From 81d20554aa626775ac4607964f06437641a345b8 Mon Sep 17 00:00:00 2001
From: Swung0x48 <swung0x48@outlook.com>
Date: Sat, 19 Sep 2026 22:12:36 -0400
Subject: [PATCH] [MG_Test] (Disaggregated): P5f fe - expose capture snapshot
 loss across make-current

---
 MobileGL/MG_Test/Pipe/FieldOwnershipTest.cpp | 34 ++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/MobileGL/MG_Test/Pipe/FieldOwnershipTest.cpp b/MobileGL/MG_Test/Pipe/FieldOwnershipTest.cpp
index 065d7597..e44e643f 100644
--- a/MobileGL/MG_Test/Pipe/FieldOwnershipTest.cpp
+++ b/MobileGL/MG_Test/Pipe/FieldOwnershipTest.cpp
@@ -935,6 +935,40 @@ TEST_F(FieldOwnershipTest, SplitOpenSpansAreOwnedByTheApplierAndSurviveOtherBind
     MGPipeServerClearVerbBoundary();
 }
 
+TEST_F(FieldOwnershipTest, SplitCaptureSnapshotSurvivesMakeCurrentUntilObjectRelease) {
+    RoleSplitArm guard;
+    guard.Arm(true);
+    auto& state = MGPipeApplier();
+    state.StreamOutputSpans.clear();
+    MGPStreamOutputBegin begin{};
+    begin.LifetimeId = 0x100000002ull;
+    begin.CaptureProgram = {7, 2};
+    begin.Targets[3] = {{9, 3}, 16, 64};
+    state.StreamOutputSpans[begin.LifetimeId] = begin;
+    state.BoundStreamOutputLifetimeId = begin.LifetimeId;
+
+    // Make-current resets binding state, not a live object's open capture. The
+    // returning context emits context values again, but never repeats Begin.
+    MGPipeApplierReset();
+    MGPContextValues returning{};
+    returning.BoundTransformFeedbackLifetimeId = begin.LifetimeId;
+    returning.IsTransformFeedbackActive = 1;
+    MGPipeApplySetContextValues(returning);
+    EXPECT_EQ(state.BoundStreamOutputLifetimeId, begin.LifetimeId);
+    EXPECT_TRUE(gPipeInputs.HasOpenTransformFeedbackSpan(begin.LifetimeId));
+    const auto found = state.StreamOutputSpans.find(begin.LifetimeId);
+    EXPECT_NE(found, state.StreamOutputSpans.end());
+    if (found != state.StreamOutputSpans.end()) {
+        EXPECT_EQ(found->second.CaptureProgram, begin.CaptureProgram);
+        EXPECT_EQ(found->second.Targets[3].Res, begin.Targets[3].Res);
+        EXPECT_EQ(found->second.Targets[3].Offset, 16u);
+        EXPECT_EQ(found->second.Targets[3].Size, 64u);
+    }
+    MGPipeApplierReleaseObjectRecords();
+    EXPECT_FALSE(gPipeInputs.HasOpenTransformFeedbackSpan(begin.LifetimeId));
+    EXPECT_EQ(state.BoundStreamOutputLifetimeId, 0u);
+}
+
 TEST_F(FieldOwnershipTest, RoleSplitOffFoldsTheFillSideOntoTheSharedBlock) {
     EXPECT_FALSE(MGPipeRoleSplitActive());
     EXPECT_EQ(&MGPipeClientInputs(), &gPipeInputs);