| 256,8 → 256,8 |
|---|
| ; ebx = y |
| imul ebx, [BytesPerScanLine] ; ebx = y * y multiplier |
| lea edi, [ebx+eax*4] ; edi = x*4+(y*y multiplier) |
| ; mov eax, [esp+32-8+4] ; eax = color |
| mov [LFB_BASE+edi], ecx |
| mov eax, [esp+32-8+4] ; eax = color |
| mov [LFB_BASE+edi], eax |
| ret |
| |
| |
| 277,6 → 277,7 |
|---|
| |
| align 4 |
| __sys_draw_line: |
| ; inc [mouse_pause] |
| call [_display.disable_mouse] |
| |
| ; draw a line |
| 305,7 → 306,6 |
|---|
| push eax ; save x1 |
| push ebx ; save y1 |
| push esi ; save x2 |
| |
| push ebp ; save y2 |
| ; checking x-axis... |
| sub esi, eax ; esi = x2-x1 |
| 408,9 → 408,6 |
|---|
| cmp ebx, [Screen_Max_Y] |
| jge .out |
| push eax ebp esi ebx edx |
| bt ecx, 24 ; color inversion check |
| rcl edi,1 ; forced graphics check |
| |
| mov ebp, [_display.width] ; ebp = screen co-ords base |
| imul ebp, ebx |
| add ebp, [_WinMapAddress] |
| 428,47 → 425,29 |
|---|
| mov edx, [Screen_Max_X] |
| |
| .draw: ; -- the line --- |
| jmp dword [hline.drawtable + edi*4] ; a coolhack (C) Serge |
| |
| align 4 |
| .invert_color: |
| mov ecx, [ebx+eax*4] |
| xor ecx, 0x00FFFFFF |
| or ecx, 0x01000000 ; keep bit[24] high ! |
| align 4 |
| .check_overlap: |
| movzx esi, byte [ebp+eax] ; check whether the line covered by other windows |
| test edi,1 ; forced ? |
| jnz .checked |
| ; check whether the line covered by other windows |
| movzx esi, byte [ebp+eax] |
| cmp esi, [CURRENT_TASK] |
| je .putpixel |
| jmp .nextpixel |
| align 4 |
| .invert_force: |
| jne .nextpixel |
| .checked: |
| test ecx,0x01000000 |
| jz .noneg |
| mov ecx, [ebx+eax*4] |
| xor ecx, 0x00FFFFFF |
| or ecx, 0x01000000 ; keep bit[24] high ! |
| align 4 |
| .putpixel: |
| not ecx |
| and ecx, 0x01FFFFFF ; keep bit[24] high ! |
| .noneg: |
| mov [ebx+eax*4], ecx |
| align 4 |
| .nextpixel: |
| inc eax |
| cmp eax, edx |
| ja .exit |
| jmp dword [hline.drawtable + edi*4] ; close the loop |
| |
| jle .draw |
| .exit: |
| shr edi, 1 ; restore the 'force' bit |
| pop edx ebx esi ebp eax |
| .out: |
| ret |
| align 4 |
| .drawtable: |
| dd .check_overlap ; general case |
| dd .invert_color |
| dd .putpixel ; force to draw it |
| dd .invert_force |
| |
| |
| align 4 |
| vline: |
| ; --------- draw a vertical line ------------ |
| 502,47 → 481,31 |
|---|
| jb .draw |
| mov edx, [Screen_Max_Y] ; to prevent off-screen drawing |
| |
| .draw: |
| jmp dword [vline.drawtable + edi*4] |
| align 4 |
| .invert_color: |
| mov ecx, [eax] |
| xor ecx, 0x00FFFFFF |
| or ecx, 0x01000000 |
| align 4 |
| .check_overlap: |
| .draw: ; (vertical line itself) |
| test edi,1 ; forced ? |
| jnz .checked |
| ; check whether the line covered by other windows |
| movzx esi, byte [ebp] |
| cmp esi, [CURRENT_TASK] |
| je .putpixel |
| jmp .nextpixel |
| |
| align 4 |
| .invert_force: |
| jne .nextpixel |
| .checked: |
| test ecx,0x01000000 |
| jz .noneg |
| mov ecx, [eax] |
| xor ecx, 0x00FFFFFF |
| or ecx, 0x01000000 |
| align 4 |
| .putpixel: |
| not ecx |
| and ecx, 0x01FFFFFF ; keep bit[24] high ! |
| .noneg: |
| mov [eax], ecx |
| align 4 |
| .nextpixel: |
| add eax, [BytesPerScanLine] |
| add ebp, [_display.width] |
| inc ebx |
| cmp ebx, edx |
| ja .exit |
| jmp dword [vline.drawtable + edi*4] |
| jle .draw |
| .exit: |
| shr edi, 1 |
| pop edx ebx esi ebp eax |
| .out: |
| ret |
| align 4 |
| .drawtable: |
| dd .check_overlap ; general case |
| dd .invert_color |
| dd .putpixel ; force to draw it |
| dd .invert_force |
| |
| |
| ;************************************************* |
| 1059,6 → 1022,3 |
|---|
| paddb mm4, mm1 |
| movd eax, mm4 |
| ret |
| diff16 "VESA2 code end ",0,$ |
| diff16 "VESA2 code size",get_pixel,$ |
| |