src/mesa/tnl/t_imm_exec.c

   1 /* $Id: t_imm_exec.c,v 1.15 2001/03/08 15:23:47 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 /* Called to initialize new buffers, and to recycle old ones.
  61  */
  62 void _tnl_reset_input( GLcontext *ctx,
  63                        GLuint start,
  64                        GLuint beginstate,
  65                        GLuint savedbeginstate )
  66 {
  67    struct immediate *IM = TNL_CURRENT_IM(ctx);
  68
  69    /* Clear the dirty part of the flag array.
  70     */
  71    if (start < IM->Count+2)
  72       MEMSET(IM->Flag + start, 0, sizeof(GLuint) * (IM->Count+2-start));
  73
  74    IM->CopyStart = IM->Start = IM->Count = start;
  75    IM->Primitive[IM->Start] = (ctx->Driver.CurrentExecPrimitive | PRIM_LAST);
  76    IM->LastPrimitive = IM->Start;
  77    IM->BeginState = beginstate;
  78    IM->SavedBeginState = savedbeginstate;
  79    IM->TexSize = 0;
  80    IM->LastMaterial = 0;
  81    IM->MaterialOrMask = 0;
  82
  83    IM->ArrayEltFlags = ~ctx->Array._Enabled;
  84    IM->ArrayEltIncr = ctx->Array.Vertex.Enabled ? 1 : 0;
  85    IM->ArrayEltFlush = !ctx->Array.LockCount;
  86 }
  87
  88
  89
  90 void _tnl_copy_to_current( GLcontext *ctx, struct immediate *IM,
  91                            GLuint flag )
  92 {
  93    GLuint count = IM->LastData;
  94
  95    if (MESA_VERBOSE&VERBOSE_IMMEDIATE)
  96       _tnl_print_vert_flags("copy to current", flag);
  97
  98    if (flag & VERT_NORM)
  99       COPY_3FV( ctx->Current.Normal, IM->Normal[count]);
 100
 101    if (flag & VERT_INDEX)
 102       ctx->Current.Index = IM->Index[count];
 103
 104    if (flag & VERT_EDGE)
 105       ctx->Current.EdgeFlag = IM->EdgeFlag[count];
 106
 107    if (flag & VERT_RGBA) {
 108       COPY_CHAN4(ctx->Current.Color, IM->Color[count]);
 109       if (ctx->Light.ColorMaterialEnabled) {
 110          _mesa_update_color_material( ctx, ctx->Current.Color );
 111          _mesa_validate_all_lighting_tables( ctx );
 112       }
 113    }
 114
 115    if (flag & VERT_SPEC_RGB)
 116       COPY_CHAN4(ctx->Current.SecondaryColor, IM->SecondaryColor[count]);
 117
 118    if (flag & VERT_FOG_COORD)
 119       ctx->Current.FogCoord = IM->FogCoord[count];
 120
 121    if (flag & VERT_TEX_ANY) {
 122       GLuint i;
 123       for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) {
 124          if (flag & VERT_TEX(i)) {
 125             COPY_4FV( ctx->Current.Texcoord[0], IM->TexCoord[0][count]);
 126          }
 127       }
 128    }
 129
 130    if (flag & VERT_MATERIAL) {
 131       _mesa_update_material( ctx,
 132                           IM->Material[IM->LastMaterial],
 133                           IM->MaterialOrMask );
 134
 135       _mesa_validate_all_lighting_tables( ctx );
 136    }
 137 }
 138
 139
 140
 141 void _tnl_compute_orflag( struct immediate *IM )
 142 {
 143    GLuint count = IM->Count;
 144    GLuint orflag = 0;
 145    GLuint andflag = ~0U;
 146    GLuint i;
 147
 148    IM->LastData = count-1;
 149
 150
 151    /* Compute the flags for the whole buffer.
 152     */
 153    for (i = IM->CopyStart ; i < count ; i++) {
 154       andflag &= IM->Flag[i];
 155       orflag |= IM->Flag[i];
 156    }
 157
 158    /* It is possible there will be data in the buffer arising from
 159     * calls like 'glNormal', 'glMaterial' that occur after the final
 160     * glVertex, glEval, etc.  Additionally, a buffer can consist of
 161     * eg. a single glMaterial call, in which case IM->Start ==
 162     * IM->Count, but the buffer is definitely not empty.
 163     */
 164    if (IM->Flag[i] & VERT_DATA) {
 165       IM->LastData++;
 166       orflag |= IM->Flag[i];
 167    }
 168
 169    IM->Flag[IM->LastData+1] |= VERT_END_VB;
 170    IM->CopyAndFlag = IM->AndFlag = andflag;
 171    IM->CopyOrFlag = IM->OrFlag = orflag;
 172 }
 173
 174
 175
 176
 177
 178 /* Note: The 'start' member of the GLvector structs is now redundant
 179  * because we always re-transform copied vertices, and the vectors
 180  * below are set up so that the first copied vertex (if any) appears
 181  * at position zero.
 182  */
 183 static void _tnl_vb_bind_immediate( GLcontext *ctx, struct immediate *IM )
 184 {
 185    TNLcontext *tnl = TNL_CONTEXT(ctx);
 186    struct vertex_buffer *VB = &tnl->vb;
 187    struct vertex_arrays *tmp = &tnl->imm_inputs;
 188    GLuint inputs = tnl->pipeline.inputs; /* for copy-to-current */
 189    GLuint start = IM->CopyStart;
 190    GLuint count = IM->Count - start;
 191
 192    /* TODO: optimize the case where nothing has changed.  (Just bind
 193     * tmp to vb).
 194     */
 195
 196    /* Setup constant data in the VB.
 197     */
 198    VB->Count = count;
 199    VB->FirstClipped = IMM_MAXDATA - IM->CopyStart;
 200    VB->import_data = 0;
 201    VB->importable_data = 0;
 202
 203    /* Need an IM->FirstPrimitive?
 204     */
 205    VB->Primitive = IM->Primitive + IM->CopyStart;
 206    VB->PrimitiveLength = IM->PrimitiveLength + IM->CopyStart;
 207    VB->FirstPrimitive = 0;
 208
 209    VB->Flag = IM->Flag + start;
 210
 211    /* TexCoordPtr's are zeroed in loop below.
 212     */
 213    VB->NormalPtr = 0;
 214    VB->FogCoordPtr = 0;
 215    VB->EdgeFlag = 0;
 216    VB->IndexPtr[0] = 0;
 217    VB->IndexPtr[1] = 0;
 218    VB->ColorPtr[0] = 0;
 219    VB->ColorPtr[1] = 0;
 220    VB->SecondaryColorPtr[0] = 0;
 221    VB->SecondaryColorPtr[1] = 0;
 222    VB->Elts = 0;
 223    VB->MaterialMask = 0;
 224    VB->Material = 0;
 225
 226 /*     _tnl_print_vert_flags("copy-orflag", IM->CopyOrFlag); */
 227 /*     _tnl_print_vert_flags("orflag", IM->OrFlag); */
 228 /*     _tnl_print_vert_flags("inputs", inputs); */
 229
 230    /* Setup the initial values of array pointers in the vb.
 231     */
 232    if (inputs & VERT_OBJ) {
 233       tmp->Obj.data = IM->Obj + start;
 234       tmp->Obj.start = (GLfloat *)(IM->Obj + start);
 235       tmp->Obj.count = count;
 236       VB->ObjPtr = &tmp->Obj;
 237       if ((IM->CopyOrFlag & VERT_OBJ_234) == VERT_OBJ_234)
 238          tmp->Obj.size = 4;
 239       else if ((IM->CopyOrFlag & VERT_OBJ_234) == VERT_OBJ_23)
 240          tmp->Obj.size = 3;
 241       else
 242          tmp->Obj.size = 2;
 243    }
 244
 245    if (inputs & VERT_NORM) {
 246       tmp->Normal.data = IM->Normal + start;
 247       tmp->Normal.start = (GLfloat *)(IM->Normal + start);
 248       tmp->Normal.count = count;
 249       VB->NormalPtr = &tmp->Normal;
 250    }
 251
 252    if (inputs & VERT_INDEX) {
 253       tmp->Index.count = count;
 254       tmp->Index.data = IM->Index + start;
 255       tmp->Index.start = IM->Index + start;
 256       VB->IndexPtr[0] = &tmp->Index;
 257    }
 258
 259    if (inputs & VERT_FOG_COORD) {
 260       tmp->FogCoord.data = IM->FogCoord + start;
 261       tmp->FogCoord.start = IM->FogCoord + start;
 262       tmp->FogCoord.count = count;
 263       VB->FogCoordPtr = &tmp->FogCoord;
 264    }
 265
 266    if (inputs & VERT_SPEC_RGB) {
 267       tmp->SecondaryColor.data = IM->SecondaryColor + start;
 268       tmp->SecondaryColor.start = (GLchan *)(IM->SecondaryColor + start);
 269       tmp->SecondaryColor.count = count;
 270       VB->SecondaryColorPtr[0] = &tmp->SecondaryColor;
 271    }
 272
 273    if (inputs & VERT_EDGE) {
 274       VB->EdgeFlag = IM->EdgeFlag + start;
 275    }
 276
 277    if (inputs & VERT_RGBA) {
 278       tmp->Color.data = IM->Color + start;
 279       tmp->Color.start = (GLchan *)(IM->Color + start);
 280       tmp->Color.count = count;
 281       VB->ColorPtr[0] = &tmp->Color;
 282    }
 283
 284    if (inputs & VERT_TEX_ANY) {
 285       GLuint i;
 286       for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
 287          VB->TexCoordPtr[i] = 0;
 288          if (inputs & VERT_TEX(i)) {
 289             tmp->TexCoord[i].count = count;
 290             tmp->TexCoord[i].data = IM->TexCoord[i] + start;
 291             tmp->TexCoord[i].start = (GLfloat *)(IM->TexCoord[i] + start);
 292             tmp->TexCoord[i].size = 2;
 293             if (IM->TexSize & TEX_SIZE_3(i)) {
 294                tmp->TexCoord[i].size = 3;
 295                if (IM->TexSize & TEX_SIZE_4(i))
 296                   tmp->TexCoord[i].size = 4;
 297             }
 298             VB->TexCoordPtr[i] = &tmp->TexCoord[i];
 299          }
 300       }
 301    }
 302
 303    if ((inputs & VERT_MATERIAL) && IM->Material) {
 304       VB->MaterialMask = IM->MaterialMask + start;
 305       VB->Material = IM->Material + start;
 306    }
 307 }
 308
 309
 310
 311
 312 /* Called by exec_cassette and execute_compiled_cassette.
 313  */
 314 void _tnl_run_cassette( GLcontext *ctx, struct immediate *IM )
 315 {
 316    TNLcontext *tnl = TNL_CONTEXT(ctx);
 317
 318    _tnl_vb_bind_immediate( ctx, IM );
 319
 320    if (IM->CopyOrFlag & VERT_EVAL_ANY)
 321       _tnl_eval_vb( ctx,
 322                     IM->Obj + IM->CopyStart,
 323                     IM->CopyOrFlag,
 324                     IM->CopyAndFlag );
 325
 326
 327    /* Invalidate all stored data before and after run:
 328     */
 329    tnl->pipeline.run_input_changes |= tnl->pipeline.inputs;
 330    _tnl_run_pipeline( ctx );
 331    tnl->pipeline.run_input_changes |= tnl->pipeline.inputs;
 332
 333    _tnl_copy_to_current( ctx, IM, IM->OrFlag );
 334 }
 335
 336
 337
 338
 339 /* Called for pure, locked VERT_ELT cassettes instead of
 340  * _tnl_run_cassette.
 341  */
 342 static void exec_elt_cassette( GLcontext *ctx, struct immediate *IM )
 343 {
 344    TNLcontext *tnl = TNL_CONTEXT(ctx);
 345    struct vertex_buffer *VB = &tnl->vb;
 346
 347    _tnl_vb_bind_arrays( ctx, ctx->Array.LockFirst, ctx->Array.LockCount );
 348
 349    VB->Elts = IM->Elt + IM->CopyStart;
 350    VB->Primitive = IM->Primitive + IM->CopyStart;
 351    VB->PrimitiveLength = IM->PrimitiveLength + IM->CopyStart;
 352    VB->FirstPrimitive = 0;
 353
 354    /* Run the pipeline.  No input changes as a result of this action.
 355     */
 356    _tnl_run_pipeline( ctx );
 357
 358    /* Still need to update current values:  (TODO - copy from VB)
 359     * TODO: delay this until FlushVertices
 360     */
 361    if (ctx->Driver.CurrentExecPrimitive == GL_POLYGON+1) {
 362       _tnl_translate_array_elts( ctx, IM, IM->LastData, IM->LastData );
 363       _tnl_copy_to_current( ctx, IM, ctx->Array._Enabled );
 364    }
 365 }
 366
 367
 368
 369 /* Called for regular vertex cassettes.
 370  */
 371 static void exec_vert_cassette( GLcontext *ctx, struct immediate *IM )
 372 {
 373    if (IM->OrFlag & VERT_ELT) {
 374       GLuint andflag = ~0;
 375       GLuint i;
 376       GLuint start = IM->FlushElt ? IM->LastPrimitive : IM->CopyStart;
 377       _tnl_translate_array_elts( ctx, IM, start, IM->Count );
 378
 379       /* Need to recompute andflag.
 380        */
 381       if (IM->CopyAndFlag & VERT_ELT)
 382          IM->CopyAndFlag |= ctx->Array._Enabled;
 383       else {
 384          for (i = IM->CopyStart ; i < IM->Count ; i++)
 385             andflag &= IM->Flag[i];
 386          IM->CopyAndFlag = andflag;
 387       }
 388    }
 389
 390    _tnl_fixup_input( ctx, IM );
 391 /*     _tnl_print_cassette( IM ); */
 392    _tnl_run_cassette( ctx, IM );
 393 }
 394
 395
 396
 397 /* Called for all cassettes when not compiling or playing a display
 398  * list.
 399  */
 400 void _tnl_execute_cassette( GLcontext *ctx, struct immediate *IM )
 401 {
 402    TNLcontext *tnl = TNL_CONTEXT(ctx);
 403
 404    ASSERT(tnl->ExecCopySource == IM);
 405
 406    _tnl_compute_orflag( IM );
 407
 408    /* Mark the last primitive:
 409     */
 410    IM->PrimitiveLength[IM->LastPrimitive] = IM->Count - IM->LastPrimitive;
 411    ASSERT(IM->Primitive[IM->LastPrimitive] & PRIM_LAST);
 412
 413    if (tnl->pipeline.build_state_changes)
 414       _tnl_validate_pipeline( ctx );
 415
 416    _tnl_get_exec_copy_verts( ctx, IM );
 417
 418    if (IM->CopyStart == IM->Count) {
 419       if (IM->OrFlag & VERT_ELT)
 420          _tnl_translate_array_elts( ctx, IM, IM->CopyStart, IM->CopyStart );
 421
 422       _tnl_copy_to_current( ctx, IM, IM->OrFlag );
 423    }
 424    else if ((IM->OrFlag & VERT_DATA) == VERT_ELT &&
 425             ctx->Array.LockCount &&
 426             ctx->Array.Vertex.Enabled) {
 427       exec_elt_cassette( ctx, IM );
 428    }
 429    else {
 430       exec_vert_cassette( ctx, IM );
 431    }
 432
 433    _tnl_reset_input( ctx,
 434                      IMM_MAX_COPIED_VERTS,
 435                      IM->BeginState & (VERT_BEGIN_0|VERT_BEGIN_1),
 436                      IM->SavedBeginState );
 437
 438    /* Copy vertices and primitive information to immediate before it
 439     * can be overwritten.
 440     */
 441    _tnl_copy_immediate_vertices( ctx, IM );
 442
 443    if (ctx->Driver.CurrentExecPrimitive == GL_POLYGON+1)
 444       ctx->Driver.NeedFlush &= ~FLUSH_STORED_VERTICES;
 445 }
 446
 447
 448
 449
 450 /* Setup vector pointers that will be used to bind immediates to VB's.
 451  */
 452 void _tnl_imm_init( GLcontext *ctx )
 453 {
 454    TNLcontext *tnl = TNL_CONTEXT(ctx);
 455    struct vertex_arrays *tmp = &tnl->imm_inputs;
 456    GLuint i;
 457    static int firsttime = 1;
 458
 459    if (firsttime) {
 460       firsttime = 0;
 461       _tnl_imm_elt_init();
 462    }
 463
 464    ctx->swtnl_im = _tnl_alloc_immediate( ctx );
 465    TNL_CURRENT_IM(ctx)->ref_count++;
 466
 467    tnl->ExecCopyTexSize = 0;
 468    tnl->ExecCopyCount = 0;
 469    tnl->ExecCopySource = TNL_CURRENT_IM(ctx);
 470    TNL_CURRENT_IM(ctx)->ref_count++;
 471
 472    TNL_CURRENT_IM(ctx)->CopyStart = IMM_MAX_COPIED_VERTS;
 473
 474    _mesa_vector4f_init( &tmp->Obj, 0, 0 );
 475    _mesa_vector3f_init( &tmp->Normal, 0, 0 );
 476    _mesa_vector4chan_init( &tmp->Color, 0, 0 );
 477    _mesa_vector4chan_init( &tmp->SecondaryColor, 0, 0 );
 478    _mesa_vector1f_init( &tmp->FogCoord, 0, 0 );
 479    _mesa_vector1ui_init( &tmp->Index, 0, 0 );
 480    _mesa_vector1ub_init( &tmp->EdgeFlag, 0, 0 );
 481
 482    for (i = 0; i < ctx->Const.MaxTextureUnits; i++)
 483       _mesa_vector4f_init( &tmp->TexCoord[i], 0, 0);
 484
 485    /* Install the first immediate.  Intially outside begin/end.
 486     */
 487    _tnl_reset_input( ctx, IMM_MAX_COPIED_VERTS, 0, 0 );
 488    tnl->ReplayHardBeginEnd = 0;
 489
 490    _tnl_imm_vtxfmt_init( ctx );
 491 }
 492
 493
 494 void _tnl_imm_destroy( GLcontext *ctx )
 495 {
 496    if (TNL_CURRENT_IM(ctx))
 497       _tnl_free_immediate( TNL_CURRENT_IM(ctx) );
 498
 499 }