pixman-combine64.h@ 61386

最後變更在這個檔案從61386是 22660,由 vboxsync 提交於 15 年前
export more X11 stuff to OSE
屬性 svn:eol-style 設為 `native`
檔案大小: 5.4 KB

行
1	/* WARNING: This file is generated by combine.pl from combine.inc.
2	Please edit one of those files rather than this one. */
3
4	#line 1 "pixman-combine.c.template"
5
6	#define COMPONENT_SIZE 16
7	#define MASK 0xffffULL
8	#define ONE_HALF 0x8000ULL
9
10	#define A_SHIFT 16 * 3
11	#define R_SHIFT 16 * 2
12	#define G_SHIFT 16
13	#define A_MASK 0xffff000000000000ULL
14	#define R_MASK 0xffff00000000ULL
15	#define G_MASK 0xffff0000ULL
16
17	#define RB_MASK 0xffff0000ffffULL
18	#define AG_MASK 0xffff0000ffff0000ULL
19	#define RB_ONE_HALF 0x800000008000ULL
20	#define RB_MASK_PLUS_ONE 0x10000000010000ULL
21
22	#define ALPHA_16(x) ((x) >> A_SHIFT)
23	#define RED_16(x) (((x) >> R_SHIFT) & MASK)
24	#define GREEN_16(x) (((x) >> G_SHIFT) & MASK)
25	#define BLUE_16(x) ((x) & MASK)
26
27	/*
28	* Helper macros.
29	*/
30
31	#define MUL_UN16(a, b, t) \
32	((t) = (a) * (b) + ONE_HALF, ((((t) >> G_SHIFT ) + (t) ) >> G_SHIFT ))
33
34	#define DIV_UN16(a, b) \
35	(((uint32_t) (a) * MASK) / (b))
36
37	#define ADD_UN16(x, y, t) \
38	((t) = x + y, \
39	(uint64_t) (uint16_t) ((t) \| (0 - ((t) >> G_SHIFT))))
40
41	#define DIV_ONE_UN16(x) \
42	(((x) + ONE_HALF + (((x) + ONE_HALF) >> G_SHIFT)) >> G_SHIFT)
43
44	/*
45	* The methods below use some tricks to be able to do two color
46	* components at the same time.
47	*/
48
49	/*
50	* x_rb = (x_rb * a) / 255
51	*/
52	#define UN16_rb_MUL_UN16(x, a, t) \
53	do \
54	{ \
55	t = ((x) & RB_MASK) * (a); \
56	t += RB_ONE_HALF; \
57	x = (t + ((t >> G_SHIFT) & RB_MASK)) >> G_SHIFT; \
58	x &= RB_MASK; \
59	} while (0)
60
61	/*
62	* x_rb = min (x_rb + y_rb, 255)
63	*/
64	#define UN16_rb_ADD_UN16_rb(x, y, t) \
65	do \
66	{ \
67	t = ((x) + (y)); \
68	t \|= RB_MASK_PLUS_ONE - ((t >> G_SHIFT) & RB_MASK); \
69	x = (t & RB_MASK); \
70	} while (0)
71
72	/*
73	* x_rb = (x_rb * a_rb) / 255
74	*/
75	#define UN16_rb_MUL_UN16_rb(x, a, t) \
76	do \
77	{ \
78	t = (x & MASK) * (a & MASK); \
79	t \|= (x & R_MASK) * ((a >> R_SHIFT) & MASK); \
80	t += RB_ONE_HALF; \
81	t = (t + ((t >> G_SHIFT) & RB_MASK)) >> G_SHIFT; \
82	x = t & RB_MASK; \
83	} while (0)
84
85	/*
86	* x_c = (x_c * a) / 255
87	*/
88	#define UN16x4_MUL_UN16(x, a) \
89	do \
90	{ \
91	uint64_t r1, r2, t; \
92	\
93	r1 = (x); \
94	UN16_rb_MUL_UN16 (r1, a, t); \
95	\
96	r2 = (x) >> G_SHIFT; \
97	UN16_rb_MUL_UN16 (r2, a, t); \
98	\
99	x = r1 \| (r2 << G_SHIFT); \
100	} while (0)
101
102	/*
103	* x_c = (x_c * a) / 255 + y_c
104	*/
105	#define UN16x4_MUL_UN16_ADD_UN16x4(x, a, y) \
106	do \
107	{ \
108	uint64_t r1, r2, r3, t; \
109	\
110	r1 = (x); \
111	r2 = (y) & RB_MASK; \
112	UN16_rb_MUL_UN16 (r1, a, t); \
113	UN16_rb_ADD_UN16_rb (r1, r2, t); \
114	\
115	r2 = (x) >> G_SHIFT; \
116	r3 = ((y) >> G_SHIFT) & RB_MASK; \
117	UN16_rb_MUL_UN16 (r2, a, t); \
118	UN16_rb_ADD_UN16_rb (r2, r3, t); \
119	\
120	x = r1 \| (r2 << G_SHIFT); \
121	} while (0)
122
123	/*
124	* x_c = (x_c * a + y_c * b) / 255
125	*/
126	#define UN16x4_MUL_UN16_ADD_UN16x4_MUL_UN16(x, a, y, b) \
127	do \
128	{ \
129	uint64_t r1, r2, r3, t; \
130	\
131	r1 = x; \
132	r2 = y; \
133	UN16_rb_MUL_UN16 (r1, a, t); \
134	UN16_rb_MUL_UN16 (r2, b, t); \
135	UN16_rb_ADD_UN16_rb (r1, r2, t); \
136	\
137	r2 = (x >> G_SHIFT); \
138	r3 = (y >> G_SHIFT); \
139	UN16_rb_MUL_UN16 (r2, a, t); \
140	UN16_rb_MUL_UN16 (r3, b, t); \
141	UN16_rb_ADD_UN16_rb (r2, r3, t); \
142	\
143	x = r1 \| (r2 << G_SHIFT); \
144	} while (0)
145
146	/*
147	* x_c = (x_c * a_c) / 255
148	*/
149	#define UN16x4_MUL_UN16x4(x, a) \
150	do \
151	{ \
152	uint64_t r1, r2, r3, t; \
153	\
154	r1 = x; \
155	r2 = a; \
156	UN16_rb_MUL_UN16_rb (r1, r2, t); \
157	\
158	r2 = x >> G_SHIFT; \
159	r3 = a >> G_SHIFT; \
160	UN16_rb_MUL_UN16_rb (r2, r3, t); \
161	\
162	x = r1 \| (r2 << G_SHIFT); \
163	} while (0)
164
165	/*
166	* x_c = (x_c * a_c) / 255 + y_c
167	*/
168	#define UN16x4_MUL_UN16x4_ADD_UN16x4(x, a, y) \
169	do \
170	{ \
171	uint64_t r1, r2, r3, t; \
172	\
173	r1 = x; \
174	r2 = a; \
175	UN16_rb_MUL_UN16_rb (r1, r2, t); \
176	r2 = y & RB_MASK; \
177	UN16_rb_ADD_UN16_rb (r1, r2, t); \
178	\
179	r2 = (x >> G_SHIFT); \
180	r3 = (a >> G_SHIFT); \
181	UN16_rb_MUL_UN16_rb (r2, r3, t); \
182	r3 = (y >> G_SHIFT) & RB_MASK; \
183	UN16_rb_ADD_UN16_rb (r2, r3, t); \
184	\
185	x = r1 \| (r2 << G_SHIFT); \
186	} while (0)
187
188	/*
189	* x_c = (x_c * a_c + y_c * b) / 255
190	*/
191	#define UN16x4_MUL_UN16x4_ADD_UN16x4_MUL_UN16(x, a, y, b) \
192	do \
193	{ \
194	uint64_t r1, r2, r3, t; \
195	\
196	r1 = x; \
197	r2 = a; \
198	UN16_rb_MUL_UN16_rb (r1, r2, t); \
199	r2 = y; \
200	UN16_rb_MUL_UN16 (r2, b, t); \
201	UN16_rb_ADD_UN16_rb (r1, r2, t); \
202	\
203	r2 = x >> G_SHIFT; \
204	r3 = a >> G_SHIFT; \
205	UN16_rb_MUL_UN16_rb (r2, r3, t); \
206	r3 = y >> G_SHIFT; \
207	UN16_rb_MUL_UN16 (r3, b, t); \
208	UN16_rb_ADD_UN16_rb (r2, r3, t); \
209	\
210	x = r1 \| (r2 << G_SHIFT); \
211	} while (0)
212
213	/*
214	x_c = min(x_c + y_c, 255)
215	*/
216	#define UN16x4_ADD_UN16x4(x, y) \
217	do \
218	{ \
219	uint64_t r1, r2, r3, t; \
220	\
221	r1 = x & RB_MASK; \
222	r2 = y & RB_MASK; \
223	UN16_rb_ADD_UN16_rb (r1, r2, t); \
224	\
225	r2 = (x >> G_SHIFT) & RB_MASK; \
226	r3 = (y >> G_SHIFT) & RB_MASK; \
227	UN16_rb_ADD_UN16_rb (r2, r3, t); \
228	\
229	x = r1 \| (r2 << G_SHIFT); \
230	} while (0)

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source: vbox/trunk/src/VBox/Additions/x11/x11include/pixman-0.16.0/pixman-combine64.h@ 61386

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