blob: d72544bafb010bb0e6a694a8b2cc25028dcae69d [file] [log] [blame]
epoger@google.comec3ed6a2011-07-28 14:26:00 +00001
2/*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
reed@android.com8a1c16f2008-12-17 15:59:43 +00008#include "SampleCode.h"
9#include "SkView.h"
10#include "SkCanvas.h"
11#include "SkPaint.h"
12#include "SkPath.h"
13#include "SkRegion.h"
14#include "SkShader.h"
15#include "SkUtils.h"
16#include "SkColorPriv.h"
17#include "SkColorFilter.h"
reed@android.comf2b98d62010-12-20 18:26:13 +000018#include "SkPicture.h"
reed@android.com8a1c16f2008-12-17 15:59:43 +000019#include "SkTypeface.h"
20
21// effects
22#include "SkGradientShader.h"
reed@android.com8a1c16f2008-12-17 15:59:43 +000023#include "SkUnitMappers.h"
24#include "SkBlurDrawLooper.h"
25
26static void makebm(SkBitmap* bm, SkBitmap::Config config, int w, int h) {
27 bm->setConfig(config, w, h);
28 bm->allocPixels();
29 bm->eraseColor(0);
30
31 SkCanvas canvas(*bm);
senorblanco@chromium.org64cc5792011-05-19 19:58:58 +000032 SkPoint pts[] = { { 0, 0 }, { SkIntToScalar(w), SkIntToScalar(h) } };
reed@android.com8a1c16f2008-12-17 15:59:43 +000033 SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE };
34 SkScalar pos[] = { 0, SK_Scalar1/2, SK_Scalar1 };
35 SkPaint paint;
36
37 SkUnitMapper* um = NULL;
38
39 um = new SkCosineMapper;
40// um = new SkDiscreteMapper(12);
41
42 SkAutoUnref au(um);
43
44 paint.setDither(true);
45 paint.setShader(SkGradientShader::CreateLinear(pts, colors, pos,
46 SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode, um))->unref();
47 canvas.drawPaint(paint);
48}
49
50static void setup(SkPaint* paint, const SkBitmap& bm, bool filter,
51 SkShader::TileMode tmx, SkShader::TileMode tmy) {
52 SkShader* shader = SkShader::CreateBitmapShader(bm, tmx, tmy);
53 paint->setShader(shader)->unref();
54 paint->setFilterBitmap(filter);
55}
56
57static const SkBitmap::Config gConfigs[] = {
58 SkBitmap::kARGB_8888_Config,
59 SkBitmap::kRGB_565_Config,
60 SkBitmap::kARGB_4444_Config
61};
62static const int gWidth = 32;
63static const int gHeight = 32;
64
reed@google.comf2183392011-04-22 14:10:48 +000065class TilingView : public SampleView {
junov@google.comf3cf9422011-09-13 18:15:52 +000066 SkPicture* fTextPicture;
reed@android.com8a1c16f2008-12-17 15:59:43 +000067 SkBlurDrawLooper fLooper;
68public:
69 TilingView()
70 : fLooper(SkIntToScalar(1), SkIntToScalar(2), SkIntToScalar(2),
71 0x88000000) {
junov@google.comf3cf9422011-09-13 18:15:52 +000072 fTextPicture = new SkPicture();
senorblanco@chromium.org64cc5792011-05-19 19:58:58 +000073 for (size_t i = 0; i < SK_ARRAY_COUNT(gConfigs); i++) {
reed@android.com8a1c16f2008-12-17 15:59:43 +000074 makebm(&fTexture[i], gConfigs[i], gWidth, gHeight);
75 }
76 }
77
junov@google.comf3cf9422011-09-13 18:15:52 +000078 ~TilingView() {
79 fTextPicture->unref();
80 }
81
reed@android.com8a1c16f2008-12-17 15:59:43 +000082 SkBitmap fTexture[SK_ARRAY_COUNT(gConfigs)];
83
84protected:
85 // overrides from SkEventSink
86 virtual bool onQuery(SkEvent* evt) {
87 if (SampleCode::TitleQ(*evt)) {
88 SampleCode::TitleR(evt, "Tiling");
89 return true;
90 }
91 return this->INHERITED::onQuery(evt);
92 }
93
reed@google.comf2183392011-04-22 14:10:48 +000094 virtual void onDrawContent(SkCanvas* canvas) {
reed@android.com8a1c16f2008-12-17 15:59:43 +000095 SkRect r = { 0, 0, SkIntToScalar(gWidth*2), SkIntToScalar(gHeight*2) };
96
97 static const char* gConfigNames[] = { "8888", "565", "4444" };
98
99 static const bool gFilters[] = { false, true };
100 static const char* gFilterNames[] = { "point", "bilinear" };
101
102 static const SkShader::TileMode gModes[] = { SkShader::kClamp_TileMode, SkShader::kRepeat_TileMode, SkShader::kMirror_TileMode };
103 static const char* gModeNames[] = { "C", "R", "M" };
104
105 SkScalar y = SkIntToScalar(24);
106 SkScalar x = SkIntToScalar(10);
107
reed@android.comf2b98d62010-12-20 18:26:13 +0000108 SkCanvas* textCanvas = NULL;
junov@google.comf3cf9422011-09-13 18:15:52 +0000109 if (fTextPicture->width() == 0) {
110 textCanvas = fTextPicture->beginRecording(1000, 1000);
reed@android.comf2b98d62010-12-20 18:26:13 +0000111 }
reed@android.com8a1c16f2008-12-17 15:59:43 +0000112
reed@android.comf2b98d62010-12-20 18:26:13 +0000113 if (textCanvas) {
senorblanco@chromium.org64cc5792011-05-19 19:58:58 +0000114 for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) {
115 for (size_t ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) {
reed@android.comf2b98d62010-12-20 18:26:13 +0000116 SkPaint p;
117 SkString str;
118 p.setAntiAlias(true);
119 p.setDither(true);
120 p.setLooper(&fLooper);
121 str.printf("[%s,%s]", gModeNames[kx], gModeNames[ky]);
122
123 p.setTextAlign(SkPaint::kCenter_Align);
124 textCanvas->drawText(str.c_str(), str.size(), x + r.width()/2, y, p);
125
126 x += r.width() * 4 / 3;
127 }
reed@android.com8a1c16f2008-12-17 15:59:43 +0000128 }
129 }
130
131 y += SkIntToScalar(16);
132
senorblanco@chromium.org64cc5792011-05-19 19:58:58 +0000133 for (size_t i = 0; i < SK_ARRAY_COUNT(gConfigs); i++) {
134 for (size_t j = 0; j < SK_ARRAY_COUNT(gFilters); j++) {
reed@android.com8a1c16f2008-12-17 15:59:43 +0000135 x = SkIntToScalar(10);
senorblanco@chromium.org64cc5792011-05-19 19:58:58 +0000136 for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) {
137 for (size_t ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) {
reed@android.com8a1c16f2008-12-17 15:59:43 +0000138 SkPaint paint;
139 setup(&paint, fTexture[i], gFilters[j], gModes[kx], gModes[ky]);
140 paint.setDither(true);
141
142 canvas->save();
143 canvas->translate(x, y);
144 canvas->drawRect(r, paint);
145 canvas->restore();
146
147 x += r.width() * 4 / 3;
148 }
149 }
reed@android.comf2b98d62010-12-20 18:26:13 +0000150 if (textCanvas) {
reed@android.com8a1c16f2008-12-17 15:59:43 +0000151 SkPaint p;
152 SkString str;
153 p.setAntiAlias(true);
154 p.setLooper(&fLooper);
155 str.printf("%s, %s", gConfigNames[i], gFilterNames[j]);
reed@android.comf2b98d62010-12-20 18:26:13 +0000156 textCanvas->drawText(str.c_str(), str.size(), x, y + r.height() * 2 / 3, p);
reed@android.com8a1c16f2008-12-17 15:59:43 +0000157 }
158
159 y += r.height() * 4 / 3;
160 }
161 }
reed@android.comf2b98d62010-12-20 18:26:13 +0000162
junov@google.comf3cf9422011-09-13 18:15:52 +0000163 canvas->drawPicture(*fTextPicture);
reed@android.com8a1c16f2008-12-17 15:59:43 +0000164 }
165
reed@android.com8a1c16f2008-12-17 15:59:43 +0000166private:
reed@google.comf2183392011-04-22 14:10:48 +0000167 typedef SampleView INHERITED;
reed@android.com8a1c16f2008-12-17 15:59:43 +0000168};
169
170//////////////////////////////////////////////////////////////////////////////
171
172static SkView* MyFactory() { return new TilingView; }
173static SkViewRegister reg(MyFactory);
174