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Rev | Author | Line No. | Line |
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6387 | leency | 1 | ; |
2 | ; application : Tiny ray tracer |
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3 | ; compilator : Fasm |
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4 | ; system : MenuetOS64/KolibriOS |
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5 | ; author : Maciej Guba aka macgub |
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6 | ; email : macgub3@wp.pl |
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7 | ; web : http://macgub.hekko.pl |
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8 | |||
9 | timeout equ 3 |
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10 | XRES equ 500 ; window size |
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11 | YRES equ 500 |
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12 | maxx = XRES |
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13 | maxy = YRES |
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14 | use32 |
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15 | |||
16 | org 0x0 |
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17 | |||
18 | db 'MENUET01' ; 8 byte id |
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19 | dd 0x01 ; header version |
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20 | dd START ; start of code |
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21 | dd I_END ; size of image |
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22 | dd I_END ; memory for app |
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23 | dd I_END ; esp |
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24 | dd 0x0 , 0x0 ; I_Param , I_Icon |
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25 | |||
26 | START: ; start of execution |
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27 | |||
28 | call draw_window |
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29 | |||
30 | still: |
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31 | |||
32 | mov eax,23 ; wait here for event |
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33 | mov ebx,timeout |
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34 | int 0x40 |
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35 | ; mov eax,11 ; check for event no wait |
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36 | ; int 0x40 |
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37 | |||
38 | cmp eax,1 ; redraw request ? |
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39 | je red |
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40 | cmp eax,2 ; key in buffer ? |
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41 | je key |
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42 | cmp eax,3 ; button in buffer ? |
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43 | je button |
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44 | |||
45 | jmp noclose |
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46 | |||
47 | red: ; redraw |
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48 | call draw_window |
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49 | jmp still |
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50 | |||
51 | key: ; key |
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52 | mov eax,2 ; just read it and ignore |
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53 | int 0x40 |
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54 | jmp still |
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55 | |||
56 | button: ; button |
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57 | mov eax,17 ; get id |
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58 | int 0x40 |
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59 | |||
60 | cmp ah,1 ; button id=1 ? |
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61 | jne noclose |
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62 | |||
63 | mov eax,-1 ; close this program |
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64 | int 0x40 |
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65 | noclose: |
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66 | |||
67 | ; mov eax,13 |
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68 | ; mov ebx,20*65536+maxx-25 |
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69 | ; mov ecx,20*65536+maxy-25 |
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70 | ; xor edx,edx |
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71 | ; int 0x40 |
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72 | |||
73 | mov edi,screen |
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74 | mov ecx,maxx*maxy*3/4 |
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75 | xor eax,eax |
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76 | cld |
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77 | rep stosd |
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78 | |||
79 | add [deg_counter],1 |
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80 | cmp [deg_counter],360 |
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81 | jne @f |
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82 | mov [deg_counter],0 |
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83 | @@: |
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84 | fninit |
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85 | fld [one_deg] |
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86 | fimul [deg_counter] |
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87 | fsincos |
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88 | fstp [sin] |
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89 | fstp [cos] |
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90 | |||
91 | mov ecx,MAX_SPHERES ;MAX_LIGHTS |
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92 | mov esi,non_rot_sphere ;light |
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93 | mov edi,sphere |
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94 | |||
95 | .rotary: |
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96 | |||
97 | |||
98 | fld dword[esi] |
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99 | fsub [xo] |
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100 | fmul [cos] |
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101 | fld dword[esi+8] |
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102 | fsub [zo] |
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103 | fmul [sin] |
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104 | fchs |
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105 | faddp |
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106 | fadd [xo] ; top of stack - new 'x' |
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107 | fstp dword[edi] |
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108 | |||
109 | fld dword[esi+8] |
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110 | fsub [zo] |
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111 | fmul [cos] |
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112 | fld dword[esi] |
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113 | fsub dword[xo] |
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114 | fmul [sin] |
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115 | faddp |
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116 | fadd [zo] |
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117 | fstp dword[edi+8] |
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118 | ; fld dword[esi+4] |
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119 | ; fstp dword[edi+4] |
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120 | push dword[esi+4] |
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121 | pop dword[edi+4] |
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122 | mov dword[edi+12],0.0 |
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123 | |||
124 | add esi,12 |
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125 | add edi,16 |
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126 | sub ecx,1 |
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127 | jnz .rotary |
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128 | |||
129 | mov ecx,MAX_LIGHTS |
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130 | mov esi,non_rot_light |
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131 | mov edi,light |
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132 | |||
133 | .rotary_lights: |
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134 | |||
135 | |||
136 | fld dword[esi] |
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137 | fsub [xo] |
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138 | fmul [cos] |
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139 | fld dword[esi+4] |
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140 | fsub [yo] |
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141 | fmul [sin] |
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142 | fchs |
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143 | faddp |
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144 | fadd [xo] ; top of stack - new 'x' |
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145 | fstp dword[edi] |
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146 | |||
147 | fld dword[esi] |
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148 | fsub [xo] |
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149 | fmul [sin] |
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150 | fchs |
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151 | fld dword[esi+4] |
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152 | fsub dword[yo] |
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153 | fmul [cos] |
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154 | faddp |
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155 | fadd [yo] |
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156 | fstp dword[edi+4] |
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157 | ; fld dword[esi+8] |
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158 | ; fstp dword[edi+8] |
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159 | push dword[esi+8] |
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160 | pop dword[edi+8] |
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161 | mov dword[edi+12],0.0 |
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162 | |||
163 | add esi,12 |
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164 | add edi,16 |
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165 | sub ecx,1 |
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166 | jnz .rotary_lights |
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167 | |||
168 | |||
169 | |||
170 | call main_loop |
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171 | |||
6506 | leency | 172 | mov eax,7 |
173 | mov ebx,screen |
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174 | mov ecx,maxx*65536+maxy |
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175 | xor edx,edx |
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176 | int 0x40 |
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6387 | leency | 177 | |
178 | |||
179 | |||
6506 | leency | 180 | |
181 | |||
6387 | leency | 182 | jmp still |
183 | |||
184 | |||
185 | |||
6507 | leency | 186 | include 'ray.inc' |
6387 | leency | 187 | |
188 | ; ********************************************* |
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189 | ; ******* WINDOW DEFINITIONS AND DRAW ******** |
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190 | ; ********************************************* |
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191 | draw_window: |
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6506 | leency | 192 | mov eax,12 ; function 12:tell os about windowdraw |
193 | mov ebx,1 ; 2, end of draw |
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194 | int 0x40 |
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6387 | leency | 195 | |
6506 | leency | 196 | mov eax,48 ; get skin height |
197 | mov ebx,4 |
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198 | int 0x40 |
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6387 | leency | 199 | |
6506 | leency | 200 | lea ecx,[eax + (100 shl 16) + maxy+4] |
201 | mov edi,title |
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202 | xor eax,eax |
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203 | mov ebx,100*65536+maxx+9 ; [x start] *65536 + [x size] |
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204 | mov edx,0x74000000 ; window type |
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205 | int 0x40 |
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6387 | leency | 206 | |
6506 | leency | 207 | mov eax,12 ; function 12:tell os about windowdraw |
208 | mov ebx,2 ; 2, end of draw |
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209 | int 0x40 |
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6387 | leency | 210 | |
211 | ret |
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212 | |||
213 | title db 'Ray tracing',0 |
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214 | xo dd 0.5 |
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215 | yo dd 0.5 |
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6506 | leency | 216 | zo dd 0.5 |
6387 | leency | 217 | deg_counter dw 0 |
218 | one_deg dd 0.017453 |
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219 | include 'dataray.inc' |
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220 | sin dd ? |
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221 | cos dd ? |
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222 | screen rb XRES * YRES * 3 |
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223 | mem_stack: |
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224 | rb 65536 |
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225 | I_END: |
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226 |