DitherImpl:
MONITOR
IMPORTS
AIS, ColorMap, DitherAIS, DisplayMap, FS, Graphics, GraphicsColor, GraphicsOps, IO, Menus, Rope, ViewerOps, ViewerTools =
BEGIN
MapFileStem:Rope.ROPE ← "Std";
FileToDisplay:Rope.ROPE ← NIL;
MapTable: DisplayMap.ColorTable;
MapPal: DisplayMap.PalTable;
DitherPaint: ViewerClasses.PaintProc =
TRUSTED {
IF whatChanged#
NIL THEN
ShowMap[context]
ELSE {
IF FileToDisplay =
NIL THEN
RETURN;
Graphics.SetCP[self:context, x:50, y:0];
Graphics.DrawImage[self:context, image:GraphicsOps.NewAisImage[FileToDisplay], raw:TRUE];
};
};
SetColorMap:
PROCEDURE [PMapFileStem:Rope.
ROPE] = {
fileName:Rope.ROPE ← Rope.Cat[PMapFileStem, ".tab"];
IF FileExists[fileName]
THEN {
MapFileStem ← PMapFileStem;
[MapTable, MapPal] ← DisplayMap.Restore[fileName];
};
FOR palix:
CARDINAL
IN [0..MapPal.size)
DO
OPEN MapPal[palix];
ColorMap.SetRGBColor[palix, r,g,b];
ENDLOOP
};
ShowMap:
PROCEDURE [context:Graphics.Context] = {
palix:CARDINAL ← 0;
FOR i:
CARDINAL
IN [0..7]
DO
FOR j:
CARDINAL
IN [0..7]
DO
FOR k:
CARDINAL
IN [0..3]
DO
OPEN MapPal[palix];
Graphics.SetColor[context, GraphicsColor.RGBToColor[r,g,b]];
Graphics.DrawBox[context, [k*120+j*15+50, i*50+50, k*120+65+j*15, i*50+100]];
palix ← palix + 1;
IF palix=MapPal.size
THEN
RETURN
ENDLOOP;
ENDLOOP;
ENDLOOP;
};
DitherGet: ViewerClasses.GetProc =
TRUSTED {
RETURN [NIL]
};
FileExists:
PROCEDURE [fileName:Rope.ROPE]
RETURNS [answer:
BOOLEAN←TRUE] = {
Check file for being there
s:
IO.STREAM ←
FS.StreamOpen[fileName:fileName
!
FS.Error
=>
TRUSTED {
answer←FALSE;
GOTO notThere;
}];
IO.Close[s];
};
Dither:
ENTRY Menus.MenuProc =
TRUSTED {
filestem:Rope.ROPE ← ViewerTools.GetSelectionContents[];
redFilename:Rope.ROPE ← Rope.Cat[filestem, "-red.ais"];
blueFilename:Rope.ROPE ← Rope.Cat[filestem, "-blu.ais"];
greenFilename:Rope.ROPE ← Rope.Cat[filestem, "-grn.ais"];
FSFilename:Rope.ROPE ← Rope.Cat[filestem, "-", MapFileStem, ".ais"];
ditherViewer.name ← Rope.Cat["Dithering: ", filestem, " - Map: ", MapFileStem];
ViewerOps.PaintViewer[ditherViewer, caption, FALSE, NIL];
IF
NOT FileExists[FSFilename]
THEN {
DitherAIS.Squash[redFilename, greenFilename, blueFilename, FSFilename, MyMap
!
AIS
.Error
=> {
ditherViewer.name ← Rope.Cat[FSFilename, " - Bad file name", " - Map: ", MapFileStem];
ViewerOps.PaintViewer[ditherViewer, caption, FALSE, NIL];
GOTO giveUp}];
};
FileToDisplay ← FSFilename;
ditherViewer.name ← Rope.Cat[FSFilename, " - Map: ", MapFileStem];
ViewerOps.PaintViewer[ditherViewer, client, FALSE, NIL];
ViewerOps.PaintViewer[ditherViewer, caption, FALSE, NIL];
};
Quantize:
ENTRY Menus.MenuProc =
TRUSTED {
filestem:Rope.ROPE ← ViewerTools.GetSelectionContents[];
redFilename:Rope.ROPE ← Rope.Cat[filestem, "-red.ais"];
blueFilename:Rope.ROPE ← Rope.Cat[filestem, "-blu.ais"];
greenFilename:Rope.ROPE ← Rope.Cat[filestem, "-grn.ais"];
FSFilename:Rope.ROPE ← Rope.Cat[filestem, "-Q", MapFileStem, ".ais"];
ditherViewer.name ← Rope.Cat["Quantizing: ", filestem, " - Map: ", MapFileStem];
ViewerOps.PaintViewer[ditherViewer, caption, FALSE, NIL];
IF
NOT FileExists[FSFilename]
THEN {
DitherAIS.Squash[redFilename, greenFilename, blueFilename, FSFilename, MyQuan
!
AIS
.Error
=> {
ditherViewer.name ← Rope.Cat[FSFilename, " - Bad file name", " - Map: ", MapFileStem];
ViewerOps.PaintViewer[ditherViewer, caption, FALSE, NIL];
GOTO giveUp}];
};
FileToDisplay ← FSFilename;
ditherViewer.name ← Rope.Cat[FSFilename, " - Map: ", MapFileStem];
ViewerOps.PaintViewer[ditherViewer, client, FALSE, NIL];
ViewerOps.PaintViewer[ditherViewer, caption, FALSE, NIL];
};
Separate:
ENTRY Menus.MenuProc =
TRUSTED {
filestem:Rope.ROPE ← ViewerTools.GetSelectionContents[];
redFilename:Rope.ROPE ← Rope.Cat[filestem, "fs-red.ais"];
blueFilename:Rope.ROPE ← Rope.Cat[filestem, "fs-blu.ais"];
greenFilename:Rope.ROPE ← Rope.Cat[filestem, "fs-grn.ais"];
FSFilename:Rope.ROPE ← Rope.Cat[filestem, "-", MapFileStem, ".ais"];
ditherViewer.name ← Rope.Cat["Separating: ", filestem, " - Map: ", MapFileStem];
ViewerOps.PaintViewer[ditherViewer, caption, FALSE, NIL];
IF FileExists[FSFilename]
THEN {
DitherAIS.Stretch[redFilename, greenFilename, blueFilename, FSFilename, MyUnMap
!
AIS
.Error
=> {
ditherViewer.name ← Rope.Cat[FSFilename, " - Bad file name", " - Map: ", MapFileStem];
ViewerOps.PaintViewer[ditherViewer, caption, FALSE, NIL];
GOTO giveUp}];
};
ditherViewer.name ← Rope.Cat[FSFilename, " - Map: ", MapFileStem];
ViewerOps.PaintViewer[ditherViewer, caption, FALSE, NIL];
};
QSeparate:
ENTRY Menus.MenuProc =
TRUSTED {
filestem:Rope.ROPE ← ViewerTools.GetSelectionContents[];
redFilename:Rope.ROPE ← Rope.Cat[filestem, "Qfs-red.ais"];
blueFilename:Rope.ROPE ← Rope.Cat[filestem, "Qfs-blu.ais"];
greenFilename:Rope.ROPE ← Rope.Cat[filestem, "Qfs-grn.ais"];
FSFilename:Rope.ROPE ← Rope.Cat[filestem, "-Q", MapFileStem, ".ais"];
ditherViewer.name ← Rope.Cat["Separating: ", filestem, " - Map: ", MapFileStem];
ViewerOps.PaintViewer[ditherViewer, caption, FALSE, NIL];
IF FileExists[FSFilename]
THEN {
DitherAIS.Stretch[redFilename, greenFilename, blueFilename, FSFilename, MyUnMap
!
AIS
.Error
=> {
ditherViewer.name ← Rope.Cat[FSFilename, " - Bad file name", " - Map: ", MapFileStem];
ViewerOps.PaintViewer[ditherViewer, caption, FALSE, NIL];
GOTO giveUp}];
};
ditherViewer.name ← Rope.Cat[FSFilename, " - Map: ", MapFileStem];
ViewerOps.PaintViewer[ditherViewer, caption, FALSE, NIL];
};
Show:
ENTRY Menus.MenuProc =
TRUSTED {
filestem:Rope.ROPE ← ViewerTools.GetSelectionContents[];
FSFilename:Rope.ROPE ← Rope.Cat[filestem, "-", MapFileStem, ".ais"];
IF FileExists[FSFilename]
THEN {
FileToDisplay ← FSFilename;
ditherViewer.name ← Rope.Cat[FileToDisplay, " - Map: ", MapFileStem];
ViewerOps.PaintViewer[ditherViewer, all, FALSE, NIL];
}
ELSE {
ditherViewer.name ← Rope.Cat[FSFilename, " - Map: ", MapFileStem];
ViewerOps.PaintViewer[ditherViewer, caption, FALSE, NIL];
}
};
SetMap:Menus.MenuProc =
TRUSTED {
SetColorMap[ViewerTools.GetSelectionContents[]];
ditherViewer.name ← Rope.Cat[FileToDisplay, " - Map: ", MapFileStem];
ViewerOps.PaintViewer[ditherViewer, all, FALSE, $MAP];
};
MyMap: DitherAIS.UserMapProc = {
rb,gb,bb:DisplayMap.ColorMapSize;
palix ← DisplayMap.GetIndex[r, g, b, MapTable];
[rb,gb,bb] ← ColorMap.GetColor[palix]; -- ought to use the table
re ← r - rb;
ge ← g - gb;
be ← b - bb;
};
MyQuan: DitherAIS.UserMapProc = {
rb,gb,bb:DisplayMap.ColorMapSize;
palix ← DisplayMap.GetIndex[r, g, b, MapTable];
[rb,gb,bb] ← ColorMap.GetColor[palix]; -- ought to use the table
re ← 0;
ge ← 0;
be ← 0;
};
MyUnMap: DitherAIS.UserUnmapProc = {
[r, g, b] ← ColorMap.GetColor[palix]; -- ought to use the table
};
MAIN PROGRAM STARTS HERE
DithertestClass:ViewerClasses.ViewerClass ← NEW[ViewerClasses.ViewerClassRec];
ditherViewer:ViewerClasses.Viewer;
DithertestClass.paint ← DitherPaint;
DithertestClass.get ← DitherGet;
ViewerOps.RegisterViewerClass[$Dither, DithertestClass];
SetColorMap[MapFileStem];
ditherViewer ← ViewerOps.CreateViewer[flavor:$Dither, info:[name:"Dither test", column:color], paint:FALSE];
ditherViewer.menu ← Menus.CreateMenu[1];
Menus.AppendMenuEntry[menu:ditherViewer.menu, entry:Menus.CreateEntry [name:"Dither", proc:Dither, fork:TRUE, documentation: "Create 8 bit dithered rgb file from 8-bit r,g and b files"], line:0];
Menus.AppendMenuEntry[menu:ditherViewer.menu, entry:Menus.CreateEntry [name:"Quantize", proc:Quantize, fork:TRUE, documentation: "Create 8 bit rgb file from 8-bit r,g and b files"], line:0];
Menus.AppendMenuEntry[menu:ditherViewer.menu, entry:Menus.CreateEntry [name:"DStretch", proc:Separate, fork:TRUE, documentation: "Create 8-bit r,g and b files from 8 bit rgb file"], line:0];
Menus.AppendMenuEntry[menu:ditherViewer.menu, entry:Menus.CreateEntry [name:"QStretch", proc:QSeparate, fork:TRUE, documentation: "Create 8-bit r,g and b files from 8 bit rgb file"], line:0];
Menus.AppendMenuEntry[menu:ditherViewer.menu, entry:Menus.CreateEntry [name:"Show", proc:Show, fork:TRUE, documentation: "Show rgb file"], line:0];
Menus.AppendMenuEntry[menu:ditherViewer.menu, entry:Menus.CreateEntry [name:"ShowMap", proc:SetMap, fork:FALSE, documentation: "Display the current color map"], line:0];
ViewerOps.ComputeColumn[column: ditherViewer.column];
END.