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TEV/TAV: SSF-TC impl

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minjaesong
2025-11-06 01:18:19 +09:00
parent af3679921d
commit 00c882aa8d
7 changed files with 403 additions and 118 deletions
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17
tsvm_core/src/net/torvald/tsvm/GraphicsJSR223Delegate.kt
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@@ -536,7 +536,7 @@ class GraphicsJSR223Delegate(private val vm: VM) {
3f/16f,5f/16f,1f/16f,
)
private val bayerKernels = arrayOf(
private val bayerKernelsInt = arrayOf(
intArrayOf(
0,8,2,10,
12,4,14,6,
@@ -561,7 +561,9 @@ class GraphicsJSR223Delegate(private val vm: VM) {
12,4,14,6,
3,11,1,9,
)
).map{ it.map { (it.toFloat() + 0.5f) / 16f }.toFloatArray() }
)
private val bayerKernels = bayerKernelsInt.map{ it.map { (it.toFloat() + 0.5f) / 16f }.toFloatArray() }
/**
* This method always assume that you're using the default palette
@@ -6583,13 +6585,6 @@ class GraphicsJSR223Delegate(private val vm: VM) {
val offsetY = (nativeHeight - height) / 2
// Dithering pattern for 8bpp → 4bpp conversion
val bayerMatrix = arrayOf(
intArrayOf(0, 8, 2, 10),
intArrayOf(12, 4, 14, 6),
intArrayOf(3, 11, 1, 9),
intArrayOf(15, 7, 13, 5)
)
// Process row by row
for (y in 0 until height) {
val screenY = y + offsetY
@@ -6611,13 +6606,13 @@ class GraphicsJSR223Delegate(private val vm: VM) {
if (graphicsMode == 4) {
// 4bpp mode: dithered RGB (RG in fb1, B_ in fb2)
val threshold = bayerMatrix[y % 4][x % 4]
val threshold = bayerKernelsInt[frameCount % 4][4 * (y % 4) + (x % 4)]
val rDithered = ((r + (threshold - 8)) shr 4).coerceIn(0, 15)
val gDithered = ((g + (threshold - 8)) shr 4).coerceIn(0, 15)
val bDithered = ((b + (threshold - 8)) shr 4).coerceIn(0, 15)
gpu.framebuffer[screenPixelIdx] = ((rDithered shl 4) or gDithered).toByte()
gpu.framebuffer2?.set(screenPixelIdx, (bDithered shl 4).toByte())
gpu.framebuffer2?.set(screenPixelIdx, ((bDithered shl 4) or 15).toByte())
} else if (graphicsMode == 5) {
// 8bpp mode: full RGB (R in fb1, G in fb2, B in fb3)
gpu.framebuffer[screenPixelIdx] = r.toByte()