From 05e7ac6551d53ce848360941acfb9e74b4253a79 Mon Sep 17 00:00:00 2001
From: Robert Mader <robert.mader@collabora.com>
Date: Thu, 27 Mar 2025 15:11:25 +0100
Subject: [PATCH] llvmpipe: Take offset into account when importing dmabufs

Which is necessary for many common YCbCr formats.

Fixes: d74ea2c117f (llvmpipe: Implement dmabuf handling)
Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Signed-off-by: Robert Mader <robert.mader@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34240>
---
 src/gallium/drivers/llvmpipe/lp_texture.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/drivers/llvmpipe/lp_texture.c b/src/gallium/drivers/llvmpipe/lp_texture.c
index eddc576ed67..f207738706a 100644
--- a/src/gallium/drivers/llvmpipe/lp_texture.c
+++ b/src/gallium/drivers/llvmpipe/lp_texture.c
@@ -757,7 +757,7 @@ llvmpipe_resource_from_handle(struct pipe_screen *_screen,
           _screen->import_memory_fd(_screen, whandle->handle,
                                     (struct pipe_memory_allocation**)&alloc,
                                     &size, true)) {
-         void *data = alloc->cpu_addr;
+         void *data = (char*)alloc->cpu_addr + whandle->offset;
          lpr->dt = winsys->displaytarget_create_mapped(winsys, template->bind,
                                                        template->format, template->width0, template->height0,
                                                        whandle->stride, data);