SkPDF: clean up overuse of SK_SUPPORT_PDF
When possible use run-time checks (via SkDocument::CreatePDF)
When PDF is disabled, do not compile tests/PDF*.cpp
Review URL: https://codereview.chromium.org/1278403006
diff --git a/tests/PDFOpaqueSrcModeToSrcOverTest.cpp b/tests/PDFOpaqueSrcModeToSrcOverTest.cpp
new file mode 100644
index 0000000..156856c
--- /dev/null
+++ b/tests/PDFOpaqueSrcModeToSrcOverTest.cpp
@@ -0,0 +1,47 @@
+/*
+ * 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, U8CPU alpha) {
+ SkAutoTUnref<SkDocument> pdfDoc(SkDocument::CreatePDF(out));
+ SkCanvas* c = pdfDoc->beginPage(612.0f, 792.0f);
+ SkPaint black;
+ SkPaint background;
+ background.setColor(SK_ColorWHITE);
+ background.setAlpha(alpha);
+ 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();
+}
+
+// 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, SkXfermode::kSrc_Mode, alpha);
+ run_test(&srcOverMode, SkXfermode::kSrcOver_Mode, alpha);
+ REPORTER_ASSERT(r, srcMode.getOffset() == srcOverMode.getOffset());
+ // The two PDFs should be equal because they have an opaque alpha.
+
+ srcMode.reset();
+ srcOverMode.reset();
+
+ alpha = 0x80;
+ run_test(&srcMode, SkXfermode::kSrc_Mode, alpha);
+ run_test(&srcOverMode, SkXfermode::kSrcOver_Mode, alpha);
+ REPORTER_ASSERT(r, srcMode.getOffset() > srcOverMode.getOffset());
+ // The two PDFs should not be equal because they have a non-opaque alpha.
+}