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Rev | Author | Line No. | Line |
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5153 | IgorA | 1 | |
2 | align 4 |
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3 | proc gl_print_matrix uses eax ebx ecx edi, m:dword, rows:dword |
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4 | mov ecx,[rows] |
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5 | cmp ecx,1 |
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6 | jl .end_f |
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7 | mov ebx,[m] |
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8 | mov word[NumberSymbolsAD],3 |
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9 | finit |
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10 | @@: |
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11 | lea edi,[buf_param] |
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12 | mov byte[edi],0 |
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13 | |||
14 | |||
15 | fstp qword[Data_Double] |
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16 | call DoubleFloat_to_String |
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17 | stdcall str_cat, edi,Data_String |
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18 | |||
19 | |||
20 | stdcall str_len,edi |
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21 | add edi,eax |
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22 | |||
23 | |||
24 | fstp qword[Data_Double] |
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25 | call DoubleFloat_to_String |
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26 | stdcall str_cat, edi,Data_String |
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27 | |||
28 | |||
29 | stdcall str_len,edi |
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30 | add edi,eax |
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31 | |||
32 | |||
33 | fstp qword[Data_Double] |
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34 | call DoubleFloat_to_String |
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35 | stdcall str_cat, edi,Data_String |
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36 | |||
37 | |||
38 | stdcall str_len,edi |
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39 | add edi,eax |
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40 | |||
41 | |||
42 | fstp qword[Data_Double] |
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43 | call DoubleFloat_to_String |
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44 | stdcall str_cat, edi,Data_String |
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45 | |||
46 | |||
47 | stdcall dbg_print,txt_sp,buf_param |
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48 | |||
49 | |||
50 | dec ecx |
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51 | cmp ecx,0 |
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52 | jg @b |
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53 | .end_f: |
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54 | ret |
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55 | endp |
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56 | end if |
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57 | |||
58 | |||
59 | { |
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60 | local .end_0 |
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61 | xor reg,reg |
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62 | cmp dword[context+GLContext.matrix_mode],1 |
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6523 | IgorA | 63 | jg .end_0 |
5153 | IgorA | 64 | inc reg |
65 | .end_0: |
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66 | mov dword[context+GLContext.matrix_model_projection_updated],reg |
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6523 | IgorA | 67 | } |
5153 | IgorA | 68 | |
69 | |||
70 | proc glopMatrixMode uses eax ebx, context:dword, p:dword |
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71 | mov eax,[context] |
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72 | mov ebx,[p] |
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73 | |||
74 | |||
75 | jne @f |
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76 | mov dword[eax+GLContext.matrix_mode],0 |
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6523 | IgorA | 77 | jmp .end_f |
5153 | IgorA | 78 | @@: |
79 | cmp dword[ebx+4],GL_PROJECTION |
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80 | jne @f |
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81 | mov dword[eax+GLContext.matrix_mode],1 |
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6523 | IgorA | 82 | jmp .end_f |
5153 | IgorA | 83 | @@: |
84 | cmp dword[ebx+4],GL_TEXTURE |
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85 | jne .def |
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86 | mov dword[eax+GLContext.matrix_mode],2 |
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6523 | IgorA | 87 | jmp .end_f |
5153 | IgorA | 88 | .def: |
89 | ;assert(0); |
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90 | .end_f: |
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91 | ret |
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92 | endp |
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93 | |||
94 | |||
95 | proc glopLoadMatrix uses eax edi esi, context:dword, p:dword |
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96 | mov eax,[context] |
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97 | mov edi,[eax+GLContext.matrix_mode] |
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6523 | IgorA | 98 | lea edi,[eax+4*edi] |
8062 | IgorA | 99 | mov edi,dword[edi+GLContext.matrix_stack_ptr] |
6523 | IgorA | 100 | |
5153 | IgorA | 101 | |
102 | add esi,4 |
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103 | stdcall gl_M4_Transpose,edi,esi ;транспонируем входную матрицу в матрицу context.matrix_stack_ptr[context.matrix_mode] |
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104 | |||
105 | |||
106 | ret |
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107 | endp |
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108 | |||
109 | |||
110 | proc glopLoadIdentity uses eax ebx, context:dword, p:dword |
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111 | mov eax,[context] |
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112 | mov ebx,[eax+GLContext.matrix_mode] |
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6523 | IgorA | 113 | lea ebx,[eax+4*ebx] |
8062 | IgorA | 114 | |
5153 | IgorA | 115 | |
6523 | IgorA | 116 | gl_matrix_update eax,ebx |
5153 | IgorA | 117 | ret |
118 | endp |
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119 | |||
120 | |||
121 | proc glopMultMatrix uses eax edi esi, context:dword, p:dword |
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122 | locals |
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123 | m M4 |
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124 | endl |
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125 | mov esi,[p] |
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126 | add esi,4 |
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127 | lea edi,[ebp-sizeof.M4] |
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8062 | IgorA | 128 | stdcall gl_M4_Transpose,edi,esi ;транспонируем входную матрицу в локальную матрицу m |
5153 | IgorA | 129 | |
130 | |||
131 | mov esi,[eax+GLContext.matrix_mode] |
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6523 | IgorA | 132 | lea esi,[eax+4*esi] |
8062 | IgorA | 133 | stdcall gl_M4_MulLeft,dword[esi+GLContext.matrix_stack_ptr],edi |
6523 | IgorA | 134 | |
5153 | IgorA | 135 | |
136 | ret |
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137 | endp |
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138 | |||
139 | |||
140 | proc glopPushMatrix uses eax ebx, context:dword, p:dword |
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141 | mov eax,[context] |
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142 | mov ebx,[eax+GLContext.matrix_mode] |
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6523 | IgorA | 143 | |
5153 | IgorA | 144 | |
145 | ; < c->matrix_stack_depth_max[ebx] ); |
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146 | |||
147 | |||
8062 | IgorA | 148 | add dword[ebx],sizeof.M4 |
5153 | IgorA | 149 | mov ebx,[ebx] ;ebx = ++context.matrix_stack_ptr[context.matrix_mode] |
150 | |||
151 | |||
152 | push ebx |
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153 | add ebx,sizeof.M4 |
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154 | stdcall gl_M4_Move, ebx |
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155 | |||
156 | |||
157 | ret |
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158 | endp |
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159 | |||
160 | |||
161 | proc glopPopMatrix uses eax ebx, context:dword, p:dword |
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162 | mov eax,[context] |
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163 | mov ebx,[eax+GLContext.matrix_mode] |
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6523 | IgorA | 164 | |
5153 | IgorA | 165 | |
166 | |||
167 | |||
8062 | IgorA | 168 | sub dword[ebx+GLContext.matrix_stack_ptr],sizeof.M4 |
6523 | IgorA | 169 | |
5153 | IgorA | 170 | |
171 | ret |
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172 | endp |
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173 | |||
174 | |||
175 | proc glopRotate uses eax ebx ecx edx, context:dword, p:dword |
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5415 | IgorA | 176 | locals |
5153 | IgorA | 177 | u0 dd ? |
178 | u1 dd ? |
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179 | u2 dd ? |
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180 | angle dd ? |
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181 | cost dd ? |
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182 | sint dd ? |
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183 | m M4 |
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184 | endl |
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185 | |||
186 | |||
187 | mov ebx,[p] |
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188 | lea ecx,[ebp-sizeof.M4] ;ecx=&m |
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8062 | IgorA | 189 | finit |
5153 | IgorA | 190 | fldpi |
191 | fmul dword[ebx+4] |
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192 | fdiv dword[an180f] |
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193 | fst dword[angle] ;angle = p[1].f * M_PI / 180.0 |
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194 | ;st0 = angle |
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195 | |||
196 | |||
197 | xor edx,edx |
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5415 | IgorA | 198 | fld dword[ebx+16] |
199 | ftst |
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200 | fstsw ax |
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5153 | IgorA | 201 | sahf |
202 | je @f |
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203 | inc edx |
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5415 | IgorA | 204 | @@: |
5153 | IgorA | 205 | fstp dword[u2] |
5415 | IgorA | 206 | fld dword[ebx+12] |
207 | ftst |
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208 | fstsw ax |
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5153 | IgorA | 209 | sahf |
210 | je @f |
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211 | or edx,2 |
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5415 | IgorA | 212 | @@: |
5153 | IgorA | 213 | fstp dword[u1] |
5415 | IgorA | 214 | fld dword[ebx+8] |
215 | ftst |
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216 | fstsw ax |
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5153 | IgorA | 217 | sahf |
218 | je @f |
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219 | or edx,4 |
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5415 | IgorA | 220 | @@: |
5153 | IgorA | 221 | fstp dword[u0] |
5415 | IgorA | 222 | |
5153 | IgorA | 223 | |
5415 | IgorA | 224 | ;ebx = ((u0 != 0)<<2) | ((u1 != 0)<<1) | (u2 != 0) |
5153 | IgorA | 225 | or edx,edx |
5415 | IgorA | 226 | jz .end_f ;если нет поворотов выход из функции |
227 | cmp edx,4 |
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228 | jne @f |
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5153 | IgorA | 229 | fld dword[u0] |
5415 | IgorA | 230 | ftst |
231 | fstsw ax |
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5153 | IgorA | 232 | ffree st0 |
5415 | IgorA | 233 | fincstp |
234 | sahf |
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5153 | IgorA | 235 | jae .u0ch |
236 | fchs ;if (u0 < 0) angle *= -1 |
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5415 | IgorA | 237 | .u0ch: |
5153 | IgorA | 238 | push dword 0 |
5415 | IgorA | 239 | fstp dword[esp-4] |
240 | sub esp,4 |
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241 | stdcall gl_M4_Rotate, ecx |
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242 | jmp .end_sw |
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5153 | IgorA | 243 | @@: |
244 | cmp edx,2 |
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5415 | IgorA | 245 | jne @f |
5153 | IgorA | 246 | fld dword[u1] |
5415 | IgorA | 247 | ftst |
248 | fstsw ax |
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5153 | IgorA | 249 | ffree st0 |
5415 | IgorA | 250 | fincstp |
251 | sahf |
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5153 | IgorA | 252 | jae .u1ch |
253 | fchs ;if (u1 < 0) angle *= -1 |
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5415 | IgorA | 254 | .u1ch: |
5153 | IgorA | 255 | push dword 1 |
5415 | IgorA | 256 | fstp dword[esp-4] |
257 | sub esp,4 |
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258 | stdcall gl_M4_Rotate, ecx |
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259 | jmp .end_sw |
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5153 | IgorA | 260 | @@: |
261 | cmp edx,1 |
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5415 | IgorA | 262 | jne @f |
5153 | IgorA | 263 | fld dword[u2] |
5415 | IgorA | 264 | ftst |
265 | fstsw ax |
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5153 | IgorA | 266 | ffree st0 |
5415 | IgorA | 267 | fincstp |
268 | sahf |
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5153 | IgorA | 269 | jae .u2ch |
270 | fchs ;if (u2 < 0) angle *= -1 |
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5415 | IgorA | 271 | .u2ch: |
5153 | IgorA | 272 | push dword 2 |
5415 | IgorA | 273 | fstp dword[esp-4] |
274 | sub esp,4 |
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275 | stdcall gl_M4_Rotate, ecx |
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276 | jmp .end_sw |
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5153 | IgorA | 277 | @@: ;default: |
278 | |||
279 | |||
280 | fld dword[u0] |
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281 | fmul st0,st0 |
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282 | fld dword[u1] |
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283 | fmul st0,st0 |
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284 | faddp |
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5415 | IgorA | 285 | fld dword[u2] |
5153 | IgorA | 286 | fmul st0,st0 |
287 | faddp |
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5415 | IgorA | 288 | ; fst dword[len] ;len = u0*u0+u1*u1+u2*u2 |
5153 | IgorA | 289 | ftst |
5415 | IgorA | 290 | fstsw ax |
5153 | IgorA | 291 | sahf |
292 | je .f2 ;if (len == 0.0f) return |
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5415 | IgorA | 293 | fsqrt |
5153 | IgorA | 294 | fld1 |
295 | fxch |
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5415 | IgorA | 296 | fdivp ;len = 1.0f / sqrt(len) |
297 | ; fst dword[len] |
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298 | fld dword[u0] |
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5153 | IgorA | 299 | fmul st0,st1 |
300 | fstp dword[u0] ;u0 *= len |
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301 | fld dword[u1] |
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302 | fmul st0,st1 |
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303 | fstp dword[u1] ;u1 *= len |
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304 | fld dword[u2] |
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305 | fmul st0,st1 |
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306 | fstp dword[u2] ;u2 *= len |
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307 | ;st0 = len, st1 = angle |
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5415 | IgorA | 308 | ffree st0 |
309 | fincstp |
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310 | |||
5153 | IgorA | 311 | |
312 | fcos |
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313 | fst dword[cost] ;cost=cos(angle) |
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314 | fld dword[angle] |
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315 | fsin |
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316 | fst dword[sint] ;sint=sin(angle) |
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317 | |||
318 | |||
319 | mov ebx,0.0 |
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320 | mov [ecx+3*16 ],ebx ;m[3][0] |
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321 | mov [ecx+3*16 +4],ebx ;m[3][1] |
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322 | mov [ecx+3*16 +8],ebx ;m[3][2] |
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323 | mov [ecx+ 12],ebx ;m[0][3] |
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324 | mov [ecx+ 16+12],ebx ;m[1][3] |
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325 | mov [ecx+2*16+12],ebx ;m[2][3] |
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326 | mov ebx,1.0 |
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327 | mov [ecx+3*16+12],ebx ;m[3][3] |
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328 | |||
329 | |||
330 | fld dword[u0] |
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5415 | IgorA | 331 | fmul st0,st0 |
332 | fld1 |
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333 | fsub st0,st1 |
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334 | fmul st0,st3 ;st0 = cost*(1-u0^2) |
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335 | faddp |
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336 | fstp dword[ecx] ;m[0][0] = u0*u0+cost*(1-u0*u0) |
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337 | |||
338 | |||
339 | fsub st0,st2 ;st0 = 1-cost |
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340 | |||
341 | |||
342 | fmul dword[u0] |
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343 | fmul dword[u1] |
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344 | fld dword[u2] |
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345 | fmul st0,st3 ;st0 = u2*sint |
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346 | fchs |
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347 | faddp |
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348 | fstp dword[ecx+16] ;m[1][0] = u0*u1*(1-cost)-u2*sint |
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349 | |||
350 | |||
351 | fmul dword[u0] |
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352 | fmul dword[u2] |
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353 | fld dword[u1] |
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354 | fmul st0,st3 ;st0 = u1*sint |
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355 | faddp |
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356 | fstp dword[ecx+32] ;m.m[2][0]=u[2]*u[0]*(1-cost)+u[1]*sint |
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357 | |||
358 | |||
359 | fmul dword[u0] |
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360 | fmul dword[u1] |
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361 | fld dword[u2] |
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362 | fmul st0,st3 ;st0 = u2*sint |
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363 | faddp |
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364 | fstp dword[ecx+4] ;m.m[0][1]=u[0]*u[1]*(1-cost)+u[2]*sint |
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365 | |||
366 | |||
367 | fmul st0,st0 |
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368 | fld1 |
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369 | fsub st0,st1 |
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370 | fmul st0,st4 ;st0 = cost*(1-u1^2) |
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371 | faddp |
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372 | fstp dword[ecx+20] ;m.m[1][1]=u[1]*u[1]+cost*(1-u[1]*u[1]) |
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373 | |||
374 | |||
375 | fmul dword[u1] |
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376 | fmul dword[u2] |
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377 | fld dword[u0] |
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378 | fmul st0,st3 ;st0 = u0*sint |
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379 | fchs |
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380 | faddp |
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381 | fstp dword[ecx+36] ;m.m[2][1]=u[1]*u[2]*(1-cost)-u[0]*sint |
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382 | |||
383 | |||
384 | fmul dword[u0] |
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385 | fmul dword[u2] |
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386 | fld dword[u1] |
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387 | fmul st0,st3 ;st0 = u1*sint |
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388 | fchs |
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389 | faddp |
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390 | fstp dword[ecx+8] ;m.m[0][2]=u[2]*u[0]*(1-cost)-u[1]*sint |
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391 | |||
392 | |||
393 | fmul dword[u1] |
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394 | fmul dword[u2] |
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395 | fld dword[u0] |
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396 | fmul st0,st3 ;st0 = u0*sint |
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397 | faddp |
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398 | fstp dword[ecx+24] ;m.m[1][2]=u[1]*u[2]*(1-cost)+u[0]*sint |
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399 | |||
400 | |||
401 | fincstp |
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402 | |||
403 | |||
404 | fmul st0,st0 |
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405 | fld1 |
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406 | fsub st0,st1 |
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407 | fmul st0,st3 ;st0 = cost*(1-u2^2) |
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408 | faddp |
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409 | fstp dword[ecx+40] ;m[2][2] = u2*u2+cost*(1-u2*u2) |
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410 | |||
411 | |||
412 | fincstp |
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413 | ffree st0 ;cost |
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414 | fincstp |
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415 | .end_sw: |
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5153 | IgorA | 416 | |
417 | |||
418 | mov ebx,[eax+GLContext.matrix_mode] |
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6523 | IgorA | 419 | lea ebx,[eax+4*ebx] |
8062 | IgorA | 420 | stdcall gl_M4_MulLeft,dword[ebx+GLContext.matrix_stack_ptr],ecx |
6523 | IgorA | 421 | gl_matrix_update eax,ebx |
5153 | IgorA | 422 | jmp .end_f |
5415 | IgorA | 423 | .f2: |
424 | ffree st0 ;len |
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425 | fincstp |
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426 | ffree st0 ;angle |
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427 | fincstp |
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428 | .end_f: |
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5153 | IgorA | 429 | ret |
430 | endp |
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431 | |||
432 | |||
433 | proc glopScale uses eax ebx ecx, context:dword, p:dword |
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434 | mov ecx,[p] |
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435 | |||
436 | |||
437 | mov ebx,[eax+GLContext.matrix_mode] |
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6523 | IgorA | 438 | lea ebx,[eax+4*ebx] |
8062 | IgorA | 439 | mov ebx,[ebx+GLContext.matrix_stack_ptr] ;ebx = &m[0] |
6523 | IgorA | 440 | |
5153 | IgorA | 441 | |
442 | fld dword[ecx+ 8] ;y |
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443 | fld dword[ecx+12] ;z |
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444 | mov ecx,4 |
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445 | @@: |
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446 | fld dword[ebx] ;m[0] |
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447 | fmul st0,st3 ;m[0] * x |
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448 | fstp dword[ebx] ;m[0] *= x |
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449 | fld dword[ebx+4] ;m[1] |
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450 | fmul st0,st2 ;m[1] * y |
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451 | fstp dword[ebx+4];m[1] *= y |
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452 | fld dword[ebx+8] ;m[2] |
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453 | fmul st0,st1 ;m[2] * z |
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454 | fstp dword[ebx+8];m[2] *= z |
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455 | add ebx,16 |
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456 | loop @b |
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457 | ffree st0 |
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5415 | IgorA | 458 | fincstp |
459 | ffree st0 |
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460 | fincstp |
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461 | ffree st0 |
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462 | fincstp |
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463 | |||
5153 | IgorA | 464 | |
465 | ret |
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466 | endp |
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467 | |||
468 | |||
469 | proc glopTranslate uses eax ebx ecx, context:dword, p:dword |
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470 | mov ecx,[p] |
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471 | |||
472 | |||
473 | mov ebx,[eax+GLContext.matrix_mode] |
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6523 | IgorA | 474 | lea ebx,[eax+4*ebx] |
8062 | IgorA | 475 | mov ebx,[ebx+GLContext.matrix_stack_ptr] ;ebx = &m[0] |
6523 | IgorA | 476 | |
5153 | IgorA | 477 | |
478 | fld dword[ecx+ 8] ;y |
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479 | fld dword[ecx+12] ;z |
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480 | mov ecx,4 |
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481 | @@: |
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482 | fld dword[ebx] ;m[0] |
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483 | fmul st0,st3 ;m[0] * x |
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484 | fld dword[ebx+4] ;m[1] |
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485 | fmul st0,st3 ;m[1] * y |
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486 | faddp |
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5269 | IgorA | 487 | fld dword[ebx+8] ;m[2] |
5153 | IgorA | 488 | fmul st0,st2 ;m[2] * z |
5269 | IgorA | 489 | faddp |
5175 | IgorA | 490 | fadd dword[ebx+12] ;m[3] |
5153 | IgorA | 491 | fstp dword[ebx+12] ;m[3] = m[0] * x + m[1] * y + m[2] * z + m[3] |
492 | add ebx,16 |
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493 | loop @b |
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494 | ffree st0 |
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5175 | IgorA | 495 | fincstp |
496 | ffree st0 |
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497 | fincstp |
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498 | ffree st0 |
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499 | fincstp |
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500 | |||
5153 | IgorA | 501 | |
502 | ret |
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503 | endp |
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504 | |||
505 | |||
506 | proc glopFrustum uses eax ebx ecx, context:dword, p:dword |
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507 | locals |
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508 | x dd ? |
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509 | y dd ? |
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510 | A dd ? |
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511 | B dd ? |
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512 | C dd ? |
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513 | D dd ? |
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514 | m M4 |
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515 | endl |
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516 | mov eax,[context] |
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517 | mov ebx,[p] |
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518 | |||
519 | |||
520 | fsub dword[ebx+4] ;st0 = (right-left) |
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521 | fld dword[ebx+20] ;st0 = near |
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522 | fadd st0,st0 |
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523 | fdiv st0,st1 |
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524 | fstp dword[x] ;x = (2.0*near) / (right-left) |
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525 | fld dword[ebx+16] |
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526 | fsub dword[ebx+12] ;st0 = (top-bottom) |
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527 | fld dword[ebx+20] ;st0 = near |
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528 | fadd st0,st0 |
||
529 | fdiv st0,st1 |
||
530 | fstp dword[y] ;y = (2.0*near) / (top-bottom) |
||
531 | fld dword[ebx+8] |
||
532 | fadd dword[ebx+4] ;st0 = (right+left) |
||
533 | fdiv st0,st2 ;st2 = (right-left) |
||
534 | fstp dword[A] ;A = (right+left) / (right-left) |
||
535 | fld dword[ebx+16] |
||
536 | fadd dword[ebx+12] ;st0 = (top+bottom) |
||
537 | fdiv st0,st1 ;st1 = (top-bottom) |
||
538 | fstp dword[B] ;B = (top+bottom) / (top-bottom) |
||
539 | fld dword[ebx+24] |
||
540 | fsub dword[ebx+20] ;st0 = (farp-near) |
||
541 | fld dword[ebx+24] |
||
5418 | IgorA | 542 | fadd dword[ebx+20] |
543 | fchs ;st0 = -(farp+near) |
||
544 | fdiv st0,st1 |
||
5153 | IgorA | 545 | fstp dword[C] ;C = -(farp+near) / (farp-near) |
546 | fld dword[ebx+24] |
||
547 | fmul dword[ebx+20] ;st0 = farp*near |
||
548 | fadd st0,st0 |
||
549 | fchs ;st0 = -(2.0*farp*near) |
||
550 | fdiv st0,st1 |
||
551 | fstp dword[D] ;D = -(2.0*farp*near) / (farp-near) |
||
552 | ffree st0 |
||
5418 | IgorA | 553 | fincstp |
554 | ffree st0 |
||
555 | fincstp |
||
556 | ffree st0 |
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557 | fincstp |
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558 | |||
5153 | IgorA | 559 | |
560 | sub ecx,sizeof.M4 |
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561 | |||
562 | |||
563 | mov dword[ecx],ebx |
||
564 | mov dword[ecx+4],0.0 |
||
565 | mov ebx,[A] |
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566 | mov dword[ecx+8],ebx |
||
567 | mov dword[ecx+12],0.0 |
||
568 | mov dword[ecx+16],0.0 |
||
569 | mov ebx,[y] |
||
570 | mov dword[ecx+20],ebx |
||
571 | mov ebx,[B] |
||
572 | mov dword[ecx+24],ebx |
||
573 | mov dword[ecx+28],0.0 |
||
574 | mov dword[ecx+32],0.0 |
||
575 | mov dword[ecx+36],0.0 |
||
576 | mov ebx,[C] |
||
577 | mov dword[ecx+40],ebx |
||
578 | mov ebx,[D] |
||
579 | mov dword[ecx+44],ebx |
||
580 | mov dword[ecx+48],0.0 |
||
581 | mov dword[ecx+52],0.0 |
||
582 | mov dword[ecx+56],-1.0 |
||
583 | mov dword[ecx+60],0.0 |
||
584 | |||
585 | |||
6523 | IgorA | 586 | shl ebx,2 |
5153 | IgorA | 587 | add ebx,eax |
588 | stdcall gl_M4_MulLeft,dword[ebx+GLContext.matrix_stack_ptr],ecx |
||
6523 | IgorA | 589 | |
5153 | IgorA | 590 | |
591 | stdcall gl_print_matrix,ecx,4 |
||
592 | stdcall gl_print_matrix,dword[ebx+GLContext.matrix_stack_ptr],4 |
||
6523 | IgorA | 593 | end if |
5153 | IgorA | 594 | gl_matrix_update eax,ebx |
595 | ret |
||
596 | endp |
||
597 | |||
598 | |||
8062 | IgorA | 599 | proc glopOrtho uses eax ebx ecx, context:dword, p:dword |
600 | locals |
||
601 | x dd ? |
||
602 | y dd ? |
||
603 | A dd ? |
||
604 | B dd ? |
||
605 | C dd ? |
||
606 | D dd ? |
||
607 | m M4 |
||
608 | endl |
||
609 | mov eax,[context] |
||
610 | mov ebx,[p] |
||
611 | |||
612 | |||
613 | fsub dword[ebx+4] ;st0 = (right-left) |
||
614 | fld1 |
||
615 | fadd st0,st0 ;st0 = 2.0 |
||
616 | fdiv st0,st1 |
||
617 | fstp dword[x] ;x = 2.0 / (right-left) |
||
618 | fld dword[ebx+16] |
||
619 | fsub dword[ebx+12] ;st0 = (top-bottom) |
||
620 | fld1 |
||
621 | fadd st0,st0 ;st0 = 2.0 |
||
622 | fdiv st0,st1 |
||
623 | fstp dword[y] ;y = 2.0 / (top-bottom) |
||
624 | fld dword[ebx+8] |
||
625 | fadd dword[ebx+4] |
||
626 | fchs ;st0 = -(right+left) |
||
627 | fdiv st0,st2 ;st2 = (right-left) |
||
628 | fstp dword[A] ;A = -(right+left) / (right-left) |
||
629 | fld dword[ebx+16] |
||
630 | fadd dword[ebx+12] |
||
631 | fchs ;st0 = -(top+bottom) |
||
632 | fdiv st0,st1 ;st1 = (top-bottom) |
||
633 | fstp dword[B] ;B = -(top+bottom) / (top-bottom) |
||
634 | fld dword[ebx+24] |
||
635 | fsub dword[ebx+20] ;st0 = (farp-near) |
||
636 | fld1 |
||
637 | fadd st0,st0 |
||
638 | fchs ;st0 = -2.0 |
||
639 | fdiv st0,st1 |
||
640 | fstp dword[C] ;C = -2.0 / (farp-near) |
||
641 | fld dword[ebx+24] |
||
642 | fadd dword[ebx+20] ;st0 = farp+near |
||
643 | fchs ;st0 = -(farp+near) |
||
644 | fdiv st0,st1 |
||
645 | fstp dword[D] ;D = -(farp*near) / (farp-near) |
||
646 | ffree st0 |
||
647 | fincstp |
||
648 | ffree st0 |
||
649 | fincstp |
||
650 | ffree st0 |
||
651 | fincstp |
||
652 | |||
653 | |||
654 | |||
655 | |||
656 | mov dword[ecx],ebx |
||
657 | mov dword[ecx+4],0.0 |
||
658 | mov dword[ecx+8],0.0 |
||
659 | mov ebx,[A] |
||
660 | mov dword[ecx+12],ebx |
||
661 | mov dword[ecx+16],0.0 |
||
662 | mov ebx,[y] |
||
663 | mov dword[ecx+20],ebx |
||
664 | mov dword[ecx+24],0.0 |
||
665 | mov ebx,[B] |
||
666 | mov dword[ecx+28],ebx |
||
667 | mov dword[ecx+32],0.0 |
||
668 | mov dword[ecx+36],0.0 |
||
669 | mov ebx,[C] |
||
670 | mov dword[ecx+40],ebx |
||
671 | mov ebx,[D] |
||
672 | mov dword[ecx+44],ebx |
||
673 | mov dword[ecx+48],0.0 |
||
674 | mov dword[ecx+52],0.0 |
||
675 | mov dword[ecx+56],0.0 |
||
676 | mov dword[ecx+60],1.0 |
||
677 | |||
678 | |||
679 | lea ebx,[eax+4*ebx] |
||
680 | stdcall gl_M4_MulLeft,dword[ebx+GLContext.matrix_stack_ptr],ecx |
||
681 | |||
682 | |||
683 | stdcall gl_print_matrix,ecx,4 |
||
684 | stdcall gl_print_matrix,dword[ebx+GLContext.matrix_stack_ptr],4 |
||
685 | end if |
||
686 | gl_matrix_update eax,ebx |
||
687 | ret |
||
688 | endp>>>1)><1)>2)><2)>> |
||
689 |