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commit 493e00dc397a262a3bd3f2ea8cf8048dfb0392c5
Author:     Timo Rothenpieler <[email protected]>
AuthorDate: Wed Oct 7 02:26:10 2026 +0200
Commit:     Timo Rothenpieler <[email protected]>
CommitDate: Wed Oct 7 19:45:10 2026 +0200

    tests/checkasm/sw_rgb: test uyvytoyuv420 and yuyvtoyuv420
    
    Only the yuv422 variants of the interleaved-to-planar converters were
    tested, so the yuv420 variants had no coverage at all. The existing
    helper works for 4:2:0 output as is, since it compares whole
    destination buffers.
    
    Also add single-line sizes covering the slow path, the fast path, and
    the fast path with a tail, which would have caught the height-1 overrun
    fixed in a previous commit.
    
    Assisted-by: Claude Opus 5.5
---
 tests/checkasm/sw_rgb.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tests/checkasm/sw_rgb.c b/tests/checkasm/sw_rgb.c
index 7bf5d8e175..723f810411 100644
--- a/tests/checkasm/sw_rgb.c
+++ b/tests/checkasm/sw_rgb.c
@@ -40,7 +40,8 @@
 static const uint8_t width[] = {12, 16, 20, 32, 36, 128};
 static const struct {uint8_t w, h;} planes[] = {
     {12,16}, {16,16}, {20,23}, {32,18}, {8,128}, {128,128},
-    {1,1}, {1,4}, {3,8}, {13,16}, {21,9}, {63,7}, {127,5}
+    {1,1}, {1,4}, {3,8}, {13,16}, {21,9}, {63,7}, {127,5},
+    {13,1}, {32,1}, {66,1}
 };
 
 #define MAX_STRIDE 128
@@ -964,6 +965,10 @@ void checkasm_check_sw_rgb(void)
     report("uyvytoyuv422");
     check_interleaved_to_planar(yuyvtoyuv422, "yuyvtoyuv422", 2);
     report("yuyvtoyuv422");
+    check_interleaved_to_planar(uyvytoyuv420, "uyvytoyuv420", 1);
+    report("uyvytoyuv420");
+    check_interleaved_to_planar(yuyvtoyuv420, "yuyvtoyuv420", 2);
+    report("yuyvtoyuv420");
 
     check_interleave_bytes();
     report("interleave_bytes");

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