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238 changes: 238 additions & 0 deletions
238
...d/src/main/kotlin/com/github/c64lib/rbt/processors/charpad/usecase/post6/CTM9Processor.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,238 @@ | ||
| /* | ||
| MIT License | ||
| Copyright (c) 2018-2023 c64lib: The Ultimate Commodore 64 Library | ||
| Copyright (c) 2018-2023 Maciej Małecki | ||
| 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 | ||
| AUTHORS OR COPYRIGHT HOLDERS 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. | ||
| */ | ||
| package com.github.c64lib.rbt.processors.charpad.usecase.post6 | ||
|
|
||
| import com.github.c64lib.rbt.processors.charpad.domain.CTMHeader | ||
| import com.github.c64lib.rbt.processors.charpad.domain.ColouringMethod | ||
| import com.github.c64lib.rbt.processors.charpad.domain.Dimensions | ||
| import com.github.c64lib.rbt.processors.charpad.domain.InvalidCTMFormatException | ||
| import com.github.c64lib.rbt.processors.charpad.domain.ScreenMode | ||
| import com.github.c64lib.rbt.processors.charpad.domain.colouringMethodFrom | ||
| import com.github.c64lib.rbt.processors.charpad.domain.screenModeFrom | ||
| import com.github.c64lib.rbt.processors.charpad.usecase.ProcessCharpadUseCase | ||
| import com.github.c64lib.rbt.shared.binutils.combineNybbles | ||
| import com.github.c64lib.rbt.shared.binutils.convertToHiNybbles | ||
| import com.github.c64lib.rbt.shared.binutils.isolateEachNth | ||
| import com.github.c64lib.rbt.shared.binutils.toUnsignedByte | ||
| import com.github.c64lib.rbt.shared.processor.InputByteStream | ||
| import kotlin.experimental.and | ||
|
|
||
| internal class CTM9Processor(charpadProcessor: ProcessCharpadUseCase) : | ||
| BlockBasedCTMProcessor(charpadProcessor) { | ||
|
|
||
| override fun process(inputByteStream: InputByteStream) { | ||
|
|
||
| blockCounter = 0 | ||
|
|
||
| val header = readHeader(inputByteStream) | ||
| val colouringMethod = colouringMethodFrom(header.colouringMethod) | ||
| val screenMode = screenModeFrom(header.displayMode) | ||
| val (lo, hi) = screenMode.getPaletteIndexes() | ||
| val primaryColorIndex = screenMode.getPrimaryColorIndex() | ||
|
|
||
| val coloursSize = | ||
| when (screenMode) { | ||
| ScreenMode.BitmapHires -> 2 | ||
| ScreenMode.BitmapMulticolor -> 3 | ||
| else -> 1 | ||
| } | ||
|
|
||
| // block 0 charset | ||
| val numChars = processCharsetBlock(inputByteStream) | ||
|
|
||
| // block 1 char materials | ||
| val charMaterialData = processCharsetMaterialsBlock(numChars, inputByteStream) | ||
|
|
||
| if (colouringMethod == ColouringMethod.PerChar) { | ||
| // block 2 char colours | ||
| readBlockMarker(inputByteStream) | ||
| if (numChars > 0) { | ||
| val charColoursData = inputByteStream.read(numChars * coloursSize) | ||
| processCharpadUseCase.processCharColours { | ||
| it.write(isolateEachNth(charColoursData, coloursSize, primaryColorIndex)) | ||
| } | ||
| processCharpadUseCase.processCharScreenColours { | ||
| it.write( | ||
| combineNybbles( | ||
| isolateEachNth(charColoursData, coloursSize, lo), | ||
| isolateEachNth(charColoursData, coloursSize, hi), | ||
| ), | ||
| ) | ||
| } | ||
| if (charMaterialData != null) { | ||
| processCharpadUseCase.processCharAttributes { | ||
| it.write( | ||
| combineNybbles( | ||
| isolateEachNth(charColoursData, coloursSize, primaryColorIndex), | ||
| charMaterialData, | ||
| ), | ||
| ) | ||
| } | ||
| } | ||
| } | ||
| } else if (charMaterialData != null) { | ||
| processCharpadUseCase.processCharAttributes { it.write(convertToHiNybbles(charMaterialData)) } | ||
| } | ||
|
|
||
| var tileWidth: Byte? = null | ||
| var tileHeight: Byte? = null | ||
|
|
||
| if (header.flags and CTM8Flags.TileSys.bit != 0.toByte()) { | ||
| // block n tiles | ||
| val (numTiles, width, height) = processTilesBlock(inputByteStream) | ||
| tileWidth = width | ||
| tileHeight = height | ||
| ensureTileSizeLimits(tileWidth, tileHeight) | ||
|
|
||
| if (colouringMethodFrom(header.colouringMethod) == ColouringMethod.PerTile) { | ||
| // block n tile colours | ||
| readBlockMarker(inputByteStream) | ||
| val tileColoursData = inputByteStream.read(numTiles * coloursSize) | ||
| processCharpadUseCase.processTileColours { | ||
| it.write(isolateEachNth(tileColoursData, coloursSize, primaryColorIndex)) | ||
| } | ||
| processCharpadUseCase.processTileScreenColours { | ||
| it.write( | ||
| combineNybbles( | ||
| isolateEachNth(tileColoursData, coloursSize, lo), | ||
| isolateEachNth(tileColoursData, coloursSize, hi), | ||
| ), | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| // block n tile tags | ||
| processTilesTagsBlock(numTiles, inputByteStream) | ||
| // block n tile names | ||
| processTilesNamesBlock(numTiles, inputByteStream) | ||
| } | ||
|
|
||
| // block n map | ||
| val (mapWidth, mapHeight) = processMapBlock(inputByteStream) | ||
|
|
||
| // all data here, process header | ||
| processCharpadUseCase.processHeader { | ||
| it.write( | ||
| header.toHeader(tileWidth, tileHeight, mapWidth, mapHeight), | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| private fun ensureTileSizeLimits(tileWidth: Byte, tileHeight: Byte) { | ||
| val limit = 10 | ||
| if (tileWidth > limit) { | ||
| throw InvalidCTMFormatException("Tile width too big: $tileWidth.") | ||
| } | ||
| if (tileHeight > limit) { | ||
| throw InvalidCTMFormatException("Tile height too big: $tileHeight.") | ||
| } | ||
| } | ||
|
|
||
| private fun readHeader(inputByteStream: InputByteStream): CTM9Header { | ||
| val displayMode = inputByteStream.readByte() | ||
| val colouringMethod = inputByteStream.readByte() | ||
| val flags = inputByteStream.readByte() | ||
|
|
||
| val flexigridWidth = inputByteStream.readByte() + 256 * inputByteStream.readByte() | ||
| val flexigridHeight = inputByteStream.readByte() + 256 * inputByteStream.readByte() | ||
| inputByteStream.readByte() // ignore | ||
|
|
||
| val screenColor = inputByteStream.readByte() | ||
| val multicolor1 = inputByteStream.readByte() | ||
| val multicolor2 = inputByteStream.readByte() | ||
| val backgroundColor4 = inputByteStream.readByte() | ||
| val colorBase0 = inputByteStream.readByte() | ||
| val colorBase1 = inputByteStream.readByte() | ||
| val colorBase2 = inputByteStream.readByte() | ||
| val colorBase3: Byte = 0 | ||
|
|
||
| return CTM9Header( | ||
| displayMode = displayMode, | ||
| screenColour = screenColor, | ||
| multicolour1 = multicolor1, | ||
| multicolour2 = multicolor2, | ||
| backgroundColour4 = backgroundColor4, | ||
| charColour0 = colorBase0, | ||
| charColour1 = colorBase1, | ||
| charColour2 = colorBase2, | ||
| charColour3 = colorBase3, | ||
| colouringMethod = colouringMethod, | ||
| flags = flags, | ||
| flexigridWidth = flexigridWidth, | ||
| flexigridHeight = flexigridHeight, | ||
| ) | ||
| } | ||
|
|
||
| private fun ScreenMode.getPaletteIndexes(): ScreenMemoryPalette = | ||
| when (this) { | ||
| ScreenMode.TextHires, | ||
| ScreenMode.TextMulticolor, | ||
| ScreenMode.TextExtendedBackground -> ScreenMemoryPalette(0, 0) | ||
| ScreenMode.BitmapHires -> ScreenMemoryPalette(0, 1) | ||
| ScreenMode.BitmapMulticolor -> ScreenMemoryPalette(1, 2) | ||
| } | ||
|
|
||
| private fun ScreenMode.getPrimaryColorIndex(): Int = 0 | ||
| } | ||
|
|
||
| internal enum class CTM9Flags(val bit: Byte) { | ||
| TileSys(0x01) | ||
| } | ||
|
|
||
| internal data class CTM9Header( | ||
| val displayMode: Byte, | ||
| val screenColour: Byte, | ||
| val multicolour1: Byte, | ||
| val multicolour2: Byte, | ||
| val backgroundColour4: Byte, | ||
| val charColour0: Byte, | ||
| val charColour1: Byte, | ||
| val charColour2: Byte, | ||
| val charColour3: Byte, | ||
| val colouringMethod: Byte, | ||
| val flags: Byte, | ||
| val flexigridWidth: Int, | ||
| val flexigridHeight: Int, | ||
| ) { | ||
|
|
||
| fun toHeader(tileWidth: Byte?, tileHeight: Byte?, mapWidth: Int, mapHeight: Int): CTMHeader = | ||
| CTMHeader( | ||
| version = 9, | ||
| backgroundColour0 = screenColour, | ||
| backgroundColour1 = multicolour1, | ||
| backgroundColour2 = multicolour2, | ||
| backgroundColour3 = backgroundColour4, | ||
| charColour = charColour3, | ||
| colouringMethod = colouringMethodFrom(colouringMethod), | ||
| screenMode = screenModeFrom(displayMode), | ||
| tileDimensions = | ||
| if (flags and CTM7Flags.TileSys.bit != 0.toUnsignedByte()) { | ||
| Dimensions(tileWidth!!, tileHeight!!) | ||
| } else { | ||
| null | ||
| }, | ||
| mapDimensions = Dimensions(mapWidth, mapHeight), | ||
| ) | ||
| } |