229 lines
7.5 KiB
Plaintext
229 lines
7.5 KiB
Plaintext
{
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Multi core transform sample
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derived from "3D Graphics DEMO" by Beau Schwabe (Parallax)
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}
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CON
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' enable multi core transform calculation
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MultiCoreTranform = true
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ZX = 180
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ZY = 240
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MaxPoints = 50
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_CLKMODE = XTAL1 + PLL16X
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_XINFREQ = 5_000_000
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_stack = ($3000 + $3000 + 100) >> 2
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x_tiles = 16
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y_tiles = 12
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paramcount = 14
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bitmap_base = $2000
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display_base = $5000
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VAR
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long tv_status '0/1/2 = off/visible/invisible read-only
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long tv_enable '0/? = off/on write-only
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long tv_pins '%ppmmm = pins write-only
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long tv_mode '%ccinp = chroma,interlace,ntsc/pal,swap write-only
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long tv_screen 'pointer to screen (words) write-only
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long tv_colors 'pointer to colors (longs) write-only
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long tv_hc 'horizontal cells write-only
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long tv_vc 'vertical cells write-only
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long tv_hx 'horizontal cell expansion write-only
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long tv_vx 'vertical cell expansion write-only
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long tv_ho 'horizontal offset write-only
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long tv_vo 'vertical offset write-only
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long tv_broadcast 'broadcast frequency (Hz) write-only
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long tv_auralcog 'aural fm cog write-only
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word screen[x_tiles * y_tiles]
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long colors[64]
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long cogStack[40 * 5]
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long pointData[MaxPoints * 5]
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byte frame
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OBJ
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tv : "bel-tv"
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gr : "pf_graphics"
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PUB start | i,dx,dy
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'start tv
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longmove(@tv_status, @tvparams, paramcount)
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tv_screen := @screen
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tv_colors := @colors
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tv.start(@tv_status)
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'init colors
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repeat i from 0 to 63
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colors[i] := $ad02ad06
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'init tile screen
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i := 0
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repeat dy from 0 to tv_vc - 1
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repeat dx from 0 to tv_hc - 1
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screen[i++] := display_base >> 6 + dy + dx * tv_vc + (dy << 10)
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'start and setup graphics
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gr.start
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gr.setup(tv_hc, tv_vc, tv_hc<<3, tv_vc<<3, bitmap_base)
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'Start transform routines (per object)
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if MultiCoreTranform
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repeat i from 0 to 4
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cognew( Polyobj(@pointData[ MaxPoints * i ], @PostureData + i * 20), @cogStack[i * 40] )
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MainLoop
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PRI MainLoop | i, n, t
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n := 0
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t := cnt & |<27
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repeat
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gr.clear
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gr.width(0)
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repeat i from 0 to n
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if !MultiCoreTranform
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TranslatePoints( @pointData[ MaxPoints * i ], @PostureData + i * 20, @PointSrc, constant((@PointSrc_End - @PointSrc)/3) )
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repeat until ( word[ @PostureData + i * 20 + 18] == frame )
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gr.lineseq( @pointData[MaxPoints * i], @SeqData)
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gr.copy(display_base)
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frame++
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if ( t <> cnt & |<27 )
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t := cnt & |<27
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n := (n + 1) <# 4
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'wait Vsync
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repeat until ( tv_status == 1 )
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PRI PolyObj(destAddr, postureAddr)
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repeat
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repeat while word[ postureAddr + 18 ] == frame
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TranslatePoints( destAddr, postureAddr, @PointSrc, constant((@PointSrc_End - @PointSrc)/3) )
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PRI TranslatePoints( destAddr, postureAddr, pointAddr, numPoints ) | i,dst,px,py,pz,tx,ty,tz,dx,dy,dz,S1,S2,S3,C1,C2,C3,x,y,z
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tx := ( word[ postureAddr + 6 ] += word[ postureAddr + 12 ] )
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ty := ( word[ postureAddr + 8 ] += word[ postureAddr + 14 ] )
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tz := ( word[ postureAddr + 10 ] += word[ postureAddr + 16 ] )
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S1 := Sin(tx)
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S2 := Sin(ty)
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S3 := Sin(tz)
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C1 := Cos(tx)
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C2 := Cos(ty)
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C3 := Cos(tz)
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x := ~word[ postureAddr + 0 ]
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y := ~word[ postureAddr + 2 ]
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z := word[ postureAddr + 4 ] + (C1 ~> 9) ' add C1~>9 for test
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repeat i from 0 to numPoints
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px := ~byte[pointAddr++]
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py := ~byte[pointAddr++]
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pz := ~byte[pointAddr++]
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tx := ( px * C2 - pz * S2 ) ~> 16
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tz := ( px * S2 + pz * C2 ) ~> 16
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ty := ( tz * S1 + py * C1 ) ~> 16
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dx := ( tx * C3 + ty * S3 ) ~> 16 + x
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dy := ( ty * C3 - tx * S3 ) ~> 16 + y
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dz := ( tz * C1 - py * S1 ) ~> 16 + z
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word[destAddr ] := dx * ZX / dz
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word[destAddr+2] := dy * ZY / dz
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destAddr += 4
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word[ postureAddr + 18 ] := frame
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pri cos(angle) : x
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x := sin(angle + $800)
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pri sin(angle) : y
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'' Get sine of angle (0-8191)
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y := angle << 1 & $FFE ' address
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if angle & $800
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y := word[$F000 - y]
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else
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y := word[$E000 + y]
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if angle & $1000
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-y
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DAT
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PostureData
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' trans rot rotspeed sync
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word 0, 0, 400, 0, 0, 0, 0, 0, 200, 0
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word -120, -80, 400, 0, 0, 0, 50, 30, 40, 0
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word -120, 80, 400, 0, 0, 0, 40, 50, 30, 0
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word 120, -80, 400, 0, 0, 0, 30, 50, 40, 0
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word 120, 80, 400, 0, 0, 0, 50, 40, 30, 0
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PointSrc
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byte -20,-20,-20
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byte -20,-20, 20
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byte -20, 20, 20
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byte -20, 20,-20
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byte 20,-20,-20
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byte 20,-20, 20
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byte 20, 20, 20
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byte 20, 20,-20
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byte -40,-40,-40
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byte -40,-40, 40
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byte -40, 40, 40
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byte -40, 40,-40
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byte 40,-40,-40
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byte 40,-40, 40
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byte 40, 40, 40
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byte 40, 40,-40
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byte -70, 0, 0
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byte 70, 0, 0
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PointSrc_End
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SeqData
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' orange thing
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byte 13, 1, 16, 0, 4, 17, 5, 1, 16, 2, 6, 17, 7, 3, 16
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byte 5, 1, 0, 1, 2, 3, 0
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byte 5, 1, 4, 5, 6, 7, 4
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' black cube
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byte 10, 2, 8, 9,10,11, 8,12,13,14,15,12
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byte 2, 2, 9,13
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byte 2, 2,10,14
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byte 2, 2,11,15
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byte 0
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tvparams long 0 'status
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long 1 'enable
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'long %011_0000 'pins Old Board
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long %010_0101 'pins New Board
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long %0000 'mode
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long 0 'screen
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long 0 'colors
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long x_tiles 'hc
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long y_tiles 'vc
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long 10 'hx
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long 1 'vx
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long 0 'ho
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long 0 'vo
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long 60_000_000 '_xinfreq<<4 'broadcast
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long 0 'auralcog
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