rsUtils.h revision 3715b00e7b10a2624c1d5c696186c7a2f4a75a91 
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#include "rs.h"
38
39namespace android {
40namespace renderscript {
41
42#if 1
43#define rsAssert(v) do {if(!(v)) ALOGE("rsAssert failed: %s, in %s at %i", #v, __FILE__, __LINE__);} while (0)
44#else
45#define rsAssert(v) while (0)
46#endif
47
48typedef float rsvF_2 __attribute__ ((vector_size (8)));
49typedef float rsvF_4 __attribute__ ((vector_size (16)));
50typedef uint8_t rsvU8_4 __attribute__ ((vector_size (4)));
51
52union float2 {
53    rsvF_2 v;
54    float f[2];
55};
56
57union float4 {
58    rsvF_4 v;
59    float f[4];
60};
61
62union uchar4 {
63    rsvU8_4 v;
64    uint8_t f[4];
65    uint32_t packed;
66};
67
68template<typename T>
69T rsMin(T in1, T in2)
70{
71    if (in1 > in2) {
72        return in2;
73    }
74    return in1;
75}
76
77template<typename T>
78T rsMax(T in1, T in2) {
79    if (in1 < in2) {
80        return in2;
81    }
82    return in1;
83}
84
85template<typename T>
86T rsFindHighBit(T val) {
87    uint32_t bit = 0;
88    while (val > 1) {
89        bit++;
90        val>>=1;
91    }
92    return bit;
93}
94
95template<typename T>
96bool rsIsPow2(T val) {
97    return (val & (val-1)) == 0;
98}
99
100template<typename T>
101T rsHigherPow2(T v) {
102    if (rsIsPow2(v)) {
103        return v;
104    }
105    return 1 << (rsFindHighBit(v) + 1);
106}
107
108template<typename T>
109T rsLowerPow2(T v) {
110    if (rsIsPow2(v)) {
111        return v;
112    }
113    return 1 << rsFindHighBit(v);
114}
115
116static inline uint16_t rs888to565(uint32_t r, uint32_t g, uint32_t b) {
117    uint16_t t = 0;
118    t |= b >> 3;
119    t |= (g >> 2) << 5;
120    t |= (r >> 3) << 11;
121    return t;
122}
123
124static inline uint16_t rsBoxFilter565(uint16_t i1, uint16_t i2, uint16_t i3, uint16_t i4) {
125    uint32_t r = ((i1 & 0x1f) + (i2 & 0x1f) + (i3 & 0x1f) + (i4 & 0x1f));
126    uint32_t g = ((i1 >> 5) & 0x3f) + ((i2 >> 5) & 0x3f) + ((i3 >> 5) & 0x3f) + ((i4 >> 5) & 0x3f);
127    uint32_t b = ((i1 >> 11) + (i2 >> 11) + (i3 >> 11) + (i4 >> 11));
128    return (r >> 2) | ((g >> 2) << 5) | ((b >> 2) << 11);
129}
130
131static inline uint32_t rsBoxFilter8888(uint32_t i1, uint32_t i2, uint32_t i3, uint32_t i4) {
132    uint32_t r = (i1 & 0xff) +         (i2 & 0xff) +         (i3 & 0xff) +         (i4 & 0xff);
133    uint32_t g = ((i1 >> 8) & 0xff) +  ((i2 >> 8) & 0xff) +  ((i3 >> 8) & 0xff) +  ((i4 >> 8) & 0xff);
134    uint32_t b = ((i1 >> 16) & 0xff) + ((i2 >> 16) & 0xff) + ((i3 >> 16) & 0xff) + ((i4 >> 16) & 0xff);
135    uint32_t a = ((i1 >> 24) & 0xff) + ((i2 >> 24) & 0xff) + ((i3 >> 24) & 0xff) + ((i4 >> 24) & 0xff);
136    return (r >> 2) | ((g >> 2) << 8) | ((b >> 2) << 16) | ((a >> 2) << 24);
137}
138
139}
140}
141
142#endif //ANDROID_RS_OBJECT_BASE_H
143
144
145