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bias lighting (wut?) on playmov; gpu background is now 8bpp

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This commit is contained in:
minjaesong
2023-01-09 01:41:35 +09:00
parent ba699606bb
commit 47b3cd0cad
6 changed files with 63 additions and 12 deletions
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4
assets/bios/tsvmbios.js
View File

@@ -16,7 +16,7 @@ let o=[];for(let y=0;y<164;y++){
let k=Math.round(r()*560/m)|0;
o.push(k);graphics.setLineOffset(95+y,k*m);}
// unhide screen
graphics.setBackground(0,4,15);con.color_pair(239,255);
graphics.setBackground(0,68,255);con.color_pair(239,255);
for(let i=0;i<2560;i++)graphics.putSymbolAt(1+(i/80)|0,1+(i%80),0);
// unscramble
let tmr=0;let n=560*2;while(n>0){
@@ -36,7 +36,7 @@ for(let i=0;i<2560;i++)graphics.putSymbolAt(1+(i/80)|0,1+(i%80),239);
// draw logo
for(let i=0;i<logo.length;i++){graphics.plotPixel(i%560,95+(i/560)|0,logo[i])}
// cover up bottom part with text characters (!)
graphics.setBackground(0,4,15);con.color_pair(14,255);
graphics.setBackground(0,68,255);con.color_pair(14,255);
for(let y=1;y<19;y++)for(let x=1;x<81;x++)graphics.putSymbolAt(y,x,32);
for(let x=1;x<81;x++)graphics.putSymbolAt(19,x,220);
for(let y=20;y<33;y++)for(let x=1;x<81;x++)graphics.putSymbolAt(y,x,219);

2
assets/disk0/tvdos/bin/color.js
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@@ -38,7 +38,7 @@ if (exec_args[1]) {
serial.println(fo)
graphics.setBackground(ba[0], ba[1], ba[2])
graphics.setBackground(ba[0]*16+ba[0], ba[1]*16+ba[1], ba[2]*16+ba[2])
_G.shell.usrcfg.textCol = fo
con.color_pair(fo, 255)
}

49
assets/disk0/tvdos/bin/playmov.js
View File

@@ -1,5 +1,8 @@
const FBUF_SIZE = 560*448
const WIDTH = 560
const HEIGHT = 448
const FBUF_SIZE = WIDTH * HEIGHT
const AUTO_BGCOLOUR_CHANGE = true
const MAGIC = [0x1F, 0x54, 0x53, 0x56, 0x4D, 0x4D, 0x4F, 0x56]
@@ -68,6 +71,16 @@ audio.purgeQueue(0)
audio.setPcmMode(0)
audio.setMasterVolume(0, 255)
function getRGBfromScr(x, y) {
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]
}
let oldBgcol = [0.0, 0.0, 0.0]
renderLoop:
while (seqread.getReadCount() < FILE_LENGTH) {
let t1 = sys.nanoTime()
@@ -94,6 +107,7 @@ while (seqread.getReadCount() < FILE_LENGTH) {
}
// background colour packets
else if (65279 == packetType) {
AUTO_BGCOLOUR_CHANGE = false
let rgbx = seqread.readInt()
graphics.setBackground(
(rgbx & 0xFF000000) >>> 24,
@@ -120,6 +134,39 @@ while (seqread.getReadCount() < FILE_LENGTH) {
gzip.decompFromTo(gzippedPtr, payloadLen, ipfbuf) // should return FBUF_SIZE
decodefun(ipfbuf, -1048577, -1310721, width, height, (packetType & 255) == 5)
// calculate bgcolour from the edges of the screen
if (AUTO_BGCOLOUR_CHANGE) {
let samples = []
for (let x = 8; x < 560; x+=32) {
samples.push(getRGBfromScr(x, 3))
samples.push(getRGBfromScr(x, 445))
}
for (let y = 29; y < 448; y+=26) {
samples.push(getRGBfromScr(8, y))
samples.push(getRGBfromScr(552, y))
}
let out = [0.0, 0.0, 0.0]
samples.forEach(rgb=>{
out[0] += rgb[0]
out[1] += rgb[1]
out[2] += rgb[2]
})
out[0] = out[0] / samples.length / 2.0 // darken a bit
out[1] = out[1] / samples.length / 2.0
out[2] = out[2] / samples.length / 2.0
let bgr = (oldBgcol[0]*5 + out[0]) / 6.0
let bgg = (oldBgcol[1]*5 + out[1]) / 6.0
let bgb = (oldBgcol[2]*5 + out[2]) / 6.0
oldBgcol = [bgr, bgg, bgb]
graphics.setBackground(Math.round(bgr * 255), Math.round(bgg * 255), Math.round(bgb * 255))
}
// defer audio playback until a first frame is sent
if (!audioFired) {
audio.play(0)