forked from KolibriOS/kolibrios
436 lines
9.3 KiB
NASM
436 lines
9.3 KiB
NASM
;
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; Spiral demo using Turtle graphics
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;
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; Written in UASM by 0CorErr
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; Translated to FASM by dunkaist
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;
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use32
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org 0
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db 'MENUET01'
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dd 0x01,start,i_end,e_end,e_end,params,0
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include 'proc32.inc'
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include 'macros.inc'
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struct RGB
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Blue db ?
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Green db ?
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Red db ?
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ends
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struct HSV
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Hue dw ?
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Sat db ?
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Val db ?
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ends
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struct Turtle
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PosX dd ?
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PosY dd ?
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Orientation dd ?
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PenColor HSV
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ends
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proc forward _t, _d
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locals
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.x1 dd ?
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.x2 dd ?
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.y1 dd ?
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.y2 dd ?
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endl
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mov eax, [_t]
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fld [eax+Turtle.PosX]
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fistp [.x1]
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fld [eax+Turtle.PosY]
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fistp [.y1]
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fld [eax+Turtle.Orientation]
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fcos
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fmul [_d]
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fadd [eax+Turtle.PosX]
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fstp [eax+Turtle.PosX]
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fld [eax+Turtle.Orientation]
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fsin
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fmul [_d]
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fadd [eax+Turtle.PosY]
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fstp [eax+Turtle.PosY]
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fld [eax+Turtle.PosX]
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fistp [.x2]
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fld [eax+Turtle.PosY]
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fistp [.y2]
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mov ebx, [.x1]
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shl ebx, 16
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add ebx, [.x2]
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mov ecx, [.y1]
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shl ecx, 16
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add ecx, [.y2]
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mov edx, [color]
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mcall 38
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ret
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endp
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proc turn _t, _degrees
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mov eax, [_t]
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fldpi
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fmul [_degrees]
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fdiv [float_180]
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fadd [eax+Turtle.Orientation]
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fstp [eax+Turtle.Orientation]
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ret
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endp
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proc reposition _t, _x, _y
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mov eax, [_t]
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mov ecx, [_x]
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mov [eax+Turtle.PosX], ecx
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mov ecx, [_y]
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mov [eax+Turtle.PosY], ecx
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ret
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endp
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; H = 0..360, S = 0..255, V = 0..255 --> R = 0..255, G = 0..255, B = 0..255
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proc hsv_to_rgb uses ebx, _h, _s, _v, _rgb
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locals
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.f dd ?
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.vs dd ?
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endl
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mov ebx, [_rgb]
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cmp [_s], 0
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jnz @f
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mov eax, [_v]
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mov [ebx+RGB.Red], al
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mov [ebx+RGB.Green], al
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mov [ebx+RGB.Blue], al
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jmp .end
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@@:
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cmp [_h], 360
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jnz @f
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mov [_h], 0
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@@:
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mov eax, [_v]
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mul [_s]
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mov [.vs], eax
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mov eax, [_h]
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mov ecx, 60
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xor edx, edx
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div ecx
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mov [.f], edx
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test eax, eax
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jnz @f
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mov eax, [_v]
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mov [ebx+RGB.Red], al
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mov eax, 60
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sub eax, [.f]
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mul [.vs]
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xor edx, edx
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div [dword_255_mul_60]
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mov edx, [_v]
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sub dl, al
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mov [ebx+RGB.Green], dl
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mov eax, [.vs]
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xor edx, edx
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div [dword_255]
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mov edx, [_v]
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sub dl, al
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mov [ebx+RGB.Blue], dl
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jmp .end
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@@:
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cmp eax, 1
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jnz @f
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mov eax, [.vs]
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mul [.f]
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xor edx, edx
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div [dword_255_mul_60]
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mov edx, [_v]
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sub dl, al
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mov [ebx+RGB.Red], dl
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mov eax, [_v]
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mov [ebx+RGB.Green], al
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mov eax, [.vs]
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xor edx, edx
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div [dword_255]
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mov edx, [_v]
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sub dl, al
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mov [ebx+RGB.Blue], dl
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jmp .end
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@@:
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cmp eax, 2
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jnz @f
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mov eax, [.vs]
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xor edx, edx
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div [dword_255]
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mov edx, [_v]
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sub dl, al
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mov [ebx+RGB.Red], dl
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mov eax, [_v]
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mov [ebx+RGB.Green], al
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mov eax, 60
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sub eax, [.f]
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mul [.vs]
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xor edx, edx
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div [dword_255_mul_60]
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mov edx, [_v]
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sub dl, al
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mov [ebx+RGB.Blue], dl
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jmp .end
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@@:
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cmp eax, 3
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jnz @f
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mov eax, [.vs]
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xor edx, edx
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div [dword_255]
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mov edx, [_v]
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sub dl, al
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mov [ebx+RGB.Red], dl
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mov eax, [.vs]
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mul [.f]
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xor edx, edx
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div [dword_255_mul_60]
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mov edx, [_v]
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sub dl, al
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mov [ebx+RGB.Green], dl
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mov eax, [_v]
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mov [ebx+RGB.Blue], al
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jmp .end
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@@:
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cmp eax, 4
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jnz @f
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mov eax, 60
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sub eax, [.f]
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mul [.vs]
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xor edx, edx
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div [dword_255_mul_60]
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mov edx, [_v]
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sub dl, al
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mov [ebx+RGB.Red], dl
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mov eax, [.vs]
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xor edx, edx
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div [dword_255]
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mov edx, [_v]
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sub dl, al
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mov [ebx+RGB.Green], dl
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mov eax, [_v]
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mov [ebx+RGB.Blue], al
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jmp .end
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@@:
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cmp eax, 5
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jnz @f
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mov eax, [_v]
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mov [ebx+RGB.Red], al
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mov eax, [.vs]
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xor edx, edx
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div [dword_255]
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mov edx, [_v]
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sub dl, al
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mov [ebx+RGB.Green], dl
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mov eax, [.vs]
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mul [.f]
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xor edx, edx
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div [dword_255_mul_60]
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mov edx, [_v]
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sub dl, al
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mov [ebx+RGB.Blue], dl
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@@:
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.end:
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ret
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endp
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proc hue_shift _t, _n
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mov ecx, [_t]
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movzx eax, [ecx+Turtle.PenColor.Hue]
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add eax, [_n]
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xor edx, edx
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div [dword_360]
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mov [ecx+Turtle.PenColor.Hue], dx
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movzx eax, [ecx+Turtle.PenColor.Hue]
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movzx edx, [ecx+Turtle.PenColor.Sat]
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movzx ecx, [ecx+Turtle.PenColor.Val]
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stdcall hsv_to_rgb, eax, edx, ecx, color
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ret
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endp
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proc query_perf
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locals
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.diff dd ?
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endl
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mcall 26, 9
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sub eax, [frame_start]
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mov [.diff], eax
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fild [.diff]
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fild [freq]
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fdivrp
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fstp [instant]
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mcall 26, 9
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mov [frame_start], eax
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ret
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endp
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proc waiting
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fld [max_frame_rate]
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fld [instant]
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fcompp
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fstsw ax
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sahf
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jc @f
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inc [sleep_time]
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jmp .end
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@@:
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fld [min_frame_rate]
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fld [instant]
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fcompp
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fstsw ax
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sahf
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jnc .end
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cmp [sleep_time], 0
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jz .end
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dec [sleep_time]
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.end:
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mcall 5, [sleep_time]
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ret
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endp
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proc drawing
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locals
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.i dd ?
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.n dd ?
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.posx dd ?
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.posy dd ?
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endl
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mov [turtle.Orientation], 0
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mov eax, [window_width]
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mov ecx, [window_height]
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shr eax, 1
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shr ecx, 1
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mov [.posx], eax
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mov [.posy], ecx
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fild [.posx]
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fstp [.posx]
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fild [.posy]
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fstp [.posy]
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stdcall reposition, turtle, [.posx], [.posy]
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mov [.n], 5.0
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mov eax, [window_height]
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imul eax, 15
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shr eax, 4
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mov ecx, eax
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xor edx, edx
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div [dword_360]
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neg edx
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add edx, ecx
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sub edx, 10
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mov [.i], edx
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@@:
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stdcall hue_shift, turtle, 1
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stdcall forward, turtle, [.n]
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stdcall turn, turtle, 72.5
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fld [.n]
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fadd [ndelta]
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fstp [.n]
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dec [.i]
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jnz @b
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ret
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endp
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start:
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cmp dword[params], '@ss'
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setz [screensaver]
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mov ebx, EVM_REDRAW + EVM_KEY
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cmovz ebx, EVM_REDRAW + EVM_KEY + EVM_MOUSE
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mcall 40
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mov edi, transparent_cursor
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xor eax, eax
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mov ecx, 32*32
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rep stosd
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mcall 37, 4, transparent_cursor, 2
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mov ecx, eax
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mcall 37, 5
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mcall 14
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add eax, 0x00010001
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movzx ecx, ax
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shr eax, 16
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mov [window_width], eax
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mov [window_height], ecx
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mcall 26, 9
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mov [frame_start], eax
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.still:
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mcall 11
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dec eax
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js .draw_spiral ; no event
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jnz .quit
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mcall 12, 1
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mcall 0, [window_width], [window_height], 0, 0x01000000
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mcall 12, 2
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.draw_spiral:
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cmp [screensaver], 0
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jz @f
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mcall 9, proc_info, -1
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cmp [proc_info.window_stack_position], ax
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jnz .quit
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@@:
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stdcall query_perf
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stdcall drawing
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stdcall waiting
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jmp .still
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.quit:
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cmp [screensaver], 0
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jz @f
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mcall 70, f70
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@@:
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mcall -1
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align 4
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dword_255_mul_60 dd 255 * 60
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dword_255 dd 255
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dword_360 dd 360
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float_180 dd 180.0
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ndelta dd 0.6 ; used in drawing Proc: n = n + ndelta
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max_frame_rate dd 15.0 ; to keep the FrameRate
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min_frame_rate dd 8.0 ; around min_frame_rate..max_frame_rate FPS
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freq dd 100 ; GetTickCount return count of 1/100s of second
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instant dd 0.0
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sleep_time dd 0
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turtle Turtle 0.0, 0.0, 0.0, <180, 255, 255>
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f70: ; run
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dd 7, 0, 0, 0, 0
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db '/sys/@ss',0
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i_end:
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align 4
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window_width dd ?
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window_height dd ?
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frame_start dd ?
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color dd ?
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proc_info process_information
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params rb 0x400
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transparent_cursor rd 32*32
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screensaver db ?
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align 4
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rb 0x200
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e_end:
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