1 /* $Id: attrib.c,v 1.17 2000/02/27 20:38:15 keithw 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
->IndexLogicOp
= ctx
->Color
.IndexLogicOpEnabled
;
181 attr
->ColorLogicOp
= ctx
->Color
.ColorLogicOpEnabled
;
182 attr
->Map1Color4
= ctx
->Eval
.Map1Color4
;
183 attr
->Map1Index
= ctx
->Eval
.Map1Index
;
184 attr
->Map1Normal
= ctx
->Eval
.Map1Normal
;
185 attr
->Map1TextureCoord1
= ctx
->Eval
.Map1TextureCoord1
;
186 attr
->Map1TextureCoord2
= ctx
->Eval
.Map1TextureCoord2
;
187 attr
->Map1TextureCoord3
= ctx
->Eval
.Map1TextureCoord3
;
188 attr
->Map1TextureCoord4
= ctx
->Eval
.Map1TextureCoord4
;
189 attr
->Map1Vertex3
= ctx
->Eval
.Map1Vertex3
;
190 attr
->Map1Vertex4
= ctx
->Eval
.Map1Vertex4
;
191 attr
->Map2Color4
= ctx
->Eval
.Map2Color4
;
192 attr
->Map2Index
= ctx
->Eval
.Map2Index
;
193 attr
->Map2Normal
= ctx
->Eval
.Map2Normal
;
194 attr
->Map2TextureCoord1
= ctx
->Eval
.Map2TextureCoord1
;
195 attr
->Map2TextureCoord2
= ctx
->Eval
.Map2TextureCoord2
;
196 attr
->Map2TextureCoord3
= ctx
->Eval
.Map2TextureCoord3
;
197 attr
->Map2TextureCoord4
= ctx
->Eval
.Map2TextureCoord4
;
198 attr
->Map2Vertex3
= ctx
->Eval
.Map2Vertex3
;
199 attr
->Map2Vertex4
= ctx
->Eval
.Map2Vertex4
;
200 attr
->Normalize
= ctx
->Transform
.Normalize
;
201 attr
->PointSmooth
= ctx
->Point
.SmoothFlag
;
202 attr
->PolygonOffsetPoint
= ctx
->Polygon
.OffsetPoint
;
203 attr
->PolygonOffsetLine
= ctx
->Polygon
.OffsetLine
;
204 attr
->PolygonOffsetFill
= ctx
->Polygon
.OffsetFill
;
205 attr
->PolygonSmooth
= ctx
->Polygon
.SmoothFlag
;
206 attr
->PolygonStipple
= ctx
->Polygon
.StippleFlag
;
207 attr
->RescaleNormals
= ctx
->Transform
.RescaleNormals
;
208 attr
->Scissor
= ctx
->Scissor
.Enabled
;
209 attr
->Stencil
= ctx
->Stencil
.Enabled
;
210 attr
->Texture
= ctx
->Texture
.Enabled
;
211 for (i
=0; i
<MAX_TEXTURE_UNITS
; i
++) {
212 attr
->TexGen
[i
] = ctx
->Texture
.Unit
[i
].TexGenEnabled
;
214 newnode
= new_attrib_node( GL_ENABLE_BIT
);
215 newnode
->data
= attr
;
216 newnode
->next
= head
;
220 if (mask
& GL_EVAL_BIT
) {
221 struct gl_eval_attrib
*attr
;
222 attr
= MALLOC_STRUCT( gl_eval_attrib
);
223 MEMCPY( attr
, &ctx
->Eval
, sizeof(struct gl_eval_attrib
) );
224 newnode
= new_attrib_node( GL_EVAL_BIT
);
225 newnode
->data
= attr
;
226 newnode
->next
= head
;
230 if (mask
& GL_FOG_BIT
) {
231 struct gl_fog_attrib
*attr
;
232 attr
= MALLOC_STRUCT( gl_fog_attrib
);
233 MEMCPY( attr
, &ctx
->Fog
, sizeof(struct gl_fog_attrib
) );
234 newnode
= new_attrib_node( GL_FOG_BIT
);
235 newnode
->data
= attr
;
236 newnode
->next
= head
;
240 if (mask
& GL_HINT_BIT
) {
241 struct gl_hint_attrib
*attr
;
242 attr
= MALLOC_STRUCT( gl_hint_attrib
);
243 MEMCPY( attr
, &ctx
->Hint
, sizeof(struct gl_hint_attrib
) );
244 newnode
= new_attrib_node( GL_HINT_BIT
);
245 newnode
->data
= attr
;
246 newnode
->next
= head
;
250 if (mask
& GL_LIGHTING_BIT
) {
251 struct gl_light_attrib
*attr
;
252 attr
= MALLOC_STRUCT( gl_light_attrib
);
253 MEMCPY( attr
, &ctx
->Light
, sizeof(struct gl_light_attrib
) );
254 newnode
= new_attrib_node( GL_LIGHTING_BIT
);
255 newnode
->data
= attr
;
256 newnode
->next
= head
;
260 if (mask
& GL_LINE_BIT
) {
261 struct gl_line_attrib
*attr
;
262 attr
= MALLOC_STRUCT( gl_line_attrib
);
263 MEMCPY( attr
, &ctx
->Line
, sizeof(struct gl_line_attrib
) );
264 newnode
= new_attrib_node( GL_LINE_BIT
);
265 newnode
->data
= attr
;
266 newnode
->next
= head
;
270 if (mask
& GL_LIST_BIT
) {
271 struct gl_list_attrib
*attr
;
272 attr
= MALLOC_STRUCT( gl_list_attrib
);
273 MEMCPY( attr
, &ctx
->List
, sizeof(struct gl_list_attrib
) );
274 newnode
= new_attrib_node( GL_LIST_BIT
);
275 newnode
->data
= attr
;
276 newnode
->next
= head
;
280 if (mask
& GL_PIXEL_MODE_BIT
) {
281 struct gl_pixel_attrib
*attr
;
282 attr
= MALLOC_STRUCT( gl_pixel_attrib
);
283 MEMCPY( attr
, &ctx
->Pixel
, sizeof(struct gl_pixel_attrib
) );
284 newnode
= new_attrib_node( GL_PIXEL_MODE_BIT
);
285 newnode
->data
= attr
;
286 newnode
->next
= head
;
290 if (mask
& GL_POINT_BIT
) {
291 struct gl_point_attrib
*attr
;
292 attr
= MALLOC_STRUCT( gl_point_attrib
);
293 MEMCPY( attr
, &ctx
->Point
, sizeof(struct gl_point_attrib
) );
294 newnode
= new_attrib_node( GL_POINT_BIT
);
295 newnode
->data
= attr
;
296 newnode
->next
= head
;
300 if (mask
& GL_POLYGON_BIT
) {
301 struct gl_polygon_attrib
*attr
;
302 attr
= MALLOC_STRUCT( gl_polygon_attrib
);
303 MEMCPY( attr
, &ctx
->Polygon
, sizeof(struct gl_polygon_attrib
) );
304 newnode
= new_attrib_node( GL_POLYGON_BIT
);
305 newnode
->data
= attr
;
306 newnode
->next
= head
;
310 if (mask
& GL_POLYGON_STIPPLE_BIT
) {
312 stipple
= (GLuint
*) MALLOC( 32*sizeof(GLuint
) );
313 MEMCPY( stipple
, ctx
->PolygonStipple
, 32*sizeof(GLuint
) );
314 newnode
= new_attrib_node( GL_POLYGON_STIPPLE_BIT
);
315 newnode
->data
= stipple
;
316 newnode
->next
= head
;
320 if (mask
& GL_SCISSOR_BIT
) {
321 struct gl_scissor_attrib
*attr
;
322 attr
= MALLOC_STRUCT( gl_scissor_attrib
);
323 MEMCPY( attr
, &ctx
->Scissor
, sizeof(struct gl_scissor_attrib
) );
324 newnode
= new_attrib_node( GL_SCISSOR_BIT
);
325 newnode
->data
= attr
;
326 newnode
->next
= head
;
330 if (mask
& GL_STENCIL_BUFFER_BIT
) {
331 struct gl_stencil_attrib
*attr
;
332 attr
= MALLOC_STRUCT( gl_stencil_attrib
);
333 MEMCPY( attr
, &ctx
->Stencil
, sizeof(struct gl_stencil_attrib
) );
334 newnode
= new_attrib_node( GL_STENCIL_BUFFER_BIT
);
335 newnode
->data
= attr
;
336 newnode
->next
= head
;
340 if (mask
& GL_TEXTURE_BIT
) {
341 struct gl_texture_attrib
*attr
;
343 /* Take care of texture object reference counters */
344 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
345 ctx
->Texture
.Unit
[u
].CurrentD
[1]->RefCount
++;
346 ctx
->Texture
.Unit
[u
].CurrentD
[2]->RefCount
++;
347 ctx
->Texture
.Unit
[u
].CurrentD
[3]->RefCount
++;
349 attr
= MALLOC_STRUCT( gl_texture_attrib
);
350 MEMCPY( attr
, &ctx
->Texture
, sizeof(struct gl_texture_attrib
) );
351 /* copy state of the currently bound texture objects */
352 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
353 copy_texobj_state(&attr
->Unit
[u
].Saved1D
, attr
->Unit
[u
].CurrentD
[1]);
354 copy_texobj_state(&attr
->Unit
[u
].Saved2D
, attr
->Unit
[u
].CurrentD
[2]);
355 copy_texobj_state(&attr
->Unit
[u
].Saved3D
, attr
->Unit
[u
].CurrentD
[3]);
357 newnode
= new_attrib_node( GL_TEXTURE_BIT
);
358 newnode
->data
= attr
;
359 newnode
->next
= head
;
363 if (mask
& GL_TRANSFORM_BIT
) {
364 struct gl_transform_attrib
*attr
;
365 attr
= MALLOC_STRUCT( gl_transform_attrib
);
366 MEMCPY( attr
, &ctx
->Transform
, sizeof(struct gl_transform_attrib
) );
367 newnode
= new_attrib_node( GL_TRANSFORM_BIT
);
368 newnode
->data
= attr
;
369 newnode
->next
= head
;
373 if (mask
& GL_VIEWPORT_BIT
) {
374 struct gl_viewport_attrib
*attr
;
375 attr
= MALLOC_STRUCT( gl_viewport_attrib
);
376 MEMCPY( attr
, &ctx
->Viewport
, sizeof(struct gl_viewport_attrib
) );
377 newnode
= new_attrib_node( GL_VIEWPORT_BIT
);
378 newnode
->data
= attr
;
379 newnode
->next
= head
;
383 ctx
->AttribStack
[ctx
->AttribStackDepth
] = head
;
384 ctx
->AttribStackDepth
++;
390 * This function is kind of long just because we have to call a lot
391 * of device driver functions to update device driver state.
394 _mesa_PopAttrib(void)
396 struct gl_attrib_node
*attr
, *next
;
397 GET_CURRENT_CONTEXT(ctx
);
399 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
, "glPopAttrib");
402 if (ctx
->AttribStackDepth
==0) {
403 gl_error( ctx
, GL_STACK_UNDERFLOW
, "glPopAttrib" );
407 ctx
->AttribStackDepth
--;
408 attr
= ctx
->AttribStack
[ctx
->AttribStackDepth
];
412 if (MESA_VERBOSE
&VERBOSE_API
)
413 fprintf(stderr
, "glPopAttrib %s\n", gl_lookup_enum_by_nr(attr
->kind
));
415 switch (attr
->kind
) {
416 case GL_ACCUM_BUFFER_BIT
:
417 MEMCPY( &ctx
->Accum
, attr
->data
, sizeof(struct gl_accum_attrib
) );
419 case GL_COLOR_BUFFER_BIT
:
421 GLenum oldDrawBuffer
= ctx
->Color
.DrawBuffer
;
422 GLenum oldAlphaFunc
= ctx
->Color
.AlphaFunc
;
423 GLubyte oldAlphaRef
= ctx
->Color
.AlphaRef
;
424 GLenum oldBlendSrc
= ctx
->Color
.BlendSrcRGB
;
425 GLenum oldBlendDst
= ctx
->Color
.BlendDstRGB
;
426 GLenum oldLogicOp
= ctx
->Color
.LogicOp
;
427 MEMCPY( &ctx
->Color
, attr
->data
,
428 sizeof(struct gl_colorbuffer_attrib
) );
429 if (ctx
->Color
.DrawBuffer
!= oldDrawBuffer
) {
430 _mesa_DrawBuffer( ctx
->Color
.DrawBuffer
);
432 if ((ctx
->Color
.AlphaFunc
!= oldAlphaFunc
||
433 ctx
->Color
.AlphaRef
!= oldAlphaRef
) &&
434 ctx
->Driver
.AlphaFunc
)
435 (*ctx
->Driver
.AlphaFunc
)( ctx
, ctx
->Color
.AlphaFunc
,
436 ctx
->Color
.AlphaRef
/ 255.0F
);
437 if ((ctx
->Color
.BlendSrcRGB
!= oldBlendSrc
||
438 ctx
->Color
.BlendSrcRGB
!= oldBlendDst
) &&
439 ctx
->Driver
.BlendFunc
)
440 (*ctx
->Driver
.BlendFunc
)( ctx
, ctx
->Color
.BlendSrcRGB
,
441 ctx
->Color
.BlendDstRGB
);
442 if (ctx
->Color
.LogicOp
!= oldLogicOp
&&
443 ctx
->Driver
.LogicOpcode
)
444 ctx
->Driver
.LogicOpcode( ctx
, ctx
->Color
.LogicOp
);
448 MEMCPY( &ctx
->Current
, attr
->data
,
449 sizeof(struct gl_current_attrib
) );
451 case GL_DEPTH_BUFFER_BIT
:
453 GLenum oldDepthFunc
= ctx
->Depth
.Func
;
454 GLboolean oldDepthMask
= ctx
->Depth
.Mask
;
455 GLfloat oldDepthClear
= ctx
->Depth
.Clear
;
456 MEMCPY( &ctx
->Depth
, attr
->data
,
457 sizeof(struct gl_depthbuffer_attrib
) );
458 if (ctx
->Depth
.Func
!= oldDepthFunc
&& ctx
->Driver
.DepthFunc
)
459 (*ctx
->Driver
.DepthFunc
)( ctx
, ctx
->Depth
.Func
);
460 if (ctx
->Depth
.Mask
!= oldDepthMask
&& ctx
->Driver
.DepthMask
)
461 (*ctx
->Driver
.DepthMask
)( ctx
, ctx
->Depth
.Mask
);
462 if (ctx
->Depth
.Clear
!= oldDepthClear
&& ctx
->Driver
.ClearDepth
)
463 (*ctx
->Driver
.ClearDepth
)( ctx
, ctx
->Depth
.Clear
);
468 const struct gl_enable_attrib
*enable
;
469 enable
= (const struct gl_enable_attrib
*) attr
->data
;
471 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM) \
472 if ((VALUE) != (NEWVALUE)) { \
473 _mesa_set_enable( ctx, ENUM, (NEWVALUE) ); \
476 TEST_AND_UPDATE(ctx
->Color
.AlphaEnabled
, enable
->AlphaTest
, GL_ALPHA_TEST
);
477 TEST_AND_UPDATE(ctx
->Transform
.Normalize
, enable
->AutoNormal
, GL_NORMALIZE
);
478 TEST_AND_UPDATE(ctx
->Color
.BlendEnabled
, enable
->Blend
, GL_BLEND
);
481 for (i
=0;i
<MAX_CLIP_PLANES
;i
++) {
482 if (ctx
->Transform
.ClipEnabled
[i
] != enable
->ClipPlane
[i
])
483 _mesa_set_enable( ctx
, (GLenum
) (GL_CLIP_PLANE0
+ i
), enable
->ClipPlane
[i
] );
486 TEST_AND_UPDATE(ctx
->Light
.ColorMaterialEnabled
, enable
->ColorMaterial
, GL_COLOR_MATERIAL
);
487 TEST_AND_UPDATE(ctx
->Polygon
.CullFlag
, enable
->CullFace
, GL_CULL_FACE
);
488 TEST_AND_UPDATE(ctx
->Depth
.Test
, enable
->DepthTest
, GL_DEPTH_TEST
);
489 TEST_AND_UPDATE(ctx
->Color
.DitherFlag
, enable
->Dither
, GL_DITHER
);
490 TEST_AND_UPDATE(ctx
->Fog
.Enabled
, enable
->Fog
, GL_FOG
);
491 TEST_AND_UPDATE(ctx
->Light
.Enabled
, enable
->Lighting
, GL_LIGHTING
);
492 TEST_AND_UPDATE(ctx
->Line
.SmoothFlag
, enable
->LineSmooth
, GL_LINE_SMOOTH
);
493 TEST_AND_UPDATE(ctx
->Line
.StippleFlag
, enable
->LineStipple
, GL_LINE_STIPPLE
);
494 TEST_AND_UPDATE(ctx
->Color
.IndexLogicOpEnabled
, enable
->IndexLogicOp
, GL_INDEX_LOGIC_OP
);
495 TEST_AND_UPDATE(ctx
->Color
.ColorLogicOpEnabled
, enable
->ColorLogicOp
, GL_COLOR_LOGIC_OP
);
496 TEST_AND_UPDATE(ctx
->Eval
.Map1Color4
, enable
->Map1Color4
, GL_MAP1_COLOR_4
);
497 TEST_AND_UPDATE(ctx
->Eval
.Map1Index
, enable
->Map1Index
, GL_MAP1_INDEX
);
498 TEST_AND_UPDATE(ctx
->Eval
.Map1Normal
, enable
->Map1Normal
, GL_MAP1_NORMAL
);
499 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord1
, enable
->Map1TextureCoord1
, GL_MAP1_TEXTURE_COORD_1
);
500 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord2
, enable
->Map1TextureCoord2
, GL_MAP1_TEXTURE_COORD_2
);
501 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord3
, enable
->Map1TextureCoord3
, GL_MAP1_TEXTURE_COORD_3
);
502 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord4
, enable
->Map1TextureCoord4
, GL_MAP1_TEXTURE_COORD_4
);
503 TEST_AND_UPDATE(ctx
->Eval
.Map1Vertex3
, enable
->Map1Vertex3
, GL_MAP1_VERTEX_3
);
504 TEST_AND_UPDATE(ctx
->Eval
.Map1Vertex4
, enable
->Map1Vertex4
, GL_MAP1_VERTEX_4
);
505 TEST_AND_UPDATE(ctx
->Eval
.Map2Color4
, enable
->Map2Color4
, GL_MAP2_COLOR_4
);
506 TEST_AND_UPDATE(ctx
->Eval
.Map2Index
, enable
->Map2Index
, GL_MAP2_INDEX
);
507 TEST_AND_UPDATE(ctx
->Eval
.Map2Normal
, enable
->Map2Normal
, GL_MAP2_NORMAL
);
508 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord1
, enable
->Map2TextureCoord1
, GL_MAP2_TEXTURE_COORD_1
);
509 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord2
, enable
->Map2TextureCoord2
, GL_MAP2_TEXTURE_COORD_2
);
510 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord3
, enable
->Map2TextureCoord3
, GL_MAP2_TEXTURE_COORD_3
);
511 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord4
, enable
->Map2TextureCoord4
, GL_MAP2_TEXTURE_COORD_4
);
512 TEST_AND_UPDATE(ctx
->Eval
.Map2Vertex3
, enable
->Map2Vertex3
, GL_MAP2_VERTEX_3
);
513 TEST_AND_UPDATE(ctx
->Eval
.Map2Vertex4
, enable
->Map2Vertex4
, GL_MAP2_VERTEX_4
);
514 TEST_AND_UPDATE(ctx
->Transform
.Normalize
, enable
->Normalize
, GL_NORMALIZE
);
515 TEST_AND_UPDATE(ctx
->Transform
.RescaleNormals
, enable
->RescaleNormals
, GL_RESCALE_NORMAL_EXT
);
516 TEST_AND_UPDATE(ctx
->Point
.SmoothFlag
, enable
->PointSmooth
, GL_POINT_SMOOTH
);
517 TEST_AND_UPDATE(ctx
->Polygon
.OffsetPoint
, enable
->PolygonOffsetPoint
, GL_POLYGON_OFFSET_POINT
);
518 TEST_AND_UPDATE(ctx
->Polygon
.OffsetLine
, enable
->PolygonOffsetLine
, GL_POLYGON_OFFSET_LINE
);
519 TEST_AND_UPDATE(ctx
->Polygon
.OffsetFill
, enable
->PolygonOffsetFill
, GL_POLYGON_OFFSET_FILL
);
520 TEST_AND_UPDATE(ctx
->Polygon
.SmoothFlag
, enable
->PolygonSmooth
, GL_POLYGON_SMOOTH
);
521 TEST_AND_UPDATE(ctx
->Polygon
.StippleFlag
, enable
->PolygonStipple
, GL_POLYGON_STIPPLE
);
522 TEST_AND_UPDATE(ctx
->Scissor
.Enabled
, enable
->Scissor
, GL_SCISSOR_TEST
);
523 TEST_AND_UPDATE(ctx
->Stencil
.Enabled
, enable
->Stencil
, GL_STENCIL_TEST
);
524 if (ctx
->Texture
.Enabled
!= enable
->Texture
) {
525 ctx
->Texture
.Enabled
= enable
->Texture
;
526 if (ctx
->Driver
.Enable
) {
527 if (ctx
->Driver
.ActiveTexture
)
528 (*ctx
->Driver
.ActiveTexture
)( ctx
, 0 );
529 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_1D
, (GLboolean
) (enable
->Texture
& TEXTURE0_1D
) );
530 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_2D
, (GLboolean
) (enable
->Texture
& TEXTURE0_2D
) );
531 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_3D
, (GLboolean
) (enable
->Texture
& TEXTURE0_3D
) );
532 if (ctx
->Driver
.ActiveTexture
)
533 (*ctx
->Driver
.ActiveTexture
)( ctx
, 1 );
534 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_1D
, (GLboolean
) (enable
->Texture
& TEXTURE1_1D
) );
535 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_2D
, (GLboolean
) (enable
->Texture
& TEXTURE1_2D
) );
536 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_3D
, (GLboolean
) (enable
->Texture
& TEXTURE1_3D
) );
537 if (ctx
->Driver
.ActiveTexture
)
538 (*ctx
->Driver
.ActiveTexture
)( ctx
, ctx
->Texture
.CurrentUnit
);
541 #undef TEST_AND_UPDATE
544 for (i
=0; i
<MAX_TEXTURE_UNITS
; i
++) {
545 if (ctx
->Texture
.Unit
[i
].TexGenEnabled
!= enable
->TexGen
[i
]) {
546 ctx
->Texture
.Unit
[i
].TexGenEnabled
= enable
->TexGen
[i
];
548 /* ctx->Enabled recalculated in state change
551 if (ctx
->Driver
.Enable
) {
552 if (ctx
->Driver
.ActiveTexture
)
553 (*ctx
->Driver
.ActiveTexture
)( ctx
, i
);
554 if (enable
->TexGen
[i
] & S_BIT
)
555 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_S
, GL_TRUE
);
557 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_S
, GL_FALSE
);
558 if (enable
->TexGen
[i
] & T_BIT
)
559 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_T
, GL_TRUE
);
561 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_T
, GL_FALSE
);
562 if (enable
->TexGen
[i
] & R_BIT
)
563 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_R
, GL_TRUE
);
565 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_R
, GL_FALSE
);
566 if (enable
->TexGen
[i
] & Q_BIT
)
567 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_Q
, GL_TRUE
);
569 (*ctx
->Driver
.Enable
)( ctx
, GL_TEXTURE_GEN_Q
, GL_FALSE
);
573 if (ctx
->Driver
.ActiveTexture
)
574 (*ctx
->Driver
.ActiveTexture
)( ctx
, ctx
->Texture
.CurrentUnit
);
579 MEMCPY( &ctx
->Eval
, attr
->data
, sizeof(struct gl_eval_attrib
) );
583 GLboolean anyChange
= (GLboolean
) (memcmp( &ctx
->Fog
, attr
->data
, sizeof(struct gl_fog_attrib
) ) != 0);
584 MEMCPY( &ctx
->Fog
, attr
->data
, sizeof(struct gl_fog_attrib
) );
585 if (anyChange
&& ctx
->Driver
.Fogfv
) {
586 const GLfloat mode
= (GLfloat
) ctx
->Fog
.Mode
;
587 const GLfloat density
= ctx
->Fog
.Density
;
588 const GLfloat start
= ctx
->Fog
.Start
;
589 const GLfloat end
= ctx
->Fog
.End
;
590 const GLfloat index
= ctx
->Fog
.Index
;
591 (*ctx
->Driver
.Fogfv
)( ctx
, GL_FOG_MODE
, &mode
);
592 (*ctx
->Driver
.Fogfv
)( ctx
, GL_FOG_DENSITY
, &density
);
593 (*ctx
->Driver
.Fogfv
)( ctx
, GL_FOG_START
, &start
);
594 (*ctx
->Driver
.Fogfv
)( ctx
, GL_FOG_END
, &end
);
595 (*ctx
->Driver
.Fogfv
)( ctx
, GL_FOG_INDEX
, &index
);
596 (*ctx
->Driver
.Fogfv
)( ctx
, GL_FOG_COLOR
, ctx
->Fog
.Color
);
598 ctx
->Enabled
&= ~ENABLE_FOG
;
599 if (ctx
->Fog
.Enabled
) ctx
->Enabled
|= ENABLE_FOG
;
603 MEMCPY( &ctx
->Hint
, attr
->data
, sizeof(struct gl_hint_attrib
) );
604 if (ctx
->Driver
.Hint
) {
605 (*ctx
->Driver
.Hint
)( ctx
, GL_PERSPECTIVE_CORRECTION_HINT
,
606 ctx
->Hint
.PerspectiveCorrection
);
607 (*ctx
->Driver
.Hint
)( ctx
, GL_POINT_SMOOTH_HINT
,
608 ctx
->Hint
.PointSmooth
);
609 (*ctx
->Driver
.Hint
)( ctx
, GL_LINE_SMOOTH_HINT
,
610 ctx
->Hint
.LineSmooth
);
611 (*ctx
->Driver
.Hint
)( ctx
, GL_POLYGON_SMOOTH_HINT
,
612 ctx
->Hint
.PolygonSmooth
);
613 (*ctx
->Driver
.Hint
)( ctx
, GL_FOG_HINT
, ctx
->Hint
.Fog
);
616 case GL_LIGHTING_BIT
:
617 MEMCPY( &ctx
->Light
, attr
->data
, sizeof(struct gl_light_attrib
) );
618 if (ctx
->Driver
.Enable
) {
620 for (i
= 0; i
< MAX_LIGHTS
; i
++) {
621 GLenum light
= (GLenum
) (GL_LIGHT0
+ i
);
622 (*ctx
->Driver
.Enable
)( ctx
, light
, ctx
->Light
.Light
[i
].Enabled
);
624 (*ctx
->Driver
.Enable
)( ctx
, GL_LIGHTING
, ctx
->Light
.Enabled
);
626 if (ctx
->Light
.ShadeModel
== GL_FLAT
)
627 ctx
->TriangleCaps
|= DD_FLATSHADE
;
629 ctx
->TriangleCaps
&= ~DD_FLATSHADE
;
630 if (ctx
->Driver
.ShadeModel
)
631 (*ctx
->Driver
.ShadeModel
)(ctx
, ctx
->Light
.ShadeModel
);
632 ctx
->Enabled
&= ~ENABLE_LIGHT
;
633 if (ctx
->Light
.Enabled
&& !is_empty_list(&ctx
->Light
.EnabledList
))
634 ctx
->Enabled
|= ENABLE_LIGHT
;
637 MEMCPY( &ctx
->Line
, attr
->data
, sizeof(struct gl_line_attrib
) );
638 if (ctx
->Driver
.Enable
) {
639 (*ctx
->Driver
.Enable
)( ctx
, GL_LINE_SMOOTH
, ctx
->Line
.SmoothFlag
);
640 (*ctx
->Driver
.Enable
)( ctx
, GL_LINE_STIPPLE
, ctx
->Line
.StippleFlag
);
644 MEMCPY( &ctx
->List
, attr
->data
, sizeof(struct gl_list_attrib
) );
646 case GL_PIXEL_MODE_BIT
:
647 MEMCPY( &ctx
->Pixel
, attr
->data
, sizeof(struct gl_pixel_attrib
) );
650 MEMCPY( &ctx
->Point
, attr
->data
, sizeof(struct gl_point_attrib
) );
651 if (ctx
->Driver
.Enable
)
652 (*ctx
->Driver
.Enable
)( ctx
, GL_POINT_SMOOTH
, ctx
->Point
.SmoothFlag
);
656 GLenum oldFrontMode
= ctx
->Polygon
.FrontMode
;
657 GLenum oldBackMode
= ctx
->Polygon
.BackMode
;
658 MEMCPY( &ctx
->Polygon
, attr
->data
,
659 sizeof(struct gl_polygon_attrib
) );
660 if ((ctx
->Polygon
.FrontMode
!= oldFrontMode
||
661 ctx
->Polygon
.BackMode
!= oldBackMode
) &&
662 ctx
->Driver
.PolygonMode
) {
663 (*ctx
->Driver
.PolygonMode
)( ctx
, GL_FRONT
, ctx
->Polygon
.FrontMode
);
664 (*ctx
->Driver
.PolygonMode
)( ctx
, GL_BACK
, ctx
->Polygon
.BackMode
);
666 if (ctx
->Driver
.CullFace
)
667 ctx
->Driver
.CullFace( ctx
, ctx
->Polygon
.CullFaceMode
);
669 if (ctx
->Driver
.FrontFace
)
670 ctx
->Driver
.FrontFace( ctx
, ctx
->Polygon
.FrontFace
);
672 if (ctx
->Driver
.Enable
)
673 (*ctx
->Driver
.Enable
)( ctx
, GL_POLYGON_SMOOTH
, ctx
->Polygon
.SmoothFlag
);
676 case GL_POLYGON_STIPPLE_BIT
:
677 MEMCPY( ctx
->PolygonStipple
, attr
->data
, 32*sizeof(GLuint
) );
678 if (ctx
->Driver
.PolygonStipple
)
679 ctx
->Driver
.PolygonStipple( ctx
, attr
->data
);
682 MEMCPY( &ctx
->Scissor
, attr
->data
,
683 sizeof(struct gl_scissor_attrib
) );
684 if (ctx
->Driver
.Enable
)
685 (*ctx
->Driver
.Enable
)( ctx
, GL_SCISSOR_TEST
, ctx
->Scissor
.Enabled
);
686 if (ctx
->Driver
.Scissor
)
687 ctx
->Driver
.Scissor( ctx
, ctx
->Scissor
.X
, ctx
->Scissor
.Y
,
688 ctx
->Scissor
.Width
, ctx
->Scissor
.Height
);
690 case GL_STENCIL_BUFFER_BIT
:
691 MEMCPY( &ctx
->Stencil
, attr
->data
,
692 sizeof(struct gl_stencil_attrib
) );
693 if (ctx
->Driver
.StencilFunc
)
694 (*ctx
->Driver
.StencilFunc
)( ctx
, ctx
->Stencil
.Function
,
695 ctx
->Stencil
.Ref
, ctx
->Stencil
.ValueMask
);
696 if (ctx
->Driver
.StencilMask
)
697 (*ctx
->Driver
.StencilMask
)( ctx
, ctx
->Stencil
.WriteMask
);
698 if (ctx
->Driver
.StencilOp
)
699 (*ctx
->Driver
.StencilOp
)( ctx
, ctx
->Stencil
.FailFunc
,
700 ctx
->Stencil
.ZFailFunc
, ctx
->Stencil
.ZPassFunc
);
701 if (ctx
->Driver
.ClearStencil
)
702 (*ctx
->Driver
.ClearStencil
)( ctx
, ctx
->Stencil
.Clear
);
703 if (ctx
->Driver
.Enable
)
704 (*ctx
->Driver
.Enable
)( ctx
, GL_STENCIL_TEST
, ctx
->Stencil
.Enabled
);
705 ctx
->TriangleCaps
&= ~DD_STENCIL
;
706 if (ctx
->Stencil
.Enabled
)
707 ctx
->TriangleCaps
|= DD_STENCIL
;
710 case GL_TRANSFORM_BIT
:
711 MEMCPY( &ctx
->Transform
, attr
->data
,
712 sizeof(struct gl_transform_attrib
) );
713 if (ctx
->Driver
.Enable
) {
714 (*ctx
->Driver
.Enable
)( ctx
, GL_NORMALIZE
, ctx
->Transform
.Normalize
);
715 (*ctx
->Driver
.Enable
)( ctx
, GL_RESCALE_NORMAL_EXT
, ctx
->Transform
.RescaleNormals
);
717 ctx
->Enabled
&= ~(ENABLE_NORMALIZE
|ENABLE_RESCALE
);
718 if (ctx
->Transform
.Normalize
) ctx
->Enabled
|= ENABLE_NORMALIZE
;
719 if (ctx
->Transform
.RescaleNormals
) ctx
->Enabled
|= ENABLE_RESCALE
;
722 /* Take care of texture object reference counters */
725 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
726 ctx
->Texture
.Unit
[u
].CurrentD
[1]->RefCount
--;
727 ctx
->Texture
.Unit
[u
].CurrentD
[2]->RefCount
--;
728 ctx
->Texture
.Unit
[u
].CurrentD
[3]->RefCount
--;
730 MEMCPY( &ctx
->Texture
, attr
->data
,
731 sizeof(struct gl_texture_attrib
) );
732 /* restore state of the currently bound texture objects */
733 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
734 copy_texobj_state( ctx
->Texture
.Unit
[u
].CurrentD
[1],
735 &(ctx
->Texture
.Unit
[u
].Saved1D
) );
736 copy_texobj_state( ctx
->Texture
.Unit
[u
].CurrentD
[2],
737 &(ctx
->Texture
.Unit
[u
].Saved2D
) );
738 copy_texobj_state( ctx
->Texture
.Unit
[u
].CurrentD
[3],
739 &(ctx
->Texture
.Unit
[u
].Saved3D
) );
740 gl_put_texobj_on_dirty_list( ctx
, ctx
->Texture
.Unit
[u
].CurrentD
[1] );
741 gl_put_texobj_on_dirty_list( ctx
, ctx
->Texture
.Unit
[u
].CurrentD
[2] );
742 gl_put_texobj_on_dirty_list( ctx
, ctx
->Texture
.Unit
[u
].CurrentD
[3] );
747 case GL_VIEWPORT_BIT
:
749 struct gl_viewport_attrib
*v
=
750 (struct gl_viewport_attrib
*)attr
->data
;
752 _mesa_Viewport( v
->X
, v
->Y
, v
->Width
, v
->Height
);
753 _mesa_DepthRange( v
->Near
, v
->Far
);
757 gl_problem( ctx
, "Bad attrib flag in PopAttrib");
767 ctx
->NewState
= NEW_ALL
;
771 #define GL_CLIENT_PACK_BIT (1<<20)
772 #define GL_CLIENT_UNPACK_BIT (1<<21)
776 _mesa_PushClientAttrib(GLbitfield mask
)
778 struct gl_attrib_node
*newnode
;
779 struct gl_attrib_node
*head
;
781 GET_CURRENT_CONTEXT(ctx
);
782 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
, "glPushClientAttrib");
784 if (ctx
->ClientAttribStackDepth
>=MAX_CLIENT_ATTRIB_STACK_DEPTH
) {
785 gl_error( ctx
, GL_STACK_OVERFLOW
, "glPushClientAttrib" );
789 /* Build linked list of attribute nodes which save all attribute */
790 /* groups specified by the mask. */
793 if (mask
& GL_CLIENT_PIXEL_STORE_BIT
) {
794 struct gl_pixelstore_attrib
*attr
;
795 /* packing attribs */
796 attr
= MALLOC_STRUCT( gl_pixelstore_attrib
);
797 MEMCPY( attr
, &ctx
->Pack
, sizeof(struct gl_pixelstore_attrib
) );
798 newnode
= new_attrib_node( GL_CLIENT_PACK_BIT
);
799 newnode
->data
= attr
;
800 newnode
->next
= head
;
802 /* unpacking attribs */
803 attr
= MALLOC_STRUCT( gl_pixelstore_attrib
);
804 MEMCPY( attr
, &ctx
->Unpack
, sizeof(struct gl_pixelstore_attrib
) );
805 newnode
= new_attrib_node( GL_CLIENT_UNPACK_BIT
);
806 newnode
->data
= attr
;
807 newnode
->next
= head
;
810 if (mask
& GL_CLIENT_VERTEX_ARRAY_BIT
) {
811 struct gl_array_attrib
*attr
;
812 attr
= MALLOC_STRUCT( gl_array_attrib
);
813 MEMCPY( attr
, &ctx
->Array
, sizeof(struct gl_array_attrib
) );
814 newnode
= new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT
);
815 newnode
->data
= attr
;
816 newnode
->next
= head
;
820 ctx
->ClientAttribStack
[ctx
->ClientAttribStackDepth
] = head
;
821 ctx
->ClientAttribStackDepth
++;
828 _mesa_PopClientAttrib(void)
830 struct gl_attrib_node
*attr
, *next
;
832 GET_CURRENT_CONTEXT(ctx
);
833 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
, "glPopClientAttrib");
835 if (ctx
->ClientAttribStackDepth
==0) {
836 gl_error( ctx
, GL_STACK_UNDERFLOW
, "glPopClientAttrib" );
840 ctx
->ClientAttribStackDepth
--;
841 attr
= ctx
->ClientAttribStack
[ctx
->ClientAttribStackDepth
];
844 switch (attr
->kind
) {
845 case GL_CLIENT_PACK_BIT
:
846 MEMCPY( &ctx
->Pack
, attr
->data
,
847 sizeof(struct gl_pixelstore_attrib
) );
849 case GL_CLIENT_UNPACK_BIT
:
850 MEMCPY( &ctx
->Unpack
, attr
->data
,
851 sizeof(struct gl_pixelstore_attrib
) );
853 case GL_CLIENT_VERTEX_ARRAY_BIT
:
854 MEMCPY( &ctx
->Array
, attr
->data
,
855 sizeof(struct gl_array_attrib
) );
858 gl_problem( ctx
, "Bad attrib flag in PopClientAttrib");
868 ctx
->NewState
= NEW_ALL
;