Implement software fallback for PPB_VideoDecoder.

ppapi/tests/test_video_decoder.cc

+// Copyright (c) 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ppapi/tests/test_video_decoder.h"
+
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/cpp/graphics_3d.h"
+#include "ppapi/cpp/video_decoder.h"
+#include "ppapi/lib/gl/gles2/gl2ext_ppapi.h"
+#include "ppapi/tests/testing_instance.h"
+
+REGISTER_TEST_CASE(VideoDecoder);
+
+static const bool kAllowSoftwareFallback = true;
+
+bool TestVideoDecoder::Init() {
+  // Initialize GL so we can create a shareable Graphics3D resource.
+  glInitializePPAPI(pp::Module::Get()->get_browser_interface());
+
+  video_decoder_interface_ = static_cast<const PPB_VideoDecoder_0_1*>(
+      pp::Module::Get()->GetBrowserInterface(PPB_VIDEODECODER_INTERFACE_0_1));
+  return video_decoder_interface_ && CheckTestingInterface();
+}
+
+void TestVideoDecoder::RunTests(const std::string& filter) {
+  RUN_CALLBACK_TEST(TestVideoDecoder, Create, filter);
+  // TODO(bbudge) More tests when we have a way to generate test pattern video.
+}
+
+std::string TestVideoDecoder::TestCreate() {
+  // Test that Initialize fails with a bad Graphics3D resource.
+  {
+    pp::VideoDecoder video_decoder(instance_);
+    ASSERT_FALSE(video_decoder.is_null());
+
+    TestCompletionCallback callback(instance_->pp_instance(), callback_type());
+    pp::Graphics3D context;  // null context
+    callback.WaitForResult(video_decoder.Initialize(context,
+                                                    PP_VIDEOPROFILE_VP8MAIN,
+                                                    kAllowSoftwareFallback,
+                                                    callback.GetCallback()));
+    ASSERT_EQ(PP_ERROR_BADRESOURCE, callback.result());
+  }
+  // Test that Initialize fails with a bad profile enum value.
+  {
+    pp::VideoDecoder video_decoder(instance_);
+    TestCompletionCallback callback(instance_->pp_instance(), callback_type());
+    const int width = 16;
+    const int height = 16;
+    const int32_t attribs[] = {PP_GRAPHICS3DATTRIB_WIDTH, width,
+                               PP_GRAPHICS3DATTRIB_HEIGHT, height,
+                               PP_GRAPHICS3DATTRIB_NONE};
+    pp::Graphics3D context(instance_, attribs);
+    const PP_VideoProfile kInvalidProfile = static_cast<PP_VideoProfile>(-1);
+    callback.WaitForResult(video_decoder.Initialize(context,
+                                                    kInvalidProfile,
+                                                    kAllowSoftwareFallback,
+                                                    callback.GetCallback()));
+    ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result());
+  }
+  // Test that Initialize succeeds when we allow software fallback to VP8, which
+  // should always be supported.
+  {
+    pp::VideoDecoder video_decoder(instance_);
+    TestCompletionCallback callback(instance_->pp_instance(), callback_type());
+    const int width = 16;
+    const int height = 16;
+    const int32_t attribs[] = {PP_GRAPHICS3DATTRIB_WIDTH, width,
+                               PP_GRAPHICS3DATTRIB_HEIGHT, height,
+                               PP_GRAPHICS3DATTRIB_NONE};
+    pp::Graphics3D context(instance_, attribs);
+    callback.WaitForResult(video_decoder.Initialize(context,
+                                                    PP_VIDEOPROFILE_VP8MAIN,
+                                                    kAllowSoftwareFallback,
+                                                    callback.GetCallback()));
+    ASSERT_EQ(PP_OK, callback.result());
+  }
+
+  PASS();
+}