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D3D11: Check for GPU timer support.

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This commit is contained in:
Branimir Karadžić 2016-03-05 22:55:50 -08:00
parent 35a30c3135
commit c1642d46d1
1 changed files with 26 additions and 10 deletions
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36
src/renderer_d3d11.cpp
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@ -599,6 +599,7 @@ namespace bgfx { namespace d3d11
, m_vsChanges(0)
, m_fsChanges(0)
, m_rtMsaa(false)
, m_timerQuerySupport(false)
, m_ovrRtv(NULL)
, m_ovrDsv(NULL)
{
@ -1193,6 +1194,8 @@ BX_PRAGMA_DIAGNOSTIC_POP();
| BGFX_CAPS_OCCLUSION_QUERY
);
m_timerQuerySupport = m_featureLevel >= D3D_FEATURE_LEVEL_9_3;
if (m_featureLevel <= D3D_FEATURE_LEVEL_9_2)
{
g_caps.maxTextureSize = D3D_FL9_1_REQ_TEXTURE2D_U_OR_V_DIMENSION;
@ -2021,7 +2024,10 @@ BX_PRAGMA_DIAGNOSTIC_POP();
{
ovrPreReset();
m_gpuTimer.preReset();
if (m_timerQuerySupport)
{
m_gpuTimer.preReset();
}
m_occlusionQuery.preReset();
if (NULL == g_platformData.backBufferDS)
@ -2066,7 +2072,10 @@ BX_PRAGMA_DIAGNOSTIC_POP();
DX_RELEASE(color, 0);
}
m_gpuTimer.postReset();
if (m_timerQuerySupport)
{
m_gpuTimer.postReset();
}
m_occlusionQuery.postReset();
ovrPostReset();
@ -3434,6 +3443,7 @@ BX_PRAGMA_DIAGNOSTIC_POP();
FrameBufferHandle m_fbh;
bool m_rtMsaa;
bool m_timerQuerySupport;
OVR m_ovr;
TextureD3D11 m_ovrRT;
@ -4726,7 +4736,10 @@ BX_PRAGMA_DIAGNOSTIC_POP();
int64_t elapsed = -bx::getHPCounter();
int64_t captureElapsed = 0;
m_gpuTimer.begin();
if (m_timerQuerySupport)
{
m_gpuTimer.begin();
}
if (0 < _render->m_iboffset)
{
@ -5636,15 +5649,18 @@ BX_PRAGMA_DIAGNOSTIC_POP();
static double maxGpuElapsed = 0.0f;
double elapsedGpuMs = 0.0;
m_gpuTimer.end();
while (m_gpuTimer.get() )
if (m_timerQuerySupport)
{
double toGpuMs = 1000.0 / double(m_gpuTimer.m_frequency);
elapsedGpuMs = m_gpuTimer.m_elapsed * toGpuMs;
maxGpuElapsed = elapsedGpuMs > maxGpuElapsed ? elapsedGpuMs : maxGpuElapsed;
m_gpuTimer.end();
while (m_gpuTimer.get() )
{
double toGpuMs = 1000.0 / double(m_gpuTimer.m_frequency);
elapsedGpuMs = m_gpuTimer.m_elapsed * toGpuMs;
maxGpuElapsed = elapsedGpuMs > maxGpuElapsed ? elapsedGpuMs : maxGpuElapsed;
}
maxGpuLatency = bx::uint32_imax(maxGpuLatency, m_gpuTimer.m_control.available()-1);
}
maxGpuLatency = bx::uint32_imax(maxGpuLatency, m_gpuTimer.m_control.available()-1);
const int64_t timerFreq = bx::getHPFrequency();