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 * NOTE: Old 'parity' issue is gone, but copying can still be
112 * wrong-footed on replay.
115 copy_vertices(struct gl_context *ctx,
116 const struct vbo_save_vertex_list *node,
117 const fi_type * src_buffer)
119 struct vbo_save_context *save = &vbo_context(ctx)->save;
120 struct _mesa_prim *prim = &node->cold->prims[node->cold->prim_count - 1];
121 GLuint sz = save->vertex_size;
122 const fi_type *src = src_buffer + prim->start * sz;
123 fi_type *dst = save->copied.buffer;
128 return vbo_copy_vertices(ctx, prim->mode, prim->start, &prim->count,
129 prim->begin, sz, true, dst, src);
133 static struct vbo_save_vertex_store *
134 alloc_vertex_store(struct gl_context *ctx, int vertex_count)
136 struct vbo_save_context *save = &vbo_context(ctx)->save;
137 struct vbo_save_vertex_store *vertex_store =
138 CALLOC_STRUCT(vbo_save_vertex_store);
140 int size = MAX2(vertex_count * save->vertex_size, VBO_SAVE_BUFFER_SIZE);
142 /* obj->Name needs to be non-zero, but won't ever be examined more
143 * closely than that. In particular these buffers won't be entered
144 * into the hash and can never be confused with ones visible to the
145 * user. Perhaps there could be a special number for internal
148 vertex_store->bufferobj = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID);
149 if (vertex_store->bufferobj) {
150 vertex_store->buffer_in_ram_size = size * sizeof(GLfloat);
151 vertex_store->buffer_in_ram = malloc(vertex_store->buffer_in_ram_size);
152 save->out_of_memory = vertex_store->buffer_in_ram == NULL;
153 save->out_of_memory =
154 !ctx->Driver.BufferData(ctx,
156 size * sizeof(GLfloat),
157 NULL, GL_STATIC_DRAW_ARB,
159 vertex_store->bufferobj);
162 save->out_of_memory = GL_TRUE;
165 if (save->out_of_memory) {
166 _mesa_error(ctx, GL_OUT_OF_MEMORY, "internal VBO allocation");
167 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
170 vertex_store->used = 0;
177 free_vertex_store(struct gl_context *ctx,
178 struct vbo_save_vertex_store *vertex_store)
180 free(vertex_store->buffer_in_ram);
182 if (vertex_store->bufferobj) {
183 _mesa_reference_buffer_object(ctx, &vertex_store->bufferobj, NULL);
190 static struct vbo_save_primitive_store *
191 alloc_prim_store(int prim_count)
193 struct vbo_save_primitive_store *store =
194 CALLOC_STRUCT(vbo_save_primitive_store);
195 store->size = MAX2(prim_count, VBO_SAVE_PRIM_SIZE);
196 store->prims = calloc(store->size, sizeof(struct _mesa_prim));
204 reset_counters(struct gl_context *ctx)
206 struct vbo_save_context *save = &vbo_context(ctx)->save;
208 save->prims = save->prim_store->prims + save->prim_store->used;
209 save->buffer_map = save->vertex_store->buffer_in_ram + save->vertex_store->used;
211 assert(save->buffer_map == save->buffer_ptr);
213 if (save->vertex_size)
214 save->max_vert = (save->vertex_store->bufferobj->Size / sizeof(float) - save->vertex_store->used) /
219 save->vert_count = 0;
220 save->prim_count = 0;
221 save->prim_max = save->prim_store->size - save->prim_store->used;
222 save->dangling_attr_ref = GL_FALSE;
226 * For a list of prims, try merging prims that can just be extensions of the
230 merge_prims(struct gl_context *ctx, struct _mesa_prim *prim_list,
234 struct _mesa_prim *prev_prim = prim_list;
236 for (i = 1; i < *prim_count; i++) {
237 struct _mesa_prim *this_prim = prim_list + i;
239 vbo_try_prim_conversion(&this_prim->mode, &this_prim->count);
241 if (vbo_merge_draws(ctx, true,
242 prev_prim->mode, this_prim->mode,
243 prev_prim->start, this_prim->start,
244 &prev_prim->count, this_prim->count,
245 prev_prim->basevertex, this_prim->basevertex,
247 this_prim->begin, this_prim->end)) {
248 /* We've found a prim that just extend the previous one. Tack it
249 * onto the previous one, and let this primitive struct get dropped.
254 /* If any previous primitives have been dropped, then we need to copy
255 * this later one into the next available slot.
258 if (prev_prim != this_prim)
259 *prev_prim = *this_prim;
262 *prim_count = prev_prim - prim_list + 1;
267 * Convert GL_LINE_LOOP primitive into GL_LINE_STRIP so that drivers
268 * don't have to worry about handling the _mesa_prim::begin/end flags.
269 * See https://bugs.freedesktop.org/show_bug.cgi?id=81174
272 convert_line_loop_to_strip(struct vbo_save_context *save,
273 struct vbo_save_vertex_list *node)
275 struct _mesa_prim *prim = &node->cold->prims[node->cold->prim_count - 1];
277 assert(prim->mode == GL_LINE_LOOP);
280 /* Copy the 0th vertex to end of the buffer and extend the
281 * vertex count by one to finish the line loop.
283 const GLuint sz = save->vertex_size;
285 const fi_type *src = save->buffer_map + prim->start * sz;
287 fi_type *dst = save->buffer_map + (prim->start + prim->count) * sz;
289 memcpy(dst, src, sz * sizeof(float));
292 node->cold->vertex_count++;
294 save->buffer_ptr += sz;
295 save->vertex_store->used += sz;
299 /* Drawing the second or later section of a long line loop.
300 * Skip the 0th vertex.
306 prim->mode = GL_LINE_STRIP;
310 /* Compare the present vao if it has the same setup. */
312 compare_vao(gl_vertex_processing_mode mode,
313 const struct gl_vertex_array_object *vao,
314 const struct gl_buffer_object *bo, GLintptr buffer_offset,
315 GLuint stride, GLbitfield64 vao_enabled,
316 const GLubyte size[VBO_ATTRIB_MAX],
317 const GLenum16 type[VBO_ATTRIB_MAX],
318 const GLuint offset[VBO_ATTRIB_MAX])
323 /* If the enabled arrays are not the same we are not equal. */
324 if (vao_enabled != vao->Enabled)
327 /* Check the buffer binding at 0 */
328 if (vao->BufferBinding[0].BufferObj != bo)
330 /* BufferBinding[0].Offset != buffer_offset is checked per attribute */
331 if (vao->BufferBinding[0].Stride != stride)
333 assert(vao->BufferBinding[0].InstanceDivisor == 0);
335 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space */
336 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
338 /* Now check the enabled arrays */
339 GLbitfield mask = vao_enabled;
341 const int attr = u_bit_scan(&mask);
342 const unsigned char vbo_attr = vao_to_vbo_map[attr];
343 const GLenum16 tp = type[vbo_attr];
344 const GLintptr off = offset[vbo_attr] + buffer_offset;
345 const struct gl_array_attributes *attrib = &vao->VertexAttrib[attr];
346 if (attrib->RelativeOffset + vao->BufferBinding[0].Offset != off)
348 if (attrib->Format.Type != tp)
350 if (attrib->Format.Size != size[vbo_attr])
352 assert(attrib->Format.Format == GL_RGBA);
353 assert(attrib->Format.Normalized == GL_FALSE);
354 assert(attrib->Format.Integer == vbo_attrtype_to_integer_flag(tp));
355 assert(attrib->Format.Doubles == vbo_attrtype_to_double_flag(tp));
356 assert(attrib->BufferBindingIndex == 0);
363 /* Create or reuse the vao for the vertex processing mode. */
365 update_vao(struct gl_context *ctx,
366 gl_vertex_processing_mode mode,
367 struct gl_vertex_array_object **vao,
368 struct gl_buffer_object *bo, GLintptr buffer_offset,
369 GLuint stride, GLbitfield64 vbo_enabled,
370 const GLubyte size[VBO_ATTRIB_MAX],
371 const GLenum16 type[VBO_ATTRIB_MAX],
372 const GLuint offset[VBO_ATTRIB_MAX])
374 /* Compute the bitmasks of vao_enabled arrays */
375 GLbitfield vao_enabled = _vbo_get_vao_enabled_from_vbo(mode, vbo_enabled);
378 * Check if we can possibly reuse the exisiting one.
379 * In the long term we should reset them when something changes.
381 if (compare_vao(mode, *vao, bo, buffer_offset, stride,
382 vao_enabled, size, type, offset))
385 /* The initial refcount is 1 */
386 _mesa_reference_vao(ctx, vao, NULL);
387 *vao = _mesa_new_vao(ctx, ~((GLuint)0));
390 * assert(stride <= ctx->Const.MaxVertexAttribStride);
391 * MaxVertexAttribStride is not set for drivers that does not
392 * expose GL 44 or GLES 31.
395 /* Bind the buffer object at binding point 0 */
396 _mesa_bind_vertex_buffer(ctx, *vao, 0, bo, buffer_offset, stride, false,
399 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space
400 * Note that the position/generic0 aliasing is done in the VAO.
402 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
403 /* Now set the enable arrays */
404 GLbitfield mask = vao_enabled;
406 const int vao_attr = u_bit_scan(&mask);
407 const GLubyte vbo_attr = vao_to_vbo_map[vao_attr];
408 assert(offset[vbo_attr] <= ctx->Const.MaxVertexAttribRelativeOffset);
410 _vbo_set_attrib_format(ctx, *vao, vao_attr, buffer_offset,
411 size[vbo_attr], type[vbo_attr], offset[vbo_attr]);
412 _mesa_vertex_attrib_binding(ctx, *vao, vao_attr, 0);
414 _mesa_enable_vertex_array_attribs(ctx, *vao, vao_enabled);
415 assert(vao_enabled == (*vao)->Enabled);
416 assert((vao_enabled & ~(*vao)->VertexAttribBufferMask) == 0);
418 /* Finalize and freeze the VAO */
419 _mesa_set_vao_immutable(ctx, *vao);
424 realloc_storage(struct gl_context *ctx, int prim_count, int vertex_count)
426 struct vbo_save_context *save = &vbo_context(ctx)->save;
427 if (vertex_count >= 0) {
428 /* Release old reference:
430 free_vertex_store(ctx, save->vertex_store);
431 save->vertex_store = NULL;
432 /* When we have a new vbo, we will for sure need a new vao */
433 for (gl_vertex_processing_mode vpm = 0; vpm < VP_MODE_MAX; ++vpm)
434 _mesa_reference_vao(ctx, &save->VAO[vpm], NULL);
436 /* Allocate and map new store:
438 save->vertex_store = alloc_vertex_store(ctx, vertex_count);
439 save->buffer_ptr = save->vertex_store->buffer_in_ram + save->vertex_store->used;
440 save->out_of_memory = save->buffer_ptr == NULL;
443 if (prim_count >= 0) {
444 if (--save->prim_store->refcount == 0) {
445 free(save->prim_store->prims);
446 free(save->prim_store);
448 save->prim_store = alloc_prim_store(prim_count);
453 unsigned vertex_size;
454 fi_type *vertex_attributes;
457 static uint32_t _hash_vertex_key(const void *key)
459 struct vertex_key *k = (struct vertex_key*)key;
460 unsigned sz = k->vertex_size;
462 return _mesa_hash_data(k->vertex_attributes, sz * sizeof(float));
465 static bool _compare_vertex_key(const void *key1, const void *key2)
467 struct vertex_key *k1 = (struct vertex_key*)key1;
468 struct vertex_key *k2 = (struct vertex_key*)key2;
469 /* All the compared vertices are going to be drawn with the same VAO,
470 * so we can compare the attributes. */
471 assert (k1->vertex_size == k2->vertex_size);
472 return memcmp(k1->vertex_attributes,
473 k2->vertex_attributes,
474 k1->vertex_size * sizeof(float)) == 0;
477 static void _free_entry(struct hash_entry *entry)
479 free((void*)entry->key);
482 /* Add vertex to the vertex buffer and return its index. If this vertex is a duplicate
483 * of an existing vertex, return the original index instead.
486 add_vertex(struct vbo_save_context *save, struct hash_table *hash_to_index,
487 uint32_t index, fi_type *new_buffer, uint32_t *max_index)
489 /* If vertex deduplication is disabled return the original index. */
493 fi_type *vert = save->buffer_map + save->vertex_size * index;
495 struct vertex_key *key = malloc(sizeof(struct vertex_key));
496 key->vertex_size = save->vertex_size;
497 key->vertex_attributes = vert;
499 struct hash_entry *entry = _mesa_hash_table_search(hash_to_index, key);
502 /* We found an existing vertex with the same hash, return its index. */
503 return (uintptr_t) entry->data;
505 /* This is a new vertex. Determine a new index and copy its attributes to the vertex
506 * buffer. Note that 'new_buffer' is created at each list compilation so we write vertices
507 * starting at index 0.
509 uint32_t n = _mesa_hash_table_num_entries(hash_to_index);
510 *max_index = MAX2(n, *max_index);
512 memcpy(&new_buffer[save->vertex_size * n],
514 save->vertex_size * sizeof(fi_type));
516 _mesa_hash_table_insert(hash_to_index, key, (void*)(uintptr_t)(n));
518 /* The index buffer is shared between list compilations, so add the base index to get
527 * Insert the active immediate struct onto the display list currently
531 compile_vertex_list(struct gl_context *ctx)
533 struct vbo_save_context *save = &vbo_context(ctx)->save;
534 struct vbo_save_vertex_list *node;
536 /* Allocate space for this structure in the display list currently
539 node = (struct vbo_save_vertex_list *)
540 _mesa_dlist_alloc_vertex_list(ctx, !save->dangling_attr_ref && !save->no_current_update);
545 memset(node, 0, sizeof(struct vbo_save_vertex_list));
546 node->cold = calloc(1, sizeof(*node->cold));
548 /* Make sure the pointer is aligned to the size of a pointer */
549 assert((GLintptr) node % sizeof(void *) == 0);
551 const GLsizei stride = save->vertex_size*sizeof(GLfloat);
553 node->cold->vertex_count = save->vert_count;
554 node->cold->wrap_count = save->copied.nr;
555 node->cold->prims = save->prims;
556 node->cold->ib.obj = NULL;
557 node->cold->prim_count = save->prim_count;
558 node->cold->prim_store = save->prim_store;
559 node->cold->prim_store->refcount++;
561 if (save->no_current_update) {
562 node->cold->current_data = NULL;
565 GLuint current_size = save->vertex_size - save->attrsz[0];
566 node->cold->current_data = NULL;
569 node->cold->current_data = malloc(current_size * sizeof(GLfloat));
570 if (node->cold->current_data) {
571 const char *buffer = (const char *)save->buffer_map;
572 unsigned attr_offset = save->attrsz[0] * sizeof(GLfloat);
573 unsigned vertex_offset = 0;
575 if (node->cold->vertex_count)
576 vertex_offset = (node->cold->vertex_count - 1) * stride;
578 memcpy(node->cold->current_data, buffer + vertex_offset + attr_offset,
579 current_size * sizeof(GLfloat));
581 _mesa_error(ctx, GL_OUT_OF_MEMORY, "Current value allocation");
586 assert(save->attrsz[VBO_ATTRIB_POS] != 0 || node->cold->vertex_count == 0);
588 if (save->dangling_attr_ref)
589 ctx->ListState.Current.UseLoopback = true;
591 save->vertex_store->used += save->vertex_size * node->cold->vertex_count;
592 save->prim_store->used += node->cold->prim_count;
594 /* Copy duplicated vertices
596 save->copied.nr = copy_vertices(ctx, node, save->buffer_map);
598 if (node->cold->prims[node->cold->prim_count - 1].mode == GL_LINE_LOOP) {
599 convert_line_loop_to_strip(save, node);
602 merge_prims(ctx, node->cold->prims, &node->cold->prim_count);
604 /* Create an index buffer. */
605 node->cold->min_index = node->cold->max_index = 0;
606 if (save->vert_count == 0 || save->prim_count == 0)
609 /* We won't modify node->prims, so use a const alias to avoid unintended
611 const struct _mesa_prim *original_prims = node->cold->prims;
613 int end = original_prims[node->cold->prim_count - 1].start +
614 original_prims[node->cold->prim_count - 1].count;
615 int total_vert_count = end - original_prims[0].start;
617 node->cold->min_index = node->cold->prims[0].start;
618 node->cold->max_index = end - 1;
620 /* Estimate for the worst case: all prims are line strips (the +1 is because
621 * wrap_buffers may call use but the last primitive may not be complete) */
622 int max_indices_count = MAX2(total_vert_count * 2 - (node->cold->prim_count * 2) + 1,
625 int indices_offset = 0;
626 int available = save->previous_ib ? (save->previous_ib->Size / 4 - save->ib_first_free_index) : 0;
627 if (available >= max_indices_count) {
628 indices_offset = save->ib_first_free_index;
630 int size = max_indices_count * sizeof(uint32_t);
631 uint32_t* indices = (uint32_t*) malloc(size);
632 struct _mesa_prim *merged_prims = NULL;
635 struct hash_table *vertex_to_index = NULL;
636 fi_type *temp_vertices_buffer = NULL;
638 /* The loopback replay code doesn't use the index buffer, so we can't
639 * dedup vertices in this case.
641 if (!ctx->ListState.Current.UseLoopback) {
642 vertex_to_index = _mesa_hash_table_create(NULL, _hash_vertex_key, _compare_vertex_key);
643 temp_vertices_buffer = malloc(save->vertex_store->buffer_in_ram_size);
646 uint32_t max_index = 0;
648 int last_valid_prim = -1;
649 /* Construct indices array. */
650 for (unsigned i = 0; i < node->cold->prim_count; i++) {
651 assert(original_prims[i].basevertex == 0);
652 GLubyte mode = original_prims[i].mode;
654 int vertex_count = original_prims[i].count;
659 /* Line strips may get converted to lines */
660 if (mode == GL_LINE_STRIP)
663 /* If 2 consecutive prims use the same mode => merge them. */
664 bool merge_prims = last_valid_prim >= 0 &&
665 mode == merged_prims[last_valid_prim].mode &&
666 mode != GL_LINE_LOOP && mode != GL_TRIANGLE_FAN &&
667 mode != GL_QUAD_STRIP && mode != GL_POLYGON &&
670 /* To be able to merge consecutive triangle strips we need to insert
671 * a degenerate triangle.
674 mode == GL_TRIANGLE_STRIP) {
675 /* Insert a degenerate triangle */
676 assert(merged_prims[last_valid_prim].mode == GL_TRIANGLE_STRIP);
677 unsigned tri_count = merged_prims[last_valid_prim].count - 2;
679 indices[idx] = indices[idx - 1];
680 indices[idx + 1] = add_vertex(save, vertex_to_index, original_prims[i].start,
681 temp_vertices_buffer, &max_index);
683 merged_prims[last_valid_prim].count += 2;
686 /* Add another index to preserve winding order */
687 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start,
688 temp_vertices_buffer, &max_index);
689 merged_prims[last_valid_prim].count++;
695 /* Convert line strips to lines if it'll allow if the previous
696 * prim mode is GL_LINES (so merge_prims is true) or if the next
697 * primitive mode is GL_LINES or GL_LINE_LOOP.
699 if (original_prims[i].mode == GL_LINE_STRIP &&
701 (i < node->cold->prim_count - 1 &&
702 (original_prims[i + 1].mode == GL_LINE_STRIP ||
703 original_prims[i + 1].mode == GL_LINES)))) {
704 for (unsigned j = 0; j < vertex_count; j++) {
705 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start + j,
706 temp_vertices_buffer, &max_index);
707 /* Repeat all but the first/last indices. */
708 if (j && j != vertex_count - 1) {
709 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start + j,
710 temp_vertices_buffer, &max_index);
714 /* We didn't convert to LINES, so restore the original mode */
715 mode = original_prims[i].mode;
717 for (unsigned j = 0; j < vertex_count; j++) {
718 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start + j,
719 temp_vertices_buffer, &max_index);
724 /* Update vertex count. */
725 merged_prims[last_valid_prim].count += idx - start;
727 /* Keep this primitive */
728 last_valid_prim += 1;
729 assert(last_valid_prim <= i);
730 merged_prims = realloc(merged_prims, (1 + last_valid_prim) * sizeof(struct _mesa_prim));
731 merged_prims[last_valid_prim] = original_prims[i];
732 merged_prims[last_valid_prim].start = indices_offset + start;
733 merged_prims[last_valid_prim].count = idx - start;
735 merged_prims[last_valid_prim].mode = mode;
738 assert(idx > 0 && idx <= max_indices_count);
740 unsigned merged_prim_count = last_valid_prim + 1;
741 node->cold->ib.ptr = NULL;
742 node->cold->ib.count = idx;
743 node->cold->ib.index_size_shift = (GL_UNSIGNED_INT - GL_UNSIGNED_BYTE) >> 1;
745 GLintptr old_offset = 0;
747 old_offset = save->VAO[0]->BufferBinding[0].Offset
748 + save->VAO[0]->VertexAttrib[VERT_ATTRIB_POS].RelativeOffset;
750 GLintptr buffer_offset =
751 (save->buffer_map - save->vertex_store->buffer_in_ram) * sizeof(GLfloat);
752 const GLintptr original_buffer_offset = buffer_offset;
753 assert(old_offset <= buffer_offset);
754 const GLintptr offset_diff = buffer_offset - old_offset;
755 GLuint start_offset = 0;
756 if (offset_diff > 0 && stride > 0 && offset_diff % stride == 0) {
757 /* The vertex size is an exact multiple of the buffer offset.
758 * This means that we can use zero-based vertex attribute pointers
759 * and specify the start of the primitive with the _mesa_prim::start
760 * field. This results in issuing several draw calls with identical
761 * vertex attribute information. This can result in fewer state
762 * changes in drivers. In particular, the Gallium CSO module will
763 * filter out redundant vertex buffer changes.
765 /* We cannot immediately update the primitives as some methods below
766 * still need the uncorrected start vertices
768 start_offset = offset_diff/stride;
769 assert(old_offset == buffer_offset - offset_diff);
770 buffer_offset = old_offset;
773 /* Correct the primitive starts, we can only do this here as copy_vertices
774 * and convert_line_loop_to_strip above consume the uncorrected starts.
775 * On the other hand the _vbo_loopback_vertex_list call below needs the
776 * primitives to be corrected already.
778 for (unsigned i = 0; i < node->cold->prim_count; i++) {
779 node->cold->prims[i].start += start_offset;
781 /* start_offset shifts vertices (so v[0] becomes v[start_offset]), so we have
782 * to apply this transformation to all indices and max_index.
784 for (unsigned i = 0; i < idx; i++)
785 indices[i] += start_offset;
786 max_index += start_offset;
788 if (!indices_offset) {
789 /* Allocate a new index buffer */
790 _mesa_reference_buffer_object(ctx, &save->previous_ib, NULL);
791 save->previous_ib = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID + 1);
792 bool success = ctx->Driver.BufferData(ctx,
793 GL_ELEMENT_ARRAY_BUFFER_ARB,
794 MAX2(VBO_SAVE_INDEX_SIZE, idx) * sizeof(uint32_t),
796 GL_STATIC_DRAW_ARB, GL_MAP_WRITE_BIT,
799 _mesa_reference_buffer_object(ctx, &save->previous_ib, NULL);
800 _mesa_error(ctx, GL_OUT_OF_MEMORY, "IB allocation");
804 _mesa_reference_buffer_object(ctx, &node->cold->ib.obj, save->previous_ib);
806 if (node->cold->ib.obj) {
807 ctx->Driver.BufferSubData(ctx,
808 indices_offset * sizeof(uint32_t),
809 idx * sizeof(uint32_t),
812 save->ib_first_free_index = indices_offset + idx;
814 node->cold->vertex_count = 0;
815 node->cold->prim_count = 0;
819 if (vertex_to_index) {
820 ctx->Driver.BufferSubData(ctx,
821 original_buffer_offset,
822 (max_index - start_offset + 1) * save->vertex_size * sizeof(fi_type),
823 temp_vertices_buffer,
824 save->vertex_store->bufferobj);
826 _mesa_hash_table_destroy(vertex_to_index, _free_entry);
827 free(temp_vertices_buffer);
829 ctx->Driver.BufferSubData(ctx,
830 original_buffer_offset,
831 idx * save->vertex_size * sizeof(fi_type),
832 &save->vertex_store->buffer_in_ram[original_buffer_offset / sizeof(float)],
833 save->vertex_store->bufferobj);
836 GLuint offsets[VBO_ATTRIB_MAX];
837 for (unsigned i = 0, offset = 0; i < VBO_ATTRIB_MAX; ++i) {
839 offset += save->attrsz[i] * sizeof(GLfloat);
841 /* Create a pair of VAOs for the possible VERTEX_PROCESSING_MODEs
842 * Note that this may reuse the previous one of possible.
844 for (gl_vertex_processing_mode vpm = VP_MODE_FF; vpm < VP_MODE_MAX; ++vpm) {
845 /* create or reuse the vao */
846 update_vao(ctx, vpm, &save->VAO[vpm],
847 save->vertex_store->bufferobj, buffer_offset, stride,
848 save->enabled, save->attrsz, save->attrtype, offsets);
849 /* Reference the vao in the dlist */
850 node->VAO[vpm] = NULL;
851 _mesa_reference_vao(ctx, &node->VAO[vpm], save->VAO[vpm]);
854 /* Prepare for DrawGallium */
855 memset(&node->merged.info, 0, sizeof(struct pipe_draw_info));
856 /* The other info fields will be updated in vbo_save_playback_vertex_list */
857 node->merged.info.index_size = 4;
858 node->merged.info.instance_count = 1;
859 node->merged.info.index.gl_bo = node->cold->ib.obj;
860 if (merged_prim_count == 1) {
861 node->merged.info.mode = merged_prims[0].mode;
862 node->merged.start_count.start = merged_prims[0].start;
863 node->merged.start_count.count = merged_prims[0].count;
864 node->merged.start_count.index_bias = 0;
865 node->merged.mode = NULL;
867 node->merged.mode = malloc(merged_prim_count * sizeof(unsigned char));
868 node->merged.start_counts = malloc(merged_prim_count * sizeof(struct pipe_draw_start_count_bias));
869 for (unsigned i = 0; i < merged_prim_count; i++) {
870 node->merged.start_counts[i].start = merged_prims[i].start;
871 node->merged.start_counts[i].count = merged_prims[i].count;
872 node->merged.start_counts[i].index_bias = 0;
873 node->merged.mode[i] = merged_prims[i].mode;
876 node->merged.num_draws = merged_prim_count;
877 if (node->merged.num_draws > 1) {
878 bool same_mode = true;
879 for (unsigned i = 1; i < node->merged.num_draws && same_mode; i++) {
880 same_mode = node->merged.mode[i] == node->merged.mode[0];
883 /* All primitives use the same mode, so we can simplify a bit */
884 node->merged.info.mode = node->merged.mode[0];
885 free(node->merged.mode);
886 node->merged.mode = NULL;
894 /* Deal with GL_COMPILE_AND_EXECUTE:
896 if (ctx->ExecuteFlag) {
897 struct _glapi_table *dispatch = GET_DISPATCH();
899 _glapi_set_dispatch(ctx->Exec);
901 /* Note that the range of referenced vertices must be mapped already */
902 _vbo_loopback_vertex_list(ctx, node, save->vertex_store->buffer_in_ram);
904 _glapi_set_dispatch(dispatch);
907 /* Decide whether the storage structs are full, or can be used for
908 * the next vertex lists as well.
910 if (save->vertex_store->used >
911 save->vertex_store->bufferobj->Size / sizeof(float) - 16 * (save->vertex_size + 4)) {
912 realloc_storage(ctx, -1, 0);
915 /* update buffer_ptr for next vertex */
916 save->buffer_ptr = save->vertex_store->buffer_in_ram
917 + save->vertex_store->used;
920 if (save->prim_store->used > save->prim_store->size - 6) {
921 realloc_storage(ctx, 0, -1);
924 /* Reset our structures for the next run of vertices:
931 * This is called when we fill a vertex buffer before we hit a glEnd().
933 * TODO -- If no new vertices have been stored, don't bother saving it.
936 wrap_buffers(struct gl_context *ctx)
938 struct vbo_save_context *save = &vbo_context(ctx)->save;
939 GLint i = save->prim_count - 1;
942 assert(i < (GLint) save->prim_max);
945 /* Close off in-progress primitive.
947 save->prims[i].count = (save->vert_count - save->prims[i].start);
948 mode = save->prims[i].mode;
950 /* store the copied vertices, and allocate a new list.
952 compile_vertex_list(ctx);
954 /* Restart interrupted primitive
956 save->prims[0].mode = mode;
957 save->prims[0].begin = 0;
958 save->prims[0].end = 0;
959 save->prims[0].start = 0;
960 save->prims[0].count = 0;
961 save->prim_count = 1;
966 * Called only when buffers are wrapped as the result of filling the
967 * vertex_store struct.
970 wrap_filled_vertex(struct gl_context *ctx)
972 struct vbo_save_context *save = &vbo_context(ctx)->save;
973 unsigned numComponents;
975 /* Emit a glEnd to close off the last vertex list.
979 /* Copy stored stored vertices to start of new list.
981 assert(save->max_vert - save->vert_count > save->copied.nr);
983 numComponents = save->copied.nr * save->vertex_size;
984 memcpy(save->buffer_ptr,
986 numComponents * sizeof(fi_type));
987 save->buffer_ptr += numComponents;
988 save->vert_count += save->copied.nr;
993 copy_to_current(struct gl_context *ctx)
995 struct vbo_save_context *save = &vbo_context(ctx)->save;
996 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
999 const int i = u_bit_scan64(&enabled);
1000 assert(save->attrsz[i]);
1002 if (save->attrtype[i] == GL_DOUBLE ||
1003 save->attrtype[i] == GL_UNSIGNED_INT64_ARB)
1004 memcpy(save->current[i], save->attrptr[i], save->attrsz[i] * sizeof(GLfloat));
1006 COPY_CLEAN_4V_TYPE_AS_UNION(save->current[i], save->attrsz[i],
1007 save->attrptr[i], save->attrtype[i]);
1013 copy_from_current(struct gl_context *ctx)
1015 struct vbo_save_context *save = &vbo_context(ctx)->save;
1016 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
1019 const int i = u_bit_scan64(&enabled);
1021 switch (save->attrsz[i]) {
1023 save->attrptr[i][3] = save->current[i][3];
1026 save->attrptr[i][2] = save->current[i][2];
1029 save->attrptr[i][1] = save->current[i][1];
1032 save->attrptr[i][0] = save->current[i][0];
1035 unreachable("Unexpected vertex attribute size");
1042 * Called when we increase the size of a vertex attribute. For example,
1043 * if we've seen one or more glTexCoord2f() calls and now we get a
1044 * glTexCoord3f() call.
1045 * Flush existing data, set new attrib size, replay copied vertices.
1048 upgrade_vertex(struct gl_context *ctx, GLuint attr, GLuint newsz)
1050 struct vbo_save_context *save = &vbo_context(ctx)->save;
1055 /* Store the current run of vertices, and emit a GL_END. Emit a
1056 * BEGIN in the new buffer.
1058 if (save->vert_count)
1061 assert(save->copied.nr == 0);
1063 /* Do a COPY_TO_CURRENT to ensure back-copying works for the case
1064 * when the attribute already exists in the vertex and is having
1065 * its size increased.
1067 copy_to_current(ctx);
1071 oldsz = save->attrsz[attr];
1072 save->attrsz[attr] = newsz;
1073 save->enabled |= BITFIELD64_BIT(attr);
1075 save->vertex_size += newsz - oldsz;
1076 save->max_vert = ((save->vertex_store->bufferobj->Size / sizeof(float) -
1077 save->vertex_store->used) /
1079 save->vert_count = 0;
1081 /* Recalculate all the attrptr[] values:
1084 for (i = 0; i < VBO_ATTRIB_MAX; i++) {
1085 if (save->attrsz[i]) {
1086 save->attrptr[i] = tmp;
1087 tmp += save->attrsz[i];
1090 save->attrptr[i] = NULL; /* will not be dereferenced. */
1094 /* Copy from current to repopulate the vertex with correct values.
1096 copy_from_current(ctx);
1098 /* Replay stored vertices to translate them to new format here.
1100 * If there are copied vertices and the new (upgraded) attribute
1101 * has not been defined before, this list is somewhat degenerate,
1102 * and will need fixup at runtime.
1104 if (save->copied.nr) {
1105 const fi_type *data = save->copied.buffer;
1106 fi_type *dest = save->buffer_map;
1108 /* Need to note this and fix up at runtime (or loopback):
1110 if (attr != VBO_ATTRIB_POS && save->currentsz[attr][0] == 0) {
1112 save->dangling_attr_ref = GL_TRUE;
1115 for (i = 0; i < save->copied.nr; i++) {
1116 GLbitfield64 enabled = save->enabled;
1118 const int j = u_bit_scan64(&enabled);
1119 assert(save->attrsz[j]);
1122 COPY_CLEAN_4V_TYPE_AS_UNION(dest, oldsz, data,
1128 COPY_SZ_4V(dest, newsz, save->current[attr]);
1133 GLint sz = save->attrsz[j];
1134 COPY_SZ_4V(dest, sz, data);
1141 save->buffer_ptr = dest;
1142 save->vert_count += save->copied.nr;
1148 * This is called when the size of a vertex attribute changes.
1149 * For example, after seeing one or more glTexCoord2f() calls we
1150 * get a glTexCoord4f() or glTexCoord1f() call.
1153 fixup_vertex(struct gl_context *ctx, GLuint attr,
1154 GLuint sz, GLenum newType)
1156 struct vbo_save_context *save = &vbo_context(ctx)->save;
1158 if (sz > save->attrsz[attr] ||
1159 newType != save->attrtype[attr]) {
1160 /* New size is larger. Need to flush existing vertices and get
1161 * an enlarged vertex format.
1163 upgrade_vertex(ctx, attr, sz);
1165 else if (sz < save->active_sz[attr]) {
1167 const fi_type *id = vbo_get_default_vals_as_union(save->attrtype[attr]);
1169 /* New size is equal or smaller - just need to fill in some
1172 for (i = sz; i <= save->attrsz[attr]; i++)
1173 save->attrptr[attr][i - 1] = id[i - 1];
1176 save->active_sz[attr] = sz;
1181 * Reset the current size of all vertex attributes to the default
1182 * value of 0. This signals that we haven't yet seen any per-vertex
1183 * commands such as glNormal3f() or glTexCoord2f().
1186 reset_vertex(struct gl_context *ctx)
1188 struct vbo_save_context *save = &vbo_context(ctx)->save;
1190 while (save->enabled) {
1191 const int i = u_bit_scan64(&save->enabled);
1192 assert(save->attrsz[i]);
1193 save->attrsz[i] = 0;
1194 save->active_sz[i] = 0;
1197 save->vertex_size = 0;
1202 * If index=0, does glVertexAttrib*() alias glVertex() to emit a vertex?
1203 * It depends on a few things, including whether we're inside or outside
1207 is_vertex_position(const struct gl_context *ctx, GLuint index)
1209 return (index == 0 &&
1210 _mesa_attr_zero_aliases_vertex(ctx) &&
1211 _mesa_inside_dlist_begin_end(ctx));
1216 #define ERROR(err) _mesa_compile_error(ctx, err, __func__);
1219 /* Only one size for each attribute may be active at once. Eg. if
1220 * Color3f is installed/active, then Color4f may not be, even if the
1221 * vertex actually contains 4 color coordinates. This is because the
1222 * 3f version won't otherwise set color[3] to 1.0 -- this is the job
1223 * of the chooser function when switching between Color4f and Color3f.
1225 #define ATTR_UNION(A, N, T, C, V0, V1, V2, V3) \
1227 struct vbo_save_context *save = &vbo_context(ctx)->save; \
1228 int sz = (sizeof(C) / sizeof(GLfloat)); \
1230 if (save->active_sz[A] != N) \
1231 fixup_vertex(ctx, A, N * sz, T); \
1234 C *dest = (C *)save->attrptr[A]; \
1235 if (N>0) dest[0] = V0; \
1236 if (N>1) dest[1] = V1; \
1237 if (N>2) dest[2] = V2; \
1238 if (N>3) dest[3] = V3; \
1239 save->attrtype[A] = T; \
1245 for (i = 0; i < save->vertex_size; i++) \
1246 save->buffer_ptr[i] = save->vertex[i]; \
1248 save->buffer_ptr += save->vertex_size; \
1250 if (++save->vert_count >= save->max_vert) \
1251 wrap_filled_vertex(ctx); \
1255 #define TAG(x) _save_##x
1257 #include "vbo_attrib_tmp.h"
1261 #define MAT( ATTR, N, face, params ) \
1263 if (face != GL_BACK) \
1264 MAT_ATTR( ATTR, N, params ); /* front */ \
1265 if (face != GL_FRONT) \
1266 MAT_ATTR( ATTR + 1, N, params ); /* back */ \
1271 * Save a glMaterial call found between glBegin/End.
1272 * glMaterial calls outside Begin/End are handled in dlist.c.
1274 static void GLAPIENTRY
1275 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params)
1277 GET_CURRENT_CONTEXT(ctx);
1279 if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
1280 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(face)");
1286 MAT(VBO_ATTRIB_MAT_FRONT_EMISSION, 4, face, params);
1289 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1292 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1295 MAT(VBO_ATTRIB_MAT_FRONT_SPECULAR, 4, face, params);
1298 if (*params < 0 || *params > ctx->Const.MaxShininess) {
1299 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glMaterial(shininess)");
1302 MAT(VBO_ATTRIB_MAT_FRONT_SHININESS, 1, face, params);
1305 case GL_COLOR_INDEXES:
1306 MAT(VBO_ATTRIB_MAT_FRONT_INDEXES, 3, face, params);
1308 case GL_AMBIENT_AND_DIFFUSE:
1309 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1310 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1313 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(pname)");
1319 /* Cope with EvalCoord/CallList called within a begin/end object:
1320 * -- Flush current buffer
1321 * -- Fallback to opcodes for the rest of the begin/end object.
1324 dlist_fallback(struct gl_context *ctx)
1326 struct vbo_save_context *save = &vbo_context(ctx)->save;
1328 if (save->vert_count || save->prim_count) {
1329 if (save->prim_count > 0) {
1330 /* Close off in-progress primitive. */
1331 GLint i = save->prim_count - 1;
1332 save->prims[i].count = save->vert_count - save->prims[i].start;
1335 /* Need to replay this display list with loopback,
1336 * unfortunately, otherwise this primitive won't be handled
1339 save->dangling_attr_ref = GL_TRUE;
1341 compile_vertex_list(ctx);
1344 copy_to_current(ctx);
1346 reset_counters(ctx);
1347 if (save->out_of_memory) {
1348 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1351 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1353 ctx->Driver.SaveNeedFlush = GL_FALSE;
1357 static void GLAPIENTRY
1358 _save_EvalCoord1f(GLfloat u)
1360 GET_CURRENT_CONTEXT(ctx);
1361 dlist_fallback(ctx);
1362 CALL_EvalCoord1f(ctx->Save, (u));
1365 static void GLAPIENTRY
1366 _save_EvalCoord1fv(const GLfloat * v)
1368 GET_CURRENT_CONTEXT(ctx);
1369 dlist_fallback(ctx);
1370 CALL_EvalCoord1fv(ctx->Save, (v));
1373 static void GLAPIENTRY
1374 _save_EvalCoord2f(GLfloat u, GLfloat v)
1376 GET_CURRENT_CONTEXT(ctx);
1377 dlist_fallback(ctx);
1378 CALL_EvalCoord2f(ctx->Save, (u, v));
1381 static void GLAPIENTRY
1382 _save_EvalCoord2fv(const GLfloat * v)
1384 GET_CURRENT_CONTEXT(ctx);
1385 dlist_fallback(ctx);
1386 CALL_EvalCoord2fv(ctx->Save, (v));
1389 static void GLAPIENTRY
1390 _save_EvalPoint1(GLint i)
1392 GET_CURRENT_CONTEXT(ctx);
1393 dlist_fallback(ctx);
1394 CALL_EvalPoint1(ctx->Save, (i));
1397 static void GLAPIENTRY
1398 _save_EvalPoint2(GLint i, GLint j)
1400 GET_CURRENT_CONTEXT(ctx);
1401 dlist_fallback(ctx);
1402 CALL_EvalPoint2(ctx->Save, (i, j));
1405 static void GLAPIENTRY
1406 _save_CallList(GLuint l)
1408 GET_CURRENT_CONTEXT(ctx);
1409 dlist_fallback(ctx);
1410 CALL_CallList(ctx->Save, (l));
1413 static void GLAPIENTRY
1414 _save_CallLists(GLsizei n, GLenum type, const GLvoid * v)
1416 GET_CURRENT_CONTEXT(ctx);
1417 dlist_fallback(ctx);
1418 CALL_CallLists(ctx->Save, (n, type, v));
1424 * Called when a glBegin is getting compiled into a display list.
1425 * Updating of ctx->Driver.CurrentSavePrimitive is already taken care of.
1428 vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode,
1429 bool no_current_update)
1431 struct vbo_save_context *save = &vbo_context(ctx)->save;
1432 const GLuint i = save->prim_count++;
1434 ctx->Driver.CurrentSavePrimitive = mode;
1436 assert(i < save->prim_max);
1437 save->prims[i].mode = mode & VBO_SAVE_PRIM_MODE_MASK;
1438 save->prims[i].begin = 1;
1439 save->prims[i].end = 0;
1440 save->prims[i].start = save->vert_count;
1441 save->prims[i].count = 0;
1443 save->no_current_update = no_current_update;
1445 if (save->out_of_memory) {
1446 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1449 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
1452 /* We need to call vbo_save_SaveFlushVertices() if there's state change */
1453 ctx->Driver.SaveNeedFlush = GL_TRUE;
1457 static void GLAPIENTRY
1460 GET_CURRENT_CONTEXT(ctx);
1461 struct vbo_save_context *save = &vbo_context(ctx)->save;
1462 const GLint i = save->prim_count - 1;
1464 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1465 save->prims[i].end = 1;
1466 save->prims[i].count = (save->vert_count - save->prims[i].start);
1468 if (i == (GLint) save->prim_max - 1) {
1469 compile_vertex_list(ctx);
1470 assert(save->copied.nr == 0);
1473 /* Swap out this vertex format while outside begin/end. Any color,
1474 * etc. received between here and the next begin will be compiled
1477 if (save->out_of_memory) {
1478 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1481 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1486 static void GLAPIENTRY
1487 _save_Begin(GLenum mode)
1489 GET_CURRENT_CONTEXT(ctx);
1491 _mesa_compile_error(ctx, GL_INVALID_OPERATION, "Recursive glBegin");
1495 static void GLAPIENTRY
1496 _save_PrimitiveRestartNV(void)
1498 GET_CURRENT_CONTEXT(ctx);
1499 struct vbo_save_context *save = &vbo_context(ctx)->save;
1501 if (save->prim_count == 0) {
1502 /* We're not inside a glBegin/End pair, so calling glPrimitiverRestartNV
1505 _mesa_compile_error(ctx, GL_INVALID_OPERATION,
1506 "glPrimitiveRestartNV called outside glBegin/End");
1508 /* get current primitive mode */
1509 GLenum curPrim = save->prims[save->prim_count - 1].mode;
1510 bool no_current_update = save->no_current_update;
1512 /* restart primitive */
1513 CALL_End(ctx->CurrentServerDispatch, ());
1514 vbo_save_NotifyBegin(ctx, curPrim, no_current_update);
1519 /* Unlike the functions above, these are to be hooked into the vtxfmt
1520 * maintained in ctx->ListState, active when the list is known or
1521 * suspected to be outside any begin/end primitive.
1522 * Note: OBE = Outside Begin/End
1524 static void GLAPIENTRY
1525 _save_OBE_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
1527 GET_CURRENT_CONTEXT(ctx);
1528 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1530 vbo_save_NotifyBegin(ctx, GL_QUADS, false);
1531 CALL_Vertex2f(dispatch, (x1, y1));
1532 CALL_Vertex2f(dispatch, (x2, y1));
1533 CALL_Vertex2f(dispatch, (x2, y2));
1534 CALL_Vertex2f(dispatch, (x1, y2));
1535 CALL_End(dispatch, ());
1539 static void GLAPIENTRY
1540 _save_OBE_Rectd(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2)
1542 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1545 static void GLAPIENTRY
1546 _save_OBE_Rectdv(const GLdouble *v1, const GLdouble *v2)
1548 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1551 static void GLAPIENTRY
1552 _save_OBE_Rectfv(const GLfloat *v1, const GLfloat *v2)
1554 _save_OBE_Rectf(v1[0], v1[1], v2[0], v2[1]);
1557 static void GLAPIENTRY
1558 _save_OBE_Recti(GLint x1, GLint y1, GLint x2, GLint y2)
1560 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1563 static void GLAPIENTRY
1564 _save_OBE_Rectiv(const GLint *v1, const GLint *v2)
1566 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1569 static void GLAPIENTRY
1570 _save_OBE_Rects(GLshort x1, GLshort y1, GLshort x2, GLshort y2)
1572 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1575 static void GLAPIENTRY
1576 _save_OBE_Rectsv(const GLshort *v1, const GLshort *v2)
1578 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1582 _ensure_draws_fits_in_storage(struct gl_context *ctx, int primcount, int vertcount)
1584 struct vbo_save_context *save = &vbo_context(ctx)->save;
1586 bool realloc_prim = save->prim_count + primcount > save->prim_max;
1587 bool realloc_vert = save->vertex_size && (save->vert_count + vertcount >= save->max_vert);
1589 if (realloc_prim || realloc_vert) {
1590 if (save->vert_count || save->prim_count)
1591 compile_vertex_list(ctx);
1592 realloc_storage(ctx, realloc_prim ? primcount : -1, realloc_vert ? vertcount : -1);
1593 reset_counters(ctx);
1594 assert(save->prim_max);
1599 static void GLAPIENTRY
1600 _save_OBE_DrawArrays(GLenum mode, GLint start, GLsizei count)
1602 GET_CURRENT_CONTEXT(ctx);
1603 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1604 struct vbo_save_context *save = &vbo_context(ctx)->save;
1607 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1608 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)");
1612 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawArrays(count<0)");
1616 if (save->out_of_memory)
1619 _ensure_draws_fits_in_storage(ctx, 1, count);
1621 /* Make sure to process any VBO binding changes */
1622 _mesa_update_state(ctx);
1624 _mesa_vao_map_arrays(ctx, vao, GL_MAP_READ_BIT);
1626 vbo_save_NotifyBegin(ctx, mode, true);
1628 for (i = 0; i < count; i++)
1629 _mesa_array_element(ctx, start + i);
1630 CALL_End(ctx->CurrentServerDispatch, ());
1632 _mesa_vao_unmap_arrays(ctx, vao);
1636 static void GLAPIENTRY
1637 _save_OBE_MultiDrawArrays(GLenum mode, const GLint *first,
1638 const GLsizei *count, GLsizei primcount)
1640 GET_CURRENT_CONTEXT(ctx);
1643 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1644 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMultiDrawArrays(mode)");
1648 if (primcount < 0) {
1649 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1650 "glMultiDrawArrays(primcount<0)");
1654 unsigned vertcount = 0;
1655 for (i = 0; i < primcount; i++) {
1657 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1658 "glMultiDrawArrays(count[i]<0)");
1661 vertcount += count[i];
1664 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1666 for (i = 0; i < primcount; i++) {
1668 _save_OBE_DrawArrays(mode, first[i], count[i]);
1675 array_element(struct gl_context *ctx,
1676 GLint basevertex, GLuint elt, unsigned index_size_shift)
1678 /* Section 10.3.5 Primitive Restart:
1680 * When one of the *BaseVertex drawing commands specified in section 10.5
1681 * is used, the primitive restart comparison occurs before the basevertex
1682 * offset is added to the array index.
1684 /* If PrimitiveRestart is enabled and the index is the RestartIndex
1685 * then we call PrimitiveRestartNV and return.
1687 if (ctx->Array._PrimitiveRestart[index_size_shift] &&
1688 elt == ctx->Array._RestartIndex[index_size_shift]) {
1689 CALL_PrimitiveRestartNV(ctx->CurrentServerDispatch, ());
1693 _mesa_array_element(ctx, basevertex + elt);
1697 /* Could do better by copying the arrays and element list intact and
1698 * then emitting an indexed prim at runtime.
1700 static void GLAPIENTRY
1701 _save_OBE_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
1702 const GLvoid * indices, GLint basevertex)
1704 GET_CURRENT_CONTEXT(ctx);
1705 struct vbo_save_context *save = &vbo_context(ctx)->save;
1706 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1707 struct gl_buffer_object *indexbuf = vao->IndexBufferObj;
1710 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1711 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawElements(mode)");
1715 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1718 if (type != GL_UNSIGNED_BYTE &&
1719 type != GL_UNSIGNED_SHORT &&
1720 type != GL_UNSIGNED_INT) {
1721 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1725 if (save->out_of_memory)
1728 _ensure_draws_fits_in_storage(ctx, 1, count);
1730 /* Make sure to process any VBO binding changes */
1731 _mesa_update_state(ctx);
1733 _mesa_vao_map(ctx, vao, GL_MAP_READ_BIT);
1737 ADD_POINTERS(indexbuf->Mappings[MAP_INTERNAL].Pointer, indices);
1739 vbo_save_NotifyBegin(ctx, mode, true);
1742 case GL_UNSIGNED_BYTE:
1743 for (i = 0; i < count; i++)
1744 array_element(ctx, basevertex, ((GLubyte *) indices)[i], 0);
1746 case GL_UNSIGNED_SHORT:
1747 for (i = 0; i < count; i++)
1748 array_element(ctx, basevertex, ((GLushort *) indices)[i], 1);
1750 case GL_UNSIGNED_INT:
1751 for (i = 0; i < count; i++)
1752 array_element(ctx, basevertex, ((GLuint *) indices)[i], 2);
1755 _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)");
1759 CALL_End(ctx->CurrentServerDispatch, ());
1761 _mesa_vao_unmap(ctx, vao);
1764 static void GLAPIENTRY
1765 _save_OBE_DrawElements(GLenum mode, GLsizei count, GLenum type,
1766 const GLvoid * indices)
1768 _save_OBE_DrawElementsBaseVertex(mode, count, type, indices, 0);
1772 static void GLAPIENTRY
1773 _save_OBE_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
1774 GLsizei count, GLenum type,
1775 const GLvoid * indices)
1777 GET_CURRENT_CONTEXT(ctx);
1778 struct vbo_save_context *save = &vbo_context(ctx)->save;
1780 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1781 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)");
1785 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1786 "glDrawRangeElements(count<0)");
1789 if (type != GL_UNSIGNED_BYTE &&
1790 type != GL_UNSIGNED_SHORT &&
1791 type != GL_UNSIGNED_INT) {
1792 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(type)");
1796 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1797 "glDrawRangeElements(end < start)");
1801 if (save->out_of_memory)
1804 _save_OBE_DrawElements(mode, count, type, indices);
1808 static void GLAPIENTRY
1809 _save_OBE_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type,
1810 const GLvoid * const *indices, GLsizei primcount)
1812 GET_CURRENT_CONTEXT(ctx);
1813 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1817 for (i = 0; i < primcount; i++) {
1818 vertcount += count[i];
1820 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1822 for (i = 0; i < primcount; i++) {
1824 CALL_DrawElements(dispatch, (mode, count[i], type, indices[i]));
1830 static void GLAPIENTRY
1831 _save_OBE_MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count,
1833 const GLvoid * const *indices,
1835 const GLint *basevertex)
1837 GET_CURRENT_CONTEXT(ctx);
1838 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1842 for (i = 0; i < primcount; i++) {
1843 vertcount += count[i];
1845 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1847 for (i = 0; i < primcount; i++) {
1849 CALL_DrawElementsBaseVertex(dispatch, (mode, count[i], type,
1858 vtxfmt_init(struct gl_context *ctx)
1860 struct vbo_save_context *save = &vbo_context(ctx)->save;
1861 GLvertexformat *vfmt = &save->vtxfmt;
1863 #define NAME_AE(x) _ae_##x
1864 #define NAME_CALLLIST(x) _save_##x
1865 #define NAME(x) _save_##x
1866 #define NAME_ES(x) _save_##x##ARB
1868 #include "vbo_init_tmp.h"
1873 * Initialize the dispatch table with the VBO functions for display
1877 vbo_initialize_save_dispatch(const struct gl_context *ctx,
1878 struct _glapi_table *exec)
1880 SET_DrawArrays(exec, _save_OBE_DrawArrays);
1881 SET_MultiDrawArrays(exec, _save_OBE_MultiDrawArrays);
1882 SET_DrawElements(exec, _save_OBE_DrawElements);
1883 SET_DrawElementsBaseVertex(exec, _save_OBE_DrawElementsBaseVertex);
1884 SET_DrawRangeElements(exec, _save_OBE_DrawRangeElements);
1885 SET_MultiDrawElementsEXT(exec, _save_OBE_MultiDrawElements);
1886 SET_MultiDrawElementsBaseVertex(exec, _save_OBE_MultiDrawElementsBaseVertex);
1887 SET_Rectf(exec, _save_OBE_Rectf);
1888 SET_Rectd(exec, _save_OBE_Rectd);
1889 SET_Rectdv(exec, _save_OBE_Rectdv);
1890 SET_Rectfv(exec, _save_OBE_Rectfv);
1891 SET_Recti(exec, _save_OBE_Recti);
1892 SET_Rectiv(exec, _save_OBE_Rectiv);
1893 SET_Rects(exec, _save_OBE_Rects);
1894 SET_Rectsv(exec, _save_OBE_Rectsv);
1896 /* Note: other glDraw functins aren't compiled into display lists */
1902 vbo_save_SaveFlushVertices(struct gl_context *ctx)
1904 struct vbo_save_context *save = &vbo_context(ctx)->save;
1906 /* Noop when we are actually active:
1908 if (ctx->Driver.CurrentSavePrimitive <= PRIM_MAX)
1911 if (save->vert_count || save->prim_count)
1912 compile_vertex_list(ctx);
1914 copy_to_current(ctx);
1916 reset_counters(ctx);
1917 ctx->Driver.SaveNeedFlush = GL_FALSE;
1922 * Called from glNewList when we're starting to compile a display list.
1925 vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode)
1927 struct vbo_save_context *save = &vbo_context(ctx)->save;
1932 if (!save->prim_store)
1933 save->prim_store = alloc_prim_store(0);
1935 if (!save->vertex_store)
1936 save->vertex_store = alloc_vertex_store(ctx, 0);
1938 save->buffer_ptr = save->vertex_store->buffer_in_ram + save->vertex_store->used;
1941 reset_counters(ctx);
1942 ctx->Driver.SaveNeedFlush = GL_FALSE;
1947 * Called from glEndList when we're finished compiling a display list.
1950 vbo_save_EndList(struct gl_context *ctx)
1952 struct vbo_save_context *save = &vbo_context(ctx)->save;
1954 /* EndList called inside a (saved) Begin/End pair?
1956 if (_mesa_inside_dlist_begin_end(ctx)) {
1957 if (save->prim_count > 0) {
1958 GLint i = save->prim_count - 1;
1959 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1960 save->prims[i].end = 0;
1961 save->prims[i].count = save->vert_count - save->prims[i].start;
1964 /* Make sure this vertex list gets replayed by the "loopback"
1967 save->dangling_attr_ref = GL_TRUE;
1968 vbo_save_SaveFlushVertices(ctx);
1970 /* Swap out this vertex format while outside begin/end. Any color,
1971 * etc. received between here and the next begin will be compiled
1974 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1977 assert(save->vertex_size == 0);
1981 * Called during context creation/init.
1984 current_init(struct gl_context *ctx)
1986 struct vbo_save_context *save = &vbo_context(ctx)->save;
1989 for (i = VBO_ATTRIB_POS; i <= VBO_ATTRIB_EDGEFLAG; i++) {
1990 const GLuint j = i - VBO_ATTRIB_POS;
1991 assert(j < VERT_ATTRIB_MAX);
1992 save->currentsz[i] = &ctx->ListState.ActiveAttribSize[j];
1993 save->current[i] = (fi_type *) ctx->ListState.CurrentAttrib[j];
1996 for (i = VBO_ATTRIB_FIRST_MATERIAL; i <= VBO_ATTRIB_LAST_MATERIAL; i++) {
1997 const GLuint j = i - VBO_ATTRIB_FIRST_MATERIAL;
1998 assert(j < MAT_ATTRIB_MAX);
1999 save->currentsz[i] = &ctx->ListState.ActiveMaterialSize[j];
2000 save->current[i] = (fi_type *) ctx->ListState.CurrentMaterial[j];
2006 * Initialize the display list compiler. Called during context creation.
2009 vbo_save_api_init(struct vbo_save_context *save)
2011 struct gl_context *ctx = gl_context_from_vbo_save(save);
2015 _mesa_noop_vtxfmt_init(ctx, &save->vtxfmt_noop);