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.
29 #include "bufferobj.h"
36 #include "mfeatures.h"
40 #include "main/dispatch.h"
43 /** Used to do error checking for GL_EXT_vertex_array_bgra */
47 /** Used to indicate which GL datatypes are accepted by each of the
48 * glVertex/Color/Attrib/EtcPointer() functions.
52 #define UNSIGNED_BYTE_BIT 0x4
54 #define UNSIGNED_SHORT_BIT 0x10
56 #define UNSIGNED_INT_BIT 0x40
58 #define FLOAT_BIT 0x100
59 #define DOUBLE_BIT 0x200
60 #define FIXED_ES_BIT 0x400
61 #define FIXED_GL_BIT 0x800
62 #define UNSIGNED_INT_2_10_10_10_REV_BIT 0x1000
63 #define INT_2_10_10_10_REV_BIT 0x2000
66 /** Convert GL datatype enum into a <type>_BIT value seen above */
68 type_to_bit(const struct gl_context
*ctx
, GLenum type
)
75 case GL_UNSIGNED_BYTE
:
76 return UNSIGNED_BYTE_BIT
;
79 case GL_UNSIGNED_SHORT
:
80 return UNSIGNED_SHORT_BIT
;
84 return UNSIGNED_INT_BIT
;
86 if (ctx
->Extensions
.ARB_half_float_vertex
)
95 return _mesa_is_desktop_gl(ctx
) ? FIXED_GL_BIT
: FIXED_ES_BIT
;
96 case GL_UNSIGNED_INT_2_10_10_10_REV
:
97 return UNSIGNED_INT_2_10_10_10_REV_BIT
;
98 case GL_INT_2_10_10_10_REV
:
99 return INT_2_10_10_10_REV_BIT
;
107 * Do error checking and update state for glVertex/Color/TexCoord/...Pointer
110 * \param func name of calling function used for error reporting
111 * \param attrib the attribute array index to update
112 * \param legalTypes bitmask of *_BIT above indicating legal datatypes
113 * \param sizeMin min allowable size value
114 * \param sizeMax max allowable size value (may also be BGRA_OR_4)
115 * \param size components per element (1, 2, 3 or 4)
116 * \param type datatype of each component (GL_FLOAT, GL_INT, etc)
117 * \param stride stride between elements, in elements
118 * \param normalized are integer types converted to floats in [-1, 1]?
119 * \param integer integer-valued values (will not be normalized to [-1,1])
120 * \param ptr the address (or offset inside VBO) of the array data
123 update_array(struct gl_context
*ctx
,
125 GLuint attrib
, GLbitfield legalTypesMask
,
126 GLint sizeMin
, GLint sizeMax
,
127 GLint size
, GLenum type
, GLsizei stride
,
128 GLboolean normalized
, GLboolean integer
,
131 struct gl_client_array
*array
;
134 GLenum format
= GL_RGBA
;
136 /* Page 407 (page 423 of the PDF) of the OpenGL 3.0 spec says:
138 * "Client vertex arrays - all vertex array attribute pointers must
139 * refer to buffer objects (section 2.9.2). The default vertex array
140 * object (the name zero) is also deprecated. Calling
141 * VertexAttribPointer when no buffer object or no vertex array object
142 * is bound will generate an INVALID_OPERATION error..."
144 * The check for VBOs is handled below.
146 if (ctx
->API
== API_OPENGL_CORE
147 && (ctx
->Array
.ArrayObj
== ctx
->Array
.DefaultArrayObj
)) {
148 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(no array object bound)",
153 if (_mesa_is_gles(ctx
)) {
154 /* Once Mesa gets support for GL_OES_vertex_half_float this mask will
155 * change. Adding support for this extension isn't quite as trivial as
156 * we'd like because ES uses a different enum value for GL_HALF_FLOAT.
158 legalTypesMask
&= ~(FIXED_GL_BIT
| HALF_BIT
| DOUBLE_BIT
);
160 /* GL_INT and GL_UNSIGNED_INT data is not allowed in OpenGL ES until
161 * 3.0. The 2_10_10_10 types are added in OpenGL ES 3.0 or
162 * GL_OES_vertex_type_10_10_10_2.
164 if (ctx
->Version
< 30) {
165 legalTypesMask
&= ~(UNSIGNED_INT_BIT
167 | UNSIGNED_INT_2_10_10_10_REV_BIT
168 | INT_2_10_10_10_REV_BIT
);
171 /* BGRA ordering is not supported in ES contexts.
173 if (sizeMax
== BGRA_OR_4
)
176 legalTypesMask
&= ~FIXED_ES_BIT
;
178 if (!ctx
->Extensions
.ARB_ES2_compatibility
)
179 legalTypesMask
&= ~FIXED_GL_BIT
;
181 if (!ctx
->Extensions
.ARB_vertex_type_2_10_10_10_rev
)
182 legalTypesMask
&= ~(UNSIGNED_INT_2_10_10_10_REV_BIT
|
183 INT_2_10_10_10_REV_BIT
);
186 typeBit
= type_to_bit(ctx
, type
);
187 if (typeBit
== 0x0 || (typeBit
& legalTypesMask
) == 0x0) {
188 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(type = %s)",
189 func
, _mesa_lookup_enum_by_nr(type
));
193 /* Do size parameter checking.
194 * If sizeMax = BGRA_OR_4 it means that size = GL_BGRA is legal and
195 * must be handled specially.
197 if (ctx
->Extensions
.EXT_vertex_array_bgra
&&
198 sizeMax
== BGRA_OR_4
&&
200 GLboolean bgra_error
= GL_FALSE
;
202 if (ctx
->Extensions
.ARB_vertex_type_2_10_10_10_rev
) {
203 if (type
!= GL_UNSIGNED_INT_2_10_10_10_REV
&&
204 type
!= GL_INT_2_10_10_10_REV
&&
205 type
!= GL_UNSIGNED_BYTE
)
206 bgra_error
= GL_TRUE
;
207 } else if (type
!= GL_UNSIGNED_BYTE
)
208 bgra_error
= GL_TRUE
;
211 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(GL_BGRA/GLubyte)", func
);
217 else if (size
< sizeMin
|| size
> sizeMax
|| size
> 4) {
218 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(size=%d)", func
, size
);
222 if (ctx
->Extensions
.ARB_vertex_type_2_10_10_10_rev
&&
223 (type
== GL_UNSIGNED_INT_2_10_10_10_REV
||
224 type
== GL_INT_2_10_10_10_REV
) && size
!= 4) {
225 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(size=%d)", func
, size
);
232 _mesa_error( ctx
, GL_INVALID_VALUE
, "%s(stride=%d)", func
, stride
);
236 /* Page 29 (page 44 of the PDF) of the OpenGL 3.3 spec says:
238 * "An INVALID_OPERATION error is generated under any of the following
243 * * any of the *Pointer commands specifying the location and
244 * organization of vertex array data are called while zero is bound
245 * to the ARRAY_BUFFER buffer object binding point (see section
246 * 2.9.6), and the pointer argument is not NULL."
248 if (ptr
!= NULL
&& ctx
->Array
.ArrayObj
->ARBsemantics
&&
249 !_mesa_is_bufferobj(ctx
->Array
.ArrayBufferObj
)) {
250 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(non-VBO array)", func
);
254 elementSize
= _mesa_sizeof_type(type
) * size
;
256 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[attrib
];
259 array
->Format
= format
;
260 array
->Stride
= stride
;
261 array
->StrideB
= stride
? stride
: elementSize
;
262 array
->Normalized
= normalized
;
263 array
->Integer
= integer
;
264 array
->Ptr
= (const GLubyte
*) ptr
;
265 array
->_ElementSize
= elementSize
;
267 _mesa_reference_buffer_object(ctx
, &array
->BufferObj
,
268 ctx
->Array
.ArrayBufferObj
);
270 ctx
->NewState
|= _NEW_ARRAY
;
271 ctx
->Array
.ArrayObj
->NewArrays
|= VERT_BIT(attrib
);
276 _mesa_VertexPointer(GLint size
, GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
278 GET_CURRENT_CONTEXT(ctx
);
279 GLbitfield legalTypes
= (ctx
->API
== API_OPENGLES
)
280 ? (BYTE_BIT
| SHORT_BIT
| FLOAT_BIT
| FIXED_ES_BIT
)
281 : (SHORT_BIT
| INT_BIT
| FLOAT_BIT
|
282 DOUBLE_BIT
| HALF_BIT
|
283 UNSIGNED_INT_2_10_10_10_REV_BIT
|
284 INT_2_10_10_10_REV_BIT
);
285 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
287 update_array(ctx
, "glVertexPointer", VERT_ATTRIB_POS
,
289 size
, type
, stride
, GL_FALSE
, GL_FALSE
, ptr
);
294 _mesa_NormalPointer(GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
296 GET_CURRENT_CONTEXT(ctx
);
297 const GLbitfield legalTypes
= (ctx
->API
== API_OPENGLES
)
298 ? (BYTE_BIT
| SHORT_BIT
| FLOAT_BIT
| FIXED_ES_BIT
)
299 : (BYTE_BIT
| SHORT_BIT
| INT_BIT
|
300 HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
|
301 UNSIGNED_INT_2_10_10_10_REV_BIT
|
302 INT_2_10_10_10_REV_BIT
);
303 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
305 update_array(ctx
, "glNormalPointer", VERT_ATTRIB_NORMAL
,
307 3, type
, stride
, GL_TRUE
, GL_FALSE
, ptr
);
312 _mesa_ColorPointer(GLint size
, GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
314 GET_CURRENT_CONTEXT(ctx
);
315 const GLbitfield legalTypes
= (ctx
->API
== API_OPENGLES
)
316 ? (UNSIGNED_BYTE_BIT
| HALF_BIT
| FLOAT_BIT
| FIXED_ES_BIT
)
317 : (BYTE_BIT
| UNSIGNED_BYTE_BIT
|
318 SHORT_BIT
| UNSIGNED_SHORT_BIT
|
319 INT_BIT
| UNSIGNED_INT_BIT
|
320 HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
|
321 UNSIGNED_INT_2_10_10_10_REV_BIT
|
322 INT_2_10_10_10_REV_BIT
);
323 const GLint sizeMin
= (ctx
->API
== API_OPENGLES
) ? 4 : 3;
324 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
326 update_array(ctx
, "glColorPointer", VERT_ATTRIB_COLOR0
,
327 legalTypes
, sizeMin
, BGRA_OR_4
,
328 size
, type
, stride
, GL_TRUE
, GL_FALSE
, ptr
);
333 _mesa_FogCoordPointer(GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
335 const GLbitfield legalTypes
= (HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
);
336 GET_CURRENT_CONTEXT(ctx
);
337 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
339 update_array(ctx
, "glFogCoordPointer", VERT_ATTRIB_FOG
,
341 1, type
, stride
, GL_FALSE
, GL_FALSE
, ptr
);
346 _mesa_IndexPointer(GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
348 const GLbitfield legalTypes
= (UNSIGNED_BYTE_BIT
| SHORT_BIT
| INT_BIT
|
349 FLOAT_BIT
| DOUBLE_BIT
);
350 GET_CURRENT_CONTEXT(ctx
);
351 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
353 update_array(ctx
, "glIndexPointer", VERT_ATTRIB_COLOR_INDEX
,
355 1, type
, stride
, GL_FALSE
, GL_FALSE
, ptr
);
360 _mesa_SecondaryColorPointer(GLint size
, GLenum type
,
361 GLsizei stride
, const GLvoid
*ptr
)
363 const GLbitfield legalTypes
= (BYTE_BIT
| UNSIGNED_BYTE_BIT
|
364 SHORT_BIT
| UNSIGNED_SHORT_BIT
|
365 INT_BIT
| UNSIGNED_INT_BIT
|
366 HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
|
367 UNSIGNED_INT_2_10_10_10_REV_BIT
|
368 INT_2_10_10_10_REV_BIT
);
369 GET_CURRENT_CONTEXT(ctx
);
370 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
372 update_array(ctx
, "glSecondaryColorPointer", VERT_ATTRIB_COLOR1
,
373 legalTypes
, 3, BGRA_OR_4
,
374 size
, type
, stride
, GL_TRUE
, GL_FALSE
, ptr
);
379 _mesa_TexCoordPointer(GLint size
, GLenum type
, GLsizei stride
,
382 GET_CURRENT_CONTEXT(ctx
);
383 GLbitfield legalTypes
= (ctx
->API
== API_OPENGLES
)
384 ? (BYTE_BIT
| SHORT_BIT
| FLOAT_BIT
| FIXED_ES_BIT
)
385 : (SHORT_BIT
| INT_BIT
|
386 HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
|
387 UNSIGNED_INT_2_10_10_10_REV_BIT
|
388 INT_2_10_10_10_REV_BIT
);
389 const GLint sizeMin
= (ctx
->API
== API_OPENGLES
) ? 2 : 1;
390 const GLuint unit
= ctx
->Array
.ActiveTexture
;
391 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
393 update_array(ctx
, "glTexCoordPointer", VERT_ATTRIB_TEX(unit
),
394 legalTypes
, sizeMin
, 4,
395 size
, type
, stride
, GL_FALSE
, GL_FALSE
,
401 _mesa_EdgeFlagPointer(GLsizei stride
, const GLvoid
*ptr
)
403 const GLbitfield legalTypes
= UNSIGNED_BYTE_BIT
;
404 /* see table 2.4 edits in GL_EXT_gpu_shader4 spec: */
405 const GLboolean integer
= GL_TRUE
;
406 GET_CURRENT_CONTEXT(ctx
);
407 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
409 update_array(ctx
, "glEdgeFlagPointer", VERT_ATTRIB_EDGEFLAG
,
411 1, GL_UNSIGNED_BYTE
, stride
, GL_FALSE
, integer
, ptr
);
416 _mesa_PointSizePointerOES(GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
418 const GLbitfield legalTypes
= (FLOAT_BIT
| FIXED_ES_BIT
);
419 GET_CURRENT_CONTEXT(ctx
);
420 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
422 if (ctx
->API
!= API_OPENGLES
) {
423 _mesa_error(ctx
, GL_INVALID_OPERATION
,
424 "glPointSizePointer(ES 1.x only)");
428 update_array(ctx
, "glPointSizePointer", VERT_ATTRIB_POINT_SIZE
,
430 1, type
, stride
, GL_FALSE
, GL_FALSE
, ptr
);
435 * Set a generic vertex attribute array.
436 * Note that these arrays DO NOT alias the conventional GL vertex arrays
437 * (position, normal, color, fog, texcoord, etc).
440 _mesa_VertexAttribPointer(GLuint index
, GLint size
, GLenum type
,
441 GLboolean normalized
,
442 GLsizei stride
, const GLvoid
*ptr
)
444 const GLbitfield legalTypes
= (BYTE_BIT
| UNSIGNED_BYTE_BIT
|
445 SHORT_BIT
| UNSIGNED_SHORT_BIT
|
446 INT_BIT
| UNSIGNED_INT_BIT
|
447 HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
|
448 FIXED_ES_BIT
| FIXED_GL_BIT
|
449 UNSIGNED_INT_2_10_10_10_REV_BIT
|
450 INT_2_10_10_10_REV_BIT
);
451 GET_CURRENT_CONTEXT(ctx
);
452 ASSERT_OUTSIDE_BEGIN_END(ctx
);
454 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
455 _mesa_error(ctx
, GL_INVALID_VALUE
, "glVertexAttribPointerARB(index)");
459 update_array(ctx
, "glVertexAttribPointer", VERT_ATTRIB_GENERIC(index
),
460 legalTypes
, 1, BGRA_OR_4
,
461 size
, type
, stride
, normalized
, GL_FALSE
, ptr
);
466 * GL_EXT_gpu_shader4 / GL 3.0.
467 * Set an integer-valued vertex attribute array.
468 * Note that these arrays DO NOT alias the conventional GL vertex arrays
469 * (position, normal, color, fog, texcoord, etc).
472 _mesa_VertexAttribIPointer(GLuint index
, GLint size
, GLenum type
,
473 GLsizei stride
, const GLvoid
*ptr
)
475 const GLbitfield legalTypes
= (BYTE_BIT
| UNSIGNED_BYTE_BIT
|
476 SHORT_BIT
| UNSIGNED_SHORT_BIT
|
477 INT_BIT
| UNSIGNED_INT_BIT
);
478 const GLboolean normalized
= GL_FALSE
;
479 const GLboolean integer
= GL_TRUE
;
480 GET_CURRENT_CONTEXT(ctx
);
481 ASSERT_OUTSIDE_BEGIN_END(ctx
);
483 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
484 _mesa_error(ctx
, GL_INVALID_VALUE
, "glVertexAttribIPointer(index)");
488 update_array(ctx
, "glVertexAttribIPointer", VERT_ATTRIB_GENERIC(index
),
490 size
, type
, stride
, normalized
, integer
, ptr
);
496 _mesa_EnableVertexAttribArray(GLuint index
)
498 struct gl_array_object
*arrayObj
;
499 GET_CURRENT_CONTEXT(ctx
);
500 ASSERT_OUTSIDE_BEGIN_END(ctx
);
502 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
503 _mesa_error(ctx
, GL_INVALID_VALUE
,
504 "glEnableVertexAttribArrayARB(index)");
508 arrayObj
= ctx
->Array
.ArrayObj
;
510 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(arrayObj
->VertexAttrib
));
512 if (!arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
) {
513 /* was disabled, now being enabled */
514 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
515 arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
= GL_TRUE
;
516 arrayObj
->_Enabled
|= VERT_BIT_GENERIC(index
);
517 arrayObj
->NewArrays
|= VERT_BIT_GENERIC(index
);
523 _mesa_DisableVertexAttribArray(GLuint index
)
525 struct gl_array_object
*arrayObj
;
526 GET_CURRENT_CONTEXT(ctx
);
527 ASSERT_OUTSIDE_BEGIN_END(ctx
);
529 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
530 _mesa_error(ctx
, GL_INVALID_VALUE
,
531 "glDisableVertexAttribArrayARB(index)");
535 arrayObj
= ctx
->Array
.ArrayObj
;
537 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(arrayObj
->VertexAttrib
));
539 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
) {
540 /* was enabled, now being disabled */
541 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
542 arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
= GL_FALSE
;
543 arrayObj
->_Enabled
&= ~VERT_BIT_GENERIC(index
);
544 arrayObj
->NewArrays
|= VERT_BIT_GENERIC(index
);
550 * Return info for a vertex attribute array (no alias with legacy
551 * vertex attributes (pos, normal, color, etc)). This function does
552 * not handle the 4-element GL_CURRENT_VERTEX_ATTRIB_ARB query.
555 get_vertex_array_attrib(struct gl_context
*ctx
, GLuint index
, GLenum pname
,
558 const struct gl_client_array
*array
;
560 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
561 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(index=%u)", caller
, index
);
565 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
567 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)];
570 case GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB
:
571 return array
->Enabled
;
572 case GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB
:
574 case GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB
:
575 return array
->Stride
;
576 case GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB
:
578 case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB
:
579 return array
->Normalized
;
580 case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING_ARB
:
581 return array
->BufferObj
->Name
;
582 case GL_VERTEX_ATTRIB_ARRAY_INTEGER
:
583 if ((_mesa_is_desktop_gl(ctx
)
584 && (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
))
585 || _mesa_is_gles3(ctx
)) {
586 return array
->Integer
;
589 case GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ARB
:
590 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_instanced_arrays
)
591 || _mesa_is_gles3(ctx
)) {
592 return array
->InstanceDivisor
;
600 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", caller
, pname
);
605 static const GLfloat
*
606 get_current_attrib(struct gl_context
*ctx
, GLuint index
, const char *function
)
609 /* In OpenGL 3.1 attribute 0 becomes non-magic, just like in OpenGL ES
610 * 2.0. Note that we cannot just check for API_OPENGL_CORE here because
611 * that will erroneously allow this usage in a 3.0 forward-compatible
614 if ((ctx
->API
!= API_OPENGL_CORE
|| ctx
->Version
< 31)
615 && ctx
->API
!= API_OPENGLES2
) {
616 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(index==0)", function
);
620 else if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
621 _mesa_error(ctx
, GL_INVALID_VALUE
,
622 "%s(index>=GL_MAX_VERTEX_ATTRIBS)", function
);
626 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
628 FLUSH_CURRENT(ctx
, 0);
629 return ctx
->Current
.Attrib
[VERT_ATTRIB_GENERIC(index
)];
633 _mesa_GetVertexAttribfv(GLuint index
, GLenum pname
, GLfloat
*params
)
635 GET_CURRENT_CONTEXT(ctx
);
636 ASSERT_OUTSIDE_BEGIN_END(ctx
);
638 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
639 const GLfloat
*v
= get_current_attrib(ctx
, index
, "glGetVertexAttribfv");
645 params
[0] = (GLfloat
) get_vertex_array_attrib(ctx
, index
, pname
,
646 "glGetVertexAttribfv");
652 _mesa_GetVertexAttribdv(GLuint index
, GLenum pname
, GLdouble
*params
)
654 GET_CURRENT_CONTEXT(ctx
);
655 ASSERT_OUTSIDE_BEGIN_END(ctx
);
657 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
658 const GLfloat
*v
= get_current_attrib(ctx
, index
, "glGetVertexAttribdv");
660 params
[0] = (GLdouble
) v
[0];
661 params
[1] = (GLdouble
) v
[1];
662 params
[2] = (GLdouble
) v
[2];
663 params
[3] = (GLdouble
) v
[3];
667 params
[0] = (GLdouble
) get_vertex_array_attrib(ctx
, index
, pname
,
668 "glGetVertexAttribdv");
674 _mesa_GetVertexAttribiv(GLuint index
, GLenum pname
, GLint
*params
)
676 GET_CURRENT_CONTEXT(ctx
);
677 ASSERT_OUTSIDE_BEGIN_END(ctx
);
679 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
680 const GLfloat
*v
= get_current_attrib(ctx
, index
, "glGetVertexAttribiv");
682 /* XXX should floats in[0,1] be scaled to full int range? */
683 params
[0] = (GLint
) v
[0];
684 params
[1] = (GLint
) v
[1];
685 params
[2] = (GLint
) v
[2];
686 params
[3] = (GLint
) v
[3];
690 params
[0] = (GLint
) get_vertex_array_attrib(ctx
, index
, pname
,
691 "glGetVertexAttribiv");
698 _mesa_GetVertexAttribIiv(GLuint index
, GLenum pname
, GLint
*params
)
700 GET_CURRENT_CONTEXT(ctx
);
701 ASSERT_OUTSIDE_BEGIN_END(ctx
);
703 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
704 const GLint
*v
= (const GLint
*)
705 get_current_attrib(ctx
, index
, "glGetVertexAttribIiv");
711 params
[0] = (GLint
) get_vertex_array_attrib(ctx
, index
, pname
,
712 "glGetVertexAttribIiv");
719 _mesa_GetVertexAttribIuiv(GLuint index
, GLenum pname
, GLuint
*params
)
721 GET_CURRENT_CONTEXT(ctx
);
722 ASSERT_OUTSIDE_BEGIN_END(ctx
);
724 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
725 const GLuint
*v
= (const GLuint
*)
726 get_current_attrib(ctx
, index
, "glGetVertexAttribIuiv");
732 params
[0] = get_vertex_array_attrib(ctx
, index
, pname
,
733 "glGetVertexAttribIuiv");
739 _mesa_GetVertexAttribPointerv(GLuint index
, GLenum pname
, GLvoid
**pointer
)
741 GET_CURRENT_CONTEXT(ctx
);
742 ASSERT_OUTSIDE_BEGIN_END(ctx
);
744 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
745 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetVertexAttribPointerARB(index)");
749 if (pname
!= GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB
) {
750 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetVertexAttribPointerARB(pname)");
754 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
756 *pointer
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Ptr
;
761 _mesa_VertexPointerEXT(GLint size
, GLenum type
, GLsizei stride
,
762 GLsizei count
, const GLvoid
*ptr
)
765 _mesa_VertexPointer(size
, type
, stride
, ptr
);
770 _mesa_NormalPointerEXT(GLenum type
, GLsizei stride
, GLsizei count
,
774 _mesa_NormalPointer(type
, stride
, ptr
);
779 _mesa_ColorPointerEXT(GLint size
, GLenum type
, GLsizei stride
, GLsizei count
,
783 _mesa_ColorPointer(size
, type
, stride
, ptr
);
788 _mesa_IndexPointerEXT(GLenum type
, GLsizei stride
, GLsizei count
,
792 _mesa_IndexPointer(type
, stride
, ptr
);
797 _mesa_TexCoordPointerEXT(GLint size
, GLenum type
, GLsizei stride
,
798 GLsizei count
, const GLvoid
*ptr
)
801 _mesa_TexCoordPointer(size
, type
, stride
, ptr
);
806 _mesa_EdgeFlagPointerEXT(GLsizei stride
, GLsizei count
, const GLboolean
*ptr
)
809 _mesa_EdgeFlagPointer(stride
, ptr
);
814 _mesa_InterleavedArrays(GLenum format
, GLsizei stride
, const GLvoid
*pointer
)
816 GET_CURRENT_CONTEXT(ctx
);
817 GLboolean tflag
, cflag
, nflag
; /* enable/disable flags */
818 GLint tcomps
, ccomps
, vcomps
; /* components per texcoord, color, vertex */
819 GLenum ctype
= 0; /* color type */
820 GLint coffset
= 0, noffset
= 0, voffset
;/* color, normal, vertex offsets */
821 const GLint toffset
= 0; /* always zero */
822 GLint defstride
; /* default stride */
825 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
828 c
= f
* ((4 * sizeof(GLubyte
) + (f
- 1)) / f
);
831 _mesa_error( ctx
, GL_INVALID_VALUE
, "glInterleavedArrays(stride)" );
837 tflag
= GL_FALSE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
838 tcomps
= 0; ccomps
= 0; vcomps
= 2;
843 tflag
= GL_FALSE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
844 tcomps
= 0; ccomps
= 0; vcomps
= 3;
849 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
850 tcomps
= 0; ccomps
= 4; vcomps
= 2;
851 ctype
= GL_UNSIGNED_BYTE
;
857 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
858 tcomps
= 0; ccomps
= 4; vcomps
= 3;
859 ctype
= GL_UNSIGNED_BYTE
;
865 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
866 tcomps
= 0; ccomps
= 3; vcomps
= 3;
873 tflag
= GL_FALSE
; cflag
= GL_FALSE
; nflag
= GL_TRUE
;
874 tcomps
= 0; ccomps
= 0; vcomps
= 3;
880 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_TRUE
;
881 tcomps
= 0; ccomps
= 4; vcomps
= 3;
889 tflag
= GL_TRUE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
890 tcomps
= 2; ccomps
= 0; vcomps
= 3;
895 tflag
= GL_TRUE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
896 tcomps
= 4; ccomps
= 0; vcomps
= 4;
900 case GL_T2F_C4UB_V3F
:
901 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
902 tcomps
= 2; ccomps
= 4; vcomps
= 3;
903 ctype
= GL_UNSIGNED_BYTE
;
909 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
910 tcomps
= 2; ccomps
= 3; vcomps
= 3;
917 tflag
= GL_TRUE
; cflag
= GL_FALSE
; nflag
= GL_TRUE
;
918 tcomps
= 2; ccomps
= 0; vcomps
= 3;
923 case GL_T2F_C4F_N3F_V3F
:
924 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_TRUE
;
925 tcomps
= 2; ccomps
= 4; vcomps
= 3;
932 case GL_T4F_C4F_N3F_V4F
:
933 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_TRUE
;
934 tcomps
= 4; ccomps
= 4; vcomps
= 4;
942 _mesa_error( ctx
, GL_INVALID_ENUM
, "glInterleavedArrays(format)" );
950 _mesa_DisableClientState( GL_EDGE_FLAG_ARRAY
);
951 _mesa_DisableClientState( GL_INDEX_ARRAY
);
952 /* XXX also disable secondary color and generic arrays? */
956 _mesa_EnableClientState( GL_TEXTURE_COORD_ARRAY
);
957 _mesa_TexCoordPointer( tcomps
, GL_FLOAT
, stride
,
958 (GLubyte
*) pointer
+ toffset
);
961 _mesa_DisableClientState( GL_TEXTURE_COORD_ARRAY
);
966 _mesa_EnableClientState( GL_COLOR_ARRAY
);
967 _mesa_ColorPointer( ccomps
, ctype
, stride
,
968 (GLubyte
*) pointer
+ coffset
);
971 _mesa_DisableClientState( GL_COLOR_ARRAY
);
977 _mesa_EnableClientState( GL_NORMAL_ARRAY
);
978 _mesa_NormalPointer( GL_FLOAT
, stride
, (GLubyte
*) pointer
+ noffset
);
981 _mesa_DisableClientState( GL_NORMAL_ARRAY
);
985 _mesa_EnableClientState( GL_VERTEX_ARRAY
);
986 _mesa_VertexPointer( vcomps
, GL_FLOAT
, stride
,
987 (GLubyte
*) pointer
+ voffset
);
992 _mesa_LockArraysEXT(GLint first
, GLsizei count
)
994 GET_CURRENT_CONTEXT(ctx
);
995 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
997 if (MESA_VERBOSE
& VERBOSE_API
)
998 _mesa_debug(ctx
, "glLockArrays %d %d\n", first
, count
);
1001 _mesa_error( ctx
, GL_INVALID_VALUE
, "glLockArraysEXT(first)" );
1005 _mesa_error( ctx
, GL_INVALID_VALUE
, "glLockArraysEXT(count)" );
1008 if (ctx
->Array
.LockCount
!= 0) {
1009 _mesa_error( ctx
, GL_INVALID_OPERATION
, "glLockArraysEXT(reentry)" );
1013 ctx
->Array
.LockFirst
= first
;
1014 ctx
->Array
.LockCount
= count
;
1016 ctx
->NewState
|= _NEW_ARRAY
;
1021 _mesa_UnlockArraysEXT( void )
1023 GET_CURRENT_CONTEXT(ctx
);
1024 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
1026 if (MESA_VERBOSE
& VERBOSE_API
)
1027 _mesa_debug(ctx
, "glUnlockArrays\n");
1029 if (ctx
->Array
.LockCount
== 0) {
1030 _mesa_error( ctx
, GL_INVALID_OPERATION
, "glUnlockArraysEXT(reexit)" );
1034 ctx
->Array
.LockFirst
= 0;
1035 ctx
->Array
.LockCount
= 0;
1036 ctx
->NewState
|= _NEW_ARRAY
;
1040 /* GL_EXT_multi_draw_arrays */
1042 _mesa_MultiDrawArrays( GLenum mode
, const GLint
*first
,
1043 const GLsizei
*count
, GLsizei primcount
)
1045 GET_CURRENT_CONTEXT(ctx
);
1048 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
1050 for (i
= 0; i
< primcount
; i
++) {
1052 CALL_DrawArrays(ctx
->Exec
, (mode
, first
[i
], count
[i
]));
1058 /* GL_IBM_multimode_draw_arrays */
1060 _mesa_MultiModeDrawArraysIBM( const GLenum
* mode
, const GLint
* first
,
1061 const GLsizei
* count
,
1062 GLsizei primcount
, GLint modestride
)
1064 GET_CURRENT_CONTEXT(ctx
);
1067 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
1069 for ( i
= 0 ; i
< primcount
; i
++ ) {
1070 if ( count
[i
] > 0 ) {
1071 GLenum m
= *((GLenum
*) ((GLubyte
*) mode
+ i
* modestride
));
1072 CALL_DrawArrays(ctx
->Exec
, ( m
, first
[i
], count
[i
] ));
1078 /* GL_IBM_multimode_draw_arrays */
1080 _mesa_MultiModeDrawElementsIBM( const GLenum
* mode
, const GLsizei
* count
,
1081 GLenum type
, const GLvoid
* const * indices
,
1082 GLsizei primcount
, GLint modestride
)
1084 GET_CURRENT_CONTEXT(ctx
);
1087 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
1089 /* XXX not sure about ARB_vertex_buffer_object handling here */
1091 for ( i
= 0 ; i
< primcount
; i
++ ) {
1092 if ( count
[i
] > 0 ) {
1093 GLenum m
= *((GLenum
*) ((GLubyte
*) mode
+ i
* modestride
));
1094 CALL_DrawElements(ctx
->Exec
, ( m
, count
[i
], type
, indices
[i
] ));
1101 * GL_NV_primitive_restart and GL 3.1
1104 _mesa_PrimitiveRestartIndex(GLuint index
)
1106 GET_CURRENT_CONTEXT(ctx
);
1108 if (!ctx
->Extensions
.NV_primitive_restart
&& ctx
->Version
< 31) {
1109 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glPrimitiveRestartIndexNV()");
1113 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1115 if (ctx
->Array
.RestartIndex
!= index
) {
1116 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
1117 ctx
->Array
.RestartIndex
= index
;
1123 * See GL_ARB_instanced_arrays.
1124 * Note that the instance divisor only applies to generic arrays, not
1125 * the legacy vertex arrays.
1128 _mesa_VertexAttribDivisor(GLuint index
, GLuint divisor
)
1130 struct gl_client_array
*array
;
1131 GET_CURRENT_CONTEXT(ctx
);
1132 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1134 if (!ctx
->Extensions
.ARB_instanced_arrays
) {
1135 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glVertexAttribDivisor()");
1139 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
1140 _mesa_error(ctx
, GL_INVALID_VALUE
, "glVertexAttribDivisor(index = %u)",
1145 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
1147 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)];
1148 if (array
->InstanceDivisor
!= divisor
) {
1149 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
1150 array
->InstanceDivisor
= divisor
;
1151 ctx
->Array
.ArrayObj
->NewArrays
|= VERT_BIT(VERT_ATTRIB_GENERIC(index
));
1158 * Copy one client vertex array to another.
1161 _mesa_copy_client_array(struct gl_context
*ctx
,
1162 struct gl_client_array
*dst
,
1163 struct gl_client_array
*src
)
1165 dst
->Size
= src
->Size
;
1166 dst
->Type
= src
->Type
;
1167 dst
->Format
= src
->Format
;
1168 dst
->Stride
= src
->Stride
;
1169 dst
->StrideB
= src
->StrideB
;
1170 dst
->Ptr
= src
->Ptr
;
1171 dst
->Enabled
= src
->Enabled
;
1172 dst
->Normalized
= src
->Normalized
;
1173 dst
->Integer
= src
->Integer
;
1174 dst
->InstanceDivisor
= src
->InstanceDivisor
;
1175 dst
->_ElementSize
= src
->_ElementSize
;
1176 _mesa_reference_buffer_object(ctx
, &dst
->BufferObj
, src
->BufferObj
);
1177 dst
->_MaxElement
= src
->_MaxElement
;
1183 * Print vertex array's fields.
1186 print_array(const char *name
, GLint index
, const struct gl_client_array
*array
)
1189 printf(" %s[%d]: ", name
, index
);
1191 printf(" %s: ", name
);
1192 printf("Ptr=%p, Type=0x%x, Size=%d, ElemSize=%u, Stride=%d, Buffer=%u(Size %lu), MaxElem=%u\n",
1193 array
->Ptr
, array
->Type
, array
->Size
,
1194 array
->_ElementSize
, array
->StrideB
,
1195 array
->BufferObj
->Name
, (unsigned long) array
->BufferObj
->Size
,
1196 array
->_MaxElement
);
1201 * Print current vertex object/array info. For debug.
1204 _mesa_print_arrays(struct gl_context
*ctx
)
1206 struct gl_array_object
*arrayObj
= ctx
->Array
.ArrayObj
;
1209 _mesa_update_array_object_max_element(ctx
, arrayObj
);
1211 printf("Array Object %u\n", arrayObj
->Name
);
1212 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_POS
].Enabled
)
1213 print_array("Vertex", -1, &arrayObj
->VertexAttrib
[VERT_ATTRIB_POS
]);
1214 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_NORMAL
].Enabled
)
1215 print_array("Normal", -1, &arrayObj
->VertexAttrib
[VERT_ATTRIB_NORMAL
]);
1216 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR0
].Enabled
)
1217 print_array("Color", -1, &arrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR0
]);
1218 for (i
= 0; i
< ctx
->Const
.MaxTextureCoordUnits
; i
++)
1219 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(i
)].Enabled
)
1220 print_array("TexCoord", i
, &arrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(i
)]);
1221 for (i
= 0; i
< VERT_ATTRIB_GENERIC_MAX
; i
++)
1222 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(i
)].Enabled
)
1223 print_array("Attrib", i
, &arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(i
)]);
1224 printf(" _MaxElement = %u\n", arrayObj
->_MaxElement
);
1229 * Initialize vertex array state for given context.
1232 _mesa_init_varray(struct gl_context
*ctx
)
1234 ctx
->Array
.DefaultArrayObj
= ctx
->Driver
.NewArrayObject(ctx
, 0);
1235 _mesa_reference_array_object(ctx
, &ctx
->Array
.ArrayObj
,
1236 ctx
->Array
.DefaultArrayObj
);
1237 ctx
->Array
.ActiveTexture
= 0; /* GL_ARB_multitexture */
1239 ctx
->Array
.Objects
= _mesa_NewHashTable();
1244 * Callback for deleting an array object. Called by _mesa_HashDeleteAll().
1247 delete_arrayobj_cb(GLuint id
, void *data
, void *userData
)
1249 struct gl_array_object
*arrayObj
= (struct gl_array_object
*) data
;
1250 struct gl_context
*ctx
= (struct gl_context
*) userData
;
1251 _mesa_delete_array_object(ctx
, arrayObj
);
1256 * Free vertex array state for given context.
1259 _mesa_free_varray_data(struct gl_context
*ctx
)
1261 _mesa_HashDeleteAll(ctx
->Array
.Objects
, delete_arrayobj_cb
, ctx
);
1262 _mesa_DeleteHashTable(ctx
->Array
.Objects
);