From b4fe442a55d200fc682a7ca4f202274458ec5f12 Mon Sep 17 00:00:00 2001
From: Omar Rizwan <omar@omar.website>
Date: Sat, 30 Sep 2023 12:12:48 -0400
Subject: display: Camera slice works! Always evict stale draw set images

---
 virtual-programs/display.folk | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'virtual-programs')

diff --git a/virtual-programs/display.folk b/virtual-programs/display.folk
index 222813a1..f7b70959 100644
--- a/virtual-programs/display.folk
+++ b/virtual-programs/display.folk
@@ -340,6 +340,18 @@ On process {
         proc checkImCacheAndCopyIfNeeded {imDrawSet} {
             variable imCache
             variable IMCACHE_MAX_IMAGES
+
+            dict for {im v} $imDrawSet {
+                if {![dict exists $imCache $im]} { continue }
+                # Check for staleness and remove from cache if so.
+                lassign [dict get $imCache $im] gim expectedVersion
+                set version [Heap::folkHeapGetVersion [string map {uint8_t void} [::image_t data_ptr $im]]]
+                if {$expectedVersion != $version} {
+                    Gpu::ImageManager::freeGpuImage $gim
+                    dict unset imCache $im
+                }
+            }
+
             set notInCache [dictset difference $imDrawSet $imCache]
             set notInDrawSet [dictset difference $imCache $imDrawSet]
 
-- 
cgit v1.2.3