2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 #include "bufferobj.h"
45 #include "multisample.h"
49 #include "simple_list.h"
56 #include "math/m_xform.h"
59 * Special struct for saving/restoring texture state (GL_TEXTURE_BIT)
63 struct gl_texture_attrib Texture
; /**< The usual context state */
65 /** to save per texture object state (wrap modes, filters, etc): */
66 struct gl_texture_object SavedObj
[MAX_TEXTURE_UNITS
][NUM_TEXTURE_TARGETS
];
69 * To save references to texture objects (so they don't get accidentally
70 * deleted while saved in the attribute stack).
72 struct gl_texture_object
*SavedTexRef
[MAX_TEXTURE_UNITS
][NUM_TEXTURE_TARGETS
];
77 * Allocate a new attribute state node. These nodes have a
78 * "kind" value and a pointer to a struct of state data.
80 static struct gl_attrib_node
*
81 new_attrib_node( GLbitfield kind
)
83 struct gl_attrib_node
*an
= MALLOC_STRUCT(gl_attrib_node
);
92 _mesa_PushAttrib(GLbitfield mask
)
94 struct gl_attrib_node
*newnode
;
95 struct gl_attrib_node
*head
;
97 GET_CURRENT_CONTEXT(ctx
);
98 ASSERT_OUTSIDE_BEGIN_END(ctx
);
100 if (MESA_VERBOSE
& VERBOSE_API
)
101 _mesa_debug(ctx
, "glPushAttrib %x\n", (int) mask
);
103 if (ctx
->AttribStackDepth
>= MAX_ATTRIB_STACK_DEPTH
) {
104 _mesa_error( ctx
, GL_STACK_OVERFLOW
, "glPushAttrib" );
108 /* Build linked list of attribute nodes which save all attribute */
109 /* groups specified by the mask. */
112 if (mask
& GL_ACCUM_BUFFER_BIT
) {
113 struct gl_accum_attrib
*attr
;
114 attr
= MALLOC_STRUCT( gl_accum_attrib
);
115 MEMCPY( attr
, &ctx
->Accum
, sizeof(struct gl_accum_attrib
) );
116 newnode
= new_attrib_node( GL_ACCUM_BUFFER_BIT
);
117 newnode
->data
= attr
;
118 newnode
->next
= head
;
122 if (mask
& GL_COLOR_BUFFER_BIT
) {
124 struct gl_colorbuffer_attrib
*attr
;
125 attr
= MALLOC_STRUCT( gl_colorbuffer_attrib
);
126 MEMCPY( attr
, &ctx
->Color
, sizeof(struct gl_colorbuffer_attrib
) );
127 /* push the Draw FBO's DrawBuffer[] state, not ctx->Color.DrawBuffer[] */
128 for (i
= 0; i
< ctx
->Const
.MaxDrawBuffers
; i
++)
129 attr
->DrawBuffer
[i
] = ctx
->DrawBuffer
->ColorDrawBuffer
[i
];
130 newnode
= new_attrib_node( GL_COLOR_BUFFER_BIT
);
131 newnode
->data
= attr
;
132 newnode
->next
= head
;
136 if (mask
& GL_CURRENT_BIT
) {
137 struct gl_current_attrib
*attr
;
138 FLUSH_CURRENT( ctx
, 0 );
139 attr
= MALLOC_STRUCT( gl_current_attrib
);
140 MEMCPY( attr
, &ctx
->Current
, sizeof(struct gl_current_attrib
) );
141 newnode
= new_attrib_node( GL_CURRENT_BIT
);
142 newnode
->data
= attr
;
143 newnode
->next
= head
;
147 if (mask
& GL_DEPTH_BUFFER_BIT
) {
148 struct gl_depthbuffer_attrib
*attr
;
149 attr
= MALLOC_STRUCT( gl_depthbuffer_attrib
);
150 MEMCPY( attr
, &ctx
->Depth
, sizeof(struct gl_depthbuffer_attrib
) );
151 newnode
= new_attrib_node( GL_DEPTH_BUFFER_BIT
);
152 newnode
->data
= attr
;
153 newnode
->next
= head
;
157 if (mask
& GL_ENABLE_BIT
) {
158 struct gl_enable_attrib
*attr
;
160 attr
= MALLOC_STRUCT( gl_enable_attrib
);
161 /* Copy enable flags from all other attributes into the enable struct. */
162 attr
->AlphaTest
= ctx
->Color
.AlphaEnabled
;
163 attr
->AutoNormal
= ctx
->Eval
.AutoNormal
;
164 attr
->Blend
= ctx
->Color
.BlendEnabled
;
165 attr
->ClipPlanes
= ctx
->Transform
.ClipPlanesEnabled
;
166 attr
->ColorMaterial
= ctx
->Light
.ColorMaterialEnabled
;
167 for (i
= 0; i
< COLORTABLE_MAX
; i
++) {
168 attr
->ColorTable
[i
] = ctx
->Pixel
.ColorTableEnabled
[i
];
170 attr
->Convolution1D
= ctx
->Pixel
.Convolution1DEnabled
;
171 attr
->Convolution2D
= ctx
->Pixel
.Convolution2DEnabled
;
172 attr
->Separable2D
= ctx
->Pixel
.Separable2DEnabled
;
173 attr
->CullFace
= ctx
->Polygon
.CullFlag
;
174 attr
->DepthTest
= ctx
->Depth
.Test
;
175 attr
->Dither
= ctx
->Color
.DitherFlag
;
176 attr
->Fog
= ctx
->Fog
.Enabled
;
177 for (i
= 0; i
< ctx
->Const
.MaxLights
; i
++) {
178 attr
->Light
[i
] = ctx
->Light
.Light
[i
].Enabled
;
180 attr
->Lighting
= ctx
->Light
.Enabled
;
181 attr
->LineSmooth
= ctx
->Line
.SmoothFlag
;
182 attr
->LineStipple
= ctx
->Line
.StippleFlag
;
183 attr
->Histogram
= ctx
->Pixel
.HistogramEnabled
;
184 attr
->MinMax
= ctx
->Pixel
.MinMaxEnabled
;
185 attr
->IndexLogicOp
= ctx
->Color
.IndexLogicOpEnabled
;
186 attr
->ColorLogicOp
= ctx
->Color
.ColorLogicOpEnabled
;
187 attr
->Map1Color4
= ctx
->Eval
.Map1Color4
;
188 attr
->Map1Index
= ctx
->Eval
.Map1Index
;
189 attr
->Map1Normal
= ctx
->Eval
.Map1Normal
;
190 attr
->Map1TextureCoord1
= ctx
->Eval
.Map1TextureCoord1
;
191 attr
->Map1TextureCoord2
= ctx
->Eval
.Map1TextureCoord2
;
192 attr
->Map1TextureCoord3
= ctx
->Eval
.Map1TextureCoord3
;
193 attr
->Map1TextureCoord4
= ctx
->Eval
.Map1TextureCoord4
;
194 attr
->Map1Vertex3
= ctx
->Eval
.Map1Vertex3
;
195 attr
->Map1Vertex4
= ctx
->Eval
.Map1Vertex4
;
196 MEMCPY(attr
->Map1Attrib
, ctx
->Eval
.Map1Attrib
, sizeof(ctx
->Eval
.Map1Attrib
));
197 attr
->Map2Color4
= ctx
->Eval
.Map2Color4
;
198 attr
->Map2Index
= ctx
->Eval
.Map2Index
;
199 attr
->Map2Normal
= ctx
->Eval
.Map2Normal
;
200 attr
->Map2TextureCoord1
= ctx
->Eval
.Map2TextureCoord1
;
201 attr
->Map2TextureCoord2
= ctx
->Eval
.Map2TextureCoord2
;
202 attr
->Map2TextureCoord3
= ctx
->Eval
.Map2TextureCoord3
;
203 attr
->Map2TextureCoord4
= ctx
->Eval
.Map2TextureCoord4
;
204 attr
->Map2Vertex3
= ctx
->Eval
.Map2Vertex3
;
205 attr
->Map2Vertex4
= ctx
->Eval
.Map2Vertex4
;
206 MEMCPY(attr
->Map2Attrib
, ctx
->Eval
.Map2Attrib
, sizeof(ctx
->Eval
.Map2Attrib
));
207 attr
->Normalize
= ctx
->Transform
.Normalize
;
208 attr
->RasterPositionUnclipped
= ctx
->Transform
.RasterPositionUnclipped
;
209 attr
->PointSmooth
= ctx
->Point
.SmoothFlag
;
210 attr
->PointSprite
= ctx
->Point
.PointSprite
;
211 attr
->PolygonOffsetPoint
= ctx
->Polygon
.OffsetPoint
;
212 attr
->PolygonOffsetLine
= ctx
->Polygon
.OffsetLine
;
213 attr
->PolygonOffsetFill
= ctx
->Polygon
.OffsetFill
;
214 attr
->PolygonSmooth
= ctx
->Polygon
.SmoothFlag
;
215 attr
->PolygonStipple
= ctx
->Polygon
.StippleFlag
;
216 attr
->RescaleNormals
= ctx
->Transform
.RescaleNormals
;
217 attr
->Scissor
= ctx
->Scissor
.Enabled
;
218 attr
->Stencil
= ctx
->Stencil
.Enabled
;
219 attr
->StencilTwoSide
= ctx
->Stencil
.TestTwoSide
;
220 attr
->MultisampleEnabled
= ctx
->Multisample
.Enabled
;
221 attr
->SampleAlphaToCoverage
= ctx
->Multisample
.SampleAlphaToCoverage
;
222 attr
->SampleAlphaToOne
= ctx
->Multisample
.SampleAlphaToOne
;
223 attr
->SampleCoverage
= ctx
->Multisample
.SampleCoverage
;
224 attr
->SampleCoverageInvert
= ctx
->Multisample
.SampleCoverageInvert
;
225 for (i
=0; i
<MAX_TEXTURE_UNITS
; i
++) {
226 attr
->Texture
[i
] = ctx
->Texture
.Unit
[i
].Enabled
;
227 attr
->TexGen
[i
] = ctx
->Texture
.Unit
[i
].TexGenEnabled
;
228 attr
->TextureColorTable
[i
] = ctx
->Texture
.Unit
[i
].ColorTableEnabled
;
230 /* GL_NV_vertex_program */
231 attr
->VertexProgram
= ctx
->VertexProgram
.Enabled
;
232 attr
->VertexProgramPointSize
= ctx
->VertexProgram
.PointSizeEnabled
;
233 attr
->VertexProgramTwoSide
= ctx
->VertexProgram
.TwoSideEnabled
;
234 newnode
= new_attrib_node( GL_ENABLE_BIT
);
235 newnode
->data
= attr
;
236 newnode
->next
= head
;
240 if (mask
& GL_EVAL_BIT
) {
241 struct gl_eval_attrib
*attr
;
242 attr
= MALLOC_STRUCT( gl_eval_attrib
);
243 MEMCPY( attr
, &ctx
->Eval
, sizeof(struct gl_eval_attrib
) );
244 newnode
= new_attrib_node( GL_EVAL_BIT
);
245 newnode
->data
= attr
;
246 newnode
->next
= head
;
250 if (mask
& GL_FOG_BIT
) {
251 struct gl_fog_attrib
*attr
;
252 attr
= MALLOC_STRUCT( gl_fog_attrib
);
253 MEMCPY( attr
, &ctx
->Fog
, sizeof(struct gl_fog_attrib
) );
254 newnode
= new_attrib_node( GL_FOG_BIT
);
255 newnode
->data
= attr
;
256 newnode
->next
= head
;
260 if (mask
& GL_HINT_BIT
) {
261 struct gl_hint_attrib
*attr
;
262 attr
= MALLOC_STRUCT( gl_hint_attrib
);
263 MEMCPY( attr
, &ctx
->Hint
, sizeof(struct gl_hint_attrib
) );
264 newnode
= new_attrib_node( GL_HINT_BIT
);
265 newnode
->data
= attr
;
266 newnode
->next
= head
;
270 if (mask
& GL_LIGHTING_BIT
) {
271 struct gl_light_attrib
*attr
;
272 FLUSH_CURRENT(ctx
, 0); /* flush material changes */
273 attr
= MALLOC_STRUCT( gl_light_attrib
);
274 MEMCPY( attr
, &ctx
->Light
, sizeof(struct gl_light_attrib
) );
275 newnode
= new_attrib_node( GL_LIGHTING_BIT
);
276 newnode
->data
= attr
;
277 newnode
->next
= head
;
281 if (mask
& GL_LINE_BIT
) {
282 struct gl_line_attrib
*attr
;
283 attr
= MALLOC_STRUCT( gl_line_attrib
);
284 MEMCPY( attr
, &ctx
->Line
, sizeof(struct gl_line_attrib
) );
285 newnode
= new_attrib_node( GL_LINE_BIT
);
286 newnode
->data
= attr
;
287 newnode
->next
= head
;
291 if (mask
& GL_LIST_BIT
) {
292 struct gl_list_attrib
*attr
;
293 attr
= MALLOC_STRUCT( gl_list_attrib
);
294 MEMCPY( attr
, &ctx
->List
, sizeof(struct gl_list_attrib
) );
295 newnode
= new_attrib_node( GL_LIST_BIT
);
296 newnode
->data
= attr
;
297 newnode
->next
= head
;
301 if (mask
& GL_PIXEL_MODE_BIT
) {
302 struct gl_pixel_attrib
*attr
;
303 attr
= MALLOC_STRUCT( gl_pixel_attrib
);
304 MEMCPY( attr
, &ctx
->Pixel
, sizeof(struct gl_pixel_attrib
) );
305 /* push the Read FBO's ReadBuffer state, not ctx->Pixel.ReadBuffer */
306 attr
->ReadBuffer
= ctx
->ReadBuffer
->ColorReadBuffer
;
307 newnode
= new_attrib_node( GL_PIXEL_MODE_BIT
);
308 newnode
->data
= attr
;
309 newnode
->next
= head
;
313 if (mask
& GL_POINT_BIT
) {
314 struct gl_point_attrib
*attr
;
315 attr
= MALLOC_STRUCT( gl_point_attrib
);
316 MEMCPY( attr
, &ctx
->Point
, sizeof(struct gl_point_attrib
) );
317 newnode
= new_attrib_node( GL_POINT_BIT
);
318 newnode
->data
= attr
;
319 newnode
->next
= head
;
323 if (mask
& GL_POLYGON_BIT
) {
324 struct gl_polygon_attrib
*attr
;
325 attr
= MALLOC_STRUCT( gl_polygon_attrib
);
326 MEMCPY( attr
, &ctx
->Polygon
, sizeof(struct gl_polygon_attrib
) );
327 newnode
= new_attrib_node( GL_POLYGON_BIT
);
328 newnode
->data
= attr
;
329 newnode
->next
= head
;
333 if (mask
& GL_POLYGON_STIPPLE_BIT
) {
335 stipple
= (GLuint
*) MALLOC( 32*sizeof(GLuint
) );
336 MEMCPY( stipple
, ctx
->PolygonStipple
, 32*sizeof(GLuint
) );
337 newnode
= new_attrib_node( GL_POLYGON_STIPPLE_BIT
);
338 newnode
->data
= stipple
;
339 newnode
->next
= head
;
343 if (mask
& GL_SCISSOR_BIT
) {
344 struct gl_scissor_attrib
*attr
;
345 attr
= MALLOC_STRUCT( gl_scissor_attrib
);
346 MEMCPY( attr
, &ctx
->Scissor
, sizeof(struct gl_scissor_attrib
) );
347 newnode
= new_attrib_node( GL_SCISSOR_BIT
);
348 newnode
->data
= attr
;
349 newnode
->next
= head
;
353 if (mask
& GL_STENCIL_BUFFER_BIT
) {
354 struct gl_stencil_attrib
*attr
;
355 attr
= MALLOC_STRUCT( gl_stencil_attrib
);
356 MEMCPY( attr
, &ctx
->Stencil
, sizeof(struct gl_stencil_attrib
) );
357 newnode
= new_attrib_node( GL_STENCIL_BUFFER_BIT
);
358 newnode
->data
= attr
;
359 newnode
->next
= head
;
363 if (mask
& GL_TEXTURE_BIT
) {
364 struct texture_state
*texstate
= CALLOC_STRUCT(texture_state
);
368 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glPushAttrib(GL_TEXTURE_BIT)");
372 _mesa_lock_context_textures(ctx
);
374 /* copy/save the bulk of texture state here */
375 _mesa_memcpy(&texstate
->Texture
, &ctx
->Texture
, sizeof(ctx
->Texture
));
377 /* Save references to the currently bound texture objects so they don't
378 * accidentally get deleted while referenced in the attribute stack.
380 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
381 _mesa_reference_texobj(&texstate
->SavedTexRef
[u
][TEXTURE_1D_INDEX
],
382 ctx
->Texture
.Unit
[u
].Current1D
);
383 _mesa_reference_texobj(&texstate
->SavedTexRef
[u
][TEXTURE_2D_INDEX
],
384 ctx
->Texture
.Unit
[u
].Current2D
);
385 _mesa_reference_texobj(&texstate
->SavedTexRef
[u
][TEXTURE_3D_INDEX
],
386 ctx
->Texture
.Unit
[u
].Current3D
);
387 _mesa_reference_texobj(&texstate
->SavedTexRef
[u
][TEXTURE_CUBE_INDEX
],
388 ctx
->Texture
.Unit
[u
].CurrentCubeMap
);
389 _mesa_reference_texobj(&texstate
->SavedTexRef
[u
][TEXTURE_RECT_INDEX
],
390 ctx
->Texture
.Unit
[u
].CurrentRect
);
391 _mesa_reference_texobj(&texstate
->SavedTexRef
[u
][TEXTURE_1D_ARRAY_INDEX
],
392 ctx
->Texture
.Unit
[u
].Current1DArray
);
393 _mesa_reference_texobj(&texstate
->SavedTexRef
[u
][TEXTURE_2D_ARRAY_INDEX
],
394 ctx
->Texture
.Unit
[u
].Current2DArray
);
397 /* copy state/contents of the currently bound texture objects */
398 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
399 _mesa_copy_texture_object(&texstate
->SavedObj
[u
][TEXTURE_1D_INDEX
],
400 ctx
->Texture
.Unit
[u
].Current1D
);
401 _mesa_copy_texture_object(&texstate
->SavedObj
[u
][TEXTURE_2D_INDEX
],
402 ctx
->Texture
.Unit
[u
].Current2D
);
403 _mesa_copy_texture_object(&texstate
->SavedObj
[u
][TEXTURE_3D_INDEX
],
404 ctx
->Texture
.Unit
[u
].Current3D
);
405 _mesa_copy_texture_object(&texstate
->SavedObj
[u
][TEXTURE_CUBE_INDEX
],
406 ctx
->Texture
.Unit
[u
].CurrentCubeMap
);
407 _mesa_copy_texture_object(&texstate
->SavedObj
[u
][TEXTURE_RECT_INDEX
],
408 ctx
->Texture
.Unit
[u
].CurrentRect
);
409 _mesa_copy_texture_object(&texstate
->SavedObj
[u
][TEXTURE_1D_ARRAY_INDEX
],
410 ctx
->Texture
.Unit
[u
].Current1DArray
);
411 _mesa_copy_texture_object(&texstate
->SavedObj
[u
][TEXTURE_2D_ARRAY_INDEX
],
412 ctx
->Texture
.Unit
[u
].Current2DArray
);
415 _mesa_unlock_context_textures(ctx
);
417 newnode
= new_attrib_node( GL_TEXTURE_BIT
);
418 newnode
->data
= texstate
;
419 newnode
->next
= head
;
423 if (mask
& GL_TRANSFORM_BIT
) {
424 struct gl_transform_attrib
*attr
;
425 attr
= MALLOC_STRUCT( gl_transform_attrib
);
426 MEMCPY( attr
, &ctx
->Transform
, sizeof(struct gl_transform_attrib
) );
427 newnode
= new_attrib_node( GL_TRANSFORM_BIT
);
428 newnode
->data
= attr
;
429 newnode
->next
= head
;
433 if (mask
& GL_VIEWPORT_BIT
) {
434 struct gl_viewport_attrib
*attr
;
435 attr
= MALLOC_STRUCT( gl_viewport_attrib
);
436 MEMCPY( attr
, &ctx
->Viewport
, sizeof(struct gl_viewport_attrib
) );
437 newnode
= new_attrib_node( GL_VIEWPORT_BIT
);
438 newnode
->data
= attr
;
439 newnode
->next
= head
;
443 /* GL_ARB_multisample */
444 if (mask
& GL_MULTISAMPLE_BIT_ARB
) {
445 struct gl_multisample_attrib
*attr
;
446 attr
= MALLOC_STRUCT( gl_multisample_attrib
);
447 MEMCPY( attr
, &ctx
->Multisample
, sizeof(struct gl_multisample_attrib
) );
448 newnode
= new_attrib_node( GL_MULTISAMPLE_BIT_ARB
);
449 newnode
->data
= attr
;
450 newnode
->next
= head
;
455 ctx
->AttribStack
[ctx
->AttribStackDepth
] = head
;
456 ctx
->AttribStackDepth
++;
462 pop_enable_group(GLcontext
*ctx
, const struct gl_enable_attrib
*enable
)
466 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM) \
467 if ((VALUE) != (NEWVALUE)) { \
468 _mesa_set_enable( ctx, ENUM, (NEWVALUE) ); \
471 TEST_AND_UPDATE(ctx
->Color
.AlphaEnabled
, enable
->AlphaTest
, GL_ALPHA_TEST
);
472 TEST_AND_UPDATE(ctx
->Color
.BlendEnabled
, enable
->Blend
, GL_BLEND
);
474 for (i
=0;i
<MAX_CLIP_PLANES
;i
++) {
475 const GLuint mask
= 1 << i
;
476 if ((ctx
->Transform
.ClipPlanesEnabled
& mask
) != (enable
->ClipPlanes
& mask
))
477 _mesa_set_enable(ctx
, (GLenum
) (GL_CLIP_PLANE0
+ i
),
478 (GLboolean
) ((enable
->ClipPlanes
& mask
) ? GL_TRUE
: GL_FALSE
));
481 TEST_AND_UPDATE(ctx
->Light
.ColorMaterialEnabled
, enable
->ColorMaterial
,
483 TEST_AND_UPDATE(ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_PRECONVOLUTION
],
484 enable
->ColorTable
[COLORTABLE_PRECONVOLUTION
],
486 TEST_AND_UPDATE(ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCONVOLUTION
],
487 enable
->ColorTable
[COLORTABLE_POSTCONVOLUTION
],
488 GL_POST_CONVOLUTION_COLOR_TABLE
);
489 TEST_AND_UPDATE(ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCOLORMATRIX
],
490 enable
->ColorTable
[COLORTABLE_POSTCOLORMATRIX
],
491 GL_POST_COLOR_MATRIX_COLOR_TABLE
);
492 TEST_AND_UPDATE(ctx
->Polygon
.CullFlag
, enable
->CullFace
, GL_CULL_FACE
);
493 TEST_AND_UPDATE(ctx
->Depth
.Test
, enable
->DepthTest
, GL_DEPTH_TEST
);
494 TEST_AND_UPDATE(ctx
->Color
.DitherFlag
, enable
->Dither
, GL_DITHER
);
495 TEST_AND_UPDATE(ctx
->Pixel
.Convolution1DEnabled
, enable
->Convolution1D
,
497 TEST_AND_UPDATE(ctx
->Pixel
.Convolution2DEnabled
, enable
->Convolution2D
,
499 TEST_AND_UPDATE(ctx
->Pixel
.Separable2DEnabled
, enable
->Separable2D
,
501 TEST_AND_UPDATE(ctx
->Fog
.Enabled
, enable
->Fog
, GL_FOG
);
502 TEST_AND_UPDATE(ctx
->Light
.Enabled
, enable
->Lighting
, GL_LIGHTING
);
503 TEST_AND_UPDATE(ctx
->Line
.SmoothFlag
, enable
->LineSmooth
, GL_LINE_SMOOTH
);
504 TEST_AND_UPDATE(ctx
->Line
.StippleFlag
, enable
->LineStipple
,
506 TEST_AND_UPDATE(ctx
->Color
.IndexLogicOpEnabled
, enable
->IndexLogicOp
,
508 TEST_AND_UPDATE(ctx
->Color
.ColorLogicOpEnabled
, enable
->ColorLogicOp
,
511 TEST_AND_UPDATE(ctx
->Eval
.Map1Color4
, enable
->Map1Color4
, GL_MAP1_COLOR_4
);
512 TEST_AND_UPDATE(ctx
->Eval
.Map1Index
, enable
->Map1Index
, GL_MAP1_INDEX
);
513 TEST_AND_UPDATE(ctx
->Eval
.Map1Normal
, enable
->Map1Normal
, GL_MAP1_NORMAL
);
514 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord1
, enable
->Map1TextureCoord1
,
515 GL_MAP1_TEXTURE_COORD_1
);
516 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord2
, enable
->Map1TextureCoord2
,
517 GL_MAP1_TEXTURE_COORD_2
);
518 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord3
, enable
->Map1TextureCoord3
,
519 GL_MAP1_TEXTURE_COORD_3
);
520 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord4
, enable
->Map1TextureCoord4
,
521 GL_MAP1_TEXTURE_COORD_4
);
522 TEST_AND_UPDATE(ctx
->Eval
.Map1Vertex3
, enable
->Map1Vertex3
,
524 TEST_AND_UPDATE(ctx
->Eval
.Map1Vertex4
, enable
->Map1Vertex4
,
526 for (i
= 0; i
< 16; i
++) {
527 TEST_AND_UPDATE(ctx
->Eval
.Map1Attrib
[i
], enable
->Map1Attrib
[i
],
528 GL_MAP1_VERTEX_ATTRIB0_4_NV
+ i
);
531 TEST_AND_UPDATE(ctx
->Eval
.Map2Color4
, enable
->Map2Color4
, GL_MAP2_COLOR_4
);
532 TEST_AND_UPDATE(ctx
->Eval
.Map2Index
, enable
->Map2Index
, GL_MAP2_INDEX
);
533 TEST_AND_UPDATE(ctx
->Eval
.Map2Normal
, enable
->Map2Normal
, GL_MAP2_NORMAL
);
534 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord1
, enable
->Map2TextureCoord1
,
535 GL_MAP2_TEXTURE_COORD_1
);
536 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord2
, enable
->Map2TextureCoord2
,
537 GL_MAP2_TEXTURE_COORD_2
);
538 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord3
, enable
->Map2TextureCoord3
,
539 GL_MAP2_TEXTURE_COORD_3
);
540 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord4
, enable
->Map2TextureCoord4
,
541 GL_MAP2_TEXTURE_COORD_4
);
542 TEST_AND_UPDATE(ctx
->Eval
.Map2Vertex3
, enable
->Map2Vertex3
,
544 TEST_AND_UPDATE(ctx
->Eval
.Map2Vertex4
, enable
->Map2Vertex4
,
546 for (i
= 0; i
< 16; i
++) {
547 TEST_AND_UPDATE(ctx
->Eval
.Map2Attrib
[i
], enable
->Map2Attrib
[i
],
548 GL_MAP2_VERTEX_ATTRIB0_4_NV
+ i
);
551 TEST_AND_UPDATE(ctx
->Eval
.AutoNormal
, enable
->AutoNormal
, GL_AUTO_NORMAL
);
552 TEST_AND_UPDATE(ctx
->Transform
.Normalize
, enable
->Normalize
, GL_NORMALIZE
);
553 TEST_AND_UPDATE(ctx
->Transform
.RescaleNormals
, enable
->RescaleNormals
,
554 GL_RESCALE_NORMAL_EXT
);
555 TEST_AND_UPDATE(ctx
->Transform
.RasterPositionUnclipped
,
556 enable
->RasterPositionUnclipped
,
557 GL_RASTER_POSITION_UNCLIPPED_IBM
);
558 TEST_AND_UPDATE(ctx
->Point
.SmoothFlag
, enable
->PointSmooth
,
560 if (ctx
->Extensions
.NV_point_sprite
|| ctx
->Extensions
.ARB_point_sprite
) {
561 TEST_AND_UPDATE(ctx
->Point
.PointSprite
, enable
->PointSprite
,
564 TEST_AND_UPDATE(ctx
->Polygon
.OffsetPoint
, enable
->PolygonOffsetPoint
,
565 GL_POLYGON_OFFSET_POINT
);
566 TEST_AND_UPDATE(ctx
->Polygon
.OffsetLine
, enable
->PolygonOffsetLine
,
567 GL_POLYGON_OFFSET_LINE
);
568 TEST_AND_UPDATE(ctx
->Polygon
.OffsetFill
, enable
->PolygonOffsetFill
,
569 GL_POLYGON_OFFSET_FILL
);
570 TEST_AND_UPDATE(ctx
->Polygon
.SmoothFlag
, enable
->PolygonSmooth
,
572 TEST_AND_UPDATE(ctx
->Polygon
.StippleFlag
, enable
->PolygonStipple
,
574 TEST_AND_UPDATE(ctx
->Scissor
.Enabled
, enable
->Scissor
, GL_SCISSOR_TEST
);
575 TEST_AND_UPDATE(ctx
->Stencil
.Enabled
, enable
->Stencil
, GL_STENCIL_TEST
);
576 if (ctx
->Extensions
.EXT_stencil_two_side
) {
577 TEST_AND_UPDATE(ctx
->Stencil
.TestTwoSide
, enable
->StencilTwoSide
, GL_STENCIL_TEST_TWO_SIDE_EXT
);
579 TEST_AND_UPDATE(ctx
->Multisample
.Enabled
, enable
->MultisampleEnabled
,
581 TEST_AND_UPDATE(ctx
->Multisample
.SampleAlphaToCoverage
,
582 enable
->SampleAlphaToCoverage
,
583 GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
);
584 TEST_AND_UPDATE(ctx
->Multisample
.SampleAlphaToOne
,
585 enable
->SampleAlphaToOne
,
586 GL_SAMPLE_ALPHA_TO_ONE_ARB
);
587 TEST_AND_UPDATE(ctx
->Multisample
.SampleCoverage
,
588 enable
->SampleCoverage
,
589 GL_SAMPLE_COVERAGE_ARB
);
590 TEST_AND_UPDATE(ctx
->Multisample
.SampleCoverageInvert
,
591 enable
->SampleCoverageInvert
,
592 GL_SAMPLE_COVERAGE_INVERT_ARB
);
593 /* GL_ARB_vertex_program, GL_NV_vertex_program */
594 TEST_AND_UPDATE(ctx
->VertexProgram
.Enabled
,
595 enable
->VertexProgram
,
596 GL_VERTEX_PROGRAM_ARB
);
597 TEST_AND_UPDATE(ctx
->VertexProgram
.PointSizeEnabled
,
598 enable
->VertexProgramPointSize
,
599 GL_VERTEX_PROGRAM_POINT_SIZE_ARB
);
600 TEST_AND_UPDATE(ctx
->VertexProgram
.TwoSideEnabled
,
601 enable
->VertexProgramTwoSide
,
602 GL_VERTEX_PROGRAM_TWO_SIDE_ARB
);
604 #undef TEST_AND_UPDATE
606 /* texture unit enables */
607 for (i
= 0; i
< ctx
->Const
.MaxTextureUnits
; i
++) {
608 if (ctx
->Texture
.Unit
[i
].Enabled
!= enable
->Texture
[i
]) {
609 ctx
->Texture
.Unit
[i
].Enabled
= enable
->Texture
[i
];
610 if (ctx
->Driver
.Enable
) {
611 if (ctx
->Driver
.ActiveTexture
) {
612 (*ctx
->Driver
.ActiveTexture
)(ctx
, i
);
614 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_1D
,
615 (GLboolean
) (enable
->Texture
[i
] & TEXTURE_1D_BIT
) );
616 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_2D
,
617 (GLboolean
) (enable
->Texture
[i
] & TEXTURE_2D_BIT
) );
618 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_3D
,
619 (GLboolean
) (enable
->Texture
[i
] & TEXTURE_3D_BIT
) );
620 if (ctx
->Extensions
.ARB_texture_cube_map
)
621 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_CUBE_MAP_ARB
,
622 (GLboolean
) (enable
->Texture
[i
] & TEXTURE_CUBE_BIT
) );
623 if (ctx
->Extensions
.NV_texture_rectangle
)
624 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_RECTANGLE_NV
,
625 (GLboolean
) (enable
->Texture
[i
] & TEXTURE_RECT_BIT
) );
629 if (ctx
->Texture
.Unit
[i
].TexGenEnabled
!= enable
->TexGen
[i
]) {
630 ctx
->Texture
.Unit
[i
].TexGenEnabled
= enable
->TexGen
[i
];
631 if (ctx
->Driver
.Enable
) {
632 if (ctx
->Driver
.ActiveTexture
) {
633 (*ctx
->Driver
.ActiveTexture
)(ctx
, i
);
635 if (enable
->TexGen
[i
] & S_BIT
)
636 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_S
, GL_TRUE
);
638 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_S
, GL_FALSE
);
639 if (enable
->TexGen
[i
] & T_BIT
)
640 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_T
, GL_TRUE
);
642 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_T
, GL_FALSE
);
643 if (enable
->TexGen
[i
] & R_BIT
)
644 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_R
, GL_TRUE
);
646 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_R
, GL_FALSE
);
647 if (enable
->TexGen
[i
] & Q_BIT
)
648 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_Q
, GL_TRUE
);
650 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_Q
, GL_FALSE
);
654 /* GL_SGI_texture_color_table */
655 ctx
->Texture
.Unit
[i
].ColorTableEnabled
= enable
->TextureColorTable
[i
];
658 if (ctx
->Driver
.ActiveTexture
) {
659 (*ctx
->Driver
.ActiveTexture
)(ctx
, ctx
->Texture
.CurrentUnit
);
665 * Pop/restore texture attribute/group state.
668 pop_texture_group(GLcontext
*ctx
, struct texture_state
*texstate
)
672 _mesa_lock_context_textures(ctx
);
674 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
675 const struct gl_texture_unit
*unit
= &texstate
->Texture
.Unit
[u
];
678 _mesa_ActiveTextureARB(GL_TEXTURE0_ARB
+ u
);
679 _mesa_set_enable(ctx
, GL_TEXTURE_1D
,
680 (unit
->Enabled
& TEXTURE_1D_BIT
) ? GL_TRUE
: GL_FALSE
);
681 _mesa_set_enable(ctx
, GL_TEXTURE_2D
,
682 (unit
->Enabled
& TEXTURE_2D_BIT
) ? GL_TRUE
: GL_FALSE
);
683 _mesa_set_enable(ctx
, GL_TEXTURE_3D
,
684 (unit
->Enabled
& TEXTURE_3D_BIT
) ? GL_TRUE
: GL_FALSE
);
685 if (ctx
->Extensions
.ARB_texture_cube_map
) {
686 _mesa_set_enable(ctx
, GL_TEXTURE_CUBE_MAP_ARB
,
687 (unit
->Enabled
& TEXTURE_CUBE_BIT
) ? GL_TRUE
: GL_FALSE
);
689 if (ctx
->Extensions
.NV_texture_rectangle
) {
690 _mesa_set_enable(ctx
, GL_TEXTURE_RECTANGLE_NV
,
691 (unit
->Enabled
& TEXTURE_RECT_BIT
) ? GL_TRUE
: GL_FALSE
);
693 if (ctx
->Extensions
.SGI_texture_color_table
) {
694 _mesa_set_enable(ctx
, GL_TEXTURE_COLOR_TABLE_SGI
,
695 unit
->ColorTableEnabled
);
697 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_TEXTURE_ENV_MODE
, unit
->EnvMode
);
698 _mesa_TexEnvfv(GL_TEXTURE_ENV
, GL_TEXTURE_ENV_COLOR
, unit
->EnvColor
);
699 _mesa_TexGeni(GL_S
, GL_TEXTURE_GEN_MODE
, unit
->GenModeS
);
700 _mesa_TexGeni(GL_T
, GL_TEXTURE_GEN_MODE
, unit
->GenModeT
);
701 _mesa_TexGeni(GL_R
, GL_TEXTURE_GEN_MODE
, unit
->GenModeR
);
702 _mesa_TexGeni(GL_Q
, GL_TEXTURE_GEN_MODE
, unit
->GenModeQ
);
703 _mesa_TexGenfv(GL_S
, GL_OBJECT_PLANE
, unit
->ObjectPlaneS
);
704 _mesa_TexGenfv(GL_T
, GL_OBJECT_PLANE
, unit
->ObjectPlaneT
);
705 _mesa_TexGenfv(GL_R
, GL_OBJECT_PLANE
, unit
->ObjectPlaneR
);
706 _mesa_TexGenfv(GL_Q
, GL_OBJECT_PLANE
, unit
->ObjectPlaneQ
);
707 /* Eye plane done differently to avoid re-transformation */
709 struct gl_texture_unit
*destUnit
= &ctx
->Texture
.Unit
[u
];
710 COPY_4FV(destUnit
->EyePlaneS
, unit
->EyePlaneS
);
711 COPY_4FV(destUnit
->EyePlaneT
, unit
->EyePlaneT
);
712 COPY_4FV(destUnit
->EyePlaneR
, unit
->EyePlaneR
);
713 COPY_4FV(destUnit
->EyePlaneQ
, unit
->EyePlaneQ
);
714 if (ctx
->Driver
.TexGen
) {
715 ctx
->Driver
.TexGen(ctx
, GL_S
, GL_EYE_PLANE
, unit
->EyePlaneS
);
716 ctx
->Driver
.TexGen(ctx
, GL_T
, GL_EYE_PLANE
, unit
->EyePlaneT
);
717 ctx
->Driver
.TexGen(ctx
, GL_R
, GL_EYE_PLANE
, unit
->EyePlaneR
);
718 ctx
->Driver
.TexGen(ctx
, GL_Q
, GL_EYE_PLANE
, unit
->EyePlaneQ
);
721 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_S
,
722 ((unit
->TexGenEnabled
& S_BIT
) ? GL_TRUE
: GL_FALSE
));
723 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_T
,
724 ((unit
->TexGenEnabled
& T_BIT
) ? GL_TRUE
: GL_FALSE
));
725 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_R
,
726 ((unit
->TexGenEnabled
& R_BIT
) ? GL_TRUE
: GL_FALSE
));
727 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_Q
,
728 ((unit
->TexGenEnabled
& Q_BIT
) ? GL_TRUE
: GL_FALSE
));
729 if (ctx
->Extensions
.EXT_texture_lod_bias
) {
730 _mesa_TexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT
,
731 GL_TEXTURE_LOD_BIAS_EXT
, unit
->LodBias
);
733 if (ctx
->Extensions
.EXT_texture_env_combine
||
734 ctx
->Extensions
.ARB_texture_env_combine
) {
735 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_COMBINE_RGB
,
736 unit
->Combine
.ModeRGB
);
737 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_COMBINE_ALPHA
,
738 unit
->Combine
.ModeA
);
739 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE0_RGB
,
740 unit
->Combine
.SourceRGB
[0]);
741 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE1_RGB
,
742 unit
->Combine
.SourceRGB
[1]);
743 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE2_RGB
,
744 unit
->Combine
.SourceRGB
[2]);
745 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE0_ALPHA
,
746 unit
->Combine
.SourceA
[0]);
747 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE1_ALPHA
,
748 unit
->Combine
.SourceA
[1]);
749 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE2_ALPHA
,
750 unit
->Combine
.SourceA
[2]);
751 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND0_RGB
,
752 unit
->Combine
.OperandRGB
[0]);
753 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND1_RGB
,
754 unit
->Combine
.OperandRGB
[1]);
755 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND2_RGB
,
756 unit
->Combine
.OperandRGB
[2]);
757 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND0_ALPHA
,
758 unit
->Combine
.OperandA
[0]);
759 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND1_ALPHA
,
760 unit
->Combine
.OperandA
[1]);
761 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND2_ALPHA
,
762 unit
->Combine
.OperandA
[2]);
763 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_RGB_SCALE
,
764 1 << unit
->Combine
.ScaleShiftRGB
);
765 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_ALPHA_SCALE
,
766 1 << unit
->Combine
.ScaleShiftA
);
769 /* Restore texture object state for each target */
770 for (tgt
= 0; tgt
< NUM_TEXTURE_TARGETS
; tgt
++) {
771 const struct gl_texture_object
*obj
= NULL
;
772 GLfloat bordColor
[4];
775 obj
= &texstate
->SavedObj
[u
][tgt
];
777 /* don't restore state for unsupported targets to prevent
780 if (obj
->Target
== GL_TEXTURE_CUBE_MAP_ARB
&&
781 !ctx
->Extensions
.ARB_texture_cube_map
) {
784 else if (obj
->Target
== GL_TEXTURE_RECTANGLE_NV
&&
785 !ctx
->Extensions
.NV_texture_rectangle
) {
788 else if ((obj
->Target
== GL_TEXTURE_1D_ARRAY_EXT
||
789 obj
->Target
== GL_TEXTURE_2D_ARRAY_EXT
) &&
790 !ctx
->Extensions
.MESA_texture_array
) {
794 target
= obj
->Target
;
796 _mesa_BindTexture(target
, obj
->Name
);
798 bordColor
[0] = CHAN_TO_FLOAT(obj
->BorderColor
[0]);
799 bordColor
[1] = CHAN_TO_FLOAT(obj
->BorderColor
[1]);
800 bordColor
[2] = CHAN_TO_FLOAT(obj
->BorderColor
[2]);
801 bordColor
[3] = CHAN_TO_FLOAT(obj
->BorderColor
[3]);
803 _mesa_TexParameterfv(target
, GL_TEXTURE_BORDER_COLOR
, bordColor
);
804 _mesa_TexParameterf(target
, GL_TEXTURE_PRIORITY
, obj
->Priority
);
805 _mesa_TexParameteri(target
, GL_TEXTURE_WRAP_S
, obj
->WrapS
);
806 _mesa_TexParameteri(target
, GL_TEXTURE_WRAP_T
, obj
->WrapT
);
807 _mesa_TexParameteri(target
, GL_TEXTURE_WRAP_R
, obj
->WrapR
);
808 _mesa_TexParameteri(target
, GL_TEXTURE_MIN_FILTER
, obj
->MinFilter
);
809 _mesa_TexParameteri(target
, GL_TEXTURE_MAG_FILTER
, obj
->MagFilter
);
810 _mesa_TexParameterf(target
, GL_TEXTURE_MIN_LOD
, obj
->MinLod
);
811 _mesa_TexParameterf(target
, GL_TEXTURE_MAX_LOD
, obj
->MaxLod
);
812 _mesa_TexParameterf(target
, GL_TEXTURE_LOD_BIAS
, obj
->LodBias
);
813 _mesa_TexParameteri(target
, GL_TEXTURE_BASE_LEVEL
, obj
->BaseLevel
);
814 if (target
!= GL_TEXTURE_RECTANGLE_ARB
)
815 _mesa_TexParameteri(target
, GL_TEXTURE_MAX_LEVEL
, obj
->MaxLevel
);
816 if (ctx
->Extensions
.EXT_texture_filter_anisotropic
) {
817 _mesa_TexParameterf(target
, GL_TEXTURE_MAX_ANISOTROPY_EXT
,
820 if (ctx
->Extensions
.SGIX_shadow
) {
821 _mesa_TexParameteri(target
, GL_TEXTURE_COMPARE_SGIX
,
823 _mesa_TexParameteri(target
, GL_TEXTURE_COMPARE_OPERATOR_SGIX
,
824 obj
->CompareOperator
);
826 if (ctx
->Extensions
.SGIX_shadow_ambient
) {
827 _mesa_TexParameterf(target
, GL_SHADOW_AMBIENT_SGIX
,
832 /* remove saved references to the texture objects */
833 for (tgt
= 0; tgt
< NUM_TEXTURE_TARGETS
; tgt
++) {
834 _mesa_reference_texobj(&texstate
->SavedTexRef
[u
][tgt
], NULL
);
838 _mesa_ActiveTextureARB(GL_TEXTURE0_ARB
+ texstate
->Texture
.CurrentUnit
);
840 _mesa_unlock_context_textures(ctx
);
845 * This function is kind of long just because we have to call a lot
846 * of device driver functions to update device driver state.
848 * XXX As it is now, most of the pop-code calls immediate-mode Mesa functions
849 * in order to restore GL state. This isn't terribly efficient but it
850 * ensures that dirty flags and any derived state gets updated correctly.
851 * We could at least check if the value to restore equals the current value
852 * and then skip the Mesa call.
855 _mesa_PopAttrib(void)
857 struct gl_attrib_node
*attr
, *next
;
858 GET_CURRENT_CONTEXT(ctx
);
859 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
861 if (ctx
->AttribStackDepth
== 0) {
862 _mesa_error( ctx
, GL_STACK_UNDERFLOW
, "glPopAttrib" );
866 ctx
->AttribStackDepth
--;
867 attr
= ctx
->AttribStack
[ctx
->AttribStackDepth
];
871 if (MESA_VERBOSE
& VERBOSE_API
) {
872 _mesa_debug(ctx
, "glPopAttrib %s\n",
873 _mesa_lookup_enum_by_nr(attr
->kind
));
876 switch (attr
->kind
) {
877 case GL_ACCUM_BUFFER_BIT
:
879 const struct gl_accum_attrib
*accum
;
880 accum
= (const struct gl_accum_attrib
*) attr
->data
;
881 _mesa_ClearAccum(accum
->ClearColor
[0],
882 accum
->ClearColor
[1],
883 accum
->ClearColor
[2],
884 accum
->ClearColor
[3]);
887 case GL_COLOR_BUFFER_BIT
:
889 const struct gl_colorbuffer_attrib
*color
;
890 color
= (const struct gl_colorbuffer_attrib
*) attr
->data
;
891 _mesa_ClearIndex((GLfloat
) color
->ClearIndex
);
892 _mesa_ClearColor(color
->ClearColor
[0],
893 color
->ClearColor
[1],
894 color
->ClearColor
[2],
895 color
->ClearColor
[3]);
896 _mesa_IndexMask(color
->IndexMask
);
897 _mesa_ColorMask((GLboolean
) (color
->ColorMask
[0] != 0),
898 (GLboolean
) (color
->ColorMask
[1] != 0),
899 (GLboolean
) (color
->ColorMask
[2] != 0),
900 (GLboolean
) (color
->ColorMask
[3] != 0));
902 /* Need to determine if more than one color output is
903 * specified. If so, call glDrawBuffersARB, else call
904 * glDrawBuffer(). This is a subtle, but essential point
905 * since GL_FRONT (for example) is illegal for the former
906 * function, but legal for the later.
908 GLboolean multipleBuffers
= GL_FALSE
;
909 if (ctx
->Extensions
.ARB_draw_buffers
) {
911 for (i
= 1; i
< ctx
->Const
.MaxDrawBuffers
; i
++) {
912 if (color
->DrawBuffer
[i
] != GL_NONE
) {
913 multipleBuffers
= GL_TRUE
;
918 /* Call the API_level functions, not _mesa_drawbuffers()
919 * since we need to do error checking on the pop'd
921 * Ex: if GL_FRONT were pushed, but we're popping with a
922 * user FBO bound, GL_FRONT will be illegal and we'll need
923 * to record that error. Per OpenGL ARB decision.
926 _mesa_DrawBuffersARB(ctx
->Const
.MaxDrawBuffers
,
929 _mesa_DrawBuffer(color
->DrawBuffer
[0]);
931 _mesa_set_enable(ctx
, GL_ALPHA_TEST
, color
->AlphaEnabled
);
932 _mesa_AlphaFunc(color
->AlphaFunc
, color
->AlphaRef
);
933 _mesa_set_enable(ctx
, GL_BLEND
, color
->BlendEnabled
);
934 _mesa_BlendFuncSeparateEXT(color
->BlendSrcRGB
,
938 /* This special case is because glBlendEquationSeparateEXT
939 * cannot take GL_LOGIC_OP as a parameter.
941 if ( color
->BlendEquationRGB
== color
->BlendEquationA
) {
942 _mesa_BlendEquation(color
->BlendEquationRGB
);
945 _mesa_BlendEquationSeparateEXT(color
->BlendEquationRGB
,
946 color
->BlendEquationA
);
948 _mesa_BlendColor(color
->BlendColor
[0],
949 color
->BlendColor
[1],
950 color
->BlendColor
[2],
951 color
->BlendColor
[3]);
952 _mesa_LogicOp(color
->LogicOp
);
953 _mesa_set_enable(ctx
, GL_COLOR_LOGIC_OP
,
954 color
->ColorLogicOpEnabled
);
955 _mesa_set_enable(ctx
, GL_INDEX_LOGIC_OP
,
956 color
->IndexLogicOpEnabled
);
957 _mesa_set_enable(ctx
, GL_DITHER
, color
->DitherFlag
);
961 FLUSH_CURRENT( ctx
, 0 );
962 MEMCPY( &ctx
->Current
, attr
->data
,
963 sizeof(struct gl_current_attrib
) );
965 case GL_DEPTH_BUFFER_BIT
:
967 const struct gl_depthbuffer_attrib
*depth
;
968 depth
= (const struct gl_depthbuffer_attrib
*) attr
->data
;
969 _mesa_DepthFunc(depth
->Func
);
970 _mesa_ClearDepth(depth
->Clear
);
971 _mesa_set_enable(ctx
, GL_DEPTH_TEST
, depth
->Test
);
972 _mesa_DepthMask(depth
->Mask
);
977 const struct gl_enable_attrib
*enable
;
978 enable
= (const struct gl_enable_attrib
*) attr
->data
;
979 pop_enable_group(ctx
, enable
);
980 ctx
->NewState
|= _NEW_ALL
;
984 MEMCPY( &ctx
->Eval
, attr
->data
, sizeof(struct gl_eval_attrib
) );
985 ctx
->NewState
|= _NEW_EVAL
;
989 const struct gl_fog_attrib
*fog
;
990 fog
= (const struct gl_fog_attrib
*) attr
->data
;
991 _mesa_set_enable(ctx
, GL_FOG
, fog
->Enabled
);
992 _mesa_Fogfv(GL_FOG_COLOR
, fog
->Color
);
993 _mesa_Fogf(GL_FOG_DENSITY
, fog
->Density
);
994 _mesa_Fogf(GL_FOG_START
, fog
->Start
);
995 _mesa_Fogf(GL_FOG_END
, fog
->End
);
996 _mesa_Fogf(GL_FOG_INDEX
, fog
->Index
);
997 _mesa_Fogi(GL_FOG_MODE
, fog
->Mode
);
1002 const struct gl_hint_attrib
*hint
;
1003 hint
= (const struct gl_hint_attrib
*) attr
->data
;
1004 _mesa_Hint(GL_PERSPECTIVE_CORRECTION_HINT
,
1005 hint
->PerspectiveCorrection
);
1006 _mesa_Hint(GL_POINT_SMOOTH_HINT
, hint
->PointSmooth
);
1007 _mesa_Hint(GL_LINE_SMOOTH_HINT
, hint
->LineSmooth
);
1008 _mesa_Hint(GL_POLYGON_SMOOTH_HINT
, hint
->PolygonSmooth
);
1009 _mesa_Hint(GL_FOG_HINT
, hint
->Fog
);
1010 _mesa_Hint(GL_CLIP_VOLUME_CLIPPING_HINT_EXT
,
1011 hint
->ClipVolumeClipping
);
1012 if (ctx
->Extensions
.ARB_texture_compression
)
1013 _mesa_Hint(GL_TEXTURE_COMPRESSION_HINT_ARB
,
1014 hint
->TextureCompression
);
1017 case GL_LIGHTING_BIT
:
1020 const struct gl_light_attrib
*light
;
1021 light
= (const struct gl_light_attrib
*) attr
->data
;
1022 /* lighting enable */
1023 _mesa_set_enable(ctx
, GL_LIGHTING
, light
->Enabled
);
1024 /* per-light state */
1025 if (_math_matrix_is_dirty(ctx
->ModelviewMatrixStack
.Top
))
1026 _math_matrix_analyse( ctx
->ModelviewMatrixStack
.Top
);
1028 for (i
= 0; i
< ctx
->Const
.MaxLights
; i
++) {
1029 const struct gl_light
*l
= &light
->Light
[i
];
1030 _mesa_set_enable(ctx
, GL_LIGHT0
+ i
, l
->Enabled
);
1031 _mesa_light(ctx
, i
, GL_AMBIENT
, l
->Ambient
);
1032 _mesa_light(ctx
, i
, GL_DIFFUSE
, l
->Diffuse
);
1033 _mesa_light(ctx
, i
, GL_SPECULAR
, l
->Specular
);
1034 _mesa_light(ctx
, i
, GL_POSITION
, l
->EyePosition
);
1035 _mesa_light(ctx
, i
, GL_SPOT_DIRECTION
, l
->EyeDirection
);
1036 _mesa_light(ctx
, i
, GL_SPOT_EXPONENT
, &l
->SpotExponent
);
1037 _mesa_light(ctx
, i
, GL_SPOT_CUTOFF
, &l
->SpotCutoff
);
1038 _mesa_light(ctx
, i
, GL_CONSTANT_ATTENUATION
,
1039 &l
->ConstantAttenuation
);
1040 _mesa_light(ctx
, i
, GL_LINEAR_ATTENUATION
,
1041 &l
->LinearAttenuation
);
1042 _mesa_light(ctx
, i
, GL_QUADRATIC_ATTENUATION
,
1043 &l
->QuadraticAttenuation
);
1046 _mesa_LightModelfv(GL_LIGHT_MODEL_AMBIENT
,
1047 light
->Model
.Ambient
);
1048 _mesa_LightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER
,
1049 (GLfloat
) light
->Model
.LocalViewer
);
1050 _mesa_LightModelf(GL_LIGHT_MODEL_TWO_SIDE
,
1051 (GLfloat
) light
->Model
.TwoSide
);
1052 _mesa_LightModelf(GL_LIGHT_MODEL_COLOR_CONTROL
,
1053 (GLfloat
) light
->Model
.ColorControl
);
1055 _mesa_ShadeModel(light
->ShadeModel
);
1056 /* color material */
1057 _mesa_ColorMaterial(light
->ColorMaterialFace
,
1058 light
->ColorMaterialMode
);
1059 _mesa_set_enable(ctx
, GL_COLOR_MATERIAL
,
1060 light
->ColorMaterialEnabled
);
1062 MEMCPY(&ctx
->Light
.Material
, &light
->Material
,
1063 sizeof(struct gl_material
));
1068 const struct gl_line_attrib
*line
;
1069 line
= (const struct gl_line_attrib
*) attr
->data
;
1070 _mesa_set_enable(ctx
, GL_LINE_SMOOTH
, line
->SmoothFlag
);
1071 _mesa_set_enable(ctx
, GL_LINE_STIPPLE
, line
->StippleFlag
);
1072 _mesa_LineStipple(line
->StippleFactor
, line
->StipplePattern
);
1073 _mesa_LineWidth(line
->Width
);
1077 MEMCPY( &ctx
->List
, attr
->data
, sizeof(struct gl_list_attrib
) );
1079 case GL_PIXEL_MODE_BIT
:
1080 MEMCPY( &ctx
->Pixel
, attr
->data
, sizeof(struct gl_pixel_attrib
) );
1081 /* XXX what other pixel state needs to be set by function calls? */
1082 _mesa_ReadBuffer(ctx
->Pixel
.ReadBuffer
);
1083 ctx
->NewState
|= _NEW_PIXEL
;
1087 const struct gl_point_attrib
*point
;
1088 point
= (const struct gl_point_attrib
*) attr
->data
;
1089 _mesa_PointSize(point
->Size
);
1090 _mesa_set_enable(ctx
, GL_POINT_SMOOTH
, point
->SmoothFlag
);
1091 if (ctx
->Extensions
.EXT_point_parameters
) {
1092 _mesa_PointParameterfv(GL_DISTANCE_ATTENUATION_EXT
,
1094 _mesa_PointParameterf(GL_POINT_SIZE_MIN_EXT
,
1096 _mesa_PointParameterf(GL_POINT_SIZE_MAX_EXT
,
1098 _mesa_PointParameterf(GL_POINT_FADE_THRESHOLD_SIZE_EXT
,
1101 if (ctx
->Extensions
.NV_point_sprite
1102 || ctx
->Extensions
.ARB_point_sprite
) {
1104 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
1105 _mesa_TexEnvi(GL_POINT_SPRITE_NV
, GL_COORD_REPLACE_NV
,
1106 (GLint
) point
->CoordReplace
[u
]);
1108 _mesa_set_enable(ctx
, GL_POINT_SPRITE_NV
,point
->PointSprite
);
1109 if (ctx
->Extensions
.NV_point_sprite
)
1110 _mesa_PointParameteri(GL_POINT_SPRITE_R_MODE_NV
,
1111 ctx
->Point
.SpriteRMode
);
1112 _mesa_PointParameterf(GL_POINT_SPRITE_COORD_ORIGIN
,
1113 (GLfloat
)ctx
->Point
.SpriteOrigin
);
1117 case GL_POLYGON_BIT
:
1119 const struct gl_polygon_attrib
*polygon
;
1120 polygon
= (const struct gl_polygon_attrib
*) attr
->data
;
1121 _mesa_CullFace(polygon
->CullFaceMode
);
1122 _mesa_FrontFace(polygon
->FrontFace
);
1123 _mesa_PolygonMode(GL_FRONT
, polygon
->FrontMode
);
1124 _mesa_PolygonMode(GL_BACK
, polygon
->BackMode
);
1125 _mesa_PolygonOffset(polygon
->OffsetFactor
,
1126 polygon
->OffsetUnits
);
1127 _mesa_set_enable(ctx
, GL_POLYGON_SMOOTH
, polygon
->SmoothFlag
);
1128 _mesa_set_enable(ctx
, GL_POLYGON_STIPPLE
, polygon
->StippleFlag
);
1129 _mesa_set_enable(ctx
, GL_CULL_FACE
, polygon
->CullFlag
);
1130 _mesa_set_enable(ctx
, GL_POLYGON_OFFSET_POINT
,
1131 polygon
->OffsetPoint
);
1132 _mesa_set_enable(ctx
, GL_POLYGON_OFFSET_LINE
,
1133 polygon
->OffsetLine
);
1134 _mesa_set_enable(ctx
, GL_POLYGON_OFFSET_FILL
,
1135 polygon
->OffsetFill
);
1138 case GL_POLYGON_STIPPLE_BIT
:
1139 MEMCPY( ctx
->PolygonStipple
, attr
->data
, 32*sizeof(GLuint
) );
1140 ctx
->NewState
|= _NEW_POLYGONSTIPPLE
;
1141 if (ctx
->Driver
.PolygonStipple
)
1142 ctx
->Driver
.PolygonStipple( ctx
, (const GLubyte
*) attr
->data
);
1144 case GL_SCISSOR_BIT
:
1146 const struct gl_scissor_attrib
*scissor
;
1147 scissor
= (const struct gl_scissor_attrib
*) attr
->data
;
1148 _mesa_Scissor(scissor
->X
, scissor
->Y
,
1149 scissor
->Width
, scissor
->Height
);
1150 _mesa_set_enable(ctx
, GL_SCISSOR_TEST
, scissor
->Enabled
);
1153 case GL_STENCIL_BUFFER_BIT
:
1155 const struct gl_stencil_attrib
*stencil
;
1156 stencil
= (const struct gl_stencil_attrib
*) attr
->data
;
1157 _mesa_set_enable(ctx
, GL_STENCIL_TEST
, stencil
->Enabled
);
1158 _mesa_ClearStencil(stencil
->Clear
);
1159 if (ctx
->Extensions
.EXT_stencil_two_side
) {
1160 _mesa_set_enable(ctx
, GL_STENCIL_TEST_TWO_SIDE_EXT
,
1161 stencil
->TestTwoSide
);
1162 _mesa_ActiveStencilFaceEXT(stencil
->ActiveFace
1163 ? GL_BACK
: GL_FRONT
);
1166 _mesa_StencilFuncSeparate(GL_FRONT
,
1167 stencil
->Function
[0],
1169 stencil
->ValueMask
[0]);
1170 _mesa_StencilMaskSeparate(GL_FRONT
, stencil
->WriteMask
[0]);
1171 _mesa_StencilOpSeparate(GL_FRONT
, stencil
->FailFunc
[0],
1172 stencil
->ZFailFunc
[0],
1173 stencil
->ZPassFunc
[0]);
1175 _mesa_StencilFuncSeparate(GL_BACK
,
1176 stencil
->Function
[1],
1178 stencil
->ValueMask
[1]);
1179 _mesa_StencilMaskSeparate(GL_BACK
, stencil
->WriteMask
[1]);
1180 _mesa_StencilOpSeparate(GL_BACK
, stencil
->FailFunc
[1],
1181 stencil
->ZFailFunc
[1],
1182 stencil
->ZPassFunc
[1]);
1185 case GL_TRANSFORM_BIT
:
1188 const struct gl_transform_attrib
*xform
;
1189 xform
= (const struct gl_transform_attrib
*) attr
->data
;
1190 _mesa_MatrixMode(xform
->MatrixMode
);
1191 if (_math_matrix_is_dirty(ctx
->ProjectionMatrixStack
.Top
))
1192 _math_matrix_analyse( ctx
->ProjectionMatrixStack
.Top
);
1194 /* restore clip planes */
1195 for (i
= 0; i
< MAX_CLIP_PLANES
; i
++) {
1196 const GLuint mask
= 1 << 1;
1197 const GLfloat
*eyePlane
= xform
->EyeUserPlane
[i
];
1198 COPY_4V(ctx
->Transform
.EyeUserPlane
[i
], eyePlane
);
1199 if (xform
->ClipPlanesEnabled
& mask
) {
1200 _mesa_set_enable(ctx
, GL_CLIP_PLANE0
+ i
, GL_TRUE
);
1203 _mesa_set_enable(ctx
, GL_CLIP_PLANE0
+ i
, GL_FALSE
);
1205 if (ctx
->Driver
.ClipPlane
)
1206 ctx
->Driver
.ClipPlane( ctx
, GL_CLIP_PLANE0
+ i
, eyePlane
);
1209 /* normalize/rescale */
1210 if (xform
->Normalize
!= ctx
->Transform
.Normalize
)
1211 _mesa_set_enable(ctx
, GL_NORMALIZE
,ctx
->Transform
.Normalize
);
1212 if (xform
->RescaleNormals
!= ctx
->Transform
.RescaleNormals
)
1213 _mesa_set_enable(ctx
, GL_RESCALE_NORMAL_EXT
,
1214 ctx
->Transform
.RescaleNormals
);
1217 case GL_TEXTURE_BIT
:
1218 /* Take care of texture object reference counters */
1220 struct texture_state
*texstate
1221 = (struct texture_state
*) attr
->data
;
1222 pop_texture_group(ctx
, texstate
);
1223 ctx
->NewState
|= _NEW_TEXTURE
;
1226 case GL_VIEWPORT_BIT
:
1228 const struct gl_viewport_attrib
*vp
;
1229 vp
= (const struct gl_viewport_attrib
*) attr
->data
;
1230 _mesa_Viewport(vp
->X
, vp
->Y
, vp
->Width
, vp
->Height
);
1231 _mesa_DepthRange(vp
->Near
, vp
->Far
);
1234 case GL_MULTISAMPLE_BIT_ARB
:
1236 const struct gl_multisample_attrib
*ms
;
1237 ms
= (const struct gl_multisample_attrib
*) attr
->data
;
1238 _mesa_SampleCoverageARB(ms
->SampleCoverageValue
,
1239 ms
->SampleCoverageInvert
);
1244 _mesa_problem( ctx
, "Bad attrib flag in PopAttrib");
1257 * Helper for incrementing/decrementing vertex buffer object reference
1258 * counts when pushing/popping the GL_CLIENT_VERTEX_ARRAY_BIT attribute group.
1261 adjust_buffer_object_ref_counts(struct gl_array_attrib
*array
, GLint step
)
1264 array
->ArrayObj
->Vertex
.BufferObj
->RefCount
+= step
;
1265 array
->ArrayObj
->Normal
.BufferObj
->RefCount
+= step
;
1266 array
->ArrayObj
->Color
.BufferObj
->RefCount
+= step
;
1267 array
->ArrayObj
->SecondaryColor
.BufferObj
->RefCount
+= step
;
1268 array
->ArrayObj
->FogCoord
.BufferObj
->RefCount
+= step
;
1269 array
->ArrayObj
->Index
.BufferObj
->RefCount
+= step
;
1270 array
->ArrayObj
->EdgeFlag
.BufferObj
->RefCount
+= step
;
1271 for (i
= 0; i
< MAX_TEXTURE_COORD_UNITS
; i
++)
1272 array
->ArrayObj
->TexCoord
[i
].BufferObj
->RefCount
+= step
;
1273 for (i
= 0; i
< VERT_ATTRIB_MAX
; i
++)
1274 array
->ArrayObj
->VertexAttrib
[i
].BufferObj
->RefCount
+= step
;
1276 array
->ArrayBufferObj
->RefCount
+= step
;
1277 array
->ElementArrayBufferObj
->RefCount
+= step
;
1282 * Copy gl_pixelstore_attrib from src to dst, updating buffer
1286 copy_pixelstore(GLcontext
*ctx
,
1287 struct gl_pixelstore_attrib
*dst
,
1288 const struct gl_pixelstore_attrib
*src
)
1290 dst
->Alignment
= src
->Alignment
;
1291 dst
->RowLength
= src
->RowLength
;
1292 dst
->SkipPixels
= src
->SkipPixels
;
1293 dst
->SkipRows
= src
->SkipRows
;
1294 dst
->ImageHeight
= src
->ImageHeight
;
1295 dst
->SkipImages
= src
->SkipImages
;
1296 dst
->SwapBytes
= src
->SwapBytes
;
1297 dst
->LsbFirst
= src
->LsbFirst
;
1298 dst
->ClientStorage
= src
->ClientStorage
;
1299 dst
->Invert
= src
->Invert
;
1300 _mesa_reference_buffer_object(ctx
, &dst
->BufferObj
, src
->BufferObj
);
1304 #define GL_CLIENT_PACK_BIT (1<<20)
1305 #define GL_CLIENT_UNPACK_BIT (1<<21)
1309 _mesa_PushClientAttrib(GLbitfield mask
)
1311 struct gl_attrib_node
*newnode
;
1312 struct gl_attrib_node
*head
;
1314 GET_CURRENT_CONTEXT(ctx
);
1315 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1317 if (ctx
->ClientAttribStackDepth
>= MAX_CLIENT_ATTRIB_STACK_DEPTH
) {
1318 _mesa_error( ctx
, GL_STACK_OVERFLOW
, "glPushClientAttrib" );
1322 /* Build linked list of attribute nodes which save all attribute
1323 * groups specified by the mask.
1327 if (mask
& GL_CLIENT_PIXEL_STORE_BIT
) {
1328 struct gl_pixelstore_attrib
*attr
;
1329 /* packing attribs */
1330 attr
= CALLOC_STRUCT( gl_pixelstore_attrib
);
1331 copy_pixelstore(ctx
, attr
, &ctx
->Pack
);
1332 newnode
= new_attrib_node( GL_CLIENT_PACK_BIT
);
1333 newnode
->data
= attr
;
1334 newnode
->next
= head
;
1336 /* unpacking attribs */
1337 attr
= CALLOC_STRUCT( gl_pixelstore_attrib
);
1338 copy_pixelstore(ctx
, attr
, &ctx
->Unpack
);
1339 newnode
= new_attrib_node( GL_CLIENT_UNPACK_BIT
);
1340 newnode
->data
= attr
;
1341 newnode
->next
= head
;
1345 if (mask
& GL_CLIENT_VERTEX_ARRAY_BIT
) {
1346 struct gl_array_attrib
*attr
;
1347 struct gl_array_object
*obj
;
1349 attr
= MALLOC_STRUCT( gl_array_attrib
);
1350 obj
= MALLOC_STRUCT( gl_array_object
);
1352 #if FEATURE_ARB_vertex_buffer_object
1353 /* increment ref counts since we're copying pointers to these objects */
1354 ctx
->Array
.ArrayBufferObj
->RefCount
++;
1355 ctx
->Array
.ElementArrayBufferObj
->RefCount
++;
1358 MEMCPY( attr
, &ctx
->Array
, sizeof(struct gl_array_attrib
) );
1359 MEMCPY( obj
, ctx
->Array
.ArrayObj
, sizeof(struct gl_array_object
) );
1361 attr
->ArrayObj
= obj
;
1363 newnode
= new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT
);
1364 newnode
->data
= attr
;
1365 newnode
->next
= head
;
1367 /* bump reference counts on buffer objects */
1368 adjust_buffer_object_ref_counts(&ctx
->Array
, 1);
1371 ctx
->ClientAttribStack
[ctx
->ClientAttribStackDepth
] = head
;
1372 ctx
->ClientAttribStackDepth
++;
1379 _mesa_PopClientAttrib(void)
1381 struct gl_attrib_node
*node
, *next
;
1383 GET_CURRENT_CONTEXT(ctx
);
1384 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
1386 if (ctx
->ClientAttribStackDepth
== 0) {
1387 _mesa_error( ctx
, GL_STACK_UNDERFLOW
, "glPopClientAttrib" );
1391 ctx
->ClientAttribStackDepth
--;
1392 node
= ctx
->ClientAttribStack
[ctx
->ClientAttribStackDepth
];
1395 switch (node
->kind
) {
1396 case GL_CLIENT_PACK_BIT
:
1398 struct gl_pixelstore_attrib
*store
=
1399 (struct gl_pixelstore_attrib
*) node
->data
;
1400 copy_pixelstore(ctx
, &ctx
->Pack
, store
);
1401 _mesa_reference_buffer_object(ctx
, &store
->BufferObj
, NULL
);
1403 ctx
->NewState
|= _NEW_PACKUNPACK
;
1405 case GL_CLIENT_UNPACK_BIT
:
1407 struct gl_pixelstore_attrib
*store
=
1408 (struct gl_pixelstore_attrib
*) node
->data
;
1409 copy_pixelstore(ctx
, &ctx
->Unpack
, store
);
1410 _mesa_reference_buffer_object(ctx
, &store
->BufferObj
, NULL
);
1412 ctx
->NewState
|= _NEW_PACKUNPACK
;
1414 case GL_CLIENT_VERTEX_ARRAY_BIT
: {
1415 struct gl_array_attrib
* data
=
1416 (struct gl_array_attrib
*) node
->data
;
1418 adjust_buffer_object_ref_counts(&ctx
->Array
, -1);
1420 ctx
->Array
.ActiveTexture
= data
->ActiveTexture
;
1421 if (data
->LockCount
!= 0)
1422 _mesa_LockArraysEXT(data
->LockFirst
, data
->LockCount
);
1423 else if (ctx
->Array
.LockCount
)
1424 _mesa_UnlockArraysEXT();
1426 _mesa_BindVertexArrayAPPLE( data
->ArrayObj
->Name
);
1428 #if FEATURE_ARB_vertex_buffer_object
1429 _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB
,
1430 data
->ArrayBufferObj
->Name
);
1431 _mesa_BindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB
,
1432 data
->ElementArrayBufferObj
->Name
);
1435 MEMCPY( ctx
->Array
.ArrayObj
, data
->ArrayObj
,
1436 sizeof( struct gl_array_object
) );
1438 FREE( data
->ArrayObj
);
1440 /* FIXME: Should some bits in ctx->Array->NewState also be set
1441 * FIXME: here? It seems like it should be set to inclusive-or
1442 * FIXME: of the old ArrayObj->_Enabled and the new _Enabled.
1445 ctx
->NewState
|= _NEW_ARRAY
;
1449 _mesa_problem( ctx
, "Bad attrib flag in PopClientAttrib");
1462 * Free any attribute state data that might be attached to the context.
1465 _mesa_free_attrib_data(GLcontext
*ctx
)
1467 while (ctx
->AttribStackDepth
> 0) {
1468 struct gl_attrib_node
*attr
, *next
;
1470 ctx
->AttribStackDepth
--;
1471 attr
= ctx
->AttribStack
[ctx
->AttribStackDepth
];
1474 if (attr
->kind
== GL_TEXTURE_BIT
) {
1475 struct texture_state
*texstate
= (struct texture_state
*)attr
->data
;
1477 /* clear references to the saved texture objects */
1478 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
1479 for (tgt
= 0; tgt
< NUM_TEXTURE_TARGETS
; tgt
++) {
1480 _mesa_reference_texobj(&texstate
->SavedTexRef
[u
][tgt
], NULL
);
1485 /* any other chunks of state that requires special handling? */
1489 _mesa_free(attr
->data
);
1497 void _mesa_init_attrib( GLcontext
*ctx
)
1499 /* Renderer and client attribute stacks */
1500 ctx
->AttribStackDepth
= 0;
1501 ctx
->ClientAttribStackDepth
= 0;