src/mesa/tnl/t_imm_exec.c

   1 /* $Id: t_imm_exec.c,v 1.32 2001/12/15 02:13:32 brianp Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.5
   6  *
   7  * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  * Authors:
  27  *    Keith Whitwell <keithw@valinux.com>
  28  */
  29
  30
  31 #include "glheader.h"
  32 #include "colormac.h"
  33 #include "context.h"
  34 #include "enums.h"
  35 #include "dlist.h"
  36 #include "macros.h"
  37 #include "mem.h"
  38 #include "mmath.h"
  39 #include "light.h"
  40 #include "state.h"
  41 #include "mtypes.h"
  42
  43 #include "math/m_matrix.h"
  44 #include "math/m_xform.h"
  45
  46 #include "t_context.h"
  47 #include "t_array_import.h"
  48 #include "t_imm_alloc.h"
  49 #include "t_imm_api.h"
  50 #include "t_imm_debug.h"
  51 #include "t_imm_dlist.h"
  52 #include "t_imm_eval.h"
  53 #include "t_imm_elt.h"
  54 #include "t_imm_exec.h"
  55 #include "t_imm_fixup.h"
  56 #include "t_pipeline.h"
  57
  58
  59
  60 static void reset_input( GLcontext *ctx,
  61                          GLuint start,
  62                          GLuint beginstate,
  63                          GLuint savedbeginstate )
  64 {
  65    struct immediate *IM = TNL_CURRENT_IM(ctx);
  66
  67    /* Clear the dirty part of the flag array.
  68     */
  69    if (start < IM->Count+2)
  70       MEMSET(IM->Flag + start, 0, sizeof(GLuint) * (IM->Count+2-start));
  71
  72    IM->Start = start;
  73    IM->Count = start;
  74    IM->LastMaterial = start;
  75    IM->BeginState = beginstate;
  76    IM->SavedBeginState = savedbeginstate;
  77    IM->TexSize = 0;
  78    IM->MaterialOrMask = 0;
  79
  80    if (IM->MaterialMask)
  81       IM->MaterialMask[IM->Start] = 0;
  82
  83    IM->ArrayEltFlags = ~ctx->Array._Enabled;
  84    IM->ArrayEltIncr = ctx->Array.Vertex.Enabled ? 1 : 0;
  85    IM->ArrayEltFlush = ctx->Array.LockCount ? FLUSH_ELT_LAZY : FLUSH_ELT_EAGER;
  86 }
  87
  88 void _tnl_reset_exec_input( GLcontext *ctx,
  89                             GLuint start,
  90                             GLuint beginstate,
  91                             GLuint savedbeginstate )
  92 {
  93    TNLcontext *tnl = TNL_CONTEXT(ctx);
  94    struct immediate *IM = TNL_CURRENT_IM(ctx);
  95
  96    reset_input( ctx, start, beginstate, savedbeginstate );
  97
  98    IM->CopyStart = start - tnl->ExecCopyCount;
  99
 100    IM->Primitive[IM->CopyStart] = ctx->Driver.CurrentExecPrimitive;
 101    if (tnl->ExecParity)
 102       IM->Primitive[IM->CopyStart] |= PRIM_PARITY;
 103
 104    IM->LastPrimitive = IM->CopyStart;
 105 }
 106
 107
 108 void _tnl_reset_compile_input( GLcontext *ctx,
 109                             GLuint start,
 110                             GLuint beginstate,
 111                             GLuint savedbeginstate )
 112 {
 113    struct immediate *IM = TNL_CURRENT_IM(ctx);
 114
 115    reset_input( ctx, start, beginstate, savedbeginstate );
 116    IM->CopyStart = start;
 117    IM->LastPrimitive = IM->Start;
 118 }
 119
 120
 121 /*
 122  * Copy the last specified normal, color, texcoord, edge flag, etc
 123  * from the immediate struct into the ctx->Current attribute group.
 124  */
 125 void _tnl_copy_to_current( GLcontext *ctx, struct immediate *IM,
 126                            GLuint flag, GLuint count )
 127 {
 128    if (MESA_VERBOSE&VERBOSE_IMMEDIATE)
 129       _tnl_print_vert_flags("copy to current", flag);
 130
 131    if (flag & VERT_NORMAL_BIT)
 132       COPY_3FV( ctx->Current.Attrib[VERT_ATTRIB_NORMAL], IM->Normal[count]);
 133
 134    if (flag & VERT_INDEX_BIT)
 135       ctx->Current.Index = IM->Index[count];
 136
 137    if (flag & VERT_EDGEFLAG_BIT)
 138       ctx->Current.EdgeFlag = IM->EdgeFlag[count];
 139
 140    if (flag & VERT_COLOR0_BIT) {
 141       COPY_4FV(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], IM->Color[count]);
 142       if (ctx->Light.ColorMaterialEnabled) {
 143          _mesa_update_color_material( ctx, ctx->Current.Attrib[VERT_ATTRIB_COLOR0] );
 144          _mesa_validate_all_lighting_tables( ctx );
 145       }
 146    }
 147
 148    if (flag & VERT_COLOR1_BIT)
 149       COPY_4FV(ctx->Current.Attrib[VERT_ATTRIB_COLOR1], IM->SecondaryColor[count]);
 150
 151    if (flag & VERT_FOG_BIT)
 152       ctx->Current.Attrib[VERT_ATTRIB_FOG][0] = IM->FogCoord[count];
 153
 154    if (flag & VERT_TEX_ANY) {
 155       GLuint i;
 156       for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) {
 157          if (flag & VERT_TEX(i)) {
 158             COPY_4FV( ctx->Current.Attrib[VERT_ATTRIB_TEX0 + i], IM->TexCoord[i][count]);
 159          }
 160       }
 161    }
 162
 163    if (flag & VERT_MATERIAL) {
 164       _mesa_update_material( ctx,
 165                           IM->Material[IM->LastMaterial],
 166                           IM->MaterialOrMask );
 167
 168       _mesa_validate_all_lighting_tables( ctx );
 169    }
 170 }
 171
 172
 173
 174 void _tnl_compute_orflag( struct immediate *IM, GLuint start )
 175 {
 176    GLuint count = IM->Count;
 177    GLuint orflag = 0;
 178    GLuint andflag = ~0U;
 179    GLuint i;
 180
 181    IM->LastData = count-1;
 182
 183
 184    /* Compute the flags for the whole buffer.
 185     */
 186    for (i = start ; i < count ; i++) {
 187       andflag &= IM->Flag[i];
 188       orflag |= IM->Flag[i];
 189    }
 190
 191    /* It is possible there will be data in the buffer arising from
 192     * calls like 'glNormal', 'glMaterial' that occur after the final
 193     * glVertex, glEval, etc.  Additionally, a buffer can consist of
 194     * eg. a single glMaterial call, in which case IM->Start ==
 195     * IM->Count, but the buffer is definitely not empty.
 196     */
 197    if (IM->Flag[i] & VERT_DATA) {
 198       IM->LastData++;
 199       orflag |= IM->Flag[i];
 200    }
 201
 202    IM->Flag[IM->LastData+1] |= VERT_END_VB;
 203    IM->CopyAndFlag = IM->AndFlag = andflag;
 204    IM->OrFlag = orflag;
 205    IM->CopyOrFlag = orflag;
 206    IM->Evaluated = 0;
 207 }
 208
 209
 210 /*
 211  * This is where the vertex data is transfered from the 'struct immediate
 212  * into the 'struct vertex_buffer'.
 213  *
 214  * Note: The 'start' member of the GLvector structs is now redundant
 215  * because we always re-transform copied vertices, and the vectors
 216  * below are set up so that the first copied vertex (if any) appears
 217  * at position zero.
 218  */
 219 static void _tnl_vb_bind_immediate( GLcontext *ctx, struct immediate *IM )
 220 {
 221    TNLcontext *tnl = TNL_CONTEXT(ctx);
 222    struct vertex_buffer *VB = &tnl->vb;
 223    struct vertex_arrays *tmp = &tnl->imm_inputs;
 224    GLuint inputs = tnl->pipeline.inputs; /* for copy-to-current */
 225    GLuint start = IM->CopyStart;
 226    GLuint count = IM->Count - start;
 227
 228    /* TODO: optimize the case where nothing has changed.  (Just bind
 229     * tmp to vb).
 230     */
 231
 232    /* Setup constant data in the VB.
 233     */
 234    VB->Count = count;
 235    VB->FirstClipped = IMM_MAXDATA - IM->CopyStart;
 236    VB->import_data = 0;
 237    VB->importable_data = 0;
 238
 239    /* Need an IM->FirstPrimitive?
 240     */
 241    VB->Primitive = IM->Primitive + IM->CopyStart;
 242    VB->PrimitiveLength = IM->PrimitiveLength + IM->CopyStart;
 243    VB->FirstPrimitive = 0;
 244
 245    VB->Flag = IM->Flag + start;
 246
 247    /* TexCoordPtr's are zeroed in loop below.
 248     */
 249    VB->NormalPtr = 0;
 250    VB->NormalLengthPtr = 0;
 251    VB->FogCoordPtr = 0;
 252    VB->EdgeFlag = 0;
 253    VB->IndexPtr[0] = 0;
 254    VB->IndexPtr[1] = 0;
 255    VB->ColorPtr[0] = 0;
 256    VB->ColorPtr[1] = 0;
 257    VB->SecondaryColorPtr[0] = 0;
 258    VB->SecondaryColorPtr[1] = 0;
 259    VB->Elts = 0;
 260    VB->MaterialMask = 0;
 261    VB->Material = 0;
 262
 263 /*     _tnl_print_vert_flags("copy-orflag", IM->CopyOrFlag); */
 264 /*     _tnl_print_vert_flags("orflag", IM->OrFlag); */
 265 /*     _tnl_print_vert_flags("inputs", inputs); */
 266
 267    /* Setup the initial values of array pointers in the vb.
 268     */
 269    if (inputs & VERT_OBJ_BIT) {
 270       tmp->Obj.data = IM->Obj + start;
 271       tmp->Obj.start = (GLfloat *)(IM->Obj + start);
 272       tmp->Obj.count = count;
 273       VB->ObjPtr = &tmp->Obj;
 274       if ((IM->CopyOrFlag & VERT_OBJ_234) == VERT_OBJ_234)
 275          tmp->Obj.size = 4;
 276       else if ((IM->CopyOrFlag & VERT_OBJ_234) == VERT_OBJ_23)
 277          tmp->Obj.size = 3;
 278       else
 279          tmp->Obj.size = 2;
 280    }
 281
 282    if (inputs & VERT_NORMAL_BIT) {
 283       tmp->Normal.data = IM->Normal + start;
 284       tmp->Normal.start = (GLfloat *)(IM->Normal + start);
 285       tmp->Normal.count = count;
 286       VB->NormalPtr = &tmp->Normal;
 287       if (IM->NormalLengthPtr)
 288          VB->NormalLengthPtr = IM->NormalLengthPtr + start;
 289    }
 290
 291    if (inputs & VERT_INDEX_BIT) {
 292       tmp->Index.count = count;
 293       tmp->Index.data = IM->Index + start;
 294       tmp->Index.start = IM->Index + start;
 295       VB->IndexPtr[0] = &tmp->Index;
 296    }
 297
 298    if (inputs & VERT_FOG_BIT) {
 299       tmp->FogCoord.data = IM->FogCoord + start;
 300       tmp->FogCoord.start = IM->FogCoord + start;
 301       tmp->FogCoord.count = count;
 302       VB->FogCoordPtr = &tmp->FogCoord;
 303    }
 304
 305    if (inputs & VERT_COLOR1_BIT) {
 306       tmp->SecondaryColor.Ptr = IM->SecondaryColor + start;
 307       VB->SecondaryColorPtr[0] = &tmp->SecondaryColor;
 308    }
 309
 310    if (inputs & VERT_EDGEFLAG_BIT) {
 311       VB->EdgeFlag = IM->EdgeFlag + start;
 312    }
 313
 314    if (inputs & VERT_COLOR0_BIT) {
 315       if (IM->CopyOrFlag & VERT_COLOR0_BIT) {
 316          tmp->Color.Ptr = IM->Color + start;
 317          tmp->Color.StrideB = 4 * sizeof(GLfloat);
 318          tmp->Color.Flags = 0;
 319       }
 320       else {
 321          tmp->Color.Ptr = ctx->Current.Attrib[VERT_ATTRIB_COLOR0];
 322          tmp->Color.StrideB = 0;
 323          tmp->Color.Flags = CA_CLIENT_DATA; /* hack */
 324          VB->import_source = IM;
 325          VB->importable_data |= VERT_COLOR0_BIT;
 326          VB->import_data = _tnl_upgrade_current_data;
 327       }
 328       VB->ColorPtr[0] = &tmp->Color;
 329    }
 330
 331    if (inputs & VERT_TEX_ANY) {
 332       GLuint i;
 333       for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
 334          VB->TexCoordPtr[i] = 0;
 335          if (inputs & VERT_TEX(i)) {
 336             tmp->TexCoord[i].count = count;
 337             tmp->TexCoord[i].data = IM->TexCoord[i] + start;
 338             tmp->TexCoord[i].start = (GLfloat *)(IM->TexCoord[i] + start);
 339             tmp->TexCoord[i].size = 2;
 340             if (IM->TexSize & TEX_SIZE_3(i)) {
 341                tmp->TexCoord[i].size = 3;
 342                if (IM->TexSize & TEX_SIZE_4(i))
 343                   tmp->TexCoord[i].size = 4;
 344             }
 345             VB->TexCoordPtr[i] = &tmp->TexCoord[i];
 346          }
 347       }
 348    }
 349
 350    if ((inputs & VERT_MATERIAL) && IM->Material) {
 351       VB->MaterialMask = IM->MaterialMask + start;
 352       VB->Material = IM->Material + start;
 353    }
 354
 355    /* GL_NV_vertex_program */
 356    if (ctx->VertexProgram.Enabled) {
 357       GLuint attr;
 358       for (attr = 0; attr < 16; attr++) {
 359          tmp->Attribs[attr].count = count;
 360          tmp->Attribs[attr].data = IM->Attrib[attr] + start;
 361          tmp->Attribs[attr].start = (GLfloat *) (IM->Attrib[attr] + start);
 362          tmp->Attribs[attr].size = 4;
 363          VB->AttribPtr[attr] = &(tmp->Attribs[attr]);
 364       }
 365    }
 366 }
 367
 368
 369
 370
 371 /* Called by exec_vert_cassette, execute_compiled_cassette, but not
 372  * exec_elt_cassette.
 373  */
 374 void _tnl_run_cassette( GLcontext *ctx, struct immediate *IM )
 375 {
 376    TNLcontext *tnl = TNL_CONTEXT(ctx);
 377
 378    _tnl_vb_bind_immediate( ctx, IM );
 379
 380    if (IM->OrFlag & VERT_EVAL_ANY)
 381       _tnl_eval_immediate( ctx, IM );
 382
 383    /* Invalidate all stored data before and after run:
 384     */
 385    tnl->pipeline.run_input_changes |= tnl->pipeline.inputs;
 386    tnl->Driver.RunPipeline( ctx );
 387    tnl->pipeline.run_input_changes |= tnl->pipeline.inputs;
 388
 389    _tnl_copy_to_current( ctx, IM, IM->OrFlag, IM->LastData );
 390 }
 391
 392
 393 /* Called for regular vertex cassettes.
 394  */
 395 static void exec_vert_cassette( GLcontext *ctx, struct immediate *IM )
 396 {
 397 /*     fprintf(stderr, "%s\n", __FUNCTION__); */
 398
 399    if (IM->FlushElt) {
 400       /* Orflag is computed twice, but only reach this code if app is
 401        * using a mixture of glArrayElement() and glVertex() while
 402        * arrays are locked (else would be in exec_elt_cassette now).
 403        */
 404       ASSERT(ctx->Array.LockCount);
 405       ASSERT(IM->FlushElt == FLUSH_ELT_LAZY);
 406       _tnl_translate_array_elts( ctx, IM, IM->CopyStart, IM->Count );
 407       _tnl_compute_orflag( IM, IM->CopyStart );
 408    }
 409
 410    _tnl_fixup_input( ctx, IM );
 411 /*     _tnl_print_cassette( IM ); */
 412    _tnl_run_cassette( ctx, IM );
 413 }
 414
 415
 416 /* Called for pure, locked VERT_ELT cassettes instead of
 417  * _tnl_run_cassette.
 418  */
 419 static void exec_elt_cassette( GLcontext *ctx, struct immediate *IM )
 420 {
 421    TNLcontext *tnl = TNL_CONTEXT(ctx);
 422    struct vertex_buffer *VB = &tnl->vb;
 423
 424 /*     fprintf(stderr, "%s\n", __FUNCTION__); */
 425
 426    _tnl_vb_bind_arrays( ctx, ctx->Array.LockFirst, ctx->Array.LockCount );
 427
 428    /* Take only elements and primitive information from the immediate:
 429     */
 430    VB->Elts = IM->Elt + IM->CopyStart;
 431    VB->Primitive = IM->Primitive + IM->CopyStart;
 432    VB->PrimitiveLength = IM->PrimitiveLength + IM->CopyStart;
 433    VB->FirstPrimitive = 0;
 434
 435    /* Run the pipeline.  No input changes as a result of this action.
 436     */
 437    tnl->Driver.RunPipeline( ctx );
 438
 439    /* Still need to update current values:
 440     */
 441    if (ctx->Driver.CurrentExecPrimitive == GL_POLYGON+1) {
 442       _tnl_translate_array_elts( ctx, IM, IM->LastData, IM->LastData );
 443       _tnl_copy_to_current( ctx, IM, ctx->Array._Enabled, IM->LastData );
 444    }
 445 }
 446
 447
 448 static void
 449 exec_empty_cassette( GLcontext *ctx, struct immediate *IM )
 450 {
 451    if (IM->FlushElt)
 452       _tnl_translate_array_elts( ctx, IM, IM->CopyStart, IM->CopyStart );
 453
 454    _tnl_copy_to_current( ctx, IM, IM->OrFlag, IM->LastData );
 455 }
 456
 457
 458
 459 /* Called for all cassettes when not compiling or playing a display
 460  * list.
 461  */
 462 void _tnl_execute_cassette( GLcontext *ctx, struct immediate *IM )
 463 {
 464    TNLcontext *tnl = TNL_CONTEXT(ctx);
 465
 466    _tnl_compute_orflag( IM, IM->Start );
 467    _tnl_copy_immediate_vertices( ctx, IM );
 468    _tnl_get_exec_copy_verts( ctx, IM );
 469
 470    if (tnl->pipeline.build_state_changes)
 471       _tnl_validate_pipeline( ctx );
 472
 473    if (IM->CopyStart == IM->Count) {
 474       exec_empty_cassette( ctx, IM );
 475    }
 476    else if ((IM->CopyOrFlag & VERT_DATA) == VERT_ELT &&
 477             ctx->Array.LockCount &&
 478             ctx->Array.Vertex.Enabled) {
 479       exec_elt_cassette( ctx, IM );
 480    }
 481    else {
 482       exec_vert_cassette( ctx, IM );
 483    }
 484
 485    /* Only reuse the immediate if there are no copied vertices living
 486     * inside it:
 487     */
 488    {
 489       GLuint begin_state = IM->BeginState & (VERT_BEGIN_0|VERT_BEGIN_1);
 490       GLuint saved_begin_state = IM->SavedBeginState;
 491
 492       if (--IM->ref_count != 0) {
 493          IM = _tnl_alloc_immediate( ctx );
 494          SET_IMMEDIATE( ctx, IM );
 495       }
 496
 497       IM->ref_count++;
 498
 499       _tnl_reset_exec_input( ctx, IMM_MAX_COPIED_VERTS,
 500                              begin_state, saved_begin_state );
 501    }
 502
 503    if (ctx->Driver.CurrentExecPrimitive == GL_POLYGON+1)
 504       ctx->Driver.NeedFlush &= ~FLUSH_STORED_VERTICES;
 505 }
 506
 507
 508
 509
 510 /* Setup vector pointers that will be used to bind immediates to VB's.
 511  */
 512 void _tnl_imm_init( GLcontext *ctx )
 513 {
 514    TNLcontext *tnl = TNL_CONTEXT(ctx);
 515    struct vertex_arrays *tmp = &tnl->imm_inputs;
 516    GLuint i;
 517    static int firsttime = 1;
 518
 519    if (firsttime) {
 520       firsttime = 0;
 521       _tnl_imm_elt_init();
 522    }
 523
 524    ctx->swtnl_im = _tnl_alloc_immediate( ctx );
 525    TNL_CURRENT_IM(ctx)->ref_count++;
 526
 527    tnl->ExecCopyTexSize = 0;
 528    tnl->ExecCopyCount = 0;
 529    tnl->ExecCopySource = 0;
 530
 531    TNL_CURRENT_IM(ctx)->CopyStart = IMM_MAX_COPIED_VERTS;
 532
 533    _mesa_vector4f_init( &tmp->Obj, 0, 0 );
 534    _mesa_vector3f_init( &tmp->Normal, 0, 0 );
 535
 536    tmp->Color.Ptr = 0;
 537    tmp->Color.Type = GL_FLOAT;
 538    tmp->Color.Size = 4;
 539    tmp->Color.Stride = 0;
 540    tmp->Color.StrideB = 4 * sizeof(GLfloat);
 541    tmp->Color.Flags = 0;
 542
 543    tmp->SecondaryColor.Ptr = 0;
 544    tmp->SecondaryColor.Type = GL_FLOAT;
 545    tmp->SecondaryColor.Size = 4;
 546    tmp->SecondaryColor.Stride = 0;
 547    tmp->SecondaryColor.StrideB = 4 * sizeof(GLfloat);
 548    tmp->SecondaryColor.Flags = 0;
 549
 550    _mesa_vector1f_init( &tmp->FogCoord, 0, 0 );
 551    _mesa_vector1ui_init( &tmp->Index, 0, 0 );
 552    _mesa_vector1ub_init( &tmp->EdgeFlag, 0, 0 );
 553
 554    for (i = 0; i < ctx->Const.MaxTextureUnits; i++)
 555       _mesa_vector4f_init( &tmp->TexCoord[i], 0, 0);
 556
 557    /* Install the first immediate.  Intially outside begin/end.
 558     */
 559    _tnl_reset_exec_input( ctx, IMM_MAX_COPIED_VERTS, 0, 0 );
 560    tnl->ReplayHardBeginEnd = 0;
 561
 562    _tnl_imm_vtxfmt_init( ctx );
 563 }
 564
 565
 566 void _tnl_imm_destroy( GLcontext *ctx )
 567 {
 568    if (TNL_CURRENT_IM(ctx)) {
 569       TNL_CURRENT_IM(ctx)->ref_count--;
 570       if (TNL_CURRENT_IM(ctx)->ref_count == 0)
 571          _tnl_free_immediate( TNL_CURRENT_IM(ctx) );
 572       /*
 573        * Don't use SET_IMMEDIATE here, or else we'll whack the
 574        * _tnl_CurrentInput pointer - not good when another
 575        * context has already been made current.
 576        * So we just set the context's own tnl immediate pointer
 577        * to 0.
 578        */
 579       ctx->swtnl_im = 0;
 580    }
 581 }