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/*
* Copyright 2016 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef COBALT_RENDERER_SUBMISSION_H_
#define COBALT_RENDERER_SUBMISSION_H_
#include "base/callback.h"
#include "base/debug/trace_event.h"
#include "base/memory/ref_counted.h"
#include "base/time.h"
#include "cobalt/render_tree/animations/animate_node.h"
#include "cobalt/render_tree/node.h"
namespace cobalt {
namespace renderer {
// A package of all information associated with a render tree submission.
struct Submission {
// Convenience constructor that assumes there are no animations and sets up
// an empty animation map.
explicit Submission(scoped_refptr<render_tree::Node> render_tree)
: render_tree(render_tree) {}
// Submit a render tree as well as associated animations. The
// time_offset parameter indicates a time that will be used to offset all
// times passed into animation functions.
Submission(scoped_refptr<render_tree::Node> render_tree,
base::TimeDelta time_offset)
: render_tree(render_tree), time_offset(time_offset) {}
~Submission() {
TRACE_EVENT0("cobalt::renderer", "~Submission()");
// Explicitly dereference the render tree and animation under the scope of
// the above trace event.
render_tree = NULL;
}
// Maintains the current render tree that is to be rendered next frame.
scoped_refptr<render_tree::Node> render_tree;
// The time from some origin that the associated render tree animations were
// created. This permits the render thread to compute times relative
// to the same origin when updating the animations, as well as hinting
// at the latency between animation creation and submission to render
// thread.
base::TimeDelta time_offset;
// If non-null, |on_rasterized_callback| will be called every time this
// submission is rasterized.
base::Closure on_rasterized_callback;
};
} // namespace renderer
} // namespace cobalt
#endif // COBALT_RENDERER_SUBMISSION_H_