src/mesa/main/attrib.c

   1 /* $Id: attrib.c,v 1.35 2000/11/19 23:10:25 brianp 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->Palette = src->Palette;
  91    dest->Complete = src->Complete;
  92 }
  93
  94
  95
  96 void
  97 _mesa_PushAttrib(GLbitfield mask)
  98 {
  99    struct gl_attrib_node *newnode;
 100    struct gl_attrib_node *head;
 101
 102    GET_CURRENT_CONTEXT(ctx);
 103    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPushAttrib");
 104
 105    if (MESA_VERBOSE&VERBOSE_API)
 106       fprintf(stderr, "glPushAttrib %x\n", (int)mask);
 107
 108    if (ctx->AttribStackDepth>=MAX_ATTRIB_STACK_DEPTH) {
 109       gl_error( ctx, GL_STACK_OVERFLOW, "glPushAttrib" );
 110       return;
 111    }
 112
 113    /* Build linked list of attribute nodes which save all attribute */
 114    /* groups specified by the mask. */
 115    head = NULL;
 116
 117    if (mask & GL_ACCUM_BUFFER_BIT) {
 118       struct gl_accum_attrib *attr;
 119       attr = MALLOC_STRUCT( gl_accum_attrib );
 120       MEMCPY( attr, &ctx->Accum, sizeof(struct gl_accum_attrib) );
 121       newnode = new_attrib_node( GL_ACCUM_BUFFER_BIT );
 122       newnode->data = attr;
 123       newnode->next = head;
 124       head = newnode;
 125    }
 126
 127    if (mask & GL_COLOR_BUFFER_BIT) {
 128       struct gl_colorbuffer_attrib *attr;
 129       attr = MALLOC_STRUCT( gl_colorbuffer_attrib );
 130       MEMCPY( attr, &ctx->Color, sizeof(struct gl_colorbuffer_attrib) );
 131       newnode = new_attrib_node( GL_COLOR_BUFFER_BIT );
 132       newnode->data = attr;
 133       newnode->next = head;
 134       head = newnode;
 135    }
 136
 137    if (mask & GL_CURRENT_BIT) {
 138       struct gl_current_attrib *attr;
 139
 140       FLUSH_TNL( ctx, FLUSH_UPDATE_CURRENT );
 141
 142       attr = MALLOC_STRUCT( gl_current_attrib );
 143       MEMCPY( attr, &ctx->Current, sizeof(struct gl_current_attrib) );
 144       newnode = new_attrib_node( GL_CURRENT_BIT );
 145       newnode->data = attr;
 146       newnode->next = head;
 147       head = newnode;
 148    }
 149
 150    if (mask & GL_DEPTH_BUFFER_BIT) {
 151       struct gl_depthbuffer_attrib *attr;
 152       attr = MALLOC_STRUCT( gl_depthbuffer_attrib );
 153       MEMCPY( attr, &ctx->Depth, sizeof(struct gl_depthbuffer_attrib) );
 154       newnode = new_attrib_node( GL_DEPTH_BUFFER_BIT );
 155       newnode->data = attr;
 156       newnode->next = head;
 157       head = newnode;
 158    }
 159
 160    if (mask & GL_ENABLE_BIT) {
 161       struct gl_enable_attrib *attr;
 162       GLuint i;
 163       attr = MALLOC_STRUCT( gl_enable_attrib );
 164       /* Copy enable flags from all other attributes into the enable struct. */
 165       attr->AlphaTest = ctx->Color.AlphaEnabled;
 166       attr->AutoNormal = ctx->Eval.AutoNormal;
 167       attr->Blend = ctx->Color.BlendEnabled;
 168       for (i=0;i<MAX_CLIP_PLANES;i++) {
 169          attr->ClipPlane[i] = ctx->Transform.ClipEnabled[i];
 170       }
 171       attr->ColorMaterial = ctx->Light.ColorMaterialEnabled;
 172       attr->Convolution1D = ctx->Pixel.Convolution1DEnabled;
 173       attr->Convolution2D = ctx->Pixel.Convolution2DEnabled;
 174       attr->Separable2D = ctx->Pixel.Separable2DEnabled;
 175       attr->CullFace = ctx->Polygon.CullFlag;
 176       attr->DepthTest = ctx->Depth.Test;
 177       attr->Dither = ctx->Color.DitherFlag;
 178       attr->Fog = ctx->Fog.Enabled;
 179       for (i=0;i<MAX_LIGHTS;i++) {
 180          attr->Light[i] = ctx->Light.Light[i].Enabled;
 181       }
 182       attr->Lighting = ctx->Light.Enabled;
 183       attr->LineSmooth = ctx->Line.SmoothFlag;
 184       attr->LineStipple = ctx->Line.StippleFlag;
 185       attr->Histogram = ctx->Pixel.HistogramEnabled;
 186       attr->MinMax = ctx->Pixel.MinMaxEnabled;
 187       attr->IndexLogicOp = ctx->Color.IndexLogicOpEnabled;
 188       attr->ColorLogicOp = ctx->Color.ColorLogicOpEnabled;
 189       attr->Map1Color4 = ctx->Eval.Map1Color4;
 190       attr->Map1Index = ctx->Eval.Map1Index;
 191       attr->Map1Normal = ctx->Eval.Map1Normal;
 192       attr->Map1TextureCoord1 = ctx->Eval.Map1TextureCoord1;
 193       attr->Map1TextureCoord2 = ctx->Eval.Map1TextureCoord2;
 194       attr->Map1TextureCoord3 = ctx->Eval.Map1TextureCoord3;
 195       attr->Map1TextureCoord4 = ctx->Eval.Map1TextureCoord4;
 196       attr->Map1Vertex3 = ctx->Eval.Map1Vertex3;
 197       attr->Map1Vertex4 = ctx->Eval.Map1Vertex4;
 198       attr->Map2Color4 = ctx->Eval.Map2Color4;
 199       attr->Map2Index = ctx->Eval.Map2Index;
 200       attr->Map2Normal = ctx->Eval.Map2Normal;
 201       attr->Map2TextureCoord1 = ctx->Eval.Map2TextureCoord1;
 202       attr->Map2TextureCoord2 = ctx->Eval.Map2TextureCoord2;
 203       attr->Map2TextureCoord3 = ctx->Eval.Map2TextureCoord3;
 204       attr->Map2TextureCoord4 = ctx->Eval.Map2TextureCoord4;
 205       attr->Map2Vertex3 = ctx->Eval.Map2Vertex3;
 206       attr->Map2Vertex4 = ctx->Eval.Map2Vertex4;
 207       attr->Normalize = ctx->Transform.Normalize;
 208       attr->PixelTexture = ctx->Pixel.PixelTextureEnabled;
 209       attr->PointSmooth = ctx->Point.SmoothFlag;
 210       attr->PolygonOffsetPoint = ctx->Polygon.OffsetPoint;
 211       attr->PolygonOffsetLine = ctx->Polygon.OffsetLine;
 212       attr->PolygonOffsetFill = ctx->Polygon.OffsetFill;
 213       attr->PolygonSmooth = ctx->Polygon.SmoothFlag;
 214       attr->PolygonStipple = ctx->Polygon.StippleFlag;
 215       attr->RescaleNormals = ctx->Transform.RescaleNormals;
 216       attr->Scissor = ctx->Scissor.Enabled;
 217       attr->Stencil = ctx->Stencil.Enabled;
 218       for (i=0; i<MAX_TEXTURE_UNITS; i++) {
 219          attr->Texture[i] = ctx->Texture.Unit[i].Enabled;
 220          attr->TexGen[i] = ctx->Texture.Unit[i].TexGenEnabled;
 221       }
 222       newnode = new_attrib_node( GL_ENABLE_BIT );
 223       newnode->data = attr;
 224       newnode->next = head;
 225       head = newnode;
 226    }
 227
 228    if (mask & GL_EVAL_BIT) {
 229       struct gl_eval_attrib *attr;
 230       attr = MALLOC_STRUCT( gl_eval_attrib );
 231       MEMCPY( attr, &ctx->Eval, sizeof(struct gl_eval_attrib) );
 232       newnode = new_attrib_node( GL_EVAL_BIT );
 233       newnode->data = attr;
 234       newnode->next = head;
 235       head = newnode;
 236    }
 237
 238    if (mask & GL_FOG_BIT) {
 239       struct gl_fog_attrib *attr;
 240       attr = MALLOC_STRUCT( gl_fog_attrib );
 241       MEMCPY( attr, &ctx->Fog, sizeof(struct gl_fog_attrib) );
 242       newnode = new_attrib_node( GL_FOG_BIT );
 243       newnode->data = attr;
 244       newnode->next = head;
 245       head = newnode;
 246    }
 247
 248    if (mask & GL_HINT_BIT) {
 249       struct gl_hint_attrib *attr;
 250       attr = MALLOC_STRUCT( gl_hint_attrib );
 251       MEMCPY( attr, &ctx->Hint, sizeof(struct gl_hint_attrib) );
 252       newnode = new_attrib_node( GL_HINT_BIT );
 253       newnode->data = attr;
 254       newnode->next = head;
 255       head = newnode;
 256    }
 257
 258    if (mask & GL_LIGHTING_BIT) {
 259       struct gl_light_attrib *attr;
 260       attr = MALLOC_STRUCT( gl_light_attrib );
 261       MEMCPY( attr, &ctx->Light, sizeof(struct gl_light_attrib) );
 262       newnode = new_attrib_node( GL_LIGHTING_BIT );
 263       newnode->data = attr;
 264       newnode->next = head;
 265       head = newnode;
 266    }
 267
 268    if (mask & GL_LINE_BIT) {
 269       struct gl_line_attrib *attr;
 270       attr = MALLOC_STRUCT( gl_line_attrib );
 271       MEMCPY( attr, &ctx->Line, sizeof(struct gl_line_attrib) );
 272       newnode = new_attrib_node( GL_LINE_BIT );
 273       newnode->data = attr;
 274       newnode->next = head;
 275       head = newnode;
 276    }
 277
 278    if (mask & GL_LIST_BIT) {
 279       struct gl_list_attrib *attr;
 280       attr = MALLOC_STRUCT( gl_list_attrib );
 281       MEMCPY( attr, &ctx->List, sizeof(struct gl_list_attrib) );
 282       newnode = new_attrib_node( GL_LIST_BIT );
 283       newnode->data = attr;
 284       newnode->next = head;
 285       head = newnode;
 286    }
 287
 288    if (mask & GL_PIXEL_MODE_BIT) {
 289       struct gl_pixel_attrib *attr;
 290       attr = MALLOC_STRUCT( gl_pixel_attrib );
 291       MEMCPY( attr, &ctx->Pixel, sizeof(struct gl_pixel_attrib) );
 292       newnode = new_attrib_node( GL_PIXEL_MODE_BIT );
 293       newnode->data = attr;
 294       newnode->next = head;
 295       head = newnode;
 296    }
 297
 298    if (mask & GL_POINT_BIT) {
 299       struct gl_point_attrib *attr;
 300       attr = MALLOC_STRUCT( gl_point_attrib );
 301       MEMCPY( attr, &ctx->Point, sizeof(struct gl_point_attrib) );
 302       newnode = new_attrib_node( GL_POINT_BIT );
 303       newnode->data = attr;
 304       newnode->next = head;
 305       head = newnode;
 306    }
 307
 308    if (mask & GL_POLYGON_BIT) {
 309       struct gl_polygon_attrib *attr;
 310       attr = MALLOC_STRUCT( gl_polygon_attrib );
 311       MEMCPY( attr, &ctx->Polygon, sizeof(struct gl_polygon_attrib) );
 312       newnode = new_attrib_node( GL_POLYGON_BIT );
 313       newnode->data = attr;
 314       newnode->next = head;
 315       head = newnode;
 316    }
 317
 318    if (mask & GL_POLYGON_STIPPLE_BIT) {
 319       GLuint *stipple;
 320       stipple = (GLuint *) MALLOC( 32*sizeof(GLuint) );
 321       MEMCPY( stipple, ctx->PolygonStipple, 32*sizeof(GLuint) );
 322       newnode = new_attrib_node( GL_POLYGON_STIPPLE_BIT );
 323       newnode->data = stipple;
 324       newnode->next = head;
 325       head = newnode;
 326    }
 327
 328    if (mask & GL_SCISSOR_BIT) {
 329       struct gl_scissor_attrib *attr;
 330       attr = MALLOC_STRUCT( gl_scissor_attrib );
 331       MEMCPY( attr, &ctx->Scissor, sizeof(struct gl_scissor_attrib) );
 332       newnode = new_attrib_node( GL_SCISSOR_BIT );
 333       newnode->data = attr;
 334       newnode->next = head;
 335       head = newnode;
 336    }
 337
 338    if (mask & GL_STENCIL_BUFFER_BIT) {
 339       struct gl_stencil_attrib *attr;
 340       attr = MALLOC_STRUCT( gl_stencil_attrib );
 341       MEMCPY( attr, &ctx->Stencil, sizeof(struct gl_stencil_attrib) );
 342       newnode = new_attrib_node( GL_STENCIL_BUFFER_BIT );
 343       newnode->data = attr;
 344       newnode->next = head;
 345       head = newnode;
 346    }
 347
 348    if (mask & GL_TEXTURE_BIT) {
 349       struct gl_texture_attrib *attr;
 350       GLuint u;
 351       /* Take care of texture object reference counters */
 352       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 353          ctx->Texture.Unit[u].Current1D->RefCount++;
 354          ctx->Texture.Unit[u].Current2D->RefCount++;
 355          ctx->Texture.Unit[u].Current3D->RefCount++;
 356          ctx->Texture.Unit[u].CurrentCubeMap->RefCount++;
 357       }
 358       attr = MALLOC_STRUCT( gl_texture_attrib );
 359       MEMCPY( attr, &ctx->Texture, sizeof(struct gl_texture_attrib) );
 360       /* copy state of the currently bound texture objects */
 361       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 362          copy_texobj_state(&attr->Unit[u].Saved1D, attr->Unit[u].Current1D);
 363          copy_texobj_state(&attr->Unit[u].Saved2D, attr->Unit[u].Current2D);
 364          copy_texobj_state(&attr->Unit[u].Saved3D, attr->Unit[u].Current3D);
 365          copy_texobj_state(&attr->Unit[u].SavedCubeMap, attr->Unit[u].CurrentCubeMap);
 366       }
 367       newnode = new_attrib_node( GL_TEXTURE_BIT );
 368       newnode->data = attr;
 369       newnode->next = head;
 370       head = newnode;
 371    }
 372
 373    if (mask & GL_TRANSFORM_BIT) {
 374       struct gl_transform_attrib *attr;
 375       attr = MALLOC_STRUCT( gl_transform_attrib );
 376       MEMCPY( attr, &ctx->Transform, sizeof(struct gl_transform_attrib) );
 377       newnode = new_attrib_node( GL_TRANSFORM_BIT );
 378       newnode->data = attr;
 379       newnode->next = head;
 380       head = newnode;
 381    }
 382
 383    if (mask & GL_VIEWPORT_BIT) {
 384       struct gl_viewport_attrib *attr;
 385       attr = MALLOC_STRUCT( gl_viewport_attrib );
 386       MEMCPY( attr, &ctx->Viewport, sizeof(struct gl_viewport_attrib) );
 387       newnode = new_attrib_node( GL_VIEWPORT_BIT );
 388       newnode->data = attr;
 389       newnode->next = head;
 390       head = newnode;
 391    }
 392
 393    ctx->AttribStack[ctx->AttribStackDepth] = head;
 394    ctx->AttribStackDepth++;
 395 }
 396
 397
 398
 399 static void
 400 pop_enable_group(GLcontext *ctx, const struct gl_enable_attrib *enable)
 401 {
 402    GLuint i;
 403
 404 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM)          \
 405         if ((VALUE) != (NEWVALUE)) {                    \
 406            _mesa_set_enable( ctx, ENUM, (NEWVALUE) );   \
 407         }
 408
 409    TEST_AND_UPDATE(ctx->Color.AlphaEnabled, enable->AlphaTest, GL_ALPHA_TEST);
 410    TEST_AND_UPDATE(ctx->Transform.Normalize, enable->AutoNormal, GL_NORMALIZE);
 411    TEST_AND_UPDATE(ctx->Color.BlendEnabled, enable->Blend, GL_BLEND);
 412
 413    for (i=0;i<MAX_CLIP_PLANES;i++) {
 414       if (ctx->Transform.ClipEnabled[i] != enable->ClipPlane[i])
 415          _mesa_set_enable(ctx, (GLenum) (GL_CLIP_PLANE0 + i),
 416                           enable->ClipPlane[i]);
 417    }
 418
 419    TEST_AND_UPDATE(ctx->Light.ColorMaterialEnabled, enable->ColorMaterial,
 420                    GL_COLOR_MATERIAL);
 421    TEST_AND_UPDATE(ctx->Polygon.CullFlag, enable->CullFace, GL_CULL_FACE);
 422    TEST_AND_UPDATE(ctx->Depth.Test, enable->DepthTest, GL_DEPTH_TEST);
 423    TEST_AND_UPDATE(ctx->Color.DitherFlag, enable->Dither, GL_DITHER);
 424    TEST_AND_UPDATE(ctx->Pixel.Convolution1DEnabled, enable->Convolution1D,
 425                    GL_CONVOLUTION_1D);
 426    TEST_AND_UPDATE(ctx->Pixel.Convolution2DEnabled, enable->Convolution2D,
 427                    GL_CONVOLUTION_2D);
 428    TEST_AND_UPDATE(ctx->Pixel.Separable2DEnabled, enable->Separable2D,
 429                    GL_SEPARABLE_2D);
 430    TEST_AND_UPDATE(ctx->Fog.Enabled, enable->Fog, GL_FOG);
 431    TEST_AND_UPDATE(ctx->Light.Enabled, enable->Lighting, GL_LIGHTING);
 432    TEST_AND_UPDATE(ctx->Line.SmoothFlag, enable->LineSmooth, GL_LINE_SMOOTH);
 433    TEST_AND_UPDATE(ctx->Line.StippleFlag, enable->LineStipple,
 434                    GL_LINE_STIPPLE);
 435    TEST_AND_UPDATE(ctx->Color.IndexLogicOpEnabled, enable->IndexLogicOp,
 436                    GL_INDEX_LOGIC_OP);
 437    TEST_AND_UPDATE(ctx->Color.ColorLogicOpEnabled, enable->ColorLogicOp,
 438                    GL_COLOR_LOGIC_OP);
 439    TEST_AND_UPDATE(ctx->Eval.Map1Color4, enable->Map1Color4, GL_MAP1_COLOR_4);
 440    TEST_AND_UPDATE(ctx->Eval.Map1Index, enable->Map1Index, GL_MAP1_INDEX);
 441    TEST_AND_UPDATE(ctx->Eval.Map1Normal, enable->Map1Normal, GL_MAP1_NORMAL);
 442    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord1, enable->Map1TextureCoord1,
 443                    GL_MAP1_TEXTURE_COORD_1);
 444    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord2, enable->Map1TextureCoord2,
 445                    GL_MAP1_TEXTURE_COORD_2);
 446    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord3, enable->Map1TextureCoord3,
 447                    GL_MAP1_TEXTURE_COORD_3);
 448    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord4, enable->Map1TextureCoord4,
 449                    GL_MAP1_TEXTURE_COORD_4);
 450    TEST_AND_UPDATE(ctx->Eval.Map1Vertex3, enable->Map1Vertex3,
 451                    GL_MAP1_VERTEX_3);
 452    TEST_AND_UPDATE(ctx->Eval.Map1Vertex4, enable->Map1Vertex4,
 453                    GL_MAP1_VERTEX_4);
 454    TEST_AND_UPDATE(ctx->Eval.Map2Color4, enable->Map2Color4, GL_MAP2_COLOR_4);
 455    TEST_AND_UPDATE(ctx->Eval.Map2Index, enable->Map2Index, GL_MAP2_INDEX);
 456    TEST_AND_UPDATE(ctx->Eval.Map2Normal, enable->Map2Normal, GL_MAP2_NORMAL);
 457    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord1, enable->Map2TextureCoord1,
 458                    GL_MAP2_TEXTURE_COORD_1);
 459    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord2, enable->Map2TextureCoord2,
 460                    GL_MAP2_TEXTURE_COORD_2);
 461    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord3, enable->Map2TextureCoord3,
 462                    GL_MAP2_TEXTURE_COORD_3);
 463    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord4, enable->Map2TextureCoord4,
 464                    GL_MAP2_TEXTURE_COORD_4);
 465    TEST_AND_UPDATE(ctx->Eval.Map2Vertex3, enable->Map2Vertex3,
 466                    GL_MAP2_VERTEX_3);
 467    TEST_AND_UPDATE(ctx->Eval.Map2Vertex4, enable->Map2Vertex4,
 468                    GL_MAP2_VERTEX_4);
 469    TEST_AND_UPDATE(ctx->Transform.Normalize, enable->Normalize, GL_NORMALIZE);
 470    TEST_AND_UPDATE(ctx->Transform.RescaleNormals, enable->RescaleNormals,
 471                    GL_RESCALE_NORMAL_EXT);
 472    TEST_AND_UPDATE(ctx->Pixel.PixelTextureEnabled, enable->PixelTexture,
 473                    GL_POINT_SMOOTH);
 474    TEST_AND_UPDATE(ctx->Point.SmoothFlag, enable->PointSmooth,
 475                    GL_POINT_SMOOTH);
 476    TEST_AND_UPDATE(ctx->Polygon.OffsetPoint, enable->PolygonOffsetPoint,
 477                    GL_POLYGON_OFFSET_POINT);
 478    TEST_AND_UPDATE(ctx->Polygon.OffsetLine, enable->PolygonOffsetLine,
 479                    GL_POLYGON_OFFSET_LINE);
 480    TEST_AND_UPDATE(ctx->Polygon.OffsetFill, enable->PolygonOffsetFill,
 481                    GL_POLYGON_OFFSET_FILL);
 482    TEST_AND_UPDATE(ctx->Polygon.SmoothFlag, enable->PolygonSmooth,
 483                    GL_POLYGON_SMOOTH);
 484    TEST_AND_UPDATE(ctx->Polygon.StippleFlag, enable->PolygonStipple,
 485                    GL_POLYGON_STIPPLE);
 486    TEST_AND_UPDATE(ctx->Scissor.Enabled, enable->Scissor, GL_SCISSOR_TEST);
 487    TEST_AND_UPDATE(ctx->Stencil.Enabled, enable->Stencil, GL_STENCIL_TEST);
 488 #undef TEST_AND_UPDATE
 489
 490    /* texture unit enables */
 491    for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
 492       if (ctx->Texture.Unit[i].Enabled != enable->Texture[i]) {
 493          ctx->Texture.Unit[i].Enabled = enable->Texture[i];
 494          if (ctx->Driver.Enable) {
 495             if (ctx->Driver.ActiveTexture) {
 496                (*ctx->Driver.ActiveTexture)(ctx, i);
 497             }
 498             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_1D,
 499                              (GLboolean) (enable->Texture[i] & TEXTURE0_1D) );
 500             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_2D,
 501                              (GLboolean) (enable->Texture[i] & TEXTURE0_2D) );
 502             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_3D,
 503                              (GLboolean) (enable->Texture[i] & TEXTURE0_3D) );
 504          }
 505       }
 506
 507       if (ctx->Texture.Unit[i].TexGenEnabled != enable->TexGen[i]) {
 508          ctx->Texture.Unit[i].TexGenEnabled = enable->TexGen[i];
 509          if (ctx->Driver.Enable) {
 510             if (ctx->Driver.ActiveTexture) {
 511                (*ctx->Driver.ActiveTexture)(ctx, i);
 512             }
 513             if (enable->TexGen[i] & S_BIT)
 514                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_TRUE);
 515             else
 516                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_FALSE);
 517             if (enable->TexGen[i] & T_BIT)
 518                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_TRUE);
 519             else
 520                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_FALSE);
 521             if (enable->TexGen[i] & R_BIT)
 522                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_TRUE);
 523             else
 524                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_FALSE);
 525             if (enable->TexGen[i] & Q_BIT)
 526                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_TRUE);
 527             else
 528                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_FALSE);
 529          }
 530       }
 531    }
 532
 533    if (ctx->Driver.ActiveTexture) {
 534       (*ctx->Driver.ActiveTexture)(ctx, ctx->Texture.CurrentUnit);
 535    }
 536 }
 537
 538
 539
 540 /*
 541  * This function is kind of long just because we have to call a lot
 542  * of device driver functions to update device driver state.
 543  */
 544 void
 545 _mesa_PopAttrib(void)
 546 {
 547    struct gl_attrib_node *attr, *next;
 548    GET_CURRENT_CONTEXT(ctx);
 549
 550    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPopAttrib");
 551
 552
 553    if (ctx->AttribStackDepth==0) {
 554       gl_error( ctx, GL_STACK_UNDERFLOW, "glPopAttrib" );
 555       return;
 556    }
 557
 558    ctx->AttribStackDepth--;
 559    attr = ctx->AttribStack[ctx->AttribStackDepth];
 560
 561    while (attr) {
 562
 563       if (MESA_VERBOSE&VERBOSE_API)
 564          fprintf(stderr, "glPopAttrib %s\n", gl_lookup_enum_by_nr(attr->kind));
 565
 566       switch (attr->kind) {
 567          case GL_ACCUM_BUFFER_BIT:
 568             MEMCPY( &ctx->Accum, attr->data, sizeof(struct gl_accum_attrib) );
 569             ctx->NewState |= _NEW_ACCUM;
 570             break;
 571          case GL_COLOR_BUFFER_BIT:
 572             {
 573                GLenum oldDrawBuffer = ctx->Color.DrawBuffer;
 574                GLenum oldAlphaFunc = ctx->Color.AlphaFunc;
 575                GLchan oldAlphaRef = ctx->Color.AlphaRef;
 576                GLenum oldBlendSrc = ctx->Color.BlendSrcRGB;
 577                GLenum oldBlendDst = ctx->Color.BlendDstRGB;
 578                GLenum oldLogicOp = ctx->Color.LogicOp;
 579                MEMCPY( &ctx->Color, attr->data,
 580                        sizeof(struct gl_colorbuffer_attrib) );
 581                ctx->NewState |= _NEW_COLOR;
 582                if (ctx->Color.DrawBuffer != oldDrawBuffer) {
 583                   _mesa_DrawBuffer( ctx->Color.DrawBuffer);
 584                }
 585                if ((ctx->Color.BlendSrcRGB != oldBlendSrc ||
 586                     ctx->Color.BlendDstRGB != oldBlendDst) &&
 587                    ctx->Driver.BlendFunc)
 588                   (*ctx->Driver.BlendFunc)( ctx, ctx->Color.BlendSrcRGB,
 589                                             ctx->Color.BlendDstRGB);
 590                if (ctx->Color.LogicOp != oldLogicOp &&
 591                    ctx->Driver.LogicOpcode) {
 592                   ctx->Driver.LogicOpcode( ctx, ctx->Color.LogicOp );
 593                }
 594                if (ctx->Visual.RGBAflag) {
 595                   GLchan r = (GLint) (ctx->Color.ClearColor[0] * CHAN_MAXF);
 596                   GLchan g = (GLint) (ctx->Color.ClearColor[1] * CHAN_MAXF);
 597                   GLchan b = (GLint) (ctx->Color.ClearColor[2] * CHAN_MAXF);
 598                   GLchan a = (GLint) (ctx->Color.ClearColor[3] * CHAN_MAXF);
 599                   (*ctx->Driver.ClearColor)( ctx, r, g, b, a );
 600                   if ((ctx->Color.AlphaFunc != oldAlphaFunc ||
 601                        ctx->Color.AlphaRef != oldAlphaRef) &&
 602                       ctx->Driver.AlphaFunc)
 603                      (*ctx->Driver.AlphaFunc)( ctx, ctx->Color.AlphaFunc,
 604                                               ctx->Color.AlphaRef / CHAN_MAXF);
 605                   if (ctx->Driver.ColorMask) {
 606                      (*ctx->Driver.ColorMask)(ctx,
 607                                               ctx->Color.ColorMask[0],
 608                                               ctx->Color.ColorMask[1],
 609                                               ctx->Color.ColorMask[2],
 610                                               ctx->Color.ColorMask[3]);
 611                   }
 612                }
 613                else {
 614                   (*ctx->Driver.ClearIndex)( ctx, ctx->Color.ClearIndex);
 615                }
 616             }
 617             break;
 618          case GL_CURRENT_BIT:
 619             FLUSH_TNL( ctx, FLUSH_UPDATE_CURRENT );
 620             MEMCPY( &ctx->Current, attr->data,
 621                     sizeof(struct gl_current_attrib) );
 622             break;
 623          case GL_DEPTH_BUFFER_BIT:
 624             {
 625                GLboolean oldDepthTest = ctx->Depth.Test;
 626                GLenum oldDepthFunc = ctx->Depth.Func;
 627                GLboolean oldDepthMask = ctx->Depth.Mask;
 628                GLfloat oldDepthClear = ctx->Depth.Clear;
 629                MEMCPY( &ctx->Depth, attr->data,
 630                        sizeof(struct gl_depthbuffer_attrib) );
 631                ctx->NewState |= _NEW_DEPTH;
 632                if (ctx->Depth.Test != oldDepthTest && ctx->Driver.Enable)
 633                   (*ctx->Driver.Enable)( ctx, GL_DEPTH_TEST, ctx->Depth.Test);
 634                if (ctx->Depth.Func != oldDepthFunc && ctx->Driver.DepthFunc)
 635                   (*ctx->Driver.DepthFunc)( ctx, ctx->Depth.Func );
 636                if (ctx->Depth.Mask != oldDepthMask && ctx->Driver.DepthMask)
 637                   (*ctx->Driver.DepthMask)( ctx, ctx->Depth.Mask );
 638                if (ctx->Depth.Clear != oldDepthClear && ctx->Driver.ClearDepth)
 639                   (*ctx->Driver.ClearDepth)( ctx, ctx->Depth.Clear );
 640             }
 641             break;
 642          case GL_ENABLE_BIT:
 643             {
 644                const struct gl_enable_attrib *enable;
 645                enable = (const struct gl_enable_attrib *) attr->data;
 646                pop_enable_group(ctx, enable);
 647                ctx->NewState |= _NEW_ALL;
 648             }
 649             break;
 650          case GL_EVAL_BIT:
 651             MEMCPY( &ctx->Eval, attr->data, sizeof(struct gl_eval_attrib) );
 652             ctx->NewState |= _NEW_EVAL;
 653             break;
 654          case GL_FOG_BIT:
 655             {
 656                GLboolean anyChange = (GLboolean) (memcmp( &ctx->Fog, attr->data, sizeof(struct gl_fog_attrib) ) != 0);
 657                MEMCPY( &ctx->Fog, attr->data, sizeof(struct gl_fog_attrib) );
 658                ctx->NewState |= _NEW_FOG;
 659                if (anyChange && ctx->Driver.Fogfv) {
 660                   const GLfloat mode = (GLfloat) ctx->Fog.Mode;
 661                   const GLfloat density = ctx->Fog.Density;
 662                   const GLfloat start = ctx->Fog.Start;
 663                   const GLfloat end = ctx->Fog.End;
 664                   const GLfloat index = ctx->Fog.Index;
 665                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_MODE, &mode);
 666                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_DENSITY, &density );
 667                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_START, &start );
 668                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_END, &end );
 669                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_INDEX, &index );
 670                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_COLOR, ctx->Fog.Color );
 671                }
 672                ctx->_Enabled &= ~ENABLE_FOG;
 673                if (ctx->Fog.Enabled) ctx->_Enabled |= ENABLE_FOG;
 674             }
 675             break;
 676          case GL_HINT_BIT:
 677             MEMCPY( &ctx->Hint, attr->data, sizeof(struct gl_hint_attrib) );
 678             ctx->NewState |= _NEW_HINT;
 679             if (ctx->Driver.Hint) {
 680                (*ctx->Driver.Hint)( ctx, GL_PERSPECTIVE_CORRECTION_HINT,
 681                                     ctx->Hint.PerspectiveCorrection );
 682                (*ctx->Driver.Hint)( ctx, GL_POINT_SMOOTH_HINT,
 683                                     ctx->Hint.PointSmooth);
 684                (*ctx->Driver.Hint)( ctx, GL_LINE_SMOOTH_HINT,
 685                                     ctx->Hint.LineSmooth );
 686                (*ctx->Driver.Hint)( ctx, GL_POLYGON_SMOOTH_HINT,
 687                                     ctx->Hint.PolygonSmooth );
 688                (*ctx->Driver.Hint)( ctx, GL_FOG_HINT, ctx->Hint.Fog );
 689             }
 690             break;
 691          case GL_LIGHTING_BIT:
 692             MEMCPY( &ctx->Light, attr->data, sizeof(struct gl_light_attrib) );
 693             ctx->NewState |= _NEW_LIGHT;
 694             if (ctx->Driver.Enable) {
 695                GLuint i;
 696                for (i = 0; i < MAX_LIGHTS; i++) {
 697                   GLenum light = (GLenum) (GL_LIGHT0 + i);
 698                   (*ctx->Driver.Enable)( ctx, light, ctx->Light.Light[i].Enabled );
 699                }
 700                (*ctx->Driver.Enable)( ctx, GL_LIGHTING, ctx->Light.Enabled );
 701             }
 702             if (ctx->Light.ShadeModel == GL_FLAT)
 703                ctx->_TriangleCaps |= DD_FLATSHADE;
 704             else
 705                ctx->_TriangleCaps &= ~DD_FLATSHADE;
 706             if (ctx->Driver.ShadeModel)
 707                (*ctx->Driver.ShadeModel)(ctx, ctx->Light.ShadeModel);
 708             ctx->_Enabled &= ~ENABLE_LIGHT;
 709             if (ctx->Light.Enabled && !is_empty_list(&ctx->Light.EnabledList))
 710                ctx->_Enabled |= ENABLE_LIGHT;
 711             break;
 712          case GL_LINE_BIT:
 713             MEMCPY( &ctx->Line, attr->data, sizeof(struct gl_line_attrib) );
 714             ctx->NewState |= _NEW_LINE;
 715             if (ctx->Driver.Enable) {
 716                (*ctx->Driver.Enable)( ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag );
 717                (*ctx->Driver.Enable)( ctx, GL_LINE_STIPPLE, ctx->Line.StippleFlag );
 718             }
 719             if (ctx->Driver.LineStipple)
 720                (*ctx->Driver.LineStipple)(ctx, ctx->Line.StippleFactor,
 721                                           ctx->Line.StipplePattern);
 722             if (ctx->Driver.LineWidth)
 723                (*ctx->Driver.LineWidth)(ctx, ctx->Line.Width);
 724             break;
 725          case GL_LIST_BIT:
 726             MEMCPY( &ctx->List, attr->data, sizeof(struct gl_list_attrib) );
 727             break;
 728          case GL_PIXEL_MODE_BIT:
 729             MEMCPY( &ctx->Pixel, attr->data, sizeof(struct gl_pixel_attrib) );
 730             ctx->NewState |= _NEW_PIXEL;
 731             break;
 732          case GL_POINT_BIT:
 733             MEMCPY( &ctx->Point, attr->data, sizeof(struct gl_point_attrib) );
 734             ctx->NewState |= _NEW_POINT;
 735             if (ctx->Driver.Enable)
 736                (*ctx->Driver.Enable)( ctx, GL_POINT_SMOOTH, ctx->Point.SmoothFlag );
 737             break;
 738          case GL_POLYGON_BIT:
 739             {
 740                GLenum oldFrontMode = ctx->Polygon.FrontMode;
 741                GLenum oldBackMode = ctx->Polygon.BackMode;
 742                MEMCPY( &ctx->Polygon, attr->data,
 743                        sizeof(struct gl_polygon_attrib) );
 744                ctx->NewState |= _NEW_POLYGON;
 745                if ((ctx->Polygon.FrontMode != oldFrontMode ||
 746                     ctx->Polygon.BackMode != oldBackMode) &&
 747                    ctx->Driver.PolygonMode) {
 748                   (*ctx->Driver.PolygonMode)( ctx, GL_FRONT, ctx->Polygon.FrontMode);
 749                   (*ctx->Driver.PolygonMode)( ctx, GL_BACK, ctx->Polygon.BackMode);
 750                }
 751                if (ctx->Driver.CullFace)
 752                   ctx->Driver.CullFace( ctx, ctx->Polygon.CullFaceMode );
 753
 754                if (ctx->Driver.FrontFace)
 755                   ctx->Driver.FrontFace( ctx, ctx->Polygon.FrontFace );
 756
 757                if (ctx->Driver.Enable)
 758                   (*ctx->Driver.Enable)( ctx, GL_POLYGON_SMOOTH, ctx->Polygon.SmoothFlag );
 759             }
 760             break;
 761          case GL_POLYGON_STIPPLE_BIT:
 762             MEMCPY( ctx->PolygonStipple, attr->data, 32*sizeof(GLuint) );
 763             ctx->NewState |= _NEW_POLYGONSTIPPLE;
 764             if (ctx->Driver.PolygonStipple)
 765                ctx->Driver.PolygonStipple( ctx, (const GLubyte *) attr->data );
 766             break;
 767          case GL_SCISSOR_BIT:
 768             MEMCPY( &ctx->Scissor, attr->data,
 769                     sizeof(struct gl_scissor_attrib) );
 770             ctx->NewState |= _NEW_SCISSOR;
 771             if (ctx->Driver.Enable)
 772                (*ctx->Driver.Enable)( ctx, GL_SCISSOR_TEST, ctx->Scissor.Enabled );
 773             if (ctx->Driver.Scissor)
 774                ctx->Driver.Scissor( ctx, ctx->Scissor.X, ctx->Scissor.Y,
 775                                     ctx->Scissor.Width, ctx->Scissor.Height );
 776             break;
 777          case GL_STENCIL_BUFFER_BIT:
 778             MEMCPY( &ctx->Stencil, attr->data,
 779                     sizeof(struct gl_stencil_attrib) );
 780             ctx->NewState |= _NEW_STENCIL;
 781             if (ctx->Driver.StencilFunc)
 782                (*ctx->Driver.StencilFunc)( ctx, ctx->Stencil.Function,
 783                                    ctx->Stencil.Ref, ctx->Stencil.ValueMask);
 784             if (ctx->Driver.StencilMask)
 785                (*ctx->Driver.StencilMask)( ctx, ctx->Stencil.WriteMask );
 786             if (ctx->Driver.StencilOp)
 787                (*ctx->Driver.StencilOp)( ctx, ctx->Stencil.FailFunc,
 788                               ctx->Stencil.ZFailFunc, ctx->Stencil.ZPassFunc);
 789             if (ctx->Driver.ClearStencil)
 790                (*ctx->Driver.ClearStencil)( ctx, ctx->Stencil.Clear );
 791             if (ctx->Driver.Enable)
 792                (*ctx->Driver.Enable)( ctx, GL_STENCIL_TEST, ctx->Stencil.Enabled );
 793             ctx->_TriangleCaps &= ~DD_STENCIL;
 794             if (ctx->Stencil.Enabled)
 795                ctx->_TriangleCaps |= DD_STENCIL;
 796
 797             break;
 798          case GL_TRANSFORM_BIT:
 799             MEMCPY( &ctx->Transform, attr->data,
 800                     sizeof(struct gl_transform_attrib) );
 801             ctx->NewState |= _NEW_TRANSFORM;
 802             if (ctx->Driver.Enable) {
 803                (*ctx->Driver.Enable)( ctx, GL_NORMALIZE, ctx->Transform.Normalize );
 804                (*ctx->Driver.Enable)( ctx, GL_RESCALE_NORMAL_EXT, ctx->Transform.RescaleNormals );
 805             }
 806             ctx->_Enabled &= ~(ENABLE_NORMALIZE|ENABLE_RESCALE);
 807             if (ctx->Transform.Normalize) ctx->_Enabled |= ENABLE_NORMALIZE;
 808             if (ctx->Transform.RescaleNormals) ctx->_Enabled |= ENABLE_RESCALE;
 809             break;
 810          case GL_TEXTURE_BIT:
 811             /* Take care of texture object reference counters */
 812             {
 813                GLuint u;
 814                for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 815                   ctx->Texture.Unit[u].Current1D->RefCount--;
 816                   ctx->Texture.Unit[u].Current2D->RefCount--;
 817                   ctx->Texture.Unit[u].Current3D->RefCount--;
 818                   ctx->Texture.Unit[u].CurrentCubeMap->RefCount--;
 819                }
 820                MEMCPY( &ctx->Texture, attr->data,
 821                        sizeof(struct gl_texture_attrib) );
 822                ctx->NewState |= _NEW_TEXTURE;
 823                /* restore state of the currently bound texture objects */
 824                for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 825                   copy_texobj_state( ctx->Texture.Unit[u].Current1D,
 826                                      &(ctx->Texture.Unit[u].Saved1D) );
 827                   copy_texobj_state( ctx->Texture.Unit[u].Current2D,
 828                                      &(ctx->Texture.Unit[u].Saved2D) );
 829                   copy_texobj_state( ctx->Texture.Unit[u].Current3D,
 830                                      &(ctx->Texture.Unit[u].Saved3D) );
 831                   copy_texobj_state( ctx->Texture.Unit[u].CurrentCubeMap,
 832                                      &(ctx->Texture.Unit[u].SavedCubeMap) );
 833
 834                   ctx->Texture.Unit[u].Current1D->Complete = GL_FALSE;
 835                   ctx->Texture.Unit[u].Current2D->Complete = GL_FALSE;
 836                   ctx->Texture.Unit[u].Current3D->Complete = GL_FALSE;
 837                   ctx->Texture.Unit[u].CurrentCubeMap->Complete = GL_FALSE;
 838                }
 839             }
 840             break;
 841          case GL_VIEWPORT_BIT:
 842          {
 843             struct gl_viewport_attrib *v =
 844                (struct gl_viewport_attrib *)attr->data;
 845
 846             ctx->NewState |= _NEW_VIEWPORT;
 847             _mesa_Viewport( v->X, v->Y, v->Width, v->Height );
 848             _mesa_DepthRange( v->Near, v->Far );
 849             break;
 850          }
 851          default:
 852             gl_problem( ctx, "Bad attrib flag in PopAttrib");
 853             break;
 854       }
 855
 856       next = attr->next;
 857       FREE( attr->data );
 858       FREE( attr );
 859       attr = next;
 860    }
 861 }
 862
 863
 864 #define GL_CLIENT_PACK_BIT (1<<20)
 865 #define GL_CLIENT_UNPACK_BIT (1<<21)
 866
 867
 868 void
 869 _mesa_PushClientAttrib(GLbitfield mask)
 870 {
 871    struct gl_attrib_node *newnode;
 872    struct gl_attrib_node *head;
 873
 874    GET_CURRENT_CONTEXT(ctx);
 875    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPushClientAttrib");
 876
 877    if (ctx->ClientAttribStackDepth>=MAX_CLIENT_ATTRIB_STACK_DEPTH) {
 878       gl_error( ctx, GL_STACK_OVERFLOW, "glPushClientAttrib" );
 879       return;
 880    }
 881
 882    /* Build linked list of attribute nodes which save all attribute */
 883    /* groups specified by the mask. */
 884    head = NULL;
 885
 886    if (mask & GL_CLIENT_PIXEL_STORE_BIT) {
 887       struct gl_pixelstore_attrib *attr;
 888       /* packing attribs */
 889       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
 890       MEMCPY( attr, &ctx->Pack, sizeof(struct gl_pixelstore_attrib) );
 891       newnode = new_attrib_node( GL_CLIENT_PACK_BIT );
 892       newnode->data = attr;
 893       newnode->next = head;
 894       head = newnode;
 895       /* unpacking attribs */
 896       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
 897       MEMCPY( attr, &ctx->Unpack, sizeof(struct gl_pixelstore_attrib) );
 898       newnode = new_attrib_node( GL_CLIENT_UNPACK_BIT );
 899       newnode->data = attr;
 900       newnode->next = head;
 901       head = newnode;
 902    }
 903    if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) {
 904       struct gl_array_attrib *attr;
 905       attr = MALLOC_STRUCT( gl_array_attrib );
 906       MEMCPY( attr, &ctx->Array, sizeof(struct gl_array_attrib) );
 907       newnode = new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT );
 908       newnode->data = attr;
 909       newnode->next = head;
 910       head = newnode;
 911    }
 912
 913    ctx->ClientAttribStack[ctx->ClientAttribStackDepth] = head;
 914    ctx->ClientAttribStackDepth++;
 915 }
 916
 917
 918
 919
 920 void
 921 _mesa_PopClientAttrib(void)
 922 {
 923    struct gl_attrib_node *attr, *next;
 924
 925    GET_CURRENT_CONTEXT(ctx);
 926    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPopClientAttrib");
 927
 928    if (ctx->ClientAttribStackDepth==0) {
 929       gl_error( ctx, GL_STACK_UNDERFLOW, "glPopClientAttrib" );
 930       return;
 931    }
 932
 933    ctx->ClientAttribStackDepth--;
 934    attr = ctx->ClientAttribStack[ctx->ClientAttribStackDepth];
 935
 936    while (attr) {
 937       switch (attr->kind) {
 938          case GL_CLIENT_PACK_BIT:
 939             MEMCPY( &ctx->Pack, attr->data,
 940                     sizeof(struct gl_pixelstore_attrib) );
 941             break;
 942          case GL_CLIENT_UNPACK_BIT:
 943             MEMCPY( &ctx->Unpack, attr->data,
 944                     sizeof(struct gl_pixelstore_attrib) );
 945             break;
 946          case GL_CLIENT_VERTEX_ARRAY_BIT:
 947             MEMCPY( &ctx->Array, attr->data,
 948                     sizeof(struct gl_array_attrib) );
 949             break;
 950          default:
 951             gl_problem( ctx, "Bad attrib flag in PopClientAttrib");
 952             break;
 953       }
 954
 955       next = attr->next;
 956       FREE( attr->data );
 957       FREE( attr );
 958       attr = next;
 959    }
 960
 961    ctx->NewState = _NEW_ARRAY;
 962 }
 963
 964
 965