本文整理汇总了C++中PerformanceCounter::getElapsedMillisecond方法的典型用法代码示例。如果您正苦于以下问题：C++ PerformanceCounter::getElapsedMillisecond方法的具体用法？C++ PerformanceCounter::getElapsedMillisecond怎么用？C++ PerformanceCounter::getElapsedMillisecond使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PerformanceCounter的用法示例。
在下文中一共展示了PerformanceCounter::getElapsedMillisecond方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Render
//--------------------------------------------------------------------------------------
// Render a frame
//--------------------------------------------------------------------------------------
void Render()
{
// Update our time
static float t = 0.0f;
float delta_t = 0.0f;
{
static DWORD dwTimeStart = 0;
DWORD dwTimeCur = GetTickCount();
if( dwTimeStart == 0 )
dwTimeStart = dwTimeCur;
float old_t = t;
t = ( dwTimeCur - dwTimeStart ) / 1000.0f;
delta_t = t-old_t;
}
{
sphParticle particles[32];
for(size_t i=0; i<_countof(particles); ++i) {
particles[i].position = ist::simdvec4_set(GenRand()*0.5f, GenRand()*0.5f, GenRand()*0.5f-7.5f, 1.0f);
particles[i].velocity = _mm_set1_ps(0.0f);
}
g_sphgrid.addParticles(particles, _countof(particles));
}
{
static PerformanceCounter s_timer;
static float s_prev = 0.0f;
PerformanceCounter timer;
g_sphgrid.update(1.0f);
g_pImmediateContext->UpdateSubresource( g_pCubeInstanceBuffer, 0, NULL, &g_sphgrid.particles, 0, 0 );
if(s_timer.getElapsedMillisecond() - s_prev > 1000.0f) {
char buf[128];
_snprintf(buf, _countof(buf), " SPH update: %d particles %.3fms\n", g_sphgrid.num_active_particles, timer.getElapsedMillisecond());
OutputDebugStringA(buf);
::SetWindowTextA(g_hWnd, buf);
s_prev = s_timer.getElapsedMillisecond();
}
}
{
CBChangesEveryFrame cb;
XMVECTOR eye = g_camera.getEye();
{
XMMATRIX rot = XMMatrixRotationZ(XMConvertToRadians(0.1f));
eye = XMVector4Transform(eye, rot);
}
g_camera.setEye(eye);
g_camera.updateMatrix();
XMMATRIX vp = g_camera.getViewProjectionMatrix();
cb.ViewProjection = XMMatrixTranspose( vp );
cb.CameraPos = (FLOAT*)&eye;
cb.LightPos = XMFLOAT4(10.0f, 10.0f, -10.0f, 1.0f);
cb.LightColor = XMFLOAT4(0.9f, 0.9f, 0.9f, 1.0f);
cb.MeshShininess = 200.0f;
g_pImmediateContext->UpdateSubresource( g_pCBChangesEveryFrame, 0, NULL, &cb, 0, 0 );
}
float ClearColor[4] = { 0.0f, 0.125f, 0.3f, 1.0f }; // red, green, blue, alpha
g_pImmediateContext->ClearRenderTargetView( g_pRenderTargetView, ClearColor );
g_pImmediateContext->ClearDepthStencilView( g_pDepthStencilView, D3D11_CLEAR_DEPTH, 1.0f, 0 );
{
ID3D11Buffer *buffers[] = {g_pCubeVertexBuffer, g_pCubeInstanceBuffer};
UINT strides[] = {sizeof(SimpleVertex), sizeof(sphParticle), };
UINT offsets[] = {0, 0};
g_pImmediateContext->IASetVertexBuffers( 0, ARRAYSIZE(buffers), buffers, strides, offsets );
}
g_pImmediateContext->IASetInputLayout( g_pCubeVertexLayout );
g_pImmediateContext->IASetIndexBuffer( g_pCubeIndexBuffer, DXGI_FORMAT_R16_UINT, 0 );
g_pImmediateContext->IASetPrimitiveTopology( D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST );
// Render the cube
g_pImmediateContext->VSSetShader( g_pCubeVertexShader, NULL, 0 );
g_pImmediateContext->VSSetConstantBuffers( 0, 1, &g_pCBChangesEveryFrame );
g_pImmediateContext->PSSetShader( g_pCubePixelShader, NULL, 0 );
g_pImmediateContext->PSSetConstantBuffers( 0, 1, &g_pCBChangesEveryFrame );
g_pImmediateContext->DrawIndexedInstanced( 36, (UINT)g_sphgrid.num_active_particles, 0, 0, 0 );
// Present our back buffer to our front buffer
g_pSwapChain->Present( 1, 0 ); // vsync on
//g_pSwapChain->Present( 0, 0 ); // vsync off
}