/*
 * Copyright © 2014 Broadcom
 *
 * 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, sublicense,
 * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS 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.
 */

#ifndef VC4_BUFMGR_H
#define VC4_BUFMGR_H

#include <stdint.h>
#include "util/u_inlines.h"

struct vc4_context;

struct vc4_bo {
        struct pipe_reference reference;
        struct vc4_screen *screen;
        void *map;
        const char *name;
        uint32_t handle;
        uint32_t size;

#ifdef USE_VC4_SIMULATOR
        void *simulator_winsys_map;
        uint32_t simulator_winsys_stride;
#endif
};

struct vc4_bo *vc4_bo_alloc(struct vc4_screen *screen, uint32_t size,
                            const char *name);
struct vc4_bo *vc4_bo_alloc_mem(struct vc4_screen *screen, const void *data,
                                uint32_t size, const char *name);
void vc4_bo_free(struct vc4_bo *bo);
struct vc4_bo *vc4_bo_open_name(struct vc4_screen *screen, uint32_t name,
                                uint32_t winsys_stride);
bool vc4_bo_flink(struct vc4_bo *bo, uint32_t *name);

static inline void
vc4_bo_set_reference(struct vc4_bo **old_bo, struct vc4_bo *new_bo)
{
        if (pipe_reference(&(*old_bo)->reference, &new_bo->reference))
                vc4_bo_free(*old_bo);
        *old_bo = new_bo;
}

static inline struct vc4_bo *
vc4_bo_reference(struct vc4_bo *bo)
{
        pipe_reference(NULL, &bo->reference);
        return bo;
}

static inline void
vc4_bo_unreference(struct vc4_bo **bo)
{
        if (!*bo)
                return;

        if (pipe_reference(&(*bo)->reference, NULL))
                vc4_bo_free(*bo);
        *bo = NULL;
}

void *
vc4_bo_map(struct vc4_bo *bo);

void *
vc4_bo_map_unsynchronized(struct vc4_bo *bo);

bool
vc4_bo_wait(struct vc4_bo *bo, uint64_t timeout_ns);

bool
vc4_wait_seqno(struct vc4_screen *screen, uint64_t seqno, uint64_t timeout_ns);

#endif /* VC4_BUFMGR_H */