rsUtils.h revision 77d9f4bd05b2d2a161f30c12a2248f9c97eaac42 
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#ifndef ANDROID_RS_SERIALIZE
36#include <EGL/egl.h>
37#endif
38
39#include <math.h>
40
41#include "RenderScript.h"
42
43namespace android {
44namespace renderscript {
45
46#if 1
47#define rsAssert(v) do {if(!(v)) LOGE("rsAssert failed: %s, in %s at %i", #v, __FILE__, __LINE__);} while (0)
48#else
49#define rsAssert(v) while (0)
50#endif
51
52typedef float rsvF_2 __attribute__ ((vector_size (8)));
53typedef float rsvF_4 __attribute__ ((vector_size (16)));
54typedef uint8_t rsvU8_4 __attribute__ ((vector_size (4)));
55
56union float2 {
57    rsvF_2 v;
58    float f[2];
59};
60
61union float4 {
62    rsvF_4 v;
63    float f[4];
64};
65
66union uchar4 {
67    rsvU8_4 v;
68    uint8_t f[4];
69    uint32_t packed;
70};
71
72template<typename T>
73T rsMin(T in1, T in2)
74{
75    if (in1 > in2) {
76        return in2;
77    }
78    return in1;
79}
80
81template<typename T>
82T rsMax(T in1, T in2) {
83    if (in1 < in2) {
84        return in2;
85    }
86    return in1;
87}
88
89template<typename T>
90T rsFindHighBit(T val) {
91    uint32_t bit = 0;
92    while (val > 1) {
93        bit++;
94        val>>=1;
95    }
96    return bit;
97}
98
99template<typename T>
100bool rsIsPow2(T val) {
101    return (val & (val-1)) == 0;
102}
103
104template<typename T>
105T rsHigherPow2(T v) {
106    if (rsIsPow2(v)) {
107        return v;
108    }
109    return 1 << (rsFindHighBit(v) + 1);
110}
111
112template<typename T>
113T rsLowerPow2(T v) {
114    if (rsIsPow2(v)) {
115        return v;
116    }
117    return 1 << rsFindHighBit(v);
118}
119
120static inline uint16_t rs888to565(uint32_t r, uint32_t g, uint32_t b) {
121    uint16_t t = 0;
122    t |= b >> 3;
123    t |= (g >> 2) << 5;
124    t |= (r >> 3) << 11;
125    return t;
126}
127
128static inline uint16_t rsBoxFilter565(uint16_t i1, uint16_t i2, uint16_t i3, uint16_t i4) {
129    uint32_t r = ((i1 & 0x1f) + (i2 & 0x1f) + (i3 & 0x1f) + (i4 & 0x1f));
130    uint32_t g = ((i1 >> 5) & 0x3f) + ((i2 >> 5) & 0x3f) + ((i3 >> 5) & 0x3f) + ((i4 >> 5) & 0x3f);
131    uint32_t b = ((i1 >> 11) + (i2 >> 11) + (i3 >> 11) + (i4 >> 11));
132    return (r >> 2) | ((g >> 2) << 5) | ((b >> 2) << 11);
133}
134
135static inline uint32_t rsBoxFilter8888(uint32_t i1, uint32_t i2, uint32_t i3, uint32_t i4) {
136    uint32_t r = (i1 & 0xff) +         (i2 & 0xff) +         (i3 & 0xff) +         (i4 & 0xff);
137    uint32_t g = ((i1 >> 8) & 0xff) +  ((i2 >> 8) & 0xff) +  ((i3 >> 8) & 0xff) +  ((i4 >> 8) & 0xff);
138    uint32_t b = ((i1 >> 16) & 0xff) + ((i2 >> 16) & 0xff) + ((i3 >> 16) & 0xff) + ((i4 >> 16) & 0xff);
139    uint32_t a = ((i1 >> 24) & 0xff) + ((i2 >> 24) & 0xff) + ((i3 >> 24) & 0xff) + ((i4 >> 24) & 0xff);
140    return (r >> 2) | ((g >> 2) << 8) | ((b >> 2) << 16) | ((a >> 2) << 24);
141}
142
143}
144}
145
146#endif //ANDROID_RS_OBJECT_BASE_H
147
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149