halcanary | a681433 | 2015-05-27 08:53:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 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 | #include "SkCanvas.h" |
| 8 | #include "SkDocument.h" |
| 9 | #include "SkStream.h" |
| 10 | #include "Test.h" |
| 11 | |
| 12 | static void run_test(SkWStream* out, SkXfermode::Mode mode, U8CPU alpha) { |
halcanary | 4b65666 | 2016-04-27 07:45:18 -0700 | [diff] [blame^] | 13 | sk_sp<SkDocument> pdfDoc(SkDocument::MakePDF(out)); |
halcanary | a681433 | 2015-05-27 08:53:36 -0700 | [diff] [blame] | 14 | SkCanvas* c = pdfDoc->beginPage(612.0f, 792.0f); |
| 15 | SkPaint black; |
| 16 | SkPaint background; |
| 17 | background.setColor(SK_ColorWHITE); |
| 18 | background.setAlpha(alpha); |
| 19 | background.setXfermodeMode(mode); |
| 20 | c->drawRect(SkRect::MakeWH(612.0f, 792.0f), background); |
| 21 | c->drawRect(SkRect::MakeXYWH(36.0f, 36.0f, 9.0f, 9.0f), black); |
| 22 | c->drawRect(SkRect::MakeXYWH(72.0f, 72.0f, 468.0f, 648.0f), background); |
| 23 | c->drawRect(SkRect::MakeXYWH(108.0f, 108.0f, 9.0f, 9.0f), black); |
| 24 | pdfDoc->close(); |
| 25 | } |
| 26 | |
| 27 | // http://crbug.com/473572 |
| 28 | DEF_TEST(SkPDF_OpaqueSrcModeToSrcOver, r) { |
halcanary | 2ccdb63 | 2015-08-11 13:35:12 -0700 | [diff] [blame] | 29 | REQUIRE_PDF_DOCUMENT(SkPDF_OpaqueSrcModeToSrcOver, r); |
halcanary | a681433 | 2015-05-27 08:53:36 -0700 | [diff] [blame] | 30 | SkDynamicMemoryWStream srcMode; |
| 31 | SkDynamicMemoryWStream srcOverMode; |
| 32 | |
| 33 | U8CPU alpha = SK_AlphaOPAQUE; |
| 34 | run_test(&srcMode, SkXfermode::kSrc_Mode, alpha); |
| 35 | run_test(&srcOverMode, SkXfermode::kSrcOver_Mode, alpha); |
| 36 | REPORTER_ASSERT(r, srcMode.getOffset() == srcOverMode.getOffset()); |
| 37 | // The two PDFs should be equal because they have an opaque alpha. |
| 38 | |
| 39 | srcMode.reset(); |
| 40 | srcOverMode.reset(); |
| 41 | |
| 42 | alpha = 0x80; |
| 43 | run_test(&srcMode, SkXfermode::kSrc_Mode, alpha); |
| 44 | run_test(&srcOverMode, SkXfermode::kSrcOver_Mode, alpha); |
| 45 | REPORTER_ASSERT(r, srcMode.getOffset() > srcOverMode.getOffset()); |
| 46 | // The two PDFs should not be equal because they have a non-opaque alpha. |
| 47 | } |