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ICtCp colour space wip

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minjaesong
2025-09-15 01:44:29 +09:00
parent 198e951102
commit 9c2aa96b73
4 changed files with 480 additions and 462 deletions
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29
assets/disk0/tvdos/bin/playtev.js
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@@ -11,7 +11,7 @@ const HEIGHT = 448
const BLOCK_SIZE = 16 // 16x16 blocks for YCoCg-R
const TEV_MAGIC = [0x1F, 0x54, 0x53, 0x56, 0x4D, 0x54, 0x45, 0x56] // "\x1FTSVM TEV"
const TEV_VERSION_YCOCG = 2 // YCoCg-R version
const TEV_VERSION_XYB = 3 // XYB version
const TEV_VERSION_ICtCp = 3 // ICtCp version
const SND_BASE_ADDR = audio.getBaseAddr()
const pcm = require("pcm")
const MP2_FRAME_SIZE = [144,216,252,288,360,432,504,576,720,864,1008,1152,1440,1728]
@@ -391,18 +391,15 @@ if (!magicMatching) {
// Read header
let version = seqread.readOneByte()
if (version !== TEV_VERSION_YCOCG && version !== TEV_VERSION_XYB) {
println(`Unsupported TEV version: ${version} (expected ${TEV_VERSION_YCOCG} for YCoCg-R or ${TEV_VERSION_XYB} for XYB)`)
if (version !== TEV_VERSION_YCOCG && version !== TEV_VERSION_ICtCp) {
println(`Unsupported TEV version: ${version} (expected ${TEV_VERSION_YCOCG} for YCoCg-R or ${TEV_VERSION_ICtCp} for ICtCp)`)
return 1
}
let colorSpace = (version === TEV_VERSION_XYB) ? "XYB" : "YCoCg-R"
let colorSpace = (version === TEV_VERSION_ICtCp) ? "ICtCp" : "YCoCg"
if (interactive) {
con.move(1,1)
if (colorSpace == "XYB")
println(`Push and hold Backspace to exit | TEV Format ${version} (${colorSpace}) | Deblock: ${enableDeblocking ? 'ON' : 'OFF'}, ${enableBoundaryAwareDecoding ? 'ON' : 'OFF'}`);
else
println(`Push and hold Backspace to exit | Deblock: ${enableDeblocking ? 'ON' : 'OFF'} | BoundaryAware: ${enableBoundaryAwareDecoding ? 'ON' : 'OFF'}`);
println(`Push and hold Backspace to exit | ${colorSpace} | Deblock: ${enableDeblocking ? 'ON' : 'OFF'} | EdgeAware: ${enableBoundaryAwareDecoding ? 'ON' : 'OFF'}`);
}
let width = seqread.readShort()
@@ -418,7 +415,6 @@ let hasSubtitle = !!(flags & 2)
let videoFlags = seqread.readOneByte()
let isInterlaced = !!(videoFlags & 1)
let isNTSC = !!(videoFlags & 2)
let isLossless = !!(videoFlags & 4)
let unused2 = seqread.readOneByte()
@@ -428,7 +424,7 @@ serial.println(` FPS: ${(isNTSC) ? (fps * 1000 / 1001) : fps}`)
serial.println(` Duration: ${totalFrames / fps}`)
serial.println(` Audio: ${hasAudio ? "Yes" : "No"}`)
serial.println(` Resolution: ${width}x${height}, ${isInterlaced ? "interlaced" : "progressive"}`)
serial.println(` Quality: Y=${qualityY}, Co=${qualityCo}, Cg=${qualityCg}, ${isLossless ? "lossless" : "lossy"}`)
serial.println(` Quality: Y=${qualityY}, Co=${qualityCo}, Cg=${qualityCg}`)
// DEBUG interlace raw output
@@ -621,7 +617,7 @@ try {
PREV_RGB_ADDR = temp
} else if (packetType == TEV_PACKET_IFRAME || packetType == TEV_PACKET_PFRAME) {
// Video frame packet (always includes rate control factor)
// Video frame packet
let payloadLen = seqread.readInt()
let compressedPtr = seqread.readBytes(payloadLen)
updateDataRateBin(payloadLen)
@@ -636,11 +632,6 @@ try {
// Decompress using gzip
// Optimized buffer size calculation for TEV YCoCg-R blocks
let blocksX = (width + 15) >> 4 // 16x16 blocks
let blocksY = (height + 15) >> 4
let tevBlockSize = 1 + 4 + 2 + (256 * 2) + (64 * 2) + (64 * 2) // mode + mv + cbp + Y(16x16) + Co(8x8) + Cg(8x8)
let decompressedSize = Math.max(payloadLen * 4, blocksX * blocksY * tevBlockSize) // More efficient sizing
let actualSize
let decompressStart = sys.nanoTime()
try {
@@ -655,7 +646,7 @@ try {
continue
}
// Hardware-accelerated TEV decoding to RGB buffers (YCoCg-R or XYB based on version)
// Hardware-accelerated TEV decoding to RGB buffers (YCoCg-R or ICtCp based on version)
try {
// duplicate every 1000th frame (pass a turn every 1000n+501st) if NTSC
if (!isNTSC || frameCount % 1000 != 501 || frameDuped) {
@@ -667,14 +658,14 @@ try {
if (isInterlaced) {
// For interlaced: decode current frame into currentFieldAddr
// For display: use prevFieldAddr as current, currentFieldAddr as next
graphics.tevDecode(blockDataPtr, nextFieldAddr, currentFieldAddr, width, decodingHeight, qualityY, qualityCo, qualityCg, trueFrameCount, debugMotionVectors, version, enableDeblocking, enableBoundaryAwareDecoding, isLossless)
graphics.tevDecode(blockDataPtr, nextFieldAddr, currentFieldAddr, width, decodingHeight, qualityY, qualityCo, qualityCg, trueFrameCount, debugMotionVectors, version, enableDeblocking, enableBoundaryAwareDecoding)
graphics.tevDeinterlace(trueFrameCount, width, decodingHeight, prevFieldAddr, currentFieldAddr, nextFieldAddr, CURRENT_RGB_ADDR, deinterlaceAlgorithm)
// Rotate field buffers for next frame: NEXT -> CURRENT -> PREV
rotateFieldBuffers()
} else {
// Progressive or first frame: normal decoding without temporal prediction
graphics.tevDecode(blockDataPtr, CURRENT_RGB_ADDR, PREV_RGB_ADDR, width, decodingHeight, qualityY, qualityCo, qualityCg, trueFrameCount, debugMotionVectors, version, enableDeblocking, enableBoundaryAwareDecoding, isLossless)
graphics.tevDecode(blockDataPtr, CURRENT_RGB_ADDR, PREV_RGB_ADDR, width, decodingHeight, qualityY, qualityCo, qualityCg, trueFrameCount, debugMotionVectors, version, enableDeblocking, enableBoundaryAwareDecoding)
}
decodeTime = (sys.nanoTime() - decodeStart) / 1000000.0 // Convert to milliseconds