1 /*
2 * Copyright (c) 2022 HiSilicon (Shanghai) Technologies CO., LIMITED.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #ifndef __HI_MATH_H__
17 #define __HI_MATH_H__
18
19 #include "hi_type.h"
20
21 #ifdef __cplusplus
22 #if __cplusplus
23 extern "C" {
24 #endif
25 #endif /* __cplusplus */
26
27 /*
28 * ABS(x) absolute value of x
29 * SIGN(x) sign of x
30 * CMP(x,y) 0 if x == y; 1 if x > y; -1 if x < y
31 */
32 #define ABS(x) ((x) >= 0 ? (x) : (-(x)))
33 #define _SIGN(x) ((x) >= 0 ? 1 : (-1))
34 #define CMP(x, y) (((x) == (y)) ? 0 : (((x) > (y)) ? 1 : (-1)))
35
36 /*
37 * MAX2(x,y) maximum of x and y
38 * MIN2(x,y) minimum of x and y
39 * MAX3(x,y,z) maximum of x, y and z
40 * MIN3(x,y,z) minimum of x, y and z
41 * MEDIAN(x,y,z) median of x,y,z
42 * MEAN2(x,y) mean of x,y
43 */
44 #define MAX2(x, y) ((x) > (y) ? (x) : (y))
45 #define MIN2(x, y) ((x) < (y) ? (x) : (y))
46 #define MAX3(x, y, z) ((x) > (y) ? MAX2(x, z) : MAX2(y, z))
47 #define MIN3(x, y, z) ((x) < (y) ? MIN2(x, z) : MIN2(y, z))
48 #define MEDIAN(x, y, z) (((x) + (y) + (z) - MAX3(x, y, z)) - MIN3(x, y, z))
49 #define MEAN2(x, y) (((x) + (y)) >> 1)
50
51 /*
52 * CLIP3(x,min,max) clip x within [min,max]
53 * WRAP_MAX(x,max,min) wrap to min if x equal max
54 * WRAP_MIN(x,min,max) wrap to max if x equal min
55 * VALUE_BETWEEN(x,min.max) True if x is between [min,max] inclusively.
56 */
57 #define CLIP_MIN(x, min) (((x) >= (min)) ? (x) : (min))
58 #define CLIP3(x, min, max) ((x) < (min) ? (min) : ((x) > (max) ? (max) :(x)))
59 #define CLIP_MAX(x, max) ((x) > (max) ? (max) : (x))
60 #define WRAP_MAX(x, max, min) ((x) >= (max) ? (min) : (x))
61 #define WRAP_MIN(x, min, max) ((x) <= (min) ? (max) : (x))
62 #define VALUE_BETWEEN(x, min, max) (((x) >= (min)) && ((x) <= (max)))
63
64 /*
65 * MULTI_OF_2_POWER(x,a) whether x is multiple of a(a must be power of 2)
66 * HI_ALIGN_DOWN(x,a) floor x to multiple of a(a must be power of 2)
67 * HI_ALIGN_UP(x, a) align x to multiple of a
68 *
69 * Example:
70 * HI_ALIGN_UP(5,4) = 8
71 * HI_ALIGN_DOWN(5,4) = 4
72 */
73 #define MULTI_OF_2_POWER(x, a) (!((x) & ((a) - 1)))
74 #define HICEILING(x, a) (((x) + (a) - 1) / (a))
75
76 #define HI_ALIGN_UP(x, a) ((((x) + ((a) - 1)) / (a)) * (a))
77 #define HI_ALIGN_DOWN(x, a) (((x) / (a)) * (a))
78 #define ALIGN_UP(x, a) ((((x) + ((a) - 1)) / (a)) * (a))
79 #define ALIGN_DOWN(x, a) (((x) / (a)) * (a))
80
81 #define DIV_UP(x, a) (((x) + ((a) - 1)) / (a))
82
83 /*
84 * Get the span between two unsigned number, such as
85 * SPAN(HI_U32, 200, 100) is 200 - 100 = 100
86 * SPAN(HI_U32, 100, 200) is 0xFFFFFFFF - 200 + 100
87 * SPAN(HI_U64, 100, 200) is 0xFFFFFFFFFFFFFFFF - 200 + 100
88 */
89 #define SPAN(type, begin, end) \
90 ({ \
91 type b = (begin); \
92 type e = (end); \
93 (type)((b >= e) ? (b - e) : (b + ((~((type)0)) - e))); \
94 })
95
96 /*
97 * ENDIAN32(x,y) little endian <---> big endian
98 * IS_LITTLE_END() whether the system is little end mode
99 */
100 #define ENDIAN32(x) \
101 (((x) << 24) | \
102 (((x) & 0x0000ff00) << 8) | \
103 (((x) & 0x00ff0000) >> 8) | \
104 (((x) >> 24) & 0x000000ff))
105
106 /*
107 * ENDIAN16(x,y) little endian <---> big endian
108 * IS_LITTLE_END() whether the system is little end mode
109 */
110 #define ENDIAN16(x) ((((x) << 8) & 0xff00) | (((x) >> 8) & 255))
111
IS_LITTLE_END(void)112 __inline static HI_BOOL IS_LITTLE_END(void)
113 {
114 union unEND_TEST_U {
115 HI_CHAR cTest[4];
116 HI_U32 u32Test;
117 } unEndTest;
118
119 unEndTest.cTest[0] = 0x01;
120 unEndTest.cTest[1] = 0x02;
121 unEndTest.cTest[2] = 0x03;
122 unEndTest.cTest[3] = 0x04;
123
124 return (unEndTest.u32Test > 0x01020304) ? (HI_TRUE) : (HI_FALSE);
125 }
126
127 /*
128 * FRACTION32(de,nu) fraction: nu(minator) / de(nominator).
129 * NUMERATOR32(x) of x(x is fraction)
130 * DENOMINATOR32(x) Denominator of x(x is fraction)
131
132 * represent fraction in 32 bit. LSB 16 is numerator, MSB 16 is denominator
133 * It is integer if denominator is 0.
134 */
135 #define FRACTION32(de, nu) (((de) << 16) | (nu))
136 #define NUMERATOR32(x) ((x) & 0xffff)
137 #define DENOMINATOR32(x) ((x) >> 16)
138
139 /*
140 * RGB(r,g,b) assemble the r,g,b to 24bit color
141 * RGB_R(c) get RED from 24bit color
142 * RGB_G(c) get GREEN from 24bit color
143 * RGB_B(c) get BLUE from 24bit color
144 */
145 #define RGB(r, g, b) ((((r) & 0xff) << 16) | (((g) & 0xff) << 8) | ((b) & 0xff))
146 #define RGB_R(c) (((c) & 0xff0000) >> 16)
147 #define RGB_G(c) (((c) & 0xff00) >> 8)
148 #define RGB_B(c) ((c) & 0xff)
149
150 /*
151 * YUV(y,u,v) assemble the y,u,v to 30bit color
152 * YUV_Y(c) get Y from 30bit color
153 * YUV_U(c) get U from 30bit color
154 * YUV_V(c) get V from 30bit color
155 */
156 #define YUV(y, u, v) ((((y) & 0x03ff) << 20) | (((u) & 0x03ff) << 10) | ((v) & 0x03ff))
157 #define YUV_Y(c) (((c) & 0x3ff00000) >> 20)
158 #define YUV_U(c) (((c) & 0x000ffc00) >> 10)
159 #define YUV_V(c) ((c) & 0x000003ff)
160
161 /*
162 * YUV_8BIT(y,u,v) assemble the y,u,v to 24bit color
163 * YUV_8BIT_Y(c) get Y from 24bit color
164 * YUV_8BIT_U(c) get U from 24bit color
165 * YUV_8BIT_V(c) get V from 24bit color
166 */
167 #define YUV_8BIT(y, u, v) ((((y) & 0xff) << 16) | (((u) & 0xff) << 8) | ((v) & 0xff))
168 #define YUV_8BIT_Y(c) (((c) & 0xff0000) >> 16)
169 #define YUV_8BIT_U(c) (((c) & 0xff00) >> 8)
170 #define YUV_8BIT_V(c) ((c) & 0xff)
171
172 /*
173 * Rgb2Yc(r, g, b, *y, *u, *u) convert r,g,b to y,u,v
174 * Rgb2Yuv(rgb) convert rgb to yuv
175 */
Rgb2Yc(HI_U16 r,HI_U16 g,HI_U16 b,HI_U16 * py,HI_U16 * pcb,HI_U16 * pcr)176 __inline static HI_VOID Rgb2Yc(HI_U16 r, HI_U16 g, HI_U16 b, HI_U16 *py, HI_U16 *pcb, HI_U16 *pcr)
177 {
178 /* Y */
179 *py = (HI_U16)((((r * 66 + g * 129 + b * 25) >> 8) + 16) << 2);
180
181 /* Cb */
182 *pcb = (HI_U16)(((((b * 112 - r * 38) - g * 74) >> 8) + 128) << 2);
183
184 /* Cr */
185 *pcr = (HI_U16)(((((r * 112 - g * 94) - b * 18) >> 8) + 128) << 2);
186 }
187
Rgb2Yuv(HI_U32 u32Rgb)188 __inline static HI_U32 Rgb2Yuv(HI_U32 u32Rgb)
189 {
190 HI_U16 y, u, v;
191
192 Rgb2Yc(RGB_R(u32Rgb), RGB_G(u32Rgb), RGB_B(u32Rgb), &y, &u, &v);
193
194 return YUV(y, u, v);
195 }
196
Rgb2Yc_full(HI_U16 r,HI_U16 g,HI_U16 b,HI_U16 * py,HI_U16 * pcb,HI_U16 * pcr)197 __inline static HI_VOID Rgb2Yc_full(HI_U16 r, HI_U16 g, HI_U16 b, HI_U16 *py, HI_U16 *pcb, HI_U16 *pcr)
198 {
199 HI_U16 py_temp, pcb_temp, pcr_temp;
200
201 py_temp = (HI_U16)(((r * 76 + g * 150 + b * 29) >> 8) * 4);
202 pcb_temp = (HI_U16)(CLIP_MIN(((((b * 130 - r * 44) - g * 86) >> 8) + 128), 0) * 4);
203 pcr_temp = (HI_U16)(CLIP_MIN(((((r * 130 - g * 109) - b * 21) >> 8) + 128), 0) * 4);
204
205 *py = MAX2(MIN2(py_temp, 1023), 0);
206 *pcb = MAX2(MIN2(pcb_temp, 1023), 0);
207 *pcr = MAX2(MIN2(pcr_temp, 1023), 0);
208 }
209
Rgb2Yuv_full(HI_U32 u32Rgb)210 __inline static HI_U32 Rgb2Yuv_full(HI_U32 u32Rgb)
211 {
212 HI_U16 y, u, v;
213
214 Rgb2Yc_full(RGB_R(u32Rgb), RGB_G(u32Rgb), RGB_B(u32Rgb), &y, &u, &v);
215
216 return YUV(y, u, v);
217 }
218
219 /*
220 * Rgb2Yc_8BIT(r, g, b, *y, *u, *u) convert r,g,b to y,u,v
221 * Rgb2Yuv_8BIT(rgb) convert rgb to yuv
222 */
Rgb2Yc_8BIT(HI_U8 r,HI_U8 g,HI_U8 b,HI_U8 * py,HI_U8 * pcb,HI_U8 * pcr)223 __inline static HI_VOID Rgb2Yc_8BIT(HI_U8 r, HI_U8 g, HI_U8 b, HI_U8 *py, HI_U8 *pcb, HI_U8 *pcr)
224 {
225 /* Y */
226 *py = (HI_U8)(((r * 66 + g * 129 + b * 25) >> 8) + 16);
227
228 /* Cb */
229 *pcb = (HI_U8)((((b * 112 - r * 38) - g * 74) >> 8) + 128);
230
231 /* Cr */
232 *pcr = (HI_U8)((((r * 112 - g * 94) - b * 18) >> 8) + 128);
233 }
234
Rgb2Yuv_8BIT(HI_U32 u32Rgb)235 __inline static HI_U32 Rgb2Yuv_8BIT(HI_U32 u32Rgb)
236 {
237 HI_U8 y, u, v;
238
239 Rgb2Yc_8BIT(RGB_R(u32Rgb), RGB_G(u32Rgb), RGB_B(u32Rgb), &y, &u, &v);
240
241 return YUV_8BIT(y, u, v);
242 }
243
Rgb2Yc_full_8BIT(HI_U8 r,HI_U8 g,HI_U8 b,HI_U8 * py,HI_U8 * pcb,HI_U8 * pcr)244 __inline static HI_VOID Rgb2Yc_full_8BIT(HI_U8 r, HI_U8 g, HI_U8 b, HI_U8 *py, HI_U8 *pcb, HI_U8 *pcr)
245 {
246 HI_S16 py_temp, pcb_temp, pcr_temp;
247
248 py_temp = (r * 76 + g * 150 + b * 29) >> 8;
249 pcb_temp = (((b * 130 - r * 44) - g * 86) >> 8) + 128;
250 pcr_temp = (((r * 130 - g * 109) - b * 21) >> 8) + 128;
251
252 *py = MAX2(MIN2(py_temp, 255), 0);
253 *pcb = MAX2(MIN2(pcb_temp, 255), 0);
254 *pcr = MAX2(MIN2(pcr_temp, 255), 0);
255 }
256
Rgb2Yuv_full_8BIT(HI_U32 u32Rgb)257 __inline static HI_U32 Rgb2Yuv_full_8BIT(HI_U32 u32Rgb)
258 {
259 HI_U8 y, u, v;
260
261 Rgb2Yc_full_8BIT(RGB_R(u32Rgb), RGB_G(u32Rgb), RGB_B(u32Rgb), &y, &u, &v);
262
263 return YUV_8BIT(y, u, v);
264 }
265
266 /*
267 * FpsControl Using Sample:
268 * FPS_CTRL_S g_stFpsCtrl;
269 *
270 * Take 12 frame uniform in 25.
271 * InitFps(&g_stFpsCtrl, 25, 12);
272 *
273 * {
274 * if(FpsControl(&g_stFpsCtrl)) printf("Yes, this frame should be token");
275 * }
276 *
277 */
278 typedef struct hiFPS_CTRL_S {
279 HI_U32 u32Ffps; /* Full frame rate */
280 HI_U32 u32Tfps; /* Target frame rate */
281 HI_U32 u32FrmKey; /* update key frame */
282 } FPS_CTRL_S;
283
InitFps(FPS_CTRL_S * pFrmCtrl,HI_U32 u32FullFps,HI_U32 u32TagFps)284 __inline static HI_VOID InitFps(FPS_CTRL_S *pFrmCtrl, HI_U32 u32FullFps, HI_U32 u32TagFps)
285 {
286 pFrmCtrl->u32Ffps = u32FullFps;
287 pFrmCtrl->u32Tfps = u32TagFps;
288 pFrmCtrl->u32FrmKey = 0;
289 }
290
FpsControl(FPS_CTRL_S * pFrmCtrl)291 __inline static HI_BOOL FpsControl(FPS_CTRL_S *pFrmCtrl)
292 {
293 HI_BOOL bReturn = HI_FALSE;
294
295 pFrmCtrl->u32FrmKey += pFrmCtrl->u32Tfps;
296 if (pFrmCtrl->u32FrmKey >= pFrmCtrl->u32Ffps) {
297 pFrmCtrl->u32FrmKey -= pFrmCtrl->u32Ffps;
298 bReturn = HI_TRUE;
299 }
300
301 return bReturn;
302 }
303
GetLowAddr(HI_U64 u64Phyaddr)304 __inline static HI_U32 GetLowAddr(HI_U64 u64Phyaddr)
305 {
306 return (HI_U32)u64Phyaddr;
307 }
308
GetHighAddr(HI_U64 u64Phyaddr)309 __inline static HI_U32 GetHighAddr(HI_U64 u64Phyaddr)
310 {
311 return (HI_U32)(u64Phyaddr >> 32);
312 }
313
314 #define hi_usleep(usec) \
315 do { \
316 usleep(usec); \
317 } while (0)
318
319 #ifdef __cplusplus
320 #if __cplusplus
321 }
322 #endif
323 #endif /* __cplusplus */
324
325 #endif /* __HI_MATH_H__ */
326
327