From affbfb6a28cfb2a5385e8a2e0417137599f06fa0 Mon Sep 17 00:00:00 2001
From: nyorain <nyorain@gmail.com>
Date: Fri, 12 Oct 2018 22:04:12 +0200
Subject: Support older wlr_linux_dmabuf_v1 clients

If a client uses an older version of the dmabuf protocol, use the
`formats` event instead of `modifiers` (since that didn't exist in older
versions).
With a bit of necessary guessing, support dmabuf importing even when
EGL_EXT_image_dma_buf_import_modifiers isn't present instead of
failing up front.
---
 include/wlr/render/dmabuf.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'include/wlr')

diff --git a/include/wlr/render/dmabuf.h b/include/wlr/render/dmabuf.h
index 33c3a129..32cfe874 100644
--- a/include/wlr/render/dmabuf.h
+++ b/include/wlr/render/dmabuf.h
@@ -16,6 +16,10 @@
 #define DRM_FORMAT_MOD_INVALID ((1ULL<<56) - 1)
 #endif
 
+#ifndef DRM_FORMAT_MOD_LINEAR
+#define DRM_FORMAT_MOD_LINEAR 0
+#endif
+
 #define WLR_DMABUF_MAX_PLANES 4
 
 enum wlr_dmabuf_attributes_flags {
-- 
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