WebSVN – Kolibri OS – Diff – /programs/develop/libraries/TinyGL/asm_fork/zbuffer.inc


;
; Z buffer
;
 
include 'zfeatures.inc'
 
ZB_Z_BITS equ 16
 
ZB_POINT_Z_FRAC_BITS equ 14
 
ZB_POINT_S_MIN equ (1 shl 13)
ZB_POINT_S_MAX equ ( (1 shl 22)-(1 shl 13) )
ZB_POINT_T_MIN equ (1 shl 21)
ZB_POINT_T_MAX equ ( (1 shl 30)-(1 shl 21) )
 
ZB_POINT_RED_MIN equ (1 shl 8)
ZB_POINT_RED_MAX equ ( (1 shl 16)-1 )
ZB_POINT_GREEN_MIN equ (1 shl 8)
ZB_POINT_GREEN_MAX equ ( (1 shl 16)-1 )
ZB_POINT_BLUE_MIN equ (1 shl 8)
ZB_POINT_BLUE_MAX equ ( (1 shl 16)-1 )
 
; display modes
ZB_MODE_5R6G5B equ 1  ; true color 16 bits
ZB_MODE_INDEX  equ 2  ; color index 8 bits
ZB_MODE_RGBA   equ 3  ; 32 bit rgba mode
ZB_MODE_RGB24  equ 4  ; 24 bit rgb mode
ZB_NB_COLORS   equ 225 ; number of colors for 8 bit display
 
if TGL_FEATURE_RENDER_BITS eq 15
 
;#define RGB_TO_PIXEL(r,g,b) \
;  ((((r) >> 1) & 0x7c00) | (((g) >> 6) & 0x03e0) | ((b) >> 11))
;typedef unsigned short PIXEL;
; bytes per pixel
;PSZB equ 2
; bits per pixel = (1 << PSZH)
;PSZSH equ 4
 
else if TGL_FEATURE_RENDER_BITS eq 16
 
; 16 bit mode
;#define RGB_TO_PIXEL(r,g,b) \
;  (((r) & 0xF800) | (((g) >> 5) & 0x07E0) | ((b) >> 11))
;typedef unsigned short PIXEL;
;PSZB equ 2
;PSZSH equ 4
 
else if TGL_FEATURE_RENDER_BITS eq 24
 
macro RGB_TO_PIXEL r,g,b
{
	mov eax,b
	shr eax,8
	push eax
		mov eax,g
		and eax,0xff00
		or dword[esp],eax
		mov eax,r
		shl eax,8
		or dword[esp],eax
	pop eax
}
 
;typedef unsigned char PIXEL;
PSZB equ 3
PSZSH equ 5
 
else if TGL_FEATURE_RENDER_BITS eq 32
 
;#define RGB_TO_PIXEL(r,g,b) \
;  ((((r) << 8) & 0xff0000) | ((g) & 0xff00) | ((b) >> 8))
;typedef unsigned int PIXEL;
;PSZB equ 4
;PSZSH equ 5
 
else
 
;#error Incorrect number of bits per pixel
 
end if
 
struct ZBuffer
	xsize dd ? ;int
	ysize dd ? ;int
	linesize dd ? ;int ;line size, in bytes
	mode dd ? ;int
    
	zbuf dd ? ;*unsigned short
	pbuf dd ? ;*PIXEL
	frame_buffer_allocated dd ? ;int
    
	nb_colors dd ? ;int
	dctable dd ? ;*unsigned char
	ctable dd ? ;*int
	current_texture dd ? ;*PIXEL
ends
 
offs_zbuf_xsize equ 0
offs_zbuf_ysize equ 4
offs_zbuf_linesize equ 8
offs_zbuf_mode equ 16
offs_zbuf_zbuf equ 20
offs_zbuf_pbuf equ 24
offs_zbuf_frame_buffer_allocated equ 28
offs_zbuf_nb_colors equ 32
offs_zbuf_dctable equ 36
offs_zbuf_ctable equ 40
offs_zbuf_current_texture equ 44
 
struct ZBufferPoint
	x dd ? ;int ;integer coordinates in the zbuffer
	y dd ? ;int
	z dd ? ;int
	s dd ? ;int ;coordinates for the mapping
	t dd ? ;int
	r dd ? ;int ;color indexes
	g dd ? ;int
	b dd ? ;int
 
	fsz dd ? ;float ;temporary coordinates for mapping
	tz dd ? ;float
ends
 
offs_zbup_x equ  0
offs_zbup_y equ  4
offs_zbup_z equ  8
offs_zbup_s equ 12
offs_zbup_t equ 16
offs_zbup_r equ 20
offs_zbup_g equ 24
offs_zbup_b equ 28
offs_zbup_sz equ 32
offs_zbup_tz equ 36
 
; ztriangle.c
 
;
; Memory allocator for TinyGL
;
 
; modify these functions so that they suit your needs
 
align 4
proc gl_free uses eax ebx ecx, mptr:dword
	mov ecx,[mptr]
	or ecx,ecx
	jz @f
 
		mcall 68, 13
	@@:
	ret
endp
 
;description:
; выделение памяти
align 4
proc gl_malloc uses ebx ecx, size:dword
	mcall 68, 12, [size]
	ret
endp
 
;description:
; выделение очищеной памяти
align 4
proc gl_zalloc uses ebx ecx edi, size:dword
	mov ecx,[size]
	stdcall gl_malloc,ecx
	or eax,eax
	jz @f
		mov ebx,eax
		mov edi,eax
		xor eax,eax
		shr ecx,2
		rep stosd ;очистка памяти (пишем везде 0)
		mov eax,ebx
	@@:
	ret
endp

Rev 5213	Rev 5218
1	;	1	;
2	; Z buffer	2	; Z buffer
3	;	3	;
4		4
5	include 'zfeatures.inc'	5	include 'zfeatures.inc'
6		6
7	ZB_Z_BITS equ 16	7	ZB_Z_BITS equ 16
8		8
9	ZB_POINT_Z_FRAC_BITS equ 14	9	ZB_POINT_Z_FRAC_BITS equ 14
10		10
11	ZB_POINT_S_MIN equ (1 shl 13)	11	ZB_POINT_S_MIN equ (1 shl 13)
12	ZB_POINT_S_MAX equ ( (1 shl 22)-(1 shl 13) )	12	ZB_POINT_S_MAX equ ( (1 shl 22)-(1 shl 13) )
13	ZB_POINT_T_MIN equ (1 shl 21)	13	ZB_POINT_T_MIN equ (1 shl 21)
14	ZB_POINT_T_MAX equ ( (1 shl 30)-(1 shl 21) )	14	ZB_POINT_T_MAX equ ( (1 shl 30)-(1 shl 21) )
15		15
16	ZB_POINT_RED_MIN equ (1 shl 8)	16	ZB_POINT_RED_MIN equ (1 shl 8)
17	ZB_POINT_RED_MAX equ ( (1 shl 16)-1 )	17	ZB_POINT_RED_MAX equ ( (1 shl 16)-1 )
18	ZB_POINT_GREEN_MIN equ (1 shl 8)	18	ZB_POINT_GREEN_MIN equ (1 shl 8)
19	ZB_POINT_GREEN_MAX equ ( (1 shl 16)-1 )	19	ZB_POINT_GREEN_MAX equ ( (1 shl 16)-1 )
20	ZB_POINT_BLUE_MIN equ (1 shl 8)	20	ZB_POINT_BLUE_MIN equ (1 shl 8)
21	ZB_POINT_BLUE_MAX equ ( (1 shl 16)-1 )	21	ZB_POINT_BLUE_MAX equ ( (1 shl 16)-1 )
22		22
23	; display modes	23	; display modes
24	ZB_MODE_5R6G5B equ 1 ; true color 16 bits	24	ZB_MODE_5R6G5B equ 1 ; true color 16 bits
25	ZB_MODE_INDEX equ 2 ; color index 8 bits	25	ZB_MODE_INDEX equ 2 ; color index 8 bits
26	ZB_MODE_RGBA equ 3 ; 32 bit rgba mode	26	ZB_MODE_RGBA equ 3 ; 32 bit rgba mode
27	ZB_MODE_RGB24 equ 4 ; 24 bit rgb mode	27	ZB_MODE_RGB24 equ 4 ; 24 bit rgb mode
28	ZB_NB_COLORS equ 225 ; number of colors for 8 bit display	28	ZB_NB_COLORS equ 225 ; number of colors for 8 bit display
29		29
30	if TGL_FEATURE_RENDER_BITS eq 15	30	if TGL_FEATURE_RENDER_BITS eq 15
31		31
32	;#define RGB_TO_PIXEL(r,g,b) \	32	;#define RGB_TO_PIXEL(r,g,b) \
33	; ((((r) >> 1) & 0x7c00) \| (((g) >> 6) & 0x03e0) \| ((b) >> 11))	33	; ((((r) >> 1) & 0x7c00) \| (((g) >> 6) & 0x03e0) \| ((b) >> 11))
34	;typedef unsigned short PIXEL;	34	;typedef unsigned short PIXEL;
35	;/* bytes per pixel */	35	; bytes per pixel
36	;PSZB equ 2	36	;PSZB equ 2
37	;/* bits per pixel = (1 << PSZH) */	37	; bits per pixel = (1 << PSZH)
38	;PSZSH equ 4	38	;PSZSH equ 4
39		39
40	else if TGL_FEATURE_RENDER_BITS eq 16	40	else if TGL_FEATURE_RENDER_BITS eq 16
41		41
42	;/* 16 bit mode */	42	; 16 bit mode
43	;#define RGB_TO_PIXEL(r,g,b) \	43	;#define RGB_TO_PIXEL(r,g,b) \
44	; (((r) & 0xF800) \| (((g) >> 5) & 0x07E0) \| ((b) >> 11))	44	; (((r) & 0xF800) \| (((g) >> 5) & 0x07E0) \| ((b) >> 11))
45	;typedef unsigned short PIXEL;	45	;typedef unsigned short PIXEL;
46	;PSZB equ 2	46	;PSZB equ 2
47	;PSZSH equ 4	47	;PSZSH equ 4
48		48
49	else if TGL_FEATURE_RENDER_BITS eq 24	49	else if TGL_FEATURE_RENDER_BITS eq 24
50		50
51	macro RGB_TO_PIXEL r,g,b	51	macro RGB_TO_PIXEL r,g,b
52	{	52	{
53	mov eax,b	53	mov eax,b
54	shr eax,8	54	shr eax,8
55	push eax	55	push eax
56	mov eax,g	56	mov eax,g
57	and eax,0xff00	57	and eax,0xff00
58	or dword[esp],eax	58	or dword[esp],eax
59	mov eax,r	59	mov eax,r
60	shl eax,8	60	shl eax,8
61	or dword[esp],eax	61	or dword[esp],eax
62	pop eax	62	pop eax
63	}	63	}
64		64
65	;typedef unsigned char PIXEL;	65	;typedef unsigned char PIXEL;
66	PSZB equ 3	66	PSZB equ 3
67	PSZSH equ 5	67	PSZSH equ 5
68		68
69	else if TGL_FEATURE_RENDER_BITS eq 32	69	else if TGL_FEATURE_RENDER_BITS eq 32
70		70
71	;#define RGB_TO_PIXEL(r,g,b) \	71	;#define RGB_TO_PIXEL(r,g,b) \
72	; ((((r) << 8) & 0xff0000) \| ((g) & 0xff00) \| ((b) >> 8))	72	; ((((r) << 8) & 0xff0000) \| ((g) & 0xff00) \| ((b) >> 8))
73	;typedef unsigned int PIXEL;	73	;typedef unsigned int PIXEL;
74	;PSZB equ 4	74	;PSZB equ 4
75	;PSZSH equ 5	75	;PSZSH equ 5
76		76
77	else	77	else
78		78
79	;#error Incorrect number of bits per pixel	79	;#error Incorrect number of bits per pixel
80		80
81	end if	81	end if
82		82
83	struct ZBuffer	83	struct ZBuffer
84	xsize dd ? ;int	84	xsize dd ? ;int
85	ysize dd ? ;int	85	ysize dd ? ;int
86	linesize dd ? ;int ;line size, in bytes	86	linesize dd ? ;int ;line size, in bytes
87	mode dd ? ;int	87	mode dd ? ;int
88		88
89	zbuf dd ? ;*unsigned short	89	zbuf dd ? ;*unsigned short
90	pbuf dd ? ;*PIXEL	90	pbuf dd ? ;*PIXEL
91	frame_buffer_allocated dd ? ;int	91	frame_buffer_allocated dd ? ;int
92		92
93	nb_colors dd ? ;int	93	nb_colors dd ? ;int
94	dctable dd ? ;*unsigned char	94	dctable dd ? ;*unsigned char
95	ctable dd ? ;*int	95	ctable dd ? ;*int
96	current_texture dd ? ;*PIXEL	96	current_texture dd ? ;*PIXEL
97	ends	97	ends
98		98
99	offs_zbuf_xsize equ 0	99	offs_zbuf_xsize equ 0
100	offs_zbuf_ysize equ 4	100	offs_zbuf_ysize equ 4
101	offs_zbuf_linesize equ 8	101	offs_zbuf_linesize equ 8
102	offs_zbuf_mode equ 16	102	offs_zbuf_mode equ 16
103	offs_zbuf_zbuf equ 20	103	offs_zbuf_zbuf equ 20
104	offs_zbuf_pbuf equ 24	104	offs_zbuf_pbuf equ 24
105	offs_zbuf_frame_buffer_allocated equ 28	105	offs_zbuf_frame_buffer_allocated equ 28
106	offs_zbuf_nb_colors equ 32	106	offs_zbuf_nb_colors equ 32
107	offs_zbuf_dctable equ 36	107	offs_zbuf_dctable equ 36
108	offs_zbuf_ctable equ 40	108	offs_zbuf_ctable equ 40
109	offs_zbuf_current_texture equ 44	109	offs_zbuf_current_texture equ 44
110		110
111	struct ZBufferPoint	111	struct ZBufferPoint
112	x dd ? ;int ;integer coordinates in the zbuffer	112	x dd ? ;int ;integer coordinates in the zbuffer
113	y dd ? ;int	113	y dd ? ;int
114	z dd ? ;int	114	z dd ? ;int
115	s dd ? ;int ;coordinates for the mapping	115	s dd ? ;int ;coordinates for the mapping
116	t dd ? ;int	116	t dd ? ;int
117	r dd ? ;int ;color indexes	117	r dd ? ;int ;color indexes
118	g dd ? ;int	118	g dd ? ;int
119	b dd ? ;int	119	b dd ? ;int
120		120
121	fsz dd ? ;float ;temporary coordinates for mapping	121	fsz dd ? ;float ;temporary coordinates for mapping
122	tz dd ? ;float	122	tz dd ? ;float
123	ends	123	ends
124		124
125	offs_zbup_x equ 0	125	offs_zbup_x equ 0
126	offs_zbup_y equ 4	126	offs_zbup_y equ 4
127	offs_zbup_z equ 8	127	offs_zbup_z equ 8
128	offs_zbup_s equ 12	128	offs_zbup_s equ 12
129	offs_zbup_t equ 16	129	offs_zbup_t equ 16
130	offs_zbup_r equ 20	130	offs_zbup_r equ 20
131	offs_zbup_g equ 24	131	offs_zbup_g equ 24
132	offs_zbup_b equ 28	132	offs_zbup_b equ 28
133	offs_zbup_sz equ 32	133	offs_zbup_sz equ 32
134	offs_zbup_tz equ 36	134	offs_zbup_tz equ 36
135		135
136	; ztriangle.c	136	; ztriangle.c
137		137
138	;	138	;
139	; Memory allocator for TinyGL	139	; Memory allocator for TinyGL
140	;	140	;
141		141
142	; modify these functions so that they suit your needs	142	; modify these functions so that they suit your needs
143		143
144	align 4	144	align 4
145	proc gl_free uses ebx ecx, mptr:dword	145	proc gl_free uses eax ebx ecx, mptr:dword
146	mov ecx,[mptr]	146	mov ecx,[mptr]
147	or ecx,ecx	147	or ecx,ecx
148	jz @f	148	jz @f
149	@@:	-
150	mcall 68, 13	149	mcall 68, 13
-		150	@@:
151	ret	151	ret
152	endp	152	endp
153		153
154	;description:	154	;description:
155	; выделение памяти	155	; выделение памяти
156	align 4	156	align 4
157	proc gl_malloc uses ebx ecx, size:dword	157	proc gl_malloc uses ebx ecx, size:dword
158	mcall 68, 12, [size]	158	mcall 68, 12, [size]
159	ret	159	ret
160	endp	160	endp
161		161
162	;description:	162	;description:
163	; выделение очищеной памяти	163	; выделение очищеной памяти
164	align 4	164	align 4
165	proc gl_zalloc uses ebx ecx edi, size:dword	165	proc gl_zalloc uses ebx ecx edi, size:dword
166	mov ecx,[size]	166	mov ecx,[size]
167	stdcall gl_malloc,ecx	167	stdcall gl_malloc,ecx
168	cmp eax,0	168	or eax,eax
169	je @f	169	jz @f
170	mov ebx,eax	170	mov ebx,eax
171	mov edi,eax	171	mov edi,eax
172	xor eax,eax	172	xor eax,eax
173	shr ecx,2	173	shr ecx,2
174	rep stosd ;очистка памяти (пишем везде 0)	174	rep stosd ;очистка памяти (пишем везде 0)
175	mov eax,ebx	175	mov eax,ebx
176	@@:	176	@@:
177	ret	177	ret
178	endp	178	endp

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(root)/programs/develop/libraries/TinyGL/asm_fork/zbuffer.inc – Rev 5213 → 5218