Rev 946 | Rev 1962 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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750 | victor | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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714 | Lrz | 7 | |
750 | victor | 8 | $Revision: 947 $ |
9 | |||
714 | Lrz | 10 | struc VBE_VGAInfo { |
11 | .VESASignature dd ? ; char |
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12 | .VESAVersion dw ? ; short |
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13 | .OemStringPtr dd ? ; char * |
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14 | .Capabilities dd ? ; ulong |
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15 | .VideoModePtr dd ? ; ulong |
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16 | .TotalMemory dw ? ; short |
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17 | ; VBE 2.0+ |
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18 | .OemSoftwareRev db ? ; short |
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19 | .OemVendorNamePtr dw ? ; char * |
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20 | .OemProductNamePtr dw ? ; char * |
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21 | .OemProductRevPtr dw ? ; char * |
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22 | .reserved rb 222 ; char |
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23 | .OemData rb 256 ; char |
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24 | } |
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25 | |||
26 | struc VBE_ModeInfo { |
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27 | .ModeAttributes dw ? ; short |
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28 | .WinAAttributes db ? ; char |
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29 | .WinBAttributes db ? ; char |
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30 | .WinGranularity dw ? ; short |
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31 | .WinSize dw ? ; short |
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32 | .WinASegment dw ? ; ushort |
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33 | .WinBSegment dw ? ; ushort |
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34 | .WinFuncPtr dd ? ; void * |
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35 | .BytesPerScanLine dw ? ; short |
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36 | .XRes dw ? ; short |
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37 | .YRes dw ? ; short |
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38 | .XCharSize db ? ; char |
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39 | .YCharSize db ? ; char |
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40 | .NumberOfPlanes db ? ; char |
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41 | .BitsPerPixel db ? ; char |
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42 | .NumberOfBanks db ? ; char |
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43 | .MemoryModel db ? ; char |
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44 | .BankSize db ? ; char |
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45 | .NumberOfImagePages db ? ; char |
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46 | .res1 db ? ; char |
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47 | .RedMaskSize db ? ; char |
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48 | .RedFieldPosition db ? ; char |
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49 | .GreenMaskSize db ? ; char |
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50 | .GreenFieldPosition db ? ; char |
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51 | .BlueMaskSize db ? ; char |
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52 | .BlueFieldPosition db ? ; char |
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53 | .RsvedMaskSize db ? ; char |
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54 | .RsvedFieldPosition db ? ; char |
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55 | .DirectColorModeInfo db ? ; char ; MISSED IN THIS TUTORIAL!! SEE ABOVE |
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56 | ; VBE 2.0+ |
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57 | .PhysBasePtr dd ? ; ulong |
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58 | .OffScreenMemOffset dd ? ; ulong |
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59 | .OffScreenMemSize dw ? ; short |
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60 | ; VBE 3.0+ |
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61 | .LinbytesPerScanLine dw ? ; short |
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62 | .BankNumberOfImagePages db ? ; char |
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63 | .LinNumberOfImagePages db ? ; char |
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64 | .LinRedMaskSize db ? ; char |
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65 | .LinRedFieldPosition db ? ; char |
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66 | .LingreenMaskSize db ? ; char |
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67 | .LinGreenFieldPosition db ? ; char |
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68 | .LinBlueMaskSize db ? ; char |
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69 | .LinBlueFieldPosition db ? ; char |
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70 | .LinRsvdMaskSize db ? ; char |
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71 | .LinRsvdFieldPosition db ? ; char |
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72 | .MaxPixelClock dd ? ; ulong |
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73 | .res2 rb 190 ; char |
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74 | } |
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75 | |||
76 | virtual at $A000 |
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77 | vi VBE_VGAInfo |
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78 | mi VBE_ModeInfo |
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79 | modes_table: |
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80 | end virtual |
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81 | cursor_pos dw 0 ;âðåìåííîå õðàíåíèå êóðñîðà. |
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82 | home_cursor dw 0 ;current shows rows a table |
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83 | end_cursor dw 0 ;end of position current shows rows a table |
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834 | diamond | 84 | scroll_start dw 0 ;start position of scroll bar |
85 | scroll_end dw 0 ;end position of scroll bar |
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714 | Lrz | 86 | long_v_table equ 9 ;long of visible video table |
731 | diamond | 87 | size_of_step equ 10 |
88 | scroll_area_size equ (long_v_table-2) |
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714 | Lrz | 89 | int2str: |
90 | dec bl |
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91 | jz @f |
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92 | xor edx,edx |
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93 | div ecx |
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94 | push edx |
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95 | call int2str |
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96 | pop eax |
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97 | @@: or al,0x30 |
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98 | mov [ds:di],al |
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99 | inc di |
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100 | ret |
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101 | |||
102 | int2strnz: |
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103 | cmp eax,ecx |
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104 | jb @f |
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105 | xor edx,edx |
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106 | div ecx |
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107 | push edx |
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108 | call int2strnz |
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109 | pop eax |
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110 | @@: or al,0x30 |
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111 | mov [es:di],al |
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112 | inc di |
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113 | ret |
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946 | lrz | 114 | |
714 | Lrz | 115 | ;------------------------------------------------------- |
116 | ;Write message about incorrect v_mode and write message about jmp on swith v_mode |
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117 | v_mode_error: |
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118 | _setcursor 19,2 |
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119 | mov si, fatalsel |
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120 | call printplain |
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121 | _setcursor 20,2 |
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122 | mov si,pres_key |
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123 | call printplain |
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124 | xor eax,eax |
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125 | int 16h |
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126 | jmp cfgmanager.d |
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127 | ;------------------------------------------------------- |
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128 | ; |
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129 | |||
130 | |||
131 | |||
132 | ;------------------------------------------------------- |
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133 | print_vesa_info: |
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134 | _setcursor 5,2 |
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135 | |||
136 | mov [es:vi.VESASignature],'VBE2' |
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137 | mov ax,0x4F00 |
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138 | mov di,vi ;0xa000 |
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139 | int 0x10 |
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140 | or ah,ah |
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141 | jz @f |
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142 | mov [es:vi.VESASignature],'VESA' |
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143 | mov ax,$4F00 |
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144 | mov di,vi |
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145 | int 0x10 |
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146 | or ah,ah |
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147 | jnz .exit |
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148 | @@: |
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149 | cmp [es:vi.VESASignature],'VESA' |
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150 | jne .exit |
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151 | cmp [es:vi.VESAVersion],0x0100 |
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152 | jb .exit |
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153 | jmp .vesaok2 |
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154 | |||
155 | .exit: |
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156 | mov si,novesa |
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157 | call printplain |
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158 | ret |
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159 | |||
160 | .vesaok2: |
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161 | mov ax,[es:vi.VESAVersion] |
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162 | add ax,'00' |
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163 | |||
164 | mov [s_vesa.ver], ah |
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165 | mov [s_vesa.ver+2], al |
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166 | mov si,s_vesa |
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167 | call printplain |
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168 | |||
169 | _setcursor 4,2 |
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170 | mov si,word[es:vi.OemStringPtr] |
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171 | mov di,si |
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172 | |||
173 | push ds |
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174 | mov ds,word[es:vi.OemStringPtr+2] |
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175 | call printplain |
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176 | pop ds |
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177 | |||
178 | ret |
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179 | ;----------------------------------------------------------------------------- |
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180 | |||
181 | calc_vmodes_table: |
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182 | pushad |
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183 | |||
184 | ; push 0 |
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185 | ; pop es |
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186 | |||
730 | diamond | 187 | lfs si, [es:vi.VideoModePtr] |
714 | Lrz | 188 | |
189 | mov bx,modes_table |
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190 | ;save no vesa mode of work 320x200, EGA/CGA 256 梥⮢ and 640x480, VGA 16 梥⮢ |
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191 | mov word [es:bx],640 |
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192 | mov word [es:bx+2],480 |
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193 | mov word [es:bx+6],0x13 |
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194 | |||
195 | mov word [es:bx+10],640 |
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196 | mov word [es:bx+12],480 |
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197 | mov word [es:bx+16],0x12 |
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198 | add bx,20 |
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199 | .next_mode: |
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200 | mov cx,word [fs:si] ; mode number |
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201 | cmp cx,-1 |
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202 | je .modes_ok.2 |
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203 | |||
204 | mov ax,0x4F01 |
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205 | mov di,mi |
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206 | int 0x10 |
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207 | |||
208 | or ah,ah |
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209 | jnz .modes_ok.2;vesa_info.exit |
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210 | |||
211 | test [es:mi.ModeAttributes],00000001b ;videomode support ? |
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212 | jz @f |
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213 | test [es:mi.ModeAttributes],00010000b ;picture ? |
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214 | jz @f |
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215 | test [es:mi.ModeAttributes],10000000b ;LFB ? |
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216 | jz @f |
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217 | |||
947 | lrz | 218 | cmp [es:mi.BitsPerPixel], 24 ;It show only videomodes to have support 24 and 32 bpp |
219 | jb @f |
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730 | diamond | 220 | |
947 | lrz | 221 | ; cmp [es:mi.BitsPerPixel],16 |
222 | ; jne .l0 |
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223 | ; cmp [es:mi.GreenMaskSize],5 |
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224 | ; jne .l0 |
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225 | ; mov [es:mi.BitsPerPixel],15 |
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714 | Lrz | 226 | |
227 | |||
947 | lrz | 228 | .l0: |
714 | Lrz | 229 | cmp [es:mi.XRes],640 |
230 | jb @f |
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231 | cmp [es:mi.YRes],480 |
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232 | jb @f |
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233 | ; cmp [es:mi.BitsPerPixel],8 |
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234 | ; jb @f |
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235 | |||
236 | mov ax,[es:mi.XRes] |
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237 | mov [es:bx+0],ax ; +0[2] : resolution X |
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238 | mov ax,[es:mi.YRes] |
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239 | mov [es:bx+2],ax ; +2[2] : resolution Y |
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240 | mov ax,[es:mi.ModeAttributes] |
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241 | mov [es:bx+4],ax ; +4[2] : attributes |
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242 | |||
243 | cmp [s_vesa.ver],'2' |
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244 | jb .lp1 |
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245 | |||
246 | or cx,0x4000 ; use LFB |
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947 | lrz | 247 | .lp1: mov [es:bx+6],cx ; +6 : mode number |
714 | Lrz | 248 | movzx ax,byte [es:mi.BitsPerPixel] |
249 | mov word [es:bx+8],ax ; +8 : bits per pixel |
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946 | lrz | 250 | add bx,size_of_step ; size of record |
714 | Lrz | 251 | |
252 | @@: |
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253 | add si,2 |
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254 | jmp .next_mode |
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255 | |||
256 | .modes_ok.2: |
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257 | |||
258 | mov word[es:bx],-1 ;end video table |
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259 | mov word[end_cursor],bx ;save end cursor position |
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260 | ;;;;;;;;;;;;;;;;;; |
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261 | ;Sort array |
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262 | ; mov si,modes_table |
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263 | ;.new_mode: |
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264 | ; mov ax,word [es:si] |
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265 | ; cmp ax,-1 |
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266 | ; je .exxit |
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267 | ; add ax,word [es:si+2] |
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268 | ; add ax,word [es:si+8] |
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269 | ; mov bp,si |
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270 | ;.again: |
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271 | ; add bp,12 |
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272 | ; mov bx,word [es:bp] |
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273 | ; cmp bx,-1 |
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274 | ; je .exit |
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275 | ; add bx,word [es:bp+2] |
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276 | ; add bx,word [es:bp+8] |
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277 | ; |
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278 | ; cmp ax,bx |
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279 | ; ja .loops |
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280 | ; jmp .again |
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281 | ;.loops: |
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282 | ; push dword [es:si] |
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283 | ; push dword [es:si+4] |
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284 | ; push dword [es:si+8] |
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285 | ; push dword [es:bp] |
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286 | ; push dword [es:bp+4] |
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287 | ; push dword [es:bp+8] |
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288 | ; |
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289 | ; pop dword [es:si+8] |
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290 | ; pop dword [es:si+4] |
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291 | ; pop dword [es:si] |
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292 | ; pop dword [es:bp+8] |
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293 | ; pop dword [es:bp+4] |
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294 | ; pop dword [es:bp] |
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295 | ; jmp .new_mode |
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296 | ; |
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297 | ;.exit: add si,12 |
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298 | ; jmp .new_mode |
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299 | ;.exxit: |
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300 | popad |
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301 | ret |
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302 | |||
303 | ;----------------------------------------------------------------------------- |
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304 | |||
305 | draw_current_vmode: |
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306 | push 0 |
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307 | pop es |
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308 | |||
309 | mov si,word [cursor_pos] |
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310 | |||
311 | cmp word [es:si+6],0x12 |
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312 | je .no_vesa_0x12 |
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313 | |||
314 | cmp word [es:si+6],0x13 |
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315 | je .no_vesa_0x13 |
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316 | |||
317 | mov di,loader_block_error |
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318 | movzx eax,word[es:si+0] |
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319 | mov ecx,10 |
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320 | call int2strnz |
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321 | mov byte[es:di],'x' |
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322 | inc di |
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323 | movzx eax,word[es:si+2] |
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324 | call int2strnz |
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325 | mov byte[es:di],'x' |
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326 | inc di |
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327 | movzx eax,word[es:si+8] |
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328 | call int2strnz |
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329 | mov dword[es:di],0x00000d0a |
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330 | mov si,loader_block_error |
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331 | push ds |
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332 | push es |
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333 | pop ds |
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334 | call printplain |
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335 | pop ds |
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336 | ret |
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337 | .no_vesa_0x13: |
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338 | mov si,mode0 |
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339 | jmp .print |
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340 | .no_vesa_0x12: |
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341 | mov si,mode9 |
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342 | .print: |
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343 | call printplain |
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344 | ret |
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345 | ;----------------------------------------------------------------------------- |
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346 | check_first_parm: |
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749 | Lrz | 347 | mov si,word [preboot_graph] |
348 | test si,si |
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714 | Lrz | 349 | jnz .no_zero ;if no zero |
350 | .zerro: |
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351 | ; mov ax,modes_table |
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352 | ; mov word [cursor_pos],ax |
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353 | ; mov word [home_cursor],ax |
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354 | ; mov word [preboot_graph],ax |
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355 | ;SET default video of mode first probe will fined a move of work 1024x768@32 |
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356 | |||
357 | mov ax,1024 |
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358 | mov bx,768 |
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359 | mov si,modes_table |
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360 | call .loops |
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361 | test ax,ax |
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362 | jz .ok_found_mode |
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363 | mov ax,800 |
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364 | mov bx,600 |
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365 | mov si,modes_table |
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366 | call .loops |
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367 | test ax,ax |
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368 | jz .ok_found_mode |
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369 | mov ax,640 |
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370 | mov bx,480 |
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371 | mov si,modes_table |
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372 | call .loops |
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373 | test ax,ax |
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374 | jz .ok_found_mode |
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375 | |||
376 | mov si,modes_table |
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746 | Lrz | 377 | jmp .ok_found_mode |
714 | Lrz | 378 | |
379 | |||
746 | Lrz | 380 | |
381 | .no_zero: |
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749 | Lrz | 382 | mov bp,word [number_vm] |
383 | cmp bp,word [es:si+6] |
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384 | jz .ok_found_mode |
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746 | Lrz | 385 | mov ax,word [x_save] |
386 | mov bx,word [y_save] |
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387 | mov si,modes_table |
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388 | call .loops |
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389 | test ax,ax |
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390 | jz .ok_found_mode |
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391 | |||
749 | Lrz | 392 | mov si,modes_table |
746 | Lrz | 393 | ; cmp ax,modes_table |
394 | ; jb .zerro ;check on correct if bellow |
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395 | ; cmp ax,word [end_cursor] |
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396 | ; ja .zerro ;check on correct if anymore |
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397 | |||
714 | Lrz | 398 | .ok_found_mode: |
399 | mov word [home_cursor],si |
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400 | ; mov word [cursor_pos],si |
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401 | mov word [preboot_graph],si |
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402 | mov ax,si |
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403 | |||
404 | mov ecx,long_v_table |
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405 | |||
406 | .loop: add ax,size_of_step |
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407 | cmp ax,word [end_cursor] |
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408 | jae .next_step |
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409 | loop .loop |
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410 | .next_step: |
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411 | sub ax,size_of_step*long_v_table |
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412 | cmp ax,modes_table |
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738 | diamond | 413 | jae @f |
414 | mov ax,modes_table |
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415 | @@: |
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714 | Lrz | 416 | |
946 | lrz | 417 | mov word [home_cursor],ax |
418 | mov si,[preboot_graph] |
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419 | mov word [cursor_pos],si |
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420 | |||
421 | push word [es:si] |
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422 | pop word [x_save] |
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423 | push word [es:si+2] |
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424 | pop word [y_save] |
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425 | push word [es:si+6] |
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426 | pop word [number_vm] |
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427 | |||
714 | Lrz | 428 | ret |
429 | ;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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430 | .loops: |
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431 | cmp ax,word [es:si] |
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432 | jne .next |
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433 | cmp bx,word [es:si+2] |
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434 | jne .next |
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435 | cmp word [es:si+8],32 |
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436 | je .ok |
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437 | cmp word [es:si+8],24 |
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438 | je .ok |
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439 | .next: add si,size_of_step |
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440 | cmp word [es:si],-1 |
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441 | je .exit |
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442 | jmp .loops |
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443 | .ok: xor ax,ax |
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946 | lrz | 444 | ret |
445 | .exit: or ax,-1 |
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446 | ret |
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714 | Lrz | 447 | |
448 | |||
449 | ;----------------------------------------------------------------------------- |
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450 | |||
746 | Lrz | 451 | ;default_vmode: |
714 | Lrz | 452 | |
453 | ;----------------------------------------------------------------------------- |
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454 | draw_vmodes_table: |
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455 | _setcursor 9, 2 |
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456 | mov si,gr_mode |
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457 | call printplain |
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458 | |||
459 | mov si,_st |
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460 | call printplain |
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461 | |||
462 | push word [cursor_pos] |
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463 | pop ax |
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464 | push word [home_cursor] |
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465 | pop si |
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466 | mov cx,si |
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467 | |||
468 | cmp ax,si |
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469 | je .ok |
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470 | jb .low |
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471 | |||
472 | |||
473 | add cx,size_of_step*long_v_table |
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474 | |||
475 | cmp ax,cx |
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476 | jb .ok |
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477 | |||
478 | sub cx,size_of_step*long_v_table |
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479 | add cx,size_of_step |
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480 | cmp cx,word[end_cursor] |
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481 | jae .ok |
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482 | add si,size_of_step |
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483 | push si |
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484 | pop word [home_cursor] |
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485 | jmp .ok |
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486 | |||
487 | |||
488 | .low: sub cx,size_of_step |
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489 | cmp cx,modes_table |
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490 | jb .ok |
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491 | push cx |
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492 | push cx |
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493 | pop word [home_cursor] |
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494 | pop si |
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495 | |||
496 | |||
497 | .ok: |
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834 | diamond | 498 | ; calculate scroll position |
499 | push si |
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500 | mov ax, [end_cursor] |
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501 | sub ax, modes_table |
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502 | mov bx, size_of_step |
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503 | cwd |
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504 | div bx |
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505 | mov si, ax ; si = size of list |
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506 | mov ax, [home_cursor] |
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507 | sub ax, modes_table |
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508 | cwd |
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509 | div bx |
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510 | mov di, ax |
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511 | mov ax, scroll_area_size*long_v_table |
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512 | cwd |
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513 | div si |
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514 | test ax, ax |
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515 | jnz @f |
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516 | inc ax |
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517 | @@: |
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518 | cmp al, scroll_area_size |
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519 | jb @f |
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520 | mov al, scroll_area_size |
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521 | @@: |
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522 | mov cx, ax |
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523 | ; cx = scroll height |
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524 | ; calculate scroll pos |
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525 | xor bx, bx ; initialize scroll pos |
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526 | sub al, scroll_area_size+1 |
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527 | neg al |
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528 | sub si, long_v_table-1 |
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529 | jbe @f |
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530 | mul di |
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531 | div si |
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532 | mov bx, ax |
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533 | @@: |
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534 | inc bx |
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535 | imul ax, bx, size_of_step |
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536 | add ax, [home_cursor] |
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537 | mov [scroll_start], ax |
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538 | imul cx, size_of_step |
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539 | add ax, cx |
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540 | mov [scroll_end], ax |
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541 | pop si |
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714 | Lrz | 542 | mov bp,long_v_table ;show rows |
543 | .@@_next_bit: |
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834 | diamond | 544 | ;clear cursor |
946 | lrz | 545 | mov ax,' ' |
546 | mov word[ds:_r1+21],ax |
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547 | mov word[ds:_r1+50],ax |
||
834 | diamond | 548 | |
946 | lrz | 549 | mov word[ds:_r2+21],ax |
550 | mov word[ds:_r2+45],ax |
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834 | diamond | 551 | |
946 | lrz | 552 | mov word[ds:_rs+21],ax |
553 | mov word[ds:_rs+46],ax |
||
834 | diamond | 554 | ; draw string |
714 | Lrz | 555 | cmp word [es:si+6],0x12 |
556 | je .show_0x12 |
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557 | cmp word [es:si+6],0x13 |
||
558 | je .show_0x13 |
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559 | |||
560 | movzx eax,word[es:si] |
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561 | cmp ax,-1 |
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562 | je .@@_end |
||
563 | mov di,_rs+23 |
||
564 | mov ecx,10 |
||
565 | mov bl,4 |
||
566 | call int2str |
||
567 | movzx eax,word[es:si+2] |
||
568 | inc di |
||
569 | mov bl,4 |
||
570 | call int2str |
||
571 | |||
572 | movzx eax,word[es:si+8] |
||
573 | inc di |
||
574 | mov bl,2 |
||
575 | call int2str |
||
576 | |||
577 | cmp si, word [cursor_pos] |
||
578 | jne .next |
||
579 | ;draw cursor |
||
580 | mov word[ds:_rs+21],'>>' |
||
581 | mov word[ds:_rs+46],'<<' |
||
582 | |||
583 | |||
584 | |||
585 | .next: |
||
586 | push si |
||
587 | mov si,_rs |
||
588 | .@@_sh: |
||
834 | diamond | 589 | ; add to the string pseudographics for scrollbar |
590 | pop bx |
||
591 | push bx |
||
592 | mov byte [si+53], ' ' |
||
593 | cmp bx, [scroll_start] |
||
594 | jb @f |
||
595 | cmp bx, [scroll_end] |
||
596 | jae @f |
||
597 | mov byte [si+53], 0xDB ; filled bar |
||
598 | @@: |
||
599 | push bx |
||
600 | add bx, size_of_step |
||
601 | cmp bx, [end_cursor] |
||
602 | jnz @f |
||
603 | mov byte [si+53], 31 ; 'down arrow' symbol |
||
604 | @@: |
||
605 | sub bx, [home_cursor] |
||
606 | cmp bx, size_of_step*long_v_table |
||
607 | jnz @f |
||
608 | mov byte [si+53], 31 ; 'down arrow' symbol |
||
609 | @@: |
||
610 | pop bx |
||
611 | cmp bx, [home_cursor] |
||
612 | jnz @f |
||
613 | mov byte [si+53], 30 ; 'up arrow' symbol |
||
614 | @@: |
||
714 | Lrz | 615 | call printplain |
616 | pop si |
||
617 | add si,size_of_step |
||
618 | |||
619 | dec bp |
||
620 | jnz .@@_next_bit |
||
621 | |||
622 | .@@_end: |
||
623 | mov si,_bt |
||
624 | call printplain |
||
625 | ret |
||
626 | .show_0x13: |
||
627 | push si |
||
628 | |||
629 | cmp si, word [cursor_pos] |
||
630 | jne @f |
||
631 | mov word[ds:_r1+21],'>>' |
||
632 | mov word[ds:_r1+50],'<<' |
||
633 | @@: |
||
634 | mov si,_r1 |
||
635 | jmp .@@_sh |
||
636 | .show_0x12: |
||
637 | push si |
||
638 | cmp si, word [cursor_pos] |
||
639 | jne @f |
||
640 | |||
641 | mov word[ds:_r2+21],'>>' |
||
642 | mov word[ds:_r2+45],'<<' |
||
643 | @@: |
||
644 | mov si,_r2 |
||
645 | jmp .@@_sh |
||
646 | |||
647 | ;----------------------------------------------------------------------------- |
||
648 | ;Clear arrea of current video page (0xb800) |
||
649 | clear_vmodes_table: |
||
650 | pusha |
||
651 | ; draw frames |
||
652 | push es |
||
653 | push 0xb800 |
||
654 | pop es |
||
655 | mov di,1444 |
||
656 | xor ax,ax |
||
657 | mov ah, 1*16+15 |
||
658 | mov cx,70 |
||
659 | mov bp,12 |
||
660 | .loop_start: |
||
946 | lrz | 661 | rep stosw |
714 | Lrz | 662 | mov cx,70 |
663 | add di,20 |
||
946 | lrz | 664 | dec bp |
665 | jns .loop_start |
||
714 | Lrz | 666 | pop es |
667 | popa |
||
668 | ret |
||
669 | |||
670 | ;----------------------------------------------------------------------------- |
||
671 | |||
672 | set_vmode: |
||
673 | push 0 ;0;x1000 |
||
674 | pop es |
||
675 | |||
676 | mov si,word [preboot_graph] ;[preboot_graph] |
||
677 | mov cx,word [es:si+6] ; number of mode |
||
678 | |||
679 | |||
680 | mov ax,word [es:si+0] ; resolution X |
||
681 | mov bx,word [es:si+2] ; resolution Y |
||
682 | |||
683 | |||
684 | mov word [es:0x900A],ax ; resolution X |
||
685 | mov word [es:0x900C],bx ; resolution Y |
||
686 | mov word [es:0x9008],cx ; number of mode |
||
687 | |||
688 | cmp cx,0x12 |
||
689 | je .mode0x12_0x13 |
||
690 | cmp cx,0x13 |
||
691 | je .mode0x12_0x13 |
||
692 | |||
693 | |||
694 | cmp byte [s_vesa.ver],'2' |
||
695 | jb .vesa12 |
||
696 | |||
697 | ; VESA 2 and Vesa 3 |
||
698 | |||
699 | mov ax,0x4f01 |
||
700 | and cx,0xfff |
||
701 | mov di,mi;0xa000 |
||
702 | int 0x10 |
||
703 | ; LFB |
||
704 | mov eax,[es:mi.PhysBasePtr];di+0x28] |
||
705 | mov [es:0x9018],eax |
||
706 | ; ---- vbe voodoo |
||
707 | BytesPerLine equ 0x10 |
||
708 | mov ax, [es:di+BytesPerLine] |
||
709 | mov [es:0x9001], ax |
||
710 | ; BPP |
||
711 | cmp [es:mi.BitsPerPixel],16 |
||
712 | jne .l0 |
||
713 | cmp [es:mi.GreenMaskSize],5 |
||
714 | jne .l0 |
||
715 | mov [es:mi.BitsPerPixel],15 |
||
716 | .l0: |
||
717 | mov al, byte [es:di+0x19] |
||
718 | mov [es:0x9000], al |
||
719 | jmp .exit |
||
720 | |||
721 | .mode0x12_0x13: |
||
722 | mov byte [es:0x9000], 32 |
||
723 | or dword [es:0x9018], 0xFFFFFFFF; 0x800000 |
||
724 | |||
725 | |||
726 | ; VESA 1.2 PM BANK SWITCH ADDRESS |
||
727 | |||
728 | .vesa12: |
||
729 | |||
730 | |||
731 | mov ax,0x4f0A |
||
732 | xor bx,bx |
||
733 | int 0x10 |
||
734 | xor eax,eax |
||
735 | xor ebx,ebx |
||
736 | mov ax,es |
||
737 | shl eax,4 |
||
738 | mov bx,di |
||
739 | add eax,ebx |
||
740 | movzx ebx,word[es:di] |
||
741 | add eax,ebx |
||
742 | push 0x0000 |
||
743 | pop es |
||
744 | mov [es:0x9014],eax |
||
745 | .exit: |
||
746 | ret |
||
747 | |||
748 | |||
749 | ; mov dword[es:0x9018],0x000A0000 |
||
750 | ; ret |
||
751 | |||
752 | ;============================================================================= |
||
753 | ;============================================================================= |
||
754 | ;=============================================================================' |
||
755 |