minigbm: Add bo_get_plane_fd backend hook

Non-DRM drivers shouldn't rely on handles and DRM API. Add hook to allow drivers create custom implementation. Signed-off-by: Roman Stratiienko <[email protected]> Change-Id: I458dae38f80697184070019606b125992a9aa01d
waydroid · Sep 12, 2022 · 1c4ff09 · 1c4ff09
1 parent 179dfb9
commit 1c4ff09
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diff --git a/drv.c b/drv.c
@@ -663,6 +663,11 @@ int drv_bo_get_plane_fd(struct bo *bo, size_t plane)
 	if (bo->is_test_buffer)
 		return -EINVAL;
 
+	if (bo->drv->backend->bo_get_plane_fd) {
+		fd = bo->drv->backend->bo_get_plane_fd(bo, plane);
+		return fd;
+	}
+
 	ret = drmPrimeHandleToFD(bo->drv->fd, bo->handles[plane].u32, DRM_CLOEXEC | DRM_RDWR, &fd);
 
 	// Older DRM implementations blocked DRM_RDWR, but gave a read/write mapping anyways

diff --git a/drv_priv.h b/drv_priv.h
@@ -94,6 +94,7 @@ struct backend {
 	int (*bo_unmap)(struct bo *bo, struct vma *vma);
 	int (*bo_invalidate)(struct bo *bo, struct mapping *mapping);
 	int (*bo_flush)(struct bo *bo, struct mapping *mapping);
+	int (*bo_get_plane_fd)(struct bo *bo, size_t plane);
 	void (*resolve_format_and_use_flags)(struct driver *drv, uint32_t format,
 					     uint64_t use_flags, uint32_t *out_format,
 					     uint64_t *out_use_flags);