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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
22 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
23 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
24 * OTHER DEALINGS IN THE SOFTWARE.
30 #include "bufferobj.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 legalTypesMask
&= ~(FIXED_GL_BIT
| DOUBLE_BIT
);
156 /* GL_INT and GL_UNSIGNED_INT data is not allowed in OpenGL ES until
157 * 3.0. The 2_10_10_10 types are added in OpenGL ES 3.0 or
158 * GL_OES_vertex_type_10_10_10_2. GL_HALF_FLOAT data is not allowed
159 * until 3.0 or with the GL_OES_vertex_half float extension, which isn't
160 * quite as trivial as we'd like because it uses a different enum value
161 * for GL_HALF_FLOAT_OES.
163 if (ctx
->Version
< 30) {
164 legalTypesMask
&= ~(UNSIGNED_INT_BIT
166 | UNSIGNED_INT_2_10_10_10_REV_BIT
167 | 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_bytes_per_vertex_attrib(size
, type
);
255 assert(elementSize
!= -1);
257 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[attrib
];
260 array
->Format
= format
;
261 array
->Stride
= stride
;
262 array
->StrideB
= stride
? stride
: elementSize
;
263 array
->Normalized
= normalized
;
264 array
->Integer
= integer
;
265 array
->Ptr
= (const GLubyte
*) ptr
;
266 array
->_ElementSize
= elementSize
;
268 _mesa_reference_buffer_object(ctx
, &array
->BufferObj
,
269 ctx
->Array
.ArrayBufferObj
);
271 ctx
->NewState
|= _NEW_ARRAY
;
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
);
286 FLUSH_VERTICES(ctx
, 0);
288 update_array(ctx
, "glVertexPointer", VERT_ATTRIB_POS
,
290 size
, type
, stride
, GL_FALSE
, GL_FALSE
, ptr
);
295 _mesa_NormalPointer(GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
297 GET_CURRENT_CONTEXT(ctx
);
298 const GLbitfield legalTypes
= (ctx
->API
== API_OPENGLES
)
299 ? (BYTE_BIT
| SHORT_BIT
| FLOAT_BIT
| FIXED_ES_BIT
)
300 : (BYTE_BIT
| SHORT_BIT
| INT_BIT
|
301 HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
|
302 UNSIGNED_INT_2_10_10_10_REV_BIT
|
303 INT_2_10_10_10_REV_BIT
);
305 FLUSH_VERTICES(ctx
, 0);
307 update_array(ctx
, "glNormalPointer", VERT_ATTRIB_NORMAL
,
309 3, type
, stride
, GL_TRUE
, GL_FALSE
, ptr
);
314 _mesa_ColorPointer(GLint size
, GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
316 GET_CURRENT_CONTEXT(ctx
);
317 const GLbitfield legalTypes
= (ctx
->API
== API_OPENGLES
)
318 ? (UNSIGNED_BYTE_BIT
| HALF_BIT
| FLOAT_BIT
| FIXED_ES_BIT
)
319 : (BYTE_BIT
| UNSIGNED_BYTE_BIT
|
320 SHORT_BIT
| UNSIGNED_SHORT_BIT
|
321 INT_BIT
| UNSIGNED_INT_BIT
|
322 HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
|
323 UNSIGNED_INT_2_10_10_10_REV_BIT
|
324 INT_2_10_10_10_REV_BIT
);
325 const GLint sizeMin
= (ctx
->API
== API_OPENGLES
) ? 4 : 3;
327 FLUSH_VERTICES(ctx
, 0);
329 update_array(ctx
, "glColorPointer", VERT_ATTRIB_COLOR0
,
330 legalTypes
, sizeMin
, BGRA_OR_4
,
331 size
, type
, stride
, GL_TRUE
, GL_FALSE
, ptr
);
336 _mesa_FogCoordPointer(GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
338 const GLbitfield legalTypes
= (HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
);
339 GET_CURRENT_CONTEXT(ctx
);
341 FLUSH_VERTICES(ctx
, 0);
343 update_array(ctx
, "glFogCoordPointer", VERT_ATTRIB_FOG
,
345 1, type
, stride
, GL_FALSE
, GL_FALSE
, ptr
);
350 _mesa_IndexPointer(GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
352 const GLbitfield legalTypes
= (UNSIGNED_BYTE_BIT
| SHORT_BIT
| INT_BIT
|
353 FLOAT_BIT
| DOUBLE_BIT
);
354 GET_CURRENT_CONTEXT(ctx
);
356 FLUSH_VERTICES(ctx
, 0);
358 update_array(ctx
, "glIndexPointer", VERT_ATTRIB_COLOR_INDEX
,
360 1, type
, stride
, GL_FALSE
, GL_FALSE
, ptr
);
365 _mesa_SecondaryColorPointer(GLint size
, GLenum type
,
366 GLsizei stride
, const GLvoid
*ptr
)
368 const GLbitfield legalTypes
= (BYTE_BIT
| UNSIGNED_BYTE_BIT
|
369 SHORT_BIT
| UNSIGNED_SHORT_BIT
|
370 INT_BIT
| UNSIGNED_INT_BIT
|
371 HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
|
372 UNSIGNED_INT_2_10_10_10_REV_BIT
|
373 INT_2_10_10_10_REV_BIT
);
374 GET_CURRENT_CONTEXT(ctx
);
376 FLUSH_VERTICES(ctx
, 0);
378 update_array(ctx
, "glSecondaryColorPointer", VERT_ATTRIB_COLOR1
,
379 legalTypes
, 3, BGRA_OR_4
,
380 size
, type
, stride
, GL_TRUE
, GL_FALSE
, ptr
);
385 _mesa_TexCoordPointer(GLint size
, GLenum type
, GLsizei stride
,
388 GET_CURRENT_CONTEXT(ctx
);
389 GLbitfield legalTypes
= (ctx
->API
== API_OPENGLES
)
390 ? (BYTE_BIT
| SHORT_BIT
| FLOAT_BIT
| FIXED_ES_BIT
)
391 : (SHORT_BIT
| INT_BIT
|
392 HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
|
393 UNSIGNED_INT_2_10_10_10_REV_BIT
|
394 INT_2_10_10_10_REV_BIT
);
395 const GLint sizeMin
= (ctx
->API
== API_OPENGLES
) ? 2 : 1;
396 const GLuint unit
= ctx
->Array
.ActiveTexture
;
398 FLUSH_VERTICES(ctx
, 0);
400 update_array(ctx
, "glTexCoordPointer", VERT_ATTRIB_TEX(unit
),
401 legalTypes
, sizeMin
, 4,
402 size
, type
, stride
, GL_FALSE
, GL_FALSE
,
408 _mesa_EdgeFlagPointer(GLsizei stride
, const GLvoid
*ptr
)
410 const GLbitfield legalTypes
= UNSIGNED_BYTE_BIT
;
411 /* see table 2.4 edits in GL_EXT_gpu_shader4 spec: */
412 const GLboolean integer
= GL_TRUE
;
413 GET_CURRENT_CONTEXT(ctx
);
415 FLUSH_VERTICES(ctx
, 0);
417 update_array(ctx
, "glEdgeFlagPointer", VERT_ATTRIB_EDGEFLAG
,
419 1, GL_UNSIGNED_BYTE
, stride
, GL_FALSE
, integer
, ptr
);
424 _mesa_PointSizePointerOES(GLenum type
, GLsizei stride
, const GLvoid
*ptr
)
426 const GLbitfield legalTypes
= (FLOAT_BIT
| FIXED_ES_BIT
);
427 GET_CURRENT_CONTEXT(ctx
);
429 FLUSH_VERTICES(ctx
, 0);
431 if (ctx
->API
!= API_OPENGLES
) {
432 _mesa_error(ctx
, GL_INVALID_OPERATION
,
433 "glPointSizePointer(ES 1.x only)");
437 update_array(ctx
, "glPointSizePointer", VERT_ATTRIB_POINT_SIZE
,
439 1, type
, stride
, GL_FALSE
, GL_FALSE
, ptr
);
444 * Set a generic vertex attribute array.
445 * Note that these arrays DO NOT alias the conventional GL vertex arrays
446 * (position, normal, color, fog, texcoord, etc).
449 _mesa_VertexAttribPointer(GLuint index
, GLint size
, GLenum type
,
450 GLboolean normalized
,
451 GLsizei stride
, const GLvoid
*ptr
)
453 const GLbitfield legalTypes
= (BYTE_BIT
| UNSIGNED_BYTE_BIT
|
454 SHORT_BIT
| UNSIGNED_SHORT_BIT
|
455 INT_BIT
| UNSIGNED_INT_BIT
|
456 HALF_BIT
| FLOAT_BIT
| DOUBLE_BIT
|
457 FIXED_ES_BIT
| FIXED_GL_BIT
|
458 UNSIGNED_INT_2_10_10_10_REV_BIT
|
459 INT_2_10_10_10_REV_BIT
);
460 GET_CURRENT_CONTEXT(ctx
);
462 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
463 _mesa_error(ctx
, GL_INVALID_VALUE
, "glVertexAttribPointerARB(index)");
467 update_array(ctx
, "glVertexAttribPointer", VERT_ATTRIB_GENERIC(index
),
468 legalTypes
, 1, BGRA_OR_4
,
469 size
, type
, stride
, normalized
, GL_FALSE
, ptr
);
474 * GL_EXT_gpu_shader4 / GL 3.0.
475 * Set an integer-valued vertex attribute array.
476 * Note that these arrays DO NOT alias the conventional GL vertex arrays
477 * (position, normal, color, fog, texcoord, etc).
480 _mesa_VertexAttribIPointer(GLuint index
, GLint size
, GLenum type
,
481 GLsizei stride
, const GLvoid
*ptr
)
483 const GLbitfield legalTypes
= (BYTE_BIT
| UNSIGNED_BYTE_BIT
|
484 SHORT_BIT
| UNSIGNED_SHORT_BIT
|
485 INT_BIT
| UNSIGNED_INT_BIT
);
486 const GLboolean normalized
= GL_FALSE
;
487 const GLboolean integer
= GL_TRUE
;
488 GET_CURRENT_CONTEXT(ctx
);
490 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
491 _mesa_error(ctx
, GL_INVALID_VALUE
, "glVertexAttribIPointer(index)");
495 update_array(ctx
, "glVertexAttribIPointer", VERT_ATTRIB_GENERIC(index
),
497 size
, type
, stride
, normalized
, integer
, ptr
);
503 _mesa_EnableVertexAttribArray(GLuint index
)
505 struct gl_array_object
*arrayObj
;
506 GET_CURRENT_CONTEXT(ctx
);
508 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
509 _mesa_error(ctx
, GL_INVALID_VALUE
,
510 "glEnableVertexAttribArrayARB(index)");
514 arrayObj
= ctx
->Array
.ArrayObj
;
516 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(arrayObj
->VertexAttrib
));
518 if (!arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
) {
519 /* was disabled, now being enabled */
520 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
521 arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
= GL_TRUE
;
522 arrayObj
->_Enabled
|= VERT_BIT_GENERIC(index
);
528 _mesa_DisableVertexAttribArray(GLuint index
)
530 struct gl_array_object
*arrayObj
;
531 GET_CURRENT_CONTEXT(ctx
);
533 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
534 _mesa_error(ctx
, GL_INVALID_VALUE
,
535 "glDisableVertexAttribArrayARB(index)");
539 arrayObj
= ctx
->Array
.ArrayObj
;
541 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(arrayObj
->VertexAttrib
));
543 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
) {
544 /* was enabled, now being disabled */
545 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
546 arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Enabled
= GL_FALSE
;
547 arrayObj
->_Enabled
&= ~VERT_BIT_GENERIC(index
);
553 * Return info for a vertex attribute array (no alias with legacy
554 * vertex attributes (pos, normal, color, etc)). This function does
555 * not handle the 4-element GL_CURRENT_VERTEX_ATTRIB_ARB query.
558 get_vertex_array_attrib(struct gl_context
*ctx
, GLuint index
, GLenum pname
,
561 const struct gl_client_array
*array
;
563 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
564 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(index=%u)", caller
, index
);
568 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
570 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)];
573 case GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB
:
574 return array
->Enabled
;
575 case GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB
:
577 case GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB
:
578 return array
->Stride
;
579 case GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB
:
581 case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB
:
582 return array
->Normalized
;
583 case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING_ARB
:
584 return array
->BufferObj
->Name
;
585 case GL_VERTEX_ATTRIB_ARRAY_INTEGER
:
586 if ((_mesa_is_desktop_gl(ctx
)
587 && (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
))
588 || _mesa_is_gles3(ctx
)) {
589 return array
->Integer
;
592 case GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ARB
:
593 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_instanced_arrays
)
594 || _mesa_is_gles3(ctx
)) {
595 return array
->InstanceDivisor
;
603 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", caller
, pname
);
608 static const GLfloat
*
609 get_current_attrib(struct gl_context
*ctx
, GLuint index
, const char *function
)
612 /* In OpenGL 3.1 attribute 0 becomes non-magic, just like in OpenGL ES
613 * 2.0. Note that we cannot just check for API_OPENGL_CORE here because
614 * that will erroneously allow this usage in a 3.0 forward-compatible
617 if ((ctx
->API
!= API_OPENGL_CORE
|| ctx
->Version
< 31)
618 && ctx
->API
!= API_OPENGLES2
) {
619 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(index==0)", function
);
623 else if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
624 _mesa_error(ctx
, GL_INVALID_VALUE
,
625 "%s(index>=GL_MAX_VERTEX_ATTRIBS)", function
);
629 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
631 FLUSH_CURRENT(ctx
, 0);
632 return ctx
->Current
.Attrib
[VERT_ATTRIB_GENERIC(index
)];
636 _mesa_GetVertexAttribfv(GLuint index
, GLenum pname
, GLfloat
*params
)
638 GET_CURRENT_CONTEXT(ctx
);
640 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
641 const GLfloat
*v
= get_current_attrib(ctx
, index
, "glGetVertexAttribfv");
647 params
[0] = (GLfloat
) get_vertex_array_attrib(ctx
, index
, pname
,
648 "glGetVertexAttribfv");
654 _mesa_GetVertexAttribdv(GLuint index
, GLenum pname
, GLdouble
*params
)
656 GET_CURRENT_CONTEXT(ctx
);
658 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
659 const GLfloat
*v
= get_current_attrib(ctx
, index
, "glGetVertexAttribdv");
661 params
[0] = (GLdouble
) v
[0];
662 params
[1] = (GLdouble
) v
[1];
663 params
[2] = (GLdouble
) v
[2];
664 params
[3] = (GLdouble
) v
[3];
668 params
[0] = (GLdouble
) get_vertex_array_attrib(ctx
, index
, pname
,
669 "glGetVertexAttribdv");
675 _mesa_GetVertexAttribiv(GLuint index
, GLenum pname
, GLint
*params
)
677 GET_CURRENT_CONTEXT(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
);
702 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
703 const GLint
*v
= (const GLint
*)
704 get_current_attrib(ctx
, index
, "glGetVertexAttribIiv");
710 params
[0] = (GLint
) get_vertex_array_attrib(ctx
, index
, pname
,
711 "glGetVertexAttribIiv");
718 _mesa_GetVertexAttribIuiv(GLuint index
, GLenum pname
, GLuint
*params
)
720 GET_CURRENT_CONTEXT(ctx
);
722 if (pname
== GL_CURRENT_VERTEX_ATTRIB_ARB
) {
723 const GLuint
*v
= (const GLuint
*)
724 get_current_attrib(ctx
, index
, "glGetVertexAttribIuiv");
730 params
[0] = get_vertex_array_attrib(ctx
, index
, pname
,
731 "glGetVertexAttribIuiv");
737 _mesa_GetVertexAttribPointerv(GLuint index
, GLenum pname
, GLvoid
**pointer
)
739 GET_CURRENT_CONTEXT(ctx
);
741 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
742 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetVertexAttribPointerARB(index)");
746 if (pname
!= GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB
) {
747 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetVertexAttribPointerARB(pname)");
751 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
753 *pointer
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)].Ptr
;
758 _mesa_VertexPointerEXT(GLint size
, GLenum type
, GLsizei stride
,
759 GLsizei count
, const GLvoid
*ptr
)
762 _mesa_VertexPointer(size
, type
, stride
, ptr
);
767 _mesa_NormalPointerEXT(GLenum type
, GLsizei stride
, GLsizei count
,
771 _mesa_NormalPointer(type
, stride
, ptr
);
776 _mesa_ColorPointerEXT(GLint size
, GLenum type
, GLsizei stride
, GLsizei count
,
780 _mesa_ColorPointer(size
, type
, stride
, ptr
);
785 _mesa_IndexPointerEXT(GLenum type
, GLsizei stride
, GLsizei count
,
789 _mesa_IndexPointer(type
, stride
, ptr
);
794 _mesa_TexCoordPointerEXT(GLint size
, GLenum type
, GLsizei stride
,
795 GLsizei count
, const GLvoid
*ptr
)
798 _mesa_TexCoordPointer(size
, type
, stride
, ptr
);
803 _mesa_EdgeFlagPointerEXT(GLsizei stride
, GLsizei count
, const GLboolean
*ptr
)
806 _mesa_EdgeFlagPointer(stride
, ptr
);
811 _mesa_InterleavedArrays(GLenum format
, GLsizei stride
, const GLvoid
*pointer
)
813 GET_CURRENT_CONTEXT(ctx
);
814 GLboolean tflag
, cflag
, nflag
; /* enable/disable flags */
815 GLint tcomps
, ccomps
, vcomps
; /* components per texcoord, color, vertex */
816 GLenum ctype
= 0; /* color type */
817 GLint coffset
= 0, noffset
= 0, voffset
;/* color, normal, vertex offsets */
818 const GLint toffset
= 0; /* always zero */
819 GLint defstride
; /* default stride */
822 FLUSH_VERTICES(ctx
, 0);
825 c
= f
* ((4 * sizeof(GLubyte
) + (f
- 1)) / f
);
828 _mesa_error( ctx
, GL_INVALID_VALUE
, "glInterleavedArrays(stride)" );
834 tflag
= GL_FALSE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
835 tcomps
= 0; ccomps
= 0; vcomps
= 2;
840 tflag
= GL_FALSE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
841 tcomps
= 0; ccomps
= 0; vcomps
= 3;
846 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
847 tcomps
= 0; ccomps
= 4; vcomps
= 2;
848 ctype
= GL_UNSIGNED_BYTE
;
854 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
855 tcomps
= 0; ccomps
= 4; vcomps
= 3;
856 ctype
= GL_UNSIGNED_BYTE
;
862 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
863 tcomps
= 0; ccomps
= 3; vcomps
= 3;
870 tflag
= GL_FALSE
; cflag
= GL_FALSE
; nflag
= GL_TRUE
;
871 tcomps
= 0; ccomps
= 0; vcomps
= 3;
877 tflag
= GL_FALSE
; cflag
= GL_TRUE
; nflag
= GL_TRUE
;
878 tcomps
= 0; ccomps
= 4; vcomps
= 3;
886 tflag
= GL_TRUE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
887 tcomps
= 2; ccomps
= 0; vcomps
= 3;
892 tflag
= GL_TRUE
; cflag
= GL_FALSE
; nflag
= GL_FALSE
;
893 tcomps
= 4; ccomps
= 0; vcomps
= 4;
897 case GL_T2F_C4UB_V3F
:
898 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
899 tcomps
= 2; ccomps
= 4; vcomps
= 3;
900 ctype
= GL_UNSIGNED_BYTE
;
906 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_FALSE
;
907 tcomps
= 2; ccomps
= 3; vcomps
= 3;
914 tflag
= GL_TRUE
; cflag
= GL_FALSE
; nflag
= GL_TRUE
;
915 tcomps
= 2; ccomps
= 0; vcomps
= 3;
920 case GL_T2F_C4F_N3F_V3F
:
921 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_TRUE
;
922 tcomps
= 2; ccomps
= 4; vcomps
= 3;
929 case GL_T4F_C4F_N3F_V4F
:
930 tflag
= GL_TRUE
; cflag
= GL_TRUE
; nflag
= GL_TRUE
;
931 tcomps
= 4; ccomps
= 4; vcomps
= 4;
939 _mesa_error( ctx
, GL_INVALID_ENUM
, "glInterleavedArrays(format)" );
947 _mesa_DisableClientState( GL_EDGE_FLAG_ARRAY
);
948 _mesa_DisableClientState( GL_INDEX_ARRAY
);
949 /* XXX also disable secondary color and generic arrays? */
953 _mesa_EnableClientState( GL_TEXTURE_COORD_ARRAY
);
954 _mesa_TexCoordPointer( tcomps
, GL_FLOAT
, stride
,
955 (GLubyte
*) pointer
+ toffset
);
958 _mesa_DisableClientState( GL_TEXTURE_COORD_ARRAY
);
963 _mesa_EnableClientState( GL_COLOR_ARRAY
);
964 _mesa_ColorPointer( ccomps
, ctype
, stride
,
965 (GLubyte
*) pointer
+ coffset
);
968 _mesa_DisableClientState( GL_COLOR_ARRAY
);
974 _mesa_EnableClientState( GL_NORMAL_ARRAY
);
975 _mesa_NormalPointer( GL_FLOAT
, stride
, (GLubyte
*) pointer
+ noffset
);
978 _mesa_DisableClientState( GL_NORMAL_ARRAY
);
982 _mesa_EnableClientState( GL_VERTEX_ARRAY
);
983 _mesa_VertexPointer( vcomps
, GL_FLOAT
, stride
,
984 (GLubyte
*) pointer
+ voffset
);
989 _mesa_LockArraysEXT(GLint first
, GLsizei count
)
991 GET_CURRENT_CONTEXT(ctx
);
993 FLUSH_VERTICES(ctx
, 0);
995 if (MESA_VERBOSE
& VERBOSE_API
)
996 _mesa_debug(ctx
, "glLockArrays %d %d\n", first
, count
);
999 _mesa_error( ctx
, GL_INVALID_VALUE
, "glLockArraysEXT(first)" );
1003 _mesa_error( ctx
, GL_INVALID_VALUE
, "glLockArraysEXT(count)" );
1006 if (ctx
->Array
.LockCount
!= 0) {
1007 _mesa_error( ctx
, GL_INVALID_OPERATION
, "glLockArraysEXT(reentry)" );
1011 ctx
->Array
.LockFirst
= first
;
1012 ctx
->Array
.LockCount
= count
;
1014 ctx
->NewState
|= _NEW_ARRAY
;
1019 _mesa_UnlockArraysEXT( void )
1021 GET_CURRENT_CONTEXT(ctx
);
1023 FLUSH_VERTICES(ctx
, 0);
1025 if (MESA_VERBOSE
& VERBOSE_API
)
1026 _mesa_debug(ctx
, "glUnlockArrays\n");
1028 if (ctx
->Array
.LockCount
== 0) {
1029 _mesa_error( ctx
, GL_INVALID_OPERATION
, "glUnlockArraysEXT(reexit)" );
1033 ctx
->Array
.LockFirst
= 0;
1034 ctx
->Array
.LockCount
= 0;
1035 ctx
->NewState
|= _NEW_ARRAY
;
1039 /* GL_EXT_multi_draw_arrays */
1041 _mesa_MultiDrawArrays( GLenum mode
, const GLint
*first
,
1042 const GLsizei
*count
, GLsizei primcount
)
1044 GET_CURRENT_CONTEXT(ctx
);
1047 FLUSH_VERTICES(ctx
, 0);
1049 for (i
= 0; i
< primcount
; i
++) {
1051 CALL_DrawArrays(ctx
->Exec
, (mode
, first
[i
], count
[i
]));
1057 /* GL_IBM_multimode_draw_arrays */
1059 _mesa_MultiModeDrawArraysIBM( const GLenum
* mode
, const GLint
* first
,
1060 const GLsizei
* count
,
1061 GLsizei primcount
, GLint modestride
)
1063 GET_CURRENT_CONTEXT(ctx
);
1066 FLUSH_VERTICES(ctx
, 0);
1068 for ( i
= 0 ; i
< primcount
; i
++ ) {
1069 if ( count
[i
] > 0 ) {
1070 GLenum m
= *((GLenum
*) ((GLubyte
*) mode
+ i
* modestride
));
1071 CALL_DrawArrays(ctx
->Exec
, ( m
, first
[i
], count
[i
] ));
1077 /* GL_IBM_multimode_draw_arrays */
1079 _mesa_MultiModeDrawElementsIBM( const GLenum
* mode
, const GLsizei
* count
,
1080 GLenum type
, const GLvoid
* const * indices
,
1081 GLsizei primcount
, GLint modestride
)
1083 GET_CURRENT_CONTEXT(ctx
);
1086 FLUSH_VERTICES(ctx
, 0);
1088 /* XXX not sure about ARB_vertex_buffer_object handling here */
1090 for ( i
= 0 ; i
< primcount
; i
++ ) {
1091 if ( count
[i
] > 0 ) {
1092 GLenum m
= *((GLenum
*) ((GLubyte
*) mode
+ i
* modestride
));
1093 CALL_DrawElements(ctx
->Exec
, ( m
, count
[i
], type
, indices
[i
] ));
1100 * GL_NV_primitive_restart and GL 3.1
1103 _mesa_PrimitiveRestartIndex(GLuint index
)
1105 GET_CURRENT_CONTEXT(ctx
);
1107 if (!ctx
->Extensions
.NV_primitive_restart
&& ctx
->Version
< 31) {
1108 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glPrimitiveRestartIndexNV()");
1112 ctx
->Array
.RestartIndex
= index
;
1113 if (ctx
->Array
.PrimitiveRestart
&& ctx
->Array
._RestartIndex
!= index
) {
1114 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
1115 ctx
->Array
._RestartIndex
= index
;
1121 * See GL_ARB_instanced_arrays.
1122 * Note that the instance divisor only applies to generic arrays, not
1123 * the legacy vertex arrays.
1126 _mesa_VertexAttribDivisor(GLuint index
, GLuint divisor
)
1128 struct gl_client_array
*array
;
1129 GET_CURRENT_CONTEXT(ctx
);
1131 if (!ctx
->Extensions
.ARB_instanced_arrays
) {
1132 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glVertexAttribDivisor()");
1136 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
) {
1137 _mesa_error(ctx
, GL_INVALID_VALUE
, "glVertexAttribDivisor(index = %u)",
1142 ASSERT(VERT_ATTRIB_GENERIC(index
) < Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
1144 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(index
)];
1145 if (array
->InstanceDivisor
!= divisor
) {
1146 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
1147 array
->InstanceDivisor
= divisor
;
1154 * Copy one client vertex array to another.
1157 _mesa_copy_client_array(struct gl_context
*ctx
,
1158 struct gl_client_array
*dst
,
1159 struct gl_client_array
*src
)
1161 dst
->Size
= src
->Size
;
1162 dst
->Type
= src
->Type
;
1163 dst
->Format
= src
->Format
;
1164 dst
->Stride
= src
->Stride
;
1165 dst
->StrideB
= src
->StrideB
;
1166 dst
->Ptr
= src
->Ptr
;
1167 dst
->Enabled
= src
->Enabled
;
1168 dst
->Normalized
= src
->Normalized
;
1169 dst
->Integer
= src
->Integer
;
1170 dst
->InstanceDivisor
= src
->InstanceDivisor
;
1171 dst
->_ElementSize
= src
->_ElementSize
;
1172 _mesa_reference_buffer_object(ctx
, &dst
->BufferObj
, src
->BufferObj
);
1173 dst
->_MaxElement
= src
->_MaxElement
;
1179 * Print vertex array's fields.
1182 print_array(const char *name
, GLint index
, const struct gl_client_array
*array
)
1185 printf(" %s[%d]: ", name
, index
);
1187 printf(" %s: ", name
);
1188 printf("Ptr=%p, Type=0x%x, Size=%d, ElemSize=%u, Stride=%d, Buffer=%u(Size %lu), MaxElem=%u\n",
1189 array
->Ptr
, array
->Type
, array
->Size
,
1190 array
->_ElementSize
, array
->StrideB
,
1191 array
->BufferObj
->Name
, (unsigned long) array
->BufferObj
->Size
,
1192 array
->_MaxElement
);
1197 * Print current vertex object/array info. For debug.
1200 _mesa_print_arrays(struct gl_context
*ctx
)
1202 struct gl_array_object
*arrayObj
= ctx
->Array
.ArrayObj
;
1205 _mesa_update_array_object_max_element(ctx
, arrayObj
);
1207 printf("Array Object %u\n", arrayObj
->Name
);
1208 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_POS
].Enabled
)
1209 print_array("Vertex", -1, &arrayObj
->VertexAttrib
[VERT_ATTRIB_POS
]);
1210 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_NORMAL
].Enabled
)
1211 print_array("Normal", -1, &arrayObj
->VertexAttrib
[VERT_ATTRIB_NORMAL
]);
1212 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR0
].Enabled
)
1213 print_array("Color", -1, &arrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR0
]);
1214 for (i
= 0; i
< ctx
->Const
.MaxTextureCoordUnits
; i
++)
1215 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(i
)].Enabled
)
1216 print_array("TexCoord", i
, &arrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(i
)]);
1217 for (i
= 0; i
< VERT_ATTRIB_GENERIC_MAX
; i
++)
1218 if (arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(i
)].Enabled
)
1219 print_array("Attrib", i
, &arrayObj
->VertexAttrib
[VERT_ATTRIB_GENERIC(i
)]);
1220 printf(" _MaxElement = %u\n", arrayObj
->_MaxElement
);
1225 * Initialize vertex array state for given context.
1228 _mesa_init_varray(struct gl_context
*ctx
)
1230 ctx
->Array
.DefaultArrayObj
= ctx
->Driver
.NewArrayObject(ctx
, 0);
1231 _mesa_reference_array_object(ctx
, &ctx
->Array
.ArrayObj
,
1232 ctx
->Array
.DefaultArrayObj
);
1233 ctx
->Array
.ActiveTexture
= 0; /* GL_ARB_multitexture */
1235 ctx
->Array
.Objects
= _mesa_NewHashTable();
1240 * Callback for deleting an array object. Called by _mesa_HashDeleteAll().
1243 delete_arrayobj_cb(GLuint id
, void *data
, void *userData
)
1245 struct gl_array_object
*arrayObj
= (struct gl_array_object
*) data
;
1246 struct gl_context
*ctx
= (struct gl_context
*) userData
;
1247 _mesa_delete_array_object(ctx
, arrayObj
);
1252 * Free vertex array state for given context.
1255 _mesa_free_varray_data(struct gl_context
*ctx
)
1257 _mesa_HashDeleteAll(ctx
->Array
.Objects
, delete_arrayobj_cb
, ctx
);
1258 _mesa_DeleteHashTable(ctx
->Array
.Objects
);