1 /**************************************************************************
3 * Copyright 2011 Marek Olšák <maraeo@gmail.com>
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "util/u_vbuf_mgr.h"
30 #include "util/u_format.h"
31 #include "util/u_inlines.h"
32 #include "util/u_memory.h"
33 #include "util/u_upload_mgr.h"
34 #include "translate/translate.h"
35 #include "translate/translate_cache.h"
37 /* Hardware vertex fetcher limitations can be described by this structure. */
39 /* Vertex format CAPs. */
40 /* TRUE if hardware supports it. */
41 unsigned format_fixed32:1; /* PIPE_FORMAT_*32*_FIXED */
42 unsigned format_float16:1; /* PIPE_FORMAT_*16*_FLOAT */
43 unsigned format_float64:1; /* PIPE_FORMAT_*64*_FLOAT */
44 unsigned format_norm32:1; /* PIPE_FORMAT_*32*NORM */
45 unsigned format_scaled32:1; /* PIPE_FORMAT_*32*SCALED */
47 /* Whether vertex fetches don't have to be dword-aligned. */
48 /* TRUE if hardware supports it. */
49 unsigned fetch_dword_unaligned:1;
52 struct u_vbuf_elements {
54 struct pipe_vertex_element ve[PIPE_MAX_ATTRIBS];
56 unsigned src_format_size[PIPE_MAX_ATTRIBS];
58 /* If (velem[i].src_format != native_format[i]), the vertex buffer
59 * referenced by the vertex element cannot be used for rendering and
60 * its vertex data must be translated to native_format[i]. */
61 enum pipe_format native_format[PIPE_MAX_ATTRIBS];
62 unsigned native_format_size[PIPE_MAX_ATTRIBS];
64 /* This might mean two things:
65 * - src_format != native_format, as discussed above.
66 * - src_offset % 4 != 0 (if the caps don't allow such an offset). */
67 boolean incompatible_layout;
72 struct u_vbuf_caps caps;
73 struct pipe_context *pipe;
75 struct translate_cache *translate_cache;
76 unsigned translate_vb_slot;
78 struct u_vbuf_elements *ve;
79 void *saved_ve, *fallback_ve;
80 boolean ve_binding_lock;
83 boolean incompatible_vb_layout;
86 static void u_vbuf_init_format_caps(struct u_vbuf_priv *mgr)
88 struct pipe_screen *screen = mgr->pipe->screen;
90 mgr->caps.format_fixed32 =
91 screen->is_format_supported(screen, PIPE_FORMAT_R32_FIXED, PIPE_BUFFER,
92 0, PIPE_BIND_VERTEX_BUFFER);
94 mgr->caps.format_float16 =
95 screen->is_format_supported(screen, PIPE_FORMAT_R16_FLOAT, PIPE_BUFFER,
96 0, PIPE_BIND_VERTEX_BUFFER);
98 mgr->caps.format_float64 =
99 screen->is_format_supported(screen, PIPE_FORMAT_R64_FLOAT, PIPE_BUFFER,
100 0, PIPE_BIND_VERTEX_BUFFER);
102 mgr->caps.format_norm32 =
103 screen->is_format_supported(screen, PIPE_FORMAT_R32_UNORM, PIPE_BUFFER,
104 0, PIPE_BIND_VERTEX_BUFFER) &&
105 screen->is_format_supported(screen, PIPE_FORMAT_R32_SNORM, PIPE_BUFFER,
106 0, PIPE_BIND_VERTEX_BUFFER);
108 mgr->caps.format_scaled32 =
109 screen->is_format_supported(screen, PIPE_FORMAT_R32_USCALED, PIPE_BUFFER,
110 0, PIPE_BIND_VERTEX_BUFFER) &&
111 screen->is_format_supported(screen, PIPE_FORMAT_R32_SSCALED, PIPE_BUFFER,
112 0, PIPE_BIND_VERTEX_BUFFER);
116 u_vbuf_create(struct pipe_context *pipe,
117 unsigned upload_buffer_size,
118 unsigned upload_buffer_alignment,
119 unsigned upload_buffer_bind,
120 enum u_fetch_alignment fetch_alignment)
122 struct u_vbuf_priv *mgr = CALLOC_STRUCT(u_vbuf_priv);
125 mgr->translate_cache = translate_cache_create();
127 mgr->b.uploader = u_upload_create(pipe, upload_buffer_size,
128 upload_buffer_alignment,
131 mgr->caps.fetch_dword_unaligned =
132 fetch_alignment == U_VERTEX_FETCH_BYTE_ALIGNED;
134 u_vbuf_init_format_caps(mgr);
139 void u_vbuf_destroy(struct u_vbuf_mgr *mgrb)
141 struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb;
144 for (i = 0; i < mgr->b.nr_vertex_buffers; i++) {
145 pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, NULL);
147 for (i = 0; i < mgr->b.nr_real_vertex_buffers; i++) {
148 pipe_resource_reference(&mgr->b.real_vertex_buffer[i].buffer, NULL);
151 translate_cache_destroy(mgr->translate_cache);
152 u_upload_destroy(mgr->b.uploader);
158 u_vbuf_translate_begin(struct u_vbuf_priv *mgr,
159 int min_index, int max_index)
161 struct translate_key key;
162 struct translate_element *te;
163 unsigned tr_elem_index[PIPE_MAX_ATTRIBS];
164 struct translate *tr;
165 boolean vb_translated[PIPE_MAX_ATTRIBS] = {0};
166 uint8_t *vb_map[PIPE_MAX_ATTRIBS] = {0}, *out_map;
167 struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS] = {0};
168 struct pipe_resource *out_buffer = NULL;
169 unsigned i, num_verts, out_offset;
170 struct pipe_vertex_element new_velems[PIPE_MAX_ATTRIBS];
171 boolean upload_flushed = FALSE;
173 memset(&key, 0, sizeof(key));
174 memset(tr_elem_index, 0xff, sizeof(tr_elem_index));
176 /* Initialize the translate key, i.e. the recipe how vertices should be
178 memset(&key, 0, sizeof key);
179 for (i = 0; i < mgr->ve->count; i++) {
180 struct pipe_vertex_buffer *vb =
181 &mgr->b.vertex_buffer[mgr->ve->ve[i].vertex_buffer_index];
182 enum pipe_format output_format = mgr->ve->native_format[i];
183 unsigned output_format_size = mgr->ve->native_format_size[i];
185 /* Check for support. */
186 if (mgr->ve->ve[i].src_format == mgr->ve->native_format[i] &&
187 (mgr->caps.fetch_dword_unaligned ||
188 (vb->buffer_offset % 4 == 0 &&
189 vb->stride % 4 == 0 &&
190 mgr->ve->ve[i].src_offset % 4 == 0))) {
194 /* Workaround for translate: output floats instead of halfs. */
195 switch (output_format) {
196 case PIPE_FORMAT_R16_FLOAT:
197 output_format = PIPE_FORMAT_R32_FLOAT;
198 output_format_size = 4;
200 case PIPE_FORMAT_R16G16_FLOAT:
201 output_format = PIPE_FORMAT_R32G32_FLOAT;
202 output_format_size = 8;
204 case PIPE_FORMAT_R16G16B16_FLOAT:
205 output_format = PIPE_FORMAT_R32G32B32_FLOAT;
206 output_format_size = 12;
208 case PIPE_FORMAT_R16G16B16A16_FLOAT:
209 output_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
210 output_format_size = 16;
215 /* Add this vertex element. */
216 te = &key.element[key.nr_elements];
218 te->instance_divisor;*/
219 te->input_buffer = mgr->ve->ve[i].vertex_buffer_index;
220 te->input_format = mgr->ve->ve[i].src_format;
221 te->input_offset = mgr->ve->ve[i].src_offset;
222 te->output_format = output_format;
223 te->output_offset = key.output_stride;
225 key.output_stride += output_format_size;
226 vb_translated[mgr->ve->ve[i].vertex_buffer_index] = TRUE;
227 tr_elem_index[i] = key.nr_elements;
231 /* Get a translate object. */
232 tr = translate_cache_find(mgr->translate_cache, &key);
234 /* Map buffers we want to translate. */
235 for (i = 0; i < mgr->b.nr_vertex_buffers; i++) {
236 if (vb_translated[i]) {
237 struct pipe_vertex_buffer *vb = &mgr->b.vertex_buffer[i];
239 vb_map[i] = pipe_buffer_map(mgr->pipe, vb->buffer,
240 PIPE_TRANSFER_READ, &vb_transfer[i]);
242 tr->set_buffer(tr, i,
243 vb_map[i] + vb->buffer_offset + vb->stride * min_index,
248 /* Create and map the output buffer. */
249 num_verts = max_index + 1 - min_index;
251 u_upload_alloc(mgr->b.uploader,
252 key.output_stride * min_index,
253 key.output_stride * num_verts,
254 &out_offset, &out_buffer, &upload_flushed,
257 out_offset -= key.output_stride * min_index;
260 tr->run(tr, 0, num_verts, 0, out_map);
262 /* Unmap all buffers. */
263 for (i = 0; i < mgr->b.nr_vertex_buffers; i++) {
264 if (vb_translated[i]) {
265 pipe_buffer_unmap(mgr->pipe, vb_transfer[i]);
269 /* Setup the new vertex buffer in the first free slot. */
270 mgr->translate_vb_slot = ~0;
271 for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
272 if (!mgr->b.vertex_buffer[i].buffer) {
273 mgr->translate_vb_slot = i;
275 if (i >= mgr->b.nr_vertex_buffers) {
276 mgr->b.nr_real_vertex_buffers = i+1;
282 if (mgr->translate_vb_slot != ~0) {
283 /* Setup the new vertex buffer. */
284 pipe_resource_reference(
285 &mgr->b.real_vertex_buffer[mgr->translate_vb_slot].buffer, out_buffer);
286 mgr->b.real_vertex_buffer[mgr->translate_vb_slot].buffer_offset = out_offset;
287 mgr->b.real_vertex_buffer[mgr->translate_vb_slot].stride = key.output_stride;
289 /* Setup new vertex elements. */
290 for (i = 0; i < mgr->ve->count; i++) {
291 if (tr_elem_index[i] < key.nr_elements) {
292 te = &key.element[tr_elem_index[i]];
293 new_velems[i].instance_divisor = mgr->ve->ve[i].instance_divisor;
294 new_velems[i].src_format = te->output_format;
295 new_velems[i].src_offset = te->output_offset;
296 new_velems[i].vertex_buffer_index = mgr->translate_vb_slot;
298 memcpy(&new_velems[i], &mgr->ve->ve[i],
299 sizeof(struct pipe_vertex_element));
304 mgr->pipe->create_vertex_elements_state(mgr->pipe, mgr->ve->count,
307 /* Preserve saved_ve. */
308 mgr->ve_binding_lock = TRUE;
309 mgr->pipe->bind_vertex_elements_state(mgr->pipe, mgr->fallback_ve);
310 mgr->ve_binding_lock = FALSE;
313 pipe_resource_reference(&out_buffer, NULL);
316 static void u_vbuf_translate_end(struct u_vbuf_priv *mgr)
318 if (mgr->fallback_ve == NULL) {
322 /* Restore vertex elements. */
323 /* Note that saved_ve will be overwritten in bind_vertex_elements_state. */
324 mgr->pipe->bind_vertex_elements_state(mgr->pipe, mgr->saved_ve);
325 mgr->pipe->delete_vertex_elements_state(mgr->pipe, mgr->fallback_ve);
326 mgr->fallback_ve = NULL;
328 /* Delete the now-unused VBO. */
329 pipe_resource_reference(&mgr->b.real_vertex_buffer[mgr->translate_vb_slot].buffer,
331 mgr->b.nr_real_vertex_buffers = mgr->b.nr_vertex_buffers;
334 #define FORMAT_REPLACE(what, withwhat) \
335 case PIPE_FORMAT_##what: format = PIPE_FORMAT_##withwhat; break
337 struct u_vbuf_elements *
338 u_vbuf_create_vertex_elements(struct u_vbuf_mgr *mgrb,
340 const struct pipe_vertex_element *attribs,
341 struct pipe_vertex_element *native_attribs)
343 struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb;
345 struct u_vbuf_elements *ve = CALLOC_STRUCT(u_vbuf_elements);
353 memcpy(ve->ve, attribs, sizeof(struct pipe_vertex_element) * count);
354 memcpy(native_attribs, attribs, sizeof(struct pipe_vertex_element) * count);
356 /* Set the best native format in case the original format is not
358 for (i = 0; i < count; i++) {
359 enum pipe_format format = ve->ve[i].src_format;
361 ve->src_format_size[i] = util_format_get_blocksize(format);
363 /* Choose a native format.
364 * For now we don't care about the alignment, that's going to
365 * be sorted out later. */
366 if (!mgr->caps.format_fixed32) {
368 FORMAT_REPLACE(R32_FIXED, R32_FLOAT);
369 FORMAT_REPLACE(R32G32_FIXED, R32G32_FLOAT);
370 FORMAT_REPLACE(R32G32B32_FIXED, R32G32B32_FLOAT);
371 FORMAT_REPLACE(R32G32B32A32_FIXED, R32G32B32A32_FLOAT);
375 if (!mgr->caps.format_float16) {
377 FORMAT_REPLACE(R16_FLOAT, R32_FLOAT);
378 FORMAT_REPLACE(R16G16_FLOAT, R32G32_FLOAT);
379 FORMAT_REPLACE(R16G16B16_FLOAT, R32G32B32_FLOAT);
380 FORMAT_REPLACE(R16G16B16A16_FLOAT, R32G32B32A32_FLOAT);
384 if (!mgr->caps.format_float64) {
386 FORMAT_REPLACE(R64_FLOAT, R32_FLOAT);
387 FORMAT_REPLACE(R64G64_FLOAT, R32G32_FLOAT);
388 FORMAT_REPLACE(R64G64B64_FLOAT, R32G32B32_FLOAT);
389 FORMAT_REPLACE(R64G64B64A64_FLOAT, R32G32B32A32_FLOAT);
393 if (!mgr->caps.format_norm32) {
395 FORMAT_REPLACE(R32_UNORM, R32_FLOAT);
396 FORMAT_REPLACE(R32G32_UNORM, R32G32_FLOAT);
397 FORMAT_REPLACE(R32G32B32_UNORM, R32G32B32_FLOAT);
398 FORMAT_REPLACE(R32G32B32A32_UNORM, R32G32B32A32_FLOAT);
399 FORMAT_REPLACE(R32_SNORM, R32_FLOAT);
400 FORMAT_REPLACE(R32G32_SNORM, R32G32_FLOAT);
401 FORMAT_REPLACE(R32G32B32_SNORM, R32G32B32_FLOAT);
402 FORMAT_REPLACE(R32G32B32A32_SNORM, R32G32B32A32_FLOAT);
406 if (!mgr->caps.format_scaled32) {
408 FORMAT_REPLACE(R32_USCALED, R32_FLOAT);
409 FORMAT_REPLACE(R32G32_USCALED, R32G32_FLOAT);
410 FORMAT_REPLACE(R32G32B32_USCALED, R32G32B32_FLOAT);
411 FORMAT_REPLACE(R32G32B32A32_USCALED,R32G32B32A32_FLOAT);
412 FORMAT_REPLACE(R32_SSCALED, R32_FLOAT);
413 FORMAT_REPLACE(R32G32_SSCALED, R32G32_FLOAT);
414 FORMAT_REPLACE(R32G32B32_SSCALED, R32G32B32_FLOAT);
415 FORMAT_REPLACE(R32G32B32A32_SSCALED,R32G32B32A32_FLOAT);
420 native_attribs[i].src_format = format;
421 ve->native_format[i] = format;
422 ve->native_format_size[i] =
423 util_format_get_blocksize(ve->native_format[i]);
425 ve->incompatible_layout =
426 ve->incompatible_layout ||
427 ve->ve[i].src_format != ve->native_format[i] ||
428 (!mgr->caps.fetch_dword_unaligned && ve->ve[i].src_offset % 4 != 0);
431 /* Align the formats to the size of DWORD if needed. */
432 if (!mgr->caps.fetch_dword_unaligned) {
433 for (i = 0; i < count; i++) {
434 ve->native_format_size[i] = align(ve->native_format_size[i], 4);
441 void u_vbuf_bind_vertex_elements(struct u_vbuf_mgr *mgrb,
443 struct u_vbuf_elements *ve)
445 struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb;
451 if (!mgr->ve_binding_lock) {
457 void u_vbuf_destroy_vertex_elements(struct u_vbuf_mgr *mgr,
458 struct u_vbuf_elements *ve)
463 void u_vbuf_set_vertex_buffers(struct u_vbuf_mgr *mgrb,
465 const struct pipe_vertex_buffer *bufs)
467 struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb;
470 mgr->any_user_vbs = FALSE;
471 mgr->incompatible_vb_layout = FALSE;
473 if (!mgr->caps.fetch_dword_unaligned) {
474 /* Check if the strides and offsets are aligned to the size of DWORD. */
475 for (i = 0; i < count; i++) {
476 if (bufs[i].buffer) {
477 if (bufs[i].stride % 4 != 0 ||
478 bufs[i].buffer_offset % 4 != 0) {
479 mgr->incompatible_vb_layout = TRUE;
486 for (i = 0; i < count; i++) {
487 const struct pipe_vertex_buffer *vb = &bufs[i];
489 pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, vb->buffer);
490 pipe_resource_reference(&mgr->b.real_vertex_buffer[i].buffer, NULL);
492 mgr->b.real_vertex_buffer[i].buffer_offset =
493 mgr->b.vertex_buffer[i].buffer_offset = vb->buffer_offset;
495 mgr->b.real_vertex_buffer[i].stride =
496 mgr->b.vertex_buffer[i].stride = vb->stride;
502 if (u_vbuf_resource(vb->buffer)->user_ptr) {
503 mgr->any_user_vbs = TRUE;
507 pipe_resource_reference(&mgr->b.real_vertex_buffer[i].buffer, vb->buffer);
510 for (i = count; i < mgr->b.nr_vertex_buffers; i++) {
511 pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, NULL);
513 for (i = count; i < mgr->b.nr_real_vertex_buffers; i++) {
514 pipe_resource_reference(&mgr->b.real_vertex_buffer[i].buffer, NULL);
517 mgr->b.nr_vertex_buffers = count;
518 mgr->b.nr_real_vertex_buffers = count;
522 u_vbuf_upload_buffers(struct u_vbuf_priv *mgr,
523 int min_index, int max_index,
524 unsigned instance_count)
527 unsigned count = max_index + 1 - min_index;
528 unsigned nr_velems = mgr->ve->count;
529 unsigned nr_vbufs = mgr->b.nr_vertex_buffers;
530 unsigned start_offset[PIPE_MAX_ATTRIBS];
531 unsigned end_offset[PIPE_MAX_ATTRIBS] = {0};
533 /* Determine how much data needs to be uploaded. */
534 for (i = 0; i < nr_velems; i++) {
535 struct pipe_vertex_element *velem = &mgr->ve->ve[i];
536 unsigned index = velem->vertex_buffer_index;
537 unsigned instance_div = velem->instance_divisor;
538 struct pipe_vertex_buffer *vb = &mgr->b.vertex_buffer[index];
539 unsigned first, size;
543 if (!u_vbuf_resource(vb->buffer)->user_ptr) {
547 first = vb->buffer_offset + velem->src_offset;
550 /* Constant attrib. */
551 size = mgr->ve->src_format_size[i];
552 } else if (instance_div) {
553 /* Per-instance attrib. */
554 unsigned count = (instance_count + instance_div - 1) / instance_div;
555 size = vb->stride * (count - 1) + mgr->ve->src_format_size[i];
557 /* Per-vertex attrib. */
558 first += vb->stride * min_index;
559 size = vb->stride * (count - 1) + mgr->ve->src_format_size[i];
562 /* Update offsets. */
563 if (!end_offset[index]) {
564 start_offset[index] = first;
565 end_offset[index] = first + size;
567 if (first < start_offset[index])
568 start_offset[index] = first;
569 if (first + size > end_offset[index])
570 end_offset[index] = first + size;
574 /* Upload buffers. */
575 for (i = 0; i < nr_vbufs; i++) {
576 unsigned start = start_offset[i];
577 unsigned end = end_offset[i];
585 u_upload_data(mgr->b.uploader, start, end - start,
586 u_vbuf_resource(mgr->b.vertex_buffer[i].buffer)->user_ptr + start,
587 &mgr->b.real_vertex_buffer[i].buffer_offset,
588 &mgr->b.real_vertex_buffer[i].buffer,
591 mgr->b.real_vertex_buffer[i].buffer_offset -= start;
595 static void u_vbuf_compute_max_index(struct u_vbuf_priv *mgr)
597 unsigned i, nr = mgr->ve->count;
599 mgr->b.max_index = ~0;
601 for (i = 0; i < nr; i++) {
602 struct pipe_vertex_buffer *vb =
603 &mgr->b.vertex_buffer[mgr->ve->ve[i].vertex_buffer_index];
604 unsigned max_index, src_size, unused;
608 u_vbuf_resource(vb->buffer)->user_ptr ||
609 mgr->ve->ve[i].instance_divisor) {
613 src_size = mgr->ve->ve[i].src_offset + mgr->ve->src_format_size[i];
615 /* If src_offset is greater than stride (which means it's a buffer
616 * offset rather than a vertex offset)... */
617 if (src_size >= vb->stride) {
620 /* How many bytes is unused after the last vertex.
621 * width0 may be "count*stride - unused" and we have to compensate
622 * for that when dividing by stride. */
623 unused = vb->stride - src_size;
626 /* Compute the maximum index for this vertex element. */
628 (vb->buffer->width0 - vb->buffer_offset + (unsigned)unused) /
631 mgr->b.max_index = MIN2(mgr->b.max_index, max_index);
635 enum u_vbuf_return_flags
636 u_vbuf_draw_begin(struct u_vbuf_mgr *mgrb,
637 const struct pipe_draw_info *info)
639 struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb;
640 int min_index, max_index;
642 u_vbuf_compute_max_index(mgr);
645 min_index = info->min_index;
646 if (info->max_index == ~0) {
647 max_index = mgr->b.max_index;
649 max_index = MIN2(info->max_index, mgr->b.max_index);
651 min_index += info->index_bias;
652 max_index += info->index_bias;
654 min_index = info->start;
655 max_index = info->start + info->count - 1;
658 /* Translate vertices with non-native layouts or formats. */
659 if (mgr->incompatible_vb_layout || mgr->ve->incompatible_layout) {
660 u_vbuf_translate_begin(mgr, min_index, max_index);
663 /* Upload user buffers. */
664 if (mgr->any_user_vbs) {
665 u_vbuf_upload_buffers(mgr, min_index, max_index, info->instance_count);
667 return mgr->any_user_vbs || mgr->fallback_ve ? U_VBUF_BUFFERS_UPDATED : 0;
670 void u_vbuf_draw_end(struct u_vbuf_mgr *mgrb)
672 struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb;
674 if (mgr->fallback_ve) {
675 u_vbuf_translate_end(mgr);