From 25f44bc6d9c2f4b1836ef117e6ed0841a89819f6 Mon Sep 17 00:00:00 2001
From: Alex Mihaiuc <69110671+foxmsft@users.noreply.github.com>
Date: Thu, 26 Mar 2026 18:33:25 +0100
Subject: [PATCH] Emulate ZoomIt _mm_cvtsi128_si64 with _mm_storel_epi64 for
 x86 (#46529)

<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
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## Summary of the Pull Request

Added this to ensure that ZoomIt can still build for 32 bit, even though
PowerToys doesn't ship such binaries.

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## PR Checklist

- [ ] Closes: #xxx
<!-- - [ ] Closes: #yyy (add separate lines for additional resolved
issues) -->
- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx

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or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments

<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed

Ensured that the ZoomIt subproject compiles fine for 32 bit, this inside
the Sysinternals build process, also tested that the panoramic
screenshot functionality works. This change is isolated through the
preprocessor for AMD64 and ARM64.
---
 src/modules/ZoomIt/ZoomIt/PanoramaCapture.cpp | 10 ++++++++++
 src/modules/ZoomIt/ZoomIt/ZoomIt.rc           |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/modules/ZoomIt/ZoomIt/PanoramaCapture.cpp b/src/modules/ZoomIt/ZoomIt/PanoramaCapture.cpp
index 106aa825b3..eb0145c7f6 100644
--- a/src/modules/ZoomIt/ZoomIt/PanoramaCapture.cpp
+++ b/src/modules/ZoomIt/ZoomIt/PanoramaCapture.cpp
@@ -118,6 +118,16 @@
 #include <commctrl.h>
 #if defined(_M_X64) || defined(_M_IX86)
 #include <emmintrin.h>
+#if defined(_M_IX86)
+// _mm_cvtsi128_si64 is unavailable on 32-bit x86; emulate via _mm_storel_epi64.
+inline __int64 _mm_cvtsi128_si64_compat( __m128i v )
+{
+    __int64 r;
+    _mm_storel_epi64( reinterpret_cast<__m128i*>( &r ), v );
+    return r;
+}
+#define _mm_cvtsi128_si64 _mm_cvtsi128_si64_compat
+#endif
 #elif defined(_M_ARM64)
 #include <arm_neon.h>
 #endif
diff --git a/src/modules/ZoomIt/ZoomIt/ZoomIt.rc b/src/modules/ZoomIt/ZoomIt/ZoomIt.rc
index 8772fca51c..cfc502b0c8 100644
--- a/src/modules/ZoomIt/ZoomIt/ZoomIt.rc
+++ b/src/modules/ZoomIt/ZoomIt/ZoomIt.rc
@@ -121,7 +121,7 @@ FONT 8, "MS Shell Dlg", 0, 0, 0x0
 BEGIN
     DEFPUSHBUTTON   "OK",IDOK,184,308,50,14
     PUSHBUTTON      "Cancel",IDCANCEL,241,308,50,14
-    LTEXT           "ZoomIt v10.1",IDC_VERSION,42,7,73,10
+    LTEXT           "ZoomIt v11.0",IDC_VERSION,42,7,73,10
     LTEXT           "Copyright \251 2006-2026 Mark Russinovich",IDC_COPYRIGHT,42,17,251,8
     CONTROL         "<a HREF=""https://www.sysinternals.com"">Sysinternals - www.sysinternals.com</a>",IDC_LINK,
                     "SysLink",WS_TABSTOP,42,26,150,9