2 * (C) Copyright IBM Corporation 2004, 2005
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sub license,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
20 * AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
22 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 #include "glxclient.h"
32 #include <GL/glxproto.h>
33 #include "glxextensions.h"
34 #include "indirect_vertex_array.h"
35 #include "indirect_va_private.h"
37 #define __GLX_PAD(n) (((n)+3) & ~3)
40 * \file indirect_vertex_array.c
41 * Implement GLX protocol for vertex arrays and vertex buffer objects.
43 * The most important function in this fill is \c fill_array_info_cache.
44 * The \c array_state_vector contains a cache of the ARRAY_INFO data sent
45 * in the DrawArrays protocol. Certain operations, such as enabling or
46 * disabling an array, can invalidate this cache. \c fill_array_info_cache
47 * fills-in this data. Additionally, it examines the enabled state and
48 * other factors to determine what "version" of DrawArrays protocoal can be
51 * Current, only two versions of DrawArrays protocol are implemented. The
52 * first version is the "none" protocol. This is the fallback when the
53 * server does not support GL 1.1 / EXT_vertex_arrays. It is implemented
54 * by sending batches of immediate mode commands that are equivalent to the
55 * DrawArrays protocol.
57 * The other protocol that is currently implemented is the "old" protocol.
58 * This is the GL 1.1 DrawArrays protocol. The only difference between GL
59 * 1.1 and EXT_vertex_arrays is the opcode used for the DrawArrays command.
60 * This protocol is called "old" because the ARB is in the process of
61 * defining a new protocol, which will probably be called wither "new" or
62 * "vbo", to support multiple texture coordinate arrays, generic attributes,
63 * and vertex buffer objects.
65 * \author Ian Romanick <idr@us.ibm.com>
68 static void emit_DrawArrays_none( GLenum mode
, GLint first
, GLsizei count
);
69 static void emit_DrawArrays_old ( GLenum mode
, GLint first
, GLsizei count
);
71 static void emit_DrawElements_none( GLenum mode
, GLsizei count
, GLenum type
,
72 const GLvoid
*indices
);
73 static void emit_DrawElements_old ( GLenum mode
, GLsizei count
, GLenum type
,
74 const GLvoid
*indices
);
77 static GLubyte
* emit_element_none( GLubyte
* dst
,
78 const struct array_state_vector
* arrays
, unsigned index
);
79 static GLubyte
* emit_element_old( GLubyte
* dst
,
80 const struct array_state_vector
* arrays
, unsigned index
);
81 static struct array_state
* get_array_entry(
82 const struct array_state_vector
* arrays
, GLenum key
, unsigned index
);
83 static void fill_array_info_cache( struct array_state_vector
* arrays
);
84 static GLboolean
validate_mode(__GLXcontext
*gc
, GLenum mode
);
85 static GLboolean
validate_count(__GLXcontext
*gc
, GLsizei count
);
86 static GLboolean
validate_type(__GLXcontext
*gc
, GLenum type
);
90 * Table of sizes, in bytes, of a GL types. All of the type enums are be in
91 * the range 0x1400 - 0x140F. That includes types added by extensions (i.e.,
92 * \c GL_HALF_FLOAT_NV). This elements of this table correspond to the
93 * type enums masked with 0x0f.
96 * \c GL_HALF_FLOAT_NV is not included. Neither are \c GL_2_BYTES,
97 * \c GL_3_BYTES, or \c GL_4_BYTES.
99 const GLuint __glXTypeSize_table
[16] = {
100 1, 1, 2, 2, 4, 4, 4, 0, 0, 0, 8, 0, 0, 0, 0, 0
106 * Initialize vertex array state of a GLX context.
108 * \param gc GLX context whose vertex array state is to be initialized.
111 * This function may only be called after __GLXcontext::gl_extension_bits,
112 * __GLXcontext::server_minor, and __GLXcontext::server_major have been
113 * initialized. These values are used to determine what vertex arrays are
117 * Return values from malloc are not properly tested.
120 __glXInitVertexArrayState( __GLXcontext
* gc
)
122 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
123 struct array_state_vector
* arrays
;
125 unsigned array_count
;
126 unsigned texture_units
= 1;
129 unsigned vertex_program_attribs
= 0;
131 GLboolean got_fog
= GL_FALSE
;
132 GLboolean got_secondary_color
= GL_FALSE
;
135 arrays
= calloc( 1, sizeof( struct array_state_vector
) );
136 state
->array_state
= arrays
;
138 arrays
->old_DrawArrays_possible
= !state
->NoDrawArraysProtocol
;
139 arrays
->new_DrawArrays_possible
= GL_FALSE
;
140 arrays
->DrawArrays
= NULL
;
142 arrays
->active_texture_unit
= 0;
145 /* Determine how many arrays are actually needed. Only arrays that
146 * are supported by the server are create. For example, if the server
147 * supports only 2 texture units, then only 2 texture coordinate arrays
150 * At the very least, GL_VERTEX_ARRAY, GL_NORMAL_ARRAY,
151 * GL_COLOR_ARRAY, GL_INDEX_ARRAY, GL_TEXTURE_COORD_ARRAY, and
152 * GL_EDGE_FLAG_ARRAY are supported.
157 if ( __glExtensionBitIsEnabled( gc
, GL_EXT_fog_coord_bit
)
158 || (gc
->server_major
> 1) || (gc
->server_minor
>= 4) ) {
163 if ( __glExtensionBitIsEnabled( gc
, GL_EXT_secondary_color_bit
)
164 || (gc
->server_major
> 1) || (gc
->server_minor
>= 4) ) {
165 got_secondary_color
= GL_TRUE
;
169 if ( __glExtensionBitIsEnabled( gc
, GL_ARB_multitexture_bit
)
170 || (gc
->server_major
> 1) || (gc
->server_minor
>= 3) ) {
171 __indirect_glGetIntegerv( GL_MAX_TEXTURE_UNITS
, & texture_units
);
174 if ( __glExtensionBitIsEnabled( gc
, GL_ARB_vertex_program_bit
) ) {
175 __indirect_glGetProgramivARB( GL_VERTEX_PROGRAM_ARB
,
176 GL_MAX_PROGRAM_ATTRIBS_ARB
,
177 & vertex_program_attribs
);
180 arrays
->num_texture_units
= texture_units
;
181 arrays
->num_vertex_program_attribs
= vertex_program_attribs
;
182 array_count
+= texture_units
+ vertex_program_attribs
;
183 arrays
->num_arrays
= array_count
;
184 arrays
->arrays
= calloc( array_count
, sizeof( struct array_state
) );
186 arrays
->arrays
[0].data_type
= GL_FLOAT
;
187 arrays
->arrays
[0].count
= 3;
188 arrays
->arrays
[0].key
= GL_NORMAL_ARRAY
;
189 arrays
->arrays
[0].normalized
= GL_TRUE
;
190 arrays
->arrays
[0].old_DrawArrays_possible
= GL_TRUE
;
192 arrays
->arrays
[1].data_type
= GL_FLOAT
;
193 arrays
->arrays
[1].count
= 4;
194 arrays
->arrays
[1].key
= GL_COLOR_ARRAY
;
195 arrays
->arrays
[1].normalized
= GL_TRUE
;
196 arrays
->arrays
[1].old_DrawArrays_possible
= GL_TRUE
;
198 arrays
->arrays
[2].data_type
= GL_FLOAT
;
199 arrays
->arrays
[2].count
= 1;
200 arrays
->arrays
[2].key
= GL_INDEX_ARRAY
;
201 arrays
->arrays
[2].old_DrawArrays_possible
= GL_TRUE
;
203 arrays
->arrays
[3].data_type
= GL_UNSIGNED_BYTE
;
204 arrays
->arrays
[3].count
= 1;
205 arrays
->arrays
[3].key
= GL_EDGE_FLAG_ARRAY
;
206 arrays
->arrays
[3].old_DrawArrays_possible
= GL_TRUE
;
208 for ( i
= 0 ; i
< texture_units
; i
++ ) {
209 arrays
->arrays
[4 + i
].data_type
= GL_FLOAT
;
210 arrays
->arrays
[4 + i
].count
= 4;
211 arrays
->arrays
[4 + i
].key
= GL_TEXTURE_COORD_ARRAY
;
213 arrays
->arrays
[4 + i
].old_DrawArrays_possible
= (i
== 0);
214 arrays
->arrays
[4 + i
].index
= i
;
216 arrays
->arrays
[4 + i
].header
[1] = i
+ GL_TEXTURE0
;
219 i
= 4 + texture_units
;
222 arrays
->arrays
[i
].data_type
= GL_FLOAT
;
223 arrays
->arrays
[i
].count
= 1;
224 arrays
->arrays
[i
].key
= GL_FOG_COORDINATE_ARRAY
;
225 arrays
->arrays
[i
].old_DrawArrays_possible
= GL_TRUE
;
229 if ( got_secondary_color
) {
230 arrays
->arrays
[i
].data_type
= GL_FLOAT
;
231 arrays
->arrays
[i
].count
= 3;
232 arrays
->arrays
[i
].key
= GL_SECONDARY_COLOR_ARRAY
;
233 arrays
->arrays
[i
].old_DrawArrays_possible
= GL_TRUE
;
234 arrays
->arrays
[i
].normalized
= GL_TRUE
;
239 for ( j
= 0 ; j
< vertex_program_attribs
; j
++ ) {
240 const unsigned idx
= (vertex_program_attribs
- (j
+ 1));
243 arrays
->arrays
[idx
+ i
].data_type
= GL_FLOAT
;
244 arrays
->arrays
[idx
+ i
].count
= 4;
245 arrays
->arrays
[idx
+ i
].key
= GL_VERTEX_ATTRIB_ARRAY_POINTER
;
247 arrays
->arrays
[idx
+ i
].old_DrawArrays_possible
= 0;
248 arrays
->arrays
[idx
+ i
].index
= idx
;
250 arrays
->arrays
[idx
+ i
].header
[1] = idx
;
253 i
+= vertex_program_attribs
;
256 /* Vertex array *must* be last becuase of the way that
257 * emit_DrawArrays_none works.
260 arrays
->arrays
[i
].data_type
= GL_FLOAT
;
261 arrays
->arrays
[i
].count
= 4;
262 arrays
->arrays
[i
].key
= GL_VERTEX_ARRAY
;
263 arrays
->arrays
[i
].old_DrawArrays_possible
= GL_TRUE
;
265 assert( (i
+ 1) == arrays
->num_arrays
);
267 arrays
->stack_index
= 0;
268 arrays
->stack
= malloc( sizeof( struct array_stack_state
)
269 * arrays
->num_arrays
);
274 * Calculate the size of a single vertex for the "none" protocol. This is
275 * essentially the size of all the immediate-mode commands required to
276 * implement the enabled vertex arrays.
279 calculate_single_vertex_size_none( const struct array_state_vector
* arrays
)
281 size_t single_vertex_size
= 0;
285 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
286 if ( arrays
->arrays
[i
].enabled
) {
287 single_vertex_size
+= ((uint16_t *)arrays
->arrays
[i
].header
)[0];
291 return single_vertex_size
;
296 * Emit a single element using non-DrawArrays protocol.
299 emit_element_none( GLubyte
* dst
,
300 const struct array_state_vector
* arrays
,
306 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
307 if ( arrays
->arrays
[i
].enabled
) {
308 const size_t offset
= index
* arrays
->arrays
[i
].true_stride
;
310 /* The generic attributes can have more data than is in the
311 * elements. This is because a vertex array can be a 2 element,
312 * normalized, unsigned short, but the "closest" immediate mode
313 * protocol is for a 4Nus. Since the sizes are small, the
314 * performance impact on modern processors should be negligible.
316 (void) memset( dst
, 0,
317 ((uint16_t *)arrays
->arrays
[i
].header
)[0] );
319 (void) memcpy( dst
, arrays
->arrays
[i
].header
,
320 arrays
->arrays
[i
].header_size
);
322 dst
+= arrays
->arrays
[i
].header_size
;
324 (void) memcpy( dst
, ((GLubyte
*) arrays
->arrays
[i
].data
) + offset
,
325 arrays
->arrays
[i
].element_size
);
327 dst
+= __GLX_PAD( arrays
->arrays
[i
].element_size
);
336 * Emit a single element using "old" DrawArrays protocol from
337 * EXT_vertex_arrays / OpenGL 1.1.
340 emit_element_old( GLubyte
* dst
,
341 const struct array_state_vector
* arrays
,
347 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
348 if ( arrays
->arrays
[i
].enabled
) {
349 const size_t offset
= index
* arrays
->arrays
[i
].true_stride
;
351 (void) memcpy( dst
, ((GLubyte
*) arrays
->arrays
[i
].data
) + offset
,
352 arrays
->arrays
[i
].element_size
);
354 dst
+= __GLX_PAD( arrays
->arrays
[i
].element_size
);
363 get_array_entry( const struct array_state_vector
* arrays
,
364 GLenum key
, unsigned index
)
368 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
369 if ( (arrays
->arrays
[i
].key
== key
)
370 && (arrays
->arrays
[i
].index
== index
) ) {
371 return & arrays
->arrays
[i
];
380 allocate_array_info_cache( struct array_state_vector
* arrays
,
381 size_t required_size
)
383 if ( arrays
->array_info_cache_buffer_size
< required_size
) {
384 GLubyte
* temp
= realloc( arrays
->array_info_cache
, required_size
+ 20 );
386 if ( temp
== NULL
) {
390 arrays
->large_header
= temp
;
391 arrays
->array_info_cache
= temp
+ 20;
392 arrays
->array_info_cache_buffer_size
= required_size
;
395 arrays
->array_info_cache_size
= required_size
;
403 fill_array_info_cache( struct array_state_vector
* arrays
)
405 GLboolean old_DrawArrays_possible
;
409 /* Determine how many arrays are enabled.
412 arrays
->enabled_client_array_count
= 0;
413 old_DrawArrays_possible
= arrays
->old_DrawArrays_possible
;
414 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
415 if ( arrays
->arrays
[i
].enabled
) {
416 arrays
->enabled_client_array_count
++;
417 old_DrawArrays_possible
&= arrays
->arrays
[i
].old_DrawArrays_possible
;
422 if ( arrays
->new_DrawArrays_possible
) {
423 assert( ! arrays
->new_DrawArrays_possible
);
425 else if ( old_DrawArrays_possible
) {
426 const size_t required_size
= arrays
->enabled_client_array_count
* 12;
430 if ( ! allocate_array_info_cache( arrays
, required_size
) ) {
435 info
= (uint32_t *) arrays
->array_info_cache
;
436 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
437 if ( arrays
->arrays
[i
].enabled
) {
438 *(info
++) = arrays
->arrays
[i
].data_type
;
439 *(info
++) = arrays
->arrays
[i
].count
;
440 *(info
++) = arrays
->arrays
[i
].key
;
444 arrays
->DrawArrays
= emit_DrawArrays_old
;
445 arrays
->DrawElements
= emit_DrawElements_old
;
448 arrays
->DrawArrays
= emit_DrawArrays_none
;
449 arrays
->DrawElements
= emit_DrawElements_none
;
452 arrays
->array_info_cache_valid
= GL_TRUE
;
457 * Emit a \c glDrawArrays command using the "none" protocol. That is,
458 * emit immediate-mode commands that are equivalent to the requiested
459 * \c glDrawArrays command. This is used with servers that don't support
460 * the OpenGL 1.1 / EXT_vertex_arrays DrawArrays protocol or in cases where
461 * vertex state is enabled that is not compatible with that protocol.
464 emit_DrawArrays_none( GLenum mode
, GLint first
, GLsizei count
)
466 __GLXcontext
*gc
= __glXGetCurrentContext();
467 const __GLXattribute
* state
=
468 (const __GLXattribute
*)(gc
->client_state_private
);
469 struct array_state_vector
* arrays
= state
->array_state
;
471 size_t single_vertex_size
;
474 static const uint16_t begin_cmd
[2] = { 8, X_GLrop_Begin
};
475 static const uint16_t end_cmd
[2] = { 4, X_GLrop_End
};
478 single_vertex_size
= calculate_single_vertex_size_none( arrays
);
482 (void) memcpy( pc
, begin_cmd
, 4 );
483 *(int *)(pc
+ 4) = mode
;
487 for ( i
= 0 ; i
< count
; i
++ ) {
488 if ( (pc
+ single_vertex_size
) >= gc
->bufEnd
) {
489 pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
492 pc
= emit_element_none( pc
, arrays
, first
+ i
);
495 if ( (pc
+ 4) >= gc
->bufEnd
) {
496 pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
499 (void) memcpy( pc
, end_cmd
, 4 );
503 if ( gc
->pc
> gc
->limit
) {
504 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
510 * Emit the header data for the GL 1.1 / EXT_vertex_arrays DrawArrays
513 * \param gc GLX context.
514 * \param arrays Array state.
515 * \param elements_per_request Location to store the number of elements that
516 * can fit in a single Render / RenderLarge
518 * \param total_request Total number of requests for a RenderLarge
519 * command. If a Render command is used, this
521 * \param mode Drawing mode.
522 * \param count Number of vertices.
525 * A pointer to the buffer for array data.
528 emit_DrawArrays_header_old( __GLXcontext
* gc
,
529 struct array_state_vector
* arrays
,
530 size_t * elements_per_request
,
531 size_t * total_requests
,
532 GLenum mode
, GLsizei count
)
535 size_t single_vertex_size
;
536 const unsigned header_size
= 16;
541 /* Determine the size of the whole command. This includes the header,
542 * the ARRAY_INFO data and the array data. Once this size is calculated,
543 * it will be known whether a Render or RenderLarge command is needed.
546 single_vertex_size
= 0;
547 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
548 if ( arrays
->arrays
[i
].enabled
) {
549 single_vertex_size
+= __GLX_PAD( arrays
->arrays
[i
].element_size
);
553 command_size
= arrays
->array_info_cache_size
+ header_size
554 + (single_vertex_size
* count
);
557 /* Write the header for either a Render command or a RenderLarge
558 * command. After the header is written, write the ARRAY_INFO data.
561 if ( command_size
> gc
->maxSmallRenderCommandSize
) {
562 /* maxSize is the maximum amount of data can be stuffed into a single
563 * packet. sz_xGLXRenderReq is added because bufSize is the maximum
564 * packet size minus sz_xGLXRenderReq.
566 const size_t maxSize
= (gc
->bufSize
+ sz_xGLXRenderReq
)
567 - sz_xGLXRenderLargeReq
;
568 unsigned vertex_requests
;
571 /* Calculate the number of data packets that will be required to send
572 * the whole command. To do this, the number of verticies that
573 * will fit in a single buffer must be calculated.
575 * The important value here is elements_per_request. This is the
576 * number of complete array elements that will fit in a single
577 * buffer. There may be some wasted space at the end of the buffer,
578 * but splitting elements across buffer boundries would be painful.
581 elements_per_request
[0] = maxSize
/ single_vertex_size
;
583 vertex_requests
= (count
+ elements_per_request
[0] - 1)
584 / elements_per_request
[0];
586 *total_requests
= vertex_requests
+ 1;
589 __glXFlushRenderBuffer(gc
, gc
->pc
);
593 pc
= arrays
->large_header
;
594 *(uint32_t *)(pc
+ 0) = command_size
;
595 *(uint32_t *)(pc
+ 4) = X_GLrop_DrawArrays
;
596 *(uint32_t *)(pc
+ 8) = count
;
597 *(uint32_t *)(pc
+ 12) = arrays
->enabled_client_array_count
;
598 *(uint32_t *)(pc
+ 16) = mode
;
600 __glXSendLargeChunk( gc
, 1, *total_requests
, pc
,
601 header_size
+ 4 + arrays
->array_info_cache_size
);
606 if ( (gc
->pc
+ command_size
) >= gc
->bufEnd
) {
607 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
611 *(uint16_t *)(pc
+ 0) = command_size
;
612 *(uint16_t *)(pc
+ 2) = X_GLrop_DrawArrays
;
613 *(uint32_t *)(pc
+ 4) = count
;
614 *(uint32_t *)(pc
+ 8) = arrays
->enabled_client_array_count
;
615 *(uint32_t *)(pc
+ 12) = mode
;
619 (void) memcpy( pc
, arrays
->array_info_cache
,
620 arrays
->array_info_cache_size
);
621 pc
+= arrays
->array_info_cache_size
;
623 *elements_per_request
= count
;
635 emit_DrawArrays_old( GLenum mode
, GLint first
, GLsizei count
)
637 __GLXcontext
*gc
= __glXGetCurrentContext();
638 const __GLXattribute
* state
=
639 (const __GLXattribute
*)(gc
->client_state_private
);
640 struct array_state_vector
* arrays
= state
->array_state
;
643 size_t elements_per_request
;
644 unsigned total_requests
= 0;
646 size_t total_sent
= 0;
649 pc
= emit_DrawArrays_header_old( gc
, arrays
, & elements_per_request
,
650 & total_requests
, mode
, count
);
656 if ( total_requests
== 0 ) {
657 assert( elements_per_request
>= count
);
659 for ( i
= 0 ; i
< count
; i
++ ) {
660 pc
= emit_element_old( pc
, arrays
, i
+ first
);
663 assert( pc
<= gc
->bufEnd
);
666 if ( gc
->pc
> gc
->limit
) {
667 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
674 for ( req
= 2 ; req
<= total_requests
; req
++ ) {
675 if ( count
< elements_per_request
) {
676 elements_per_request
= count
;
680 for ( i
= 0 ; i
< elements_per_request
; i
++ ) {
681 pc
= emit_element_old( pc
, arrays
, i
+ first
);
684 first
+= elements_per_request
;
686 total_sent
+= (size_t) (pc
- gc
->pc
);
687 __glXSendLargeChunk( gc
, req
, total_requests
, gc
->pc
,
690 count
-= elements_per_request
;
697 emit_DrawElements_none( GLenum mode
, GLsizei count
, GLenum type
,
698 const GLvoid
*indices
)
700 __GLXcontext
*gc
= __glXGetCurrentContext();
701 const __GLXattribute
* state
=
702 (const __GLXattribute
*)(gc
->client_state_private
);
703 struct array_state_vector
* arrays
= state
->array_state
;
704 static const uint16_t begin_cmd
[2] = { 8, X_GLrop_Begin
};
705 static const uint16_t end_cmd
[2] = { 4, X_GLrop_End
};
708 size_t single_vertex_size
;
712 single_vertex_size
= calculate_single_vertex_size_none( arrays
);
715 if ( (gc
->pc
+ single_vertex_size
) >= gc
->bufEnd
) {
716 gc
->pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
721 (void) memcpy( pc
, begin_cmd
, 4 );
722 *(int *)(pc
+ 4) = mode
;
726 for ( i
= 0 ; i
< count
; i
++ ) {
729 if ( (pc
+ single_vertex_size
) >= gc
->bufEnd
) {
730 pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
734 case GL_UNSIGNED_INT
:
735 index
= (unsigned) (((GLuint
*) indices
)[i
]);
737 case GL_UNSIGNED_SHORT
:
738 index
= (unsigned) (((GLushort
*) indices
)[i
]);
740 case GL_UNSIGNED_BYTE
:
741 index
= (unsigned) (((GLubyte
*) indices
)[i
]);
744 pc
= emit_element_none( pc
, arrays
, index
);
747 if ( (pc
+ 4) >= gc
->bufEnd
) {
748 pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
751 (void) memcpy( pc
, end_cmd
, 4 );
755 if ( gc
->pc
> gc
->limit
) {
756 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
764 emit_DrawElements_old( GLenum mode
, GLsizei count
, GLenum type
,
765 const GLvoid
*indices
)
767 __GLXcontext
*gc
= __glXGetCurrentContext();
768 const __GLXattribute
* state
=
769 (const __GLXattribute
*)(gc
->client_state_private
);
770 struct array_state_vector
* arrays
= state
->array_state
;
773 size_t elements_per_request
;
774 unsigned total_requests
= 0;
777 const GLuint
* ui_ptr
= (const GLuint
*) indices
;
778 const GLushort
* us_ptr
= (const GLushort
*) indices
;
779 const GLubyte
* ub_ptr
= (const GLubyte
*) indices
;
782 pc
= emit_DrawArrays_header_old( gc
, arrays
, & elements_per_request
,
783 & total_requests
, mode
, count
);
790 while ( count
> 0 ) {
791 if ( count
< elements_per_request
) {
792 elements_per_request
= count
;
796 case GL_UNSIGNED_INT
:
797 for ( i
= 0 ; i
< elements_per_request
; i
++ ) {
798 const GLint index
= (GLint
) *(ui_ptr
++);
799 pc
= emit_element_old( pc
, arrays
, index
);
802 case GL_UNSIGNED_SHORT
:
803 for ( i
= 0 ; i
< elements_per_request
; i
++ ) {
804 const GLint index
= (GLint
) *(us_ptr
++);
805 pc
= emit_element_old( pc
, arrays
, index
);
808 case GL_UNSIGNED_BYTE
:
809 for ( i
= 0 ; i
< elements_per_request
; i
++ ) {
810 const GLint index
= (GLint
) *(ub_ptr
++);
811 pc
= emit_element_old( pc
, arrays
, index
);
816 if ( total_requests
!= 0 ) {
817 __glXSendLargeChunk( gc
, req
, total_requests
, gc
->pc
,
823 count
-= elements_per_request
;
827 assert( (total_requests
== 0) || ((req
- 1) == total_requests
) );
829 if ( total_requests
== 0 ) {
830 assert( pc
<= gc
->bufEnd
);
833 if ( gc
->pc
> gc
->limit
) {
834 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
841 * Validate that the \c mode parameter to \c glDrawArrays, et. al. is valid.
842 * If it is not valid, then an error code is set in the GLX context.
845 * \c GL_TRUE if the argument is valid, \c GL_FALSE if is not.
848 validate_mode(__GLXcontext
*gc
, GLenum mode
)
855 case GL_TRIANGLE_STRIP
:
856 case GL_TRIANGLE_FAN
:
863 __glXSetError(gc
, GL_INVALID_ENUM
);
872 * Validate that the \c count parameter to \c glDrawArrays, et. al. is valid.
873 * A value less than zero is invalid and will result in \c GL_INVALID_VALUE
874 * being set. A value of zero will not result in an error being set, but
875 * will result in \c GL_FALSE being returned.
878 * \c GL_TRUE if the argument is valid, \c GL_FALSE if it is not.
881 validate_count(__GLXcontext
*gc
, GLsizei count
)
884 __glXSetError(gc
, GL_INVALID_VALUE
);
892 * Validate that the \c type parameter to \c glDrawElements, et. al. is
893 * valid. Only \c GL_UNSIGNED_BYTE, \c GL_UNSIGNED_SHORT, and
894 * \c GL_UNSIGNED_INT are valid.
897 * \c GL_TRUE if the argument is valid, \c GL_FALSE if it is not.
899 static GLboolean
validate_type(__GLXcontext
*gc
, GLenum type
)
902 case GL_UNSIGNED_INT
:
903 case GL_UNSIGNED_SHORT
:
904 case GL_UNSIGNED_BYTE
:
907 __glXSetError(gc
, GL_INVALID_ENUM
);
913 void __indirect_glDrawArrays(GLenum mode
, GLint first
, GLsizei count
)
915 __GLXcontext
*gc
= __glXGetCurrentContext();
916 const __GLXattribute
* state
=
917 (const __GLXattribute
*)(gc
->client_state_private
);
918 struct array_state_vector
* arrays
= state
->array_state
;
921 if ( validate_mode(gc
, mode
) && validate_count(gc
, count
) ) {
922 if ( ! arrays
->array_info_cache_valid
) {
923 fill_array_info_cache( arrays
);
926 arrays
->DrawArrays(mode
, first
, count
);
931 void __indirect_glArrayElement(GLint index
)
933 __GLXcontext
*gc
= __glXGetCurrentContext();
934 const __GLXattribute
* state
=
935 (const __GLXattribute
*)(gc
->client_state_private
);
936 struct array_state_vector
* arrays
= state
->array_state
;
938 size_t single_vertex_size
;
941 single_vertex_size
= calculate_single_vertex_size_none( arrays
);
943 if ( (gc
->pc
+ single_vertex_size
) >= gc
->bufEnd
) {
944 gc
->pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
947 gc
->pc
= emit_element_none( gc
->pc
, arrays
, index
);
949 if ( gc
->pc
> gc
->limit
) {
950 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
955 void __indirect_glDrawElements(GLenum mode
, GLsizei count
, GLenum type
,
956 const GLvoid
*indices
)
958 __GLXcontext
*gc
= __glXGetCurrentContext();
959 const __GLXattribute
* state
=
960 (const __GLXattribute
*)(gc
->client_state_private
);
961 struct array_state_vector
* arrays
= state
->array_state
;
964 if ( validate_mode(gc
, mode
) && validate_count(gc
, count
)
965 && validate_type(gc
, type
) ) {
966 if ( ! arrays
->array_info_cache_valid
) {
967 fill_array_info_cache( arrays
);
970 arrays
->DrawElements(mode
, count
, type
, indices
);
975 void __indirect_glDrawRangeElements(GLenum mode
, GLuint start
, GLuint end
,
976 GLsizei count
, GLenum type
,
977 const GLvoid
*indices
)
979 __GLXcontext
*gc
= __glXGetCurrentContext();
980 const __GLXattribute
* state
=
981 (const __GLXattribute
*)(gc
->client_state_private
);
982 struct array_state_vector
* arrays
= state
->array_state
;
985 if ( validate_mode(gc
, mode
) && validate_count(gc
, count
)
986 && validate_type(gc
, type
) ) {
988 __glXSetError(gc
, GL_INVALID_VALUE
);
992 if ( ! arrays
->array_info_cache_valid
) {
993 fill_array_info_cache( arrays
);
996 arrays
->DrawElements(mode
, count
, type
, indices
);
1001 void __indirect_glMultiDrawArraysEXT(GLenum mode
, GLint
*first
, GLsizei
*count
,
1004 __GLXcontext
*gc
= __glXGetCurrentContext();
1005 const __GLXattribute
* state
=
1006 (const __GLXattribute
*)(gc
->client_state_private
);
1007 struct array_state_vector
* arrays
= state
->array_state
;
1011 if ( validate_mode(gc
, mode
) ) {
1012 if ( ! arrays
->array_info_cache_valid
) {
1013 fill_array_info_cache( arrays
);
1016 for ( i
= 0 ; i
< primcount
; i
++ ) {
1017 if ( validate_count( gc
, count
[i
] ) ) {
1018 arrays
->DrawArrays(mode
, first
[i
], count
[i
]);
1025 void __indirect_glMultiDrawElementsEXT(GLenum mode
, const GLsizei
*count
,
1026 GLenum type
, const GLvoid
** indices
,
1029 __GLXcontext
*gc
= __glXGetCurrentContext();
1030 const __GLXattribute
* state
=
1031 (const __GLXattribute
*)(gc
->client_state_private
);
1032 struct array_state_vector
* arrays
= state
->array_state
;
1036 if ( validate_mode(gc
, mode
) && validate_type(gc
, type
) ) {
1037 if ( ! arrays
->array_info_cache_valid
) {
1038 fill_array_info_cache( arrays
);
1041 for ( i
= 0 ; i
< primcount
; i
++ ) {
1042 if ( validate_count( gc
, count
[i
] ) ) {
1043 arrays
->DrawElements(mode
, count
[i
], type
, indices
[i
]);
1050 #define COMMON_ARRAY_DATA_INIT(a, PTR, TYPE, STRIDE, COUNT, NORMALIZED, HDR_SIZE, OPCODE) \
1053 (a)->data_type = TYPE; \
1054 (a)->user_stride = STRIDE; \
1055 (a)->count = COUNT; \
1056 (a)->normalized = NORMALIZED; \
1058 (a)->element_size = __glXTypeSize( TYPE ) * COUNT; \
1059 (a)->true_stride = (STRIDE == 0) \
1060 ? (a)->element_size : STRIDE; \
1062 (a)->header_size = HDR_SIZE; \
1063 ((uint16_t *) (a)->header)[0] = __GLX_PAD((a)->header_size + (a)->element_size); \
1064 ((uint16_t *) (a)->header)[1] = OPCODE; \
1068 void __indirect_glVertexPointer( GLint size
, GLenum type
, GLsizei stride
,
1069 const GLvoid
* pointer
)
1071 static const uint16_t short_ops
[5] = {
1072 0, 0, X_GLrop_Vertex2sv
, X_GLrop_Vertex3sv
, X_GLrop_Vertex4sv
1074 static const uint16_t int_ops
[5] = {
1075 0, 0, X_GLrop_Vertex2iv
, X_GLrop_Vertex3iv
, X_GLrop_Vertex4iv
1077 static const uint16_t float_ops
[5] = {
1078 0, 0, X_GLrop_Vertex2fv
, X_GLrop_Vertex3fv
, X_GLrop_Vertex4fv
1080 static const uint16_t double_ops
[5] = {
1081 0, 0, X_GLrop_Vertex2dv
, X_GLrop_Vertex3dv
, X_GLrop_Vertex4dv
1084 __GLXcontext
*gc
= __glXGetCurrentContext();
1085 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1086 struct array_state_vector
* arrays
= state
->array_state
;
1087 struct array_state
* a
;
1090 if (size
< 2 || size
> 4 || stride
< 0) {
1091 __glXSetError(gc
, GL_INVALID_VALUE
);
1096 case GL_SHORT
: opcode
= short_ops
[size
]; break;
1097 case GL_INT
: opcode
= int_ops
[size
]; break;
1098 case GL_FLOAT
: opcode
= float_ops
[size
]; break;
1099 case GL_DOUBLE
: opcode
= double_ops
[size
]; break;
1101 __glXSetError(gc
, GL_INVALID_ENUM
);
1105 a
= get_array_entry( arrays
, GL_VERTEX_ARRAY
, 0 );
1106 assert( a
!= NULL
);
1107 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, size
, GL_FALSE
, 4,
1111 arrays
->array_info_cache_valid
= GL_FALSE
;
1116 void __indirect_glNormalPointer( GLenum type
, GLsizei stride
,
1117 const GLvoid
* pointer
)
1120 __GLXcontext
*gc
= __glXGetCurrentContext();
1121 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1122 struct array_state_vector
* arrays
= state
->array_state
;
1123 struct array_state
* a
;
1127 __glXSetError(gc
, GL_INVALID_VALUE
);
1132 case GL_BYTE
: opcode
= X_GLrop_Normal3bv
; break;
1133 case GL_SHORT
: opcode
= X_GLrop_Normal3sv
; break;
1134 case GL_INT
: opcode
= X_GLrop_Normal3iv
; break;
1135 case GL_FLOAT
: opcode
= X_GLrop_Normal3fv
; break;
1136 case GL_DOUBLE
: opcode
= X_GLrop_Normal3dv
; break;
1138 __glXSetError(gc
, GL_INVALID_ENUM
);
1142 a
= get_array_entry( arrays
, GL_NORMAL_ARRAY
, 0 );
1143 assert( a
!= NULL
);
1144 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, 3, GL_TRUE
, 4,
1148 arrays
->array_info_cache_valid
= GL_FALSE
;
1153 void __indirect_glColorPointer( GLint size
, GLenum type
, GLsizei stride
,
1154 const GLvoid
* pointer
)
1156 static const uint16_t byte_ops
[5] = {
1157 0, 0, 0, X_GLrop_Color3bv
, X_GLrop_Color4bv
1159 static const uint16_t ubyte_ops
[5] = {
1160 0, 0, 0, X_GLrop_Color3ubv
, X_GLrop_Color4ubv
1162 static const uint16_t short_ops
[5] = {
1163 0, 0, 0, X_GLrop_Color3sv
, X_GLrop_Color4sv
1165 static const uint16_t ushort_ops
[5] = {
1166 0, 0, 0, X_GLrop_Color3usv
, X_GLrop_Color4usv
1168 static const uint16_t int_ops
[5] = {
1169 0, 0, 0, X_GLrop_Color3iv
, X_GLrop_Color4iv
1171 static const uint16_t uint_ops
[5] = {
1172 0, 0, 0, X_GLrop_Color3uiv
, X_GLrop_Color4uiv
1174 static const uint16_t float_ops
[5] = {
1175 0, 0, 0, X_GLrop_Color3fv
, X_GLrop_Color4fv
1177 static const uint16_t double_ops
[5] = {
1178 0, 0, 0, X_GLrop_Color3dv
, X_GLrop_Color4dv
1181 __GLXcontext
*gc
= __glXGetCurrentContext();
1182 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1183 struct array_state_vector
* arrays
= state
->array_state
;
1184 struct array_state
* a
;
1187 if (size
< 3 || size
> 4 || stride
< 0) {
1188 __glXSetError(gc
, GL_INVALID_VALUE
);
1193 case GL_BYTE
: opcode
= byte_ops
[size
]; break;
1194 case GL_UNSIGNED_BYTE
: opcode
= ubyte_ops
[size
]; break;
1195 case GL_SHORT
: opcode
= short_ops
[size
]; break;
1196 case GL_UNSIGNED_SHORT
: opcode
= ushort_ops
[size
]; break;
1197 case GL_INT
: opcode
= int_ops
[size
]; break;
1198 case GL_UNSIGNED_INT
: opcode
= uint_ops
[size
]; break;
1199 case GL_FLOAT
: opcode
= float_ops
[size
]; break;
1200 case GL_DOUBLE
: opcode
= double_ops
[size
]; break;
1202 __glXSetError(gc
, GL_INVALID_ENUM
);
1206 a
= get_array_entry( arrays
, GL_COLOR_ARRAY
, 0 );
1207 assert( a
!= NULL
);
1208 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, size
, GL_TRUE
, 4,
1212 arrays
->array_info_cache_valid
= GL_FALSE
;
1217 void __indirect_glIndexPointer( GLenum type
, GLsizei stride
,
1218 const GLvoid
* pointer
)
1221 __GLXcontext
*gc
= __glXGetCurrentContext();
1222 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1223 struct array_state_vector
* arrays
= state
->array_state
;
1224 struct array_state
* a
;
1228 __glXSetError(gc
, GL_INVALID_VALUE
);
1233 case GL_UNSIGNED_BYTE
: opcode
= X_GLrop_Indexubv
; break;
1234 case GL_SHORT
: opcode
= X_GLrop_Indexsv
; break;
1235 case GL_INT
: opcode
= X_GLrop_Indexiv
; break;
1236 case GL_FLOAT
: opcode
= X_GLrop_Indexfv
; break;
1237 case GL_DOUBLE
: opcode
= X_GLrop_Indexdv
; break;
1239 __glXSetError(gc
, GL_INVALID_ENUM
);
1243 a
= get_array_entry( arrays
, GL_INDEX_ARRAY
, 0 );
1244 assert( a
!= NULL
);
1245 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, 1, GL_FALSE
, 4,
1249 arrays
->array_info_cache_valid
= GL_FALSE
;
1254 void __indirect_glEdgeFlagPointer( GLsizei stride
, const GLvoid
* pointer
)
1256 __GLXcontext
*gc
= __glXGetCurrentContext();
1257 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1258 struct array_state_vector
* arrays
= state
->array_state
;
1259 struct array_state
* a
;
1263 __glXSetError(gc
, GL_INVALID_VALUE
);
1268 a
= get_array_entry( arrays
, GL_EDGE_FLAG_ARRAY
, 0 );
1269 assert( a
!= NULL
);
1270 COMMON_ARRAY_DATA_INIT( a
, pointer
, GL_UNSIGNED_BYTE
, stride
, 1, GL_FALSE
,
1271 4, X_GLrop_EdgeFlagv
);
1274 arrays
->array_info_cache_valid
= GL_FALSE
;
1279 void __indirect_glTexCoordPointer( GLint size
, GLenum type
, GLsizei stride
,
1280 const GLvoid
* pointer
)
1282 static const uint16_t short_ops
[5] = {
1283 0, X_GLrop_TexCoord1sv
, X_GLrop_TexCoord2sv
, X_GLrop_TexCoord3sv
, X_GLrop_TexCoord4sv
1285 static const uint16_t int_ops
[5] = {
1286 0, X_GLrop_TexCoord1iv
, X_GLrop_TexCoord2iv
, X_GLrop_TexCoord3iv
, X_GLrop_TexCoord4iv
1288 static const uint16_t float_ops
[5] = {
1289 0, X_GLrop_TexCoord1dv
, X_GLrop_TexCoord2fv
, X_GLrop_TexCoord3fv
, X_GLrop_TexCoord4fv
1291 static const uint16_t double_ops
[5] = {
1292 0, X_GLrop_TexCoord1dv
, X_GLrop_TexCoord2dv
, X_GLrop_TexCoord3dv
, X_GLrop_TexCoord4dv
1295 static const uint16_t mshort_ops
[5] = {
1296 0, X_GLrop_MultiTexCoord1svARB
, X_GLrop_MultiTexCoord2svARB
, X_GLrop_MultiTexCoord3svARB
, X_GLrop_MultiTexCoord4svARB
1298 static const uint16_t mint_ops
[5] = {
1299 0, X_GLrop_MultiTexCoord1ivARB
, X_GLrop_MultiTexCoord2ivARB
, X_GLrop_MultiTexCoord3ivARB
, X_GLrop_MultiTexCoord4ivARB
1301 static const uint16_t mfloat_ops
[5] = {
1302 0, X_GLrop_MultiTexCoord1dvARB
, X_GLrop_MultiTexCoord2fvARB
, X_GLrop_MultiTexCoord3fvARB
, X_GLrop_MultiTexCoord4fvARB
1304 static const uint16_t mdouble_ops
[5] = {
1305 0, X_GLrop_MultiTexCoord1dvARB
, X_GLrop_MultiTexCoord2dvARB
, X_GLrop_MultiTexCoord3dvARB
, X_GLrop_MultiTexCoord4dvARB
1309 __GLXcontext
*gc
= __glXGetCurrentContext();
1310 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1311 struct array_state_vector
* arrays
= state
->array_state
;
1312 struct array_state
* a
;
1313 unsigned header_size
;
1317 if (size
< 1 || size
> 4 || stride
< 0) {
1318 __glXSetError(gc
, GL_INVALID_VALUE
);
1322 index
= arrays
->active_texture_unit
;
1325 case GL_SHORT
: opcode
= short_ops
[size
]; break;
1326 case GL_INT
: opcode
= int_ops
[size
]; break;
1327 case GL_FLOAT
: opcode
= float_ops
[size
]; break;
1328 case GL_DOUBLE
: opcode
= double_ops
[size
]; break;
1330 __glXSetError(gc
, GL_INVALID_ENUM
);
1338 case GL_SHORT
: opcode
= mshort_ops
[size
]; break;
1339 case GL_INT
: opcode
= mint_ops
[size
]; break;
1340 case GL_FLOAT
: opcode
= mfloat_ops
[size
]; break;
1341 case GL_DOUBLE
: opcode
= mdouble_ops
[size
]; break;
1343 __glXSetError(gc
, GL_INVALID_ENUM
);
1350 a
= get_array_entry( arrays
, GL_TEXTURE_COORD_ARRAY
, index
);
1351 assert( a
!= NULL
);
1352 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, size
, GL_FALSE
,
1353 header_size
, opcode
);
1356 arrays
->array_info_cache_valid
= GL_FALSE
;
1361 void __indirect_glSecondaryColorPointerEXT( GLint size
, GLenum type
, GLsizei stride
,
1362 const GLvoid
* pointer
)
1365 __GLXcontext
*gc
= __glXGetCurrentContext();
1366 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1367 struct array_state_vector
* arrays
= state
->array_state
;
1368 struct array_state
* a
;
1371 if (size
!= 3 || stride
< 0) {
1372 __glXSetError(gc
, GL_INVALID_VALUE
);
1377 case GL_BYTE
: opcode
= 4126; break;
1378 case GL_UNSIGNED_BYTE
: opcode
= 4131; break;
1379 case GL_SHORT
: opcode
= 4127; break;
1380 case GL_UNSIGNED_SHORT
: opcode
= 4132; break;
1381 case GL_INT
: opcode
= 4128; break;
1382 case GL_UNSIGNED_INT
: opcode
= 4133; break;
1383 case GL_FLOAT
: opcode
= 4129; break;
1384 case GL_DOUBLE
: opcode
= 4130; break;
1386 __glXSetError(gc
, GL_INVALID_ENUM
);
1390 a
= get_array_entry( arrays
, GL_SECONDARY_COLOR_ARRAY
, 0 );
1392 __glXSetError(gc
, GL_INVALID_OPERATION
);
1396 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, size
, GL_TRUE
, 4,
1400 arrays
->array_info_cache_valid
= GL_FALSE
;
1405 void __indirect_glFogCoordPointerEXT( GLenum type
, GLsizei stride
,
1406 const GLvoid
* pointer
)
1409 __GLXcontext
*gc
= __glXGetCurrentContext();
1410 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1411 struct array_state_vector
* arrays
= state
->array_state
;
1412 struct array_state
* a
;
1416 __glXSetError(gc
, GL_INVALID_VALUE
);
1421 case GL_FLOAT
: opcode
= 4124; break;
1422 case GL_DOUBLE
: opcode
= 4125; break;
1424 __glXSetError(gc
, GL_INVALID_ENUM
);
1428 a
= get_array_entry( arrays
, GL_FOG_COORD_ARRAY
, 0 );
1430 __glXSetError(gc
, GL_INVALID_OPERATION
);
1434 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, 1, GL_FALSE
, 4,
1438 arrays
->array_info_cache_valid
= GL_FALSE
;
1443 void __indirect_glVertexAttribPointerARB(GLuint index
, GLint size
,
1444 GLenum type
, GLboolean normalized
,
1446 const GLvoid
* pointer
)
1448 static const uint16_t short_ops
[5] = { 0, 4189, 4190, 4191, 4192 };
1449 static const uint16_t float_ops
[5] = { 0, 4193, 4194, 4195, 4196 };
1450 static const uint16_t double_ops
[5] = { 0, 4197, 4198, 4199, 4200 };
1453 __GLXcontext
*gc
= __glXGetCurrentContext();
1454 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1455 struct array_state_vector
* arrays
= state
->array_state
;
1456 struct array_state
* a
;
1457 unsigned true_immediate_count
;
1458 unsigned true_immediate_size
;
1461 if ( (size
< 1) || (size
> 4) || (stride
< 0)
1462 || (index
> arrays
->num_vertex_program_attribs
) ){
1463 __glXSetError(gc
, GL_INVALID_VALUE
);
1467 if ( normalized
&& (type
!= GL_FLOAT
) && (type
!= GL_DOUBLE
)) {
1469 case GL_BYTE
: opcode
= X_GLrop_VertexAttrib4NbvARB
; break;
1470 case GL_UNSIGNED_BYTE
: opcode
= X_GLrop_VertexAttrib4NubvARB
; break;
1471 case GL_SHORT
: opcode
= X_GLrop_VertexAttrib4NsvARB
; break;
1472 case GL_UNSIGNED_SHORT
: opcode
= X_GLrop_VertexAttrib4NusvARB
; break;
1473 case GL_INT
: opcode
= X_GLrop_VertexAttrib4NivARB
; break;
1474 case GL_UNSIGNED_INT
: opcode
= X_GLrop_VertexAttrib4NuivARB
; break;
1476 __glXSetError(gc
, GL_INVALID_ENUM
);
1480 true_immediate_count
= 4;
1483 true_immediate_count
= size
;
1487 opcode
= X_GLrop_VertexAttrib4bvARB
;
1488 true_immediate_count
= 4;
1490 case GL_UNSIGNED_BYTE
:
1491 opcode
= X_GLrop_VertexAttrib4ubvARB
;
1492 true_immediate_count
= 4;
1495 opcode
= short_ops
[size
];
1497 case GL_UNSIGNED_SHORT
:
1498 opcode
= X_GLrop_VertexAttrib4usvARB
;
1499 true_immediate_count
= 4;
1502 opcode
= X_GLrop_VertexAttrib4ivARB
;
1503 true_immediate_count
= 4;
1505 case GL_UNSIGNED_INT
:
1506 opcode
= X_GLrop_VertexAttrib4uivARB
;
1507 true_immediate_count
= 4;
1510 opcode
= float_ops
[size
];
1513 opcode
= double_ops
[size
];
1516 __glXSetError(gc
, GL_INVALID_ENUM
);
1521 a
= get_array_entry( arrays
, GL_VERTEX_ATTRIB_ARRAY_POINTER
, index
);
1523 __glXSetError(gc
, GL_INVALID_OPERATION
);
1527 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, size
, normalized
, 8,
1530 true_immediate_size
= __glXTypeSize(type
) * true_immediate_count
;
1531 ((uint16_t *) (a
)->header
)[0] = __GLX_PAD(a
->header_size
1532 + true_immediate_size
);
1535 arrays
->array_info_cache_valid
= GL_FALSE
;
1541 * I don't have 100% confidence that this is correct. The different rules
1542 * about whether or not generic vertex attributes alias "classic" vertex
1543 * attributes (i.e., attrib1 ?= primary color) between ARB_vertex_program,
1544 * ARB_vertex_shader, and NV_vertex_program are a bit confusing. My
1545 * feeling is that the client-side doesn't have to worry about it. The
1546 * client just sends all the data to the server and lets the server deal
1549 void __indirect_glVertexAttribPointerNV( GLuint index
, GLint size
,
1550 GLenum type
, GLsizei stride
,
1551 const GLvoid
* pointer
)
1553 __GLXcontext
*gc
= __glXGetCurrentContext();
1554 GLboolean normalized
= GL_FALSE
;
1558 case GL_UNSIGNED_BYTE
:
1560 __glXSetError(gc
, GL_INVALID_VALUE
);
1563 normalized
= GL_TRUE
;
1568 __indirect_glVertexAttribPointerARB(index
, size
, type
,
1573 __glXSetError(gc
, GL_INVALID_ENUM
);
1579 void __indirect_glClientActiveTextureARB(GLenum texture
)
1581 __GLXcontext
* const gc
= __glXGetCurrentContext();
1582 __GLXattribute
* const state
= (__GLXattribute
*)(gc
->client_state_private
);
1583 struct array_state_vector
* const arrays
= state
->array_state
;
1584 const GLint unit
= (GLint
) texture
- GL_TEXTURE0
;
1587 if ( (unit
< 0) || (unit
> arrays
->num_texture_units
) ) {
1588 __glXSetError(gc
, GL_INVALID_ENUM
);
1592 arrays
->active_texture_unit
= unit
;
1599 __glXSetArrayEnable( __GLXattribute
* state
,
1600 GLenum key
, unsigned index
, GLboolean enable
)
1602 struct array_state_vector
* arrays
= state
->array_state
;
1603 struct array_state
* a
;
1606 if ( key
== GL_TEXTURE_COORD_ARRAY
) {
1607 index
= arrays
->active_texture_unit
;
1610 a
= get_array_entry( arrays
, key
, index
);
1612 if ( (a
!= NULL
) && (a
->enabled
!= enable
) ) {
1613 a
->enabled
= enable
;
1614 arrays
->array_info_cache_valid
= GL_FALSE
;
1622 __glXArrayDisableAll( __GLXattribute
* state
)
1624 struct array_state_vector
* arrays
= state
->array_state
;
1628 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
1629 arrays
->arrays
[i
].enabled
= GL_FALSE
;
1632 arrays
->array_info_cache_valid
= GL_FALSE
;
1639 __glXGetArrayEnable( const __GLXattribute
* const state
,
1640 GLenum key
, unsigned index
, GLintptr
* dest
)
1642 const struct array_state_vector
* arrays
= state
->array_state
;
1643 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1647 *dest
= (GLintptr
) a
->enabled
;
1657 __glXGetArrayType( const __GLXattribute
* const state
,
1658 GLenum key
, unsigned index
, GLintptr
* dest
)
1660 const struct array_state_vector
* arrays
= state
->array_state
;
1661 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1665 *dest
= (GLintptr
) a
->enabled
;
1675 __glXGetArraySize( const __GLXattribute
* const state
,
1676 GLenum key
, unsigned index
, GLintptr
* dest
)
1678 const struct array_state_vector
* arrays
= state
->array_state
;
1679 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1683 *dest
= (GLintptr
) a
->count
;
1693 __glXGetArrayStride( const __GLXattribute
* const state
,
1694 GLenum key
, unsigned index
, GLintptr
* dest
)
1696 const struct array_state_vector
* arrays
= state
->array_state
;
1697 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1701 *dest
= (GLintptr
) a
->user_stride
;
1711 __glXGetArrayPointer( const __GLXattribute
* const state
,
1712 GLenum key
, unsigned index
, void ** dest
)
1714 const struct array_state_vector
* arrays
= state
->array_state
;
1715 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1720 *dest
= (void *) (a
->data
);
1730 __glXGetArrayNormalized( const __GLXattribute
* const state
,
1731 GLenum key
, unsigned index
, GLintptr
* dest
)
1733 const struct array_state_vector
* arrays
= state
->array_state
;
1734 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1739 *dest
= (GLintptr
) a
->normalized
;
1749 __glXGetActiveTextureUnit( const __GLXattribute
* const state
)
1751 return state
->array_state
->active_texture_unit
;
1756 __glXPushArrayState( __GLXattribute
* state
)
1758 struct array_state_vector
* arrays
= state
->array_state
;
1759 struct array_stack_state
* stack
= & arrays
->stack
[ (arrays
->stack_index
* arrays
->num_arrays
)];
1763 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
1764 stack
[i
].data
= arrays
->arrays
[i
].data
;
1765 stack
[i
].data_type
= arrays
->arrays
[i
].data_type
;
1766 stack
[i
].user_stride
= arrays
->arrays
[i
].user_stride
;
1767 stack
[i
].count
= arrays
->arrays
[i
].count
;
1768 stack
[i
].key
= arrays
->arrays
[i
].key
;
1769 stack
[i
].enabled
= arrays
->arrays
[i
].enabled
;
1772 arrays
->active_texture_unit_stack
[ arrays
->stack_index
] =
1773 arrays
->active_texture_unit
;
1775 arrays
->stack_index
++;
1780 __glXPopArrayState( __GLXattribute
* state
)
1782 struct array_state_vector
* arrays
= state
->array_state
;
1783 struct array_stack_state
* stack
;
1787 arrays
->stack_index
--;
1788 stack
= & arrays
->stack
[ (arrays
->stack_index
* arrays
->num_arrays
) ];
1790 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
1791 switch ( stack
[i
].key
) {
1792 case GL_NORMAL_ARRAY
:
1793 __indirect_glNormalPointer( stack
[i
].data_type
,
1794 stack
[i
].user_stride
,
1797 case GL_COLOR_ARRAY
:
1798 __indirect_glColorPointer( stack
[i
].count
,
1800 stack
[i
].user_stride
,
1803 case GL_INDEX_ARRAY
:
1804 __indirect_glIndexPointer( stack
[i
].data_type
,
1805 stack
[i
].user_stride
,
1808 case GL_EDGE_FLAG_ARRAY
:
1809 __indirect_glEdgeFlagPointer( stack
[i
].user_stride
,
1812 case GL_TEXTURE_COORD_ARRAY
:
1813 arrays
->active_texture_unit
= stack
[i
].index
;
1814 __indirect_glTexCoordPointer( stack
[i
].count
,
1816 stack
[i
].user_stride
,
1819 case GL_SECONDARY_COLOR_ARRAY
:
1820 __indirect_glSecondaryColorPointerEXT( stack
[i
].count
,
1822 stack
[i
].user_stride
,
1825 case GL_FOG_COORDINATE_ARRAY
:
1826 __indirect_glFogCoordPointerEXT( stack
[i
].data_type
,
1827 stack
[i
].user_stride
,
1833 __glXSetArrayEnable( state
, stack
[i
].key
, stack
[i
].index
,
1837 arrays
->active_texture_unit
=
1838 arrays
->active_texture_unit_stack
[ arrays
->stack_index
];