1/**************************************************************************
2 *
3 * Copyright 2012 Francisco Jerez
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#include "pipe_loader_priv.h"
29
30#include "util/u_memory.h"
31#include "util/u_dl.h"
32#include "sw/null/null_sw_winsys.h"
33#include "target-helpers/inline_sw_helper.h"
34#include "state_tracker/xlib_sw_winsys.h"
35
36struct pipe_loader_sw_device {
37   struct pipe_loader_device base;
38   struct util_dl_library *lib;
39   struct sw_winsys *ws;
40};
41
42#define pipe_loader_sw_device(dev) ((struct pipe_loader_sw_device *)dev)
43
44static struct pipe_loader_ops pipe_loader_sw_ops;
45
46static struct sw_winsys *(*backends[])() = {
47#ifdef HAVE_WINSYS_XLIB
48   x11_sw_create,
49#endif
50   null_sw_create
51};
52
53int
54pipe_loader_sw_probe(struct pipe_loader_device **devs, int ndev)
55{
56   int i;
57
58   for (i = 0; i < Elements(backends); i++) {
59      if (i < ndev) {
60         struct pipe_loader_sw_device *sdev = CALLOC_STRUCT(pipe_loader_sw_device);
61
62         sdev->base.type = PIPE_LOADER_DEVICE_SOFTWARE;
63         sdev->base.driver_name = "swrast";
64         sdev->base.ops = &pipe_loader_sw_ops;
65         sdev->ws = backends[i]();
66         devs[i] = &sdev->base;
67      }
68   }
69
70   return i;
71}
72
73static void
74pipe_loader_sw_release(struct pipe_loader_device **dev)
75{
76   struct pipe_loader_sw_device *sdev = pipe_loader_sw_device(*dev);
77
78   if (sdev->lib)
79      util_dl_close(sdev->lib);
80
81   FREE(sdev);
82   *dev = NULL;
83}
84
85static struct pipe_screen *
86pipe_loader_sw_create_screen(struct pipe_loader_device *dev,
87                             const char *library_paths)
88{
89   struct pipe_loader_sw_device *sdev = pipe_loader_sw_device(dev);
90   struct pipe_screen *(*init)(struct sw_winsys *);
91
92   if (!sdev->lib)
93      sdev->lib = pipe_loader_find_module(dev, library_paths);
94   if (!sdev->lib)
95      return NULL;
96
97   init = (void *)util_dl_get_proc_address(sdev->lib, "swrast_create_screen");
98   if (!init)
99      return NULL;
100
101   return init(sdev->ws);
102}
103
104static struct pipe_loader_ops pipe_loader_sw_ops = {
105   .create_screen = pipe_loader_sw_create_screen,
106   .release = pipe_loader_sw_release
107};
108