src/mesa/main/attrib.c

   1 /* $Id: attrib.c,v 1.75 2002/10/24 23:57:19 brianp Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  4.1
   6  *
   7  * Copyright (C) 1999-2002  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 #include "glheader.h"
  28 #include "imports.h"
  29 #include "accum.h"
  30 #include "attrib.h"
  31 #include "blend.h"
  32 #include "buffers.h"
  33 #include "colormac.h"
  34 #include "context.h"
  35 #include "depth.h"
  36 #include "enable.h"
  37 #include "enums.h"
  38 #include "fog.h"
  39 #include "hint.h"
  40 #include "light.h"
  41 #include "lines.h"
  42 #include "matrix.h"
  43 #include "points.h"
  44 #include "polygon.h"
  45 #include "simple_list.h"
  46 #include "stencil.h"
  47 #include "texobj.h"
  48 #include "texstate.h"
  49 #include "mtypes.h"
  50 #include "math/m_xform.h"
  51
  52
  53 /*
  54  * Allocate a new attribute state node.  These nodes have a
  55  * "kind" value and a pointer to a struct of state data.
  56  */
  57 static struct gl_attrib_node *
  58 new_attrib_node( GLbitfield kind )
  59 {
  60    struct gl_attrib_node *an = MALLOC_STRUCT(gl_attrib_node);
  61    if (an) {
  62       an->kind = kind;
  63    }
  64    return an;
  65 }
  66
  67
  68 void
  69 _mesa_PushAttrib(GLbitfield mask)
  70 {
  71    struct gl_attrib_node *newnode;
  72    struct gl_attrib_node *head;
  73
  74    GET_CURRENT_CONTEXT(ctx);
  75    ASSERT_OUTSIDE_BEGIN_END(ctx);
  76
  77    if (MESA_VERBOSE & VERBOSE_API)
  78       _mesa_debug(ctx, "glPushAttrib %x\n", (int) mask);
  79
  80    if (ctx->AttribStackDepth >= MAX_ATTRIB_STACK_DEPTH) {
  81       _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushAttrib" );
  82       return;
  83    }
  84
  85    /* Build linked list of attribute nodes which save all attribute */
  86    /* groups specified by the mask. */
  87    head = NULL;
  88
  89    if (mask & GL_ACCUM_BUFFER_BIT) {
  90       struct gl_accum_attrib *attr;
  91       attr = MALLOC_STRUCT( gl_accum_attrib );
  92       MEMCPY( attr, &ctx->Accum, sizeof(struct gl_accum_attrib) );
  93       newnode = new_attrib_node( GL_ACCUM_BUFFER_BIT );
  94       newnode->data = attr;
  95       newnode->next = head;
  96       head = newnode;
  97    }
  98
  99    if (mask & GL_COLOR_BUFFER_BIT) {
 100       struct gl_colorbuffer_attrib *attr;
 101       attr = MALLOC_STRUCT( gl_colorbuffer_attrib );
 102       MEMCPY( attr, &ctx->Color, sizeof(struct gl_colorbuffer_attrib) );
 103       newnode = new_attrib_node( GL_COLOR_BUFFER_BIT );
 104       newnode->data = attr;
 105       newnode->next = head;
 106       head = newnode;
 107    }
 108
 109    if (mask & GL_CURRENT_BIT) {
 110       struct gl_current_attrib *attr;
 111       FLUSH_CURRENT( ctx, 0 );
 112       attr = MALLOC_STRUCT( gl_current_attrib );
 113       MEMCPY( attr, &ctx->Current, sizeof(struct gl_current_attrib) );
 114       newnode = new_attrib_node( GL_CURRENT_BIT );
 115       newnode->data = attr;
 116       newnode->next = head;
 117       head = newnode;
 118    }
 119
 120    if (mask & GL_DEPTH_BUFFER_BIT) {
 121       struct gl_depthbuffer_attrib *attr;
 122       attr = MALLOC_STRUCT( gl_depthbuffer_attrib );
 123       MEMCPY( attr, &ctx->Depth, sizeof(struct gl_depthbuffer_attrib) );
 124       newnode = new_attrib_node( GL_DEPTH_BUFFER_BIT );
 125       newnode->data = attr;
 126       newnode->next = head;
 127       head = newnode;
 128    }
 129
 130    if (mask & GL_ENABLE_BIT) {
 131       struct gl_enable_attrib *attr;
 132       GLuint i;
 133       attr = MALLOC_STRUCT( gl_enable_attrib );
 134       /* Copy enable flags from all other attributes into the enable struct. */
 135       attr->AlphaTest = ctx->Color.AlphaEnabled;
 136       attr->AutoNormal = ctx->Eval.AutoNormal;
 137       attr->Blend = ctx->Color.BlendEnabled;
 138       attr->ClipPlanes = ctx->Transform.ClipPlanesEnabled;
 139       attr->ColorMaterial = ctx->Light.ColorMaterialEnabled;
 140       attr->Convolution1D = ctx->Pixel.Convolution1DEnabled;
 141       attr->Convolution2D = ctx->Pixel.Convolution2DEnabled;
 142       attr->Separable2D = ctx->Pixel.Separable2DEnabled;
 143       attr->CullFace = ctx->Polygon.CullFlag;
 144       attr->DepthTest = ctx->Depth.Test;
 145       attr->Dither = ctx->Color.DitherFlag;
 146       attr->Fog = ctx->Fog.Enabled;
 147       for (i=0;i<MAX_LIGHTS;i++) {
 148          attr->Light[i] = ctx->Light.Light[i].Enabled;
 149       }
 150       attr->Lighting = ctx->Light.Enabled;
 151       attr->LineSmooth = ctx->Line.SmoothFlag;
 152       attr->LineStipple = ctx->Line.StippleFlag;
 153       attr->Histogram = ctx->Pixel.HistogramEnabled;
 154       attr->MinMax = ctx->Pixel.MinMaxEnabled;
 155       attr->IndexLogicOp = ctx->Color.IndexLogicOpEnabled;
 156       attr->ColorLogicOp = ctx->Color.ColorLogicOpEnabled;
 157       attr->Map1Color4 = ctx->Eval.Map1Color4;
 158       attr->Map1Index = ctx->Eval.Map1Index;
 159       attr->Map1Normal = ctx->Eval.Map1Normal;
 160       attr->Map1TextureCoord1 = ctx->Eval.Map1TextureCoord1;
 161       attr->Map1TextureCoord2 = ctx->Eval.Map1TextureCoord2;
 162       attr->Map1TextureCoord3 = ctx->Eval.Map1TextureCoord3;
 163       attr->Map1TextureCoord4 = ctx->Eval.Map1TextureCoord4;
 164       attr->Map1Vertex3 = ctx->Eval.Map1Vertex3;
 165       attr->Map1Vertex4 = ctx->Eval.Map1Vertex4;
 166       MEMCPY(attr->Map1Attrib, ctx->Eval.Map1Attrib, sizeof(ctx->Eval.Map1Attrib));
 167       attr->Map2Color4 = ctx->Eval.Map2Color4;
 168       attr->Map2Index = ctx->Eval.Map2Index;
 169       attr->Map2Normal = ctx->Eval.Map2Normal;
 170       attr->Map2TextureCoord1 = ctx->Eval.Map2TextureCoord1;
 171       attr->Map2TextureCoord2 = ctx->Eval.Map2TextureCoord2;
 172       attr->Map2TextureCoord3 = ctx->Eval.Map2TextureCoord3;
 173       attr->Map2TextureCoord4 = ctx->Eval.Map2TextureCoord4;
 174       attr->Map2Vertex3 = ctx->Eval.Map2Vertex3;
 175       attr->Map2Vertex4 = ctx->Eval.Map2Vertex4;
 176       MEMCPY(attr->Map2Attrib, ctx->Eval.Map2Attrib, sizeof(ctx->Eval.Map2Attrib));
 177       attr->Normalize = ctx->Transform.Normalize;
 178       attr->RasterPositionUnclipped = ctx->Transform.RasterPositionUnclipped;
 179       attr->PixelTexture = ctx->Pixel.PixelTextureEnabled;
 180       attr->PointSmooth = ctx->Point.SmoothFlag;
 181       attr->PointSprite = ctx->Point.PointSprite;
 182       attr->PolygonOffsetPoint = ctx->Polygon.OffsetPoint;
 183       attr->PolygonOffsetLine = ctx->Polygon.OffsetLine;
 184       attr->PolygonOffsetFill = ctx->Polygon.OffsetFill;
 185       attr->PolygonSmooth = ctx->Polygon.SmoothFlag;
 186       attr->PolygonStipple = ctx->Polygon.StippleFlag;
 187       attr->RescaleNormals = ctx->Transform.RescaleNormals;
 188       attr->Scissor = ctx->Scissor.Enabled;
 189       attr->Stencil = ctx->Stencil.Enabled;
 190       attr->MultisampleEnabled = ctx->Multisample.Enabled;
 191       attr->SampleAlphaToCoverage = ctx->Multisample.SampleAlphaToCoverage;
 192       attr->SampleAlphaToOne = ctx->Multisample.SampleAlphaToOne;
 193       attr->SampleCoverage = ctx->Multisample.SampleCoverage;
 194       attr->SampleCoverageInvert = ctx->Multisample.SampleCoverageInvert;
 195       for (i=0; i<MAX_TEXTURE_UNITS; i++) {
 196          attr->Texture[i] = ctx->Texture.Unit[i].Enabled;
 197          attr->TexGen[i] = ctx->Texture.Unit[i].TexGenEnabled;
 198       }
 199       /* GL_NV_vertex_program */
 200       attr->VertexProgram = ctx->VertexProgram.Enabled;
 201       attr->VertexProgramPointSize = ctx->VertexProgram.PointSizeEnabled;
 202       attr->VertexProgramTwoSide = ctx->VertexProgram.TwoSideEnabled;
 203       newnode = new_attrib_node( GL_ENABLE_BIT );
 204       newnode->data = attr;
 205       newnode->next = head;
 206       head = newnode;
 207    }
 208
 209    if (mask & GL_EVAL_BIT) {
 210       struct gl_eval_attrib *attr;
 211       attr = MALLOC_STRUCT( gl_eval_attrib );
 212       MEMCPY( attr, &ctx->Eval, sizeof(struct gl_eval_attrib) );
 213       newnode = new_attrib_node( GL_EVAL_BIT );
 214       newnode->data = attr;
 215       newnode->next = head;
 216       head = newnode;
 217    }
 218
 219    if (mask & GL_FOG_BIT) {
 220       struct gl_fog_attrib *attr;
 221       attr = MALLOC_STRUCT( gl_fog_attrib );
 222       MEMCPY( attr, &ctx->Fog, sizeof(struct gl_fog_attrib) );
 223       newnode = new_attrib_node( GL_FOG_BIT );
 224       newnode->data = attr;
 225       newnode->next = head;
 226       head = newnode;
 227    }
 228
 229    if (mask & GL_HINT_BIT) {
 230       struct gl_hint_attrib *attr;
 231       attr = MALLOC_STRUCT( gl_hint_attrib );
 232       MEMCPY( attr, &ctx->Hint, sizeof(struct gl_hint_attrib) );
 233       newnode = new_attrib_node( GL_HINT_BIT );
 234       newnode->data = attr;
 235       newnode->next = head;
 236       head = newnode;
 237    }
 238
 239    if (mask & GL_LIGHTING_BIT) {
 240       struct gl_light_attrib *attr;
 241       FLUSH_CURRENT(ctx, 0);    /* flush material changes */
 242       attr = MALLOC_STRUCT( gl_light_attrib );
 243       MEMCPY( attr, &ctx->Light, sizeof(struct gl_light_attrib) );
 244       newnode = new_attrib_node( GL_LIGHTING_BIT );
 245       newnode->data = attr;
 246       newnode->next = head;
 247       head = newnode;
 248    }
 249
 250    if (mask & GL_LINE_BIT) {
 251       struct gl_line_attrib *attr;
 252       attr = MALLOC_STRUCT( gl_line_attrib );
 253       MEMCPY( attr, &ctx->Line, sizeof(struct gl_line_attrib) );
 254       newnode = new_attrib_node( GL_LINE_BIT );
 255       newnode->data = attr;
 256       newnode->next = head;
 257       head = newnode;
 258    }
 259
 260    if (mask & GL_LIST_BIT) {
 261       struct gl_list_attrib *attr;
 262       attr = MALLOC_STRUCT( gl_list_attrib );
 263       MEMCPY( attr, &ctx->List, sizeof(struct gl_list_attrib) );
 264       newnode = new_attrib_node( GL_LIST_BIT );
 265       newnode->data = attr;
 266       newnode->next = head;
 267       head = newnode;
 268    }
 269
 270    if (mask & GL_PIXEL_MODE_BIT) {
 271       struct gl_pixel_attrib *attr;
 272       attr = MALLOC_STRUCT( gl_pixel_attrib );
 273       MEMCPY( attr, &ctx->Pixel, sizeof(struct gl_pixel_attrib) );
 274       newnode = new_attrib_node( GL_PIXEL_MODE_BIT );
 275       newnode->data = attr;
 276       newnode->next = head;
 277       head = newnode;
 278    }
 279
 280    if (mask & GL_POINT_BIT) {
 281       struct gl_point_attrib *attr;
 282       attr = MALLOC_STRUCT( gl_point_attrib );
 283       MEMCPY( attr, &ctx->Point, sizeof(struct gl_point_attrib) );
 284       newnode = new_attrib_node( GL_POINT_BIT );
 285       newnode->data = attr;
 286       newnode->next = head;
 287       head = newnode;
 288    }
 289
 290    if (mask & GL_POLYGON_BIT) {
 291       struct gl_polygon_attrib *attr;
 292       attr = MALLOC_STRUCT( gl_polygon_attrib );
 293       MEMCPY( attr, &ctx->Polygon, sizeof(struct gl_polygon_attrib) );
 294       newnode = new_attrib_node( GL_POLYGON_BIT );
 295       newnode->data = attr;
 296       newnode->next = head;
 297       head = newnode;
 298    }
 299
 300    if (mask & GL_POLYGON_STIPPLE_BIT) {
 301       GLuint *stipple;
 302       stipple = (GLuint *) MALLOC( 32*sizeof(GLuint) );
 303       MEMCPY( stipple, ctx->PolygonStipple, 32*sizeof(GLuint) );
 304       newnode = new_attrib_node( GL_POLYGON_STIPPLE_BIT );
 305       newnode->data = stipple;
 306       newnode->next = head;
 307       head = newnode;
 308    }
 309
 310    if (mask & GL_SCISSOR_BIT) {
 311       struct gl_scissor_attrib *attr;
 312       attr = MALLOC_STRUCT( gl_scissor_attrib );
 313       MEMCPY( attr, &ctx->Scissor, sizeof(struct gl_scissor_attrib) );
 314       newnode = new_attrib_node( GL_SCISSOR_BIT );
 315       newnode->data = attr;
 316       newnode->next = head;
 317       head = newnode;
 318    }
 319
 320    if (mask & GL_STENCIL_BUFFER_BIT) {
 321       struct gl_stencil_attrib *attr;
 322       attr = MALLOC_STRUCT( gl_stencil_attrib );
 323       MEMCPY( attr, &ctx->Stencil, sizeof(struct gl_stencil_attrib) );
 324       newnode = new_attrib_node( GL_STENCIL_BUFFER_BIT );
 325       newnode->data = attr;
 326       newnode->next = head;
 327       head = newnode;
 328    }
 329
 330    if (mask & GL_TEXTURE_BIT) {
 331       struct gl_texture_attrib *attr;
 332       GLuint u;
 333       /* Bump the texture object reference counts so that they don't
 334        * inadvertantly get deleted.
 335        */
 336       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 337          ctx->Texture.Unit[u].Current1D->RefCount++;
 338          ctx->Texture.Unit[u].Current2D->RefCount++;
 339          ctx->Texture.Unit[u].Current3D->RefCount++;
 340          ctx->Texture.Unit[u].CurrentCubeMap->RefCount++;
 341          ctx->Texture.Unit[u].CurrentRect->RefCount++;
 342       }
 343       attr = MALLOC_STRUCT( gl_texture_attrib );
 344       MEMCPY( attr, &ctx->Texture, sizeof(struct gl_texture_attrib) );
 345       /* copy state of the currently bound texture objects */
 346       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 347          _mesa_copy_texture_object(&attr->Unit[u].Saved1D,
 348                                    attr->Unit[u].Current1D);
 349          _mesa_copy_texture_object(&attr->Unit[u].Saved2D,
 350                                    attr->Unit[u].Current2D);
 351          _mesa_copy_texture_object(&attr->Unit[u].Saved3D,
 352                                    attr->Unit[u].Current3D);
 353          _mesa_copy_texture_object(&attr->Unit[u].SavedCubeMap,
 354                                    attr->Unit[u].CurrentCubeMap);
 355          _mesa_copy_texture_object(&attr->Unit[u].SavedRect,
 356                                    attr->Unit[u].CurrentRect);
 357       }
 358       newnode = new_attrib_node( GL_TEXTURE_BIT );
 359       newnode->data = attr;
 360       newnode->next = head;
 361       head = newnode;
 362    }
 363
 364    if (mask & GL_TRANSFORM_BIT) {
 365       struct gl_transform_attrib *attr;
 366       attr = MALLOC_STRUCT( gl_transform_attrib );
 367       MEMCPY( attr, &ctx->Transform, sizeof(struct gl_transform_attrib) );
 368       newnode = new_attrib_node( GL_TRANSFORM_BIT );
 369       newnode->data = attr;
 370       newnode->next = head;
 371       head = newnode;
 372    }
 373
 374    if (mask & GL_VIEWPORT_BIT) {
 375       struct gl_viewport_attrib *attr;
 376       attr = MALLOC_STRUCT( gl_viewport_attrib );
 377       MEMCPY( attr, &ctx->Viewport, sizeof(struct gl_viewport_attrib) );
 378       newnode = new_attrib_node( GL_VIEWPORT_BIT );
 379       newnode->data = attr;
 380       newnode->next = head;
 381       head = newnode;
 382    }
 383
 384    /* GL_ARB_multisample */
 385    if (mask & GL_MULTISAMPLE_BIT_ARB) {
 386       struct gl_multisample_attrib *attr;
 387       attr = MALLOC_STRUCT( gl_multisample_attrib );
 388       MEMCPY( attr, &ctx->Multisample, sizeof(struct gl_multisample_attrib) );
 389       newnode = new_attrib_node( GL_MULTISAMPLE_BIT_ARB );
 390       newnode->data = attr;
 391       newnode->next = head;
 392       head = newnode;
 393    }
 394
 395    ctx->AttribStack[ctx->AttribStackDepth] = head;
 396    ctx->AttribStackDepth++;
 397 }
 398
 399
 400
 401 static void
 402 pop_enable_group(GLcontext *ctx, const struct gl_enable_attrib *enable)
 403 {
 404    GLuint i;
 405
 406 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM)          \
 407         if ((VALUE) != (NEWVALUE)) {                    \
 408            _mesa_set_enable( ctx, ENUM, (NEWVALUE) );   \
 409         }
 410
 411    TEST_AND_UPDATE(ctx->Color.AlphaEnabled, enable->AlphaTest, GL_ALPHA_TEST);
 412    TEST_AND_UPDATE(ctx->Color.BlendEnabled, enable->Blend, GL_BLEND);
 413
 414    for (i=0;i<MAX_CLIP_PLANES;i++) {
 415       const GLuint mask = 1 << i;
 416       if ((ctx->Transform.ClipPlanesEnabled & mask) != (enable->ClipPlanes & mask))
 417           _mesa_set_enable(ctx, (GLenum) (GL_CLIP_PLANE0 + i),
 418                            (GLboolean) ((enable->ClipPlanes & mask) ? GL_TRUE : GL_FALSE));
 419    }
 420
 421    TEST_AND_UPDATE(ctx->Light.ColorMaterialEnabled, enable->ColorMaterial,
 422                    GL_COLOR_MATERIAL);
 423    TEST_AND_UPDATE(ctx->Polygon.CullFlag, enable->CullFace, GL_CULL_FACE);
 424    TEST_AND_UPDATE(ctx->Depth.Test, enable->DepthTest, GL_DEPTH_TEST);
 425    TEST_AND_UPDATE(ctx->Color.DitherFlag, enable->Dither, GL_DITHER);
 426    TEST_AND_UPDATE(ctx->Pixel.Convolution1DEnabled, enable->Convolution1D,
 427                    GL_CONVOLUTION_1D);
 428    TEST_AND_UPDATE(ctx->Pixel.Convolution2DEnabled, enable->Convolution2D,
 429                    GL_CONVOLUTION_2D);
 430    TEST_AND_UPDATE(ctx->Pixel.Separable2DEnabled, enable->Separable2D,
 431                    GL_SEPARABLE_2D);
 432    TEST_AND_UPDATE(ctx->Fog.Enabled, enable->Fog, GL_FOG);
 433    TEST_AND_UPDATE(ctx->Light.Enabled, enable->Lighting, GL_LIGHTING);
 434    TEST_AND_UPDATE(ctx->Line.SmoothFlag, enable->LineSmooth, GL_LINE_SMOOTH);
 435    TEST_AND_UPDATE(ctx->Line.StippleFlag, enable->LineStipple,
 436                    GL_LINE_STIPPLE);
 437    TEST_AND_UPDATE(ctx->Color.IndexLogicOpEnabled, enable->IndexLogicOp,
 438                    GL_INDEX_LOGIC_OP);
 439    TEST_AND_UPDATE(ctx->Color.ColorLogicOpEnabled, enable->ColorLogicOp,
 440                    GL_COLOR_LOGIC_OP);
 441
 442    TEST_AND_UPDATE(ctx->Eval.Map1Color4, enable->Map1Color4, GL_MAP1_COLOR_4);
 443    TEST_AND_UPDATE(ctx->Eval.Map1Index, enable->Map1Index, GL_MAP1_INDEX);
 444    TEST_AND_UPDATE(ctx->Eval.Map1Normal, enable->Map1Normal, GL_MAP1_NORMAL);
 445    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord1, enable->Map1TextureCoord1,
 446                    GL_MAP1_TEXTURE_COORD_1);
 447    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord2, enable->Map1TextureCoord2,
 448                    GL_MAP1_TEXTURE_COORD_2);
 449    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord3, enable->Map1TextureCoord3,
 450                    GL_MAP1_TEXTURE_COORD_3);
 451    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord4, enable->Map1TextureCoord4,
 452                    GL_MAP1_TEXTURE_COORD_4);
 453    TEST_AND_UPDATE(ctx->Eval.Map1Vertex3, enable->Map1Vertex3,
 454                    GL_MAP1_VERTEX_3);
 455    TEST_AND_UPDATE(ctx->Eval.Map1Vertex4, enable->Map1Vertex4,
 456                    GL_MAP1_VERTEX_4);
 457    for (i = 0; i < 16; i++) {
 458       TEST_AND_UPDATE(ctx->Eval.Map1Attrib[i], enable->Map1Attrib[i],
 459                       GL_MAP1_VERTEX_ATTRIB0_4_NV + i);
 460    }
 461
 462    TEST_AND_UPDATE(ctx->Eval.Map2Color4, enable->Map2Color4, GL_MAP2_COLOR_4);
 463    TEST_AND_UPDATE(ctx->Eval.Map2Index, enable->Map2Index, GL_MAP2_INDEX);
 464    TEST_AND_UPDATE(ctx->Eval.Map2Normal, enable->Map2Normal, GL_MAP2_NORMAL);
 465    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord1, enable->Map2TextureCoord1,
 466                    GL_MAP2_TEXTURE_COORD_1);
 467    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord2, enable->Map2TextureCoord2,
 468                    GL_MAP2_TEXTURE_COORD_2);
 469    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord3, enable->Map2TextureCoord3,
 470                    GL_MAP2_TEXTURE_COORD_3);
 471    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord4, enable->Map2TextureCoord4,
 472                    GL_MAP2_TEXTURE_COORD_4);
 473    TEST_AND_UPDATE(ctx->Eval.Map2Vertex3, enable->Map2Vertex3,
 474                    GL_MAP2_VERTEX_3);
 475    TEST_AND_UPDATE(ctx->Eval.Map2Vertex4, enable->Map2Vertex4,
 476                    GL_MAP2_VERTEX_4);
 477    for (i = 0; i < 16; i++) {
 478       TEST_AND_UPDATE(ctx->Eval.Map2Attrib[i], enable->Map2Attrib[i],
 479                       GL_MAP2_VERTEX_ATTRIB0_4_NV + i);
 480    }
 481
 482    TEST_AND_UPDATE(ctx->Eval.AutoNormal, enable->AutoNormal, GL_AUTO_NORMAL);
 483    TEST_AND_UPDATE(ctx->Transform.Normalize, enable->Normalize, GL_NORMALIZE);
 484    TEST_AND_UPDATE(ctx->Transform.RescaleNormals, enable->RescaleNormals,
 485                    GL_RESCALE_NORMAL_EXT);
 486    TEST_AND_UPDATE(ctx->Transform.RasterPositionUnclipped,
 487                    enable->RasterPositionUnclipped,
 488                    GL_RASTER_POSITION_UNCLIPPED_IBM);
 489    TEST_AND_UPDATE(ctx->Pixel.PixelTextureEnabled, enable->PixelTexture,
 490                    GL_POINT_SMOOTH);
 491    TEST_AND_UPDATE(ctx->Point.SmoothFlag, enable->PointSmooth,
 492                    GL_POINT_SMOOTH);
 493    if (ctx->Extensions.NV_point_sprite) {
 494       TEST_AND_UPDATE(ctx->Point.PointSprite, enable->PointSprite,
 495                       GL_POINT_SPRITE_NV);
 496    }
 497    TEST_AND_UPDATE(ctx->Polygon.OffsetPoint, enable->PolygonOffsetPoint,
 498                    GL_POLYGON_OFFSET_POINT);
 499    TEST_AND_UPDATE(ctx->Polygon.OffsetLine, enable->PolygonOffsetLine,
 500                    GL_POLYGON_OFFSET_LINE);
 501    TEST_AND_UPDATE(ctx->Polygon.OffsetFill, enable->PolygonOffsetFill,
 502                    GL_POLYGON_OFFSET_FILL);
 503    TEST_AND_UPDATE(ctx->Polygon.SmoothFlag, enable->PolygonSmooth,
 504                    GL_POLYGON_SMOOTH);
 505    TEST_AND_UPDATE(ctx->Polygon.StippleFlag, enable->PolygonStipple,
 506                    GL_POLYGON_STIPPLE);
 507    TEST_AND_UPDATE(ctx->Scissor.Enabled, enable->Scissor, GL_SCISSOR_TEST);
 508    TEST_AND_UPDATE(ctx->Stencil.Enabled, enable->Stencil, GL_STENCIL_TEST);
 509    /* XXX two-sided stencil */
 510    TEST_AND_UPDATE(ctx->Multisample.Enabled, enable->MultisampleEnabled,
 511                    GL_MULTISAMPLE_ARB);
 512    TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToCoverage,
 513                    enable->SampleAlphaToCoverage,
 514                    GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);
 515    TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToOne,
 516                    enable->SampleAlphaToOne,
 517                    GL_SAMPLE_ALPHA_TO_ONE_ARB);
 518    TEST_AND_UPDATE(ctx->Multisample.SampleCoverage,
 519                    enable->SampleCoverage,
 520                    GL_SAMPLE_COVERAGE_ARB);
 521    TEST_AND_UPDATE(ctx->Multisample.SampleCoverageInvert,
 522                    enable->SampleCoverageInvert,
 523                    GL_SAMPLE_COVERAGE_INVERT_ARB);
 524    /* GL_NV_vertex_program */
 525    TEST_AND_UPDATE(ctx->VertexProgram.Enabled,
 526                    enable->VertexProgram,
 527                    GL_VERTEX_PROGRAM_NV);
 528    TEST_AND_UPDATE(ctx->VertexProgram.PointSizeEnabled,
 529                    enable->VertexProgramPointSize,
 530                    GL_VERTEX_PROGRAM_POINT_SIZE_NV);
 531    TEST_AND_UPDATE(ctx->VertexProgram.TwoSideEnabled,
 532                    enable->VertexProgramTwoSide,
 533                    GL_VERTEX_PROGRAM_TWO_SIDE_NV);
 534
 535 #undef TEST_AND_UPDATE
 536
 537    /* texture unit enables */
 538    for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
 539       if (ctx->Texture.Unit[i].Enabled != enable->Texture[i]) {
 540          ctx->Texture.Unit[i].Enabled = enable->Texture[i];
 541          if (ctx->Driver.Enable) {
 542             if (ctx->Driver.ActiveTexture) {
 543                (*ctx->Driver.ActiveTexture)(ctx, i);
 544             }
 545             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_1D,
 546                              (GLboolean) (enable->Texture[i] & TEXTURE_1D_BIT) );
 547             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_2D,
 548                              (GLboolean) (enable->Texture[i] & TEXTURE_2D_BIT) );
 549             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_3D,
 550                              (GLboolean) (enable->Texture[i] & TEXTURE_3D_BIT) );
 551             if (ctx->Extensions.ARB_texture_cube_map)
 552                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_CUBE_MAP_ARB,
 553                           (GLboolean) (enable->Texture[i] & TEXTURE_CUBE_BIT) );
 554             if (ctx->Extensions.NV_texture_rectangle)
 555                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_RECTANGLE_NV,
 556                           (GLboolean) (enable->Texture[i] & TEXTURE_RECT_BIT) );
 557          }
 558       }
 559
 560       if (ctx->Texture.Unit[i].TexGenEnabled != enable->TexGen[i]) {
 561          ctx->Texture.Unit[i].TexGenEnabled = enable->TexGen[i];
 562          if (ctx->Driver.Enable) {
 563             if (ctx->Driver.ActiveTexture) {
 564                (*ctx->Driver.ActiveTexture)(ctx, i);
 565             }
 566             if (enable->TexGen[i] & S_BIT)
 567                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_TRUE);
 568             else
 569                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_FALSE);
 570             if (enable->TexGen[i] & T_BIT)
 571                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_TRUE);
 572             else
 573                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_FALSE);
 574             if (enable->TexGen[i] & R_BIT)
 575                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_TRUE);
 576             else
 577                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_FALSE);
 578             if (enable->TexGen[i] & Q_BIT)
 579                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_TRUE);
 580             else
 581                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_FALSE);
 582          }
 583       }
 584    }
 585
 586    if (ctx->Driver.ActiveTexture) {
 587       (*ctx->Driver.ActiveTexture)(ctx, ctx->Texture.CurrentUnit);
 588    }
 589 }
 590
 591
 592 static void
 593 pop_texture_group(GLcontext *ctx, const struct gl_texture_attrib *texAttrib)
 594 {
 595    GLuint u;
 596
 597    for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 598       const struct gl_texture_unit *unit = &texAttrib->Unit[u];
 599       GLuint i;
 600
 601       _mesa_ActiveTextureARB(GL_TEXTURE0_ARB + u);
 602       _mesa_set_enable(ctx, GL_TEXTURE_1D,
 603               (GLboolean) (unit->Enabled & TEXTURE_1D_BIT ? GL_TRUE : GL_FALSE));
 604       _mesa_set_enable(ctx, GL_TEXTURE_2D,
 605               (GLboolean) (unit->Enabled & TEXTURE_2D_BIT ? GL_TRUE : GL_FALSE));
 606       _mesa_set_enable(ctx, GL_TEXTURE_3D,
 607               (GLboolean) (unit->Enabled & TEXTURE_3D_BIT ? GL_TRUE : GL_FALSE));
 608       if (ctx->Extensions.ARB_texture_cube_map) {
 609          _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP_ARB,
 610              (GLboolean) (unit->Enabled & TEXTURE_CUBE_BIT ? GL_TRUE : GL_FALSE));
 611       }
 612       if (ctx->Extensions.NV_texture_rectangle) {
 613          _mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE_NV,
 614              (GLboolean) (unit->Enabled & TEXTURE_RECT_BIT ? GL_TRUE : GL_FALSE));
 615       }
 616       _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, unit->EnvMode);
 617       _mesa_TexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, unit->EnvColor);
 618       _mesa_TexGeni(GL_S, GL_TEXTURE_GEN_MODE, unit->GenModeS);
 619       _mesa_TexGeni(GL_T, GL_TEXTURE_GEN_MODE, unit->GenModeT);
 620       _mesa_TexGeni(GL_R, GL_TEXTURE_GEN_MODE, unit->GenModeR);
 621       _mesa_TexGeni(GL_Q, GL_TEXTURE_GEN_MODE, unit->GenModeQ);
 622       _mesa_TexGenfv(GL_S, GL_OBJECT_PLANE, unit->ObjectPlaneS);
 623       _mesa_TexGenfv(GL_T, GL_OBJECT_PLANE, unit->ObjectPlaneT);
 624       _mesa_TexGenfv(GL_R, GL_OBJECT_PLANE, unit->ObjectPlaneR);
 625       _mesa_TexGenfv(GL_Q, GL_OBJECT_PLANE, unit->ObjectPlaneQ);
 626       _mesa_TexGenfv(GL_S, GL_EYE_PLANE, unit->EyePlaneS);
 627       _mesa_TexGenfv(GL_T, GL_EYE_PLANE, unit->EyePlaneT);
 628       _mesa_TexGenfv(GL_R, GL_EYE_PLANE, unit->EyePlaneR);
 629       _mesa_TexGenfv(GL_Q, GL_EYE_PLANE, unit->EyePlaneQ);
 630       if (ctx->Extensions.EXT_texture_lod_bias) {
 631          _mesa_TexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT,
 632                        GL_TEXTURE_LOD_BIAS_EXT, unit->LodBias);
 633       }
 634       if (ctx->Extensions.EXT_texture_env_combine ||
 635           ctx->Extensions.ARB_texture_env_combine) {
 636          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_EXT,
 637                        unit->CombineModeRGB);
 638          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_EXT,
 639                        unit->CombineModeA);
 640          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_EXT,
 641                        unit->CombineSourceRGB[0]);
 642          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_EXT,
 643                        unit->CombineSourceRGB[1]);
 644          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB_EXT,
 645                        unit->CombineSourceRGB[2]);
 646          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_EXT,
 647                        unit->CombineSourceA[0]);
 648          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_EXT,
 649                        unit->CombineSourceA[1]);
 650          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA_EXT,
 651                        unit->CombineSourceA[2]);
 652          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_EXT,
 653                        unit->CombineOperandRGB[0]);
 654          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_EXT,
 655                        unit->CombineOperandRGB[1]);
 656          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB_EXT,
 657                        unit->CombineOperandRGB[2]);
 658          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_EXT,
 659                        unit->CombineOperandA[0]);
 660          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_EXT,
 661                        unit->CombineOperandA[1]);
 662          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA_EXT,
 663                        unit->CombineOperandA[2]);
 664          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_EXT,
 665                        1 << unit->CombineScaleShiftRGB);
 666          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE,
 667                        1 << unit->CombineScaleShiftA);
 668       }
 669
 670       /* Restore texture object state */
 671       for (i = 0; i < NUM_TEXTURE_TARGETS; i++) {
 672          GLenum target = 0;
 673          const struct gl_texture_object *obj = NULL;
 674          GLfloat bordColor[4];
 675
 676          switch (i) {
 677          case 0:
 678             target = GL_TEXTURE_1D;
 679             obj = &unit->Saved1D;
 680             break;
 681          case 1:
 682             target = GL_TEXTURE_2D;
 683             obj = &unit->Saved2D;
 684             break;
 685          case 2:
 686             target = GL_TEXTURE_3D;
 687             obj = &unit->Saved3D;
 688             break;
 689          case 3:
 690             if (!ctx->Extensions.ARB_texture_cube_map)
 691                continue;
 692             target = GL_TEXTURE_CUBE_MAP_ARB;
 693             obj = &unit->SavedCubeMap;
 694             break;
 695          case 4:
 696             if (!ctx->Extensions.NV_texture_rectangle)
 697                continue;
 698             target = GL_TEXTURE_RECTANGLE_NV;
 699             obj = &unit->SavedRect;
 700             break;
 701          default:
 702             ; /* silence warnings */
 703          }
 704
 705          _mesa_BindTexture(target, obj->Name);
 706
 707          bordColor[0] = CHAN_TO_FLOAT(obj->BorderColor[0]);
 708          bordColor[1] = CHAN_TO_FLOAT(obj->BorderColor[1]);
 709          bordColor[2] = CHAN_TO_FLOAT(obj->BorderColor[2]);
 710          bordColor[3] = CHAN_TO_FLOAT(obj->BorderColor[3]);
 711
 712          _mesa_TexParameterf(target, GL_TEXTURE_PRIORITY, obj->Priority);
 713          _mesa_TexParameterfv(target, GL_TEXTURE_BORDER_COLOR, bordColor);
 714          _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, obj->WrapS);
 715          _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, obj->WrapT);
 716          _mesa_TexParameteri(target, GL_TEXTURE_WRAP_R, obj->WrapR);
 717          _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, obj->MinFilter);
 718          _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, obj->MagFilter);
 719          _mesa_TexParameterf(target, GL_TEXTURE_MIN_LOD, obj->MinLod);
 720          _mesa_TexParameterf(target, GL_TEXTURE_MAX_LOD, obj->MaxLod);
 721          _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, obj->BaseLevel);
 722          _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, obj->MaxLevel);
 723          if (ctx->Extensions.EXT_texture_filter_anisotropic) {
 724             _mesa_TexParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT,
 725                                 obj->MaxAnisotropy);
 726          }
 727          if (ctx->Extensions.SGIX_shadow) {
 728             _mesa_TexParameteri(target, GL_TEXTURE_COMPARE_SGIX,
 729                                 obj->CompareFlag);
 730             _mesa_TexParameteri(target, GL_TEXTURE_COMPARE_OPERATOR_SGIX,
 731                                 obj->CompareOperator);
 732          }
 733          if (ctx->Extensions.SGIX_shadow_ambient) {
 734             _mesa_TexParameterf(target, GL_SHADOW_AMBIENT_SGIX,
 735                                 obj->ShadowAmbient);
 736          }
 737
 738       }
 739    }
 740    _mesa_ActiveTextureARB(GL_TEXTURE0_ARB
 741                           + texAttrib->CurrentUnit);
 742
 743    /* "un-bump" the texture object reference counts.  We did that so they
 744     * wouldn't inadvertantly get deleted while they were still referenced
 745     * inside the attribute state stack.
 746     */
 747    for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 748       ctx->Texture.Unit[u].Current1D->RefCount--;
 749       ctx->Texture.Unit[u].Current2D->RefCount--;
 750       ctx->Texture.Unit[u].Current3D->RefCount--;
 751       ctx->Texture.Unit[u].CurrentCubeMap->RefCount--;
 752       ctx->Texture.Unit[u].CurrentRect->RefCount--;
 753    }
 754 }
 755
 756
 757 /*
 758  * This function is kind of long just because we have to call a lot
 759  * of device driver functions to update device driver state.
 760  *
 761  * XXX As it is now, most of the pop-code calls immediate-mode Mesa functions
 762  * in order to restore GL state.  This isn't terribly efficient but it
 763  * ensures that dirty flags and any derived state gets updated correctly.
 764  * We could at least check if the value to restore equals the current value
 765  * and then skip the Mesa call.
 766  */
 767 void
 768 _mesa_PopAttrib(void)
 769 {
 770    struct gl_attrib_node *attr, *next;
 771    GET_CURRENT_CONTEXT(ctx);
 772    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 773
 774    if (ctx->AttribStackDepth == 0) {
 775       _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopAttrib" );
 776       return;
 777    }
 778
 779    ctx->AttribStackDepth--;
 780    attr = ctx->AttribStack[ctx->AttribStackDepth];
 781
 782    while (attr) {
 783
 784       if (MESA_VERBOSE & VERBOSE_API) {
 785          _mesa_debug(ctx, "glPopAttrib %s\n",
 786                      _mesa_lookup_enum_by_nr(attr->kind));
 787       }
 788
 789       switch (attr->kind) {
 790          case GL_ACCUM_BUFFER_BIT:
 791             {
 792                const struct gl_accum_attrib *accum;
 793                accum = (const struct gl_accum_attrib *) attr->data;
 794                _mesa_ClearAccum(accum->ClearColor[0],
 795                                 accum->ClearColor[1],
 796                                 accum->ClearColor[2],
 797                                 accum->ClearColor[3]);
 798             }
 799             break;
 800          case GL_COLOR_BUFFER_BIT:
 801             {
 802                const struct gl_colorbuffer_attrib *color;
 803                color = (const struct gl_colorbuffer_attrib *) attr->data;
 804                _mesa_ClearIndex((GLfloat) color->ClearIndex);
 805                _mesa_ClearColor(color->ClearColor[0],
 806                                 color->ClearColor[1],
 807                                 color->ClearColor[2],
 808                                 color->ClearColor[3]);
 809                _mesa_IndexMask(color->IndexMask);
 810                _mesa_ColorMask((GLboolean) (color->ColorMask[0] != 0),
 811                                (GLboolean) (color->ColorMask[1] != 0),
 812                                (GLboolean) (color->ColorMask[2] != 0),
 813                                (GLboolean) (color->ColorMask[3] != 0));
 814                _mesa_DrawBuffer(color->DrawBuffer);
 815                _mesa_set_enable(ctx, GL_ALPHA_TEST, color->AlphaEnabled);
 816                _mesa_AlphaFunc(color->AlphaFunc, color->AlphaRef);
 817                _mesa_set_enable(ctx, GL_BLEND, color->BlendEnabled);
 818                _mesa_BlendFuncSeparateEXT(color->BlendSrcRGB,
 819                                           color->BlendDstRGB,
 820                                           color->BlendSrcA,
 821                                           color->BlendDstA);
 822                _mesa_BlendEquation(color->BlendEquation);
 823                _mesa_BlendColor(color->BlendColor[0],
 824                                 color->BlendColor[1],
 825                                 color->BlendColor[2],
 826                                 color->BlendColor[3]);
 827                _mesa_LogicOp(color->LogicOp);
 828                _mesa_set_enable(ctx, GL_COLOR_LOGIC_OP,
 829                                 color->ColorLogicOpEnabled);
 830                _mesa_set_enable(ctx, GL_INDEX_LOGIC_OP,
 831                                 color->IndexLogicOpEnabled);
 832                _mesa_set_enable(ctx, GL_DITHER, color->DitherFlag);
 833             }
 834             break;
 835          case GL_CURRENT_BIT:
 836             FLUSH_CURRENT( ctx, 0 );
 837             MEMCPY( &ctx->Current, attr->data,
 838                     sizeof(struct gl_current_attrib) );
 839             break;
 840          case GL_DEPTH_BUFFER_BIT:
 841             {
 842                const struct gl_depthbuffer_attrib *depth;
 843                depth = (const struct gl_depthbuffer_attrib *) attr->data;
 844                _mesa_DepthFunc(depth->Func);
 845                _mesa_ClearDepth(depth->Clear);
 846                _mesa_set_enable(ctx, GL_DEPTH_TEST, depth->Test);
 847                _mesa_DepthMask(depth->Mask);
 848                if (ctx->Extensions.HP_occlusion_test)
 849                   _mesa_set_enable(ctx, GL_OCCLUSION_TEST_HP,
 850                                    depth->OcclusionTest);
 851             }
 852             break;
 853          case GL_ENABLE_BIT:
 854             {
 855                const struct gl_enable_attrib *enable;
 856                enable = (const struct gl_enable_attrib *) attr->data;
 857                pop_enable_group(ctx, enable);
 858                ctx->NewState |= _NEW_ALL;
 859             }
 860             break;
 861          case GL_EVAL_BIT:
 862             MEMCPY( &ctx->Eval, attr->data, sizeof(struct gl_eval_attrib) );
 863             ctx->NewState |= _NEW_EVAL;
 864             break;
 865          case GL_FOG_BIT:
 866             {
 867                const struct gl_fog_attrib *fog;
 868                fog = (const struct gl_fog_attrib *) attr->data;
 869                _mesa_set_enable(ctx, GL_FOG, fog->Enabled);
 870                _mesa_Fogfv(GL_FOG_COLOR, fog->Color);
 871                _mesa_Fogf(GL_FOG_DENSITY, fog->Density);
 872                _mesa_Fogf(GL_FOG_START, fog->Start);
 873                _mesa_Fogf(GL_FOG_END, fog->End);
 874                _mesa_Fogf(GL_FOG_INDEX, fog->Index);
 875                _mesa_Fogi(GL_FOG_MODE, fog->Mode);
 876             }
 877             break;
 878          case GL_HINT_BIT:
 879             {
 880                const struct gl_hint_attrib *hint;
 881                hint = (const struct gl_hint_attrib *) attr->data;
 882                _mesa_Hint(GL_PERSPECTIVE_CORRECTION_HINT,
 883                           hint->PerspectiveCorrection );
 884                _mesa_Hint(GL_POINT_SMOOTH_HINT, hint->PointSmooth);
 885                _mesa_Hint(GL_LINE_SMOOTH_HINT, hint->LineSmooth);
 886                _mesa_Hint(GL_POLYGON_SMOOTH_HINT, hint->PolygonSmooth);
 887                _mesa_Hint(GL_FOG_HINT, hint->Fog);
 888                _mesa_Hint(GL_CLIP_VOLUME_CLIPPING_HINT_EXT,
 889                           hint->ClipVolumeClipping);
 890                if (ctx->Extensions.ARB_texture_compression)
 891                   _mesa_Hint(GL_TEXTURE_COMPRESSION_HINT_ARB,
 892                              hint->TextureCompression);
 893             }
 894             break;
 895          case GL_LIGHTING_BIT:
 896             {
 897                GLuint i;
 898                const struct gl_light_attrib *light;
 899                light = (const struct gl_light_attrib *) attr->data;
 900                /* lighting enable */
 901                _mesa_set_enable(ctx, GL_LIGHTING, light->Enabled);
 902                /* per-light state */
 903
 904                if (ctx->ModelviewMatrixStack.Top->flags & MAT_DIRTY_INVERSE)
 905                   _math_matrix_analyse( ctx->ModelviewMatrixStack.Top );
 906
 907                for (i = 0; i < MAX_LIGHTS; i++) {
 908                   GLenum lgt = (GLenum) (GL_LIGHT0 + i);
 909                   const struct gl_light *l = &light->Light[i];
 910                   GLfloat tmp[4];
 911                   _mesa_set_enable(ctx, lgt, l->Enabled);
 912                   _mesa_Lightfv( lgt, GL_AMBIENT, l->Ambient );
 913                   _mesa_Lightfv( lgt, GL_DIFFUSE, l->Diffuse );
 914                   _mesa_Lightfv( lgt, GL_SPECULAR, l->Specular );
 915                   TRANSFORM_POINT( tmp, ctx->ModelviewMatrixStack.Top->inv, l->EyePosition );
 916                   _mesa_Lightfv( lgt, GL_POSITION, tmp );
 917                   TRANSFORM_POINT( tmp, ctx->ModelviewMatrixStack.Top->m, l->EyeDirection );
 918                   _mesa_Lightfv( lgt, GL_SPOT_DIRECTION, tmp );
 919                   _mesa_Lightfv( lgt, GL_SPOT_EXPONENT, &l->SpotExponent );
 920                   _mesa_Lightfv( lgt, GL_SPOT_CUTOFF, &l->SpotCutoff );
 921                   _mesa_Lightfv( lgt, GL_CONSTANT_ATTENUATION,
 922                                  &l->ConstantAttenuation );
 923                   _mesa_Lightfv( lgt, GL_LINEAR_ATTENUATION,
 924                                  &l->LinearAttenuation );
 925                   _mesa_Lightfv( lgt, GL_QUADRATIC_ATTENUATION,
 926                                  &l->QuadraticAttenuation );
 927                }
 928                /* light model */
 929                _mesa_LightModelfv(GL_LIGHT_MODEL_AMBIENT,
 930                                   light->Model.Ambient);
 931                _mesa_LightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER,
 932                                  (GLfloat) light->Model.LocalViewer);
 933                _mesa_LightModelf(GL_LIGHT_MODEL_TWO_SIDE,
 934                                  (GLfloat) light->Model.TwoSide);
 935                _mesa_LightModelf(GL_LIGHT_MODEL_COLOR_CONTROL,
 936                                  (GLfloat) light->Model.ColorControl);
 937                /* materials */
 938                MEMCPY(ctx->Light.Material, light->Material,
 939                       2 * sizeof(struct gl_material));
 940                /* shade model */
 941                _mesa_ShadeModel(light->ShadeModel);
 942                /* color material */
 943                _mesa_ColorMaterial(light->ColorMaterialFace,
 944                                    light->ColorMaterialMode);
 945                _mesa_set_enable(ctx, GL_COLOR_MATERIAL,
 946                                 light->ColorMaterialEnabled);
 947             }
 948             break;
 949          case GL_LINE_BIT:
 950             {
 951                const struct gl_line_attrib *line;
 952                line = (const struct gl_line_attrib *) attr->data;
 953                _mesa_set_enable(ctx, GL_LINE_SMOOTH, line->SmoothFlag);
 954                _mesa_set_enable(ctx, GL_LINE_STIPPLE, line->StippleFlag);
 955                _mesa_LineStipple(line->StippleFactor, line->StipplePattern);
 956                _mesa_LineWidth(line->Width);
 957             }
 958             break;
 959          case GL_LIST_BIT:
 960             MEMCPY( &ctx->List, attr->data, sizeof(struct gl_list_attrib) );
 961             break;
 962          case GL_PIXEL_MODE_BIT:
 963             MEMCPY( &ctx->Pixel, attr->data, sizeof(struct gl_pixel_attrib) );
 964             ctx->NewState |= _NEW_PIXEL;
 965             break;
 966          case GL_POINT_BIT:
 967             {
 968                const struct gl_point_attrib *point;
 969                point = (const struct gl_point_attrib *) attr->data;
 970                _mesa_PointSize(point->Size);
 971                _mesa_set_enable(ctx, GL_POINT_SMOOTH, point->SmoothFlag);
 972                if (ctx->Extensions.EXT_point_parameters) {
 973                   _mesa_PointParameterfvEXT(GL_DISTANCE_ATTENUATION_EXT,
 974                                             point->Params);
 975                   _mesa_PointParameterfEXT(GL_POINT_SIZE_MIN_EXT,
 976                                            point->MinSize);
 977                   _mesa_PointParameterfEXT(GL_POINT_SIZE_MAX_EXT,
 978                                            point->MaxSize);
 979                   _mesa_PointParameterfEXT(GL_POINT_FADE_THRESHOLD_SIZE_EXT,
 980                                            point->Threshold);
 981                }
 982                if (ctx->Extensions.NV_point_sprite) {
 983                   GLuint u;
 984                   for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 985                      _mesa_TexEnvi(GL_POINT_SPRITE_NV, GL_COORD_REPLACE_NV,
 986                                    (GLint) point->CoordReplace[u]);
 987                   }
 988                   _mesa_set_enable(ctx, GL_POINT_SPRITE_NV,point->PointSprite);
 989                   _mesa_PointParameteriNV(GL_POINT_SPRITE_R_MODE_NV,
 990                                           ctx->Point.SpriteRMode);
 991                }
 992             }
 993             break;
 994          case GL_POLYGON_BIT:
 995             {
 996                const struct gl_polygon_attrib *polygon;
 997                polygon = (const struct gl_polygon_attrib *) attr->data;
 998                _mesa_CullFace(polygon->CullFaceMode);
 999                _mesa_FrontFace(polygon->FrontFace);
1000                _mesa_PolygonMode(GL_FRONT, polygon->FrontMode);
1001                _mesa_PolygonMode(GL_BACK, polygon->BackMode);
1002                _mesa_PolygonOffset(polygon->OffsetFactor,
1003                                    polygon->OffsetUnits);
1004                _mesa_set_enable(ctx, GL_POLYGON_SMOOTH, polygon->SmoothFlag);
1005                _mesa_set_enable(ctx, GL_POLYGON_STIPPLE, polygon->StippleFlag);
1006                _mesa_set_enable(ctx, GL_CULL_FACE, polygon->CullFlag);
1007                _mesa_set_enable(ctx, GL_POLYGON_OFFSET_POINT,
1008                                 polygon->OffsetPoint);
1009                _mesa_set_enable(ctx, GL_POLYGON_OFFSET_LINE,
1010                                 polygon->OffsetLine);
1011                _mesa_set_enable(ctx, GL_POLYGON_OFFSET_FILL,
1012                                 polygon->OffsetFill);
1013             }
1014             break;
1015          case GL_POLYGON_STIPPLE_BIT:
1016             MEMCPY( ctx->PolygonStipple, attr->data, 32*sizeof(GLuint) );
1017             ctx->NewState |= _NEW_POLYGONSTIPPLE;
1018             if (ctx->Driver.PolygonStipple)
1019                ctx->Driver.PolygonStipple( ctx, (const GLubyte *) attr->data );
1020             break;
1021          case GL_SCISSOR_BIT:
1022             {
1023                const struct gl_scissor_attrib *scissor;
1024                scissor = (const struct gl_scissor_attrib *) attr->data;
1025                _mesa_Scissor(scissor->X, scissor->Y,
1026                              scissor->Width, scissor->Height);
1027                _mesa_set_enable(ctx, GL_SCISSOR_TEST, scissor->Enabled);
1028             }
1029             break;
1030          case GL_STENCIL_BUFFER_BIT:
1031             {
1032                const GLint face = 0; /* XXX stencil two side */
1033                const struct gl_stencil_attrib *stencil;
1034                stencil = (const struct gl_stencil_attrib *) attr->data;
1035                _mesa_set_enable(ctx, GL_STENCIL_TEST, stencil->Enabled);
1036                _mesa_ClearStencil(stencil->Clear);
1037                _mesa_StencilFunc(stencil->Function[face], stencil->Ref[face],
1038                                  stencil->ValueMask[face]);
1039                _mesa_StencilMask(stencil->WriteMask[face]);
1040                _mesa_StencilOp(stencil->FailFunc[face],
1041                                stencil->ZFailFunc[face],
1042                                stencil->ZPassFunc[face]);
1043             }
1044             break;
1045          case GL_TRANSFORM_BIT:
1046             {
1047                GLuint i;
1048                const struct gl_transform_attrib *xform;
1049                xform = (const struct gl_transform_attrib *) attr->data;
1050                _mesa_MatrixMode(xform->MatrixMode);
1051
1052                if (ctx->ProjectionMatrixStack.Top->flags & MAT_DIRTY)
1053                   _math_matrix_analyse( ctx->ProjectionMatrixStack.Top );
1054
1055                /* restore clip planes */
1056                for (i = 0; i < MAX_CLIP_PLANES; i++) {
1057                   const GLuint mask = 1 << 1;
1058                   const GLfloat *eyePlane = xform->EyeUserPlane[i];
1059                   COPY_4V(ctx->Transform.EyeUserPlane[i], eyePlane);
1060                   if (xform->ClipPlanesEnabled & mask) {
1061                      _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_TRUE);
1062                   }
1063                   else {
1064                      _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_FALSE);
1065                   }
1066                   if (ctx->Driver.ClipPlane)
1067                      ctx->Driver.ClipPlane( ctx, GL_CLIP_PLANE0 + i, eyePlane );
1068                }
1069
1070                /* normalize/rescale */
1071                if (xform->Normalize != ctx->Transform.Normalize)
1072                   _mesa_set_enable(ctx, GL_NORMALIZE,ctx->Transform.Normalize);
1073                if (xform->RescaleNormals != ctx->Transform.RescaleNormals)
1074                   _mesa_set_enable(ctx, GL_RESCALE_NORMAL_EXT,
1075                                    ctx->Transform.RescaleNormals);
1076             }
1077             break;
1078          case GL_TEXTURE_BIT:
1079             /* Take care of texture object reference counters */
1080             {
1081                const struct gl_texture_attrib *texture;
1082                texture = (const struct gl_texture_attrib *) attr->data;
1083                pop_texture_group(ctx, texture);
1084                ctx->NewState |= _NEW_TEXTURE;
1085             }
1086             break;
1087          case GL_VIEWPORT_BIT:
1088             {
1089                const struct gl_viewport_attrib *vp;
1090                vp = (const struct gl_viewport_attrib *) attr->data;
1091                _mesa_Viewport(vp->X, vp->Y, vp->Width, vp->Height);
1092                _mesa_DepthRange(vp->Near, vp->Far);
1093             }
1094             break;
1095          case GL_MULTISAMPLE_BIT_ARB:
1096             {
1097                const struct gl_multisample_attrib *ms;
1098                ms = (const struct gl_multisample_attrib *) attr->data;
1099                _mesa_SampleCoverageARB(ms->SampleCoverageValue,
1100                                        ms->SampleCoverageInvert);
1101             }
1102             break;
1103
1104          default:
1105             _mesa_problem( ctx, "Bad attrib flag in PopAttrib");
1106             break;
1107       }
1108
1109       next = attr->next;
1110       FREE( attr->data );
1111       FREE( attr );
1112       attr = next;
1113    }
1114 }
1115
1116
1117 #define GL_CLIENT_PACK_BIT (1<<20)
1118 #define GL_CLIENT_UNPACK_BIT (1<<21)
1119
1120
1121 void
1122 _mesa_PushClientAttrib(GLbitfield mask)
1123 {
1124    struct gl_attrib_node *newnode;
1125    struct gl_attrib_node *head;
1126
1127    GET_CURRENT_CONTEXT(ctx);
1128    ASSERT_OUTSIDE_BEGIN_END(ctx);
1129
1130    if (ctx->ClientAttribStackDepth >= MAX_CLIENT_ATTRIB_STACK_DEPTH) {
1131       _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushClientAttrib" );
1132       return;
1133    }
1134
1135    /* Build linked list of attribute nodes which save all attribute */
1136    /* groups specified by the mask. */
1137    head = NULL;
1138
1139    if (mask & GL_CLIENT_PIXEL_STORE_BIT) {
1140       struct gl_pixelstore_attrib *attr;
1141       /* packing attribs */
1142       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
1143       MEMCPY( attr, &ctx->Pack, sizeof(struct gl_pixelstore_attrib) );
1144       newnode = new_attrib_node( GL_CLIENT_PACK_BIT );
1145       newnode->data = attr;
1146       newnode->next = head;
1147       head = newnode;
1148       /* unpacking attribs */
1149       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
1150       MEMCPY( attr, &ctx->Unpack, sizeof(struct gl_pixelstore_attrib) );
1151       newnode = new_attrib_node( GL_CLIENT_UNPACK_BIT );
1152       newnode->data = attr;
1153       newnode->next = head;
1154       head = newnode;
1155    }
1156    if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) {
1157       struct gl_array_attrib *attr;
1158       attr = MALLOC_STRUCT( gl_array_attrib );
1159       MEMCPY( attr, &ctx->Array, sizeof(struct gl_array_attrib) );
1160       newnode = new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT );
1161       newnode->data = attr;
1162       newnode->next = head;
1163       head = newnode;
1164    }
1165
1166    ctx->ClientAttribStack[ctx->ClientAttribStackDepth] = head;
1167    ctx->ClientAttribStackDepth++;
1168 }
1169
1170
1171
1172
1173 void
1174 _mesa_PopClientAttrib(void)
1175 {
1176    struct gl_attrib_node *attr, *next;
1177
1178    GET_CURRENT_CONTEXT(ctx);
1179    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1180
1181    if (ctx->ClientAttribStackDepth == 0) {
1182       _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopClientAttrib" );
1183       return;
1184    }
1185
1186    ctx->ClientAttribStackDepth--;
1187    attr = ctx->ClientAttribStack[ctx->ClientAttribStackDepth];
1188
1189    while (attr) {
1190       switch (attr->kind) {
1191          case GL_CLIENT_PACK_BIT:
1192             MEMCPY( &ctx->Pack, attr->data,
1193                     sizeof(struct gl_pixelstore_attrib) );
1194             ctx->NewState |= _NEW_PACKUNPACK;
1195             break;
1196          case GL_CLIENT_UNPACK_BIT:
1197             MEMCPY( &ctx->Unpack, attr->data,
1198                     sizeof(struct gl_pixelstore_attrib) );
1199             ctx->NewState |= _NEW_PACKUNPACK;
1200             break;
1201          case GL_CLIENT_VERTEX_ARRAY_BIT:
1202             MEMCPY( &ctx->Array, attr->data,
1203                     sizeof(struct gl_array_attrib) );
1204             ctx->NewState |= _NEW_ARRAY;
1205             break;
1206          default:
1207             _mesa_problem( ctx, "Bad attrib flag in PopClientAttrib");
1208             break;
1209       }
1210
1211       next = attr->next;
1212       FREE( attr->data );
1213       FREE( attr );
1214       attr = next;
1215    }
1216 }