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(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         fdesc.format = PIPE_FORMAT_L8_UNORM;
 106         break;
 107     case xa_format_z24:
 108         fdesc.format = PIPE_FORMAT_Z24X8_UNORM;
 109         break;
 110     case xa_format_z16:
 111         fdesc.format = PIPE_FORMAT_Z16_UNORM;
 112         break;
 113     case xa_format_z32:
 114         fdesc.format = PIPE_FORMAT_Z32_UNORM;
 115         break;
 116     case xa_format_x8z24:
 117         fdesc.format = PIPE_FORMAT_Z24X8_UNORM;
 118         break;
 119     case xa_format_z24x8:
 120         fdesc.format = PIPE_FORMAT_X8Z24_UNORM;
 121         break;
 122     case xa_format_s8z24:
 123         fdesc.format = PIPE_FORMAT_Z24_UNORM_S8_UINT;
 124         break;
 125     case xa_format_z24s8:
 126         fdesc.format = PIPE_FORMAT_S8_UINT_Z24_UNORM;
 127         break;
 128     case xa_format_yuv8:
 129         fdesc.format = PIPE_FORMAT_L8_UNORM;
 130         break;
 131     default:
 132         fdesc.xa_format = xa_format_unknown;
 133         break;
 134     }
 135     return fdesc;
 136 }
 137
 138 XA_EXPORT struct xa_tracker *
 139 xa_tracker_create(int drm_fd)
 140 {
 141     struct xa_tracker *xa = calloc(1, sizeof(struct xa_tracker));
 142     enum xa_surface_type stype;
 143     unsigned int num_formats;
 144     int loader_fd;
 145
 146     if (!xa)
 147         return NULL;
 148
 149 #if GALLIUM_STATIC_TARGETS
 150     xa->screen = dd_create_screen(drm_fd);
 151     (void) loader_fd; /* silence unused var warning */
 152 #else
 153     loader_fd = dup(drm_fd);
 154     if (loader_fd == -1)
 155         return NULL;
 156     if (pipe_loader_drm_probe_fd(&xa->dev, loader_fd))
 157         xa->screen = pipe_loader_create_screen(xa->dev, PIPE_SEARCH_DIR);
 158 #endif
 159     if (!xa->screen)
 160         goto out_no_screen;
 161
 162     xa->default_ctx = xa_context_create(xa);
 163     if (!xa->default_ctx)
 164         goto out_no_pipe;
 165
 166     num_formats = 0;
 167     for (stype = 0; stype < XA_LAST_SURFACE_TYPE; ++stype)
 168         num_formats += num_preferred[stype];
 169
 170     num_formats += 1;
 171     xa->supported_formats = calloc(num_formats, sizeof(*xa->supported_formats));
 172     if (!xa->supported_formats)
 173         goto out_sf_alloc_fail;
 174
 175     xa->supported_formats[0] = xa_format_unknown;
 176     num_formats = 1;
 177     memset(xa->format_map, 0, sizeof(xa->format_map));
 178
 179     for (stype = 0; stype < XA_LAST_SURFACE_TYPE; ++stype) {
 180         unsigned int bind = stype_bind[stype];
 181         enum xa_formats xa_format;
 182         int i;
 183
 184         for (i = 0; i < num_preferred[stype]; ++i) {
 185             xa_format = preferred[stype][i];
 186
 187             struct xa_format_descriptor fdesc = xa_get_pipe_format(xa_format);
 188
 189             if (xa->screen->is_format_supported(xa->screen, fdesc.format,
 190                                                 PIPE_TEXTURE_2D, 0, bind)) {
 191                 if (xa->format_map[stype][0] == 0)
 192                     xa->format_map[stype][0] = num_formats;
 193                 xa->format_map[stype][1] = num_formats;
 194                 xa->supported_formats[num_formats++] = xa_format;
 195             }
 196         }
 197     }
 198     return xa;
 199
 200  out_sf_alloc_fail:
 201     xa_context_destroy(xa->default_ctx);
 202  out_no_pipe:
 203     xa->screen->destroy(xa->screen);
 204  out_no_screen:
 205 #if !GALLIUM_STATIC_TARGETS
 206     if (xa->dev)
 207         pipe_loader_release(&xa->dev, 1);
 208 #endif
 209     free(xa);
 210     return NULL;
 211 }
 212
 213 XA_EXPORT void
 214 xa_tracker_destroy(struct xa_tracker *xa)
 215 {
 216     free(xa->supported_formats);
 217     xa_context_destroy(xa->default_ctx);
 218     xa->screen->destroy(xa->screen);
 219 #if !GALLIUM_STATIC_TARGETS
 220     pipe_loader_release(&xa->dev, 1);
 221 #endif
 222     free(xa);
 223 }
 224
 225 static int
 226 xa_flags_compat(unsigned int old_flags, unsigned int new_flags)
 227 {
 228     unsigned int flag_diff = (old_flags ^ new_flags);
 229
 230     if (flag_diff == 0)
 231         return 1;
 232
 233     if (flag_diff & XA_FLAG_SHARED)
 234         return 0;
 235     /*
 236      * Don't recreate if we're dropping the render target flag.
 237      */
 238     if (flag_diff & XA_FLAG_RENDER_TARGET)
 239         return ((new_flags & XA_FLAG_RENDER_TARGET) == 0);
 240
 241     /*
 242      * Don't recreate if we're dropping the scanout flag.
 243      */
 244     if (flag_diff & XA_FLAG_SCANOUT)
 245         return ((new_flags & XA_FLAG_SCANOUT) == 0);
 246
 247     /*
 248      * Always recreate for unknown / unimplemented flags.
 249      */
 250     return 0;
 251 }
 252
 253 static struct xa_format_descriptor
 254 xa_get_format_stype_depth(struct xa_tracker *xa,
 255                           enum xa_surface_type stype, unsigned int depth)
 256 {
 257     unsigned int i;
 258     struct xa_format_descriptor fdesc;
 259     int found = 0;
 260
 261     for (i = xa->format_map[stype][0]; i <= xa->format_map[stype][1]; ++i) {
 262         fdesc = xa_get_pipe_format(xa->supported_formats[i]);
 263         if (fdesc.xa_format != xa_format_unknown &&
 264             xa_format_depth(fdesc.xa_format) == depth) {
 265             found = 1;
 266             break;
 267         }
 268     }
 269
 270     if (!found)
 271         fdesc.xa_format = xa_format_unknown;
 272
 273     return fdesc;
 274 }
 275
 276 XA_EXPORT int
 277 xa_format_check_supported(struct xa_tracker *xa,
 278                           enum xa_formats xa_format, unsigned int flags)
 279 {
 280     struct xa_format_descriptor fdesc = xa_get_pipe_format(xa_format);
 281     unsigned int bind;
 282
 283     if (fdesc.xa_format == xa_format_unknown)
 284         return -XA_ERR_INVAL;
 285
 286     bind = stype_bind[xa_format_type(fdesc.xa_format)];
 287     if (flags & XA_FLAG_SHARED)
 288         bind |= PIPE_BIND_SHARED;
 289     if (flags & XA_FLAG_RENDER_TARGET)
 290         bind |= PIPE_BIND_RENDER_TARGET;
 291     if (flags & XA_FLAG_SCANOUT)
 292         bind |= PIPE_BIND_SCANOUT;
 293
 294     if (!xa->screen->is_format_supported(xa->screen, fdesc.format,
 295                                          PIPE_TEXTURE_2D, 0, bind))
 296         return -XA_ERR_INVAL;
 297
 298     return XA_ERR_NONE;
 299 }
 300
 301 static struct xa_surface *
 302 surface_create(struct xa_tracker *xa,
 303                   int width,
 304                   int height,
 305                   int depth,
 306                   enum xa_surface_type stype,
 307                   enum xa_formats xa_format, unsigned int flags,
 308                   struct winsys_handle *whandle)
 309 {
 310     struct pipe_resource *template;
 311     struct xa_surface *srf;
 312     struct xa_format_descriptor fdesc;
 313
 314     if (xa_format == xa_format_unknown)
 315         fdesc = xa_get_format_stype_depth(xa, stype, depth);
 316     else
 317         fdesc = xa_get_pipe_format(xa_format);
 318
 319     if (fdesc.xa_format == xa_format_unknown)
 320         return NULL;
 321
 322     srf = calloc(1, sizeof(*srf));
 323     if (!srf)
 324         return NULL;
 325
 326     template = &srf->template;
 327     template->format = fdesc.format;
 328     template->target = PIPE_TEXTURE_2D;
 329     template->width0 = width;
 330     template->height0 = height;
 331     template->depth0 = 1;
 332     template->array_size = 1;
 333     template->last_level = 0;
 334     template->bind = stype_bind[xa_format_type(fdesc.xa_format)];
 335
 336     if (flags & XA_FLAG_SHARED)
 337         template->bind |= PIPE_BIND_SHARED;
 338     if (flags & XA_FLAG_RENDER_TARGET)
 339         template->bind |= PIPE_BIND_RENDER_TARGET;
 340     if (flags & XA_FLAG_SCANOUT)
 341         template->bind |= PIPE_BIND_SCANOUT;
 342
 343     if (whandle)
 344         srf->tex = xa->screen->resource_from_handle(xa->screen, template, whandle);
 345     else
 346         srf->tex = xa->screen->resource_create(xa->screen, template);
 347     if (!srf->tex)
 348         goto out_no_tex;
 349
 350     srf->refcount = 1;
 351     srf->xa = xa;
 352     srf->flags = flags;
 353     srf->fdesc = fdesc;
 354
 355     return srf;
 356  out_no_tex:
 357     free(srf);
 358     return NULL;
 359 }
 360
 361
 362 XA_EXPORT struct xa_surface *
 363 xa_surface_create(struct xa_tracker *xa,
 364                   int width,
 365                   int height,
 366                   int depth,
 367                   enum xa_surface_type stype,
 368                   enum xa_formats xa_format, unsigned int flags)
 369 {
 370     return surface_create(xa, width, height, depth, stype, xa_format, flags, NULL);
 371 }
 372
 373
 374 XA_EXPORT struct xa_surface *
 375 xa_surface_from_handle(struct xa_tracker *xa,
 376                   int width,
 377                   int height,
 378                   int depth,
 379                   enum xa_surface_type stype,
 380                   enum xa_formats xa_format, unsigned int flags,
 381                   uint32_t handle, uint32_t stride)
 382 {
 383     struct winsys_handle whandle;
 384     memset(&whandle, 0, sizeof(whandle));
 385     whandle.type = DRM_API_HANDLE_TYPE_SHARED;
 386     whandle.handle = handle;
 387     whandle.stride = stride;
 388     return surface_create(xa, width, height, depth, stype, xa_format, flags, &whandle);
 389 }
 390
 391 XA_EXPORT int
 392 xa_surface_redefine(struct xa_surface *srf,
 393                     int width,
 394                     int height,
 395                     int depth,
 396                     enum xa_surface_type stype,
 397                     enum xa_formats xa_format,
 398                     unsigned int new_flags,
 399                     int copy_contents)
 400 {
 401     struct pipe_resource *template = &srf->template;
 402     struct pipe_resource *texture;
 403     struct pipe_box src_box;
 404     struct xa_tracker *xa = srf->xa;
 405     int save_width;
 406     int save_height;
 407     unsigned int save_format;
 408     struct xa_format_descriptor fdesc;
 409
 410
 411     if (xa_format == xa_format_unknown)
 412         fdesc = xa_get_format_stype_depth(xa, stype, depth);
 413     else
 414         fdesc = xa_get_pipe_format(xa_format);
 415
 416     if (width == template->width0 && height == template->height0 &&
 417         template->format == fdesc.format &&
 418         xa_flags_compat(srf->flags, new_flags))
 419         return XA_ERR_NONE;
 420
 421     template->bind = stype_bind[xa_format_type(fdesc.xa_format)];
 422     if (new_flags & XA_FLAG_SHARED)
 423         template->bind |= PIPE_BIND_SHARED;
 424     if (new_flags & XA_FLAG_RENDER_TARGET)
 425         template->bind |= PIPE_BIND_RENDER_TARGET;
 426     if (new_flags & XA_FLAG_SCANOUT)
 427         template->bind |= PIPE_BIND_SCANOUT;
 428
 429     if (copy_contents) {
 430         if (!xa_format_type_is_color(fdesc.xa_format) ||
 431             xa_format_type(fdesc.xa_format) == xa_type_a)
 432             return -XA_ERR_INVAL;
 433
 434         if (!xa->screen->is_format_supported(xa->screen, fdesc.format,
 435                                              PIPE_TEXTURE_2D, 0,
 436                                              template->bind |
 437                                              PIPE_BIND_RENDER_TARGET))
 438             return -XA_ERR_INVAL;
 439     }
 440
 441     save_width = template->width0;
 442     save_height = template->height0;
 443     save_format = template->format;
 444
 445     template->width0 = width;
 446     template->height0 = height;
 447     template->format = fdesc.format;
 448
 449     texture = xa->screen->resource_create(xa->screen, template);
 450     if (!texture) {
 451         template->width0 = save_width;
 452         template->height0 = save_height;
 453         template->format = save_format;
 454         return -XA_ERR_NORES;
 455     }
 456
 457     if (copy_contents) {
 458         struct pipe_context *pipe = xa->default_ctx->pipe;
 459
 460         u_box_origin_2d(xa_min(save_width, template->width0),
 461                         xa_min(save_height, template->height0), &src_box);
 462         pipe->resource_copy_region(pipe, texture,
 463                                    0, 0, 0, 0, srf->tex, 0, &src_box);
 464         xa_context_flush(xa->default_ctx);
 465     }
 466
 467     pipe_resource_reference(&srf->tex, texture);
 468     pipe_resource_reference(&texture, NULL);
 469     srf->fdesc = fdesc;
 470     srf->flags = new_flags;
 471
 472     return XA_ERR_NONE;
 473 }
 474
 475 XA_EXPORT struct xa_surface*
 476 xa_surface_ref(struct xa_surface *srf)
 477 {
 478     if (srf == NULL) {
 479         return NULL;
 480     }
 481     srf->refcount++;
 482     return srf;
 483 }
 484
 485 XA_EXPORT void
 486 xa_surface_unref(struct xa_surface *srf)
 487 {
 488     if (srf == NULL || --srf->refcount) {
 489         return;
 490     }
 491     pipe_resource_reference(&srf->tex, NULL);
 492     free(srf);
 493 }
 494
 495 XA_EXPORT void
 496 xa_tracker_version(int *major, int *minor, int *patch)
 497 {
 498     *major = XA_TRACKER_VERSION_MAJOR;
 499     *minor = XA_TRACKER_VERSION_MINOR;
 500     *patch = XA_TRACKER_VERSION_PATCH;
 501 }
 502
 503 XA_EXPORT int
 504 xa_surface_handle(struct xa_surface *srf,
 505                   enum xa_handle_type type,
 506                   uint32_t * handle, unsigned int *stride)
 507 {
 508     struct winsys_handle whandle;
 509
 510     struct pipe_screen *screen = srf->xa->screen;
 511     boolean res;
 512
 513     memset(&whandle, 0, sizeof(whandle));
 514     switch (type) {
 515     case xa_handle_type_kms:
 516         whandle.type = DRM_API_HANDLE_TYPE_KMS;
 517         break;
 518     case xa_handle_type_shared:
 519     default:
 520         whandle.type = DRM_API_HANDLE_TYPE_SHARED;
 521         break;
 522     }
 523     res = screen->resource_get_handle(screen, srf->tex, &whandle);
 524     if (!res)
 525         return -XA_ERR_INVAL;
 526
 527     *handle = whandle.handle;
 528     *stride = whandle.stride;
 529
 530     return XA_ERR_NONE;
 531 }
 532
 533 XA_EXPORT enum xa_formats
 534 xa_surface_format(const struct xa_surface *srf)
 535 {
 536     return srf->fdesc.xa_format;
 537 }