src/gallium/state_trackers/xa/xa_tracker.c

   1 /**********************************************************
   2  * Copyright 2009-2011 VMware, Inc. All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  *********************************************************
  25  * Authors:
  26  * Thomas Hellstrom <thellstrom-at-vmware-dot-com>
  27  */
  28
  29 #include <unistd.h>
  30 #include <fcntl.h>
  31 #include "xa_tracker.h"
  32 #include "xa_priv.h"
  33 #include "pipe/p_state.h"
  34 #include "pipe/p_format.h"
  35 #include "pipe-loader/pipe_loader.h"
  36 #include "state_tracker/drm_driver.h"
  37 #include "util/u_inlines.h"
  38
  39 /*
  40  * format_map [xa_surface_type][first..last in list].
  41  * Needs to be updated when enum xa_formats is updated.
  42  */
  43
  44 static const enum xa_formats preferred_a[] = { xa_format_a8 };
  45
  46 static const enum xa_formats preferred_argb[] =
  47     { xa_format_a8r8g8b8, xa_format_x8r8g8b8, xa_format_r5g6b5,
  48     xa_format_x1r5g5b5
  49 };
  50 static const enum xa_formats preferred_z[] =
  51     { xa_format_z32, xa_format_z24, xa_format_z16 };
  52 static const enum xa_formats preferred_sz[] =
  53     { xa_format_x8z24, xa_format_s8z24 };
  54 static const enum xa_formats preferred_zs[] =
  55     { xa_format_z24x8, xa_format_z24s8 };
  56 static const enum xa_formats preferred_yuv[] = { xa_format_yuv8 };
  57
  58 static const enum xa_formats *preferred[] =
  59     { NULL, preferred_a, preferred_argb, NULL, NULL,
  60     preferred_z, preferred_zs, preferred_sz, preferred_yuv
  61 };
  62
  63 static const unsigned int num_preferred[] = { 0,
  64     sizeof(preferred_a) / sizeof(enum xa_formats),
  65     sizeof(preferred_argb) / sizeof(enum xa_formats),
  66     0,
  67     0,
  68     sizeof(preferred_z) / sizeof(enum xa_formats),
  69     sizeof(preferred_zs) / sizeof(enum xa_formats),
  70     sizeof(preferred_sz) / sizeof(enum xa_formats),
  71     sizeof(preferred_yuv) / sizeof(enum xa_formats)
  72 };
  73
  74 static const unsigned int stype_bind[XA_LAST_SURFACE_TYPE] = { 0,
  75     PIPE_BIND_SAMPLER_VIEW,
  76     PIPE_BIND_SAMPLER_VIEW,
  77     PIPE_BIND_SAMPLER_VIEW,
  78     PIPE_BIND_SAMPLER_VIEW,
  79     PIPE_BIND_DEPTH_STENCIL,
  80     PIPE_BIND_DEPTH_STENCIL,
  81     PIPE_BIND_DEPTH_STENCIL,
  82     PIPE_BIND_SAMPLER_VIEW
  83 };
  84
  85 static struct xa_format_descriptor
  86 xa_get_pipe_format(struct xa_tracker *xa, enum xa_formats xa_format)
  87 {
  88     struct xa_format_descriptor fdesc;
  89
  90     fdesc.xa_format = xa_format;
  91
  92     switch (xa_format) {
  93     case xa_format_a8r8g8b8:
  94         fdesc.format = PIPE_FORMAT_B8G8R8A8_UNORM;
  95         break;
  96     case xa_format_x8r8g8b8:
  97         fdesc.format = PIPE_FORMAT_B8G8R8X8_UNORM;
  98         break;
  99     case xa_format_r5g6b5:
 100         fdesc.format = PIPE_FORMAT_B5G6R5_UNORM;
 101         break;
 102     case xa_format_x1r5g5b5:
 103         fdesc.format = PIPE_FORMAT_B5G5R5A1_UNORM;
 104         break;
 105     case xa_format_a8:
 106         if (xa->screen->is_format_supported(xa->screen, PIPE_FORMAT_R8_UNORM,
 107                                             PIPE_TEXTURE_2D, 0,
 108                                             stype_bind[xa_type_a] |
 109                                             PIPE_BIND_RENDER_TARGET))
 110             fdesc.format = PIPE_FORMAT_R8_UNORM;
 111         else
 112             fdesc.format = PIPE_FORMAT_L8_UNORM;
 113         break;
 114     case xa_format_z24:
 115         fdesc.format = PIPE_FORMAT_Z24X8_UNORM;
 116         break;
 117     case xa_format_z16:
 118         fdesc.format = PIPE_FORMAT_Z16_UNORM;
 119         break;
 120     case xa_format_z32:
 121         fdesc.format = PIPE_FORMAT_Z32_UNORM;
 122         break;
 123     case xa_format_x8z24:
 124         fdesc.format = PIPE_FORMAT_Z24X8_UNORM;
 125         break;
 126     case xa_format_z24x8:
 127         fdesc.format = PIPE_FORMAT_X8Z24_UNORM;
 128         break;
 129     case xa_format_s8z24:
 130         fdesc.format = PIPE_FORMAT_Z24_UNORM_S8_UINT;
 131         break;
 132     case xa_format_z24s8:
 133         fdesc.format = PIPE_FORMAT_S8_UINT_Z24_UNORM;
 134         break;
 135     case xa_format_yuv8:
 136         if (xa->screen->is_format_supported(xa->screen, PIPE_FORMAT_R8_UNORM,
 137                                             PIPE_TEXTURE_2D, 0,
 138                                             stype_bind[xa_type_yuv_component]))
 139             fdesc.format = PIPE_FORMAT_R8_UNORM;
 140         else
 141             fdesc.format = PIPE_FORMAT_L8_UNORM;
 142         break;
 143     default:
 144         fdesc.xa_format = xa_format_unknown;
 145         break;
 146     }
 147     return fdesc;
 148 }
 149
 150 XA_EXPORT struct xa_tracker *
 151 xa_tracker_create(int drm_fd)
 152 {
 153     struct xa_tracker *xa = calloc(1, sizeof(struct xa_tracker));
 154     enum xa_surface_type stype;
 155     unsigned int num_formats;
 156     int fd;
 157
 158     if (!xa)
 159         return NULL;
 160
 161     if (drm_fd < 0 || (fd = fcntl(drm_fd, F_DUPFD_CLOEXEC, 3)) < 0)
 162         goto out_no_fd;
 163
 164     if (pipe_loader_drm_probe_fd(&xa->dev, fd))
 165         xa->screen = pipe_loader_create_screen(xa->dev);
 166
 167     if (!xa->screen)
 168         goto out_no_screen;
 169
 170     xa->default_ctx = xa_context_create(xa);
 171     if (!xa->default_ctx)
 172         goto out_no_pipe;
 173
 174     num_formats = 0;
 175     for (stype = 0; stype < XA_LAST_SURFACE_TYPE; ++stype)
 176         num_formats += num_preferred[stype];
 177
 178     num_formats += 1;
 179     xa->supported_formats = calloc(num_formats, sizeof(*xa->supported_formats));
 180     if (!xa->supported_formats)
 181         goto out_sf_alloc_fail;
 182
 183     xa->supported_formats[0] = xa_format_unknown;
 184     num_formats = 1;
 185     memset(xa->format_map, 0, sizeof(xa->format_map));
 186
 187     for (stype = 0; stype < XA_LAST_SURFACE_TYPE; ++stype) {
 188         unsigned int bind = stype_bind[stype];
 189         enum xa_formats xa_format;
 190         int i;
 191
 192         for (i = 0; i < num_preferred[stype]; ++i) {
 193             xa_format = preferred[stype][i];
 194
 195             struct xa_format_descriptor fdesc =
 196                 xa_get_pipe_format(xa, xa_format);
 197
 198             if (xa->screen->is_format_supported(xa->screen, fdesc.format,
 199                                                 PIPE_TEXTURE_2D, 0, bind)) {
 200                 if (xa->format_map[stype][0] == 0)
 201                     xa->format_map[stype][0] = num_formats;
 202                 xa->format_map[stype][1] = num_formats;
 203                 xa->supported_formats[num_formats++] = xa_format;
 204             }
 205         }
 206     }
 207     return xa;
 208
 209  out_sf_alloc_fail:
 210     xa_context_destroy(xa->default_ctx);
 211  out_no_pipe:
 212     xa->screen->destroy(xa->screen);
 213  out_no_screen:
 214     if (xa->dev)
 215         pipe_loader_release(&xa->dev, 1);
 216     else
 217         close(fd);
 218  out_no_fd:
 219     free(xa);
 220     return NULL;
 221 }
 222
 223 XA_EXPORT void
 224 xa_tracker_destroy(struct xa_tracker *xa)
 225 {
 226     free(xa->supported_formats);
 227     xa_context_destroy(xa->default_ctx);
 228     xa->screen->destroy(xa->screen);
 229     pipe_loader_release(&xa->dev, 1);
 230     free(xa);
 231 }
 232
 233 static int
 234 xa_flags_compat(unsigned int old_flags, unsigned int new_flags)
 235 {
 236     unsigned int flag_diff = (old_flags ^ new_flags);
 237
 238     if (flag_diff == 0)
 239         return 1;
 240
 241     if (flag_diff & XA_FLAG_SHARED)
 242         return 0;
 243     /*
 244      * Don't recreate if we're dropping the render target flag.
 245      */
 246     if (flag_diff & XA_FLAG_RENDER_TARGET)
 247         return ((new_flags & XA_FLAG_RENDER_TARGET) == 0);
 248
 249     /*
 250      * Don't recreate if we're dropping the scanout flag.
 251      */
 252     if (flag_diff & XA_FLAG_SCANOUT)
 253         return ((new_flags & XA_FLAG_SCANOUT) == 0);
 254
 255     /*
 256      * Always recreate for unknown / unimplemented flags.
 257      */
 258     return 0;
 259 }
 260
 261 static struct xa_format_descriptor
 262 xa_get_format_stype_depth(struct xa_tracker *xa,
 263                           enum xa_surface_type stype, unsigned int depth)
 264 {
 265     unsigned int i;
 266     struct xa_format_descriptor fdesc;
 267     int found = 0;
 268
 269     for (i = xa->format_map[stype][0]; i <= xa->format_map[stype][1]; ++i) {
 270         fdesc = xa_get_pipe_format(xa, xa->supported_formats[i]);
 271         if (fdesc.xa_format != xa_format_unknown &&
 272             xa_format_depth(fdesc.xa_format) == depth) {
 273             found = 1;
 274             break;
 275         }
 276     }
 277
 278     if (!found)
 279         fdesc.xa_format = xa_format_unknown;
 280
 281     return fdesc;
 282 }
 283
 284 XA_EXPORT int
 285 xa_format_check_supported(struct xa_tracker *xa,
 286                           enum xa_formats xa_format, unsigned int flags)
 287 {
 288     struct xa_format_descriptor fdesc = xa_get_pipe_format(xa, xa_format);
 289     unsigned int bind;
 290
 291     if (fdesc.xa_format == xa_format_unknown)
 292         return -XA_ERR_INVAL;
 293
 294     bind = stype_bind[xa_format_type(fdesc.xa_format)];
 295     if (flags & XA_FLAG_SHARED)
 296         bind |= PIPE_BIND_SHARED;
 297     if (flags & XA_FLAG_RENDER_TARGET)
 298         bind |= PIPE_BIND_RENDER_TARGET;
 299     if (flags & XA_FLAG_SCANOUT)
 300         bind |= PIPE_BIND_SCANOUT;
 301
 302     if (!xa->screen->is_format_supported(xa->screen, fdesc.format,
 303                                          PIPE_TEXTURE_2D, 0, bind))
 304         return -XA_ERR_INVAL;
 305
 306     return XA_ERR_NONE;
 307 }
 308
 309 static unsigned
 310 handle_type(enum xa_handle_type type)
 311 {
 312     switch (type) {
 313     case xa_handle_type_kms:
 314         return DRM_API_HANDLE_TYPE_KMS;
 315     case xa_handle_type_fd:
 316         return DRM_API_HANDLE_TYPE_FD;
 317     case xa_handle_type_shared:
 318     default:
 319         return DRM_API_HANDLE_TYPE_SHARED;
 320     }
 321 }
 322
 323 static struct xa_surface *
 324 surface_create(struct xa_tracker *xa,
 325                   int width,
 326                   int height,
 327                   int depth,
 328                   enum xa_surface_type stype,
 329                   enum xa_formats xa_format, unsigned int flags,
 330                   struct winsys_handle *whandle)
 331 {
 332     struct pipe_resource *template;
 333     struct xa_surface *srf;
 334     struct xa_format_descriptor fdesc;
 335
 336     if (xa_format == xa_format_unknown)
 337         fdesc = xa_get_format_stype_depth(xa, stype, depth);
 338     else
 339         fdesc = xa_get_pipe_format(xa, xa_format);
 340
 341     if (fdesc.xa_format == xa_format_unknown)
 342         return NULL;
 343
 344     srf = calloc(1, sizeof(*srf));
 345     if (!srf)
 346         return NULL;
 347
 348     template = &srf->template;
 349     template->format = fdesc.format;
 350     template->target = PIPE_TEXTURE_2D;
 351     template->width0 = width;
 352     template->height0 = height;
 353     template->depth0 = 1;
 354     template->array_size = 1;
 355     template->last_level = 0;
 356     template->bind = stype_bind[xa_format_type(fdesc.xa_format)];
 357
 358     if (flags & XA_FLAG_SHARED)
 359         template->bind |= PIPE_BIND_SHARED;
 360     if (flags & XA_FLAG_RENDER_TARGET)
 361         template->bind |= PIPE_BIND_RENDER_TARGET;
 362     if (flags & XA_FLAG_SCANOUT)
 363         template->bind |= PIPE_BIND_SCANOUT;
 364
 365     if (whandle)
 366         srf->tex = xa->screen->resource_from_handle(xa->screen, template, whandle,
 367                                                     PIPE_HANDLE_USAGE_READ_WRITE);
 368     else
 369         srf->tex = xa->screen->resource_create(xa->screen, template);
 370     if (!srf->tex)
 371         goto out_no_tex;
 372
 373     srf->refcount = 1;
 374     srf->xa = xa;
 375     srf->flags = flags;
 376     srf->fdesc = fdesc;
 377
 378     return srf;
 379  out_no_tex:
 380     free(srf);
 381     return NULL;
 382 }
 383
 384
 385 XA_EXPORT struct xa_surface *
 386 xa_surface_create(struct xa_tracker *xa,
 387                   int width,
 388                   int height,
 389                   int depth,
 390                   enum xa_surface_type stype,
 391                   enum xa_formats xa_format, unsigned int flags)
 392 {
 393     return surface_create(xa, width, height, depth, stype, xa_format, flags, NULL);
 394 }
 395
 396
 397 XA_EXPORT struct xa_surface *
 398 xa_surface_from_handle(struct xa_tracker *xa,
 399                   int width,
 400                   int height,
 401                   int depth,
 402                   enum xa_surface_type stype,
 403                   enum xa_formats xa_format, unsigned int flags,
 404                   uint32_t handle, uint32_t stride)
 405 {
 406     return xa_surface_from_handle2(xa, width, height, depth, stype, xa_format,
 407                                    DRM_API_HANDLE_TYPE_SHARED, flags, handle,
 408                                    stride);
 409 }
 410
 411 XA_EXPORT struct xa_surface *
 412 xa_surface_from_handle2(struct xa_tracker *xa,
 413                         int width,
 414                         int height,
 415                         int depth,
 416                         enum xa_surface_type stype,
 417                         enum xa_formats xa_format, unsigned int flags,
 418                         enum xa_handle_type type,
 419                         uint32_t handle, uint32_t stride)
 420 {
 421     struct winsys_handle whandle;
 422     memset(&whandle, 0, sizeof(whandle));
 423     whandle.type = handle_type(type);
 424     whandle.handle = handle;
 425     whandle.stride = stride;
 426     return surface_create(xa, width, height, depth, stype, xa_format, flags, &whandle);
 427 }
 428
 429 XA_EXPORT int
 430 xa_surface_redefine(struct xa_surface *srf,
 431                     int width,
 432                     int height,
 433                     int depth,
 434                     enum xa_surface_type stype,
 435                     enum xa_formats xa_format,
 436                     unsigned int new_flags,
 437                     int copy_contents)
 438 {
 439     struct pipe_resource *template = &srf->template;
 440     struct pipe_resource *texture;
 441     struct pipe_box src_box;
 442     struct xa_tracker *xa = srf->xa;
 443     int save_width;
 444     int save_height;
 445     unsigned int save_format;
 446     struct xa_format_descriptor fdesc;
 447
 448
 449     if (xa_format == xa_format_unknown)
 450         fdesc = xa_get_format_stype_depth(xa, stype, depth);
 451     else
 452         fdesc = xa_get_pipe_format(xa, xa_format);
 453
 454     if (width == template->width0 && height == template->height0 &&
 455         template->format == fdesc.format &&
 456         xa_flags_compat(srf->flags, new_flags))
 457         return XA_ERR_NONE;
 458
 459     template->bind = stype_bind[xa_format_type(fdesc.xa_format)];
 460     if (new_flags & XA_FLAG_SHARED)
 461         template->bind |= PIPE_BIND_SHARED;
 462     if (new_flags & XA_FLAG_RENDER_TARGET)
 463         template->bind |= PIPE_BIND_RENDER_TARGET;
 464     if (new_flags & XA_FLAG_SCANOUT)
 465         template->bind |= PIPE_BIND_SCANOUT;
 466
 467     if (copy_contents) {
 468         if (!xa_format_type_is_color(fdesc.xa_format) ||
 469             xa_format_type(fdesc.xa_format) == xa_type_a)
 470             return -XA_ERR_INVAL;
 471
 472         if (!xa->screen->is_format_supported(xa->screen, fdesc.format,
 473                                              PIPE_TEXTURE_2D, 0,
 474                                              template->bind |
 475                                              PIPE_BIND_RENDER_TARGET))
 476             return -XA_ERR_INVAL;
 477     }
 478
 479     save_width = template->width0;
 480     save_height = template->height0;
 481     save_format = template->format;
 482
 483     template->width0 = width;
 484     template->height0 = height;
 485     template->format = fdesc.format;
 486
 487     texture = xa->screen->resource_create(xa->screen, template);
 488     if (!texture) {
 489         template->width0 = save_width;
 490         template->height0 = save_height;
 491         template->format = save_format;
 492         return -XA_ERR_NORES;
 493     }
 494
 495     if (copy_contents) {
 496         struct pipe_context *pipe = xa->default_ctx->pipe;
 497
 498         u_box_origin_2d(xa_min(save_width, template->width0),
 499                         xa_min(save_height, template->height0), &src_box);
 500         pipe->resource_copy_region(pipe, texture,
 501                                    0, 0, 0, 0, srf->tex, 0, &src_box);
 502         xa_context_flush(xa->default_ctx);
 503     }
 504
 505     pipe_resource_reference(&srf->tex, texture);
 506     pipe_resource_reference(&texture, NULL);
 507     srf->fdesc = fdesc;
 508     srf->flags = new_flags;
 509
 510     return XA_ERR_NONE;
 511 }
 512
 513 XA_EXPORT struct xa_surface*
 514 xa_surface_ref(struct xa_surface *srf)
 515 {
 516     if (srf == NULL) {
 517         return NULL;
 518     }
 519     srf->refcount++;
 520     return srf;
 521 }
 522
 523 XA_EXPORT void
 524 xa_surface_unref(struct xa_surface *srf)
 525 {
 526     if (srf == NULL || --srf->refcount) {
 527         return;
 528     }
 529     pipe_resource_reference(&srf->tex, NULL);
 530     free(srf);
 531 }
 532
 533 XA_EXPORT void
 534 xa_tracker_version(int *major, int *minor, int *patch)
 535 {
 536     *major = XA_TRACKER_VERSION_MAJOR;
 537     *minor = XA_TRACKER_VERSION_MINOR;
 538     *patch = XA_TRACKER_VERSION_PATCH;
 539 }
 540
 541 XA_EXPORT int
 542 xa_surface_handle(struct xa_surface *srf,
 543                   enum xa_handle_type type,
 544                   uint32_t * handle, unsigned int *stride)
 545 {
 546     struct winsys_handle whandle;
 547
 548     struct pipe_screen *screen = srf->xa->screen;
 549     boolean res;
 550
 551     memset(&whandle, 0, sizeof(whandle));
 552     whandle.type = handle_type(type);
 553     res = screen->resource_get_handle(screen, srf->xa->default_ctx->pipe,
 554                                       srf->tex, &whandle,
 555                                       PIPE_HANDLE_USAGE_READ_WRITE);
 556     if (!res)
 557         return -XA_ERR_INVAL;
 558
 559     *handle = whandle.handle;
 560     *stride = whandle.stride;
 561
 562     return XA_ERR_NONE;
 563 }
 564
 565 XA_EXPORT enum xa_formats
 566 xa_surface_format(const struct xa_surface *srf)
 567 {
 568     return srf->fdesc.xa_format;
 569 }