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Rev | Author | Line No. | Line |
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31 | halyavin | 1 | ; |
2 | ; 9 Ver Screen saver |
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3 | ; 5 Ver 24 bit texture. |
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4 | ; 23/8/2004 |
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5 | ; Pavlushin Evgeni 3d cube screen saver |
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6 | ; mail: waptap@mail.ru site: www.deck4.narod.ru |
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7 | ; |
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8 | ; This programm develop on sample text3d to Mikolaj Felix 25/5/2001 |
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9 | ; mfelix@polbox.com |
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10 | ; |
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11 | |||
12 | use32 |
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13 | org 0x0 |
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14 | db 'MENUET01' ; 8 byte id |
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15 | dd 0x01 ; header version |
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16 | dd START ; start of code |
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17 | dd I_END ; size of image |
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18 | dd 0x200000 ; memory for app |
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19 | dd 0x200000 ; esp |
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20 | dd 0x0 , 0x0 ; I_Param , I_Icon |
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21 | |||
22 | include 'lang.inc' |
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23 | MAX_DEGS equ 512 ;quantity of angels 2^n.Minimize for speedup |
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24 | MAX_POINTS equ 8 ;quantity of points |
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25 | MAX_FACES equ 6 ;quantity of points |
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26 | |||
27 | START: |
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28 | finit |
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29 | call draw_window |
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30 | call clear_screen |
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31 | call init_sincos |
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32 | |||
33 | still: |
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34 | mov eax,23 ; wait for system event with 2 ms timeout |
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35 | mov ebx,2 ; wait 2 ms, then continue |
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36 | int 0x40 |
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37 | |||
38 | ; mov eax,11 ;If you want maximum speed! :) |
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39 | ; int 0x40 |
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40 | |||
41 | dec eax ; window redraw request ? |
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42 | je red |
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43 | dec eax ; key in buffer ? |
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44 | je key |
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45 | dec eax ; button in buffer ? |
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46 | je button |
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47 | |||
48 | main_loop: |
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49 | call fade_texture |
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50 | |||
51 | mov esi,cube |
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52 | mov edi,cube_rotated |
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53 | mov ecx,MAX_POINTS*3 |
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54 | copy_object: |
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55 | fild word [esi] |
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56 | fstp dword [edi] |
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57 | add esi,2 |
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58 | add edi,4 |
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59 | dec ecx |
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60 | jnz copy_object |
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61 | |||
62 | mov esi,angle_x |
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63 | mov edi,cube_rotated |
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64 | mov ecx,MAX_POINTS |
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65 | call rotate_points |
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66 | |||
67 | mov esi,cube_rotated |
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68 | mov edi,coord2d |
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69 | mov ecx,MAX_POINTS |
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70 | call translate_points |
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71 | |||
72 | call draw_textured_faces |
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73 | call clear_screen_buffer |
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74 | |||
75 | add [angle_x],1 |
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76 | add [angle_y],3 |
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77 | add [angle_z],1 |
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78 | |||
79 | jmp still |
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80 | |||
81 | red: |
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82 | call draw_window |
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83 | jmp still |
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84 | key: |
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85 | mov eax,2 |
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86 | jmp exit |
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87 | button: |
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88 | mov eax,17 |
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89 | int 0x40 |
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90 | cmp ah,1 |
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91 | jne still |
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92 | exit: |
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93 | mov eax,-1 |
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94 | int 0x40 |
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95 | |||
96 | ;Draw window |
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97 | draw_window: |
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98 | mov eax,12 ;Start |
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99 | mov ebx,1 |
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100 | int 0x40 |
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101 | |||
102 | mov eax,0 ;Draw window |
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103 | mov ebx,0*65536+(799) ;x start*65536+x size |
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104 | mov ecx,0*65536+(599) ;y start*65536+y size |
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105 | mov edx,0x00000000 ;0x03 use skinned window |
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106 | int 0x40 |
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107 | |||
108 | call clear_screen |
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109 | |||
110 | mov eax,12 ;End |
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111 | mov ebx,2 |
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112 | int 0x40 |
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113 | ret |
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114 | |||
115 | head_label: db "3D TEXTURED CUBE THE LITTLE SCREEN SAVER FOR MENUETOS. USE " |
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116 | db "800x600 SCREEN MODE FROM VIEW. PRESS ANY KEY FOR EXIT" |
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117 | hl_end: |
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118 | |||
119 | ;FADE IN FADE OUT TEXTURE |
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120 | |||
121 | x_step db 0 |
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122 | x_num db 1 |
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123 | |||
124 | fade_texture: |
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125 | mov ecx,0 |
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126 | loox: |
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127 | mov al,[file_texture+ecx] |
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128 | mov [texture+ecx],al |
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129 | inc ecx |
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130 | cmp ecx,128*128*3 |
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131 | jnae loox |
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132 | |||
133 | mov ecx,0 |
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134 | loox2: |
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135 | mov al,[file_texture+ecx] |
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136 | cmp [x_step],al |
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137 | jae xxx |
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138 | sub al,[x_step] |
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139 | jmp nnn |
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140 | xxx: |
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141 | mov al,0 |
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142 | nnn: |
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143 | mov [texture+ecx],al |
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144 | inc ecx |
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145 | cmp ecx,128*128*3 |
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146 | jnae loox2 |
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147 | |||
148 | cmp [x_step],255 |
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149 | jne no_max |
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150 | mov [x_num],-1 |
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151 | no_max: |
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152 | cmp [x_step],0 |
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153 | jne no_min |
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154 | mov [x_num],1 |
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155 | no_min: |
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156 | mov al,[x_num] |
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157 | add [x_step],al |
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158 | ret |
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159 | |||
160 | ; Clear Screen |
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161 | clear_screen: |
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162 | mov eax,13 |
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163 | mov ebx,0*65536+800 |
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164 | mov ecx,0*65536+600 |
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165 | mov edx,0 |
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166 | int 40h |
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167 | |||
168 | mov eax,4 ;Out Text |
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169 | mov ebx,8*65536+8 ;x start*65536+y start |
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170 | mov ecx,0x00ffffff ;color White |
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171 | mov edx,head_label |
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172 | mov esi,hl_end-head_label |
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173 | int 0x40 |
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174 | ret |
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175 | |||
176 | clear_screen_buffer: |
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177 | mov ebx,scrbuf |
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178 | mov ecx,800*65536+(600-40) ;sub 40 for antiflickering title |
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179 | mov edx,0*65536+40 |
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180 | mov eax,7 |
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181 | int 0x40 |
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182 | |||
183 | mov eax,4 ;Out Text |
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184 | mov ebx,8*65536+580 ;x start*65536+y start |
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185 | mov ebp,[n_step] |
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186 | shl ebp,16 |
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187 | sub ebx,ebp |
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188 | mov ecx,0x0000ff00 ;color White |
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189 | mov edx,move_text |
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190 | add edx,[step] |
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191 | mov esi,130 ;mt_end-move_text |
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192 | int 0x40 |
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193 | |||
194 | inc [n_step] |
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195 | cmp [n_step],6 |
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196 | jna t_ok |
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197 | mov [n_step],0 |
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198 | inc [step] |
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199 | cmp [step],mt_end-move_text-130 |
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200 | jng t_ok |
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201 | mov [step],0 |
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202 | t_ok: |
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203 | |||
204 | mov edi,scrbuf |
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205 | mov eax,0 ;black background |
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206 | mov ecx,800*600*3/4 ; 16000 |
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207 | cld |
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208 | rep stosd |
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209 | ret |
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210 | |||
211 | n_step dd 0 |
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212 | step dd 0 |
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213 | |||
214 | move_text: db " " |
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215 | db " " |
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216 | db " " |
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217 | db "***** 3D TEXTURED CUBE THE LITTLE SCREEN SAVER FOR " |
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218 | db "MENUET OS. SET 800x600 SCREEN MODE FROM VIEW THIS SCREEN " |
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219 | db "SAVER ***** " |
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220 | db "SITE OF THE RUSSIAN DEVELOPERS TO MENUETOS: " |
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221 | db "www.menuet.narod.ru " |
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222 | db "RUSSIAN MENUET APLICATION ARCHIVE PAGE ON: " |
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223 | db "www.meosfiles.narod.ru " |
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224 | db "AUTOR OF THIS SCREEN SAVER Pavlushin Evgeni " |
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225 | db "MY SITE: www.deck4.narod.ru (Slow update) " |
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226 | db "AND MAIL BOX: waptap@mail.ru " |
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227 | db "THANK YOU FOR USE! " |
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228 | db " " |
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229 | db " " |
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230 | db " " |
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231 | mt_end: |
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232 | |||
233 | |||
234 | ;include graphlib.asm Mikolaj Felix 9/12/2000 mfelix@polbox.com |
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235 | ;Draw textured faces proc |
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236 | |||
237 | @@rx1 dw 0 ;equ [bp-2] |
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238 | @@ry1 dw 0 ;equ [bp-4] |
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239 | @@rx2 dw 0 ;equ [bp-6] |
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240 | @@ry2 dw 0 ;equ [bp-8] |
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241 | @@rx3 dw 0 ;equ [bp-10] |
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242 | @@ry3 dw 0 ;equ [bp-12] |
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243 | @@rx4 dw 0 ;equ [bp-14] |
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244 | @@ry4 dw 0 ;equ [bp-16] |
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245 | |||
246 | draw_textured_faces: |
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247 | |||
248 | mov esi,link |
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249 | mov ecx,MAX_FACES |
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250 | dtf_loop: |
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251 | push ecx |
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252 | |||
253 | xor ebx,ebx |
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254 | mov bl,byte [esi] ; point 1 |
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255 | shl bx,2 |
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256 | mov eax,dword [coord2d+bx] ;COPY 1 FOURANGLE POINT |
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257 | mov dword [@@rx1],eax |
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258 | |||
259 | xor ebx,ebx |
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260 | mov bl,byte [esi+1] ; point 2 |
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261 | shl bx,2 |
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262 | mov eax,dword [coord2d+bx] ;COPY 2 FOURANGLE POINT |
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263 | mov dword [@@rx2],eax |
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264 | |||
265 | xor ebx,ebx |
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266 | mov bl,byte [esi+2] ; point 3 |
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267 | shl bx,2 |
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268 | mov eax,dword [coord2d+bx] ;COPY 3 FOURANGLE POINT |
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269 | mov dword [@@rx3],eax |
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270 | |||
271 | xor bh,bh ; point 4 |
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272 | mov bl,byte [esi+3] |
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273 | shl bx,2 |
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274 | mov eax,dword [coord2d+bx] ;COPY 4 FOURANGLE POINT |
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275 | mov dword [@@rx4],eax |
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276 | |||
277 | mov ax,[@@ry1] |
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278 | sub ax,[@@ry3] |
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279 | mov bx,[@@rx2] |
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280 | sub bx,[@@rx1] |
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281 | imul bx |
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282 | shl edx,16 |
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283 | mov dx,ax |
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284 | push edx |
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285 | mov ax,[@@rx1] |
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286 | sub ax,[@@rx3] |
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287 | mov bx,[@@ry2] |
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288 | sub bx,[@@ry1] |
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289 | imul bx |
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290 | shl edx,16 |
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291 | mov dx,ax |
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292 | pop ebx |
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293 | sub ebx,edx ; normal_z = (y1-y3)*(x2-x1)-(x1-x3)*(y2-y1) |
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294 | or ebx,ebx |
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295 | jl dtf_next_face ; normal_z < 0 |
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296 | |||
297 | ; FIRST PICE OF FOUR ANGLE |
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298 | |||
299 | ; Set 3 triangel puts for texture ycoord*65536+xcoord |
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300 | mov dword [@@tex_x3],127*65536+127 ;3 point |
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301 | mov dword [@@tex_x2],0*65536+127 ;2 point |
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302 | mov dword [@@tex_x1],0*65536+0 ;1 point |
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303 | ; Set texture bitmap offset |
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304 | mov [@@tex_off],texture |
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305 | ; Set 3 triangel puts coordinates |
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306 | mov eax,dword [@@rx3] |
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307 | mov dword [@@x3],eax |
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308 | mov eax,dword [@@rx2] |
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309 | mov dword [@@x2],eax |
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310 | mov eax,dword [@@rx1] |
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311 | mov dword [@@x1],eax |
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312 | call textured_triangle |
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313 | |||
314 | ; SECOND PICE OF FOUR ANGLE |
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315 | |||
316 | ; Set 3 triangel puts for texture ycoord*65536+xcoord |
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317 | mov dword [@@tex_x3],127*65536+0 ;3 point |
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318 | mov dword [@@tex_x2],127*65536+127 ;2 point |
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319 | mov dword [@@tex_x1],0*65536+0 ;1 point |
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320 | ; Set texture bitmap offset |
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321 | mov [@@tex_off],texture |
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322 | ; Set 3 triangel puts coordinates |
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323 | mov eax,dword [@@rx4] |
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324 | mov dword [@@x3],eax |
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325 | mov eax,dword [@@rx3] |
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326 | mov dword [@@x2],eax |
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327 | mov eax,dword [@@rx1] |
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328 | mov dword [@@x1],eax |
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329 | call textured_triangle |
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330 | |||
331 | dtf_next_face: |
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332 | add esi,4 |
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333 | pop ecx |
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334 | dec ecx |
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335 | jnz dtf_loop |
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336 | ret |
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337 | |||
338 | ;include tex3.asm Mikolaj Felix 15/5/2001 mfelix@polbox.com |
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339 | |||
340 | @@x1 dw 0 ;equ [bp+4] |
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341 | @@y1 dw 0 ;equ [bp+6] |
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342 | @@x2 dw 0 ;equ [bp+8] |
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343 | @@y2 dw 0 ;equ [bp+10] |
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344 | @@x3 dw 0 ;equ [bp+12] |
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345 | @@y3 dw 0 ;equ [bp+14] |
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346 | |||
347 | @@tex_off dd 0 ;equ [bp+16] |
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348 | @@tex_x1 dw 0 ;equ [bp+18] |
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349 | @@tex_y1 dw 0 ;equ [bp+20] |
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350 | @@tex_x2 dw 0 ;equ [bp+22] |
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351 | @@tex_y2 dw 0 ;equ [bp+24] |
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352 | @@tex_x3 dw 0 ;equ [bp+26] |
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353 | @@tex_y3 dw 0 ;equ [bp+28] |
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354 | |||
355 | @@dx12 dw 0 ;equ [bp-2] |
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356 | @@dx13 dw 0 ;equ [bp-4] |
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357 | @@dx23 dw 0 ;equ [bp-6] |
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358 | |||
359 | @@tex_dx12 dw 0 ;equ [bp-8] |
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360 | @@tex_dy12 dw 0 ;equ [bp-10] |
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361 | @@tex_dx13 dw 0 ;equ [bp-12] |
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362 | @@tex_dy13 dw 0 ;equ [bp-14] |
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363 | @@tex_dx23 dw 0 ;equ [bp-16] |
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364 | @@tex_dy23 dw 0 ;equ [bp-18] |
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365 | |||
366 | @@scan_x1 dw 0 ;equ [bp-20] |
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367 | @@scan_y1 dw 0 ;equ [bp-22] |
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368 | @@scan_x2 dw 0 ;equ [bp-24] |
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369 | @@scan_y2 dw 0 ;equ [bp-26] |
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370 | |||
371 | |||
372 | textured_triangle: |
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373 | |||
374 | mov ax,[@@y1] |
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375 | cmp ax,[@@y3] |
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376 | jb tt_check1 |
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377 | |||
378 | xchg ax,[@@y3] |
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379 | mov [@@y1],ax |
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380 | |||
381 | mov ax,[@@x1] |
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382 | xchg ax,[@@x3] |
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383 | mov [@@x1],ax |
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384 | |||
385 | mov ax,[@@tex_y1] |
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386 | xchg ax,[@@tex_y3] |
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387 | mov [@@tex_y1],ax |
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388 | |||
389 | mov ax,[@@tex_x1] |
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390 | xchg ax,[@@tex_x3] |
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391 | mov [@@tex_x1],ax |
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392 | tt_check1: |
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393 | mov ax,[@@y2] |
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394 | cmp ax,[@@y3] |
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395 | jb tt_check2 |
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396 | |||
397 | xchg ax,[@@y3] |
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398 | mov [@@y2],ax |
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399 | |||
400 | mov ax,[@@x2] |
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401 | xchg ax,[@@x3] |
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402 | mov [@@x2],ax |
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403 | |||
404 | mov ax,[@@tex_y2] |
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405 | xchg ax,[@@tex_y3] |
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406 | mov [@@tex_y2],ax |
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407 | |||
408 | mov ax,[@@tex_x2] |
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409 | xchg ax,[@@tex_x3] |
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410 | mov [@@tex_x2],ax |
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411 | tt_check2: |
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412 | mov ax,[@@y1] |
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413 | cmp ax,[@@y2] |
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414 | jb tt_check3 |
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415 | |||
416 | xchg ax,[@@y2] |
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417 | mov [@@y1],ax |
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418 | |||
419 | mov ax,[@@x1] |
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420 | xchg ax,[@@x2] |
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421 | mov [@@x1],ax |
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422 | |||
423 | mov ax,[@@tex_y1] |
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424 | xchg ax,[@@tex_y2] |
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425 | mov [@@tex_y1],ax |
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426 | |||
427 | mov ax,[@@tex_x1] |
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428 | xchg ax,[@@tex_x2] |
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429 | mov [@@tex_x1],ax |
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430 | tt_check3: |
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431 | |||
432 | mov bx,[@@y2] |
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433 | sub bx,[@@y1] |
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434 | jnz tt_dx12_make |
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435 | |||
436 | mov word [@@dx12],0 |
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437 | mov word [@@tex_dx12],0 |
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438 | mov word [@@tex_dy12],0 |
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439 | jmp tt_dx12_done |
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440 | tt_dx12_make: |
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441 | mov ax,[@@x2] |
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442 | sub ax,[@@x1] |
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443 | shl ax,7 |
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444 | cwd |
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445 | idiv bx |
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446 | mov [@@dx12],ax ; dx12 = (x2-x1)/(y2-y1) |
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447 | |||
448 | mov ax,[@@tex_x2] |
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449 | sub ax,[@@tex_x1] |
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450 | shl ax,7 |
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451 | cwd |
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452 | idiv bx |
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453 | mov [@@tex_dx12],ax ; tex_dx12 = (tex_x2-tex_x1)/(y2-y1) |
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454 | |||
455 | mov ax,[@@tex_y2] |
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456 | sub ax,[@@tex_y1] |
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457 | shl ax,7 |
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458 | cwd |
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459 | idiv bx |
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460 | mov [@@tex_dy12],ax ; tex_dy12 = (tex_y2-tex_y1)/(y2-y1) |
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461 | tt_dx12_done: |
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462 | |||
463 | mov bx,[@@y3] |
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464 | sub bx,[@@y1] |
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465 | jnz tt_dx13_make |
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466 | |||
467 | mov word [@@dx13],0 |
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468 | mov word [@@tex_dx13],0 |
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469 | mov word [@@tex_dy13],0 |
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470 | jmp tt_dx13_done |
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471 | tt_dx13_make: |
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472 | mov ax,[@@x3] |
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473 | sub ax,[@@x1] |
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474 | shl ax,7 |
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475 | cwd |
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476 | idiv bx |
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477 | mov [@@dx13],ax ; dx13 = (x3-x1)/(y3-y1) |
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478 | |||
479 | mov ax,[@@tex_x3] |
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480 | sub ax,[@@tex_x1] |
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481 | shl ax,7 |
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482 | cwd |
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483 | idiv bx |
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484 | mov [@@tex_dx13],ax ; tex_dx13 = (tex_x3-tex_x1)/(y3-y1) |
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485 | |||
486 | mov ax,[@@tex_y3] |
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487 | sub ax,[@@tex_y1] |
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488 | shl ax,7 |
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489 | cwd |
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490 | idiv bx |
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491 | mov [@@tex_dy13],ax ; tex_dy13 = (tex_y3-tex_x1)/(y3-y1) |
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492 | tt_dx13_done: |
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493 | |||
494 | mov bx,[@@y3] |
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495 | sub bx,[@@y2] |
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496 | jnz tt_dx23_make |
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497 | |||
498 | mov word [@@dx23],0 |
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499 | mov word [@@tex_dx23],0 |
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500 | mov word [@@tex_dy23],0 |
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501 | jmp tt_dx23_done |
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502 | tt_dx23_make: |
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503 | mov ax,[@@x3] |
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504 | sub ax,[@@x2] |
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505 | shl ax,7 |
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506 | cwd |
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507 | idiv bx |
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508 | mov [@@dx23],ax ; dx23 = (x3-x2)/(y3-y2) |
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509 | |||
510 | mov ax,[@@tex_x3] |
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511 | sub ax,[@@tex_x2] |
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512 | shl ax,7 |
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513 | cwd |
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514 | idiv bx |
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515 | mov [@@tex_dx23],ax ; tex_dx23 = (tex_x3-tex_x2)/(y3-y2) |
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516 | |||
517 | mov ax,[@@tex_y3] |
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518 | sub ax,[@@tex_y2] |
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519 | shl ax,7 |
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520 | cwd |
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521 | idiv bx |
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522 | mov [@@tex_dy23],ax ; tex_dy23 = (tex_y3-tex_y2)/(y3-y2) |
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523 | tt_dx23_done: |
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524 | |||
525 | |||
526 | mov ax,[@@x1] |
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527 | shl ax,7 |
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528 | mov bx,ax |
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529 | mov cx,[@@y1] |
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530 | |||
531 | mov dx,[@@tex_x1] |
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532 | shl dx,7 |
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533 | mov [@@scan_x1],dx |
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534 | mov [@@scan_x2],dx |
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535 | mov dx,[@@tex_y1] |
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536 | shl dx,7 |
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537 | mov [@@scan_y1],dx |
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538 | mov [@@scan_y2],dx |
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539 | tt_loop1: |
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540 | pushad |
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541 | ; push ax |
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542 | ; push bx |
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543 | ; push cx |
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544 | |||
545 | mov dx,[@@scan_y2] |
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546 | shr dx,7 |
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547 | mov [@@tex_ly2],dx ;push dx |
||
548 | mov dx,[@@scan_x2] |
||
549 | shr dx,7 |
||
550 | mov [@@tex_lx2],dx ;push dx |
||
551 | mov dx,[@@scan_y1] |
||
552 | shr dx,7 |
||
553 | mov [@@tex_ly1],dx ;push dx |
||
554 | mov dx,[@@scan_x1] |
||
555 | shr dx,7 |
||
556 | mov [@@tex_lx1],dx ;push dx |
||
557 | mov ebp,dword [@@tex_off] ;push word ptr @@tex_off |
||
558 | mov [@@tex_loff],ebp |
||
559 | |||
560 | mov [@@ly],cx ;push cx |
||
561 | mov dx,bx |
||
562 | shr dx,7 |
||
563 | mov [@@lx2],dx ;push dx |
||
564 | mov dx,ax |
||
565 | shr dx,7 |
||
566 | mov [@@lx1],dx ; push dx |
||
567 | call textured_horizontal_line |
||
568 | |||
569 | ; pop cx |
||
570 | ; pop bx |
||
571 | ; pop ax |
||
572 | popad |
||
573 | |||
574 | mov dx,[@@tex_dx13] |
||
575 | add [@@scan_x1],dx |
||
576 | mov dx,[@@tex_dx12] |
||
577 | add [@@scan_x2],dx |
||
578 | mov dx,[@@tex_dy13] |
||
579 | add [@@scan_y1],dx |
||
580 | mov dx,[@@tex_dy12] |
||
581 | add [@@scan_y2],dx |
||
582 | |||
583 | add ax,[@@dx13] |
||
584 | add bx,[@@dx12] |
||
585 | inc cx |
||
586 | cmp cx,[@@y2] |
||
587 | jb tt_loop1 |
||
588 | |||
589 | mov bx,[@@x2] |
||
590 | shl bx,7 |
||
591 | mov cx,[@@y2] |
||
592 | |||
593 | mov dx,[@@tex_x2] |
||
594 | shl dx,7 |
||
595 | mov [@@scan_x2],dx |
||
596 | mov dx,[@@tex_y2] |
||
597 | shl dx,7 |
||
598 | mov [@@scan_y2],dx |
||
599 | tt_loop2: |
||
600 | |||
601 | pushad |
||
602 | ; push ax |
||
603 | ; push bx |
||
604 | ; push cx |
||
605 | |||
606 | mov dx,[@@scan_y2] |
||
607 | shr dx,7 |
||
608 | mov [@@tex_ly2],dx ;push dx |
||
609 | mov dx,[@@scan_x2] |
||
610 | shr dx,7 |
||
611 | mov [@@tex_lx2],dx ;push dx |
||
612 | mov dx,[@@scan_y1] |
||
613 | shr dx,7 |
||
614 | mov [@@tex_ly1],dx ;push dx |
||
615 | mov dx,[@@scan_x1] |
||
616 | shr dx,7 |
||
617 | mov [@@tex_lx1],dx ;push dx |
||
618 | mov ebp,dword [@@tex_off] ;push word ptr @@tex_off |
||
619 | mov [@@tex_loff],ebp |
||
620 | |||
621 | mov [@@ly],cx ;push cx |
||
622 | mov dx,bx |
||
623 | shr dx,7 |
||
624 | mov [@@lx2],dx ;push dx |
||
625 | mov dx,ax |
||
626 | shr dx,7 |
||
627 | mov [@@lx1],dx ; push dx |
||
628 | call textured_horizontal_line |
||
629 | |||
630 | ; pop cx |
||
631 | ; pop bx |
||
632 | ; pop ax |
||
633 | popad |
||
634 | |||
635 | mov dx,[@@tex_dx13] |
||
636 | add [@@scan_x1],dx |
||
637 | mov dx,[@@tex_dx23] |
||
638 | add [@@scan_x2],dx |
||
639 | mov dx,[@@tex_dy13] |
||
640 | add [@@scan_y1],dx |
||
641 | mov dx,[@@tex_dy23] |
||
642 | add [@@scan_y2],dx |
||
643 | |||
644 | add ax,[@@dx13] |
||
645 | add bx,[@@dx23] |
||
646 | inc cx |
||
647 | cmp cx,[@@y3] |
||
648 | jb tt_loop2 |
||
649 | ret |
||
650 | |||
651 | @@lx1 dw 0 ;equ [bp+4] |
||
652 | @@lx2 dw 0 ;equ [bp+6] |
||
653 | @@ly dw 0 ;equ [bp+8] |
||
654 | |||
655 | @@tex_loff dd 0 ;equ [bp+10] |
||
656 | @@tex_lx1 dw 0 ;equ [bp+12] |
||
657 | @@tex_ly1 dw 0 ;equ [bp+14] |
||
658 | @@tex_lx2 dw 0 ;equ [bp+16] |
||
659 | @@tex_ly2 dw 0 ;equ [bp+18] |
||
660 | |||
661 | @@tex_ldx dw 0 ;equ [bp-2] |
||
662 | @@tex_ldy dw 0 ;equ [bp-4] |
||
663 | |||
664 | textured_horizontal_line: |
||
665 | |||
666 | mov ax,[@@lx1] |
||
667 | cmp ax,[@@lx2] |
||
668 | je thl_quit |
||
669 | jb thl_ok |
||
670 | |||
671 | xchg ax,[@@lx2] |
||
672 | mov [@@lx1],ax |
||
673 | |||
674 | mov ax,[@@tex_lx1] |
||
675 | xchg ax,[@@tex_lx2] |
||
676 | mov [@@tex_lx1],ax |
||
677 | |||
678 | mov ax,[@@tex_ly1] |
||
679 | xchg ax,[@@tex_ly2] |
||
680 | mov [@@tex_ly1],ax |
||
681 | thl_ok: |
||
682 | |||
683 | ; Fast method |
||
684 | ; mov edi,0 |
||
685 | ; mov di,[@@ly] ;edi = calculating start of line |
||
686 | ; mov ax,di |
||
687 | ; shl di,6 ;ly*64 |
||
688 | ; shl ax,8 ;ly*256 |
||
689 | ; add di,ax ;di = (ly*64)+(ly*256) |
||
690 | ; add di,[@@lx1] ;di = ly*320+lx1 |
||
691 | ; mov eax,edi |
||
692 | ; shl eax,1 |
||
693 | ; add edi,eax |
||
694 | ; add edi,scrbuf |
||
695 | |||
696 | ; Uneversal method |
||
697 | movsx edi,[@@ly] |
||
698 | mov eax,800 ;di = ly*320+lx1 |
||
699 | mul edi |
||
700 | movsx ebx,[@@lx1] |
||
701 | add eax,ebx ;[@@lx1] |
||
702 | mov edi,3 |
||
703 | mul edi |
||
704 | mov edi,eax |
||
705 | add edi,scrbuf |
||
706 | |||
707 | mov cx,[@@lx2] |
||
708 | sub cx,[@@lx1] |
||
709 | |||
710 | mov ax,[@@tex_lx2] |
||
711 | sub ax,[@@tex_lx1] |
||
712 | shl ax,7 |
||
713 | cwd |
||
714 | idiv cx |
||
715 | mov [@@tex_ldx],ax ; tex_dx = (tex_x2-tex_x1)/(x2-x1) |
||
716 | |||
717 | mov ax,[@@tex_ly2] |
||
718 | sub ax,[@@tex_ly1] |
||
719 | shl ax,7 |
||
720 | cwd |
||
721 | idiv cx |
||
722 | mov [@@tex_ldy],ax ; tex_dy = (tex_y2-tex_y1)/(x2-x1) |
||
723 | |||
724 | cld |
||
725 | inc cx |
||
726 | mov ax,[@@tex_lx1] |
||
727 | shl ax,7 |
||
728 | mov bx,[@@tex_ly1] |
||
729 | shl bx,7 |
||
730 | |||
731 | thl_loop: |
||
732 | mov dx,ax |
||
733 | push bx |
||
734 | |||
735 | and bx,0ff80h |
||
736 | shr ax,7 |
||
737 | add bx,ax |
||
738 | mov ebp,0 |
||
739 | mov bp,bx |
||
740 | mov eax,ebp |
||
741 | shl eax,1 |
||
742 | add ebp,eax |
||
743 | add ebp,[@@tex_loff] |
||
744 | |||
745 | mov al,byte [ebp+2] |
||
746 | stosb |
||
747 | mov al,byte [ebp+1] |
||
748 | stosb |
||
749 | mov al,byte [ebp] |
||
750 | stosb |
||
751 | |||
752 | pop bx |
||
753 | mov ax,dx |
||
754 | |||
755 | add ax,[@@tex_ldx] |
||
756 | add bx,[@@tex_ldy] |
||
757 | dec cx |
||
758 | jnz thl_loop |
||
759 | thl_quit: |
||
760 | ret |
||
761 | |||
762 | ;include math3d_2.asm |
||
763 | ; Mikolaj Felix 20/06/2001 |
||
764 | ; mfelix@polbox.com |
||
765 | |||
766 | ;------------------------------------------------------------ |
||
767 | ; ds:si - offset to angles (int) |
||
768 | ; ds:di - offset to array of 3d points |
||
769 | ; cx - number of points |
||
770 | ;------------------------------------------------------------ |
||
771 | |||
772 | @@sin_x dd 0 ;equ dword ptr [bp-4] |
||
773 | @@cos_x dd 0 ;equ dword ptr [bp-8] |
||
774 | @@sin_y dd 0 ;equ dword ptr [bp-12] |
||
775 | @@cos_y dd 0 ;equ dword ptr [bp-16] |
||
776 | @@sin_z dd 0 ;equ dword ptr [bp-20] |
||
777 | @@cos_z dd 0 ;equ dword ptr [bp-24] |
||
778 | |||
779 | @@x equ dword [edi] |
||
780 | @@y equ dword [edi+4] |
||
781 | @@z equ dword [edi+8] |
||
782 | |||
783 | rotate_points: |
||
784 | |||
785 | push edi |
||
786 | mov edi,@@sin_x |
||
787 | mov edx,3 |
||
788 | rp_sin_cos: |
||
789 | mov bx,word [esi] |
||
790 | and bx,MAX_DEGS-1 |
||
791 | shl bx,2 |
||
792 | mov eax,dword [sintab+bx] |
||
793 | mov dword [edi],eax |
||
794 | mov eax,dword [costab+bx] |
||
795 | mov dword [edi+4],eax |
||
796 | add edi,8 |
||
797 | add esi,2 |
||
798 | dec edx |
||
799 | jnz rp_sin_cos |
||
800 | pop edi |
||
801 | |||
802 | rp_rotate: |
||
803 | fld @@y |
||
804 | fmul [@@cos_x] |
||
805 | fld @@z |
||
806 | fmul [@@sin_x] |
||
807 | fsubp st1,st |
||
808 | fld @@y |
||
809 | fxch st1 |
||
810 | fstp @@y ; Yrotated = Cos (A)*Y - Sin (A)*Z |
||
811 | fmul [@@sin_x] |
||
812 | fld @@z |
||
813 | fmul [@@cos_x] |
||
814 | faddp st1,st |
||
815 | fstp @@z ; Zrotated = Sin (A)*Y + Cos (A)*Z |
||
816 | |||
817 | fld @@x |
||
818 | fmul [@@cos_y] |
||
819 | fld @@z |
||
820 | fmul [@@sin_y] |
||
821 | fsubp st1,st |
||
822 | fld @@x |
||
823 | fxch st1 |
||
824 | fstp @@x ; Xrotated = Cos (A)*X - Sin (A)*Z |
||
825 | fmul [@@sin_y] |
||
826 | fld @@z |
||
827 | fmul [@@cos_y] |
||
828 | faddp st1,st |
||
829 | fstp @@z ; Zrotated = Sin (A)*X + Cos (A)*Z |
||
830 | |||
831 | fld @@x |
||
832 | fmul [@@cos_z] |
||
833 | fld @@y |
||
834 | fmul [@@sin_z] |
||
835 | fsubp st1,st |
||
836 | fld @@x |
||
837 | fxch st1 |
||
838 | fstp @@x ; Xrotated = Cos (A)*X - Sin (A)*Y |
||
839 | fmul [@@sin_z] |
||
840 | fld @@y |
||
841 | fmul [@@cos_z] |
||
842 | faddp st1,st |
||
843 | fstp @@y ; Yrotated = Sin (A)*X + Cos (A)*Y |
||
844 | |||
845 | add edi,12 |
||
846 | dec ecx |
||
847 | jnz rp_rotate |
||
848 | ret |
||
849 | |||
850 | ;------------------------------------------------------------ |
||
851 | ; ds:si - offset to array of 3d points |
||
852 | ; ds:di - offset to 2d points |
||
853 | ; cx - number of points |
||
854 | ;------------------------------------------------------------ |
||
855 | |||
856 | translate_points: |
||
857 | |||
858 | fld dword [esi+8] |
||
859 | fadd [perspective] |
||
860 | |||
861 | fld dword [esi] |
||
862 | fmul [perspective] |
||
863 | fdiv st,st1 |
||
864 | fadd [correct_x] |
||
865 | fistp word [edi] ; x2d = (x*persp)/(z+persp)+correct_x |
||
866 | |||
867 | fld dword [esi+4] |
||
868 | fmul [perspective] |
||
869 | fdivrp st1,st |
||
870 | fadd [correct_y] |
||
871 | fistp word [edi+2] ; y2d = (y*persp)/(z+persp)+correct_y |
||
872 | |||
873 | add esi,12 |
||
874 | add edi,4 |
||
875 | dec ecx |
||
876 | jnz translate_points |
||
877 | ret |
||
878 | |||
879 | ; initalize SIN&COS table |
||
880 | |||
881 | @@temp1 dd 0 ;dword ptr [bp-4] |
||
882 | @@temp2 dd 0 ;dword ptr [bp-8] |
||
883 | |||
884 | init_sincos: |
||
885 | mov [@@temp1],0 |
||
886 | fldpi |
||
887 | mov [@@temp2],MAX_DEGS/2 |
||
888 | fidiv [@@temp2] |
||
889 | fstp [@@temp2] |
||
890 | |||
891 | xor edi,edi |
||
892 | mov ecx,MAX_DEGS |
||
893 | isc_loop: |
||
894 | fld [@@temp1] |
||
895 | fld st0 |
||
896 | fld st0 |
||
897 | fsin |
||
898 | fstp dword [sintab+edi] |
||
899 | fcos |
||
900 | fstp dword [costab+edi] |
||
901 | fadd [@@temp2] |
||
902 | fstp [@@temp1] |
||
903 | |||
904 | add edi,4 |
||
905 | dec ecx |
||
906 | jnz isc_loop |
||
907 | ret |
||
908 | |||
909 | perspective dd 256.0 |
||
910 | correct_x dd 400.0 |
||
911 | correct_y dd 300.0 |
||
912 | |||
913 | angle_x dw 0 |
||
914 | angle_y dw 0 |
||
915 | angle_z dw 0 |
||
916 | |||
917 | file_texture: |
||
918 | file 'texture.raw' |
||
919 | |||
920 | cube dw -50,-50,50, 50,-50,50, 50,50,50, -50,50,50 |
||
921 | dw -50,-50,-50, 50,-50,-50, 50,50,-50, -50,50,-50 |
||
922 | |||
923 | link db 0,1,2,3, 5,4,7,6, 1,5,6,2, 4,0,3,7, 4,5,1,0, 3,2,6,7 |
||
924 | |||
925 | sintab: |
||
926 | rd MAX_DEGS |
||
927 | costab: |
||
928 | rd MAX_DEGS |
||
929 | |||
930 | cube_rotated: |
||
931 | rd MAX_POINTS*3 |
||
932 | coord2d: |
||
933 | rw MAX_POINTS*2 |
||
934 | texture: |
||
935 | rb 128*128*3 |
||
936 | scrbuf: |
||
937 | |||
938 | I_END:> |