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 "xa_tracker.h"
  30 #include "xa_priv.h"
  31 #include "pipe/p_state.h"
  32 #include "pipe/p_format.h"
  33 #include "state_tracker/drm_driver.h"
  34 #include "util/u_inlines.h"
  35
  36 /*
  37  * format_map [xa_surface_type][first..last in list].
  38  * Needs to be updated when enum xa_formats is updated.
  39  */
  40
  41 static const enum xa_formats preferred_a[] = { xa_format_a8 };
  42
  43 static const enum xa_formats preferred_argb[] =
  44     { xa_format_a8r8g8b8, xa_format_x8r8g8b8, xa_format_r5g6b5,
  45     xa_format_x1r5g5b5
  46 };
  47 static const enum xa_formats preferred_z[] =
  48     { xa_format_z32, xa_format_z24, xa_format_z16 };
  49 static const enum xa_formats preferred_sz[] =
  50     { xa_format_x8z24, xa_format_s8z24 };
  51 static const enum xa_formats preferred_zs[] =
  52     { xa_format_z24x8, xa_format_z24s8 };
  53 static const enum xa_formats preferred_yuv[] = { xa_format_yuv8 };
  54
  55 static const enum xa_formats *preferred[] =
  56     { NULL, preferred_a, preferred_argb, NULL, NULL,
  57     preferred_z, preferred_zs, preferred_sz, preferred_yuv
  58 };
  59
  60 static const unsigned int num_preferred[] = { 0,
  61     sizeof(preferred_a) / sizeof(enum xa_formats),
  62     sizeof(preferred_argb) / sizeof(enum xa_formats),
  63     0,
  64     0,
  65     sizeof(preferred_z) / sizeof(enum xa_formats),
  66     sizeof(preferred_zs) / sizeof(enum xa_formats),
  67     sizeof(preferred_sz) / sizeof(enum xa_formats),
  68     sizeof(preferred_yuv) / sizeof(enum xa_formats)
  69 };
  70
  71 static const unsigned int stype_bind[XA_LAST_SURFACE_TYPE] = { 0,
  72     PIPE_BIND_SAMPLER_VIEW,
  73     PIPE_BIND_SAMPLER_VIEW,
  74     PIPE_BIND_SAMPLER_VIEW,
  75     PIPE_BIND_SAMPLER_VIEW,
  76     PIPE_BIND_DEPTH_STENCIL,
  77     PIPE_BIND_DEPTH_STENCIL,
  78     PIPE_BIND_DEPTH_STENCIL,
  79     PIPE_BIND_SAMPLER_VIEW
  80 };
  81
  82 static struct xa_format_descriptor
  83 xa_get_pipe_format(enum xa_formats xa_format)
  84 {
  85     struct xa_format_descriptor fdesc;
  86
  87     fdesc.xa_format = xa_format;
  88
  89     switch (xa_format) {
  90     case xa_format_a8r8g8b8:
  91         fdesc.format = PIPE_FORMAT_B8G8R8A8_UNORM;
  92         break;
  93     case xa_format_x8r8g8b8:
  94         fdesc.format = PIPE_FORMAT_B8G8R8X8_UNORM;
  95         break;
  96     case xa_format_r5g6b5:
  97         fdesc.format = PIPE_FORMAT_B5G6R5_UNORM;
  98         break;
  99     case xa_format_x1r5g5b5:
 100         fdesc.format = PIPE_FORMAT_B5G5R5A1_UNORM;
 101         break;
 102     case xa_format_a8:
 103         fdesc.format = PIPE_FORMAT_L8_UNORM;
 104         break;
 105     case xa_format_z24:
 106         fdesc.format = PIPE_FORMAT_Z24X8_UNORM;
 107         break;
 108     case xa_format_z16:
 109         fdesc.format = PIPE_FORMAT_Z16_UNORM;
 110         break;
 111     case xa_format_z32:
 112         fdesc.format = PIPE_FORMAT_Z32_UNORM;
 113         break;
 114     case xa_format_x8z24:
 115         fdesc.format = PIPE_FORMAT_Z24X8_UNORM;
 116         break;
 117     case xa_format_z24x8:
 118         fdesc.format = PIPE_FORMAT_X8Z24_UNORM;
 119         break;
 120     case xa_format_s8z24:
 121         fdesc.format = PIPE_FORMAT_Z24_UNORM_S8_USCALED;
 122         break;
 123     case xa_format_z24s8:
 124         fdesc.format = PIPE_FORMAT_S8_USCALED_Z24_UNORM;
 125         break;
 126     case xa_format_yuv8:
 127         fdesc.format = PIPE_FORMAT_L8_UNORM;
 128         break;
 129     default:
 130         fdesc.xa_format = xa_format_unknown;
 131         break;
 132     }
 133     return fdesc;
 134 }
 135
 136 struct xa_tracker *
 137 xa_tracker_create(int drm_fd)
 138 {
 139     struct xa_tracker *xa = calloc(1, sizeof(struct xa_tracker));
 140     enum xa_surface_type stype;
 141     unsigned int num_formats;
 142
 143     if (!xa)
 144         return NULL;
 145
 146     xa->screen = driver_descriptor.create_screen(drm_fd);
 147     if (!xa->screen)
 148         goto out_no_screen;
 149
 150     xa->default_ctx = xa_context_create(xa);
 151     if (!xa->default_ctx)
 152         goto out_no_pipe;
 153
 154     num_formats = 0;
 155     for (stype = 0; stype < XA_LAST_SURFACE_TYPE; ++stype)
 156         num_formats += num_preferred[stype];
 157
 158     num_formats += 1;
 159     xa->supported_formats = calloc(num_formats, sizeof(*xa->supported_formats));
 160     if (!xa->supported_formats)
 161         goto out_sf_alloc_fail;
 162
 163     xa->supported_formats[0] = xa_format_unknown;
 164     num_formats = 1;
 165     memset(xa->format_map, 0, sizeof(xa->format_map));
 166
 167     for (stype = 0; stype < XA_LAST_SURFACE_TYPE; ++stype) {
 168         unsigned int bind = stype_bind[stype];
 169         enum xa_formats xa_format;
 170         int i;
 171
 172         for (i = 0; i < num_preferred[stype]; ++i) {
 173             xa_format = preferred[stype][i];
 174
 175             struct xa_format_descriptor fdesc = xa_get_pipe_format(xa_format);
 176
 177             if (xa->screen->is_format_supported(xa->screen, fdesc.format,
 178                                                 PIPE_TEXTURE_2D, 0, bind)) {
 179                 if (xa->format_map[stype][0] == 0)
 180                     xa->format_map[stype][0] = num_formats;
 181                 xa->format_map[stype][1] = num_formats;
 182                 xa->supported_formats[num_formats++] = xa_format;
 183             }
 184         }
 185     }
 186     return xa;
 187
 188  out_sf_alloc_fail:
 189     xa_context_destroy(xa->default_ctx);
 190  out_no_pipe:
 191     xa->screen->destroy(xa->screen);
 192  out_no_screen:
 193     free(xa);
 194     return NULL;
 195 }
 196
 197 void
 198 xa_tracker_destroy(struct xa_tracker *xa)
 199 {
 200     free(xa->supported_formats);
 201     xa_context_destroy(xa->default_ctx);
 202     xa->screen->destroy(xa->screen);
 203     free(xa);
 204 }
 205
 206 static int
 207 xa_flags_compat(unsigned int old_flags, unsigned int new_flags)
 208 {
 209     unsigned int flag_diff = (old_flags ^ new_flags);
 210
 211     if (flag_diff == 0)
 212         return 1;
 213
 214     if (flag_diff & XA_FLAG_SHARED)
 215         return 0;
 216     /*
 217      * Don't recreate if we're dropping the render target flag.
 218      */
 219     if (flag_diff & XA_FLAG_RENDER_TARGET)
 220         return ((new_flags & XA_FLAG_RENDER_TARGET) == 0);
 221
 222     /*
 223      * Always recreate for unknown / unimplemented flags.
 224      */
 225     return 0;
 226 }
 227
 228 static struct xa_format_descriptor
 229 xa_get_format_stype_depth(struct xa_tracker *xa,
 230                           enum xa_surface_type stype, unsigned int depth)
 231 {
 232     unsigned int i;
 233     struct xa_format_descriptor fdesc;
 234     int found = 0;
 235
 236     for (i = xa->format_map[stype][0]; i <= xa->format_map[stype][1]; ++i) {
 237         fdesc = xa_get_pipe_format(xa->supported_formats[i]);
 238         if (fdesc.xa_format != xa_format_unknown &&
 239             xa_format_depth(fdesc.xa_format) == depth) {
 240             found = 1;
 241             break;
 242         }
 243     }
 244
 245     if (!found)
 246         fdesc.xa_format = xa_format_unknown;
 247
 248     return fdesc;
 249 }
 250
 251 struct xa_surface *
 252 xa_surface_create(struct xa_tracker *xa,
 253                   int width,
 254                   int height,
 255                   int depth,
 256                   enum xa_surface_type stype,
 257                   enum xa_formats xa_format, unsigned int flags)
 258 {
 259     struct pipe_resource *template;
 260     struct xa_surface *srf;
 261     struct xa_format_descriptor fdesc;
 262
 263     if (xa_format == xa_format_unknown)
 264         fdesc = xa_get_format_stype_depth(xa, stype, depth);
 265     else
 266         fdesc = xa_get_pipe_format(xa_format);
 267
 268     if (fdesc.xa_format == xa_format_unknown)
 269         return NULL;
 270
 271     srf = calloc(1, sizeof(*srf));
 272     if (!srf)
 273         return NULL;
 274
 275     template = &srf->template;
 276     template->format = fdesc.format;
 277     template->target = PIPE_TEXTURE_2D;
 278     template->width0 = width;
 279     template->height0 = height;
 280     template->depth0 = 1;
 281     template->array_size = 1;
 282     template->last_level = 0;
 283     template->bind = stype_bind[xa_format_type(fdesc.xa_format)];
 284
 285     if (flags & XA_FLAG_SHARED)
 286         template->bind |= PIPE_BIND_SHARED;
 287     if (flags & XA_FLAG_RENDER_TARGET)
 288         template->bind |= PIPE_BIND_RENDER_TARGET;
 289
 290     srf->tex = xa->screen->resource_create(xa->screen, template);
 291     if (!srf->tex)
 292         goto out_no_tex;
 293
 294     srf->srf = NULL;
 295     srf->xa = xa;
 296     srf->flags = flags;
 297     srf->fdesc = fdesc;
 298
 299     return srf;
 300  out_no_tex:
 301     free(srf);
 302     return NULL;
 303 }
 304
 305 int
 306 xa_surface_redefine(struct xa_surface *srf,
 307                     int width,
 308                     int height,
 309                     int depth,
 310                     enum xa_surface_type stype,
 311                     enum xa_formats xa_format,
 312                     unsigned int add_flags,
 313                     unsigned int remove_flags, int copy_contents)
 314 {
 315     struct pipe_resource *template = &srf->template;
 316     struct pipe_resource *texture;
 317     struct pipe_box src_box;
 318     struct xa_tracker *xa = srf->xa;
 319     int save_width;
 320     int save_height;
 321     unsigned int new_flags = (srf->flags | add_flags) & ~(remove_flags);
 322     struct xa_format_descriptor fdesc;
 323
 324     if (xa_format == xa_format_unknown)
 325         fdesc = xa_get_format_stype_depth(xa, stype, depth);
 326     else
 327         fdesc = xa_get_pipe_format(xa_format);
 328
 329     if (width == template->width0 && height == template->height0 &&
 330         template->format == fdesc.format &&
 331         xa_flags_compat(srf->flags, new_flags))
 332         return XA_ERR_NONE;
 333
 334     template->bind = stype_bind[xa_format_type(fdesc.xa_format)];
 335     if (new_flags & XA_FLAG_SHARED)
 336         template->bind |= PIPE_BIND_SHARED;
 337     if (new_flags & XA_FLAG_RENDER_TARGET)
 338         template->bind |= PIPE_BIND_RENDER_TARGET;
 339
 340     if (copy_contents) {
 341         if (!xa_format_type_is_color(fdesc.xa_format) ||
 342             xa_format_type(fdesc.xa_format) == xa_type_a)
 343             return -XA_ERR_INVAL;
 344
 345         if (!xa->screen->is_format_supported(xa->screen, fdesc.format,
 346                                              PIPE_TEXTURE_2D, 0,
 347                                              template->bind |
 348                                              PIPE_BIND_RENDER_TARGET))
 349             return -XA_ERR_INVAL;
 350     }
 351
 352     save_width = template->width0;
 353     save_height = template->height0;
 354
 355     template->width0 = width;
 356     template->height0 = height;
 357
 358     texture = xa->screen->resource_create(xa->screen, template);
 359     if (!texture) {
 360         template->width0 = save_width;
 361         template->height0 = save_height;
 362         return -XA_ERR_NORES;
 363     }
 364
 365     pipe_surface_reference(&srf->srf, NULL);
 366
 367     if (copy_contents) {
 368         struct pipe_context *pipe = xa->default_ctx->pipe;
 369
 370         u_box_origin_2d(xa_min(save_width, template->width0),
 371                         xa_min(save_height, template->height0), &src_box);
 372         pipe->resource_copy_region(pipe, texture,
 373                                    0, 0, 0, 0, srf->tex, 0, &src_box);
 374         pipe->flush(pipe, &xa->default_ctx->last_fence);
 375     }
 376
 377     pipe_resource_reference(&srf->tex, texture);
 378     pipe_resource_reference(&texture, NULL);
 379     srf->fdesc = fdesc;
 380     srf->flags = new_flags;
 381
 382     return XA_ERR_NONE;
 383 }
 384
 385 void
 386 xa_surface_destroy(struct xa_surface *srf)
 387 {
 388     pipe_surface_reference(&srf->srf, NULL);
 389     pipe_resource_reference(&srf->tex, NULL);
 390     free(srf);
 391 }
 392
 393 extern void
 394 xa_tracker_version(int *major, int *minor, int *patch)
 395 {
 396     *major = XA_TRACKER_VERSION_MAJOR;
 397     *minor = XA_TRACKER_VERSION_MINOR;
 398     *patch = XA_TRACKER_VERSION_PATCH;
 399 }
 400
 401 extern int
 402 xa_surface_handle(struct xa_surface *srf,
 403                   uint32_t * handle, unsigned int *stride)
 404 {
 405     struct winsys_handle whandle;
 406
 407     struct pipe_screen *screen = srf->xa->screen;
 408     boolean res;
 409
 410     memset(&whandle, 0, sizeof(whandle));
 411     whandle.type = DRM_API_HANDLE_TYPE_SHARED;
 412     res = screen->resource_get_handle(screen, srf->tex, &whandle);
 413     if (!res)
 414         return -XA_ERR_INVAL;
 415
 416     *handle = whandle.handle;
 417     *stride = whandle.stride;
 418
 419     return XA_ERR_NONE;
 420 }