diff options
Diffstat (limited to 'src/profiling/ProfilingUtils.cpp')
-rw-r--r-- | src/profiling/ProfilingUtils.cpp | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/profiling/ProfilingUtils.cpp b/src/profiling/ProfilingUtils.cpp index 23386f86f4..0f6432e091 100644 --- a/src/profiling/ProfilingUtils.cpp +++ b/src/profiling/ProfilingUtils.cpp @@ -331,6 +331,80 @@ TimelinePacketStatus WriteTimelineLabelBinaryPacket(uint64_t profilingGuid, return TimelinePacketStatus::Ok; } +TimelinePacketStatus WriteTimelineEntityBinaryPacket(uint64_t profilingGuid, + unsigned char* buffer, + unsigned int bufferSize, + unsigned int& numberOfBytesWritten) +{ + // Initialize the ouput value + numberOfBytesWritten = 0; + + // Check that the given buffer is valid + if (buffer == nullptr || bufferSize == 0) + { + return TimelinePacketStatus::BufferExhaustion; + } + + // Utils + unsigned int uint32_t_size = sizeof(uint32_t); + unsigned int uint64_t_size = sizeof(uint64_t); + + // Calculate the length of the data (in bytes) + unsigned int timelineEntityPacketDataLength = uint64_t_size; // Profiling GUID + + + // Calculate the timeline binary packet size (in bytes) + unsigned int timelineEntityPacketSize = 2 * uint32_t_size + // Header (2 words) + timelineEntityPacketDataLength; // Profiling GUID + + // Check whether the timeline binary packet fits in the given buffer + if (timelineEntityPacketSize > bufferSize) + { + return TimelinePacketStatus::BufferExhaustion; + } + + // Packet header word 0: + // 26:31 [6] packet_family: timeline Packet Family, value 0b000001 + // 19:25 [7] packet_class: packet class + // 16:18 [3] packet_type: packet type + // 8:15 [8] reserved: all zeros + // 0:7 [8] stream_id: stream identifier + uint32_t packetFamily = 1; + uint32_t packetClass = 0; + uint32_t packetType = 1; + uint32_t streamId = 0; + uint32_t packetHeaderWord0 = ((packetFamily & 0x0000003F) << 26) | + ((packetClass & 0x0000007F) << 19) | + ((packetType & 0x00000007) << 16) | + ((streamId & 0x00000007) << 0); + + // Packet header word 1: + // 25:31 [7] reserved: all zeros + // 24 [1] sequence_numbered: when non-zero the 4 bytes following the header is a u32 sequence number + // 0:23 [24] data_length: unsigned 24-bit integer. Length of data, in bytes. Zero is permitted + uint32_t sequenceNumbered = 0; + uint32_t dataLength = boost::numeric_cast<uint32_t>(timelineEntityPacketDataLength); // Profiling GUID + uint32_t packetHeaderWord1 = ((sequenceNumbered & 0x00000001) << 24) | + ((dataLength & 0x00FFFFFF) << 0); + + // Initialize the offset for writing in the buffer + unsigned int offset = 0; + + // Write the timeline binary packet header to the buffer + WriteUint32(buffer, offset, packetHeaderWord0); + offset += uint32_t_size; + WriteUint32(buffer, offset, packetHeaderWord1); + offset += uint32_t_size; + + // Write the timeline binary packet payload to the buffer + WriteUint64(buffer, offset, profilingGuid); // Profiling GUID + + // Update the number of bytes written + numberOfBytesWritten = timelineEntityPacketSize; + + return TimelinePacketStatus::Ok; +} + } // namespace profiling } // namespace armnn |