modelcontextprotocol/csharp-sdk
Watch
1
0
Fork
You've already forked csharp-sdk
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 1

Use ReadOnlyMemory<byte> for binary data to eliminate UTF-16 transcoding (#1070)

Browse source 
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
Co-authored-by: ericstj <8918108+ericstj@users.noreply.github.com>
Co-authored-by: Eric StJohn <ericstj@microsoft.com>
This commit is contained in:
Copilot 2026-02-19 14:08:05 -08:00 • committed by GitHub
commit 80b1ad21d7
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
1 changed files with 400 additions and 103 deletions
Download patch file Download diff file Expand all files Collapse all files

16
src/ModelContextProtocol.Core/AIContentExtensions.cs
View file

@ -1,9 +1,7 @@
using Microsoft.Extensions.AI;
using ModelContextProtocol.Client;
using ModelContextProtocol.Protocol;
#if !NET
using System.Runtime.InteropServices;
#endif
using System.Text;
using System.Text.Json;
using System.Text.Json.Nodes;
@ -281,9 +279,9 @@ public static class AIContentExtensions
{
TextContentBlock textContent => new TextContent(textContent.Text),
ImageContentBlock imageContent => new DataContent(Convert.FromBase64String(imageContent.Data), imageContent.MimeType),
ImageContentBlock imageContent => new DataContent(imageContent.DecodedData, imageContent.MimeType),
AudioContentBlock audioContent => new DataContent(Convert.FromBase64String(audioContent.Data), audioContent.MimeType),
AudioContentBlock audioContent => new DataContent(audioContent.DecodedData, audioContent.MimeType),
EmbeddedResourceBlock resourceContent => resourceContent.Resource.ToAIContent(),
@ -324,7 +322,7 @@ public static class AIContentExtensions
AIContent ac = content switch
{
BlobResourceContents blobResource => new DataContent(Convert.FromBase64String(blobResource.Blob), blobResource.MimeType ?? "application/octet-stream"),
BlobResourceContents blobResource => new DataContent(blobResource.DecodedData, blobResource.MimeType ?? "application/octet-stream"),
TextResourceContents textResource => new TextContent(textResource.Text),
_ => throw new NotSupportedException($"Resource type '{content.GetType().Name}' is not supported.")
};
@ -401,13 +399,13 @@ public static class AIContentExtensions
DataContent dataContent when dataContent.HasTopLevelMediaType("image") => new ImageContentBlock
{
Data = dataContent.Base64Data.ToString(),
Data = EncodingUtilities.GetUtf8Bytes(dataContent.Base64Data.Span),
MimeType = dataContent.MediaType,
},
DataContent dataContent when dataContent.HasTopLevelMediaType("audio") => new AudioContentBlock
{
Data = dataContent.Base64Data.ToString(),
Data = EncodingUtilities.GetUtf8Bytes(dataContent.Base64Data.Span),
MimeType = dataContent.MediaType,
},
@ -415,7 +413,7 @@ public static class AIContentExtensions
{
Resource = new BlobResourceContents
{
Blob = dataContent.Base64Data.ToString(),
Blob = EncodingUtilities.GetUtf8Bytes(dataContent.Base64Data.Span),
MimeType = dataContent.MediaType,
Uri = string.Empty,
}