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fix: RGB upload function broken for non-native size

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This commit is contained in:
minjaesong
2025-10-10 00:03:31 +09:00
parent 0b7b8cdd35
commit 222b9866a8
2 changed files with 33 additions and 40 deletions
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29
assets/disk0/tvdos/bin/playtav.js
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@@ -112,7 +112,8 @@ if (fullFilePathStr.startsWith('$:/TAPE') || fullFilePathStr.startsWith('$:\\TAP
con.clear()
con.curs_set(0)
graphics.setGraphicsMode(5) // 32-bit colour mode
graphics.setGraphicsMode(4) // initially set to 4bpp mode
graphics.setGraphicsMode(5) // set to 8bpp mode. If GPU don't support it, mode will remain to 4
graphics.clearPixels(0)
graphics.clearPixels2(0)
graphics.clearPixels3(0)
@@ -394,31 +395,27 @@ let decodeTime = 0
let uploadTime = 0
let biasTime = 0
const nativeWidth = graphics.getPixelDimension()[0]
const nativeHeight = graphics.getPixelDimension()[1]
const BIAS_LIGHTING_MIN = 1.0 / 16.0
let oldBgcol = [BIAS_LIGHTING_MIN, BIAS_LIGHTING_MIN, BIAS_LIGHTING_MIN]
let notifHidden = false
function getRGBfromScr(x, y) {
if (gpuGraphicsMode == 4) {
let offset = y * WIDTH + x
let rg = sys.peek(-1048577 - offset)
let ba = sys.peek(-1310721 - offset)
return [(rg >>> 4) / 15.0, (rg & 15) / 15.0, (ba >>> 4) / 15.0]
}
else if (gpuGraphicsMode == 5) {
let offset = y * WIDTH + x
let r = sys.peek(-1048577 - offset)
let g = sys.peek(-1310721 - offset)
let b = sys.peek(-1572865 - offset)
return [r / 255.0, g / 255.0, b / 255.0]
}
let offset = y * WIDTH + x
let fb1 = sys.peek(-1048577 - offset)
let fb2 = sys.peek(-1310721 - offset)
let fb3 = sys.peek(-1310721 - (262144 * (gpuGraphicsMode - 4)) - offset)
if (gpuGraphicsMode == 4)
return [(fb1 >>> 4) / 15.0, (fb1 & 15) / 15.0, (fb2 >>> 4) / 15.0]
else
return [fb1 / 255.0, fb2 / 255.0, fb3 / 255.0]
}
function setBiasLighting() {
let samples = []
let nativeWidth = graphics.getPixelDimension()[0]
let nativeHeight = graphics.getPixelDimension()[1]
let width = header.width; let height = header.height
let offsetX = Math.floor((nativeWidth - width) / 2)

44
tsvm_core/src/net/torvald/tsvm/GraphicsJSR223Delegate.kt
View File

@@ -1477,28 +1477,24 @@ class GraphicsJSR223Delegate(private val vm: VM) {
// Get native resolution
val nativeWidth = gpu.config.width
val nativeHeight = gpu.config.height
val totalNativePixels = (nativeWidth * nativeHeight)
val totalNativePixels = nativeWidth * nativeHeight
val totalVideoPixels = width * height
val chunkSize = 32768
val chunkSize = width
val rgbBulkBuffer = ByteArray(chunkSize * 3)
val rgChunk = ByteArray(chunkSize)
val baChunk = ByteArray(chunkSize)
val rChunk = ByteArray(chunkSize)
val gChunk = ByteArray(chunkSize)
val bChunk = ByteArray(chunkSize)
val aChunk = ByteArray(chunkSize); aChunk.fill(-1)
val aChunk = ByteArray(chunkSize)
var pixelsProcessed = 0
// Helper function to write chunks to framebuffer (shared between native size and resize paths)
fun writeChunksToFramebuffer(
pixelsInChunk: Int,
rgChunk: ByteArray, baChunk: ByteArray,
rChunk: ByteArray, gChunk: ByteArray, bChunk: ByteArray, aChunk: ByteArray
) {
fun writeChunksToFramebuffer(pixelsInChunk: Int, startX: Int = 0, startY: Int = 0) {
val pixelIndex = pixelsProcessed
val videoY = pixelIndex / width
val videoX = pixelIndex % width
val videoY = (pixelIndex / width) + startY
val videoX = (pixelIndex % width) + startX
val nativePos = videoY * nativeWidth + videoX
if (graphicsMode == 4) {
UnsafeHelper.memcpyRaw(
@@ -1510,7 +1506,7 @@ class GraphicsJSR223Delegate(private val vm: VM) {
null, gpu.framebuffer2!!.ptr + nativePos, pixelsInChunk.toLong()
)
}
else if (graphicsMode == 5) {
else {
UnsafeHelper.memcpyRaw(
rChunk, UnsafeHelper.getArrayOffset(rChunk),
null, gpu.framebuffer.ptr + nativePos, pixelsInChunk.toLong()
@@ -1532,7 +1528,7 @@ class GraphicsJSR223Delegate(private val vm: VM) {
pixelsProcessed += pixelsInChunk
}
fun writeToChunk(r: Int, g: Int, b: Int, videoX: Int, videoY: Int, i: Int) {
fun writeToChunk(r: Int, g: Int, b: Int, videoX: Int, videoY: Int, i: Int, coordInVideoFrame: Boolean = true) {
if (graphicsMode == 4) {
// Apply Bayer dithering and convert to 4-bit
val r4 = ditherValue(r, videoX, videoY, frameCount)
@@ -1541,13 +1537,14 @@ class GraphicsJSR223Delegate(private val vm: VM) {
// Pack RGB values and store in chunk arrays for batch processing
rgChunk[i] = ((r4 shl 4) or g4).toByte()
baChunk[i] = ((b4 shl 4) or 15).toByte()
baChunk[i] = ((b4 shl 4) or coordInVideoFrame.toInt().times(15)).toByte()
}
else if (graphicsMode == 5) {
else {
rChunk[i] = r.toByte()
gChunk[i] = g.toByte()
bChunk[i] = b.toByte()
aChunk[i] = coordInVideoFrame.toInt().times(255).toByte()
}
}
@@ -1574,7 +1571,7 @@ class GraphicsJSR223Delegate(private val vm: VM) {
}
// Write chunks to framebuffer
writeChunksToFramebuffer(pixelsInChunk, rgChunk, baChunk, rChunk, gChunk, bChunk, aChunk)
writeChunksToFramebuffer(pixelsInChunk)
}
}
else if (resizeToFull && (width / 2 != nativeWidth / 2 || height / 2 != nativeHeight / 2)) {
@@ -1605,7 +1602,7 @@ class GraphicsJSR223Delegate(private val vm: VM) {
}
// Write chunks to framebuffer
writeChunksToFramebuffer(pixelsInChunk, rgChunk, baChunk, rChunk, gChunk, bChunk, aChunk)
writeChunksToFramebuffer(pixelsInChunk)
}
} else {
// Optimised centering logic with bulk memory operations
@@ -1633,18 +1630,17 @@ class GraphicsJSR223Delegate(private val vm: VM) {
if (nativeX !in 0 until nativeWidth || nativeY !in 0 until nativeHeight) {
continue
}
// Read RGB values from bulk buffer
val rgbIndex = i * 3
val r = rgbBulkBuffer[rgbIndex].toUint()
val g = rgbBulkBuffer[rgbIndex + 1].toUint()
val b = rgbBulkBuffer[rgbIndex + 2].toUint()
writeToChunk(r, g, b, videoX, videoY, i)
// Read RGB values from bulk buffer
val r = rgbBulkBuffer[i*3].toUint()
val g = rgbBulkBuffer[i*3 + 1].toUint()
val b = rgbBulkBuffer[i*3 + 2].toUint()
writeToChunk(r, g, b, nativeX, nativeY, i)
}
// Write chunks to framebuffer
writeChunksToFramebuffer(pixelsInChunk, rgChunk, baChunk, rChunk, gChunk, bChunk, aChunk)
writeChunksToFramebuffer(pixelsInChunk, offsetX, offsetY)
}
}
}