1 /**************************************************************************
3 Copyright 2002-2008 VMware, Inc.
7 Permission is hereby granted, free of charge, to any person obtaining a
8 copy of this software and associated documentation files (the "Software"),
9 to deal in the Software without restriction, including without limitation
10 on the rights to use, copy, modify, merge, publish, distribute, sub
11 license, and/or sell copies of the Software, and to permit persons to whom
12 the Software is furnished to do so, subject to the following conditions:
14 The above copyright notice and this permission notice (including the next
15 paragraph) shall be included in all copies or substantial portions of the
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 VMWARE AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 * Keith Whitwell <keithw@vmware.com>
35 /* Display list compiler attempts to store lists of vertices with the
36 * same vertex layout. Additionally it attempts to minimize the need
37 * for execute-time fixup of these vertex lists, allowing them to be
40 * There are still some circumstances where this can be thwarted, for
41 * example by building a list that consists of one very long primitive
42 * (eg Begin(Triangles), 1000 vertices, End), and calling that list
43 * from inside a different begin/end object (Begin(Lines), CallList,
46 * In that case the code will have to replay the list as individual
47 * commands through the Exec dispatch table, or fix up the copied
48 * vertices at execute-time.
50 * The other case where fixup is required is when a vertex attribute
51 * is introduced in the middle of a primitive. Eg:
53 * TexCoord1f() Vertex2f()
54 * TexCoord1f() Color3f() Vertex2f()
57 * If the current value of Color isn't known at compile-time, this
58 * primitive will require fixup.
61 * The list compiler currently doesn't attempt to compile lists
62 * containing EvalCoord or EvalPoint commands. On encountering one of
63 * these, compilation falls back to opcodes.
65 * This could be improved to fallback only when a mix of EvalCoord and
66 * Vertex commands are issued within a single primitive.
70 #include "main/glheader.h"
71 #include "main/arrayobj.h"
72 #include "main/bufferobj.h"
73 #include "main/context.h"
74 #include "main/dlist.h"
75 #include "main/enums.h"
76 #include "main/eval.h"
77 #include "main/macros.h"
78 #include "main/draw_validate.h"
79 #include "main/api_arrayelt.h"
80 #include "main/vtxfmt.h"
81 #include "main/dispatch.h"
82 #include "main/state.h"
83 #include "main/varray.h"
84 #include "util/bitscan.h"
85 #include "util/u_memory.h"
87 #include "gallium/include/pipe/p_state.h"
90 #include "vbo_private.h"
98 * Display list flag only used by this VBO code.
100 #define DLIST_DANGLING_REFS 0x1
103 /* An interesting VBO number/name to help with debugging */
104 #define VBO_BUF_ID 12345
106 static void GLAPIENTRY
107 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params);
109 static void GLAPIENTRY
110 _save_EvalCoord1f(GLfloat u);
112 static void GLAPIENTRY
113 _save_EvalCoord2f(GLfloat u, GLfloat v);
116 * NOTE: Old 'parity' issue is gone, but copying can still be
117 * wrong-footed on replay.
120 copy_vertices(struct gl_context *ctx,
121 const struct vbo_save_vertex_list *node,
122 const fi_type * src_buffer)
124 struct vbo_save_context *save = &vbo_context(ctx)->save;
125 struct _mesa_prim *prim = &node->prims[node->prim_count - 1];
126 GLuint sz = save->vertex_size;
127 const fi_type *src = src_buffer + prim->start * sz;
128 fi_type *dst = save->copied.buffer;
133 return vbo_copy_vertices(ctx, prim->mode, prim->start, &prim->count,
134 prim->begin, sz, true, dst, src);
138 static struct vbo_save_vertex_store *
139 alloc_vertex_store(struct gl_context *ctx, int vertex_count)
141 struct vbo_save_context *save = &vbo_context(ctx)->save;
142 struct vbo_save_vertex_store *vertex_store =
143 CALLOC_STRUCT(vbo_save_vertex_store);
145 int size = MAX2(vertex_count * save->vertex_size, VBO_SAVE_BUFFER_SIZE);
147 /* obj->Name needs to be non-zero, but won't ever be examined more
148 * closely than that. In particular these buffers won't be entered
149 * into the hash and can never be confused with ones visible to the
150 * user. Perhaps there could be a special number for internal
153 vertex_store->bufferobj = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID);
154 if (vertex_store->bufferobj) {
155 save->out_of_memory =
156 !ctx->Driver.BufferData(ctx,
158 size * sizeof(GLfloat),
159 NULL, GL_STATIC_DRAW_ARB,
161 GL_DYNAMIC_STORAGE_BIT,
162 vertex_store->bufferobj);
165 save->out_of_memory = GL_TRUE;
168 if (save->out_of_memory) {
169 _mesa_error(ctx, GL_OUT_OF_MEMORY, "internal VBO allocation");
170 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
173 vertex_store->buffer_map = NULL;
174 vertex_store->used = 0;
181 free_vertex_store(struct gl_context *ctx,
182 struct vbo_save_vertex_store *vertex_store)
184 assert(!vertex_store->buffer_map);
186 if (vertex_store->bufferobj) {
187 _mesa_reference_buffer_object(ctx, &vertex_store->bufferobj, NULL);
195 vbo_save_map_vertex_store(struct gl_context *ctx,
196 struct vbo_save_vertex_store *vertex_store)
198 const GLbitfield access = (GL_MAP_WRITE_BIT |
199 GL_MAP_INVALIDATE_RANGE_BIT |
200 GL_MAP_UNSYNCHRONIZED_BIT |
201 GL_MAP_FLUSH_EXPLICIT_BIT |
204 assert(vertex_store->bufferobj);
205 assert(!vertex_store->buffer_map); /* the buffer should not be mapped */
207 if (vertex_store->bufferobj->Size > 0) {
208 /* Map the remaining free space in the VBO */
209 GLintptr offset = vertex_store->used * sizeof(GLfloat);
210 GLsizeiptr size = vertex_store->bufferobj->Size - offset;
211 fi_type *range = (fi_type *)
212 ctx->Driver.MapBufferRange(ctx, offset, size, access,
213 vertex_store->bufferobj,
216 /* compute address of start of whole buffer (needed elsewhere) */
217 vertex_store->buffer_map = range - vertex_store->used;
218 assert(vertex_store->buffer_map);
222 vertex_store->buffer_map = NULL;
227 /* probably ran out of memory for buffers */
234 vbo_save_unmap_vertex_store(struct gl_context *ctx,
235 struct vbo_save_vertex_store *vertex_store)
237 if (vertex_store->bufferobj->Size > 0) {
239 GLsizeiptr length = vertex_store->used * sizeof(GLfloat)
240 - vertex_store->bufferobj->Mappings[MAP_INTERNAL].Offset;
242 /* Explicitly flush the region we wrote to */
243 ctx->Driver.FlushMappedBufferRange(ctx, offset, length,
244 vertex_store->bufferobj,
247 ctx->Driver.UnmapBuffer(ctx, vertex_store->bufferobj, MAP_INTERNAL);
249 vertex_store->buffer_map = NULL;
253 static struct vbo_save_primitive_store *
254 alloc_prim_store(int prim_count)
256 struct vbo_save_primitive_store *store =
257 CALLOC_STRUCT(vbo_save_primitive_store);
258 store->size = MAX2(prim_count, VBO_SAVE_PRIM_SIZE);
259 store->prims = calloc(store->size, sizeof(struct _mesa_prim));
267 reset_counters(struct gl_context *ctx)
269 struct vbo_save_context *save = &vbo_context(ctx)->save;
271 save->prims = save->prim_store->prims + save->prim_store->used;
272 save->buffer_map = save->vertex_store->buffer_map + save->vertex_store->used;
274 assert(save->buffer_map == save->buffer_ptr);
276 if (save->vertex_size)
277 save->max_vert = (save->vertex_store->bufferobj->Size / sizeof(float) - save->vertex_store->used) /
282 save->vert_count = 0;
283 save->prim_count = 0;
284 save->prim_max = save->prim_store->size - save->prim_store->used;
285 save->dangling_attr_ref = GL_FALSE;
289 * For a list of prims, try merging prims that can just be extensions of the
293 merge_prims(struct gl_context *ctx, struct _mesa_prim *prim_list,
297 struct _mesa_prim *prev_prim = prim_list;
299 for (i = 1; i < *prim_count; i++) {
300 struct _mesa_prim *this_prim = prim_list + i;
302 vbo_try_prim_conversion(&this_prim->mode, &this_prim->count);
304 if (vbo_merge_draws(ctx, true,
305 prev_prim->mode, this_prim->mode,
306 prev_prim->start, this_prim->start,
307 &prev_prim->count, this_prim->count,
308 prev_prim->basevertex, this_prim->basevertex,
310 this_prim->begin, this_prim->end)) {
311 /* We've found a prim that just extend the previous one. Tack it
312 * onto the previous one, and let this primitive struct get dropped.
317 /* If any previous primitives have been dropped, then we need to copy
318 * this later one into the next available slot.
321 if (prev_prim != this_prim)
322 *prev_prim = *this_prim;
325 *prim_count = prev_prim - prim_list + 1;
330 * Convert GL_LINE_LOOP primitive into GL_LINE_STRIP so that drivers
331 * don't have to worry about handling the _mesa_prim::begin/end flags.
332 * See https://bugs.freedesktop.org/show_bug.cgi?id=81174
335 convert_line_loop_to_strip(struct vbo_save_context *save,
336 struct vbo_save_vertex_list *node)
338 struct _mesa_prim *prim = &node->prims[node->prim_count - 1];
340 assert(prim->mode == GL_LINE_LOOP);
343 /* Copy the 0th vertex to end of the buffer and extend the
344 * vertex count by one to finish the line loop.
346 const GLuint sz = save->vertex_size;
348 const fi_type *src = save->buffer_map + prim->start * sz;
350 fi_type *dst = save->buffer_map + (prim->start + prim->count) * sz;
352 memcpy(dst, src, sz * sizeof(float));
355 node->vertex_count++;
357 save->buffer_ptr += sz;
358 save->vertex_store->used += sz;
362 /* Drawing the second or later section of a long line loop.
363 * Skip the 0th vertex.
369 prim->mode = GL_LINE_STRIP;
373 /* Compare the present vao if it has the same setup. */
375 compare_vao(gl_vertex_processing_mode mode,
376 const struct gl_vertex_array_object *vao,
377 const struct gl_buffer_object *bo, GLintptr buffer_offset,
378 GLuint stride, GLbitfield64 vao_enabled,
379 const GLubyte size[VBO_ATTRIB_MAX],
380 const GLenum16 type[VBO_ATTRIB_MAX],
381 const GLuint offset[VBO_ATTRIB_MAX])
386 /* If the enabled arrays are not the same we are not equal. */
387 if (vao_enabled != vao->Enabled)
390 /* Check the buffer binding at 0 */
391 if (vao->BufferBinding[0].BufferObj != bo)
393 /* BufferBinding[0].Offset != buffer_offset is checked per attribute */
394 if (vao->BufferBinding[0].Stride != stride)
396 assert(vao->BufferBinding[0].InstanceDivisor == 0);
398 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space */
399 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
401 /* Now check the enabled arrays */
402 GLbitfield mask = vao_enabled;
404 const int attr = u_bit_scan(&mask);
405 const unsigned char vbo_attr = vao_to_vbo_map[attr];
406 const GLenum16 tp = type[vbo_attr];
407 const GLintptr off = offset[vbo_attr] + buffer_offset;
408 const struct gl_array_attributes *attrib = &vao->VertexAttrib[attr];
409 if (attrib->RelativeOffset + vao->BufferBinding[0].Offset != off)
411 if (attrib->Format.Type != tp)
413 if (attrib->Format.Size != size[vbo_attr])
415 assert(attrib->Format.Format == GL_RGBA);
416 assert(attrib->Format.Normalized == GL_FALSE);
417 assert(attrib->Format.Integer == vbo_attrtype_to_integer_flag(tp));
418 assert(attrib->Format.Doubles == vbo_attrtype_to_double_flag(tp));
419 assert(attrib->BufferBindingIndex == 0);
426 /* Create or reuse the vao for the vertex processing mode. */
428 update_vao(struct gl_context *ctx,
429 gl_vertex_processing_mode mode,
430 struct gl_vertex_array_object **vao,
431 struct gl_buffer_object *bo, GLintptr buffer_offset,
432 GLuint stride, GLbitfield64 vbo_enabled,
433 const GLubyte size[VBO_ATTRIB_MAX],
434 const GLenum16 type[VBO_ATTRIB_MAX],
435 const GLuint offset[VBO_ATTRIB_MAX])
437 /* Compute the bitmasks of vao_enabled arrays */
438 GLbitfield vao_enabled = _vbo_get_vao_enabled_from_vbo(mode, vbo_enabled);
441 * Check if we can possibly reuse the exisiting one.
442 * In the long term we should reset them when something changes.
444 if (compare_vao(mode, *vao, bo, buffer_offset, stride,
445 vao_enabled, size, type, offset))
448 /* The initial refcount is 1 */
449 _mesa_reference_vao(ctx, vao, NULL);
450 *vao = _mesa_new_vao(ctx, ~((GLuint)0));
453 * assert(stride <= ctx->Const.MaxVertexAttribStride);
454 * MaxVertexAttribStride is not set for drivers that does not
455 * expose GL 44 or GLES 31.
458 /* Bind the buffer object at binding point 0 */
459 _mesa_bind_vertex_buffer(ctx, *vao, 0, bo, buffer_offset, stride, false,
462 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space
463 * Note that the position/generic0 aliasing is done in the VAO.
465 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
466 /* Now set the enable arrays */
467 GLbitfield mask = vao_enabled;
469 const int vao_attr = u_bit_scan(&mask);
470 const GLubyte vbo_attr = vao_to_vbo_map[vao_attr];
471 assert(offset[vbo_attr] <= ctx->Const.MaxVertexAttribRelativeOffset);
473 _vbo_set_attrib_format(ctx, *vao, vao_attr, buffer_offset,
474 size[vbo_attr], type[vbo_attr], offset[vbo_attr]);
475 _mesa_vertex_attrib_binding(ctx, *vao, vao_attr, 0);
477 _mesa_enable_vertex_array_attribs(ctx, *vao, vao_enabled);
478 assert(vao_enabled == (*vao)->Enabled);
479 assert((vao_enabled & ~(*vao)->VertexAttribBufferMask) == 0);
481 /* Finalize and freeze the VAO */
482 _mesa_set_vao_immutable(ctx, *vao);
487 realloc_storage(struct gl_context *ctx, int prim_count, int vertex_count)
489 struct vbo_save_context *save = &vbo_context(ctx)->save;
490 if (vertex_count >= 0) {
493 vbo_save_unmap_vertex_store(ctx, save->vertex_store);
495 /* Release old reference:
497 free_vertex_store(ctx, save->vertex_store);
498 save->vertex_store = NULL;
499 /* When we have a new vbo, we will for sure need a new vao */
500 for (gl_vertex_processing_mode vpm = 0; vpm < VP_MODE_MAX; ++vpm)
501 _mesa_reference_vao(ctx, &save->VAO[vpm], NULL);
503 /* Allocate and map new store:
505 save->vertex_store = alloc_vertex_store(ctx, vertex_count);
506 save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
507 save->out_of_memory = save->buffer_ptr == NULL;
510 if (prim_count >= 0) {
511 if (--save->prim_store->refcount == 0) {
512 free(save->prim_store->prims);
513 free(save->prim_store);
515 save->prim_store = alloc_prim_store(prim_count);
521 * Insert the active immediate struct onto the display list currently
525 compile_vertex_list(struct gl_context *ctx)
527 struct vbo_save_context *save = &vbo_context(ctx)->save;
528 struct vbo_save_vertex_list *node;
530 /* Allocate space for this structure in the display list currently
533 node = (struct vbo_save_vertex_list *)
534 _mesa_dlist_alloc_vertex_list(ctx);
539 memset(node, 0, sizeof(struct vbo_save_vertex_list));
541 /* Make sure the pointer is aligned to the size of a pointer */
542 assert((GLintptr) node % sizeof(void *) == 0);
544 /* Duplicate our template, increment refcounts to the storage structs:
546 GLintptr old_offset = 0;
548 old_offset = save->VAO[0]->BufferBinding[0].Offset
549 + save->VAO[0]->VertexAttrib[VERT_ATTRIB_POS].RelativeOffset;
551 const GLsizei stride = save->vertex_size*sizeof(GLfloat);
552 GLintptr buffer_offset =
553 (save->buffer_map - save->vertex_store->buffer_map) * sizeof(GLfloat);
554 assert(old_offset <= buffer_offset);
555 const GLintptr offset_diff = buffer_offset - old_offset;
556 GLuint start_offset = 0;
557 if (offset_diff > 0 && stride > 0 && offset_diff % stride == 0) {
558 /* The vertex size is an exact multiple of the buffer offset.
559 * This means that we can use zero-based vertex attribute pointers
560 * and specify the start of the primitive with the _mesa_prim::start
561 * field. This results in issuing several draw calls with identical
562 * vertex attribute information. This can result in fewer state
563 * changes in drivers. In particular, the Gallium CSO module will
564 * filter out redundant vertex buffer changes.
566 /* We cannot immediately update the primitives as some methods below
567 * still need the uncorrected start vertices
569 start_offset = offset_diff/stride;
570 assert(old_offset == buffer_offset - offset_diff);
571 buffer_offset = old_offset;
573 GLuint offsets[VBO_ATTRIB_MAX];
574 for (unsigned i = 0, offset = 0; i < VBO_ATTRIB_MAX; ++i) {
576 offset += save->attrsz[i] * sizeof(GLfloat);
578 node->vertex_count = save->vert_count;
579 node->wrap_count = save->copied.nr;
580 node->prims = save->prims;
581 node->merged.ib.obj = NULL;
582 node->prim_count = save->prim_count;
583 node->prim_store = save->prim_store;
585 /* Create a pair of VAOs for the possible VERTEX_PROCESSING_MODEs
586 * Note that this may reuse the previous one of possible.
588 for (gl_vertex_processing_mode vpm = VP_MODE_FF; vpm < VP_MODE_MAX; ++vpm) {
589 /* create or reuse the vao */
590 update_vao(ctx, vpm, &save->VAO[vpm],
591 save->vertex_store->bufferobj, buffer_offset, stride,
592 save->enabled, save->attrsz, save->attrtype, offsets);
593 /* Reference the vao in the dlist */
594 node->VAO[vpm] = NULL;
595 _mesa_reference_vao(ctx, &node->VAO[vpm], save->VAO[vpm]);
598 node->prim_store->refcount++;
600 if (save->no_current_update) {
601 node->current_data = NULL;
604 GLuint current_size = save->vertex_size - save->attrsz[0];
605 node->current_data = NULL;
608 node->current_data = malloc(current_size * sizeof(GLfloat));
609 if (node->current_data) {
610 const char *buffer = (const char *)save->buffer_map;
611 unsigned attr_offset = save->attrsz[0] * sizeof(GLfloat);
612 unsigned vertex_offset = 0;
614 if (node->vertex_count)
615 vertex_offset = (node->vertex_count - 1) * stride;
617 memcpy(node->current_data, buffer + vertex_offset + attr_offset,
618 current_size * sizeof(GLfloat));
620 _mesa_error(ctx, GL_OUT_OF_MEMORY, "Current value allocation");
625 assert(save->attrsz[VBO_ATTRIB_POS] != 0 || node->vertex_count == 0);
627 if (save->dangling_attr_ref)
628 ctx->ListState.CurrentList->Flags |= DLIST_DANGLING_REFS;
630 save->vertex_store->used += save->vertex_size * node->vertex_count;
631 save->prim_store->used += node->prim_count;
633 /* Copy duplicated vertices
635 save->copied.nr = copy_vertices(ctx, node, save->buffer_map);
637 if (node->prims[node->prim_count - 1].mode == GL_LINE_LOOP) {
638 convert_line_loop_to_strip(save, node);
641 merge_prims(ctx, node->prims, &node->prim_count);
643 /* Correct the primitive starts, we can only do this here as copy_vertices
644 * and convert_line_loop_to_strip above consume the uncorrected starts.
645 * On the other hand the _vbo_loopback_vertex_list call below needs the
646 * primitves to be corrected already.
648 for (unsigned i = 0; i < node->prim_count; i++) {
649 node->prims[i].start += start_offset;
652 /* Create an index buffer. */
653 node->min_index = node->max_index = 0;
654 if (save->vert_count && node->prim_count) {
655 /* We won't modify node->prims, so use a const alias to avoid unintended
657 const struct _mesa_prim *original_prims = node->prims;
659 int end = original_prims[node->prim_count - 1].start +
660 original_prims[node->prim_count - 1].count;
661 int total_vert_count = end - original_prims[0].start;
663 node->min_index = node->prims[0].start;
664 node->max_index = end - 1;
666 /* Estimate for the worst case: all prims are line strips (the +1 is because
667 * wrap_buffers may call use but the last primitive may not be complete) */
668 int max_indices_count = MAX2(total_vert_count * 2 - (node->prim_count * 2) + 1,
671 int indices_offset = 0;
672 int available = save->previous_ib ? (save->previous_ib->Size / 4 - save->ib_first_free_index) : 0;
673 if (available >= max_indices_count) {
674 indices_offset = save->ib_first_free_index;
676 int size = max_indices_count * sizeof(uint32_t);
677 uint32_t* indices = (uint32_t*) malloc(size);
678 struct _mesa_prim *merged_prims = NULL;
682 int last_valid_prim = -1;
683 /* Construct indices array. */
684 for (unsigned i = 0; i < node->prim_count; i++) {
685 assert(original_prims[i].basevertex == 0);
686 GLubyte mode = original_prims[i].mode;
688 int vertex_count = original_prims[i].count;
693 /* Line strips may get converted to lines */
694 if (mode == GL_LINE_STRIP)
697 /* If 2 consecutive prims use the same mode => merge them. */
698 bool merge_prims = last_valid_prim >= 0 &&
699 mode == merged_prims[last_valid_prim].mode &&
700 mode != GL_LINE_LOOP && mode != GL_TRIANGLE_FAN &&
701 mode != GL_QUAD_STRIP && mode != GL_POLYGON &&
704 /* To be able to merge consecutive triangle strips we need to insert
705 * a degenerate triangle.
708 mode == GL_TRIANGLE_STRIP) {
709 /* Insert a degenerate triangle */
710 assert(merged_prims[last_valid_prim].mode == GL_TRIANGLE_STRIP);
711 unsigned tri_count = merged_prims[last_valid_prim].count - 2;
713 indices[idx] = indices[idx - 1];
714 indices[idx + 1] = original_prims[i].start;
716 merged_prims[last_valid_prim].count += 2;
719 /* Add another index to preserve winding order */
720 indices[idx++] = original_prims[i].start;
721 merged_prims[last_valid_prim].count++;
727 /* Convert line strips to lines if it'll allow if the previous
728 * prim mode is GL_LINES (so merge_prims is true) or if the next
729 * primitive mode is GL_LINES or GL_LINE_LOOP.
731 if (original_prims[i].mode == GL_LINE_STRIP &&
733 (i < node->prim_count - 1 &&
734 (original_prims[i + 1].mode == GL_LINE_STRIP ||
735 original_prims[i + 1].mode == GL_LINES)))) {
736 for (unsigned j = 0; j < vertex_count; j++) {
737 indices[idx++] = original_prims[i].start + j;
738 /* Repeat all but the first/last indices. */
739 if (j && j != vertex_count - 1) {
740 indices[idx++] = original_prims[i].start + j;
744 /* We didn't convert to LINES, so restore the original mode */
745 mode = original_prims[i].mode;
747 for (unsigned j = 0; j < vertex_count; j++) {
748 indices[idx++] = original_prims[i].start + j;
753 /* Update vertex count. */
754 merged_prims[last_valid_prim].count += idx - start;
756 /* Keep this primitive */
757 last_valid_prim += 1;
758 assert(last_valid_prim <= i);
759 merged_prims = realloc(merged_prims, (1 + last_valid_prim) * sizeof(struct _mesa_prim));
760 merged_prims[last_valid_prim] = original_prims[i];
761 merged_prims[last_valid_prim].start = indices_offset + start;
762 merged_prims[last_valid_prim].count = idx - start;
764 merged_prims[last_valid_prim].mode = mode;
767 assert(idx > 0 && idx <= max_indices_count);
769 unsigned merged_prim_count = last_valid_prim + 1;
770 node->merged.ib.ptr = NULL;
771 node->merged.ib.count = idx;
772 node->merged.ib.index_size_shift = (GL_UNSIGNED_INT - GL_UNSIGNED_BYTE) >> 1;
774 if (!indices_offset) {
775 /* Allocate a new index buffer */
776 _mesa_reference_buffer_object(ctx, &save->previous_ib, NULL);
777 save->previous_ib = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID + 1);
778 bool success = ctx->Driver.BufferData(ctx,
779 GL_ELEMENT_ARRAY_BUFFER_ARB,
780 MAX2(VBO_SAVE_INDEX_SIZE, idx) * sizeof(uint32_t),
782 GL_STATIC_DRAW_ARB, GL_MAP_WRITE_BIT,
785 _mesa_reference_buffer_object(ctx, &save->previous_ib, NULL);
786 _mesa_error(ctx, GL_OUT_OF_MEMORY, "IB allocation");
790 _mesa_reference_buffer_object(ctx, &node->merged.ib.obj, save->previous_ib);
792 if (node->merged.ib.obj) {
793 ctx->Driver.BufferSubData(ctx,
794 indices_offset * sizeof(uint32_t),
795 idx * sizeof(uint32_t),
797 node->merged.ib.obj);
798 save->ib_first_free_index = indices_offset + idx;
800 node->vertex_count = 0;
801 node->prim_count = 0;
804 /* Prepare for DrawGallium */
805 memset(&node->merged.info, 0, sizeof(struct pipe_draw_info));
806 /* The other info fields will be updated in vbo_save_playback_vertex_list */
807 node->merged.info.index_size = 4;
808 node->merged.info.instance_count = 1;
809 node->merged.info.index.gl_bo = node->merged.ib.obj;
810 node->merged.start_count = malloc(merged_prim_count * sizeof(struct pipe_draw_start_count_bias));
811 if (merged_prim_count == 1) {
812 node->merged.info.mode = merged_prims[0].mode;
813 node->merged.mode = NULL;
815 node->merged.mode = malloc(merged_prim_count * sizeof(unsigned char));
818 for (unsigned i = 0; i < merged_prim_count; i++) {
819 node->merged.start_count[i].start = merged_prims[i].start;
820 node->merged.start_count[i].count = merged_prims[i].count;
821 node->merged.start_count[i].index_bias = 0;
822 if (merged_prim_count > 1)
823 node->merged.mode[i] = merged_prims[i].mode;
825 node->merged.num_draws = merged_prim_count;
826 if (node->merged.num_draws > 1) {
827 bool same_mode = true;
828 for (unsigned i = 1; i < node->merged.num_draws && same_mode; i++) {
829 same_mode = node->merged.mode[i] == node->merged.mode[0];
832 /* All primitives use the same mode, so we can simplify a bit */
833 node->merged.info.mode = node->merged.mode[0];
834 free(node->merged.mode);
835 node->merged.mode = NULL;
843 /* Deal with GL_COMPILE_AND_EXECUTE:
845 if (ctx->ExecuteFlag) {
846 struct _glapi_table *dispatch = GET_DISPATCH();
848 _glapi_set_dispatch(ctx->Exec);
850 /* Note that the range of referenced vertices must be mapped already */
851 _vbo_loopback_vertex_list(ctx, node);
853 _glapi_set_dispatch(dispatch);
856 /* Decide whether the storage structs are full, or can be used for
857 * the next vertex lists as well.
859 if (save->vertex_store->used >
860 save->vertex_store->bufferobj->Size / sizeof(float) - 16 * (save->vertex_size + 4)) {
861 realloc_storage(ctx, -1, 0);
864 /* update buffer_ptr for next vertex */
865 save->buffer_ptr = save->vertex_store->buffer_map
866 + save->vertex_store->used;
869 if (save->prim_store->used > save->prim_store->size - 6) {
870 realloc_storage(ctx, 0, -1);
873 /* Reset our structures for the next run of vertices:
880 * This is called when we fill a vertex buffer before we hit a glEnd().
882 * TODO -- If no new vertices have been stored, don't bother saving it.
885 wrap_buffers(struct gl_context *ctx)
887 struct vbo_save_context *save = &vbo_context(ctx)->save;
888 GLint i = save->prim_count - 1;
891 assert(i < (GLint) save->prim_max);
894 /* Close off in-progress primitive.
896 save->prims[i].count = (save->vert_count - save->prims[i].start);
897 mode = save->prims[i].mode;
899 /* store the copied vertices, and allocate a new list.
901 compile_vertex_list(ctx);
903 /* Restart interrupted primitive
905 save->prims[0].mode = mode;
906 save->prims[0].begin = 0;
907 save->prims[0].end = 0;
908 save->prims[0].start = 0;
909 save->prims[0].count = 0;
910 save->prim_count = 1;
915 * Called only when buffers are wrapped as the result of filling the
916 * vertex_store struct.
919 wrap_filled_vertex(struct gl_context *ctx)
921 struct vbo_save_context *save = &vbo_context(ctx)->save;
922 unsigned numComponents;
924 /* Emit a glEnd to close off the last vertex list.
928 /* Copy stored stored vertices to start of new list.
930 assert(save->max_vert - save->vert_count > save->copied.nr);
932 numComponents = save->copied.nr * save->vertex_size;
933 memcpy(save->buffer_ptr,
935 numComponents * sizeof(fi_type));
936 save->buffer_ptr += numComponents;
937 save->vert_count += save->copied.nr;
942 copy_to_current(struct gl_context *ctx)
944 struct vbo_save_context *save = &vbo_context(ctx)->save;
945 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
948 const int i = u_bit_scan64(&enabled);
949 assert(save->attrsz[i]);
951 if (save->attrtype[i] == GL_DOUBLE ||
952 save->attrtype[i] == GL_UNSIGNED_INT64_ARB)
953 memcpy(save->current[i], save->attrptr[i], save->attrsz[i] * sizeof(GLfloat));
955 COPY_CLEAN_4V_TYPE_AS_UNION(save->current[i], save->attrsz[i],
956 save->attrptr[i], save->attrtype[i]);
962 copy_from_current(struct gl_context *ctx)
964 struct vbo_save_context *save = &vbo_context(ctx)->save;
965 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
968 const int i = u_bit_scan64(&enabled);
970 switch (save->attrsz[i]) {
972 save->attrptr[i][3] = save->current[i][3];
975 save->attrptr[i][2] = save->current[i][2];
978 save->attrptr[i][1] = save->current[i][1];
981 save->attrptr[i][0] = save->current[i][0];
984 unreachable("Unexpected vertex attribute size");
991 * Called when we increase the size of a vertex attribute. For example,
992 * if we've seen one or more glTexCoord2f() calls and now we get a
993 * glTexCoord3f() call.
994 * Flush existing data, set new attrib size, replay copied vertices.
997 upgrade_vertex(struct gl_context *ctx, GLuint attr, GLuint newsz)
999 struct vbo_save_context *save = &vbo_context(ctx)->save;
1004 /* Store the current run of vertices, and emit a GL_END. Emit a
1005 * BEGIN in the new buffer.
1007 if (save->vert_count)
1010 assert(save->copied.nr == 0);
1012 /* Do a COPY_TO_CURRENT to ensure back-copying works for the case
1013 * when the attribute already exists in the vertex and is having
1014 * its size increased.
1016 copy_to_current(ctx);
1020 oldsz = save->attrsz[attr];
1021 save->attrsz[attr] = newsz;
1022 save->enabled |= BITFIELD64_BIT(attr);
1024 save->vertex_size += newsz - oldsz;
1025 save->max_vert = ((save->vertex_store->bufferobj->Size / sizeof(float) -
1026 save->vertex_store->used) /
1028 save->vert_count = 0;
1030 /* Recalculate all the attrptr[] values:
1033 for (i = 0; i < VBO_ATTRIB_MAX; i++) {
1034 if (save->attrsz[i]) {
1035 save->attrptr[i] = tmp;
1036 tmp += save->attrsz[i];
1039 save->attrptr[i] = NULL; /* will not be dereferenced. */
1043 /* Copy from current to repopulate the vertex with correct values.
1045 copy_from_current(ctx);
1047 /* Replay stored vertices to translate them to new format here.
1049 * If there are copied vertices and the new (upgraded) attribute
1050 * has not been defined before, this list is somewhat degenerate,
1051 * and will need fixup at runtime.
1053 if (save->copied.nr) {
1054 const fi_type *data = save->copied.buffer;
1055 fi_type *dest = save->buffer_map;
1057 /* Need to note this and fix up at runtime (or loopback):
1059 if (attr != VBO_ATTRIB_POS && save->currentsz[attr][0] == 0) {
1061 save->dangling_attr_ref = GL_TRUE;
1064 for (i = 0; i < save->copied.nr; i++) {
1065 GLbitfield64 enabled = save->enabled;
1067 const int j = u_bit_scan64(&enabled);
1068 assert(save->attrsz[j]);
1071 COPY_CLEAN_4V_TYPE_AS_UNION(dest, oldsz, data,
1077 COPY_SZ_4V(dest, newsz, save->current[attr]);
1082 GLint sz = save->attrsz[j];
1083 COPY_SZ_4V(dest, sz, data);
1090 save->buffer_ptr = dest;
1091 save->vert_count += save->copied.nr;
1097 * This is called when the size of a vertex attribute changes.
1098 * For example, after seeing one or more glTexCoord2f() calls we
1099 * get a glTexCoord4f() or glTexCoord1f() call.
1102 fixup_vertex(struct gl_context *ctx, GLuint attr,
1103 GLuint sz, GLenum newType)
1105 struct vbo_save_context *save = &vbo_context(ctx)->save;
1107 if (sz > save->attrsz[attr] ||
1108 newType != save->attrtype[attr]) {
1109 /* New size is larger. Need to flush existing vertices and get
1110 * an enlarged vertex format.
1112 upgrade_vertex(ctx, attr, sz);
1114 else if (sz < save->active_sz[attr]) {
1116 const fi_type *id = vbo_get_default_vals_as_union(save->attrtype[attr]);
1118 /* New size is equal or smaller - just need to fill in some
1121 for (i = sz; i <= save->attrsz[attr]; i++)
1122 save->attrptr[attr][i - 1] = id[i - 1];
1125 save->active_sz[attr] = sz;
1130 * Reset the current size of all vertex attributes to the default
1131 * value of 0. This signals that we haven't yet seen any per-vertex
1132 * commands such as glNormal3f() or glTexCoord2f().
1135 reset_vertex(struct gl_context *ctx)
1137 struct vbo_save_context *save = &vbo_context(ctx)->save;
1139 while (save->enabled) {
1140 const int i = u_bit_scan64(&save->enabled);
1141 assert(save->attrsz[i]);
1142 save->attrsz[i] = 0;
1143 save->active_sz[i] = 0;
1146 save->vertex_size = 0;
1151 * If index=0, does glVertexAttrib*() alias glVertex() to emit a vertex?
1152 * It depends on a few things, including whether we're inside or outside
1156 is_vertex_position(const struct gl_context *ctx, GLuint index)
1158 return (index == 0 &&
1159 _mesa_attr_zero_aliases_vertex(ctx) &&
1160 _mesa_inside_dlist_begin_end(ctx));
1165 #define ERROR(err) _mesa_compile_error(ctx, err, __func__);
1168 /* Only one size for each attribute may be active at once. Eg. if
1169 * Color3f is installed/active, then Color4f may not be, even if the
1170 * vertex actually contains 4 color coordinates. This is because the
1171 * 3f version won't otherwise set color[3] to 1.0 -- this is the job
1172 * of the chooser function when switching between Color4f and Color3f.
1174 #define ATTR_UNION(A, N, T, C, V0, V1, V2, V3) \
1176 struct vbo_save_context *save = &vbo_context(ctx)->save; \
1177 int sz = (sizeof(C) / sizeof(GLfloat)); \
1179 if (save->active_sz[A] != N) \
1180 fixup_vertex(ctx, A, N * sz, T); \
1183 C *dest = (C *)save->attrptr[A]; \
1184 if (N>0) dest[0] = V0; \
1185 if (N>1) dest[1] = V1; \
1186 if (N>2) dest[2] = V2; \
1187 if (N>3) dest[3] = V3; \
1188 save->attrtype[A] = T; \
1194 for (i = 0; i < save->vertex_size; i++) \
1195 save->buffer_ptr[i] = save->vertex[i]; \
1197 save->buffer_ptr += save->vertex_size; \
1199 if (++save->vert_count >= save->max_vert) \
1200 wrap_filled_vertex(ctx); \
1204 #define TAG(x) _save_##x
1206 #include "vbo_attrib_tmp.h"
1210 #define MAT( ATTR, N, face, params ) \
1212 if (face != GL_BACK) \
1213 MAT_ATTR( ATTR, N, params ); /* front */ \
1214 if (face != GL_FRONT) \
1215 MAT_ATTR( ATTR + 1, N, params ); /* back */ \
1220 * Save a glMaterial call found between glBegin/End.
1221 * glMaterial calls outside Begin/End are handled in dlist.c.
1223 static void GLAPIENTRY
1224 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params)
1226 GET_CURRENT_CONTEXT(ctx);
1228 if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
1229 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(face)");
1235 MAT(VBO_ATTRIB_MAT_FRONT_EMISSION, 4, face, params);
1238 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1241 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1244 MAT(VBO_ATTRIB_MAT_FRONT_SPECULAR, 4, face, params);
1247 if (*params < 0 || *params > ctx->Const.MaxShininess) {
1248 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glMaterial(shininess)");
1251 MAT(VBO_ATTRIB_MAT_FRONT_SHININESS, 1, face, params);
1254 case GL_COLOR_INDEXES:
1255 MAT(VBO_ATTRIB_MAT_FRONT_INDEXES, 3, face, params);
1257 case GL_AMBIENT_AND_DIFFUSE:
1258 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1259 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1262 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(pname)");
1268 /* Cope with EvalCoord/CallList called within a begin/end object:
1269 * -- Flush current buffer
1270 * -- Fallback to opcodes for the rest of the begin/end object.
1273 dlist_fallback(struct gl_context *ctx)
1275 struct vbo_save_context *save = &vbo_context(ctx)->save;
1277 if (save->vert_count || save->prim_count) {
1278 if (save->prim_count > 0) {
1279 /* Close off in-progress primitive. */
1280 GLint i = save->prim_count - 1;
1281 save->prims[i].count = save->vert_count - save->prims[i].start;
1284 /* Need to replay this display list with loopback,
1285 * unfortunately, otherwise this primitive won't be handled
1288 save->dangling_attr_ref = GL_TRUE;
1290 compile_vertex_list(ctx);
1293 copy_to_current(ctx);
1295 reset_counters(ctx);
1296 if (save->out_of_memory) {
1297 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1300 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1302 ctx->Driver.SaveNeedFlush = GL_FALSE;
1306 static void GLAPIENTRY
1307 _save_EvalCoord1f(GLfloat u)
1309 GET_CURRENT_CONTEXT(ctx);
1310 dlist_fallback(ctx);
1311 CALL_EvalCoord1f(ctx->Save, (u));
1314 static void GLAPIENTRY
1315 _save_EvalCoord1fv(const GLfloat * v)
1317 GET_CURRENT_CONTEXT(ctx);
1318 dlist_fallback(ctx);
1319 CALL_EvalCoord1fv(ctx->Save, (v));
1322 static void GLAPIENTRY
1323 _save_EvalCoord2f(GLfloat u, GLfloat v)
1325 GET_CURRENT_CONTEXT(ctx);
1326 dlist_fallback(ctx);
1327 CALL_EvalCoord2f(ctx->Save, (u, v));
1330 static void GLAPIENTRY
1331 _save_EvalCoord2fv(const GLfloat * v)
1333 GET_CURRENT_CONTEXT(ctx);
1334 dlist_fallback(ctx);
1335 CALL_EvalCoord2fv(ctx->Save, (v));
1338 static void GLAPIENTRY
1339 _save_EvalPoint1(GLint i)
1341 GET_CURRENT_CONTEXT(ctx);
1342 dlist_fallback(ctx);
1343 CALL_EvalPoint1(ctx->Save, (i));
1346 static void GLAPIENTRY
1347 _save_EvalPoint2(GLint i, GLint j)
1349 GET_CURRENT_CONTEXT(ctx);
1350 dlist_fallback(ctx);
1351 CALL_EvalPoint2(ctx->Save, (i, j));
1354 static void GLAPIENTRY
1355 _save_CallList(GLuint l)
1357 GET_CURRENT_CONTEXT(ctx);
1358 dlist_fallback(ctx);
1359 CALL_CallList(ctx->Save, (l));
1362 static void GLAPIENTRY
1363 _save_CallLists(GLsizei n, GLenum type, const GLvoid * v)
1365 GET_CURRENT_CONTEXT(ctx);
1366 dlist_fallback(ctx);
1367 CALL_CallLists(ctx->Save, (n, type, v));
1373 * Called when a glBegin is getting compiled into a display list.
1374 * Updating of ctx->Driver.CurrentSavePrimitive is already taken care of.
1377 vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode,
1378 bool no_current_update)
1380 struct vbo_save_context *save = &vbo_context(ctx)->save;
1381 const GLuint i = save->prim_count++;
1383 ctx->Driver.CurrentSavePrimitive = mode;
1385 assert(i < save->prim_max);
1386 save->prims[i].mode = mode & VBO_SAVE_PRIM_MODE_MASK;
1387 save->prims[i].begin = 1;
1388 save->prims[i].end = 0;
1389 save->prims[i].start = save->vert_count;
1390 save->prims[i].count = 0;
1392 save->no_current_update = no_current_update;
1394 if (save->out_of_memory) {
1395 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1398 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
1401 /* We need to call vbo_save_SaveFlushVertices() if there's state change */
1402 ctx->Driver.SaveNeedFlush = GL_TRUE;
1406 static void GLAPIENTRY
1409 GET_CURRENT_CONTEXT(ctx);
1410 struct vbo_save_context *save = &vbo_context(ctx)->save;
1411 const GLint i = save->prim_count - 1;
1413 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1414 save->prims[i].end = 1;
1415 save->prims[i].count = (save->vert_count - save->prims[i].start);
1417 if (i == (GLint) save->prim_max - 1) {
1418 compile_vertex_list(ctx);
1419 assert(save->copied.nr == 0);
1422 /* Swap out this vertex format while outside begin/end. Any color,
1423 * etc. received between here and the next begin will be compiled
1426 if (save->out_of_memory) {
1427 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1430 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1435 static void GLAPIENTRY
1436 _save_Begin(GLenum mode)
1438 GET_CURRENT_CONTEXT(ctx);
1440 _mesa_compile_error(ctx, GL_INVALID_OPERATION, "Recursive glBegin");
1444 static void GLAPIENTRY
1445 _save_PrimitiveRestartNV(void)
1447 GET_CURRENT_CONTEXT(ctx);
1448 struct vbo_save_context *save = &vbo_context(ctx)->save;
1450 if (save->prim_count == 0) {
1451 /* We're not inside a glBegin/End pair, so calling glPrimitiverRestartNV
1454 _mesa_compile_error(ctx, GL_INVALID_OPERATION,
1455 "glPrimitiveRestartNV called outside glBegin/End");
1457 /* get current primitive mode */
1458 GLenum curPrim = save->prims[save->prim_count - 1].mode;
1459 bool no_current_update = save->no_current_update;
1461 /* restart primitive */
1462 CALL_End(ctx->CurrentServerDispatch, ());
1463 vbo_save_NotifyBegin(ctx, curPrim, no_current_update);
1468 /* Unlike the functions above, these are to be hooked into the vtxfmt
1469 * maintained in ctx->ListState, active when the list is known or
1470 * suspected to be outside any begin/end primitive.
1471 * Note: OBE = Outside Begin/End
1473 static void GLAPIENTRY
1474 _save_OBE_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
1476 GET_CURRENT_CONTEXT(ctx);
1477 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1479 vbo_save_NotifyBegin(ctx, GL_QUADS, false);
1480 CALL_Vertex2f(dispatch, (x1, y1));
1481 CALL_Vertex2f(dispatch, (x2, y1));
1482 CALL_Vertex2f(dispatch, (x2, y2));
1483 CALL_Vertex2f(dispatch, (x1, y2));
1484 CALL_End(dispatch, ());
1488 static void GLAPIENTRY
1489 _save_OBE_Rectd(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2)
1491 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1494 static void GLAPIENTRY
1495 _save_OBE_Rectdv(const GLdouble *v1, const GLdouble *v2)
1497 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1500 static void GLAPIENTRY
1501 _save_OBE_Rectfv(const GLfloat *v1, const GLfloat *v2)
1503 _save_OBE_Rectf(v1[0], v1[1], v2[0], v2[1]);
1506 static void GLAPIENTRY
1507 _save_OBE_Recti(GLint x1, GLint y1, GLint x2, GLint y2)
1509 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1512 static void GLAPIENTRY
1513 _save_OBE_Rectiv(const GLint *v1, const GLint *v2)
1515 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1518 static void GLAPIENTRY
1519 _save_OBE_Rects(GLshort x1, GLshort y1, GLshort x2, GLshort y2)
1521 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1524 static void GLAPIENTRY
1525 _save_OBE_Rectsv(const GLshort *v1, const GLshort *v2)
1527 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1531 _ensure_draws_fits_in_storage(struct gl_context *ctx, int primcount, int vertcount)
1533 struct vbo_save_context *save = &vbo_context(ctx)->save;
1535 bool realloc_prim = save->prim_count + primcount > save->prim_max;
1536 bool realloc_vert = save->vertex_size && (save->vert_count + vertcount >= save->max_vert);
1538 if (realloc_prim || realloc_vert) {
1539 if (save->vert_count || save->prim_count)
1540 compile_vertex_list(ctx);
1541 realloc_storage(ctx, realloc_prim ? primcount : -1, realloc_vert ? vertcount : -1);
1542 reset_counters(ctx);
1543 assert(save->prim_max);
1548 static void GLAPIENTRY
1549 _save_OBE_DrawArrays(GLenum mode, GLint start, GLsizei count)
1551 GET_CURRENT_CONTEXT(ctx);
1552 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1553 struct vbo_save_context *save = &vbo_context(ctx)->save;
1556 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1557 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)");
1561 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawArrays(count<0)");
1565 if (save->out_of_memory)
1568 _ensure_draws_fits_in_storage(ctx, 1, count);
1570 /* Make sure to process any VBO binding changes */
1571 _mesa_update_state(ctx);
1573 _mesa_vao_map_arrays(ctx, vao, GL_MAP_READ_BIT);
1575 vbo_save_NotifyBegin(ctx, mode, true);
1577 for (i = 0; i < count; i++)
1578 _mesa_array_element(ctx, start + i);
1579 CALL_End(ctx->CurrentServerDispatch, ());
1581 _mesa_vao_unmap_arrays(ctx, vao);
1585 static void GLAPIENTRY
1586 _save_OBE_MultiDrawArrays(GLenum mode, const GLint *first,
1587 const GLsizei *count, GLsizei primcount)
1589 GET_CURRENT_CONTEXT(ctx);
1592 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1593 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMultiDrawArrays(mode)");
1597 if (primcount < 0) {
1598 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1599 "glMultiDrawArrays(primcount<0)");
1603 unsigned vertcount = 0;
1604 for (i = 0; i < primcount; i++) {
1606 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1607 "glMultiDrawArrays(count[i]<0)");
1610 vertcount += count[i];
1613 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1615 for (i = 0; i < primcount; i++) {
1617 _save_OBE_DrawArrays(mode, first[i], count[i]);
1624 array_element(struct gl_context *ctx,
1625 GLint basevertex, GLuint elt, unsigned index_size_shift)
1627 /* Section 10.3.5 Primitive Restart:
1629 * When one of the *BaseVertex drawing commands specified in section 10.5
1630 * is used, the primitive restart comparison occurs before the basevertex
1631 * offset is added to the array index.
1633 /* If PrimitiveRestart is enabled and the index is the RestartIndex
1634 * then we call PrimitiveRestartNV and return.
1636 if (ctx->Array._PrimitiveRestart[index_size_shift] &&
1637 elt == ctx->Array._RestartIndex[index_size_shift]) {
1638 CALL_PrimitiveRestartNV(ctx->CurrentServerDispatch, ());
1642 _mesa_array_element(ctx, basevertex + elt);
1646 /* Could do better by copying the arrays and element list intact and
1647 * then emitting an indexed prim at runtime.
1649 static void GLAPIENTRY
1650 _save_OBE_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
1651 const GLvoid * indices, GLint basevertex)
1653 GET_CURRENT_CONTEXT(ctx);
1654 struct vbo_save_context *save = &vbo_context(ctx)->save;
1655 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1656 struct gl_buffer_object *indexbuf = vao->IndexBufferObj;
1659 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1660 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawElements(mode)");
1664 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1667 if (type != GL_UNSIGNED_BYTE &&
1668 type != GL_UNSIGNED_SHORT &&
1669 type != GL_UNSIGNED_INT) {
1670 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1674 if (save->out_of_memory)
1677 _ensure_draws_fits_in_storage(ctx, 1, count);
1679 /* Make sure to process any VBO binding changes */
1680 _mesa_update_state(ctx);
1682 _mesa_vao_map(ctx, vao, GL_MAP_READ_BIT);
1686 ADD_POINTERS(indexbuf->Mappings[MAP_INTERNAL].Pointer, indices);
1688 vbo_save_NotifyBegin(ctx, mode, true);
1691 case GL_UNSIGNED_BYTE:
1692 for (i = 0; i < count; i++)
1693 array_element(ctx, basevertex, ((GLubyte *) indices)[i], 0);
1695 case GL_UNSIGNED_SHORT:
1696 for (i = 0; i < count; i++)
1697 array_element(ctx, basevertex, ((GLushort *) indices)[i], 1);
1699 case GL_UNSIGNED_INT:
1700 for (i = 0; i < count; i++)
1701 array_element(ctx, basevertex, ((GLuint *) indices)[i], 2);
1704 _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)");
1708 CALL_End(ctx->CurrentServerDispatch, ());
1710 _mesa_vao_unmap(ctx, vao);
1713 static void GLAPIENTRY
1714 _save_OBE_DrawElements(GLenum mode, GLsizei count, GLenum type,
1715 const GLvoid * indices)
1717 _save_OBE_DrawElementsBaseVertex(mode, count, type, indices, 0);
1721 static void GLAPIENTRY
1722 _save_OBE_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
1723 GLsizei count, GLenum type,
1724 const GLvoid * indices)
1726 GET_CURRENT_CONTEXT(ctx);
1727 struct vbo_save_context *save = &vbo_context(ctx)->save;
1729 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1730 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)");
1734 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1735 "glDrawRangeElements(count<0)");
1738 if (type != GL_UNSIGNED_BYTE &&
1739 type != GL_UNSIGNED_SHORT &&
1740 type != GL_UNSIGNED_INT) {
1741 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(type)");
1745 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1746 "glDrawRangeElements(end < start)");
1750 if (save->out_of_memory)
1753 _save_OBE_DrawElements(mode, count, type, indices);
1757 static void GLAPIENTRY
1758 _save_OBE_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type,
1759 const GLvoid * const *indices, GLsizei primcount)
1761 GET_CURRENT_CONTEXT(ctx);
1762 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1766 for (i = 0; i < primcount; i++) {
1767 vertcount += count[i];
1769 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1771 for (i = 0; i < primcount; i++) {
1773 CALL_DrawElements(dispatch, (mode, count[i], type, indices[i]));
1779 static void GLAPIENTRY
1780 _save_OBE_MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count,
1782 const GLvoid * const *indices,
1784 const GLint *basevertex)
1786 GET_CURRENT_CONTEXT(ctx);
1787 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1791 for (i = 0; i < primcount; i++) {
1792 vertcount += count[i];
1794 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1796 for (i = 0; i < primcount; i++) {
1798 CALL_DrawElementsBaseVertex(dispatch, (mode, count[i], type,
1807 vtxfmt_init(struct gl_context *ctx)
1809 struct vbo_save_context *save = &vbo_context(ctx)->save;
1810 GLvertexformat *vfmt = &save->vtxfmt;
1812 #define NAME_AE(x) _ae_##x
1813 #define NAME_CALLLIST(x) _save_##x
1814 #define NAME(x) _save_##x
1815 #define NAME_ES(x) _save_##x##ARB
1817 #include "vbo_init_tmp.h"
1822 * Initialize the dispatch table with the VBO functions for display
1826 vbo_initialize_save_dispatch(const struct gl_context *ctx,
1827 struct _glapi_table *exec)
1829 SET_DrawArrays(exec, _save_OBE_DrawArrays);
1830 SET_MultiDrawArrays(exec, _save_OBE_MultiDrawArrays);
1831 SET_DrawElements(exec, _save_OBE_DrawElements);
1832 SET_DrawElementsBaseVertex(exec, _save_OBE_DrawElementsBaseVertex);
1833 SET_DrawRangeElements(exec, _save_OBE_DrawRangeElements);
1834 SET_MultiDrawElementsEXT(exec, _save_OBE_MultiDrawElements);
1835 SET_MultiDrawElementsBaseVertex(exec, _save_OBE_MultiDrawElementsBaseVertex);
1836 SET_Rectf(exec, _save_OBE_Rectf);
1837 SET_Rectd(exec, _save_OBE_Rectd);
1838 SET_Rectdv(exec, _save_OBE_Rectdv);
1839 SET_Rectfv(exec, _save_OBE_Rectfv);
1840 SET_Recti(exec, _save_OBE_Recti);
1841 SET_Rectiv(exec, _save_OBE_Rectiv);
1842 SET_Rects(exec, _save_OBE_Rects);
1843 SET_Rectsv(exec, _save_OBE_Rectsv);
1845 /* Note: other glDraw functins aren't compiled into display lists */
1851 vbo_save_SaveFlushVertices(struct gl_context *ctx)
1853 struct vbo_save_context *save = &vbo_context(ctx)->save;
1855 /* Noop when we are actually active:
1857 if (ctx->Driver.CurrentSavePrimitive <= PRIM_MAX)
1860 if (save->vert_count || save->prim_count)
1861 compile_vertex_list(ctx);
1863 copy_to_current(ctx);
1865 reset_counters(ctx);
1866 ctx->Driver.SaveNeedFlush = GL_FALSE;
1871 * Called from glNewList when we're starting to compile a display list.
1874 vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode)
1876 struct vbo_save_context *save = &vbo_context(ctx)->save;
1881 if (!save->prim_store)
1882 save->prim_store = alloc_prim_store(0);
1884 if (!save->vertex_store)
1885 save->vertex_store = alloc_vertex_store(ctx, 0);
1887 save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
1890 reset_counters(ctx);
1891 ctx->Driver.SaveNeedFlush = GL_FALSE;
1896 * Called from glEndList when we're finished compiling a display list.
1899 vbo_save_EndList(struct gl_context *ctx)
1901 struct vbo_save_context *save = &vbo_context(ctx)->save;
1903 /* EndList called inside a (saved) Begin/End pair?
1905 if (_mesa_inside_dlist_begin_end(ctx)) {
1906 if (save->prim_count > 0) {
1907 GLint i = save->prim_count - 1;
1908 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1909 save->prims[i].end = 0;
1910 save->prims[i].count = save->vert_count - save->prims[i].start;
1913 /* Make sure this vertex list gets replayed by the "loopback"
1916 save->dangling_attr_ref = GL_TRUE;
1917 vbo_save_SaveFlushVertices(ctx);
1919 /* Swap out this vertex format while outside begin/end. Any color,
1920 * etc. received between here and the next begin will be compiled
1923 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1926 vbo_save_unmap_vertex_store(ctx, save->vertex_store);
1928 assert(save->vertex_size == 0);
1933 * Called from the display list code when we're about to execute a
1937 vbo_save_BeginCallList(struct gl_context *ctx, struct gl_display_list *dlist)
1939 struct vbo_save_context *save = &vbo_context(ctx)->save;
1940 save->replay_flags |= dlist->Flags;
1945 * Called from the display list code when we're finished executing a
1949 vbo_save_EndCallList(struct gl_context *ctx)
1951 struct vbo_save_context *save = &vbo_context(ctx)->save;
1953 if (ctx->ListState.CallDepth == 1)
1954 save->replay_flags = 0;
1959 * Called during context creation/init.
1962 current_init(struct gl_context *ctx)
1964 struct vbo_save_context *save = &vbo_context(ctx)->save;
1967 for (i = VBO_ATTRIB_POS; i <= VBO_ATTRIB_GENERIC15; i++) {
1968 const GLuint j = i - VBO_ATTRIB_POS;
1969 assert(j < VERT_ATTRIB_MAX);
1970 save->currentsz[i] = &ctx->ListState.ActiveAttribSize[j];
1971 save->current[i] = (fi_type *) ctx->ListState.CurrentAttrib[j];
1974 for (i = VBO_ATTRIB_FIRST_MATERIAL; i <= VBO_ATTRIB_LAST_MATERIAL; i++) {
1975 const GLuint j = i - VBO_ATTRIB_FIRST_MATERIAL;
1976 assert(j < MAT_ATTRIB_MAX);
1977 save->currentsz[i] = &ctx->ListState.ActiveMaterialSize[j];
1978 save->current[i] = (fi_type *) ctx->ListState.CurrentMaterial[j];
1984 * Initialize the display list compiler. Called during context creation.
1987 vbo_save_api_init(struct vbo_save_context *save)
1989 struct gl_context *ctx = gl_context_from_vbo_save(save);
1993 _mesa_noop_vtxfmt_init(ctx, &save->vtxfmt_noop);