rsUtils.h revision 0b575de8ed0b628d84d256f5846500b0385979bd 
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_UTILS_H
18#define ANDROID_RS_UTILS_H
19
20#define LOG_NDEBUG 0
21#define LOG_TAG "RenderScript"
22
23#ifndef RS_SERVER
24#include <utils/Log.h>
25#include <utils/String8.h>
26#include <utils/Vector.h>
27#include <cutils/atomic.h>
28#endif
29
30#include <stdint.h>
31
32#include <stdlib.h>
33#include <pthread.h>
34#include <time.h>
35
36#include <math.h>
37
38#ifdef RS_SERVER
39
40#include <string>
41#include <vector>
42#include <algorithm>
43
44#define ALOGE(...)
45#define ALOGV(...)
46#define ALOGW(...)
47#define ALOGD(...)
48
49namespace android {
50
51    // server has no Vector or String8 classes; implement on top of STL
52    class String8: public std::string {
53    public:
54    String8(const char *ptr) : std::string(ptr) {
55
56        }
57    String8() : std::string() {
58
59        }
60
61        const char* string() const {
62            return this->c_str();
63        }
64
65        void setTo(const char* str, ssize_t len) {
66            this->assign(str, len);
67        }
68        void setTo(const char* str) {
69            this->assign(str);
70        }
71
72    };
73
74    template <class T> class Vector: public std::vector<T> {
75    public:
76        void push(T obj) {
77            this->push_back(obj);
78        }
79        void removeAt(uint32_t index) {
80            this->erase(this->begin() + index);
81        }
82        ssize_t add(const T& obj) {
83            this->push_back(obj);
84            return this->size() - 1;
85        }
86        void setCapacity(ssize_t capacity) {
87            this->resize(capacity);
88        }
89
90        T* editArray() {
91            return this->data();
92        }
93
94        const T* array() {
95            return this->data();
96        }
97
98    };
99
100    template<> class Vector<bool>: public std::vector<char> {
101    public:
102        void push(bool obj) {
103            this->push_back(obj);
104        }
105        void removeAt(uint32_t index) {
106            this->erase(this->begin() + index);
107        }
108        ssize_t add(const bool& obj) {
109            this->push_back(obj);
110            return this->size() - 1;
111        }
112        void setCapacity(ssize_t capacity) {
113            this->resize(capacity);
114        }
115
116        bool* editArray() {
117            return (bool*)this->data();
118        }
119
120        const bool* array() {
121            return (const bool*)this->data();
122        }
123    };
124
125}
126
127#endif // RS_SERVER
128
129namespace android {
130namespace renderscript {
131
132#if 1
133#define rsAssert(v) do {if(!(v)) ALOGE("rsAssert failed: %s, in %s at %i", #v, __FILE__, __LINE__);} while (0)
134#else
135#define rsAssert(v) while (0)
136#endif
137
138template<typename T>
139T rsMin(T in1, T in2)
140{
141    if (in1 > in2) {
142        return in2;
143    }
144    return in1;
145}
146
147template<typename T>
148T rsMax(T in1, T in2) {
149    if (in1 < in2) {
150        return in2;
151    }
152    return in1;
153}
154
155template<typename T>
156T rsFindHighBit(T val) {
157    uint32_t bit = 0;
158    while (val > 1) {
159        bit++;
160        val>>=1;
161    }
162    return bit;
163}
164
165template<typename T>
166bool rsIsPow2(T val) {
167    return (val & (val-1)) == 0;
168}
169
170template<typename T>
171T rsHigherPow2(T v) {
172    if (rsIsPow2(v)) {
173        return v;
174    }
175    return 1 << (rsFindHighBit(v) + 1);
176}
177
178template<typename T>
179T rsLowerPow2(T v) {
180    if (rsIsPow2(v)) {
181        return v;
182    }
183    return 1 << rsFindHighBit(v);
184}
185
186template<typename T>
187T rsRound(T v, unsigned int r) {
188    // Only valid for rounding up to powers of 2.
189    if ((r & (r - 1)) != 0) {
190        rsAssert(false && "Must be power of 2 for rounding up");
191        return v;
192    }
193    T res = v + (r - 1);
194    if (res < v) {
195        rsAssert(false && "Overflow of rounding operation");
196        return v;
197    }
198    res &= ~(r - 1);
199    return res;
200}
201
202static inline uint16_t rs888to565(uint32_t r, uint32_t g, uint32_t b) {
203    uint16_t t = 0;
204    t |= b >> 3;
205    t |= (g >> 2) << 5;
206    t |= (r >> 3) << 11;
207    return t;
208}
209
210static inline uint16_t rsBoxFilter565(uint16_t i1, uint16_t i2, uint16_t i3, uint16_t i4) {
211    uint32_t r = ((i1 & 0x1f) + (i2 & 0x1f) + (i3 & 0x1f) + (i4 & 0x1f));
212    uint32_t g = ((i1 >> 5) & 0x3f) + ((i2 >> 5) & 0x3f) + ((i3 >> 5) & 0x3f) + ((i4 >> 5) & 0x3f);
213    uint32_t b = ((i1 >> 11) + (i2 >> 11) + (i3 >> 11) + (i4 >> 11));
214    return (r >> 2) | ((g >> 2) << 5) | ((b >> 2) << 11);
215}
216
217static inline uint32_t rsBoxFilter8888(uint32_t i1, uint32_t i2, uint32_t i3, uint32_t i4) {
218    uint32_t r = (i1 & 0xff) +         (i2 & 0xff) +         (i3 & 0xff) +         (i4 & 0xff);
219    uint32_t g = ((i1 >> 8) & 0xff) +  ((i2 >> 8) & 0xff) +  ((i3 >> 8) & 0xff) +  ((i4 >> 8) & 0xff);
220    uint32_t b = ((i1 >> 16) & 0xff) + ((i2 >> 16) & 0xff) + ((i3 >> 16) & 0xff) + ((i4 >> 16) & 0xff);
221    uint32_t a = ((i1 >> 24) & 0xff) + ((i2 >> 24) & 0xff) + ((i3 >> 24) & 0xff) + ((i4 >> 24) & 0xff);
222    return (r >> 2) | ((g >> 2) << 8) | ((b >> 2) << 16) | ((a >> 2) << 24);
223}
224
225}
226}
227
228#endif //ANDROID_RS_OBJECT_BASE_H
229
230
231