From df2953cc7f5d84670d88dbd9a54554ed79196962 Mon Sep 17 00:00:00 2001
From: Meta Vens <rwvens@hotmail.com>
Date: Tue, 2 Jun 2026 16:59:51 +0100
Subject: [PATCH] Add SSH-triggered Eve screenshots

---
 README.md                          |  6 +++
 Sources/EVEViewController.mm       | 63 ++++++++++++++++++++++++++++++
 scripts/capture-eve-screenshot.ps1 | 31 +++++++++++++++
 3 files changed, 100 insertions(+)
 create mode 100644 scripts/capture-eve-screenshot.ps1

diff --git a/README.md b/README.md
index 7264f91..82234d6 100644
--- a/README.md
+++ b/README.md
@@ -304,6 +304,12 @@ Launch `EveCanvas` from SpringBoard, or over SSH:
 uiopen --bundleid org.gamecult.evecanvas
 ```
 
+Capture the running native renderer over SSH:
+
+```powershell
+powershell -ExecutionPolicy Bypass -File .\scripts\capture-eve-screenshot.ps1
+```
+
 If OpenGL ES context creation fails on-device, the app stays alive with the
 UIKit overlay instead of aborting launch. The render surface can then be fixed
 without losing the basic app deployment path.
diff --git a/Sources/EVEViewController.mm b/Sources/EVEViewController.mm
index 043ef78..92d90cf 100644
--- a/Sources/EVEViewController.mm
+++ b/Sources/EVEViewController.mm
@@ -321,6 +321,69 @@ static NSData *EVEMediaObservation(NSString *observationId,
 
   [self.glView renderAtTime:link.timestamp];
   [self updateOverlay];
+  [self serviceScreenshotRequestIfNeeded];
+}
+
+- (void)serviceScreenshotRequestIfNeeded {
+  NSString *directory = @"/var/mobile/Library/EveCanvas";
+  NSString *requestPath = [directory stringByAppendingPathComponent:@"capture-request"];
+  NSFileManager *fileManager = NSFileManager.defaultManager;
+  if (![fileManager fileExistsAtPath:requestPath]) {
+    return;
+  }
+
+  [fileManager createDirectoryAtPath:directory withIntermediateDirectories:YES attributes:nil error:nil];
+  [fileManager removeItemAtPath:requestPath error:nil];
+
+  CGSize size = self.view.bounds.size;
+  if (size.width <= 0.0 || size.height <= 0.0) {
+    [@"invalid-view-size" writeToFile:[directory stringByAppendingPathComponent:@"capture-status.txt"]
+                           atomically:YES
+                             encoding:NSUTF8StringEncoding
+                                error:nil];
+    return;
+  }
+
+  UIGraphicsBeginImageContextWithOptions(size, YES, UIScreen.mainScreen.scale);
+  BOOL rendered = [self.view drawViewHierarchyInRect:self.view.bounds afterScreenUpdates:YES];
+  if (!rendered) {
+    CGContextRef context = UIGraphicsGetCurrentContext();
+    if (context) {
+      [self.view.layer renderInContext:context];
+      rendered = YES;
+    }
+  }
+  UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
+  UIGraphicsEndImageContext();
+  if (!rendered || !image) {
+    [@"render-failed" writeToFile:[directory stringByAppendingPathComponent:@"capture-status.txt"]
+                       atomically:YES
+                         encoding:NSUTF8StringEncoding
+                            error:nil];
+    return;
+  }
+
+  NSData *png = UIImagePNGRepresentation(image);
+  if (!png) {
+    [@"png-encoding-failed" writeToFile:[directory stringByAppendingPathComponent:@"capture-status.txt"]
+                             atomically:YES
+                               encoding:NSUTF8StringEncoding
+                                  error:nil];
+    return;
+  }
+
+  NSString *latestPath = [directory stringByAppendingPathComponent:@"latest-screenshot.png"];
+  if ([png writeToFile:latestPath atomically:YES]) {
+    [@"ok" writeToFile:[directory stringByAppendingPathComponent:@"capture-status.txt"]
+            atomically:YES
+              encoding:NSUTF8StringEncoding
+                 error:nil];
+  } else {
+    [@"write-failed" writeToFile:[directory stringByAppendingPathComponent:@"capture-status.txt"]
+                      atomically:YES
+                        encoding:NSUTF8StringEncoding
+                           error:nil];
+  }
 }
 
 - (void)updateOverlay {
diff --git a/scripts/capture-eve-screenshot.ps1 b/scripts/capture-eve-screenshot.ps1
new file mode 100644
index 0000000..43b9c40
--- /dev/null
+++ b/scripts/capture-eve-screenshot.ps1
@@ -0,0 +1,31 @@
+param(
+  [string] $Target = "eve",
+  [string] $OutputDirectory = "artifacts\screenshots"
+)
+
+$ErrorActionPreference = "Stop"
+
+$projectRoot = Split-Path -Parent $PSScriptRoot
+$outputRoot = Join-Path $projectRoot $OutputDirectory
+New-Item -ItemType Directory -Force -Path $outputRoot | Out-Null
+
+$stamp = Get-Date -Format "yyyyMMdd-HHmmss"
+$localPath = Join-Path $outputRoot "eve-$stamp.png"
+$remoteDir = "/var/mobile/Library/EveCanvas"
+$remotePath = "$remoteDir/latest-screenshot.png"
+$requestPath = "$remoteDir/capture-request"
+
+ssh $Target "mkdir -p '$remoteDir' && chown mobile:mobile '$remoteDir' && rm -f '$remotePath' '$requestPath' && touch '$requestPath' && chown mobile:mobile '$requestPath'"
+
+$deadline = (Get-Date).AddSeconds(10)
+do {
+  Start-Sleep -Milliseconds 250
+  ssh $Target "test -s '$remotePath'"
+  if ($LASTEXITCODE -eq 0) {
+    scp "${Target}:$remotePath" $localPath
+    Write-Host $localPath
+    exit 0
+  }
+} while ((Get-Date) -lt $deadline)
+
+throw "Timed out waiting for EveCanvas screenshot at ${Target}:$remotePath"