rsUtils.h revision e23d239828a229eb7d4d33c9630070f0a87833e1 
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
37namespace android {
38namespace 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
46typedef float rsvF_2 __attribute__ ((vector_size (8)));
47typedef float rsvF_4 __attribute__ ((vector_size (16)));
48typedef uint8_t rsvU8_4 __attribute__ ((vector_size (4)));
49
50union float2 {
51    rsvF_2 v;
52    float f[2];
53};
54
55union float4 {
56    rsvF_4 v;
57    float f[4];
58};
59
60union uchar4 {
61    rsvU8_4 v;
62    uint8_t f[4];
63    uint32_t packed;
64};
65
66template<typename T>
67T rsMin(T in1, T in2)
68{
69    if (in1 > in2) {
70        return in2;
71    }
72    return in1;
73}
74
75template<typename T>
76T rsMax(T in1, T in2) {
77    if (in1 < in2) {
78        return in2;
79    }
80    return in1;
81}
82
83template<typename T>
84T rsFindHighBit(T val) {
85    uint32_t bit = 0;
86    while (val > 1) {
87        bit++;
88        val>>=1;
89    }
90    return bit;
91}
92
93template<typename T>
94bool rsIsPow2(T val) {
95    return (val & (val-1)) == 0;
96}
97
98template<typename T>
99T rsHigherPow2(T v) {
100    if (rsIsPow2(v)) {
101        return v;
102    }
103    return 1 << (rsFindHighBit(v) + 1);
104}
105
106template<typename T>
107T rsLowerPow2(T v) {
108    if (rsIsPow2(v)) {
109        return v;
110    }
111    return 1 << rsFindHighBit(v);
112}
113
114static inline uint16_t rs888to565(uint32_t r, uint32_t g, uint32_t b) {
115    uint16_t t = 0;
116    t |= b >> 3;
117    t |= (g >> 2) << 5;
118    t |= (r >> 3) << 11;
119    return t;
120}
121
122static inline uint16_t rsBoxFilter565(uint16_t i1, uint16_t i2, uint16_t i3, uint16_t i4) {
123    uint32_t r = ((i1 & 0x1f) + (i2 & 0x1f) + (i3 & 0x1f) + (i4 & 0x1f));
124    uint32_t g = ((i1 >> 5) & 0x3f) + ((i2 >> 5) & 0x3f) + ((i3 >> 5) & 0x3f) + ((i4 >> 5) & 0x3f);
125    uint32_t b = ((i1 >> 11) + (i2 >> 11) + (i3 >> 11) + (i4 >> 11));
126    return (r >> 2) | ((g >> 2) << 5) | ((b >> 2) << 11);
127}
128
129static inline uint32_t rsBoxFilter8888(uint32_t i1, uint32_t i2, uint32_t i3, uint32_t i4) {
130    uint32_t r = (i1 & 0xff) +         (i2 & 0xff) +         (i3 & 0xff) +         (i4 & 0xff);
131    uint32_t g = ((i1 >> 8) & 0xff) +  ((i2 >> 8) & 0xff) +  ((i3 >> 8) & 0xff) +  ((i4 >> 8) & 0xff);
132    uint32_t b = ((i1 >> 16) & 0xff) + ((i2 >> 16) & 0xff) + ((i3 >> 16) & 0xff) + ((i4 >> 16) & 0xff);
133    uint32_t a = ((i1 >> 24) & 0xff) + ((i2 >> 24) & 0xff) + ((i3 >> 24) & 0xff) + ((i4 >> 24) & 0xff);
134    return (r >> 2) | ((g >> 2) << 8) | ((b >> 2) << 16) | ((a >> 2) << 24);
135}
136
137}
138}
139
140#endif //ANDROID_RS_OBJECT_BASE_H
141
142
143