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/*
* va_wayland_emgd.c - Wayland/EMGD helpers
*
* Copyright (c) 2012 Intel Corporation. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "sysdeps.h"
#include <unistd.h>
#include <dlfcn.h>
#include "va_drmcommon.h"
#include "va_wayland_emgd.h"
#include "va_wayland_private.h"
/* XXX: Wayland/EMGD support currently lives in libwayland-emgd.so.* library */
#define LIBWAYLAND_EMGD_NAME "libwayland-emgd.so.1"
typedef struct va_wayland_emgd_context {
struct va_wayland_context base;
void *handle;
struct wl_emgd *emgd;
void *emgd_interface;
unsigned int is_created : 1;
struct wl_registry *registry;
} VADisplayContextWaylandEMGD;
static inline void
wl_emgd_destroy(struct wl_emgd *emgd)
{
wl_proxy_destroy((struct wl_proxy *)emgd);
}
static VAStatus
va_DisplayContextGetDriverName(
VADisplayContextP pDisplayContext,
char **driver_name_ptr
)
{
*driver_name_ptr = strdup("emgd");
return VA_STATUS_SUCCESS;
}
void
va_wayland_emgd_destroy(VADisplayContextP pDisplayContext)
{
VADriverContextP const ctx = pDisplayContext->pDriverContext;
VADisplayContextWaylandEMGD * const wl_emgd_ctx = pDisplayContext->opaque;
struct drm_state * const drm_state = ctx->drm_state;
if (wl_emgd_ctx->emgd) {
wl_emgd_destroy(wl_emgd_ctx->emgd);
wl_emgd_ctx->emgd = NULL;
}
wl_emgd_ctx->is_created = 0;
if (wl_emgd_ctx->handle) {
dlclose(wl_emgd_ctx->handle);
wl_emgd_ctx->handle = NULL;
}
if (drm_state) {
if (drm_state->fd >= 0) {
close(drm_state->fd);
drm_state->fd = -1;
}
free(ctx->drm_state);
ctx->drm_state = NULL;
}
}
static void
registry_handle_global(
void *data,
struct wl_registry *registry,
uint32_t id,
const char *interface,
uint32_t version
)
{
VADisplayContextWaylandEMGD *wl_emgd_ctx = data;
if (strcmp(interface, "wl_emgd") == 0) {
wl_emgd_ctx->emgd =
wl_registry_bind(registry, id, wl_emgd_ctx->emgd_interface, 1);
}
}
static const struct wl_registry_listener registry_listener = {
registry_handle_global,
NULL,
};
bool
va_wayland_emgd_create(VADisplayContextP pDisplayContext)
{
VADriverContextP const ctx = pDisplayContext->pDriverContext;
VADisplayContextWaylandEMGD *wl_emgd_ctx;
struct drm_state *drm_state;
wl_emgd_ctx = malloc(sizeof(*wl_emgd_ctx));
if (!wl_emgd_ctx)
return false;
wl_emgd_ctx->base.destroy = va_wayland_emgd_destroy;
wl_emgd_ctx->handle = NULL;
wl_emgd_ctx->emgd = NULL;
wl_emgd_ctx->emgd_interface = NULL;
wl_emgd_ctx->is_created = 0;
pDisplayContext->opaque = wl_emgd_ctx;
pDisplayContext->vaGetDriverName = va_DisplayContextGetDriverName;
drm_state = calloc(1, sizeof(struct drm_state));
if (!drm_state)
return false;
drm_state->fd = -1;
drm_state->auth_type = 0;
ctx->drm_state = drm_state;
wl_emgd_ctx->handle = dlopen(LIBWAYLAND_EMGD_NAME, RTLD_LAZY|RTLD_LOCAL);
if (!wl_emgd_ctx->handle)
return false;
wl_emgd_ctx->emgd_interface =
dlsym(wl_emgd_ctx->handle, "wl_emgd_interface");
if (!wl_emgd_ctx->emgd_interface)
return false;
wl_emgd_ctx->registry = wl_display_get_registry(ctx->native_dpy);
wl_registry_add_listener(wl_emgd_ctx->registry, ®istry_listener, wl_emgd_ctx);
wl_display_roundtrip(ctx->native_dpy);
/* registry_handle_global should have been called by the
* wl_display_roundtrip above
*/
if (!wl_emgd_ctx->emgd)
return false;
return true;
}
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