void PerfQuery::EnableQuery(PerfQueryGroup type)
{
// Have we used half of the query buffer already?
if (m_query_count > m_query_buffer.size() / 2)
NonBlockingPartialFlush();
// Block if there are no free slots.
if (m_query_count == PERF_QUERY_BUFFER_SIZE)
{
// ERROR_LOG(VIDEO, "Flushed query buffer early!");
BlockingPartialFlush();
}
if (type == PQG_ZCOMP_ZCOMPLOC || type == PQG_ZCOMP)
{
u32 index = (m_query_read_pos + m_query_count) % PERF_QUERY_BUFFER_SIZE;
ActiveQuery& entry = m_query_buffer[index];
ASSERT(!entry.active && !entry.available);
entry.active = true;
m_query_count++;
DEBUG_LOG(VIDEO, "start query %u", index);
// Use precise queries if supported, otherwise boolean (which will be incorrect).
VkQueryControlFlags flags = 0;
if (g_vulkan_context->SupportsPreciseOcclusionQueries())
flags = VK_QUERY_CONTROL_PRECISE_BIT;
// Ensure the query starts within a render pass.
// TODO: Is this needed?
StateTracker::GetInstance()->BeginRenderPass();
vkCmdBeginQuery(g_command_buffer_mgr->GetCurrentCommandBuffer(), m_query_pool, index, flags);
}
}
void PerfQuery::FlushResults()
{
while (!IsFlushed())
BlockingPartialFlush();
}
