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Unified Diff: tests/skpdf_opaquesrcmodetosrcover.cpp

Issue 1159763004: SkPDF: with opaque draws, treat SRC mode as SRC_OVER (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: 2015-05-26 (Tuesday) 12:06:19 EDT Created 5 years, 7 months ago
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Index: tests/skpdf_opaquesrcmodetosrcover.cpp
diff --git a/tests/skpdf_opaquesrcmodetosrcover.cpp b/tests/skpdf_opaquesrcmodetosrcover.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..e5685d9085f2514c629e3e12e2df6173976736d3
--- /dev/null
+++ b/tests/skpdf_opaquesrcmodetosrcover.cpp
@@ -0,0 +1,38 @@
+/*
+ * 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 "SkCanvas.h"
+#include "SkDocument.h"
+#include "SkStream.h"
+#include "Test.h"
+
+static void run_test(SkWStream* out, SkXfermode::Mode mode, SkColor color) {
+ SkAutoTUnref<SkDocument> pdfDoc(SkDocument::CreatePDF(out));
+ SkCanvas* c = pdfDoc->beginPage(612.0f, 792.0f);
+ SkPaint black;
+ SkPaint background;
+ background.setColor(color);
+ background.setXfermodeMode(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();
+}
+DEF_TEST(SkPDF_OpaqueSrcModeToSrcOver, r) {
+ SkDynamicMemoryWStream srcMode;
+ run_test(&srcMode, SkXfermode::kSrc_Mode, SK_ColorWHITE);
+ SkDynamicMemoryWStream srcOverMode;
+ run_test(&srcOverMode, SkXfermode::kSrcOver_Mode, SK_ColorWHITE);
+ REPORTER_ASSERT(r, srcMode.getOffset() == srcOverMode.getOffset());
+
+ srcMode.reset();
+ SkColor color = 0x80FFFFFF;
+ run_test(&srcMode, SkXfermode::kSrc_Mode, color);
+ srcOverMode.reset();
+ run_test(&srcOverMode, SkXfermode::kSrcOver_Mode, color);
+ REPORTER_ASSERT(r, srcMode.getOffset() > srcOverMode.getOffset());
+}
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