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linux-dmabuf: implement immediate dmabuf import

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handle create_immed() dmabuf import requests and support
zwp_linux_dmabuf_v1_interface version 2.

v2: terminate client with INVALID_WL_BUFFER when reason
    for create_immed failure is unknown.

[daniels: Bump wayland-protocols dependency.]

Signed-off-by: Varad Gautam <varad.gautam@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
This commit is contained in:
Varad Gautam 2017-04-26 19:15:59 +05:30 committed by Daniel Stone
parent a5066e00e8
commit 65c94b8804
2 changed files with 53 additions and 12 deletions
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2
configure.ac
View file

@ -219,7 +219,7 @@ fi
PKG_CHECK_MODULES(LIBINPUT_BACKEND, [libinput >= 0.8.0])
PKG_CHECK_MODULES(COMPOSITOR, [$COMPOSITOR_MODULES])
PKG_CHECK_MODULES(WAYLAND_PROTOCOLS, [wayland-protocols >= 1.7],
PKG_CHECK_MODULES(WAYLAND_PROTOCOLS, [wayland-protocols >= 1.8],
[ac_wayland_protocols_pkgdatadir=`$PKG_CONFIG --variable=pkgdatadir wayland-protocols`])
AC_SUBST(WAYLAND_PROTOCOLS_DATADIR, $ac_wayland_protocols_pkgdatadir)

63
libweston/linux-dmabuf.c
View file

@ -143,12 +143,13 @@ destroy_linux_dmabuf_wl_buffer(struct wl_resource *resource)
}
static void
params_create(struct wl_client *client,
struct wl_resource *params_resource,
int32_t width,
int32_t height,
uint32_t format,
uint32_t flags)
params_create_common(struct wl_client *client,
struct wl_resource *params_resource,
uint32_t buffer_id,
int32_t width,
int32_t height,
uint32_t format,
uint32_t flags)
{
struct linux_dmabuf_buffer *buffer;
int i;
@ -263,7 +264,7 @@ params_create(struct wl_client *client,
buffer->buffer_resource = wl_resource_create(client,
&wl_buffer_interface,
1, 0);
1, buffer_id);
if (!buffer->buffer_resource) {
wl_resource_post_no_memory(params_resource);
goto err_buffer;
@ -273,7 +274,10 @@ params_create(struct wl_client *client,
&linux_dmabuf_buffer_implementation,
buffer, destroy_linux_dmabuf_wl_buffer);
zwp_linux_buffer_params_v1_send_created(params_resource,
/* send 'created' event when the request is not for an immediate
* import, ie buffer_id is zero */
if (buffer_id == 0)
zwp_linux_buffer_params_v1_send_created(params_resource,
buffer->buffer_resource);
return;
@ -283,17 +287,54 @@ err_buffer:
buffer->user_data_destroy_func(buffer);
err_failed:
zwp_linux_buffer_params_v1_send_failed(params_resource);
if (buffer_id == 0)
zwp_linux_buffer_params_v1_send_failed(params_resource);
else
/* since the behavior is left implementation defined by the
* protocol in case of create_immed failure due to an unknown cause,
* we choose to treat it as a fatal error and immediately kill the
* client instead of creating an invalid handle and waiting for it
* to be used.
*/
wl_resource_post_error(params_resource,
ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_INVALID_WL_BUFFER,
"importing the supplied dmabufs failed");
err_out:
linux_dmabuf_buffer_destroy(buffer);
}
static void
params_create(struct wl_client *client,
struct wl_resource *params_resource,
int32_t width,
int32_t height,
uint32_t format,
uint32_t flags)
{
params_create_common(client, params_resource, 0, width, height, format,
flags);
}
static void
params_create_immed(struct wl_client *client,
struct wl_resource *params_resource,
uint32_t buffer_id,
int32_t width,
int32_t height,
uint32_t format,
uint32_t flags)
{
params_create_common(client, params_resource, buffer_id, width, height,
format, flags);
}
static const struct zwp_linux_buffer_params_v1_interface
zwp_linux_buffer_params_implementation = {
params_destroy,
params_add,
params_create
params_create,
params_create_immed
};
static void
@ -457,7 +498,7 @@ WL_EXPORT int
linux_dmabuf_setup(struct weston_compositor *compositor)
{
if (!wl_global_create(compositor->wl_display,
&zwp_linux_dmabuf_v1_interface, 1,
&zwp_linux_dmabuf_v1_interface, 2,
compositor, bind_linux_dmabuf))
return -1;