stormdwg.c revision fe5e51b7 
1/* $XConsortium: dwg.c /main/2 1996/10/28 06:57:55 kaleb $ */
2
3
4
5/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/mga/util/stormdwg.c,v 1.1 1997/04/12 14:11:29 hohndel Exp $ */
6
7#include <stdio.h>
8#include <stdlib.h>
9
10const char *opcodes[] = {
11	"line_open",		/* 0000 */
12	"autoline_open",	/* 0001 */
13	"line_close",		/* 0010 */
14	"autoline_close",	/* 0011 */
15
16	"trapezoid",		/* 0100 */
17	"trapezoid texture map", /* 0101 */
18	"reserved trap",	/* 0110 */
19	"reserved trap",	/* 0111 */
20
21	"bitblt",		/* 1000 */
22	"iload",		/* 1001 */
23	"reserved",		/* 1010 */
24	"reserved",		/* 1011 */
25
26	"fbitblt",		/* 1100 */
27	"iload scale",		/* 1101 */
28	"reserved",		/* 1110 */
29	"iload filter"		/* 1111 */
30};
31
32const char *atype[] = {
33	"rpl - Write (Replace)",		/* 000 */
34	"rstr - read-modify-write (raster)",	/* 001 */
35	"reserved",	/* 010 */
36	"z1 - depth mode with gouraud",	/* 011 */
37	"blk - block write mode",	/* 100 */
38	"reserved",	/* 101 */
39	"reserved",	/* 110 */
40	"I - Gouraud (with depth compare)"	/* 111 */
41};
42
43const char *zmode[] = {
44	"NOZCMP - always",		/* 000 */
45	"reserved",	/* 001 */
46	"ZE - depth =",	/* 010 */
47	"zne - depth !=",	/* 011 */
48	"zlt",	/* 100 */
49	"zlte",	/* 101 */
50	"zgt",	/* 110 */
51	"zgte"	/* 111 */
52};
53
54const char *bop[] = {
55	"0",		/* 0000 */
56	"~(D|S)",	/* 0001 */
57	"D & ~S",	/* 0010 */
58	"~S",		/* 0011 */
59
60	"(~D) & S",	/* 0100 */
61	"~D",		/* 0101 */
62	"D ^ S",	/* 0110 */
63	"~ (D & S)",	/* 0111 */
64
65	"D & S",	/* 1000 */
66	"~(D^S)",	/* 1001 */
67	"D",		/* 1010 */
68	"D | ~S",	/* 1011 */
69
70	"S",		/* 1100 */
71	"(~D) | S",	/* 1101 */
72	"D | S",	/* 1110 */
73	"1"		/* 1111 */
74};
75
76const char *bitmod[] = {
77	"BMONOLEF - Source is mono, or if iload, source is little endian",	/* 0000 */
78	"BPLAN - source is mono from one plane",				/* 0001 */
79	"BFCOL - source is colour, and is formatted from host",			/* 0010 */
80	"BU32BGR - source is colour. For ILOAD, it's in 32bpp, BGR format",	/* 0011 */
81
82	"BMONOWEF - source is mono, or if iload, source is windows format",	/* 0100 */
83	"error! no such mode",	/* 0101 */
84	"error! no such mode",	/* 0110 */
85	"BU32RGB - source is colour, or if iload, source is 32 bpp RGB",	/* 0111 */
86
87	"error! no such mode",	/* 1000 */
88	"error! no such mode",	/* 1001 */
89	"error! no such mode",	/* 1010 */
90	"BU24BGR - source is colour, of if iload, source is 24 bpp BGR",	/* 1011 */
91
92	"error! no such mode",	/* 1100 */
93	"error! no such mode",	/* 1101 */
94	"BUYUV - source is color, or for ILOAD, it's in 4:2:2 YUV format",	/* 1110 */
95	"BU24RGB - source is color, or for ILOAD, it's in 24 bpp RGB"		/* 1111 */
96};
97
98int main(int argc, char **argv)
99{
100	unsigned long val, tmp;
101
102	if ( argc != 2 )
103	{
104		fprintf(stderr, "usage: %s hexval\n", argv[0]);
105		return 1;
106	}
107
108	val = strtoul(argv[1], NULL, 16);
109
110	printf("the val is : %lu\n", val);
111
112	/* opcode */
113
114	tmp = val & 0x0f;
115
116	printf("opcode: %s\n", opcodes[tmp]);
117
118	tmp = ( val >> 4 ) & 0x7;
119
120	printf("atype: %s\n", atype[tmp]);
121
122
123	if ( val & 128 )
124		printf("xy bitblt\n");
125	else
126		printf("linear bitblt\n");
127
128	tmp = ( val >> 8 ) & 7;
129
130	printf("zmode: %s\n", zmode[tmp]);
131
132
133	if ( val & ( 1 << 11 ) )
134		printf("solid line or constant trapezoid\n");
135	else
136		printf("src0 - 3 may need to be loaded");
137
138	if ( val & ( 1 << 12 ))
139		printf("ar0-ar6 = 0\n");
140	else
141		printf("you may need to set ar0-6.\n");
142
143
144	if ( val & ( 1 << 13 ))
145		printf("sgn = 0\n");
146	else
147		printf("sgn is not affected\n");
148
149
150	if ( val & ( 1 << 14 ))
151		printf("shift = 0\n");
152	else
153		printf("shift is not affected\n");
154
155
156	tmp = (val>>16) & 0x0f;
157
158	if ( ((val >> 4) & 7) == 4 && tmp != 0x0c )
159		printf("Error! Block (BLK) atype and non-source binary op chosen. Replace (S) bop will be used.\n");
160
161	printf("bop = %s, where ~ = bitwise complement, ^ = xor\n", bop[tmp]);
162
163	if ( ((val >> 20) & 0x0f) == 0 )
164		printf("opaque object\n");
165	else
166		printf("partially opaque object\n");
167
168	tmp = (val >> 25) & 0x0f;
169	printf("bitmod: %s\n", bitmod[tmp]);
170
171	if ((val >> 29) & 0x01)
172		printf("patterning enabled\n");
173	else
174		printf("patterning disabled\n");
175
176	if ((val >> 30) & 0x01)
177		printf("background colour is transparent\n");
178	else
179		printf("background colour is opaque\n");
180
181	return 0;
182}
183