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epoger@google.comec3ed6a2011-07-28 14:26:00 +00001/*
2 * Copyright 2011 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 */
commit-bot@chromium.orgab131672013-09-13 12:39:55 +00007
junov@google.com869d6d92011-05-17 15:47:10 +00008#include "SampleCode.h"
robertphillips@google.comb7061172013-09-06 14:16:12 +00009#include "SkBlurMask.h"
10#include "SkBlurMaskFilter.h"
junov@google.com869d6d92011-05-17 15:47:10 +000011#include "SkCanvas.h"
reed@google.com76f10a32014-02-05 15:32:21 +000012#include "SkSurface.h"
junov@google.com869d6d92011-05-17 15:47:10 +000013
commit-bot@chromium.orgab131672013-09-13 12:39:55 +000014static SkBitmap make_bitmap() {
junov@google.com869d6d92011-05-17 15:47:10 +000015 SkBitmap bm;
commit-bot@chromium.orga8c18312014-02-17 02:55:57 +000016 bm.allocN32Pixels(5, 5);
junov@google.com869d6d92011-05-17 15:47:10 +000017
18 for (int y = 0; y < bm.height(); y++) {
19 uint32_t* p = bm.getAddr32(0, y);
20 for (int x = 0; x < bm.width(); x++) {
21 p[x] = ((x + y) & 1) ? SK_ColorWHITE : SK_ColorBLACK;
22 }
23 }
24 bm.unlockPixels();
25 return bm;
26}
junov@google.com869d6d92011-05-17 15:47:10 +000027
28class TextureDomainView : public SampleView {
29 SkBitmap fBM;
30
31public:
32 TextureDomainView(){
33 fBM = make_bitmap();
34 }
35
36protected:
37 // overrides from SkEventSink
38 virtual bool onQuery(SkEvent* evt) {
39 if (SampleCode::TitleQ(*evt)) {
junov@google.com1d329782011-07-28 20:10:09 +000040 SampleCode::TitleR(evt, "Texture Domain");
junov@google.com869d6d92011-05-17 15:47:10 +000041 return true;
42 }
43 return this->INHERITED::onQuery(evt);
44 }
45
46 virtual void onDrawContent(SkCanvas* canvas) {
reed@google.com76f10a32014-02-05 15:32:21 +000047 SkRect srcRect;
junov@google.com869d6d92011-05-17 15:47:10 +000048 SkRect dstRect;
49 SkPaint paint;
reed@google.com44699382013-10-31 17:28:30 +000050 paint.setFilterLevel(SkPaint::kLow_FilterLevel);
twiz@google.com76b82742011-06-02 20:30:02 +000051
52 // Test that bitmap draws from malloc-backed bitmaps respect
53 // the constrained texture domain.
54 srcRect.setXYWH(1, 1, 3, 3);
reed@google.com76f10a32014-02-05 15:32:21 +000055 dstRect.setXYWH(5, 5, 305, 305);
56 canvas->drawBitmapRectToRect(fBM, &srcRect, dstRect, &paint);
twiz@google.com76b82742011-06-02 20:30:02 +000057
58 // Test that bitmap draws across separate devices also respect
59 // the constrainted texture domain.
60 // Note: GPU-backed bitmaps follow a different rendering path
61 // when copying from one GPU device to another.
reed@google.com76f10a32014-02-05 15:32:21 +000062 SkImageInfo info = SkImageInfo::MakeN32(5, 5, kOpaque_SkAlphaType);
63 SkAutoTUnref<SkSurface> surface(canvas->newSurface(info));
twiz@google.com76b82742011-06-02 20:30:02 +000064
65 srcRect.setXYWH(1, 1, 3, 3);
reed@google.com76f10a32014-02-05 15:32:21 +000066 dstRect.setXYWH(1, 1, 3, 3);
67 surface->getCanvas()->drawBitmapRectToRect(fBM, &srcRect, dstRect,
68 &paint);
twiz@google.com76b82742011-06-02 20:30:02 +000069
reed@google.com76f10a32014-02-05 15:32:21 +000070 SkAutoTUnref<SkImage> image(surface->newImageSnapshot());
twiz@google.com76b82742011-06-02 20:30:02 +000071
72 srcRect.setXYWH(1, 1, 3, 3);
reed@google.com76f10a32014-02-05 15:32:21 +000073 dstRect.setXYWH(405, 5, 305, 305);
piotaixrb5fae932014-09-24 13:03:30 -070074 canvas->drawImageRect(image, &srcRect, dstRect, &paint);
junov@google.comd935cfb2011-06-27 20:48:23 +000075
76 // Test that bitmap blurring using a subrect
rmistry@google.comae933ce2012-08-23 18:19:56 +000077 // renders correctly
junov@google.comd935cfb2011-06-27 20:48:23 +000078 srcRect.setXYWH(1, 1, 3, 3);
reed@google.com76f10a32014-02-05 15:32:21 +000079 dstRect.setXYWH(5, 405, 305, 305);
junov@google.comd935cfb2011-06-27 20:48:23 +000080 SkMaskFilter* mf = SkBlurMaskFilter::Create(
commit-bot@chromium.orge3964552014-04-28 16:25:35 +000081 kNormal_SkBlurStyle,
robertphillips@google.comb7061172013-09-06 14:16:12 +000082 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5)),
junov@google.com1d329782011-07-28 20:10:09 +000083 SkBlurMaskFilter::kHighQuality_BlurFlag |
84 SkBlurMaskFilter::kIgnoreTransform_BlurFlag);
junov@google.comd935cfb2011-06-27 20:48:23 +000085 paint.setMaskFilter(mf)->unref();
piotaixrb5fae932014-09-24 13:03:30 -070086 canvas->drawImageRect(image, &srcRect, dstRect, &paint);
junov@google.comd935cfb2011-06-27 20:48:23 +000087
epoger@google.com9ef2d832011-07-01 21:12:20 +000088 // Blur and a rotation + NULL src rect
junov@google.comd935cfb2011-06-27 20:48:23 +000089 // This should not trigger the texture domain code
90 // but it will test a code path in SkGpuDevice::drawBitmap
91 // that handles blurs with rects transformed to non-
92 // orthogonal rects. It also tests the NULL src rect handling
commit-bot@chromium.orge3964552014-04-28 16:25:35 +000093 mf = SkBlurMaskFilter::Create(kNormal_SkBlurStyle,
reed@google.com76f10a32014-02-05 15:32:21 +000094 SkBlurMask::ConvertRadiusToSigma(5),
95 SkBlurMaskFilter::kHighQuality_BlurFlag);
junov@google.com1d329782011-07-28 20:10:09 +000096 paint.setMaskFilter(mf)->unref();
97
reed@google.com76f10a32014-02-05 15:32:21 +000098 dstRect.setXYWH(-150, -150, 300, 300);
junov@google.comd935cfb2011-06-27 20:48:23 +000099 canvas->translate(550, 550);
100 canvas->rotate(45);
reed@google.com76f10a32014-02-05 15:32:21 +0000101 canvas->drawBitmapRectToRect(fBM, NULL, dstRect, &paint);
junov@google.com869d6d92011-05-17 15:47:10 +0000102 }
103private:
104 typedef SkView INHERITED;
105};
106
107//////////////////////////////////////////////////////////////////////////////
108
109static SkView* MyFactory() { return new TextureDomainView; }
110static SkViewRegister reg(MyFactory);