1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "base/compiler_specific.h"
6 #include "skia/ext/analysis_canvas.h"
7 #include "skia/ext/refptr.h"
8 #include "testing/gtest/include/gtest/gtest.h"
9 #include "third_party/skia/include/core/SkPicture.h"
10 #include "third_party/skia/include/core/SkPictureRecorder.h"
11 #include "third_party/skia/include/core/SkShader.h"
12 #include "third_party/skia/include/effects/SkOffsetImageFilter.h"
16 void SolidColorFill(skia::AnalysisCanvas& canvas) {
17 canvas.clear(SkColorSetARGB(255, 255, 255, 255));
20 void TransparentFill(skia::AnalysisCanvas& canvas) {
21 canvas.clear(SkColorSetARGB(0, 0, 0, 0));
27 TEST(AnalysisCanvasTest, EmptyCanvas) {
28 skia::AnalysisCanvas canvas(255, 255);
31 EXPECT_TRUE(canvas.GetColorIfSolid(&color));
32 EXPECT_EQ(color, SkColorSetARGB(0, 0, 0, 0));
35 TEST(AnalysisCanvasTest, ClearCanvas) {
36 skia::AnalysisCanvas canvas(255, 255);
39 SkColor color = SkColorSetARGB(0, 12, 34, 56);
43 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
44 EXPECT_EQ(static_cast<SkColor>(SK_ColorTRANSPARENT), outputColor);
47 color = SkColorSetARGB(255, 65, 43, 21);
50 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
51 EXPECT_NE(static_cast<SkColor>(SK_ColorTRANSPARENT), outputColor);
52 EXPECT_EQ(outputColor, color);
55 color = SkColorSetARGB(128, 11, 22, 33);
58 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
60 // Test helper methods
61 SolidColorFill(canvas);
62 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
63 EXPECT_NE(static_cast<SkColor>(SK_ColorTRANSPARENT), outputColor);
65 TransparentFill(canvas);
66 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
67 EXPECT_EQ(static_cast<SkColor>(SK_ColorTRANSPARENT), outputColor);
70 TEST(AnalysisCanvasTest, ComplexActions) {
71 skia::AnalysisCanvas canvas(255, 255);
74 SkColor color = SkColorSetARGB(255, 11, 22, 33);
76 paint.setColor(color);
78 canvas.drawPaint(paint);
81 //TODO(vmpstr): This should return true. (crbug.com/180597)
82 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
87 SkPoint::Make(255, 0),
88 SkPoint::Make(255, 255),
92 SolidColorFill(canvas);
93 canvas.drawPoints(SkCanvas::kLines_PointMode, 4, points, paint);
95 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
98 SolidColorFill(canvas);
99 canvas.drawOval(SkRect::MakeWH(255, 255), paint);
101 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
104 SolidColorFill(canvas);
105 SkBitmap secondBitmap;
106 secondBitmap.allocN32Pixels(255, 255);
107 canvas.drawBitmap(secondBitmap, 0, 0);
109 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
112 TEST(AnalysisCanvasTest, SimpleDrawRect) {
113 skia::AnalysisCanvas canvas(255, 255);
115 SkColor color = SkColorSetARGB(255, 11, 22, 33);
117 paint.setColor(color);
118 canvas.clipRect(SkRect::MakeWH(255, 255));
119 canvas.drawRect(SkRect::MakeWH(255, 255), paint);
122 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
123 EXPECT_NE(static_cast<SkColor>(SK_ColorTRANSPARENT), outputColor);
124 EXPECT_EQ(color, outputColor);
126 color = SkColorSetARGB(255, 22, 33, 44);
127 paint.setColor(color);
128 canvas.translate(-128, -128);
129 canvas.drawRect(SkRect::MakeWH(382, 382), paint);
131 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
133 color = SkColorSetARGB(255, 33, 44, 55);
134 paint.setColor(color);
135 canvas.drawRect(SkRect::MakeWH(383, 383), paint);
137 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
138 EXPECT_NE(static_cast<SkColor>(SK_ColorTRANSPARENT), outputColor);
139 EXPECT_EQ(color, outputColor);
141 color = SkColorSetARGB(0, 0, 0, 0);
142 paint.setColor(color);
143 canvas.drawRect(SkRect::MakeWH(383, 383), paint);
145 // This test relies on canvas treating a paint with 0-color as a no-op
146 // thus not changing its "is_solid" status.
147 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
148 EXPECT_NE(static_cast<SkColor>(SK_ColorTRANSPARENT), outputColor);
149 EXPECT_EQ(outputColor, SkColorSetARGB(255, 33, 44, 55));
151 color = SkColorSetARGB(128, 128, 128, 128);
152 paint.setColor(color);
153 canvas.drawRect(SkRect::MakeWH(383, 383), paint);
155 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
157 paint.setXfermodeMode(SkXfermode::kClear_Mode);
158 canvas.drawRect(SkRect::MakeWH(382, 382), paint);
160 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
162 canvas.drawRect(SkRect::MakeWH(383, 383), paint);
164 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
165 EXPECT_EQ(static_cast<SkColor>(SK_ColorTRANSPARENT), outputColor);
167 canvas.translate(128, 128);
168 color = SkColorSetARGB(255, 11, 22, 33);
169 paint.setColor(color);
170 paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
171 canvas.drawRect(SkRect::MakeWH(255, 255), paint);
173 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
174 EXPECT_NE(static_cast<SkColor>(SK_ColorTRANSPARENT), outputColor);
175 EXPECT_EQ(color, outputColor);
178 canvas.drawRect(SkRect::MakeWH(255, 255), paint);
180 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
183 TEST(AnalysisCanvasTest, FilterPaint) {
184 skia::AnalysisCanvas canvas(255, 255);
187 skia::RefPtr<SkImageFilter> filter = skia::AdoptRef(SkOffsetImageFilter::Create(10, 10));
188 paint.setImageFilter(filter.get());
189 canvas.drawRect(SkRect::MakeWH(255, 255), paint);
192 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
195 TEST(AnalysisCanvasTest, ClipPath) {
196 skia::AnalysisCanvas canvas(255, 255);
198 // Skia will look for paths that are actually rects and treat
199 // them as such. We add a divot to the following path to prevent
200 // this optimization and truly test clipPath's behavior.
203 path.lineTo(128, 50);
205 path.lineTo(255, 255);
209 SolidColorFill(canvas);
210 canvas.clipPath(path);
211 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
214 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
216 canvas.clipPath(path);
217 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
220 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
222 SolidColorFill(canvas);
223 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
226 TEST(AnalysisCanvasTest, SaveLayerRestore) {
227 skia::AnalysisCanvas canvas(255, 255);
230 SolidColorFill(canvas);
231 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
233 SkRect bounds = SkRect::MakeWH(255, 255);
235 paint.setColor(SkColorSetARGB(255, 255, 255, 255));
236 paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
238 // This should force non-transparency
239 canvas.saveLayer(&bounds, &paint);
240 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
241 EXPECT_NE(static_cast<SkColor>(SK_ColorTRANSPARENT), outputColor);
243 TransparentFill(canvas);
244 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
246 SolidColorFill(canvas);
247 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
248 EXPECT_NE(static_cast<SkColor>(SK_ColorTRANSPARENT), outputColor);
250 paint.setXfermodeMode(SkXfermode::kDst_Mode);
252 // This should force non-solid color
253 canvas.saveLayer(&bounds, &paint);
254 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
256 TransparentFill(canvas);
257 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
259 SolidColorFill(canvas);
260 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
263 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
265 TransparentFill(canvas);
266 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
268 SolidColorFill(canvas);
269 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
270 EXPECT_NE(static_cast<SkColor>(SK_ColorTRANSPARENT), outputColor);
273 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
274 EXPECT_NE(static_cast<SkColor>(SK_ColorTRANSPARENT), outputColor);
276 TransparentFill(canvas);
277 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
278 EXPECT_EQ(static_cast<SkColor>(SK_ColorTRANSPARENT), outputColor);
280 SolidColorFill(canvas);
281 EXPECT_TRUE(canvas.GetColorIfSolid(&outputColor));
282 EXPECT_NE(static_cast<SkColor>(SK_ColorTRANSPARENT), outputColor);
285 TEST(AnalysisCanvasTest, EarlyOutNotSolid) {
286 SkTileGridFactory::TileGridInfo tile_grid_info;
287 tile_grid_info.fTileInterval.set(256, 256);
288 tile_grid_info.fOffset.setZero();
289 tile_grid_info.fMargin.setEmpty();
290 SkTileGridFactory factory(tile_grid_info);
291 SkPictureRecorder recorder;
293 // Create a picture with 3 commands, last of which is non-solid.
294 skia::RefPtr<SkCanvas> record_canvas =
295 skia::SharePtr(recorder.beginRecording(256, 256, &factory));
297 std::string text = "text";
298 SkPoint point = SkPoint::Make(SkIntToScalar(25), SkIntToScalar(25));
301 paint.setColor(SkColorSetARGB(255, 255, 255, 255));
302 paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
304 record_canvas->drawRect(SkRect::MakeWH(256, 256), paint);
305 record_canvas->drawRect(SkRect::MakeWH(256, 256), paint);
306 record_canvas->drawText(
307 text.c_str(), text.length(), point.fX, point.fY, paint);
309 skia::RefPtr<SkPicture> picture = skia::AdoptRef(recorder.endRecording());
311 // Draw the picture into the analysis canvas, using the canvas as a callback
313 skia::AnalysisCanvas canvas(256, 256);
314 picture->draw(&canvas, &canvas);
316 // Ensure that canvas is not solid.
317 SkColor output_color;
318 EXPECT_FALSE(canvas.GetColorIfSolid(&output_color));
320 // Verify that we aborted drawing.
321 EXPECT_TRUE(canvas.abortDrawing());
325 TEST(AnalysisCanvasTest, ClipComplexRegion) {
326 skia::AnalysisCanvas canvas(255, 255);
330 path.lineTo(128, 50);
332 path.lineTo(255, 255);
334 SkIRect pathBounds = path.getBounds().round();
336 region.setPath(path, SkRegion(pathBounds));
339 SolidColorFill(canvas);
340 canvas.clipRegion(region);
341 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
344 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
346 canvas.clipRegion(region);
347 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
350 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));
352 SolidColorFill(canvas);
353 EXPECT_FALSE(canvas.GetColorIfSolid(&outputColor));