1 /*
2 * Copyright (C) 2009 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 #include <utils/Log.h>
24
25 #include "rsStream.h"
26
27 #include <utils/String8.h>
28 #include <utils/Vector.h>
29
30 #include <stdlib.h>
31 #include <pthread.h>
32 #include <time.h>
33 #include <cutils/atomic.h>
34
35 #include <math.h>
36
37 namespace android {
38 namespace renderscript {
39
40 #if 1
41 #define rsAssert(v) do {if(!(v)) ALOGE("rsAssert failed: %s, in %s at %i", #v, __FILE__, __LINE__);} while (0)
42 #else
43 #define rsAssert(v) while (0)
44 #endif
45
46 template<typename T>
rsMin(T in1,T in2)47 T rsMin(T in1, T in2)
48 {
49 if (in1 > in2) {
50 return in2;
51 }
52 return in1;
53 }
54
55 template<typename T>
rsMax(T in1,T in2)56 T rsMax(T in1, T in2) {
57 if (in1 < in2) {
58 return in2;
59 }
60 return in1;
61 }
62
63 template<typename T>
rsFindHighBit(T val)64 T rsFindHighBit(T val) {
65 uint32_t bit = 0;
66 while (val > 1) {
67 bit++;
68 val>>=1;
69 }
70 return bit;
71 }
72
73 template<typename T>
rsIsPow2(T val)74 bool rsIsPow2(T val) {
75 return (val & (val-1)) == 0;
76 }
77
78 template<typename T>
rsHigherPow2(T v)79 T rsHigherPow2(T v) {
80 if (rsIsPow2(v)) {
81 return v;
82 }
83 return 1 << (rsFindHighBit(v) + 1);
84 }
85
86 template<typename T>
rsLowerPow2(T v)87 T rsLowerPow2(T v) {
88 if (rsIsPow2(v)) {
89 return v;
90 }
91 return 1 << rsFindHighBit(v);
92 }
93
rs888to565(uint32_t r,uint32_t g,uint32_t b)94 static inline uint16_t rs888to565(uint32_t r, uint32_t g, uint32_t b) {
95 uint16_t t = 0;
96 t |= b >> 3;
97 t |= (g >> 2) << 5;
98 t |= (r >> 3) << 11;
99 return t;
100 }
101
rsBoxFilter565(uint16_t i1,uint16_t i2,uint16_t i3,uint16_t i4)102 static inline uint16_t rsBoxFilter565(uint16_t i1, uint16_t i2, uint16_t i3, uint16_t i4) {
103 uint32_t r = ((i1 & 0x1f) + (i2 & 0x1f) + (i3 & 0x1f) + (i4 & 0x1f));
104 uint32_t g = ((i1 >> 5) & 0x3f) + ((i2 >> 5) & 0x3f) + ((i3 >> 5) & 0x3f) + ((i4 >> 5) & 0x3f);
105 uint32_t b = ((i1 >> 11) + (i2 >> 11) + (i3 >> 11) + (i4 >> 11));
106 return (r >> 2) | ((g >> 2) << 5) | ((b >> 2) << 11);
107 }
108
rsBoxFilter8888(uint32_t i1,uint32_t i2,uint32_t i3,uint32_t i4)109 static inline uint32_t rsBoxFilter8888(uint32_t i1, uint32_t i2, uint32_t i3, uint32_t i4) {
110 uint32_t r = (i1 & 0xff) + (i2 & 0xff) + (i3 & 0xff) + (i4 & 0xff);
111 uint32_t g = ((i1 >> 8) & 0xff) + ((i2 >> 8) & 0xff) + ((i3 >> 8) & 0xff) + ((i4 >> 8) & 0xff);
112 uint32_t b = ((i1 >> 16) & 0xff) + ((i2 >> 16) & 0xff) + ((i3 >> 16) & 0xff) + ((i4 >> 16) & 0xff);
113 uint32_t a = ((i1 >> 24) & 0xff) + ((i2 >> 24) & 0xff) + ((i3 >> 24) & 0xff) + ((i4 >> 24) & 0xff);
114 return (r >> 2) | ((g >> 2) << 8) | ((b >> 2) << 16) | ((a >> 2) << 24);
115 }
116
117 }
118 }
119
120 #endif //ANDROID_RS_OBJECT_BASE_H
121
122
123