skia2/tests/PDFOpaqueSrcModeToSrcOverTest.cpp
Mike Klein c0bd9f9fe5 rewrite includes to not need so much -Ifoo
Current strategy: everything from the top

Things to look at first are the manual changes:

   - added tools/rewrite_includes.py
   - removed -Idirectives from BUILD.gn
   - various compile.sh simplifications
   - tweak tools/embed_resources.py
   - update gn/find_headers.py to write paths from the top
   - update gn/gn_to_bp.py SkUserConfig.h layout
     so that #include "include/config/SkUserConfig.h" always
     gets the header we want.

No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2019-04-24 16:27:11 +00:00

49 lines
1.7 KiB
C++

/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "include/core/SkCanvas.h"
#include "include/core/SkStream.h"
#include "include/docs/SkPDFDocument.h"
#include "tests/Test.h"
static void run_test(SkWStream* out, SkBlendMode mode, U8CPU alpha) {
auto pdfDoc = SkPDF::MakeDocument(out);
SkCanvas* c = pdfDoc->beginPage(612.0f, 792.0f);
SkPaint black;
SkPaint background;
background.setColor(SK_ColorWHITE);
background.setAlpha(alpha);
background.setBlendMode(mode);
c->drawRect(SkRect::MakeWH(612.0f, 792.0f), background);
c->drawRect(SkRect::MakeXYWH(36.0f, 36.0f, 9.0f, 9.0f), black);
c->drawRect(SkRect::MakeXYWH(72.0f, 72.0f, 468.0f, 648.0f), background);
c->drawRect(SkRect::MakeXYWH(108.0f, 108.0f, 9.0f, 9.0f), black);
pdfDoc->close();
}
// http://crbug.com/473572
DEF_TEST(SkPDF_OpaqueSrcModeToSrcOver, r) {
REQUIRE_PDF_DOCUMENT(SkPDF_OpaqueSrcModeToSrcOver, r);
SkDynamicMemoryWStream srcMode;
SkDynamicMemoryWStream srcOverMode;
U8CPU alpha = SK_AlphaOPAQUE;
run_test(&srcMode, SkBlendMode::kSrc, alpha);
run_test(&srcOverMode, SkBlendMode::kSrcOver, alpha);
REPORTER_ASSERT(r, srcMode.bytesWritten() == srcOverMode.bytesWritten());
// The two PDFs should be equal because they have an opaque alpha.
srcMode.reset();
srcOverMode.reset();
alpha = 0x80;
run_test(&srcMode, SkBlendMode::kSrc, alpha);
run_test(&srcOverMode, SkBlendMode::kSrcOver, alpha);
REPORTER_ASSERT(r, srcMode.bytesWritten() > srcOverMode.bytesWritten());
// The two PDFs should not be equal because they have a non-opaque alpha.
}