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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#include "DolphinWX/GLInterface/GLInterface.h"
#include "VideoBackends/OGL/GLUtil.h"
#include "VideoBackends/OGL/PerfQuery.h"
#include "VideoCommon/RenderBase.h"
namespace OGL
{
PerfQuery::PerfQuery()
: m_query_read_pos()
, m_query_count()
{
for (ActiveQuery& query : m_query_buffer)
glGenQueries(1, &query.query_id);
ResetQuery();
}
PerfQuery::~PerfQuery()
{
for (ActiveQuery& query : m_query_buffer)
glDeleteQueries(1, &query.query_id);
}
void PerfQuery::EnableQuery(PerfQueryGroup type)
{
// Is this sane?
if (m_query_count > m_query_buffer.size() / 2)
WeakFlush();
if (m_query_buffer.size() == m_query_count)
{
FlushOne();
//ERROR_LOG(VIDEO, "Flushed query buffer early!");
}
// start query
if (type == PQG_ZCOMP_ZCOMPLOC || type == PQG_ZCOMP)
{
auto& entry = m_query_buffer[(m_query_read_pos + m_query_count) % m_query_buffer.size()];
glBeginQuery(GLInterface->GetMode() == GLInterfaceMode::MODE_OPENGL ? GL_SAMPLES_PASSED : GL_ANY_SAMPLES_PASSED, entry.query_id);
entry.query_type = type;
++m_query_count;
}
}
void PerfQuery::DisableQuery(PerfQueryGroup type)
{
// stop query
if (type == PQG_ZCOMP_ZCOMPLOC || type == PQG_ZCOMP)
{
glEndQuery(GLInterface->GetMode() == GLInterfaceMode::MODE_OPENGL ? GL_SAMPLES_PASSED : GL_ANY_SAMPLES_PASSED);
}
}
bool PerfQuery::IsFlushed() const
{
return 0 == m_query_count;
}
void PerfQuery::FlushOne()
{
auto& entry = m_query_buffer[m_query_read_pos];
GLuint result = 0;
glGetQueryObjectuiv(entry.query_id, GL_QUERY_RESULT, &result);
// NOTE: Reported pixel metrics should be referenced to native resolution
m_results[entry.query_type] += (u64)result * EFB_WIDTH / g_renderer->GetTargetWidth() * EFB_HEIGHT / g_renderer->GetTargetHeight();
m_query_read_pos = (m_query_read_pos + 1) % m_query_buffer.size();
--m_query_count;
}
// TODO: could selectively flush things, but I don't think that will do much
void PerfQuery::FlushResults()
{
while (!IsFlushed())
FlushOne();
}
void PerfQuery::WeakFlush()
{
while (!IsFlushed())
{
auto& entry = m_query_buffer[m_query_read_pos];
GLuint result = GL_FALSE;
glGetQueryObjectuiv(entry.query_id, GL_QUERY_RESULT_AVAILABLE, &result);
if (GL_TRUE == result)
{
FlushOne();
}
else
{
break;
}
}
}
void PerfQuery::ResetQuery()
{
m_query_count = 0;
std::fill_n(m_results, ArraySize(m_results), 0);
}
u32 PerfQuery::GetQueryResult(PerfQueryType type)
{
u32 result = 0;
if (type == PQ_ZCOMP_INPUT_ZCOMPLOC || type == PQ_ZCOMP_OUTPUT_ZCOMPLOC)
{
result = m_results[PQG_ZCOMP_ZCOMPLOC];
}
else if (type == PQ_ZCOMP_INPUT || type == PQ_ZCOMP_OUTPUT)
{
result = m_results[PQG_ZCOMP];
}
else if (type == PQ_BLEND_INPUT)
{
result = m_results[PQG_ZCOMP] + m_results[PQG_ZCOMP_ZCOMPLOC];
}
else if (type == PQ_EFB_COPY_CLOCKS)
{
result = m_results[PQG_EFB_COPY_CLOCKS];
}
return result / 4;
}
} // namespace
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