SkiaBehaviorTests.cpp revision 62feb3a0b4690144a067080ab17beae160ea6320 
1/*
2 * Copyright (C) 2015 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 <SkColorMatrixFilter.h>
21#include <SkImagePriv.h>
22#include <SkShader.h>
23
24using namespace android;
25using namespace android::uirenderer;
26
27/**
28 * 1x1 bitmaps must not be optimized into solid color shaders, since HWUI can't
29 * compose/render color shaders
30 */
31TEST(SkiaBehavior, CreateBitmapShader1x1) {
32    SkBitmap origBitmap = TestUtils::createSkBitmap(1, 1);
33    sk_sp<SkShader> s = SkMakeBitmapShader(
34            origBitmap,
35            SkShader::kClamp_TileMode,
36            SkShader::kRepeat_TileMode,
37            nullptr,
38            kNever_SkCopyPixelsMode,
39            nullptr);
40
41    SkBitmap bitmap;
42    SkShader::TileMode xy[2];
43    ASSERT_TRUE(s->isABitmap(&bitmap, nullptr, xy))
44        << "1x1 bitmap shader must query as bitmap shader";
45    EXPECT_EQ(SkShader::kClamp_TileMode, xy[0]);
46    EXPECT_EQ(SkShader::kRepeat_TileMode, xy[1]);
47    EXPECT_EQ(origBitmap.pixelRef(), bitmap.pixelRef());
48}
49
50TEST(SkiaBehavior, genIds) {
51    SkBitmap bitmap = TestUtils::createSkBitmap(100, 100);
52    uint32_t genId = bitmap.getGenerationID();
53    bitmap.notifyPixelsChanged();
54    EXPECT_NE(genId, bitmap.getGenerationID());
55}
56
57TEST(SkiaBehavior, lightingColorFilter_simplify) {
58    {
59        SkAutoTUnref<SkColorFilter> filter(
60                SkColorMatrixFilter::CreateLightingFilter(0x11223344, 0));
61
62        SkColor observedColor;
63        SkXfermode::Mode observedMode;
64        ASSERT_TRUE(filter->asColorMode(&observedColor, &observedMode));
65        EXPECT_EQ(0xFF223344, observedColor);
66        EXPECT_EQ(SkXfermode::Mode::kModulate_Mode, observedMode);
67    }
68
69    {
70        SkAutoTUnref<SkColorFilter> failFilter(
71                SkColorMatrixFilter::CreateLightingFilter(0x11223344, 0x1));
72        EXPECT_FALSE(failFilter->asColorMode(nullptr, nullptr));
73    }
74}
75