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Rev 6275 Rev 7132
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align 4
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align 4
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init_video:
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init_video:
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        mov     ebp, bios_fb
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        mov     ebp, bios_fb
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        movzx   eax, byte [BOOT_VARS+BOOT_BPP]      ; bpp
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        movzx   eax, byte [BOOT.bpp]      ; bpp
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        mov     [_display.bits_per_pixel], eax
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        mov     [_display.bits_per_pixel], eax
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        mov     [_display.vrefresh], 60
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        mov     [_display.vrefresh], 60
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        movzx   eax, word [BOOT_VARS+BOOT_X_RES]; X max
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        movzx   eax, word [BOOT.x_res]; X max
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        mov     [_display.width], eax
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        mov     [_display.width], eax
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        mov     [ebp+FRB.width], eax
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        mov     [ebp+FRB.width], eax
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        mov     [display_width_standard], eax
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        mov     [display_width_standard], eax
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        dec     eax
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        dec     eax
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        mov     [screen_workarea.right], eax
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        mov     [screen_workarea.right], eax
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        movzx   eax, word [BOOT_VARS+BOOT_Y_RES]; Y max
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        movzx   eax, word [BOOT.y_res]; Y max
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        mov     [_display.height], eax
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        mov     [_display.height], eax
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        mov     [ebp+FRB.height], eax
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        mov     [ebp+FRB.height], eax
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        mov     [display_height_standard], eax
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        mov     [display_height_standard], eax
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        dec     eax
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        dec     eax
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        mov     [screen_workarea.bottom], eax
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        mov     [screen_workarea.bottom], eax
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        movzx   eax, word [BOOT_VARS+BOOT_VESA_MODE]    ; screen mode
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        movzx   eax, word [BOOT.vesa_mode]    ; screen mode
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        mov     dword [SCR_MODE], eax
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        mov     dword [SCR_MODE], eax
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        mov     eax, 640 *4                             ; Bytes PerScanLine
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        mov     eax, 640 *4                             ; Bytes PerScanLine
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        cmp     [SCR_MODE], word 0x13                   ; 320x200
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        cmp     [SCR_MODE], word 0x13                   ; 320x200
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        je      @f
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        je      @f
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        cmp     [SCR_MODE], word 0x12                   ; VGA 640x480
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        cmp     [SCR_MODE], word 0x12                   ; VGA 640x480
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        je      @f
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        je      @f
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        movzx   eax, word[BOOT_VARS+BOOT_PITCH]         ; for other modes
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        movzx   eax, word[BOOT.pitch]         ; for other modes
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@@:
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@@:
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        mov     [_display.lfb_pitch], eax
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        mov     [_display.lfb_pitch], eax
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        mov     [ebp+FRB.pitch], eax
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        mov     [ebp+FRB.pitch], eax
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        jnz     .new_pd
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        jnz     .new_pd
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        stdcall free_kernel_space, edi
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        stdcall free_kernel_space, edi
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        jmp     .ok
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        jmp     .ok
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.fake:
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.fake:
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        mov     [BOOT_VARS+BOOT_MTRR], byte 2
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        mov     [BOOT.mtrr], byte 2
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        stdcall alloc_kernel_space, 0x1000
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        stdcall alloc_kernel_space, 0x1000