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HostDisplay: Make GL/D3D timestamp queries slightly less rubbish

This commit is contained in:
Connor McLaughlin 2022-09-03 14:55:12 +10:00 committed by refractionpcsx2
parent 800aca6f0f
commit 6e0ac7fa75
4 changed files with 18 additions and 13 deletions
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21
pcsx2/Frontend/D3D11HostDisplay.cpp
View File

@ -677,6 +677,13 @@ bool D3D11HostDisplay::BeginPresent(bool frame_skip)
return false;
}
// When using vsync, the time here seems to include the time for the buffer to become available.
// This blows our our GPU usage number considerably, so read the timestamp before the final blit
// in this configuration. It does reduce accuracy a little, but better than seeing 100% all of
// the time, when it's more like a couple of percent.
if (m_vsync_mode != VsyncMode::Off && m_gpu_timing_enabled)
PopTimestampQuery();
static constexpr std::array<float, 4> clear_color = {};
m_context->ClearRenderTargetView(m_swap_chain_rtv.get(), clear_color.data());
m_context->OMSetRenderTargets(1, m_swap_chain_rtv.addressof(), nullptr);
@ -693,14 +700,15 @@ void D3D11HostDisplay::EndPresent()
ImGui::Render();
ImGui_ImplDX11_RenderDrawData(ImGui::GetDrawData());
if (m_gpu_timing_enabled)
// See note in BeginPresent() for why it's conditional on vsync-off.
const bool vsync_on = m_vsync_mode != VsyncMode::Off;
if (!vsync_on && m_gpu_timing_enabled)
PopTimestampQuery();
const UINT vsync_rate = static_cast<UINT>(m_vsync_mode != VsyncMode::Off);
if (vsync_rate == 0 && m_using_allow_tearing)
if (!vsync_on && m_using_allow_tearing)
m_swap_chain->Present(0, DXGI_PRESENT_ALLOW_TEARING);
else
m_swap_chain->Present(vsync_rate, 0);
m_swap_chain->Present(static_cast<UINT>(vsync_on), 0);
if (m_gpu_timing_enabled)
KickTimestampQuery();
@ -772,8 +780,7 @@ void D3D11HostDisplay::PopTimestampQuery()
}
}
// delay ending the current query until we've read back some
if (m_timestamp_query_started && m_waiting_timestamp_queries < (NUM_TIMESTAMP_QUERIES - 1))
if (m_timestamp_query_started)
{
m_context->End(m_timestamp_queries[m_write_timestamp_query][2].get());
m_context->End(m_timestamp_queries[m_write_timestamp_query][0].get());
@ -785,7 +792,7 @@ void D3D11HostDisplay::PopTimestampQuery()
void D3D11HostDisplay::KickTimestampQuery()
{
if (m_timestamp_query_started || !m_timestamp_queries[0][0])
if (m_timestamp_query_started || !m_timestamp_queries[0][0] || m_waiting_timestamp_queries == NUM_TIMESTAMP_QUERIES)
return;
m_context->Begin(m_timestamp_queries[m_write_timestamp_query][0].get());

2
pcsx2/Frontend/D3D11HostDisplay.h
View File

@ -75,7 +75,7 @@ public:
protected:
static constexpr u32 DISPLAY_CONSTANT_BUFFER_SIZE = 16;
static constexpr u8 NUM_TIMESTAMP_QUERIES = 3;
static constexpr u8 NUM_TIMESTAMP_QUERIES = 5;
static AdapterAndModeList GetAdapterAndModeList(IDXGIFactory* dxgi_factory);

6
pcsx2/Frontend/OpenGLHostDisplay.cpp
View File

@ -440,7 +440,6 @@ void OpenGLHostDisplay::PopTimestampQuery()
GLint available = 0;
GetQueryObjectiv(m_timestamp_queries[m_read_timestamp_query], GL_QUERY_RESULT_AVAILABLE, &available);
pxAssert(m_read_timestamp_query != m_write_timestamp_query);
if (!available)
break;
@ -452,8 +451,7 @@ void OpenGLHostDisplay::PopTimestampQuery()
m_waiting_timestamp_queries--;
}
// delay ending the current query until we've read back some
if (m_timestamp_query_started && m_waiting_timestamp_queries < (NUM_TIMESTAMP_QUERIES - 1))
if (m_timestamp_query_started)
{
const auto EndQuery = gles ? glEndQueryEXT : glEndQuery;
EndQuery(GL_TIME_ELAPSED);
@ -466,7 +464,7 @@ void OpenGLHostDisplay::PopTimestampQuery()
void OpenGLHostDisplay::KickTimestampQuery()
{
if (m_timestamp_query_started)
if (m_timestamp_query_started || m_waiting_timestamp_queries == NUM_TIMESTAMP_QUERIES)
return;
const bool gles = m_gl_context->IsGLES();

2
pcsx2/Frontend/OpenGLHostDisplay.h
View File

@ -65,7 +65,7 @@ public:
float GetAndResetAccumulatedGPUTime() override;
protected:
static constexpr u8 NUM_TIMESTAMP_QUERIES = 3;
static constexpr u8 NUM_TIMESTAMP_QUERIES = 5;
const char* GetGLSLVersionString() const;
std::string GetGLSLVersionHeader() const;