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"
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->start, &prim->count,
132 prim->begin, sz, true, dst, src);
136 static struct vbo_save_vertex_store *
137 alloc_vertex_store(struct gl_context *ctx, int vertex_count)
139 struct vbo_save_context *save = &vbo_context(ctx)->save;
140 struct vbo_save_vertex_store *vertex_store =
141 CALLOC_STRUCT(vbo_save_vertex_store);
143 int size = MAX2(vertex_count * save->vertex_size, VBO_SAVE_BUFFER_SIZE);
145 /* obj->Name needs to be non-zero, but won't ever be examined more
146 * closely than that. In particular these buffers won't be entered
147 * into the hash and can never be confused with ones visible to the
148 * user. Perhaps there could be a special number for internal
151 vertex_store->bufferobj = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID);
152 if (vertex_store->bufferobj) {
153 save->out_of_memory =
154 !ctx->Driver.BufferData(ctx,
156 size * sizeof(GLfloat),
157 NULL, GL_STATIC_DRAW_ARB,
159 GL_DYNAMIC_STORAGE_BIT,
160 vertex_store->bufferobj);
163 save->out_of_memory = GL_TRUE;
166 if (save->out_of_memory) {
167 _mesa_error(ctx, GL_OUT_OF_MEMORY, "internal VBO allocation");
168 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
171 vertex_store->buffer_map = NULL;
172 vertex_store->used = 0;
179 free_vertex_store(struct gl_context *ctx,
180 struct vbo_save_vertex_store *vertex_store)
182 assert(!vertex_store->buffer_map);
184 if (vertex_store->bufferobj) {
185 _mesa_reference_buffer_object(ctx, &vertex_store->bufferobj, NULL);
193 vbo_save_map_vertex_store(struct gl_context *ctx,
194 struct vbo_save_vertex_store *vertex_store)
196 const GLbitfield access = (GL_MAP_WRITE_BIT |
197 GL_MAP_INVALIDATE_RANGE_BIT |
198 GL_MAP_UNSYNCHRONIZED_BIT |
199 GL_MAP_FLUSH_EXPLICIT_BIT |
202 assert(vertex_store->bufferobj);
203 assert(!vertex_store->buffer_map); /* the buffer should not be mapped */
205 if (vertex_store->bufferobj->Size > 0) {
206 /* Map the remaining free space in the VBO */
207 GLintptr offset = vertex_store->used * sizeof(GLfloat);
208 GLsizeiptr size = vertex_store->bufferobj->Size - offset;
209 fi_type *range = (fi_type *)
210 ctx->Driver.MapBufferRange(ctx, offset, size, access,
211 vertex_store->bufferobj,
214 /* compute address of start of whole buffer (needed elsewhere) */
215 vertex_store->buffer_map = range - vertex_store->used;
216 assert(vertex_store->buffer_map);
220 vertex_store->buffer_map = NULL;
225 /* probably ran out of memory for buffers */
232 vbo_save_unmap_vertex_store(struct gl_context *ctx,
233 struct vbo_save_vertex_store *vertex_store)
235 if (vertex_store->bufferobj->Size > 0) {
237 GLsizeiptr length = vertex_store->used * sizeof(GLfloat)
238 - vertex_store->bufferobj->Mappings[MAP_INTERNAL].Offset;
240 /* Explicitly flush the region we wrote to */
241 ctx->Driver.FlushMappedBufferRange(ctx, offset, length,
242 vertex_store->bufferobj,
245 ctx->Driver.UnmapBuffer(ctx, vertex_store->bufferobj, MAP_INTERNAL);
247 vertex_store->buffer_map = NULL;
251 static struct vbo_save_primitive_store *
252 alloc_prim_store(int prim_count)
254 struct vbo_save_primitive_store *store =
255 CALLOC_STRUCT(vbo_save_primitive_store);
256 store->size = MAX2(prim_count, VBO_SAVE_PRIM_SIZE);
257 store->prims = calloc(store->size, sizeof(struct _mesa_prim));
265 reset_counters(struct gl_context *ctx)
267 struct vbo_save_context *save = &vbo_context(ctx)->save;
269 save->prims = save->prim_store->prims + save->prim_store->used;
270 save->buffer_map = save->vertex_store->buffer_map + save->vertex_store->used;
272 assert(save->buffer_map == save->buffer_ptr);
274 if (save->vertex_size)
275 save->max_vert = (save->vertex_store->bufferobj->Size / sizeof(float) - save->vertex_store->used) /
280 save->vert_count = 0;
281 save->prim_count = 0;
282 save->prim_max = save->prim_store->size - save->prim_store->used;
283 save->dangling_attr_ref = GL_FALSE;
287 * For a list of prims, try merging prims that can just be extensions of the
291 merge_prims(struct gl_context *ctx, struct _mesa_prim *prim_list,
295 struct _mesa_prim *prev_prim = prim_list;
297 for (i = 1; i < *prim_count; i++) {
298 struct _mesa_prim *this_prim = prim_list + i;
300 vbo_try_prim_conversion(&this_prim->mode, &this_prim->count);
302 if (vbo_merge_draws(ctx, true,
303 prev_prim->mode, this_prim->mode,
304 prev_prim->start, this_prim->start,
305 &prev_prim->count, this_prim->count,
306 prev_prim->basevertex, this_prim->basevertex,
308 this_prim->begin, this_prim->end)) {
309 /* We've found a prim that just extend the previous one. Tack it
310 * onto the previous one, and let this primitive struct get dropped.
315 /* If any previous primitives have been dropped, then we need to copy
316 * this later one into the next available slot.
319 if (prev_prim != this_prim)
320 *prev_prim = *this_prim;
323 *prim_count = prev_prim - prim_list + 1;
328 * Convert GL_LINE_LOOP primitive into GL_LINE_STRIP so that drivers
329 * don't have to worry about handling the _mesa_prim::begin/end flags.
330 * See https://bugs.freedesktop.org/show_bug.cgi?id=81174
333 convert_line_loop_to_strip(struct vbo_save_context *save,
334 struct vbo_save_vertex_list *node)
336 struct _mesa_prim *prim = &node->prims[node->prim_count - 1];
338 assert(prim->mode == GL_LINE_LOOP);
341 /* Copy the 0th vertex to end of the buffer and extend the
342 * vertex count by one to finish the line loop.
344 const GLuint sz = save->vertex_size;
346 const fi_type *src = save->buffer_map + prim->start * sz;
348 fi_type *dst = save->buffer_map + (prim->start + prim->count) * sz;
350 memcpy(dst, src, sz * sizeof(float));
353 node->vertex_count++;
355 save->buffer_ptr += sz;
356 save->vertex_store->used += sz;
360 /* Drawing the second or later section of a long line loop.
361 * Skip the 0th vertex.
367 prim->mode = GL_LINE_STRIP;
371 /* Compare the present vao if it has the same setup. */
373 compare_vao(gl_vertex_processing_mode mode,
374 const struct gl_vertex_array_object *vao,
375 const struct gl_buffer_object *bo, GLintptr buffer_offset,
376 GLuint stride, GLbitfield64 vao_enabled,
377 const GLubyte size[VBO_ATTRIB_MAX],
378 const GLenum16 type[VBO_ATTRIB_MAX],
379 const GLuint offset[VBO_ATTRIB_MAX])
384 /* If the enabled arrays are not the same we are not equal. */
385 if (vao_enabled != vao->Enabled)
388 /* Check the buffer binding at 0 */
389 if (vao->BufferBinding[0].BufferObj != bo)
391 /* BufferBinding[0].Offset != buffer_offset is checked per attribute */
392 if (vao->BufferBinding[0].Stride != stride)
394 assert(vao->BufferBinding[0].InstanceDivisor == 0);
396 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space */
397 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
399 /* Now check the enabled arrays */
400 GLbitfield mask = vao_enabled;
402 const int attr = u_bit_scan(&mask);
403 const unsigned char vbo_attr = vao_to_vbo_map[attr];
404 const GLenum16 tp = type[vbo_attr];
405 const GLintptr off = offset[vbo_attr] + buffer_offset;
406 const struct gl_array_attributes *attrib = &vao->VertexAttrib[attr];
407 if (attrib->RelativeOffset + vao->BufferBinding[0].Offset != off)
409 if (attrib->Format.Type != tp)
411 if (attrib->Format.Size != size[vbo_attr])
413 assert(attrib->Format.Format == GL_RGBA);
414 assert(attrib->Format.Normalized == GL_FALSE);
415 assert(attrib->Format.Integer == vbo_attrtype_to_integer_flag(tp));
416 assert(attrib->Format.Doubles == vbo_attrtype_to_double_flag(tp));
417 assert(attrib->BufferBindingIndex == 0);
424 /* Create or reuse the vao for the vertex processing mode. */
426 update_vao(struct gl_context *ctx,
427 gl_vertex_processing_mode mode,
428 struct gl_vertex_array_object **vao,
429 struct gl_buffer_object *bo, GLintptr buffer_offset,
430 GLuint stride, GLbitfield64 vbo_enabled,
431 const GLubyte size[VBO_ATTRIB_MAX],
432 const GLenum16 type[VBO_ATTRIB_MAX],
433 const GLuint offset[VBO_ATTRIB_MAX])
435 /* Compute the bitmasks of vao_enabled arrays */
436 GLbitfield vao_enabled = _vbo_get_vao_enabled_from_vbo(mode, vbo_enabled);
439 * Check if we can possibly reuse the exisiting one.
440 * In the long term we should reset them when something changes.
442 if (compare_vao(mode, *vao, bo, buffer_offset, stride,
443 vao_enabled, size, type, offset))
446 /* The initial refcount is 1 */
447 _mesa_reference_vao(ctx, vao, NULL);
448 *vao = _mesa_new_vao(ctx, ~((GLuint)0));
451 * assert(stride <= ctx->Const.MaxVertexAttribStride);
452 * MaxVertexAttribStride is not set for drivers that does not
453 * expose GL 44 or GLES 31.
456 /* Bind the buffer object at binding point 0 */
457 _mesa_bind_vertex_buffer(ctx, *vao, 0, bo, buffer_offset, stride, false,
460 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space
461 * Note that the position/generic0 aliasing is done in the VAO.
463 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
464 /* Now set the enable arrays */
465 GLbitfield mask = vao_enabled;
467 const int vao_attr = u_bit_scan(&mask);
468 const GLubyte vbo_attr = vao_to_vbo_map[vao_attr];
469 assert(offset[vbo_attr] <= ctx->Const.MaxVertexAttribRelativeOffset);
471 _vbo_set_attrib_format(ctx, *vao, vao_attr, buffer_offset,
472 size[vbo_attr], type[vbo_attr], offset[vbo_attr]);
473 _mesa_vertex_attrib_binding(ctx, *vao, vao_attr, 0);
475 _mesa_enable_vertex_array_attribs(ctx, *vao, vao_enabled);
476 assert(vao_enabled == (*vao)->Enabled);
477 assert((vao_enabled & ~(*vao)->VertexAttribBufferMask) == 0);
479 /* Finalize and freeze the VAO */
480 _mesa_set_vao_immutable(ctx, *vao);
485 realloc_storage(struct gl_context *ctx, int prim_count, int vertex_count)
487 struct vbo_save_context *save = &vbo_context(ctx)->save;
488 if (vertex_count >= 0) {
491 vbo_save_unmap_vertex_store(ctx, save->vertex_store);
493 /* Release old reference:
495 free_vertex_store(ctx, save->vertex_store);
496 save->vertex_store = NULL;
497 /* When we have a new vbo, we will for sure need a new vao */
498 for (gl_vertex_processing_mode vpm = 0; vpm < VP_MODE_MAX; ++vpm)
499 _mesa_reference_vao(ctx, &save->VAO[vpm], NULL);
501 /* Allocate and map new store:
503 save->vertex_store = alloc_vertex_store(ctx, vertex_count);
504 save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
505 save->out_of_memory = save->buffer_ptr == NULL;
508 if (prim_count >= 0) {
509 if (--save->prim_store->refcount == 0) {
510 free(save->prim_store->prims);
511 free(save->prim_store);
513 save->prim_store = alloc_prim_store(prim_count);
519 * Insert the active immediate struct onto the display list currently
523 compile_vertex_list(struct gl_context *ctx)
525 struct vbo_save_context *save = &vbo_context(ctx)->save;
526 struct vbo_save_vertex_list *node;
528 /* Allocate space for this structure in the display list currently
531 node = (struct vbo_save_vertex_list *)
532 _mesa_dlist_alloc_aligned(ctx, save->opcode_vertex_list, sizeof(*node));
537 /* Make sure the pointer is aligned to the size of a pointer */
538 assert((GLintptr) node % sizeof(void *) == 0);
540 /* Duplicate our template, increment refcounts to the storage structs:
542 GLintptr old_offset = 0;
544 old_offset = save->VAO[0]->BufferBinding[0].Offset
545 + save->VAO[0]->VertexAttrib[VERT_ATTRIB_POS].RelativeOffset;
547 const GLsizei stride = save->vertex_size*sizeof(GLfloat);
548 GLintptr buffer_offset =
549 (save->buffer_map - save->vertex_store->buffer_map) * sizeof(GLfloat);
550 assert(old_offset <= buffer_offset);
551 const GLintptr offset_diff = buffer_offset - old_offset;
552 GLuint start_offset = 0;
553 if (offset_diff > 0 && stride > 0 && offset_diff % stride == 0) {
554 /* The vertex size is an exact multiple of the buffer offset.
555 * This means that we can use zero-based vertex attribute pointers
556 * and specify the start of the primitive with the _mesa_prim::start
557 * field. This results in issuing several draw calls with identical
558 * vertex attribute information. This can result in fewer state
559 * changes in drivers. In particular, the Gallium CSO module will
560 * filter out redundant vertex buffer changes.
562 /* We cannot immediately update the primitives as some methods below
563 * still need the uncorrected start vertices
565 start_offset = offset_diff/stride;
566 assert(old_offset == buffer_offset - offset_diff);
567 buffer_offset = old_offset;
569 GLuint offsets[VBO_ATTRIB_MAX];
570 for (unsigned i = 0, offset = 0; i < VBO_ATTRIB_MAX; ++i) {
572 offset += save->attrsz[i] * sizeof(GLfloat);
574 node->vertex_count = save->vert_count;
575 node->wrap_count = save->copied.nr;
576 node->prims = save->prims;
577 node->merged.prims = NULL;
578 node->merged.ib.obj = NULL;
579 node->merged.prim_count = 0;
580 node->prim_count = save->prim_count;
581 node->prim_store = save->prim_store;
583 /* Create a pair of VAOs for the possible VERTEX_PROCESSING_MODEs
584 * Note that this may reuse the previous one of possible.
586 for (gl_vertex_processing_mode vpm = VP_MODE_FF; vpm < VP_MODE_MAX; ++vpm) {
587 /* create or reuse the vao */
588 update_vao(ctx, vpm, &save->VAO[vpm],
589 save->vertex_store->bufferobj, buffer_offset, stride,
590 save->enabled, save->attrsz, save->attrtype, offsets);
591 /* Reference the vao in the dlist */
592 node->VAO[vpm] = NULL;
593 _mesa_reference_vao(ctx, &node->VAO[vpm], save->VAO[vpm]);
596 node->prim_store->refcount++;
598 if (save->no_current_update) {
599 node->current_data = NULL;
602 GLuint current_size = save->vertex_size - save->attrsz[0];
603 node->current_data = NULL;
606 node->current_data = malloc(current_size * sizeof(GLfloat));
607 if (node->current_data) {
608 const char *buffer = (const char *)save->buffer_map;
609 unsigned attr_offset = save->attrsz[0] * sizeof(GLfloat);
610 unsigned vertex_offset = 0;
612 if (node->vertex_count)
613 vertex_offset = (node->vertex_count - 1) * stride;
615 memcpy(node->current_data, buffer + vertex_offset + attr_offset,
616 current_size * sizeof(GLfloat));
618 _mesa_error(ctx, GL_OUT_OF_MEMORY, "Current value allocation");
623 assert(save->attrsz[VBO_ATTRIB_POS] != 0 || node->vertex_count == 0);
625 if (save->dangling_attr_ref)
626 ctx->ListState.CurrentList->Flags |= DLIST_DANGLING_REFS;
628 save->vertex_store->used += save->vertex_size * node->vertex_count;
629 save->prim_store->used += node->prim_count;
631 /* Copy duplicated vertices
633 save->copied.nr = copy_vertices(ctx, node, save->buffer_map);
635 if (node->prims[node->prim_count - 1].mode == GL_LINE_LOOP) {
636 convert_line_loop_to_strip(save, node);
639 merge_prims(ctx, node->prims, &node->prim_count);
641 /* Correct the primitive starts, we can only do this here as copy_vertices
642 * and convert_line_loop_to_strip above consume the uncorrected starts.
643 * On the other hand the _vbo_loopback_vertex_list call below needs the
644 * primitves to be corrected already.
646 for (unsigned i = 0; i < node->prim_count; i++) {
647 node->prims[i].start += start_offset;
650 /* Create an index buffer. */
651 node->min_index = node->max_index = 0;
652 if (save->vert_count && node->prim_count) {
653 /* We won't modify node->prims, so use a const alias to avoid unintended
655 const struct _mesa_prim *original_prims = node->prims;
657 int end = original_prims[node->prim_count - 1].start +
658 original_prims[node->prim_count - 1].count;
659 int total_vert_count = end - original_prims[0].start;
661 node->min_index = node->prims[0].start;
662 node->max_index = end - 1;
664 /* Estimate for the worst case: all prims are line strips (the +1 is because
665 * wrap_buffers may call use but the last primitive may not be complete) */
666 int max_indices_count = MAX2(total_vert_count * 2 - (node->prim_count * 2) + 1,
669 int indices_offset = 0;
670 int available = save->previous_ib ? (save->previous_ib->Size / 4 - save->ib_first_free_index) : 0;
671 if (available >= max_indices_count) {
672 indices_offset = save->ib_first_free_index;
674 int size = max_indices_count * sizeof(uint32_t);
675 uint32_t* indices = (uint32_t*) malloc(size);
676 uint32_t max_index = 0, min_index = 0xFFFFFFFF;
680 int last_valid_prim = -1;
681 /* Construct indices array. */
682 for (unsigned i = 0; i < node->prim_count; i++) {
683 assert(original_prims[i].basevertex == 0);
684 GLubyte mode = original_prims[i].mode;
686 int vertex_count = original_prims[i].count;
691 /* Line strips may get converted to lines */
692 if (mode == GL_LINE_STRIP)
695 /* If 2 consecutive prims use the same mode => merge them. */
696 bool merge_prims = last_valid_prim >= 0 &&
697 mode == node->merged.prims[last_valid_prim].mode &&
698 mode != GL_LINE_LOOP && mode != GL_TRIANGLE_FAN &&
699 mode != GL_QUAD_STRIP && mode != GL_POLYGON &&
702 /* To be able to merge consecutive triangle strips we need to insert
703 * a degenerate triangle.
706 mode == GL_TRIANGLE_STRIP) {
707 /* Insert a degenerate triangle */
708 assert(node->merged.prims[last_valid_prim].mode == GL_TRIANGLE_STRIP);
709 unsigned tri_count = node->merged.prims[last_valid_prim].count - 2;
711 indices[idx] = indices[idx - 1];
712 indices[idx + 1] = original_prims[i].start;
714 node->merged.prims[last_valid_prim].count += 2;
717 /* Add another index to preserve winding order */
718 indices[idx++] = original_prims[i].start;
719 node->merged.prims[last_valid_prim].count++;
725 /* Convert line strips to lines if it'll allow if the previous
726 * prim mode is GL_LINES (so merge_prims is true) or if the next
727 * primitive mode is GL_LINES or GL_LINE_LOOP.
729 if (original_prims[i].mode == GL_LINE_STRIP &&
731 (i < node->prim_count - 1 &&
732 (original_prims[i + 1].mode == GL_LINE_STRIP ||
733 original_prims[i + 1].mode == GL_LINES)))) {
734 for (unsigned j = 0; j < vertex_count; j++) {
735 indices[idx++] = original_prims[i].start + j;
736 /* Repeat all but the first/last indices. */
737 if (j && j != vertex_count - 1) {
738 indices[idx++] = original_prims[i].start + j;
742 /* We didn't convert to LINES, so restore the original mode */
743 mode = original_prims[i].mode;
745 for (unsigned j = 0; j < vertex_count; j++) {
746 indices[idx++] = original_prims[i].start + j;
750 min_index = MIN2(min_index, indices[start]);
751 max_index = MAX2(max_index, indices[idx - 1]);
754 /* Update vertex count. */
755 node->merged.prims[last_valid_prim].count += idx - start;
757 /* Keep this primitive */
758 last_valid_prim += 1;
759 assert(last_valid_prim <= i);
760 node->merged.prims = realloc(node->merged.prims, (1 + last_valid_prim) * sizeof(struct _mesa_prim));
761 node->merged.prims[last_valid_prim] = original_prims[i];
762 node->merged.prims[last_valid_prim].start = indices_offset + start;
763 node->merged.prims[last_valid_prim].count = idx - start;
765 node->merged.prims[last_valid_prim].mode = mode;
768 assert(idx > 0 && idx <= max_indices_count);
770 node->merged.prim_count = last_valid_prim + 1;
771 node->merged.ib.ptr = NULL;
772 node->merged.ib.count = idx;
773 node->merged.ib.index_size_shift = (GL_UNSIGNED_INT - GL_UNSIGNED_BYTE) >> 1;
774 node->merged.min_index = min_index;
775 node->merged.max_index = max_index;
777 if (!indices_offset) {
778 /* Allocate a new index buffer */
779 _mesa_reference_buffer_object(ctx, &save->previous_ib, NULL);
780 save->previous_ib = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID + 1);
781 bool success = ctx->Driver.BufferData(ctx,
782 GL_ELEMENT_ARRAY_BUFFER_ARB,
783 MAX2(VBO_SAVE_INDEX_SIZE, idx) * sizeof(uint32_t),
785 GL_STATIC_DRAW_ARB, GL_MAP_WRITE_BIT,
788 _mesa_reference_buffer_object(ctx, &save->previous_ib, NULL);
789 _mesa_error(ctx, GL_OUT_OF_MEMORY, "IB allocation");
793 _mesa_reference_buffer_object(ctx, &node->merged.ib.obj, save->previous_ib);
795 if (node->merged.ib.obj) {
796 ctx->Driver.BufferSubData(ctx,
797 indices_offset * sizeof(uint32_t),
798 idx * sizeof(uint32_t),
800 node->merged.ib.obj);
801 save->ib_first_free_index = indices_offset + idx;
803 node->vertex_count = 0;
804 node->prim_count = 0;
810 /* Deal with GL_COMPILE_AND_EXECUTE:
812 if (ctx->ExecuteFlag) {
813 struct _glapi_table *dispatch = GET_DISPATCH();
815 _glapi_set_dispatch(ctx->Exec);
817 /* Note that the range of referenced vertices must be mapped already */
818 _vbo_loopback_vertex_list(ctx, node);
820 _glapi_set_dispatch(dispatch);
823 /* Decide whether the storage structs are full, or can be used for
824 * the next vertex lists as well.
826 if (save->vertex_store->used >
827 save->vertex_store->bufferobj->Size / sizeof(float) - 16 * (save->vertex_size + 4)) {
828 realloc_storage(ctx, -1, 0);
831 /* update buffer_ptr for next vertex */
832 save->buffer_ptr = save->vertex_store->buffer_map
833 + save->vertex_store->used;
836 if (save->prim_store->used > save->prim_store->size - 6) {
837 realloc_storage(ctx, 0, -1);
840 /* Reset our structures for the next run of vertices:
847 * This is called when we fill a vertex buffer before we hit a glEnd().
849 * TODO -- If no new vertices have been stored, don't bother saving it.
852 wrap_buffers(struct gl_context *ctx)
854 struct vbo_save_context *save = &vbo_context(ctx)->save;
855 GLint i = save->prim_count - 1;
858 assert(i < (GLint) save->prim_max);
861 /* Close off in-progress primitive.
863 save->prims[i].count = (save->vert_count - save->prims[i].start);
864 mode = save->prims[i].mode;
866 /* store the copied vertices, and allocate a new list.
868 compile_vertex_list(ctx);
870 /* Restart interrupted primitive
872 save->prims[0].mode = mode;
873 save->prims[0].begin = 0;
874 save->prims[0].end = 0;
875 save->prims[0].start = 0;
876 save->prims[0].count = 0;
877 save->prim_count = 1;
882 * Called only when buffers are wrapped as the result of filling the
883 * vertex_store struct.
886 wrap_filled_vertex(struct gl_context *ctx)
888 struct vbo_save_context *save = &vbo_context(ctx)->save;
889 unsigned numComponents;
891 /* Emit a glEnd to close off the last vertex list.
895 /* Copy stored stored vertices to start of new list.
897 assert(save->max_vert - save->vert_count > save->copied.nr);
899 numComponents = save->copied.nr * save->vertex_size;
900 memcpy(save->buffer_ptr,
902 numComponents * sizeof(fi_type));
903 save->buffer_ptr += numComponents;
904 save->vert_count += save->copied.nr;
909 copy_to_current(struct gl_context *ctx)
911 struct vbo_save_context *save = &vbo_context(ctx)->save;
912 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
915 const int i = u_bit_scan64(&enabled);
916 assert(save->attrsz[i]);
918 if (save->attrtype[i] == GL_DOUBLE ||
919 save->attrtype[i] == GL_UNSIGNED_INT64_ARB)
920 memcpy(save->current[i], save->attrptr[i], save->attrsz[i] * sizeof(GLfloat));
922 COPY_CLEAN_4V_TYPE_AS_UNION(save->current[i], save->attrsz[i],
923 save->attrptr[i], save->attrtype[i]);
929 copy_from_current(struct gl_context *ctx)
931 struct vbo_save_context *save = &vbo_context(ctx)->save;
932 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
935 const int i = u_bit_scan64(&enabled);
937 switch (save->attrsz[i]) {
939 save->attrptr[i][3] = save->current[i][3];
942 save->attrptr[i][2] = save->current[i][2];
945 save->attrptr[i][1] = save->current[i][1];
948 save->attrptr[i][0] = save->current[i][0];
951 unreachable("Unexpected vertex attribute size");
958 * Called when we increase the size of a vertex attribute. For example,
959 * if we've seen one or more glTexCoord2f() calls and now we get a
960 * glTexCoord3f() call.
961 * Flush existing data, set new attrib size, replay copied vertices.
964 upgrade_vertex(struct gl_context *ctx, GLuint attr, GLuint newsz)
966 struct vbo_save_context *save = &vbo_context(ctx)->save;
971 /* Store the current run of vertices, and emit a GL_END. Emit a
972 * BEGIN in the new buffer.
974 if (save->vert_count)
977 assert(save->copied.nr == 0);
979 /* Do a COPY_TO_CURRENT to ensure back-copying works for the case
980 * when the attribute already exists in the vertex and is having
981 * its size increased.
983 copy_to_current(ctx);
987 oldsz = save->attrsz[attr];
988 save->attrsz[attr] = newsz;
989 save->enabled |= BITFIELD64_BIT(attr);
991 save->vertex_size += newsz - oldsz;
992 save->max_vert = ((save->vertex_store->bufferobj->Size / sizeof(float) -
993 save->vertex_store->used) /
995 save->vert_count = 0;
997 /* Recalculate all the attrptr[] values:
1000 for (i = 0; i < VBO_ATTRIB_MAX; i++) {
1001 if (save->attrsz[i]) {
1002 save->attrptr[i] = tmp;
1003 tmp += save->attrsz[i];
1006 save->attrptr[i] = NULL; /* will not be dereferenced. */
1010 /* Copy from current to repopulate the vertex with correct values.
1012 copy_from_current(ctx);
1014 /* Replay stored vertices to translate them to new format here.
1016 * If there are copied vertices and the new (upgraded) attribute
1017 * has not been defined before, this list is somewhat degenerate,
1018 * and will need fixup at runtime.
1020 if (save->copied.nr) {
1021 const fi_type *data = save->copied.buffer;
1022 fi_type *dest = save->buffer_map;
1024 /* Need to note this and fix up at runtime (or loopback):
1026 if (attr != VBO_ATTRIB_POS && save->currentsz[attr][0] == 0) {
1028 save->dangling_attr_ref = GL_TRUE;
1031 for (i = 0; i < save->copied.nr; i++) {
1032 GLbitfield64 enabled = save->enabled;
1034 const int j = u_bit_scan64(&enabled);
1035 assert(save->attrsz[j]);
1038 COPY_CLEAN_4V_TYPE_AS_UNION(dest, oldsz, data,
1044 COPY_SZ_4V(dest, newsz, save->current[attr]);
1049 GLint sz = save->attrsz[j];
1050 COPY_SZ_4V(dest, sz, data);
1057 save->buffer_ptr = dest;
1058 save->vert_count += save->copied.nr;
1064 * This is called when the size of a vertex attribute changes.
1065 * For example, after seeing one or more glTexCoord2f() calls we
1066 * get a glTexCoord4f() or glTexCoord1f() call.
1069 fixup_vertex(struct gl_context *ctx, GLuint attr,
1070 GLuint sz, GLenum newType)
1072 struct vbo_save_context *save = &vbo_context(ctx)->save;
1074 if (sz > save->attrsz[attr] ||
1075 newType != save->attrtype[attr]) {
1076 /* New size is larger. Need to flush existing vertices and get
1077 * an enlarged vertex format.
1079 upgrade_vertex(ctx, attr, sz);
1081 else if (sz < save->active_sz[attr]) {
1083 const fi_type *id = vbo_get_default_vals_as_union(save->attrtype[attr]);
1085 /* New size is equal or smaller - just need to fill in some
1088 for (i = sz; i <= save->attrsz[attr]; i++)
1089 save->attrptr[attr][i - 1] = id[i - 1];
1092 save->active_sz[attr] = sz;
1097 * Reset the current size of all vertex attributes to the default
1098 * value of 0. This signals that we haven't yet seen any per-vertex
1099 * commands such as glNormal3f() or glTexCoord2f().
1102 reset_vertex(struct gl_context *ctx)
1104 struct vbo_save_context *save = &vbo_context(ctx)->save;
1106 while (save->enabled) {
1107 const int i = u_bit_scan64(&save->enabled);
1108 assert(save->attrsz[i]);
1109 save->attrsz[i] = 0;
1110 save->active_sz[i] = 0;
1113 save->vertex_size = 0;
1118 * If index=0, does glVertexAttrib*() alias glVertex() to emit a vertex?
1119 * It depends on a few things, including whether we're inside or outside
1123 is_vertex_position(const struct gl_context *ctx, GLuint index)
1125 return (index == 0 &&
1126 _mesa_attr_zero_aliases_vertex(ctx) &&
1127 _mesa_inside_dlist_begin_end(ctx));
1132 #define ERROR(err) _mesa_compile_error(ctx, err, __func__);
1135 /* Only one size for each attribute may be active at once. Eg. if
1136 * Color3f is installed/active, then Color4f may not be, even if the
1137 * vertex actually contains 4 color coordinates. This is because the
1138 * 3f version won't otherwise set color[3] to 1.0 -- this is the job
1139 * of the chooser function when switching between Color4f and Color3f.
1141 #define ATTR_UNION(A, N, T, C, V0, V1, V2, V3) \
1143 struct vbo_save_context *save = &vbo_context(ctx)->save; \
1144 int sz = (sizeof(C) / sizeof(GLfloat)); \
1146 if (save->active_sz[A] != N) \
1147 fixup_vertex(ctx, A, N * sz, T); \
1150 C *dest = (C *)save->attrptr[A]; \
1151 if (N>0) dest[0] = V0; \
1152 if (N>1) dest[1] = V1; \
1153 if (N>2) dest[2] = V2; \
1154 if (N>3) dest[3] = V3; \
1155 save->attrtype[A] = T; \
1161 for (i = 0; i < save->vertex_size; i++) \
1162 save->buffer_ptr[i] = save->vertex[i]; \
1164 save->buffer_ptr += save->vertex_size; \
1166 if (++save->vert_count >= save->max_vert) \
1167 wrap_filled_vertex(ctx); \
1171 #define TAG(x) _save_##x
1173 #include "vbo_attrib_tmp.h"
1177 #define MAT( ATTR, N, face, params ) \
1179 if (face != GL_BACK) \
1180 MAT_ATTR( ATTR, N, params ); /* front */ \
1181 if (face != GL_FRONT) \
1182 MAT_ATTR( ATTR + 1, N, params ); /* back */ \
1187 * Save a glMaterial call found between glBegin/End.
1188 * glMaterial calls outside Begin/End are handled in dlist.c.
1190 static void GLAPIENTRY
1191 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params)
1193 GET_CURRENT_CONTEXT(ctx);
1195 if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
1196 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(face)");
1202 MAT(VBO_ATTRIB_MAT_FRONT_EMISSION, 4, face, params);
1205 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1208 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1211 MAT(VBO_ATTRIB_MAT_FRONT_SPECULAR, 4, face, params);
1214 if (*params < 0 || *params > ctx->Const.MaxShininess) {
1215 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glMaterial(shininess)");
1218 MAT(VBO_ATTRIB_MAT_FRONT_SHININESS, 1, face, params);
1221 case GL_COLOR_INDEXES:
1222 MAT(VBO_ATTRIB_MAT_FRONT_INDEXES, 3, face, params);
1224 case GL_AMBIENT_AND_DIFFUSE:
1225 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1226 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1229 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(pname)");
1235 /* Cope with EvalCoord/CallList called within a begin/end object:
1236 * -- Flush current buffer
1237 * -- Fallback to opcodes for the rest of the begin/end object.
1240 dlist_fallback(struct gl_context *ctx)
1242 struct vbo_save_context *save = &vbo_context(ctx)->save;
1244 if (save->vert_count || save->prim_count) {
1245 if (save->prim_count > 0) {
1246 /* Close off in-progress primitive. */
1247 GLint i = save->prim_count - 1;
1248 save->prims[i].count = save->vert_count - save->prims[i].start;
1251 /* Need to replay this display list with loopback,
1252 * unfortunately, otherwise this primitive won't be handled
1255 save->dangling_attr_ref = GL_TRUE;
1257 compile_vertex_list(ctx);
1260 copy_to_current(ctx);
1262 reset_counters(ctx);
1263 if (save->out_of_memory) {
1264 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1267 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1269 ctx->Driver.SaveNeedFlush = GL_FALSE;
1273 static void GLAPIENTRY
1274 _save_EvalCoord1f(GLfloat u)
1276 GET_CURRENT_CONTEXT(ctx);
1277 dlist_fallback(ctx);
1278 CALL_EvalCoord1f(ctx->Save, (u));
1281 static void GLAPIENTRY
1282 _save_EvalCoord1fv(const GLfloat * v)
1284 GET_CURRENT_CONTEXT(ctx);
1285 dlist_fallback(ctx);
1286 CALL_EvalCoord1fv(ctx->Save, (v));
1289 static void GLAPIENTRY
1290 _save_EvalCoord2f(GLfloat u, GLfloat v)
1292 GET_CURRENT_CONTEXT(ctx);
1293 dlist_fallback(ctx);
1294 CALL_EvalCoord2f(ctx->Save, (u, v));
1297 static void GLAPIENTRY
1298 _save_EvalCoord2fv(const GLfloat * v)
1300 GET_CURRENT_CONTEXT(ctx);
1301 dlist_fallback(ctx);
1302 CALL_EvalCoord2fv(ctx->Save, (v));
1305 static void GLAPIENTRY
1306 _save_EvalPoint1(GLint i)
1308 GET_CURRENT_CONTEXT(ctx);
1309 dlist_fallback(ctx);
1310 CALL_EvalPoint1(ctx->Save, (i));
1313 static void GLAPIENTRY
1314 _save_EvalPoint2(GLint i, GLint j)
1316 GET_CURRENT_CONTEXT(ctx);
1317 dlist_fallback(ctx);
1318 CALL_EvalPoint2(ctx->Save, (i, j));
1321 static void GLAPIENTRY
1322 _save_CallList(GLuint l)
1324 GET_CURRENT_CONTEXT(ctx);
1325 dlist_fallback(ctx);
1326 CALL_CallList(ctx->Save, (l));
1329 static void GLAPIENTRY
1330 _save_CallLists(GLsizei n, GLenum type, const GLvoid * v)
1332 GET_CURRENT_CONTEXT(ctx);
1333 dlist_fallback(ctx);
1334 CALL_CallLists(ctx->Save, (n, type, v));
1340 * Called when a glBegin is getting compiled into a display list.
1341 * Updating of ctx->Driver.CurrentSavePrimitive is already taken care of.
1344 vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode,
1345 bool no_current_update)
1347 struct vbo_save_context *save = &vbo_context(ctx)->save;
1348 const GLuint i = save->prim_count++;
1350 ctx->Driver.CurrentSavePrimitive = mode;
1352 assert(i < save->prim_max);
1353 save->prims[i].mode = mode & VBO_SAVE_PRIM_MODE_MASK;
1354 save->prims[i].begin = 1;
1355 save->prims[i].end = 0;
1356 save->prims[i].start = save->vert_count;
1357 save->prims[i].count = 0;
1359 save->no_current_update = no_current_update;
1361 if (save->out_of_memory) {
1362 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1365 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
1368 /* We need to call vbo_save_SaveFlushVertices() if there's state change */
1369 ctx->Driver.SaveNeedFlush = GL_TRUE;
1373 static void GLAPIENTRY
1376 GET_CURRENT_CONTEXT(ctx);
1377 struct vbo_save_context *save = &vbo_context(ctx)->save;
1378 const GLint i = save->prim_count - 1;
1380 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1381 save->prims[i].end = 1;
1382 save->prims[i].count = (save->vert_count - save->prims[i].start);
1384 if (i == (GLint) save->prim_max - 1) {
1385 compile_vertex_list(ctx);
1386 assert(save->copied.nr == 0);
1389 /* Swap out this vertex format while outside begin/end. Any color,
1390 * etc. received between here and the next begin will be compiled
1393 if (save->out_of_memory) {
1394 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1397 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1402 static void GLAPIENTRY
1403 _save_Begin(GLenum mode)
1405 GET_CURRENT_CONTEXT(ctx);
1407 _mesa_compile_error(ctx, GL_INVALID_OPERATION, "Recursive glBegin");
1411 static void GLAPIENTRY
1412 _save_PrimitiveRestartNV(void)
1414 GET_CURRENT_CONTEXT(ctx);
1415 struct vbo_save_context *save = &vbo_context(ctx)->save;
1417 if (save->prim_count == 0) {
1418 /* We're not inside a glBegin/End pair, so calling glPrimitiverRestartNV
1421 _mesa_compile_error(ctx, GL_INVALID_OPERATION,
1422 "glPrimitiveRestartNV called outside glBegin/End");
1424 /* get current primitive mode */
1425 GLenum curPrim = save->prims[save->prim_count - 1].mode;
1426 bool no_current_update = save->no_current_update;
1428 /* restart primitive */
1429 CALL_End(ctx->CurrentServerDispatch, ());
1430 vbo_save_NotifyBegin(ctx, curPrim, no_current_update);
1435 /* Unlike the functions above, these are to be hooked into the vtxfmt
1436 * maintained in ctx->ListState, active when the list is known or
1437 * suspected to be outside any begin/end primitive.
1438 * Note: OBE = Outside Begin/End
1440 static void GLAPIENTRY
1441 _save_OBE_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
1443 GET_CURRENT_CONTEXT(ctx);
1444 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1446 vbo_save_NotifyBegin(ctx, GL_QUADS, false);
1447 CALL_Vertex2f(dispatch, (x1, y1));
1448 CALL_Vertex2f(dispatch, (x2, y1));
1449 CALL_Vertex2f(dispatch, (x2, y2));
1450 CALL_Vertex2f(dispatch, (x1, y2));
1451 CALL_End(dispatch, ());
1455 static void GLAPIENTRY
1456 _save_OBE_Rectd(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2)
1458 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1461 static void GLAPIENTRY
1462 _save_OBE_Rectdv(const GLdouble *v1, const GLdouble *v2)
1464 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1467 static void GLAPIENTRY
1468 _save_OBE_Rectfv(const GLfloat *v1, const GLfloat *v2)
1470 _save_OBE_Rectf(v1[0], v1[1], v2[0], v2[1]);
1473 static void GLAPIENTRY
1474 _save_OBE_Recti(GLint x1, GLint y1, GLint x2, GLint y2)
1476 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1479 static void GLAPIENTRY
1480 _save_OBE_Rectiv(const GLint *v1, const GLint *v2)
1482 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1485 static void GLAPIENTRY
1486 _save_OBE_Rects(GLshort x1, GLshort y1, GLshort x2, GLshort y2)
1488 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1491 static void GLAPIENTRY
1492 _save_OBE_Rectsv(const GLshort *v1, const GLshort *v2)
1494 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1498 _ensure_draws_fits_in_storage(struct gl_context *ctx, int primcount, int vertcount)
1500 struct vbo_save_context *save = &vbo_context(ctx)->save;
1502 bool realloc_prim = save->prim_count + primcount > save->prim_max;
1503 bool realloc_vert = save->vertex_size && (save->vert_count + vertcount >= save->max_vert);
1505 if (realloc_prim || realloc_vert) {
1506 if (save->vert_count || save->prim_count)
1507 compile_vertex_list(ctx);
1508 realloc_storage(ctx, realloc_prim ? primcount : -1, realloc_vert ? vertcount : -1);
1509 reset_counters(ctx);
1510 assert(save->prim_max);
1515 static void GLAPIENTRY
1516 _save_OBE_DrawArrays(GLenum mode, GLint start, GLsizei count)
1518 GET_CURRENT_CONTEXT(ctx);
1519 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1520 struct vbo_save_context *save = &vbo_context(ctx)->save;
1523 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1524 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)");
1528 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawArrays(count<0)");
1532 if (save->out_of_memory)
1535 _ensure_draws_fits_in_storage(ctx, 1, count);
1537 /* Make sure to process any VBO binding changes */
1538 _mesa_update_state(ctx);
1540 _mesa_vao_map_arrays(ctx, vao, GL_MAP_READ_BIT);
1542 vbo_save_NotifyBegin(ctx, mode, true);
1544 for (i = 0; i < count; i++)
1545 _mesa_array_element(ctx, start + i);
1546 CALL_End(ctx->CurrentServerDispatch, ());
1548 _mesa_vao_unmap_arrays(ctx, vao);
1552 static void GLAPIENTRY
1553 _save_OBE_MultiDrawArrays(GLenum mode, const GLint *first,
1554 const GLsizei *count, GLsizei primcount)
1556 GET_CURRENT_CONTEXT(ctx);
1559 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1560 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMultiDrawArrays(mode)");
1564 if (primcount < 0) {
1565 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1566 "glMultiDrawArrays(primcount<0)");
1570 unsigned vertcount = 0;
1571 for (i = 0; i < primcount; i++) {
1573 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1574 "glMultiDrawArrays(count[i]<0)");
1577 vertcount += count[i];
1580 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1582 for (i = 0; i < primcount; i++) {
1584 _save_OBE_DrawArrays(mode, first[i], count[i]);
1591 array_element(struct gl_context *ctx,
1592 GLint basevertex, GLuint elt, unsigned index_size_shift)
1594 /* Section 10.3.5 Primitive Restart:
1596 * When one of the *BaseVertex drawing commands specified in section 10.5
1597 * is used, the primitive restart comparison occurs before the basevertex
1598 * offset is added to the array index.
1600 /* If PrimitiveRestart is enabled and the index is the RestartIndex
1601 * then we call PrimitiveRestartNV and return.
1603 if (ctx->Array._PrimitiveRestart[index_size_shift] &&
1604 elt == ctx->Array._RestartIndex[index_size_shift]) {
1605 CALL_PrimitiveRestartNV(ctx->CurrentServerDispatch, ());
1609 _mesa_array_element(ctx, basevertex + elt);
1613 /* Could do better by copying the arrays and element list intact and
1614 * then emitting an indexed prim at runtime.
1616 static void GLAPIENTRY
1617 _save_OBE_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
1618 const GLvoid * indices, GLint basevertex)
1620 GET_CURRENT_CONTEXT(ctx);
1621 struct vbo_save_context *save = &vbo_context(ctx)->save;
1622 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1623 struct gl_buffer_object *indexbuf = vao->IndexBufferObj;
1626 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1627 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawElements(mode)");
1631 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1634 if (type != GL_UNSIGNED_BYTE &&
1635 type != GL_UNSIGNED_SHORT &&
1636 type != GL_UNSIGNED_INT) {
1637 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1641 if (save->out_of_memory)
1644 _ensure_draws_fits_in_storage(ctx, 1, count);
1646 /* Make sure to process any VBO binding changes */
1647 _mesa_update_state(ctx);
1649 _mesa_vao_map(ctx, vao, GL_MAP_READ_BIT);
1653 ADD_POINTERS(indexbuf->Mappings[MAP_INTERNAL].Pointer, indices);
1655 vbo_save_NotifyBegin(ctx, mode, true);
1658 case GL_UNSIGNED_BYTE:
1659 for (i = 0; i < count; i++)
1660 array_element(ctx, basevertex, ((GLubyte *) indices)[i], 0);
1662 case GL_UNSIGNED_SHORT:
1663 for (i = 0; i < count; i++)
1664 array_element(ctx, basevertex, ((GLushort *) indices)[i], 1);
1666 case GL_UNSIGNED_INT:
1667 for (i = 0; i < count; i++)
1668 array_element(ctx, basevertex, ((GLuint *) indices)[i], 2);
1671 _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)");
1675 CALL_End(ctx->CurrentServerDispatch, ());
1677 _mesa_vao_unmap(ctx, vao);
1680 static void GLAPIENTRY
1681 _save_OBE_DrawElements(GLenum mode, GLsizei count, GLenum type,
1682 const GLvoid * indices)
1684 _save_OBE_DrawElementsBaseVertex(mode, count, type, indices, 0);
1688 static void GLAPIENTRY
1689 _save_OBE_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
1690 GLsizei count, GLenum type,
1691 const GLvoid * indices)
1693 GET_CURRENT_CONTEXT(ctx);
1694 struct vbo_save_context *save = &vbo_context(ctx)->save;
1696 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1697 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)");
1701 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1702 "glDrawRangeElements(count<0)");
1705 if (type != GL_UNSIGNED_BYTE &&
1706 type != GL_UNSIGNED_SHORT &&
1707 type != GL_UNSIGNED_INT) {
1708 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(type)");
1712 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1713 "glDrawRangeElements(end < start)");
1717 if (save->out_of_memory)
1720 _save_OBE_DrawElements(mode, count, type, indices);
1724 static void GLAPIENTRY
1725 _save_OBE_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type,
1726 const GLvoid * const *indices, GLsizei primcount)
1728 GET_CURRENT_CONTEXT(ctx);
1729 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1733 for (i = 0; i < primcount; i++) {
1734 vertcount += count[i];
1736 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1738 for (i = 0; i < primcount; i++) {
1740 CALL_DrawElements(dispatch, (mode, count[i], type, indices[i]));
1746 static void GLAPIENTRY
1747 _save_OBE_MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count,
1749 const GLvoid * const *indices,
1751 const GLint *basevertex)
1753 GET_CURRENT_CONTEXT(ctx);
1754 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1758 for (i = 0; i < primcount; i++) {
1759 vertcount += count[i];
1761 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1763 for (i = 0; i < primcount; i++) {
1765 CALL_DrawElementsBaseVertex(dispatch, (mode, count[i], type,
1774 vtxfmt_init(struct gl_context *ctx)
1776 struct vbo_save_context *save = &vbo_context(ctx)->save;
1777 GLvertexformat *vfmt = &save->vtxfmt;
1779 #define NAME_AE(x) _ae_##x
1780 #define NAME_CALLLIST(x) _save_##x
1781 #define NAME(x) _save_##x
1782 #define NAME_ES(x) _save_##x##ARB
1784 #include "vbo_init_tmp.h"
1789 * Initialize the dispatch table with the VBO functions for display
1793 vbo_initialize_save_dispatch(const struct gl_context *ctx,
1794 struct _glapi_table *exec)
1796 SET_DrawArrays(exec, _save_OBE_DrawArrays);
1797 SET_MultiDrawArrays(exec, _save_OBE_MultiDrawArrays);
1798 SET_DrawElements(exec, _save_OBE_DrawElements);
1799 SET_DrawElementsBaseVertex(exec, _save_OBE_DrawElementsBaseVertex);
1800 SET_DrawRangeElements(exec, _save_OBE_DrawRangeElements);
1801 SET_MultiDrawElementsEXT(exec, _save_OBE_MultiDrawElements);
1802 SET_MultiDrawElementsBaseVertex(exec, _save_OBE_MultiDrawElementsBaseVertex);
1803 SET_Rectf(exec, _save_OBE_Rectf);
1804 SET_Rectd(exec, _save_OBE_Rectd);
1805 SET_Rectdv(exec, _save_OBE_Rectdv);
1806 SET_Rectfv(exec, _save_OBE_Rectfv);
1807 SET_Recti(exec, _save_OBE_Recti);
1808 SET_Rectiv(exec, _save_OBE_Rectiv);
1809 SET_Rects(exec, _save_OBE_Rects);
1810 SET_Rectsv(exec, _save_OBE_Rectsv);
1812 /* Note: other glDraw functins aren't compiled into display lists */
1818 vbo_save_SaveFlushVertices(struct gl_context *ctx)
1820 struct vbo_save_context *save = &vbo_context(ctx)->save;
1822 /* Noop when we are actually active:
1824 if (ctx->Driver.CurrentSavePrimitive <= PRIM_MAX)
1827 if (save->vert_count || save->prim_count)
1828 compile_vertex_list(ctx);
1830 copy_to_current(ctx);
1832 reset_counters(ctx);
1833 ctx->Driver.SaveNeedFlush = GL_FALSE;
1838 * Called from glNewList when we're starting to compile a display list.
1841 vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode)
1843 struct vbo_save_context *save = &vbo_context(ctx)->save;
1848 if (!save->prim_store)
1849 save->prim_store = alloc_prim_store(0);
1851 if (!save->vertex_store)
1852 save->vertex_store = alloc_vertex_store(ctx, 0);
1854 save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
1857 reset_counters(ctx);
1858 ctx->Driver.SaveNeedFlush = GL_FALSE;
1863 * Called from glEndList when we're finished compiling a display list.
1866 vbo_save_EndList(struct gl_context *ctx)
1868 struct vbo_save_context *save = &vbo_context(ctx)->save;
1870 /* EndList called inside a (saved) Begin/End pair?
1872 if (_mesa_inside_dlist_begin_end(ctx)) {
1873 if (save->prim_count > 0) {
1874 GLint i = save->prim_count - 1;
1875 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1876 save->prims[i].end = 0;
1877 save->prims[i].count = save->vert_count - save->prims[i].start;
1880 /* Make sure this vertex list gets replayed by the "loopback"
1883 save->dangling_attr_ref = GL_TRUE;
1884 vbo_save_SaveFlushVertices(ctx);
1886 /* Swap out this vertex format while outside begin/end. Any color,
1887 * etc. received between here and the next begin will be compiled
1890 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1893 vbo_save_unmap_vertex_store(ctx, save->vertex_store);
1895 assert(save->vertex_size == 0);
1900 * Called from the display list code when we're about to execute a
1904 vbo_save_BeginCallList(struct gl_context *ctx, struct gl_display_list *dlist)
1906 struct vbo_save_context *save = &vbo_context(ctx)->save;
1907 save->replay_flags |= dlist->Flags;
1912 * Called from the display list code when we're finished executing a
1916 vbo_save_EndCallList(struct gl_context *ctx)
1918 struct vbo_save_context *save = &vbo_context(ctx)->save;
1920 if (ctx->ListState.CallDepth == 1)
1921 save->replay_flags = 0;
1926 * Called by display list code when a display list is being deleted.
1929 vbo_destroy_vertex_list(struct gl_context *ctx, void *data)
1931 struct vbo_save_vertex_list *node = (struct vbo_save_vertex_list *) data;
1933 for (gl_vertex_processing_mode vpm = VP_MODE_FF; vpm < VP_MODE_MAX; ++vpm)
1934 _mesa_reference_vao(ctx, &node->VAO[vpm], NULL);
1936 if (--node->prim_store->refcount == 0) {
1937 free(node->prim_store->prims);
1938 free(node->prim_store);
1941 free(node->merged.prims);
1943 _mesa_reference_buffer_object(ctx, &node->merged.ib.obj, NULL);
1944 free(node->current_data);
1945 node->current_data = NULL;
1950 vbo_print_vertex_list(struct gl_context *ctx, void *data, FILE *f)
1952 struct vbo_save_vertex_list *node = (struct vbo_save_vertex_list *) data;
1954 struct gl_buffer_object *buffer = node->VAO[0]->BufferBinding[0].BufferObj;
1955 const GLuint vertex_size = _vbo_save_get_stride(node)/sizeof(GLfloat);
1958 fprintf(f, "VBO-VERTEX-LIST, %u vertices, %d primitives, %d vertsize, "
1960 node->vertex_count, node->prim_count, vertex_size,
1963 for (i = 0; i < node->prim_count; i++) {
1964 struct _mesa_prim *prim = &node->prims[i];
1965 fprintf(f, " prim %d: %s %d..%d %s %s\n",
1967 _mesa_lookup_prim_by_nr(prim->mode),
1969 prim->start + prim->count,
1970 (prim->begin) ? "BEGIN" : "(wrap)",
1971 (prim->end) ? "END" : "(wrap)");
1977 * Called during context creation/init.
1980 current_init(struct gl_context *ctx)
1982 struct vbo_save_context *save = &vbo_context(ctx)->save;
1985 for (i = VBO_ATTRIB_POS; i <= VBO_ATTRIB_GENERIC15; i++) {
1986 const GLuint j = i - VBO_ATTRIB_POS;
1987 assert(j < VERT_ATTRIB_MAX);
1988 save->currentsz[i] = &ctx->ListState.ActiveAttribSize[j];
1989 save->current[i] = (fi_type *) ctx->ListState.CurrentAttrib[j];
1992 for (i = VBO_ATTRIB_FIRST_MATERIAL; i <= VBO_ATTRIB_LAST_MATERIAL; i++) {
1993 const GLuint j = i - VBO_ATTRIB_FIRST_MATERIAL;
1994 assert(j < MAT_ATTRIB_MAX);
1995 save->currentsz[i] = &ctx->ListState.ActiveMaterialSize[j];
1996 save->current[i] = (fi_type *) ctx->ListState.CurrentMaterial[j];
2002 * Initialize the display list compiler. Called during context creation.
2005 vbo_save_api_init(struct vbo_save_context *save)
2007 struct gl_context *ctx = gl_context_from_vbo_save(save);
2009 save->opcode_vertex_list =
2010 _mesa_dlist_alloc_opcode(ctx,
2011 sizeof(struct vbo_save_vertex_list),
2012 vbo_save_playback_vertex_list,
2013 vbo_destroy_vertex_list,
2014 vbo_print_vertex_list);
2018 _mesa_noop_vtxfmt_init(ctx, &save->vtxfmt_noop);