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->cold->prims[node->cold->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->cold->prims[node->cold->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->cold->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));
540 node->cold = calloc(1, sizeof(*node->cold));
542 /* Make sure the pointer is aligned to the size of a pointer */
543 assert((GLintptr) node % sizeof(void *) == 0);
545 /* Duplicate our template, increment refcounts to the storage structs:
547 GLintptr old_offset = 0;
549 old_offset = save->VAO[0]->BufferBinding[0].Offset
550 + save->VAO[0]->VertexAttrib[VERT_ATTRIB_POS].RelativeOffset;
552 const GLsizei stride = save->vertex_size*sizeof(GLfloat);
553 GLintptr buffer_offset =
554 (save->buffer_map - save->vertex_store->buffer_map) * sizeof(GLfloat);
555 assert(old_offset <= buffer_offset);
556 const GLintptr offset_diff = buffer_offset - old_offset;
557 GLuint start_offset = 0;
558 if (offset_diff > 0 && stride > 0 && offset_diff % stride == 0) {
559 /* The vertex size is an exact multiple of the buffer offset.
560 * This means that we can use zero-based vertex attribute pointers
561 * and specify the start of the primitive with the _mesa_prim::start
562 * field. This results in issuing several draw calls with identical
563 * vertex attribute information. This can result in fewer state
564 * changes in drivers. In particular, the Gallium CSO module will
565 * filter out redundant vertex buffer changes.
567 /* We cannot immediately update the primitives as some methods below
568 * still need the uncorrected start vertices
570 start_offset = offset_diff/stride;
571 assert(old_offset == buffer_offset - offset_diff);
572 buffer_offset = old_offset;
574 GLuint offsets[VBO_ATTRIB_MAX];
575 for (unsigned i = 0, offset = 0; i < VBO_ATTRIB_MAX; ++i) {
577 offset += save->attrsz[i] * sizeof(GLfloat);
579 node->cold->vertex_count = save->vert_count;
580 node->cold->wrap_count = save->copied.nr;
581 node->cold->prims = save->prims;
582 node->cold->ib.obj = NULL;
583 node->cold->prim_count = save->prim_count;
584 node->cold->prim_store = save->prim_store;
586 /* Create a pair of VAOs for the possible VERTEX_PROCESSING_MODEs
587 * Note that this may reuse the previous one of possible.
589 for (gl_vertex_processing_mode vpm = VP_MODE_FF; vpm < VP_MODE_MAX; ++vpm) {
590 /* create or reuse the vao */
591 update_vao(ctx, vpm, &save->VAO[vpm],
592 save->vertex_store->bufferobj, buffer_offset, stride,
593 save->enabled, save->attrsz, save->attrtype, offsets);
594 /* Reference the vao in the dlist */
595 node->VAO[vpm] = NULL;
596 _mesa_reference_vao(ctx, &node->VAO[vpm], save->VAO[vpm]);
599 node->cold->prim_store->refcount++;
601 if (save->no_current_update) {
602 node->cold->current_data = NULL;
605 GLuint current_size = save->vertex_size - save->attrsz[0];
606 node->cold->current_data = NULL;
609 node->cold->current_data = malloc(current_size * sizeof(GLfloat));
610 if (node->cold->current_data) {
611 const char *buffer = (const char *)save->buffer_map;
612 unsigned attr_offset = save->attrsz[0] * sizeof(GLfloat);
613 unsigned vertex_offset = 0;
615 if (node->cold->vertex_count)
616 vertex_offset = (node->cold->vertex_count - 1) * stride;
618 memcpy(node->cold->current_data, buffer + vertex_offset + attr_offset,
619 current_size * sizeof(GLfloat));
621 _mesa_error(ctx, GL_OUT_OF_MEMORY, "Current value allocation");
626 assert(save->attrsz[VBO_ATTRIB_POS] != 0 || node->cold->vertex_count == 0);
628 if (save->dangling_attr_ref)
629 ctx->ListState.CurrentList->Flags |= DLIST_DANGLING_REFS;
631 save->vertex_store->used += save->vertex_size * node->cold->vertex_count;
632 save->prim_store->used += node->cold->prim_count;
634 /* Copy duplicated vertices
636 save->copied.nr = copy_vertices(ctx, node, save->buffer_map);
638 if (node->cold->prims[node->cold->prim_count - 1].mode == GL_LINE_LOOP) {
639 convert_line_loop_to_strip(save, node);
642 merge_prims(ctx, node->cold->prims, &node->cold->prim_count);
644 /* Correct the primitive starts, we can only do this here as copy_vertices
645 * and convert_line_loop_to_strip above consume the uncorrected starts.
646 * On the other hand the _vbo_loopback_vertex_list call below needs the
647 * primitves to be corrected already.
649 for (unsigned i = 0; i < node->cold->prim_count; i++) {
650 node->cold->prims[i].start += start_offset;
653 /* Create an index buffer. */
654 node->cold->min_index = node->cold->max_index = 0;
655 if (save->vert_count == 0 || save->prim_count == 0)
658 /* We won't modify node->prims, so use a const alias to avoid unintended
660 const struct _mesa_prim *original_prims = node->cold->prims;
662 int end = original_prims[node->cold->prim_count - 1].start +
663 original_prims[node->cold->prim_count - 1].count;
664 int total_vert_count = end - original_prims[0].start;
666 node->cold->min_index = node->cold->prims[0].start;
667 node->cold->max_index = end - 1;
669 /* Estimate for the worst case: all prims are line strips (the +1 is because
670 * wrap_buffers may call use but the last primitive may not be complete) */
671 int max_indices_count = MAX2(total_vert_count * 2 - (node->cold->prim_count * 2) + 1,
674 int indices_offset = 0;
675 int available = save->previous_ib ? (save->previous_ib->Size / 4 - save->ib_first_free_index) : 0;
676 if (available >= max_indices_count) {
677 indices_offset = save->ib_first_free_index;
679 int size = max_indices_count * sizeof(uint32_t);
680 uint32_t* indices = (uint32_t*) malloc(size);
681 struct _mesa_prim *merged_prims = NULL;
685 int last_valid_prim = -1;
686 /* Construct indices array. */
687 for (unsigned i = 0; i < node->cold->prim_count; i++) {
688 assert(original_prims[i].basevertex == 0);
689 GLubyte mode = original_prims[i].mode;
691 int vertex_count = original_prims[i].count;
696 /* Line strips may get converted to lines */
697 if (mode == GL_LINE_STRIP)
700 /* If 2 consecutive prims use the same mode => merge them. */
701 bool merge_prims = last_valid_prim >= 0 &&
702 mode == merged_prims[last_valid_prim].mode &&
703 mode != GL_LINE_LOOP && mode != GL_TRIANGLE_FAN &&
704 mode != GL_QUAD_STRIP && mode != GL_POLYGON &&
707 /* To be able to merge consecutive triangle strips we need to insert
708 * a degenerate triangle.
711 mode == GL_TRIANGLE_STRIP) {
712 /* Insert a degenerate triangle */
713 assert(merged_prims[last_valid_prim].mode == GL_TRIANGLE_STRIP);
714 unsigned tri_count = merged_prims[last_valid_prim].count - 2;
716 indices[idx] = indices[idx - 1];
717 indices[idx + 1] = original_prims[i].start;
719 merged_prims[last_valid_prim].count += 2;
722 /* Add another index to preserve winding order */
723 indices[idx++] = original_prims[i].start;
724 merged_prims[last_valid_prim].count++;
730 /* Convert line strips to lines if it'll allow if the previous
731 * prim mode is GL_LINES (so merge_prims is true) or if the next
732 * primitive mode is GL_LINES or GL_LINE_LOOP.
734 if (original_prims[i].mode == GL_LINE_STRIP &&
736 (i < node->cold->prim_count - 1 &&
737 (original_prims[i + 1].mode == GL_LINE_STRIP ||
738 original_prims[i + 1].mode == GL_LINES)))) {
739 for (unsigned j = 0; j < vertex_count; j++) {
740 indices[idx++] = original_prims[i].start + j;
741 /* Repeat all but the first/last indices. */
742 if (j && j != vertex_count - 1) {
743 indices[idx++] = original_prims[i].start + j;
747 /* We didn't convert to LINES, so restore the original mode */
748 mode = original_prims[i].mode;
750 for (unsigned j = 0; j < vertex_count; j++) {
751 indices[idx++] = original_prims[i].start + j;
756 /* Update vertex count. */
757 merged_prims[last_valid_prim].count += idx - start;
759 /* Keep this primitive */
760 last_valid_prim += 1;
761 assert(last_valid_prim <= i);
762 merged_prims = realloc(merged_prims, (1 + last_valid_prim) * sizeof(struct _mesa_prim));
763 merged_prims[last_valid_prim] = original_prims[i];
764 merged_prims[last_valid_prim].start = indices_offset + start;
765 merged_prims[last_valid_prim].count = idx - start;
767 merged_prims[last_valid_prim].mode = mode;
770 assert(idx > 0 && idx <= max_indices_count);
772 unsigned merged_prim_count = last_valid_prim + 1;
773 node->cold->ib.ptr = NULL;
774 node->cold->ib.count = idx;
775 node->cold->ib.index_size_shift = (GL_UNSIGNED_INT - GL_UNSIGNED_BYTE) >> 1;
777 if (!indices_offset) {
778 /* Allocate a new index buffer */
779 _mesa_reference_buffer_object(ctx, &save->previous_ib, NULL);
780 save->previous_ib = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID + 1);
781 bool success = ctx->Driver.BufferData(ctx,
782 GL_ELEMENT_ARRAY_BUFFER_ARB,
783 MAX2(VBO_SAVE_INDEX_SIZE, idx) * sizeof(uint32_t),
785 GL_STATIC_DRAW_ARB, GL_MAP_WRITE_BIT,
788 _mesa_reference_buffer_object(ctx, &save->previous_ib, NULL);
789 _mesa_error(ctx, GL_OUT_OF_MEMORY, "IB allocation");
793 _mesa_reference_buffer_object(ctx, &node->cold->ib.obj, save->previous_ib);
795 if (node->cold->ib.obj) {
796 ctx->Driver.BufferSubData(ctx,
797 indices_offset * sizeof(uint32_t),
798 idx * sizeof(uint32_t),
801 save->ib_first_free_index = indices_offset + idx;
803 node->cold->vertex_count = 0;
804 node->cold->prim_count = 0;
807 /* Prepare for DrawGallium */
808 memset(&node->merged.info, 0, sizeof(struct pipe_draw_info));
809 /* The other info fields will be updated in vbo_save_playback_vertex_list */
810 node->merged.info.index_size = 4;
811 node->merged.info.instance_count = 1;
812 node->merged.info.index.gl_bo = node->cold->ib.obj;
813 if (merged_prim_count == 1) {
814 node->merged.info.mode = merged_prims[0].mode;
815 node->merged.start_count.start = merged_prims[0].start;
816 node->merged.start_count.count = merged_prims[0].count;
817 node->merged.start_count.index_bias = 0;
818 node->merged.mode = NULL;
820 node->merged.mode = malloc(merged_prim_count * sizeof(unsigned char));
821 node->merged.start_counts = malloc(merged_prim_count * sizeof(struct pipe_draw_start_count_bias));
822 for (unsigned i = 0; i < merged_prim_count; i++) {
823 node->merged.start_counts[i].start = merged_prims[i].start;
824 node->merged.start_counts[i].count = merged_prims[i].count;
825 node->merged.start_counts[i].index_bias = 0;
826 node->merged.mode[i] = merged_prims[i].mode;
829 node->merged.num_draws = merged_prim_count;
830 if (node->merged.num_draws > 1) {
831 bool same_mode = true;
832 for (unsigned i = 1; i < node->merged.num_draws && same_mode; i++) {
833 same_mode = node->merged.mode[i] == node->merged.mode[0];
836 /* All primitives use the same mode, so we can simplify a bit */
837 node->merged.info.mode = node->merged.mode[0];
838 free(node->merged.mode);
839 node->merged.mode = NULL;
847 /* Deal with GL_COMPILE_AND_EXECUTE:
849 if (ctx->ExecuteFlag) {
850 struct _glapi_table *dispatch = GET_DISPATCH();
852 _glapi_set_dispatch(ctx->Exec);
854 /* Note that the range of referenced vertices must be mapped already */
855 _vbo_loopback_vertex_list(ctx, node);
857 _glapi_set_dispatch(dispatch);
860 /* Decide whether the storage structs are full, or can be used for
861 * the next vertex lists as well.
863 if (save->vertex_store->used >
864 save->vertex_store->bufferobj->Size / sizeof(float) - 16 * (save->vertex_size + 4)) {
865 realloc_storage(ctx, -1, 0);
868 /* update buffer_ptr for next vertex */
869 save->buffer_ptr = save->vertex_store->buffer_map
870 + save->vertex_store->used;
873 if (save->prim_store->used > save->prim_store->size - 6) {
874 realloc_storage(ctx, 0, -1);
877 /* Reset our structures for the next run of vertices:
884 * This is called when we fill a vertex buffer before we hit a glEnd().
886 * TODO -- If no new vertices have been stored, don't bother saving it.
889 wrap_buffers(struct gl_context *ctx)
891 struct vbo_save_context *save = &vbo_context(ctx)->save;
892 GLint i = save->prim_count - 1;
895 assert(i < (GLint) save->prim_max);
898 /* Close off in-progress primitive.
900 save->prims[i].count = (save->vert_count - save->prims[i].start);
901 mode = save->prims[i].mode;
903 /* store the copied vertices, and allocate a new list.
905 compile_vertex_list(ctx);
907 /* Restart interrupted primitive
909 save->prims[0].mode = mode;
910 save->prims[0].begin = 0;
911 save->prims[0].end = 0;
912 save->prims[0].start = 0;
913 save->prims[0].count = 0;
914 save->prim_count = 1;
919 * Called only when buffers are wrapped as the result of filling the
920 * vertex_store struct.
923 wrap_filled_vertex(struct gl_context *ctx)
925 struct vbo_save_context *save = &vbo_context(ctx)->save;
926 unsigned numComponents;
928 /* Emit a glEnd to close off the last vertex list.
932 /* Copy stored stored vertices to start of new list.
934 assert(save->max_vert - save->vert_count > save->copied.nr);
936 numComponents = save->copied.nr * save->vertex_size;
937 memcpy(save->buffer_ptr,
939 numComponents * sizeof(fi_type));
940 save->buffer_ptr += numComponents;
941 save->vert_count += save->copied.nr;
946 copy_to_current(struct gl_context *ctx)
948 struct vbo_save_context *save = &vbo_context(ctx)->save;
949 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
952 const int i = u_bit_scan64(&enabled);
953 assert(save->attrsz[i]);
955 if (save->attrtype[i] == GL_DOUBLE ||
956 save->attrtype[i] == GL_UNSIGNED_INT64_ARB)
957 memcpy(save->current[i], save->attrptr[i], save->attrsz[i] * sizeof(GLfloat));
959 COPY_CLEAN_4V_TYPE_AS_UNION(save->current[i], save->attrsz[i],
960 save->attrptr[i], save->attrtype[i]);
966 copy_from_current(struct gl_context *ctx)
968 struct vbo_save_context *save = &vbo_context(ctx)->save;
969 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
972 const int i = u_bit_scan64(&enabled);
974 switch (save->attrsz[i]) {
976 save->attrptr[i][3] = save->current[i][3];
979 save->attrptr[i][2] = save->current[i][2];
982 save->attrptr[i][1] = save->current[i][1];
985 save->attrptr[i][0] = save->current[i][0];
988 unreachable("Unexpected vertex attribute size");
995 * Called when we increase the size of a vertex attribute. For example,
996 * if we've seen one or more glTexCoord2f() calls and now we get a
997 * glTexCoord3f() call.
998 * Flush existing data, set new attrib size, replay copied vertices.
1001 upgrade_vertex(struct gl_context *ctx, GLuint attr, GLuint newsz)
1003 struct vbo_save_context *save = &vbo_context(ctx)->save;
1008 /* Store the current run of vertices, and emit a GL_END. Emit a
1009 * BEGIN in the new buffer.
1011 if (save->vert_count)
1014 assert(save->copied.nr == 0);
1016 /* Do a COPY_TO_CURRENT to ensure back-copying works for the case
1017 * when the attribute already exists in the vertex and is having
1018 * its size increased.
1020 copy_to_current(ctx);
1024 oldsz = save->attrsz[attr];
1025 save->attrsz[attr] = newsz;
1026 save->enabled |= BITFIELD64_BIT(attr);
1028 save->vertex_size += newsz - oldsz;
1029 save->max_vert = ((save->vertex_store->bufferobj->Size / sizeof(float) -
1030 save->vertex_store->used) /
1032 save->vert_count = 0;
1034 /* Recalculate all the attrptr[] values:
1037 for (i = 0; i < VBO_ATTRIB_MAX; i++) {
1038 if (save->attrsz[i]) {
1039 save->attrptr[i] = tmp;
1040 tmp += save->attrsz[i];
1043 save->attrptr[i] = NULL; /* will not be dereferenced. */
1047 /* Copy from current to repopulate the vertex with correct values.
1049 copy_from_current(ctx);
1051 /* Replay stored vertices to translate them to new format here.
1053 * If there are copied vertices and the new (upgraded) attribute
1054 * has not been defined before, this list is somewhat degenerate,
1055 * and will need fixup at runtime.
1057 if (save->copied.nr) {
1058 const fi_type *data = save->copied.buffer;
1059 fi_type *dest = save->buffer_map;
1061 /* Need to note this and fix up at runtime (or loopback):
1063 if (attr != VBO_ATTRIB_POS && save->currentsz[attr][0] == 0) {
1065 save->dangling_attr_ref = GL_TRUE;
1068 for (i = 0; i < save->copied.nr; i++) {
1069 GLbitfield64 enabled = save->enabled;
1071 const int j = u_bit_scan64(&enabled);
1072 assert(save->attrsz[j]);
1075 COPY_CLEAN_4V_TYPE_AS_UNION(dest, oldsz, data,
1081 COPY_SZ_4V(dest, newsz, save->current[attr]);
1086 GLint sz = save->attrsz[j];
1087 COPY_SZ_4V(dest, sz, data);
1094 save->buffer_ptr = dest;
1095 save->vert_count += save->copied.nr;
1101 * This is called when the size of a vertex attribute changes.
1102 * For example, after seeing one or more glTexCoord2f() calls we
1103 * get a glTexCoord4f() or glTexCoord1f() call.
1106 fixup_vertex(struct gl_context *ctx, GLuint attr,
1107 GLuint sz, GLenum newType)
1109 struct vbo_save_context *save = &vbo_context(ctx)->save;
1111 if (sz > save->attrsz[attr] ||
1112 newType != save->attrtype[attr]) {
1113 /* New size is larger. Need to flush existing vertices and get
1114 * an enlarged vertex format.
1116 upgrade_vertex(ctx, attr, sz);
1118 else if (sz < save->active_sz[attr]) {
1120 const fi_type *id = vbo_get_default_vals_as_union(save->attrtype[attr]);
1122 /* New size is equal or smaller - just need to fill in some
1125 for (i = sz; i <= save->attrsz[attr]; i++)
1126 save->attrptr[attr][i - 1] = id[i - 1];
1129 save->active_sz[attr] = sz;
1134 * Reset the current size of all vertex attributes to the default
1135 * value of 0. This signals that we haven't yet seen any per-vertex
1136 * commands such as glNormal3f() or glTexCoord2f().
1139 reset_vertex(struct gl_context *ctx)
1141 struct vbo_save_context *save = &vbo_context(ctx)->save;
1143 while (save->enabled) {
1144 const int i = u_bit_scan64(&save->enabled);
1145 assert(save->attrsz[i]);
1146 save->attrsz[i] = 0;
1147 save->active_sz[i] = 0;
1150 save->vertex_size = 0;
1155 * If index=0, does glVertexAttrib*() alias glVertex() to emit a vertex?
1156 * It depends on a few things, including whether we're inside or outside
1160 is_vertex_position(const struct gl_context *ctx, GLuint index)
1162 return (index == 0 &&
1163 _mesa_attr_zero_aliases_vertex(ctx) &&
1164 _mesa_inside_dlist_begin_end(ctx));
1169 #define ERROR(err) _mesa_compile_error(ctx, err, __func__);
1172 /* Only one size for each attribute may be active at once. Eg. if
1173 * Color3f is installed/active, then Color4f may not be, even if the
1174 * vertex actually contains 4 color coordinates. This is because the
1175 * 3f version won't otherwise set color[3] to 1.0 -- this is the job
1176 * of the chooser function when switching between Color4f and Color3f.
1178 #define ATTR_UNION(A, N, T, C, V0, V1, V2, V3) \
1180 struct vbo_save_context *save = &vbo_context(ctx)->save; \
1181 int sz = (sizeof(C) / sizeof(GLfloat)); \
1183 if (save->active_sz[A] != N) \
1184 fixup_vertex(ctx, A, N * sz, T); \
1187 C *dest = (C *)save->attrptr[A]; \
1188 if (N>0) dest[0] = V0; \
1189 if (N>1) dest[1] = V1; \
1190 if (N>2) dest[2] = V2; \
1191 if (N>3) dest[3] = V3; \
1192 save->attrtype[A] = T; \
1198 for (i = 0; i < save->vertex_size; i++) \
1199 save->buffer_ptr[i] = save->vertex[i]; \
1201 save->buffer_ptr += save->vertex_size; \
1203 if (++save->vert_count >= save->max_vert) \
1204 wrap_filled_vertex(ctx); \
1208 #define TAG(x) _save_##x
1210 #include "vbo_attrib_tmp.h"
1214 #define MAT( ATTR, N, face, params ) \
1216 if (face != GL_BACK) \
1217 MAT_ATTR( ATTR, N, params ); /* front */ \
1218 if (face != GL_FRONT) \
1219 MAT_ATTR( ATTR + 1, N, params ); /* back */ \
1224 * Save a glMaterial call found between glBegin/End.
1225 * glMaterial calls outside Begin/End are handled in dlist.c.
1227 static void GLAPIENTRY
1228 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params)
1230 GET_CURRENT_CONTEXT(ctx);
1232 if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
1233 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(face)");
1239 MAT(VBO_ATTRIB_MAT_FRONT_EMISSION, 4, face, params);
1242 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1245 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1248 MAT(VBO_ATTRIB_MAT_FRONT_SPECULAR, 4, face, params);
1251 if (*params < 0 || *params > ctx->Const.MaxShininess) {
1252 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glMaterial(shininess)");
1255 MAT(VBO_ATTRIB_MAT_FRONT_SHININESS, 1, face, params);
1258 case GL_COLOR_INDEXES:
1259 MAT(VBO_ATTRIB_MAT_FRONT_INDEXES, 3, face, params);
1261 case GL_AMBIENT_AND_DIFFUSE:
1262 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1263 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1266 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(pname)");
1272 /* Cope with EvalCoord/CallList called within a begin/end object:
1273 * -- Flush current buffer
1274 * -- Fallback to opcodes for the rest of the begin/end object.
1277 dlist_fallback(struct gl_context *ctx)
1279 struct vbo_save_context *save = &vbo_context(ctx)->save;
1281 if (save->vert_count || save->prim_count) {
1282 if (save->prim_count > 0) {
1283 /* Close off in-progress primitive. */
1284 GLint i = save->prim_count - 1;
1285 save->prims[i].count = save->vert_count - save->prims[i].start;
1288 /* Need to replay this display list with loopback,
1289 * unfortunately, otherwise this primitive won't be handled
1292 save->dangling_attr_ref = GL_TRUE;
1294 compile_vertex_list(ctx);
1297 copy_to_current(ctx);
1299 reset_counters(ctx);
1300 if (save->out_of_memory) {
1301 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1304 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1306 ctx->Driver.SaveNeedFlush = GL_FALSE;
1310 static void GLAPIENTRY
1311 _save_EvalCoord1f(GLfloat u)
1313 GET_CURRENT_CONTEXT(ctx);
1314 dlist_fallback(ctx);
1315 CALL_EvalCoord1f(ctx->Save, (u));
1318 static void GLAPIENTRY
1319 _save_EvalCoord1fv(const GLfloat * v)
1321 GET_CURRENT_CONTEXT(ctx);
1322 dlist_fallback(ctx);
1323 CALL_EvalCoord1fv(ctx->Save, (v));
1326 static void GLAPIENTRY
1327 _save_EvalCoord2f(GLfloat u, GLfloat v)
1329 GET_CURRENT_CONTEXT(ctx);
1330 dlist_fallback(ctx);
1331 CALL_EvalCoord2f(ctx->Save, (u, v));
1334 static void GLAPIENTRY
1335 _save_EvalCoord2fv(const GLfloat * v)
1337 GET_CURRENT_CONTEXT(ctx);
1338 dlist_fallback(ctx);
1339 CALL_EvalCoord2fv(ctx->Save, (v));
1342 static void GLAPIENTRY
1343 _save_EvalPoint1(GLint i)
1345 GET_CURRENT_CONTEXT(ctx);
1346 dlist_fallback(ctx);
1347 CALL_EvalPoint1(ctx->Save, (i));
1350 static void GLAPIENTRY
1351 _save_EvalPoint2(GLint i, GLint j)
1353 GET_CURRENT_CONTEXT(ctx);
1354 dlist_fallback(ctx);
1355 CALL_EvalPoint2(ctx->Save, (i, j));
1358 static void GLAPIENTRY
1359 _save_CallList(GLuint l)
1361 GET_CURRENT_CONTEXT(ctx);
1362 dlist_fallback(ctx);
1363 CALL_CallList(ctx->Save, (l));
1366 static void GLAPIENTRY
1367 _save_CallLists(GLsizei n, GLenum type, const GLvoid * v)
1369 GET_CURRENT_CONTEXT(ctx);
1370 dlist_fallback(ctx);
1371 CALL_CallLists(ctx->Save, (n, type, v));
1377 * Called when a glBegin is getting compiled into a display list.
1378 * Updating of ctx->Driver.CurrentSavePrimitive is already taken care of.
1381 vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode,
1382 bool no_current_update)
1384 struct vbo_save_context *save = &vbo_context(ctx)->save;
1385 const GLuint i = save->prim_count++;
1387 ctx->Driver.CurrentSavePrimitive = mode;
1389 assert(i < save->prim_max);
1390 save->prims[i].mode = mode & VBO_SAVE_PRIM_MODE_MASK;
1391 save->prims[i].begin = 1;
1392 save->prims[i].end = 0;
1393 save->prims[i].start = save->vert_count;
1394 save->prims[i].count = 0;
1396 save->no_current_update = no_current_update;
1398 if (save->out_of_memory) {
1399 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1402 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
1405 /* We need to call vbo_save_SaveFlushVertices() if there's state change */
1406 ctx->Driver.SaveNeedFlush = GL_TRUE;
1410 static void GLAPIENTRY
1413 GET_CURRENT_CONTEXT(ctx);
1414 struct vbo_save_context *save = &vbo_context(ctx)->save;
1415 const GLint i = save->prim_count - 1;
1417 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1418 save->prims[i].end = 1;
1419 save->prims[i].count = (save->vert_count - save->prims[i].start);
1421 if (i == (GLint) save->prim_max - 1) {
1422 compile_vertex_list(ctx);
1423 assert(save->copied.nr == 0);
1426 /* Swap out this vertex format while outside begin/end. Any color,
1427 * etc. received between here and the next begin will be compiled
1430 if (save->out_of_memory) {
1431 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1434 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1439 static void GLAPIENTRY
1440 _save_Begin(GLenum mode)
1442 GET_CURRENT_CONTEXT(ctx);
1444 _mesa_compile_error(ctx, GL_INVALID_OPERATION, "Recursive glBegin");
1448 static void GLAPIENTRY
1449 _save_PrimitiveRestartNV(void)
1451 GET_CURRENT_CONTEXT(ctx);
1452 struct vbo_save_context *save = &vbo_context(ctx)->save;
1454 if (save->prim_count == 0) {
1455 /* We're not inside a glBegin/End pair, so calling glPrimitiverRestartNV
1458 _mesa_compile_error(ctx, GL_INVALID_OPERATION,
1459 "glPrimitiveRestartNV called outside glBegin/End");
1461 /* get current primitive mode */
1462 GLenum curPrim = save->prims[save->prim_count - 1].mode;
1463 bool no_current_update = save->no_current_update;
1465 /* restart primitive */
1466 CALL_End(ctx->CurrentServerDispatch, ());
1467 vbo_save_NotifyBegin(ctx, curPrim, no_current_update);
1472 /* Unlike the functions above, these are to be hooked into the vtxfmt
1473 * maintained in ctx->ListState, active when the list is known or
1474 * suspected to be outside any begin/end primitive.
1475 * Note: OBE = Outside Begin/End
1477 static void GLAPIENTRY
1478 _save_OBE_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
1480 GET_CURRENT_CONTEXT(ctx);
1481 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1483 vbo_save_NotifyBegin(ctx, GL_QUADS, false);
1484 CALL_Vertex2f(dispatch, (x1, y1));
1485 CALL_Vertex2f(dispatch, (x2, y1));
1486 CALL_Vertex2f(dispatch, (x2, y2));
1487 CALL_Vertex2f(dispatch, (x1, y2));
1488 CALL_End(dispatch, ());
1492 static void GLAPIENTRY
1493 _save_OBE_Rectd(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2)
1495 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1498 static void GLAPIENTRY
1499 _save_OBE_Rectdv(const GLdouble *v1, const GLdouble *v2)
1501 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1504 static void GLAPIENTRY
1505 _save_OBE_Rectfv(const GLfloat *v1, const GLfloat *v2)
1507 _save_OBE_Rectf(v1[0], v1[1], v2[0], v2[1]);
1510 static void GLAPIENTRY
1511 _save_OBE_Recti(GLint x1, GLint y1, GLint x2, GLint y2)
1513 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1516 static void GLAPIENTRY
1517 _save_OBE_Rectiv(const GLint *v1, const GLint *v2)
1519 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1522 static void GLAPIENTRY
1523 _save_OBE_Rects(GLshort x1, GLshort y1, GLshort x2, GLshort y2)
1525 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1528 static void GLAPIENTRY
1529 _save_OBE_Rectsv(const GLshort *v1, const GLshort *v2)
1531 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1535 _ensure_draws_fits_in_storage(struct gl_context *ctx, int primcount, int vertcount)
1537 struct vbo_save_context *save = &vbo_context(ctx)->save;
1539 bool realloc_prim = save->prim_count + primcount > save->prim_max;
1540 bool realloc_vert = save->vertex_size && (save->vert_count + vertcount >= save->max_vert);
1542 if (realloc_prim || realloc_vert) {
1543 if (save->vert_count || save->prim_count)
1544 compile_vertex_list(ctx);
1545 realloc_storage(ctx, realloc_prim ? primcount : -1, realloc_vert ? vertcount : -1);
1546 reset_counters(ctx);
1547 assert(save->prim_max);
1552 static void GLAPIENTRY
1553 _save_OBE_DrawArrays(GLenum mode, GLint start, GLsizei count)
1555 GET_CURRENT_CONTEXT(ctx);
1556 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1557 struct vbo_save_context *save = &vbo_context(ctx)->save;
1560 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1561 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)");
1565 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawArrays(count<0)");
1569 if (save->out_of_memory)
1572 _ensure_draws_fits_in_storage(ctx, 1, count);
1574 /* Make sure to process any VBO binding changes */
1575 _mesa_update_state(ctx);
1577 _mesa_vao_map_arrays(ctx, vao, GL_MAP_READ_BIT);
1579 vbo_save_NotifyBegin(ctx, mode, true);
1581 for (i = 0; i < count; i++)
1582 _mesa_array_element(ctx, start + i);
1583 CALL_End(ctx->CurrentServerDispatch, ());
1585 _mesa_vao_unmap_arrays(ctx, vao);
1589 static void GLAPIENTRY
1590 _save_OBE_MultiDrawArrays(GLenum mode, const GLint *first,
1591 const GLsizei *count, GLsizei primcount)
1593 GET_CURRENT_CONTEXT(ctx);
1596 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1597 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMultiDrawArrays(mode)");
1601 if (primcount < 0) {
1602 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1603 "glMultiDrawArrays(primcount<0)");
1607 unsigned vertcount = 0;
1608 for (i = 0; i < primcount; i++) {
1610 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1611 "glMultiDrawArrays(count[i]<0)");
1614 vertcount += count[i];
1617 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1619 for (i = 0; i < primcount; i++) {
1621 _save_OBE_DrawArrays(mode, first[i], count[i]);
1628 array_element(struct gl_context *ctx,
1629 GLint basevertex, GLuint elt, unsigned index_size_shift)
1631 /* Section 10.3.5 Primitive Restart:
1633 * When one of the *BaseVertex drawing commands specified in section 10.5
1634 * is used, the primitive restart comparison occurs before the basevertex
1635 * offset is added to the array index.
1637 /* If PrimitiveRestart is enabled and the index is the RestartIndex
1638 * then we call PrimitiveRestartNV and return.
1640 if (ctx->Array._PrimitiveRestart[index_size_shift] &&
1641 elt == ctx->Array._RestartIndex[index_size_shift]) {
1642 CALL_PrimitiveRestartNV(ctx->CurrentServerDispatch, ());
1646 _mesa_array_element(ctx, basevertex + elt);
1650 /* Could do better by copying the arrays and element list intact and
1651 * then emitting an indexed prim at runtime.
1653 static void GLAPIENTRY
1654 _save_OBE_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
1655 const GLvoid * indices, GLint basevertex)
1657 GET_CURRENT_CONTEXT(ctx);
1658 struct vbo_save_context *save = &vbo_context(ctx)->save;
1659 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1660 struct gl_buffer_object *indexbuf = vao->IndexBufferObj;
1663 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1664 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawElements(mode)");
1668 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1671 if (type != GL_UNSIGNED_BYTE &&
1672 type != GL_UNSIGNED_SHORT &&
1673 type != GL_UNSIGNED_INT) {
1674 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1678 if (save->out_of_memory)
1681 _ensure_draws_fits_in_storage(ctx, 1, count);
1683 /* Make sure to process any VBO binding changes */
1684 _mesa_update_state(ctx);
1686 _mesa_vao_map(ctx, vao, GL_MAP_READ_BIT);
1690 ADD_POINTERS(indexbuf->Mappings[MAP_INTERNAL].Pointer, indices);
1692 vbo_save_NotifyBegin(ctx, mode, true);
1695 case GL_UNSIGNED_BYTE:
1696 for (i = 0; i < count; i++)
1697 array_element(ctx, basevertex, ((GLubyte *) indices)[i], 0);
1699 case GL_UNSIGNED_SHORT:
1700 for (i = 0; i < count; i++)
1701 array_element(ctx, basevertex, ((GLushort *) indices)[i], 1);
1703 case GL_UNSIGNED_INT:
1704 for (i = 0; i < count; i++)
1705 array_element(ctx, basevertex, ((GLuint *) indices)[i], 2);
1708 _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)");
1712 CALL_End(ctx->CurrentServerDispatch, ());
1714 _mesa_vao_unmap(ctx, vao);
1717 static void GLAPIENTRY
1718 _save_OBE_DrawElements(GLenum mode, GLsizei count, GLenum type,
1719 const GLvoid * indices)
1721 _save_OBE_DrawElementsBaseVertex(mode, count, type, indices, 0);
1725 static void GLAPIENTRY
1726 _save_OBE_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
1727 GLsizei count, GLenum type,
1728 const GLvoid * indices)
1730 GET_CURRENT_CONTEXT(ctx);
1731 struct vbo_save_context *save = &vbo_context(ctx)->save;
1733 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1734 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)");
1738 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1739 "glDrawRangeElements(count<0)");
1742 if (type != GL_UNSIGNED_BYTE &&
1743 type != GL_UNSIGNED_SHORT &&
1744 type != GL_UNSIGNED_INT) {
1745 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(type)");
1749 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1750 "glDrawRangeElements(end < start)");
1754 if (save->out_of_memory)
1757 _save_OBE_DrawElements(mode, count, type, indices);
1761 static void GLAPIENTRY
1762 _save_OBE_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type,
1763 const GLvoid * const *indices, GLsizei primcount)
1765 GET_CURRENT_CONTEXT(ctx);
1766 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1770 for (i = 0; i < primcount; i++) {
1771 vertcount += count[i];
1773 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1775 for (i = 0; i < primcount; i++) {
1777 CALL_DrawElements(dispatch, (mode, count[i], type, indices[i]));
1783 static void GLAPIENTRY
1784 _save_OBE_MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count,
1786 const GLvoid * const *indices,
1788 const GLint *basevertex)
1790 GET_CURRENT_CONTEXT(ctx);
1791 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1795 for (i = 0; i < primcount; i++) {
1796 vertcount += count[i];
1798 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1800 for (i = 0; i < primcount; i++) {
1802 CALL_DrawElementsBaseVertex(dispatch, (mode, count[i], type,
1811 vtxfmt_init(struct gl_context *ctx)
1813 struct vbo_save_context *save = &vbo_context(ctx)->save;
1814 GLvertexformat *vfmt = &save->vtxfmt;
1816 #define NAME_AE(x) _ae_##x
1817 #define NAME_CALLLIST(x) _save_##x
1818 #define NAME(x) _save_##x
1819 #define NAME_ES(x) _save_##x##ARB
1821 #include "vbo_init_tmp.h"
1826 * Initialize the dispatch table with the VBO functions for display
1830 vbo_initialize_save_dispatch(const struct gl_context *ctx,
1831 struct _glapi_table *exec)
1833 SET_DrawArrays(exec, _save_OBE_DrawArrays);
1834 SET_MultiDrawArrays(exec, _save_OBE_MultiDrawArrays);
1835 SET_DrawElements(exec, _save_OBE_DrawElements);
1836 SET_DrawElementsBaseVertex(exec, _save_OBE_DrawElementsBaseVertex);
1837 SET_DrawRangeElements(exec, _save_OBE_DrawRangeElements);
1838 SET_MultiDrawElementsEXT(exec, _save_OBE_MultiDrawElements);
1839 SET_MultiDrawElementsBaseVertex(exec, _save_OBE_MultiDrawElementsBaseVertex);
1840 SET_Rectf(exec, _save_OBE_Rectf);
1841 SET_Rectd(exec, _save_OBE_Rectd);
1842 SET_Rectdv(exec, _save_OBE_Rectdv);
1843 SET_Rectfv(exec, _save_OBE_Rectfv);
1844 SET_Recti(exec, _save_OBE_Recti);
1845 SET_Rectiv(exec, _save_OBE_Rectiv);
1846 SET_Rects(exec, _save_OBE_Rects);
1847 SET_Rectsv(exec, _save_OBE_Rectsv);
1849 /* Note: other glDraw functins aren't compiled into display lists */
1855 vbo_save_SaveFlushVertices(struct gl_context *ctx)
1857 struct vbo_save_context *save = &vbo_context(ctx)->save;
1859 /* Noop when we are actually active:
1861 if (ctx->Driver.CurrentSavePrimitive <= PRIM_MAX)
1864 if (save->vert_count || save->prim_count)
1865 compile_vertex_list(ctx);
1867 copy_to_current(ctx);
1869 reset_counters(ctx);
1870 ctx->Driver.SaveNeedFlush = GL_FALSE;
1875 * Called from glNewList when we're starting to compile a display list.
1878 vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode)
1880 struct vbo_save_context *save = &vbo_context(ctx)->save;
1885 if (!save->prim_store)
1886 save->prim_store = alloc_prim_store(0);
1888 if (!save->vertex_store)
1889 save->vertex_store = alloc_vertex_store(ctx, 0);
1891 save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
1894 reset_counters(ctx);
1895 ctx->Driver.SaveNeedFlush = GL_FALSE;
1900 * Called from glEndList when we're finished compiling a display list.
1903 vbo_save_EndList(struct gl_context *ctx)
1905 struct vbo_save_context *save = &vbo_context(ctx)->save;
1907 /* EndList called inside a (saved) Begin/End pair?
1909 if (_mesa_inside_dlist_begin_end(ctx)) {
1910 if (save->prim_count > 0) {
1911 GLint i = save->prim_count - 1;
1912 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1913 save->prims[i].end = 0;
1914 save->prims[i].count = save->vert_count - save->prims[i].start;
1917 /* Make sure this vertex list gets replayed by the "loopback"
1920 save->dangling_attr_ref = GL_TRUE;
1921 vbo_save_SaveFlushVertices(ctx);
1923 /* Swap out this vertex format while outside begin/end. Any color,
1924 * etc. received between here and the next begin will be compiled
1927 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1930 vbo_save_unmap_vertex_store(ctx, save->vertex_store);
1932 assert(save->vertex_size == 0);
1937 * Called from the display list code when we're about to execute a
1941 vbo_save_BeginCallList(struct gl_context *ctx, struct gl_display_list *dlist)
1943 struct vbo_save_context *save = &vbo_context(ctx)->save;
1944 save->replay_flags |= dlist->Flags;
1949 * Called from the display list code when we're finished executing a
1953 vbo_save_EndCallList(struct gl_context *ctx)
1955 struct vbo_save_context *save = &vbo_context(ctx)->save;
1957 if (ctx->ListState.CallDepth == 1)
1958 save->replay_flags = 0;
1963 * Called during context creation/init.
1966 current_init(struct gl_context *ctx)
1968 struct vbo_save_context *save = &vbo_context(ctx)->save;
1971 for (i = VBO_ATTRIB_POS; i <= VBO_ATTRIB_GENERIC15; i++) {
1972 const GLuint j = i - VBO_ATTRIB_POS;
1973 assert(j < VERT_ATTRIB_MAX);
1974 save->currentsz[i] = &ctx->ListState.ActiveAttribSize[j];
1975 save->current[i] = (fi_type *) ctx->ListState.CurrentAttrib[j];
1978 for (i = VBO_ATTRIB_FIRST_MATERIAL; i <= VBO_ATTRIB_LAST_MATERIAL; i++) {
1979 const GLuint j = i - VBO_ATTRIB_FIRST_MATERIAL;
1980 assert(j < MAT_ATTRIB_MAX);
1981 save->currentsz[i] = &ctx->ListState.ActiveMaterialSize[j];
1982 save->current[i] = (fi_type *) ctx->ListState.CurrentMaterial[j];
1988 * Initialize the display list compiler. Called during context creation.
1991 vbo_save_api_init(struct vbo_save_context *save)
1993 struct gl_context *ctx = gl_context_from_vbo_save(save);
1997 _mesa_noop_vtxfmt_init(ctx, &save->vtxfmt_noop);