forked from arti/vt1200
arti
d8d54bb990
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).
296 lines
8.0 KiB
C
296 lines
8.0 KiB
C
/*
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* *****************************************************************
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* * *
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* * Copyright (c) Digital Equipment Corporation, 1991, 1994 *
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* * *
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* * All Rights Reserved. Unpublished rights reserved under *
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* * the copyright laws of the United States. *
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* * *
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* * The software contained on this media is proprietary to *
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* * and embodies the confidential technology of Digital *
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* * Equipment Corporation. Possession, use, duplication or *
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* * dissemination of the software and media is authorized only *
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* * pursuant to a valid written license from Digital Equipment *
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* * Corporation. *
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* * *
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* * RESTRICTED RIGHTS LEGEND Use, duplication, or disclosure *
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* * by the U.S. Government is subject to restrictions as set *
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* * forth in Subparagraph (c)(1)(ii) of DFARS 252.227-7013, *
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* * or in FAR 52.227-19, as applicable. *
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* * *
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* *****************************************************************
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*/
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/*
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* HISTORY
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*/
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/*******************************************************************************
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** Copyright 1989-1991 by Digital Equipment Corporation, Maynard, Massachusetts,
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** and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
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**
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** All Rights Reserved
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**
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** Permission to use, copy, modify, and distribute this software and its
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** documentation for any purpose and without fee is hereby granted,
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** provided that the above copyright notice appear in all copies and that
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** both that copyright notice and this permission notice appear in
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** supporting documentation, and that the names of Digital or MIT not be
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** used in advertising or publicity pertaining to distribution of the
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** software without specific, written prior permission.
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**
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** DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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** ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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** DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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** ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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** WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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** ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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** SOFTWARE.
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**
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*******************************************************************************/
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/************************************************************************
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**
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** FACILITY:
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**
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** X Image Extension
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** Sample Machine Independant DDX
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**
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** ABSTRACT:
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**
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** The Xie module contains definitions used by all of the XIE layers
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** -- from the applications level through the XIE server levels.
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**
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** ENVIRONMENT:
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**
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** VAX/VMS V5.3
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** ULTRIX V3.1
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**
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** AUTHOR(S):
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**
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** Richard J. Piccolo
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** Robert NC Shelley
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**
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** CREATION DATE:
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**
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** April 20, 1989
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**
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************************************************************************/
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/*
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** Symbol XIEAPPL allows XieAppl.h to be included multiple times.
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*/
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#ifndef XIEAPPL
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#define XIEAPPL /* The "endif" MUST be the last line of this file. */
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/*****************************************************************************
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** Constants
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*****************************************************************************/
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/*
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** X Image Extension name string
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*/
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#define XieS_Name "Xie"
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/*
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** Number of supported Events and Errors
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*/
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#define XieK_NumErrors 0
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#define XieK_NumEvents 3
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/*
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** Xie Event constants
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*/
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#define XieK_ComputationEvent 0
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#define XieK_PhotofloEvent 1
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#define XieK_DisplayEvent 2
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/*
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** Xie Event masks
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*/
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#define XieM_ComputationEvent (1<<XieK_ComputationEvent)
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#define XieM_PhotofloEvent (1<<XieK_PhotofloEvent)
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#define XieM_DisplayEvent (1<<XieK_DisplayEvent)
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/*
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** Xie Resource Types
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*/
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#define XieK_Photoflo 1 /* process control object (pipeline) */
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#define XieK_Photomap 2 /* permanent image object */
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#define XieK_Phototap 3 /* ephemeral image object */
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#define XieK_IdcCpp 4 /* control processing plane */
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#define XieK_IdcRoi 5 /* region of interest */
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#define XieK_IdcTmp 6 /* template (eg. convolution kernel) */
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/*
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** Implementation bounds
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*/
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#define XieK_MaxComponents 3 /* number of spectral components supported*/
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#define XieK_MaxComponentDepth 16 /* bits per spectral component supported */
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#define XieK_MaxPlanes 24 /* number of image data planes supported */
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#define XieK_AllPlanes 0x00FFFFFF /* mask indicating all image data planes */
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/*
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** Spectral Component Mappings
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*/
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#define XieK_Bitonal 1
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#define XieK_GrayScale 2
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#define XieK_RGB 3
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/*
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** Component Space Organizations
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*/
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#define XieK_BandByPixel 1
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#define XieK_BandByLine 2
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#define XieK_BandByPlane 3
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#define XieK_BitByPlane 4
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/*
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** Transport modes
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*/
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#define XieK_GetStream 1
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#define XieK_PutStream 2
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#define XieK_Tile 3
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/*
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** Get/Put Stream status
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*/
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#define XieK_StreamFinal 0
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#define XieK_StreamEmpty 1
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#define XieK_StreamMore 2
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#define XieK_StreamError 3
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/*
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** Compression Schemes
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*/
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#define XieK_PCM 0
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#define XieK_G31D 1
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#define XieK_G32D 2
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#define XieK_G42D 3
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#define XieK_DCT 4
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/*
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** Line Progressions
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*/
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#define XieK_LP90 1
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#define XieK_LP270 2
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/*
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** Pixel Progressions
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*/
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#define XieK_PP0 1
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#define XieK_PP90 2
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#define XieK_PP180 3
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#define XieK_PP270 4
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/*
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** Polarities
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*/
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#define XieK_ZeroBright 0
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#define XieK_ZeroDark 1
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/*
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** Photoflo status
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*/
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#define XieK_PhotofloFormation 0
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#define XieK_PhotofloComplete 1
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#define XieK_PhotofloRunning 2
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#define XieK_PhotofloAborted 3
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/*
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** Statistics Types
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*/
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#define XieK_Minimum 1
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#define XieK_Maximum 2
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#define XieK_Mean 3
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#define XieK_StdDev 4
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#define XieK_Variance 5
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/*
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** Gray to Bitonal bit reduction methods
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*/
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#define XieK_Dither 1
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#define XieK_Threshold 2
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/*
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** Conditional Operator Types
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*/
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#define XieK_LT 1
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#define XieK_LE 2
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#define XieK_EQ 3
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#define XieK_NE 4
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#define XieK_GT 5
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#define XieK_GE 6
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/*
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** Area Operators
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*/
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#define XieK_AreaOp1Add 1
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#define XieK_AreaOp1Mult 2
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#define XieK_AreaOp2Min 3
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#define XieK_AreaOp2Max 4
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#define XieK_AreaOp2Sum 5
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/*
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** Arithmetical Operators
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*/
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#define XieK_AddII 1
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#define XieK_AddIC 2
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#define XieK_SubII 3
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#define XieK_SubIC 4
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#define XieK_SubCI 5
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#define XieK_MulII 6
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#define XieK_MulIC 7
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#define XieK_DivII 8
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#define XieK_DivIC 9
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#define XieK_DivCI 10
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#define XieK_MinII 11
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#define XieK_MinIC 12
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#define XieK_MaxII 13
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#define XieK_MaxIC 14
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/*
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** Logical Operators
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*/
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#define XieK_AND 1
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#define XieK_OR 2
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#define XieK_XOR 3
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#define XieK_NOT 4
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#define XieK_ShiftUp 5
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#define XieK_ShiftDown 6
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/*
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** Mathematical Functions
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*/
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#define XieK_Exp 1
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#define XieK_Ln 2
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#define XieK_Log2 3
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#define XieK_Log10 4
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#define XieK_Square 5
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#define XieK_Sqrt 6
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/*
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** Constraint Models
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*/
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#define XieK_MoveMode 1 /* Move without changing data */
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#define XieK_HardClip 2
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#define XieK_ClipScale 3
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#define XieK_HardScale 4
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/*
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** MatchHistogram Distribution Shapes
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*/
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#define XieK_Flat 1
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#define XieK_Gaussian 2
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#define XieK_Hyperbolic 3
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/*****************************************************************************
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** Structures
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*****************************************************************************/
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/*
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** none
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*/
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/*
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** This "endif" MUST be the last line of this file.
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*/
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#endif /* end of XIEAPPL -- NO DEFINITIONS ALLOWED BEYOND THIS POINT */
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