1 /* $Id: attrib.c,v 1.21 2000/04/07 16:27:54 brianp Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999-2000 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.
38 #include "simple_list.h"
47 * Allocate a new attribute state node. These nodes have a
48 * "kind" value and a pointer to a struct of state data.
50 static struct gl_attrib_node
*
51 new_attrib_node( GLbitfield kind
)
53 struct gl_attrib_node
*an
= MALLOC_STRUCT(gl_attrib_node
);
63 * Copy texture object state from one texture object to another.
66 copy_texobj_state( struct gl_texture_object
*dest
,
67 const struct gl_texture_object
*src
)
70 dest->Name = src->Name;
71 dest->Dimensions = src->Dimensions;
73 dest
->Priority
= src
->Priority
;
74 dest
->BorderColor
[0] = src
->BorderColor
[0];
75 dest
->BorderColor
[1] = src
->BorderColor
[1];
76 dest
->BorderColor
[2] = src
->BorderColor
[2];
77 dest
->BorderColor
[3] = src
->BorderColor
[3];
78 dest
->WrapS
= src
->WrapS
;
79 dest
->WrapT
= src
->WrapT
;
80 dest
->WrapR
= src
->WrapR
;
81 dest
->MinFilter
= src
->MinFilter
;
82 dest
->MagFilter
= src
->MagFilter
;
83 dest
->MinLod
= src
->MinLod
;
84 dest
->MaxLod
= src
->MaxLod
;
85 dest
->BaseLevel
= src
->BaseLevel
;
86 dest
->MaxLevel
= src
->MaxLevel
;
89 dest
->MinMagThresh
= src
->MinMagThresh
;
90 dest
->Palette
= src
->Palette
;
91 dest
->Complete
= src
->Complete
;
92 dest
->SampleFunc
= src
->SampleFunc
;
98 _mesa_PushAttrib(GLbitfield mask
)
100 struct gl_attrib_node
*newnode
;
101 struct gl_attrib_node
*head
;
103 GET_CURRENT_CONTEXT(ctx
);
104 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
, "glPushAttrib");
106 if (MESA_VERBOSE
&VERBOSE_API
)
107 fprintf(stderr
, "glPushAttrib %x\n", (int)mask
);
109 if (ctx
->AttribStackDepth
>=MAX_ATTRIB_STACK_DEPTH
) {
110 gl_error( ctx
, GL_STACK_OVERFLOW
, "glPushAttrib" );
114 /* Build linked list of attribute nodes which save all attribute */
115 /* groups specified by the mask. */
118 if (mask
& GL_ACCUM_BUFFER_BIT
) {
119 struct gl_accum_attrib
*attr
;
120 attr
= MALLOC_STRUCT( gl_accum_attrib
);
121 MEMCPY( attr
, &ctx
->Accum
, sizeof(struct gl_accum_attrib
) );
122 newnode
= new_attrib_node( GL_ACCUM_BUFFER_BIT
);
123 newnode
->data
= attr
;
124 newnode
->next
= head
;
128 if (mask
& GL_COLOR_BUFFER_BIT
) {
129 struct gl_colorbuffer_attrib
*attr
;
130 attr
= MALLOC_STRUCT( gl_colorbuffer_attrib
);
131 MEMCPY( attr
, &ctx
->Color
, sizeof(struct gl_colorbuffer_attrib
) );
132 newnode
= new_attrib_node( GL_COLOR_BUFFER_BIT
);
133 newnode
->data
= attr
;
134 newnode
->next
= head
;
138 if (mask
& GL_CURRENT_BIT
) {
139 struct gl_current_attrib
*attr
;
140 attr
= MALLOC_STRUCT( gl_current_attrib
);
141 MEMCPY( attr
, &ctx
->Current
, sizeof(struct gl_current_attrib
) );
142 newnode
= new_attrib_node( GL_CURRENT_BIT
);
143 newnode
->data
= attr
;
144 newnode
->next
= head
;
148 if (mask
& GL_DEPTH_BUFFER_BIT
) {
149 struct gl_depthbuffer_attrib
*attr
;
150 attr
= MALLOC_STRUCT( gl_depthbuffer_attrib
);
151 MEMCPY( attr
, &ctx
->Depth
, sizeof(struct gl_depthbuffer_attrib
) );
152 newnode
= new_attrib_node( GL_DEPTH_BUFFER_BIT
);
153 newnode
->data
= attr
;
154 newnode
->next
= head
;
158 if (mask
& GL_ENABLE_BIT
) {
159 struct gl_enable_attrib
*attr
;
161 attr
= MALLOC_STRUCT( gl_enable_attrib
);
162 /* Copy enable flags from all other attributes into the enable struct. */
163 attr
->AlphaTest
= ctx
->Color
.AlphaEnabled
;
164 attr
->AutoNormal
= ctx
->Eval
.AutoNormal
;
165 attr
->Blend
= ctx
->Color
.BlendEnabled
;
166 for (i
=0;i
<MAX_CLIP_PLANES
;i
++) {
167 attr
->ClipPlane
[i
] = ctx
->Transform
.ClipEnabled
[i
];
169 attr
->ColorMaterial
= ctx
->Light
.ColorMaterialEnabled
;
170 attr
->CullFace
= ctx
->Polygon
.CullFlag
;
171 attr
->DepthTest
= ctx
->Depth
.Test
;
172 attr
->Dither
= ctx
->Color
.DitherFlag
;
173 attr
->Fog
= ctx
->Fog
.Enabled
;
174 for (i
=0;i
<MAX_LIGHTS
;i
++) {
175 attr
->Light
[i
] = ctx
->Light
.Light
[i
].Enabled
;
177 attr
->Lighting
= ctx
->Light
.Enabled
;
178 attr
->LineSmooth
= ctx
->Line
.SmoothFlag
;
179 attr
->LineStipple
= ctx
->Line
.StippleFlag
;
180 attr
->Histogram
= ctx
->Pixel
.HistogramEnabled
;
181 attr
->MinMax
= ctx
->Pixel
.MinMaxEnabled
;
182 attr
->IndexLogicOp
= ctx
->Color
.IndexLogicOpEnabled
;
183 attr
->ColorLogicOp
= ctx
->Color
.ColorLogicOpEnabled
;
184 attr
->Map1Color4
= ctx
->Eval
.Map1Color4
;
185 attr
->Map1Index
= ctx
->Eval
.Map1Index
;
186 attr
->Map1Normal
= ctx
->Eval
.Map1Normal
;
187 attr
->Map1TextureCoord1
= ctx
->Eval
.Map1TextureCoord1
;
188 attr
->Map1TextureCoord2
= ctx
->Eval
.Map1TextureCoord2
;
189 attr
->Map1TextureCoord3
= ctx
->Eval
.Map1TextureCoord3
;
190 attr
->Map1TextureCoord4
= ctx
->Eval
.Map1TextureCoord4
;
191 attr
->Map1Vertex3
= ctx
->Eval
.Map1Vertex3
;
192 attr
->Map1Vertex4
= ctx
->Eval
.Map1Vertex4
;
193 attr
->Map2Color4
= ctx
->Eval
.Map2Color4
;
194 attr
->Map2Index
= ctx
->Eval
.Map2Index
;
195 attr
->Map2Normal
= ctx
->Eval
.Map2Normal
;
196 attr
->Map2TextureCoord1
= ctx
->Eval
.Map2TextureCoord1
;
197 attr
->Map2TextureCoord2
= ctx
->Eval
.Map2TextureCoord2
;
198 attr
->Map2TextureCoord3
= ctx
->Eval
.Map2TextureCoord3
;
199 attr
->Map2TextureCoord4
= ctx
->Eval
.Map2TextureCoord4
;
200 attr
->Map2Vertex3
= ctx
->Eval
.Map2Vertex3
;
201 attr
->Map2Vertex4
= ctx
->Eval
.Map2Vertex4
;
202 attr
->Normalize
= ctx
->Transform
.Normalize
;
203 attr
->PixelTexture
= ctx
->Pixel
.PixelTextureEnabled
;
204 attr
->PointSmooth
= ctx
->Point
.SmoothFlag
;
205 attr
->PolygonOffsetPoint
= ctx
->Polygon
.OffsetPoint
;
206 attr
->PolygonOffsetLine
= ctx
->Polygon
.OffsetLine
;
207 attr
->PolygonOffsetFill
= ctx
->Polygon
.OffsetFill
;
208 attr
->PolygonSmooth
= ctx
->Polygon
.SmoothFlag
;
209 attr
->PolygonStipple
= ctx
->Polygon
.StippleFlag
;
210 attr
->RescaleNormals
= ctx
->Transform
.RescaleNormals
;
211 attr
->Scissor
= ctx
->Scissor
.Enabled
;
212 attr
->Stencil
= ctx
->Stencil
.Enabled
;
213 attr
->Texture
= ctx
->Texture
.Enabled
;
214 for (i
=0; i
<MAX_TEXTURE_UNITS
; i
++) {
215 attr
->TexGen
[i
] = ctx
->Texture
.Unit
[i
].TexGenEnabled
;
217 newnode
= new_attrib_node( GL_ENABLE_BIT
);
218 newnode
->data
= attr
;
219 newnode
->next
= head
;
223 if (mask
& GL_EVAL_BIT
) {
224 struct gl_eval_attrib
*attr
;
225 attr
= MALLOC_STRUCT( gl_eval_attrib
);
226 MEMCPY( attr
, &ctx
->Eval
, sizeof(struct gl_eval_attrib
) );
227 newnode
= new_attrib_node( GL_EVAL_BIT
);
228 newnode
->data
= attr
;
229 newnode
->next
= head
;
233 if (mask
& GL_FOG_BIT
) {
234 struct gl_fog_attrib
*attr
;
235 attr
= MALLOC_STRUCT( gl_fog_attrib
);
236 MEMCPY( attr
, &ctx
->Fog
, sizeof(struct gl_fog_attrib
) );
237 newnode
= new_attrib_node( GL_FOG_BIT
);
238 newnode
->data
= attr
;
239 newnode
->next
= head
;
243 if (mask
& GL_HINT_BIT
) {
244 struct gl_hint_attrib
*attr
;
245 attr
= MALLOC_STRUCT( gl_hint_attrib
);
246 MEMCPY( attr
, &ctx
->Hint
, sizeof(struct gl_hint_attrib
) );
247 newnode
= new_attrib_node( GL_HINT_BIT
);
248 newnode
->data
= attr
;
249 newnode
->next
= head
;
253 if (mask
& GL_LIGHTING_BIT
) {
254 struct gl_light_attrib
*attr
;
255 attr
= MALLOC_STRUCT( gl_light_attrib
);
256 MEMCPY( attr
, &ctx
->Light
, sizeof(struct gl_light_attrib
) );
257 newnode
= new_attrib_node( GL_LIGHTING_BIT
);
258 newnode
->data
= attr
;
259 newnode
->next
= head
;
263 if (mask
& GL_LINE_BIT
) {
264 struct gl_line_attrib
*attr
;
265 attr
= MALLOC_STRUCT( gl_line_attrib
);
266 MEMCPY( attr
, &ctx
->Line
, sizeof(struct gl_line_attrib
) );
267 newnode
= new_attrib_node( GL_LINE_BIT
);
268 newnode
->data
= attr
;
269 newnode
->next
= head
;
273 if (mask
& GL_LIST_BIT
) {
274 struct gl_list_attrib
*attr
;
275 attr
= MALLOC_STRUCT( gl_list_attrib
);
276 MEMCPY( attr
, &ctx
->List
, sizeof(struct gl_list_attrib
) );
277 newnode
= new_attrib_node( GL_LIST_BIT
);
278 newnode
->data
= attr
;
279 newnode
->next
= head
;
283 if (mask
& GL_PIXEL_MODE_BIT
) {
284 struct gl_pixel_attrib
*attr
;
285 attr
= MALLOC_STRUCT( gl_pixel_attrib
);
286 MEMCPY( attr
, &ctx
->Pixel
, sizeof(struct gl_pixel_attrib
) );
287 newnode
= new_attrib_node( GL_PIXEL_MODE_BIT
);
288 newnode
->data
= attr
;
289 newnode
->next
= head
;
293 if (mask
& GL_POINT_BIT
) {
294 struct gl_point_attrib
*attr
;
295 attr
= MALLOC_STRUCT( gl_point_attrib
);
296 MEMCPY( attr
, &ctx
->Point
, sizeof(struct gl_point_attrib
) );
297 newnode
= new_attrib_node( GL_POINT_BIT
);
298 newnode
->data
= attr
;
299 newnode
->next
= head
;
303 if (mask
& GL_POLYGON_BIT
) {
304 struct gl_polygon_attrib
*attr
;
305 attr
= MALLOC_STRUCT( gl_polygon_attrib
);
306 MEMCPY( attr
, &ctx
->Polygon
, sizeof(struct gl_polygon_attrib
) );
307 newnode
= new_attrib_node( GL_POLYGON_BIT
);
308 newnode
->data
= attr
;
309 newnode
->next
= head
;
313 if (mask
& GL_POLYGON_STIPPLE_BIT
) {
315 stipple
= (GLuint
*) MALLOC( 32*sizeof(GLuint
) );
316 MEMCPY( stipple
, ctx
->PolygonStipple
, 32*sizeof(GLuint
) );
317 newnode
= new_attrib_node( GL_POLYGON_STIPPLE_BIT
);
318 newnode
->data
= stipple
;
319 newnode
->next
= head
;
323 if (mask
& GL_SCISSOR_BIT
) {
324 struct gl_scissor_attrib
*attr
;
325 attr
= MALLOC_STRUCT( gl_scissor_attrib
);
326 MEMCPY( attr
, &ctx
->Scissor
, sizeof(struct gl_scissor_attrib
) );
327 newnode
= new_attrib_node( GL_SCISSOR_BIT
);
328 newnode
->data
= attr
;
329 newnode
->next
= head
;
333 if (mask
& GL_STENCIL_BUFFER_BIT
) {
334 struct gl_stencil_attrib
*attr
;
335 attr
= MALLOC_STRUCT( gl_stencil_attrib
);
336 MEMCPY( attr
, &ctx
->Stencil
, sizeof(struct gl_stencil_attrib
) );
337 newnode
= new_attrib_node( GL_STENCIL_BUFFER_BIT
);
338 newnode
->data
= attr
;
339 newnode
->next
= head
;
343 if (mask
& GL_TEXTURE_BIT
) {
344 struct gl_texture_attrib
*attr
;
346 /* Take care of texture object reference counters */
347 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
348 ctx
->Texture
.Unit
[u
].CurrentD
[1]->RefCount
++;
349 ctx
->Texture
.Unit
[u
].CurrentD
[2]->RefCount
++;
350 ctx
->Texture
.Unit
[u
].CurrentD
[3]->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 copy_texobj_state(&attr
->Unit
[u
].Saved1D
, attr
->Unit
[u
].CurrentD
[1]);
357 copy_texobj_state(&attr
->Unit
[u
].Saved2D
, attr
->Unit
[u
].CurrentD
[2]);
358 copy_texobj_state(&attr
->Unit
[u
].Saved3D
, attr
->Unit
[u
].CurrentD
[3]);
360 newnode
= new_attrib_node( GL_TEXTURE_BIT
);
361 newnode
->data
= attr
;
362 newnode
->next
= head
;
366 if (mask
& GL_TRANSFORM_BIT
) {
367 struct gl_transform_attrib
*attr
;
368 attr
= MALLOC_STRUCT( gl_transform_attrib
);
369 MEMCPY( attr
, &ctx
->Transform
, sizeof(struct gl_transform_attrib
) );
370 newnode
= new_attrib_node( GL_TRANSFORM_BIT
);
371 newnode
->data
= attr
;
372 newnode
->next
= head
;
376 if (mask
& GL_VIEWPORT_BIT
) {
377 struct gl_viewport_attrib
*attr
;
378 attr
= MALLOC_STRUCT( gl_viewport_attrib
);
379 MEMCPY( attr
, &ctx
->Viewport
, sizeof(struct gl_viewport_attrib
) );
380 newnode
= new_attrib_node( GL_VIEWPORT_BIT
);
381 newnode
->data
= attr
;
382 newnode
->next
= head
;
386 ctx
->AttribStack
[ctx
->AttribStackDepth
] = head
;
387 ctx
->AttribStackDepth
++;
393 * This function is kind of long just because we have to call a lot
394 * of device driver functions to update device driver state.
397 _mesa_PopAttrib(void)
399 struct gl_attrib_node
*attr
, *next
;
400 GET_CURRENT_CONTEXT(ctx
);
402 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
, "glPopAttrib");
405 if (ctx
->AttribStackDepth
==0) {
406 gl_error( ctx
, GL_STACK_UNDERFLOW
, "glPopAttrib" );
410 ctx
->AttribStackDepth
--;
411 attr
= ctx
->AttribStack
[ctx
->AttribStackDepth
];
415 if (MESA_VERBOSE
&VERBOSE_API
)
416 fprintf(stderr
, "glPopAttrib %s\n", gl_lookup_enum_by_nr(attr
->kind
));
418 switch (attr
->kind
) {
419 case GL_ACCUM_BUFFER_BIT
:
420 MEMCPY( &ctx
->Accum
, attr
->data
, sizeof(struct gl_accum_attrib
) );
422 case GL_COLOR_BUFFER_BIT
:
424 GLenum oldDrawBuffer
= ctx
->Color
.DrawBuffer
;
425 GLenum oldAlphaFunc
= ctx
->Color
.AlphaFunc
;
426 GLubyte oldAlphaRef
= ctx
->Color
.AlphaRef
;
427 GLenum oldBlendSrc
= ctx
->Color
.BlendSrcRGB
;
428 GLenum oldBlendDst
= ctx
->Color
.BlendDstRGB
;
429 GLenum oldLogicOp
= ctx
->Color
.LogicOp
;
430 MEMCPY( &ctx
->Color
, attr
->data
,
431 sizeof(struct gl_colorbuffer_attrib
) );
432 if (ctx
->Color
.DrawBuffer
!= oldDrawBuffer
) {
433 _mesa_DrawBuffer( ctx
->Color
.DrawBuffer
);
435 if ((ctx
->Color
.BlendSrcRGB
!= oldBlendSrc
||
436 ctx
->Color
.BlendDstRGB
!= oldBlendDst
) &&
437 ctx
->Driver
.BlendFunc
)
438 (*ctx
->Driver
.BlendFunc
)( ctx
, ctx
->Color
.BlendSrcRGB
,
439 ctx
->Color
.BlendDstRGB
);
440 if (ctx
->Color
.LogicOp
!= oldLogicOp
&&
441 ctx
->Driver
.LogicOpcode
) {
442 ctx
->Driver
.LogicOpcode( ctx
, ctx
->Color
.LogicOp
);
444 if (ctx
->Visual
->RGBAflag
) {
445 GLubyte r
= (GLint
) (ctx
->Color
.ClearColor
[0] * 255.0F
);
446 GLubyte g
= (GLint
) (ctx
->Color
.ClearColor
[1] * 255.0F
);
447 GLubyte b
= (GLint
) (ctx
->Color
.ClearColor
[2] * 255.0F
);
448 GLubyte a
= (GLint
) (ctx
->Color
.ClearColor
[3] * 255.0F
);
449 (*ctx
->Driver
.ClearColor
)( ctx
, r
, g
, b
, a
);
450 if ((ctx
->Color
.AlphaFunc
!= oldAlphaFunc
||
451 ctx
->Color
.AlphaRef
!= oldAlphaRef
) &&
452 ctx
->Driver
.AlphaFunc
)
453 (*ctx
->Driver
.AlphaFunc
)( ctx
, ctx
->Color
.AlphaFunc
,
454 ctx
->Color
.AlphaRef
/ 255.0F
);
455 if (ctx
->Driver
.ColorMask
) {
456 (*ctx
->Driver
.ColorMask
)(ctx
,
457 ctx
->Color
.ColorMask
[0],
458 ctx
->Color
.ColorMask
[1],
459 ctx
->Color
.ColorMask
[2],
460 ctx
->Color
.ColorMask
[3]);
464 (*ctx
->Driver
.ClearIndex
)( ctx
, ctx
->Color
.ClearIndex
);
469 MEMCPY( &ctx
->Current
, attr
->data
,
470 sizeof(struct gl_current_attrib
) );
472 case GL_DEPTH_BUFFER_BIT
:
474 GLenum oldDepthFunc
= ctx
->Depth
.Func
;
475 GLboolean oldDepthMask
= ctx
->Depth
.Mask
;
476 GLfloat oldDepthClear
= ctx
->Depth
.Clear
;
477 MEMCPY( &ctx
->Depth
, attr
->data
,
478 sizeof(struct gl_depthbuffer_attrib
) );
479 if (ctx
->Depth
.Func
!= oldDepthFunc
&& ctx
->Driver
.DepthFunc
)
480 (*ctx
->Driver
.DepthFunc
)( ctx
, ctx
->Depth
.Func
);
481 if (ctx
->Depth
.Mask
!= oldDepthMask
&& ctx
->Driver
.DepthMask
)
482 (*ctx
->Driver
.DepthMask
)( ctx
, ctx
->Depth
.Mask
);
483 if (ctx
->Depth
.Clear
!= oldDepthClear
&& ctx
->Driver
.ClearDepth
)
484 (*ctx
->Driver
.ClearDepth
)( ctx
, ctx
->Depth
.Clear
);
489 const struct gl_enable_attrib
*enable
;
490 enable
= (const struct gl_enable_attrib
*) attr
->data
;
492 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM) \
493 if ((VALUE) != (NEWVALUE)) { \
494 _mesa_set_enable( ctx, ENUM, (NEWVALUE) ); \
497 TEST_AND_UPDATE(ctx
->Color
.AlphaEnabled
, enable
->AlphaTest
, GL_ALPHA_TEST
);
498 TEST_AND_UPDATE(ctx
->Transform
.Normalize
, enable
->AutoNormal
, GL_NORMALIZE
);
499 TEST_AND_UPDATE(ctx
->Color
.BlendEnabled
, enable
->Blend
, GL_BLEND
);
502 for (i
=0;i
<MAX_CLIP_PLANES
;i
++) {
503 if (ctx
->Transform
.ClipEnabled
[i
] != enable
->ClipPlane
[i
])
504 _mesa_set_enable( ctx
, (GLenum
) (GL_CLIP_PLANE0
+ i
), enable
->ClipPlane
[i
] );
507 TEST_AND_UPDATE(ctx
->Light
.ColorMaterialEnabled
, enable
->ColorMaterial
, GL_COLOR_MATERIAL
);
508 TEST_AND_UPDATE(ctx
->Polygon
.CullFlag
, enable
->CullFace
, GL_CULL_FACE
);
509 TEST_AND_UPDATE(ctx
->Depth
.Test
, enable
->DepthTest
, GL_DEPTH_TEST
);
510 TEST_AND_UPDATE(ctx
->Color
.DitherFlag
, enable
->Dither
, GL_DITHER
);
511 TEST_AND_UPDATE(ctx
->Fog
.Enabled
, enable
->Fog
, GL_FOG
);
512 TEST_AND_UPDATE(ctx
->Light
.Enabled
, enable
->Lighting
, GL_LIGHTING
);
513 TEST_AND_UPDATE(ctx
->Line
.SmoothFlag
, enable
->LineSmooth
, GL_LINE_SMOOTH
);
514 TEST_AND_UPDATE(ctx
->Line
.StippleFlag
, enable
->LineStipple
, GL_LINE_STIPPLE
);
515 TEST_AND_UPDATE(ctx
->Color
.IndexLogicOpEnabled
, enable
->IndexLogicOp
, GL_INDEX_LOGIC_OP
);
516 TEST_AND_UPDATE(ctx
->Color
.ColorLogicOpEnabled
, enable
->ColorLogicOp
, GL_COLOR_LOGIC_OP
);
517 TEST_AND_UPDATE(ctx
->Eval
.Map1Color4
, enable
->Map1Color4
, GL_MAP1_COLOR_4
);
518 TEST_AND_UPDATE(ctx
->Eval
.Map1Index
, enable
->Map1Index
, GL_MAP1_INDEX
);
519 TEST_AND_UPDATE(ctx
->Eval
.Map1Normal
, enable
->Map1Normal
, GL_MAP1_NORMAL
);
520 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord1
, enable
->Map1TextureCoord1
, GL_MAP1_TEXTURE_COORD_1
);
521 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord2
, enable
->Map1TextureCoord2
, GL_MAP1_TEXTURE_COORD_2
);
522 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord3
, enable
->Map1TextureCoord3
, GL_MAP1_TEXTURE_COORD_3
);
523 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord4
, enable
->Map1TextureCoord4
, GL_MAP1_TEXTURE_COORD_4
);
524 TEST_AND_UPDATE(ctx
->Eval
.Map1Vertex3
, enable
->Map1Vertex3
, GL_MAP1_VERTEX_3
);
525 TEST_AND_UPDATE(ctx
->Eval
.Map1Vertex4
, enable
->Map1Vertex4
, GL_MAP1_VERTEX_4
);
526 TEST_AND_UPDATE(ctx
->Eval
.Map2Color4
, enable
->Map2Color4
, GL_MAP2_COLOR_4
);
527 TEST_AND_UPDATE(ctx
->Eval
.Map2Index
, enable
->Map2Index
, GL_MAP2_INDEX
);
528 TEST_AND_UPDATE(ctx
->Eval
.Map2Normal
, enable
->Map2Normal
, GL_MAP2_NORMAL
);
529 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord1
, enable
->Map2TextureCoord1
, GL_MAP2_TEXTURE_COORD_1
);
530 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord2
, enable
->Map2TextureCoord2
, GL_MAP2_TEXTURE_COORD_2
);
531 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord3
, enable
->Map2TextureCoord3
, GL_MAP2_TEXTURE_COORD_3
);
532 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord4
, enable
->Map2TextureCoord4
, GL_MAP2_TEXTURE_COORD_4
);
533 TEST_AND_UPDATE(ctx
->Eval
.Map2Vertex3
, enable
->Map2Vertex3
, GL_MAP2_VERTEX_3
);
534 TEST_AND_UPDATE(ctx
->Eval
.Map2Vertex4
, enable
->Map2Vertex4
, GL_MAP2_VERTEX_4
);
535 TEST_AND_UPDATE(ctx
->Transform
.Normalize
, enable
->Normalize
, GL_NORMALIZE
);
536 TEST_AND_UPDATE(ctx
->Transform
.RescaleNormals
, enable
->RescaleNormals
, GL_RESCALE_NORMAL_EXT
);
537 TEST_AND_UPDATE(ctx
->Pixel
.PixelTextureEnabled
, enable
->PixelTexture
, GL_POINT_SMOOTH
);
538 TEST_AND_UPDATE(ctx
->Point
.SmoothFlag
, enable
->PointSmooth
, GL_POINT_SMOOTH
);
539 TEST_AND_UPDATE(ctx
->Polygon
.OffsetPoint
, enable
->PolygonOffsetPoint
, GL_POLYGON_OFFSET_POINT
);
540 TEST_AND_UPDATE(ctx
->Polygon
.OffsetLine
, enable
->PolygonOffsetLine
, GL_POLYGON_OFFSET_LINE
);
541 TEST_AND_UPDATE(ctx
->Polygon
.OffsetFill
, enable
->PolygonOffsetFill
, GL_POLYGON_OFFSET_FILL
);
542 TEST_AND_UPDATE(ctx
->Polygon
.SmoothFlag
, enable
->PolygonSmooth
, GL_POLYGON_SMOOTH
);
543 TEST_AND_UPDATE(ctx
->Polygon
.StippleFlag
, enable
->PolygonStipple
, GL_POLYGON_STIPPLE
);
544 TEST_AND_UPDATE(ctx
->Scissor
.Enabled
, enable
->Scissor
, GL_SCISSOR_TEST
);
545 TEST_AND_UPDATE(ctx
->Stencil
.Enabled
, enable
->Stencil
, GL_STENCIL_TEST
);
546 if (ctx
->Texture
.Enabled
!= enable
->Texture
) {
547 ctx
->Texture
.Enabled
= enable
->Texture
;
548 if (ctx
->Driver
.Enable
) {
549 if (ctx
->Driver
.ActiveTexture
)
550 (*ctx
->Driver
.ActiveTexture
)( ctx
, 0 );
551 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_1D
, (GLboolean
) (enable
->Texture
& TEXTURE0_1D
) );
552 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_2D
, (GLboolean
) (enable
->Texture
& TEXTURE0_2D
) );
553 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_3D
, (GLboolean
) (enable
->Texture
& TEXTURE0_3D
) );
554 if (ctx
->Driver
.ActiveTexture
)
555 (*ctx
->Driver
.ActiveTexture
)( ctx
, 1 );
556 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_1D
, (GLboolean
) (enable
->Texture
& TEXTURE1_1D
) );
557 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_2D
, (GLboolean
) (enable
->Texture
& TEXTURE1_2D
) );
558 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_3D
, (GLboolean
) (enable
->Texture
& TEXTURE1_3D
) );
559 if (ctx
->Driver
.ActiveTexture
)
560 (*ctx
->Driver
.ActiveTexture
)( ctx
, ctx
->Texture
.CurrentUnit
);
563 #undef TEST_AND_UPDATE
566 for (i
=0; i
<MAX_TEXTURE_UNITS
; i
++) {
567 if (ctx
->Texture
.Unit
[i
].TexGenEnabled
!= enable
->TexGen
[i
]) {
568 ctx
->Texture
.Unit
[i
].TexGenEnabled
= enable
->TexGen
[i
];
570 /* ctx->Enabled recalculated in state change
573 if (ctx
->Driver
.Enable
) {
574 if (ctx
->Driver
.ActiveTexture
)
575 (*ctx
->Driver
.ActiveTexture
)( ctx
, i
);
576 if (enable
->TexGen
[i
] & S_BIT
)
577 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_S
, GL_TRUE
);
579 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_S
, GL_FALSE
);
580 if (enable
->TexGen
[i
] & T_BIT
)
581 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_T
, GL_TRUE
);
583 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_T
, GL_FALSE
);
584 if (enable
->TexGen
[i
] & R_BIT
)
585 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_R
, GL_TRUE
);
587 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_R
, GL_FALSE
);
588 if (enable
->TexGen
[i
] & Q_BIT
)
589 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_Q
, GL_TRUE
);
591 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_Q
, GL_FALSE
);
595 if (ctx
->Driver
.ActiveTexture
)
596 (*ctx
->Driver
.ActiveTexture
)( ctx
, ctx
->Texture
.CurrentUnit
);
601 MEMCPY( &ctx
->Eval
, attr
->data
, sizeof(struct gl_eval_attrib
) );
605 GLboolean anyChange
= (GLboolean
) (memcmp( &ctx
->Fog
, attr
->data
, sizeof(struct gl_fog_attrib
) ) != 0);
606 MEMCPY( &ctx
->Fog
, attr
->data
, sizeof(struct gl_fog_attrib
) );
607 if (anyChange
&& ctx
->Driver
.Fogfv
) {
608 const GLfloat mode
= (GLfloat
) ctx
->Fog
.Mode
;
609 const GLfloat density
= ctx
->Fog
.Density
;
610 const GLfloat start
= ctx
->Fog
.Start
;
611 const GLfloat end
= ctx
->Fog
.End
;
612 const GLfloat index
= ctx
->Fog
.Index
;
613 (*ctx
->Driver
.Fogfv
)( ctx
, GL_FOG_MODE
, &mode
);
614 (*ctx
->Driver
.Fogfv
)( ctx
, GL_FOG_DENSITY
, &density
);
615 (*ctx
->Driver
.Fogfv
)( ctx
, GL_FOG_START
, &start
);
616 (*ctx
->Driver
.Fogfv
)( ctx
, GL_FOG_END
, &end
);
617 (*ctx
->Driver
.Fogfv
)( ctx
, GL_FOG_INDEX
, &index
);
618 (*ctx
->Driver
.Fogfv
)( ctx
, GL_FOG_COLOR
, ctx
->Fog
.Color
);
620 ctx
->Enabled
&= ~ENABLE_FOG
;
621 if (ctx
->Fog
.Enabled
) ctx
->Enabled
|= ENABLE_FOG
;
625 MEMCPY( &ctx
->Hint
, attr
->data
, sizeof(struct gl_hint_attrib
) );
626 if (ctx
->Driver
.Hint
) {
627 (*ctx
->Driver
.Hint
)( ctx
, GL_PERSPECTIVE_CORRECTION_HINT
,
628 ctx
->Hint
.PerspectiveCorrection
);
629 (*ctx
->Driver
.Hint
)( ctx
, GL_POINT_SMOOTH_HINT
,
630 ctx
->Hint
.PointSmooth
);
631 (*ctx
->Driver
.Hint
)( ctx
, GL_LINE_SMOOTH_HINT
,
632 ctx
->Hint
.LineSmooth
);
633 (*ctx
->Driver
.Hint
)( ctx
, GL_POLYGON_SMOOTH_HINT
,
634 ctx
->Hint
.PolygonSmooth
);
635 (*ctx
->Driver
.Hint
)( ctx
, GL_FOG_HINT
, ctx
->Hint
.Fog
);
638 case GL_LIGHTING_BIT
:
639 MEMCPY( &ctx
->Light
, attr
->data
, sizeof(struct gl_light_attrib
) );
640 if (ctx
->Driver
.Enable
) {
642 for (i
= 0; i
< MAX_LIGHTS
; i
++) {
643 GLenum light
= (GLenum
) (GL_LIGHT0
+ i
);
644 (*ctx
->Driver
.Enable
)( ctx
, light
, ctx
->Light
.Light
[i
].Enabled
);
646 (*ctx
->Driver
.Enable
)( ctx
, GL_LIGHTING
, ctx
->Light
.Enabled
);
648 if (ctx
->Light
.ShadeModel
== GL_FLAT
)
649 ctx
->TriangleCaps
|= DD_FLATSHADE
;
651 ctx
->TriangleCaps
&= ~DD_FLATSHADE
;
652 if (ctx
->Driver
.ShadeModel
)
653 (*ctx
->Driver
.ShadeModel
)(ctx
, ctx
->Light
.ShadeModel
);
654 ctx
->Enabled
&= ~ENABLE_LIGHT
;
655 if (ctx
->Light
.Enabled
&& !is_empty_list(&ctx
->Light
.EnabledList
))
656 ctx
->Enabled
|= ENABLE_LIGHT
;
659 MEMCPY( &ctx
->Line
, attr
->data
, sizeof(struct gl_line_attrib
) );
660 if (ctx
->Driver
.Enable
) {
661 (*ctx
->Driver
.Enable
)( ctx
, GL_LINE_SMOOTH
, ctx
->Line
.SmoothFlag
);
662 (*ctx
->Driver
.Enable
)( ctx
, GL_LINE_STIPPLE
, ctx
->Line
.StippleFlag
);
664 if (ctx
->Driver
.LineStipple
)
665 (*ctx
->Driver
.LineStipple
)(ctx
, ctx
->Line
.StippleFactor
,
666 ctx
->Line
.StipplePattern
);
667 if (ctx
->Driver
.LineWidth
)
668 (*ctx
->Driver
.LineWidth
)(ctx
, ctx
->Line
.Width
);
671 MEMCPY( &ctx
->List
, attr
->data
, sizeof(struct gl_list_attrib
) );
673 case GL_PIXEL_MODE_BIT
:
674 MEMCPY( &ctx
->Pixel
, attr
->data
, sizeof(struct gl_pixel_attrib
) );
677 MEMCPY( &ctx
->Point
, attr
->data
, sizeof(struct gl_point_attrib
) );
678 if (ctx
->Driver
.Enable
)
679 (*ctx
->Driver
.Enable
)( ctx
, GL_POINT_SMOOTH
, ctx
->Point
.SmoothFlag
);
683 GLenum oldFrontMode
= ctx
->Polygon
.FrontMode
;
684 GLenum oldBackMode
= ctx
->Polygon
.BackMode
;
685 MEMCPY( &ctx
->Polygon
, attr
->data
,
686 sizeof(struct gl_polygon_attrib
) );
687 if ((ctx
->Polygon
.FrontMode
!= oldFrontMode
||
688 ctx
->Polygon
.BackMode
!= oldBackMode
) &&
689 ctx
->Driver
.PolygonMode
) {
690 (*ctx
->Driver
.PolygonMode
)( ctx
, GL_FRONT
, ctx
->Polygon
.FrontMode
);
691 (*ctx
->Driver
.PolygonMode
)( ctx
, GL_BACK
, ctx
->Polygon
.BackMode
);
693 if (ctx
->Driver
.CullFace
)
694 ctx
->Driver
.CullFace( ctx
, ctx
->Polygon
.CullFaceMode
);
696 if (ctx
->Driver
.FrontFace
)
697 ctx
->Driver
.FrontFace( ctx
, ctx
->Polygon
.FrontFace
);
699 if (ctx
->Driver
.Enable
)
700 (*ctx
->Driver
.Enable
)( ctx
, GL_POLYGON_SMOOTH
, ctx
->Polygon
.SmoothFlag
);
703 case GL_POLYGON_STIPPLE_BIT
:
704 MEMCPY( ctx
->PolygonStipple
, attr
->data
, 32*sizeof(GLuint
) );
705 if (ctx
->Driver
.PolygonStipple
)
706 ctx
->Driver
.PolygonStipple( ctx
, (const GLubyte
*) attr
->data
);
709 MEMCPY( &ctx
->Scissor
, attr
->data
,
710 sizeof(struct gl_scissor_attrib
) );
711 if (ctx
->Driver
.Enable
)
712 (*ctx
->Driver
.Enable
)( ctx
, GL_SCISSOR_TEST
, ctx
->Scissor
.Enabled
);
713 if (ctx
->Driver
.Scissor
)
714 ctx
->Driver
.Scissor( ctx
, ctx
->Scissor
.X
, ctx
->Scissor
.Y
,
715 ctx
->Scissor
.Width
, ctx
->Scissor
.Height
);
717 case GL_STENCIL_BUFFER_BIT
:
718 MEMCPY( &ctx
->Stencil
, attr
->data
,
719 sizeof(struct gl_stencil_attrib
) );
720 if (ctx
->Driver
.StencilFunc
)
721 (*ctx
->Driver
.StencilFunc
)( ctx
, ctx
->Stencil
.Function
,
722 ctx
->Stencil
.Ref
, ctx
->Stencil
.ValueMask
);
723 if (ctx
->Driver
.StencilMask
)
724 (*ctx
->Driver
.StencilMask
)( ctx
, ctx
->Stencil
.WriteMask
);
725 if (ctx
->Driver
.StencilOp
)
726 (*ctx
->Driver
.StencilOp
)( ctx
, ctx
->Stencil
.FailFunc
,
727 ctx
->Stencil
.ZFailFunc
, ctx
->Stencil
.ZPassFunc
);
728 if (ctx
->Driver
.ClearStencil
)
729 (*ctx
->Driver
.ClearStencil
)( ctx
, ctx
->Stencil
.Clear
);
730 if (ctx
->Driver
.Enable
)
731 (*ctx
->Driver
.Enable
)( ctx
, GL_STENCIL_TEST
, ctx
->Stencil
.Enabled
);
732 ctx
->TriangleCaps
&= ~DD_STENCIL
;
733 if (ctx
->Stencil
.Enabled
)
734 ctx
->TriangleCaps
|= DD_STENCIL
;
737 case GL_TRANSFORM_BIT
:
738 MEMCPY( &ctx
->Transform
, attr
->data
,
739 sizeof(struct gl_transform_attrib
) );
740 if (ctx
->Driver
.Enable
) {
741 (*ctx
->Driver
.Enable
)( ctx
, GL_NORMALIZE
, ctx
->Transform
.Normalize
);
742 (*ctx
->Driver
.Enable
)( ctx
, GL_RESCALE_NORMAL_EXT
, ctx
->Transform
.RescaleNormals
);
744 ctx
->Enabled
&= ~(ENABLE_NORMALIZE
|ENABLE_RESCALE
);
745 if (ctx
->Transform
.Normalize
) ctx
->Enabled
|= ENABLE_NORMALIZE
;
746 if (ctx
->Transform
.RescaleNormals
) ctx
->Enabled
|= ENABLE_RESCALE
;
749 /* Take care of texture object reference counters */
752 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
753 ctx
->Texture
.Unit
[u
].CurrentD
[1]->RefCount
--;
754 ctx
->Texture
.Unit
[u
].CurrentD
[2]->RefCount
--;
755 ctx
->Texture
.Unit
[u
].CurrentD
[3]->RefCount
--;
757 MEMCPY( &ctx
->Texture
, attr
->data
,
758 sizeof(struct gl_texture_attrib
) );
759 /* restore state of the currently bound texture objects */
760 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
761 copy_texobj_state( ctx
->Texture
.Unit
[u
].CurrentD
[1],
762 &(ctx
->Texture
.Unit
[u
].Saved1D
) );
763 copy_texobj_state( ctx
->Texture
.Unit
[u
].CurrentD
[2],
764 &(ctx
->Texture
.Unit
[u
].Saved2D
) );
765 copy_texobj_state( ctx
->Texture
.Unit
[u
].CurrentD
[3],
766 &(ctx
->Texture
.Unit
[u
].Saved3D
) );
767 gl_put_texobj_on_dirty_list( ctx
, ctx
->Texture
.Unit
[u
].CurrentD
[1] );
768 gl_put_texobj_on_dirty_list( ctx
, ctx
->Texture
.Unit
[u
].CurrentD
[2] );
769 gl_put_texobj_on_dirty_list( ctx
, ctx
->Texture
.Unit
[u
].CurrentD
[3] );
774 case GL_VIEWPORT_BIT
:
776 struct gl_viewport_attrib
*v
=
777 (struct gl_viewport_attrib
*)attr
->data
;
779 _mesa_Viewport( v
->X
, v
->Y
, v
->Width
, v
->Height
);
780 _mesa_DepthRange( v
->Near
, v
->Far
);
784 gl_problem( ctx
, "Bad attrib flag in PopAttrib");
794 ctx
->NewState
= NEW_ALL
;
798 #define GL_CLIENT_PACK_BIT (1<<20)
799 #define GL_CLIENT_UNPACK_BIT (1<<21)
803 _mesa_PushClientAttrib(GLbitfield mask
)
805 struct gl_attrib_node
*newnode
;
806 struct gl_attrib_node
*head
;
808 GET_CURRENT_CONTEXT(ctx
);
809 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
, "glPushClientAttrib");
811 if (ctx
->ClientAttribStackDepth
>=MAX_CLIENT_ATTRIB_STACK_DEPTH
) {
812 gl_error( ctx
, GL_STACK_OVERFLOW
, "glPushClientAttrib" );
816 /* Build linked list of attribute nodes which save all attribute */
817 /* groups specified by the mask. */
820 if (mask
& GL_CLIENT_PIXEL_STORE_BIT
) {
821 struct gl_pixelstore_attrib
*attr
;
822 /* packing attribs */
823 attr
= MALLOC_STRUCT( gl_pixelstore_attrib
);
824 MEMCPY( attr
, &ctx
->Pack
, sizeof(struct gl_pixelstore_attrib
) );
825 newnode
= new_attrib_node( GL_CLIENT_PACK_BIT
);
826 newnode
->data
= attr
;
827 newnode
->next
= head
;
829 /* unpacking attribs */
830 attr
= MALLOC_STRUCT( gl_pixelstore_attrib
);
831 MEMCPY( attr
, &ctx
->Unpack
, sizeof(struct gl_pixelstore_attrib
) );
832 newnode
= new_attrib_node( GL_CLIENT_UNPACK_BIT
);
833 newnode
->data
= attr
;
834 newnode
->next
= head
;
837 if (mask
& GL_CLIENT_VERTEX_ARRAY_BIT
) {
838 struct gl_array_attrib
*attr
;
839 attr
= MALLOC_STRUCT( gl_array_attrib
);
840 MEMCPY( attr
, &ctx
->Array
, sizeof(struct gl_array_attrib
) );
841 newnode
= new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT
);
842 newnode
->data
= attr
;
843 newnode
->next
= head
;
847 ctx
->ClientAttribStack
[ctx
->ClientAttribStackDepth
] = head
;
848 ctx
->ClientAttribStackDepth
++;
855 _mesa_PopClientAttrib(void)
857 struct gl_attrib_node
*attr
, *next
;
859 GET_CURRENT_CONTEXT(ctx
);
860 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
, "glPopClientAttrib");
862 if (ctx
->ClientAttribStackDepth
==0) {
863 gl_error( ctx
, GL_STACK_UNDERFLOW
, "glPopClientAttrib" );
867 ctx
->ClientAttribStackDepth
--;
868 attr
= ctx
->ClientAttribStack
[ctx
->ClientAttribStackDepth
];
871 switch (attr
->kind
) {
872 case GL_CLIENT_PACK_BIT
:
873 MEMCPY( &ctx
->Pack
, attr
->data
,
874 sizeof(struct gl_pixelstore_attrib
) );
876 case GL_CLIENT_UNPACK_BIT
:
877 MEMCPY( &ctx
->Unpack
, attr
->data
,
878 sizeof(struct gl_pixelstore_attrib
) );
880 case GL_CLIENT_VERTEX_ARRAY_BIT
:
881 MEMCPY( &ctx
->Array
, attr
->data
,
882 sizeof(struct gl_array_attrib
) );
885 gl_problem( ctx
, "Bad attrib flag in PopClientAttrib");
895 ctx
->NewState
= NEW_ALL
;