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
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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"
88 #include "vbo_private.h"
96 * Display list flag only used by this VBO code.
98 #define DLIST_DANGLING_REFS 0x1
101 /* An interesting VBO number/name to help with debugging */
102 #define VBO_BUF_ID 12345
104 static void GLAPIENTRY
105 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params);
107 static void GLAPIENTRY
108 _save_EvalCoord1f(GLfloat u);
110 static void GLAPIENTRY
111 _save_EvalCoord2f(GLfloat u, GLfloat v);
114 * NOTE: Old 'parity' issue is gone, but copying can still be
115 * wrong-footed on replay.
118 copy_vertices(struct gl_context *ctx,
119 const struct vbo_save_vertex_list *node,
120 const fi_type * src_buffer)
122 struct vbo_save_context *save = &vbo_context(ctx)->save;
123 struct _mesa_prim *prim = &node->prims[node->prim_count - 1];
124 GLuint sz = save->vertex_size;
125 const fi_type *src = src_buffer + prim->start * sz;
126 fi_type *dst = save->copied.buffer;
131 return vbo_copy_vertices(ctx, prim->mode, prim, sz, true, dst, src);
135 static struct vbo_save_vertex_store *
136 alloc_vertex_store(struct gl_context *ctx, int vertex_count)
138 struct vbo_save_context *save = &vbo_context(ctx)->save;
139 struct vbo_save_vertex_store *vertex_store =
140 CALLOC_STRUCT(vbo_save_vertex_store);
142 int size = MAX2(vertex_count * save->vertex_size, VBO_SAVE_BUFFER_SIZE);
144 /* obj->Name needs to be non-zero, but won't ever be examined more
145 * closely than that. In particular these buffers won't be entered
146 * into the hash and can never be confused with ones visible to the
147 * user. Perhaps there could be a special number for internal
150 vertex_store->bufferobj = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID);
151 if (vertex_store->bufferobj) {
152 save->out_of_memory =
153 !ctx->Driver.BufferData(ctx,
155 size * sizeof(GLfloat),
156 NULL, GL_STATIC_DRAW_ARB,
158 GL_DYNAMIC_STORAGE_BIT,
159 vertex_store->bufferobj);
162 save->out_of_memory = GL_TRUE;
165 if (save->out_of_memory) {
166 _mesa_error(ctx, GL_OUT_OF_MEMORY, "internal VBO allocation");
167 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
170 vertex_store->buffer_map = NULL;
171 vertex_store->used = 0;
178 free_vertex_store(struct gl_context *ctx,
179 struct vbo_save_vertex_store *vertex_store)
181 assert(!vertex_store->buffer_map);
183 if (vertex_store->bufferobj) {
184 _mesa_reference_buffer_object(ctx, &vertex_store->bufferobj, NULL);
192 vbo_save_map_vertex_store(struct gl_context *ctx,
193 struct vbo_save_vertex_store *vertex_store)
195 const GLbitfield access = (GL_MAP_WRITE_BIT |
196 GL_MAP_INVALIDATE_RANGE_BIT |
197 GL_MAP_UNSYNCHRONIZED_BIT |
198 GL_MAP_FLUSH_EXPLICIT_BIT |
201 assert(vertex_store->bufferobj);
202 assert(!vertex_store->buffer_map); /* the buffer should not be mapped */
204 if (vertex_store->bufferobj->Size > 0) {
205 /* Map the remaining free space in the VBO */
206 GLintptr offset = vertex_store->used * sizeof(GLfloat);
207 GLsizeiptr size = vertex_store->bufferobj->Size - offset;
208 fi_type *range = (fi_type *)
209 ctx->Driver.MapBufferRange(ctx, offset, size, access,
210 vertex_store->bufferobj,
213 /* compute address of start of whole buffer (needed elsewhere) */
214 vertex_store->buffer_map = range - vertex_store->used;
215 assert(vertex_store->buffer_map);
219 vertex_store->buffer_map = NULL;
224 /* probably ran out of memory for buffers */
231 vbo_save_unmap_vertex_store(struct gl_context *ctx,
232 struct vbo_save_vertex_store *vertex_store)
234 if (vertex_store->bufferobj->Size > 0) {
236 GLsizeiptr length = vertex_store->used * sizeof(GLfloat)
237 - vertex_store->bufferobj->Mappings[MAP_INTERNAL].Offset;
239 /* Explicitly flush the region we wrote to */
240 ctx->Driver.FlushMappedBufferRange(ctx, offset, length,
241 vertex_store->bufferobj,
244 ctx->Driver.UnmapBuffer(ctx, vertex_store->bufferobj, MAP_INTERNAL);
246 vertex_store->buffer_map = NULL;
250 static struct vbo_save_primitive_store *
251 alloc_prim_store(int prim_count)
253 struct vbo_save_primitive_store *store =
254 CALLOC_STRUCT(vbo_save_primitive_store);
255 store->size = MAX2(prim_count, VBO_SAVE_PRIM_SIZE);
256 store->prims = calloc(store->size, sizeof(struct _mesa_prim));
264 reset_counters(struct gl_context *ctx)
266 struct vbo_save_context *save = &vbo_context(ctx)->save;
268 save->prims = save->prim_store->prims + save->prim_store->used;
269 save->buffer_map = save->vertex_store->buffer_map + save->vertex_store->used;
271 assert(save->buffer_map == save->buffer_ptr);
273 if (save->vertex_size)
274 save->max_vert = (save->vertex_store->bufferobj->Size / sizeof(float) - save->vertex_store->used) /
279 save->vert_count = 0;
280 save->prim_count = 0;
281 save->prim_max = save->prim_store->size - save->prim_store->used;
282 save->dangling_attr_ref = GL_FALSE;
286 * For a list of prims, try merging prims that can just be extensions of the
290 merge_prims(struct gl_context *ctx, struct _mesa_prim *prim_list,
294 struct _mesa_prim *prev_prim = prim_list;
296 for (i = 1; i < *prim_count; i++) {
297 struct _mesa_prim *this_prim = prim_list + i;
299 vbo_try_prim_conversion(this_prim);
301 if (vbo_merge_draws(ctx, true, prev_prim, this_prim)) {
302 /* We've found a prim that just extend the previous one. Tack it
303 * onto the previous one, and let this primitive struct get dropped.
308 /* If any previous primitives have been dropped, then we need to copy
309 * this later one into the next available slot.
312 if (prev_prim != this_prim)
313 *prev_prim = *this_prim;
316 *prim_count = prev_prim - prim_list + 1;
321 * Convert GL_LINE_LOOP primitive into GL_LINE_STRIP so that drivers
322 * don't have to worry about handling the _mesa_prim::begin/end flags.
323 * See https://bugs.freedesktop.org/show_bug.cgi?id=81174
326 convert_line_loop_to_strip(struct vbo_save_context *save,
327 struct vbo_save_vertex_list *node)
329 struct _mesa_prim *prim = &node->prims[node->prim_count - 1];
331 assert(prim->mode == GL_LINE_LOOP);
334 /* Copy the 0th vertex to end of the buffer and extend the
335 * vertex count by one to finish the line loop.
337 const GLuint sz = save->vertex_size;
339 const fi_type *src = save->buffer_map + prim->start * sz;
341 fi_type *dst = save->buffer_map + (prim->start + prim->count) * sz;
343 memcpy(dst, src, sz * sizeof(float));
346 node->vertex_count++;
348 save->buffer_ptr += sz;
349 save->vertex_store->used += sz;
353 /* Drawing the second or later section of a long line loop.
354 * Skip the 0th vertex.
360 prim->mode = GL_LINE_STRIP;
364 /* Compare the present vao if it has the same setup. */
366 compare_vao(gl_vertex_processing_mode mode,
367 const struct gl_vertex_array_object *vao,
368 const struct gl_buffer_object *bo, GLintptr buffer_offset,
369 GLuint stride, GLbitfield64 vao_enabled,
370 const GLubyte size[VBO_ATTRIB_MAX],
371 const GLenum16 type[VBO_ATTRIB_MAX],
372 const GLuint offset[VBO_ATTRIB_MAX])
377 /* If the enabled arrays are not the same we are not equal. */
378 if (vao_enabled != vao->Enabled)
381 /* Check the buffer binding at 0 */
382 if (vao->BufferBinding[0].BufferObj != bo)
384 /* BufferBinding[0].Offset != buffer_offset is checked per attribute */
385 if (vao->BufferBinding[0].Stride != stride)
387 assert(vao->BufferBinding[0].InstanceDivisor == 0);
389 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space */
390 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
392 /* Now check the enabled arrays */
393 GLbitfield mask = vao_enabled;
395 const int attr = u_bit_scan(&mask);
396 const unsigned char vbo_attr = vao_to_vbo_map[attr];
397 const GLenum16 tp = type[vbo_attr];
398 const GLintptr off = offset[vbo_attr] + buffer_offset;
399 const struct gl_array_attributes *attrib = &vao->VertexAttrib[attr];
400 if (attrib->RelativeOffset + vao->BufferBinding[0].Offset != off)
402 if (attrib->Format.Type != tp)
404 if (attrib->Format.Size != size[vbo_attr])
406 assert(attrib->Format.Format == GL_RGBA);
407 assert(attrib->Format.Normalized == GL_FALSE);
408 assert(attrib->Format.Integer == vbo_attrtype_to_integer_flag(tp));
409 assert(attrib->Format.Doubles == vbo_attrtype_to_double_flag(tp));
410 assert(attrib->BufferBindingIndex == 0);
417 /* Create or reuse the vao for the vertex processing mode. */
419 update_vao(struct gl_context *ctx,
420 gl_vertex_processing_mode mode,
421 struct gl_vertex_array_object **vao,
422 struct gl_buffer_object *bo, GLintptr buffer_offset,
423 GLuint stride, GLbitfield64 vbo_enabled,
424 const GLubyte size[VBO_ATTRIB_MAX],
425 const GLenum16 type[VBO_ATTRIB_MAX],
426 const GLuint offset[VBO_ATTRIB_MAX])
428 /* Compute the bitmasks of vao_enabled arrays */
429 GLbitfield vao_enabled = _vbo_get_vao_enabled_from_vbo(mode, vbo_enabled);
432 * Check if we can possibly reuse the exisiting one.
433 * In the long term we should reset them when something changes.
435 if (compare_vao(mode, *vao, bo, buffer_offset, stride,
436 vao_enabled, size, type, offset))
439 /* The initial refcount is 1 */
440 _mesa_reference_vao(ctx, vao, NULL);
441 *vao = _mesa_new_vao(ctx, ~((GLuint)0));
444 * assert(stride <= ctx->Const.MaxVertexAttribStride);
445 * MaxVertexAttribStride is not set for drivers that does not
446 * expose GL 44 or GLES 31.
449 /* Bind the buffer object at binding point 0 */
450 _mesa_bind_vertex_buffer(ctx, *vao, 0, bo, buffer_offset, stride, false,
453 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space
454 * Note that the position/generic0 aliasing is done in the VAO.
456 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
457 /* Now set the enable arrays */
458 GLbitfield mask = vao_enabled;
460 const int vao_attr = u_bit_scan(&mask);
461 const GLubyte vbo_attr = vao_to_vbo_map[vao_attr];
462 assert(offset[vbo_attr] <= ctx->Const.MaxVertexAttribRelativeOffset);
464 _vbo_set_attrib_format(ctx, *vao, vao_attr, buffer_offset,
465 size[vbo_attr], type[vbo_attr], offset[vbo_attr]);
466 _mesa_vertex_attrib_binding(ctx, *vao, vao_attr, 0);
468 _mesa_enable_vertex_array_attribs(ctx, *vao, vao_enabled);
469 assert(vao_enabled == (*vao)->Enabled);
470 assert((vao_enabled & ~(*vao)->VertexAttribBufferMask) == 0);
472 /* Finalize and freeze the VAO */
473 _mesa_set_vao_immutable(ctx, *vao);
478 realloc_storage(struct gl_context *ctx, int prim_count, int vertex_count)
480 struct vbo_save_context *save = &vbo_context(ctx)->save;
481 if (vertex_count >= 0) {
484 vbo_save_unmap_vertex_store(ctx, save->vertex_store);
486 /* Release old reference:
488 free_vertex_store(ctx, save->vertex_store);
489 save->vertex_store = NULL;
490 /* When we have a new vbo, we will for sure need a new vao */
491 for (gl_vertex_processing_mode vpm = 0; vpm < VP_MODE_MAX; ++vpm)
492 _mesa_reference_vao(ctx, &save->VAO[vpm], NULL);
494 /* Allocate and map new store:
496 save->vertex_store = alloc_vertex_store(ctx, vertex_count);
497 save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
498 save->out_of_memory = save->buffer_ptr == NULL;
501 if (prim_count >= 0) {
502 if (--save->prim_store->refcount == 0) {
503 free(save->prim_store->prims);
504 free(save->prim_store);
506 save->prim_store = alloc_prim_store(prim_count);
512 * Insert the active immediate struct onto the display list currently
516 compile_vertex_list(struct gl_context *ctx)
518 struct vbo_save_context *save = &vbo_context(ctx)->save;
519 struct vbo_save_vertex_list *node;
521 /* Allocate space for this structure in the display list currently
524 node = (struct vbo_save_vertex_list *)
525 _mesa_dlist_alloc_aligned(ctx, save->opcode_vertex_list, sizeof(*node));
530 /* Make sure the pointer is aligned to the size of a pointer */
531 assert((GLintptr) node % sizeof(void *) == 0);
533 /* Duplicate our template, increment refcounts to the storage structs:
535 GLintptr old_offset = 0;
537 old_offset = save->VAO[0]->BufferBinding[0].Offset
538 + save->VAO[0]->VertexAttrib[VERT_ATTRIB_POS].RelativeOffset;
540 const GLsizei stride = save->vertex_size*sizeof(GLfloat);
541 GLintptr buffer_offset =
542 (save->buffer_map - save->vertex_store->buffer_map) * sizeof(GLfloat);
543 assert(old_offset <= buffer_offset);
544 const GLintptr offset_diff = buffer_offset - old_offset;
545 GLuint start_offset = 0;
546 if (offset_diff > 0 && stride > 0 && offset_diff % stride == 0) {
547 /* The vertex size is an exact multiple of the buffer offset.
548 * This means that we can use zero-based vertex attribute pointers
549 * and specify the start of the primitive with the _mesa_prim::start
550 * field. This results in issuing several draw calls with identical
551 * vertex attribute information. This can result in fewer state
552 * changes in drivers. In particular, the Gallium CSO module will
553 * filter out redundant vertex buffer changes.
555 /* We cannot immediately update the primitives as some methods below
556 * still need the uncorrected start vertices
558 start_offset = offset_diff/stride;
559 assert(old_offset == buffer_offset - offset_diff);
560 buffer_offset = old_offset;
562 GLuint offsets[VBO_ATTRIB_MAX];
563 for (unsigned i = 0, offset = 0; i < VBO_ATTRIB_MAX; ++i) {
565 offset += save->attrsz[i] * sizeof(GLfloat);
567 node->vertex_count = save->vert_count;
568 node->wrap_count = save->copied.nr;
569 node->prims = save->prims;
570 node->prim_count = save->prim_count;
571 node->prim_store = save->prim_store;
573 /* Create a pair of VAOs for the possible VERTEX_PROCESSING_MODEs
574 * Note that this may reuse the previous one of possible.
576 for (gl_vertex_processing_mode vpm = VP_MODE_FF; vpm < VP_MODE_MAX; ++vpm) {
577 /* create or reuse the vao */
578 update_vao(ctx, vpm, &save->VAO[vpm],
579 save->vertex_store->bufferobj, buffer_offset, stride,
580 save->enabled, save->attrsz, save->attrtype, offsets);
581 /* Reference the vao in the dlist */
582 node->VAO[vpm] = NULL;
583 _mesa_reference_vao(ctx, &node->VAO[vpm], save->VAO[vpm]);
586 node->prim_store->refcount++;
588 if (save->no_current_update) {
589 node->current_data = NULL;
592 GLuint current_size = save->vertex_size - save->attrsz[0];
593 node->current_data = NULL;
596 node->current_data = malloc(current_size * sizeof(GLfloat));
597 if (node->current_data) {
598 const char *buffer = (const char *)save->buffer_map;
599 unsigned attr_offset = save->attrsz[0] * sizeof(GLfloat);
600 unsigned vertex_offset = 0;
602 if (node->vertex_count)
603 vertex_offset = (node->vertex_count - 1) * stride;
605 memcpy(node->current_data, buffer + vertex_offset + attr_offset,
606 current_size * sizeof(GLfloat));
608 _mesa_error(ctx, GL_OUT_OF_MEMORY, "Current value allocation");
613 assert(save->attrsz[VBO_ATTRIB_POS] != 0 || node->vertex_count == 0);
615 if (save->dangling_attr_ref)
616 ctx->ListState.CurrentList->Flags |= DLIST_DANGLING_REFS;
618 save->vertex_store->used += save->vertex_size * node->vertex_count;
619 save->prim_store->used += node->prim_count;
621 /* Copy duplicated vertices
623 save->copied.nr = copy_vertices(ctx, node, save->buffer_map);
625 if (node->prims[node->prim_count - 1].mode == GL_LINE_LOOP) {
626 convert_line_loop_to_strip(save, node);
629 merge_prims(ctx, node->prims, &node->prim_count);
631 /* Correct the primitive starts, we can only do this here as copy_vertices
632 * and convert_line_loop_to_strip above consume the uncorrected starts.
633 * On the other hand the _vbo_loopback_vertex_list call below needs the
634 * primitves to be corrected already.
636 for (unsigned i = 0; i < node->prim_count; i++) {
637 node->prims[i].start += start_offset;
640 /* Create an index buffer. */
641 node->min_index = node->max_index = 0;
642 if (save->vert_count) {
643 int end = node->prims[node->prim_count - 1].start +
644 node->prims[node->prim_count - 1].count;
645 int total_vert_count = end - node->prims[0].start;
646 /* Estimate for the worst case: all prims are line strips (the +1 is because
647 * wrap_buffers may call use but the last primitive may not be complete) */
648 int max_indices_count = MAX2(total_vert_count * 2 - (node->prim_count * 2) + 1,
650 int size = max_indices_count * sizeof(uint32_t);
651 uint32_t* indices = (uint32_t*) malloc(size);
652 uint32_t max_index = 0, min_index = 0xFFFFFFFF;
656 int last_valid_prim = -1;
657 /* Construct indices array. */
658 for (unsigned i = 0; i < node->prim_count; i++) {
659 assert(node->prims[i].basevertex == 0);
660 GLubyte mode = node->prims[i].mode;
662 int vertex_count = node->prims[i].count;
667 /* Line strips get converted to lines */
668 if (mode == GL_LINE_STRIP)
671 /* If 2 consecutive prims use the same mode => merge them. */
672 bool merge_prims = last_valid_prim >= 0 &&
673 mode == node->prims[last_valid_prim].mode &&
674 mode != GL_LINE_LOOP && mode != GL_TRIANGLE_FAN &&
675 mode != GL_QUAD_STRIP && mode != GL_POLYGON &&
678 /* To be able to merge consecutive triangle strips we need to insert
679 * a degenerate triangle.
682 mode == GL_TRIANGLE_STRIP) {
683 /* Insert a degenerate triangle */
684 assert(node->prims[last_valid_prim].mode == GL_TRIANGLE_STRIP);
685 unsigned tri_count = node->prims[last_valid_prim].count - 2;
687 indices[idx] = indices[idx - 1];
688 indices[idx + 1] = node->prims[i].start;
690 node->prims[last_valid_prim].count += 2;
693 /* Add another index to preserve winding order */
694 indices[idx++] = node->prims[i].start;
695 node->prims[last_valid_prim].count++;
701 /* Convert line strips to lines if it'll allow if the previous
702 * prim mode is GL_LINES (so merge_prims is true) or if the next
703 * primitive mode is GL_LINES or GL_LINE_LOOP.
705 if (node->prims[i].mode == GL_LINE_STRIP &&
707 (i < node->prim_count - 1 &&
708 (node->prims[i + 1].mode == GL_LINE_STRIP ||
709 node->prims[i + 1].mode == GL_LINES)))) {
710 for (unsigned j = 0; j < vertex_count; j++) {
711 indices[idx++] = node->prims[i].start + j;
712 /* Repeat all but the first/last indices. */
713 if (j && j != vertex_count - 1) {
714 indices[idx++] = node->prims[i].start + j;
715 node->prims[i].count++;
718 node->prims[i].mode = mode;
720 for (unsigned j = 0; j < vertex_count; j++) {
721 indices[idx++] = node->prims[i].start + j;
725 min_index = MIN2(min_index, indices[start]);
726 max_index = MAX2(max_index, indices[idx - 1]);
729 /* Update vertex count. */
730 node->prims[last_valid_prim].count += idx - start;
732 /* Keep this primitive */
733 last_valid_prim += 1;
734 assert(last_valid_prim <= i);
735 node->prims[i].start = start;
736 node->prims[last_valid_prim] = node->prims[i];
743 assert(idx <= max_indices_count);
745 node->prim_count = last_valid_prim + 1;
747 node->ib.count = idx;
748 node->ib.index_size_shift = (GL_UNSIGNED_INT - GL_UNSIGNED_BYTE) >> 1;
749 node->min_index = min_index;
750 node->max_index = max_index;
752 node->ib.obj = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID + 1);
753 bool success = ctx->Driver.BufferData(ctx,
754 GL_ELEMENT_ARRAY_BUFFER_ARB,
755 idx * sizeof(uint32_t), indices,
756 GL_STATIC_DRAW_ARB, GL_MAP_WRITE_BIT,
762 ctx->Driver.DeleteBuffer(ctx, node->ib.obj);
763 _mesa_error(ctx, GL_OUT_OF_MEMORY, "IB allocation");
767 node->vertex_count = 0;
768 node->prim_count = 0;
776 /* Deal with GL_COMPILE_AND_EXECUTE:
778 if (ctx->ExecuteFlag) {
779 struct _glapi_table *dispatch = GET_DISPATCH();
781 _glapi_set_dispatch(ctx->Exec);
783 /* Note that the range of referenced vertices must be mapped already */
784 _vbo_loopback_vertex_list(ctx, node);
786 _glapi_set_dispatch(dispatch);
789 /* Decide whether the storage structs are full, or can be used for
790 * the next vertex lists as well.
792 if (save->vertex_store->used >
793 save->vertex_store->bufferobj->Size / sizeof(float) - 16 * (save->vertex_size + 4)) {
794 realloc_storage(ctx, -1, 0);
797 /* update buffer_ptr for next vertex */
798 save->buffer_ptr = save->vertex_store->buffer_map
799 + save->vertex_store->used;
802 if (save->prim_store->used > save->prim_store->size - 6) {
803 realloc_storage(ctx, 0, -1);
806 /* Reset our structures for the next run of vertices:
813 * This is called when we fill a vertex buffer before we hit a glEnd().
815 * TODO -- If no new vertices have been stored, don't bother saving it.
818 wrap_buffers(struct gl_context *ctx)
820 struct vbo_save_context *save = &vbo_context(ctx)->save;
821 GLint i = save->prim_count - 1;
824 assert(i < (GLint) save->prim_max);
827 /* Close off in-progress primitive.
829 save->prims[i].count = (save->vert_count - save->prims[i].start);
830 mode = save->prims[i].mode;
832 /* store the copied vertices, and allocate a new list.
834 compile_vertex_list(ctx);
836 /* Restart interrupted primitive
838 save->prims[0].mode = mode;
839 save->prims[0].begin = 0;
840 save->prims[0].end = 0;
841 save->prims[0].start = 0;
842 save->prims[0].count = 0;
843 save->prim_count = 1;
848 * Called only when buffers are wrapped as the result of filling the
849 * vertex_store struct.
852 wrap_filled_vertex(struct gl_context *ctx)
854 struct vbo_save_context *save = &vbo_context(ctx)->save;
855 unsigned numComponents;
857 /* Emit a glEnd to close off the last vertex list.
861 /* Copy stored stored vertices to start of new list.
863 assert(save->max_vert - save->vert_count > save->copied.nr);
865 numComponents = save->copied.nr * save->vertex_size;
866 memcpy(save->buffer_ptr,
868 numComponents * sizeof(fi_type));
869 save->buffer_ptr += numComponents;
870 save->vert_count += save->copied.nr;
875 copy_to_current(struct gl_context *ctx)
877 struct vbo_save_context *save = &vbo_context(ctx)->save;
878 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
881 const int i = u_bit_scan64(&enabled);
882 assert(save->attrsz[i]);
884 if (save->attrtype[i] == GL_DOUBLE ||
885 save->attrtype[i] == GL_UNSIGNED_INT64_ARB)
886 memcpy(save->current[i], save->attrptr[i], save->attrsz[i] * sizeof(GLfloat));
888 COPY_CLEAN_4V_TYPE_AS_UNION(save->current[i], save->attrsz[i],
889 save->attrptr[i], save->attrtype[i]);
895 copy_from_current(struct gl_context *ctx)
897 struct vbo_save_context *save = &vbo_context(ctx)->save;
898 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
901 const int i = u_bit_scan64(&enabled);
903 switch (save->attrsz[i]) {
905 save->attrptr[i][3] = save->current[i][3];
908 save->attrptr[i][2] = save->current[i][2];
911 save->attrptr[i][1] = save->current[i][1];
914 save->attrptr[i][0] = save->current[i][0];
917 unreachable("Unexpected vertex attribute size");
924 * Called when we increase the size of a vertex attribute. For example,
925 * if we've seen one or more glTexCoord2f() calls and now we get a
926 * glTexCoord3f() call.
927 * Flush existing data, set new attrib size, replay copied vertices.
930 upgrade_vertex(struct gl_context *ctx, GLuint attr, GLuint newsz)
932 struct vbo_save_context *save = &vbo_context(ctx)->save;
937 /* Store the current run of vertices, and emit a GL_END. Emit a
938 * BEGIN in the new buffer.
940 if (save->vert_count)
943 assert(save->copied.nr == 0);
945 /* Do a COPY_TO_CURRENT to ensure back-copying works for the case
946 * when the attribute already exists in the vertex and is having
947 * its size increased.
949 copy_to_current(ctx);
953 oldsz = save->attrsz[attr];
954 save->attrsz[attr] = newsz;
955 save->enabled |= BITFIELD64_BIT(attr);
957 save->vertex_size += newsz - oldsz;
958 save->max_vert = ((save->vertex_store->bufferobj->Size / sizeof(float) -
959 save->vertex_store->used) /
961 save->vert_count = 0;
963 /* Recalculate all the attrptr[] values:
966 for (i = 0; i < VBO_ATTRIB_MAX; i++) {
967 if (save->attrsz[i]) {
968 save->attrptr[i] = tmp;
969 tmp += save->attrsz[i];
972 save->attrptr[i] = NULL; /* will not be dereferenced. */
976 /* Copy from current to repopulate the vertex with correct values.
978 copy_from_current(ctx);
980 /* Replay stored vertices to translate them to new format here.
982 * If there are copied vertices and the new (upgraded) attribute
983 * has not been defined before, this list is somewhat degenerate,
984 * and will need fixup at runtime.
986 if (save->copied.nr) {
987 const fi_type *data = save->copied.buffer;
988 fi_type *dest = save->buffer_map;
990 /* Need to note this and fix up at runtime (or loopback):
992 if (attr != VBO_ATTRIB_POS && save->currentsz[attr][0] == 0) {
994 save->dangling_attr_ref = GL_TRUE;
997 for (i = 0; i < save->copied.nr; i++) {
998 GLbitfield64 enabled = save->enabled;
1000 const int j = u_bit_scan64(&enabled);
1001 assert(save->attrsz[j]);
1004 COPY_CLEAN_4V_TYPE_AS_UNION(dest, oldsz, data,
1010 COPY_SZ_4V(dest, newsz, save->current[attr]);
1015 GLint sz = save->attrsz[j];
1016 COPY_SZ_4V(dest, sz, data);
1023 save->buffer_ptr = dest;
1024 save->vert_count += save->copied.nr;
1030 * This is called when the size of a vertex attribute changes.
1031 * For example, after seeing one or more glTexCoord2f() calls we
1032 * get a glTexCoord4f() or glTexCoord1f() call.
1035 fixup_vertex(struct gl_context *ctx, GLuint attr,
1036 GLuint sz, GLenum newType)
1038 struct vbo_save_context *save = &vbo_context(ctx)->save;
1040 if (sz > save->attrsz[attr] ||
1041 newType != save->attrtype[attr]) {
1042 /* New size is larger. Need to flush existing vertices and get
1043 * an enlarged vertex format.
1045 upgrade_vertex(ctx, attr, sz);
1047 else if (sz < save->active_sz[attr]) {
1049 const fi_type *id = vbo_get_default_vals_as_union(save->attrtype[attr]);
1051 /* New size is equal or smaller - just need to fill in some
1054 for (i = sz; i <= save->attrsz[attr]; i++)
1055 save->attrptr[attr][i - 1] = id[i - 1];
1058 save->active_sz[attr] = sz;
1063 * Reset the current size of all vertex attributes to the default
1064 * value of 0. This signals that we haven't yet seen any per-vertex
1065 * commands such as glNormal3f() or glTexCoord2f().
1068 reset_vertex(struct gl_context *ctx)
1070 struct vbo_save_context *save = &vbo_context(ctx)->save;
1072 while (save->enabled) {
1073 const int i = u_bit_scan64(&save->enabled);
1074 assert(save->attrsz[i]);
1075 save->attrsz[i] = 0;
1076 save->active_sz[i] = 0;
1079 save->vertex_size = 0;
1084 * If index=0, does glVertexAttrib*() alias glVertex() to emit a vertex?
1085 * It depends on a few things, including whether we're inside or outside
1089 is_vertex_position(const struct gl_context *ctx, GLuint index)
1091 return (index == 0 &&
1092 _mesa_attr_zero_aliases_vertex(ctx) &&
1093 _mesa_inside_dlist_begin_end(ctx));
1098 #define ERROR(err) _mesa_compile_error(ctx, err, __func__);
1101 /* Only one size for each attribute may be active at once. Eg. if
1102 * Color3f is installed/active, then Color4f may not be, even if the
1103 * vertex actually contains 4 color coordinates. This is because the
1104 * 3f version won't otherwise set color[3] to 1.0 -- this is the job
1105 * of the chooser function when switching between Color4f and Color3f.
1107 #define ATTR_UNION(A, N, T, C, V0, V1, V2, V3) \
1109 struct vbo_save_context *save = &vbo_context(ctx)->save; \
1110 int sz = (sizeof(C) / sizeof(GLfloat)); \
1112 if (save->active_sz[A] != N) \
1113 fixup_vertex(ctx, A, N * sz, T); \
1116 C *dest = (C *)save->attrptr[A]; \
1117 if (N>0) dest[0] = V0; \
1118 if (N>1) dest[1] = V1; \
1119 if (N>2) dest[2] = V2; \
1120 if (N>3) dest[3] = V3; \
1121 save->attrtype[A] = T; \
1127 for (i = 0; i < save->vertex_size; i++) \
1128 save->buffer_ptr[i] = save->vertex[i]; \
1130 save->buffer_ptr += save->vertex_size; \
1132 if (++save->vert_count >= save->max_vert) \
1133 wrap_filled_vertex(ctx); \
1137 #define TAG(x) _save_##x
1139 #include "vbo_attrib_tmp.h"
1143 #define MAT( ATTR, N, face, params ) \
1145 if (face != GL_BACK) \
1146 MAT_ATTR( ATTR, N, params ); /* front */ \
1147 if (face != GL_FRONT) \
1148 MAT_ATTR( ATTR + 1, N, params ); /* back */ \
1153 * Save a glMaterial call found between glBegin/End.
1154 * glMaterial calls outside Begin/End are handled in dlist.c.
1156 static void GLAPIENTRY
1157 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params)
1159 GET_CURRENT_CONTEXT(ctx);
1161 if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
1162 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(face)");
1168 MAT(VBO_ATTRIB_MAT_FRONT_EMISSION, 4, face, params);
1171 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1174 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1177 MAT(VBO_ATTRIB_MAT_FRONT_SPECULAR, 4, face, params);
1180 if (*params < 0 || *params > ctx->Const.MaxShininess) {
1181 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glMaterial(shininess)");
1184 MAT(VBO_ATTRIB_MAT_FRONT_SHININESS, 1, face, params);
1187 case GL_COLOR_INDEXES:
1188 MAT(VBO_ATTRIB_MAT_FRONT_INDEXES, 3, face, params);
1190 case GL_AMBIENT_AND_DIFFUSE:
1191 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1192 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1195 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(pname)");
1201 /* Cope with EvalCoord/CallList called within a begin/end object:
1202 * -- Flush current buffer
1203 * -- Fallback to opcodes for the rest of the begin/end object.
1206 dlist_fallback(struct gl_context *ctx)
1208 struct vbo_save_context *save = &vbo_context(ctx)->save;
1210 if (save->vert_count || save->prim_count) {
1211 if (save->prim_count > 0) {
1212 /* Close off in-progress primitive. */
1213 GLint i = save->prim_count - 1;
1214 save->prims[i].count = save->vert_count - save->prims[i].start;
1217 /* Need to replay this display list with loopback,
1218 * unfortunately, otherwise this primitive won't be handled
1221 save->dangling_attr_ref = GL_TRUE;
1223 compile_vertex_list(ctx);
1226 copy_to_current(ctx);
1228 reset_counters(ctx);
1229 if (save->out_of_memory) {
1230 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1233 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1235 ctx->Driver.SaveNeedFlush = GL_FALSE;
1239 static void GLAPIENTRY
1240 _save_EvalCoord1f(GLfloat u)
1242 GET_CURRENT_CONTEXT(ctx);
1243 dlist_fallback(ctx);
1244 CALL_EvalCoord1f(ctx->Save, (u));
1247 static void GLAPIENTRY
1248 _save_EvalCoord1fv(const GLfloat * v)
1250 GET_CURRENT_CONTEXT(ctx);
1251 dlist_fallback(ctx);
1252 CALL_EvalCoord1fv(ctx->Save, (v));
1255 static void GLAPIENTRY
1256 _save_EvalCoord2f(GLfloat u, GLfloat v)
1258 GET_CURRENT_CONTEXT(ctx);
1259 dlist_fallback(ctx);
1260 CALL_EvalCoord2f(ctx->Save, (u, v));
1263 static void GLAPIENTRY
1264 _save_EvalCoord2fv(const GLfloat * v)
1266 GET_CURRENT_CONTEXT(ctx);
1267 dlist_fallback(ctx);
1268 CALL_EvalCoord2fv(ctx->Save, (v));
1271 static void GLAPIENTRY
1272 _save_EvalPoint1(GLint i)
1274 GET_CURRENT_CONTEXT(ctx);
1275 dlist_fallback(ctx);
1276 CALL_EvalPoint1(ctx->Save, (i));
1279 static void GLAPIENTRY
1280 _save_EvalPoint2(GLint i, GLint j)
1282 GET_CURRENT_CONTEXT(ctx);
1283 dlist_fallback(ctx);
1284 CALL_EvalPoint2(ctx->Save, (i, j));
1287 static void GLAPIENTRY
1288 _save_CallList(GLuint l)
1290 GET_CURRENT_CONTEXT(ctx);
1291 dlist_fallback(ctx);
1292 CALL_CallList(ctx->Save, (l));
1295 static void GLAPIENTRY
1296 _save_CallLists(GLsizei n, GLenum type, const GLvoid * v)
1298 GET_CURRENT_CONTEXT(ctx);
1299 dlist_fallback(ctx);
1300 CALL_CallLists(ctx->Save, (n, type, v));
1306 * Called when a glBegin is getting compiled into a display list.
1307 * Updating of ctx->Driver.CurrentSavePrimitive is already taken care of.
1310 vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode,
1311 bool no_current_update)
1313 struct vbo_save_context *save = &vbo_context(ctx)->save;
1314 const GLuint i = save->prim_count++;
1316 ctx->Driver.CurrentSavePrimitive = mode;
1318 assert(i < save->prim_max);
1319 save->prims[i].mode = mode & VBO_SAVE_PRIM_MODE_MASK;
1320 save->prims[i].begin = 1;
1321 save->prims[i].end = 0;
1322 save->prims[i].start = save->vert_count;
1323 save->prims[i].count = 0;
1325 save->no_current_update = no_current_update;
1327 if (save->out_of_memory) {
1328 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1331 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
1334 /* We need to call vbo_save_SaveFlushVertices() if there's state change */
1335 ctx->Driver.SaveNeedFlush = GL_TRUE;
1339 static void GLAPIENTRY
1342 GET_CURRENT_CONTEXT(ctx);
1343 struct vbo_save_context *save = &vbo_context(ctx)->save;
1344 const GLint i = save->prim_count - 1;
1346 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1347 save->prims[i].end = 1;
1348 save->prims[i].count = (save->vert_count - save->prims[i].start);
1350 if (i == (GLint) save->prim_max - 1) {
1351 compile_vertex_list(ctx);
1352 assert(save->copied.nr == 0);
1355 /* Swap out this vertex format while outside begin/end. Any color,
1356 * etc. received between here and the next begin will be compiled
1359 if (save->out_of_memory) {
1360 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1363 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1368 static void GLAPIENTRY
1369 _save_Begin(GLenum mode)
1371 GET_CURRENT_CONTEXT(ctx);
1373 _mesa_compile_error(ctx, GL_INVALID_OPERATION, "Recursive glBegin");
1377 static void GLAPIENTRY
1378 _save_PrimitiveRestartNV(void)
1380 GET_CURRENT_CONTEXT(ctx);
1381 struct vbo_save_context *save = &vbo_context(ctx)->save;
1383 if (save->prim_count == 0) {
1384 /* We're not inside a glBegin/End pair, so calling glPrimitiverRestartNV
1387 _mesa_compile_error(ctx, GL_INVALID_OPERATION,
1388 "glPrimitiveRestartNV called outside glBegin/End");
1390 /* get current primitive mode */
1391 GLenum curPrim = save->prims[save->prim_count - 1].mode;
1392 bool no_current_update = save->no_current_update;
1394 /* restart primitive */
1395 CALL_End(ctx->CurrentServerDispatch, ());
1396 vbo_save_NotifyBegin(ctx, curPrim, no_current_update);
1401 /* Unlike the functions above, these are to be hooked into the vtxfmt
1402 * maintained in ctx->ListState, active when the list is known or
1403 * suspected to be outside any begin/end primitive.
1404 * Note: OBE = Outside Begin/End
1406 static void GLAPIENTRY
1407 _save_OBE_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
1409 GET_CURRENT_CONTEXT(ctx);
1410 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1412 vbo_save_NotifyBegin(ctx, GL_QUADS, false);
1413 CALL_Vertex2f(dispatch, (x1, y1));
1414 CALL_Vertex2f(dispatch, (x2, y1));
1415 CALL_Vertex2f(dispatch, (x2, y2));
1416 CALL_Vertex2f(dispatch, (x1, y2));
1417 CALL_End(dispatch, ());
1421 static void GLAPIENTRY
1422 _save_OBE_Rectd(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2)
1424 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1427 static void GLAPIENTRY
1428 _save_OBE_Rectdv(const GLdouble *v1, const GLdouble *v2)
1430 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1433 static void GLAPIENTRY
1434 _save_OBE_Rectfv(const GLfloat *v1, const GLfloat *v2)
1436 _save_OBE_Rectf(v1[0], v1[1], v2[0], v2[1]);
1439 static void GLAPIENTRY
1440 _save_OBE_Recti(GLint x1, GLint y1, GLint x2, GLint y2)
1442 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1445 static void GLAPIENTRY
1446 _save_OBE_Rectiv(const GLint *v1, const GLint *v2)
1448 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1451 static void GLAPIENTRY
1452 _save_OBE_Rects(GLshort x1, GLshort y1, GLshort x2, GLshort y2)
1454 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1457 static void GLAPIENTRY
1458 _save_OBE_Rectsv(const GLshort *v1, const GLshort *v2)
1460 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1464 _ensure_draws_fits_in_storage(struct gl_context *ctx, int primcount, int vertcount)
1466 struct vbo_save_context *save = &vbo_context(ctx)->save;
1468 bool realloc_prim = save->prim_count + primcount > save->prim_max;
1469 bool realloc_vert = save->vertex_size && (save->vert_count + vertcount >= save->max_vert);
1471 if (realloc_prim || realloc_vert) {
1472 if (save->vert_count || save->prim_count)
1473 compile_vertex_list(ctx);
1474 realloc_storage(ctx, realloc_prim ? primcount : -1, realloc_vert ? vertcount : -1);
1475 reset_counters(ctx);
1476 assert(save->prim_max);
1481 static void GLAPIENTRY
1482 _save_OBE_DrawArrays(GLenum mode, GLint start, GLsizei count)
1484 GET_CURRENT_CONTEXT(ctx);
1485 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1486 struct vbo_save_context *save = &vbo_context(ctx)->save;
1489 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1490 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)");
1494 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawArrays(count<0)");
1498 if (save->out_of_memory)
1501 _ensure_draws_fits_in_storage(ctx, 1, count);
1503 /* Make sure to process any VBO binding changes */
1504 _mesa_update_state(ctx);
1506 _mesa_vao_map_arrays(ctx, vao, GL_MAP_READ_BIT);
1508 vbo_save_NotifyBegin(ctx, mode, true);
1510 for (i = 0; i < count; i++)
1511 _mesa_array_element(ctx, start + i);
1512 CALL_End(ctx->CurrentServerDispatch, ());
1514 _mesa_vao_unmap_arrays(ctx, vao);
1518 static void GLAPIENTRY
1519 _save_OBE_MultiDrawArrays(GLenum mode, const GLint *first,
1520 const GLsizei *count, GLsizei primcount)
1522 GET_CURRENT_CONTEXT(ctx);
1525 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1526 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMultiDrawArrays(mode)");
1530 if (primcount < 0) {
1531 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1532 "glMultiDrawArrays(primcount<0)");
1536 unsigned vertcount = 0;
1537 for (i = 0; i < primcount; i++) {
1539 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1540 "glMultiDrawArrays(count[i]<0)");
1543 vertcount += count[i];
1546 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1548 for (i = 0; i < primcount; i++) {
1550 _save_OBE_DrawArrays(mode, first[i], count[i]);
1557 array_element(struct gl_context *ctx,
1558 GLint basevertex, GLuint elt, unsigned index_size_shift)
1560 /* Section 10.3.5 Primitive Restart:
1562 * When one of the *BaseVertex drawing commands specified in section 10.5
1563 * is used, the primitive restart comparison occurs before the basevertex
1564 * offset is added to the array index.
1566 /* If PrimitiveRestart is enabled and the index is the RestartIndex
1567 * then we call PrimitiveRestartNV and return.
1569 if (ctx->Array._PrimitiveRestart[index_size_shift] &&
1570 elt == ctx->Array._RestartIndex[index_size_shift]) {
1571 CALL_PrimitiveRestartNV(ctx->CurrentServerDispatch, ());
1575 _mesa_array_element(ctx, basevertex + elt);
1579 /* Could do better by copying the arrays and element list intact and
1580 * then emitting an indexed prim at runtime.
1582 static void GLAPIENTRY
1583 _save_OBE_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
1584 const GLvoid * indices, GLint basevertex)
1586 GET_CURRENT_CONTEXT(ctx);
1587 struct vbo_save_context *save = &vbo_context(ctx)->save;
1588 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1589 struct gl_buffer_object *indexbuf = vao->IndexBufferObj;
1592 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1593 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawElements(mode)");
1597 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1600 if (type != GL_UNSIGNED_BYTE &&
1601 type != GL_UNSIGNED_SHORT &&
1602 type != GL_UNSIGNED_INT) {
1603 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1607 if (save->out_of_memory)
1610 _ensure_draws_fits_in_storage(ctx, 1, count);
1612 /* Make sure to process any VBO binding changes */
1613 _mesa_update_state(ctx);
1615 _mesa_vao_map(ctx, vao, GL_MAP_READ_BIT);
1619 ADD_POINTERS(indexbuf->Mappings[MAP_INTERNAL].Pointer, indices);
1621 vbo_save_NotifyBegin(ctx, mode, true);
1624 case GL_UNSIGNED_BYTE:
1625 for (i = 0; i < count; i++)
1626 array_element(ctx, basevertex, ((GLubyte *) indices)[i], 0);
1628 case GL_UNSIGNED_SHORT:
1629 for (i = 0; i < count; i++)
1630 array_element(ctx, basevertex, ((GLushort *) indices)[i], 1);
1632 case GL_UNSIGNED_INT:
1633 for (i = 0; i < count; i++)
1634 array_element(ctx, basevertex, ((GLuint *) indices)[i], 2);
1637 _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)");
1641 CALL_End(ctx->CurrentServerDispatch, ());
1643 _mesa_vao_unmap(ctx, vao);
1646 static void GLAPIENTRY
1647 _save_OBE_DrawElements(GLenum mode, GLsizei count, GLenum type,
1648 const GLvoid * indices)
1650 _save_OBE_DrawElementsBaseVertex(mode, count, type, indices, 0);
1654 static void GLAPIENTRY
1655 _save_OBE_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
1656 GLsizei count, GLenum type,
1657 const GLvoid * indices)
1659 GET_CURRENT_CONTEXT(ctx);
1660 struct vbo_save_context *save = &vbo_context(ctx)->save;
1662 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1663 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)");
1667 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1668 "glDrawRangeElements(count<0)");
1671 if (type != GL_UNSIGNED_BYTE &&
1672 type != GL_UNSIGNED_SHORT &&
1673 type != GL_UNSIGNED_INT) {
1674 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(type)");
1678 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1679 "glDrawRangeElements(end < start)");
1683 if (save->out_of_memory)
1686 _save_OBE_DrawElements(mode, count, type, indices);
1690 static void GLAPIENTRY
1691 _save_OBE_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type,
1692 const GLvoid * const *indices, GLsizei primcount)
1694 GET_CURRENT_CONTEXT(ctx);
1695 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1699 for (i = 0; i < primcount; i++) {
1700 vertcount += count[i];
1702 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1704 for (i = 0; i < primcount; i++) {
1706 CALL_DrawElements(dispatch, (mode, count[i], type, indices[i]));
1712 static void GLAPIENTRY
1713 _save_OBE_MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count,
1715 const GLvoid * const *indices,
1717 const GLint *basevertex)
1719 GET_CURRENT_CONTEXT(ctx);
1720 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1724 for (i = 0; i < primcount; i++) {
1725 vertcount += count[i];
1727 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1729 for (i = 0; i < primcount; i++) {
1731 CALL_DrawElementsBaseVertex(dispatch, (mode, count[i], type,
1740 vtxfmt_init(struct gl_context *ctx)
1742 struct vbo_save_context *save = &vbo_context(ctx)->save;
1743 GLvertexformat *vfmt = &save->vtxfmt;
1745 #define NAME_AE(x) _ae_##x
1746 #define NAME_CALLLIST(x) _save_##x
1747 #define NAME(x) _save_##x
1748 #define NAME_ES(x) _save_##x##ARB
1750 #include "vbo_init_tmp.h"
1755 * Initialize the dispatch table with the VBO functions for display
1759 vbo_initialize_save_dispatch(const struct gl_context *ctx,
1760 struct _glapi_table *exec)
1762 SET_DrawArrays(exec, _save_OBE_DrawArrays);
1763 SET_MultiDrawArrays(exec, _save_OBE_MultiDrawArrays);
1764 SET_DrawElements(exec, _save_OBE_DrawElements);
1765 SET_DrawElementsBaseVertex(exec, _save_OBE_DrawElementsBaseVertex);
1766 SET_DrawRangeElements(exec, _save_OBE_DrawRangeElements);
1767 SET_MultiDrawElementsEXT(exec, _save_OBE_MultiDrawElements);
1768 SET_MultiDrawElementsBaseVertex(exec, _save_OBE_MultiDrawElementsBaseVertex);
1769 SET_Rectf(exec, _save_OBE_Rectf);
1770 SET_Rectd(exec, _save_OBE_Rectd);
1771 SET_Rectdv(exec, _save_OBE_Rectdv);
1772 SET_Rectfv(exec, _save_OBE_Rectfv);
1773 SET_Recti(exec, _save_OBE_Recti);
1774 SET_Rectiv(exec, _save_OBE_Rectiv);
1775 SET_Rects(exec, _save_OBE_Rects);
1776 SET_Rectsv(exec, _save_OBE_Rectsv);
1778 /* Note: other glDraw functins aren't compiled into display lists */
1784 vbo_save_SaveFlushVertices(struct gl_context *ctx)
1786 struct vbo_save_context *save = &vbo_context(ctx)->save;
1788 /* Noop when we are actually active:
1790 if (ctx->Driver.CurrentSavePrimitive <= PRIM_MAX)
1793 if (save->vert_count || save->prim_count)
1794 compile_vertex_list(ctx);
1796 copy_to_current(ctx);
1798 reset_counters(ctx);
1799 ctx->Driver.SaveNeedFlush = GL_FALSE;
1804 * Called from glNewList when we're starting to compile a display list.
1807 vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode)
1809 struct vbo_save_context *save = &vbo_context(ctx)->save;
1814 if (!save->prim_store)
1815 save->prim_store = alloc_prim_store(0);
1817 if (!save->vertex_store)
1818 save->vertex_store = alloc_vertex_store(ctx, 0);
1820 save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
1823 reset_counters(ctx);
1824 ctx->Driver.SaveNeedFlush = GL_FALSE;
1829 * Called from glEndList when we're finished compiling a display list.
1832 vbo_save_EndList(struct gl_context *ctx)
1834 struct vbo_save_context *save = &vbo_context(ctx)->save;
1836 /* EndList called inside a (saved) Begin/End pair?
1838 if (_mesa_inside_dlist_begin_end(ctx)) {
1839 if (save->prim_count > 0) {
1840 GLint i = save->prim_count - 1;
1841 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1842 save->prims[i].end = 0;
1843 save->prims[i].count = save->vert_count - save->prims[i].start;
1846 /* Make sure this vertex list gets replayed by the "loopback"
1849 save->dangling_attr_ref = GL_TRUE;
1850 vbo_save_SaveFlushVertices(ctx);
1852 /* Swap out this vertex format while outside begin/end. Any color,
1853 * etc. received between here and the next begin will be compiled
1856 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1859 vbo_save_unmap_vertex_store(ctx, save->vertex_store);
1861 assert(save->vertex_size == 0);
1866 * Called from the display list code when we're about to execute a
1870 vbo_save_BeginCallList(struct gl_context *ctx, struct gl_display_list *dlist)
1872 struct vbo_save_context *save = &vbo_context(ctx)->save;
1873 save->replay_flags |= dlist->Flags;
1878 * Called from the display list code when we're finished executing a
1882 vbo_save_EndCallList(struct gl_context *ctx)
1884 struct vbo_save_context *save = &vbo_context(ctx)->save;
1886 if (ctx->ListState.CallDepth == 1)
1887 save->replay_flags = 0;
1892 * Called by display list code when a display list is being deleted.
1895 vbo_destroy_vertex_list(struct gl_context *ctx, void *data)
1897 struct vbo_save_vertex_list *node = (struct vbo_save_vertex_list *) data;
1899 for (gl_vertex_processing_mode vpm = VP_MODE_FF; vpm < VP_MODE_MAX; ++vpm)
1900 _mesa_reference_vao(ctx, &node->VAO[vpm], NULL);
1902 if (--node->prim_store->refcount == 0) {
1903 free(node->prim_store->prims);
1904 free(node->prim_store);
1907 _mesa_reference_buffer_object(ctx, &node->ib.obj, NULL);
1908 free(node->current_data);
1909 node->current_data = NULL;
1914 vbo_print_vertex_list(struct gl_context *ctx, void *data, FILE *f)
1916 struct vbo_save_vertex_list *node = (struct vbo_save_vertex_list *) data;
1918 struct gl_buffer_object *buffer = node->VAO[0]->BufferBinding[0].BufferObj;
1919 const GLuint vertex_size = _vbo_save_get_stride(node)/sizeof(GLfloat);
1922 fprintf(f, "VBO-VERTEX-LIST, %u vertices, %d primitives, %d vertsize, "
1924 node->vertex_count, node->prim_count, vertex_size,
1927 for (i = 0; i < node->prim_count; i++) {
1928 struct _mesa_prim *prim = &node->prims[i];
1929 fprintf(f, " prim %d: %s %d..%d %s %s\n",
1931 _mesa_lookup_prim_by_nr(prim->mode),
1933 prim->start + prim->count,
1934 (prim->begin) ? "BEGIN" : "(wrap)",
1935 (prim->end) ? "END" : "(wrap)");
1941 * Called during context creation/init.
1944 current_init(struct gl_context *ctx)
1946 struct vbo_save_context *save = &vbo_context(ctx)->save;
1949 for (i = VBO_ATTRIB_POS; i <= VBO_ATTRIB_GENERIC15; i++) {
1950 const GLuint j = i - VBO_ATTRIB_POS;
1951 assert(j < VERT_ATTRIB_MAX);
1952 save->currentsz[i] = &ctx->ListState.ActiveAttribSize[j];
1953 save->current[i] = (fi_type *) ctx->ListState.CurrentAttrib[j];
1956 for (i = VBO_ATTRIB_FIRST_MATERIAL; i <= VBO_ATTRIB_LAST_MATERIAL; i++) {
1957 const GLuint j = i - VBO_ATTRIB_FIRST_MATERIAL;
1958 assert(j < MAT_ATTRIB_MAX);
1959 save->currentsz[i] = &ctx->ListState.ActiveMaterialSize[j];
1960 save->current[i] = (fi_type *) ctx->ListState.CurrentMaterial[j];
1966 * Initialize the display list compiler. Called during context creation.
1969 vbo_save_api_init(struct vbo_save_context *save)
1971 struct gl_context *ctx = gl_context_from_vbo_save(save);
1973 save->opcode_vertex_list =
1974 _mesa_dlist_alloc_opcode(ctx,
1975 sizeof(struct vbo_save_vertex_list),
1976 vbo_save_playback_vertex_list,
1977 vbo_destroy_vertex_list,
1978 vbo_print_vertex_list);
1982 _mesa_noop_vtxfmt_init(ctx, &save->vtxfmt_noop);