1 /**************************************************************************
3 Copyright 2002-2008 VMware, Inc.
7 Permission is hereby granted, free of charge, to any person obtaining a
8 copy of this software and associated documentation files (the "Software"),
9 to deal in the Software without restriction, including without limitation
10 on the rights to use, copy, modify, merge, publish, distribute, sub
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12 the Software is furnished to do so, subject to the following conditions:
14 The above copyright notice and this permission notice (including the next
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18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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23 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 * Keith Whitwell <keithw@vmware.com>
35 /* Display list compiler attempts to store lists of vertices with the
36 * same vertex layout. Additionally it attempts to minimize the need
37 * for execute-time fixup of these vertex lists, allowing them to be
40 * There are still some circumstances where this can be thwarted, for
41 * example by building a list that consists of one very long primitive
42 * (eg Begin(Triangles), 1000 vertices, End), and calling that list
43 * from inside a different begin/end object (Begin(Lines), CallList,
46 * In that case the code will have to replay the list as individual
47 * commands through the Exec dispatch table, or fix up the copied
48 * vertices at execute-time.
50 * The other case where fixup is required is when a vertex attribute
51 * is introduced in the middle of a primitive. Eg:
53 * TexCoord1f() Vertex2f()
54 * TexCoord1f() Color3f() Vertex2f()
57 * If the current value of Color isn't known at compile-time, this
58 * primitive will require fixup.
61 * The list compiler currently doesn't attempt to compile lists
62 * containing EvalCoord or EvalPoint commands. On encountering one of
63 * these, compilation falls back to opcodes.
65 * This could be improved to fallback only when a mix of EvalCoord and
66 * Vertex commands are issued within a single primitive.
70 #include "main/glheader.h"
71 #include "main/arrayobj.h"
72 #include "main/bufferobj.h"
73 #include "main/context.h"
74 #include "main/dlist.h"
75 #include "main/enums.h"
76 #include "main/eval.h"
77 #include "main/macros.h"
78 #include "main/draw_validate.h"
79 #include "main/api_arrayelt.h"
80 #include "main/vtxfmt.h"
81 #include "main/dispatch.h"
82 #include "main/state.h"
83 #include "main/varray.h"
84 #include "util/bitscan.h"
85 #include "util/u_memory.h"
88 #include "vbo_private.h"
96 * Display list flag only used by this VBO code.
98 #define DLIST_DANGLING_REFS 0x1
101 /* An interesting VBO number/name to help with debugging */
102 #define VBO_BUF_ID 12345
104 static void GLAPIENTRY
105 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params);
107 static void GLAPIENTRY
108 _save_EvalCoord1f(GLfloat u);
110 static void GLAPIENTRY
111 _save_EvalCoord2f(GLfloat u, GLfloat v);
114 * NOTE: Old 'parity' issue is gone, but copying can still be
115 * wrong-footed on replay.
118 copy_vertices(struct gl_context *ctx,
119 const struct vbo_save_vertex_list *node,
120 const fi_type * src_buffer)
122 struct vbo_save_context *save = &vbo_context(ctx)->save;
123 struct _mesa_prim *prim = &node->prims[node->prim_count - 1];
124 GLuint sz = save->vertex_size;
125 const fi_type *src = src_buffer + prim->start * sz;
126 fi_type *dst = save->copied.buffer;
131 return vbo_copy_vertices(ctx, prim->mode, prim->start, &prim->count,
132 prim->begin, sz, true, dst, src);
136 static struct vbo_save_vertex_store *
137 alloc_vertex_store(struct gl_context *ctx, int vertex_count)
139 struct vbo_save_context *save = &vbo_context(ctx)->save;
140 struct vbo_save_vertex_store *vertex_store =
141 CALLOC_STRUCT(vbo_save_vertex_store);
143 int size = MAX2(vertex_count * save->vertex_size, VBO_SAVE_BUFFER_SIZE);
145 /* obj->Name needs to be non-zero, but won't ever be examined more
146 * closely than that. In particular these buffers won't be entered
147 * into the hash and can never be confused with ones visible to the
148 * user. Perhaps there could be a special number for internal
151 vertex_store->bufferobj = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID);
152 if (vertex_store->bufferobj) {
153 save->out_of_memory =
154 !ctx->Driver.BufferData(ctx,
156 size * sizeof(GLfloat),
157 NULL, GL_STATIC_DRAW_ARB,
159 GL_DYNAMIC_STORAGE_BIT,
160 vertex_store->bufferobj);
163 save->out_of_memory = GL_TRUE;
166 if (save->out_of_memory) {
167 _mesa_error(ctx, GL_OUT_OF_MEMORY, "internal VBO allocation");
168 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
171 vertex_store->buffer_map = NULL;
172 vertex_store->used = 0;
179 free_vertex_store(struct gl_context *ctx,
180 struct vbo_save_vertex_store *vertex_store)
182 assert(!vertex_store->buffer_map);
184 if (vertex_store->bufferobj) {
185 _mesa_reference_buffer_object(ctx, &vertex_store->bufferobj, NULL);
193 vbo_save_map_vertex_store(struct gl_context *ctx,
194 struct vbo_save_vertex_store *vertex_store)
196 const GLbitfield access = (GL_MAP_WRITE_BIT |
197 GL_MAP_INVALIDATE_RANGE_BIT |
198 GL_MAP_UNSYNCHRONIZED_BIT |
199 GL_MAP_FLUSH_EXPLICIT_BIT |
202 assert(vertex_store->bufferobj);
203 assert(!vertex_store->buffer_map); /* the buffer should not be mapped */
205 if (vertex_store->bufferobj->Size > 0) {
206 /* Map the remaining free space in the VBO */
207 GLintptr offset = vertex_store->used * sizeof(GLfloat);
208 GLsizeiptr size = vertex_store->bufferobj->Size - offset;
209 fi_type *range = (fi_type *)
210 ctx->Driver.MapBufferRange(ctx, offset, size, access,
211 vertex_store->bufferobj,
214 /* compute address of start of whole buffer (needed elsewhere) */
215 vertex_store->buffer_map = range - vertex_store->used;
216 assert(vertex_store->buffer_map);
220 vertex_store->buffer_map = NULL;
225 /* probably ran out of memory for buffers */
232 vbo_save_unmap_vertex_store(struct gl_context *ctx,
233 struct vbo_save_vertex_store *vertex_store)
235 if (vertex_store->bufferobj->Size > 0) {
237 GLsizeiptr length = vertex_store->used * sizeof(GLfloat)
238 - vertex_store->bufferobj->Mappings[MAP_INTERNAL].Offset;
240 /* Explicitly flush the region we wrote to */
241 ctx->Driver.FlushMappedBufferRange(ctx, offset, length,
242 vertex_store->bufferobj,
245 ctx->Driver.UnmapBuffer(ctx, vertex_store->bufferobj, MAP_INTERNAL);
247 vertex_store->buffer_map = NULL;
251 static struct vbo_save_primitive_store *
252 alloc_prim_store(int prim_count)
254 struct vbo_save_primitive_store *store =
255 CALLOC_STRUCT(vbo_save_primitive_store);
256 store->size = MAX2(prim_count, VBO_SAVE_PRIM_SIZE);
257 store->prims = calloc(store->size, sizeof(struct _mesa_prim));
265 reset_counters(struct gl_context *ctx)
267 struct vbo_save_context *save = &vbo_context(ctx)->save;
269 save->prims = save->prim_store->prims + save->prim_store->used;
270 save->buffer_map = save->vertex_store->buffer_map + save->vertex_store->used;
272 assert(save->buffer_map == save->buffer_ptr);
274 if (save->vertex_size)
275 save->max_vert = (save->vertex_store->bufferobj->Size / sizeof(float) - save->vertex_store->used) /
280 save->vert_count = 0;
281 save->prim_count = 0;
282 save->prim_max = save->prim_store->size - save->prim_store->used;
283 save->dangling_attr_ref = GL_FALSE;
287 * For a list of prims, try merging prims that can just be extensions of the
291 merge_prims(struct gl_context *ctx, struct _mesa_prim *prim_list,
295 struct _mesa_prim *prev_prim = prim_list;
297 for (i = 1; i < *prim_count; i++) {
298 struct _mesa_prim *this_prim = prim_list + i;
300 vbo_try_prim_conversion(&this_prim->mode, &this_prim->count);
302 if (vbo_merge_draws(ctx, true,
303 prev_prim->mode, this_prim->mode,
304 prev_prim->start, this_prim->start,
305 &prev_prim->count, this_prim->count,
306 prev_prim->basevertex, this_prim->basevertex,
308 this_prim->begin, this_prim->end)) {
309 /* We've found a prim that just extend the previous one. Tack it
310 * onto the previous one, and let this primitive struct get dropped.
315 /* If any previous primitives have been dropped, then we need to copy
316 * this later one into the next available slot.
319 if (prev_prim != this_prim)
320 *prev_prim = *this_prim;
323 *prim_count = prev_prim - prim_list + 1;
328 * Convert GL_LINE_LOOP primitive into GL_LINE_STRIP so that drivers
329 * don't have to worry about handling the _mesa_prim::begin/end flags.
330 * See https://bugs.freedesktop.org/show_bug.cgi?id=81174
333 convert_line_loop_to_strip(struct vbo_save_context *save,
334 struct vbo_save_vertex_list *node)
336 struct _mesa_prim *prim = &node->prims[node->prim_count - 1];
338 assert(prim->mode == GL_LINE_LOOP);
341 /* Copy the 0th vertex to end of the buffer and extend the
342 * vertex count by one to finish the line loop.
344 const GLuint sz = save->vertex_size;
346 const fi_type *src = save->buffer_map + prim->start * sz;
348 fi_type *dst = save->buffer_map + (prim->start + prim->count) * sz;
350 memcpy(dst, src, sz * sizeof(float));
353 node->vertex_count++;
355 save->buffer_ptr += sz;
356 save->vertex_store->used += sz;
360 /* Drawing the second or later section of a long line loop.
361 * Skip the 0th vertex.
367 prim->mode = GL_LINE_STRIP;
371 /* Compare the present vao if it has the same setup. */
373 compare_vao(gl_vertex_processing_mode mode,
374 const struct gl_vertex_array_object *vao,
375 const struct gl_buffer_object *bo, GLintptr buffer_offset,
376 GLuint stride, GLbitfield64 vao_enabled,
377 const GLubyte size[VBO_ATTRIB_MAX],
378 const GLenum16 type[VBO_ATTRIB_MAX],
379 const GLuint offset[VBO_ATTRIB_MAX])
384 /* If the enabled arrays are not the same we are not equal. */
385 if (vao_enabled != vao->Enabled)
388 /* Check the buffer binding at 0 */
389 if (vao->BufferBinding[0].BufferObj != bo)
391 /* BufferBinding[0].Offset != buffer_offset is checked per attribute */
392 if (vao->BufferBinding[0].Stride != stride)
394 assert(vao->BufferBinding[0].InstanceDivisor == 0);
396 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space */
397 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
399 /* Now check the enabled arrays */
400 GLbitfield mask = vao_enabled;
402 const int attr = u_bit_scan(&mask);
403 const unsigned char vbo_attr = vao_to_vbo_map[attr];
404 const GLenum16 tp = type[vbo_attr];
405 const GLintptr off = offset[vbo_attr] + buffer_offset;
406 const struct gl_array_attributes *attrib = &vao->VertexAttrib[attr];
407 if (attrib->RelativeOffset + vao->BufferBinding[0].Offset != off)
409 if (attrib->Format.Type != tp)
411 if (attrib->Format.Size != size[vbo_attr])
413 assert(attrib->Format.Format == GL_RGBA);
414 assert(attrib->Format.Normalized == GL_FALSE);
415 assert(attrib->Format.Integer == vbo_attrtype_to_integer_flag(tp));
416 assert(attrib->Format.Doubles == vbo_attrtype_to_double_flag(tp));
417 assert(attrib->BufferBindingIndex == 0);
424 /* Create or reuse the vao for the vertex processing mode. */
426 update_vao(struct gl_context *ctx,
427 gl_vertex_processing_mode mode,
428 struct gl_vertex_array_object **vao,
429 struct gl_buffer_object *bo, GLintptr buffer_offset,
430 GLuint stride, GLbitfield64 vbo_enabled,
431 const GLubyte size[VBO_ATTRIB_MAX],
432 const GLenum16 type[VBO_ATTRIB_MAX],
433 const GLuint offset[VBO_ATTRIB_MAX])
435 /* Compute the bitmasks of vao_enabled arrays */
436 GLbitfield vao_enabled = _vbo_get_vao_enabled_from_vbo(mode, vbo_enabled);
439 * Check if we can possibly reuse the exisiting one.
440 * In the long term we should reset them when something changes.
442 if (compare_vao(mode, *vao, bo, buffer_offset, stride,
443 vao_enabled, size, type, offset))
446 /* The initial refcount is 1 */
447 _mesa_reference_vao(ctx, vao, NULL);
448 *vao = _mesa_new_vao(ctx, ~((GLuint)0));
451 * assert(stride <= ctx->Const.MaxVertexAttribStride);
452 * MaxVertexAttribStride is not set for drivers that does not
453 * expose GL 44 or GLES 31.
456 /* Bind the buffer object at binding point 0 */
457 _mesa_bind_vertex_buffer(ctx, *vao, 0, bo, buffer_offset, stride, false,
460 /* Retrieve the mapping from VBO_ATTRIB to VERT_ATTRIB space
461 * Note that the position/generic0 aliasing is done in the VAO.
463 const GLubyte *const vao_to_vbo_map = _vbo_attribute_alias_map[mode];
464 /* Now set the enable arrays */
465 GLbitfield mask = vao_enabled;
467 const int vao_attr = u_bit_scan(&mask);
468 const GLubyte vbo_attr = vao_to_vbo_map[vao_attr];
469 assert(offset[vbo_attr] <= ctx->Const.MaxVertexAttribRelativeOffset);
471 _vbo_set_attrib_format(ctx, *vao, vao_attr, buffer_offset,
472 size[vbo_attr], type[vbo_attr], offset[vbo_attr]);
473 _mesa_vertex_attrib_binding(ctx, *vao, vao_attr, 0);
475 _mesa_enable_vertex_array_attribs(ctx, *vao, vao_enabled);
476 assert(vao_enabled == (*vao)->Enabled);
477 assert((vao_enabled & ~(*vao)->VertexAttribBufferMask) == 0);
479 /* Finalize and freeze the VAO */
480 _mesa_set_vao_immutable(ctx, *vao);
485 realloc_storage(struct gl_context *ctx, int prim_count, int vertex_count)
487 struct vbo_save_context *save = &vbo_context(ctx)->save;
488 if (vertex_count >= 0) {
491 vbo_save_unmap_vertex_store(ctx, save->vertex_store);
493 /* Release old reference:
495 free_vertex_store(ctx, save->vertex_store);
496 save->vertex_store = NULL;
497 /* When we have a new vbo, we will for sure need a new vao */
498 for (gl_vertex_processing_mode vpm = 0; vpm < VP_MODE_MAX; ++vpm)
499 _mesa_reference_vao(ctx, &save->VAO[vpm], NULL);
501 /* Allocate and map new store:
503 save->vertex_store = alloc_vertex_store(ctx, vertex_count);
504 save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
505 save->out_of_memory = save->buffer_ptr == NULL;
508 if (prim_count >= 0) {
509 if (--save->prim_store->refcount == 0) {
510 free(save->prim_store->prims);
511 free(save->prim_store);
513 save->prim_store = alloc_prim_store(prim_count);
519 * Insert the active immediate struct onto the display list currently
523 compile_vertex_list(struct gl_context *ctx)
525 struct vbo_save_context *save = &vbo_context(ctx)->save;
526 struct vbo_save_vertex_list *node;
528 /* Allocate space for this structure in the display list currently
531 node = (struct vbo_save_vertex_list *)
532 _mesa_dlist_alloc_aligned(ctx, save->opcode_vertex_list, sizeof(*node));
537 /* Make sure the pointer is aligned to the size of a pointer */
538 assert((GLintptr) node % sizeof(void *) == 0);
540 /* Duplicate our template, increment refcounts to the storage structs:
542 GLintptr old_offset = 0;
544 old_offset = save->VAO[0]->BufferBinding[0].Offset
545 + save->VAO[0]->VertexAttrib[VERT_ATTRIB_POS].RelativeOffset;
547 const GLsizei stride = save->vertex_size*sizeof(GLfloat);
548 GLintptr buffer_offset =
549 (save->buffer_map - save->vertex_store->buffer_map) * sizeof(GLfloat);
550 assert(old_offset <= buffer_offset);
551 const GLintptr offset_diff = buffer_offset - old_offset;
552 GLuint start_offset = 0;
553 if (offset_diff > 0 && stride > 0 && offset_diff % stride == 0) {
554 /* The vertex size is an exact multiple of the buffer offset.
555 * This means that we can use zero-based vertex attribute pointers
556 * and specify the start of the primitive with the _mesa_prim::start
557 * field. This results in issuing several draw calls with identical
558 * vertex attribute information. This can result in fewer state
559 * changes in drivers. In particular, the Gallium CSO module will
560 * filter out redundant vertex buffer changes.
562 /* We cannot immediately update the primitives as some methods below
563 * still need the uncorrected start vertices
565 start_offset = offset_diff/stride;
566 assert(old_offset == buffer_offset - offset_diff);
567 buffer_offset = old_offset;
569 GLuint offsets[VBO_ATTRIB_MAX];
570 for (unsigned i = 0, offset = 0; i < VBO_ATTRIB_MAX; ++i) {
572 offset += save->attrsz[i] * sizeof(GLfloat);
574 node->vertex_count = save->vert_count;
575 node->wrap_count = save->copied.nr;
576 node->prims = save->prims;
577 node->merged.prims = NULL;
578 node->merged.ib.obj = NULL;
579 node->merged.prim_count = 0;
580 node->prim_count = save->prim_count;
581 node->prim_store = save->prim_store;
583 /* Create a pair of VAOs for the possible VERTEX_PROCESSING_MODEs
584 * Note that this may reuse the previous one of possible.
586 for (gl_vertex_processing_mode vpm = VP_MODE_FF; vpm < VP_MODE_MAX; ++vpm) {
587 /* create or reuse the vao */
588 update_vao(ctx, vpm, &save->VAO[vpm],
589 save->vertex_store->bufferobj, buffer_offset, stride,
590 save->enabled, save->attrsz, save->attrtype, offsets);
591 /* Reference the vao in the dlist */
592 node->VAO[vpm] = NULL;
593 _mesa_reference_vao(ctx, &node->VAO[vpm], save->VAO[vpm]);
596 node->prim_store->refcount++;
598 if (save->no_current_update) {
599 node->current_data = NULL;
602 GLuint current_size = save->vertex_size - save->attrsz[0];
603 node->current_data = NULL;
606 node->current_data = malloc(current_size * sizeof(GLfloat));
607 if (node->current_data) {
608 const char *buffer = (const char *)save->buffer_map;
609 unsigned attr_offset = save->attrsz[0] * sizeof(GLfloat);
610 unsigned vertex_offset = 0;
612 if (node->vertex_count)
613 vertex_offset = (node->vertex_count - 1) * stride;
615 memcpy(node->current_data, buffer + vertex_offset + attr_offset,
616 current_size * sizeof(GLfloat));
618 _mesa_error(ctx, GL_OUT_OF_MEMORY, "Current value allocation");
623 assert(save->attrsz[VBO_ATTRIB_POS] != 0 || node->vertex_count == 0);
625 if (save->dangling_attr_ref)
626 ctx->ListState.CurrentList->Flags |= DLIST_DANGLING_REFS;
628 save->vertex_store->used += save->vertex_size * node->vertex_count;
629 save->prim_store->used += node->prim_count;
631 /* Copy duplicated vertices
633 save->copied.nr = copy_vertices(ctx, node, save->buffer_map);
635 if (node->prims[node->prim_count - 1].mode == GL_LINE_LOOP) {
636 convert_line_loop_to_strip(save, node);
639 merge_prims(ctx, node->prims, &node->prim_count);
641 /* Correct the primitive starts, we can only do this here as copy_vertices
642 * and convert_line_loop_to_strip above consume the uncorrected starts.
643 * On the other hand the _vbo_loopback_vertex_list call below needs the
644 * primitves to be corrected already.
646 for (unsigned i = 0; i < node->prim_count; i++) {
647 node->prims[i].start += start_offset;
650 /* Create an index buffer. */
651 node->min_index = node->max_index = 0;
652 if (save->vert_count) {
653 /* We won't modify node->prims, so use a const alias to avoid unintended
655 const struct _mesa_prim *original_prims = node->prims;
657 int end = original_prims[node->prim_count - 1].start +
658 original_prims[node->prim_count - 1].count;
659 int total_vert_count = end - original_prims[0].start;
661 node->min_index = node->prims[0].start;
662 node->max_index = end - 1;
664 /* Estimate for the worst case: all prims are line strips (the +1 is because
665 * wrap_buffers may call use but the last primitive may not be complete) */
666 int max_indices_count = MAX2(total_vert_count * 2 - (node->prim_count * 2) + 1,
668 int size = max_indices_count * sizeof(uint32_t);
669 uint32_t* indices = (uint32_t*) malloc(size);
670 uint32_t max_index = 0, min_index = 0xFFFFFFFF;
674 int last_valid_prim = -1;
675 /* Construct indices array. */
676 for (unsigned i = 0; i < node->prim_count; i++) {
677 assert(original_prims[i].basevertex == 0);
678 GLubyte mode = original_prims[i].mode;
680 int vertex_count = original_prims[i].count;
685 /* Line strips get converted to lines */
686 if (mode == GL_LINE_STRIP)
689 /* If 2 consecutive prims use the same mode => merge them. */
690 bool merge_prims = last_valid_prim >= 0 &&
691 mode == node->merged.prims[last_valid_prim].mode &&
692 mode != GL_LINE_LOOP && mode != GL_TRIANGLE_FAN &&
693 mode != GL_QUAD_STRIP && mode != GL_POLYGON &&
696 /* To be able to merge consecutive triangle strips we need to insert
697 * a degenerate triangle.
700 mode == GL_TRIANGLE_STRIP) {
701 /* Insert a degenerate triangle */
702 assert(node->merged.prims[last_valid_prim].mode == GL_TRIANGLE_STRIP);
703 unsigned tri_count = node->merged.prims[last_valid_prim].count - 2;
705 indices[idx] = indices[idx - 1];
706 indices[idx + 1] = original_prims[i].start;
708 node->merged.prims[last_valid_prim].count += 2;
711 /* Add another index to preserve winding order */
712 indices[idx++] = original_prims[i].start;
713 node->merged.prims[last_valid_prim].count++;
719 /* Convert line strips to lines if it'll allow if the previous
720 * prim mode is GL_LINES (so merge_prims is true) or if the next
721 * primitive mode is GL_LINES or GL_LINE_LOOP.
723 if (original_prims[i].mode == GL_LINE_STRIP &&
725 (i < node->prim_count - 1 &&
726 (original_prims[i + 1].mode == GL_LINE_STRIP ||
727 original_prims[i + 1].mode == GL_LINES)))) {
728 for (unsigned j = 0; j < vertex_count; j++) {
729 indices[idx++] = original_prims[i].start + j;
730 /* Repeat all but the first/last indices. */
731 if (j && j != vertex_count - 1) {
732 indices[idx++] = original_prims[i].start + j;
736 for (unsigned j = 0; j < vertex_count; j++) {
737 indices[idx++] = original_prims[i].start + j;
741 min_index = MIN2(min_index, indices[start]);
742 max_index = MAX2(max_index, indices[idx - 1]);
745 /* Update vertex count. */
746 node->merged.prims[last_valid_prim].count += idx - start;
748 /* Keep this primitive */
749 last_valid_prim += 1;
750 assert(last_valid_prim <= i);
751 node->merged.prims = realloc(node->merged.prims, (1 + last_valid_prim) * sizeof(struct _mesa_prim));
752 node->merged.prims[last_valid_prim] = original_prims[i];
753 node->merged.prims[last_valid_prim].start = start;
754 node->merged.prims[last_valid_prim].count = idx - start;
756 node->merged.prims[last_valid_prim].mode = mode;
762 assert(idx <= max_indices_count);
764 node->merged.prim_count = last_valid_prim + 1;
765 node->merged.ib.ptr = NULL;
766 node->merged.ib.count = idx;
767 node->merged.ib.index_size_shift = (GL_UNSIGNED_INT - GL_UNSIGNED_BYTE) >> 1;
768 node->merged.min_index = min_index;
769 node->merged.max_index = max_index;
771 node->merged.ib.obj = ctx->Driver.NewBufferObject(ctx, VBO_BUF_ID + 1);
772 bool success = ctx->Driver.BufferData(ctx,
773 GL_ELEMENT_ARRAY_BUFFER_ARB,
774 idx * sizeof(uint32_t), indices,
775 GL_STATIC_DRAW_ARB, GL_MAP_WRITE_BIT,
776 node->merged.ib.obj);
781 ctx->Driver.DeleteBuffer(ctx, node->merged.ib.obj);
782 _mesa_error(ctx, GL_OUT_OF_MEMORY, "IB allocation");
785 node->merged.ib.obj = NULL;
786 node->vertex_count = 0;
787 node->prim_count = 0;
793 /* Deal with GL_COMPILE_AND_EXECUTE:
795 if (ctx->ExecuteFlag) {
796 struct _glapi_table *dispatch = GET_DISPATCH();
798 _glapi_set_dispatch(ctx->Exec);
800 /* Note that the range of referenced vertices must be mapped already */
801 _vbo_loopback_vertex_list(ctx, node);
803 _glapi_set_dispatch(dispatch);
806 /* Decide whether the storage structs are full, or can be used for
807 * the next vertex lists as well.
809 if (save->vertex_store->used >
810 save->vertex_store->bufferobj->Size / sizeof(float) - 16 * (save->vertex_size + 4)) {
811 realloc_storage(ctx, -1, 0);
814 /* update buffer_ptr for next vertex */
815 save->buffer_ptr = save->vertex_store->buffer_map
816 + save->vertex_store->used;
819 if (save->prim_store->used > save->prim_store->size - 6) {
820 realloc_storage(ctx, 0, -1);
823 /* Reset our structures for the next run of vertices:
830 * This is called when we fill a vertex buffer before we hit a glEnd().
832 * TODO -- If no new vertices have been stored, don't bother saving it.
835 wrap_buffers(struct gl_context *ctx)
837 struct vbo_save_context *save = &vbo_context(ctx)->save;
838 GLint i = save->prim_count - 1;
841 assert(i < (GLint) save->prim_max);
844 /* Close off in-progress primitive.
846 save->prims[i].count = (save->vert_count - save->prims[i].start);
847 mode = save->prims[i].mode;
849 /* store the copied vertices, and allocate a new list.
851 compile_vertex_list(ctx);
853 /* Restart interrupted primitive
855 save->prims[0].mode = mode;
856 save->prims[0].begin = 0;
857 save->prims[0].end = 0;
858 save->prims[0].start = 0;
859 save->prims[0].count = 0;
860 save->prim_count = 1;
865 * Called only when buffers are wrapped as the result of filling the
866 * vertex_store struct.
869 wrap_filled_vertex(struct gl_context *ctx)
871 struct vbo_save_context *save = &vbo_context(ctx)->save;
872 unsigned numComponents;
874 /* Emit a glEnd to close off the last vertex list.
878 /* Copy stored stored vertices to start of new list.
880 assert(save->max_vert - save->vert_count > save->copied.nr);
882 numComponents = save->copied.nr * save->vertex_size;
883 memcpy(save->buffer_ptr,
885 numComponents * sizeof(fi_type));
886 save->buffer_ptr += numComponents;
887 save->vert_count += save->copied.nr;
892 copy_to_current(struct gl_context *ctx)
894 struct vbo_save_context *save = &vbo_context(ctx)->save;
895 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
898 const int i = u_bit_scan64(&enabled);
899 assert(save->attrsz[i]);
901 if (save->attrtype[i] == GL_DOUBLE ||
902 save->attrtype[i] == GL_UNSIGNED_INT64_ARB)
903 memcpy(save->current[i], save->attrptr[i], save->attrsz[i] * sizeof(GLfloat));
905 COPY_CLEAN_4V_TYPE_AS_UNION(save->current[i], save->attrsz[i],
906 save->attrptr[i], save->attrtype[i]);
912 copy_from_current(struct gl_context *ctx)
914 struct vbo_save_context *save = &vbo_context(ctx)->save;
915 GLbitfield64 enabled = save->enabled & (~BITFIELD64_BIT(VBO_ATTRIB_POS));
918 const int i = u_bit_scan64(&enabled);
920 switch (save->attrsz[i]) {
922 save->attrptr[i][3] = save->current[i][3];
925 save->attrptr[i][2] = save->current[i][2];
928 save->attrptr[i][1] = save->current[i][1];
931 save->attrptr[i][0] = save->current[i][0];
934 unreachable("Unexpected vertex attribute size");
941 * Called when we increase the size of a vertex attribute. For example,
942 * if we've seen one or more glTexCoord2f() calls and now we get a
943 * glTexCoord3f() call.
944 * Flush existing data, set new attrib size, replay copied vertices.
947 upgrade_vertex(struct gl_context *ctx, GLuint attr, GLuint newsz)
949 struct vbo_save_context *save = &vbo_context(ctx)->save;
954 /* Store the current run of vertices, and emit a GL_END. Emit a
955 * BEGIN in the new buffer.
957 if (save->vert_count)
960 assert(save->copied.nr == 0);
962 /* Do a COPY_TO_CURRENT to ensure back-copying works for the case
963 * when the attribute already exists in the vertex and is having
964 * its size increased.
966 copy_to_current(ctx);
970 oldsz = save->attrsz[attr];
971 save->attrsz[attr] = newsz;
972 save->enabled |= BITFIELD64_BIT(attr);
974 save->vertex_size += newsz - oldsz;
975 save->max_vert = ((save->vertex_store->bufferobj->Size / sizeof(float) -
976 save->vertex_store->used) /
978 save->vert_count = 0;
980 /* Recalculate all the attrptr[] values:
983 for (i = 0; i < VBO_ATTRIB_MAX; i++) {
984 if (save->attrsz[i]) {
985 save->attrptr[i] = tmp;
986 tmp += save->attrsz[i];
989 save->attrptr[i] = NULL; /* will not be dereferenced. */
993 /* Copy from current to repopulate the vertex with correct values.
995 copy_from_current(ctx);
997 /* Replay stored vertices to translate them to new format here.
999 * If there are copied vertices and the new (upgraded) attribute
1000 * has not been defined before, this list is somewhat degenerate,
1001 * and will need fixup at runtime.
1003 if (save->copied.nr) {
1004 const fi_type *data = save->copied.buffer;
1005 fi_type *dest = save->buffer_map;
1007 /* Need to note this and fix up at runtime (or loopback):
1009 if (attr != VBO_ATTRIB_POS && save->currentsz[attr][0] == 0) {
1011 save->dangling_attr_ref = GL_TRUE;
1014 for (i = 0; i < save->copied.nr; i++) {
1015 GLbitfield64 enabled = save->enabled;
1017 const int j = u_bit_scan64(&enabled);
1018 assert(save->attrsz[j]);
1021 COPY_CLEAN_4V_TYPE_AS_UNION(dest, oldsz, data,
1027 COPY_SZ_4V(dest, newsz, save->current[attr]);
1032 GLint sz = save->attrsz[j];
1033 COPY_SZ_4V(dest, sz, data);
1040 save->buffer_ptr = dest;
1041 save->vert_count += save->copied.nr;
1047 * This is called when the size of a vertex attribute changes.
1048 * For example, after seeing one or more glTexCoord2f() calls we
1049 * get a glTexCoord4f() or glTexCoord1f() call.
1052 fixup_vertex(struct gl_context *ctx, GLuint attr,
1053 GLuint sz, GLenum newType)
1055 struct vbo_save_context *save = &vbo_context(ctx)->save;
1057 if (sz > save->attrsz[attr] ||
1058 newType != save->attrtype[attr]) {
1059 /* New size is larger. Need to flush existing vertices and get
1060 * an enlarged vertex format.
1062 upgrade_vertex(ctx, attr, sz);
1064 else if (sz < save->active_sz[attr]) {
1066 const fi_type *id = vbo_get_default_vals_as_union(save->attrtype[attr]);
1068 /* New size is equal or smaller - just need to fill in some
1071 for (i = sz; i <= save->attrsz[attr]; i++)
1072 save->attrptr[attr][i - 1] = id[i - 1];
1075 save->active_sz[attr] = sz;
1080 * Reset the current size of all vertex attributes to the default
1081 * value of 0. This signals that we haven't yet seen any per-vertex
1082 * commands such as glNormal3f() or glTexCoord2f().
1085 reset_vertex(struct gl_context *ctx)
1087 struct vbo_save_context *save = &vbo_context(ctx)->save;
1089 while (save->enabled) {
1090 const int i = u_bit_scan64(&save->enabled);
1091 assert(save->attrsz[i]);
1092 save->attrsz[i] = 0;
1093 save->active_sz[i] = 0;
1096 save->vertex_size = 0;
1101 * If index=0, does glVertexAttrib*() alias glVertex() to emit a vertex?
1102 * It depends on a few things, including whether we're inside or outside
1106 is_vertex_position(const struct gl_context *ctx, GLuint index)
1108 return (index == 0 &&
1109 _mesa_attr_zero_aliases_vertex(ctx) &&
1110 _mesa_inside_dlist_begin_end(ctx));
1115 #define ERROR(err) _mesa_compile_error(ctx, err, __func__);
1118 /* Only one size for each attribute may be active at once. Eg. if
1119 * Color3f is installed/active, then Color4f may not be, even if the
1120 * vertex actually contains 4 color coordinates. This is because the
1121 * 3f version won't otherwise set color[3] to 1.0 -- this is the job
1122 * of the chooser function when switching between Color4f and Color3f.
1124 #define ATTR_UNION(A, N, T, C, V0, V1, V2, V3) \
1126 struct vbo_save_context *save = &vbo_context(ctx)->save; \
1127 int sz = (sizeof(C) / sizeof(GLfloat)); \
1129 if (save->active_sz[A] != N) \
1130 fixup_vertex(ctx, A, N * sz, T); \
1133 C *dest = (C *)save->attrptr[A]; \
1134 if (N>0) dest[0] = V0; \
1135 if (N>1) dest[1] = V1; \
1136 if (N>2) dest[2] = V2; \
1137 if (N>3) dest[3] = V3; \
1138 save->attrtype[A] = T; \
1144 for (i = 0; i < save->vertex_size; i++) \
1145 save->buffer_ptr[i] = save->vertex[i]; \
1147 save->buffer_ptr += save->vertex_size; \
1149 if (++save->vert_count >= save->max_vert) \
1150 wrap_filled_vertex(ctx); \
1154 #define TAG(x) _save_##x
1156 #include "vbo_attrib_tmp.h"
1160 #define MAT( ATTR, N, face, params ) \
1162 if (face != GL_BACK) \
1163 MAT_ATTR( ATTR, N, params ); /* front */ \
1164 if (face != GL_FRONT) \
1165 MAT_ATTR( ATTR + 1, N, params ); /* back */ \
1170 * Save a glMaterial call found between glBegin/End.
1171 * glMaterial calls outside Begin/End are handled in dlist.c.
1173 static void GLAPIENTRY
1174 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params)
1176 GET_CURRENT_CONTEXT(ctx);
1178 if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
1179 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(face)");
1185 MAT(VBO_ATTRIB_MAT_FRONT_EMISSION, 4, face, params);
1188 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1191 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1194 MAT(VBO_ATTRIB_MAT_FRONT_SPECULAR, 4, face, params);
1197 if (*params < 0 || *params > ctx->Const.MaxShininess) {
1198 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glMaterial(shininess)");
1201 MAT(VBO_ATTRIB_MAT_FRONT_SHININESS, 1, face, params);
1204 case GL_COLOR_INDEXES:
1205 MAT(VBO_ATTRIB_MAT_FRONT_INDEXES, 3, face, params);
1207 case GL_AMBIENT_AND_DIFFUSE:
1208 MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
1209 MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
1212 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(pname)");
1218 /* Cope with EvalCoord/CallList called within a begin/end object:
1219 * -- Flush current buffer
1220 * -- Fallback to opcodes for the rest of the begin/end object.
1223 dlist_fallback(struct gl_context *ctx)
1225 struct vbo_save_context *save = &vbo_context(ctx)->save;
1227 if (save->vert_count || save->prim_count) {
1228 if (save->prim_count > 0) {
1229 /* Close off in-progress primitive. */
1230 GLint i = save->prim_count - 1;
1231 save->prims[i].count = save->vert_count - save->prims[i].start;
1234 /* Need to replay this display list with loopback,
1235 * unfortunately, otherwise this primitive won't be handled
1238 save->dangling_attr_ref = GL_TRUE;
1240 compile_vertex_list(ctx);
1243 copy_to_current(ctx);
1245 reset_counters(ctx);
1246 if (save->out_of_memory) {
1247 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1250 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1252 ctx->Driver.SaveNeedFlush = GL_FALSE;
1256 static void GLAPIENTRY
1257 _save_EvalCoord1f(GLfloat u)
1259 GET_CURRENT_CONTEXT(ctx);
1260 dlist_fallback(ctx);
1261 CALL_EvalCoord1f(ctx->Save, (u));
1264 static void GLAPIENTRY
1265 _save_EvalCoord1fv(const GLfloat * v)
1267 GET_CURRENT_CONTEXT(ctx);
1268 dlist_fallback(ctx);
1269 CALL_EvalCoord1fv(ctx->Save, (v));
1272 static void GLAPIENTRY
1273 _save_EvalCoord2f(GLfloat u, GLfloat v)
1275 GET_CURRENT_CONTEXT(ctx);
1276 dlist_fallback(ctx);
1277 CALL_EvalCoord2f(ctx->Save, (u, v));
1280 static void GLAPIENTRY
1281 _save_EvalCoord2fv(const GLfloat * v)
1283 GET_CURRENT_CONTEXT(ctx);
1284 dlist_fallback(ctx);
1285 CALL_EvalCoord2fv(ctx->Save, (v));
1288 static void GLAPIENTRY
1289 _save_EvalPoint1(GLint i)
1291 GET_CURRENT_CONTEXT(ctx);
1292 dlist_fallback(ctx);
1293 CALL_EvalPoint1(ctx->Save, (i));
1296 static void GLAPIENTRY
1297 _save_EvalPoint2(GLint i, GLint j)
1299 GET_CURRENT_CONTEXT(ctx);
1300 dlist_fallback(ctx);
1301 CALL_EvalPoint2(ctx->Save, (i, j));
1304 static void GLAPIENTRY
1305 _save_CallList(GLuint l)
1307 GET_CURRENT_CONTEXT(ctx);
1308 dlist_fallback(ctx);
1309 CALL_CallList(ctx->Save, (l));
1312 static void GLAPIENTRY
1313 _save_CallLists(GLsizei n, GLenum type, const GLvoid * v)
1315 GET_CURRENT_CONTEXT(ctx);
1316 dlist_fallback(ctx);
1317 CALL_CallLists(ctx->Save, (n, type, v));
1323 * Called when a glBegin is getting compiled into a display list.
1324 * Updating of ctx->Driver.CurrentSavePrimitive is already taken care of.
1327 vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode,
1328 bool no_current_update)
1330 struct vbo_save_context *save = &vbo_context(ctx)->save;
1331 const GLuint i = save->prim_count++;
1333 ctx->Driver.CurrentSavePrimitive = mode;
1335 assert(i < save->prim_max);
1336 save->prims[i].mode = mode & VBO_SAVE_PRIM_MODE_MASK;
1337 save->prims[i].begin = 1;
1338 save->prims[i].end = 0;
1339 save->prims[i].start = save->vert_count;
1340 save->prims[i].count = 0;
1342 save->no_current_update = no_current_update;
1344 if (save->out_of_memory) {
1345 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1348 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
1351 /* We need to call vbo_save_SaveFlushVertices() if there's state change */
1352 ctx->Driver.SaveNeedFlush = GL_TRUE;
1356 static void GLAPIENTRY
1359 GET_CURRENT_CONTEXT(ctx);
1360 struct vbo_save_context *save = &vbo_context(ctx)->save;
1361 const GLint i = save->prim_count - 1;
1363 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1364 save->prims[i].end = 1;
1365 save->prims[i].count = (save->vert_count - save->prims[i].start);
1367 if (i == (GLint) save->prim_max - 1) {
1368 compile_vertex_list(ctx);
1369 assert(save->copied.nr == 0);
1372 /* Swap out this vertex format while outside begin/end. Any color,
1373 * etc. received between here and the next begin will be compiled
1376 if (save->out_of_memory) {
1377 _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
1380 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1385 static void GLAPIENTRY
1386 _save_Begin(GLenum mode)
1388 GET_CURRENT_CONTEXT(ctx);
1390 _mesa_compile_error(ctx, GL_INVALID_OPERATION, "Recursive glBegin");
1394 static void GLAPIENTRY
1395 _save_PrimitiveRestartNV(void)
1397 GET_CURRENT_CONTEXT(ctx);
1398 struct vbo_save_context *save = &vbo_context(ctx)->save;
1400 if (save->prim_count == 0) {
1401 /* We're not inside a glBegin/End pair, so calling glPrimitiverRestartNV
1404 _mesa_compile_error(ctx, GL_INVALID_OPERATION,
1405 "glPrimitiveRestartNV called outside glBegin/End");
1407 /* get current primitive mode */
1408 GLenum curPrim = save->prims[save->prim_count - 1].mode;
1409 bool no_current_update = save->no_current_update;
1411 /* restart primitive */
1412 CALL_End(ctx->CurrentServerDispatch, ());
1413 vbo_save_NotifyBegin(ctx, curPrim, no_current_update);
1418 /* Unlike the functions above, these are to be hooked into the vtxfmt
1419 * maintained in ctx->ListState, active when the list is known or
1420 * suspected to be outside any begin/end primitive.
1421 * Note: OBE = Outside Begin/End
1423 static void GLAPIENTRY
1424 _save_OBE_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
1426 GET_CURRENT_CONTEXT(ctx);
1427 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1429 vbo_save_NotifyBegin(ctx, GL_QUADS, false);
1430 CALL_Vertex2f(dispatch, (x1, y1));
1431 CALL_Vertex2f(dispatch, (x2, y1));
1432 CALL_Vertex2f(dispatch, (x2, y2));
1433 CALL_Vertex2f(dispatch, (x1, y2));
1434 CALL_End(dispatch, ());
1438 static void GLAPIENTRY
1439 _save_OBE_Rectd(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2)
1441 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1444 static void GLAPIENTRY
1445 _save_OBE_Rectdv(const GLdouble *v1, const GLdouble *v2)
1447 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1450 static void GLAPIENTRY
1451 _save_OBE_Rectfv(const GLfloat *v1, const GLfloat *v2)
1453 _save_OBE_Rectf(v1[0], v1[1], v2[0], v2[1]);
1456 static void GLAPIENTRY
1457 _save_OBE_Recti(GLint x1, GLint y1, GLint x2, GLint y2)
1459 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1462 static void GLAPIENTRY
1463 _save_OBE_Rectiv(const GLint *v1, const GLint *v2)
1465 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1468 static void GLAPIENTRY
1469 _save_OBE_Rects(GLshort x1, GLshort y1, GLshort x2, GLshort y2)
1471 _save_OBE_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2);
1474 static void GLAPIENTRY
1475 _save_OBE_Rectsv(const GLshort *v1, const GLshort *v2)
1477 _save_OBE_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]);
1481 _ensure_draws_fits_in_storage(struct gl_context *ctx, int primcount, int vertcount)
1483 struct vbo_save_context *save = &vbo_context(ctx)->save;
1485 bool realloc_prim = save->prim_count + primcount > save->prim_max;
1486 bool realloc_vert = save->vertex_size && (save->vert_count + vertcount >= save->max_vert);
1488 if (realloc_prim || realloc_vert) {
1489 if (save->vert_count || save->prim_count)
1490 compile_vertex_list(ctx);
1491 realloc_storage(ctx, realloc_prim ? primcount : -1, realloc_vert ? vertcount : -1);
1492 reset_counters(ctx);
1493 assert(save->prim_max);
1498 static void GLAPIENTRY
1499 _save_OBE_DrawArrays(GLenum mode, GLint start, GLsizei count)
1501 GET_CURRENT_CONTEXT(ctx);
1502 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1503 struct vbo_save_context *save = &vbo_context(ctx)->save;
1506 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1507 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)");
1511 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawArrays(count<0)");
1515 if (save->out_of_memory)
1518 _ensure_draws_fits_in_storage(ctx, 1, count);
1520 /* Make sure to process any VBO binding changes */
1521 _mesa_update_state(ctx);
1523 _mesa_vao_map_arrays(ctx, vao, GL_MAP_READ_BIT);
1525 vbo_save_NotifyBegin(ctx, mode, true);
1527 for (i = 0; i < count; i++)
1528 _mesa_array_element(ctx, start + i);
1529 CALL_End(ctx->CurrentServerDispatch, ());
1531 _mesa_vao_unmap_arrays(ctx, vao);
1535 static void GLAPIENTRY
1536 _save_OBE_MultiDrawArrays(GLenum mode, const GLint *first,
1537 const GLsizei *count, GLsizei primcount)
1539 GET_CURRENT_CONTEXT(ctx);
1542 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1543 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMultiDrawArrays(mode)");
1547 if (primcount < 0) {
1548 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1549 "glMultiDrawArrays(primcount<0)");
1553 unsigned vertcount = 0;
1554 for (i = 0; i < primcount; i++) {
1556 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1557 "glMultiDrawArrays(count[i]<0)");
1560 vertcount += count[i];
1563 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1565 for (i = 0; i < primcount; i++) {
1567 _save_OBE_DrawArrays(mode, first[i], count[i]);
1574 array_element(struct gl_context *ctx,
1575 GLint basevertex, GLuint elt, unsigned index_size_shift)
1577 /* Section 10.3.5 Primitive Restart:
1579 * When one of the *BaseVertex drawing commands specified in section 10.5
1580 * is used, the primitive restart comparison occurs before the basevertex
1581 * offset is added to the array index.
1583 /* If PrimitiveRestart is enabled and the index is the RestartIndex
1584 * then we call PrimitiveRestartNV and return.
1586 if (ctx->Array._PrimitiveRestart[index_size_shift] &&
1587 elt == ctx->Array._RestartIndex[index_size_shift]) {
1588 CALL_PrimitiveRestartNV(ctx->CurrentServerDispatch, ());
1592 _mesa_array_element(ctx, basevertex + elt);
1596 /* Could do better by copying the arrays and element list intact and
1597 * then emitting an indexed prim at runtime.
1599 static void GLAPIENTRY
1600 _save_OBE_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
1601 const GLvoid * indices, GLint basevertex)
1603 GET_CURRENT_CONTEXT(ctx);
1604 struct vbo_save_context *save = &vbo_context(ctx)->save;
1605 struct gl_vertex_array_object *vao = ctx->Array.VAO;
1606 struct gl_buffer_object *indexbuf = vao->IndexBufferObj;
1609 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1610 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawElements(mode)");
1614 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1617 if (type != GL_UNSIGNED_BYTE &&
1618 type != GL_UNSIGNED_SHORT &&
1619 type != GL_UNSIGNED_INT) {
1620 _mesa_compile_error(ctx, GL_INVALID_VALUE, "glDrawElements(count<0)");
1624 if (save->out_of_memory)
1627 _ensure_draws_fits_in_storage(ctx, 1, count);
1629 /* Make sure to process any VBO binding changes */
1630 _mesa_update_state(ctx);
1632 _mesa_vao_map(ctx, vao, GL_MAP_READ_BIT);
1636 ADD_POINTERS(indexbuf->Mappings[MAP_INTERNAL].Pointer, indices);
1638 vbo_save_NotifyBegin(ctx, mode, true);
1641 case GL_UNSIGNED_BYTE:
1642 for (i = 0; i < count; i++)
1643 array_element(ctx, basevertex, ((GLubyte *) indices)[i], 0);
1645 case GL_UNSIGNED_SHORT:
1646 for (i = 0; i < count; i++)
1647 array_element(ctx, basevertex, ((GLushort *) indices)[i], 1);
1649 case GL_UNSIGNED_INT:
1650 for (i = 0; i < count; i++)
1651 array_element(ctx, basevertex, ((GLuint *) indices)[i], 2);
1654 _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)");
1658 CALL_End(ctx->CurrentServerDispatch, ());
1660 _mesa_vao_unmap(ctx, vao);
1663 static void GLAPIENTRY
1664 _save_OBE_DrawElements(GLenum mode, GLsizei count, GLenum type,
1665 const GLvoid * indices)
1667 _save_OBE_DrawElementsBaseVertex(mode, count, type, indices, 0);
1671 static void GLAPIENTRY
1672 _save_OBE_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
1673 GLsizei count, GLenum type,
1674 const GLvoid * indices)
1676 GET_CURRENT_CONTEXT(ctx);
1677 struct vbo_save_context *save = &vbo_context(ctx)->save;
1679 if (!_mesa_is_valid_prim_mode(ctx, mode)) {
1680 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)");
1684 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1685 "glDrawRangeElements(count<0)");
1688 if (type != GL_UNSIGNED_BYTE &&
1689 type != GL_UNSIGNED_SHORT &&
1690 type != GL_UNSIGNED_INT) {
1691 _mesa_compile_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(type)");
1695 _mesa_compile_error(ctx, GL_INVALID_VALUE,
1696 "glDrawRangeElements(end < start)");
1700 if (save->out_of_memory)
1703 _save_OBE_DrawElements(mode, count, type, indices);
1707 static void GLAPIENTRY
1708 _save_OBE_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type,
1709 const GLvoid * const *indices, GLsizei primcount)
1711 GET_CURRENT_CONTEXT(ctx);
1712 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1716 for (i = 0; i < primcount; i++) {
1717 vertcount += count[i];
1719 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1721 for (i = 0; i < primcount; i++) {
1723 CALL_DrawElements(dispatch, (mode, count[i], type, indices[i]));
1729 static void GLAPIENTRY
1730 _save_OBE_MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count,
1732 const GLvoid * const *indices,
1734 const GLint *basevertex)
1736 GET_CURRENT_CONTEXT(ctx);
1737 struct _glapi_table *dispatch = ctx->CurrentServerDispatch;
1741 for (i = 0; i < primcount; i++) {
1742 vertcount += count[i];
1744 _ensure_draws_fits_in_storage(ctx, primcount, vertcount);
1746 for (i = 0; i < primcount; i++) {
1748 CALL_DrawElementsBaseVertex(dispatch, (mode, count[i], type,
1757 vtxfmt_init(struct gl_context *ctx)
1759 struct vbo_save_context *save = &vbo_context(ctx)->save;
1760 GLvertexformat *vfmt = &save->vtxfmt;
1762 #define NAME_AE(x) _ae_##x
1763 #define NAME_CALLLIST(x) _save_##x
1764 #define NAME(x) _save_##x
1765 #define NAME_ES(x) _save_##x##ARB
1767 #include "vbo_init_tmp.h"
1772 * Initialize the dispatch table with the VBO functions for display
1776 vbo_initialize_save_dispatch(const struct gl_context *ctx,
1777 struct _glapi_table *exec)
1779 SET_DrawArrays(exec, _save_OBE_DrawArrays);
1780 SET_MultiDrawArrays(exec, _save_OBE_MultiDrawArrays);
1781 SET_DrawElements(exec, _save_OBE_DrawElements);
1782 SET_DrawElementsBaseVertex(exec, _save_OBE_DrawElementsBaseVertex);
1783 SET_DrawRangeElements(exec, _save_OBE_DrawRangeElements);
1784 SET_MultiDrawElementsEXT(exec, _save_OBE_MultiDrawElements);
1785 SET_MultiDrawElementsBaseVertex(exec, _save_OBE_MultiDrawElementsBaseVertex);
1786 SET_Rectf(exec, _save_OBE_Rectf);
1787 SET_Rectd(exec, _save_OBE_Rectd);
1788 SET_Rectdv(exec, _save_OBE_Rectdv);
1789 SET_Rectfv(exec, _save_OBE_Rectfv);
1790 SET_Recti(exec, _save_OBE_Recti);
1791 SET_Rectiv(exec, _save_OBE_Rectiv);
1792 SET_Rects(exec, _save_OBE_Rects);
1793 SET_Rectsv(exec, _save_OBE_Rectsv);
1795 /* Note: other glDraw functins aren't compiled into display lists */
1801 vbo_save_SaveFlushVertices(struct gl_context *ctx)
1803 struct vbo_save_context *save = &vbo_context(ctx)->save;
1805 /* Noop when we are actually active:
1807 if (ctx->Driver.CurrentSavePrimitive <= PRIM_MAX)
1810 if (save->vert_count || save->prim_count)
1811 compile_vertex_list(ctx);
1813 copy_to_current(ctx);
1815 reset_counters(ctx);
1816 ctx->Driver.SaveNeedFlush = GL_FALSE;
1821 * Called from glNewList when we're starting to compile a display list.
1824 vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode)
1826 struct vbo_save_context *save = &vbo_context(ctx)->save;
1831 if (!save->prim_store)
1832 save->prim_store = alloc_prim_store(0);
1834 if (!save->vertex_store)
1835 save->vertex_store = alloc_vertex_store(ctx, 0);
1837 save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
1840 reset_counters(ctx);
1841 ctx->Driver.SaveNeedFlush = GL_FALSE;
1846 * Called from glEndList when we're finished compiling a display list.
1849 vbo_save_EndList(struct gl_context *ctx)
1851 struct vbo_save_context *save = &vbo_context(ctx)->save;
1853 /* EndList called inside a (saved) Begin/End pair?
1855 if (_mesa_inside_dlist_begin_end(ctx)) {
1856 if (save->prim_count > 0) {
1857 GLint i = save->prim_count - 1;
1858 ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
1859 save->prims[i].end = 0;
1860 save->prims[i].count = save->vert_count - save->prims[i].start;
1863 /* Make sure this vertex list gets replayed by the "loopback"
1866 save->dangling_attr_ref = GL_TRUE;
1867 vbo_save_SaveFlushVertices(ctx);
1869 /* Swap out this vertex format while outside begin/end. Any color,
1870 * etc. received between here and the next begin will be compiled
1873 _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
1876 vbo_save_unmap_vertex_store(ctx, save->vertex_store);
1878 assert(save->vertex_size == 0);
1883 * Called from the display list code when we're about to execute a
1887 vbo_save_BeginCallList(struct gl_context *ctx, struct gl_display_list *dlist)
1889 struct vbo_save_context *save = &vbo_context(ctx)->save;
1890 save->replay_flags |= dlist->Flags;
1895 * Called from the display list code when we're finished executing a
1899 vbo_save_EndCallList(struct gl_context *ctx)
1901 struct vbo_save_context *save = &vbo_context(ctx)->save;
1903 if (ctx->ListState.CallDepth == 1)
1904 save->replay_flags = 0;
1909 * Called by display list code when a display list is being deleted.
1912 vbo_destroy_vertex_list(struct gl_context *ctx, void *data)
1914 struct vbo_save_vertex_list *node = (struct vbo_save_vertex_list *) data;
1916 for (gl_vertex_processing_mode vpm = VP_MODE_FF; vpm < VP_MODE_MAX; ++vpm)
1917 _mesa_reference_vao(ctx, &node->VAO[vpm], NULL);
1919 if (--node->prim_store->refcount == 0) {
1920 free(node->prim_store->prims);
1921 free(node->prim_store);
1924 free(node->merged.prims);
1926 _mesa_reference_buffer_object(ctx, &node->merged.ib.obj, NULL);
1927 free(node->current_data);
1928 node->current_data = NULL;
1933 vbo_print_vertex_list(struct gl_context *ctx, void *data, FILE *f)
1935 struct vbo_save_vertex_list *node = (struct vbo_save_vertex_list *) data;
1937 struct gl_buffer_object *buffer = node->VAO[0]->BufferBinding[0].BufferObj;
1938 const GLuint vertex_size = _vbo_save_get_stride(node)/sizeof(GLfloat);
1941 fprintf(f, "VBO-VERTEX-LIST, %u vertices, %d primitives, %d vertsize, "
1943 node->vertex_count, node->prim_count, vertex_size,
1946 for (i = 0; i < node->prim_count; i++) {
1947 struct _mesa_prim *prim = &node->prims[i];
1948 fprintf(f, " prim %d: %s %d..%d %s %s\n",
1950 _mesa_lookup_prim_by_nr(prim->mode),
1952 prim->start + prim->count,
1953 (prim->begin) ? "BEGIN" : "(wrap)",
1954 (prim->end) ? "END" : "(wrap)");
1960 * Called during context creation/init.
1963 current_init(struct gl_context *ctx)
1965 struct vbo_save_context *save = &vbo_context(ctx)->save;
1968 for (i = VBO_ATTRIB_POS; i <= VBO_ATTRIB_GENERIC15; i++) {
1969 const GLuint j = i - VBO_ATTRIB_POS;
1970 assert(j < VERT_ATTRIB_MAX);
1971 save->currentsz[i] = &ctx->ListState.ActiveAttribSize[j];
1972 save->current[i] = (fi_type *) ctx->ListState.CurrentAttrib[j];
1975 for (i = VBO_ATTRIB_FIRST_MATERIAL; i <= VBO_ATTRIB_LAST_MATERIAL; i++) {
1976 const GLuint j = i - VBO_ATTRIB_FIRST_MATERIAL;
1977 assert(j < MAT_ATTRIB_MAX);
1978 save->currentsz[i] = &ctx->ListState.ActiveMaterialSize[j];
1979 save->current[i] = (fi_type *) ctx->ListState.CurrentMaterial[j];
1985 * Initialize the display list compiler. Called during context creation.
1988 vbo_save_api_init(struct vbo_save_context *save)
1990 struct gl_context *ctx = gl_context_from_vbo_save(save);
1992 save->opcode_vertex_list =
1993 _mesa_dlist_alloc_opcode(ctx,
1994 sizeof(struct vbo_save_vertex_list),
1995 vbo_save_playback_vertex_list,
1996 vbo_destroy_vertex_list,
1997 vbo_print_vertex_list);
2001 _mesa_noop_vtxfmt_init(ctx, &save->vtxfmt_noop);