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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: 941 $ |
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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114 | ;------------------------------------------------------- |
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115 | ;Write message about incorrect v_mode and write message about jmp on swith v_mode |
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116 | v_mode_error: |
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117 | _setcursor 19,2 |
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118 | mov si, fatalsel |
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119 | call printplain |
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120 | _setcursor 20,2 |
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121 | mov si,pres_key |
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122 | call printplain |
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123 | xor eax,eax |
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124 | int 16h |
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125 | jmp cfgmanager.d |
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126 | ;------------------------------------------------------- |
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127 | ; |
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128 | |||
129 | |||
130 | |||
131 | ;------------------------------------------------------- |
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132 | print_vesa_info: |
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133 | _setcursor 5,2 |
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134 | |||
135 | mov [es:vi.VESASignature],'VBE2' |
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136 | mov ax,0x4F00 |
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137 | mov di,vi ;0xa000 |
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138 | int 0x10 |
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139 | or ah,ah |
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140 | jz @f |
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141 | mov [es:vi.VESASignature],'VESA' |
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142 | mov ax,$4F00 |
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143 | mov di,vi |
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144 | int 0x10 |
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145 | or ah,ah |
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146 | jnz .exit |
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147 | @@: |
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148 | cmp [es:vi.VESASignature],'VESA' |
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149 | jne .exit |
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150 | cmp [es:vi.VESAVersion],0x0100 |
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151 | jb .exit |
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152 | jmp .vesaok2 |
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153 | |||
154 | .exit: |
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155 | mov si,novesa |
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156 | call printplain |
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157 | ret |
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158 | |||
159 | .vesaok2: |
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160 | mov ax,[es:vi.VESAVersion] |
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161 | add ax,'00' |
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162 | |||
163 | mov [s_vesa.ver], ah |
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164 | mov [s_vesa.ver+2], al |
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165 | mov si,s_vesa |
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166 | call printplain |
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167 | |||
168 | _setcursor 4,2 |
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169 | mov si,word[es:vi.OemStringPtr] |
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170 | mov di,si |
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171 | |||
172 | push ds |
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173 | mov ds,word[es:vi.OemStringPtr+2] |
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174 | call printplain |
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175 | pop ds |
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176 | |||
177 | ret |
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178 | ;----------------------------------------------------------------------------- |
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179 | |||
180 | calc_vmodes_table: |
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181 | pushad |
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182 | |||
183 | ; push 0 |
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184 | ; pop es |
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185 | |||
730 | diamond | 186 | lfs si, [es:vi.VideoModePtr] |
714 | Lrz | 187 | |
188 | mov bx,modes_table |
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189 | ;save no vesa mode of work 320x200, EGA/CGA 256 梥⮢ and 640x480, VGA 16 梥⮢ |
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190 | mov word [es:bx],640 |
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191 | mov word [es:bx+2],480 |
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192 | mov word [es:bx+6],0x13 |
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193 | |||
194 | mov word [es:bx+10],640 |
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195 | mov word [es:bx+12],480 |
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196 | mov word [es:bx+16],0x12 |
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197 | add bx,20 |
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198 | .next_mode: |
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199 | mov cx,word [fs:si] ; mode number |
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200 | cmp cx,-1 |
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201 | je .modes_ok.2 |
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202 | |||
203 | mov ax,0x4F01 |
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204 | mov di,mi |
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205 | int 0x10 |
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206 | |||
207 | or ah,ah |
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208 | jnz .modes_ok.2;vesa_info.exit |
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209 | |||
210 | test [es:mi.ModeAttributes],00000001b ;videomode support ? |
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211 | jz @f |
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212 | test [es:mi.ModeAttributes],00010000b ;picture ? |
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213 | jz @f |
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214 | test [es:mi.ModeAttributes],10000000b ;LFB ? |
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215 | jz @f |
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216 | |||
730 | diamond | 217 | ; cmp [es:mi.BitsPerPixel], 24 |
218 | ; jb @f |
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219 | |||
714 | Lrz | 220 | cmp [es:mi.BitsPerPixel],16 |
221 | jne .l0 |
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222 | cmp [es:mi.GreenMaskSize],5 |
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223 | jne .l0 |
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224 | mov [es:mi.BitsPerPixel],15 |
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225 | |||
226 | |||
227 | .l0: |
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228 | cmp [es:mi.XRes],640 |
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229 | jb @f |
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230 | cmp [es:mi.YRes],480 |
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231 | jb @f |
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232 | ; cmp [es:mi.BitsPerPixel],8 |
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233 | ; jb @f |
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234 | |||
235 | mov ax,[es:mi.XRes] |
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236 | mov [es:bx+0],ax ; +0[2] : resolution X |
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237 | mov ax,[es:mi.YRes] |
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238 | mov [es:bx+2],ax ; +2[2] : resolution Y |
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239 | mov ax,[es:mi.ModeAttributes] |
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240 | mov [es:bx+4],ax ; +4[2] : attributes |
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241 | |||
242 | cmp [s_vesa.ver],'2' |
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243 | jb .lp1 |
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244 | |||
245 | or cx,0x4000 ; use LFB |
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246 | .lp1: mov [es:bx+6],cx ; +6 : mode number |
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247 | movzx ax,byte [es:mi.BitsPerPixel] |
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248 | mov word [es:bx+8],ax ; +8 : bits per pixel |
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249 | add bx,size_of_step |
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250 | |||
251 | @@: |
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252 | add si,2 |
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253 | jmp .next_mode |
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254 | |||
255 | .modes_ok.2: |
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256 | |||
257 | mov word[es:bx],-1 ;end video table |
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258 | mov word[end_cursor],bx ;save end cursor position |
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259 | ;;;;;;;;;;;;;;;;;; |
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260 | ;Sort array |
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261 | ; mov si,modes_table |
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262 | ;.new_mode: |
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263 | ; mov ax,word [es:si] |
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264 | ; cmp ax,-1 |
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265 | ; je .exxit |
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266 | ; add ax,word [es:si+2] |
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267 | ; add ax,word [es:si+8] |
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268 | ; mov bp,si |
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269 | ;.again: |
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270 | ; add bp,12 |
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271 | ; mov bx,word [es:bp] |
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272 | ; cmp bx,-1 |
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273 | ; je .exit |
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274 | ; add bx,word [es:bp+2] |
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275 | ; add bx,word [es:bp+8] |
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276 | ; |
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277 | ; cmp ax,bx |
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278 | ; ja .loops |
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279 | ; jmp .again |
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280 | ;.loops: |
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281 | ; push dword [es:si] |
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282 | ; push dword [es:si+4] |
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283 | ; push dword [es:si+8] |
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284 | ; push dword [es:bp] |
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285 | ; push dword [es:bp+4] |
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286 | ; push dword [es:bp+8] |
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287 | ; |
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288 | ; pop dword [es:si+8] |
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289 | ; pop dword [es:si+4] |
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290 | ; pop dword [es:si] |
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291 | ; pop dword [es:bp+8] |
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292 | ; pop dword [es:bp+4] |
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293 | ; pop dword [es:bp] |
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294 | ; jmp .new_mode |
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295 | ; |
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296 | ;.exit: add si,12 |
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297 | ; jmp .new_mode |
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298 | ;.exxit: |
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299 | popad |
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300 | ret |
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301 | |||
302 | ;----------------------------------------------------------------------------- |
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303 | |||
304 | draw_current_vmode: |
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305 | push 0 |
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306 | pop es |
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307 | |||
308 | mov si,word [cursor_pos] |
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309 | |||
310 | cmp word [es:si+6],0x12 |
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311 | je .no_vesa_0x12 |
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312 | |||
313 | cmp word [es:si+6],0x13 |
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314 | je .no_vesa_0x13 |
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315 | |||
316 | mov di,loader_block_error |
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317 | movzx eax,word[es:si+0] |
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318 | mov ecx,10 |
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319 | call int2strnz |
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320 | mov byte[es:di],'x' |
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321 | inc di |
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322 | movzx eax,word[es:si+2] |
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323 | call int2strnz |
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324 | mov byte[es:di],'x' |
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325 | inc di |
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326 | movzx eax,word[es:si+8] |
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327 | call int2strnz |
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328 | mov dword[es:di],0x00000d0a |
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329 | mov si,loader_block_error |
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330 | push ds |
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331 | push es |
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332 | pop ds |
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333 | call printplain |
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334 | pop ds |
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335 | ret |
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336 | .no_vesa_0x13: |
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337 | mov si,mode0 |
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338 | jmp .print |
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339 | .no_vesa_0x12: |
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340 | mov si,mode9 |
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341 | .print: |
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342 | call printplain |
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343 | ret |
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344 | ;----------------------------------------------------------------------------- |
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345 | check_first_parm: |
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749 | Lrz | 346 | mov si,word [preboot_graph] |
347 | test si,si |
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714 | Lrz | 348 | jnz .no_zero ;if no zero |
349 | .zerro: |
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350 | ; mov ax,modes_table |
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351 | ; mov word [cursor_pos],ax |
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352 | ; mov word [home_cursor],ax |
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353 | ; mov word [preboot_graph],ax |
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354 | ;SET default video of mode first probe will fined a move of work 1024x768@32 |
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355 | |||
356 | mov ax,1024 |
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357 | mov bx,768 |
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358 | mov si,modes_table |
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359 | call .loops |
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360 | test ax,ax |
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361 | jz .ok_found_mode |
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362 | mov ax,800 |
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363 | mov bx,600 |
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364 | mov si,modes_table |
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365 | call .loops |
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366 | test ax,ax |
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367 | jz .ok_found_mode |
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368 | mov ax,640 |
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369 | mov bx,480 |
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370 | mov si,modes_table |
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371 | call .loops |
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372 | test ax,ax |
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373 | jz .ok_found_mode |
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374 | |||
375 | mov si,modes_table |
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746 | Lrz | 376 | jmp .ok_found_mode |
714 | Lrz | 377 | |
378 | |||
746 | Lrz | 379 | |
380 | .no_zero: |
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749 | Lrz | 381 | mov bp,word [number_vm] |
382 | cmp bp,word [es:si+6] |
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383 | jz .ok_found_mode |
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746 | Lrz | 384 | mov ax,word [x_save] |
385 | mov bx,word [y_save] |
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386 | mov si,modes_table |
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387 | call .loops |
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388 | test ax,ax |
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389 | jz .ok_found_mode |
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390 | |||
749 | Lrz | 391 | mov si,modes_table |
746 | Lrz | 392 | ; cmp ax,modes_table |
393 | ; jb .zerro ;check on correct if bellow |
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394 | ; cmp ax,word [end_cursor] |
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395 | ; ja .zerro ;check on correct if anymore |
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396 | |||
714 | Lrz | 397 | .ok_found_mode: |
398 | mov word [home_cursor],si |
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399 | ; mov word [cursor_pos],si |
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400 | mov word [preboot_graph],si |
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401 | mov ax,si |
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402 | |||
403 | mov ecx,long_v_table |
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404 | |||
405 | .loop: add ax,size_of_step |
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406 | cmp ax,word [end_cursor] |
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407 | jae .next_step |
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408 | loop .loop |
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409 | .next_step: |
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410 | sub ax,size_of_step*long_v_table |
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411 | cmp ax,modes_table |
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738 | diamond | 412 | jae @f |
413 | mov ax,modes_table |
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414 | @@: |
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714 | Lrz | 415 | |
416 | mov word[home_cursor],ax |
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417 | push word [preboot_graph] |
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418 | pop word [cursor_pos] |
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419 | ret |
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420 | ;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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421 | .loops: |
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422 | cmp ax,word [es:si] |
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423 | jne .next |
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424 | cmp bx,word [es:si+2] |
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425 | jne .next |
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426 | cmp word [es:si+8],32 |
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427 | je .ok |
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428 | cmp word [es:si+8],24 |
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429 | je .ok |
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430 | .next: add si,size_of_step |
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431 | cmp word [es:si],-1 |
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432 | je .exit |
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433 | jmp .loops |
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434 | .ok: xor ax,ax |
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435 | .exit: ret |
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436 | |||
437 | |||
438 | ;----------------------------------------------------------------------------- |
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439 | |||
746 | Lrz | 440 | ;default_vmode: |
714 | Lrz | 441 | |
442 | ;----------------------------------------------------------------------------- |
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443 | draw_vmodes_table: |
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444 | _setcursor 9, 2 |
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445 | mov si,gr_mode |
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446 | call printplain |
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447 | |||
448 | mov si,_st |
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449 | call printplain |
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450 | |||
451 | push word [cursor_pos] |
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452 | pop ax |
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453 | push word [home_cursor] |
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454 | pop si |
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455 | mov cx,si |
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456 | |||
457 | cmp ax,si |
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458 | je .ok |
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459 | jb .low |
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460 | |||
461 | |||
462 | add cx,size_of_step*long_v_table |
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463 | |||
464 | cmp ax,cx |
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465 | jb .ok |
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466 | |||
467 | sub cx,size_of_step*long_v_table |
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468 | add cx,size_of_step |
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469 | cmp cx,word[end_cursor] |
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470 | jae .ok |
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471 | add si,size_of_step |
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472 | push si |
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473 | pop word [home_cursor] |
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474 | jmp .ok |
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475 | |||
476 | |||
477 | .low: sub cx,size_of_step |
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478 | cmp cx,modes_table |
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479 | jb .ok |
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480 | push cx |
||
481 | push cx |
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482 | pop word [home_cursor] |
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483 | pop si |
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484 | |||
485 | |||
486 | .ok: |
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834 | diamond | 487 | ; calculate scroll position |
488 | push si |
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489 | mov ax, [end_cursor] |
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490 | sub ax, modes_table |
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491 | mov bx, size_of_step |
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492 | cwd |
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493 | div bx |
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494 | mov si, ax ; si = size of list |
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495 | mov ax, [home_cursor] |
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496 | sub ax, modes_table |
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497 | cwd |
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498 | div bx |
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499 | mov di, ax |
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500 | mov ax, scroll_area_size*long_v_table |
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501 | cwd |
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502 | div si |
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503 | test ax, ax |
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504 | jnz @f |
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505 | inc ax |
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506 | @@: |
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507 | cmp al, scroll_area_size |
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508 | jb @f |
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509 | mov al, scroll_area_size |
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510 | @@: |
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511 | mov cx, ax |
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512 | ; cx = scroll height |
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513 | ; calculate scroll pos |
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514 | xor bx, bx ; initialize scroll pos |
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515 | sub al, scroll_area_size+1 |
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516 | neg al |
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517 | sub si, long_v_table-1 |
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518 | jbe @f |
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519 | mul di |
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520 | div si |
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521 | mov bx, ax |
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522 | @@: |
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523 | inc bx |
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524 | imul ax, bx, size_of_step |
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525 | add ax, [home_cursor] |
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526 | mov [scroll_start], ax |
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527 | imul cx, size_of_step |
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528 | add ax, cx |
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529 | mov [scroll_end], ax |
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530 | pop si |
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714 | Lrz | 531 | mov bp,long_v_table ;show rows |
532 | .@@_next_bit: |
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834 | diamond | 533 | ;clear cursor |
534 | mov word[ds:_r1+21],' ' |
||
535 | mov word[ds:_r1+50],' ' |
||
536 | |||
537 | mov word[ds:_r2+21],' ' |
||
538 | mov word[ds:_r2+45],' ' |
||
539 | |||
540 | mov word[ds:_rs+21],' ' |
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541 | mov word[ds:_rs+46],' ' |
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542 | ; draw string |
||
714 | Lrz | 543 | cmp word [es:si+6],0x12 |
544 | je .show_0x12 |
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545 | cmp word [es:si+6],0x13 |
||
546 | je .show_0x13 |
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547 | |||
548 | movzx eax,word[es:si] |
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549 | cmp ax,-1 |
||
550 | je .@@_end |
||
551 | mov di,_rs+23 |
||
552 | mov ecx,10 |
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553 | mov bl,4 |
||
554 | call int2str |
||
555 | movzx eax,word[es:si+2] |
||
556 | inc di |
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557 | mov bl,4 |
||
558 | call int2str |
||
559 | |||
560 | movzx eax,word[es:si+8] |
||
561 | inc di |
||
562 | mov bl,2 |
||
563 | call int2str |
||
564 | |||
565 | cmp si, word [cursor_pos] |
||
566 | jne .next |
||
567 | ;draw cursor |
||
568 | mov word[ds:_rs+21],'>>' |
||
569 | mov word[ds:_rs+46],'<<' |
||
570 | |||
571 | |||
572 | |||
573 | .next: |
||
574 | push si |
||
575 | mov si,_rs |
||
576 | .@@_sh: |
||
834 | diamond | 577 | ; add to the string pseudographics for scrollbar |
578 | pop bx |
||
579 | push bx |
||
580 | mov byte [si+53], ' ' |
||
581 | cmp bx, [scroll_start] |
||
582 | jb @f |
||
583 | cmp bx, [scroll_end] |
||
584 | jae @f |
||
585 | mov byte [si+53], 0xDB ; filled bar |
||
586 | @@: |
||
587 | push bx |
||
588 | add bx, size_of_step |
||
589 | cmp bx, [end_cursor] |
||
590 | jnz @f |
||
591 | mov byte [si+53], 31 ; 'down arrow' symbol |
||
592 | @@: |
||
593 | sub bx, [home_cursor] |
||
594 | cmp bx, size_of_step*long_v_table |
||
595 | jnz @f |
||
596 | mov byte [si+53], 31 ; 'down arrow' symbol |
||
597 | @@: |
||
598 | pop bx |
||
599 | cmp bx, [home_cursor] |
||
600 | jnz @f |
||
601 | mov byte [si+53], 30 ; 'up arrow' symbol |
||
602 | @@: |
||
714 | Lrz | 603 | call printplain |
604 | pop si |
||
605 | add si,size_of_step |
||
606 | |||
607 | dec bp |
||
608 | jnz .@@_next_bit |
||
609 | |||
610 | .@@_end: |
||
611 | mov si,_bt |
||
612 | call printplain |
||
613 | ret |
||
614 | .show_0x13: |
||
615 | push si |
||
616 | |||
617 | cmp si, word [cursor_pos] |
||
618 | jne @f |
||
619 | mov word[ds:_r1+21],'>>' |
||
620 | mov word[ds:_r1+50],'<<' |
||
621 | @@: |
||
622 | mov si,_r1 |
||
623 | jmp .@@_sh |
||
624 | .show_0x12: |
||
625 | push si |
||
626 | cmp si, word [cursor_pos] |
||
627 | jne @f |
||
628 | |||
629 | mov word[ds:_r2+21],'>>' |
||
630 | mov word[ds:_r2+45],'<<' |
||
631 | @@: |
||
632 | mov si,_r2 |
||
633 | jmp .@@_sh |
||
634 | |||
635 | ;----------------------------------------------------------------------------- |
||
636 | ;Clear arrea of current video page (0xb800) |
||
637 | clear_vmodes_table: |
||
638 | pusha |
||
639 | ; draw frames |
||
640 | push es |
||
641 | push 0xb800 |
||
642 | pop es |
||
643 | mov di,1444 |
||
644 | xor ax,ax |
||
645 | mov ah, 1*16+15 |
||
646 | mov cx,70 |
||
647 | mov bp,12 |
||
648 | .loop_start: |
||
941 | Lrz | 649 | rep stosw ;®ç¨á⪠®¡« á⨠íªà |
714 | Lrz | 650 | mov cx,70 |
651 | add di,20 |
||
941 | Lrz | 652 | dec bp ;㬥ì襨¥ bp, ¢ bp áç¥â稪 |
714 | Lrz | 653 | jns .loop_start |
654 | pop es |
||
655 | popa |
||
656 | ret |
||
657 | |||
658 | ;----------------------------------------------------------------------------- |
||
659 | |||
660 | set_vmode: |
||
661 | push 0 ;0;x1000 |
||
662 | pop es |
||
663 | |||
664 | mov si,word [preboot_graph] ;[preboot_graph] |
||
665 | mov cx,word [es:si+6] ; number of mode |
||
666 | |||
667 | |||
668 | mov ax,word [es:si+0] ; resolution X |
||
669 | mov bx,word [es:si+2] ; resolution Y |
||
670 | |||
671 | |||
672 | mov word [es:0x900A],ax ; resolution X |
||
673 | mov word [es:0x900C],bx ; resolution Y |
||
674 | mov word [es:0x9008],cx ; number of mode |
||
675 | |||
676 | cmp cx,0x12 |
||
677 | je .mode0x12_0x13 |
||
678 | cmp cx,0x13 |
||
679 | je .mode0x12_0x13 |
||
680 | |||
681 | |||
682 | cmp byte [s_vesa.ver],'2' |
||
683 | jb .vesa12 |
||
684 | |||
685 | ; VESA 2 and Vesa 3 |
||
686 | |||
687 | mov ax,0x4f01 |
||
688 | and cx,0xfff |
||
689 | mov di,mi;0xa000 |
||
690 | int 0x10 |
||
691 | ; LFB |
||
692 | mov eax,[es:mi.PhysBasePtr];di+0x28] |
||
693 | mov [es:0x9018],eax |
||
694 | ; ---- vbe voodoo |
||
695 | BytesPerLine equ 0x10 |
||
696 | mov ax, [es:di+BytesPerLine] |
||
697 | mov [es:0x9001], ax |
||
698 | ; BPP |
||
699 | cmp [es:mi.BitsPerPixel],16 |
||
700 | jne .l0 |
||
701 | cmp [es:mi.GreenMaskSize],5 |
||
702 | jne .l0 |
||
703 | mov [es:mi.BitsPerPixel],15 |
||
704 | .l0: |
||
705 | mov al, byte [es:di+0x19] |
||
706 | mov [es:0x9000], al |
||
707 | jmp .exit |
||
708 | |||
709 | .mode0x12_0x13: |
||
710 | mov byte [es:0x9000], 32 |
||
711 | or dword [es:0x9018], 0xFFFFFFFF; 0x800000 |
||
712 | |||
713 | |||
714 | ; VESA 1.2 PM BANK SWITCH ADDRESS |
||
715 | |||
716 | .vesa12: |
||
717 | |||
718 | |||
719 | mov ax,0x4f0A |
||
720 | xor bx,bx |
||
721 | int 0x10 |
||
722 | xor eax,eax |
||
723 | xor ebx,ebx |
||
724 | mov ax,es |
||
725 | shl eax,4 |
||
726 | mov bx,di |
||
727 | add eax,ebx |
||
728 | movzx ebx,word[es:di] |
||
729 | add eax,ebx |
||
730 | push 0x0000 |
||
731 | pop es |
||
732 | mov [es:0x9014],eax |
||
733 | .exit: |
||
734 | ret |
||
735 | |||
736 | |||
737 | ; mov dword[es:0x9018],0x000A0000 |
||
738 | ; ret |
||
739 | |||
740 | ;============================================================================= |
||
741 | ;============================================================================= |
||
742 | ;=============================================================================' |
||
743 |