begin_timestamp()

void MayaFlux::Portal::Graphics::ShaderFoundry::begin_timestamp	(	CommandBufferID	cmd_id,
		const std::string &	label = ""
	)

Definition at line 1243 of file ShaderFoundry.cpp.

{
    auto it = m_command_buffers.find(cmd_id);
    if (it == m_command_buffers.end()) {
        return;
    }
 
    if (!it->second.timestamp_pool) {
        vk::QueryPoolCreateInfo pool_info;
        pool_info.queryType = vk::QueryType::eTimestamp;
        pool_info.queryCount = 128;
        it->second.timestamp_pool = get_device().createQueryPool(pool_info);
    }
 
    auto query_index = static_cast<uint32_t>(it->second.timestamp_queries.size() * 2);
    it->second.timestamp_queries[label] = query_index;
 
    it->second.cmd.resetQueryPool(it->second.timestamp_pool, query_index, 2);
    it->second.cmd.writeTimestamp(vk::PipelineStageFlagBits::eTopOfPipe, it->second.timestamp_pool, query_index);
}

References get_device(), and m_command_buffers.

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