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https://github.com/curioustorvald/Terrarum.git
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video card wip for virtual computer
Former-commit-id: 3c71eb0e8614e92e63fd3b29906a3cfd311c916f Former-commit-id: 3472d6eb7d03a29bfd859e9207f76aeb23cef89b
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Song Minjae
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package net.torvald.terrarum.virtualcomputer.peripheral
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import net.torvald.terrarum.gameactors.DecodeTapestry
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import net.torvald.terrarum.gameactors.ai.toLua
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import net.torvald.terrarum.getPixel
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import org.luaj.vm2.Globals
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import org.luaj.vm2.LuaTable
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import org.luaj.vm2.LuaValue
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import org.luaj.vm2.lib.OneArgFunction
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import org.luaj.vm2.lib.ThreeArgFunction
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import org.luaj.vm2.lib.TwoArgFunction
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import org.luaj.vm2.lib.ZeroArgFunction
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import org.newdawn.slick.*
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import java.util.*
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/**
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* Created by SKYHi14 on 2017-02-08.
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*/
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class PeripheralVideoCard(val globals: Globals, val termW: Int = 40, val termH: Int = 25) : Peripheral(globals, "ppu") {
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companion object {
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val blockW = 8
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val blockH = 8
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/**
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* Converts consecutive lua table indexed from 1 as IntArray.
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* The lua table must not contain any nils in the sequence.
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*/
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fun LuaTable.toIntArray(): IntArray {
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val arr = IntArray(this.keyCount())
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var k = 1
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while (true) {
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if (this[k].isnil()) break
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arr[k - 1] = this[k].checkint()
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k += 1
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}
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return arr
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}
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}
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val width = termW * blockW
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val height = termH * blockH
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val vram = VRAM(width, height, 64)
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var fontRom = SpriteSheet("./assets/graphics/fonts/milky.tga", blockW, blockH)
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val CLUT = vram.CLUT
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val coloursCount = CLUT.size
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override fun loadLib() {
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super.loadLib()
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globals["ppu"]["setColor"] = SetColor(this)
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globals["ppu"]["getColor"] = GetColor(this)
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globals["ppu"]["emitChar"] = EmitChar(this)
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}
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fun render(g: Graphics) {
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g.drawImage(vram.background.image, 0f, 0f)
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vram.sprites.forEach {
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if (it.isBackground) {
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val spriteImage = it.data.image.getFlippedCopy(it.hFlip, it.vFlip)
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spriteImage.rotate(90f * it.rotation)
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g.drawImage(spriteImage, it.xpos.toFloat(), it.ypos.toFloat())
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}
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}
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g.drawImage(vram.foreground.image, 0f, 0f)
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vram.sprites.forEach {
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if (!it.isBackground) {
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val spriteImage = it.data.image.getFlippedCopy(it.hFlip, it.vFlip)
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spriteImage.rotate(90f * it.rotation)
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g.drawImage(spriteImage, it.xpos.toFloat(), it.ypos.toFloat())
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}
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}
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}
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private var currentColour = 49 // white
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fun getColor() = currentColour
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fun setColor(value: Int) { currentColour = value }
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fun drawChar(c: Char, x: Int, y: Int, col: Int = currentColour) {
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val glyph = fontRom.getSubImage(c.toInt() % 16, c.toInt() / 16)
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val color = CLUT[col]
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// software render
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for (gy in 0..blockH) {
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for (gx in 0..blockW) {
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val glyAlpha = glyph.getPixel(gx, gy)[3]
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if (glyAlpha > 0) {
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vram.foreground.setRGBA(x * blockW + gx, y * blockH + gy, color.red, color.green, color.blue, 255)
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}
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}
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}
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}
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fun clearBackground() {
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for (i in 0..width * height - 1) {
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vram.background.rgba[i] = if (i % 4 == 3) 0xFF.toByte() else 0x00.toByte()
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}
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}
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fun clearForeground() {
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for (i in 0..width * height - 1) {
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vram.foreground.rgba[i] = if (i % 4 == 3) 0xFF.toByte() else 0x00.toByte()
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}
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}
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fun clearAll() {
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for (i in 0..width * height - 1) {
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vram.background.rgba[i] = if (i % 4 == 3) 0xFF.toByte() else 0x00.toByte()
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vram.foreground.rgba[i] = if (i % 4 == 3) 0xFF.toByte() else 0x00.toByte()
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}
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}
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fun getSprite(index: Int) = vram.sprites[index]
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fun setTextRom(data: Array<BitSet>) {
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TODO("Not implemented")
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}
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fun resetTextRom() {
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fontRom = SpriteSheet("./assets/graphics/fonts/milky.tga", blockW, blockH)
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}
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class SetColor(val videoCard: PeripheralVideoCard) : OneArgFunction() {
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override fun call(arg: LuaValue): LuaValue {
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videoCard.setColor(arg.checkint())
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return LuaValue.NONE
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}
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}
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class GetColor(val videoCard: PeripheralVideoCard) : ZeroArgFunction() {
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override fun call(): LuaValue {
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return videoCard.getColor().toLua()
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}
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}
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class EmitChar(val videoCard: PeripheralVideoCard) : ThreeArgFunction() {
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/** emitChar(char, x, y) */
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override fun call(arg1: LuaValue, arg2: LuaValue, arg3: LuaValue): LuaValue {
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videoCard.drawChar(arg1.checkint().toChar(), arg2.checkint(), arg3.checkint())
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return LuaValue.NONE
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}
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}
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/////////////
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// Sprites //
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/////////////
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fun composeSpriteObject(spriteIndex: Int) : LuaValue {
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val sprite = vram.sprites[spriteIndex]
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val t = LuaTable()
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t["getColFromPal"] = SpriteGetColFromPal(sprite)
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t["setPixel"] = SpriteSetPixel(sprite)
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t["setPalSet"] = SpriteSetPaletteSet(sprite)
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t["setLine"] = SpriteSetLine(sprite)
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t["setAll"] = SpriteSetAll(sprite)
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return t
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}
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private class SpriteGetColFromPal(val sprite: VSprite) : OneArgFunction() {
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override fun call(arg: LuaValue): LuaValue {
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return when (arg.checkint()) {
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0 -> sprite.pal0.toLua()
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1 -> sprite.pal1.toLua()
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2 -> sprite.pal2.toLua()
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3 -> sprite.pal3.toLua()
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else -> throw IndexOutOfBoundsException("Palette size: 4, input: ${arg.checkint()}")
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}
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}
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}
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private class SpriteSetPixel(val sprite: VSprite) : ThreeArgFunction() {
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override fun call(arg1: LuaValue, arg2: LuaValue, arg3: LuaValue): LuaValue {
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sprite.setPixel(arg1.checkint(), arg2.checkint(), arg3.checkint())
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return LuaValue.NONE
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}
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}
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private class SpriteSetPaletteSet(val sprite: VSprite) : OneArgFunction() {
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override fun call(arg: LuaValue): LuaValue {
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sprite.setPaletteSet(arg(1).checkint(), arg(2).checkint(), arg(3).checkint(), arg(4).checkint())
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return LuaValue.NONE
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}
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}
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private class SpriteSetLine(val sprite: VSprite) : TwoArgFunction() {
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override fun call(arg1: LuaValue, arg2: LuaValue): LuaValue {
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sprite.setLine(arg1.checkint(), arg2.checktable().toIntArray())
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return LuaValue.NONE
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}
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}
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private class SpriteSetAll(val sprite: VSprite) : OneArgFunction() {
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override fun call(arg: LuaValue): LuaValue {
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sprite.setAll(arg.checktable().toIntArray())
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return LuaValue.NONE
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}
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}
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}
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class VRAM(pxlWidth: Int, pxlHeight: Int, nSprites: Int) {
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val sprites = Array(nSprites, { VSprite() })
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val background = ImageBuffer(pxlWidth, pxlHeight)
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val foreground = ImageBuffer(pxlWidth, pxlHeight) // text mode glyphs rendered here
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var transparentKey: Int = 15 // black
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val CLUT = DecodeTapestry.colourIndices64
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fun setBackgroundPixel(x: Int, y: Int, color: Int) {
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val col = CLUT[color]
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background.setRGBA(x, y, col.red, col.green, col.blue, 255)
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}
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fun setForegroundPixel(x: Int, y: Int, color: Int) {
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val col = CLUT[color]
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background.setRGBA(x, y, col.red, col.green, col.blue, if (color == transparentKey) 0 else 255)
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}
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}
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class VSprite {
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private val width = 8
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private val height = 8
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val CLUT = DecodeTapestry.colourIndices64
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val data = ImageBuffer(width, height)
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var pal0 = 15 // black
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var pal1 = 56 // light cyan
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var pal2 = 19 // magenta
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var pal3 = 49 // white
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var transparentKey = 15 // black
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var xpos = 0
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var ypos = 0
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var hFlip = false
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var vFlip = false
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var rotation = 0
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var isBackground = false
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var isVisible = false
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fun setPaletteSet(col0: Int, col1: Int, col2: Int, col3: Int) {
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pal0 = col0
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pal1 = col1
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pal2 = col2
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pal3 = col3
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}
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fun getColourFromPalette(swatchNumber: Int): Color {
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val clutIndex = when (swatchNumber) {
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0 -> pal0
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1 -> pal1
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2 -> pal2
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3 -> pal3
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else -> throw IndexOutOfBoundsException("Palette size: 4, input: $swatchNumber")
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}
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return CLUT[clutIndex]
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}
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fun setPixel(x: Int, y: Int, color: Int) {
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val col = getColourFromPalette(color)
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data.setRGBA(x, y, col.red, col.green, col.blue, if (color == transparentKey) 0 else 255)
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}
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fun setLine(y: Int, rowData: IntArray) {
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for (i in 0..width) {
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setPixel(i, y, rowData[i])
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}
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}
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fun setAll(data: IntArray) {
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for (i in 0..width * height) {
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setPixel(i % width, i / width, data[i])
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}
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}
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}
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