asdk-libdrm

/*

 * Copyright © 2011 Red Hat

 *

 * 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.

 *

 * Authors:

 *    Jerome Glisse <j.glisse@gmail.com>

 */

#define _FILE_OFFSET_BITS 64

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <sys/mman.h>

#include <errno.h>

#include "xf86drm.h"

#include "radeon_drm.h"

#include "rbo.h"

​

struct rbo *rbo(int fd, unsigned handle, unsigned size,

                unsigned alignment, void *ptr)

{

    struct rbo *bo;

    int r;

​

    bo = calloc(1, sizeof(*bo));

    if (bo == NULL) {

        return NULL;

    }

    list_inithead(&bo->list);

    bo->fd = fd;

    bo->size = size;

    bo->handle = handle;

    bo->refcount = 1;

    bo->alignment = alignment;

​

    if (handle) {

        struct drm_gem_open open_arg;

​

        memset(&open_arg, 0, sizeof(open_arg));

        open_arg.name = handle;

        r = drmIoctl(fd, DRM_IOCTL_GEM_OPEN, &open_arg);

        if (r != 0) {

            free(bo);

            return NULL;

        }

        bo->handle = open_arg.handle;