| 0,0 → 1,245 |
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| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| ;; ;; |
| ;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;; |
| ;; Distributed under terms of the GNU General Public License ;; |
| ;; ;; |
| ;; Synhronization for MenuetOS. ;; |
| ;; Author: Halyavin Andrey, halyavin@land.ru ;; |
| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| |
| $Revision: 6240 $ |
| |
| struct FRB |
| list LHEAD |
| magic rd 1 |
| handle rd 1 |
| destroy rd 1 |
| |
| width rd 1 |
| height rd 1 |
| pitch rd 1 |
| format rd 1 |
| private rd 1 |
| pde rd 8 |
| ends |
| |
| align 4 |
| create_framebuffer: |
| mov ecx, sizeof.FRB |
| call create_object |
| test eax, eax |
| jz .fail |
| |
| mov [eax+FRB.magic], 'FRMB' |
| mov [eax+FRB.destroy], 0 |
| .fail: |
| ret |
| |
| |
| align 4 |
| init_video: |
| mov ebp, bios_fb |
| |
| movzx eax, byte [BOOT_VARS+BOOT_BPP] ; bpp |
| mov [_display.bits_per_pixel], eax |
| mov [_display.vrefresh], 60 |
| |
| movzx eax, word [BOOT_VARS+BOOT_X_RES]; X max |
| mov [_display.width], eax |
| mov [ebp+FRB.width], eax |
| mov [display_width_standard], eax |
| dec eax |
| mov [screen_workarea.right], eax |
| |
| movzx eax, word [BOOT_VARS+BOOT_Y_RES]; Y max |
| mov [_display.height], eax |
| mov [ebp+FRB.height], eax |
| mov [display_height_standard], eax |
| dec eax |
| mov [screen_workarea.bottom], eax |
| |
| movzx eax, word [BOOT_VARS+BOOT_VESA_MODE] ; screen mode |
| mov dword [SCR_MODE], eax |
| mov eax, 640 *4 ; Bytes PerScanLine |
| cmp [SCR_MODE], word 0x13 ; 320x200 |
| je @f |
| cmp [SCR_MODE], word 0x12 ; VGA 640x480 |
| je @f |
| movzx eax, word[BOOT_VARS+BOOT_PITCH] ; for other modes |
| @@: |
| mov [_display.lfb_pitch], eax |
| mov [ebp+FRB.pitch], eax |
| |
| mov eax, [BOOT_VARS+BOOT_LFB] |
| mov [LFBAddress], eax |
| |
| mov eax, [_display.width] |
| mul [_display.height] |
| mov [_display.win_map_size], eax |
| |
| cmp word [SCR_MODE], 0x0012 ; VGA (640x480 16 colors) |
| je .vga |
| cmp word [SCR_MODE], 0x0013 ; MCGA (320*200 256 colors) |
| je .32bpp |
| cmp byte [_display.bits_per_pixel], 32 |
| je .32bpp |
| cmp byte [_display.bits_per_pixel], 24 |
| je .24bpp |
| cmp byte [_display.bits_per_pixel], 16 |
| je .16bpp |
| |
| .vga: |
| mov [PUTPIXEL], VGA_putpixel |
| mov [GETPIXEL], Vesa20_getpixel32 ; Conversion buffer is 32 bpp |
| mov [_display.bytes_per_pixel], 4 ; Conversion buffer is 32 bpp |
| jmp .finish |
| |
| .16bpp: |
| mov [PUTPIXEL], Vesa20_putpixel16 |
| mov [GETPIXEL], Vesa20_getpixel16 |
| mov [_display.bytes_per_pixel], 2 |
| jmp .finish |
| |
| .24bpp: |
| mov [PUTPIXEL], Vesa20_putpixel24 |
| mov [GETPIXEL], Vesa20_getpixel24 |
| mov [_display.bytes_per_pixel], 3 |
| jmp .finish |
| |
| .32bpp: |
| mov [PUTPIXEL], Vesa20_putpixel32 |
| mov [GETPIXEL], Vesa20_getpixel32 |
| mov [_display.bytes_per_pixel], 4 |
| |
| .finish: |
| mov [MOUSE_PICTURE], mousepointer |
| mov [_display.check_mouse], check_mouse_area_for_putpixel |
| mov [_display.check_m_pixel], check_mouse_area_for_getpixel |
| |
| mov ax, word [SCR_MODE] |
| cmp ax, 0x0012 |
| je .fake |
| cmp ax, 0x0013 |
| je .fake |
| |
| mov esi, [LFBAddress] |
| bt [cpu_caps], CAPS_PSE |
| jnc .create_page_tables |
| |
| mov edx, 0x00400000 |
| or esi, PG_GLOBAL+PDE_LARGE+PAT_WC+PG_UWR |
| and esi, [pte_valid_mask] |
| mov [ebp+FRB.pde], esi |
| add esi, edx |
| mov [ebp+FRB.pde+4], esi |
| add esi, edx |
| mov [ebp+FRB.pde+8], esi |
| add esi, edx |
| mov [ebp+FRB.pde+12], esi |
| add esi, edx |
| .ok: |
| call calculate_fast_getting_offset_for_WinMapAddress |
| ; for Qemu or non standart video cards |
| ; Unfortunately [BytesPerScanLine] does not always |
| ; equal to [_display.width] * [ScreenBPP] / 8 |
| call calculate_fast_getting_offset_for_LFB |
| ret |
| |
| .create_page_tables: |
| |
| add ebp, FRB.pde |
| or esi, PG_GLOBAL+PAT_WC+PG_UWR |
| and esi, [pte_valid_mask] |
| |
| stdcall alloc_kernel_space, 0x1000 |
| mov edi, eax |
| mov ebx, 4 |
| |
| .new_pd: |
| call alloc_page |
| lea edx, [eax+PG_UWR] |
| mov [ebp], edx |
| |
| stdcall map_page, edi, eax, PG_SWR |
| |
| mov eax, esi |
| mov ecx, 1024 |
| @@: |
| stosd |
| add eax, 0x1000 |
| loop @B |
| |
| add esi, 0x400000 |
| add ebp, 4 |
| sub edi, 4096 |
| dec ebx |
| jnz .new_pd |
| stdcall free_kernel_space, edi |
| jmp .ok |
| |
| .fake: |
| mov [BOOT_VARS+BOOT_MTRR], byte 2 |
| |
| stdcall alloc_kernel_space, 0x1000 |
| push eax ;store in stack for subsequent |
| mov edi, eax ;free_kernel_space call |
| |
| call alloc_page |
| lea edx, [eax+PG_UWR] |
| mov [ebp+FRB.pde], edx |
| |
| stdcall map_page, edi, eax, PG_SWR |
| |
| ; max VGA=640*480*4=1228800 bytes |
| ; + 32*640*4=81920 bytes for mouse pointer |
| stdcall alloc_pages, ((1228800+81920)/4096) |
| or eax, PG_GLOBAL+PG_UWR |
| and eax, [pte_valid_mask] |
| mov ecx, (1228800+81920)/4096 |
| @@: |
| stosd |
| add eax, 0x1000 |
| loop @B |
| |
| call free_kernel_space |
| jmp .ok |
| |
| align 4 |
| set_framebuffer: |
| push esi |
| push edi |
| lea esi, [ecx+FRB.pde] |
| mov eax, sys_proc |
| |
| cld |
| pushfd |
| cli |
| mov [_display.current_lfb], ecx |
| .patch_pde: |
| lea edi, [eax+PROC.pdt_0+4096-32] ;last 8 pd entries up to 32Mb framebuffer |
| mov ecx, 4 |
| rep movsd ;patch pde |
| sub esi, 16 |
| mov eax, [eax+PROC.list.next] ;next process/address space |
| cmp eax, sys_proc |
| jne .patch_pde |
| |
| bt [cpu_caps], CAPS_PGE |
| jnc .cr3_flush |
| |
| mov eax, cr4 |
| btr eax, 7 ;clear cr4.PGE |
| mov cr4, eax ;flush TLB |
| bts eax, 7 |
| mov cr4, eax ;flush TLB |
| .exit: |
| popfd |
| pop edi |
| pop esi |
| ret |
| |
| .cr3_flush: |
| mov eax, cr3 |
| mov cr3, eax ;flush TLB |
| jmp .exit |
| |
| Property changes: |
|---|
| Added: svn:eol-style |
|---|
| +native |
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| \ No newline at end of property |
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