QueryVk.cpp

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Author : Stuart Morgan
Date : 2019-08-14 12:25:12
Hash : 9d737966
Message : Standardize copyright notices to project style For all "ANGLE Project" copyrights, standardize to the format specified by the style guide. Changes: - "Copyright (c)" and "Copyright(c)" changed to just "Copyright". - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1"). - Fixed a small number of files that had no copyright date using the initial commit year from the version control history. - Fixed one instance of copyright being "The ANGLE Project" rather than "The ANGLE Project Authors" These changes are applied both to the copyright of source file, and where applicable to copyright statements that are generated by templates. BUG=angleproject:3811 Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>

src/libANGLE/renderer/vulkan/QueryVk.cpp

//
// Copyright 2016 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.
//
// QueryVk.cpp:
//    Implements the class methods for QueryVk.
//

#include "libANGLE/renderer/vulkan/QueryVk.h"
#include "libANGLE/Context.h"
#include "libANGLE/TransformFeedback.h"
#include "libANGLE/renderer/vulkan/ContextVk.h"
#include "libANGLE/renderer/vulkan/RendererVk.h"
#include "libANGLE/renderer/vulkan/TransformFeedbackVk.h"

#include "common/debug.h"

namespace rx
{

QueryVk::QueryVk(gl::QueryType type)
    : QueryImpl(type),
      mTransformFeedbackPrimitivesDrawn(0),
      mCachedResult(0),
      mCachedResultValid(false)
{}

QueryVk::~QueryVk() = default;

void QueryVk::onDestroy(const gl::Context *context)
{
    ContextVk *contextVk = vk::GetImpl(context);
    if (getType() != gl::QueryType::TransformFeedbackPrimitivesWritten)
    {
        vk::DynamicQueryPool *queryPool = contextVk->getQueryPool(getType());
        queryPool->freeQuery(contextVk, &mQueryHelper);
        queryPool->freeQuery(contextVk, &mQueryHelperTimeElapsedBegin);
    }
}

angle::Result QueryVk::begin(const gl::Context *context)
{
    ContextVk *contextVk = vk::GetImpl(context);

    mCachedResultValid = false;

    // Transform feedback query is a handled by a CPU-calculated value when emulated.
    if (getType() == gl::QueryType::TransformFeedbackPrimitivesWritten)
    {
        mTransformFeedbackPrimitivesDrawn = 0;
        contextVk->getCommandGraph()->beginTransformFeedbackEmulatedQuery();
        return angle::Result::Continue;
    }

    if (!mQueryHelper.getQueryPool())
    {
        ANGLE_TRY(contextVk->getQueryPool(getType())->allocateQuery(contextVk, &mQueryHelper));
    }

    // Note: TimeElapsed is implemented by using two Timestamp queries and taking the diff.
    if (getType() == gl::QueryType::TimeElapsed)
    {
        if (!mQueryHelperTimeElapsedBegin.getQueryPool())
        {
            ANGLE_TRY(contextVk->getQueryPool(getType())->allocateQuery(
                contextVk, &mQueryHelperTimeElapsedBegin));
        }

        mQueryHelperTimeElapsedBegin.writeTimestamp(contextVk);
    }
    else
    {
        mQueryHelper.beginQuery(contextVk);
    }

    return angle::Result::Continue;
}

angle::Result QueryVk::end(const gl::Context *context)
{
    ContextVk *contextVk = vk::GetImpl(context);

    if (getType() == gl::QueryType::TransformFeedbackPrimitivesWritten)
    {
        mCachedResult = mTransformFeedbackPrimitivesDrawn;

        // There could be transform feedback in progress, so add the primitives drawn so far from
        // the current transform feedback object.
        gl::TransformFeedback *transformFeedback =
            context->getState().getCurrentTransformFeedback();
        if (transformFeedback)
        {
            mCachedResult += transformFeedback->getPrimitivesDrawn();
        }
        mCachedResultValid = true;
        contextVk->getCommandGraph()->endTransformFeedbackEmulatedQuery();
    }
    else if (getType() == gl::QueryType::TimeElapsed)
    {
        mQueryHelper.writeTimestamp(contextVk);
    }
    else
    {
        mQueryHelper.endQuery(contextVk);
    }

    return angle::Result::Continue;
}

angle::Result QueryVk::queryCounter(const gl::Context *context)
{
    ContextVk *contextVk = vk::GetImpl(context);

    mCachedResultValid = false;

    if (!mQueryHelper.getQueryPool())
    {
        ANGLE_TRY(contextVk->getQueryPool(getType())->allocateQuery(contextVk, &mQueryHelper));
    }

    ASSERT(getType() == gl::QueryType::Timestamp);

    mQueryHelper.writeTimestamp(contextVk);

    return angle::Result::Continue;
}

angle::Result QueryVk::getResult(const gl::Context *context, bool wait)
{
    if (mCachedResultValid)
    {
        return angle::Result::Continue;
    }

    ContextVk *contextVk = vk::GetImpl(context);
    RendererVk *renderer = contextVk->getRenderer();

    // glGetQueryObject* requires an implicit flush of the command buffers to guarantee execution in
    // finite time.
    // Note regarding time-elapsed: end should have been called after begin, so flushing when end
    // has pending work should flush begin too.
    if (mQueryHelper.hasPendingWork(contextVk))
    {
        ANGLE_TRY(contextVk->flushImpl(nullptr));

        ASSERT(!mQueryHelperTimeElapsedBegin.hasPendingWork(contextVk));
        ASSERT(!mQueryHelper.hasPendingWork(contextVk));
    }

    // If the command buffer this query is being written to is still in flight, its reset command
    // may not have been performed by the GPU yet.  To avoid a race condition in this case, wait
    // for the batch to finish first before querying (or return not-ready if not waiting).
    ANGLE_TRY(contextVk->checkCompletedCommands());
    if (contextVk->isSerialInUse(mQueryHelper.getStoredQueueSerial()))
    {
        if (!wait)
        {
            return angle::Result::Continue;
        }
        ANGLE_TRY(contextVk->finishToSerial(mQueryHelper.getStoredQueueSerial()));
    }

    VkQueryResultFlags flags = (wait ? VK_QUERY_RESULT_WAIT_BIT : 0) | VK_QUERY_RESULT_64_BIT;

    VkResult result = mQueryHelper.getQueryPool()->getResults(
        contextVk->getDevice(), mQueryHelper.getQuery(), 1, sizeof(mCachedResult), &mCachedResult,
        sizeof(mCachedResult), flags);
    // If the results are not ready, do nothing.  mCachedResultValid remains false.
    if (result == VK_NOT_READY)
    {
        // If VK_QUERY_RESULT_WAIT_BIT was given, VK_NOT_READY cannot have been returned.
        ASSERT(!wait);
        return angle::Result::Continue;
    }
    ANGLE_VK_TRY(contextVk, result);

    double timestampPeriod = renderer->getPhysicalDeviceProperties().limits.timestampPeriod;

    // Fix up the results to what OpenGL expects.
    switch (getType())
    {
        case gl::QueryType::AnySamples:
        case gl::QueryType::AnySamplesConservative:
            // OpenGL query result in these cases is binary
            mCachedResult = !!mCachedResult;
            break;
        case gl::QueryType::Timestamp:
            mCachedResult = static_cast<uint64_t>(mCachedResult * timestampPeriod);
            break;
        case gl::QueryType::TimeElapsed:
        {
            uint64_t timeElapsedEnd = mCachedResult;

            result = mQueryHelperTimeElapsedBegin.getQueryPool()->getResults(
                contextVk->getDevice(), mQueryHelperTimeElapsedBegin.getQuery(), 1,
                sizeof(mCachedResult), &mCachedResult, sizeof(mCachedResult), flags);
            // Since the result of the end query of time-elapsed is already available, the
            // result of begin query must be available too.
            ASSERT(result != VK_NOT_READY);
            ANGLE_VK_TRY(contextVk, result);

            mCachedResult = timeElapsedEnd - mCachedResult;
            mCachedResult = static_cast<uint64_t>(mCachedResult * timestampPeriod);

            break;
        }
        default:
            UNREACHABLE();
            break;
    }

    mCachedResultValid = true;
    return angle::Result::Continue;
}
angle::Result QueryVk::getResult(const gl::Context *context, GLint *params)
{
    ANGLE_TRY(getResult(context, true));
    *params = static_cast<GLint>(mCachedResult);
    return angle::Result::Continue;
}

angle::Result QueryVk::getResult(const gl::Context *context, GLuint *params)
{
    ANGLE_TRY(getResult(context, true));
    *params = static_cast<GLuint>(mCachedResult);
    return angle::Result::Continue;
}

angle::Result QueryVk::getResult(const gl::Context *context, GLint64 *params)
{
    ANGLE_TRY(getResult(context, true));
    *params = static_cast<GLint64>(mCachedResult);
    return angle::Result::Continue;
}

angle::Result QueryVk::getResult(const gl::Context *context, GLuint64 *params)
{
    ANGLE_TRY(getResult(context, true));
    *params = mCachedResult;
    return angle::Result::Continue;
}

angle::Result QueryVk::isResultAvailable(const gl::Context *context, bool *available)
{
    ANGLE_TRY(getResult(context, false));
    *available = mCachedResultValid;

    return angle::Result::Continue;
}

void QueryVk::onTransformFeedbackEnd(const gl::Context *context)
{
    gl::TransformFeedback *transformFeedback = context->getState().getCurrentTransformFeedback();
    ASSERT(transformFeedback);

    mTransformFeedbackPrimitivesDrawn += transformFeedback->getPrimitivesDrawn();
}

}  // namespace rx

kc3-lang/angle/src/libANGLE/renderer/vulkan/QueryVk.cpp

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kc3-lang/angle /src/libANGLE/renderer/vulkan/QueryVk.cpp