skia-sys 0.20130412.3

2D graphic library for drawing Text, Geometries, and Images. FFI bindings only.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179


/*
 * Copyright 2006 The Android Open Source Project
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */


#include "SkTypedArray.h"

SkTypedArray::SkTypedArray() : fType(SkType_Unknown) {
}

SkTypedArray::SkTypedArray(SkDisplayTypes type) : fType(type) {
}

bool SkTypedArray::getIndex(int index, SkOperand* operand) {
    if (index >= count()) {
        SkASSERT(0);
        return false;
    }
    *operand = begin()[index];
    return true;
}


#if SK_SMALLER_ARRAY_TEMPLATE_EXPERIMENT == 1
SkDS32Array::SkDS32Array()
{
    fReserve = fCount = 0;
    fArray = NULL;
#ifdef SK_DEBUG
    fData = NULL;
#endif
}

SkDS32Array::SkDS32Array(const SkDS32Array& src)
{
    fReserve = fCount = 0;
    fArray = NULL;
#ifdef SK_DEBUG
    fData = NULL;
#endif
    SkDS32Array tmp(src.fArray, src.fCount);
    this->swap(tmp);
}

SkDS32Array::SkDS32Array(const int32_t src[], U16CPU count)
{
    SkASSERT(src || count == 0);

    fReserve = fCount = 0;
    fArray = NULL;
#ifdef SK_DEBUG
    fData = NULL;
#endif
    if (count)
    {
        fArray = (int32_t*)sk_malloc_throw(count * sizeof(int32_t));
#ifdef SK_DEBUG
        fData = (int32_t (*)[kDebugArraySize]) fArray;
#endif
        memcpy(fArray, src, sizeof(int32_t) * count);
        fReserve = fCount = SkToU16(count);
    }
}

SkDS32Array& SkDS32Array::operator=(const SkDS32Array& src)
{
    if (this != &src)
    {
        if (src.fCount > fReserve)
        {
            SkDS32Array tmp(src.fArray, src.fCount);
            this->swap(tmp);
        }
        else
        {
            memcpy(fArray, src.fArray, sizeof(int32_t) * src.fCount);
            fCount = src.fCount;
        }
    }
    return *this;
}

int operator==(const SkDS32Array& a, const SkDS32Array& b)
{
    return a.fCount == b.fCount &&
            (a.fCount == 0 || !memcmp(a.fArray, b.fArray, a.fCount * sizeof(int32_t)));
}

void SkDS32Array::swap(SkDS32Array& other)
{
    SkTSwap(fArray, other.fArray);
#ifdef SK_DEBUG
    SkTSwap(fData, other.fData);
#endif
    SkTSwap(fReserve, other.fReserve);
    SkTSwap(fCount, other.fCount);
}

int32_t* SkDS32Array::append(U16CPU count, const int32_t* src)
{
    unsigned oldCount = fCount;
    if (count)
    {
        SkASSERT(src == NULL || fArray == NULL ||
                src + count <= fArray || fArray + count <= src);

        this->growBy(count);
        if (src)
            memcpy(fArray + oldCount, src, sizeof(int32_t) * count);
    }
    return fArray + oldCount;
}

int SkDS32Array::find(const int32_t& elem) const
{
    const int32_t* iter = fArray;
    const int32_t* stop = fArray + fCount;

    for (; iter < stop; iter++)
    {
        if (*iter == elem)
            return (int) (iter - fArray);
    }
    return -1;
}

void SkDS32Array::growBy(U16CPU extra)
{
    SkASSERT(extra);
    SkASSERT(fCount + extra <= 0xFFFF);

    if (fCount + extra > fReserve)
    {
        size_t size = fCount + extra + 4;
        size += size >> 2;
        int32_t* array = (int32_t*)sk_malloc_throw(size * sizeof(int32_t));
        memcpy(array, fArray, fCount * sizeof(int32_t));

        sk_free(fArray);
        fArray = array;
#ifdef SK_DEBUG
        fData = (int32_t (*)[kDebugArraySize]) fArray;
#endif
        fReserve = SkToU16((U16CPU)size);
    }
    fCount = SkToU16(fCount + extra);
}

int32_t* SkDS32Array::insert(U16CPU index, U16CPU count, const int32_t* src)
{
    SkASSERT(count);
    int oldCount = fCount;
    this->growBy(count);
    int32_t* dst = fArray + index;
    memmove(dst + count, dst, sizeof(int32_t) * (oldCount - index));
    if (src)
        memcpy(dst, src, sizeof(int32_t) * count);
    return dst;
}


    int SkDS32Array::rfind(const int32_t& elem) const
    {
        const int32_t* iter = fArray + fCount;
        const int32_t* stop = fArray;

        while (iter > stop)
        {
            if (*--iter == elem)
                return (int) (iter - stop);
        }
        return -1;
    }

#endif