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 #ifndef MIN2
46 #define MIN2(x, y) ((x) < (y) ? (x) : (y))
47 #endif
48 #define MAX3(x, y, z) ((x) > (y) ? MAX2(x, z) : MAX2(y, z))
49 #define MIN3(x, y, z) ((x) < (y) ? MIN2(x, z) : MIN2(y, z))
50 #define MEDIAN(x, y, z) (((x) + (y) + (z) - MAX3(x, y, z)) - MIN3(x, y, z))
51 #define MEAN2(x, y) (((x) + (y)) >> 1)
52
53 /*
54 * CLIP3(x,min,max) clip x within [min,max]
55 * WRAP_MAX(x,max,min) wrap to min if x equal max
56 * WRAP_MIN(x,min,max) wrap to max if x equal min
57 * VALUE_BETWEEN(x,min.max) True if x is between [min,max] inclusively.
58 */
59 #define CLIP_MIN(x, min) (((x) >= (min)) ? (x) : (min))
60 #define CLIP3(x, min, max) ((x) < (min) ? (min) : ((x) > (max) ? (max) :(x)))
61 #define CLIP_MAX(x, max) ((x) > (max) ? (max) : (x))
62 #define WRAP_MAX(x, max, min) ((x) >= (max) ? (min) : (x))
63 #define WRAP_MIN(x, min, max) ((x) <= (min) ? (max) : (x))
64 #define VALUE_BETWEEN(x, min, max) (((x) >= (min)) && ((x) <= (max)))
65
66 /*
67 * MULTI_OF_2_POWER(x,a) whether x is multiple of a(a must be power of 2)
68 * HI_ALIGN_DOWN(x,a) floor x to multiple of a(a must be power of 2)
69 * HI_ALIGN_UP(x, a) align x to multiple of a
70 *
71 * Example:
72 * HI_ALIGN_UP(5,4) = 8
73 * HI_ALIGN_DOWN(5,4) = 4
74 */
75 #define MULTI_OF_2_POWER(x, a) (!((x) & ((a) - 1)))
76 #define HICEILING(x, a) (((x) + (a) - 1) / (a))
77
78 #define HI_ALIGN_UP(x, a) ((((x) + ((a) - 1)) / (a)) * (a))
79 #define HI_ALIGN_DOWN(x, a) (((x) / (a)) * (a))
80 #define ALIGN_UP(x, a) ((((x) + ((a) - 1)) / (a)) * (a))
81 #define ALIGN_DOWN(x, a) (((x) / (a)) * (a))
82
83 #define DIV_UP(x, a) (((x) + ((a) - 1)) / (a))
84
85 /*
86 * Get the span between two unsigned number, such as
87 * SPAN(HI_U32, 200, 100) is 200 - 100 = 100
88 * SPAN(HI_U32, 100, 200) is 0xFFFFFFFF - 200 + 100
89 * SPAN(HI_U64, 100, 200) is 0xFFFFFFFFFFFFFFFF - 200 + 100
90 */
91 #define SPAN(type, begin, end) \
92 ({ \
93 type b = (begin); \
94 type e = (end); \
95 (type)((b >= e) ? (b - e) : (b + ((~((type)0)) - e))); \
96 })
97
98 /*
99 * ENDIAN32(x,y) little endian <---> big endian
100 * IS_LITTLE_END() whether the system is little end mode
101 */
102 #define ENDIAN32(x) \
103 (((x) << 24) | \
104 (((x) & 0x0000ff00) << 8) | \
105 (((x) & 0x00ff0000) >> 8) | \
106 (((x) >> 24) & 0x000000ff))
107
108 /*
109 * ENDIAN16(x,y) little endian <---> big endian
110 * IS_LITTLE_END() whether the system is little end mode
111 */
112 #define ENDIAN16(x) ((((x) << 8) & 0xff00) | (((x) >> 8) & 255))
113
IS_LITTLE_END(void)114 __inline static HI_BOOL IS_LITTLE_END(void)
115 {
116 union unEND_TEST_U {
117 HI_CHAR cTest[4];
118 HI_U32 u32Test;
119 } unEndTest;
120
121 unEndTest.cTest[0] = 0x01;
122 unEndTest.cTest[1] = 0x02;
123 unEndTest.cTest[2] = 0x03;
124 unEndTest.cTest[3] = 0x04;
125
126 return (unEndTest.u32Test > 0x01020304) ? (HI_TRUE) : (HI_FALSE);
127 }
128
129 /*
130 * FRACTION32(de,nu) fraction: nu(minator) / de(nominator).
131 * NUMERATOR32(x) of x(x is fraction)
132 * DENOMINATOR32(x) Denominator of x(x is fraction)
133
134 * represent fraction in 32 bit. LSB 16 is numerator, MSB 16 is denominator
135 * It is integer if denominator is 0.
136 */
137 #define FRACTION32(de, nu) (((de) << 16) | (nu))
138 #define NUMERATOR32(x) ((x) & 0xffff)
139 #define DENOMINATOR32(x) ((x) >> 16)
140
141 /*
142 * RGB(r,g,b) assemble the r,g,b to 24bit color
143 * RGB_R(c) get RED from 24bit color
144 * RGB_G(c) get GREEN from 24bit color
145 * RGB_B(c) get BLUE from 24bit color
146 */
147 #define RGB(r, g, b) ((((r) & 0xff) << 16) | (((g) & 0xff) << 8) | ((b) & 0xff))
148 #define RGB_R(c) (((c) & 0xff0000) >> 16)
149 #define RGB_G(c) (((c) & 0xff00) >> 8)
150 #define RGB_B(c) ((c) & 0xff)
151
152 /*
153 * YUV(y,u,v) assemble the y,u,v to 30bit color
154 * YUV_Y(c) get Y from 30bit color
155 * YUV_U(c) get U from 30bit color
156 * YUV_V(c) get V from 30bit color
157 */
158 #define YUV(y, u, v) ((((y) & 0x03ff) << 20) | (((u) & 0x03ff) << 10) | ((v) & 0x03ff))
159 #define YUV_Y(c) (((c) & 0x3ff00000) >> 20)
160 #define YUV_U(c) (((c) & 0x000ffc00) >> 10)
161 #define YUV_V(c) ((c) & 0x000003ff)
162
163 /*
164 * YUV_8BIT(y,u,v) assemble the y,u,v to 24bit color
165 * YUV_8BIT_Y(c) get Y from 24bit color
166 * YUV_8BIT_U(c) get U from 24bit color
167 * YUV_8BIT_V(c) get V from 24bit color
168 */
169 #define YUV_8BIT(y, u, v) ((((y) & 0xff) << 16) | (((u) & 0xff) << 8) | ((v) & 0xff))
170 #define YUV_8BIT_Y(c) (((c) & 0xff0000) >> 16)
171 #define YUV_8BIT_U(c) (((c) & 0xff00) >> 8)
172 #define YUV_8BIT_V(c) ((c) & 0xff)
173
174 /*
175 * Rgb2Yc(r, g, b, *y, *u, *u) convert r,g,b to y,u,v
176 * Rgb2Yuv(rgb) convert rgb to yuv
177 */
Rgb2Yc(HI_U16 r,HI_U16 g,HI_U16 b,HI_U16 * py,HI_U16 * pcb,HI_U16 * pcr)178 __inline static HI_VOID Rgb2Yc(HI_U16 r, HI_U16 g, HI_U16 b, HI_U16 *py, HI_U16 *pcb, HI_U16 *pcr)
179 {
180 /* Y */
181 *py = (HI_U16)((((r * 66 + g * 129 + b * 25) >> 8) + 16) << 2);
182
183 /* Cb */
184 *pcb = (HI_U16)(((((b * 112 - r * 38) - g * 74) >> 8) + 128) << 2);
185
186 /* Cr */
187 *pcr = (HI_U16)(((((r * 112 - g * 94) - b * 18) >> 8) + 128) << 2);
188 }
189
Rgb2Yuv(HI_U32 u32Rgb)190 __inline static HI_U32 Rgb2Yuv(HI_U32 u32Rgb)
191 {
192 HI_U16 y, u, v;
193
194 Rgb2Yc(RGB_R(u32Rgb), RGB_G(u32Rgb), RGB_B(u32Rgb), &y, &u, &v);
195
196 return YUV(y, u, v);
197 }
198
Rgb2Yc_full(HI_U16 r,HI_U16 g,HI_U16 b,HI_U16 * py,HI_U16 * pcb,HI_U16 * pcr)199 __inline static HI_VOID Rgb2Yc_full(HI_U16 r, HI_U16 g, HI_U16 b, HI_U16 *py, HI_U16 *pcb, HI_U16 *pcr)
200 {
201 HI_U16 py_temp, pcb_temp, pcr_temp;
202
203 py_temp = (HI_U16)(((r * 76 + g * 150 + b * 29) >> 8) * 4);
204 pcb_temp = (HI_U16)(CLIP_MIN(((((b * 130 - r * 44) - g * 86) >> 8) + 128), 0) * 4);
205 pcr_temp = (HI_U16)(CLIP_MIN(((((r * 130 - g * 109) - b * 21) >> 8) + 128), 0) * 4);
206
207 *py = MAX2(MIN2(py_temp, 1023), 0);
208 *pcb = MAX2(MIN2(pcb_temp, 1023), 0);
209 *pcr = MAX2(MIN2(pcr_temp, 1023), 0);
210 }
211
Rgb2Yuv_full(HI_U32 u32Rgb)212 __inline static HI_U32 Rgb2Yuv_full(HI_U32 u32Rgb)
213 {
214 HI_U16 y, u, v;
215
216 Rgb2Yc_full(RGB_R(u32Rgb), RGB_G(u32Rgb), RGB_B(u32Rgb), &y, &u, &v);
217
218 return YUV(y, u, v);
219 }
220
221 /*
222 * Rgb2Yc_8BIT(r, g, b, *y, *u, *u) convert r,g,b to y,u,v
223 * Rgb2Yuv_8BIT(rgb) convert rgb to yuv
224 */
Rgb2Yc_8BIT(HI_U8 r,HI_U8 g,HI_U8 b,HI_U8 * py,HI_U8 * pcb,HI_U8 * pcr)225 __inline static HI_VOID Rgb2Yc_8BIT(HI_U8 r, HI_U8 g, HI_U8 b, HI_U8 *py, HI_U8 *pcb, HI_U8 *pcr)
226 {
227 /* Y */
228 *py = (HI_U8)(((r * 66 + g * 129 + b * 25) >> 8) + 16);
229
230 /* Cb */
231 *pcb = (HI_U8)((((b * 112 - r * 38) - g * 74) >> 8) + 128);
232
233 /* Cr */
234 *pcr = (HI_U8)((((r * 112 - g * 94) - b * 18) >> 8) + 128);
235 }
236
Rgb2Yuv_8BIT(HI_U32 u32Rgb)237 __inline static HI_U32 Rgb2Yuv_8BIT(HI_U32 u32Rgb)
238 {
239 HI_U8 y, u, v;
240
241 Rgb2Yc_8BIT(RGB_R(u32Rgb), RGB_G(u32Rgb), RGB_B(u32Rgb), &y, &u, &v);
242
243 return YUV_8BIT(y, u, v);
244 }
245
Rgb2Yc_full_8BIT(HI_U8 r,HI_U8 g,HI_U8 b,HI_U8 * py,HI_U8 * pcb,HI_U8 * pcr)246 __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)
247 {
248 HI_S16 py_temp, pcb_temp, pcr_temp;
249
250 py_temp = (r * 76 + g * 150 + b * 29) >> 8;
251 pcb_temp = (((b * 130 - r * 44) - g * 86) >> 8) + 128;
252 pcr_temp = (((r * 130 - g * 109) - b * 21) >> 8) + 128;
253
254 *py = MAX2(MIN2(py_temp, 255), 0);
255 *pcb = MAX2(MIN2(pcb_temp, 255), 0);
256 *pcr = MAX2(MIN2(pcr_temp, 255), 0);
257 }
258
Rgb2Yuv_full_8BIT(HI_U32 u32Rgb)259 __inline static HI_U32 Rgb2Yuv_full_8BIT(HI_U32 u32Rgb)
260 {
261 HI_U8 y, u, v;
262
263 Rgb2Yc_full_8BIT(RGB_R(u32Rgb), RGB_G(u32Rgb), RGB_B(u32Rgb), &y, &u, &v);
264
265 return YUV_8BIT(y, u, v);
266 }
267
268 /*
269 * FpsControl Using Sample:
270 * FPS_CTRL_S g_stFpsCtrl;
271 *
272 * Take 12 frame uniform in 25.
273 * InitFps(&g_stFpsCtrl, 25, 12);
274 *
275 * {
276 * if(FpsControl(&g_stFpsCtrl)) printf("Yes, this frame should be token");
277 * }
278 *
279 */
280 typedef struct hiFPS_CTRL_S {
281 HI_U32 u32Ffps; /* Full frame rate */
282 HI_U32 u32Tfps; /* Target frame rate */
283 HI_U32 u32FrmKey; /* update key frame */
284 } FPS_CTRL_S;
285
InitFps(FPS_CTRL_S * pFrmCtrl,HI_U32 u32FullFps,HI_U32 u32TagFps)286 __inline static HI_VOID InitFps(FPS_CTRL_S *pFrmCtrl, HI_U32 u32FullFps, HI_U32 u32TagFps)
287 {
288 pFrmCtrl->u32Ffps = u32FullFps;
289 pFrmCtrl->u32Tfps = u32TagFps;
290 pFrmCtrl->u32FrmKey = 0;
291 }
292
FpsControl(FPS_CTRL_S * pFrmCtrl)293 __inline static HI_BOOL FpsControl(FPS_CTRL_S *pFrmCtrl)
294 {
295 HI_BOOL bReturn = HI_FALSE;
296
297 pFrmCtrl->u32FrmKey += pFrmCtrl->u32Tfps;
298 if (pFrmCtrl->u32FrmKey >= pFrmCtrl->u32Ffps) {
299 pFrmCtrl->u32FrmKey -= pFrmCtrl->u32Ffps;
300 bReturn = HI_TRUE;
301 }
302
303 return bReturn;
304 }
305
GetLowAddr(HI_U64 u64Phyaddr)306 __inline static HI_U32 GetLowAddr(HI_U64 u64Phyaddr)
307 {
308 return (HI_U32)u64Phyaddr;
309 }
310
GetHighAddr(HI_U64 u64Phyaddr)311 __inline static HI_U32 GetHighAddr(HI_U64 u64Phyaddr)
312 {
313 return (HI_U32)(u64Phyaddr >> 32);
314 }
315
316 #define hi_usleep(usec) \
317 do { \
318 usleep(usec); \
319 } while (0)
320
321 #ifdef __cplusplus
322 #if __cplusplus
323 }
324 #endif
325 #endif /* __cplusplus */
326
327 #endif /* __HI_MATH_H__ */
328
329