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sorta working unsafesvecarray; and then issue #26 is fucking shit up

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This commit is contained in:
minjaesong
2019-06-22 04:16:03 +09:00
parent 79b317d9e1
commit 88a288243c
7 changed files with 283 additions and 78 deletions
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2
.idea/misc.xml generated
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@@ -38,7 +38,7 @@
<property name="caretWidth" class="java.lang.Integer" />
</properties>
</component>
<component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="false" project-jdk-name="11" project-jdk-type="JavaSDK">
<component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="false" project-jdk-name="1.8" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>

66
src/net/torvald/UnsafePtr.kt Normal file
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@@ -0,0 +1,66 @@
package net.torvald
import sun.misc.Unsafe
/**
* Created by minjaesong on 2019-06-21.
*/
object UnsafeHelper {
internal val unsafe: Unsafe
init {
val unsafeConstructor = Unsafe::class.java.getDeclaredConstructor()
unsafeConstructor.isAccessible = true
unsafe = unsafeConstructor.newInstance()
}
fun allocate(size: Long): UnsafePtr {
val ptr = unsafe.allocateMemory(size)
return UnsafePtr(ptr, size)
}
}
/**
* To allocate a memory, use UnsafeHelper.allocate(long)
*/
class UnsafePtr(val ptr: Long, val allocSize: Long) {
var destroyed = false
private set
fun destroy() {
if (!destroyed) {
UnsafeHelper.unsafe.freeMemory(ptr)
destroyed = true
}
}
private inline fun checkNullPtr(index: Long) {
if (destroyed) throw NullPointerException()
// OOB Check: debugging purposes only -- comment out for the production
//if (index !in 0 until allocSize) throw NullPointerException("Out of bounds: $index; alloc size: $allocSize")
}
operator fun get(index: Long): Byte {
checkNullPtr(index)
return UnsafeHelper.unsafe.getByte(ptr + index)
}
fun getFloat(index: Long): Float {
checkNullPtr(index)
return UnsafeHelper.unsafe.getFloat(ptr + index)
}
operator fun set(index: Long, value: Byte) {
checkNullPtr(index)
UnsafeHelper.unsafe.putByte(ptr + index, value)
}
fun setFloat(index: Long, value: Float) {
checkNullPtr(index)
UnsafeHelper.unsafe.putFloat(ptr + index, value)
}
}

41
src/net/torvald/gdx/graphics/UnsafeCvecArray.kt Normal file
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@@ -0,0 +1,41 @@
package net.torvald.gdx.graphics
import net.torvald.UnsafeHelper
/**
* Created by minjaesong on 2019-06-21.
*/
internal class UnsafeCvecArray(val width: Int, val height: Int) {
val TOTAL_SIZE_IN_BYTES = 16L * width * height
val array = UnsafeHelper.allocate(TOTAL_SIZE_IN_BYTES)
private inline fun toAddr(x: Int, y: Int) = 16L * (y * width + x)
fun zerofill() = UnsafeHelper.unsafe.setMemory(this.array.ptr, TOTAL_SIZE_IN_BYTES, 0)
init {
zerofill()
}
fun getR(x: Int, y: Int) = array.getFloat(toAddr(x, y))
fun getG(x: Int, y: Int) = array.getFloat(toAddr(x, y) + 4)
fun getB(x: Int, y: Int) = array.getFloat(toAddr(x, y) + 8)
fun getA(x: Int, y: Int) = array.getFloat(toAddr(x, y) + 12)
fun setR(x: Int, y: Int, value: Float) { array.setFloat(toAddr(x, y), value) }
fun setG(x: Int, y: Int, value: Float) { array.setFloat(toAddr(x, y) + 4, value) }
fun setB(x: Int, y: Int, value: Float) { array.setFloat(toAddr(x, y) + 8, value) }
fun setA(x: Int, y: Int, value: Float) { array.setFloat(toAddr(x, y) + 12, value) }
fun max(x: Int, y: Int, other: Cvec) {
setR(x, y, maxOf(getR(x, y), other.r))
setG(x, y, maxOf(getG(x, y), other.g))
setB(x, y, maxOf(getB(x, y), other.b))
setA(x, y, maxOf(getA(x, y), other.a))
}
fun destroy() = this.array.destroy()
}

7
src/net/torvald/terrarum/gameworld/BlockLayer.kt
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@@ -22,7 +22,7 @@ open class BlockLayer(val width: Int, val height: Int) : Disposable {
private var layerPtr = unsafe.allocateMemory(width * height * BYTES_PER_BLOCK.toLong())
init {
unsafe.setMemory(layerPtr, width * height * BYTES_PER_BLOCK.toLong(), 0) // sometimes does not work?!
unsafe.setMemory(layerPtr, width * height * BYTES_PER_BLOCK.toLong(), 0) // does reliably fill the memory with zeroes
}
/**
@@ -89,12 +89,9 @@ open class BlockLayer(val width: Int, val height: Int) : Disposable {
}
override fun next(): Byte {
val y = iteratorCount / width
val x = iteratorCount % width
// advance counter
iteratorCount += 1
return unsafe.getByte(layerPtr + 1)
return unsafe.getByte(layerPtr + iteratorCount)
}
}
}

12
src/net/torvald/terrarum/gameworld/GameWorld.kt
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@@ -165,17 +165,13 @@ open class GameWorld : Disposable {
private fun coerceXY(x: Int, y: Int) = (x fmod width) to (y.coerceIn(0, height - 1))
fun getTileFromWall(x: Int, y: Int): Int {
val (x, y) = coerceXY(x, y)
if (y !in 0 until height) throw Error("Y coord out of world boundary: $y")
fun getTileFromWall(rawX: Int, rawY: Int): Int {
val (x, y) = coerceXY(rawX, rawY)
return layerWall.unsafeGetTile(x, y)
}
fun getTileFromTerrain(x: Int, y: Int): Int {
val (x, y) = coerceXY(x, y)
if (y !in 0 until height) throw Error("Y coord out of world boundary: $y")
fun getTileFromTerrain(rawX: Int, rawY: Int): Int {
val (x, y) = coerceXY(rawX, rawY)
return layerTerrain.unsafeGetTile(x, y)
}

49
src/net/torvald/terrarum/tests/UnsafeTest.kt Normal file
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@@ -0,0 +1,49 @@
package net.torvald.terrarum.tests
import net.torvald.terrarum.gameworld.toUint
import sun.misc.Unsafe
/**
* Created by minjaesong on 2019-06-22.
*/
class UnsafeTest {
private val unsafe: Unsafe
init {
val unsafeConstructor = Unsafe::class.java.getDeclaredConstructor()
unsafeConstructor.isAccessible = true
unsafe = unsafeConstructor.newInstance()
}
private val memsize = 2048L // must be big enough value so that your OS won't always return zero-filled pieces
fun main() {
val ptr = unsafe.allocateMemory(memsize)
printDump(ptr)
unsafe.setMemory(ptr, memsize, 0x00.toByte())
printDump(ptr)
for (k in 0 until memsize step 4) {
unsafe.putInt(ptr + k, 0xcafebabe.toInt())
}
printDump(ptr)
unsafe.freeMemory(ptr)
}
fun printDump(ptr: Long) {
println("MINIMINIDUMP START")
for (i in 0 until memsize) {
val b = unsafe.getByte(ptr + i).toUint().toString(16).padStart(2, '0')
print("$b ")
}
println("\nMINIMINIDUMP END")
}
}
fun main(args: Array<String>) {
UnsafeTest().main()
}

184
src/net/torvald/terrarum/worlddrawer/LightmapRendererNew.kt
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@@ -6,13 +6,14 @@ import com.badlogic.gdx.graphics.Texture
import com.badlogic.gdx.graphics.glutils.ShaderProgram
import com.jme3.math.FastMath
import net.torvald.gdx.graphics.Cvec
import net.torvald.gdx.graphics.UnsafeCvecArray
import net.torvald.terrarum.*
import net.torvald.terrarum.AppLoader.printdbg
import net.torvald.terrarum.blockproperties.Block
import net.torvald.terrarum.blockproperties.BlockCodex
import net.torvald.terrarum.blockproperties.Fluid
import net.torvald.terrarum.concurrent.sliceEvenly
import net.torvald.terrarum.concurrent.ThreadParallel
import net.torvald.terrarum.concurrent.sliceEvenly
import net.torvald.terrarum.gameactors.ActorWBMovable
import net.torvald.terrarum.gameactors.ActorWithBody
import net.torvald.terrarum.gameactors.Luminous
@@ -47,16 +48,18 @@ object LightmapRenderer {
if (this.world != world) {
printdbg(this, "World change detected -- old world: ${this.world.hashCode()}, new world: ${world.hashCode()}")
for (y in 0 until LIGHTMAP_HEIGHT) {
/*for (y in 0 until LIGHTMAP_HEIGHT) {
for (x in 0 until LIGHTMAP_WIDTH) {
lightmap[y][x] = colourNull
}
}
}*/
/*for (i in 0 until lightmap.size) {
lightmap[i] = colourNull
}*/
lightmap.zerofill()
makeUpdateTaskList()
}
}
@@ -84,7 +87,8 @@ object LightmapRenderer {
*/
// it utilises alpha channel to determine brightness of "glow" sprites (so that alpha channel works like UV light)
// will use array of array from now on because fuck it; debug-ability > slight framerate drop. 2019-06-01
private var lightmap: Array<Array<Cvec>> = Array(LIGHTMAP_HEIGHT) { Array(LIGHTMAP_WIDTH) { Cvec(0) } } // Can't use framebuffer/pixmap -- this is a fvec4 array, whereas they are ivec4.
private var lightmap: UnsafeCvecArray = UnsafeCvecArray(LIGHTMAP_WIDTH, LIGHTMAP_HEIGHT)
//private var lightmap: Array<Array<Cvec>> = Array(LIGHTMAP_HEIGHT) { Array(LIGHTMAP_WIDTH) { Cvec(0) } } // Can't use framebuffer/pixmap -- this is a fvec4 array, whereas they are ivec4.
//private var lightmap: Array<Cvec> = Array(LIGHTMAP_WIDTH * LIGHTMAP_HEIGHT) { Cvec(0) } // Can't use framebuffer/pixmap -- this is a fvec4 array, whereas they are ivec4.
private val lanternMap = HashMap<BlockAddress, Cvec>((Terrarum.ingame?.ACTORCONTAINER_INITIAL_SIZE ?: 2) * 4)
@@ -124,15 +128,34 @@ object LightmapRenderer {
* @param y world tile coord
*/
internal fun getLight(x: Int, y: Int): Cvec? {
val col = getLightInternal(x, y)
if (col == null) {
if (!inBounds(x, y)) {
return null
}
else {
return Cvec(col.r * MUL_FLOAT, col.g * MUL_FLOAT, col.b * MUL_FLOAT, col.a * MUL_FLOAT)
val x = x.convX()
val y = y.convY()
return Cvec(
lightmap.getR(x, y) * MUL_FLOAT,
lightmap.getG(x, y) * MUL_FLOAT,
lightmap.getB(x, y) * MUL_FLOAT,
lightmap.getA(x, y) * MUL_FLOAT
)
}
}
/**
* @param x world coord
* @param y world coord
*/
private fun inBounds(x: Int, y: Int) =
(y - for_y_start + overscan_open in 0 until LIGHTMAP_HEIGHT &&
x - for_x_start + overscan_open in 0 until LIGHTMAP_WIDTH)
/** World coord to array coord */
private inline fun Int.convX() = this - for_x_start + overscan_open
/** World coord to array coord */
private inline fun Int.convY() = this - for_y_start + overscan_open
/**
* Internal level (0..1)
*
@@ -140,7 +163,7 @@ object LightmapRenderer {
* @param y world tile coord
*/
// TODO in regard of "colour math against integers", return Int?
private fun getLightInternal(x: Int, y: Int): Cvec? {
/*private fun getLightInternal(x: Int, y: Int): Cvec? {
if (y - for_y_start + overscan_open in 0 until LIGHTMAP_HEIGHT &&
x - for_x_start + overscan_open in 0 until LIGHTMAP_WIDTH) {
@@ -153,7 +176,7 @@ object LightmapRenderer {
}
return null
}
}*/
/**
@@ -168,7 +191,7 @@ object LightmapRenderer {
* @param colour Cvec to write
* @param applyFun A function ```foo(old_colour, given_colour)```
*/
private fun setLightOf(list: Array<Array<Cvec>>, x: Int, y: Int, colour: Cvec, applyFun: (Cvec, Cvec) -> Cvec = { _, c -> c }) {
/*private fun setLightOf(list: Array<Array<Cvec>>, x: Int, y: Int, colour: Cvec, applyFun: (Cvec, Cvec) -> Cvec = { _, c -> c }) {
if (y - for_y_start + overscan_open in 0 until LIGHTMAP_HEIGHT &&
x - for_x_start + overscan_open in 0 until LIGHTMAP_WIDTH) {
@@ -179,7 +202,7 @@ object LightmapRenderer {
lightmap[ypos][xpos] = applyFun.invoke(list[ypos][xpos], colour)
//list[ypos * LIGHTMAP_WIDTH + xpos] = applyFun.invoke(list[ypos * LIGHTMAP_WIDTH + xpos], colour)
}
}
}*/
internal fun fireRecalculateEvent(vararg actorContainers: List<ActorWithBody>?) {
try {
@@ -238,9 +261,10 @@ object LightmapRenderer {
// wipe out lightmap
AppLoader.measureDebugTime("Renderer.Light0") {
//for (k in 0 until lightmap.size) lightmap[k] = colourNull
for (y in 0 until lightmap.size) for (x in 0 until lightmap[0].size) lightmap[y][x] = colourNull
//for (y in 0 until lightmap.size) for (x in 0 until lightmap[0].size) lightmap[y][x] = colourNull
// when disabled, light will "decay out" instead of "instantly out", which can have a cool effect
// but the performance boost is measly 0.1 ms on 6700K
lightmap.zerofill()
}
// O((5*9)n) == O(n) where n is a size of the map.
// Because of inevitable overlaps on the area, it only works with MAX blend
@@ -404,7 +428,7 @@ object LightmapRenderer {
BlockCodex[world.getTileFromTerrain(x, y)].isSolid
}
catch (e: NullPointerException) {
System.err.println("Invalid block id ${world.getTileFromTerrain(x, y)} from coord ($x, $y)")
System.err.println("[LightmapRendererNew.buildNoopMask] Invalid block id ${world.getTileFromTerrain(x, y)} from coord ($x, $y)")
e.printStackTrace()
false
@@ -466,6 +490,28 @@ object LightmapRenderer {
thisFluid = world.getFluid(x, y)
thisWall = world.getTileFromWall(x, y) ?: Block.STONE
// regarding the issue #26
try {
val fuck = BlockCodex[thisTerrain].luminosity
}
catch (e: NullPointerException) {
System.err.println("## NPE -- x: $x, y: $y, value: $thisTerrain")
e.printStackTrace()
// create shitty minidump
System.err.println("MINIMINIDUMP START")
for (xx in x - 16 until x + 16) {
val raw = world.getTileFromTerrain(xx, y)
val lsb = raw.and(0xff).toString(16).padStart(2, '0')
val msb = raw.ushr(8).and(0xff).toString(16).padStart(2, '0')
System.err.print(lsb)
System.err.print(msb)
System.err.print(" ")
}
System.err.println("\nMINIMINIDUMP END")
System.exit(1)
}
if (thisFluid.type != Fluid.NULL) {
fluidAmountToCol.set(thisFluid.amount, thisFluid.amount, thisFluid.amount, thisFluid.amount)
@@ -544,13 +590,16 @@ object LightmapRenderer {
/**
* Calculates the light simulation, using main lightmap as one of the input.
*/
private fun calculateAndAssign(lightmap: Array<Array<Cvec>>, x: Int, y: Int) {
private fun calculateAndAssign(lightmap: UnsafeCvecArray, worldX: Int, worldY: Int) {
if (inNoopMask(x, y)) return
if (inNoopMask(worldX, worldY)) return
// O(9n) == O(n) where n is a size of the map
getLightsAndShades(x, y)
getLightsAndShades(worldX, worldY)
val x = worldX.convX()
val y = worldY.convY()
// calculate ambient
/* + * + 0 4 1
@@ -562,41 +611,36 @@ object LightmapRenderer {
// will "overwrite" what's there in the lightmap if it's the first pass
// takes about 2 ms on 6700K
/* + */lightLevelThis.maxAndAssign(darkenColoured(getLightInternal(x - 1, y - 1) ?: colourNull, thisTileOpacity2))
/* + */lightLevelThis.maxAndAssign(darkenColoured(getLightInternal(x + 1, y - 1) ?: colourNull, thisTileOpacity2))
/* + */lightLevelThis.maxAndAssign(darkenColoured(getLightInternal(x - 1, y + 1) ?: colourNull, thisTileOpacity2))
/* + */lightLevelThis.maxAndAssign(darkenColoured(getLightInternal(x + 1, y + 1) ?: colourNull, thisTileOpacity2))
/* * */lightLevelThis.maxAndAssign(darkenColoured(getLightInternal(x, y - 1) ?: colourNull, thisTileOpacity))
/* * */lightLevelThis.maxAndAssign(darkenColoured(getLightInternal(x, y + 1) ?: colourNull, thisTileOpacity))
/* * */lightLevelThis.maxAndAssign(darkenColoured(getLightInternal(x - 1, y) ?: colourNull, thisTileOpacity))
/* * */lightLevelThis.maxAndAssign(darkenColoured(getLightInternal(x + 1, y) ?: colourNull, thisTileOpacity))
/* + */lightLevelThis.maxAndAssign(darkenColoured(x - 1, y - 1, thisTileOpacity2))
/* + */lightLevelThis.maxAndAssign(darkenColoured(x + 1, y - 1, thisTileOpacity2))
/* + */lightLevelThis.maxAndAssign(darkenColoured(x - 1, y + 1, thisTileOpacity2))
/* + */lightLevelThis.maxAndAssign(darkenColoured(x + 1, y + 1, thisTileOpacity2))
/* * */lightLevelThis.maxAndAssign(darkenColoured(x, y - 1, thisTileOpacity))
/* * */lightLevelThis.maxAndAssign(darkenColoured(x, y + 1, thisTileOpacity))
/* * */lightLevelThis.maxAndAssign(darkenColoured(x - 1, y, thisTileOpacity))
/* * */lightLevelThis.maxAndAssign(darkenColoured(x + 1, y, thisTileOpacity))
//return lightLevelThis.cpy() // it HAS to be a cpy(), otherwise all cells gets the same instance
setLightOf(lightmap, x, y, lightLevelThis.cpy())
//setLightOf(lightmap, x, y, lightLevelThis.cpy())
lightmap.setR(x, y, lightLevelThis.r)
lightmap.setG(x, y, lightLevelThis.g)
lightmap.setB(x, y, lightLevelThis.b)
lightmap.setA(x, y, lightLevelThis.a)
}
private fun getLightForOpaque(x: Int, y: Int): Cvec? { // ...so that they wouldn't appear too dark
val l = getLightInternal(x, y)
if (l == null) return null
private fun isSolid(x: Int, y: Int): Float? { // ...so that they wouldn't appear too dark
if (!inBounds(x, y)) return null
// brighten if solid
if (BlockCodex[world.getTileFromTerrain(x, y)].isSolid) {
return Cvec(
(l.r * 1.2f),
(l.g * 1.2f),
(l.b * 1.2f),
(l.a * 1.2f)
)
}
else {
return l
}
return if (BlockCodex[world.getTileFromTerrain(x, y)].isSolid) 1.2f else 1f
}
var lightBuffer: Pixmap = Pixmap(1, 1, Pixmap.Format.RGBA8888)
private val colourNull = Cvec(0)
private val gdxColorNull = Color(0)
private val epsilon = 1f/1024f
private var _lightBufferAsTex: Texture = Texture(1, 1, Pixmap.Format.RGBA8888)
@@ -626,7 +670,20 @@ object LightmapRenderer {
for (x in this_x_start..this_x_end) {
val color = (getLightForOpaque(x, y) ?: Cvec(0f, 0f, 0f, 0f)).normaliseToHDR()
val solidMultMagic = isSolid(x, y)
val arrayX = x.convX()
val arrayY = y.convY()
val color = if (solidMultMagic == null)
gdxColorNull
else
Color(
lightmap.getR(arrayX, arrayY) * solidMultMagic,
lightmap.getG(arrayX, arrayY) * solidMultMagic,
lightmap.getB(arrayX, arrayY) * solidMultMagic,
lightmap.getA(arrayX, arrayY) * solidMultMagic
).normaliseToHDR()
lightBuffer.setColor(color)
@@ -661,34 +718,30 @@ object LightmapRenderer {
/**
* Subtract each channel's RGB value.
*
* @param data Raw channel value (0-255) per channel
* @param x array coord
* @param y array coord
* @param darken (0-255) per channel
* @return darkened data (0-255) per channel
*/
fun darkenColoured(data: Cvec, darken: Cvec): Cvec {
fun darkenColoured(x: Int, y: Int, darken: Cvec): Cvec {
// use equation with magic number 8.0
// this function, when done recursively (A_x = darken(A_x-1, C)), draws exponential curve. (R^2 = 1)
return Cvec(
/*return Cvec(
data.r * (1f - darken.r * lightScalingMagic),//.clampZero(),
data.g * (1f - darken.g * lightScalingMagic),//.clampZero(),
data.b * (1f - darken.b * lightScalingMagic),//.clampZero(),
data.a * (1f - darken.a * lightScalingMagic))
}
data.a * (1f - darken.a * lightScalingMagic))*/
/**
* Darken each channel by 'darken' argument
*
* @param data Raw channel value (0-255) per channel
* @param darken (0-255)
* @return
*/
fun darkenUniformInt(data: Cvec, darken: Float): Cvec {
if (darken < 0 || darken > CHANNEL_MAX)
throw IllegalArgumentException("darken: out of range ($darken)")
if (x !in 0 until LIGHTMAP_WIDTH || y !in 0 until LIGHTMAP_HEIGHT) return colourNull
return Cvec(
lightmap.getR(x, y) * (1f - darken.r * lightScalingMagic),
lightmap.getG(x, y) * (1f - darken.g * lightScalingMagic),
lightmap.getB(x, y) * (1f - darken.b * lightScalingMagic),
lightmap.getA(x, y) * (1f - darken.a * lightScalingMagic)
)
val darkenColoured = Cvec(darken, darken, darken, darken)
return darkenColoured(data, darkenColoured)
}
/**
@@ -768,7 +821,8 @@ object LightmapRenderer {
_init = true
}
lightBuffer = Pixmap(tilesInHorizontal, tilesInVertical, Pixmap.Format.RGBA8888)
lightmap = Array(LIGHTMAP_HEIGHT) { Array(LIGHTMAP_WIDTH) { Cvec(0) } }
lightmap.destroy()
lightmap = UnsafeCvecArray(LIGHTMAP_WIDTH, LIGHTMAP_HEIGHT)
//lightmap = Array<Cvec>(LIGHTMAP_WIDTH * LIGHTMAP_HEIGHT) { Cvec(0) }
@@ -843,7 +897,7 @@ object LightmapRenderer {
1.0000f,1.0000f,1.0000f,1.0000f,1.0000f,1.0000f,1.0000f,1.0000f,1.0000f,1.0000f,1.0000f,1.0000f,1.0000f,1.0000f,1.0000f,1.0000f // isn't it beautiful?
)
/** To eliminated visible edge on the gradient when 255/1023 is exceeded */
internal fun Cvec.normaliseToHDR() = Color(
internal fun Color.normaliseToHDR() = Color(
hdr(this.r.coerceIn(0f, 1f)),
hdr(this.g.coerceIn(0f, 1f)),
hdr(this.b.coerceIn(0f, 1f)),
@@ -864,12 +918,14 @@ object LightmapRenderer {
for (y in overscan_open..render_height + overscan_open + 1) {
for (x in overscan_open..render_width + overscan_open + 1) {
try {
val colour = lightmap[y][x]
//val colour = lightmap[y][x]
//val colour = lightmap[y * LIGHTMAP_WIDTH + x]
reds[minOf(CHANNEL_MAX, colour.r.times(MUL).floorInt())] += 1
greens[minOf(CHANNEL_MAX, colour.g.times(MUL).floorInt())] += 1
blues[minOf(CHANNEL_MAX, colour.b.times(MUL).floorInt())] += 1
uvs[minOf(CHANNEL_MAX, colour.a.times(MUL).floorInt())] += 1
val x = x.convX()
val y = y.convY()
//reds[minOf(CHANNEL_MAX, lightmap.getR(x, y).times(MUL).floorInt())] += 1
//greens[minOf(CHANNEL_MAX, lightmap.getG(x, y).times(MUL).floorInt())] += 1
//blues[minOf(CHANNEL_MAX, lightmap.getB(x, y).floorInt())] += 1
//uvs[minOf(CHANNEL_MAX, lightmap.getA(x, y).floorInt())] += 1
}
catch (e: ArrayIndexOutOfBoundsException) { }
}