Add the method isOpaque() to SkImage
BUG=skia:2766
R=junov@chromium.org, halcanary@google.com, scroggo@google.com, reed@google.com, bsalomon@google.com
Author: piotaixr@chromium.org
Review URL: https://codereview.chromium.org/406673003
diff --git a/tests/ImageIsOpaqueTest.cpp b/tests/ImageIsOpaqueTest.cpp
new file mode 100644
index 0000000..902e24d
--- /dev/null
+++ b/tests/ImageIsOpaqueTest.cpp
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkTypes.h"
+#if SK_SUPPORT_GPU
+#include "GrContextFactory.h"
+#endif
+#include "SkImage.h"
+#include "SkSurface.h"
+
+#include "Test.h"
+
+DEF_TEST(ImageIsOpaqueTest, reporter) {
+ SkImageInfo infoTransparent = SkImageInfo::MakeN32Premul(5, 5);
+ SkAutoTUnref<SkSurface> surfaceTransparent(SkSurface::NewRaster(infoTransparent));
+ REPORTER_ASSERT(reporter, !surfaceTransparent->newImageSnapshot()->isOpaque());
+
+ SkImageInfo infoOpaque = SkImageInfo::MakeN32(5, 5, kOpaque_SkAlphaType);
+ SkAutoTUnref<SkSurface> surfaceOpaque(SkSurface::NewRaster(infoOpaque));
+ REPORTER_ASSERT(reporter, surfaceOpaque->newImageSnapshot()->isOpaque());
+}
+
+#if SK_SUPPORT_GPU
+
+DEF_GPUTEST(ImageIsOpaqueTest_GPU, reporter, factory) {
+ for (int i = 0; i < GrContextFactory::kGLContextTypeCnt; ++i) {
+ GrContextFactory::GLContextType glCtxType = (GrContextFactory::GLContextType) i;
+
+ if (!GrContextFactory::IsRenderingGLContext(glCtxType)) {
+ continue;
+ }
+
+ GrContext* context = factory->get(glCtxType);
+
+ if (NULL == context) {
+ continue;
+ }
+
+ SkImageInfo infoTransparent = SkImageInfo::MakeN32Premul(5, 5);
+ SkAutoTUnref<SkSurface> surfaceTransparent(SkSurface::NewRenderTarget(context, infoTransparent));
+ REPORTER_ASSERT(reporter, !surfaceTransparent->newImageSnapshot()->isOpaque());
+
+ SkImageInfo infoOpaque = SkImageInfo::MakeN32(5, 5, kOpaque_SkAlphaType);
+ SkAutoTUnref<SkSurface> surfaceOpaque(SkSurface::NewRenderTarget(context, infoOpaque));
+ REPORTER_ASSERT(reporter, !surfaceOpaque->newImageSnapshot()->isOpaque());
+
+ }
+}
+
+#endif