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                 layer_size = pitch * h;
  71                 if (ptex->target == PIPE_TEXTURE_CUBE)
  72                         size = layer_size * 6;
  73                 else
  74                         size = layer_size * u_minify(ptex->depth0, i);
  75                 rtex->offset[i] = offset;
  76                 rtex->layer_size[i] = layer_size;
  77                 rtex->pitch[i] = pitch;
  78                 offset += size;
  79         }
  80         rtex->size = offset;
  81 }
  82
  83 struct pipe_resource *r600_texture_create(struct pipe_screen *screen,
  84                                                 const struct pipe_resource *templ)
  85 {
  86         struct r600_resource_texture *rtex;
  87         struct r600_resource *resource;
  88         struct r600_screen *rscreen = r600_screen(screen);
  89
  90         rtex = CALLOC_STRUCT(r600_resource_texture);
  91         if (!rtex) {
  92                 return NULL;
  93         }
  94         resource = &rtex->resource;
  95         resource->base.b = *templ;
  96         resource->base.vtbl = &r600_texture_vtbl;
  97         pipe_reference_init(&resource->base.b.reference, 1);
  98         resource->base.b.screen = screen;
  99         r600_setup_miptree(rscreen, rtex);
 100
 101         /* FIXME alignment 4096 enought ? too much ? */
 102         resource->domain = r600_domain_from_usage(resource->base.b.bind);
 103         resource->bo = radeon_bo(rscreen->rw, 0, rtex->size, 4096, NULL);
 104         if (resource->bo == NULL) {
 105                 FREE(rtex);
 106                 return NULL;
 107         }
 108
 109         return &resource->base.b;
 110 }
 111
 112 static void r600_texture_destroy(struct pipe_screen *screen,
 113                                  struct pipe_resource *ptex)
 114 {
 115         struct r600_resource_texture *rtex = (struct r600_resource_texture*)ptex;
 116         struct r600_resource *resource = &rtex->resource;
 117         struct r600_screen *rscreen = r600_screen(screen);
 118
 119         if (resource->bo) {
 120                 radeon_bo_decref(rscreen->rw, resource->bo);
 121         }
 122         FREE(rtex);
 123 }
 124
 125 static struct pipe_surface *r600_get_tex_surface(struct pipe_screen *screen,
 126                                                 struct pipe_resource *texture,
 127                                                 unsigned face, unsigned level,
 128                                                 unsigned zslice, unsigned flags)
 129 {
 130         struct r600_resource_texture *rtex = (struct r600_resource_texture*)texture;
 131         struct pipe_surface *surface = CALLOC_STRUCT(pipe_surface);
 132         unsigned long offset;
 133
 134         if (surface == NULL)
 135                 return NULL;
 136         offset = r600_texture_get_offset(rtex, level, zslice, face);
 137         pipe_reference_init(&surface->reference, 1);
 138         pipe_resource_reference(&surface->texture, texture);
 139         surface->format = texture->format;
 140         surface->width = u_minify(texture->width0, level);
 141         surface->height = u_minify(texture->height0, level);
 142         surface->offset = offset;
 143         surface->usage = flags;
 144         surface->zslice = zslice;
 145         surface->texture = texture;
 146         surface->face = face;
 147         surface->level = level;
 148         return surface;
 149 }
 150
 151 static void r600_tex_surface_destroy(struct pipe_surface *surface)
 152 {
 153         pipe_resource_reference(&surface->texture, NULL);
 154         FREE(surface);
 155 }
 156
 157 struct pipe_resource *r600_texture_from_handle(struct pipe_screen *screen,
 158                                                const struct pipe_resource *templ,
 159                                                struct winsys_handle *whandle)
 160 {
 161         struct radeon *rw = (struct radeon*)screen->winsys;
 162         struct r600_resource_texture *rtex;
 163         struct r600_resource *resource;
 164         struct radeon_bo *bo = NULL;
 165
 166         bo = radeon_bo(rw, whandle->handle, 0, 0, NULL);
 167         if (bo == NULL) {
 168                 return NULL;
 169         }
 170
 171         /* Support only 2D textures without mipmaps */
 172         if (templ->target != PIPE_TEXTURE_2D || templ->depth0 != 1 || templ->last_level != 0)
 173                 return NULL;
 174
 175         rtex = CALLOC_STRUCT(r600_resource_texture);
 176         if (rtex == NULL)
 177                 return NULL;
 178
 179         resource = &rtex->resource;
 180         resource->base.b = *templ;
 181         resource->base.vtbl = &r600_texture_vtbl;
 182         pipe_reference_init(&resource->base.b.reference, 1);
 183         resource->base.b.screen = screen;
 184         resource->bo = bo;
 185         rtex->pitch_override = whandle->stride;
 186         rtex->bpt = util_format_get_blocksize(templ->format);
 187         rtex->pitch[0] = whandle->stride;
 188         rtex->offset[0] = 0;
 189         rtex->size = align(rtex->pitch[0] * templ->height0, 64);
 190
 191         return &resource->base.b;
 192 }
 193
 194 static unsigned int r600_texture_is_referenced(struct pipe_context *context,
 195                                                 struct pipe_resource *texture,
 196                                                 unsigned face, unsigned level)
 197 {
 198         /* FIXME */
 199         return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
 200 }
 201
 202 struct pipe_transfer* r600_texture_get_transfer(struct pipe_context *ctx,
 203                                                 struct pipe_resource *texture,
 204                                                 struct pipe_subresource sr,
 205                                                 unsigned usage,
 206                                                 const struct pipe_box *box)
 207 {
 208         struct r600_resource_texture *rtex = (struct r600_resource_texture*)texture;
 209         struct r600_transfer *trans;
 210
 211         trans = CALLOC_STRUCT(r600_transfer);
 212         if (trans == NULL)
 213                 return NULL;
 214         pipe_resource_reference(&trans->transfer.resource, texture);
 215         trans->transfer.sr = sr;
 216         trans->transfer.usage = usage;
 217         trans->transfer.box = *box;
 218         trans->transfer.stride = rtex->pitch[sr.level];
 219         trans->offset = r600_texture_get_offset(rtex, sr.level, box->z, sr.face);
 220         return &trans->transfer;
 221 }
 222
 223 void r600_texture_transfer_destroy(struct pipe_context *ctx,
 224                                    struct pipe_transfer *trans)
 225 {
 226         pipe_resource_reference(&trans->resource, NULL);
 227         FREE(trans);
 228 }
 229
 230 void* r600_texture_transfer_map(struct pipe_context *ctx,
 231                                 struct pipe_transfer* transfer)
 232 {
 233         struct r600_transfer *rtransfer = (struct r600_transfer*)transfer;
 234         struct r600_resource *resource;
 235         enum pipe_format format = transfer->resource->format;
 236         struct r600_screen *rscreen = r600_screen(ctx->screen);
 237         char *map;
 238
 239         r600_flush(ctx, 0, NULL);
 240
 241         resource = (struct r600_resource *)transfer->resource;
 242         if (radeon_bo_map(rscreen->rw, resource->bo)) {
 243                 return NULL;
 244         }
 245         radeon_bo_wait(rscreen->rw, resource->bo);
 246
 247         map = resource->bo->data;
 248
 249         return map + rtransfer->offset +
 250                 transfer->box.y / util_format_get_blockheight(format) * transfer->stride +
 251                 transfer->box.x / util_format_get_blockwidth(format) * util_format_get_blocksize(format);
 252 }
 253
 254 void r600_texture_transfer_unmap(struct pipe_context *ctx,
 255                                  struct pipe_transfer* transfer)
 256 {
 257         struct r600_screen *rscreen = r600_screen(ctx->screen);
 258         struct r600_resource *resource;
 259
 260         resource = (struct r600_resource *)transfer->resource;
 261         radeon_bo_unmap(rscreen->rw, resource->bo);
 262 }
 263
 264 struct u_resource_vtbl r600_texture_vtbl =
 265 {
 266         u_default_resource_get_handle,  /* get_handle */
 267         r600_texture_destroy,           /* resource_destroy */
 268         r600_texture_is_referenced,     /* is_resource_referenced */
 269         r600_texture_get_transfer,      /* get_transfer */
 270         r600_texture_transfer_destroy,  /* transfer_destroy */
 271         r600_texture_transfer_map,      /* transfer_map */
 272         u_default_transfer_flush_region,/* transfer_flush_region */
 273         r600_texture_transfer_unmap,    /* transfer_unmap */
 274         u_default_transfer_inline_write /* transfer_inline_write */
 275 };
 276
 277 void r600_init_screen_texture_functions(struct pipe_screen *screen)
 278 {
 279         screen->get_tex_surface = r600_get_tex_surface;
 280         screen->tex_surface_destroy = r600_tex_surface_destroy;
 281 }
 282
 283 static unsigned r600_get_swizzle_combined(const unsigned char *swizzle_format,
 284                                           const unsigned char *swizzle_view)
 285 {
 286     unsigned i;
 287     unsigned char swizzle[4];
 288     unsigned result = 0;
 289     const uint32_t swizzle_shift[4] = {
 290             16, 19, 22, 25,
 291     };
 292     const uint32_t swizzle_bit[4] = {
 293             0, 1, 2, 3,
 294     };
 295
 296     if (swizzle_view) {
 297         /* Combine two sets of swizzles. */
 298         for (i = 0; i < 4; i++) {
 299             swizzle[i] = swizzle_view[i] <= UTIL_FORMAT_SWIZZLE_W ?
 300                          swizzle_format[swizzle_view[i]] : swizzle_view[i];
 301         }
 302     } else {
 303         memcpy(swizzle, swizzle_format, 4);
 304     }
 305
 306     /* Get swizzle. */
 307     for (i = 0; i < 4; i++) {
 308         switch (swizzle[i]) {
 309             case UTIL_FORMAT_SWIZZLE_Y:
 310                 result |= swizzle_bit[1] << swizzle_shift[i];
 311                 break;
 312             case UTIL_FORMAT_SWIZZLE_Z:
 313                 result |= swizzle_bit[2] << swizzle_shift[i];
 314                 break;
 315             case UTIL_FORMAT_SWIZZLE_W:
 316                 result |= swizzle_bit[3] << swizzle_shift[i];
 317                 break;
 318             case UTIL_FORMAT_SWIZZLE_0:
 319                 result |= V_038010_SQ_SEL_0 << swizzle_shift[i];
 320                 break;
 321             case UTIL_FORMAT_SWIZZLE_1:
 322                 result |= V_038010_SQ_SEL_1 << swizzle_shift[i];
 323                 break;
 324             default: /* UTIL_FORMAT_SWIZZLE_X */
 325                 result |= swizzle_bit[0] << swizzle_shift[i];
 326         }
 327     }
 328     return result;
 329 }
 330
 331 /* texture format translate */
 332 uint32_t r600_translate_texformat(enum pipe_format format,
 333                                   const unsigned char *swizzle_view,
 334                                   uint32_t *word4_p, uint32_t *yuv_format_p)
 335 {
 336         uint32_t result = 0, word4 = 0, yuv_format = 0;
 337         const struct util_format_description *desc;
 338         boolean uniform = TRUE;
 339         int i;
 340         const uint32_t sign_bit[4] = {
 341                 S_038010_FORMAT_COMP_X(V_038010_SQ_FORMAT_COMP_SIGNED),
 342                 S_038010_FORMAT_COMP_Y(V_038010_SQ_FORMAT_COMP_SIGNED),
 343                 S_038010_FORMAT_COMP_Z(V_038010_SQ_FORMAT_COMP_SIGNED),
 344                 S_038010_FORMAT_COMP_W(V_038010_SQ_FORMAT_COMP_SIGNED)
 345         };
 346         desc = util_format_description(format);
 347
 348         /* Colorspace (return non-RGB formats directly). */
 349         switch (desc->colorspace) {
 350                 /* Depth stencil formats */
 351         case UTIL_FORMAT_COLORSPACE_ZS:
 352                 switch (format) {
 353                 case PIPE_FORMAT_Z16_UNORM:
 354                         result = V_028010_DEPTH_16;
 355                         goto out_word4;
 356                 case PIPE_FORMAT_Z24X8_UNORM:
 357                         result = V_028010_DEPTH_X8_24;
 358                         goto out_word4;
 359                 case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
 360                         result = V_028010_DEPTH_8_24;
 361                         goto out_word4;
 362                 default:
 363                         goto out_unknown;
 364                 }
 365
 366         case UTIL_FORMAT_COLORSPACE_YUV:
 367                 yuv_format |= (1 << 30);
 368                 switch (format) {
 369                 case PIPE_FORMAT_UYVY:
 370                 case PIPE_FORMAT_YUYV:
 371                 default:
 372                         break;
 373                 }
 374                 goto out_unknown; /* TODO */
 375
 376         case UTIL_FORMAT_COLORSPACE_SRGB:
 377                 word4 |= S_038010_FORCE_DEGAMMA(1);
 378                 if (format == PIPE_FORMAT_L8A8_SRGB || format == PIPE_FORMAT_L8_SRGB)
 379                         goto out_unknown; /* fails for some reason - TODO */
 380                 break;
 381
 382         default:
 383                 break;
 384         }
 385
 386         word4 |= r600_get_swizzle_combined(desc->swizzle, swizzle_view);
 387
 388         /* S3TC formats. TODO */
 389         if (desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
 390                 goto out_unknown;
 391         }
 392
 393
 394         for (i = 0; i < desc->nr_channels; i++) {
 395                 if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
 396                         word4 |= sign_bit[i];
 397                 }
 398         }
 399
 400         /* R8G8Bx_SNORM - TODO CxV8U8 */
 401
 402         /* RGTC - TODO */
 403
 404         /* See whether the components are of the same size. */
 405         for (i = 1; i < desc->nr_channels; i++) {
 406                 uniform = uniform && desc->channel[0].size == desc->channel[i].size;
 407         }
 408
 409         /* Non-uniform formats. */
 410         if (!uniform) {
 411                 switch(desc->nr_channels) {
 412                 case 3:
 413                         if (desc->channel[0].size == 5 &&
 414                             desc->channel[1].size == 6 &&
 415                             desc->channel[2].size == 5) {
 416                                 result |= V_0280A0_COLOR_5_6_5;
 417                                 goto out_word4;
 418                         }
 419                         goto out_unknown;
 420                 case 4:
 421                         if (desc->channel[0].size == 5 &&
 422                             desc->channel[1].size == 5 &&
 423                             desc->channel[2].size == 5 &&
 424                             desc->channel[3].size == 1) {
 425                                 result |= V_0280A0_COLOR_1_5_5_5;
 426                                 goto out_word4;
 427                         }
 428                         if (desc->channel[0].size == 10 &&
 429                             desc->channel[1].size == 10 &&
 430                             desc->channel[2].size == 10 &&
 431                             desc->channel[3].size == 2) {
 432                                 result |= V_0280A0_COLOR_10_10_10_2;
 433                                 goto out_word4;
 434                         }
 435                         goto out_unknown;
 436                 }
 437                 goto out_unknown;
 438         }
 439
 440         /* uniform formats */
 441         switch (desc->channel[0].type) {
 442         case UTIL_FORMAT_TYPE_UNSIGNED:
 443         case UTIL_FORMAT_TYPE_SIGNED:
 444                 if (!desc->channel[0].normalized &&
 445                     desc->colorspace != UTIL_FORMAT_COLORSPACE_SRGB) {
 446                         goto out_unknown;
 447                 }
 448
 449                 switch (desc->channel[0].size) {
 450                 case 4:
 451                         switch (desc->nr_channels) {
 452                         case 2:
 453                                 result |= V_0280A0_COLOR_4_4;
 454                                 goto out_word4;
 455                         case 4:
 456                                 result |= V_0280A0_COLOR_4_4_4_4;
 457                                 goto out_word4;
 458                         }
 459                         goto out_unknown;
 460                 case 8:
 461                         switch (desc->nr_channels) {
 462                         case 1:
 463                                 result |= V_0280A0_COLOR_8;
 464                                 goto out_word4;
 465                         case 2:
 466                                 result |= V_0280A0_COLOR_8_8;
 467                                 goto out_word4;
 468                         case 4:
 469                                 result |= V_0280A0_COLOR_8_8_8_8;
 470                                 goto out_word4;
 471                         }
 472                         goto out_unknown;
 473                 case 16:
 474                         switch (desc->nr_channels) {
 475                         case 1:
 476                                 result |= V_0280A0_COLOR_16;
 477                                 goto out_word4;
 478                         case 2:
 479                                 result |= V_0280A0_COLOR_16_16;
 480                                 goto out_word4;
 481                         case 4:
 482                                 result |= V_0280A0_COLOR_16_16_16_16;
 483                                 goto out_word4;
 484                         }
 485                 }
 486                 goto out_unknown;
 487
 488         case UTIL_FORMAT_TYPE_FLOAT:
 489                 switch (desc->channel[0].size) {
 490                 case 16:
 491                         switch (desc->nr_channels) {
 492                         case 1:
 493                                 result |= V_0280A0_COLOR_16_FLOAT;
 494                                 goto out_word4;
 495                         case 2:
 496                                 result |= V_0280A0_COLOR_16_16_FLOAT;
 497                                 goto out_word4;
 498                         case 4:
 499                                 result |= V_0280A0_COLOR_16_16_16_16_FLOAT;
 500                                 goto out_word4;
 501                         }
 502                         goto out_unknown;
 503                 case 32:
 504                         switch (desc->nr_channels) {
 505                         case 1:
 506                                 result |= V_0280A0_COLOR_32_FLOAT;
 507                                 goto out_word4;
 508                         case 2:
 509                                 result |= V_0280A0_COLOR_32_32_FLOAT;
 510                                 goto out_word4;
 511                         case 4:
 512                                 result |= V_0280A0_COLOR_32_32_32_32_FLOAT;
 513                                 goto out_word4;
 514                         }
 515                 }
 516
 517         }
 518 out_word4:
 519         if (word4_p)
 520                 *word4_p = word4;
 521         if (yuv_format_p)
 522                 *yuv_format_p = yuv_format;
 523 //      fprintf(stderr,"returning %08x %08x %08x\n", result, word4, yuv_format);
 524         return result;
 525 out_unknown:
 526 //      R600_ERR("Unable to handle texformat %d %s\n", format, util_format_name(format));
 527         return ~0;
 528 }