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attrib.c
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00001 /* 00002 * Mesa 3-D graphics library 00003 * Version: 7.3 00004 * 00005 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. 00006 * Copyright (C) 2009 VMware, Inc. All Rights Reserved. 00007 * 00008 * Permission is hereby granted, free of charge, to any person obtaining a 00009 * copy of this software and associated documentation files (the "Software"), 00010 * to deal in the Software without restriction, including without limitation 00011 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 00012 * and/or sell copies of the Software, and to permit persons to whom the 00013 * Software is furnished to do so, subject to the following conditions: 00014 * 00015 * The above copyright notice and this permission notice shall be included 00016 * in all copies or substantial portions of the Software. 00017 * 00018 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 00019 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00020 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 00021 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 00022 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 00023 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00024 */ 00025 00026 #include "glheader.h" 00027 #include "imports.h" 00028 #include "accum.h" 00029 #include "arrayobj.h" 00030 #include "attrib.h" 00031 #include "blend.h" 00032 #include "buffers.h" 00033 #include "bufferobj.h" 00034 #include "clear.h" 00035 #include "colormac.h" 00036 #include "colortab.h" 00037 #include "context.h" 00038 #include "depth.h" 00039 #include "enable.h" 00040 #include "enums.h" 00041 #include "fog.h" 00042 #include "hint.h" 00043 #include "light.h" 00044 #include "lines.h" 00045 #include "matrix.h" 00046 #include "multisample.h" 00047 #include "points.h" 00048 #include "polygon.h" 00049 #include "scissor.h" 00050 #include "simple_list.h" 00051 #include "stencil.h" 00052 #include "texenv.h" 00053 #include "texgen.h" 00054 #include "texobj.h" 00055 #include "texparam.h" 00056 #include "texstate.h" 00057 #include "varray.h" 00058 #include "mtypes.h" 00059 #include "math/m_xform.h" 00060 00064 struct texture_state 00065 { 00066 struct gl_texture_attrib Texture; 00069 struct gl_texture_object SavedObj[MAX_TEXTURE_UNITS][NUM_TEXTURE_TARGETS]; 00070 00075 struct gl_texture_object *SavedTexRef[MAX_TEXTURE_UNITS][NUM_TEXTURE_TARGETS]; 00076 }; 00077 00078 00083 static struct gl_attrib_node * 00084 new_attrib_node( GLbitfield kind ) 00085 { 00086 struct gl_attrib_node *an = MALLOC_STRUCT(gl_attrib_node); 00087 if (an) { 00088 an->kind = kind; 00089 } 00090 return an; 00091 } 00092 00093 00094 void GLAPIENTRY 00095 _mesa_PushAttrib(GLbitfield mask) 00096 { 00097 struct gl_attrib_node *newnode; 00098 struct gl_attrib_node *head; 00099 00100 GET_CURRENT_CONTEXT(ctx); 00101 ASSERT_OUTSIDE_BEGIN_END(ctx); 00102 00103 if (MESA_VERBOSE & VERBOSE_API) 00104 _mesa_debug(ctx, "glPushAttrib %x\n", (int) mask); 00105 00106 if (ctx->AttribStackDepth >= MAX_ATTRIB_STACK_DEPTH) { 00107 _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushAttrib" ); 00108 return; 00109 } 00110 00111 /* Build linked list of attribute nodes which save all attribute */ 00112 /* groups specified by the mask. */ 00113 head = NULL; 00114 00115 if (mask & GL_ACCUM_BUFFER_BIT) { 00116 struct gl_accum_attrib *attr; 00117 attr = MALLOC_STRUCT( gl_accum_attrib ); 00118 MEMCPY( attr, &ctx->Accum, sizeof(struct gl_accum_attrib) ); 00119 newnode = new_attrib_node( GL_ACCUM_BUFFER_BIT ); 00120 newnode->data = attr; 00121 newnode->next = head; 00122 head = newnode; 00123 } 00124 00125 if (mask & GL_COLOR_BUFFER_BIT) { 00126 GLuint i; 00127 struct gl_colorbuffer_attrib *attr; 00128 attr = MALLOC_STRUCT( gl_colorbuffer_attrib ); 00129 MEMCPY( attr, &ctx->Color, sizeof(struct gl_colorbuffer_attrib) ); 00130 /* push the Draw FBO's DrawBuffer[] state, not ctx->Color.DrawBuffer[] */ 00131 for (i = 0; i < ctx->Const.MaxDrawBuffers; i ++) 00132 attr->DrawBuffer[i] = ctx->DrawBuffer->ColorDrawBuffer[i]; 00133 newnode = new_attrib_node( GL_COLOR_BUFFER_BIT ); 00134 newnode->data = attr; 00135 newnode->next = head; 00136 head = newnode; 00137 } 00138 00139 if (mask & GL_CURRENT_BIT) { 00140 struct gl_current_attrib *attr; 00141 FLUSH_CURRENT( ctx, 0 ); 00142 attr = MALLOC_STRUCT( gl_current_attrib ); 00143 MEMCPY( attr, &ctx->Current, sizeof(struct gl_current_attrib) ); 00144 newnode = new_attrib_node( GL_CURRENT_BIT ); 00145 newnode->data = attr; 00146 newnode->next = head; 00147 head = newnode; 00148 } 00149 00150 if (mask & GL_DEPTH_BUFFER_BIT) { 00151 struct gl_depthbuffer_attrib *attr; 00152 attr = MALLOC_STRUCT( gl_depthbuffer_attrib ); 00153 MEMCPY( attr, &ctx->Depth, sizeof(struct gl_depthbuffer_attrib) ); 00154 newnode = new_attrib_node( GL_DEPTH_BUFFER_BIT ); 00155 newnode->data = attr; 00156 newnode->next = head; 00157 head = newnode; 00158 } 00159 00160 if (mask & GL_ENABLE_BIT) { 00161 struct gl_enable_attrib *attr; 00162 GLuint i; 00163 attr = MALLOC_STRUCT( gl_enable_attrib ); 00164 /* Copy enable flags from all other attributes into the enable struct. */ 00165 attr->AlphaTest = ctx->Color.AlphaEnabled; 00166 attr->AutoNormal = ctx->Eval.AutoNormal; 00167 attr->Blend = ctx->Color.BlendEnabled; 00168 attr->ClipPlanes = ctx->Transform.ClipPlanesEnabled; 00169 attr->ColorMaterial = ctx->Light.ColorMaterialEnabled; 00170 for (i = 0; i < COLORTABLE_MAX; i++) { 00171 attr->ColorTable[i] = ctx->Pixel.ColorTableEnabled[i]; 00172 } 00173 attr->Convolution1D = ctx->Pixel.Convolution1DEnabled; 00174 attr->Convolution2D = ctx->Pixel.Convolution2DEnabled; 00175 attr->Separable2D = ctx->Pixel.Separable2DEnabled; 00176 attr->CullFace = ctx->Polygon.CullFlag; 00177 attr->DepthTest = ctx->Depth.Test; 00178 attr->Dither = ctx->Color.DitherFlag; 00179 attr->Fog = ctx->Fog.Enabled; 00180 for (i = 0; i < ctx->Const.MaxLights; i++) { 00181 attr->Light[i] = ctx->Light.Light[i].Enabled; 00182 } 00183 attr->Lighting = ctx->Light.Enabled; 00184 attr->LineSmooth = ctx->Line.SmoothFlag; 00185 attr->LineStipple = ctx->Line.StippleFlag; 00186 attr->Histogram = ctx->Pixel.HistogramEnabled; 00187 attr->MinMax = ctx->Pixel.MinMaxEnabled; 00188 attr->IndexLogicOp = ctx->Color.IndexLogicOpEnabled; 00189 attr->ColorLogicOp = ctx->Color.ColorLogicOpEnabled; 00190 attr->Map1Color4 = ctx->Eval.Map1Color4; 00191 attr->Map1Index = ctx->Eval.Map1Index; 00192 attr->Map1Normal = ctx->Eval.Map1Normal; 00193 attr->Map1TextureCoord1 = ctx->Eval.Map1TextureCoord1; 00194 attr->Map1TextureCoord2 = ctx->Eval.Map1TextureCoord2; 00195 attr->Map1TextureCoord3 = ctx->Eval.Map1TextureCoord3; 00196 attr->Map1TextureCoord4 = ctx->Eval.Map1TextureCoord4; 00197 attr->Map1Vertex3 = ctx->Eval.Map1Vertex3; 00198 attr->Map1Vertex4 = ctx->Eval.Map1Vertex4; 00199 MEMCPY(attr->Map1Attrib, ctx->Eval.Map1Attrib, sizeof(ctx->Eval.Map1Attrib)); 00200 attr->Map2Color4 = ctx->Eval.Map2Color4; 00201 attr->Map2Index = ctx->Eval.Map2Index; 00202 attr->Map2Normal = ctx->Eval.Map2Normal; 00203 attr->Map2TextureCoord1 = ctx->Eval.Map2TextureCoord1; 00204 attr->Map2TextureCoord2 = ctx->Eval.Map2TextureCoord2; 00205 attr->Map2TextureCoord3 = ctx->Eval.Map2TextureCoord3; 00206 attr->Map2TextureCoord4 = ctx->Eval.Map2TextureCoord4; 00207 attr->Map2Vertex3 = ctx->Eval.Map2Vertex3; 00208 attr->Map2Vertex4 = ctx->Eval.Map2Vertex4; 00209 MEMCPY(attr->Map2Attrib, ctx->Eval.Map2Attrib, sizeof(ctx->Eval.Map2Attrib)); 00210 attr->Normalize = ctx->Transform.Normalize; 00211 attr->RasterPositionUnclipped = ctx->Transform.RasterPositionUnclipped; 00212 attr->PointSmooth = ctx->Point.SmoothFlag; 00213 attr->PointSprite = ctx->Point.PointSprite; 00214 attr->PolygonOffsetPoint = ctx->Polygon.OffsetPoint; 00215 attr->PolygonOffsetLine = ctx->Polygon.OffsetLine; 00216 attr->PolygonOffsetFill = ctx->Polygon.OffsetFill; 00217 attr->PolygonSmooth = ctx->Polygon.SmoothFlag; 00218 attr->PolygonStipple = ctx->Polygon.StippleFlag; 00219 attr->RescaleNormals = ctx->Transform.RescaleNormals; 00220 attr->Scissor = ctx->Scissor.Enabled; 00221 attr->Stencil = ctx->Stencil.Enabled; 00222 attr->StencilTwoSide = ctx->Stencil.TestTwoSide; 00223 attr->MultisampleEnabled = ctx->Multisample.Enabled; 00224 attr->SampleAlphaToCoverage = ctx->Multisample.SampleAlphaToCoverage; 00225 attr->SampleAlphaToOne = ctx->Multisample.SampleAlphaToOne; 00226 attr->SampleCoverage = ctx->Multisample.SampleCoverage; 00227 attr->SampleCoverageInvert = ctx->Multisample.SampleCoverageInvert; 00228 for (i = 0; i < ctx->Const.MaxTextureUnits; i++) { 00229 attr->Texture[i] = ctx->Texture.Unit[i].Enabled; 00230 attr->TexGen[i] = ctx->Texture.Unit[i].TexGenEnabled; 00231 attr->TextureColorTable[i] = ctx->Texture.Unit[i].ColorTableEnabled; 00232 } 00233 /* GL_NV_vertex_program */ 00234 attr->VertexProgram = ctx->VertexProgram.Enabled; 00235 attr->VertexProgramPointSize = ctx->VertexProgram.PointSizeEnabled; 00236 attr->VertexProgramTwoSide = ctx->VertexProgram.TwoSideEnabled; 00237 newnode = new_attrib_node( GL_ENABLE_BIT ); 00238 newnode->data = attr; 00239 newnode->next = head; 00240 head = newnode; 00241 } 00242 00243 if (mask & GL_EVAL_BIT) { 00244 struct gl_eval_attrib *attr; 00245 attr = MALLOC_STRUCT( gl_eval_attrib ); 00246 MEMCPY( attr, &ctx->Eval, sizeof(struct gl_eval_attrib) ); 00247 newnode = new_attrib_node( GL_EVAL_BIT ); 00248 newnode->data = attr; 00249 newnode->next = head; 00250 head = newnode; 00251 } 00252 00253 if (mask & GL_FOG_BIT) { 00254 struct gl_fog_attrib *attr; 00255 attr = MALLOC_STRUCT( gl_fog_attrib ); 00256 MEMCPY( attr, &ctx->Fog, sizeof(struct gl_fog_attrib) ); 00257 newnode = new_attrib_node( GL_FOG_BIT ); 00258 newnode->data = attr; 00259 newnode->next = head; 00260 head = newnode; 00261 } 00262 00263 if (mask & GL_HINT_BIT) { 00264 struct gl_hint_attrib *attr; 00265 attr = MALLOC_STRUCT( gl_hint_attrib ); 00266 MEMCPY( attr, &ctx->Hint, sizeof(struct gl_hint_attrib) ); 00267 newnode = new_attrib_node( GL_HINT_BIT ); 00268 newnode->data = attr; 00269 newnode->next = head; 00270 head = newnode; 00271 } 00272 00273 if (mask & GL_LIGHTING_BIT) { 00274 struct gl_light_attrib *attr; 00275 FLUSH_CURRENT(ctx, 0); /* flush material changes */ 00276 attr = MALLOC_STRUCT( gl_light_attrib ); 00277 MEMCPY( attr, &ctx->Light, sizeof(struct gl_light_attrib) ); 00278 newnode = new_attrib_node( GL_LIGHTING_BIT ); 00279 newnode->data = attr; 00280 newnode->next = head; 00281 head = newnode; 00282 } 00283 00284 if (mask & GL_LINE_BIT) { 00285 struct gl_line_attrib *attr; 00286 attr = MALLOC_STRUCT( gl_line_attrib ); 00287 MEMCPY( attr, &ctx->Line, sizeof(struct gl_line_attrib) ); 00288 newnode = new_attrib_node( GL_LINE_BIT ); 00289 newnode->data = attr; 00290 newnode->next = head; 00291 head = newnode; 00292 } 00293 00294 if (mask & GL_LIST_BIT) { 00295 struct gl_list_attrib *attr; 00296 attr = MALLOC_STRUCT( gl_list_attrib ); 00297 MEMCPY( attr, &ctx->List, sizeof(struct gl_list_attrib) ); 00298 newnode = new_attrib_node( GL_LIST_BIT ); 00299 newnode->data = attr; 00300 newnode->next = head; 00301 head = newnode; 00302 } 00303 00304 if (mask & GL_PIXEL_MODE_BIT) { 00305 struct gl_pixel_attrib *attr; 00306 attr = MALLOC_STRUCT( gl_pixel_attrib ); 00307 MEMCPY( attr, &ctx->Pixel, sizeof(struct gl_pixel_attrib) ); 00308 /* push the Read FBO's ReadBuffer state, not ctx->Pixel.ReadBuffer */ 00309 attr->ReadBuffer = ctx->ReadBuffer->ColorReadBuffer; 00310 newnode = new_attrib_node( GL_PIXEL_MODE_BIT ); 00311 newnode->data = attr; 00312 newnode->next = head; 00313 head = newnode; 00314 } 00315 00316 if (mask & GL_POINT_BIT) { 00317 struct gl_point_attrib *attr; 00318 attr = MALLOC_STRUCT( gl_point_attrib ); 00319 MEMCPY( attr, &ctx->Point, sizeof(struct gl_point_attrib) ); 00320 newnode = new_attrib_node( GL_POINT_BIT ); 00321 newnode->data = attr; 00322 newnode->next = head; 00323 head = newnode; 00324 } 00325 00326 if (mask & GL_POLYGON_BIT) { 00327 struct gl_polygon_attrib *attr; 00328 attr = MALLOC_STRUCT( gl_polygon_attrib ); 00329 MEMCPY( attr, &ctx->Polygon, sizeof(struct gl_polygon_attrib) ); 00330 newnode = new_attrib_node( GL_POLYGON_BIT ); 00331 newnode->data = attr; 00332 newnode->next = head; 00333 head = newnode; 00334 } 00335 00336 if (mask & GL_POLYGON_STIPPLE_BIT) { 00337 GLuint *stipple; 00338 stipple = (GLuint *) MALLOC( 32*sizeof(GLuint) ); 00339 MEMCPY( stipple, ctx->PolygonStipple, 32*sizeof(GLuint) ); 00340 newnode = new_attrib_node( GL_POLYGON_STIPPLE_BIT ); 00341 newnode->data = stipple; 00342 newnode->next = head; 00343 head = newnode; 00344 } 00345 00346 if (mask & GL_SCISSOR_BIT) { 00347 struct gl_scissor_attrib *attr; 00348 attr = MALLOC_STRUCT( gl_scissor_attrib ); 00349 MEMCPY( attr, &ctx->Scissor, sizeof(struct gl_scissor_attrib) ); 00350 newnode = new_attrib_node( GL_SCISSOR_BIT ); 00351 newnode->data = attr; 00352 newnode->next = head; 00353 head = newnode; 00354 } 00355 00356 if (mask & GL_STENCIL_BUFFER_BIT) { 00357 struct gl_stencil_attrib *attr; 00358 attr = MALLOC_STRUCT( gl_stencil_attrib ); 00359 MEMCPY( attr, &ctx->Stencil, sizeof(struct gl_stencil_attrib) ); 00360 newnode = new_attrib_node( GL_STENCIL_BUFFER_BIT ); 00361 newnode->data = attr; 00362 newnode->next = head; 00363 head = newnode; 00364 } 00365 00366 if (mask & GL_TEXTURE_BIT) { 00367 struct texture_state *texstate = CALLOC_STRUCT(texture_state); 00368 GLuint u, tex; 00369 00370 if (!texstate) { 00371 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glPushAttrib(GL_TEXTURE_BIT)"); 00372 goto end; 00373 } 00374 00375 _mesa_lock_context_textures(ctx); 00376 00377 /* copy/save the bulk of texture state here */ 00378 _mesa_memcpy(&texstate->Texture, &ctx->Texture, sizeof(ctx->Texture)); 00379 00380 /* Save references to the currently bound texture objects so they don't 00381 * accidentally get deleted while referenced in the attribute stack. 00382 */ 00383 for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { 00384 for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) { 00385 _mesa_reference_texobj(&texstate->SavedTexRef[u][tex], 00386 ctx->Texture.Unit[u].CurrentTex[tex]); 00387 } 00388 } 00389 00390 /* copy state/contents of the currently bound texture objects */ 00391 for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { 00392 for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) { 00393 _mesa_copy_texture_object(&texstate->SavedObj[u][tex], 00394 ctx->Texture.Unit[u].CurrentTex[tex]); 00395 } 00396 } 00397 00398 _mesa_unlock_context_textures(ctx); 00399 00400 newnode = new_attrib_node( GL_TEXTURE_BIT ); 00401 newnode->data = texstate; 00402 newnode->next = head; 00403 head = newnode; 00404 } 00405 00406 if (mask & GL_TRANSFORM_BIT) { 00407 struct gl_transform_attrib *attr; 00408 attr = MALLOC_STRUCT( gl_transform_attrib ); 00409 MEMCPY( attr, &ctx->Transform, sizeof(struct gl_transform_attrib) ); 00410 newnode = new_attrib_node( GL_TRANSFORM_BIT ); 00411 newnode->data = attr; 00412 newnode->next = head; 00413 head = newnode; 00414 } 00415 00416 if (mask & GL_VIEWPORT_BIT) { 00417 struct gl_viewport_attrib *attr; 00418 attr = MALLOC_STRUCT( gl_viewport_attrib ); 00419 MEMCPY( attr, &ctx->Viewport, sizeof(struct gl_viewport_attrib) ); 00420 newnode = new_attrib_node( GL_VIEWPORT_BIT ); 00421 newnode->data = attr; 00422 newnode->next = head; 00423 head = newnode; 00424 } 00425 00426 /* GL_ARB_multisample */ 00427 if (mask & GL_MULTISAMPLE_BIT_ARB) { 00428 struct gl_multisample_attrib *attr; 00429 attr = MALLOC_STRUCT( gl_multisample_attrib ); 00430 MEMCPY( attr, &ctx->Multisample, sizeof(struct gl_multisample_attrib) ); 00431 newnode = new_attrib_node( GL_MULTISAMPLE_BIT_ARB ); 00432 newnode->data = attr; 00433 newnode->next = head; 00434 head = newnode; 00435 } 00436 00437 end: 00438 ctx->AttribStack[ctx->AttribStackDepth] = head; 00439 ctx->AttribStackDepth++; 00440 } 00441 00442 00443 00444 static void 00445 pop_enable_group(GLcontext *ctx, const struct gl_enable_attrib *enable) 00446 { 00447 GLuint i; 00448 00449 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM) \ 00450 if ((VALUE) != (NEWVALUE)) { \ 00451 _mesa_set_enable( ctx, ENUM, (NEWVALUE) ); \ 00452 } 00453 00454 TEST_AND_UPDATE(ctx->Color.AlphaEnabled, enable->AlphaTest, GL_ALPHA_TEST); 00455 TEST_AND_UPDATE(ctx->Color.BlendEnabled, enable->Blend, GL_BLEND); 00456 00457 for (i=0;i<MAX_CLIP_PLANES;i++) { 00458 const GLuint mask = 1 << i; 00459 if ((ctx->Transform.ClipPlanesEnabled & mask) != (enable->ClipPlanes & mask)) 00460 _mesa_set_enable(ctx, (GLenum) (GL_CLIP_PLANE0 + i), 00461 (GLboolean) ((enable->ClipPlanes & mask) ? GL_TRUE : GL_FALSE)); 00462 } 00463 00464 TEST_AND_UPDATE(ctx->Light.ColorMaterialEnabled, enable->ColorMaterial, 00465 GL_COLOR_MATERIAL); 00466 TEST_AND_UPDATE(ctx->Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION], 00467 enable->ColorTable[COLORTABLE_PRECONVOLUTION], 00468 GL_COLOR_TABLE); 00469 TEST_AND_UPDATE(ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION], 00470 enable->ColorTable[COLORTABLE_POSTCONVOLUTION], 00471 GL_POST_CONVOLUTION_COLOR_TABLE); 00472 TEST_AND_UPDATE(ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCOLORMATRIX], 00473 enable->ColorTable[COLORTABLE_POSTCOLORMATRIX], 00474 GL_POST_COLOR_MATRIX_COLOR_TABLE); 00475 TEST_AND_UPDATE(ctx->Polygon.CullFlag, enable->CullFace, GL_CULL_FACE); 00476 TEST_AND_UPDATE(ctx->Depth.Test, enable->DepthTest, GL_DEPTH_TEST); 00477 TEST_AND_UPDATE(ctx->Color.DitherFlag, enable->Dither, GL_DITHER); 00478 TEST_AND_UPDATE(ctx->Pixel.Convolution1DEnabled, enable->Convolution1D, 00479 GL_CONVOLUTION_1D); 00480 TEST_AND_UPDATE(ctx->Pixel.Convolution2DEnabled, enable->Convolution2D, 00481 GL_CONVOLUTION_2D); 00482 TEST_AND_UPDATE(ctx->Pixel.Separable2DEnabled, enable->Separable2D, 00483 GL_SEPARABLE_2D); 00484 TEST_AND_UPDATE(ctx->Fog.Enabled, enable->Fog, GL_FOG); 00485 TEST_AND_UPDATE(ctx->Light.Enabled, enable->Lighting, GL_LIGHTING); 00486 TEST_AND_UPDATE(ctx->Line.SmoothFlag, enable->LineSmooth, GL_LINE_SMOOTH); 00487 TEST_AND_UPDATE(ctx->Line.StippleFlag, enable->LineStipple, 00488 GL_LINE_STIPPLE); 00489 TEST_AND_UPDATE(ctx->Color.IndexLogicOpEnabled, enable->IndexLogicOp, 00490 GL_INDEX_LOGIC_OP); 00491 TEST_AND_UPDATE(ctx->Color.ColorLogicOpEnabled, enable->ColorLogicOp, 00492 GL_COLOR_LOGIC_OP); 00493 00494 TEST_AND_UPDATE(ctx->Eval.Map1Color4, enable->Map1Color4, GL_MAP1_COLOR_4); 00495 TEST_AND_UPDATE(ctx->Eval.Map1Index, enable->Map1Index, GL_MAP1_INDEX); 00496 TEST_AND_UPDATE(ctx->Eval.Map1Normal, enable->Map1Normal, GL_MAP1_NORMAL); 00497 TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord1, enable->Map1TextureCoord1, 00498 GL_MAP1_TEXTURE_COORD_1); 00499 TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord2, enable->Map1TextureCoord2, 00500 GL_MAP1_TEXTURE_COORD_2); 00501 TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord3, enable->Map1TextureCoord3, 00502 GL_MAP1_TEXTURE_COORD_3); 00503 TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord4, enable->Map1TextureCoord4, 00504 GL_MAP1_TEXTURE_COORD_4); 00505 TEST_AND_UPDATE(ctx->Eval.Map1Vertex3, enable->Map1Vertex3, 00506 GL_MAP1_VERTEX_3); 00507 TEST_AND_UPDATE(ctx->Eval.Map1Vertex4, enable->Map1Vertex4, 00508 GL_MAP1_VERTEX_4); 00509 for (i = 0; i < 16; i++) { 00510 TEST_AND_UPDATE(ctx->Eval.Map1Attrib[i], enable->Map1Attrib[i], 00511 GL_MAP1_VERTEX_ATTRIB0_4_NV + i); 00512 } 00513 00514 TEST_AND_UPDATE(ctx->Eval.Map2Color4, enable->Map2Color4, GL_MAP2_COLOR_4); 00515 TEST_AND_UPDATE(ctx->Eval.Map2Index, enable->Map2Index, GL_MAP2_INDEX); 00516 TEST_AND_UPDATE(ctx->Eval.Map2Normal, enable->Map2Normal, GL_MAP2_NORMAL); 00517 TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord1, enable->Map2TextureCoord1, 00518 GL_MAP2_TEXTURE_COORD_1); 00519 TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord2, enable->Map2TextureCoord2, 00520 GL_MAP2_TEXTURE_COORD_2); 00521 TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord3, enable->Map2TextureCoord3, 00522 GL_MAP2_TEXTURE_COORD_3); 00523 TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord4, enable->Map2TextureCoord4, 00524 GL_MAP2_TEXTURE_COORD_4); 00525 TEST_AND_UPDATE(ctx->Eval.Map2Vertex3, enable->Map2Vertex3, 00526 GL_MAP2_VERTEX_3); 00527 TEST_AND_UPDATE(ctx->Eval.Map2Vertex4, enable->Map2Vertex4, 00528 GL_MAP2_VERTEX_4); 00529 for (i = 0; i < 16; i++) { 00530 TEST_AND_UPDATE(ctx->Eval.Map2Attrib[i], enable->Map2Attrib[i], 00531 GL_MAP2_VERTEX_ATTRIB0_4_NV + i); 00532 } 00533 00534 TEST_AND_UPDATE(ctx->Eval.AutoNormal, enable->AutoNormal, GL_AUTO_NORMAL); 00535 TEST_AND_UPDATE(ctx->Transform.Normalize, enable->Normalize, GL_NORMALIZE); 00536 TEST_AND_UPDATE(ctx->Transform.RescaleNormals, enable->RescaleNormals, 00537 GL_RESCALE_NORMAL_EXT); 00538 TEST_AND_UPDATE(ctx->Transform.RasterPositionUnclipped, 00539 enable->RasterPositionUnclipped, 00540 GL_RASTER_POSITION_UNCLIPPED_IBM); 00541 TEST_AND_UPDATE(ctx->Point.SmoothFlag, enable->PointSmooth, 00542 GL_POINT_SMOOTH); 00543 if (ctx->Extensions.NV_point_sprite || ctx->Extensions.ARB_point_sprite) { 00544 TEST_AND_UPDATE(ctx->Point.PointSprite, enable->PointSprite, 00545 GL_POINT_SPRITE_NV); 00546 } 00547 TEST_AND_UPDATE(ctx->Polygon.OffsetPoint, enable->PolygonOffsetPoint, 00548 GL_POLYGON_OFFSET_POINT); 00549 TEST_AND_UPDATE(ctx->Polygon.OffsetLine, enable->PolygonOffsetLine, 00550 GL_POLYGON_OFFSET_LINE); 00551 TEST_AND_UPDATE(ctx->Polygon.OffsetFill, enable->PolygonOffsetFill, 00552 GL_POLYGON_OFFSET_FILL); 00553 TEST_AND_UPDATE(ctx->Polygon.SmoothFlag, enable->PolygonSmooth, 00554 GL_POLYGON_SMOOTH); 00555 TEST_AND_UPDATE(ctx->Polygon.StippleFlag, enable->PolygonStipple, 00556 GL_POLYGON_STIPPLE); 00557 TEST_AND_UPDATE(ctx->Scissor.Enabled, enable->Scissor, GL_SCISSOR_TEST); 00558 TEST_AND_UPDATE(ctx->Stencil.Enabled, enable->Stencil, GL_STENCIL_TEST); 00559 if (ctx->Extensions.EXT_stencil_two_side) { 00560 TEST_AND_UPDATE(ctx->Stencil.TestTwoSide, enable->StencilTwoSide, GL_STENCIL_TEST_TWO_SIDE_EXT); 00561 } 00562 TEST_AND_UPDATE(ctx->Multisample.Enabled, enable->MultisampleEnabled, 00563 GL_MULTISAMPLE_ARB); 00564 TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToCoverage, 00565 enable->SampleAlphaToCoverage, 00566 GL_SAMPLE_ALPHA_TO_COVERAGE_ARB); 00567 TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToOne, 00568 enable->SampleAlphaToOne, 00569 GL_SAMPLE_ALPHA_TO_ONE_ARB); 00570 TEST_AND_UPDATE(ctx->Multisample.SampleCoverage, 00571 enable->SampleCoverage, 00572 GL_SAMPLE_COVERAGE_ARB); 00573 TEST_AND_UPDATE(ctx->Multisample.SampleCoverageInvert, 00574 enable->SampleCoverageInvert, 00575 GL_SAMPLE_COVERAGE_INVERT_ARB); 00576 /* GL_ARB_vertex_program, GL_NV_vertex_program */ 00577 TEST_AND_UPDATE(ctx->VertexProgram.Enabled, 00578 enable->VertexProgram, 00579 GL_VERTEX_PROGRAM_ARB); 00580 TEST_AND_UPDATE(ctx->VertexProgram.PointSizeEnabled, 00581 enable->VertexProgramPointSize, 00582 GL_VERTEX_PROGRAM_POINT_SIZE_ARB); 00583 TEST_AND_UPDATE(ctx->VertexProgram.TwoSideEnabled, 00584 enable->VertexProgramTwoSide, 00585 GL_VERTEX_PROGRAM_TWO_SIDE_ARB); 00586 00587 #undef TEST_AND_UPDATE 00588 00589 /* texture unit enables */ 00590 for (i = 0; i < ctx->Const.MaxTextureUnits; i++) { 00591 if (ctx->Texture.Unit[i].Enabled != enable->Texture[i]) { 00592 ctx->Texture.Unit[i].Enabled = enable->Texture[i]; 00593 if (ctx->Driver.Enable) { 00594 if (ctx->Driver.ActiveTexture) { 00595 (*ctx->Driver.ActiveTexture)(ctx, i); 00596 } 00597 (*ctx->Driver.Enable)( ctx, GL_TEXTURE_1D, 00598 (GLboolean) (enable->Texture[i] & TEXTURE_1D_BIT) ); 00599 (*ctx->Driver.Enable)( ctx, GL_TEXTURE_2D, 00600 (GLboolean) (enable->Texture[i] & TEXTURE_2D_BIT) ); 00601 (*ctx->Driver.Enable)( ctx, GL_TEXTURE_3D, 00602 (GLboolean) (enable->Texture[i] & TEXTURE_3D_BIT) ); 00603 if (ctx->Extensions.ARB_texture_cube_map) 00604 (*ctx->Driver.Enable)( ctx, GL_TEXTURE_CUBE_MAP_ARB, 00605 (GLboolean) (enable->Texture[i] & TEXTURE_CUBE_BIT) ); 00606 if (ctx->Extensions.NV_texture_rectangle) 00607 (*ctx->Driver.Enable)( ctx, GL_TEXTURE_RECTANGLE_NV, 00608 (GLboolean) (enable->Texture[i] & TEXTURE_RECT_BIT) ); 00609 } 00610 } 00611 00612 if (ctx->Texture.Unit[i].TexGenEnabled != enable->TexGen[i]) { 00613 ctx->Texture.Unit[i].TexGenEnabled = enable->TexGen[i]; 00614 if (ctx->Driver.Enable) { 00615 if (ctx->Driver.ActiveTexture) { 00616 (*ctx->Driver.ActiveTexture)(ctx, i); 00617 } 00618 if (enable->TexGen[i] & S_BIT) 00619 (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_TRUE); 00620 else 00621 (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_FALSE); 00622 if (enable->TexGen[i] & T_BIT) 00623 (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_TRUE); 00624 else 00625 (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_FALSE); 00626 if (enable->TexGen[i] & R_BIT) 00627 (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_TRUE); 00628 else 00629 (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_FALSE); 00630 if (enable->TexGen[i] & Q_BIT) 00631 (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_TRUE); 00632 else 00633 (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_FALSE); 00634 } 00635 } 00636 00637 /* GL_SGI_texture_color_table */ 00638 ctx->Texture.Unit[i].ColorTableEnabled = enable->TextureColorTable[i]; 00639 } 00640 00641 if (ctx->Driver.ActiveTexture) { 00642 (*ctx->Driver.ActiveTexture)(ctx, ctx->Texture.CurrentUnit); 00643 } 00644 } 00645 00646 00650 static void 00651 pop_texture_group(GLcontext *ctx, struct texture_state *texstate) 00652 { 00653 GLuint u; 00654 00655 _mesa_lock_context_textures(ctx); 00656 00657 for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { 00658 const struct gl_texture_unit *unit = &texstate->Texture.Unit[u]; 00659 GLuint tgt; 00660 00661 _mesa_ActiveTextureARB(GL_TEXTURE0_ARB + u); 00662 _mesa_set_enable(ctx, GL_TEXTURE_1D, 00663 (unit->Enabled & TEXTURE_1D_BIT) ? GL_TRUE : GL_FALSE); 00664 _mesa_set_enable(ctx, GL_TEXTURE_2D, 00665 (unit->Enabled & TEXTURE_2D_BIT) ? GL_TRUE : GL_FALSE); 00666 _mesa_set_enable(ctx, GL_TEXTURE_3D, 00667 (unit->Enabled & TEXTURE_3D_BIT) ? GL_TRUE : GL_FALSE); 00668 if (ctx->Extensions.ARB_texture_cube_map) { 00669 _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP_ARB, 00670 (unit->Enabled & TEXTURE_CUBE_BIT) ? GL_TRUE : GL_FALSE); 00671 } 00672 if (ctx->Extensions.NV_texture_rectangle) { 00673 _mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE_NV, 00674 (unit->Enabled & TEXTURE_RECT_BIT) ? GL_TRUE : GL_FALSE); 00675 } 00676 if (ctx->Extensions.SGI_texture_color_table) { 00677 _mesa_set_enable(ctx, GL_TEXTURE_COLOR_TABLE_SGI, 00678 unit->ColorTableEnabled); 00679 } 00680 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, unit->EnvMode); 00681 _mesa_TexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, unit->EnvColor); 00682 _mesa_TexGeni(GL_S, GL_TEXTURE_GEN_MODE, unit->GenModeS); 00683 _mesa_TexGeni(GL_T, GL_TEXTURE_GEN_MODE, unit->GenModeT); 00684 _mesa_TexGeni(GL_R, GL_TEXTURE_GEN_MODE, unit->GenModeR); 00685 _mesa_TexGeni(GL_Q, GL_TEXTURE_GEN_MODE, unit->GenModeQ); 00686 _mesa_TexGenfv(GL_S, GL_OBJECT_PLANE, unit->ObjectPlaneS); 00687 _mesa_TexGenfv(GL_T, GL_OBJECT_PLANE, unit->ObjectPlaneT); 00688 _mesa_TexGenfv(GL_R, GL_OBJECT_PLANE, unit->ObjectPlaneR); 00689 _mesa_TexGenfv(GL_Q, GL_OBJECT_PLANE, unit->ObjectPlaneQ); 00690 /* Eye plane done differently to avoid re-transformation */ 00691 { 00692 struct gl_texture_unit *destUnit = &ctx->Texture.Unit[u]; 00693 COPY_4FV(destUnit->EyePlaneS, unit->EyePlaneS); 00694 COPY_4FV(destUnit->EyePlaneT, unit->EyePlaneT); 00695 COPY_4FV(destUnit->EyePlaneR, unit->EyePlaneR); 00696 COPY_4FV(destUnit->EyePlaneQ, unit->EyePlaneQ); 00697 if (ctx->Driver.TexGen) { 00698 ctx->Driver.TexGen(ctx, GL_S, GL_EYE_PLANE, unit->EyePlaneS); 00699 ctx->Driver.TexGen(ctx, GL_T, GL_EYE_PLANE, unit->EyePlaneT); 00700 ctx->Driver.TexGen(ctx, GL_R, GL_EYE_PLANE, unit->EyePlaneR); 00701 ctx->Driver.TexGen(ctx, GL_Q, GL_EYE_PLANE, unit->EyePlaneQ); 00702 } 00703 } 00704 _mesa_set_enable(ctx, GL_TEXTURE_GEN_S, 00705 ((unit->TexGenEnabled & S_BIT) ? GL_TRUE : GL_FALSE)); 00706 _mesa_set_enable(ctx, GL_TEXTURE_GEN_T, 00707 ((unit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE)); 00708 _mesa_set_enable(ctx, GL_TEXTURE_GEN_R, 00709 ((unit->TexGenEnabled & R_BIT) ? GL_TRUE : GL_FALSE)); 00710 _mesa_set_enable(ctx, GL_TEXTURE_GEN_Q, 00711 ((unit->TexGenEnabled & Q_BIT) ? GL_TRUE : GL_FALSE)); 00712 if (ctx->Extensions.EXT_texture_lod_bias) { 00713 _mesa_TexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, 00714 GL_TEXTURE_LOD_BIAS_EXT, unit->LodBias); 00715 } 00716 if (ctx->Extensions.EXT_texture_env_combine || 00717 ctx->Extensions.ARB_texture_env_combine) { 00718 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB, 00719 unit->Combine.ModeRGB); 00720 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA, 00721 unit->Combine.ModeA); 00722 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB, 00723 unit->Combine.SourceRGB[0]); 00724 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB, 00725 unit->Combine.SourceRGB[1]); 00726 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB, 00727 unit->Combine.SourceRGB[2]); 00728 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA, 00729 unit->Combine.SourceA[0]); 00730 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA, 00731 unit->Combine.SourceA[1]); 00732 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA, 00733 unit->Combine.SourceA[2]); 00734 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB, 00735 unit->Combine.OperandRGB[0]); 00736 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB, 00737 unit->Combine.OperandRGB[1]); 00738 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB, 00739 unit->Combine.OperandRGB[2]); 00740 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA, 00741 unit->Combine.OperandA[0]); 00742 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA, 00743 unit->Combine.OperandA[1]); 00744 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA, 00745 unit->Combine.OperandA[2]); 00746 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE, 00747 1 << unit->Combine.ScaleShiftRGB); 00748 _mesa_TexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE, 00749 1 << unit->Combine.ScaleShiftA); 00750 } 00751 00752 /* Restore texture object state for each target */ 00753 for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) { 00754 const struct gl_texture_object *obj = NULL; 00755 GLfloat bordColor[4]; 00756 GLenum target; 00757 00758 obj = &texstate->SavedObj[u][tgt]; 00759 00760 /* don't restore state for unsupported targets to prevent 00761 * raising GL errors. 00762 */ 00763 if (obj->Target == GL_TEXTURE_CUBE_MAP_ARB && 00764 !ctx->Extensions.ARB_texture_cube_map) { 00765 continue; 00766 } 00767 else if (obj->Target == GL_TEXTURE_RECTANGLE_NV && 00768 !ctx->Extensions.NV_texture_rectangle) { 00769 continue; 00770 } 00771 else if ((obj->Target == GL_TEXTURE_1D_ARRAY_EXT || 00772 obj->Target == GL_TEXTURE_2D_ARRAY_EXT) && 00773 !ctx->Extensions.MESA_texture_array) { 00774 continue; 00775 } 00776 00777 target = obj->Target; 00778 00779 _mesa_BindTexture(target, obj->Name); 00780 00781 bordColor[0] = CHAN_TO_FLOAT(obj->BorderColor[0]); 00782 bordColor[1] = CHAN_TO_FLOAT(obj->BorderColor[1]); 00783 bordColor[2] = CHAN_TO_FLOAT(obj->BorderColor[2]); 00784 bordColor[3] = CHAN_TO_FLOAT(obj->BorderColor[3]); 00785 00786 _mesa_TexParameterfv(target, GL_TEXTURE_BORDER_COLOR, bordColor); 00787 _mesa_TexParameterf(target, GL_TEXTURE_PRIORITY, obj->Priority); 00788 _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, obj->WrapS); 00789 _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, obj->WrapT); 00790 _mesa_TexParameteri(target, GL_TEXTURE_WRAP_R, obj->WrapR); 00791 _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, obj->MinFilter); 00792 _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, obj->MagFilter); 00793 _mesa_TexParameterf(target, GL_TEXTURE_MIN_LOD, obj->MinLod); 00794 _mesa_TexParameterf(target, GL_TEXTURE_MAX_LOD, obj->MaxLod); 00795 _mesa_TexParameterf(target, GL_TEXTURE_LOD_BIAS, obj->LodBias); 00796 _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, obj->BaseLevel); 00797 if (target != GL_TEXTURE_RECTANGLE_ARB) 00798 _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, obj->MaxLevel); 00799 if (ctx->Extensions.EXT_texture_filter_anisotropic) { 00800 _mesa_TexParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT, 00801 obj->MaxAnisotropy); 00802 } 00803 if (ctx->Extensions.SGIX_shadow) { 00804 _mesa_TexParameteri(target, GL_TEXTURE_COMPARE_SGIX, 00805 obj->CompareFlag); 00806 _mesa_TexParameteri(target, GL_TEXTURE_COMPARE_OPERATOR_SGIX, 00807 obj->CompareOperator); 00808 } 00809 if (ctx->Extensions.SGIX_shadow_ambient) { 00810 _mesa_TexParameterf(target, GL_SHADOW_AMBIENT_SGIX, 00811 obj->ShadowAmbient); 00812 } 00813 } 00814 00815 /* remove saved references to the texture objects */ 00816 for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) { 00817 _mesa_reference_texobj(&texstate->SavedTexRef[u][tgt], NULL); 00818 } 00819 } 00820 00821 _mesa_ActiveTextureARB(GL_TEXTURE0_ARB + texstate->Texture.CurrentUnit); 00822 00823 _mesa_unlock_context_textures(ctx); 00824 } 00825 00826 00827 /* 00828 * This function is kind of long just because we have to call a lot 00829 * of device driver functions to update device driver state. 00830 * 00831 * XXX As it is now, most of the pop-code calls immediate-mode Mesa functions 00832 * in order to restore GL state. This isn't terribly efficient but it 00833 * ensures that dirty flags and any derived state gets updated correctly. 00834 * We could at least check if the value to restore equals the current value 00835 * and then skip the Mesa call. 00836 */ 00837 void GLAPIENTRY 00838 _mesa_PopAttrib(void) 00839 { 00840 struct gl_attrib_node *attr, *next; 00841 GET_CURRENT_CONTEXT(ctx); 00842 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 00843 00844 if (ctx->AttribStackDepth == 0) { 00845 _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopAttrib" ); 00846 return; 00847 } 00848 00849 ctx->AttribStackDepth--; 00850 attr = ctx->AttribStack[ctx->AttribStackDepth]; 00851 00852 while (attr) { 00853 00854 if (MESA_VERBOSE & VERBOSE_API) { 00855 _mesa_debug(ctx, "glPopAttrib %s\n", 00856 _mesa_lookup_enum_by_nr(attr->kind)); 00857 } 00858 00859 switch (attr->kind) { 00860 case GL_ACCUM_BUFFER_BIT: 00861 { 00862 const struct gl_accum_attrib *accum; 00863 accum = (const struct gl_accum_attrib *) attr->data; 00864 _mesa_ClearAccum(accum->ClearColor[0], 00865 accum->ClearColor[1], 00866 accum->ClearColor[2], 00867 accum->ClearColor[3]); 00868 } 00869 break; 00870 case GL_COLOR_BUFFER_BIT: 00871 { 00872 const struct gl_colorbuffer_attrib *color; 00873 color = (const struct gl_colorbuffer_attrib *) attr->data; 00874 _mesa_ClearIndex((GLfloat) color->ClearIndex); 00875 _mesa_ClearColor(color->ClearColor[0], 00876 color->ClearColor[1], 00877 color->ClearColor[2], 00878 color->ClearColor[3]); 00879 _mesa_IndexMask(color->IndexMask); 00880 _mesa_ColorMask((GLboolean) (color->ColorMask[0] != 0), 00881 (GLboolean) (color->ColorMask[1] != 0), 00882 (GLboolean) (color->ColorMask[2] != 0), 00883 (GLboolean) (color->ColorMask[3] != 0)); 00884 { 00885 /* Need to determine if more than one color output is 00886 * specified. If so, call glDrawBuffersARB, else call 00887 * glDrawBuffer(). This is a subtle, but essential point 00888 * since GL_FRONT (for example) is illegal for the former 00889 * function, but legal for the later. 00890 */ 00891 GLboolean multipleBuffers = GL_FALSE; 00892 if (ctx->Extensions.ARB_draw_buffers) { 00893 GLuint i; 00894 for (i = 1; i < ctx->Const.MaxDrawBuffers; i++) { 00895 if (color->DrawBuffer[i] != GL_NONE) { 00896 multipleBuffers = GL_TRUE; 00897 break; 00898 } 00899 } 00900 } 00901 /* Call the API_level functions, not _mesa_drawbuffers() 00902 * since we need to do error checking on the pop'd 00903 * GL_DRAW_BUFFER. 00904 * Ex: if GL_FRONT were pushed, but we're popping with a 00905 * user FBO bound, GL_FRONT will be illegal and we'll need 00906 * to record that error. Per OpenGL ARB decision. 00907 */ 00908 if (multipleBuffers) 00909 _mesa_DrawBuffersARB(ctx->Const.MaxDrawBuffers, 00910 color->DrawBuffer); 00911 else 00912 _mesa_DrawBuffer(color->DrawBuffer[0]); 00913 } 00914 _mesa_set_enable(ctx, GL_ALPHA_TEST, color->AlphaEnabled); 00915 _mesa_AlphaFunc(color->AlphaFunc, color->AlphaRef); 00916 _mesa_set_enable(ctx, GL_BLEND, color->BlendEnabled); 00917 _mesa_BlendFuncSeparateEXT(color->BlendSrcRGB, 00918 color->BlendDstRGB, 00919 color->BlendSrcA, 00920 color->BlendDstA); 00921 /* This special case is because glBlendEquationSeparateEXT 00922 * cannot take GL_LOGIC_OP as a parameter. 00923 */ 00924 if ( color->BlendEquationRGB == color->BlendEquationA ) { 00925 _mesa_BlendEquation(color->BlendEquationRGB); 00926 } 00927 else { 00928 _mesa_BlendEquationSeparateEXT(color->BlendEquationRGB, 00929 color->BlendEquationA); 00930 } 00931 _mesa_BlendColor(color->BlendColor[0], 00932 color->BlendColor[1], 00933 color->BlendColor[2], 00934 color->BlendColor[3]); 00935 _mesa_LogicOp(color->LogicOp); 00936 _mesa_set_enable(ctx, GL_COLOR_LOGIC_OP, 00937 color->ColorLogicOpEnabled); 00938 _mesa_set_enable(ctx, GL_INDEX_LOGIC_OP, 00939 color->IndexLogicOpEnabled); 00940 _mesa_set_enable(ctx, GL_DITHER, color->DitherFlag); 00941 } 00942 break; 00943 case GL_CURRENT_BIT: 00944 FLUSH_CURRENT( ctx, 0 ); 00945 MEMCPY( &ctx->Current, attr->data, 00946 sizeof(struct gl_current_attrib) ); 00947 break; 00948 case GL_DEPTH_BUFFER_BIT: 00949 { 00950 const struct gl_depthbuffer_attrib *depth; 00951 depth = (const struct gl_depthbuffer_attrib *) attr->data; 00952 _mesa_DepthFunc(depth->Func); 00953 _mesa_ClearDepth(depth->Clear); 00954 _mesa_set_enable(ctx, GL_DEPTH_TEST, depth->Test); 00955 _mesa_DepthMask(depth->Mask); 00956 } 00957 break; 00958 case GL_ENABLE_BIT: 00959 { 00960 const struct gl_enable_attrib *enable; 00961 enable = (const struct gl_enable_attrib *) attr->data; 00962 pop_enable_group(ctx, enable); 00963 ctx->NewState |= _NEW_ALL; 00964 } 00965 break; 00966 case GL_EVAL_BIT: 00967 MEMCPY( &ctx->Eval, attr->data, sizeof(struct gl_eval_attrib) ); 00968 ctx->NewState |= _NEW_EVAL; 00969 break; 00970 case GL_FOG_BIT: 00971 { 00972 const struct gl_fog_attrib *fog; 00973 fog = (const struct gl_fog_attrib *) attr->data; 00974 _mesa_set_enable(ctx, GL_FOG, fog->Enabled); 00975 _mesa_Fogfv(GL_FOG_COLOR, fog->Color); 00976 _mesa_Fogf(GL_FOG_DENSITY, fog->Density); 00977 _mesa_Fogf(GL_FOG_START, fog->Start); 00978 _mesa_Fogf(GL_FOG_END, fog->End); 00979 _mesa_Fogf(GL_FOG_INDEX, fog->Index); 00980 _mesa_Fogi(GL_FOG_MODE, fog->Mode); 00981 } 00982 break; 00983 case GL_HINT_BIT: 00984 { 00985 const struct gl_hint_attrib *hint; 00986 hint = (const struct gl_hint_attrib *) attr->data; 00987 _mesa_Hint(GL_PERSPECTIVE_CORRECTION_HINT, 00988 hint->PerspectiveCorrection ); 00989 _mesa_Hint(GL_POINT_SMOOTH_HINT, hint->PointSmooth); 00990 _mesa_Hint(GL_LINE_SMOOTH_HINT, hint->LineSmooth); 00991 _mesa_Hint(GL_POLYGON_SMOOTH_HINT, hint->PolygonSmooth); 00992 _mesa_Hint(GL_FOG_HINT, hint->Fog); 00993 _mesa_Hint(GL_CLIP_VOLUME_CLIPPING_HINT_EXT, 00994 hint->ClipVolumeClipping); 00995 if (ctx->Extensions.ARB_texture_compression) 00996 _mesa_Hint(GL_TEXTURE_COMPRESSION_HINT_ARB, 00997 hint->TextureCompression); 00998 } 00999 break; 01000 case GL_LIGHTING_BIT: 01001 { 01002 GLuint i; 01003 const struct gl_light_attrib *light; 01004 light = (const struct gl_light_attrib *) attr->data; 01005 /* lighting enable */ 01006 _mesa_set_enable(ctx, GL_LIGHTING, light->Enabled); 01007 /* per-light state */ 01008 if (_math_matrix_is_dirty(ctx->ModelviewMatrixStack.Top)) 01009 _math_matrix_analyse( ctx->ModelviewMatrixStack.Top ); 01010 01011 for (i = 0; i < ctx->Const.MaxLights; i++) { 01012 const struct gl_light *l = &light->Light[i]; 01013 _mesa_set_enable(ctx, GL_LIGHT0 + i, l->Enabled); 01014 _mesa_light(ctx, i, GL_AMBIENT, l->Ambient); 01015 _mesa_light(ctx, i, GL_DIFFUSE, l->Diffuse); 01016 _mesa_light(ctx, i, GL_SPECULAR, l->Specular ); 01017 _mesa_light(ctx, i, GL_POSITION, l->EyePosition); 01018 _mesa_light(ctx, i, GL_SPOT_DIRECTION, l->EyeDirection); 01019 _mesa_light(ctx, i, GL_SPOT_EXPONENT, &l->SpotExponent); 01020 _mesa_light(ctx, i, GL_SPOT_CUTOFF, &l->SpotCutoff); 01021 _mesa_light(ctx, i, GL_CONSTANT_ATTENUATION, 01022 &l->ConstantAttenuation); 01023 _mesa_light(ctx, i, GL_LINEAR_ATTENUATION, 01024 &l->LinearAttenuation); 01025 _mesa_light(ctx, i, GL_QUADRATIC_ATTENUATION, 01026 &l->QuadraticAttenuation); 01027 } 01028 /* light model */ 01029 _mesa_LightModelfv(GL_LIGHT_MODEL_AMBIENT, 01030 light->Model.Ambient); 01031 _mesa_LightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER, 01032 (GLfloat) light->Model.LocalViewer); 01033 _mesa_LightModelf(GL_LIGHT_MODEL_TWO_SIDE, 01034 (GLfloat) light->Model.TwoSide); 01035 _mesa_LightModelf(GL_LIGHT_MODEL_COLOR_CONTROL, 01036 (GLfloat) light->Model.ColorControl); 01037 /* shade model */ 01038 _mesa_ShadeModel(light->ShadeModel); 01039 /* color material */ 01040 _mesa_ColorMaterial(light->ColorMaterialFace, 01041 light->ColorMaterialMode); 01042 _mesa_set_enable(ctx, GL_COLOR_MATERIAL, 01043 light->ColorMaterialEnabled); 01044 /* materials */ 01045 MEMCPY(&ctx->Light.Material, &light->Material, 01046 sizeof(struct gl_material)); 01047 } 01048 break; 01049 case GL_LINE_BIT: 01050 { 01051 const struct gl_line_attrib *line; 01052 line = (const struct gl_line_attrib *) attr->data; 01053 _mesa_set_enable(ctx, GL_LINE_SMOOTH, line->SmoothFlag); 01054 _mesa_set_enable(ctx, GL_LINE_STIPPLE, line->StippleFlag); 01055 _mesa_LineStipple(line->StippleFactor, line->StipplePattern); 01056 _mesa_LineWidth(line->Width); 01057 } 01058 break; 01059 case GL_LIST_BIT: 01060 MEMCPY( &ctx->List, attr->data, sizeof(struct gl_list_attrib) ); 01061 break; 01062 case GL_PIXEL_MODE_BIT: 01063 MEMCPY( &ctx->Pixel, attr->data, sizeof(struct gl_pixel_attrib) ); 01064 /* XXX what other pixel state needs to be set by function calls? */ 01065 _mesa_ReadBuffer(ctx->Pixel.ReadBuffer); 01066 ctx->NewState |= _NEW_PIXEL; 01067 break; 01068 case GL_POINT_BIT: 01069 { 01070 const struct gl_point_attrib *point; 01071 point = (const struct gl_point_attrib *) attr->data; 01072 _mesa_PointSize(point->Size); 01073 _mesa_set_enable(ctx, GL_POINT_SMOOTH, point->SmoothFlag); 01074 if (ctx->Extensions.EXT_point_parameters) { 01075 _mesa_PointParameterfv(GL_DISTANCE_ATTENUATION_EXT, 01076 point->Params); 01077 _mesa_PointParameterf(GL_POINT_SIZE_MIN_EXT, 01078 point->MinSize); 01079 _mesa_PointParameterf(GL_POINT_SIZE_MAX_EXT, 01080 point->MaxSize); 01081 _mesa_PointParameterf(GL_POINT_FADE_THRESHOLD_SIZE_EXT, 01082 point->Threshold); 01083 } 01084 if (ctx->Extensions.NV_point_sprite 01085 || ctx->Extensions.ARB_point_sprite) { 01086 GLuint u; 01087 for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { 01088 _mesa_TexEnvi(GL_POINT_SPRITE_NV, GL_COORD_REPLACE_NV, 01089 (GLint) point->CoordReplace[u]); 01090 } 01091 _mesa_set_enable(ctx, GL_POINT_SPRITE_NV,point->PointSprite); 01092 if (ctx->Extensions.NV_point_sprite) 01093 _mesa_PointParameteri(GL_POINT_SPRITE_R_MODE_NV, 01094 ctx->Point.SpriteRMode); 01095 _mesa_PointParameterf(GL_POINT_SPRITE_COORD_ORIGIN, 01096 (GLfloat)ctx->Point.SpriteOrigin); 01097 } 01098 } 01099 break; 01100 case GL_POLYGON_BIT: 01101 { 01102 const struct gl_polygon_attrib *polygon; 01103 polygon = (const struct gl_polygon_attrib *) attr->data; 01104 _mesa_CullFace(polygon->CullFaceMode); 01105 _mesa_FrontFace(polygon->FrontFace); 01106 _mesa_PolygonMode(GL_FRONT, polygon->FrontMode); 01107 _mesa_PolygonMode(GL_BACK, polygon->BackMode); 01108 _mesa_PolygonOffset(polygon->OffsetFactor, 01109 polygon->OffsetUnits); 01110 _mesa_set_enable(ctx, GL_POLYGON_SMOOTH, polygon->SmoothFlag); 01111 _mesa_set_enable(ctx, GL_POLYGON_STIPPLE, polygon->StippleFlag); 01112 _mesa_set_enable(ctx, GL_CULL_FACE, polygon->CullFlag); 01113 _mesa_set_enable(ctx, GL_POLYGON_OFFSET_POINT, 01114 polygon->OffsetPoint); 01115 _mesa_set_enable(ctx, GL_POLYGON_OFFSET_LINE, 01116 polygon->OffsetLine); 01117 _mesa_set_enable(ctx, GL_POLYGON_OFFSET_FILL, 01118 polygon->OffsetFill); 01119 } 01120 break; 01121 case GL_POLYGON_STIPPLE_BIT: 01122 MEMCPY( ctx->PolygonStipple, attr->data, 32*sizeof(GLuint) ); 01123 ctx->NewState |= _NEW_POLYGONSTIPPLE; 01124 if (ctx->Driver.PolygonStipple) 01125 ctx->Driver.PolygonStipple( ctx, (const GLubyte *) attr->data ); 01126 break; 01127 case GL_SCISSOR_BIT: 01128 { 01129 const struct gl_scissor_attrib *scissor; 01130 scissor = (const struct gl_scissor_attrib *) attr->data; 01131 _mesa_Scissor(scissor->X, scissor->Y, 01132 scissor->Width, scissor->Height); 01133 _mesa_set_enable(ctx, GL_SCISSOR_TEST, scissor->Enabled); 01134 } 01135 break; 01136 case GL_STENCIL_BUFFER_BIT: 01137 { 01138 const struct gl_stencil_attrib *stencil; 01139 stencil = (const struct gl_stencil_attrib *) attr->data; 01140 _mesa_set_enable(ctx, GL_STENCIL_TEST, stencil->Enabled); 01141 _mesa_ClearStencil(stencil->Clear); 01142 if (ctx->Extensions.EXT_stencil_two_side) { 01143 _mesa_set_enable(ctx, GL_STENCIL_TEST_TWO_SIDE_EXT, 01144 stencil->TestTwoSide); 01145 _mesa_ActiveStencilFaceEXT(stencil->ActiveFace 01146 ? GL_BACK : GL_FRONT); 01147 } 01148 /* front state */ 01149 _mesa_StencilFuncSeparate(GL_FRONT, 01150 stencil->Function[0], 01151 stencil->Ref[0], 01152 stencil->ValueMask[0]); 01153 _mesa_StencilMaskSeparate(GL_FRONT, stencil->WriteMask[0]); 01154 _mesa_StencilOpSeparate(GL_FRONT, stencil->FailFunc[0], 01155 stencil->ZFailFunc[0], 01156 stencil->ZPassFunc[0]); 01157 /* back state */ 01158 _mesa_StencilFuncSeparate(GL_BACK, 01159 stencil->Function[1], 01160 stencil->Ref[1], 01161 stencil->ValueMask[1]); 01162 _mesa_StencilMaskSeparate(GL_BACK, stencil->WriteMask[1]); 01163 _mesa_StencilOpSeparate(GL_BACK, stencil->FailFunc[1], 01164 stencil->ZFailFunc[1], 01165 stencil->ZPassFunc[1]); 01166 } 01167 break; 01168 case GL_TRANSFORM_BIT: 01169 { 01170 GLuint i; 01171 const struct gl_transform_attrib *xform; 01172 xform = (const struct gl_transform_attrib *) attr->data; 01173 _mesa_MatrixMode(xform->MatrixMode); 01174 if (_math_matrix_is_dirty(ctx->ProjectionMatrixStack.Top)) 01175 _math_matrix_analyse( ctx->ProjectionMatrixStack.Top ); 01176 01177 /* restore clip planes */ 01178 for (i = 0; i < MAX_CLIP_PLANES; i++) { 01179 const GLuint mask = 1 << 1; 01180 const GLfloat *eyePlane = xform->EyeUserPlane[i]; 01181 COPY_4V(ctx->Transform.EyeUserPlane[i], eyePlane); 01182 if (xform->ClipPlanesEnabled & mask) { 01183 _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_TRUE); 01184 } 01185 else { 01186 _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_FALSE); 01187 } 01188 if (ctx->Driver.ClipPlane) 01189 ctx->Driver.ClipPlane( ctx, GL_CLIP_PLANE0 + i, eyePlane ); 01190 } 01191 01192 /* normalize/rescale */ 01193 if (xform->Normalize != ctx->Transform.Normalize) 01194 _mesa_set_enable(ctx, GL_NORMALIZE,ctx->Transform.Normalize); 01195 if (xform->RescaleNormals != ctx->Transform.RescaleNormals) 01196 _mesa_set_enable(ctx, GL_RESCALE_NORMAL_EXT, 01197 ctx->Transform.RescaleNormals); 01198 } 01199 break; 01200 case GL_TEXTURE_BIT: 01201 /* Take care of texture object reference counters */ 01202 { 01203 struct texture_state *texstate 01204 = (struct texture_state *) attr->data; 01205 pop_texture_group(ctx, texstate); 01206 ctx->NewState |= _NEW_TEXTURE; 01207 } 01208 break; 01209 case GL_VIEWPORT_BIT: 01210 { 01211 const struct gl_viewport_attrib *vp; 01212 vp = (const struct gl_viewport_attrib *) attr->data; 01213 _mesa_Viewport(vp->X, vp->Y, vp->Width, vp->Height); 01214 _mesa_DepthRange(vp->Near, vp->Far); 01215 } 01216 break; 01217 case GL_MULTISAMPLE_BIT_ARB: 01218 { 01219 const struct gl_multisample_attrib *ms; 01220 ms = (const struct gl_multisample_attrib *) attr->data; 01221 _mesa_SampleCoverageARB(ms->SampleCoverageValue, 01222 ms->SampleCoverageInvert); 01223 } 01224 break; 01225 01226 default: 01227 _mesa_problem( ctx, "Bad attrib flag in PopAttrib"); 01228 break; 01229 } 01230 01231 next = attr->next; 01232 FREE( attr->data ); 01233 FREE( attr ); 01234 attr = next; 01235 } 01236 } 01237 01238 01243 static void 01244 adjust_buffer_object_ref_counts(struct gl_array_attrib *array, GLint step) 01245 { 01246 GLuint i; 01247 array->ArrayObj->Vertex.BufferObj->RefCount += step; 01248 array->ArrayObj->Normal.BufferObj->RefCount += step; 01249 array->ArrayObj->Color.BufferObj->RefCount += step; 01250 array->ArrayObj->SecondaryColor.BufferObj->RefCount += step; 01251 array->ArrayObj->FogCoord.BufferObj->RefCount += step; 01252 array->ArrayObj->Index.BufferObj->RefCount += step; 01253 array->ArrayObj->EdgeFlag.BufferObj->RefCount += step; 01254 for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) 01255 array->ArrayObj->TexCoord[i].BufferObj->RefCount += step; 01256 for (i = 0; i < VERT_ATTRIB_MAX; i++) 01257 array->ArrayObj->VertexAttrib[i].BufferObj->RefCount += step; 01258 } 01259 01260 01265 static void 01266 copy_pixelstore(GLcontext *ctx, 01267 struct gl_pixelstore_attrib *dst, 01268 const struct gl_pixelstore_attrib *src) 01269 { 01270 dst->Alignment = src->Alignment; 01271 dst->RowLength = src->RowLength; 01272 dst->SkipPixels = src->SkipPixels; 01273 dst->SkipRows = src->SkipRows; 01274 dst->ImageHeight = src->ImageHeight; 01275 dst->SkipImages = src->SkipImages; 01276 dst->SwapBytes = src->SwapBytes; 01277 dst->LsbFirst = src->LsbFirst; 01278 dst->ClientStorage = src->ClientStorage; 01279 dst->Invert = src->Invert; 01280 _mesa_reference_buffer_object(ctx, &dst->BufferObj, src->BufferObj); 01281 } 01282 01283 01284 #define GL_CLIENT_PACK_BIT (1<<20) 01285 #define GL_CLIENT_UNPACK_BIT (1<<21) 01286 01287 01288 void GLAPIENTRY 01289 _mesa_PushClientAttrib(GLbitfield mask) 01290 { 01291 struct gl_attrib_node *newnode; 01292 struct gl_attrib_node *head; 01293 01294 GET_CURRENT_CONTEXT(ctx); 01295 ASSERT_OUTSIDE_BEGIN_END(ctx); 01296 01297 if (ctx->ClientAttribStackDepth >= MAX_CLIENT_ATTRIB_STACK_DEPTH) { 01298 _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushClientAttrib" ); 01299 return; 01300 } 01301 01302 /* Build linked list of attribute nodes which save all attribute 01303 * groups specified by the mask. 01304 */ 01305 head = NULL; 01306 01307 if (mask & GL_CLIENT_PIXEL_STORE_BIT) { 01308 struct gl_pixelstore_attrib *attr; 01309 /* packing attribs */ 01310 attr = CALLOC_STRUCT( gl_pixelstore_attrib ); 01311 copy_pixelstore(ctx, attr, &ctx->Pack); 01312 newnode = new_attrib_node( GL_CLIENT_PACK_BIT ); 01313 newnode->data = attr; 01314 newnode->next = head; 01315 head = newnode; 01316 /* unpacking attribs */ 01317 attr = CALLOC_STRUCT( gl_pixelstore_attrib ); 01318 copy_pixelstore(ctx, attr, &ctx->Unpack); 01319 newnode = new_attrib_node( GL_CLIENT_UNPACK_BIT ); 01320 newnode->data = attr; 01321 newnode->next = head; 01322 head = newnode; 01323 } 01324 01325 if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) { 01326 struct gl_array_attrib *attr; 01327 struct gl_array_object *obj; 01328 01329 attr = MALLOC_STRUCT( gl_array_attrib ); 01330 obj = MALLOC_STRUCT( gl_array_object ); 01331 01332 #if FEATURE_ARB_vertex_buffer_object 01333 /* increment ref counts since we're copying pointers to these objects */ 01334 ctx->Array.ArrayBufferObj->RefCount++; 01335 ctx->Array.ElementArrayBufferObj->RefCount++; 01336 #endif 01337 01338 MEMCPY( attr, &ctx->Array, sizeof(struct gl_array_attrib) ); 01339 MEMCPY( obj, ctx->Array.ArrayObj, sizeof(struct gl_array_object) ); 01340 01341 attr->ArrayObj = obj; 01342 01343 newnode = new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT ); 01344 newnode->data = attr; 01345 newnode->next = head; 01346 head = newnode; 01347 /* bump reference counts on buffer objects */ 01348 adjust_buffer_object_ref_counts(&ctx->Array, 1); 01349 } 01350 01351 ctx->ClientAttribStack[ctx->ClientAttribStackDepth] = head; 01352 ctx->ClientAttribStackDepth++; 01353 } 01354 01355 01356 01357 01358 void GLAPIENTRY 01359 _mesa_PopClientAttrib(void) 01360 { 01361 struct gl_attrib_node *node, *next; 01362 01363 GET_CURRENT_CONTEXT(ctx); 01364 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 01365 01366 if (ctx->ClientAttribStackDepth == 0) { 01367 _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopClientAttrib" ); 01368 return; 01369 } 01370 01371 ctx->ClientAttribStackDepth--; 01372 node = ctx->ClientAttribStack[ctx->ClientAttribStackDepth]; 01373 01374 while (node) { 01375 switch (node->kind) { 01376 case GL_CLIENT_PACK_BIT: 01377 { 01378 struct gl_pixelstore_attrib *store = 01379 (struct gl_pixelstore_attrib *) node->data; 01380 copy_pixelstore(ctx, &ctx->Pack, store); 01381 _mesa_reference_buffer_object(ctx, &store->BufferObj, NULL); 01382 } 01383 ctx->NewState |= _NEW_PACKUNPACK; 01384 break; 01385 case GL_CLIENT_UNPACK_BIT: 01386 { 01387 struct gl_pixelstore_attrib *store = 01388 (struct gl_pixelstore_attrib *) node->data; 01389 copy_pixelstore(ctx, &ctx->Unpack, store); 01390 _mesa_reference_buffer_object(ctx, &store->BufferObj, NULL); 01391 } 01392 ctx->NewState |= _NEW_PACKUNPACK; 01393 break; 01394 case GL_CLIENT_VERTEX_ARRAY_BIT: { 01395 struct gl_array_attrib * data = 01396 (struct gl_array_attrib *) node->data; 01397 01398 adjust_buffer_object_ref_counts(&ctx->Array, -1); 01399 01400 ctx->Array.ActiveTexture = data->ActiveTexture; 01401 if (data->LockCount != 0) 01402 _mesa_LockArraysEXT(data->LockFirst, data->LockCount); 01403 else if (ctx->Array.LockCount) 01404 _mesa_UnlockArraysEXT(); 01405 01406 _mesa_BindVertexArrayAPPLE( data->ArrayObj->Name ); 01407 01408 #if FEATURE_ARB_vertex_buffer_object 01409 _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, 01410 data->ArrayBufferObj->Name); 01411 _mesa_BindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 01412 data->ElementArrayBufferObj->Name); 01413 #endif 01414 01415 MEMCPY( ctx->Array.ArrayObj, data->ArrayObj, 01416 sizeof( struct gl_array_object ) ); 01417 01418 FREE( data->ArrayObj ); 01419 01420 /* FIXME: Should some bits in ctx->Array->NewState also be set 01421 * FIXME: here? It seems like it should be set to inclusive-or 01422 * FIXME: of the old ArrayObj->_Enabled and the new _Enabled. 01423 */ 01424 01425 ctx->NewState |= _NEW_ARRAY; 01426 break; 01427 } 01428 default: 01429 _mesa_problem( ctx, "Bad attrib flag in PopClientAttrib"); 01430 break; 01431 } 01432 01433 next = node->next; 01434 FREE( node->data ); 01435 FREE( node ); 01436 node = next; 01437 } 01438 } 01439 01440 01444 void 01445 _mesa_free_attrib_data(GLcontext *ctx) 01446 { 01447 while (ctx->AttribStackDepth > 0) { 01448 struct gl_attrib_node *attr, *next; 01449 01450 ctx->AttribStackDepth--; 01451 attr = ctx->AttribStack[ctx->AttribStackDepth]; 01452 01453 while (attr) { 01454 if (attr->kind == GL_TEXTURE_BIT) { 01455 struct texture_state *texstate = (struct texture_state*)attr->data; 01456 GLuint u, tgt; 01457 /* clear references to the saved texture objects */ 01458 for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { 01459 for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) { 01460 _mesa_reference_texobj(&texstate->SavedTexRef[u][tgt], NULL); 01461 } 01462 } 01463 } 01464 else { 01465 /* any other chunks of state that requires special handling? */ 01466 } 01467 01468 next = attr->next; 01469 _mesa_free(attr->data); 01470 _mesa_free(attr); 01471 attr = next; 01472 } 01473 } 01474 } 01475 01476 01477 void _mesa_init_attrib( GLcontext *ctx ) 01478 { 01479 /* Renderer and client attribute stacks */ 01480 ctx->AttribStackDepth = 0; 01481 ctx->ClientAttribStackDepth = 0; 01482 }
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