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tomhudson@google.comef279d32011-12-21 14:27:14 +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 */
7
8#include "gm.h"
9#include "SkCanvas.h"
10#include "SkPath.h"
11
tomhudson@google.comef279d32011-12-21 14:27:14 +000012/** Draw a 2px border around the target, then red behind the target;
13 set the clip to match the target, then draw >> the target in blue.
14*/
15
commit-bot@chromium.orgc3bd8af2014-02-13 17:14:46 +000016static void draw(SkCanvas* canvas, SkRect& target, int x, int y) {
tomhudson@google.comef279d32011-12-21 14:27:14 +000017 SkPaint borderPaint;
18 borderPaint.setColor(SkColorSetRGB(0x0, 0xDD, 0x0));
19 borderPaint.setAntiAlias(true);
20 SkPaint backgroundPaint;
21 backgroundPaint.setColor(SkColorSetRGB(0xDD, 0x0, 0x0));
22 backgroundPaint.setAntiAlias(true);
23 SkPaint foregroundPaint;
24 foregroundPaint.setColor(SkColorSetRGB(0x0, 0x0, 0xDD));
25 foregroundPaint.setAntiAlias(true);
26
27 canvas->save();
tomhudson@google.comabfa8d12011-12-28 19:40:48 +000028 canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
29 target.inset(SkIntToScalar(-2), SkIntToScalar(-2));
tomhudson@google.comef279d32011-12-21 14:27:14 +000030 canvas->drawRect(target, borderPaint);
tomhudson@google.comabfa8d12011-12-28 19:40:48 +000031 target.inset(SkIntToScalar(2), SkIntToScalar(2));
tomhudson@google.comef279d32011-12-21 14:27:14 +000032 canvas->drawRect(target, backgroundPaint);
33 canvas->clipRect(target, SkRegion::kIntersect_Op, true);
tomhudson@google.comabfa8d12011-12-28 19:40:48 +000034 target.inset(SkIntToScalar(-4), SkIntToScalar(-4));
tomhudson@google.comef279d32011-12-21 14:27:14 +000035 canvas->drawRect(target, foregroundPaint);
36 canvas->restore();
37}
38
commit-bot@chromium.orgc3bd8af2014-02-13 17:14:46 +000039static void draw_square(SkCanvas* canvas, int x, int y) {
tomhudson@google.comef279d32011-12-21 14:27:14 +000040 SkRect target (SkRect::MakeWH(10 * SK_Scalar1, 10 * SK_Scalar1));
41 draw(canvas, target, x, y);
42}
43
commit-bot@chromium.orgc3bd8af2014-02-13 17:14:46 +000044static void draw_column(SkCanvas* canvas, int x, int y) {
tomhudson@google.comef279d32011-12-21 14:27:14 +000045 SkRect target (SkRect::MakeWH(1 * SK_Scalar1, 10 * SK_Scalar1));
46 draw(canvas, target, x, y);
47}
48
commit-bot@chromium.orgc3bd8af2014-02-13 17:14:46 +000049static void draw_bar(SkCanvas* canvas, int x, int y) {
tomhudson@google.comef279d32011-12-21 14:27:14 +000050 SkRect target (SkRect::MakeWH(10 * SK_Scalar1, 1 * SK_Scalar1));
51 draw(canvas, target, x, y);
52}
53
commit-bot@chromium.orgc3bd8af2014-02-13 17:14:46 +000054static void draw_rect_tests(SkCanvas* canvas) {
tomhudson@google.comef279d32011-12-21 14:27:14 +000055 draw_square(canvas, 10, 10);
56 draw_column(canvas, 30, 10);
57 draw_bar(canvas, 10, 30);
58}
59
60/**
61 Test a set of clipping problems discovered while writing blitAntiRect,
62 and test all the code paths through the clipping blitters.
63 Each region should show as a blue center surrounded by a 2px green
64 border, with no red.
65*/
66
reed@google.comff26b7e2013-05-23 17:04:19 +000067class AAClipGM : public skiagm::GM {
tomhudson@google.comef279d32011-12-21 14:27:14 +000068public:
69 AAClipGM() {
reed@google.com71121732012-09-18 15:14:33 +000070
tomhudson@google.comef279d32011-12-21 14:27:14 +000071 }
72
73protected:
mtklein36352bf2015-03-25 18:17:31 -070074 SkString onShortName() override {
tomhudson@google.comef279d32011-12-21 14:27:14 +000075 return SkString("aaclip");
76 }
77
mtklein36352bf2015-03-25 18:17:31 -070078 SkISize onISize() override {
commit-bot@chromium.org5d0b1502014-04-14 15:02:19 +000079 return SkISize::Make(240, 120);
tomhudson@google.comef279d32011-12-21 14:27:14 +000080 }
81
mtklein36352bf2015-03-25 18:17:31 -070082 void onDraw(SkCanvas* canvas) override {
tomhudson@google.comef279d32011-12-21 14:27:14 +000083 // Initial pixel-boundary-aligned draw
84 draw_rect_tests(canvas);
85
86 // Repeat 4x with .2, .4, .6, .8 px offsets
87 canvas->translate(SK_Scalar1 / 5, SK_Scalar1 / 5);
tomhudson@google.comabfa8d12011-12-28 19:40:48 +000088 canvas->translate(SkIntToScalar(50), 0);
tomhudson@google.comef279d32011-12-21 14:27:14 +000089 draw_rect_tests(canvas);
90
91 canvas->translate(SK_Scalar1 / 5, SK_Scalar1 / 5);
tomhudson@google.comabfa8d12011-12-28 19:40:48 +000092 canvas->translate(SkIntToScalar(50), 0);
tomhudson@google.comef279d32011-12-21 14:27:14 +000093 draw_rect_tests(canvas);
94
95 canvas->translate(SK_Scalar1 / 5, SK_Scalar1 / 5);
tomhudson@google.comabfa8d12011-12-28 19:40:48 +000096 canvas->translate(SkIntToScalar(50), 0);
tomhudson@google.comef279d32011-12-21 14:27:14 +000097 draw_rect_tests(canvas);
98
99 canvas->translate(SK_Scalar1 / 5, SK_Scalar1 / 5);
tomhudson@google.comabfa8d12011-12-28 19:40:48 +0000100 canvas->translate(SkIntToScalar(50), 0);
tomhudson@google.comef279d32011-12-21 14:27:14 +0000101 draw_rect_tests(canvas);
102 }
103
tomhudson@google.comef279d32011-12-21 14:27:14 +0000104private:
reed@google.comff26b7e2013-05-23 17:04:19 +0000105 typedef skiagm::GM INHERITED;
tomhudson@google.comef279d32011-12-21 14:27:14 +0000106};
107
halcanary385fe4d2015-08-26 13:07:48 -0700108DEF_GM(return new AAClipGM;)
commit-bot@chromium.org60b5dce2014-04-22 20:24:33 +0000109
110/////////////////////////////////////////////////////////////////////////
111
112#ifdef SK_BUILD_FOR_MAC
113
114static SkCanvas* make_canvas(const SkBitmap& bm) {
115 const SkImageInfo& info = bm.info();
116 if (info.bytesPerPixel() == 4) {
117 return SkCanvas::NewRasterDirectN32(info.width(), info.height(),
118 (SkPMColor*)bm.getPixels(),
119 bm.rowBytes());
120 } else {
halcanary385fe4d2015-08-26 13:07:48 -0700121 return new SkCanvas(bm);
commit-bot@chromium.org60b5dce2014-04-22 20:24:33 +0000122 }
123}
124
125#include "SkCGUtils.h"
126static void test_image(SkCanvas* canvas, const SkImageInfo& info) {
127 SkBitmap bm;
128 bm.allocPixels(info);
129
130 SkAutoTUnref<SkCanvas> newc(make_canvas(bm));
131 if (info.isOpaque()) {
132 bm.eraseColor(SK_ColorGREEN);
133 } else {
134 bm.eraseColor(0);
135 }
skia.committer@gmail.comede0c5c2014-04-23 03:04:11 +0000136
commit-bot@chromium.org60b5dce2014-04-22 20:24:33 +0000137 SkPaint paint;
138 paint.setAntiAlias(true);
139 paint.setColor(SK_ColorBLUE);
140 newc->drawCircle(50, 50, 49, paint);
141 canvas->drawBitmap(bm, 10, 10);
skia.committer@gmail.comede0c5c2014-04-23 03:04:11 +0000142
halcanary96fcdcc2015-08-27 07:41:13 -0700143 CGImageRef image = SkCreateCGImageRefWithColorspace(bm, nullptr);
skia.committer@gmail.comede0c5c2014-04-23 03:04:11 +0000144
commit-bot@chromium.org60b5dce2014-04-22 20:24:33 +0000145 SkBitmap bm2;
146 SkCreateBitmapFromCGImage(&bm2, image);
147 CGImageRelease(image);
skia.committer@gmail.comede0c5c2014-04-23 03:04:11 +0000148
commit-bot@chromium.org60b5dce2014-04-22 20:24:33 +0000149 canvas->drawBitmap(bm2, 10, 120);
150}
151
152class CGImageGM : public skiagm::GM {
153public:
154 CGImageGM() {}
skia.committer@gmail.comede0c5c2014-04-23 03:04:11 +0000155
commit-bot@chromium.org60b5dce2014-04-22 20:24:33 +0000156protected:
mtklein36352bf2015-03-25 18:17:31 -0700157 SkString onShortName() override {
commit-bot@chromium.org60b5dce2014-04-22 20:24:33 +0000158 return SkString("cgimage");
159 }
skia.committer@gmail.comede0c5c2014-04-23 03:04:11 +0000160
mtklein36352bf2015-03-25 18:17:31 -0700161 SkISize onISize() override {
commit-bot@chromium.org60b5dce2014-04-22 20:24:33 +0000162 return SkISize::Make(800, 250);
163 }
skia.committer@gmail.comede0c5c2014-04-23 03:04:11 +0000164
mtklein36352bf2015-03-25 18:17:31 -0700165 void onDraw(SkCanvas* canvas) override {
commit-bot@chromium.org60b5dce2014-04-22 20:24:33 +0000166 const struct {
167 SkColorType fCT;
168 SkAlphaType fAT;
169 } rec[] = {
170 { kRGB_565_SkColorType, kOpaque_SkAlphaType },
171
172 { kRGBA_8888_SkColorType, kPremul_SkAlphaType },
173 { kRGBA_8888_SkColorType, kUnpremul_SkAlphaType },
174 { kRGBA_8888_SkColorType, kOpaque_SkAlphaType },
175
176 { kBGRA_8888_SkColorType, kPremul_SkAlphaType },
177 { kBGRA_8888_SkColorType, kUnpremul_SkAlphaType },
178 { kBGRA_8888_SkColorType, kOpaque_SkAlphaType },
179 };
skia.committer@gmail.comede0c5c2014-04-23 03:04:11 +0000180
commit-bot@chromium.org60b5dce2014-04-22 20:24:33 +0000181 for (size_t i = 0; i < SK_ARRAY_COUNT(rec); ++i) {
182 SkImageInfo info = SkImageInfo::Make(100, 100, rec[i].fCT, rec[i].fAT);
183 test_image(canvas, info);
184 canvas->translate(info.width() + 10, 0);
185 }
186 }
skia.committer@gmail.comede0c5c2014-04-23 03:04:11 +0000187
commit-bot@chromium.org60b5dce2014-04-22 20:24:33 +0000188private:
189 typedef skiagm::GM INHERITED;
190};
191
bsalomon@google.com2a9e3ad2014-04-23 18:05:36 +0000192#if 0 // Disabled pending fix from reed@
halcanary385fe4d2015-08-26 13:07:48 -0700193DEF_GM( return new CGImageGM; )
bsalomon@google.com2a9e3ad2014-04-23 18:05:36 +0000194#endif
commit-bot@chromium.org60b5dce2014-04-22 20:24:33 +0000195#endif
reed8f76cb92015-04-22 17:38:23 -0700196
197///////////////////////////////////////////////////////////////////////////////////////////////////
198
halcanary6950de62015-11-07 05:29:00 -0800199// https://bug.skia.org/3716
reed8f76cb92015-04-22 17:38:23 -0700200class ClipCubicGM : public skiagm::GM {
201 const SkScalar W = 100;
202 const SkScalar H = 240;
203
204 SkPath fVPath, fHPath;
205public:
206 ClipCubicGM() {
207 fVPath.moveTo(W, 0);
208 fVPath.cubicTo(W, H-10, 0, 10, 0, H);
209
210 SkMatrix pivot;
211 pivot.setRotate(90, W/2, H/2);
212 fVPath.transform(pivot, &fHPath);
213 }
214
215protected:
216 SkString onShortName() override {
217 return SkString("clipcubic");
218 }
219
220 SkISize onISize() override {
221 return SkISize::Make(400, 410);
222 }
223
224 void doDraw(SkCanvas* canvas, const SkPath& path) {
225 SkPaint paint;
226 paint.setAntiAlias(true);
227
caryclark12596012015-07-29 05:27:47 -0700228 paint.setColor(sk_tool_utils::color_to_565(0xFFCCCCCC));
reed8f76cb92015-04-22 17:38:23 -0700229 canvas->drawPath(path, paint);
230
231 paint.setColor(SK_ColorRED);
232 paint.setStyle(SkPaint::kStroke_Style);
233 canvas->drawPath(path, paint);
234 }
235
236 void drawAndClip(SkCanvas* canvas, const SkPath& path, SkScalar dx, SkScalar dy) {
237 SkAutoCanvasRestore acr(canvas, true);
238
239 SkRect r = SkRect::MakeXYWH(0, H/4, W, H/2);
240 SkPaint paint;
caryclark12596012015-07-29 05:27:47 -0700241 paint.setColor(sk_tool_utils::color_to_565(0xFF8888FF));
reed8f76cb92015-04-22 17:38:23 -0700242
243 canvas->drawRect(r, paint);
244 this->doDraw(canvas, path);
245
246 canvas->translate(dx, dy);
247
248 canvas->drawRect(r, paint);
249 canvas->clipRect(r);
250 this->doDraw(canvas, path);
251 }
252
253 void onDraw(SkCanvas* canvas) override {
254 canvas->translate(80, 10);
255 this->drawAndClip(canvas, fVPath, 200, 0);
256 canvas->translate(0, 200);
257 this->drawAndClip(canvas, fHPath, 200, 0);
258 }
259
260private:
261 typedef skiagm::GM INHERITED;
262};
halcanary385fe4d2015-08-26 13:07:48 -0700263DEF_GM(return new ClipCubicGM;)