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* Moved more types into their own files. * Simplified polygon by using only one Polygon option type. * Moved bitmap reading code into a reader extension.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,143 @@ | ||
| // | ||
| // QuickDrawBitMap.swift | ||
| // QuickDrawViewer | ||
| // | ||
| // Created by Matthias Wiesmann on 17.04.2024. | ||
| // | ||
|
|
||
| import Foundation | ||
|
|
||
| /// Packing format used in QuickDraw PixMaps | ||
| enum QDPackType : UInt16 { | ||
| case defaultPack = 0; | ||
| case noPack = 1; | ||
| case removePadByte = 2; | ||
| case pixelRunLength = 3; | ||
| case componentRunLength = 4; | ||
| } | ||
|
|
||
| /// Add-on information for a BitMap that is actually a Pixmap. | ||
| /// Confusingly, this is called `PixMap` record in Inside Quickdraw,. | ||
| /// even though there is no actual pixel data. | ||
| class QDPixMapInfo : CustomStringConvertible { | ||
| public var description: String { | ||
| var result = "PixMapInfo version: \(version) pack-size: \(packSize) "; | ||
| result += "pack-type: \(packType) "; | ||
| if resolution != nil { | ||
| result += "resolution: \(resolution!) "; | ||
| } | ||
| result += "pixel type: \(pixelType) "; | ||
| result += "pixel size: \(pixelSize) "; | ||
| result += "composant count: \(cmpCount) "; | ||
| result += "composant size: \(cmpSize) "; | ||
| result += "plane byte: \(planeByte) "; | ||
| result += "clut Id: \(clutId) "; | ||
| if clut != nil { | ||
| result += "clut: \(clut!)"; | ||
| } | ||
| return result; | ||
| } | ||
|
|
||
| var version : Int = 0; | ||
| var packType : QDPackType = QDPackType.defaultPack; | ||
| var packSize : Int = 0; | ||
| var resolution : QDResolution?; | ||
| var pixelType : Int = 0; | ||
| var pixelSize : Int = 0; | ||
| var cmpCount : Int = 0; | ||
| var cmpSize : Int = 0; | ||
| var planeByte : Int64 = 0; | ||
| var clutId : Int32 = 0; | ||
| var clutSeed : MacTypeCode = MacTypeCode.zero; | ||
| var clut : QDColorTable?; | ||
| } | ||
|
|
||
|
|
||
| class QDBitMapInfo : CustomStringConvertible, PixMapMetadata { | ||
|
|
||
| init(isPacked: Bool) { | ||
| self.isPacked = isPacked; | ||
| } | ||
|
|
||
| var hasShortRows : Bool { | ||
| return rowBytes < 250; | ||
| } | ||
|
|
||
| let isPacked : Bool; | ||
| var rowBytes : Int = 0; | ||
| var bounds : QDRect = QDRect.empty; | ||
| var srcRect : QDRect?; | ||
| var dstRect : QDRect?; | ||
| var mode : QuickDrawMode = QuickDrawMode.defaultMode; | ||
| var data : [UInt8] = [UInt8](); | ||
| var pixMapInfo : QDPixMapInfo?; | ||
|
|
||
| var destinationRect : QDRect { | ||
| return dstRect!; | ||
| } | ||
|
|
||
| var dimensions: QDDelta { | ||
| return bounds.dimensions; | ||
| } | ||
|
|
||
| var height : Int { | ||
| return bounds.dimensions.dv.rounded; | ||
| } | ||
|
|
||
| var cmpSize : Int { | ||
| if let pix_info = pixMapInfo { | ||
| return pix_info.cmpSize; | ||
| } | ||
| return 1; | ||
| } | ||
|
|
||
| var pixelSize : Int { | ||
| if let pix_info = pixMapInfo { | ||
| return pix_info.pixelSize; | ||
| } | ||
| return 1; | ||
| } | ||
|
|
||
| var clut : QDColorTable? { | ||
| if let pix_info = pixMapInfo { | ||
| return pix_info.clut!; | ||
| } | ||
| return QDColorTable.palette1; | ||
| } | ||
|
|
||
| public var description : String { | ||
| let pm = describePixMap(self); | ||
| var result = "Bitmap info [\(pm) packed: \(isPacked) "; | ||
| result += "Bounds \(bounds) " | ||
| if srcRect != nil { | ||
| result += "src: \(srcRect!) "; | ||
| } | ||
| if dstRect != nil { | ||
| result += "dst: \(dstRect!) "; | ||
| } | ||
| result += "Mode: \(mode)]"; | ||
| if let pixmap = pixMapInfo { | ||
| result += "Pixmap: \(pixmap)]"; | ||
| } | ||
| return result; | ||
| } | ||
| } | ||
|
|
||
| extension QuickDrawDataReader { | ||
| func readPixMapInfo() throws -> QDPixMapInfo { | ||
| let pixMapInfo = QDPixMapInfo(); | ||
| pixMapInfo.version = Int(try readUInt16()); | ||
| pixMapInfo.packType = QDPackType(rawValue:try readUInt16())!; | ||
| pixMapInfo.packSize = Int(try readUInt32()); | ||
| pixMapInfo.resolution = try readResolution(); | ||
| pixMapInfo.pixelType = Int(try readUInt16()); | ||
| pixMapInfo.pixelSize = Int(try readUInt16()); | ||
| pixMapInfo.cmpCount = Int(try readUInt16()); | ||
| pixMapInfo.cmpSize = Int(try readUInt16()); | ||
| pixMapInfo.planeByte = Int64(try readUInt32()); | ||
| pixMapInfo.clutId = try readInt32(); | ||
| pixMapInfo.clutSeed = try readType(); | ||
| return pixMapInfo; | ||
| } | ||
| } | ||
|
|
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