2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
29 #include "bufferobj.h"
39 #include "main/dispatch.h"
42 /** Used to do error checking for GL_EXT_vertex_array_bgra */
46 /** Used to indicate which GL datatypes are accepted by each of the
47 * glVertex/Color/Attrib/EtcPointer() functions.
51 #define UNSIGNED_BYTE_BIT 0x4
53 #define UNSIGNED_SHORT_BIT 0x10
55 #define UNSIGNED_INT_BIT 0x40
57 #define FLOAT_BIT 0x100
58 #define DOUBLE_BIT 0x200
59 #define FIXED_ES_BIT 0x400
60 #define FIXED_GL_BIT 0x800
61 #define UNSIGNED_INT_2_10_10_10_REV_BIT 0x1000
62 #define INT_2_10_10_10_REV_BIT 0x2000
65 /** Convert GL datatype enum into a <type>_BIT value seen above */
67 type_to_bit(const struct gl_context
*ctx
, GLenum type
)
74 case GL_UNSIGNED_BYTE
:
75 return UNSIGNED_BYTE_BIT
;
78 case GL_UNSIGNED_SHORT
:
79 return UNSIGNED_SHORT_BIT
;
83 return UNSIGNED_INT_BIT
;
85 if (ctx
->Extensions
.ARB_half_float_vertex
)
94 return _mesa_is_desktop_gl(ctx
) ? FIXED_GL_BIT
: FIXED_ES_BIT
;
95 case GL_UNSIGNED_INT_2_10_10_10_REV
:
96 return UNSIGNED_INT_2_10_10_10_REV_BIT
;
97 case GL_INT_2_10_10_10_REV
:
98 return INT_2_10_10_10_REV_BIT
;
106 * Do error checking and update state for glVertex/Color/TexCoord/...Pointer
109 * \param func name of calling function used for error reporting
110 * \param attrib the attribute array index to update
111 * \param legalTypes bitmask of *_BIT above indicating legal datatypes
112 * \param sizeMin min allowable size value
113 * \param sizeMax max allowable size value (may also be BGRA_OR_4)
114 * \param size components per element (1, 2, 3 or 4)
115 * \param type datatype of each component (GL_FLOAT, GL_INT, etc)
116 * \param stride stride between elements, in elements
117 * \param normalized are integer types converted to floats in [-1, 1]?
118 * \param integer integer-valued values (will not be normalized to [-1,1])
119 * \param ptr the address (or offset inside VBO) of the array data
122 update_array(struct gl_context
*ctx
,
124 GLuint attrib
, GLbitfield legalTypesMask
,
125 GLint sizeMin
, GLint sizeMax
,
126 GLint size
, GLenum type
, GLsizei stride
,
127 GLboolean normalized
, GLboolean integer
,
130 struct gl_client_array
*array
;
133 GLenum format
= GL_RGBA
;
135 /* Page 407 (page 423 of the PDF) of the OpenGL 3.0 spec says:
137 * "Client vertex arrays - all vertex array attribute pointers must
138 * refer to buffer objects (section 2.9.2). The default vertex array
139 * object (the name zero) is also deprecated. Calling
140 * VertexAttribPointer when no buffer object or no vertex array object
141 * is bound will generate an INVALID_OPERATION error..."
143 * The check for VBOs is handled below.
145 if (ctx
->API
== API_OPENGL_CORE
146 && (ctx
->Array
.ArrayObj
== ctx
->Array
.DefaultArrayObj
)) {
147 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(no array object bound)",
152 if (_mesa_is_gles(ctx
)) {
153 legalTypesMask
&= ~(FIXED_GL_BIT
| DOUBLE_BIT
);
155 /* GL_INT and GL_UNSIGNED_INT data is not allowed in OpenGL ES until
156 * 3.0. The 2_10_10_10 types are added in OpenGL ES 3.0 or
157 * GL_OES_vertex_type_10_10_10_2. GL_HALF_FLOAT data is not allowed
158 * until 3.0 or with the GL_OES_vertex_half float extension, which isn't
159 * quite as trivial as we'd like because it uses a different enum value
160 * for GL_HALF_FLOAT_OES.
162 if (ctx
->Version
< 30) {
163 legalTypesMask
&= ~(UNSIGNED_INT_BIT
165 | UNSIGNED_INT_2_10_10_10_REV_BIT
166 | INT_2_10_10_10_REV_BIT
170 /* BGRA ordering is not supported in ES contexts.
172 if (sizeMax
== BGRA_OR_4
)
175 legalTypesMask
&= ~FIXED_ES_BIT
;
177 if (!ctx
->Extensions
.ARB_ES2_compatibility
)
178 legalTypesMask
&= ~FIXED_GL_BIT
;
180 if (!ctx
->Extensions
.ARB_vertex_type_2_10_10_10_rev
)
181 legalTypesMask
&= ~(UNSIGNED_INT_2_10_10_10_REV_BIT
|
182 INT_2_10_10_10_REV_BIT
);
185 typeBit
= type_to_bit(ctx
, type
);
186 if (typeBit
== 0x0 || (typeBit
& legalTypesMask
) == 0x0) {
187 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(type = %s)",
188 func
, _mesa_lookup_enum_by_nr(type
));
192 /* Do size parameter checking.
193 * If sizeMax = BGRA_OR_4 it means that size = GL_BGRA is legal and
194 * must be handled specially.
196 if (ctx
->Extensions
.EXT_vertex_array_bgra
&&
197 sizeMax
== BGRA_OR_4
&&
199 GLboolean bgra_error
= GL_FALSE
;
201 if (ctx
->Extensions
.ARB_vertex_type_2_10_10_10_rev
) {
202 if (type
!= GL_UNSIGNED_INT_2_10_10_10_REV
&&
203 type
!= GL_INT_2_10_10_10_REV
&&
204 type
!= GL_UNSIGNED_BYTE
)
205 bgra_error
= GL_TRUE
;
206 } else if (type
!= GL_UNSIGNED_BYTE
)
207 bgra_error
= GL_TRUE
;
210 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(GL_BGRA/GLubyte)", func
);
216 else if (size
< sizeMin
|| size
> sizeMax
|| size
> 4) {
217 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(size=%d)", func
, size
);
221 if (ctx
->Extensions
.ARB_vertex_type_2_10_10_10_rev
&&
222 (type
== GL_UNSIGNED_INT_2_10_10_10_REV
||
223 type
== GL_INT_2_10_10_10_REV
) && size
!= 4) {
224 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(size=%d)", func
, size
);
231 _mesa_error( ctx
, GL_INVALID_VALUE
, "%s(stride=%d)", func
, stride
);
235 /* Page 29 (page 44 of the PDF) of the OpenGL 3.3 spec says:
237 * "An INVALID_OPERATION error is generated under any of the following
242 * * any of the *Pointer commands specifying the location and
243 * organization of vertex array data are called while zero is bound
244 * to the ARRAY_BUFFER buffer object binding point (see section
245 * 2.9.6), and the pointer argument is not NULL."
247 if (ptr
!= NULL
&& ctx
->Array
.ArrayObj
->ARBsemantics
&&
248 !_mesa_is_bufferobj(ctx
->Array
.ArrayBufferObj
)) {
249 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(non-VBO array)", func
);
253 elementSize
= _mesa_bytes_per_vertex_attrib(size
, type
);
254 assert(elementSize
!= -1);
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
;
275 _mesa_VertexPointer(GLint size
, GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
277 GET_CURRENT_CONTEXT(ctx
);
278 GLbitfield legalTypes
= (ctx
->API
== API_OPENGLES
)
279 ? (BYTE_BIT
| SHORT_BIT
| FLOAT_BIT
| FIXED_ES_BIT
)
280 : (SHORT_BIT
| INT_BIT
| FLOAT_BIT
|
281 DOUBLE_BIT
| HALF_BIT
|
282 UNSIGNED_INT_2_10_10_10_REV_BIT
|
283 INT_2_10_10_10_REV_BIT
);
285 FLUSH_VERTICES(ctx
, 0);
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
);
304 FLUSH_VERTICES(ctx
, 0);
306 update_array(ctx
, "glNormalPointer", VERT_ATTRIB_NORMAL
,
308 3, type
, stride
, GL_TRUE
, GL_FALSE
, ptr
);
313 _mesa_ColorPointer(GLint size
, GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
315 GET_CURRENT_CONTEXT(ctx
);
316 const GLbitfield legalTypes
= (ctx
->API
== API_OPENGLES
)
317 ? (UNSIGNED_BYTE_BIT
| HALF_BIT
| FLOAT_BIT
| FIXED_ES_BIT
)
318 : (BYTE_BIT
| UNSIGNED_BYTE_BIT
|
319 SHORT_BIT
| UNSIGNED_SHORT_BIT
|
320 INT_BIT
| UNSIGNED_INT_BIT
|
321 HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
|
322 UNSIGNED_INT_2_10_10_10_REV_BIT
|
323 INT_2_10_10_10_REV_BIT
);
324 const GLint sizeMin
= (ctx
->API
== API_OPENGLES
) ? 4 : 3;
326 FLUSH_VERTICES(ctx
, 0);
328 update_array(ctx
, "glColorPointer", VERT_ATTRIB_COLOR0
,
329 legalTypes
, sizeMin
, BGRA_OR_4
,
330 size
, type
, stride
, GL_TRUE
, GL_FALSE
, ptr
);
335 _mesa_FogCoordPointer(GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
337 const GLbitfield legalTypes
= (HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
);
338 GET_CURRENT_CONTEXT(ctx
);
340 FLUSH_VERTICES(ctx
, 0);
342 update_array(ctx
, "glFogCoordPointer", VERT_ATTRIB_FOG
,
344 1, type
, stride
, GL_FALSE
, GL_FALSE
, ptr
);
349 _mesa_IndexPointer(GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
351 const GLbitfield legalTypes
= (UNSIGNED_BYTE_BIT
| SHORT_BIT
| INT_BIT
|
352 FLOAT_BIT
| DOUBLE_BIT
);
353 GET_CURRENT_CONTEXT(ctx
);
355 FLUSH_VERTICES(ctx
, 0);
357 update_array(ctx
, "glIndexPointer", VERT_ATTRIB_COLOR_INDEX
,
359 1, type
, stride
, GL_FALSE
, GL_FALSE
, ptr
);
364 _mesa_SecondaryColorPointer(GLint size
, GLenum type
,
365 GLsizei stride
, const GLvoid
*ptr
)
367 const GLbitfield legalTypes
= (BYTE_BIT
| UNSIGNED_BYTE_BIT
|
368 SHORT_BIT
| UNSIGNED_SHORT_BIT
|
369 INT_BIT
| UNSIGNED_INT_BIT
|
370 HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
|
371 UNSIGNED_INT_2_10_10_10_REV_BIT
|
372 INT_2_10_10_10_REV_BIT
);
373 GET_CURRENT_CONTEXT(ctx
);
375 FLUSH_VERTICES(ctx
, 0);
377 update_array(ctx
, "glSecondaryColorPointer", VERT_ATTRIB_COLOR1
,
378 legalTypes
, 3, BGRA_OR_4
,
379 size
, type
, stride
, GL_TRUE
, GL_FALSE
, ptr
);
384 _mesa_TexCoordPointer(GLint size
, GLenum type
, GLsizei stride
,
387 GET_CURRENT_CONTEXT(ctx
);
388 GLbitfield legalTypes
= (ctx
->API
== API_OPENGLES
)
389 ? (BYTE_BIT
| SHORT_BIT
| FLOAT_BIT
| FIXED_ES_BIT
)
390 : (SHORT_BIT
| INT_BIT
|
391 HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
|
392 UNSIGNED_INT_2_10_10_10_REV_BIT
|
393 INT_2_10_10_10_REV_BIT
);
394 const GLint sizeMin
= (ctx
->API
== API_OPENGLES
) ? 2 : 1;
395 const GLuint unit
= ctx
->Array
.ActiveTexture
;
397 FLUSH_VERTICES(ctx
, 0);
399 update_array(ctx
, "glTexCoordPointer", VERT_ATTRIB_TEX(unit
),
400 legalTypes
, sizeMin
, 4,
401 size
, type
, stride
, GL_FALSE
, GL_FALSE
,
407 _mesa_EdgeFlagPointer(GLsizei stride
, const GLvoid
*ptr
)
409 const GLbitfield legalTypes
= UNSIGNED_BYTE_BIT
;
410 /* see table 2.4 edits in GL_EXT_gpu_shader4 spec: */
411 const GLboolean integer
= GL_TRUE
;
412 GET_CURRENT_CONTEXT(ctx
);
414 FLUSH_VERTICES(ctx
, 0);
416 update_array(ctx
, "glEdgeFlagPointer", VERT_ATTRIB_EDGEFLAG
,
418 1, GL_UNSIGNED_BYTE
, stride
, GL_FALSE
, integer
, ptr
);
423 _mesa_PointSizePointerOES(GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
425 const GLbitfield legalTypes
= (FLOAT_BIT
| FIXED_ES_BIT
);
426 GET_CURRENT_CONTEXT(ctx
);
428 FLUSH_VERTICES(ctx
, 0);
430 if (ctx
->API
!= API_OPENGLES
) {
431 _mesa_error(ctx
, GL_INVALID_OPERATION
,
432 "glPointSizePointer(ES 1.x only)");
436 update_array(ctx
, "glPointSizePointer", VERT_ATTRIB_POINT_SIZE
,
438 1, type
, stride
, GL_FALSE
, GL_FALSE
, ptr
);
443 * Set a generic vertex attribute array.
444 * Note that these arrays DO NOT alias the conventional GL vertex arrays
445 * (position, normal, color, fog, texcoord, etc).
448 _mesa_VertexAttribPointer(GLuint index
, GLint size
, GLenum type
,
449 GLboolean normalized
,
450 GLsizei stride
, const GLvoid
*ptr
)
452 const GLbitfield legalTypes
= (BYTE_BIT
| UNSIGNED_BYTE_BIT
|
453 SHORT_BIT
| UNSIGNED_SHORT_BIT
|
454 INT_BIT
| UNSIGNED_INT_BIT
|
455 HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
|
456 FIXED_ES_BIT
| FIXED_GL_BIT
|
457 UNSIGNED_INT_2_10_10_10_REV_BIT
|
458 INT_2_10_10_10_REV_BIT
);
459 GET_CURRENT_CONTEXT(ctx
);
461 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
462 _mesa_error(ctx
, GL_INVALID_VALUE
, "glVertexAttribPointerARB(index)");
466 update_array(ctx
, "glVertexAttribPointer", VERT_ATTRIB_GENERIC(index
),
467 legalTypes
, 1, BGRA_OR_4
,
468 size
, type
, stride
, normalized
, GL_FALSE
, ptr
);
473 * GL_EXT_gpu_shader4 / GL 3.0.
474 * Set an integer-valued vertex attribute array.
475 * Note that these arrays DO NOT alias the conventional GL vertex arrays
476 * (position, normal, color, fog, texcoord, etc).
479 _mesa_VertexAttribIPointer(GLuint index
, GLint size
, GLenum type
,
480 GLsizei stride
, const GLvoid
*ptr
)
482 const GLbitfield legalTypes
= (BYTE_BIT
| UNSIGNED_BYTE_BIT
|
483 SHORT_BIT
| UNSIGNED_SHORT_BIT
|
484 INT_BIT
| UNSIGNED_INT_BIT
);
485 const GLboolean normalized
= GL_FALSE
;
486 const GLboolean integer
= GL_TRUE
;
487 GET_CURRENT_CONTEXT(ctx
);
489 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
490 _mesa_error(ctx
, GL_INVALID_VALUE
, "glVertexAttribIPointer(index)");
494 update_array(ctx
, "glVertexAttribIPointer", VERT_ATTRIB_GENERIC(index
),
496 size
, type
, stride
, normalized
, integer
, ptr
);
502 _mesa_EnableVertexAttribArray(GLuint index
)
504 struct gl_array_object
*arrayObj
;
505 GET_CURRENT_CONTEXT(ctx
);
507 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
508 _mesa_error(ctx
, GL_INVALID_VALUE
,
509 "glEnableVertexAttribArrayARB(index)");
513 arrayObj
= ctx
->Array
.ArrayObj
;
515 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(arrayObj
->VertexAttrib
));
517 if (!arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
) {
518 /* was disabled, now being enabled */
519 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
520 arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
= GL_TRUE
;
521 arrayObj
->_Enabled
|= VERT_BIT_GENERIC(index
);
527 _mesa_DisableVertexAttribArray(GLuint index
)
529 struct gl_array_object
*arrayObj
;
530 GET_CURRENT_CONTEXT(ctx
);
532 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
533 _mesa_error(ctx
, GL_INVALID_VALUE
,
534 "glDisableVertexAttribArrayARB(index)");
538 arrayObj
= ctx
->Array
.ArrayObj
;
540 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(arrayObj
->VertexAttrib
));
542 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
) {
543 /* was enabled, now being disabled */
544 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
545 arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
= GL_FALSE
;
546 arrayObj
->_Enabled
&= ~VERT_BIT_GENERIC(index
);
552 * Return info for a vertex attribute array (no alias with legacy
553 * vertex attributes (pos, normal, color, etc)). This function does
554 * not handle the 4-element GL_CURRENT_VERTEX_ATTRIB_ARB query.
557 get_vertex_array_attrib(struct gl_context
*ctx
, GLuint index
, GLenum pname
,
560 const struct gl_client_array
*array
;
562 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
563 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(index=%u)", caller
, index
);
567 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
569 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)];
572 case GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB
:
573 return array
->Enabled
;
574 case GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB
:
576 case GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB
:
577 return array
->Stride
;
578 case GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB
:
580 case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB
:
581 return array
->Normalized
;
582 case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING_ARB
:
583 return array
->BufferObj
->Name
;
584 case GL_VERTEX_ATTRIB_ARRAY_INTEGER
:
585 if ((_mesa_is_desktop_gl(ctx
)
586 && (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
))
587 || _mesa_is_gles3(ctx
)) {
588 return array
->Integer
;
591 case GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ARB
:
592 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_instanced_arrays
)
593 || _mesa_is_gles3(ctx
)) {
594 return array
->InstanceDivisor
;
602 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", caller
, pname
);
607 static const GLfloat
*
608 get_current_attrib(struct gl_context
*ctx
, GLuint index
, const char *function
)
611 /* In OpenGL 3.1 attribute 0 becomes non-magic, just like in OpenGL ES
612 * 2.0. Note that we cannot just check for API_OPENGL_CORE here because
613 * that will erroneously allow this usage in a 3.0 forward-compatible
616 if ((ctx
->API
!= API_OPENGL_CORE
|| ctx
->Version
< 31)
617 && ctx
->API
!= API_OPENGLES2
) {
618 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(index==0)", function
);
622 else if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
623 _mesa_error(ctx
, GL_INVALID_VALUE
,
624 "%s(index>=GL_MAX_VERTEX_ATTRIBS)", function
);
628 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
630 FLUSH_CURRENT(ctx
, 0);
631 return ctx
->Current
.Attrib
[VERT_ATTRIB_GENERIC(index
)];
635 _mesa_GetVertexAttribfv(GLuint index
, GLenum pname
, GLfloat
*params
)
637 GET_CURRENT_CONTEXT(ctx
);
639 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
640 const GLfloat
*v
= get_current_attrib(ctx
, index
, "glGetVertexAttribfv");
646 params
[0] = (GLfloat
) get_vertex_array_attrib(ctx
, index
, pname
,
647 "glGetVertexAttribfv");
653 _mesa_GetVertexAttribdv(GLuint index
, GLenum pname
, GLdouble
*params
)
655 GET_CURRENT_CONTEXT(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
);
678 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
679 const GLfloat
*v
= get_current_attrib(ctx
, index
, "glGetVertexAttribiv");
681 /* XXX should floats in[0,1] be scaled to full int range? */
682 params
[0] = (GLint
) v
[0];
683 params
[1] = (GLint
) v
[1];
684 params
[2] = (GLint
) v
[2];
685 params
[3] = (GLint
) v
[3];
689 params
[0] = (GLint
) get_vertex_array_attrib(ctx
, index
, pname
,
690 "glGetVertexAttribiv");
697 _mesa_GetVertexAttribIiv(GLuint index
, GLenum pname
, GLint
*params
)
699 GET_CURRENT_CONTEXT(ctx
);
701 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
702 const GLint
*v
= (const GLint
*)
703 get_current_attrib(ctx
, index
, "glGetVertexAttribIiv");
709 params
[0] = (GLint
) get_vertex_array_attrib(ctx
, index
, pname
,
710 "glGetVertexAttribIiv");
717 _mesa_GetVertexAttribIuiv(GLuint index
, GLenum pname
, GLuint
*params
)
719 GET_CURRENT_CONTEXT(ctx
);
721 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
722 const GLuint
*v
= (const GLuint
*)
723 get_current_attrib(ctx
, index
, "glGetVertexAttribIuiv");
729 params
[0] = get_vertex_array_attrib(ctx
, index
, pname
,
730 "glGetVertexAttribIuiv");
736 _mesa_GetVertexAttribPointerv(GLuint index
, GLenum pname
, GLvoid
**pointer
)
738 GET_CURRENT_CONTEXT(ctx
);
740 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
741 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetVertexAttribPointerARB(index)");
745 if (pname
!= GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB
) {
746 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetVertexAttribPointerARB(pname)");
750 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
752 *pointer
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Ptr
;
757 _mesa_VertexPointerEXT(GLint size
, GLenum type
, GLsizei stride
,
758 GLsizei count
, const GLvoid
*ptr
)
761 _mesa_VertexPointer(size
, type
, stride
, ptr
);
766 _mesa_NormalPointerEXT(GLenum type
, GLsizei stride
, GLsizei count
,
770 _mesa_NormalPointer(type
, stride
, ptr
);
775 _mesa_ColorPointerEXT(GLint size
, GLenum type
, GLsizei stride
, GLsizei count
,
779 _mesa_ColorPointer(size
, type
, stride
, ptr
);
784 _mesa_IndexPointerEXT(GLenum type
, GLsizei stride
, GLsizei count
,
788 _mesa_IndexPointer(type
, stride
, ptr
);
793 _mesa_TexCoordPointerEXT(GLint size
, GLenum type
, GLsizei stride
,
794 GLsizei count
, const GLvoid
*ptr
)
797 _mesa_TexCoordPointer(size
, type
, stride
, ptr
);
802 _mesa_EdgeFlagPointerEXT(GLsizei stride
, GLsizei count
, const GLboolean
*ptr
)
805 _mesa_EdgeFlagPointer(stride
, ptr
);
810 _mesa_InterleavedArrays(GLenum format
, GLsizei stride
, const GLvoid
*pointer
)
812 GET_CURRENT_CONTEXT(ctx
);
813 GLboolean tflag
, cflag
, nflag
; /* enable/disable flags */
814 GLint tcomps
, ccomps
, vcomps
; /* components per texcoord, color, vertex */
815 GLenum ctype
= 0; /* color type */
816 GLint coffset
= 0, noffset
= 0, voffset
;/* color, normal, vertex offsets */
817 const GLint toffset
= 0; /* always zero */
818 GLint defstride
; /* default stride */
821 FLUSH_VERTICES(ctx
, 0);
824 c
= f
* ((4 * sizeof(GLubyte
) + (f
- 1)) / f
);
827 _mesa_error( ctx
, GL_INVALID_VALUE
, "glInterleavedArrays(stride)" );
833 tflag
= GL_FALSE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
834 tcomps
= 0; ccomps
= 0; vcomps
= 2;
839 tflag
= GL_FALSE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
840 tcomps
= 0; ccomps
= 0; vcomps
= 3;
845 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
846 tcomps
= 0; ccomps
= 4; vcomps
= 2;
847 ctype
= GL_UNSIGNED_BYTE
;
853 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
854 tcomps
= 0; ccomps
= 4; vcomps
= 3;
855 ctype
= GL_UNSIGNED_BYTE
;
861 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
862 tcomps
= 0; ccomps
= 3; vcomps
= 3;
869 tflag
= GL_FALSE
; cflag
= GL_FALSE
; nflag
= GL_TRUE
;
870 tcomps
= 0; ccomps
= 0; vcomps
= 3;
876 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_TRUE
;
877 tcomps
= 0; ccomps
= 4; vcomps
= 3;
885 tflag
= GL_TRUE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
886 tcomps
= 2; ccomps
= 0; vcomps
= 3;
891 tflag
= GL_TRUE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
892 tcomps
= 4; ccomps
= 0; vcomps
= 4;
896 case GL_T2F_C4UB_V3F
:
897 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
898 tcomps
= 2; ccomps
= 4; vcomps
= 3;
899 ctype
= GL_UNSIGNED_BYTE
;
905 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
906 tcomps
= 2; ccomps
= 3; vcomps
= 3;
913 tflag
= GL_TRUE
; cflag
= GL_FALSE
; nflag
= GL_TRUE
;
914 tcomps
= 2; ccomps
= 0; vcomps
= 3;
919 case GL_T2F_C4F_N3F_V3F
:
920 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_TRUE
;
921 tcomps
= 2; ccomps
= 4; vcomps
= 3;
928 case GL_T4F_C4F_N3F_V4F
:
929 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_TRUE
;
930 tcomps
= 4; ccomps
= 4; vcomps
= 4;
938 _mesa_error( ctx
, GL_INVALID_ENUM
, "glInterleavedArrays(format)" );
946 _mesa_DisableClientState( GL_EDGE_FLAG_ARRAY
);
947 _mesa_DisableClientState( GL_INDEX_ARRAY
);
948 /* XXX also disable secondary color and generic arrays? */
952 _mesa_EnableClientState( GL_TEXTURE_COORD_ARRAY
);
953 _mesa_TexCoordPointer( tcomps
, GL_FLOAT
, stride
,
954 (GLubyte
*) pointer
+ toffset
);
957 _mesa_DisableClientState( GL_TEXTURE_COORD_ARRAY
);
962 _mesa_EnableClientState( GL_COLOR_ARRAY
);
963 _mesa_ColorPointer( ccomps
, ctype
, stride
,
964 (GLubyte
*) pointer
+ coffset
);
967 _mesa_DisableClientState( GL_COLOR_ARRAY
);
973 _mesa_EnableClientState( GL_NORMAL_ARRAY
);
974 _mesa_NormalPointer( GL_FLOAT
, stride
, (GLubyte
*) pointer
+ noffset
);
977 _mesa_DisableClientState( GL_NORMAL_ARRAY
);
981 _mesa_EnableClientState( GL_VERTEX_ARRAY
);
982 _mesa_VertexPointer( vcomps
, GL_FLOAT
, stride
,
983 (GLubyte
*) pointer
+ voffset
);
988 _mesa_LockArraysEXT(GLint first
, GLsizei count
)
990 GET_CURRENT_CONTEXT(ctx
);
992 FLUSH_VERTICES(ctx
, 0);
994 if (MESA_VERBOSE
& VERBOSE_API
)
995 _mesa_debug(ctx
, "glLockArrays %d %d\n", first
, count
);
998 _mesa_error( ctx
, GL_INVALID_VALUE
, "glLockArraysEXT(first)" );
1002 _mesa_error( ctx
, GL_INVALID_VALUE
, "glLockArraysEXT(count)" );
1005 if (ctx
->Array
.LockCount
!= 0) {
1006 _mesa_error( ctx
, GL_INVALID_OPERATION
, "glLockArraysEXT(reentry)" );
1010 ctx
->Array
.LockFirst
= first
;
1011 ctx
->Array
.LockCount
= count
;
1013 ctx
->NewState
|= _NEW_ARRAY
;
1018 _mesa_UnlockArraysEXT( void )
1020 GET_CURRENT_CONTEXT(ctx
);
1022 FLUSH_VERTICES(ctx
, 0);
1024 if (MESA_VERBOSE
& VERBOSE_API
)
1025 _mesa_debug(ctx
, "glUnlockArrays\n");
1027 if (ctx
->Array
.LockCount
== 0) {
1028 _mesa_error( ctx
, GL_INVALID_OPERATION
, "glUnlockArraysEXT(reexit)" );
1032 ctx
->Array
.LockFirst
= 0;
1033 ctx
->Array
.LockCount
= 0;
1034 ctx
->NewState
|= _NEW_ARRAY
;
1038 /* GL_EXT_multi_draw_arrays */
1040 _mesa_MultiDrawArrays( GLenum mode
, const GLint
*first
,
1041 const GLsizei
*count
, GLsizei primcount
)
1043 GET_CURRENT_CONTEXT(ctx
);
1046 FLUSH_VERTICES(ctx
, 0);
1048 for (i
= 0; i
< primcount
; i
++) {
1050 CALL_DrawArrays(ctx
->Exec
, (mode
, first
[i
], count
[i
]));
1056 /* GL_IBM_multimode_draw_arrays */
1058 _mesa_MultiModeDrawArraysIBM( const GLenum
* mode
, const GLint
* first
,
1059 const GLsizei
* count
,
1060 GLsizei primcount
, GLint modestride
)
1062 GET_CURRENT_CONTEXT(ctx
);
1065 FLUSH_VERTICES(ctx
, 0);
1067 for ( i
= 0 ; i
< primcount
; i
++ ) {
1068 if ( count
[i
] > 0 ) {
1069 GLenum m
= *((GLenum
*) ((GLubyte
*) mode
+ i
* modestride
));
1070 CALL_DrawArrays(ctx
->Exec
, ( m
, first
[i
], count
[i
] ));
1076 /* GL_IBM_multimode_draw_arrays */
1078 _mesa_MultiModeDrawElementsIBM( const GLenum
* mode
, const GLsizei
* count
,
1079 GLenum type
, const GLvoid
* const * indices
,
1080 GLsizei primcount
, GLint modestride
)
1082 GET_CURRENT_CONTEXT(ctx
);
1085 FLUSH_VERTICES(ctx
, 0);
1087 /* XXX not sure about ARB_vertex_buffer_object handling here */
1089 for ( i
= 0 ; i
< primcount
; i
++ ) {
1090 if ( count
[i
] > 0 ) {
1091 GLenum m
= *((GLenum
*) ((GLubyte
*) mode
+ i
* modestride
));
1092 CALL_DrawElements(ctx
->Exec
, ( m
, count
[i
], type
, indices
[i
] ));
1099 * GL_NV_primitive_restart and GL 3.1
1102 _mesa_PrimitiveRestartIndex(GLuint index
)
1104 GET_CURRENT_CONTEXT(ctx
);
1106 if (!ctx
->Extensions
.NV_primitive_restart
&& ctx
->Version
< 31) {
1107 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glPrimitiveRestartIndexNV()");
1111 if (ctx
->Array
.RestartIndex
!= index
) {
1112 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
1113 ctx
->Array
.RestartIndex
= index
;
1119 * See GL_ARB_instanced_arrays.
1120 * Note that the instance divisor only applies to generic arrays, not
1121 * the legacy vertex arrays.
1124 _mesa_VertexAttribDivisor(GLuint index
, GLuint divisor
)
1126 struct gl_client_array
*array
;
1127 GET_CURRENT_CONTEXT(ctx
);
1129 if (!ctx
->Extensions
.ARB_instanced_arrays
) {
1130 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glVertexAttribDivisor()");
1134 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
1135 _mesa_error(ctx
, GL_INVALID_VALUE
, "glVertexAttribDivisor(index = %u)",
1140 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
1142 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)];
1143 if (array
->InstanceDivisor
!= divisor
) {
1144 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
1145 array
->InstanceDivisor
= divisor
;
1151 _mesa_primitive_restart_index(const struct gl_context
*ctx
, GLenum ib_type
)
1153 /* From the OpenGL 4.3 core specification, page 302:
1154 * "If both PRIMITIVE_RESTART and PRIMITIVE_RESTART_FIXED_INDEX are
1155 * enabled, the index value determined by PRIMITIVE_RESTART_FIXED_INDEX
1158 if (ctx
->Array
.PrimitiveRestartFixedIndex
) {
1160 case GL_UNSIGNED_BYTE
:
1162 case GL_UNSIGNED_SHORT
:
1164 case GL_UNSIGNED_INT
:
1167 assert(!"_mesa_primitive_restart_index: Invalid index buffer type.");
1171 return ctx
->Array
.RestartIndex
;
1176 * Copy one client vertex array to another.
1179 _mesa_copy_client_array(struct gl_context
*ctx
,
1180 struct gl_client_array
*dst
,
1181 struct gl_client_array
*src
)
1183 dst
->Size
= src
->Size
;
1184 dst
->Type
= src
->Type
;
1185 dst
->Format
= src
->Format
;
1186 dst
->Stride
= src
->Stride
;
1187 dst
->StrideB
= src
->StrideB
;
1188 dst
->Ptr
= src
->Ptr
;
1189 dst
->Enabled
= src
->Enabled
;
1190 dst
->Normalized
= src
->Normalized
;
1191 dst
->Integer
= src
->Integer
;
1192 dst
->InstanceDivisor
= src
->InstanceDivisor
;
1193 dst
->_ElementSize
= src
->_ElementSize
;
1194 _mesa_reference_buffer_object(ctx
, &dst
->BufferObj
, src
->BufferObj
);
1195 dst
->_MaxElement
= src
->_MaxElement
;
1201 * Print vertex array's fields.
1204 print_array(const char *name
, GLint index
, const struct gl_client_array
*array
)
1207 printf(" %s[%d]: ", name
, index
);
1209 printf(" %s: ", name
);
1210 printf("Ptr=%p, Type=0x%x, Size=%d, ElemSize=%u, Stride=%d, Buffer=%u(Size %lu), MaxElem=%u\n",
1211 array
->Ptr
, array
->Type
, array
->Size
,
1212 array
->_ElementSize
, array
->StrideB
,
1213 array
->BufferObj
->Name
, (unsigned long) array
->BufferObj
->Size
,
1214 array
->_MaxElement
);
1219 * Print current vertex object/array info. For debug.
1222 _mesa_print_arrays(struct gl_context
*ctx
)
1224 struct gl_array_object
*arrayObj
= ctx
->Array
.ArrayObj
;
1227 _mesa_update_array_object_max_element(ctx
, arrayObj
);
1229 printf("Array Object %u\n", arrayObj
->Name
);
1230 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_POS
].Enabled
)
1231 print_array("Vertex", -1, &arrayObj
->VertexAttrib
[VERT_ATTRIB_POS
]);
1232 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_NORMAL
].Enabled
)
1233 print_array("Normal", -1, &arrayObj
->VertexAttrib
[VERT_ATTRIB_NORMAL
]);
1234 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR0
].Enabled
)
1235 print_array("Color", -1, &arrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR0
]);
1236 for (i
= 0; i
< ctx
->Const
.MaxTextureCoordUnits
; i
++)
1237 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(i
)].Enabled
)
1238 print_array("TexCoord", i
, &arrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(i
)]);
1239 for (i
= 0; i
< VERT_ATTRIB_GENERIC_MAX
; i
++)
1240 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(i
)].Enabled
)
1241 print_array("Attrib", i
, &arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(i
)]);
1242 printf(" _MaxElement = %u\n", arrayObj
->_MaxElement
);
1247 * Initialize vertex array state for given context.
1250 _mesa_init_varray(struct gl_context
*ctx
)
1252 ctx
->Array
.DefaultArrayObj
= ctx
->Driver
.NewArrayObject(ctx
, 0);
1253 _mesa_reference_array_object(ctx
, &ctx
->Array
.ArrayObj
,
1254 ctx
->Array
.DefaultArrayObj
);
1255 ctx
->Array
.ActiveTexture
= 0; /* GL_ARB_multitexture */
1257 ctx
->Array
.Objects
= _mesa_NewHashTable();
1262 * Callback for deleting an array object. Called by _mesa_HashDeleteAll().
1265 delete_arrayobj_cb(GLuint id
, void *data
, void *userData
)
1267 struct gl_array_object
*arrayObj
= (struct gl_array_object
*) data
;
1268 struct gl_context
*ctx
= (struct gl_context
*) userData
;
1269 _mesa_delete_array_object(ctx
, arrayObj
);
1274 * Free vertex array state for given context.
1277 _mesa_free_varray_data(struct gl_context
*ctx
)
1279 _mesa_HashDeleteAll(ctx
->Array
.Objects
, delete_arrayobj_cb
, ctx
);
1280 _mesa_DeleteHashTable(ctx
->Array
.Objects
);