From e86a93f55463c088aa0b5260e915ffbf9f86c62b Mon Sep 17 00:00:00 2001 From: Dongwon Kim Date: Wed, 3 Nov 2021 23:51:52 -0700 Subject: virtio-gpu: splitting one extended mode guest fb into n-scanouts When guest is running Linux/X11 with extended multiple displays mode enabled, the guest shares one scanout resource each time containing whole surface rather than sharing individual display output separately. This extended frame is properly splited and rendered on the corresponding scanout surfaces but not in case of blob-resource (zero copy). This code change lets the qemu split this one large surface data into multiple in case of blob-resource as well so that each sub frame then can be blitted properly to each scanout. v2: resizing qemu console in virtio_gpu_update_dmabuf to scanout's width and height v3: updating stub function of virtio_gpu_update_dmabuf to match the type Cc: Gerd Hoffmann Cc: Vivek Kasireddy Signed-off-by: Dongwon Kim Message-Id: <20211104065153.28897-5-dongwon.kim@intel.com> Signed-off-by: Gerd Hoffmann --- hw/display/virtio-gpu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'hw/display/virtio-gpu.c') diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 182e0868b0..d78b9700c7 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -517,9 +517,9 @@ static void virtio_gpu_resource_flush(VirtIOGPU *g, console_has_gl(scanout->con)) { dpy_gl_update(scanout->con, 0, 0, scanout->width, scanout->height); - return; } } + return; } if (!res->blob && @@ -627,7 +627,7 @@ static void virtio_gpu_do_set_scanout(VirtIOGPU *g, if (res->blob) { if (console_has_gl(scanout->con)) { - if (!virtio_gpu_update_dmabuf(g, scanout_id, res, fb)) { + if (!virtio_gpu_update_dmabuf(g, scanout_id, res, fb, r)) { virtio_gpu_update_scanout(g, scanout_id, res, r); return; } -- cgit v1.2.3