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
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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
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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"
87 #include "gallium/include/pipe/p_state.h"
90 #include "vbo_private.h"
98 * Display list flag only used by this VBO code.
100 #define DLIST_DANGLING_REFS 0x1
103 /* An interesting VBO number/name to help with debugging */
104 #define VBO_BUF_ID 12345
106 static void GLAPIENTRY
107 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params);
109 static void GLAPIENTRY
110 _save_EvalCoord1f(GLfloat u);
112 static void GLAPIENTRY
113 _save_EvalCoord2f(GLfloat u, GLfloat v);
116 * NOTE: Old 'parity' issue is gone, but copying can still be
117 * wrong-footed on replay.
120 copy_vertices(struct gl_context *ctx,
121 const struct vbo_save_vertex_list *node,
122 const fi_type * src_buffer)
124 struct vbo_save_context *save = &vbo_context(ctx)->save;
125 struct _mesa_prim *prim = &node->prims[node->prim_count - 1];
126 GLuint sz = save->vertex_size;
127 const fi_type *src = src_buffer + prim->start * sz;
128 fi_type *dst = save->copied.buffer;
133 return vbo_copy_vertices(ctx, prim->mode, prim->start, &prim->count,
134 prim->begin, sz, true, dst, src);
138 static struct vbo_save_vertex_store *
139 alloc_vertex_store(struct gl_context *ctx, int vertex_count)
141 struct vbo_save_context *save = &vbo_context(ctx)->save;
142 struct vbo_save_vertex_store *vertex_store =
143 CALLOC_STRUCT(vbo_save_vertex_store);
145 int size = MAX2(vertex_count * save->vertex_size, VBO_SAVE_BUFFER_SIZE);
147 /* obj->Name needs to be non-zero, but won't ever be examined more
148 * closely than that. In particular these buffers won't be entered
149 * into the hash and can never be confused with ones visible to the
150 * user. Perhaps there could be a special number for internal
153 vertex_store->bufferobj = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID);
154 if (vertex_store->bufferobj) {
155 save->out_of_memory =
156 !ctx->Driver.BufferData(ctx,
158 size * sizeof(GLfloat),
159 NULL, GL_STATIC_DRAW_ARB,
161 GL_DYNAMIC_STORAGE_BIT,
162 vertex_store->bufferobj);
165 save->out_of_memory = GL_TRUE;
168 if (save->out_of_memory) {
169 _mesa_error(ctx, GL_OUT_OF_MEMORY, "internal VBO allocation");
170 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
173 vertex_store->buffer_map = NULL;
174 vertex_store->used = 0;
181 free_vertex_store(struct gl_context *ctx,
182 struct vbo_save_vertex_store *vertex_store)
184 assert(!vertex_store->buffer_map);
186 if (vertex_store->bufferobj) {
187 _mesa_reference_buffer_object(ctx, &vertex_store->bufferobj, NULL);
195 vbo_save_map_vertex_store(struct gl_context *ctx,
196 struct vbo_save_vertex_store *vertex_store)
198 const GLbitfield access = (GL_MAP_WRITE_BIT |
199 GL_MAP_INVALIDATE_RANGE_BIT |
200 GL_MAP_UNSYNCHRONIZED_BIT |
201 GL_MAP_FLUSH_EXPLICIT_BIT |
204 assert(vertex_store->bufferobj);
205 assert(!vertex_store->buffer_map); /* the buffer should not be mapped */
207 if (vertex_store->bufferobj->Size > 0) {
208 /* Map the remaining free space in the VBO */
209 GLintptr offset = vertex_store->used * sizeof(GLfloat);
210 GLsizeiptr size = vertex_store->bufferobj->Size - offset;
211 fi_type *range = (fi_type *)
212 ctx->Driver.MapBufferRange(ctx, offset, size, access,
213 vertex_store->bufferobj,
216 /* compute address of start of whole buffer (needed elsewhere) */
217 vertex_store->buffer_map = range - vertex_store->used;
218 assert(vertex_store->buffer_map);
222 vertex_store->buffer_map = NULL;
227 /* probably ran out of memory for buffers */
234 vbo_save_unmap_vertex_store(struct gl_context *ctx,
235 struct vbo_save_vertex_store *vertex_store)
237 if (vertex_store->bufferobj->Size > 0) {
239 GLsizeiptr length = vertex_store->used * sizeof(GLfloat)
240 - vertex_store->bufferobj->Mappings[MAP_INTERNAL].Offset;
242 /* Explicitly flush the region we wrote to */
243 ctx->Driver.FlushMappedBufferRange(ctx, offset, length,
244 vertex_store->bufferobj,
247 ctx->Driver.UnmapBuffer(ctx, vertex_store->bufferobj, MAP_INTERNAL);
249 vertex_store->buffer_map = NULL;
253 static struct vbo_save_primitive_store *
254 alloc_prim_store(int prim_count)
256 struct vbo_save_primitive_store *store =
257 CALLOC_STRUCT(vbo_save_primitive_store);
258 store->size = MAX2(prim_count, VBO_SAVE_PRIM_SIZE);
259 store->prims = calloc(store->size, sizeof(struct _mesa_prim));
267 reset_counters(struct gl_context *ctx)
269 struct vbo_save_context *save = &vbo_context(ctx)->save;
271 save->prims = save->prim_store->prims + save->prim_store->used;
272 save->buffer_map = save->vertex_store->buffer_map + save->vertex_store->used;
274 assert(save->buffer_map == save->buffer_ptr);
276 if (save->vertex_size)
277 save->max_vert = (save->vertex_store->bufferobj->Size / sizeof(float) - save->vertex_store->used) /
282 save->vert_count = 0;
283 save->prim_count = 0;
284 save->prim_max = save->prim_store->size - save->prim_store->used;
285 save->dangling_attr_ref = GL_FALSE;
289 * For a list of prims, try merging prims that can just be extensions of the
293 merge_prims(struct gl_context *ctx, struct _mesa_prim *prim_list,
297 struct _mesa_prim *prev_prim = prim_list;
299 for (i = 1; i < *prim_count; i++) {
300 struct _mesa_prim *this_prim = prim_list + i;
302 vbo_try_prim_conversion(&this_prim->mode, &this_prim->count);
304 if (vbo_merge_draws(ctx, true,
305 prev_prim->mode, this_prim->mode,
306 prev_prim->start, this_prim->start,
307 &prev_prim->count, this_prim->count,
308 prev_prim->basevertex, this_prim->basevertex,
310 this_prim->begin, this_prim->end)) {
311 /* We've found a prim that just extend the previous one. Tack it
312 * onto the previous one, and let this primitive struct get dropped.
317 /* If any previous primitives have been dropped, then we need to copy
318 * this later one into the next available slot.
321 if (prev_prim != this_prim)
322 *prev_prim = *this_prim;
325 *prim_count = prev_prim - prim_list + 1;
330 * Convert GL_LINE_LOOP primitive into GL_LINE_STRIP so that drivers
331 * don't have to worry about handling the _mesa_prim::begin/end flags.
332 * See https://bugs.freedesktop.org/show_bug.cgi?id=81174
335 convert_line_loop_to_strip(struct vbo_save_context *save,
336 struct vbo_save_vertex_list *node)
338 struct _mesa_prim *prim = &node->prims[node->prim_count - 1];
340 assert(prim->mode == GL_LINE_LOOP);
343 /* Copy the 0th vertex to end of the buffer and extend the
344 * vertex count by one to finish the line loop.
346 const GLuint sz = save->vertex_size;
348 const fi_type *src = save->buffer_map + prim->start * sz;
350 fi_type *dst = save->buffer_map + (prim->start + prim->count) * sz;
352 memcpy(dst, src, sz * sizeof(float));
355 node->vertex_count++;
357 save->buffer_ptr += sz;
358 save->vertex_store->used += sz;
362 /* Drawing the second or later section of a long line loop.
363 * Skip the 0th vertex.
369 prim->mode = GL_LINE_STRIP;
373 /* Compare the present vao if it has the same setup. */
375 compare_vao(gl_vertex_processing_mode mode,
376 const struct gl_vertex_array_object *vao,
377 const struct gl_buffer_object *bo, GLintptr buffer_offset,
378 GLuint stride, GLbitfield64 vao_enabled,
379 const GLubyte size[VBO_ATTRIB_MAX],
380 const GLenum16 type[VBO_ATTRIB_MAX],
381 const GLuint offset[VBO_ATTRIB_MAX])
386 /* If the enabled arrays are not the same we are not equal. */
387 if (vao_enabled != vao->Enabled)
390 /* Check the buffer binding at 0 */
391 if (vao->BufferBinding[0].BufferObj != bo)
393 /* BufferBinding[0].Offset != buffer_offset is checked per attribute */
394 if (vao->BufferBinding[0].Stride != stride)
396 assert(vao->BufferBinding[0].InstanceDivisor == 0);
398 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space */
399 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
401 /* Now check the enabled arrays */
402 GLbitfield mask = vao_enabled;
404 const int attr = u_bit_scan(&mask);
405 const unsigned char vbo_attr = vao_to_vbo_map[attr];
406 const GLenum16 tp = type[vbo_attr];
407 const GLintptr off = offset[vbo_attr] + buffer_offset;
408 const struct gl_array_attributes *attrib = &vao->VertexAttrib[attr];
409 if (attrib->RelativeOffset + vao->BufferBinding[0].Offset != off)
411 if (attrib->Format.Type != tp)
413 if (attrib->Format.Size != size[vbo_attr])
415 assert(attrib->Format.Format == GL_RGBA);
416 assert(attrib->Format.Normalized == GL_FALSE);
417 assert(attrib->Format.Integer == vbo_attrtype_to_integer_flag(tp));
418 assert(attrib->Format.Doubles == vbo_attrtype_to_double_flag(tp));
419 assert(attrib->BufferBindingIndex == 0);
426 /* Create or reuse the vao for the vertex processing mode. */
428 update_vao(struct gl_context *ctx,
429 gl_vertex_processing_mode mode,
430 struct gl_vertex_array_object **vao,
431 struct gl_buffer_object *bo, GLintptr buffer_offset,
432 GLuint stride, GLbitfield64 vbo_enabled,
433 const GLubyte size[VBO_ATTRIB_MAX],
434 const GLenum16 type[VBO_ATTRIB_MAX],
435 const GLuint offset[VBO_ATTRIB_MAX])
437 /* Compute the bitmasks of vao_enabled arrays */
438 GLbitfield vao_enabled = _vbo_get_vao_enabled_from_vbo(mode, vbo_enabled);
441 * Check if we can possibly reuse the exisiting one.
442 * In the long term we should reset them when something changes.
444 if (compare_vao(mode, *vao, bo, buffer_offset, stride,
445 vao_enabled, size, type, offset))
448 /* The initial refcount is 1 */
449 _mesa_reference_vao(ctx, vao, NULL);
450 *vao = _mesa_new_vao(ctx, ~((GLuint)0));
453 * assert(stride <= ctx->Const.MaxVertexAttribStride);
454 * MaxVertexAttribStride is not set for drivers that does not
455 * expose GL 44 or GLES 31.
458 /* Bind the buffer object at binding point 0 */
459 _mesa_bind_vertex_buffer(ctx, *vao, 0, bo, buffer_offset, stride, false,
462 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space
463 * Note that the position/generic0 aliasing is done in the VAO.
465 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
466 /* Now set the enable arrays */
467 GLbitfield mask = vao_enabled;
469 const int vao_attr = u_bit_scan(&mask);
470 const GLubyte vbo_attr = vao_to_vbo_map[vao_attr];
471 assert(offset[vbo_attr] <= ctx->Const.MaxVertexAttribRelativeOffset);
473 _vbo_set_attrib_format(ctx, *vao, vao_attr, buffer_offset,
474 size[vbo_attr], type[vbo_attr], offset[vbo_attr]);
475 _mesa_vertex_attrib_binding(ctx, *vao, vao_attr, 0);
477 _mesa_enable_vertex_array_attribs(ctx, *vao, vao_enabled);
478 assert(vao_enabled == (*vao)->Enabled);
479 assert((vao_enabled & ~(*vao)->VertexAttribBufferMask) == 0);
481 /* Finalize and freeze the VAO */
482 _mesa_set_vao_immutable(ctx, *vao);
487 realloc_storage(struct gl_context *ctx, int prim_count, int vertex_count)
489 struct vbo_save_context *save = &vbo_context(ctx)->save;
490 if (vertex_count >= 0) {
493 vbo_save_unmap_vertex_store(ctx, save->vertex_store);
495 /* Release old reference:
497 free_vertex_store(ctx, save->vertex_store);
498 save->vertex_store = NULL;
499 /* When we have a new vbo, we will for sure need a new vao */
500 for (gl_vertex_processing_mode vpm = 0; vpm < VP_MODE_MAX; ++vpm)
501 _mesa_reference_vao(ctx, &save->VAO[vpm], NULL);
503 /* Allocate and map new store:
505 save->vertex_store = alloc_vertex_store(ctx, vertex_count);
506 save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
507 save->out_of_memory = save->buffer_ptr == NULL;
510 if (prim_count >= 0) {
511 if (--save->prim_store->refcount == 0) {
512 free(save->prim_store->prims);
513 free(save->prim_store);
515 save->prim_store = alloc_prim_store(prim_count);
521 * Insert the active immediate struct onto the display list currently
525 compile_vertex_list(struct gl_context *ctx)
527 struct vbo_save_context *save = &vbo_context(ctx)->save;
528 struct vbo_save_vertex_list *node;
530 /* Allocate space for this structure in the display list currently
533 node = (struct vbo_save_vertex_list *)
534 _mesa_dlist_alloc_vertex_list(ctx);
539 memset(node, 0, sizeof(struct vbo_save_vertex_list));
541 /* Make sure the pointer is aligned to the size of a pointer */
542 assert((GLintptr) node % sizeof(void *) == 0);
544 /* Duplicate our template, increment refcounts to the storage structs:
546 GLintptr old_offset = 0;
548 old_offset = save->VAO[0]->BufferBinding[0].Offset
549 + save->VAO[0]->VertexAttrib[VERT_ATTRIB_POS].RelativeOffset;
551 const GLsizei stride = save->vertex_size*sizeof(GLfloat);
552 GLintptr buffer_offset =
553 (save->buffer_map - save->vertex_store->buffer_map) * sizeof(GLfloat);
554 assert(old_offset <= buffer_offset);
555 const GLintptr offset_diff = buffer_offset - old_offset;
556 GLuint start_offset = 0;
557 if (offset_diff > 0 && stride > 0 && offset_diff % stride == 0) {
558 /* The vertex size is an exact multiple of the buffer offset.
559 * This means that we can use zero-based vertex attribute pointers
560 * and specify the start of the primitive with the _mesa_prim::start
561 * field. This results in issuing several draw calls with identical
562 * vertex attribute information. This can result in fewer state
563 * changes in drivers. In particular, the Gallium CSO module will
564 * filter out redundant vertex buffer changes.
566 /* We cannot immediately update the primitives as some methods below
567 * still need the uncorrected start vertices
569 start_offset = offset_diff/stride;
570 assert(old_offset == buffer_offset - offset_diff);
571 buffer_offset = old_offset;
573 GLuint offsets[VBO_ATTRIB_MAX];
574 for (unsigned i = 0, offset = 0; i < VBO_ATTRIB_MAX; ++i) {
576 offset += save->attrsz[i] * sizeof(GLfloat);
578 node->vertex_count = save->vert_count;
579 node->wrap_count = save->copied.nr;
580 node->prims = save->prims;
581 node->merged.ib.obj = NULL;
582 node->prim_count = save->prim_count;
583 node->prim_store = save->prim_store;
585 /* Create a pair of VAOs for the possible VERTEX_PROCESSING_MODEs
586 * Note that this may reuse the previous one of possible.
588 for (gl_vertex_processing_mode vpm = VP_MODE_FF; vpm < VP_MODE_MAX; ++vpm) {
589 /* create or reuse the vao */
590 update_vao(ctx, vpm, &save->VAO[vpm],
591 save->vertex_store->bufferobj, buffer_offset, stride,
592 save->enabled, save->attrsz, save->attrtype, offsets);
593 /* Reference the vao in the dlist */
594 node->VAO[vpm] = NULL;
595 _mesa_reference_vao(ctx, &node->VAO[vpm], save->VAO[vpm]);
598 node->prim_store->refcount++;
600 if (save->no_current_update) {
601 node->current_data = NULL;
604 GLuint current_size = save->vertex_size - save->attrsz[0];
605 node->current_data = NULL;
608 node->current_data = malloc(current_size * sizeof(GLfloat));
609 if (node->current_data) {
610 const char *buffer = (const char *)save->buffer_map;
611 unsigned attr_offset = save->attrsz[0] * sizeof(GLfloat);
612 unsigned vertex_offset = 0;
614 if (node->vertex_count)
615 vertex_offset = (node->vertex_count - 1) * stride;
617 memcpy(node->current_data, buffer + vertex_offset + attr_offset,
618 current_size * sizeof(GLfloat));
620 _mesa_error(ctx, GL_OUT_OF_MEMORY, "Current value allocation");
625 assert(save->attrsz[VBO_ATTRIB_POS] != 0 || node->vertex_count == 0);
627 if (save->dangling_attr_ref)
628 ctx->ListState.CurrentList->Flags |= DLIST_DANGLING_REFS;
630 save->vertex_store->used += save->vertex_size * node->vertex_count;
631 save->prim_store->used += node->prim_count;
633 /* Copy duplicated vertices
635 save->copied.nr = copy_vertices(ctx, node, save->buffer_map);
637 if (node->prims[node->prim_count - 1].mode == GL_LINE_LOOP) {
638 convert_line_loop_to_strip(save, node);
641 merge_prims(ctx, node->prims, &node->prim_count);
643 /* Correct the primitive starts, we can only do this here as copy_vertices
644 * and convert_line_loop_to_strip above consume the uncorrected starts.
645 * On the other hand the _vbo_loopback_vertex_list call below needs the
646 * primitves to be corrected already.
648 for (unsigned i = 0; i < node->prim_count; i++) {
649 node->prims[i].start += start_offset;
652 /* Create an index buffer. */
653 node->min_index = node->max_index = 0;
654 if (save->vert_count && node->prim_count) {
655 /* We won't modify node->prims, so use a const alias to avoid unintended
657 const struct _mesa_prim *original_prims = node->prims;
659 int end = original_prims[node->prim_count - 1].start +
660 original_prims[node->prim_count - 1].count;
661 int total_vert_count = end - original_prims[0].start;
663 node->min_index = node->prims[0].start;
664 node->max_index = end - 1;
666 /* Estimate for the worst case: all prims are line strips (the +1 is because
667 * wrap_buffers may call use but the last primitive may not be complete) */
668 int max_indices_count = MAX2(total_vert_count * 2 - (node->prim_count * 2) + 1,
671 int indices_offset = 0;
672 int available = save->previous_ib ? (save->previous_ib->Size / 4 - save->ib_first_free_index) : 0;
673 if (available >= max_indices_count) {
674 indices_offset = save->ib_first_free_index;
676 int size = max_indices_count * sizeof(uint32_t);
677 uint32_t* indices = (uint32_t*) malloc(size);
678 struct _mesa_prim *merged_prims = NULL;
682 int last_valid_prim = -1;
683 /* Construct indices array. */
684 for (unsigned i = 0; i < node->prim_count; i++) {
685 assert(original_prims[i].basevertex == 0);
686 GLubyte mode = original_prims[i].mode;
688 int vertex_count = original_prims[i].count;
693 /* Line strips may get converted to lines */
694 if (mode == GL_LINE_STRIP)
697 /* If 2 consecutive prims use the same mode => merge them. */
698 bool merge_prims = last_valid_prim >= 0 &&
699 mode == merged_prims[last_valid_prim].mode &&
700 mode != GL_LINE_LOOP && mode != GL_TRIANGLE_FAN &&
701 mode != GL_QUAD_STRIP && mode != GL_POLYGON &&
704 /* To be able to merge consecutive triangle strips we need to insert
705 * a degenerate triangle.
708 mode == GL_TRIANGLE_STRIP) {
709 /* Insert a degenerate triangle */
710 assert(merged_prims[last_valid_prim].mode == GL_TRIANGLE_STRIP);
711 unsigned tri_count = merged_prims[last_valid_prim].count - 2;
713 indices[idx] = indices[idx - 1];
714 indices[idx + 1] = original_prims[i].start;
716 merged_prims[last_valid_prim].count += 2;
719 /* Add another index to preserve winding order */
720 indices[idx++] = original_prims[i].start;
721 merged_prims[last_valid_prim].count++;
727 /* Convert line strips to lines if it'll allow if the previous
728 * prim mode is GL_LINES (so merge_prims is true) or if the next
729 * primitive mode is GL_LINES or GL_LINE_LOOP.
731 if (original_prims[i].mode == GL_LINE_STRIP &&
733 (i < node->prim_count - 1 &&
734 (original_prims[i + 1].mode == GL_LINE_STRIP ||
735 original_prims[i + 1].mode == GL_LINES)))) {
736 for (unsigned j = 0; j < vertex_count; j++) {
737 indices[idx++] = original_prims[i].start + j;
738 /* Repeat all but the first/last indices. */
739 if (j && j != vertex_count - 1) {
740 indices[idx++] = original_prims[i].start + j;
744 /* We didn't convert to LINES, so restore the original mode */
745 mode = original_prims[i].mode;
747 for (unsigned j = 0; j < vertex_count; j++) {
748 indices[idx++] = original_prims[i].start + j;
753 /* Update vertex count. */
754 merged_prims[last_valid_prim].count += idx - start;
756 /* Keep this primitive */
757 last_valid_prim += 1;
758 assert(last_valid_prim <= i);
759 merged_prims = realloc(merged_prims, (1 + last_valid_prim) * sizeof(struct _mesa_prim));
760 merged_prims[last_valid_prim] = original_prims[i];
761 merged_prims[last_valid_prim].start = indices_offset + start;
762 merged_prims[last_valid_prim].count = idx - start;
764 merged_prims[last_valid_prim].mode = mode;
767 assert(idx > 0 && idx <= max_indices_count);
769 unsigned merged_prim_count = last_valid_prim + 1;
770 node->merged.ib.ptr = NULL;
771 node->merged.ib.count = idx;
772 node->merged.ib.index_size_shift = (GL_UNSIGNED_INT - GL_UNSIGNED_BYTE) >> 1;
774 if (!indices_offset) {
775 /* Allocate a new index buffer */
776 _mesa_reference_buffer_object(ctx, &save->previous_ib, NULL);
777 save->previous_ib = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID + 1);
778 bool success = ctx->Driver.BufferData(ctx,
779 GL_ELEMENT_ARRAY_BUFFER_ARB,
780 MAX2(VBO_SAVE_INDEX_SIZE, idx) * sizeof(uint32_t),
782 GL_STATIC_DRAW_ARB, GL_MAP_WRITE_BIT,
785 _mesa_reference_buffer_object(ctx, &save->previous_ib, NULL);
786 _mesa_error(ctx, GL_OUT_OF_MEMORY, "IB allocation");
790 _mesa_reference_buffer_object(ctx, &node->merged.ib.obj, save->previous_ib);
792 if (node->merged.ib.obj) {
793 ctx->Driver.BufferSubData(ctx,
794 indices_offset * sizeof(uint32_t),
795 idx * sizeof(uint32_t),
797 node->merged.ib.obj);
798 save->ib_first_free_index = indices_offset + idx;
800 node->vertex_count = 0;
801 node->prim_count = 0;
804 /* Prepare for DrawGallium */
805 memset(&node->merged.info, 0, sizeof(struct pipe_draw_info));
806 /* The other info fields will be updated in vbo_save_playback_vertex_list */
807 node->merged.info.index_size = 4;
808 node->merged.info.instance_count = 1;
809 node->merged.info.index.gl_bo = node->merged.ib.obj;
810 node->merged.start_count = malloc(merged_prim_count * sizeof(struct pipe_draw_start_count));
811 if (merged_prim_count == 1) {
812 node->merged.info.mode = merged_prims[0].mode;
813 node->merged.mode = NULL;
815 node->merged.mode = malloc(merged_prim_count * sizeof(unsigned char));
818 for (unsigned i = 0; i < merged_prim_count; i++) {
819 node->merged.start_count[i].start = merged_prims[i].start;
820 node->merged.start_count[i].count = merged_prims[i].count;
821 if (merged_prim_count > 1)
822 node->merged.mode[i] = merged_prims[i].mode;
824 node->merged.num_draws = merged_prim_count;
825 if (node->merged.num_draws > 1) {
826 bool same_mode = true;
827 for (unsigned i = 1; i < node->merged.num_draws && same_mode; i++) {
828 same_mode = node->merged.mode[i] == node->merged.mode[0];
831 /* All primitives use the same mode, so we can simplify a bit */
832 node->merged.info.mode = node->merged.mode[0];
833 free(node->merged.mode);
834 node->merged.mode = NULL;
842 /* Deal with GL_COMPILE_AND_EXECUTE:
844 if (ctx->ExecuteFlag) {
845 struct _glapi_table *dispatch = GET_DISPATCH();
847 _glapi_set_dispatch(ctx->Exec);
849 /* Note that the range of referenced vertices must be mapped already */
850 _vbo_loopback_vertex_list(ctx, node);
852 _glapi_set_dispatch(dispatch);
855 /* Decide whether the storage structs are full, or can be used for
856 * the next vertex lists as well.
858 if (save->vertex_store->used >
859 save->vertex_store->bufferobj->Size / sizeof(float) - 16 * (save->vertex_size + 4)) {
860 realloc_storage(ctx, -1, 0);
863 /* update buffer_ptr for next vertex */
864 save->buffer_ptr = save->vertex_store->buffer_map
865 + save->vertex_store->used;
868 if (save->prim_store->used > save->prim_store->size - 6) {
869 realloc_storage(ctx, 0, -1);
872 /* Reset our structures for the next run of vertices:
879 * This is called when we fill a vertex buffer before we hit a glEnd().
881 * TODO -- If no new vertices have been stored, don't bother saving it.
884 wrap_buffers(struct gl_context *ctx)
886 struct vbo_save_context *save = &vbo_context(ctx)->save;
887 GLint i = save->prim_count - 1;
890 assert(i < (GLint) save->prim_max);
893 /* Close off in-progress primitive.
895 save->prims[i].count = (save->vert_count - save->prims[i].start);
896 mode = save->prims[i].mode;
898 /* store the copied vertices, and allocate a new list.
900 compile_vertex_list(ctx);
902 /* Restart interrupted primitive
904 save->prims[0].mode = mode;
905 save->prims[0].begin = 0;
906 save->prims[0].end = 0;
907 save->prims[0].start = 0;
908 save->prims[0].count = 0;
909 save->prim_count = 1;
914 * Called only when buffers are wrapped as the result of filling the
915 * vertex_store struct.
918 wrap_filled_vertex(struct gl_context *ctx)
920 struct vbo_save_context *save = &vbo_context(ctx)->save;
921 unsigned numComponents;
923 /* Emit a glEnd to close off the last vertex list.
927 /* Copy stored stored vertices to start of new list.
929 assert(save->max_vert - save->vert_count > save->copied.nr);
931 numComponents = save->copied.nr * save->vertex_size;
932 memcpy(save->buffer_ptr,
934 numComponents * sizeof(fi_type));
935 save->buffer_ptr += numComponents;
936 save->vert_count += save->copied.nr;
941 copy_to_current(struct gl_context *ctx)
943 struct vbo_save_context *save = &vbo_context(ctx)->save;
944 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
947 const int i = u_bit_scan64(&enabled);
948 assert(save->attrsz[i]);
950 if (save->attrtype[i] == GL_DOUBLE ||
951 save->attrtype[i] == GL_UNSIGNED_INT64_ARB)
952 memcpy(save->current[i], save->attrptr[i], save->attrsz[i] * sizeof(GLfloat));
954 COPY_CLEAN_4V_TYPE_AS_UNION(save->current[i], save->attrsz[i],
955 save->attrptr[i], save->attrtype[i]);
961 copy_from_current(struct gl_context *ctx)
963 struct vbo_save_context *save = &vbo_context(ctx)->save;
964 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
967 const int i = u_bit_scan64(&enabled);
969 switch (save->attrsz[i]) {
971 save->attrptr[i][3] = save->current[i][3];
974 save->attrptr[i][2] = save->current[i][2];
977 save->attrptr[i][1] = save->current[i][1];
980 save->attrptr[i][0] = save->current[i][0];
983 unreachable("Unexpected vertex attribute size");
990 * Called when we increase the size of a vertex attribute. For example,
991 * if we've seen one or more glTexCoord2f() calls and now we get a
992 * glTexCoord3f() call.
993 * Flush existing data, set new attrib size, replay copied vertices.
996 upgrade_vertex(struct gl_context *ctx, GLuint attr, GLuint newsz)
998 struct vbo_save_context *save = &vbo_context(ctx)->save;
1003 /* Store the current run of vertices, and emit a GL_END. Emit a
1004 * BEGIN in the new buffer.
1006 if (save->vert_count)
1009 assert(save->copied.nr == 0);
1011 /* Do a COPY_TO_CURRENT to ensure back-copying works for the case
1012 * when the attribute already exists in the vertex and is having
1013 * its size increased.
1015 copy_to_current(ctx);
1019 oldsz = save->attrsz[attr];
1020 save->attrsz[attr] = newsz;
1021 save->enabled |= BITFIELD64_BIT(attr);
1023 save->vertex_size += newsz - oldsz;
1024 save->max_vert = ((save->vertex_store->bufferobj->Size / sizeof(float) -
1025 save->vertex_store->used) /
1027 save->vert_count = 0;
1029 /* Recalculate all the attrptr[] values:
1032 for (i = 0; i < VBO_ATTRIB_MAX; i++) {
1033 if (save->attrsz[i]) {
1034 save->attrptr[i] = tmp;
1035 tmp += save->attrsz[i];
1038 save->attrptr[i] = NULL; /* will not be dereferenced. */
1042 /* Copy from current to repopulate the vertex with correct values.
1044 copy_from_current(ctx);
1046 /* Replay stored vertices to translate them to new format here.
1048 * If there are copied vertices and the new (upgraded) attribute
1049 * has not been defined before, this list is somewhat degenerate,
1050 * and will need fixup at runtime.
1052 if (save->copied.nr) {
1053 const fi_type *data = save->copied.buffer;
1054 fi_type *dest = save->buffer_map;
1056 /* Need to note this and fix up at runtime (or loopback):
1058 if (attr != VBO_ATTRIB_POS && save->currentsz[attr][0] == 0) {
1060 save->dangling_attr_ref = GL_TRUE;
1063 for (i = 0; i < save->copied.nr; i++) {
1064 GLbitfield64 enabled = save->enabled;
1066 const int j = u_bit_scan64(&enabled);
1067 assert(save->attrsz[j]);
1070 COPY_CLEAN_4V_TYPE_AS_UNION(dest, oldsz, data,
1076 COPY_SZ_4V(dest, newsz, save->current[attr]);
1081 GLint sz = save->attrsz[j];
1082 COPY_SZ_4V(dest, sz, data);
1089 save->buffer_ptr = dest;
1090 save->vert_count += save->copied.nr;
1096 * This is called when the size of a vertex attribute changes.
1097 * For example, after seeing one or more glTexCoord2f() calls we
1098 * get a glTexCoord4f() or glTexCoord1f() call.
1101 fixup_vertex(struct gl_context *ctx, GLuint attr,
1102 GLuint sz, GLenum newType)
1104 struct vbo_save_context *save = &vbo_context(ctx)->save;
1106 if (sz > save->attrsz[attr] ||
1107 newType != save->attrtype[attr]) {
1108 /* New size is larger. Need to flush existing vertices and get
1109 * an enlarged vertex format.
1111 upgrade_vertex(ctx, attr, sz);
1113 else if (sz < save->active_sz[attr]) {
1115 const fi_type *id = vbo_get_default_vals_as_union(save->attrtype[attr]);
1117 /* New size is equal or smaller - just need to fill in some
1120 for (i = sz; i <= save->attrsz[attr]; i++)
1121 save->attrptr[attr][i - 1] = id[i - 1];
1124 save->active_sz[attr] = sz;
1129 * Reset the current size of all vertex attributes to the default
1130 * value of 0. This signals that we haven't yet seen any per-vertex
1131 * commands such as glNormal3f() or glTexCoord2f().
1134 reset_vertex(struct gl_context *ctx)
1136 struct vbo_save_context *save = &vbo_context(ctx)->save;
1138 while (save->enabled) {
1139 const int i = u_bit_scan64(&save->enabled);
1140 assert(save->attrsz[i]);
1141 save->attrsz[i] = 0;
1142 save->active_sz[i] = 0;
1145 save->vertex_size = 0;
1150 * If index=0, does glVertexAttrib*() alias glVertex() to emit a vertex?
1151 * It depends on a few things, including whether we're inside or outside
1155 is_vertex_position(const struct gl_context *ctx, GLuint index)
1157 return (index == 0 &&
1158 _mesa_attr_zero_aliases_vertex(ctx) &&
1159 _mesa_inside_dlist_begin_end(ctx));
1164 #define ERROR(err) _mesa_compile_error(ctx, err, __func__);
1167 /* Only one size for each attribute may be active at once. Eg. if
1168 * Color3f is installed/active, then Color4f may not be, even if the
1169 * vertex actually contains 4 color coordinates. This is because the
1170 * 3f version won't otherwise set color[3] to 1.0 -- this is the job
1171 * of the chooser function when switching between Color4f and Color3f.
1173 #define ATTR_UNION(A, N, T, C, V0, V1, V2, V3) \
1175 struct vbo_save_context *save = &vbo_context(ctx)->save; \
1176 int sz = (sizeof(C) / sizeof(GLfloat)); \
1178 if (save->active_sz[A] != N) \
1179 fixup_vertex(ctx, A, N * sz, T); \
1182 C *dest = (C *)save->attrptr[A]; \
1183 if (N>0) dest[0] = V0; \
1184 if (N>1) dest[1] = V1; \
1185 if (N>2) dest[2] = V2; \
1186 if (N>3) dest[3] = V3; \
1187 save->attrtype[A] = T; \
1193 for (i = 0; i < save->vertex_size; i++) \
1194 save->buffer_ptr[i] = save->vertex[i]; \
1196 save->buffer_ptr += save->vertex_size; \
1198 if (++save->vert_count >= save->max_vert) \
1199 wrap_filled_vertex(ctx); \
1203 #define TAG(x) _save_##x
1205 #include "vbo_attrib_tmp.h"
1209 #define MAT( ATTR, N, face, params ) \
1211 if (face != GL_BACK) \
1212 MAT_ATTR( ATTR, N, params ); /* front */ \
1213 if (face != GL_FRONT) \
1214 MAT_ATTR( ATTR + 1, N, params ); /* back */ \
1219 * Save a glMaterial call found between glBegin/End.
1220 * glMaterial calls outside Begin/End are handled in dlist.c.
1222 static void GLAPIENTRY
1223 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params)
1225 GET_CURRENT_CONTEXT(ctx);
1227 if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
1228 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(face)");
1234 MAT(VBO_ATTRIB_MAT_FRONT_EMISSION, 4, face, params);
1237 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1240 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1243 MAT(VBO_ATTRIB_MAT_FRONT_SPECULAR, 4, face, params);
1246 if (*params < 0 || *params > ctx->Const.MaxShininess) {
1247 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glMaterial(shininess)");
1250 MAT(VBO_ATTRIB_MAT_FRONT_SHININESS, 1, face, params);
1253 case GL_COLOR_INDEXES:
1254 MAT(VBO_ATTRIB_MAT_FRONT_INDEXES, 3, face, params);
1256 case GL_AMBIENT_AND_DIFFUSE:
1257 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1258 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1261 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(pname)");
1267 /* Cope with EvalCoord/CallList called within a begin/end object:
1268 * -- Flush current buffer
1269 * -- Fallback to opcodes for the rest of the begin/end object.
1272 dlist_fallback(struct gl_context *ctx)
1274 struct vbo_save_context *save = &vbo_context(ctx)->save;
1276 if (save->vert_count || save->prim_count) {
1277 if (save->prim_count > 0) {
1278 /* Close off in-progress primitive. */
1279 GLint i = save->prim_count - 1;
1280 save->prims[i].count = save->vert_count - save->prims[i].start;
1283 /* Need to replay this display list with loopback,
1284 * unfortunately, otherwise this primitive won't be handled
1287 save->dangling_attr_ref = GL_TRUE;
1289 compile_vertex_list(ctx);
1292 copy_to_current(ctx);
1294 reset_counters(ctx);
1295 if (save->out_of_memory) {
1296 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1299 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1301 ctx->Driver.SaveNeedFlush = GL_FALSE;
1305 static void GLAPIENTRY
1306 _save_EvalCoord1f(GLfloat u)
1308 GET_CURRENT_CONTEXT(ctx);
1309 dlist_fallback(ctx);
1310 CALL_EvalCoord1f(ctx->Save, (u));
1313 static void GLAPIENTRY
1314 _save_EvalCoord1fv(const GLfloat * v)
1316 GET_CURRENT_CONTEXT(ctx);
1317 dlist_fallback(ctx);
1318 CALL_EvalCoord1fv(ctx->Save, (v));
1321 static void GLAPIENTRY
1322 _save_EvalCoord2f(GLfloat u, GLfloat v)
1324 GET_CURRENT_CONTEXT(ctx);
1325 dlist_fallback(ctx);
1326 CALL_EvalCoord2f(ctx->Save, (u, v));
1329 static void GLAPIENTRY
1330 _save_EvalCoord2fv(const GLfloat * v)
1332 GET_CURRENT_CONTEXT(ctx);
1333 dlist_fallback(ctx);
1334 CALL_EvalCoord2fv(ctx->Save, (v));
1337 static void GLAPIENTRY
1338 _save_EvalPoint1(GLint i)
1340 GET_CURRENT_CONTEXT(ctx);
1341 dlist_fallback(ctx);
1342 CALL_EvalPoint1(ctx->Save, (i));
1345 static void GLAPIENTRY
1346 _save_EvalPoint2(GLint i, GLint j)
1348 GET_CURRENT_CONTEXT(ctx);
1349 dlist_fallback(ctx);
1350 CALL_EvalPoint2(ctx->Save, (i, j));
1353 static void GLAPIENTRY
1354 _save_CallList(GLuint l)
1356 GET_CURRENT_CONTEXT(ctx);
1357 dlist_fallback(ctx);
1358 CALL_CallList(ctx->Save, (l));
1361 static void GLAPIENTRY
1362 _save_CallLists(GLsizei n, GLenum type, const GLvoid * v)
1364 GET_CURRENT_CONTEXT(ctx);
1365 dlist_fallback(ctx);
1366 CALL_CallLists(ctx->Save, (n, type, v));
1372 * Called when a glBegin is getting compiled into a display list.
1373 * Updating of ctx->Driver.CurrentSavePrimitive is already taken care of.
1376 vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode,
1377 bool no_current_update)
1379 struct vbo_save_context *save = &vbo_context(ctx)->save;
1380 const GLuint i = save->prim_count++;
1382 ctx->Driver.CurrentSavePrimitive = mode;
1384 assert(i < save->prim_max);
1385 save->prims[i].mode = mode & VBO_SAVE_PRIM_MODE_MASK;
1386 save->prims[i].begin = 1;
1387 save->prims[i].end = 0;
1388 save->prims[i].start = save->vert_count;
1389 save->prims[i].count = 0;
1391 save->no_current_update = no_current_update;
1393 if (save->out_of_memory) {
1394 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1397 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
1400 /* We need to call vbo_save_SaveFlushVertices() if there's state change */
1401 ctx->Driver.SaveNeedFlush = GL_TRUE;
1405 static void GLAPIENTRY
1408 GET_CURRENT_CONTEXT(ctx);
1409 struct vbo_save_context *save = &vbo_context(ctx)->save;
1410 const GLint i = save->prim_count - 1;
1412 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1413 save->prims[i].end = 1;
1414 save->prims[i].count = (save->vert_count - save->prims[i].start);
1416 if (i == (GLint) save->prim_max - 1) {
1417 compile_vertex_list(ctx);
1418 assert(save->copied.nr == 0);
1421 /* Swap out this vertex format while outside begin/end. Any color,
1422 * etc. received between here and the next begin will be compiled
1425 if (save->out_of_memory) {
1426 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1429 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1434 static void GLAPIENTRY
1435 _save_Begin(GLenum mode)
1437 GET_CURRENT_CONTEXT(ctx);
1439 _mesa_compile_error(ctx, GL_INVALID_OPERATION, "Recursive glBegin");
1443 static void GLAPIENTRY
1444 _save_PrimitiveRestartNV(void)
1446 GET_CURRENT_CONTEXT(ctx);
1447 struct vbo_save_context *save = &vbo_context(ctx)->save;
1449 if (save->prim_count == 0) {
1450 /* We're not inside a glBegin/End pair, so calling glPrimitiverRestartNV
1453 _mesa_compile_error(ctx, GL_INVALID_OPERATION,
1454 "glPrimitiveRestartNV called outside glBegin/End");
1456 /* get current primitive mode */
1457 GLenum curPrim = save->prims[save->prim_count - 1].mode;
1458 bool no_current_update = save->no_current_update;
1460 /* restart primitive */
1461 CALL_End(ctx->CurrentServerDispatch, ());
1462 vbo_save_NotifyBegin(ctx, curPrim, no_current_update);
1467 /* Unlike the functions above, these are to be hooked into the vtxfmt
1468 * maintained in ctx->ListState, active when the list is known or
1469 * suspected to be outside any begin/end primitive.
1470 * Note: OBE = Outside Begin/End
1472 static void GLAPIENTRY
1473 _save_OBE_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
1475 GET_CURRENT_CONTEXT(ctx);
1476 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1478 vbo_save_NotifyBegin(ctx, GL_QUADS, false);
1479 CALL_Vertex2f(dispatch, (x1, y1));
1480 CALL_Vertex2f(dispatch, (x2, y1));
1481 CALL_Vertex2f(dispatch, (x2, y2));
1482 CALL_Vertex2f(dispatch, (x1, y2));
1483 CALL_End(dispatch, ());
1487 static void GLAPIENTRY
1488 _save_OBE_Rectd(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2)
1490 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1493 static void GLAPIENTRY
1494 _save_OBE_Rectdv(const GLdouble *v1, const GLdouble *v2)
1496 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1499 static void GLAPIENTRY
1500 _save_OBE_Rectfv(const GLfloat *v1, const GLfloat *v2)
1502 _save_OBE_Rectf(v1[0], v1[1], v2[0], v2[1]);
1505 static void GLAPIENTRY
1506 _save_OBE_Recti(GLint x1, GLint y1, GLint x2, GLint y2)
1508 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1511 static void GLAPIENTRY
1512 _save_OBE_Rectiv(const GLint *v1, const GLint *v2)
1514 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1517 static void GLAPIENTRY
1518 _save_OBE_Rects(GLshort x1, GLshort y1, GLshort x2, GLshort y2)
1520 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1523 static void GLAPIENTRY
1524 _save_OBE_Rectsv(const GLshort *v1, const GLshort *v2)
1526 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1530 _ensure_draws_fits_in_storage(struct gl_context *ctx, int primcount, int vertcount)
1532 struct vbo_save_context *save = &vbo_context(ctx)->save;
1534 bool realloc_prim = save->prim_count + primcount > save->prim_max;
1535 bool realloc_vert = save->vertex_size && (save->vert_count + vertcount >= save->max_vert);
1537 if (realloc_prim || realloc_vert) {
1538 if (save->vert_count || save->prim_count)
1539 compile_vertex_list(ctx);
1540 realloc_storage(ctx, realloc_prim ? primcount : -1, realloc_vert ? vertcount : -1);
1541 reset_counters(ctx);
1542 assert(save->prim_max);
1547 static void GLAPIENTRY
1548 _save_OBE_DrawArrays(GLenum mode, GLint start, GLsizei count)
1550 GET_CURRENT_CONTEXT(ctx);
1551 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1552 struct vbo_save_context *save = &vbo_context(ctx)->save;
1555 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1556 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)");
1560 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawArrays(count<0)");
1564 if (save->out_of_memory)
1567 _ensure_draws_fits_in_storage(ctx, 1, count);
1569 /* Make sure to process any VBO binding changes */
1570 _mesa_update_state(ctx);
1572 _mesa_vao_map_arrays(ctx, vao, GL_MAP_READ_BIT);
1574 vbo_save_NotifyBegin(ctx, mode, true);
1576 for (i = 0; i < count; i++)
1577 _mesa_array_element(ctx, start + i);
1578 CALL_End(ctx->CurrentServerDispatch, ());
1580 _mesa_vao_unmap_arrays(ctx, vao);
1584 static void GLAPIENTRY
1585 _save_OBE_MultiDrawArrays(GLenum mode, const GLint *first,
1586 const GLsizei *count, GLsizei primcount)
1588 GET_CURRENT_CONTEXT(ctx);
1591 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1592 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMultiDrawArrays(mode)");
1596 if (primcount < 0) {
1597 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1598 "glMultiDrawArrays(primcount<0)");
1602 unsigned vertcount = 0;
1603 for (i = 0; i < primcount; i++) {
1605 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1606 "glMultiDrawArrays(count[i]<0)");
1609 vertcount += count[i];
1612 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1614 for (i = 0; i < primcount; i++) {
1616 _save_OBE_DrawArrays(mode, first[i], count[i]);
1623 array_element(struct gl_context *ctx,
1624 GLint basevertex, GLuint elt, unsigned index_size_shift)
1626 /* Section 10.3.5 Primitive Restart:
1628 * When one of the *BaseVertex drawing commands specified in section 10.5
1629 * is used, the primitive restart comparison occurs before the basevertex
1630 * offset is added to the array index.
1632 /* If PrimitiveRestart is enabled and the index is the RestartIndex
1633 * then we call PrimitiveRestartNV and return.
1635 if (ctx->Array._PrimitiveRestart[index_size_shift] &&
1636 elt == ctx->Array._RestartIndex[index_size_shift]) {
1637 CALL_PrimitiveRestartNV(ctx->CurrentServerDispatch, ());
1641 _mesa_array_element(ctx, basevertex + elt);
1645 /* Could do better by copying the arrays and element list intact and
1646 * then emitting an indexed prim at runtime.
1648 static void GLAPIENTRY
1649 _save_OBE_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
1650 const GLvoid * indices, GLint basevertex)
1652 GET_CURRENT_CONTEXT(ctx);
1653 struct vbo_save_context *save = &vbo_context(ctx)->save;
1654 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1655 struct gl_buffer_object *indexbuf = vao->IndexBufferObj;
1658 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1659 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawElements(mode)");
1663 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1666 if (type != GL_UNSIGNED_BYTE &&
1667 type != GL_UNSIGNED_SHORT &&
1668 type != GL_UNSIGNED_INT) {
1669 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1673 if (save->out_of_memory)
1676 _ensure_draws_fits_in_storage(ctx, 1, count);
1678 /* Make sure to process any VBO binding changes */
1679 _mesa_update_state(ctx);
1681 _mesa_vao_map(ctx, vao, GL_MAP_READ_BIT);
1685 ADD_POINTERS(indexbuf->Mappings[MAP_INTERNAL].Pointer, indices);
1687 vbo_save_NotifyBegin(ctx, mode, true);
1690 case GL_UNSIGNED_BYTE:
1691 for (i = 0; i < count; i++)
1692 array_element(ctx, basevertex, ((GLubyte *) indices)[i], 0);
1694 case GL_UNSIGNED_SHORT:
1695 for (i = 0; i < count; i++)
1696 array_element(ctx, basevertex, ((GLushort *) indices)[i], 1);
1698 case GL_UNSIGNED_INT:
1699 for (i = 0; i < count; i++)
1700 array_element(ctx, basevertex, ((GLuint *) indices)[i], 2);
1703 _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)");
1707 CALL_End(ctx->CurrentServerDispatch, ());
1709 _mesa_vao_unmap(ctx, vao);
1712 static void GLAPIENTRY
1713 _save_OBE_DrawElements(GLenum mode, GLsizei count, GLenum type,
1714 const GLvoid * indices)
1716 _save_OBE_DrawElementsBaseVertex(mode, count, type, indices, 0);
1720 static void GLAPIENTRY
1721 _save_OBE_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
1722 GLsizei count, GLenum type,
1723 const GLvoid * indices)
1725 GET_CURRENT_CONTEXT(ctx);
1726 struct vbo_save_context *save = &vbo_context(ctx)->save;
1728 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1729 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)");
1733 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1734 "glDrawRangeElements(count<0)");
1737 if (type != GL_UNSIGNED_BYTE &&
1738 type != GL_UNSIGNED_SHORT &&
1739 type != GL_UNSIGNED_INT) {
1740 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(type)");
1744 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1745 "glDrawRangeElements(end < start)");
1749 if (save->out_of_memory)
1752 _save_OBE_DrawElements(mode, count, type, indices);
1756 static void GLAPIENTRY
1757 _save_OBE_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type,
1758 const GLvoid * const *indices, GLsizei primcount)
1760 GET_CURRENT_CONTEXT(ctx);
1761 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1765 for (i = 0; i < primcount; i++) {
1766 vertcount += count[i];
1768 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1770 for (i = 0; i < primcount; i++) {
1772 CALL_DrawElements(dispatch, (mode, count[i], type, indices[i]));
1778 static void GLAPIENTRY
1779 _save_OBE_MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count,
1781 const GLvoid * const *indices,
1783 const GLint *basevertex)
1785 GET_CURRENT_CONTEXT(ctx);
1786 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1790 for (i = 0; i < primcount; i++) {
1791 vertcount += count[i];
1793 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1795 for (i = 0; i < primcount; i++) {
1797 CALL_DrawElementsBaseVertex(dispatch, (mode, count[i], type,
1806 vtxfmt_init(struct gl_context *ctx)
1808 struct vbo_save_context *save = &vbo_context(ctx)->save;
1809 GLvertexformat *vfmt = &save->vtxfmt;
1811 #define NAME_AE(x) _ae_##x
1812 #define NAME_CALLLIST(x) _save_##x
1813 #define NAME(x) _save_##x
1814 #define NAME_ES(x) _save_##x##ARB
1816 #include "vbo_init_tmp.h"
1821 * Initialize the dispatch table with the VBO functions for display
1825 vbo_initialize_save_dispatch(const struct gl_context *ctx,
1826 struct _glapi_table *exec)
1828 SET_DrawArrays(exec, _save_OBE_DrawArrays);
1829 SET_MultiDrawArrays(exec, _save_OBE_MultiDrawArrays);
1830 SET_DrawElements(exec, _save_OBE_DrawElements);
1831 SET_DrawElementsBaseVertex(exec, _save_OBE_DrawElementsBaseVertex);
1832 SET_DrawRangeElements(exec, _save_OBE_DrawRangeElements);
1833 SET_MultiDrawElementsEXT(exec, _save_OBE_MultiDrawElements);
1834 SET_MultiDrawElementsBaseVertex(exec, _save_OBE_MultiDrawElementsBaseVertex);
1835 SET_Rectf(exec, _save_OBE_Rectf);
1836 SET_Rectd(exec, _save_OBE_Rectd);
1837 SET_Rectdv(exec, _save_OBE_Rectdv);
1838 SET_Rectfv(exec, _save_OBE_Rectfv);
1839 SET_Recti(exec, _save_OBE_Recti);
1840 SET_Rectiv(exec, _save_OBE_Rectiv);
1841 SET_Rects(exec, _save_OBE_Rects);
1842 SET_Rectsv(exec, _save_OBE_Rectsv);
1844 /* Note: other glDraw functins aren't compiled into display lists */
1850 vbo_save_SaveFlushVertices(struct gl_context *ctx)
1852 struct vbo_save_context *save = &vbo_context(ctx)->save;
1854 /* Noop when we are actually active:
1856 if (ctx->Driver.CurrentSavePrimitive <= PRIM_MAX)
1859 if (save->vert_count || save->prim_count)
1860 compile_vertex_list(ctx);
1862 copy_to_current(ctx);
1864 reset_counters(ctx);
1865 ctx->Driver.SaveNeedFlush = GL_FALSE;
1870 * Called from glNewList when we're starting to compile a display list.
1873 vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode)
1875 struct vbo_save_context *save = &vbo_context(ctx)->save;
1880 if (!save->prim_store)
1881 save->prim_store = alloc_prim_store(0);
1883 if (!save->vertex_store)
1884 save->vertex_store = alloc_vertex_store(ctx, 0);
1886 save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
1889 reset_counters(ctx);
1890 ctx->Driver.SaveNeedFlush = GL_FALSE;
1895 * Called from glEndList when we're finished compiling a display list.
1898 vbo_save_EndList(struct gl_context *ctx)
1900 struct vbo_save_context *save = &vbo_context(ctx)->save;
1902 /* EndList called inside a (saved) Begin/End pair?
1904 if (_mesa_inside_dlist_begin_end(ctx)) {
1905 if (save->prim_count > 0) {
1906 GLint i = save->prim_count - 1;
1907 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1908 save->prims[i].end = 0;
1909 save->prims[i].count = save->vert_count - save->prims[i].start;
1912 /* Make sure this vertex list gets replayed by the "loopback"
1915 save->dangling_attr_ref = GL_TRUE;
1916 vbo_save_SaveFlushVertices(ctx);
1918 /* Swap out this vertex format while outside begin/end. Any color,
1919 * etc. received between here and the next begin will be compiled
1922 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1925 vbo_save_unmap_vertex_store(ctx, save->vertex_store);
1927 assert(save->vertex_size == 0);
1932 * Called from the display list code when we're about to execute a
1936 vbo_save_BeginCallList(struct gl_context *ctx, struct gl_display_list *dlist)
1938 struct vbo_save_context *save = &vbo_context(ctx)->save;
1939 save->replay_flags |= dlist->Flags;
1944 * Called from the display list code when we're finished executing a
1948 vbo_save_EndCallList(struct gl_context *ctx)
1950 struct vbo_save_context *save = &vbo_context(ctx)->save;
1952 if (ctx->ListState.CallDepth == 1)
1953 save->replay_flags = 0;
1958 * Called during context creation/init.
1961 current_init(struct gl_context *ctx)
1963 struct vbo_save_context *save = &vbo_context(ctx)->save;
1966 for (i = VBO_ATTRIB_POS; i <= VBO_ATTRIB_GENERIC15; i++) {
1967 const GLuint j = i - VBO_ATTRIB_POS;
1968 assert(j < VERT_ATTRIB_MAX);
1969 save->currentsz[i] = &ctx->ListState.ActiveAttribSize[j];
1970 save->current[i] = (fi_type *) ctx->ListState.CurrentAttrib[j];
1973 for (i = VBO_ATTRIB_FIRST_MATERIAL; i <= VBO_ATTRIB_LAST_MATERIAL; i++) {
1974 const GLuint j = i - VBO_ATTRIB_FIRST_MATERIAL;
1975 assert(j < MAT_ATTRIB_MAX);
1976 save->currentsz[i] = &ctx->ListState.ActiveMaterialSize[j];
1977 save->current[i] = (fi_type *) ctx->ListState.CurrentMaterial[j];
1983 * Initialize the display list compiler. Called during context creation.
1986 vbo_save_api_init(struct vbo_save_context *save)
1988 struct gl_context *ctx = gl_context_from_vbo_save(save);
1992 _mesa_noop_vtxfmt_init(ctx, &save->vtxfmt_noop);