Function SetMetaData

engine/dlib/src/dlib/buffer.cpp:631–665

    }

    Result SetMetaData(HBuffer hbuffer, dmhash_t name_hash, const void* data, uint32_t count, ValueType type)
    {
        Buffer* buffer = g_BufferContext->Get(hbuffer);
        if (!buffer) {
            return RESULT_BUFFER_INVALID;
        }
        if (count == 0) {
            return RESULT_METADATA_INVALID;
        }

        Buffer::MetaData* item = FindMetaDataItem(buffer, name_hash);
        uint32_t values_block_size = GetSizeForValueType(type)*count; // do this once
        if (item) {
            // make sure the type and value count is right
            if (item->m_ValueCount != count || item->m_ValueType != type) {
                return RESULT_METADATA_INVALID;
            }
            memcpy(item->m_Data, data, values_block_size);
            return RESULT_OK;
        } else {
            dmArray<Buffer::MetaData*>& metadata_items = buffer->m_MetaDataArray;
            if (metadata_items.Full()) {
                metadata_items.OffsetCapacity(2);
            }
            item = (Buffer::MetaData*) malloc(sizeof(Buffer::MetaData));
            item->m_Name = name_hash;
            item->m_ValueCount = count;
            item->m_ValueType = type;
            item->m_Data = malloc(values_block_size);
            memcpy(item->m_Data, data, values_block_size);
            metadata_items.Push(item);
        }

        return RESULT_OK;
    }

}