function 'buf2d_bit_blt_alpha' can take negative coordinates in the position of the copied buffer

update function 'buf2d_bit_blt_transp'

git-svn-id: svn://kolibrios.org@2383 a494cfbc-eb01-0410-851d-a64ba20cac60

programs/develop/libraries/buf2d/trunk/about.htm

@@ -307,8 +307,9 @@ import_buf2d_lib:
 <p>22.12.10 - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> buf2d_cruve_bezier <20><> buf2d_curve_bezier.</p>
 <p>25.03.11 - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> buf2d_set_pixel.</p>
 <p>30.08.11 - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> buf2d_resize.</p>
-<p>13.09.11 - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> buf_filled_rect_by_size buf_rect_by_size, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.</p>
+<p>13.09.11 - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> buf2d_filled_rect_by_size buf2d_rect_by_size, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.</p>
 <p>22.09.11 - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> buf2d_line_sm <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>.</p>
-<p>20.02.12 - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> buf_filled_rect_by_size <20> buf_rect_by_size <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> buf2d_line <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> 1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>), <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> 8 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.</p>
+<p>20.02.12 - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> buf2d_filled_rect_by_size <20> buf2d_rect_by_size <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> buf2d_line <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> 1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>), <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> 8 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.</p>
+<p>23.02.12 - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> buf2d_bit_blt_alpha <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> buf2d_bit_blt_transp<p/>
 </body>
 </html>

programs/develop/libraries/buf2d/trunk/buf2d.asm

@@ -2111,6 +2111,19 @@ proc buf_bit_blt_transp, buf_destination:dword, coord_x:dword, coord_y:dword, bu
 	jne .copy_end ;<3B><>ଠ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD>ন<EFBFBD><E0A6A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 		mov ebx,buf2d_h ;ebx - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>᭮<EFBFBD><E1ADAE><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 		mov ecx,[coord_y]
+		cmp ecx,0
+		jge @f
+			;<3B>᫨ <20><><EFBFBD>न<EFBFBD><E0A4A8><EFBFBD><EFBFBD> coord_y<0 (1-<2D> <20><><EFBFBD><EFBFBD>ன<EFBFBD><E0AEA9>)
+			add edx,ecx ;㬥<><E3ACA5>蠥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㥬<EFBFBD><E3A5AC> <20><><EFBFBD>⨭<EFBFBD><E2A8AD>
+			cmp edx,0
+			jle .copy_end ;<3B>᫨ <20><><EFBFBD><EFBFBD><EFBFBD>㥬<EFBFBD><E3A5AC> <20><><EFBFBD><EFBFBD>ࠦ<EFBFBD><E0A0A6><EFBFBD><EFBFBD> <20><>室<EFBFBD><E5AEA4><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD>孥<EFBFBD> <20>࠭<EFBFBD>楩 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (coord_y<0 <20> |coord_y|>buf_source.h)
+			neg ecx
+			;inc ecx
+			imul ecx,eax
+			shl ecx,2 ;<3B><> 4 <20><><EFBFBD><EFBFBD> <20><> <20><><EFBFBD>ᥫ<EFBFBD>
+			add esi,ecx ;ᤢ<><E1A4A2><EFBFBD><EFBFBD><EFBFBD> 㪠<><E3AAA0>⥫<EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>㥬묨 <20><><EFBFBD><EFBFBD>묨, <20> <20><><EFBFBD>⮬ <20>ய<EFBFBD>襭<EFBFBD><E8A5AD> <20><><EFBFBD><EFBFBD><EFBFBD>
+			xor ecx,ecx ;<3B><><EFBFBD><EFBFBD><EFBFBD>塞 <20><><EFBFBD>न<EFBFBD><E0A4A8><EFBFBD><EFBFBD> coord_y
+		@@:
 		cmp ecx,ebx
 		jge .copy_end ;<3B>᫨ <20><><EFBFBD>न<EFBFBD><E0A4A8><EFBFBD><EFBFBD> 'y' <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 		add ecx,edx ;ecx - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>न<EFBFBD><E0A4A8><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㥬<EFBFBD><E3A5AC> <20><><EFBFBD>⨭<EFBFBD><E2A8AD>
@@ -2121,8 +2134,15 @@ proc buf_bit_blt_transp, buf_destination:dword, coord_x:dword, coord_y:dword, bu
 		@@:
 		mov ebx,buf2d_w
 		mov ecx,ebx ;ecx <20>ᯮ<EFBFBD><E1AFAE><EFBFBD>㥬 <20><><EFBFBD> <20>६<EFBFBD><E0A5AC><EFBFBD><EFBFBD><EFBFBD> 楫<><E6A5AB>
+		cmp [coord_y],0
+		jg .end_otr_c_y
+			;<3B>᫨ <20><><EFBFBD>न<EFBFBD><E0A4A8><EFBFBD><EFBFBD> coord_y<=0 (2-<2D> <20><><EFBFBD><EFBFBD>ன<EFBFBD><E0AEA9>)
+			mov ecx,[coord_x]
+			jmp @f
+		.end_otr_c_y:
 		imul ecx,[coord_y]
 		add ecx,[coord_x]
+		@@:
 		lea ecx,[ecx+ecx*2]
 		add ecx,buf2d_data
 		sub ebx,eax
@@ -2226,7 +2246,7 @@ combine_colors_2:
 align 4
 proc buf_bit_blt_alpha, buf_destination:dword, coord_x:dword, coord_y:dword, buf_source:dword, color:dword
 	locals
-		right_bytes dd ?
+		lost_bytes dd ? ;<3B><>᫮ <20><><EFBFBD><EFBFBD><EFBFBD>ﭭ<EFBFBD><EFADAD> <20><><EFBFBD>⮢ <20> <20><>ப<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㥬<EFBFBD><E3A5AC><EFBFBD> <20><><EFBFBD><EFBFBD>ࠦ<EFBFBD><E0A0A6><EFBFBD> (<28><><EFBFBD> <20><><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>)
 		dest_w_bytes dd ? ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢮ <20><><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>ਥ<EFBFBD><E0A8A5><EFBFBD><EFBFBD><EFBFBD> <20><> <20><>ਭ<EFBFBD> - <20><>ਭ<EFBFBD> <20><>⠢<EFBFBD>塞<EFBFBD><EFA5AC> <20><><EFBFBD>⨭<EFBFBD><E2A8AD>
 	endl
 	pushad
@@ -2234,7 +2254,7 @@ proc buf_bit_blt_alpha, buf_destination:dword, coord_x:dword, coord_y:dword, buf
 	mov edi,[buf_source]
 	cmp buf2d_bits,8
 	jne .error1 ;<3B><>ଠ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD>ন<EFBFBD><E0A6A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
-	mov eax,buf2d_w
+	mov eax,buf2d_w ;<3B><>ਭ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㥬<EFBFBD><E3A5AC> <20><><EFBFBD>⨭<EFBFBD><E2A8AD>
 	mov edx,buf2d_h ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㥬<EFBFBD><E3A5AC> <20><><EFBFBD>⨭<EFBFBD><E2A8AD>
 	mov esi,buf2d_data ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㥬<EFBFBD><E3A5AC> <20><><EFBFBD>⨭<EFBFBD><E2A8AD>
 
@@ -2250,6 +2270,8 @@ proc buf_bit_blt_alpha, buf_destination:dword, coord_x:dword, coord_y:dword, buf
 		jge @f
 			;<3B>᫨ <20><><EFBFBD>न<EFBFBD><E0A4A8><EFBFBD><EFBFBD> coord_y<0 (1-<2D> <20><><EFBFBD><EFBFBD>ன<EFBFBD><E0AEA9>)
 			add edx,ecx ;㬥<><E3ACA5>蠥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㥬<EFBFBD><E3A5AC> <20><><EFBFBD>⨭<EFBFBD><E2A8AD>
+			cmp edx,0
+			jle .copy_end ;<3B>᫨ <20><><EFBFBD><EFBFBD><EFBFBD>㥬<EFBFBD><E3A5AC> <20><><EFBFBD><EFBFBD>ࠦ<EFBFBD><E0A0A6><EFBFBD><EFBFBD> <20><>室<EFBFBD><E5AEA4><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD>孥<EFBFBD> <20>࠭<EFBFBD>楩 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (coord_y<0 <20> |coord_y|>buf_source.h)
 			neg ecx
 			;inc ecx
 			imul ecx,eax
@@ -2267,8 +2289,8 @@ proc buf_bit_blt_alpha, buf_destination:dword, coord_x:dword, coord_y:dword, buf
 		mov ebx,buf2d_w
 		mov ecx,[coord_y] ;ecx <20>ᯮ<EFBFBD><E1AFAE><EFBFBD>㥬 <20><><EFBFBD> <20>६<EFBFBD><E0A5AC><EFBFBD><EFBFBD><EFBFBD> 楫<><E6A5AB>
 		cmp ecx,0
-		jge .end_otr_c_y
+		jg .end_otr_c_y
-			;<3B>᫨ <20><><EFBFBD>न<EFBFBD><E0A4A8><EFBFBD><EFBFBD> coord_y<0 (2-<2D> <20><><EFBFBD><EFBFBD>ன<EFBFBD><E0AEA9>)
+			;<3B>᫨ <20><><EFBFBD>न<EFBFBD><E0A4A8><EFBFBD><EFBFBD> coord_y<=0 (2-<2D> <20><><EFBFBD><EFBFBD>ன<EFBFBD><E0AEA9>)
 			mov ecx,[coord_x]
 			jmp @f
 		.end_otr_c_y:
@@ -2276,19 +2298,33 @@ proc buf_bit_blt_alpha, buf_destination:dword, coord_x:dword, coord_y:dword, buf
 		add ecx,[coord_x]
 		@@:
 		lea ecx,[ecx+ecx*2]
-		add ecx,buf2d_data
+		add ecx,buf2d_data ;buf2d_data <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>᭮<EFBFBD><E1ADAE><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
-		sub ebx,eax
+		sub ebx,eax ;ebx - <20><>ਭ<EFBFBD> <20>᭮<EFBFBD><E1ADAE><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ਭ<EFBFBD> <20><><EFBFBD>㥬<EFBFBD><E3A5AC><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 		mov edi,ecx ;edi 㪠<><E3AAA0>⥫<EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20>㤠 <20>㤥<EFBFBD> <20>ந<EFBFBD><E0AEA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
 
-	mov [right_bytes],0
+	mov dword[lost_bytes],0
 	mov ecx,[coord_x]
+	cmp ecx,0
+	jge @f
+		neg ecx
+		;inc ecx
+		cmp eax,ecx ;eax - <20><>ਭ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㥬<EFBFBD><E3A5AC> <20><><EFBFBD>⨭<EFBFBD><E2A8AD>
+		jle .copy_end ;<3B>᫨ <20><><EFBFBD><EFBFBD><EFBFBD>㥬<EFBFBD><E3A5AC> <20><><EFBFBD><EFBFBD>ࠦ<EFBFBD><E0A0A6><EFBFBD><EFBFBD> <20><>室<EFBFBD><E5AEA4><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD> <20>࠭<EFBFBD>楩 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (coord_x<0 <20> |coord_x|>buf_source.w)
+		add [lost_bytes],ecx
+		sub eax,ecx ;㪮<><E3AAAE>稢<EFBFBD><E7A8A2><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㥬<EFBFBD><E3A5AC> <20><>ப<EFBFBD>
+		add ebx,ecx ;㤫<><E3A4AB><EFBFBD>塞 <20><>ப<EFBFBD> <20><><EFBFBD> ᤢ<><E1A4A2><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>⨭<EFBFBD><E2A8AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+		add esi,ecx
+		lea ecx,[ecx+ecx*2]
+		add edi,ecx ;edi 㪠<><E3AAA0>⥫<EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20>㤠 <20>㤥<EFBFBD> <20>ந<EFBFBD><E0AEA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
+		xor ecx,ecx
+	@@:
 	cmp ecx,ebx
-	jl @f
+	jle @f
 		sub ecx,ebx
 		sub eax,ecx ;㪮<><E3AAAE>稢<EFBFBD><E7A8A2><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㥬<EFBFBD><E3A5AC> <20><>ப<EFBFBD>
 		add ebx,ecx ;㤫<><E3A4AB><EFBFBD>塞 <20><>ப<EFBFBD> <20><><EFBFBD> ᤢ<><E1A4A2><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>⨭<EFBFBD><E2A8AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 		;ecx - <20><>᫮ <20><><EFBFBD>ᥫ<EFBFBD><E1A5AB> <20> 1-<2D> <20><>ப<EFBFBD> <20><><EFBFBD>⨭<EFBFBD><E2A8AD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>뫠<EFBFBD><EBABA0><EFBFBD> <20><> <20>ࠢ<EFBFBD><E0A0A2> <20><><EFBFBD>஭<EFBFBD>
-		mov [right_bytes],ecx
+		add [lost_bytes],ecx
 	@@:
 
 	lea ebx,[ebx+ebx*2] ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢮ <20><><EFBFBD><EFBFBD> <20> 1-<2D> <20><>ப<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>᫮ <20><><EFBFBD><EFBFBD> <20> 1-<2D> <20><>ப<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㥬<EFBFBD><E3A5AC> <20><><EFBFBD>⨭<EFBFBD><E2A8AD>
@@ -2296,7 +2332,7 @@ proc buf_bit_blt_alpha, buf_destination:dword, coord_x:dword, coord_y:dword, buf
 	mov ebx,[color]
 
 	cld
-	cmp [right_bytes],0
+	cmp dword[lost_bytes],0
 	jg .copy_1
 	.copy_0: ;<3B><><EFBFBD><EFBFBD>⮥ <20><><EFBFBD><EFBFBD>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
 		mov ecx,eax
@@ -2310,7 +2346,7 @@ proc buf_bit_blt_alpha, buf_destination:dword, coord_x:dword, coord_y:dword, buf
 		cmp edx,0
 		jg .copy_0
 	jmp .copy_end
-	.copy_1: ;<3B><> <20><><EFBFBD><EFBFBD>⮥ <20><><EFBFBD><EFBFBD>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> (<28><><EFBFBD>⨭<EFBFBD><E2A8AD> <20>뫠<EFBFBD><EBABA0><EFBFBD> <20><> <20>ࠢ<EFBFBD><E0A0A2> <20><><EFBFBD>஭<EFBFBD>)
+	.copy_1: ;<3B><> <20><><EFBFBD><EFBFBD>⮥ <20><><EFBFBD><EFBFBD>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> (<28><><EFBFBD>⨭<EFBFBD><E2A8AD> <20>뫠<EFBFBD><EBABA0><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD> <20>/<2F><><EFBFBD> <20>ࠢ<EFBFBD><E0A0A2> <20><><EFBFBD>஭<EFBFBD>)
 		mov ecx,eax
 		@@:
 			call combine_colors_2
@@ -2318,7 +2354,7 @@ proc buf_bit_blt_alpha, buf_destination:dword, coord_x:dword, coord_y:dword, buf
 			inc esi
 			loop @b
 		add edi,[dest_w_bytes]
-		add esi,[right_bytes] ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>塞 <20><><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>뫠<EFBFBD><EBABA0><EFBFBD> <20><> <20>ࠢ<EFBFBD><E0A0A2> <20>࠭<EFBFBD><E0A0AD><EFBFBD>
+		add esi,[lost_bytes] ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>塞 <20><><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>뫠<EFBFBD><EBABA0><EFBFBD> <20><> <20>ࠢ<EFBFBD><E0A0A2> <20>࠭<EFBFBD><E0A0AD><EFBFBD>
 		dec edx
 		cmp edx,0
 		jg .copy_1