src/mesa/main/attrib.c

   1 /* $Id: attrib.c,v 1.58 2001/12/14 02:50:01 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
  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 #endif
  56
  57
  58
  59
  60 /*
  61  * Allocate a new attribute state node.  These nodes have a
  62  * "kind" value and a pointer to a struct of state data.
  63  */
  64 static struct gl_attrib_node *
  65 new_attrib_node( GLbitfield kind )
  66 {
  67    struct gl_attrib_node *an = MALLOC_STRUCT(gl_attrib_node);
  68    if (an) {
  69       an->kind = kind;
  70    }
  71    return an;
  72 }
  73
  74
  75
  76 /*
  77  * Copy texture object state from one texture object to another.
  78  */
  79 static void
  80 copy_texobj_state( struct gl_texture_object *dest,
  81                    const struct gl_texture_object *src )
  82 {
  83    dest->Name = src->Name;
  84    /*
  85    dest->Dimensions = src->Dimensions;
  86    */
  87    dest->Priority = src->Priority;
  88    dest->BorderColor[0] = src->BorderColor[0];
  89    dest->BorderColor[1] = src->BorderColor[1];
  90    dest->BorderColor[2] = src->BorderColor[2];
  91    dest->BorderColor[3] = src->BorderColor[3];
  92    dest->WrapS = src->WrapS;
  93    dest->WrapT = src->WrapT;
  94    dest->WrapR = src->WrapR;
  95    dest->MinFilter = src->MinFilter;
  96    dest->MagFilter = src->MagFilter;
  97    dest->MinLod = src->MinLod;
  98    dest->MaxLod = src->MaxLod;
  99    dest->BaseLevel = src->BaseLevel;
 100    dest->MaxLevel = src->MaxLevel;
 101    dest->MaxAnisotropy = src->MaxAnisotropy;
 102    dest->CompareFlag = src->CompareFlag;
 103    dest->CompareOperator = src->CompareOperator;
 104    dest->ShadowAmbient = src->ShadowAmbient;
 105    dest->_MaxLevel = src->_MaxLevel;
 106    dest->_MaxLambda = src->_MaxLambda;
 107    dest->Palette = src->Palette;
 108    dest->Complete = src->Complete;
 109 }
 110
 111
 112
 113 void
 114 _mesa_PushAttrib(GLbitfield mask)
 115 {
 116    struct gl_attrib_node *newnode;
 117    struct gl_attrib_node *head;
 118
 119    GET_CURRENT_CONTEXT(ctx);
 120    ASSERT_OUTSIDE_BEGIN_END(ctx);
 121
 122    if (MESA_VERBOSE&VERBOSE_API)
 123       fprintf(stderr, "glPushAttrib %x\n", (int)mask);
 124
 125    if (ctx->AttribStackDepth >= MAX_ATTRIB_STACK_DEPTH) {
 126       _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushAttrib" );
 127       return;
 128    }
 129
 130    /* Build linked list of attribute nodes which save all attribute */
 131    /* groups specified by the mask. */
 132    head = NULL;
 133
 134    if (mask & GL_ACCUM_BUFFER_BIT) {
 135       struct gl_accum_attrib *attr;
 136       attr = MALLOC_STRUCT( gl_accum_attrib );
 137       MEMCPY( attr, &ctx->Accum, sizeof(struct gl_accum_attrib) );
 138       newnode = new_attrib_node( GL_ACCUM_BUFFER_BIT );
 139       newnode->data = attr;
 140       newnode->next = head;
 141       head = newnode;
 142    }
 143
 144    if (mask & GL_COLOR_BUFFER_BIT) {
 145       struct gl_colorbuffer_attrib *attr;
 146       attr = MALLOC_STRUCT( gl_colorbuffer_attrib );
 147       MEMCPY( attr, &ctx->Color, sizeof(struct gl_colorbuffer_attrib) );
 148       newnode = new_attrib_node( GL_COLOR_BUFFER_BIT );
 149       newnode->data = attr;
 150       newnode->next = head;
 151       head = newnode;
 152    }
 153
 154    if (mask & GL_CURRENT_BIT) {
 155       struct gl_current_attrib *attr;
 156       FLUSH_CURRENT( ctx, 0 );
 157       attr = MALLOC_STRUCT( gl_current_attrib );
 158       MEMCPY( attr, &ctx->Current, sizeof(struct gl_current_attrib) );
 159       newnode = new_attrib_node( GL_CURRENT_BIT );
 160       newnode->data = attr;
 161       newnode->next = head;
 162       head = newnode;
 163    }
 164
 165    if (mask & GL_DEPTH_BUFFER_BIT) {
 166       struct gl_depthbuffer_attrib *attr;
 167       attr = MALLOC_STRUCT( gl_depthbuffer_attrib );
 168       MEMCPY( attr, &ctx->Depth, sizeof(struct gl_depthbuffer_attrib) );
 169       newnode = new_attrib_node( GL_DEPTH_BUFFER_BIT );
 170       newnode->data = attr;
 171       newnode->next = head;
 172       head = newnode;
 173    }
 174
 175    if (mask & GL_ENABLE_BIT) {
 176       struct gl_enable_attrib *attr;
 177       GLuint i;
 178       attr = MALLOC_STRUCT( gl_enable_attrib );
 179       /* Copy enable flags from all other attributes into the enable struct. */
 180       attr->AlphaTest = ctx->Color.AlphaEnabled;
 181       attr->AutoNormal = ctx->Eval.AutoNormal;
 182       attr->Blend = ctx->Color.BlendEnabled;
 183       for (i=0;i<MAX_CLIP_PLANES;i++) {
 184          attr->ClipPlane[i] = ctx->Transform.ClipEnabled[i];
 185       }
 186       attr->ColorMaterial = ctx->Light.ColorMaterialEnabled;
 187       attr->Convolution1D = ctx->Pixel.Convolution1DEnabled;
 188       attr->Convolution2D = ctx->Pixel.Convolution2DEnabled;
 189       attr->Separable2D = ctx->Pixel.Separable2DEnabled;
 190       attr->CullFace = ctx->Polygon.CullFlag;
 191       attr->DepthTest = ctx->Depth.Test;
 192       attr->Dither = ctx->Color.DitherFlag;
 193       attr->Fog = ctx->Fog.Enabled;
 194       for (i=0;i<MAX_LIGHTS;i++) {
 195          attr->Light[i] = ctx->Light.Light[i].Enabled;
 196       }
 197       attr->Lighting = ctx->Light.Enabled;
 198       attr->LineSmooth = ctx->Line.SmoothFlag;
 199       attr->LineStipple = ctx->Line.StippleFlag;
 200       attr->Histogram = ctx->Pixel.HistogramEnabled;
 201       attr->MinMax = ctx->Pixel.MinMaxEnabled;
 202       attr->IndexLogicOp = ctx->Color.IndexLogicOpEnabled;
 203       attr->ColorLogicOp = ctx->Color.ColorLogicOpEnabled;
 204       attr->Map1Color4 = ctx->Eval.Map1Color4;
 205       attr->Map1Index = ctx->Eval.Map1Index;
 206       attr->Map1Normal = ctx->Eval.Map1Normal;
 207       attr->Map1TextureCoord1 = ctx->Eval.Map1TextureCoord1;
 208       attr->Map1TextureCoord2 = ctx->Eval.Map1TextureCoord2;
 209       attr->Map1TextureCoord3 = ctx->Eval.Map1TextureCoord3;
 210       attr->Map1TextureCoord4 = ctx->Eval.Map1TextureCoord4;
 211       attr->Map1Vertex3 = ctx->Eval.Map1Vertex3;
 212       attr->Map1Vertex4 = ctx->Eval.Map1Vertex4;
 213       attr->Map2Color4 = ctx->Eval.Map2Color4;
 214       attr->Map2Index = ctx->Eval.Map2Index;
 215       attr->Map2Normal = ctx->Eval.Map2Normal;
 216       attr->Map2TextureCoord1 = ctx->Eval.Map2TextureCoord1;
 217       attr->Map2TextureCoord2 = ctx->Eval.Map2TextureCoord2;
 218       attr->Map2TextureCoord3 = ctx->Eval.Map2TextureCoord3;
 219       attr->Map2TextureCoord4 = ctx->Eval.Map2TextureCoord4;
 220       attr->Map2Vertex3 = ctx->Eval.Map2Vertex3;
 221       attr->Map2Vertex4 = ctx->Eval.Map2Vertex4;
 222       attr->Normalize = ctx->Transform.Normalize;
 223       attr->RasterPositionUnclipped = ctx->Transform.RasterPositionUnclipped;
 224       attr->PixelTexture = ctx->Pixel.PixelTextureEnabled;
 225       attr->PointSmooth = ctx->Point.SmoothFlag;
 226       attr->PolygonOffsetPoint = ctx->Polygon.OffsetPoint;
 227       attr->PolygonOffsetLine = ctx->Polygon.OffsetLine;
 228       attr->PolygonOffsetFill = ctx->Polygon.OffsetFill;
 229       attr->PolygonSmooth = ctx->Polygon.SmoothFlag;
 230       attr->PolygonStipple = ctx->Polygon.StippleFlag;
 231       attr->RescaleNormals = ctx->Transform.RescaleNormals;
 232       attr->Scissor = ctx->Scissor.Enabled;
 233       attr->Stencil = ctx->Stencil.Enabled;
 234       attr->MultisampleEnabled = ctx->Multisample.Enabled;
 235       attr->SampleAlphaToCoverage = ctx->Multisample.SampleAlphaToCoverage;
 236       attr->SampleAlphaToOne = ctx->Multisample.SampleAlphaToOne;
 237       attr->SampleCoverage = ctx->Multisample.SampleCoverage;
 238       attr->SampleCoverageInvert = ctx->Multisample.SampleCoverageInvert;
 239       for (i=0; i<MAX_TEXTURE_UNITS; i++) {
 240          attr->Texture[i] = ctx->Texture.Unit[i].Enabled;
 241          attr->TexGen[i] = ctx->Texture.Unit[i].TexGenEnabled;
 242       }
 243       /* GL_NV_vertex_program */
 244       attr->VertexProgram = ctx->VertexProgram.Enabled;
 245       attr->VertexProgramPointSize = ctx->VertexProgram.PointSizeEnabled;
 246       attr->VertexProgramTwoSide = ctx->VertexProgram.TwoSideEnabled;
 247       newnode = new_attrib_node( GL_ENABLE_BIT );
 248       newnode->data = attr;
 249       newnode->next = head;
 250       head = newnode;
 251    }
 252
 253    if (mask & GL_EVAL_BIT) {
 254       struct gl_eval_attrib *attr;
 255       attr = MALLOC_STRUCT( gl_eval_attrib );
 256       MEMCPY( attr, &ctx->Eval, sizeof(struct gl_eval_attrib) );
 257       newnode = new_attrib_node( GL_EVAL_BIT );
 258       newnode->data = attr;
 259       newnode->next = head;
 260       head = newnode;
 261    }
 262
 263    if (mask & GL_FOG_BIT) {
 264       struct gl_fog_attrib *attr;
 265       attr = MALLOC_STRUCT( gl_fog_attrib );
 266       MEMCPY( attr, &ctx->Fog, sizeof(struct gl_fog_attrib) );
 267       newnode = new_attrib_node( GL_FOG_BIT );
 268       newnode->data = attr;
 269       newnode->next = head;
 270       head = newnode;
 271    }
 272
 273    if (mask & GL_HINT_BIT) {
 274       struct gl_hint_attrib *attr;
 275       attr = MALLOC_STRUCT( gl_hint_attrib );
 276       MEMCPY( attr, &ctx->Hint, sizeof(struct gl_hint_attrib) );
 277       newnode = new_attrib_node( GL_HINT_BIT );
 278       newnode->data = attr;
 279       newnode->next = head;
 280       head = newnode;
 281    }
 282
 283    if (mask & GL_LIGHTING_BIT) {
 284       struct gl_light_attrib *attr;
 285       FLUSH_CURRENT(ctx, 0);    /* flush material changes */
 286       attr = MALLOC_STRUCT( gl_light_attrib );
 287       MEMCPY( attr, &ctx->Light, sizeof(struct gl_light_attrib) );
 288       newnode = new_attrib_node( GL_LIGHTING_BIT );
 289       newnode->data = attr;
 290       newnode->next = head;
 291       head = newnode;
 292    }
 293
 294    if (mask & GL_LINE_BIT) {
 295       struct gl_line_attrib *attr;
 296       attr = MALLOC_STRUCT( gl_line_attrib );
 297       MEMCPY( attr, &ctx->Line, sizeof(struct gl_line_attrib) );
 298       newnode = new_attrib_node( GL_LINE_BIT );
 299       newnode->data = attr;
 300       newnode->next = head;
 301       head = newnode;
 302    }
 303
 304    if (mask & GL_LIST_BIT) {
 305       struct gl_list_attrib *attr;
 306       attr = MALLOC_STRUCT( gl_list_attrib );
 307       MEMCPY( attr, &ctx->List, sizeof(struct gl_list_attrib) );
 308       newnode = new_attrib_node( GL_LIST_BIT );
 309       newnode->data = attr;
 310       newnode->next = head;
 311       head = newnode;
 312    }
 313
 314    if (mask & GL_PIXEL_MODE_BIT) {
 315       struct gl_pixel_attrib *attr;
 316       attr = MALLOC_STRUCT( gl_pixel_attrib );
 317       MEMCPY( attr, &ctx->Pixel, sizeof(struct gl_pixel_attrib) );
 318       newnode = new_attrib_node( GL_PIXEL_MODE_BIT );
 319       newnode->data = attr;
 320       newnode->next = head;
 321       head = newnode;
 322    }
 323
 324    if (mask & GL_POINT_BIT) {
 325       struct gl_point_attrib *attr;
 326       attr = MALLOC_STRUCT( gl_point_attrib );
 327       MEMCPY( attr, &ctx->Point, sizeof(struct gl_point_attrib) );
 328       newnode = new_attrib_node( GL_POINT_BIT );
 329       newnode->data = attr;
 330       newnode->next = head;
 331       head = newnode;
 332    }
 333
 334    if (mask & GL_POLYGON_BIT) {
 335       struct gl_polygon_attrib *attr;
 336       attr = MALLOC_STRUCT( gl_polygon_attrib );
 337       MEMCPY( attr, &ctx->Polygon, sizeof(struct gl_polygon_attrib) );
 338       newnode = new_attrib_node( GL_POLYGON_BIT );
 339       newnode->data = attr;
 340       newnode->next = head;
 341       head = newnode;
 342    }
 343
 344    if (mask & GL_POLYGON_STIPPLE_BIT) {
 345       GLuint *stipple;
 346       stipple = (GLuint *) MALLOC( 32*sizeof(GLuint) );
 347       MEMCPY( stipple, ctx->PolygonStipple, 32*sizeof(GLuint) );
 348       newnode = new_attrib_node( GL_POLYGON_STIPPLE_BIT );
 349       newnode->data = stipple;
 350       newnode->next = head;
 351       head = newnode;
 352    }
 353
 354    if (mask & GL_SCISSOR_BIT) {
 355       struct gl_scissor_attrib *attr;
 356       attr = MALLOC_STRUCT( gl_scissor_attrib );
 357       MEMCPY( attr, &ctx->Scissor, sizeof(struct gl_scissor_attrib) );
 358       newnode = new_attrib_node( GL_SCISSOR_BIT );
 359       newnode->data = attr;
 360       newnode->next = head;
 361       head = newnode;
 362    }
 363
 364    if (mask & GL_STENCIL_BUFFER_BIT) {
 365       struct gl_stencil_attrib *attr;
 366       attr = MALLOC_STRUCT( gl_stencil_attrib );
 367       MEMCPY( attr, &ctx->Stencil, sizeof(struct gl_stencil_attrib) );
 368       newnode = new_attrib_node( GL_STENCIL_BUFFER_BIT );
 369       newnode->data = attr;
 370       newnode->next = head;
 371       head = newnode;
 372    }
 373
 374    if (mask & GL_TEXTURE_BIT) {
 375       struct gl_texture_attrib *attr;
 376       GLuint u;
 377       /* Bump the texture object reference counts so that they don't
 378        * inadvertantly get deleted.
 379        */
 380       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 381          ctx->Texture.Unit[u].Current1D->RefCount++;
 382          ctx->Texture.Unit[u].Current2D->RefCount++;
 383          ctx->Texture.Unit[u].Current3D->RefCount++;
 384          ctx->Texture.Unit[u].CurrentCubeMap->RefCount++;
 385       }
 386       attr = MALLOC_STRUCT( gl_texture_attrib );
 387       MEMCPY( attr, &ctx->Texture, sizeof(struct gl_texture_attrib) );
 388       /* copy state of the currently bound texture objects */
 389       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 390          copy_texobj_state(&attr->Unit[u].Saved1D, attr->Unit[u].Current1D);
 391          copy_texobj_state(&attr->Unit[u].Saved2D, attr->Unit[u].Current2D);
 392          copy_texobj_state(&attr->Unit[u].Saved3D, attr->Unit[u].Current3D);
 393          copy_texobj_state(&attr->Unit[u].SavedCubeMap, attr->Unit[u].CurrentCubeMap);
 394       }
 395       newnode = new_attrib_node( GL_TEXTURE_BIT );
 396       newnode->data = attr;
 397       newnode->next = head;
 398       head = newnode;
 399    }
 400
 401    if (mask & GL_TRANSFORM_BIT) {
 402       struct gl_transform_attrib *attr;
 403       attr = MALLOC_STRUCT( gl_transform_attrib );
 404       MEMCPY( attr, &ctx->Transform, sizeof(struct gl_transform_attrib) );
 405       newnode = new_attrib_node( GL_TRANSFORM_BIT );
 406       newnode->data = attr;
 407       newnode->next = head;
 408       head = newnode;
 409    }
 410
 411    if (mask & GL_VIEWPORT_BIT) {
 412       struct gl_viewport_attrib *attr;
 413       attr = MALLOC_STRUCT( gl_viewport_attrib );
 414       MEMCPY( attr, &ctx->Viewport, sizeof(struct gl_viewport_attrib) );
 415       newnode = new_attrib_node( GL_VIEWPORT_BIT );
 416       newnode->data = attr;
 417       newnode->next = head;
 418       head = newnode;
 419    }
 420
 421    /* GL_ARB_multisample */
 422    if (mask & GL_MULTISAMPLE_BIT_ARB) {
 423       struct gl_multisample_attrib *attr;
 424       attr = MALLOC_STRUCT( gl_multisample_attrib );
 425       MEMCPY( attr, &ctx->Multisample, sizeof(struct gl_multisample_attrib) );
 426       newnode = new_attrib_node( GL_MULTISAMPLE_BIT_ARB );
 427       newnode->data = attr;
 428       newnode->next = head;
 429       head = newnode;
 430    }
 431
 432    ctx->AttribStack[ctx->AttribStackDepth] = head;
 433    ctx->AttribStackDepth++;
 434 }
 435
 436
 437
 438 static void
 439 pop_enable_group(GLcontext *ctx, const struct gl_enable_attrib *enable)
 440 {
 441    GLuint i;
 442
 443 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM)          \
 444         if ((VALUE) != (NEWVALUE)) {                    \
 445            _mesa_set_enable( ctx, ENUM, (NEWVALUE) );   \
 446         }
 447
 448    TEST_AND_UPDATE(ctx->Color.AlphaEnabled, enable->AlphaTest, GL_ALPHA_TEST);
 449    TEST_AND_UPDATE(ctx->Color.BlendEnabled, enable->Blend, GL_BLEND);
 450
 451    for (i=0;i<MAX_CLIP_PLANES;i++) {
 452       if (ctx->Transform.ClipEnabled[i] != enable->ClipPlane[i])
 453          _mesa_set_enable(ctx, (GLenum) (GL_CLIP_PLANE0 + i),
 454                           enable->ClipPlane[i]);
 455    }
 456
 457    TEST_AND_UPDATE(ctx->Light.ColorMaterialEnabled, enable->ColorMaterial,
 458                    GL_COLOR_MATERIAL);
 459    TEST_AND_UPDATE(ctx->Polygon.CullFlag, enable->CullFace, GL_CULL_FACE);
 460    TEST_AND_UPDATE(ctx->Depth.Test, enable->DepthTest, GL_DEPTH_TEST);
 461    TEST_AND_UPDATE(ctx->Color.DitherFlag, enable->Dither, GL_DITHER);
 462    TEST_AND_UPDATE(ctx->Pixel.Convolution1DEnabled, enable->Convolution1D,
 463                    GL_CONVOLUTION_1D);
 464    TEST_AND_UPDATE(ctx->Pixel.Convolution2DEnabled, enable->Convolution2D,
 465                    GL_CONVOLUTION_2D);
 466    TEST_AND_UPDATE(ctx->Pixel.Separable2DEnabled, enable->Separable2D,
 467                    GL_SEPARABLE_2D);
 468    TEST_AND_UPDATE(ctx->Fog.Enabled, enable->Fog, GL_FOG);
 469    TEST_AND_UPDATE(ctx->Light.Enabled, enable->Lighting, GL_LIGHTING);
 470    TEST_AND_UPDATE(ctx->Line.SmoothFlag, enable->LineSmooth, GL_LINE_SMOOTH);
 471    TEST_AND_UPDATE(ctx->Line.StippleFlag, enable->LineStipple,
 472                    GL_LINE_STIPPLE);
 473    TEST_AND_UPDATE(ctx->Color.IndexLogicOpEnabled, enable->IndexLogicOp,
 474                    GL_INDEX_LOGIC_OP);
 475    TEST_AND_UPDATE(ctx->Color.ColorLogicOpEnabled, enable->ColorLogicOp,
 476                    GL_COLOR_LOGIC_OP);
 477    TEST_AND_UPDATE(ctx->Eval.Map1Color4, enable->Map1Color4, GL_MAP1_COLOR_4);
 478    TEST_AND_UPDATE(ctx->Eval.Map1Index, enable->Map1Index, GL_MAP1_INDEX);
 479    TEST_AND_UPDATE(ctx->Eval.Map1Normal, enable->Map1Normal, GL_MAP1_NORMAL);
 480    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord1, enable->Map1TextureCoord1,
 481                    GL_MAP1_TEXTURE_COORD_1);
 482    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord2, enable->Map1TextureCoord2,
 483                    GL_MAP1_TEXTURE_COORD_2);
 484    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord3, enable->Map1TextureCoord3,
 485                    GL_MAP1_TEXTURE_COORD_3);
 486    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord4, enable->Map1TextureCoord4,
 487                    GL_MAP1_TEXTURE_COORD_4);
 488    TEST_AND_UPDATE(ctx->Eval.Map1Vertex3, enable->Map1Vertex3,
 489                    GL_MAP1_VERTEX_3);
 490    TEST_AND_UPDATE(ctx->Eval.Map1Vertex4, enable->Map1Vertex4,
 491                    GL_MAP1_VERTEX_4);
 492    TEST_AND_UPDATE(ctx->Eval.Map2Color4, enable->Map2Color4, GL_MAP2_COLOR_4);
 493    TEST_AND_UPDATE(ctx->Eval.Map2Index, enable->Map2Index, GL_MAP2_INDEX);
 494    TEST_AND_UPDATE(ctx->Eval.Map2Normal, enable->Map2Normal, GL_MAP2_NORMAL);
 495    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord1, enable->Map2TextureCoord1,
 496                    GL_MAP2_TEXTURE_COORD_1);
 497    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord2, enable->Map2TextureCoord2,
 498                    GL_MAP2_TEXTURE_COORD_2);
 499    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord3, enable->Map2TextureCoord3,
 500                    GL_MAP2_TEXTURE_COORD_3);
 501    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord4, enable->Map2TextureCoord4,
 502                    GL_MAP2_TEXTURE_COORD_4);
 503    TEST_AND_UPDATE(ctx->Eval.Map2Vertex3, enable->Map2Vertex3,
 504                    GL_MAP2_VERTEX_3);
 505    TEST_AND_UPDATE(ctx->Eval.Map2Vertex4, enable->Map2Vertex4,
 506                    GL_MAP2_VERTEX_4);
 507    TEST_AND_UPDATE(ctx->Eval.AutoNormal, enable->AutoNormal, GL_AUTO_NORMAL);
 508    TEST_AND_UPDATE(ctx->Transform.Normalize, enable->Normalize, GL_NORMALIZE);
 509    TEST_AND_UPDATE(ctx->Transform.RescaleNormals, enable->RescaleNormals,
 510                    GL_RESCALE_NORMAL_EXT);
 511    TEST_AND_UPDATE(ctx->Transform.RasterPositionUnclipped,
 512                    enable->RasterPositionUnclipped,
 513                    GL_RASTER_POSITION_UNCLIPPED_IBM);
 514    TEST_AND_UPDATE(ctx->Pixel.PixelTextureEnabled, enable->PixelTexture,
 515                    GL_POINT_SMOOTH);
 516    TEST_AND_UPDATE(ctx->Point.SmoothFlag, enable->PointSmooth,
 517                    GL_POINT_SMOOTH);
 518    TEST_AND_UPDATE(ctx->Polygon.OffsetPoint, enable->PolygonOffsetPoint,
 519                    GL_POLYGON_OFFSET_POINT);
 520    TEST_AND_UPDATE(ctx->Polygon.OffsetLine, enable->PolygonOffsetLine,
 521                    GL_POLYGON_OFFSET_LINE);
 522    TEST_AND_UPDATE(ctx->Polygon.OffsetFill, enable->PolygonOffsetFill,
 523                    GL_POLYGON_OFFSET_FILL);
 524    TEST_AND_UPDATE(ctx->Polygon.SmoothFlag, enable->PolygonSmooth,
 525                    GL_POLYGON_SMOOTH);
 526    TEST_AND_UPDATE(ctx->Polygon.StippleFlag, enable->PolygonStipple,
 527                    GL_POLYGON_STIPPLE);
 528    TEST_AND_UPDATE(ctx->Scissor.Enabled, enable->Scissor, GL_SCISSOR_TEST);
 529    TEST_AND_UPDATE(ctx->Stencil.Enabled, enable->Stencil, GL_STENCIL_TEST);
 530    TEST_AND_UPDATE(ctx->Multisample.Enabled, enable->MultisampleEnabled,
 531                    GL_MULTISAMPLE_ARB);
 532    TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToCoverage,
 533                    enable->SampleAlphaToCoverage,
 534                    GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);
 535    TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToOne,
 536                    enable->SampleAlphaToOne,
 537                    GL_SAMPLE_ALPHA_TO_ONE_ARB);
 538    TEST_AND_UPDATE(ctx->Multisample.SampleCoverage,
 539                    enable->SampleCoverage,
 540                    GL_SAMPLE_COVERAGE_ARB);
 541    TEST_AND_UPDATE(ctx->Multisample.SampleCoverageInvert,
 542                    enable->SampleCoverageInvert,
 543                    GL_SAMPLE_COVERAGE_INVERT_ARB);
 544    /* GL_NV_vertex_program */
 545    TEST_AND_UPDATE(ctx->VertexProgram.Enabled,
 546                    enable->VertexProgram,
 547                    GL_VERTEX_PROGRAM_NV);
 548    TEST_AND_UPDATE(ctx->VertexProgram.PointSizeEnabled,
 549                    enable->VertexProgramPointSize,
 550                    GL_VERTEX_PROGRAM_POINT_SIZE_NV);
 551    TEST_AND_UPDATE(ctx->VertexProgram.TwoSideEnabled,
 552                    enable->VertexProgramTwoSide,
 553                    GL_VERTEX_PROGRAM_TWO_SIDE_NV);
 554
 555 #undef TEST_AND_UPDATE
 556
 557    /* texture unit enables */
 558    for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
 559       if (ctx->Texture.Unit[i].Enabled != enable->Texture[i]) {
 560          ctx->Texture.Unit[i].Enabled = enable->Texture[i];
 561          if (ctx->Driver.Enable) {
 562             if (ctx->Driver.ActiveTexture) {
 563                (*ctx->Driver.ActiveTexture)(ctx, i);
 564             }
 565             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_1D,
 566                              (GLboolean) (enable->Texture[i] & TEXTURE0_1D) );
 567             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_2D,
 568                              (GLboolean) (enable->Texture[i] & TEXTURE0_2D) );
 569             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_3D,
 570                              (GLboolean) (enable->Texture[i] & TEXTURE0_3D) );
 571          }
 572       }
 573
 574       if (ctx->Texture.Unit[i].TexGenEnabled != enable->TexGen[i]) {
 575          ctx->Texture.Unit[i].TexGenEnabled = enable->TexGen[i];
 576          if (ctx->Driver.Enable) {
 577             if (ctx->Driver.ActiveTexture) {
 578                (*ctx->Driver.ActiveTexture)(ctx, i);
 579             }
 580             if (enable->TexGen[i] & S_BIT)
 581                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_TRUE);
 582             else
 583                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_FALSE);
 584             if (enable->TexGen[i] & T_BIT)
 585                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_TRUE);
 586             else
 587                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_FALSE);
 588             if (enable->TexGen[i] & R_BIT)
 589                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_TRUE);
 590             else
 591                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_FALSE);
 592             if (enable->TexGen[i] & Q_BIT)
 593                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_TRUE);
 594             else
 595                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_FALSE);
 596          }
 597       }
 598    }
 599
 600    if (ctx->Driver.ActiveTexture) {
 601       (*ctx->Driver.ActiveTexture)(ctx, ctx->Texture.CurrentUnit);
 602    }
 603 }
 604
 605
 606 static void
 607 pop_texture_group(GLcontext *ctx, const struct gl_texture_attrib *texAttrib)
 608 {
 609    GLuint u;
 610
 611    for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 612       const struct gl_texture_unit *unit = &texAttrib->Unit[u];
 613       GLuint numObjs, i;
 614
 615       _mesa_ActiveTextureARB(GL_TEXTURE0_ARB + u);
 616       _mesa_set_enable(ctx, GL_TEXTURE_1D,
 617               (GLboolean) (unit->Enabled & TEXTURE0_1D ? GL_TRUE : GL_FALSE));
 618       _mesa_set_enable(ctx, GL_TEXTURE_2D,
 619               (GLboolean) (unit->Enabled & TEXTURE0_2D ? GL_TRUE : GL_FALSE));
 620       _mesa_set_enable(ctx, GL_TEXTURE_3D,
 621               (GLboolean) (unit->Enabled & TEXTURE0_3D ? GL_TRUE : GL_FALSE));
 622       if (ctx->Extensions.ARB_texture_cube_map) {
 623          _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP_ARB,
 624              (GLboolean) (unit->Enabled & TEXTURE0_CUBE ? GL_TRUE : GL_FALSE));
 625       }
 626       _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, unit->EnvMode);
 627       _mesa_TexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, unit->EnvColor);
 628       _mesa_TexGeni(GL_S, GL_TEXTURE_GEN_MODE, unit->GenModeS);
 629       _mesa_TexGeni(GL_T, GL_TEXTURE_GEN_MODE, unit->GenModeT);
 630       _mesa_TexGeni(GL_R, GL_TEXTURE_GEN_MODE, unit->GenModeR);
 631       _mesa_TexGeni(GL_Q, GL_TEXTURE_GEN_MODE, unit->GenModeQ);
 632       _mesa_TexGenfv(GL_S, GL_OBJECT_PLANE, unit->ObjectPlaneS);
 633       _mesa_TexGenfv(GL_T, GL_OBJECT_PLANE, unit->ObjectPlaneT);
 634       _mesa_TexGenfv(GL_R, GL_OBJECT_PLANE, unit->ObjectPlaneR);
 635       _mesa_TexGenfv(GL_Q, GL_OBJECT_PLANE, unit->ObjectPlaneQ);
 636       _mesa_TexGenfv(GL_S, GL_EYE_PLANE, unit->EyePlaneS);
 637       _mesa_TexGenfv(GL_T, GL_EYE_PLANE, unit->EyePlaneT);
 638       _mesa_TexGenfv(GL_R, GL_EYE_PLANE, unit->EyePlaneR);
 639       _mesa_TexGenfv(GL_Q, GL_EYE_PLANE, unit->EyePlaneQ);
 640       if (ctx->Extensions.EXT_texture_lod_bias) {
 641          _mesa_TexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT,
 642                        GL_TEXTURE_LOD_BIAS_EXT, unit->LodBias);
 643       }
 644       if (ctx->Extensions.EXT_texture_env_combine ||
 645           ctx->Extensions.ARB_texture_env_combine) {
 646          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_EXT,
 647                        unit->CombineModeRGB);
 648          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_EXT,
 649                        unit->CombineModeA);
 650          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_EXT,
 651                        unit->CombineSourceRGB[0]);
 652          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_EXT,
 653                        unit->CombineSourceRGB[1]);
 654          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB_EXT,
 655                        unit->CombineSourceRGB[2]);
 656          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_EXT,
 657                        unit->CombineSourceA[0]);
 658          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_EXT,
 659                        unit->CombineSourceA[1]);
 660          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA_EXT,
 661                        unit->CombineSourceA[2]);
 662          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_EXT,
 663                        unit->CombineOperandRGB[0]);
 664          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_EXT,
 665                        unit->CombineOperandRGB[1]);
 666          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB_EXT,
 667                        unit->CombineOperandRGB[2]);
 668          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_EXT,
 669                        unit->CombineOperandA[0]);
 670          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_EXT,
 671                        unit->CombineOperandA[1]);
 672          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA_EXT,
 673                        unit->CombineOperandA[2]);
 674          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_EXT,
 675                        1 << unit->CombineScaleShiftRGB);
 676          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE,
 677                        1 << unit->CombineScaleShiftA);
 678       }
 679
 680       /* Restore texture object state */
 681       numObjs = ctx->Extensions.ARB_texture_cube_map ? 4 : 3;
 682
 683       for (i = 0; i < numObjs; i++) {
 684          GLenum target = 0;
 685          const struct gl_texture_object *obj = NULL;
 686          GLfloat bordColor[4];
 687
 688          switch (i) {
 689          case 0:
 690             target = GL_TEXTURE_1D;
 691             obj = &unit->Saved1D;
 692             break;
 693          case 1:
 694             target = GL_TEXTURE_2D;
 695             obj = &unit->Saved2D;
 696             break;
 697          case 2:
 698             target = GL_TEXTURE_3D;
 699             obj = &unit->Saved3D;
 700             break;
 701          case 3:
 702             target = GL_TEXTURE_CUBE_MAP_ARB;
 703             obj = &unit->SavedCubeMap;
 704             break;
 705          default:
 706             ; /* silence warnings */
 707          }
 708
 709          _mesa_BindTexture(target, obj->Name);
 710
 711          bordColor[0] = CHAN_TO_FLOAT(obj->BorderColor[0]);
 712          bordColor[1] = CHAN_TO_FLOAT(obj->BorderColor[1]);
 713          bordColor[2] = CHAN_TO_FLOAT(obj->BorderColor[2]);
 714          bordColor[3] = CHAN_TO_FLOAT(obj->BorderColor[3]);
 715
 716          _mesa_TexParameterf(target, GL_TEXTURE_PRIORITY, obj->Priority);
 717          _mesa_TexParameterfv(target, GL_TEXTURE_BORDER_COLOR, bordColor);
 718          _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, obj->WrapS);
 719          _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, obj->WrapT);
 720          _mesa_TexParameteri(target, GL_TEXTURE_WRAP_R, obj->WrapR);
 721          _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, obj->MinFilter);
 722          _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, obj->MagFilter);
 723          _mesa_TexParameterf(target, GL_TEXTURE_MIN_LOD, obj->MinLod);
 724          _mesa_TexParameterf(target, GL_TEXTURE_MAX_LOD, obj->MaxLod);
 725          _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, obj->BaseLevel);
 726          _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, obj->MaxLevel);
 727          if (ctx->Extensions.EXT_texture_filter_anisotropic) {
 728             _mesa_TexParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT,
 729                                 obj->MaxAnisotropy);
 730          }
 731          if (ctx->Extensions.SGIX_shadow) {
 732             _mesa_TexParameteri(target, GL_TEXTURE_COMPARE_SGIX,
 733                                 obj->CompareFlag);
 734             _mesa_TexParameteri(target, GL_TEXTURE_COMPARE_OPERATOR_SGIX,
 735                                 obj->CompareOperator);
 736          }
 737          if (ctx->Extensions.SGIX_shadow_ambient) {
 738             _mesa_TexParameterf(target, GL_SHADOW_AMBIENT_SGIX,
 739                                 CHAN_TO_FLOAT(obj->ShadowAmbient));
 740          }
 741
 742       }
 743    }
 744    _mesa_ActiveTextureARB(GL_TEXTURE0_ARB
 745                           + texAttrib->CurrentUnit);
 746
 747    /* "un-bump" the texture object reference counts.  We did that so they
 748     * wouldn't inadvertantly get deleted while they were still referenced
 749     * inside the attribute state stack.
 750     */
 751    for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 752       ctx->Texture.Unit[u].Current1D->RefCount--;
 753       ctx->Texture.Unit[u].Current2D->RefCount--;
 754       ctx->Texture.Unit[u].Current3D->RefCount--;
 755       ctx->Texture.Unit[u].CurrentCubeMap->RefCount--;
 756    }
 757 }
 758
 759
 760 /*
 761  * This function is kind of long just because we have to call a lot
 762  * of device driver functions to update device driver state.
 763  *
 764  * XXX As it is now, most of the pop-code calls immediate-mode Mesa functions
 765  * in order to restore GL state.  This isn't terribly efficient but it
 766  * ensures that dirty flags and any derived state gets updated correctly.
 767  * We could at least check if the value to restore equals the current value
 768  * and then skip the Mesa call.
 769  */
 770 void
 771 _mesa_PopAttrib(void)
 772 {
 773    struct gl_attrib_node *attr, *next;
 774    GET_CURRENT_CONTEXT(ctx);
 775    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 776
 777    if (ctx->AttribStackDepth == 0) {
 778       _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopAttrib" );
 779       return;
 780    }
 781
 782    ctx->AttribStackDepth--;
 783    attr = ctx->AttribStack[ctx->AttribStackDepth];
 784
 785    while (attr) {
 786
 787       if (MESA_VERBOSE&VERBOSE_API) {
 788          fprintf(stderr, "glPopAttrib %s\n",
 789                  _mesa_lookup_enum_by_nr(attr->kind));
 790       }
 791
 792       switch (attr->kind) {
 793          case GL_ACCUM_BUFFER_BIT:
 794             {
 795                const struct gl_accum_attrib *accum;
 796                accum = (const struct gl_accum_attrib *) attr->data;
 797                _mesa_ClearAccum(accum->ClearColor[0],
 798                                 accum->ClearColor[1],
 799                                 accum->ClearColor[2],
 800                                 accum->ClearColor[3]);
 801             }
 802             break;
 803          case GL_COLOR_BUFFER_BIT:
 804             {
 805                const struct gl_colorbuffer_attrib *color;
 806                color = (const struct gl_colorbuffer_attrib *) attr->data;
 807                _mesa_ClearIndex((GLfloat) color->ClearIndex);
 808                _mesa_ClearColor(CHAN_TO_FLOAT(color->ClearColor[0]),
 809                                 CHAN_TO_FLOAT(color->ClearColor[1]),
 810                                 CHAN_TO_FLOAT(color->ClearColor[2]),
 811                                 CHAN_TO_FLOAT(color->ClearColor[3]));
 812                _mesa_IndexMask(color->IndexMask);
 813                _mesa_ColorMask((GLboolean) (color->ColorMask[0] != 0),
 814                                (GLboolean) (color->ColorMask[1] != 0),
 815                                (GLboolean) (color->ColorMask[2] != 0),
 816                                (GLboolean) (color->ColorMask[3] != 0));
 817                _mesa_DrawBuffer(color->DrawBuffer);
 818                _mesa_set_enable(ctx, GL_ALPHA_TEST, color->AlphaEnabled);
 819                _mesa_AlphaFunc(color->AlphaFunc,
 820                                CHAN_TO_FLOAT(color->AlphaRef));
 821                _mesa_set_enable(ctx, GL_BLEND, color->BlendEnabled);
 822                _mesa_BlendFuncSeparateEXT(color->BlendSrcRGB,
 823                                           color->BlendDstRGB,
 824                                           color->BlendSrcA,
 825                                           color->BlendDstA);
 826                _mesa_BlendEquation(color->BlendEquation);
 827                _mesa_BlendColor(color->BlendColor[0],
 828                                 color->BlendColor[1],
 829                                 color->BlendColor[2],
 830                                 color->BlendColor[3]);
 831                _mesa_LogicOp(color->LogicOp);
 832                _mesa_set_enable(ctx, GL_COLOR_LOGIC_OP,
 833                                 color->ColorLogicOpEnabled);
 834                _mesa_set_enable(ctx, GL_INDEX_LOGIC_OP,
 835                                 color->IndexLogicOpEnabled);
 836                _mesa_set_enable(ctx, GL_DITHER, color->DitherFlag);
 837             }
 838             break;
 839          case GL_CURRENT_BIT:
 840             FLUSH_CURRENT( ctx, 0 );
 841             MEMCPY( &ctx->Current, attr->data,
 842                     sizeof(struct gl_current_attrib) );
 843             break;
 844          case GL_DEPTH_BUFFER_BIT:
 845             {
 846                const struct gl_depthbuffer_attrib *depth;
 847                depth = (const struct gl_depthbuffer_attrib *) attr->data;
 848                _mesa_DepthFunc(depth->Func);
 849                _mesa_ClearDepth(depth->Clear);
 850                _mesa_set_enable(ctx, GL_DEPTH_TEST, depth->Test);
 851                _mesa_DepthMask(depth->Mask);
 852                if (ctx->Extensions.HP_occlusion_test)
 853                   _mesa_set_enable(ctx, GL_OCCLUSION_TEST_HP,
 854                                    depth->OcclusionTest);
 855             }
 856             break;
 857          case GL_ENABLE_BIT:
 858             {
 859                const struct gl_enable_attrib *enable;
 860                enable = (const struct gl_enable_attrib *) attr->data;
 861                pop_enable_group(ctx, enable);
 862                ctx->NewState |= _NEW_ALL;
 863             }
 864             break;
 865          case GL_EVAL_BIT:
 866             MEMCPY( &ctx->Eval, attr->data, sizeof(struct gl_eval_attrib) );
 867             ctx->NewState |= _NEW_EVAL;
 868             break;
 869          case GL_FOG_BIT:
 870             {
 871                const struct gl_fog_attrib *fog;
 872                fog = (const struct gl_fog_attrib *) attr->data;
 873                _mesa_set_enable(ctx, GL_FOG, fog->Enabled);
 874                _mesa_Fogfv(GL_FOG_COLOR, fog->Color);
 875                _mesa_Fogf(GL_FOG_DENSITY, fog->Density);
 876                _mesa_Fogf(GL_FOG_START, fog->Start);
 877                _mesa_Fogf(GL_FOG_END, fog->End);
 878                _mesa_Fogf(GL_FOG_INDEX, fog->Index);
 879                _mesa_Fogi(GL_FOG_MODE, fog->Mode);
 880             }
 881             break;
 882          case GL_HINT_BIT:
 883             {
 884                const struct gl_hint_attrib *hint;
 885                hint = (const struct gl_hint_attrib *) attr->data;
 886                _mesa_Hint(GL_PERSPECTIVE_CORRECTION_HINT,
 887                           hint->PerspectiveCorrection );
 888                _mesa_Hint(GL_POINT_SMOOTH_HINT, hint->PointSmooth);
 889                _mesa_Hint(GL_LINE_SMOOTH_HINT, hint->LineSmooth);
 890                _mesa_Hint(GL_POLYGON_SMOOTH_HINT, hint->PolygonSmooth);
 891                _mesa_Hint(GL_FOG_HINT, hint->Fog);
 892                _mesa_Hint(GL_CLIP_VOLUME_CLIPPING_HINT_EXT,
 893                           hint->ClipVolumeClipping);
 894                if (ctx->Extensions.ARB_texture_compression)
 895                   _mesa_Hint(GL_TEXTURE_COMPRESSION_HINT_ARB,
 896                              hint->TextureCompression);
 897             }
 898             break;
 899          case GL_LIGHTING_BIT:
 900             {
 901                GLuint i;
 902                const struct gl_light_attrib *light;
 903                light = (const struct gl_light_attrib *) attr->data;
 904                /* lighting enable */
 905                _mesa_set_enable(ctx, GL_LIGHTING, light->Enabled);
 906                /* per-light state */
 907                for (i = 0; i < MAX_LIGHTS; i++) {
 908                   GLenum lgt = (GLenum) (GL_LIGHT0 + i);
 909                   _mesa_set_enable(ctx, lgt, light->Light[i].Enabled);
 910                   MEMCPY(&ctx->Light.Light[i], &light->Light[i],
 911                          sizeof(struct gl_light));
 912                }
 913                /* light model */
 914                _mesa_LightModelfv(GL_LIGHT_MODEL_AMBIENT,
 915                                   light->Model.Ambient);
 916                _mesa_LightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER,
 917                                  (GLfloat) light->Model.LocalViewer);
 918                _mesa_LightModelf(GL_LIGHT_MODEL_TWO_SIDE,
 919                                  (GLfloat) light->Model.TwoSide);
 920                _mesa_LightModelf(GL_LIGHT_MODEL_COLOR_CONTROL,
 921                                  (GLfloat) light->Model.ColorControl);
 922                /* materials */
 923                MEMCPY(ctx->Light.Material, light->Material,
 924                       2 * sizeof(struct gl_material));
 925                /* shade model */
 926                _mesa_ShadeModel(light->ShadeModel);
 927                /* color material */
 928                _mesa_ColorMaterial(light->ColorMaterialFace,
 929                                    light->ColorMaterialMode);
 930                _mesa_set_enable(ctx, GL_COLOR_MATERIAL,
 931                                 light->ColorMaterialEnabled);
 932             }
 933             break;
 934          case GL_LINE_BIT:
 935             {
 936                const struct gl_line_attrib *line;
 937                line = (const struct gl_line_attrib *) attr->data;
 938                _mesa_set_enable(ctx, GL_LINE_SMOOTH, line->SmoothFlag);
 939                _mesa_set_enable(ctx, GL_LINE_STIPPLE, line->StippleFlag);
 940                _mesa_LineStipple(line->StippleFactor, line->StipplePattern);
 941                _mesa_LineWidth(line->Width);
 942             }
 943             break;
 944          case GL_LIST_BIT:
 945             MEMCPY( &ctx->List, attr->data, sizeof(struct gl_list_attrib) );
 946             break;
 947          case GL_PIXEL_MODE_BIT:
 948             MEMCPY( &ctx->Pixel, attr->data, sizeof(struct gl_pixel_attrib) );
 949             ctx->NewState |= _NEW_PIXEL;
 950             break;
 951          case GL_POINT_BIT:
 952             {
 953                const struct gl_point_attrib *point;
 954                point = (const struct gl_point_attrib *) attr->data;
 955                _mesa_PointSize(point->Size);
 956                _mesa_set_enable(ctx, GL_POINT_SMOOTH, point->SmoothFlag);
 957                _mesa_PointParameterfvEXT(GL_DISTANCE_ATTENUATION_EXT,
 958                                          point->Params);
 959                _mesa_PointParameterfEXT(GL_POINT_SIZE_MIN_EXT, point->MinSize);
 960                _mesa_PointParameterfEXT(GL_POINT_SIZE_MAX_EXT, point->MaxSize);
 961                _mesa_PointParameterfEXT(GL_POINT_FADE_THRESHOLD_SIZE_EXT,
 962                                         point->Threshold);
 963             }
 964             break;
 965          case GL_POLYGON_BIT:
 966             {
 967                const struct gl_polygon_attrib *polygon;
 968                polygon = (const struct gl_polygon_attrib *) attr->data;
 969                _mesa_CullFace(polygon->CullFaceMode);
 970                _mesa_FrontFace(polygon->FrontFace);
 971                _mesa_PolygonMode(GL_FRONT, polygon->FrontMode);
 972                _mesa_PolygonMode(GL_BACK, polygon->BackMode);
 973                _mesa_PolygonOffset(polygon->OffsetFactor,
 974                                    polygon->OffsetUnits);
 975                _mesa_set_enable(ctx, GL_POLYGON_SMOOTH, polygon->SmoothFlag);
 976                _mesa_set_enable(ctx, GL_POLYGON_STIPPLE, polygon->StippleFlag);
 977                _mesa_set_enable(ctx, GL_CULL_FACE, polygon->CullFlag);
 978                _mesa_set_enable(ctx, GL_POLYGON_OFFSET_POINT,
 979                                 polygon->OffsetPoint);
 980                _mesa_set_enable(ctx, GL_POLYGON_OFFSET_LINE,
 981                                 polygon->OffsetLine);
 982                _mesa_set_enable(ctx, GL_POLYGON_OFFSET_FILL,
 983                                 polygon->OffsetFill);
 984             }
 985             break;
 986          case GL_POLYGON_STIPPLE_BIT:
 987             MEMCPY( ctx->PolygonStipple, attr->data, 32*sizeof(GLuint) );
 988             ctx->NewState |= _NEW_POLYGONSTIPPLE;
 989             if (ctx->Driver.PolygonStipple)
 990                ctx->Driver.PolygonStipple( ctx, (const GLubyte *) attr->data );
 991             break;
 992          case GL_SCISSOR_BIT:
 993             {
 994                const struct gl_scissor_attrib *scissor;
 995                scissor = (const struct gl_scissor_attrib *) attr->data;
 996                _mesa_Scissor(scissor->X, scissor->Y,
 997                              scissor->Width, scissor->Height);
 998                _mesa_set_enable(ctx, GL_SCISSOR_TEST, scissor->Enabled);
 999             }
1000             break;
1001          case GL_STENCIL_BUFFER_BIT:
1002             {
1003                const struct gl_stencil_attrib *stencil;
1004                stencil = (const struct gl_stencil_attrib *) attr->data;
1005                _mesa_set_enable(ctx, GL_STENCIL_TEST, stencil->Enabled);
1006                _mesa_ClearStencil(stencil->Clear);
1007                _mesa_StencilFunc(stencil->Function, stencil->Ref,
1008                                  stencil->ValueMask);
1009                _mesa_StencilMask(stencil->WriteMask);
1010                _mesa_StencilOp(stencil->FailFunc, stencil->ZFailFunc,
1011                                stencil->ZPassFunc);
1012             }
1013             break;
1014          case GL_TRANSFORM_BIT:
1015             {
1016                GLuint i;
1017                const struct gl_transform_attrib *xform;
1018                xform = (const struct gl_transform_attrib *) attr->data;
1019                _mesa_MatrixMode(xform->MatrixMode);
1020                /* clip planes */
1021                MEMCPY(ctx->Transform.EyeUserPlane, xform->EyeUserPlane,
1022                       sizeof(xform->EyeUserPlane));
1023                MEMCPY(ctx->Transform._ClipUserPlane, xform->_ClipUserPlane,
1024                       sizeof(xform->EyeUserPlane));
1025                /* clip plane enable flags */
1026                for (i = 0; i < MAX_CLIP_PLANES; i++) {
1027                   _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i,
1028                                    xform->ClipEnabled[i]);
1029                }
1030                /* normalize/rescale */
1031                _mesa_set_enable(ctx, GL_NORMALIZE, ctx->Transform.Normalize);
1032                _mesa_set_enable(ctx, GL_RESCALE_NORMAL_EXT,
1033                                 ctx->Transform.RescaleNormals);
1034             }
1035             break;
1036          case GL_TEXTURE_BIT:
1037             /* Take care of texture object reference counters */
1038             {
1039                const struct gl_texture_attrib *texture;
1040                texture = (const struct gl_texture_attrib *) attr->data;
1041                pop_texture_group(ctx, texture);
1042                ctx->NewState |= _NEW_TEXTURE;
1043             }
1044             break;
1045          case GL_VIEWPORT_BIT:
1046             {
1047                const struct gl_viewport_attrib *vp;
1048                vp = (const struct gl_viewport_attrib *) attr->data;
1049                _mesa_Viewport(vp->X, vp->Y, vp->Width, vp->Height);
1050                _mesa_DepthRange(vp->Near, vp->Far);
1051             }
1052             break;
1053          case GL_MULTISAMPLE_BIT_ARB:
1054             {
1055                const struct gl_multisample_attrib *ms;
1056                ms = (const struct gl_multisample_attrib *) attr->data;
1057                _mesa_SampleCoverageARB(ms->SampleCoverageValue,
1058                                        ms->SampleCoverageInvert);
1059             }
1060             break;
1061
1062          default:
1063             _mesa_problem( ctx, "Bad attrib flag in PopAttrib");
1064             break;
1065       }
1066
1067       next = attr->next;
1068       FREE( attr->data );
1069       FREE( attr );
1070       attr = next;
1071    }
1072 }
1073
1074
1075 #define GL_CLIENT_PACK_BIT (1<<20)
1076 #define GL_CLIENT_UNPACK_BIT (1<<21)
1077
1078
1079 void
1080 _mesa_PushClientAttrib(GLbitfield mask)
1081 {
1082    struct gl_attrib_node *newnode;
1083    struct gl_attrib_node *head;
1084
1085    GET_CURRENT_CONTEXT(ctx);
1086    ASSERT_OUTSIDE_BEGIN_END(ctx);
1087
1088    if (ctx->ClientAttribStackDepth >= MAX_CLIENT_ATTRIB_STACK_DEPTH) {
1089       _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushClientAttrib" );
1090       return;
1091    }
1092
1093    /* Build linked list of attribute nodes which save all attribute */
1094    /* groups specified by the mask. */
1095    head = NULL;
1096
1097    if (mask & GL_CLIENT_PIXEL_STORE_BIT) {
1098       struct gl_pixelstore_attrib *attr;
1099       /* packing attribs */
1100       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
1101       MEMCPY( attr, &ctx->Pack, sizeof(struct gl_pixelstore_attrib) );
1102       newnode = new_attrib_node( GL_CLIENT_PACK_BIT );
1103       newnode->data = attr;
1104       newnode->next = head;
1105       head = newnode;
1106       /* unpacking attribs */
1107       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
1108       MEMCPY( attr, &ctx->Unpack, sizeof(struct gl_pixelstore_attrib) );
1109       newnode = new_attrib_node( GL_CLIENT_UNPACK_BIT );
1110       newnode->data = attr;
1111       newnode->next = head;
1112       head = newnode;
1113    }
1114    if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) {
1115       struct gl_array_attrib *attr;
1116       attr = MALLOC_STRUCT( gl_array_attrib );
1117       MEMCPY( attr, &ctx->Array, sizeof(struct gl_array_attrib) );
1118       newnode = new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT );
1119       newnode->data = attr;
1120       newnode->next = head;
1121       head = newnode;
1122    }
1123
1124    ctx->ClientAttribStack[ctx->ClientAttribStackDepth] = head;
1125    ctx->ClientAttribStackDepth++;
1126 }
1127
1128
1129
1130
1131 void
1132 _mesa_PopClientAttrib(void)
1133 {
1134    struct gl_attrib_node *attr, *next;
1135
1136    GET_CURRENT_CONTEXT(ctx);
1137    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1138
1139    if (ctx->ClientAttribStackDepth == 0) {
1140       _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopClientAttrib" );
1141       return;
1142    }
1143
1144    ctx->ClientAttribStackDepth--;
1145    attr = ctx->ClientAttribStack[ctx->ClientAttribStackDepth];
1146
1147    while (attr) {
1148       switch (attr->kind) {
1149          case GL_CLIENT_PACK_BIT:
1150             MEMCPY( &ctx->Pack, attr->data,
1151                     sizeof(struct gl_pixelstore_attrib) );
1152             ctx->NewState |= _NEW_PACKUNPACK;
1153             break;
1154          case GL_CLIENT_UNPACK_BIT:
1155             MEMCPY( &ctx->Unpack, attr->data,
1156                     sizeof(struct gl_pixelstore_attrib) );
1157             ctx->NewState |= _NEW_PACKUNPACK;
1158             break;
1159          case GL_CLIENT_VERTEX_ARRAY_BIT:
1160             MEMCPY( &ctx->Array, attr->data,
1161                     sizeof(struct gl_array_attrib) );
1162             ctx->NewState |= _NEW_ARRAY;
1163             break;
1164          default:
1165             _mesa_problem( ctx, "Bad attrib flag in PopClientAttrib");
1166             break;
1167       }
1168
1169       next = attr->next;
1170       FREE( attr->data );
1171       FREE( attr );
1172       attr = next;
1173    }
1174 }