C++ (Cpp) fd_bo_from_handleの例

コード例 #1

ファイル: freedreno_screen.c プロジェクト: xranby/mesa

struct fd_bo *
fd_screen_bo_from_handle(struct pipe_screen *pscreen,
		struct winsys_handle *whandle,
		unsigned *out_stride)
{
	struct fd_screen *screen = fd_screen(pscreen);
	struct fd_bo *bo;

	if (whandle->type == DRM_API_HANDLE_TYPE_SHARED) {
		bo = fd_bo_from_name(screen->dev, whandle->handle);
	} else if (whandle->type == DRM_API_HANDLE_TYPE_KMS) {
		bo = fd_bo_from_handle(screen->dev, whandle->handle, 0);
	} else if (whandle->type == DRM_API_HANDLE_TYPE_FD) {
		bo = fd_bo_from_dmabuf(screen->dev, whandle->handle);
	} else {
		DBG("Attempt to import unsupported handle type %d", whandle->type);
		return NULL;
	}

	if (!bo) {
		DBG("ref name 0x%08x failed", whandle->handle);
		return NULL;
	}

	*out_stride = whandle->stride;

	return bo;
}

コード例 #2

ファイル: freedreno_bo.c プロジェクト: ArakniD/libDRM

drm_public struct fd_bo *
fd_bo_from_dmabuf(struct fd_device *dev, int fd)
{
	struct drm_prime_handle req = {
			.fd = fd,
	};
	int ret, size;

	ret = drmIoctl(dev->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &req);
	if (ret) {
		return NULL;
	}

	/* hmm, would be nice if we had a way to figure out the size.. */
	size = 0;

	return fd_bo_from_handle(dev, req.handle, size);
}