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/sw_helper_public.h"
  37 #include "state_tracker/drisw_api.h"
  38 #include "state_tracker/sw_driver.h"
  39 #include "state_tracker/sw_winsys.h"
  40
  41 struct pipe_loader_sw_device {
  42    struct pipe_loader_device base;
  43    const struct sw_driver_descriptor *dd;
  44 #ifndef GALLIUM_STATIC_TARGETS
  45    struct util_dl_library *lib;
  46 #endif
  47    struct sw_winsys *ws;
  48 };
  49
  50 #define pipe_loader_sw_device(dev) ((struct pipe_loader_sw_device *)dev)
  51
  52 static const struct pipe_loader_ops pipe_loader_sw_ops;
  53
  54 #ifdef GALLIUM_STATIC_TARGETS
  55 static const struct sw_driver_descriptor driver_descriptors = {
  56    .create_screen = sw_screen_create,
  57    .winsys = {
  58 #ifdef HAVE_PIPE_LOADER_DRI
  59       {
  60          .name = "dri",
  61          .create_winsys = dri_create_sw_winsys,
  62       },
  63 #endif
  64 #ifdef HAVE_PIPE_LOADER_KMS
  65       {
  66          .name = "kms_dri",
  67          .create_winsys = kms_dri_create_winsys,
  68       },
  69 #endif
  70 /**
  71  * XXX: Do not include these two for non autotools builds.
  72  * They don't have neither opencl nor nine, where these are used.
  73  */
  74 #ifndef DROP_PIPE_LOADER_MISC
  75       {
  76          .name = "null",
  77          .create_winsys = null_sw_create,
  78       },
  79       {
  80          .name = "wrapped",
  81          .create_winsys = wrapper_sw_winsys_wrap_pipe_screen,
  82       },
  83 #endif
  84       { 0 },
  85    }
  86 };
  87 #endif
  88
  89 static bool
  90 pipe_loader_sw_probe_init_common(struct pipe_loader_sw_device *sdev)
  91 {
  92    sdev->base.type = PIPE_LOADER_DEVICE_SOFTWARE;
  93    sdev->base.driver_name = "swrast";
  94    sdev->base.ops = &pipe_loader_sw_ops;
  95
  96 #ifdef GALLIUM_STATIC_TARGETS
  97    sdev->dd = &driver_descriptors;
  98    if (!sdev->dd)
  99       return false;
 100 #else
 101    sdev->lib = pipe_loader_find_module(&sdev->base, PIPE_SEARCH_DIR);
 102    if (!sdev->lib)
 103       return false;
 104
 105    sdev->dd = (const struct sw_driver_descriptor *)
 106       util_dl_get_proc_address(sdev->lib, "swrast_driver_descriptor");
 107
 108    if (!sdev->dd){
 109       util_dl_close(sdev->lib);
 110       sdev->lib = NULL;
 111       return false;
 112    }
 113 #endif
 114
 115    return true;
 116 }
 117
 118 static void
 119 pipe_loader_sw_probe_teardown_common(struct pipe_loader_sw_device *sdev)
 120 {
 121 #ifndef GALLIUM_STATIC_TARGETS
 122    if (sdev->lib)
 123       util_dl_close(sdev->lib);
 124 #endif
 125 }
 126
 127 #ifdef HAVE_PIPE_LOADER_DRI
 128 bool
 129 pipe_loader_sw_probe_dri(struct pipe_loader_device **devs, struct drisw_loader_funcs *drisw_lf)
 130 {
 131    struct pipe_loader_sw_device *sdev = CALLOC_STRUCT(pipe_loader_sw_device);
 132    int i;
 133
 134    if (!sdev)
 135       return false;
 136
 137    if (!pipe_loader_sw_probe_init_common(sdev))
 138       goto fail;
 139
 140    for (i = 0; sdev->dd->winsys[i].name; i++) {
 141       if (strcmp(sdev->dd->winsys[i].name, "dri") == 0) {
 142          sdev->ws = sdev->dd->winsys[i].create_winsys(drisw_lf);
 143          break;
 144       }
 145    }
 146    if (!sdev->ws)
 147       goto fail;
 148
 149    *devs = &sdev->base;
 150    return true;
 151
 152 fail:
 153    pipe_loader_sw_probe_teardown_common(sdev);
 154    FREE(sdev);
 155    return false;
 156 }
 157 #endif
 158
 159 #ifdef HAVE_PIPE_LOADER_KMS
 160 bool
 161 pipe_loader_sw_probe_kms(struct pipe_loader_device **devs, int fd)
 162 {
 163    struct pipe_loader_sw_device *sdev = CALLOC_STRUCT(pipe_loader_sw_device);
 164    int i;
 165
 166    if (!sdev)
 167       return false;
 168
 169    if (!pipe_loader_sw_probe_init_common(sdev))
 170       goto fail;
 171
 172    for (i = 0; sdev->dd->winsys[i].name; i++) {
 173       if (strcmp(sdev->dd->winsys[i].name, "kms_dri") == 0) {
 174          sdev->ws = sdev->dd->winsys[i].create_winsys(fd);
 175          break;
 176       }
 177    }
 178    if (!sdev->ws)
 179       goto fail;
 180
 181    *devs = &sdev->base;
 182    return true;
 183
 184 fail:
 185    pipe_loader_sw_probe_teardown_common(sdev);
 186    FREE(sdev);
 187    return false;
 188 }
 189 #endif
 190
 191 bool
 192 pipe_loader_sw_probe_null(struct pipe_loader_device **devs)
 193 {
 194    struct pipe_loader_sw_device *sdev = CALLOC_STRUCT(pipe_loader_sw_device);
 195    int i;
 196
 197    if (!sdev)
 198       return false;
 199
 200    if (!pipe_loader_sw_probe_init_common(sdev))
 201       goto fail;
 202
 203    for (i = 0; sdev->dd->winsys[i].name; i++) {
 204       if (strcmp(sdev->dd->winsys[i].name, "null") == 0) {
 205          sdev->ws = sdev->dd->winsys[i].create_winsys();
 206          break;
 207       }
 208    }
 209    if (!sdev->ws)
 210       goto fail;
 211
 212    *devs = &sdev->base;
 213    return true;
 214
 215 fail:
 216    pipe_loader_sw_probe_teardown_common(sdev);
 217    FREE(sdev);
 218    return false;
 219 }
 220
 221 int
 222 pipe_loader_sw_probe(struct pipe_loader_device **devs, int ndev)
 223 {
 224    int i = 1;
 225
 226    if (i <= ndev) {
 227       if (!pipe_loader_sw_probe_null(devs)) {
 228          i--;
 229       }
 230    }
 231
 232    return i;
 233 }
 234
 235 boolean
 236 pipe_loader_sw_probe_wrapped(struct pipe_loader_device **dev,
 237                              struct pipe_screen *screen)
 238 {
 239    struct pipe_loader_sw_device *sdev = CALLOC_STRUCT(pipe_loader_sw_device);
 240    int i;
 241
 242    if (!sdev)
 243       return false;
 244
 245    if (!pipe_loader_sw_probe_init_common(sdev))
 246       goto fail;
 247
 248    for (i = 0; sdev->dd->winsys[i].name; i++) {
 249       if (strcmp(sdev->dd->winsys[i].name, "wrapped") == 0) {
 250          sdev->ws = sdev->dd->winsys[i].create_winsys(screen);
 251          break;
 252       }
 253    }
 254    if (!sdev->ws)
 255       goto fail;
 256
 257    *dev = &sdev->base;
 258    return true;
 259
 260 fail:
 261    pipe_loader_sw_probe_teardown_common(sdev);
 262    FREE(sdev);
 263    return false;
 264 }
 265
 266 static void
 267 pipe_loader_sw_release(struct pipe_loader_device **dev)
 268 {
 269    struct pipe_loader_sw_device *sdev = pipe_loader_sw_device(*dev);
 270
 271 #ifndef GALLIUM_STATIC_TARGETS
 272    if (sdev->lib)
 273       util_dl_close(sdev->lib);
 274 #endif
 275
 276    FREE(sdev);
 277    *dev = NULL;
 278 }
 279
 280 static const struct drm_conf_ret *
 281 pipe_loader_sw_configuration(struct pipe_loader_device *dev,
 282                              enum drm_conf conf)
 283 {
 284    return NULL;
 285 }
 286
 287 static struct pipe_screen *
 288 pipe_loader_sw_create_screen(struct pipe_loader_device *dev)
 289 {
 290    struct pipe_loader_sw_device *sdev = pipe_loader_sw_device(dev);
 291    struct pipe_screen *screen;
 292
 293    screen = sdev->dd->create_screen(sdev->ws);
 294    if (!screen)
 295       sdev->ws->destroy(sdev->ws);
 296
 297    return screen;
 298 }
 299
 300 static const struct pipe_loader_ops pipe_loader_sw_ops = {
 301    .create_screen = pipe_loader_sw_create_screen,
 302    .configuration = pipe_loader_sw_configuration,
 303    .release = pipe_loader_sw_release
 304 };