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/*
* Copyright 2021 Google LLC
* SPDX-License-Identifier: MIT
*/
#ifndef RENDER_VIRGL_H
#define RENDER_VIRGL_H
#include "render_common.h"
#ifdef ENABLE_RENDER_SERVER_WORKER_THREAD
#include "c11/threads.h"
#endif
/* Workers call into virglrenderer. When they are processes, not much care is
* required. We just want to be careful that the server process might have
* initialized viglrenderer before workers are forked.
*
* But when workers are threads, we need to grab a lock to protect
* virglrenderer.
*
* TODO skip virglrenderer.h and go straight to vkr_renderer.h. That allows
* us to remove this file.
*/
struct render_virgl {
#ifdef ENABLE_RENDER_SERVER_WORKER_THREAD
/* this protects the struct */
mtx_t struct_mutex;
/* this protects virglrenderer */
mtx_t dispatch_mutex;
#endif
/* for nested initialization */
int init_count;
uint32_t init_flags;
struct list_head contexts;
};
extern struct render_virgl render_virgl_internal;
bool
render_virgl_init(uint32_t init_flags);
void
render_virgl_fini(void);
void
render_virgl_add_context(struct render_context *ctx);
void
render_virgl_remove_context(struct render_context *ctx);
static inline void
render_virgl_lock_dispatch(void)
{
#ifdef ENABLE_RENDER_SERVER_WORKER_THREAD
mtx_lock(&render_virgl_internal.dispatch_mutex);
#endif
}
static inline void
render_virgl_unlock_dispatch(void)
{
#ifdef ENABLE_RENDER_SERVER_WORKER_THREAD
mtx_unlock(&render_virgl_internal.dispatch_mutex);
#endif
}
#endif /* RENDER_VIRGL_H */
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