Rev 1245 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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1245 | hidnplayr | 1 | gouraud_triangle: |
2 | ;------------------in - eax - x1 shl 16 + y1 --------- |
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3 | ;---------------------- ebx - x2 shl 16 + y2 --------- |
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4 | ;---------------------- ecx - x3 shl 16 + y3 --------- |
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5 | ;---------------------- edi - pointer to screen buffer |
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6 | ;---------------------- stack : colors---------------- |
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7 | ;----------------- procedure don't save registers !!-- |
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8 | .col1r equ ebp+4 ; each color as word |
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9 | .col1g equ ebp+6 |
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10 | .col1b equ ebp+8 |
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11 | .col2r equ ebp+10 |
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12 | .col2g equ ebp+12 |
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13 | .col2b equ ebp+14 |
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14 | .col3r equ ebp+16 |
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15 | .col3g equ ebp+18 |
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16 | .col3b equ ebp+20 |
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17 | |||
18 | .x1 equ word[ebp-2] |
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19 | .y1 equ word[ebp-4] |
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20 | .x2 equ word[ebp-6] |
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21 | .y2 equ word[ebp-8] |
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22 | .x3 equ word[ebp-10] |
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23 | .y3 equ word[ebp-12] |
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24 | |||
1776 | yogev_ezra | 25 | .dx12 equ dword[ebp-16] |
26 | .dc12r equ dword[ebp-20] |
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27 | .dc12g equ [ebp-24] |
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28 | .dc12b equ dword[ebp-28] |
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29 | .dx13 equ dword[ebp-32] |
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30 | .dc13r equ dword[ebp-36] |
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31 | .dc13g equ [ebp-40] |
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32 | .dc13b equ dword[ebp-44] |
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33 | .dx23 equ dword[ebp-48] |
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34 | .dc23r equ dword[ebp-52] |
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35 | .dc23g equ [ebp-56] |
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36 | .dc23b equ dword[ebp-60] |
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1245 | hidnplayr | 37 | |
1776 | yogev_ezra | 38 | .c1r equ dword[ebp-64] |
39 | .c1g equ [ebp-68] |
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40 | .c1b equ dword[ebp-72] |
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41 | .c2r equ dword[ebp-76] |
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42 | .c2g equ [ebp-80] |
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43 | .c2b equ dword[ebp-84] |
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1245 | hidnplayr | 44 | |
45 | |||
46 | mov ebp,esp |
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47 | ; sub esp,72 |
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48 | |||
49 | .sort3: ; sort triangle coordinates... |
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50 | cmp ax,bx |
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51 | jle .sort1 |
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52 | xchg eax,ebx |
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53 | mov edx,dword[.col1r] |
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54 | xchg edx,dword[.col2r] |
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55 | mov dword[.col1r],edx |
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56 | mov dx,word[.col1b] |
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57 | xchg dx,word[.col2b] |
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58 | mov word[.col1b],dx |
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59 | .sort1: |
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60 | cmp bx,cx |
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61 | jle .sort2 |
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62 | xchg ebx,ecx |
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63 | mov edx,dword[.col2r] |
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64 | xchg edx,dword[.col3r] |
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65 | mov dword[.col2r],edx |
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66 | mov dx,word[.col2b] |
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67 | xchg dx,word[.col3b] |
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68 | mov word[.col2b],dx |
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69 | jmp .sort3 |
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70 | .sort2: |
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71 | push eax ;store triangle coordinates in user friendly variables |
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72 | push ebx |
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73 | push ecx |
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1776 | yogev_ezra | 74 | ; sub esp,72 ; set correctly value of esp |
1245 | hidnplayr | 75 | |
76 | mov edx,eax ; check only X triangle coordinate |
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77 | or edx,ebx |
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78 | or edx,ecx |
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79 | test edx,80000000h |
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80 | jne .gt_loop2_end |
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81 | shr eax,16 |
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82 | cmp ax,SIZE_X-1 |
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83 | jg .gt_loop2_end |
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84 | shr ebx,16 |
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85 | cmp bx,SIZE_X-1 |
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86 | jg .gt_loop2_end |
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87 | shr ecx,16 |
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88 | cmp cx,SIZE_X-1 |
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89 | jg .gt_loop2_end |
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90 | |||
91 | |||
92 | mov bx,.y2 ; calc deltas |
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93 | sub bx,.y1 |
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94 | jnz .gt_dx12_make |
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1776 | yogev_ezra | 95 | xor edx,edx |
96 | mov ecx,4 |
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97 | @@: |
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98 | push edx |
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99 | loop @b |
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100 | ; mov .dx12,0 |
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101 | ; mov .dc12r,0 |
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102 | ; mov .dc12g,0 |
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103 | ; mov .dc12b,0 |
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1245 | hidnplayr | 104 | jmp .gt_dx12_done |
105 | .gt_dx12_make: |
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106 | |||
107 | mov ax,.x2 |
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108 | sub ax,.x1 |
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109 | cwde |
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110 | movsx ebx,bx |
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111 | shl eax,ROUND |
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112 | cdq |
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113 | idiv ebx |
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1776 | yogev_ezra | 114 | ; mov .dx12,eax |
115 | push eax |
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1245 | hidnplayr | 116 | |
117 | mov ax,word[.col2r] |
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118 | sub ax,word[.col1r] |
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119 | cwde |
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120 | shl eax,ROUND |
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121 | cdq |
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122 | idiv ebx |
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1776 | yogev_ezra | 123 | ; mov .dc12r,eax |
124 | push eax |
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125 | |||
1245 | hidnplayr | 126 | mov ax,word[.col2g] |
127 | sub ax,word[.col1g] |
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128 | cwde |
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129 | shl eax,ROUND |
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130 | cdq |
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131 | idiv ebx |
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1776 | yogev_ezra | 132 | ; mov .dc12g,eax |
133 | push eax |
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134 | |||
1245 | hidnplayr | 135 | mov ax,word[.col2b] |
136 | sub ax,word[.col1b] |
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137 | cwde |
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138 | shl eax,ROUND |
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139 | cdq |
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140 | idiv ebx |
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1776 | yogev_ezra | 141 | ; mov .dc12b,eax |
142 | push eax |
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1245 | hidnplayr | 143 | .gt_dx12_done: |
144 | mov bx,.y3 |
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145 | sub bx,.y1 |
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146 | jnz .gt_dx13_make |
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1776 | yogev_ezra | 147 | xor edx,edx |
148 | mov ecx,4 |
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149 | @@: |
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150 | push edx |
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151 | loop @b |
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152 | ; mov .dx13,0 |
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153 | ; mov .dc13r,0 |
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154 | ; mov .dc13g,0 |
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155 | ; mov .dc13b,0 |
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1245 | hidnplayr | 156 | jmp .gt_dx13_done |
157 | .gt_dx13_make: |
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158 | mov ax,.x3 |
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159 | sub ax,.x1 |
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160 | cwde |
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161 | movsx ebx,bx |
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162 | shl eax,ROUND |
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163 | cdq |
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164 | idiv ebx |
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1776 | yogev_ezra | 165 | ; mov .dx13,eax |
166 | push eax |
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1245 | hidnplayr | 167 | |
168 | mov ax,word[.col3r] |
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169 | sub ax,word[.col1r] |
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170 | cwde |
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171 | shl eax,ROUND |
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172 | cdq |
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173 | idiv ebx |
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1776 | yogev_ezra | 174 | ; mov .dc13r,eax |
175 | push eax |
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176 | |||
1245 | hidnplayr | 177 | mov ax,word[.col3g] |
178 | sub ax,word[.col1g] |
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179 | cwde |
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180 | shl eax,ROUND |
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181 | cdq |
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182 | idiv ebx |
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1776 | yogev_ezra | 183 | ; mov .dc13g,eax |
184 | push eax |
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1245 | hidnplayr | 185 | mov ax,word[.col3b] |
186 | sub ax,word[.col1b] |
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187 | cwde |
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188 | shl eax,ROUND |
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189 | cdq |
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190 | idiv ebx |
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1776 | yogev_ezra | 191 | ; mov .dc13b,eax |
192 | push eax |
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1245 | hidnplayr | 193 | .gt_dx13_done: |
194 | mov bx,.y3 |
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195 | sub bx,.y2 |
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196 | jnz .gt_dx23_make |
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1776 | yogev_ezra | 197 | xor edx,edx |
198 | mov ecx,4 |
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199 | @@: |
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200 | push edx |
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201 | loop @b |
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202 | ; mov .dx23,0 |
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203 | ; mov .dc23r,0 |
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204 | ; mov .dc23g,0 |
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205 | ; mov .dc23b,0 |
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1245 | hidnplayr | 206 | jmp .gt_dx23_done |
207 | .gt_dx23_make: |
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208 | mov ax,.x3 |
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209 | sub ax,.x2 |
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210 | cwde |
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211 | movsx ebx,bx |
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212 | shl eax,ROUND |
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213 | cdq |
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214 | idiv ebx |
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1776 | yogev_ezra | 215 | ; mov .dx23,eax |
216 | push eax |
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1245 | hidnplayr | 217 | |
218 | mov ax,word[.col3r] |
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219 | sub ax,word[.col2r] |
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220 | cwde |
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221 | shl eax,ROUND |
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222 | cdq |
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223 | idiv ebx |
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1776 | yogev_ezra | 224 | ; mov .dc23r,eax |
225 | push eax |
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226 | |||
227 | |||
1245 | hidnplayr | 228 | mov ax,word[.col3g] |
229 | sub ax,word[.col2g] |
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230 | cwde |
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231 | shl eax,ROUND |
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232 | cdq |
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233 | idiv ebx |
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1776 | yogev_ezra | 234 | ; mov .dc23g,eax |
235 | push eax |
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236 | |||
1245 | hidnplayr | 237 | mov ax,word[.col3b] |
238 | sub ax,word[.col2b] |
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239 | cwde |
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240 | shl eax,ROUND |
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241 | cdq |
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242 | idiv ebx |
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1776 | yogev_ezra | 243 | ; mov .dc23b,eax |
244 | push eax |
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245 | |||
1245 | hidnplayr | 246 | .gt_dx23_done: |
1776 | yogev_ezra | 247 | sub esp,24 |
1245 | hidnplayr | 248 | movsx eax,.x1 |
249 | shl eax,ROUND |
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250 | mov ebx,eax |
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251 | movsx edx,word[.col1r] |
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252 | shl edx,ROUND |
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253 | mov .c1r,edx |
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254 | mov .c2r,edx |
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255 | movsx edx,word[.col1g] |
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256 | shl edx,ROUND |
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257 | mov .c1g,edx |
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258 | mov .c2g,edx |
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259 | movsx edx,word[.col1b] |
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260 | shl edx,ROUND |
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261 | mov .c1b,edx |
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262 | mov .c2b,edx |
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263 | mov cx,.y1 |
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264 | cmp cx,.y2 |
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265 | jge .gt_loop1_end |
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266 | .gt_loop1: |
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267 | push eax ; eax - cur x1 |
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268 | push ebx ; ebx - cur x2 |
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269 | push cx ; cx - cur y |
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270 | push edi |
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271 | push ebp |
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272 | |||
1776 | yogev_ezra | 273 | sar ebx,ROUND |
274 | push bx |
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1245 | hidnplayr | 275 | mov edx,.c2r ; c2r,c2g,c2b,c1r,c1g,c1b - current colors |
276 | sar edx,ROUND |
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277 | push dx |
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278 | mov edx,.c2g |
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279 | sar edx,ROUND |
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280 | push dx |
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281 | mov edx,.c2b |
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282 | sar edx,ROUND |
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283 | push dx |
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1776 | yogev_ezra | 284 | |
285 | sar eax,ROUND |
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286 | push ax |
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1245 | hidnplayr | 287 | mov edx,.c1r |
288 | sar edx,ROUND |
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289 | push dx |
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290 | mov edx,.c1g |
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291 | sar edx,ROUND |
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292 | push dx |
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293 | mov edx,.c1b |
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294 | sar edx,ROUND |
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295 | push dx |
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296 | push cx |
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297 | call gouraud_line |
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298 | |||
299 | pop ebp |
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300 | pop edi |
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301 | pop cx |
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302 | pop ebx |
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303 | pop eax |
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304 | |||
1776 | yogev_ezra | 305 | if Ext >= MMX |
306 | movq mm0,.c1g |
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307 | paddd mm0,.dc13g |
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308 | movq .c1g,mm0 |
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309 | else |
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1245 | hidnplayr | 310 | mov edx,.dc13r |
311 | add .c1r,edx |
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312 | mov edx,.dc13g |
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313 | add .c1g,edx |
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1776 | yogev_ezra | 314 | end if |
1245 | hidnplayr | 315 | mov edx,.dc13b |
316 | add .c1b,edx |
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1776 | yogev_ezra | 317 | if Ext >= MMX |
318 | movq mm0,.c2g |
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319 | paddd mm0,.dc12g |
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320 | movq .c2g,mm0 |
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321 | else |
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1245 | hidnplayr | 322 | mov edx,.dc12r |
323 | add .c2r,edx |
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324 | mov edx,.dc12g |
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325 | add .c2g,edx |
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1776 | yogev_ezra | 326 | end if |
1245 | hidnplayr | 327 | mov edx,.dc12b |
328 | add .c2b,edx |
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329 | |||
330 | add eax,.dx13 |
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331 | add ebx,.dx12 |
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332 | inc cx |
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333 | cmp cx,.y2 |
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334 | jl .gt_loop1 |
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335 | .gt_loop1_end: |
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336 | |||
337 | mov cx,.y2 |
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338 | cmp cx,.y3 |
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339 | jge .gt_loop2_end |
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340 | movsx ebx,.x2 |
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341 | shl ebx,ROUND |
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342 | |||
343 | movsx edx,word[.col2r] |
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344 | shl edx,ROUND |
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345 | mov .c2r,edx |
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346 | movsx edx,word[.col2g] |
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347 | shl edx,ROUND |
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348 | mov .c2g,edx |
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349 | movsx edx,word[.col2b] |
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350 | shl edx,ROUND |
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351 | mov .c2b,edx |
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352 | .gt_loop2: |
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353 | push eax ; eax - cur x1 |
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354 | push ebx ; ebx - cur x2 |
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355 | push cx |
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356 | push edi |
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357 | push ebp |
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358 | |||
1776 | yogev_ezra | 359 | sar ebx,ROUND |
360 | push bx |
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1245 | hidnplayr | 361 | mov edx,.c2r |
362 | sar edx,ROUND |
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363 | push dx |
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364 | mov edx,.c2g |
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365 | sar edx,ROUND |
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366 | push dx |
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367 | mov edx,.c2b |
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368 | sar edx,ROUND |
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369 | push dx |
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1776 | yogev_ezra | 370 | |
371 | sar eax,ROUND |
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372 | push ax |
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1245 | hidnplayr | 373 | mov edx,.c1r |
374 | sar edx,ROUND |
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375 | push dx |
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376 | mov edx,.c1g |
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377 | sar edx,ROUND |
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378 | push dx |
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379 | mov edx,.c1b |
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380 | sar edx,ROUND |
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381 | push dx |
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382 | push cx |
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383 | call gouraud_line |
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384 | |||
385 | pop ebp |
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386 | pop edi |
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387 | pop cx |
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388 | pop ebx |
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389 | pop eax |
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390 | |||
1776 | yogev_ezra | 391 | if Ext >= MMX |
392 | movq mm0,.c1g |
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393 | paddd mm0,.dc13g |
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394 | movq .c1g,mm0 |
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395 | else |
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1245 | hidnplayr | 396 | mov edx,.dc13r |
397 | add .c1r,edx |
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398 | mov edx,.dc13g |
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399 | add .c1g,edx |
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1776 | yogev_ezra | 400 | end if |
1245 | hidnplayr | 401 | mov edx,.dc13b |
402 | add .c1b,edx |
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1776 | yogev_ezra | 403 | if Ext >= MMX |
404 | movq mm0,.c2g |
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405 | paddd mm0,.dc23g |
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406 | movq .c2g,mm0 |
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407 | else |
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1245 | hidnplayr | 408 | mov edx,.dc23r |
409 | add .c2r,edx |
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410 | mov edx,.dc23g |
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411 | add .c2g,edx |
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1776 | yogev_ezra | 412 | end if |
1245 | hidnplayr | 413 | mov edx,.dc23b |
414 | add .c2b,edx |
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415 | |||
416 | add eax,.dx13 |
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417 | add ebx,.dx23 |
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418 | inc cx |
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419 | cmp cx,.y3 |
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420 | jl .gt_loop2 |
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421 | .gt_loop2_end: |
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422 | |||
423 | ; add esp,84 |
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424 | mov esp,ebp |
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425 | ret 18 |
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426 | gouraud_line: |
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427 | ;-------------in - edi - pointer to screen buffer |
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428 | ;----------------- stack - another parameters |
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1776 | yogev_ezra | 429 | .y equ word [ebp+4] |
430 | .col1b equ ebp+6 |
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431 | .col1g equ ebp+8 |
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432 | .col1r equ ebp+10 |
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433 | .x1 equ [ebp+12] |
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434 | .col2b equ ebp+14 |
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435 | .col2g equ ebp+16 |
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436 | .col2r equ ebp+18 |
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437 | .x2 equ [ebp+20] |
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1245 | hidnplayr | 438 | .dc_r equ dword[ebp-4] |
439 | .dc_g equ dword[ebp-8] |
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440 | .dc_b equ dword[ebp-12] |
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441 | mov ebp,esp |
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442 | |||
443 | mov ax,.y |
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444 | or ax,ax |
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445 | jl .gl_quit |
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446 | cmp ax,SIZE_Y-1 |
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447 | jg .gl_quit |
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448 | |||
449 | mov ax,.x1 |
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450 | cmp ax,.x2 |
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451 | je .gl_quit |
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452 | jl .gl_ok |
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453 | |||
1776 | yogev_ezra | 454 | if Ext >= MMX |
455 | movq mm0,[.col1b] |
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456 | movq mm1,[.col2b] |
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457 | movq [.col1b],mm1 |
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458 | movq [.col2b],mm0 |
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459 | else |
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460 | mov eax,[.col1b] |
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461 | xchg eax,[.col2b] |
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462 | mov [.col1b],eax |
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463 | mov eax,[.col1r] |
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464 | xchg eax,[.col2r] |
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465 | mov [.col1r],eax |
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466 | end if |
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1245 | hidnplayr | 467 | .gl_ok: |
468 | ; cmp .x1,SIZE_X-1 ;check |
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469 | ; jg .gl_quit |
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470 | ; cmp .x2,SIZE_X-1 |
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471 | ; jl @f |
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472 | ; mov .x2,SIZE_X-1 |
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473 | ; @@: |
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474 | ; cmp .x1,0 |
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475 | ; jg @f |
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476 | ; mov .x1,0 |
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477 | ; @@: |
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478 | ; cmp .x2,0 |
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479 | ; jl .gl_quit |
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480 | |||
481 | movsx ecx,.y |
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482 | mov eax,SIZE_X*3 |
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483 | mul ecx |
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1776 | yogev_ezra | 484 | movsx ebx,word .x1 |
1245 | hidnplayr | 485 | lea ecx,[ebx*2+eax] |
486 | add edi,ecx |
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487 | add edi,ebx |
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488 | |||
489 | mov ax,word[.col2r] |
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490 | sub ax,word[.col1r] |
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491 | cwde |
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492 | shl eax,ROUND |
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493 | cdq |
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494 | mov cx,.x2 |
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495 | sub cx,.x1 |
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496 | movsx ecx,cx |
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497 | idiv ecx |
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498 | ;mov .dc_r,eax ;first delta |
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499 | push eax |
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500 | |||
501 | mov ax,word[.col2g] |
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502 | sub ax,word[.col1g] |
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503 | cwde |
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504 | shl eax,ROUND |
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505 | cdq |
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506 | idiv ecx |
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507 | ;mov .dc_g,eax |
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508 | push eax |
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509 | |||
510 | mov ax,word[.col2b] |
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511 | sub ax,word[.col1b] |
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512 | cwde |
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513 | shl eax,ROUND |
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514 | cdq |
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515 | idiv ecx |
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516 | ; mov .dc_b,eax |
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517 | push eax |
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518 | |||
519 | movsx ebx,word[.col1r] |
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520 | shl ebx,ROUND |
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521 | movsx edx,word[.col1g] |
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522 | shl edx,ROUND |
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523 | movsx esi,word[.col1b] |
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524 | shl esi,ROUND |
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525 | .gl_draw: |
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526 | mov eax,ebx |
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527 | sar eax,ROUND |
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528 | stosb |
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529 | mov eax,edx |
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530 | sar eax,ROUND |
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531 | stosb |
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532 | mov eax,esi |
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533 | sar eax,ROUND |
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534 | stosb |
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535 | add ebx,.dc_r |
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536 | add edx,.dc_g |
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537 | add esi,.dc_b |
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538 | loop .gl_draw |
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539 | .gl_quit: |
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540 | ; add esp,12 |
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541 | mov esp,ebp |
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1776 | yogev_ezra | 542 | ret 18 |
543 | if 0 |
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544 | gouraud_line_SSE: ; new |
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545 | ;-------------in - edi - pointer to screen buffer |
||
546 | ;----------------- stack - another parameters |
||
547 | .y equ word [ebp+4] |
||
548 | .col1b equ ebp+6 |
||
549 | .col1g equ ebp+8 |
||
550 | .col1r equ ebp+10 |
||
551 | .x1 equ [ebp+12] |
||
552 | .col2b equ ebp+14 |
||
553 | .col2g equ ebp+16 |
||
554 | .col2r equ ebp+18 |
||
555 | .x2 equ [ebp+20] |
||
556 | .dc_r equ dword[ebp-4] |
||
557 | .dc_g equ dword[ebp-8] |
||
558 | .dc_b equ dword[ebp-12] |
||
559 | .lenght equ [ebp-16] |
||
560 | .factor equ [ebp-24] ;new |
||
561 | mov ebp,esp |
||
562 | |||
563 | mov ax,.y |
||
564 | or ax,ax |
||
565 | jl .gl_quit |
||
566 | cmp ax,SIZE_Y-1 |
||
567 | jg .gl_quit |
||
568 | |||
569 | mov ax,.x1 |
||
570 | cmp ax,.x2 |
||
571 | je .gl_quit |
||
572 | jl .gl_ok |
||
573 | |||
574 | if Ext >= MMX |
||
575 | movq mm0,[.col1b] |
||
576 | movq mm1,[.col2b] |
||
577 | movq [.col1b],mm1 |
||
578 | movq [.col2b],mm0 |
||
579 | else |
||
580 | mov eax,[.col1b] |
||
581 | xchg eax,[.col2b] |
||
582 | mov [.col1b],eax |
||
583 | mov eax,[.col1r] |
||
584 | xchg eax,[.col2r] |
||
585 | mov [.col1r],eax |
||
586 | end if |
||
587 | .gl_ok: |
||
588 | ; cmp .x1,SIZE_X-1 ;check |
||
589 | ; jg .gl_quit |
||
590 | ; cmp .x2,SIZE_X-1 |
||
591 | ; jl @f |
||
592 | ; mov .x2,SIZE_X-1 |
||
593 | ; @@: |
||
594 | ; cmp .x1,0 |
||
595 | ; jg @f |
||
596 | ; mov .x1,0 |
||
597 | ; @@: |
||
598 | ; cmp .x2,0 |
||
599 | ; jl .gl_quit |
||
600 | |||
601 | movsx ecx,.y |
||
602 | mov eax,SIZE_X*3 |
||
603 | mul ecx |
||
604 | movsx ebx,word .x1 |
||
605 | lea ecx,[ebx*2+eax] |
||
606 | add edi,ecx |
||
607 | add edi,ebx |
||
608 | |||
609 | mov ax,word[.col2r] |
||
610 | sub ax,word[.col1r] |
||
611 | cwde |
||
612 | shl eax,ROUND |
||
613 | cdq |
||
614 | mov cx,.x2 |
||
615 | sub cx,.x1 |
||
616 | movsx ecx,cx |
||
617 | idiv ecx |
||
618 | ;mov .dc_r,eax ;first delta |
||
619 | push eax |
||
620 | |||
621 | mov ax,word[.col2g] |
||
622 | sub ax,word[.col1g] |
||
623 | cwde |
||
624 | shl eax,ROUND |
||
625 | cdq |
||
626 | idiv ecx |
||
627 | ;mov .dc_g,eax |
||
628 | push eax |
||
629 | |||
630 | mov ax,word[.col2b] |
||
631 | sub ax,word[.col1b] |
||
632 | cwde |
||
633 | shl eax,ROUND |
||
634 | cdq |
||
635 | idiv ecx |
||
636 | ; mov .dc_b,eax |
||
637 | push eax |
||
638 | |||
639 | movsx ebx,word[.col1r] |
||
640 | shl ebx,ROUND |
||
641 | movsx edx,word[.col1g] |
||
642 | shl edx,ROUND |
||
643 | movsx esi,word[.col1b] |
||
644 | shl esi,ROUND |
||
645 | |||
646 | push ecx ; store line lenght |
||
647 | movd mm3,.dc_r |
||
648 | psrlq mm3,16 ; load dr to lowest word of mm3 |
||
649 | pxor mm2,mm2 ; clear mm2 |
||
650 | movd mm4,.dc_g |
||
651 | punpcklwd mm3,mm3 ; unpack dr to lower 2 words in in mm3 |
||
652 | psrlq mm4,16 ; load dg to lowest word of mm4 |
||
653 | movd mm5,.dc_b |
||
654 | psrlq mm5,16 ; load db to lowest word of mm5 |
||
655 | punpcklwd mm4,mm4 ; unpack dg to lower 2 words in in mm3 |
||
656 | lea ecx,[factor] |
||
657 | punpckldq mm3,mm3 |
||
658 | punpcklwd mm5,mm5 ; unpack db to lower 2 words in in mm5 |
||
659 | movq mm6,[.col1b] |
||
660 | xor eax,eax |
||
661 | pinsrw mm6,eax,3 ; clear the highest word in mm6 |
||
662 | mov eax,010000h |
||
663 | punpckldq mm4,mm4 ; unpack dg to 4 words in mm4 |
||
664 | mov [ecx],eax |
||
665 | mov eax,030002h |
||
666 | punpckldq mm5,mm5 ; unpack db to 4 words in mm5 |
||
667 | movq mm7,mm6 ; load r1r1,g1g1,b1b1 to the first three |
||
668 | ; words of mm7 |
||
669 | pxor mm1,mm1 ; clear mm1 |
||
670 | |||
671 | |||
672 | .gl_draw: |
||
673 | mov eax,ebx |
||
674 | sar eax,ROUND |
||
675 | stosb |
||
676 | mov eax,edx |
||
677 | sar eax,ROUND |
||
678 | stosb |
||
679 | mov eax,esi |
||
680 | sar eax,ROUND |
||
681 | stosb |
||
682 | add ebx,.dc_r |
||
683 | add edx,.dc_g |
||
684 | add esi,.dc_b |
||
685 | loop .gl_draw |
||
686 | .gl_quit: |
||
687 | ; add esp,12 |
||
688 | mov esp,ebp |
||
689 | ret 18 |
||
690 | end if |