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_map_texture_image(struct gl_context *ctx,
  84                           struct gl_texture_image *ti,
  85                           GLuint slice,
  86                           GLuint x, GLuint y, GLuint w, GLuint h,
  87                           GLbitfield mode,
  88                           GLubyte **map,
  89                           GLint *stride)
  90 {
  91         struct nouveau_teximage *nti = to_nouveau_teximage(ti);
  92         struct nouveau_surface *s = &nti->surface;
  93         struct nouveau_surface *st = &nti->transfer.surface;
  94         struct nouveau_client *client = context_client(ctx);
  95
  96         /* Nouveau has no support for 3D or cubemap textures. */
  97         assert(slice == 0);
  98
  99         if (s->bo) {
 100                 if (!(mode & GL_MAP_READ_BIT) &&
 101                     nouveau_pushbuf_refd(context_push(ctx), s->bo)) {
 102                         unsigned size;
 103                         /*
 104                          * Heuristic: use a bounce buffer to pipeline
 105                          * teximage transfers.
 106                          */
 107                         st->layout = LINEAR;
 108                         st->format = s->format;
 109                         st->cpp = s->cpp;
 110                         st->width = w;
 111                         st->height = h;
 112                         st->pitch = s->pitch;
 113                         nti->transfer.x = x;
 114                         nti->transfer.y = y;
 115
 116                         size = get_format_blocksy(st->format, h) * st->pitch;
 117                         *map = nouveau_get_scratch(ctx, size,
 118                                           &st->bo, &st->offset);
 119                         *stride = st->pitch;
 120                 } else {
 121                         int ret, flags = 0;
 122
 123                         if (mode & GL_MAP_READ_BIT)
 124                                 flags |= NOUVEAU_BO_RD;
 125                         if (mode & GL_MAP_WRITE_BIT)
 126                                 flags |= NOUVEAU_BO_WR;
 127
 128                         if (!s->bo->map) {
 129                                 ret = nouveau_bo_map(s->bo, flags, client);
 130                                 assert(!ret);
 131                         }
 132
 133                         *map = s->bo->map +
 134                                 get_format_blocksy(s->format, y) * s->pitch +
 135                                 get_format_blocksx(s->format, x) * s->cpp;
 136                         *stride = s->pitch;
 137                 }
 138         } else {
 139                 *map = nti->base.Map +
 140                         get_format_blocksy(s->format, y) * s->pitch +
 141                         get_format_blocksx(s->format, x) * s->cpp;
 142                 *stride = s->pitch;
 143         }
 144 }
 145
 146 static void
 147 nouveau_unmap_texture_image(struct gl_context *ctx, struct gl_texture_image *ti,
 148                             GLuint slice)
 149 {
 150         struct nouveau_teximage *nti = to_nouveau_teximage(ti);
 151         struct nouveau_surface *s = &nti->surface;
 152         struct nouveau_surface *st = &nti->transfer.surface;
 153
 154         if (st->bo) {
 155                 context_drv(ctx)->surface_copy(ctx, s, st, nti->transfer.x,
 156                                                nti->transfer.y, 0, 0,
 157                                                st->width, st->height);
 158                 nouveau_surface_ref(NULL, st);
 159
 160         }
 161
 162         nti->base.Map = NULL;
 163 }
 164
 165 static gl_format
 166 nouveau_choose_tex_format(struct gl_context *ctx, GLenum target,
 167                           GLint internalFormat,
 168                           GLenum srcFormat, GLenum srcType)
 169 {
 170         switch (internalFormat) {
 171         case 4:
 172         case GL_RGBA:
 173         case GL_RGBA2:
 174         case GL_RGBA4:
 175         case GL_RGBA8:
 176         case GL_RGBA12:
 177         case GL_RGBA16:
 178         case GL_RGB10_A2:
 179         case GL_COMPRESSED_RGBA:
 180                 return MESA_FORMAT_ARGB8888;
 181         case GL_RGB5_A1:
 182                 return MESA_FORMAT_ARGB1555;
 183
 184         case GL_RGB:
 185         case GL_RGB8:
 186         case GL_RGB10:
 187         case GL_RGB12:
 188         case GL_RGB16:
 189         case GL_COMPRESSED_RGB:
 190                 return MESA_FORMAT_XRGB8888;
 191         case 3:
 192         case GL_R3_G3_B2:
 193         case GL_RGB4:
 194         case GL_RGB5:
 195                 return MESA_FORMAT_RGB565;
 196
 197         case 2:
 198         case GL_LUMINANCE_ALPHA:
 199         case GL_LUMINANCE4_ALPHA4:
 200         case GL_LUMINANCE6_ALPHA2:
 201         case GL_LUMINANCE12_ALPHA4:
 202         case GL_LUMINANCE12_ALPHA12:
 203         case GL_LUMINANCE16_ALPHA16:
 204         case GL_LUMINANCE8_ALPHA8:
 205         case GL_COMPRESSED_LUMINANCE_ALPHA:
 206                 return MESA_FORMAT_ARGB8888;
 207
 208         case 1:
 209         case GL_LUMINANCE:
 210         case GL_LUMINANCE4:
 211         case GL_LUMINANCE12:
 212         case GL_LUMINANCE16:
 213         case GL_LUMINANCE8:
 214         case GL_COMPRESSED_LUMINANCE:
 215                 return MESA_FORMAT_L8;
 216
 217         case GL_ALPHA:
 218         case GL_ALPHA4:
 219         case GL_ALPHA12:
 220         case GL_ALPHA16:
 221         case GL_ALPHA8:
 222         case GL_COMPRESSED_ALPHA:
 223                 return MESA_FORMAT_A8;
 224
 225         case GL_INTENSITY:
 226         case GL_INTENSITY4:
 227         case GL_INTENSITY12:
 228         case GL_INTENSITY16:
 229         case GL_INTENSITY8:
 230                 return MESA_FORMAT_I8;
 231
 232         case GL_RGB_S3TC:
 233         case GL_RGB4_S3TC:
 234         case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
 235                 return MESA_FORMAT_RGB_DXT1;
 236
 237         case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
 238                 return MESA_FORMAT_RGBA_DXT1;
 239
 240         case GL_RGBA_S3TC:
 241         case GL_RGBA4_S3TC:
 242         case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
 243                 return MESA_FORMAT_RGBA_DXT3;
 244
 245         case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
 246                 return MESA_FORMAT_RGBA_DXT5;
 247
 248         default:
 249                 assert(0);
 250         }
 251 }
 252
 253 static GLboolean
 254 teximage_fits(struct gl_texture_object *t, int level)
 255 {
 256         struct nouveau_surface *s = &to_nouveau_texture(t)->surfaces[level];
 257         struct gl_texture_image *ti = t->Image[0][level];
 258
 259         if (!ti || !to_nouveau_teximage(ti)->surface.bo)
 260                 return GL_FALSE;
 261
 262         if (level == t->BaseLevel && (s->offset & 0x7f))
 263                 return GL_FALSE;
 264
 265         return t->Target == GL_TEXTURE_RECTANGLE ||
 266                 (s->bo && s->format == ti->TexFormat &&
 267                  s->width == ti->Width && s->height == ti->Height);
 268 }
 269
 270 static GLboolean
 271 validate_teximage(struct gl_context *ctx, struct gl_texture_object *t,
 272                   int level, int x, int y, int z,
 273                   int width, int height, int depth)
 274 {
 275         struct gl_texture_image *ti = t->Image[0][level];
 276
 277         if (teximage_fits(t, level)) {
 278                 struct nouveau_surface *ss = to_nouveau_texture(t)->surfaces;
 279                 struct nouveau_surface *s = &to_nouveau_teximage(ti)->surface;
 280
 281                 if (t->Target == GL_TEXTURE_RECTANGLE)
 282                         nouveau_surface_ref(s, &ss[level]);
 283                 else
 284                         context_drv(ctx)->surface_copy(ctx, &ss[level], s,
 285                                                        x, y, x, y,
 286                                                        width, height);
 287
 288                 return GL_TRUE;
 289         }
 290
 291         return GL_FALSE;
 292 }
 293
 294 static int
 295 get_last_level(struct gl_texture_object *t)
 296 {
 297         struct gl_texture_image *base = t->Image[0][t->BaseLevel];
 298
 299         if (t->Sampler.MinFilter == GL_NEAREST ||
 300             t->Sampler.MinFilter == GL_LINEAR || !base)
 301                 return t->BaseLevel;
 302         else
 303                 return MIN2(t->BaseLevel + base->MaxNumLevels - 1, t->MaxLevel);
 304 }
 305
 306 static void
 307 relayout_texture(struct gl_context *ctx, struct gl_texture_object *t)
 308 {
 309         struct gl_texture_image *base = t->Image[0][t->BaseLevel];
 310
 311         if (base && t->Target != GL_TEXTURE_RECTANGLE) {
 312                 struct nouveau_surface *ss = to_nouveau_texture(t)->surfaces;
 313                 struct nouveau_surface *s = &to_nouveau_teximage(base)->surface;
 314                 int i, ret, last = get_last_level(t);
 315                 enum nouveau_surface_layout layout =
 316                         (_mesa_is_format_compressed(s->format) ? LINEAR : SWIZZLED);
 317                 unsigned size, pitch, offset = 0,
 318                         width = s->width,
 319                         height = s->height;
 320
 321                 /* Deallocate the old storage. */
 322                 for (i = 0; i < MAX_TEXTURE_LEVELS; i++)
 323                         nouveau_bo_ref(NULL, &ss[i].bo);
 324
 325                 /* Relayout the mipmap tree. */
 326                 for (i = t->BaseLevel; i <= last; i++) {
 327                         pitch = _mesa_format_row_stride(s->format, width);
 328                         size = get_format_blocksy(s->format, height) * pitch;
 329
 330                         /* Images larger than 16B have to be aligned. */
 331                         if (size > 16)
 332                                 offset = align(offset, 64);
 333
 334                         ss[i] = (struct nouveau_surface) {
 335                                 .offset = offset,
 336                                 .layout = layout,
 337                                 .format = s->format,
 338                                 .width = width,
 339                                 .height = height,
 340                                 .cpp = s->cpp,
 341                                 .pitch = pitch,
 342                         };
 343
 344                         offset += size;
 345                         width = minify(width, 1);
 346                         height = minify(height, 1);
 347                 }
 348
 349                 /* Get new storage. */
 350                 size = align(offset, 64);
 351
 352                 ret = nouveau_bo_new(context_dev(ctx), NOUVEAU_BO_MAP |
 353                                      NOUVEAU_BO_GART | NOUVEAU_BO_VRAM,
 354                                      0, size, NULL, &ss[last].bo);
 355                 assert(!ret);
 356
 357                 for (i = t->BaseLevel; i < last; i++)
 358                         nouveau_bo_ref(ss[last].bo, &ss[i].bo);
 359         }
 360 }
 361
 362 GLboolean
 363 nouveau_texture_validate(struct gl_context *ctx, struct gl_texture_object *t)
 364 {
 365         struct nouveau_texture *nt = to_nouveau_texture(t);
 366         int i, last = get_last_level(t);
 367
 368         if (!teximage_fits(t, t->BaseLevel) ||
 369             !teximage_fits(t, last))
 370                 return GL_FALSE;
 371
 372         if (nt->dirty) {
 373                 nt->dirty = GL_FALSE;
 374
 375                 /* Copy the teximages to the actual miptree. */
 376                 for (i = t->BaseLevel; i <= last; i++) {
 377                         struct nouveau_surface *s = &nt->surfaces[i];
 378
 379                         validate_teximage(ctx, t, i, 0, 0, 0,
 380                                           s->width, s->height, 1);
 381                 }
 382
 383                 PUSH_KICK(context_push(ctx));
 384         }
 385
 386         return GL_TRUE;
 387 }
 388
 389 void
 390 nouveau_texture_reallocate(struct gl_context *ctx, struct gl_texture_object *t)
 391 {
 392         if (!teximage_fits(t, t->BaseLevel) ||
 393             !teximage_fits(t, get_last_level(t))) {
 394                 texture_dirty(t);
 395                 relayout_texture(ctx, t);
 396                 nouveau_texture_validate(ctx, t);
 397         }
 398 }
 399
 400 static unsigned
 401 get_teximage_placement(struct gl_texture_image *ti)
 402 {
 403         if (ti->TexFormat == MESA_FORMAT_A8 ||
 404             ti->TexFormat == MESA_FORMAT_L8 ||
 405             ti->TexFormat == MESA_FORMAT_I8)
 406                 /* 1 cpp formats will have to be swizzled by the CPU,
 407                  * so leave them in system RAM for now. */
 408                 return NOUVEAU_BO_MAP;
 409         else
 410                 return NOUVEAU_BO_GART | NOUVEAU_BO_MAP;
 411 }
 412
 413 static void
 414 nouveau_teximage(struct gl_context *ctx, GLint dims,
 415                  struct gl_texture_image *ti,
 416                  GLsizei imageSize,
 417                  GLenum format, GLenum type, const GLvoid *pixels,
 418                  const struct gl_pixelstore_attrib *packing,
 419                  GLboolean compressed)
 420 {
 421         struct gl_texture_object *t = ti->TexObject;
 422         const GLuint level = ti->Level;
 423         struct nouveau_surface *s = &to_nouveau_teximage(ti)->surface;
 424         struct nouveau_teximage *nti = to_nouveau_teximage(ti);
 425         int ret;
 426         GLuint depth = compressed ? 1 : ti->Depth;
 427
 428         /* Allocate a new bo for the image. */
 429         nouveau_surface_alloc(ctx, s, LINEAR, get_teximage_placement(ti),
 430                               ti->TexFormat, ti->Width, ti->Height);
 431         nti->base.RowStride = s->pitch / s->cpp;
 432
 433         if (compressed)
 434                 pixels = _mesa_validate_pbo_compressed_teximage(ctx,
 435                         dims, imageSize,
 436                         pixels, packing, "glCompressedTexImage");
 437         else
 438                 pixels = _mesa_validate_pbo_teximage(ctx,
 439                         dims, ti->Width, ti->Height, depth, format, type,
 440                         pixels, packing, "glTexImage");
 441
 442         if (pixels) {
 443                 GLubyte *map;
 444                 int row_stride;
 445
 446                 /* Store the pixel data. */
 447                 nouveau_map_texture_image(ctx, ti, 0,
 448                                           0, 0, ti->Width, ti->Height,
 449                                           GL_MAP_WRITE_BIT,
 450                                           &map, &row_stride);
 451
 452                 ret = _mesa_texstore(ctx, dims, ti->_BaseFormat,
 453                                      ti->TexFormat,
 454                                      row_stride,
 455                                      &map,
 456                                      ti->Width, ti->Height, depth,
 457                                      format, type, pixels, packing);
 458                 assert(ret);
 459
 460                 nouveau_unmap_texture_image(ctx, ti, 0);
 461                 _mesa_unmap_teximage_pbo(ctx, packing);
 462
 463                 if (!validate_teximage(ctx, t, level, 0, 0, 0,
 464                                        ti->Width, ti->Height, depth))
 465                         /* It doesn't fit, mark it as dirty. */
 466                         texture_dirty(t);
 467         }
 468
 469         if (level == t->BaseLevel) {
 470                 if (!teximage_fits(t, level))
 471                         relayout_texture(ctx, t);
 472                 nouveau_texture_validate(ctx, t);
 473         }
 474
 475         context_dirty_i(ctx, TEX_OBJ, ctx->Texture.CurrentUnit);
 476         context_dirty_i(ctx, TEX_ENV, ctx->Texture.CurrentUnit);
 477 }
 478
 479
 480 static void
 481 nouveau_teximage_123d(struct gl_context *ctx, GLuint dims,
 482                       struct gl_texture_image *ti,
 483                       GLenum format, GLenum type, const GLvoid *pixels,
 484                       const struct gl_pixelstore_attrib *packing)
 485 {
 486         nouveau_teximage(ctx, dims, ti, 0, format, type, pixels,
 487                          packing, GL_FALSE);
 488 }
 489
 490 static void
 491 nouveau_compressed_teximage(struct gl_context *ctx, GLuint dims,
 492                     struct gl_texture_image *ti,
 493                     GLsizei imageSize, const GLvoid *data)
 494 {
 495         nouveau_teximage(ctx, 2, ti, imageSize, 0, 0, data,
 496                          &ctx->Unpack, GL_TRUE);
 497 }
 498
 499 static void
 500 nouveau_texsubimage(struct gl_context *ctx, GLint dims,
 501                     struct gl_texture_image *ti,
 502                     GLint xoffset, GLint yoffset, GLint zoffset,
 503                     GLint width, GLint height, GLint depth,
 504                     GLsizei imageSize,
 505                     GLenum format, GLenum type, const void *pixels,
 506                     const struct gl_pixelstore_attrib *packing,
 507                     GLboolean compressed)
 508 {
 509         int ret;
 510
 511         if (compressed)
 512                 pixels = _mesa_validate_pbo_compressed_teximage(ctx,
 513                                 dims, imageSize,
 514                                 pixels, packing, "glCompressedTexSubImage");
 515         else
 516                 pixels = _mesa_validate_pbo_teximage(ctx,
 517                                 dims, width, height, depth, format, type,
 518                                 pixels, packing, "glTexSubImage");
 519
 520         if (pixels) {
 521                 GLubyte *map;
 522                 int row_stride;
 523
 524                 nouveau_map_texture_image(ctx, ti, 0,
 525                                           xoffset, yoffset, width, height,
 526                                           GL_MAP_WRITE_BIT, &map, &row_stride);
 527
 528                 ret = _mesa_texstore(ctx, dims, ti->_BaseFormat, ti->TexFormat,
 529                                      row_stride, &map,
 530                                      width, height, depth,
 531                                      format, type, pixels, packing);
 532                 assert(ret);
 533
 534                 nouveau_unmap_texture_image(ctx, ti, 0);
 535                 _mesa_unmap_teximage_pbo(ctx, packing);
 536         }
 537
 538         if (!to_nouveau_texture(ti->TexObject)->dirty)
 539                 validate_teximage(ctx, ti->TexObject, ti->Level,
 540                                   xoffset, yoffset, zoffset,
 541                                   width, height, depth);
 542 }
 543
 544 static void
 545 nouveau_texsubimage_123d(struct gl_context *ctx, GLuint dims,
 546                          struct gl_texture_image *ti,
 547                          GLint xoffset, GLint yoffset, GLint zoffset,
 548                          GLint width, GLint height, GLint depth,
 549                          GLenum format, GLenum type, const void *pixels,
 550                          const struct gl_pixelstore_attrib *packing)
 551 {
 552         nouveau_texsubimage(ctx, dims, ti, xoffset, yoffset, zoffset,
 553                             width, height, depth, 0, format, type, pixels,
 554                             packing, GL_FALSE);
 555 }
 556
 557 static void
 558 nouveau_compressed_texsubimage(struct gl_context *ctx, GLuint dims,
 559                        struct gl_texture_image *ti,
 560                        GLint xoffset, GLint yoffset, GLint zoffset,
 561                        GLsizei width, GLint height, GLint depth,
 562                        GLenum format,
 563                        GLint imageSize, const void *data)
 564 {
 565         nouveau_texsubimage(ctx, dims, ti, xoffset, yoffset, zoffset,
 566                           width, height, depth, imageSize, format, 0, data,
 567                           &ctx->Unpack, GL_TRUE);
 568 }
 569
 570 static void
 571 nouveau_bind_texture(struct gl_context *ctx, GLenum target,
 572                      struct gl_texture_object *t)
 573 {
 574         context_dirty_i(ctx, TEX_OBJ, ctx->Texture.CurrentUnit);
 575         context_dirty_i(ctx, TEX_ENV, ctx->Texture.CurrentUnit);
 576 }
 577
 578 static gl_format
 579 get_texbuffer_format(struct gl_renderbuffer *rb, GLint format)
 580 {
 581         struct nouveau_surface *s = &to_nouveau_renderbuffer(rb)->surface;
 582
 583         if (s->cpp < 4)
 584                 return s->format;
 585         else if (format == __DRI_TEXTURE_FORMAT_RGBA)
 586                 return MESA_FORMAT_ARGB8888;
 587         else
 588                 return MESA_FORMAT_XRGB8888;
 589 }
 590
 591 void
 592 nouveau_set_texbuffer(__DRIcontext *dri_ctx,
 593                       GLint target, GLint format,
 594                       __DRIdrawable *draw)
 595 {
 596         struct nouveau_context *nctx = dri_ctx->driverPrivate;
 597         struct gl_context *ctx = &nctx->base;
 598         struct gl_framebuffer *fb = draw->driverPrivate;
 599         struct gl_renderbuffer *rb =
 600                 fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer;
 601         struct gl_texture_object *t = _mesa_get_current_tex_object(ctx, target);
 602         struct gl_texture_image *ti;
 603         struct nouveau_teximage *nti;
 604         struct nouveau_surface *s;
 605
 606         _mesa_lock_texture(ctx, t);
 607         ti = _mesa_get_tex_image(ctx, t, target, 0);
 608         nti = to_nouveau_teximage(ti);
 609         s = &to_nouveau_teximage(ti)->surface;
 610
 611         /* Update the texture surface with the given drawable. */
 612         nouveau_update_renderbuffers(dri_ctx, draw);
 613         nouveau_surface_ref(&to_nouveau_renderbuffer(rb)->surface, s);
 614
 615         s->format = get_texbuffer_format(rb, format);
 616
 617         /* Update the image fields. */
 618         _mesa_init_teximage_fields(ctx, ti, s->width, s->height,
 619                                    1, 0, s->cpp, s->format);
 620         nti->base.RowStride = s->pitch / s->cpp;
 621
 622         /* Try to validate it. */
 623         if (!validate_teximage(ctx, t, 0, 0, 0, 0, s->width, s->height, 1))
 624                 nouveau_texture_reallocate(ctx, t);
 625
 626         context_dirty_i(ctx, TEX_OBJ, ctx->Texture.CurrentUnit);
 627         context_dirty_i(ctx, TEX_ENV, ctx->Texture.CurrentUnit);
 628
 629         _mesa_unlock_texture(ctx, t);
 630 }
 631
 632 void
 633 nouveau_texture_functions_init(struct dd_function_table *functions)
 634 {
 635         functions->NewTextureObject = nouveau_texture_new;
 636         functions->DeleteTexture = nouveau_texture_free;
 637         functions->NewTextureImage = nouveau_teximage_new;
 638         functions->FreeTextureImageBuffer = nouveau_teximage_free;
 639         functions->ChooseTextureFormat = nouveau_choose_tex_format;
 640         functions->TexImage = nouveau_teximage_123d;
 641         functions->TexSubImage = nouveau_texsubimage_123d;
 642         functions->CompressedTexImage = nouveau_compressed_teximage;
 643         functions->CompressedTexSubImage = nouveau_compressed_texsubimage;
 644         functions->BindTexture = nouveau_bind_texture;
 645         functions->MapTextureImage = nouveau_map_texture_image;
 646         functions->UnmapTextureImage = nouveau_unmap_texture_image;
 647 }