Move parseFontFaceDescriptor to CSSPropertyParser.cpp
[chromium-blink-merge.git] / third_party / WebKit / Source / platform / graphics / GraphicsContextTest.cpp
blobc1828808dab96bbb48578f98cf93cb9db9de8e00
1 /*
2 * Copyright (C) 2012 Google Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
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9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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25 #include "config.h"
26 #include "platform/graphics/GraphicsContext.h"
28 #include "platform/graphics/BitmapImage.h"
29 #include "platform/graphics/paint/DisplayItemList.h"
30 #include "third_party/skia/include/core/SkBitmap.h"
31 #include "third_party/skia/include/core/SkCanvas.h"
32 #include "third_party/skia/include/core/SkPicture.h"
33 #include "third_party/skia/include/core/SkShader.h"
34 #include <gtest/gtest.h>
36 namespace blink {
38 #define EXPECT_EQ_RECT(a, b) \
39 EXPECT_EQ(a.x(), b.x()); \
40 EXPECT_EQ(a.y(), b.y()); \
41 EXPECT_EQ(a.width(), b.width()); \
42 EXPECT_EQ(a.height(), b.height());
44 #define EXPECT_OPAQUE_PIXELS_IN_RECT(bitmap, opaqueRect) \
45 { \
46 SkAutoLockPixels locker(bitmap); \
47 for (int y = opaqueRect.y(); y < opaqueRect.maxY(); ++y) \
48 for (int x = opaqueRect.x(); x < opaqueRect.maxX(); ++x) { \
49 int alpha = *bitmap.getAddr32(x, y) >> 24; \
50 EXPECT_EQ(255, alpha); \
51 } \
54 #define EXPECT_OPAQUE_PIXELS_ONLY_IN_RECT(bitmap, opaqueRect) \
55 { \
56 SkAutoLockPixels locker(bitmap); \
57 for (int y = 0; y < bitmap.height(); ++y) \
58 for (int x = 0; x < bitmap.width(); ++x) { \
59 int alpha = *bitmap.getAddr32(x, y) >> 24; \
60 bool opaque = opaqueRect.contains(x, y); \
61 EXPECT_EQ(opaque, alpha == 255); \
62 } \
65 TEST(GraphicsContextTest, pictureRecording)
67 SkBitmap bitmap;
68 bitmap.allocN32Pixels(100, 100);
69 bitmap.eraseColor(0);
70 SkCanvas canvas(bitmap);
72 OwnPtr<DisplayItemList> displayItemList = DisplayItemList::create();
73 GraphicsContext context(displayItemList.get());
75 Color opaque(1.0f, 0.0f, 0.0f, 1.0f);
76 FloatRect bounds(0, 0, 100, 100);
78 context.beginRecording(bounds);
79 context.fillRect(FloatRect(0, 0, 50, 50), opaque, SkXfermode::kSrcOver_Mode);
80 RefPtr<const SkPicture> picture = context.endRecording();
81 canvas.drawPicture(picture.get());
82 EXPECT_OPAQUE_PIXELS_ONLY_IN_RECT(bitmap, IntRect(0, 0, 50, 50))
84 context.beginRecording(bounds);
85 context.fillRect(FloatRect(0, 0, 100, 100), opaque, SkXfermode::kSrcOver_Mode);
86 picture = context.endRecording();
87 // Make sure the opaque region was unaffected by the rect drawn during Picture recording.
88 EXPECT_OPAQUE_PIXELS_ONLY_IN_RECT(bitmap, IntRect(0, 0, 50, 50))
90 canvas.drawPicture(picture.get());
91 EXPECT_OPAQUE_PIXELS_ONLY_IN_RECT(bitmap, IntRect(0, 0, 100, 100))
94 TEST(GraphicsContextTest, UnboundedDrawsAreClipped)
96 SkBitmap bitmap;
97 bitmap.allocN32Pixels(400, 400);
98 bitmap.eraseColor(0);
99 SkCanvas canvas(bitmap);
101 Color opaque(1.0f, 0.0f, 0.0f, 1.0f);
102 Color alpha(0.0f, 0.0f, 0.0f, 0.0f);
103 FloatRect bounds(0, 0, 100, 100);
105 OwnPtr<DisplayItemList> displayItemList = DisplayItemList::create();
106 GraphicsContext context(displayItemList.get());
107 context.beginRecording(bounds);
109 context.setShouldAntialias(false);
110 context.setMiterLimit(1);
111 context.setStrokeThickness(5);
112 context.setLineCap(SquareCap);
113 context.setStrokeStyle(SolidStroke);
115 // Make skia unable to compute fast bounds for our paths.
116 DashArray dashArray;
117 dashArray.append(1);
118 dashArray.append(0);
119 context.setLineDash(dashArray, 0);
121 // Make the device opaque in 10,10 40x40.
122 context.fillRect(FloatRect(10, 10, 40, 40), opaque, SkXfermode::kSrcOver_Mode);
123 RefPtr<const SkPicture> picture = context.endRecording();
124 canvas.drawPicture(picture.get());
125 EXPECT_OPAQUE_PIXELS_ONLY_IN_RECT(bitmap, IntRect(10, 10, 40, 40));
127 context.beginRecording(bounds);
128 // Clip to the left edge of the opaque area.
129 context.clip(IntRect(10, 10, 10, 40));
131 // Draw a path that gets clipped. This should destroy the opaque area but only inside the clip.
132 Path path;
133 path.moveTo(FloatPoint(10, 10));
134 path.addLineTo(FloatPoint(40, 40));
135 SkPaint paint;
136 paint.setColor(alpha.rgb());
137 paint.setXfermodeMode(SkXfermode::kSrcOut_Mode);
138 context.drawPath(path.skPath(), paint);
140 picture = context.endRecording();
141 canvas.drawPicture(picture.get());
142 EXPECT_OPAQUE_PIXELS_IN_RECT(bitmap, IntRect(20, 10, 30, 40));
145 } // namespace blink