src/gallium/drivers/r600/r600_texture.c

   1 /*
   2  * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *      Jerome Glisse
  25  *      Corbin Simpson
  26  */
  27 #include <pipe/p_screen.h>
  28 #include <util/u_format.h>
  29 #include <util/u_math.h>
  30 #include <util/u_inlines.h>
  31 #include <util/u_memory.h>
  32 #include "state_tracker/drm_driver.h"
  33 #include "r600_screen.h"
  34 #include "r600_context.h"
  35 #include "r600_resource.h"
  36 #include "r600d.h"
  37
  38 extern struct u_resource_vtbl r600_texture_vtbl;
  39
  40 static unsigned long r600_texture_get_offset(struct r600_resource_texture *rtex,
  41                                         unsigned level, unsigned zslice,
  42                                         unsigned face)
  43 {
  44         unsigned long offset = rtex->offset[level];
  45
  46         switch (rtex->resource.base.b.target) {
  47         case PIPE_TEXTURE_3D:
  48                 assert(face == 0);
  49                 return offset + zslice * rtex->layer_size[level];
  50         case PIPE_TEXTURE_CUBE:
  51                 assert(zslice == 0);
  52                 return offset + face * rtex->layer_size[level];
  53         default:
  54                 assert(zslice == 0 && face == 0);
  55                 return offset;
  56         }
  57 }
  58
  59 static void r600_setup_miptree(struct r600_screen *rscreen, struct r600_resource_texture *rtex)
  60 {
  61         struct pipe_resource *ptex = &rtex->resource.base.b;
  62         unsigned long w, h, pitch, size, layer_size, i, offset;
  63
  64         rtex->bpt = util_format_get_blocksize(ptex->format);
  65         for (i = 0, offset = 0; i <= ptex->last_level; i++) {
  66                 w = u_minify(ptex->width0, i);
  67                 h = u_minify(ptex->height0, i);
  68                 h = util_next_power_of_two(h);
  69                 pitch = util_format_get_stride(ptex->format, align(w, 64));
  70                 pitch = align(pitch, 256);
  71                 layer_size = pitch * h;
  72                 if (ptex->target == PIPE_TEXTURE_CUBE)
  73                         size = layer_size * 6;
  74                 else
  75                         size = layer_size * u_minify(ptex->depth0, i);
  76                 rtex->offset[i] = offset;
  77                 rtex->layer_size[i] = layer_size;
  78                 rtex->pitch[i] = pitch;
  79                 offset += size;
  80         }
  81         rtex->size = offset;
  82 }
  83
  84 struct pipe_resource *r600_texture_create(struct pipe_screen *screen,
  85                                                 const struct pipe_resource *templ)
  86 {
  87         struct r600_resource_texture *rtex;
  88         struct r600_resource *resource;
  89         struct r600_screen *rscreen = r600_screen(screen);
  90
  91         rtex = CALLOC_STRUCT(r600_resource_texture);
  92         if (!rtex) {
  93                 return NULL;
  94         }
  95         resource = &rtex->resource;
  96         resource->base.b = *templ;
  97         resource->base.vtbl = &r600_texture_vtbl;
  98         pipe_reference_init(&resource->base.b.reference, 1);
  99         resource->base.b.screen = screen;
 100         r600_setup_miptree(rscreen, rtex);
 101
 102         /* FIXME alignment 4096 enought ? too much ? */
 103         resource->domain = r600_domain_from_usage(resource->base.b.bind);
 104         resource->bo = radeon_bo(rscreen->rw, 0, rtex->size, 4096, NULL);
 105         if (resource->bo == NULL) {
 106                 FREE(rtex);
 107                 return NULL;
 108         }
 109
 110         return &resource->base.b;
 111 }
 112
 113 static void r600_texture_destroy(struct pipe_screen *screen,
 114                                  struct pipe_resource *ptex)
 115 {
 116         struct r600_resource_texture *rtex = (struct r600_resource_texture*)ptex;
 117         struct r600_resource *resource = &rtex->resource;
 118         struct r600_screen *rscreen = r600_screen(screen);
 119
 120         if (resource->bo) {
 121                 radeon_bo_decref(rscreen->rw, resource->bo);
 122         }
 123         FREE(rtex);
 124 }
 125
 126 static struct pipe_surface *r600_get_tex_surface(struct pipe_screen *screen,
 127                                                 struct pipe_resource *texture,
 128                                                 unsigned face, unsigned level,
 129                                                 unsigned zslice, unsigned flags)
 130 {
 131         struct r600_resource_texture *rtex = (struct r600_resource_texture*)texture;
 132         struct pipe_surface *surface = CALLOC_STRUCT(pipe_surface);
 133         unsigned long offset;
 134
 135         if (surface == NULL)
 136                 return NULL;
 137         offset = r600_texture_get_offset(rtex, level, zslice, face);
 138         pipe_reference_init(&surface->reference, 1);
 139         pipe_resource_reference(&surface->texture, texture);
 140         surface->format = texture->format;
 141         surface->width = u_minify(texture->width0, level);
 142         surface->height = u_minify(texture->height0, level);
 143         surface->offset = offset;
 144         surface->usage = flags;
 145         surface->zslice = zslice;
 146         surface->texture = texture;
 147         surface->face = face;
 148         surface->level = level;
 149         return surface;
 150 }
 151
 152 static void r600_tex_surface_destroy(struct pipe_surface *surface)
 153 {
 154         pipe_resource_reference(&surface->texture, NULL);
 155         FREE(surface);
 156 }
 157
 158 struct pipe_resource *r600_texture_from_handle(struct pipe_screen *screen,
 159                                                const struct pipe_resource *templ,
 160                                                struct winsys_handle *whandle)
 161 {
 162         struct radeon *rw = (struct radeon*)screen->winsys;
 163         struct r600_resource_texture *rtex;
 164         struct r600_resource *resource;
 165         struct radeon_bo *bo = NULL;
 166
 167         bo = radeon_bo(rw, whandle->handle, 0, 0, NULL);
 168         if (bo == NULL) {
 169                 return NULL;
 170         }
 171
 172         /* Support only 2D textures without mipmaps */
 173         if ((templ->target != PIPE_TEXTURE_2D && templ->target != PIPE_TEXTURE_RECT) ||
 174               templ->depth0 != 1 || templ->last_level != 0)
 175                 return NULL;
 176
 177         rtex = CALLOC_STRUCT(r600_resource_texture);
 178         if (rtex == NULL)
 179                 return NULL;
 180
 181         resource = &rtex->resource;
 182         resource->base.b = *templ;
 183         resource->base.vtbl = &r600_texture_vtbl;
 184         pipe_reference_init(&resource->base.b.reference, 1);
 185         resource->base.b.screen = screen;
 186         resource->bo = bo;
 187         rtex->pitch_override = whandle->stride;
 188         rtex->bpt = util_format_get_blocksize(templ->format);
 189         rtex->pitch[0] = whandle->stride;
 190         rtex->offset[0] = 0;
 191         rtex->size = align(rtex->pitch[0] * templ->height0, 64);
 192
 193         return &resource->base.b;
 194 }
 195
 196 static unsigned int r600_texture_is_referenced(struct pipe_context *context,
 197                                                 struct pipe_resource *texture,
 198                                                 unsigned face, unsigned level)
 199 {
 200         /* FIXME */
 201         return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
 202 }
 203
 204 struct pipe_transfer* r600_texture_get_transfer(struct pipe_context *ctx,
 205                                                 struct pipe_resource *texture,
 206                                                 struct pipe_subresource sr,
 207                                                 unsigned usage,
 208                                                 const struct pipe_box *box)
 209 {
 210         struct r600_resource_texture *rtex = (struct r600_resource_texture*)texture;
 211         struct r600_transfer *trans;
 212
 213         trans = CALLOC_STRUCT(r600_transfer);
 214         if (trans == NULL)
 215                 return NULL;
 216         pipe_resource_reference(&trans->transfer.resource, texture);
 217         trans->transfer.sr = sr;
 218         trans->transfer.usage = usage;
 219         trans->transfer.box = *box;
 220         trans->transfer.stride = rtex->pitch[sr.level];
 221         trans->offset = r600_texture_get_offset(rtex, sr.level, box->z, sr.face);
 222         return &trans->transfer;
 223 }
 224
 225 void r600_texture_transfer_destroy(struct pipe_context *ctx,
 226                                    struct pipe_transfer *trans)
 227 {
 228         pipe_resource_reference(&trans->resource, NULL);
 229         FREE(trans);
 230 }
 231
 232 void* r600_texture_transfer_map(struct pipe_context *ctx,
 233                                 struct pipe_transfer* transfer)
 234 {
 235         struct r600_transfer *rtransfer = (struct r600_transfer*)transfer;
 236         struct r600_resource *resource;
 237         enum pipe_format format = transfer->resource->format;
 238         struct r600_screen *rscreen = r600_screen(ctx->screen);
 239         char *map;
 240
 241         r600_flush(ctx, 0, NULL);
 242
 243         resource = (struct r600_resource *)transfer->resource;
 244         if (radeon_bo_map(rscreen->rw, resource->bo)) {
 245                 return NULL;
 246         }
 247         radeon_bo_wait(rscreen->rw, resource->bo);
 248
 249         map = resource->bo->data;
 250
 251         return map + rtransfer->offset +
 252                 transfer->box.y / util_format_get_blockheight(format) * transfer->stride +
 253                 transfer->box.x / util_format_get_blockwidth(format) * util_format_get_blocksize(format);
 254 }
 255
 256 void r600_texture_transfer_unmap(struct pipe_context *ctx,
 257                                  struct pipe_transfer* transfer)
 258 {
 259         struct r600_screen *rscreen = r600_screen(ctx->screen);
 260         struct r600_resource *resource;
 261
 262         resource = (struct r600_resource *)transfer->resource;
 263         radeon_bo_unmap(rscreen->rw, resource->bo);
 264 }
 265
 266 struct u_resource_vtbl r600_texture_vtbl =
 267 {
 268         u_default_resource_get_handle,  /* get_handle */
 269         r600_texture_destroy,           /* resource_destroy */
 270         r600_texture_is_referenced,     /* is_resource_referenced */
 271         r600_texture_get_transfer,      /* get_transfer */
 272         r600_texture_transfer_destroy,  /* transfer_destroy */
 273         r600_texture_transfer_map,      /* transfer_map */
 274         u_default_transfer_flush_region,/* transfer_flush_region */
 275         r600_texture_transfer_unmap,    /* transfer_unmap */
 276         u_default_transfer_inline_write /* transfer_inline_write */
 277 };
 278
 279 void r600_init_screen_texture_functions(struct pipe_screen *screen)
 280 {
 281         screen->get_tex_surface = r600_get_tex_surface;
 282         screen->tex_surface_destroy = r600_tex_surface_destroy;
 283 }
 284
 285 static unsigned r600_get_swizzle_combined(const unsigned char *swizzle_format,
 286                                           const unsigned char *swizzle_view)
 287 {
 288     unsigned i;
 289     unsigned char swizzle[4];
 290     unsigned result = 0;
 291     const uint32_t swizzle_shift[4] = {
 292             16, 19, 22, 25,
 293     };
 294     const uint32_t swizzle_bit[4] = {
 295             0, 1, 2, 3,
 296     };
 297
 298     if (swizzle_view) {
 299         /* Combine two sets of swizzles. */
 300         for (i = 0; i < 4; i++) {
 301             swizzle[i] = swizzle_view[i] <= UTIL_FORMAT_SWIZZLE_W ?
 302                          swizzle_format[swizzle_view[i]] : swizzle_view[i];
 303         }
 304     } else {
 305         memcpy(swizzle, swizzle_format, 4);
 306     }
 307
 308     /* Get swizzle. */
 309     for (i = 0; i < 4; i++) {
 310         switch (swizzle[i]) {
 311             case UTIL_FORMAT_SWIZZLE_Y:
 312                 result |= swizzle_bit[1] << swizzle_shift[i];
 313                 break;
 314             case UTIL_FORMAT_SWIZZLE_Z:
 315                 result |= swizzle_bit[2] << swizzle_shift[i];
 316                 break;
 317             case UTIL_FORMAT_SWIZZLE_W:
 318                 result |= swizzle_bit[3] << swizzle_shift[i];
 319                 break;
 320             case UTIL_FORMAT_SWIZZLE_0:
 321                 result |= V_038010_SQ_SEL_0 << swizzle_shift[i];
 322                 break;
 323             case UTIL_FORMAT_SWIZZLE_1:
 324                 result |= V_038010_SQ_SEL_1 << swizzle_shift[i];
 325                 break;
 326             default: /* UTIL_FORMAT_SWIZZLE_X */
 327                 result |= swizzle_bit[0] << swizzle_shift[i];
 328         }
 329     }
 330     return result;
 331 }
 332
 333 /* texture format translate */
 334 uint32_t r600_translate_texformat(enum pipe_format format,
 335                                   const unsigned char *swizzle_view,
 336                                   uint32_t *word4_p, uint32_t *yuv_format_p)
 337 {
 338         uint32_t result = 0, word4 = 0, yuv_format = 0;
 339         const struct util_format_description *desc;
 340         boolean uniform = TRUE;
 341         int i;
 342         const uint32_t sign_bit[4] = {
 343                 S_038010_FORMAT_COMP_X(V_038010_SQ_FORMAT_COMP_SIGNED),
 344                 S_038010_FORMAT_COMP_Y(V_038010_SQ_FORMAT_COMP_SIGNED),
 345                 S_038010_FORMAT_COMP_Z(V_038010_SQ_FORMAT_COMP_SIGNED),
 346                 S_038010_FORMAT_COMP_W(V_038010_SQ_FORMAT_COMP_SIGNED)
 347         };
 348         desc = util_format_description(format);
 349
 350         /* Colorspace (return non-RGB formats directly). */
 351         switch (desc->colorspace) {
 352                 /* Depth stencil formats */
 353         case UTIL_FORMAT_COLORSPACE_ZS:
 354                 switch (format) {
 355                 case PIPE_FORMAT_Z16_UNORM:
 356                         result = V_028010_DEPTH_16;
 357                         goto out_word4;
 358                 case PIPE_FORMAT_Z24X8_UNORM:
 359                         result = V_028010_DEPTH_X8_24;
 360                         goto out_word4;
 361                 case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
 362                         result = V_028010_DEPTH_8_24;
 363                         goto out_word4;
 364                 default:
 365                         goto out_unknown;
 366                 }
 367
 368         case UTIL_FORMAT_COLORSPACE_YUV:
 369                 yuv_format |= (1 << 30);
 370                 switch (format) {
 371                 case PIPE_FORMAT_UYVY:
 372                 case PIPE_FORMAT_YUYV:
 373                 default:
 374                         break;
 375                 }
 376                 goto out_unknown; /* TODO */
 377
 378         case UTIL_FORMAT_COLORSPACE_SRGB:
 379                 word4 |= S_038010_FORCE_DEGAMMA(1);
 380                 if (format == PIPE_FORMAT_L8A8_SRGB || format == PIPE_FORMAT_L8_SRGB)
 381                         goto out_unknown; /* fails for some reason - TODO */
 382                 break;
 383
 384         default:
 385                 break;
 386         }
 387
 388         word4 |= r600_get_swizzle_combined(desc->swizzle, swizzle_view);
 389
 390         /* S3TC formats. TODO */
 391         if (desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
 392                 goto out_unknown;
 393         }
 394
 395
 396         for (i = 0; i < desc->nr_channels; i++) {
 397                 if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
 398                         word4 |= sign_bit[i];
 399                 }
 400         }
 401
 402         /* R8G8Bx_SNORM - TODO CxV8U8 */
 403
 404         /* RGTC - TODO */
 405
 406         /* See whether the components are of the same size. */
 407         for (i = 1; i < desc->nr_channels; i++) {
 408                 uniform = uniform && desc->channel[0].size == desc->channel[i].size;
 409         }
 410
 411         /* Non-uniform formats. */
 412         if (!uniform) {
 413                 switch(desc->nr_channels) {
 414                 case 3:
 415                         if (desc->channel[0].size == 5 &&
 416                             desc->channel[1].size == 6 &&
 417                             desc->channel[2].size == 5) {
 418                                 result |= V_0280A0_COLOR_5_6_5;
 419                                 goto out_word4;
 420                         }
 421                         goto out_unknown;
 422                 case 4:
 423                         if (desc->channel[0].size == 5 &&
 424                             desc->channel[1].size == 5 &&
 425                             desc->channel[2].size == 5 &&
 426                             desc->channel[3].size == 1) {
 427                                 result |= V_0280A0_COLOR_1_5_5_5;
 428                                 goto out_word4;
 429                         }
 430                         if (desc->channel[0].size == 10 &&
 431                             desc->channel[1].size == 10 &&
 432                             desc->channel[2].size == 10 &&
 433                             desc->channel[3].size == 2) {
 434                                 result |= V_0280A0_COLOR_10_10_10_2;
 435                                 goto out_word4;
 436                         }
 437                         goto out_unknown;
 438                 }
 439                 goto out_unknown;
 440         }
 441
 442         /* uniform formats */
 443         switch (desc->channel[0].type) {
 444         case UTIL_FORMAT_TYPE_UNSIGNED:
 445         case UTIL_FORMAT_TYPE_SIGNED:
 446                 if (!desc->channel[0].normalized &&
 447                     desc->colorspace != UTIL_FORMAT_COLORSPACE_SRGB) {
 448                         goto out_unknown;
 449                 }
 450
 451                 switch (desc->channel[0].size) {
 452                 case 4:
 453                         switch (desc->nr_channels) {
 454                         case 2:
 455                                 result |= V_0280A0_COLOR_4_4;
 456                                 goto out_word4;
 457                         case 4:
 458                                 result |= V_0280A0_COLOR_4_4_4_4;
 459                                 goto out_word4;
 460                         }
 461                         goto out_unknown;
 462                 case 8:
 463                         switch (desc->nr_channels) {
 464                         case 1:
 465                                 result |= V_0280A0_COLOR_8;
 466                                 goto out_word4;
 467                         case 2:
 468                                 result |= V_0280A0_COLOR_8_8;
 469                                 goto out_word4;
 470                         case 4:
 471                                 result |= V_0280A0_COLOR_8_8_8_8;
 472                                 goto out_word4;
 473                         }
 474                         goto out_unknown;
 475                 case 16:
 476                         switch (desc->nr_channels) {
 477                         case 1:
 478                                 result |= V_0280A0_COLOR_16;
 479                                 goto out_word4;
 480                         case 2:
 481                                 result |= V_0280A0_COLOR_16_16;
 482                                 goto out_word4;
 483                         case 4:
 484                                 result |= V_0280A0_COLOR_16_16_16_16;
 485                                 goto out_word4;
 486                         }
 487                 }
 488                 goto out_unknown;
 489
 490         case UTIL_FORMAT_TYPE_FLOAT:
 491                 switch (desc->channel[0].size) {
 492                 case 16:
 493                         switch (desc->nr_channels) {
 494                         case 1:
 495                                 result |= V_0280A0_COLOR_16_FLOAT;
 496                                 goto out_word4;
 497                         case 2:
 498                                 result |= V_0280A0_COLOR_16_16_FLOAT;
 499                                 goto out_word4;
 500                         case 4:
 501                                 result |= V_0280A0_COLOR_16_16_16_16_FLOAT;
 502                                 goto out_word4;
 503                         }
 504                         goto out_unknown;
 505                 case 32:
 506                         switch (desc->nr_channels) {
 507                         case 1:
 508                                 result |= V_0280A0_COLOR_32_FLOAT;
 509                                 goto out_word4;
 510                         case 2:
 511                                 result |= V_0280A0_COLOR_32_32_FLOAT;
 512                                 goto out_word4;
 513                         case 4:
 514                                 result |= V_0280A0_COLOR_32_32_32_32_FLOAT;
 515                                 goto out_word4;
 516                         }
 517                 }
 518
 519         }
 520 out_word4:
 521         if (word4_p)
 522                 *word4_p = word4;
 523         if (yuv_format_p)
 524                 *yuv_format_p = yuv_format;
 525 //      fprintf(stderr,"returning %08x %08x %08x\n", result, word4, yuv_format);
 526         return result;
 527 out_unknown:
 528 //      R600_ERR("Unable to handle texformat %d %s\n", format, util_format_name(format));
 529         return ~0;
 530 }