Fence.cpp

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Author : Jamie Madill
Date : 2018-11-29 18:16:17
Hash : 7c985f5c
Message : Make angle::Result an enum. This moves away from a class type to a value type. This should improve performance when using angle::Result as a return value. Previously the generated code would return a pointer instead of a value. Improves performance in the most targeted microbenchmark by 10%. In more realistic scanarios it will have a smaller improvement. Also simplifies the class implementation and usage. Includes some unrelated code generation changes. Bug: angleproject:2491 Change-Id: Ifcf86870bf1c00a2f73c39ea6e4f05ca705050aa Reviewed-on: https://chromium-review.googlesource.com/c/1356139 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>

src/libANGLE/Fence.cpp

//
// 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.cpp: Implements the gl::FenceNV and gl::Sync classes, which support the GL_NV_fence
// extension and GLES3 sync objects.

#include "libANGLE/Fence.h"

#include "angle_gl.h"

#include "common/utilities.h"
#include "libANGLE/renderer/FenceNVImpl.h"
#include "libANGLE/renderer/SyncImpl.h"

namespace gl
{

FenceNV::FenceNV(rx::FenceNVImpl *impl)
    : mFence(impl), mIsSet(false), mStatus(GL_FALSE), mCondition(GL_NONE)
{}

FenceNV::~FenceNV()
{
    SafeDelete(mFence);
}

angle::Result FenceNV::set(const Context *context, GLenum condition)
{
    ANGLE_TRY(mFence->set(context, condition));

    mCondition = condition;
    mStatus    = GL_FALSE;
    mIsSet     = true;

    return angle::Result::Continue;
}

angle::Result FenceNV::test(const Context *context, GLboolean *outResult)
{
    // Flush the command buffer by default
    ANGLE_TRY(mFence->test(context, &mStatus));

    *outResult = mStatus;
    return angle::Result::Continue;
}

angle::Result FenceNV::finish(const Context *context)
{
    ASSERT(mIsSet);

    ANGLE_TRY(mFence->finish(context));

    mStatus = GL_TRUE;

    return angle::Result::Continue;
}

Sync::Sync(rx::SyncImpl *impl, GLuint id)
    : RefCountObject(id),
      mFence(impl),
      mLabel(),
      mCondition(GL_SYNC_GPU_COMMANDS_COMPLETE),
      mFlags(0)
{}

void Sync::onDestroy(const Context *context) {}

Sync::~Sync()
{
    SafeDelete(mFence);
}

void Sync::setLabel(const Context *context, const std::string &label)
{
    mLabel = label;
}

const std::string &Sync::getLabel() const
{
    return mLabel;
}

angle::Result Sync::set(const Context *context, GLenum condition, GLbitfield flags)
{
    ANGLE_TRY(mFence->set(context, condition, flags));

    mCondition = condition;
    mFlags     = flags;
    return angle::Result::Continue;
}

angle::Result Sync::clientWait(const Context *context,
                               GLbitfield flags,
                               GLuint64 timeout,
                               GLenum *outResult)
{
    ASSERT(mCondition != GL_NONE);
    return mFence->clientWait(context, flags, timeout, outResult);
}

angle::Result Sync::serverWait(const Context *context, GLbitfield flags, GLuint64 timeout)
{
    return mFence->serverWait(context, flags, timeout);
}

angle::Result Sync::getStatus(const Context *context, GLint *outResult) const
{
    return mFence->getStatus(context, outResult);
}

}  // namespace gl

kc3-lang/angle/src/libANGLE/Fence.cpp

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kc3-lang/angle /src/libANGLE/Fence.cpp