1 /**************************************************************************
3 Copyright 2002-2008 VMware, Inc.
7 Permission is hereby granted, free of charge, to any person obtaining a
8 copy of this software and associated documentation files (the "Software"),
9 to deal in the Software without restriction, including without limitation
10 on the rights to use, copy, modify, merge, publish, distribute, sub
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12 the Software is furnished to do so, subject to the following conditions:
14 The above copyright notice and this permission notice (including the next
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18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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23 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 * Keith Whitwell <keithw@vmware.com>
35 /* Display list compiler attempts to store lists of vertices with the
36 * same vertex layout. Additionally it attempts to minimize the need
37 * for execute-time fixup of these vertex lists, allowing them to be
40 * There are still some circumstances where this can be thwarted, for
41 * example by building a list that consists of one very long primitive
42 * (eg Begin(Triangles), 1000 vertices, End), and calling that list
43 * from inside a different begin/end object (Begin(Lines), CallList,
46 * In that case the code will have to replay the list as individual
47 * commands through the Exec dispatch table, or fix up the copied
48 * vertices at execute-time.
50 * The other case where fixup is required is when a vertex attribute
51 * is introduced in the middle of a primitive. Eg:
53 * TexCoord1f() Vertex2f()
54 * TexCoord1f() Color3f() Vertex2f()
57 * If the current value of Color isn't known at compile-time, this
58 * primitive will require fixup.
61 * The list compiler currently doesn't attempt to compile lists
62 * containing EvalCoord or EvalPoint commands. On encountering one of
63 * these, compilation falls back to opcodes.
65 * This could be improved to fallback only when a mix of EvalCoord and
66 * Vertex commands are issued within a single primitive.
70 #include "main/glheader.h"
71 #include "main/arrayobj.h"
72 #include "main/bufferobj.h"
73 #include "main/context.h"
74 #include "main/dlist.h"
75 #include "main/enums.h"
76 #include "main/eval.h"
77 #include "main/macros.h"
78 #include "main/draw_validate.h"
79 #include "main/api_arrayelt.h"
80 #include "main/vtxfmt.h"
81 #include "main/dispatch.h"
82 #include "main/state.h"
83 #include "main/varray.h"
84 #include "util/bitscan.h"
85 #include "util/u_memory.h"
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 == 0 || save->prim_count == 0)
657 /* We won't modify node->prims, so use a const alias to avoid unintended
659 const struct _mesa_prim *original_prims = node->prims;
661 int end = original_prims[node->prim_count - 1].start +
662 original_prims[node->prim_count - 1].count;
663 int total_vert_count = end - original_prims[0].start;
665 node->min_index = node->prims[0].start;
666 node->max_index = end - 1;
668 /* Estimate for the worst case: all prims are line strips (the +1 is because
669 * wrap_buffers may call use but the last primitive may not be complete) */
670 int max_indices_count = MAX2(total_vert_count * 2 - (node->prim_count * 2) + 1,
673 int indices_offset = 0;
674 int available = save->previous_ib ? (save->previous_ib->Size / 4 - save->ib_first_free_index) : 0;
675 if (available >= max_indices_count) {
676 indices_offset = save->ib_first_free_index;
678 int size = max_indices_count * sizeof(uint32_t);
679 uint32_t* indices = (uint32_t*) malloc(size);
680 struct _mesa_prim *merged_prims = NULL;
684 int last_valid_prim = -1;
685 /* Construct indices array. */
686 for (unsigned i = 0; i < node->prim_count; i++) {
687 assert(original_prims[i].basevertex == 0);
688 GLubyte mode = original_prims[i].mode;
690 int vertex_count = original_prims[i].count;
695 /* Line strips may get converted to lines */
696 if (mode == GL_LINE_STRIP)
699 /* If 2 consecutive prims use the same mode => merge them. */
700 bool merge_prims = last_valid_prim >= 0 &&
701 mode == merged_prims[last_valid_prim].mode &&
702 mode != GL_LINE_LOOP && mode != GL_TRIANGLE_FAN &&
703 mode != GL_QUAD_STRIP && mode != GL_POLYGON &&
706 /* To be able to merge consecutive triangle strips we need to insert
707 * a degenerate triangle.
710 mode == GL_TRIANGLE_STRIP) {
711 /* Insert a degenerate triangle */
712 assert(merged_prims[last_valid_prim].mode == GL_TRIANGLE_STRIP);
713 unsigned tri_count = merged_prims[last_valid_prim].count - 2;
715 indices[idx] = indices[idx - 1];
716 indices[idx + 1] = original_prims[i].start;
718 merged_prims[last_valid_prim].count += 2;
721 /* Add another index to preserve winding order */
722 indices[idx++] = original_prims[i].start;
723 merged_prims[last_valid_prim].count++;
729 /* Convert line strips to lines if it'll allow if the previous
730 * prim mode is GL_LINES (so merge_prims is true) or if the next
731 * primitive mode is GL_LINES or GL_LINE_LOOP.
733 if (original_prims[i].mode == GL_LINE_STRIP &&
735 (i < node->prim_count - 1 &&
736 (original_prims[i + 1].mode == GL_LINE_STRIP ||
737 original_prims[i + 1].mode == GL_LINES)))) {
738 for (unsigned j = 0; j < vertex_count; j++) {
739 indices[idx++] = original_prims[i].start + j;
740 /* Repeat all but the first/last indices. */
741 if (j && j != vertex_count - 1) {
742 indices[idx++] = original_prims[i].start + j;
746 /* We didn't convert to LINES, so restore the original mode */
747 mode = original_prims[i].mode;
749 for (unsigned j = 0; j < vertex_count; j++) {
750 indices[idx++] = original_prims[i].start + j;
755 /* Update vertex count. */
756 merged_prims[last_valid_prim].count += idx - start;
758 /* Keep this primitive */
759 last_valid_prim += 1;
760 assert(last_valid_prim <= i);
761 merged_prims = realloc(merged_prims, (1 + last_valid_prim) * sizeof(struct _mesa_prim));
762 merged_prims[last_valid_prim] = original_prims[i];
763 merged_prims[last_valid_prim].start = indices_offset + start;
764 merged_prims[last_valid_prim].count = idx - start;
766 merged_prims[last_valid_prim].mode = mode;
769 assert(idx > 0 && idx <= max_indices_count);
771 unsigned merged_prim_count = last_valid_prim + 1;
772 node->merged.ib.ptr = NULL;
773 node->merged.ib.count = idx;
774 node->merged.ib.index_size_shift = (GL_UNSIGNED_INT - GL_UNSIGNED_BYTE) >> 1;
776 if (!indices_offset) {
777 /* Allocate a new index buffer */
778 _mesa_reference_buffer_object(ctx, &save->previous_ib, NULL);
779 save->previous_ib = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID + 1);
780 bool success = ctx->Driver.BufferData(ctx,
781 GL_ELEMENT_ARRAY_BUFFER_ARB,
782 MAX2(VBO_SAVE_INDEX_SIZE, idx) * sizeof(uint32_t),
784 GL_STATIC_DRAW_ARB, GL_MAP_WRITE_BIT,
787 _mesa_reference_buffer_object(ctx, &save->previous_ib, NULL);
788 _mesa_error(ctx, GL_OUT_OF_MEMORY, "IB allocation");
792 _mesa_reference_buffer_object(ctx, &node->merged.ib.obj, save->previous_ib);
794 if (node->merged.ib.obj) {
795 ctx->Driver.BufferSubData(ctx,
796 indices_offset * sizeof(uint32_t),
797 idx * sizeof(uint32_t),
799 node->merged.ib.obj);
800 save->ib_first_free_index = indices_offset + idx;
802 node->vertex_count = 0;
803 node->prim_count = 0;
806 /* Prepare for DrawGallium */
807 memset(&node->merged.info, 0, sizeof(struct pipe_draw_info));
808 /* The other info fields will be updated in vbo_save_playback_vertex_list */
809 node->merged.info.index_size = 4;
810 node->merged.info.instance_count = 1;
811 node->merged.info.index.gl_bo = node->merged.ib.obj;
812 if (merged_prim_count == 1) {
813 node->merged.info.mode = merged_prims[0].mode;
814 node->merged.start_count.start = merged_prims[0].start;
815 node->merged.start_count.count = merged_prims[0].count;
816 node->merged.start_count.index_bias = 0;
817 node->merged.mode = NULL;
819 node->merged.mode = malloc(merged_prim_count * sizeof(unsigned char));
820 node->merged.start_counts = malloc(merged_prim_count * sizeof(struct pipe_draw_start_count_bias));
821 for (unsigned i = 0; i < merged_prim_count; i++) {
822 node->merged.start_counts[i].start = merged_prims[i].start;
823 node->merged.start_counts[i].count = merged_prims[i].count;
824 node->merged.start_counts[i].index_bias = 0;
825 node->merged.mode[i] = merged_prims[i].mode;
828 node->merged.num_draws = merged_prim_count;
829 if (node->merged.num_draws > 1) {
830 bool same_mode = true;
831 for (unsigned i = 1; i < node->merged.num_draws && same_mode; i++) {
832 same_mode = node->merged.mode[i] == node->merged.mode[0];
835 /* All primitives use the same mode, so we can simplify a bit */
836 node->merged.info.mode = node->merged.mode[0];
837 free(node->merged.mode);
838 node->merged.mode = NULL;
846 /* Deal with GL_COMPILE_AND_EXECUTE:
848 if (ctx->ExecuteFlag) {
849 struct _glapi_table *dispatch = GET_DISPATCH();
851 _glapi_set_dispatch(ctx->Exec);
853 /* Note that the range of referenced vertices must be mapped already */
854 _vbo_loopback_vertex_list(ctx, node);
856 _glapi_set_dispatch(dispatch);
859 /* Decide whether the storage structs are full, or can be used for
860 * the next vertex lists as well.
862 if (save->vertex_store->used >
863 save->vertex_store->bufferobj->Size / sizeof(float) - 16 * (save->vertex_size + 4)) {
864 realloc_storage(ctx, -1, 0);
867 /* update buffer_ptr for next vertex */
868 save->buffer_ptr = save->vertex_store->buffer_map
869 + save->vertex_store->used;
872 if (save->prim_store->used > save->prim_store->size - 6) {
873 realloc_storage(ctx, 0, -1);
876 /* Reset our structures for the next run of vertices:
883 * This is called when we fill a vertex buffer before we hit a glEnd().
885 * TODO -- If no new vertices have been stored, don't bother saving it.
888 wrap_buffers(struct gl_context *ctx)
890 struct vbo_save_context *save = &vbo_context(ctx)->save;
891 GLint i = save->prim_count - 1;
894 assert(i < (GLint) save->prim_max);
897 /* Close off in-progress primitive.
899 save->prims[i].count = (save->vert_count - save->prims[i].start);
900 mode = save->prims[i].mode;
902 /* store the copied vertices, and allocate a new list.
904 compile_vertex_list(ctx);
906 /* Restart interrupted primitive
908 save->prims[0].mode = mode;
909 save->prims[0].begin = 0;
910 save->prims[0].end = 0;
911 save->prims[0].start = 0;
912 save->prims[0].count = 0;
913 save->prim_count = 1;
918 * Called only when buffers are wrapped as the result of filling the
919 * vertex_store struct.
922 wrap_filled_vertex(struct gl_context *ctx)
924 struct vbo_save_context *save = &vbo_context(ctx)->save;
925 unsigned numComponents;
927 /* Emit a glEnd to close off the last vertex list.
931 /* Copy stored stored vertices to start of new list.
933 assert(save->max_vert - save->vert_count > save->copied.nr);
935 numComponents = save->copied.nr * save->vertex_size;
936 memcpy(save->buffer_ptr,
938 numComponents * sizeof(fi_type));
939 save->buffer_ptr += numComponents;
940 save->vert_count += save->copied.nr;
945 copy_to_current(struct gl_context *ctx)
947 struct vbo_save_context *save = &vbo_context(ctx)->save;
948 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
951 const int i = u_bit_scan64(&enabled);
952 assert(save->attrsz[i]);
954 if (save->attrtype[i] == GL_DOUBLE ||
955 save->attrtype[i] == GL_UNSIGNED_INT64_ARB)
956 memcpy(save->current[i], save->attrptr[i], save->attrsz[i] * sizeof(GLfloat));
958 COPY_CLEAN_4V_TYPE_AS_UNION(save->current[i], save->attrsz[i],
959 save->attrptr[i], save->attrtype[i]);
965 copy_from_current(struct gl_context *ctx)
967 struct vbo_save_context *save = &vbo_context(ctx)->save;
968 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
971 const int i = u_bit_scan64(&enabled);
973 switch (save->attrsz[i]) {
975 save->attrptr[i][3] = save->current[i][3];
978 save->attrptr[i][2] = save->current[i][2];
981 save->attrptr[i][1] = save->current[i][1];
984 save->attrptr[i][0] = save->current[i][0];
987 unreachable("Unexpected vertex attribute size");
994 * Called when we increase the size of a vertex attribute. For example,
995 * if we've seen one or more glTexCoord2f() calls and now we get a
996 * glTexCoord3f() call.
997 * Flush existing data, set new attrib size, replay copied vertices.
1000 upgrade_vertex(struct gl_context *ctx, GLuint attr, GLuint newsz)
1002 struct vbo_save_context *save = &vbo_context(ctx)->save;
1007 /* Store the current run of vertices, and emit a GL_END. Emit a
1008 * BEGIN in the new buffer.
1010 if (save->vert_count)
1013 assert(save->copied.nr == 0);
1015 /* Do a COPY_TO_CURRENT to ensure back-copying works for the case
1016 * when the attribute already exists in the vertex and is having
1017 * its size increased.
1019 copy_to_current(ctx);
1023 oldsz = save->attrsz[attr];
1024 save->attrsz[attr] = newsz;
1025 save->enabled |= BITFIELD64_BIT(attr);
1027 save->vertex_size += newsz - oldsz;
1028 save->max_vert = ((save->vertex_store->bufferobj->Size / sizeof(float) -
1029 save->vertex_store->used) /
1031 save->vert_count = 0;
1033 /* Recalculate all the attrptr[] values:
1036 for (i = 0; i < VBO_ATTRIB_MAX; i++) {
1037 if (save->attrsz[i]) {
1038 save->attrptr[i] = tmp;
1039 tmp += save->attrsz[i];
1042 save->attrptr[i] = NULL; /* will not be dereferenced. */
1046 /* Copy from current to repopulate the vertex with correct values.
1048 copy_from_current(ctx);
1050 /* Replay stored vertices to translate them to new format here.
1052 * If there are copied vertices and the new (upgraded) attribute
1053 * has not been defined before, this list is somewhat degenerate,
1054 * and will need fixup at runtime.
1056 if (save->copied.nr) {
1057 const fi_type *data = save->copied.buffer;
1058 fi_type *dest = save->buffer_map;
1060 /* Need to note this and fix up at runtime (or loopback):
1062 if (attr != VBO_ATTRIB_POS && save->currentsz[attr][0] == 0) {
1064 save->dangling_attr_ref = GL_TRUE;
1067 for (i = 0; i < save->copied.nr; i++) {
1068 GLbitfield64 enabled = save->enabled;
1070 const int j = u_bit_scan64(&enabled);
1071 assert(save->attrsz[j]);
1074 COPY_CLEAN_4V_TYPE_AS_UNION(dest, oldsz, data,
1080 COPY_SZ_4V(dest, newsz, save->current[attr]);
1085 GLint sz = save->attrsz[j];
1086 COPY_SZ_4V(dest, sz, data);
1093 save->buffer_ptr = dest;
1094 save->vert_count += save->copied.nr;
1100 * This is called when the size of a vertex attribute changes.
1101 * For example, after seeing one or more glTexCoord2f() calls we
1102 * get a glTexCoord4f() or glTexCoord1f() call.
1105 fixup_vertex(struct gl_context *ctx, GLuint attr,
1106 GLuint sz, GLenum newType)
1108 struct vbo_save_context *save = &vbo_context(ctx)->save;
1110 if (sz > save->attrsz[attr] ||
1111 newType != save->attrtype[attr]) {
1112 /* New size is larger. Need to flush existing vertices and get
1113 * an enlarged vertex format.
1115 upgrade_vertex(ctx, attr, sz);
1117 else if (sz < save->active_sz[attr]) {
1119 const fi_type *id = vbo_get_default_vals_as_union(save->attrtype[attr]);
1121 /* New size is equal or smaller - just need to fill in some
1124 for (i = sz; i <= save->attrsz[attr]; i++)
1125 save->attrptr[attr][i - 1] = id[i - 1];
1128 save->active_sz[attr] = sz;
1133 * Reset the current size of all vertex attributes to the default
1134 * value of 0. This signals that we haven't yet seen any per-vertex
1135 * commands such as glNormal3f() or glTexCoord2f().
1138 reset_vertex(struct gl_context *ctx)
1140 struct vbo_save_context *save = &vbo_context(ctx)->save;
1142 while (save->enabled) {
1143 const int i = u_bit_scan64(&save->enabled);
1144 assert(save->attrsz[i]);
1145 save->attrsz[i] = 0;
1146 save->active_sz[i] = 0;
1149 save->vertex_size = 0;
1154 * If index=0, does glVertexAttrib*() alias glVertex() to emit a vertex?
1155 * It depends on a few things, including whether we're inside or outside
1159 is_vertex_position(const struct gl_context *ctx, GLuint index)
1161 return (index == 0 &&
1162 _mesa_attr_zero_aliases_vertex(ctx) &&
1163 _mesa_inside_dlist_begin_end(ctx));
1168 #define ERROR(err) _mesa_compile_error(ctx, err, __func__);
1171 /* Only one size for each attribute may be active at once. Eg. if
1172 * Color3f is installed/active, then Color4f may not be, even if the
1173 * vertex actually contains 4 color coordinates. This is because the
1174 * 3f version won't otherwise set color[3] to 1.0 -- this is the job
1175 * of the chooser function when switching between Color4f and Color3f.
1177 #define ATTR_UNION(A, N, T, C, V0, V1, V2, V3) \
1179 struct vbo_save_context *save = &vbo_context(ctx)->save; \
1180 int sz = (sizeof(C) / sizeof(GLfloat)); \
1182 if (save->active_sz[A] != N) \
1183 fixup_vertex(ctx, A, N * sz, T); \
1186 C *dest = (C *)save->attrptr[A]; \
1187 if (N>0) dest[0] = V0; \
1188 if (N>1) dest[1] = V1; \
1189 if (N>2) dest[2] = V2; \
1190 if (N>3) dest[3] = V3; \
1191 save->attrtype[A] = T; \
1197 for (i = 0; i < save->vertex_size; i++) \
1198 save->buffer_ptr[i] = save->vertex[i]; \
1200 save->buffer_ptr += save->vertex_size; \
1202 if (++save->vert_count >= save->max_vert) \
1203 wrap_filled_vertex(ctx); \
1207 #define TAG(x) _save_##x
1209 #include "vbo_attrib_tmp.h"
1213 #define MAT( ATTR, N, face, params ) \
1215 if (face != GL_BACK) \
1216 MAT_ATTR( ATTR, N, params ); /* front */ \
1217 if (face != GL_FRONT) \
1218 MAT_ATTR( ATTR + 1, N, params ); /* back */ \
1223 * Save a glMaterial call found between glBegin/End.
1224 * glMaterial calls outside Begin/End are handled in dlist.c.
1226 static void GLAPIENTRY
1227 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params)
1229 GET_CURRENT_CONTEXT(ctx);
1231 if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
1232 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(face)");
1238 MAT(VBO_ATTRIB_MAT_FRONT_EMISSION, 4, face, params);
1241 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1244 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1247 MAT(VBO_ATTRIB_MAT_FRONT_SPECULAR, 4, face, params);
1250 if (*params < 0 || *params > ctx->Const.MaxShininess) {
1251 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glMaterial(shininess)");
1254 MAT(VBO_ATTRIB_MAT_FRONT_SHININESS, 1, face, params);
1257 case GL_COLOR_INDEXES:
1258 MAT(VBO_ATTRIB_MAT_FRONT_INDEXES, 3, face, params);
1260 case GL_AMBIENT_AND_DIFFUSE:
1261 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1262 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1265 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(pname)");
1271 /* Cope with EvalCoord/CallList called within a begin/end object:
1272 * -- Flush current buffer
1273 * -- Fallback to opcodes for the rest of the begin/end object.
1276 dlist_fallback(struct gl_context *ctx)
1278 struct vbo_save_context *save = &vbo_context(ctx)->save;
1280 if (save->vert_count || save->prim_count) {
1281 if (save->prim_count > 0) {
1282 /* Close off in-progress primitive. */
1283 GLint i = save->prim_count - 1;
1284 save->prims[i].count = save->vert_count - save->prims[i].start;
1287 /* Need to replay this display list with loopback,
1288 * unfortunately, otherwise this primitive won't be handled
1291 save->dangling_attr_ref = GL_TRUE;
1293 compile_vertex_list(ctx);
1296 copy_to_current(ctx);
1298 reset_counters(ctx);
1299 if (save->out_of_memory) {
1300 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1303 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1305 ctx->Driver.SaveNeedFlush = GL_FALSE;
1309 static void GLAPIENTRY
1310 _save_EvalCoord1f(GLfloat u)
1312 GET_CURRENT_CONTEXT(ctx);
1313 dlist_fallback(ctx);
1314 CALL_EvalCoord1f(ctx->Save, (u));
1317 static void GLAPIENTRY
1318 _save_EvalCoord1fv(const GLfloat * v)
1320 GET_CURRENT_CONTEXT(ctx);
1321 dlist_fallback(ctx);
1322 CALL_EvalCoord1fv(ctx->Save, (v));
1325 static void GLAPIENTRY
1326 _save_EvalCoord2f(GLfloat u, GLfloat v)
1328 GET_CURRENT_CONTEXT(ctx);
1329 dlist_fallback(ctx);
1330 CALL_EvalCoord2f(ctx->Save, (u, v));
1333 static void GLAPIENTRY
1334 _save_EvalCoord2fv(const GLfloat * v)
1336 GET_CURRENT_CONTEXT(ctx);
1337 dlist_fallback(ctx);
1338 CALL_EvalCoord2fv(ctx->Save, (v));
1341 static void GLAPIENTRY
1342 _save_EvalPoint1(GLint i)
1344 GET_CURRENT_CONTEXT(ctx);
1345 dlist_fallback(ctx);
1346 CALL_EvalPoint1(ctx->Save, (i));
1349 static void GLAPIENTRY
1350 _save_EvalPoint2(GLint i, GLint j)
1352 GET_CURRENT_CONTEXT(ctx);
1353 dlist_fallback(ctx);
1354 CALL_EvalPoint2(ctx->Save, (i, j));
1357 static void GLAPIENTRY
1358 _save_CallList(GLuint l)
1360 GET_CURRENT_CONTEXT(ctx);
1361 dlist_fallback(ctx);
1362 CALL_CallList(ctx->Save, (l));
1365 static void GLAPIENTRY
1366 _save_CallLists(GLsizei n, GLenum type, const GLvoid * v)
1368 GET_CURRENT_CONTEXT(ctx);
1369 dlist_fallback(ctx);
1370 CALL_CallLists(ctx->Save, (n, type, v));
1376 * Called when a glBegin is getting compiled into a display list.
1377 * Updating of ctx->Driver.CurrentSavePrimitive is already taken care of.
1380 vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode,
1381 bool no_current_update)
1383 struct vbo_save_context *save = &vbo_context(ctx)->save;
1384 const GLuint i = save->prim_count++;
1386 ctx->Driver.CurrentSavePrimitive = mode;
1388 assert(i < save->prim_max);
1389 save->prims[i].mode = mode & VBO_SAVE_PRIM_MODE_MASK;
1390 save->prims[i].begin = 1;
1391 save->prims[i].end = 0;
1392 save->prims[i].start = save->vert_count;
1393 save->prims[i].count = 0;
1395 save->no_current_update = no_current_update;
1397 if (save->out_of_memory) {
1398 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1401 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
1404 /* We need to call vbo_save_SaveFlushVertices() if there's state change */
1405 ctx->Driver.SaveNeedFlush = GL_TRUE;
1409 static void GLAPIENTRY
1412 GET_CURRENT_CONTEXT(ctx);
1413 struct vbo_save_context *save = &vbo_context(ctx)->save;
1414 const GLint i = save->prim_count - 1;
1416 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1417 save->prims[i].end = 1;
1418 save->prims[i].count = (save->vert_count - save->prims[i].start);
1420 if (i == (GLint) save->prim_max - 1) {
1421 compile_vertex_list(ctx);
1422 assert(save->copied.nr == 0);
1425 /* Swap out this vertex format while outside begin/end. Any color,
1426 * etc. received between here and the next begin will be compiled
1429 if (save->out_of_memory) {
1430 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1433 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1438 static void GLAPIENTRY
1439 _save_Begin(GLenum mode)
1441 GET_CURRENT_CONTEXT(ctx);
1443 _mesa_compile_error(ctx, GL_INVALID_OPERATION, "Recursive glBegin");
1447 static void GLAPIENTRY
1448 _save_PrimitiveRestartNV(void)
1450 GET_CURRENT_CONTEXT(ctx);
1451 struct vbo_save_context *save = &vbo_context(ctx)->save;
1453 if (save->prim_count == 0) {
1454 /* We're not inside a glBegin/End pair, so calling glPrimitiverRestartNV
1457 _mesa_compile_error(ctx, GL_INVALID_OPERATION,
1458 "glPrimitiveRestartNV called outside glBegin/End");
1460 /* get current primitive mode */
1461 GLenum curPrim = save->prims[save->prim_count - 1].mode;
1462 bool no_current_update = save->no_current_update;
1464 /* restart primitive */
1465 CALL_End(ctx->CurrentServerDispatch, ());
1466 vbo_save_NotifyBegin(ctx, curPrim, no_current_update);
1471 /* Unlike the functions above, these are to be hooked into the vtxfmt
1472 * maintained in ctx->ListState, active when the list is known or
1473 * suspected to be outside any begin/end primitive.
1474 * Note: OBE = Outside Begin/End
1476 static void GLAPIENTRY
1477 _save_OBE_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
1479 GET_CURRENT_CONTEXT(ctx);
1480 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1482 vbo_save_NotifyBegin(ctx, GL_QUADS, false);
1483 CALL_Vertex2f(dispatch, (x1, y1));
1484 CALL_Vertex2f(dispatch, (x2, y1));
1485 CALL_Vertex2f(dispatch, (x2, y2));
1486 CALL_Vertex2f(dispatch, (x1, y2));
1487 CALL_End(dispatch, ());
1491 static void GLAPIENTRY
1492 _save_OBE_Rectd(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2)
1494 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1497 static void GLAPIENTRY
1498 _save_OBE_Rectdv(const GLdouble *v1, const GLdouble *v2)
1500 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1503 static void GLAPIENTRY
1504 _save_OBE_Rectfv(const GLfloat *v1, const GLfloat *v2)
1506 _save_OBE_Rectf(v1[0], v1[1], v2[0], v2[1]);
1509 static void GLAPIENTRY
1510 _save_OBE_Recti(GLint x1, GLint y1, GLint x2, GLint y2)
1512 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1515 static void GLAPIENTRY
1516 _save_OBE_Rectiv(const GLint *v1, const GLint *v2)
1518 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1521 static void GLAPIENTRY
1522 _save_OBE_Rects(GLshort x1, GLshort y1, GLshort x2, GLshort y2)
1524 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1527 static void GLAPIENTRY
1528 _save_OBE_Rectsv(const GLshort *v1, const GLshort *v2)
1530 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1534 _ensure_draws_fits_in_storage(struct gl_context *ctx, int primcount, int vertcount)
1536 struct vbo_save_context *save = &vbo_context(ctx)->save;
1538 bool realloc_prim = save->prim_count + primcount > save->prim_max;
1539 bool realloc_vert = save->vertex_size && (save->vert_count + vertcount >= save->max_vert);
1541 if (realloc_prim || realloc_vert) {
1542 if (save->vert_count || save->prim_count)
1543 compile_vertex_list(ctx);
1544 realloc_storage(ctx, realloc_prim ? primcount : -1, realloc_vert ? vertcount : -1);
1545 reset_counters(ctx);
1546 assert(save->prim_max);
1551 static void GLAPIENTRY
1552 _save_OBE_DrawArrays(GLenum mode, GLint start, GLsizei count)
1554 GET_CURRENT_CONTEXT(ctx);
1555 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1556 struct vbo_save_context *save = &vbo_context(ctx)->save;
1559 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1560 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)");
1564 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawArrays(count<0)");
1568 if (save->out_of_memory)
1571 _ensure_draws_fits_in_storage(ctx, 1, count);
1573 /* Make sure to process any VBO binding changes */
1574 _mesa_update_state(ctx);
1576 _mesa_vao_map_arrays(ctx, vao, GL_MAP_READ_BIT);
1578 vbo_save_NotifyBegin(ctx, mode, true);
1580 for (i = 0; i < count; i++)
1581 _mesa_array_element(ctx, start + i);
1582 CALL_End(ctx->CurrentServerDispatch, ());
1584 _mesa_vao_unmap_arrays(ctx, vao);
1588 static void GLAPIENTRY
1589 _save_OBE_MultiDrawArrays(GLenum mode, const GLint *first,
1590 const GLsizei *count, GLsizei primcount)
1592 GET_CURRENT_CONTEXT(ctx);
1595 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1596 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMultiDrawArrays(mode)");
1600 if (primcount < 0) {
1601 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1602 "glMultiDrawArrays(primcount<0)");
1606 unsigned vertcount = 0;
1607 for (i = 0; i < primcount; i++) {
1609 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1610 "glMultiDrawArrays(count[i]<0)");
1613 vertcount += count[i];
1616 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1618 for (i = 0; i < primcount; i++) {
1620 _save_OBE_DrawArrays(mode, first[i], count[i]);
1627 array_element(struct gl_context *ctx,
1628 GLint basevertex, GLuint elt, unsigned index_size_shift)
1630 /* Section 10.3.5 Primitive Restart:
1632 * When one of the *BaseVertex drawing commands specified in section 10.5
1633 * is used, the primitive restart comparison occurs before the basevertex
1634 * offset is added to the array index.
1636 /* If PrimitiveRestart is enabled and the index is the RestartIndex
1637 * then we call PrimitiveRestartNV and return.
1639 if (ctx->Array._PrimitiveRestart[index_size_shift] &&
1640 elt == ctx->Array._RestartIndex[index_size_shift]) {
1641 CALL_PrimitiveRestartNV(ctx->CurrentServerDispatch, ());
1645 _mesa_array_element(ctx, basevertex + elt);
1649 /* Could do better by copying the arrays and element list intact and
1650 * then emitting an indexed prim at runtime.
1652 static void GLAPIENTRY
1653 _save_OBE_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
1654 const GLvoid * indices, GLint basevertex)
1656 GET_CURRENT_CONTEXT(ctx);
1657 struct vbo_save_context *save = &vbo_context(ctx)->save;
1658 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1659 struct gl_buffer_object *indexbuf = vao->IndexBufferObj;
1662 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1663 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawElements(mode)");
1667 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1670 if (type != GL_UNSIGNED_BYTE &&
1671 type != GL_UNSIGNED_SHORT &&
1672 type != GL_UNSIGNED_INT) {
1673 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1677 if (save->out_of_memory)
1680 _ensure_draws_fits_in_storage(ctx, 1, count);
1682 /* Make sure to process any VBO binding changes */
1683 _mesa_update_state(ctx);
1685 _mesa_vao_map(ctx, vao, GL_MAP_READ_BIT);
1689 ADD_POINTERS(indexbuf->Mappings[MAP_INTERNAL].Pointer, indices);
1691 vbo_save_NotifyBegin(ctx, mode, true);
1694 case GL_UNSIGNED_BYTE:
1695 for (i = 0; i < count; i++)
1696 array_element(ctx, basevertex, ((GLubyte *) indices)[i], 0);
1698 case GL_UNSIGNED_SHORT:
1699 for (i = 0; i < count; i++)
1700 array_element(ctx, basevertex, ((GLushort *) indices)[i], 1);
1702 case GL_UNSIGNED_INT:
1703 for (i = 0; i < count; i++)
1704 array_element(ctx, basevertex, ((GLuint *) indices)[i], 2);
1707 _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)");
1711 CALL_End(ctx->CurrentServerDispatch, ());
1713 _mesa_vao_unmap(ctx, vao);
1716 static void GLAPIENTRY
1717 _save_OBE_DrawElements(GLenum mode, GLsizei count, GLenum type,
1718 const GLvoid * indices)
1720 _save_OBE_DrawElementsBaseVertex(mode, count, type, indices, 0);
1724 static void GLAPIENTRY
1725 _save_OBE_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
1726 GLsizei count, GLenum type,
1727 const GLvoid * indices)
1729 GET_CURRENT_CONTEXT(ctx);
1730 struct vbo_save_context *save = &vbo_context(ctx)->save;
1732 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1733 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)");
1737 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1738 "glDrawRangeElements(count<0)");
1741 if (type != GL_UNSIGNED_BYTE &&
1742 type != GL_UNSIGNED_SHORT &&
1743 type != GL_UNSIGNED_INT) {
1744 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(type)");
1748 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1749 "glDrawRangeElements(end < start)");
1753 if (save->out_of_memory)
1756 _save_OBE_DrawElements(mode, count, type, indices);
1760 static void GLAPIENTRY
1761 _save_OBE_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type,
1762 const GLvoid * const *indices, GLsizei primcount)
1764 GET_CURRENT_CONTEXT(ctx);
1765 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1769 for (i = 0; i < primcount; i++) {
1770 vertcount += count[i];
1772 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1774 for (i = 0; i < primcount; i++) {
1776 CALL_DrawElements(dispatch, (mode, count[i], type, indices[i]));
1782 static void GLAPIENTRY
1783 _save_OBE_MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count,
1785 const GLvoid * const *indices,
1787 const GLint *basevertex)
1789 GET_CURRENT_CONTEXT(ctx);
1790 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1794 for (i = 0; i < primcount; i++) {
1795 vertcount += count[i];
1797 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1799 for (i = 0; i < primcount; i++) {
1801 CALL_DrawElementsBaseVertex(dispatch, (mode, count[i], type,
1810 vtxfmt_init(struct gl_context *ctx)
1812 struct vbo_save_context *save = &vbo_context(ctx)->save;
1813 GLvertexformat *vfmt = &save->vtxfmt;
1815 #define NAME_AE(x) _ae_##x
1816 #define NAME_CALLLIST(x) _save_##x
1817 #define NAME(x) _save_##x
1818 #define NAME_ES(x) _save_##x##ARB
1820 #include "vbo_init_tmp.h"
1825 * Initialize the dispatch table with the VBO functions for display
1829 vbo_initialize_save_dispatch(const struct gl_context *ctx,
1830 struct _glapi_table *exec)
1832 SET_DrawArrays(exec, _save_OBE_DrawArrays);
1833 SET_MultiDrawArrays(exec, _save_OBE_MultiDrawArrays);
1834 SET_DrawElements(exec, _save_OBE_DrawElements);
1835 SET_DrawElementsBaseVertex(exec, _save_OBE_DrawElementsBaseVertex);
1836 SET_DrawRangeElements(exec, _save_OBE_DrawRangeElements);
1837 SET_MultiDrawElementsEXT(exec, _save_OBE_MultiDrawElements);
1838 SET_MultiDrawElementsBaseVertex(exec, _save_OBE_MultiDrawElementsBaseVertex);
1839 SET_Rectf(exec, _save_OBE_Rectf);
1840 SET_Rectd(exec, _save_OBE_Rectd);
1841 SET_Rectdv(exec, _save_OBE_Rectdv);
1842 SET_Rectfv(exec, _save_OBE_Rectfv);
1843 SET_Recti(exec, _save_OBE_Recti);
1844 SET_Rectiv(exec, _save_OBE_Rectiv);
1845 SET_Rects(exec, _save_OBE_Rects);
1846 SET_Rectsv(exec, _save_OBE_Rectsv);
1848 /* Note: other glDraw functins aren't compiled into display lists */
1854 vbo_save_SaveFlushVertices(struct gl_context *ctx)
1856 struct vbo_save_context *save = &vbo_context(ctx)->save;
1858 /* Noop when we are actually active:
1860 if (ctx->Driver.CurrentSavePrimitive <= PRIM_MAX)
1863 if (save->vert_count || save->prim_count)
1864 compile_vertex_list(ctx);
1866 copy_to_current(ctx);
1868 reset_counters(ctx);
1869 ctx->Driver.SaveNeedFlush = GL_FALSE;
1874 * Called from glNewList when we're starting to compile a display list.
1877 vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode)
1879 struct vbo_save_context *save = &vbo_context(ctx)->save;
1884 if (!save->prim_store)
1885 save->prim_store = alloc_prim_store(0);
1887 if (!save->vertex_store)
1888 save->vertex_store = alloc_vertex_store(ctx, 0);
1890 save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
1893 reset_counters(ctx);
1894 ctx->Driver.SaveNeedFlush = GL_FALSE;
1899 * Called from glEndList when we're finished compiling a display list.
1902 vbo_save_EndList(struct gl_context *ctx)
1904 struct vbo_save_context *save = &vbo_context(ctx)->save;
1906 /* EndList called inside a (saved) Begin/End pair?
1908 if (_mesa_inside_dlist_begin_end(ctx)) {
1909 if (save->prim_count > 0) {
1910 GLint i = save->prim_count - 1;
1911 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1912 save->prims[i].end = 0;
1913 save->prims[i].count = save->vert_count - save->prims[i].start;
1916 /* Make sure this vertex list gets replayed by the "loopback"
1919 save->dangling_attr_ref = GL_TRUE;
1920 vbo_save_SaveFlushVertices(ctx);
1922 /* Swap out this vertex format while outside begin/end. Any color,
1923 * etc. received between here and the next begin will be compiled
1926 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1929 vbo_save_unmap_vertex_store(ctx, save->vertex_store);
1931 assert(save->vertex_size == 0);
1936 * Called from the display list code when we're about to execute a
1940 vbo_save_BeginCallList(struct gl_context *ctx, struct gl_display_list *dlist)
1942 struct vbo_save_context *save = &vbo_context(ctx)->save;
1943 save->replay_flags |= dlist->Flags;
1948 * Called from the display list code when we're finished executing a
1952 vbo_save_EndCallList(struct gl_context *ctx)
1954 struct vbo_save_context *save = &vbo_context(ctx)->save;
1956 if (ctx->ListState.CallDepth == 1)
1957 save->replay_flags = 0;
1962 * Called during context creation/init.
1965 current_init(struct gl_context *ctx)
1967 struct vbo_save_context *save = &vbo_context(ctx)->save;
1970 for (i = VBO_ATTRIB_POS; i <= VBO_ATTRIB_GENERIC15; i++) {
1971 const GLuint j = i - VBO_ATTRIB_POS;
1972 assert(j < VERT_ATTRIB_MAX);
1973 save->currentsz[i] = &ctx->ListState.ActiveAttribSize[j];
1974 save->current[i] = (fi_type *) ctx->ListState.CurrentAttrib[j];
1977 for (i = VBO_ATTRIB_FIRST_MATERIAL; i <= VBO_ATTRIB_LAST_MATERIAL; i++) {
1978 const GLuint j = i - VBO_ATTRIB_FIRST_MATERIAL;
1979 assert(j < MAT_ATTRIB_MAX);
1980 save->currentsz[i] = &ctx->ListState.ActiveMaterialSize[j];
1981 save->current[i] = (fi_type *) ctx->ListState.CurrentMaterial[j];
1987 * Initialize the display list compiler. Called during context creation.
1990 vbo_save_api_init(struct vbo_save_context *save)
1992 struct gl_context *ctx = gl_context_from_vbo_save(save);
1996 _mesa_noop_vtxfmt_init(ctx, &save->vtxfmt_noop);