2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2006 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"
46 #include "simple_list.h"
51 #include "math/m_xform.h"
55 * Allocate a new attribute state node. These nodes have a
56 * "kind" value and a pointer to a struct of state data.
58 static struct gl_attrib_node
*
59 new_attrib_node( GLbitfield kind
)
61 struct gl_attrib_node
*an
= MALLOC_STRUCT(gl_attrib_node
);
70 _mesa_PushAttrib(GLbitfield mask
)
72 struct gl_attrib_node
*newnode
;
73 struct gl_attrib_node
*head
;
75 GET_CURRENT_CONTEXT(ctx
);
76 ASSERT_OUTSIDE_BEGIN_END(ctx
);
78 if (MESA_VERBOSE
& VERBOSE_API
)
79 _mesa_debug(ctx
, "glPushAttrib %x\n", (int) mask
);
81 if (ctx
->AttribStackDepth
>= MAX_ATTRIB_STACK_DEPTH
) {
82 _mesa_error( ctx
, GL_STACK_OVERFLOW
, "glPushAttrib" );
86 /* Build linked list of attribute nodes which save all attribute */
87 /* groups specified by the mask. */
90 if (mask
& GL_ACCUM_BUFFER_BIT
) {
91 struct gl_accum_attrib
*attr
;
92 attr
= MALLOC_STRUCT( gl_accum_attrib
);
93 MEMCPY( attr
, &ctx
->Accum
, sizeof(struct gl_accum_attrib
) );
94 newnode
= new_attrib_node( GL_ACCUM_BUFFER_BIT
);
100 if (mask
& GL_COLOR_BUFFER_BIT
) {
101 struct gl_colorbuffer_attrib
*attr
;
102 attr
= MALLOC_STRUCT( gl_colorbuffer_attrib
);
103 MEMCPY( attr
, &ctx
->Color
, sizeof(struct gl_colorbuffer_attrib
) );
104 newnode
= new_attrib_node( GL_COLOR_BUFFER_BIT
);
105 newnode
->data
= attr
;
106 newnode
->next
= head
;
110 if (mask
& GL_CURRENT_BIT
) {
111 struct gl_current_attrib
*attr
;
112 FLUSH_CURRENT( ctx
, 0 );
113 attr
= MALLOC_STRUCT( gl_current_attrib
);
114 MEMCPY( attr
, &ctx
->Current
, sizeof(struct gl_current_attrib
) );
115 newnode
= new_attrib_node( GL_CURRENT_BIT
);
116 newnode
->data
= attr
;
117 newnode
->next
= head
;
121 if (mask
& GL_DEPTH_BUFFER_BIT
) {
122 struct gl_depthbuffer_attrib
*attr
;
123 attr
= MALLOC_STRUCT( gl_depthbuffer_attrib
);
124 MEMCPY( attr
, &ctx
->Depth
, sizeof(struct gl_depthbuffer_attrib
) );
125 newnode
= new_attrib_node( GL_DEPTH_BUFFER_BIT
);
126 newnode
->data
= attr
;
127 newnode
->next
= head
;
131 if (mask
& GL_ENABLE_BIT
) {
132 struct gl_enable_attrib
*attr
;
134 attr
= MALLOC_STRUCT( gl_enable_attrib
);
135 /* Copy enable flags from all other attributes into the enable struct. */
136 attr
->AlphaTest
= ctx
->Color
.AlphaEnabled
;
137 attr
->AutoNormal
= ctx
->Eval
.AutoNormal
;
138 attr
->Blend
= ctx
->Color
.BlendEnabled
;
139 attr
->ClipPlanes
= ctx
->Transform
.ClipPlanesEnabled
;
140 attr
->ColorMaterial
= ctx
->Light
.ColorMaterialEnabled
;
141 attr
->ColorTable
= ctx
->Pixel
.ColorTableEnabled
;
142 attr
->PostColorMatrixColorTable
= ctx
->Pixel
.PostColorMatrixColorTableEnabled
;
143 attr
->PostConvolutionColorTable
= ctx
->Pixel
.PostConvolutionColorTableEnabled
;
144 attr
->Convolution1D
= ctx
->Pixel
.Convolution1DEnabled
;
145 attr
->Convolution2D
= ctx
->Pixel
.Convolution2DEnabled
;
146 attr
->Separable2D
= ctx
->Pixel
.Separable2DEnabled
;
147 attr
->CullFace
= ctx
->Polygon
.CullFlag
;
148 attr
->DepthTest
= ctx
->Depth
.Test
;
149 attr
->Dither
= ctx
->Color
.DitherFlag
;
150 attr
->Fog
= ctx
->Fog
.Enabled
;
151 for (i
= 0; i
< ctx
->Const
.MaxLights
; i
++) {
152 attr
->Light
[i
] = ctx
->Light
.Light
[i
].Enabled
;
154 attr
->Lighting
= ctx
->Light
.Enabled
;
155 attr
->LineSmooth
= ctx
->Line
.SmoothFlag
;
156 attr
->LineStipple
= ctx
->Line
.StippleFlag
;
157 attr
->Histogram
= ctx
->Pixel
.HistogramEnabled
;
158 attr
->MinMax
= ctx
->Pixel
.MinMaxEnabled
;
159 attr
->IndexLogicOp
= ctx
->Color
.IndexLogicOpEnabled
;
160 attr
->ColorLogicOp
= ctx
->Color
.ColorLogicOpEnabled
;
161 attr
->Map1Color4
= ctx
->Eval
.Map1Color4
;
162 attr
->Map1Index
= ctx
->Eval
.Map1Index
;
163 attr
->Map1Normal
= ctx
->Eval
.Map1Normal
;
164 attr
->Map1TextureCoord1
= ctx
->Eval
.Map1TextureCoord1
;
165 attr
->Map1TextureCoord2
= ctx
->Eval
.Map1TextureCoord2
;
166 attr
->Map1TextureCoord3
= ctx
->Eval
.Map1TextureCoord3
;
167 attr
->Map1TextureCoord4
= ctx
->Eval
.Map1TextureCoord4
;
168 attr
->Map1Vertex3
= ctx
->Eval
.Map1Vertex3
;
169 attr
->Map1Vertex4
= ctx
->Eval
.Map1Vertex4
;
170 MEMCPY(attr
->Map1Attrib
, ctx
->Eval
.Map1Attrib
, sizeof(ctx
->Eval
.Map1Attrib
));
171 attr
->Map2Color4
= ctx
->Eval
.Map2Color4
;
172 attr
->Map2Index
= ctx
->Eval
.Map2Index
;
173 attr
->Map2Normal
= ctx
->Eval
.Map2Normal
;
174 attr
->Map2TextureCoord1
= ctx
->Eval
.Map2TextureCoord1
;
175 attr
->Map2TextureCoord2
= ctx
->Eval
.Map2TextureCoord2
;
176 attr
->Map2TextureCoord3
= ctx
->Eval
.Map2TextureCoord3
;
177 attr
->Map2TextureCoord4
= ctx
->Eval
.Map2TextureCoord4
;
178 attr
->Map2Vertex3
= ctx
->Eval
.Map2Vertex3
;
179 attr
->Map2Vertex4
= ctx
->Eval
.Map2Vertex4
;
180 MEMCPY(attr
->Map2Attrib
, ctx
->Eval
.Map2Attrib
, sizeof(ctx
->Eval
.Map2Attrib
));
181 attr
->Normalize
= ctx
->Transform
.Normalize
;
182 attr
->RasterPositionUnclipped
= ctx
->Transform
.RasterPositionUnclipped
;
183 attr
->PointSmooth
= ctx
->Point
.SmoothFlag
;
184 attr
->PointSprite
= ctx
->Point
.PointSprite
;
185 attr
->PolygonOffsetPoint
= ctx
->Polygon
.OffsetPoint
;
186 attr
->PolygonOffsetLine
= ctx
->Polygon
.OffsetLine
;
187 attr
->PolygonOffsetFill
= ctx
->Polygon
.OffsetFill
;
188 attr
->PolygonSmooth
= ctx
->Polygon
.SmoothFlag
;
189 attr
->PolygonStipple
= ctx
->Polygon
.StippleFlag
;
190 attr
->RescaleNormals
= ctx
->Transform
.RescaleNormals
;
191 attr
->Scissor
= ctx
->Scissor
.Enabled
;
192 attr
->Stencil
= ctx
->Stencil
.Enabled
;
193 attr
->StencilTwoSide
= ctx
->Stencil
.TestTwoSide
;
194 attr
->MultisampleEnabled
= ctx
->Multisample
.Enabled
;
195 attr
->SampleAlphaToCoverage
= ctx
->Multisample
.SampleAlphaToCoverage
;
196 attr
->SampleAlphaToOne
= ctx
->Multisample
.SampleAlphaToOne
;
197 attr
->SampleCoverage
= ctx
->Multisample
.SampleCoverage
;
198 attr
->SampleCoverageInvert
= ctx
->Multisample
.SampleCoverageInvert
;
199 for (i
=0; i
<MAX_TEXTURE_UNITS
; i
++) {
200 attr
->Texture
[i
] = ctx
->Texture
.Unit
[i
].Enabled
;
201 attr
->TexGen
[i
] = ctx
->Texture
.Unit
[i
].TexGenEnabled
;
202 attr
->TextureColorTable
[i
] = ctx
->Texture
.Unit
[i
].ColorTableEnabled
;
204 /* GL_NV_vertex_program */
205 attr
->VertexProgram
= ctx
->VertexProgram
.Enabled
;
206 attr
->VertexProgramPointSize
= ctx
->VertexProgram
.PointSizeEnabled
;
207 attr
->VertexProgramTwoSide
= ctx
->VertexProgram
.TwoSideEnabled
;
208 newnode
= new_attrib_node( GL_ENABLE_BIT
);
209 newnode
->data
= attr
;
210 newnode
->next
= head
;
214 if (mask
& GL_EVAL_BIT
) {
215 struct gl_eval_attrib
*attr
;
216 attr
= MALLOC_STRUCT( gl_eval_attrib
);
217 MEMCPY( attr
, &ctx
->Eval
, sizeof(struct gl_eval_attrib
) );
218 newnode
= new_attrib_node( GL_EVAL_BIT
);
219 newnode
->data
= attr
;
220 newnode
->next
= head
;
224 if (mask
& GL_FOG_BIT
) {
225 struct gl_fog_attrib
*attr
;
226 attr
= MALLOC_STRUCT( gl_fog_attrib
);
227 MEMCPY( attr
, &ctx
->Fog
, sizeof(struct gl_fog_attrib
) );
228 newnode
= new_attrib_node( GL_FOG_BIT
);
229 newnode
->data
= attr
;
230 newnode
->next
= head
;
234 if (mask
& GL_HINT_BIT
) {
235 struct gl_hint_attrib
*attr
;
236 attr
= MALLOC_STRUCT( gl_hint_attrib
);
237 MEMCPY( attr
, &ctx
->Hint
, sizeof(struct gl_hint_attrib
) );
238 newnode
= new_attrib_node( GL_HINT_BIT
);
239 newnode
->data
= attr
;
240 newnode
->next
= head
;
244 if (mask
& GL_LIGHTING_BIT
) {
245 struct gl_light_attrib
*attr
;
246 FLUSH_CURRENT(ctx
, 0); /* flush material changes */
247 attr
= MALLOC_STRUCT( gl_light_attrib
);
248 MEMCPY( attr
, &ctx
->Light
, sizeof(struct gl_light_attrib
) );
249 newnode
= new_attrib_node( GL_LIGHTING_BIT
);
250 newnode
->data
= attr
;
251 newnode
->next
= head
;
255 if (mask
& GL_LINE_BIT
) {
256 struct gl_line_attrib
*attr
;
257 attr
= MALLOC_STRUCT( gl_line_attrib
);
258 MEMCPY( attr
, &ctx
->Line
, sizeof(struct gl_line_attrib
) );
259 newnode
= new_attrib_node( GL_LINE_BIT
);
260 newnode
->data
= attr
;
261 newnode
->next
= head
;
265 if (mask
& GL_LIST_BIT
) {
266 struct gl_list_attrib
*attr
;
267 attr
= MALLOC_STRUCT( gl_list_attrib
);
268 MEMCPY( attr
, &ctx
->List
, sizeof(struct gl_list_attrib
) );
269 newnode
= new_attrib_node( GL_LIST_BIT
);
270 newnode
->data
= attr
;
271 newnode
->next
= head
;
275 if (mask
& GL_PIXEL_MODE_BIT
) {
276 struct gl_pixel_attrib
*attr
;
277 attr
= MALLOC_STRUCT( gl_pixel_attrib
);
278 MEMCPY( attr
, &ctx
->Pixel
, sizeof(struct gl_pixel_attrib
) );
279 /* push the Read FBO's ReadBuffer state, not ctx->Pixel.ReadBuffer */
280 attr
->ReadBuffer
= ctx
->ReadBuffer
->ColorReadBuffer
;
281 newnode
= new_attrib_node( GL_PIXEL_MODE_BIT
);
282 newnode
->data
= attr
;
283 newnode
->next
= head
;
287 if (mask
& GL_POINT_BIT
) {
288 struct gl_point_attrib
*attr
;
289 attr
= MALLOC_STRUCT( gl_point_attrib
);
290 MEMCPY( attr
, &ctx
->Point
, sizeof(struct gl_point_attrib
) );
291 newnode
= new_attrib_node( GL_POINT_BIT
);
292 newnode
->data
= attr
;
293 newnode
->next
= head
;
297 if (mask
& GL_POLYGON_BIT
) {
298 struct gl_polygon_attrib
*attr
;
299 attr
= MALLOC_STRUCT( gl_polygon_attrib
);
300 MEMCPY( attr
, &ctx
->Polygon
, sizeof(struct gl_polygon_attrib
) );
301 newnode
= new_attrib_node( GL_POLYGON_BIT
);
302 newnode
->data
= attr
;
303 newnode
->next
= head
;
307 if (mask
& GL_POLYGON_STIPPLE_BIT
) {
309 stipple
= (GLuint
*) MALLOC( 32*sizeof(GLuint
) );
310 MEMCPY( stipple
, ctx
->PolygonStipple
, 32*sizeof(GLuint
) );
311 newnode
= new_attrib_node( GL_POLYGON_STIPPLE_BIT
);
312 newnode
->data
= stipple
;
313 newnode
->next
= head
;
317 if (mask
& GL_SCISSOR_BIT
) {
318 struct gl_scissor_attrib
*attr
;
319 attr
= MALLOC_STRUCT( gl_scissor_attrib
);
320 MEMCPY( attr
, &ctx
->Scissor
, sizeof(struct gl_scissor_attrib
) );
321 newnode
= new_attrib_node( GL_SCISSOR_BIT
);
322 newnode
->data
= attr
;
323 newnode
->next
= head
;
327 if (mask
& GL_STENCIL_BUFFER_BIT
) {
328 struct gl_stencil_attrib
*attr
;
329 attr
= MALLOC_STRUCT( gl_stencil_attrib
);
330 MEMCPY( attr
, &ctx
->Stencil
, sizeof(struct gl_stencil_attrib
) );
331 newnode
= new_attrib_node( GL_STENCIL_BUFFER_BIT
);
332 newnode
->data
= attr
;
333 newnode
->next
= head
;
337 if (mask
& GL_TEXTURE_BIT
) {
338 struct gl_texture_attrib
*attr
;
341 _mesa_lock_context_textures(ctx
);
342 /* Bump the texture object reference counts so that they don't
343 * inadvertantly get deleted.
345 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
346 ctx
->Texture
.Unit
[u
].Current1D
->RefCount
++;
347 ctx
->Texture
.Unit
[u
].Current2D
->RefCount
++;
348 ctx
->Texture
.Unit
[u
].Current3D
->RefCount
++;
349 ctx
->Texture
.Unit
[u
].CurrentCubeMap
->RefCount
++;
350 ctx
->Texture
.Unit
[u
].CurrentRect
->RefCount
++;
352 attr
= MALLOC_STRUCT( gl_texture_attrib
);
353 MEMCPY( attr
, &ctx
->Texture
, sizeof(struct gl_texture_attrib
) );
354 /* copy state of the currently bound texture objects */
355 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
356 _mesa_copy_texture_object(&attr
->Unit
[u
].Saved1D
,
357 attr
->Unit
[u
].Current1D
);
358 _mesa_copy_texture_object(&attr
->Unit
[u
].Saved2D
,
359 attr
->Unit
[u
].Current2D
);
360 _mesa_copy_texture_object(&attr
->Unit
[u
].Saved3D
,
361 attr
->Unit
[u
].Current3D
);
362 _mesa_copy_texture_object(&attr
->Unit
[u
].SavedCubeMap
,
363 attr
->Unit
[u
].CurrentCubeMap
);
364 _mesa_copy_texture_object(&attr
->Unit
[u
].SavedRect
,
365 attr
->Unit
[u
].CurrentRect
);
368 _mesa_unlock_context_textures(ctx
);
370 newnode
= new_attrib_node( GL_TEXTURE_BIT
);
371 newnode
->data
= attr
;
372 newnode
->next
= head
;
376 if (mask
& GL_TRANSFORM_BIT
) {
377 struct gl_transform_attrib
*attr
;
378 attr
= MALLOC_STRUCT( gl_transform_attrib
);
379 MEMCPY( attr
, &ctx
->Transform
, sizeof(struct gl_transform_attrib
) );
380 newnode
= new_attrib_node( GL_TRANSFORM_BIT
);
381 newnode
->data
= attr
;
382 newnode
->next
= head
;
386 if (mask
& GL_VIEWPORT_BIT
) {
387 struct gl_viewport_attrib
*attr
;
388 attr
= MALLOC_STRUCT( gl_viewport_attrib
);
389 MEMCPY( attr
, &ctx
->Viewport
, sizeof(struct gl_viewport_attrib
) );
390 newnode
= new_attrib_node( GL_VIEWPORT_BIT
);
391 newnode
->data
= attr
;
392 newnode
->next
= head
;
396 /* GL_ARB_multisample */
397 if (mask
& GL_MULTISAMPLE_BIT_ARB
) {
398 struct gl_multisample_attrib
*attr
;
399 attr
= MALLOC_STRUCT( gl_multisample_attrib
);
400 MEMCPY( attr
, &ctx
->Multisample
, sizeof(struct gl_multisample_attrib
) );
401 newnode
= new_attrib_node( GL_MULTISAMPLE_BIT_ARB
);
402 newnode
->data
= attr
;
403 newnode
->next
= head
;
407 ctx
->AttribStack
[ctx
->AttribStackDepth
] = head
;
408 ctx
->AttribStackDepth
++;
414 pop_enable_group(GLcontext
*ctx
, const struct gl_enable_attrib
*enable
)
418 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM) \
419 if ((VALUE) != (NEWVALUE)) { \
420 _mesa_set_enable( ctx, ENUM, (NEWVALUE) ); \
423 TEST_AND_UPDATE(ctx
->Color
.AlphaEnabled
, enable
->AlphaTest
, GL_ALPHA_TEST
);
424 TEST_AND_UPDATE(ctx
->Color
.BlendEnabled
, enable
->Blend
, GL_BLEND
);
426 for (i
=0;i
<MAX_CLIP_PLANES
;i
++) {
427 const GLuint mask
= 1 << i
;
428 if ((ctx
->Transform
.ClipPlanesEnabled
& mask
) != (enable
->ClipPlanes
& mask
))
429 _mesa_set_enable(ctx
, (GLenum
) (GL_CLIP_PLANE0
+ i
),
430 (GLboolean
) ((enable
->ClipPlanes
& mask
) ? GL_TRUE
: GL_FALSE
));
433 TEST_AND_UPDATE(ctx
->Light
.ColorMaterialEnabled
, enable
->ColorMaterial
,
435 TEST_AND_UPDATE(ctx
->Pixel
.ColorTableEnabled
, enable
->ColorTable
,
437 TEST_AND_UPDATE(ctx
->Pixel
.PostColorMatrixColorTableEnabled
,
438 enable
->PostColorMatrixColorTable
,
439 GL_POST_COLOR_MATRIX_COLOR_TABLE
);
440 TEST_AND_UPDATE(ctx
->Pixel
.PostConvolutionColorTableEnabled
,
441 enable
->PostConvolutionColorTable
,
442 GL_POST_CONVOLUTION_COLOR_TABLE
);
443 TEST_AND_UPDATE(ctx
->Polygon
.CullFlag
, enable
->CullFace
, GL_CULL_FACE
);
444 TEST_AND_UPDATE(ctx
->Depth
.Test
, enable
->DepthTest
, GL_DEPTH_TEST
);
445 TEST_AND_UPDATE(ctx
->Color
.DitherFlag
, enable
->Dither
, GL_DITHER
);
446 TEST_AND_UPDATE(ctx
->Pixel
.Convolution1DEnabled
, enable
->Convolution1D
,
448 TEST_AND_UPDATE(ctx
->Pixel
.Convolution2DEnabled
, enable
->Convolution2D
,
450 TEST_AND_UPDATE(ctx
->Pixel
.Separable2DEnabled
, enable
->Separable2D
,
452 TEST_AND_UPDATE(ctx
->Fog
.Enabled
, enable
->Fog
, GL_FOG
);
453 TEST_AND_UPDATE(ctx
->Light
.Enabled
, enable
->Lighting
, GL_LIGHTING
);
454 TEST_AND_UPDATE(ctx
->Line
.SmoothFlag
, enable
->LineSmooth
, GL_LINE_SMOOTH
);
455 TEST_AND_UPDATE(ctx
->Line
.StippleFlag
, enable
->LineStipple
,
457 TEST_AND_UPDATE(ctx
->Color
.IndexLogicOpEnabled
, enable
->IndexLogicOp
,
459 TEST_AND_UPDATE(ctx
->Color
.ColorLogicOpEnabled
, enable
->ColorLogicOp
,
462 TEST_AND_UPDATE(ctx
->Eval
.Map1Color4
, enable
->Map1Color4
, GL_MAP1_COLOR_4
);
463 TEST_AND_UPDATE(ctx
->Eval
.Map1Index
, enable
->Map1Index
, GL_MAP1_INDEX
);
464 TEST_AND_UPDATE(ctx
->Eval
.Map1Normal
, enable
->Map1Normal
, GL_MAP1_NORMAL
);
465 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord1
, enable
->Map1TextureCoord1
,
466 GL_MAP1_TEXTURE_COORD_1
);
467 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord2
, enable
->Map1TextureCoord2
,
468 GL_MAP1_TEXTURE_COORD_2
);
469 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord3
, enable
->Map1TextureCoord3
,
470 GL_MAP1_TEXTURE_COORD_3
);
471 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord4
, enable
->Map1TextureCoord4
,
472 GL_MAP1_TEXTURE_COORD_4
);
473 TEST_AND_UPDATE(ctx
->Eval
.Map1Vertex3
, enable
->Map1Vertex3
,
475 TEST_AND_UPDATE(ctx
->Eval
.Map1Vertex4
, enable
->Map1Vertex4
,
477 for (i
= 0; i
< 16; i
++) {
478 TEST_AND_UPDATE(ctx
->Eval
.Map1Attrib
[i
], enable
->Map1Attrib
[i
],
479 GL_MAP1_VERTEX_ATTRIB0_4_NV
+ i
);
482 TEST_AND_UPDATE(ctx
->Eval
.Map2Color4
, enable
->Map2Color4
, GL_MAP2_COLOR_4
);
483 TEST_AND_UPDATE(ctx
->Eval
.Map2Index
, enable
->Map2Index
, GL_MAP2_INDEX
);
484 TEST_AND_UPDATE(ctx
->Eval
.Map2Normal
, enable
->Map2Normal
, GL_MAP2_NORMAL
);
485 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord1
, enable
->Map2TextureCoord1
,
486 GL_MAP2_TEXTURE_COORD_1
);
487 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord2
, enable
->Map2TextureCoord2
,
488 GL_MAP2_TEXTURE_COORD_2
);
489 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord3
, enable
->Map2TextureCoord3
,
490 GL_MAP2_TEXTURE_COORD_3
);
491 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord4
, enable
->Map2TextureCoord4
,
492 GL_MAP2_TEXTURE_COORD_4
);
493 TEST_AND_UPDATE(ctx
->Eval
.Map2Vertex3
, enable
->Map2Vertex3
,
495 TEST_AND_UPDATE(ctx
->Eval
.Map2Vertex4
, enable
->Map2Vertex4
,
497 for (i
= 0; i
< 16; i
++) {
498 TEST_AND_UPDATE(ctx
->Eval
.Map2Attrib
[i
], enable
->Map2Attrib
[i
],
499 GL_MAP2_VERTEX_ATTRIB0_4_NV
+ i
);
502 TEST_AND_UPDATE(ctx
->Eval
.AutoNormal
, enable
->AutoNormal
, GL_AUTO_NORMAL
);
503 TEST_AND_UPDATE(ctx
->Transform
.Normalize
, enable
->Normalize
, GL_NORMALIZE
);
504 TEST_AND_UPDATE(ctx
->Transform
.RescaleNormals
, enable
->RescaleNormals
,
505 GL_RESCALE_NORMAL_EXT
);
506 TEST_AND_UPDATE(ctx
->Transform
.RasterPositionUnclipped
,
507 enable
->RasterPositionUnclipped
,
508 GL_RASTER_POSITION_UNCLIPPED_IBM
);
509 TEST_AND_UPDATE(ctx
->Point
.SmoothFlag
, enable
->PointSmooth
,
511 if (ctx
->Extensions
.NV_point_sprite
|| ctx
->Extensions
.ARB_point_sprite
) {
512 TEST_AND_UPDATE(ctx
->Point
.PointSprite
, enable
->PointSprite
,
515 TEST_AND_UPDATE(ctx
->Polygon
.OffsetPoint
, enable
->PolygonOffsetPoint
,
516 GL_POLYGON_OFFSET_POINT
);
517 TEST_AND_UPDATE(ctx
->Polygon
.OffsetLine
, enable
->PolygonOffsetLine
,
518 GL_POLYGON_OFFSET_LINE
);
519 TEST_AND_UPDATE(ctx
->Polygon
.OffsetFill
, enable
->PolygonOffsetFill
,
520 GL_POLYGON_OFFSET_FILL
);
521 TEST_AND_UPDATE(ctx
->Polygon
.SmoothFlag
, enable
->PolygonSmooth
,
523 TEST_AND_UPDATE(ctx
->Polygon
.StippleFlag
, enable
->PolygonStipple
,
525 TEST_AND_UPDATE(ctx
->Scissor
.Enabled
, enable
->Scissor
, GL_SCISSOR_TEST
);
526 TEST_AND_UPDATE(ctx
->Stencil
.Enabled
, enable
->Stencil
, GL_STENCIL_TEST
);
527 if (ctx
->Extensions
.EXT_stencil_two_side
) {
528 TEST_AND_UPDATE(ctx
->Stencil
.TestTwoSide
, enable
->StencilTwoSide
, GL_STENCIL_TEST_TWO_SIDE_EXT
);
530 TEST_AND_UPDATE(ctx
->Multisample
.Enabled
, enable
->MultisampleEnabled
,
532 TEST_AND_UPDATE(ctx
->Multisample
.SampleAlphaToCoverage
,
533 enable
->SampleAlphaToCoverage
,
534 GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
);
535 TEST_AND_UPDATE(ctx
->Multisample
.SampleAlphaToOne
,
536 enable
->SampleAlphaToOne
,
537 GL_SAMPLE_ALPHA_TO_ONE_ARB
);
538 TEST_AND_UPDATE(ctx
->Multisample
.SampleCoverage
,
539 enable
->SampleCoverage
,
540 GL_SAMPLE_COVERAGE_ARB
);
541 TEST_AND_UPDATE(ctx
->Multisample
.SampleCoverageInvert
,
542 enable
->SampleCoverageInvert
,
543 GL_SAMPLE_COVERAGE_INVERT_ARB
);
544 /* GL_ARB_vertex_program, GL_NV_vertex_program */
545 TEST_AND_UPDATE(ctx
->VertexProgram
.Enabled
,
546 enable
->VertexProgram
,
547 GL_VERTEX_PROGRAM_ARB
);
548 TEST_AND_UPDATE(ctx
->VertexProgram
.PointSizeEnabled
,
549 enable
->VertexProgramPointSize
,
550 GL_VERTEX_PROGRAM_POINT_SIZE_ARB
);
551 TEST_AND_UPDATE(ctx
->VertexProgram
.TwoSideEnabled
,
552 enable
->VertexProgramTwoSide
,
553 GL_VERTEX_PROGRAM_TWO_SIDE_ARB
);
555 #undef TEST_AND_UPDATE
557 /* texture unit enables */
558 for (i
= 0; i
< ctx
->Const
.MaxTextureUnits
; i
++) {
559 if (ctx
->Texture
.Unit
[i
].Enabled
!= enable
->Texture
[i
]) {
560 ctx
->Texture
.Unit
[i
].Enabled
= enable
->Texture
[i
];
561 if (ctx
->Driver
.Enable
) {
562 if (ctx
->Driver
.ActiveTexture
) {
563 (*ctx
->Driver
.ActiveTexture
)(ctx
, i
);
565 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_1D
,
566 (GLboolean
) (enable
->Texture
[i
] & TEXTURE_1D_BIT
) );
567 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_2D
,
568 (GLboolean
) (enable
->Texture
[i
] & TEXTURE_2D_BIT
) );
569 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_3D
,
570 (GLboolean
) (enable
->Texture
[i
] & TEXTURE_3D_BIT
) );
571 if (ctx
->Extensions
.ARB_texture_cube_map
)
572 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_CUBE_MAP_ARB
,
573 (GLboolean
) (enable
->Texture
[i
] & TEXTURE_CUBE_BIT
) );
574 if (ctx
->Extensions
.NV_texture_rectangle
)
575 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_RECTANGLE_NV
,
576 (GLboolean
) (enable
->Texture
[i
] & TEXTURE_RECT_BIT
) );
580 if (ctx
->Texture
.Unit
[i
].TexGenEnabled
!= enable
->TexGen
[i
]) {
581 ctx
->Texture
.Unit
[i
].TexGenEnabled
= enable
->TexGen
[i
];
582 if (ctx
->Driver
.Enable
) {
583 if (ctx
->Driver
.ActiveTexture
) {
584 (*ctx
->Driver
.ActiveTexture
)(ctx
, i
);
586 if (enable
->TexGen
[i
] & S_BIT
)
587 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_S
, GL_TRUE
);
589 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_S
, GL_FALSE
);
590 if (enable
->TexGen
[i
] & T_BIT
)
591 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_T
, GL_TRUE
);
593 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_T
, GL_FALSE
);
594 if (enable
->TexGen
[i
] & R_BIT
)
595 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_R
, GL_TRUE
);
597 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_R
, GL_FALSE
);
598 if (enable
->TexGen
[i
] & Q_BIT
)
599 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_Q
, GL_TRUE
);
601 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_Q
, GL_FALSE
);
605 /* GL_SGI_texture_color_table */
606 ctx
->Texture
.Unit
[i
].ColorTableEnabled
= enable
->TextureColorTable
[i
];
609 if (ctx
->Driver
.ActiveTexture
) {
610 (*ctx
->Driver
.ActiveTexture
)(ctx
, ctx
->Texture
.CurrentUnit
);
616 pop_texture_group(GLcontext
*ctx
, const struct gl_texture_attrib
*texAttrib
)
620 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
621 const struct gl_texture_unit
*unit
= &texAttrib
->Unit
[u
];
624 _mesa_ActiveTextureARB(GL_TEXTURE0_ARB
+ u
);
625 _mesa_set_enable(ctx
, GL_TEXTURE_1D
,
626 (unit
->Enabled
& TEXTURE_1D_BIT
) ? GL_TRUE
: GL_FALSE
);
627 _mesa_set_enable(ctx
, GL_TEXTURE_2D
,
628 (unit
->Enabled
& TEXTURE_2D_BIT
) ? GL_TRUE
: GL_FALSE
);
629 _mesa_set_enable(ctx
, GL_TEXTURE_3D
,
630 (unit
->Enabled
& TEXTURE_3D_BIT
) ? GL_TRUE
: GL_FALSE
);
631 if (ctx
->Extensions
.ARB_texture_cube_map
) {
632 _mesa_set_enable(ctx
, GL_TEXTURE_CUBE_MAP_ARB
,
633 (unit
->Enabled
& TEXTURE_CUBE_BIT
) ? GL_TRUE
: GL_FALSE
);
635 if (ctx
->Extensions
.NV_texture_rectangle
) {
636 _mesa_set_enable(ctx
, GL_TEXTURE_RECTANGLE_NV
,
637 (unit
->Enabled
& TEXTURE_RECT_BIT
) ? GL_TRUE
: GL_FALSE
);
639 if (ctx
->Extensions
.SGI_texture_color_table
) {
640 _mesa_set_enable(ctx
, GL_TEXTURE_COLOR_TABLE_SGI
,
641 unit
->ColorTableEnabled
);
643 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_TEXTURE_ENV_MODE
, unit
->EnvMode
);
644 _mesa_TexEnvfv(GL_TEXTURE_ENV
, GL_TEXTURE_ENV_COLOR
, unit
->EnvColor
);
645 _mesa_TexGeni(GL_S
, GL_TEXTURE_GEN_MODE
, unit
->GenModeS
);
646 _mesa_TexGeni(GL_T
, GL_TEXTURE_GEN_MODE
, unit
->GenModeT
);
647 _mesa_TexGeni(GL_R
, GL_TEXTURE_GEN_MODE
, unit
->GenModeR
);
648 _mesa_TexGeni(GL_Q
, GL_TEXTURE_GEN_MODE
, unit
->GenModeQ
);
649 _mesa_TexGenfv(GL_S
, GL_OBJECT_PLANE
, unit
->ObjectPlaneS
);
650 _mesa_TexGenfv(GL_T
, GL_OBJECT_PLANE
, unit
->ObjectPlaneT
);
651 _mesa_TexGenfv(GL_R
, GL_OBJECT_PLANE
, unit
->ObjectPlaneR
);
652 _mesa_TexGenfv(GL_Q
, GL_OBJECT_PLANE
, unit
->ObjectPlaneQ
);
653 /* Eye plane done differently to avoid re-transformation */
655 struct gl_texture_unit
*destUnit
= &ctx
->Texture
.Unit
[u
];
656 COPY_4FV(destUnit
->EyePlaneS
, unit
->EyePlaneS
);
657 COPY_4FV(destUnit
->EyePlaneT
, unit
->EyePlaneT
);
658 COPY_4FV(destUnit
->EyePlaneR
, unit
->EyePlaneR
);
659 COPY_4FV(destUnit
->EyePlaneQ
, unit
->EyePlaneQ
);
660 if (ctx
->Driver
.TexGen
) {
661 ctx
->Driver
.TexGen(ctx
, GL_S
, GL_EYE_PLANE
, unit
->EyePlaneS
);
662 ctx
->Driver
.TexGen(ctx
, GL_T
, GL_EYE_PLANE
, unit
->EyePlaneT
);
663 ctx
->Driver
.TexGen(ctx
, GL_R
, GL_EYE_PLANE
, unit
->EyePlaneR
);
664 ctx
->Driver
.TexGen(ctx
, GL_Q
, GL_EYE_PLANE
, unit
->EyePlaneQ
);
667 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_S
,
668 ((unit
->TexGenEnabled
& S_BIT
) ? GL_TRUE
: GL_FALSE
));
669 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_T
,
670 ((unit
->TexGenEnabled
& T_BIT
) ? GL_TRUE
: GL_FALSE
));
671 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_R
,
672 ((unit
->TexGenEnabled
& R_BIT
) ? GL_TRUE
: GL_FALSE
));
673 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_Q
,
674 ((unit
->TexGenEnabled
& Q_BIT
) ? GL_TRUE
: GL_FALSE
));
675 if (ctx
->Extensions
.EXT_texture_lod_bias
) {
676 _mesa_TexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT
,
677 GL_TEXTURE_LOD_BIAS_EXT
, unit
->LodBias
);
679 if (ctx
->Extensions
.EXT_texture_env_combine
||
680 ctx
->Extensions
.ARB_texture_env_combine
) {
681 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_COMBINE_RGB
,
682 unit
->Combine
.ModeRGB
);
683 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_COMBINE_ALPHA
,
684 unit
->Combine
.ModeA
);
685 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE0_RGB
,
686 unit
->Combine
.SourceRGB
[0]);
687 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE1_RGB
,
688 unit
->Combine
.SourceRGB
[1]);
689 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE2_RGB
,
690 unit
->Combine
.SourceRGB
[2]);
691 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE0_ALPHA
,
692 unit
->Combine
.SourceA
[0]);
693 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE1_ALPHA
,
694 unit
->Combine
.SourceA
[1]);
695 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE2_ALPHA
,
696 unit
->Combine
.SourceA
[2]);
697 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND0_RGB
,
698 unit
->Combine
.OperandRGB
[0]);
699 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND1_RGB
,
700 unit
->Combine
.OperandRGB
[1]);
701 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND2_RGB
,
702 unit
->Combine
.OperandRGB
[2]);
703 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND0_ALPHA
,
704 unit
->Combine
.OperandA
[0]);
705 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND1_ALPHA
,
706 unit
->Combine
.OperandA
[1]);
707 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND2_ALPHA
,
708 unit
->Combine
.OperandA
[2]);
709 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_RGB_SCALE
,
710 1 << unit
->Combine
.ScaleShiftRGB
);
711 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_ALPHA_SCALE
,
712 1 << unit
->Combine
.ScaleShiftA
);
715 /* Restore texture object state */
716 for (i
= 0; i
< NUM_TEXTURE_TARGETS
; i
++) {
718 const struct gl_texture_object
*obj
= NULL
;
719 GLfloat bordColor
[4];
723 target
= GL_TEXTURE_1D
;
724 obj
= &unit
->Saved1D
;
727 target
= GL_TEXTURE_2D
;
728 obj
= &unit
->Saved2D
;
731 target
= GL_TEXTURE_3D
;
732 obj
= &unit
->Saved3D
;
735 if (!ctx
->Extensions
.ARB_texture_cube_map
)
737 target
= GL_TEXTURE_CUBE_MAP_ARB
;
738 obj
= &unit
->SavedCubeMap
;
741 if (!ctx
->Extensions
.NV_texture_rectangle
)
743 target
= GL_TEXTURE_RECTANGLE_NV
;
744 obj
= &unit
->SavedRect
;
747 ; /* silence warnings */
750 _mesa_BindTexture(target
, obj
->Name
);
752 bordColor
[0] = CHAN_TO_FLOAT(obj
->BorderColor
[0]);
753 bordColor
[1] = CHAN_TO_FLOAT(obj
->BorderColor
[1]);
754 bordColor
[2] = CHAN_TO_FLOAT(obj
->BorderColor
[2]);
755 bordColor
[3] = CHAN_TO_FLOAT(obj
->BorderColor
[3]);
757 _mesa_TexParameterf(target
, GL_TEXTURE_PRIORITY
, obj
->Priority
);
758 _mesa_TexParameterfv(target
, GL_TEXTURE_BORDER_COLOR
, bordColor
);
759 _mesa_TexParameteri(target
, GL_TEXTURE_WRAP_S
, obj
->WrapS
);
760 _mesa_TexParameteri(target
, GL_TEXTURE_WRAP_T
, obj
->WrapT
);
761 _mesa_TexParameteri(target
, GL_TEXTURE_WRAP_R
, obj
->WrapR
);
762 _mesa_TexParameteri(target
, GL_TEXTURE_MIN_FILTER
, obj
->MinFilter
);
763 _mesa_TexParameteri(target
, GL_TEXTURE_MAG_FILTER
, obj
->MagFilter
);
764 _mesa_TexParameterf(target
, GL_TEXTURE_MIN_LOD
, obj
->MinLod
);
765 _mesa_TexParameterf(target
, GL_TEXTURE_MAX_LOD
, obj
->MaxLod
);
766 _mesa_TexParameteri(target
, GL_TEXTURE_BASE_LEVEL
, obj
->BaseLevel
);
767 _mesa_TexParameteri(target
, GL_TEXTURE_MAX_LEVEL
, obj
->MaxLevel
);
768 if (ctx
->Extensions
.EXT_texture_filter_anisotropic
) {
769 _mesa_TexParameterf(target
, GL_TEXTURE_MAX_ANISOTROPY_EXT
,
772 if (ctx
->Extensions
.SGIX_shadow
) {
773 _mesa_TexParameteri(target
, GL_TEXTURE_COMPARE_SGIX
,
775 _mesa_TexParameteri(target
, GL_TEXTURE_COMPARE_OPERATOR_SGIX
,
776 obj
->CompareOperator
);
778 if (ctx
->Extensions
.SGIX_shadow_ambient
) {
779 _mesa_TexParameterf(target
, GL_SHADOW_AMBIENT_SGIX
,
785 _mesa_ActiveTextureARB(GL_TEXTURE0_ARB
786 + texAttrib
->CurrentUnit
);
788 /* "un-bump" the texture object reference counts. We did that so they
789 * wouldn't inadvertantly get deleted while they were still referenced
790 * inside the attribute state stack.
792 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
793 ctx
->Texture
.Unit
[u
].Current1D
->RefCount
--;
794 ctx
->Texture
.Unit
[u
].Current2D
->RefCount
--;
795 ctx
->Texture
.Unit
[u
].Current3D
->RefCount
--;
796 ctx
->Texture
.Unit
[u
].CurrentCubeMap
->RefCount
--;
797 ctx
->Texture
.Unit
[u
].CurrentRect
->RefCount
--;
803 * This function is kind of long just because we have to call a lot
804 * of device driver functions to update device driver state.
806 * XXX As it is now, most of the pop-code calls immediate-mode Mesa functions
807 * in order to restore GL state. This isn't terribly efficient but it
808 * ensures that dirty flags and any derived state gets updated correctly.
809 * We could at least check if the value to restore equals the current value
810 * and then skip the Mesa call.
813 _mesa_PopAttrib(void)
815 struct gl_attrib_node
*attr
, *next
;
816 GET_CURRENT_CONTEXT(ctx
);
817 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
819 if (ctx
->AttribStackDepth
== 0) {
820 _mesa_error( ctx
, GL_STACK_UNDERFLOW
, "glPopAttrib" );
824 ctx
->AttribStackDepth
--;
825 attr
= ctx
->AttribStack
[ctx
->AttribStackDepth
];
829 if (MESA_VERBOSE
& VERBOSE_API
) {
830 _mesa_debug(ctx
, "glPopAttrib %s\n",
831 _mesa_lookup_enum_by_nr(attr
->kind
));
834 switch (attr
->kind
) {
835 case GL_ACCUM_BUFFER_BIT
:
837 const struct gl_accum_attrib
*accum
;
838 accum
= (const struct gl_accum_attrib
*) attr
->data
;
839 _mesa_ClearAccum(accum
->ClearColor
[0],
840 accum
->ClearColor
[1],
841 accum
->ClearColor
[2],
842 accum
->ClearColor
[3]);
845 case GL_COLOR_BUFFER_BIT
:
847 const struct gl_colorbuffer_attrib
*color
;
848 color
= (const struct gl_colorbuffer_attrib
*) attr
->data
;
849 _mesa_ClearIndex((GLfloat
) color
->ClearIndex
);
850 _mesa_ClearColor(color
->ClearColor
[0],
851 color
->ClearColor
[1],
852 color
->ClearColor
[2],
853 color
->ClearColor
[3]);
854 _mesa_IndexMask(color
->IndexMask
);
855 _mesa_ColorMask((GLboolean
) (color
->ColorMask
[0] != 0),
856 (GLboolean
) (color
->ColorMask
[1] != 0),
857 (GLboolean
) (color
->ColorMask
[2] != 0),
858 (GLboolean
) (color
->ColorMask
[3] != 0));
860 /* Need to determine if more than one color output is
861 * specified. If so, call glDrawBuffersARB, else call
862 * glDrawBuffer(). This is a subtle, but essential point
863 * since GL_FRONT (for example) is illegal for the former
864 * function, but legal for the later.
866 GLboolean multipleBuffers
= GL_FALSE
;
867 if (ctx
->Extensions
.ARB_draw_buffers
) {
869 for (i
= 1; i
< ctx
->Const
.MaxDrawBuffers
; i
++) {
870 if (color
->DrawBuffer
[i
] != GL_NONE
) {
871 multipleBuffers
= GL_TRUE
;
876 /* Call the API_level functions, not _mesa_drawbuffers()
877 * since we need to do error checking on the pop'd
879 * Ex: if GL_FRONT were pushed, but we're popping with a
880 * user FBO bound, GL_FRONT will be illegal and we'll need
881 * to record that error. Per OpenGL ARB decision.
884 _mesa_DrawBuffersARB(ctx
->Const
.MaxDrawBuffers
,
887 _mesa_DrawBuffer(color
->DrawBuffer
[0]);
889 _mesa_set_enable(ctx
, GL_ALPHA_TEST
, color
->AlphaEnabled
);
890 _mesa_AlphaFunc(color
->AlphaFunc
, color
->AlphaRef
);
891 _mesa_set_enable(ctx
, GL_BLEND
, color
->BlendEnabled
);
892 _mesa_BlendFuncSeparateEXT(color
->BlendSrcRGB
,
896 /* This special case is because glBlendEquationSeparateEXT
897 * cannot take GL_LOGIC_OP as a parameter.
899 if ( color
->BlendEquationRGB
== color
->BlendEquationA
) {
900 _mesa_BlendEquation(color
->BlendEquationRGB
);
903 _mesa_BlendEquationSeparateEXT(color
->BlendEquationRGB
,
904 color
->BlendEquationA
);
906 _mesa_BlendColor(color
->BlendColor
[0],
907 color
->BlendColor
[1],
908 color
->BlendColor
[2],
909 color
->BlendColor
[3]);
910 _mesa_LogicOp(color
->LogicOp
);
911 _mesa_set_enable(ctx
, GL_COLOR_LOGIC_OP
,
912 color
->ColorLogicOpEnabled
);
913 _mesa_set_enable(ctx
, GL_INDEX_LOGIC_OP
,
914 color
->IndexLogicOpEnabled
);
915 _mesa_set_enable(ctx
, GL_DITHER
, color
->DitherFlag
);
919 FLUSH_CURRENT( ctx
, 0 );
920 MEMCPY( &ctx
->Current
, attr
->data
,
921 sizeof(struct gl_current_attrib
) );
923 case GL_DEPTH_BUFFER_BIT
:
925 const struct gl_depthbuffer_attrib
*depth
;
926 depth
= (const struct gl_depthbuffer_attrib
*) attr
->data
;
927 _mesa_DepthFunc(depth
->Func
);
928 _mesa_ClearDepth(depth
->Clear
);
929 _mesa_set_enable(ctx
, GL_DEPTH_TEST
, depth
->Test
);
930 _mesa_DepthMask(depth
->Mask
);
935 const struct gl_enable_attrib
*enable
;
936 enable
= (const struct gl_enable_attrib
*) attr
->data
;
937 pop_enable_group(ctx
, enable
);
938 ctx
->NewState
|= _NEW_ALL
;
942 MEMCPY( &ctx
->Eval
, attr
->data
, sizeof(struct gl_eval_attrib
) );
943 ctx
->NewState
|= _NEW_EVAL
;
947 const struct gl_fog_attrib
*fog
;
948 fog
= (const struct gl_fog_attrib
*) attr
->data
;
949 _mesa_set_enable(ctx
, GL_FOG
, fog
->Enabled
);
950 _mesa_Fogfv(GL_FOG_COLOR
, fog
->Color
);
951 _mesa_Fogf(GL_FOG_DENSITY
, fog
->Density
);
952 _mesa_Fogf(GL_FOG_START
, fog
->Start
);
953 _mesa_Fogf(GL_FOG_END
, fog
->End
);
954 _mesa_Fogf(GL_FOG_INDEX
, fog
->Index
);
955 _mesa_Fogi(GL_FOG_MODE
, fog
->Mode
);
960 const struct gl_hint_attrib
*hint
;
961 hint
= (const struct gl_hint_attrib
*) attr
->data
;
962 _mesa_Hint(GL_PERSPECTIVE_CORRECTION_HINT
,
963 hint
->PerspectiveCorrection
);
964 _mesa_Hint(GL_POINT_SMOOTH_HINT
, hint
->PointSmooth
);
965 _mesa_Hint(GL_LINE_SMOOTH_HINT
, hint
->LineSmooth
);
966 _mesa_Hint(GL_POLYGON_SMOOTH_HINT
, hint
->PolygonSmooth
);
967 _mesa_Hint(GL_FOG_HINT
, hint
->Fog
);
968 _mesa_Hint(GL_CLIP_VOLUME_CLIPPING_HINT_EXT
,
969 hint
->ClipVolumeClipping
);
970 if (ctx
->Extensions
.ARB_texture_compression
)
971 _mesa_Hint(GL_TEXTURE_COMPRESSION_HINT_ARB
,
972 hint
->TextureCompression
);
975 case GL_LIGHTING_BIT
:
978 const struct gl_light_attrib
*light
;
979 light
= (const struct gl_light_attrib
*) attr
->data
;
980 /* lighting enable */
981 _mesa_set_enable(ctx
, GL_LIGHTING
, light
->Enabled
);
982 /* per-light state */
983 if (_math_matrix_is_dirty(ctx
->ModelviewMatrixStack
.Top
))
984 _math_matrix_analyse( ctx
->ModelviewMatrixStack
.Top
);
986 for (i
= 0; i
< ctx
->Const
.MaxLights
; i
++) {
987 const struct gl_light
*l
= &light
->Light
[i
];
988 _mesa_set_enable(ctx
, GL_LIGHT0
+ i
, l
->Enabled
);
989 _mesa_light(ctx
, i
, GL_AMBIENT
, l
->Ambient
);
990 _mesa_light(ctx
, i
, GL_DIFFUSE
, l
->Diffuse
);
991 _mesa_light(ctx
, i
, GL_SPECULAR
, l
->Specular
);
992 _mesa_light(ctx
, i
, GL_POSITION
, l
->EyePosition
);
993 _mesa_light(ctx
, i
, GL_SPOT_DIRECTION
, l
->EyeDirection
);
994 _mesa_light(ctx
, i
, GL_SPOT_EXPONENT
, &l
->SpotExponent
);
995 _mesa_light(ctx
, i
, GL_SPOT_CUTOFF
, &l
->SpotCutoff
);
996 _mesa_light(ctx
, i
, GL_CONSTANT_ATTENUATION
,
997 &l
->ConstantAttenuation
);
998 _mesa_light(ctx
, i
, GL_LINEAR_ATTENUATION
,
999 &l
->LinearAttenuation
);
1000 _mesa_light(ctx
, i
, GL_QUADRATIC_ATTENUATION
,
1001 &l
->QuadraticAttenuation
);
1004 _mesa_LightModelfv(GL_LIGHT_MODEL_AMBIENT
,
1005 light
->Model
.Ambient
);
1006 _mesa_LightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER
,
1007 (GLfloat
) light
->Model
.LocalViewer
);
1008 _mesa_LightModelf(GL_LIGHT_MODEL_TWO_SIDE
,
1009 (GLfloat
) light
->Model
.TwoSide
);
1010 _mesa_LightModelf(GL_LIGHT_MODEL_COLOR_CONTROL
,
1011 (GLfloat
) light
->Model
.ColorControl
);
1013 MEMCPY(&ctx
->Light
.Material
, &light
->Material
,
1014 sizeof(struct gl_material
));
1016 _mesa_ShadeModel(light
->ShadeModel
);
1017 /* color material */
1018 _mesa_ColorMaterial(light
->ColorMaterialFace
,
1019 light
->ColorMaterialMode
);
1020 _mesa_set_enable(ctx
, GL_COLOR_MATERIAL
,
1021 light
->ColorMaterialEnabled
);
1026 const struct gl_line_attrib
*line
;
1027 line
= (const struct gl_line_attrib
*) attr
->data
;
1028 _mesa_set_enable(ctx
, GL_LINE_SMOOTH
, line
->SmoothFlag
);
1029 _mesa_set_enable(ctx
, GL_LINE_STIPPLE
, line
->StippleFlag
);
1030 _mesa_LineStipple(line
->StippleFactor
, line
->StipplePattern
);
1031 _mesa_LineWidth(line
->Width
);
1035 MEMCPY( &ctx
->List
, attr
->data
, sizeof(struct gl_list_attrib
) );
1037 case GL_PIXEL_MODE_BIT
:
1038 MEMCPY( &ctx
->Pixel
, attr
->data
, sizeof(struct gl_pixel_attrib
) );
1039 /* XXX what other pixel state needs to be set by function calls? */
1040 _mesa_ReadBuffer(ctx
->Pixel
.ReadBuffer
);
1041 ctx
->NewState
|= _NEW_PIXEL
;
1045 const struct gl_point_attrib
*point
;
1046 point
= (const struct gl_point_attrib
*) attr
->data
;
1047 _mesa_PointSize(point
->Size
);
1048 _mesa_set_enable(ctx
, GL_POINT_SMOOTH
, point
->SmoothFlag
);
1049 if (ctx
->Extensions
.EXT_point_parameters
) {
1050 _mesa_PointParameterfvEXT(GL_DISTANCE_ATTENUATION_EXT
,
1052 _mesa_PointParameterfEXT(GL_POINT_SIZE_MIN_EXT
,
1054 _mesa_PointParameterfEXT(GL_POINT_SIZE_MAX_EXT
,
1056 _mesa_PointParameterfEXT(GL_POINT_FADE_THRESHOLD_SIZE_EXT
,
1059 if (ctx
->Extensions
.NV_point_sprite
1060 || ctx
->Extensions
.ARB_point_sprite
) {
1062 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
1063 _mesa_TexEnvi(GL_POINT_SPRITE_NV
, GL_COORD_REPLACE_NV
,
1064 (GLint
) point
->CoordReplace
[u
]);
1066 _mesa_set_enable(ctx
, GL_POINT_SPRITE_NV
,point
->PointSprite
);
1067 _mesa_PointParameteriNV(GL_POINT_SPRITE_R_MODE_NV
,
1068 ctx
->Point
.SpriteRMode
);
1069 _mesa_PointParameterfEXT(GL_POINT_SPRITE_COORD_ORIGIN
,
1070 (GLfloat
)ctx
->Point
.SpriteOrigin
);
1074 case GL_POLYGON_BIT
:
1076 const struct gl_polygon_attrib
*polygon
;
1077 polygon
= (const struct gl_polygon_attrib
*) attr
->data
;
1078 _mesa_CullFace(polygon
->CullFaceMode
);
1079 _mesa_FrontFace(polygon
->FrontFace
);
1080 _mesa_PolygonMode(GL_FRONT
, polygon
->FrontMode
);
1081 _mesa_PolygonMode(GL_BACK
, polygon
->BackMode
);
1082 _mesa_PolygonOffset(polygon
->OffsetFactor
,
1083 polygon
->OffsetUnits
);
1084 _mesa_set_enable(ctx
, GL_POLYGON_SMOOTH
, polygon
->SmoothFlag
);
1085 _mesa_set_enable(ctx
, GL_POLYGON_STIPPLE
, polygon
->StippleFlag
);
1086 _mesa_set_enable(ctx
, GL_CULL_FACE
, polygon
->CullFlag
);
1087 _mesa_set_enable(ctx
, GL_POLYGON_OFFSET_POINT
,
1088 polygon
->OffsetPoint
);
1089 _mesa_set_enable(ctx
, GL_POLYGON_OFFSET_LINE
,
1090 polygon
->OffsetLine
);
1091 _mesa_set_enable(ctx
, GL_POLYGON_OFFSET_FILL
,
1092 polygon
->OffsetFill
);
1095 case GL_POLYGON_STIPPLE_BIT
:
1096 MEMCPY( ctx
->PolygonStipple
, attr
->data
, 32*sizeof(GLuint
) );
1097 ctx
->NewState
|= _NEW_POLYGONSTIPPLE
;
1098 if (ctx
->Driver
.PolygonStipple
)
1099 ctx
->Driver
.PolygonStipple( ctx
, (const GLubyte
*) attr
->data
);
1101 case GL_SCISSOR_BIT
:
1103 const struct gl_scissor_attrib
*scissor
;
1104 scissor
= (const struct gl_scissor_attrib
*) attr
->data
;
1105 _mesa_Scissor(scissor
->X
, scissor
->Y
,
1106 scissor
->Width
, scissor
->Height
);
1107 _mesa_set_enable(ctx
, GL_SCISSOR_TEST
, scissor
->Enabled
);
1110 case GL_STENCIL_BUFFER_BIT
:
1112 const struct gl_stencil_attrib
*stencil
;
1113 stencil
= (const struct gl_stencil_attrib
*) attr
->data
;
1114 _mesa_set_enable(ctx
, GL_STENCIL_TEST
, stencil
->Enabled
);
1115 _mesa_ClearStencil(stencil
->Clear
);
1116 if (ctx
->Extensions
.EXT_stencil_two_side
) {
1117 _mesa_set_enable(ctx
, GL_STENCIL_TEST_TWO_SIDE_EXT
,
1118 stencil
->TestTwoSide
);
1119 _mesa_ActiveStencilFaceEXT(stencil
->ActiveFace
1120 ? GL_BACK
: GL_FRONT
);
1123 _mesa_StencilFuncSeparate(GL_FRONT
,
1124 stencil
->Function
[0],
1126 stencil
->ValueMask
[0]);
1127 _mesa_StencilMaskSeparate(GL_FRONT
, stencil
->WriteMask
[0]);
1128 _mesa_StencilOpSeparate(GL_FRONT
, stencil
->FailFunc
[0],
1129 stencil
->ZFailFunc
[0],
1130 stencil
->ZPassFunc
[0]);
1132 _mesa_StencilFuncSeparate(GL_BACK
,
1133 stencil
->Function
[1],
1135 stencil
->ValueMask
[1]);
1136 _mesa_StencilMaskSeparate(GL_BACK
, stencil
->WriteMask
[1]);
1137 _mesa_StencilOpSeparate(GL_BACK
, stencil
->FailFunc
[1],
1138 stencil
->ZFailFunc
[1],
1139 stencil
->ZPassFunc
[1]);
1142 case GL_TRANSFORM_BIT
:
1145 const struct gl_transform_attrib
*xform
;
1146 xform
= (const struct gl_transform_attrib
*) attr
->data
;
1147 _mesa_MatrixMode(xform
->MatrixMode
);
1148 if (_math_matrix_is_dirty(ctx
->ProjectionMatrixStack
.Top
))
1149 _math_matrix_analyse( ctx
->ProjectionMatrixStack
.Top
);
1151 /* restore clip planes */
1152 for (i
= 0; i
< MAX_CLIP_PLANES
; i
++) {
1153 const GLuint mask
= 1 << 1;
1154 const GLfloat
*eyePlane
= xform
->EyeUserPlane
[i
];
1155 COPY_4V(ctx
->Transform
.EyeUserPlane
[i
], eyePlane
);
1156 if (xform
->ClipPlanesEnabled
& mask
) {
1157 _mesa_set_enable(ctx
, GL_CLIP_PLANE0
+ i
, GL_TRUE
);
1160 _mesa_set_enable(ctx
, GL_CLIP_PLANE0
+ i
, GL_FALSE
);
1162 if (ctx
->Driver
.ClipPlane
)
1163 ctx
->Driver
.ClipPlane( ctx
, GL_CLIP_PLANE0
+ i
, eyePlane
);
1166 /* normalize/rescale */
1167 if (xform
->Normalize
!= ctx
->Transform
.Normalize
)
1168 _mesa_set_enable(ctx
, GL_NORMALIZE
,ctx
->Transform
.Normalize
);
1169 if (xform
->RescaleNormals
!= ctx
->Transform
.RescaleNormals
)
1170 _mesa_set_enable(ctx
, GL_RESCALE_NORMAL_EXT
,
1171 ctx
->Transform
.RescaleNormals
);
1174 case GL_TEXTURE_BIT
:
1175 /* Take care of texture object reference counters */
1177 const struct gl_texture_attrib
*texture
;
1178 texture
= (const struct gl_texture_attrib
*) attr
->data
;
1179 pop_texture_group(ctx
, texture
);
1180 ctx
->NewState
|= _NEW_TEXTURE
;
1183 case GL_VIEWPORT_BIT
:
1185 const struct gl_viewport_attrib
*vp
;
1186 vp
= (const struct gl_viewport_attrib
*) attr
->data
;
1187 _mesa_Viewport(vp
->X
, vp
->Y
, vp
->Width
, vp
->Height
);
1188 _mesa_DepthRange(vp
->Near
, vp
->Far
);
1191 case GL_MULTISAMPLE_BIT_ARB
:
1193 const struct gl_multisample_attrib
*ms
;
1194 ms
= (const struct gl_multisample_attrib
*) attr
->data
;
1195 _mesa_SampleCoverageARB(ms
->SampleCoverageValue
,
1196 ms
->SampleCoverageInvert
);
1201 _mesa_problem( ctx
, "Bad attrib flag in PopAttrib");
1214 * Helper for incrementing/decrementing vertex buffer object reference
1215 * counts when pushing/popping the GL_CLIENT_VERTEX_ARRAY_BIT attribute group.
1218 adjust_buffer_object_ref_counts(struct gl_array_attrib
*array
, GLint step
)
1221 array
->ArrayObj
->Vertex
.BufferObj
->RefCount
+= step
;
1222 array
->ArrayObj
->Normal
.BufferObj
->RefCount
+= step
;
1223 array
->ArrayObj
->Color
.BufferObj
->RefCount
+= step
;
1224 array
->ArrayObj
->SecondaryColor
.BufferObj
->RefCount
+= step
;
1225 array
->ArrayObj
->FogCoord
.BufferObj
->RefCount
+= step
;
1226 array
->ArrayObj
->Index
.BufferObj
->RefCount
+= step
;
1227 array
->ArrayObj
->EdgeFlag
.BufferObj
->RefCount
+= step
;
1228 for (i
= 0; i
< MAX_TEXTURE_COORD_UNITS
; i
++)
1229 array
->ArrayObj
->TexCoord
[i
].BufferObj
->RefCount
+= step
;
1230 for (i
= 0; i
< VERT_ATTRIB_MAX
; i
++)
1231 array
->ArrayObj
->VertexAttrib
[i
].BufferObj
->RefCount
+= step
;
1233 array
->ArrayBufferObj
->RefCount
+= step
;
1234 array
->ElementArrayBufferObj
->RefCount
+= step
;
1238 #define GL_CLIENT_PACK_BIT (1<<20)
1239 #define GL_CLIENT_UNPACK_BIT (1<<21)
1243 _mesa_PushClientAttrib(GLbitfield mask
)
1245 struct gl_attrib_node
*newnode
;
1246 struct gl_attrib_node
*head
;
1248 GET_CURRENT_CONTEXT(ctx
);
1249 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1251 if (ctx
->ClientAttribStackDepth
>= MAX_CLIENT_ATTRIB_STACK_DEPTH
) {
1252 _mesa_error( ctx
, GL_STACK_OVERFLOW
, "glPushClientAttrib" );
1256 /* Build linked list of attribute nodes which save all attribute */
1257 /* groups specified by the mask. */
1260 if (mask
& GL_CLIENT_PIXEL_STORE_BIT
) {
1261 struct gl_pixelstore_attrib
*attr
;
1262 #if FEATURE_EXT_pixel_buffer_object
1263 ctx
->Pack
.BufferObj
->RefCount
++;
1264 ctx
->Unpack
.BufferObj
->RefCount
++;
1266 /* packing attribs */
1267 attr
= MALLOC_STRUCT( gl_pixelstore_attrib
);
1268 MEMCPY( attr
, &ctx
->Pack
, sizeof(struct gl_pixelstore_attrib
) );
1269 newnode
= new_attrib_node( GL_CLIENT_PACK_BIT
);
1270 newnode
->data
= attr
;
1271 newnode
->next
= head
;
1273 /* unpacking attribs */
1274 attr
= MALLOC_STRUCT( gl_pixelstore_attrib
);
1275 MEMCPY( attr
, &ctx
->Unpack
, sizeof(struct gl_pixelstore_attrib
) );
1276 newnode
= new_attrib_node( GL_CLIENT_UNPACK_BIT
);
1277 newnode
->data
= attr
;
1278 newnode
->next
= head
;
1281 if (mask
& GL_CLIENT_VERTEX_ARRAY_BIT
) {
1282 struct gl_array_attrib
*attr
;
1283 struct gl_array_object
*obj
;
1285 attr
= MALLOC_STRUCT( gl_array_attrib
);
1286 obj
= MALLOC_STRUCT( gl_array_object
);
1288 MEMCPY( attr
, &ctx
->Array
, sizeof(struct gl_array_attrib
) );
1289 MEMCPY( obj
, ctx
->Array
.ArrayObj
, sizeof(struct gl_array_object
) );
1291 attr
->ArrayObj
= obj
;
1293 newnode
= new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT
);
1294 newnode
->data
= attr
;
1295 newnode
->next
= head
;
1297 /* bump reference counts on buffer objects */
1298 adjust_buffer_object_ref_counts(&ctx
->Array
, 1);
1301 ctx
->ClientAttribStack
[ctx
->ClientAttribStackDepth
] = head
;
1302 ctx
->ClientAttribStackDepth
++;
1309 _mesa_PopClientAttrib(void)
1311 struct gl_attrib_node
*attr
, *next
;
1313 GET_CURRENT_CONTEXT(ctx
);
1314 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
1316 if (ctx
->ClientAttribStackDepth
== 0) {
1317 _mesa_error( ctx
, GL_STACK_UNDERFLOW
, "glPopClientAttrib" );
1321 ctx
->ClientAttribStackDepth
--;
1322 attr
= ctx
->ClientAttribStack
[ctx
->ClientAttribStackDepth
];
1325 switch (attr
->kind
) {
1326 case GL_CLIENT_PACK_BIT
:
1327 #if FEATURE_EXT_pixel_buffer_object
1328 ctx
->Pack
.BufferObj
->RefCount
--;
1329 if (ctx
->Pack
.BufferObj
->RefCount
<= 0) {
1330 _mesa_remove_buffer_object( ctx
, ctx
->Pack
.BufferObj
);
1331 (*ctx
->Driver
.DeleteBuffer
)( ctx
, ctx
->Pack
.BufferObj
);
1334 MEMCPY( &ctx
->Pack
, attr
->data
,
1335 sizeof(struct gl_pixelstore_attrib
) );
1336 ctx
->NewState
|= _NEW_PACKUNPACK
;
1338 case GL_CLIENT_UNPACK_BIT
:
1339 #if FEATURE_EXT_pixel_buffer_object
1340 ctx
->Unpack
.BufferObj
->RefCount
--;
1341 if (ctx
->Unpack
.BufferObj
->RefCount
<= 0) {
1342 _mesa_remove_buffer_object( ctx
, ctx
->Unpack
.BufferObj
);
1343 (*ctx
->Driver
.DeleteBuffer
)( ctx
, ctx
->Unpack
.BufferObj
);
1346 MEMCPY( &ctx
->Unpack
, attr
->data
,
1347 sizeof(struct gl_pixelstore_attrib
) );
1348 ctx
->NewState
|= _NEW_PACKUNPACK
;
1350 case GL_CLIENT_VERTEX_ARRAY_BIT
: {
1351 struct gl_array_attrib
* data
=
1352 (struct gl_array_attrib
*) attr
->data
;
1354 adjust_buffer_object_ref_counts(&ctx
->Array
, -1);
1356 ctx
->Array
.ActiveTexture
= data
->ActiveTexture
;
1357 ctx
->Array
.LockFirst
= data
->LockFirst
;
1358 ctx
->Array
.LockCount
= data
->LockCount
;
1360 _mesa_BindVertexArrayAPPLE( data
->ArrayObj
->Name
);
1362 MEMCPY( ctx
->Array
.ArrayObj
, data
->ArrayObj
,
1363 sizeof( struct gl_array_object
) );
1365 FREE( data
->ArrayObj
);
1367 /* FIXME: Should some bits in ctx->Array->NewState also be set
1368 * FIXME: here? It seems like it should be set to inclusive-or
1369 * FIXME: of the old ArrayObj->_Enabled and the new _Enabled.
1372 ctx
->NewState
|= _NEW_ARRAY
;
1376 _mesa_problem( ctx
, "Bad attrib flag in PopClientAttrib");
1388 void _mesa_init_attrib( GLcontext
*ctx
)
1390 /* Renderer and client attribute stacks */
1391 ctx
->AttribStackDepth
= 0;
1392 ctx
->ClientAttribStackDepth
= 0;