src/mesa/main/attrib.c

   1 /* $Id: attrib.c,v 1.33 2000/11/05 18:40:57 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->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       attr = MALLOC_STRUCT( gl_current_attrib );
 140       MEMCPY( attr, &ctx->Current, sizeof(struct gl_current_attrib) );
 141       newnode = new_attrib_node( GL_CURRENT_BIT );
 142       newnode->data = attr;
 143       newnode->next = head;
 144       head = newnode;
 145    }
 146
 147    if (mask & GL_DEPTH_BUFFER_BIT) {
 148       struct gl_depthbuffer_attrib *attr;
 149       attr = MALLOC_STRUCT( gl_depthbuffer_attrib );
 150       MEMCPY( attr, &ctx->Depth, sizeof(struct gl_depthbuffer_attrib) );
 151       newnode = new_attrib_node( GL_DEPTH_BUFFER_BIT );
 152       newnode->data = attr;
 153       newnode->next = head;
 154       head = newnode;
 155    }
 156
 157    if (mask & GL_ENABLE_BIT) {
 158       struct gl_enable_attrib *attr;
 159       GLuint i;
 160       attr = MALLOC_STRUCT( gl_enable_attrib );
 161       /* Copy enable flags from all other attributes into the enable struct. */
 162       attr->AlphaTest = ctx->Color.AlphaEnabled;
 163       attr->AutoNormal = ctx->Eval.AutoNormal;
 164       attr->Blend = ctx->Color.BlendEnabled;
 165       for (i=0;i<MAX_CLIP_PLANES;i++) {
 166          attr->ClipPlane[i] = ctx->Transform.ClipEnabled[i];
 167       }
 168       attr->ColorMaterial = ctx->Light.ColorMaterialEnabled;
 169       attr->Convolution1D = ctx->Pixel.Convolution1DEnabled;
 170       attr->Convolution2D = ctx->Pixel.Convolution2DEnabled;
 171       attr->Separable2D = ctx->Pixel.Separable2DEnabled;
 172       attr->CullFace = ctx->Polygon.CullFlag;
 173       attr->DepthTest = ctx->Depth.Test;
 174       attr->Dither = ctx->Color.DitherFlag;
 175       attr->Fog = ctx->Fog.Enabled;
 176       for (i=0;i<MAX_LIGHTS;i++) {
 177          attr->Light[i] = ctx->Light.Light[i].Enabled;
 178       }
 179       attr->Lighting = ctx->Light.Enabled;
 180       attr->LineSmooth = ctx->Line.SmoothFlag;
 181       attr->LineStipple = ctx->Line.StippleFlag;
 182       attr->Histogram = ctx->Pixel.HistogramEnabled;
 183       attr->MinMax = ctx->Pixel.MinMaxEnabled;
 184       attr->IndexLogicOp = ctx->Color.IndexLogicOpEnabled;
 185       attr->ColorLogicOp = ctx->Color.ColorLogicOpEnabled;
 186       attr->Map1Color4 = ctx->Eval.Map1Color4;
 187       attr->Map1Index = ctx->Eval.Map1Index;
 188       attr->Map1Normal = ctx->Eval.Map1Normal;
 189       attr->Map1TextureCoord1 = ctx->Eval.Map1TextureCoord1;
 190       attr->Map1TextureCoord2 = ctx->Eval.Map1TextureCoord2;
 191       attr->Map1TextureCoord3 = ctx->Eval.Map1TextureCoord3;
 192       attr->Map1TextureCoord4 = ctx->Eval.Map1TextureCoord4;
 193       attr->Map1Vertex3 = ctx->Eval.Map1Vertex3;
 194       attr->Map1Vertex4 = ctx->Eval.Map1Vertex4;
 195       attr->Map2Color4 = ctx->Eval.Map2Color4;
 196       attr->Map2Index = ctx->Eval.Map2Index;
 197       attr->Map2Normal = ctx->Eval.Map2Normal;
 198       attr->Map2TextureCoord1 = ctx->Eval.Map2TextureCoord1;
 199       attr->Map2TextureCoord2 = ctx->Eval.Map2TextureCoord2;
 200       attr->Map2TextureCoord3 = ctx->Eval.Map2TextureCoord3;
 201       attr->Map2TextureCoord4 = ctx->Eval.Map2TextureCoord4;
 202       attr->Map2Vertex3 = ctx->Eval.Map2Vertex3;
 203       attr->Map2Vertex4 = ctx->Eval.Map2Vertex4;
 204       attr->Normalize = ctx->Transform.Normalize;
 205       attr->PixelTexture = ctx->Pixel.PixelTextureEnabled;
 206       attr->PointSmooth = ctx->Point.SmoothFlag;
 207       attr->PolygonOffsetPoint = ctx->Polygon.OffsetPoint;
 208       attr->PolygonOffsetLine = ctx->Polygon.OffsetLine;
 209       attr->PolygonOffsetFill = ctx->Polygon.OffsetFill;
 210       attr->PolygonSmooth = ctx->Polygon.SmoothFlag;
 211       attr->PolygonStipple = ctx->Polygon.StippleFlag;
 212       attr->RescaleNormals = ctx->Transform.RescaleNormals;
 213       attr->Scissor = ctx->Scissor.Enabled;
 214       attr->Stencil = ctx->Stencil.Enabled;
 215       for (i=0; i<MAX_TEXTURE_UNITS; i++) {
 216          attr->Texture[i] = ctx->Texture.Unit[i].Enabled;
 217          attr->TexGen[i] = ctx->Texture.Unit[i].TexGenEnabled;
 218       }
 219       newnode = new_attrib_node( GL_ENABLE_BIT );
 220       newnode->data = attr;
 221       newnode->next = head;
 222       head = newnode;
 223    }
 224
 225    if (mask & GL_EVAL_BIT) {
 226       struct gl_eval_attrib *attr;
 227       attr = MALLOC_STRUCT( gl_eval_attrib );
 228       MEMCPY( attr, &ctx->Eval, sizeof(struct gl_eval_attrib) );
 229       newnode = new_attrib_node( GL_EVAL_BIT );
 230       newnode->data = attr;
 231       newnode->next = head;
 232       head = newnode;
 233    }
 234
 235    if (mask & GL_FOG_BIT) {
 236       struct gl_fog_attrib *attr;
 237       attr = MALLOC_STRUCT( gl_fog_attrib );
 238       MEMCPY( attr, &ctx->Fog, sizeof(struct gl_fog_attrib) );
 239       newnode = new_attrib_node( GL_FOG_BIT );
 240       newnode->data = attr;
 241       newnode->next = head;
 242       head = newnode;
 243    }
 244
 245    if (mask & GL_HINT_BIT) {
 246       struct gl_hint_attrib *attr;
 247       attr = MALLOC_STRUCT( gl_hint_attrib );
 248       MEMCPY( attr, &ctx->Hint, sizeof(struct gl_hint_attrib) );
 249       newnode = new_attrib_node( GL_HINT_BIT );
 250       newnode->data = attr;
 251       newnode->next = head;
 252       head = newnode;
 253    }
 254
 255    if (mask & GL_LIGHTING_BIT) {
 256       struct gl_light_attrib *attr;
 257       attr = MALLOC_STRUCT( gl_light_attrib );
 258       MEMCPY( attr, &ctx->Light, sizeof(struct gl_light_attrib) );
 259       newnode = new_attrib_node( GL_LIGHTING_BIT );
 260       newnode->data = attr;
 261       newnode->next = head;
 262       head = newnode;
 263    }
 264
 265    if (mask & GL_LINE_BIT) {
 266       struct gl_line_attrib *attr;
 267       attr = MALLOC_STRUCT( gl_line_attrib );
 268       MEMCPY( attr, &ctx->Line, sizeof(struct gl_line_attrib) );
 269       newnode = new_attrib_node( GL_LINE_BIT );
 270       newnode->data = attr;
 271       newnode->next = head;
 272       head = newnode;
 273    }
 274
 275    if (mask & GL_LIST_BIT) {
 276       struct gl_list_attrib *attr;
 277       attr = MALLOC_STRUCT( gl_list_attrib );
 278       MEMCPY( attr, &ctx->List, sizeof(struct gl_list_attrib) );
 279       newnode = new_attrib_node( GL_LIST_BIT );
 280       newnode->data = attr;
 281       newnode->next = head;
 282       head = newnode;
 283    }
 284
 285    if (mask & GL_PIXEL_MODE_BIT) {
 286       struct gl_pixel_attrib *attr;
 287       attr = MALLOC_STRUCT( gl_pixel_attrib );
 288       MEMCPY( attr, &ctx->Pixel, sizeof(struct gl_pixel_attrib) );
 289       newnode = new_attrib_node( GL_PIXEL_MODE_BIT );
 290       newnode->data = attr;
 291       newnode->next = head;
 292       head = newnode;
 293    }
 294
 295    if (mask & GL_POINT_BIT) {
 296       struct gl_point_attrib *attr;
 297       attr = MALLOC_STRUCT( gl_point_attrib );
 298       MEMCPY( attr, &ctx->Point, sizeof(struct gl_point_attrib) );
 299       newnode = new_attrib_node( GL_POINT_BIT );
 300       newnode->data = attr;
 301       newnode->next = head;
 302       head = newnode;
 303    }
 304
 305    if (mask & GL_POLYGON_BIT) {
 306       struct gl_polygon_attrib *attr;
 307       attr = MALLOC_STRUCT( gl_polygon_attrib );
 308       MEMCPY( attr, &ctx->Polygon, sizeof(struct gl_polygon_attrib) );
 309       newnode = new_attrib_node( GL_POLYGON_BIT );
 310       newnode->data = attr;
 311       newnode->next = head;
 312       head = newnode;
 313    }
 314
 315    if (mask & GL_POLYGON_STIPPLE_BIT) {
 316       GLuint *stipple;
 317       stipple = (GLuint *) MALLOC( 32*sizeof(GLuint) );
 318       MEMCPY( stipple, ctx->PolygonStipple, 32*sizeof(GLuint) );
 319       newnode = new_attrib_node( GL_POLYGON_STIPPLE_BIT );
 320       newnode->data = stipple;
 321       newnode->next = head;
 322       head = newnode;
 323    }
 324
 325    if (mask & GL_SCISSOR_BIT) {
 326       struct gl_scissor_attrib *attr;
 327       attr = MALLOC_STRUCT( gl_scissor_attrib );
 328       MEMCPY( attr, &ctx->Scissor, sizeof(struct gl_scissor_attrib) );
 329       newnode = new_attrib_node( GL_SCISSOR_BIT );
 330       newnode->data = attr;
 331       newnode->next = head;
 332       head = newnode;
 333    }
 334
 335    if (mask & GL_STENCIL_BUFFER_BIT) {
 336       struct gl_stencil_attrib *attr;
 337       attr = MALLOC_STRUCT( gl_stencil_attrib );
 338       MEMCPY( attr, &ctx->Stencil, sizeof(struct gl_stencil_attrib) );
 339       newnode = new_attrib_node( GL_STENCIL_BUFFER_BIT );
 340       newnode->data = attr;
 341       newnode->next = head;
 342       head = newnode;
 343    }
 344
 345    if (mask & GL_TEXTURE_BIT) {
 346       struct gl_texture_attrib *attr;
 347       GLuint u;
 348       /* Take care of texture object reference counters */
 349       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 350          ctx->Texture.Unit[u].CurrentD[1]->RefCount++;
 351          ctx->Texture.Unit[u].CurrentD[2]->RefCount++;
 352          ctx->Texture.Unit[u].CurrentD[3]->RefCount++;
 353       }
 354       attr = MALLOC_STRUCT( gl_texture_attrib );
 355       MEMCPY( attr, &ctx->Texture, sizeof(struct gl_texture_attrib) );
 356       /* copy state of the currently bound texture objects */
 357       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 358          copy_texobj_state(&attr->Unit[u].Saved1D, attr->Unit[u].CurrentD[1]);
 359          copy_texobj_state(&attr->Unit[u].Saved2D, attr->Unit[u].CurrentD[2]);
 360          copy_texobj_state(&attr->Unit[u].Saved3D, attr->Unit[u].CurrentD[3]);
 361          copy_texobj_state(&attr->Unit[u].SavedCubeMap, attr->Unit[u].CurrentCubeMap);
 362       }
 363       newnode = new_attrib_node( GL_TEXTURE_BIT );
 364       newnode->data = attr;
 365       newnode->next = head;
 366       head = newnode;
 367    }
 368
 369    if (mask & GL_TRANSFORM_BIT) {
 370       struct gl_transform_attrib *attr;
 371       attr = MALLOC_STRUCT( gl_transform_attrib );
 372       MEMCPY( attr, &ctx->Transform, sizeof(struct gl_transform_attrib) );
 373       newnode = new_attrib_node( GL_TRANSFORM_BIT );
 374       newnode->data = attr;
 375       newnode->next = head;
 376       head = newnode;
 377    }
 378
 379    if (mask & GL_VIEWPORT_BIT) {
 380       struct gl_viewport_attrib *attr;
 381       attr = MALLOC_STRUCT( gl_viewport_attrib );
 382       MEMCPY( attr, &ctx->Viewport, sizeof(struct gl_viewport_attrib) );
 383       newnode = new_attrib_node( GL_VIEWPORT_BIT );
 384       newnode->data = attr;
 385       newnode->next = head;
 386       head = newnode;
 387    }
 388
 389    ctx->AttribStack[ctx->AttribStackDepth] = head;
 390    ctx->AttribStackDepth++;
 391 }
 392
 393
 394
 395 static void
 396 pop_enable_group(GLcontext *ctx, const struct gl_enable_attrib *enable)
 397 {
 398    GLuint i;
 399
 400 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM)          \
 401         if ((VALUE) != (NEWVALUE)) {                    \
 402            _mesa_set_enable( ctx, ENUM, (NEWVALUE) );   \
 403         }
 404
 405    TEST_AND_UPDATE(ctx->Color.AlphaEnabled, enable->AlphaTest, GL_ALPHA_TEST);
 406    TEST_AND_UPDATE(ctx->Transform.Normalize, enable->AutoNormal, GL_NORMALIZE);
 407    TEST_AND_UPDATE(ctx->Color.BlendEnabled, enable->Blend, GL_BLEND);
 408
 409    for (i=0;i<MAX_CLIP_PLANES;i++) {
 410       if (ctx->Transform.ClipEnabled[i] != enable->ClipPlane[i])
 411          _mesa_set_enable(ctx, (GLenum) (GL_CLIP_PLANE0 + i),
 412                           enable->ClipPlane[i]);
 413    }
 414
 415    TEST_AND_UPDATE(ctx->Light.ColorMaterialEnabled, enable->ColorMaterial,
 416                    GL_COLOR_MATERIAL);
 417    TEST_AND_UPDATE(ctx->Polygon.CullFlag, enable->CullFace, GL_CULL_FACE);
 418    TEST_AND_UPDATE(ctx->Depth.Test, enable->DepthTest, GL_DEPTH_TEST);
 419    TEST_AND_UPDATE(ctx->Color.DitherFlag, enable->Dither, GL_DITHER);
 420    TEST_AND_UPDATE(ctx->Pixel.Convolution1DEnabled, enable->Convolution1D,
 421                    GL_CONVOLUTION_1D);
 422    TEST_AND_UPDATE(ctx->Pixel.Convolution2DEnabled, enable->Convolution2D,
 423                    GL_CONVOLUTION_2D);
 424    TEST_AND_UPDATE(ctx->Pixel.Separable2DEnabled, enable->Separable2D,
 425                    GL_SEPARABLE_2D);
 426    TEST_AND_UPDATE(ctx->Fog.Enabled, enable->Fog, GL_FOG);
 427    TEST_AND_UPDATE(ctx->Light.Enabled, enable->Lighting, GL_LIGHTING);
 428    TEST_AND_UPDATE(ctx->Line.SmoothFlag, enable->LineSmooth, GL_LINE_SMOOTH);
 429    TEST_AND_UPDATE(ctx->Line.StippleFlag, enable->LineStipple,
 430                    GL_LINE_STIPPLE);
 431    TEST_AND_UPDATE(ctx->Color.IndexLogicOpEnabled, enable->IndexLogicOp,
 432                    GL_INDEX_LOGIC_OP);
 433    TEST_AND_UPDATE(ctx->Color.ColorLogicOpEnabled, enable->ColorLogicOp,
 434                    GL_COLOR_LOGIC_OP);
 435    TEST_AND_UPDATE(ctx->Eval.Map1Color4, enable->Map1Color4, GL_MAP1_COLOR_4);
 436    TEST_AND_UPDATE(ctx->Eval.Map1Index, enable->Map1Index, GL_MAP1_INDEX);
 437    TEST_AND_UPDATE(ctx->Eval.Map1Normal, enable->Map1Normal, GL_MAP1_NORMAL);
 438    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord1, enable->Map1TextureCoord1,
 439                    GL_MAP1_TEXTURE_COORD_1);
 440    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord2, enable->Map1TextureCoord2,
 441                    GL_MAP1_TEXTURE_COORD_2);
 442    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord3, enable->Map1TextureCoord3,
 443                    GL_MAP1_TEXTURE_COORD_3);
 444    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord4, enable->Map1TextureCoord4,
 445                    GL_MAP1_TEXTURE_COORD_4);
 446    TEST_AND_UPDATE(ctx->Eval.Map1Vertex3, enable->Map1Vertex3,
 447                    GL_MAP1_VERTEX_3);
 448    TEST_AND_UPDATE(ctx->Eval.Map1Vertex4, enable->Map1Vertex4,
 449                    GL_MAP1_VERTEX_4);
 450    TEST_AND_UPDATE(ctx->Eval.Map2Color4, enable->Map2Color4, GL_MAP2_COLOR_4);
 451    TEST_AND_UPDATE(ctx->Eval.Map2Index, enable->Map2Index, GL_MAP2_INDEX);
 452    TEST_AND_UPDATE(ctx->Eval.Map2Normal, enable->Map2Normal, GL_MAP2_NORMAL);
 453    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord1, enable->Map2TextureCoord1,
 454                    GL_MAP2_TEXTURE_COORD_1);
 455    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord2, enable->Map2TextureCoord2,
 456                    GL_MAP2_TEXTURE_COORD_2);
 457    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord3, enable->Map2TextureCoord3,
 458                    GL_MAP2_TEXTURE_COORD_3);
 459    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord4, enable->Map2TextureCoord4,
 460                    GL_MAP2_TEXTURE_COORD_4);
 461    TEST_AND_UPDATE(ctx->Eval.Map2Vertex3, enable->Map2Vertex3,
 462                    GL_MAP2_VERTEX_3);
 463    TEST_AND_UPDATE(ctx->Eval.Map2Vertex4, enable->Map2Vertex4,
 464                    GL_MAP2_VERTEX_4);
 465    TEST_AND_UPDATE(ctx->Transform.Normalize, enable->Normalize, GL_NORMALIZE);
 466    TEST_AND_UPDATE(ctx->Transform.RescaleNormals, enable->RescaleNormals,
 467                    GL_RESCALE_NORMAL_EXT);
 468    TEST_AND_UPDATE(ctx->Pixel.PixelTextureEnabled, enable->PixelTexture,
 469                    GL_POINT_SMOOTH);
 470    TEST_AND_UPDATE(ctx->Point.SmoothFlag, enable->PointSmooth,
 471                    GL_POINT_SMOOTH);
 472    TEST_AND_UPDATE(ctx->Polygon.OffsetPoint, enable->PolygonOffsetPoint,
 473                    GL_POLYGON_OFFSET_POINT);
 474    TEST_AND_UPDATE(ctx->Polygon.OffsetLine, enable->PolygonOffsetLine,
 475                    GL_POLYGON_OFFSET_LINE);
 476    TEST_AND_UPDATE(ctx->Polygon.OffsetFill, enable->PolygonOffsetFill,
 477                    GL_POLYGON_OFFSET_FILL);
 478    TEST_AND_UPDATE(ctx->Polygon.SmoothFlag, enable->PolygonSmooth,
 479                    GL_POLYGON_SMOOTH);
 480    TEST_AND_UPDATE(ctx->Polygon.StippleFlag, enable->PolygonStipple,
 481                    GL_POLYGON_STIPPLE);
 482    TEST_AND_UPDATE(ctx->Scissor.Enabled, enable->Scissor, GL_SCISSOR_TEST);
 483    TEST_AND_UPDATE(ctx->Stencil.Enabled, enable->Stencil, GL_STENCIL_TEST);
 484 #undef TEST_AND_UPDATE
 485
 486    /* texture unit enables */
 487    for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
 488       if (ctx->Texture.Unit[i].Enabled != enable->Texture[i]) {
 489          ctx->Texture.Unit[i].Enabled = enable->Texture[i];
 490          if (ctx->Driver.Enable) {
 491             if (ctx->Driver.ActiveTexture) {
 492                (*ctx->Driver.ActiveTexture)(ctx, i);
 493             }
 494             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_1D,
 495                              (GLboolean) (enable->Texture[i] & TEXTURE0_1D) );
 496             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_2D,
 497                              (GLboolean) (enable->Texture[i] & TEXTURE0_2D) );
 498             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_3D,
 499                              (GLboolean) (enable->Texture[i] & TEXTURE0_3D) );
 500          }
 501       }
 502
 503       if (ctx->Texture.Unit[i].TexGenEnabled != enable->TexGen[i]) {
 504          ctx->Texture.Unit[i].TexGenEnabled = enable->TexGen[i];
 505          if (ctx->Driver.Enable) {
 506             if (ctx->Driver.ActiveTexture) {
 507                (*ctx->Driver.ActiveTexture)(ctx, i);
 508             }
 509             if (enable->TexGen[i] & S_BIT)
 510                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_TRUE);
 511             else
 512                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_FALSE);
 513             if (enable->TexGen[i] & T_BIT)
 514                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_TRUE);
 515             else
 516                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_FALSE);
 517             if (enable->TexGen[i] & R_BIT)
 518                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_TRUE);
 519             else
 520                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_FALSE);
 521             if (enable->TexGen[i] & Q_BIT)
 522                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_TRUE);
 523             else
 524                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_FALSE);
 525          }
 526       }
 527    }
 528
 529    if (ctx->Driver.ActiveTexture) {
 530       (*ctx->Driver.ActiveTexture)(ctx, ctx->Texture.CurrentUnit);
 531    }
 532 }
 533
 534
 535
 536 /*
 537  * This function is kind of long just because we have to call a lot
 538  * of device driver functions to update device driver state.
 539  */
 540 void
 541 _mesa_PopAttrib(void)
 542 {
 543    struct gl_attrib_node *attr, *next;
 544    GET_CURRENT_CONTEXT(ctx);
 545
 546    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPopAttrib");
 547
 548
 549    if (ctx->AttribStackDepth==0) {
 550       gl_error( ctx, GL_STACK_UNDERFLOW, "glPopAttrib" );
 551       return;
 552    }
 553
 554    ctx->AttribStackDepth--;
 555    attr = ctx->AttribStack[ctx->AttribStackDepth];
 556
 557    while (attr) {
 558
 559       if (MESA_VERBOSE&VERBOSE_API)
 560          fprintf(stderr, "glPopAttrib %s\n", gl_lookup_enum_by_nr(attr->kind));
 561
 562       switch (attr->kind) {
 563          case GL_ACCUM_BUFFER_BIT:
 564             MEMCPY( &ctx->Accum, attr->data, sizeof(struct gl_accum_attrib) );
 565             ctx->NewState |= _NEW_ACCUM;
 566             break;
 567          case GL_COLOR_BUFFER_BIT:
 568             {
 569                GLenum oldDrawBuffer = ctx->Color.DrawBuffer;
 570                GLenum oldAlphaFunc = ctx->Color.AlphaFunc;
 571                GLchan oldAlphaRef = ctx->Color.AlphaRef;
 572                GLenum oldBlendSrc = ctx->Color.BlendSrcRGB;
 573                GLenum oldBlendDst = ctx->Color.BlendDstRGB;
 574                GLenum oldLogicOp = ctx->Color.LogicOp;
 575                MEMCPY( &ctx->Color, attr->data,
 576                        sizeof(struct gl_colorbuffer_attrib) );
 577                ctx->NewState |= _NEW_COLOR;
 578                if (ctx->Color.DrawBuffer != oldDrawBuffer) {
 579                   _mesa_DrawBuffer( ctx->Color.DrawBuffer);
 580                }
 581                if ((ctx->Color.BlendSrcRGB != oldBlendSrc ||
 582                     ctx->Color.BlendDstRGB != oldBlendDst) &&
 583                    ctx->Driver.BlendFunc)
 584                   (*ctx->Driver.BlendFunc)( ctx, ctx->Color.BlendSrcRGB,
 585                                             ctx->Color.BlendDstRGB);
 586                if (ctx->Color.LogicOp != oldLogicOp &&
 587                    ctx->Driver.LogicOpcode) {
 588                   ctx->Driver.LogicOpcode( ctx, ctx->Color.LogicOp );
 589                }
 590                if (ctx->Visual.RGBAflag) {
 591                   GLchan r = (GLint) (ctx->Color.ClearColor[0] * CHAN_MAXF);
 592                   GLchan g = (GLint) (ctx->Color.ClearColor[1] * CHAN_MAXF);
 593                   GLchan b = (GLint) (ctx->Color.ClearColor[2] * CHAN_MAXF);
 594                   GLchan a = (GLint) (ctx->Color.ClearColor[3] * CHAN_MAXF);
 595                   (*ctx->Driver.ClearColor)( ctx, r, g, b, a );
 596                   if ((ctx->Color.AlphaFunc != oldAlphaFunc ||
 597                        ctx->Color.AlphaRef != oldAlphaRef) &&
 598                       ctx->Driver.AlphaFunc)
 599                      (*ctx->Driver.AlphaFunc)( ctx, ctx->Color.AlphaFunc,
 600                                               ctx->Color.AlphaRef / CHAN_MAXF);
 601                   if (ctx->Driver.ColorMask) {
 602                      (*ctx->Driver.ColorMask)(ctx,
 603                                               ctx->Color.ColorMask[0],
 604                                               ctx->Color.ColorMask[1],
 605                                               ctx->Color.ColorMask[2],
 606                                               ctx->Color.ColorMask[3]);
 607                   }
 608                }
 609                else {
 610                   (*ctx->Driver.ClearIndex)( ctx, ctx->Color.ClearIndex);
 611                }
 612             }
 613             break;
 614          case GL_CURRENT_BIT:
 615             MEMCPY( &ctx->Current, attr->data,
 616                     sizeof(struct gl_current_attrib) );
 617             break;
 618          case GL_DEPTH_BUFFER_BIT:
 619             {
 620                GLboolean oldDepthTest = ctx->Depth.Test;
 621                GLenum oldDepthFunc = ctx->Depth.Func;
 622                GLboolean oldDepthMask = ctx->Depth.Mask;
 623                GLfloat oldDepthClear = ctx->Depth.Clear;
 624                MEMCPY( &ctx->Depth, attr->data,
 625                        sizeof(struct gl_depthbuffer_attrib) );
 626                ctx->NewState |= _NEW_DEPTH;
 627                if (ctx->Depth.Test != oldDepthTest && ctx->Driver.Enable)
 628                   (*ctx->Driver.Enable)( ctx, GL_DEPTH_TEST, ctx->Depth.Test);
 629                if (ctx->Depth.Func != oldDepthFunc && ctx->Driver.DepthFunc)
 630                   (*ctx->Driver.DepthFunc)( ctx, ctx->Depth.Func );
 631                if (ctx->Depth.Mask != oldDepthMask && ctx->Driver.DepthMask)
 632                   (*ctx->Driver.DepthMask)( ctx, ctx->Depth.Mask );
 633                if (ctx->Depth.Clear != oldDepthClear && ctx->Driver.ClearDepth)
 634                   (*ctx->Driver.ClearDepth)( ctx, ctx->Depth.Clear );
 635             }
 636             break;
 637          case GL_ENABLE_BIT:
 638             {
 639                const struct gl_enable_attrib *enable;
 640                enable = (const struct gl_enable_attrib *) attr->data;
 641                pop_enable_group(ctx, enable);
 642                ctx->NewState |= _NEW_ALL;
 643             }
 644             break;
 645          case GL_EVAL_BIT:
 646             MEMCPY( &ctx->Eval, attr->data, sizeof(struct gl_eval_attrib) );
 647             ctx->NewState |= _NEW_EVAL;
 648             break;
 649          case GL_FOG_BIT:
 650             {
 651                GLboolean anyChange = (GLboolean) (memcmp( &ctx->Fog, attr->data, sizeof(struct gl_fog_attrib) ) != 0);
 652                MEMCPY( &ctx->Fog, attr->data, sizeof(struct gl_fog_attrib) );
 653                ctx->NewState |= _NEW_FOG;
 654                if (anyChange && ctx->Driver.Fogfv) {
 655                   const GLfloat mode = (GLfloat) ctx->Fog.Mode;
 656                   const GLfloat density = ctx->Fog.Density;
 657                   const GLfloat start = ctx->Fog.Start;
 658                   const GLfloat end = ctx->Fog.End;
 659                   const GLfloat index = ctx->Fog.Index;
 660                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_MODE, &mode);
 661                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_DENSITY, &density );
 662                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_START, &start );
 663                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_END, &end );
 664                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_INDEX, &index );
 665                   (*ctx->Driver.Fogfv)( ctx, GL_FOG_COLOR, ctx->Fog.Color );
 666                }
 667                ctx->_Enabled &= ~ENABLE_FOG;
 668                if (ctx->Fog.Enabled) ctx->_Enabled |= ENABLE_FOG;
 669             }
 670             break;
 671          case GL_HINT_BIT:
 672             MEMCPY( &ctx->Hint, attr->data, sizeof(struct gl_hint_attrib) );
 673             ctx->NewState |= _NEW_HINT;
 674             if (ctx->Driver.Hint) {
 675                (*ctx->Driver.Hint)( ctx, GL_PERSPECTIVE_CORRECTION_HINT,
 676                                     ctx->Hint.PerspectiveCorrection );
 677                (*ctx->Driver.Hint)( ctx, GL_POINT_SMOOTH_HINT,
 678                                     ctx->Hint.PointSmooth);
 679                (*ctx->Driver.Hint)( ctx, GL_LINE_SMOOTH_HINT,
 680                                     ctx->Hint.LineSmooth );
 681                (*ctx->Driver.Hint)( ctx, GL_POLYGON_SMOOTH_HINT,
 682                                     ctx->Hint.PolygonSmooth );
 683                (*ctx->Driver.Hint)( ctx, GL_FOG_HINT, ctx->Hint.Fog );
 684             }
 685             break;
 686          case GL_LIGHTING_BIT:
 687             MEMCPY( &ctx->Light, attr->data, sizeof(struct gl_light_attrib) );
 688             ctx->NewState |= _NEW_LIGHT;
 689             if (ctx->Driver.Enable) {
 690                GLuint i;
 691                for (i = 0; i < MAX_LIGHTS; i++) {
 692                   GLenum light = (GLenum) (GL_LIGHT0 + i);
 693                   (*ctx->Driver.Enable)( ctx, light, ctx->Light.Light[i].Enabled );
 694                }
 695                (*ctx->Driver.Enable)( ctx, GL_LIGHTING, ctx->Light.Enabled );
 696             }
 697             if (ctx->Light.ShadeModel == GL_FLAT)
 698                ctx->_TriangleCaps |= DD_FLATSHADE;
 699             else
 700                ctx->_TriangleCaps &= ~DD_FLATSHADE;
 701             if (ctx->Driver.ShadeModel)
 702                (*ctx->Driver.ShadeModel)(ctx, ctx->Light.ShadeModel);
 703             ctx->_Enabled &= ~ENABLE_LIGHT;
 704             if (ctx->Light.Enabled && !is_empty_list(&ctx->Light.EnabledList))
 705                ctx->_Enabled |= ENABLE_LIGHT;
 706             break;
 707          case GL_LINE_BIT:
 708             MEMCPY( &ctx->Line, attr->data, sizeof(struct gl_line_attrib) );
 709             ctx->NewState |= _NEW_LINE;
 710             if (ctx->Driver.Enable) {
 711                (*ctx->Driver.Enable)( ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag );
 712                (*ctx->Driver.Enable)( ctx, GL_LINE_STIPPLE, ctx->Line.StippleFlag );
 713             }
 714             if (ctx->Driver.LineStipple)
 715                (*ctx->Driver.LineStipple)(ctx, ctx->Line.StippleFactor,
 716                                           ctx->Line.StipplePattern);
 717             if (ctx->Driver.LineWidth)
 718                (*ctx->Driver.LineWidth)(ctx, ctx->Line.Width);
 719             break;
 720          case GL_LIST_BIT:
 721             MEMCPY( &ctx->List, attr->data, sizeof(struct gl_list_attrib) );
 722             break;
 723          case GL_PIXEL_MODE_BIT:
 724             MEMCPY( &ctx->Pixel, attr->data, sizeof(struct gl_pixel_attrib) );
 725             ctx->NewState |= _NEW_PIXEL;
 726             break;
 727          case GL_POINT_BIT:
 728             MEMCPY( &ctx->Point, attr->data, sizeof(struct gl_point_attrib) );
 729             ctx->NewState |= _NEW_POINT;
 730             if (ctx->Driver.Enable)
 731                (*ctx->Driver.Enable)( ctx, GL_POINT_SMOOTH, ctx->Point.SmoothFlag );
 732             break;
 733          case GL_POLYGON_BIT:
 734             {
 735                GLenum oldFrontMode = ctx->Polygon.FrontMode;
 736                GLenum oldBackMode = ctx->Polygon.BackMode;
 737                MEMCPY( &ctx->Polygon, attr->data,
 738                        sizeof(struct gl_polygon_attrib) );
 739                ctx->NewState |= _NEW_POLYGON;
 740                if ((ctx->Polygon.FrontMode != oldFrontMode ||
 741                     ctx->Polygon.BackMode != oldBackMode) &&
 742                    ctx->Driver.PolygonMode) {
 743                   (*ctx->Driver.PolygonMode)( ctx, GL_FRONT, ctx->Polygon.FrontMode);
 744                   (*ctx->Driver.PolygonMode)( ctx, GL_BACK, ctx->Polygon.BackMode);
 745                }
 746                if (ctx->Driver.CullFace)
 747                   ctx->Driver.CullFace( ctx, ctx->Polygon.CullFaceMode );
 748
 749                if (ctx->Driver.FrontFace)
 750                   ctx->Driver.FrontFace( ctx, ctx->Polygon.FrontFace );
 751
 752                if (ctx->Driver.Enable)
 753                   (*ctx->Driver.Enable)( ctx, GL_POLYGON_SMOOTH, ctx->Polygon.SmoothFlag );
 754             }
 755             break;
 756          case GL_POLYGON_STIPPLE_BIT:
 757             MEMCPY( ctx->PolygonStipple, attr->data, 32*sizeof(GLuint) );
 758             ctx->NewState |= _NEW_POLYGONSTIPPLE;
 759             if (ctx->Driver.PolygonStipple)
 760                ctx->Driver.PolygonStipple( ctx, (const GLubyte *) attr->data );
 761             break;
 762          case GL_SCISSOR_BIT:
 763             MEMCPY( &ctx->Scissor, attr->data,
 764                     sizeof(struct gl_scissor_attrib) );
 765             ctx->NewState |= _NEW_SCISSOR;
 766             if (ctx->Driver.Enable)
 767                (*ctx->Driver.Enable)( ctx, GL_SCISSOR_TEST, ctx->Scissor.Enabled );
 768             if (ctx->Driver.Scissor)
 769                ctx->Driver.Scissor( ctx, ctx->Scissor.X, ctx->Scissor.Y,
 770                                     ctx->Scissor.Width, ctx->Scissor.Height );
 771             break;
 772          case GL_STENCIL_BUFFER_BIT:
 773             MEMCPY( &ctx->Stencil, attr->data,
 774                     sizeof(struct gl_stencil_attrib) );
 775             ctx->NewState |= _NEW_STENCIL;
 776             if (ctx->Driver.StencilFunc)
 777                (*ctx->Driver.StencilFunc)( ctx, ctx->Stencil.Function,
 778                                    ctx->Stencil.Ref, ctx->Stencil.ValueMask);
 779             if (ctx->Driver.StencilMask)
 780                (*ctx->Driver.StencilMask)( ctx, ctx->Stencil.WriteMask );
 781             if (ctx->Driver.StencilOp)
 782                (*ctx->Driver.StencilOp)( ctx, ctx->Stencil.FailFunc,
 783                               ctx->Stencil.ZFailFunc, ctx->Stencil.ZPassFunc);
 784             if (ctx->Driver.ClearStencil)
 785                (*ctx->Driver.ClearStencil)( ctx, ctx->Stencil.Clear );
 786             if (ctx->Driver.Enable)
 787                (*ctx->Driver.Enable)( ctx, GL_STENCIL_TEST, ctx->Stencil.Enabled );
 788             ctx->_TriangleCaps &= ~DD_STENCIL;
 789             if (ctx->Stencil.Enabled)
 790                ctx->_TriangleCaps |= DD_STENCIL;
 791
 792             break;
 793          case GL_TRANSFORM_BIT:
 794             MEMCPY( &ctx->Transform, attr->data,
 795                     sizeof(struct gl_transform_attrib) );
 796             ctx->NewState |= _NEW_TRANSFORM;
 797             if (ctx->Driver.Enable) {
 798                (*ctx->Driver.Enable)( ctx, GL_NORMALIZE, ctx->Transform.Normalize );
 799                (*ctx->Driver.Enable)( ctx, GL_RESCALE_NORMAL_EXT, ctx->Transform.RescaleNormals );
 800             }
 801             ctx->_Enabled &= ~(ENABLE_NORMALIZE|ENABLE_RESCALE);
 802             if (ctx->Transform.Normalize) ctx->_Enabled |= ENABLE_NORMALIZE;
 803             if (ctx->Transform.RescaleNormals) ctx->_Enabled |= ENABLE_RESCALE;
 804             break;
 805          case GL_TEXTURE_BIT:
 806             /* Take care of texture object reference counters */
 807             {
 808                GLuint u;
 809                for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 810                   ctx->Texture.Unit[u].CurrentD[1]->RefCount--;
 811                   ctx->Texture.Unit[u].CurrentD[2]->RefCount--;
 812                   ctx->Texture.Unit[u].CurrentD[3]->RefCount--;
 813                }
 814                MEMCPY( &ctx->Texture, attr->data,
 815                        sizeof(struct gl_texture_attrib) );
 816                ctx->NewState |= _NEW_TEXTURE;
 817                /* restore state of the currently bound texture objects */
 818                for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 819                   copy_texobj_state( ctx->Texture.Unit[u].CurrentD[1],
 820                                      &(ctx->Texture.Unit[u].Saved1D) );
 821                   copy_texobj_state( ctx->Texture.Unit[u].CurrentD[2],
 822                                      &(ctx->Texture.Unit[u].Saved2D) );
 823                   copy_texobj_state( ctx->Texture.Unit[u].CurrentD[3],
 824                                      &(ctx->Texture.Unit[u].Saved3D) );
 825                   copy_texobj_state( ctx->Texture.Unit[u].CurrentCubeMap,
 826                                      &(ctx->Texture.Unit[u].SavedCubeMap) );
 827
 828                   gl_put_texobj_on_dirty_list( ctx, ctx->Texture.Unit[u].CurrentD[1] );
 829                   gl_put_texobj_on_dirty_list( ctx, ctx->Texture.Unit[u].CurrentD[2] );
 830                   gl_put_texobj_on_dirty_list( ctx, ctx->Texture.Unit[u].CurrentD[3] );
 831                   gl_put_texobj_on_dirty_list( ctx, ctx->Texture.Unit[u].CurrentCubeMap );
 832
 833                }
 834             }
 835             break;
 836          case GL_VIEWPORT_BIT:
 837          {
 838             struct gl_viewport_attrib *v =
 839                (struct gl_viewport_attrib *)attr->data;
 840
 841             ctx->NewState |= _NEW_VIEWPORT;
 842             _mesa_Viewport( v->X, v->Y, v->Width, v->Height );
 843             _mesa_DepthRange( v->Near, v->Far );
 844             break;
 845          }
 846          default:
 847             gl_problem( ctx, "Bad attrib flag in PopAttrib");
 848             break;
 849       }
 850
 851       next = attr->next;
 852       FREE( attr->data );
 853       FREE( attr );
 854       attr = next;
 855    }
 856 }
 857
 858
 859 #define GL_CLIENT_PACK_BIT (1<<20)
 860 #define GL_CLIENT_UNPACK_BIT (1<<21)
 861
 862
 863 void
 864 _mesa_PushClientAttrib(GLbitfield mask)
 865 {
 866    struct gl_attrib_node *newnode;
 867    struct gl_attrib_node *head;
 868
 869    GET_CURRENT_CONTEXT(ctx);
 870    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPushClientAttrib");
 871
 872    if (ctx->ClientAttribStackDepth>=MAX_CLIENT_ATTRIB_STACK_DEPTH) {
 873       gl_error( ctx, GL_STACK_OVERFLOW, "glPushClientAttrib" );
 874       return;
 875    }
 876
 877    /* Build linked list of attribute nodes which save all attribute */
 878    /* groups specified by the mask. */
 879    head = NULL;
 880
 881    if (mask & GL_CLIENT_PIXEL_STORE_BIT) {
 882       struct gl_pixelstore_attrib *attr;
 883       /* packing attribs */
 884       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
 885       MEMCPY( attr, &ctx->Pack, sizeof(struct gl_pixelstore_attrib) );
 886       newnode = new_attrib_node( GL_CLIENT_PACK_BIT );
 887       newnode->data = attr;
 888       newnode->next = head;
 889       head = newnode;
 890       /* unpacking attribs */
 891       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
 892       MEMCPY( attr, &ctx->Unpack, sizeof(struct gl_pixelstore_attrib) );
 893       newnode = new_attrib_node( GL_CLIENT_UNPACK_BIT );
 894       newnode->data = attr;
 895       newnode->next = head;
 896       head = newnode;
 897    }
 898    if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) {
 899       struct gl_array_attrib *attr;
 900       attr = MALLOC_STRUCT( gl_array_attrib );
 901       MEMCPY( attr, &ctx->Array, sizeof(struct gl_array_attrib) );
 902       newnode = new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT );
 903       newnode->data = attr;
 904       newnode->next = head;
 905       head = newnode;
 906    }
 907
 908    ctx->ClientAttribStack[ctx->ClientAttribStackDepth] = head;
 909    ctx->ClientAttribStackDepth++;
 910 }
 911
 912
 913
 914
 915 void
 916 _mesa_PopClientAttrib(void)
 917 {
 918    struct gl_attrib_node *attr, *next;
 919
 920    GET_CURRENT_CONTEXT(ctx);
 921    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPopClientAttrib");
 922
 923    if (ctx->ClientAttribStackDepth==0) {
 924       gl_error( ctx, GL_STACK_UNDERFLOW, "glPopClientAttrib" );
 925       return;
 926    }
 927
 928    ctx->ClientAttribStackDepth--;
 929    attr = ctx->ClientAttribStack[ctx->ClientAttribStackDepth];
 930
 931    while (attr) {
 932       switch (attr->kind) {
 933          case GL_CLIENT_PACK_BIT:
 934             MEMCPY( &ctx->Pack, attr->data,
 935                     sizeof(struct gl_pixelstore_attrib) );
 936             break;
 937          case GL_CLIENT_UNPACK_BIT:
 938             MEMCPY( &ctx->Unpack, attr->data,
 939                     sizeof(struct gl_pixelstore_attrib) );
 940             break;
 941          case GL_CLIENT_VERTEX_ARRAY_BIT:
 942             MEMCPY( &ctx->Array, attr->data,
 943                     sizeof(struct gl_array_attrib) );
 944             break;
 945          default:
 946             gl_problem( ctx, "Bad attrib flag in PopClientAttrib");
 947             break;
 948       }
 949
 950       next = attr->next;
 951       FREE( attr->data );
 952       FREE( attr );
 953       attr = next;
 954    }
 955
 956    ctx->NewState = _NEW_ARRAY;
 957 }
 958
 959
 960