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      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 <SkBlurDrawLooper.h>
     21 #include <SkColorMatrixFilter.h>
     22 #include <SkColorSpace.h>
     23 #include <SkImagePriv.h>
     24 #include <SkPathOps.h>
     25 #include <SkShader.h>
     26 
     27 using namespace android;
     28 using namespace android::uirenderer;
     29 
     30 SkBitmap createSkBitmap(int width, int height) {
     31     SkBitmap bitmap;
     32     SkImageInfo info = SkImageInfo::Make(width, height, kN32_SkColorType, kPremul_SkAlphaType);
     33     bitmap.setInfo(info);
     34     bitmap.allocPixels(info);
     35     return bitmap;
     36 }
     37 
     38 /**
     39  * 1x1 bitmaps must not be optimized into solid color shaders, since HWUI can't
     40  * compose/render color shaders
     41  */
     42 TEST(SkiaBehavior, CreateBitmapShader1x1) {
     43     SkBitmap origBitmap = createSkBitmap(1, 1);
     44     sk_sp<SkImage> image = SkMakeImageFromRasterBitmap(origBitmap, kNever_SkCopyPixelsMode);
     45     sk_sp<SkShader> s = image->makeShader(
     46             SkShader::kClamp_TileMode,
     47             SkShader::kRepeat_TileMode,
     48             nullptr);
     49 
     50     SkBitmap bitmap;
     51     SkShader::TileMode xy[2];
     52     ASSERT_TRUE(s->isABitmap(&bitmap, nullptr, xy))
     53         << "1x1 bitmap shader must query as bitmap shader";
     54     EXPECT_EQ(origBitmap.pixelRef(), bitmap.pixelRef());
     55 }
     56 
     57 TEST(SkiaBehavior, genIds) {
     58     SkBitmap bitmap = createSkBitmap(100, 100);
     59     uint32_t genId = bitmap.getGenerationID();
     60     bitmap.notifyPixelsChanged();
     61     EXPECT_NE(genId, bitmap.getGenerationID());
     62 }
     63 
     64 TEST(SkiaBehavior, lightingColorFilter_simplify) {
     65     {
     66         sk_sp<SkColorFilter> filter(
     67                 SkColorMatrixFilter::MakeLightingFilter(0x11223344, 0));
     68 
     69         SkColor observedColor;
     70         SkBlendMode observedMode;
     71         ASSERT_TRUE(filter->asColorMode(&observedColor, &observedMode));
     72         EXPECT_EQ(0xFF223344, observedColor);
     73         EXPECT_EQ(SkBlendMode::kModulate, observedMode);
     74     }
     75 
     76     {
     77         sk_sp<SkColorFilter> failFilter(
     78                 SkColorMatrixFilter::MakeLightingFilter(0x11223344, 0x1));
     79         EXPECT_FALSE(failFilter->asColorMode(nullptr, nullptr));
     80     }
     81 }
     82 
     83 TEST(SkiaBehavior, porterDuffCreateIsCached) {
     84     SkPaint paint;
     85     paint.setBlendMode(SkBlendMode::kOverlay);
     86     auto expected = paint.getBlendMode();
     87     paint.setBlendMode(SkBlendMode::kClear);
     88     ASSERT_NE(expected, paint.getBlendMode());
     89     paint.setBlendMode(SkBlendMode::kOverlay);
     90     ASSERT_EQ(expected, paint.getBlendMode());
     91 }
     92 
     93 TEST(SkiaBehavior, pathIntersection) {
     94     SkPath p0, p1, result;
     95     p0.addRect(SkRect::MakeXYWH(-5.0f, 0.0f, 1080.0f, 242.0f));
     96     p1.addRect(SkRect::MakeXYWH(0.0f, 0.0f, 1080.0f, 242.0f));
     97     Op(p0, p1, kIntersect_SkPathOp, &result);
     98     SkRect resultRect;
     99     ASSERT_TRUE(result.isRect(&resultRect));
    100     ASSERT_EQ(SkRect::MakeXYWH(0.0f, 0.0f, 1075.0f, 242.0f), resultRect);
    101 }
    102 
    103 TEST(SkiaBehavior, srgbColorSpaceIsSingleton) {
    104     sk_sp<SkColorSpace> sRGB1 = SkColorSpace::MakeSRGB();
    105     sk_sp<SkColorSpace> sRGB2 = SkColorSpace::MakeSRGB();
    106     ASSERT_EQ(sRGB1.get(), sRGB2.get());
    107 }
    108 
    109 TEST(SkiaBehavior, blurDrawLooper) {
    110     sk_sp<SkDrawLooper> looper = SkBlurDrawLooper::Make(SK_ColorRED, 5.0f, 3.0f, 4.0f);
    111 
    112     SkDrawLooper::BlurShadowRec blur;
    113     bool success = looper->asABlurShadow(&blur);
    114     ASSERT_TRUE(success);
    115 
    116     ASSERT_EQ(SK_ColorRED, blur.fColor);
    117     ASSERT_EQ(5.0f, blur.fSigma);
    118     ASSERT_EQ(3.0f, blur.fOffset.fX);
    119     ASSERT_EQ(4.0f, blur.fOffset.fY);
    120 }
    121