1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "tests/common/TestUtils.h"
18
19 #include <hwui/Paint.h>
20 #include <SkAlphaType.h>
21 #include <SkBitmap.h>
22 #include <SkBlendMode.h>
23 #include <SkCanvas.h>
24 #include <SkCanvasStateUtils.h>
25 #include <SkColor.h>
26 #include <SkColorSpace.h>
27 #include <SkColorType.h>
28 #include <SkImageInfo.h>
29 #include <SkPicture.h>
30 #include <SkPictureRecorder.h>
31 #include <SkRefCnt.h>
32 #include <SkSurface.h>
33 #include <gtest/gtest.h>
34
35 using namespace android;
36 using namespace android::uirenderer;
37
TEST(SkiaCanvas,drawShadowLayer)38 TEST(SkiaCanvas, drawShadowLayer) {
39 auto surface = SkSurfaces::Raster(SkImageInfo::MakeN32Premul(10, 10));
40 SkiaCanvas canvas(surface->getCanvas());
41
42 // clear to white
43 canvas.drawColor(SK_ColorWHITE, SkBlendMode::kSrc);
44
45 Paint paint;
46 // it is transparent to ensure that we still draw the rect since it has a looper
47 paint.setColor(SK_ColorTRANSPARENT);
48 // this is how view's shadow layers are implemented
49 paint.setLooper(BlurDrawLooper::Make({0, 0, 0, 240.0f / 255}, nullptr, 6.0f, {0, 10}));
50 canvas.drawRect(3, 3, 7, 7, paint);
51
52 ASSERT_EQ(TestUtils::getColor(surface, 0, 0), SK_ColorWHITE);
53 ASSERT_NE(TestUtils::getColor(surface, 5, 5), SK_ColorWHITE);
54 }
55
TEST(SkiaCanvas,colorSpaceXform)56 TEST(SkiaCanvas, colorSpaceXform) {
57 sk_sp<SkColorSpace> adobe = SkColorSpace::MakeRGB(SkNamedTransferFn::kSRGB,
58 SkNamedGamut::kAdobeRGB);
59
60 SkImageInfo adobeInfo = SkImageInfo::Make(1, 1, kN32_SkColorType, kOpaque_SkAlphaType, adobe);
61 sk_sp<Bitmap> adobeBitmap = Bitmap::allocateHeapBitmap(adobeInfo);
62 SkBitmap adobeSkBitmap;
63 adobeBitmap->getSkBitmap(&adobeSkBitmap);
64 *adobeSkBitmap.getAddr32(0, 0) = 0xFF0000F0; // Opaque, almost fully-red
65
66 SkImageInfo info = adobeInfo.makeColorSpace(SkColorSpace::MakeSRGB());
67 sk_sp<Bitmap> bitmap = Bitmap::allocateHeapBitmap(info);
68 SkBitmap skBitmap;
69 bitmap->getSkBitmap(&skBitmap);
70
71 // Create a software sRGB canvas.
72 SkiaCanvas canvas(skBitmap);
73 canvas.drawBitmap(*adobeBitmap, 0, 0, nullptr);
74 // The result should be fully red, since we convert to sRGB at draw time.
75 ASSERT_EQ(0xFF0000FF, *skBitmap.getAddr32(0, 0));
76
77 // Create a software canvas with an Adobe color space.
78 SkiaCanvas adobeSkCanvas(adobeSkBitmap);
79 adobeSkCanvas.drawBitmap(*bitmap, 0, 0, nullptr);
80 // The result should be less than fully red, since we convert to Adobe RGB at draw time.
81 ASSERT_EQ(0xFF0000DC, *adobeSkBitmap.getAddr32(0, 0));
82
83 // Test picture recording.
84 SkPictureRecorder recorder;
85 SkCanvas* skPicCanvas = recorder.beginRecording(1, 1);
86 SkiaCanvas picCanvas(skPicCanvas);
87 picCanvas.drawBitmap(*adobeBitmap, 0, 0, nullptr);
88 sk_sp<SkPicture> picture = recorder.finishRecordingAsPicture();
89
90 // Playback to a software sRGB canvas. The result should be fully red.
91 canvas.drawPicture(*picture);
92 ASSERT_EQ(0xFF0000FF, *skBitmap.getAddr32(0, 0));
93 }
94
TEST(SkiaCanvas,captureCanvasState)95 TEST(SkiaCanvas, captureCanvasState) {
96 // Create a software canvas.
97 SkImageInfo info = SkImageInfo::Make(1, 1, kN32_SkColorType, kOpaque_SkAlphaType);
98 sk_sp<Bitmap> bitmap = Bitmap::allocateHeapBitmap(info);
99 SkBitmap skBitmap;
100 bitmap->getSkBitmap(&skBitmap);
101 skBitmap.eraseColor(0);
102 SkiaCanvas canvas(skBitmap);
103
104 // Translate, then capture and verify the CanvasState.
105 canvas.translate(1.0f, 1.0f);
106 SkCanvasState* state = canvas.captureCanvasState();
107 ASSERT_NE(state, nullptr);
108 std::unique_ptr<SkCanvas> newCanvas = SkCanvasStateUtils::MakeFromCanvasState(state);
109 ASSERT_NE(newCanvas.get(), nullptr);
110 newCanvas->translate(-1.0f, -1.0f);
111 ASSERT_TRUE(newCanvas->getTotalMatrix().isIdentity());
112 SkCanvasStateUtils::ReleaseCanvasState(state);
113
114 // Create a picture canvas.
115 SkPictureRecorder recorder;
116 SkCanvas* skPicCanvas = recorder.beginRecording(1, 1);
117 SkiaCanvas picCanvas(skPicCanvas);
118 state = picCanvas.captureCanvasState();
119
120 // Verify that we cannot get the CanvasState.
121 ASSERT_EQ(state, nullptr);
122 }
123