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