src/mesa/main/attrib.c

   1 /* $Id: attrib.c,v 1.60 2002/02/13 00:53:19 keithw 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
  27
  28 #ifdef PC_HEADER
  29 #include "all.h"
  30 #else
  31 #include "glheader.h"
  32 #include "accum.h"
  33 #include "attrib.h"
  34 #include "blend.h"
  35 #include "buffers.h"
  36 #include "clip.h"
  37 #include "colormac.h"
  38 #include "context.h"
  39 #include "depth.h"
  40 #include "enable.h"
  41 #include "enums.h"
  42 #include "fog.h"
  43 #include "hint.h"
  44 #include "light.h"
  45 #include "lines.h"
  46 #include "matrix.h"
  47 #include "mem.h"
  48 #include "points.h"
  49 #include "polygon.h"
  50 #include "simple_list.h"
  51 #include "stencil.h"
  52 #include "texobj.h"
  53 #include "texstate.h"
  54 #include "mtypes.h"
  55 #include "math/m_xform.h"
  56 #endif
  57
  58
  59
  60
  61 /*
  62  * Allocate a new attribute state node.  These nodes have a
  63  * "kind" value and a pointer to a struct of state data.
  64  */
  65 static struct gl_attrib_node *
  66 new_attrib_node( GLbitfield kind )
  67 {
  68    struct gl_attrib_node *an = MALLOC_STRUCT(gl_attrib_node);
  69    if (an) {
  70       an->kind = kind;
  71    }
  72    return an;
  73 }
  74
  75
  76
  77 /*
  78  * Copy texture object state from one texture object to another.
  79  */
  80 static void
  81 copy_texobj_state( struct gl_texture_object *dest,
  82                    const struct gl_texture_object *src )
  83 {
  84    dest->Name = src->Name;
  85    /*
  86    dest->Dimensions = src->Dimensions;
  87    */
  88    dest->Priority = src->Priority;
  89    dest->BorderColor[0] = src->BorderColor[0];
  90    dest->BorderColor[1] = src->BorderColor[1];
  91    dest->BorderColor[2] = src->BorderColor[2];
  92    dest->BorderColor[3] = src->BorderColor[3];
  93    dest->WrapS = src->WrapS;
  94    dest->WrapT = src->WrapT;
  95    dest->WrapR = src->WrapR;
  96    dest->MinFilter = src->MinFilter;
  97    dest->MagFilter = src->MagFilter;
  98    dest->MinLod = src->MinLod;
  99    dest->MaxLod = src->MaxLod;
 100    dest->BaseLevel = src->BaseLevel;
 101    dest->MaxLevel = src->MaxLevel;
 102    dest->MaxAnisotropy = src->MaxAnisotropy;
 103    dest->CompareFlag = src->CompareFlag;
 104    dest->CompareOperator = src->CompareOperator;
 105    dest->ShadowAmbient = src->ShadowAmbient;
 106    dest->_MaxLevel = src->_MaxLevel;
 107    dest->_MaxLambda = src->_MaxLambda;
 108    dest->Palette = src->Palette;
 109    dest->Complete = src->Complete;
 110 }
 111
 112
 113
 114 void
 115 _mesa_PushAttrib(GLbitfield mask)
 116 {
 117    struct gl_attrib_node *newnode;
 118    struct gl_attrib_node *head;
 119
 120    GET_CURRENT_CONTEXT(ctx);
 121    ASSERT_OUTSIDE_BEGIN_END(ctx);
 122
 123    if (MESA_VERBOSE&VERBOSE_API)
 124       fprintf(stderr, "glPushAttrib %x\n", (int)mask);
 125
 126    if (ctx->AttribStackDepth >= MAX_ATTRIB_STACK_DEPTH) {
 127       _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushAttrib" );
 128       return;
 129    }
 130
 131    /* Build linked list of attribute nodes which save all attribute */
 132    /* groups specified by the mask. */
 133    head = NULL;
 134
 135    if (mask & GL_ACCUM_BUFFER_BIT) {
 136       struct gl_accum_attrib *attr;
 137       attr = MALLOC_STRUCT( gl_accum_attrib );
 138       MEMCPY( attr, &ctx->Accum, sizeof(struct gl_accum_attrib) );
 139       newnode = new_attrib_node( GL_ACCUM_BUFFER_BIT );
 140       newnode->data = attr;
 141       newnode->next = head;
 142       head = newnode;
 143    }
 144
 145    if (mask & GL_COLOR_BUFFER_BIT) {
 146       struct gl_colorbuffer_attrib *attr;
 147       attr = MALLOC_STRUCT( gl_colorbuffer_attrib );
 148       MEMCPY( attr, &ctx->Color, sizeof(struct gl_colorbuffer_attrib) );
 149       newnode = new_attrib_node( GL_COLOR_BUFFER_BIT );
 150       newnode->data = attr;
 151       newnode->next = head;
 152       head = newnode;
 153    }
 154
 155    if (mask & GL_CURRENT_BIT) {
 156       struct gl_current_attrib *attr;
 157       FLUSH_CURRENT( ctx, 0 );
 158       attr = MALLOC_STRUCT( gl_current_attrib );
 159       MEMCPY( attr, &ctx->Current, sizeof(struct gl_current_attrib) );
 160       newnode = new_attrib_node( GL_CURRENT_BIT );
 161       newnode->data = attr;
 162       newnode->next = head;
 163       head = newnode;
 164    }
 165
 166    if (mask & GL_DEPTH_BUFFER_BIT) {
 167       struct gl_depthbuffer_attrib *attr;
 168       attr = MALLOC_STRUCT( gl_depthbuffer_attrib );
 169       MEMCPY( attr, &ctx->Depth, sizeof(struct gl_depthbuffer_attrib) );
 170       newnode = new_attrib_node( GL_DEPTH_BUFFER_BIT );
 171       newnode->data = attr;
 172       newnode->next = head;
 173       head = newnode;
 174    }
 175
 176    if (mask & GL_ENABLE_BIT) {
 177       struct gl_enable_attrib *attr;
 178       GLuint i;
 179       attr = MALLOC_STRUCT( gl_enable_attrib );
 180       /* Copy enable flags from all other attributes into the enable struct. */
 181       attr->AlphaTest = ctx->Color.AlphaEnabled;
 182       attr->AutoNormal = ctx->Eval.AutoNormal;
 183       attr->Blend = ctx->Color.BlendEnabled;
 184       for (i=0;i<MAX_CLIP_PLANES;i++) {
 185          attr->ClipPlane[i] = ctx->Transform.ClipEnabled[i];
 186       }
 187       attr->ColorMaterial = ctx->Light.ColorMaterialEnabled;
 188       attr->Convolution1D = ctx->Pixel.Convolution1DEnabled;
 189       attr->Convolution2D = ctx->Pixel.Convolution2DEnabled;
 190       attr->Separable2D = ctx->Pixel.Separable2DEnabled;
 191       attr->CullFace = ctx->Polygon.CullFlag;
 192       attr->DepthTest = ctx->Depth.Test;
 193       attr->Dither = ctx->Color.DitherFlag;
 194       attr->Fog = ctx->Fog.Enabled;
 195       for (i=0;i<MAX_LIGHTS;i++) {
 196          attr->Light[i] = ctx->Light.Light[i].Enabled;
 197       }
 198       attr->Lighting = ctx->Light.Enabled;
 199       attr->LineSmooth = ctx->Line.SmoothFlag;
 200       attr->LineStipple = ctx->Line.StippleFlag;
 201       attr->Histogram = ctx->Pixel.HistogramEnabled;
 202       attr->MinMax = ctx->Pixel.MinMaxEnabled;
 203       attr->IndexLogicOp = ctx->Color.IndexLogicOpEnabled;
 204       attr->ColorLogicOp = ctx->Color.ColorLogicOpEnabled;
 205       attr->Map1Color4 = ctx->Eval.Map1Color4;
 206       attr->Map1Index = ctx->Eval.Map1Index;
 207       attr->Map1Normal = ctx->Eval.Map1Normal;
 208       attr->Map1TextureCoord1 = ctx->Eval.Map1TextureCoord1;
 209       attr->Map1TextureCoord2 = ctx->Eval.Map1TextureCoord2;
 210       attr->Map1TextureCoord3 = ctx->Eval.Map1TextureCoord3;
 211       attr->Map1TextureCoord4 = ctx->Eval.Map1TextureCoord4;
 212       attr->Map1Vertex3 = ctx->Eval.Map1Vertex3;
 213       attr->Map1Vertex4 = ctx->Eval.Map1Vertex4;
 214       MEMCPY(attr->Map1Attrib, ctx->Eval.Map1Attrib, sizeof(ctx->Eval.Map1Attrib));
 215       attr->Map2Color4 = ctx->Eval.Map2Color4;
 216       attr->Map2Index = ctx->Eval.Map2Index;
 217       attr->Map2Normal = ctx->Eval.Map2Normal;
 218       attr->Map2TextureCoord1 = ctx->Eval.Map2TextureCoord1;
 219       attr->Map2TextureCoord2 = ctx->Eval.Map2TextureCoord2;
 220       attr->Map2TextureCoord3 = ctx->Eval.Map2TextureCoord3;
 221       attr->Map2TextureCoord4 = ctx->Eval.Map2TextureCoord4;
 222       attr->Map2Vertex3 = ctx->Eval.Map2Vertex3;
 223       attr->Map2Vertex4 = ctx->Eval.Map2Vertex4;
 224       MEMCPY(attr->Map2Attrib, ctx->Eval.Map2Attrib, sizeof(ctx->Eval.Map2Attrib));
 225       attr->Normalize = ctx->Transform.Normalize;
 226       attr->RasterPositionUnclipped = ctx->Transform.RasterPositionUnclipped;
 227       attr->PixelTexture = ctx->Pixel.PixelTextureEnabled;
 228       attr->PointSmooth = ctx->Point.SmoothFlag;
 229       attr->PolygonOffsetPoint = ctx->Polygon.OffsetPoint;
 230       attr->PolygonOffsetLine = ctx->Polygon.OffsetLine;
 231       attr->PolygonOffsetFill = ctx->Polygon.OffsetFill;
 232       attr->PolygonSmooth = ctx->Polygon.SmoothFlag;
 233       attr->PolygonStipple = ctx->Polygon.StippleFlag;
 234       attr->RescaleNormals = ctx->Transform.RescaleNormals;
 235       attr->Scissor = ctx->Scissor.Enabled;
 236       attr->Stencil = ctx->Stencil.Enabled;
 237       attr->MultisampleEnabled = ctx->Multisample.Enabled;
 238       attr->SampleAlphaToCoverage = ctx->Multisample.SampleAlphaToCoverage;
 239       attr->SampleAlphaToOne = ctx->Multisample.SampleAlphaToOne;
 240       attr->SampleCoverage = ctx->Multisample.SampleCoverage;
 241       attr->SampleCoverageInvert = ctx->Multisample.SampleCoverageInvert;
 242       for (i=0; i<MAX_TEXTURE_UNITS; i++) {
 243          attr->Texture[i] = ctx->Texture.Unit[i].Enabled;
 244          attr->TexGen[i] = ctx->Texture.Unit[i].TexGenEnabled;
 245       }
 246       /* GL_NV_vertex_program */
 247       attr->VertexProgram = ctx->VertexProgram.Enabled;
 248       attr->VertexProgramPointSize = ctx->VertexProgram.PointSizeEnabled;
 249       attr->VertexProgramTwoSide = ctx->VertexProgram.TwoSideEnabled;
 250       newnode = new_attrib_node( GL_ENABLE_BIT );
 251       newnode->data = attr;
 252       newnode->next = head;
 253       head = newnode;
 254    }
 255
 256    if (mask & GL_EVAL_BIT) {
 257       struct gl_eval_attrib *attr;
 258       attr = MALLOC_STRUCT( gl_eval_attrib );
 259       MEMCPY( attr, &ctx->Eval, sizeof(struct gl_eval_attrib) );
 260       newnode = new_attrib_node( GL_EVAL_BIT );
 261       newnode->data = attr;
 262       newnode->next = head;
 263       head = newnode;
 264    }
 265
 266    if (mask & GL_FOG_BIT) {
 267       struct gl_fog_attrib *attr;
 268       attr = MALLOC_STRUCT( gl_fog_attrib );
 269       MEMCPY( attr, &ctx->Fog, sizeof(struct gl_fog_attrib) );
 270       newnode = new_attrib_node( GL_FOG_BIT );
 271       newnode->data = attr;
 272       newnode->next = head;
 273       head = newnode;
 274    }
 275
 276    if (mask & GL_HINT_BIT) {
 277       struct gl_hint_attrib *attr;
 278       attr = MALLOC_STRUCT( gl_hint_attrib );
 279       MEMCPY( attr, &ctx->Hint, sizeof(struct gl_hint_attrib) );
 280       newnode = new_attrib_node( GL_HINT_BIT );
 281       newnode->data = attr;
 282       newnode->next = head;
 283       head = newnode;
 284    }
 285
 286    if (mask & GL_LIGHTING_BIT) {
 287       struct gl_light_attrib *attr;
 288       FLUSH_CURRENT(ctx, 0);    /* flush material changes */
 289       attr = MALLOC_STRUCT( gl_light_attrib );
 290       MEMCPY( attr, &ctx->Light, sizeof(struct gl_light_attrib) );
 291       newnode = new_attrib_node( GL_LIGHTING_BIT );
 292       newnode->data = attr;
 293       newnode->next = head;
 294       head = newnode;
 295    }
 296
 297    if (mask & GL_LINE_BIT) {
 298       struct gl_line_attrib *attr;
 299       attr = MALLOC_STRUCT( gl_line_attrib );
 300       MEMCPY( attr, &ctx->Line, sizeof(struct gl_line_attrib) );
 301       newnode = new_attrib_node( GL_LINE_BIT );
 302       newnode->data = attr;
 303       newnode->next = head;
 304       head = newnode;
 305    }
 306
 307    if (mask & GL_LIST_BIT) {
 308       struct gl_list_attrib *attr;
 309       attr = MALLOC_STRUCT( gl_list_attrib );
 310       MEMCPY( attr, &ctx->List, sizeof(struct gl_list_attrib) );
 311       newnode = new_attrib_node( GL_LIST_BIT );
 312       newnode->data = attr;
 313       newnode->next = head;
 314       head = newnode;
 315    }
 316
 317    if (mask & GL_PIXEL_MODE_BIT) {
 318       struct gl_pixel_attrib *attr;
 319       attr = MALLOC_STRUCT( gl_pixel_attrib );
 320       MEMCPY( attr, &ctx->Pixel, sizeof(struct gl_pixel_attrib) );
 321       newnode = new_attrib_node( GL_PIXEL_MODE_BIT );
 322       newnode->data = attr;
 323       newnode->next = head;
 324       head = newnode;
 325    }
 326
 327    if (mask & GL_POINT_BIT) {
 328       struct gl_point_attrib *attr;
 329       attr = MALLOC_STRUCT( gl_point_attrib );
 330       MEMCPY( attr, &ctx->Point, sizeof(struct gl_point_attrib) );
 331       newnode = new_attrib_node( GL_POINT_BIT );
 332       newnode->data = attr;
 333       newnode->next = head;
 334       head = newnode;
 335    }
 336
 337    if (mask & GL_POLYGON_BIT) {
 338       struct gl_polygon_attrib *attr;
 339       attr = MALLOC_STRUCT( gl_polygon_attrib );
 340       MEMCPY( attr, &ctx->Polygon, sizeof(struct gl_polygon_attrib) );
 341       newnode = new_attrib_node( GL_POLYGON_BIT );
 342       newnode->data = attr;
 343       newnode->next = head;
 344       head = newnode;
 345    }
 346
 347    if (mask & GL_POLYGON_STIPPLE_BIT) {
 348       GLuint *stipple;
 349       stipple = (GLuint *) MALLOC( 32*sizeof(GLuint) );
 350       MEMCPY( stipple, ctx->PolygonStipple, 32*sizeof(GLuint) );
 351       newnode = new_attrib_node( GL_POLYGON_STIPPLE_BIT );
 352       newnode->data = stipple;
 353       newnode->next = head;
 354       head = newnode;
 355    }
 356
 357    if (mask & GL_SCISSOR_BIT) {
 358       struct gl_scissor_attrib *attr;
 359       attr = MALLOC_STRUCT( gl_scissor_attrib );
 360       MEMCPY( attr, &ctx->Scissor, sizeof(struct gl_scissor_attrib) );
 361       newnode = new_attrib_node( GL_SCISSOR_BIT );
 362       newnode->data = attr;
 363       newnode->next = head;
 364       head = newnode;
 365    }
 366
 367    if (mask & GL_STENCIL_BUFFER_BIT) {
 368       struct gl_stencil_attrib *attr;
 369       attr = MALLOC_STRUCT( gl_stencil_attrib );
 370       MEMCPY( attr, &ctx->Stencil, sizeof(struct gl_stencil_attrib) );
 371       newnode = new_attrib_node( GL_STENCIL_BUFFER_BIT );
 372       newnode->data = attr;
 373       newnode->next = head;
 374       head = newnode;
 375    }
 376
 377    if (mask & GL_TEXTURE_BIT) {
 378       struct gl_texture_attrib *attr;
 379       GLuint u;
 380       /* Bump the texture object reference counts so that they don't
 381        * inadvertantly get deleted.
 382        */
 383       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 384          ctx->Texture.Unit[u].Current1D->RefCount++;
 385          ctx->Texture.Unit[u].Current2D->RefCount++;
 386          ctx->Texture.Unit[u].Current3D->RefCount++;
 387          ctx->Texture.Unit[u].CurrentCubeMap->RefCount++;
 388       }
 389       attr = MALLOC_STRUCT( gl_texture_attrib );
 390       MEMCPY( attr, &ctx->Texture, sizeof(struct gl_texture_attrib) );
 391       /* copy state of the currently bound texture objects */
 392       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 393          copy_texobj_state(&attr->Unit[u].Saved1D, attr->Unit[u].Current1D);
 394          copy_texobj_state(&attr->Unit[u].Saved2D, attr->Unit[u].Current2D);
 395          copy_texobj_state(&attr->Unit[u].Saved3D, attr->Unit[u].Current3D);
 396          copy_texobj_state(&attr->Unit[u].SavedCubeMap, attr->Unit[u].CurrentCubeMap);
 397       }
 398       newnode = new_attrib_node( GL_TEXTURE_BIT );
 399       newnode->data = attr;
 400       newnode->next = head;
 401       head = newnode;
 402    }
 403
 404    if (mask & GL_TRANSFORM_BIT) {
 405       struct gl_transform_attrib *attr;
 406       attr = MALLOC_STRUCT( gl_transform_attrib );
 407       MEMCPY( attr, &ctx->Transform, sizeof(struct gl_transform_attrib) );
 408       newnode = new_attrib_node( GL_TRANSFORM_BIT );
 409       newnode->data = attr;
 410       newnode->next = head;
 411       head = newnode;
 412    }
 413
 414    if (mask & GL_VIEWPORT_BIT) {
 415       struct gl_viewport_attrib *attr;
 416       attr = MALLOC_STRUCT( gl_viewport_attrib );
 417       MEMCPY( attr, &ctx->Viewport, sizeof(struct gl_viewport_attrib) );
 418       newnode = new_attrib_node( GL_VIEWPORT_BIT );
 419       newnode->data = attr;
 420       newnode->next = head;
 421       head = newnode;
 422    }
 423
 424    /* GL_ARB_multisample */
 425    if (mask & GL_MULTISAMPLE_BIT_ARB) {
 426       struct gl_multisample_attrib *attr;
 427       attr = MALLOC_STRUCT( gl_multisample_attrib );
 428       MEMCPY( attr, &ctx->Multisample, sizeof(struct gl_multisample_attrib) );
 429       newnode = new_attrib_node( GL_MULTISAMPLE_BIT_ARB );
 430       newnode->data = attr;
 431       newnode->next = head;
 432       head = newnode;
 433    }
 434
 435    ctx->AttribStack[ctx->AttribStackDepth] = head;
 436    ctx->AttribStackDepth++;
 437 }
 438
 439
 440
 441 static void
 442 pop_enable_group(GLcontext *ctx, const struct gl_enable_attrib *enable)
 443 {
 444    GLuint i;
 445
 446 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM)          \
 447         if ((VALUE) != (NEWVALUE)) {                    \
 448            _mesa_set_enable( ctx, ENUM, (NEWVALUE) );   \
 449         }
 450
 451    TEST_AND_UPDATE(ctx->Color.AlphaEnabled, enable->AlphaTest, GL_ALPHA_TEST);
 452    TEST_AND_UPDATE(ctx->Color.BlendEnabled, enable->Blend, GL_BLEND);
 453
 454    for (i=0;i<MAX_CLIP_PLANES;i++) {
 455       if (ctx->Transform.ClipEnabled[i] != enable->ClipPlane[i])
 456          _mesa_set_enable(ctx, (GLenum) (GL_CLIP_PLANE0 + i),
 457                           enable->ClipPlane[i]);
 458    }
 459
 460    TEST_AND_UPDATE(ctx->Light.ColorMaterialEnabled, enable->ColorMaterial,
 461                    GL_COLOR_MATERIAL);
 462    TEST_AND_UPDATE(ctx->Polygon.CullFlag, enable->CullFace, GL_CULL_FACE);
 463    TEST_AND_UPDATE(ctx->Depth.Test, enable->DepthTest, GL_DEPTH_TEST);
 464    TEST_AND_UPDATE(ctx->Color.DitherFlag, enable->Dither, GL_DITHER);
 465    TEST_AND_UPDATE(ctx->Pixel.Convolution1DEnabled, enable->Convolution1D,
 466                    GL_CONVOLUTION_1D);
 467    TEST_AND_UPDATE(ctx->Pixel.Convolution2DEnabled, enable->Convolution2D,
 468                    GL_CONVOLUTION_2D);
 469    TEST_AND_UPDATE(ctx->Pixel.Separable2DEnabled, enable->Separable2D,
 470                    GL_SEPARABLE_2D);
 471    TEST_AND_UPDATE(ctx->Fog.Enabled, enable->Fog, GL_FOG);
 472    TEST_AND_UPDATE(ctx->Light.Enabled, enable->Lighting, GL_LIGHTING);
 473    TEST_AND_UPDATE(ctx->Line.SmoothFlag, enable->LineSmooth, GL_LINE_SMOOTH);
 474    TEST_AND_UPDATE(ctx->Line.StippleFlag, enable->LineStipple,
 475                    GL_LINE_STIPPLE);
 476    TEST_AND_UPDATE(ctx->Color.IndexLogicOpEnabled, enable->IndexLogicOp,
 477                    GL_INDEX_LOGIC_OP);
 478    TEST_AND_UPDATE(ctx->Color.ColorLogicOpEnabled, enable->ColorLogicOp,
 479                    GL_COLOR_LOGIC_OP);
 480
 481    TEST_AND_UPDATE(ctx->Eval.Map1Color4, enable->Map1Color4, GL_MAP1_COLOR_4);
 482    TEST_AND_UPDATE(ctx->Eval.Map1Index, enable->Map1Index, GL_MAP1_INDEX);
 483    TEST_AND_UPDATE(ctx->Eval.Map1Normal, enable->Map1Normal, GL_MAP1_NORMAL);
 484    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord1, enable->Map1TextureCoord1,
 485                    GL_MAP1_TEXTURE_COORD_1);
 486    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord2, enable->Map1TextureCoord2,
 487                    GL_MAP1_TEXTURE_COORD_2);
 488    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord3, enable->Map1TextureCoord3,
 489                    GL_MAP1_TEXTURE_COORD_3);
 490    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord4, enable->Map1TextureCoord4,
 491                    GL_MAP1_TEXTURE_COORD_4);
 492    TEST_AND_UPDATE(ctx->Eval.Map1Vertex3, enable->Map1Vertex3,
 493                    GL_MAP1_VERTEX_3);
 494    TEST_AND_UPDATE(ctx->Eval.Map1Vertex4, enable->Map1Vertex4,
 495                    GL_MAP1_VERTEX_4);
 496    for (i = 0; i < 16; i++) {
 497       TEST_AND_UPDATE(ctx->Eval.Map1Attrib[i], enable->Map1Attrib[i],
 498                       GL_MAP1_VERTEX_ATTRIB0_4_NV + i);
 499    }
 500
 501    TEST_AND_UPDATE(ctx->Eval.Map2Color4, enable->Map2Color4, GL_MAP2_COLOR_4);
 502    TEST_AND_UPDATE(ctx->Eval.Map2Index, enable->Map2Index, GL_MAP2_INDEX);
 503    TEST_AND_UPDATE(ctx->Eval.Map2Normal, enable->Map2Normal, GL_MAP2_NORMAL);
 504    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord1, enable->Map2TextureCoord1,
 505                    GL_MAP2_TEXTURE_COORD_1);
 506    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord2, enable->Map2TextureCoord2,
 507                    GL_MAP2_TEXTURE_COORD_2);
 508    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord3, enable->Map2TextureCoord3,
 509                    GL_MAP2_TEXTURE_COORD_3);
 510    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord4, enable->Map2TextureCoord4,
 511                    GL_MAP2_TEXTURE_COORD_4);
 512    TEST_AND_UPDATE(ctx->Eval.Map2Vertex3, enable->Map2Vertex3,
 513                    GL_MAP2_VERTEX_3);
 514    TEST_AND_UPDATE(ctx->Eval.Map2Vertex4, enable->Map2Vertex4,
 515                    GL_MAP2_VERTEX_4);
 516    for (i = 0; i < 16; i++) {
 517       TEST_AND_UPDATE(ctx->Eval.Map2Attrib[i], enable->Map2Attrib[i],
 518                       GL_MAP2_VERTEX_ATTRIB0_4_NV + i);
 519    }
 520
 521    TEST_AND_UPDATE(ctx->Eval.AutoNormal, enable->AutoNormal, GL_AUTO_NORMAL);
 522    TEST_AND_UPDATE(ctx->Transform.Normalize, enable->Normalize, GL_NORMALIZE);
 523    TEST_AND_UPDATE(ctx->Transform.RescaleNormals, enable->RescaleNormals,
 524                    GL_RESCALE_NORMAL_EXT);
 525    TEST_AND_UPDATE(ctx->Transform.RasterPositionUnclipped,
 526                    enable->RasterPositionUnclipped,
 527                    GL_RASTER_POSITION_UNCLIPPED_IBM);
 528    TEST_AND_UPDATE(ctx->Pixel.PixelTextureEnabled, enable->PixelTexture,
 529                    GL_POINT_SMOOTH);
 530    TEST_AND_UPDATE(ctx->Point.SmoothFlag, enable->PointSmooth,
 531                    GL_POINT_SMOOTH);
 532    TEST_AND_UPDATE(ctx->Polygon.OffsetPoint, enable->PolygonOffsetPoint,
 533                    GL_POLYGON_OFFSET_POINT);
 534    TEST_AND_UPDATE(ctx->Polygon.OffsetLine, enable->PolygonOffsetLine,
 535                    GL_POLYGON_OFFSET_LINE);
 536    TEST_AND_UPDATE(ctx->Polygon.OffsetFill, enable->PolygonOffsetFill,
 537                    GL_POLYGON_OFFSET_FILL);
 538    TEST_AND_UPDATE(ctx->Polygon.SmoothFlag, enable->PolygonSmooth,
 539                    GL_POLYGON_SMOOTH);
 540    TEST_AND_UPDATE(ctx->Polygon.StippleFlag, enable->PolygonStipple,
 541                    GL_POLYGON_STIPPLE);
 542    TEST_AND_UPDATE(ctx->Scissor.Enabled, enable->Scissor, GL_SCISSOR_TEST);
 543    TEST_AND_UPDATE(ctx->Stencil.Enabled, enable->Stencil, GL_STENCIL_TEST);
 544    TEST_AND_UPDATE(ctx->Multisample.Enabled, enable->MultisampleEnabled,
 545                    GL_MULTISAMPLE_ARB);
 546    TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToCoverage,
 547                    enable->SampleAlphaToCoverage,
 548                    GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);
 549    TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToOne,
 550                    enable->SampleAlphaToOne,
 551                    GL_SAMPLE_ALPHA_TO_ONE_ARB);
 552    TEST_AND_UPDATE(ctx->Multisample.SampleCoverage,
 553                    enable->SampleCoverage,
 554                    GL_SAMPLE_COVERAGE_ARB);
 555    TEST_AND_UPDATE(ctx->Multisample.SampleCoverageInvert,
 556                    enable->SampleCoverageInvert,
 557                    GL_SAMPLE_COVERAGE_INVERT_ARB);
 558    /* GL_NV_vertex_program */
 559    TEST_AND_UPDATE(ctx->VertexProgram.Enabled,
 560                    enable->VertexProgram,
 561                    GL_VERTEX_PROGRAM_NV);
 562    TEST_AND_UPDATE(ctx->VertexProgram.PointSizeEnabled,
 563                    enable->VertexProgramPointSize,
 564                    GL_VERTEX_PROGRAM_POINT_SIZE_NV);
 565    TEST_AND_UPDATE(ctx->VertexProgram.TwoSideEnabled,
 566                    enable->VertexProgramTwoSide,
 567                    GL_VERTEX_PROGRAM_TWO_SIDE_NV);
 568
 569 #undef TEST_AND_UPDATE
 570
 571    /* texture unit enables */
 572    for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
 573       if (ctx->Texture.Unit[i].Enabled != enable->Texture[i]) {
 574          ctx->Texture.Unit[i].Enabled = enable->Texture[i];
 575          if (ctx->Driver.Enable) {
 576             if (ctx->Driver.ActiveTexture) {
 577                (*ctx->Driver.ActiveTexture)(ctx, i);
 578             }
 579             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_1D,
 580                              (GLboolean) (enable->Texture[i] & TEXTURE0_1D) );
 581             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_2D,
 582                              (GLboolean) (enable->Texture[i] & TEXTURE0_2D) );
 583             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_3D,
 584                              (GLboolean) (enable->Texture[i] & TEXTURE0_3D) );
 585          }
 586       }
 587
 588       if (ctx->Texture.Unit[i].TexGenEnabled != enable->TexGen[i]) {
 589          ctx->Texture.Unit[i].TexGenEnabled = enable->TexGen[i];
 590          if (ctx->Driver.Enable) {
 591             if (ctx->Driver.ActiveTexture) {
 592                (*ctx->Driver.ActiveTexture)(ctx, i);
 593             }
 594             if (enable->TexGen[i] & S_BIT)
 595                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_TRUE);
 596             else
 597                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_FALSE);
 598             if (enable->TexGen[i] & T_BIT)
 599                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_TRUE);
 600             else
 601                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_FALSE);
 602             if (enable->TexGen[i] & R_BIT)
 603                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_TRUE);
 604             else
 605                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_FALSE);
 606             if (enable->TexGen[i] & Q_BIT)
 607                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_TRUE);
 608             else
 609                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_FALSE);
 610          }
 611       }
 612    }
 613
 614    if (ctx->Driver.ActiveTexture) {
 615       (*ctx->Driver.ActiveTexture)(ctx, ctx->Texture.CurrentUnit);
 616    }
 617 }
 618
 619
 620 static void
 621 pop_texture_group(GLcontext *ctx, const struct gl_texture_attrib *texAttrib)
 622 {
 623    GLuint u;
 624
 625    for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 626       const struct gl_texture_unit *unit = &texAttrib->Unit[u];
 627       GLuint numObjs, i;
 628
 629       _mesa_ActiveTextureARB(GL_TEXTURE0_ARB + u);
 630       _mesa_set_enable(ctx, GL_TEXTURE_1D,
 631               (GLboolean) (unit->Enabled & TEXTURE0_1D ? GL_TRUE : GL_FALSE));
 632       _mesa_set_enable(ctx, GL_TEXTURE_2D,
 633               (GLboolean) (unit->Enabled & TEXTURE0_2D ? GL_TRUE : GL_FALSE));
 634       _mesa_set_enable(ctx, GL_TEXTURE_3D,
 635               (GLboolean) (unit->Enabled & TEXTURE0_3D ? GL_TRUE : GL_FALSE));
 636       if (ctx->Extensions.ARB_texture_cube_map) {
 637          _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP_ARB,
 638              (GLboolean) (unit->Enabled & TEXTURE0_CUBE ? GL_TRUE : GL_FALSE));
 639       }
 640       _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, unit->EnvMode);
 641       _mesa_TexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, unit->EnvColor);
 642       _mesa_TexGeni(GL_S, GL_TEXTURE_GEN_MODE, unit->GenModeS);
 643       _mesa_TexGeni(GL_T, GL_TEXTURE_GEN_MODE, unit->GenModeT);
 644       _mesa_TexGeni(GL_R, GL_TEXTURE_GEN_MODE, unit->GenModeR);
 645       _mesa_TexGeni(GL_Q, GL_TEXTURE_GEN_MODE, unit->GenModeQ);
 646       _mesa_TexGenfv(GL_S, GL_OBJECT_PLANE, unit->ObjectPlaneS);
 647       _mesa_TexGenfv(GL_T, GL_OBJECT_PLANE, unit->ObjectPlaneT);
 648       _mesa_TexGenfv(GL_R, GL_OBJECT_PLANE, unit->ObjectPlaneR);
 649       _mesa_TexGenfv(GL_Q, GL_OBJECT_PLANE, unit->ObjectPlaneQ);
 650       _mesa_TexGenfv(GL_S, GL_EYE_PLANE, unit->EyePlaneS);
 651       _mesa_TexGenfv(GL_T, GL_EYE_PLANE, unit->EyePlaneT);
 652       _mesa_TexGenfv(GL_R, GL_EYE_PLANE, unit->EyePlaneR);
 653       _mesa_TexGenfv(GL_Q, GL_EYE_PLANE, unit->EyePlaneQ);
 654       if (ctx->Extensions.EXT_texture_lod_bias) {
 655          _mesa_TexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT,
 656                        GL_TEXTURE_LOD_BIAS_EXT, unit->LodBias);
 657       }
 658       if (ctx->Extensions.EXT_texture_env_combine ||
 659           ctx->Extensions.ARB_texture_env_combine) {
 660          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_EXT,
 661                        unit->CombineModeRGB);
 662          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_EXT,
 663                        unit->CombineModeA);
 664          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_EXT,
 665                        unit->CombineSourceRGB[0]);
 666          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_EXT,
 667                        unit->CombineSourceRGB[1]);
 668          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB_EXT,
 669                        unit->CombineSourceRGB[2]);
 670          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_EXT,
 671                        unit->CombineSourceA[0]);
 672          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_EXT,
 673                        unit->CombineSourceA[1]);
 674          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA_EXT,
 675                        unit->CombineSourceA[2]);
 676          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_EXT,
 677                        unit->CombineOperandRGB[0]);
 678          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_EXT,
 679                        unit->CombineOperandRGB[1]);
 680          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB_EXT,
 681                        unit->CombineOperandRGB[2]);
 682          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_EXT,
 683                        unit->CombineOperandA[0]);
 684          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_EXT,
 685                        unit->CombineOperandA[1]);
 686          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA_EXT,
 687                        unit->CombineOperandA[2]);
 688          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_EXT,
 689                        1 << unit->CombineScaleShiftRGB);
 690          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE,
 691                        1 << unit->CombineScaleShiftA);
 692       }
 693
 694       /* Restore texture object state */
 695       numObjs = ctx->Extensions.ARB_texture_cube_map ? 4 : 3;
 696
 697       for (i = 0; i < numObjs; i++) {
 698          GLenum target = 0;
 699          const struct gl_texture_object *obj = NULL;
 700          GLfloat bordColor[4];
 701
 702          switch (i) {
 703          case 0:
 704             target = GL_TEXTURE_1D;
 705             obj = &unit->Saved1D;
 706             break;
 707          case 1:
 708             target = GL_TEXTURE_2D;
 709             obj = &unit->Saved2D;
 710             break;
 711          case 2:
 712             target = GL_TEXTURE_3D;
 713             obj = &unit->Saved3D;
 714             break;
 715          case 3:
 716             target = GL_TEXTURE_CUBE_MAP_ARB;
 717             obj = &unit->SavedCubeMap;
 718             break;
 719          default:
 720             ; /* silence warnings */
 721          }
 722
 723          _mesa_BindTexture(target, obj->Name);
 724
 725          bordColor[0] = CHAN_TO_FLOAT(obj->BorderColor[0]);
 726          bordColor[1] = CHAN_TO_FLOAT(obj->BorderColor[1]);
 727          bordColor[2] = CHAN_TO_FLOAT(obj->BorderColor[2]);
 728          bordColor[3] = CHAN_TO_FLOAT(obj->BorderColor[3]);
 729
 730          _mesa_TexParameterf(target, GL_TEXTURE_PRIORITY, obj->Priority);
 731          _mesa_TexParameterfv(target, GL_TEXTURE_BORDER_COLOR, bordColor);
 732          _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, obj->WrapS);
 733          _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, obj->WrapT);
 734          _mesa_TexParameteri(target, GL_TEXTURE_WRAP_R, obj->WrapR);
 735          _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, obj->MinFilter);
 736          _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, obj->MagFilter);
 737          _mesa_TexParameterf(target, GL_TEXTURE_MIN_LOD, obj->MinLod);
 738          _mesa_TexParameterf(target, GL_TEXTURE_MAX_LOD, obj->MaxLod);
 739          _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, obj->BaseLevel);
 740          _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, obj->MaxLevel);
 741          if (ctx->Extensions.EXT_texture_filter_anisotropic) {
 742             _mesa_TexParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT,
 743                                 obj->MaxAnisotropy);
 744          }
 745          if (ctx->Extensions.SGIX_shadow) {
 746             _mesa_TexParameteri(target, GL_TEXTURE_COMPARE_SGIX,
 747                                 obj->CompareFlag);
 748             _mesa_TexParameteri(target, GL_TEXTURE_COMPARE_OPERATOR_SGIX,
 749                                 obj->CompareOperator);
 750          }
 751          if (ctx->Extensions.SGIX_shadow_ambient) {
 752             _mesa_TexParameterf(target, GL_SHADOW_AMBIENT_SGIX,
 753                                 CHAN_TO_FLOAT(obj->ShadowAmbient));
 754          }
 755
 756       }
 757    }
 758    _mesa_ActiveTextureARB(GL_TEXTURE0_ARB
 759                           + texAttrib->CurrentUnit);
 760
 761    /* "un-bump" the texture object reference counts.  We did that so they
 762     * wouldn't inadvertantly get deleted while they were still referenced
 763     * inside the attribute state stack.
 764     */
 765    for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 766       ctx->Texture.Unit[u].Current1D->RefCount--;
 767       ctx->Texture.Unit[u].Current2D->RefCount--;
 768       ctx->Texture.Unit[u].Current3D->RefCount--;
 769       ctx->Texture.Unit[u].CurrentCubeMap->RefCount--;
 770    }
 771 }
 772
 773
 774 /*
 775  * This function is kind of long just because we have to call a lot
 776  * of device driver functions to update device driver state.
 777  *
 778  * XXX As it is now, most of the pop-code calls immediate-mode Mesa functions
 779  * in order to restore GL state.  This isn't terribly efficient but it
 780  * ensures that dirty flags and any derived state gets updated correctly.
 781  * We could at least check if the value to restore equals the current value
 782  * and then skip the Mesa call.
 783  */
 784 void
 785 _mesa_PopAttrib(void)
 786 {
 787    struct gl_attrib_node *attr, *next;
 788    GET_CURRENT_CONTEXT(ctx);
 789    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 790
 791    if (ctx->AttribStackDepth == 0) {
 792       _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopAttrib" );
 793       return;
 794    }
 795
 796    ctx->AttribStackDepth--;
 797    attr = ctx->AttribStack[ctx->AttribStackDepth];
 798
 799    while (attr) {
 800
 801       if (MESA_VERBOSE&VERBOSE_API) {
 802          fprintf(stderr, "glPopAttrib %s\n",
 803                  _mesa_lookup_enum_by_nr(attr->kind));
 804       }
 805
 806       switch (attr->kind) {
 807          case GL_ACCUM_BUFFER_BIT:
 808             {
 809                const struct gl_accum_attrib *accum;
 810                accum = (const struct gl_accum_attrib *) attr->data;
 811                _mesa_ClearAccum(accum->ClearColor[0],
 812                                 accum->ClearColor[1],
 813                                 accum->ClearColor[2],
 814                                 accum->ClearColor[3]);
 815             }
 816             break;
 817          case GL_COLOR_BUFFER_BIT:
 818             {
 819                const struct gl_colorbuffer_attrib *color;
 820                color = (const struct gl_colorbuffer_attrib *) attr->data;
 821                _mesa_ClearIndex((GLfloat) color->ClearIndex);
 822                _mesa_ClearColor(CHAN_TO_FLOAT(color->ClearColor[0]),
 823                                 CHAN_TO_FLOAT(color->ClearColor[1]),
 824                                 CHAN_TO_FLOAT(color->ClearColor[2]),
 825                                 CHAN_TO_FLOAT(color->ClearColor[3]));
 826                _mesa_IndexMask(color->IndexMask);
 827                _mesa_ColorMask((GLboolean) (color->ColorMask[0] != 0),
 828                                (GLboolean) (color->ColorMask[1] != 0),
 829                                (GLboolean) (color->ColorMask[2] != 0),
 830                                (GLboolean) (color->ColorMask[3] != 0));
 831                _mesa_DrawBuffer(color->DrawBuffer);
 832                _mesa_set_enable(ctx, GL_ALPHA_TEST, color->AlphaEnabled);
 833                _mesa_AlphaFunc(color->AlphaFunc,
 834                                CHAN_TO_FLOAT(color->AlphaRef));
 835                _mesa_set_enable(ctx, GL_BLEND, color->BlendEnabled);
 836                _mesa_BlendFuncSeparateEXT(color->BlendSrcRGB,
 837                                           color->BlendDstRGB,
 838                                           color->BlendSrcA,
 839                                           color->BlendDstA);
 840                _mesa_BlendEquation(color->BlendEquation);
 841                _mesa_BlendColor(color->BlendColor[0],
 842                                 color->BlendColor[1],
 843                                 color->BlendColor[2],
 844                                 color->BlendColor[3]);
 845                _mesa_LogicOp(color->LogicOp);
 846                _mesa_set_enable(ctx, GL_COLOR_LOGIC_OP,
 847                                 color->ColorLogicOpEnabled);
 848                _mesa_set_enable(ctx, GL_INDEX_LOGIC_OP,
 849                                 color->IndexLogicOpEnabled);
 850                _mesa_set_enable(ctx, GL_DITHER, color->DitherFlag);
 851             }
 852             break;
 853          case GL_CURRENT_BIT:
 854             FLUSH_CURRENT( ctx, 0 );
 855             MEMCPY( &ctx->Current, attr->data,
 856                     sizeof(struct gl_current_attrib) );
 857             break;
 858          case GL_DEPTH_BUFFER_BIT:
 859             {
 860                const struct gl_depthbuffer_attrib *depth;
 861                depth = (const struct gl_depthbuffer_attrib *) attr->data;
 862                _mesa_DepthFunc(depth->Func);
 863                _mesa_ClearDepth(depth->Clear);
 864                _mesa_set_enable(ctx, GL_DEPTH_TEST, depth->Test);
 865                _mesa_DepthMask(depth->Mask);
 866                if (ctx->Extensions.HP_occlusion_test)
 867                   _mesa_set_enable(ctx, GL_OCCLUSION_TEST_HP,
 868                                    depth->OcclusionTest);
 869             }
 870             break;
 871          case GL_ENABLE_BIT:
 872             {
 873                const struct gl_enable_attrib *enable;
 874                enable = (const struct gl_enable_attrib *) attr->data;
 875                pop_enable_group(ctx, enable);
 876                ctx->NewState |= _NEW_ALL;
 877             }
 878             break;
 879          case GL_EVAL_BIT:
 880             MEMCPY( &ctx->Eval, attr->data, sizeof(struct gl_eval_attrib) );
 881             ctx->NewState |= _NEW_EVAL;
 882             break;
 883          case GL_FOG_BIT:
 884             {
 885                const struct gl_fog_attrib *fog;
 886                fog = (const struct gl_fog_attrib *) attr->data;
 887                _mesa_set_enable(ctx, GL_FOG, fog->Enabled);
 888                _mesa_Fogfv(GL_FOG_COLOR, fog->Color);
 889                _mesa_Fogf(GL_FOG_DENSITY, fog->Density);
 890                _mesa_Fogf(GL_FOG_START, fog->Start);
 891                _mesa_Fogf(GL_FOG_END, fog->End);
 892                _mesa_Fogf(GL_FOG_INDEX, fog->Index);
 893                _mesa_Fogi(GL_FOG_MODE, fog->Mode);
 894             }
 895             break;
 896          case GL_HINT_BIT:
 897             {
 898                const struct gl_hint_attrib *hint;
 899                hint = (const struct gl_hint_attrib *) attr->data;
 900                _mesa_Hint(GL_PERSPECTIVE_CORRECTION_HINT,
 901                           hint->PerspectiveCorrection );
 902                _mesa_Hint(GL_POINT_SMOOTH_HINT, hint->PointSmooth);
 903                _mesa_Hint(GL_LINE_SMOOTH_HINT, hint->LineSmooth);
 904                _mesa_Hint(GL_POLYGON_SMOOTH_HINT, hint->PolygonSmooth);
 905                _mesa_Hint(GL_FOG_HINT, hint->Fog);
 906                _mesa_Hint(GL_CLIP_VOLUME_CLIPPING_HINT_EXT,
 907                           hint->ClipVolumeClipping);
 908                if (ctx->Extensions.ARB_texture_compression)
 909                   _mesa_Hint(GL_TEXTURE_COMPRESSION_HINT_ARB,
 910                              hint->TextureCompression);
 911             }
 912             break;
 913          case GL_LIGHTING_BIT:
 914             {
 915                GLuint i;
 916                const struct gl_light_attrib *light;
 917                light = (const struct gl_light_attrib *) attr->data;
 918                /* lighting enable */
 919                _mesa_set_enable(ctx, GL_LIGHTING, light->Enabled);
 920                /* per-light state */
 921
 922                if (ctx->ModelviewMatrixStack.Top->flags & MAT_DIRTY_INVERSE)
 923                   _math_matrix_analyse( ctx->ModelviewMatrixStack.Top );
 924
 925                for (i = 0; i < MAX_LIGHTS; i++) {
 926                   GLenum lgt = (GLenum) (GL_LIGHT0 + i);
 927                   const struct gl_light *l = &light->Light[i];
 928                   GLfloat tmp[4];
 929                   _mesa_set_enable(ctx, lgt, l->Enabled);
 930                   _mesa_Lightfv( lgt, GL_AMBIENT, l->Ambient );
 931                   _mesa_Lightfv( lgt, GL_DIFFUSE, l->Diffuse );
 932                   _mesa_Lightfv( lgt, GL_SPECULAR, l->Specular );
 933                   TRANSFORM_POINT( tmp, ctx->ModelviewMatrixStack.Top->inv, l->EyePosition );
 934                   _mesa_Lightfv( lgt, GL_POSITION, tmp );
 935                   TRANSFORM_POINT( tmp, ctx->ModelviewMatrixStack.Top->m, l->EyeDirection );
 936                   _mesa_Lightfv( lgt, GL_SPOT_DIRECTION, tmp );
 937                   _mesa_Lightfv( lgt, GL_SPOT_EXPONENT, &l->SpotExponent );
 938                   _mesa_Lightfv( lgt, GL_SPOT_CUTOFF, &l->SpotCutoff );
 939                   _mesa_Lightfv( lgt, GL_CONSTANT_ATTENUATION,
 940                                  &l->ConstantAttenuation );
 941                   _mesa_Lightfv( lgt, GL_LINEAR_ATTENUATION,
 942                                  &l->LinearAttenuation );
 943                   _mesa_Lightfv( lgt, GL_QUADRATIC_ATTENUATION,
 944                                  &l->QuadraticAttenuation );
 945                }
 946                /* light model */
 947                _mesa_LightModelfv(GL_LIGHT_MODEL_AMBIENT,
 948                                   light->Model.Ambient);
 949                _mesa_LightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER,
 950                                  (GLfloat) light->Model.LocalViewer);
 951                _mesa_LightModelf(GL_LIGHT_MODEL_TWO_SIDE,
 952                                  (GLfloat) light->Model.TwoSide);
 953                _mesa_LightModelf(GL_LIGHT_MODEL_COLOR_CONTROL,
 954                                  (GLfloat) light->Model.ColorControl);
 955                /* materials */
 956                MEMCPY(ctx->Light.Material, light->Material,
 957                       2 * sizeof(struct gl_material));
 958                /* shade model */
 959                _mesa_ShadeModel(light->ShadeModel);
 960                /* color material */
 961                _mesa_ColorMaterial(light->ColorMaterialFace,
 962                                    light->ColorMaterialMode);
 963                _mesa_set_enable(ctx, GL_COLOR_MATERIAL,
 964                                 light->ColorMaterialEnabled);
 965             }
 966             break;
 967          case GL_LINE_BIT:
 968             {
 969                const struct gl_line_attrib *line;
 970                line = (const struct gl_line_attrib *) attr->data;
 971                _mesa_set_enable(ctx, GL_LINE_SMOOTH, line->SmoothFlag);
 972                _mesa_set_enable(ctx, GL_LINE_STIPPLE, line->StippleFlag);
 973                _mesa_LineStipple(line->StippleFactor, line->StipplePattern);
 974                _mesa_LineWidth(line->Width);
 975             }
 976             break;
 977          case GL_LIST_BIT:
 978             MEMCPY( &ctx->List, attr->data, sizeof(struct gl_list_attrib) );
 979             break;
 980          case GL_PIXEL_MODE_BIT:
 981             MEMCPY( &ctx->Pixel, attr->data, sizeof(struct gl_pixel_attrib) );
 982             ctx->NewState |= _NEW_PIXEL;
 983             break;
 984          case GL_POINT_BIT:
 985             {
 986                const struct gl_point_attrib *point;
 987                point = (const struct gl_point_attrib *) attr->data;
 988                _mesa_PointSize(point->Size);
 989                _mesa_set_enable(ctx, GL_POINT_SMOOTH, point->SmoothFlag);
 990                _mesa_PointParameterfvEXT(GL_DISTANCE_ATTENUATION_EXT,
 991                                          point->Params);
 992                _mesa_PointParameterfEXT(GL_POINT_SIZE_MIN_EXT, point->MinSize);
 993                _mesa_PointParameterfEXT(GL_POINT_SIZE_MAX_EXT, point->MaxSize);
 994                _mesa_PointParameterfEXT(GL_POINT_FADE_THRESHOLD_SIZE_EXT,
 995                                         point->Threshold);
 996             }
 997             break;
 998          case GL_POLYGON_BIT:
 999             {
1000                const struct gl_polygon_attrib *polygon;
1001                polygon = (const struct gl_polygon_attrib *) attr->data;
1002                _mesa_CullFace(polygon->CullFaceMode);
1003                _mesa_FrontFace(polygon->FrontFace);
1004                _mesa_PolygonMode(GL_FRONT, polygon->FrontMode);
1005                _mesa_PolygonMode(GL_BACK, polygon->BackMode);
1006                _mesa_PolygonOffset(polygon->OffsetFactor,
1007                                    polygon->OffsetUnits);
1008                _mesa_set_enable(ctx, GL_POLYGON_SMOOTH, polygon->SmoothFlag);
1009                _mesa_set_enable(ctx, GL_POLYGON_STIPPLE, polygon->StippleFlag);
1010                _mesa_set_enable(ctx, GL_CULL_FACE, polygon->CullFlag);
1011                _mesa_set_enable(ctx, GL_POLYGON_OFFSET_POINT,
1012                                 polygon->OffsetPoint);
1013                _mesa_set_enable(ctx, GL_POLYGON_OFFSET_LINE,
1014                                 polygon->OffsetLine);
1015                _mesa_set_enable(ctx, GL_POLYGON_OFFSET_FILL,
1016                                 polygon->OffsetFill);
1017             }
1018             break;
1019          case GL_POLYGON_STIPPLE_BIT:
1020             MEMCPY( ctx->PolygonStipple, attr->data, 32*sizeof(GLuint) );
1021             ctx->NewState |= _NEW_POLYGONSTIPPLE;
1022             if (ctx->Driver.PolygonStipple)
1023                ctx->Driver.PolygonStipple( ctx, (const GLubyte *) attr->data );
1024             break;
1025          case GL_SCISSOR_BIT:
1026             {
1027                const struct gl_scissor_attrib *scissor;
1028                scissor = (const struct gl_scissor_attrib *) attr->data;
1029                _mesa_Scissor(scissor->X, scissor->Y,
1030                              scissor->Width, scissor->Height);
1031                _mesa_set_enable(ctx, GL_SCISSOR_TEST, scissor->Enabled);
1032             }
1033             break;
1034          case GL_STENCIL_BUFFER_BIT:
1035             {
1036                const struct gl_stencil_attrib *stencil;
1037                stencil = (const struct gl_stencil_attrib *) attr->data;
1038                _mesa_set_enable(ctx, GL_STENCIL_TEST, stencil->Enabled);
1039                _mesa_ClearStencil(stencil->Clear);
1040                _mesa_StencilFunc(stencil->Function, stencil->Ref,
1041                                  stencil->ValueMask);
1042                _mesa_StencilMask(stencil->WriteMask);
1043                _mesa_StencilOp(stencil->FailFunc, stencil->ZFailFunc,
1044                                stencil->ZPassFunc);
1045             }
1046             break;
1047          case GL_TRANSFORM_BIT:
1048             {
1049                GLuint i;
1050                const struct gl_transform_attrib *xform;
1051                xform = (const struct gl_transform_attrib *) attr->data;
1052                _mesa_MatrixMode(xform->MatrixMode);
1053                for (i = 0; i < MAX_CLIP_PLANES; i++) {
1054                   GLdouble equation[4];
1055                   const GLfloat *eq = xform->EyeUserPlane[i];
1056                   _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i,
1057                                    xform->ClipEnabled[i]);
1058                   equation[0] = (GLdouble) eq[0];
1059                   equation[1] = (GLdouble) eq[1];
1060                   equation[2] = (GLdouble) eq[2];
1061                   equation[3] = (GLdouble) eq[3];
1062                   _mesa_ClipPlane( GL_CLIP_PLANE0 + i, equation );
1063                }
1064                /* normalize/rescale */
1065                _mesa_set_enable(ctx, GL_NORMALIZE, ctx->Transform.Normalize);
1066                _mesa_set_enable(ctx, GL_RESCALE_NORMAL_EXT,
1067                                 ctx->Transform.RescaleNormals);
1068             }
1069             break;
1070          case GL_TEXTURE_BIT:
1071             /* Take care of texture object reference counters */
1072             {
1073                const struct gl_texture_attrib *texture;
1074                texture = (const struct gl_texture_attrib *) attr->data;
1075                pop_texture_group(ctx, texture);
1076                ctx->NewState |= _NEW_TEXTURE;
1077             }
1078             break;
1079          case GL_VIEWPORT_BIT:
1080             {
1081                const struct gl_viewport_attrib *vp;
1082                vp = (const struct gl_viewport_attrib *) attr->data;
1083                _mesa_Viewport(vp->X, vp->Y, vp->Width, vp->Height);
1084                _mesa_DepthRange(vp->Near, vp->Far);
1085             }
1086             break;
1087          case GL_MULTISAMPLE_BIT_ARB:
1088             {
1089                const struct gl_multisample_attrib *ms;
1090                ms = (const struct gl_multisample_attrib *) attr->data;
1091                _mesa_SampleCoverageARB(ms->SampleCoverageValue,
1092                                        ms->SampleCoverageInvert);
1093             }
1094             break;
1095
1096          default:
1097             _mesa_problem( ctx, "Bad attrib flag in PopAttrib");
1098             break;
1099       }
1100
1101       next = attr->next;
1102       FREE( attr->data );
1103       FREE( attr );
1104       attr = next;
1105    }
1106 }
1107
1108
1109 #define GL_CLIENT_PACK_BIT (1<<20)
1110 #define GL_CLIENT_UNPACK_BIT (1<<21)
1111
1112
1113 void
1114 _mesa_PushClientAttrib(GLbitfield mask)
1115 {
1116    struct gl_attrib_node *newnode;
1117    struct gl_attrib_node *head;
1118
1119    GET_CURRENT_CONTEXT(ctx);
1120    ASSERT_OUTSIDE_BEGIN_END(ctx);
1121
1122    if (ctx->ClientAttribStackDepth >= MAX_CLIENT_ATTRIB_STACK_DEPTH) {
1123       _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushClientAttrib" );
1124       return;
1125    }
1126
1127    /* Build linked list of attribute nodes which save all attribute */
1128    /* groups specified by the mask. */
1129    head = NULL;
1130
1131    if (mask & GL_CLIENT_PIXEL_STORE_BIT) {
1132       struct gl_pixelstore_attrib *attr;
1133       /* packing attribs */
1134       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
1135       MEMCPY( attr, &ctx->Pack, sizeof(struct gl_pixelstore_attrib) );
1136       newnode = new_attrib_node( GL_CLIENT_PACK_BIT );
1137       newnode->data = attr;
1138       newnode->next = head;
1139       head = newnode;
1140       /* unpacking attribs */
1141       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
1142       MEMCPY( attr, &ctx->Unpack, sizeof(struct gl_pixelstore_attrib) );
1143       newnode = new_attrib_node( GL_CLIENT_UNPACK_BIT );
1144       newnode->data = attr;
1145       newnode->next = head;
1146       head = newnode;
1147    }
1148    if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) {
1149       struct gl_array_attrib *attr;
1150       attr = MALLOC_STRUCT( gl_array_attrib );
1151       MEMCPY( attr, &ctx->Array, sizeof(struct gl_array_attrib) );
1152       newnode = new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT );
1153       newnode->data = attr;
1154       newnode->next = head;
1155       head = newnode;
1156    }
1157
1158    ctx->ClientAttribStack[ctx->ClientAttribStackDepth] = head;
1159    ctx->ClientAttribStackDepth++;
1160 }
1161
1162
1163
1164
1165 void
1166 _mesa_PopClientAttrib(void)
1167 {
1168    struct gl_attrib_node *attr, *next;
1169
1170    GET_CURRENT_CONTEXT(ctx);
1171    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1172
1173    if (ctx->ClientAttribStackDepth == 0) {
1174       _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopClientAttrib" );
1175       return;
1176    }
1177
1178    ctx->ClientAttribStackDepth--;
1179    attr = ctx->ClientAttribStack[ctx->ClientAttribStackDepth];
1180
1181    while (attr) {
1182       switch (attr->kind) {
1183          case GL_CLIENT_PACK_BIT:
1184             MEMCPY( &ctx->Pack, attr->data,
1185                     sizeof(struct gl_pixelstore_attrib) );
1186             ctx->NewState |= _NEW_PACKUNPACK;
1187             break;
1188          case GL_CLIENT_UNPACK_BIT:
1189             MEMCPY( &ctx->Unpack, attr->data,
1190                     sizeof(struct gl_pixelstore_attrib) );
1191             ctx->NewState |= _NEW_PACKUNPACK;
1192             break;
1193          case GL_CLIENT_VERTEX_ARRAY_BIT:
1194             MEMCPY( &ctx->Array, attr->data,
1195                     sizeof(struct gl_array_attrib) );
1196             ctx->NewState |= _NEW_ARRAY;
1197             break;
1198          default:
1199             _mesa_problem( ctx, "Bad attrib flag in PopClientAttrib");
1200             break;
1201       }
1202
1203       next = attr->next;
1204       FREE( attr->data );
1205       FREE( attr );
1206       attr = next;
1207    }
1208 }