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virtio-gpu: Add virtio_gpu_set_scanout_blob

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This API allows Qemu to set the blob allocated by the Guest as
the scanout buffer. If Opengl support is available, then the
scanout buffer would be submitted as a dmabuf to the UI; if not,
a pixman image is created from the scanout buffer and is
submitted to the UI via the display surface.

Based-on-patch-by: Gerd Hoffmann <kraxel@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Message-Id: <20210526231429.1045476-14-vivek.kasireddy@intel.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Vivek Kasireddy 2021-05-26 16:14:28 -07:00 • committed by Gerd Hoffmann
parent 81cd9f7108
commit 32db3c63ae
3 changed files with 103 additions and 7 deletions
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7
include/hw/virtio/virtio-gpu-bswap.h
View file

@ -68,4 +68,11 @@ virtio_gpu_create_blob_bswap(struct virtio_gpu_resource_create_blob *cblob)
le64_to_cpus(&cblob->size);
}
static inline void
virtio_gpu_scanout_blob_bswap(struct virtio_gpu_set_scanout_blob *ssb)
{
virtio_gpu_bswap_32(ssb, sizeof(*ssb) - sizeof(ssb->offsets[3]));
le32_to_cpus(&ssb->offsets[3]);
}
#endif