src/mesa/main/texstorage.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2011  VMware, Inc.  All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25
  26 /**
  27  * \file texstorage.c
  28  * GL_ARB_texture_storage functions
  29  */
  30
  31
  32
  33 #include "glheader.h"
  34 #include "context.h"
  35 #include "enums.h"
  36 #include "imports.h"
  37 #include "macros.h"
  38 #include "teximage.h"
  39 #include "texobj.h"
  40 #include "mipmap.h"
  41 #include "texstorage.h"
  42 #include "textureview.h"
  43 #include "mtypes.h"
  44
  45
  46
  47 /**
  48  * Check if the given texture target is a legal texture object target
  49  * for a glTexStorage() command.
  50  * This is a bit different than legal_teximage_target() when it comes
  51  * to cube maps.
  52  */
  53 static GLboolean
  54 legal_texobj_target(struct gl_context *ctx, GLuint dims, GLenum target)
  55 {
  56    switch (dims) {
  57    case 1:
  58       switch (target) {
  59       case GL_TEXTURE_1D:
  60       case GL_PROXY_TEXTURE_1D:
  61          return GL_TRUE;
  62       default:
  63          return GL_FALSE;
  64       }
  65    case 2:
  66       switch (target) {
  67       case GL_TEXTURE_2D:
  68       case GL_PROXY_TEXTURE_2D:
  69          return GL_TRUE;
  70       case GL_TEXTURE_CUBE_MAP:
  71       case GL_PROXY_TEXTURE_CUBE_MAP:
  72          return ctx->Extensions.ARB_texture_cube_map;
  73       case GL_TEXTURE_RECTANGLE:
  74       case GL_PROXY_TEXTURE_RECTANGLE:
  75          return ctx->Extensions.NV_texture_rectangle;
  76       case GL_TEXTURE_1D_ARRAY:
  77       case GL_PROXY_TEXTURE_1D_ARRAY:
  78          return ctx->Extensions.EXT_texture_array;
  79       default:
  80          return GL_FALSE;
  81       }
  82    case 3:
  83       switch (target) {
  84       case GL_TEXTURE_3D:
  85       case GL_PROXY_TEXTURE_3D:
  86          return GL_TRUE;
  87       case GL_TEXTURE_2D_ARRAY:
  88       case GL_PROXY_TEXTURE_2D_ARRAY:
  89          return ctx->Extensions.EXT_texture_array;
  90       case GL_TEXTURE_CUBE_MAP_ARRAY:
  91       case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
  92          return ctx->Extensions.ARB_texture_cube_map_array;
  93       default:
  94          return GL_FALSE;
  95       }
  96    default:
  97       _mesa_problem(ctx, "invalid dims=%u in legal_texobj_target()", dims);
  98       return GL_FALSE;
  99    }
 100 }
 101
 102
 103 /** Helper to get a particular texture image in a texture object */
 104 static struct gl_texture_image *
 105 get_tex_image(struct gl_context *ctx,
 106               struct gl_texture_object *texObj,
 107               GLuint face, GLuint level)
 108 {
 109    const GLenum faceTarget =
 110       (texObj->Target == GL_TEXTURE_CUBE_MAP ||
 111        texObj->Target == GL_PROXY_TEXTURE_CUBE_MAP)
 112       ? GL_TEXTURE_CUBE_MAP_POSITIVE_X + face : texObj->Target;
 113    return _mesa_get_tex_image(ctx, texObj, faceTarget, level);
 114 }
 115
 116
 117
 118 static GLboolean
 119 initialize_texture_fields(struct gl_context *ctx,
 120                           struct gl_texture_object *texObj,
 121                           GLint levels,
 122                           GLsizei width, GLsizei height, GLsizei depth,
 123                           GLenum internalFormat, gl_format texFormat)
 124 {
 125    const GLenum target = texObj->Target;
 126    const GLuint numFaces = _mesa_num_tex_faces(target);
 127    GLint level, levelWidth = width, levelHeight = height, levelDepth = depth;
 128    GLuint face;
 129
 130    /* Set up all the texture object's gl_texture_images */
 131    for (level = 0; level < levels; level++) {
 132       for (face = 0; face < numFaces; face++) {
 133          struct gl_texture_image *texImage =
 134             get_tex_image(ctx, texObj, face, level);
 135
 136          if (!texImage) {
 137             _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexStorage");
 138             return GL_FALSE;
 139          }
 140
 141          _mesa_init_teximage_fields(ctx, texImage,
 142                                     levelWidth, levelHeight, levelDepth,
 143                                     0, internalFormat, texFormat);
 144       }
 145
 146       _mesa_next_mipmap_level_size(target, 0, levelWidth, levelHeight, levelDepth,
 147                                    &levelWidth, &levelHeight, &levelDepth);
 148    }
 149    return GL_TRUE;
 150 }
 151
 152
 153 /**
 154  * Clear all fields of texture object to zeros.  Used for proxy texture tests.
 155  * Used for proxy texture tests (and to clean up when a texture memory
 156  * allocation fails).
 157  */
 158 static void
 159 clear_texture_fields(struct gl_context *ctx,
 160                      struct gl_texture_object *texObj)
 161 {
 162    const GLenum target = texObj->Target;
 163    const GLuint numFaces = _mesa_num_tex_faces(target);
 164    GLint level;
 165    GLuint face;
 166
 167    for (level = 0; level < Elements(texObj->Image[0]); level++) {
 168       for (face = 0; face < numFaces; face++) {
 169          struct gl_texture_image *texImage =
 170             get_tex_image(ctx, texObj, face, level);
 171
 172          if (!texImage) {
 173             _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexStorage");
 174             return;
 175          }
 176
 177          _mesa_init_teximage_fields(ctx, texImage,
 178                                     0, 0, 0, 0, /* w, h, d, border */
 179                                     GL_NONE, MESA_FORMAT_NONE);
 180       }
 181    }
 182 }
 183
 184
 185 GLboolean
 186 _mesa_is_legal_tex_storage_format(struct gl_context *ctx, GLenum internalformat)
 187 {
 188    /* check internal format - note that only sized formats are allowed */
 189    switch (internalformat) {
 190    case GL_ALPHA:
 191    case GL_LUMINANCE:
 192    case GL_LUMINANCE_ALPHA:
 193    case GL_INTENSITY:
 194    case GL_RED:
 195    case GL_RG:
 196    case GL_RGB:
 197    case GL_RGBA:
 198    case GL_BGRA:
 199    case GL_DEPTH_COMPONENT:
 200    case GL_DEPTH_STENCIL:
 201    case GL_COMPRESSED_ALPHA:
 202    case GL_COMPRESSED_LUMINANCE_ALPHA:
 203    case GL_COMPRESSED_LUMINANCE:
 204    case GL_COMPRESSED_INTENSITY:
 205    case GL_COMPRESSED_RGB:
 206    case GL_COMPRESSED_RGBA:
 207    case GL_COMPRESSED_SRGB:
 208    case GL_COMPRESSED_SRGB_ALPHA:
 209    case GL_COMPRESSED_SLUMINANCE:
 210    case GL_COMPRESSED_SLUMINANCE_ALPHA:
 211    case GL_RED_INTEGER:
 212    case GL_GREEN_INTEGER:
 213    case GL_BLUE_INTEGER:
 214    case GL_ALPHA_INTEGER:
 215    case GL_RGB_INTEGER:
 216    case GL_RGBA_INTEGER:
 217    case GL_BGR_INTEGER:
 218    case GL_BGRA_INTEGER:
 219    case GL_LUMINANCE_INTEGER_EXT:
 220    case GL_LUMINANCE_ALPHA_INTEGER_EXT:
 221       /* these unsized formats are illegal */
 222       return GL_FALSE;
 223    default:
 224       return _mesa_base_tex_format(ctx, internalformat) > 0;
 225    }
 226 }
 227
 228 /**
 229  * Default ctx->Driver.AllocTextureStorage() handler.
 230  *
 231  * The driver can override this with a more specific implementation if it
 232  * desires, but this can be used to get the texture images allocated using the
 233  * usual texture image handling code.  The immutability of
 234  * GL_ARB_texture_storage texture layouts is handled by texObj->Immutable
 235  * checks at glTexImage* time.
 236  */
 237 GLboolean
 238 _mesa_alloc_texture_storage(struct gl_context *ctx,
 239                             struct gl_texture_object *texObj,
 240                             GLsizei levels, GLsizei width,
 241                             GLsizei height, GLsizei depth)
 242 {
 243    const int numFaces = _mesa_num_tex_faces(texObj->Target);
 244    int face;
 245    int level;
 246
 247    (void) width;
 248    (void) height;
 249    (void) depth;
 250
 251    for (face = 0; face < numFaces; face++) {
 252       for (level = 0; level < levels; level++) {
 253          struct gl_texture_image *const texImage = texObj->Image[face][level];
 254          if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage))
 255             return GL_FALSE;
 256       }
 257    }
 258
 259    return GL_TRUE;
 260 }
 261
 262
 263 /**
 264  * Do error checking for calls to glTexStorage1/2/3D().
 265  * If an error is found, record it with _mesa_error(), unless the target
 266  * is a proxy texture.
 267  * \return GL_TRUE if any error, GL_FALSE otherwise.
 268  */
 269 static GLboolean
 270 tex_storage_error_check(struct gl_context *ctx, GLuint dims, GLenum target,
 271                         GLsizei levels, GLenum internalformat,
 272                         GLsizei width, GLsizei height, GLsizei depth)
 273 {
 274    struct gl_texture_object *texObj;
 275
 276    if (!_mesa_is_legal_tex_storage_format(ctx, internalformat)) {
 277       _mesa_error(ctx, GL_INVALID_ENUM,
 278                   "glTexStorage%uD(internalformat = %s)", dims,
 279                   _mesa_lookup_enum_by_nr(internalformat));
 280       return GL_TRUE;
 281    }
 282
 283    /* size check */
 284    if (width < 1 || height < 1 || depth < 1) {
 285       _mesa_error(ctx, GL_INVALID_VALUE,
 286                   "glTexStorage%uD(width, height or depth < 1)", dims);
 287       return GL_TRUE;
 288    }
 289
 290    /* target check */
 291    if (!legal_texobj_target(ctx, dims, target)) {
 292       _mesa_error(ctx, GL_INVALID_ENUM,
 293                   "glTexStorage%uD(illegal target=%s)",
 294                   dims, _mesa_lookup_enum_by_nr(target));
 295       return GL_TRUE;
 296    }
 297
 298    /* levels check */
 299    if (levels < 1) {
 300       _mesa_error(ctx, GL_INVALID_VALUE, "glTexStorage%uD(levels < 1)",
 301                   dims);
 302       return GL_TRUE;
 303    }
 304
 305    /* check levels against maximum (note different error than above) */
 306    if (levels > (GLint) _mesa_max_texture_levels(ctx, target)) {
 307       _mesa_error(ctx, GL_INVALID_OPERATION,
 308                   "glTexStorage%uD(levels too large)", dims);
 309       return GL_TRUE;
 310    }
 311
 312    /* check levels against width/height/depth */
 313    if (levels > _mesa_get_tex_max_num_levels(target, width, height, depth)) {
 314       _mesa_error(ctx, GL_INVALID_OPERATION,
 315                   "glTexStorage%uD(too many levels for max texture dimension)",
 316                   dims);
 317       return GL_TRUE;
 318    }
 319
 320    /* non-default texture object check */
 321    texObj = _mesa_get_current_tex_object(ctx, target);
 322    if (!_mesa_is_proxy_texture(target) && (!texObj || (texObj->Name == 0))) {
 323       _mesa_error(ctx, GL_INVALID_OPERATION,
 324                   "glTexStorage%uD(texture object 0)", dims);
 325       return GL_TRUE;
 326    }
 327
 328    /* Check if texObj->Immutable is set */
 329    if (!_mesa_is_proxy_texture(target) && texObj->Immutable) {
 330       _mesa_error(ctx, GL_INVALID_OPERATION, "glTexStorage%uD(immutable)",
 331                   dims);
 332       return GL_TRUE;
 333    }
 334
 335    return GL_FALSE;
 336 }
 337
 338
 339 /**
 340  * Helper used by _mesa_TexStorage1/2/3D().
 341  */
 342 static void
 343 texstorage(GLuint dims, GLenum target, GLsizei levels, GLenum internalformat,
 344            GLsizei width, GLsizei height, GLsizei depth)
 345 {
 346    struct gl_texture_object *texObj;
 347    GLboolean sizeOK, dimensionsOK;
 348    gl_format texFormat;
 349
 350    GET_CURRENT_CONTEXT(ctx);
 351
 352    if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
 353       _mesa_debug(ctx, "glTexStorage%uD %s %d %s %d %d %d\n",
 354                   dims,
 355                   _mesa_lookup_enum_by_nr(target), levels,
 356                   _mesa_lookup_enum_by_nr(internalformat),
 357                   width, height, depth);
 358
 359    if (tex_storage_error_check(ctx, dims, target, levels,
 360                                internalformat, width, height, depth)) {
 361       return; /* error was recorded */
 362    }
 363
 364    texObj = _mesa_get_current_tex_object(ctx, target);
 365    assert(texObj);
 366
 367    texFormat = _mesa_choose_texture_format(ctx, texObj, target, 0,
 368                                            internalformat, GL_NONE, GL_NONE);
 369    assert(texFormat != MESA_FORMAT_NONE);
 370
 371    /* check that width, height, depth are legal for the mipmap level */
 372    dimensionsOK = _mesa_legal_texture_dimensions(ctx, target, 0,
 373                                                   width, height, depth, 0);
 374
 375    sizeOK = ctx->Driver.TestProxyTexImage(ctx, target, 0, texFormat,
 376                                           width, height, depth, 0);
 377
 378    if (_mesa_is_proxy_texture(texObj->Target)) {
 379       if (dimensionsOK && sizeOK) {
 380          initialize_texture_fields(ctx, texObj, levels, width, height, depth,
 381                                    internalformat, texFormat);
 382       }
 383       else {
 384          /* clear all image fields for [levels] */
 385          clear_texture_fields(ctx, texObj);
 386       }
 387    }
 388    else {
 389       if (!dimensionsOK) {
 390          _mesa_error(ctx, GL_INVALID_VALUE,
 391                      "glTexStorage%uD(invalid width, height or depth)", dims);
 392          return;
 393       }
 394
 395       if (!sizeOK) {
 396          _mesa_error(ctx, GL_OUT_OF_MEMORY,
 397                      "glTexStorage%uD(texture too large)", dims);
 398       }
 399
 400       assert(levels > 0);
 401       assert(width > 0);
 402       assert(height > 0);
 403       assert(depth > 0);
 404
 405       if (!initialize_texture_fields(ctx, texObj, levels, width, height, depth,
 406                                      internalformat, texFormat)) {
 407          return;
 408       }
 409
 410       /* Do actual texture memory allocation */
 411       if (!ctx->Driver.AllocTextureStorage(ctx, texObj, levels,
 412                                            width, height, depth)) {
 413          /* Reset the texture images' info to zeros.
 414           * Strictly speaking, we probably don't have to do this since
 415           * generating GL_OUT_OF_MEMORY can leave things in an undefined
 416           * state but this puts things in a consistent state.
 417           */
 418          clear_texture_fields(ctx, texObj);
 419          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexStorage%uD", dims);
 420          return;
 421       }
 422
 423       _mesa_set_texture_view_state(ctx, texObj, target, levels);
 424
 425    }
 426 }
 427
 428
 429 void GLAPIENTRY
 430 _mesa_TexStorage1D(GLenum target, GLsizei levels, GLenum internalformat,
 431                    GLsizei width)
 432 {
 433    texstorage(1, target, levels, internalformat, width, 1, 1);
 434 }
 435
 436
 437 void GLAPIENTRY
 438 _mesa_TexStorage2D(GLenum target, GLsizei levels, GLenum internalformat,
 439                    GLsizei width, GLsizei height)
 440 {
 441    texstorage(2, target, levels, internalformat, width, height, 1);
 442 }
 443
 444
 445 void GLAPIENTRY
 446 _mesa_TexStorage3D(GLenum target, GLsizei levels, GLenum internalformat,
 447                    GLsizei width, GLsizei height, GLsizei depth)
 448 {
 449    texstorage(3, target, levels, internalformat, width, height, depth);
 450 }
 451
 452
 453
 454 /*
 455  * Note: we don't support GL_EXT_direct_state_access and the spec says
 456  * we don't need the following functions.  However, glew checks for the
 457  * presence of all six functions and will say that GL_ARB_texture_storage
 458  * is not supported if these functions are missing.
 459  */
 460
 461
 462 void GLAPIENTRY
 463 _mesa_TextureStorage1DEXT(GLuint texture, GLenum target, GLsizei levels,
 464                           GLenum internalformat,
 465                           GLsizei width)
 466 {
 467    (void) texture;
 468    (void) target;
 469    (void) levels;
 470    (void) internalformat;
 471    (void) width;
 472    /* no-op */
 473 }
 474
 475
 476 void GLAPIENTRY
 477 _mesa_TextureStorage2DEXT(GLuint texture, GLenum target, GLsizei levels,
 478                           GLenum internalformat,
 479                           GLsizei width, GLsizei height)
 480 {
 481    (void) texture;
 482    (void) target;
 483    (void) levels;
 484    (void) internalformat;
 485    (void) width;
 486    (void) height;
 487    /* no-op */
 488 }
 489
 490
 491
 492 void GLAPIENTRY
 493 _mesa_TextureStorage3DEXT(GLuint texture, GLenum target, GLsizei levels,
 494                           GLenum internalformat,
 495                           GLsizei width, GLsizei height, GLsizei depth)
 496 {
 497    (void) texture;
 498    (void) target;
 499    (void) levels;
 500    (void) internalformat;
 501    (void) width;
 502    (void) height;
 503    (void) depth;
 504    /* no-op */
 505 }