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Rev | Author | Line No. | Line |
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5153 | IgorA | 1 | |
2 | proc glopNormal uses ecx esi edi, context:dword, p:dword |
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3 | mov esi,[p] |
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4 | add esi,4 |
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5 | mov edi,[context] |
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6 | add edi,offs_cont_current_normal |
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7 | mov ecx,3 |
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5218 | IgorA | 8 | rep movsd |
5153 | IgorA | 9 | mov dword[edi],0.0 ;context.current_normal.W = 0.0 |
5218 | IgorA | 10 | ret |
5153 | IgorA | 11 | endp |
12 | |||
13 | |||
14 | proc glopTexCoord uses ecx esi edi, context:dword, p:dword |
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15 | mov esi,[p] |
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16 | add esi,4 |
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17 | mov edi,[context] |
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18 | add edi,offs_cont_current_tex_coord |
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19 | mov ecx,4 |
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20 | rep movsd |
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21 | ret |
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22 | endp |
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23 | |||
24 | |||
25 | proc glopEdgeFlag uses eax ebx, context:dword, p:dword |
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26 | mov eax,[context] |
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27 | mov ebx,[p] |
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28 | mov ebx,[ebx+4] ;ebx = p[1] |
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29 | mov dword[eax+offs_cont_current_edge_flag],ebx |
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30 | ret |
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31 | endp |
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32 | |||
33 | |||
34 | proc glopColor uses eax ecx esi edi, context:dword, p:dword |
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35 | locals |
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36 | q rd 7 |
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37 | endl |
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38 | ;current_color[3] = p[1-4] |
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39 | ;longcurrent_color[2] = p[5-7] |
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40 | mov esi,[p] |
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41 | add esi,4 |
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42 | mov edi,[context] |
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43 | add edi,offs_cont_current_color |
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44 | mov ecx,7 |
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45 | rep movsd |
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46 | |||
47 | |||
48 | cmp dword[eax+offs_cont_color_material_enabled],0 |
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5213 | IgorA | 49 | je @f |
50 | mov dword[q],OP_Material |
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5153 | IgorA | 51 | mov ecx,[eax+offs_cont_current_color_material_mode] |
52 | mov dword[q+4],ecx |
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53 | mov ecx,[eax+offs_cont_current_color_material_type] |
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54 | mov dword[q+8],ecx |
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55 | mov esi,[p] |
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56 | add esi,4 |
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57 | mov edi,ebp |
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5213 | IgorA | 58 | sub edi,16 ;edi = &q[3] |
59 | mov ecx,4 |
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5153 | IgorA | 60 | rep movsd |
61 | ;mov edi,ebp |
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5262 | IgorA | 62 | sub edi,28 ;edi = &q |
63 | stdcall glopMaterial, eax,edi |
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64 | @@: |
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5153 | IgorA | 65 | ret |
66 | endp |
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67 | |||
68 | |||
69 | proc gl_eval_viewport uses eax, context:dword |
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70 | locals |
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71 | zsize dd ? ;float |
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72 | endl |
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73 | mov eax,[context] |
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74 | add eax,offs_cont_viewport ;eax = (GLViewport*) v |
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75 | |||
76 | |||
77 | fild dword[zsize] |
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78 | fstp dword[zsize] |
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79 | |||
80 | |||
81 | fld1 |
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82 | fadd st1,st0 ;st1 = 2.0 |
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83 | fdiv st0,st1 ;st0 = 0.5 |
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84 | |||
85 | |||
86 | fsub st0,st1 |
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87 | fdiv st0,st2 |
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88 | fst dword[eax+offs_vpor_scale+offs_X] |
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89 | fiadd dword[eax+offs_vpor_xmin] |
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90 | fstp dword[eax+offs_vpor_trans+offs_X] |
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91 | |||
92 | |||
93 | fsub st0,st1 |
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94 | fdiv st0,st2 |
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95 | fchs |
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96 | fst dword[eax+offs_vpor_scale+offs_Y] |
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97 | fchs |
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98 | fiadd dword[eax+offs_vpor_ymin] |
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99 | fstp dword[eax+offs_vpor_trans+offs_Y] |
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100 | |||
101 | |||
102 | fsub st0,st1 |
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103 | fdiv st0,st2 |
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104 | fchs |
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105 | fst dword[eax+offs_vpor_scale+offs_Z] |
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106 | fchs |
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107 | mov dword[zsize],(1 shl ZB_POINT_Z_FRAC_BITS) / 2 |
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108 | fiadd dword[zsize] |
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109 | fstp dword[eax+offs_vpor_trans+offs_Z] |
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110 | ret |
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111 | endp |
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112 | |||
113 | |||
114 | |||
115 | proc glopBegin uses eax ebx ecx edx, context:dword, p:dword |
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116 | locals |
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117 | tmp M4 |
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118 | endl |
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119 | ; assert(c->in_begin == 0); |
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120 | |||
121 | |||
122 | mov ebx,[p] |
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123 | mov ebx,[ebx+4] ;ebx = p[1] |
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124 | mov [edx+offs_cont_begin_type],ebx |
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125 | mov dword[edx+offs_cont_in_begin],1 |
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126 | mov dword[edx+offs_cont_vertex_n],0 |
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127 | mov dword[edx+offs_cont_vertex_cnt],0 |
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128 | |||
129 | |||
130 | jnc .end_mmpu |
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131 | |||
132 | |||
133 | je @f |
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134 | if DEBUG ;context.matrix_stack_ptr[0] |
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5256 | IgorA | 135 | stdcall gl_print_matrix,dword[edx+offs_cont_matrix_stack_ptr],4 |
136 | end if |
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137 | ; precompute inverse modelview |
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5153 | IgorA | 138 | mov ebx,ebp |
139 | sub ebx,64 |
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140 | stdcall gl_M4_Inv, ebx,dword[edx+offs_cont_matrix_stack_ptr] |
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5256 | IgorA | 141 | if DEBUG ;tmp |
142 | stdcall dbg_print,txt_sp,txt_nl |
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143 | stdcall gl_print_matrix,ebx,4 |
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144 | end if |
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145 | push ebx |
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146 | mov ebx,edx |
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147 | add ebx,offs_cont_matrix_model_view_inv |
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148 | stdcall gl_M4_Transpose, ebx |
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149 | if DEBUG ;context.matrix_model_view_inv |
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150 | stdcall dbg_print,txt_sp,txt_nl |
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151 | stdcall gl_print_matrix,ebx,4 |
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152 | end if |
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153 | jmp .end_if_0 |
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5153 | IgorA | 154 | @@: |
155 | mov ecx,edx |
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156 | add ecx,offs_cont_matrix_model_projection |
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157 | ; precompute projection matrix |
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158 | stdcall gl_M4_Mul, ecx,dword[edx+offs_cont_matrix_stack_ptr+4],dword[edx+offs_cont_matrix_stack_ptr] |
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159 | |||
5213 | IgorA | 160 | |
5153 | IgorA | 161 | mov dword[edx+offs_cont_matrix_model_projection_no_w_transform],0 |
162 | fldz |
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163 | fld dword[ecx+12*4] |
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164 | fcomp st1 |
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165 | fstsw ax |
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166 | sahf |
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167 | jne .end_if_0 |
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168 | fld dword[ecx+13*4] |
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169 | fcomp st1 |
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170 | fstsw ax |
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171 | sahf |
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172 | jne .end_if_0 |
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173 | fld dword[ecx+14*4] |
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174 | fcomp st1 |
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175 | fstsw ax |
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176 | sahf |
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177 | jne .end_if_0 |
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178 | mov dword[edx+offs_cont_matrix_model_projection_no_w_transform],1 |
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179 | .end_if_0: |
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180 | |||
181 | |||
182 | mov eax,edx |
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5218 | IgorA | 183 | add eax,offs_cont_matrix_stack_ptr+8 |
184 | stdcall gl_M4_IsId,eax |
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185 | xor eax,1 |
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186 | mov dword[edx+offs_cont_apply_texture_matrix],eax |
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187 | |||
5153 | IgorA | 188 | |
189 | .end_mmpu: |
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190 | |||
191 | |||
192 | cmp dword[edx+offs_cont_viewport+offs_vpor_updated],0 ;if (context.viewport.updated) |
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193 | je @f |
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194 | stdcall gl_eval_viewport,edx |
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195 | mov dword[edx+offs_cont_viewport+offs_vpor_updated],0 |
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196 | @@: |
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197 | ; triangle drawing functions |
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198 | cmp dword[edx+offs_cont_render_mode],GL_SELECT |
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199 | jne @f |
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200 | mov dword[edx+offs_cont_draw_triangle_front],gl_draw_triangle_select |
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201 | mov dword[edx+offs_cont_draw_triangle_back],gl_draw_triangle_select |
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202 | jmp .end_if_2 |
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203 | @@: |
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204 | |||
205 | |||
206 | jne @f |
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207 | mov dword[edx+offs_cont_draw_triangle_front],gl_draw_triangle_point |
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208 | jmp .end_if_1 |
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209 | @@: |
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210 | cmp dword[edx+offs_cont_polygon_mode_front],GL_LINE |
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211 | jne @f |
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212 | mov dword[edx+offs_cont_draw_triangle_front],gl_draw_triangle_line |
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213 | jmp .end_if_1 |
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214 | @@: ;default: |
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215 | mov dword[edx+offs_cont_draw_triangle_front],gl_draw_triangle_fill |
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216 | .end_if_1: |
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217 | |||
218 | |||
219 | jne @f |
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220 | mov dword[edx+offs_cont_draw_triangle_back],gl_draw_triangle_point |
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221 | jmp .end_if_2 |
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222 | @@: |
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223 | cmp dword[edx+offs_cont_polygon_mode_back],GL_LINE |
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224 | jne @f |
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225 | mov dword[edx+offs_cont_draw_triangle_back],gl_draw_triangle_line |
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226 | jmp .end_if_2 |
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227 | @@: ;default: |
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228 | mov dword[edx+offs_cont_draw_triangle_back],gl_draw_triangle_fill |
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229 | .end_if_2: |
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230 | ret |
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231 | endp |
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232 | |||
233 | |||
234 | ; TODO : handle all cases |
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235 | align 4 |
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236 | proc gl_vertex_transform, context:dword, v:dword |
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237 | pushad |
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238 | mov eax,[context] |
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239 | mov edx,[v] |
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240 | cmp dword[eax+offs_cont_lighting_enabled],0 ;if (context.lighting_enabled) |
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241 | je .els_0 |
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242 | ; eye coordinates needed for lighting |
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243 | mov ebx,dword[eax+offs_cont_matrix_stack_ptr] |
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244 | finit |
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245 | fld dword[edx+offs_vert_coord+offs_X] |
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246 | fld dword[edx+offs_vert_coord+offs_Y] |
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247 | fld dword[edx+offs_vert_coord+offs_Z] |
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248 | |||
249 | |||
250 | .cycle_0: |
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251 | fld dword[ebx] ;st0 = m[0] |
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252 | fmul st0,st3 ;st0 *= v.coord.X |
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253 | fld dword[ebx+4] ;st0 = m[1] |
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254 | fmul st0,st3 ;st0 *= v.coord.Y |
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255 | faddp ;st0 = v.coord.X * m[0] + v.coord.Y * m[1] |
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5269 | IgorA | 256 | fld dword[ebx+8] ;st0 = m[2] |
5153 | IgorA | 257 | fmul st0,st2 ;st0 *= v.coord.Z |
5269 | IgorA | 258 | fadd dword[ebx+12] ;st0 += m[3] |
5153 | IgorA | 259 | faddp ;st0 += v.ec.X |
5269 | IgorA | 260 | fstp dword[edx+offs_vert_ec] ;v.ec.X = v.coord.X * m[0] + v.coord.Y * m[1] + v.coord.Z * m[2] + m[3] |
5153 | IgorA | 261 | add ebx,16 ;следущая строка матрицы |
262 | add edx,4 ;следущая координата вектора |
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263 | loop .cycle_0 |
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264 | ffree st0 |
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5218 | IgorA | 265 | fincstp |
266 | ffree st0 |
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267 | fincstp |
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268 | ffree st0 |
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269 | fincstp |
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270 | |||
5153 | IgorA | 271 | |
272 | mov ebx,dword[eax+offs_cont_matrix_stack_ptr+4] |
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273 | mov edx,[v] |
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274 | |||
5218 | IgorA | 275 | |
5153 | IgorA | 276 | fld dword[edx+offs_vert_ec+offs_Y] |
277 | fld dword[edx+offs_vert_ec+offs_Z] |
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278 | |||
279 | |||
280 | .cycle_1: |
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281 | fld dword[ebx] ;st0 = m[0] |
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282 | fmul st0,st3 ;st0 *= v.ec.X |
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283 | fld dword[ebx+4] ;st0 = m[1] |
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284 | fmul st0,st3 ;st0 *= v.ec.Y |
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285 | faddp ;st0 = v.ec.X * m[0] + v.ec.Y * m[1] |
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5269 | IgorA | 286 | fld dword[ebx+8] ;st0 = m[2] |
5153 | IgorA | 287 | fmul st0,st2 ;st0 *= v.ec.Z |
5269 | IgorA | 288 | fadd dword[ebx+12] ;st0 += m[3] |
5153 | IgorA | 289 | faddp ;st0 = v.pc.X |
5269 | IgorA | 290 | fstp dword[edx+offs_vert_pc] ;v.pc.X = v.ec.X * m[0] + v.ec.Y * m[1] + v.ec.Z * m[2] + m[3] |
5153 | IgorA | 291 | add ebx,16 ;следущая строка матрицы |
292 | add edx,4 ;следущая координата вектора |
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293 | loop .cycle_1 |
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294 | ffree st0 |
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5218 | IgorA | 295 | fincstp |
296 | ffree st0 |
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297 | fincstp |
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298 | ffree st0 |
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299 | fincstp |
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300 | |||
5153 | IgorA | 301 | |
302 | add ebx,offs_cont_matrix_model_view_inv |
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303 | mov edi,eax |
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304 | add edi,offs_cont_current_normal |
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305 | mov edx,[v] |
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306 | |||
5218 | IgorA | 307 | |
5256 | IgorA | 308 | fld dword[edi+offs_Y] |
5153 | IgorA | 309 | fld dword[edi+offs_Z] |
310 | |||
311 | |||
312 | add edx,offs_vert_normal |
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5269 | IgorA | 313 | .cycle_2: |
5153 | IgorA | 314 | fld dword[ebx] ;st0 = m[0] |
5218 | IgorA | 315 | fmul st0,st3 ;st0 *= n.X |
316 | fld dword[ebx+4] ;st0 = m[1] |
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317 | fmul st0,st3 ;st0 *= n.Y |
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318 | faddp ;st0 = n.X * m[0] + n.Y * m[1] |
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5269 | IgorA | 319 | fld dword[ebx+8] ;st0 = m[2] |
5218 | IgorA | 320 | fmul st0,st2 ;st0 *= n.Z |
5269 | IgorA | 321 | faddp ;st0 = v.normal.X |
322 | fstp dword[edx] ;v.normal.X = n.X * m[0] + n.Y * m[1] + n.Z * m[2] |
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323 | add ebx,16 ;следущая строка матрицы |
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5153 | IgorA | 324 | add edx,4 ;следущая координата вектора |
325 | loop .cycle_2 |
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326 | |||
327 | |||
328 | je .end_els |
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329 | sub edx,12 |
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5269 | IgorA | 330 | stdcall gl_V3_Norm,edx |
5218 | IgorA | 331 | jmp .end_els |
5153 | IgorA | 332 | .els_0: |
333 | ; no eye coordinates needed, no normal |
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334 | ; NOTE: W = 1 is assumed |
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335 | mov ebx,eax |
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336 | add ebx,offs_cont_matrix_model_projection |
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337 | |||
338 | |||
339 | fld dword[edx+offs_vert_coord+offs_X] |
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340 | fld dword[edx+offs_vert_coord+offs_Y] |
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341 | fld dword[edx+offs_vert_coord+offs_Z] |
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342 | |||
343 | |||
344 | add esi,offs_vert_pc |
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345 | |||
346 | |||
347 | fmul st0,st3 ;st0 *= v.coord.X |
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348 | fld dword[ebx+4] ;st0 = m[1] |
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349 | fmul st0,st3 ;st0 *= v.coord.Y |
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350 | faddp ;st0 = v.coord.X * m[0] + v.coord.Y * m[1] |
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5269 | IgorA | 351 | fld dword[ebx+8] ;st0 = m[2] |
5153 | IgorA | 352 | fmul st0,st2 ;st0 *= v.coord.Z |
5269 | IgorA | 353 | fadd dword[ebx+12] ;st0 += m[3] |
5153 | IgorA | 354 | faddp ;st0 = v.pc.X |
5269 | IgorA | 355 | fstp dword[esi] ;v.pc.X = v.coord.X * m[0] + v.coord.Y * m[1] + v.coord.Z * m[2] + m[3] |
5153 | IgorA | 356 | |
5175 | IgorA | 357 | |
5153 | IgorA | 358 | fmul st0,st3 ;st0 *= v.coord.X |
359 | fld dword[ebx+20] ;st0 = m[5] |
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360 | fmul st0,st3 ;st0 *= v.coord.Y |
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361 | faddp ;st0 = v.coord.X * m[4] + v.coord.Y * m[5] |
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5269 | IgorA | 362 | fld dword[ebx+24] ;st0 = m[6] |
5153 | IgorA | 363 | fmul st0,st2 ;st0 *= v.coord.Z |
5269 | IgorA | 364 | fadd dword[ebx+28] ;st0 += m[7] |
5153 | IgorA | 365 | faddp ;st0 = v.pc.Y |
5269 | IgorA | 366 | fstp dword[esi+4] ;v.pc.Y = v.coord.X * m[4] + v.coord.Y * m[5] + v.coord.Z * m[6] + m[7] |
367 | |||
5175 | IgorA | 368 | |
5153 | IgorA | 369 | fmul st0,st3 ;st0 *= v.coord.X |
370 | fld dword[ebx+36] ;st0 = m[9] |
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371 | fmul st0,st3 ;st0 *= v.coord.Y |
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372 | faddp ;st0 = v.coord.X * m[8] + v.coord.Y * m[9] |
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5269 | IgorA | 373 | fld dword[ebx+40] ;st0 = m[10] |
5153 | IgorA | 374 | fmul st0,st2 ;st0 *= v.coord.Z |
5269 | IgorA | 375 | fadd dword[ebx+44] ;st0 += m[11] |
5153 | IgorA | 376 | faddp ;st0 = v.pc.Z |
5269 | IgorA | 377 | fstp dword[esi+8] ;v.pc.Z = v.coord.X * m[8] + v.coord.Y * m[9] + v.coord.Z * m[10] + m[11] |
378 | |||
5153 | IgorA | 379 | |
380 | je .els_1 |
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381 | ;if (context.matrix_model_projection_no_w_transform) |
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382 | mov ebx,dword[ebx+60] ;ebx = m[15] |
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383 | mov dword[esi+12],ebx ;v.pc.W = m[15] |
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384 | jmp .end_els |
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385 | .els_1: |
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386 | fld dword[ebx+48] ;st0 = m[12] |
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387 | fmul st0,st3 ;st0 *= v.coord.X |
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388 | fld dword[ebx+52] ;st0 = m[13] |
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389 | fmul st0,st3 ;st0 *= v.coord.Y |
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390 | faddp ;st0 = v.coord.X * m[12] + v.coord.Y * m[13] |
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5269 | IgorA | 391 | fld dword[ebx+56] ;st0 = m[14] |
5153 | IgorA | 392 | fmul st0,st2 ;st0 *= v.coord.Z |
5269 | IgorA | 393 | fadd dword[ebx+60] ;st0 += m[15] |
5153 | IgorA | 394 | faddp ;st0 = v.pc.W |
5269 | IgorA | 395 | fstp dword[esi+12] ;v.pc.W = v.coord.X * m[12] + v.coord.Y * m[13] + v.coord.Z * m[14] + m[15] |
5153 | IgorA | 396 | .end_els: |
397 | ffree st0 |
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5175 | IgorA | 398 | fincstp |
399 | ffree st0 |
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400 | fincstp |
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401 | ffree st0 |
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402 | fincstp |
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403 | |||
404 | |||
5153 | IgorA | 405 | stdcall dbg_print,f_vt,txt_nl |
406 | mov edx,[v] |
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407 | add edx,offs_vert_pc |
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408 | stdcall gl_print_matrix,edx,1 |
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409 | end if |
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410 | mov edx,[v] |
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411 | stdcall gl_clipcode, dword[edx+offs_vert_pc+offs_X], dword[edx+offs_vert_pc+offs_Y],\ |
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412 | dword[edx+offs_vert_pc+offs_Z], dword[edx+offs_vert_pc+offs_W] |
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413 | mov dword[edx+offs_vert_clip_code],eax |
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414 | popad |
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415 | ret |
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416 | endp |
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417 | |||
418 | |||
419 | proc glopVertex, context:dword, p:dword |
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420 | locals |
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421 | ;ebx = GLVertex * v |
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422 | n dd ? ;ebp-4 |
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423 | endl |
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424 | pushad |
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425 | mov edx,[context] |
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426 | |||
427 | |||
428 | |||
429 | |||
430 | mov [n],ecx |
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431 | inc dword[edx+offs_cont_vertex_cnt] |
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432 | |||
433 | |||
434 | mov ecx,[edx+offs_cont_vertex_max] |
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435 | cmp dword[n],ecx |
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436 | jl @f |
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437 | shl dword[edx+offs_cont_vertex_max],1 ; just double size |
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438 | imul ecx,2*sizeof.GLVertex |
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439 | stdcall gl_malloc,ecx |
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440 | cmp eax,0 |
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441 | jne .no_err |
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442 | ;gl_fatal_error("unable to allocate GLVertex array.\n"); |
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443 | .no_err: |
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444 | mov edi,eax |
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445 | mov ebx,eax |
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446 | mov esi,[edx+offs_cont_vertex] |
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447 | mov ecx,[n] |
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448 | imul ecx,(sizeof.GLVertex)/4 ;((...)/4) что-бы использовать movsd вместо movsb |
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449 | rep movsd |
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450 | stdcall gl_free,dword[edx+offs_cont_vertex] |
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451 | mov dword[edx+offs_cont_vertex],ebx |
||
452 | @@: |
||
453 | ; new vertex entry |
||
454 | mov ebx,[n] |
||
455 | imul ebx,sizeof.GLVertex |
||
456 | add ebx,[edx+offs_cont_vertex] |
||
457 | inc dword[n] |
||
458 | |||
459 | |||
460 | add esi,4 |
||
461 | mov edi,ebx |
||
462 | add edi,offs_vert_coord ;edi = &v.coord |
||
463 | mov ecx,4 |
||
464 | rep movsd |
||
465 | |||
466 | |||
467 | |||
468 | |||
469 | cmp dword[edx+offs_cont_lighting_enabled],0 |
||
470 | je .els_0 |
||
471 | stdcall gl_shade_vertex, edx,ebx |
||
472 | jmp @f |
||
473 | .els_0: |
||
474 | mov eax,[edx+offs_cont_current_color] |
||
475 | mov [ebx+offs_vert_color],eax |
||
476 | mov eax,[edx+offs_cont_current_color+4] |
||
5213 | IgorA | 477 | mov [ebx+offs_vert_color+4],eax |
478 | mov eax,[edx+offs_cont_current_color+8] |
||
479 | mov [ebx+offs_vert_color+8],eax |
||
480 | @@: |
||
5153 | IgorA | 481 | |
482 | |||
483 | cmp dword[edx+offs_cont_texture_2d_enabled],0 |
||
484 | je @f |
||
485 | cmp dword[edx+offs_cont_apply_texture_matrix],0 |
||
486 | je .els_1 |
||
487 | mov eax,edx |
||
5269 | IgorA | 488 | add eax,offs_cont_current_tex_coord |
489 | push eax ;&context.current_tex_coord |
||
490 | mov eax,ebx |
||
491 | add eax,offs_vert_tex_coord |
||
492 | stdcall gl_M4_MulV4, eax, dword[edx+offs_cont_matrix_stack_ptr+8] |
||
493 | jmp @f |
||
5153 | IgorA | 494 | .els_1: |
495 | mov esi,edx |
||
5269 | IgorA | 496 | add esi,offs_cont_current_tex_coord |
497 | mov edi,ebx |
||
498 | add edi,offs_vert_tex_coord |
||
499 | mov ecx,4 |
||
500 | rep movsd |
||
501 | @@: |
||
5153 | IgorA | 502 | |
503 | |||
504 | cmp dword[ebx+offs_vert_clip_code],0 |
||
505 | jne @f |
||
506 | stdcall gl_transform_to_viewport, edx,ebx |
||
507 | @@: |
||
508 | |||
509 | |||
510 | mov eax,[edx+offs_cont_current_edge_flag] |
||
511 | mov dword[ebx+offs_vert_edge_flag],eax ;v.edge_flag = context.current_edge_flag |
||
512 | |||
513 | |||
514 | jne @f |
||
515 | stdcall gl_draw_point, edx, dword[edx+offs_cont_vertex] ;dword[edx+...] = &context.vertex[0] |
||
516 | mov dword[n],0 |
||
517 | jmp .end_f |
||
518 | @@: |
||
519 | cmp dword[edx+offs_cont_begin_type],GL_LINES |
||
520 | jne @f |
||
521 | cmp dword[n],2 |
||
522 | jne .end_f |
||
523 | mov eax,[edx+offs_cont_vertex] |
||
524 | push eax |
||
525 | add eax,sizeof.GLVertex |
||
526 | stdcall gl_draw_line, edx, eax |
||
5175 | IgorA | 527 | xor eax,eax |
5153 | IgorA | 528 | mov dword[n],eax |
529 | jmp .end_f |
||
530 | @@: |
||
531 | cmp dword[edx+offs_cont_begin_type],GL_LINE_STRIP |
||
532 | je .li_loop |
||
533 | cmp dword[edx+offs_cont_begin_type],GL_LINE_LOOP |
||
534 | jne @f |
||
535 | .li_loop: |
||
536 | cmp dword[n],1 |
||
537 | jne .els_2 |
||
538 | mov esi,[edx+offs_cont_vertex] |
||
539 | mov edi,esi |
||
540 | add edi,2*sizeof.GLVertex |
||
541 | mov ecx,(sizeof.GLVertex)/4 ;((...)/4) что-бы использовать movsd вместо movsb |
||
542 | rep movsd ;context.vertex[2] = context.vertex[0] |
||
543 | jmp .end_f |
||
544 | .els_2: |
||
545 | cmp dword[n],2 |
||
546 | jne .end_f ;else if (n == 2) |
||
547 | mov eax,[edx+offs_cont_vertex] |
||
548 | push eax |
||
549 | mov edi,eax |
||
5218 | IgorA | 550 | add eax,sizeof.GLVertex |
5153 | IgorA | 551 | mov esi,eax |
5218 | IgorA | 552 | stdcall gl_draw_line, edx, eax |
5175 | IgorA | 553 | mov ecx,(sizeof.GLVertex)/4 ;((...)/4) что-бы использовать movsd вместо movsb |
5153 | IgorA | 554 | rep movsd ;context.vertex[0] = context.vertex[1] |
555 | mov dword[n],1 |
||
556 | jmp .end_f |
||
557 | @@: |
||
558 | cmp dword[edx+offs_cont_begin_type],GL_TRIANGLES |
||
559 | jne @f |
||
560 | cmp dword[n],3 |
||
561 | jne .end_f |
||
562 | mov eax,[edx+offs_cont_vertex] |
||
5175 | IgorA | 563 | mov [esp-4],eax |
5218 | IgorA | 564 | add eax,sizeof.GLVertex |
5175 | IgorA | 565 | mov [esp-8],eax |
5218 | IgorA | 566 | add eax,sizeof.GLVertex |
5175 | IgorA | 567 | mov [esp-12],eax |
5218 | IgorA | 568 | sub esp,12 |
569 | stdcall gl_draw_triangle, edx |
||
570 | xor eax,eax |
||
5153 | IgorA | 571 | mov dword[n],eax |
572 | jmp .end_f |
||
573 | @@: |
||
574 | cmp dword[edx+offs_cont_begin_type],GL_TRIANGLE_STRIP |
||
575 | jne @f |
||
576 | cmp dword[edx+offs_cont_vertex_cnt],3 ;if (context.vertex_cnt >= 3) |
||
5269 | IgorA | 577 | jl .end_f |
578 | cmp dword[n],3 |
||
579 | jne .ts3 |
||
580 | xor eax,eax |
||
581 | mov dword[n],eax |
||
582 | .ts3: |
||
583 | ; needed to respect triangle orientation |
||
584 | mov eax,[edx+offs_cont_vertex] |
||
585 | bt dword[edx+offs_cont_vertex_cnt],0 |
||
586 | jc .case_1 |
||
587 | mov [esp-12],eax |
||
588 | add eax,sizeof.GLVertex |
||
589 | mov [esp-8],eax |
||
590 | add eax,sizeof.GLVertex |
||
591 | mov [esp-4],eax |
||
592 | sub esp,12 |
||
593 | stdcall gl_draw_triangle, edx ;&v[2],&v[1],&v[0] |
||
594 | jmp .end_f |
||
595 | .case_1: |
||
596 | mov [esp-4],eax |
||
597 | add eax,sizeof.GLVertex |
||
598 | mov [esp-8],eax |
||
599 | add eax,sizeof.GLVertex |
||
600 | mov [esp-12],eax |
||
601 | sub esp,12 |
||
602 | stdcall gl_draw_triangle, edx ;&v[0],&v[1],&v[2] |
||
603 | jmp .end_f |
||
5153 | IgorA | 604 | @@: |
605 | cmp dword[edx+offs_cont_begin_type],GL_TRIANGLE_FAN |
||
606 | jne @f |
||
607 | cmp dword[n],3 |
||
5218 | IgorA | 608 | jne .end_f |
5153 | IgorA | 609 | mov eax,[edx+offs_cont_vertex] |
5218 | IgorA | 610 | mov [esp-4],eax |
611 | add eax,sizeof.GLVertex |
||
612 | mov [esp-8],eax |
||
613 | mov edi,eax |
||
614 | add eax,sizeof.GLVertex |
||
615 | mov [esp-12],eax |
||
616 | mov esi,eax |
||
617 | sub esp,12 |
||
618 | stdcall gl_draw_triangle, edx |
||
619 | mov ecx,(sizeof.GLVertex)/4 ;((...)/4) что-бы использовать movsd вместо movsb |
||
620 | rep movsd ;context.vertex[1] = context.vertex[2] |
||
621 | mov dword[n],2 |
||
5153 | IgorA | 622 | jmp .end_f |
623 | @@: |
||
624 | cmp dword[edx+offs_cont_begin_type],GL_QUADS |
||
625 | jne @f |
||
626 | cmp dword[n],4 |
||
627 | jne .end_f |
||
628 | mov eax,[edx+offs_cont_vertex] |
||
5213 | IgorA | 629 | add eax,2*sizeof.GLVertex |
630 | mov dword[eax+offs_vert_edge_flag],0 ;context.vertex[2].edge_flag = 0 |
||
631 | push eax |
||
632 | sub eax,sizeof.GLVertex |
||
633 | push eax |
||
634 | sub eax,sizeof.GLVertex |
||
635 | stdcall gl_draw_triangle, edx,eax ;v0,v1,v2 |
||
636 | mov dword[eax+offs_vert_edge_flag],0 ;context.vertex[0].edge_flag = 0 |
||
637 | add eax,2*sizeof.GLVertex |
||
638 | mov dword[eax+offs_vert_edge_flag],1 ;context.vertex[2].edge_flag = 1 |
||
639 | add eax,sizeof.GLVertex |
||
640 | push eax |
||
641 | sub eax,sizeof.GLVertex |
||
642 | push eax |
||
643 | sub eax,2*sizeof.GLVertex |
||
644 | stdcall gl_draw_triangle, edx,eax ;v0,v2,v3 |
||
645 | xor eax,eax |
||
5153 | IgorA | 646 | mov dword[n],eax |
647 | jmp .end_f |
||
648 | @@: |
||
649 | cmp dword[edx+offs_cont_begin_type],GL_QUAD_STRIP |
||
650 | jne @f |
||
651 | cmp dword[n],4 |
||
5218 | IgorA | 652 | jne .end_f |
5153 | IgorA | 653 | mov eax,[edx+offs_cont_vertex] |
5218 | IgorA | 654 | mov [esp-4],eax |
655 | mov edi,eax |
||
656 | add eax,sizeof.GLVertex |
||
657 | mov [esp-8],eax |
||
658 | add eax,sizeof.GLVertex |
||
659 | mov [esp-12],eax |
||
660 | mov esi,eax |
||
661 | sub esp,12 |
||
662 | stdcall gl_draw_triangle, edx ;v0,v1,v2 |
||
663 | mov [esp-12],eax |
||
664 | add eax,sizeof.GLVertex |
||
665 | mov [esp-8],eax |
||
666 | sub eax,2*sizeof.GLVertex |
||
667 | mov [esp-4],eax |
||
668 | sub esp,12 |
||
669 | stdcall gl_draw_triangle, edx ;v1,v3,v2 |
||
670 | mov ecx,(sizeof.GLVertex)/2 ;((...)/2) копируем 2 вершины |
||
671 | rep movsd ;context.vertex[0] = context.vertex[2], context.vertex[1] = context.vertex[3] |
||
672 | mov dword[n],2 |
||
5153 | IgorA | 673 | jmp .end_f |
674 | @@: |
||
675 | cmp dword[edx+offs_cont_begin_type],GL_POLYGON |
||
676 | je .end_f |
||
5213 | IgorA | 677 | ; default: |
5153 | IgorA | 678 | ; gl_fatal_error("glBegin: type %x not handled\n", c->begin_type); |
679 | ; } |
||
680 | .end_f: |
||
681 | |||
682 | |||
683 | mov [edx+offs_cont_vertex_n],ecx |
||
684 | popad |
||
685 | ret |
||
686 | endp |
||
687 | |||
688 | |||
689 | proc glopEnd uses eax ebx ecx, context:dword, p:dword |
||
5213 | IgorA | 690 | mov eax,[context] |
5153 | IgorA | 691 | ; assert(c->in_begin == 1); |
692 | |||
693 | |||
694 | jne .else_i |
||
695 | cmp dword[eax+offs_cont_vertex_cnt],3 |
||
696 | jl .end_i |
||
697 | mov ebx,[eax+offs_cont_vertex] |
||
698 | push ebx |
||
699 | add ebx,2*sizeof.GLVertex |
||
700 | push ebx |
||
701 | stdcall gl_draw_line, eax |
||
702 | jmp .end_i |
||
703 | .else_i: |
||
704 | cmp dword[eax+offs_cont_begin_type],GL_POLYGON |
||
705 | jne .end_i |
||
706 | mov ebx,dword[eax+offs_cont_vertex_cnt] |
||
707 | @@: ;while (ebx >= 3) |
||
708 | cmp ebx,3 |
||
709 | jl .end_i |
||
710 | dec ebx |
||
5213 | IgorA | 711 | mov ecx,ebx |
712 | imul ecx,sizeof.GLVertex |
||
713 | add ecx,[eax+offs_cont_vertex] |
||
714 | push ecx ;ecx = &context.vertex[i] |
||
715 | sub ecx,sizeof.GLVertex |
||
716 | push ecx ;ecx = &context.vertex[i-1] |
||
717 | stdcall gl_draw_triangle, eax,[eax+offs_cont_vertex] |
||
718 | jmp @b |
||
5153 | IgorA | 719 | .end_i: |
720 | mov dword[eax+offs_cont_in_begin],0 |
||
721 | ret |
||
722 | endp |
||
723 |