Leon Scroggins III | 07a722c | 2018-01-16 15:01:17 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "SkAndroidCodec.h" |
| 9 | #include "SkCodec.h" |
Leon Scroggins III | da3e9ad | 2018-01-26 15:48:26 -0500 | [diff] [blame^] | 10 | #include "SkCodecImageGenerator.h" |
Leon Scroggins III | 07a722c | 2018-01-16 15:01:17 -0500 | [diff] [blame] | 11 | #include "SkEncodedImageFormat.h" |
Leon Scroggins III | da3e9ad | 2018-01-26 15:48:26 -0500 | [diff] [blame^] | 12 | #include "SkPixmapPriv.h" |
Leon Scroggins III | 07a722c | 2018-01-16 15:01:17 -0500 | [diff] [blame] | 13 | |
| 14 | #include "Resources.h" |
| 15 | #include "Test.h" |
| 16 | |
| 17 | static SkISize times(const SkISize& size, float factor) { |
| 18 | return { (int) (size.width() * factor), (int) (size.height() * factor) }; |
| 19 | } |
| 20 | |
| 21 | static SkISize plus(const SkISize& size, int term) { |
| 22 | return { size.width() + term, size.height() + term }; |
| 23 | } |
| 24 | |
| 25 | static bool invalid(const SkISize& size) { |
| 26 | return size.width() < 1 || size.height() < 1; |
| 27 | } |
| 28 | |
| 29 | DEF_TEST(AndroidCodec_computeSampleSize, r) { |
| 30 | if (GetResourcePath().isEmpty()) { |
| 31 | return; |
| 32 | } |
| 33 | for (const char* file : { "images/color_wheel.webp", |
| 34 | "images/ship.png", |
| 35 | "images/dog.jpg", |
| 36 | "images/color_wheel.gif", |
| 37 | "images/rle.bmp", |
| 38 | "images/google_chrome.ico", |
| 39 | "images/mandrill.wbmp", |
| 40 | #ifdef SK_CODEC_DECODES_RAW |
| 41 | "images/sample_1mp.dng", |
| 42 | #endif |
| 43 | }) { |
| 44 | auto data = GetResourceAsData(file); |
| 45 | if (!data) { |
| 46 | ERRORF(r, "Could not get %s", file); |
| 47 | continue; |
| 48 | } |
| 49 | |
| 50 | auto codec = SkAndroidCodec::MakeFromCodec(SkCodec::MakeFromData(std::move(data))); |
| 51 | if (!codec) { |
| 52 | ERRORF(r, "Could not create codec for %s", file); |
| 53 | continue; |
| 54 | } |
| 55 | |
| 56 | const auto dims = codec->getInfo().dimensions(); |
| 57 | const SkISize downscales[] = { |
| 58 | plus(dims, -1), |
| 59 | times(dims, .15f), |
| 60 | times(dims, .6f), |
| 61 | { (int32_t) (dims.width() * .25f), (int32_t) (dims.height() * .75f ) }, |
| 62 | { 1, 1 }, |
| 63 | { 1, 2 }, |
| 64 | { 2, 1 }, |
| 65 | { 0, -1 }, |
| 66 | { dims.width(), dims.height() - 1 }, |
| 67 | }; |
| 68 | for (SkISize size : downscales) { |
| 69 | const auto requested = size; |
| 70 | const int computedSampleSize = codec->computeSampleSize(&size); |
| 71 | REPORTER_ASSERT(r, size.width() >= 1 && size.height() >= 1); |
| 72 | if (codec->getEncodedFormat() == SkEncodedImageFormat::kWEBP) { |
| 73 | // WebP supports arbitrary down-scaling. |
| 74 | REPORTER_ASSERT(r, size == requested || invalid(requested)); |
| 75 | } else if (computedSampleSize == 1) { |
| 76 | REPORTER_ASSERT(r, size == dims); |
| 77 | } else { |
| 78 | REPORTER_ASSERT(r, computedSampleSize > 1); |
| 79 | if (size.width() >= dims.width() || size.height() >= dims.height()) { |
| 80 | ERRORF(r, "File %s's computed sample size (%i) is bigger than" |
| 81 | " original? original: %i x %i\tsampled: %i x %i", |
| 82 | file, computedSampleSize, dims.width(), dims.height(), |
| 83 | size.width(), size.height()); |
| 84 | } |
| 85 | REPORTER_ASSERT(r, size.width() >= requested.width() && |
| 86 | size.height() >= requested.height()); |
| 87 | REPORTER_ASSERT(r, size.width() < dims.width() && |
| 88 | size.height() < dims.height()); |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | const SkISize upscales[] = { |
| 93 | dims, plus(dims, 5), times(dims, 2), |
| 94 | }; |
| 95 | for (SkISize size : upscales) { |
| 96 | const int computedSampleSize = codec->computeSampleSize(&size); |
| 97 | REPORTER_ASSERT(r, computedSampleSize == 1); |
| 98 | REPORTER_ASSERT(r, dims == size); |
| 99 | } |
| 100 | |
| 101 | // This mimics how Android's ImageDecoder uses SkAndroidCodec. A client |
| 102 | // can choose their dimensions based on calling getSampledDimensions, |
| 103 | // but the ImageDecoder API takes an arbitrary size. It then uses |
| 104 | // computeSampleSize to determine the best dimensions and sampleSize. |
| 105 | // It should return the same dimensions. the sampleSize may be different |
| 106 | // due to integer division. |
| 107 | for (int sampleSize : { 1, 2, 3, 4, 8, 16, 32 }) { |
| 108 | const SkISize sampledDims = codec->getSampledDimensions(sampleSize); |
| 109 | SkISize size = sampledDims; |
| 110 | const int computedSampleSize = codec->computeSampleSize(&size); |
| 111 | if (sampledDims != size) { |
| 112 | ERRORF(r, "File '%s'->getSampledDimensions(%i) yields computed" |
| 113 | " sample size of %i\n\tsampledDimensions: %i x %i\t" |
| 114 | "computed dimensions: %i x %i", |
| 115 | file, sampleSize, computedSampleSize, |
| 116 | sampledDims.width(), sampledDims.height(), |
| 117 | size.width(), size.height()); |
| 118 | } |
| 119 | } |
| 120 | } |
| 121 | } |
Leon Scroggins III | da3e9ad | 2018-01-26 15:48:26 -0500 | [diff] [blame^] | 122 | |
| 123 | DEF_TEST(AndroidCodec_orientation, r) { |
| 124 | if (GetResourcePath().isEmpty()) { |
| 125 | return; |
| 126 | } |
| 127 | |
| 128 | for (const char* ext : { "jpg", "webp" }) |
| 129 | for (char i = '1'; i <= '8'; ++i) { |
| 130 | SkString path = SkStringPrintf("images/orientation/%c.%s", i, ext); |
| 131 | auto data = GetResourceAsData(path.c_str()); |
| 132 | auto gen = SkCodecImageGenerator::MakeFromEncodedCodec(data); |
| 133 | if (!gen) { |
| 134 | ERRORF(r, "failed to decode %s", path.c_str()); |
| 135 | return; |
| 136 | } |
| 137 | |
| 138 | // Dimensions after adjusting for the origin. |
| 139 | const SkISize expectedDims = { 100, 80 }; |
| 140 | |
| 141 | // SkCodecImageGenerator automatically adjusts for the origin. |
| 142 | REPORTER_ASSERT(r, gen->getInfo().dimensions() == expectedDims); |
| 143 | |
| 144 | auto androidCodec = SkAndroidCodec::MakeFromCodec(SkCodec::MakeFromData(data)); |
| 145 | if (!androidCodec) { |
| 146 | ERRORF(r, "failed to decode %s", path.c_str()); |
| 147 | return; |
| 148 | } |
| 149 | |
| 150 | // SkAndroidCodec does not adjust for the origin by default. Dimensions may be reversed. |
| 151 | if (SkPixmapPriv::ShouldSwapWidthHeight(androidCodec->codec()->getOrigin())) { |
| 152 | auto swappedDims = SkPixmapPriv::SwapWidthHeight(androidCodec->getInfo()).dimensions(); |
| 153 | REPORTER_ASSERT(r, expectedDims == swappedDims); |
| 154 | } else { |
| 155 | REPORTER_ASSERT(r, expectedDims == androidCodec->getInfo().dimensions()); |
| 156 | } |
| 157 | |
| 158 | // Passing kRespect adjusts for the origin. |
| 159 | androidCodec = SkAndroidCodec::MakeFromCodec(SkCodec::MakeFromData(std::move(data)), |
| 160 | SkAndroidCodec::ExifOrientationBehavior::kRespect); |
| 161 | auto info = androidCodec->getInfo(); |
| 162 | REPORTER_ASSERT(r, info.dimensions() == expectedDims); |
| 163 | |
| 164 | SkBitmap fromGenerator; |
| 165 | fromGenerator.allocPixels(info); |
| 166 | REPORTER_ASSERT(r, gen->getPixels(info, fromGenerator.getPixels(), |
| 167 | fromGenerator.rowBytes())); |
| 168 | |
| 169 | SkBitmap fromAndroidCodec; |
| 170 | fromAndroidCodec.allocPixels(info); |
| 171 | auto result = androidCodec->getPixels(info, fromAndroidCodec.getPixels(), |
| 172 | fromAndroidCodec.rowBytes()); |
| 173 | REPORTER_ASSERT(r, result == SkCodec::kSuccess); |
| 174 | |
| 175 | for (int i = 0; i < info.width(); ++i) |
| 176 | for (int j = 0; j < info.height(); ++j) { |
| 177 | SkColor c1 = *fromGenerator .getAddr32(i, j); |
| 178 | SkColor c2 = *fromAndroidCodec.getAddr32(i, j); |
| 179 | if (c1 != c2) { |
| 180 | ERRORF(r, "Bitmaps for %s do not match starting at position %i, %i\n" |
| 181 | "\tfromGenerator: %x\tfromAndroidCodec: %x", path.c_str(), i, j, |
| 182 | c1, c2); |
| 183 | return; |
| 184 | } |
| 185 | } |
| 186 | } |
| 187 | } |