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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef WEBGL_SYNC_H_
#define WEBGL_SYNC_H_
#include "WebGLObjectModel.h"
namespace mozilla {
namespace webgl {
class AvailabilityRunnable;
struct Task {
virtual ~Task() = default;
virtual void operator()() const = 0;
};
template <class F>
struct FnTask : public Task {
const F fn;
explicit FnTask(F&& fn) : fn(std::move(fn)) {}
virtual void operator()() const override { fn(); }
};
} // namespace webgl
enum class ClientWaitSyncResult : GLenum {
WAIT_FAILED = LOCAL_GL_WAIT_FAILED,
TIMEOUT_EXPIRED = LOCAL_GL_TIMEOUT_EXPIRED,
CONDITION_SATISFIED = LOCAL_GL_CONDITION_SATISFIED,
ALREADY_SIGNALED = LOCAL_GL_ALREADY_SIGNALED,
};
class WebGLSync final : public WebGLContextBoundObject, public SupportsWeakPtr {
friend class WebGL2Context;
friend class webgl::AvailabilityRunnable;
MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(WebGLSync, override)
const GLsync mGLName;
const uint64_t mFenceId;
bool mCanBeAvailable = false;
std::optional<std::vector<std::unique_ptr<webgl::Task>>> mOnCompleteTasks =
std::vector<std::unique_ptr<webgl::Task>>{};
public:
WebGLSync(WebGLContext* webgl, GLenum condition, GLbitfield flags);
ClientWaitSyncResult ClientWaitSync(GLbitfield flags, GLuint64 timeout);
template <class F>
void OnCompleteTaskAdd(F&& fn) {
MOZ_RELEASE_ASSERT(mOnCompleteTasks);
auto task = std::make_unique<webgl::FnTask<F>>(std::move(fn));
mOnCompleteTasks->push_back(std::move(task));
}
bool IsKnownComplete() const { return !mOnCompleteTasks; }
private:
~WebGLSync() override;
};
} // namespace mozilla
#endif // WEBGL_SYNC_H_
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