a07fe67ae458dabd45e61305753dcf4cf9862aca
[platform/framework/web/crosswalk.git] / src / third_party / skia / src / gpu / GrSurface.cpp
1 /*
2  * Copyright 2012 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7
8 #include "GrSurface.h"
9
10 #include "SkBitmap.h"
11 #include "SkGr.h"
12 #include "SkImageEncoder.h"
13 #include <stdio.h>
14
15 SkImageInfo GrSurface::info() const {
16     SkImageInfo info;
17     if (!GrPixelConfig2ColorType(this->config(), &info.fColorType)) {
18         sk_throw();
19     }
20     info.fWidth = this->width();
21     info.fHeight = this->height();
22     info.fAlphaType = kPremul_SkAlphaType;
23     return info;
24 }
25
26 bool GrSurface::savePixels(const char* filename) {
27     SkBitmap bm;
28     if (!bm.allocPixels(SkImageInfo::MakeN32Premul(this->width(),
29                                                    this->height()))) {
30         return false;
31     }
32
33     bool result = readPixels(0, 0, this->width(), this->height(), kSkia8888_GrPixelConfig,
34                              bm.getPixels());
35     if (!result) {
36         SkDebugf("------ failed to read pixels for %s\n", filename);
37         return false;
38     }
39
40     // remove any previous version of this file
41     remove(filename);
42
43     if (!SkImageEncoder::EncodeFile(filename, bm, SkImageEncoder::kPNG_Type, 100)) {
44         SkDebugf("------ failed to encode %s\n", filename);
45         remove(filename);   // remove any partial file
46         return false;
47     }
48
49     return true;
50 }