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 <gtest/gtest.h>
20 #include <RecordingCanvas.h>
21 #include <SkBlurDrawLooper.h>
22 #include <SkCanvasStateUtils.h>
23 #include <SkPicture.h>
24 #include <SkPictureRecorder.h>
25
26 using namespace android;
27 using namespace android::uirenderer;
28
29 /**
30 * Verify that we get the same culling bounds for text for (1) drawing glyphs
31 * directly to a Canvas or (2) going through a SkPicture as an intermediate step.
32 */
OPENGL_PIPELINE_TEST(SkiaCanvasProxy,drawGlyphsViaPicture)33 OPENGL_PIPELINE_TEST(SkiaCanvasProxy, drawGlyphsViaPicture) {
34 auto dl = TestUtils::createDisplayList<RecordingCanvas>(200, 200, [](RecordingCanvas& canvas) {
35 // setup test variables
36 SkPaint paint;
37 paint.setAntiAlias(true);
38 paint.setTextSize(20);
39 paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
40 static const char* text = "testing text bounds";
41
42 // draw text directly into Recording canvas
43 TestUtils::drawUtf8ToCanvas(&canvas, text, paint, 25, 25);
44
45 // record the same text draw into a SkPicture and replay it into a Recording canvas
46 SkPictureRecorder recorder;
47 SkCanvas* skCanvas = recorder.beginRecording(200, 200, NULL, 0);
48 std::unique_ptr<Canvas> pictCanvas(Canvas::create_canvas(skCanvas,
49 Canvas::XformToSRGB::kDefer));
50 TestUtils::drawUtf8ToCanvas(pictCanvas.get(), text, paint, 25, 25);
51 sk_sp<SkPicture> picture = recorder.finishRecordingAsPicture();
52
53 canvas.asSkCanvas()->drawPicture(picture);
54 });
55
56 // verify that the text bounds and matrices match
57 ASSERT_EQ(2U, dl->getOps().size());
58 auto directOp = dl->getOps()[0];
59 auto pictureOp = dl->getOps()[1];
60 ASSERT_EQ(RecordedOpId::TextOp, directOp->opId);
61 EXPECT_EQ(directOp->opId, pictureOp->opId);
62 EXPECT_EQ(directOp->unmappedBounds, pictureOp->unmappedBounds);
63 EXPECT_EQ(directOp->localMatrix, pictureOp->localMatrix);
64 }
65
TEST(SkiaCanvas,drawShadowLayer)66 TEST(SkiaCanvas, drawShadowLayer) {
67 auto surface = SkSurface::MakeRasterN32Premul(10, 10);
68 SkiaCanvas canvas(surface->getCanvas(), Canvas::XformToSRGB::kDefer);
69
70 // clear to white
71 canvas.drawColor(SK_ColorWHITE, SkBlendMode::kSrc);
72
73 SkPaint paint;
74 // it is transparent to ensure that we still draw the rect since it has a looper
75 paint.setColor(SK_ColorTRANSPARENT);
76 // this is how view's shadow layers are implemented
77 paint.setLooper(SkBlurDrawLooper::Make(0xF0000000, 6.0f, 0, 10));
78 canvas.drawRect(3, 3, 7, 7, paint);
79
80 ASSERT_EQ(TestUtils::getColor(surface, 0, 0), SK_ColorWHITE);
81 ASSERT_NE(TestUtils::getColor(surface, 5, 5), SK_ColorWHITE);
82 }
83
TEST(SkiaCanvas,colorSpaceXform)84 TEST(SkiaCanvas, colorSpaceXform) {
85 sk_sp<SkColorSpace> adobe = SkColorSpace::MakeRGB(SkColorSpace::kSRGB_RenderTargetGamma,
86 SkColorSpace::kAdobeRGB_Gamut);
87
88 SkImageInfo adobeInfo = SkImageInfo::Make(1, 1, kN32_SkColorType, kOpaque_SkAlphaType, adobe);
89 sk_sp<Bitmap> adobeBitmap = Bitmap::allocateHeapBitmap(adobeInfo);
90 SkBitmap adobeSkBitmap;
91 adobeBitmap->getSkBitmap(&adobeSkBitmap);
92 *adobeSkBitmap.getAddr32(0, 0) = 0xFF0000F0; // Opaque, almost fully-red
93
94 SkImageInfo info = adobeInfo.makeColorSpace(nullptr);
95 sk_sp<Bitmap> bitmap = Bitmap::allocateHeapBitmap(info);
96 SkBitmap skBitmap;
97 bitmap->getSkBitmap(&skBitmap);
98
99 // Create a software canvas.
100 SkiaCanvas canvas(skBitmap);
101 canvas.drawBitmap(*adobeBitmap, 0, 0, nullptr);
102 // The result should be fully red, since we convert to sRGB at draw time.
103 ASSERT_EQ(0xFF0000FF, *skBitmap.getAddr32(0, 0));
104
105 // Create a software canvas with an Adobe color space.
106 SkiaCanvas adobeSkCanvas(adobeSkBitmap);
107 adobeSkCanvas.drawBitmap(*bitmap, 0, 0, nullptr);
108 // The result should be less than fully red, since we convert to Adobe RGB at draw time.
109 ASSERT_EQ(0xFF0000DC, *adobeSkBitmap.getAddr32(0, 0));
110
111 // Now try in kDefer mode. This is a little strange given that, in practice, all software
112 // canvases are kImmediate.
113 SkCanvas skCanvas(skBitmap);
114 SkiaCanvas deferCanvas(&skCanvas, Canvas::XformToSRGB::kDefer);
115 deferCanvas.drawBitmap(*adobeBitmap, 0, 0, nullptr);
116 // The result should be as before, since we deferred the conversion to sRGB.
117 ASSERT_EQ(0xFF0000DC, *skBitmap.getAddr32(0, 0));
118
119 // Test picture recording. We will kDefer the xform at recording time, but handle it when
120 // we playback to the software canvas.
121 SkPictureRecorder recorder;
122 SkCanvas* skPicCanvas = recorder.beginRecording(1, 1, NULL, 0);
123 SkiaCanvas picCanvas(skPicCanvas, Canvas::XformToSRGB::kDefer);
124 picCanvas.drawBitmap(*adobeBitmap, 0, 0, nullptr);
125 sk_sp<SkPicture> picture = recorder.finishRecordingAsPicture();
126
127 // Playback to a deferred canvas. The result should be as before.
128 deferCanvas.asSkCanvas()->drawPicture(picture);
129 ASSERT_EQ(0xFF0000DC, *skBitmap.getAddr32(0, 0));
130
131 // Playback to an immediate canvas. The result should be fully red.
132 canvas.asSkCanvas()->drawPicture(picture);
133 ASSERT_EQ(0xFF0000FF, *skBitmap.getAddr32(0, 0));
134 }
135
TEST(SkiaCanvas,captureCanvasState)136 TEST(SkiaCanvas, captureCanvasState) {
137 // Create a software canvas.
138 SkImageInfo info = SkImageInfo::Make(1, 1, kN32_SkColorType, kOpaque_SkAlphaType);
139 sk_sp<Bitmap> bitmap = Bitmap::allocateHeapBitmap(info);
140 SkBitmap skBitmap;
141 bitmap->getSkBitmap(&skBitmap);
142 skBitmap.eraseColor(0);
143 SkiaCanvas canvas(skBitmap);
144
145 // Translate, then capture and verify the CanvasState.
146 canvas.translate(1.0f, 1.0f);
147 SkCanvasState* state = canvas.captureCanvasState();
148 ASSERT_NE(state, nullptr);
149 std::unique_ptr<SkCanvas> newCanvas = SkCanvasStateUtils::MakeFromCanvasState(state);
150 ASSERT_NE(newCanvas.get(), nullptr);
151 newCanvas->translate(-1.0f, -1.0f);
152 ASSERT_TRUE(newCanvas->getTotalMatrix().isIdentity());
153 SkCanvasStateUtils::ReleaseCanvasState(state);
154
155 // Create a picture canvas.
156 SkPictureRecorder recorder;
157 SkCanvas* skPicCanvas = recorder.beginRecording(1, 1, NULL, 0);
158 SkiaCanvas picCanvas(skPicCanvas, Canvas::XformToSRGB::kDefer);
159 state = picCanvas.captureCanvasState();
160
161 // Verify that we cannot get the CanvasState.
162 ASSERT_EQ(state, nullptr);
163 }
164