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 "mtypes.h"
  35 #include "varray.h"
  36 #include "arrayobj.h"
  37 #include "main/dispatch.h"
  38
  39
  40 /**
  41  * Set the fields of a vertex array.
  42  * Also do an error check for GL_ARB_vertex_array_object: check that
  43  * all arrays reside in VBOs when using a vertex array object.
  44  *
  45  * \param array  the array to update
  46  * \param dirtyBit  which bit to set in ctx->Array.NewState for this array
  47  * \param elementSize  size of each array element, in bytes
  48  * \param size  components per element (1, 2, 3 or 4)
  49  * \param type  datatype of each component (GL_FLOAT, GL_INT, etc)
  50  * \param format  either GL_RGBA or GL_BGRA
  51  * \param stride  stride between elements, in elements
  52  * \param normalized  are integer types converted to floats in [-1, 1]?
  53  * \param ptr  the address (or offset inside VBO) of the array data
  54  */
  55 static void
  56 update_array(GLcontext *ctx, struct gl_client_array *array,
  57              GLbitfield dirtyBit, GLsizei elementSize,
  58              GLint size, GLenum type, GLenum format,
  59              GLsizei stride, GLboolean normalized, const GLvoid *ptr)
  60 {
  61    ASSERT(format == GL_RGBA || format == GL_BGRA);
  62
  63    if (ctx->Array.ArrayObj->VBOonly &&
  64        ctx->Array.ArrayBufferObj->Name == 0) {
  65       /* GL_ARB_vertex_array_object requires that all arrays reside in VBOs.
  66        * Generate GL_INVALID_OPERATION if that's not true.
  67        */
  68       _mesa_error(ctx, GL_INVALID_OPERATION,
  69                   "glVertex/Normal/EtcPointer(non-VBO array)");
  70       return;
  71    }
  72
  73    array->Size = size;
  74    array->Type = type;
  75    array->Format = format;
  76    array->Stride = stride;
  77    array->StrideB = stride ? stride : elementSize;
  78    array->Normalized = normalized;
  79    array->Ptr = (const GLubyte *) ptr;
  80    array->_ElementSize = elementSize;
  81
  82    _mesa_reference_buffer_object(ctx, &array->BufferObj,
  83                                  ctx->Array.ArrayBufferObj);
  84
  85    ctx->NewState |= _NEW_ARRAY;
  86    ctx->Array.NewState |= dirtyBit;
  87 }
  88
  89
  90 void GLAPIENTRY
  91 _mesa_VertexPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr)
  92 {
  93    GLsizei elementSize;
  94    GET_CURRENT_CONTEXT(ctx);
  95    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
  96
  97    if (size < 2 || size > 4) {
  98       _mesa_error( ctx, GL_INVALID_VALUE, "glVertexPointer(size)" );
  99       return;
 100    }
 101    if (stride < 0) {
 102       _mesa_error( ctx, GL_INVALID_VALUE, "glVertexPointer(stride)" );
 103       return;
 104    }
 105
 106    if (MESA_VERBOSE&(VERBOSE_VARRAY|VERBOSE_API))
 107       _mesa_debug(ctx, "glVertexPointer( sz %d type %s stride %d )\n", size,
 108                   _mesa_lookup_enum_by_nr( type ), stride);
 109
 110    /* always need to check that <type> is legal */
 111    switch (type) {
 112       case GL_SHORT:
 113          elementSize = size * sizeof(GLshort);
 114          break;
 115       case GL_INT:
 116          elementSize = size * sizeof(GLint);
 117          break;
 118       case GL_FLOAT:
 119          elementSize = size * sizeof(GLfloat);
 120          break;
 121       case GL_DOUBLE:
 122          elementSize = size * sizeof(GLdouble);
 123          break;
 124       case GL_HALF_FLOAT:
 125          elementSize = size * sizeof(GLhalfARB);
 126          break;
 127 #if FEATURE_fixedpt
 128       case GL_FIXED:
 129          elementSize = size * sizeof(GLfixed);
 130          break;
 131 #endif
 132 #if FEATURE_vertex_array_byte
 133       case GL_BYTE:
 134          elementSize = size * sizeof(GLbyte);
 135          break;
 136 #endif
 137       default:
 138          _mesa_error( ctx, GL_INVALID_ENUM, "glVertexPointer(type=%s)",
 139                       _mesa_lookup_enum_by_nr(type));
 140          return;
 141    }
 142
 143    update_array(ctx, &ctx->Array.ArrayObj->Vertex, _NEW_ARRAY_VERTEX,
 144                 elementSize, size, type, GL_RGBA, stride, GL_FALSE, ptr);
 145 }
 146
 147
 148 void GLAPIENTRY
 149 _mesa_NormalPointer(GLenum type, GLsizei stride, const GLvoid *ptr )
 150 {
 151    GLsizei elementSize;
 152    GET_CURRENT_CONTEXT(ctx);
 153    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 154
 155    if (stride < 0) {
 156       _mesa_error( ctx, GL_INVALID_VALUE, "glNormalPointer(stride)" );
 157       return;
 158    }
 159
 160    if (MESA_VERBOSE&(VERBOSE_VARRAY|VERBOSE_API))
 161       _mesa_debug(ctx, "glNormalPointer( type %s stride %d )\n",
 162                   _mesa_lookup_enum_by_nr( type ), stride);
 163
 164    switch (type) {
 165       case GL_BYTE:
 166          elementSize = 3 * sizeof(GLbyte);
 167          break;
 168       case GL_SHORT:
 169          elementSize = 3 * sizeof(GLshort);
 170          break;
 171       case GL_INT:
 172          elementSize = 3 * sizeof(GLint);
 173          break;
 174       case GL_FLOAT:
 175          elementSize = 3 * sizeof(GLfloat);
 176          break;
 177       case GL_DOUBLE:
 178          elementSize = 3 * sizeof(GLdouble);
 179          break;
 180       case GL_HALF_FLOAT:
 181          elementSize = 3 * sizeof(GLhalfARB);
 182          break;
 183 #if FEATURE_fixedpt
 184       case GL_FIXED:
 185          elementSize = 3 * sizeof(GLfixed);
 186          break;
 187 #endif
 188       default:
 189          _mesa_error( ctx, GL_INVALID_ENUM, "glNormalPointer(type=%s)",
 190                       _mesa_lookup_enum_by_nr(type));
 191          return;
 192    }
 193
 194    update_array(ctx, &ctx->Array.ArrayObj->Normal, _NEW_ARRAY_NORMAL,
 195                 elementSize, 3, type, GL_RGBA, stride, GL_TRUE, ptr);
 196 }
 197
 198
 199 void GLAPIENTRY
 200 _mesa_ColorPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr)
 201 {
 202    GLsizei elementSize;
 203    GLenum format;
 204    GET_CURRENT_CONTEXT(ctx);
 205    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 206
 207    if (size < 3 || size > 4) {
 208       if (!ctx->Extensions.EXT_vertex_array_bgra || size != GL_BGRA) {
 209          _mesa_error(ctx, GL_INVALID_VALUE, "glColorPointer(size)");
 210          return;
 211       }
 212    }
 213    if (stride < 0) {
 214       _mesa_error( ctx, GL_INVALID_VALUE, "glColorPointer(stride)" );
 215       return;
 216    }
 217
 218    if (MESA_VERBOSE&(VERBOSE_VARRAY|VERBOSE_API))
 219       _mesa_debug(ctx, "glColorPointer( sz %d type %s stride %d )\n", size,
 220                   _mesa_lookup_enum_by_nr( type ), stride);
 221
 222    if (size == GL_BGRA) {
 223       if (type != GL_UNSIGNED_BYTE) {
 224          _mesa_error(ctx, GL_INVALID_VALUE, "glColorPointer(GL_BGRA/GLubyte)");
 225          return;
 226       }
 227       format = GL_BGRA;
 228       size = 4;
 229    }
 230    else {
 231       format = GL_RGBA;
 232    }
 233
 234    switch (type) {
 235       case GL_BYTE:
 236          elementSize = size * sizeof(GLbyte);
 237          break;
 238       case GL_UNSIGNED_BYTE:
 239          elementSize = size * sizeof(GLubyte);
 240          break;
 241       case GL_SHORT:
 242          elementSize = size * sizeof(GLshort);
 243          break;
 244       case GL_UNSIGNED_SHORT:
 245          elementSize = size * sizeof(GLushort);
 246          break;
 247       case GL_INT:
 248          elementSize = size * sizeof(GLint);
 249          break;
 250       case GL_UNSIGNED_INT:
 251          elementSize = size * sizeof(GLuint);
 252          break;
 253       case GL_FLOAT:
 254          elementSize = size * sizeof(GLfloat);
 255          break;
 256       case GL_DOUBLE:
 257          elementSize = size * sizeof(GLdouble);
 258          break;
 259       case GL_HALF_FLOAT:
 260          elementSize = size * sizeof(GLhalfARB);
 261          break;
 262 #if FEATURE_fixedpt
 263       case GL_FIXED:
 264          elementSize = size * sizeof(GLfixed);
 265          break;
 266 #endif
 267       default:
 268          _mesa_error( ctx, GL_INVALID_ENUM, "glColorPointer(type=%s)",
 269                       _mesa_lookup_enum_by_nr(type));
 270          return;
 271    }
 272
 273    update_array(ctx, &ctx->Array.ArrayObj->Color, _NEW_ARRAY_COLOR0,
 274                 elementSize, size, type, format, stride, GL_TRUE, ptr);
 275 }
 276
 277
 278 void GLAPIENTRY
 279 _mesa_FogCoordPointerEXT(GLenum type, GLsizei stride, const GLvoid *ptr)
 280 {
 281    GLint elementSize;
 282    GET_CURRENT_CONTEXT(ctx);
 283    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 284
 285    if (stride < 0) {
 286       _mesa_error( ctx, GL_INVALID_VALUE, "glFogCoordPointer(stride)" );
 287       return;
 288    }
 289
 290    switch (type) {
 291       case GL_FLOAT:
 292          elementSize = sizeof(GLfloat);
 293          break;
 294       case GL_DOUBLE:
 295          elementSize = sizeof(GLdouble);
 296          break;
 297       case GL_HALF_FLOAT:
 298          elementSize = sizeof(GLhalfARB);
 299          break;
 300       default:
 301          _mesa_error( ctx, GL_INVALID_ENUM, "glFogCoordPointer(type)" );
 302          return;
 303    }
 304
 305    update_array(ctx, &ctx->Array.ArrayObj->FogCoord, _NEW_ARRAY_FOGCOORD,
 306                 elementSize, 1, type, GL_RGBA, stride, GL_FALSE, ptr);
 307 }
 308
 309
 310 void GLAPIENTRY
 311 _mesa_IndexPointer(GLenum type, GLsizei stride, const GLvoid *ptr)
 312 {
 313    GLsizei elementSize;
 314    GET_CURRENT_CONTEXT(ctx);
 315    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 316
 317    if (stride < 0) {
 318       _mesa_error( ctx, GL_INVALID_VALUE, "glIndexPointer(stride)" );
 319       return;
 320    }
 321
 322    switch (type) {
 323       case GL_UNSIGNED_BYTE:
 324          elementSize = sizeof(GLubyte);
 325          break;
 326       case GL_SHORT:
 327          elementSize = sizeof(GLshort);
 328          break;
 329       case GL_INT:
 330          elementSize = sizeof(GLint);
 331          break;
 332       case GL_FLOAT:
 333          elementSize = sizeof(GLfloat);
 334          break;
 335       case GL_DOUBLE:
 336          elementSize = sizeof(GLdouble);
 337          break;
 338       default:
 339          _mesa_error( ctx, GL_INVALID_ENUM, "glIndexPointer(type)" );
 340          return;
 341    }
 342
 343    update_array(ctx, &ctx->Array.ArrayObj->Index, _NEW_ARRAY_INDEX,
 344                 elementSize, 1, type, GL_RGBA, stride, GL_FALSE, ptr);
 345 }
 346
 347
 348 void GLAPIENTRY
 349 _mesa_SecondaryColorPointerEXT(GLint size, GLenum type,
 350                                GLsizei stride, const GLvoid *ptr)
 351 {
 352    GLsizei elementSize;
 353    GLenum format;
 354    GET_CURRENT_CONTEXT(ctx);
 355    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 356
 357    if (size != 3 && size != 4) {
 358       if (!ctx->Extensions.EXT_vertex_array_bgra || size != GL_BGRA) {
 359          _mesa_error(ctx, GL_INVALID_VALUE, "glSecondaryColorPointer(size)");
 360          return;
 361       }
 362    }
 363    if (stride < 0) {
 364       _mesa_error( ctx, GL_INVALID_VALUE, "glSecondaryColorPointer(stride)" );
 365       return;
 366    }
 367
 368    if (MESA_VERBOSE&(VERBOSE_VARRAY|VERBOSE_API))
 369       _mesa_debug(ctx, "glSecondaryColorPointer( sz %d type %s stride %d )\n",
 370                   size, _mesa_lookup_enum_by_nr( type ), stride);
 371
 372    if (size == GL_BGRA) {
 373       if (type != GL_UNSIGNED_BYTE) {
 374          _mesa_error(ctx, GL_INVALID_VALUE, "glColorPointer(GL_BGRA/GLubyte)");
 375          return;
 376       }
 377       format = GL_BGRA;
 378       size = 4;
 379    }
 380    else {
 381       format = GL_RGBA;
 382    }
 383
 384    switch (type) {
 385       case GL_BYTE:
 386          elementSize = size * sizeof(GLbyte);
 387          break;
 388       case GL_UNSIGNED_BYTE:
 389          elementSize = size * sizeof(GLubyte);
 390          break;
 391       case GL_SHORT:
 392          elementSize = size * sizeof(GLshort);
 393          break;
 394       case GL_UNSIGNED_SHORT:
 395          elementSize = size * sizeof(GLushort);
 396          break;
 397       case GL_INT:
 398          elementSize = size * sizeof(GLint);
 399          break;
 400       case GL_UNSIGNED_INT:
 401          elementSize = size * sizeof(GLuint);
 402          break;
 403       case GL_FLOAT:
 404          elementSize = size * sizeof(GLfloat);
 405          break;
 406       case GL_DOUBLE:
 407          elementSize = size * sizeof(GLdouble);
 408          break;
 409       case GL_HALF_FLOAT:
 410          elementSize = size * sizeof(GLhalfARB);
 411          break;
 412       default:
 413          _mesa_error( ctx, GL_INVALID_ENUM, "glSecondaryColorPointer(type=%s)",
 414                       _mesa_lookup_enum_by_nr(type));
 415          return;
 416    }
 417
 418    update_array(ctx, &ctx->Array.ArrayObj->SecondaryColor, _NEW_ARRAY_COLOR1,
 419                 elementSize, size, type, format, stride, GL_TRUE, ptr);
 420 }
 421
 422
 423 void GLAPIENTRY
 424 _mesa_TexCoordPointer(GLint size, GLenum type, GLsizei stride,
 425                       const GLvoid *ptr)
 426 {
 427    GLint elementSize;
 428    GET_CURRENT_CONTEXT(ctx);
 429    const GLuint unit = ctx->Array.ActiveTexture;
 430    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 431
 432    if (size < 1 || size > 4) {
 433       _mesa_error( ctx, GL_INVALID_VALUE, "glTexCoordPointer(size)" );
 434       return;
 435    }
 436    if (stride < 0) {
 437       _mesa_error( ctx, GL_INVALID_VALUE, "glTexCoordPointer(stride)" );
 438       return;
 439    }
 440
 441    if (MESA_VERBOSE&(VERBOSE_VARRAY|VERBOSE_API))
 442       _mesa_debug(ctx, "glTexCoordPointer(unit %u sz %d type %s stride %d)\n",
 443                   unit, size, _mesa_lookup_enum_by_nr( type ), stride);
 444
 445    /* always need to check that <type> is legal */
 446    switch (type) {
 447       case GL_SHORT:
 448          elementSize = size * sizeof(GLshort);
 449          break;
 450       case GL_INT:
 451          elementSize = size * sizeof(GLint);
 452          break;
 453       case GL_FLOAT:
 454          elementSize = size * sizeof(GLfloat);
 455          break;
 456       case GL_DOUBLE:
 457          elementSize = size * sizeof(GLdouble);
 458          break;
 459       case GL_HALF_FLOAT:
 460          elementSize = size * sizeof(GLhalfARB);
 461          break;
 462 #if FEATURE_fixedpt
 463       case GL_FIXED:
 464          elementSize = size * sizeof(GLfixed);
 465          break;
 466 #endif
 467 #if FEATURE_vertex_array_byte
 468       case GL_BYTE:
 469          elementSize = size * sizeof(GLbyte);
 470          break;
 471 #endif
 472       default:
 473          _mesa_error( ctx, GL_INVALID_ENUM, "glTexCoordPointer(type=%s)",
 474                       _mesa_lookup_enum_by_nr(type));
 475          return;
 476    }
 477
 478    ASSERT(unit < Elements(ctx->Array.ArrayObj->TexCoord));
 479
 480    update_array(ctx, &ctx->Array.ArrayObj->TexCoord[unit],
 481                 _NEW_ARRAY_TEXCOORD(unit),
 482                 elementSize, size, type, GL_RGBA, stride, GL_FALSE, ptr);
 483 }
 484
 485
 486 void GLAPIENTRY
 487 _mesa_EdgeFlagPointer(GLsizei stride, const GLvoid *ptr)
 488 {
 489    GET_CURRENT_CONTEXT(ctx);
 490    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 491
 492    if (stride < 0) {
 493       _mesa_error( ctx, GL_INVALID_VALUE, "glEdgeFlagPointer(stride)" );
 494       return;
 495    }
 496
 497    update_array(ctx, &ctx->Array.ArrayObj->EdgeFlag, _NEW_ARRAY_EDGEFLAG,
 498                 sizeof(GLboolean), 1, GL_UNSIGNED_BYTE, GL_RGBA,
 499                 stride, GL_FALSE, ptr);
 500 }
 501
 502
 503 void GLAPIENTRY
 504 _mesa_PointSizePointer(GLenum type, GLsizei stride, const GLvoid *ptr)
 505 {
 506    GLsizei elementSize;
 507    GET_CURRENT_CONTEXT(ctx);
 508    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 509
 510    if (stride < 0) {
 511       _mesa_error( ctx, GL_INVALID_VALUE, "glPointSizePointer(stride)" );
 512       return;
 513    }
 514
 515    switch (type) {
 516       case GL_FLOAT:
 517          elementSize = sizeof(GLfloat);
 518          break;
 519 #if FEATURE_fixedpt
 520       case GL_FIXED:
 521          elementSize = sizeof(GLfixed);
 522          break;
 523 #endif
 524       default:
 525          _mesa_error( ctx, GL_INVALID_ENUM, "glPointSizePointer(type)" );
 526          return;
 527    }
 528
 529    update_array(ctx, &ctx->Array.ArrayObj->PointSize, _NEW_ARRAY_POINT_SIZE,
 530                 elementSize, 1, type, GL_RGBA, stride, GL_FALSE, ptr);
 531 }
 532
 533
 534 #if FEATURE_NV_vertex_program
 535 /**
 536  * Set a vertex attribute array.
 537  * Note that these arrays DO alias the conventional GL vertex arrays
 538  * (position, normal, color, fog, texcoord, etc).
 539  * The generic attribute slots at #16 and above are not touched.
 540  */
 541 void GLAPIENTRY
 542 _mesa_VertexAttribPointerNV(GLuint index, GLint size, GLenum type,
 543                             GLsizei stride, const GLvoid *ptr)
 544 {
 545    GLboolean normalized = GL_FALSE;
 546    GLsizei elementSize;
 547    GLenum format;
 548    GET_CURRENT_CONTEXT(ctx);
 549    ASSERT_OUTSIDE_BEGIN_END(ctx);
 550
 551    if (index >= MAX_NV_VERTEX_PROGRAM_INPUTS) {
 552       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(index)");
 553       return;
 554    }
 555
 556    if (size < 1 || size > 4) {
 557       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(size)");
 558       return;
 559    }
 560
 561    if (stride < 0) {
 562       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(stride)");
 563       return;
 564    }
 565
 566    if (type == GL_UNSIGNED_BYTE && size != 4) {
 567       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(size!=4)");
 568       return;
 569    }
 570
 571    if (size == GL_BGRA) {
 572       if (type != GL_UNSIGNED_BYTE) {
 573          _mesa_error(ctx, GL_INVALID_VALUE,
 574                      "glVertexAttribPointerNV(GL_BGRA/type)");
 575          return;
 576       }
 577
 578       format = GL_BGRA;
 579       size = 4;
 580       normalized = GL_TRUE;
 581    }
 582    else {
 583       format = GL_RGBA;
 584    }
 585
 586    /* check for valid 'type' and compute StrideB right away */
 587    switch (type) {
 588       case GL_UNSIGNED_BYTE:
 589          normalized = GL_TRUE;
 590          elementSize = size * sizeof(GLubyte);
 591          break;
 592       case GL_SHORT:
 593          elementSize = size * sizeof(GLshort);
 594          break;
 595       case GL_FLOAT:
 596          elementSize = size * sizeof(GLfloat);
 597          break;
 598       case GL_DOUBLE:
 599          elementSize = size * sizeof(GLdouble);
 600          break;
 601       default:
 602          _mesa_error( ctx, GL_INVALID_ENUM, "glVertexAttribPointerNV(type=%s)",
 603                       _mesa_lookup_enum_by_nr(type));
 604          return;
 605    }
 606
 607    update_array(ctx, &ctx->Array.ArrayObj->VertexAttrib[index],
 608                 _NEW_ARRAY_ATTRIB(index),
 609                 elementSize, size, type, format, stride, normalized, ptr);
 610 }
 611 #endif
 612
 613
 614 #if FEATURE_ARB_vertex_program
 615 /**
 616  * Set a generic vertex attribute array.
 617  * Note that these arrays DO NOT alias the conventional GL vertex arrays
 618  * (position, normal, color, fog, texcoord, etc).
 619  */
 620 void GLAPIENTRY
 621 _mesa_VertexAttribPointerARB(GLuint index, GLint size, GLenum type,
 622                              GLboolean normalized,
 623                              GLsizei stride, const GLvoid *ptr)
 624 {
 625    GLsizei elementSize;
 626    GLenum format;
 627    GET_CURRENT_CONTEXT(ctx);
 628    ASSERT_OUTSIDE_BEGIN_END(ctx);
 629
 630    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 631       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerARB(index)");
 632       return;
 633    }
 634
 635    if (size < 1 || size > 4) {
 636       if (!ctx->Extensions.EXT_vertex_array_bgra || size != GL_BGRA) {
 637          _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerARB(size)");
 638          return;
 639       }
 640    }
 641
 642    if (stride < 0) {
 643       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerARB(stride)");
 644       return;
 645    }
 646
 647    if (size == GL_BGRA) {
 648       if (type != GL_UNSIGNED_BYTE) {
 649          _mesa_error(ctx, GL_INVALID_VALUE,
 650                      "glVertexAttribPointerARB(GL_BGRA/type)");
 651          return;
 652       }
 653       if (normalized != GL_TRUE) {
 654          _mesa_error(ctx, GL_INVALID_VALUE,
 655                      "glVertexAttribPointerARB(GL_BGRA/normalized)");
 656          return;
 657       }
 658
 659       format = GL_BGRA;
 660       size = 4;
 661    }
 662    else {
 663       format = GL_RGBA;
 664    }
 665
 666    /* check for valid 'type' and compute StrideB right away */
 667    /* NOTE: more types are supported here than in the NV extension */
 668    switch (type) {
 669       case GL_BYTE:
 670          elementSize = size * sizeof(GLbyte);
 671          break;
 672       case GL_UNSIGNED_BYTE:
 673          elementSize = size * sizeof(GLubyte);
 674          break;
 675       case GL_SHORT:
 676          elementSize = size * sizeof(GLshort);
 677          break;
 678       case GL_UNSIGNED_SHORT:
 679          elementSize = size * sizeof(GLushort);
 680          break;
 681       case GL_INT:
 682          elementSize = size * sizeof(GLint);
 683          break;
 684       case GL_UNSIGNED_INT:
 685          elementSize = size * sizeof(GLuint);
 686          break;
 687       case GL_FLOAT:
 688          elementSize = size * sizeof(GLfloat);
 689          break;
 690       case GL_DOUBLE:
 691          elementSize = size * sizeof(GLdouble);
 692          break;
 693       case GL_HALF_FLOAT:
 694          elementSize = size * sizeof(GLhalfARB);
 695          break;
 696 #if FEATURE_fixedpt
 697       case GL_FIXED:
 698          elementSize = size * sizeof(GLfixed);
 699          break;
 700 #endif
 701       default:
 702          _mesa_error( ctx, GL_INVALID_ENUM, "glVertexAttribPointerARB(type)" );
 703          return;
 704    }
 705
 706    update_array(ctx, &ctx->Array.ArrayObj->VertexAttrib[index],
 707                 _NEW_ARRAY_ATTRIB(index),
 708                 elementSize, size, type, format, stride, normalized, ptr);
 709 }
 710 #endif
 711
 712
 713 void GLAPIENTRY
 714 _mesa_VertexPointerEXT(GLint size, GLenum type, GLsizei stride,
 715                        GLsizei count, const GLvoid *ptr)
 716 {
 717    (void) count;
 718    _mesa_VertexPointer(size, type, stride, ptr);
 719 }
 720
 721
 722 void GLAPIENTRY
 723 _mesa_NormalPointerEXT(GLenum type, GLsizei stride, GLsizei count,
 724                        const GLvoid *ptr)
 725 {
 726    (void) count;
 727    _mesa_NormalPointer(type, stride, ptr);
 728 }
 729
 730
 731 void GLAPIENTRY
 732 _mesa_ColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count,
 733                       const GLvoid *ptr)
 734 {
 735    (void) count;
 736    _mesa_ColorPointer(size, type, stride, ptr);
 737 }
 738
 739
 740 void GLAPIENTRY
 741 _mesa_IndexPointerEXT(GLenum type, GLsizei stride, GLsizei count,
 742                       const GLvoid *ptr)
 743 {
 744    (void) count;
 745    _mesa_IndexPointer(type, stride, ptr);
 746 }
 747
 748
 749 void GLAPIENTRY
 750 _mesa_TexCoordPointerEXT(GLint size, GLenum type, GLsizei stride,
 751                          GLsizei count, const GLvoid *ptr)
 752 {
 753    (void) count;
 754    _mesa_TexCoordPointer(size, type, stride, ptr);
 755 }
 756
 757
 758 void GLAPIENTRY
 759 _mesa_EdgeFlagPointerEXT(GLsizei stride, GLsizei count, const GLboolean *ptr)
 760 {
 761    (void) count;
 762    _mesa_EdgeFlagPointer(stride, ptr);
 763 }
 764
 765
 766 void GLAPIENTRY
 767 _mesa_InterleavedArrays(GLenum format, GLsizei stride, const GLvoid *pointer)
 768 {
 769    GET_CURRENT_CONTEXT(ctx);
 770    GLboolean tflag, cflag, nflag;  /* enable/disable flags */
 771    GLint tcomps, ccomps, vcomps;   /* components per texcoord, color, vertex */
 772    GLenum ctype = 0;               /* color type */
 773    GLint coffset = 0, noffset = 0, voffset;/* color, normal, vertex offsets */
 774    const GLint toffset = 0;        /* always zero */
 775    GLint defstride;                /* default stride */
 776    GLint c, f;
 777
 778    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 779
 780    f = sizeof(GLfloat);
 781    c = f * ((4 * sizeof(GLubyte) + (f - 1)) / f);
 782
 783    if (stride < 0) {
 784       _mesa_error( ctx, GL_INVALID_VALUE, "glInterleavedArrays(stride)" );
 785       return;
 786    }
 787
 788    switch (format) {
 789       case GL_V2F:
 790          tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 791          tcomps = 0;  ccomps = 0;  vcomps = 2;
 792          voffset = 0;
 793          defstride = 2*f;
 794          break;
 795       case GL_V3F:
 796          tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 797          tcomps = 0;  ccomps = 0;  vcomps = 3;
 798          voffset = 0;
 799          defstride = 3*f;
 800          break;
 801       case GL_C4UB_V2F:
 802          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 803          tcomps = 0;  ccomps = 4;  vcomps = 2;
 804          ctype = GL_UNSIGNED_BYTE;
 805          coffset = 0;
 806          voffset = c;
 807          defstride = c + 2*f;
 808          break;
 809       case GL_C4UB_V3F:
 810          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 811          tcomps = 0;  ccomps = 4;  vcomps = 3;
 812          ctype = GL_UNSIGNED_BYTE;
 813          coffset = 0;
 814          voffset = c;
 815          defstride = c + 3*f;
 816          break;
 817       case GL_C3F_V3F:
 818          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 819          tcomps = 0;  ccomps = 3;  vcomps = 3;
 820          ctype = GL_FLOAT;
 821          coffset = 0;
 822          voffset = 3*f;
 823          defstride = 6*f;
 824          break;
 825       case GL_N3F_V3F:
 826          tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_TRUE;
 827          tcomps = 0;  ccomps = 0;  vcomps = 3;
 828          noffset = 0;
 829          voffset = 3*f;
 830          defstride = 6*f;
 831          break;
 832       case GL_C4F_N3F_V3F:
 833          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_TRUE;
 834          tcomps = 0;  ccomps = 4;  vcomps = 3;
 835          ctype = GL_FLOAT;
 836          coffset = 0;
 837          noffset = 4*f;
 838          voffset = 7*f;
 839          defstride = 10*f;
 840          break;
 841       case GL_T2F_V3F:
 842          tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 843          tcomps = 2;  ccomps = 0;  vcomps = 3;
 844          voffset = 2*f;
 845          defstride = 5*f;
 846          break;
 847       case GL_T4F_V4F:
 848          tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 849          tcomps = 4;  ccomps = 0;  vcomps = 4;
 850          voffset = 4*f;
 851          defstride = 8*f;
 852          break;
 853       case GL_T2F_C4UB_V3F:
 854          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 855          tcomps = 2;  ccomps = 4;  vcomps = 3;
 856          ctype = GL_UNSIGNED_BYTE;
 857          coffset = 2*f;
 858          voffset = c+2*f;
 859          defstride = c+5*f;
 860          break;
 861       case GL_T2F_C3F_V3F:
 862          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 863          tcomps = 2;  ccomps = 3;  vcomps = 3;
 864          ctype = GL_FLOAT;
 865          coffset = 2*f;
 866          voffset = 5*f;
 867          defstride = 8*f;
 868          break;
 869       case GL_T2F_N3F_V3F:
 870          tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_TRUE;
 871          tcomps = 2;  ccomps = 0;  vcomps = 3;
 872          noffset = 2*f;
 873          voffset = 5*f;
 874          defstride = 8*f;
 875          break;
 876       case GL_T2F_C4F_N3F_V3F:
 877          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_TRUE;
 878          tcomps = 2;  ccomps = 4;  vcomps = 3;
 879          ctype = GL_FLOAT;
 880          coffset = 2*f;
 881          noffset = 6*f;
 882          voffset = 9*f;
 883          defstride = 12*f;
 884          break;
 885       case GL_T4F_C4F_N3F_V4F:
 886          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_TRUE;
 887          tcomps = 4;  ccomps = 4;  vcomps = 4;
 888          ctype = GL_FLOAT;
 889          coffset = 4*f;
 890          noffset = 8*f;
 891          voffset = 11*f;
 892          defstride = 15*f;
 893          break;
 894       default:
 895          _mesa_error( ctx, GL_INVALID_ENUM, "glInterleavedArrays(format)" );
 896          return;
 897    }
 898
 899    if (stride==0) {
 900       stride = defstride;
 901    }
 902
 903    _mesa_DisableClientState( GL_EDGE_FLAG_ARRAY );
 904    _mesa_DisableClientState( GL_INDEX_ARRAY );
 905    /* XXX also disable secondary color and generic arrays? */
 906
 907    /* Texcoords */
 908    if (tflag) {
 909       _mesa_EnableClientState( GL_TEXTURE_COORD_ARRAY );
 910       _mesa_TexCoordPointer( tcomps, GL_FLOAT, stride,
 911                              (GLubyte *) pointer + toffset );
 912    }
 913    else {
 914       _mesa_DisableClientState( GL_TEXTURE_COORD_ARRAY );
 915    }
 916
 917    /* Color */
 918    if (cflag) {
 919       _mesa_EnableClientState( GL_COLOR_ARRAY );
 920       _mesa_ColorPointer( ccomps, ctype, stride,
 921                           (GLubyte *) pointer + coffset );
 922    }
 923    else {
 924       _mesa_DisableClientState( GL_COLOR_ARRAY );
 925    }
 926
 927
 928    /* Normals */
 929    if (nflag) {
 930       _mesa_EnableClientState( GL_NORMAL_ARRAY );
 931       _mesa_NormalPointer( GL_FLOAT, stride, (GLubyte *) pointer + noffset );
 932    }
 933    else {
 934       _mesa_DisableClientState( GL_NORMAL_ARRAY );
 935    }
 936
 937    /* Vertices */
 938    _mesa_EnableClientState( GL_VERTEX_ARRAY );
 939    _mesa_VertexPointer( vcomps, GL_FLOAT, stride,
 940                         (GLubyte *) pointer + voffset );
 941 }
 942
 943
 944 void GLAPIENTRY
 945 _mesa_LockArraysEXT(GLint first, GLsizei count)
 946 {
 947    GET_CURRENT_CONTEXT(ctx);
 948    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 949
 950    if (MESA_VERBOSE & VERBOSE_API)
 951       _mesa_debug(ctx, "glLockArrays %d %d\n", first, count);
 952
 953    if (first < 0) {
 954       _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(first)" );
 955       return;
 956    }
 957    if (count <= 0) {
 958       _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(count)" );
 959       return;
 960    }
 961    if (ctx->Array.LockCount != 0) {
 962       _mesa_error( ctx, GL_INVALID_OPERATION, "glLockArraysEXT(reentry)" );
 963       return;
 964    }
 965
 966    ctx->Array.LockFirst = first;
 967    ctx->Array.LockCount = count;
 968
 969    ctx->NewState |= _NEW_ARRAY;
 970    ctx->Array.NewState |= _NEW_ARRAY_ALL;
 971 }
 972
 973
 974 void GLAPIENTRY
 975 _mesa_UnlockArraysEXT( void )
 976 {
 977    GET_CURRENT_CONTEXT(ctx);
 978    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 979
 980    if (MESA_VERBOSE & VERBOSE_API)
 981       _mesa_debug(ctx, "glUnlockArrays\n");
 982
 983    if (ctx->Array.LockCount == 0) {
 984       _mesa_error( ctx, GL_INVALID_OPERATION, "glUnlockArraysEXT(reexit)" );
 985       return;
 986    }
 987
 988    ctx->Array.LockFirst = 0;
 989    ctx->Array.LockCount = 0;
 990    ctx->NewState |= _NEW_ARRAY;
 991    ctx->Array.NewState |= _NEW_ARRAY_ALL;
 992 }
 993
 994
 995 /* GL_EXT_multi_draw_arrays */
 996 /* Somebody forgot to spec the first and count parameters as const! <sigh> */
 997 void GLAPIENTRY
 998 _mesa_MultiDrawArraysEXT( GLenum mode, GLint *first,
 999                           GLsizei *count, GLsizei primcount )
1000 {
1001    GET_CURRENT_CONTEXT(ctx);
1002    GLint i;
1003
1004    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1005
1006    for (i = 0; i < primcount; i++) {
1007       if (count[i] > 0) {
1008          CALL_DrawArrays(ctx->Exec, (mode, first[i], count[i]));
1009       }
1010    }
1011 }
1012
1013
1014 /* GL_IBM_multimode_draw_arrays */
1015 void GLAPIENTRY
1016 _mesa_MultiModeDrawArraysIBM( const GLenum * mode, const GLint * first,
1017                               const GLsizei * count,
1018                               GLsizei primcount, GLint modestride )
1019 {
1020    GET_CURRENT_CONTEXT(ctx);
1021    GLint i;
1022
1023    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1024
1025    for ( i = 0 ; i < primcount ; i++ ) {
1026       if ( count[i] > 0 ) {
1027          GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride));
1028          CALL_DrawArrays(ctx->Exec, ( m, first[i], count[i] ));
1029       }
1030    }
1031 }
1032
1033
1034 /* GL_IBM_multimode_draw_arrays */
1035 void GLAPIENTRY
1036 _mesa_MultiModeDrawElementsIBM( const GLenum * mode, const GLsizei * count,
1037                                 GLenum type, const GLvoid * const * indices,
1038                                 GLsizei primcount, GLint modestride )
1039 {
1040    GET_CURRENT_CONTEXT(ctx);
1041    GLint i;
1042
1043    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1044
1045    /* XXX not sure about ARB_vertex_buffer_object handling here */
1046
1047    for ( i = 0 ; i < primcount ; i++ ) {
1048       if ( count[i] > 0 ) {
1049          GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride));
1050          CALL_DrawElements(ctx->Exec, ( m, count[i], type, indices[i] ));
1051       }
1052    }
1053 }
1054
1055
1056 /**
1057  * Copy one client vertex array to another.
1058  */
1059 void
1060 _mesa_copy_client_array(GLcontext *ctx,
1061                         struct gl_client_array *dst,
1062                         struct gl_client_array *src)
1063 {
1064    dst->Size = src->Size;
1065    dst->Type = src->Type;
1066    dst->Format = src->Format;
1067    dst->Stride = src->Stride;
1068    dst->StrideB = src->StrideB;
1069    dst->Ptr = src->Ptr;
1070    dst->Enabled = src->Enabled;
1071    dst->Normalized = src->Normalized;
1072    dst->_ElementSize = src->_ElementSize;
1073    _mesa_reference_buffer_object(ctx, &dst->BufferObj, src->BufferObj);
1074    dst->_MaxElement = src->_MaxElement;
1075 }
1076
1077
1078
1079 /**
1080  * Print vertex array's fields.
1081  */
1082 static void
1083 print_array(const char *name, GLint index, const struct gl_client_array *array)
1084 {
1085    if (index >= 0)
1086       printf("  %s[%d]: ", name, index);
1087    else
1088       printf("  %s: ", name);
1089    printf("Ptr=%p, Type=0x%x, Size=%d, ElemSize=%u, Stride=%d, Buffer=%u(Size %u), MaxElem=%u\n",
1090           array->Ptr, array->Type, array->Size,
1091           array->_ElementSize, array->StrideB,
1092           array->BufferObj->Name, array->BufferObj->Size,
1093           array->_MaxElement);
1094 }
1095
1096
1097 /**
1098  * Print current vertex object/array info.  For debug.
1099  */
1100 void
1101 _mesa_print_arrays(GLcontext *ctx)
1102 {
1103    struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
1104    GLuint i;
1105
1106    _mesa_update_array_object_max_element(ctx, arrayObj);
1107
1108    printf("Array Object %u\n", arrayObj->Name);
1109    if (arrayObj->Vertex.Enabled)
1110       print_array("Vertex", -1, &arrayObj->Vertex);
1111    if (arrayObj->Normal.Enabled)
1112       print_array("Normal", -1, &arrayObj->Normal);
1113    if (arrayObj->Color.Enabled)
1114       print_array("Color", -1, &arrayObj->Color);
1115    for (i = 0; i < Elements(arrayObj->TexCoord); i++)
1116       if (arrayObj->TexCoord[i].Enabled)
1117          print_array("TexCoord", i, &arrayObj->TexCoord[i]);
1118    for (i = 0; i < Elements(arrayObj->VertexAttrib); i++)
1119       if (arrayObj->VertexAttrib[i].Enabled)
1120          print_array("Attrib", i, &arrayObj->VertexAttrib[i]);
1121    printf("  _MaxElement = %u\n", arrayObj->_MaxElement);
1122 }
1123
1124
1125 /**
1126  * Initialize vertex array state for given context.
1127  */
1128 void
1129 _mesa_init_varray(GLcontext *ctx)
1130 {
1131    ctx->Array.DefaultArrayObj = _mesa_new_array_object(ctx, 0);
1132    _mesa_reference_array_object(ctx, &ctx->Array.ArrayObj,
1133                                 ctx->Array.DefaultArrayObj);
1134    ctx->Array.ActiveTexture = 0;   /* GL_ARB_multitexture */
1135
1136    ctx->Array.Objects = _mesa_NewHashTable();
1137 }
1138
1139
1140 /**
1141  * Callback for deleting an array object.  Called by _mesa_HashDeleteAll().
1142  */
1143 static void
1144 delete_arrayobj_cb(GLuint id, void *data, void *userData)
1145 {
1146    struct gl_array_object *arrayObj = (struct gl_array_object *) data;
1147    GLcontext *ctx = (GLcontext *) userData;
1148    _mesa_delete_array_object(ctx, arrayObj);
1149 }
1150
1151
1152 /**
1153  * Free vertex array state for given context.
1154  */
1155 void
1156 _mesa_free_varray_data(GLcontext *ctx)
1157 {
1158    _mesa_HashDeleteAll(ctx->Array.Objects, delete_arrayobj_cb, ctx);
1159    _mesa_DeleteHashTable(ctx->Array.Objects);
1160 }