SkSnapshot.cpp revision 0f0cfaecf2c52e5fcb033c43df06f07a81c7b0c2 
1/* libs/graphics/animator/SkSnapshot.cpp
2**
3** Copyright 2006, The Android Open Source Project
4**
5** Licensed under the Apache License, Version 2.0 (the "License");
6** you may not use this file except in compliance with the License.
7** You may obtain a copy of the License at
8**
9**     http://www.apache.org/licenses/LICENSE-2.0
10**
11** Unless required by applicable law or agreed to in writing, software
12** distributed under the License is distributed on an "AS IS" BASIS,
13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14** See the License for the specific language governing permissions and
15** limitations under the License.
16*/
17
18#include "SkTypes.h"
19
20#include "SkSnapshot.h"
21#include "SkAnimateMaker.h"
22#include "SkCanvas.h"
23#include "SkImageEncoder.h"
24
25#if SK_USE_CONDENSED_INFO == 0
26
27const SkMemberInfo SkSnapshot::fInfo[] = {
28    SK_MEMBER(filename, String),
29    SK_MEMBER(quality, Float),
30    SK_MEMBER(sequence, Boolean),
31    SK_MEMBER(type, BitmapEncoding)
32};
33
34#endif
35
36DEFINE_GET_MEMBER(SkSnapshot);
37
38SkSnapshot::SkSnapshot()
39{
40    quality     = 100 * SK_Scalar1;
41    type        = (SkImageEncoder::Type) -1;
42    sequence    = false;
43    fSeqVal     = 0;
44}
45
46#include "SkDevice.h"
47
48bool SkSnapshot::draw(SkAnimateMaker& maker) {
49    SkASSERT(type >= 0);
50    SkASSERT(filename.size() > 0);
51    SkImageEncoder* encoder = SkImageEncoder::Create((SkImageEncoder::Type) type);
52
53    SkString name(filename);
54    if (sequence) {
55        char num[4] = "000";
56        num[0] = (char) (num[0] + fSeqVal / 100);
57        num[1] = (char) (num[1] + fSeqVal / 10 % 10);
58        num[2] = (char) (num[2] + fSeqVal % 10);
59        name.append(num);
60        if (++fSeqVal > 999)
61            sequence = false;
62    }
63    if (type == SkImageEncoder::kJPEG_Type)
64        name.append(".jpg");
65    else if (type == SkImageEncoder::kPNG_Type)
66        name.append(".png");
67    encoder->encodeFile(name.c_str(),
68                        maker.fCanvas->getDevice()->accessBitmap(false),
69                        SkScalarFloor(quality));
70    return false;
71}
72
73