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gerrit-public.fairphone.software / platform / external / skia / bc386ce0f7a39a85f9662bf20f410d2de6efda3b / . / gm / displacement.cpp
blob: 350b8e30f3a100fc8c0dd28fc039d6568f234afe [file] [log] [blame]
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]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 "gm.h"
9#include "SkDisplacementMapEffect.h"
10#include "SkBitmapSource.h"
11
12namespace skiagm {
13
14class DisplacementMapGM : public GM {
15public:
16 DisplacementMapGM() : fInitialized(false) {
17 this->setBGColor(0xFF000000);
18 }
19
20protected:
21 virtual SkString onShortName() {
22 return SkString("displacement");
23 }
24
25 void make_bitmap() {
26 fBitmap.setConfig(SkBitmap::kARGB_8888_Config, 80, 80);
27 fBitmap.allocPixels();
robertphillips@google.com1f2f3382013-08-29 11:54:56 +0000[diff] [blame]28 SkBitmapDevice device(fBitmap);
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]29 SkCanvas canvas(&device);
30 canvas.clear(0x00000000);
31 SkPaint paint;
32 paint.setAntiAlias(true);
33 paint.setColor(0xFF884422);
34 paint.setTextSize(SkIntToScalar(96));
35 const char* str = "g";
36 canvas.drawText(str, strlen(str), SkIntToScalar(15), SkIntToScalar(55), paint);
37 }
38
39 void make_checkerboard() {
40 fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config, 80, 80);
41 fCheckerboard.allocPixels();
robertphillips@google.com1f2f3382013-08-29 11:54:56 +0000[diff] [blame]42 SkBitmapDevice device(fCheckerboard);
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]43 SkCanvas canvas(&device);
44 canvas.clear(0x00000000);
45 SkPaint darkPaint;
46 darkPaint.setColor(0xFF804020);
47 SkPaint lightPaint;
48 lightPaint.setColor(0xFF244484);
49 for (int y = 0; y < 80; y += 16) {
50 for (int x = 0; x < 80; x += 16) {
51 canvas.save();
52 canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
53 canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);
54 canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);
55 canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);
56 canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);
57 canvas.restore();
58 }
59 }
60 }
61
62 virtual SkISize onISize() {
senorblanco@chromium.org01bdf3c2013-10-15 19:02:43 +0000[diff] [blame]63 return make_isize(500, 400);
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]64 }
skia.committer@gmail.comff21c2e2013-01-16 07:05:56 +0000[diff] [blame]65
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]66 void drawClippedBitmap(SkCanvas* canvas, int x, int y, const SkPaint& paint) {
67 canvas->save();
senorblanco@chromium.orgbc386ce2013-10-15 19:30:58 +0000[diff] [blame^]68 canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
senorblanco@chromium.org01bdf3c2013-10-15 19:02:43 +0000[diff] [blame]69 canvas->clipRect(SkRect::MakeWH(SkIntToScalar(fBitmap.width()), SkIntToScalar(fBitmap.height())));
70 canvas->drawBitmap(fBitmap, 0, 0, &paint);
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]71 canvas->restore();
72 }
73
74 virtual void onDraw(SkCanvas* canvas) {
75 if (!fInitialized) {
76 make_bitmap();
77 make_checkerboard();
78 fInitialized = true;
79 }
80 canvas->clear(0x00000000);
81 SkPaint paint;
82 SkAutoTUnref<SkImageFilter> displ(SkNEW_ARGS(SkBitmapSource, (fCheckerboard)));
83 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
84 (SkDisplacementMapEffect::kR_ChannelSelectorType,
85 SkDisplacementMapEffect::kG_ChannelSelectorType, 0.0f, displ)))->unref();
86 drawClippedBitmap(canvas, 0, 0, paint);
87 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
88 (SkDisplacementMapEffect::kB_ChannelSelectorType,
sugoi@google.com4ecd42e2013-03-19 15:07:30 +0000[diff] [blame]89 SkDisplacementMapEffect::kA_ChannelSelectorType, 16.0f, displ)))->unref();
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]90 drawClippedBitmap(canvas, 100, 0, paint);
91 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
92 (SkDisplacementMapEffect::kR_ChannelSelectorType,
sugoi@google.com4ecd42e2013-03-19 15:07:30 +0000[diff] [blame]93 SkDisplacementMapEffect::kB_ChannelSelectorType, 32.0f, displ)))->unref();
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]94 drawClippedBitmap(canvas, 200, 0, paint);
95 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
96 (SkDisplacementMapEffect::kG_ChannelSelectorType,
sugoi@google.com4ecd42e2013-03-19 15:07:30 +0000[diff] [blame]97 SkDisplacementMapEffect::kA_ChannelSelectorType, 48.0f, displ)))->unref();
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]98 drawClippedBitmap(canvas, 300, 0, paint);
99 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
100 (SkDisplacementMapEffect::kR_ChannelSelectorType,
sugoi@google.com4ecd42e2013-03-19 15:07:30 +0000[diff] [blame]101 SkDisplacementMapEffect::kA_ChannelSelectorType, 64.0f, displ)))->unref();
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]102 drawClippedBitmap(canvas, 400, 0, paint);
103
104 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
105 (SkDisplacementMapEffect::kR_ChannelSelectorType,
sugoi@google.com4ecd42e2013-03-19 15:07:30 +0000[diff] [blame]106 SkDisplacementMapEffect::kG_ChannelSelectorType, 40.0f, displ)))->unref();
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]107 drawClippedBitmap(canvas, 0, 100, paint);
108 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
109 (SkDisplacementMapEffect::kB_ChannelSelectorType,
sugoi@google.com4ecd42e2013-03-19 15:07:30 +0000[diff] [blame]110 SkDisplacementMapEffect::kA_ChannelSelectorType, 40.0f, displ)))->unref();
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]111 drawClippedBitmap(canvas, 100, 100, paint);
112 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
113 (SkDisplacementMapEffect::kR_ChannelSelectorType,
sugoi@google.com4ecd42e2013-03-19 15:07:30 +0000[diff] [blame]114 SkDisplacementMapEffect::kB_ChannelSelectorType, 40.0f, displ)))->unref();
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]115 drawClippedBitmap(canvas, 200, 100, paint);
116 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
117 (SkDisplacementMapEffect::kG_ChannelSelectorType,
sugoi@google.com4ecd42e2013-03-19 15:07:30 +0000[diff] [blame]118 SkDisplacementMapEffect::kA_ChannelSelectorType, 40.0f, displ)))->unref();
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]119 drawClippedBitmap(canvas, 300, 100, paint);
120 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
121 (SkDisplacementMapEffect::kR_ChannelSelectorType,
sugoi@google.com4ecd42e2013-03-19 15:07:30 +0000[diff] [blame]122 SkDisplacementMapEffect::kA_ChannelSelectorType, 40.0f, displ)))->unref();
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]123 drawClippedBitmap(canvas, 400, 100, paint);
senorblanco@chromium.org01bdf3c2013-10-15 19:02:43 +0000[diff] [blame]124
125 SkImageFilter::CropRect cropRect(SkRect::MakeXYWH(30, 30, 40, 40));
126 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
127 (SkDisplacementMapEffect::kR_ChannelSelectorType,
128 SkDisplacementMapEffect::kG_ChannelSelectorType,
129 0.0f, displ, NULL, &cropRect)))->unref();
130 drawClippedBitmap(canvas, 0, 200, paint);
131 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
132 (SkDisplacementMapEffect::kB_ChannelSelectorType,
133 SkDisplacementMapEffect::kA_ChannelSelectorType,
134 16.0f, displ, NULL, &cropRect)))->unref();
135 drawClippedBitmap(canvas, 100, 200, paint);
136 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
137 (SkDisplacementMapEffect::kR_ChannelSelectorType,
138 SkDisplacementMapEffect::kB_ChannelSelectorType,
139 32.0f, displ, NULL, &cropRect)))->unref();
140 drawClippedBitmap(canvas, 200, 200, paint);
141 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
142 (SkDisplacementMapEffect::kG_ChannelSelectorType,
143 SkDisplacementMapEffect::kA_ChannelSelectorType,
144 48.0f, displ, NULL, &cropRect)))->unref();
145 drawClippedBitmap(canvas, 300, 200, paint);
146 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
147 (SkDisplacementMapEffect::kR_ChannelSelectorType,
148 SkDisplacementMapEffect::kA_ChannelSelectorType,
149 64.0f, displ, NULL, &cropRect)))->unref();
150 drawClippedBitmap(canvas, 400, 200, paint);
151
152 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
153 (SkDisplacementMapEffect::kR_ChannelSelectorType,
154 SkDisplacementMapEffect::kG_ChannelSelectorType,
155 40.0f, displ, NULL, &cropRect)))->unref();
156 drawClippedBitmap(canvas, 0, 300, paint);
157 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
158 (SkDisplacementMapEffect::kB_ChannelSelectorType,
159 SkDisplacementMapEffect::kA_ChannelSelectorType,
160 40.0f, displ, NULL, &cropRect)))->unref();
161 drawClippedBitmap(canvas, 100, 300, paint);
162 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
163 (SkDisplacementMapEffect::kR_ChannelSelectorType,
164 SkDisplacementMapEffect::kB_ChannelSelectorType,
165 40.0f, displ, NULL, &cropRect)))->unref();
166 drawClippedBitmap(canvas, 200, 300, paint);
167 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
168 (SkDisplacementMapEffect::kG_ChannelSelectorType,
169 SkDisplacementMapEffect::kA_ChannelSelectorType,
170 40.0f, displ, NULL, &cropRect)))->unref();
171 drawClippedBitmap(canvas, 300, 300, paint);
172 paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
173 (SkDisplacementMapEffect::kR_ChannelSelectorType,
174 SkDisplacementMapEffect::kA_ChannelSelectorType,
175 40.0f, displ, NULL, &cropRect)))->unref();
176 drawClippedBitmap(canvas, 400, 300, paint);
sugoi@google.com781cc762013-01-15 15:40:19 +0000[diff] [blame]177 }
178
179private:
180 typedef GM INHERITED;
181 SkBitmap fBitmap, fCheckerboard;
182 bool fInitialized;
183};
184
185//////////////////////////////////////////////////////////////////////////////
186
187static GM* MyFactory(void*) { return new DisplacementMapGM; }
188static GMRegistry reg(MyFactory);
189
190}