2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 #include "bufferobj.h"
45 #include "multisample.h"
58 #include "main/dispatch.h"
62 * glEnable()/glDisable() attribute group (GL_ENABLE_BIT).
64 struct gl_enable_attrib
69 GLbitfield ClipPlanes
;
70 GLboolean ColorMaterial
;
71 GLboolean ColorTable
[COLORTABLE_MAX
];
72 GLboolean Convolution1D
;
73 GLboolean Convolution2D
;
74 GLboolean Separable2D
;
81 GLboolean Light
[MAX_LIGHTS
];
84 GLboolean LineStipple
;
85 GLboolean IndexLogicOp
;
86 GLboolean ColorLogicOp
;
91 GLboolean Map1TextureCoord1
;
92 GLboolean Map1TextureCoord2
;
93 GLboolean Map1TextureCoord3
;
94 GLboolean Map1TextureCoord4
;
95 GLboolean Map1Vertex3
;
96 GLboolean Map1Vertex4
;
97 GLboolean Map1Attrib
[16]; /* GL_NV_vertex_program */
100 GLboolean Map2Normal
;
101 GLboolean Map2TextureCoord1
;
102 GLboolean Map2TextureCoord2
;
103 GLboolean Map2TextureCoord3
;
104 GLboolean Map2TextureCoord4
;
105 GLboolean Map2Vertex3
;
106 GLboolean Map2Vertex4
;
107 GLboolean Map2Attrib
[16]; /* GL_NV_vertex_program */
111 GLboolean PixelTexture
;
112 GLboolean PointSmooth
;
113 GLboolean PolygonOffsetPoint
;
114 GLboolean PolygonOffsetLine
;
115 GLboolean PolygonOffsetFill
;
116 GLboolean PolygonSmooth
;
117 GLboolean PolygonStipple
;
118 GLboolean RescaleNormals
;
121 GLboolean StencilTwoSide
; /* GL_EXT_stencil_two_side */
122 GLboolean MultisampleEnabled
; /* GL_ARB_multisample */
123 GLboolean SampleAlphaToCoverage
; /* GL_ARB_multisample */
124 GLboolean SampleAlphaToOne
; /* GL_ARB_multisample */
125 GLboolean SampleCoverage
; /* GL_ARB_multisample */
126 GLboolean SampleCoverageInvert
; /* GL_ARB_multisample */
127 GLboolean RasterPositionUnclipped
; /* GL_IBM_rasterpos_clip */
129 GLbitfield Texture
[MAX_TEXTURE_UNITS
];
130 GLbitfield TexGen
[MAX_TEXTURE_UNITS
];
132 /* SGI_texture_color_table */
133 GLboolean TextureColorTable
[MAX_TEXTURE_UNITS
];
135 /* GL_ARB_vertex_program / GL_NV_vertex_program */
136 GLboolean VertexProgram
;
137 GLboolean VertexProgramPointSize
;
138 GLboolean VertexProgramTwoSide
;
140 /* GL_ARB_point_sprite / GL_NV_point_sprite */
141 GLboolean PointSprite
;
142 GLboolean FragmentShaderATI
;
147 * Node for the attribute stack.
149 struct gl_attrib_node
153 struct gl_attrib_node
*next
;
159 * Special struct for saving/restoring texture state (GL_TEXTURE_BIT)
163 struct gl_texture_attrib Texture
; /**< The usual context state */
165 /** to save per texture object state (wrap modes, filters, etc): */
166 struct gl_texture_object SavedObj
[MAX_TEXTURE_UNITS
][NUM_TEXTURE_TARGETS
];
169 * To save references to texture objects (so they don't get accidentally
170 * deleted while saved in the attribute stack).
172 struct gl_texture_object
*SavedTexRef
[MAX_TEXTURE_UNITS
][NUM_TEXTURE_TARGETS
];
176 #if FEATURE_attrib_stack
180 * Allocate new attribute node of given type/kind. Attach payload data.
181 * Insert it into the linked list named by 'head'.
184 save_attrib_data(struct gl_attrib_node
**head
,
185 GLbitfield kind
, void *payload
)
187 struct gl_attrib_node
*n
= MALLOC_STRUCT(gl_attrib_node
);
202 _mesa_PushAttrib(GLbitfield mask
)
204 struct gl_attrib_node
*head
;
206 GET_CURRENT_CONTEXT(ctx
);
207 ASSERT_OUTSIDE_BEGIN_END(ctx
);
209 if (MESA_VERBOSE
& VERBOSE_API
)
210 _mesa_debug(ctx
, "glPushAttrib %x\n", (int) mask
);
212 if (ctx
->AttribStackDepth
>= MAX_ATTRIB_STACK_DEPTH
) {
213 _mesa_error( ctx
, GL_STACK_OVERFLOW
, "glPushAttrib" );
217 /* Build linked list of attribute nodes which save all attribute */
218 /* groups specified by the mask. */
221 if (mask
& GL_ACCUM_BUFFER_BIT
) {
222 struct gl_accum_attrib
*attr
;
223 attr
= MALLOC_STRUCT( gl_accum_attrib
);
224 memcpy( attr
, &ctx
->Accum
, sizeof(struct gl_accum_attrib
) );
225 save_attrib_data(&head
, GL_ACCUM_BUFFER_BIT
, attr
);
228 if (mask
& GL_COLOR_BUFFER_BIT
) {
230 struct gl_colorbuffer_attrib
*attr
;
231 attr
= MALLOC_STRUCT( gl_colorbuffer_attrib
);
232 memcpy( attr
, &ctx
->Color
, sizeof(struct gl_colorbuffer_attrib
) );
233 /* push the Draw FBO's DrawBuffer[] state, not ctx->Color.DrawBuffer[] */
234 for (i
= 0; i
< ctx
->Const
.MaxDrawBuffers
; i
++)
235 attr
->DrawBuffer
[i
] = ctx
->DrawBuffer
->ColorDrawBuffer
[i
];
236 save_attrib_data(&head
, GL_COLOR_BUFFER_BIT
, attr
);
239 if (mask
& GL_CURRENT_BIT
) {
240 struct gl_current_attrib
*attr
;
241 FLUSH_CURRENT( ctx
, 0 );
242 attr
= MALLOC_STRUCT( gl_current_attrib
);
243 memcpy( attr
, &ctx
->Current
, sizeof(struct gl_current_attrib
) );
244 save_attrib_data(&head
, GL_CURRENT_BIT
, attr
);
247 if (mask
& GL_DEPTH_BUFFER_BIT
) {
248 struct gl_depthbuffer_attrib
*attr
;
249 attr
= MALLOC_STRUCT( gl_depthbuffer_attrib
);
250 memcpy( attr
, &ctx
->Depth
, sizeof(struct gl_depthbuffer_attrib
) );
251 save_attrib_data(&head
, GL_DEPTH_BUFFER_BIT
, attr
);
254 if (mask
& GL_ENABLE_BIT
) {
255 struct gl_enable_attrib
*attr
;
257 attr
= MALLOC_STRUCT( gl_enable_attrib
);
258 /* Copy enable flags from all other attributes into the enable struct. */
259 attr
->AlphaTest
= ctx
->Color
.AlphaEnabled
;
260 attr
->AutoNormal
= ctx
->Eval
.AutoNormal
;
261 attr
->Blend
= ctx
->Color
.BlendEnabled
;
262 attr
->ClipPlanes
= ctx
->Transform
.ClipPlanesEnabled
;
263 attr
->ColorMaterial
= ctx
->Light
.ColorMaterialEnabled
;
264 for (i
= 0; i
< COLORTABLE_MAX
; i
++) {
265 attr
->ColorTable
[i
] = ctx
->Pixel
.ColorTableEnabled
[i
];
267 attr
->Convolution1D
= ctx
->Pixel
.Convolution1DEnabled
;
268 attr
->Convolution2D
= ctx
->Pixel
.Convolution2DEnabled
;
269 attr
->Separable2D
= ctx
->Pixel
.Separable2DEnabled
;
270 attr
->CullFace
= ctx
->Polygon
.CullFlag
;
271 attr
->DepthClamp
= ctx
->Transform
.DepthClamp
;
272 attr
->DepthTest
= ctx
->Depth
.Test
;
273 attr
->Dither
= ctx
->Color
.DitherFlag
;
274 attr
->Fog
= ctx
->Fog
.Enabled
;
275 for (i
= 0; i
< ctx
->Const
.MaxLights
; i
++) {
276 attr
->Light
[i
] = ctx
->Light
.Light
[i
].Enabled
;
278 attr
->Lighting
= ctx
->Light
.Enabled
;
279 attr
->LineSmooth
= ctx
->Line
.SmoothFlag
;
280 attr
->LineStipple
= ctx
->Line
.StippleFlag
;
281 attr
->Histogram
= ctx
->Pixel
.HistogramEnabled
;
282 attr
->MinMax
= ctx
->Pixel
.MinMaxEnabled
;
283 attr
->IndexLogicOp
= ctx
->Color
.IndexLogicOpEnabled
;
284 attr
->ColorLogicOp
= ctx
->Color
.ColorLogicOpEnabled
;
285 attr
->Map1Color4
= ctx
->Eval
.Map1Color4
;
286 attr
->Map1Index
= ctx
->Eval
.Map1Index
;
287 attr
->Map1Normal
= ctx
->Eval
.Map1Normal
;
288 attr
->Map1TextureCoord1
= ctx
->Eval
.Map1TextureCoord1
;
289 attr
->Map1TextureCoord2
= ctx
->Eval
.Map1TextureCoord2
;
290 attr
->Map1TextureCoord3
= ctx
->Eval
.Map1TextureCoord3
;
291 attr
->Map1TextureCoord4
= ctx
->Eval
.Map1TextureCoord4
;
292 attr
->Map1Vertex3
= ctx
->Eval
.Map1Vertex3
;
293 attr
->Map1Vertex4
= ctx
->Eval
.Map1Vertex4
;
294 memcpy(attr
->Map1Attrib
, ctx
->Eval
.Map1Attrib
, sizeof(ctx
->Eval
.Map1Attrib
));
295 attr
->Map2Color4
= ctx
->Eval
.Map2Color4
;
296 attr
->Map2Index
= ctx
->Eval
.Map2Index
;
297 attr
->Map2Normal
= ctx
->Eval
.Map2Normal
;
298 attr
->Map2TextureCoord1
= ctx
->Eval
.Map2TextureCoord1
;
299 attr
->Map2TextureCoord2
= ctx
->Eval
.Map2TextureCoord2
;
300 attr
->Map2TextureCoord3
= ctx
->Eval
.Map2TextureCoord3
;
301 attr
->Map2TextureCoord4
= ctx
->Eval
.Map2TextureCoord4
;
302 attr
->Map2Vertex3
= ctx
->Eval
.Map2Vertex3
;
303 attr
->Map2Vertex4
= ctx
->Eval
.Map2Vertex4
;
304 memcpy(attr
->Map2Attrib
, ctx
->Eval
.Map2Attrib
, sizeof(ctx
->Eval
.Map2Attrib
));
305 attr
->Normalize
= ctx
->Transform
.Normalize
;
306 attr
->RasterPositionUnclipped
= ctx
->Transform
.RasterPositionUnclipped
;
307 attr
->PointSmooth
= ctx
->Point
.SmoothFlag
;
308 attr
->PointSprite
= ctx
->Point
.PointSprite
;
309 attr
->PolygonOffsetPoint
= ctx
->Polygon
.OffsetPoint
;
310 attr
->PolygonOffsetLine
= ctx
->Polygon
.OffsetLine
;
311 attr
->PolygonOffsetFill
= ctx
->Polygon
.OffsetFill
;
312 attr
->PolygonSmooth
= ctx
->Polygon
.SmoothFlag
;
313 attr
->PolygonStipple
= ctx
->Polygon
.StippleFlag
;
314 attr
->RescaleNormals
= ctx
->Transform
.RescaleNormals
;
315 attr
->Scissor
= ctx
->Scissor
.Enabled
;
316 attr
->Stencil
= ctx
->Stencil
.Enabled
;
317 attr
->StencilTwoSide
= ctx
->Stencil
.TestTwoSide
;
318 attr
->MultisampleEnabled
= ctx
->Multisample
.Enabled
;
319 attr
->SampleAlphaToCoverage
= ctx
->Multisample
.SampleAlphaToCoverage
;
320 attr
->SampleAlphaToOne
= ctx
->Multisample
.SampleAlphaToOne
;
321 attr
->SampleCoverage
= ctx
->Multisample
.SampleCoverage
;
322 attr
->SampleCoverageInvert
= ctx
->Multisample
.SampleCoverageInvert
;
323 for (i
= 0; i
< ctx
->Const
.MaxTextureUnits
; i
++) {
324 attr
->Texture
[i
] = ctx
->Texture
.Unit
[i
].Enabled
;
325 attr
->TexGen
[i
] = ctx
->Texture
.Unit
[i
].TexGenEnabled
;
326 attr
->TextureColorTable
[i
] = ctx
->Texture
.Unit
[i
].ColorTableEnabled
;
328 /* GL_NV_vertex_program */
329 attr
->VertexProgram
= ctx
->VertexProgram
.Enabled
;
330 attr
->VertexProgramPointSize
= ctx
->VertexProgram
.PointSizeEnabled
;
331 attr
->VertexProgramTwoSide
= ctx
->VertexProgram
.TwoSideEnabled
;
332 save_attrib_data(&head
, GL_ENABLE_BIT
, attr
);
335 if (mask
& GL_EVAL_BIT
) {
336 struct gl_eval_attrib
*attr
;
337 attr
= MALLOC_STRUCT( gl_eval_attrib
);
338 memcpy( attr
, &ctx
->Eval
, sizeof(struct gl_eval_attrib
) );
339 save_attrib_data(&head
, GL_EVAL_BIT
, attr
);
342 if (mask
& GL_FOG_BIT
) {
343 struct gl_fog_attrib
*attr
;
344 attr
= MALLOC_STRUCT( gl_fog_attrib
);
345 memcpy( attr
, &ctx
->Fog
, sizeof(struct gl_fog_attrib
) );
346 save_attrib_data(&head
, GL_FOG_BIT
, attr
);
349 if (mask
& GL_HINT_BIT
) {
350 struct gl_hint_attrib
*attr
;
351 attr
= MALLOC_STRUCT( gl_hint_attrib
);
352 memcpy( attr
, &ctx
->Hint
, sizeof(struct gl_hint_attrib
) );
353 save_attrib_data(&head
, GL_HINT_BIT
, attr
);
356 if (mask
& GL_LIGHTING_BIT
) {
357 struct gl_light_attrib
*attr
;
358 FLUSH_CURRENT(ctx
, 0); /* flush material changes */
359 attr
= MALLOC_STRUCT( gl_light_attrib
);
360 memcpy( attr
, &ctx
->Light
, sizeof(struct gl_light_attrib
) );
361 save_attrib_data(&head
, GL_LIGHTING_BIT
, attr
);
364 if (mask
& GL_LINE_BIT
) {
365 struct gl_line_attrib
*attr
;
366 attr
= MALLOC_STRUCT( gl_line_attrib
);
367 memcpy( attr
, &ctx
->Line
, sizeof(struct gl_line_attrib
) );
368 save_attrib_data(&head
, GL_LINE_BIT
, attr
);
371 if (mask
& GL_LIST_BIT
) {
372 struct gl_list_attrib
*attr
;
373 attr
= MALLOC_STRUCT( gl_list_attrib
);
374 memcpy( attr
, &ctx
->List
, sizeof(struct gl_list_attrib
) );
375 save_attrib_data(&head
, GL_LIST_BIT
, attr
);
378 if (mask
& GL_PIXEL_MODE_BIT
) {
379 struct gl_pixel_attrib
*attr
;
380 attr
= MALLOC_STRUCT( gl_pixel_attrib
);
381 memcpy( attr
, &ctx
->Pixel
, sizeof(struct gl_pixel_attrib
) );
382 /* push the Read FBO's ReadBuffer state, not ctx->Pixel.ReadBuffer */
383 attr
->ReadBuffer
= ctx
->ReadBuffer
->ColorReadBuffer
;
384 save_attrib_data(&head
, GL_PIXEL_MODE_BIT
, attr
);
387 if (mask
& GL_POINT_BIT
) {
388 struct gl_point_attrib
*attr
;
389 attr
= MALLOC_STRUCT( gl_point_attrib
);
390 memcpy( attr
, &ctx
->Point
, sizeof(struct gl_point_attrib
) );
391 save_attrib_data(&head
, GL_POINT_BIT
, attr
);
394 if (mask
& GL_POLYGON_BIT
) {
395 struct gl_polygon_attrib
*attr
;
396 attr
= MALLOC_STRUCT( gl_polygon_attrib
);
397 memcpy( attr
, &ctx
->Polygon
, sizeof(struct gl_polygon_attrib
) );
398 save_attrib_data(&head
, GL_POLYGON_BIT
, attr
);
401 if (mask
& GL_POLYGON_STIPPLE_BIT
) {
403 stipple
= (GLuint
*) MALLOC( 32*sizeof(GLuint
) );
404 memcpy( stipple
, ctx
->PolygonStipple
, 32*sizeof(GLuint
) );
405 save_attrib_data(&head
, GL_POLYGON_STIPPLE_BIT
, stipple
);
408 if (mask
& GL_SCISSOR_BIT
) {
409 struct gl_scissor_attrib
*attr
;
410 attr
= MALLOC_STRUCT( gl_scissor_attrib
);
411 memcpy( attr
, &ctx
->Scissor
, sizeof(struct gl_scissor_attrib
) );
412 save_attrib_data(&head
, GL_SCISSOR_BIT
, attr
);
415 if (mask
& GL_STENCIL_BUFFER_BIT
) {
416 struct gl_stencil_attrib
*attr
;
417 attr
= MALLOC_STRUCT( gl_stencil_attrib
);
418 memcpy( attr
, &ctx
->Stencil
, sizeof(struct gl_stencil_attrib
) );
419 save_attrib_data(&head
, GL_STENCIL_BUFFER_BIT
, attr
);
422 if (mask
& GL_TEXTURE_BIT
) {
423 struct texture_state
*texstate
= CALLOC_STRUCT(texture_state
);
427 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glPushAttrib(GL_TEXTURE_BIT)");
431 _mesa_lock_context_textures(ctx
);
433 /* copy/save the bulk of texture state here */
434 memcpy(&texstate
->Texture
, &ctx
->Texture
, sizeof(ctx
->Texture
));
436 /* Save references to the currently bound texture objects so they don't
437 * accidentally get deleted while referenced in the attribute stack.
439 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
440 for (tex
= 0; tex
< NUM_TEXTURE_TARGETS
; tex
++) {
441 _mesa_reference_texobj(&texstate
->SavedTexRef
[u
][tex
],
442 ctx
->Texture
.Unit
[u
].CurrentTex
[tex
]);
446 /* copy state/contents of the currently bound texture objects */
447 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
448 for (tex
= 0; tex
< NUM_TEXTURE_TARGETS
; tex
++) {
449 _mesa_copy_texture_object(&texstate
->SavedObj
[u
][tex
],
450 ctx
->Texture
.Unit
[u
].CurrentTex
[tex
]);
454 _mesa_unlock_context_textures(ctx
);
456 save_attrib_data(&head
, GL_TEXTURE_BIT
, texstate
);
459 if (mask
& GL_TRANSFORM_BIT
) {
460 struct gl_transform_attrib
*attr
;
461 attr
= MALLOC_STRUCT( gl_transform_attrib
);
462 memcpy( attr
, &ctx
->Transform
, sizeof(struct gl_transform_attrib
) );
463 save_attrib_data(&head
, GL_TRANSFORM_BIT
, attr
);
466 if (mask
& GL_VIEWPORT_BIT
) {
467 struct gl_viewport_attrib
*attr
;
468 attr
= MALLOC_STRUCT( gl_viewport_attrib
);
469 memcpy( attr
, &ctx
->Viewport
, sizeof(struct gl_viewport_attrib
) );
470 save_attrib_data(&head
, GL_VIEWPORT_BIT
, attr
);
473 /* GL_ARB_multisample */
474 if (mask
& GL_MULTISAMPLE_BIT_ARB
) {
475 struct gl_multisample_attrib
*attr
;
476 attr
= MALLOC_STRUCT( gl_multisample_attrib
);
477 memcpy( attr
, &ctx
->Multisample
, sizeof(struct gl_multisample_attrib
) );
478 save_attrib_data(&head
, GL_MULTISAMPLE_BIT_ARB
, attr
);
482 ctx
->AttribStack
[ctx
->AttribStackDepth
] = head
;
483 ctx
->AttribStackDepth
++;
489 pop_enable_group(GLcontext
*ctx
, const struct gl_enable_attrib
*enable
)
491 const GLuint curTexUnitSave
= ctx
->Texture
.CurrentUnit
;
494 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM) \
495 if ((VALUE) != (NEWVALUE)) { \
496 _mesa_set_enable( ctx, ENUM, (NEWVALUE) ); \
499 TEST_AND_UPDATE(ctx
->Color
.AlphaEnabled
, enable
->AlphaTest
, GL_ALPHA_TEST
);
500 if (ctx
->Color
.BlendEnabled
!= enable
->Blend
) {
501 if (ctx
->Extensions
.EXT_draw_buffers2
) {
503 for (i
= 0; i
< ctx
->Const
.MaxDrawBuffers
; i
++) {
504 _mesa_set_enablei(ctx
, GL_BLEND
, i
, (enable
->Blend
>> i
) & 1);
508 _mesa_set_enable(ctx
, GL_BLEND
, (enable
->Blend
& 1));
512 for (i
=0;i
<MAX_CLIP_PLANES
;i
++) {
513 const GLuint mask
= 1 << i
;
514 if ((ctx
->Transform
.ClipPlanesEnabled
& mask
) != (enable
->ClipPlanes
& mask
))
515 _mesa_set_enable(ctx
, (GLenum
) (GL_CLIP_PLANE0
+ i
),
516 (GLboolean
) ((enable
->ClipPlanes
& mask
) ? GL_TRUE
: GL_FALSE
));
519 TEST_AND_UPDATE(ctx
->Light
.ColorMaterialEnabled
, enable
->ColorMaterial
,
521 TEST_AND_UPDATE(ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_PRECONVOLUTION
],
522 enable
->ColorTable
[COLORTABLE_PRECONVOLUTION
],
524 TEST_AND_UPDATE(ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCONVOLUTION
],
525 enable
->ColorTable
[COLORTABLE_POSTCONVOLUTION
],
526 GL_POST_CONVOLUTION_COLOR_TABLE
);
527 TEST_AND_UPDATE(ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCOLORMATRIX
],
528 enable
->ColorTable
[COLORTABLE_POSTCOLORMATRIX
],
529 GL_POST_COLOR_MATRIX_COLOR_TABLE
);
530 TEST_AND_UPDATE(ctx
->Polygon
.CullFlag
, enable
->CullFace
, GL_CULL_FACE
);
531 TEST_AND_UPDATE(ctx
->Transform
.DepthClamp
, enable
->DepthClamp
,
533 TEST_AND_UPDATE(ctx
->Depth
.Test
, enable
->DepthTest
, GL_DEPTH_TEST
);
534 TEST_AND_UPDATE(ctx
->Color
.DitherFlag
, enable
->Dither
, GL_DITHER
);
535 TEST_AND_UPDATE(ctx
->Pixel
.Convolution1DEnabled
, enable
->Convolution1D
,
537 TEST_AND_UPDATE(ctx
->Pixel
.Convolution2DEnabled
, enable
->Convolution2D
,
539 TEST_AND_UPDATE(ctx
->Pixel
.Separable2DEnabled
, enable
->Separable2D
,
541 TEST_AND_UPDATE(ctx
->Fog
.Enabled
, enable
->Fog
, GL_FOG
);
542 TEST_AND_UPDATE(ctx
->Light
.Enabled
, enable
->Lighting
, GL_LIGHTING
);
543 TEST_AND_UPDATE(ctx
->Line
.SmoothFlag
, enable
->LineSmooth
, GL_LINE_SMOOTH
);
544 TEST_AND_UPDATE(ctx
->Line
.StippleFlag
, enable
->LineStipple
,
546 TEST_AND_UPDATE(ctx
->Color
.IndexLogicOpEnabled
, enable
->IndexLogicOp
,
548 TEST_AND_UPDATE(ctx
->Color
.ColorLogicOpEnabled
, enable
->ColorLogicOp
,
551 TEST_AND_UPDATE(ctx
->Eval
.Map1Color4
, enable
->Map1Color4
, GL_MAP1_COLOR_4
);
552 TEST_AND_UPDATE(ctx
->Eval
.Map1Index
, enable
->Map1Index
, GL_MAP1_INDEX
);
553 TEST_AND_UPDATE(ctx
->Eval
.Map1Normal
, enable
->Map1Normal
, GL_MAP1_NORMAL
);
554 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord1
, enable
->Map1TextureCoord1
,
555 GL_MAP1_TEXTURE_COORD_1
);
556 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord2
, enable
->Map1TextureCoord2
,
557 GL_MAP1_TEXTURE_COORD_2
);
558 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord3
, enable
->Map1TextureCoord3
,
559 GL_MAP1_TEXTURE_COORD_3
);
560 TEST_AND_UPDATE(ctx
->Eval
.Map1TextureCoord4
, enable
->Map1TextureCoord4
,
561 GL_MAP1_TEXTURE_COORD_4
);
562 TEST_AND_UPDATE(ctx
->Eval
.Map1Vertex3
, enable
->Map1Vertex3
,
564 TEST_AND_UPDATE(ctx
->Eval
.Map1Vertex4
, enable
->Map1Vertex4
,
566 for (i
= 0; i
< 16; i
++) {
567 TEST_AND_UPDATE(ctx
->Eval
.Map1Attrib
[i
], enable
->Map1Attrib
[i
],
568 GL_MAP1_VERTEX_ATTRIB0_4_NV
+ i
);
571 TEST_AND_UPDATE(ctx
->Eval
.Map2Color4
, enable
->Map2Color4
, GL_MAP2_COLOR_4
);
572 TEST_AND_UPDATE(ctx
->Eval
.Map2Index
, enable
->Map2Index
, GL_MAP2_INDEX
);
573 TEST_AND_UPDATE(ctx
->Eval
.Map2Normal
, enable
->Map2Normal
, GL_MAP2_NORMAL
);
574 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord1
, enable
->Map2TextureCoord1
,
575 GL_MAP2_TEXTURE_COORD_1
);
576 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord2
, enable
->Map2TextureCoord2
,
577 GL_MAP2_TEXTURE_COORD_2
);
578 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord3
, enable
->Map2TextureCoord3
,
579 GL_MAP2_TEXTURE_COORD_3
);
580 TEST_AND_UPDATE(ctx
->Eval
.Map2TextureCoord4
, enable
->Map2TextureCoord4
,
581 GL_MAP2_TEXTURE_COORD_4
);
582 TEST_AND_UPDATE(ctx
->Eval
.Map2Vertex3
, enable
->Map2Vertex3
,
584 TEST_AND_UPDATE(ctx
->Eval
.Map2Vertex4
, enable
->Map2Vertex4
,
586 for (i
= 0; i
< 16; i
++) {
587 TEST_AND_UPDATE(ctx
->Eval
.Map2Attrib
[i
], enable
->Map2Attrib
[i
],
588 GL_MAP2_VERTEX_ATTRIB0_4_NV
+ i
);
591 TEST_AND_UPDATE(ctx
->Eval
.AutoNormal
, enable
->AutoNormal
, GL_AUTO_NORMAL
);
592 TEST_AND_UPDATE(ctx
->Transform
.Normalize
, enable
->Normalize
, GL_NORMALIZE
);
593 TEST_AND_UPDATE(ctx
->Transform
.RescaleNormals
, enable
->RescaleNormals
,
594 GL_RESCALE_NORMAL_EXT
);
595 TEST_AND_UPDATE(ctx
->Transform
.RasterPositionUnclipped
,
596 enable
->RasterPositionUnclipped
,
597 GL_RASTER_POSITION_UNCLIPPED_IBM
);
598 TEST_AND_UPDATE(ctx
->Point
.SmoothFlag
, enable
->PointSmooth
,
600 if (ctx
->Extensions
.NV_point_sprite
|| ctx
->Extensions
.ARB_point_sprite
) {
601 TEST_AND_UPDATE(ctx
->Point
.PointSprite
, enable
->PointSprite
,
604 TEST_AND_UPDATE(ctx
->Polygon
.OffsetPoint
, enable
->PolygonOffsetPoint
,
605 GL_POLYGON_OFFSET_POINT
);
606 TEST_AND_UPDATE(ctx
->Polygon
.OffsetLine
, enable
->PolygonOffsetLine
,
607 GL_POLYGON_OFFSET_LINE
);
608 TEST_AND_UPDATE(ctx
->Polygon
.OffsetFill
, enable
->PolygonOffsetFill
,
609 GL_POLYGON_OFFSET_FILL
);
610 TEST_AND_UPDATE(ctx
->Polygon
.SmoothFlag
, enable
->PolygonSmooth
,
612 TEST_AND_UPDATE(ctx
->Polygon
.StippleFlag
, enable
->PolygonStipple
,
614 TEST_AND_UPDATE(ctx
->Scissor
.Enabled
, enable
->Scissor
, GL_SCISSOR_TEST
);
615 TEST_AND_UPDATE(ctx
->Stencil
.Enabled
, enable
->Stencil
, GL_STENCIL_TEST
);
616 if (ctx
->Extensions
.EXT_stencil_two_side
) {
617 TEST_AND_UPDATE(ctx
->Stencil
.TestTwoSide
, enable
->StencilTwoSide
, GL_STENCIL_TEST_TWO_SIDE_EXT
);
619 TEST_AND_UPDATE(ctx
->Multisample
.Enabled
, enable
->MultisampleEnabled
,
621 TEST_AND_UPDATE(ctx
->Multisample
.SampleAlphaToCoverage
,
622 enable
->SampleAlphaToCoverage
,
623 GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
);
624 TEST_AND_UPDATE(ctx
->Multisample
.SampleAlphaToOne
,
625 enable
->SampleAlphaToOne
,
626 GL_SAMPLE_ALPHA_TO_ONE_ARB
);
627 TEST_AND_UPDATE(ctx
->Multisample
.SampleCoverage
,
628 enable
->SampleCoverage
,
629 GL_SAMPLE_COVERAGE_ARB
);
630 TEST_AND_UPDATE(ctx
->Multisample
.SampleCoverageInvert
,
631 enable
->SampleCoverageInvert
,
632 GL_SAMPLE_COVERAGE_INVERT_ARB
);
633 /* GL_ARB_vertex_program, GL_NV_vertex_program */
634 TEST_AND_UPDATE(ctx
->VertexProgram
.Enabled
,
635 enable
->VertexProgram
,
636 GL_VERTEX_PROGRAM_ARB
);
637 TEST_AND_UPDATE(ctx
->VertexProgram
.PointSizeEnabled
,
638 enable
->VertexProgramPointSize
,
639 GL_VERTEX_PROGRAM_POINT_SIZE_ARB
);
640 TEST_AND_UPDATE(ctx
->VertexProgram
.TwoSideEnabled
,
641 enable
->VertexProgramTwoSide
,
642 GL_VERTEX_PROGRAM_TWO_SIDE_ARB
);
644 #undef TEST_AND_UPDATE
646 /* texture unit enables */
647 for (i
= 0; i
< ctx
->Const
.MaxTextureUnits
; i
++) {
648 const GLbitfield enabled
= enable
->Texture
[i
];
649 const GLbitfield genEnabled
= enable
->TexGen
[i
];
651 if (ctx
->Texture
.Unit
[i
].Enabled
!= enabled
) {
652 _mesa_ActiveTextureARB(GL_TEXTURE0
+ i
);
654 _mesa_set_enable(ctx
, GL_TEXTURE_1D
,
655 (enabled
& TEXTURE_1D_BIT
) ? GL_TRUE
: GL_FALSE
);
656 _mesa_set_enable(ctx
, GL_TEXTURE_2D
,
657 (enabled
& TEXTURE_2D_BIT
) ? GL_TRUE
: GL_FALSE
);
658 _mesa_set_enable(ctx
, GL_TEXTURE_3D
,
659 (enabled
& TEXTURE_3D_BIT
) ? GL_TRUE
: GL_FALSE
);
660 if (ctx
->Extensions
.NV_texture_rectangle
) {
661 _mesa_set_enable(ctx
, GL_TEXTURE_RECTANGLE_ARB
,
662 (enabled
& TEXTURE_RECT_BIT
) ? GL_TRUE
: GL_FALSE
);
664 if (ctx
->Extensions
.ARB_texture_cube_map
) {
665 _mesa_set_enable(ctx
, GL_TEXTURE_CUBE_MAP
,
666 (enabled
& TEXTURE_CUBE_BIT
) ? GL_TRUE
: GL_FALSE
);
668 if (ctx
->Extensions
.MESA_texture_array
) {
669 _mesa_set_enable(ctx
, GL_TEXTURE_1D_ARRAY_EXT
,
670 (enabled
& TEXTURE_1D_ARRAY_BIT
) ? GL_TRUE
: GL_FALSE
);
671 _mesa_set_enable(ctx
, GL_TEXTURE_2D_ARRAY_EXT
,
672 (enabled
& TEXTURE_2D_ARRAY_BIT
) ? GL_TRUE
: GL_FALSE
);
676 if (ctx
->Texture
.Unit
[i
].TexGenEnabled
!= genEnabled
) {
677 _mesa_ActiveTextureARB(GL_TEXTURE0
+ i
);
678 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_S
,
679 (genEnabled
& S_BIT
) ? GL_TRUE
: GL_FALSE
);
680 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_T
,
681 (genEnabled
& T_BIT
) ? GL_TRUE
: GL_FALSE
);
682 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_R
,
683 (genEnabled
& R_BIT
) ? GL_TRUE
: GL_FALSE
);
684 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_Q
,
685 (genEnabled
& Q_BIT
) ? GL_TRUE
: GL_FALSE
);
688 /* GL_SGI_texture_color_table */
689 ctx
->Texture
.Unit
[i
].ColorTableEnabled
= enable
->TextureColorTable
[i
];
692 _mesa_ActiveTextureARB(GL_TEXTURE0
+ curTexUnitSave
);
697 * Pop/restore texture attribute/group state.
700 pop_texture_group(GLcontext
*ctx
, struct texture_state
*texstate
)
704 _mesa_lock_context_textures(ctx
);
706 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
707 const struct gl_texture_unit
*unit
= &texstate
->Texture
.Unit
[u
];
710 _mesa_ActiveTextureARB(GL_TEXTURE0_ARB
+ u
);
711 _mesa_set_enable(ctx
, GL_TEXTURE_1D
,
712 (unit
->Enabled
& TEXTURE_1D_BIT
) ? GL_TRUE
: GL_FALSE
);
713 _mesa_set_enable(ctx
, GL_TEXTURE_2D
,
714 (unit
->Enabled
& TEXTURE_2D_BIT
) ? GL_TRUE
: GL_FALSE
);
715 _mesa_set_enable(ctx
, GL_TEXTURE_3D
,
716 (unit
->Enabled
& TEXTURE_3D_BIT
) ? GL_TRUE
: GL_FALSE
);
717 if (ctx
->Extensions
.ARB_texture_cube_map
) {
718 _mesa_set_enable(ctx
, GL_TEXTURE_CUBE_MAP_ARB
,
719 (unit
->Enabled
& TEXTURE_CUBE_BIT
) ? GL_TRUE
: GL_FALSE
);
721 if (ctx
->Extensions
.NV_texture_rectangle
) {
722 _mesa_set_enable(ctx
, GL_TEXTURE_RECTANGLE_NV
,
723 (unit
->Enabled
& TEXTURE_RECT_BIT
) ? GL_TRUE
: GL_FALSE
);
725 if (ctx
->Extensions
.MESA_texture_array
) {
726 _mesa_set_enable(ctx
, GL_TEXTURE_1D_ARRAY_EXT
,
727 (unit
->Enabled
& TEXTURE_1D_ARRAY_BIT
) ? GL_TRUE
: GL_FALSE
);
728 _mesa_set_enable(ctx
, GL_TEXTURE_2D_ARRAY_EXT
,
729 (unit
->Enabled
& TEXTURE_2D_ARRAY_BIT
) ? GL_TRUE
: GL_FALSE
);
732 if (ctx
->Extensions
.SGI_texture_color_table
) {
733 _mesa_set_enable(ctx
, GL_TEXTURE_COLOR_TABLE_SGI
,
734 unit
->ColorTableEnabled
);
736 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_TEXTURE_ENV_MODE
, unit
->EnvMode
);
737 _mesa_TexEnvfv(GL_TEXTURE_ENV
, GL_TEXTURE_ENV_COLOR
, unit
->EnvColor
);
738 _mesa_TexGeni(GL_S
, GL_TEXTURE_GEN_MODE
, unit
->GenS
.Mode
);
739 _mesa_TexGeni(GL_T
, GL_TEXTURE_GEN_MODE
, unit
->GenT
.Mode
);
740 _mesa_TexGeni(GL_R
, GL_TEXTURE_GEN_MODE
, unit
->GenR
.Mode
);
741 _mesa_TexGeni(GL_Q
, GL_TEXTURE_GEN_MODE
, unit
->GenQ
.Mode
);
742 _mesa_TexGenfv(GL_S
, GL_OBJECT_PLANE
, unit
->GenS
.ObjectPlane
);
743 _mesa_TexGenfv(GL_T
, GL_OBJECT_PLANE
, unit
->GenT
.ObjectPlane
);
744 _mesa_TexGenfv(GL_R
, GL_OBJECT_PLANE
, unit
->GenR
.ObjectPlane
);
745 _mesa_TexGenfv(GL_Q
, GL_OBJECT_PLANE
, unit
->GenQ
.ObjectPlane
);
746 /* Eye plane done differently to avoid re-transformation */
748 struct gl_texture_unit
*destUnit
= &ctx
->Texture
.Unit
[u
];
749 COPY_4FV(destUnit
->GenS
.EyePlane
, unit
->GenS
.EyePlane
);
750 COPY_4FV(destUnit
->GenT
.EyePlane
, unit
->GenT
.EyePlane
);
751 COPY_4FV(destUnit
->GenR
.EyePlane
, unit
->GenR
.EyePlane
);
752 COPY_4FV(destUnit
->GenQ
.EyePlane
, unit
->GenQ
.EyePlane
);
753 if (ctx
->Driver
.TexGen
) {
754 ctx
->Driver
.TexGen(ctx
, GL_S
, GL_EYE_PLANE
, unit
->GenS
.EyePlane
);
755 ctx
->Driver
.TexGen(ctx
, GL_T
, GL_EYE_PLANE
, unit
->GenT
.EyePlane
);
756 ctx
->Driver
.TexGen(ctx
, GL_R
, GL_EYE_PLANE
, unit
->GenR
.EyePlane
);
757 ctx
->Driver
.TexGen(ctx
, GL_Q
, GL_EYE_PLANE
, unit
->GenQ
.EyePlane
);
760 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_S
,
761 ((unit
->TexGenEnabled
& S_BIT
) ? GL_TRUE
: GL_FALSE
));
762 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_T
,
763 ((unit
->TexGenEnabled
& T_BIT
) ? GL_TRUE
: GL_FALSE
));
764 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_R
,
765 ((unit
->TexGenEnabled
& R_BIT
) ? GL_TRUE
: GL_FALSE
));
766 _mesa_set_enable(ctx
, GL_TEXTURE_GEN_Q
,
767 ((unit
->TexGenEnabled
& Q_BIT
) ? GL_TRUE
: GL_FALSE
));
768 if (ctx
->Extensions
.EXT_texture_lod_bias
) {
769 _mesa_TexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT
,
770 GL_TEXTURE_LOD_BIAS_EXT
, unit
->LodBias
);
772 if (ctx
->Extensions
.EXT_texture_env_combine
||
773 ctx
->Extensions
.ARB_texture_env_combine
) {
774 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_COMBINE_RGB
,
775 unit
->Combine
.ModeRGB
);
776 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_COMBINE_ALPHA
,
777 unit
->Combine
.ModeA
);
778 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE0_RGB
,
779 unit
->Combine
.SourceRGB
[0]);
780 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE1_RGB
,
781 unit
->Combine
.SourceRGB
[1]);
782 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE2_RGB
,
783 unit
->Combine
.SourceRGB
[2]);
784 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE0_ALPHA
,
785 unit
->Combine
.SourceA
[0]);
786 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE1_ALPHA
,
787 unit
->Combine
.SourceA
[1]);
788 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_SOURCE2_ALPHA
,
789 unit
->Combine
.SourceA
[2]);
790 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND0_RGB
,
791 unit
->Combine
.OperandRGB
[0]);
792 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND1_RGB
,
793 unit
->Combine
.OperandRGB
[1]);
794 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND2_RGB
,
795 unit
->Combine
.OperandRGB
[2]);
796 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND0_ALPHA
,
797 unit
->Combine
.OperandA
[0]);
798 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND1_ALPHA
,
799 unit
->Combine
.OperandA
[1]);
800 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_OPERAND2_ALPHA
,
801 unit
->Combine
.OperandA
[2]);
802 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_RGB_SCALE
,
803 1 << unit
->Combine
.ScaleShiftRGB
);
804 _mesa_TexEnvi(GL_TEXTURE_ENV
, GL_ALPHA_SCALE
,
805 1 << unit
->Combine
.ScaleShiftA
);
808 /* Restore texture object state for each target */
809 for (tgt
= 0; tgt
< NUM_TEXTURE_TARGETS
; tgt
++) {
810 const struct gl_texture_object
*obj
= NULL
;
813 obj
= &texstate
->SavedObj
[u
][tgt
];
815 /* don't restore state for unsupported targets to prevent
818 if (obj
->Target
== GL_TEXTURE_CUBE_MAP_ARB
&&
819 !ctx
->Extensions
.ARB_texture_cube_map
) {
822 else if (obj
->Target
== GL_TEXTURE_RECTANGLE_NV
&&
823 !ctx
->Extensions
.NV_texture_rectangle
) {
826 else if ((obj
->Target
== GL_TEXTURE_1D_ARRAY_EXT
||
827 obj
->Target
== GL_TEXTURE_2D_ARRAY_EXT
) &&
828 !ctx
->Extensions
.MESA_texture_array
) {
832 target
= obj
->Target
;
834 _mesa_BindTexture(target
, obj
->Name
);
836 _mesa_TexParameterfv(target
, GL_TEXTURE_BORDER_COLOR
, obj
->BorderColor
.f
);
837 _mesa_TexParameterf(target
, GL_TEXTURE_PRIORITY
, obj
->Priority
);
838 _mesa_TexParameteri(target
, GL_TEXTURE_WRAP_S
, obj
->WrapS
);
839 _mesa_TexParameteri(target
, GL_TEXTURE_WRAP_T
, obj
->WrapT
);
840 _mesa_TexParameteri(target
, GL_TEXTURE_WRAP_R
, obj
->WrapR
);
841 _mesa_TexParameteri(target
, GL_TEXTURE_MIN_FILTER
, obj
->MinFilter
);
842 _mesa_TexParameteri(target
, GL_TEXTURE_MAG_FILTER
, obj
->MagFilter
);
843 _mesa_TexParameterf(target
, GL_TEXTURE_MIN_LOD
, obj
->MinLod
);
844 _mesa_TexParameterf(target
, GL_TEXTURE_MAX_LOD
, obj
->MaxLod
);
845 _mesa_TexParameterf(target
, GL_TEXTURE_LOD_BIAS
, obj
->LodBias
);
846 _mesa_TexParameteri(target
, GL_TEXTURE_BASE_LEVEL
, obj
->BaseLevel
);
847 if (target
!= GL_TEXTURE_RECTANGLE_ARB
)
848 _mesa_TexParameteri(target
, GL_TEXTURE_MAX_LEVEL
, obj
->MaxLevel
);
849 if (ctx
->Extensions
.EXT_texture_filter_anisotropic
) {
850 _mesa_TexParameterf(target
, GL_TEXTURE_MAX_ANISOTROPY_EXT
,
853 if (ctx
->Extensions
.ARB_shadow_ambient
) {
854 _mesa_TexParameterf(target
, GL_TEXTURE_COMPARE_FAIL_VALUE_ARB
,
855 obj
->CompareFailValue
);
859 /* remove saved references to the texture objects */
860 for (tgt
= 0; tgt
< NUM_TEXTURE_TARGETS
; tgt
++) {
861 _mesa_reference_texobj(&texstate
->SavedTexRef
[u
][tgt
], NULL
);
865 _mesa_ActiveTextureARB(GL_TEXTURE0_ARB
+ texstate
->Texture
.CurrentUnit
);
867 _mesa_unlock_context_textures(ctx
);
872 * This function is kind of long just because we have to call a lot
873 * of device driver functions to update device driver state.
875 * XXX As it is now, most of the pop-code calls immediate-mode Mesa functions
876 * in order to restore GL state. This isn't terribly efficient but it
877 * ensures that dirty flags and any derived state gets updated correctly.
878 * We could at least check if the value to restore equals the current value
879 * and then skip the Mesa call.
882 _mesa_PopAttrib(void)
884 struct gl_attrib_node
*attr
, *next
;
885 GET_CURRENT_CONTEXT(ctx
);
886 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
888 if (ctx
->AttribStackDepth
== 0) {
889 _mesa_error( ctx
, GL_STACK_UNDERFLOW
, "glPopAttrib" );
893 ctx
->AttribStackDepth
--;
894 attr
= ctx
->AttribStack
[ctx
->AttribStackDepth
];
898 if (MESA_VERBOSE
& VERBOSE_API
) {
899 _mesa_debug(ctx
, "glPopAttrib %s\n",
900 _mesa_lookup_enum_by_nr(attr
->kind
));
903 switch (attr
->kind
) {
904 case GL_ACCUM_BUFFER_BIT
:
906 const struct gl_accum_attrib
*accum
;
907 accum
= (const struct gl_accum_attrib
*) attr
->data
;
908 _mesa_ClearAccum(accum
->ClearColor
[0],
909 accum
->ClearColor
[1],
910 accum
->ClearColor
[2],
911 accum
->ClearColor
[3]);
914 case GL_COLOR_BUFFER_BIT
:
916 const struct gl_colorbuffer_attrib
*color
;
918 color
= (const struct gl_colorbuffer_attrib
*) attr
->data
;
919 _mesa_ClearIndex((GLfloat
) color
->ClearIndex
);
920 _mesa_ClearColor(color
->ClearColor
[0],
921 color
->ClearColor
[1],
922 color
->ClearColor
[2],
923 color
->ClearColor
[3]);
924 _mesa_IndexMask(color
->IndexMask
);
925 if (!ctx
->Extensions
.EXT_draw_buffers2
) {
926 _mesa_ColorMask((GLboolean
) (color
->ColorMask
[0][0] != 0),
927 (GLboolean
) (color
->ColorMask
[0][1] != 0),
928 (GLboolean
) (color
->ColorMask
[0][2] != 0),
929 (GLboolean
) (color
->ColorMask
[0][3] != 0));
933 for (i
= 0; i
< ctx
->Const
.MaxDrawBuffers
; i
++) {
934 _mesa_ColorMaskIndexed(i
,
935 (GLboolean
) (color
->ColorMask
[i
][0] != 0),
936 (GLboolean
) (color
->ColorMask
[i
][1] != 0),
937 (GLboolean
) (color
->ColorMask
[i
][2] != 0),
938 (GLboolean
) (color
->ColorMask
[i
][3] != 0));
942 /* Need to determine if more than one color output is
943 * specified. If so, call glDrawBuffersARB, else call
944 * glDrawBuffer(). This is a subtle, but essential point
945 * since GL_FRONT (for example) is illegal for the former
946 * function, but legal for the later.
948 GLboolean multipleBuffers
= GL_FALSE
;
951 for (i
= 1; i
< ctx
->Const
.MaxDrawBuffers
; i
++) {
952 if (color
->DrawBuffer
[i
] != GL_NONE
) {
953 multipleBuffers
= GL_TRUE
;
957 /* Call the API_level functions, not _mesa_drawbuffers()
958 * since we need to do error checking on the pop'd
960 * Ex: if GL_FRONT were pushed, but we're popping with a
961 * user FBO bound, GL_FRONT will be illegal and we'll need
962 * to record that error. Per OpenGL ARB decision.
965 _mesa_DrawBuffersARB(ctx
->Const
.MaxDrawBuffers
,
968 _mesa_DrawBuffer(color
->DrawBuffer
[0]);
970 _mesa_set_enable(ctx
, GL_ALPHA_TEST
, color
->AlphaEnabled
);
971 _mesa_AlphaFunc(color
->AlphaFunc
, color
->AlphaRef
);
972 if (ctx
->Color
.BlendEnabled
!= color
->BlendEnabled
) {
973 if (ctx
->Extensions
.EXT_draw_buffers2
) {
975 for (i
= 0; i
< ctx
->Const
.MaxDrawBuffers
; i
++) {
976 _mesa_set_enablei(ctx
, GL_BLEND
, i
,
977 (color
->BlendEnabled
>> i
) & 1);
981 _mesa_set_enable(ctx
, GL_BLEND
, (color
->BlendEnabled
& 1));
984 _mesa_BlendFuncSeparateEXT(color
->BlendSrcRGB
,
988 /* This special case is because glBlendEquationSeparateEXT
989 * cannot take GL_LOGIC_OP as a parameter.
991 if ( color
->BlendEquationRGB
== color
->BlendEquationA
) {
992 _mesa_BlendEquation(color
->BlendEquationRGB
);
995 _mesa_BlendEquationSeparateEXT(color
->BlendEquationRGB
,
996 color
->BlendEquationA
);
998 _mesa_BlendColor(color
->BlendColor
[0],
999 color
->BlendColor
[1],
1000 color
->BlendColor
[2],
1001 color
->BlendColor
[3]);
1002 _mesa_LogicOp(color
->LogicOp
);
1003 _mesa_set_enable(ctx
, GL_COLOR_LOGIC_OP
,
1004 color
->ColorLogicOpEnabled
);
1005 _mesa_set_enable(ctx
, GL_INDEX_LOGIC_OP
,
1006 color
->IndexLogicOpEnabled
);
1007 _mesa_set_enable(ctx
, GL_DITHER
, color
->DitherFlag
);
1010 case GL_CURRENT_BIT
:
1011 FLUSH_CURRENT( ctx
, 0 );
1012 memcpy( &ctx
->Current
, attr
->data
,
1013 sizeof(struct gl_current_attrib
) );
1015 case GL_DEPTH_BUFFER_BIT
:
1017 const struct gl_depthbuffer_attrib
*depth
;
1018 depth
= (const struct gl_depthbuffer_attrib
*) attr
->data
;
1019 _mesa_DepthFunc(depth
->Func
);
1020 _mesa_ClearDepth(depth
->Clear
);
1021 _mesa_set_enable(ctx
, GL_DEPTH_TEST
, depth
->Test
);
1022 _mesa_DepthMask(depth
->Mask
);
1027 const struct gl_enable_attrib
*enable
;
1028 enable
= (const struct gl_enable_attrib
*) attr
->data
;
1029 pop_enable_group(ctx
, enable
);
1030 ctx
->NewState
|= _NEW_ALL
;
1034 memcpy( &ctx
->Eval
, attr
->data
, sizeof(struct gl_eval_attrib
) );
1035 ctx
->NewState
|= _NEW_EVAL
;
1039 const struct gl_fog_attrib
*fog
;
1040 fog
= (const struct gl_fog_attrib
*) attr
->data
;
1041 _mesa_set_enable(ctx
, GL_FOG
, fog
->Enabled
);
1042 _mesa_Fogfv(GL_FOG_COLOR
, fog
->Color
);
1043 _mesa_Fogf(GL_FOG_DENSITY
, fog
->Density
);
1044 _mesa_Fogf(GL_FOG_START
, fog
->Start
);
1045 _mesa_Fogf(GL_FOG_END
, fog
->End
);
1046 _mesa_Fogf(GL_FOG_INDEX
, fog
->Index
);
1047 _mesa_Fogi(GL_FOG_MODE
, fog
->Mode
);
1052 const struct gl_hint_attrib
*hint
;
1053 hint
= (const struct gl_hint_attrib
*) attr
->data
;
1054 _mesa_Hint(GL_PERSPECTIVE_CORRECTION_HINT
,
1055 hint
->PerspectiveCorrection
);
1056 _mesa_Hint(GL_POINT_SMOOTH_HINT
, hint
->PointSmooth
);
1057 _mesa_Hint(GL_LINE_SMOOTH_HINT
, hint
->LineSmooth
);
1058 _mesa_Hint(GL_POLYGON_SMOOTH_HINT
, hint
->PolygonSmooth
);
1059 _mesa_Hint(GL_FOG_HINT
, hint
->Fog
);
1060 _mesa_Hint(GL_CLIP_VOLUME_CLIPPING_HINT_EXT
,
1061 hint
->ClipVolumeClipping
);
1062 _mesa_Hint(GL_TEXTURE_COMPRESSION_HINT_ARB
,
1063 hint
->TextureCompression
);
1066 case GL_LIGHTING_BIT
:
1069 const struct gl_light_attrib
*light
;
1070 light
= (const struct gl_light_attrib
*) attr
->data
;
1071 /* lighting enable */
1072 _mesa_set_enable(ctx
, GL_LIGHTING
, light
->Enabled
);
1073 /* per-light state */
1074 if (_math_matrix_is_dirty(ctx
->ModelviewMatrixStack
.Top
))
1075 _math_matrix_analyse( ctx
->ModelviewMatrixStack
.Top
);
1077 for (i
= 0; i
< ctx
->Const
.MaxLights
; i
++) {
1078 const struct gl_light
*l
= &light
->Light
[i
];
1079 _mesa_set_enable(ctx
, GL_LIGHT0
+ i
, l
->Enabled
);
1080 _mesa_light(ctx
, i
, GL_AMBIENT
, l
->Ambient
);
1081 _mesa_light(ctx
, i
, GL_DIFFUSE
, l
->Diffuse
);
1082 _mesa_light(ctx
, i
, GL_SPECULAR
, l
->Specular
);
1083 _mesa_light(ctx
, i
, GL_POSITION
, l
->EyePosition
);
1084 _mesa_light(ctx
, i
, GL_SPOT_DIRECTION
, l
->SpotDirection
);
1086 GLfloat p
[4] = { 0 };
1087 p
[0] = l
->SpotExponent
;
1088 _mesa_light(ctx
, i
, GL_SPOT_EXPONENT
, p
);
1091 GLfloat p
[4] = { 0 };
1092 p
[0] = l
->SpotCutoff
;
1093 _mesa_light(ctx
, i
, GL_SPOT_CUTOFF
, p
);
1096 GLfloat p
[4] = { 0 };
1097 p
[0] = l
->ConstantAttenuation
;
1098 _mesa_light(ctx
, i
, GL_CONSTANT_ATTENUATION
, p
);
1101 GLfloat p
[4] = { 0 };
1102 p
[0] = l
->LinearAttenuation
;
1103 _mesa_light(ctx
, i
, GL_LINEAR_ATTENUATION
, p
);
1106 GLfloat p
[4] = { 0 };
1107 p
[0] = l
->QuadraticAttenuation
;
1108 _mesa_light(ctx
, i
, GL_QUADRATIC_ATTENUATION
, p
);
1112 _mesa_LightModelfv(GL_LIGHT_MODEL_AMBIENT
,
1113 light
->Model
.Ambient
);
1114 _mesa_LightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER
,
1115 (GLfloat
) light
->Model
.LocalViewer
);
1116 _mesa_LightModelf(GL_LIGHT_MODEL_TWO_SIDE
,
1117 (GLfloat
) light
->Model
.TwoSide
);
1118 _mesa_LightModelf(GL_LIGHT_MODEL_COLOR_CONTROL
,
1119 (GLfloat
) light
->Model
.ColorControl
);
1121 _mesa_ShadeModel(light
->ShadeModel
);
1122 /* color material */
1123 _mesa_ColorMaterial(light
->ColorMaterialFace
,
1124 light
->ColorMaterialMode
);
1125 _mesa_set_enable(ctx
, GL_COLOR_MATERIAL
,
1126 light
->ColorMaterialEnabled
);
1128 memcpy(&ctx
->Light
.Material
, &light
->Material
,
1129 sizeof(struct gl_material
));
1134 const struct gl_line_attrib
*line
;
1135 line
= (const struct gl_line_attrib
*) attr
->data
;
1136 _mesa_set_enable(ctx
, GL_LINE_SMOOTH
, line
->SmoothFlag
);
1137 _mesa_set_enable(ctx
, GL_LINE_STIPPLE
, line
->StippleFlag
);
1138 _mesa_LineStipple(line
->StippleFactor
, line
->StipplePattern
);
1139 _mesa_LineWidth(line
->Width
);
1143 memcpy( &ctx
->List
, attr
->data
, sizeof(struct gl_list_attrib
) );
1145 case GL_PIXEL_MODE_BIT
:
1146 memcpy( &ctx
->Pixel
, attr
->data
, sizeof(struct gl_pixel_attrib
) );
1147 /* XXX what other pixel state needs to be set by function calls? */
1148 _mesa_ReadBuffer(ctx
->Pixel
.ReadBuffer
);
1149 ctx
->NewState
|= _NEW_PIXEL
;
1153 const struct gl_point_attrib
*point
;
1154 point
= (const struct gl_point_attrib
*) attr
->data
;
1155 _mesa_PointSize(point
->Size
);
1156 _mesa_set_enable(ctx
, GL_POINT_SMOOTH
, point
->SmoothFlag
);
1157 if (ctx
->Extensions
.EXT_point_parameters
) {
1158 _mesa_PointParameterfv(GL_DISTANCE_ATTENUATION_EXT
,
1160 _mesa_PointParameterf(GL_POINT_SIZE_MIN_EXT
,
1162 _mesa_PointParameterf(GL_POINT_SIZE_MAX_EXT
,
1164 _mesa_PointParameterf(GL_POINT_FADE_THRESHOLD_SIZE_EXT
,
1167 if (ctx
->Extensions
.NV_point_sprite
1168 || ctx
->Extensions
.ARB_point_sprite
) {
1170 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
1171 _mesa_TexEnvi(GL_POINT_SPRITE_NV
, GL_COORD_REPLACE_NV
,
1172 (GLint
) point
->CoordReplace
[u
]);
1174 _mesa_set_enable(ctx
, GL_POINT_SPRITE_NV
,point
->PointSprite
);
1175 if (ctx
->Extensions
.NV_point_sprite
)
1176 _mesa_PointParameteri(GL_POINT_SPRITE_R_MODE_NV
,
1177 ctx
->Point
.SpriteRMode
);
1178 _mesa_PointParameterf(GL_POINT_SPRITE_COORD_ORIGIN
,
1179 (GLfloat
)ctx
->Point
.SpriteOrigin
);
1183 case GL_POLYGON_BIT
:
1185 const struct gl_polygon_attrib
*polygon
;
1186 polygon
= (const struct gl_polygon_attrib
*) attr
->data
;
1187 _mesa_CullFace(polygon
->CullFaceMode
);
1188 _mesa_FrontFace(polygon
->FrontFace
);
1189 _mesa_PolygonMode(GL_FRONT
, polygon
->FrontMode
);
1190 _mesa_PolygonMode(GL_BACK
, polygon
->BackMode
);
1191 _mesa_PolygonOffset(polygon
->OffsetFactor
,
1192 polygon
->OffsetUnits
);
1193 _mesa_set_enable(ctx
, GL_POLYGON_SMOOTH
, polygon
->SmoothFlag
);
1194 _mesa_set_enable(ctx
, GL_POLYGON_STIPPLE
, polygon
->StippleFlag
);
1195 _mesa_set_enable(ctx
, GL_CULL_FACE
, polygon
->CullFlag
);
1196 _mesa_set_enable(ctx
, GL_POLYGON_OFFSET_POINT
,
1197 polygon
->OffsetPoint
);
1198 _mesa_set_enable(ctx
, GL_POLYGON_OFFSET_LINE
,
1199 polygon
->OffsetLine
);
1200 _mesa_set_enable(ctx
, GL_POLYGON_OFFSET_FILL
,
1201 polygon
->OffsetFill
);
1204 case GL_POLYGON_STIPPLE_BIT
:
1205 memcpy( ctx
->PolygonStipple
, attr
->data
, 32*sizeof(GLuint
) );
1206 ctx
->NewState
|= _NEW_POLYGONSTIPPLE
;
1207 if (ctx
->Driver
.PolygonStipple
)
1208 ctx
->Driver
.PolygonStipple( ctx
, (const GLubyte
*) attr
->data
);
1210 case GL_SCISSOR_BIT
:
1212 const struct gl_scissor_attrib
*scissor
;
1213 scissor
= (const struct gl_scissor_attrib
*) attr
->data
;
1214 _mesa_Scissor(scissor
->X
, scissor
->Y
,
1215 scissor
->Width
, scissor
->Height
);
1216 _mesa_set_enable(ctx
, GL_SCISSOR_TEST
, scissor
->Enabled
);
1219 case GL_STENCIL_BUFFER_BIT
:
1221 const struct gl_stencil_attrib
*stencil
;
1222 stencil
= (const struct gl_stencil_attrib
*) attr
->data
;
1223 _mesa_set_enable(ctx
, GL_STENCIL_TEST
, stencil
->Enabled
);
1224 _mesa_ClearStencil(stencil
->Clear
);
1225 if (ctx
->Extensions
.EXT_stencil_two_side
) {
1226 _mesa_set_enable(ctx
, GL_STENCIL_TEST_TWO_SIDE_EXT
,
1227 stencil
->TestTwoSide
);
1228 _mesa_ActiveStencilFaceEXT(stencil
->ActiveFace
1229 ? GL_BACK
: GL_FRONT
);
1232 _mesa_StencilFuncSeparate(GL_FRONT
,
1233 stencil
->Function
[0],
1235 stencil
->ValueMask
[0]);
1236 _mesa_StencilMaskSeparate(GL_FRONT
, stencil
->WriteMask
[0]);
1237 _mesa_StencilOpSeparate(GL_FRONT
, stencil
->FailFunc
[0],
1238 stencil
->ZFailFunc
[0],
1239 stencil
->ZPassFunc
[0]);
1241 _mesa_StencilFuncSeparate(GL_BACK
,
1242 stencil
->Function
[1],
1244 stencil
->ValueMask
[1]);
1245 _mesa_StencilMaskSeparate(GL_BACK
, stencil
->WriteMask
[1]);
1246 _mesa_StencilOpSeparate(GL_BACK
, stencil
->FailFunc
[1],
1247 stencil
->ZFailFunc
[1],
1248 stencil
->ZPassFunc
[1]);
1251 case GL_TRANSFORM_BIT
:
1254 const struct gl_transform_attrib
*xform
;
1255 xform
= (const struct gl_transform_attrib
*) attr
->data
;
1256 _mesa_MatrixMode(xform
->MatrixMode
);
1257 if (_math_matrix_is_dirty(ctx
->ProjectionMatrixStack
.Top
))
1258 _math_matrix_analyse( ctx
->ProjectionMatrixStack
.Top
);
1260 /* restore clip planes */
1261 for (i
= 0; i
< MAX_CLIP_PLANES
; i
++) {
1262 const GLuint mask
= 1 << i
;
1263 const GLfloat
*eyePlane
= xform
->EyeUserPlane
[i
];
1264 COPY_4V(ctx
->Transform
.EyeUserPlane
[i
], eyePlane
);
1265 if (xform
->ClipPlanesEnabled
& mask
) {
1266 _mesa_set_enable(ctx
, GL_CLIP_PLANE0
+ i
, GL_TRUE
);
1269 _mesa_set_enable(ctx
, GL_CLIP_PLANE0
+ i
, GL_FALSE
);
1271 if (ctx
->Driver
.ClipPlane
)
1272 ctx
->Driver
.ClipPlane( ctx
, GL_CLIP_PLANE0
+ i
, eyePlane
);
1275 /* normalize/rescale */
1276 if (xform
->Normalize
!= ctx
->Transform
.Normalize
)
1277 _mesa_set_enable(ctx
, GL_NORMALIZE
,ctx
->Transform
.Normalize
);
1278 if (xform
->RescaleNormals
!= ctx
->Transform
.RescaleNormals
)
1279 _mesa_set_enable(ctx
, GL_RESCALE_NORMAL_EXT
,
1280 ctx
->Transform
.RescaleNormals
);
1281 if (xform
->DepthClamp
!= ctx
->Transform
.DepthClamp
)
1282 _mesa_set_enable(ctx
, GL_DEPTH_CLAMP
,
1283 ctx
->Transform
.DepthClamp
);
1286 case GL_TEXTURE_BIT
:
1287 /* Take care of texture object reference counters */
1289 struct texture_state
*texstate
1290 = (struct texture_state
*) attr
->data
;
1291 pop_texture_group(ctx
, texstate
);
1292 ctx
->NewState
|= _NEW_TEXTURE
;
1295 case GL_VIEWPORT_BIT
:
1297 const struct gl_viewport_attrib
*vp
;
1298 vp
= (const struct gl_viewport_attrib
*) attr
->data
;
1299 _mesa_Viewport(vp
->X
, vp
->Y
, vp
->Width
, vp
->Height
);
1300 _mesa_DepthRange(vp
->Near
, vp
->Far
);
1303 case GL_MULTISAMPLE_BIT_ARB
:
1305 const struct gl_multisample_attrib
*ms
;
1306 ms
= (const struct gl_multisample_attrib
*) attr
->data
;
1307 _mesa_SampleCoverageARB(ms
->SampleCoverageValue
,
1308 ms
->SampleCoverageInvert
);
1313 _mesa_problem( ctx
, "Bad attrib flag in PopAttrib");
1326 * Helper for incrementing/decrementing vertex buffer object reference
1327 * counts when pushing/popping the GL_CLIENT_VERTEX_ARRAY_BIT attribute group.
1330 adjust_buffer_object_ref_counts(struct gl_array_object
*arrayObj
, GLint step
)
1334 arrayObj
->Vertex
.BufferObj
->RefCount
+= step
;
1335 arrayObj
->Weight
.BufferObj
->RefCount
+= step
;
1336 arrayObj
->Normal
.BufferObj
->RefCount
+= step
;
1337 arrayObj
->Color
.BufferObj
->RefCount
+= step
;
1338 arrayObj
->SecondaryColor
.BufferObj
->RefCount
+= step
;
1339 arrayObj
->FogCoord
.BufferObj
->RefCount
+= step
;
1340 arrayObj
->Index
.BufferObj
->RefCount
+= step
;
1341 arrayObj
->EdgeFlag
.BufferObj
->RefCount
+= step
;
1342 for (i
= 0; i
< Elements(arrayObj
->TexCoord
); i
++)
1343 arrayObj
->TexCoord
[i
].BufferObj
->RefCount
+= step
;
1344 for (i
= 0; i
< Elements(arrayObj
->VertexAttrib
); i
++)
1345 arrayObj
->VertexAttrib
[i
].BufferObj
->RefCount
+= step
;
1350 * Copy gl_pixelstore_attrib from src to dst, updating buffer
1354 copy_pixelstore(GLcontext
*ctx
,
1355 struct gl_pixelstore_attrib
*dst
,
1356 const struct gl_pixelstore_attrib
*src
)
1358 dst
->Alignment
= src
->Alignment
;
1359 dst
->RowLength
= src
->RowLength
;
1360 dst
->SkipPixels
= src
->SkipPixels
;
1361 dst
->SkipRows
= src
->SkipRows
;
1362 dst
->ImageHeight
= src
->ImageHeight
;
1363 dst
->SkipImages
= src
->SkipImages
;
1364 dst
->SwapBytes
= src
->SwapBytes
;
1365 dst
->LsbFirst
= src
->LsbFirst
;
1366 dst
->ClientStorage
= src
->ClientStorage
;
1367 dst
->Invert
= src
->Invert
;
1368 _mesa_reference_buffer_object(ctx
, &dst
->BufferObj
, src
->BufferObj
);
1372 #define GL_CLIENT_PACK_BIT (1<<20)
1373 #define GL_CLIENT_UNPACK_BIT (1<<21)
1377 _mesa_PushClientAttrib(GLbitfield mask
)
1379 struct gl_attrib_node
*head
;
1381 GET_CURRENT_CONTEXT(ctx
);
1382 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1384 if (ctx
->ClientAttribStackDepth
>= MAX_CLIENT_ATTRIB_STACK_DEPTH
) {
1385 _mesa_error( ctx
, GL_STACK_OVERFLOW
, "glPushClientAttrib" );
1389 /* Build linked list of attribute nodes which save all attribute
1390 * groups specified by the mask.
1394 if (mask
& GL_CLIENT_PIXEL_STORE_BIT
) {
1395 struct gl_pixelstore_attrib
*attr
;
1396 /* packing attribs */
1397 attr
= CALLOC_STRUCT( gl_pixelstore_attrib
);
1398 copy_pixelstore(ctx
, attr
, &ctx
->Pack
);
1399 save_attrib_data(&head
, GL_CLIENT_PACK_BIT
, attr
);
1400 /* unpacking attribs */
1401 attr
= CALLOC_STRUCT( gl_pixelstore_attrib
);
1402 copy_pixelstore(ctx
, attr
, &ctx
->Unpack
);
1403 save_attrib_data(&head
, GL_CLIENT_UNPACK_BIT
, attr
);
1406 if (mask
& GL_CLIENT_VERTEX_ARRAY_BIT
) {
1407 struct gl_array_attrib
*attr
;
1408 struct gl_array_object
*obj
;
1410 attr
= MALLOC_STRUCT( gl_array_attrib
);
1411 obj
= MALLOC_STRUCT( gl_array_object
);
1413 #if FEATURE_ARB_vertex_buffer_object
1414 /* increment ref counts since we're copying pointers to these objects */
1415 ctx
->Array
.ArrayBufferObj
->RefCount
++;
1416 ctx
->Array
.ElementArrayBufferObj
->RefCount
++;
1419 memcpy( attr
, &ctx
->Array
, sizeof(struct gl_array_attrib
) );
1420 memcpy( obj
, ctx
->Array
.ArrayObj
, sizeof(struct gl_array_object
) );
1422 attr
->ArrayObj
= obj
;
1424 save_attrib_data(&head
, GL_CLIENT_VERTEX_ARRAY_BIT
, attr
);
1426 /* bump reference counts on buffer objects */
1427 adjust_buffer_object_ref_counts(ctx
->Array
.ArrayObj
, 1);
1430 ctx
->ClientAttribStack
[ctx
->ClientAttribStackDepth
] = head
;
1431 ctx
->ClientAttribStackDepth
++;
1438 _mesa_PopClientAttrib(void)
1440 struct gl_attrib_node
*node
, *next
;
1442 GET_CURRENT_CONTEXT(ctx
);
1443 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
1445 if (ctx
->ClientAttribStackDepth
== 0) {
1446 _mesa_error( ctx
, GL_STACK_UNDERFLOW
, "glPopClientAttrib" );
1450 ctx
->ClientAttribStackDepth
--;
1451 node
= ctx
->ClientAttribStack
[ctx
->ClientAttribStackDepth
];
1454 switch (node
->kind
) {
1455 case GL_CLIENT_PACK_BIT
:
1457 struct gl_pixelstore_attrib
*store
=
1458 (struct gl_pixelstore_attrib
*) node
->data
;
1459 copy_pixelstore(ctx
, &ctx
->Pack
, store
);
1460 _mesa_reference_buffer_object(ctx
, &store
->BufferObj
, NULL
);
1462 ctx
->NewState
|= _NEW_PACKUNPACK
;
1464 case GL_CLIENT_UNPACK_BIT
:
1466 struct gl_pixelstore_attrib
*store
=
1467 (struct gl_pixelstore_attrib
*) node
->data
;
1468 copy_pixelstore(ctx
, &ctx
->Unpack
, store
);
1469 _mesa_reference_buffer_object(ctx
, &store
->BufferObj
, NULL
);
1471 ctx
->NewState
|= _NEW_PACKUNPACK
;
1473 case GL_CLIENT_VERTEX_ARRAY_BIT
: {
1474 struct gl_array_attrib
* data
=
1475 (struct gl_array_attrib
*) node
->data
;
1477 adjust_buffer_object_ref_counts(ctx
->Array
.ArrayObj
, -1);
1479 ctx
->Array
.ActiveTexture
= data
->ActiveTexture
;
1480 if (data
->LockCount
!= 0)
1481 _mesa_LockArraysEXT(data
->LockFirst
, data
->LockCount
);
1482 else if (ctx
->Array
.LockCount
)
1483 _mesa_UnlockArraysEXT();
1485 _mesa_BindVertexArrayAPPLE( data
->ArrayObj
->Name
);
1487 #if FEATURE_ARB_vertex_buffer_object
1488 _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB
,
1489 data
->ArrayBufferObj
->Name
);
1490 _mesa_BindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB
,
1491 data
->ElementArrayBufferObj
->Name
);
1494 memcpy( ctx
->Array
.ArrayObj
, data
->ArrayObj
,
1495 sizeof( struct gl_array_object
) );
1497 FREE( data
->ArrayObj
);
1499 /* FIXME: Should some bits in ctx->Array->NewState also be set
1500 * FIXME: here? It seems like it should be set to inclusive-or
1501 * FIXME: of the old ArrayObj->_Enabled and the new _Enabled.
1504 ctx
->NewState
|= _NEW_ARRAY
;
1508 _mesa_problem( ctx
, "Bad attrib flag in PopClientAttrib");
1521 _mesa_init_attrib_dispatch(struct _glapi_table
*disp
)
1523 SET_PopAttrib(disp
, _mesa_PopAttrib
);
1524 SET_PushAttrib(disp
, _mesa_PushAttrib
);
1525 SET_PopClientAttrib(disp
, _mesa_PopClientAttrib
);
1526 SET_PushClientAttrib(disp
, _mesa_PushClientAttrib
);
1530 #endif /* FEATURE_attrib_stack */
1534 * Free any attribute state data that might be attached to the context.
1537 _mesa_free_attrib_data(GLcontext
*ctx
)
1539 while (ctx
->AttribStackDepth
> 0) {
1540 struct gl_attrib_node
*attr
, *next
;
1542 ctx
->AttribStackDepth
--;
1543 attr
= ctx
->AttribStack
[ctx
->AttribStackDepth
];
1546 if (attr
->kind
== GL_TEXTURE_BIT
) {
1547 struct texture_state
*texstate
= (struct texture_state
*)attr
->data
;
1549 /* clear references to the saved texture objects */
1550 for (u
= 0; u
< ctx
->Const
.MaxTextureUnits
; u
++) {
1551 for (tgt
= 0; tgt
< NUM_TEXTURE_TARGETS
; tgt
++) {
1552 _mesa_reference_texobj(&texstate
->SavedTexRef
[u
][tgt
], NULL
);
1557 /* any other chunks of state that requires special handling? */
1569 void _mesa_init_attrib( GLcontext
*ctx
)
1571 /* Renderer and client attribute stacks */
1572 ctx
->AttribStackDepth
= 0;
1573 ctx
->ClientAttribStackDepth
= 0;