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FBIPF writing impl

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minjaesong
2022-08-19 13:26:37 +09:00
parent b3ac861946
commit 79f4584dd4
5 changed files with 65 additions and 7 deletions
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2
assets/disk0/encodeipf.js
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@@ -230,7 +230,7 @@ let headerBytes = [
0x1F, 0x54, 0x53, 0x56, 0x4D, 0x69, 0x50, 0x46, // magic
imgw & 255, (imgw >>> 8) & 255, // width
imgh & 255, (imgh >>> 8) & 255, // height
((hasAlpha) ? 1 : 0), 0x00, // has alpha
((hasAlpha) ? 1 : 0), 0x00, // has alpha, iPF type 1
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // reserved
]

2
assets/disk0/encodeipf2.js
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@@ -248,7 +248,7 @@ let headerBytes = [
0x1F, 0x54, 0x53, 0x56, 0x4D, 0x69, 0x50, 0x46, // magic
imgw & 255, (imgw >>> 8) & 255, // width
imgh & 255, (imgh >>> 8) & 255, // height
((hasAlpha) ? 1 : 0), 0x00, // has alpha
((hasAlpha) ? 1 : 0), 0x01, // has alpha, iPF Type 2
0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // reserved
]

57
assets/disk0/tvdos/TVDOS.SYS
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@@ -525,6 +525,48 @@ Object.freeze(_TVDOS.DRV.FS.DEVCON)
///////////////////////////////////////////////////////////////////////////////
_TVDOS.DRV.FS.DEVFBIPF = {}
_TVDOS.DRV.FS.DEVFBIPF.pwrite = (fd, ptr, _1, _2) => {
let decodefun = ([graphics.decodeIpf1, graphics.decodeIpf2])[sys.peek(ptr + 13)]
// offset 24..27: gzipped size
let width = sys.peek(ptr+8) | (sys.peek(ptr+9) << 8)
let height = sys.peek(ptr+10) | (sys.peek(ptr+11) << 8)
let hasAlpha = (sys.peek(12) != 0)
println("Calling GPU")
decodefun(ptr + 24, -1048577, -1310721, width, height, hasAlpha)
println("Changing graphics mode")
graphics.setGraphicsMode(4)
println("cya!")
}
_TVDOS.DRV.FS.DEVFBIPF.bwrite = (fd, bytes) => {
// TODO pread the file
let fp = sys.malloc(bytes.length)
bytes.forEach((it,i) => {
sys.poke(fp + i, it)
})
_TVDOS.DRV.FS.DEVFBIPF.pwrite(fd, fp)
sys.free(fp)
}
_TVDOS.DRV.FS.DEVFBIPF.flush = () => {}
_TVDOS.DRV.FS.DEVFBIPF.close = () => {}
_TVDOS.DRV.FS.DEVFBIPF.isDirectory = () => false
_TVDOS.DRV.FS.DEVFBIPF.listFiles = () => undefined
_TVDOS.DRV.FS.DEVFBIPF.touch = () => {}
_TVDOS.DRV.FS.DEVFBIPF.mkDir = () => {}
_TVDOS.DRV.FS.DEVFBIPF.mkFile = () => {}
_TVDOS.DRV.FS.DEVFBIPF.remove = () => {}
_TVDOS.DRV.FS.DEVFBIPF.exists = () => true
Object.freeze(_TVDOS.DRV.FS.DEVFBIPF)
///////////////////////////////////////////////////////////////////////////////
// Legacy Serial filesystem, !!pending for removal!!
const filesystem = {};
@@ -654,7 +696,20 @@ Object.freeze(filesystem);
const files = {}
files.reservedNames = ["AUX","COM1","COM2","COM3","COM4","CON","FB1","FB2","FB3","FB4","LPT1","LPT2","LPT3","LPT4","MEM","NUL","PMEM0","PMEM1","PMEM2","PMEM3","PMEM4","PMEM5","PMEM6","PMEM7","PRN","RND","ZERO"]
files.reservedNames = ["AUX", // unused
"COM1","COM2","COM3","COM4", // serial ports
"CON", // the tty
"FB1","FB2", // raw framebuffer, 256 colours, typ. 560x448
"FBIPF", // framebuffer that accepts IPF-formatted bytes, reduced colours, typ. 560x448
"HFB1","HFB2","HFB3","HFB4", // half-dimension framebuffers, 256 colours, typ. 280x224
"LPT1","LPT2","LPT3","LPT4", // reserved for "parallel ports"; unused
"MEM", // /dev/mem
"NUL", // /dev/null
"PMEM0","PMEM1","PMEM2","PMEM3","PMEM4","PMEM5","PMEM6","PMEM7", // /dev/mem for peripherals
"PRN", // a printer
"RND", // /dev/urandom
"XFB", // raw framebuffer, 4096 colours, typ. 560x448. Memory layout follows the gpu's (0..250779: RG-plane, 250880..262143: gap, 262144..513023: BA-plane)
"ZERO"] // /dev/zero
/** This function only creates a file descriptor; will not actually interact with the drives yet. */
files.open = (fullpath) => {

2
assets/disk0/tvdos/bin/command.js
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@@ -617,7 +617,7 @@ shell.execute = function(line) {
gotError = true
serial.printerr(`[command.js] program quit with ${e}:\n${e.stack || '(stack trace unavailable)'}`)
printerrln(`Program quit with error:\n${e.stack || '(stack trace unavailable)'}`)
printerrln(`Program quit with ${e}:\n${e.stack || '(stack trace unavailable)'}`)
if (`${e}`.startsWith("InterruptedException"))
errorlevel = SIGTERM.name

9
terranmon.txt
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@@ -411,7 +411,7 @@ TYPE 255 FRAME -
--------------------------------------------------------------------------------
TSVM Interchangeable Picture Format (aka iPF Type 1)
TSVM Interchangeable Picture Format (aka iPF Type 1/2)
Image is divided into 4x4 blocks and each block is serialised, then the entire file is gzipped
@@ -419,12 +419,15 @@ Image is divided into 4x4 blocks and each block is serialised, then the entire f
# File Structure
\x1F T S V M i P F
[HEADER]
[Blocks.gz]
[Blocks.gz] or [Blocks] // gzipping is optional and only done for videos
- Header
uint16 WIDTH
uint16 HEIGHT
uint16 HAS ALPHA
uint8 HAS ALPHA
uint8 IPF Type
0: Type 1
1: Type 2
byte[10] RESERVED
- *.gz