1 /**************************************************************************
3 Copyright 2002-2008 VMware, Inc.
7 Permission is hereby granted, free of charge, to any person obtaining a
8 copy of this software and associated documentation files (the "Software"),
9 to deal in the Software without restriction, including without limitation
10 on the rights to use, copy, modify, merge, publish, distribute, sub
11 license, and/or sell copies of the Software, and to permit persons to whom
12 the Software is furnished to do so, subject to the following conditions:
14 The above copyright notice and this permission notice (including the next
15 paragraph) shall be included in all copies or substantial portions of the
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 VMWARE AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 * Keith Whitwell <keithw@vmware.com>
35 /* Display list compiler attempts to store lists of vertices with the
36 * same vertex layout. Additionally it attempts to minimize the need
37 * for execute-time fixup of these vertex lists, allowing them to be
40 * There are still some circumstances where this can be thwarted, for
41 * example by building a list that consists of one very long primitive
42 * (eg Begin(Triangles), 1000 vertices, End), and calling that list
43 * from inside a different begin/end object (Begin(Lines), CallList,
46 * In that case the code will have to replay the list as individual
47 * commands through the Exec dispatch table, or fix up the copied
48 * vertices at execute-time.
50 * The other case where fixup is required is when a vertex attribute
51 * is introduced in the middle of a primitive. Eg:
53 * TexCoord1f() Vertex2f()
54 * TexCoord1f() Color3f() Vertex2f()
57 * If the current value of Color isn't known at compile-time, this
58 * primitive will require fixup.
61 * The list compiler currently doesn't attempt to compile lists
62 * containing EvalCoord or EvalPoint commands. On encountering one of
63 * these, compilation falls back to opcodes.
65 * This could be improved to fallback only when a mix of EvalCoord and
66 * Vertex commands are issued within a single primitive.
70 #include "main/glheader.h"
71 #include "main/arrayobj.h"
72 #include "main/bufferobj.h"
73 #include "main/context.h"
74 #include "main/dlist.h"
75 #include "main/enums.h"
76 #include "main/eval.h"
77 #include "main/macros.h"
78 #include "main/draw_validate.h"
79 #include "main/api_arrayelt.h"
80 #include "main/vtxfmt.h"
81 #include "main/dispatch.h"
82 #include "main/state.h"
83 #include "main/varray.h"
84 #include "util/bitscan.h"
85 #include "util/u_memory.h"
86 #include "util/hash_table.h"
88 #include "gallium/include/pipe/p_state.h"
91 #include "vbo_private.h"
98 /* An interesting VBO number/name to help with debugging */
99 #define VBO_BUF_ID 12345
101 static void GLAPIENTRY
102 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params);
104 static void GLAPIENTRY
105 _save_EvalCoord1f(GLfloat u);
107 static void GLAPIENTRY
108 _save_EvalCoord2f(GLfloat u, GLfloat v);
111 handle_out_of_memory(struct gl_context *ctx)
113 struct vbo_save_context *save = &vbo_context(ctx)->save;
114 _mesa_noop_vtxfmt_init(ctx, &save->vtxfmt);
115 save->out_of_memory = true;
119 * NOTE: Old 'parity' issue is gone, but copying can still be
120 * wrong-footed on replay.
123 copy_vertices(struct gl_context *ctx,
124 const struct vbo_save_vertex_list *node,
125 const fi_type * src_buffer)
127 struct vbo_save_context *save = &vbo_context(ctx)->save;
128 struct _mesa_prim *prim = &node->cold->prims[node->cold->prim_count - 1];
129 GLuint sz = save->vertex_size;
130 const fi_type *src = src_buffer + prim->start * sz;
131 fi_type *dst = save->copied.buffer;
136 return vbo_copy_vertices(ctx, prim->mode, prim->start, &prim->count,
137 prim->begin, sz, true, dst, src);
141 static struct vbo_save_vertex_store *
142 realloc_vertex_store(struct vbo_save_vertex_store *store, uint32_t vertex_size, int vertex_count)
145 store = CALLOC_STRUCT(vbo_save_vertex_store);
147 int new_size = MAX2(vertex_count * vertex_size, VBO_SAVE_BUFFER_SIZE) * sizeof(GLfloat);
148 if (new_size > store->buffer_in_ram_size) {
149 store->buffer_in_ram_size = new_size;
150 store->buffer_in_ram = realloc(store->buffer_in_ram, store->buffer_in_ram_size);
157 static struct vbo_save_primitive_store *
158 realloc_prim_store(struct vbo_save_primitive_store *store, int prim_count)
161 store = CALLOC_STRUCT(vbo_save_primitive_store);
162 uint32_t old_size = store->size;
163 store->size = MAX3(store->size, prim_count, VBO_SAVE_PRIM_SIZE);
164 store->prims = realloc(store->prims, store->size * sizeof(struct _mesa_prim));
165 memset(&store->prims[old_size], 0, (store->size - old_size) * sizeof(struct _mesa_prim));
172 reset_counters(struct gl_context *ctx)
174 struct vbo_save_context *save = &vbo_context(ctx)->save;
176 save->vertex_store->used = 0;
177 save->prim_store->used = 0;
178 save->vert_count = 0;
179 save->dangling_attr_ref = GL_FALSE;
183 * For a list of prims, try merging prims that can just be extensions of the
187 merge_prims(struct gl_context *ctx, struct _mesa_prim *prim_list,
191 struct _mesa_prim *prev_prim = prim_list;
193 for (i = 1; i < *prim_count; i++) {
194 struct _mesa_prim *this_prim = prim_list + i;
196 vbo_try_prim_conversion(&this_prim->mode, &this_prim->count);
198 if (vbo_merge_draws(ctx, true,
199 prev_prim->mode, this_prim->mode,
200 prev_prim->start, this_prim->start,
201 &prev_prim->count, this_prim->count,
202 prev_prim->basevertex, this_prim->basevertex,
204 this_prim->begin, this_prim->end)) {
205 /* We've found a prim that just extend the previous one. Tack it
206 * onto the previous one, and let this primitive struct get dropped.
211 /* If any previous primitives have been dropped, then we need to copy
212 * this later one into the next available slot.
215 if (prev_prim != this_prim)
216 *prev_prim = *this_prim;
219 *prim_count = prev_prim - prim_list + 1;
224 * Convert GL_LINE_LOOP primitive into GL_LINE_STRIP so that drivers
225 * don't have to worry about handling the _mesa_prim::begin/end flags.
226 * See https://bugs.freedesktop.org/show_bug.cgi?id=81174
229 convert_line_loop_to_strip(struct vbo_save_context *save,
230 struct vbo_save_vertex_list *node)
232 struct _mesa_prim *prim = &node->cold->prims[node->cold->prim_count - 1];
234 assert(prim->mode == GL_LINE_LOOP);
237 /* Copy the 0th vertex to end of the buffer and extend the
238 * vertex count by one to finish the line loop.
240 const GLuint sz = save->vertex_size;
242 const fi_type *src = save->vertex_store->buffer_in_ram + prim->start * sz;
244 fi_type *dst = save->vertex_store->buffer_in_ram + (prim->start + prim->count) * sz;
246 memcpy(dst, src, sz * sizeof(float));
249 node->cold->vertex_count++;
251 save->vertex_store->used += sz;
255 /* Drawing the second or later section of a long line loop.
256 * Skip the 0th vertex.
262 prim->mode = GL_LINE_STRIP;
266 /* Compare the present vao if it has the same setup. */
268 compare_vao(gl_vertex_processing_mode mode,
269 const struct gl_vertex_array_object *vao,
270 const struct gl_buffer_object *bo, GLintptr buffer_offset,
271 GLuint stride, GLbitfield64 vao_enabled,
272 const GLubyte size[VBO_ATTRIB_MAX],
273 const GLenum16 type[VBO_ATTRIB_MAX],
274 const GLuint offset[VBO_ATTRIB_MAX])
279 /* If the enabled arrays are not the same we are not equal. */
280 if (vao_enabled != vao->Enabled)
283 /* Check the buffer binding at 0 */
284 if (vao->BufferBinding[0].BufferObj != bo)
286 /* BufferBinding[0].Offset != buffer_offset is checked per attribute */
287 if (vao->BufferBinding[0].Stride != stride)
289 assert(vao->BufferBinding[0].InstanceDivisor == 0);
291 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space */
292 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
294 /* Now check the enabled arrays */
295 GLbitfield mask = vao_enabled;
297 const int attr = u_bit_scan(&mask);
298 const unsigned char vbo_attr = vao_to_vbo_map[attr];
299 const GLenum16 tp = type[vbo_attr];
300 const GLintptr off = offset[vbo_attr] + buffer_offset;
301 const struct gl_array_attributes *attrib = &vao->VertexAttrib[attr];
302 if (attrib->RelativeOffset + vao->BufferBinding[0].Offset != off)
304 if (attrib->Format.Type != tp)
306 if (attrib->Format.Size != size[vbo_attr])
308 assert(attrib->Format.Format == GL_RGBA);
309 assert(attrib->Format.Normalized == GL_FALSE);
310 assert(attrib->Format.Integer == vbo_attrtype_to_integer_flag(tp));
311 assert(attrib->Format.Doubles == vbo_attrtype_to_double_flag(tp));
312 assert(attrib->BufferBindingIndex == 0);
319 /* Create or reuse the vao for the vertex processing mode. */
321 update_vao(struct gl_context *ctx,
322 gl_vertex_processing_mode mode,
323 struct gl_vertex_array_object **vao,
324 struct gl_buffer_object *bo, GLintptr buffer_offset,
325 GLuint stride, GLbitfield64 vbo_enabled,
326 const GLubyte size[VBO_ATTRIB_MAX],
327 const GLenum16 type[VBO_ATTRIB_MAX],
328 const GLuint offset[VBO_ATTRIB_MAX])
330 /* Compute the bitmasks of vao_enabled arrays */
331 GLbitfield vao_enabled = _vbo_get_vao_enabled_from_vbo(mode, vbo_enabled);
334 * Check if we can possibly reuse the exisiting one.
335 * In the long term we should reset them when something changes.
337 if (compare_vao(mode, *vao, bo, buffer_offset, stride,
338 vao_enabled, size, type, offset))
341 /* The initial refcount is 1 */
342 _mesa_reference_vao(ctx, vao, NULL);
343 *vao = _mesa_new_vao(ctx, ~((GLuint)0));
346 * assert(stride <= ctx->Const.MaxVertexAttribStride);
347 * MaxVertexAttribStride is not set for drivers that does not
348 * expose GL 44 or GLES 31.
351 /* Bind the buffer object at binding point 0 */
352 _mesa_bind_vertex_buffer(ctx, *vao, 0, bo, buffer_offset, stride, false,
355 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space
356 * Note that the position/generic0 aliasing is done in the VAO.
358 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
359 /* Now set the enable arrays */
360 GLbitfield mask = vao_enabled;
362 const int vao_attr = u_bit_scan(&mask);
363 const GLubyte vbo_attr = vao_to_vbo_map[vao_attr];
364 assert(offset[vbo_attr] <= ctx->Const.MaxVertexAttribRelativeOffset);
366 _vbo_set_attrib_format(ctx, *vao, vao_attr, buffer_offset,
367 size[vbo_attr], type[vbo_attr], offset[vbo_attr]);
368 _mesa_vertex_attrib_binding(ctx, *vao, vao_attr, 0);
370 _mesa_enable_vertex_array_attribs(ctx, *vao, vao_enabled);
371 assert(vao_enabled == (*vao)->Enabled);
372 assert((vao_enabled & ~(*vao)->VertexAttribBufferMask) == 0);
374 /* Finalize and freeze the VAO */
375 _mesa_set_vao_immutable(ctx, *vao);
379 static void wrap_filled_vertex(struct gl_context *ctx);
380 static void compile_vertex_list(struct gl_context *ctx);
383 realloc_storage(struct gl_context *ctx, int prim_count, int vertex_count)
385 struct vbo_save_context *save = &vbo_context(ctx)->save;
386 const int ten_MB = 10 * 1024 * 1024;
388 /* Limit how much memory we allocate. */
389 if (save->prim_store->used > 0 &&
391 vertex_count * save->vertex_size > ten_MB) {
392 wrap_filled_vertex(ctx);
393 vertex_count = ten_MB / save->vertex_size;
396 if (prim_count > 0 &&
397 prim_count * sizeof(struct _mesa_prim) > ten_MB) {
398 if (save->prim_store->used > 0)
399 compile_vertex_list(ctx);
400 prim_count = ten_MB / sizeof(struct _mesa_prim);
403 if (vertex_count >= 0)
404 save->vertex_store = realloc_vertex_store(save->vertex_store, save->vertex_size, vertex_count);
407 save->prim_store = realloc_prim_store(save->prim_store, prim_count);
409 if (save->vertex_store->buffer_in_ram == NULL ||
410 save->prim_store->prims == NULL)
411 handle_out_of_memory(ctx);
415 unsigned vertex_size;
416 fi_type *vertex_attributes;
419 static uint32_t _hash_vertex_key(const void *key)
421 struct vertex_key *k = (struct vertex_key*)key;
422 unsigned sz = k->vertex_size;
424 return _mesa_hash_data(k->vertex_attributes, sz * sizeof(float));
427 static bool _compare_vertex_key(const void *key1, const void *key2)
429 struct vertex_key *k1 = (struct vertex_key*)key1;
430 struct vertex_key *k2 = (struct vertex_key*)key2;
431 /* All the compared vertices are going to be drawn with the same VAO,
432 * so we can compare the attributes. */
433 assert (k1->vertex_size == k2->vertex_size);
434 return memcmp(k1->vertex_attributes,
435 k2->vertex_attributes,
436 k1->vertex_size * sizeof(float)) == 0;
439 static void _free_entry(struct hash_entry *entry)
441 free((void*)entry->key);
444 /* Add vertex to the vertex buffer and return its index. If this vertex is a duplicate
445 * of an existing vertex, return the original index instead.
448 add_vertex(struct vbo_save_context *save, struct hash_table *hash_to_index,
449 uint32_t index, fi_type *new_buffer, uint32_t *max_index)
451 /* If vertex deduplication is disabled return the original index. */
455 fi_type *vert = save->vertex_store->buffer_in_ram + save->vertex_size * index;
457 struct vertex_key *key = malloc(sizeof(struct vertex_key));
458 key->vertex_size = save->vertex_size;
459 key->vertex_attributes = vert;
461 struct hash_entry *entry = _mesa_hash_table_search(hash_to_index, key);
464 /* We found an existing vertex with the same hash, return its index. */
465 return (uintptr_t) entry->data;
467 /* This is a new vertex. Determine a new index and copy its attributes to the vertex
468 * buffer. Note that 'new_buffer' is created at each list compilation so we write vertices
469 * starting at index 0.
471 uint32_t n = _mesa_hash_table_num_entries(hash_to_index);
472 *max_index = MAX2(n, *max_index);
474 memcpy(&new_buffer[save->vertex_size * n],
476 save->vertex_size * sizeof(fi_type));
478 _mesa_hash_table_insert(hash_to_index, key, (void*)(uintptr_t)(n));
480 /* The index buffer is shared between list compilations, so add the base index to get
489 * Insert the active immediate struct onto the display list currently
493 compile_vertex_list(struct gl_context *ctx)
495 struct vbo_save_context *save = &vbo_context(ctx)->save;
496 struct vbo_save_vertex_list *node;
498 /* Allocate space for this structure in the display list currently
501 node = (struct vbo_save_vertex_list *)
502 _mesa_dlist_alloc_vertex_list(ctx, !save->dangling_attr_ref && !save->no_current_update);
507 memset(node, 0, sizeof(struct vbo_save_vertex_list));
508 node->cold = calloc(1, sizeof(*node->cold));
510 /* Make sure the pointer is aligned to the size of a pointer */
511 assert((GLintptr) node % sizeof(void *) == 0);
513 const GLsizei stride = save->vertex_size*sizeof(GLfloat);
515 node->cold->vertex_count = save->vert_count;
516 node->cold->wrap_count = save->copied.nr;
517 node->cold->prims = malloc(sizeof(struct _mesa_prim) * save->prim_store->used);
518 memcpy(node->cold->prims, save->prim_store->prims, sizeof(struct _mesa_prim) * save->prim_store->used);
519 node->cold->ib.obj = NULL;
520 node->cold->prim_count = save->prim_store->used;
522 if (save->no_current_update) {
523 node->cold->current_data = NULL;
526 GLuint current_size = save->vertex_size - save->attrsz[0];
527 node->cold->current_data = NULL;
530 node->cold->current_data = malloc(current_size * sizeof(GLfloat));
531 if (node->cold->current_data) {
532 const char *buffer = (const char *)save->vertex_store->buffer_in_ram;
533 unsigned attr_offset = save->attrsz[0] * sizeof(GLfloat);
534 unsigned vertex_offset = 0;
536 if (node->cold->vertex_count)
537 vertex_offset = (node->cold->vertex_count - 1) * stride;
539 memcpy(node->cold->current_data, buffer + vertex_offset + attr_offset,
540 current_size * sizeof(GLfloat));
542 _mesa_error(ctx, GL_OUT_OF_MEMORY, "Current value allocation");
543 handle_out_of_memory(ctx);
548 assert(save->attrsz[VBO_ATTRIB_POS] != 0 || node->cold->vertex_count == 0);
550 if (save->dangling_attr_ref)
551 ctx->ListState.Current.UseLoopback = true;
553 /* Copy duplicated vertices
555 save->copied.nr = copy_vertices(ctx, node, save->vertex_store->buffer_in_ram);
557 if (node->cold->prims[node->cold->prim_count - 1].mode == GL_LINE_LOOP) {
558 convert_line_loop_to_strip(save, node);
561 merge_prims(ctx, node->cold->prims, &node->cold->prim_count);
563 GLintptr buffer_offset = 0;
564 GLuint start_offset = 0;
566 /* Create an index buffer. */
567 node->cold->min_index = node->cold->max_index = 0;
568 if (save->vert_count == 0 || node->cold->prim_count == 0)
571 /* We won't modify node->prims, so use a const alias to avoid unintended
573 const struct _mesa_prim *original_prims = node->cold->prims;
575 int end = original_prims[node->cold->prim_count - 1].start +
576 original_prims[node->cold->prim_count - 1].count;
577 int total_vert_count = end - original_prims[0].start;
579 node->cold->min_index = node->cold->prims[0].start;
580 node->cold->max_index = end - 1;
582 int max_index_count = total_vert_count * 2;
584 int size = max_index_count * sizeof(uint32_t);
585 uint32_t* indices = (uint32_t*) malloc(size);
586 struct _mesa_prim *merged_prims = NULL;
589 struct hash_table *vertex_to_index = NULL;
590 fi_type *temp_vertices_buffer = NULL;
592 /* The loopback replay code doesn't use the index buffer, so we can't
593 * dedup vertices in this case.
595 if (!ctx->ListState.Current.UseLoopback) {
596 vertex_to_index = _mesa_hash_table_create(NULL, _hash_vertex_key, _compare_vertex_key);
597 temp_vertices_buffer = malloc(save->vertex_store->buffer_in_ram_size);
600 uint32_t max_index = 0;
602 int last_valid_prim = -1;
603 /* Construct indices array. */
604 for (unsigned i = 0; i < node->cold->prim_count; i++) {
605 assert(original_prims[i].basevertex == 0);
606 GLubyte mode = original_prims[i].mode;
608 int vertex_count = original_prims[i].count;
613 /* Line strips may get converted to lines */
614 if (mode == GL_LINE_STRIP)
617 /* If 2 consecutive prims use the same mode => merge them. */
618 bool merge_prims = last_valid_prim >= 0 &&
619 mode == merged_prims[last_valid_prim].mode &&
620 mode != GL_LINE_LOOP && mode != GL_TRIANGLE_FAN &&
621 mode != GL_QUAD_STRIP && mode != GL_POLYGON &&
624 /* To be able to merge consecutive triangle strips we need to insert
625 * a degenerate triangle.
628 mode == GL_TRIANGLE_STRIP) {
629 /* Insert a degenerate triangle */
630 assert(merged_prims[last_valid_prim].mode == GL_TRIANGLE_STRIP);
631 unsigned tri_count = merged_prims[last_valid_prim].count - 2;
633 indices[idx] = indices[idx - 1];
634 indices[idx + 1] = add_vertex(save, vertex_to_index, original_prims[i].start,
635 temp_vertices_buffer, &max_index);
637 merged_prims[last_valid_prim].count += 2;
640 /* Add another index to preserve winding order */
641 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start,
642 temp_vertices_buffer, &max_index);
643 merged_prims[last_valid_prim].count++;
649 /* Convert line strips to lines if it'll allow if the previous
650 * prim mode is GL_LINES (so merge_prims is true) or if the next
651 * primitive mode is GL_LINES or GL_LINE_LOOP.
653 if (original_prims[i].mode == GL_LINE_STRIP &&
655 (i < node->cold->prim_count - 1 &&
656 (original_prims[i + 1].mode == GL_LINE_STRIP ||
657 original_prims[i + 1].mode == GL_LINES)))) {
658 for (unsigned j = 0; j < vertex_count; j++) {
659 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start + j,
660 temp_vertices_buffer, &max_index);
661 /* Repeat all but the first/last indices. */
662 if (j && j != vertex_count - 1) {
663 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start + j,
664 temp_vertices_buffer, &max_index);
668 /* We didn't convert to LINES, so restore the original mode */
669 mode = original_prims[i].mode;
671 for (unsigned j = 0; j < vertex_count; j++) {
672 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start + j,
673 temp_vertices_buffer, &max_index);
678 /* Update vertex count. */
679 merged_prims[last_valid_prim].count += idx - start;
681 /* Keep this primitive */
682 last_valid_prim += 1;
683 assert(last_valid_prim <= i);
684 merged_prims = realloc(merged_prims, (1 + last_valid_prim) * sizeof(struct _mesa_prim));
685 merged_prims[last_valid_prim] = original_prims[i];
686 merged_prims[last_valid_prim].start = start;
687 merged_prims[last_valid_prim].count = idx - start;
689 merged_prims[last_valid_prim].mode = mode;
692 assert(idx > 0 && idx <= max_index_count);
694 unsigned merged_prim_count = last_valid_prim + 1;
695 node->cold->ib.ptr = NULL;
696 node->cold->ib.count = idx;
697 node->cold->ib.index_size_shift = (GL_UNSIGNED_INT - GL_UNSIGNED_BYTE) >> 1;
699 /* How many bytes do we need to store the indices and the vertices */
700 total_vert_count = vertex_to_index ? (max_index + 1) : idx;
701 unsigned total_bytes_needed = idx * sizeof(uint32_t) +
702 total_vert_count * save->vertex_size * sizeof(fi_type);
704 const GLintptr old_offset = save->VAO[0] ?
705 save->VAO[0]->BufferBinding[0].Offset + save->VAO[0]->VertexAttrib[VERT_ATTRIB_POS].RelativeOffset : 0;
706 if (old_offset != save->current_bo_bytes_used && stride > 0) {
707 GLintptr offset_diff = save->current_bo_bytes_used - old_offset;
708 while (offset_diff > 0 &&
709 save->current_bo_bytes_used < save->current_bo->Size &&
710 offset_diff % stride != 0) {
711 save->current_bo_bytes_used++;
712 offset_diff = save->current_bo_bytes_used - old_offset;
715 buffer_offset = save->current_bo_bytes_used;
717 /* Can we reuse the previous bo or should we allocate a new one? */
718 int available_bytes = save->current_bo ? save->current_bo->Size - save->current_bo_bytes_used : 0;
719 if (total_bytes_needed > available_bytes) {
720 if (save->current_bo)
721 _mesa_reference_buffer_object(ctx, &save->current_bo, NULL);
722 save->current_bo = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID + 1);
723 bool success = ctx->Driver.BufferData(ctx,
724 GL_ELEMENT_ARRAY_BUFFER_ARB,
725 MAX2(total_bytes_needed, VBO_SAVE_BUFFER_SIZE * sizeof(uint32_t)),
727 GL_STATIC_DRAW_ARB, GL_MAP_WRITE_BIT,
730 _mesa_reference_buffer_object(ctx, &save->current_bo, NULL);
731 _mesa_error(ctx, GL_OUT_OF_MEMORY, "IB allocation");
732 handle_out_of_memory(ctx);
734 save->current_bo_bytes_used = 0;
735 available_bytes = save->current_bo->Size;
739 assert(old_offset <= buffer_offset);
740 const GLintptr offset_diff = buffer_offset - old_offset;
741 if (offset_diff > 0 && stride > 0 && offset_diff % stride == 0) {
742 /* The vertex size is an exact multiple of the buffer offset.
743 * This means that we can use zero-based vertex attribute pointers
744 * and specify the start of the primitive with the _mesa_prim::start
745 * field. This results in issuing several draw calls with identical
746 * vertex attribute information. This can result in fewer state
747 * changes in drivers. In particular, the Gallium CSO module will
748 * filter out redundant vertex buffer changes.
750 /* We cannot immediately update the primitives as some methods below
751 * still need the uncorrected start vertices
753 start_offset = offset_diff/stride;
754 assert(old_offset == buffer_offset - offset_diff);
755 buffer_offset = old_offset;
758 /* Correct the primitive starts, we can only do this here as copy_vertices
759 * and convert_line_loop_to_strip above consume the uncorrected starts.
760 * On the other hand the _vbo_loopback_vertex_list call below needs the
761 * primitives to be corrected already.
763 for (unsigned i = 0; i < node->cold->prim_count; i++) {
764 node->cold->prims[i].start += start_offset;
766 /* start_offset shifts vertices (so v[0] becomes v[start_offset]), so we have
767 * to apply this transformation to all indices and max_index.
769 for (unsigned i = 0; i < idx; i++)
770 indices[i] += start_offset;
771 max_index += start_offset;
774 _mesa_reference_buffer_object(ctx, &node->cold->ib.obj, save->current_bo);
776 /* Upload the vertices first (see buffer_offset) */
777 ctx->Driver.BufferSubData(ctx,
778 save->current_bo_bytes_used,
779 total_vert_count * save->vertex_size * sizeof(fi_type),
780 vertex_to_index ? temp_vertices_buffer : save->vertex_store->buffer_in_ram,
782 save->current_bo_bytes_used += total_vert_count * save->vertex_size * sizeof(fi_type);
784 if (vertex_to_index) {
785 _mesa_hash_table_destroy(vertex_to_index, _free_entry);
786 free(temp_vertices_buffer);
789 /* Since we're append the indices to an existing buffer, we need to adjust the start value of each
790 * primitive (not the indices themselves). */
791 save->current_bo_bytes_used += align(save->current_bo_bytes_used, 4) - save->current_bo_bytes_used;
792 int indices_offset = save->current_bo_bytes_used / 4;
793 for (int i = 0; i < merged_prim_count; i++) {
794 merged_prims[i].start += indices_offset;
797 /* Then upload the indices. */
798 if (node->cold->ib.obj) {
799 ctx->Driver.BufferSubData(ctx,
800 save->current_bo_bytes_used,
801 idx * sizeof(uint32_t),
804 save->current_bo_bytes_used += idx * sizeof(uint32_t);
806 node->cold->vertex_count = 0;
807 node->cold->prim_count = 0;
810 /* Prepare for DrawGallium */
811 memset(&node->merged.info, 0, sizeof(struct pipe_draw_info));
812 /* The other info fields will be updated in vbo_save_playback_vertex_list */
813 node->merged.info.index_size = 4;
814 node->merged.info.instance_count = 1;
815 node->merged.info.index.gl_bo = node->cold->ib.obj;
816 if (merged_prim_count == 1) {
817 node->merged.info.mode = merged_prims[0].mode;
818 node->merged.start_count.start = merged_prims[0].start;
819 node->merged.start_count.count = merged_prims[0].count;
820 node->merged.start_count.index_bias = 0;
821 node->merged.mode = NULL;
823 node->merged.mode = malloc(merged_prim_count * sizeof(unsigned char));
824 node->merged.start_counts = malloc(merged_prim_count * sizeof(struct pipe_draw_start_count_bias));
825 for (unsigned i = 0; i < merged_prim_count; i++) {
826 node->merged.start_counts[i].start = merged_prims[i].start;
827 node->merged.start_counts[i].count = merged_prims[i].count;
828 node->merged.start_counts[i].index_bias = 0;
829 node->merged.mode[i] = merged_prims[i].mode;
832 node->merged.num_draws = merged_prim_count;
833 if (node->merged.num_draws > 1) {
834 bool same_mode = true;
835 for (unsigned i = 1; i < node->merged.num_draws && same_mode; i++) {
836 same_mode = node->merged.mode[i] == node->merged.mode[0];
839 /* All primitives use the same mode, so we can simplify a bit */
840 node->merged.info.mode = node->merged.mode[0];
841 free(node->merged.mode);
842 node->merged.mode = NULL;
851 if (!save->current_bo) {
852 save->current_bo = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID + 1);
853 bool success = ctx->Driver.BufferData(ctx,
854 GL_ELEMENT_ARRAY_BUFFER_ARB,
855 VBO_SAVE_BUFFER_SIZE * sizeof(uint32_t),
857 GL_STATIC_DRAW_ARB, GL_MAP_WRITE_BIT,
860 handle_out_of_memory(ctx);
863 GLuint offsets[VBO_ATTRIB_MAX];
864 for (unsigned i = 0, offset = 0; i < VBO_ATTRIB_MAX; ++i) {
866 offset += save->attrsz[i] * sizeof(GLfloat);
868 /* Create a pair of VAOs for the possible VERTEX_PROCESSING_MODEs
869 * Note that this may reuse the previous one of possible.
871 for (gl_vertex_processing_mode vpm = VP_MODE_FF; vpm < VP_MODE_MAX; ++vpm) {
872 /* create or reuse the vao */
873 update_vao(ctx, vpm, &save->VAO[vpm],
874 save->current_bo, buffer_offset, stride,
875 save->enabled, save->attrsz, save->attrtype, offsets);
876 /* Reference the vao in the dlist */
877 node->VAO[vpm] = NULL;
878 _mesa_reference_vao(ctx, &node->VAO[vpm], save->VAO[vpm]);
882 /* Deal with GL_COMPILE_AND_EXECUTE:
884 if (ctx->ExecuteFlag) {
885 struct _glapi_table *dispatch = GET_DISPATCH();
887 _glapi_set_dispatch(ctx->Exec);
889 /* _vbo_loopback_vertex_list doesn't use the index buffer, so we have to
890 * use buffer_in_ram instead of current_bo which contains all vertices instead
891 * of the deduplicated vertices only in the !UseLoopback case.
893 * The problem is that the VAO offset is based on current_bo's layout,
894 * so we have to use a temp value.
896 struct gl_vertex_array_object *vao = node->VAO[VP_MODE_SHADER];
897 GLintptr original = vao->BufferBinding[0].Offset;
898 if (!ctx->ListState.Current.UseLoopback) {
899 GLintptr new_offset = 0;
900 /* 'start_offset' has been added to all primitives 'start', so undo it here. */
901 new_offset -= start_offset * stride;
902 vao->BufferBinding[0].Offset = new_offset;
904 _vbo_loopback_vertex_list(ctx, node, save->vertex_store->buffer_in_ram);
905 vao->BufferBinding[0].Offset = original;
907 _glapi_set_dispatch(dispatch);
910 /* Reset our structures for the next run of vertices:
917 * This is called when we fill a vertex buffer before we hit a glEnd().
919 * TODO -- If no new vertices have been stored, don't bother saving it.
922 wrap_buffers(struct gl_context *ctx)
924 struct vbo_save_context *save = &vbo_context(ctx)->save;
925 GLint i = save->prim_store->used - 1;
928 assert(i < (GLint) save->prim_store->size);
931 /* Close off in-progress primitive.
933 save->prim_store->prims[i].count = (save->vert_count - save->prim_store->prims[i].start);
934 mode = save->prim_store->prims[i].mode;
936 /* store the copied vertices, and allocate a new list.
938 compile_vertex_list(ctx);
940 /* Restart interrupted primitive
942 save->prim_store->prims[0].mode = mode;
943 save->prim_store->prims[0].begin = 0;
944 save->prim_store->prims[0].end = 0;
945 save->prim_store->prims[0].start = 0;
946 save->prim_store->prims[0].count = 0;
947 save->prim_store->used = 1;
952 * Called only when buffers are wrapped as the result of filling the
953 * vertex_store struct.
956 wrap_filled_vertex(struct gl_context *ctx)
958 struct vbo_save_context *save = &vbo_context(ctx)->save;
959 unsigned numComponents;
960 ASSERTED uint32_t max_vert = save->vertex_size ?
961 save->vertex_store->buffer_in_ram_size / (sizeof(float) * save->vertex_size) : 0;
963 /* Emit a glEnd to close off the last vertex list.
967 /* Copy stored stored vertices to start of new list.
969 assert(max_vert - save->vert_count > save->copied.nr);
971 numComponents = save->copied.nr * save->vertex_size;
973 fi_type *buffer_ptr = save->vertex_store->buffer_in_ram;
976 numComponents * sizeof(fi_type));
977 assert(save->vertex_store->used == 0 && save->vert_count == 0);
978 save->vert_count = save->copied.nr;
979 save->vertex_store->used = numComponents;
984 copy_to_current(struct gl_context *ctx)
986 struct vbo_save_context *save = &vbo_context(ctx)->save;
987 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
990 const int i = u_bit_scan64(&enabled);
991 assert(save->attrsz[i]);
993 if (save->attrtype[i] == GL_DOUBLE ||
994 save->attrtype[i] == GL_UNSIGNED_INT64_ARB)
995 memcpy(save->current[i], save->attrptr[i], save->attrsz[i] * sizeof(GLfloat));
997 COPY_CLEAN_4V_TYPE_AS_UNION(save->current[i], save->attrsz[i],
998 save->attrptr[i], save->attrtype[i]);
1004 copy_from_current(struct gl_context *ctx)
1006 struct vbo_save_context *save = &vbo_context(ctx)->save;
1007 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
1010 const int i = u_bit_scan64(&enabled);
1012 switch (save->attrsz[i]) {
1014 save->attrptr[i][3] = save->current[i][3];
1017 save->attrptr[i][2] = save->current[i][2];
1020 save->attrptr[i][1] = save->current[i][1];
1023 save->attrptr[i][0] = save->current[i][0];
1026 unreachable("Unexpected vertex attribute size");
1033 * Called when we increase the size of a vertex attribute. For example,
1034 * if we've seen one or more glTexCoord2f() calls and now we get a
1035 * glTexCoord3f() call.
1036 * Flush existing data, set new attrib size, replay copied vertices.
1039 upgrade_vertex(struct gl_context *ctx, GLuint attr, GLuint newsz)
1041 struct vbo_save_context *save = &vbo_context(ctx)->save;
1046 /* Store the current run of vertices, and emit a GL_END. Emit a
1047 * BEGIN in the new buffer.
1049 if (save->vert_count)
1052 assert(save->copied.nr == 0);
1054 /* Do a COPY_TO_CURRENT to ensure back-copying works for the case
1055 * when the attribute already exists in the vertex and is having
1056 * its size increased.
1058 copy_to_current(ctx);
1062 oldsz = save->attrsz[attr];
1063 save->attrsz[attr] = newsz;
1064 save->enabled |= BITFIELD64_BIT(attr);
1066 save->vertex_size += newsz - oldsz;
1067 save->vert_count = 0;
1069 /* Recalculate all the attrptr[] values:
1072 for (i = 0; i < VBO_ATTRIB_MAX; i++) {
1073 if (save->attrsz[i]) {
1074 save->attrptr[i] = tmp;
1075 tmp += save->attrsz[i];
1078 save->attrptr[i] = NULL; /* will not be dereferenced. */
1082 /* Copy from current to repopulate the vertex with correct values.
1084 copy_from_current(ctx);
1086 /* Replay stored vertices to translate them to new format here.
1088 * If there are copied vertices and the new (upgraded) attribute
1089 * has not been defined before, this list is somewhat degenerate,
1090 * and will need fixup at runtime.
1092 if (save->copied.nr) {
1093 const fi_type *data = save->copied.buffer;
1094 fi_type *dest = save->vertex_store->buffer_in_ram;
1096 /* Need to note this and fix up at runtime (or loopback):
1098 if (attr != VBO_ATTRIB_POS && save->currentsz[attr][0] == 0) {
1100 save->dangling_attr_ref = GL_TRUE;
1103 for (i = 0; i < save->copied.nr; i++) {
1104 GLbitfield64 enabled = save->enabled;
1106 const int j = u_bit_scan64(&enabled);
1107 assert(save->attrsz[j]);
1110 COPY_CLEAN_4V_TYPE_AS_UNION(dest, oldsz, data,
1116 COPY_SZ_4V(dest, newsz, save->current[attr]);
1121 GLint sz = save->attrsz[j];
1122 COPY_SZ_4V(dest, sz, data);
1129 save->vert_count += save->copied.nr;
1130 save->vertex_store->used += save->vertex_size * save->copied.nr;
1136 * This is called when the size of a vertex attribute changes.
1137 * For example, after seeing one or more glTexCoord2f() calls we
1138 * get a glTexCoord4f() or glTexCoord1f() call.
1141 fixup_vertex(struct gl_context *ctx, GLuint attr,
1142 GLuint sz, GLenum newType)
1144 struct vbo_save_context *save = &vbo_context(ctx)->save;
1146 if (sz > save->attrsz[attr] ||
1147 newType != save->attrtype[attr]) {
1148 /* New size is larger. Need to flush existing vertices and get
1149 * an enlarged vertex format.
1151 upgrade_vertex(ctx, attr, sz);
1153 else if (sz < save->active_sz[attr]) {
1155 const fi_type *id = vbo_get_default_vals_as_union(save->attrtype[attr]);
1157 /* New size is equal or smaller - just need to fill in some
1160 for (i = sz; i <= save->attrsz[attr]; i++)
1161 save->attrptr[attr][i - 1] = id[i - 1];
1164 save->active_sz[attr] = sz;
1169 * Reset the current size of all vertex attributes to the default
1170 * value of 0. This signals that we haven't yet seen any per-vertex
1171 * commands such as glNormal3f() or glTexCoord2f().
1174 reset_vertex(struct gl_context *ctx)
1176 struct vbo_save_context *save = &vbo_context(ctx)->save;
1178 while (save->enabled) {
1179 const int i = u_bit_scan64(&save->enabled);
1180 assert(save->attrsz[i]);
1181 save->attrsz[i] = 0;
1182 save->active_sz[i] = 0;
1185 save->vertex_size = 0;
1190 * If index=0, does glVertexAttrib*() alias glVertex() to emit a vertex?
1191 * It depends on a few things, including whether we're inside or outside
1195 is_vertex_position(const struct gl_context *ctx, GLuint index)
1197 return (index == 0 &&
1198 _mesa_attr_zero_aliases_vertex(ctx) &&
1199 _mesa_inside_dlist_begin_end(ctx));
1204 #define ERROR(err) _mesa_compile_error(ctx, err, __func__);
1207 /* Only one size for each attribute may be active at once. Eg. if
1208 * Color3f is installed/active, then Color4f may not be, even if the
1209 * vertex actually contains 4 color coordinates. This is because the
1210 * 3f version won't otherwise set color[3] to 1.0 -- this is the job
1211 * of the chooser function when switching between Color4f and Color3f.
1213 #define ATTR_UNION(A, N, T, C, V0, V1, V2, V3) \
1215 struct vbo_save_context *save = &vbo_context(ctx)->save; \
1216 int sz = (sizeof(C) / sizeof(GLfloat)); \
1218 if (save->active_sz[A] != N) \
1219 fixup_vertex(ctx, A, N * sz, T); \
1222 C *dest = (C *)save->attrptr[A]; \
1223 if (N>0) dest[0] = V0; \
1224 if (N>1) dest[1] = V1; \
1225 if (N>2) dest[2] = V2; \
1226 if (N>3) dest[3] = V3; \
1227 save->attrtype[A] = T; \
1232 uint32_t max_vert = save->vertex_size ? \
1233 save->vertex_store->buffer_in_ram_size / (sizeof(float) * save->vertex_size) : 0; \
1234 fi_type *buffer_ptr = save->vertex_store->buffer_in_ram + save->vertex_store->used; \
1236 for (i = 0; i < save->vertex_size; i++) \
1237 buffer_ptr[i] = save->vertex[i]; \
1239 save->vertex_store->used += save->vertex_size; \
1240 if (++save->vert_count >= max_vert) \
1241 realloc_storage(ctx, -1, max_vert * 2); \
1245 #define TAG(x) _save_##x
1247 #include "vbo_attrib_tmp.h"
1251 #define MAT( ATTR, N, face, params ) \
1253 if (face != GL_BACK) \
1254 MAT_ATTR( ATTR, N, params ); /* front */ \
1255 if (face != GL_FRONT) \
1256 MAT_ATTR( ATTR + 1, N, params ); /* back */ \
1261 * Save a glMaterial call found between glBegin/End.
1262 * glMaterial calls outside Begin/End are handled in dlist.c.
1264 static void GLAPIENTRY
1265 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params)
1267 GET_CURRENT_CONTEXT(ctx);
1269 if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
1270 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(face)");
1276 MAT(VBO_ATTRIB_MAT_FRONT_EMISSION, 4, face, params);
1279 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1282 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1285 MAT(VBO_ATTRIB_MAT_FRONT_SPECULAR, 4, face, params);
1288 if (*params < 0 || *params > ctx->Const.MaxShininess) {
1289 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glMaterial(shininess)");
1292 MAT(VBO_ATTRIB_MAT_FRONT_SHININESS, 1, face, params);
1295 case GL_COLOR_INDEXES:
1296 MAT(VBO_ATTRIB_MAT_FRONT_INDEXES, 3, face, params);
1298 case GL_AMBIENT_AND_DIFFUSE:
1299 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1300 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1303 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(pname)");
1309 /* Cope with EvalCoord/CallList called within a begin/end object:
1310 * -- Flush current buffer
1311 * -- Fallback to opcodes for the rest of the begin/end object.
1314 dlist_fallback(struct gl_context *ctx)
1316 struct vbo_save_context *save = &vbo_context(ctx)->save;
1318 if (save->vert_count || save->prim_store->used) {
1319 if (save->prim_store->used > 0) {
1320 /* Close off in-progress primitive. */
1321 GLint i = save->prim_store->used - 1;
1322 save->prim_store->prims[i].count = save->vert_count - save->prim_store->prims[i].start;
1325 /* Need to replay this display list with loopback,
1326 * unfortunately, otherwise this primitive won't be handled
1329 save->dangling_attr_ref = GL_TRUE;
1331 compile_vertex_list(ctx);
1334 copy_to_current(ctx);
1336 if (save->out_of_memory) {
1337 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
1340 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1342 ctx->Driver.SaveNeedFlush = GL_FALSE;
1346 static void GLAPIENTRY
1347 _save_EvalCoord1f(GLfloat u)
1349 GET_CURRENT_CONTEXT(ctx);
1350 dlist_fallback(ctx);
1351 CALL_EvalCoord1f(ctx->Save, (u));
1354 static void GLAPIENTRY
1355 _save_EvalCoord1fv(const GLfloat * v)
1357 GET_CURRENT_CONTEXT(ctx);
1358 dlist_fallback(ctx);
1359 CALL_EvalCoord1fv(ctx->Save, (v));
1362 static void GLAPIENTRY
1363 _save_EvalCoord2f(GLfloat u, GLfloat v)
1365 GET_CURRENT_CONTEXT(ctx);
1366 dlist_fallback(ctx);
1367 CALL_EvalCoord2f(ctx->Save, (u, v));
1370 static void GLAPIENTRY
1371 _save_EvalCoord2fv(const GLfloat * v)
1373 GET_CURRENT_CONTEXT(ctx);
1374 dlist_fallback(ctx);
1375 CALL_EvalCoord2fv(ctx->Save, (v));
1378 static void GLAPIENTRY
1379 _save_EvalPoint1(GLint i)
1381 GET_CURRENT_CONTEXT(ctx);
1382 dlist_fallback(ctx);
1383 CALL_EvalPoint1(ctx->Save, (i));
1386 static void GLAPIENTRY
1387 _save_EvalPoint2(GLint i, GLint j)
1389 GET_CURRENT_CONTEXT(ctx);
1390 dlist_fallback(ctx);
1391 CALL_EvalPoint2(ctx->Save, (i, j));
1394 static void GLAPIENTRY
1395 _save_CallList(GLuint l)
1397 GET_CURRENT_CONTEXT(ctx);
1398 dlist_fallback(ctx);
1399 CALL_CallList(ctx->Save, (l));
1402 static void GLAPIENTRY
1403 _save_CallLists(GLsizei n, GLenum type, const GLvoid * v)
1405 GET_CURRENT_CONTEXT(ctx);
1406 dlist_fallback(ctx);
1407 CALL_CallLists(ctx->Save, (n, type, v));
1413 * Called when a glBegin is getting compiled into a display list.
1414 * Updating of ctx->Driver.CurrentSavePrimitive is already taken care of.
1417 vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode,
1418 bool no_current_update)
1420 struct vbo_save_context *save = &vbo_context(ctx)->save;
1421 const GLuint i = save->prim_store->used++;
1423 ctx->Driver.CurrentSavePrimitive = mode;
1425 assert(i < save->prim_store->size);
1426 save->prim_store->prims[i].mode = mode & VBO_SAVE_PRIM_MODE_MASK;
1427 save->prim_store->prims[i].begin = 1;
1428 save->prim_store->prims[i].end = 0;
1429 save->prim_store->prims[i].start = save->vert_count;
1430 save->prim_store->prims[i].count = 0;
1432 save->no_current_update = no_current_update;
1434 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
1436 /* We need to call vbo_save_SaveFlushVertices() if there's state change */
1437 ctx->Driver.SaveNeedFlush = GL_TRUE;
1441 static void GLAPIENTRY
1444 GET_CURRENT_CONTEXT(ctx);
1445 struct vbo_save_context *save = &vbo_context(ctx)->save;
1446 const GLint i = save->prim_store->used - 1;
1448 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1449 save->prim_store->prims[i].end = 1;
1450 save->prim_store->prims[i].count = (save->vert_count - save->prim_store->prims[i].start);
1452 if (i == (GLint) save->prim_store->size - 1) {
1453 compile_vertex_list(ctx);
1454 assert(save->copied.nr == 0);
1457 /* Swap out this vertex format while outside begin/end. Any color,
1458 * etc. received between here and the next begin will be compiled
1461 if (save->out_of_memory) {
1462 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
1465 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1470 static void GLAPIENTRY
1471 _save_Begin(GLenum mode)
1473 GET_CURRENT_CONTEXT(ctx);
1475 _mesa_compile_error(ctx, GL_INVALID_OPERATION, "Recursive glBegin");
1479 static void GLAPIENTRY
1480 _save_PrimitiveRestartNV(void)
1482 GET_CURRENT_CONTEXT(ctx);
1483 struct vbo_save_context *save = &vbo_context(ctx)->save;
1485 if (save->prim_store->used == 0) {
1486 /* We're not inside a glBegin/End pair, so calling glPrimitiverRestartNV
1489 _mesa_compile_error(ctx, GL_INVALID_OPERATION,
1490 "glPrimitiveRestartNV called outside glBegin/End");
1492 /* get current primitive mode */
1493 GLenum curPrim = save->prim_store->prims[save->prim_store->used - 1].mode;
1494 bool no_current_update = save->no_current_update;
1496 /* restart primitive */
1497 CALL_End(ctx->CurrentServerDispatch, ());
1498 vbo_save_NotifyBegin(ctx, curPrim, no_current_update);
1503 /* Unlike the functions above, these are to be hooked into the vtxfmt
1504 * maintained in ctx->ListState, active when the list is known or
1505 * suspected to be outside any begin/end primitive.
1506 * Note: OBE = Outside Begin/End
1508 static void GLAPIENTRY
1509 _save_OBE_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
1511 GET_CURRENT_CONTEXT(ctx);
1512 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1514 vbo_save_NotifyBegin(ctx, GL_QUADS, false);
1515 CALL_Vertex2f(dispatch, (x1, y1));
1516 CALL_Vertex2f(dispatch, (x2, y1));
1517 CALL_Vertex2f(dispatch, (x2, y2));
1518 CALL_Vertex2f(dispatch, (x1, y2));
1519 CALL_End(dispatch, ());
1523 static void GLAPIENTRY
1524 _save_OBE_Rectd(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2)
1526 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1529 static void GLAPIENTRY
1530 _save_OBE_Rectdv(const GLdouble *v1, const GLdouble *v2)
1532 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1535 static void GLAPIENTRY
1536 _save_OBE_Rectfv(const GLfloat *v1, const GLfloat *v2)
1538 _save_OBE_Rectf(v1[0], v1[1], v2[0], v2[1]);
1541 static void GLAPIENTRY
1542 _save_OBE_Recti(GLint x1, GLint y1, GLint x2, GLint y2)
1544 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1547 static void GLAPIENTRY
1548 _save_OBE_Rectiv(const GLint *v1, const GLint *v2)
1550 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1553 static void GLAPIENTRY
1554 _save_OBE_Rects(GLshort x1, GLshort y1, GLshort x2, GLshort y2)
1556 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1559 static void GLAPIENTRY
1560 _save_OBE_Rectsv(const GLshort *v1, const GLshort *v2)
1562 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1566 _ensure_draws_fits_in_storage(struct gl_context *ctx, int primcount, int vertcount)
1568 struct vbo_save_context *save = &vbo_context(ctx)->save;
1569 uint32_t max_vert = save->vertex_size ?
1570 save->vertex_store->buffer_in_ram_size / (sizeof(float) * save->vertex_size) : 0;
1572 bool realloc_prim = save->prim_store->used + primcount > save->prim_store->size;
1573 bool realloc_vert = save->vertex_size && (save->vert_count + vertcount >= max_vert);
1575 if (realloc_prim || realloc_vert)
1576 realloc_storage(ctx, realloc_prim ? primcount : -1, realloc_vert ? vertcount : -1);
1580 static void GLAPIENTRY
1581 _save_OBE_DrawArrays(GLenum mode, GLint start, GLsizei count)
1583 GET_CURRENT_CONTEXT(ctx);
1584 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1585 struct vbo_save_context *save = &vbo_context(ctx)->save;
1588 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1589 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)");
1593 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawArrays(count<0)");
1597 if (save->out_of_memory)
1600 _ensure_draws_fits_in_storage(ctx, 1, count);
1602 /* Make sure to process any VBO binding changes */
1603 _mesa_update_state(ctx);
1605 _mesa_vao_map_arrays(ctx, vao, GL_MAP_READ_BIT);
1607 vbo_save_NotifyBegin(ctx, mode, true);
1609 for (i = 0; i < count; i++)
1610 _mesa_array_element(ctx, start + i);
1611 CALL_End(ctx->CurrentServerDispatch, ());
1613 _mesa_vao_unmap_arrays(ctx, vao);
1617 static void GLAPIENTRY
1618 _save_OBE_MultiDrawArrays(GLenum mode, const GLint *first,
1619 const GLsizei *count, GLsizei primcount)
1621 GET_CURRENT_CONTEXT(ctx);
1624 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1625 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMultiDrawArrays(mode)");
1629 if (primcount < 0) {
1630 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1631 "glMultiDrawArrays(primcount<0)");
1635 unsigned vertcount = 0;
1636 for (i = 0; i < primcount; i++) {
1638 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1639 "glMultiDrawArrays(count[i]<0)");
1642 vertcount += count[i];
1645 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1647 for (i = 0; i < primcount; i++) {
1649 _save_OBE_DrawArrays(mode, first[i], count[i]);
1656 array_element(struct gl_context *ctx,
1657 GLint basevertex, GLuint elt, unsigned index_size_shift)
1659 /* Section 10.3.5 Primitive Restart:
1661 * When one of the *BaseVertex drawing commands specified in section 10.5
1662 * is used, the primitive restart comparison occurs before the basevertex
1663 * offset is added to the array index.
1665 /* If PrimitiveRestart is enabled and the index is the RestartIndex
1666 * then we call PrimitiveRestartNV and return.
1668 if (ctx->Array._PrimitiveRestart[index_size_shift] &&
1669 elt == ctx->Array._RestartIndex[index_size_shift]) {
1670 CALL_PrimitiveRestartNV(ctx->CurrentServerDispatch, ());
1674 _mesa_array_element(ctx, basevertex + elt);
1678 /* Could do better by copying the arrays and element list intact and
1679 * then emitting an indexed prim at runtime.
1681 static void GLAPIENTRY
1682 _save_OBE_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
1683 const GLvoid * indices, GLint basevertex)
1685 GET_CURRENT_CONTEXT(ctx);
1686 struct vbo_save_context *save = &vbo_context(ctx)->save;
1687 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1688 struct gl_buffer_object *indexbuf = vao->IndexBufferObj;
1691 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1692 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawElements(mode)");
1696 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1699 if (type != GL_UNSIGNED_BYTE &&
1700 type != GL_UNSIGNED_SHORT &&
1701 type != GL_UNSIGNED_INT) {
1702 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1706 if (save->out_of_memory)
1709 _ensure_draws_fits_in_storage(ctx, 1, count);
1711 /* Make sure to process any VBO binding changes */
1712 _mesa_update_state(ctx);
1714 _mesa_vao_map(ctx, vao, GL_MAP_READ_BIT);
1718 ADD_POINTERS(indexbuf->Mappings[MAP_INTERNAL].Pointer, indices);
1720 vbo_save_NotifyBegin(ctx, mode, true);
1723 case GL_UNSIGNED_BYTE:
1724 for (i = 0; i < count; i++)
1725 array_element(ctx, basevertex, ((GLubyte *) indices)[i], 0);
1727 case GL_UNSIGNED_SHORT:
1728 for (i = 0; i < count; i++)
1729 array_element(ctx, basevertex, ((GLushort *) indices)[i], 1);
1731 case GL_UNSIGNED_INT:
1732 for (i = 0; i < count; i++)
1733 array_element(ctx, basevertex, ((GLuint *) indices)[i], 2);
1736 _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)");
1740 CALL_End(ctx->CurrentServerDispatch, ());
1742 _mesa_vao_unmap(ctx, vao);
1745 static void GLAPIENTRY
1746 _save_OBE_DrawElements(GLenum mode, GLsizei count, GLenum type,
1747 const GLvoid * indices)
1749 _save_OBE_DrawElementsBaseVertex(mode, count, type, indices, 0);
1753 static void GLAPIENTRY
1754 _save_OBE_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
1755 GLsizei count, GLenum type,
1756 const GLvoid * indices)
1758 GET_CURRENT_CONTEXT(ctx);
1759 struct vbo_save_context *save = &vbo_context(ctx)->save;
1761 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1762 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)");
1766 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1767 "glDrawRangeElements(count<0)");
1770 if (type != GL_UNSIGNED_BYTE &&
1771 type != GL_UNSIGNED_SHORT &&
1772 type != GL_UNSIGNED_INT) {
1773 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(type)");
1777 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1778 "glDrawRangeElements(end < start)");
1782 if (save->out_of_memory)
1785 _save_OBE_DrawElements(mode, count, type, indices);
1789 static void GLAPIENTRY
1790 _save_OBE_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type,
1791 const GLvoid * const *indices, GLsizei primcount)
1793 GET_CURRENT_CONTEXT(ctx);
1794 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1798 for (i = 0; i < primcount; i++) {
1799 vertcount += count[i];
1801 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1803 for (i = 0; i < primcount; i++) {
1805 CALL_DrawElements(dispatch, (mode, count[i], type, indices[i]));
1811 static void GLAPIENTRY
1812 _save_OBE_MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count,
1814 const GLvoid * const *indices,
1816 const GLint *basevertex)
1818 GET_CURRENT_CONTEXT(ctx);
1819 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1823 for (i = 0; i < primcount; i++) {
1824 vertcount += count[i];
1826 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1828 for (i = 0; i < primcount; i++) {
1830 CALL_DrawElementsBaseVertex(dispatch, (mode, count[i], type,
1839 vtxfmt_init(struct gl_context *ctx)
1841 struct vbo_save_context *save = &vbo_context(ctx)->save;
1842 GLvertexformat *vfmt = &save->vtxfmt;
1844 #define NAME_AE(x) _ae_##x
1845 #define NAME_CALLLIST(x) _save_##x
1846 #define NAME(x) _save_##x
1847 #define NAME_ES(x) _save_##x##ARB
1849 #include "vbo_init_tmp.h"
1854 * Initialize the dispatch table with the VBO functions for display
1858 vbo_initialize_save_dispatch(const struct gl_context *ctx,
1859 struct _glapi_table *exec)
1861 SET_DrawArrays(exec, _save_OBE_DrawArrays);
1862 SET_MultiDrawArrays(exec, _save_OBE_MultiDrawArrays);
1863 SET_DrawElements(exec, _save_OBE_DrawElements);
1864 SET_DrawElementsBaseVertex(exec, _save_OBE_DrawElementsBaseVertex);
1865 SET_DrawRangeElements(exec, _save_OBE_DrawRangeElements);
1866 SET_MultiDrawElementsEXT(exec, _save_OBE_MultiDrawElements);
1867 SET_MultiDrawElementsBaseVertex(exec, _save_OBE_MultiDrawElementsBaseVertex);
1868 SET_Rectf(exec, _save_OBE_Rectf);
1869 SET_Rectd(exec, _save_OBE_Rectd);
1870 SET_Rectdv(exec, _save_OBE_Rectdv);
1871 SET_Rectfv(exec, _save_OBE_Rectfv);
1872 SET_Recti(exec, _save_OBE_Recti);
1873 SET_Rectiv(exec, _save_OBE_Rectiv);
1874 SET_Rects(exec, _save_OBE_Rects);
1875 SET_Rectsv(exec, _save_OBE_Rectsv);
1877 /* Note: other glDraw functins aren't compiled into display lists */
1883 vbo_save_SaveFlushVertices(struct gl_context *ctx)
1885 struct vbo_save_context *save = &vbo_context(ctx)->save;
1887 /* Noop when we are actually active:
1889 if (ctx->Driver.CurrentSavePrimitive <= PRIM_MAX)
1892 if (save->vert_count || save->prim_store->used)
1893 compile_vertex_list(ctx);
1895 copy_to_current(ctx);
1897 ctx->Driver.SaveNeedFlush = GL_FALSE;
1902 * Called from glNewList when we're starting to compile a display list.
1905 vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode)
1907 struct vbo_save_context *save = &vbo_context(ctx)->save;
1912 if (!save->prim_store)
1913 save->prim_store = realloc_prim_store(NULL, 8);
1915 if (!save->vertex_store)
1916 save->vertex_store = realloc_vertex_store(NULL, save->vertex_size, 8);
1919 ctx->Driver.SaveNeedFlush = GL_FALSE;
1924 * Called from glEndList when we're finished compiling a display list.
1927 vbo_save_EndList(struct gl_context *ctx)
1929 struct vbo_save_context *save = &vbo_context(ctx)->save;
1931 /* EndList called inside a (saved) Begin/End pair?
1933 if (_mesa_inside_dlist_begin_end(ctx)) {
1934 if (save->prim_store->used > 0) {
1935 GLint i = save->prim_store->used - 1;
1936 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1937 save->prim_store->prims[i].end = 0;
1938 save->prim_store->prims[i].count = save->vert_count - save->prim_store->prims[i].start;
1941 /* Make sure this vertex list gets replayed by the "loopback"
1944 save->dangling_attr_ref = GL_TRUE;
1945 vbo_save_SaveFlushVertices(ctx);
1947 /* Swap out this vertex format while outside begin/end. Any color,
1948 * etc. received between here and the next begin will be compiled
1951 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1954 assert(save->vertex_size == 0);
1958 * Called during context creation/init.
1961 current_init(struct gl_context *ctx)
1963 struct vbo_save_context *save = &vbo_context(ctx)->save;
1966 for (i = VBO_ATTRIB_POS; i <= VBO_ATTRIB_EDGEFLAG; i++) {
1967 const GLuint j = i - VBO_ATTRIB_POS;
1968 assert(j < VERT_ATTRIB_MAX);
1969 save->currentsz[i] = &ctx->ListState.ActiveAttribSize[j];
1970 save->current[i] = (fi_type *) ctx->ListState.CurrentAttrib[j];
1973 for (i = VBO_ATTRIB_FIRST_MATERIAL; i <= VBO_ATTRIB_LAST_MATERIAL; i++) {
1974 const GLuint j = i - VBO_ATTRIB_FIRST_MATERIAL;
1975 assert(j < MAT_ATTRIB_MAX);
1976 save->currentsz[i] = &ctx->ListState.ActiveMaterialSize[j];
1977 save->current[i] = (fi_type *) ctx->ListState.CurrentMaterial[j];
1983 * Initialize the display list compiler. Called during context creation.
1986 vbo_save_api_init(struct vbo_save_context *save)
1988 struct gl_context *ctx = gl_context_from_vbo_save(save);