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Rev | Author | Line No. | Line |
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1245 | hidnplayr | 1 | |
2 | ;SIZE_Y equ 350 |
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3 | ;ROUND equ 8 |
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4 | ;TEX_X equ 512 |
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5 | ;TEX_Y equ 512 |
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6 | ;TEXTURE_SIZE EQU (512*512)-1 |
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7 | ;TEX_SHIFT EQU 9 |
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8 | |||
9 | |||
10 | ;TEXTURE_SIZE EQU (TEX_X * TEX_Y)-1 |
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11 | ;Ext = SSE |
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12 | ;SSE = 3 |
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13 | ;MMX = 1 |
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14 | ;NON = 0 |
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15 | ;use32 |
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16 | ;------- Big thanks to Majuma (www.majuma.xt.pl) for absolutely great--- |
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17 | ;------- DOS 13h mode demos -------------------------------------------- |
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18 | ;------- Procedure draws triangle with two overlapped textures, I use -- |
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19 | ;--------Catmull Z-buffer algorithm- (Z coordinate interpolation)------- |
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20 | ;--------I calc texture pixel by this way: col1*col2/256 --------------- |
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21 | two_tex_triangle_z: |
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22 | ;------------------in - eax - x1 shl 16 + y1 ----------- |
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23 | ;---------------------- ebx - x2 shl 16 + y2 ----------- |
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24 | ;---------------------- ecx - x3 shl 16 + y3 ----------- |
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25 | ;---------------------- edx - pointer to b. texture----- |
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26 | ;---------------------- esi - pointer to e. texture----- |
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27 | ;---------------------- edi - pointer to screen buffer-- |
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28 | ;---------------------- stack : b. tex coordinates------ |
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29 | ;---------------------- e. tex coordinates------ |
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30 | ;---------------------- Z position coordinates-- |
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31 | ;---------------------- pointer io Z buffer----- |
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32 | ;-- Z-buffer - filled with coordinates as dword -------- |
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33 | ;-- (Z coor. as word) shl CATMULL_SHIFT ---------------- |
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34 | .b_x1 equ ebp+4 ; procedure don't save registers !!! |
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35 | .b_y1 equ ebp+6 ; each coordinate as word |
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36 | .b_x2 equ ebp+8 |
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37 | .b_y2 equ ebp+10 ; b - first texture |
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38 | .b_x3 equ ebp+12 |
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39 | .b_y3 equ ebp+14 ; e - second texture |
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40 | .e_x1 equ ebp+16 |
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41 | .e_y1 equ ebp+18 |
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42 | .e_x2 equ ebp+20 |
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43 | .e_y2 equ ebp+22 |
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44 | .e_x3 equ ebp+24 |
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45 | .e_y3 equ ebp+26 |
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46 | .z1 equ word[ebp+28] |
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47 | .z2 equ word[ebp+30] |
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48 | .z3 equ word[ebp+32] |
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49 | .z_buff equ dword[ebp+34] ; pointer to Z-buffer |
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50 | |||
51 | |||
52 | |||
53 | .t_emap equ dword[ebp-8] ; pointer to e. texture |
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54 | .x1 equ word[ebp-10] |
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55 | .y1 equ word[ebp-12] |
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56 | .x2 equ word[ebp-14] |
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57 | .y2 equ word[ebp-16] |
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58 | .x3 equ word[ebp-18] |
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59 | .y3 equ word[ebp-20] |
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60 | |||
61 | |||
62 | .dbx12 equ dword[ebp-28] |
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63 | .dby12 equ dword[ebp-32] |
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64 | .dby12q equ [ebp-32] |
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65 | .dex12 equ dword[ebp-36] |
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66 | .dey12 equ dword[ebp-40] |
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67 | .dey12q equ [ebp-40] |
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68 | .dz12 equ dword[ebp-44] |
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69 | |||
70 | |||
71 | .dbx13 equ dword[ebp-52] |
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72 | .dby13 equ dword[ebp-56] |
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73 | .dby13q equ [ebp-56] |
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74 | .dex13 equ dword[ebp-60] |
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75 | .dey13 equ dword[ebp-64] |
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76 | .dey13q equ [ebp-64] |
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77 | .dz13 equ dword[ebp-68] |
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78 | |||
79 | |||
80 | .dbx23 equ dword[ebp-76] |
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81 | .dby23 equ dword[ebp-80] |
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82 | .dby23q equ [ebp-80] |
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83 | .dex23 equ dword[ebp-84] |
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84 | .dey23 equ dword[ebp-88] |
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85 | .dey23q equ [ebp-88] |
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86 | .dz23 equ dword[ebp-92] |
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87 | |||
88 | |||
89 | .cx2 equ dword[ebp-100] |
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90 | ;.cbx1q equ [ebp-104] |
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91 | .cbx1 equ dword[ebp-104] |
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92 | .cby1 equ [ebp-108] |
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93 | ;.cbx2q [ebp-112] |
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94 | .cbx2 equ dword[ebp-112] |
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95 | .cby2 equ [ebp-116] |
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96 | ;.cex1q equ [ebp-120] |
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97 | .cex1 equ dword[ebp-120] |
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98 | .cey1 equ [ebp-124] |
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99 | ;.cex2q equ [ebp-128] |
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100 | .cex2 equ dword[ebp-128] |
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101 | .cey2 equ [ebp-132] |
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102 | |||
103 | |||
104 | .cz2 equ dword[ebp-140] |
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105 | |||
106 | |||
107 | emms |
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108 | else |
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109 | cld |
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110 | end if |
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111 | mov ebp,esp |
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112 | push edx esi ; store bump map |
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113 | ; push esi ; store e. map |
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114 | ; sub esp,120 |
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115 | .sort3: ; sort triangle coordinates... |
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116 | cmp ax,bx |
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117 | jle .sort1 |
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118 | xchg eax,ebx |
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119 | mov edx,dword[.b_x1] |
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120 | xchg edx,dword[.b_x2] |
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121 | mov dword[.b_x1],edx |
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122 | mov edx,dword[.e_x1] |
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123 | xchg edx,dword[.e_x2] |
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124 | mov dword[.e_x1],edx |
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125 | mov dx,.z1 |
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126 | xchg dx,.z2 |
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127 | mov .z1,dx |
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128 | .sort1: |
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129 | cmp bx,cx |
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130 | jle .sort2 |
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131 | xchg ebx,ecx |
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132 | mov edx,dword[.b_x2] |
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133 | xchg edx,dword[.b_x3] |
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134 | mov dword[.b_x2],edx |
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135 | mov edx,dword[.e_x2] |
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136 | xchg edx,dword[.e_x3] |
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137 | mov dword[.e_x2],edx |
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138 | mov dx,.z2 |
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139 | xchg dx,.z3 |
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140 | mov .z2,dx |
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141 | jmp .sort3 |
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142 | .sort2: |
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143 | push eax ebx ecx ; store triangle coords in variables |
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144 | ; push ebx |
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145 | ; push ecx |
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146 | |||
147 | |||
148 | and edx,ebx ; if *all* of them are negative a sign flag is raised |
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149 | and edx,ecx |
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150 | and edx,eax |
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151 | test edx,80008000h ; Check both X&Y at once |
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152 | jne .loop23_done |
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153 | ; mov edx,eax ; eax,ebx,ecx are ORd together into edx which means that |
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154 | ; or edx,ebx ; if any *one* of them is negative a sign flag is raised |
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155 | ; or edx,ecx |
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156 | ; test edx,80000000h ; Check only X |
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157 | ; jne .loop23_done |
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158 | |||
159 | |||
160 | ; jg .loop23_done |
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161 | ; cmp .x2,SIZE_X ; This can be optimized with effort |
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162 | ; jg .loop23_done |
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163 | ; cmp .x3,SIZE_X |
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164 | ; jg .loop23_done ; { |
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165 | |||
166 | |||
167 | |||
168 | sub bx,.y1 |
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169 | jnz .bt_dx12_make |
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170 | mov ecx,6 |
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171 | xor edx,edx |
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172 | @@: |
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173 | push edx ;dword 0 |
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174 | loop @b |
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175 | jmp .bt_dx12_done |
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176 | .bt_dx12_make: |
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177 | mov ax,.x2 |
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178 | sub ax,.x1 |
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179 | cwde |
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180 | movsx ebx,bx |
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181 | shl eax,ROUND |
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182 | cdq |
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183 | idiv ebx |
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184 | ; mov .dx12,eax |
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185 | push eax |
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186 | |||
187 | |||
188 | |||
189 | |||
190 | cvtsi2ss xmm3,ebx ;rcps |
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191 | ; mov eax,255 |
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192 | cvtsi2ss xmm4,[i255d] ;eax |
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193 | divss xmm3,xmm4 |
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194 | rcpss xmm3,xmm3 |
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195 | ; mulss xmm3,xmm4 |
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196 | shufps xmm3,xmm3,0 |
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197 | |||
198 | |||
199 | movd mm1,[.b_x2] |
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200 | movd mm2,[.e_x1] |
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201 | movd mm3,[.e_x2] |
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202 | ; psubsw mm3,mm2 |
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203 | ; psubsw mm1,mm0 |
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204 | pxor mm4,mm4 |
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205 | punpcklwd mm0,mm4 |
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206 | punpcklwd mm1,mm4 |
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207 | punpcklwd mm2,mm4 |
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208 | punpcklwd mm3,mm4 |
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209 | ; pslld mm0,ROUND |
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210 | ; pslld mm1,ROUND |
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211 | ; pslld mm2,ROUND |
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212 | ; pslld mm3,ROUND |
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213 | cvtpi2ps xmm0,mm0 |
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214 | movlhps xmm0,xmm0 |
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215 | cvtpi2ps xmm0,mm2 |
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216 | cvtpi2ps xmm1,mm1 |
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217 | movlhps xmm1,xmm1 |
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218 | cvtpi2ps xmm1,mm3 |
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219 | subps xmm1,xmm0 |
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220 | |||
221 | |||
222 | ; movq mm5,mm1 |
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223 | ; movq mm6,mm1 |
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224 | ; pcmpeqb mm5,mm4 |
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225 | ; psubd mm1,mm0 |
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226 | ; psubd mm3,mm2 |
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227 | |||
228 | |||
229 | ; movq mm1,[.e_x1] ; ex1 ey1 ex2 ey2 |
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230 | ; pxor |
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231 | ; punpcklhd mm0,mm1 ; lwd ; |
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232 | ; psubw mm1,mm0 ; mm1, mm0 |
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233 | ; pxor mm2,mm2 |
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234 | ; pmovmaskb eax,mm1 |
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235 | ; and eax,10101010b |
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236 | ; pcmpgtw mm2,mm1 |
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237 | ; punpcklwd mm1,mm2 |
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238 | ; psllw mm0,ROUND |
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239 | ; psllw mm1,ROUND |
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240 | ; movq mm2,mm0 |
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241 | ; psrlq mm0,32 |
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242 | |||
243 | |||
244 | ; movlhps xmm0,xmm0 |
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245 | ; cvtpi2ps xmm0,mm3 |
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246 | ; divps xmm1,xmm3 |
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247 | mulps xmm1,xmm3 |
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248 | shufps xmm1,xmm1,10110001b |
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249 | cvtps2pi mm0,xmm1 ; mm0 -> 2 delta dwords |
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250 | movhlps xmm1,xmm1 |
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251 | cvtps2pi mm1,xmm1 |
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252 | movq .dey12q,mm0 |
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253 | movq .dby12q,mm1 |
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254 | |||
255 | |||
256 | ; psrlq mm0,32 |
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257 | ; movd .dey12,mm0 |
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258 | ; movhlps xmm1,xmm1 |
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259 | ; cvtps2pi mm0,xmm1 |
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260 | ; movd .dbx12,mm0 |
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261 | ; psrlq mm0,32 |
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262 | ; movd .dby12,mm0 |
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263 | |||
264 | |||
265 | mov ax,word[.b_x2] |
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266 | sub ax,word[.b_x1] |
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267 | cwde |
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268 | shl eax,ROUND |
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269 | cdq |
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270 | idiv ebx |
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271 | ; mov .dbx12,eax |
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272 | push eax |
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273 | |||
274 | |||
275 | sub ax,word[.b_y1] |
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276 | cwde |
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277 | shl eax,ROUND |
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278 | cdq |
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279 | idiv ebx |
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280 | ; mov .dby12,eax |
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281 | push eax |
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282 | |||
283 | |||
284 | ; mov ebx,.dby12 |
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285 | ; int3 |
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286 | |||
287 | |||
288 | sub ax,word[.e_x1] |
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289 | cwde |
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290 | shl eax,ROUND |
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291 | cdq |
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292 | idiv ebx |
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293 | ; mov .dex12,eax |
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294 | push eax |
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295 | |||
296 | |||
297 | sub ax,word[.e_y1] |
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298 | cwde |
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299 | shl eax,ROUND |
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300 | cdq |
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301 | idiv ebx |
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302 | ; mov .dey12,eax |
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303 | push eax |
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304 | |||
305 | |||
306 | mov ax,.z2 |
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307 | sub ax,.z1 |
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308 | cwde |
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309 | shl eax,CATMULL_SHIFT |
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310 | cdq |
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311 | idiv ebx |
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312 | push eax |
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313 | .bt_dx12_done: |
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314 | |||
315 | |||
316 | sub bx,.y1 |
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317 | jnz .bt_dx13_make |
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318 | mov ecx,6 |
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319 | xor edx,edx |
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320 | @@: |
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321 | push edx ;dword 0 |
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322 | loop @b |
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323 | jmp .bt_dx13_done |
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324 | .bt_dx13_make: |
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325 | mov ax,.x3 |
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326 | sub ax,.x1 |
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327 | cwde |
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328 | movsx ebx,bx |
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329 | shl eax,ROUND |
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330 | cdq |
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331 | idiv ebx |
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332 | ; mov .dx13,eax |
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333 | push eax |
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334 | |||
335 | |||
336 | |||
337 | |||
338 | ; mov eax,255 |
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339 | cvtsi2ss xmm4,[i255d] |
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340 | divss xmm3,xmm4 |
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341 | rcpss xmm3,xmm3 |
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342 | ; mulss xmm3,xmm4 |
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343 | shufps xmm3,xmm3,0 |
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344 | sub esp,16 |
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345 | |||
346 | |||
347 | movd mm1,[.b_x3] |
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348 | movd mm2,[.e_x1] |
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349 | movd mm3,[.e_x3] |
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350 | |||
351 | |||
352 | punpcklwd mm0,mm4 |
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353 | punpcklwd mm1,mm4 |
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354 | punpcklwd mm2,mm4 |
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355 | punpcklwd mm3,mm4 |
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356 | |||
357 | |||
358 | movlhps xmm0,xmm0 |
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359 | cvtpi2ps xmm0,mm2 |
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360 | cvtpi2ps xmm1,mm1 |
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361 | movlhps xmm1,xmm1 |
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362 | cvtpi2ps xmm1,mm3 |
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363 | subps xmm1,xmm0 |
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364 | |||
365 | |||
366 | mulps xmm1,xmm3 |
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367 | shufps xmm1,xmm1,10110001b |
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368 | cvtps2pi mm0,xmm1 ; mm0 -> 2 delta dwords |
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369 | movhlps xmm1,xmm1 |
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370 | cvtps2pi mm1,xmm1 |
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371 | movq .dey13q,mm0 |
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372 | movq .dby13q,mm1 |
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373 | |||
374 | |||
375 | |||
376 | |||
377 | sub ax,word[.b_x1] |
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378 | cwde |
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379 | shl eax,ROUND |
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380 | cdq |
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381 | idiv ebx |
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382 | ; mov .dbx13,eax |
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383 | push eax |
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384 | |||
385 | |||
386 | sub ax,word[.b_y1] |
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387 | cwde |
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388 | shl eax,ROUND |
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389 | cdq |
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390 | idiv ebx |
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391 | ; mov .dby13,eax |
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392 | push eax |
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393 | |||
394 | |||
395 | sub ax,word[.e_x1] |
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396 | cwde |
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397 | shl eax,ROUND |
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398 | cdq |
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399 | idiv ebx |
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400 | ; mov .dex13,eax |
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401 | push eax |
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402 | |||
403 | |||
404 | sub ax,word[.e_y1] |
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405 | cwde |
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406 | shl eax,ROUND |
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407 | cdq |
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408 | idiv ebx |
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409 | ; mov .dey13,eax |
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410 | push eax |
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411 | |||
412 | |||
413 | |||
414 | |||
415 | sub ax,.z1 |
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416 | cwde |
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417 | shl eax,CATMULL_SHIFT |
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418 | cdq |
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419 | idiv ebx |
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420 | ; mov .dz13,eax |
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421 | push eax |
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422 | .bt_dx13_done: |
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423 | |||
424 | |||
425 | sub bx,.y2 |
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426 | jnz .bt_dx23_make |
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427 | mov ecx,6 |
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428 | xor edx,edx |
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429 | @@: |
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430 | push edx ;dword 0 |
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431 | loop @b |
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432 | jmp .bt_dx23_done |
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433 | .bt_dx23_make: |
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434 | mov ax,.x3 |
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435 | sub ax,.x2 |
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436 | cwde |
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437 | movsx ebx,bx |
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438 | shl eax,ROUND |
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439 | cdq |
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440 | idiv ebx |
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441 | ; mov .dx23,eax |
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442 | push eax |
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443 | |||
444 | |||
445 | |||
446 | |||
447 | ; mov eax,255 |
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448 | cvtsi2ss xmm4,[i255d] ;eax |
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449 | divss xmm3,xmm4 |
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450 | shufps xmm3,xmm3,0 |
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451 | sub esp,16 |
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452 | |||
453 | |||
454 | movd mm1,[.b_x3] |
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455 | movd mm2,[.e_x2] |
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456 | movd mm3,[.e_x3] |
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457 | |||
458 | |||
459 | punpcklwd mm0,mm4 |
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460 | punpcklwd mm1,mm4 |
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461 | punpcklwd mm2,mm4 |
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462 | punpcklwd mm3,mm4 |
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463 | |||
464 | |||
465 | movlhps xmm0,xmm0 |
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466 | cvtpi2ps xmm0,mm2 |
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467 | cvtpi2ps xmm1,mm1 |
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468 | movlhps xmm1,xmm1 |
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469 | cvtpi2ps xmm1,mm3 |
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470 | subps xmm1,xmm0 |
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471 | |||
472 | |||
473 | shufps xmm1,xmm1,10110001b |
||
474 | cvtps2pi mm0,xmm1 ; mm0 -> 2 delta dwords |
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475 | movhlps xmm1,xmm1 |
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476 | cvtps2pi mm1,xmm1 |
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477 | movq .dey23q,mm0 |
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478 | movq .dby23q,mm1 |
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479 | |||
480 | |||
481 | |||
482 | |||
483 | sub ax,word[.b_x2] |
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484 | cwde |
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485 | shl eax,ROUND |
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486 | cdq |
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487 | idiv ebx |
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488 | ; mov .dbx23,eax |
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489 | push eax |
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490 | |||
491 | |||
492 | sub ax,word[.b_y2] |
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493 | cwde |
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494 | shl eax,ROUND |
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495 | cdq |
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496 | idiv ebx |
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497 | ; mov .dby23,eax |
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498 | push eax |
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499 | |||
500 | |||
501 | sub ax,word[.e_x2] |
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502 | cwde |
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503 | shl eax,ROUND |
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504 | cdq |
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505 | idiv ebx |
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506 | ; mov .dex23,eax |
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507 | push eax |
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508 | |||
509 | |||
510 | sub ax,word[.e_y2] |
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511 | cwde |
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512 | shl eax,ROUND |
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513 | cdq |
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514 | idiv ebx |
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515 | ; mov .dey23,eax |
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516 | push eax |
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517 | end if |
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518 | mov ax,.z3 |
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519 | sub ax,.z2 |
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520 | cwde |
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521 | shl eax,CATMULL_SHIFT |
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522 | cdq |
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523 | idiv ebx |
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524 | ; mov .dz23,eax |
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525 | push eax |
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526 | ; sub esp,40 |
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527 | .bt_dx23_done: |
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528 | movsx eax,.x1 |
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529 | shl eax,ROUND |
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530 | ; mov .cx1,eax |
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531 | ; mov .cx2,eax |
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532 | push eax eax |
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533 | ; push eax |
||
534 | |||
535 | |||
536 | shl eax,ROUND |
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537 | mov .cbx1,eax |
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538 | mov .cbx2,eax |
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539 | ; push eax eax |
||
540 | ; push eax |
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541 | |||
542 | |||
543 | shl eax,ROUND |
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544 | mov .cby1,eax |
||
545 | mov .cby2,eax |
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546 | ; push eax eax |
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547 | ; push eax |
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548 | |||
549 | |||
550 | shl eax,ROUND |
||
551 | mov .cex1,eax |
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552 | mov .cex2,eax |
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553 | ; push eax eax |
||
554 | ;push eax |
||
555 | |||
556 | |||
557 | shl eax,ROUND |
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558 | mov .cey1,eax |
||
559 | mov .cey2,eax |
||
560 | sub esp,32 |
||
561 | ; push eax eax |
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562 | ;push eax |
||
563 | |||
564 | |||
565 | shl eax,CATMULL_SHIFT |
||
566 | ; mov .cz1,eax |
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567 | ; mov .cz2,eax |
||
568 | push eax eax |
||
569 | ;push eax |
||
570 | |||
571 | |||
572 | cmp cx,.y2 |
||
573 | jge .loop12_done |
||
574 | .loop12: |
||
575 | call .call_line |
||
576 | |||
577 | |||
578 | add .cx1,eax |
||
579 | mov ebx,.dx12 |
||
580 | add .cx2,ebx |
||
581 | |||
582 | |||
583 | movq mm0,.cby2 ; with this optimization object |
||
584 | movq mm1,.cby1 ; looks bit annoying |
||
585 | movq mm2,.cey2 |
||
586 | movq mm3,.cey1 |
||
587 | paddd mm0,.dby12q |
||
588 | paddd mm1,.dby13q |
||
589 | paddd mm2,.dey12q |
||
590 | paddd mm3,.dey13q |
||
591 | movq .cby2,mm0 |
||
592 | movq .cby1,mm1 |
||
593 | movq .cey1,mm3 |
||
594 | movq .cey2,mm2 |
||
595 | else |
||
596 | mov edx,.dbx13 |
||
597 | add .cbx1,edx |
||
598 | mov eax,.dbx12 |
||
599 | add .cbx2,eax |
||
600 | mov ebx,.dby13 |
||
601 | add .cby1,ebx |
||
602 | mov edx,.dby12 |
||
603 | add .cby2,edx |
||
604 | |||
605 | |||
606 | add .cex1,eax |
||
607 | mov ebx,.dex12 |
||
608 | add .cex2,ebx |
||
609 | mov edx,.dey13 |
||
610 | add .cey1,edx |
||
611 | mov eax,.dey12 |
||
612 | add .cey2,eax |
||
613 | |||
614 | |||
615 | mov ebx,.dz13 |
||
616 | add .cz1,ebx |
||
617 | mov edx,.dz12 |
||
618 | add .cz2,edx |
||
619 | |||
620 | |||
621 | cmp cx,.y2 |
||
622 | jl .loop12 |
||
623 | .loop12_done: |
||
624 | |||
625 | |||
626 | cmp cx,.y3 |
||
627 | jge .loop23_done |
||
628 | |||
629 | |||
630 | shl eax,CATMULL_SHIFT |
||
631 | mov .cz2,eax |
||
632 | |||
633 | |||
634 | shl eax,ROUND |
||
635 | mov .cx2,eax |
||
636 | |||
637 | |||
638 | shl eax,ROUND |
||
639 | mov .cbx2,eax |
||
640 | |||
641 | |||
642 | shl eax,ROUND |
||
643 | mov .cby2,eax |
||
644 | |||
645 | |||
646 | shl eax,ROUND |
||
647 | mov .cex2,eax |
||
648 | |||
649 | |||
650 | shl eax,ROUND |
||
651 | mov .cey2,eax |
||
652 | |||
653 | |||
654 | call .call_line |
||
655 | ;if Ext = NON |
||
656 | mov eax,.dx13 |
||
657 | add .cx1,eax |
||
658 | mov ebx,.dx23 |
||
659 | add .cx2,ebx |
||
660 | |||
661 | |||
662 | movq mm0,.cby2 ; with this mmx optimization object looks bit |
||
663 | movq mm1,.cby1 ; annoying |
||
664 | movq mm2,.cey2 |
||
665 | movq mm3,.cey1 |
||
666 | paddd mm0,.dby23q |
||
667 | paddd mm1,.dby13q |
||
668 | paddd mm2,.dey23q |
||
669 | paddd mm3,.dey13q |
||
670 | movq .cby2,mm0 |
||
671 | movq .cby1,mm1 |
||
672 | movq .cey2,mm2 |
||
673 | movq .cey1,mm3 |
||
674 | |||
675 | |||
676 | mov edx,.dbx13 |
||
677 | add .cbx1,edx |
||
678 | mov eax,.dbx23 |
||
679 | add .cbx2,eax |
||
680 | mov ebx,.dby13 |
||
681 | add .cby1,ebx |
||
682 | mov edx,.dby23 |
||
683 | add .cby2,edx |
||
684 | |||
685 | |||
686 | add .cex1,eax |
||
687 | mov ebx,.dex23 |
||
688 | add .cex2,ebx |
||
689 | mov edx,.dey13 |
||
690 | add .cey1,edx |
||
691 | mov eax,.dey23 |
||
692 | add .cey2,eax |
||
693 | end if |
||
694 | |||
695 | |||
696 | add .cz1,ebx |
||
697 | mov edx,.dz23 |
||
698 | add .cz2,edx |
||
699 | ;else |
||
700 | ; movq mm0,.db13q |
||
701 | ; movq mm1,.cbx1q |
||
702 | |||
703 | |||
704 | cmp cx,.y3 |
||
705 | jl .loop23 |
||
706 | .loop23_done: |
||
707 | |||
708 | |||
709 | ret 34 |
||
710 | |||
711 | |||
712 | |||
713 | |||
714 | |||
715 | |||
716 | push .cz2 |
||
717 | push .z_buff |
||
718 | push .t_emap |
||
719 | push .t_bmap |
||
720 | push dword .cey2 |
||
721 | push .cex2 |
||
722 | push dword .cey1 |
||
723 | push .cex1 |
||
724 | push dword .cby2 |
||
725 | push .cbx2 |
||
726 | push dword .cby1 |
||
727 | push .cbx1 |
||
728 | push ecx |
||
729 | |||
730 | |||
731 | sar eax,ROUND |
||
732 | mov ebx,.cx2 |
||
733 | sar ebx,ROUND |
||
734 | |||
735 | |||
736 | |||
737 | |||
738 | ret |
||
739 | two_tex_line_z: |
||
740 | ;--------------in: eax - x1 |
||
741 | ;-------------- ebx - x2 |
||
742 | ;-------------- edi - pointer to screen buffer |
||
743 | ;stack - another parameters : |
||
744 | .y equ dword [ebp+4] |
||
745 | .bx1q equ [ebp+8] |
||
746 | .bx1 equ dword [ebp+8] ; --- |
||
747 | .by1 equ dword [ebp+12] ; | |
||
748 | .bx2q equ [ebp+16] |
||
749 | .bx2 equ dword [ebp+16] ; | |
||
750 | .by2 equ dword [ebp+20] ; |> b. texture and e. texture coords |
||
751 | .ex1q equ [ebp+24] |
||
752 | .ex1 equ dword [ebp+24] ; |> shifted shl ROUND |
||
753 | .ey1 equ dword [ebp+28] ; | |
||
754 | .ex2q equ [ebp+32] |
||
755 | .ex2 equ dword [ebp+32] ; | |
||
756 | .ey2 equ dword [ebp+36] ; --- |
||
757 | .bmap equ dword [ebp+40] ; b texture offset |
||
758 | .emap equ dword [ebp+44] ; e texture offset |
||
759 | .z_buff equ dword [ebp+48] |
||
760 | .z2 equ dword [ebp+52] ; -- |> z coords shifted |
||
761 | .z1 equ dword [ebp+56] ; -- shl CATMULL_SHIFT |
||
762 | |||
763 | |||
764 | .x2 equ dword [ebp-8] |
||
765 | .dbx equ dword [ebp-12] |
||
766 | .dby equ dword [ebp-16] |
||
767 | .dbyq equ qword [ebp-16] ; - new |
||
768 | .dex equ dword [ebp-20] |
||
769 | .dey equ dword [ebp-24] |
||
770 | .deyq equ qword [ebp-24] ; - new |
||
771 | .dz equ dword [ebp-28] |
||
772 | .cbx equ dword [ebp-32] |
||
773 | .cby equ dword [ebp-36] |
||
774 | .cbyq equ qword [ebp-36] ; - new |
||
775 | .cex equ dword [ebp-40] |
||
776 | .cey equ dword [ebp-44] |
||
777 | .ceyq equ qword [ebp-44] ; - new |
||
778 | .cz equ dword [ebp-48] |
||
779 | .czbuff equ dword [ebp-52] |
||
780 | |||
781 | |||
782 | |||
783 | |||
784 | or ecx,ecx |
||
785 | jl .bl_end |
||
786 | cmp ecx,SIZE_Y |
||
787 | jge .bl_end |
||
788 | |||
789 | |||
790 | jl @f |
||
791 | je .bl_end |
||
792 | |||
793 | |||
794 | if Ext=NON |
||
795 | mov edx,.bx1 |
||
796 | xchg edx,.bx2 |
||
797 | mov .bx1,edx |
||
798 | mov edx,.by1 |
||
799 | xchg edx,.by2 |
||
800 | mov .by1,edx |
||
801 | |||
802 | |||
803 | xchg edx,.ex2 |
||
804 | mov .ex1,edx |
||
805 | mov edx,.ey1 |
||
806 | xchg edx,.ey2 |
||
807 | mov .ey1,edx |
||
808 | else |
||
809 | movq mm0,.bx1q |
||
810 | movq mm1,.ex1q |
||
811 | movq mm2,.bx2q |
||
812 | movq mm3,.ex2q |
||
813 | movq .bx2q,mm0 |
||
814 | movq .ex2q,mm1 |
||
815 | movq .bx1q,mm2 |
||
816 | movq .ex1q,mm3 |
||
817 | end if |
||
818 | mov edx,.z1 |
||
819 | xchg edx,.z2 |
||
820 | mov .z1,edx |
||
821 | @@: |
||
822 | push eax ebx |
||
823 | ; push ebx ;store x1, x2 |
||
824 | |||
825 | |||
826 | jge .bl_end |
||
827 | cmp .x2,0 |
||
828 | jle .bl_end |
||
829 | |||
830 | |||
831 | sub ebx,.x1 |
||
832 | |||
833 | |||
834 | |||
835 | |||
836 | cvtsi2ss xmm3,ebx ;rcps |
||
837 | shufps xmm3,xmm3,0 |
||
838 | |||
839 | |||
840 | ; movq mm1,.bx2q |
||
841 | ; movq mm2,.ex1q |
||
842 | ; movq mm3,.ex2q |
||
843 | ; psubd mm1,mm0 |
||
844 | ; psubd mm3,mm2 |
||
845 | ; cvtpi2ps xmm1,mm1 |
||
846 | ; movlhps xmm1,xmm1 |
||
847 | ; cvtpi2ps xmm1,mm3 |
||
848 | |||
849 | |||
850 | movlhps xmm0,xmm0 |
||
851 | cvtpi2ps xmm0,.ex1q ;mm2 |
||
852 | cvtpi2ps xmm1,.bx2q ;mm1 |
||
853 | movlhps xmm1,xmm1 |
||
854 | cvtpi2ps xmm1,.ex2q ;mm3 |
||
855 | subps xmm1,xmm0 |
||
856 | |||
857 | |||
858 | |||
859 | |||
860 | cvtps2pi mm0,xmm1 ; mm0 -> 2 delta dwords |
||
861 | movhlps xmm1,xmm1 |
||
862 | cvtps2pi mm1,xmm1 |
||
863 | movq .deyq,mm0 |
||
864 | movq .dbyq,mm1 |
||
865 | |||
866 | |||
867 | |||
868 | |||
869 | sub eax,.bx1 |
||
870 | cdq |
||
871 | idiv ebx |
||
872 | push eax |
||
873 | |||
874 | |||
875 | sub eax,.by1 |
||
876 | cdq |
||
877 | idiv ebx |
||
878 | push eax |
||
879 | |||
880 | |||
881 | sub eax,.ex1 |
||
882 | cdq |
||
883 | idiv ebx |
||
884 | push eax |
||
885 | |||
886 | |||
887 | sub eax,.ey1 |
||
888 | cdq |
||
889 | idiv ebx |
||
890 | push eax |
||
891 | |||
892 | |||
893 | |||
894 | |||
895 | sub eax,.z1 |
||
896 | cdq |
||
897 | idiv ebx |
||
898 | push eax |
||
899 | |||
900 | |||
901 | jge @f ; CLIPPING ON FUNCTION |
||
902 | ; cutting triangle exceedes screen |
||
903 | mov ebx,.x1 |
||
904 | neg ebx |
||
905 | imul ebx ; eax = .dz * abs(.x1) |
||
906 | add .z1,eax |
||
907 | mov .x1,0 |
||
908 | |||
909 | |||
910 | imul ebx |
||
911 | add .bx1,eax |
||
912 | |||
913 | |||
914 | imul ebx |
||
915 | add .by1,eax |
||
916 | |||
917 | |||
918 | imul ebx |
||
919 | add .ex1,eax |
||
920 | |||
921 | |||
922 | imul ebx |
||
923 | add .ey1,eax |
||
924 | @@: |
||
925 | cmp .x2,SIZE_X |
||
926 | jl @f |
||
927 | mov .x2,SIZE_X |
||
928 | @@: |
||
929 | mov eax,SIZE_X ;calc memory begin in buffers |
||
930 | mov ebx,.y |
||
931 | mul ebx |
||
932 | mov ebx,.x1 |
||
933 | add eax,ebx |
||
934 | mov ebx,eax |
||
935 | lea eax,[eax*3] |
||
936 | add edi,eax ; edi - screen |
||
937 | mov esi,.z_buff ; z-buffer filled with dd variables |
||
938 | shl ebx,2 |
||
939 | add esi,ebx ; esi - Z buffer |
||
940 | |||
941 | |||
942 | sub ecx,.x1 |
||
943 | ; init current variables |
||
944 | push .bx1 .by1 .ex1 .ey1 .z1 esi |
||
945 | ; push .by1 |
||
946 | ; push .ex1 |
||
947 | ; push .ey1 |
||
948 | |||
949 | |||
950 | ; push esi |
||
951 | |||
952 | |||
953 | pxor mm0,mm0 |
||
954 | movq mm3,.ceyq |
||
955 | movq mm4,.cbyq |
||
956 | ; movq mm5,mm3 |
||
957 | ; movq mm6,mm4 |
||
958 | ; psrad mm5,ROUND |
||
959 | ; psrad mm6,ROUND |
||
960 | ; movq .ceyq,mm5 |
||
961 | ; movq .cbyq,mm6 |
||
962 | mov edx,.czbuff |
||
963 | else |
||
964 | cld |
||
965 | end if |
||
966 | .draw: |
||
967 | ; if TEX = SHIFTING ;bump drawing only in shifting mode |
||
968 | if Ext=NON |
||
969 | mov esi,.czbuff ; .czbuff current address in buffer |
||
970 | mov ebx,.cz ; .cz - cur z position |
||
971 | cmp ebx,dword[esi] |
||
972 | else |
||
973 | mov ebx,.cz |
||
974 | cmp ebx,dword[edx] |
||
975 | end if |
||
976 | jge .skip |
||
977 | |||
978 | |||
979 | mov eax,.cby |
||
980 | mov esi,.cbx |
||
981 | sar eax,ROUND |
||
982 | sar esi,ROUND |
||
983 | ;else |
||
984 | ; movd eax,mm6 |
||
985 | ; psrlq mm6,32 |
||
986 | ; movd esi,mm6 |
||
987 | ;end if |
||
988 | shl eax,TEX_SHIFT ;- |
||
989 | add esi,eax |
||
990 | lea esi,[esi*3] ;- ; esi - current b. texture addres |
||
991 | add esi,.bmap |
||
992 | |||
993 | |||
994 | mov ebx,.cex ;.cex - current env map X |
||
995 | mov eax,.cey ;.cey - current env map y |
||
996 | sar ebx,ROUND |
||
997 | sar eax,ROUND |
||
998 | ;else |
||
999 | ; movd eax,mm5 |
||
1000 | ; psrlq mm5,32 |
||
1001 | ; movd ebx,mm5 |
||
1002 | ;end if |
||
1003 | shl eax,TEX_SHIFT |
||
1004 | add ebx,eax |
||
1005 | lea ebx,[ebx*3] |
||
1006 | add ebx,.emap |
||
1007 | if Ext>=MMX |
||
1008 | movd mm1,[esi] |
||
1009 | movd mm2,[ebx] |
||
1010 | punpcklbw mm1,mm0 |
||
1011 | punpcklbw mm2,mm0 |
||
1012 | pmullw mm1,mm2 |
||
1013 | psrlw mm1,8 |
||
1014 | packuswb mm1,mm0 |
||
1015 | movd [edi],mm1 |
||
1016 | mov ebx,.cz |
||
1017 | mov dword[edx],ebx |
||
1018 | else |
||
1019 | cld ; esi - tex e. |
||
1020 | lodsb ; ebx - tex b. |
||
1021 | mov dl,[ebx] |
||
1022 | mul dl |
||
1023 | shr ax,8 |
||
1024 | stosb |
||
1025 | inc ebx |
||
1026 | lodsb |
||
1027 | mov dl,[ebx] |
||
1028 | mul dl |
||
1029 | shr ax,8 |
||
1030 | stosb |
||
1031 | inc ebx |
||
1032 | lodsb |
||
1033 | mov dl,[ebx] |
||
1034 | mul dl |
||
1035 | shr ax,8 |
||
1036 | stosb |
||
1037 | mov ebx,.cz |
||
1038 | mov esi,.czbuff |
||
1039 | mov dword[esi],ebx |
||
1040 | jmp .no_skip |
||
1041 | end if |
||
1042 | .skip: |
||
1043 | add edi,3 |
||
1044 | |||
1045 | |||
1046 | .no_skip: |
||
1047 | add .czbuff,4 |
||
1048 | mov eax,.dbx |
||
1049 | add .cbx,eax |
||
1050 | mov eax,.dby |
||
1051 | add .cby,eax |
||
1052 | mov eax,.dex |
||
1053 | add .cex,eax |
||
1054 | mov eax,.dey |
||
1055 | add .cey,eax |
||
1056 | else |
||
1057 | add edx,4 |
||
1058 | paddd mm3,.deyq |
||
1059 | paddd mm4,.dbyq |
||
1060 | ; movq mm5,mm3 |
||
1061 | ; movq mm6,mm4 |
||
1062 | ; psrad mm5,ROUND |
||
1063 | ; psrad mm6,ROUND |
||
1064 | movq .ceyq,mm3 |
||
1065 | movq .cbyq,mm4 |
||
1066 | end if |
||
1067 | mov eax,.dz |
||
1068 | add .cz,eax |
||
1069 | if Ext = NON |
||
1070 | dec ecx |
||
1071 | jnz .draw |
||
1072 | else |
||
1073 | loop .draw |
||
1074 | end if |
||
1075 | |||
1076 | |||
1077 | mov esp,ebp |
||
1078 | ret 56 |
||
1079 |