Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(70)

Side by Side Diff: src/effects/SkTileImageFilter.cpp

Issue 24157005: Moving 4 SkImageFilter derived classes from blink to skia (Closed) Base URL: https://skia.googlecode.com/svn/trunk
Patch Set: Added gm tests Created 7 years, 2 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch | Annotate | Revision Log
OLDNEW
(Empty)
1 /*
2 * Copyright 2013 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 "SkTileImageFilter.h"
9 #include "SkBitmap.h"
10 #include "SkCanvas.h"
11 #include "SkDevice.h"
12 #include "SkFlattenableBuffers.h"
13 #include "SkMatrix.h"
14 #include "SkPaint.h"
15 #include "SkShader.h"
16
17 bool SkTileImageFilter::onFilterImage(Proxy* proxy, const SkBitmap& src, const S kMatrix& ctm,
18 SkBitmap* dst, SkIPoint* offset) {
19 SkBitmap source = src;
20 SkImageFilter* input = getInput(0);
21 SkIPoint localOffset = SkIPoint::Make(0, 0);
22 if (input && !input->filterImage(proxy, src, ctm, &source, &localOffset)) {
23 return false;
24 }
25
26 int w = SkScalarTruncToInt(fDstRect.width());
27 int h = SkScalarTruncToInt(fDstRect.height());
28 if (!fSrcRect.width() || !fSrcRect.height() || !w || !h) {
29 return false;
30 }
31
32 SkIRect srcRect;
33 fSrcRect.roundOut(&srcRect);
34 SkBitmap subset;
35 if (!source.extractSubset(&subset, srcRect)) {
36 return false;
37 }
38
39 SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(w, h));
40 SkIRect bounds;
41 source.getBounds(&bounds);
42 SkCanvas canvas(device);
43 SkPaint paint;
44 paint.setXfermodeMode(SkXfermode::kSrc_Mode);
45
46 SkAutoTUnref<SkShader> shader(SkShader::CreateBitmapShader(subset,
47 SkShader::kRepeat_TileMode, SkShader::kRepeat_ TileMode));
48 paint.setShader(shader);
49 SkRect dstRect = fDstRect;
50 dstRect.offset(SkIntToScalar(localOffset.fX), SkIntToScalar(localOffset.fY)) ;
51 canvas.drawRect(dstRect, paint);
52 *dst = device->accessBitmap(false);
53 return true;
54 }
55
56 SkTileImageFilter::SkTileImageFilter(SkFlattenableReadBuffer& buffer) : INHERITE D(buffer) {
57 buffer.readRect(&fSrcRect);
58 buffer.readRect(&fDstRect);
59 }
60
61 void SkTileImageFilter::flatten(SkFlattenableWriteBuffer& buffer) const {
62 this->INHERITED::flatten(buffer);
63 buffer.writeRect(fSrcRect);
64 buffer.writeRect(fDstRect);
65 }
66
OLDNEW

Powered by Google App Engine
This is Rietveld 408576698