void processTiles(const TileProcessingFunc& fun) {
auto task = [&](uint32_t threadID) {
auto loopID = 0u;
while(true) {
auto tileID = loopID * getSystemThreadCount() + threadID;
++loopID;
if(tileID >= m_Params.m_nTileCount) {
return;
}
uint32_t tileX = tileID % m_Params.m_TileCount.x;
uint32_t tileY = tileID / m_Params.m_TileCount.x;
Vec2u tileOrg = Vec2u(tileX, tileY) * m_Params.m_TileSize;
auto viewport = Vec4u(tileOrg, m_Params.m_TileSize);
if(viewport.x + viewport.z > m_Params.m_FramebufferSize.x) {
viewport.z = m_Params.m_FramebufferSize.x - viewport.x;
}
if(viewport.y + viewport.w > m_Params.m_FramebufferSize.y) {
viewport.w = m_Params.m_FramebufferSize.y - viewport.y;
}
fun(threadID, tileID, viewport);
}
};
launchThreads(task, getSystemThreadCount());
}
void benchLaunch()
{
CPerfCounter t; t.Reset();
int nl = 100;
t.Start();
for(int n = 0; n < nl; n++)
{
launchThreads();
shutdownThreads();
}
t.Stop();
std::cout << "Launch speed" << " " << t.GetElapsedTime() / nl * 1e9 << nWorkers << " ns\n";
}
