src/mesa/main/varray.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.6
   4  *
   5  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
   6  * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included
  16  * in all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  22  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  23  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26
  27 #include "glheader.h"
  28 #include "imports.h"
  29 #include "bufferobj.h"
  30 #include "context.h"
  31 #include "enable.h"
  32 #include "enums.h"
  33 #include "hash.h"
  34 #include "image.h"
  35 #include "macros.h"
  36 #include "mfeatures.h"
  37 #include "mtypes.h"
  38 #include "varray.h"
  39 #include "arrayobj.h"
  40 #include "main/dispatch.h"
  41
  42
  43 /** Used to do error checking for GL_EXT_vertex_array_bgra */
  44 #define BGRA_OR_4  5
  45
  46
  47 /** Used to indicate which GL datatypes are accepted by each of the
  48  * glVertex/Color/Attrib/EtcPointer() functions.
  49  */
  50 #define BOOL_BIT             0x1
  51 #define BYTE_BIT             0x2
  52 #define UNSIGNED_BYTE_BIT    0x4
  53 #define SHORT_BIT            0x8
  54 #define UNSIGNED_SHORT_BIT   0x10
  55 #define INT_BIT              0x20
  56 #define UNSIGNED_INT_BIT     0x40
  57 #define HALF_BIT             0x80
  58 #define FLOAT_BIT            0x100
  59 #define DOUBLE_BIT           0x200
  60 #define FIXED_ES_BIT         0x400
  61 #define FIXED_GL_BIT         0x800
  62 #define UNSIGNED_INT_2_10_10_10_REV_BIT 0x1000
  63 #define INT_2_10_10_10_REV_BIT 0x2000
  64
  65
  66 /** Convert GL datatype enum into a <type>_BIT value seen above */
  67 static GLbitfield
  68 type_to_bit(const struct gl_context *ctx, GLenum type)
  69 {
  70    switch (type) {
  71    case GL_BOOL:
  72       return BOOL_BIT;
  73    case GL_BYTE:
  74       return BYTE_BIT;
  75    case GL_UNSIGNED_BYTE:
  76       return UNSIGNED_BYTE_BIT;
  77    case GL_SHORT:
  78       return SHORT_BIT;
  79    case GL_UNSIGNED_SHORT:
  80       return UNSIGNED_SHORT_BIT;
  81    case GL_INT:
  82       return INT_BIT;
  83    case GL_UNSIGNED_INT:
  84       return UNSIGNED_INT_BIT;
  85    case GL_HALF_FLOAT:
  86       if (ctx->Extensions.ARB_half_float_vertex)
  87          return HALF_BIT;
  88       else
  89          return 0x0;
  90    case GL_FLOAT:
  91       return FLOAT_BIT;
  92    case GL_DOUBLE:
  93       return DOUBLE_BIT;
  94    case GL_FIXED:
  95       return _mesa_is_desktop_gl(ctx) ? FIXED_GL_BIT : FIXED_ES_BIT;
  96    case GL_UNSIGNED_INT_2_10_10_10_REV:
  97       return UNSIGNED_INT_2_10_10_10_REV_BIT;
  98    case GL_INT_2_10_10_10_REV:
  99       return INT_2_10_10_10_REV_BIT;
 100    default:
 101       return 0;
 102    }
 103 }
 104
 105
 106 /**
 107  * Do error checking and update state for glVertex/Color/TexCoord/...Pointer
 108  * functions.
 109  *
 110  * \param func  name of calling function used for error reporting
 111  * \param attrib  the attribute array index to update
 112  * \param legalTypes  bitmask of *_BIT above indicating legal datatypes
 113  * \param sizeMin  min allowable size value
 114  * \param sizeMax  max allowable size value (may also be BGRA_OR_4)
 115  * \param size  components per element (1, 2, 3 or 4)
 116  * \param type  datatype of each component (GL_FLOAT, GL_INT, etc)
 117  * \param stride  stride between elements, in elements
 118  * \param normalized  are integer types converted to floats in [-1, 1]?
 119  * \param integer  integer-valued values (will not be normalized to [-1,1])
 120  * \param ptr  the address (or offset inside VBO) of the array data
 121  */
 122 static void
 123 update_array(struct gl_context *ctx,
 124              const char *func,
 125              GLuint attrib, GLbitfield legalTypesMask,
 126              GLint sizeMin, GLint sizeMax,
 127              GLint size, GLenum type, GLsizei stride,
 128              GLboolean normalized, GLboolean integer,
 129              const GLvoid *ptr)
 130 {
 131    struct gl_client_array *array;
 132    GLbitfield typeBit;
 133    GLsizei elementSize;
 134    GLenum format = GL_RGBA;
 135
 136    /* Page 407 (page 423 of the PDF) of the OpenGL 3.0 spec says:
 137     *
 138     *     "Client vertex arrays - all vertex array attribute pointers must
 139     *     refer to buffer objects (section 2.9.2). The default vertex array
 140     *     object (the name zero) is also deprecated. Calling
 141     *     VertexAttribPointer when no buffer object or no vertex array object
 142     *     is bound will generate an INVALID_OPERATION error..."
 143     *
 144     * The check for VBOs is handled below.
 145     */
 146    if (ctx->API == API_OPENGL_CORE
 147        && (ctx->Array.ArrayObj == ctx->Array.DefaultArrayObj)) {
 148       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(no array object bound)",
 149                   func);
 150       return;
 151    }
 152
 153    if (_mesa_is_gles(ctx)) {
 154       /* Once Mesa gets support for GL_OES_vertex_half_float this mask will
 155        * change.  Adding support for this extension isn't quite as trivial as
 156        * we'd like because ES uses a different enum value for GL_HALF_FLOAT.
 157        */
 158       legalTypesMask &= ~(FIXED_GL_BIT | HALF_BIT | DOUBLE_BIT);
 159
 160       /* GL_INT and GL_UNSIGNED_INT data is not allowed in OpenGL ES until
 161        * 3.0.  The 2_10_10_10 types are added in OpenGL ES 3.0 or
 162        * GL_OES_vertex_type_10_10_10_2.
 163        */
 164       if (ctx->Version < 30) {
 165          legalTypesMask &= ~(UNSIGNED_INT_BIT
 166                              | INT_BIT
 167                              | UNSIGNED_INT_2_10_10_10_REV_BIT
 168                              | INT_2_10_10_10_REV_BIT);
 169       }
 170
 171       /* BGRA ordering is not supported in ES contexts.
 172        */
 173       if (sizeMax == BGRA_OR_4)
 174          sizeMax = 4;
 175    } else {
 176       legalTypesMask &= ~FIXED_ES_BIT;
 177
 178       if (!ctx->Extensions.ARB_ES2_compatibility)
 179          legalTypesMask &= ~FIXED_GL_BIT;
 180
 181       if (!ctx->Extensions.ARB_vertex_type_2_10_10_10_rev)
 182          legalTypesMask &= ~(UNSIGNED_INT_2_10_10_10_REV_BIT |
 183                              INT_2_10_10_10_REV_BIT);
 184    }
 185
 186    typeBit = type_to_bit(ctx, type);
 187    if (typeBit == 0x0 || (typeBit & legalTypesMask) == 0x0) {
 188       _mesa_error(ctx, GL_INVALID_ENUM, "%s(type = %s)",
 189                   func, _mesa_lookup_enum_by_nr(type));
 190       return;
 191    }
 192
 193    /* Do size parameter checking.
 194     * If sizeMax = BGRA_OR_4 it means that size = GL_BGRA is legal and
 195     * must be handled specially.
 196     */
 197    if (ctx->Extensions.EXT_vertex_array_bgra &&
 198        sizeMax == BGRA_OR_4 &&
 199        size == GL_BGRA) {
 200       GLboolean bgra_error = GL_FALSE;
 201
 202       if (ctx->Extensions.ARB_vertex_type_2_10_10_10_rev) {
 203          if (type != GL_UNSIGNED_INT_2_10_10_10_REV &&
 204              type != GL_INT_2_10_10_10_REV &&
 205              type != GL_UNSIGNED_BYTE)
 206             bgra_error = GL_TRUE;
 207       } else if (type != GL_UNSIGNED_BYTE)
 208          bgra_error = GL_TRUE;
 209
 210       if (bgra_error) {
 211          _mesa_error(ctx, GL_INVALID_VALUE, "%s(GL_BGRA/GLubyte)", func);
 212          return;
 213       }
 214       format = GL_BGRA;
 215       size = 4;
 216    }
 217    else if (size < sizeMin || size > sizeMax || size > 4) {
 218       _mesa_error(ctx, GL_INVALID_VALUE, "%s(size=%d)", func, size);
 219       return;
 220    }
 221
 222    if (ctx->Extensions.ARB_vertex_type_2_10_10_10_rev &&
 223        (type == GL_UNSIGNED_INT_2_10_10_10_REV ||
 224         type == GL_INT_2_10_10_10_REV) && size != 4) {
 225       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(size=%d)", func, size);
 226       return;
 227    }
 228
 229    ASSERT(size <= 4);
 230
 231    if (stride < 0) {
 232       _mesa_error( ctx, GL_INVALID_VALUE, "%s(stride=%d)", func, stride );
 233       return;
 234    }
 235
 236    /* Page 29 (page 44 of the PDF) of the OpenGL 3.3 spec says:
 237     *
 238     *     "An INVALID_OPERATION error is generated under any of the following
 239     *     conditions:
 240     *
 241     *     ...
 242     *
 243     *     * any of the *Pointer commands specifying the location and
 244     *       organization of vertex array data are called while zero is bound
 245     *       to the ARRAY_BUFFER buffer object binding point (see section
 246     *       2.9.6), and the pointer argument is not NULL."
 247     */
 248    if (ptr != NULL && ctx->Array.ArrayObj->ARBsemantics &&
 249        !_mesa_is_bufferobj(ctx->Array.ArrayBufferObj)) {
 250       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(non-VBO array)", func);
 251       return;
 252    }
 253
 254    elementSize = _mesa_bytes_per_vertex_attrib(size, type);
 255    assert(elementSize != -1);
 256
 257    array = &ctx->Array.ArrayObj->VertexAttrib[attrib];
 258    array->Size = size;
 259    array->Type = type;
 260    array->Format = format;
 261    array->Stride = stride;
 262    array->StrideB = stride ? stride : elementSize;
 263    array->Normalized = normalized;
 264    array->Integer = integer;
 265    array->Ptr = (const GLubyte *) ptr;
 266    array->_ElementSize = elementSize;
 267
 268    _mesa_reference_buffer_object(ctx, &array->BufferObj,
 269                                  ctx->Array.ArrayBufferObj);
 270
 271    ctx->NewState |= _NEW_ARRAY;
 272    ctx->Array.ArrayObj->NewArrays |= VERT_BIT(attrib);
 273 }
 274
 275
 276 void GLAPIENTRY
 277 _mesa_VertexPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr)
 278 {
 279    GET_CURRENT_CONTEXT(ctx);
 280    GLbitfield legalTypes = (ctx->API == API_OPENGLES)
 281       ? (BYTE_BIT | SHORT_BIT | FLOAT_BIT | FIXED_ES_BIT)
 282       : (SHORT_BIT | INT_BIT | FLOAT_BIT |
 283          DOUBLE_BIT | HALF_BIT |
 284          UNSIGNED_INT_2_10_10_10_REV_BIT |
 285          INT_2_10_10_10_REV_BIT);
 286    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 287
 288    update_array(ctx, "glVertexPointer", VERT_ATTRIB_POS,
 289                 legalTypes, 2, 4,
 290                 size, type, stride, GL_FALSE, GL_FALSE, ptr);
 291 }
 292
 293
 294 void GLAPIENTRY
 295 _mesa_NormalPointer(GLenum type, GLsizei stride, const GLvoid *ptr )
 296 {
 297    GET_CURRENT_CONTEXT(ctx);
 298    const GLbitfield legalTypes = (ctx->API == API_OPENGLES)
 299       ? (BYTE_BIT | SHORT_BIT | FLOAT_BIT | FIXED_ES_BIT)
 300       : (BYTE_BIT | SHORT_BIT | INT_BIT |
 301          HALF_BIT | FLOAT_BIT | DOUBLE_BIT |
 302          UNSIGNED_INT_2_10_10_10_REV_BIT |
 303          INT_2_10_10_10_REV_BIT);
 304    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 305
 306    update_array(ctx, "glNormalPointer", VERT_ATTRIB_NORMAL,
 307                 legalTypes, 3, 3,
 308                 3, type, stride, GL_TRUE, GL_FALSE, ptr);
 309 }
 310
 311
 312 void GLAPIENTRY
 313 _mesa_ColorPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr)
 314 {
 315    GET_CURRENT_CONTEXT(ctx);
 316    const GLbitfield legalTypes = (ctx->API == API_OPENGLES)
 317       ? (UNSIGNED_BYTE_BIT | HALF_BIT | FLOAT_BIT | FIXED_ES_BIT)
 318       : (BYTE_BIT | UNSIGNED_BYTE_BIT |
 319          SHORT_BIT | UNSIGNED_SHORT_BIT |
 320          INT_BIT | UNSIGNED_INT_BIT |
 321          HALF_BIT | FLOAT_BIT | DOUBLE_BIT |
 322          UNSIGNED_INT_2_10_10_10_REV_BIT |
 323          INT_2_10_10_10_REV_BIT);
 324    const GLint sizeMin = (ctx->API == API_OPENGLES) ? 4 : 3;
 325    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 326
 327    update_array(ctx, "glColorPointer", VERT_ATTRIB_COLOR0,
 328                 legalTypes, sizeMin, BGRA_OR_4,
 329                 size, type, stride, GL_TRUE, GL_FALSE, ptr);
 330 }
 331
 332
 333 void GLAPIENTRY
 334 _mesa_FogCoordPointer(GLenum type, GLsizei stride, const GLvoid *ptr)
 335 {
 336    const GLbitfield legalTypes = (HALF_BIT | FLOAT_BIT | DOUBLE_BIT);
 337    GET_CURRENT_CONTEXT(ctx);
 338    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 339
 340    update_array(ctx, "glFogCoordPointer", VERT_ATTRIB_FOG,
 341                 legalTypes, 1, 1,
 342                 1, type, stride, GL_FALSE, GL_FALSE, ptr);
 343 }
 344
 345
 346 void GLAPIENTRY
 347 _mesa_IndexPointer(GLenum type, GLsizei stride, const GLvoid *ptr)
 348 {
 349    const GLbitfield legalTypes = (UNSIGNED_BYTE_BIT | SHORT_BIT | INT_BIT |
 350                                   FLOAT_BIT | DOUBLE_BIT);
 351    GET_CURRENT_CONTEXT(ctx);
 352    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 353
 354    update_array(ctx, "glIndexPointer", VERT_ATTRIB_COLOR_INDEX,
 355                 legalTypes, 1, 1,
 356                 1, type, stride, GL_FALSE, GL_FALSE, ptr);
 357 }
 358
 359
 360 void GLAPIENTRY
 361 _mesa_SecondaryColorPointer(GLint size, GLenum type,
 362                                GLsizei stride, const GLvoid *ptr)
 363 {
 364    const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT |
 365                                   SHORT_BIT | UNSIGNED_SHORT_BIT |
 366                                   INT_BIT | UNSIGNED_INT_BIT |
 367                                   HALF_BIT | FLOAT_BIT | DOUBLE_BIT |
 368                                   UNSIGNED_INT_2_10_10_10_REV_BIT |
 369                                   INT_2_10_10_10_REV_BIT);
 370    GET_CURRENT_CONTEXT(ctx);
 371    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 372
 373    update_array(ctx, "glSecondaryColorPointer", VERT_ATTRIB_COLOR1,
 374                 legalTypes, 3, BGRA_OR_4,
 375                 size, type, stride, GL_TRUE, GL_FALSE, ptr);
 376 }
 377
 378
 379 void GLAPIENTRY
 380 _mesa_TexCoordPointer(GLint size, GLenum type, GLsizei stride,
 381                       const GLvoid *ptr)
 382 {
 383    GET_CURRENT_CONTEXT(ctx);
 384    GLbitfield legalTypes = (ctx->API == API_OPENGLES)
 385       ? (BYTE_BIT | SHORT_BIT | FLOAT_BIT | FIXED_ES_BIT)
 386       : (SHORT_BIT | INT_BIT |
 387          HALF_BIT | FLOAT_BIT | DOUBLE_BIT |
 388          UNSIGNED_INT_2_10_10_10_REV_BIT |
 389          INT_2_10_10_10_REV_BIT);
 390    const GLint sizeMin = (ctx->API == API_OPENGLES) ? 2 : 1;
 391    const GLuint unit = ctx->Array.ActiveTexture;
 392    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 393
 394    update_array(ctx, "glTexCoordPointer", VERT_ATTRIB_TEX(unit),
 395                 legalTypes, sizeMin, 4,
 396                 size, type, stride, GL_FALSE, GL_FALSE,
 397                 ptr);
 398 }
 399
 400
 401 void GLAPIENTRY
 402 _mesa_EdgeFlagPointer(GLsizei stride, const GLvoid *ptr)
 403 {
 404    const GLbitfield legalTypes = UNSIGNED_BYTE_BIT;
 405    /* see table 2.4 edits in GL_EXT_gpu_shader4 spec: */
 406    const GLboolean integer = GL_TRUE;
 407    GET_CURRENT_CONTEXT(ctx);
 408    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 409
 410    update_array(ctx, "glEdgeFlagPointer", VERT_ATTRIB_EDGEFLAG,
 411                 legalTypes, 1, 1,
 412                 1, GL_UNSIGNED_BYTE, stride, GL_FALSE, integer, ptr);
 413 }
 414
 415
 416 void GLAPIENTRY
 417 _mesa_PointSizePointerOES(GLenum type, GLsizei stride, const GLvoid *ptr)
 418 {
 419    const GLbitfield legalTypes = (FLOAT_BIT | FIXED_ES_BIT);
 420    GET_CURRENT_CONTEXT(ctx);
 421    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 422
 423    if (ctx->API != API_OPENGLES) {
 424       _mesa_error(ctx, GL_INVALID_OPERATION,
 425                   "glPointSizePointer(ES 1.x only)");
 426       return;
 427    }
 428
 429    update_array(ctx, "glPointSizePointer", VERT_ATTRIB_POINT_SIZE,
 430                 legalTypes, 1, 1,
 431                 1, type, stride, GL_FALSE, GL_FALSE, ptr);
 432 }
 433
 434
 435 /**
 436  * Set a generic vertex attribute array.
 437  * Note that these arrays DO NOT alias the conventional GL vertex arrays
 438  * (position, normal, color, fog, texcoord, etc).
 439  */
 440 void GLAPIENTRY
 441 _mesa_VertexAttribPointer(GLuint index, GLint size, GLenum type,
 442                              GLboolean normalized,
 443                              GLsizei stride, const GLvoid *ptr)
 444 {
 445    const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT |
 446                                   SHORT_BIT | UNSIGNED_SHORT_BIT |
 447                                   INT_BIT | UNSIGNED_INT_BIT |
 448                                   HALF_BIT | FLOAT_BIT | DOUBLE_BIT |
 449                                   FIXED_ES_BIT | FIXED_GL_BIT |
 450                                   UNSIGNED_INT_2_10_10_10_REV_BIT |
 451                                   INT_2_10_10_10_REV_BIT);
 452    GET_CURRENT_CONTEXT(ctx);
 453    ASSERT_OUTSIDE_BEGIN_END(ctx);
 454
 455    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 456       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerARB(index)");
 457       return;
 458    }
 459
 460    update_array(ctx, "glVertexAttribPointer", VERT_ATTRIB_GENERIC(index),
 461                 legalTypes, 1, BGRA_OR_4,
 462                 size, type, stride, normalized, GL_FALSE, ptr);
 463 }
 464
 465
 466 /**
 467  * GL_EXT_gpu_shader4 / GL 3.0.
 468  * Set an integer-valued vertex attribute array.
 469  * Note that these arrays DO NOT alias the conventional GL vertex arrays
 470  * (position, normal, color, fog, texcoord, etc).
 471  */
 472 void GLAPIENTRY
 473 _mesa_VertexAttribIPointer(GLuint index, GLint size, GLenum type,
 474                            GLsizei stride, const GLvoid *ptr)
 475 {
 476    const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT |
 477                                   SHORT_BIT | UNSIGNED_SHORT_BIT |
 478                                   INT_BIT | UNSIGNED_INT_BIT);
 479    const GLboolean normalized = GL_FALSE;
 480    const GLboolean integer = GL_TRUE;
 481    GET_CURRENT_CONTEXT(ctx);
 482    ASSERT_OUTSIDE_BEGIN_END(ctx);
 483
 484    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 485       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribIPointer(index)");
 486       return;
 487    }
 488
 489    update_array(ctx, "glVertexAttribIPointer", VERT_ATTRIB_GENERIC(index),
 490                 legalTypes, 1, 4,
 491                 size, type, stride, normalized, integer, ptr);
 492 }
 493
 494
 495
 496 void GLAPIENTRY
 497 _mesa_EnableVertexAttribArray(GLuint index)
 498 {
 499    struct gl_array_object *arrayObj;
 500    GET_CURRENT_CONTEXT(ctx);
 501    ASSERT_OUTSIDE_BEGIN_END(ctx);
 502
 503    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 504       _mesa_error(ctx, GL_INVALID_VALUE,
 505                   "glEnableVertexAttribArrayARB(index)");
 506       return;
 507    }
 508
 509    arrayObj = ctx->Array.ArrayObj;
 510
 511    ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(arrayObj->VertexAttrib));
 512
 513    if (!arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Enabled) {
 514       /* was disabled, now being enabled */
 515       FLUSH_VERTICES(ctx, _NEW_ARRAY);
 516       arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Enabled = GL_TRUE;
 517       arrayObj->_Enabled |= VERT_BIT_GENERIC(index);
 518       arrayObj->NewArrays |= VERT_BIT_GENERIC(index);
 519    }
 520 }
 521
 522
 523 void GLAPIENTRY
 524 _mesa_DisableVertexAttribArray(GLuint index)
 525 {
 526    struct gl_array_object *arrayObj;
 527    GET_CURRENT_CONTEXT(ctx);
 528    ASSERT_OUTSIDE_BEGIN_END(ctx);
 529
 530    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 531       _mesa_error(ctx, GL_INVALID_VALUE,
 532                   "glDisableVertexAttribArrayARB(index)");
 533       return;
 534    }
 535
 536    arrayObj = ctx->Array.ArrayObj;
 537
 538    ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(arrayObj->VertexAttrib));
 539
 540    if (arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Enabled) {
 541       /* was enabled, now being disabled */
 542       FLUSH_VERTICES(ctx, _NEW_ARRAY);
 543       arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Enabled = GL_FALSE;
 544       arrayObj->_Enabled &= ~VERT_BIT_GENERIC(index);
 545       arrayObj->NewArrays |= VERT_BIT_GENERIC(index);
 546    }
 547 }
 548
 549
 550 /**
 551  * Return info for a vertex attribute array (no alias with legacy
 552  * vertex attributes (pos, normal, color, etc)).  This function does
 553  * not handle the 4-element GL_CURRENT_VERTEX_ATTRIB_ARB query.
 554  */
 555 static GLuint
 556 get_vertex_array_attrib(struct gl_context *ctx, GLuint index, GLenum pname,
 557                   const char *caller)
 558 {
 559    const struct gl_client_array *array;
 560
 561    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 562       _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)", caller, index);
 563       return 0;
 564    }
 565
 566    ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(ctx->Array.ArrayObj->VertexAttrib));
 567
 568    array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)];
 569
 570    switch (pname) {
 571    case GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB:
 572       return array->Enabled;
 573    case GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB:
 574       return array->Size;
 575    case GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB:
 576       return array->Stride;
 577    case GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB:
 578       return array->Type;
 579    case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB:
 580       return array->Normalized;
 581    case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING_ARB:
 582       return array->BufferObj->Name;
 583    case GL_VERTEX_ATTRIB_ARRAY_INTEGER:
 584       if ((_mesa_is_desktop_gl(ctx)
 585            && (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4))
 586           || _mesa_is_gles3(ctx)) {
 587          return array->Integer;
 588       }
 589       goto error;
 590    case GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ARB:
 591       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_instanced_arrays)
 592           || _mesa_is_gles3(ctx)) {
 593          return array->InstanceDivisor;
 594       }
 595       goto error;
 596    default:
 597       ; /* fall-through */
 598    }
 599
 600 error:
 601    _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=0x%x)", caller, pname);
 602    return 0;
 603 }
 604
 605
 606 static const GLfloat *
 607 get_current_attrib(struct gl_context *ctx, GLuint index, const char *function)
 608 {
 609    if (index == 0) {
 610       /* In OpenGL 3.1 attribute 0 becomes non-magic, just like in OpenGL ES
 611        * 2.0.  Note that we cannot just check for API_OPENGL_CORE here because
 612        * that will erroneously allow this usage in a 3.0 forward-compatible
 613        * context too.
 614        */
 615       if ((ctx->API != API_OPENGL_CORE || ctx->Version < 31)
 616           && ctx->API != API_OPENGLES2) {
 617          _mesa_error(ctx, GL_INVALID_OPERATION, "%s(index==0)", function);
 618          return NULL;
 619       }
 620    }
 621    else if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 622       _mesa_error(ctx, GL_INVALID_VALUE,
 623                   "%s(index>=GL_MAX_VERTEX_ATTRIBS)", function);
 624       return NULL;
 625    }
 626
 627    ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(ctx->Array.ArrayObj->VertexAttrib));
 628
 629    FLUSH_CURRENT(ctx, 0);
 630    return ctx->Current.Attrib[VERT_ATTRIB_GENERIC(index)];
 631 }
 632
 633 void GLAPIENTRY
 634 _mesa_GetVertexAttribfv(GLuint index, GLenum pname, GLfloat *params)
 635 {
 636    GET_CURRENT_CONTEXT(ctx);
 637    ASSERT_OUTSIDE_BEGIN_END(ctx);
 638
 639    if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {
 640       const GLfloat *v = get_current_attrib(ctx, index, "glGetVertexAttribfv");
 641       if (v != NULL) {
 642          COPY_4V(params, v);
 643       }
 644    }
 645    else {
 646       params[0] = (GLfloat) get_vertex_array_attrib(ctx, index, pname,
 647                                                     "glGetVertexAttribfv");
 648    }
 649 }
 650
 651
 652 void GLAPIENTRY
 653 _mesa_GetVertexAttribdv(GLuint index, GLenum pname, GLdouble *params)
 654 {
 655    GET_CURRENT_CONTEXT(ctx);
 656    ASSERT_OUTSIDE_BEGIN_END(ctx);
 657
 658    if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {
 659       const GLfloat *v = get_current_attrib(ctx, index, "glGetVertexAttribdv");
 660       if (v != NULL) {
 661          params[0] = (GLdouble) v[0];
 662          params[1] = (GLdouble) v[1];
 663          params[2] = (GLdouble) v[2];
 664          params[3] = (GLdouble) v[3];
 665       }
 666    }
 667    else {
 668       params[0] = (GLdouble) get_vertex_array_attrib(ctx, index, pname,
 669                                                      "glGetVertexAttribdv");
 670    }
 671 }
 672
 673
 674 void GLAPIENTRY
 675 _mesa_GetVertexAttribiv(GLuint index, GLenum pname, GLint *params)
 676 {
 677    GET_CURRENT_CONTEXT(ctx);
 678    ASSERT_OUTSIDE_BEGIN_END(ctx);
 679
 680    if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {
 681       const GLfloat *v = get_current_attrib(ctx, index, "glGetVertexAttribiv");
 682       if (v != NULL) {
 683          /* XXX should floats in[0,1] be scaled to full int range? */
 684          params[0] = (GLint) v[0];
 685          params[1] = (GLint) v[1];
 686          params[2] = (GLint) v[2];
 687          params[3] = (GLint) v[3];
 688       }
 689    }
 690    else {
 691       params[0] = (GLint) get_vertex_array_attrib(ctx, index, pname,
 692                                                   "glGetVertexAttribiv");
 693    }
 694 }
 695
 696
 697 /** GL 3.0 */
 698 void GLAPIENTRY
 699 _mesa_GetVertexAttribIiv(GLuint index, GLenum pname, GLint *params)
 700 {
 701    GET_CURRENT_CONTEXT(ctx);
 702    ASSERT_OUTSIDE_BEGIN_END(ctx);
 703
 704    if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {
 705       const GLint *v = (const GLint *)
 706          get_current_attrib(ctx, index, "glGetVertexAttribIiv");
 707       if (v != NULL) {
 708          COPY_4V(params, v);
 709       }
 710    }
 711    else {
 712       params[0] = (GLint) get_vertex_array_attrib(ctx, index, pname,
 713                                                   "glGetVertexAttribIiv");
 714    }
 715 }
 716
 717
 718 /** GL 3.0 */
 719 void GLAPIENTRY
 720 _mesa_GetVertexAttribIuiv(GLuint index, GLenum pname, GLuint *params)
 721 {
 722    GET_CURRENT_CONTEXT(ctx);
 723    ASSERT_OUTSIDE_BEGIN_END(ctx);
 724
 725    if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {
 726       const GLuint *v = (const GLuint *)
 727          get_current_attrib(ctx, index, "glGetVertexAttribIuiv");
 728       if (v != NULL) {
 729          COPY_4V(params, v);
 730       }
 731    }
 732    else {
 733       params[0] = get_vertex_array_attrib(ctx, index, pname,
 734                                           "glGetVertexAttribIuiv");
 735    }
 736 }
 737
 738
 739 void GLAPIENTRY
 740 _mesa_GetVertexAttribPointerv(GLuint index, GLenum pname, GLvoid **pointer)
 741 {
 742    GET_CURRENT_CONTEXT(ctx);
 743    ASSERT_OUTSIDE_BEGIN_END(ctx);
 744
 745    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 746       _mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribPointerARB(index)");
 747       return;
 748    }
 749
 750    if (pname != GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB) {
 751       _mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribPointerARB(pname)");
 752       return;
 753    }
 754
 755    ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(ctx->Array.ArrayObj->VertexAttrib));
 756
 757    *pointer = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Ptr;
 758 }
 759
 760
 761 void GLAPIENTRY
 762 _mesa_VertexPointerEXT(GLint size, GLenum type, GLsizei stride,
 763                        GLsizei count, const GLvoid *ptr)
 764 {
 765    (void) count;
 766    _mesa_VertexPointer(size, type, stride, ptr);
 767 }
 768
 769
 770 void GLAPIENTRY
 771 _mesa_NormalPointerEXT(GLenum type, GLsizei stride, GLsizei count,
 772                        const GLvoid *ptr)
 773 {
 774    (void) count;
 775    _mesa_NormalPointer(type, stride, ptr);
 776 }
 777
 778
 779 void GLAPIENTRY
 780 _mesa_ColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count,
 781                       const GLvoid *ptr)
 782 {
 783    (void) count;
 784    _mesa_ColorPointer(size, type, stride, ptr);
 785 }
 786
 787
 788 void GLAPIENTRY
 789 _mesa_IndexPointerEXT(GLenum type, GLsizei stride, GLsizei count,
 790                       const GLvoid *ptr)
 791 {
 792    (void) count;
 793    _mesa_IndexPointer(type, stride, ptr);
 794 }
 795
 796
 797 void GLAPIENTRY
 798 _mesa_TexCoordPointerEXT(GLint size, GLenum type, GLsizei stride,
 799                          GLsizei count, const GLvoid *ptr)
 800 {
 801    (void) count;
 802    _mesa_TexCoordPointer(size, type, stride, ptr);
 803 }
 804
 805
 806 void GLAPIENTRY
 807 _mesa_EdgeFlagPointerEXT(GLsizei stride, GLsizei count, const GLboolean *ptr)
 808 {
 809    (void) count;
 810    _mesa_EdgeFlagPointer(stride, ptr);
 811 }
 812
 813
 814 void GLAPIENTRY
 815 _mesa_InterleavedArrays(GLenum format, GLsizei stride, const GLvoid *pointer)
 816 {
 817    GET_CURRENT_CONTEXT(ctx);
 818    GLboolean tflag, cflag, nflag;  /* enable/disable flags */
 819    GLint tcomps, ccomps, vcomps;   /* components per texcoord, color, vertex */
 820    GLenum ctype = 0;               /* color type */
 821    GLint coffset = 0, noffset = 0, voffset;/* color, normal, vertex offsets */
 822    const GLint toffset = 0;        /* always zero */
 823    GLint defstride;                /* default stride */
 824    GLint c, f;
 825
 826    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 827
 828    f = sizeof(GLfloat);
 829    c = f * ((4 * sizeof(GLubyte) + (f - 1)) / f);
 830
 831    if (stride < 0) {
 832       _mesa_error( ctx, GL_INVALID_VALUE, "glInterleavedArrays(stride)" );
 833       return;
 834    }
 835
 836    switch (format) {
 837       case GL_V2F:
 838          tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 839          tcomps = 0;  ccomps = 0;  vcomps = 2;
 840          voffset = 0;
 841          defstride = 2*f;
 842          break;
 843       case GL_V3F:
 844          tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 845          tcomps = 0;  ccomps = 0;  vcomps = 3;
 846          voffset = 0;
 847          defstride = 3*f;
 848          break;
 849       case GL_C4UB_V2F:
 850          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 851          tcomps = 0;  ccomps = 4;  vcomps = 2;
 852          ctype = GL_UNSIGNED_BYTE;
 853          coffset = 0;
 854          voffset = c;
 855          defstride = c + 2*f;
 856          break;
 857       case GL_C4UB_V3F:
 858          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 859          tcomps = 0;  ccomps = 4;  vcomps = 3;
 860          ctype = GL_UNSIGNED_BYTE;
 861          coffset = 0;
 862          voffset = c;
 863          defstride = c + 3*f;
 864          break;
 865       case GL_C3F_V3F:
 866          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 867          tcomps = 0;  ccomps = 3;  vcomps = 3;
 868          ctype = GL_FLOAT;
 869          coffset = 0;
 870          voffset = 3*f;
 871          defstride = 6*f;
 872          break;
 873       case GL_N3F_V3F:
 874          tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_TRUE;
 875          tcomps = 0;  ccomps = 0;  vcomps = 3;
 876          noffset = 0;
 877          voffset = 3*f;
 878          defstride = 6*f;
 879          break;
 880       case GL_C4F_N3F_V3F:
 881          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_TRUE;
 882          tcomps = 0;  ccomps = 4;  vcomps = 3;
 883          ctype = GL_FLOAT;
 884          coffset = 0;
 885          noffset = 4*f;
 886          voffset = 7*f;
 887          defstride = 10*f;
 888          break;
 889       case GL_T2F_V3F:
 890          tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 891          tcomps = 2;  ccomps = 0;  vcomps = 3;
 892          voffset = 2*f;
 893          defstride = 5*f;
 894          break;
 895       case GL_T4F_V4F:
 896          tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 897          tcomps = 4;  ccomps = 0;  vcomps = 4;
 898          voffset = 4*f;
 899          defstride = 8*f;
 900          break;
 901       case GL_T2F_C4UB_V3F:
 902          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 903          tcomps = 2;  ccomps = 4;  vcomps = 3;
 904          ctype = GL_UNSIGNED_BYTE;
 905          coffset = 2*f;
 906          voffset = c+2*f;
 907          defstride = c+5*f;
 908          break;
 909       case GL_T2F_C3F_V3F:
 910          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 911          tcomps = 2;  ccomps = 3;  vcomps = 3;
 912          ctype = GL_FLOAT;
 913          coffset = 2*f;
 914          voffset = 5*f;
 915          defstride = 8*f;
 916          break;
 917       case GL_T2F_N3F_V3F:
 918          tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_TRUE;
 919          tcomps = 2;  ccomps = 0;  vcomps = 3;
 920          noffset = 2*f;
 921          voffset = 5*f;
 922          defstride = 8*f;
 923          break;
 924       case GL_T2F_C4F_N3F_V3F:
 925          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_TRUE;
 926          tcomps = 2;  ccomps = 4;  vcomps = 3;
 927          ctype = GL_FLOAT;
 928          coffset = 2*f;
 929          noffset = 6*f;
 930          voffset = 9*f;
 931          defstride = 12*f;
 932          break;
 933       case GL_T4F_C4F_N3F_V4F:
 934          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_TRUE;
 935          tcomps = 4;  ccomps = 4;  vcomps = 4;
 936          ctype = GL_FLOAT;
 937          coffset = 4*f;
 938          noffset = 8*f;
 939          voffset = 11*f;
 940          defstride = 15*f;
 941          break;
 942       default:
 943          _mesa_error( ctx, GL_INVALID_ENUM, "glInterleavedArrays(format)" );
 944          return;
 945    }
 946
 947    if (stride==0) {
 948       stride = defstride;
 949    }
 950
 951    _mesa_DisableClientState( GL_EDGE_FLAG_ARRAY );
 952    _mesa_DisableClientState( GL_INDEX_ARRAY );
 953    /* XXX also disable secondary color and generic arrays? */
 954
 955    /* Texcoords */
 956    if (tflag) {
 957       _mesa_EnableClientState( GL_TEXTURE_COORD_ARRAY );
 958       _mesa_TexCoordPointer( tcomps, GL_FLOAT, stride,
 959                              (GLubyte *) pointer + toffset );
 960    }
 961    else {
 962       _mesa_DisableClientState( GL_TEXTURE_COORD_ARRAY );
 963    }
 964
 965    /* Color */
 966    if (cflag) {
 967       _mesa_EnableClientState( GL_COLOR_ARRAY );
 968       _mesa_ColorPointer( ccomps, ctype, stride,
 969                           (GLubyte *) pointer + coffset );
 970    }
 971    else {
 972       _mesa_DisableClientState( GL_COLOR_ARRAY );
 973    }
 974
 975
 976    /* Normals */
 977    if (nflag) {
 978       _mesa_EnableClientState( GL_NORMAL_ARRAY );
 979       _mesa_NormalPointer( GL_FLOAT, stride, (GLubyte *) pointer + noffset );
 980    }
 981    else {
 982       _mesa_DisableClientState( GL_NORMAL_ARRAY );
 983    }
 984
 985    /* Vertices */
 986    _mesa_EnableClientState( GL_VERTEX_ARRAY );
 987    _mesa_VertexPointer( vcomps, GL_FLOAT, stride,
 988                         (GLubyte *) pointer + voffset );
 989 }
 990
 991
 992 void GLAPIENTRY
 993 _mesa_LockArraysEXT(GLint first, GLsizei count)
 994 {
 995    GET_CURRENT_CONTEXT(ctx);
 996    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 997
 998    if (MESA_VERBOSE & VERBOSE_API)
 999       _mesa_debug(ctx, "glLockArrays %d %d\n", first, count);
1000
1001    if (first < 0) {
1002       _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(first)" );
1003       return;
1004    }
1005    if (count <= 0) {
1006       _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(count)" );
1007       return;
1008    }
1009    if (ctx->Array.LockCount != 0) {
1010       _mesa_error( ctx, GL_INVALID_OPERATION, "glLockArraysEXT(reentry)" );
1011       return;
1012    }
1013
1014    ctx->Array.LockFirst = first;
1015    ctx->Array.LockCount = count;
1016
1017    ctx->NewState |= _NEW_ARRAY;
1018 }
1019
1020
1021 void GLAPIENTRY
1022 _mesa_UnlockArraysEXT( void )
1023 {
1024    GET_CURRENT_CONTEXT(ctx);
1025    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1026
1027    if (MESA_VERBOSE & VERBOSE_API)
1028       _mesa_debug(ctx, "glUnlockArrays\n");
1029
1030    if (ctx->Array.LockCount == 0) {
1031       _mesa_error( ctx, GL_INVALID_OPERATION, "glUnlockArraysEXT(reexit)" );
1032       return;
1033    }
1034
1035    ctx->Array.LockFirst = 0;
1036    ctx->Array.LockCount = 0;
1037    ctx->NewState |= _NEW_ARRAY;
1038 }
1039
1040
1041 /* GL_EXT_multi_draw_arrays */
1042 void GLAPIENTRY
1043 _mesa_MultiDrawArrays( GLenum mode, const GLint *first,
1044                           const GLsizei *count, GLsizei primcount )
1045 {
1046    GET_CURRENT_CONTEXT(ctx);
1047    GLint i;
1048
1049    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1050
1051    for (i = 0; i < primcount; i++) {
1052       if (count[i] > 0) {
1053          CALL_DrawArrays(ctx->Exec, (mode, first[i], count[i]));
1054       }
1055    }
1056 }
1057
1058
1059 /* GL_IBM_multimode_draw_arrays */
1060 void GLAPIENTRY
1061 _mesa_MultiModeDrawArraysIBM( const GLenum * mode, const GLint * first,
1062                               const GLsizei * count,
1063                               GLsizei primcount, GLint modestride )
1064 {
1065    GET_CURRENT_CONTEXT(ctx);
1066    GLint i;
1067
1068    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1069
1070    for ( i = 0 ; i < primcount ; i++ ) {
1071       if ( count[i] > 0 ) {
1072          GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride));
1073          CALL_DrawArrays(ctx->Exec, ( m, first[i], count[i] ));
1074       }
1075    }
1076 }
1077
1078
1079 /* GL_IBM_multimode_draw_arrays */
1080 void GLAPIENTRY
1081 _mesa_MultiModeDrawElementsIBM( const GLenum * mode, const GLsizei * count,
1082                                 GLenum type, const GLvoid * const * indices,
1083                                 GLsizei primcount, GLint modestride )
1084 {
1085    GET_CURRENT_CONTEXT(ctx);
1086    GLint i;
1087
1088    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1089
1090    /* XXX not sure about ARB_vertex_buffer_object handling here */
1091
1092    for ( i = 0 ; i < primcount ; i++ ) {
1093       if ( count[i] > 0 ) {
1094          GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride));
1095          CALL_DrawElements(ctx->Exec, ( m, count[i], type, indices[i] ));
1096       }
1097    }
1098 }
1099
1100
1101 /**
1102  * GL_NV_primitive_restart and GL 3.1
1103  */
1104 void GLAPIENTRY
1105 _mesa_PrimitiveRestartIndex(GLuint index)
1106 {
1107    GET_CURRENT_CONTEXT(ctx);
1108
1109    if (!ctx->Extensions.NV_primitive_restart && ctx->Version < 31) {
1110       _mesa_error(ctx, GL_INVALID_OPERATION, "glPrimitiveRestartIndexNV()");
1111       return;
1112    }
1113
1114    ASSERT_OUTSIDE_BEGIN_END(ctx);
1115
1116    if (ctx->Array.RestartIndex != index) {
1117       FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
1118       ctx->Array.RestartIndex = index;
1119    }
1120 }
1121
1122
1123 /**
1124  * See GL_ARB_instanced_arrays.
1125  * Note that the instance divisor only applies to generic arrays, not
1126  * the legacy vertex arrays.
1127  */
1128 void GLAPIENTRY
1129 _mesa_VertexAttribDivisor(GLuint index, GLuint divisor)
1130 {
1131    struct gl_client_array *array;
1132    GET_CURRENT_CONTEXT(ctx);
1133    ASSERT_OUTSIDE_BEGIN_END(ctx);
1134
1135    if (!ctx->Extensions.ARB_instanced_arrays) {
1136       _mesa_error(ctx, GL_INVALID_OPERATION, "glVertexAttribDivisor()");
1137       return;
1138    }
1139
1140    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
1141       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribDivisor(index = %u)",
1142                   index);
1143       return;
1144    }
1145
1146    ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(ctx->Array.ArrayObj->VertexAttrib));
1147
1148    array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)];
1149    if (array->InstanceDivisor != divisor) {
1150       FLUSH_VERTICES(ctx, _NEW_ARRAY);
1151       array->InstanceDivisor = divisor;
1152       ctx->Array.ArrayObj->NewArrays |= VERT_BIT(VERT_ATTRIB_GENERIC(index));
1153    }
1154 }
1155
1156
1157
1158 /**
1159  * Copy one client vertex array to another.
1160  */
1161 void
1162 _mesa_copy_client_array(struct gl_context *ctx,
1163                         struct gl_client_array *dst,
1164                         struct gl_client_array *src)
1165 {
1166    dst->Size = src->Size;
1167    dst->Type = src->Type;
1168    dst->Format = src->Format;
1169    dst->Stride = src->Stride;
1170    dst->StrideB = src->StrideB;
1171    dst->Ptr = src->Ptr;
1172    dst->Enabled = src->Enabled;
1173    dst->Normalized = src->Normalized;
1174    dst->Integer = src->Integer;
1175    dst->InstanceDivisor = src->InstanceDivisor;
1176    dst->_ElementSize = src->_ElementSize;
1177    _mesa_reference_buffer_object(ctx, &dst->BufferObj, src->BufferObj);
1178    dst->_MaxElement = src->_MaxElement;
1179 }
1180
1181
1182
1183 /**
1184  * Print vertex array's fields.
1185  */
1186 static void
1187 print_array(const char *name, GLint index, const struct gl_client_array *array)
1188 {
1189    if (index >= 0)
1190       printf("  %s[%d]: ", name, index);
1191    else
1192       printf("  %s: ", name);
1193    printf("Ptr=%p, Type=0x%x, Size=%d, ElemSize=%u, Stride=%d, Buffer=%u(Size %lu), MaxElem=%u\n",
1194           array->Ptr, array->Type, array->Size,
1195           array->_ElementSize, array->StrideB,
1196           array->BufferObj->Name, (unsigned long) array->BufferObj->Size,
1197           array->_MaxElement);
1198 }
1199
1200
1201 /**
1202  * Print current vertex object/array info.  For debug.
1203  */
1204 void
1205 _mesa_print_arrays(struct gl_context *ctx)
1206 {
1207    struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
1208    GLuint i;
1209
1210    _mesa_update_array_object_max_element(ctx, arrayObj);
1211
1212    printf("Array Object %u\n", arrayObj->Name);
1213    if (arrayObj->VertexAttrib[VERT_ATTRIB_POS].Enabled)
1214       print_array("Vertex", -1, &arrayObj->VertexAttrib[VERT_ATTRIB_POS]);
1215    if (arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled)
1216       print_array("Normal", -1, &arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL]);
1217    if (arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled)
1218       print_array("Color", -1, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0]);
1219    for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++)
1220       if (arrayObj->VertexAttrib[VERT_ATTRIB_TEX(i)].Enabled)
1221          print_array("TexCoord", i, &arrayObj->VertexAttrib[VERT_ATTRIB_TEX(i)]);
1222    for (i = 0; i < VERT_ATTRIB_GENERIC_MAX; i++)
1223       if (arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(i)].Enabled)
1224          print_array("Attrib", i, &arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(i)]);
1225    printf("  _MaxElement = %u\n", arrayObj->_MaxElement);
1226 }
1227
1228
1229 /**
1230  * Initialize vertex array state for given context.
1231  */
1232 void
1233 _mesa_init_varray(struct gl_context *ctx)
1234 {
1235    ctx->Array.DefaultArrayObj = ctx->Driver.NewArrayObject(ctx, 0);
1236    _mesa_reference_array_object(ctx, &ctx->Array.ArrayObj,
1237                                 ctx->Array.DefaultArrayObj);
1238    ctx->Array.ActiveTexture = 0;   /* GL_ARB_multitexture */
1239
1240    ctx->Array.Objects = _mesa_NewHashTable();
1241 }
1242
1243
1244 /**
1245  * Callback for deleting an array object.  Called by _mesa_HashDeleteAll().
1246  */
1247 static void
1248 delete_arrayobj_cb(GLuint id, void *data, void *userData)
1249 {
1250    struct gl_array_object *arrayObj = (struct gl_array_object *) data;
1251    struct gl_context *ctx = (struct gl_context *) userData;
1252    _mesa_delete_array_object(ctx, arrayObj);
1253 }
1254
1255
1256 /**
1257  * Free vertex array state for given context.
1258  */
1259 void
1260 _mesa_free_varray_data(struct gl_context *ctx)
1261 {
1262    _mesa_HashDeleteAll(ctx->Array.Objects, delete_arrayobj_cb, ctx);
1263    _mesa_DeleteHashTable(ctx->Array.Objects);
1264 }