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 /* Duplicate our template, increment refcounts to the storage structs:
553 GLintptr old_offset = 0;
555 old_offset = save->VAO[0]->BufferBinding[0].Offset
556 + save->VAO[0]->VertexAttrib[VERT_ATTRIB_POS].RelativeOffset;
558 const GLsizei stride = save->vertex_size*sizeof(GLfloat);
559 GLintptr buffer_offset =
560 (save->buffer_map - save->vertex_store->buffer_in_ram) * sizeof(GLfloat);
561 const GLintptr original_buffer_offset = buffer_offset;
562 assert(old_offset <= buffer_offset);
563 const GLintptr offset_diff = buffer_offset - old_offset;
564 GLuint start_offset = 0;
565 if (offset_diff > 0 && stride > 0 && offset_diff % stride == 0) {
566 /* The vertex size is an exact multiple of the buffer offset.
567 * This means that we can use zero-based vertex attribute pointers
568 * and specify the start of the primitive with the _mesa_prim::start
569 * field. This results in issuing several draw calls with identical
570 * vertex attribute information. This can result in fewer state
571 * changes in drivers. In particular, the Gallium CSO module will
572 * filter out redundant vertex buffer changes.
574 /* We cannot immediately update the primitives as some methods below
575 * still need the uncorrected start vertices
577 start_offset = offset_diff/stride;
578 assert(old_offset == buffer_offset - offset_diff);
579 buffer_offset = old_offset;
581 GLuint offsets[VBO_ATTRIB_MAX];
582 for (unsigned i = 0, offset = 0; i < VBO_ATTRIB_MAX; ++i) {
584 offset += save->attrsz[i] * sizeof(GLfloat);
586 node->cold->vertex_count = save->vert_count;
587 node->cold->wrap_count = save->copied.nr;
588 node->cold->prims = save->prims;
589 node->cold->ib.obj = NULL;
590 node->cold->prim_count = save->prim_count;
591 node->cold->prim_store = save->prim_store;
593 /* Create a pair of VAOs for the possible VERTEX_PROCESSING_MODEs
594 * Note that this may reuse the previous one of possible.
596 for (gl_vertex_processing_mode vpm = VP_MODE_FF; vpm < VP_MODE_MAX; ++vpm) {
597 /* create or reuse the vao */
598 update_vao(ctx, vpm, &save->VAO[vpm],
599 save->vertex_store->bufferobj, buffer_offset, stride,
600 save->enabled, save->attrsz, save->attrtype, offsets);
601 /* Reference the vao in the dlist */
602 node->VAO[vpm] = NULL;
603 _mesa_reference_vao(ctx, &node->VAO[vpm], save->VAO[vpm]);
606 node->cold->prim_store->refcount++;
608 if (save->no_current_update) {
609 node->cold->current_data = NULL;
612 GLuint current_size = save->vertex_size - save->attrsz[0];
613 node->cold->current_data = NULL;
616 node->cold->current_data = malloc(current_size * sizeof(GLfloat));
617 if (node->cold->current_data) {
618 const char *buffer = (const char *)save->buffer_map;
619 unsigned attr_offset = save->attrsz[0] * sizeof(GLfloat);
620 unsigned vertex_offset = 0;
622 if (node->cold->vertex_count)
623 vertex_offset = (node->cold->vertex_count - 1) * stride;
625 memcpy(node->cold->current_data, buffer + vertex_offset + attr_offset,
626 current_size * sizeof(GLfloat));
628 _mesa_error(ctx, GL_OUT_OF_MEMORY, "Current value allocation");
633 assert(save->attrsz[VBO_ATTRIB_POS] != 0 || node->cold->vertex_count == 0);
635 if (save->dangling_attr_ref)
636 ctx->ListState.Current.UseLoopback = true;
638 save->vertex_store->used += save->vertex_size * node->cold->vertex_count;
639 save->prim_store->used += node->cold->prim_count;
641 /* Copy duplicated vertices
643 save->copied.nr = copy_vertices(ctx, node, save->buffer_map);
645 if (node->cold->prims[node->cold->prim_count - 1].mode == GL_LINE_LOOP) {
646 convert_line_loop_to_strip(save, node);
649 merge_prims(ctx, node->cold->prims, &node->cold->prim_count);
651 /* Create an index buffer. */
652 node->cold->min_index = node->cold->max_index = 0;
653 if (save->vert_count == 0 || save->prim_count == 0)
656 /* We won't modify node->prims, so use a const alias to avoid unintended
658 const struct _mesa_prim *original_prims = node->cold->prims;
660 int end = original_prims[node->cold->prim_count - 1].start +
661 original_prims[node->cold->prim_count - 1].count;
662 int total_vert_count = end - original_prims[0].start;
664 node->cold->min_index = node->cold->prims[0].start;
665 node->cold->max_index = end - 1;
667 /* Estimate for the worst case: all prims are line strips (the +1 is because
668 * wrap_buffers may call use but the last primitive may not be complete) */
669 int max_indices_count = MAX2(total_vert_count * 2 - (node->cold->prim_count * 2) + 1,
672 int indices_offset = 0;
673 int available = save->previous_ib ? (save->previous_ib->Size / 4 - save->ib_first_free_index) : 0;
674 if (available >= max_indices_count) {
675 indices_offset = save->ib_first_free_index;
677 int size = max_indices_count * sizeof(uint32_t);
678 uint32_t* indices = (uint32_t*) malloc(size);
679 struct _mesa_prim *merged_prims = NULL;
682 struct hash_table *vertex_to_index = NULL;
683 fi_type *temp_vertices_buffer = NULL;
685 /* The loopback replay code doesn't use the index buffer, so we can't
686 * dedup vertices in this case.
688 if (!ctx->ListState.Current.UseLoopback) {
689 vertex_to_index = _mesa_hash_table_create(NULL, _hash_vertex_key, _compare_vertex_key);
690 temp_vertices_buffer = malloc(save->vertex_store->buffer_in_ram_size);
693 uint32_t max_index = 0;
695 int last_valid_prim = -1;
696 /* Construct indices array. */
697 for (unsigned i = 0; i < node->cold->prim_count; i++) {
698 assert(original_prims[i].basevertex == 0);
699 GLubyte mode = original_prims[i].mode;
701 int vertex_count = original_prims[i].count;
706 /* Line strips may get converted to lines */
707 if (mode == GL_LINE_STRIP)
710 /* If 2 consecutive prims use the same mode => merge them. */
711 bool merge_prims = last_valid_prim >= 0 &&
712 mode == merged_prims[last_valid_prim].mode &&
713 mode != GL_LINE_LOOP && mode != GL_TRIANGLE_FAN &&
714 mode != GL_QUAD_STRIP && mode != GL_POLYGON &&
717 /* To be able to merge consecutive triangle strips we need to insert
718 * a degenerate triangle.
721 mode == GL_TRIANGLE_STRIP) {
722 /* Insert a degenerate triangle */
723 assert(merged_prims[last_valid_prim].mode == GL_TRIANGLE_STRIP);
724 unsigned tri_count = merged_prims[last_valid_prim].count - 2;
726 indices[idx] = indices[idx - 1];
727 indices[idx + 1] = add_vertex(save, vertex_to_index, original_prims[i].start,
728 temp_vertices_buffer, &max_index);
730 merged_prims[last_valid_prim].count += 2;
733 /* Add another index to preserve winding order */
734 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start,
735 temp_vertices_buffer, &max_index);
736 merged_prims[last_valid_prim].count++;
742 /* Convert line strips to lines if it'll allow if the previous
743 * prim mode is GL_LINES (so merge_prims is true) or if the next
744 * primitive mode is GL_LINES or GL_LINE_LOOP.
746 if (original_prims[i].mode == GL_LINE_STRIP &&
748 (i < node->cold->prim_count - 1 &&
749 (original_prims[i + 1].mode == GL_LINE_STRIP ||
750 original_prims[i + 1].mode == GL_LINES)))) {
751 for (unsigned j = 0; j < vertex_count; j++) {
752 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start + j,
753 temp_vertices_buffer, &max_index);
754 /* Repeat all but the first/last indices. */
755 if (j && j != vertex_count - 1) {
756 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start + j,
757 temp_vertices_buffer, &max_index);
761 /* We didn't convert to LINES, so restore the original mode */
762 mode = original_prims[i].mode;
764 for (unsigned j = 0; j < vertex_count; j++) {
765 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start + j,
766 temp_vertices_buffer, &max_index);
771 /* Update vertex count. */
772 merged_prims[last_valid_prim].count += idx - start;
774 /* Keep this primitive */
775 last_valid_prim += 1;
776 assert(last_valid_prim <= i);
777 merged_prims = realloc(merged_prims, (1 + last_valid_prim) * sizeof(struct _mesa_prim));
778 merged_prims[last_valid_prim] = original_prims[i];
779 merged_prims[last_valid_prim].start = indices_offset + start;
780 merged_prims[last_valid_prim].count = idx - start;
782 merged_prims[last_valid_prim].mode = mode;
785 assert(idx > 0 && idx <= max_indices_count);
787 unsigned merged_prim_count = last_valid_prim + 1;
788 node->cold->ib.ptr = NULL;
789 node->cold->ib.count = idx;
790 node->cold->ib.index_size_shift = (GL_UNSIGNED_INT - GL_UNSIGNED_BYTE) >> 1;
792 /* Correct the primitive starts, we can only do this here as copy_vertices
793 * and convert_line_loop_to_strip above consume the uncorrected starts.
794 * On the other hand the _vbo_loopback_vertex_list call below needs the
795 * primitives to be corrected already.
797 for (unsigned i = 0; i < node->cold->prim_count; i++) {
798 node->cold->prims[i].start += start_offset;
800 /* start_offset shifts vertices (so v[0] becomes v[start_offset]), so we have
801 * to apply this transformation to all indices and max_index.
803 for (unsigned i = 0; i < idx; i++)
804 indices[i] += start_offset;
805 max_index += start_offset;
807 if (!indices_offset) {
808 /* Allocate a new index buffer */
809 _mesa_reference_buffer_object(ctx, &save->previous_ib, NULL);
810 save->previous_ib = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID + 1);
811 bool success = ctx->Driver.BufferData(ctx,
812 GL_ELEMENT_ARRAY_BUFFER_ARB,
813 MAX2(VBO_SAVE_INDEX_SIZE, idx) * sizeof(uint32_t),
815 GL_STATIC_DRAW_ARB, GL_MAP_WRITE_BIT,
818 _mesa_reference_buffer_object(ctx, &save->previous_ib, NULL);
819 _mesa_error(ctx, GL_OUT_OF_MEMORY, "IB allocation");
823 _mesa_reference_buffer_object(ctx, &node->cold->ib.obj, save->previous_ib);
825 if (node->cold->ib.obj) {
826 ctx->Driver.BufferSubData(ctx,
827 indices_offset * sizeof(uint32_t),
828 idx * sizeof(uint32_t),
831 save->ib_first_free_index = indices_offset + idx;
833 node->cold->vertex_count = 0;
834 node->cold->prim_count = 0;
838 if (vertex_to_index) {
839 ctx->Driver.BufferSubData(ctx,
840 original_buffer_offset,
841 (max_index - start_offset + 1) * save->vertex_size * sizeof(fi_type),
842 temp_vertices_buffer,
843 save->vertex_store->bufferobj);
845 _mesa_hash_table_destroy(vertex_to_index, _free_entry);
846 free(temp_vertices_buffer);
848 ctx->Driver.BufferSubData(ctx,
849 original_buffer_offset,
850 idx * save->vertex_size * sizeof(fi_type),
851 &save->vertex_store->buffer_in_ram[original_buffer_offset / sizeof(float)],
852 save->vertex_store->bufferobj);
855 /* Prepare for DrawGallium */
856 memset(&node->merged.info, 0, sizeof(struct pipe_draw_info));
857 /* The other info fields will be updated in vbo_save_playback_vertex_list */
858 node->merged.info.index_size = 4;
859 node->merged.info.instance_count = 1;
860 node->merged.info.index.gl_bo = node->cold->ib.obj;
861 if (merged_prim_count == 1) {
862 node->merged.info.mode = merged_prims[0].mode;
863 node->merged.start_count.start = merged_prims[0].start;
864 node->merged.start_count.count = merged_prims[0].count;
865 node->merged.start_count.index_bias = 0;
866 node->merged.mode = NULL;
868 node->merged.mode = malloc(merged_prim_count * sizeof(unsigned char));
869 node->merged.start_counts = malloc(merged_prim_count * sizeof(struct pipe_draw_start_count_bias));
870 for (unsigned i = 0; i < merged_prim_count; i++) {
871 node->merged.start_counts[i].start = merged_prims[i].start;
872 node->merged.start_counts[i].count = merged_prims[i].count;
873 node->merged.start_counts[i].index_bias = 0;
874 node->merged.mode[i] = merged_prims[i].mode;
877 node->merged.num_draws = merged_prim_count;
878 if (node->merged.num_draws > 1) {
879 bool same_mode = true;
880 for (unsigned i = 1; i < node->merged.num_draws && same_mode; i++) {
881 same_mode = node->merged.mode[i] == node->merged.mode[0];
884 /* All primitives use the same mode, so we can simplify a bit */
885 node->merged.info.mode = node->merged.mode[0];
886 free(node->merged.mode);
887 node->merged.mode = NULL;
895 /* Deal with GL_COMPILE_AND_EXECUTE:
897 if (ctx->ExecuteFlag) {
898 struct _glapi_table *dispatch = GET_DISPATCH();
900 _glapi_set_dispatch(ctx->Exec);
902 /* Note that the range of referenced vertices must be mapped already */
903 _vbo_loopback_vertex_list(ctx, node, save->vertex_store->buffer_in_ram);
905 _glapi_set_dispatch(dispatch);
908 /* Decide whether the storage structs are full, or can be used for
909 * the next vertex lists as well.
911 if (save->vertex_store->used >
912 save->vertex_store->bufferobj->Size / sizeof(float) - 16 * (save->vertex_size + 4)) {
913 realloc_storage(ctx, -1, 0);
916 /* update buffer_ptr for next vertex */
917 save->buffer_ptr = save->vertex_store->buffer_in_ram
918 + save->vertex_store->used;
921 if (save->prim_store->used > save->prim_store->size - 6) {
922 realloc_storage(ctx, 0, -1);
925 /* Reset our structures for the next run of vertices:
932 * This is called when we fill a vertex buffer before we hit a glEnd().
934 * TODO -- If no new vertices have been stored, don't bother saving it.
937 wrap_buffers(struct gl_context *ctx)
939 struct vbo_save_context *save = &vbo_context(ctx)->save;
940 GLint i = save->prim_count - 1;
943 assert(i < (GLint) save->prim_max);
946 /* Close off in-progress primitive.
948 save->prims[i].count = (save->vert_count - save->prims[i].start);
949 mode = save->prims[i].mode;
951 /* store the copied vertices, and allocate a new list.
953 compile_vertex_list(ctx);
955 /* Restart interrupted primitive
957 save->prims[0].mode = mode;
958 save->prims[0].begin = 0;
959 save->prims[0].end = 0;
960 save->prims[0].start = 0;
961 save->prims[0].count = 0;
962 save->prim_count = 1;
967 * Called only when buffers are wrapped as the result of filling the
968 * vertex_store struct.
971 wrap_filled_vertex(struct gl_context *ctx)
973 struct vbo_save_context *save = &vbo_context(ctx)->save;
974 unsigned numComponents;
976 /* Emit a glEnd to close off the last vertex list.
980 /* Copy stored stored vertices to start of new list.
982 assert(save->max_vert - save->vert_count > save->copied.nr);
984 numComponents = save->copied.nr * save->vertex_size;
985 memcpy(save->buffer_ptr,
987 numComponents * sizeof(fi_type));
988 save->buffer_ptr += numComponents;
989 save->vert_count += save->copied.nr;
994 copy_to_current(struct gl_context *ctx)
996 struct vbo_save_context *save = &vbo_context(ctx)->save;
997 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
1000 const int i = u_bit_scan64(&enabled);
1001 assert(save->attrsz[i]);
1003 if (save->attrtype[i] == GL_DOUBLE ||
1004 save->attrtype[i] == GL_UNSIGNED_INT64_ARB)
1005 memcpy(save->current[i], save->attrptr[i], save->attrsz[i] * sizeof(GLfloat));
1007 COPY_CLEAN_4V_TYPE_AS_UNION(save->current[i], save->attrsz[i],
1008 save->attrptr[i], save->attrtype[i]);
1014 copy_from_current(struct gl_context *ctx)
1016 struct vbo_save_context *save = &vbo_context(ctx)->save;
1017 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
1020 const int i = u_bit_scan64(&enabled);
1022 switch (save->attrsz[i]) {
1024 save->attrptr[i][3] = save->current[i][3];
1027 save->attrptr[i][2] = save->current[i][2];
1030 save->attrptr[i][1] = save->current[i][1];
1033 save->attrptr[i][0] = save->current[i][0];
1036 unreachable("Unexpected vertex attribute size");
1043 * Called when we increase the size of a vertex attribute. For example,
1044 * if we've seen one or more glTexCoord2f() calls and now we get a
1045 * glTexCoord3f() call.
1046 * Flush existing data, set new attrib size, replay copied vertices.
1049 upgrade_vertex(struct gl_context *ctx, GLuint attr, GLuint newsz)
1051 struct vbo_save_context *save = &vbo_context(ctx)->save;
1056 /* Store the current run of vertices, and emit a GL_END. Emit a
1057 * BEGIN in the new buffer.
1059 if (save->vert_count)
1062 assert(save->copied.nr == 0);
1064 /* Do a COPY_TO_CURRENT to ensure back-copying works for the case
1065 * when the attribute already exists in the vertex and is having
1066 * its size increased.
1068 copy_to_current(ctx);
1072 oldsz = save->attrsz[attr];
1073 save->attrsz[attr] = newsz;
1074 save->enabled |= BITFIELD64_BIT(attr);
1076 save->vertex_size += newsz - oldsz;
1077 save->max_vert = ((save->vertex_store->bufferobj->Size / sizeof(float) -
1078 save->vertex_store->used) /
1080 save->vert_count = 0;
1082 /* Recalculate all the attrptr[] values:
1085 for (i = 0; i < VBO_ATTRIB_MAX; i++) {
1086 if (save->attrsz[i]) {
1087 save->attrptr[i] = tmp;
1088 tmp += save->attrsz[i];
1091 save->attrptr[i] = NULL; /* will not be dereferenced. */
1095 /* Copy from current to repopulate the vertex with correct values.
1097 copy_from_current(ctx);
1099 /* Replay stored vertices to translate them to new format here.
1101 * If there are copied vertices and the new (upgraded) attribute
1102 * has not been defined before, this list is somewhat degenerate,
1103 * and will need fixup at runtime.
1105 if (save->copied.nr) {
1106 const fi_type *data = save->copied.buffer;
1107 fi_type *dest = save->buffer_map;
1109 /* Need to note this and fix up at runtime (or loopback):
1111 if (attr != VBO_ATTRIB_POS && save->currentsz[attr][0] == 0) {
1113 save->dangling_attr_ref = GL_TRUE;
1116 for (i = 0; i < save->copied.nr; i++) {
1117 GLbitfield64 enabled = save->enabled;
1119 const int j = u_bit_scan64(&enabled);
1120 assert(save->attrsz[j]);
1123 COPY_CLEAN_4V_TYPE_AS_UNION(dest, oldsz, data,
1129 COPY_SZ_4V(dest, newsz, save->current[attr]);
1134 GLint sz = save->attrsz[j];
1135 COPY_SZ_4V(dest, sz, data);
1142 save->buffer_ptr = dest;
1143 save->vert_count += save->copied.nr;
1149 * This is called when the size of a vertex attribute changes.
1150 * For example, after seeing one or more glTexCoord2f() calls we
1151 * get a glTexCoord4f() or glTexCoord1f() call.
1154 fixup_vertex(struct gl_context *ctx, GLuint attr,
1155 GLuint sz, GLenum newType)
1157 struct vbo_save_context *save = &vbo_context(ctx)->save;
1159 if (sz > save->attrsz[attr] ||
1160 newType != save->attrtype[attr]) {
1161 /* New size is larger. Need to flush existing vertices and get
1162 * an enlarged vertex format.
1164 upgrade_vertex(ctx, attr, sz);
1166 else if (sz < save->active_sz[attr]) {
1168 const fi_type *id = vbo_get_default_vals_as_union(save->attrtype[attr]);
1170 /* New size is equal or smaller - just need to fill in some
1173 for (i = sz; i <= save->attrsz[attr]; i++)
1174 save->attrptr[attr][i - 1] = id[i - 1];
1177 save->active_sz[attr] = sz;
1182 * Reset the current size of all vertex attributes to the default
1183 * value of 0. This signals that we haven't yet seen any per-vertex
1184 * commands such as glNormal3f() or glTexCoord2f().
1187 reset_vertex(struct gl_context *ctx)
1189 struct vbo_save_context *save = &vbo_context(ctx)->save;
1191 while (save->enabled) {
1192 const int i = u_bit_scan64(&save->enabled);
1193 assert(save->attrsz[i]);
1194 save->attrsz[i] = 0;
1195 save->active_sz[i] = 0;
1198 save->vertex_size = 0;
1203 * If index=0, does glVertexAttrib*() alias glVertex() to emit a vertex?
1204 * It depends on a few things, including whether we're inside or outside
1208 is_vertex_position(const struct gl_context *ctx, GLuint index)
1210 return (index == 0 &&
1211 _mesa_attr_zero_aliases_vertex(ctx) &&
1212 _mesa_inside_dlist_begin_end(ctx));
1217 #define ERROR(err) _mesa_compile_error(ctx, err, __func__);
1220 /* Only one size for each attribute may be active at once. Eg. if
1221 * Color3f is installed/active, then Color4f may not be, even if the
1222 * vertex actually contains 4 color coordinates. This is because the
1223 * 3f version won't otherwise set color[3] to 1.0 -- this is the job
1224 * of the chooser function when switching between Color4f and Color3f.
1226 #define ATTR_UNION(A, N, T, C, V0, V1, V2, V3) \
1228 struct vbo_save_context *save = &vbo_context(ctx)->save; \
1229 int sz = (sizeof(C) / sizeof(GLfloat)); \
1231 if (save->active_sz[A] != N) \
1232 fixup_vertex(ctx, A, N * sz, T); \
1235 C *dest = (C *)save->attrptr[A]; \
1236 if (N>0) dest[0] = V0; \
1237 if (N>1) dest[1] = V1; \
1238 if (N>2) dest[2] = V2; \
1239 if (N>3) dest[3] = V3; \
1240 save->attrtype[A] = T; \
1246 for (i = 0; i < save->vertex_size; i++) \
1247 save->buffer_ptr[i] = save->vertex[i]; \
1249 save->buffer_ptr += save->vertex_size; \
1251 if (++save->vert_count >= save->max_vert) \
1252 wrap_filled_vertex(ctx); \
1256 #define TAG(x) _save_##x
1258 #include "vbo_attrib_tmp.h"
1262 #define MAT( ATTR, N, face, params ) \
1264 if (face != GL_BACK) \
1265 MAT_ATTR( ATTR, N, params ); /* front */ \
1266 if (face != GL_FRONT) \
1267 MAT_ATTR( ATTR + 1, N, params ); /* back */ \
1272 * Save a glMaterial call found between glBegin/End.
1273 * glMaterial calls outside Begin/End are handled in dlist.c.
1275 static void GLAPIENTRY
1276 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params)
1278 GET_CURRENT_CONTEXT(ctx);
1280 if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
1281 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(face)");
1287 MAT(VBO_ATTRIB_MAT_FRONT_EMISSION, 4, face, params);
1290 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1293 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1296 MAT(VBO_ATTRIB_MAT_FRONT_SPECULAR, 4, face, params);
1299 if (*params < 0 || *params > ctx->Const.MaxShininess) {
1300 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glMaterial(shininess)");
1303 MAT(VBO_ATTRIB_MAT_FRONT_SHININESS, 1, face, params);
1306 case GL_COLOR_INDEXES:
1307 MAT(VBO_ATTRIB_MAT_FRONT_INDEXES, 3, face, params);
1309 case GL_AMBIENT_AND_DIFFUSE:
1310 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1311 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1314 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(pname)");
1320 /* Cope with EvalCoord/CallList called within a begin/end object:
1321 * -- Flush current buffer
1322 * -- Fallback to opcodes for the rest of the begin/end object.
1325 dlist_fallback(struct gl_context *ctx)
1327 struct vbo_save_context *save = &vbo_context(ctx)->save;
1329 if (save->vert_count || save->prim_count) {
1330 if (save->prim_count > 0) {
1331 /* Close off in-progress primitive. */
1332 GLint i = save->prim_count - 1;
1333 save->prims[i].count = save->vert_count - save->prims[i].start;
1336 /* Need to replay this display list with loopback,
1337 * unfortunately, otherwise this primitive won't be handled
1340 save->dangling_attr_ref = GL_TRUE;
1342 compile_vertex_list(ctx);
1345 copy_to_current(ctx);
1347 reset_counters(ctx);
1348 if (save->out_of_memory) {
1349 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1352 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1354 ctx->Driver.SaveNeedFlush = GL_FALSE;
1358 static void GLAPIENTRY
1359 _save_EvalCoord1f(GLfloat u)
1361 GET_CURRENT_CONTEXT(ctx);
1362 dlist_fallback(ctx);
1363 CALL_EvalCoord1f(ctx->Save, (u));
1366 static void GLAPIENTRY
1367 _save_EvalCoord1fv(const GLfloat * v)
1369 GET_CURRENT_CONTEXT(ctx);
1370 dlist_fallback(ctx);
1371 CALL_EvalCoord1fv(ctx->Save, (v));
1374 static void GLAPIENTRY
1375 _save_EvalCoord2f(GLfloat u, GLfloat v)
1377 GET_CURRENT_CONTEXT(ctx);
1378 dlist_fallback(ctx);
1379 CALL_EvalCoord2f(ctx->Save, (u, v));
1382 static void GLAPIENTRY
1383 _save_EvalCoord2fv(const GLfloat * v)
1385 GET_CURRENT_CONTEXT(ctx);
1386 dlist_fallback(ctx);
1387 CALL_EvalCoord2fv(ctx->Save, (v));
1390 static void GLAPIENTRY
1391 _save_EvalPoint1(GLint i)
1393 GET_CURRENT_CONTEXT(ctx);
1394 dlist_fallback(ctx);
1395 CALL_EvalPoint1(ctx->Save, (i));
1398 static void GLAPIENTRY
1399 _save_EvalPoint2(GLint i, GLint j)
1401 GET_CURRENT_CONTEXT(ctx);
1402 dlist_fallback(ctx);
1403 CALL_EvalPoint2(ctx->Save, (i, j));
1406 static void GLAPIENTRY
1407 _save_CallList(GLuint l)
1409 GET_CURRENT_CONTEXT(ctx);
1410 dlist_fallback(ctx);
1411 CALL_CallList(ctx->Save, (l));
1414 static void GLAPIENTRY
1415 _save_CallLists(GLsizei n, GLenum type, const GLvoid * v)
1417 GET_CURRENT_CONTEXT(ctx);
1418 dlist_fallback(ctx);
1419 CALL_CallLists(ctx->Save, (n, type, v));
1425 * Called when a glBegin is getting compiled into a display list.
1426 * Updating of ctx->Driver.CurrentSavePrimitive is already taken care of.
1429 vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode,
1430 bool no_current_update)
1432 struct vbo_save_context *save = &vbo_context(ctx)->save;
1433 const GLuint i = save->prim_count++;
1435 ctx->Driver.CurrentSavePrimitive = mode;
1437 assert(i < save->prim_max);
1438 save->prims[i].mode = mode & VBO_SAVE_PRIM_MODE_MASK;
1439 save->prims[i].begin = 1;
1440 save->prims[i].end = 0;
1441 save->prims[i].start = save->vert_count;
1442 save->prims[i].count = 0;
1444 save->no_current_update = no_current_update;
1446 if (save->out_of_memory) {
1447 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1450 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
1453 /* We need to call vbo_save_SaveFlushVertices() if there's state change */
1454 ctx->Driver.SaveNeedFlush = GL_TRUE;
1458 static void GLAPIENTRY
1461 GET_CURRENT_CONTEXT(ctx);
1462 struct vbo_save_context *save = &vbo_context(ctx)->save;
1463 const GLint i = save->prim_count - 1;
1465 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1466 save->prims[i].end = 1;
1467 save->prims[i].count = (save->vert_count - save->prims[i].start);
1469 if (i == (GLint) save->prim_max - 1) {
1470 compile_vertex_list(ctx);
1471 assert(save->copied.nr == 0);
1474 /* Swap out this vertex format while outside begin/end. Any color,
1475 * etc. received between here and the next begin will be compiled
1478 if (save->out_of_memory) {
1479 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1482 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1487 static void GLAPIENTRY
1488 _save_Begin(GLenum mode)
1490 GET_CURRENT_CONTEXT(ctx);
1492 _mesa_compile_error(ctx, GL_INVALID_OPERATION, "Recursive glBegin");
1496 static void GLAPIENTRY
1497 _save_PrimitiveRestartNV(void)
1499 GET_CURRENT_CONTEXT(ctx);
1500 struct vbo_save_context *save = &vbo_context(ctx)->save;
1502 if (save->prim_count == 0) {
1503 /* We're not inside a glBegin/End pair, so calling glPrimitiverRestartNV
1506 _mesa_compile_error(ctx, GL_INVALID_OPERATION,
1507 "glPrimitiveRestartNV called outside glBegin/End");
1509 /* get current primitive mode */
1510 GLenum curPrim = save->prims[save->prim_count - 1].mode;
1511 bool no_current_update = save->no_current_update;
1513 /* restart primitive */
1514 CALL_End(ctx->CurrentServerDispatch, ());
1515 vbo_save_NotifyBegin(ctx, curPrim, no_current_update);
1520 /* Unlike the functions above, these are to be hooked into the vtxfmt
1521 * maintained in ctx->ListState, active when the list is known or
1522 * suspected to be outside any begin/end primitive.
1523 * Note: OBE = Outside Begin/End
1525 static void GLAPIENTRY
1526 _save_OBE_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
1528 GET_CURRENT_CONTEXT(ctx);
1529 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1531 vbo_save_NotifyBegin(ctx, GL_QUADS, false);
1532 CALL_Vertex2f(dispatch, (x1, y1));
1533 CALL_Vertex2f(dispatch, (x2, y1));
1534 CALL_Vertex2f(dispatch, (x2, y2));
1535 CALL_Vertex2f(dispatch, (x1, y2));
1536 CALL_End(dispatch, ());
1540 static void GLAPIENTRY
1541 _save_OBE_Rectd(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2)
1543 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1546 static void GLAPIENTRY
1547 _save_OBE_Rectdv(const GLdouble *v1, const GLdouble *v2)
1549 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1552 static void GLAPIENTRY
1553 _save_OBE_Rectfv(const GLfloat *v1, const GLfloat *v2)
1555 _save_OBE_Rectf(v1[0], v1[1], v2[0], v2[1]);
1558 static void GLAPIENTRY
1559 _save_OBE_Recti(GLint x1, GLint y1, GLint x2, GLint y2)
1561 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1564 static void GLAPIENTRY
1565 _save_OBE_Rectiv(const GLint *v1, const GLint *v2)
1567 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1570 static void GLAPIENTRY
1571 _save_OBE_Rects(GLshort x1, GLshort y1, GLshort x2, GLshort y2)
1573 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1576 static void GLAPIENTRY
1577 _save_OBE_Rectsv(const GLshort *v1, const GLshort *v2)
1579 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1583 _ensure_draws_fits_in_storage(struct gl_context *ctx, int primcount, int vertcount)
1585 struct vbo_save_context *save = &vbo_context(ctx)->save;
1587 bool realloc_prim = save->prim_count + primcount > save->prim_max;
1588 bool realloc_vert = save->vertex_size && (save->vert_count + vertcount >= save->max_vert);
1590 if (realloc_prim || realloc_vert) {
1591 if (save->vert_count || save->prim_count)
1592 compile_vertex_list(ctx);
1593 realloc_storage(ctx, realloc_prim ? primcount : -1, realloc_vert ? vertcount : -1);
1594 reset_counters(ctx);
1595 assert(save->prim_max);
1600 static void GLAPIENTRY
1601 _save_OBE_DrawArrays(GLenum mode, GLint start, GLsizei count)
1603 GET_CURRENT_CONTEXT(ctx);
1604 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1605 struct vbo_save_context *save = &vbo_context(ctx)->save;
1608 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1609 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)");
1613 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawArrays(count<0)");
1617 if (save->out_of_memory)
1620 _ensure_draws_fits_in_storage(ctx, 1, count);
1622 /* Make sure to process any VBO binding changes */
1623 _mesa_update_state(ctx);
1625 _mesa_vao_map_arrays(ctx, vao, GL_MAP_READ_BIT);
1627 vbo_save_NotifyBegin(ctx, mode, true);
1629 for (i = 0; i < count; i++)
1630 _mesa_array_element(ctx, start + i);
1631 CALL_End(ctx->CurrentServerDispatch, ());
1633 _mesa_vao_unmap_arrays(ctx, vao);
1637 static void GLAPIENTRY
1638 _save_OBE_MultiDrawArrays(GLenum mode, const GLint *first,
1639 const GLsizei *count, GLsizei primcount)
1641 GET_CURRENT_CONTEXT(ctx);
1644 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1645 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMultiDrawArrays(mode)");
1649 if (primcount < 0) {
1650 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1651 "glMultiDrawArrays(primcount<0)");
1655 unsigned vertcount = 0;
1656 for (i = 0; i < primcount; i++) {
1658 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1659 "glMultiDrawArrays(count[i]<0)");
1662 vertcount += count[i];
1665 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1667 for (i = 0; i < primcount; i++) {
1669 _save_OBE_DrawArrays(mode, first[i], count[i]);
1676 array_element(struct gl_context *ctx,
1677 GLint basevertex, GLuint elt, unsigned index_size_shift)
1679 /* Section 10.3.5 Primitive Restart:
1681 * When one of the *BaseVertex drawing commands specified in section 10.5
1682 * is used, the primitive restart comparison occurs before the basevertex
1683 * offset is added to the array index.
1685 /* If PrimitiveRestart is enabled and the index is the RestartIndex
1686 * then we call PrimitiveRestartNV and return.
1688 if (ctx->Array._PrimitiveRestart[index_size_shift] &&
1689 elt == ctx->Array._RestartIndex[index_size_shift]) {
1690 CALL_PrimitiveRestartNV(ctx->CurrentServerDispatch, ());
1694 _mesa_array_element(ctx, basevertex + elt);
1698 /* Could do better by copying the arrays and element list intact and
1699 * then emitting an indexed prim at runtime.
1701 static void GLAPIENTRY
1702 _save_OBE_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
1703 const GLvoid * indices, GLint basevertex)
1705 GET_CURRENT_CONTEXT(ctx);
1706 struct vbo_save_context *save = &vbo_context(ctx)->save;
1707 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1708 struct gl_buffer_object *indexbuf = vao->IndexBufferObj;
1711 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1712 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawElements(mode)");
1716 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1719 if (type != GL_UNSIGNED_BYTE &&
1720 type != GL_UNSIGNED_SHORT &&
1721 type != GL_UNSIGNED_INT) {
1722 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1726 if (save->out_of_memory)
1729 _ensure_draws_fits_in_storage(ctx, 1, count);
1731 /* Make sure to process any VBO binding changes */
1732 _mesa_update_state(ctx);
1734 _mesa_vao_map(ctx, vao, GL_MAP_READ_BIT);
1738 ADD_POINTERS(indexbuf->Mappings[MAP_INTERNAL].Pointer, indices);
1740 vbo_save_NotifyBegin(ctx, mode, true);
1743 case GL_UNSIGNED_BYTE:
1744 for (i = 0; i < count; i++)
1745 array_element(ctx, basevertex, ((GLubyte *) indices)[i], 0);
1747 case GL_UNSIGNED_SHORT:
1748 for (i = 0; i < count; i++)
1749 array_element(ctx, basevertex, ((GLushort *) indices)[i], 1);
1751 case GL_UNSIGNED_INT:
1752 for (i = 0; i < count; i++)
1753 array_element(ctx, basevertex, ((GLuint *) indices)[i], 2);
1756 _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)");
1760 CALL_End(ctx->CurrentServerDispatch, ());
1762 _mesa_vao_unmap(ctx, vao);
1765 static void GLAPIENTRY
1766 _save_OBE_DrawElements(GLenum mode, GLsizei count, GLenum type,
1767 const GLvoid * indices)
1769 _save_OBE_DrawElementsBaseVertex(mode, count, type, indices, 0);
1773 static void GLAPIENTRY
1774 _save_OBE_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
1775 GLsizei count, GLenum type,
1776 const GLvoid * indices)
1778 GET_CURRENT_CONTEXT(ctx);
1779 struct vbo_save_context *save = &vbo_context(ctx)->save;
1781 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1782 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)");
1786 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1787 "glDrawRangeElements(count<0)");
1790 if (type != GL_UNSIGNED_BYTE &&
1791 type != GL_UNSIGNED_SHORT &&
1792 type != GL_UNSIGNED_INT) {
1793 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(type)");
1797 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1798 "glDrawRangeElements(end < start)");
1802 if (save->out_of_memory)
1805 _save_OBE_DrawElements(mode, count, type, indices);
1809 static void GLAPIENTRY
1810 _save_OBE_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type,
1811 const GLvoid * const *indices, GLsizei primcount)
1813 GET_CURRENT_CONTEXT(ctx);
1814 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1818 for (i = 0; i < primcount; i++) {
1819 vertcount += count[i];
1821 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1823 for (i = 0; i < primcount; i++) {
1825 CALL_DrawElements(dispatch, (mode, count[i], type, indices[i]));
1831 static void GLAPIENTRY
1832 _save_OBE_MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count,
1834 const GLvoid * const *indices,
1836 const GLint *basevertex)
1838 GET_CURRENT_CONTEXT(ctx);
1839 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1843 for (i = 0; i < primcount; i++) {
1844 vertcount += count[i];
1846 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1848 for (i = 0; i < primcount; i++) {
1850 CALL_DrawElementsBaseVertex(dispatch, (mode, count[i], type,
1859 vtxfmt_init(struct gl_context *ctx)
1861 struct vbo_save_context *save = &vbo_context(ctx)->save;
1862 GLvertexformat *vfmt = &save->vtxfmt;
1864 #define NAME_AE(x) _ae_##x
1865 #define NAME_CALLLIST(x) _save_##x
1866 #define NAME(x) _save_##x
1867 #define NAME_ES(x) _save_##x##ARB
1869 #include "vbo_init_tmp.h"
1874 * Initialize the dispatch table with the VBO functions for display
1878 vbo_initialize_save_dispatch(const struct gl_context *ctx,
1879 struct _glapi_table *exec)
1881 SET_DrawArrays(exec, _save_OBE_DrawArrays);
1882 SET_MultiDrawArrays(exec, _save_OBE_MultiDrawArrays);
1883 SET_DrawElements(exec, _save_OBE_DrawElements);
1884 SET_DrawElementsBaseVertex(exec, _save_OBE_DrawElementsBaseVertex);
1885 SET_DrawRangeElements(exec, _save_OBE_DrawRangeElements);
1886 SET_MultiDrawElementsEXT(exec, _save_OBE_MultiDrawElements);
1887 SET_MultiDrawElementsBaseVertex(exec, _save_OBE_MultiDrawElementsBaseVertex);
1888 SET_Rectf(exec, _save_OBE_Rectf);
1889 SET_Rectd(exec, _save_OBE_Rectd);
1890 SET_Rectdv(exec, _save_OBE_Rectdv);
1891 SET_Rectfv(exec, _save_OBE_Rectfv);
1892 SET_Recti(exec, _save_OBE_Recti);
1893 SET_Rectiv(exec, _save_OBE_Rectiv);
1894 SET_Rects(exec, _save_OBE_Rects);
1895 SET_Rectsv(exec, _save_OBE_Rectsv);
1897 /* Note: other glDraw functins aren't compiled into display lists */
1903 vbo_save_SaveFlushVertices(struct gl_context *ctx)
1905 struct vbo_save_context *save = &vbo_context(ctx)->save;
1907 /* Noop when we are actually active:
1909 if (ctx->Driver.CurrentSavePrimitive <= PRIM_MAX)
1912 if (save->vert_count || save->prim_count)
1913 compile_vertex_list(ctx);
1915 copy_to_current(ctx);
1917 reset_counters(ctx);
1918 ctx->Driver.SaveNeedFlush = GL_FALSE;
1923 * Called from glNewList when we're starting to compile a display list.
1926 vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode)
1928 struct vbo_save_context *save = &vbo_context(ctx)->save;
1933 if (!save->prim_store)
1934 save->prim_store = alloc_prim_store(0);
1936 if (!save->vertex_store)
1937 save->vertex_store = alloc_vertex_store(ctx, 0);
1939 save->buffer_ptr = save->vertex_store->buffer_in_ram + save->vertex_store->used;
1942 reset_counters(ctx);
1943 ctx->Driver.SaveNeedFlush = GL_FALSE;
1948 * Called from glEndList when we're finished compiling a display list.
1951 vbo_save_EndList(struct gl_context *ctx)
1953 struct vbo_save_context *save = &vbo_context(ctx)->save;
1955 /* EndList called inside a (saved) Begin/End pair?
1957 if (_mesa_inside_dlist_begin_end(ctx)) {
1958 if (save->prim_count > 0) {
1959 GLint i = save->prim_count - 1;
1960 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1961 save->prims[i].end = 0;
1962 save->prims[i].count = save->vert_count - save->prims[i].start;
1965 /* Make sure this vertex list gets replayed by the "loopback"
1968 save->dangling_attr_ref = GL_TRUE;
1969 vbo_save_SaveFlushVertices(ctx);
1971 /* Swap out this vertex format while outside begin/end. Any color,
1972 * etc. received between here and the next begin will be compiled
1975 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1978 assert(save->vertex_size == 0);
1982 * Called during context creation/init.
1985 current_init(struct gl_context *ctx)
1987 struct vbo_save_context *save = &vbo_context(ctx)->save;
1990 for (i = VBO_ATTRIB_POS; i <= VBO_ATTRIB_EDGEFLAG; i++) {
1991 const GLuint j = i - VBO_ATTRIB_POS;
1992 assert(j < VERT_ATTRIB_MAX);
1993 save->currentsz[i] = &ctx->ListState.ActiveAttribSize[j];
1994 save->current[i] = (fi_type *) ctx->ListState.CurrentAttrib[j];
1997 for (i = VBO_ATTRIB_FIRST_MATERIAL; i <= VBO_ATTRIB_LAST_MATERIAL; i++) {
1998 const GLuint j = i - VBO_ATTRIB_FIRST_MATERIAL;
1999 assert(j < MAT_ATTRIB_MAX);
2000 save->currentsz[i] = &ctx->ListState.ActiveMaterialSize[j];
2001 save->current[i] = (fi_type *) ctx->ListState.CurrentMaterial[j];
2007 * Initialize the display list compiler. Called during context creation.
2010 vbo_save_api_init(struct vbo_save_context *save)
2012 struct gl_context *ctx = gl_context_from_vbo_save(save);
2016 _mesa_noop_vtxfmt_init(ctx, &save->vtxfmt_noop);