[FFmpeg-cvslog] [ffmpeg] vulkan/ffv1: properly initialize the linecache (branch master)

[Lynne via ffmpeg-cvslog]

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Git pushed a commit to branch master
in repository ffmpeg.

The following commit(s) were added to refs/heads/master by this push:
     new 13e063ceec vulkan/ffv1: properly initialize the linecache
13e063ceec is described below

commit 13e063ceec425985c56201e211fb0f76c839158a
Author:     Lynne <d...@lynne.ee>
AuthorDate: Sun Feb 22 00:02:26 2026 +0000
Commit:     Lynne <d...@lynne.ee>
CommitDate: Sun Feb 22 03:39:23 2026 +0100

    vulkan/ffv1: properly initialize the linecache
---
 libavcodec/vulkan/ffv1_common.glsl | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/libavcodec/vulkan/ffv1_common.glsl 
b/libavcodec/vulkan/ffv1_common.glsl
index 9ed71f7e03..8719276691 100644
--- a/libavcodec/vulkan/ffv1_common.glsl
+++ b/libavcodec/vulkan/ffv1_common.glsl
@@ -150,7 +150,7 @@ const uint32_t log2_run[41] = {
     24,
 };
 
-shared VTYPE2 linecache = {};
+shared VTYPE2 linecache;
 
 #ifdef RGB
 #define RGB_LBUF (rgb_linecache - 1)
@@ -236,13 +236,15 @@ ivec2 get_pred(readonly uimage2D pred, ivec2 sp, ivec2 
off,
 
 void linecache_load(readonly uimage2D src, ivec2 sp, int y, uint comp)
 {
-    if (y > 0) {
-        if (gl_LocalInvocationID.x == 0) {
-            TYPE c = TYPE(imageLoad(src, sp + LADDR(ivec2(0, y - 1)))[comp]);
-            linecache = VTYPE2(TYPE(0), c);
-        }
-        barrier();
+    if (gl_LocalInvocationID.x == 0) {
+        linecache[0] = TYPE(0);
+    } else if (gl_LocalInvocationID.x == 1) {
+        TYPE c = TYPE(0);
+        if (y > 0)
+            c = TYPE(imageLoad(src, sp + LADDR(ivec2(0, y - 1)))[comp]);
+        linecache[1] = c;
     }
+    barrier();
 }
 
 void linecache_next(TYPE cur)

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