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 int texture_units
= 1, vertex_program_attribs
= 0;
129 GLboolean got_fog
= GL_FALSE
;
130 GLboolean got_secondary_color
= GL_FALSE
;
133 arrays
= calloc( 1, sizeof( struct array_state_vector
) );
134 state
->array_state
= arrays
;
136 arrays
->old_DrawArrays_possible
= !state
->NoDrawArraysProtocol
;
137 arrays
->new_DrawArrays_possible
= GL_FALSE
;
138 arrays
->DrawArrays
= NULL
;
140 arrays
->active_texture_unit
= 0;
143 /* Determine how many arrays are actually needed. Only arrays that
144 * are supported by the server are create. For example, if the server
145 * supports only 2 texture units, then only 2 texture coordinate arrays
148 * At the very least, GL_VERTEX_ARRAY, GL_NORMAL_ARRAY,
149 * GL_COLOR_ARRAY, GL_INDEX_ARRAY, GL_TEXTURE_COORD_ARRAY, and
150 * GL_EDGE_FLAG_ARRAY are supported.
155 if ( __glExtensionBitIsEnabled( gc
, GL_EXT_fog_coord_bit
)
156 || (gc
->server_major
> 1) || (gc
->server_minor
>= 4) ) {
161 if ( __glExtensionBitIsEnabled( gc
, GL_EXT_secondary_color_bit
)
162 || (gc
->server_major
> 1) || (gc
->server_minor
>= 4) ) {
163 got_secondary_color
= GL_TRUE
;
167 if ( __glExtensionBitIsEnabled( gc
, GL_ARB_multitexture_bit
)
168 || (gc
->server_major
> 1) || (gc
->server_minor
>= 3) ) {
169 __indirect_glGetIntegerv( GL_MAX_TEXTURE_UNITS
, & texture_units
);
172 if ( __glExtensionBitIsEnabled( gc
, GL_ARB_vertex_program_bit
) ) {
173 __indirect_glGetProgramivARB( GL_VERTEX_PROGRAM_ARB
,
174 GL_MAX_PROGRAM_ATTRIBS_ARB
,
175 & vertex_program_attribs
);
178 arrays
->num_texture_units
= texture_units
;
179 arrays
->num_vertex_program_attribs
= vertex_program_attribs
;
180 array_count
+= texture_units
+ vertex_program_attribs
;
181 arrays
->num_arrays
= array_count
;
182 arrays
->arrays
= calloc( array_count
, sizeof( struct array_state
) );
184 arrays
->arrays
[0].data_type
= GL_FLOAT
;
185 arrays
->arrays
[0].count
= 3;
186 arrays
->arrays
[0].key
= GL_NORMAL_ARRAY
;
187 arrays
->arrays
[0].normalized
= GL_TRUE
;
188 arrays
->arrays
[0].old_DrawArrays_possible
= GL_TRUE
;
190 arrays
->arrays
[1].data_type
= GL_FLOAT
;
191 arrays
->arrays
[1].count
= 4;
192 arrays
->arrays
[1].key
= GL_COLOR_ARRAY
;
193 arrays
->arrays
[1].normalized
= GL_TRUE
;
194 arrays
->arrays
[1].old_DrawArrays_possible
= GL_TRUE
;
196 arrays
->arrays
[2].data_type
= GL_FLOAT
;
197 arrays
->arrays
[2].count
= 1;
198 arrays
->arrays
[2].key
= GL_INDEX_ARRAY
;
199 arrays
->arrays
[2].old_DrawArrays_possible
= GL_TRUE
;
201 arrays
->arrays
[3].data_type
= GL_UNSIGNED_BYTE
;
202 arrays
->arrays
[3].count
= 1;
203 arrays
->arrays
[3].key
= GL_EDGE_FLAG_ARRAY
;
204 arrays
->arrays
[3].old_DrawArrays_possible
= GL_TRUE
;
206 for ( i
= 0 ; i
< texture_units
; i
++ ) {
207 arrays
->arrays
[4 + i
].data_type
= GL_FLOAT
;
208 arrays
->arrays
[4 + i
].count
= 4;
209 arrays
->arrays
[4 + i
].key
= GL_TEXTURE_COORD_ARRAY
;
211 arrays
->arrays
[4 + i
].old_DrawArrays_possible
= (i
== 0);
212 arrays
->arrays
[4 + i
].index
= i
;
214 arrays
->arrays
[4 + i
].header
[1] = i
+ GL_TEXTURE0
;
217 i
= 4 + texture_units
;
220 arrays
->arrays
[i
].data_type
= GL_FLOAT
;
221 arrays
->arrays
[i
].count
= 1;
222 arrays
->arrays
[i
].key
= GL_FOG_COORDINATE_ARRAY
;
223 arrays
->arrays
[i
].old_DrawArrays_possible
= GL_TRUE
;
227 if ( got_secondary_color
) {
228 arrays
->arrays
[i
].data_type
= GL_FLOAT
;
229 arrays
->arrays
[i
].count
= 3;
230 arrays
->arrays
[i
].key
= GL_SECONDARY_COLOR_ARRAY
;
231 arrays
->arrays
[i
].old_DrawArrays_possible
= GL_TRUE
;
232 arrays
->arrays
[i
].normalized
= GL_TRUE
;
237 for ( j
= 0 ; j
< vertex_program_attribs
; j
++ ) {
238 const unsigned idx
= (vertex_program_attribs
- (j
+ 1));
241 arrays
->arrays
[idx
+ i
].data_type
= GL_FLOAT
;
242 arrays
->arrays
[idx
+ i
].count
= 4;
243 arrays
->arrays
[idx
+ i
].key
= GL_VERTEX_ATTRIB_ARRAY_POINTER
;
245 arrays
->arrays
[idx
+ i
].old_DrawArrays_possible
= 0;
246 arrays
->arrays
[idx
+ i
].index
= idx
;
248 arrays
->arrays
[idx
+ i
].header
[1] = idx
;
251 i
+= vertex_program_attribs
;
254 /* Vertex array *must* be last becuase of the way that
255 * emit_DrawArrays_none works.
258 arrays
->arrays
[i
].data_type
= GL_FLOAT
;
259 arrays
->arrays
[i
].count
= 4;
260 arrays
->arrays
[i
].key
= GL_VERTEX_ARRAY
;
261 arrays
->arrays
[i
].old_DrawArrays_possible
= GL_TRUE
;
263 assert( (i
+ 1) == arrays
->num_arrays
);
265 arrays
->stack_index
= 0;
266 arrays
->stack
= malloc( sizeof( struct array_stack_state
)
267 * arrays
->num_arrays
);
272 * Calculate the size of a single vertex for the "none" protocol. This is
273 * essentially the size of all the immediate-mode commands required to
274 * implement the enabled vertex arrays.
277 calculate_single_vertex_size_none( const struct array_state_vector
* arrays
)
279 size_t single_vertex_size
= 0;
283 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
284 if ( arrays
->arrays
[i
].enabled
) {
285 single_vertex_size
+= ((uint16_t *)arrays
->arrays
[i
].header
)[0];
289 return single_vertex_size
;
294 * Emit a single element using non-DrawArrays protocol.
297 emit_element_none( GLubyte
* dst
,
298 const struct array_state_vector
* arrays
,
304 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
305 if ( arrays
->arrays
[i
].enabled
) {
306 const size_t offset
= index
* arrays
->arrays
[i
].true_stride
;
308 /* The generic attributes can have more data than is in the
309 * elements. This is because a vertex array can be a 2 element,
310 * normalized, unsigned short, but the "closest" immediate mode
311 * protocol is for a 4Nus. Since the sizes are small, the
312 * performance impact on modern processors should be negligible.
314 (void) memset( dst
, 0,
315 ((uint16_t *)arrays
->arrays
[i
].header
)[0] );
317 (void) memcpy( dst
, arrays
->arrays
[i
].header
,
318 arrays
->arrays
[i
].header_size
);
320 dst
+= arrays
->arrays
[i
].header_size
;
322 (void) memcpy( dst
, ((GLubyte
*) arrays
->arrays
[i
].data
) + offset
,
323 arrays
->arrays
[i
].element_size
);
325 dst
+= __GLX_PAD( arrays
->arrays
[i
].element_size
);
334 * Emit a single element using "old" DrawArrays protocol from
335 * EXT_vertex_arrays / OpenGL 1.1.
338 emit_element_old( GLubyte
* dst
,
339 const struct array_state_vector
* arrays
,
345 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
346 if ( arrays
->arrays
[i
].enabled
) {
347 const size_t offset
= index
* arrays
->arrays
[i
].true_stride
;
349 (void) memcpy( dst
, ((GLubyte
*) arrays
->arrays
[i
].data
) + offset
,
350 arrays
->arrays
[i
].element_size
);
352 dst
+= __GLX_PAD( arrays
->arrays
[i
].element_size
);
361 get_array_entry( const struct array_state_vector
* arrays
,
362 GLenum key
, unsigned index
)
366 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
367 if ( (arrays
->arrays
[i
].key
== key
)
368 && (arrays
->arrays
[i
].index
== index
) ) {
369 return & arrays
->arrays
[i
];
378 allocate_array_info_cache( struct array_state_vector
* arrays
,
379 size_t required_size
)
381 #define MAX_HEADER_SIZE 20
382 if ( arrays
->array_info_cache_buffer_size
< required_size
) {
383 GLubyte
* temp
= realloc( arrays
->array_info_cache_base
,
384 required_size
+ MAX_HEADER_SIZE
);
386 if ( temp
== NULL
) {
390 arrays
->array_info_cache_base
= temp
;
391 arrays
->array_info_cache
= temp
+ MAX_HEADER_SIZE
;
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
;
421 if ( arrays
->new_DrawArrays_possible
) {
422 assert( ! arrays
->new_DrawArrays_possible
);
424 else if ( old_DrawArrays_possible
) {
425 const size_t required_size
= arrays
->enabled_client_array_count
* 12;
429 if ( ! allocate_array_info_cache( arrays
, required_size
) ) {
434 info
= (uint32_t *) arrays
->array_info_cache
;
435 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
436 if ( arrays
->arrays
[i
].enabled
) {
437 *(info
++) = arrays
->arrays
[i
].data_type
;
438 *(info
++) = arrays
->arrays
[i
].count
;
439 *(info
++) = arrays
->arrays
[i
].key
;
443 arrays
->DrawArrays
= emit_DrawArrays_old
;
444 arrays
->DrawElements
= emit_DrawElements_old
;
447 arrays
->DrawArrays
= emit_DrawArrays_none
;
448 arrays
->DrawElements
= emit_DrawElements_none
;
451 arrays
->array_info_cache_valid
= GL_TRUE
;
456 * Emit a \c glDrawArrays command using the "none" protocol. That is,
457 * emit immediate-mode commands that are equivalent to the requiested
458 * \c glDrawArrays command. This is used with servers that don't support
459 * the OpenGL 1.1 / EXT_vertex_arrays DrawArrays protocol or in cases where
460 * vertex state is enabled that is not compatible with that protocol.
463 emit_DrawArrays_none( GLenum mode
, GLint first
, GLsizei count
)
465 __GLXcontext
*gc
= __glXGetCurrentContext();
466 const __GLXattribute
* state
=
467 (const __GLXattribute
*)(gc
->client_state_private
);
468 struct array_state_vector
* arrays
= state
->array_state
;
470 size_t single_vertex_size
;
473 static const uint16_t begin_cmd
[2] = { 8, X_GLrop_Begin
};
474 static const uint16_t end_cmd
[2] = { 4, X_GLrop_End
};
477 single_vertex_size
= calculate_single_vertex_size_none( arrays
);
481 (void) memcpy( pc
, begin_cmd
, 4 );
482 *(int *)(pc
+ 4) = mode
;
486 for ( i
= 0 ; i
< count
; i
++ ) {
487 if ( (pc
+ single_vertex_size
) >= gc
->bufEnd
) {
488 pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
491 pc
= emit_element_none( pc
, arrays
, first
+ i
);
494 if ( (pc
+ 4) >= gc
->bufEnd
) {
495 pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
498 (void) memcpy( pc
, end_cmd
, 4 );
502 if ( gc
->pc
> gc
->limit
) {
503 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
509 * Emit the header data for the GL 1.1 / EXT_vertex_arrays DrawArrays
512 * \param gc GLX context.
513 * \param arrays Array state.
514 * \param elements_per_request Location to store the number of elements that
515 * can fit in a single Render / RenderLarge
517 * \param total_request Total number of requests for a RenderLarge
518 * command. If a Render command is used, this
520 * \param mode Drawing mode.
521 * \param count Number of vertices.
524 * A pointer to the buffer for array data.
527 emit_DrawArrays_header_old( __GLXcontext
* gc
,
528 struct array_state_vector
* arrays
,
529 size_t * elements_per_request
,
530 size_t * total_requests
,
531 GLenum mode
, GLsizei count
)
534 size_t single_vertex_size
;
535 const unsigned header_size
= 16;
540 /* Determine the size of the whole command. This includes the header,
541 * the ARRAY_INFO data and the array data. Once this size is calculated,
542 * it will be known whether a Render or RenderLarge command is needed.
545 single_vertex_size
= 0;
546 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
547 if ( arrays
->arrays
[i
].enabled
) {
548 single_vertex_size
+= __GLX_PAD( arrays
->arrays
[i
].element_size
);
552 command_size
= arrays
->array_info_cache_size
+ header_size
553 + (single_vertex_size
* count
);
556 /* Write the header for either a Render command or a RenderLarge
557 * command. After the header is written, write the ARRAY_INFO data.
560 if ( command_size
> gc
->maxSmallRenderCommandSize
) {
561 /* maxSize is the maximum amount of data can be stuffed into a single
562 * packet. sz_xGLXRenderReq is added because bufSize is the maximum
563 * packet size minus sz_xGLXRenderReq.
565 const size_t maxSize
= (gc
->bufSize
+ sz_xGLXRenderReq
)
566 - sz_xGLXRenderLargeReq
;
567 unsigned vertex_requests
;
570 /* Calculate the number of data packets that will be required to send
571 * the whole command. To do this, the number of verticies that
572 * will fit in a single buffer must be calculated.
574 * The important value here is elements_per_request. This is the
575 * number of complete array elements that will fit in a single
576 * buffer. There may be some wasted space at the end of the buffer,
577 * but splitting elements across buffer boundries would be painful.
580 elements_per_request
[0] = maxSize
/ single_vertex_size
;
582 vertex_requests
= (count
+ elements_per_request
[0] - 1)
583 / elements_per_request
[0];
585 *total_requests
= vertex_requests
+ 1;
588 __glXFlushRenderBuffer(gc
, gc
->pc
);
592 pc
= ((GLubyte
*) arrays
->array_info_cache
) - (header_size
+ 4);
593 *(uint32_t *)(pc
+ 0) = command_size
;
594 *(uint32_t *)(pc
+ 4) = X_GLrop_DrawArrays
;
595 *(uint32_t *)(pc
+ 8) = count
;
596 *(uint32_t *)(pc
+ 12) = arrays
->enabled_client_array_count
;
597 *(uint32_t *)(pc
+ 16) = mode
;
599 __glXSendLargeChunk( gc
, 1, *total_requests
, pc
,
600 header_size
+ 4 + arrays
->array_info_cache_size
);
605 if ( (gc
->pc
+ command_size
) >= gc
->bufEnd
) {
606 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
610 *(uint16_t *)(pc
+ 0) = command_size
;
611 *(uint16_t *)(pc
+ 2) = X_GLrop_DrawArrays
;
612 *(uint32_t *)(pc
+ 4) = count
;
613 *(uint32_t *)(pc
+ 8) = arrays
->enabled_client_array_count
;
614 *(uint32_t *)(pc
+ 12) = mode
;
618 (void) memcpy( pc
, arrays
->array_info_cache
,
619 arrays
->array_info_cache_size
);
620 pc
+= arrays
->array_info_cache_size
;
622 *elements_per_request
= count
;
634 emit_DrawArrays_old( GLenum mode
, GLint first
, GLsizei count
)
636 __GLXcontext
*gc
= __glXGetCurrentContext();
637 const __GLXattribute
* state
=
638 (const __GLXattribute
*)(gc
->client_state_private
);
639 struct array_state_vector
* arrays
= state
->array_state
;
642 size_t elements_per_request
;
643 size_t total_requests
= 0;
645 size_t total_sent
= 0;
648 pc
= emit_DrawArrays_header_old( gc
, arrays
, & elements_per_request
,
649 & total_requests
, mode
, count
);
655 if ( total_requests
== 0 ) {
656 assert( elements_per_request
>= count
);
658 for ( i
= 0 ; i
< count
; i
++ ) {
659 pc
= emit_element_old( pc
, arrays
, i
+ first
);
662 assert( pc
<= gc
->bufEnd
);
665 if ( gc
->pc
> gc
->limit
) {
666 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
673 for ( req
= 2 ; req
<= total_requests
; req
++ ) {
674 if ( count
< elements_per_request
) {
675 elements_per_request
= count
;
679 for ( i
= 0 ; i
< elements_per_request
; i
++ ) {
680 pc
= emit_element_old( pc
, arrays
, i
+ first
);
683 first
+= elements_per_request
;
685 total_sent
+= (size_t) (pc
- gc
->pc
);
686 __glXSendLargeChunk( gc
, req
, total_requests
, gc
->pc
,
689 count
-= elements_per_request
;
696 emit_DrawElements_none( GLenum mode
, GLsizei count
, GLenum type
,
697 const GLvoid
*indices
)
699 __GLXcontext
*gc
= __glXGetCurrentContext();
700 const __GLXattribute
* state
=
701 (const __GLXattribute
*)(gc
->client_state_private
);
702 struct array_state_vector
* arrays
= state
->array_state
;
703 static const uint16_t begin_cmd
[2] = { 8, X_GLrop_Begin
};
704 static const uint16_t end_cmd
[2] = { 4, X_GLrop_End
};
707 size_t single_vertex_size
;
711 single_vertex_size
= calculate_single_vertex_size_none( arrays
);
714 if ( (gc
->pc
+ single_vertex_size
) >= gc
->bufEnd
) {
715 gc
->pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
720 (void) memcpy( pc
, begin_cmd
, 4 );
721 *(int *)(pc
+ 4) = mode
;
725 for ( i
= 0 ; i
< count
; i
++ ) {
728 if ( (pc
+ single_vertex_size
) >= gc
->bufEnd
) {
729 pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
733 case GL_UNSIGNED_INT
:
734 index
= (unsigned) (((GLuint
*) indices
)[i
]);
736 case GL_UNSIGNED_SHORT
:
737 index
= (unsigned) (((GLushort
*) indices
)[i
]);
739 case GL_UNSIGNED_BYTE
:
740 index
= (unsigned) (((GLubyte
*) indices
)[i
]);
743 pc
= emit_element_none( pc
, arrays
, index
);
746 if ( (pc
+ 4) >= gc
->bufEnd
) {
747 pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
750 (void) memcpy( pc
, end_cmd
, 4 );
754 if ( gc
->pc
> gc
->limit
) {
755 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
763 emit_DrawElements_old( GLenum mode
, GLsizei count
, GLenum type
,
764 const GLvoid
*indices
)
766 __GLXcontext
*gc
= __glXGetCurrentContext();
767 const __GLXattribute
* state
=
768 (const __GLXattribute
*)(gc
->client_state_private
);
769 struct array_state_vector
* arrays
= state
->array_state
;
772 size_t elements_per_request
;
773 size_t total_requests
= 0;
778 pc
= emit_DrawArrays_header_old( gc
, arrays
, & elements_per_request
,
779 & total_requests
, mode
, count
);
786 while ( count
> 0 ) {
787 if ( count
< elements_per_request
) {
788 elements_per_request
= count
;
792 case GL_UNSIGNED_INT
: {
793 const GLuint
* ui_ptr
= (const GLuint
*) indices
;
795 for ( i
= 0 ; i
< elements_per_request
; i
++ ) {
796 const GLint index
= (GLint
) *(ui_ptr
++);
797 pc
= emit_element_old( pc
, arrays
, index
);
801 case GL_UNSIGNED_SHORT
: {
802 const GLushort
* us_ptr
= (const GLushort
*) indices
;
804 for ( i
= 0 ; i
< elements_per_request
; i
++ ) {
805 const GLint index
= (GLint
) *(us_ptr
++);
806 pc
= emit_element_old( pc
, arrays
, index
);
810 case GL_UNSIGNED_BYTE
: {
811 const GLubyte
* ub_ptr
= (const GLubyte
*) indices
;
813 for ( i
= 0 ; i
< elements_per_request
; i
++ ) {
814 const GLint index
= (GLint
) *(ub_ptr
++);
815 pc
= emit_element_old( pc
, arrays
, index
);
821 if ( total_requests
!= 0 ) {
822 __glXSendLargeChunk( gc
, req
, total_requests
, gc
->pc
,
828 count
-= elements_per_request
;
832 assert( (total_requests
== 0) || ((req
- 1) == total_requests
) );
834 if ( total_requests
== 0 ) {
835 assert( pc
<= gc
->bufEnd
);
838 if ( gc
->pc
> gc
->limit
) {
839 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
846 * Validate that the \c mode parameter to \c glDrawArrays, et. al. is valid.
847 * If it is not valid, then an error code is set in the GLX context.
850 * \c GL_TRUE if the argument is valid, \c GL_FALSE if is not.
853 validate_mode(__GLXcontext
*gc
, GLenum mode
)
860 case GL_TRIANGLE_STRIP
:
861 case GL_TRIANGLE_FAN
:
868 __glXSetError(gc
, GL_INVALID_ENUM
);
877 * Validate that the \c count parameter to \c glDrawArrays, et. al. is valid.
878 * A value less than zero is invalid and will result in \c GL_INVALID_VALUE
879 * being set. A value of zero will not result in an error being set, but
880 * will result in \c GL_FALSE being returned.
883 * \c GL_TRUE if the argument is valid, \c GL_FALSE if it is not.
886 validate_count(__GLXcontext
*gc
, GLsizei count
)
889 __glXSetError(gc
, GL_INVALID_VALUE
);
897 * Validate that the \c type parameter to \c glDrawElements, et. al. is
898 * valid. Only \c GL_UNSIGNED_BYTE, \c GL_UNSIGNED_SHORT, and
899 * \c GL_UNSIGNED_INT are valid.
902 * \c GL_TRUE if the argument is valid, \c GL_FALSE if it is not.
904 static GLboolean
validate_type(__GLXcontext
*gc
, GLenum type
)
907 case GL_UNSIGNED_INT
:
908 case GL_UNSIGNED_SHORT
:
909 case GL_UNSIGNED_BYTE
:
912 __glXSetError(gc
, GL_INVALID_ENUM
);
918 void __indirect_glDrawArrays(GLenum mode
, GLint first
, GLsizei count
)
920 __GLXcontext
*gc
= __glXGetCurrentContext();
921 const __GLXattribute
* state
=
922 (const __GLXattribute
*)(gc
->client_state_private
);
923 struct array_state_vector
* arrays
= state
->array_state
;
926 if ( validate_mode(gc
, mode
) && validate_count(gc
, count
) ) {
927 if ( ! arrays
->array_info_cache_valid
) {
928 fill_array_info_cache( arrays
);
931 arrays
->DrawArrays(mode
, first
, count
);
936 void __indirect_glArrayElement(GLint index
)
938 __GLXcontext
*gc
= __glXGetCurrentContext();
939 const __GLXattribute
* state
=
940 (const __GLXattribute
*)(gc
->client_state_private
);
941 struct array_state_vector
* arrays
= state
->array_state
;
943 size_t single_vertex_size
;
946 single_vertex_size
= calculate_single_vertex_size_none( arrays
);
948 if ( (gc
->pc
+ single_vertex_size
) >= gc
->bufEnd
) {
949 gc
->pc
= __glXFlushRenderBuffer(gc
, gc
->pc
);
952 gc
->pc
= emit_element_none( gc
->pc
, arrays
, index
);
954 if ( gc
->pc
> gc
->limit
) {
955 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
960 void __indirect_glDrawElements(GLenum mode
, GLsizei count
, GLenum type
,
961 const GLvoid
*indices
)
963 __GLXcontext
*gc
= __glXGetCurrentContext();
964 const __GLXattribute
* state
=
965 (const __GLXattribute
*)(gc
->client_state_private
);
966 struct array_state_vector
* arrays
= state
->array_state
;
969 if ( validate_mode(gc
, mode
) && validate_count(gc
, count
)
970 && validate_type(gc
, type
) ) {
971 if ( ! arrays
->array_info_cache_valid
) {
972 fill_array_info_cache( arrays
);
975 arrays
->DrawElements(mode
, count
, type
, indices
);
980 void __indirect_glDrawRangeElements(GLenum mode
, GLuint start
, GLuint end
,
981 GLsizei count
, GLenum type
,
982 const GLvoid
*indices
)
984 __GLXcontext
*gc
= __glXGetCurrentContext();
985 const __GLXattribute
* state
=
986 (const __GLXattribute
*)(gc
->client_state_private
);
987 struct array_state_vector
* arrays
= state
->array_state
;
990 if ( validate_mode(gc
, mode
) && validate_count(gc
, count
)
991 && validate_type(gc
, type
) ) {
993 __glXSetError(gc
, GL_INVALID_VALUE
);
997 if ( ! arrays
->array_info_cache_valid
) {
998 fill_array_info_cache( arrays
);
1001 arrays
->DrawElements(mode
, count
, type
, indices
);
1006 void __indirect_glMultiDrawArraysEXT(GLenum mode
, GLint
*first
, GLsizei
*count
,
1009 __GLXcontext
*gc
= __glXGetCurrentContext();
1010 const __GLXattribute
* state
=
1011 (const __GLXattribute
*)(gc
->client_state_private
);
1012 struct array_state_vector
* arrays
= state
->array_state
;
1016 if ( validate_mode(gc
, mode
) ) {
1017 if ( ! arrays
->array_info_cache_valid
) {
1018 fill_array_info_cache( arrays
);
1021 for ( i
= 0 ; i
< primcount
; i
++ ) {
1022 if ( validate_count( gc
, count
[i
] ) ) {
1023 arrays
->DrawArrays(mode
, first
[i
], count
[i
]);
1030 void __indirect_glMultiDrawElementsEXT(GLenum mode
, const GLsizei
*count
,
1031 GLenum type
, const GLvoid
** indices
,
1034 __GLXcontext
*gc
= __glXGetCurrentContext();
1035 const __GLXattribute
* state
=
1036 (const __GLXattribute
*)(gc
->client_state_private
);
1037 struct array_state_vector
* arrays
= state
->array_state
;
1041 if ( validate_mode(gc
, mode
) && validate_type(gc
, type
) ) {
1042 if ( ! arrays
->array_info_cache_valid
) {
1043 fill_array_info_cache( arrays
);
1046 for ( i
= 0 ; i
< primcount
; i
++ ) {
1047 if ( validate_count( gc
, count
[i
] ) ) {
1048 arrays
->DrawElements(mode
, count
[i
], type
, indices
[i
]);
1055 #define COMMON_ARRAY_DATA_INIT(a, PTR, TYPE, STRIDE, COUNT, NORMALIZED, HDR_SIZE, OPCODE) \
1058 (a)->data_type = TYPE; \
1059 (a)->user_stride = STRIDE; \
1060 (a)->count = COUNT; \
1061 (a)->normalized = NORMALIZED; \
1063 (a)->element_size = __glXTypeSize( TYPE ) * COUNT; \
1064 (a)->true_stride = (STRIDE == 0) \
1065 ? (a)->element_size : STRIDE; \
1067 (a)->header_size = HDR_SIZE; \
1068 ((uint16_t *) (a)->header)[0] = __GLX_PAD((a)->header_size + (a)->element_size); \
1069 ((uint16_t *) (a)->header)[1] = OPCODE; \
1073 void __indirect_glVertexPointer( GLint size
, GLenum type
, GLsizei stride
,
1074 const GLvoid
* pointer
)
1076 static const uint16_t short_ops
[5] = {
1077 0, 0, X_GLrop_Vertex2sv
, X_GLrop_Vertex3sv
, X_GLrop_Vertex4sv
1079 static const uint16_t int_ops
[5] = {
1080 0, 0, X_GLrop_Vertex2iv
, X_GLrop_Vertex3iv
, X_GLrop_Vertex4iv
1082 static const uint16_t float_ops
[5] = {
1083 0, 0, X_GLrop_Vertex2fv
, X_GLrop_Vertex3fv
, X_GLrop_Vertex4fv
1085 static const uint16_t double_ops
[5] = {
1086 0, 0, X_GLrop_Vertex2dv
, X_GLrop_Vertex3dv
, X_GLrop_Vertex4dv
1089 __GLXcontext
*gc
= __glXGetCurrentContext();
1090 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1091 struct array_state_vector
* arrays
= state
->array_state
;
1092 struct array_state
* a
;
1095 if (size
< 2 || size
> 4 || stride
< 0) {
1096 __glXSetError(gc
, GL_INVALID_VALUE
);
1101 case GL_SHORT
: opcode
= short_ops
[size
]; break;
1102 case GL_INT
: opcode
= int_ops
[size
]; break;
1103 case GL_FLOAT
: opcode
= float_ops
[size
]; break;
1104 case GL_DOUBLE
: opcode
= double_ops
[size
]; break;
1106 __glXSetError(gc
, GL_INVALID_ENUM
);
1110 a
= get_array_entry( arrays
, GL_VERTEX_ARRAY
, 0 );
1111 assert( a
!= NULL
);
1112 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, size
, GL_FALSE
, 4,
1116 arrays
->array_info_cache_valid
= GL_FALSE
;
1121 void __indirect_glNormalPointer( GLenum type
, GLsizei stride
,
1122 const GLvoid
* pointer
)
1125 __GLXcontext
*gc
= __glXGetCurrentContext();
1126 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1127 struct array_state_vector
* arrays
= state
->array_state
;
1128 struct array_state
* a
;
1132 __glXSetError(gc
, GL_INVALID_VALUE
);
1137 case GL_BYTE
: opcode
= X_GLrop_Normal3bv
; break;
1138 case GL_SHORT
: opcode
= X_GLrop_Normal3sv
; break;
1139 case GL_INT
: opcode
= X_GLrop_Normal3iv
; break;
1140 case GL_FLOAT
: opcode
= X_GLrop_Normal3fv
; break;
1141 case GL_DOUBLE
: opcode
= X_GLrop_Normal3dv
; break;
1143 __glXSetError(gc
, GL_INVALID_ENUM
);
1147 a
= get_array_entry( arrays
, GL_NORMAL_ARRAY
, 0 );
1148 assert( a
!= NULL
);
1149 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, 3, GL_TRUE
, 4,
1153 arrays
->array_info_cache_valid
= GL_FALSE
;
1158 void __indirect_glColorPointer( GLint size
, GLenum type
, GLsizei stride
,
1159 const GLvoid
* pointer
)
1161 static const uint16_t byte_ops
[5] = {
1162 0, 0, 0, X_GLrop_Color3bv
, X_GLrop_Color4bv
1164 static const uint16_t ubyte_ops
[5] = {
1165 0, 0, 0, X_GLrop_Color3ubv
, X_GLrop_Color4ubv
1167 static const uint16_t short_ops
[5] = {
1168 0, 0, 0, X_GLrop_Color3sv
, X_GLrop_Color4sv
1170 static const uint16_t ushort_ops
[5] = {
1171 0, 0, 0, X_GLrop_Color3usv
, X_GLrop_Color4usv
1173 static const uint16_t int_ops
[5] = {
1174 0, 0, 0, X_GLrop_Color3iv
, X_GLrop_Color4iv
1176 static const uint16_t uint_ops
[5] = {
1177 0, 0, 0, X_GLrop_Color3uiv
, X_GLrop_Color4uiv
1179 static const uint16_t float_ops
[5] = {
1180 0, 0, 0, X_GLrop_Color3fv
, X_GLrop_Color4fv
1182 static const uint16_t double_ops
[5] = {
1183 0, 0, 0, X_GLrop_Color3dv
, X_GLrop_Color4dv
1186 __GLXcontext
*gc
= __glXGetCurrentContext();
1187 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1188 struct array_state_vector
* arrays
= state
->array_state
;
1189 struct array_state
* a
;
1192 if (size
< 3 || size
> 4 || stride
< 0) {
1193 __glXSetError(gc
, GL_INVALID_VALUE
);
1198 case GL_BYTE
: opcode
= byte_ops
[size
]; break;
1199 case GL_UNSIGNED_BYTE
: opcode
= ubyte_ops
[size
]; break;
1200 case GL_SHORT
: opcode
= short_ops
[size
]; break;
1201 case GL_UNSIGNED_SHORT
: opcode
= ushort_ops
[size
]; break;
1202 case GL_INT
: opcode
= int_ops
[size
]; break;
1203 case GL_UNSIGNED_INT
: opcode
= uint_ops
[size
]; break;
1204 case GL_FLOAT
: opcode
= float_ops
[size
]; break;
1205 case GL_DOUBLE
: opcode
= double_ops
[size
]; break;
1207 __glXSetError(gc
, GL_INVALID_ENUM
);
1211 a
= get_array_entry( arrays
, GL_COLOR_ARRAY
, 0 );
1212 assert( a
!= NULL
);
1213 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, size
, GL_TRUE
, 4,
1217 arrays
->array_info_cache_valid
= GL_FALSE
;
1222 void __indirect_glIndexPointer( GLenum type
, GLsizei stride
,
1223 const GLvoid
* pointer
)
1226 __GLXcontext
*gc
= __glXGetCurrentContext();
1227 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1228 struct array_state_vector
* arrays
= state
->array_state
;
1229 struct array_state
* a
;
1233 __glXSetError(gc
, GL_INVALID_VALUE
);
1238 case GL_UNSIGNED_BYTE
: opcode
= X_GLrop_Indexubv
; break;
1239 case GL_SHORT
: opcode
= X_GLrop_Indexsv
; break;
1240 case GL_INT
: opcode
= X_GLrop_Indexiv
; break;
1241 case GL_FLOAT
: opcode
= X_GLrop_Indexfv
; break;
1242 case GL_DOUBLE
: opcode
= X_GLrop_Indexdv
; break;
1244 __glXSetError(gc
, GL_INVALID_ENUM
);
1248 a
= get_array_entry( arrays
, GL_INDEX_ARRAY
, 0 );
1249 assert( a
!= NULL
);
1250 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, 1, GL_FALSE
, 4,
1254 arrays
->array_info_cache_valid
= GL_FALSE
;
1259 void __indirect_glEdgeFlagPointer( GLsizei stride
, const GLvoid
* pointer
)
1261 __GLXcontext
*gc
= __glXGetCurrentContext();
1262 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1263 struct array_state_vector
* arrays
= state
->array_state
;
1264 struct array_state
* a
;
1268 __glXSetError(gc
, GL_INVALID_VALUE
);
1273 a
= get_array_entry( arrays
, GL_EDGE_FLAG_ARRAY
, 0 );
1274 assert( a
!= NULL
);
1275 COMMON_ARRAY_DATA_INIT( a
, pointer
, GL_UNSIGNED_BYTE
, stride
, 1, GL_FALSE
,
1276 4, X_GLrop_EdgeFlagv
);
1279 arrays
->array_info_cache_valid
= GL_FALSE
;
1284 void __indirect_glTexCoordPointer( GLint size
, GLenum type
, GLsizei stride
,
1285 const GLvoid
* pointer
)
1287 static const uint16_t short_ops
[5] = {
1288 0, X_GLrop_TexCoord1sv
, X_GLrop_TexCoord2sv
, X_GLrop_TexCoord3sv
, X_GLrop_TexCoord4sv
1290 static const uint16_t int_ops
[5] = {
1291 0, X_GLrop_TexCoord1iv
, X_GLrop_TexCoord2iv
, X_GLrop_TexCoord3iv
, X_GLrop_TexCoord4iv
1293 static const uint16_t float_ops
[5] = {
1294 0, X_GLrop_TexCoord1dv
, X_GLrop_TexCoord2fv
, X_GLrop_TexCoord3fv
, X_GLrop_TexCoord4fv
1296 static const uint16_t double_ops
[5] = {
1297 0, X_GLrop_TexCoord1dv
, X_GLrop_TexCoord2dv
, X_GLrop_TexCoord3dv
, X_GLrop_TexCoord4dv
1300 static const uint16_t mshort_ops
[5] = {
1301 0, X_GLrop_MultiTexCoord1svARB
, X_GLrop_MultiTexCoord2svARB
, X_GLrop_MultiTexCoord3svARB
, X_GLrop_MultiTexCoord4svARB
1303 static const uint16_t mint_ops
[5] = {
1304 0, X_GLrop_MultiTexCoord1ivARB
, X_GLrop_MultiTexCoord2ivARB
, X_GLrop_MultiTexCoord3ivARB
, X_GLrop_MultiTexCoord4ivARB
1306 static const uint16_t mfloat_ops
[5] = {
1307 0, X_GLrop_MultiTexCoord1dvARB
, X_GLrop_MultiTexCoord2fvARB
, X_GLrop_MultiTexCoord3fvARB
, X_GLrop_MultiTexCoord4fvARB
1309 static const uint16_t mdouble_ops
[5] = {
1310 0, X_GLrop_MultiTexCoord1dvARB
, X_GLrop_MultiTexCoord2dvARB
, X_GLrop_MultiTexCoord3dvARB
, X_GLrop_MultiTexCoord4dvARB
1314 __GLXcontext
*gc
= __glXGetCurrentContext();
1315 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1316 struct array_state_vector
* arrays
= state
->array_state
;
1317 struct array_state
* a
;
1318 unsigned header_size
;
1322 if (size
< 1 || size
> 4 || stride
< 0) {
1323 __glXSetError(gc
, GL_INVALID_VALUE
);
1327 index
= arrays
->active_texture_unit
;
1330 case GL_SHORT
: opcode
= short_ops
[size
]; break;
1331 case GL_INT
: opcode
= int_ops
[size
]; break;
1332 case GL_FLOAT
: opcode
= float_ops
[size
]; break;
1333 case GL_DOUBLE
: opcode
= double_ops
[size
]; break;
1335 __glXSetError(gc
, GL_INVALID_ENUM
);
1343 case GL_SHORT
: opcode
= mshort_ops
[size
]; break;
1344 case GL_INT
: opcode
= mint_ops
[size
]; break;
1345 case GL_FLOAT
: opcode
= mfloat_ops
[size
]; break;
1346 case GL_DOUBLE
: opcode
= mdouble_ops
[size
]; break;
1348 __glXSetError(gc
, GL_INVALID_ENUM
);
1355 a
= get_array_entry( arrays
, GL_TEXTURE_COORD_ARRAY
, index
);
1356 assert( a
!= NULL
);
1357 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, size
, GL_FALSE
,
1358 header_size
, opcode
);
1361 arrays
->array_info_cache_valid
= GL_FALSE
;
1366 void __indirect_glSecondaryColorPointerEXT( GLint size
, GLenum type
, GLsizei stride
,
1367 const GLvoid
* pointer
)
1370 __GLXcontext
*gc
= __glXGetCurrentContext();
1371 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1372 struct array_state_vector
* arrays
= state
->array_state
;
1373 struct array_state
* a
;
1376 if (size
!= 3 || stride
< 0) {
1377 __glXSetError(gc
, GL_INVALID_VALUE
);
1382 case GL_BYTE
: opcode
= 4126; break;
1383 case GL_UNSIGNED_BYTE
: opcode
= 4131; break;
1384 case GL_SHORT
: opcode
= 4127; break;
1385 case GL_UNSIGNED_SHORT
: opcode
= 4132; break;
1386 case GL_INT
: opcode
= 4128; break;
1387 case GL_UNSIGNED_INT
: opcode
= 4133; break;
1388 case GL_FLOAT
: opcode
= 4129; break;
1389 case GL_DOUBLE
: opcode
= 4130; break;
1391 __glXSetError(gc
, GL_INVALID_ENUM
);
1395 a
= get_array_entry( arrays
, GL_SECONDARY_COLOR_ARRAY
, 0 );
1397 __glXSetError(gc
, GL_INVALID_OPERATION
);
1401 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, size
, GL_TRUE
, 4,
1405 arrays
->array_info_cache_valid
= GL_FALSE
;
1410 void __indirect_glFogCoordPointerEXT( GLenum type
, GLsizei stride
,
1411 const GLvoid
* pointer
)
1414 __GLXcontext
*gc
= __glXGetCurrentContext();
1415 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1416 struct array_state_vector
* arrays
= state
->array_state
;
1417 struct array_state
* a
;
1421 __glXSetError(gc
, GL_INVALID_VALUE
);
1426 case GL_FLOAT
: opcode
= 4124; break;
1427 case GL_DOUBLE
: opcode
= 4125; break;
1429 __glXSetError(gc
, GL_INVALID_ENUM
);
1433 a
= get_array_entry( arrays
, GL_FOG_COORD_ARRAY
, 0 );
1435 __glXSetError(gc
, GL_INVALID_OPERATION
);
1439 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, 1, GL_FALSE
, 4,
1443 arrays
->array_info_cache_valid
= GL_FALSE
;
1448 void __indirect_glVertexAttribPointerARB(GLuint index
, GLint size
,
1449 GLenum type
, GLboolean normalized
,
1451 const GLvoid
* pointer
)
1453 static const uint16_t short_ops
[5] = { 0, 4189, 4190, 4191, 4192 };
1454 static const uint16_t float_ops
[5] = { 0, 4193, 4194, 4195, 4196 };
1455 static const uint16_t double_ops
[5] = { 0, 4197, 4198, 4199, 4200 };
1458 __GLXcontext
*gc
= __glXGetCurrentContext();
1459 __GLXattribute
* state
= (__GLXattribute
*)(gc
->client_state_private
);
1460 struct array_state_vector
* arrays
= state
->array_state
;
1461 struct array_state
* a
;
1462 unsigned true_immediate_count
;
1463 unsigned true_immediate_size
;
1466 if ( (size
< 1) || (size
> 4) || (stride
< 0)
1467 || (index
> arrays
->num_vertex_program_attribs
) ){
1468 __glXSetError(gc
, GL_INVALID_VALUE
);
1472 if ( normalized
&& (type
!= GL_FLOAT
) && (type
!= GL_DOUBLE
)) {
1474 case GL_BYTE
: opcode
= X_GLrop_VertexAttrib4NbvARB
; break;
1475 case GL_UNSIGNED_BYTE
: opcode
= X_GLrop_VertexAttrib4NubvARB
; break;
1476 case GL_SHORT
: opcode
= X_GLrop_VertexAttrib4NsvARB
; break;
1477 case GL_UNSIGNED_SHORT
: opcode
= X_GLrop_VertexAttrib4NusvARB
; break;
1478 case GL_INT
: opcode
= X_GLrop_VertexAttrib4NivARB
; break;
1479 case GL_UNSIGNED_INT
: opcode
= X_GLrop_VertexAttrib4NuivARB
; break;
1481 __glXSetError(gc
, GL_INVALID_ENUM
);
1485 true_immediate_count
= 4;
1488 true_immediate_count
= size
;
1492 opcode
= X_GLrop_VertexAttrib4bvARB
;
1493 true_immediate_count
= 4;
1495 case GL_UNSIGNED_BYTE
:
1496 opcode
= X_GLrop_VertexAttrib4ubvARB
;
1497 true_immediate_count
= 4;
1500 opcode
= short_ops
[size
];
1502 case GL_UNSIGNED_SHORT
:
1503 opcode
= X_GLrop_VertexAttrib4usvARB
;
1504 true_immediate_count
= 4;
1507 opcode
= X_GLrop_VertexAttrib4ivARB
;
1508 true_immediate_count
= 4;
1510 case GL_UNSIGNED_INT
:
1511 opcode
= X_GLrop_VertexAttrib4uivARB
;
1512 true_immediate_count
= 4;
1515 opcode
= float_ops
[size
];
1518 opcode
= double_ops
[size
];
1521 __glXSetError(gc
, GL_INVALID_ENUM
);
1526 a
= get_array_entry( arrays
, GL_VERTEX_ATTRIB_ARRAY_POINTER
, index
);
1528 __glXSetError(gc
, GL_INVALID_OPERATION
);
1532 COMMON_ARRAY_DATA_INIT( a
, pointer
, type
, stride
, size
, normalized
, 8,
1535 true_immediate_size
= __glXTypeSize(type
) * true_immediate_count
;
1536 ((uint16_t *) (a
)->header
)[0] = __GLX_PAD(a
->header_size
1537 + true_immediate_size
);
1540 arrays
->array_info_cache_valid
= GL_FALSE
;
1546 * I don't have 100% confidence that this is correct. The different rules
1547 * about whether or not generic vertex attributes alias "classic" vertex
1548 * attributes (i.e., attrib1 ?= primary color) between ARB_vertex_program,
1549 * ARB_vertex_shader, and NV_vertex_program are a bit confusing. My
1550 * feeling is that the client-side doesn't have to worry about it. The
1551 * client just sends all the data to the server and lets the server deal
1554 void __indirect_glVertexAttribPointerNV( GLuint index
, GLint size
,
1555 GLenum type
, GLsizei stride
,
1556 const GLvoid
* pointer
)
1558 __GLXcontext
*gc
= __glXGetCurrentContext();
1559 GLboolean normalized
= GL_FALSE
;
1563 case GL_UNSIGNED_BYTE
:
1565 __glXSetError(gc
, GL_INVALID_VALUE
);
1568 normalized
= GL_TRUE
;
1573 __indirect_glVertexAttribPointerARB(index
, size
, type
,
1578 __glXSetError(gc
, GL_INVALID_ENUM
);
1584 void __indirect_glClientActiveTextureARB(GLenum texture
)
1586 __GLXcontext
* const gc
= __glXGetCurrentContext();
1587 __GLXattribute
* const state
= (__GLXattribute
*)(gc
->client_state_private
);
1588 struct array_state_vector
* const arrays
= state
->array_state
;
1589 const GLint unit
= (GLint
) texture
- GL_TEXTURE0
;
1592 if ( (unit
< 0) || (unit
>= arrays
->num_texture_units
) ) {
1593 __glXSetError(gc
, GL_INVALID_ENUM
);
1597 arrays
->active_texture_unit
= unit
;
1604 __glXSetArrayEnable( __GLXattribute
* state
,
1605 GLenum key
, unsigned index
, GLboolean enable
)
1607 struct array_state_vector
* arrays
= state
->array_state
;
1608 struct array_state
* a
;
1611 if ( key
== GL_TEXTURE_COORD_ARRAY
) {
1612 index
= arrays
->active_texture_unit
;
1615 a
= get_array_entry( arrays
, key
, index
);
1617 if ( (a
!= NULL
) && (a
->enabled
!= enable
) ) {
1618 a
->enabled
= enable
;
1619 arrays
->array_info_cache_valid
= GL_FALSE
;
1627 __glXArrayDisableAll( __GLXattribute
* state
)
1629 struct array_state_vector
* arrays
= state
->array_state
;
1633 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
1634 arrays
->arrays
[i
].enabled
= GL_FALSE
;
1637 arrays
->array_info_cache_valid
= GL_FALSE
;
1644 __glXGetArrayEnable( const __GLXattribute
* const state
,
1645 GLenum key
, unsigned index
, GLintptr
* dest
)
1647 const struct array_state_vector
* arrays
= state
->array_state
;
1648 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1652 *dest
= (GLintptr
) a
->enabled
;
1662 __glXGetArrayType( const __GLXattribute
* const state
,
1663 GLenum key
, unsigned index
, GLintptr
* dest
)
1665 const struct array_state_vector
* arrays
= state
->array_state
;
1666 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1670 *dest
= (GLintptr
) a
->data_type
;
1680 __glXGetArraySize( const __GLXattribute
* const state
,
1681 GLenum key
, unsigned index
, GLintptr
* dest
)
1683 const struct array_state_vector
* arrays
= state
->array_state
;
1684 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1688 *dest
= (GLintptr
) a
->count
;
1698 __glXGetArrayStride( const __GLXattribute
* const state
,
1699 GLenum key
, unsigned index
, GLintptr
* dest
)
1701 const struct array_state_vector
* arrays
= state
->array_state
;
1702 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1706 *dest
= (GLintptr
) a
->user_stride
;
1716 __glXGetArrayPointer( const __GLXattribute
* const state
,
1717 GLenum key
, unsigned index
, void ** dest
)
1719 const struct array_state_vector
* arrays
= state
->array_state
;
1720 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1725 *dest
= (void *) (a
->data
);
1735 __glXGetArrayNormalized( const __GLXattribute
* const state
,
1736 GLenum key
, unsigned index
, GLintptr
* dest
)
1738 const struct array_state_vector
* arrays
= state
->array_state
;
1739 const struct array_state
* a
= get_array_entry( (struct array_state_vector
*) arrays
,
1744 *dest
= (GLintptr
) a
->normalized
;
1754 __glXGetActiveTextureUnit( const __GLXattribute
* const state
)
1756 return state
->array_state
->active_texture_unit
;
1761 __glXPushArrayState( __GLXattribute
* state
)
1763 struct array_state_vector
* arrays
= state
->array_state
;
1764 struct array_stack_state
* stack
= & arrays
->stack
[ (arrays
->stack_index
* arrays
->num_arrays
)];
1767 /* XXX are we pushing _all_ the necessary fields? */
1768 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
1769 stack
[i
].data
= arrays
->arrays
[i
].data
;
1770 stack
[i
].data_type
= arrays
->arrays
[i
].data_type
;
1771 stack
[i
].user_stride
= arrays
->arrays
[i
].user_stride
;
1772 stack
[i
].count
= arrays
->arrays
[i
].count
;
1773 stack
[i
].key
= arrays
->arrays
[i
].key
;
1774 stack
[i
].index
= arrays
->arrays
[i
].index
;
1775 stack
[i
].enabled
= arrays
->arrays
[i
].enabled
;
1778 arrays
->active_texture_unit_stack
[ arrays
->stack_index
] =
1779 arrays
->active_texture_unit
;
1781 arrays
->stack_index
++;
1786 __glXPopArrayState( __GLXattribute
* state
)
1788 struct array_state_vector
* arrays
= state
->array_state
;
1789 struct array_stack_state
* stack
;
1793 arrays
->stack_index
--;
1794 stack
= & arrays
->stack
[ (arrays
->stack_index
* arrays
->num_arrays
) ];
1796 for ( i
= 0 ; i
< arrays
->num_arrays
; i
++ ) {
1797 switch ( stack
[i
].key
) {
1798 case GL_NORMAL_ARRAY
:
1799 __indirect_glNormalPointer( stack
[i
].data_type
,
1800 stack
[i
].user_stride
,
1803 case GL_COLOR_ARRAY
:
1804 __indirect_glColorPointer( stack
[i
].count
,
1806 stack
[i
].user_stride
,
1809 case GL_INDEX_ARRAY
:
1810 __indirect_glIndexPointer( stack
[i
].data_type
,
1811 stack
[i
].user_stride
,
1814 case GL_EDGE_FLAG_ARRAY
:
1815 __indirect_glEdgeFlagPointer( stack
[i
].user_stride
,
1818 case GL_TEXTURE_COORD_ARRAY
:
1819 arrays
->active_texture_unit
= stack
[i
].index
;
1820 __indirect_glTexCoordPointer( stack
[i
].count
,
1822 stack
[i
].user_stride
,
1825 case GL_SECONDARY_COLOR_ARRAY
:
1826 __indirect_glSecondaryColorPointerEXT( stack
[i
].count
,
1828 stack
[i
].user_stride
,
1831 case GL_FOG_COORDINATE_ARRAY
:
1832 __indirect_glFogCoordPointerEXT( stack
[i
].data_type
,
1833 stack
[i
].user_stride
,
1839 __glXSetArrayEnable( state
, stack
[i
].key
, stack
[i
].index
,
1843 arrays
->active_texture_unit
=
1844 arrays
->active_texture_unit_stack
[ arrays
->stack_index
];