1 /* $Id: attrib.c,v 1.73 2002/10/11 21:42:08 brianp Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
49 #include "simple_list.h"
54 #include "math/m_xform.h"
61 * Allocate a new attribute state node. These nodes have a
62 * "kind" value and a pointer to a struct of state data.
64 static struct gl_attrib_node
*
65 new_attrib_node( GLbitfield kind
)
67 struct gl_attrib_node
*an
= MALLOC_STRUCT(gl_attrib_node
);
76 _mesa_PushAttrib(GLbitfield mask
)
78 struct gl_attrib_node
*newnode
;
79 struct gl_attrib_node
*head
;
81 GET_CURRENT_CONTEXT(ctx
);
82 ASSERT_OUTSIDE_BEGIN_END(ctx
);
84 if (MESA_VERBOSE
& VERBOSE_API
)
85 _mesa_debug(ctx
, "glPushAttrib %x\n", (int) mask
);
87 if (ctx
->AttribStackDepth
>= MAX_ATTRIB_STACK_DEPTH
) {
88 _mesa_error( ctx
, GL_STACK_OVERFLOW
, "glPushAttrib" );
92 /* Build linked list of attribute nodes which save all attribute */
93 /* groups specified by the mask. */
96 if (mask
& GL_ACCUM_BUFFER_BIT
) {
97 struct gl_accum_attrib
*attr
;
98 attr
= MALLOC_STRUCT( gl_accum_attrib
);
99 MEMCPY( attr
, &ctx
->Accum
, sizeof(struct gl_accum_attrib
) );
100 newnode
= new_attrib_node( GL_ACCUM_BUFFER_BIT
);
101 newnode
->data
= attr
;
102 newnode
->next
= head
;
106 if (mask
& GL_COLOR_BUFFER_BIT
) {
107 struct gl_colorbuffer_attrib
*attr
;
108 attr
= MALLOC_STRUCT( gl_colorbuffer_attrib
);
109 MEMCPY( attr
, &ctx
->Color
, sizeof(struct gl_colorbuffer_attrib
) );
110 newnode
= new_attrib_node( GL_COLOR_BUFFER_BIT
);
111 newnode
->data
= attr
;
112 newnode
->next
= head
;
116 if (mask
& GL_CURRENT_BIT
) {
117 struct gl_current_attrib
*attr
;
118 FLUSH_CURRENT( ctx
, 0 );
119 attr
= MALLOC_STRUCT( gl_current_attrib
);
120 MEMCPY( attr
, &ctx
->Current
, sizeof(struct gl_current_attrib
) );
121 newnode
= new_attrib_node( GL_CURRENT_BIT
);
122 newnode
->data
= attr
;
123 newnode
->next
= head
;
127 if (mask
& GL_DEPTH_BUFFER_BIT
) {
128 struct gl_depthbuffer_attrib
*attr
;
129 attr
= MALLOC_STRUCT( gl_depthbuffer_attrib
);
130 MEMCPY( attr
, &ctx
->Depth
, sizeof(struct gl_depthbuffer_attrib
) );
131 newnode
= new_attrib_node( GL_DEPTH_BUFFER_BIT
);
132 newnode
->data
= attr
;
133 newnode
->next
= head
;
137 if (mask
& GL_ENABLE_BIT
) {
138 struct gl_enable_attrib
*attr
;
140 attr
= MALLOC_STRUCT( gl_enable_attrib
);
141 /* Copy enable flags from all other attributes into the enable struct. */
142 attr
->AlphaTest
= ctx
->Color
.AlphaEnabled
;
143 attr
->AutoNormal
= ctx
->Eval
.AutoNormal
;
144 attr
->Blend
= ctx
->Color
.BlendEnabled
;
145 attr
->ClipPlanes
= ctx
->Transform
.ClipPlanesEnabled
;
146 attr
->ColorMaterial
= ctx
->Light
.ColorMaterialEnabled
;
147 attr
->Convolution1D
= ctx
->Pixel
.Convolution1DEnabled
;
148 attr
->Convolution2D
= ctx
->Pixel
.Convolution2DEnabled
;
149 attr
->Separable2D
= ctx
->Pixel
.Separable2DEnabled
;
150 attr
->CullFace
= ctx
->Polygon
.CullFlag
;
151 attr
->DepthTest
= ctx
->Depth
.Test
;
152 attr
->Dither
= ctx
->Color
.DitherFlag
;
153 attr
->Fog
= ctx
->Fog
.Enabled
;
154 for (i
=0;i
<MAX_LIGHTS
;i
++) {
155 attr
->Light
[i
] = ctx
->Light
.Light
[i
].Enabled
;
157 attr
->Lighting
= ctx
->Light
.Enabled
;
158 attr
->LineSmooth
= ctx
->Line
.SmoothFlag
;
159 attr
->LineStipple
= ctx
->Line
.StippleFlag
;
160 attr
->Histogram
= ctx
->Pixel
.HistogramEnabled
;
161 attr
->MinMax
= ctx
->Pixel
.MinMaxEnabled
;
162 attr
->IndexLogicOp
= ctx
->Color
.IndexLogicOpEnabled
;
163 attr
->ColorLogicOp
= ctx
->Color
.ColorLogicOpEnabled
;
164 attr
->Map1Color4
= ctx
->Eval
.Map1Color4
;
165 attr
->Map1Index
= ctx
->Eval
.Map1Index
;
166 attr
->Map1Normal
= ctx
->Eval
.Map1Normal
;
167 attr
->Map1TextureCoord1
= ctx
->Eval
.Map1TextureCoord1
;
168 attr
->Map1TextureCoord2
= ctx
->Eval
.Map1TextureCoord2
;
169 attr
->Map1TextureCoord3
= ctx
->Eval
.Map1TextureCoord3
;
170 attr
->Map1TextureCoord4
= ctx
->Eval
.Map1TextureCoord4
;
171 attr
->Map1Vertex3
= ctx
->Eval
.Map1Vertex3
;
172 attr
->Map1Vertex4
= ctx
->Eval
.Map1Vertex4
;
173 MEMCPY(attr
->Map1Attrib
, ctx
->Eval
.Map1Attrib
, sizeof(ctx
->Eval
.Map1Attrib
));
174 attr
->Map2Color4
= ctx
->Eval
.Map2Color4
;
175 attr
->Map2Index
= ctx
->Eval
.Map2Index
;
176 attr
->Map2Normal
= ctx
->Eval
.Map2Normal
;
177 attr
->Map2TextureCoord1
= ctx
->Eval
.Map2TextureCoord1
;
178 attr
->Map2TextureCoord2
= ctx
->Eval
.Map2TextureCoord2
;
179 attr
->Map2TextureCoord3
= ctx
->Eval
.Map2TextureCoord3
;
180 attr
->Map2TextureCoord4
= ctx
->Eval
.Map2TextureCoord4
;
181 attr
->Map2Vertex3
= ctx
->Eval
.Map2Vertex3
;
182 attr
->Map2Vertex4
= ctx
->Eval
.Map2Vertex4
;
183 MEMCPY(attr
->Map2Attrib
, ctx
->Eval
.Map2Attrib
, sizeof(ctx
->Eval
.Map2Attrib
));
184 attr
->Normalize
= ctx
->Transform
.Normalize
;
185 attr
->RasterPositionUnclipped
= ctx
->Transform
.RasterPositionUnclipped
;
186 attr
->PixelTexture
= ctx
->Pixel
.PixelTextureEnabled
;
187 attr
->PointSmooth
= ctx
->Point
.SmoothFlag
;
188 attr
->PointSprite
= ctx
->Point
.PointSprite
;
189 attr
->PolygonOffsetPoint
= ctx
->Polygon
.OffsetPoint
;
190 attr
->PolygonOffsetLine
= ctx
->Polygon
.OffsetLine
;
191 attr
->PolygonOffsetFill
= ctx
->Polygon
.OffsetFill
;
192 attr
->PolygonSmooth
= ctx
->Polygon
.SmoothFlag
;
193 attr
->PolygonStipple
= ctx
->Polygon
.StippleFlag
;
194 attr
->RescaleNormals
= ctx
->Transform
.RescaleNormals
;
195 attr
->Scissor
= ctx
->Scissor
.Enabled
;
196 attr
->Stencil
= ctx
->Stencil
.Enabled
;
197 attr
->MultisampleEnabled
= ctx
->Multisample
.Enabled
;
198 attr
->SampleAlphaToCoverage
= ctx
->Multisample
.SampleAlphaToCoverage
;
199 attr
->SampleAlphaToOne
= ctx
->Multisample
.SampleAlphaToOne
;
200 attr
->SampleCoverage
= ctx
->Multisample
.SampleCoverage
;
201 attr
->SampleCoverageInvert
= ctx
->Multisample
.SampleCoverageInvert
;
202 for (i
=0; i
<MAX_TEXTURE_UNITS
; i
++) {
203 attr
->Texture
[i
] = ctx
->Texture
.Unit
[i
].Enabled
;
204 attr
->TexGen
[i
] = ctx
->Texture
.Unit
[i
].TexGenEnabled
;
206 /* GL_NV_vertex_program */
207 attr
->VertexProgram
= ctx
->VertexProgram
.Enabled
;
208 attr
->VertexProgramPointSize
= ctx
->VertexProgram
.PointSizeEnabled
;
209 attr
->VertexProgramTwoSide
= ctx
->VertexProgram
.TwoSideEnabled
;
210 newnode
= new_attrib_node( GL_ENABLE_BIT
);
211 newnode
->data
= attr
;
212 newnode
->next
= head
;
216 if (mask
& GL_EVAL_BIT
) {
217 struct gl_eval_attrib
*attr
;
218 attr
= MALLOC_STRUCT( gl_eval_attrib
);
219 MEMCPY( attr
, &ctx
->Eval
, sizeof(struct gl_eval_attrib
) );
220 newnode
= new_attrib_node( GL_EVAL_BIT
);
221 newnode
->data
= attr
;
222 newnode
->next
= head
;
226 if (mask
& GL_FOG_BIT
) {
227 struct gl_fog_attrib
*attr
;
228 attr
= MALLOC_STRUCT( gl_fog_attrib
);
229 MEMCPY( attr
, &ctx
->Fog
, sizeof(struct gl_fog_attrib
) );
230 newnode
= new_attrib_node( GL_FOG_BIT
);
231 newnode
->data
= attr
;
232 newnode
->next
= head
;
236 if (mask
& GL_HINT_BIT
) {
237 struct gl_hint_attrib
*attr
;
238 attr
= MALLOC_STRUCT( gl_hint_attrib
);
239 MEMCPY( attr
, &ctx
->Hint
, sizeof(struct gl_hint_attrib
) );
240 newnode
= new_attrib_node( GL_HINT_BIT
);
241 newnode
->data
= attr
;
242 newnode
->next
= head
;
246 if (mask
& GL_LIGHTING_BIT
) {
247 struct gl_light_attrib
*attr
;
248 FLUSH_CURRENT(ctx
, 0); /* flush material changes */
249 attr
= MALLOC_STRUCT( gl_light_attrib
);
250 MEMCPY( attr
, &ctx
->Light
, sizeof(struct gl_light_attrib
) );
251 newnode
= new_attrib_node( GL_LIGHTING_BIT
);
252 newnode
->data
= attr
;
253 newnode
->next
= head
;
257 if (mask
& GL_LINE_BIT
) {
258 struct gl_line_attrib
*attr
;
259 attr
= MALLOC_STRUCT( gl_line_attrib
);
260 MEMCPY( attr
, &ctx
->Line
, sizeof(struct gl_line_attrib
) );
261 newnode
= new_attrib_node( GL_LINE_BIT
);
262 newnode
->data
= attr
;
263 newnode
->next
= head
;
267 if (mask
& GL_LIST_BIT
) {
268 struct gl_list_attrib
*attr
;
269 attr
= MALLOC_STRUCT( gl_list_attrib
);
270 MEMCPY( attr
, &ctx
->List
, sizeof(struct gl_list_attrib
) );
271 newnode
= new_attrib_node( GL_LIST_BIT
);
272 newnode
->data
= attr
;
273 newnode
->next
= head
;
277 if (mask
& GL_PIXEL_MODE_BIT
) {
278 struct gl_pixel_attrib
*attr
;
279 attr
= MALLOC_STRUCT( gl_pixel_attrib
);
280 MEMCPY( attr
, &ctx
->Pixel
, sizeof(struct gl_pixel_attrib
) );
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
;
340 /* Bump the texture object reference counts so that they don't
341 * inadvertantly get deleted.
343 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
344 ctx
->Texture
.Unit
[u
].Current1D
->RefCount
++;
345 ctx
->Texture
.Unit
[u
].Current2D
->RefCount
++;
346 ctx
->Texture
.Unit
[u
].Current3D
->RefCount
++;
347 ctx
->Texture
.Unit
[u
].CurrentCubeMap
->RefCount
++;
348 ctx
->Texture
.Unit
[u
].CurrentRect
->RefCount
++;
350 attr
= MALLOC_STRUCT( gl_texture_attrib
);
351 MEMCPY( attr
, &ctx
->Texture
, sizeof(struct gl_texture_attrib
) );
352 /* copy state of the currently bound texture objects */
353 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
354 _mesa_copy_texture_object(&attr
->Unit
[u
].Saved1D
,
355 attr
->Unit
[u
].Current1D
);
356 _mesa_copy_texture_object(&attr
->Unit
[u
].Saved2D
,
357 attr
->Unit
[u
].Current2D
);
358 _mesa_copy_texture_object(&attr
->Unit
[u
].Saved3D
,
359 attr
->Unit
[u
].Current3D
);
360 _mesa_copy_texture_object(&attr
->Unit
[u
].SavedCubeMap
,
361 attr
->Unit
[u
].CurrentCubeMap
);
362 _mesa_copy_texture_object(&attr
->Unit
[u
].SavedRect
,
363 attr
->Unit
[u
].CurrentRect
);
365 newnode
= new_attrib_node( GL_TEXTURE_BIT
);
366 newnode
->data
= attr
;
367 newnode
->next
= head
;
371 if (mask
& GL_TRANSFORM_BIT
) {
372 struct gl_transform_attrib
*attr
;
373 attr
= MALLOC_STRUCT( gl_transform_attrib
);
374 MEMCPY( attr
, &ctx
->Transform
, sizeof(struct gl_transform_attrib
) );
375 newnode
= new_attrib_node( GL_TRANSFORM_BIT
);
376 newnode
->data
= attr
;
377 newnode
->next
= head
;
381 if (mask
& GL_VIEWPORT_BIT
) {
382 struct gl_viewport_attrib
*attr
;
383 attr
= MALLOC_STRUCT( gl_viewport_attrib
);
384 MEMCPY( attr
, &ctx
->Viewport
, sizeof(struct gl_viewport_attrib
) );
385 newnode
= new_attrib_node( GL_VIEWPORT_BIT
);
386 newnode
->data
= attr
;
387 newnode
->next
= head
;
391 /* GL_ARB_multisample */
392 if (mask
& GL_MULTISAMPLE_BIT_ARB
) {
393 struct gl_multisample_attrib
*attr
;
394 attr
= MALLOC_STRUCT( gl_multisample_attrib
);
395 MEMCPY( attr
, &ctx
->Multisample
, sizeof(struct gl_multisample_attrib
) );
396 newnode
= new_attrib_node( GL_MULTISAMPLE_BIT_ARB
);
397 newnode
->data
= attr
;
398 newnode
->next
= head
;
402 ctx
->AttribStack
[ctx
->AttribStackDepth
] = head
;
403 ctx
->AttribStackDepth
++;
409 pop_enable_group(GLcontext
*ctx
, const struct gl_enable_attrib
*enable
)
413 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM) \
414 if ((VALUE) != (NEWVALUE)) { \
415 _mesa_set_enable( ctx, ENUM, (NEWVALUE) ); \
418 TEST_AND_UPDATE(ctx
->Color
.AlphaEnabled
, enable
->AlphaTest
, GL_ALPHA_TEST
);
419 TEST_AND_UPDATE(ctx
->Color
.BlendEnabled
, enable
->Blend
, GL_BLEND
);
421 for (i
=0;i
<MAX_CLIP_PLANES
;i
++) {
422 const GLuint mask
= 1 << i
;
423 if ((ctx
->Transform
.ClipPlanesEnabled
& mask
) != (enable
->ClipPlanes
& mask
))
424 _mesa_set_enable(ctx
, (GLenum
) (GL_CLIP_PLANE0
+ i
),
425 (enable
->ClipPlanes
& mask
) ? GL_TRUE
: GL_FALSE
);
428 TEST_AND_UPDATE(ctx
->Light
.ColorMaterialEnabled
, enable
->ColorMaterial
,
430 TEST_AND_UPDATE(ctx
->Polygon
.CullFlag
, enable
->CullFace
, GL_CULL_FACE
);
431 TEST_AND_UPDATE(ctx
->Depth
.Test
, enable
->DepthTest
, GL_DEPTH_TEST
);
432 TEST_AND_UPDATE(ctx
->Color
.DitherFlag
, enable
->Dither
, GL_DITHER
);
433 TEST_AND_UPDATE(ctx
->Pixel
.Convolution1DEnabled
, enable
->Convolution1D
,
435 TEST_AND_UPDATE(ctx
->Pixel
.Convolution2DEnabled
, enable
->Convolution2D
,
437 TEST_AND_UPDATE(ctx
->Pixel
.Separable2DEnabled
, enable
->Separable2D
,
439 TEST_AND_UPDATE(ctx
->Fog
.Enabled
, enable
->Fog
, GL_FOG
);
440 TEST_AND_UPDATE(ctx
->Light
.Enabled
, enable
->Lighting
, GL_LIGHTING
);
441 TEST_AND_UPDATE(ctx
->Line
.SmoothFlag
, enable
->LineSmooth
, GL_LINE_SMOOTH
);
442 TEST_AND_UPDATE(ctx
->Line
.StippleFlag
, enable
->LineStipple
,
444 TEST_AND_UPDATE(ctx
->Color
.IndexLogicOpEnabled
, enable
->IndexLogicOp
,
446 TEST_AND_UPDATE(ctx
->Color
.ColorLogicOpEnabled
, enable
->ColorLogicOp
,
449 TEST_AND_UPDATE(ctx
->Eval
.Map1Color4
, enable
->Map1Color4
, GL_MAP1_COLOR_4
);
450 TEST_AND_UPDATE(ctx
->Eval
.Map1Index
, enable
->Map1Index
, GL_MAP1_INDEX
);
451 TEST_AND_UPDATE(ctx
->Eval
.Map1Normal
, enable
->Map1Normal
, GL_MAP1_NORMAL
);
452 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord1
, enable
->Map1TextureCoord1
,
453 GL_MAP1_TEXTURE_COORD_1
);
454 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord2
, enable
->Map1TextureCoord2
,
455 GL_MAP1_TEXTURE_COORD_2
);
456 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord3
, enable
->Map1TextureCoord3
,
457 GL_MAP1_TEXTURE_COORD_3
);
458 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord4
, enable
->Map1TextureCoord4
,
459 GL_MAP1_TEXTURE_COORD_4
);
460 TEST_AND_UPDATE(ctx
->Eval
.Map1Vertex3
, enable
->Map1Vertex3
,
462 TEST_AND_UPDATE(ctx
->Eval
.Map1Vertex4
, enable
->Map1Vertex4
,
464 for (i
= 0; i
< 16; i
++) {
465 TEST_AND_UPDATE(ctx
->Eval
.Map1Attrib
[i
], enable
->Map1Attrib
[i
],
466 GL_MAP1_VERTEX_ATTRIB0_4_NV
+ i
);
469 TEST_AND_UPDATE(ctx
->Eval
.Map2Color4
, enable
->Map2Color4
, GL_MAP2_COLOR_4
);
470 TEST_AND_UPDATE(ctx
->Eval
.Map2Index
, enable
->Map2Index
, GL_MAP2_INDEX
);
471 TEST_AND_UPDATE(ctx
->Eval
.Map2Normal
, enable
->Map2Normal
, GL_MAP2_NORMAL
);
472 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord1
, enable
->Map2TextureCoord1
,
473 GL_MAP2_TEXTURE_COORD_1
);
474 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord2
, enable
->Map2TextureCoord2
,
475 GL_MAP2_TEXTURE_COORD_2
);
476 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord3
, enable
->Map2TextureCoord3
,
477 GL_MAP2_TEXTURE_COORD_3
);
478 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord4
, enable
->Map2TextureCoord4
,
479 GL_MAP2_TEXTURE_COORD_4
);
480 TEST_AND_UPDATE(ctx
->Eval
.Map2Vertex3
, enable
->Map2Vertex3
,
482 TEST_AND_UPDATE(ctx
->Eval
.Map2Vertex4
, enable
->Map2Vertex4
,
484 for (i
= 0; i
< 16; i
++) {
485 TEST_AND_UPDATE(ctx
->Eval
.Map2Attrib
[i
], enable
->Map2Attrib
[i
],
486 GL_MAP2_VERTEX_ATTRIB0_4_NV
+ i
);
489 TEST_AND_UPDATE(ctx
->Eval
.AutoNormal
, enable
->AutoNormal
, GL_AUTO_NORMAL
);
490 TEST_AND_UPDATE(ctx
->Transform
.Normalize
, enable
->Normalize
, GL_NORMALIZE
);
491 TEST_AND_UPDATE(ctx
->Transform
.RescaleNormals
, enable
->RescaleNormals
,
492 GL_RESCALE_NORMAL_EXT
);
493 TEST_AND_UPDATE(ctx
->Transform
.RasterPositionUnclipped
,
494 enable
->RasterPositionUnclipped
,
495 GL_RASTER_POSITION_UNCLIPPED_IBM
);
496 TEST_AND_UPDATE(ctx
->Pixel
.PixelTextureEnabled
, enable
->PixelTexture
,
498 TEST_AND_UPDATE(ctx
->Point
.SmoothFlag
, enable
->PointSmooth
,
500 if (ctx
->Extensions
.NV_point_sprite
) {
501 TEST_AND_UPDATE(ctx
->Point
.PointSprite
, enable
->PointSprite
,
504 TEST_AND_UPDATE(ctx
->Polygon
.OffsetPoint
, enable
->PolygonOffsetPoint
,
505 GL_POLYGON_OFFSET_POINT
);
506 TEST_AND_UPDATE(ctx
->Polygon
.OffsetLine
, enable
->PolygonOffsetLine
,
507 GL_POLYGON_OFFSET_LINE
);
508 TEST_AND_UPDATE(ctx
->Polygon
.OffsetFill
, enable
->PolygonOffsetFill
,
509 GL_POLYGON_OFFSET_FILL
);
510 TEST_AND_UPDATE(ctx
->Polygon
.SmoothFlag
, enable
->PolygonSmooth
,
512 TEST_AND_UPDATE(ctx
->Polygon
.StippleFlag
, enable
->PolygonStipple
,
514 TEST_AND_UPDATE(ctx
->Scissor
.Enabled
, enable
->Scissor
, GL_SCISSOR_TEST
);
515 TEST_AND_UPDATE(ctx
->Stencil
.Enabled
, enable
->Stencil
, GL_STENCIL_TEST
);
516 /* XXX two-sided stencil */
517 TEST_AND_UPDATE(ctx
->Multisample
.Enabled
, enable
->MultisampleEnabled
,
519 TEST_AND_UPDATE(ctx
->Multisample
.SampleAlphaToCoverage
,
520 enable
->SampleAlphaToCoverage
,
521 GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
);
522 TEST_AND_UPDATE(ctx
->Multisample
.SampleAlphaToOne
,
523 enable
->SampleAlphaToOne
,
524 GL_SAMPLE_ALPHA_TO_ONE_ARB
);
525 TEST_AND_UPDATE(ctx
->Multisample
.SampleCoverage
,
526 enable
->SampleCoverage
,
527 GL_SAMPLE_COVERAGE_ARB
);
528 TEST_AND_UPDATE(ctx
->Multisample
.SampleCoverageInvert
,
529 enable
->SampleCoverageInvert
,
530 GL_SAMPLE_COVERAGE_INVERT_ARB
);
531 /* GL_NV_vertex_program */
532 TEST_AND_UPDATE(ctx
->VertexProgram
.Enabled
,
533 enable
->VertexProgram
,
534 GL_VERTEX_PROGRAM_NV
);
535 TEST_AND_UPDATE(ctx
->VertexProgram
.PointSizeEnabled
,
536 enable
->VertexProgramPointSize
,
537 GL_VERTEX_PROGRAM_POINT_SIZE_NV
);
538 TEST_AND_UPDATE(ctx
->VertexProgram
.TwoSideEnabled
,
539 enable
->VertexProgramTwoSide
,
540 GL_VERTEX_PROGRAM_TWO_SIDE_NV
);
542 #undef TEST_AND_UPDATE
544 /* texture unit enables */
545 for (i
= 0; i
< ctx
->Const
.MaxTextureUnits
; i
++) {
546 if (ctx
->Texture
.Unit
[i
].Enabled
!= enable
->Texture
[i
]) {
547 ctx
->Texture
.Unit
[i
].Enabled
= enable
->Texture
[i
];
548 if (ctx
->Driver
.Enable
) {
549 if (ctx
->Driver
.ActiveTexture
) {
550 (*ctx
->Driver
.ActiveTexture
)(ctx
, i
);
552 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_1D
,
553 (GLboolean
) (enable
->Texture
[i
] & TEXTURE_1D_BIT
) );
554 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_2D
,
555 (GLboolean
) (enable
->Texture
[i
] & TEXTURE_2D_BIT
) );
556 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_3D
,
557 (GLboolean
) (enable
->Texture
[i
] & TEXTURE_3D_BIT
) );
558 if (ctx
->Extensions
.ARB_texture_cube_map
)
559 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_CUBE_MAP_ARB
,
560 (GLboolean
) (enable
->Texture
[i
] & TEXTURE_CUBE_BIT
) );
561 if (ctx
->Extensions
.NV_texture_rectangle
)
562 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_RECTANGLE_NV
,
563 (GLboolean
) (enable
->Texture
[i
] & TEXTURE_RECT_BIT
) );
567 if (ctx
->Texture
.Unit
[i
].TexGenEnabled
!= enable
->TexGen
[i
]) {
568 ctx
->Texture
.Unit
[i
].TexGenEnabled
= enable
->TexGen
[i
];
569 if (ctx
->Driver
.Enable
) {
570 if (ctx
->Driver
.ActiveTexture
) {
571 (*ctx
->Driver
.ActiveTexture
)(ctx
, i
);
573 if (enable
->TexGen
[i
] & S_BIT
)
574 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_S
, GL_TRUE
);
576 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_S
, GL_FALSE
);
577 if (enable
->TexGen
[i
] & T_BIT
)
578 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_T
, GL_TRUE
);
580 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_T
, GL_FALSE
);
581 if (enable
->TexGen
[i
] & R_BIT
)
582 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_R
, GL_TRUE
);
584 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_R
, GL_FALSE
);
585 if (enable
->TexGen
[i
] & Q_BIT
)
586 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_Q
, GL_TRUE
);
588 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_Q
, GL_FALSE
);
593 if (ctx
->Driver
.ActiveTexture
) {
594 (*ctx
->Driver
.ActiveTexture
)(ctx
, ctx
->Texture
.CurrentUnit
);
600 pop_texture_group(GLcontext
*ctx
, const struct gl_texture_attrib
*texAttrib
)
604 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
605 const struct gl_texture_unit
*unit
= &texAttrib
->Unit
[u
];
608 _mesa_ActiveTextureARB(GL_TEXTURE0_ARB
+ u
);
609 _mesa_set_enable(ctx
, GL_TEXTURE_1D
,
610 (GLboolean
) (unit
->Enabled
& TEXTURE_1D_BIT
? GL_TRUE
: GL_FALSE
));
611 _mesa_set_enable(ctx
, GL_TEXTURE_2D
,
612 (GLboolean
) (unit
->Enabled
& TEXTURE_2D_BIT
? GL_TRUE
: GL_FALSE
));
613 _mesa_set_enable(ctx
, GL_TEXTURE_3D
,
614 (GLboolean
) (unit
->Enabled
& TEXTURE_3D_BIT
? GL_TRUE
: GL_FALSE
));
615 if (ctx
->Extensions
.ARB_texture_cube_map
) {
616 _mesa_set_enable(ctx
, GL_TEXTURE_CUBE_MAP_ARB
,
617 (GLboolean
) (unit
->Enabled
& TEXTURE_CUBE_BIT
? GL_TRUE
: GL_FALSE
));
619 if (ctx
->Extensions
.NV_texture_rectangle
) {
620 _mesa_set_enable(ctx
, GL_TEXTURE_RECTANGLE_NV
,
621 (GLboolean
) (unit
->Enabled
& TEXTURE_RECT_BIT
? GL_TRUE
: GL_FALSE
));
623 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_TEXTURE_ENV_MODE
, unit
->EnvMode
);
624 _mesa_TexEnvfv(GL_TEXTURE_ENV
, GL_TEXTURE_ENV_COLOR
, unit
->EnvColor
);
625 _mesa_TexGeni(GL_S
, GL_TEXTURE_GEN_MODE
, unit
->GenModeS
);
626 _mesa_TexGeni(GL_T
, GL_TEXTURE_GEN_MODE
, unit
->GenModeT
);
627 _mesa_TexGeni(GL_R
, GL_TEXTURE_GEN_MODE
, unit
->GenModeR
);
628 _mesa_TexGeni(GL_Q
, GL_TEXTURE_GEN_MODE
, unit
->GenModeQ
);
629 _mesa_TexGenfv(GL_S
, GL_OBJECT_PLANE
, unit
->ObjectPlaneS
);
630 _mesa_TexGenfv(GL_T
, GL_OBJECT_PLANE
, unit
->ObjectPlaneT
);
631 _mesa_TexGenfv(GL_R
, GL_OBJECT_PLANE
, unit
->ObjectPlaneR
);
632 _mesa_TexGenfv(GL_Q
, GL_OBJECT_PLANE
, unit
->ObjectPlaneQ
);
633 _mesa_TexGenfv(GL_S
, GL_EYE_PLANE
, unit
->EyePlaneS
);
634 _mesa_TexGenfv(GL_T
, GL_EYE_PLANE
, unit
->EyePlaneT
);
635 _mesa_TexGenfv(GL_R
, GL_EYE_PLANE
, unit
->EyePlaneR
);
636 _mesa_TexGenfv(GL_Q
, GL_EYE_PLANE
, unit
->EyePlaneQ
);
637 if (ctx
->Extensions
.EXT_texture_lod_bias
) {
638 _mesa_TexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT
,
639 GL_TEXTURE_LOD_BIAS_EXT
, unit
->LodBias
);
641 if (ctx
->Extensions
.EXT_texture_env_combine
||
642 ctx
->Extensions
.ARB_texture_env_combine
) {
643 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_COMBINE_RGB_EXT
,
644 unit
->CombineModeRGB
);
645 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_COMBINE_ALPHA_EXT
,
647 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE0_RGB_EXT
,
648 unit
->CombineSourceRGB
[0]);
649 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE1_RGB_EXT
,
650 unit
->CombineSourceRGB
[1]);
651 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE2_RGB_EXT
,
652 unit
->CombineSourceRGB
[2]);
653 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE0_ALPHA_EXT
,
654 unit
->CombineSourceA
[0]);
655 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE1_ALPHA_EXT
,
656 unit
->CombineSourceA
[1]);
657 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE2_ALPHA_EXT
,
658 unit
->CombineSourceA
[2]);
659 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND0_RGB_EXT
,
660 unit
->CombineOperandRGB
[0]);
661 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND1_RGB_EXT
,
662 unit
->CombineOperandRGB
[1]);
663 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND2_RGB_EXT
,
664 unit
->CombineOperandRGB
[2]);
665 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND0_ALPHA_EXT
,
666 unit
->CombineOperandA
[0]);
667 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND1_ALPHA_EXT
,
668 unit
->CombineOperandA
[1]);
669 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND2_ALPHA_EXT
,
670 unit
->CombineOperandA
[2]);
671 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_RGB_SCALE_EXT
,
672 1 << unit
->CombineScaleShiftRGB
);
673 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_ALPHA_SCALE
,
674 1 << unit
->CombineScaleShiftA
);
677 /* Restore texture object state */
678 for (i
= 0; i
< NUM_TEXTURE_TARGETS
; i
++) {
680 const struct gl_texture_object
*obj
= NULL
;
681 GLfloat bordColor
[4];
685 target
= GL_TEXTURE_1D
;
686 obj
= &unit
->Saved1D
;
689 target
= GL_TEXTURE_2D
;
690 obj
= &unit
->Saved2D
;
693 target
= GL_TEXTURE_3D
;
694 obj
= &unit
->Saved3D
;
697 if (!ctx
->Extensions
.ARB_texture_cube_map
)
699 target
= GL_TEXTURE_CUBE_MAP_ARB
;
700 obj
= &unit
->SavedCubeMap
;
703 if (!ctx
->Extensions
.NV_texture_rectangle
)
705 target
= GL_TEXTURE_RECTANGLE_NV
;
706 obj
= &unit
->SavedRect
;
709 ; /* silence warnings */
712 _mesa_BindTexture(target
, obj
->Name
);
714 bordColor
[0] = CHAN_TO_FLOAT(obj
->BorderColor
[0]);
715 bordColor
[1] = CHAN_TO_FLOAT(obj
->BorderColor
[1]);
716 bordColor
[2] = CHAN_TO_FLOAT(obj
->BorderColor
[2]);
717 bordColor
[3] = CHAN_TO_FLOAT(obj
->BorderColor
[3]);
719 _mesa_TexParameterf(target
, GL_TEXTURE_PRIORITY
, obj
->Priority
);
720 _mesa_TexParameterfv(target
, GL_TEXTURE_BORDER_COLOR
, bordColor
);
721 _mesa_TexParameteri(target
, GL_TEXTURE_WRAP_S
, obj
->WrapS
);
722 _mesa_TexParameteri(target
, GL_TEXTURE_WRAP_T
, obj
->WrapT
);
723 _mesa_TexParameteri(target
, GL_TEXTURE_WRAP_R
, obj
->WrapR
);
724 _mesa_TexParameteri(target
, GL_TEXTURE_MIN_FILTER
, obj
->MinFilter
);
725 _mesa_TexParameteri(target
, GL_TEXTURE_MAG_FILTER
, obj
->MagFilter
);
726 _mesa_TexParameterf(target
, GL_TEXTURE_MIN_LOD
, obj
->MinLod
);
727 _mesa_TexParameterf(target
, GL_TEXTURE_MAX_LOD
, obj
->MaxLod
);
728 _mesa_TexParameteri(target
, GL_TEXTURE_BASE_LEVEL
, obj
->BaseLevel
);
729 _mesa_TexParameteri(target
, GL_TEXTURE_MAX_LEVEL
, obj
->MaxLevel
);
730 if (ctx
->Extensions
.EXT_texture_filter_anisotropic
) {
731 _mesa_TexParameterf(target
, GL_TEXTURE_MAX_ANISOTROPY_EXT
,
734 if (ctx
->Extensions
.SGIX_shadow
) {
735 _mesa_TexParameteri(target
, GL_TEXTURE_COMPARE_SGIX
,
737 _mesa_TexParameteri(target
, GL_TEXTURE_COMPARE_OPERATOR_SGIX
,
738 obj
->CompareOperator
);
740 if (ctx
->Extensions
.SGIX_shadow_ambient
) {
741 _mesa_TexParameterf(target
, GL_SHADOW_AMBIENT_SGIX
,
747 _mesa_ActiveTextureARB(GL_TEXTURE0_ARB
748 + texAttrib
->CurrentUnit
);
750 /* "un-bump" the texture object reference counts. We did that so they
751 * wouldn't inadvertantly get deleted while they were still referenced
752 * inside the attribute state stack.
754 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
755 ctx
->Texture
.Unit
[u
].Current1D
->RefCount
--;
756 ctx
->Texture
.Unit
[u
].Current2D
->RefCount
--;
757 ctx
->Texture
.Unit
[u
].Current3D
->RefCount
--;
758 ctx
->Texture
.Unit
[u
].CurrentCubeMap
->RefCount
--;
759 ctx
->Texture
.Unit
[u
].CurrentRect
->RefCount
--;
765 * This function is kind of long just because we have to call a lot
766 * of device driver functions to update device driver state.
768 * XXX As it is now, most of the pop-code calls immediate-mode Mesa functions
769 * in order to restore GL state. This isn't terribly efficient but it
770 * ensures that dirty flags and any derived state gets updated correctly.
771 * We could at least check if the value to restore equals the current value
772 * and then skip the Mesa call.
775 _mesa_PopAttrib(void)
777 struct gl_attrib_node
*attr
, *next
;
778 GET_CURRENT_CONTEXT(ctx
);
779 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
781 if (ctx
->AttribStackDepth
== 0) {
782 _mesa_error( ctx
, GL_STACK_UNDERFLOW
, "glPopAttrib" );
786 ctx
->AttribStackDepth
--;
787 attr
= ctx
->AttribStack
[ctx
->AttribStackDepth
];
791 if (MESA_VERBOSE
& VERBOSE_API
) {
792 _mesa_debug(ctx
, "glPopAttrib %s\n",
793 _mesa_lookup_enum_by_nr(attr
->kind
));
796 switch (attr
->kind
) {
797 case GL_ACCUM_BUFFER_BIT
:
799 const struct gl_accum_attrib
*accum
;
800 accum
= (const struct gl_accum_attrib
*) attr
->data
;
801 _mesa_ClearAccum(accum
->ClearColor
[0],
802 accum
->ClearColor
[1],
803 accum
->ClearColor
[2],
804 accum
->ClearColor
[3]);
807 case GL_COLOR_BUFFER_BIT
:
809 const struct gl_colorbuffer_attrib
*color
;
810 color
= (const struct gl_colorbuffer_attrib
*) attr
->data
;
811 _mesa_ClearIndex((GLfloat
) color
->ClearIndex
);
812 _mesa_ClearColor(color
->ClearColor
[0],
813 color
->ClearColor
[1],
814 color
->ClearColor
[2],
815 color
->ClearColor
[3]);
816 _mesa_IndexMask(color
->IndexMask
);
817 _mesa_ColorMask((GLboolean
) (color
->ColorMask
[0] != 0),
818 (GLboolean
) (color
->ColorMask
[1] != 0),
819 (GLboolean
) (color
->ColorMask
[2] != 0),
820 (GLboolean
) (color
->ColorMask
[3] != 0));
821 _mesa_DrawBuffer(color
->DrawBuffer
);
822 _mesa_set_enable(ctx
, GL_ALPHA_TEST
, color
->AlphaEnabled
);
823 _mesa_AlphaFunc(color
->AlphaFunc
, color
->AlphaRef
);
824 _mesa_set_enable(ctx
, GL_BLEND
, color
->BlendEnabled
);
825 _mesa_BlendFuncSeparateEXT(color
->BlendSrcRGB
,
829 _mesa_BlendEquation(color
->BlendEquation
);
830 _mesa_BlendColor(color
->BlendColor
[0],
831 color
->BlendColor
[1],
832 color
->BlendColor
[2],
833 color
->BlendColor
[3]);
834 _mesa_LogicOp(color
->LogicOp
);
835 _mesa_set_enable(ctx
, GL_COLOR_LOGIC_OP
,
836 color
->ColorLogicOpEnabled
);
837 _mesa_set_enable(ctx
, GL_INDEX_LOGIC_OP
,
838 color
->IndexLogicOpEnabled
);
839 _mesa_set_enable(ctx
, GL_DITHER
, color
->DitherFlag
);
843 FLUSH_CURRENT( ctx
, 0 );
844 MEMCPY( &ctx
->Current
, attr
->data
,
845 sizeof(struct gl_current_attrib
) );
847 case GL_DEPTH_BUFFER_BIT
:
849 const struct gl_depthbuffer_attrib
*depth
;
850 depth
= (const struct gl_depthbuffer_attrib
*) attr
->data
;
851 _mesa_DepthFunc(depth
->Func
);
852 _mesa_ClearDepth(depth
->Clear
);
853 _mesa_set_enable(ctx
, GL_DEPTH_TEST
, depth
->Test
);
854 _mesa_DepthMask(depth
->Mask
);
855 if (ctx
->Extensions
.HP_occlusion_test
)
856 _mesa_set_enable(ctx
, GL_OCCLUSION_TEST_HP
,
857 depth
->OcclusionTest
);
862 const struct gl_enable_attrib
*enable
;
863 enable
= (const struct gl_enable_attrib
*) attr
->data
;
864 pop_enable_group(ctx
, enable
);
865 ctx
->NewState
|= _NEW_ALL
;
869 MEMCPY( &ctx
->Eval
, attr
->data
, sizeof(struct gl_eval_attrib
) );
870 ctx
->NewState
|= _NEW_EVAL
;
874 const struct gl_fog_attrib
*fog
;
875 fog
= (const struct gl_fog_attrib
*) attr
->data
;
876 _mesa_set_enable(ctx
, GL_FOG
, fog
->Enabled
);
877 _mesa_Fogfv(GL_FOG_COLOR
, fog
->Color
);
878 _mesa_Fogf(GL_FOG_DENSITY
, fog
->Density
);
879 _mesa_Fogf(GL_FOG_START
, fog
->Start
);
880 _mesa_Fogf(GL_FOG_END
, fog
->End
);
881 _mesa_Fogf(GL_FOG_INDEX
, fog
->Index
);
882 _mesa_Fogi(GL_FOG_MODE
, fog
->Mode
);
887 const struct gl_hint_attrib
*hint
;
888 hint
= (const struct gl_hint_attrib
*) attr
->data
;
889 _mesa_Hint(GL_PERSPECTIVE_CORRECTION_HINT
,
890 hint
->PerspectiveCorrection
);
891 _mesa_Hint(GL_POINT_SMOOTH_HINT
, hint
->PointSmooth
);
892 _mesa_Hint(GL_LINE_SMOOTH_HINT
, hint
->LineSmooth
);
893 _mesa_Hint(GL_POLYGON_SMOOTH_HINT
, hint
->PolygonSmooth
);
894 _mesa_Hint(GL_FOG_HINT
, hint
->Fog
);
895 _mesa_Hint(GL_CLIP_VOLUME_CLIPPING_HINT_EXT
,
896 hint
->ClipVolumeClipping
);
897 if (ctx
->Extensions
.ARB_texture_compression
)
898 _mesa_Hint(GL_TEXTURE_COMPRESSION_HINT_ARB
,
899 hint
->TextureCompression
);
902 case GL_LIGHTING_BIT
:
905 const struct gl_light_attrib
*light
;
906 light
= (const struct gl_light_attrib
*) attr
->data
;
907 /* lighting enable */
908 _mesa_set_enable(ctx
, GL_LIGHTING
, light
->Enabled
);
909 /* per-light state */
911 if (ctx
->ModelviewMatrixStack
.Top
->flags
& MAT_DIRTY_INVERSE
)
912 _math_matrix_analyse( ctx
->ModelviewMatrixStack
.Top
);
914 for (i
= 0; i
< MAX_LIGHTS
; i
++) {
915 GLenum lgt
= (GLenum
) (GL_LIGHT0
+ i
);
916 const struct gl_light
*l
= &light
->Light
[i
];
918 _mesa_set_enable(ctx
, lgt
, l
->Enabled
);
919 _mesa_Lightfv( lgt
, GL_AMBIENT
, l
->Ambient
);
920 _mesa_Lightfv( lgt
, GL_DIFFUSE
, l
->Diffuse
);
921 _mesa_Lightfv( lgt
, GL_SPECULAR
, l
->Specular
);
922 TRANSFORM_POINT( tmp
, ctx
->ModelviewMatrixStack
.Top
->inv
, l
->EyePosition
);
923 _mesa_Lightfv( lgt
, GL_POSITION
, tmp
);
924 TRANSFORM_POINT( tmp
, ctx
->ModelviewMatrixStack
.Top
->m
, l
->EyeDirection
);
925 _mesa_Lightfv( lgt
, GL_SPOT_DIRECTION
, tmp
);
926 _mesa_Lightfv( lgt
, GL_SPOT_EXPONENT
, &l
->SpotExponent
);
927 _mesa_Lightfv( lgt
, GL_SPOT_CUTOFF
, &l
->SpotCutoff
);
928 _mesa_Lightfv( lgt
, GL_CONSTANT_ATTENUATION
,
929 &l
->ConstantAttenuation
);
930 _mesa_Lightfv( lgt
, GL_LINEAR_ATTENUATION
,
931 &l
->LinearAttenuation
);
932 _mesa_Lightfv( lgt
, GL_QUADRATIC_ATTENUATION
,
933 &l
->QuadraticAttenuation
);
936 _mesa_LightModelfv(GL_LIGHT_MODEL_AMBIENT
,
937 light
->Model
.Ambient
);
938 _mesa_LightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER
,
939 (GLfloat
) light
->Model
.LocalViewer
);
940 _mesa_LightModelf(GL_LIGHT_MODEL_TWO_SIDE
,
941 (GLfloat
) light
->Model
.TwoSide
);
942 _mesa_LightModelf(GL_LIGHT_MODEL_COLOR_CONTROL
,
943 (GLfloat
) light
->Model
.ColorControl
);
945 MEMCPY(ctx
->Light
.Material
, light
->Material
,
946 2 * sizeof(struct gl_material
));
948 _mesa_ShadeModel(light
->ShadeModel
);
950 _mesa_ColorMaterial(light
->ColorMaterialFace
,
951 light
->ColorMaterialMode
);
952 _mesa_set_enable(ctx
, GL_COLOR_MATERIAL
,
953 light
->ColorMaterialEnabled
);
958 const struct gl_line_attrib
*line
;
959 line
= (const struct gl_line_attrib
*) attr
->data
;
960 _mesa_set_enable(ctx
, GL_LINE_SMOOTH
, line
->SmoothFlag
);
961 _mesa_set_enable(ctx
, GL_LINE_STIPPLE
, line
->StippleFlag
);
962 _mesa_LineStipple(line
->StippleFactor
, line
->StipplePattern
);
963 _mesa_LineWidth(line
->Width
);
967 MEMCPY( &ctx
->List
, attr
->data
, sizeof(struct gl_list_attrib
) );
969 case GL_PIXEL_MODE_BIT
:
970 MEMCPY( &ctx
->Pixel
, attr
->data
, sizeof(struct gl_pixel_attrib
) );
971 ctx
->NewState
|= _NEW_PIXEL
;
975 const struct gl_point_attrib
*point
;
976 point
= (const struct gl_point_attrib
*) attr
->data
;
977 _mesa_PointSize(point
->Size
);
978 _mesa_set_enable(ctx
, GL_POINT_SMOOTH
, point
->SmoothFlag
);
979 if (ctx
->Extensions
.EXT_point_parameters
) {
980 _mesa_PointParameterfvEXT(GL_DISTANCE_ATTENUATION_EXT
,
982 _mesa_PointParameterfEXT(GL_POINT_SIZE_MIN_EXT
,
984 _mesa_PointParameterfEXT(GL_POINT_SIZE_MAX_EXT
,
986 _mesa_PointParameterfEXT(GL_POINT_FADE_THRESHOLD_SIZE_EXT
,
989 if (ctx
->Extensions
.NV_point_sprite
) {
991 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
992 _mesa_TexEnvi(GL_POINT_SPRITE_NV
, GL_COORD_REPLACE_NV
,
993 (GLint
) point
->CoordReplace
[u
]);
995 _mesa_set_enable(ctx
, GL_POINT_SPRITE_NV
,point
->PointSprite
);
996 _mesa_PointParameteriNV(GL_POINT_SPRITE_R_MODE_NV
,
997 ctx
->Point
.SpriteRMode
);
1001 case GL_POLYGON_BIT
:
1003 const struct gl_polygon_attrib
*polygon
;
1004 polygon
= (const struct gl_polygon_attrib
*) attr
->data
;
1005 _mesa_CullFace(polygon
->CullFaceMode
);
1006 _mesa_FrontFace(polygon
->FrontFace
);
1007 _mesa_PolygonMode(GL_FRONT
, polygon
->FrontMode
);
1008 _mesa_PolygonMode(GL_BACK
, polygon
->BackMode
);
1009 _mesa_PolygonOffset(polygon
->OffsetFactor
,
1010 polygon
->OffsetUnits
);
1011 _mesa_set_enable(ctx
, GL_POLYGON_SMOOTH
, polygon
->SmoothFlag
);
1012 _mesa_set_enable(ctx
, GL_POLYGON_STIPPLE
, polygon
->StippleFlag
);
1013 _mesa_set_enable(ctx
, GL_CULL_FACE
, polygon
->CullFlag
);
1014 _mesa_set_enable(ctx
, GL_POLYGON_OFFSET_POINT
,
1015 polygon
->OffsetPoint
);
1016 _mesa_set_enable(ctx
, GL_POLYGON_OFFSET_LINE
,
1017 polygon
->OffsetLine
);
1018 _mesa_set_enable(ctx
, GL_POLYGON_OFFSET_FILL
,
1019 polygon
->OffsetFill
);
1022 case GL_POLYGON_STIPPLE_BIT
:
1023 MEMCPY( ctx
->PolygonStipple
, attr
->data
, 32*sizeof(GLuint
) );
1024 ctx
->NewState
|= _NEW_POLYGONSTIPPLE
;
1025 if (ctx
->Driver
.PolygonStipple
)
1026 ctx
->Driver
.PolygonStipple( ctx
, (const GLubyte
*) attr
->data
);
1028 case GL_SCISSOR_BIT
:
1030 const struct gl_scissor_attrib
*scissor
;
1031 scissor
= (const struct gl_scissor_attrib
*) attr
->data
;
1032 _mesa_Scissor(scissor
->X
, scissor
->Y
,
1033 scissor
->Width
, scissor
->Height
);
1034 _mesa_set_enable(ctx
, GL_SCISSOR_TEST
, scissor
->Enabled
);
1037 case GL_STENCIL_BUFFER_BIT
:
1039 const GLint face
= 0; /* XXX stencil two side */
1040 const struct gl_stencil_attrib
*stencil
;
1041 stencil
= (const struct gl_stencil_attrib
*) attr
->data
;
1042 _mesa_set_enable(ctx
, GL_STENCIL_TEST
, stencil
->Enabled
);
1043 _mesa_ClearStencil(stencil
->Clear
);
1044 _mesa_StencilFunc(stencil
->Function
[face
], stencil
->Ref
[face
],
1045 stencil
->ValueMask
[face
]);
1046 _mesa_StencilMask(stencil
->WriteMask
[face
]);
1047 _mesa_StencilOp(stencil
->FailFunc
[face
],
1048 stencil
->ZFailFunc
[face
],
1049 stencil
->ZPassFunc
[face
]);
1052 case GL_TRANSFORM_BIT
:
1055 const struct gl_transform_attrib
*xform
;
1056 xform
= (const struct gl_transform_attrib
*) attr
->data
;
1057 _mesa_MatrixMode(xform
->MatrixMode
);
1059 if (ctx
->ProjectionMatrixStack
.Top
->flags
& MAT_DIRTY
)
1060 _math_matrix_analyse( ctx
->ProjectionMatrixStack
.Top
);
1062 /* restore clip planes */
1063 for (i
= 0; i
< MAX_CLIP_PLANES
; i
++) {
1064 const GLuint mask
= 1 << 1;
1065 const GLfloat
*eyePlane
= xform
->EyeUserPlane
[i
];
1066 COPY_4V(ctx
->Transform
.EyeUserPlane
[i
], eyePlane
);
1067 if (xform
->ClipPlanesEnabled
& mask
) {
1068 _mesa_set_enable(ctx
, GL_CLIP_PLANE0
+ i
, GL_TRUE
);
1071 _mesa_set_enable(ctx
, GL_CLIP_PLANE0
+ i
, GL_FALSE
);
1073 if (ctx
->Driver
.ClipPlane
)
1074 ctx
->Driver
.ClipPlane( ctx
, GL_CLIP_PLANE0
+ i
, eyePlane
);
1077 /* normalize/rescale */
1078 if (xform
->Normalize
!= ctx
->Transform
.Normalize
)
1079 _mesa_set_enable(ctx
, GL_NORMALIZE
,ctx
->Transform
.Normalize
);
1080 if (xform
->RescaleNormals
!= ctx
->Transform
.RescaleNormals
)
1081 _mesa_set_enable(ctx
, GL_RESCALE_NORMAL_EXT
,
1082 ctx
->Transform
.RescaleNormals
);
1085 case GL_TEXTURE_BIT
:
1086 /* Take care of texture object reference counters */
1088 const struct gl_texture_attrib
*texture
;
1089 texture
= (const struct gl_texture_attrib
*) attr
->data
;
1090 pop_texture_group(ctx
, texture
);
1091 ctx
->NewState
|= _NEW_TEXTURE
;
1094 case GL_VIEWPORT_BIT
:
1096 const struct gl_viewport_attrib
*vp
;
1097 vp
= (const struct gl_viewport_attrib
*) attr
->data
;
1098 _mesa_Viewport(vp
->X
, vp
->Y
, vp
->Width
, vp
->Height
);
1099 _mesa_DepthRange(vp
->Near
, vp
->Far
);
1102 case GL_MULTISAMPLE_BIT_ARB
:
1104 const struct gl_multisample_attrib
*ms
;
1105 ms
= (const struct gl_multisample_attrib
*) attr
->data
;
1106 _mesa_SampleCoverageARB(ms
->SampleCoverageValue
,
1107 ms
->SampleCoverageInvert
);
1112 _mesa_problem( ctx
, "Bad attrib flag in PopAttrib");
1124 #define GL_CLIENT_PACK_BIT (1<<20)
1125 #define GL_CLIENT_UNPACK_BIT (1<<21)
1129 _mesa_PushClientAttrib(GLbitfield mask
)
1131 struct gl_attrib_node
*newnode
;
1132 struct gl_attrib_node
*head
;
1134 GET_CURRENT_CONTEXT(ctx
);
1135 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1137 if (ctx
->ClientAttribStackDepth
>= MAX_CLIENT_ATTRIB_STACK_DEPTH
) {
1138 _mesa_error( ctx
, GL_STACK_OVERFLOW
, "glPushClientAttrib" );
1142 /* Build linked list of attribute nodes which save all attribute */
1143 /* groups specified by the mask. */
1146 if (mask
& GL_CLIENT_PIXEL_STORE_BIT
) {
1147 struct gl_pixelstore_attrib
*attr
;
1148 /* packing attribs */
1149 attr
= MALLOC_STRUCT( gl_pixelstore_attrib
);
1150 MEMCPY( attr
, &ctx
->Pack
, sizeof(struct gl_pixelstore_attrib
) );
1151 newnode
= new_attrib_node( GL_CLIENT_PACK_BIT
);
1152 newnode
->data
= attr
;
1153 newnode
->next
= head
;
1155 /* unpacking attribs */
1156 attr
= MALLOC_STRUCT( gl_pixelstore_attrib
);
1157 MEMCPY( attr
, &ctx
->Unpack
, sizeof(struct gl_pixelstore_attrib
) );
1158 newnode
= new_attrib_node( GL_CLIENT_UNPACK_BIT
);
1159 newnode
->data
= attr
;
1160 newnode
->next
= head
;
1163 if (mask
& GL_CLIENT_VERTEX_ARRAY_BIT
) {
1164 struct gl_array_attrib
*attr
;
1165 attr
= MALLOC_STRUCT( gl_array_attrib
);
1166 MEMCPY( attr
, &ctx
->Array
, sizeof(struct gl_array_attrib
) );
1167 newnode
= new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT
);
1168 newnode
->data
= attr
;
1169 newnode
->next
= head
;
1173 ctx
->ClientAttribStack
[ctx
->ClientAttribStackDepth
] = head
;
1174 ctx
->ClientAttribStackDepth
++;
1181 _mesa_PopClientAttrib(void)
1183 struct gl_attrib_node
*attr
, *next
;
1185 GET_CURRENT_CONTEXT(ctx
);
1186 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
1188 if (ctx
->ClientAttribStackDepth
== 0) {
1189 _mesa_error( ctx
, GL_STACK_UNDERFLOW
, "glPopClientAttrib" );
1193 ctx
->ClientAttribStackDepth
--;
1194 attr
= ctx
->ClientAttribStack
[ctx
->ClientAttribStackDepth
];
1197 switch (attr
->kind
) {
1198 case GL_CLIENT_PACK_BIT
:
1199 MEMCPY( &ctx
->Pack
, attr
->data
,
1200 sizeof(struct gl_pixelstore_attrib
) );
1201 ctx
->NewState
|= _NEW_PACKUNPACK
;
1203 case GL_CLIENT_UNPACK_BIT
:
1204 MEMCPY( &ctx
->Unpack
, attr
->data
,
1205 sizeof(struct gl_pixelstore_attrib
) );
1206 ctx
->NewState
|= _NEW_PACKUNPACK
;
1208 case GL_CLIENT_VERTEX_ARRAY_BIT
:
1209 MEMCPY( &ctx
->Array
, attr
->data
,
1210 sizeof(struct gl_array_attrib
) );
1211 ctx
->NewState
|= _NEW_ARRAY
;
1214 _mesa_problem( ctx
, "Bad attrib flag in PopClientAttrib");