fix: Cap the AHardwareBuffer import cache at maximum 12 images (#4129)

Importing an AHardwareBuffer into Vulkan acquires a reference on it, so the
unbounded import cache pinned every camera buffer the Resizer had ever seen.
Cap it at 12 entries, evicting oldest-inserted first.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

Author: jslok

packages/react-native-vision-camera-resizer/android/src/main/cpp/vulkan/VulkanHardwareBufferInterop.cpp

@@ -73,6 +73,14 @@ const VulkanHardwareBufferInterop::ImportedImage& VulkanHardwareBufferInterop::i
     iterator = _cachedImages.erase(iterator);
   }
 
+  // Evict the oldest entries before inserting so old camera sessions' buffers get released.
+  // Safe to destroy here: run() holds _stateMutex across import -> dispatch -> submit-and-wait,
+  // so no imported image is in flight on the GPU at this point.
+  while (_cachedImages.size() >= kMaxCachedImages) {
+    destroyImportedImage(_cachedImages.front().importedImage);
+    _cachedImages.erase(_cachedImages.begin());
+  }
+
   // No suitable ImportedImage was found in our cache - we have to create a new one.
   CachedImage cachedImage{
       .hardwareBuffer = hardwareBuffer,

packages/react-native-vision-camera-resizer/android/src/main/cpp/vulkan/VulkanHardwareBufferInterop.hpp

@@ -70,6 +70,15 @@ class VulkanHardwareBufferInterop final {
     ImportedImage importedImage{};
   };
 
+  /**
+   * Upper bound on cached imported images (oldest-inserted evicted first).
+   * Importing an AHardwareBuffer into Vulkan acquires a reference on it, so every cached entry
+   * pins a whole camera buffer - each camera session restart allocates a fresh buffer set, and
+   * an unbounded cache pins the old sets forever. A streaming session cycles through ~4-6
+   * buffers, so 12 leaves plenty of slack.
+   */
+  static inline constexpr size_t kMaxCachedImages = 12;
+
   static inline constexpr VkFormatFeatureFlags kRequiredExternalFormatFeatures = VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT;
   static inline constexpr VkFormatFeatureFlags kLinearFilterFeatureMask =
       VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT | VK_FORMAT_FEATURE_SAMPLED_IMAGE_YCBCR_CONVERSION_LINEAR_FILTER_BIT;