| 0,0 → 1,548 |
|---|
| |
| LOAD_FROM_FILE equ 0 |
| LOAD_FROM_MEM equ 1 |
| LOAD_INDIRECT equ 2 |
| LOAD_SYSTEM equ 3 |
| |
| align 4 |
| proc vesa_init_cursor stdcall, dst:dword, src:dword |
| locals |
| rBase dd ? |
| pQuad dd ? |
| pBits dd ? |
| pAnd dd ? |
| width dd ? |
| height dd ? |
| counter dd ? |
| endl |
| |
| mov esi, [src] |
| add esi,[esi+18d] |
| |
| mov eax,esi |
| add eax, [esi] |
| mov [pQuad],eax |
| add eax,64 |
| mov [pBits],eax |
| add eax, 0x200 |
| mov [pAnd],eax |
| mov eax,[esi+4] |
| mov [width],eax |
| mov ebx,[esi+8] |
| shr ebx,1 |
| mov [height],ebx |
| |
| mov edi, [dst] |
| add edi, 32*31*4 |
| mov [rBase],edi |
| |
| mov esi,[pAnd] |
| mov ebx, [pBits] |
| .l1: |
| mov eax, [esi] |
| bswap eax |
| mov [counter], 16 |
| @@: |
| xor edx, edx |
| shl eax,1 |
| setc dl |
| dec edx |
| |
| mov ecx, [ebx] |
| and ecx, 0xF0 |
| shr ecx, 2 |
| add ecx, [pQuad] |
| mov ecx, [ecx] |
| and ecx, edx |
| and edx, 0xFF000000 |
| or edx, ecx |
| mov [edi], edx |
| |
| xor edx, edx |
| shl eax,1 |
| setc dl |
| dec edx |
| |
| mov ecx, [ebx] |
| and ecx, 0x0F |
| shl ecx, 2 |
| add ecx, [pQuad] |
| mov ecx, [ecx] |
| and ecx, edx |
| and edx, 0xFF000000 |
| or edx, ecx |
| mov [edi+4], edx |
| |
| inc ebx |
| add edi, 8 |
| dec [counter] |
| jnz @B |
| |
| add esi, 4 |
| mov edi,[rBase] |
| sub edi,128 |
| mov [rBase],edi |
| sub [height],1 |
| jnz .l1 |
| ret |
| endp |
| |
| align 4 |
| proc alloc_cursor |
| |
| pushfd |
| cli |
| mov ebx, [cursor_start] |
| mov ecx, [cursor_end] |
| .l1: |
| bsf eax,[ebx]; |
| jnz .found |
| add ebx,4 |
| cmp ebx, ecx |
| jb .l1 |
| popfd |
| xor eax,eax |
| ret |
| .found: |
| btr [ebx], eax |
| mov [cursor_start],ebx |
| sub ebx, cursor_map |
| shl ebx, 3 |
| add eax,ebx |
| shl eax,3 |
| lea eax,[cursors+eax+eax*2] |
| popfd |
| ret |
| endp |
| |
| align 4 |
| proc create_cursor |
| locals |
| h_cur dd ? |
| endl |
| |
| call alloc_cursor |
| test eax, eax |
| jz .fail |
| |
| mov [h_cur], eax |
| mov edi, eax |
| |
| xor ebx, ebx |
| |
| mov [edi+CURSOR.magic], 'CURS' |
| mov [edi+CURSOR.size], CURSOR_SIZE |
| mov [edi+CURSOR.pid], ebx |
| mov [edi+CURSOR.hot_x], ebx |
| mov [edi+CURSOR.hot_y], ebx |
| |
| stdcall kernel_alloc, dword 0x2000 |
| test eax, eax |
| jz .fail |
| |
| mov ebx, eax |
| mov eax, [h_cur] |
| mov [eax+CURSOR.base], ebx |
| ret |
| .fail: |
| ret |
| endp |
| |
| align 4 |
| proc set_cursor stdcall, hcursor:dword |
| mov eax, [hcursor] |
| mov ebx, [CURRENT_TASK] |
| shl ebx, 8 |
| xchg eax, [ebx+PROC_BASE+APPDATA.cursor] |
| ret |
| endp |
| |
| align 4 |
| proc load_cursor stdcall, src:dword, flags:dword |
| locals |
| handle dd ? |
| endl |
| |
| movzx eax, word [flags] |
| cmp eax, LOAD_FROM_FILE |
| jne .from_mem |
| |
| stdcall load_file, [src] |
| test eax, eax |
| jz .exit |
| mov [src], eax |
| |
| call create_cursor |
| test eax, eax |
| jz .fail |
| |
| mov [handle], eax |
| mov esi, [src] |
| movzx ebx, word [esi+10] |
| movzx ecx, word [esi+12] |
| mov [eax+CURSOR.hot_x], ebx |
| mov [eax+CURSOR.hot_y], ecx |
| |
| stdcall vesa_init_cursor, [eax+CURSOR.base], esi |
| stdcall kernel_free, [src] |
| mov eax, [handle] |
| ret |
| |
| .from_mem: |
| cmp eax, LOAD_FROM_MEM |
| jne .indirect |
| |
| call create_cursor |
| test eax, eax |
| jz .exit |
| |
| mov [handle], eax |
| mov esi, [src] |
| movzx ebx, word [esi+10] |
| movzx ecx, word [esi+12] |
| mov [eax+CURSOR.hot_x], ebx |
| mov [eax+CURSOR.hot_y], ecx |
| |
| stdcall vesa_init_cursor, [eax+CURSOR.base], [src] |
| mov eax, [handle] |
| ret |
| |
| .indirect: |
| cmp eax, LOAD_INDIRECT |
| jne .fail |
| |
| call create_cursor |
| test eax, eax |
| jz .exit |
| |
| movzx edx, byte [flags+2] |
| movzx ebx, byte [flags+3] |
| mov [eax+CURSOR.hot_x], ebx |
| mov [eax+CURSOR.hot_y], edx |
| |
| mov edi, [eax+CURSOR.base] |
| mov esi, [src] |
| mov ecx, 1024 |
| cld |
| rep movsd |
| ret |
| .fail: |
| mov ebx, [src] |
| stdcall kernel_free, ebx |
| .exit: |
| xor eax, eax |
| ret |
| endp |
| |
| align 4 |
| proc init_cursors |
| movzx eax, byte [ScreenBPP] |
| mov ebx, [SCR_BYTES_PER_LINE] |
| cmp eax, 32 |
| jne @F |
| sub ebx, 128 |
| jmp .init |
| @@: |
| cmp eax, 24 |
| jne .fail |
| sub ebx, 96 |
| .init: |
| mov [cur_def_interl], ebx |
| |
| xor eax, eax |
| mov edi, cursors |
| mov ecx, CURSOR_SIZE*16 |
| cld |
| rep stosd |
| |
| not eax |
| mov [cursor_map], eax |
| mov [cursor_map+4], eax |
| mov edx, cursor_map |
| mov [cursor_start], edx |
| add edx, 4 |
| mov [cursor_end], edx |
| |
| stdcall load_cursor, def_arrow, dword LOAD_FROM_MEM |
| mov [def_cursor], eax |
| |
| mov ecx, [SCR_X_SIZE] |
| mov edx, [SCR_Y_SIZE] |
| inc ecx |
| inc edx |
| mov [scr_width], ecx |
| mov [scr_height], edx |
| |
| movzx ebx, byte [ScreenBPP] |
| cmp ebx, 32 |
| jne @F |
| |
| mov dword [set_hw_cursor], cursor_32 |
| mov dword [hw_restore], restore_32 |
| ret |
| @@: |
| mov dword [set_hw_cursor], cursor_24 |
| mov dword [hw_restore], restore_24 |
| ret |
| .fail: |
| xor eax, eax |
| mov dword [set_hw_cursor], eax |
| mov dword [hw_restore], eax |
| ret |
| endp |
| |
| align 4 |
| proc restore_24 stdcall, x:dword, y:dword |
| locals |
| w dd ? |
| endl |
| |
| mov edi, [cur_saved_base] |
| mov edx, [cur_saved_h] |
| mov ebx, [cur_saved_interl] |
| |
| mov esi, cur_saved_data |
| @@: |
| mov ecx, [cur_saved_w] |
| lea ecx, [ecx+ecx*2] |
| rep movsb |
| add edi, ebx |
| dec edx |
| jnz @B |
| ret |
| endp |
| |
| align 4 |
| proc restore_32 stdcall, x:dword, y:dword |
| locals |
| w dd ? |
| endl |
| |
| mov edi, [cur_saved_base] |
| mov edx, [cur_saved_h] |
| mov ebx, [cur_saved_interl] |
| |
| mov esi, cur_saved_data |
| @@: |
| mov ecx, [cur_saved_w] |
| rep movsd |
| add edi, ebx |
| dec edx |
| jnz @B |
| ret |
| endp |
| |
| align 4 |
| proc cursor_24 stdcall, hcursor:dword, x:dword, y:dword |
| locals |
| w dd ? |
| h dd ? |
| st dd ? |
| _dx dd ? |
| _dy dd ? |
| endl |
| |
| mov esi, [hcursor] |
| mov ecx, [x] |
| mov eax, [y] |
| mov ebx, [BytesPerScanLine] |
| |
| xor edx, edx |
| sub ecx, [esi+CURSOR.hot_x] |
| mov [x], ecx |
| sets dl |
| dec edx |
| and ecx, edx ;clip x to 0<=x |
| mov edi, ecx |
| sub edi, [x] |
| mov [_dx], edi |
| |
| xor edx, edx |
| sub eax, [esi+CURSOR.hot_y] |
| mov [y], eax |
| sets dl |
| dec edx |
| and eax, edx ;clip y to 0<=y |
| mov edi, eax |
| sub edi, [y] |
| mov [_dy], edi |
| |
| mul ebx |
| lea esi, [ecx+ecx*2] |
| add esi, [LFBAddress] |
| add esi, eax |
| mov [cur_saved_base],esi |
| |
| mov edi, [scr_width] |
| mov edx, [scr_height] |
| mov eax, 32 |
| |
| sub edi, ecx |
| cmp edi, eax |
| cmovg edi, eax |
| sub edi, [_dx] |
| |
| sub edx, [y] |
| cmp edx, eax |
| cmovg edx, eax |
| sub edx, [_dy] |
| |
| mov [w], edi |
| mov [h], edx |
| mov [cur_saved_w], edi |
| mov [cur_saved_h], edx |
| |
| sub eax, edi |
| lea eax, [eax+eax*2] |
| lea edi, [edi+edi*2] |
| sub ebx, edi |
| mov [cur_saved_interl], ebx |
| |
| mov edi, cur_saved_data |
| @@: |
| mov ecx, [w] |
| lea ecx, [ecx+ecx*2] |
| rep movsb |
| add esi, ebx |
| dec edx |
| jnz @B |
| |
| ;draw cursor |
| mov edx, eax |
| mov edi, [cur_saved_base] |
| mov eax, [_dy] |
| shl eax, 5 |
| add eax, [_dx] |
| shl eax, 2 |
| |
| mov esi, [hcursor] |
| mov esi, [esi+CURSOR.base] |
| add esi, eax |
| .row: |
| mov ecx, [w] |
| .pix: |
| lodsd |
| test eax, 0xFF000000 |
| jz @F |
| |
| mov word [edi], ax |
| shr eax, 16 |
| mov [edi+2],al |
| @@: |
| add edi, 3 |
| dec ecx |
| jnz .pix |
| |
| add esi, edx |
| add edi, ebx |
| dec [h] |
| jnz .row |
| ret |
| endp |
| |
| align 4 |
| proc cursor_32 stdcall, hcursor:dword, x:dword, y:dword |
| locals |
| w dd ? |
| h dd ? |
| st dd ? |
| _dx dd ? |
| _dy dd ? |
| endl |
| |
| mov esi, [hcursor] |
| mov ecx, [x] |
| mov eax, [y] |
| mov ebx, [BytesPerScanLine] |
| |
| xor edx, edx |
| sub ecx, [esi+CURSOR.hot_x] |
| mov [x], ecx |
| sets dl |
| dec edx |
| and ecx, edx ;clip x to 0<=x |
| mov edi, ecx |
| sub edi, [x] |
| mov [_dx], edi |
| |
| xor edx, edx |
| sub eax, [esi+CURSOR.hot_y] |
| mov [y], eax |
| sets dl |
| dec edx |
| and eax, edx ;clip y to 0<=y |
| mov edi, eax |
| sub edi, [y] |
| mov [_dy], edi |
| |
| mul ebx |
| lea esi, [eax+ecx*4] |
| add esi, [LFBAddress] |
| mov [cur_saved_base],esi |
| |
| mov edi, [scr_width] |
| mov edx, [scr_height] |
| mov eax, 32 |
| |
| sub edi, ecx |
| cmp edi, eax |
| cmovg edi, eax |
| sub edi, [_dx] |
| |
| sub edx, [y] |
| cmp edx, eax |
| cmovg edx, eax |
| sub edx, [_dy] |
| |
| mov [w], edi |
| mov [h], edx |
| mov [cur_saved_w], edi |
| mov [cur_saved_h], edx |
| |
| sub eax, edi |
| shl eax, 2 |
| shl edi, 2 |
| sub ebx, edi |
| mov [cur_saved_interl], ebx |
| |
| mov edi, cur_saved_data |
| @@: |
| mov ecx, [w] |
| rep movsd |
| add esi, ebx |
| dec edx |
| jnz @B |
| |
| ;draw cursor |
| mov edx, eax |
| mov edi, [cur_saved_base] |
| mov eax, [_dy] |
| shl eax, 5 |
| add eax, [_dx] |
| shl eax, 2 |
| |
| mov esi, [hcursor] |
| mov esi, [esi+CURSOR.base] |
| add esi, eax |
| .row: |
| mov ecx, [w] |
| .pix: |
| lodsd |
| test eax, 0xFF000000 |
| jz @F |
| mov [edi], eax |
| @@: |
| add edi, 4 |
| dec ecx |
| jnz .pix |
| add esi, edx |
| add edi, ebx |
| dec [h] |
| jnz .row |
| ret |
| endp |
| |
| align 4 |
| def_arrow: |
| file 'arrow.cur' |
| |