src/mesa/main/attrib.c

   1 /* $Id: attrib.c,v 1.78 2003/02/05 15:24:28 brianp Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  5.1
   6  *
   7  * Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27 #include "glheader.h"
  28 #include "imports.h"
  29 #include "accum.h"
  30 #include "attrib.h"
  31 #include "blend.h"
  32 #include "buffers.h"
  33 #include "colormac.h"
  34 #include "colortab.h"
  35 #include "context.h"
  36 #include "depth.h"
  37 #include "enable.h"
  38 #include "enums.h"
  39 #include "fog.h"
  40 #include "hint.h"
  41 #include "light.h"
  42 #include "lines.h"
  43 #include "matrix.h"
  44 #include "points.h"
  45 #include "polygon.h"
  46 #include "simple_list.h"
  47 #include "stencil.h"
  48 #include "texobj.h"
  49 #include "texstate.h"
  50 #include "mtypes.h"
  51 #include "math/m_xform.h"
  52
  53
  54 /*
  55  * Allocate a new attribute state node.  These nodes have a
  56  * "kind" value and a pointer to a struct of state data.
  57  */
  58 static struct gl_attrib_node *
  59 new_attrib_node( GLbitfield kind )
  60 {
  61    struct gl_attrib_node *an = MALLOC_STRUCT(gl_attrib_node);
  62    if (an) {
  63       an->kind = kind;
  64    }
  65    return an;
  66 }
  67
  68
  69 void
  70 _mesa_PushAttrib(GLbitfield mask)
  71 {
  72    struct gl_attrib_node *newnode;
  73    struct gl_attrib_node *head;
  74
  75    GET_CURRENT_CONTEXT(ctx);
  76    ASSERT_OUTSIDE_BEGIN_END(ctx);
  77
  78    if (MESA_VERBOSE & VERBOSE_API)
  79       _mesa_debug(ctx, "glPushAttrib %x\n", (int) mask);
  80
  81    if (ctx->AttribStackDepth >= MAX_ATTRIB_STACK_DEPTH) {
  82       _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushAttrib" );
  83       return;
  84    }
  85
  86    /* Build linked list of attribute nodes which save all attribute */
  87    /* groups specified by the mask. */
  88    head = NULL;
  89
  90    if (mask & GL_ACCUM_BUFFER_BIT) {
  91       struct gl_accum_attrib *attr;
  92       attr = MALLOC_STRUCT( gl_accum_attrib );
  93       MEMCPY( attr, &ctx->Accum, sizeof(struct gl_accum_attrib) );
  94       newnode = new_attrib_node( GL_ACCUM_BUFFER_BIT );
  95       newnode->data = attr;
  96       newnode->next = head;
  97       head = newnode;
  98    }
  99
 100    if (mask & GL_COLOR_BUFFER_BIT) {
 101       struct gl_colorbuffer_attrib *attr;
 102       attr = MALLOC_STRUCT( gl_colorbuffer_attrib );
 103       MEMCPY( attr, &ctx->Color, sizeof(struct gl_colorbuffer_attrib) );
 104       newnode = new_attrib_node( GL_COLOR_BUFFER_BIT );
 105       newnode->data = attr;
 106       newnode->next = head;
 107       head = newnode;
 108    }
 109
 110    if (mask & GL_CURRENT_BIT) {
 111       struct gl_current_attrib *attr;
 112       FLUSH_CURRENT( ctx, 0 );
 113       attr = MALLOC_STRUCT( gl_current_attrib );
 114       MEMCPY( attr, &ctx->Current, sizeof(struct gl_current_attrib) );
 115       newnode = new_attrib_node( GL_CURRENT_BIT );
 116       newnode->data = attr;
 117       newnode->next = head;
 118       head = newnode;
 119    }
 120
 121    if (mask & GL_DEPTH_BUFFER_BIT) {
 122       struct gl_depthbuffer_attrib *attr;
 123       attr = MALLOC_STRUCT( gl_depthbuffer_attrib );
 124       MEMCPY( attr, &ctx->Depth, sizeof(struct gl_depthbuffer_attrib) );
 125       newnode = new_attrib_node( GL_DEPTH_BUFFER_BIT );
 126       newnode->data = attr;
 127       newnode->next = head;
 128       head = newnode;
 129    }
 130
 131    if (mask & GL_ENABLE_BIT) {
 132       struct gl_enable_attrib *attr;
 133       GLuint i;
 134       attr = MALLOC_STRUCT( gl_enable_attrib );
 135       /* Copy enable flags from all other attributes into the enable struct. */
 136       attr->AlphaTest = ctx->Color.AlphaEnabled;
 137       attr->AutoNormal = ctx->Eval.AutoNormal;
 138       attr->Blend = ctx->Color.BlendEnabled;
 139       attr->ClipPlanes = ctx->Transform.ClipPlanesEnabled;
 140       attr->ColorMaterial = ctx->Light.ColorMaterialEnabled;
 141       attr->ColorTable = ctx->Pixel.ColorTableEnabled;
 142       attr->PostColorMatrixColorTable = ctx->Pixel.PostColorMatrixColorTableEnabled;
 143       attr->PostConvolutionColorTable = ctx->Pixel.PostConvolutionColorTableEnabled;
 144       attr->Convolution1D = ctx->Pixel.Convolution1DEnabled;
 145       attr->Convolution2D = ctx->Pixel.Convolution2DEnabled;
 146       attr->Separable2D = ctx->Pixel.Separable2DEnabled;
 147       attr->CullFace = ctx->Polygon.CullFlag;
 148       attr->DepthTest = ctx->Depth.Test;
 149       attr->Dither = ctx->Color.DitherFlag;
 150       attr->Fog = ctx->Fog.Enabled;
 151       for (i=0;i<MAX_LIGHTS;i++) {
 152          attr->Light[i] = ctx->Light.Light[i].Enabled;
 153       }
 154       attr->Lighting = ctx->Light.Enabled;
 155       attr->LineSmooth = ctx->Line.SmoothFlag;
 156       attr->LineStipple = ctx->Line.StippleFlag;
 157       attr->Histogram = ctx->Pixel.HistogramEnabled;
 158       attr->MinMax = ctx->Pixel.MinMaxEnabled;
 159       attr->IndexLogicOp = ctx->Color.IndexLogicOpEnabled;
 160       attr->ColorLogicOp = ctx->Color.ColorLogicOpEnabled;
 161       attr->Map1Color4 = ctx->Eval.Map1Color4;
 162       attr->Map1Index = ctx->Eval.Map1Index;
 163       attr->Map1Normal = ctx->Eval.Map1Normal;
 164       attr->Map1TextureCoord1 = ctx->Eval.Map1TextureCoord1;
 165       attr->Map1TextureCoord2 = ctx->Eval.Map1TextureCoord2;
 166       attr->Map1TextureCoord3 = ctx->Eval.Map1TextureCoord3;
 167       attr->Map1TextureCoord4 = ctx->Eval.Map1TextureCoord4;
 168       attr->Map1Vertex3 = ctx->Eval.Map1Vertex3;
 169       attr->Map1Vertex4 = ctx->Eval.Map1Vertex4;
 170       MEMCPY(attr->Map1Attrib, ctx->Eval.Map1Attrib, sizeof(ctx->Eval.Map1Attrib));
 171       attr->Map2Color4 = ctx->Eval.Map2Color4;
 172       attr->Map2Index = ctx->Eval.Map2Index;
 173       attr->Map2Normal = ctx->Eval.Map2Normal;
 174       attr->Map2TextureCoord1 = ctx->Eval.Map2TextureCoord1;
 175       attr->Map2TextureCoord2 = ctx->Eval.Map2TextureCoord2;
 176       attr->Map2TextureCoord3 = ctx->Eval.Map2TextureCoord3;
 177       attr->Map2TextureCoord4 = ctx->Eval.Map2TextureCoord4;
 178       attr->Map2Vertex3 = ctx->Eval.Map2Vertex3;
 179       attr->Map2Vertex4 = ctx->Eval.Map2Vertex4;
 180       MEMCPY(attr->Map2Attrib, ctx->Eval.Map2Attrib, sizeof(ctx->Eval.Map2Attrib));
 181       attr->Normalize = ctx->Transform.Normalize;
 182       attr->RasterPositionUnclipped = ctx->Transform.RasterPositionUnclipped;
 183       attr->PixelTexture = ctx->Pixel.PixelTextureEnabled;
 184       attr->PointSmooth = ctx->Point.SmoothFlag;
 185       attr->PointSprite = ctx->Point.PointSprite;
 186       attr->PolygonOffsetPoint = ctx->Polygon.OffsetPoint;
 187       attr->PolygonOffsetLine = ctx->Polygon.OffsetLine;
 188       attr->PolygonOffsetFill = ctx->Polygon.OffsetFill;
 189       attr->PolygonSmooth = ctx->Polygon.SmoothFlag;
 190       attr->PolygonStipple = ctx->Polygon.StippleFlag;
 191       attr->RescaleNormals = ctx->Transform.RescaleNormals;
 192       attr->Scissor = ctx->Scissor.Enabled;
 193       attr->Stencil = ctx->Stencil.Enabled;
 194       attr->MultisampleEnabled = ctx->Multisample.Enabled;
 195       attr->SampleAlphaToCoverage = ctx->Multisample.SampleAlphaToCoverage;
 196       attr->SampleAlphaToOne = ctx->Multisample.SampleAlphaToOne;
 197       attr->SampleCoverage = ctx->Multisample.SampleCoverage;
 198       attr->SampleCoverageInvert = ctx->Multisample.SampleCoverageInvert;
 199       for (i=0; i<MAX_TEXTURE_UNITS; i++) {
 200          attr->Texture[i] = ctx->Texture.Unit[i].Enabled;
 201          attr->TexGen[i] = ctx->Texture.Unit[i].TexGenEnabled;
 202          attr->TextureColorTable[i] = ctx->Texture.Unit[i].ColorTableEnabled;
 203       }
 204       /* GL_NV_vertex_program */
 205       attr->VertexProgram = ctx->VertexProgram.Enabled;
 206       attr->VertexProgramPointSize = ctx->VertexProgram.PointSizeEnabled;
 207       attr->VertexProgramTwoSide = ctx->VertexProgram.TwoSideEnabled;
 208       newnode = new_attrib_node( GL_ENABLE_BIT );
 209       newnode->data = attr;
 210       newnode->next = head;
 211       head = newnode;
 212    }
 213
 214    if (mask & GL_EVAL_BIT) {
 215       struct gl_eval_attrib *attr;
 216       attr = MALLOC_STRUCT( gl_eval_attrib );
 217       MEMCPY( attr, &ctx->Eval, sizeof(struct gl_eval_attrib) );
 218       newnode = new_attrib_node( GL_EVAL_BIT );
 219       newnode->data = attr;
 220       newnode->next = head;
 221       head = newnode;
 222    }
 223
 224    if (mask & GL_FOG_BIT) {
 225       struct gl_fog_attrib *attr;
 226       attr = MALLOC_STRUCT( gl_fog_attrib );
 227       MEMCPY( attr, &ctx->Fog, sizeof(struct gl_fog_attrib) );
 228       newnode = new_attrib_node( GL_FOG_BIT );
 229       newnode->data = attr;
 230       newnode->next = head;
 231       head = newnode;
 232    }
 233
 234    if (mask & GL_HINT_BIT) {
 235       struct gl_hint_attrib *attr;
 236       attr = MALLOC_STRUCT( gl_hint_attrib );
 237       MEMCPY( attr, &ctx->Hint, sizeof(struct gl_hint_attrib) );
 238       newnode = new_attrib_node( GL_HINT_BIT );
 239       newnode->data = attr;
 240       newnode->next = head;
 241       head = newnode;
 242    }
 243
 244    if (mask & GL_LIGHTING_BIT) {
 245       struct gl_light_attrib *attr;
 246       FLUSH_CURRENT(ctx, 0);    /* flush material changes */
 247       attr = MALLOC_STRUCT( gl_light_attrib );
 248       MEMCPY( attr, &ctx->Light, sizeof(struct gl_light_attrib) );
 249       newnode = new_attrib_node( GL_LIGHTING_BIT );
 250       newnode->data = attr;
 251       newnode->next = head;
 252       head = newnode;
 253    }
 254
 255    if (mask & GL_LINE_BIT) {
 256       struct gl_line_attrib *attr;
 257       attr = MALLOC_STRUCT( gl_line_attrib );
 258       MEMCPY( attr, &ctx->Line, sizeof(struct gl_line_attrib) );
 259       newnode = new_attrib_node( GL_LINE_BIT );
 260       newnode->data = attr;
 261       newnode->next = head;
 262       head = newnode;
 263    }
 264
 265    if (mask & GL_LIST_BIT) {
 266       struct gl_list_attrib *attr;
 267       attr = MALLOC_STRUCT( gl_list_attrib );
 268       MEMCPY( attr, &ctx->List, sizeof(struct gl_list_attrib) );
 269       newnode = new_attrib_node( GL_LIST_BIT );
 270       newnode->data = attr;
 271       newnode->next = head;
 272       head = newnode;
 273    }
 274
 275    if (mask & GL_PIXEL_MODE_BIT) {
 276       struct gl_pixel_attrib *attr;
 277       attr = MALLOC_STRUCT( gl_pixel_attrib );
 278       MEMCPY( attr, &ctx->Pixel, sizeof(struct gl_pixel_attrib) );
 279       newnode = new_attrib_node( GL_PIXEL_MODE_BIT );
 280       newnode->data = attr;
 281       newnode->next = head;
 282       head = newnode;
 283    }
 284
 285    if (mask & GL_POINT_BIT) {
 286       struct gl_point_attrib *attr;
 287       attr = MALLOC_STRUCT( gl_point_attrib );
 288       MEMCPY( attr, &ctx->Point, sizeof(struct gl_point_attrib) );
 289       newnode = new_attrib_node( GL_POINT_BIT );
 290       newnode->data = attr;
 291       newnode->next = head;
 292       head = newnode;
 293    }
 294
 295    if (mask & GL_POLYGON_BIT) {
 296       struct gl_polygon_attrib *attr;
 297       attr = MALLOC_STRUCT( gl_polygon_attrib );
 298       MEMCPY( attr, &ctx->Polygon, sizeof(struct gl_polygon_attrib) );
 299       newnode = new_attrib_node( GL_POLYGON_BIT );
 300       newnode->data = attr;
 301       newnode->next = head;
 302       head = newnode;
 303    }
 304
 305    if (mask & GL_POLYGON_STIPPLE_BIT) {
 306       GLuint *stipple;
 307       stipple = (GLuint *) MALLOC( 32*sizeof(GLuint) );
 308       MEMCPY( stipple, ctx->PolygonStipple, 32*sizeof(GLuint) );
 309       newnode = new_attrib_node( GL_POLYGON_STIPPLE_BIT );
 310       newnode->data = stipple;
 311       newnode->next = head;
 312       head = newnode;
 313    }
 314
 315    if (mask & GL_SCISSOR_BIT) {
 316       struct gl_scissor_attrib *attr;
 317       attr = MALLOC_STRUCT( gl_scissor_attrib );
 318       MEMCPY( attr, &ctx->Scissor, sizeof(struct gl_scissor_attrib) );
 319       newnode = new_attrib_node( GL_SCISSOR_BIT );
 320       newnode->data = attr;
 321       newnode->next = head;
 322       head = newnode;
 323    }
 324
 325    if (mask & GL_STENCIL_BUFFER_BIT) {
 326       struct gl_stencil_attrib *attr;
 327       attr = MALLOC_STRUCT( gl_stencil_attrib );
 328       MEMCPY( attr, &ctx->Stencil, sizeof(struct gl_stencil_attrib) );
 329       newnode = new_attrib_node( GL_STENCIL_BUFFER_BIT );
 330       newnode->data = attr;
 331       newnode->next = head;
 332       head = newnode;
 333    }
 334
 335    if (mask & GL_TEXTURE_BIT) {
 336       struct gl_texture_attrib *attr;
 337       GLuint u;
 338       /* Bump the texture object reference counts so that they don't
 339        * inadvertantly get deleted.
 340        */
 341       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 342          ctx->Texture.Unit[u].Current1D->RefCount++;
 343          ctx->Texture.Unit[u].Current2D->RefCount++;
 344          ctx->Texture.Unit[u].Current3D->RefCount++;
 345          ctx->Texture.Unit[u].CurrentCubeMap->RefCount++;
 346          ctx->Texture.Unit[u].CurrentRect->RefCount++;
 347       }
 348       attr = MALLOC_STRUCT( gl_texture_attrib );
 349       MEMCPY( attr, &ctx->Texture, sizeof(struct gl_texture_attrib) );
 350       /* copy state of the currently bound texture objects */
 351       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 352          _mesa_copy_texture_object(&attr->Unit[u].Saved1D,
 353                                    attr->Unit[u].Current1D);
 354          _mesa_copy_texture_object(&attr->Unit[u].Saved2D,
 355                                    attr->Unit[u].Current2D);
 356          _mesa_copy_texture_object(&attr->Unit[u].Saved3D,
 357                                    attr->Unit[u].Current3D);
 358          _mesa_copy_texture_object(&attr->Unit[u].SavedCubeMap,
 359                                    attr->Unit[u].CurrentCubeMap);
 360          _mesa_copy_texture_object(&attr->Unit[u].SavedRect,
 361                                    attr->Unit[u].CurrentRect);
 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    /* GL_ARB_multisample */
 390    if (mask & GL_MULTISAMPLE_BIT_ARB) {
 391       struct gl_multisample_attrib *attr;
 392       attr = MALLOC_STRUCT( gl_multisample_attrib );
 393       MEMCPY( attr, &ctx->Multisample, sizeof(struct gl_multisample_attrib) );
 394       newnode = new_attrib_node( GL_MULTISAMPLE_BIT_ARB );
 395       newnode->data = attr;
 396       newnode->next = head;
 397       head = newnode;
 398    }
 399
 400    ctx->AttribStack[ctx->AttribStackDepth] = head;
 401    ctx->AttribStackDepth++;
 402 }
 403
 404
 405
 406 static void
 407 pop_enable_group(GLcontext *ctx, const struct gl_enable_attrib *enable)
 408 {
 409    GLuint i;
 410
 411 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM)          \
 412         if ((VALUE) != (NEWVALUE)) {                    \
 413            _mesa_set_enable( ctx, ENUM, (NEWVALUE) );   \
 414         }
 415
 416    TEST_AND_UPDATE(ctx->Color.AlphaEnabled, enable->AlphaTest, GL_ALPHA_TEST);
 417    TEST_AND_UPDATE(ctx->Color.BlendEnabled, enable->Blend, GL_BLEND);
 418
 419    for (i=0;i<MAX_CLIP_PLANES;i++) {
 420       const GLuint mask = 1 << i;
 421       if ((ctx->Transform.ClipPlanesEnabled & mask) != (enable->ClipPlanes & mask))
 422           _mesa_set_enable(ctx, (GLenum) (GL_CLIP_PLANE0 + i),
 423                            (GLboolean) ((enable->ClipPlanes & mask) ? GL_TRUE : GL_FALSE));
 424    }
 425
 426    TEST_AND_UPDATE(ctx->Light.ColorMaterialEnabled, enable->ColorMaterial,
 427                    GL_COLOR_MATERIAL);
 428    TEST_AND_UPDATE(ctx->Pixel.ColorTableEnabled, enable->ColorTable,
 429                    GL_COLOR_TABLE);
 430    TEST_AND_UPDATE(ctx->Pixel.PostColorMatrixColorTableEnabled,
 431                    enable->PostColorMatrixColorTable,
 432                    GL_POST_COLOR_MATRIX_COLOR_TABLE);
 433    TEST_AND_UPDATE(ctx->Pixel.PostConvolutionColorTableEnabled,
 434                    enable->PostConvolutionColorTable,
 435                    GL_POST_CONVOLUTION_COLOR_TABLE);
 436    TEST_AND_UPDATE(ctx->Polygon.CullFlag, enable->CullFace, GL_CULL_FACE);
 437    TEST_AND_UPDATE(ctx->Depth.Test, enable->DepthTest, GL_DEPTH_TEST);
 438    TEST_AND_UPDATE(ctx->Color.DitherFlag, enable->Dither, GL_DITHER);
 439    TEST_AND_UPDATE(ctx->Pixel.Convolution1DEnabled, enable->Convolution1D,
 440                    GL_CONVOLUTION_1D);
 441    TEST_AND_UPDATE(ctx->Pixel.Convolution2DEnabled, enable->Convolution2D,
 442                    GL_CONVOLUTION_2D);
 443    TEST_AND_UPDATE(ctx->Pixel.Separable2DEnabled, enable->Separable2D,
 444                    GL_SEPARABLE_2D);
 445    TEST_AND_UPDATE(ctx->Fog.Enabled, enable->Fog, GL_FOG);
 446    TEST_AND_UPDATE(ctx->Light.Enabled, enable->Lighting, GL_LIGHTING);
 447    TEST_AND_UPDATE(ctx->Line.SmoothFlag, enable->LineSmooth, GL_LINE_SMOOTH);
 448    TEST_AND_UPDATE(ctx->Line.StippleFlag, enable->LineStipple,
 449                    GL_LINE_STIPPLE);
 450    TEST_AND_UPDATE(ctx->Color.IndexLogicOpEnabled, enable->IndexLogicOp,
 451                    GL_INDEX_LOGIC_OP);
 452    TEST_AND_UPDATE(ctx->Color.ColorLogicOpEnabled, enable->ColorLogicOp,
 453                    GL_COLOR_LOGIC_OP);
 454
 455    TEST_AND_UPDATE(ctx->Eval.Map1Color4, enable->Map1Color4, GL_MAP1_COLOR_4);
 456    TEST_AND_UPDATE(ctx->Eval.Map1Index, enable->Map1Index, GL_MAP1_INDEX);
 457    TEST_AND_UPDATE(ctx->Eval.Map1Normal, enable->Map1Normal, GL_MAP1_NORMAL);
 458    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord1, enable->Map1TextureCoord1,
 459                    GL_MAP1_TEXTURE_COORD_1);
 460    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord2, enable->Map1TextureCoord2,
 461                    GL_MAP1_TEXTURE_COORD_2);
 462    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord3, enable->Map1TextureCoord3,
 463                    GL_MAP1_TEXTURE_COORD_3);
 464    TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord4, enable->Map1TextureCoord4,
 465                    GL_MAP1_TEXTURE_COORD_4);
 466    TEST_AND_UPDATE(ctx->Eval.Map1Vertex3, enable->Map1Vertex3,
 467                    GL_MAP1_VERTEX_3);
 468    TEST_AND_UPDATE(ctx->Eval.Map1Vertex4, enable->Map1Vertex4,
 469                    GL_MAP1_VERTEX_4);
 470    for (i = 0; i < 16; i++) {
 471       TEST_AND_UPDATE(ctx->Eval.Map1Attrib[i], enable->Map1Attrib[i],
 472                       GL_MAP1_VERTEX_ATTRIB0_4_NV + i);
 473    }
 474
 475    TEST_AND_UPDATE(ctx->Eval.Map2Color4, enable->Map2Color4, GL_MAP2_COLOR_4);
 476    TEST_AND_UPDATE(ctx->Eval.Map2Index, enable->Map2Index, GL_MAP2_INDEX);
 477    TEST_AND_UPDATE(ctx->Eval.Map2Normal, enable->Map2Normal, GL_MAP2_NORMAL);
 478    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord1, enable->Map2TextureCoord1,
 479                    GL_MAP2_TEXTURE_COORD_1);
 480    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord2, enable->Map2TextureCoord2,
 481                    GL_MAP2_TEXTURE_COORD_2);
 482    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord3, enable->Map2TextureCoord3,
 483                    GL_MAP2_TEXTURE_COORD_3);
 484    TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord4, enable->Map2TextureCoord4,
 485                    GL_MAP2_TEXTURE_COORD_4);
 486    TEST_AND_UPDATE(ctx->Eval.Map2Vertex3, enable->Map2Vertex3,
 487                    GL_MAP2_VERTEX_3);
 488    TEST_AND_UPDATE(ctx->Eval.Map2Vertex4, enable->Map2Vertex4,
 489                    GL_MAP2_VERTEX_4);
 490    for (i = 0; i < 16; i++) {
 491       TEST_AND_UPDATE(ctx->Eval.Map2Attrib[i], enable->Map2Attrib[i],
 492                       GL_MAP2_VERTEX_ATTRIB0_4_NV + i);
 493    }
 494
 495    TEST_AND_UPDATE(ctx->Eval.AutoNormal, enable->AutoNormal, GL_AUTO_NORMAL);
 496    TEST_AND_UPDATE(ctx->Transform.Normalize, enable->Normalize, GL_NORMALIZE);
 497    TEST_AND_UPDATE(ctx->Transform.RescaleNormals, enable->RescaleNormals,
 498                    GL_RESCALE_NORMAL_EXT);
 499    TEST_AND_UPDATE(ctx->Transform.RasterPositionUnclipped,
 500                    enable->RasterPositionUnclipped,
 501                    GL_RASTER_POSITION_UNCLIPPED_IBM);
 502    TEST_AND_UPDATE(ctx->Pixel.PixelTextureEnabled, enable->PixelTexture,
 503                    GL_POINT_SMOOTH);
 504    TEST_AND_UPDATE(ctx->Point.SmoothFlag, enable->PointSmooth,
 505                    GL_POINT_SMOOTH);
 506    if (ctx->Extensions.NV_point_sprite) {
 507       TEST_AND_UPDATE(ctx->Point.PointSprite, enable->PointSprite,
 508                       GL_POINT_SPRITE_NV);
 509    }
 510    TEST_AND_UPDATE(ctx->Polygon.OffsetPoint, enable->PolygonOffsetPoint,
 511                    GL_POLYGON_OFFSET_POINT);
 512    TEST_AND_UPDATE(ctx->Polygon.OffsetLine, enable->PolygonOffsetLine,
 513                    GL_POLYGON_OFFSET_LINE);
 514    TEST_AND_UPDATE(ctx->Polygon.OffsetFill, enable->PolygonOffsetFill,
 515                    GL_POLYGON_OFFSET_FILL);
 516    TEST_AND_UPDATE(ctx->Polygon.SmoothFlag, enable->PolygonSmooth,
 517                    GL_POLYGON_SMOOTH);
 518    TEST_AND_UPDATE(ctx->Polygon.StippleFlag, enable->PolygonStipple,
 519                    GL_POLYGON_STIPPLE);
 520    TEST_AND_UPDATE(ctx->Scissor.Enabled, enable->Scissor, GL_SCISSOR_TEST);
 521    TEST_AND_UPDATE(ctx->Stencil.Enabled, enable->Stencil, GL_STENCIL_TEST);
 522    /* XXX two-sided stencil */
 523    TEST_AND_UPDATE(ctx->Multisample.Enabled, enable->MultisampleEnabled,
 524                    GL_MULTISAMPLE_ARB);
 525    TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToCoverage,
 526                    enable->SampleAlphaToCoverage,
 527                    GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);
 528    TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToOne,
 529                    enable->SampleAlphaToOne,
 530                    GL_SAMPLE_ALPHA_TO_ONE_ARB);
 531    TEST_AND_UPDATE(ctx->Multisample.SampleCoverage,
 532                    enable->SampleCoverage,
 533                    GL_SAMPLE_COVERAGE_ARB);
 534    TEST_AND_UPDATE(ctx->Multisample.SampleCoverageInvert,
 535                    enable->SampleCoverageInvert,
 536                    GL_SAMPLE_COVERAGE_INVERT_ARB);
 537    /* GL_NV_vertex_program */
 538    TEST_AND_UPDATE(ctx->VertexProgram.Enabled,
 539                    enable->VertexProgram,
 540                    GL_VERTEX_PROGRAM_NV);
 541    TEST_AND_UPDATE(ctx->VertexProgram.PointSizeEnabled,
 542                    enable->VertexProgramPointSize,
 543                    GL_VERTEX_PROGRAM_POINT_SIZE_NV);
 544    TEST_AND_UPDATE(ctx->VertexProgram.TwoSideEnabled,
 545                    enable->VertexProgramTwoSide,
 546                    GL_VERTEX_PROGRAM_TWO_SIDE_NV);
 547
 548 #undef TEST_AND_UPDATE
 549
 550    /* texture unit enables */
 551    for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
 552       if (ctx->Texture.Unit[i].Enabled != enable->Texture[i]) {
 553          ctx->Texture.Unit[i].Enabled = enable->Texture[i];
 554          if (ctx->Driver.Enable) {
 555             if (ctx->Driver.ActiveTexture) {
 556                (*ctx->Driver.ActiveTexture)(ctx, i);
 557             }
 558             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_1D,
 559                              (GLboolean) (enable->Texture[i] & TEXTURE_1D_BIT) );
 560             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_2D,
 561                              (GLboolean) (enable->Texture[i] & TEXTURE_2D_BIT) );
 562             (*ctx->Driver.Enable)( ctx, GL_TEXTURE_3D,
 563                              (GLboolean) (enable->Texture[i] & TEXTURE_3D_BIT) );
 564             if (ctx->Extensions.ARB_texture_cube_map)
 565                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_CUBE_MAP_ARB,
 566                           (GLboolean) (enable->Texture[i] & TEXTURE_CUBE_BIT) );
 567             if (ctx->Extensions.NV_texture_rectangle)
 568                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_RECTANGLE_NV,
 569                           (GLboolean) (enable->Texture[i] & TEXTURE_RECT_BIT) );
 570          }
 571       }
 572
 573       if (ctx->Texture.Unit[i].TexGenEnabled != enable->TexGen[i]) {
 574          ctx->Texture.Unit[i].TexGenEnabled = enable->TexGen[i];
 575          if (ctx->Driver.Enable) {
 576             if (ctx->Driver.ActiveTexture) {
 577                (*ctx->Driver.ActiveTexture)(ctx, i);
 578             }
 579             if (enable->TexGen[i] & S_BIT)
 580                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_TRUE);
 581             else
 582                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_FALSE);
 583             if (enable->TexGen[i] & T_BIT)
 584                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_TRUE);
 585             else
 586                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_FALSE);
 587             if (enable->TexGen[i] & R_BIT)
 588                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_TRUE);
 589             else
 590                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_FALSE);
 591             if (enable->TexGen[i] & Q_BIT)
 592                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_TRUE);
 593             else
 594                (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_FALSE);
 595          }
 596       }
 597
 598       /* GL_SGI_texture_color_table */
 599       ctx->Texture.Unit[i].ColorTableEnabled = enable->TextureColorTable[i];
 600    }
 601
 602    if (ctx->Driver.ActiveTexture) {
 603       (*ctx->Driver.ActiveTexture)(ctx, ctx->Texture.CurrentUnit);
 604    }
 605 }
 606
 607
 608 static void
 609 pop_texture_group(GLcontext *ctx, const struct gl_texture_attrib *texAttrib)
 610 {
 611    GLuint u;
 612
 613    for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 614       const struct gl_texture_unit *unit = &texAttrib->Unit[u];
 615       GLuint i;
 616
 617       _mesa_ActiveTextureARB(GL_TEXTURE0_ARB + u);
 618       _mesa_set_enable(ctx, GL_TEXTURE_1D,
 619               (GLboolean) (unit->Enabled & TEXTURE_1D_BIT ? GL_TRUE : GL_FALSE));
 620       _mesa_set_enable(ctx, GL_TEXTURE_2D,
 621               (GLboolean) (unit->Enabled & TEXTURE_2D_BIT ? GL_TRUE : GL_FALSE));
 622       _mesa_set_enable(ctx, GL_TEXTURE_3D,
 623               (GLboolean) (unit->Enabled & TEXTURE_3D_BIT ? GL_TRUE : GL_FALSE));
 624       if (ctx->Extensions.ARB_texture_cube_map) {
 625          _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP_ARB,
 626              (GLboolean) (unit->Enabled & TEXTURE_CUBE_BIT ? GL_TRUE : GL_FALSE));
 627       }
 628       if (ctx->Extensions.NV_texture_rectangle) {
 629          _mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE_NV,
 630              (GLboolean) (unit->Enabled & TEXTURE_RECT_BIT ? GL_TRUE : GL_FALSE));
 631       }
 632       if (ctx->Extensions.SGI_texture_color_table) {
 633          _mesa_set_enable(ctx, GL_TEXTURE_COLOR_TABLE_SGI,
 634                           unit->ColorTableEnabled);
 635       }
 636       _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, unit->EnvMode);
 637       _mesa_TexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, unit->EnvColor);
 638       _mesa_TexGeni(GL_S, GL_TEXTURE_GEN_MODE, unit->GenModeS);
 639       _mesa_TexGeni(GL_T, GL_TEXTURE_GEN_MODE, unit->GenModeT);
 640       _mesa_TexGeni(GL_R, GL_TEXTURE_GEN_MODE, unit->GenModeR);
 641       _mesa_TexGeni(GL_Q, GL_TEXTURE_GEN_MODE, unit->GenModeQ);
 642       _mesa_TexGenfv(GL_S, GL_OBJECT_PLANE, unit->ObjectPlaneS);
 643       _mesa_TexGenfv(GL_T, GL_OBJECT_PLANE, unit->ObjectPlaneT);
 644       _mesa_TexGenfv(GL_R, GL_OBJECT_PLANE, unit->ObjectPlaneR);
 645       _mesa_TexGenfv(GL_Q, GL_OBJECT_PLANE, unit->ObjectPlaneQ);
 646       _mesa_TexGenfv(GL_S, GL_EYE_PLANE, unit->EyePlaneS);
 647       _mesa_TexGenfv(GL_T, GL_EYE_PLANE, unit->EyePlaneT);
 648       _mesa_TexGenfv(GL_R, GL_EYE_PLANE, unit->EyePlaneR);
 649       _mesa_TexGenfv(GL_Q, GL_EYE_PLANE, unit->EyePlaneQ);
 650       if (ctx->Extensions.EXT_texture_lod_bias) {
 651          _mesa_TexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT,
 652                        GL_TEXTURE_LOD_BIAS_EXT, unit->LodBias);
 653       }
 654       if (ctx->Extensions.EXT_texture_env_combine ||
 655           ctx->Extensions.ARB_texture_env_combine) {
 656          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_EXT,
 657                        unit->CombineModeRGB);
 658          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_EXT,
 659                        unit->CombineModeA);
 660          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_EXT,
 661                        unit->CombineSourceRGB[0]);
 662          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_EXT,
 663                        unit->CombineSourceRGB[1]);
 664          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB_EXT,
 665                        unit->CombineSourceRGB[2]);
 666          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_EXT,
 667                        unit->CombineSourceA[0]);
 668          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_EXT,
 669                        unit->CombineSourceA[1]);
 670          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA_EXT,
 671                        unit->CombineSourceA[2]);
 672          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_EXT,
 673                        unit->CombineOperandRGB[0]);
 674          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_EXT,
 675                        unit->CombineOperandRGB[1]);
 676          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB_EXT,
 677                        unit->CombineOperandRGB[2]);
 678          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_EXT,
 679                        unit->CombineOperandA[0]);
 680          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_EXT,
 681                        unit->CombineOperandA[1]);
 682          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA_EXT,
 683                        unit->CombineOperandA[2]);
 684          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_EXT,
 685                        1 << unit->CombineScaleShiftRGB);
 686          _mesa_TexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE,
 687                        1 << unit->CombineScaleShiftA);
 688       }
 689
 690       /* Restore texture object state */
 691       for (i = 0; i < NUM_TEXTURE_TARGETS; i++) {
 692          GLenum target = 0;
 693          const struct gl_texture_object *obj = NULL;
 694          GLfloat bordColor[4];
 695
 696          switch (i) {
 697          case 0:
 698             target = GL_TEXTURE_1D;
 699             obj = &unit->Saved1D;
 700             break;
 701          case 1:
 702             target = GL_TEXTURE_2D;
 703             obj = &unit->Saved2D;
 704             break;
 705          case 2:
 706             target = GL_TEXTURE_3D;
 707             obj = &unit->Saved3D;
 708             break;
 709          case 3:
 710             if (!ctx->Extensions.ARB_texture_cube_map)
 711                continue;
 712             target = GL_TEXTURE_CUBE_MAP_ARB;
 713             obj = &unit->SavedCubeMap;
 714             break;
 715          case 4:
 716             if (!ctx->Extensions.NV_texture_rectangle)
 717                continue;
 718             target = GL_TEXTURE_RECTANGLE_NV;
 719             obj = &unit->SavedRect;
 720             break;
 721          default:
 722             ; /* silence warnings */
 723          }
 724
 725          _mesa_BindTexture(target, obj->Name);
 726
 727          bordColor[0] = CHAN_TO_FLOAT(obj->BorderColor[0]);
 728          bordColor[1] = CHAN_TO_FLOAT(obj->BorderColor[1]);
 729          bordColor[2] = CHAN_TO_FLOAT(obj->BorderColor[2]);
 730          bordColor[3] = CHAN_TO_FLOAT(obj->BorderColor[3]);
 731
 732          _mesa_TexParameterf(target, GL_TEXTURE_PRIORITY, obj->Priority);
 733          _mesa_TexParameterfv(target, GL_TEXTURE_BORDER_COLOR, bordColor);
 734          _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, obj->WrapS);
 735          _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, obj->WrapT);
 736          _mesa_TexParameteri(target, GL_TEXTURE_WRAP_R, obj->WrapR);
 737          _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, obj->MinFilter);
 738          _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, obj->MagFilter);
 739          _mesa_TexParameterf(target, GL_TEXTURE_MIN_LOD, obj->MinLod);
 740          _mesa_TexParameterf(target, GL_TEXTURE_MAX_LOD, obj->MaxLod);
 741          _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, obj->BaseLevel);
 742          _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, obj->MaxLevel);
 743          if (ctx->Extensions.EXT_texture_filter_anisotropic) {
 744             _mesa_TexParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT,
 745                                 obj->MaxAnisotropy);
 746          }
 747          if (ctx->Extensions.SGIX_shadow) {
 748             _mesa_TexParameteri(target, GL_TEXTURE_COMPARE_SGIX,
 749                                 obj->CompareFlag);
 750             _mesa_TexParameteri(target, GL_TEXTURE_COMPARE_OPERATOR_SGIX,
 751                                 obj->CompareOperator);
 752          }
 753          if (ctx->Extensions.SGIX_shadow_ambient) {
 754             _mesa_TexParameterf(target, GL_SHADOW_AMBIENT_SGIX,
 755                                 obj->ShadowAmbient);
 756          }
 757
 758       }
 759    }
 760    _mesa_ActiveTextureARB(GL_TEXTURE0_ARB
 761                           + texAttrib->CurrentUnit);
 762
 763    /* "un-bump" the texture object reference counts.  We did that so they
 764     * wouldn't inadvertantly get deleted while they were still referenced
 765     * inside the attribute state stack.
 766     */
 767    for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
 768       ctx->Texture.Unit[u].Current1D->RefCount--;
 769       ctx->Texture.Unit[u].Current2D->RefCount--;
 770       ctx->Texture.Unit[u].Current3D->RefCount--;
 771       ctx->Texture.Unit[u].CurrentCubeMap->RefCount--;
 772       ctx->Texture.Unit[u].CurrentRect->RefCount--;
 773    }
 774 }
 775
 776
 777 /*
 778  * This function is kind of long just because we have to call a lot
 779  * of device driver functions to update device driver state.
 780  *
 781  * XXX As it is now, most of the pop-code calls immediate-mode Mesa functions
 782  * in order to restore GL state.  This isn't terribly efficient but it
 783  * ensures that dirty flags and any derived state gets updated correctly.
 784  * We could at least check if the value to restore equals the current value
 785  * and then skip the Mesa call.
 786  */
 787 void
 788 _mesa_PopAttrib(void)
 789 {
 790    struct gl_attrib_node *attr, *next;
 791    GET_CURRENT_CONTEXT(ctx);
 792    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 793
 794    if (ctx->AttribStackDepth == 0) {
 795       _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopAttrib" );
 796       return;
 797    }
 798
 799    ctx->AttribStackDepth--;
 800    attr = ctx->AttribStack[ctx->AttribStackDepth];
 801
 802    while (attr) {
 803
 804       if (MESA_VERBOSE & VERBOSE_API) {
 805          _mesa_debug(ctx, "glPopAttrib %s\n",
 806                      _mesa_lookup_enum_by_nr(attr->kind));
 807       }
 808
 809       switch (attr->kind) {
 810          case GL_ACCUM_BUFFER_BIT:
 811             {
 812                const struct gl_accum_attrib *accum;
 813                accum = (const struct gl_accum_attrib *) attr->data;
 814                _mesa_ClearAccum(accum->ClearColor[0],
 815                                 accum->ClearColor[1],
 816                                 accum->ClearColor[2],
 817                                 accum->ClearColor[3]);
 818             }
 819             break;
 820          case GL_COLOR_BUFFER_BIT:
 821             {
 822                const struct gl_colorbuffer_attrib *color;
 823                color = (const struct gl_colorbuffer_attrib *) attr->data;
 824                _mesa_ClearIndex((GLfloat) color->ClearIndex);
 825                _mesa_ClearColor(color->ClearColor[0],
 826                                 color->ClearColor[1],
 827                                 color->ClearColor[2],
 828                                 color->ClearColor[3]);
 829                _mesa_IndexMask(color->IndexMask);
 830                _mesa_ColorMask((GLboolean) (color->ColorMask[0] != 0),
 831                                (GLboolean) (color->ColorMask[1] != 0),
 832                                (GLboolean) (color->ColorMask[2] != 0),
 833                                (GLboolean) (color->ColorMask[3] != 0));
 834                _mesa_DrawBuffer(color->DrawBuffer);
 835                _mesa_set_enable(ctx, GL_ALPHA_TEST, color->AlphaEnabled);
 836                _mesa_AlphaFunc(color->AlphaFunc, color->AlphaRef);
 837                _mesa_set_enable(ctx, GL_BLEND, color->BlendEnabled);
 838                _mesa_BlendFuncSeparateEXT(color->BlendSrcRGB,
 839                                           color->BlendDstRGB,
 840                                           color->BlendSrcA,
 841                                           color->BlendDstA);
 842                _mesa_BlendEquation(color->BlendEquation);
 843                _mesa_BlendColor(color->BlendColor[0],
 844                                 color->BlendColor[1],
 845                                 color->BlendColor[2],
 846                                 color->BlendColor[3]);
 847                _mesa_LogicOp(color->LogicOp);
 848                _mesa_set_enable(ctx, GL_COLOR_LOGIC_OP,
 849                                 color->ColorLogicOpEnabled);
 850                _mesa_set_enable(ctx, GL_INDEX_LOGIC_OP,
 851                                 color->IndexLogicOpEnabled);
 852                _mesa_set_enable(ctx, GL_DITHER, color->DitherFlag);
 853             }
 854             break;
 855          case GL_CURRENT_BIT:
 856             FLUSH_CURRENT( ctx, 0 );
 857             MEMCPY( &ctx->Current, attr->data,
 858                     sizeof(struct gl_current_attrib) );
 859             break;
 860          case GL_DEPTH_BUFFER_BIT:
 861             {
 862                const struct gl_depthbuffer_attrib *depth;
 863                depth = (const struct gl_depthbuffer_attrib *) attr->data;
 864                _mesa_DepthFunc(depth->Func);
 865                _mesa_ClearDepth(depth->Clear);
 866                _mesa_set_enable(ctx, GL_DEPTH_TEST, depth->Test);
 867                _mesa_DepthMask(depth->Mask);
 868                if (ctx->Extensions.HP_occlusion_test)
 869                   _mesa_set_enable(ctx, GL_OCCLUSION_TEST_HP,
 870                                    depth->OcclusionTest);
 871             }
 872             break;
 873          case GL_ENABLE_BIT:
 874             {
 875                const struct gl_enable_attrib *enable;
 876                enable = (const struct gl_enable_attrib *) attr->data;
 877                pop_enable_group(ctx, enable);
 878                ctx->NewState |= _NEW_ALL;
 879             }
 880             break;
 881          case GL_EVAL_BIT:
 882             MEMCPY( &ctx->Eval, attr->data, sizeof(struct gl_eval_attrib) );
 883             ctx->NewState |= _NEW_EVAL;
 884             break;
 885          case GL_FOG_BIT:
 886             {
 887                const struct gl_fog_attrib *fog;
 888                fog = (const struct gl_fog_attrib *) attr->data;
 889                _mesa_set_enable(ctx, GL_FOG, fog->Enabled);
 890                _mesa_Fogfv(GL_FOG_COLOR, fog->Color);
 891                _mesa_Fogf(GL_FOG_DENSITY, fog->Density);
 892                _mesa_Fogf(GL_FOG_START, fog->Start);
 893                _mesa_Fogf(GL_FOG_END, fog->End);
 894                _mesa_Fogf(GL_FOG_INDEX, fog->Index);
 895                _mesa_Fogi(GL_FOG_MODE, fog->Mode);
 896             }
 897             break;
 898          case GL_HINT_BIT:
 899             {
 900                const struct gl_hint_attrib *hint;
 901                hint = (const struct gl_hint_attrib *) attr->data;
 902                _mesa_Hint(GL_PERSPECTIVE_CORRECTION_HINT,
 903                           hint->PerspectiveCorrection );
 904                _mesa_Hint(GL_POINT_SMOOTH_HINT, hint->PointSmooth);
 905                _mesa_Hint(GL_LINE_SMOOTH_HINT, hint->LineSmooth);
 906                _mesa_Hint(GL_POLYGON_SMOOTH_HINT, hint->PolygonSmooth);
 907                _mesa_Hint(GL_FOG_HINT, hint->Fog);
 908                _mesa_Hint(GL_CLIP_VOLUME_CLIPPING_HINT_EXT,
 909                           hint->ClipVolumeClipping);
 910                if (ctx->Extensions.ARB_texture_compression)
 911                   _mesa_Hint(GL_TEXTURE_COMPRESSION_HINT_ARB,
 912                              hint->TextureCompression);
 913             }
 914             break;
 915          case GL_LIGHTING_BIT:
 916             {
 917                GLuint i;
 918                const struct gl_light_attrib *light;
 919                light = (const struct gl_light_attrib *) attr->data;
 920                /* lighting enable */
 921                _mesa_set_enable(ctx, GL_LIGHTING, light->Enabled);
 922                /* per-light state */
 923
 924                if (ctx->ModelviewMatrixStack.Top->flags & MAT_DIRTY_INVERSE)
 925                   _math_matrix_analyse( ctx->ModelviewMatrixStack.Top );
 926
 927                for (i = 0; i < MAX_LIGHTS; i++) {
 928                   GLenum lgt = (GLenum) (GL_LIGHT0 + i);
 929                   const struct gl_light *l = &light->Light[i];
 930                   GLfloat tmp[4];
 931                   _mesa_set_enable(ctx, lgt, l->Enabled);
 932                   _mesa_Lightfv( lgt, GL_AMBIENT, l->Ambient );
 933                   _mesa_Lightfv( lgt, GL_DIFFUSE, l->Diffuse );
 934                   _mesa_Lightfv( lgt, GL_SPECULAR, l->Specular );
 935                   TRANSFORM_POINT( tmp, ctx->ModelviewMatrixStack.Top->inv, l->EyePosition );
 936                   _mesa_Lightfv( lgt, GL_POSITION, tmp );
 937                   TRANSFORM_POINT( tmp, ctx->ModelviewMatrixStack.Top->m, l->EyeDirection );
 938                   _mesa_Lightfv( lgt, GL_SPOT_DIRECTION, tmp );
 939                   _mesa_Lightfv( lgt, GL_SPOT_EXPONENT, &l->SpotExponent );
 940                   _mesa_Lightfv( lgt, GL_SPOT_CUTOFF, &l->SpotCutoff );
 941                   _mesa_Lightfv( lgt, GL_CONSTANT_ATTENUATION,
 942                                  &l->ConstantAttenuation );
 943                   _mesa_Lightfv( lgt, GL_LINEAR_ATTENUATION,
 944                                  &l->LinearAttenuation );
 945                   _mesa_Lightfv( lgt, GL_QUADRATIC_ATTENUATION,
 946                                  &l->QuadraticAttenuation );
 947                }
 948                /* light model */
 949                _mesa_LightModelfv(GL_LIGHT_MODEL_AMBIENT,
 950                                   light->Model.Ambient);
 951                _mesa_LightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER,
 952                                  (GLfloat) light->Model.LocalViewer);
 953                _mesa_LightModelf(GL_LIGHT_MODEL_TWO_SIDE,
 954                                  (GLfloat) light->Model.TwoSide);
 955                _mesa_LightModelf(GL_LIGHT_MODEL_COLOR_CONTROL,
 956                                  (GLfloat) light->Model.ColorControl);
 957                /* materials */
 958                MEMCPY(ctx->Light.Material, light->Material,
 959                       2 * sizeof(struct gl_material));
 960                /* shade model */
 961                _mesa_ShadeModel(light->ShadeModel);
 962                /* color material */
 963                _mesa_ColorMaterial(light->ColorMaterialFace,
 964                                    light->ColorMaterialMode);
 965                _mesa_set_enable(ctx, GL_COLOR_MATERIAL,
 966                                 light->ColorMaterialEnabled);
 967             }
 968             break;
 969          case GL_LINE_BIT:
 970             {
 971                const struct gl_line_attrib *line;
 972                line = (const struct gl_line_attrib *) attr->data;
 973                _mesa_set_enable(ctx, GL_LINE_SMOOTH, line->SmoothFlag);
 974                _mesa_set_enable(ctx, GL_LINE_STIPPLE, line->StippleFlag);
 975                _mesa_LineStipple(line->StippleFactor, line->StipplePattern);
 976                _mesa_LineWidth(line->Width);
 977             }
 978             break;
 979          case GL_LIST_BIT:
 980             MEMCPY( &ctx->List, attr->data, sizeof(struct gl_list_attrib) );
 981             break;
 982          case GL_PIXEL_MODE_BIT:
 983             MEMCPY( &ctx->Pixel, attr->data, sizeof(struct gl_pixel_attrib) );
 984             ctx->NewState |= _NEW_PIXEL;
 985             break;
 986          case GL_POINT_BIT:
 987             {
 988                const struct gl_point_attrib *point;
 989                point = (const struct gl_point_attrib *) attr->data;
 990                _mesa_PointSize(point->Size);
 991                _mesa_set_enable(ctx, GL_POINT_SMOOTH, point->SmoothFlag);
 992                if (ctx->Extensions.EXT_point_parameters) {
 993                   _mesa_PointParameterfvEXT(GL_DISTANCE_ATTENUATION_EXT,
 994                                             point->Params);
 995                   _mesa_PointParameterfEXT(GL_POINT_SIZE_MIN_EXT,
 996                                            point->MinSize);
 997                   _mesa_PointParameterfEXT(GL_POINT_SIZE_MAX_EXT,
 998                                            point->MaxSize);
 999                   _mesa_PointParameterfEXT(GL_POINT_FADE_THRESHOLD_SIZE_EXT,
1000                                            point->Threshold);
1001                }
1002                if (ctx->Extensions.NV_point_sprite) {
1003                   GLuint u;
1004                   for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
1005                      _mesa_TexEnvi(GL_POINT_SPRITE_NV, GL_COORD_REPLACE_NV,
1006                                    (GLint) point->CoordReplace[u]);
1007                   }
1008                   _mesa_set_enable(ctx, GL_POINT_SPRITE_NV,point->PointSprite);
1009                   _mesa_PointParameteriNV(GL_POINT_SPRITE_R_MODE_NV,
1010                                           ctx->Point.SpriteRMode);
1011                }
1012             }
1013             break;
1014          case GL_POLYGON_BIT:
1015             {
1016                const struct gl_polygon_attrib *polygon;
1017                polygon = (const struct gl_polygon_attrib *) attr->data;
1018                _mesa_CullFace(polygon->CullFaceMode);
1019                _mesa_FrontFace(polygon->FrontFace);
1020                _mesa_PolygonMode(GL_FRONT, polygon->FrontMode);
1021                _mesa_PolygonMode(GL_BACK, polygon->BackMode);
1022                _mesa_PolygonOffset(polygon->OffsetFactor,
1023                                    polygon->OffsetUnits);
1024                _mesa_set_enable(ctx, GL_POLYGON_SMOOTH, polygon->SmoothFlag);
1025                _mesa_set_enable(ctx, GL_POLYGON_STIPPLE, polygon->StippleFlag);
1026                _mesa_set_enable(ctx, GL_CULL_FACE, polygon->CullFlag);
1027                _mesa_set_enable(ctx, GL_POLYGON_OFFSET_POINT,
1028                                 polygon->OffsetPoint);
1029                _mesa_set_enable(ctx, GL_POLYGON_OFFSET_LINE,
1030                                 polygon->OffsetLine);
1031                _mesa_set_enable(ctx, GL_POLYGON_OFFSET_FILL,
1032                                 polygon->OffsetFill);
1033             }
1034             break;
1035          case GL_POLYGON_STIPPLE_BIT:
1036             MEMCPY( ctx->PolygonStipple, attr->data, 32*sizeof(GLuint) );
1037             ctx->NewState |= _NEW_POLYGONSTIPPLE;
1038             if (ctx->Driver.PolygonStipple)
1039                ctx->Driver.PolygonStipple( ctx, (const GLubyte *) attr->data );
1040             break;
1041          case GL_SCISSOR_BIT:
1042             {
1043                const struct gl_scissor_attrib *scissor;
1044                scissor = (const struct gl_scissor_attrib *) attr->data;
1045                _mesa_Scissor(scissor->X, scissor->Y,
1046                              scissor->Width, scissor->Height);
1047                _mesa_set_enable(ctx, GL_SCISSOR_TEST, scissor->Enabled);
1048             }
1049             break;
1050          case GL_STENCIL_BUFFER_BIT:
1051             {
1052                const GLint face = 0; /* XXX stencil two side */
1053                const struct gl_stencil_attrib *stencil;
1054                stencil = (const struct gl_stencil_attrib *) attr->data;
1055                _mesa_set_enable(ctx, GL_STENCIL_TEST, stencil->Enabled);
1056                _mesa_ClearStencil(stencil->Clear);
1057                _mesa_StencilFunc(stencil->Function[face], stencil->Ref[face],
1058                                  stencil->ValueMask[face]);
1059                _mesa_StencilMask(stencil->WriteMask[face]);
1060                _mesa_StencilOp(stencil->FailFunc[face],
1061                                stencil->ZFailFunc[face],
1062                                stencil->ZPassFunc[face]);
1063             }
1064             break;
1065          case GL_TRANSFORM_BIT:
1066             {
1067                GLuint i;
1068                const struct gl_transform_attrib *xform;
1069                xform = (const struct gl_transform_attrib *) attr->data;
1070                _mesa_MatrixMode(xform->MatrixMode);
1071
1072                if (ctx->ProjectionMatrixStack.Top->flags & MAT_DIRTY)
1073                   _math_matrix_analyse( ctx->ProjectionMatrixStack.Top );
1074
1075                /* restore clip planes */
1076                for (i = 0; i < MAX_CLIP_PLANES; i++) {
1077                   const GLuint mask = 1 << 1;
1078                   const GLfloat *eyePlane = xform->EyeUserPlane[i];
1079                   COPY_4V(ctx->Transform.EyeUserPlane[i], eyePlane);
1080                   if (xform->ClipPlanesEnabled & mask) {
1081                      _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_TRUE);
1082                   }
1083                   else {
1084                      _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_FALSE);
1085                   }
1086                   if (ctx->Driver.ClipPlane)
1087                      ctx->Driver.ClipPlane( ctx, GL_CLIP_PLANE0 + i, eyePlane );
1088                }
1089
1090                /* normalize/rescale */
1091                if (xform->Normalize != ctx->Transform.Normalize)
1092                   _mesa_set_enable(ctx, GL_NORMALIZE,ctx->Transform.Normalize);
1093                if (xform->RescaleNormals != ctx->Transform.RescaleNormals)
1094                   _mesa_set_enable(ctx, GL_RESCALE_NORMAL_EXT,
1095                                    ctx->Transform.RescaleNormals);
1096             }
1097             break;
1098          case GL_TEXTURE_BIT:
1099             /* Take care of texture object reference counters */
1100             {
1101                const struct gl_texture_attrib *texture;
1102                texture = (const struct gl_texture_attrib *) attr->data;
1103                pop_texture_group(ctx, texture);
1104                ctx->NewState |= _NEW_TEXTURE;
1105             }
1106             break;
1107          case GL_VIEWPORT_BIT:
1108             {
1109                const struct gl_viewport_attrib *vp;
1110                vp = (const struct gl_viewport_attrib *) attr->data;
1111                _mesa_Viewport(vp->X, vp->Y, vp->Width, vp->Height);
1112                _mesa_DepthRange(vp->Near, vp->Far);
1113             }
1114             break;
1115          case GL_MULTISAMPLE_BIT_ARB:
1116             {
1117                const struct gl_multisample_attrib *ms;
1118                ms = (const struct gl_multisample_attrib *) attr->data;
1119                _mesa_SampleCoverageARB(ms->SampleCoverageValue,
1120                                        ms->SampleCoverageInvert);
1121             }
1122             break;
1123
1124          default:
1125             _mesa_problem( ctx, "Bad attrib flag in PopAttrib");
1126             break;
1127       }
1128
1129       next = attr->next;
1130       FREE( attr->data );
1131       FREE( attr );
1132       attr = next;
1133    }
1134 }
1135
1136
1137 #define GL_CLIENT_PACK_BIT (1<<20)
1138 #define GL_CLIENT_UNPACK_BIT (1<<21)
1139
1140
1141 void
1142 _mesa_PushClientAttrib(GLbitfield mask)
1143 {
1144    struct gl_attrib_node *newnode;
1145    struct gl_attrib_node *head;
1146
1147    GET_CURRENT_CONTEXT(ctx);
1148    ASSERT_OUTSIDE_BEGIN_END(ctx);
1149
1150    if (ctx->ClientAttribStackDepth >= MAX_CLIENT_ATTRIB_STACK_DEPTH) {
1151       _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushClientAttrib" );
1152       return;
1153    }
1154
1155    /* Build linked list of attribute nodes which save all attribute */
1156    /* groups specified by the mask. */
1157    head = NULL;
1158
1159    if (mask & GL_CLIENT_PIXEL_STORE_BIT) {
1160       struct gl_pixelstore_attrib *attr;
1161       /* packing attribs */
1162       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
1163       MEMCPY( attr, &ctx->Pack, sizeof(struct gl_pixelstore_attrib) );
1164       newnode = new_attrib_node( GL_CLIENT_PACK_BIT );
1165       newnode->data = attr;
1166       newnode->next = head;
1167       head = newnode;
1168       /* unpacking attribs */
1169       attr = MALLOC_STRUCT( gl_pixelstore_attrib );
1170       MEMCPY( attr, &ctx->Unpack, sizeof(struct gl_pixelstore_attrib) );
1171       newnode = new_attrib_node( GL_CLIENT_UNPACK_BIT );
1172       newnode->data = attr;
1173       newnode->next = head;
1174       head = newnode;
1175    }
1176    if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) {
1177       struct gl_array_attrib *attr;
1178       attr = MALLOC_STRUCT( gl_array_attrib );
1179       MEMCPY( attr, &ctx->Array, sizeof(struct gl_array_attrib) );
1180       newnode = new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT );
1181       newnode->data = attr;
1182       newnode->next = head;
1183       head = newnode;
1184    }
1185
1186    ctx->ClientAttribStack[ctx->ClientAttribStackDepth] = head;
1187    ctx->ClientAttribStackDepth++;
1188 }
1189
1190
1191
1192
1193 void
1194 _mesa_PopClientAttrib(void)
1195 {
1196    struct gl_attrib_node *attr, *next;
1197
1198    GET_CURRENT_CONTEXT(ctx);
1199    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1200
1201    if (ctx->ClientAttribStackDepth == 0) {
1202       _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopClientAttrib" );
1203       return;
1204    }
1205
1206    ctx->ClientAttribStackDepth--;
1207    attr = ctx->ClientAttribStack[ctx->ClientAttribStackDepth];
1208
1209    while (attr) {
1210       switch (attr->kind) {
1211          case GL_CLIENT_PACK_BIT:
1212             MEMCPY( &ctx->Pack, attr->data,
1213                     sizeof(struct gl_pixelstore_attrib) );
1214             ctx->NewState |= _NEW_PACKUNPACK;
1215             break;
1216          case GL_CLIENT_UNPACK_BIT:
1217             MEMCPY( &ctx->Unpack, attr->data,
1218                     sizeof(struct gl_pixelstore_attrib) );
1219             ctx->NewState |= _NEW_PACKUNPACK;
1220             break;
1221          case GL_CLIENT_VERTEX_ARRAY_BIT:
1222             MEMCPY( &ctx->Array, attr->data,
1223                     sizeof(struct gl_array_attrib) );
1224             ctx->NewState |= _NEW_ARRAY;
1225             break;
1226          default:
1227             _mesa_problem( ctx, "Bad attrib flag in PopClientAttrib");
1228             break;
1229       }
1230
1231       next = attr->next;
1232       FREE( attr->data );
1233       FREE( attr );
1234       attr = next;
1235    }
1236 }