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#include "precompiled.h"
//
// Copyright (c) 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.
//
// Query11.cpp: Defines the rx::Query11 class which implements rx::QueryImpl.
#include "libGLESv2/renderer/d3d/d3d11/Query11.h"
#include "libGLESv2/renderer/d3d/d3d11/Renderer11.h"
#include "libGLESv2/renderer/d3d/d3d11/renderer11_utils.h"
#include "libGLESv2/main.h"
#if defined(__MINGW32__) // Provide undefined struct
typedef struct D3D11_QUERY_DATA_SO_STATISTICS
{
UINT64 NumPrimitivesWritten;
UINT64 PrimitivesStorageNeeded;
} D3D11_QUERY_DATA_SO_STATISTICS;
#endif
namespace rx
{
static bool checkOcclusionQuery(ID3D11DeviceContext *context, ID3D11Query *query, UINT64 *numPixels)
{
HRESULT result = context->GetData(query, numPixels, sizeof(UINT64), 0);
return (result == S_OK);
}
static bool checkStreamOutPrimitivesWritten(ID3D11DeviceContext *context, ID3D11Query *query, UINT64 *numPrimitives)
{
D3D11_QUERY_DATA_SO_STATISTICS soStats = { 0 };
HRESULT result = context->GetData(query, &soStats, sizeof(D3D11_QUERY_DATA_SO_STATISTICS), 0);
*numPrimitives = soStats.NumPrimitivesWritten;
return (result == S_OK);
}
Query11::Query11(rx::Renderer11 *renderer, GLenum type) : QueryImpl(type)
{
mRenderer = renderer;
mQuery = NULL;
}
Query11::~Query11()
{
SafeRelease(mQuery);
}
void Query11::begin()
{
if (mQuery == NULL)
{
D3D11_QUERY_DESC queryDesc;
queryDesc.Query = gl_d3d11::ConvertQueryType(getType());
queryDesc.MiscFlags = 0;
if (FAILED(mRenderer->getDevice()->CreateQuery(&queryDesc, &mQuery)))
{
return gl::error(GL_OUT_OF_MEMORY);
}
}
mRenderer->getDeviceContext()->Begin(mQuery);
}
void Query11::end()
{
ASSERT(mQuery);
mRenderer->getDeviceContext()->End(mQuery);
mStatus = GL_FALSE;
mResult = GL_FALSE;
}
GLuint Query11::getResult()
{
if (mQuery != NULL)
{
while (!testQuery())
{
Sleep(0);
// explicitly check for device loss, some drivers seem to return S_FALSE
// if the device is lost
if (mRenderer->testDeviceLost(true))
{
return gl::error(GL_OUT_OF_MEMORY, 0);
}
}
}
return mResult;
}
GLboolean Query11::isResultAvailable()
{
if (mQuery != NULL)
{
testQuery();
}
return mStatus;
}
GLboolean Query11::testQuery()
{
if (mQuery != NULL && mStatus != GL_TRUE)
{
ID3D11DeviceContext *context = mRenderer->getDeviceContext();
bool queryFinished = false;
switch (getType())
{
case GL_ANY_SAMPLES_PASSED_EXT:
case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT:
{
UINT64 numPixels = 0;
queryFinished = checkOcclusionQuery(context, mQuery, &numPixels);
if (queryFinished)
{
mResult = (numPixels > 0) ? GL_TRUE : GL_FALSE;
}
}
break;
case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
{
UINT64 numPrimitives = 0;
queryFinished = checkStreamOutPrimitivesWritten(context, mQuery, &numPrimitives);
if (queryFinished)
{
mResult = static_cast<GLuint>(numPrimitives);
}
}
break;
default:
UNREACHABLE();
break;
}
if (queryFinished)
{
mStatus = GL_TRUE;
}
else if (mRenderer->testDeviceLost(true))
{
return gl::error(GL_OUT_OF_MEMORY, GL_TRUE);
}
return mStatus;
}
return GL_TRUE; // prevent blocking when query is null
}
bool Query11::isStarted() const
{
return (mQuery != NULL);
}
}
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