src/mesa/main/attrib.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.5.1
   4  *
   5  * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #include "glheader.h"
  26 #include "imports.h"
  27 #include "accum.h"
  28 #include "arrayobj.h"
  29 #include "attrib.h"
  30 #include "blend.h"
  31 #include "buffers.h"
  32 #include "bufferobj.h"
  33 #include "colormac.h"
  34 #include "colortab.h"
  35 #include "context.h"
  36 #include "depth.h"
  37 #include "enable.h"
  38 #include "enums.h"
  39 #include "fog.h"
  40 #include "hint.h"
  41 #include "light.h"
  42 #include "lines.h"
  43 #include "matrix.h"
  44 #include "points.h"
  45 #include "polygon.h"
  46 #include "simple_list.h"
  47 #include "stencil.h"
  48 #include "texobj.h"
  49 #include "texstate.h"
  50 #include "mtypes.h"
  51 #include "math/m_xform.h"
  52
  53
  54 /**
  55  * Allocate a new attribute state node.  These nodes have a
  56  * "kind" value and a pointer to a struct of state data.
  57  */
  58 static struct gl_attrib_node *
  59 new_attrib_node( GLbitfield kind )
  60 {
  61    struct gl_attrib_node *an = MALLOC_STRUCT(gl_attrib_node);
  62    if (an) {
  63       an->kind = kind;
  64    }
  65    return an;
  66 }
  67
  68
  69 void GLAPIENTRY
  70 _mesa_PushAttrib(GLbitfield mask)
  71 {
  72    struct gl_attrib_node *newnode;
  73    struct gl_attrib_node *head;
  74
  75    GET_CURRENT_CONTEXT(ctx);
  76    ASSERT_OUTSIDE_BEGIN_END(ctx);
  77
  78    if (MESA_VERBOSE & VERBOSE_API)
  79       _mesa_debug(ctx, "glPushAttrib %x\n", (int) mask);
  80
  81    if (ctx->AttribStackDepth >= MAX_ATTRIB_STACK_DEPTH) {
  82       _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushAttrib" );
  83       return;
  84    }
  85
  86    /* Build linked list of attribute nodes which save all attribute */
  87    /* groups specified by the mask. */
  88    head = NULL;
  89
  90    if (mask & GL_ACCUM_BUFFER_BIT) {
  91       struct gl_accum_attrib *attr;
  92       attr = MALLOC_STRUCT( gl_accum_attrib );
  93       MEMCPY( attr, &ctx->Accum, sizeof(struct gl_accum_attrib) );
  94       newnode = new_attrib_node( GL_ACCUM_BUFFER_BIT );
  95       newnode->data = attr;
  96       newnode->next = head;
  97       head = newnode;
  98    }
  99
 100    if (mask & GL_COLOR_BUFFER_BIT) {
 101       struct gl_colorbuffer_attrib *attr;
 102       attr = MALLOC_STRUCT( gl_colorbuffer_attrib );
 103       MEMCPY( attr, &ctx->Color, sizeof(struct gl_colorbuffer_attrib) );
 104       newnode = new_attrib_node( GL_COLOR_BUFFER_BIT );
 105       newnode->data = attr;
 106       newnode->next = head;
 107       head = newnode;
 108    }
 109
 110    if (mask & GL_CURRENT_BIT) {
 111       struct gl_current_attrib *attr;
 112       FLUSH_CURRENT( ctx, 0 );
 113       attr = MALLOC_STRUCT( gl_current_attrib );
 114       MEMCPY( attr, &ctx->Current, sizeof(struct gl_current_attrib) );
 115       newnode = new_attrib_node( GL_CURRENT_BIT );
 116       newnode->data = attr;
 117       newnode->next = head;
 118       head = newnode;
 119    }
 120
 121    if (mask & GL_DEPTH_BUFFER_BIT) {
 122       struct gl_depthbuffer_attrib *attr;
 123       attr = MALLOC_STRUCT( gl_depthbuffer_attrib );
 124       MEMCPY( attr, &ctx->Depth, sizeof(struct gl_depthbuffer_attrib) );
 125       newnode = new_attrib_node( GL_DEPTH_BUFFER_BIT );
 126       newnode->data = attr;
 127       newnode->next = head;
 128       head = newnode;
 129    }
 130
 131    if (mask & GL_ENABLE_BIT) {
 132       struct gl_enable_attrib *attr;
 133       GLuint i;
 134       attr = MALLOC_STRUCT( gl_enable_attrib );
 135       /* Copy enable flags from all other attributes into the enable struct. */
 136       attr->AlphaTest = ctx->Color.AlphaEnabled;
 137       attr->AutoNormal = ctx->Eval.AutoNormal;
 138       attr->Blend = ctx->Color.BlendEnabled;
 139       attr->ClipPlanes = ctx->Transform.ClipPlanesEnabled;
 140       attr->ColorMaterial = ctx->Light.ColorMaterialEnabled;
 141       attr->ColorTable = ctx->Pixel.ColorTableEnabled;
 142       attr->PostColorMatrixColorTable = ctx->Pixel.PostColorMatrixColorTableEnabled;
 143       attr->PostConvolutionColorTable = ctx->Pixel.PostConvolutionColorTableEnabled;
 144       attr->Convolution1D = ctx->Pixel.Convolution1DEnabled;
 145       attr->Convolution2D = ctx->Pixel.Convolution2DEnabled;
 146       attr->Separable2D = ctx->Pixel.Separable2DEnabled;
 147       attr->CullFace = ctx->Polygon.CullFlag;
 148       attr->DepthTest = ctx->Depth.Test;
 149       attr->Dither = ctx->Color.DitherFlag;
 150       attr->Fog = ctx->Fog.Enabled;
 151       for (i = 0; i < ctx->Const.MaxLights; i++) {
 152          attr->Light[i] = ctx->Light.Light[i].Enabled;
 153       }
 154       attr->Lighting = ctx->Light.Enabled;
 155       attr->LineSmooth = ctx->Line.SmoothFlag;
 156       attr->LineStipple = ctx->Line.StippleFlag;
 157       attr->Histogram = ctx->Pixel.HistogramEnabled;
 158       attr->MinMax = ctx->Pixel.MinMaxEnabled;
 159       attr->IndexLogicOp = ctx->Color.IndexLogicOpEnabled;
 160       attr->ColorLogicOp = ctx->Color.ColorLogicOpEnabled;
 161       attr->Map1Color4 = ctx->Eval.Map1Color4;
 162       attr->Map1Index = ctx->Eval.Map1Index;
 163       attr->Map1Normal = ctx->Eval.Map1Normal;
 164       attr->Map1TextureCoord1 = ctx->Eval.Map1TextureCoord1;
 165       attr->Map1TextureCoord2 = ctx->Eval.Map1TextureCoord2;
 166       attr->Map1TextureCoord3 = ctx->Eval.Map1TextureCoord3;
 167       attr->Map1TextureCoord4 = ctx->Eval.Map1TextureCoord4;
 168       attr->Map1Vertex3 = ctx->Eval.Map1Vertex3;
 169       attr->Map1Vertex4 = ctx->Eval.Map1Vertex4;
 170       MEMCPY(attr->Map1Attrib, ctx->Eval.Map1Attrib, sizeof(ctx->Eval.Map1Attrib));
 171       attr->Map2Color4 = ctx->Eval.Map2Color4;
 172       attr->Map2Index = ctx->Eval.Map2Index;
 173       attr->Map2Normal = ctx->Eval.Map2Normal;
 174       attr->Map2TextureCoord1 = ctx->Eval.Map2TextureCoord1;
 175       attr->Map2TextureCoord2 = ctx->Eval.Map2TextureCoord2;
 176       attr->Map2TextureCoord3 = ctx->Eval.Map2TextureCoord3;
 177       attr->Map2TextureCoord4 = ctx->Eval.Map2TextureCoord4;
 178       attr->Map2Vertex3 = ctx->Eval.Map2Vertex3;
 179       attr->Map2Vertex4 = ctx->Eval.Map2Vertex4;
 180       MEMCPY(attr->Map2Attrib, ctx->Eval.Map2Attrib, sizeof(ctx->Eval.Map2Attrib));
 181       attr->Normalize = ctx->Transform.Normalize;
 182       attr->RasterPositionUnclipped = ctx->Transform.RasterPositionUnclipped;
 183       attr->PointSmooth = ctx->Point.SmoothFlag;
 184       attr->PointSprite = ctx->Point.PointSprite;
 185       attr->PolygonOffsetPoint = ctx->Polygon.OffsetPoint;
 186       attr->PolygonOffsetLine = ctx->Polygon.OffsetLine;
 187       attr->PolygonOffsetFill = ctx->Polygon.OffsetFill;
 188       attr->PolygonSmooth = ctx->Polygon.SmoothFlag;
 189       attr->PolygonStipple = ctx->Polygon.StippleFlag;
 190       attr->RescaleNormals = ctx->Transform.RescaleNormals;
 191       attr->Scissor = ctx->Scissor.Enabled;
 192       attr->Stencil = ctx->Stencil.Enabled;
 193       attr->StencilTwoSide = ctx->Stencil.TestTwoSide;
 194       attr->MultisampleEnabled = ctx->Multisample.Enabled;
 195       attr->SampleAlphaToCoverage = ctx->Multisample.SampleAlphaToCoverage;
 196       attr->SampleAlphaToOne = ctx->Multisample.SampleAlphaToOne;
 197       attr->SampleCoverage = ctx->Multisample.SampleCoverage;
 198       attr->SampleCoverageInvert = ctx->Multisample.SampleCoverageInvert;
 199       for (i=0; i<MAX_TEXTURE_UNITS; i++) {
 200          attr->Texture[i] = ctx->Texture.Unit[i].Enabled;
 201          attr->TexGen[i] = ctx->Texture.Unit[i].TexGenEnabled;
 202          attr->TextureColorTable[i] = ctx->Texture.Unit[i].ColorTableEnabled;
 203       }
 204       /* GL_NV_vertex_program */
 205       attr->VertexProgram = ctx->VertexProgram.Enabled;
 206       attr->VertexProgramPointSize = ctx->VertexProgram.PointSizeEnabled;
 207       attr->VertexProgramTwoSide = ctx->VertexProgram.TwoSideEnabled;
 208       newnode = new_attrib_node( GL_ENABLE_BIT );
 209       newnode->data = attr;
 210       newnode->next = head;
 211       head = newnode;
 212    }
 213
 214    if (mask & GL_EVAL_BIT) {
 215       struct gl_eval_attrib *attr;
 216       attr = MALLOC_STRUCT( gl_eval_attrib );
 217       MEMCPY( attr, &ctx->Eval, sizeof(struct gl_eval_attrib) );
 218       newnode = new_attrib_node( GL_EVAL_BIT );
 219       newnode->data = attr;
 220       newnode->next = head;
 221       head = newnode;
 222    }
 223
 224    if (mask & GL_FOG_BIT) {
 225       struct gl_fog_attrib *attr;
 226       attr = MALLOC_STRUCT( gl_fog_attrib );
 227       MEMCPY( attr, &ctx->Fog, sizeof(struct gl_fog_attrib) );
 228       newnode = new_attrib_node( GL_FOG_BIT );
 229       newnode->data = attr;
 230       newnode->next = head;
 231       head = newnode;
 232    }
 233
 234    if (mask & GL_HINT_BIT) {
 235       struct gl_hint_attrib *attr;
 236       attr = MALLOC_STRUCT( gl_hint_attrib );
 237       MEMCPY( attr, &ctx->Hint, sizeof(struct gl_hint_attrib) );
 238       newnode = new_attrib_node( GL_HINT_BIT );
 239       newnode->data = attr;
 240       newnode->next = head;
 241       head = newnode;
 242    }
 243
 244    if (mask & GL_LIGHTING_BIT) {
 245       struct gl_light_attrib *attr;
 246       FLUSH_CURRENT(ctx, 0);    /* flush material changes */
 247       attr = MALLOC_STRUCT( gl_light_attrib );
 248       MEMCPY( attr, &ctx->Light, sizeof(struct gl_light_attrib) );
 249       newnode = new_attrib_node( GL_LIGHTING_BIT );
 250       newnode->data = attr;
 251       newnode->next = head;
 252       head = newnode;
 253    }
 254
 255    if (mask & GL_LINE_BIT) {
 256       struct gl_line_attrib *attr;
 257       attr = MALLOC_STRUCT( gl_line_attrib );
 258       MEMCPY( attr, &ctx->Line, sizeof(struct gl_line_attrib) );
 259       newnode = new_attrib_node( GL_LINE_BIT );
 260       newnode->data = attr;
 261       newnode->next = head;
 262       head = newnode;
 263    }
 264
 265    if (mask & GL_LIST_BIT) {
 266       struct gl_list_attrib *attr;
 267       attr = MALLOC_STRUCT( gl_list_attrib );
 268       MEMCPY( attr, &ctx->List, sizeof(struct gl_list_attrib) );
 269       newnode = new_attrib_node( GL_LIST_BIT );
 270       newnode->data = attr;
 271       newnode->next = head;
 272       head = newnode;
 273    }
 274
 275    if (mask & GL_PIXEL_MODE_BIT) {
 276       struct gl_pixel_attrib *attr;
 277       attr = MALLOC_STRUCT( gl_pixel_attrib );
 278       MEMCPY( attr, &ctx->Pixel, sizeof(struct gl_pixel_attrib) );
 279       /* push the Read FBO's ReadBuffer state, not ctx->Pixel.ReadBuffer */
 280       attr->ReadBuffer = ctx->ReadBuffer->ColorReadBuffer;
 281       newnode = new_attrib_node( GL_PIXEL_MODE_BIT );
 282       newnode->data = attr;
 283       newnode->next = head;
 284       head = newnode;
 285    }
 286
 287    if (mask & GL_POINT_BIT) {
 288       struct gl_point_attrib *attr;
 289       attr = MALLOC_STRUCT( gl_point_attrib );
 290       MEMCPY( attr, &ctx->Point, sizeof(struct gl_point_attrib) );
 291       newnode = new_attrib_node( GL_POINT_BIT );
 292       newnode->data = attr;
 293       newnode->next = head;
 294       head = newnode;
 295    }
 296
 297    if (mask & GL_POLYGON_BIT) {
 298       struct gl_polygon_attrib *attr;
 299       attr = MALLOC_STRUCT( gl_polygon_attrib );
 300       MEMCPY( attr, &ctx->Polygon, sizeof(struct gl_polygon_attrib) );
 301       newnode = new_attrib_node( GL_POLYGON_BIT );
 302       newnode->data = attr;
 303       newnode->next = head;
 304       head = newnode;
 305    }
 306
 307    if (mask & GL_POLYGON_STIPPLE_BIT) {
 308       GLuint *stipple;
 309       stipple = (GLuint *) MALLOC( 32*sizeof(GLuint) );
 310       MEMCPY( stipple, ctx->PolygonStipple, 32*sizeof(GLuint) );
 311       newnode = new_attrib_node( GL_POLYGON_STIPPLE_BIT );
 312       newnode->data = stipple;
 313       newnode->next = head;
 314       head = newnode;
 315    }
 316
 317    if (mask & GL_SCISSOR_BIT) {
 318       struct gl_scissor_attrib *attr;
 319       attr = MALLOC_STRUCT( gl_scissor_attrib );
 320       MEMCPY( attr, &ctx->Scissor, sizeof(struct gl_scissor_attrib) );
 321       newnode = new_attrib_node( GL_SCISSOR_BIT );
 322       newnode->data = attr;
 323       newnode->next = head;
 324       head = newnode;
 325    }
 326
 327    if (mask & GL_STENCIL_BUFFER_BIT) {
 328       struct gl_stencil_attrib *attr;
 329       attr = MALLOC_STRUCT( gl_stencil_attrib );
 330       MEMCPY( attr, &ctx->Stencil, sizeof(struct gl_stencil_attrib) );
 331       newnode = new_attrib_node( GL_STENCIL_BUFFER_BIT );
 332       newnode->data = attr;
 333       newnode->next = head;
 334       head = newnode;
 335    }
 336
 337    if (mask & GL_TEXTURE_BIT) {
 338       struct gl_texture_attrib *attr;
 339       GLuint u;
 340       /* Bump the texture object reference counts so that they don't
 341        * inadvertantly get deleted.
 342        */
 343       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 344          ctx->Texture.Unit[u].Current1D->RefCount++;
 345          ctx->Texture.Unit[u].Current2D->RefCount++;
 346          ctx->Texture.Unit[u].Current3D->RefCount++;
 347          ctx->Texture.Unit[u].CurrentCubeMap->RefCount++;
 348          ctx->Texture.Unit[u].CurrentRect->RefCount++;
 349       }
 350       attr = MALLOC_STRUCT( gl_texture_attrib );
 351       MEMCPY( attr, &ctx->Texture, sizeof(struct gl_texture_attrib) );
 352       /* copy state of the currently bound texture objects */
 353       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 354          _mesa_copy_texture_object(&attr->Unit[u].Saved1D,
 355                                    attr->Unit[u].Current1D);
 356          _mesa_copy_texture_object(&attr->Unit[u].Saved2D,
 357                                    attr->Unit[u].Current2D);
 358          _mesa_copy_texture_object(&attr->Unit[u].Saved3D,
 359                                    attr->Unit[u].Current3D);
 360          _mesa_copy_texture_object(&attr->Unit[u].SavedCubeMap,
 361                                    attr->Unit[u].CurrentCubeMap);
 362          _mesa_copy_texture_object(&attr->Unit[u].SavedRect,
 363                                    attr->Unit[u].CurrentRect);
 364       }
 365       newnode = new_attrib_node( GL_TEXTURE_BIT );
 366       newnode->data = attr;
 367       newnode->next = head;
 368       head = newnode;
 369    }
 370
 371    if (mask & GL_TRANSFORM_BIT) {
 372       struct gl_transform_attrib *attr;
 373       attr = MALLOC_STRUCT( gl_transform_attrib );
 374       MEMCPY( attr, &ctx->Transform, sizeof(struct gl_transform_attrib) );
 375       newnode = new_attrib_node( GL_TRANSFORM_BIT );
 376       newnode->data = attr;
 377       newnode->next = head;
 378       head = newnode;
 379    }
 380
 381    if (mask & GL_VIEWPORT_BIT) {
 382       struct gl_viewport_attrib *attr;
 383       attr = MALLOC_STRUCT( gl_viewport_attrib );
 384       MEMCPY( attr, &ctx->Viewport, sizeof(struct gl_viewport_attrib) );
 385       newnode = new_attrib_node( GL_VIEWPORT_BIT );
 386       newnode->data = attr;
 387       newnode->next = head;
 388       head = newnode;
 389    }
 390
 391    /* GL_ARB_multisample */
 392    if (mask & GL_MULTISAMPLE_BIT_ARB) {
 393       struct gl_multisample_attrib *attr;
 394       attr = MALLOC_STRUCT( gl_multisample_attrib );
 395       MEMCPY( attr, &ctx->Multisample, sizeof(struct gl_multisample_attrib) );
 396       newnode = new_attrib_node( GL_MULTISAMPLE_BIT_ARB );
 397       newnode->data = attr;
 398       newnode->next = head;
 399       head = newnode;
 400    }
 401
 402    ctx->AttribStack[ctx->AttribStackDepth] = head;
 403    ctx->AttribStackDepth++;
 404 }
 405
 406
 407
 408 static void
 409 pop_enable_group(GLcontext *ctx, const struct gl_enable_attrib *enable)
 410 {
 411    GLuint i;
 412
 413 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM)          \
 414         if ((VALUE) != (NEWVALUE)) {                    \
 415            _mesa_set_enable( ctx, ENUM, (NEWVALUE) );   \
 416         }
 417
 418    TEST_AND_UPDATE(ctx->Color.AlphaEnabled, enable->AlphaTest, GL_ALPHA_TEST);
 419    TEST_AND_UPDATE(ctx->Color.BlendEnabled, enable->Blend, GL_BLEND);
 420
 421    for (i=0;i<MAX_CLIP_PLANES;i++) {
 422       const GLuint mask = 1 << i;
 423       if ((ctx->Transform.ClipPlanesEnabled & mask) != (enable->ClipPlanes & mask))
 424           _mesa_set_enable(ctx, (GLenum) (GL_CLIP_PLANE0 + i),
 425                            (GLboolean) ((enable->ClipPlanes & mask) ? GL_TRUE : GL_FALSE));
 426    }
 427
 428    TEST_AND_UPDATE(ctx->Light.ColorMaterialEnabled, enable->ColorMaterial,
 429                    GL_COLOR_MATERIAL);
 430    TEST_AND_UPDATE(ctx->Pixel.ColorTableEnabled, enable->ColorTable,
 431                    GL_COLOR_TABLE);
 432    TEST_AND_UPDATE(ctx->Pixel.PostColorMatrixColorTableEnabled,
 433                    enable->PostColorMatrixColorTable,
 434                    GL_POST_COLOR_MATRIX_COLOR_TABLE);
 435    TEST_AND_UPDATE(ctx->Pixel.PostConvolutionColorTableEnabled,
 436                    enable->PostConvolutionColorTable,
 437                    GL_POST_CONVOLUTION_COLOR_TABLE);
 438    TEST_AND_UPDATE(ctx->Polygon.CullFlag, enable->CullFace, GL_CULL_FACE);
 439    TEST_AND_UPDATE(ctx->Depth.Test, enable->DepthTest, GL_DEPTH_TEST);
 440    TEST_AND_UPDATE(ctx->Color.DitherFlag, enable->Dither, GL_DITHER);
 441    TEST_AND_UPDATE(ctx->Pixel.Convolution1DEnabled, enable->Convolution1D,
 442                    GL_CONVOLUTION_1D);
 443    TEST_AND_UPDATE(ctx->Pixel.Convolution2DEnabled, enable->Convolution2D,
 444                    GL_CONVOLUTION_2D);
 445    TEST_AND_UPDATE(ctx->Pixel.Separable2DEnabled, enable->Separable2D,
 446                    GL_SEPARABLE_2D);
 447    TEST_AND_UPDATE(ctx->Fog.Enabled, enable->Fog, GL_FOG);
 448    TEST_AND_UPDATE(ctx->Light.Enabled, enable->Lighting, GL_LIGHTING);
 449    TEST_AND_UPDATE(ctx->Line.SmoothFlag, enable->LineSmooth, GL_LINE_SMOOTH);
 450    TEST_AND_UPDATE(ctx->Line.StippleFlag, enable->LineStipple,
 451                    GL_LINE_STIPPLE);
 452    TEST_AND_UPDATE(ctx->Color.IndexLogicOpEnabled, enable->IndexLogicOp,
 453                    GL_INDEX_LOGIC_OP);
 454    TEST_AND_UPDATE(ctx->Color.ColorLogicOpEnabled, enable->ColorLogicOp,
 455                    GL_COLOR_LOGIC_OP);
 456
 457    TEST_AND_UPDATE(ctx->Eval.Map1Color4, enable->Map1Color4, GL_MAP1_COLOR_4);
 458    TEST_AND_UPDATE(ctx->Eval.Map1Index, enable->Map1Index, GL_MAP1_INDEX);
 459    TEST_AND_UPDATE(ctx->Eval.Map1Normal, enable->Map1Normal, GL_MAP1_NORMAL);
 460    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord1, enable->Map1TextureCoord1,
 461                    GL_MAP1_TEXTURE_COORD_1);
 462    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord2, enable->Map1TextureCoord2,
 463                    GL_MAP1_TEXTURE_COORD_2);
 464    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord3, enable->Map1TextureCoord3,
 465                    GL_MAP1_TEXTURE_COORD_3);
 466    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord4, enable->Map1TextureCoord4,
 467                    GL_MAP1_TEXTURE_COORD_4);
 468    TEST_AND_UPDATE(ctx->Eval.Map1Vertex3, enable->Map1Vertex3,
 469                    GL_MAP1_VERTEX_3);
 470    TEST_AND_UPDATE(ctx->Eval.Map1Vertex4, enable->Map1Vertex4,
 471                    GL_MAP1_VERTEX_4);
 472    for (i = 0; i < 16; i++) {
 473       TEST_AND_UPDATE(ctx->Eval.Map1Attrib[i], enable->Map1Attrib[i],
 474                       GL_MAP1_VERTEX_ATTRIB0_4_NV + i);
 475    }
 476
 477    TEST_AND_UPDATE(ctx->Eval.Map2Color4, enable->Map2Color4, GL_MAP2_COLOR_4);
 478    TEST_AND_UPDATE(ctx->Eval.Map2Index, enable->Map2Index, GL_MAP2_INDEX);
 479    TEST_AND_UPDATE(ctx->Eval.Map2Normal, enable->Map2Normal, GL_MAP2_NORMAL);
 480    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord1, enable->Map2TextureCoord1,
 481                    GL_MAP2_TEXTURE_COORD_1);
 482    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord2, enable->Map2TextureCoord2,
 483                    GL_MAP2_TEXTURE_COORD_2);
 484    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord3, enable->Map2TextureCoord3,
 485                    GL_MAP2_TEXTURE_COORD_3);
 486    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord4, enable->Map2TextureCoord4,
 487                    GL_MAP2_TEXTURE_COORD_4);
 488    TEST_AND_UPDATE(ctx->Eval.Map2Vertex3, enable->Map2Vertex3,
 489                    GL_MAP2_VERTEX_3);
 490    TEST_AND_UPDATE(ctx->Eval.Map2Vertex4, enable->Map2Vertex4,
 491                    GL_MAP2_VERTEX_4);
 492    for (i = 0; i < 16; i++) {
 493       TEST_AND_UPDATE(ctx->Eval.Map2Attrib[i], enable->Map2Attrib[i],
 494                       GL_MAP2_VERTEX_ATTRIB0_4_NV + i);
 495    }
 496
 497    TEST_AND_UPDATE(ctx->Eval.AutoNormal, enable->AutoNormal, GL_AUTO_NORMAL);
 498    TEST_AND_UPDATE(ctx->Transform.Normalize, enable->Normalize, GL_NORMALIZE);
 499    TEST_AND_UPDATE(ctx->Transform.RescaleNormals, enable->RescaleNormals,
 500                    GL_RESCALE_NORMAL_EXT);
 501    TEST_AND_UPDATE(ctx->Transform.RasterPositionUnclipped,
 502                    enable->RasterPositionUnclipped,
 503                    GL_RASTER_POSITION_UNCLIPPED_IBM);
 504    TEST_AND_UPDATE(ctx->Point.SmoothFlag, enable->PointSmooth,
 505                    GL_POINT_SMOOTH);
 506    if (ctx->Extensions.NV_point_sprite || ctx->Extensions.ARB_point_sprite) {
 507       TEST_AND_UPDATE(ctx->Point.PointSprite, enable->PointSprite,
 508                       GL_POINT_SPRITE_NV);
 509    }
 510    TEST_AND_UPDATE(ctx->Polygon.OffsetPoint, enable->PolygonOffsetPoint,
 511                    GL_POLYGON_OFFSET_POINT);
 512    TEST_AND_UPDATE(ctx->Polygon.OffsetLine, enable->PolygonOffsetLine,
 513                    GL_POLYGON_OFFSET_LINE);
 514    TEST_AND_UPDATE(ctx->Polygon.OffsetFill, enable->PolygonOffsetFill,
 515                    GL_POLYGON_OFFSET_FILL);
 516    TEST_AND_UPDATE(ctx->Polygon.SmoothFlag, enable->PolygonSmooth,
 517                    GL_POLYGON_SMOOTH);
 518    TEST_AND_UPDATE(ctx->Polygon.StippleFlag, enable->PolygonStipple,
 519                    GL_POLYGON_STIPPLE);
 520    TEST_AND_UPDATE(ctx->Scissor.Enabled, enable->Scissor, GL_SCISSOR_TEST);
 521    TEST_AND_UPDATE(ctx->Stencil.Enabled, enable->Stencil, GL_STENCIL_TEST);
 522    if (ctx->Extensions.EXT_stencil_two_side) {
 523       TEST_AND_UPDATE(ctx->Stencil.TestTwoSide, enable->StencilTwoSide, GL_STENCIL_TEST_TWO_SIDE_EXT);
 524    }
 525    TEST_AND_UPDATE(ctx->Multisample.Enabled, enable->MultisampleEnabled,
 526                    GL_MULTISAMPLE_ARB);
 527    TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToCoverage,
 528                    enable->SampleAlphaToCoverage,
 529                    GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);
 530    TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToOne,
 531                    enable->SampleAlphaToOne,
 532                    GL_SAMPLE_ALPHA_TO_ONE_ARB);
 533    TEST_AND_UPDATE(ctx->Multisample.SampleCoverage,
 534                    enable->SampleCoverage,
 535                    GL_SAMPLE_COVERAGE_ARB);
 536    TEST_AND_UPDATE(ctx->Multisample.SampleCoverageInvert,
 537                    enable->SampleCoverageInvert,
 538                    GL_SAMPLE_COVERAGE_INVERT_ARB);
 539    /* GL_ARB_vertex_program, GL_NV_vertex_program */
 540    TEST_AND_UPDATE(ctx->VertexProgram.Enabled,
 541                    enable->VertexProgram,
 542                    GL_VERTEX_PROGRAM_ARB);
 543    TEST_AND_UPDATE(ctx->VertexProgram.PointSizeEnabled,
 544                    enable->VertexProgramPointSize,
 545                    GL_VERTEX_PROGRAM_POINT_SIZE_ARB);
 546    TEST_AND_UPDATE(ctx->VertexProgram.TwoSideEnabled,
 547                    enable->VertexProgramTwoSide,
 548                    GL_VERTEX_PROGRAM_TWO_SIDE_ARB);
 549
 550 #undef TEST_AND_UPDATE
 551
 552    /* texture unit enables */
 553    for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
 554       if (ctx->Texture.Unit[i].Enabled != enable->Texture[i]) {
 555          ctx->Texture.Unit[i].Enabled = enable->Texture[i];
 556          if (ctx->Driver.Enable) {
 557             if (ctx->Driver.ActiveTexture) {
 558                (*ctx->Driver.ActiveTexture)(ctx, i);
 559             }
 560             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_1D,
 561                              (GLboolean) (enable->Texture[i] & TEXTURE_1D_BIT) );
 562             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_2D,
 563                              (GLboolean) (enable->Texture[i] & TEXTURE_2D_BIT) );
 564             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_3D,
 565                              (GLboolean) (enable->Texture[i] & TEXTURE_3D_BIT) );
 566             if (ctx->Extensions.ARB_texture_cube_map)
 567                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_CUBE_MAP_ARB,
 568                           (GLboolean) (enable->Texture[i] & TEXTURE_CUBE_BIT) );
 569             if (ctx->Extensions.NV_texture_rectangle)
 570                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_RECTANGLE_NV,
 571                           (GLboolean) (enable->Texture[i] & TEXTURE_RECT_BIT) );
 572          }
 573       }
 574
 575       if (ctx->Texture.Unit[i].TexGenEnabled != enable->TexGen[i]) {
 576          ctx->Texture.Unit[i].TexGenEnabled = enable->TexGen[i];
 577          if (ctx->Driver.Enable) {
 578             if (ctx->Driver.ActiveTexture) {
 579                (*ctx->Driver.ActiveTexture)(ctx, i);
 580             }
 581             if (enable->TexGen[i] & S_BIT)
 582                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_TRUE);
 583             else
 584                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_FALSE);
 585             if (enable->TexGen[i] & T_BIT)
 586                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_TRUE);
 587             else
 588                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_FALSE);
 589             if (enable->TexGen[i] & R_BIT)
 590                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_TRUE);
 591             else
 592                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_FALSE);
 593             if (enable->TexGen[i] & Q_BIT)
 594                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_TRUE);
 595             else
 596                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_FALSE);
 597          }
 598       }
 599
 600       /* GL_SGI_texture_color_table */
 601       ctx->Texture.Unit[i].ColorTableEnabled = enable->TextureColorTable[i];
 602    }
 603
 604    if (ctx->Driver.ActiveTexture) {
 605       (*ctx->Driver.ActiveTexture)(ctx, ctx->Texture.CurrentUnit);
 606    }
 607 }
 608
 609
 610 static void
 611 pop_texture_group(GLcontext *ctx, const struct gl_texture_attrib *texAttrib)
 612 {
 613    GLuint u;
 614
 615    for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 616       const struct gl_texture_unit *unit = &texAttrib->Unit[u];
 617       GLuint i;
 618
 619       _mesa_ActiveTextureARB(GL_TEXTURE0_ARB + u);
 620       _mesa_set_enable(ctx, GL_TEXTURE_1D,
 621                        (unit->Enabled & TEXTURE_1D_BIT) ? GL_TRUE : GL_FALSE);
 622       _mesa_set_enable(ctx, GL_TEXTURE_2D,
 623                        (unit->Enabled & TEXTURE_2D_BIT) ? GL_TRUE : GL_FALSE);
 624       _mesa_set_enable(ctx, GL_TEXTURE_3D,
 625                        (unit->Enabled & TEXTURE_3D_BIT) ? GL_TRUE : GL_FALSE);
 626       if (ctx->Extensions.ARB_texture_cube_map) {
 627          _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP_ARB,
 628                      (unit->Enabled & TEXTURE_CUBE_BIT) ? GL_TRUE : GL_FALSE);
 629       }
 630       if (ctx->Extensions.NV_texture_rectangle) {
 631          _mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE_NV,
 632                      (unit->Enabled & TEXTURE_RECT_BIT) ? GL_TRUE : GL_FALSE);
 633       }
 634       if (ctx->Extensions.SGI_texture_color_table) {
 635          _mesa_set_enable(ctx, GL_TEXTURE_COLOR_TABLE_SGI,
 636                           unit->ColorTableEnabled);
 637       }
 638       _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, unit->EnvMode);
 639       _mesa_TexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, unit->EnvColor);
 640       _mesa_TexGeni(GL_S, GL_TEXTURE_GEN_MODE, unit->GenModeS);
 641       _mesa_TexGeni(GL_T, GL_TEXTURE_GEN_MODE, unit->GenModeT);
 642       _mesa_TexGeni(GL_R, GL_TEXTURE_GEN_MODE, unit->GenModeR);
 643       _mesa_TexGeni(GL_Q, GL_TEXTURE_GEN_MODE, unit->GenModeQ);
 644       _mesa_TexGenfv(GL_S, GL_OBJECT_PLANE, unit->ObjectPlaneS);
 645       _mesa_TexGenfv(GL_T, GL_OBJECT_PLANE, unit->ObjectPlaneT);
 646       _mesa_TexGenfv(GL_R, GL_OBJECT_PLANE, unit->ObjectPlaneR);
 647       _mesa_TexGenfv(GL_Q, GL_OBJECT_PLANE, unit->ObjectPlaneQ);
 648       /* Eye plane done differently to avoid re-transformation */
 649       {
 650          struct gl_texture_unit *destUnit = &ctx->Texture.Unit[u];
 651          COPY_4FV(destUnit->EyePlaneS, unit->EyePlaneS);
 652          COPY_4FV(destUnit->EyePlaneT, unit->EyePlaneT);
 653          COPY_4FV(destUnit->EyePlaneR, unit->EyePlaneR);
 654          COPY_4FV(destUnit->EyePlaneQ, unit->EyePlaneQ);
 655          if (ctx->Driver.TexGen) {
 656             ctx->Driver.TexGen(ctx, GL_S, GL_EYE_PLANE, unit->EyePlaneS);
 657             ctx->Driver.TexGen(ctx, GL_T, GL_EYE_PLANE, unit->EyePlaneT);
 658             ctx->Driver.TexGen(ctx, GL_R, GL_EYE_PLANE, unit->EyePlaneR);
 659             ctx->Driver.TexGen(ctx, GL_Q, GL_EYE_PLANE, unit->EyePlaneQ);
 660          }
 661       }
 662       _mesa_set_enable(ctx, GL_TEXTURE_GEN_S,
 663                        ((unit->TexGenEnabled & S_BIT) ? GL_TRUE : GL_FALSE));
 664       _mesa_set_enable(ctx, GL_TEXTURE_GEN_T,
 665                        ((unit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE));
 666       _mesa_set_enable(ctx, GL_TEXTURE_GEN_R,
 667                        ((unit->TexGenEnabled & R_BIT) ? GL_TRUE : GL_FALSE));
 668       _mesa_set_enable(ctx, GL_TEXTURE_GEN_Q,
 669                        ((unit->TexGenEnabled & Q_BIT) ? GL_TRUE : GL_FALSE));
 670       if (ctx->Extensions.EXT_texture_lod_bias) {
 671          _mesa_TexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT,
 672                        GL_TEXTURE_LOD_BIAS_EXT, unit->LodBias);
 673       }
 674       if (ctx->Extensions.EXT_texture_env_combine ||
 675           ctx->Extensions.ARB_texture_env_combine) {
 676          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB,
 677                        unit->Combine.ModeRGB);
 678          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA,
 679                        unit->Combine.ModeA);
 680          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB,
 681                        unit->Combine.SourceRGB[0]);
 682          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB,
 683                        unit->Combine.SourceRGB[1]);
 684          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB,
 685                        unit->Combine.SourceRGB[2]);
 686          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA,
 687                        unit->Combine.SourceA[0]);
 688          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA,
 689                        unit->Combine.SourceA[1]);
 690          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA,
 691                        unit->Combine.SourceA[2]);
 692          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB,
 693                        unit->Combine.OperandRGB[0]);
 694          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB,
 695                        unit->Combine.OperandRGB[1]);
 696          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB,
 697                        unit->Combine.OperandRGB[2]);
 698          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA,
 699                        unit->Combine.OperandA[0]);
 700          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA,
 701                        unit->Combine.OperandA[1]);
 702          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA,
 703                        unit->Combine.OperandA[2]);
 704          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE,
 705                        1 << unit->Combine.ScaleShiftRGB);
 706          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE,
 707                        1 << unit->Combine.ScaleShiftA);
 708       }
 709
 710       /* Restore texture object state */
 711       for (i = 0; i < NUM_TEXTURE_TARGETS; i++) {
 712          GLenum target = 0;
 713          const struct gl_texture_object *obj = NULL;
 714          GLfloat bordColor[4];
 715
 716          switch (i) {
 717          case 0:
 718             target = GL_TEXTURE_1D;
 719             obj = &unit->Saved1D;
 720             break;
 721          case 1:
 722             target = GL_TEXTURE_2D;
 723             obj = &unit->Saved2D;
 724             break;
 725          case 2:
 726             target = GL_TEXTURE_3D;
 727             obj = &unit->Saved3D;
 728             break;
 729          case 3:
 730             if (!ctx->Extensions.ARB_texture_cube_map)
 731                continue;
 732             target = GL_TEXTURE_CUBE_MAP_ARB;
 733             obj = &unit->SavedCubeMap;
 734             break;
 735          case 4:
 736             if (!ctx->Extensions.NV_texture_rectangle)
 737                continue;
 738             target = GL_TEXTURE_RECTANGLE_NV;
 739             obj = &unit->SavedRect;
 740             break;
 741          default:
 742             ; /* silence warnings */
 743          }
 744
 745          _mesa_BindTexture(target, obj->Name);
 746
 747          bordColor[0] = CHAN_TO_FLOAT(obj->BorderColor[0]);
 748          bordColor[1] = CHAN_TO_FLOAT(obj->BorderColor[1]);
 749          bordColor[2] = CHAN_TO_FLOAT(obj->BorderColor[2]);
 750          bordColor[3] = CHAN_TO_FLOAT(obj->BorderColor[3]);
 751
 752          _mesa_TexParameterf(target, GL_TEXTURE_PRIORITY, obj->Priority);
 753          _mesa_TexParameterfv(target, GL_TEXTURE_BORDER_COLOR, bordColor);
 754          _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, obj->WrapS);
 755          _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, obj->WrapT);
 756          _mesa_TexParameteri(target, GL_TEXTURE_WRAP_R, obj->WrapR);
 757          _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, obj->MinFilter);
 758          _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, obj->MagFilter);
 759          _mesa_TexParameterf(target, GL_TEXTURE_MIN_LOD, obj->MinLod);
 760          _mesa_TexParameterf(target, GL_TEXTURE_MAX_LOD, obj->MaxLod);
 761          _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, obj->BaseLevel);
 762          _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, obj->MaxLevel);
 763          if (ctx->Extensions.EXT_texture_filter_anisotropic) {
 764             _mesa_TexParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT,
 765                                 obj->MaxAnisotropy);
 766          }
 767          if (ctx->Extensions.SGIX_shadow) {
 768             _mesa_TexParameteri(target, GL_TEXTURE_COMPARE_SGIX,
 769                                 obj->CompareFlag);
 770             _mesa_TexParameteri(target, GL_TEXTURE_COMPARE_OPERATOR_SGIX,
 771                                 obj->CompareOperator);
 772          }
 773          if (ctx->Extensions.SGIX_shadow_ambient) {
 774             _mesa_TexParameterf(target, GL_SHADOW_AMBIENT_SGIX,
 775                                 obj->ShadowAmbient);
 776          }
 777
 778       }
 779    }
 780    _mesa_ActiveTextureARB(GL_TEXTURE0_ARB
 781                           + texAttrib->CurrentUnit);
 782
 783    /* "un-bump" the texture object reference counts.  We did that so they
 784     * wouldn't inadvertantly get deleted while they were still referenced
 785     * inside the attribute state stack.
 786     */
 787    for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 788       ctx->Texture.Unit[u].Current1D->RefCount--;
 789       ctx->Texture.Unit[u].Current2D->RefCount--;
 790       ctx->Texture.Unit[u].Current3D->RefCount--;
 791       ctx->Texture.Unit[u].CurrentCubeMap->RefCount--;
 792       ctx->Texture.Unit[u].CurrentRect->RefCount--;
 793    }
 794 }
 795
 796
 797 /*
 798  * This function is kind of long just because we have to call a lot
 799  * of device driver functions to update device driver state.
 800  *
 801  * XXX As it is now, most of the pop-code calls immediate-mode Mesa functions
 802  * in order to restore GL state.  This isn't terribly efficient but it
 803  * ensures that dirty flags and any derived state gets updated correctly.
 804  * We could at least check if the value to restore equals the current value
 805  * and then skip the Mesa call.
 806  */
 807 void GLAPIENTRY
 808 _mesa_PopAttrib(void)
 809 {
 810    struct gl_attrib_node *attr, *next;
 811    GET_CURRENT_CONTEXT(ctx);
 812    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 813
 814    if (ctx->AttribStackDepth == 0) {
 815       _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopAttrib" );
 816       return;
 817    }
 818
 819    ctx->AttribStackDepth--;
 820    attr = ctx->AttribStack[ctx->AttribStackDepth];
 821
 822    while (attr) {
 823
 824       if (MESA_VERBOSE & VERBOSE_API) {
 825          _mesa_debug(ctx, "glPopAttrib %s\n",
 826                      _mesa_lookup_enum_by_nr(attr->kind));
 827       }
 828
 829       switch (attr->kind) {
 830          case GL_ACCUM_BUFFER_BIT:
 831             {
 832                const struct gl_accum_attrib *accum;
 833                accum = (const struct gl_accum_attrib *) attr->data;
 834                _mesa_ClearAccum(accum->ClearColor[0],
 835                                 accum->ClearColor[1],
 836                                 accum->ClearColor[2],
 837                                 accum->ClearColor[3]);
 838             }
 839             break;
 840          case GL_COLOR_BUFFER_BIT:
 841             {
 842                const struct gl_colorbuffer_attrib *color;
 843                color = (const struct gl_colorbuffer_attrib *) attr->data;
 844                _mesa_ClearIndex((GLfloat) color->ClearIndex);
 845                _mesa_ClearColor(color->ClearColor[0],
 846                                 color->ClearColor[1],
 847                                 color->ClearColor[2],
 848                                 color->ClearColor[3]);
 849                _mesa_IndexMask(color->IndexMask);
 850                _mesa_ColorMask((GLboolean) (color->ColorMask[0] != 0),
 851                                (GLboolean) (color->ColorMask[1] != 0),
 852                                (GLboolean) (color->ColorMask[2] != 0),
 853                                (GLboolean) (color->ColorMask[3] != 0));
 854                {
 855                   /* Need to determine if more than one color output is
 856                    * specified.  If so, call glDrawBuffersARB, else call
 857                    * glDrawBuffer().  This is a subtle, but essential point
 858                    * since GL_FRONT (for example) is illegal for the former
 859                    * function, but legal for the later.
 860                    */
 861                   GLboolean multipleBuffers = GL_FALSE;
 862                   if (ctx->Extensions.ARB_draw_buffers) {
 863                      GLuint i;
 864                      for (i = 1; i < ctx->Const.MaxDrawBuffers; i++) {
 865                         if (color->DrawBuffer[i] != GL_NONE) {
 866                            multipleBuffers = GL_TRUE;
 867                            break;
 868                         }
 869                      }
 870                   }
 871                   /* Call the API_level functions, not _mesa_drawbuffers()
 872                    * since we need to do error checking on the pop'd
 873                    * GL_DRAW_BUFFER.
 874                    * Ex: if GL_FRONT were pushed, but we're popping with a
 875                    * user FBO bound, GL_FRONT will be illegal and we'll need
 876                    * to record that error.  Per OpenGL ARB decision.
 877                    */
 878                   if (multipleBuffers)
 879                      _mesa_DrawBuffersARB(ctx->Const.MaxDrawBuffers,
 880                                           color->DrawBuffer);
 881                   else
 882                      _mesa_DrawBuffer(color->DrawBuffer[0]);
 883                }
 884                _mesa_set_enable(ctx, GL_ALPHA_TEST, color->AlphaEnabled);
 885                _mesa_AlphaFunc(color->AlphaFunc, color->AlphaRef);
 886                _mesa_set_enable(ctx, GL_BLEND, color->BlendEnabled);
 887                _mesa_BlendFuncSeparateEXT(color->BlendSrcRGB,
 888                                           color->BlendDstRGB,
 889                                           color->BlendSrcA,
 890                                           color->BlendDstA);
 891                /* This special case is because glBlendEquationSeparateEXT
 892                 * cannot take GL_LOGIC_OP as a parameter.
 893                 */
 894                if ( color->BlendEquationRGB == color->BlendEquationA ) {
 895                   _mesa_BlendEquation(color->BlendEquationRGB);
 896                }
 897                else {
 898                   _mesa_BlendEquationSeparateEXT(color->BlendEquationRGB,
 899                                                  color->BlendEquationA);
 900                }
 901                _mesa_BlendColor(color->BlendColor[0],
 902                                 color->BlendColor[1],
 903                                 color->BlendColor[2],
 904                                 color->BlendColor[3]);
 905                _mesa_LogicOp(color->LogicOp);
 906                _mesa_set_enable(ctx, GL_COLOR_LOGIC_OP,
 907                                 color->ColorLogicOpEnabled);
 908                _mesa_set_enable(ctx, GL_INDEX_LOGIC_OP,
 909                                 color->IndexLogicOpEnabled);
 910                _mesa_set_enable(ctx, GL_DITHER, color->DitherFlag);
 911             }
 912             break;
 913          case GL_CURRENT_BIT:
 914             FLUSH_CURRENT( ctx, 0 );
 915             MEMCPY( &ctx->Current, attr->data,
 916                     sizeof(struct gl_current_attrib) );
 917             break;
 918          case GL_DEPTH_BUFFER_BIT:
 919             {
 920                const struct gl_depthbuffer_attrib *depth;
 921                depth = (const struct gl_depthbuffer_attrib *) attr->data;
 922                _mesa_DepthFunc(depth->Func);
 923                _mesa_ClearDepth(depth->Clear);
 924                _mesa_set_enable(ctx, GL_DEPTH_TEST, depth->Test);
 925                _mesa_DepthMask(depth->Mask);
 926             }
 927             break;
 928          case GL_ENABLE_BIT:
 929             {
 930                const struct gl_enable_attrib *enable;
 931                enable = (const struct gl_enable_attrib *) attr->data;
 932                pop_enable_group(ctx, enable);
 933                ctx->NewState |= _NEW_ALL;
 934             }
 935             break;
 936          case GL_EVAL_BIT:
 937             MEMCPY( &ctx->Eval, attr->data, sizeof(struct gl_eval_attrib) );
 938             ctx->NewState |= _NEW_EVAL;
 939             break;
 940          case GL_FOG_BIT:
 941             {
 942                const struct gl_fog_attrib *fog;
 943                fog = (const struct gl_fog_attrib *) attr->data;
 944                _mesa_set_enable(ctx, GL_FOG, fog->Enabled);
 945                _mesa_Fogfv(GL_FOG_COLOR, fog->Color);
 946                _mesa_Fogf(GL_FOG_DENSITY, fog->Density);
 947                _mesa_Fogf(GL_FOG_START, fog->Start);
 948                _mesa_Fogf(GL_FOG_END, fog->End);
 949                _mesa_Fogf(GL_FOG_INDEX, fog->Index);
 950                _mesa_Fogi(GL_FOG_MODE, fog->Mode);
 951             }
 952             break;
 953          case GL_HINT_BIT:
 954             {
 955                const struct gl_hint_attrib *hint;
 956                hint = (const struct gl_hint_attrib *) attr->data;
 957                _mesa_Hint(GL_PERSPECTIVE_CORRECTION_HINT,
 958                           hint->PerspectiveCorrection );
 959                _mesa_Hint(GL_POINT_SMOOTH_HINT, hint->PointSmooth);
 960                _mesa_Hint(GL_LINE_SMOOTH_HINT, hint->LineSmooth);
 961                _mesa_Hint(GL_POLYGON_SMOOTH_HINT, hint->PolygonSmooth);
 962                _mesa_Hint(GL_FOG_HINT, hint->Fog);
 963                _mesa_Hint(GL_CLIP_VOLUME_CLIPPING_HINT_EXT,
 964                           hint->ClipVolumeClipping);
 965                if (ctx->Extensions.ARB_texture_compression)
 966                   _mesa_Hint(GL_TEXTURE_COMPRESSION_HINT_ARB,
 967                              hint->TextureCompression);
 968             }
 969             break;
 970          case GL_LIGHTING_BIT:
 971             {
 972                GLuint i;
 973                const struct gl_light_attrib *light;
 974                light = (const struct gl_light_attrib *) attr->data;
 975                /* lighting enable */
 976                _mesa_set_enable(ctx, GL_LIGHTING, light->Enabled);
 977                /* per-light state */
 978                if (_math_matrix_is_dirty(ctx->ModelviewMatrixStack.Top))
 979                   _math_matrix_analyse( ctx->ModelviewMatrixStack.Top );
 980
 981                for (i = 0; i < ctx->Const.MaxLights; i++) {
 982                   const struct gl_light *l = &light->Light[i];
 983                   _mesa_set_enable(ctx, GL_LIGHT0 + i, l->Enabled);
 984                   _mesa_light(ctx, i, GL_AMBIENT, l->Ambient);
 985                   _mesa_light(ctx, i, GL_DIFFUSE, l->Diffuse);
 986                   _mesa_light(ctx, i, GL_SPECULAR, l->Specular );
 987                   _mesa_light(ctx, i, GL_POSITION, l->EyePosition);
 988                   _mesa_light(ctx, i, GL_SPOT_DIRECTION, l->EyeDirection);
 989                   _mesa_light(ctx, i, GL_SPOT_EXPONENT, &l->SpotExponent);
 990                   _mesa_light(ctx, i, GL_SPOT_CUTOFF, &l->SpotCutoff);
 991                   _mesa_light(ctx, i, GL_CONSTANT_ATTENUATION,
 992                               &l->ConstantAttenuation);
 993                   _mesa_light(ctx, i, GL_LINEAR_ATTENUATION,
 994                               &l->LinearAttenuation);
 995                   _mesa_light(ctx, i, GL_QUADRATIC_ATTENUATION,
 996                               &l->QuadraticAttenuation);
 997                }
 998                /* light model */
 999                _mesa_LightModelfv(GL_LIGHT_MODEL_AMBIENT,
1000                                   light->Model.Ambient);
1001                _mesa_LightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER,
1002                                  (GLfloat) light->Model.LocalViewer);
1003                _mesa_LightModelf(GL_LIGHT_MODEL_TWO_SIDE,
1004                                  (GLfloat) light->Model.TwoSide);
1005                _mesa_LightModelf(GL_LIGHT_MODEL_COLOR_CONTROL,
1006                                  (GLfloat) light->Model.ColorControl);
1007                /* materials */
1008                MEMCPY(&ctx->Light.Material, &light->Material,
1009                       sizeof(struct gl_material));
1010                /* shade model */
1011                _mesa_ShadeModel(light->ShadeModel);
1012                /* color material */
1013                _mesa_ColorMaterial(light->ColorMaterialFace,
1014                                    light->ColorMaterialMode);
1015                _mesa_set_enable(ctx, GL_COLOR_MATERIAL,
1016                                 light->ColorMaterialEnabled);
1017             }
1018             break;
1019          case GL_LINE_BIT:
1020             {
1021                const struct gl_line_attrib *line;
1022                line = (const struct gl_line_attrib *) attr->data;
1023                _mesa_set_enable(ctx, GL_LINE_SMOOTH, line->SmoothFlag);
1024                _mesa_set_enable(ctx, GL_LINE_STIPPLE, line->StippleFlag);
1025                _mesa_LineStipple(line->StippleFactor, line->StipplePattern);
1026                _mesa_LineWidth(line->Width);
1027             }
1028             break;
1029          case GL_LIST_BIT:
1030             MEMCPY( &ctx->List, attr->data, sizeof(struct gl_list_attrib) );
1031             break;
1032          case GL_PIXEL_MODE_BIT:
1033             MEMCPY( &ctx->Pixel, attr->data, sizeof(struct gl_pixel_attrib) );
1034             /* XXX what other pixel state needs to be set by function calls? */
1035             _mesa_ReadBuffer(ctx->Pixel.ReadBuffer);
1036             ctx->NewState |= _NEW_PIXEL;
1037             break;
1038          case GL_POINT_BIT:
1039             {
1040                const struct gl_point_attrib *point;
1041                point = (const struct gl_point_attrib *) attr->data;
1042                _mesa_PointSize(point->Size);
1043                _mesa_set_enable(ctx, GL_POINT_SMOOTH, point->SmoothFlag);
1044                if (ctx->Extensions.EXT_point_parameters) {
1045                   _mesa_PointParameterfvEXT(GL_DISTANCE_ATTENUATION_EXT,
1046                                             point->Params);
1047                   _mesa_PointParameterfEXT(GL_POINT_SIZE_MIN_EXT,
1048                                            point->MinSize);
1049                   _mesa_PointParameterfEXT(GL_POINT_SIZE_MAX_EXT,
1050                                            point->MaxSize);
1051                   _mesa_PointParameterfEXT(GL_POINT_FADE_THRESHOLD_SIZE_EXT,
1052                                            point->Threshold);
1053                }
1054                if (ctx->Extensions.NV_point_sprite
1055                    || ctx->Extensions.ARB_point_sprite) {
1056                   GLuint u;
1057                   for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
1058                      _mesa_TexEnvi(GL_POINT_SPRITE_NV, GL_COORD_REPLACE_NV,
1059                                    (GLint) point->CoordReplace[u]);
1060                   }
1061                   _mesa_set_enable(ctx, GL_POINT_SPRITE_NV,point->PointSprite);
1062                   _mesa_PointParameteriNV(GL_POINT_SPRITE_R_MODE_NV,
1063                                           ctx->Point.SpriteRMode);
1064                   _mesa_PointParameterfEXT(GL_POINT_SPRITE_COORD_ORIGIN,
1065                                            (GLfloat)ctx->Point.SpriteOrigin);
1066                }
1067             }
1068             break;
1069          case GL_POLYGON_BIT:
1070             {
1071                const struct gl_polygon_attrib *polygon;
1072                polygon = (const struct gl_polygon_attrib *) attr->data;
1073                _mesa_CullFace(polygon->CullFaceMode);
1074                _mesa_FrontFace(polygon->FrontFace);
1075                _mesa_PolygonMode(GL_FRONT, polygon->FrontMode);
1076                _mesa_PolygonMode(GL_BACK, polygon->BackMode);
1077                _mesa_PolygonOffset(polygon->OffsetFactor,
1078                                    polygon->OffsetUnits);
1079                _mesa_set_enable(ctx, GL_POLYGON_SMOOTH, polygon->SmoothFlag);
1080                _mesa_set_enable(ctx, GL_POLYGON_STIPPLE, polygon->StippleFlag);
1081                _mesa_set_enable(ctx, GL_CULL_FACE, polygon->CullFlag);
1082                _mesa_set_enable(ctx, GL_POLYGON_OFFSET_POINT,
1083                                 polygon->OffsetPoint);
1084                _mesa_set_enable(ctx, GL_POLYGON_OFFSET_LINE,
1085                                 polygon->OffsetLine);
1086                _mesa_set_enable(ctx, GL_POLYGON_OFFSET_FILL,
1087                                 polygon->OffsetFill);
1088             }
1089             break;
1090          case GL_POLYGON_STIPPLE_BIT:
1091             MEMCPY( ctx->PolygonStipple, attr->data, 32*sizeof(GLuint) );
1092             ctx->NewState |= _NEW_POLYGONSTIPPLE;
1093             if (ctx->Driver.PolygonStipple)
1094                ctx->Driver.PolygonStipple( ctx, (const GLubyte *) attr->data );
1095             break;
1096          case GL_SCISSOR_BIT:
1097             {
1098                const struct gl_scissor_attrib *scissor;
1099                scissor = (const struct gl_scissor_attrib *) attr->data;
1100                _mesa_Scissor(scissor->X, scissor->Y,
1101                              scissor->Width, scissor->Height);
1102                _mesa_set_enable(ctx, GL_SCISSOR_TEST, scissor->Enabled);
1103             }
1104             break;
1105          case GL_STENCIL_BUFFER_BIT:
1106             {
1107                const struct gl_stencil_attrib *stencil;
1108                stencil = (const struct gl_stencil_attrib *) attr->data;
1109                _mesa_set_enable(ctx, GL_STENCIL_TEST, stencil->Enabled);
1110                _mesa_ClearStencil(stencil->Clear);
1111                if (ctx->Extensions.EXT_stencil_two_side) {
1112                   _mesa_set_enable(ctx, GL_STENCIL_TEST_TWO_SIDE_EXT,
1113                                    stencil->TestTwoSide);
1114                   _mesa_ActiveStencilFaceEXT(stencil->ActiveFace
1115                                              ? GL_BACK : GL_FRONT);
1116                }
1117                /* front state */
1118                _mesa_StencilFuncSeparate(GL_FRONT,
1119                                          stencil->Function[0],
1120                                          stencil->Ref[0],
1121                                          stencil->ValueMask[0]);
1122                _mesa_StencilMaskSeparate(GL_FRONT, stencil->WriteMask[0]);
1123                _mesa_StencilOpSeparate(GL_FRONT, stencil->FailFunc[0],
1124                                        stencil->ZFailFunc[0],
1125                                        stencil->ZPassFunc[0]);
1126                /* back state */
1127                _mesa_StencilFuncSeparate(GL_BACK,
1128                                          stencil->Function[1],
1129                                          stencil->Ref[1],
1130                                          stencil->ValueMask[1]);
1131                _mesa_StencilMaskSeparate(GL_BACK, stencil->WriteMask[1]);
1132                _mesa_StencilOpSeparate(GL_BACK, stencil->FailFunc[1],
1133                                        stencil->ZFailFunc[1],
1134                                        stencil->ZPassFunc[1]);
1135             }
1136             break;
1137          case GL_TRANSFORM_BIT:
1138             {
1139                GLuint i;
1140                const struct gl_transform_attrib *xform;
1141                xform = (const struct gl_transform_attrib *) attr->data;
1142                _mesa_MatrixMode(xform->MatrixMode);
1143                if (_math_matrix_is_dirty(ctx->ProjectionMatrixStack.Top))
1144                   _math_matrix_analyse( ctx->ProjectionMatrixStack.Top );
1145
1146                /* restore clip planes */
1147                for (i = 0; i < MAX_CLIP_PLANES; i++) {
1148                   const GLuint mask = 1 << 1;
1149                   const GLfloat *eyePlane = xform->EyeUserPlane[i];
1150                   COPY_4V(ctx->Transform.EyeUserPlane[i], eyePlane);
1151                   if (xform->ClipPlanesEnabled & mask) {
1152                      _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_TRUE);
1153                   }
1154                   else {
1155                      _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_FALSE);
1156                   }
1157                   if (ctx->Driver.ClipPlane)
1158                      ctx->Driver.ClipPlane( ctx, GL_CLIP_PLANE0 + i, eyePlane );
1159                }
1160
1161                /* normalize/rescale */
1162                if (xform->Normalize != ctx->Transform.Normalize)
1163                   _mesa_set_enable(ctx, GL_NORMALIZE,ctx->Transform.Normalize);
1164                if (xform->RescaleNormals != ctx->Transform.RescaleNormals)
1165                   _mesa_set_enable(ctx, GL_RESCALE_NORMAL_EXT,
1166                                    ctx->Transform.RescaleNormals);
1167             }
1168             break;
1169          case GL_TEXTURE_BIT:
1170             /* Take care of texture object reference counters */
1171             {
1172                const struct gl_texture_attrib *texture;
1173                texture = (const struct gl_texture_attrib *) attr->data;
1174                pop_texture_group(ctx, texture);
1175                ctx->NewState |= _NEW_TEXTURE;
1176             }
1177             break;
1178          case GL_VIEWPORT_BIT:
1179             {
1180                const struct gl_viewport_attrib *vp;
1181                vp = (const struct gl_viewport_attrib *) attr->data;
1182                _mesa_Viewport(vp->X, vp->Y, vp->Width, vp->Height);
1183                _mesa_DepthRange(vp->Near, vp->Far);
1184             }
1185             break;
1186          case GL_MULTISAMPLE_BIT_ARB:
1187             {
1188                const struct gl_multisample_attrib *ms;
1189                ms = (const struct gl_multisample_attrib *) attr->data;
1190                _mesa_SampleCoverageARB(ms->SampleCoverageValue,
1191                                        ms->SampleCoverageInvert);
1192             }
1193             break;
1194
1195          default:
1196             _mesa_problem( ctx, "Bad attrib flag in PopAttrib");
1197             break;
1198       }
1199
1200       next = attr->next;
1201       FREE( attr->data );
1202       FREE( attr );
1203       attr = next;
1204    }
1205 }
1206
1207
1208 /**
1209  * Helper for incrementing/decrementing vertex buffer object reference
1210  * counts when pushing/popping the GL_CLIENT_VERTEX_ARRAY_BIT attribute group.
1211  */
1212 static void
1213 adjust_buffer_object_ref_counts(struct gl_array_attrib *array, GLint step)
1214 {
1215    GLuint i;
1216    array->ArrayObj->Vertex.BufferObj->RefCount += step;
1217    array->ArrayObj->Normal.BufferObj->RefCount += step;
1218    array->ArrayObj->Color.BufferObj->RefCount += step;
1219    array->ArrayObj->SecondaryColor.BufferObj->RefCount += step;
1220    array->ArrayObj->FogCoord.BufferObj->RefCount += step;
1221    array->ArrayObj->Index.BufferObj->RefCount += step;
1222    array->ArrayObj->EdgeFlag.BufferObj->RefCount += step;
1223    for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++)
1224       array->ArrayObj->TexCoord[i].BufferObj->RefCount += step;
1225    for (i = 0; i < VERT_ATTRIB_MAX; i++)
1226       array->ArrayObj->VertexAttrib[i].BufferObj->RefCount += step;
1227
1228    array->ArrayBufferObj->RefCount += step;
1229    array->ElementArrayBufferObj->RefCount += step;
1230 }
1231
1232
1233 #define GL_CLIENT_PACK_BIT (1<<20)
1234 #define GL_CLIENT_UNPACK_BIT (1<<21)
1235
1236
1237 void GLAPIENTRY
1238 _mesa_PushClientAttrib(GLbitfield mask)
1239 {
1240    struct gl_attrib_node *newnode;
1241    struct gl_attrib_node *head;
1242
1243    GET_CURRENT_CONTEXT(ctx);
1244    ASSERT_OUTSIDE_BEGIN_END(ctx);
1245
1246    if (ctx->ClientAttribStackDepth >= MAX_CLIENT_ATTRIB_STACK_DEPTH) {
1247       _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushClientAttrib" );
1248       return;
1249    }
1250
1251    /* Build linked list of attribute nodes which save all attribute */
1252    /* groups specified by the mask. */
1253    head = NULL;
1254
1255    if (mask & GL_CLIENT_PIXEL_STORE_BIT) {
1256       struct gl_pixelstore_attrib *attr;
1257 #if FEATURE_EXT_pixel_buffer_object
1258       ctx->Pack.BufferObj->RefCount++;
1259       ctx->Unpack.BufferObj->RefCount++;
1260 #endif
1261       /* packing attribs */
1262       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
1263       MEMCPY( attr, &ctx->Pack, sizeof(struct gl_pixelstore_attrib) );
1264       newnode = new_attrib_node( GL_CLIENT_PACK_BIT );
1265       newnode->data = attr;
1266       newnode->next = head;
1267       head = newnode;
1268       /* unpacking attribs */
1269       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
1270       MEMCPY( attr, &ctx->Unpack, sizeof(struct gl_pixelstore_attrib) );
1271       newnode = new_attrib_node( GL_CLIENT_UNPACK_BIT );
1272       newnode->data = attr;
1273       newnode->next = head;
1274       head = newnode;
1275    }
1276    if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) {
1277       struct gl_array_attrib *attr;
1278       struct gl_array_object *obj;
1279
1280       attr = MALLOC_STRUCT( gl_array_attrib );
1281       obj = MALLOC_STRUCT( gl_array_object );
1282
1283       MEMCPY( attr, &ctx->Array, sizeof(struct gl_array_attrib) );
1284       MEMCPY( obj, ctx->Array.ArrayObj, sizeof(struct gl_array_object) );
1285
1286       attr->ArrayObj = obj;
1287
1288       newnode = new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT );
1289       newnode->data = attr;
1290       newnode->next = head;
1291       head = newnode;
1292       /* bump reference counts on buffer objects */
1293       adjust_buffer_object_ref_counts(&ctx->Array, 1);
1294    }
1295
1296    ctx->ClientAttribStack[ctx->ClientAttribStackDepth] = head;
1297    ctx->ClientAttribStackDepth++;
1298 }
1299
1300
1301
1302
1303 void GLAPIENTRY
1304 _mesa_PopClientAttrib(void)
1305 {
1306    struct gl_attrib_node *attr, *next;
1307
1308    GET_CURRENT_CONTEXT(ctx);
1309    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1310
1311    if (ctx->ClientAttribStackDepth == 0) {
1312       _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopClientAttrib" );
1313       return;
1314    }
1315
1316    ctx->ClientAttribStackDepth--;
1317    attr = ctx->ClientAttribStack[ctx->ClientAttribStackDepth];
1318
1319    while (attr) {
1320       switch (attr->kind) {
1321          case GL_CLIENT_PACK_BIT:
1322 #if FEATURE_EXT_pixel_buffer_object
1323             ctx->Pack.BufferObj->RefCount--;
1324             if (ctx->Pack.BufferObj->RefCount <= 0) {
1325                _mesa_remove_buffer_object( ctx, ctx->Pack.BufferObj );
1326                (*ctx->Driver.DeleteBuffer)( ctx, ctx->Pack.BufferObj );
1327             }
1328 #endif
1329             MEMCPY( &ctx->Pack, attr->data,
1330                     sizeof(struct gl_pixelstore_attrib) );
1331             ctx->NewState |= _NEW_PACKUNPACK;
1332             break;
1333          case GL_CLIENT_UNPACK_BIT:
1334 #if FEATURE_EXT_pixel_buffer_object
1335             ctx->Unpack.BufferObj->RefCount--;
1336             if (ctx->Unpack.BufferObj->RefCount <= 0) {
1337                _mesa_remove_buffer_object( ctx, ctx->Unpack.BufferObj );
1338                (*ctx->Driver.DeleteBuffer)( ctx, ctx->Unpack.BufferObj );
1339             }
1340 #endif
1341             MEMCPY( &ctx->Unpack, attr->data,
1342                     sizeof(struct gl_pixelstore_attrib) );
1343             ctx->NewState |= _NEW_PACKUNPACK;
1344             break;
1345          case GL_CLIENT_VERTEX_ARRAY_BIT: {
1346             struct gl_array_attrib * data =
1347               (struct gl_array_attrib *) attr->data;
1348
1349             adjust_buffer_object_ref_counts(&ctx->Array, -1);
1350
1351             ctx->Array.ActiveTexture = data->ActiveTexture;
1352             ctx->Array.LockFirst = data->LockFirst;
1353             ctx->Array.LockCount = data->LockCount;
1354
1355             _mesa_BindVertexArrayAPPLE( data->ArrayObj->Name );
1356
1357             MEMCPY( ctx->Array.ArrayObj, data->ArrayObj,
1358                     sizeof( struct gl_array_object ) );
1359
1360             FREE( data->ArrayObj );
1361
1362             /* FIXME: Should some bits in ctx->Array->NewState also be set
1363              * FIXME: here?  It seems like it should be set to inclusive-or
1364              * FIXME: of the old ArrayObj->_Enabled and the new _Enabled.
1365              */
1366
1367             ctx->NewState |= _NEW_ARRAY;
1368             break;
1369          }
1370          default:
1371             _mesa_problem( ctx, "Bad attrib flag in PopClientAttrib");
1372             break;
1373       }
1374
1375       next = attr->next;
1376       FREE( attr->data );
1377       FREE( attr );
1378       attr = next;
1379    }
1380 }
1381
1382
1383 void _mesa_init_attrib( GLcontext *ctx )
1384 {
1385    /* Renderer and client attribute stacks */
1386    ctx->AttribStackDepth = 0;
1387    ctx->ClientAttribStackDepth = 0;
1388 }