epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011 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 | */ |
tfarina@chromium.org | e4fafb1 | 2013-12-12 21:11:12 +0000 | [diff] [blame] | 7 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 8 | #include "include/core/SkBlendMode.h" |
| 9 | #include "include/core/SkColor.h" |
| 10 | #include "include/core/SkColorFilter.h" |
Mike Klein | 6bba1bc | 2021-02-16 11:59:00 -0600 | [diff] [blame] | 11 | #include "include/core/SkColorSpace.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 12 | #include "include/core/SkRefCnt.h" |
| 13 | #include "include/core/SkTypes.h" |
Mike Klein | 6bba1bc | 2021-02-16 11:59:00 -0600 | [diff] [blame] | 14 | #include "include/effects/SkColorMatrix.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 15 | #include "include/utils/SkRandom.h" |
| 16 | #include "src/core/SkAutoMalloc.h" |
| 17 | #include "src/core/SkReadBuffer.h" |
| 18 | #include "src/core/SkWriteBuffer.h" |
| 19 | #include "tests/Test.h" |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 20 | |
Ben Wagner | eed6128 | 2018-04-17 14:14:51 -0400 | [diff] [blame] | 21 | class SkFlattenable; |
| 22 | |
reed | d053ce9 | 2016-03-22 10:17:23 -0700 | [diff] [blame] | 23 | static sk_sp<SkColorFilter> reincarnate_colorfilter(SkFlattenable* obj) { |
brianosman | fad9856 | 2016-05-04 11:06:28 -0700 | [diff] [blame] | 24 | SkBinaryWriteBuffer wb; |
djsollen@google.com | cefc865 | 2012-03-26 15:52:10 +0000 | [diff] [blame] | 25 | wb.writeFlattenable(obj); |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 26 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 27 | size_t size = wb.bytesWritten(); |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 28 | SkAutoSMalloc<1024> storage(size); |
| 29 | // make a copy into storage |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 30 | wb.writeToMemory(storage.get()); |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 31 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 32 | SkReadBuffer rb(storage.get(), size); |
reed@google.com | 3534822 | 2013-10-16 13:05:06 +0000 | [diff] [blame] | 33 | return rb.readColorFilter(); |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 34 | } |
| 35 | |
| 36 | /////////////////////////////////////////////////////////////////////////////// |
| 37 | |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 38 | #define ILLEGAL_MODE ((SkBlendMode)-1) |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 39 | |
tfarina@chromium.org | e4fafb1 | 2013-12-12 21:11:12 +0000 | [diff] [blame] | 40 | DEF_TEST(ColorFilter, reporter) { |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 41 | SkRandom rand; |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 42 | |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 43 | for (int mode = 0; mode <= (int)SkBlendMode::kLastMode; mode++) { |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 44 | SkColor color = rand.nextU(); |
| 45 | |
| 46 | // ensure we always get a filter, by avoiding the possibility of a |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 47 | // special case that would return nullptr (if color's alpha is 0 or 0xFF) |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 48 | color = SkColorSetA(color, 0x7F); |
| 49 | |
Mike Reed | b286bc2 | 2019-04-08 16:23:20 -0400 | [diff] [blame] | 50 | auto cf = SkColorFilters::Blend(color, (SkBlendMode)mode); |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 51 | |
| 52 | // allow for no filter if we're in Dst mode (its a no op) |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 53 | if (SkBlendMode::kDst == (SkBlendMode)mode && nullptr == cf) { |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 54 | continue; |
| 55 | } |
| 56 | |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 57 | REPORTER_ASSERT(reporter, cf); |
| 58 | |
| 59 | SkColor c = ~color; |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 60 | SkBlendMode m = ILLEGAL_MODE; |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 61 | |
| 62 | SkColor expectedColor = color; |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 63 | SkBlendMode expectedMode = (SkBlendMode)mode; |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 64 | |
| 65 | // SkDebugf("--- mc [%d %x] ", mode, color); |
| 66 | |
Mike Reed | 4e1b07e | 2019-04-25 21:04:49 -0400 | [diff] [blame] | 67 | REPORTER_ASSERT(reporter, cf->asAColorMode(&c, (SkBlendMode*)&m)); |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 68 | // handle special-case folding by the factory |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 69 | if (SkBlendMode::kClear == (SkBlendMode)mode) { |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 70 | if (c != expectedColor) { |
| 71 | expectedColor = 0; |
| 72 | } |
| 73 | if (m != expectedMode) { |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 74 | expectedMode = SkBlendMode::kSrc; |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 75 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 76 | } |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 77 | |
| 78 | // SkDebugf("--- got [%d %x] expected [%d %x]\n", m, c, expectedMode, expectedColor); |
| 79 | |
| 80 | REPORTER_ASSERT(reporter, c == expectedColor); |
| 81 | REPORTER_ASSERT(reporter, m == expectedMode); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 82 | |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 83 | { |
reed | d053ce9 | 2016-03-22 10:17:23 -0700 | [diff] [blame] | 84 | auto cf2 = reincarnate_colorfilter(cf.get()); |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 85 | REPORTER_ASSERT(reporter, cf2); |
| 86 | |
| 87 | SkColor c2 = ~color; |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 88 | SkBlendMode m2 = ILLEGAL_MODE; |
Mike Reed | 4e1b07e | 2019-04-25 21:04:49 -0400 | [diff] [blame] | 89 | REPORTER_ASSERT(reporter, cf2->asAColorMode(&c2, (SkBlendMode*)&m2)); |
reed@google.com | 43c50c8 | 2011-04-14 15:50:52 +0000 | [diff] [blame] | 90 | REPORTER_ASSERT(reporter, c2 == expectedColor); |
| 91 | REPORTER_ASSERT(reporter, m2 == expectedMode); |
| 92 | } |
| 93 | } |
| 94 | } |
Mike Klein | 6bba1bc | 2021-02-16 11:59:00 -0600 | [diff] [blame] | 95 | |
| 96 | DEF_TEST(WorkingFormatFilterFlags, r) { |
| 97 | { |
| 98 | // A matrix with final row 0,0,0,1,0 shouldn't change alpha. |
| 99 | sk_sp<SkColorFilter> cf = SkColorFilters::Matrix({1,0,0,0,0, |
| 100 | 0,1,0,0,0, |
| 101 | 0,0,1,0,0, |
| 102 | 0,0,0,1,0}); |
| 103 | REPORTER_ASSERT(r, cf->isAlphaUnchanged()); |
| 104 | |
| 105 | // No working format change will itself change alpha. |
| 106 | SkAlphaType unpremul = kUnpremul_SkAlphaType; |
| 107 | cf = SkColorFilters::WithWorkingFormat(std::move(cf), |
| 108 | &SkNamedTransferFn::kLinear, |
| 109 | &SkNamedGamut::kDisplayP3, |
| 110 | &unpremul); |
| 111 | REPORTER_ASSERT(r, cf->isAlphaUnchanged()); |
| 112 | } |
| 113 | |
| 114 | { |
| 115 | // Here's a matrix that definitely does change alpha. |
| 116 | sk_sp<SkColorFilter> cf = SkColorFilters::Matrix({1,0,0,0,0, |
| 117 | 0,1,0,0,0, |
| 118 | 0,0,1,0,0, |
| 119 | 0,0,0,0,1}); |
| 120 | REPORTER_ASSERT(r, !cf->isAlphaUnchanged()); |
| 121 | |
| 122 | SkAlphaType unpremul = kUnpremul_SkAlphaType; |
| 123 | cf = SkColorFilters::WithWorkingFormat(std::move(cf), |
| 124 | &SkNamedTransferFn::kLinear, |
| 125 | &SkNamedGamut::kDisplayP3, |
| 126 | &unpremul); |
| 127 | REPORTER_ASSERT(r, !cf->isAlphaUnchanged()); |
| 128 | } |
| 129 | } |