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 "glapi/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    update_array(ctx, &ctx->Array.ArrayObj->TexCoord[unit],
 479                 _NEW_ARRAY_TEXCOORD(unit),
 480                 elementSize, size, type, GL_RGBA, stride, GL_FALSE, ptr);
 481 }
 482
 483
 484 void GLAPIENTRY
 485 _mesa_EdgeFlagPointer(GLsizei stride, const GLvoid *ptr)
 486 {
 487    GET_CURRENT_CONTEXT(ctx);
 488    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 489
 490    if (stride < 0) {
 491       _mesa_error( ctx, GL_INVALID_VALUE, "glEdgeFlagPointer(stride)" );
 492       return;
 493    }
 494
 495    update_array(ctx, &ctx->Array.ArrayObj->EdgeFlag, _NEW_ARRAY_EDGEFLAG,
 496                 sizeof(GLboolean), 1, GL_UNSIGNED_BYTE, GL_RGBA,
 497                 stride, GL_FALSE, ptr);
 498 }
 499
 500
 501 void GLAPIENTRY
 502 _mesa_PointSizePointer(GLenum type, GLsizei stride, const GLvoid *ptr)
 503 {
 504    GLsizei elementSize;
 505    GET_CURRENT_CONTEXT(ctx);
 506    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 507
 508    if (stride < 0) {
 509       _mesa_error( ctx, GL_INVALID_VALUE, "glPointSizePointer(stride)" );
 510       return;
 511    }
 512
 513    switch (type) {
 514       case GL_FLOAT:
 515          elementSize = sizeof(GLfloat);
 516          break;
 517 #if FEATURE_fixedpt
 518       case GL_FIXED:
 519          elementSize = sizeof(GLfixed);
 520          break;
 521 #endif
 522       default:
 523          _mesa_error( ctx, GL_INVALID_ENUM, "glPointSizePointer(type)" );
 524          return;
 525    }
 526
 527    update_array(ctx, &ctx->Array.ArrayObj->PointSize, _NEW_ARRAY_POINT_SIZE,
 528                 elementSize, 1, type, GL_RGBA, stride, GL_FALSE, ptr);
 529 }
 530
 531
 532 #if FEATURE_NV_vertex_program
 533 /**
 534  * Set a vertex attribute array.
 535  * Note that these arrays DO alias the conventional GL vertex arrays
 536  * (position, normal, color, fog, texcoord, etc).
 537  * The generic attribute slots at #16 and above are not touched.
 538  */
 539 void GLAPIENTRY
 540 _mesa_VertexAttribPointerNV(GLuint index, GLint size, GLenum type,
 541                             GLsizei stride, const GLvoid *ptr)
 542 {
 543    GLboolean normalized = GL_FALSE;
 544    GLsizei elementSize;
 545    GLenum format;
 546    GET_CURRENT_CONTEXT(ctx);
 547    ASSERT_OUTSIDE_BEGIN_END(ctx);
 548
 549    if (index >= MAX_NV_VERTEX_PROGRAM_INPUTS) {
 550       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(index)");
 551       return;
 552    }
 553
 554    if (size < 1 || size > 4) {
 555       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(size)");
 556       return;
 557    }
 558
 559    if (stride < 0) {
 560       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(stride)");
 561       return;
 562    }
 563
 564    if (type == GL_UNSIGNED_BYTE && size != 4) {
 565       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(size!=4)");
 566       return;
 567    }
 568
 569    if (size == GL_BGRA) {
 570       if (type != GL_UNSIGNED_BYTE) {
 571          _mesa_error(ctx, GL_INVALID_VALUE,
 572                      "glVertexAttribPointerNV(GL_BGRA/type)");
 573          return;
 574       }
 575
 576       format = GL_BGRA;
 577       size = 4;
 578       normalized = GL_TRUE;
 579    }
 580    else {
 581       format = GL_RGBA;
 582    }
 583
 584    /* check for valid 'type' and compute StrideB right away */
 585    switch (type) {
 586       case GL_UNSIGNED_BYTE:
 587          normalized = GL_TRUE;
 588          elementSize = size * sizeof(GLubyte);
 589          break;
 590       case GL_SHORT:
 591          elementSize = size * sizeof(GLshort);
 592          break;
 593       case GL_FLOAT:
 594          elementSize = size * sizeof(GLfloat);
 595          break;
 596       case GL_DOUBLE:
 597          elementSize = size * sizeof(GLdouble);
 598          break;
 599       default:
 600          _mesa_error( ctx, GL_INVALID_ENUM, "glVertexAttribPointerNV(type=%s)",
 601                       _mesa_lookup_enum_by_nr(type));
 602          return;
 603    }
 604
 605    update_array(ctx, &ctx->Array.ArrayObj->VertexAttrib[index],
 606                 _NEW_ARRAY_ATTRIB(index),
 607                 elementSize, size, type, format, stride, normalized, ptr);
 608 }
 609 #endif
 610
 611
 612 #if FEATURE_ARB_vertex_program
 613 /**
 614  * Set a generic vertex attribute array.
 615  * Note that these arrays DO NOT alias the conventional GL vertex arrays
 616  * (position, normal, color, fog, texcoord, etc).
 617  */
 618 void GLAPIENTRY
 619 _mesa_VertexAttribPointerARB(GLuint index, GLint size, GLenum type,
 620                              GLboolean normalized,
 621                              GLsizei stride, const GLvoid *ptr)
 622 {
 623    GLsizei elementSize;
 624    GLenum format;
 625    GET_CURRENT_CONTEXT(ctx);
 626    ASSERT_OUTSIDE_BEGIN_END(ctx);
 627
 628    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 629       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerARB(index)");
 630       return;
 631    }
 632
 633    if (size < 1 || size > 4) {
 634       if (!ctx->Extensions.EXT_vertex_array_bgra || size != GL_BGRA) {
 635          _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerARB(size)");
 636          return;
 637       }
 638    }
 639
 640    if (stride < 0) {
 641       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerARB(stride)");
 642       return;
 643    }
 644
 645    if (size == GL_BGRA) {
 646       if (type != GL_UNSIGNED_BYTE) {
 647          _mesa_error(ctx, GL_INVALID_VALUE,
 648                      "glVertexAttribPointerARB(GL_BGRA/type)");
 649          return;
 650       }
 651       if (normalized != GL_TRUE) {
 652          _mesa_error(ctx, GL_INVALID_VALUE,
 653                      "glVertexAttribPointerARB(GL_BGRA/normalized)");
 654          return;
 655       }
 656
 657       format = GL_BGRA;
 658       size = 4;
 659    }
 660    else {
 661       format = GL_RGBA;
 662    }
 663
 664    /* check for valid 'type' and compute StrideB right away */
 665    /* NOTE: more types are supported here than in the NV extension */
 666    switch (type) {
 667       case GL_BYTE:
 668          elementSize = size * sizeof(GLbyte);
 669          break;
 670       case GL_UNSIGNED_BYTE:
 671          elementSize = size * sizeof(GLubyte);
 672          break;
 673       case GL_SHORT:
 674          elementSize = size * sizeof(GLshort);
 675          break;
 676       case GL_UNSIGNED_SHORT:
 677          elementSize = size * sizeof(GLushort);
 678          break;
 679       case GL_INT:
 680          elementSize = size * sizeof(GLint);
 681          break;
 682       case GL_UNSIGNED_INT:
 683          elementSize = size * sizeof(GLuint);
 684          break;
 685       case GL_FLOAT:
 686          elementSize = size * sizeof(GLfloat);
 687          break;
 688       case GL_DOUBLE:
 689          elementSize = size * sizeof(GLdouble);
 690          break;
 691       case GL_HALF_FLOAT:
 692          elementSize = size * sizeof(GLhalfARB);
 693          break;
 694 #if FEATURE_fixedpt
 695       case GL_FIXED:
 696          elementSize = size * sizeof(GLfixed);
 697          break;
 698 #endif
 699       default:
 700          _mesa_error( ctx, GL_INVALID_ENUM, "glVertexAttribPointerARB(type)" );
 701          return;
 702    }
 703
 704    update_array(ctx, &ctx->Array.ArrayObj->VertexAttrib[index],
 705                 _NEW_ARRAY_ATTRIB(index),
 706                 elementSize, size, type, format, stride, normalized, ptr);
 707 }
 708 #endif
 709
 710
 711 void GLAPIENTRY
 712 _mesa_VertexPointerEXT(GLint size, GLenum type, GLsizei stride,
 713                        GLsizei count, const GLvoid *ptr)
 714 {
 715    (void) count;
 716    _mesa_VertexPointer(size, type, stride, ptr);
 717 }
 718
 719
 720 void GLAPIENTRY
 721 _mesa_NormalPointerEXT(GLenum type, GLsizei stride, GLsizei count,
 722                        const GLvoid *ptr)
 723 {
 724    (void) count;
 725    _mesa_NormalPointer(type, stride, ptr);
 726 }
 727
 728
 729 void GLAPIENTRY
 730 _mesa_ColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count,
 731                       const GLvoid *ptr)
 732 {
 733    (void) count;
 734    _mesa_ColorPointer(size, type, stride, ptr);
 735 }
 736
 737
 738 void GLAPIENTRY
 739 _mesa_IndexPointerEXT(GLenum type, GLsizei stride, GLsizei count,
 740                       const GLvoid *ptr)
 741 {
 742    (void) count;
 743    _mesa_IndexPointer(type, stride, ptr);
 744 }
 745
 746
 747 void GLAPIENTRY
 748 _mesa_TexCoordPointerEXT(GLint size, GLenum type, GLsizei stride,
 749                          GLsizei count, const GLvoid *ptr)
 750 {
 751    (void) count;
 752    _mesa_TexCoordPointer(size, type, stride, ptr);
 753 }
 754
 755
 756 void GLAPIENTRY
 757 _mesa_EdgeFlagPointerEXT(GLsizei stride, GLsizei count, const GLboolean *ptr)
 758 {
 759    (void) count;
 760    _mesa_EdgeFlagPointer(stride, ptr);
 761 }
 762
 763
 764 void GLAPIENTRY
 765 _mesa_InterleavedArrays(GLenum format, GLsizei stride, const GLvoid *pointer)
 766 {
 767    GET_CURRENT_CONTEXT(ctx);
 768    GLboolean tflag, cflag, nflag;  /* enable/disable flags */
 769    GLint tcomps, ccomps, vcomps;   /* components per texcoord, color, vertex */
 770    GLenum ctype = 0;               /* color type */
 771    GLint coffset = 0, noffset = 0, voffset;/* color, normal, vertex offsets */
 772    const GLint toffset = 0;        /* always zero */
 773    GLint defstride;                /* default stride */
 774    GLint c, f;
 775
 776    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 777
 778    f = sizeof(GLfloat);
 779    c = f * ((4 * sizeof(GLubyte) + (f - 1)) / f);
 780
 781    if (stride < 0) {
 782       _mesa_error( ctx, GL_INVALID_VALUE, "glInterleavedArrays(stride)" );
 783       return;
 784    }
 785
 786    switch (format) {
 787       case GL_V2F:
 788          tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 789          tcomps = 0;  ccomps = 0;  vcomps = 2;
 790          voffset = 0;
 791          defstride = 2*f;
 792          break;
 793       case GL_V3F:
 794          tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 795          tcomps = 0;  ccomps = 0;  vcomps = 3;
 796          voffset = 0;
 797          defstride = 3*f;
 798          break;
 799       case GL_C4UB_V2F:
 800          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 801          tcomps = 0;  ccomps = 4;  vcomps = 2;
 802          ctype = GL_UNSIGNED_BYTE;
 803          coffset = 0;
 804          voffset = c;
 805          defstride = c + 2*f;
 806          break;
 807       case GL_C4UB_V3F:
 808          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 809          tcomps = 0;  ccomps = 4;  vcomps = 3;
 810          ctype = GL_UNSIGNED_BYTE;
 811          coffset = 0;
 812          voffset = c;
 813          defstride = c + 3*f;
 814          break;
 815       case GL_C3F_V3F:
 816          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 817          tcomps = 0;  ccomps = 3;  vcomps = 3;
 818          ctype = GL_FLOAT;
 819          coffset = 0;
 820          voffset = 3*f;
 821          defstride = 6*f;
 822          break;
 823       case GL_N3F_V3F:
 824          tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_TRUE;
 825          tcomps = 0;  ccomps = 0;  vcomps = 3;
 826          noffset = 0;
 827          voffset = 3*f;
 828          defstride = 6*f;
 829          break;
 830       case GL_C4F_N3F_V3F:
 831          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_TRUE;
 832          tcomps = 0;  ccomps = 4;  vcomps = 3;
 833          ctype = GL_FLOAT;
 834          coffset = 0;
 835          noffset = 4*f;
 836          voffset = 7*f;
 837          defstride = 10*f;
 838          break;
 839       case GL_T2F_V3F:
 840          tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 841          tcomps = 2;  ccomps = 0;  vcomps = 3;
 842          voffset = 2*f;
 843          defstride = 5*f;
 844          break;
 845       case GL_T4F_V4F:
 846          tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 847          tcomps = 4;  ccomps = 0;  vcomps = 4;
 848          voffset = 4*f;
 849          defstride = 8*f;
 850          break;
 851       case GL_T2F_C4UB_V3F:
 852          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 853          tcomps = 2;  ccomps = 4;  vcomps = 3;
 854          ctype = GL_UNSIGNED_BYTE;
 855          coffset = 2*f;
 856          voffset = c+2*f;
 857          defstride = c+5*f;
 858          break;
 859       case GL_T2F_C3F_V3F:
 860          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 861          tcomps = 2;  ccomps = 3;  vcomps = 3;
 862          ctype = GL_FLOAT;
 863          coffset = 2*f;
 864          voffset = 5*f;
 865          defstride = 8*f;
 866          break;
 867       case GL_T2F_N3F_V3F:
 868          tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_TRUE;
 869          tcomps = 2;  ccomps = 0;  vcomps = 3;
 870          noffset = 2*f;
 871          voffset = 5*f;
 872          defstride = 8*f;
 873          break;
 874       case GL_T2F_C4F_N3F_V3F:
 875          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_TRUE;
 876          tcomps = 2;  ccomps = 4;  vcomps = 3;
 877          ctype = GL_FLOAT;
 878          coffset = 2*f;
 879          noffset = 6*f;
 880          voffset = 9*f;
 881          defstride = 12*f;
 882          break;
 883       case GL_T4F_C4F_N3F_V4F:
 884          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_TRUE;
 885          tcomps = 4;  ccomps = 4;  vcomps = 4;
 886          ctype = GL_FLOAT;
 887          coffset = 4*f;
 888          noffset = 8*f;
 889          voffset = 11*f;
 890          defstride = 15*f;
 891          break;
 892       default:
 893          _mesa_error( ctx, GL_INVALID_ENUM, "glInterleavedArrays(format)" );
 894          return;
 895    }
 896
 897    if (stride==0) {
 898       stride = defstride;
 899    }
 900
 901    _mesa_DisableClientState( GL_EDGE_FLAG_ARRAY );
 902    _mesa_DisableClientState( GL_INDEX_ARRAY );
 903    /* XXX also disable secondary color and generic arrays? */
 904
 905    /* Texcoords */
 906    if (tflag) {
 907       _mesa_EnableClientState( GL_TEXTURE_COORD_ARRAY );
 908       _mesa_TexCoordPointer( tcomps, GL_FLOAT, stride,
 909                              (GLubyte *) pointer + toffset );
 910    }
 911    else {
 912       _mesa_DisableClientState( GL_TEXTURE_COORD_ARRAY );
 913    }
 914
 915    /* Color */
 916    if (cflag) {
 917       _mesa_EnableClientState( GL_COLOR_ARRAY );
 918       _mesa_ColorPointer( ccomps, ctype, stride,
 919                           (GLubyte *) pointer + coffset );
 920    }
 921    else {
 922       _mesa_DisableClientState( GL_COLOR_ARRAY );
 923    }
 924
 925
 926    /* Normals */
 927    if (nflag) {
 928       _mesa_EnableClientState( GL_NORMAL_ARRAY );
 929       _mesa_NormalPointer( GL_FLOAT, stride, (GLubyte *) pointer + noffset );
 930    }
 931    else {
 932       _mesa_DisableClientState( GL_NORMAL_ARRAY );
 933    }
 934
 935    /* Vertices */
 936    _mesa_EnableClientState( GL_VERTEX_ARRAY );
 937    _mesa_VertexPointer( vcomps, GL_FLOAT, stride,
 938                         (GLubyte *) pointer + voffset );
 939 }
 940
 941
 942 void GLAPIENTRY
 943 _mesa_LockArraysEXT(GLint first, GLsizei count)
 944 {
 945    GET_CURRENT_CONTEXT(ctx);
 946    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 947
 948    if (MESA_VERBOSE & VERBOSE_API)
 949       _mesa_debug(ctx, "glLockArrays %d %d\n", first, count);
 950
 951    if (first < 0) {
 952       _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(first)" );
 953       return;
 954    }
 955    if (count <= 0) {
 956       _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(count)" );
 957       return;
 958    }
 959    if (ctx->Array.LockCount != 0) {
 960       _mesa_error( ctx, GL_INVALID_OPERATION, "glLockArraysEXT(reentry)" );
 961       return;
 962    }
 963
 964    ctx->Array.LockFirst = first;
 965    ctx->Array.LockCount = count;
 966
 967    ctx->NewState |= _NEW_ARRAY;
 968    ctx->Array.NewState |= _NEW_ARRAY_ALL;
 969 }
 970
 971
 972 void GLAPIENTRY
 973 _mesa_UnlockArraysEXT( void )
 974 {
 975    GET_CURRENT_CONTEXT(ctx);
 976    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 977
 978    if (MESA_VERBOSE & VERBOSE_API)
 979       _mesa_debug(ctx, "glUnlockArrays\n");
 980
 981    if (ctx->Array.LockCount == 0) {
 982       _mesa_error( ctx, GL_INVALID_OPERATION, "glUnlockArraysEXT(reexit)" );
 983       return;
 984    }
 985
 986    ctx->Array.LockFirst = 0;
 987    ctx->Array.LockCount = 0;
 988    ctx->NewState |= _NEW_ARRAY;
 989    ctx->Array.NewState |= _NEW_ARRAY_ALL;
 990 }
 991
 992
 993 /* GL_EXT_multi_draw_arrays */
 994 /* Somebody forgot to spec the first and count parameters as const! <sigh> */
 995 void GLAPIENTRY
 996 _mesa_MultiDrawArraysEXT( GLenum mode, GLint *first,
 997                           GLsizei *count, GLsizei primcount )
 998 {
 999    GET_CURRENT_CONTEXT(ctx);
1000    GLint i;
1001
1002    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1003
1004    for (i = 0; i < primcount; i++) {
1005       if (count[i] > 0) {
1006          CALL_DrawArrays(ctx->Exec, (mode, first[i], count[i]));
1007       }
1008    }
1009 }
1010
1011
1012 /* GL_IBM_multimode_draw_arrays */
1013 void GLAPIENTRY
1014 _mesa_MultiModeDrawArraysIBM( const GLenum * mode, const GLint * first,
1015                               const GLsizei * count,
1016                               GLsizei primcount, GLint modestride )
1017 {
1018    GET_CURRENT_CONTEXT(ctx);
1019    GLint i;
1020
1021    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1022
1023    for ( i = 0 ; i < primcount ; i++ ) {
1024       if ( count[i] > 0 ) {
1025          GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride));
1026          CALL_DrawArrays(ctx->Exec, ( m, first[i], count[i] ));
1027       }
1028    }
1029 }
1030
1031
1032 /* GL_IBM_multimode_draw_arrays */
1033 void GLAPIENTRY
1034 _mesa_MultiModeDrawElementsIBM( const GLenum * mode, const GLsizei * count,
1035                                 GLenum type, const GLvoid * const * indices,
1036                                 GLsizei primcount, GLint modestride )
1037 {
1038    GET_CURRENT_CONTEXT(ctx);
1039    GLint i;
1040
1041    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1042
1043    /* XXX not sure about ARB_vertex_buffer_object handling here */
1044
1045    for ( i = 0 ; i < primcount ; i++ ) {
1046       if ( count[i] > 0 ) {
1047          GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride));
1048          CALL_DrawElements(ctx->Exec, ( m, count[i], type, indices[i] ));
1049       }
1050    }
1051 }
1052
1053
1054 /**
1055  * Copy one client vertex array to another.
1056  */
1057 void
1058 _mesa_copy_client_array(GLcontext *ctx,
1059                         struct gl_client_array *dst,
1060                         struct gl_client_array *src)
1061 {
1062    dst->Size = src->Size;
1063    dst->Type = src->Type;
1064    dst->Format = src->Format;
1065    dst->Stride = src->Stride;
1066    dst->StrideB = src->StrideB;
1067    dst->Ptr = src->Ptr;
1068    dst->Enabled = src->Enabled;
1069    dst->Normalized = src->Normalized;
1070    dst->_ElementSize = src->_ElementSize;
1071    _mesa_reference_buffer_object(ctx, &dst->BufferObj, src->BufferObj);
1072    dst->_MaxElement = src->_MaxElement;
1073 }
1074
1075
1076
1077 /**
1078  * Print vertex array's fields.
1079  */
1080 static void
1081 print_array(const char *name, GLint index, const struct gl_client_array *array)
1082 {
1083    if (index >= 0)
1084       _mesa_printf("  %s[%d]: ", name, index);
1085    else
1086       _mesa_printf("  %s: ", name);
1087    _mesa_printf("Ptr=%p, Type=0x%x, Size=%d, ElemSize=%u, Stride=%d, Buffer=%u(Size %u), MaxElem=%u\n",
1088                 array->Ptr, array->Type, array->Size,
1089                 array->_ElementSize, array->StrideB,
1090                 array->BufferObj->Name, array->BufferObj->Size,
1091                 array->_MaxElement);
1092 }
1093
1094
1095 /**
1096  * Print current vertex object/array info.  For debug.
1097  */
1098 void
1099 _mesa_print_arrays(GLcontext *ctx)
1100 {
1101    struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
1102    GLuint i;
1103
1104    _mesa_update_array_object_max_element(ctx, arrayObj);
1105
1106    _mesa_printf("Array Object %u\n", arrayObj->Name);
1107    if (arrayObj->Vertex.Enabled)
1108       print_array("Vertex", -1, &arrayObj->Vertex);
1109    if (arrayObj->Normal.Enabled)
1110       print_array("Normal", -1, &arrayObj->Normal);
1111    if (arrayObj->Color.Enabled)
1112       print_array("Color", -1, &arrayObj->Color);
1113    for (i = 0; i < Elements(arrayObj->TexCoord); i++)
1114       if (arrayObj->TexCoord[i].Enabled)
1115          print_array("TexCoord", i, &arrayObj->TexCoord[i]);
1116    for (i = 0; i < Elements(arrayObj->VertexAttrib); i++)
1117       if (arrayObj->VertexAttrib[i].Enabled)
1118          print_array("Attrib", i, &arrayObj->VertexAttrib[i]);
1119    _mesa_printf("  _MaxElement = %u\n", arrayObj->_MaxElement);
1120 }
1121
1122
1123 /**
1124  * Initialize vertex array state for given context.
1125  */
1126 void
1127 _mesa_init_varray(GLcontext *ctx)
1128 {
1129    ctx->Array.DefaultArrayObj = _mesa_new_array_object(ctx, 0);
1130    _mesa_reference_array_object(ctx, &ctx->Array.ArrayObj,
1131                                 ctx->Array.DefaultArrayObj);
1132    ctx->Array.ActiveTexture = 0;   /* GL_ARB_multitexture */
1133
1134    ctx->Array.Objects = _mesa_NewHashTable();
1135 }
1136
1137
1138 /**
1139  * Callback for deleting an array object.  Called by _mesa_HashDeleteAll().
1140  */
1141 static void
1142 delete_arrayobj_cb(GLuint id, void *data, void *userData)
1143 {
1144    struct gl_array_object *arrayObj = (struct gl_array_object *) data;
1145    GLcontext *ctx = (GLcontext *) userData;
1146    _mesa_delete_array_object(ctx, arrayObj);
1147 }
1148
1149
1150 /**
1151  * Free vertex array state for given context.
1152  */
1153 void
1154 _mesa_free_varray_data(GLcontext *ctx)
1155 {
1156    _mesa_HashDeleteAll(ctx->Array.Objects, delete_arrayobj_cb, ctx);
1157    _mesa_DeleteHashTable(ctx->Array.Objects);
1158 }