1
2 /**************************************************************************
3 *
4 * Copyright 2007 VMware, Inc.
5 * Copyright 2012 Marek Olšák <maraeo@gmail.com>
6 * All Rights Reserved.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
11 * without limitation the rights to use, copy, modify, merge, publish,
12 * distribute, sub license, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
15 *
16 * The above copyright notice and this permission notice (including the
17 * next paragraph) shall be included in all copies or substantial portions
18 * of the Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
23 * IN NO EVENT SHALL AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
24 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 *
28 **************************************************************************/
29
30 /*
31 * This converts the VBO's vertex attribute/array information into
32 * Gallium vertex state and binds it.
33 *
34 * Authors:
35 * Keith Whitwell <keithw@vmware.com>
36 * Marek Olšák <maraeo@gmail.com>
37 */
38
39 #include "st_context.h"
40 #include "st_atom.h"
41 #include "st_cb_bufferobjects.h"
42 #include "st_draw.h"
43 #include "st_program.h"
44
45 #include "cso_cache/cso_context.h"
46 #include "util/u_math.h"
47 #include "main/bufferobj.h"
48 #include "main/glformats.h"
49
50
51 static GLuint double_types[4] = {
52 PIPE_FORMAT_R64_FLOAT,
53 PIPE_FORMAT_R64G64_FLOAT,
54 PIPE_FORMAT_R64G64B64_FLOAT,
55 PIPE_FORMAT_R64G64B64A64_FLOAT
56 };
57
58 static GLuint float_types[4] = {
59 PIPE_FORMAT_R32_FLOAT,
60 PIPE_FORMAT_R32G32_FLOAT,
61 PIPE_FORMAT_R32G32B32_FLOAT,
62 PIPE_FORMAT_R32G32B32A32_FLOAT
63 };
64
65 static GLuint half_float_types[4] = {
66 PIPE_FORMAT_R16_FLOAT,
67 PIPE_FORMAT_R16G16_FLOAT,
68 PIPE_FORMAT_R16G16B16_FLOAT,
69 PIPE_FORMAT_R16G16B16A16_FLOAT
70 };
71
72 static GLuint uint_types_norm[4] = {
73 PIPE_FORMAT_R32_UNORM,
74 PIPE_FORMAT_R32G32_UNORM,
75 PIPE_FORMAT_R32G32B32_UNORM,
76 PIPE_FORMAT_R32G32B32A32_UNORM
77 };
78
79 static GLuint uint_types_scale[4] = {
80 PIPE_FORMAT_R32_USCALED,
81 PIPE_FORMAT_R32G32_USCALED,
82 PIPE_FORMAT_R32G32B32_USCALED,
83 PIPE_FORMAT_R32G32B32A32_USCALED
84 };
85
86 static GLuint uint_types_int[4] = {
87 PIPE_FORMAT_R32_UINT,
88 PIPE_FORMAT_R32G32_UINT,
89 PIPE_FORMAT_R32G32B32_UINT,
90 PIPE_FORMAT_R32G32B32A32_UINT
91 };
92
93 static GLuint int_types_norm[4] = {
94 PIPE_FORMAT_R32_SNORM,
95 PIPE_FORMAT_R32G32_SNORM,
96 PIPE_FORMAT_R32G32B32_SNORM,
97 PIPE_FORMAT_R32G32B32A32_SNORM
98 };
99
100 static GLuint int_types_scale[4] = {
101 PIPE_FORMAT_R32_SSCALED,
102 PIPE_FORMAT_R32G32_SSCALED,
103 PIPE_FORMAT_R32G32B32_SSCALED,
104 PIPE_FORMAT_R32G32B32A32_SSCALED
105 };
106
107 static GLuint int_types_int[4] = {
108 PIPE_FORMAT_R32_SINT,
109 PIPE_FORMAT_R32G32_SINT,
110 PIPE_FORMAT_R32G32B32_SINT,
111 PIPE_FORMAT_R32G32B32A32_SINT
112 };
113
114 static GLuint ushort_types_norm[4] = {
115 PIPE_FORMAT_R16_UNORM,
116 PIPE_FORMAT_R16G16_UNORM,
117 PIPE_FORMAT_R16G16B16_UNORM,
118 PIPE_FORMAT_R16G16B16A16_UNORM
119 };
120
121 static GLuint ushort_types_scale[4] = {
122 PIPE_FORMAT_R16_USCALED,
123 PIPE_FORMAT_R16G16_USCALED,
124 PIPE_FORMAT_R16G16B16_USCALED,
125 PIPE_FORMAT_R16G16B16A16_USCALED
126 };
127
128 static GLuint ushort_types_int[4] = {
129 PIPE_FORMAT_R16_UINT,
130 PIPE_FORMAT_R16G16_UINT,
131 PIPE_FORMAT_R16G16B16_UINT,
132 PIPE_FORMAT_R16G16B16A16_UINT
133 };
134
135 static GLuint short_types_norm[4] = {
136 PIPE_FORMAT_R16_SNORM,
137 PIPE_FORMAT_R16G16_SNORM,
138 PIPE_FORMAT_R16G16B16_SNORM,
139 PIPE_FORMAT_R16G16B16A16_SNORM
140 };
141
142 static GLuint short_types_scale[4] = {
143 PIPE_FORMAT_R16_SSCALED,
144 PIPE_FORMAT_R16G16_SSCALED,
145 PIPE_FORMAT_R16G16B16_SSCALED,
146 PIPE_FORMAT_R16G16B16A16_SSCALED
147 };
148
149 static GLuint short_types_int[4] = {
150 PIPE_FORMAT_R16_SINT,
151 PIPE_FORMAT_R16G16_SINT,
152 PIPE_FORMAT_R16G16B16_SINT,
153 PIPE_FORMAT_R16G16B16A16_SINT
154 };
155
156 static GLuint ubyte_types_norm[4] = {
157 PIPE_FORMAT_R8_UNORM,
158 PIPE_FORMAT_R8G8_UNORM,
159 PIPE_FORMAT_R8G8B8_UNORM,
160 PIPE_FORMAT_R8G8B8A8_UNORM
161 };
162
163 static GLuint ubyte_types_scale[4] = {
164 PIPE_FORMAT_R8_USCALED,
165 PIPE_FORMAT_R8G8_USCALED,
166 PIPE_FORMAT_R8G8B8_USCALED,
167 PIPE_FORMAT_R8G8B8A8_USCALED
168 };
169
170 static GLuint ubyte_types_int[4] = {
171 PIPE_FORMAT_R8_UINT,
172 PIPE_FORMAT_R8G8_UINT,
173 PIPE_FORMAT_R8G8B8_UINT,
174 PIPE_FORMAT_R8G8B8A8_UINT
175 };
176
177 static GLuint byte_types_norm[4] = {
178 PIPE_FORMAT_R8_SNORM,
179 PIPE_FORMAT_R8G8_SNORM,
180 PIPE_FORMAT_R8G8B8_SNORM,
181 PIPE_FORMAT_R8G8B8A8_SNORM
182 };
183
184 static GLuint byte_types_scale[4] = {
185 PIPE_FORMAT_R8_SSCALED,
186 PIPE_FORMAT_R8G8_SSCALED,
187 PIPE_FORMAT_R8G8B8_SSCALED,
188 PIPE_FORMAT_R8G8B8A8_SSCALED
189 };
190
191 static GLuint byte_types_int[4] = {
192 PIPE_FORMAT_R8_SINT,
193 PIPE_FORMAT_R8G8_SINT,
194 PIPE_FORMAT_R8G8B8_SINT,
195 PIPE_FORMAT_R8G8B8A8_SINT
196 };
197
198 static GLuint fixed_types[4] = {
199 PIPE_FORMAT_R32_FIXED,
200 PIPE_FORMAT_R32G32_FIXED,
201 PIPE_FORMAT_R32G32B32_FIXED,
202 PIPE_FORMAT_R32G32B32A32_FIXED
203 };
204
205
206 /**
207 * Return a PIPE_FORMAT_x for the given GL datatype and size.
208 */
209 enum pipe_format
st_pipe_vertex_format(GLenum type,GLuint size,GLenum format,GLboolean normalized,GLboolean integer)210 st_pipe_vertex_format(GLenum type, GLuint size, GLenum format,
211 GLboolean normalized, GLboolean integer)
212 {
213 assert((type >= GL_BYTE && type <= GL_DOUBLE) ||
214 type == GL_FIXED || type == GL_HALF_FLOAT ||
215 type == GL_HALF_FLOAT_OES ||
216 type == GL_INT_2_10_10_10_REV ||
217 type == GL_UNSIGNED_INT_2_10_10_10_REV ||
218 type == GL_UNSIGNED_INT_10F_11F_11F_REV);
219 assert(size >= 1);
220 assert(size <= 4);
221 assert(format == GL_RGBA || format == GL_BGRA);
222
223 if (type == GL_INT_2_10_10_10_REV ||
224 type == GL_UNSIGNED_INT_2_10_10_10_REV) {
225 assert(size == 4);
226 assert(!integer);
227
228 if (format == GL_BGRA) {
229 if (type == GL_INT_2_10_10_10_REV) {
230 if (normalized)
231 return PIPE_FORMAT_B10G10R10A2_SNORM;
232 else
233 return PIPE_FORMAT_B10G10R10A2_SSCALED;
234 } else {
235 if (normalized)
236 return PIPE_FORMAT_B10G10R10A2_UNORM;
237 else
238 return PIPE_FORMAT_B10G10R10A2_USCALED;
239 }
240 } else {
241 if (type == GL_INT_2_10_10_10_REV) {
242 if (normalized)
243 return PIPE_FORMAT_R10G10B10A2_SNORM;
244 else
245 return PIPE_FORMAT_R10G10B10A2_SSCALED;
246 } else {
247 if (normalized)
248 return PIPE_FORMAT_R10G10B10A2_UNORM;
249 else
250 return PIPE_FORMAT_R10G10B10A2_USCALED;
251 }
252 }
253 }
254
255 if (type == GL_UNSIGNED_INT_10F_11F_11F_REV) {
256 assert(size == 3);
257 assert(!integer);
258 assert(format == GL_RGBA);
259
260 return PIPE_FORMAT_R11G11B10_FLOAT;
261 }
262
263 if (format == GL_BGRA) {
264 /* this is an odd-ball case */
265 assert(type == GL_UNSIGNED_BYTE);
266 assert(normalized);
267 return PIPE_FORMAT_B8G8R8A8_UNORM;
268 }
269
270 if (integer) {
271 switch (type) {
272 case GL_INT: return int_types_int[size-1];
273 case GL_SHORT: return short_types_int[size-1];
274 case GL_BYTE: return byte_types_int[size-1];
275 case GL_UNSIGNED_INT: return uint_types_int[size-1];
276 case GL_UNSIGNED_SHORT: return ushort_types_int[size-1];
277 case GL_UNSIGNED_BYTE: return ubyte_types_int[size-1];
278 default: assert(0); return 0;
279 }
280 }
281 else if (normalized) {
282 switch (type) {
283 case GL_DOUBLE: return double_types[size-1];
284 case GL_FLOAT: return float_types[size-1];
285 case GL_HALF_FLOAT:
286 case GL_HALF_FLOAT_OES: return half_float_types[size-1];
287 case GL_INT: return int_types_norm[size-1];
288 case GL_SHORT: return short_types_norm[size-1];
289 case GL_BYTE: return byte_types_norm[size-1];
290 case GL_UNSIGNED_INT: return uint_types_norm[size-1];
291 case GL_UNSIGNED_SHORT: return ushort_types_norm[size-1];
292 case GL_UNSIGNED_BYTE: return ubyte_types_norm[size-1];
293 case GL_FIXED: return fixed_types[size-1];
294 default: assert(0); return 0;
295 }
296 }
297 else {
298 switch (type) {
299 case GL_DOUBLE: return double_types[size-1];
300 case GL_FLOAT: return float_types[size-1];
301 case GL_HALF_FLOAT:
302 case GL_HALF_FLOAT_OES: return half_float_types[size-1];
303 case GL_INT: return int_types_scale[size-1];
304 case GL_SHORT: return short_types_scale[size-1];
305 case GL_BYTE: return byte_types_scale[size-1];
306 case GL_UNSIGNED_INT: return uint_types_scale[size-1];
307 case GL_UNSIGNED_SHORT: return ushort_types_scale[size-1];
308 case GL_UNSIGNED_BYTE: return ubyte_types_scale[size-1];
309 case GL_FIXED: return fixed_types[size-1];
310 default: assert(0); return 0;
311 }
312 }
313 return PIPE_FORMAT_NONE; /* silence compiler warning */
314 }
315
316 static const struct gl_vertex_array *
get_client_array(const struct st_vertex_program * vp,const struct gl_vertex_array ** arrays,int attr)317 get_client_array(const struct st_vertex_program *vp,
318 const struct gl_vertex_array **arrays,
319 int attr)
320 {
321 const GLuint mesaAttr = vp->index_to_input[attr];
322 /* st_program uses 0xffffffff to denote a double placeholder attribute */
323 if (mesaAttr == ST_DOUBLE_ATTRIB_PLACEHOLDER)
324 return NULL;
325 return arrays[mesaAttr];
326 }
327
328 /**
329 * Examine the active arrays to determine if we have interleaved
330 * vertex arrays all living in one VBO, or all living in user space.
331 */
332 static GLboolean
is_interleaved_arrays(const struct st_vertex_program * vp,const struct st_vp_variant * vpv,const struct gl_vertex_array ** arrays)333 is_interleaved_arrays(const struct st_vertex_program *vp,
334 const struct st_vp_variant *vpv,
335 const struct gl_vertex_array **arrays)
336 {
337 GLuint attr;
338 const struct gl_buffer_object *firstBufObj = NULL;
339 GLint firstStride = -1;
340 const GLubyte *firstPtr = NULL;
341 GLboolean userSpaceBuffer = GL_FALSE;
342
343 for (attr = 0; attr < vpv->num_inputs; attr++) {
344 const struct gl_vertex_array *array;
345 const struct gl_buffer_object *bufObj;
346 GLsizei stride;
347
348 array = get_client_array(vp, arrays, attr);
349 if (!array)
350 continue;
351
352 stride = array->StrideB; /* in bytes */
353 bufObj = array->BufferObj;
354 if (attr == 0) {
355 /* save info about the first array */
356 firstStride = stride;
357 firstPtr = array->Ptr;
358 firstBufObj = bufObj;
359 userSpaceBuffer = !bufObj || !bufObj->Name;
360 }
361 else {
362 /* check if other arrays interleave with the first, in same buffer */
363 if (stride != firstStride)
364 return GL_FALSE; /* strides don't match */
365
366 if (bufObj != firstBufObj)
367 return GL_FALSE; /* arrays in different VBOs */
368
369 if (llabs(array->Ptr - firstPtr) > firstStride)
370 return GL_FALSE; /* arrays start too far apart */
371
372 if ((!_mesa_is_bufferobj(bufObj)) != userSpaceBuffer)
373 return GL_FALSE; /* mix of VBO and user-space arrays */
374 }
375 }
376
377 return GL_TRUE;
378 }
379
init_velement(struct pipe_vertex_element * velement,int src_offset,int format,int instance_divisor,int vbo_index)380 static void init_velement(struct pipe_vertex_element *velement,
381 int src_offset, int format,
382 int instance_divisor, int vbo_index)
383 {
384 velement->src_offset = src_offset;
385 velement->src_format = format;
386 velement->instance_divisor = instance_divisor;
387 velement->vertex_buffer_index = vbo_index;
388 assert(velement->src_format);
389 }
390
init_velement_lowered(struct st_context * st,const struct st_vertex_program * vp,struct pipe_vertex_element * velements,int src_offset,int format,int instance_divisor,int vbo_index,int nr_components,GLboolean doubles,GLuint * attr_idx)391 static void init_velement_lowered(struct st_context *st,
392 const struct st_vertex_program *vp,
393 struct pipe_vertex_element *velements,
394 int src_offset, int format,
395 int instance_divisor, int vbo_index,
396 int nr_components, GLboolean doubles,
397 GLuint *attr_idx)
398 {
399 int idx = *attr_idx;
400 if (doubles) {
401 int lower_format;
402
403 if (nr_components < 2)
404 lower_format = PIPE_FORMAT_R32G32_UINT;
405 else
406 lower_format = PIPE_FORMAT_R32G32B32A32_UINT;
407
408 init_velement(&velements[idx], src_offset,
409 lower_format, instance_divisor, vbo_index);
410 idx++;
411
412 if (idx < vp->num_inputs &&
413 vp->index_to_input[idx] == ST_DOUBLE_ATTRIB_PLACEHOLDER) {
414 if (nr_components >= 3) {
415 if (nr_components == 3)
416 lower_format = PIPE_FORMAT_R32G32_UINT;
417 else
418 lower_format = PIPE_FORMAT_R32G32B32A32_UINT;
419
420 init_velement(&velements[idx], src_offset + 4 * sizeof(float),
421 lower_format, instance_divisor, vbo_index);
422 } else {
423 /* The values here are undefined. Fill in some conservative
424 * dummy values.
425 */
426 init_velement(&velements[idx], src_offset, PIPE_FORMAT_R32G32_UINT,
427 instance_divisor, vbo_index);
428 }
429
430 idx++;
431 }
432 } else {
433 init_velement(&velements[idx], src_offset,
434 format, instance_divisor, vbo_index);
435 idx++;
436 }
437 *attr_idx = idx;
438 }
439
440 /**
441 * Set up for drawing interleaved arrays that all live in one VBO
442 * or all live in user space.
443 * \param vbuffer returns vertex buffer info
444 * \param velements returns vertex element info
445 */
446 static boolean
setup_interleaved_attribs(struct st_context * st,const struct st_vertex_program * vp,const struct st_vp_variant * vpv,const struct gl_vertex_array ** arrays,struct pipe_vertex_buffer * vbuffer,struct pipe_vertex_element velements[])447 setup_interleaved_attribs(struct st_context *st,
448 const struct st_vertex_program *vp,
449 const struct st_vp_variant *vpv,
450 const struct gl_vertex_array **arrays,
451 struct pipe_vertex_buffer *vbuffer,
452 struct pipe_vertex_element velements[])
453 {
454 GLuint attr;
455 const GLubyte *low_addr = NULL;
456 GLboolean usingVBO; /* all arrays in a VBO? */
457 struct gl_buffer_object *bufobj;
458 GLsizei stride;
459
460 /* Find the lowest address of the arrays we're drawing,
461 * Init bufobj and stride.
462 */
463 if (vpv->num_inputs) {
464 const struct gl_vertex_array *array;
465
466 array = get_client_array(vp, arrays, 0);
467 assert(array);
468
469 /* Since we're doing interleaved arrays, we know there'll be at most
470 * one buffer object and the stride will be the same for all arrays.
471 * Grab them now.
472 */
473 bufobj = array->BufferObj;
474 stride = array->StrideB;
475
476 low_addr = arrays[vp->index_to_input[0]]->Ptr;
477
478 for (attr = 1; attr < vpv->num_inputs; attr++) {
479 const GLubyte *start;
480 array = get_client_array(vp, arrays, attr);
481 if (!array)
482 continue;
483 start = array->Ptr;
484 low_addr = MIN2(low_addr, start);
485 }
486 }
487 else {
488 /* not sure we'll ever have zero inputs, but play it safe */
489 bufobj = NULL;
490 stride = 0;
491 low_addr = 0;
492 }
493
494 /* are the arrays in user space? */
495 usingVBO = _mesa_is_bufferobj(bufobj);
496
497 for (attr = 0; attr < vpv->num_inputs;) {
498 const struct gl_vertex_array *array;
499 unsigned src_offset;
500 unsigned src_format;
501
502 array = get_client_array(vp, arrays, attr);
503 assert(array);
504
505 src_offset = (unsigned) (array->Ptr - low_addr);
506 assert(array->_ElementSize ==
507 _mesa_bytes_per_vertex_attrib(array->Size, array->Type));
508
509 src_format = st_pipe_vertex_format(array->Type,
510 array->Size,
511 array->Format,
512 array->Normalized,
513 array->Integer);
514
515 init_velement_lowered(st, vp, velements, src_offset, src_format,
516 array->InstanceDivisor, 0,
517 array->Size, array->Doubles, &attr);
518 }
519
520 /*
521 * Return the vbuffer info and setup user-space attrib info, if needed.
522 */
523 if (vpv->num_inputs == 0) {
524 /* just defensive coding here */
525 vbuffer->buffer = NULL;
526 vbuffer->user_buffer = NULL;
527 vbuffer->buffer_offset = 0;
528 vbuffer->stride = 0;
529 }
530 else if (usingVBO) {
531 /* all interleaved arrays in a VBO */
532 struct st_buffer_object *stobj = st_buffer_object(bufobj);
533
534 if (!stobj || !stobj->buffer) {
535 return FALSE; /* out-of-memory error probably */
536 }
537
538 vbuffer->buffer = stobj->buffer;
539 vbuffer->user_buffer = NULL;
540 vbuffer->buffer_offset = pointer_to_offset(low_addr);
541 vbuffer->stride = stride;
542 }
543 else {
544 /* all interleaved arrays in user memory */
545 vbuffer->buffer = NULL;
546 vbuffer->user_buffer = low_addr;
547 vbuffer->buffer_offset = 0;
548 vbuffer->stride = stride;
549 }
550 return TRUE;
551 }
552
553 /**
554 * Set up a separate pipe_vertex_buffer and pipe_vertex_element for each
555 * vertex attribute.
556 * \param vbuffer returns vertex buffer info
557 * \param velements returns vertex element info
558 */
559 static boolean
setup_non_interleaved_attribs(struct st_context * st,const struct st_vertex_program * vp,const struct st_vp_variant * vpv,const struct gl_vertex_array ** arrays,struct pipe_vertex_buffer vbuffer[],struct pipe_vertex_element velements[],unsigned * num_vbuffers)560 setup_non_interleaved_attribs(struct st_context *st,
561 const struct st_vertex_program *vp,
562 const struct st_vp_variant *vpv,
563 const struct gl_vertex_array **arrays,
564 struct pipe_vertex_buffer vbuffer[],
565 struct pipe_vertex_element velements[],
566 unsigned *num_vbuffers)
567 {
568 struct gl_context *ctx = st->ctx;
569 GLuint attr;
570
571 *num_vbuffers = 0;
572
573 for (attr = 0; attr < vpv->num_inputs;) {
574 const GLuint mesaAttr = vp->index_to_input[attr];
575 const struct gl_vertex_array *array;
576 struct gl_buffer_object *bufobj;
577 GLsizei stride;
578 unsigned src_format;
579 unsigned bufidx;
580
581 array = get_client_array(vp, arrays, attr);
582 assert(array);
583
584 bufidx = (*num_vbuffers)++;
585
586 stride = array->StrideB;
587 bufobj = array->BufferObj;
588 assert(array->_ElementSize ==
589 _mesa_bytes_per_vertex_attrib(array->Size, array->Type));
590
591 if (_mesa_is_bufferobj(bufobj)) {
592 /* Attribute data is in a VBO.
593 * Recall that for VBOs, the gl_vertex_array->Ptr field is
594 * really an offset from the start of the VBO, not a pointer.
595 */
596 struct st_buffer_object *stobj = st_buffer_object(bufobj);
597
598 if (!stobj || !stobj->buffer) {
599 return FALSE; /* out-of-memory error probably */
600 }
601
602 vbuffer[bufidx].buffer = stobj->buffer;
603 vbuffer[bufidx].user_buffer = NULL;
604 vbuffer[bufidx].buffer_offset = pointer_to_offset(array->Ptr);
605 }
606 else {
607 /* wrap user data */
608 void *ptr;
609
610 if (array->Ptr) {
611 ptr = (void *) array->Ptr;
612 }
613 else {
614 /* no array, use ctx->Current.Attrib[] value */
615 ptr = (void *) ctx->Current.Attrib[mesaAttr];
616 stride = 0;
617 }
618
619 assert(ptr);
620
621 vbuffer[bufidx].buffer = NULL;
622 vbuffer[bufidx].user_buffer = ptr;
623 vbuffer[bufidx].buffer_offset = 0;
624 }
625
626 /* common-case setup */
627 vbuffer[bufidx].stride = stride; /* in bytes */
628
629 src_format = st_pipe_vertex_format(array->Type,
630 array->Size,
631 array->Format,
632 array->Normalized,
633 array->Integer);
634
635 init_velement_lowered(st, vp, velements, 0, src_format,
636 array->InstanceDivisor, bufidx,
637 array->Size, array->Doubles, &attr);
638 }
639
640 return TRUE;
641 }
642
update_array(struct st_context * st)643 static void update_array(struct st_context *st)
644 {
645 struct gl_context *ctx = st->ctx;
646 const struct gl_vertex_array **arrays = ctx->Array._DrawArrays;
647 const struct st_vertex_program *vp;
648 const struct st_vp_variant *vpv;
649 struct pipe_vertex_buffer vbuffer[PIPE_MAX_SHADER_INPUTS];
650 struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];
651 unsigned num_vbuffers;
652
653 st->vertex_array_out_of_memory = FALSE;
654
655 /* No drawing has been done yet, so do nothing. */
656 if (!arrays)
657 return;
658
659 /* vertex program validation must be done before this */
660 vp = st->vp;
661 vpv = st->vp_variant;
662
663 memset(velements, 0, sizeof(struct pipe_vertex_element) * vpv->num_inputs);
664
665 /*
666 * Setup the vbuffer[] and velements[] arrays.
667 */
668 if (is_interleaved_arrays(vp, vpv, arrays)) {
669 if (!setup_interleaved_attribs(st, vp, vpv, arrays, vbuffer, velements)) {
670 st->vertex_array_out_of_memory = TRUE;
671 return;
672 }
673
674 num_vbuffers = 1;
675 if (vpv->num_inputs == 0)
676 num_vbuffers = 0;
677 }
678 else {
679 if (!setup_non_interleaved_attribs(st, vp, vpv, arrays, vbuffer,
680 velements, &num_vbuffers)) {
681 st->vertex_array_out_of_memory = TRUE;
682 return;
683 }
684 }
685
686 cso_set_vertex_buffers(st->cso_context, 0, num_vbuffers, vbuffer);
687 if (st->last_num_vbuffers > num_vbuffers) {
688 /* Unbind remaining buffers, if any. */
689 cso_set_vertex_buffers(st->cso_context, num_vbuffers,
690 st->last_num_vbuffers - num_vbuffers, NULL);
691 }
692 st->last_num_vbuffers = num_vbuffers;
693 cso_set_vertex_elements(st->cso_context, vpv->num_inputs, velements);
694 }
695
696
697 const struct st_tracked_state st_update_array = {
698 update_array /* update */
699 };
700