rsUtils.h revision be36bf3a76481737a7fa606a04144ceef80eb4f2 
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#include <utils/Log.h>
23#include <utils/Vector.h>
24#include <utils/KeyedVector.h>
25#include <utils/String8.h>
26#include <stdlib.h>
27#include <pthread.h>
28#include <time.h>
29
30#include <EGL/egl.h>
31#include <math.h>
32
33#include "RenderScript.h"
34
35namespace android {
36namespace renderscript {
37
38#if 1
39#define rsAssert(v) do {if(!(v)) LOGE("rsAssert failed: %s, in %s at %i", #v, __FILE__, __LINE__);} while(0)
40#else
41#define rsAssert(v) while(0)
42#endif
43
44typedef float rsvF_2 __attribute__ ((vector_size (8)));
45typedef float rsvF_4 __attribute__ ((vector_size (16)));
46typedef float rsvF_8 __attribute__ ((vector_size (32)));
47typedef float rsvF_16 __attribute__ ((vector_size (64)));
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 float8 {
61    rsvF_8 v;
62    float f[8];
63};
64
65union float16 {
66    rsvF_16 v;
67    float f[16];
68};
69
70union uchar4 {
71    rsvU8_4 v;
72    uint8_t f[4];
73    uint32_t packed;
74};
75
76template<typename T>
77T rsMin(T in1, T in2)
78{
79    if (in1 > in2) {
80        return in2;
81    }
82    return in1;
83}
84
85template<typename T>
86T rsMax(T in1, T in2)
87{
88    if (in1 < in2) {
89        return in2;
90    }
91    return in1;
92}
93
94template<typename T>
95T rsFindHighBit(T val)
96{
97    uint32_t bit = 0;
98    while(val > 1) {
99        bit++;
100        val>>=1;
101    }
102    return bit;
103}
104
105template<typename T>
106bool rsIsPow2(T val)
107{
108    return (val & (val-1)) == 0;
109}
110
111template<typename T>
112T rsHigherPow2(T v)
113{
114    if (rsIsPow2(v)) {
115        return v;
116    }
117    return 1 << (rsFindHighBit(v) + 1);
118}
119
120template<typename T>
121T rsLowerPow2(T v)
122{
123    if (rsIsPow2(v)) {
124        return v;
125    }
126    return 1 << rsFindHighBit(v);
127}
128
129
130static inline uint16_t rs888to565(uint32_t r, uint32_t g, uint32_t b)
131{
132    uint16_t t = 0;
133    t |= b >> 3;
134    t |= (g >> 2) << 5;
135    t |= (r >> 3) << 11;
136    return t;
137}
138
139static inline uint16_t rsBoxFilter565(uint16_t i1, uint16_t i2, uint16_t i3, uint16_t i4)
140{
141    uint32_t r = ((i1 & 0x1f) + (i2 & 0x1f) + (i3 & 0x1f) + (i4 & 0x1f));
142    uint32_t g = ((i1 >> 5) & 0x3f) + ((i2 >> 5) & 0x3f) + ((i3 >> 5) & 0x3f) + ((i4 >> 5) & 0x3f);
143    uint32_t b = ((i1 >> 11) + (i2 >> 11) + (i3 >> 11) + (i4 >> 11));
144    return (r >> 2) | ((g >> 2) << 5) | ((b >> 2) << 11);
145}
146
147static inline uint32_t rsBoxFilter8888(uint32_t i1, uint32_t i2, uint32_t i3, uint32_t i4)
148{
149    uint32_t r = (i1 & 0xff) +         (i2 & 0xff) +         (i3 & 0xff) +         (i4 & 0xff);
150    uint32_t g = ((i1 >> 8) & 0xff) +  ((i2 >> 8) & 0xff) +  ((i3 >> 8) & 0xff) +  ((i4 >> 8) & 0xff);
151    uint32_t b = ((i1 >> 16) & 0xff) + ((i2 >> 16) & 0xff) + ((i3 >> 16) & 0xff) + ((i4 >> 16) & 0xff);
152    uint32_t a = ((i1 >> 24) & 0xff) + ((i2 >> 24) & 0xff) + ((i3 >> 24) & 0xff) + ((i4 >> 24) & 0xff);
153    return (r >> 2) | ((g >> 2) << 8) | ((b >> 2) << 16) | ((a >> 2) << 24);
154}
155
156
157
158}
159}
160
161#endif //ANDROID_RS_OBJECT_BASE_H
162
163
164