CDSilConversionImpl.mesa
Copyright © 1984, 1985, 1986, 1987 by Xerox Corporation. All rights reserved.
Last edited by: Christian Jacobi, February 25, 1987 4:25:13 pm PST
gbb December 1, 1986 8:12:03 pm PST
This module allows Chipndale to access Sil files and macros.
DIRECTORY
Basics USING [bytesPerWord],
CD USING [Design, Error, ErrorCode, Instance, InterestSize, Layer, Object, LayerKey, Position, Rect, Technology],
CDCells USING [CreateEmptyCell, EnumerateInstances, IncludeMode, IncludeOb, InstEnumerator, SetInterestRect],
CDDirectory USING [Another1, FixChildren, Include],
CDImports USING [LoadAndBindDesign, CreateImportFromCache],
CDIO USING [MakeName, ReadDesign, DesignInReadOperation, WriteDesign],
CDOps USING [CreateDesign],
CDProperties USING [PutObjectProp, RegisterProperty],
CDRects USING [CreateRect],
CDSil USING [cdsil, xaqua, xbrown, xcyan, xgreen, xlime, xmagenta, xneutral, xorange, xpink, xred, xsmoke, xturquise, xultraviolet, xviolet, xwhite, xyellow],
CDSilConversion,
CDTexts USING [Create, FontRec, IsText, MakeFont],
CDViewer USING [CreateViewer],
Commander USING [CommandProc, Register],
CommandTool USING [ParseToList],
FileNames USING [CurrentWorkingDirectory],
FS USING [ComponentPositions, Error, ExpandName, Position, StreamOpen],
ImagerFont USING [Extents, Font, RopeBoundingBox],
IO USING [atom, char, Close, EndOf, EndOfStream, GetChar, int, PutFR, STREAM, UnsafeGetBlock],
Real USING [Round],
Rope USING [ActionType, Cat, Concat, FromChar, FromProc, Length, Map, Replace, ROPE, SkipTo, Substr],
TerminalIO USING [PutRope, UserAbort, Confirm],
TokenIO USING [Handle],
UserProfile USING [CallWhenProfileChanges, ProfileChangedProc, ProfileChangeReason, Token];
CDSilConversionImpl: CEDAR PROGRAM
IMPORTS CD, CDCells, CDDirectory, CDImports, CDIO, CDOps, CDProperties, CDRects, CDSil, CDTexts, CDViewer, Commander, CommandTool, FileNames, FS, ImagerFont, IO, Real, Rope, TerminalIO, UserProfile
EXPORTS CDSilConversion =
BEGIN OPEN CDSilConversion;
fileNotFound: ERROR [reason: Rope.ROPE] = CODE;
Toggles for behaviour of this program
convLibEachTime: BOOLFALSE; -- convert all library files for each model
verbose: BOOL = FALSE; -- Asks the user whether he wants to write the converted model and libraries
Toggles for debugging
debug0: BOOLFALSE; -- reading file
debug1: BOOLFALSE; -- converting
debug2: BOOLFALSE; -- integration of macro files
debug3: BOOLFALSE; -- main Sil model
debug4: BOOLFALSE;-- translation of font names
debugAll: BOOL ← debug0 OR debug1 OR debug2 OR debug3 OR debug4;
Description of the SIL file structure:
The first word in the file is a check code, that can be used to see that the file is actually a Sil format file. This word has two possible values, octal 34562 and 34563. The second value has been adopted as part of the design automation process to indicate that a Sil schematic file has been "build" into a wire-list file via the Build process.
Following this word are a secession of "item blocks" that describe the contents of the Sil drawing. An Item block has the following form:
word 0: macro-code
If this word equals a character code, then this item is to be added to the list of items for the macro Font 4 character. All items which are part of macro definitions will appear first in the file.
word 1: state and X-min
bits 0...3 are used internally to indicate the current state of an item - normal, selected, or deleted.
bits 4...15 are the minimum X coordinate bit position of the bounding box that the item occupies.
word 2: Y-min
bits 0...15 are the minimum Y coordinate bit position of the bounding box that the item occupies.
word 3: color and X-max
bits 0...3 are used to indicate the color associated with this item according to the following table:
00: Neutral  08: Brown
01: Red  09: Orange
02: Yellow  10: Lime
03: Green  11: Turquise
04: Cyan  12: Aqua
05: Violet  13: UltraViolet
06: Magenta  14: Pink
07: White  15: Smoke
bits 4...15 are the maximum X coordinate bit position of the bounding box that the item occupies.
word 4: font, face, and Y-max
bits 0...3 are used to indicate the "font" associated with this item. Font values are interpreted according to the following table:
00: Font 0
01: Font 0 with "boldness" opposite to default value in profile
02: Font 1
03: Font 1 with "boldness" opposite to default value in profile
04: Font 2
05: Font 2 with "boldness" opposite to default value in profile
06: Font 3
07: Font 3 with "boldness" opposite to default value in profile
08: Font 4 macro
09: Font 5 macro
10: Font 6 macro
11: Font 7 macro
12: Font 8 macro
13: Font 9 macro
14: A line with lingth and width indicated by preceeding coordinates
15: A background with area indicated by preceeding coordinates
bit 4 is used to indicate the "italics" opposite to default value in profile. This bit only has significance if the font value is 0 through 7.
bits 5...15 are the maximum Y coordinate bit position of the bounding box that the item occupies.
word 5 etc: optional string
If the preceeding word indicated an item of fonts 0 through 13, then additional words are required to define the characters in the item string. This is done with a BCPL string definition, that is, the left byte of word 5 is the number of characters in the string, the right byte is the first character. Additional words are appended as needed to contain the specified number of character bytes.
All coordinate value are expressed in "Alto Screen" units and are referneced to the upper left hand corner of the screen.
Notice that descriptions of library fonts 5 through 9 characters are not defined within this Sil file. A table is filled in by Sil during input, and later the library files indicated in the user profile are opened, and the front of the file is scanned for items defining the required character codes for each of the library fonts characters.
This boils down to the following Cedar declarations for reading a Sil file.
FourBits: TYPE ~ [0..17B];
SevenBits: TYPE ~ [0..177B];
TwelveBits: TYPE ~ [0..7777B];
SixteenBits: TYPE ~ [0..177777B];
OneBit:  TYPE ~ [0..1];
ElevenBits: TYPE ~ [0..3777B];
mainElementName: CHAR ~ 377C; -- this as name of silobject means it's part of main picture
checkCodeByte1: CHAR ~ '9; -- check code indicating Sil format
unbuiltCheckCodeByte2: CHAR ~ 'r;
builtCheckCodeByte2: CHAR ~ 's;
largeFormatFileByte2: CHAR ~ 'l; -- new password for large format files
SilBlockRef: TYPE ~ REF SilBlock;
LargeSilBlockRef: TYPE ~ REF LargeSilBlock; --new format for large format files
SilBlock: TYPE ~ MACHINE DEPENDENT RECORD [
leftChar, rightChar: CHAR,
state : FourBits,
xMin : TwelveBits,
yMin : SixteenBits,
color : FourBits,
xMax : TwelveBits,
font : FourBits,
italic : OneBit,
yMax : ElevenBits   
];
LargeSilBlock: TYPE ~ MACHINE DEPENDENT RECORD [
leftChar, rightChar: CHAR,
xMin: INTEGER,
yMin: INTEGER,
xMax: INTEGER,
yMax: INTEGER,
color: FourBits,
font: FourBits,
italic: OneBit,
pad: SevenBits ← 0
];
For convenience we introduce the following font subranges.
TrueFonts: TYPE ~ [0..3];
MainFile: TYPE ~ [4..4];
LibraryFile: TYPE ~ [5..9]; declared in the definitions
SilFile: TYPE ~ [4..9];
InternalFonts: TYPE ~ [0..15];
InternalMacroFonts: TYPE ~ [8..13];
InternalFileMacroFonts: TYPE ~ [8..8];
InternalTrueFonts: TYPE ~ [0..7];
InternalLibraryFile: TYPE ~ [9..13];
InternalRopeFonts: TYPE ~ [0..13];  -- those fonts which do not denote boxes. See below
InternalBoxFonts: TYPE ~ [14..15];
InternalForegroundBoxFonts: TYPE ~ [14..14];
InternalBackgroundBoxFonts: TYPE ~ [15..15];
mainFile: MainFile ~ 4;
internalFileMacroFont: InternalFonts ~ 8;
foregroundBoxFont: InternalFonts ~ 14;
backgroundBoxFont: InternalFonts ~ 15;
Color: TYPE ~ [0..15];
colorTable: ARRAY Color OF CD.Layer ~ [CDSil.xneutral, CDSil.xred, CDSil.xyellow, CDSil.xgreen, CDSil.xcyan, CDSil.xviolet, CDSil.xmagenta, CDSil.xwhite, CDSil.xbrown, CDSil.xorange, CDSil.xlime, CDSil.xturquise, CDSil.xaqua, CDSil.xultraviolet, CDSil.xpink, CDSil.xsmoke];
neutralColor: Color ~ 0;
Storage of fonts.
Font: TYPE ~ RECORD [
name: Rope.ROPE,
descr: REF CDTexts.FontRec ← NIL
];
cellFonts: ARRAY InternalTrueFonts OF ARRAY BOOL OF Font;
Storage of macros.
ObjectName: TYPE ~ CHAR[' .. '~]; -- Only printing characters are used
MacroName: TYPE ~ CHAR['! .. '~]; -- All but <space>
mainObject: ObjectName ~ ' ; -- object whose name is <space>
SilObject: TYPE ~ RECORD [
xMin, yMin: INTEGER, -- Upper Left boundary of box or string
xMax, yMax: INTEGER, -- Lower right boundary of box, guess for lower right of string
color: Color, -- Color used to display or print silobject
font: InternalFonts,
italic: BOOL, -- Only interesting for Ropes (fonts 0-13), TRUE for italic strings
value: Rope.ROPENIL
];
SilObjectList: TYPE ~ LIST OF SilObject;
Macro: TYPE ~ RECORD [
xMin, yMin: INTEGER ← 32767, -- Upper Left boundary of macro definition
xMax, yMax: INTEGER ← -1, -- Lower right boundary of macro definition
 note: coordinates are Alto screen absolute, hence -1 is OK.
objects: SilObjectList ← NIL,
cdCellPtr: CD.Object ← NIL-- This field used to generate recursion if a cell includes a cell not known yet.
];
LibraryDesign: TYPE ~ RECORD [
data: CD.Design ← NIL,
imported: BOOLFALSE, -- Chipndale wants only a single import of the same library
written: BOOLFALSE-- libraries are written only once per run
];
MacroPtr: TYPE ~ REF Macro ← NIL;
MacroFile: TYPE ~ ARRAY ObjectName OF MacroPtr;
allMacros: REF MacroFile ← NIL;
coloredMacros: ARRAY Color OF CD.Object; -- the other stuff is in the neutral macro record
silDesigns: ARRAY SilFile OF LibraryDesign; -- need all because of imports
background: ATOM = $SilBackground;
silProfilePrefix: Rope.ROPE ~ "Sil.Font";
cdSilProfilePrefix: Rope.ROPE ~ "Chipndale.chipnsil.Library";
lambda: INTEGER = CDSil.cdsil.lambda; -- Sil uses integers throughout
lambdaAltoScreenHeights: INTEGER ~ lambda * 808;
File name towahboo.
CrackNames: PROC [genericName: Rope.ROPE] RETURNS [fullSilName: Rope.ROPE, properName: Rope.ROPE] ~ {
Takes any name in any format and produces a full Sil file names in slash convention and a proper name (base). A Chipndale name is not produced because this is already done by Chipndale.
namePos: FS.ComponentPositions;
silExtension: Rope.ROPE ~ "Sil";
dummy: Rope.ROPE; -- in Cedar 5.2 FS.ExpandName does not work as documented
fullSilName ← CDIO.MakeName [base: genericName, ext: silExtension, wDir: FileNames.CurrentWorkingDirectory[]];
[fullFName: dummy, cp: namePos] ← FS.ExpandName [name: fullSilName];
properName ← Rope.Substr [base: dummy, start: namePos.base.start, len: namePos.base.length]
}; -- end CrackNames
Causes all library files to be reconverted.
FlushLibraries: UserProfile.ProfileChangedProc ~ BEGIN
Useful when trying to crack a Sil file.
FOR lib: LibraryFile IN LibraryFile DO
silDesigns[lib].data ← NIL; silDesigns[lib].imported ← FALSE
ENDLOOP
END; -- FlushLibraries
A small utility.
TechnologyIsCdsil: PROC [d: TokenIO.Handle] RETURNS [BOOL] ~ {
IF d = NIL THEN CD.Error [explanation: "Programming error in ReadSilLibrary"];
RETURN [CDIO.DesignInReadOperation[d].technology = CDSil.cdsil]
}; -- end TechnologyIsCdsil
Reading a design.
ReadSilModel: PUBLIC PROC [name: Rope.ROPE] RETURNS [design: CD.Design ← NIL] ~ {
Reads a file containing a Sil model and makes it avalilable as a Chipndale design 'silDesign' with specific cells 'silDesignCells'.
designName: Rope.ROPE;
write: BOOLNOT verbose;
[fullSilName: name, properName: designName] ← CrackNames [name];
IF convLibEachTime THEN FlushLibraries [edit];
design ← CDOps.CreateDesign [technology: CDSil.cdsil];
design.name ← designName;
silDesigns[mainFile].data ← design;
ReadSilFile [fileName: name]; ConvertSilFile [file: mainFile];
IF verbose THEN write ← TerminalIO.Confirm [text: "CDSilConversion", help: Rope.Cat["Write ", designName, " to disk ?"]];
IF write THEN
IF NOT CDIO.WriteDesign [design: design, to: designName] THEN
TerminalIO.PutRope [Rope.Cat["Warning: The design ", designName, " cannot be written. Proceeding anyway.\n"]];
[] ← CDViewer.CreateViewer [design: design];
}; -- end ReadSilModel
Reading a library file.
ReadSilLibrary: PUBLIC PROC [library: LibraryFile] RETURNS [cells: CD.Design ← NIL] ~ {
Reads all macros from a macro disk file and stores them into the Chipndale cells. The design 'cells' additionally contains a synopsis of the cells it contains. For normal usage, 'cells' is not needed.
libraryPrefix: Rope.ROPE ~ "sil.lb"; -- Cedar Sil
designPrefix: Rope.ROPE ~ "SilLib"; -- Chipnsil
macroFileName, cdFileName, defaultName, designName: Rope.ROPE;
key: Rope.ROPE; -- Access key for the User Profile.
write: BOOLNOT verbose;
Libray may already have been converted.
IF silDesigns[library].data # NIL THEN RETURN [silDesigns[library].data];
Build Chipnsil design name.
key ← Rope.Concat [cdSilProfilePrefix, Rope.FromChar['0 + library]];
defaultName ← Rope.Cat [designPrefix, Rope.FromChar['0 + library], ".dale"];
cdFileName ← UserProfile.Token [key: key, default: defaultName];
designName ← CrackNames [cdFileName].properName;
Build the Sil library name.
key ← Rope.Concat [silProfilePrefix, Rope.FromChar['0 + library]];
defaultName ← Rope.Concat [libraryPrefix, Rope.FromChar['0 + library]];
macroFileName ← UserProfile.Token [key: key, default: defaultName];
IF NOT convLibEachTime THEN BEGIN
Check whether the library file already exists in Chipndale format and read it if this is the case.
cells ← CDIO.ReadDesign [from: cdFileName, check: TechnologyIsCdsil];
IF cells # NIL THEN {silDesigns[library].data ← cells; RETURN [cells]}
ELSE
TerminalIO.PutRope [Rope.Cat["The library file ", cdFileName, " is not available. It is being converted from ", macroFileName, "\n"]];
END; -- NOT convLibEachTime
Read in the the library file specified and convert it.
ReadSilFile [fileName: macroFileName];
cells ← CDOps.CreateDesign[technology: CDSil.cdsil];
cells.name ← designName;
silDesigns[library].data ← cells;
ConvertSilFile [file: library];
Write the library to disk, if necessary.
IF verbose THEN write ← TerminalIO.Confirm [text: "CDSilConversion", help: Rope.Cat ["Write ", designName, " to disk ?"]];
IF write THEN {
IF NOT silDesigns[library].written THEN {
silDesigns[library].written ← CDIO.WriteDesign [design: cells, to: cdFileName];
IF NOT silDesigns[library].written THEN
TerminalIO.PutRope [Rope.Cat["Warning: The design ", designName, " cannot be written. Proceeding anyway.\n"]]
}
}; -- IF write
RETURN [cells]
};-- end ReadSilLibrary
SetFonts: UserProfile.ProfileChangedProc ~ {
Gets from the user profile the fonts and makes the names for the Chipndale fonts. For the moment we consider only the display font, as Cedar Sil does. The Chipndale fonts are made only when they are referenced the first time.
key: Rope.ROPE; -- Access key for the User Profile.
TrueFontsDefaults: TYPE ~ ARRAY TrueFonts OF Rope.ROPE;
trueFontsDefaults: TrueFontsDefaults ~ ["Helvetica10", "Helvetica7", "Template64", "Gates32"];
italic: BOOL ~ TRUE;
FixAttibutes: PROC [coarseName: Rope.ROPE] RETURNS [notBold, italic, both: Rope.ROPE] ~ {
Takes the coarse name as it is specified in the user profile, and produces one with the 'bold' (B) attribute reversed as well as one with the 'italic' (I) attibute. The 'narrow' (N) attribute is ignored.
properName, dummy, attributes, notBAttr: Rope.ROPE;
namePos: FS.ComponentPositions;
attributePos, bPos: INTEGER;
alreadyItalic: BOOL;
[fullFName: dummy, cp: namePos] ← FS.ExpandName [name: coarseName];
properName ← Rope.Substr [base: dummy, start: namePos.base.start, len: namePos.base.length];
attributePos ← properName.SkipTo [0, "0123456789"];
attributes ← properName.Substr [attributePos, properName.Length[]-attributePos];
Fix boldness attribute.
bPos ← attributes.SkipTo [0, "bB"];
IF bPos = attributes.Length[] THEN notBAttr ← Rope.Concat [attributes, "B"]
ELSE notBAttr ← Rope.Replace [base: attributes, start: bPos, len: 1];
Add an italic attribute if none is present.
alreadyItalic ← (attributes.SkipTo [0, "iI"] # attributes.Length []);
IF NOT alreadyItalic THEN attributes ← Rope.Concat [attributes, "I"];
Build the new font names.
notBold ← Rope.Replace [base: properName, start: attributePos, len: properName.Length[]-attributePos, with: notBAttr];
italic ← Rope.Replace [base: properName, start: attributePos, len: properName.Length[]-attributePos, with: attributes];
IF alreadyItalic THEN both ← notBold
ELSE {
notBAttr ← Rope.Concat [notBAttr, "I"];
both ← Rope.Replace [base: properName, start: attributePos, len: properName.Length[]-attributePos, with: notBAttr]
};
IF debug4 THEN {
TerminalIO.PutRope [Rope.Cat["Original font: ", coarseName, ", notBold: "]];
TerminalIO.PutRope [Rope.Cat[notBold, ", italic: ", italic]];
TerminalIO.PutRope [Rope.Cat[", both: ", both, "\n"]];
}
}; -- end FixAttibutes
FOR i: TrueFonts IN TrueFonts DO
Get the true font names from the profile.
key ← Rope.Concat [silProfilePrefix, Rope.FromChar ['0 + i]];
cellFonts[2*i][~italic].name ← UserProfile.Token [key: key, default: trueFontsDefaults[i]];
[cellFonts[2*i+1][~italic].name, cellFonts[2*i][italic].name, cellFonts[2*i+1][italic].name] ← FixAttibutes [cellFonts[2*i][~italic].name]
ENDLOOP
}; -- end SetFonts
MakeCDFont: PROC [nr: InternalTrueFonts, italic: BOOL] ~ {
fullName: Rope.ROPE;
fullName ← Rope.Cat ["Xerox/TiogaFonts/", cellFonts[nr][italic].name];
In the version of Cedar Sil as of today, November 26, 1986 4:06:59 pm PST, there is a new command (^A) that allows you to use either strike or spline fonts for editing. However, it is not recorded in the Sil file which one you used to create the document. The Sil specification says that fonts are strike fonts, and that is what you get. If the document is scrambled when you read it because it was created with spline fonts, you lose: LIFE IS HARD! However, if you print the ChipNSil file using Nectarine, everithing will look OK.
cellFonts[nr][italic].descr ← CDTexts.MakeFont [name: fullName, scale: lambda];
IF cellFonts[nr][italic].descr = NIL THEN {
TerminalIO.PutRope [Rope.Cat["CDTexts.MakeFont returns not found on ", fullName, ". Fatal error.\n"]];
ERROR ABORTED
}
}; -- end MakeCDFont
ConvertSilFile: PROC [file: SilFile] ~ {
Transforms all Sil macros to Chipndale cells. If a macro contains a macro from another macro file, the following policy is adopted: We try to import it an abort if we fail to do so.
MacroToObject: PROC [sil: MacroPtr, name: ObjectName] RETURNS [object: CD.Object ← NIL] ~ {
Produces a Chipndale object from a Sil macro. The return parameter is necessary for the recursion.
size, position: CD.Position ← [0, 0];
topLeftPos: CD.Position ← [0, 0];
cdObPtr: CD.Object ← NIL; -- object before it is either a cell or an application
cell: CD.Object ← NIL; -- NIL when object is not a cell
boundingBox: CD.Rect; -- interesting rectangle
height: INTEGER ← 0; -- height of cell or main object
import, workingOnMainObject: BOOL;
impName: Rope.ROPE; -- global importee name assigned in FOR loop and used in the recursion
ColoredMacro: PROC [name: ObjectName, color: Color ← neutralColor]
RETURNS [colored: CD.Object] ~ BEGIN
In Sil, if the color of the instantiation of a macro is not neutral, then all elements of the macro get this color. To do this, a new cell with all the contents on a new layer has to be created. This is done here partially, i.e., only one recursion level down and only for internal macros (font 4): LIFE IS HARD!
If you want to implement is, you have to add to allMacros an index for the color. There are several cases, depending on whether the library has been converted at all and on whether the specific instance color has already been seen. To know the color, you have to introduce a global variable to get it out of the loop "FOR silObj: SilObjectList ← sil.objects". You cannot put it in as a procedure parameter because the procedure has to be of type Rope.ActionType. On the other side, be careful, because this procedure may call itself recursively!
To make a copy of a cell use the procedure CDDirectory.Another. To change the layers of all objects in it use the procedure CDCells.EnumerateInstances. The way Sil is used, the instances you will be called back with, are either rectangles or ropes, so everything is easy. The code in Sil, however, allows you to have also other cells, i.e., macros in there, so you should take care of all the recursions, because some day somebody will find it out and you will get bitten.
Why is it done that way in Sil? Well, since Sil (at least the first conversion of Alto Sil to Cedar Sil that was the basis for this program) simply interprets the Sil file, it merely calls Imager.SetColor everytime it finds a color different from Neutral. Guess why selection is so slow in Sil!
ColorContents: CDCells.InstEnumerator = BEGIN
Cannot simply change the layer, since because of caching the objects in the copied cell are the sames than those in the original cell. Hence simply changing the layer would cause the change in the original cell and in all itsd colored copies.
IF ((inst.ob.class.objectType = $Rect) OR (CDTexts.IsText [inst.ob])) THEN
[] ← inst.ob.class.newLayer [inst, colorTable[color]]
END; -- ColorContents
IF (color = neutralColor) THEN BEGIN
IF (allMacros[name].cdCellPtr = NIL) THEN BEGIN
IF debug1 THEN
TerminalIO.PutRope [IO.PutFR [" will prepone macro %g\n", IO.char[name]]];
RETURN [MacroToObject [allMacros[name], name]]
END
ELSE RETURN [allMacros[name].cdCellPtr]
END;
IF (coloredMacros[color] # NIL) THEN colored ← coloredMacros[color]
ELSE BEGIN-- This is the real stuff
design: CD.Design ~ silDesigns[mainFile].data;
childAccessible: BOOL;
coloredName: Rope.ROPE ~ IO.PutFR [format: "%g-%g", v1: IO.char[name], v2: IO.atom[CD.LayerKey[colorTable[color]]]];
IF (allMacros[name].cdCellPtr = NIL) THEN BEGIN
IF debug1 THEN
TerminalIO.PutRope [IO.PutFR [" will prepone macro %g\n", IO.char[name]]];
[] ← MacroToObject [allMacros[name], name]
Now allMacros[c].cdCellPtr # NIL
END;
Create a copy of the cell:
[colored, childAccessible] ← CDDirectory.Another1 [me: allMacros[name].cdCellPtr, fromOrNil: design, into: design, friendly: TRUE];
Here the other returned fields are tested for consistency.
IF ((colored = NIL) OR (colored = allMacros[name].cdCellPtr) OR (NOT CDDirectory.Include [design, colored, coloredName]) OR ((~childAccessible) AND (NOT CDDirectory.FixChildren [colored, design]))) THEN BEGIN
TerminalIO.PutRope [IO.PutFR ["Failed to color macro %g\n", IO.char[name]]];
colored ← allMacros[name].cdCellPtr
END
ELSE BEGIN
Colour the cell:
[] ← CDCells.EnumerateInstances [colored, ColorContents];
coloredMacros[color] ← colored
END
END
END; -- ColoredMacro
ExpansionWrapping: PROC [rope: Rope.ROPE, color: Color ← neutralColor] = BEGIN
Makes things easier to understand in the case of recursion.
ExpandRope: PROC [c: CHAR] RETURNS [quit: BOOLFALSE] ~ {
TYPE = ActionType.
cdObPtr: CD.Object; -- object before it is either a cell or an instance
sz, pos: CD.Position;
IF import THEN BEGIN
Imports a string of cells from another library. It is guaranteed that the library is already imported.
cdObPtr ← CDImports.CreateImportFromCache [into: silDesigns[file].data, objectName: Rope.FromChar[c], importeeName: impName];
IF cdObPtr = NIL THEN
CD.Error [ec: other, explanation: "CDImports.CreateImport failed"];
THIS ERROR REALLY MIGHT HAPPEN
END
ELSE -- not import: file macro
A file macro is one that is not in a library file, but rather in the file containing the Sil model. Externally it is referred to as a character of font 4.
cdObPtr ← ColoredMacro [c, color];
sz ← CD.InterestSize [cdObPtr];
pos ← [topLeftPos.x, topLeftPos.y-sz.y];
topLeftPos.x ← topLeftPos.x + sz.x;
[] ← CDCells.IncludeOb [design: silDesigns[file].data, cell: cell, ob: cdObPtr, trans: [pos], mode: dontNotify];
}; -- end ExpandRope
[] ← Rope.Map [base: rope, action: ExpandRope]
END; -- ExpansionWrapping
workingOnMainObject ← (name = ' );
height ← IF workingOnMainObject THEN lambdaAltoScreenHeights
ELSE lambda * (sil.yMax - sil.yMin);
boundingBox ← [x1: lambda*sil.xMin, y1: height - lambda*sil.yMax, x2: lambda*sil.xMax, y2: height - lambda*sil.yMin];
IF workingOnMainObject THEN cell ← NIL
ELSE {
ir: CD.Rect ← [x1: lambda*sil.xMin, y1: height - lambda*sil.yMax, x2: lambda*sil.xMax, y2: height - lambda*sil.yMin];
cell ← CDCells.CreateEmptyCell [];
CDCells.SetInterestRect [silDesigns[file].data, cell, ir];
IF debug2 AND ((name = 'B) OR (name = 'x)) THEN
TerminalIO.PutRope [IO.PutFR ["SetInterestRect to (%g, %g), (%g, %g)\n", IO.int[boundingBox.x1], IO.int[boundingBox.y1], IO.int[boundingBox.x2], IO.int[boundingBox.y2]]]
};
FOR silObj: SilObjectList ← sil.objects, silObj.rest WHILE silObj # NIL DO
size.x ← lambda * (silObj.first.xMax - silObj.first.xMin);
size.y ← lambda * (silObj.first.yMax - silObj.first.yMin);
topLeftPos.x ← position.x ← lambda * silObj.first.xMin;
position.y ← height - lambda * silObj.first.yMax;
topLeftPos.y ← height - lambda * silObj.first.yMin;
SELECT silObj.first.font FROM
IN InternalTrueFonts => {
cdFont: REF CDTexts.FontRec;
er: ImagerFont.Extents;
IF (cellFonts[silObj.first.font][silObj.first.italic].descr = NIL) THEN
MakeCDFont [silObj.first.font, silObj.first.italic];
cdFont ← cellFonts[silObj.first.font][silObj.first.italic].descr;
cdObPtr ← CDTexts.Create [text: silObj.first.value, font: cdFont, layer: colorTable[silObj.first.color]];
IF cdObPtr = NIL THEN CD.Error [ec: other, explanation: "Cannot create text"];
IF debug2 AND ((name = 'B) OR (name = 'x)) THEN
TerminalIO.PutRope [IO.PutFR ["Value: %g, y position: %g\n", IO.rope[silObj.first.value], IO.int[position.y]]];
er ← ImagerFont.RopeBoundingBox [cdFont.font, silObj.first.value];
position.y ← height - lambda * silObj.first.yMin - Real.Round[er.ascent] - cdFont.origin.y;
[] ← CDCells.IncludeOb [design: silDesigns[file].data, cell: cell, ob: cdObPtr, trans: [position], mode: dontNotify]
};
IN InternalFileMacroFonts => {
IF debug1 THEN
TerminalIO.PutRope [IO.PutFR ["%g calls a cell in the same design:\n", IO.char [name]]];
import ← FALSE;
ExpansionWrapping [rope: silObj.first.value, color: silObj.first.color]
};
IN InternalLibraryFile => {
Import cell from specified design.
externalFileNr: LibraryFile; -- Since the exported procedure works with the external library file numbering, we cannot use the internal Sil numbering when we call our procedures.
IF debug1 THEN
TerminalIO.PutRope ["Import of a cell in another design.\n"];
externalFileNr ← silObj.first.font - mainFile;
IF (silDesigns[externalFileNr].data = NIL) THEN [] ← ReadSilLibrary [externalFileNr];
IF NOT silDesigns[externalFileNr].imported THEN {
silDesigns[externalFileNr].imported ← CDImports.LoadAndBindDesign[into: silDesigns[file].data, importeeName: silDesigns[externalFileNr].data.name];
IF NOT silDesigns[externalFileNr].imported THEN
IF file IN MainFile THEN
CD.Error [ec: other, explanation: "Cannot import library"]
ELSE CD.Error [ec: other, explanation: "Library tried to import other library"]
};
impName ← silDesigns[externalFileNr].data.name; -- assigned to a global variable, so that it can be used in the recursion
import ← TRUE;
ExpansionWrapping [rope: silObj.first.value, color: silObj.first.color]
};
IN InternalForegroundBoxFonts => {
cdObPtr ← CDRects.CreateRect [size: size, l: colorTable[silObj.first.color]];
[] ← CDCells.IncludeOb [design: silDesigns[file].data, cell: cell, ob: cdObPtr, trans: [position], mode: dontNotify]
};
IN InternalBackgroundBoxFonts => {
Sil first displays all background rectangles, then the foreground rectangles.
cdObPtr ← CDRects.CreateRect [size: size, l: colorTable[silObj.first.color]];
CDProperties.PutObjectProp [onto: cdObPtr, prop: background, val: background];
[] ← CDCells.IncludeOb [design: silDesigns[file].data, cell: cell, ob: cdObPtr, trans: [position], mode: dontNotify]
};
ENDCASE => CD.Error [explanation: "Invalid case in CDSilConversionImpl.MacroToObject"]
ENDLOOP;
IF NOT workingOnMainObject THEN {
CDCells.SetInterestRect [silDesigns[file].data, cell];
[] ← CDDirectory.Include [design: silDesigns[file].data, object: cell, name: Rope.FromChar[name]];
};
object ← IF workingOnMainObject THEN cdObPtr ELSE cell;
sil.cdCellPtr ← object;
sil.objects ← NIL; -- dispose obsolete space
IF debug1 THEN
TerminalIO.PutRope [IO.PutFR ["Converted object: %g\n", IO.char[name]]];
RETURN [object]
}; -- end MacroToObject
To avoid unnecessary recursion, we convert first the true macros and last the main object.
FOR obj: MacroName IN MacroName DO
IF ((allMacros[obj] # NIL) AND (allMacros[obj].cdCellPtr = NIL)) THEN
The macro is not empty and has not been converted yet.
[] ← MacroToObject [allMacros[obj], obj]
ENDLOOP;
IF ((allMacros[mainObject] # NIL) AND (allMacros[mainObject].cdCellPtr = NIL)) THEN
The mainObject is not empty and has not been converted yet.
[] ← MacroToObject [allMacros[mainObject], mainObject];
IF debugAll THEN TerminalIO.PutRope ["Sil macro file converted to Chipndale model.\n"]
}; -- end ConvertSilFile
ReadSilFile: PROC [fileName: Rope.ROPE] ~ {
Reads a single macro file.
sBlock: SilBlockRef ← NEW [SilBlock];
largesBlock: LargeSilBlockRef ← NEW [LargeSilBlock];
largeFormat: BOOLFALSE;
block: LONG POINTERNIL; -- either sBlock or largesBlock
bytesInSilItemBlock: INTEGER; -- depends on above
AddItemBlockToMacro: PROC [itemBlock: SilObject, name: CHAR]
~ {
m: MacroPtr ← allMacros[name];
IF m = NIL THEN m ← NEW [Macro];
Update bounding box of macro.
m.xMin ← MIN [m.xMin, itemBlock.xMin];
m.yMin ← MIN [m.yMin, itemBlock.yMin];
m.xMax ← MAX [m.xMax, itemBlock.yMax];
m.yMax ← MAX [m.yMax, itemBlock.yMax];
Attach item block to Sil object list
m.objects ← CONS [itemBlock, m.objects];
allMacros[name] ← m
}; -- end AddItemBlockToMacro
ReadItemBlock: PROC [s: IO.STREAM] RETURNS [name: CHAR, itemBlock: SilObject] ~ {
Return the Sil item block which appears next in the file being read. Also, return the item block's name, which will be ' (space) for main pictures, and a printing character for item blocks which are part of macro definitions.
ENABLE IO.EndOfStream => CD.Error [ec: other, explanation: "Unexpected End Of Stream"];
ReadChar: PROC[] RETURNS [c: CHAR] ~ {
This procedure exists so it can be passed to Rope.FromProc, below.
RETURN [s.GetChar[] ];
}; -- end ReadChar
Main of ReadItemBlock
maxRecLen: INTEGER ~ 256; --the longest a record can be (1 byte for its length)
len: INTEGER;
TRUSTED BEGIN
bytesGot: INT ← s.UnsafeGetBlock [
[base: block, startIndex: 0, count: bytesInSilItemBlock]];
IF bytesGot # bytesInSilItemBlock THEN
CD.Error [ec: other, explanation: "Macro file corrupted"]
END;
IF largeFormat THEN BEGIN
name ← IF largesBlock.leftChar = mainElementName THEN ' ELSE largesBlock.rightChar;
name depends on whether is part of main picture ot macro.
state of item block (normal, selected, deleted) is ignored.
itemBlock.xMin ← largesBlock.xMin;
itemBlock.yMin ← largesBlock.yMin;
itemBlock.xMax ← largesBlock.xMax;
itemBlock.yMax ← largesBlock.yMax;
itemBlock.color ← largesBlock.color;
itemBlock.font ← largesBlock.font;
itemBlock.italic ← (largesBlock.italic = 1)
END
ELSE BEGIN
name ← IF sBlock.leftChar = mainElementName THEN ' ELSE sBlock.rightChar;
name depends on whether is part of main picture ot macro.
state of item block (normal, selected, deleted) is ignored.
itemBlock.xMin ← sBlock.xMin;
itemBlock.yMin ← sBlock.yMin;
itemBlock.xMax ← sBlock.xMax;
itemBlock.yMax ← sBlock.yMax;
itemBlock.color ← sBlock.color;
itemBlock.font ← sBlock.font;
itemBlock.italic ← (sBlock.italic = 1)
END;
IF debug0 THEN {
TerminalIO.PutRope [IO.PutFR ["\n%g%g", IO.char[name], IO.int[ORD[name]]]];
{OPEN itemBlock;
TerminalIO.PutRope [IO.PutFR [": xMin = %g, yMin = %g, xMax = %g, yMax = %g. ", IO.int[xMin], IO.int[yMin], IO.int[xMax], IO.int[yMax]]];
TerminalIO.PutRope [IO.PutFR ["Color = %g. Font = %g", IO.int[color], IO.int[font]]];
IF color # 0 THEN TerminalIO.PutRope ["***"];
IF NOT italic THEN TerminalIO.PutRope [", not"];
TerminalIO.PutRope [" italic "]
}
};
IF itemBlock.font IN InternalRopeFonts THEN {
len ← s.GetChar[] - 0C;
itemBlock.value ← Rope.FromProc [len, ReadChar, maxRecLen];
IF debug0 THEN TerminalIO.PutRope [itemBlock.value];
IF len MOD 2 = 0 THEN--Make sure to start next item block on a word boundary
[] ← s.GetChar[]; --Flush the extra slot for a Char
}
}; -- end ReadItemBlock
BEGIN
header1, header2: CHAR;
name: CHAR; itemBlock: SilObject;
s: IO.STREAMFS.StreamOpen [fileName ! FS.Error => IF error.group#bug THEN ERROR fileNotFound [error.explanation]];
IF debugAll THEN {TerminalIO.PutRope [fileName]; TerminalIO.PutRope ["\n"]};
header1 ← s.GetChar[]; header2 ← s.GetChar[];
IF (header1 # checkCodeByte1) THEN ERROR fileNotFound ["File not in Sil format"];
SELECT header2 FROM
unbuiltCheckCodeByte2 =>
IF debugAll THEN TerminalIO.PutRope ["Sil file format OK.\n"];
builtCheckCodeByte2 => TerminalIO.PutRope ["Sil schematic file has been 'build' into a wire-list file via the Build process.\n"];
largeFormatFileByte2 => largeFormat ← TRUE;
ENDCASE => ERROR fileNotFound ["File not in Sil format"];
TRUSTED {block ← IF largeFormat THEN LOOPHOLE [largesBlock] ELSE LOOPHOLE [sBlock]};
bytesInSilItemBlock ← IF largeFormat THEN SIZE [LargeSilBlock] * Basics.bytesPerWord
ELSE SIZE [SilBlock] * Basics.bytesPerWord;
allMacros ← NEW [MacroFile];
WHILE NOT s.EndOf[] DO
[name, itemBlock] ← ReadItemBlock [s];
The item block can now be attached to the relative macro. We cannot work directly with cells, because we need the bounding box of the entire macro to convert the y coordinate.
AddItemBlockToMacro [itemBlock, name]
Each library file contains a synopsis of all macros, stored as a main picture.
ENDLOOP;
IO.Close[s]
END
};-- end ReadSilFile
ReadModel: Commander.CommandProc = BEGIN
ENABLE BEGIN
TerminalIO.UserAbort => {msg ← "user abort"; GOTO failure};
fileNotFound => {msg ← reason; GOTO failure}
END;
list: LIST OF Rope.ROPE;
length: NAT;
name: Rope.ROPE;
[list, length] ← CommandTool.ParseToList [cmd];
IF length = 1 THEN name ← list.first
ELSE BEGIN
result ← $Failure; msg ← "unknown arguments"; TerminalIO.PutRope [msg.Cat ["\n"]];
RETURN
END;
IF convLibEachTime THEN TerminalIO.PutRope ["\nAll libraries will be converted as they are referenced.\n"]
ELSE TerminalIO.PutRope ["\nIf they exist, the libraries specified in the user profile entries 'ChipNDale.ChipNSil.Library%' will be used. Delete them to force the creation of new ones.\n"];
[] ← ReadSilModel [name]; msg ← name.Concat [" converted to ChipNDale"];
Fluch cache to avoid colored cells to be inherited by next design:
FOR color: Color IN Color DO coloredMacros[color] ← NIL ENDLOOP;
For library files this would be
synopsis ← ReadSilLibrary [5];
[] ← CDViewer.CreateViewer [design: synopsis]; CDOps.Redraw [synopsis] -- optional
EXITS
failure => {result ← $Failure; TerminalIO.PutRope [msg.Concat ["\n"]]}
END;
Module initialization.
UserProfile.CallWhenProfileChanges [SetFonts];
UserProfile.CallWhenProfileChanges [FlushLibraries];
IF NOT CDProperties.RegisterProperty [prop: background, registrationKey: $GBB] THEN TerminalIO.PutRope ["CDSilConversionImpl re-executed"]; -- somebody is already using it
Commander.Register [key: "CDReadSil", proc: ReadModel, doc: "Read a SIL model into ChipNSil and save it."]
END.
Edited on January 14, 1985 6:08:21 pm PST, by Beretta
Font handling adapted to new Chipndale interface.
Edited on January 15, 1985 2:14:43 pm PST, by Beretta
Substituted CD.Error by ERROR ABORTED in case the file is not found.
gbb September 4, 1985 4:13:19 pm PDT
Added toggles for behaviour. The strategy on the re-use of library files and on the dialogue about writing them onto disk can be changed by modifying convLibEachTime, verbose and recompiling.
Finding fonts is simpler because of the pseudo-server mechanism introduced with Cedar 6.0.
changes to: CDSilConversionImpl, ReadSilModel, ReadSilLibrary, MakeCDFont.
gbb September 6, 1985 12:19:09 pm PDT
Clean-up
changes to: DIRECTORY, CDSilConversionImpl, TechnologyIsCdsil, ReadSilModel, ReadSilLibrary, SetFonts, FixAttibutes (local of SetFonts), MakeCDFont, MacroToObject (local of ConvertSilFile), ExpandRope (local of MacroToObject, local of ConvertSilFile)
gbb October 14, 1985 4:45:17 pm PDT
The defaults in Cedar Sil have changed: added test for the new large Cedar Sil file format and abort if the case. The large format will have to implemented in some future.
changes to: CDSilConversionImpl: new constant, ReadSilFile: Added test for header2 = largeFormatFileByte2.
gbb March 26, 1986 11:42:18 am PST
Tracked changes for ChipNDale23
gbb April 9, 1986 6:59:19 pm PST
Added ability to read new large Cedar Sil format.
changes to: DIRECTORY, CDSilConversionImpl, CrackNames, TechnologyIsCdsil, ReadSilModel, ReadSilLibrary, SetFonts, FixAttibutes (local of SetFonts), MakeCDFont, ConvertSilFile, MacroToObject (local of ConvertSilFile), ReadSilFile, ReadItemBlock (local of ReadSilFile), ReadChar (local of ReadItemBlock, local of ReadSilFile), ReadModel, SetFonts
gbb July 17, 1986 7:14:38 pm PDT
Registers the procedure to read the fonts from the user profile.
changes to: CDSilConversionImpl: registration, SetFonts: now a call back procedure.
gbb October 28, 1986 12:03:42 pm PST
Unlike Cedar Sil, ChipNSil now abortes if the file is not in Sil format.
changes to: ReadSilFile: Added ERROR ABORTED.
gbb November 25, 1986 2:20:28 pm PST
Converted to Chipndale 24.
Libraries are now forced to be recreated whenever the user profile changes (but not more often as desired by some people, since you have to change the user profile to change a library name. If you wanna play in the interpreter then you can also use it to smash the cache).
gbb November 26, 1986 4:13:08 pm PST
Tried to implement some idiosyncrasies of the latest version of Cedar Sil, but estimated it was too much of a pain in the ass to do it. Search for LIFE IS HARD! if you care to do it.
changes to: DIRECTORY, CDSilConversionImpl, TechnologyIsCdsil, SetFonts, MakeCDFont, ExpandRope (local of MacroToObject, local of ConvertSilFile), MacroToObject (local of ConvertSilFile)
gbb November 27, 1986 5:15:44 pm PST
Did part of it anyway.
changes to: DIRECTORY, CDSilConversionImpl, CrackNames, MakeCDFont, ConvertSilFile, MacroToObject (local of ConvertSilFile), ColoredMacro (local of MacroToObject, local of ConvertSilFile), ColorContents (local of ColoredMacro, local of MacroToObject, local of ConvertSilFile), ExpansionWrapping (local of MacroToObject, local of ConvertSilFile), ExpandRope (local of ExpansionWrapping, local of MacroToObject, local of ConvertSilFile)