hwdec_vulkan: simplify requirement checks for Vulkan interop

I originally wrote this trying to avoid doing an explicit version check
on the headers, but it just makes things more confusing, and the
requirements harder to understand.

So, Vulkan interop now takes a dependency on the header release where
they finalised the video decode headers. VK_EXT_descriptor_buffer was
added in 1.3.235, so that's covered as well.

Along the way I fixed a bug in the waf build where it was depending
on libplacebo-next instead of libplacebo-decode.

1 files changed, 3 insertions, 4 deletions

diff --git a/meson.build b/meson.build
index d03fe823a4..812f97cc98 100644
--- a/meson.build
+++ b/meson.build
@@ -933,8 +933,6 @@ if features['libplacebo-next']
                      'video/out/gpu_next/context.c')
 endif
 
-features += {'libplacebo-decode': features['libplacebo'] and libplacebo.version().version_compare('>=5.275.0')}
-
 sdl2_video = get_option('sdl2-video').require(
     features['sdl2'],
     error_message: 'sdl2 was not found!',
@@ -1312,9 +1310,10 @@ if features['cuda-interop'] and features['vulkan']
 endif
 
 vulkan_interop = get_option('vulkan-interop').require(
-    vulkan.found() and features['libplacebo-decode'] and
+    features['vulkan'] and vulkan.version().version_compare('>=1.3.238') and
+    features['libplacebo'] and libplacebo.version().version_compare('>=5.278.0') and
     libavutil.version().version_compare('>=58.11.100'),
-    error_message: 'Vulkan Interop requires vulkan, libplacebo >= 5.275.0, and libavutil >= 58.11.100',
+    error_message: 'Vulkan Interop requires vulkan headers >= 1.3.238, libplacebo >= 5.278.0, and libavutil >= 58.11.100',
 )
 features += {'vulkan-interop': vulkan_interop.allowed()}
 if vulkan_interop.allowed()