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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"
twiz@google.com76b82742011-06-02 20:30:02 +000012#include "SkDevice.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;
twiz@google.com76b82742011-06-02 20:30:02 +000016 bm.setConfig(SkBitmap::kARGB_8888_Config , 5, 5);
junov@google.com869d6d92011-05-17 15:47:10 +000017 bm.allocPixels();
18
19 for (int y = 0; y < bm.height(); y++) {
20 uint32_t* p = bm.getAddr32(0, y);
21 for (int x = 0; x < bm.width(); x++) {
22 p[x] = ((x + y) & 1) ? SK_ColorWHITE : SK_ColorBLACK;
23 }
24 }
25 bm.unlockPixels();
26 return bm;
27}
junov@google.com869d6d92011-05-17 15:47:10 +000028
29class TextureDomainView : public SampleView {
30 SkBitmap fBM;
31
32public:
33 TextureDomainView(){
34 fBM = make_bitmap();
35 }
36
37protected:
38 // overrides from SkEventSink
39 virtual bool onQuery(SkEvent* evt) {
40 if (SampleCode::TitleQ(*evt)) {
junov@google.com1d329782011-07-28 20:10:09 +000041 SampleCode::TitleR(evt, "Texture Domain");
junov@google.com869d6d92011-05-17 15:47:10 +000042 return true;
43 }
44 return this->INHERITED::onQuery(evt);
45 }
46
47 virtual void onDrawContent(SkCanvas* canvas) {
48 SkIRect srcRect;
49 SkRect dstRect;
50 SkPaint paint;
reed@google.com44699382013-10-31 17:28:30 +000051 paint.setFilterLevel(SkPaint::kLow_FilterLevel);
twiz@google.com76b82742011-06-02 20:30:02 +000052
53 // Test that bitmap draws from malloc-backed bitmaps respect
54 // the constrained texture domain.
55 srcRect.setXYWH(1, 1, 3, 3);
56 dstRect.setXYWH(5.0f, 5.0f, 305.0f, 305.0f);
junov@google.com869d6d92011-05-17 15:47:10 +000057 canvas->drawBitmapRect(fBM, &srcRect, dstRect, &paint);
twiz@google.com76b82742011-06-02 20:30:02 +000058
59 // Test that bitmap draws across separate devices also respect
60 // the constrainted texture domain.
61 // Note: GPU-backed bitmaps follow a different rendering path
62 // when copying from one GPU device to another.
robertphillips@google.com1f2f3382013-08-29 11:54:56 +000063 SkAutoTUnref<SkBaseDevice> secondDevice(canvas->createCompatibleDevice(
reed@google.comaf951c92011-06-16 19:10:39 +000064 SkBitmap::kARGB_8888_Config, 5, 5, true));
twiz@google.com76b82742011-06-02 20:30:02 +000065 SkCanvas secondCanvas(secondDevice.get());
66
67 srcRect.setXYWH(1, 1, 3, 3);
68 dstRect.setXYWH(1.0f, 1.0f, 3.0f, 3.0f);
69 secondCanvas.drawBitmapRect(fBM, &srcRect, dstRect, &paint);
70
71 SkBitmap deviceBitmap = secondDevice->accessBitmap(false);
72
73 srcRect.setXYWH(1, 1, 3, 3);
74 dstRect.setXYWH(405.0f, 5.0f, 305.0f, 305.0f);
75 canvas->drawBitmapRect(deviceBitmap, &srcRect, dstRect, &paint);
junov@google.comd935cfb2011-06-27 20:48:23 +000076
77 // Test that bitmap blurring using a subrect
rmistry@google.comae933ce2012-08-23 18:19:56 +000078 // renders correctly
junov@google.comd935cfb2011-06-27 20:48:23 +000079 srcRect.setXYWH(1, 1, 3, 3);
80 dstRect.setXYWH(5.0f, 405.0f, 305.0f, 305.0f);
81 SkMaskFilter* mf = SkBlurMaskFilter::Create(
junov@google.comd935cfb2011-06-27 20:48:23 +000082 SkBlurMaskFilter::kNormal_BlurStyle,
robertphillips@google.comb7061172013-09-06 14:16:12 +000083 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5)),
junov@google.com1d329782011-07-28 20:10:09 +000084 SkBlurMaskFilter::kHighQuality_BlurFlag |
85 SkBlurMaskFilter::kIgnoreTransform_BlurFlag);
junov@google.comd935cfb2011-06-27 20:48:23 +000086 paint.setMaskFilter(mf)->unref();
87 canvas->drawBitmapRect(deviceBitmap, &srcRect, dstRect, &paint);
88
epoger@google.com9ef2d832011-07-01 21:12:20 +000089 // Blur and a rotation + NULL src rect
junov@google.comd935cfb2011-06-27 20:48:23 +000090 // This should not trigger the texture domain code
91 // but it will test a code path in SkGpuDevice::drawBitmap
92 // that handles blurs with rects transformed to non-
93 // orthogonal rects. It also tests the NULL src rect handling
rmistry@google.comae933ce2012-08-23 18:19:56 +000094 mf = SkBlurMaskFilter::Create(
junov@google.com1d329782011-07-28 20:10:09 +000095 SkBlurMaskFilter::kNormal_BlurStyle,
robertphillips@google.comb7061172013-09-06 14:16:12 +000096 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5)),
junov@google.com1d329782011-07-28 20:10:09 +000097 SkBlurMaskFilter::kHighQuality_BlurFlag);
98 paint.setMaskFilter(mf)->unref();
99
junov@google.comd935cfb2011-06-27 20:48:23 +0000100 dstRect.setXYWH(-150.0f, -150.0f, 300.0f, 300.0f);
101 canvas->translate(550, 550);
102 canvas->rotate(45);
103 canvas->drawBitmapRect(fBM, NULL, dstRect, &paint);
junov@google.com869d6d92011-05-17 15:47:10 +0000104 }
105private:
106 typedef SkView INHERITED;
107};
108
109//////////////////////////////////////////////////////////////////////////////
110
111static SkView* MyFactory() { return new TextureDomainView; }
112static SkViewRegister reg(MyFactory);