WebSVN – Kolibri OS – Diff – /programs/media/zsea/plugins/scaling/scaling.asm


;*****************************************************************************
; Scaling RAW image plugin - for zSea image viewer
; Copyright (c) 2009 - 2011, Marat Zakiyanov aka Mario79, aka Mario
; All rights reserved.
;
; Redistribution and use in source and binary forms, with or without
; modification, are permitted provided that the following conditions are met:
;	 * Redistributions of source code must retain the above copyright
;	   notice, this list of conditions and the following disclaimer.
;	 * Redistributions in binary form must reproduce the above copyright
;	   notice, this list of conditions and the following disclaimer in the
;	   documentation and/or other materials provided with the distribution.
;	 * Neither the name of the  nor the
;	   names of its contributors may be used to endorse or promote products
;	   derived from this software without specific prior written permission.
;
; THIS SOFTWARE IS PROVIDED BY Marat Zakiyanov ''AS IS'' AND ANY
; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
; DISCLAIMED. IN NO EVENT SHALL  BE LIABLE FOR ANY
; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;*****************************************************************************
; Scaling 32b, 24b, 16b, 8b
 
format MS COFF
 
public EXPORTS
 
section '.flat' code readable align 16
 
;include	'macros.inc'
include	'../../../../macros.inc'
;---------------------------------------------------------------------
START:
	pushad
	mov	edi,dword [esp+56]
	mov	esi,dword [esp+52]
	mov	edx,dword [esp+48]
	mov	ecx,dword [esp+44]
	mov	ebx,dword [esp+40]
	mov	eax,dword [esp+36]	
	mov [pointer],eax
	test bx,bx
	jnz  @f
	inc  bx
@@:
	ror ebx,16
	test bx,bx
	jnz  @f
	inc  bx
@@:
	rol ebx,16
	mov [new_size],ebx
	mov [start_coordinates],ecx
	mov [scaling_mode],edx
	mov [filtering],esi
	mov [background_color],edi
	mov eax,[eax+4]
	mov [image_file],eax
 
	mov  esi,[eax+28]
    add  esi,eax
	
	mov  ebx,[eax+20]
	add  ebx,eax
	mov  [palette],ebx
	
	mov ebx,[eax+12]
	mov [resolution],ebx
	cmp  ebx,32
	jne  @f
	mov  ebp,dword START.32
	jmp  .1
@@:
	cmp  ebx,24
	jne  @f
	mov  ebp,dword START.24
	jmp  .1
@@:
	cmp  ebx,16
	jne  @f
	mov  ebp,dword START.16
	jmp  .1
@@:
	cmp  ebx,15
	jne  @f
	inc  ebx
	mov  ebp,dword START.16
	jmp  .1
@@:
	cmp  ebx,8
	jne  @f
	mov  ebp,dword START.8
@@:
.1:
	shr  ebx,3
	mov  [bytes_to_pixel],ebx
	
	mov  ebx,[eax+8]
	mov  [y],ebx
	mov  ebx,[eax+4]
	mov  [x],ebx
	imul ebx,[bytes_to_pixel]
	mov  [size_x],ebx
	
	mov  eax,100
	shl  eax,12
	mov  ebx,[scaling_mode]
	test ebx,ebx
	jnz  @f
	inc  ebx
@@:
	xor  edx,edx
	div  ebx
	mov  [scaling_delta],eax
	
	call .get_memory
	cmp  [scaling_mode],0
	jne  @f
	call .scaling
	jmp  .ret_ok
@@:
	call .scaling_2	
	
;---------------------------------------------------------------------
.ret_ok:
	mcall 68,13,[area_for_x]
	mov ebx,[pointer]
	mov  eax,[raw_area]
	mov  [ebx+20],eax  ; store RAW pointer
;	movzx eax,word [new_size.x1]
;	mov [ebx+24],esi  ;eax
;	movzx eax,word [new_size.y1]
;	mov [ebx+28],eax
;	mov eax,[size_x]
;	mov [ebx+32],eax
;	mov eax,[bytes_to_pixel]
;	mov [ebx+36],eax
;	mov eax,[x]
;	mov [ebx+40],eax
;	mov eax,[y]
;	mov [ebx+44],eax
.exit:
	popad
	ret	24
;---------------------------------------------------------------------
align 4
.scaling:
	xor ecx,ecx
.y:
	xor ebx,ebx
;-------------------------
.x:
	call ebp
	inc  ebx
	cmp  bx,[new_size.x1]
	jb   .x
;-------------------------
	inc  ecx
	cmp  cx,[new_size.y1]
	jb   .y
	ret
;---------------------------------------------------------------------
align 4
.scaling_2:
	xor  eax,eax
	mov  ax,[start_coordinates.y]
	imul eax,[size_x]
	add  esi,eax
	xor  eax,eax
	mov  ax,[start_coordinates.x]
	imul eax,[bytes_to_pixel]
	add  esi,eax
	
	xor  eax,eax
	dec  eax
	mov [temp_y],eax
	
	xor ecx,ecx
align 4
.y_2:
	xor ebx,ebx
;-------------------------
align 4
.x_2:
	call ebp
	inc  ebx
	cmp  bx,[new_size.x1]
	jb   .x_2
;-------------------------
	inc  ecx
	cmp  cx,[new_size.y1]
	jb   .y_2
	ret
;---------------------------------------------------------------------
align 4
.32:
	push ecx ebx
	call .calculate_pixel
	mov  eax,[ecx]
	call .check_filtering_32
	pop  ebx ecx
	cld 
	stosd
	ret
;---------------------------------------------------------------------
align 4
.24:
	push ecx ebx
	call .calculate_pixel
	mov  eax,[ecx]	
	call .check_filtering_24
	cld
	stosw
	shr  eax,16	
	pop  ebx ecx
	cld
	stosb
	ret
;---------------------------------------------------------------------
align 4
.16:
	push ecx ebx
	call .calculate_pixel
	xor  eax,eax
	mov  ax,[ecx]
	call .check_filtering_16
	pop  ebx ecx
	cld 
	stosw
	ret
;---------------------------------------------------------------------
align 4
.8:
	push ecx ebx
	call .calculate_pixel
	cmp  [filtering],0
	jne   @f
	mov  al,[ecx]
	pop  ebx ecx
	cld
	stosb
	ret
@@:
	call .check_filtering_8
	cld
	stosw
	shr  eax,16	
	pop  ebx ecx
	cld
	stosb
	ret	
	
;---------------------------------------------------------------------
align 4
.calculate_pixel:
	test ecx,ecx
	jz   .offset_x
;.offset_y:
	mov  eax,ecx
	
	mov  ecx,[temp_y]
	cmp  eax,ecx
	jne  .new_y
	mov  eax,[temp_y_offset]
	mov  ecx,eax
	jmp  .offset_x
;--------------------------------
align 4
.new_y:
	mov  [temp_y],eax
 
	mov  ebx,[scaling_mode]
	test ebx,ebx
	jz  @f
	imul eax,[scaling_delta]
;--------------------------------
	push ebx
	mov  ebx,eax
	shr  eax,12
	and  ebx,0xFFF
	shl  ebx,7  ;multiply 128
	shr  ebx,12
	mov  [next_pixel_y],ebx
	pop  ebx
;--------------------------------
	jmp  .ex_1
align 4
@@:
;--------------------------------
	imul eax,dword [y]
	mov bx,word [new_size.y1]
;--------------------------------
align 4
.y_div:
	test ebx,ebx
	jnz  @f
	inc  ebx
align 4
@@:
	xor  edx,edx
	div  ebx
;--------------------------------
	push eax
	mov  eax,edx
	shl  eax,7  ;multiply 128
	xor  edx,edx
	div  ebx
	mov  [next_pixel_y],eax
	pop  eax
;--------------------------------
align 4
.ex_1:
	mov  [temp_y1],eax
	imul eax,[size_x]
 
	mov  [temp_y_offset],eax
	mov  ecx,eax
align 4
.offset_x:
	test ebx,ebx
	jz   .finish
	mov  eax,[esp+4]   ;ebx
	
	mov edx,[esp+8]
	test edx,edx
	jz  .continue
	shl eax,3
	add eax,[area_for_x]
	mov edx,[eax+4]
	mov [next_pixel_x],edx
	mov eax,[eax]
	jmp .ex_3
;--------------------------------
align 4
.continue:
	mov  ebx,[scaling_mode]
	test ebx,ebx
	jz  @f
	imul eax,[scaling_delta]
;--------------------------------
	mov  ebx,eax
	shr  eax,12
	and  ebx,0xFFF
	shl  ebx,7  ;multiply 128
	shr  ebx,12
	mov  [next_pixel_x],ebx
;--------------------------------
	jmp  .ex_2
;--------------------------------
align 4
@@:
	imul eax,dword [x]
	mov  bx,word [new_size.x1]
;--------------------------------
align 4
.x_div:
	test ebx,ebx
	jnz  @f
	inc  ebx
align 4
@@:
	xor  edx,edx
	div  ebx
;--------------------------------
	push eax
	mov  eax,edx
	shl  eax,7  ;multiply 128
	xor  edx,edx
	div  ebx
	mov  [next_pixel_x],eax
	pop  eax
;--------------------------------
align 4
.ex_2:
	mov  edx,[bytes_to_pixel]
	mov  ebx,eax
	xor  eax,eax
align 4
@@:
	add eax,ebx
	dec  edx
	jnz   @r
	
	mov ebx,[esp+4]
	shl ebx,3
	add ebx,[area_for_x]
	mov [ebx],eax
	mov edx,[next_pixel_x]
	mov [ebx+4],edx
align 4
.ex_3:
	mov [temp_x1],eax
	add  ecx,eax
align 4
.finish:
	add  ecx,esi
	ret
;---------------------------------------------------------------------
align 4
.get_memory:
 
	xor  ecx,ecx
	mov  cx,[new_size.x1]
	shl  ecx,3
	mcall 68,12
	mov  [area_for_x],eax
	
	xor   ecx,ecx
	mov   ebx,[new_size]
	mov   cx,bx
	shr   ebx,16
	imul ecx,ebx  ;[eax+8]
	mov  eax,[bytes_to_pixel]
	cmp  eax,1
	jne  @f
	mov  eax,3
@@:
	imul ecx,eax
	mcall 68,12
	mov  [raw_area],eax
	mov  edi,eax
	ret
;---------------------------------------------------------------------
include 'b_filter.inc'
;---------------------------------------------------------------------
align 4
EXPORTS:
	dd      szStart,	START
	dd      szVersion,	0x00010002
	dd      0
 
szStart		db 'START',0
szVersion	db 'version',0
 
align 4
pointer		dd 0
image_file	dd 0
new_size:
.y1:			dw 0
.x1:			dw 0
 
x:  dd 0
y:  dd 0
 
size_x		dd 0
bytes_to_pixel dd 0
 
start_coordinates:
.y	dw 0
.x	dw 0
 
scaling_mode	dd 0
raw_area	dd 0
scaling_delta dd 0
 
area_for_x dd 0
 
temp_y dd 0
temp_y_offset dd 0
 
resolution dd 0
 
filtering dd 0
 
next_pixel_y dd 0
next_pixel_x dd 0
 
temp_y1 dd 0
temp_x1 dd 0
 
B_sample dd 0
G_sample dd 0
R_sample dd 0
 
B_sample_1 dd 0
G_sample_1 dd 0
R_sample_1 dd 0
 
palette dd 0
 
background_color dd 0

Rev 1954	Rev 1958
1	;*****************************************************************************	1	;*****************************************************************************
2	; Scaling RAW image plugin - for zSea image viewer	2	; Scaling RAW image plugin - for zSea image viewer
3	; Copyright (c) 2009 - 2011, Marat Zakiyanov aka Mario79, aka Mario	3	; Copyright (c) 2009 - 2011, Marat Zakiyanov aka Mario79, aka Mario
4	; All rights reserved.	4	; All rights reserved.
5	;	5	;
6	; Redistribution and use in source and binary forms, with or without	6	; Redistribution and use in source and binary forms, with or without
7	; modification, are permitted provided that the following conditions are met:	7	; modification, are permitted provided that the following conditions are met:
8	; * Redistributions of source code must retain the above copyright	8	; * Redistributions of source code must retain the above copyright
9	; notice, this list of conditions and the following disclaimer.	9	; notice, this list of conditions and the following disclaimer.
10	; * Redistributions in binary form must reproduce the above copyright	10	; * Redistributions in binary form must reproduce the above copyright
11	; notice, this list of conditions and the following disclaimer in the	11	; notice, this list of conditions and the following disclaimer in the
12	; documentation and/or other materials provided with the distribution.	12	; documentation and/or other materials provided with the distribution.
13	; * Neither the name of the nor the	13	; * Neither the name of the nor the
14	; names of its contributors may be used to endorse or promote products	14	; names of its contributors may be used to endorse or promote products
15	; derived from this software without specific prior written permission.	15	; derived from this software without specific prior written permission.
16	;	16	;
17	; THIS SOFTWARE IS PROVIDED BY Marat Zakiyanov ''AS IS'' AND ANY	17	; THIS SOFTWARE IS PROVIDED BY Marat Zakiyanov ''AS IS'' AND ANY
18	; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED	18	; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19	; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE	19	; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20	; DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY	20	; DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY
21	; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES	21	; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22	; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;	22	; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23	; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND	23	; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24	; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS	25	; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
26	; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	;*****************************************************************************	27	;*****************************************************************************
28	; Scaling 32b, 24b, 16b, 8b	28	; Scaling 32b, 24b, 16b, 8b
29		29
30	format MS COFF	30	format MS COFF
31		31
32	public EXPORTS	32	public EXPORTS
33		33
34	section '.flat' code readable align 16	34	section '.flat' code readable align 16
35		35
36	;include 'macros.inc'	36	;include 'macros.inc'
37	include '../../../../macros.inc'	37	include '../../../../macros.inc'
38	;---------------------------------------------------------------------	38	;---------------------------------------------------------------------
39	START:	39	START:
40	pushad	40	pushad
-		41	mov edi,dword [esp+56]
-		42	mov esi,dword [esp+52]
-		43	mov edx,dword [esp+48]
-		44	mov ecx,dword [esp+44]
-		45	mov ebx,dword [esp+40]
-		46	mov eax,dword [esp+36]
41	mov [pointer],eax	47	mov [pointer],eax
42	test bx,bx	48	test bx,bx
43	jnz @f	49	jnz @f
44	inc bx	50	inc bx
45	@@:	51	@@:
46	ror ebx,16	52	ror ebx,16
47	test bx,bx	53	test bx,bx
48	jnz @f	54	jnz @f
49	inc bx	55	inc bx
50	@@:	56	@@:
51	rol ebx,16	57	rol ebx,16
52	mov [new_size],ebx	58	mov [new_size],ebx
53	mov [start_coordinates],ecx	59	mov [start_coordinates],ecx
54	mov [scaling_mode],edx	60	mov [scaling_mode],edx
55	mov [filtering],esi	61	mov [filtering],esi
56	mov [background_color],edi	62	mov [background_color],edi
57	mov eax,[eax+4]	63	mov eax,[eax+4]
58	mov [image_file],eax	64	mov [image_file],eax
59		65
60	mov esi,[eax+28]	66	mov esi,[eax+28]
61	add esi,eax	67	add esi,eax
62		68
63	mov ebx,[eax+20]	69	mov ebx,[eax+20]
64	add ebx,eax	70	add ebx,eax
65	mov [palette],ebx	71	mov [palette],ebx
66		72
67	mov ebx,[eax+12]	73	mov ebx,[eax+12]
68	mov [resolution],ebx	74	mov [resolution],ebx
69	cmp ebx,32	75	cmp ebx,32
70	jne @f	76	jne @f
71	mov ebp,dword START.32	77	mov ebp,dword START.32
72	jmp .1	78	jmp .1
73	@@:	79	@@:
74	cmp ebx,24	80	cmp ebx,24
75	jne @f	81	jne @f
76	mov ebp,dword START.24	82	mov ebp,dword START.24
77	jmp .1	83	jmp .1
78	@@:	84	@@:
79	cmp ebx,16	85	cmp ebx,16
80	jne @f	86	jne @f
81	mov ebp,dword START.16	87	mov ebp,dword START.16
82	jmp .1	88	jmp .1
83	@@:	89	@@:
84	cmp ebx,15	90	cmp ebx,15
85	jne @f	91	jne @f
86	inc ebx	92	inc ebx
87	mov ebp,dword START.16	93	mov ebp,dword START.16
88	jmp .1	94	jmp .1
89	@@:	95	@@:
90	cmp ebx,8	96	cmp ebx,8
91	jne @f	97	jne @f
92	mov ebp,dword START.8	98	mov ebp,dword START.8
93	@@:	99	@@:
94	.1:	100	.1:
95	shr ebx,3	101	shr ebx,3
96	mov [bytes_to_pixel],ebx	102	mov [bytes_to_pixel],ebx
97		103
98	mov ebx,[eax+8]	104	mov ebx,[eax+8]
99	mov [y],ebx	105	mov [y],ebx
100	mov ebx,[eax+4]	106	mov ebx,[eax+4]
101	mov [x],ebx	107	mov [x],ebx
102	imul ebx,[bytes_to_pixel]	108	imul ebx,[bytes_to_pixel]
103	mov [size_x],ebx	109	mov [size_x],ebx
104		110
105	mov eax,100	111	mov eax,100
106	shl eax,12	112	shl eax,12
107	mov ebx,[scaling_mode]	113	mov ebx,[scaling_mode]
108	test ebx,ebx	114	test ebx,ebx
109	jnz @f	115	jnz @f
110	inc ebx	116	inc ebx
111	@@:	117	@@:
112	xor edx,edx	118	xor edx,edx
113	div ebx	119	div ebx
114	mov [scaling_delta],eax	120	mov [scaling_delta],eax
115		121
116	call .get_memory	122	call .get_memory
117	cmp [scaling_mode],0	123	cmp [scaling_mode],0
118	jne @f	124	jne @f
119	call .scaling	125	call .scaling
120	jmp .ret_ok	126	jmp .ret_ok
121	@@:	127	@@:
122	call .scaling_2	128	call .scaling_2
123		129
124	;---------------------------------------------------------------------	130	;---------------------------------------------------------------------
125	.ret_ok:	131	.ret_ok:
126	mcall 68,13,[area_for_x]	132	mcall 68,13,[area_for_x]
127	mov ebx,[pointer]	133	mov ebx,[pointer]
128	mov eax,[raw_area]	134	mov eax,[raw_area]
129	mov [ebx+20],eax ; store RAW pointer	135	mov [ebx+20],eax ; store RAW pointer
130	; movzx eax,word [new_size.x1]	136	; movzx eax,word [new_size.x1]
131	; mov [ebx+24],esi ;eax	137	; mov [ebx+24],esi ;eax
132	; movzx eax,word [new_size.y1]	138	; movzx eax,word [new_size.y1]
133	; mov [ebx+28],eax	139	; mov [ebx+28],eax
134	; mov eax,[size_x]	140	; mov eax,[size_x]
135	; mov [ebx+32],eax	141	; mov [ebx+32],eax
136	; mov eax,[bytes_to_pixel]	142	; mov eax,[bytes_to_pixel]
137	; mov [ebx+36],eax	143	; mov [ebx+36],eax
138	; mov eax,[x]	144	; mov eax,[x]
139	; mov [ebx+40],eax	145	; mov [ebx+40],eax
140	; mov eax,[y]	146	; mov eax,[y]
141	; mov [ebx+44],eax	147	; mov [ebx+44],eax
142	.exit:	148	.exit:
143	popad	149	popad
144	ret	150	ret 24
145	;---------------------------------------------------------------------	151	;---------------------------------------------------------------------
146	align 4	152	align 4
147	.scaling:	153	.scaling:
148	xor ecx,ecx	154	xor ecx,ecx
149	.y:	155	.y:
150	xor ebx,ebx	156	xor ebx,ebx
151	;-------------------------	157	;-------------------------
152	.x:	158	.x:
153	call ebp	159	call ebp
154	inc ebx	160	inc ebx
155	cmp bx,[new_size.x1]	161	cmp bx,[new_size.x1]
156	jb .x	162	jb .x
157	;-------------------------	163	;-------------------------
158	inc ecx	164	inc ecx
159	cmp cx,[new_size.y1]	165	cmp cx,[new_size.y1]
160	jb .y	166	jb .y
161	ret	167	ret
162	;---------------------------------------------------------------------	168	;---------------------------------------------------------------------
163	align 4	169	align 4
164	.scaling_2:	170	.scaling_2:
165	xor eax,eax	171	xor eax,eax
166	mov ax,[start_coordinates.y]	172	mov ax,[start_coordinates.y]
167	imul eax,[size_x]	173	imul eax,[size_x]
168	add esi,eax	174	add esi,eax
169	xor eax,eax	175	xor eax,eax
170	mov ax,[start_coordinates.x]	176	mov ax,[start_coordinates.x]
171	imul eax,[bytes_to_pixel]	177	imul eax,[bytes_to_pixel]
172	add esi,eax	178	add esi,eax
173		179
174	xor eax,eax	180	xor eax,eax
175	dec eax	181	dec eax
176	mov [temp_y],eax	182	mov [temp_y],eax
177		183
178	xor ecx,ecx	184	xor ecx,ecx
179	align 4	185	align 4
180	.y_2:	186	.y_2:
181	xor ebx,ebx	187	xor ebx,ebx
182	;-------------------------	188	;-------------------------
183	align 4	189	align 4
184	.x_2:	190	.x_2:
185	call ebp	191	call ebp
186	inc ebx	192	inc ebx
187	cmp bx,[new_size.x1]	193	cmp bx,[new_size.x1]
188	jb .x_2	194	jb .x_2
189	;-------------------------	195	;-------------------------
190	inc ecx	196	inc ecx
191	cmp cx,[new_size.y1]	197	cmp cx,[new_size.y1]
192	jb .y_2	198	jb .y_2
193	ret	199	ret
194	;---------------------------------------------------------------------	200	;---------------------------------------------------------------------
195	align 4	201	align 4
196	.32:	202	.32:
197	push ecx ebx	203	push ecx ebx
198	call .calculate_pixel	204	call .calculate_pixel
199	mov eax,[ecx]	205	mov eax,[ecx]
200	call .check_filtering_32	206	call .check_filtering_32
201	pop ebx ecx	207	pop ebx ecx
202	cld	208	cld
203	stosd	209	stosd
204	ret	210	ret
205	;---------------------------------------------------------------------	211	;---------------------------------------------------------------------
206	align 4	212	align 4
207	.24:	213	.24:
208	push ecx ebx	214	push ecx ebx
209	call .calculate_pixel	215	call .calculate_pixel
210	mov eax,[ecx]	216	mov eax,[ecx]
211	call .check_filtering_24	217	call .check_filtering_24
212	cld	218	cld
213	stosw	219	stosw
214	shr eax,16	220	shr eax,16
215	pop ebx ecx	221	pop ebx ecx
216	cld	222	cld
217	stosb	223	stosb
218	ret	224	ret
219	;---------------------------------------------------------------------	225	;---------------------------------------------------------------------
220	align 4	226	align 4
221	.16:	227	.16:
222	push ecx ebx	228	push ecx ebx
223	call .calculate_pixel	229	call .calculate_pixel
224	xor eax,eax	230	xor eax,eax
225	mov ax,[ecx]	231	mov ax,[ecx]
226	call .check_filtering_16	232	call .check_filtering_16
227	pop ebx ecx	233	pop ebx ecx
228	cld	234	cld
229	stosw	235	stosw
230	ret	236	ret
231	;---------------------------------------------------------------------	237	;---------------------------------------------------------------------
232	align 4	238	align 4
233	.8:	239	.8:
234	push ecx ebx	240	push ecx ebx
235	call .calculate_pixel	241	call .calculate_pixel
236	cmp [filtering],0	242	cmp [filtering],0
237	jne @f	243	jne @f
238	mov al,[ecx]	244	mov al,[ecx]
239	pop ebx ecx	245	pop ebx ecx
240	cld	246	cld
241	stosb	247	stosb
242	ret	248	ret
243	@@:	249	@@:
244	call .check_filtering_8	250	call .check_filtering_8
245	cld	251	cld
246	stosw	252	stosw
247	shr eax,16	253	shr eax,16
248	pop ebx ecx	254	pop ebx ecx
249	cld	255	cld
250	stosb	256	stosb
251	ret	257	ret
252		258
253	;---------------------------------------------------------------------	259	;---------------------------------------------------------------------
254	align 4	260	align 4
255	.calculate_pixel:	261	.calculate_pixel:
256	test ecx,ecx	262	test ecx,ecx
257	jz .offset_x	263	jz .offset_x
258	;.offset_y:	264	;.offset_y:
259	mov eax,ecx	265	mov eax,ecx
260		266
261	mov ecx,[temp_y]	267	mov ecx,[temp_y]
262	cmp eax,ecx	268	cmp eax,ecx
263	jne .new_y	269	jne .new_y
264	mov eax,[temp_y_offset]	270	mov eax,[temp_y_offset]
265	mov ecx,eax	271	mov ecx,eax
266	jmp .offset_x	272	jmp .offset_x
267	;--------------------------------	273	;--------------------------------
268	align 4	274	align 4
269	.new_y:	275	.new_y:
270	mov [temp_y],eax	276	mov [temp_y],eax
271		277
272	mov ebx,[scaling_mode]	278	mov ebx,[scaling_mode]
273	test ebx,ebx	279	test ebx,ebx
274	jz @f	280	jz @f
275	imul eax,[scaling_delta]	281	imul eax,[scaling_delta]
276	;--------------------------------	282	;--------------------------------
277	push ebx	283	push ebx
278	mov ebx,eax	284	mov ebx,eax
279	shr eax,12	285	shr eax,12
280	and ebx,0xFFF	286	and ebx,0xFFF
281	shl ebx,7 ;multiply 128	287	shl ebx,7 ;multiply 128
282	shr ebx,12	288	shr ebx,12
283	mov [next_pixel_y],ebx	289	mov [next_pixel_y],ebx
284	pop ebx	290	pop ebx
285	;--------------------------------	291	;--------------------------------
286	jmp .ex_1	292	jmp .ex_1
287	align 4	293	align 4
288	@@:	294	@@:
289	;--------------------------------	295	;--------------------------------
290	imul eax,dword [y]	296	imul eax,dword [y]
291	mov bx,word [new_size.y1]	297	mov bx,word [new_size.y1]
292	;--------------------------------	298	;--------------------------------
293	align 4	299	align 4
294	.y_div:	300	.y_div:
295	test ebx,ebx	301	test ebx,ebx
296	jnz @f	302	jnz @f
297	inc ebx	303	inc ebx
298	align 4	304	align 4
299	@@:	305	@@:
300	xor edx,edx	306	xor edx,edx
301	div ebx	307	div ebx
302	;--------------------------------	308	;--------------------------------
303	push eax	309	push eax
304	mov eax,edx	310	mov eax,edx
305	shl eax,7 ;multiply 128	311	shl eax,7 ;multiply 128
306	xor edx,edx	312	xor edx,edx
307	div ebx	313	div ebx
308	mov [next_pixel_y],eax	314	mov [next_pixel_y],eax
309	pop eax	315	pop eax
310	;--------------------------------	316	;--------------------------------
311	align 4	317	align 4
312	.ex_1:	318	.ex_1:
313	mov [temp_y1],eax	319	mov [temp_y1],eax
314	imul eax,[size_x]	320	imul eax,[size_x]
315		321
316	mov [temp_y_offset],eax	322	mov [temp_y_offset],eax
317	mov ecx,eax	323	mov ecx,eax
318	align 4	324	align 4
319	.offset_x:	325	.offset_x:
320	test ebx,ebx	326	test ebx,ebx
321	jz .finish	327	jz .finish
322	mov eax,[esp+4] ;ebx	328	mov eax,[esp+4] ;ebx
323		329
324	mov edx,[esp+8]	330	mov edx,[esp+8]
325	test edx,edx	331	test edx,edx
326	jz .continue	332	jz .continue
327	shl eax,3	333	shl eax,3
328	add eax,[area_for_x]	334	add eax,[area_for_x]
329	mov edx,[eax+4]	335	mov edx,[eax+4]
330	mov [next_pixel_x],edx	336	mov [next_pixel_x],edx
331	mov eax,[eax]	337	mov eax,[eax]
332	jmp .ex_3	338	jmp .ex_3
333	;--------------------------------	339	;--------------------------------
334	align 4	340	align 4
335	.continue:	341	.continue:
336	mov ebx,[scaling_mode]	342	mov ebx,[scaling_mode]
337	test ebx,ebx	343	test ebx,ebx
338	jz @f	344	jz @f
339	imul eax,[scaling_delta]	345	imul eax,[scaling_delta]
340	;--------------------------------	346	;--------------------------------
341	mov ebx,eax	347	mov ebx,eax
342	shr eax,12	348	shr eax,12
343	and ebx,0xFFF	349	and ebx,0xFFF
344	shl ebx,7 ;multiply 128	350	shl ebx,7 ;multiply 128
345	shr ebx,12	351	shr ebx,12
346	mov [next_pixel_x],ebx	352	mov [next_pixel_x],ebx
347	;--------------------------------	353	;--------------------------------
348	jmp .ex_2	354	jmp .ex_2
349	;--------------------------------	355	;--------------------------------
350	align 4	356	align 4
351	@@:	357	@@:
352	imul eax,dword [x]	358	imul eax,dword [x]
353	mov bx,word [new_size.x1]	359	mov bx,word [new_size.x1]
354	;--------------------------------	360	;--------------------------------
355	align 4	361	align 4
356	.x_div:	362	.x_div:
357	test ebx,ebx	363	test ebx,ebx
358	jnz @f	364	jnz @f
359	inc ebx	365	inc ebx
360	align 4	366	align 4
361	@@:	367	@@:
362	xor edx,edx	368	xor edx,edx
363	div ebx	369	div ebx
364	;--------------------------------	370	;--------------------------------
365	push eax	371	push eax
366	mov eax,edx	372	mov eax,edx
367	shl eax,7 ;multiply 128	373	shl eax,7 ;multiply 128
368	xor edx,edx	374	xor edx,edx
369	div ebx	375	div ebx
370	mov [next_pixel_x],eax	376	mov [next_pixel_x],eax
371	pop eax	377	pop eax
372	;--------------------------------	378	;--------------------------------
373	align 4	379	align 4
374	.ex_2:	380	.ex_2:
375	mov edx,[bytes_to_pixel]	381	mov edx,[bytes_to_pixel]
376	mov ebx,eax	382	mov ebx,eax
377	xor eax,eax	383	xor eax,eax
378	align 4	384	align 4
379	@@:	385	@@:
380	add eax,ebx	386	add eax,ebx
381	dec edx	387	dec edx
382	jnz @r	388	jnz @r
383		389
384	mov ebx,[esp+4]	390	mov ebx,[esp+4]
385	shl ebx,3	391	shl ebx,3
386	add ebx,[area_for_x]	392	add ebx,[area_for_x]
387	mov [ebx],eax	393	mov [ebx],eax
388	mov edx,[next_pixel_x]	394	mov edx,[next_pixel_x]
389	mov [ebx+4],edx	395	mov [ebx+4],edx
390	align 4	396	align 4
391	.ex_3:	397	.ex_3:
392	mov [temp_x1],eax	398	mov [temp_x1],eax
393	add ecx,eax	399	add ecx,eax
394	align 4	400	align 4
395	.finish:	401	.finish:
396	add ecx,esi	402	add ecx,esi
397	ret	403	ret
398	;---------------------------------------------------------------------	404	;---------------------------------------------------------------------
399	align 4	405	align 4
400	.get_memory:	406	.get_memory:
401		407
402	xor ecx,ecx	408	xor ecx,ecx
403	mov cx,[new_size.x1]	409	mov cx,[new_size.x1]
404	shl ecx,3	410	shl ecx,3
405	mcall 68,12	411	mcall 68,12
406	mov [area_for_x],eax	412	mov [area_for_x],eax
407		413
408	xor ecx,ecx	414	xor ecx,ecx
409	mov ebx,[new_size]	415	mov ebx,[new_size]
410	mov cx,bx	416	mov cx,bx
411	shr ebx,16	417	shr ebx,16
412	imul ecx,ebx ;[eax+8]	418	imul ecx,ebx ;[eax+8]
413	mov eax,[bytes_to_pixel]	419	mov eax,[bytes_to_pixel]
414	cmp eax,1	420	cmp eax,1
415	jne @f	421	jne @f
416	mov eax,3	422	mov eax,3
417	@@:	423	@@:
418	imul ecx,eax	424	imul ecx,eax
419	mcall 68,12	425	mcall 68,12
420	mov [raw_area],eax	426	mov [raw_area],eax
421	mov edi,eax	427	mov edi,eax
422	ret	428	ret
423	;---------------------------------------------------------------------	429	;---------------------------------------------------------------------
424	include 'b_filter.inc'	430	include 'b_filter.inc'
425	;---------------------------------------------------------------------	431	;---------------------------------------------------------------------
426	align 4	432	align 4
427	EXPORTS:	433	EXPORTS:
428	dd szStart, START	434	dd szStart, START
429	dd szVersion, 0x00010001	435	dd szVersion, 0x00010002
430	dd 0	436	dd 0
431		437
432	szStart db 'START',0	438	szStart db 'START',0
433	szVersion db 'version',0	439	szVersion db 'version',0
434		440
435	align 4	441	align 4
436	pointer dd 0	442	pointer dd 0
437	image_file dd 0	443	image_file dd 0
438	new_size:	444	new_size:
439	.y1: dw 0	445	.y1: dw 0
440	.x1: dw 0	446	.x1: dw 0
441		447
442	x: dd 0	448	x: dd 0
443	y: dd 0	449	y: dd 0
444		450
445	size_x dd 0	451	size_x dd 0
446	bytes_to_pixel dd 0	452	bytes_to_pixel dd 0
447		453
448	start_coordinates:	454	start_coordinates:
449	.y dw 0	455	.y dw 0
450	.x dw 0	456	.x dw 0
451		457
452	scaling_mode dd 0	458	scaling_mode dd 0
453	raw_area dd 0	459	raw_area dd 0
454	scaling_delta dd 0	460	scaling_delta dd 0
455		461
456	area_for_x dd 0	462	area_for_x dd 0
457		463
458	temp_y dd 0	464	temp_y dd 0
459	temp_y_offset dd 0	465	temp_y_offset dd 0
460		466
461	resolution dd 0	467	resolution dd 0
462		468
463	filtering dd 0	469	filtering dd 0
464		470
465	next_pixel_y dd 0	471	next_pixel_y dd 0
466	next_pixel_x dd 0	472	next_pixel_x dd 0
467		473
468	temp_y1 dd 0	474	temp_y1 dd 0
469	temp_x1 dd 0	475	temp_x1 dd 0
470		476
471	B_sample dd 0	477	B_sample dd 0
472	G_sample dd 0	478	G_sample dd 0
473	R_sample dd 0	479	R_sample dd 0
474		480
475	B_sample_1 dd 0	481	B_sample_1 dd 0
476	G_sample_1 dd 0	482	G_sample_1 dd 0
477	R_sample_1 dd 0	483	R_sample_1 dd 0
478		484
479	palette dd 0	485	palette dd 0
480		486
481	background_color dd 0	487	background_color dd 0

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(root)/programs/media/zsea/plugins/scaling/scaling.asm – Rev 1954 → 1958