src/mesa/main/attrib.c

   1 /* $Id: attrib.c,v 1.31 2000/10/30 13:31:59 keithw Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.5
   6  *
   7  * Copyright (C) 1999-2000  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27
  28 #ifdef PC_HEADER
  29 #include "all.h"
  30 #else
  31 #include "glheader.h"
  32 #include "attrib.h"
  33 #include "buffers.h"
  34 #include "context.h"
  35 #include "enable.h"
  36 #include "enums.h"
  37 #include "matrix.h"
  38 #include "mem.h"
  39 #include "simple_list.h"
  40 #include "texstate.h"
  41 #include "types.h"
  42 #endif
  43
  44
  45
  46
  47 /*
  48  * Allocate a new attribute state node.  These nodes have a
  49  * "kind" value and a pointer to a struct of state data.
  50  */
  51 static struct gl_attrib_node *
  52 new_attrib_node( GLbitfield kind )
  53 {
  54    struct gl_attrib_node *an = MALLOC_STRUCT(gl_attrib_node);
  55    if (an) {
  56       an->kind = kind;
  57    }
  58    return an;
  59 }
  60
  61
  62
  63 /*
  64  * Copy texture object state from one texture object to another.
  65  */
  66 static void
  67 copy_texobj_state( struct gl_texture_object *dest,
  68                    const struct gl_texture_object *src )
  69 {
  70    /*
  71    dest->Name = src->Name;
  72    dest->Dimensions = src->Dimensions;
  73    */
  74    dest->Priority = src->Priority;
  75    dest->BorderColor[0] = src->BorderColor[0];
  76    dest->BorderColor[1] = src->BorderColor[1];
  77    dest->BorderColor[2] = src->BorderColor[2];
  78    dest->BorderColor[3] = src->BorderColor[3];
  79    dest->WrapS = src->WrapS;
  80    dest->WrapT = src->WrapT;
  81    dest->WrapR = src->WrapR;
  82    dest->MinFilter = src->MinFilter;
  83    dest->MagFilter = src->MagFilter;
  84    dest->MinLod = src->MinLod;
  85    dest->MaxLod = src->MaxLod;
  86    dest->BaseLevel = src->BaseLevel;
  87    dest->MaxLevel = src->MaxLevel;
  88    dest->P = src->P;
  89    dest->M = src->M;
  90    dest->MinMagThresh = src->MinMagThresh;
  91    dest->Palette = src->Palette;
  92    dest->Complete = src->Complete;
  93    dest->SampleFunc = src->SampleFunc;
  94 }
  95
  96
  97
  98 void
  99 _mesa_PushAttrib(GLbitfield mask)
 100 {
 101    struct gl_attrib_node *newnode;
 102    struct gl_attrib_node *head;
 103
 104    GET_CURRENT_CONTEXT(ctx);
 105    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPushAttrib");
 106
 107    if (MESA_VERBOSE&VERBOSE_API)
 108       fprintf(stderr, "glPushAttrib %x\n", (int)mask);
 109
 110    if (ctx->AttribStackDepth>=MAX_ATTRIB_STACK_DEPTH) {
 111       gl_error( ctx, GL_STACK_OVERFLOW, "glPushAttrib" );
 112       return;
 113    }
 114
 115    /* Build linked list of attribute nodes which save all attribute */
 116    /* groups specified by the mask. */
 117    head = NULL;
 118
 119    if (mask & GL_ACCUM_BUFFER_BIT) {
 120       struct gl_accum_attrib *attr;
 121       attr = MALLOC_STRUCT( gl_accum_attrib );
 122       MEMCPY( attr, &ctx->Accum, sizeof(struct gl_accum_attrib) );
 123       newnode = new_attrib_node( GL_ACCUM_BUFFER_BIT );
 124       newnode->data = attr;
 125       newnode->next = head;
 126       head = newnode;
 127    }
 128
 129    if (mask & GL_COLOR_BUFFER_BIT) {
 130       struct gl_colorbuffer_attrib *attr;
 131       attr = MALLOC_STRUCT( gl_colorbuffer_attrib );
 132       MEMCPY( attr, &ctx->Color, sizeof(struct gl_colorbuffer_attrib) );
 133       newnode = new_attrib_node( GL_COLOR_BUFFER_BIT );
 134       newnode->data = attr;
 135       newnode->next = head;
 136       head = newnode;
 137    }
 138
 139    if (mask & GL_CURRENT_BIT) {
 140       struct gl_current_attrib *attr;
 141       attr = MALLOC_STRUCT( gl_current_attrib );
 142       MEMCPY( attr, &ctx->Current, sizeof(struct gl_current_attrib) );
 143       newnode = new_attrib_node( GL_CURRENT_BIT );
 144       newnode->data = attr;
 145       newnode->next = head;
 146       head = newnode;
 147    }
 148
 149    if (mask & GL_DEPTH_BUFFER_BIT) {
 150       struct gl_depthbuffer_attrib *attr;
 151       attr = MALLOC_STRUCT( gl_depthbuffer_attrib );
 152       MEMCPY( attr, &ctx->Depth, sizeof(struct gl_depthbuffer_attrib) );
 153       newnode = new_attrib_node( GL_DEPTH_BUFFER_BIT );
 154       newnode->data = attr;
 155       newnode->next = head;
 156       head = newnode;
 157    }
 158
 159    if (mask & GL_ENABLE_BIT) {
 160       struct gl_enable_attrib *attr;
 161       GLuint i;
 162       attr = MALLOC_STRUCT( gl_enable_attrib );
 163       /* Copy enable flags from all other attributes into the enable struct. */
 164       attr->AlphaTest = ctx->Color.AlphaEnabled;
 165       attr->AutoNormal = ctx->Eval.AutoNormal;
 166       attr->Blend = ctx->Color.BlendEnabled;
 167       for (i=0;i<MAX_CLIP_PLANES;i++) {
 168          attr->ClipPlane[i] = ctx->Transform.ClipEnabled[i];
 169       }
 170       attr->ColorMaterial = ctx->Light.ColorMaterialEnabled;
 171       attr->Convolution1D = ctx->Pixel.Convolution1DEnabled;
 172       attr->Convolution2D = ctx->Pixel.Convolution2DEnabled;
 173       attr->Separable2D = ctx->Pixel.Separable2DEnabled;
 174       attr->CullFace = ctx->Polygon.CullFlag;
 175       attr->DepthTest = ctx->Depth.Test;
 176       attr->Dither = ctx->Color.DitherFlag;
 177       attr->Fog = ctx->Fog.Enabled;
 178       for (i=0;i<MAX_LIGHTS;i++) {
 179          attr->Light[i] = ctx->Light.Light[i].Enabled;
 180       }
 181       attr->Lighting = ctx->Light.Enabled;
 182       attr->LineSmooth = ctx->Line.SmoothFlag;
 183       attr->LineStipple = ctx->Line.StippleFlag;
 184       attr->Histogram = ctx->Pixel.HistogramEnabled;
 185       attr->MinMax = ctx->Pixel.MinMaxEnabled;
 186       attr->IndexLogicOp = ctx->Color.IndexLogicOpEnabled;
 187       attr->ColorLogicOp = ctx->Color.ColorLogicOpEnabled;
 188       attr->Map1Color4 = ctx->Eval.Map1Color4;
 189       attr->Map1Index = ctx->Eval.Map1Index;
 190       attr->Map1Normal = ctx->Eval.Map1Normal;
 191       attr->Map1TextureCoord1 = ctx->Eval.Map1TextureCoord1;
 192       attr->Map1TextureCoord2 = ctx->Eval.Map1TextureCoord2;
 193       attr->Map1TextureCoord3 = ctx->Eval.Map1TextureCoord3;
 194       attr->Map1TextureCoord4 = ctx->Eval.Map1TextureCoord4;
 195       attr->Map1Vertex3 = ctx->Eval.Map1Vertex3;
 196       attr->Map1Vertex4 = ctx->Eval.Map1Vertex4;
 197       attr->Map2Color4 = ctx->Eval.Map2Color4;
 198       attr->Map2Index = ctx->Eval.Map2Index;
 199       attr->Map2Normal = ctx->Eval.Map2Normal;
 200       attr->Map2TextureCoord1 = ctx->Eval.Map2TextureCoord1;
 201       attr->Map2TextureCoord2 = ctx->Eval.Map2TextureCoord2;
 202       attr->Map2TextureCoord3 = ctx->Eval.Map2TextureCoord3;
 203       attr->Map2TextureCoord4 = ctx->Eval.Map2TextureCoord4;
 204       attr->Map2Vertex3 = ctx->Eval.Map2Vertex3;
 205       attr->Map2Vertex4 = ctx->Eval.Map2Vertex4;
 206       attr->Normalize = ctx->Transform.Normalize;
 207       attr->PixelTexture = ctx->Pixel.PixelTextureEnabled;
 208       attr->PointSmooth = ctx->Point.SmoothFlag;
 209       attr->PolygonOffsetPoint = ctx->Polygon.OffsetPoint;
 210       attr->PolygonOffsetLine = ctx->Polygon.OffsetLine;
 211       attr->PolygonOffsetFill = ctx->Polygon.OffsetFill;
 212       attr->PolygonSmooth = ctx->Polygon.SmoothFlag;
 213       attr->PolygonStipple = ctx->Polygon.StippleFlag;
 214       attr->RescaleNormals = ctx->Transform.RescaleNormals;
 215       attr->Scissor = ctx->Scissor.Enabled;
 216       attr->Stencil = ctx->Stencil.Enabled;
 217       for (i=0; i<MAX_TEXTURE_UNITS; i++) {
 218          attr->Texture[i] = ctx->Texture.Unit[i].Enabled;
 219          attr->TexGen[i] = ctx->Texture.Unit[i].TexGenEnabled;
 220       }
 221       newnode = new_attrib_node( GL_ENABLE_BIT );
 222       newnode->data = attr;
 223       newnode->next = head;
 224       head = newnode;
 225    }
 226
 227    if (mask & GL_EVAL_BIT) {
 228       struct gl_eval_attrib *attr;
 229       attr = MALLOC_STRUCT( gl_eval_attrib );
 230       MEMCPY( attr, &ctx->Eval, sizeof(struct gl_eval_attrib) );
 231       newnode = new_attrib_node( GL_EVAL_BIT );
 232       newnode->data = attr;
 233       newnode->next = head;
 234       head = newnode;
 235    }
 236
 237    if (mask & GL_FOG_BIT) {
 238       struct gl_fog_attrib *attr;
 239       attr = MALLOC_STRUCT( gl_fog_attrib );
 240       MEMCPY( attr, &ctx->Fog, sizeof(struct gl_fog_attrib) );
 241       newnode = new_attrib_node( GL_FOG_BIT );
 242       newnode->data = attr;
 243       newnode->next = head;
 244       head = newnode;
 245    }
 246
 247    if (mask & GL_HINT_BIT) {
 248       struct gl_hint_attrib *attr;
 249       attr = MALLOC_STRUCT( gl_hint_attrib );
 250       MEMCPY( attr, &ctx->Hint, sizeof(struct gl_hint_attrib) );
 251       newnode = new_attrib_node( GL_HINT_BIT );
 252       newnode->data = attr;
 253       newnode->next = head;
 254       head = newnode;
 255    }
 256
 257    if (mask & GL_LIGHTING_BIT) {
 258       struct gl_light_attrib *attr;
 259       attr = MALLOC_STRUCT( gl_light_attrib );
 260       MEMCPY( attr, &ctx->Light, sizeof(struct gl_light_attrib) );
 261       newnode = new_attrib_node( GL_LIGHTING_BIT );
 262       newnode->data = attr;
 263       newnode->next = head;
 264       head = newnode;
 265    }
 266
 267    if (mask & GL_LINE_BIT) {
 268       struct gl_line_attrib *attr;
 269       attr = MALLOC_STRUCT( gl_line_attrib );
 270       MEMCPY( attr, &ctx->Line, sizeof(struct gl_line_attrib) );
 271       newnode = new_attrib_node( GL_LINE_BIT );
 272       newnode->data = attr;
 273       newnode->next = head;
 274       head = newnode;
 275    }
 276
 277    if (mask & GL_LIST_BIT) {
 278       struct gl_list_attrib *attr;
 279       attr = MALLOC_STRUCT( gl_list_attrib );
 280       MEMCPY( attr, &ctx->List, sizeof(struct gl_list_attrib) );
 281       newnode = new_attrib_node( GL_LIST_BIT );
 282       newnode->data = attr;
 283       newnode->next = head;
 284       head = newnode;
 285    }
 286
 287    if (mask & GL_PIXEL_MODE_BIT) {
 288       struct gl_pixel_attrib *attr;
 289       attr = MALLOC_STRUCT( gl_pixel_attrib );
 290       MEMCPY( attr, &ctx->Pixel, sizeof(struct gl_pixel_attrib) );
 291       newnode = new_attrib_node( GL_PIXEL_MODE_BIT );
 292       newnode->data = attr;
 293       newnode->next = head;
 294       head = newnode;
 295    }
 296
 297    if (mask & GL_POINT_BIT) {
 298       struct gl_point_attrib *attr;
 299       attr = MALLOC_STRUCT( gl_point_attrib );
 300       MEMCPY( attr, &ctx->Point, sizeof(struct gl_point_attrib) );
 301       newnode = new_attrib_node( GL_POINT_BIT );
 302       newnode->data = attr;
 303       newnode->next = head;
 304       head = newnode;
 305    }
 306
 307    if (mask & GL_POLYGON_BIT) {
 308       struct gl_polygon_attrib *attr;
 309       attr = MALLOC_STRUCT( gl_polygon_attrib );
 310       MEMCPY( attr, &ctx->Polygon, sizeof(struct gl_polygon_attrib) );
 311       newnode = new_attrib_node( GL_POLYGON_BIT );
 312       newnode->data = attr;
 313       newnode->next = head;
 314       head = newnode;
 315    }
 316
 317    if (mask & GL_POLYGON_STIPPLE_BIT) {
 318       GLuint *stipple;
 319       stipple = (GLuint *) MALLOC( 32*sizeof(GLuint) );
 320       MEMCPY( stipple, ctx->PolygonStipple, 32*sizeof(GLuint) );
 321       newnode = new_attrib_node( GL_POLYGON_STIPPLE_BIT );
 322       newnode->data = stipple;
 323       newnode->next = head;
 324       head = newnode;
 325    }
 326
 327    if (mask & GL_SCISSOR_BIT) {
 328       struct gl_scissor_attrib *attr;
 329       attr = MALLOC_STRUCT( gl_scissor_attrib );
 330       MEMCPY( attr, &ctx->Scissor, sizeof(struct gl_scissor_attrib) );
 331       newnode = new_attrib_node( GL_SCISSOR_BIT );
 332       newnode->data = attr;
 333       newnode->next = head;
 334       head = newnode;
 335    }
 336
 337    if (mask & GL_STENCIL_BUFFER_BIT) {
 338       struct gl_stencil_attrib *attr;
 339       attr = MALLOC_STRUCT( gl_stencil_attrib );
 340       MEMCPY( attr, &ctx->Stencil, sizeof(struct gl_stencil_attrib) );
 341       newnode = new_attrib_node( GL_STENCIL_BUFFER_BIT );
 342       newnode->data = attr;
 343       newnode->next = head;
 344       head = newnode;
 345    }
 346
 347    if (mask & GL_TEXTURE_BIT) {
 348       struct gl_texture_attrib *attr;
 349       GLuint u;
 350       /* Take care of texture object reference counters */
 351       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 352          ctx->Texture.Unit[u].CurrentD[1]->RefCount++;
 353          ctx->Texture.Unit[u].CurrentD[2]->RefCount++;
 354          ctx->Texture.Unit[u].CurrentD[3]->RefCount++;
 355       }
 356       attr = MALLOC_STRUCT( gl_texture_attrib );
 357       MEMCPY( attr, &ctx->Texture, sizeof(struct gl_texture_attrib) );
 358       /* copy state of the currently bound texture objects */
 359       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 360          copy_texobj_state(&attr->Unit[u].Saved1D, attr->Unit[u].CurrentD[1]);
 361          copy_texobj_state(&attr->Unit[u].Saved2D, attr->Unit[u].CurrentD[2]);
 362          copy_texobj_state(&attr->Unit[u].Saved3D, attr->Unit[u].CurrentD[3]);
 363          copy_texobj_state(&attr->Unit[u].SavedCubeMap, attr->Unit[u].CurrentCubeMap);
 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    ctx->AttribStack[ctx->AttribStackDepth] = head;
 392    ctx->AttribStackDepth++;
 393 }
 394
 395
 396
 397 static void
 398 pop_enable_group(GLcontext *ctx, const struct gl_enable_attrib *enable)
 399 {
 400    GLuint i;
 401
 402 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM)          \
 403         if ((VALUE) != (NEWVALUE)) {                    \
 404            _mesa_set_enable( ctx, ENUM, (NEWVALUE) );   \
 405         }
 406
 407    TEST_AND_UPDATE(ctx->Color.AlphaEnabled, enable->AlphaTest, GL_ALPHA_TEST);
 408    TEST_AND_UPDATE(ctx->Transform.Normalize, enable->AutoNormal, GL_NORMALIZE);
 409    TEST_AND_UPDATE(ctx->Color.BlendEnabled, enable->Blend, GL_BLEND);
 410
 411    for (i=0;i<MAX_CLIP_PLANES;i++) {
 412       if (ctx->Transform.ClipEnabled[i] != enable->ClipPlane[i])
 413          _mesa_set_enable(ctx, (GLenum) (GL_CLIP_PLANE0 + i),
 414                           enable->ClipPlane[i]);
 415    }
 416
 417    TEST_AND_UPDATE(ctx->Light.ColorMaterialEnabled, enable->ColorMaterial,
 418                    GL_COLOR_MATERIAL);
 419    TEST_AND_UPDATE(ctx->Polygon.CullFlag, enable->CullFace, GL_CULL_FACE);
 420    TEST_AND_UPDATE(ctx->Depth.Test, enable->DepthTest, GL_DEPTH_TEST);
 421    TEST_AND_UPDATE(ctx->Color.DitherFlag, enable->Dither, GL_DITHER);
 422    TEST_AND_UPDATE(ctx->Pixel.Convolution1DEnabled, enable->Convolution1D,
 423                    GL_CONVOLUTION_1D);
 424    TEST_AND_UPDATE(ctx->Pixel.Convolution2DEnabled, enable->Convolution2D,
 425                    GL_CONVOLUTION_2D);
 426    TEST_AND_UPDATE(ctx->Pixel.Separable2DEnabled, enable->Separable2D,
 427                    GL_SEPARABLE_2D);
 428    TEST_AND_UPDATE(ctx->Fog.Enabled, enable->Fog, GL_FOG);
 429    TEST_AND_UPDATE(ctx->Light.Enabled, enable->Lighting, GL_LIGHTING);
 430    TEST_AND_UPDATE(ctx->Line.SmoothFlag, enable->LineSmooth, GL_LINE_SMOOTH);
 431    TEST_AND_UPDATE(ctx->Line.StippleFlag, enable->LineStipple,
 432                    GL_LINE_STIPPLE);
 433    TEST_AND_UPDATE(ctx->Color.IndexLogicOpEnabled, enable->IndexLogicOp,
 434                    GL_INDEX_LOGIC_OP);
 435    TEST_AND_UPDATE(ctx->Color.ColorLogicOpEnabled, enable->ColorLogicOp,
 436                    GL_COLOR_LOGIC_OP);
 437    TEST_AND_UPDATE(ctx->Eval.Map1Color4, enable->Map1Color4, GL_MAP1_COLOR_4);
 438    TEST_AND_UPDATE(ctx->Eval.Map1Index, enable->Map1Index, GL_MAP1_INDEX);
 439    TEST_AND_UPDATE(ctx->Eval.Map1Normal, enable->Map1Normal, GL_MAP1_NORMAL);
 440    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord1, enable->Map1TextureCoord1,
 441                    GL_MAP1_TEXTURE_COORD_1);
 442    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord2, enable->Map1TextureCoord2,
 443                    GL_MAP1_TEXTURE_COORD_2);
 444    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord3, enable->Map1TextureCoord3,
 445                    GL_MAP1_TEXTURE_COORD_3);
 446    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord4, enable->Map1TextureCoord4,
 447                    GL_MAP1_TEXTURE_COORD_4);
 448    TEST_AND_UPDATE(ctx->Eval.Map1Vertex3, enable->Map1Vertex3,
 449                    GL_MAP1_VERTEX_3);
 450    TEST_AND_UPDATE(ctx->Eval.Map1Vertex4, enable->Map1Vertex4,
 451                    GL_MAP1_VERTEX_4);
 452    TEST_AND_UPDATE(ctx->Eval.Map2Color4, enable->Map2Color4, GL_MAP2_COLOR_4);
 453    TEST_AND_UPDATE(ctx->Eval.Map2Index, enable->Map2Index, GL_MAP2_INDEX);
 454    TEST_AND_UPDATE(ctx->Eval.Map2Normal, enable->Map2Normal, GL_MAP2_NORMAL);
 455    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord1, enable->Map2TextureCoord1,
 456                    GL_MAP2_TEXTURE_COORD_1);
 457    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord2, enable->Map2TextureCoord2,
 458                    GL_MAP2_TEXTURE_COORD_2);
 459    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord3, enable->Map2TextureCoord3,
 460                    GL_MAP2_TEXTURE_COORD_3);
 461    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord4, enable->Map2TextureCoord4,
 462                    GL_MAP2_TEXTURE_COORD_4);
 463    TEST_AND_UPDATE(ctx->Eval.Map2Vertex3, enable->Map2Vertex3,
 464                    GL_MAP2_VERTEX_3);
 465    TEST_AND_UPDATE(ctx->Eval.Map2Vertex4, enable->Map2Vertex4,
 466                    GL_MAP2_VERTEX_4);
 467    TEST_AND_UPDATE(ctx->Transform.Normalize, enable->Normalize, GL_NORMALIZE);
 468    TEST_AND_UPDATE(ctx->Transform.RescaleNormals, enable->RescaleNormals,
 469                    GL_RESCALE_NORMAL_EXT);
 470    TEST_AND_UPDATE(ctx->Pixel.PixelTextureEnabled, enable->PixelTexture,
 471                    GL_POINT_SMOOTH);
 472    TEST_AND_UPDATE(ctx->Point.SmoothFlag, enable->PointSmooth,
 473                    GL_POINT_SMOOTH);
 474    TEST_AND_UPDATE(ctx->Polygon.OffsetPoint, enable->PolygonOffsetPoint,
 475                    GL_POLYGON_OFFSET_POINT);
 476    TEST_AND_UPDATE(ctx->Polygon.OffsetLine, enable->PolygonOffsetLine,
 477                    GL_POLYGON_OFFSET_LINE);
 478    TEST_AND_UPDATE(ctx->Polygon.OffsetFill, enable->PolygonOffsetFill,
 479                    GL_POLYGON_OFFSET_FILL);
 480    TEST_AND_UPDATE(ctx->Polygon.SmoothFlag, enable->PolygonSmooth,
 481                    GL_POLYGON_SMOOTH);
 482    TEST_AND_UPDATE(ctx->Polygon.StippleFlag, enable->PolygonStipple,
 483                    GL_POLYGON_STIPPLE);
 484    TEST_AND_UPDATE(ctx->Scissor.Enabled, enable->Scissor, GL_SCISSOR_TEST);
 485    TEST_AND_UPDATE(ctx->Stencil.Enabled, enable->Stencil, GL_STENCIL_TEST);
 486 #undef TEST_AND_UPDATE
 487
 488    /* texture unit enables */
 489    for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
 490       if (ctx->Texture.Unit[i].Enabled != enable->Texture[i]) {
 491          ctx->Texture.Unit[i].Enabled = enable->Texture[i];
 492          if (ctx->Driver.Enable) {
 493             if (ctx->Driver.ActiveTexture) {
 494                (*ctx->Driver.ActiveTexture)(ctx, i);
 495             }
 496             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_1D,
 497                              (GLboolean) (enable->Texture[i] & TEXTURE0_1D) );
 498             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_2D,
 499                              (GLboolean) (enable->Texture[i] & TEXTURE0_2D) );
 500             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_3D,
 501                              (GLboolean) (enable->Texture[i] & TEXTURE0_3D) );
 502          }
 503       }
 504
 505       if (ctx->Texture.Unit[i].TexGenEnabled != enable->TexGen[i]) {
 506          ctx->Texture.Unit[i].TexGenEnabled = enable->TexGen[i];
 507          if (ctx->Driver.Enable) {
 508             if (ctx->Driver.ActiveTexture) {
 509                (*ctx->Driver.ActiveTexture)(ctx, i);
 510             }
 511             if (enable->TexGen[i] & S_BIT)
 512                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_TRUE);
 513             else
 514                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_FALSE);
 515             if (enable->TexGen[i] & T_BIT)
 516                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_TRUE);
 517             else
 518                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_FALSE);
 519             if (enable->TexGen[i] & R_BIT)
 520                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_TRUE);
 521             else
 522                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_FALSE);
 523             if (enable->TexGen[i] & Q_BIT)
 524                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_TRUE);
 525             else
 526                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_FALSE);
 527          }
 528       }
 529    }
 530
 531    if (ctx->Driver.ActiveTexture) {
 532       (*ctx->Driver.ActiveTexture)(ctx, ctx->Texture.CurrentUnit);
 533    }
 534 }
 535
 536
 537
 538 /*
 539  * This function is kind of long just because we have to call a lot
 540  * of device driver functions to update device driver state.
 541  */
 542 void
 543 _mesa_PopAttrib(void)
 544 {
 545    struct gl_attrib_node *attr, *next;
 546    GET_CURRENT_CONTEXT(ctx);
 547
 548    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPopAttrib");
 549
 550
 551    if (ctx->AttribStackDepth==0) {
 552       gl_error( ctx, GL_STACK_UNDERFLOW, "glPopAttrib" );
 553       return;
 554    }
 555
 556    ctx->AttribStackDepth--;
 557    attr = ctx->AttribStack[ctx->AttribStackDepth];
 558
 559    while (attr) {
 560
 561       if (MESA_VERBOSE&VERBOSE_API)
 562          fprintf(stderr, "glPopAttrib %s\n", gl_lookup_enum_by_nr(attr->kind));
 563
 564       switch (attr->kind) {
 565          case GL_ACCUM_BUFFER_BIT:
 566             MEMCPY( &ctx->Accum, attr->data, sizeof(struct gl_accum_attrib) );
 567             ctx->NewState |= _NEW_ACCUM;
 568             break;
 569          case GL_COLOR_BUFFER_BIT:
 570             {
 571                GLenum oldDrawBuffer = ctx->Color.DrawBuffer;
 572                GLenum oldAlphaFunc = ctx->Color.AlphaFunc;
 573                GLchan oldAlphaRef = ctx->Color.AlphaRef;
 574                GLenum oldBlendSrc = ctx->Color.BlendSrcRGB;
 575                GLenum oldBlendDst = ctx->Color.BlendDstRGB;
 576                GLenum oldLogicOp = ctx->Color.LogicOp;
 577                MEMCPY( &ctx->Color, attr->data,
 578                        sizeof(struct gl_colorbuffer_attrib) );
 579                ctx->NewState |= _NEW_COLOR;
 580                if (ctx->Color.DrawBuffer != oldDrawBuffer) {
 581                   _mesa_DrawBuffer( ctx->Color.DrawBuffer);
 582                }
 583                if ((ctx->Color.BlendSrcRGB != oldBlendSrc ||
 584                     ctx->Color.BlendDstRGB != oldBlendDst) &&
 585                    ctx->Driver.BlendFunc)
 586                   (*ctx->Driver.BlendFunc)( ctx, ctx->Color.BlendSrcRGB,
 587                                             ctx->Color.BlendDstRGB);
 588                if (ctx->Color.LogicOp != oldLogicOp &&
 589                    ctx->Driver.LogicOpcode) {
 590                   ctx->Driver.LogicOpcode( ctx, ctx->Color.LogicOp );
 591                }
 592                if (ctx->Visual.RGBAflag) {
 593                   GLchan r = (GLint) (ctx->Color.ClearColor[0] * CHAN_MAXF);
 594                   GLchan g = (GLint) (ctx->Color.ClearColor[1] * CHAN_MAXF);
 595                   GLchan b = (GLint) (ctx->Color.ClearColor[2] * CHAN_MAXF);
 596                   GLchan a = (GLint) (ctx->Color.ClearColor[3] * CHAN_MAXF);
 597                   (*ctx->Driver.ClearColor)( ctx, r, g, b, a );
 598                   if ((ctx->Color.AlphaFunc != oldAlphaFunc ||
 599                        ctx->Color.AlphaRef != oldAlphaRef) &&
 600                       ctx->Driver.AlphaFunc)
 601                      (*ctx->Driver.AlphaFunc)( ctx, ctx->Color.AlphaFunc,
 602                                               ctx->Color.AlphaRef / CHAN_MAXF);
 603                   if (ctx->Driver.ColorMask) {
 604                      (*ctx->Driver.ColorMask)(ctx,
 605                                               ctx->Color.ColorMask[0],
 606                                               ctx->Color.ColorMask[1],
 607                                               ctx->Color.ColorMask[2],
 608                                               ctx->Color.ColorMask[3]);
 609                   }
 610                }
 611                else {
 612                   (*ctx->Driver.ClearIndex)( ctx, ctx->Color.ClearIndex);
 613                }
 614             }
 615             break;
 616          case GL_CURRENT_BIT:
 617             MEMCPY( &ctx->Current, attr->data,
 618                     sizeof(struct gl_current_attrib) );
 619             break;
 620          case GL_DEPTH_BUFFER_BIT:
 621             {
 622                GLboolean oldDepthTest = ctx->Depth.Test;
 623                GLenum oldDepthFunc = ctx->Depth.Func;
 624                GLboolean oldDepthMask = ctx->Depth.Mask;
 625                GLfloat oldDepthClear = ctx->Depth.Clear;
 626                MEMCPY( &ctx->Depth, attr->data,
 627                        sizeof(struct gl_depthbuffer_attrib) );
 628                ctx->NewState |= _NEW_DEPTH;
 629                if (ctx->Depth.Test != oldDepthTest && ctx->Driver.Enable)
 630                   (*ctx->Driver.Enable)( ctx, GL_DEPTH_TEST, ctx->Depth.Test);
 631                if (ctx->Depth.Func != oldDepthFunc && ctx->Driver.DepthFunc)
 632                   (*ctx->Driver.DepthFunc)( ctx, ctx->Depth.Func );
 633                if (ctx->Depth.Mask != oldDepthMask && ctx->Driver.DepthMask)
 634                   (*ctx->Driver.DepthMask)( ctx, ctx->Depth.Mask );
 635                if (ctx->Depth.Clear != oldDepthClear && ctx->Driver.ClearDepth)
 636                   (*ctx->Driver.ClearDepth)( ctx, ctx->Depth.Clear );
 637             }
 638             break;
 639          case GL_ENABLE_BIT:
 640             {
 641                const struct gl_enable_attrib *enable;
 642                enable = (const struct gl_enable_attrib *) attr->data;
 643                pop_enable_group(ctx, enable);
 644                ctx->NewState |= _NEW_ALL;
 645             }
 646             break;
 647          case GL_EVAL_BIT:
 648             MEMCPY( &ctx->Eval, attr->data, sizeof(struct gl_eval_attrib) );
 649             ctx->NewState |= _NEW_EVAL;
 650             break;
 651          case GL_FOG_BIT:
 652             {
 653                GLboolean anyChange = (GLboolean) (memcmp( &ctx->Fog, attr->data, sizeof(struct gl_fog_attrib) ) != 0);
 654                MEMCPY( &ctx->Fog, attr->data, sizeof(struct gl_fog_attrib) );
 655                ctx->NewState |= _NEW_FOG;
 656                if (anyChange && ctx->Driver.Fogfv) {
 657                   const GLfloat mode = (GLfloat) ctx->Fog.Mode;
 658                   const GLfloat density = ctx->Fog.Density;
 659                   const GLfloat start = ctx->Fog.Start;
 660                   const GLfloat end = ctx->Fog.End;
 661                   const GLfloat index = ctx->Fog.Index;
 662                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_MODE, &mode);
 663                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_DENSITY, &density );
 664                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_START, &start );
 665                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_END, &end );
 666                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_INDEX, &index );
 667                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_COLOR, ctx->Fog.Color );
 668                }
 669                ctx->Enabled &= ~ENABLE_FOG;
 670                if (ctx->Fog.Enabled) ctx->Enabled |= ENABLE_FOG;
 671             }
 672             break;
 673          case GL_HINT_BIT:
 674             MEMCPY( &ctx->Hint, attr->data, sizeof(struct gl_hint_attrib) );
 675             ctx->NewState |= _NEW_HINT;
 676             if (ctx->Driver.Hint) {
 677                (*ctx->Driver.Hint)( ctx, GL_PERSPECTIVE_CORRECTION_HINT,
 678                                     ctx->Hint.PerspectiveCorrection );
 679                (*ctx->Driver.Hint)( ctx, GL_POINT_SMOOTH_HINT,
 680                                     ctx->Hint.PointSmooth);
 681                (*ctx->Driver.Hint)( ctx, GL_LINE_SMOOTH_HINT,
 682                                     ctx->Hint.LineSmooth );
 683                (*ctx->Driver.Hint)( ctx, GL_POLYGON_SMOOTH_HINT,
 684                                     ctx->Hint.PolygonSmooth );
 685                (*ctx->Driver.Hint)( ctx, GL_FOG_HINT, ctx->Hint.Fog );
 686             }
 687             break;
 688          case GL_LIGHTING_BIT:
 689             MEMCPY( &ctx->Light, attr->data, sizeof(struct gl_light_attrib) );
 690             ctx->NewState |= _NEW_LIGHT;
 691             if (ctx->Driver.Enable) {
 692                GLuint i;
 693                for (i = 0; i < MAX_LIGHTS; i++) {
 694                   GLenum light = (GLenum) (GL_LIGHT0 + i);
 695                   (*ctx->Driver.Enable)( ctx, light, ctx->Light.Light[i].Enabled );
 696                }
 697                (*ctx->Driver.Enable)( ctx, GL_LIGHTING, ctx->Light.Enabled );
 698             }
 699             if (ctx->Light.ShadeModel == GL_FLAT)
 700                ctx->TriangleCaps |= DD_FLATSHADE;
 701             else
 702                ctx->TriangleCaps &= ~DD_FLATSHADE;
 703             if (ctx->Driver.ShadeModel)
 704                (*ctx->Driver.ShadeModel)(ctx, ctx->Light.ShadeModel);
 705             ctx->Enabled &= ~ENABLE_LIGHT;
 706             if (ctx->Light.Enabled && !is_empty_list(&ctx->Light.EnabledList))
 707                ctx->Enabled |= ENABLE_LIGHT;
 708             break;
 709          case GL_LINE_BIT:
 710             MEMCPY( &ctx->Line, attr->data, sizeof(struct gl_line_attrib) );
 711             ctx->NewState |= _NEW_LINE;
 712             if (ctx->Driver.Enable) {
 713                (*ctx->Driver.Enable)( ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag );
 714                (*ctx->Driver.Enable)( ctx, GL_LINE_STIPPLE, ctx->Line.StippleFlag );
 715             }
 716             if (ctx->Driver.LineStipple)
 717                (*ctx->Driver.LineStipple)(ctx, ctx->Line.StippleFactor,
 718                                           ctx->Line.StipplePattern);
 719             if (ctx->Driver.LineWidth)
 720                (*ctx->Driver.LineWidth)(ctx, ctx->Line.Width);
 721             break;
 722          case GL_LIST_BIT:
 723             MEMCPY( &ctx->List, attr->data, sizeof(struct gl_list_attrib) );
 724             break;
 725          case GL_PIXEL_MODE_BIT:
 726             MEMCPY( &ctx->Pixel, attr->data, sizeof(struct gl_pixel_attrib) );
 727             ctx->NewState |= _NEW_PIXEL;
 728             break;
 729          case GL_POINT_BIT:
 730             MEMCPY( &ctx->Point, attr->data, sizeof(struct gl_point_attrib) );
 731             ctx->NewState |= _NEW_POINT;
 732             if (ctx->Driver.Enable)
 733                (*ctx->Driver.Enable)( ctx, GL_POINT_SMOOTH, ctx->Point.SmoothFlag );
 734             break;
 735          case GL_POLYGON_BIT:
 736             {
 737                GLenum oldFrontMode = ctx->Polygon.FrontMode;
 738                GLenum oldBackMode = ctx->Polygon.BackMode;
 739                MEMCPY( &ctx->Polygon, attr->data,
 740                        sizeof(struct gl_polygon_attrib) );
 741                ctx->NewState |= _NEW_POLYGON;
 742                if ((ctx->Polygon.FrontMode != oldFrontMode ||
 743                     ctx->Polygon.BackMode != oldBackMode) &&
 744                    ctx->Driver.PolygonMode) {
 745                   (*ctx->Driver.PolygonMode)( ctx, GL_FRONT, ctx->Polygon.FrontMode);
 746                   (*ctx->Driver.PolygonMode)( ctx, GL_BACK, ctx->Polygon.BackMode);
 747                }
 748                if (ctx->Driver.CullFace)
 749                   ctx->Driver.CullFace( ctx, ctx->Polygon.CullFaceMode );
 750
 751                if (ctx->Driver.FrontFace)
 752                   ctx->Driver.FrontFace( ctx, ctx->Polygon.FrontFace );
 753
 754                if (ctx->Driver.Enable)
 755                   (*ctx->Driver.Enable)( ctx, GL_POLYGON_SMOOTH, ctx->Polygon.SmoothFlag );
 756             }
 757             break;
 758          case GL_POLYGON_STIPPLE_BIT:
 759             MEMCPY( ctx->PolygonStipple, attr->data, 32*sizeof(GLuint) );
 760             ctx->NewState |= _NEW_POLYGONSTIPPLE;
 761             if (ctx->Driver.PolygonStipple)
 762                ctx->Driver.PolygonStipple( ctx, (const GLubyte *) attr->data );
 763             break;
 764          case GL_SCISSOR_BIT:
 765             MEMCPY( &ctx->Scissor, attr->data,
 766                     sizeof(struct gl_scissor_attrib) );
 767             ctx->NewState |= _NEW_SCISSOR;
 768             if (ctx->Driver.Enable)
 769                (*ctx->Driver.Enable)( ctx, GL_SCISSOR_TEST, ctx->Scissor.Enabled );
 770             if (ctx->Driver.Scissor)
 771                ctx->Driver.Scissor( ctx, ctx->Scissor.X, ctx->Scissor.Y,
 772                                     ctx->Scissor.Width, ctx->Scissor.Height );
 773             break;
 774          case GL_STENCIL_BUFFER_BIT:
 775             MEMCPY( &ctx->Stencil, attr->data,
 776                     sizeof(struct gl_stencil_attrib) );
 777             ctx->NewState |= _NEW_STENCIL;
 778             if (ctx->Driver.StencilFunc)
 779                (*ctx->Driver.StencilFunc)( ctx, ctx->Stencil.Function,
 780                                    ctx->Stencil.Ref, ctx->Stencil.ValueMask);
 781             if (ctx->Driver.StencilMask)
 782                (*ctx->Driver.StencilMask)( ctx, ctx->Stencil.WriteMask );
 783             if (ctx->Driver.StencilOp)
 784                (*ctx->Driver.StencilOp)( ctx, ctx->Stencil.FailFunc,
 785                               ctx->Stencil.ZFailFunc, ctx->Stencil.ZPassFunc);
 786             if (ctx->Driver.ClearStencil)
 787                (*ctx->Driver.ClearStencil)( ctx, ctx->Stencil.Clear );
 788             if (ctx->Driver.Enable)
 789                (*ctx->Driver.Enable)( ctx, GL_STENCIL_TEST, ctx->Stencil.Enabled );
 790             ctx->TriangleCaps &= ~DD_STENCIL;
 791             if (ctx->Stencil.Enabled)
 792                ctx->TriangleCaps |= DD_STENCIL;
 793
 794             break;
 795          case GL_TRANSFORM_BIT:
 796             MEMCPY( &ctx->Transform, attr->data,
 797                     sizeof(struct gl_transform_attrib) );
 798             ctx->NewState |= _NEW_TRANSFORM;
 799             if (ctx->Driver.Enable) {
 800                (*ctx->Driver.Enable)( ctx, GL_NORMALIZE, ctx->Transform.Normalize );
 801                (*ctx->Driver.Enable)( ctx, GL_RESCALE_NORMAL_EXT, ctx->Transform.RescaleNormals );
 802             }
 803             ctx->Enabled &= ~(ENABLE_NORMALIZE|ENABLE_RESCALE);
 804             if (ctx->Transform.Normalize) ctx->Enabled |= ENABLE_NORMALIZE;
 805             if (ctx->Transform.RescaleNormals) ctx->Enabled |= ENABLE_RESCALE;
 806             break;
 807          case GL_TEXTURE_BIT:
 808             /* Take care of texture object reference counters */
 809             {
 810                GLuint u;
 811                for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 812                   ctx->Texture.Unit[u].CurrentD[1]->RefCount--;
 813                   ctx->Texture.Unit[u].CurrentD[2]->RefCount--;
 814                   ctx->Texture.Unit[u].CurrentD[3]->RefCount--;
 815                }
 816                MEMCPY( &ctx->Texture, attr->data,
 817                        sizeof(struct gl_texture_attrib) );
 818                ctx->NewState |= _NEW_TEXTURE;
 819                /* restore state of the currently bound texture objects */
 820                for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 821                   copy_texobj_state( ctx->Texture.Unit[u].CurrentD[1],
 822                                      &(ctx->Texture.Unit[u].Saved1D) );
 823                   copy_texobj_state( ctx->Texture.Unit[u].CurrentD[2],
 824                                      &(ctx->Texture.Unit[u].Saved2D) );
 825                   copy_texobj_state( ctx->Texture.Unit[u].CurrentD[3],
 826                                      &(ctx->Texture.Unit[u].Saved3D) );
 827                   copy_texobj_state( ctx->Texture.Unit[u].CurrentCubeMap,
 828                                      &(ctx->Texture.Unit[u].SavedCubeMap) );
 829
 830                   gl_put_texobj_on_dirty_list( ctx, ctx->Texture.Unit[u].CurrentD[1] );
 831                   gl_put_texobj_on_dirty_list( ctx, ctx->Texture.Unit[u].CurrentD[2] );
 832                   gl_put_texobj_on_dirty_list( ctx, ctx->Texture.Unit[u].CurrentD[3] );
 833                   gl_put_texobj_on_dirty_list( ctx, ctx->Texture.Unit[u].CurrentCubeMap );
 834
 835                }
 836             }
 837             break;
 838          case GL_VIEWPORT_BIT:
 839          {
 840             struct gl_viewport_attrib *v =
 841                (struct gl_viewport_attrib *)attr->data;
 842
 843             ctx->NewState |= _NEW_VIEWPORT;
 844             _mesa_Viewport( v->X, v->Y, v->Width, v->Height );
 845             _mesa_DepthRange( v->Near, v->Far );
 846             break;
 847          }
 848          default:
 849             gl_problem( ctx, "Bad attrib flag in PopAttrib");
 850             break;
 851       }
 852
 853       next = attr->next;
 854       FREE( attr->data );
 855       FREE( attr );
 856       attr = next;
 857    }
 858
 859    ctx->ImageTransferState = UPDATE_IMAGE_TRANSFER_STATE;
 860 }
 861
 862
 863 #define GL_CLIENT_PACK_BIT (1<<20)
 864 #define GL_CLIENT_UNPACK_BIT (1<<21)
 865
 866
 867 void
 868 _mesa_PushClientAttrib(GLbitfield mask)
 869 {
 870    struct gl_attrib_node *newnode;
 871    struct gl_attrib_node *head;
 872
 873    GET_CURRENT_CONTEXT(ctx);
 874    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPushClientAttrib");
 875
 876    if (ctx->ClientAttribStackDepth>=MAX_CLIENT_ATTRIB_STACK_DEPTH) {
 877       gl_error( ctx, GL_STACK_OVERFLOW, "glPushClientAttrib" );
 878       return;
 879    }
 880
 881    /* Build linked list of attribute nodes which save all attribute */
 882    /* groups specified by the mask. */
 883    head = NULL;
 884
 885    if (mask & GL_CLIENT_PIXEL_STORE_BIT) {
 886       struct gl_pixelstore_attrib *attr;
 887       /* packing attribs */
 888       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
 889       MEMCPY( attr, &ctx->Pack, sizeof(struct gl_pixelstore_attrib) );
 890       newnode = new_attrib_node( GL_CLIENT_PACK_BIT );
 891       newnode->data = attr;
 892       newnode->next = head;
 893       head = newnode;
 894       /* unpacking attribs */
 895       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
 896       MEMCPY( attr, &ctx->Unpack, sizeof(struct gl_pixelstore_attrib) );
 897       newnode = new_attrib_node( GL_CLIENT_UNPACK_BIT );
 898       newnode->data = attr;
 899       newnode->next = head;
 900       head = newnode;
 901    }
 902    if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) {
 903       struct gl_array_attrib *attr;
 904       attr = MALLOC_STRUCT( gl_array_attrib );
 905       MEMCPY( attr, &ctx->Array, sizeof(struct gl_array_attrib) );
 906       newnode = new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT );
 907       newnode->data = attr;
 908       newnode->next = head;
 909       head = newnode;
 910    }
 911
 912    ctx->ClientAttribStack[ctx->ClientAttribStackDepth] = head;
 913    ctx->ClientAttribStackDepth++;
 914 }
 915
 916
 917
 918
 919 void
 920 _mesa_PopClientAttrib(void)
 921 {
 922    struct gl_attrib_node *attr, *next;
 923
 924    GET_CURRENT_CONTEXT(ctx);
 925    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPopClientAttrib");
 926
 927    if (ctx->ClientAttribStackDepth==0) {
 928       gl_error( ctx, GL_STACK_UNDERFLOW, "glPopClientAttrib" );
 929       return;
 930    }
 931
 932    ctx->ClientAttribStackDepth--;
 933    attr = ctx->ClientAttribStack[ctx->ClientAttribStackDepth];
 934
 935    while (attr) {
 936       switch (attr->kind) {
 937          case GL_CLIENT_PACK_BIT:
 938             MEMCPY( &ctx->Pack, attr->data,
 939                     sizeof(struct gl_pixelstore_attrib) );
 940             break;
 941          case GL_CLIENT_UNPACK_BIT:
 942             MEMCPY( &ctx->Unpack, attr->data,
 943                     sizeof(struct gl_pixelstore_attrib) );
 944             break;
 945          case GL_CLIENT_VERTEX_ARRAY_BIT:
 946             MEMCPY( &ctx->Array, attr->data,
 947                     sizeof(struct gl_array_attrib) );
 948             break;
 949          default:
 950             gl_problem( ctx, "Bad attrib flag in PopClientAttrib");
 951             break;
 952       }
 953
 954       next = attr->next;
 955       FREE( attr->data );
 956       FREE( attr );
 957       attr = next;
 958    }
 959
 960    ctx->NewState = _NEW_ARRAY;
 961 }
 962
 963
 964