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.
68 * The compilation process works as follows. All vertex attributes
69 * except position are copied to vbo_save_context::attrptr (see ATTR_UNION).
70 * 'attrptr' are pointers to vbo_save_context::vertex ordered according to the enabled
71 * attributes (se upgrade_vertex).
72 * When the position attribute is received, all the attributes are then
73 * copied to the vertex_store (see the end of ATTR_UNION).
74 * The vertex_store is simply an extensible float array.
75 * When the vertex list needs to be compiled (see compile_vertex_list),
76 * several transformations are performed:
77 * - some primitives are merged together (eg: two consecutive GL_TRIANGLES
78 * with 3 vertices can be merged in a single GL_TRIANGLES with 6 vertices).
79 * - an index buffer is built.
80 * - identical vertices are detected and only one is kept.
81 * At the end of this transformation, the index buffer and the vertex buffer
82 * are uploaded in vRAM in the same buffer object.
83 * This buffer object is shared between multiple display list to allow
84 * draw calls merging later.
86 * The layout of this buffer for two display lists is:
87 * V0A0|V0A1|V1A0|V1A1|P0I0|P0I1|V0A0V0A1V0A2|V1A1V1A1V1A2|...
89 * - VxAy: vertex x, attributes y
90 * - PxIy: draw x, index y
92 * To allow draw call merging, display list must use the same VAO, including
93 * the same Offset in the buffer object. To achieve this, the start values of
94 * the primitive are shifted and the indices adjusted (see offset_diff and
95 * start_offset in compile_vertex_list).
97 * Display list using the loopback code (see vbo_save_playback_vertex_list_loopback),
98 * can't be drawn with an index buffer so this transformation is disabled
103 #include "main/glheader.h"
104 #include "main/arrayobj.h"
105 #include "main/bufferobj.h"
106 #include "main/context.h"
107 #include "main/dlist.h"
108 #include "main/enums.h"
109 #include "main/eval.h"
110 #include "main/macros.h"
111 #include "main/draw_validate.h"
112 #include "main/api_arrayelt.h"
113 #include "main/vtxfmt.h"
114 #include "main/dispatch.h"
115 #include "main/state.h"
116 #include "main/varray.h"
117 #include "util/bitscan.h"
118 #include "util/u_memory.h"
119 #include "util/hash_table.h"
121 #include "gallium/include/pipe/p_state.h"
123 #include "vbo_noop.h"
124 #include "vbo_private.h"
131 /* An interesting VBO number/name to help with debugging */
132 #define VBO_BUF_ID 12345
134 static void GLAPIENTRY
135 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params);
137 static void GLAPIENTRY
138 _save_EvalCoord1f(GLfloat u);
140 static void GLAPIENTRY
141 _save_EvalCoord2f(GLfloat u, GLfloat v);
144 handle_out_of_memory(struct gl_context *ctx)
146 struct vbo_save_context *save = &vbo_context(ctx)->save;
147 _mesa_noop_vtxfmt_init(ctx, &save->vtxfmt);
148 save->out_of_memory = true;
152 * NOTE: Old 'parity' issue is gone, but copying can still be
153 * wrong-footed on replay.
156 copy_vertices(struct gl_context *ctx,
157 const struct vbo_save_vertex_list *node,
158 const fi_type * src_buffer)
160 struct vbo_save_context *save = &vbo_context(ctx)->save;
161 struct _mesa_prim *prim = &node->cold->prims[node->cold->prim_count - 1];
162 GLuint sz = save->vertex_size;
164 if (prim->end || !prim->count || !sz)
167 const fi_type *src = src_buffer + prim->start * sz;
168 assert(save->copied.buffer == NULL);
169 save->copied.buffer = malloc(sizeof(fi_type) * sz * prim->count);
171 return vbo_copy_vertices(ctx, prim->mode, prim->start, &prim->count,
172 prim->begin, sz, true, save->copied.buffer, src);
176 static struct vbo_save_primitive_store *
177 realloc_prim_store(struct vbo_save_primitive_store *store, int prim_count)
180 store = CALLOC_STRUCT(vbo_save_primitive_store);
182 uint32_t old_size = store->size;
183 store->size = prim_count;
184 assert (old_size < store->size);
185 store->prims = realloc(store->prims, store->size * sizeof(struct _mesa_prim));
186 memset(&store->prims[old_size], 0, (store->size - old_size) * sizeof(struct _mesa_prim));
193 reset_counters(struct gl_context *ctx)
195 struct vbo_save_context *save = &vbo_context(ctx)->save;
197 save->vertex_store->used = 0;
198 save->prim_store->used = 0;
199 save->dangling_attr_ref = GL_FALSE;
203 * For a list of prims, try merging prims that can just be extensions of the
207 merge_prims(struct gl_context *ctx, struct _mesa_prim *prim_list,
211 struct _mesa_prim *prev_prim = prim_list;
213 for (i = 1; i < *prim_count; i++) {
214 struct _mesa_prim *this_prim = prim_list + i;
216 vbo_try_prim_conversion(&this_prim->mode, &this_prim->count);
218 if (vbo_merge_draws(ctx, true,
219 prev_prim->mode, this_prim->mode,
220 prev_prim->start, this_prim->start,
221 &prev_prim->count, this_prim->count,
222 prev_prim->basevertex, this_prim->basevertex,
224 this_prim->begin, this_prim->end)) {
225 /* We've found a prim that just extend the previous one. Tack it
226 * onto the previous one, and let this primitive struct get dropped.
231 /* If any previous primitives have been dropped, then we need to copy
232 * this later one into the next available slot.
235 if (prev_prim != this_prim)
236 *prev_prim = *this_prim;
239 *prim_count = prev_prim - prim_list + 1;
244 * Convert GL_LINE_LOOP primitive into GL_LINE_STRIP so that drivers
245 * don't have to worry about handling the _mesa_prim::begin/end flags.
246 * See https://bugs.freedesktop.org/show_bug.cgi?id=81174
249 convert_line_loop_to_strip(struct vbo_save_context *save,
250 struct vbo_save_vertex_list *node)
252 struct _mesa_prim *prim = &node->cold->prims[node->cold->prim_count - 1];
254 assert(prim->mode == GL_LINE_LOOP);
257 /* Copy the 0th vertex to end of the buffer and extend the
258 * vertex count by one to finish the line loop.
260 const GLuint sz = save->vertex_size;
262 const fi_type *src = save->vertex_store->buffer_in_ram + prim->start * sz;
264 fi_type *dst = save->vertex_store->buffer_in_ram + (prim->start + prim->count) * sz;
266 memcpy(dst, src, sz * sizeof(float));
269 node->cold->vertex_count++;
270 save->vertex_store->used += sz;
274 /* Drawing the second or later section of a long line loop.
275 * Skip the 0th vertex.
281 prim->mode = GL_LINE_STRIP;
285 /* Compare the present vao if it has the same setup. */
287 compare_vao(gl_vertex_processing_mode mode,
288 const struct gl_vertex_array_object *vao,
289 const struct gl_buffer_object *bo, GLintptr buffer_offset,
290 GLuint stride, GLbitfield64 vao_enabled,
291 const GLubyte size[VBO_ATTRIB_MAX],
292 const GLenum16 type[VBO_ATTRIB_MAX],
293 const GLuint offset[VBO_ATTRIB_MAX])
298 /* If the enabled arrays are not the same we are not equal. */
299 if (vao_enabled != vao->Enabled)
302 /* Check the buffer binding at 0 */
303 if (vao->BufferBinding[0].BufferObj != bo)
305 /* BufferBinding[0].Offset != buffer_offset is checked per attribute */
306 if (vao->BufferBinding[0].Stride != stride)
308 assert(vao->BufferBinding[0].InstanceDivisor == 0);
310 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space */
311 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
313 /* Now check the enabled arrays */
314 GLbitfield mask = vao_enabled;
316 const int attr = u_bit_scan(&mask);
317 const unsigned char vbo_attr = vao_to_vbo_map[attr];
318 const GLenum16 tp = type[vbo_attr];
319 const GLintptr off = offset[vbo_attr] + buffer_offset;
320 const struct gl_array_attributes *attrib = &vao->VertexAttrib[attr];
321 if (attrib->RelativeOffset + vao->BufferBinding[0].Offset != off)
323 if (attrib->Format.Type != tp)
325 if (attrib->Format.Size != size[vbo_attr])
327 assert(attrib->Format.Format == GL_RGBA);
328 assert(attrib->Format.Normalized == GL_FALSE);
329 assert(attrib->Format.Integer == vbo_attrtype_to_integer_flag(tp));
330 assert(attrib->Format.Doubles == vbo_attrtype_to_double_flag(tp));
331 assert(attrib->BufferBindingIndex == 0);
338 /* Create or reuse the vao for the vertex processing mode. */
340 update_vao(struct gl_context *ctx,
341 gl_vertex_processing_mode mode,
342 struct gl_vertex_array_object **vao,
343 struct gl_buffer_object *bo, GLintptr buffer_offset,
344 GLuint stride, GLbitfield64 vbo_enabled,
345 const GLubyte size[VBO_ATTRIB_MAX],
346 const GLenum16 type[VBO_ATTRIB_MAX],
347 const GLuint offset[VBO_ATTRIB_MAX])
349 /* Compute the bitmasks of vao_enabled arrays */
350 GLbitfield vao_enabled = _vbo_get_vao_enabled_from_vbo(mode, vbo_enabled);
353 * Check if we can possibly reuse the exisiting one.
354 * In the long term we should reset them when something changes.
356 if (compare_vao(mode, *vao, bo, buffer_offset, stride,
357 vao_enabled, size, type, offset))
360 /* The initial refcount is 1 */
361 _mesa_reference_vao(ctx, vao, NULL);
362 *vao = _mesa_new_vao(ctx, ~((GLuint)0));
365 * assert(stride <= ctx->Const.MaxVertexAttribStride);
366 * MaxVertexAttribStride is not set for drivers that does not
367 * expose GL 44 or GLES 31.
370 /* Bind the buffer object at binding point 0 */
371 _mesa_bind_vertex_buffer(ctx, *vao, 0, bo, buffer_offset, stride, false,
374 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space
375 * Note that the position/generic0 aliasing is done in the VAO.
377 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
378 /* Now set the enable arrays */
379 GLbitfield mask = vao_enabled;
381 const int vao_attr = u_bit_scan(&mask);
382 const GLubyte vbo_attr = vao_to_vbo_map[vao_attr];
383 assert(offset[vbo_attr] <= ctx->Const.MaxVertexAttribRelativeOffset);
385 _vbo_set_attrib_format(ctx, *vao, vao_attr, buffer_offset,
386 size[vbo_attr], type[vbo_attr], offset[vbo_attr]);
387 _mesa_vertex_attrib_binding(ctx, *vao, vao_attr, 0);
389 _mesa_enable_vertex_array_attribs(ctx, *vao, vao_enabled);
390 assert(vao_enabled == (*vao)->Enabled);
391 assert((vao_enabled & ~(*vao)->VertexAttribBufferMask) == 0);
393 /* Finalize and freeze the VAO */
394 _mesa_set_vao_immutable(ctx, *vao);
397 static void wrap_filled_vertex(struct gl_context *ctx);
399 /* Grow the vertex storage to accomodate for vertex_count new vertices */
401 grow_vertex_storage(struct gl_context *ctx, int vertex_count)
403 struct vbo_save_context *save = &vbo_context(ctx)->save;
404 assert (save->vertex_store);
406 int new_size = (save->vertex_store->used +
407 vertex_count * save->vertex_size) * sizeof(GLfloat);
409 /* Limit how much memory we allocate. */
410 if (save->prim_store->used > 0 &&
412 new_size > VBO_SAVE_BUFFER_SIZE) {
413 wrap_filled_vertex(ctx);
414 new_size = VBO_SAVE_BUFFER_SIZE;
417 if (new_size > save->vertex_store->buffer_in_ram_size) {
418 save->vertex_store->buffer_in_ram_size = new_size;
419 save->vertex_store->buffer_in_ram = realloc(save->vertex_store->buffer_in_ram,
420 save->vertex_store->buffer_in_ram_size);
421 if (save->vertex_store->buffer_in_ram == NULL)
422 handle_out_of_memory(ctx);
428 unsigned vertex_size;
429 fi_type *vertex_attributes;
432 static uint32_t _hash_vertex_key(const void *key)
434 struct vertex_key *k = (struct vertex_key*)key;
435 unsigned sz = k->vertex_size;
437 return _mesa_hash_data(k->vertex_attributes, sz * sizeof(float));
440 static bool _compare_vertex_key(const void *key1, const void *key2)
442 struct vertex_key *k1 = (struct vertex_key*)key1;
443 struct vertex_key *k2 = (struct vertex_key*)key2;
444 /* All the compared vertices are going to be drawn with the same VAO,
445 * so we can compare the attributes. */
446 assert (k1->vertex_size == k2->vertex_size);
447 return memcmp(k1->vertex_attributes,
448 k2->vertex_attributes,
449 k1->vertex_size * sizeof(float)) == 0;
452 static void _free_entry(struct hash_entry *entry)
454 free((void*)entry->key);
457 /* Add vertex to the vertex buffer and return its index. If this vertex is a duplicate
458 * of an existing vertex, return the original index instead.
461 add_vertex(struct vbo_save_context *save, struct hash_table *hash_to_index,
462 uint32_t index, fi_type *new_buffer, uint32_t *max_index)
464 /* If vertex deduplication is disabled return the original index. */
468 fi_type *vert = save->vertex_store->buffer_in_ram + save->vertex_size * index;
470 struct vertex_key *key = malloc(sizeof(struct vertex_key));
471 key->vertex_size = save->vertex_size;
472 key->vertex_attributes = vert;
474 struct hash_entry *entry = _mesa_hash_table_search(hash_to_index, key);
477 /* We found an existing vertex with the same hash, return its index. */
478 return (uintptr_t) entry->data;
480 /* This is a new vertex. Determine a new index and copy its attributes to the vertex
481 * buffer. Note that 'new_buffer' is created at each list compilation so we write vertices
482 * starting at index 0.
484 uint32_t n = _mesa_hash_table_num_entries(hash_to_index);
485 *max_index = MAX2(n, *max_index);
487 memcpy(&new_buffer[save->vertex_size * n],
489 save->vertex_size * sizeof(fi_type));
491 _mesa_hash_table_insert(hash_to_index, key, (void*)(uintptr_t)(n));
493 /* The index buffer is shared between list compilations, so add the base index to get
502 get_vertex_count(struct vbo_save_context *save)
504 if (!save->vertex_size)
506 return save->vertex_store->used / save->vertex_size;
511 * Insert the active immediate struct onto the display list currently
515 compile_vertex_list(struct gl_context *ctx)
517 struct vbo_save_context *save = &vbo_context(ctx)->save;
518 struct vbo_save_vertex_list *node;
520 /* Allocate space for this structure in the display list currently
523 node = (struct vbo_save_vertex_list *)
524 _mesa_dlist_alloc_vertex_list(ctx, !save->dangling_attr_ref && !save->no_current_update);
529 memset(node, 0, sizeof(struct vbo_save_vertex_list));
530 node->cold = calloc(1, sizeof(*node->cold));
532 /* Make sure the pointer is aligned to the size of a pointer */
533 assert((GLintptr) node % sizeof(void *) == 0);
535 const GLsizei stride = save->vertex_size*sizeof(GLfloat);
537 node->cold->vertex_count = get_vertex_count(save);
538 node->cold->wrap_count = save->copied.nr;
539 node->cold->prims = malloc(sizeof(struct _mesa_prim) * save->prim_store->used);
540 memcpy(node->cold->prims, save->prim_store->prims, sizeof(struct _mesa_prim) * save->prim_store->used);
541 node->cold->ib.obj = NULL;
542 node->cold->prim_count = save->prim_store->used;
544 if (save->no_current_update) {
545 node->cold->current_data = NULL;
548 GLuint current_size = save->vertex_size - save->attrsz[0];
549 node->cold->current_data = NULL;
552 node->cold->current_data = malloc(current_size * sizeof(GLfloat));
553 if (node->cold->current_data) {
554 const char *buffer = (const char *)save->vertex_store->buffer_in_ram;
555 unsigned attr_offset = save->attrsz[0] * sizeof(GLfloat);
556 unsigned vertex_offset = 0;
558 if (node->cold->vertex_count)
559 vertex_offset = (node->cold->vertex_count - 1) * stride;
561 memcpy(node->cold->current_data, buffer + vertex_offset + attr_offset,
562 current_size * sizeof(GLfloat));
564 _mesa_error(ctx, GL_OUT_OF_MEMORY, "Current value allocation");
565 handle_out_of_memory(ctx);
570 assert(save->attrsz[VBO_ATTRIB_POS] != 0 || node->cold->vertex_count == 0);
572 if (save->dangling_attr_ref)
573 ctx->ListState.Current.UseLoopback = true;
575 /* Copy duplicated vertices
577 save->copied.nr = copy_vertices(ctx, node, save->vertex_store->buffer_in_ram);
579 if (node->cold->prims[node->cold->prim_count - 1].mode == GL_LINE_LOOP) {
580 convert_line_loop_to_strip(save, node);
583 merge_prims(ctx, node->cold->prims, &node->cold->prim_count);
585 GLintptr buffer_offset = 0;
586 GLuint start_offset = 0;
588 /* Create an index buffer. */
589 node->cold->min_index = node->cold->max_index = 0;
590 if (node->cold->vertex_count == 0 || node->cold->prim_count == 0)
593 /* We won't modify node->prims, so use a const alias to avoid unintended
595 const struct _mesa_prim *original_prims = node->cold->prims;
597 int end = original_prims[node->cold->prim_count - 1].start +
598 original_prims[node->cold->prim_count - 1].count;
599 int total_vert_count = end - original_prims[0].start;
601 node->cold->min_index = node->cold->prims[0].start;
602 node->cold->max_index = end - 1;
604 int max_index_count = total_vert_count * 2;
606 int size = max_index_count * sizeof(uint32_t);
607 uint32_t* indices = (uint32_t*) malloc(size);
608 struct _mesa_prim *merged_prims = NULL;
611 struct hash_table *vertex_to_index = NULL;
612 fi_type *temp_vertices_buffer = NULL;
614 /* The loopback replay code doesn't use the index buffer, so we can't
615 * dedup vertices in this case.
617 if (!ctx->ListState.Current.UseLoopback) {
618 vertex_to_index = _mesa_hash_table_create(NULL, _hash_vertex_key, _compare_vertex_key);
619 temp_vertices_buffer = malloc(save->vertex_store->buffer_in_ram_size);
622 uint32_t max_index = 0;
624 int last_valid_prim = -1;
625 /* Construct indices array. */
626 for (unsigned i = 0; i < node->cold->prim_count; i++) {
627 assert(original_prims[i].basevertex == 0);
628 GLubyte mode = original_prims[i].mode;
630 int vertex_count = original_prims[i].count;
635 /* Line strips may get converted to lines */
636 if (mode == GL_LINE_STRIP)
639 /* If 2 consecutive prims use the same mode => merge them. */
640 bool merge_prims = last_valid_prim >= 0 &&
641 mode == merged_prims[last_valid_prim].mode &&
642 mode != GL_LINE_LOOP && mode != GL_TRIANGLE_FAN &&
643 mode != GL_QUAD_STRIP && mode != GL_POLYGON &&
646 /* To be able to merge consecutive triangle strips we need to insert
647 * a degenerate triangle.
650 mode == GL_TRIANGLE_STRIP) {
651 /* Insert a degenerate triangle */
652 assert(merged_prims[last_valid_prim].mode == GL_TRIANGLE_STRIP);
653 unsigned tri_count = merged_prims[last_valid_prim].count - 2;
655 indices[idx] = indices[idx - 1];
656 indices[idx + 1] = add_vertex(save, vertex_to_index, original_prims[i].start,
657 temp_vertices_buffer, &max_index);
659 merged_prims[last_valid_prim].count += 2;
662 /* Add another index to preserve winding order */
663 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start,
664 temp_vertices_buffer, &max_index);
665 merged_prims[last_valid_prim].count++;
671 /* Convert line strips to lines if it'll allow if the previous
672 * prim mode is GL_LINES (so merge_prims is true) or if the next
673 * primitive mode is GL_LINES or GL_LINE_LOOP.
675 if (original_prims[i].mode == GL_LINE_STRIP &&
677 (i < node->cold->prim_count - 1 &&
678 (original_prims[i + 1].mode == GL_LINE_STRIP ||
679 original_prims[i + 1].mode == GL_LINES)))) {
680 for (unsigned j = 0; j < vertex_count; j++) {
681 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start + j,
682 temp_vertices_buffer, &max_index);
683 /* Repeat all but the first/last indices. */
684 if (j && j != vertex_count - 1) {
685 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start + j,
686 temp_vertices_buffer, &max_index);
690 /* We didn't convert to LINES, so restore the original mode */
691 mode = original_prims[i].mode;
693 for (unsigned j = 0; j < vertex_count; j++) {
694 indices[idx++] = add_vertex(save, vertex_to_index, original_prims[i].start + j,
695 temp_vertices_buffer, &max_index);
700 /* Update vertex count. */
701 merged_prims[last_valid_prim].count += idx - start;
703 /* Keep this primitive */
704 last_valid_prim += 1;
705 assert(last_valid_prim <= i);
706 merged_prims = realloc(merged_prims, (1 + last_valid_prim) * sizeof(struct _mesa_prim));
707 merged_prims[last_valid_prim] = original_prims[i];
708 merged_prims[last_valid_prim].start = start;
709 merged_prims[last_valid_prim].count = idx - start;
711 merged_prims[last_valid_prim].mode = mode;
714 assert(idx > 0 && idx <= max_index_count);
716 unsigned merged_prim_count = last_valid_prim + 1;
717 node->cold->ib.ptr = NULL;
718 node->cold->ib.count = idx;
719 node->cold->ib.index_size_shift = (GL_UNSIGNED_INT - GL_UNSIGNED_BYTE) >> 1;
721 /* How many bytes do we need to store the indices and the vertices */
722 total_vert_count = vertex_to_index ? (max_index + 1) : idx;
723 unsigned total_bytes_needed = idx * sizeof(uint32_t) +
724 total_vert_count * save->vertex_size * sizeof(fi_type);
726 const GLintptr old_offset = save->VAO[0] ?
727 save->VAO[0]->BufferBinding[0].Offset + save->VAO[0]->VertexAttrib[VERT_ATTRIB_POS].RelativeOffset : 0;
728 if (old_offset != save->current_bo_bytes_used && stride > 0) {
729 GLintptr offset_diff = save->current_bo_bytes_used - old_offset;
730 while (offset_diff > 0 &&
731 save->current_bo_bytes_used < save->current_bo->Size &&
732 offset_diff % stride != 0) {
733 save->current_bo_bytes_used++;
734 offset_diff = save->current_bo_bytes_used - old_offset;
737 buffer_offset = save->current_bo_bytes_used;
739 /* Can we reuse the previous bo or should we allocate a new one? */
740 int available_bytes = save->current_bo ? save->current_bo->Size - save->current_bo_bytes_used : 0;
741 if (total_bytes_needed > available_bytes) {
742 if (save->current_bo)
743 _mesa_reference_buffer_object(ctx, &save->current_bo, NULL);
744 save->current_bo = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID + 1);
745 bool success = ctx->Driver.BufferData(ctx,
746 GL_ELEMENT_ARRAY_BUFFER_ARB,
747 MAX2(total_bytes_needed, VBO_SAVE_BUFFER_SIZE),
749 GL_STATIC_DRAW_ARB, GL_MAP_WRITE_BIT,
752 _mesa_reference_buffer_object(ctx, &save->current_bo, NULL);
753 _mesa_error(ctx, GL_OUT_OF_MEMORY, "IB allocation");
754 handle_out_of_memory(ctx);
756 save->current_bo_bytes_used = 0;
757 available_bytes = save->current_bo->Size;
761 assert(old_offset <= buffer_offset);
762 const GLintptr offset_diff = buffer_offset - old_offset;
763 if (offset_diff > 0 && stride > 0 && offset_diff % stride == 0) {
764 /* The vertex size is an exact multiple of the buffer offset.
765 * This means that we can use zero-based vertex attribute pointers
766 * and specify the start of the primitive with the _mesa_prim::start
767 * field. This results in issuing several draw calls with identical
768 * vertex attribute information. This can result in fewer state
769 * changes in drivers. In particular, the Gallium CSO module will
770 * filter out redundant vertex buffer changes.
772 /* We cannot immediately update the primitives as some methods below
773 * still need the uncorrected start vertices
775 start_offset = offset_diff/stride;
776 assert(old_offset == buffer_offset - offset_diff);
777 buffer_offset = old_offset;
780 /* Correct the primitive starts, we can only do this here as copy_vertices
781 * and convert_line_loop_to_strip above consume the uncorrected starts.
782 * On the other hand the _vbo_loopback_vertex_list call below needs the
783 * primitives to be corrected already.
785 for (unsigned i = 0; i < node->cold->prim_count; i++) {
786 node->cold->prims[i].start += start_offset;
788 /* start_offset shifts vertices (so v[0] becomes v[start_offset]), so we have
789 * to apply this transformation to all indices and max_index.
791 for (unsigned i = 0; i < idx; i++)
792 indices[i] += start_offset;
793 max_index += start_offset;
796 _mesa_reference_buffer_object(ctx, &node->cold->ib.obj, save->current_bo);
798 /* Upload the vertices first (see buffer_offset) */
799 ctx->Driver.BufferSubData(ctx,
800 save->current_bo_bytes_used,
801 total_vert_count * save->vertex_size * sizeof(fi_type),
802 vertex_to_index ? temp_vertices_buffer : save->vertex_store->buffer_in_ram,
804 save->current_bo_bytes_used += total_vert_count * save->vertex_size * sizeof(fi_type);
806 if (vertex_to_index) {
807 _mesa_hash_table_destroy(vertex_to_index, _free_entry);
808 free(temp_vertices_buffer);
811 /* Since we're append the indices to an existing buffer, we need to adjust the start value of each
812 * primitive (not the indices themselves). */
813 save->current_bo_bytes_used += align(save->current_bo_bytes_used, 4) - save->current_bo_bytes_used;
814 int indices_offset = save->current_bo_bytes_used / 4;
815 for (int i = 0; i < merged_prim_count; i++) {
816 merged_prims[i].start += indices_offset;
819 /* Then upload the indices. */
820 if (node->cold->ib.obj) {
821 ctx->Driver.BufferSubData(ctx,
822 save->current_bo_bytes_used,
823 idx * sizeof(uint32_t),
826 save->current_bo_bytes_used += idx * sizeof(uint32_t);
828 node->cold->vertex_count = 0;
829 node->cold->prim_count = 0;
832 /* Prepare for DrawGallium */
833 memset(&node->merged.info, 0, sizeof(struct pipe_draw_info));
834 /* The other info fields will be updated in vbo_save_playback_vertex_list */
835 node->merged.info.index_size = 4;
836 node->merged.info.instance_count = 1;
837 node->merged.info.index.gl_bo = node->cold->ib.obj;
838 if (merged_prim_count == 1) {
839 node->merged.info.mode = merged_prims[0].mode;
840 node->merged.start_count.start = merged_prims[0].start;
841 node->merged.start_count.count = merged_prims[0].count;
842 node->merged.start_count.index_bias = 0;
843 node->merged.mode = NULL;
845 node->merged.mode = malloc(merged_prim_count * sizeof(unsigned char));
846 node->merged.start_counts = malloc(merged_prim_count * sizeof(struct pipe_draw_start_count_bias));
847 for (unsigned i = 0; i < merged_prim_count; i++) {
848 node->merged.start_counts[i].start = merged_prims[i].start;
849 node->merged.start_counts[i].count = merged_prims[i].count;
850 node->merged.start_counts[i].index_bias = 0;
851 node->merged.mode[i] = merged_prims[i].mode;
854 node->merged.num_draws = merged_prim_count;
855 if (node->merged.num_draws > 1) {
856 bool same_mode = true;
857 for (unsigned i = 1; i < node->merged.num_draws && same_mode; i++) {
858 same_mode = node->merged.mode[i] == node->merged.mode[0];
861 /* All primitives use the same mode, so we can simplify a bit */
862 node->merged.info.mode = node->merged.mode[0];
863 free(node->merged.mode);
864 node->merged.mode = NULL;
873 if (!save->current_bo) {
874 save->current_bo = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID + 1);
875 bool success = ctx->Driver.BufferData(ctx,
876 GL_ELEMENT_ARRAY_BUFFER_ARB,
877 VBO_SAVE_BUFFER_SIZE,
879 GL_STATIC_DRAW_ARB, GL_MAP_WRITE_BIT,
882 handle_out_of_memory(ctx);
885 GLuint offsets[VBO_ATTRIB_MAX];
886 for (unsigned i = 0, offset = 0; i < VBO_ATTRIB_MAX; ++i) {
888 offset += save->attrsz[i] * sizeof(GLfloat);
890 /* Create a pair of VAOs for the possible VERTEX_PROCESSING_MODEs
891 * Note that this may reuse the previous one of possible.
893 for (gl_vertex_processing_mode vpm = VP_MODE_FF; vpm < VP_MODE_MAX; ++vpm) {
894 /* create or reuse the vao */
895 update_vao(ctx, vpm, &save->VAO[vpm],
896 save->current_bo, buffer_offset, stride,
897 save->enabled, save->attrsz, save->attrtype, offsets);
898 /* Reference the vao in the dlist */
899 node->VAO[vpm] = NULL;
900 _mesa_reference_vao(ctx, &node->VAO[vpm], save->VAO[vpm]);
904 /* Deal with GL_COMPILE_AND_EXECUTE:
906 if (ctx->ExecuteFlag) {
907 struct _glapi_table *dispatch = GET_DISPATCH();
909 _glapi_set_dispatch(ctx->Exec);
911 /* _vbo_loopback_vertex_list doesn't use the index buffer, so we have to
912 * use buffer_in_ram instead of current_bo which contains all vertices instead
913 * of the deduplicated vertices only in the !UseLoopback case.
915 * The problem is that the VAO offset is based on current_bo's layout,
916 * so we have to use a temp value.
918 struct gl_vertex_array_object *vao = node->VAO[VP_MODE_SHADER];
919 GLintptr original = vao->BufferBinding[0].Offset;
920 if (!ctx->ListState.Current.UseLoopback) {
921 GLintptr new_offset = 0;
922 /* 'start_offset' has been added to all primitives 'start', so undo it here. */
923 new_offset -= start_offset * stride;
924 vao->BufferBinding[0].Offset = new_offset;
926 _vbo_loopback_vertex_list(ctx, node, save->vertex_store->buffer_in_ram);
927 vao->BufferBinding[0].Offset = original;
929 _glapi_set_dispatch(dispatch);
932 /* Reset our structures for the next run of vertices:
939 * This is called when we fill a vertex buffer before we hit a glEnd().
941 * TODO -- If no new vertices have been stored, don't bother saving it.
944 wrap_buffers(struct gl_context *ctx)
946 struct vbo_save_context *save = &vbo_context(ctx)->save;
947 GLint i = save->prim_store->used - 1;
950 assert(i < (GLint) save->prim_store->size);
953 /* Close off in-progress primitive.
955 save->prim_store->prims[i].count = (get_vertex_count(save) - save->prim_store->prims[i].start);
956 mode = save->prim_store->prims[i].mode;
958 /* store the copied vertices, and allocate a new list.
960 compile_vertex_list(ctx);
962 /* Restart interrupted primitive
964 save->prim_store->prims[0].mode = mode;
965 save->prim_store->prims[0].begin = 0;
966 save->prim_store->prims[0].end = 0;
967 save->prim_store->prims[0].start = 0;
968 save->prim_store->prims[0].count = 0;
969 save->prim_store->used = 1;
974 * Called only when buffers are wrapped as the result of filling the
975 * vertex_store struct.
978 wrap_filled_vertex(struct gl_context *ctx)
980 struct vbo_save_context *save = &vbo_context(ctx)->save;
981 unsigned numComponents;
983 /* Emit a glEnd to close off the last vertex list.
987 assert(save->vertex_store->used == 0 && save->vertex_store->used == 0);
989 /* Copy stored stored vertices to start of new list.
991 numComponents = save->copied.nr * save->vertex_size;
993 fi_type *buffer_ptr = save->vertex_store->buffer_in_ram;
995 assert(save->copied.buffer);
998 numComponents * sizeof(fi_type));
999 free(save->copied.buffer);
1000 save->copied.buffer = NULL;
1002 save->vertex_store->used = numComponents;
1007 copy_to_current(struct gl_context *ctx)
1009 struct vbo_save_context *save = &vbo_context(ctx)->save;
1010 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
1013 const int i = u_bit_scan64(&enabled);
1014 assert(save->attrsz[i]);
1016 if (save->attrtype[i] == GL_DOUBLE ||
1017 save->attrtype[i] == GL_UNSIGNED_INT64_ARB)
1018 memcpy(save->current[i], save->attrptr[i], save->attrsz[i] * sizeof(GLfloat));
1020 COPY_CLEAN_4V_TYPE_AS_UNION(save->current[i], save->attrsz[i],
1021 save->attrptr[i], save->attrtype[i]);
1027 copy_from_current(struct gl_context *ctx)
1029 struct vbo_save_context *save = &vbo_context(ctx)->save;
1030 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
1033 const int i = u_bit_scan64(&enabled);
1035 switch (save->attrsz[i]) {
1037 save->attrptr[i][3] = save->current[i][3];
1040 save->attrptr[i][2] = save->current[i][2];
1043 save->attrptr[i][1] = save->current[i][1];
1046 save->attrptr[i][0] = save->current[i][0];
1049 unreachable("Unexpected vertex attribute size");
1056 * Called when we increase the size of a vertex attribute. For example,
1057 * if we've seen one or more glTexCoord2f() calls and now we get a
1058 * glTexCoord3f() call.
1059 * Flush existing data, set new attrib size, replay copied vertices.
1062 upgrade_vertex(struct gl_context *ctx, GLuint attr, GLuint newsz)
1064 struct vbo_save_context *save = &vbo_context(ctx)->save;
1069 /* Store the current run of vertices, and emit a GL_END. Emit a
1070 * BEGIN in the new buffer.
1072 if (save->vertex_store->used)
1075 assert(save->copied.nr == 0);
1077 /* Do a COPY_TO_CURRENT to ensure back-copying works for the case
1078 * when the attribute already exists in the vertex and is having
1079 * its size increased.
1081 copy_to_current(ctx);
1085 oldsz = save->attrsz[attr];
1086 save->attrsz[attr] = newsz;
1087 save->enabled |= BITFIELD64_BIT(attr);
1089 save->vertex_size += newsz - oldsz;
1091 /* Recalculate all the attrptr[] values:
1094 for (i = 0; i < VBO_ATTRIB_MAX; i++) {
1095 if (save->attrsz[i]) {
1096 save->attrptr[i] = tmp;
1097 tmp += save->attrsz[i];
1100 save->attrptr[i] = NULL; /* will not be dereferenced. */
1104 /* Copy from current to repopulate the vertex with correct values.
1106 copy_from_current(ctx);
1108 /* Replay stored vertices to translate them to new format here.
1110 * If there are copied vertices and the new (upgraded) attribute
1111 * has not been defined before, this list is somewhat degenerate,
1112 * and will need fixup at runtime.
1114 if (save->copied.nr) {
1115 assert(save->copied.buffer);
1116 const fi_type *data = save->copied.buffer;
1117 fi_type *dest = save->vertex_store->buffer_in_ram;
1119 /* Need to note this and fix up at runtime (or loopback):
1121 if (attr != VBO_ATTRIB_POS && save->currentsz[attr][0] == 0) {
1123 save->dangling_attr_ref = GL_TRUE;
1126 for (i = 0; i < save->copied.nr; i++) {
1127 GLbitfield64 enabled = save->enabled;
1129 const int j = u_bit_scan64(&enabled);
1130 assert(save->attrsz[j]);
1133 COPY_CLEAN_4V_TYPE_AS_UNION(dest, oldsz, data,
1139 COPY_SZ_4V(dest, newsz, save->current[attr]);
1144 GLint sz = save->attrsz[j];
1145 COPY_SZ_4V(dest, sz, data);
1152 save->vertex_store->used += save->vertex_size * save->copied.nr;
1153 free(save->copied.buffer);
1154 save->copied.buffer = NULL;
1160 * This is called when the size of a vertex attribute changes.
1161 * For example, after seeing one or more glTexCoord2f() calls we
1162 * get a glTexCoord4f() or glTexCoord1f() call.
1165 fixup_vertex(struct gl_context *ctx, GLuint attr,
1166 GLuint sz, GLenum newType)
1168 struct vbo_save_context *save = &vbo_context(ctx)->save;
1170 if (sz > save->attrsz[attr] ||
1171 newType != save->attrtype[attr]) {
1172 /* New size is larger. Need to flush existing vertices and get
1173 * an enlarged vertex format.
1175 upgrade_vertex(ctx, attr, sz);
1177 else if (sz < save->active_sz[attr]) {
1179 const fi_type *id = vbo_get_default_vals_as_union(save->attrtype[attr]);
1181 /* New size is equal or smaller - just need to fill in some
1184 for (i = sz; i <= save->attrsz[attr]; i++)
1185 save->attrptr[attr][i - 1] = id[i - 1];
1188 save->active_sz[attr] = sz;
1190 grow_vertex_storage(ctx, 1);
1195 * Reset the current size of all vertex attributes to the default
1196 * value of 0. This signals that we haven't yet seen any per-vertex
1197 * commands such as glNormal3f() or glTexCoord2f().
1200 reset_vertex(struct gl_context *ctx)
1202 struct vbo_save_context *save = &vbo_context(ctx)->save;
1204 while (save->enabled) {
1205 const int i = u_bit_scan64(&save->enabled);
1206 assert(save->attrsz[i]);
1207 save->attrsz[i] = 0;
1208 save->active_sz[i] = 0;
1211 save->vertex_size = 0;
1216 * If index=0, does glVertexAttrib*() alias glVertex() to emit a vertex?
1217 * It depends on a few things, including whether we're inside or outside
1221 is_vertex_position(const struct gl_context *ctx, GLuint index)
1223 return (index == 0 &&
1224 _mesa_attr_zero_aliases_vertex(ctx) &&
1225 _mesa_inside_dlist_begin_end(ctx));
1230 #define ERROR(err) _mesa_compile_error(ctx, err, __func__);
1233 /* Only one size for each attribute may be active at once. Eg. if
1234 * Color3f is installed/active, then Color4f may not be, even if the
1235 * vertex actually contains 4 color coordinates. This is because the
1236 * 3f version won't otherwise set color[3] to 1.0 -- this is the job
1237 * of the chooser function when switching between Color4f and Color3f.
1239 #define ATTR_UNION(A, N, T, C, V0, V1, V2, V3) \
1241 struct vbo_save_context *save = &vbo_context(ctx)->save; \
1242 int sz = (sizeof(C) / sizeof(GLfloat)); \
1244 if (save->active_sz[A] != N) \
1245 fixup_vertex(ctx, A, N * sz, T); \
1248 C *dest = (C *)save->attrptr[A]; \
1249 if (N>0) dest[0] = V0; \
1250 if (N>1) dest[1] = V1; \
1251 if (N>2) dest[2] = V2; \
1252 if (N>3) dest[3] = V3; \
1253 save->attrtype[A] = T; \
1258 fi_type *buffer_ptr = save->vertex_store->buffer_in_ram + save->vertex_store->used; \
1260 for (i = 0; i < save->vertex_size; i++) \
1261 buffer_ptr[i] = save->vertex[i]; \
1263 save->vertex_store->used += save->vertex_size; \
1264 if ((save->vertex_store->used + save->vertex_size) * sizeof(float) > \
1265 save->vertex_store->buffer_in_ram_size) { \
1266 grow_vertex_storage(ctx, get_vertex_count(save)); \
1267 assert((save->vertex_store->used + save->vertex_size) * sizeof(float) <= \
1268 save->vertex_store->buffer_in_ram_size); \
1273 #define TAG(x) _save_##x
1275 #include "vbo_attrib_tmp.h"
1279 #define MAT( ATTR, N, face, params ) \
1281 if (face != GL_BACK) \
1282 MAT_ATTR( ATTR, N, params ); /* front */ \
1283 if (face != GL_FRONT) \
1284 MAT_ATTR( ATTR + 1, N, params ); /* back */ \
1289 * Save a glMaterial call found between glBegin/End.
1290 * glMaterial calls outside Begin/End are handled in dlist.c.
1292 static void GLAPIENTRY
1293 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params)
1295 GET_CURRENT_CONTEXT(ctx);
1297 if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
1298 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(face)");
1304 MAT(VBO_ATTRIB_MAT_FRONT_EMISSION, 4, face, params);
1307 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1310 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1313 MAT(VBO_ATTRIB_MAT_FRONT_SPECULAR, 4, face, params);
1316 if (*params < 0 || *params > ctx->Const.MaxShininess) {
1317 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glMaterial(shininess)");
1320 MAT(VBO_ATTRIB_MAT_FRONT_SHININESS, 1, face, params);
1323 case GL_COLOR_INDEXES:
1324 MAT(VBO_ATTRIB_MAT_FRONT_INDEXES, 3, face, params);
1326 case GL_AMBIENT_AND_DIFFUSE:
1327 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1328 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1331 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(pname)");
1337 /* Cope with EvalCoord/CallList called within a begin/end object:
1338 * -- Flush current buffer
1339 * -- Fallback to opcodes for the rest of the begin/end object.
1342 dlist_fallback(struct gl_context *ctx)
1344 struct vbo_save_context *save = &vbo_context(ctx)->save;
1346 if (save->vertex_store->used || save->prim_store->used) {
1347 if (save->prim_store->used > 0 && save->vertex_store->used > 0) {
1348 assert(save->vertex_size);
1349 /* Close off in-progress primitive. */
1350 GLint i = save->prim_store->used - 1;
1351 save->prim_store->prims[i].count =
1352 get_vertex_count(save) -
1353 save->prim_store->prims[i].start;
1356 /* Need to replay this display list with loopback,
1357 * unfortunately, otherwise this primitive won't be handled
1360 save->dangling_attr_ref = GL_TRUE;
1362 compile_vertex_list(ctx);
1365 copy_to_current(ctx);
1367 if (save->out_of_memory) {
1368 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
1371 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1373 ctx->Driver.SaveNeedFlush = GL_FALSE;
1377 static void GLAPIENTRY
1378 _save_EvalCoord1f(GLfloat u)
1380 GET_CURRENT_CONTEXT(ctx);
1381 dlist_fallback(ctx);
1382 CALL_EvalCoord1f(ctx->Save, (u));
1385 static void GLAPIENTRY
1386 _save_EvalCoord1fv(const GLfloat * v)
1388 GET_CURRENT_CONTEXT(ctx);
1389 dlist_fallback(ctx);
1390 CALL_EvalCoord1fv(ctx->Save, (v));
1393 static void GLAPIENTRY
1394 _save_EvalCoord2f(GLfloat u, GLfloat v)
1396 GET_CURRENT_CONTEXT(ctx);
1397 dlist_fallback(ctx);
1398 CALL_EvalCoord2f(ctx->Save, (u, v));
1401 static void GLAPIENTRY
1402 _save_EvalCoord2fv(const GLfloat * v)
1404 GET_CURRENT_CONTEXT(ctx);
1405 dlist_fallback(ctx);
1406 CALL_EvalCoord2fv(ctx->Save, (v));
1409 static void GLAPIENTRY
1410 _save_EvalPoint1(GLint i)
1412 GET_CURRENT_CONTEXT(ctx);
1413 dlist_fallback(ctx);
1414 CALL_EvalPoint1(ctx->Save, (i));
1417 static void GLAPIENTRY
1418 _save_EvalPoint2(GLint i, GLint j)
1420 GET_CURRENT_CONTEXT(ctx);
1421 dlist_fallback(ctx);
1422 CALL_EvalPoint2(ctx->Save, (i, j));
1425 static void GLAPIENTRY
1426 _save_CallList(GLuint l)
1428 GET_CURRENT_CONTEXT(ctx);
1429 dlist_fallback(ctx);
1430 CALL_CallList(ctx->Save, (l));
1433 static void GLAPIENTRY
1434 _save_CallLists(GLsizei n, GLenum type, const GLvoid * v)
1436 GET_CURRENT_CONTEXT(ctx);
1437 dlist_fallback(ctx);
1438 CALL_CallLists(ctx->Save, (n, type, v));
1444 * Called when a glBegin is getting compiled into a display list.
1445 * Updating of ctx->Driver.CurrentSavePrimitive is already taken care of.
1448 vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode,
1449 bool no_current_update)
1451 struct vbo_save_context *save = &vbo_context(ctx)->save;
1452 const GLuint i = save->prim_store->used++;
1454 ctx->Driver.CurrentSavePrimitive = mode;
1456 if (!save->prim_store || i >= save->prim_store->size) {
1457 save->prim_store = realloc_prim_store(save->prim_store, i * 2);
1459 save->prim_store->prims[i].mode = mode & VBO_SAVE_PRIM_MODE_MASK;
1460 save->prim_store->prims[i].begin = 1;
1461 save->prim_store->prims[i].end = 0;
1462 save->prim_store->prims[i].start = get_vertex_count(save);
1463 save->prim_store->prims[i].count = 0;
1465 save->no_current_update = no_current_update;
1467 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
1469 /* We need to call vbo_save_SaveFlushVertices() if there's state change */
1470 ctx->Driver.SaveNeedFlush = GL_TRUE;
1474 static void GLAPIENTRY
1477 GET_CURRENT_CONTEXT(ctx);
1478 struct vbo_save_context *save = &vbo_context(ctx)->save;
1479 const GLint i = save->prim_store->used - 1;
1481 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1482 save->prim_store->prims[i].end = 1;
1483 save->prim_store->prims[i].count = (get_vertex_count(save) - save->prim_store->prims[i].start);
1485 /* Swap out this vertex format while outside begin/end. Any color,
1486 * etc. received between here and the next begin will be compiled
1489 if (save->out_of_memory) {
1490 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
1493 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1498 static void GLAPIENTRY
1499 _save_Begin(GLenum mode)
1501 GET_CURRENT_CONTEXT(ctx);
1503 _mesa_compile_error(ctx, GL_INVALID_OPERATION, "Recursive glBegin");
1507 static void GLAPIENTRY
1508 _save_PrimitiveRestartNV(void)
1510 GET_CURRENT_CONTEXT(ctx);
1511 struct vbo_save_context *save = &vbo_context(ctx)->save;
1513 if (save->prim_store->used == 0) {
1514 /* We're not inside a glBegin/End pair, so calling glPrimitiverRestartNV
1517 _mesa_compile_error(ctx, GL_INVALID_OPERATION,
1518 "glPrimitiveRestartNV called outside glBegin/End");
1520 /* get current primitive mode */
1521 GLenum curPrim = save->prim_store->prims[save->prim_store->used - 1].mode;
1522 bool no_current_update = save->no_current_update;
1524 /* restart primitive */
1525 CALL_End(ctx->CurrentServerDispatch, ());
1526 vbo_save_NotifyBegin(ctx, curPrim, no_current_update);
1531 /* Unlike the functions above, these are to be hooked into the vtxfmt
1532 * maintained in ctx->ListState, active when the list is known or
1533 * suspected to be outside any begin/end primitive.
1534 * Note: OBE = Outside Begin/End
1536 static void GLAPIENTRY
1537 _save_OBE_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
1539 GET_CURRENT_CONTEXT(ctx);
1540 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1542 vbo_save_NotifyBegin(ctx, GL_QUADS, false);
1543 CALL_Vertex2f(dispatch, (x1, y1));
1544 CALL_Vertex2f(dispatch, (x2, y1));
1545 CALL_Vertex2f(dispatch, (x2, y2));
1546 CALL_Vertex2f(dispatch, (x1, y2));
1547 CALL_End(dispatch, ());
1551 static void GLAPIENTRY
1552 _save_OBE_Rectd(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2)
1554 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1557 static void GLAPIENTRY
1558 _save_OBE_Rectdv(const GLdouble *v1, const GLdouble *v2)
1560 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1563 static void GLAPIENTRY
1564 _save_OBE_Rectfv(const GLfloat *v1, const GLfloat *v2)
1566 _save_OBE_Rectf(v1[0], v1[1], v2[0], v2[1]);
1569 static void GLAPIENTRY
1570 _save_OBE_Recti(GLint x1, GLint y1, GLint x2, GLint y2)
1572 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1575 static void GLAPIENTRY
1576 _save_OBE_Rectiv(const GLint *v1, const GLint *v2)
1578 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1581 static void GLAPIENTRY
1582 _save_OBE_Rects(GLshort x1, GLshort y1, GLshort x2, GLshort y2)
1584 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1587 static void GLAPIENTRY
1588 _save_OBE_Rectsv(const GLshort *v1, const GLshort *v2)
1590 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1593 static void GLAPIENTRY
1594 _save_OBE_DrawArrays(GLenum mode, GLint start, GLsizei count)
1596 GET_CURRENT_CONTEXT(ctx);
1597 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1598 struct vbo_save_context *save = &vbo_context(ctx)->save;
1601 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1602 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)");
1606 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawArrays(count<0)");
1610 if (save->out_of_memory)
1613 grow_vertex_storage(ctx, count);
1615 /* Make sure to process any VBO binding changes */
1616 _mesa_update_state(ctx);
1618 _mesa_vao_map_arrays(ctx, vao, GL_MAP_READ_BIT);
1620 vbo_save_NotifyBegin(ctx, mode, true);
1622 for (i = 0; i < count; i++)
1623 _mesa_array_element(ctx, start + i);
1624 CALL_End(ctx->CurrentServerDispatch, ());
1626 _mesa_vao_unmap_arrays(ctx, vao);
1630 static void GLAPIENTRY
1631 _save_OBE_MultiDrawArrays(GLenum mode, const GLint *first,
1632 const GLsizei *count, GLsizei primcount)
1634 GET_CURRENT_CONTEXT(ctx);
1637 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1638 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMultiDrawArrays(mode)");
1642 if (primcount < 0) {
1643 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1644 "glMultiDrawArrays(primcount<0)");
1648 unsigned vertcount = 0;
1649 for (i = 0; i < primcount; i++) {
1651 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1652 "glMultiDrawArrays(count[i]<0)");
1655 vertcount += count[i];
1658 grow_vertex_storage(ctx, vertcount);
1660 for (i = 0; i < primcount; i++) {
1662 _save_OBE_DrawArrays(mode, first[i], count[i]);
1669 array_element(struct gl_context *ctx,
1670 GLint basevertex, GLuint elt, unsigned index_size_shift)
1672 /* Section 10.3.5 Primitive Restart:
1674 * When one of the *BaseVertex drawing commands specified in section 10.5
1675 * is used, the primitive restart comparison occurs before the basevertex
1676 * offset is added to the array index.
1678 /* If PrimitiveRestart is enabled and the index is the RestartIndex
1679 * then we call PrimitiveRestartNV and return.
1681 if (ctx->Array._PrimitiveRestart[index_size_shift] &&
1682 elt == ctx->Array._RestartIndex[index_size_shift]) {
1683 CALL_PrimitiveRestartNV(ctx->CurrentServerDispatch, ());
1687 _mesa_array_element(ctx, basevertex + elt);
1691 /* Could do better by copying the arrays and element list intact and
1692 * then emitting an indexed prim at runtime.
1694 static void GLAPIENTRY
1695 _save_OBE_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
1696 const GLvoid * indices, GLint basevertex)
1698 GET_CURRENT_CONTEXT(ctx);
1699 struct vbo_save_context *save = &vbo_context(ctx)->save;
1700 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1701 struct gl_buffer_object *indexbuf = vao->IndexBufferObj;
1704 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1705 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawElements(mode)");
1709 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1712 if (type != GL_UNSIGNED_BYTE &&
1713 type != GL_UNSIGNED_SHORT &&
1714 type != GL_UNSIGNED_INT) {
1715 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1719 if (save->out_of_memory)
1722 grow_vertex_storage(ctx, count);
1724 /* Make sure to process any VBO binding changes */
1725 _mesa_update_state(ctx);
1727 _mesa_vao_map(ctx, vao, GL_MAP_READ_BIT);
1731 ADD_POINTERS(indexbuf->Mappings[MAP_INTERNAL].Pointer, indices);
1733 vbo_save_NotifyBegin(ctx, mode, true);
1736 case GL_UNSIGNED_BYTE:
1737 for (i = 0; i < count; i++)
1738 array_element(ctx, basevertex, ((GLubyte *) indices)[i], 0);
1740 case GL_UNSIGNED_SHORT:
1741 for (i = 0; i < count; i++)
1742 array_element(ctx, basevertex, ((GLushort *) indices)[i], 1);
1744 case GL_UNSIGNED_INT:
1745 for (i = 0; i < count; i++)
1746 array_element(ctx, basevertex, ((GLuint *) indices)[i], 2);
1749 _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)");
1753 CALL_End(ctx->CurrentServerDispatch, ());
1755 _mesa_vao_unmap(ctx, vao);
1758 static void GLAPIENTRY
1759 _save_OBE_DrawElements(GLenum mode, GLsizei count, GLenum type,
1760 const GLvoid * indices)
1762 _save_OBE_DrawElementsBaseVertex(mode, count, type, indices, 0);
1766 static void GLAPIENTRY
1767 _save_OBE_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
1768 GLsizei count, GLenum type,
1769 const GLvoid * indices)
1771 GET_CURRENT_CONTEXT(ctx);
1772 struct vbo_save_context *save = &vbo_context(ctx)->save;
1774 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1775 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)");
1779 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1780 "glDrawRangeElements(count<0)");
1783 if (type != GL_UNSIGNED_BYTE &&
1784 type != GL_UNSIGNED_SHORT &&
1785 type != GL_UNSIGNED_INT) {
1786 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(type)");
1790 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1791 "glDrawRangeElements(end < start)");
1795 if (save->out_of_memory)
1798 _save_OBE_DrawElements(mode, count, type, indices);
1802 static void GLAPIENTRY
1803 _save_OBE_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type,
1804 const GLvoid * const *indices, GLsizei primcount)
1806 GET_CURRENT_CONTEXT(ctx);
1807 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1811 for (i = 0; i < primcount; i++) {
1812 vertcount += count[i];
1814 grow_vertex_storage(ctx, vertcount);
1816 for (i = 0; i < primcount; i++) {
1818 CALL_DrawElements(dispatch, (mode, count[i], type, indices[i]));
1824 static void GLAPIENTRY
1825 _save_OBE_MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count,
1827 const GLvoid * const *indices,
1829 const GLint *basevertex)
1831 GET_CURRENT_CONTEXT(ctx);
1832 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1836 for (i = 0; i < primcount; i++) {
1837 vertcount += count[i];
1839 grow_vertex_storage(ctx, vertcount);
1841 for (i = 0; i < primcount; i++) {
1843 CALL_DrawElementsBaseVertex(dispatch, (mode, count[i], type,
1852 vtxfmt_init(struct gl_context *ctx)
1854 struct vbo_save_context *save = &vbo_context(ctx)->save;
1855 GLvertexformat *vfmt = &save->vtxfmt;
1857 #define NAME_AE(x) _ae_##x
1858 #define NAME_CALLLIST(x) _save_##x
1859 #define NAME(x) _save_##x
1860 #define NAME_ES(x) _save_##x##ARB
1862 #include "vbo_init_tmp.h"
1867 * Initialize the dispatch table with the VBO functions for display
1871 vbo_initialize_save_dispatch(const struct gl_context *ctx,
1872 struct _glapi_table *exec)
1874 SET_DrawArrays(exec, _save_OBE_DrawArrays);
1875 SET_MultiDrawArrays(exec, _save_OBE_MultiDrawArrays);
1876 SET_DrawElements(exec, _save_OBE_DrawElements);
1877 SET_DrawElementsBaseVertex(exec, _save_OBE_DrawElementsBaseVertex);
1878 SET_DrawRangeElements(exec, _save_OBE_DrawRangeElements);
1879 SET_MultiDrawElementsEXT(exec, _save_OBE_MultiDrawElements);
1880 SET_MultiDrawElementsBaseVertex(exec, _save_OBE_MultiDrawElementsBaseVertex);
1881 SET_Rectf(exec, _save_OBE_Rectf);
1882 SET_Rectd(exec, _save_OBE_Rectd);
1883 SET_Rectdv(exec, _save_OBE_Rectdv);
1884 SET_Rectfv(exec, _save_OBE_Rectfv);
1885 SET_Recti(exec, _save_OBE_Recti);
1886 SET_Rectiv(exec, _save_OBE_Rectiv);
1887 SET_Rects(exec, _save_OBE_Rects);
1888 SET_Rectsv(exec, _save_OBE_Rectsv);
1890 /* Note: other glDraw functins aren't compiled into display lists */
1896 vbo_save_SaveFlushVertices(struct gl_context *ctx)
1898 struct vbo_save_context *save = &vbo_context(ctx)->save;
1900 /* Noop when we are actually active:
1902 if (ctx->Driver.CurrentSavePrimitive <= PRIM_MAX)
1905 if (save->vertex_store->used || save->prim_store->used)
1906 compile_vertex_list(ctx);
1908 copy_to_current(ctx);
1910 ctx->Driver.SaveNeedFlush = GL_FALSE;
1915 * Called from glNewList when we're starting to compile a display list.
1918 vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode)
1920 struct vbo_save_context *save = &vbo_context(ctx)->save;
1925 if (!save->prim_store)
1926 save->prim_store = realloc_prim_store(NULL, 8);
1928 if (!save->vertex_store)
1929 save->vertex_store = CALLOC_STRUCT(vbo_save_vertex_store);
1932 ctx->Driver.SaveNeedFlush = GL_FALSE;
1937 * Called from glEndList when we're finished compiling a display list.
1940 vbo_save_EndList(struct gl_context *ctx)
1942 struct vbo_save_context *save = &vbo_context(ctx)->save;
1944 /* EndList called inside a (saved) Begin/End pair?
1946 if (_mesa_inside_dlist_begin_end(ctx)) {
1947 if (save->prim_store->used > 0) {
1948 GLint i = save->prim_store->used - 1;
1949 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1950 save->prim_store->prims[i].end = 0;
1951 save->prim_store->prims[i].count = get_vertex_count(save) - save->prim_store->prims[i].start;
1954 /* Make sure this vertex list gets replayed by the "loopback"
1957 save->dangling_attr_ref = GL_TRUE;
1958 vbo_save_SaveFlushVertices(ctx);
1960 /* Swap out this vertex format while outside begin/end. Any color,
1961 * etc. received between here and the next begin will be compiled
1964 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1967 assert(save->vertex_size == 0);
1971 * Called during context creation/init.
1974 current_init(struct gl_context *ctx)
1976 struct vbo_save_context *save = &vbo_context(ctx)->save;
1979 for (i = VBO_ATTRIB_POS; i <= VBO_ATTRIB_EDGEFLAG; i++) {
1980 const GLuint j = i - VBO_ATTRIB_POS;
1981 assert(j < VERT_ATTRIB_MAX);
1982 save->currentsz[i] = &ctx->ListState.ActiveAttribSize[j];
1983 save->current[i] = (fi_type *) ctx->ListState.CurrentAttrib[j];
1986 for (i = VBO_ATTRIB_FIRST_MATERIAL; i <= VBO_ATTRIB_LAST_MATERIAL; i++) {
1987 const GLuint j = i - VBO_ATTRIB_FIRST_MATERIAL;
1988 assert(j < MAT_ATTRIB_MAX);
1989 save->currentsz[i] = &ctx->ListState.ActiveMaterialSize[j];
1990 save->current[i] = (fi_type *) ctx->ListState.CurrentMaterial[j];
1996 * Initialize the display list compiler. Called during context creation.
1999 vbo_save_api_init(struct vbo_save_context *save)
2001 struct gl_context *ctx = gl_context_from_vbo_save(save);