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 #define MAX_HEADER_SIZE 20
384 if ( arrays
->array_info_cache_buffer_size
< required_size
) {
385 GLubyte
* temp
= realloc( arrays
->array_info_cache_base
,
386 required_size
+ MAX_HEADER_SIZE
);
388 if ( temp
== NULL
) {
392 arrays
->array_info_cache_base
= temp
;
393 arrays
->array_info_cache
= temp
+ MAX_HEADER_SIZE
;
394 arrays
->array_info_cache_buffer_size
= required_size
;
397 arrays
->array_info_cache_size
= required_size
;
405 fill_array_info_cache( struct array_state_vector
* arrays
)
407 GLboolean old_DrawArrays_possible
;
411 /* Determine how many arrays are enabled.
414 arrays
->enabled_client_array_count
= 0;
415 old_DrawArrays_possible
= arrays
->old_DrawArrays_possible
;
416 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
417 if ( arrays
->arrays
[i
].enabled
) {
418 arrays
->enabled_client_array_count
++;
419 old_DrawArrays_possible
&= arrays
->arrays
[i
].old_DrawArrays_possible
;
424 if ( arrays
->new_DrawArrays_possible
) {
425 assert( ! arrays
->new_DrawArrays_possible
);
427 else if ( old_DrawArrays_possible
) {
428 const size_t required_size
= arrays
->enabled_client_array_count
* 12;
432 if ( ! allocate_array_info_cache( arrays
, required_size
) ) {
437 info
= (uint32_t *) arrays
->array_info_cache
;
438 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
439 if ( arrays
->arrays
[i
].enabled
) {
440 *(info
++) = arrays
->arrays
[i
].data_type
;
441 *(info
++) = arrays
->arrays
[i
].count
;
442 *(info
++) = arrays
->arrays
[i
].key
;
446 arrays
->DrawArrays
= emit_DrawArrays_old
;
447 arrays
->DrawElements
= emit_DrawElements_old
;
450 arrays
->DrawArrays
= emit_DrawArrays_none
;
451 arrays
->DrawElements
= emit_DrawElements_none
;
454 arrays
->array_info_cache_valid
= GL_TRUE
;
459 * Emit a \c glDrawArrays command using the "none" protocol. That is,
460 * emit immediate-mode commands that are equivalent to the requiested
461 * \c glDrawArrays command. This is used with servers that don't support
462 * the OpenGL 1.1 / EXT_vertex_arrays DrawArrays protocol or in cases where
463 * vertex state is enabled that is not compatible with that protocol.
466 emit_DrawArrays_none( GLenum mode
, GLint first
, GLsizei count
)
468 __GLXcontext
*gc
= __glXGetCurrentContext();
469 const __GLXattribute
* state
=
470 (const __GLXattribute
*)(gc
->client_state_private
);
471 struct array_state_vector
* arrays
= state
->array_state
;
473 size_t single_vertex_size
;
476 static const uint16_t begin_cmd
[2] = { 8, X_GLrop_Begin
};
477 static const uint16_t end_cmd
[2] = { 4, X_GLrop_End
};
480 single_vertex_size
= calculate_single_vertex_size_none( arrays
);
484 (void) memcpy( pc
, begin_cmd
, 4 );
485 *(int *)(pc
+ 4) = mode
;
489 for ( i
= 0 ; i
< count
; i
++ ) {
490 if ( (pc
+ single_vertex_size
) >= gc
->bufEnd
) {
491 pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
494 pc
= emit_element_none( pc
, arrays
, first
+ i
);
497 if ( (pc
+ 4) >= gc
->bufEnd
) {
498 pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
501 (void) memcpy( pc
, end_cmd
, 4 );
505 if ( gc
->pc
> gc
->limit
) {
506 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
512 * Emit the header data for the GL 1.1 / EXT_vertex_arrays DrawArrays
515 * \param gc GLX context.
516 * \param arrays Array state.
517 * \param elements_per_request Location to store the number of elements that
518 * can fit in a single Render / RenderLarge
520 * \param total_request Total number of requests for a RenderLarge
521 * command. If a Render command is used, this
523 * \param mode Drawing mode.
524 * \param count Number of vertices.
527 * A pointer to the buffer for array data.
530 emit_DrawArrays_header_old( __GLXcontext
* gc
,
531 struct array_state_vector
* arrays
,
532 size_t * elements_per_request
,
533 size_t * total_requests
,
534 GLenum mode
, GLsizei count
)
537 size_t single_vertex_size
;
538 const unsigned header_size
= 16;
543 /* Determine the size of the whole command. This includes the header,
544 * the ARRAY_INFO data and the array data. Once this size is calculated,
545 * it will be known whether a Render or RenderLarge command is needed.
548 single_vertex_size
= 0;
549 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
550 if ( arrays
->arrays
[i
].enabled
) {
551 single_vertex_size
+= __GLX_PAD( arrays
->arrays
[i
].element_size
);
555 command_size
= arrays
->array_info_cache_size
+ header_size
556 + (single_vertex_size
* count
);
559 /* Write the header for either a Render command or a RenderLarge
560 * command. After the header is written, write the ARRAY_INFO data.
563 if ( command_size
> gc
->maxSmallRenderCommandSize
) {
564 /* maxSize is the maximum amount of data can be stuffed into a single
565 * packet. sz_xGLXRenderReq is added because bufSize is the maximum
566 * packet size minus sz_xGLXRenderReq.
568 const size_t maxSize
= (gc
->bufSize
+ sz_xGLXRenderReq
)
569 - sz_xGLXRenderLargeReq
;
570 unsigned vertex_requests
;
573 /* Calculate the number of data packets that will be required to send
574 * the whole command. To do this, the number of verticies that
575 * will fit in a single buffer must be calculated.
577 * The important value here is elements_per_request. This is the
578 * number of complete array elements that will fit in a single
579 * buffer. There may be some wasted space at the end of the buffer,
580 * but splitting elements across buffer boundries would be painful.
583 elements_per_request
[0] = maxSize
/ single_vertex_size
;
585 vertex_requests
= (count
+ elements_per_request
[0] - 1)
586 / elements_per_request
[0];
588 *total_requests
= vertex_requests
+ 1;
591 __glXFlushRenderBuffer(gc
, gc
->pc
);
595 pc
= ((GLubyte
*) arrays
->array_info_cache
) - (header_size
+ 4);
596 *(uint32_t *)(pc
+ 0) = command_size
;
597 *(uint32_t *)(pc
+ 4) = X_GLrop_DrawArrays
;
598 *(uint32_t *)(pc
+ 8) = count
;
599 *(uint32_t *)(pc
+ 12) = arrays
->enabled_client_array_count
;
600 *(uint32_t *)(pc
+ 16) = mode
;
602 __glXSendLargeChunk( gc
, 1, *total_requests
, pc
,
603 header_size
+ 4 + arrays
->array_info_cache_size
);
608 if ( (gc
->pc
+ command_size
) >= gc
->bufEnd
) {
609 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
613 *(uint16_t *)(pc
+ 0) = command_size
;
614 *(uint16_t *)(pc
+ 2) = X_GLrop_DrawArrays
;
615 *(uint32_t *)(pc
+ 4) = count
;
616 *(uint32_t *)(pc
+ 8) = arrays
->enabled_client_array_count
;
617 *(uint32_t *)(pc
+ 12) = mode
;
621 (void) memcpy( pc
, arrays
->array_info_cache
,
622 arrays
->array_info_cache_size
);
623 pc
+= arrays
->array_info_cache_size
;
625 *elements_per_request
= count
;
637 emit_DrawArrays_old( GLenum mode
, GLint first
, GLsizei count
)
639 __GLXcontext
*gc
= __glXGetCurrentContext();
640 const __GLXattribute
* state
=
641 (const __GLXattribute
*)(gc
->client_state_private
);
642 struct array_state_vector
* arrays
= state
->array_state
;
645 size_t elements_per_request
;
646 unsigned total_requests
= 0;
648 size_t total_sent
= 0;
651 pc
= emit_DrawArrays_header_old( gc
, arrays
, & elements_per_request
,
652 & total_requests
, mode
, count
);
658 if ( total_requests
== 0 ) {
659 assert( elements_per_request
>= count
);
661 for ( i
= 0 ; i
< count
; i
++ ) {
662 pc
= emit_element_old( pc
, arrays
, i
+ first
);
665 assert( pc
<= gc
->bufEnd
);
668 if ( gc
->pc
> gc
->limit
) {
669 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
676 for ( req
= 2 ; req
<= total_requests
; req
++ ) {
677 if ( count
< elements_per_request
) {
678 elements_per_request
= count
;
682 for ( i
= 0 ; i
< elements_per_request
; i
++ ) {
683 pc
= emit_element_old( pc
, arrays
, i
+ first
);
686 first
+= elements_per_request
;
688 total_sent
+= (size_t) (pc
- gc
->pc
);
689 __glXSendLargeChunk( gc
, req
, total_requests
, gc
->pc
,
692 count
-= elements_per_request
;
699 emit_DrawElements_none( GLenum mode
, GLsizei count
, GLenum type
,
700 const GLvoid
*indices
)
702 __GLXcontext
*gc
= __glXGetCurrentContext();
703 const __GLXattribute
* state
=
704 (const __GLXattribute
*)(gc
->client_state_private
);
705 struct array_state_vector
* arrays
= state
->array_state
;
706 static const uint16_t begin_cmd
[2] = { 8, X_GLrop_Begin
};
707 static const uint16_t end_cmd
[2] = { 4, X_GLrop_End
};
710 size_t single_vertex_size
;
714 single_vertex_size
= calculate_single_vertex_size_none( arrays
);
717 if ( (gc
->pc
+ single_vertex_size
) >= gc
->bufEnd
) {
718 gc
->pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
723 (void) memcpy( pc
, begin_cmd
, 4 );
724 *(int *)(pc
+ 4) = mode
;
728 for ( i
= 0 ; i
< count
; i
++ ) {
731 if ( (pc
+ single_vertex_size
) >= gc
->bufEnd
) {
732 pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
736 case GL_UNSIGNED_INT
:
737 index
= (unsigned) (((GLuint
*) indices
)[i
]);
739 case GL_UNSIGNED_SHORT
:
740 index
= (unsigned) (((GLushort
*) indices
)[i
]);
742 case GL_UNSIGNED_BYTE
:
743 index
= (unsigned) (((GLubyte
*) indices
)[i
]);
746 pc
= emit_element_none( pc
, arrays
, index
);
749 if ( (pc
+ 4) >= gc
->bufEnd
) {
750 pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
753 (void) memcpy( pc
, end_cmd
, 4 );
757 if ( gc
->pc
> gc
->limit
) {
758 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
766 emit_DrawElements_old( GLenum mode
, GLsizei count
, GLenum type
,
767 const GLvoid
*indices
)
769 __GLXcontext
*gc
= __glXGetCurrentContext();
770 const __GLXattribute
* state
=
771 (const __GLXattribute
*)(gc
->client_state_private
);
772 struct array_state_vector
* arrays
= state
->array_state
;
775 size_t elements_per_request
;
776 unsigned total_requests
= 0;
781 pc
= emit_DrawArrays_header_old( gc
, arrays
, & elements_per_request
,
782 & total_requests
, mode
, count
);
789 while ( count
> 0 ) {
790 if ( count
< elements_per_request
) {
791 elements_per_request
= count
;
795 case GL_UNSIGNED_INT
: {
796 const GLuint
* ui_ptr
= (const GLuint
*) indices
;
798 for ( i
= 0 ; i
< elements_per_request
; i
++ ) {
799 const GLint index
= (GLint
) *(ui_ptr
++);
800 pc
= emit_element_old( pc
, arrays
, index
);
804 case GL_UNSIGNED_SHORT
: {
805 const GLushort
* us_ptr
= (const GLushort
*) indices
;
807 for ( i
= 0 ; i
< elements_per_request
; i
++ ) {
808 const GLint index
= (GLint
) *(us_ptr
++);
809 pc
= emit_element_old( pc
, arrays
, index
);
813 case GL_UNSIGNED_BYTE
: {
814 const GLubyte
* ub_ptr
= (const GLubyte
*) indices
;
816 for ( i
= 0 ; i
< elements_per_request
; i
++ ) {
817 const GLint index
= (GLint
) *(ub_ptr
++);
818 pc
= emit_element_old( pc
, arrays
, index
);
824 if ( total_requests
!= 0 ) {
825 __glXSendLargeChunk( gc
, req
, total_requests
, gc
->pc
,
831 count
-= elements_per_request
;
835 assert( (total_requests
== 0) || ((req
- 1) == total_requests
) );
837 if ( total_requests
== 0 ) {
838 assert( pc
<= gc
->bufEnd
);
841 if ( gc
->pc
> gc
->limit
) {
842 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
849 * Validate that the \c mode parameter to \c glDrawArrays, et. al. is valid.
850 * If it is not valid, then an error code is set in the GLX context.
853 * \c GL_TRUE if the argument is valid, \c GL_FALSE if is not.
856 validate_mode(__GLXcontext
*gc
, GLenum mode
)
863 case GL_TRIANGLE_STRIP
:
864 case GL_TRIANGLE_FAN
:
871 __glXSetError(gc
, GL_INVALID_ENUM
);
880 * Validate that the \c count parameter to \c glDrawArrays, et. al. is valid.
881 * A value less than zero is invalid and will result in \c GL_INVALID_VALUE
882 * being set. A value of zero will not result in an error being set, but
883 * will result in \c GL_FALSE being returned.
886 * \c GL_TRUE if the argument is valid, \c GL_FALSE if it is not.
889 validate_count(__GLXcontext
*gc
, GLsizei count
)
892 __glXSetError(gc
, GL_INVALID_VALUE
);
900 * Validate that the \c type parameter to \c glDrawElements, et. al. is
901 * valid. Only \c GL_UNSIGNED_BYTE, \c GL_UNSIGNED_SHORT, and
902 * \c GL_UNSIGNED_INT are valid.
905 * \c GL_TRUE if the argument is valid, \c GL_FALSE if it is not.
907 static GLboolean
validate_type(__GLXcontext
*gc
, GLenum type
)
910 case GL_UNSIGNED_INT
:
911 case GL_UNSIGNED_SHORT
:
912 case GL_UNSIGNED_BYTE
:
915 __glXSetError(gc
, GL_INVALID_ENUM
);
921 void __indirect_glDrawArrays(GLenum mode
, GLint first
, GLsizei count
)
923 __GLXcontext
*gc
= __glXGetCurrentContext();
924 const __GLXattribute
* state
=
925 (const __GLXattribute
*)(gc
->client_state_private
);
926 struct array_state_vector
* arrays
= state
->array_state
;
929 if ( validate_mode(gc
, mode
) && validate_count(gc
, count
) ) {
930 if ( ! arrays
->array_info_cache_valid
) {
931 fill_array_info_cache( arrays
);
934 arrays
->DrawArrays(mode
, first
, count
);
939 void __indirect_glArrayElement(GLint index
)
941 __GLXcontext
*gc
= __glXGetCurrentContext();
942 const __GLXattribute
* state
=
943 (const __GLXattribute
*)(gc
->client_state_private
);
944 struct array_state_vector
* arrays
= state
->array_state
;
946 size_t single_vertex_size
;
949 single_vertex_size
= calculate_single_vertex_size_none( arrays
);
951 if ( (gc
->pc
+ single_vertex_size
) >= gc
->bufEnd
) {
952 gc
->pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
955 gc
->pc
= emit_element_none( gc
->pc
, arrays
, index
);
957 if ( gc
->pc
> gc
->limit
) {
958 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
963 void __indirect_glDrawElements(GLenum mode
, GLsizei count
, GLenum type
,
964 const GLvoid
*indices
)
966 __GLXcontext
*gc
= __glXGetCurrentContext();
967 const __GLXattribute
* state
=
968 (const __GLXattribute
*)(gc
->client_state_private
);
969 struct array_state_vector
* arrays
= state
->array_state
;
972 if ( validate_mode(gc
, mode
) && validate_count(gc
, count
)
973 && validate_type(gc
, type
) ) {
974 if ( ! arrays
->array_info_cache_valid
) {
975 fill_array_info_cache( arrays
);
978 arrays
->DrawElements(mode
, count
, type
, indices
);
983 void __indirect_glDrawRangeElements(GLenum mode
, GLuint start
, GLuint end
,
984 GLsizei count
, GLenum type
,
985 const GLvoid
*indices
)
987 __GLXcontext
*gc
= __glXGetCurrentContext();
988 const __GLXattribute
* state
=
989 (const __GLXattribute
*)(gc
->client_state_private
);
990 struct array_state_vector
* arrays
= state
->array_state
;
993 if ( validate_mode(gc
, mode
) && validate_count(gc
, count
)
994 && validate_type(gc
, type
) ) {
996 __glXSetError(gc
, GL_INVALID_VALUE
);
1000 if ( ! arrays
->array_info_cache_valid
) {
1001 fill_array_info_cache( arrays
);
1004 arrays
->DrawElements(mode
, count
, type
, indices
);
1009 void __indirect_glMultiDrawArraysEXT(GLenum mode
, GLint
*first
, GLsizei
*count
,
1012 __GLXcontext
*gc
= __glXGetCurrentContext();
1013 const __GLXattribute
* state
=
1014 (const __GLXattribute
*)(gc
->client_state_private
);
1015 struct array_state_vector
* arrays
= state
->array_state
;
1019 if ( validate_mode(gc
, mode
) ) {
1020 if ( ! arrays
->array_info_cache_valid
) {
1021 fill_array_info_cache( arrays
);
1024 for ( i
= 0 ; i
< primcount
; i
++ ) {
1025 if ( validate_count( gc
, count
[i
] ) ) {
1026 arrays
->DrawArrays(mode
, first
[i
], count
[i
]);
1033 void __indirect_glMultiDrawElementsEXT(GLenum mode
, const GLsizei
*count
,
1034 GLenum type
, const GLvoid
** indices
,
1037 __GLXcontext
*gc
= __glXGetCurrentContext();
1038 const __GLXattribute
* state
=
1039 (const __GLXattribute
*)(gc
->client_state_private
);
1040 struct array_state_vector
* arrays
= state
->array_state
;
1044 if ( validate_mode(gc
, mode
) && validate_type(gc
, type
) ) {
1045 if ( ! arrays
->array_info_cache_valid
) {
1046 fill_array_info_cache( arrays
);
1049 for ( i
= 0 ; i
< primcount
; i
++ ) {
1050 if ( validate_count( gc
, count
[i
] ) ) {
1051 arrays
->DrawElements(mode
, count
[i
], type
, indices
[i
]);
1058 #define COMMON_ARRAY_DATA_INIT(a, PTR, TYPE, STRIDE, COUNT, NORMALIZED, HDR_SIZE, OPCODE) \
1061 (a)->data_type = TYPE; \
1062 (a)->user_stride = STRIDE; \
1063 (a)->count = COUNT; \
1064 (a)->normalized = NORMALIZED; \
1066 (a)->element_size = __glXTypeSize( TYPE ) * COUNT; \
1067 (a)->true_stride = (STRIDE == 0) \
1068 ? (a)->element_size : STRIDE; \
1070 (a)->header_size = HDR_SIZE; \
1071 ((uint16_t *) (a)->header)[0] = __GLX_PAD((a)->header_size + (a)->element_size); \
1072 ((uint16_t *) (a)->header)[1] = OPCODE; \
1076 void __indirect_glVertexPointer( GLint size
, GLenum type
, GLsizei stride
,
1077 const GLvoid
* pointer
)
1079 static const uint16_t short_ops
[5] = {
1080 0, 0, X_GLrop_Vertex2sv
, X_GLrop_Vertex3sv
, X_GLrop_Vertex4sv
1082 static const uint16_t int_ops
[5] = {
1083 0, 0, X_GLrop_Vertex2iv
, X_GLrop_Vertex3iv
, X_GLrop_Vertex4iv
1085 static const uint16_t float_ops
[5] = {
1086 0, 0, X_GLrop_Vertex2fv
, X_GLrop_Vertex3fv
, X_GLrop_Vertex4fv
1088 static const uint16_t double_ops
[5] = {
1089 0, 0, X_GLrop_Vertex2dv
, X_GLrop_Vertex3dv
, X_GLrop_Vertex4dv
1092 __GLXcontext
*gc
= __glXGetCurrentContext();
1093 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1094 struct array_state_vector
* arrays
= state
->array_state
;
1095 struct array_state
* a
;
1098 if (size
< 2 || size
> 4 || stride
< 0) {
1099 __glXSetError(gc
, GL_INVALID_VALUE
);
1104 case GL_SHORT
: opcode
= short_ops
[size
]; break;
1105 case GL_INT
: opcode
= int_ops
[size
]; break;
1106 case GL_FLOAT
: opcode
= float_ops
[size
]; break;
1107 case GL_DOUBLE
: opcode
= double_ops
[size
]; break;
1109 __glXSetError(gc
, GL_INVALID_ENUM
);
1113 a
= get_array_entry( arrays
, GL_VERTEX_ARRAY
, 0 );
1114 assert( a
!= NULL
);
1115 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, size
, GL_FALSE
, 4,
1119 arrays
->array_info_cache_valid
= GL_FALSE
;
1124 void __indirect_glNormalPointer( GLenum type
, GLsizei stride
,
1125 const GLvoid
* pointer
)
1128 __GLXcontext
*gc
= __glXGetCurrentContext();
1129 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1130 struct array_state_vector
* arrays
= state
->array_state
;
1131 struct array_state
* a
;
1135 __glXSetError(gc
, GL_INVALID_VALUE
);
1140 case GL_BYTE
: opcode
= X_GLrop_Normal3bv
; break;
1141 case GL_SHORT
: opcode
= X_GLrop_Normal3sv
; break;
1142 case GL_INT
: opcode
= X_GLrop_Normal3iv
; break;
1143 case GL_FLOAT
: opcode
= X_GLrop_Normal3fv
; break;
1144 case GL_DOUBLE
: opcode
= X_GLrop_Normal3dv
; break;
1146 __glXSetError(gc
, GL_INVALID_ENUM
);
1150 a
= get_array_entry( arrays
, GL_NORMAL_ARRAY
, 0 );
1151 assert( a
!= NULL
);
1152 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, 3, GL_TRUE
, 4,
1156 arrays
->array_info_cache_valid
= GL_FALSE
;
1161 void __indirect_glColorPointer( GLint size
, GLenum type
, GLsizei stride
,
1162 const GLvoid
* pointer
)
1164 static const uint16_t byte_ops
[5] = {
1165 0, 0, 0, X_GLrop_Color3bv
, X_GLrop_Color4bv
1167 static const uint16_t ubyte_ops
[5] = {
1168 0, 0, 0, X_GLrop_Color3ubv
, X_GLrop_Color4ubv
1170 static const uint16_t short_ops
[5] = {
1171 0, 0, 0, X_GLrop_Color3sv
, X_GLrop_Color4sv
1173 static const uint16_t ushort_ops
[5] = {
1174 0, 0, 0, X_GLrop_Color3usv
, X_GLrop_Color4usv
1176 static const uint16_t int_ops
[5] = {
1177 0, 0, 0, X_GLrop_Color3iv
, X_GLrop_Color4iv
1179 static const uint16_t uint_ops
[5] = {
1180 0, 0, 0, X_GLrop_Color3uiv
, X_GLrop_Color4uiv
1182 static const uint16_t float_ops
[5] = {
1183 0, 0, 0, X_GLrop_Color3fv
, X_GLrop_Color4fv
1185 static const uint16_t double_ops
[5] = {
1186 0, 0, 0, X_GLrop_Color3dv
, X_GLrop_Color4dv
1189 __GLXcontext
*gc
= __glXGetCurrentContext();
1190 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1191 struct array_state_vector
* arrays
= state
->array_state
;
1192 struct array_state
* a
;
1195 if (size
< 3 || size
> 4 || stride
< 0) {
1196 __glXSetError(gc
, GL_INVALID_VALUE
);
1201 case GL_BYTE
: opcode
= byte_ops
[size
]; break;
1202 case GL_UNSIGNED_BYTE
: opcode
= ubyte_ops
[size
]; break;
1203 case GL_SHORT
: opcode
= short_ops
[size
]; break;
1204 case GL_UNSIGNED_SHORT
: opcode
= ushort_ops
[size
]; break;
1205 case GL_INT
: opcode
= int_ops
[size
]; break;
1206 case GL_UNSIGNED_INT
: opcode
= uint_ops
[size
]; break;
1207 case GL_FLOAT
: opcode
= float_ops
[size
]; break;
1208 case GL_DOUBLE
: opcode
= double_ops
[size
]; break;
1210 __glXSetError(gc
, GL_INVALID_ENUM
);
1214 a
= get_array_entry( arrays
, GL_COLOR_ARRAY
, 0 );
1215 assert( a
!= NULL
);
1216 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, size
, GL_TRUE
, 4,
1220 arrays
->array_info_cache_valid
= GL_FALSE
;
1225 void __indirect_glIndexPointer( GLenum type
, GLsizei stride
,
1226 const GLvoid
* pointer
)
1229 __GLXcontext
*gc
= __glXGetCurrentContext();
1230 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1231 struct array_state_vector
* arrays
= state
->array_state
;
1232 struct array_state
* a
;
1236 __glXSetError(gc
, GL_INVALID_VALUE
);
1241 case GL_UNSIGNED_BYTE
: opcode
= X_GLrop_Indexubv
; break;
1242 case GL_SHORT
: opcode
= X_GLrop_Indexsv
; break;
1243 case GL_INT
: opcode
= X_GLrop_Indexiv
; break;
1244 case GL_FLOAT
: opcode
= X_GLrop_Indexfv
; break;
1245 case GL_DOUBLE
: opcode
= X_GLrop_Indexdv
; break;
1247 __glXSetError(gc
, GL_INVALID_ENUM
);
1251 a
= get_array_entry( arrays
, GL_INDEX_ARRAY
, 0 );
1252 assert( a
!= NULL
);
1253 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, 1, GL_FALSE
, 4,
1257 arrays
->array_info_cache_valid
= GL_FALSE
;
1262 void __indirect_glEdgeFlagPointer( GLsizei stride
, const GLvoid
* pointer
)
1264 __GLXcontext
*gc
= __glXGetCurrentContext();
1265 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1266 struct array_state_vector
* arrays
= state
->array_state
;
1267 struct array_state
* a
;
1271 __glXSetError(gc
, GL_INVALID_VALUE
);
1276 a
= get_array_entry( arrays
, GL_EDGE_FLAG_ARRAY
, 0 );
1277 assert( a
!= NULL
);
1278 COMMON_ARRAY_DATA_INIT( a
, pointer
, GL_UNSIGNED_BYTE
, stride
, 1, GL_FALSE
,
1279 4, X_GLrop_EdgeFlagv
);
1282 arrays
->array_info_cache_valid
= GL_FALSE
;
1287 void __indirect_glTexCoordPointer( GLint size
, GLenum type
, GLsizei stride
,
1288 const GLvoid
* pointer
)
1290 static const uint16_t short_ops
[5] = {
1291 0, X_GLrop_TexCoord1sv
, X_GLrop_TexCoord2sv
, X_GLrop_TexCoord3sv
, X_GLrop_TexCoord4sv
1293 static const uint16_t int_ops
[5] = {
1294 0, X_GLrop_TexCoord1iv
, X_GLrop_TexCoord2iv
, X_GLrop_TexCoord3iv
, X_GLrop_TexCoord4iv
1296 static const uint16_t float_ops
[5] = {
1297 0, X_GLrop_TexCoord1dv
, X_GLrop_TexCoord2fv
, X_GLrop_TexCoord3fv
, X_GLrop_TexCoord4fv
1299 static const uint16_t double_ops
[5] = {
1300 0, X_GLrop_TexCoord1dv
, X_GLrop_TexCoord2dv
, X_GLrop_TexCoord3dv
, X_GLrop_TexCoord4dv
1303 static const uint16_t mshort_ops
[5] = {
1304 0, X_GLrop_MultiTexCoord1svARB
, X_GLrop_MultiTexCoord2svARB
, X_GLrop_MultiTexCoord3svARB
, X_GLrop_MultiTexCoord4svARB
1306 static const uint16_t mint_ops
[5] = {
1307 0, X_GLrop_MultiTexCoord1ivARB
, X_GLrop_MultiTexCoord2ivARB
, X_GLrop_MultiTexCoord3ivARB
, X_GLrop_MultiTexCoord4ivARB
1309 static const uint16_t mfloat_ops
[5] = {
1310 0, X_GLrop_MultiTexCoord1dvARB
, X_GLrop_MultiTexCoord2fvARB
, X_GLrop_MultiTexCoord3fvARB
, X_GLrop_MultiTexCoord4fvARB
1312 static const uint16_t mdouble_ops
[5] = {
1313 0, X_GLrop_MultiTexCoord1dvARB
, X_GLrop_MultiTexCoord2dvARB
, X_GLrop_MultiTexCoord3dvARB
, X_GLrop_MultiTexCoord4dvARB
1317 __GLXcontext
*gc
= __glXGetCurrentContext();
1318 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1319 struct array_state_vector
* arrays
= state
->array_state
;
1320 struct array_state
* a
;
1321 unsigned header_size
;
1325 if (size
< 1 || size
> 4 || stride
< 0) {
1326 __glXSetError(gc
, GL_INVALID_VALUE
);
1330 index
= arrays
->active_texture_unit
;
1333 case GL_SHORT
: opcode
= short_ops
[size
]; break;
1334 case GL_INT
: opcode
= int_ops
[size
]; break;
1335 case GL_FLOAT
: opcode
= float_ops
[size
]; break;
1336 case GL_DOUBLE
: opcode
= double_ops
[size
]; break;
1338 __glXSetError(gc
, GL_INVALID_ENUM
);
1346 case GL_SHORT
: opcode
= mshort_ops
[size
]; break;
1347 case GL_INT
: opcode
= mint_ops
[size
]; break;
1348 case GL_FLOAT
: opcode
= mfloat_ops
[size
]; break;
1349 case GL_DOUBLE
: opcode
= mdouble_ops
[size
]; break;
1351 __glXSetError(gc
, GL_INVALID_ENUM
);
1358 a
= get_array_entry( arrays
, GL_TEXTURE_COORD_ARRAY
, index
);
1359 assert( a
!= NULL
);
1360 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, size
, GL_FALSE
,
1361 header_size
, opcode
);
1364 arrays
->array_info_cache_valid
= GL_FALSE
;
1369 void __indirect_glSecondaryColorPointerEXT( GLint size
, GLenum type
, GLsizei stride
,
1370 const GLvoid
* pointer
)
1373 __GLXcontext
*gc
= __glXGetCurrentContext();
1374 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1375 struct array_state_vector
* arrays
= state
->array_state
;
1376 struct array_state
* a
;
1379 if (size
!= 3 || stride
< 0) {
1380 __glXSetError(gc
, GL_INVALID_VALUE
);
1385 case GL_BYTE
: opcode
= 4126; break;
1386 case GL_UNSIGNED_BYTE
: opcode
= 4131; break;
1387 case GL_SHORT
: opcode
= 4127; break;
1388 case GL_UNSIGNED_SHORT
: opcode
= 4132; break;
1389 case GL_INT
: opcode
= 4128; break;
1390 case GL_UNSIGNED_INT
: opcode
= 4133; break;
1391 case GL_FLOAT
: opcode
= 4129; break;
1392 case GL_DOUBLE
: opcode
= 4130; break;
1394 __glXSetError(gc
, GL_INVALID_ENUM
);
1398 a
= get_array_entry( arrays
, GL_SECONDARY_COLOR_ARRAY
, 0 );
1400 __glXSetError(gc
, GL_INVALID_OPERATION
);
1404 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, size
, GL_TRUE
, 4,
1408 arrays
->array_info_cache_valid
= GL_FALSE
;
1413 void __indirect_glFogCoordPointerEXT( GLenum type
, GLsizei stride
,
1414 const GLvoid
* pointer
)
1417 __GLXcontext
*gc
= __glXGetCurrentContext();
1418 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1419 struct array_state_vector
* arrays
= state
->array_state
;
1420 struct array_state
* a
;
1424 __glXSetError(gc
, GL_INVALID_VALUE
);
1429 case GL_FLOAT
: opcode
= 4124; break;
1430 case GL_DOUBLE
: opcode
= 4125; break;
1432 __glXSetError(gc
, GL_INVALID_ENUM
);
1436 a
= get_array_entry( arrays
, GL_FOG_COORD_ARRAY
, 0 );
1438 __glXSetError(gc
, GL_INVALID_OPERATION
);
1442 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, 1, GL_FALSE
, 4,
1446 arrays
->array_info_cache_valid
= GL_FALSE
;
1451 void __indirect_glVertexAttribPointerARB(GLuint index
, GLint size
,
1452 GLenum type
, GLboolean normalized
,
1454 const GLvoid
* pointer
)
1456 static const uint16_t short_ops
[5] = { 0, 4189, 4190, 4191, 4192 };
1457 static const uint16_t float_ops
[5] = { 0, 4193, 4194, 4195, 4196 };
1458 static const uint16_t double_ops
[5] = { 0, 4197, 4198, 4199, 4200 };
1461 __GLXcontext
*gc
= __glXGetCurrentContext();
1462 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1463 struct array_state_vector
* arrays
= state
->array_state
;
1464 struct array_state
* a
;
1465 unsigned true_immediate_count
;
1466 unsigned true_immediate_size
;
1469 if ( (size
< 1) || (size
> 4) || (stride
< 0)
1470 || (index
> arrays
->num_vertex_program_attribs
) ){
1471 __glXSetError(gc
, GL_INVALID_VALUE
);
1475 if ( normalized
&& (type
!= GL_FLOAT
) && (type
!= GL_DOUBLE
)) {
1477 case GL_BYTE
: opcode
= X_GLrop_VertexAttrib4NbvARB
; break;
1478 case GL_UNSIGNED_BYTE
: opcode
= X_GLrop_VertexAttrib4NubvARB
; break;
1479 case GL_SHORT
: opcode
= X_GLrop_VertexAttrib4NsvARB
; break;
1480 case GL_UNSIGNED_SHORT
: opcode
= X_GLrop_VertexAttrib4NusvARB
; break;
1481 case GL_INT
: opcode
= X_GLrop_VertexAttrib4NivARB
; break;
1482 case GL_UNSIGNED_INT
: opcode
= X_GLrop_VertexAttrib4NuivARB
; break;
1484 __glXSetError(gc
, GL_INVALID_ENUM
);
1488 true_immediate_count
= 4;
1491 true_immediate_count
= size
;
1495 opcode
= X_GLrop_VertexAttrib4bvARB
;
1496 true_immediate_count
= 4;
1498 case GL_UNSIGNED_BYTE
:
1499 opcode
= X_GLrop_VertexAttrib4ubvARB
;
1500 true_immediate_count
= 4;
1503 opcode
= short_ops
[size
];
1505 case GL_UNSIGNED_SHORT
:
1506 opcode
= X_GLrop_VertexAttrib4usvARB
;
1507 true_immediate_count
= 4;
1510 opcode
= X_GLrop_VertexAttrib4ivARB
;
1511 true_immediate_count
= 4;
1513 case GL_UNSIGNED_INT
:
1514 opcode
= X_GLrop_VertexAttrib4uivARB
;
1515 true_immediate_count
= 4;
1518 opcode
= float_ops
[size
];
1521 opcode
= double_ops
[size
];
1524 __glXSetError(gc
, GL_INVALID_ENUM
);
1529 a
= get_array_entry( arrays
, GL_VERTEX_ATTRIB_ARRAY_POINTER
, index
);
1531 __glXSetError(gc
, GL_INVALID_OPERATION
);
1535 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, size
, normalized
, 8,
1538 true_immediate_size
= __glXTypeSize(type
) * true_immediate_count
;
1539 ((uint16_t *) (a
)->header
)[0] = __GLX_PAD(a
->header_size
1540 + true_immediate_size
);
1543 arrays
->array_info_cache_valid
= GL_FALSE
;
1549 * I don't have 100% confidence that this is correct. The different rules
1550 * about whether or not generic vertex attributes alias "classic" vertex
1551 * attributes (i.e., attrib1 ?= primary color) between ARB_vertex_program,
1552 * ARB_vertex_shader, and NV_vertex_program are a bit confusing. My
1553 * feeling is that the client-side doesn't have to worry about it. The
1554 * client just sends all the data to the server and lets the server deal
1557 void __indirect_glVertexAttribPointerNV( GLuint index
, GLint size
,
1558 GLenum type
, GLsizei stride
,
1559 const GLvoid
* pointer
)
1561 __GLXcontext
*gc
= __glXGetCurrentContext();
1562 GLboolean normalized
= GL_FALSE
;
1566 case GL_UNSIGNED_BYTE
:
1568 __glXSetError(gc
, GL_INVALID_VALUE
);
1571 normalized
= GL_TRUE
;
1576 __indirect_glVertexAttribPointerARB(index
, size
, type
,
1581 __glXSetError(gc
, GL_INVALID_ENUM
);
1587 void __indirect_glClientActiveTextureARB(GLenum texture
)
1589 __GLXcontext
* const gc
= __glXGetCurrentContext();
1590 __GLXattribute
* const state
= (__GLXattribute
*)(gc
->client_state_private
);
1591 struct array_state_vector
* const arrays
= state
->array_state
;
1592 const GLint unit
= (GLint
) texture
- GL_TEXTURE0
;
1595 if ( (unit
< 0) || (unit
> arrays
->num_texture_units
) ) {
1596 __glXSetError(gc
, GL_INVALID_ENUM
);
1600 arrays
->active_texture_unit
= unit
;
1607 __glXSetArrayEnable( __GLXattribute
* state
,
1608 GLenum key
, unsigned index
, GLboolean enable
)
1610 struct array_state_vector
* arrays
= state
->array_state
;
1611 struct array_state
* a
;
1614 if ( key
== GL_TEXTURE_COORD_ARRAY
) {
1615 index
= arrays
->active_texture_unit
;
1618 a
= get_array_entry( arrays
, key
, index
);
1620 if ( (a
!= NULL
) && (a
->enabled
!= enable
) ) {
1621 a
->enabled
= enable
;
1622 arrays
->array_info_cache_valid
= GL_FALSE
;
1630 __glXArrayDisableAll( __GLXattribute
* state
)
1632 struct array_state_vector
* arrays
= state
->array_state
;
1636 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
1637 arrays
->arrays
[i
].enabled
= GL_FALSE
;
1640 arrays
->array_info_cache_valid
= GL_FALSE
;
1647 __glXGetArrayEnable( const __GLXattribute
* const state
,
1648 GLenum key
, unsigned index
, GLintptr
* dest
)
1650 const struct array_state_vector
* arrays
= state
->array_state
;
1651 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1655 *dest
= (GLintptr
) a
->enabled
;
1665 __glXGetArrayType( const __GLXattribute
* const state
,
1666 GLenum key
, unsigned index
, GLintptr
* dest
)
1668 const struct array_state_vector
* arrays
= state
->array_state
;
1669 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1673 *dest
= (GLintptr
) a
->enabled
;
1683 __glXGetArraySize( const __GLXattribute
* const state
,
1684 GLenum key
, unsigned index
, GLintptr
* dest
)
1686 const struct array_state_vector
* arrays
= state
->array_state
;
1687 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1691 *dest
= (GLintptr
) a
->count
;
1701 __glXGetArrayStride( const __GLXattribute
* const state
,
1702 GLenum key
, unsigned index
, GLintptr
* dest
)
1704 const struct array_state_vector
* arrays
= state
->array_state
;
1705 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1709 *dest
= (GLintptr
) a
->user_stride
;
1719 __glXGetArrayPointer( const __GLXattribute
* const state
,
1720 GLenum key
, unsigned index
, void ** dest
)
1722 const struct array_state_vector
* arrays
= state
->array_state
;
1723 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1728 *dest
= (void *) (a
->data
);
1738 __glXGetArrayNormalized( const __GLXattribute
* const state
,
1739 GLenum key
, unsigned index
, GLintptr
* dest
)
1741 const struct array_state_vector
* arrays
= state
->array_state
;
1742 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1747 *dest
= (GLintptr
) a
->normalized
;
1757 __glXGetActiveTextureUnit( const __GLXattribute
* const state
)
1759 return state
->array_state
->active_texture_unit
;
1764 __glXPushArrayState( __GLXattribute
* state
)
1766 struct array_state_vector
* arrays
= state
->array_state
;
1767 struct array_stack_state
* stack
= & arrays
->stack
[ (arrays
->stack_index
* arrays
->num_arrays
)];
1771 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
1772 stack
[i
].data
= arrays
->arrays
[i
].data
;
1773 stack
[i
].data_type
= arrays
->arrays
[i
].data_type
;
1774 stack
[i
].user_stride
= arrays
->arrays
[i
].user_stride
;
1775 stack
[i
].count
= arrays
->arrays
[i
].count
;
1776 stack
[i
].key
= arrays
->arrays
[i
].key
;
1777 stack
[i
].enabled
= arrays
->arrays
[i
].enabled
;
1780 arrays
->active_texture_unit_stack
[ arrays
->stack_index
] =
1781 arrays
->active_texture_unit
;
1783 arrays
->stack_index
++;
1788 __glXPopArrayState( __GLXattribute
* state
)
1790 struct array_state_vector
* arrays
= state
->array_state
;
1791 struct array_stack_state
* stack
;
1795 arrays
->stack_index
--;
1796 stack
= & arrays
->stack
[ (arrays
->stack_index
* arrays
->num_arrays
) ];
1798 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
1799 switch ( stack
[i
].key
) {
1800 case GL_NORMAL_ARRAY
:
1801 __indirect_glNormalPointer( stack
[i
].data_type
,
1802 stack
[i
].user_stride
,
1805 case GL_COLOR_ARRAY
:
1806 __indirect_glColorPointer( stack
[i
].count
,
1808 stack
[i
].user_stride
,
1811 case GL_INDEX_ARRAY
:
1812 __indirect_glIndexPointer( stack
[i
].data_type
,
1813 stack
[i
].user_stride
,
1816 case GL_EDGE_FLAG_ARRAY
:
1817 __indirect_glEdgeFlagPointer( stack
[i
].user_stride
,
1820 case GL_TEXTURE_COORD_ARRAY
:
1821 arrays
->active_texture_unit
= stack
[i
].index
;
1822 __indirect_glTexCoordPointer( stack
[i
].count
,
1824 stack
[i
].user_stride
,
1827 case GL_SECONDARY_COLOR_ARRAY
:
1828 __indirect_glSecondaryColorPointerEXT( stack
[i
].count
,
1830 stack
[i
].user_stride
,
1833 case GL_FOG_COORDINATE_ARRAY
:
1834 __indirect_glFogCoordPointerEXT( stack
[i
].data_type
,
1835 stack
[i
].user_stride
,
1841 __glXSetArrayEnable( state
, stack
[i
].key
, stack
[i
].index
,
1845 arrays
->active_texture_unit
=
1846 arrays
->active_texture_unit_stack
[ arrays
->stack_index
];