WebSVN – Kolibri OS – Blame – /kernel/trunk/gui/font.inc

Rev	Author	Line No.	Line
2288	clevermous	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
5363	yogev_ezra	3	;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
2288	clevermous	4	;; Distributed under terms of the GNU General Public License ;;
		5	;; ;;
		6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		7
		8	$Revision: 6899 $
		9
2536	mario79	10	dtext:
5665	Pathoswith	11	; edx -> string
		12	; esi = number of characters
		13	; ebx = output coordinates XXXXYYYY h
		14	; ecx = char color and flags flRRGGBB h
		15	; fl = ZBFFRSSS b
		16	; Z=1: edx -> zero terminated string, esi = ?
		17	; B=1: fill background with color eax
		18	; R=1: edi -> user area for redirect
5867	pathoswith	19	; FF=3: UTF-8 8x16, FF=2: UTF-16LE 8x16
		20	; FF=1: cp866 8x16, FF=0: cp866 6x9
5665	Pathoswith	21	; SSS = (font multiplier)-1
		22	; edi=1: force output
		23	and eax, 0xFFFFFF
		24	bt ecx, 30
		25	jc @f
2288	clevermous	26	xor eax, eax
5665	Pathoswith	27	dec eax
		28	@@:
		29	pushd 0 0 0 eax
		30	movsx eax, bx
		31	sar ebx, 16
		32	push eax ebx edi
		33	bt ecx, 27
		34	jc .redirect
		35	mov ebp, [_display.width]
		36	xor edi, edi
2288	clevermous	37	jmp @f
6899	pathoswith	38
5839	pathoswith	39	.ret:
		40	add esp, 28
		41	ret
6899	pathoswith	42
5665	Pathoswith	43	.redirect:
		44	mov ebp, [edi]
		45	add edi, 8
2288	clevermous	46	@@:
5665	Pathoswith	47	shl ebp, 2
		48	imul eax, ebp
		49	shl ebx, 2
		50	add eax, ebx
		51	js .ret
5921	pathoswith	52	add edi, eax
5665	Pathoswith	53	mov eax, ecx
		54	mov ebx, ecx
		55	test ecx, ecx
		56	jns @f
		57	mov esi, 256
		58	@@:
		59	shr ecx, 24
		60	and cl, 7
		61	inc ecx
		62	push ebp ecx esi
5921	pathoswith	63	mov esi, edx
5665	Pathoswith	64	or eax, 0xFF000000
		65	bt ebx, 27
		66	jc .bufferReady
		67	mov eax, 9
5867	pathoswith	68	test ebx, 0x30000000
		69	jz @f
5665	Pathoswith	70	add eax, 7
		71	@@:
		72	imul eax, ecx
		73	mov [esp+32], eax
		74	imul ebp, eax
		75	stdcall kernel_alloc, ebp
		76	mov ecx, ebp
		77	shr ecx, 2
		78	mov [esp+36], eax
		79	sub edi, eax
		80	mov edx, eax
		81	mov eax, [esp+24]
		82	cmp eax, -1
5921	pathoswith	83	jnz @f
5665	Pathoswith	84	mov [esp+28], edi
5921	pathoswith	85	@@:
5665	Pathoswith	86	mov edi, edx
		87	rep stosd
		88	mov edi, edx
		89	mov eax, ebx
		90	and eax, 0xFFFFFF
		91	.bufferReady:
		92	mov ebp, eax
6899	pathoswith	93	mov eax, [esp+8]
		94	shr eax, 2
		95	sub eax, [esp+16]
		96	shr eax, 3
5665	Pathoswith	97	xor edx, edx
6899	pathoswith	98	div dword[esp+4]
		99	mov ecx, [esp]
		100	cmp eax, ecx
		101	jnc @f
		102	mov [esp], eax
		103	@@:
		104	xor edx, edx
5665	Pathoswith	105	bt ebx, 29
5867	pathoswith	106	jc @f
5665	Pathoswith	107	bt ebx, 28
5867	pathoswith	108	jc .draw866toUni
6899	pathoswith	109	lea eax, [eax*4+eax]
		110	shr eax, 2
		111	inc eax
		112	mov [esp], ecx
		113	cmp eax, ecx
		114	jnc .draw866
		115	mov [esp], eax
5867	pathoswith	116	jmp .draw866
6899	pathoswith	117
5867	pathoswith	118	@@:
		119	bt ebx, 28
5665	Pathoswith	120	jc .drawUTF8
2536	mario79	121
5921	pathoswith	122	; ebp = font color
		123	; esi -> string
		124	; edi -> buffer
		125
5839	pathoswith	126	; Stack map:
5665	Pathoswith	127	; char counter +0
		128	fontMultiplier = 4
		129	widthX = 8
		130	; edi +12
		131	; X +16
		132	; Y +20
		133	; background +24
		134	deltaToScreen = 28
		135	; temp buffer height +32
5839	pathoswith	136	; temp buffer pointer +36
2536	mario79	137
5665	Pathoswith	138	.drawUTF16:
		139	dec dword [esp]
		140	js .done
5921	pathoswith	141	movzx ebx, word [esi]
5665	Pathoswith	142	test ebx, ebx
		143	jz .done
		144	inc esi
		145	inc esi
		146	cmp bx, 1419
		147	jc @f
		148	xor ebx, ebx
2536	mario79	149	@@:
5665	Pathoswith	150	pushd esi edi 16
		151	shl ebx, 4
		152	add ebx, fontUni
		153	mov esi, [esp+12+fontMultiplier]
		154	call drawChar
		155	imul esi, 8*4
		156	pop edi
		157	pop edi
		158	add edi, esi
		159	pop esi
		160	jmp .drawUTF16
5839	pathoswith	161
5665	Pathoswith	162	.drawUTF8:
		163	dec dword [esp]
		164	js .done
6462	pathoswith	165	xor eax, eax
		166	call utf8to16
6472	pathoswith	167	test eax, eax
5665	Pathoswith	168	jz .done
6462	pathoswith	169	cmp eax, 1419
		170	jc @f
		171	xor eax, eax
5665	Pathoswith	172	@@:
6462	pathoswith	173	shl eax, 4
		174	lea ebx, [eax+fontUni]
5665	Pathoswith	175	pushd esi edi 16
		176	mov esi, [esp+12+fontMultiplier]
		177	call drawChar
		178	imul esi, 8*4
		179	pop edi
		180	pop edi
		181	add edi, esi
		182	pop esi
		183	jmp .drawUTF8
5839	pathoswith	184
5665	Pathoswith	185	.draw866:
		186	dec dword [esp]
		187	js .done
5921	pathoswith	188	movzx ebx, byte [esi]
5665	Pathoswith	189	test ebx, ebx
		190	jz .done
		191	inc esi
		192	pushd esi edi 9
		193	lea ebx, [ebx*8+ebx+font1]
		194	mov esi, [esp+12+fontMultiplier]
		195	call drawChar
		196	imul esi, 6*4
		197	pop edi
		198	pop edi
		199	add edi, esi
		200	pop esi
		201	jmp .draw866
5839	pathoswith	202
5867	pathoswith	203	.draw866toUni:
		204	dec dword [esp]
		205	js .done
5921	pathoswith	206	movzx eax, byte [esi]
5867	pathoswith	207	test eax, eax
		208	jz .done
		209	call ansi2uni_char
		210	shl eax, 4
		211	lea ebx, [eax+fontUni]
		212	inc esi
		213	pushd esi edi 16
		214	mov esi, [esp+12+fontMultiplier]
		215	call drawChar
		216	imul esi, 8*4
		217	pop edi
		218	pop edi
		219	add edi, esi
		220	pop esi
		221	jmp .draw866toUni
		222
5665	Pathoswith	223	.done:

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(root)/kernel/trunk/gui/font.inc – Rev 6899