gfx/angle/src/libANGLE/Fence.h
author Chih-Yi Leu <cleu@mozilla.com>
Mon, 02 Oct 2017 10:25:08 +0800
changeset 435480 88ddf39c0d793dc508c3083515e69bfe3eb4d420
parent 326751 9e13da74808144fec94192029afad28905ba982a
child 435495 108ee2f14c2f13e1ce31a69df858ee450a1fe0ea
permissions -rw-r--r--
Bug 1371190 - Part 2: Update ANGLE to chromium/3229. r=jgilbert MozReview-Commit-ID: 5RWR2rPf5DZ

//
// Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//

// Fence.h: Defines the gl::FenceNV and gl::Sync classes, which support the GL_NV_fence
// extension and GLES3 sync objects.

#ifndef LIBANGLE_FENCE_H_
#define LIBANGLE_FENCE_H_

#include "libANGLE/Debug.h"
#include "libANGLE/Error.h"
#include "libANGLE/RefCountObject.h"

#include "common/angleutils.h"

namespace rx
{
class FenceNVImpl;
class SyncImpl;
}

namespace gl
{

class FenceNV final : angle::NonCopyable
{
  public:
    explicit FenceNV(rx::FenceNVImpl *impl);
    virtual ~FenceNV();

    Error set(GLenum condition);
    Error test(GLboolean *outResult);
    Error finish();

    bool isSet() const { return mIsSet; }
    GLboolean getStatus() const { return mStatus; }
    GLenum getCondition() const { return mCondition; }

  private:
    rx::FenceNVImpl *mFence;

    bool mIsSet;

    GLboolean mStatus;
    GLenum mCondition;
};

class Sync final : public RefCountObject, public LabeledObject
{
  public:
    Sync(rx::SyncImpl *impl, GLuint id);
    virtual ~Sync();

    Error onDestroy(const Context *context) override { return NoError(); }

    void setLabel(const std::string &label) override;
    const std::string &getLabel() const override;

    Error set(GLenum condition, GLbitfield flags);
    Error clientWait(GLbitfield flags, GLuint64 timeout, GLenum *outResult);
    Error serverWait(GLbitfield flags, GLuint64 timeout);
    Error getStatus(GLint *outResult) const;

    GLenum getCondition() const { return mCondition; }
    GLbitfield getFlags() const { return mFlags; }

  private:
    rx::SyncImpl *mFence;

    std::string mLabel;

    GLenum mCondition;
    GLbitfield mFlags;
};

}  // namespace gl

#endif   // LIBANGLE_FENCE_H_