mirror of
https://git.k-space.ee/arti/vt1200.git
synced 2026-11-03 12:33:16 +02:00
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).
171 lines
6.9 KiB
C
171 lines
6.9 KiB
C
/* $XConsortium: flodata.h,v 1.4 94/04/17 20:34:04 rws Exp $ */
|
|
/**** module flodata.h ****/
|
|
/******************************************************************************
|
|
|
|
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.
|
|
*******************************************************************************
|
|
|
|
flodata.h - data formats
|
|
|
|
Dean Verheiden, Robert NC Shelley -- AGE Logic, Inc. April 1993
|
|
|
|
******************************************************************************/
|
|
|
|
#ifndef _XIE_FLODATA
|
|
#define _XIE_FLODATA
|
|
|
|
#include <flo.h>
|
|
|
|
/*
|
|
* Supported data format classes
|
|
*/
|
|
#define BIT_PIXEL 1 /* bitonal data */
|
|
#define BYTE_PIXEL 2 /* up to 2^8 levels */
|
|
#define PAIR_PIXEL 3 /* up to 2^16 levels */
|
|
#define QUAD_PIXEL 4 /* up to 2^32 levels */
|
|
#define UNCONSTRAINED 16 /* levels are undefined */
|
|
#define LUT_ARRAY 32 /* non-canonic lut array */
|
|
#define RUN_LENGTH 64 /* non-canonic run_length */
|
|
#define STREAM 128 /* non-canonic generic stream */
|
|
|
|
#define IsntLut(dfc) (dfc != LUT_ARRAY)
|
|
#define IsntDomain(dfc) (dfc & ~(RUN_LENGTH | BIT_PIXEL))
|
|
#define IsntCanonic(dfc) (dfc & (RUN_LENGTH | STREAM | LUT_ARRAY))
|
|
#define IsntConstrained(dfc) \
|
|
(dfc & (UNCONSTRAINED | RUN_LENGTH | STREAM | LUT_ARRAY))
|
|
|
|
#define IsLut(dfc) (dfc == LUT_ARRAY)
|
|
#define IsDomain(dfc) (!IsntDomain(dfc))
|
|
#define IsCanonic(dfc) (!IsntCanonic(dfc))
|
|
#define IsConstrained(dfc) (!IsntConstrained(dfc))
|
|
|
|
#define IndexClass(dfc) (dfc == UNCONSTRAINED ? 0 : dfc )
|
|
|
|
#define ConstrainConst(fconst,levels) \
|
|
( (fconst <= 0.) ? (CARD32) 0 : \
|
|
(fconst >= levels) ? (CARD32) (levels - 1) : \
|
|
(CARD32) (fconst + 0.5))
|
|
|
|
/*
|
|
* Data types and sizes for supported format classes
|
|
*/
|
|
typedef CARD8 BitPixel;
|
|
typedef CARD8 BytePixel;
|
|
typedef CARD16 PairPixel;
|
|
typedef CARD32 QuadPixel;
|
|
typedef float RealPixel; /* type of Unconstrained data */
|
|
|
|
#define sz_BitPixel 1
|
|
#define sz_BytePixel 8
|
|
#define sz_PairPixel 16
|
|
#define sz_QuadPixel 32
|
|
#define sz_RealPixel 32 /* size of Unconstrained data */
|
|
|
|
typedef struct _format {
|
|
CARD8 class; /* format class {e.g. BIT_PIXEL, STREAM, ...} */
|
|
CARD8 band; /* band number {0,1,2} */
|
|
BOOL interleaved; /* true if pixels contain multiple bands */
|
|
CARD8 depth; /* minimum bits needed to contain levels */
|
|
CARD32 width; /* width in pixels */
|
|
CARD32 height; /* height in pixels */
|
|
CARD32 levels; /* quantization levels */
|
|
CARD32 stride; /* distance between adjacent pixels in bits */
|
|
CARD32 pitch; /* distance between adjacent scanlines in bits */
|
|
} formatRec, *formatPtr;
|
|
|
|
|
|
typedef struct _strip {
|
|
struct _strip *flink; /* link to next strip */
|
|
struct _strip *blink; /* link to previous strip */
|
|
struct _strip *parent;/* link to strip from which this one was cloned */
|
|
formatRec *format; /* pointer to format record that describes data */
|
|
CARD32 refCnt; /* reference count */
|
|
BOOL Xowner; /* if true, core X "owns" the data buffer */
|
|
BOOL canonic; /* if true, units are scanlines, otherwise bytes */
|
|
BOOL final; /* if true, this is the last strip for this band */
|
|
BOOL cache; /* if true, buffer can be cached (standard size) */
|
|
CARD32 start; /* first line/byte of overall data in this strip */
|
|
CARD32 end; /* last line/byte of overall data in this strip */
|
|
CARD32 length; /* lines/bytes of useable data in buffer */
|
|
CARD32 bitOff; /* bit offset to first data (usually zero) */
|
|
CARD32 bufSiz; /* size of the data buffer in bytes */
|
|
CARD8 *data; /* pointer to the data buffer */
|
|
} stripRec, *stripPtr;
|
|
|
|
/* generic header for managing circular doubly linked lists
|
|
*/
|
|
typedef struct _lst {
|
|
struct _lst *flink;
|
|
struct _lst *blink;
|
|
} lstRec, *lstPtr;
|
|
|
|
/* link-pair for managing a circular doubly linked list of strips
|
|
*/
|
|
typedef struct _striplst {
|
|
stripRec *flink;
|
|
stripRec *blink;
|
|
} stripLstRec, *stripLstPtr;
|
|
|
|
#endif /* end _XIE_FLODATA */
|