms * ) p->ts )->event, flo, 0, showErrors);
WaitForXIEEvent( xp, xieEvnNoPhotofloDone, flo, 0, False );
}
}
void
DoExportAvailableEvent( xp, p, reps )
XParms xp;
Parms p;
int reps;
{
int i, done;
for (i = 0; i != reps; i++) {
XieExecutePhotoflo( xp->d, flo, True );
WaitForXIEEvent( xp, ( ( EventParms * ) p->ts )->event,
flo, 2, showErrors );
done = 0;
while ( !done )
{
ReadNotifyExportData( xp, p, 0, flo, 2,
sizeof( XieRectangle ), 1, &data, &done );
}
WaitForXIEEvent( xp, xieEvnNoPhotofloDone,
flo, 0, False );
}
}
void
EndEvents( xp, p )
XParms xp;
Parms p;
{
int which;
XSetErrorHandler( None );
which = ( ( EventParms * ) p->ts )->event;
switch( which )
{
case xieEvnNoExportAvailable:
FreeExportAvailableEventStuff( xp, p );
break;
case xieEvnNoPhotofloDone:
FreePhotofloDoneEventStuff( xp, p );
break;
case xieEvnNoColorAlloc:
EndConvertToIndex( xp, p );
break;
case xieEvnNoDecodeNotify:
FreeDecodeNotifyEventStuff( xp, p );
break;
case xieEvnNoImportObscured:
XUnmapWindow( xp->d, drawableWindow );
FreeImportObscuredEventStuff( xp, p );
break;
}
}
int
FreePhotofloDoneEventStuff( xp, p )
XParms xp;
Parms p;
{
if ( data )
{
free( data );
data = ( char * ) NULL;
}
if ( XIEPhotomap )
{
XieDestroyPhotomap( xp->d, XIEPhotomap );
XIEPhotomap = ( XiePhotomap ) NULL;
}
if ( XIEPhotomap2 )
{
XieDestroyPhotomap( xp->d, XIEPhotomap2 );
XIEPhotomap2 = ( XiePhotomap ) NULL;
}
if ( flograph )
{
XieFreePhotofloGraph(flograph,flo_elements);
flograph = ( XiePhotoElement * ) NULL;
}
if ( flo )
{
XieDestroyPhotoflo( xp->d, flo );
flo = ( XiePhotoflo ) NULL;
}
}
int
FreeImportObscuredEventStuff( xp, p )
XParms xp;
Parms p;
{
if ( flograph )
{
XieFreePhotofloGraph(flograph,flo_elements);
flograph = ( XiePhotoElement * ) NULL;
}
if ( flo )
{
XieDestroyPhotoflo( xp->d, flo );
flo = ( XiePhotoflo ) NULL;
}
}
int
FreeExportAvailableEventStuff( xp, p )
XParms xp;
Parms p;
{
if ( data )
{
free( data );
data = ( char * ) NULL;
}
if ( flograph )
{
XieFreePhotofloGraph(flograph,flo_elements);
flograph = ( XiePhotoElement * ) NULL;
}
if ( flo )
{
XieDestroyPhotoflo( xp->d, flo );
flo = ( XiePhotoflo ) NULL;
}
if ( XIELut )
{
XieDestroyLUT( xp->d, XIELut );
XIELut = ( XieLut ) NULL;
}
}
int
FreeDecodeNotifyEventStuff( xp, p )
XParms xp;
Parms p;
{
if ( data )
{
free( data );
data = ( char * ) NULL;
}
if ( XIEPhotomap )
{
XieDestroyPhotomap( xp->d, XIEPhotomap );
XIEPhotomap = ( XiePhotomap ) NULL;
}
if ( XIEPhotomap2 )
{
XieDestroyPhotomap( xp->d, XIEPhotomap2 );
XIEPhotomap2 = ( XiePhotomap ) NULL;
}
if ( flograph )
{
XieFreePhotofloGraph(flograph,flo_elements);
flograph = ( XiePhotoElement * ) NULL;
}
if ( flo )
{
XieDestroyPhotoflo( xp->d, flo );
flo = ( XiePhotoflo ) NULL;
}
}
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