src/gallium/auxiliary/pipe-loader/pipe_loader_sw.c

   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 VMWARE 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/dri/dri_sw_winsys.h"
  33 #include "sw/kms-dri/kms_dri_sw_winsys.h"
  34 #include "sw/null/null_sw_winsys.h"
  35 #include "sw/wrapper/wrapper_sw_winsys.h"
  36 #include "target-helpers/inline_sw_helper.h"
  37 #include "state_tracker/drisw_api.h"
  38
  39 struct pipe_loader_sw_device {
  40    struct pipe_loader_device base;
  41    struct util_dl_library *lib;
  42    struct sw_winsys *ws;
  43 };
  44
  45 #define pipe_loader_sw_device(dev) ((struct pipe_loader_sw_device *)dev)
  46
  47 static struct pipe_loader_ops pipe_loader_sw_ops;
  48
  49 static struct sw_winsys *(*backends[])() = {
  50    null_sw_create
  51 };
  52
  53 #ifdef HAVE_PIPE_LOADER_DRI
  54 bool
  55 pipe_loader_sw_probe_dri(struct pipe_loader_device **devs, struct drisw_loader_funcs *drisw_lf)
  56 {
  57    struct pipe_loader_sw_device *sdev = CALLOC_STRUCT(pipe_loader_sw_device);
  58
  59    if (!sdev)
  60       return false;
  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 = dri_create_sw_winsys(drisw_lf);
  66    if (!sdev->ws) {
  67       FREE(sdev);
  68       return false;
  69    }
  70    *devs = &sdev->base;
  71
  72    return true;
  73 }
  74 #endif
  75
  76 #ifdef HAVE_PIPE_LOADER_KMS
  77 bool
  78 pipe_loader_sw_probe_kms(struct pipe_loader_device **devs, int fd)
  79 {
  80    struct pipe_loader_sw_device *sdev = CALLOC_STRUCT(pipe_loader_sw_device);
  81
  82    if (!sdev)
  83       return false;
  84
  85    sdev->base.type = PIPE_LOADER_DEVICE_SOFTWARE;
  86    sdev->base.driver_name = "swrast";
  87    sdev->base.ops = &pipe_loader_sw_ops;
  88    sdev->ws = kms_dri_create_winsys(fd);
  89    if (!sdev->ws) {
  90       FREE(sdev);
  91       return false;
  92    }
  93    *devs = &sdev->base;
  94
  95    return true;
  96 }
  97 #endif
  98
  99 bool
 100 pipe_loader_sw_probe_null(struct pipe_loader_device **devs)
 101 {
 102    struct pipe_loader_sw_device *sdev = CALLOC_STRUCT(pipe_loader_sw_device);
 103
 104    if (!sdev)
 105       return false;
 106
 107    sdev->base.type = PIPE_LOADER_DEVICE_SOFTWARE;
 108    sdev->base.driver_name = "swrast";
 109    sdev->base.ops = &pipe_loader_sw_ops;
 110    sdev->ws = null_sw_create();
 111    if (!sdev->ws) {
 112       FREE(sdev);
 113       return false;
 114    }
 115    *devs = &sdev->base;
 116
 117    return true;
 118 }
 119
 120 int
 121 pipe_loader_sw_probe(struct pipe_loader_device **devs, int ndev)
 122 {
 123    int i;
 124
 125    for (i = 0; i < Elements(backends); i++) {
 126       if (i < ndev) {
 127          struct pipe_loader_sw_device *sdev = CALLOC_STRUCT(pipe_loader_sw_device);
 128          /* TODO: handle CALLOC_STRUCT failure */
 129
 130          sdev->base.type = PIPE_LOADER_DEVICE_SOFTWARE;
 131          sdev->base.driver_name = "swrast";
 132          sdev->base.ops = &pipe_loader_sw_ops;
 133          sdev->ws = backends[i]();
 134          devs[i] = &sdev->base;
 135       }
 136    }
 137
 138    return i;
 139 }
 140
 141 boolean
 142 pipe_loader_sw_probe_wrapped(struct pipe_loader_device **dev,
 143                              struct pipe_screen *screen)
 144 {
 145    struct pipe_loader_sw_device *sdev = CALLOC_STRUCT(pipe_loader_sw_device);
 146
 147    if (!sdev)
 148       return false;
 149
 150    sdev->base.type = PIPE_LOADER_DEVICE_SOFTWARE;
 151    sdev->base.driver_name = "swrast";
 152    sdev->base.ops = &pipe_loader_sw_ops;
 153    sdev->ws = wrapper_sw_winsys_wrap_pipe_screen(screen);
 154
 155    if (!sdev->ws) {
 156       FREE(sdev);
 157       return false;
 158    }
 159    *dev = &sdev->base;
 160    return true;
 161 }
 162
 163 static void
 164 pipe_loader_sw_release(struct pipe_loader_device **dev)
 165 {
 166    struct pipe_loader_sw_device *sdev = pipe_loader_sw_device(*dev);
 167
 168    if (sdev->lib)
 169       util_dl_close(sdev->lib);
 170
 171    FREE(sdev);
 172    *dev = NULL;
 173 }
 174
 175 static const struct drm_conf_ret *
 176 pipe_loader_sw_configuration(struct pipe_loader_device *dev,
 177                              enum drm_conf conf)
 178 {
 179    return NULL;
 180 }
 181
 182 static struct pipe_screen *
 183 pipe_loader_sw_create_screen(struct pipe_loader_device *dev)
 184 {
 185    struct pipe_loader_sw_device *sdev = pipe_loader_sw_device(dev);
 186    struct pipe_screen *(*init)(struct sw_winsys *);
 187
 188    if (!sdev->lib)
 189       sdev->lib = pipe_loader_find_module(&sdev->base, PIPE_SEARCH_DIR);
 190    if (!sdev->lib)
 191       return NULL;
 192
 193    init = (void *)util_dl_get_proc_address(sdev->lib, "swrast_create_screen");
 194    if (!init){
 195       util_dl_close(sdev->lib);
 196       sdev->lib = NULL;
 197       return NULL;
 198    }
 199
 200    return init(sdev->ws);
 201 }
 202
 203 static struct pipe_loader_ops pipe_loader_sw_ops = {
 204    .create_screen = pipe_loader_sw_create_screen,
 205    .configuration = pipe_loader_sw_configuration,
 206    .release = pipe_loader_sw_release
 207 };