This patch has been tested on Android on the iMX6.
Tested-by: Robert Foss <robert.f...@collabora.com>
On Thu, 2017-06-08 at 20:56 +0200, Lucas Stach wrote:
> This implements a way to import FDs with modifiers on plain GBM
> devices,
> without the need to go through EGL. This is mostly to the benefit of
> gbm_gralloc, which can keep its dependencies low.
>
> Signed-off-by: Lucas Stach <l.st...@pengutronix.de>
> ---
> src/gbm/backends/dri/gbm_dri.c | 54
> ++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 54 insertions(+)
>
> diff --git a/src/gbm/backends/dri/gbm_dri.c
> b/src/gbm/backends/dri/gbm_dri.c
> index 7fb569078b27..19be440d48e3 100644
> --- a/src/gbm/backends/dri/gbm_dri.c
> +++ b/src/gbm/backends/dri/gbm_dri.c
> @@ -932,6 +932,60 @@ gbm_dri_bo_import(struct gbm_device *gbm,
> break;
> }
>
> + case GBM_BO_IMPORT_FD_MODIFIER:
> + {
> + struct gbm_import_fd_modifier_data *fd_data = buffer;
> + unsigned int error;
> + int fourcc;
> +
> + /* Import with modifier requires createImageFromDmaBufs2 */
> + if (dri->image == NULL || dri->image->base.version < 15 ||
> + dri->image->createImageFromDmaBufs2 == NULL) {
> + errno = ENOSYS;
> + return NULL;
> + }
> +
> + switch(fd_data->format) {
> + case GBM_FORMAT_RGB565:
> + fourcc = __DRI_IMAGE_FOURCC_RGB565;
> + break;
> + case GBM_FORMAT_ARGB8888:
> + case GBM_BO_FORMAT_ARGB8888:
> + fourcc = __DRI_IMAGE_FOURCC_ARGB8888;
> + break;
> + case GBM_FORMAT_XRGB8888:
> + case GBM_BO_FORMAT_XRGB8888:
> + fourcc = __DRI_IMAGE_FOURCC_XRGB8888;
> + break;
> + case GBM_FORMAT_ABGR8888:
> + fourcc = __DRI_IMAGE_FOURCC_ABGR8888;
> + break;
> + case GBM_FORMAT_XBGR8888:
> + fourcc = __DRI_IMAGE_FOURCC_XBGR8888;
> + break;
> + default:
> + errno = EINVAL;
> + return NULL;
> + }
> +
> + image = dri->image->createImageFromDmaBufs2(dri->screen,
> fd_data->width,
> + fd_data->height,
> fourcc,
> + fd_data->modifier,
> + fd_data->fds,
> + fd_data->num_fds,
> + fd_data->strides,
> + fd_data->offsets,
> + 0, 0, 0, 0,
> + &error, NULL);
> + if (image == NULL) {
> + errno = ENOSYS;
> + return NULL;
> + }
> +
> + gbm_format = fd_data->format;
> + break;
> + }
> +
> default:
> errno = ENOSYS;
> return NULL;
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