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_FogCoordPointerEXT(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_SecondaryColorPointerEXT(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_PointSizePointer(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
);
434 #if FEATURE_NV_vertex_program
436 * Set a vertex attribute array.
437 * Note that these arrays DO alias the conventional GL vertex arrays
438 * (position, normal, color, fog, texcoord, etc).
439 * The generic attribute slots at #16 and above are not touched.
442 _mesa_VertexAttribPointerNV(GLuint index
, GLint size
, GLenum type
,
443 GLsizei stride
, const GLvoid
*ptr
)
445 const GLbitfield legalTypes
= (UNSIGNED_BYTE_BIT
| SHORT_BIT
|
446 FLOAT_BIT
| DOUBLE_BIT
);
447 GLboolean normalized
= GL_FALSE
;
448 GET_CURRENT_CONTEXT(ctx
);
449 ASSERT_OUTSIDE_BEGIN_END(ctx
);
451 if (index
>= MAX_NV_VERTEX_PROGRAM_INPUTS
) {
452 _mesa_error(ctx
, GL_INVALID_VALUE
, "glVertexAttribPointerNV(index)");
456 if (type
== GL_UNSIGNED_BYTE
&& size
!= 4) {
457 _mesa_error(ctx
, GL_INVALID_VALUE
, "glVertexAttribPointerNV(size!=4)");
461 update_array(ctx
, "glVertexAttribPointerNV", VERT_ATTRIB_GENERIC(index
),
462 legalTypes
, 1, BGRA_OR_4
,
463 size
, type
, stride
, normalized
, GL_FALSE
, ptr
);
468 #if FEATURE_ARB_vertex_program
470 * Set a generic vertex attribute array.
471 * Note that these arrays DO NOT alias the conventional GL vertex arrays
472 * (position, normal, color, fog, texcoord, etc).
475 _mesa_VertexAttribPointerARB(GLuint index
, GLint size
, GLenum type
,
476 GLboolean normalized
,
477 GLsizei stride
, const GLvoid
*ptr
)
479 const GLbitfield legalTypes
= (BYTE_BIT
| UNSIGNED_BYTE_BIT
|
480 SHORT_BIT
| UNSIGNED_SHORT_BIT
|
481 INT_BIT
| UNSIGNED_INT_BIT
|
482 HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
|
483 FIXED_ES_BIT
| FIXED_GL_BIT
|
484 UNSIGNED_INT_2_10_10_10_REV_BIT
|
485 INT_2_10_10_10_REV_BIT
);
486 GET_CURRENT_CONTEXT(ctx
);
487 ASSERT_OUTSIDE_BEGIN_END(ctx
);
489 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
490 _mesa_error(ctx
, GL_INVALID_VALUE
, "glVertexAttribPointerARB(index)");
494 update_array(ctx
, "glVertexAttribPointer", VERT_ATTRIB_GENERIC(index
),
495 legalTypes
, 1, BGRA_OR_4
,
496 size
, type
, stride
, normalized
, GL_FALSE
, ptr
);
502 * GL_EXT_gpu_shader4 / GL 3.0.
503 * Set an integer-valued vertex attribute array.
504 * Note that these arrays DO NOT alias the conventional GL vertex arrays
505 * (position, normal, color, fog, texcoord, etc).
508 _mesa_VertexAttribIPointer(GLuint index
, GLint size
, GLenum type
,
509 GLsizei stride
, const GLvoid
*ptr
)
511 const GLbitfield legalTypes
= (BYTE_BIT
| UNSIGNED_BYTE_BIT
|
512 SHORT_BIT
| UNSIGNED_SHORT_BIT
|
513 INT_BIT
| UNSIGNED_INT_BIT
);
514 const GLboolean normalized
= GL_FALSE
;
515 const GLboolean integer
= GL_TRUE
;
516 GET_CURRENT_CONTEXT(ctx
);
517 ASSERT_OUTSIDE_BEGIN_END(ctx
);
519 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
520 _mesa_error(ctx
, GL_INVALID_VALUE
, "glVertexAttribIPointer(index)");
524 update_array(ctx
, "glVertexAttribIPointer", VERT_ATTRIB_GENERIC(index
),
526 size
, type
, stride
, normalized
, integer
, ptr
);
532 _mesa_EnableVertexAttribArrayARB(GLuint index
)
534 struct gl_array_object
*arrayObj
;
535 GET_CURRENT_CONTEXT(ctx
);
536 ASSERT_OUTSIDE_BEGIN_END(ctx
);
538 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
539 _mesa_error(ctx
, GL_INVALID_VALUE
,
540 "glEnableVertexAttribArrayARB(index)");
544 arrayObj
= ctx
->Array
.ArrayObj
;
546 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(arrayObj
->VertexAttrib
));
548 if (!arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
) {
549 /* was disabled, now being enabled */
550 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
551 arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
= GL_TRUE
;
552 arrayObj
->_Enabled
|= VERT_BIT_GENERIC(index
);
553 arrayObj
->NewArrays
|= VERT_BIT_GENERIC(index
);
559 _mesa_DisableVertexAttribArrayARB(GLuint index
)
561 struct gl_array_object
*arrayObj
;
562 GET_CURRENT_CONTEXT(ctx
);
563 ASSERT_OUTSIDE_BEGIN_END(ctx
);
565 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
566 _mesa_error(ctx
, GL_INVALID_VALUE
,
567 "glDisableVertexAttribArrayARB(index)");
571 arrayObj
= ctx
->Array
.ArrayObj
;
573 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(arrayObj
->VertexAttrib
));
575 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
) {
576 /* was enabled, now being disabled */
577 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
578 arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
= GL_FALSE
;
579 arrayObj
->_Enabled
&= ~VERT_BIT_GENERIC(index
);
580 arrayObj
->NewArrays
|= VERT_BIT_GENERIC(index
);
586 * Return info for a vertex attribute array (no alias with legacy
587 * vertex attributes (pos, normal, color, etc)). This function does
588 * not handle the 4-element GL_CURRENT_VERTEX_ATTRIB_ARB query.
591 get_vertex_array_attrib(struct gl_context
*ctx
, GLuint index
, GLenum pname
,
594 const struct gl_client_array
*array
;
596 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
597 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(index=%u)", caller
, index
);
601 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
603 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)];
606 case GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB
:
607 return array
->Enabled
;
608 case GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB
:
610 case GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB
:
611 return array
->Stride
;
612 case GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB
:
614 case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB
:
615 return array
->Normalized
;
616 case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING_ARB
:
617 return array
->BufferObj
->Name
;
618 case GL_VERTEX_ATTRIB_ARRAY_INTEGER
:
619 if ((_mesa_is_desktop_gl(ctx
)
620 && (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
))
621 || _mesa_is_gles3(ctx
)) {
622 return array
->Integer
;
625 case GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ARB
:
626 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_instanced_arrays
)
627 || _mesa_is_gles3(ctx
)) {
628 return array
->InstanceDivisor
;
636 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", caller
, pname
);
641 static const GLfloat
*
642 get_current_attrib(struct gl_context
*ctx
, GLuint index
, const char *function
)
645 /* In OpenGL 3.1 attribute 0 becomes non-magic, just like in OpenGL ES
646 * 2.0. Note that we cannot just check for API_OPENGL_CORE here because
647 * that will erroneously allow this usage in a 3.0 forward-compatible
650 if ((ctx
->API
!= API_OPENGL_CORE
|| ctx
->Version
< 31)
651 && ctx
->API
!= API_OPENGLES2
) {
652 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(index==0)", function
);
656 else if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
657 _mesa_error(ctx
, GL_INVALID_VALUE
,
658 "%s(index>=GL_MAX_VERTEX_ATTRIBS)", function
);
662 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
664 FLUSH_CURRENT(ctx
, 0);
665 return ctx
->Current
.Attrib
[VERT_ATTRIB_GENERIC(index
)];
669 _mesa_GetVertexAttribfvARB(GLuint index
, GLenum pname
, GLfloat
*params
)
671 GET_CURRENT_CONTEXT(ctx
);
672 ASSERT_OUTSIDE_BEGIN_END(ctx
);
674 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
675 const GLfloat
*v
= get_current_attrib(ctx
, index
, "glGetVertexAttribfv");
681 params
[0] = (GLfloat
) get_vertex_array_attrib(ctx
, index
, pname
,
682 "glGetVertexAttribfv");
688 _mesa_GetVertexAttribdvARB(GLuint index
, GLenum pname
, GLdouble
*params
)
690 GET_CURRENT_CONTEXT(ctx
);
691 ASSERT_OUTSIDE_BEGIN_END(ctx
);
693 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
694 const GLfloat
*v
= get_current_attrib(ctx
, index
, "glGetVertexAttribdv");
696 params
[0] = (GLdouble
) v
[0];
697 params
[1] = (GLdouble
) v
[1];
698 params
[2] = (GLdouble
) v
[2];
699 params
[3] = (GLdouble
) v
[3];
703 params
[0] = (GLdouble
) get_vertex_array_attrib(ctx
, index
, pname
,
704 "glGetVertexAttribdv");
710 _mesa_GetVertexAttribivARB(GLuint index
, GLenum pname
, GLint
*params
)
712 GET_CURRENT_CONTEXT(ctx
);
713 ASSERT_OUTSIDE_BEGIN_END(ctx
);
715 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
716 const GLfloat
*v
= get_current_attrib(ctx
, index
, "glGetVertexAttribiv");
718 /* XXX should floats in[0,1] be scaled to full int range? */
719 params
[0] = (GLint
) v
[0];
720 params
[1] = (GLint
) v
[1];
721 params
[2] = (GLint
) v
[2];
722 params
[3] = (GLint
) v
[3];
726 params
[0] = (GLint
) get_vertex_array_attrib(ctx
, index
, pname
,
727 "glGetVertexAttribiv");
734 _mesa_GetVertexAttribIiv(GLuint index
, GLenum pname
, GLint
*params
)
736 GET_CURRENT_CONTEXT(ctx
);
737 ASSERT_OUTSIDE_BEGIN_END(ctx
);
739 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
741 get_current_attrib(ctx
, index
, "glGetVertexAttribIiv");
743 /* XXX we don't have true integer-valued vertex attribs yet */
744 params
[0] = (GLint
) v
[0];
745 params
[1] = (GLint
) v
[1];
746 params
[2] = (GLint
) v
[2];
747 params
[3] = (GLint
) v
[3];
751 params
[0] = (GLint
) get_vertex_array_attrib(ctx
, index
, pname
,
752 "glGetVertexAttribIiv");
759 _mesa_GetVertexAttribIuiv(GLuint index
, GLenum pname
, GLuint
*params
)
761 GET_CURRENT_CONTEXT(ctx
);
762 ASSERT_OUTSIDE_BEGIN_END(ctx
);
764 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
766 get_current_attrib(ctx
, index
, "glGetVertexAttribIuiv");
768 /* XXX we don't have true integer-valued vertex attribs yet */
769 params
[0] = (GLuint
) v
[0];
770 params
[1] = (GLuint
) v
[1];
771 params
[2] = (GLuint
) v
[2];
772 params
[3] = (GLuint
) v
[3];
776 params
[0] = get_vertex_array_attrib(ctx
, index
, pname
,
777 "glGetVertexAttribIuiv");
783 _mesa_GetVertexAttribPointervARB(GLuint index
, GLenum pname
, GLvoid
**pointer
)
785 GET_CURRENT_CONTEXT(ctx
);
786 ASSERT_OUTSIDE_BEGIN_END(ctx
);
788 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
789 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetVertexAttribPointerARB(index)");
793 if (pname
!= GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB
) {
794 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetVertexAttribPointerARB(pname)");
798 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
800 *pointer
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Ptr
;
805 _mesa_VertexPointerEXT(GLint size
, GLenum type
, GLsizei stride
,
806 GLsizei count
, const GLvoid
*ptr
)
809 _mesa_VertexPointer(size
, type
, stride
, ptr
);
814 _mesa_NormalPointerEXT(GLenum type
, GLsizei stride
, GLsizei count
,
818 _mesa_NormalPointer(type
, stride
, ptr
);
823 _mesa_ColorPointerEXT(GLint size
, GLenum type
, GLsizei stride
, GLsizei count
,
827 _mesa_ColorPointer(size
, type
, stride
, ptr
);
832 _mesa_IndexPointerEXT(GLenum type
, GLsizei stride
, GLsizei count
,
836 _mesa_IndexPointer(type
, stride
, ptr
);
841 _mesa_TexCoordPointerEXT(GLint size
, GLenum type
, GLsizei stride
,
842 GLsizei count
, const GLvoid
*ptr
)
845 _mesa_TexCoordPointer(size
, type
, stride
, ptr
);
850 _mesa_EdgeFlagPointerEXT(GLsizei stride
, GLsizei count
, const GLboolean
*ptr
)
853 _mesa_EdgeFlagPointer(stride
, ptr
);
858 _mesa_InterleavedArrays(GLenum format
, GLsizei stride
, const GLvoid
*pointer
)
860 GET_CURRENT_CONTEXT(ctx
);
861 GLboolean tflag
, cflag
, nflag
; /* enable/disable flags */
862 GLint tcomps
, ccomps
, vcomps
; /* components per texcoord, color, vertex */
863 GLenum ctype
= 0; /* color type */
864 GLint coffset
= 0, noffset
= 0, voffset
;/* color, normal, vertex offsets */
865 const GLint toffset
= 0; /* always zero */
866 GLint defstride
; /* default stride */
869 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
872 c
= f
* ((4 * sizeof(GLubyte
) + (f
- 1)) / f
);
875 _mesa_error( ctx
, GL_INVALID_VALUE
, "glInterleavedArrays(stride)" );
881 tflag
= GL_FALSE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
882 tcomps
= 0; ccomps
= 0; vcomps
= 2;
887 tflag
= GL_FALSE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
888 tcomps
= 0; ccomps
= 0; vcomps
= 3;
893 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
894 tcomps
= 0; ccomps
= 4; vcomps
= 2;
895 ctype
= GL_UNSIGNED_BYTE
;
901 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
902 tcomps
= 0; ccomps
= 4; vcomps
= 3;
903 ctype
= GL_UNSIGNED_BYTE
;
909 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
910 tcomps
= 0; ccomps
= 3; vcomps
= 3;
917 tflag
= GL_FALSE
; cflag
= GL_FALSE
; nflag
= GL_TRUE
;
918 tcomps
= 0; ccomps
= 0; vcomps
= 3;
924 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_TRUE
;
925 tcomps
= 0; ccomps
= 4; vcomps
= 3;
933 tflag
= GL_TRUE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
934 tcomps
= 2; ccomps
= 0; vcomps
= 3;
939 tflag
= GL_TRUE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
940 tcomps
= 4; ccomps
= 0; vcomps
= 4;
944 case GL_T2F_C4UB_V3F
:
945 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
946 tcomps
= 2; ccomps
= 4; vcomps
= 3;
947 ctype
= GL_UNSIGNED_BYTE
;
953 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
954 tcomps
= 2; ccomps
= 3; vcomps
= 3;
961 tflag
= GL_TRUE
; cflag
= GL_FALSE
; nflag
= GL_TRUE
;
962 tcomps
= 2; ccomps
= 0; vcomps
= 3;
967 case GL_T2F_C4F_N3F_V3F
:
968 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_TRUE
;
969 tcomps
= 2; ccomps
= 4; vcomps
= 3;
976 case GL_T4F_C4F_N3F_V4F
:
977 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_TRUE
;
978 tcomps
= 4; ccomps
= 4; vcomps
= 4;
986 _mesa_error( ctx
, GL_INVALID_ENUM
, "glInterleavedArrays(format)" );
994 _mesa_DisableClientState( GL_EDGE_FLAG_ARRAY
);
995 _mesa_DisableClientState( GL_INDEX_ARRAY
);
996 /* XXX also disable secondary color and generic arrays? */
1000 _mesa_EnableClientState( GL_TEXTURE_COORD_ARRAY
);
1001 _mesa_TexCoordPointer( tcomps
, GL_FLOAT
, stride
,
1002 (GLubyte
*) pointer
+ toffset
);
1005 _mesa_DisableClientState( GL_TEXTURE_COORD_ARRAY
);
1010 _mesa_EnableClientState( GL_COLOR_ARRAY
);
1011 _mesa_ColorPointer( ccomps
, ctype
, stride
,
1012 (GLubyte
*) pointer
+ coffset
);
1015 _mesa_DisableClientState( GL_COLOR_ARRAY
);
1021 _mesa_EnableClientState( GL_NORMAL_ARRAY
);
1022 _mesa_NormalPointer( GL_FLOAT
, stride
, (GLubyte
*) pointer
+ noffset
);
1025 _mesa_DisableClientState( GL_NORMAL_ARRAY
);
1029 _mesa_EnableClientState( GL_VERTEX_ARRAY
);
1030 _mesa_VertexPointer( vcomps
, GL_FLOAT
, stride
,
1031 (GLubyte
*) pointer
+ voffset
);
1036 _mesa_LockArraysEXT(GLint first
, GLsizei count
)
1038 GET_CURRENT_CONTEXT(ctx
);
1039 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
1041 if (MESA_VERBOSE
& VERBOSE_API
)
1042 _mesa_debug(ctx
, "glLockArrays %d %d\n", first
, count
);
1045 _mesa_error( ctx
, GL_INVALID_VALUE
, "glLockArraysEXT(first)" );
1049 _mesa_error( ctx
, GL_INVALID_VALUE
, "glLockArraysEXT(count)" );
1052 if (ctx
->Array
.LockCount
!= 0) {
1053 _mesa_error( ctx
, GL_INVALID_OPERATION
, "glLockArraysEXT(reentry)" );
1057 ctx
->Array
.LockFirst
= first
;
1058 ctx
->Array
.LockCount
= count
;
1060 ctx
->NewState
|= _NEW_ARRAY
;
1065 _mesa_UnlockArraysEXT( void )
1067 GET_CURRENT_CONTEXT(ctx
);
1068 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
1070 if (MESA_VERBOSE
& VERBOSE_API
)
1071 _mesa_debug(ctx
, "glUnlockArrays\n");
1073 if (ctx
->Array
.LockCount
== 0) {
1074 _mesa_error( ctx
, GL_INVALID_OPERATION
, "glUnlockArraysEXT(reexit)" );
1078 ctx
->Array
.LockFirst
= 0;
1079 ctx
->Array
.LockCount
= 0;
1080 ctx
->NewState
|= _NEW_ARRAY
;
1084 /* GL_EXT_multi_draw_arrays */
1086 _mesa_MultiDrawArraysEXT( GLenum mode
, const GLint
*first
,
1087 const GLsizei
*count
, GLsizei primcount
)
1089 GET_CURRENT_CONTEXT(ctx
);
1092 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
1094 for (i
= 0; i
< primcount
; i
++) {
1096 CALL_DrawArrays(ctx
->Exec
, (mode
, first
[i
], count
[i
]));
1102 /* GL_IBM_multimode_draw_arrays */
1104 _mesa_MultiModeDrawArraysIBM( const GLenum
* mode
, const GLint
* first
,
1105 const GLsizei
* count
,
1106 GLsizei primcount
, GLint modestride
)
1108 GET_CURRENT_CONTEXT(ctx
);
1111 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
1113 for ( i
= 0 ; i
< primcount
; i
++ ) {
1114 if ( count
[i
] > 0 ) {
1115 GLenum m
= *((GLenum
*) ((GLubyte
*) mode
+ i
* modestride
));
1116 CALL_DrawArrays(ctx
->Exec
, ( m
, first
[i
], count
[i
] ));
1122 /* GL_IBM_multimode_draw_arrays */
1124 _mesa_MultiModeDrawElementsIBM( const GLenum
* mode
, const GLsizei
* count
,
1125 GLenum type
, const GLvoid
* const * indices
,
1126 GLsizei primcount
, GLint modestride
)
1128 GET_CURRENT_CONTEXT(ctx
);
1131 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
1133 /* XXX not sure about ARB_vertex_buffer_object handling here */
1135 for ( i
= 0 ; i
< primcount
; i
++ ) {
1136 if ( count
[i
] > 0 ) {
1137 GLenum m
= *((GLenum
*) ((GLubyte
*) mode
+ i
* modestride
));
1138 CALL_DrawElements(ctx
->Exec
, ( m
, count
[i
], type
, indices
[i
] ));
1145 * GL_NV_primitive_restart and GL 3.1
1148 _mesa_PrimitiveRestartIndex(GLuint index
)
1150 GET_CURRENT_CONTEXT(ctx
);
1152 if (!ctx
->Extensions
.NV_primitive_restart
&& ctx
->Version
< 31) {
1153 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glPrimitiveRestartIndexNV()");
1157 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1159 if (ctx
->Array
.RestartIndex
!= index
) {
1160 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
1161 ctx
->Array
.RestartIndex
= index
;
1167 * See GL_ARB_instanced_arrays.
1168 * Note that the instance divisor only applies to generic arrays, not
1169 * the legacy vertex arrays.
1172 _mesa_VertexAttribDivisor(GLuint index
, GLuint divisor
)
1174 struct gl_client_array
*array
;
1175 GET_CURRENT_CONTEXT(ctx
);
1176 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1178 if (!ctx
->Extensions
.ARB_instanced_arrays
) {
1179 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glVertexAttribDivisor()");
1183 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
1184 _mesa_error(ctx
, GL_INVALID_ENUM
, "glVertexAttribDivisor(index = %u)",
1189 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
1191 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)];
1192 if (array
->InstanceDivisor
!= divisor
) {
1193 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
1194 array
->InstanceDivisor
= divisor
;
1195 ctx
->Array
.ArrayObj
->NewArrays
|= VERT_BIT(VERT_ATTRIB_GENERIC(index
));
1202 * Copy one client vertex array to another.
1205 _mesa_copy_client_array(struct gl_context
*ctx
,
1206 struct gl_client_array
*dst
,
1207 struct gl_client_array
*src
)
1209 dst
->Size
= src
->Size
;
1210 dst
->Type
= src
->Type
;
1211 dst
->Format
= src
->Format
;
1212 dst
->Stride
= src
->Stride
;
1213 dst
->StrideB
= src
->StrideB
;
1214 dst
->Ptr
= src
->Ptr
;
1215 dst
->Enabled
= src
->Enabled
;
1216 dst
->Normalized
= src
->Normalized
;
1217 dst
->Integer
= src
->Integer
;
1218 dst
->InstanceDivisor
= src
->InstanceDivisor
;
1219 dst
->_ElementSize
= src
->_ElementSize
;
1220 _mesa_reference_buffer_object(ctx
, &dst
->BufferObj
, src
->BufferObj
);
1221 dst
->_MaxElement
= src
->_MaxElement
;
1227 * Print vertex array's fields.
1230 print_array(const char *name
, GLint index
, const struct gl_client_array
*array
)
1233 printf(" %s[%d]: ", name
, index
);
1235 printf(" %s: ", name
);
1236 printf("Ptr=%p, Type=0x%x, Size=%d, ElemSize=%u, Stride=%d, Buffer=%u(Size %lu), MaxElem=%u\n",
1237 array
->Ptr
, array
->Type
, array
->Size
,
1238 array
->_ElementSize
, array
->StrideB
,
1239 array
->BufferObj
->Name
, (unsigned long) array
->BufferObj
->Size
,
1240 array
->_MaxElement
);
1245 * Print current vertex object/array info. For debug.
1248 _mesa_print_arrays(struct gl_context
*ctx
)
1250 struct gl_array_object
*arrayObj
= ctx
->Array
.ArrayObj
;
1253 _mesa_update_array_object_max_element(ctx
, arrayObj
);
1255 printf("Array Object %u\n", arrayObj
->Name
);
1256 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_POS
].Enabled
)
1257 print_array("Vertex", -1, &arrayObj
->VertexAttrib
[VERT_ATTRIB_POS
]);
1258 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_NORMAL
].Enabled
)
1259 print_array("Normal", -1, &arrayObj
->VertexAttrib
[VERT_ATTRIB_NORMAL
]);
1260 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR0
].Enabled
)
1261 print_array("Color", -1, &arrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR0
]);
1262 for (i
= 0; i
< ctx
->Const
.MaxTextureCoordUnits
; i
++)
1263 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(i
)].Enabled
)
1264 print_array("TexCoord", i
, &arrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(i
)]);
1265 for (i
= 0; i
< VERT_ATTRIB_GENERIC_MAX
; i
++)
1266 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(i
)].Enabled
)
1267 print_array("Attrib", i
, &arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(i
)]);
1268 printf(" _MaxElement = %u\n", arrayObj
->_MaxElement
);
1273 * Initialize vertex array state for given context.
1276 _mesa_init_varray(struct gl_context
*ctx
)
1278 ctx
->Array
.DefaultArrayObj
= ctx
->Driver
.NewArrayObject(ctx
, 0);
1279 _mesa_reference_array_object(ctx
, &ctx
->Array
.ArrayObj
,
1280 ctx
->Array
.DefaultArrayObj
);
1281 ctx
->Array
.ActiveTexture
= 0; /* GL_ARB_multitexture */
1283 ctx
->Array
.Objects
= _mesa_NewHashTable();
1288 * Callback for deleting an array object. Called by _mesa_HashDeleteAll().
1291 delete_arrayobj_cb(GLuint id
, void *data
, void *userData
)
1293 struct gl_array_object
*arrayObj
= (struct gl_array_object
*) data
;
1294 struct gl_context
*ctx
= (struct gl_context
*) userData
;
1295 _mesa_delete_array_object(ctx
, arrayObj
);
1300 * Free vertex array state for given context.
1303 _mesa_free_varray_data(struct gl_context
*ctx
)
1305 _mesa_HashDeleteAll(ctx
->Array
.Objects
, delete_arrayobj_cb
, ctx
);
1306 _mesa_DeleteHashTable(ctx
->Array
.Objects
);