rsCppUtils.h revision c04fc654149afa4ec8ba78e23787d3e148adbe2a
1/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ANDROID_RS_CPP_UTILS_H
18#define ANDROID_RS_CPP_UTILS_H
19
20#if !defined(RS_SERVER) && !defined(RS_COMPATIBILITY_LIB)
21#include <utils/Log.h>
22#include <cutils/atomic.h>
23#endif
24
25#include <stdint.h>
26
27#include <stdlib.h>
28#include <pthread.h>
29#include <time.h>
30
31#include <math.h>
32
33#ifdef RS_COMPATIBILITY_LIB
34#include <android/log.h>
35#endif
36
37#if defined(RS_SERVER) || defined(RS_COMPATIBILITY_LIB)
38
39#define ATRACE_TAG
40#define ATRACE_CALL(...)
41
42#include <string>
43#include <vector>
44#include <algorithm>
45
46#define ALOGE(...) \
47    __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__);
48#define ALOGW(...) \
49    __android_log_print(ANDROID_LOG_WARN, LOG_TAG, __VA_ARGS__);
50#define ALOGD(...) \
51    __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__);
52#define ALOGV(...) \
53    __android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, __VA_ARGS__);
54
55typedef int64_t nsecs_t;  // nano-seconds
56
57enum {
58    SYSTEM_TIME_REALTIME = 0,  // system-wide realtime clock
59    SYSTEM_TIME_MONOTONIC = 1, // monotonic time since unspecified starting point
60    SYSTEM_TIME_PROCESS = 2,   // high-resolution per-process clock
61    SYSTEM_TIME_THREAD = 3,    // high-resolution per-thread clock
62};
63
64static inline nsecs_t systemTime(int clock)
65{
66#if defined(__linux__)
67    static const clockid_t clocks[] = {
68            CLOCK_REALTIME,
69            CLOCK_MONOTONIC,
70            CLOCK_PROCESS_CPUTIME_ID,
71            CLOCK_THREAD_CPUTIME_ID
72    };
73    struct timespec t;
74    t.tv_sec = t.tv_nsec = 0;
75    clock_gettime(clocks[clock], &t);
76    return nsecs_t(t.tv_sec)*1000000000LL + t.tv_nsec;
77#else
78    // we don't support the clocks here.
79    struct timeval t;
80    t.tv_sec = t.tv_usec = 0;
81    gettimeofday(&t, nullptr);
82    return nsecs_t(t.tv_sec)*1000000000LL + nsecs_t(t.tv_usec)*1000LL;
83#endif
84}
85
86static inline nsecs_t nanoseconds_to_milliseconds(nsecs_t secs)
87{
88    return secs/1000000;
89}
90
91
92#endif // RS_SERVER || RS_COMPATIBILITY_LIB
93
94namespace android {
95namespace renderscript {
96
97const char * rsuCopyString(const char *name);
98const char * rsuCopyString(const char *name, size_t len);
99
100#if 1
101#define rsAssert(v) do {if(!(v)) ALOGE("rsAssert failed: %s, in %s at %i", #v, __FILE__, __LINE__);} while (0)
102#else
103#define rsAssert(v) while (0)
104#endif
105
106template<typename T>
107T rsMin(T in1, T in2)
108{
109    if (in1 > in2) {
110        return in2;
111    }
112    return in1;
113}
114
115template<typename T>
116T rsMax(T in1, T in2) {
117    if (in1 < in2) {
118        return in2;
119    }
120    return in1;
121}
122
123template<typename T>
124T rsFindHighBit(T val) {
125    uint32_t bit = 0;
126    while (val > 1) {
127        bit++;
128        val>>=1;
129    }
130    return bit;
131}
132
133template<typename T>
134bool rsIsPow2(T val) {
135    return (val & (val-1)) == 0;
136}
137
138template<typename T>
139T rsHigherPow2(T v) {
140    if (rsIsPow2(v)) {
141        return v;
142    }
143    return 1 << (rsFindHighBit(v) + 1);
144}
145
146template<typename T>
147T rsLowerPow2(T v) {
148    if (rsIsPow2(v)) {
149        return v;
150    }
151    return 1 << rsFindHighBit(v);
152}
153
154template<typename T>
155T rsRound(T v, unsigned int r) {
156    // Only valid for rounding up to powers of 2.
157    if ((r & (r - 1)) != 0) {
158        rsAssert(false && "Must be power of 2 for rounding up");
159        return v;
160    }
161    T res = v + (r - 1);
162    if (res < v) {
163        rsAssert(false && "Overflow of rounding operation");
164        return v;
165    }
166    res &= ~(r - 1);
167    return res;
168}
169
170static inline uint16_t rs888to565(uint32_t r, uint32_t g, uint32_t b) {
171    uint16_t t = 0;
172    t |= b >> 3;
173    t |= (g >> 2) << 5;
174    t |= (r >> 3) << 11;
175    return t;
176}
177
178static inline uint16_t rsBoxFilter565(uint16_t i1, uint16_t i2, uint16_t i3, uint16_t i4) {
179    uint32_t r = ((i1 & 0x1f) + (i2 & 0x1f) + (i3 & 0x1f) + (i4 & 0x1f));
180    uint32_t g = ((i1 >> 5) & 0x3f) + ((i2 >> 5) & 0x3f) + ((i3 >> 5) & 0x3f) + ((i4 >> 5) & 0x3f);
181    uint32_t b = ((i1 >> 11) + (i2 >> 11) + (i3 >> 11) + (i4 >> 11));
182    return (r >> 2) | ((g >> 2) << 5) | ((b >> 2) << 11);
183}
184
185static inline uint32_t rsBoxFilter8888(uint32_t i1, uint32_t i2, uint32_t i3, uint32_t i4) {
186    uint32_t r = (i1 & 0xff) +         (i2 & 0xff) +         (i3 & 0xff) +         (i4 & 0xff);
187    uint32_t g = ((i1 >> 8) & 0xff) +  ((i2 >> 8) & 0xff) +  ((i3 >> 8) & 0xff) +  ((i4 >> 8) & 0xff);
188    uint32_t b = ((i1 >> 16) & 0xff) + ((i2 >> 16) & 0xff) + ((i3 >> 16) & 0xff) + ((i4 >> 16) & 0xff);
189    uint32_t a = ((i1 >> 24) & 0xff) + ((i2 >> 24) & 0xff) + ((i3 >> 24) & 0xff) + ((i4 >> 24) & 0xff);
190    return (r >> 2) | ((g >> 2) << 8) | ((b >> 2) << 16) | ((a >> 2) << 24);
191}
192
193}
194}
195
196#endif //ANDROID_RS_OBJECT_BASE_H
197