src/mesa/drivers/dri/nouveau/nouveau_texture.c

   1 /*
   2  * Copyright (C) 2009 Francisco Jerez.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include "nouveau_driver.h"
  28 #include "nouveau_context.h"
  29 #include "nouveau_texture.h"
  30 #include "nouveau_fbo.h"
  31 #include "nouveau_util.h"
  32
  33 #include "main/pbo.h"
  34 #include "main/texobj.h"
  35 #include "main/texstore.h"
  36 #include "main/texformat.h"
  37 #include "main/texcompress.h"
  38 #include "main/texgetimage.h"
  39 #include "main/mipmap.h"
  40 #include "main/teximage.h"
  41 #include "drivers/common/meta.h"
  42 #include "swrast/s_texfetch.h"
  43
  44 static struct gl_texture_object *
  45 nouveau_texture_new(struct gl_context *ctx, GLuint name, GLenum target)
  46 {
  47         struct nouveau_texture *nt = CALLOC_STRUCT(nouveau_texture);
  48
  49         _mesa_initialize_texture_object(&nt->base, name, target);
  50
  51         return &nt->base;
  52 }
  53
  54 static void
  55 nouveau_texture_free(struct gl_context *ctx, struct gl_texture_object *t)
  56 {
  57         struct nouveau_texture *nt = to_nouveau_texture(t);
  58         int i;
  59
  60         for (i = 0; i < MAX_TEXTURE_LEVELS; i++)
  61                 nouveau_surface_ref(NULL, &nt->surfaces[i]);
  62
  63         _mesa_delete_texture_object(ctx, t);
  64 }
  65
  66 static struct gl_texture_image *
  67 nouveau_teximage_new(struct gl_context *ctx)
  68 {
  69         struct nouveau_teximage *nti = CALLOC_STRUCT(nouveau_teximage);
  70
  71         return &nti->base.Base;
  72 }
  73
  74 static void
  75 nouveau_teximage_free(struct gl_context *ctx, struct gl_texture_image *ti)
  76 {
  77         struct nouveau_teximage *nti = to_nouveau_teximage(ti);
  78
  79         nouveau_surface_ref(NULL, &nti->surface);
  80 }
  81
  82 static void
  83 nouveau_teximage_map(struct gl_context *ctx, struct gl_texture_image *ti,
  84                      int access, int x, int y, int w, int h)
  85 {
  86         struct nouveau_teximage *nti = to_nouveau_teximage(ti);
  87         struct nouveau_surface *s = &nti->surface;
  88         struct nouveau_surface *st = &nti->transfer.surface;
  89         struct nouveau_client *client = context_client(ctx);
  90
  91         if (s->bo) {
  92                 if (!(access & GL_MAP_READ_BIT) &&
  93                     nouveau_pushbuf_refd(context_push(ctx), s->bo)) {
  94                         unsigned size;
  95                         /*
  96                          * Heuristic: use a bounce buffer to pipeline
  97                          * teximage transfers.
  98                          */
  99                         st->layout = LINEAR;
 100                         st->format = s->format;
 101                         st->cpp = s->cpp;
 102                         st->width = w;
 103                         st->height = h;
 104                         st->pitch = s->pitch;
 105                         nti->transfer.x = x;
 106                         nti->transfer.y = y;
 107
 108                         size = get_format_blocksy(st->format, h) * st->pitch;
 109                         nti->base.Map = nouveau_get_scratch(ctx, size,
 110                                                        &st->bo, &st->offset);
 111
 112                 } else {
 113                         int ret, flags = 0;
 114
 115                         if (access & GL_MAP_READ_BIT)
 116                                 flags |= NOUVEAU_BO_RD;
 117                         if (access & GL_MAP_WRITE_BIT)
 118                                 flags |= NOUVEAU_BO_WR;
 119
 120                         if (!s->bo->map) {
 121                                 ret = nouveau_bo_map(s->bo, flags, client);
 122                                 assert(!ret);
 123                         }
 124
 125                         nti->base.Map = s->bo->map +
 126                                 get_format_blocksy(s->format, y) * s->pitch +
 127                                 get_format_blocksx(s->format, x) * s->cpp;
 128
 129                 }
 130         }
 131 }
 132
 133 static void
 134 nouveau_teximage_unmap(struct gl_context *ctx, struct gl_texture_image *ti)
 135 {
 136         struct nouveau_teximage *nti = to_nouveau_teximage(ti);
 137         struct nouveau_surface *s = &nti->surface;
 138         struct nouveau_surface *st = &nti->transfer.surface;
 139
 140         if (st->bo) {
 141                 context_drv(ctx)->surface_copy(ctx, s, st, nti->transfer.x,
 142                                                nti->transfer.y, 0, 0,
 143                                                st->width, st->height);
 144                 nouveau_surface_ref(NULL, st);
 145
 146         }
 147         nti->base.Map = NULL;
 148 }
 149
 150
 151 static void
 152 nouveau_map_texture_image(struct gl_context *ctx,
 153                           struct gl_texture_image *ti,
 154                           GLuint slice,
 155                           GLuint x, GLuint y, GLuint w, GLuint h,
 156                           GLbitfield mode,
 157                           GLubyte **map,
 158                           GLint *stride)
 159 {
 160         struct nouveau_teximage *nti = to_nouveau_teximage(ti);
 161         struct nouveau_surface *s = &nti->surface;
 162         struct nouveau_surface *st = &nti->transfer.surface;
 163         struct nouveau_client *client = context_client(ctx);
 164
 165         /* Nouveau has no support for 3D or cubemap textures. */
 166         assert(slice == 0);
 167
 168         if (s->bo) {
 169                 if (!(mode & GL_MAP_READ_BIT) &&
 170                     nouveau_pushbuf_refd(context_push(ctx), s->bo)) {
 171                         unsigned size;
 172                         /*
 173                          * Heuristic: use a bounce buffer to pipeline
 174                          * teximage transfers.
 175                          */
 176                         st->layout = LINEAR;
 177                         st->format = s->format;
 178                         st->cpp = s->cpp;
 179                         st->width = w;
 180                         st->height = h;
 181                         st->pitch = s->pitch;
 182                         nti->transfer.x = x;
 183                         nti->transfer.y = y;
 184
 185                         size = get_format_blocksy(st->format, h) * st->pitch;
 186                         *map = nouveau_get_scratch(ctx, size,
 187                                           &st->bo, &st->offset);
 188                         *stride = st->pitch;
 189                 } else {
 190                         int ret, flags = 0;
 191
 192                         if (mode & GL_MAP_READ_BIT)
 193                                 flags |= NOUVEAU_BO_RD;
 194                         if (mode & GL_MAP_WRITE_BIT)
 195                                 flags |= NOUVEAU_BO_WR;
 196
 197                         if (!s->bo->map) {
 198                                 ret = nouveau_bo_map(s->bo, flags, client);
 199                                 assert(!ret);
 200                         }
 201
 202                         *map = s->bo->map +
 203                                 get_format_blocksy(s->format, y) * s->pitch +
 204                                 get_format_blocksx(s->format, x) * s->cpp;
 205                         *stride = s->pitch;
 206                 }
 207         } else {
 208                 *map = nti->base.Map +
 209                         get_format_blocksy(s->format, y) * s->pitch +
 210                         get_format_blocksx(s->format, x) * s->cpp;
 211                 *stride = s->pitch;
 212         }
 213 }
 214
 215 static void
 216 nouveau_unmap_texture_image(struct gl_context *ctx, struct gl_texture_image *ti,
 217                             GLuint slice)
 218 {
 219         struct nouveau_teximage *nti = to_nouveau_teximage(ti);
 220         struct nouveau_surface *s = &nti->surface;
 221         struct nouveau_surface *st = &nti->transfer.surface;
 222
 223         if (st->bo) {
 224                 context_drv(ctx)->surface_copy(ctx, s, st, nti->transfer.x,
 225                                                nti->transfer.y, 0, 0,
 226                                                st->width, st->height);
 227                 nouveau_surface_ref(NULL, st);
 228
 229         }
 230
 231         nti->base.Map = NULL;
 232 }
 233
 234 static gl_format
 235 nouveau_choose_tex_format(struct gl_context *ctx, GLint internalFormat,
 236                           GLenum srcFormat, GLenum srcType)
 237 {
 238         switch (internalFormat) {
 239         case 4:
 240         case GL_RGBA:
 241         case GL_RGBA2:
 242         case GL_RGBA4:
 243         case GL_RGBA8:
 244         case GL_RGBA12:
 245         case GL_RGBA16:
 246         case GL_RGB10_A2:
 247         case GL_COMPRESSED_RGBA:
 248                 return MESA_FORMAT_ARGB8888;
 249         case GL_RGB5_A1:
 250                 return MESA_FORMAT_ARGB1555;
 251
 252         case GL_RGB:
 253         case GL_RGB8:
 254         case GL_RGB10:
 255         case GL_RGB12:
 256         case GL_RGB16:
 257         case GL_COMPRESSED_RGB:
 258                 return MESA_FORMAT_XRGB8888;
 259         case 3:
 260         case GL_R3_G3_B2:
 261         case GL_RGB4:
 262         case GL_RGB5:
 263                 return MESA_FORMAT_RGB565;
 264
 265         case 2:
 266         case GL_LUMINANCE_ALPHA:
 267         case GL_LUMINANCE4_ALPHA4:
 268         case GL_LUMINANCE6_ALPHA2:
 269         case GL_LUMINANCE12_ALPHA4:
 270         case GL_LUMINANCE12_ALPHA12:
 271         case GL_LUMINANCE16_ALPHA16:
 272         case GL_LUMINANCE8_ALPHA8:
 273         case GL_COMPRESSED_LUMINANCE_ALPHA:
 274                 return MESA_FORMAT_ARGB8888;
 275
 276         case 1:
 277         case GL_LUMINANCE:
 278         case GL_LUMINANCE4:
 279         case GL_LUMINANCE12:
 280         case GL_LUMINANCE16:
 281         case GL_LUMINANCE8:
 282         case GL_COMPRESSED_LUMINANCE:
 283                 return MESA_FORMAT_L8;
 284
 285         case GL_ALPHA:
 286         case GL_ALPHA4:
 287         case GL_ALPHA12:
 288         case GL_ALPHA16:
 289         case GL_ALPHA8:
 290         case GL_COMPRESSED_ALPHA:
 291                 return MESA_FORMAT_A8;
 292
 293         case GL_INTENSITY:
 294         case GL_INTENSITY4:
 295         case GL_INTENSITY12:
 296         case GL_INTENSITY16:
 297         case GL_INTENSITY8:
 298                 return MESA_FORMAT_I8;
 299
 300         case GL_RGB_S3TC:
 301         case GL_RGB4_S3TC:
 302         case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
 303                 return MESA_FORMAT_RGB_DXT1;
 304
 305         case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
 306                 return MESA_FORMAT_RGBA_DXT1;
 307
 308         case GL_RGBA_S3TC:
 309         case GL_RGBA4_S3TC:
 310         case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
 311                 return MESA_FORMAT_RGBA_DXT3;
 312
 313         case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
 314                 return MESA_FORMAT_RGBA_DXT5;
 315
 316         default:
 317                 assert(0);
 318         }
 319 }
 320
 321 static GLboolean
 322 teximage_fits(struct gl_texture_object *t, int level)
 323 {
 324         struct nouveau_surface *s = &to_nouveau_texture(t)->surfaces[level];
 325         struct gl_texture_image *ti = t->Image[0][level];
 326
 327         if (!ti || !to_nouveau_teximage(ti)->surface.bo)
 328                 return GL_FALSE;
 329
 330         if (level == t->BaseLevel && (s->offset & 0x7f))
 331                 return GL_FALSE;
 332
 333         return t->Target == GL_TEXTURE_RECTANGLE ||
 334                 (s->bo && s->format == ti->TexFormat &&
 335                  s->width == ti->Width && s->height == ti->Height);
 336 }
 337
 338 static GLboolean
 339 validate_teximage(struct gl_context *ctx, struct gl_texture_object *t,
 340                   int level, int x, int y, int z,
 341                   int width, int height, int depth)
 342 {
 343         struct gl_texture_image *ti = t->Image[0][level];
 344
 345         if (teximage_fits(t, level)) {
 346                 struct nouveau_surface *ss = to_nouveau_texture(t)->surfaces;
 347                 struct nouveau_surface *s = &to_nouveau_teximage(ti)->surface;
 348
 349                 if (t->Target == GL_TEXTURE_RECTANGLE)
 350                         nouveau_surface_ref(s, &ss[level]);
 351                 else
 352                         context_drv(ctx)->surface_copy(ctx, &ss[level], s,
 353                                                        x, y, x, y,
 354                                                        width, height);
 355
 356                 return GL_TRUE;
 357         }
 358
 359         return GL_FALSE;
 360 }
 361
 362 static int
 363 get_last_level(struct gl_texture_object *t)
 364 {
 365         struct gl_texture_image *base = t->Image[0][t->BaseLevel];
 366
 367         if (t->Sampler.MinFilter == GL_NEAREST ||
 368             t->Sampler.MinFilter == GL_LINEAR || !base)
 369                 return t->BaseLevel;
 370         else
 371                 return MIN2(t->BaseLevel + base->MaxLog2, t->MaxLevel);
 372 }
 373
 374 static void
 375 relayout_texture(struct gl_context *ctx, struct gl_texture_object *t)
 376 {
 377         struct gl_texture_image *base = t->Image[0][t->BaseLevel];
 378
 379         if (base && t->Target != GL_TEXTURE_RECTANGLE) {
 380                 struct nouveau_surface *ss = to_nouveau_texture(t)->surfaces;
 381                 struct nouveau_surface *s = &to_nouveau_teximage(base)->surface;
 382                 int i, ret, last = get_last_level(t);
 383                 enum nouveau_surface_layout layout =
 384                         (_mesa_is_format_compressed(s->format) ? LINEAR : SWIZZLED);
 385                 unsigned size, pitch, offset = 0,
 386                         width = s->width,
 387                         height = s->height;
 388
 389                 /* Deallocate the old storage. */
 390                 for (i = 0; i < MAX_TEXTURE_LEVELS; i++)
 391                         nouveau_bo_ref(NULL, &ss[i].bo);
 392
 393                 /* Relayout the mipmap tree. */
 394                 for (i = t->BaseLevel; i <= last; i++) {
 395                         pitch = _mesa_format_row_stride(s->format, width);
 396                         size = get_format_blocksy(s->format, height) * pitch;
 397
 398                         /* Images larger than 16B have to be aligned. */
 399                         if (size > 16)
 400                                 offset = align(offset, 64);
 401
 402                         ss[i] = (struct nouveau_surface) {
 403                                 .offset = offset,
 404                                 .layout = layout,
 405                                 .format = s->format,
 406                                 .width = width,
 407                                 .height = height,
 408                                 .cpp = s->cpp,
 409                                 .pitch = pitch,
 410                         };
 411
 412                         offset += size;
 413                         width = MAX2(1, width / 2);
 414                         height = MAX2(1, height / 2);
 415                 }
 416
 417                 /* Get new storage. */
 418                 size = align(offset, 64);
 419
 420                 ret = nouveau_bo_new(context_dev(ctx), NOUVEAU_BO_MAP |
 421                                      NOUVEAU_BO_GART | NOUVEAU_BO_VRAM,
 422                                      0, size, NULL, &ss[last].bo);
 423                 assert(!ret);
 424
 425                 for (i = t->BaseLevel; i < last; i++)
 426                         nouveau_bo_ref(ss[last].bo, &ss[i].bo);
 427         }
 428 }
 429
 430 GLboolean
 431 nouveau_texture_validate(struct gl_context *ctx, struct gl_texture_object *t)
 432 {
 433         struct nouveau_texture *nt = to_nouveau_texture(t);
 434         int i, last = get_last_level(t);
 435
 436         if (!teximage_fits(t, t->BaseLevel) ||
 437             !teximage_fits(t, last))
 438                 return GL_FALSE;
 439
 440         if (nt->dirty) {
 441                 nt->dirty = GL_FALSE;
 442
 443                 /* Copy the teximages to the actual miptree. */
 444                 for (i = t->BaseLevel; i <= last; i++) {
 445                         struct nouveau_surface *s = &nt->surfaces[i];
 446
 447                         validate_teximage(ctx, t, i, 0, 0, 0,
 448                                           s->width, s->height, 1);
 449                 }
 450
 451                 PUSH_KICK(context_push(ctx));
 452         }
 453
 454         return GL_TRUE;
 455 }
 456
 457 void
 458 nouveau_texture_reallocate(struct gl_context *ctx, struct gl_texture_object *t)
 459 {
 460         if (!teximage_fits(t, t->BaseLevel) ||
 461             !teximage_fits(t, get_last_level(t))) {
 462                 texture_dirty(t);
 463                 relayout_texture(ctx, t);
 464                 nouveau_texture_validate(ctx, t);
 465         }
 466 }
 467
 468 static unsigned
 469 get_teximage_placement(struct gl_texture_image *ti)
 470 {
 471         if (ti->TexFormat == MESA_FORMAT_A8 ||
 472             ti->TexFormat == MESA_FORMAT_L8 ||
 473             ti->TexFormat == MESA_FORMAT_I8)
 474                 /* 1 cpp formats will have to be swizzled by the CPU,
 475                  * so leave them in system RAM for now. */
 476                 return NOUVEAU_BO_MAP;
 477         else
 478                 return NOUVEAU_BO_GART | NOUVEAU_BO_MAP;
 479 }
 480
 481 static void
 482 nouveau_teximage(struct gl_context *ctx, GLint dims,
 483                  struct gl_texture_image *ti,
 484                  GLsizei imageSize,
 485                  GLenum format, GLenum type, const GLvoid *pixels,
 486                  const struct gl_pixelstore_attrib *packing,
 487                  GLboolean compressed)
 488 {
 489         struct gl_texture_object *t = ti->TexObject;
 490         const GLuint level = ti->Level;
 491         struct nouveau_surface *s = &to_nouveau_teximage(ti)->surface;
 492         struct nouveau_teximage *nti = to_nouveau_teximage(ti);
 493         int ret;
 494         GLuint depth = compressed ? 1 : ti->Depth;
 495
 496         /* Allocate a new bo for the image. */
 497         nouveau_surface_alloc(ctx, s, LINEAR, get_teximage_placement(ti),
 498                               ti->TexFormat, ti->Width, ti->Height);
 499         nti->base.RowStride = s->pitch / s->cpp;
 500
 501         if (compressed)
 502                 pixels = _mesa_validate_pbo_compressed_teximage(ctx,
 503                         imageSize,
 504                         pixels, packing, "glCompressedTexImage");
 505         else
 506                 pixels = _mesa_validate_pbo_teximage(ctx,
 507                         dims, ti->Width, ti->Height, depth, format, type,
 508                         pixels, packing, "glTexImage");
 509
 510         if (pixels) {
 511                 /* Store the pixel data. */
 512                 nouveau_teximage_map(ctx, ti, GL_MAP_WRITE_BIT,
 513                                      0, 0, ti->Width, ti->Height);
 514
 515                 ret = _mesa_texstore(ctx, dims, ti->_BaseFormat,
 516                                      ti->TexFormat,
 517                                      s->pitch,
 518                                      &nti->base.Map,
 519                                      ti->Width, ti->Height, depth,
 520                                      format, type, pixels, packing);
 521                 assert(ret);
 522
 523                 nouveau_teximage_unmap(ctx, ti);
 524                 _mesa_unmap_teximage_pbo(ctx, packing);
 525
 526                 if (!validate_teximage(ctx, t, level, 0, 0, 0,
 527                                        ti->Width, ti->Height, depth))
 528                         /* It doesn't fit, mark it as dirty. */
 529                         texture_dirty(t);
 530         }
 531
 532         if (level == t->BaseLevel) {
 533                 if (!teximage_fits(t, level))
 534                         relayout_texture(ctx, t);
 535                 nouveau_texture_validate(ctx, t);
 536         }
 537
 538         context_dirty_i(ctx, TEX_OBJ, ctx->Texture.CurrentUnit);
 539         context_dirty_i(ctx, TEX_ENV, ctx->Texture.CurrentUnit);
 540 }
 541
 542
 543 static void
 544 nouveau_teximage_123d(struct gl_context *ctx, GLuint dims,
 545                       struct gl_texture_image *ti,
 546                       GLenum format, GLenum type, const GLvoid *pixels,
 547                       const struct gl_pixelstore_attrib *packing)
 548 {
 549         nouveau_teximage(ctx, dims, ti, 0, format, type, pixels,
 550                          packing, GL_FALSE);
 551 }
 552
 553 static void
 554 nouveau_compressed_teximage(struct gl_context *ctx, GLuint dims,
 555                     struct gl_texture_image *ti,
 556                     GLint internalFormat,
 557                     GLint width, GLint height, GLint depth, GLint border,
 558                     GLsizei imageSize, const GLvoid *data)
 559 {
 560         nouveau_teximage(ctx, 2, ti, imageSize, 0, 0, data,
 561                          &ctx->Unpack, GL_TRUE);
 562 }
 563
 564 static void
 565 nouveau_texsubimage(struct gl_context *ctx, GLint dims,
 566                     struct gl_texture_image *ti,
 567                     GLint xoffset, GLint yoffset, GLint zoffset,
 568                     GLint width, GLint height, GLint depth,
 569                     GLsizei imageSize,
 570                     GLenum format, GLenum type, const void *pixels,
 571                     const struct gl_pixelstore_attrib *packing,
 572                     GLboolean compressed)
 573 {
 574         struct nouveau_surface *s = &to_nouveau_teximage(ti)->surface;
 575         struct nouveau_teximage *nti = to_nouveau_teximage(ti);
 576         int ret;
 577
 578         if (compressed)
 579                 pixels = _mesa_validate_pbo_compressed_teximage(ctx,
 580                                 imageSize,
 581                                 pixels, packing, "glCompressedTexSubImage");
 582         else
 583                 pixels = _mesa_validate_pbo_teximage(ctx,
 584                                 dims, width, height, depth, format, type,
 585                                 pixels, packing, "glTexSubImage");
 586
 587         if (pixels) {
 588                 nouveau_teximage_map(ctx, ti, GL_MAP_WRITE_BIT,
 589                                      xoffset, yoffset, width, height);
 590
 591                 ret = _mesa_texstore(ctx, dims, ti->_BaseFormat, ti->TexFormat,
 592                                      s->pitch,
 593                                      &nti->base.Map,
 594                                      width, height, depth,
 595                                      format, type, pixels, packing);
 596                 assert(ret);
 597
 598                 nouveau_teximage_unmap(ctx, ti);
 599                 _mesa_unmap_teximage_pbo(ctx, packing);
 600         }
 601
 602         if (!to_nouveau_texture(ti->TexObject)->dirty)
 603                 validate_teximage(ctx, ti->TexObject, ti->Level,
 604                                   xoffset, yoffset, zoffset,
 605                                   width, height, depth);
 606 }
 607
 608 static void
 609 nouveau_texsubimage_123d(struct gl_context *ctx, GLuint dims,
 610                          struct gl_texture_image *ti,
 611                          GLint xoffset, GLint yoffset, GLint zoffset,
 612                          GLint width, GLint height, GLint depth,
 613                          GLenum format, GLenum type, const void *pixels,
 614                          const struct gl_pixelstore_attrib *packing)
 615 {
 616         nouveau_texsubimage(ctx, dims, ti, xoffset, yoffset, zoffset,
 617                             width, height, depth, 0, format, type, pixels,
 618                             packing, GL_FALSE);
 619 }
 620
 621 static void
 622 nouveau_compressed_texsubimage(struct gl_context *ctx, GLuint dims,
 623                        struct gl_texture_image *ti,
 624                        GLint xoffset, GLint yoffset, GLint zoffset,
 625                        GLsizei width, GLint height, GLint depth,
 626                        GLenum format,
 627                        GLint imageSize, const void *data)
 628 {
 629         nouveau_texsubimage(ctx, dims, ti, xoffset, yoffset, zoffset,
 630                           width, height, depth, imageSize, format, 0, data,
 631                           &ctx->Unpack, GL_TRUE);
 632 }
 633
 634 static void
 635 nouveau_bind_texture(struct gl_context *ctx, GLenum target,
 636                      struct gl_texture_object *t)
 637 {
 638         context_dirty_i(ctx, TEX_OBJ, ctx->Texture.CurrentUnit);
 639         context_dirty_i(ctx, TEX_ENV, ctx->Texture.CurrentUnit);
 640 }
 641
 642 static gl_format
 643 get_texbuffer_format(struct gl_renderbuffer *rb, GLint format)
 644 {
 645         struct nouveau_surface *s = &to_nouveau_renderbuffer(rb)->surface;
 646
 647         if (s->cpp < 4)
 648                 return s->format;
 649         else if (format == __DRI_TEXTURE_FORMAT_RGBA)
 650                 return MESA_FORMAT_ARGB8888;
 651         else
 652                 return MESA_FORMAT_XRGB8888;
 653 }
 654
 655 void
 656 nouveau_set_texbuffer(__DRIcontext *dri_ctx,
 657                       GLint target, GLint format,
 658                       __DRIdrawable *draw)
 659 {
 660         struct nouveau_context *nctx = dri_ctx->driverPrivate;
 661         struct gl_context *ctx = &nctx->base;
 662         struct gl_framebuffer *fb = draw->driverPrivate;
 663         struct gl_renderbuffer *rb =
 664                 fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer;
 665         struct gl_texture_object *t = _mesa_get_current_tex_object(ctx, target);
 666         struct gl_texture_image *ti;
 667         struct nouveau_teximage *nti;
 668         struct nouveau_surface *s;
 669
 670         _mesa_lock_texture(ctx, t);
 671         ti = _mesa_get_tex_image(ctx, t, target, 0);
 672         nti = to_nouveau_teximage(ti);
 673         s = &to_nouveau_teximage(ti)->surface;
 674
 675         /* Update the texture surface with the given drawable. */
 676         nouveau_update_renderbuffers(dri_ctx, draw);
 677         nouveau_surface_ref(&to_nouveau_renderbuffer(rb)->surface, s);
 678
 679         s->format = get_texbuffer_format(rb, format);
 680
 681         /* Update the image fields. */
 682         _mesa_init_teximage_fields(ctx, ti, s->width, s->height,
 683                                    1, 0, s->cpp, s->format);
 684         nti->base.RowStride = s->pitch / s->cpp;
 685
 686         /* Try to validate it. */
 687         if (!validate_teximage(ctx, t, 0, 0, 0, 0, s->width, s->height, 1))
 688                 nouveau_texture_reallocate(ctx, t);
 689
 690         context_dirty_i(ctx, TEX_OBJ, ctx->Texture.CurrentUnit);
 691         context_dirty_i(ctx, TEX_ENV, ctx->Texture.CurrentUnit);
 692
 693         _mesa_unlock_texture(ctx, t);
 694 }
 695
 696 void
 697 nouveau_texture_functions_init(struct dd_function_table *functions)
 698 {
 699         functions->NewTextureObject = nouveau_texture_new;
 700         functions->DeleteTexture = nouveau_texture_free;
 701         functions->NewTextureImage = nouveau_teximage_new;
 702         functions->FreeTextureImageBuffer = nouveau_teximage_free;
 703         functions->ChooseTextureFormat = nouveau_choose_tex_format;
 704         functions->TexImage = nouveau_teximage_123d;
 705         functions->TexSubImage = nouveau_texsubimage_123d;
 706         functions->CompressedTexImage = nouveau_compressed_teximage;
 707         functions->CompressedTexSubImage = nouveau_compressed_texsubimage;
 708         functions->BindTexture = nouveau_bind_texture;
 709         functions->MapTextureImage = nouveau_map_texture_image;
 710         functions->UnmapTextureImage = nouveau_unmap_texture_image;
 711 }