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Rev | Author | Line No. | Line |
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5269 | IgorA | 1 | align 4 |
2 | sp128f dd 128.0 |
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5153 | IgorA | 3 | |
4 | align 4 |
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5256 | IgorA | 5 | proc glopMaterial uses eax ebx ecx edi esi, context:dword, p:dword |
6 | ; edi -> GLMaterial *m |
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7 | mov eax,[context] |
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8 | mov ebx,[p] |
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9 | mov ecx,[ebx+4] ;ecx = p[1] |
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5153 | IgorA | 10 | |
5256 | IgorA | 11 | cmp ecx,GL_FRONT_AND_BACK ;if (mode == GL_FRONT_AND_BACK) |
12 | jne @f |
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13 | mov dword[ebx+4],GL_FRONT ;p[1].i=GL_FRONT |
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14 | mov edi,ebp |
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15 | add edi,12 |
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16 | stdcall glopMaterial,eax,edi |
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17 | mov ecx,GL_BACK |
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18 | @@: |
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5269 | IgorA | 19 | mov edi,eax |
20 | add edi,offs_cont_materials |
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5256 | IgorA | 21 | cmp ecx,GL_FRONT ;if (mode == GL_FRONT) m=&context.materials[0] |
22 | je @f |
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23 | add edi,sizeof.GLMaterial ;else m=&context.materials[1] |
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24 | @@: |
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5153 | IgorA | 25 | |
5256 | IgorA | 26 | mov ecx,4 |
27 | mov esi,ebx ;esi = &p |
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28 | add esi,12 ;esi = &p[3] |
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29 | mov ebx,[ebx+8] ;ebx = p[2] |
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30 | cmp ebx,GL_EMISSION |
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31 | jne @f |
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32 | ;add edi,offs_mate_emission ;offs_mate_emission=0 |
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33 | rep movsd |
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34 | jmp .end_f |
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35 | @@: |
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36 | cmp ebx,GL_AMBIENT |
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37 | jne @f |
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38 | add edi,offs_mate_ambient |
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39 | rep movsd |
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40 | jmp .end_f |
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41 | @@: |
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42 | cmp ebx,GL_DIFFUSE |
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43 | jne @f |
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44 | add edi,offs_mate_diffuse |
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45 | rep movsd |
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46 | jmp .end_f |
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47 | @@: |
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48 | cmp ebx,GL_SPECULAR |
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49 | jne @f |
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50 | add edi,offs_mate_specular |
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51 | rep movsd |
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52 | jmp .end_f |
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53 | @@: |
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54 | cmp ebx,GL_SHININESS |
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55 | jne @f |
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56 | fld dword[esi] |
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57 | add edi,offs_mate_shininess |
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58 | movsd |
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59 | mov dword[edi],SPECULAR_BUFFER_RESOLUTION |
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5269 | IgorA | 60 | fdiv dword[sp128f] |
5256 | IgorA | 61 | fimul dword[edi] |
62 | fistp dword[edi] ;m.shininess_i = (v[0]/128.0f)*SPECULAR_BUFFER_RESOLUTION |
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63 | jmp .end_f |
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64 | @@: |
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65 | cmp ebx,GL_AMBIENT_AND_DIFFUSE |
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66 | jne @f |
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67 | add edi,offs_mate_ambient |
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68 | rep movsd |
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69 | sub esi,16 |
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70 | ;edi = &offs_mate_diffuse |
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71 | mov ecx,4 |
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72 | rep movsd |
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73 | jmp .end_f |
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74 | @@: ;default |
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5153 | IgorA | 75 | ; assert(0); |
5256 | IgorA | 76 | .end_f: |
5153 | IgorA | 77 | ret |
78 | endp |
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79 | |||
80 | align 4 |
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81 | proc glopColorMaterial uses eax ebx ecx, context:dword, p:dword |
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82 | mov eax,[context] |
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83 | mov ebx,[p] |
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84 | mov ecx,[ebx+4] ;ecx = p[1] |
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85 | mov dword[eax+offs_cont_current_color_material_mode],ecx |
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86 | mov ecx,[ebx+8] ;ecx = p[2] |
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87 | mov dword[eax+offs_cont_current_color_material_type],ecx |
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88 | ret |
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89 | endp |
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90 | |||
5218 | IgorA | 91 | align 4 |
5256 | IgorA | 92 | proc glopLight context:dword, p:dword |
93 | locals |
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94 | pos V4 |
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95 | endl |
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96 | pushad |
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5218 | IgorA | 97 | mov eax,[context] |
98 | mov ebx,[p] |
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99 | mov edx,[ebx+4] ;edx = p[1] |
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100 | |||
101 | ; assert(edx >= GL_LIGHT0 && edx < GL_LIGHT0+MAX_LIGHTS ); |
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102 | |||
103 | sub edx,GL_LIGHT0 |
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104 | imul edx,sizeof.GLLight |
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105 | add edx,eax |
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106 | add edx,offs_cont_lights |
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107 | |||
108 | mov ecx,[ebx+8] ;ecx = p[2] |
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109 | cmp ecx,GL_AMBIENT |
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110 | jne @f |
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111 | mov esi,ebx |
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112 | add esi,12 |
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113 | mov edi,edx |
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114 | ;add edi,offs_ligh_ambient ;offs_ligh_ambient = 0 |
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115 | mov ecx,4 |
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116 | rep movsd ;l.ambient=v |
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117 | jmp .end_f |
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118 | @@: |
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119 | cmp ecx,GL_DIFFUSE |
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120 | jne @f |
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121 | mov esi,ebx |
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122 | add esi,12 |
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123 | mov edi,edx |
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124 | add edi,offs_ligh_diffuse |
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125 | mov ecx,4 |
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126 | rep movsd ;l.diffuse=v |
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127 | jmp .end_f |
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128 | @@: |
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129 | cmp ecx,GL_SPECULAR |
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130 | jne @f |
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131 | mov esi,ebx |
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132 | add esi,12 |
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133 | mov edi,edx |
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134 | add edi,offs_ligh_specular |
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135 | mov ecx,4 |
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136 | rep movsd ;l.specular=v |
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137 | jmp .end_f |
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138 | @@: |
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139 | cmp ecx,GL_POSITION |
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140 | jne @f |
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5256 | IgorA | 141 | mov edi,ebx ;ebx = [ebp+12] = [p] = &p[0] |
142 | add edi,12 ;&p[3] |
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143 | mov esi,ebp |
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144 | sub esi,16 ;&pos |
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145 | stdcall gl_M4_MulV4, esi,dword[eax+offs_cont_matrix_stack_ptr],edi |
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146 | mov edi,edx |
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147 | add edi,offs_ligh_position |
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148 | mov ecx,4 |
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149 | rep movsd ;l.position=pos |
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150 | |||
151 | fld dword[edi-4] ;if(l.position.v[3] == 0) |
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152 | ftst |
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153 | fstsw ax |
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154 | sahf |
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155 | jne .end_i |
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156 | ;mov esi,ebp |
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157 | sub esi,16 ;&pos |
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158 | mov edi,edx |
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159 | add edi,offs_ligh_norm_position |
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160 | mov ecx,3 |
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161 | rep movsd ;l.norm_position=pos[1,2,3] |
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162 | |||
163 | ;mov edi,edx |
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164 | ;add edi,offs_ligh_norm_position |
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165 | sub edi,12 |
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166 | stdcall gl_V3_Norm,edi ;&l.norm_position |
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167 | .end_i: |
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168 | ffree st0 |
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169 | fincstp |
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5218 | IgorA | 170 | jmp .end_f |
171 | @@: |
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172 | cmp ecx,GL_SPOT_DIRECTION |
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173 | jne @f |
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5256 | IgorA | 174 | mov esi,ebx ;&p[0] |
5218 | IgorA | 175 | add esi,12 |
176 | mov edi,edx |
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177 | add edi,offs_ligh_spot_direction |
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178 | mov ecx,3 |
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179 | rep movsd ;l.spot_direction=v[0,1,2] |
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5269 | IgorA | 180 | ;mov esi,ebx |
181 | ;add esi,12 |
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182 | sub esi,12 |
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183 | ;mov edi,edx |
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184 | ;add edi,offs_ligh_norm_spot_direction |
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185 | add edi,offs_ligh_norm_spot_direction-(offs_ligh_spot_direction+12) |
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5218 | IgorA | 186 | mov ecx,3 |
187 | rep movsd ;l.norm_spot_direction=v[0,1,2] |
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188 | add edx,offs_ligh_norm_spot_direction |
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189 | stdcall gl_V3_Norm,edx |
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190 | jmp .end_f |
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191 | @@: |
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192 | cmp ecx,GL_SPOT_EXPONENT |
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193 | jne @f |
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194 | mov ecx,[ebx+12] |
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195 | mov [edi+offs_ligh_spot_exponent],ecx ;l.spot_exponent=p[3] |
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196 | jmp .end_f |
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197 | @@: |
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198 | cmp ecx,GL_SPOT_CUTOFF |
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5256 | IgorA | 199 | jne .end_spot_c |
200 | fld dword[ebp+12] ;float a=v.v[0] |
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5153 | IgorA | 201 | ; assert(a == 180 || (a>=0 && a<=90)); |
5256 | IgorA | 202 | fst dword[edi+offs_ligh_spot_cutoff] ;l.spot_cutoff=a |
203 | fcom dword[an180f] ;if (a != 180) |
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204 | fstsw ax |
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205 | sahf |
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5278 | IgorA | 206 | je @f |
5256 | IgorA | 207 | fldpi |
208 | fmulp |
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209 | fdiv dword[an180f] |
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210 | fcos |
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211 | fstp dword[edi+offs_ligh_spot_cutoff] ;l.cos_spot_cutoff=cos(a * M_PI / 180.0) |
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212 | jmp .end_f |
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213 | @@: |
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214 | ffree st0 |
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215 | fincstp |
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5218 | IgorA | 216 | jmp .end_f |
5256 | IgorA | 217 | .end_spot_c: |
5218 | IgorA | 218 | cmp ecx,GL_CONSTANT_ATTENUATION |
219 | mov ecx,[ebx+12] |
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220 | mov [edi+offs_ligh_attenuation],ecx ;l->attenuation[0]=p[3] |
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221 | jmp .end_f |
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222 | @@: |
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223 | cmp ecx,GL_LINEAR_ATTENUATION |
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224 | mov ecx,[ebx+12] |
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225 | mov [edi+offs_ligh_attenuation+4],ecx ;l->attenuation[1]=p[3] |
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226 | jmp .end_f |
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227 | @@: |
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228 | cmp ecx,GL_QUADRATIC_ATTENUATION |
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229 | mov ecx,[ebx+12] |
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230 | mov [edi+offs_ligh_attenuation+8],ecx ;l->attenuation[2]=p[3] |
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231 | jmp .end_f |
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232 | @@: ;default: |
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5153 | IgorA | 233 | ; assert(0); |
5218 | IgorA | 234 | .end_f: |
5256 | IgorA | 235 | popad |
5218 | IgorA | 236 | ret |
237 | endp |
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238 | |||
5153 | IgorA | 239 | |
240 | align 4 |
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241 | proc glopLightModel uses ebx ecx esi edi, context:dword, p:dword |
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242 | mov edi,[context] |
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243 | mov ebx,[p] |
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5256 | IgorA | 244 | mov ebx,[ebx+4] |
245 | mov esi,[ebp+12] ;&p[0] |
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246 | add esi,8 ;&p[2] |
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5153 | IgorA | 247 | |
5256 | IgorA | 248 | cmp ebx,GL_LIGHT_MODEL_AMBIENT |
5153 | IgorA | 249 | jne @f |
250 | mov ecx,4 |
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5256 | IgorA | 251 | add edi,offs_cont_ambient_light_model |
5153 | IgorA | 252 | rep movsd ;for(i=0;i<4;i++) context.ambient_light_model.v[i]=v[i] |
253 | jmp .end_f |
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254 | @@: |
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5256 | IgorA | 255 | cmp ebx,GL_LIGHT_MODEL_LOCAL_VIEWER |
5153 | IgorA | 256 | jne @f |
5256 | IgorA | 257 | fld dword[esi] ;st0 = p[2] |
5153 | IgorA | 258 | fistp dword[edi+offs_cont_local_light_model] |
259 | jmp .end_f |
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260 | @@: |
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5256 | IgorA | 261 | cmp ebx,GL_LIGHT_MODEL_TWO_SIDE |
5153 | IgorA | 262 | jne @f |
5256 | IgorA | 263 | fld dword[esi] ;st0 = p[2] |
5153 | IgorA | 264 | fistp dword[edi+offs_cont_light_model_two_side] |
265 | jmp .end_f |
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266 | @@: ;default: |
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5256 | IgorA | 267 | ; tgl_warning("glopLightModel: illegal pname: 0x%x\n", ebx); |
5153 | IgorA | 268 | ; //assert(0); |
269 | .end_f: |
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270 | ret |
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271 | endp |
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272 | |||
5256 | IgorA | 273 | macro clampf a, min, max |
274 | { |
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275 | local .o_1 |
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276 | local .o_2 |
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277 | local .end_m |
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278 | fld dword a ;if (a<=0.0) |
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279 | ftst |
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280 | fstsw ax |
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281 | sahf |
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282 | ja .o_1 |
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283 | ffree st0 |
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284 | fincstp |
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285 | mov eax,0.0 |
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286 | jmp .end_m ;return 0.0 |
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287 | .o_1: |
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288 | fld1 ;else if (a>=1.0) |
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289 | fcompp |
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290 | fstsw ax |
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291 | sahf |
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5278 | IgorA | 292 | ja .o_2 |
5256 | IgorA | 293 | mov eax,1.0 |
294 | jmp .end_m ;return 1.0 |
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295 | .o_2: |
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296 | mov eax,dword a ;else return a |
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297 | .end_m: |
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298 | } |
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5153 | IgorA | 299 | |
300 | align 4 |
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301 | proc gl_enable_disable_light uses eax ebx ecx, context:dword, light:dword, v:dword |
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302 | mov eax,[context] |
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303 | mov ebx,[light] |
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304 | imul ebx,sizeof.GLLight |
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5256 | IgorA | 305 | add ebx,eax |
306 | add ebx,offs_cont_lights |
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5153 | IgorA | 307 | |
308 | xor ecx,ecx |
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309 | cmp dword[ebx+offs_ligh_enabled],0 |
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310 | jne @f |
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311 | not ecx |
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312 | @@: |
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313 | and ecx,[v] |
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5256 | IgorA | 314 | or ecx,ecx |
315 | jz @f |
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5153 | IgorA | 316 | ;if (v && !l.enabled) |
317 | mov dword[ebx+offs_ligh_enabled],1 |
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318 | mov ecx,[eax+offs_cont_first_light] |
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319 | mov [ebx+offs_ligh_next],ecx |
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320 | mov [eax+offs_cont_first_light],ebx ;context.first_light = l |
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321 | mov dword[ebx+offs_ligh_prev],0 ;l.prev = NULL |
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322 | jmp .end_f |
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323 | @@: |
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324 | xor ecx,ecx |
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325 | cmp dword[v],0 |
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326 | jne @f |
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327 | not ecx |
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328 | @@: |
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329 | and ecx,[ebx+offs_ligh_enabled] |
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5256 | IgorA | 330 | or ecx,ecx |
331 | jz .end_f |
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5153 | IgorA | 332 | ;else if (!v && l.enabled) |
333 | mov dword[ebx+offs_ligh_enabled],0 ;l.enabled = 0 |
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334 | mov ecx,[ebx+offs_ligh_next] |
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335 | cmp dword[ebx+offs_ligh_prev],0 ;if (l.prev == NULL) |
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336 | jne .els_0 |
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337 | mov [eax+offs_cont_first_light],ecx ;context.first_light = l.next |
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338 | jmp @f |
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339 | .els_0: |
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340 | mov eax,[ebx+offs_ligh_prev] |
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341 | mov [eax+offs_ligh_next],ecx ;l.prev.next = l.next |
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342 | @@: |
||
343 | cmp dword[ebx+offs_ligh_next],0 |
||
344 | je .end_f |
||
345 | mov ecx,[ebx+offs_ligh_prev] |
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346 | mov eax,[ebx+offs_ligh_next] |
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347 | mov [eax+offs_ligh_prev],ecx ;l.next.prev = l.prev |
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348 | .end_f: |
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349 | ret |
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350 | endp |
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351 | |||
5256 | IgorA | 352 | align 4 |
353 | fl_1e_3 dd 1.0e-3 |
||
354 | |||
5262 | IgorA | 355 | if DEBUG |
356 | txt_mate db 'Material',0 |
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357 | txt_colo db 'Color',0 |
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5278 | IgorA | 358 | txt_rgba db 'R, G, B',0 |
5262 | IgorA | 359 | end if |
360 | |||
5153 | IgorA | 361 | ; non optimized lightening model |
362 | align 4 |
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363 | proc gl_shade_vertex, context:dword, v:dword |
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5256 | IgorA | 364 | locals |
5278 | IgorA | 365 | R dd ? ;float ebp-96 |
366 | G dd ? ;float ebp-92 |
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367 | B dd ? ;float ebp-88 |
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368 | A dd ? ;float ebp-84 |
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369 | s V3 ;ebp-80 |
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370 | d V3 ;ebp-68 |
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5262 | IgorA | 371 | tmp dd ? ;float ebp-56 |
372 | att dd ? ;float ebp-52 |
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373 | dot_spot dd ? ;float ebp-48 |
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374 | lR dd ? ;float ebp-44 |
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375 | lB dd ? ;float ebp-40 |
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376 | lG dd ? ;float ebp-36 |
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377 | twoside dd ? ;int ebp-32 |
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378 | idx dd ? ;int ebp-28 |
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5256 | IgorA | 379 | n V3 ;ebp-24 |
380 | vcoord V3 ;ebp-12 |
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381 | endl |
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382 | pushad |
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383 | ; ebx -> GLLight *l |
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384 | ; ecx -> GLMaterial *m |
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385 | ; esi -> GLVertex *v |
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386 | mov esi,[v] |
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387 | mov edx,[context] |
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5269 | IgorA | 388 | mov ecx,edx |
389 | add ecx,offs_cont_materials ;ecx(m) = &context.materials[0] |
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5256 | IgorA | 390 | mov eax,[edx+offs_cont_light_model_two_side] |
391 | mov [twoside],eax |
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5153 | IgorA | 392 | |
5256 | IgorA | 393 | add esi,offs_vert_normal |
394 | mov edi,ebp |
||
395 | sub edi,24 ;edi = &n |
||
396 | movsd ;n.X=v.normal.X |
||
397 | movsd ;n.Y=v.normal.Y |
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398 | movsd ;n.Z=v.normal.Z |
||
399 | mov esi,[v] |
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5153 | IgorA | 400 | |
5262 | IgorA | 401 | if DEBUG ;offs_mate_emission, offs_mate_ambient, offs_mate_specular, offs_mate_diffuse |
402 | push ecx |
||
403 | stdcall dbg_print,txt_mate,txt_nl |
||
404 | add ecx,offs_mate_emission |
||
405 | stdcall gl_print_matrix,ecx,1 |
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406 | add ecx,offs_mate_ambient-offs_mate_emission |
||
407 | stdcall gl_print_matrix,ecx,1 |
||
408 | add ecx,offs_mate_specular-offs_mate_ambient |
||
409 | stdcall gl_print_matrix,ecx,1 |
||
410 | add ecx,offs_mate_diffuse-offs_mate_specular |
||
411 | stdcall gl_print_matrix,ecx,1 |
||
412 | pop ecx |
||
413 | end if |
||
414 | |||
5256 | IgorA | 415 | fld dword[edx+offs_cont_ambient_light_model] |
416 | fmul dword[ecx+offs_mate_ambient] |
||
417 | fadd dword[ecx] ;offs_mate_emission=0 |
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418 | fstp dword[R] ;R=m.emission.v[0]+m.ambient.v[0]*context.ambient_light_model.v[0] |
||
419 | fld dword[edx+offs_cont_ambient_light_model+4] |
||
420 | fmul dword[ecx+offs_mate_ambient+4] |
||
421 | fadd dword[ecx+offs_mate_emission+4] |
||
422 | fstp dword[G] |
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423 | fld dword[edx+offs_cont_ambient_light_model+8] |
||
424 | fmul dword[ecx+offs_mate_ambient+8] |
||
425 | fadd dword[ecx+offs_mate_emission+8] |
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426 | fstp dword[B] |
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427 | clampf [ecx+offs_mate_diffuse+12],0,1 |
||
428 | mov [A],eax ;A=clampf(m.diffuse.v[3],0,1) |
||
5153 | IgorA | 429 | |
5256 | IgorA | 430 | mov ebx,[edx+offs_cont_first_light] |
431 | .cycle_0: ;for(l=context.first_light;l!=NULL;l=l.next) |
||
432 | or ebx,ebx |
||
433 | jz .cycle_0_end |
||
5153 | IgorA | 434 | |
5256 | IgorA | 435 | ; ambient |
436 | fld dword[ecx+offs_mate_ambient] |
||
5262 | IgorA | 437 | fmul dword[ebx] ;offs_ligh_ambient=0 |
5256 | IgorA | 438 | fstp dword[lR] ;lR=l.ambient.v[0] * m.ambient.v[0] |
439 | fld dword[ecx+offs_mate_ambient+4] |
||
440 | fmul dword[ebx+offs_ligh_ambient+4] |
||
441 | fstp dword[lG] ;lG=l.ambient.v[1] * m.ambient.v[1] |
||
442 | fld dword[ecx+offs_mate_ambient+8] |
||
443 | fmul dword[ebx+offs_ligh_ambient+8] |
||
444 | fstp dword[lB] ;lB=l.ambient.v[2] * m.ambient.v[2] |
||
5153 | IgorA | 445 | |
5269 | IgorA | 446 | fld dword[ebx+offs_ligh_position+offs_W] |
447 | ftst ;if (l.position.v[3] == 0) |
||
448 | fstsw ax |
||
449 | sahf |
||
5256 | IgorA | 450 | jne .els_0 |
451 | ; light at infinity |
||
5269 | IgorA | 452 | ffree st0 ;l.position.v[3] |
453 | fincstp |
||
5256 | IgorA | 454 | mov eax,[ebx+offs_ligh_position] |
455 | mov [d],eax ;d.X=l.position.v[0] |
||
5269 | IgorA | 456 | mov eax,[ebx+offs_ligh_position+offs_Y] |
457 | mov [d+offs_Y],eax ;d.Y=l.position.v[1] |
||
458 | mov eax,[ebx+offs_ligh_position+offs_Z] |
||
459 | mov [d+offs_Z],eax ;d.Z=l.position.v[2] |
||
5256 | IgorA | 460 | mov dword[att],1.0 |
461 | jmp .els_0_end |
||
462 | .els_0: |
||
463 | ; distance attenuation |
||
5269 | IgorA | 464 | ffree st0 ;l.position.v[3] |
465 | fincstp |
||
5256 | IgorA | 466 | fld dword[ebx+offs_ligh_position] |
467 | fsub dword[esi+offs_vert_ec] |
||
468 | fstp dword[d] ;d.X=l.position.v[0]-v.ec.v[0] |
||
469 | fld dword[ebx+offs_ligh_position+offs_Y] |
||
470 | fsub dword[esi+offs_vert_ec+offs_Y] |
||
471 | fstp dword[d+offs_Y] ;d.Y=l.position.v[1]-v.ec.v[1] |
||
472 | fld dword[ebx+offs_ligh_position+offs_Z] |
||
473 | fsub dword[esi+offs_vert_ec+offs_Z] |
||
474 | fstp dword[d+offs_Z] ;d.Z=l.position.v[2]-v.ec.v[2] |
||
475 | fld dword[d] |
||
476 | fmul st0,st0 |
||
477 | fld dword[d+offs_Y] |
||
478 | fmul st0,st0 |
||
479 | faddp |
||
480 | fld dword[d+offs_Z] |
||
481 | fmul st0,st0 |
||
482 | faddp |
||
5278 | IgorA | 483 | fsqrt ;dist=sqrt(d.X^2+d.Y^2+d.Z^2) |
5256 | IgorA | 484 | fcom dword[fl_1e_3] |
485 | fstsw ax |
||
486 | sahf |
||
487 | jbe @f ;if (dist>1.0e-3) |
||
488 | fld1 |
||
489 | fdiv st0,st1 |
||
490 | fld dword[d] |
||
491 | fmul st0,st1 |
||
492 | fstp dword[d] |
||
493 | fld dword[d+offs_Y] |
||
494 | fmul st0,st1 |
||
495 | fstp dword[d+offs_Y] |
||
496 | fld dword[d+offs_Z] |
||
497 | fmul st0,st1 |
||
498 | fstp dword[d+offs_Z] |
||
499 | ffree st0 ;1.0/dist |
||
500 | fincstp |
||
501 | @@: |
||
502 | fld dword[ebx+offs_ligh_attenuation+8] |
||
503 | fmul st0,st1 ;st0 = dist * l.attenuation[2] |
||
504 | fadd dword[ebx+offs_ligh_attenuation+4] |
||
505 | fmul st0,st1 |
||
506 | fadd dword[ebx+offs_ligh_attenuation] |
||
507 | fld1 |
||
508 | fdiv st0,st1 |
||
509 | fstp dword[att] ;att = 1.0f/(l.attenuation[0]+dist*(l.attenuation[1]+dist*l.attenuation[2])) |
||
510 | ffree st0 ;1.0 |
||
511 | fincstp |
||
512 | ffree st0 ;dist |
||
513 | fincstp |
||
514 | .els_0_end: |
||
515 | fld dword[d] |
||
516 | fmul dword[n] |
||
517 | fld dword[d+offs_Y] |
||
518 | fmul dword[n+offs_Y] |
||
519 | faddp |
||
520 | fld dword[d+offs_Z] |
||
521 | fmul dword[n+offs_Z] |
||
522 | faddp ;dot = d.X*n.X+d.Y*n.Y+d.Z*n.Z |
||
523 | cmp dword[twoside],0 ;if (twoside && dot < 0) |
||
524 | je @f |
||
525 | ftst ;if (dot<0) |
||
526 | fstsw ax |
||
527 | sahf |
||
528 | jae @f |
||
529 | fchs ;dot = -dot |
||
530 | @@: |
||
531 | ftst ;if (dot>0) |
||
532 | fstsw ax |
||
533 | sahf |
||
5269 | IgorA | 534 | jbe .if0_end |
5256 | IgorA | 535 | ; diffuse light |
536 | fld dword[ecx+offs_mate_diffuse] |
||
537 | fmul dword[ebx+offs_ligh_diffuse] |
||
538 | fmul st0,st1 |
||
539 | fadd dword[lR] |
||
540 | fstp dword[lR] ;lR+=dot * l.diffuse.v[0] * m.diffuse.v[0] |
||
541 | fld dword[ecx+offs_mate_diffuse+4] |
||
542 | fmul dword[ebx+offs_ligh_diffuse+4] |
||
543 | fmul st0,st1 |
||
544 | fadd dword[lG] |
||
545 | fstp dword[lG] ;lG+=dot * l.diffuse.v[1] * m.diffuse.v[1] |
||
546 | fld dword[ecx+offs_mate_diffuse+8] |
||
547 | fmul dword[ebx+offs_ligh_diffuse+8] |
||
548 | fmul st0,st1 |
||
549 | fadd dword[lB] |
||
550 | fstp dword[lB] ;lB+=dot * l.diffuse.v[2] * m.diffuse.v[2] |
||
551 | ffree st0 ;dot |
||
552 | fincstp |
||
5153 | IgorA | 553 | |
5256 | IgorA | 554 | ; spot light |
555 | fld dword[ebx+offs_ligh_spot_cutoff] |
||
556 | fcomp dword[an180f] ;if (l.spot_cutoff != 180) |
||
557 | fstsw ax |
||
558 | sahf |
||
5278 | IgorA | 559 | je .if1_end |
5256 | IgorA | 560 | fld dword[ebx+offs_ligh_norm_spot_direction] |
561 | fmul dword[d] |
||
562 | fld dword[ebx+offs_ligh_norm_spot_direction+4] |
||
563 | fmul dword[d+offs_Y] |
||
564 | faddp |
||
565 | fld dword[ebx+offs_ligh_norm_spot_direction+8] |
||
566 | fmul dword[d+offs_Z] |
||
567 | faddp |
||
568 | fchs |
||
569 | fst dword[dot_spot] |
||
570 | cmp dword[twoside],0 ;if (twoside && dot_spot < 0) |
||
571 | je @f |
||
572 | ftst ;if (dot_spot<0) |
||
573 | fstsw ax |
||
574 | sahf |
||
575 | jae @f |
||
576 | fchs ;dot_spot = -dot_spot |
||
577 | @@: |
||
578 | fcom dword[ebx+offs_ligh_cos_spot_cutoff] ;if (dot_spot < l.cos_spot_cutoff) |
||
579 | fstsw ax |
||
580 | sahf |
||
581 | jae .els_1 |
||
582 | ; no contribution |
||
583 | ffree st0 ;dot_spot |
||
584 | fincstp |
||
585 | mov ebx,[ebx+offs_ligh_next] |
||
586 | jmp .cycle_0 ;continue |
||
587 | .els_1: |
||
588 | ; TODO: optimize |
||
589 | fld dword[ebx+offs_ligh_spot_exponent] |
||
590 | ftst ;if (l.spot_exponent > 0) |
||
591 | fstsw ax |
||
592 | sahf |
||
593 | jbe @f |
||
594 | fxch st1 ;dot_spot <--> l.spot_exponent |
||
595 | ;Вычисляем x^y |
||
596 | ;fld y |
||
597 | ;fld x |
||
598 | fyl2x ;Стек FPU теперь содержит: st0=z=y*log2(x): |
||
599 | ;Теперь считаем 2**z: |
||
600 | fld st0 ;Создаем еще одну копию z |
||
601 | frndint ;Округляем |
||
602 | fsubr st0,st1 ;st1=z, st0=z-trunc(z) |
||
603 | f2xm1 ;st1=z, st0=2**(z-trunc(z))-1 |
||
604 | fld1 |
||
605 | faddp ;st1=z, st0=2**(z-trunc(z)) |
||
606 | fscale ;st1=z, st0=(2**trunc(z))*(2**(z-trunc(z)))=2**t |
||
607 | fxch st1 |
||
608 | fstp st ;Результат остается на вершине стека st0 |
||
609 | fmul dword[att] |
||
610 | fstp dword[att] ;att=att*pow(dot_spot,l.spot_exponent) |
||
5387 | IgorA | 611 | jmp .if1_end_f1 |
5256 | IgorA | 612 | @@: |
613 | ffree st0 ;l.spot_exponent |
||
614 | fincstp |
||
5387 | IgorA | 615 | .if1_end_f1: |
5256 | IgorA | 616 | ffree st0 ;dot_spot |
617 | fincstp |
||
618 | .if1_end: |
||
5153 | IgorA | 619 | |
5256 | IgorA | 620 | ; specular light |
621 | cmp dword[edx+offs_cont_local_light_model],0 ;if (c.local_light_model) |
||
622 | je .els_2 |
||
623 | mov eax,[esi+offs_vert_ec] |
||
624 | mov [vcoord],eax ;vcoord.X=v.ec.X |
||
625 | mov eax,[esi+offs_vert_ec+offs_Y] |
||
626 | mov [vcoord+offs_Y],eax ;vcoord.Y=v.ec.Y |
||
627 | mov eax,[esi+offs_vert_ec+offs_Z] |
||
628 | mov [vcoord+offs_Z],eax ;vcoord.Z=v.ec.Z |
||
629 | mov eax,ebp |
||
630 | sub eax,12 ;eax = &vcoord |
||
631 | stdcall gl_V3_Norm, eax |
||
632 | fld dword[d] |
||
633 | fsub dword[vcoord] |
||
634 | fstp dword[s] ;s.X=d.X-vcoord.X |
||
635 | fld dword[d+offs_Y] |
||
636 | fsub dword[vcoord+offs_Y] |
||
637 | fstp dword[s+offs_Y] ;s.Y=d.Y-vcoord.Y |
||
638 | fld dword[d+offs_Z] |
||
639 | fsub dword[vcoord+offs_Z] |
||
640 | fstp dword[s+offs_Z] ;s.Z=d.Z-vcoord.Z |
||
641 | jmp .els_2_end |
||
642 | .els_2: |
||
643 | mov eax,[d] |
||
644 | mov [s],eax ;s.X=d.X |
||
645 | mov eax,[d+offs_Y] |
||
646 | mov [s+offs_Y],eax ;s.Y=d.Y |
||
647 | fld1 |
||
648 | fadd dword[d+offs_Z] |
||
649 | fstp dword[s+offs_Z] ;s.Z=d.Z+1.0 |
||
650 | .els_2_end: |
||
651 | fld dword[n] |
||
5387 | IgorA | 652 | fmul dword[s] |
5256 | IgorA | 653 | fld dword[n+offs_Y] |
5387 | IgorA | 654 | fmul dword[s+offs_Y] |
5256 | IgorA | 655 | faddp |
656 | fld dword[n+offs_Z] |
||
5387 | IgorA | 657 | fmul dword[s+offs_Z] |
658 | faddp ;dot_spec = n.X*s.X +n.Y*s.Y +n.Z*s.Z |
||
5256 | IgorA | 659 | cmp dword[twoside],0 ;if (twoside && dot_spec < 0) |
660 | je @f |
||
661 | ftst ;if (dot_spec < 0) |
||
662 | fstsw ax |
||
663 | sahf |
||
664 | jae @f |
||
665 | fchs ;dot_spec = -dot_spec |
||
666 | @@: |
||
667 | ftst ;if (dot_spec > 0) |
||
668 | fstsw ax |
||
669 | sahf |
||
5269 | IgorA | 670 | jbe .if0_end |
5256 | IgorA | 671 | fld dword[s] |
672 | fmul st0,st0 |
||
673 | fld dword[s+offs_Y] |
||
674 | fmul st0,st0 |
||
675 | faddp |
||
676 | fld dword[s+offs_Z] |
||
677 | fmul st0,st0 |
||
5278 | IgorA | 678 | faddp ;st0 = s.X^2 +s.Y^2 +s.Z^2 |
5256 | IgorA | 679 | fsqrt |
680 | fcom dword[fl_1e_3] |
||
681 | fstsw ax |
||
682 | sahf |
||
683 | jbe @f ;if (tmp > 1.0e-3) |
||
684 | fdiv st1,st0 ;dot_spec /= tmp |
||
685 | @@: |
||
686 | ffree st0 ;tmp |
||
687 | fincstp |
||
5153 | IgorA | 688 | |
5256 | IgorA | 689 | ; TODO: optimize |
690 | ; testing specular buffer code |
||
691 | ; dot_spec= pow(dot_spec,m.shininess) |
||
692 | stdcall specbuf_get_buffer, edx, dword[ecx+offs_mate_shininess_i], dword[ecx+offs_mate_shininess] |
||
5262 | IgorA | 693 | mov edi,eax ;edi = specbuf |
5269 | IgorA | 694 | mov dword[idx],SPECULAR_BUFFER_SIZE ;idx = SPECULAR_BUFFER_SIZE |
5256 | IgorA | 695 | fld1 |
696 | fcomp |
||
697 | fstsw ax |
||
5269 | IgorA | 698 | fild dword[idx] |
5256 | IgorA | 699 | sahf |
5278 | IgorA | 700 | jbe @f ;if(dot_spec < 1.0) st0=1 st1=dot_spec |
5269 | IgorA | 701 | fmul st0,st1 ;idx *= dot_spec |
5256 | IgorA | 702 | @@: |
5269 | IgorA | 703 | fistp dword[idx] |
5256 | IgorA | 704 | ffree st0 ;dot_spec |
705 | fincstp |
||
706 | shl dword[idx],2 |
||
5262 | IgorA | 707 | add edi,dword[idx] |
708 | fld dword[edi+offs_spec_buf] ;dot_spec = specbuf.buf[idx] |
||
5256 | IgorA | 709 | fld dword[ebx+offs_ligh_specular] |
710 | fmul st0,st1 |
||
711 | fmul dword[ecx+offs_mate_specular] |
||
712 | fadd dword[lR] |
||
713 | fstp dword[lR] ;lR+=dot_spec * l.specular.v[0] * m.specular.v[0] |
||
5262 | IgorA | 714 | fld dword[ebx+offs_ligh_specular+4] |
5256 | IgorA | 715 | fmul st0,st1 |
5262 | IgorA | 716 | fmul dword[ecx+offs_mate_specular+4] |
5256 | IgorA | 717 | fadd dword[lG] |
718 | fstp dword[lG] ;lG+=dot_spec * l.specular.v[1] * m.specular.v[1] |
||
5262 | IgorA | 719 | fld dword[ebx+offs_ligh_specular+8] |
5256 | IgorA | 720 | fmul st0,st1 |
5262 | IgorA | 721 | fmul dword[ecx+offs_mate_specular+8] |
5256 | IgorA | 722 | fadd dword[lB] |
723 | fstp dword[lB] ;lB+=dot_spec * l.specular.v[2] * m.specular.v[2] |
||
724 | .if0_end: |
||
725 | ffree st0 ;dot [or] dot_spec |
||
726 | fincstp |
||
727 | .if2_end: |
||
5153 | IgorA | 728 | |
5256 | IgorA | 729 | fld dword[att] |
730 | fld dword[lR] |
||
731 | fmul st0,st1 |
||
732 | fadd dword[R] |
||
733 | fstp dword[R] ;R += att * lR |
||
734 | fld dword[lG] |
||
735 | fmul st0,st1 |
||
736 | fadd dword[G] |
||
737 | fstp dword[G] ;G += att * lG |
||
738 | fld dword[lB] |
||
739 | fmul st0,st1 |
||
740 | fadd dword[B] |
||
741 | fstp dword[B] ;B += att * lB |
||
742 | ffree st0 ;att |
||
743 | fincstp |
||
744 | mov ebx,[ebx+offs_ligh_next] |
||
745 | jmp .cycle_0 |
||
746 | .cycle_0_end: |
||
5153 | IgorA | 747 | |
5256 | IgorA | 748 | clampf [R],0,1 |
749 | mov [esi+offs_vert_color],eax ;v.color.v[0]=clampf(R,0,1) |
||
750 | clampf [G],0,1 |
||
751 | mov [esi+offs_vert_color+4],eax ;v.color.v[1]=clampf(G,0,1) |
||
752 | clampf [B],0,1 |
||
753 | mov [esi+offs_vert_color+8],eax ;v.color.v[2]=clampf(B,0,1) |
||
754 | mov eax,[A] |
||
755 | mov [esi+offs_vert_color+12],eax ;v.color.v[3]=A |
||
5262 | IgorA | 756 | if DEBUG ;offs_vert_color |
757 | push esi |
||
758 | stdcall dbg_print,txt_colo,txt_nl |
||
759 | add esi,offs_vert_color |
||
760 | stdcall gl_print_matrix,esi,1 |
||
761 | pop esi |
||
762 | end if |
||
5256 | IgorA | 763 | popad |
5153 | IgorA | 764 | ret |
765 | endp>>>-->>0) |
||
766 |