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      1 /**************************************************************************
      2 
      3 Copyright 2002-2008 Tungsten Graphics Inc., Cedar Park, Texas.
      4 
      5 All Rights Reserved.
      6 
      7 Permission is hereby granted, free of charge, to any person obtaining a
      8 copy of this software and associated documentation files (the "Software"),
      9 to deal in the Software without restriction, including without limitation
     10 on the rights to use, copy, modify, merge, publish, distribute, sub
     11 license, and/or sell copies of the Software, and to permit persons to whom
     12 the Software is furnished to do so, subject to the following conditions:
     13 
     14 The above copyright notice and this permission notice (including the next
     15 paragraph) shall be included in all copies or substantial portions of the
     16 Software.
     17 
     18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     20 FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     21 TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
     22 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
     23 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
     24 USE OR OTHER DEALINGS IN THE SOFTWARE.
     25 
     26 **************************************************************************/
     27 
     28 /*
     29  * Authors:
     30  *   Keith Whitwell <keith (at) tungstengraphics.com>
     31  */
     32 
     33 
     34 
     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
     38  * cached on hardware.
     39  *
     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,
     44  * End).
     45  *
     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.
     49  *
     50  * The other case where fixup is required is when a vertex attribute
     51  * is introduced in the middle of a primitive.  Eg:
     52  *  Begin(Lines)
     53  *  TexCoord1f()           Vertex2f()
     54  *  TexCoord1f() Color3f() Vertex2f()
     55  *  End()
     56  *
     57  *  If the current value of Color isn't known at compile-time, this
     58  *  primitive will require fixup.
     59  *
     60  *
     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.
     64  *
     65  * This could be improved to fallback only when a mix of EvalCoord and
     66  * Vertex commands are issued within a single primitive.
     67  */
     68 
     69 
     70 #include "main/glheader.h"
     71 #include "main/bufferobj.h"
     72 #include "main/context.h"
     73 #include "main/dlist.h"
     74 #include "main/enums.h"
     75 #include "main/eval.h"
     76 #include "main/macros.h"
     77 #include "main/mfeatures.h"
     78 #include "main/api_validate.h"
     79 #include "main/api_arrayelt.h"
     80 #include "main/vtxfmt.h"
     81 #include "main/dispatch.h"
     82 
     83 #include "vbo_context.h"
     84 #include "vbo_noop.h"
     85 
     86 
     87 #if FEATURE_dlist
     88 
     89 
     90 #ifdef ERROR
     91 #undef ERROR
     92 #endif
     93 
     94 
     95 /* An interesting VBO number/name to help with debugging */
     96 #define VBO_BUF_ID  12345
     97 
     98 
     99 /*
    100  * NOTE: Old 'parity' issue is gone, but copying can still be
    101  * wrong-footed on replay.
    102  */
    103 static GLuint
    104 _save_copy_vertices(struct gl_context *ctx,
    105                     const struct vbo_save_vertex_list *node,
    106                     const GLfloat * src_buffer)
    107 {
    108    struct vbo_save_context *save = &vbo_context(ctx)->save;
    109    const struct _mesa_prim *prim = &node->prim[node->prim_count - 1];
    110    GLuint nr = prim->count;
    111    GLuint sz = save->vertex_size;
    112    const GLfloat *src = src_buffer + prim->start * sz;
    113    GLfloat *dst = save->copied.buffer;
    114    GLuint ovf, i;
    115 
    116    if (prim->end)
    117       return 0;
    118 
    119    switch (prim->mode) {
    120    case GL_POINTS:
    121       return 0;
    122    case GL_LINES:
    123       ovf = nr & 1;
    124       for (i = 0; i < ovf; i++)
    125          memcpy(dst + i * sz, src + (nr - ovf + i) * sz,
    126                 sz * sizeof(GLfloat));
    127       return i;
    128    case GL_TRIANGLES:
    129       ovf = nr % 3;
    130       for (i = 0; i < ovf; i++)
    131          memcpy(dst + i * sz, src + (nr - ovf + i) * sz,
    132                 sz * sizeof(GLfloat));
    133       return i;
    134    case GL_QUADS:
    135       ovf = nr & 3;
    136       for (i = 0; i < ovf; i++)
    137          memcpy(dst + i * sz, src + (nr - ovf + i) * sz,
    138                 sz * sizeof(GLfloat));
    139       return i;
    140    case GL_LINE_STRIP:
    141       if (nr == 0)
    142          return 0;
    143       else {
    144          memcpy(dst, src + (nr - 1) * sz, sz * sizeof(GLfloat));
    145          return 1;
    146       }
    147    case GL_LINE_LOOP:
    148    case GL_TRIANGLE_FAN:
    149    case GL_POLYGON:
    150       if (nr == 0)
    151          return 0;
    152       else if (nr == 1) {
    153          memcpy(dst, src + 0, sz * sizeof(GLfloat));
    154          return 1;
    155       }
    156       else {
    157          memcpy(dst, src + 0, sz * sizeof(GLfloat));
    158          memcpy(dst + sz, src + (nr - 1) * sz, sz * sizeof(GLfloat));
    159          return 2;
    160       }
    161    case GL_TRIANGLE_STRIP:
    162    case GL_QUAD_STRIP:
    163       switch (nr) {
    164       case 0:
    165          ovf = 0;
    166          break;
    167       case 1:
    168          ovf = 1;
    169          break;
    170       default:
    171          ovf = 2 + (nr & 1);
    172          break;
    173       }
    174       for (i = 0; i < ovf; i++)
    175          memcpy(dst + i * sz, src + (nr - ovf + i) * sz,
    176                 sz * sizeof(GLfloat));
    177       return i;
    178    default:
    179       assert(0);
    180       return 0;
    181    }
    182 }
    183 
    184 
    185 static struct vbo_save_vertex_store *
    186 alloc_vertex_store(struct gl_context *ctx)
    187 {
    188    struct vbo_save_context *save = &vbo_context(ctx)->save;
    189    struct vbo_save_vertex_store *vertex_store =
    190       CALLOC_STRUCT(vbo_save_vertex_store);
    191 
    192    /* obj->Name needs to be non-zero, but won't ever be examined more
    193     * closely than that.  In particular these buffers won't be entered
    194     * into the hash and can never be confused with ones visible to the
    195     * user.  Perhaps there could be a special number for internal
    196     * buffers:
    197     */
    198    vertex_store->bufferobj = ctx->Driver.NewBufferObject(ctx,
    199                                                          VBO_BUF_ID,
    200                                                          GL_ARRAY_BUFFER_ARB);
    201    if (vertex_store->bufferobj) {
    202       save->out_of_memory =
    203          !ctx->Driver.BufferData(ctx,
    204                                  GL_ARRAY_BUFFER_ARB,
    205                                  VBO_SAVE_BUFFER_SIZE * sizeof(GLfloat),
    206                                  NULL, GL_STATIC_DRAW_ARB,
    207                                  vertex_store->bufferobj);
    208    }
    209    else {
    210       save->out_of_memory = GL_TRUE;
    211    }
    212 
    213    if (save->out_of_memory) {
    214       _mesa_error(ctx, GL_OUT_OF_MEMORY, "internal VBO allocation");
    215       _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
    216    }
    217 
    218    vertex_store->buffer = NULL;
    219    vertex_store->used = 0;
    220    vertex_store->refcount = 1;
    221 
    222    return vertex_store;
    223 }
    224 
    225 
    226 static void
    227 free_vertex_store(struct gl_context *ctx,
    228                   struct vbo_save_vertex_store *vertex_store)
    229 {
    230    assert(!vertex_store->buffer);
    231 
    232    if (vertex_store->bufferobj) {
    233       _mesa_reference_buffer_object(ctx, &vertex_store->bufferobj, NULL);
    234    }
    235 
    236    FREE(vertex_store);
    237 }
    238 
    239 
    240 GLfloat *
    241 vbo_save_map_vertex_store(struct gl_context *ctx,
    242                           struct vbo_save_vertex_store *vertex_store)
    243 {
    244    assert(vertex_store->bufferobj);
    245    assert(!vertex_store->buffer);
    246    if (vertex_store->bufferobj->Size > 0) {
    247       vertex_store->buffer =
    248          (GLfloat *) ctx->Driver.MapBufferRange(ctx, 0,
    249                                                 vertex_store->bufferobj->Size,
    250                                                 GL_MAP_WRITE_BIT,  /* not used */
    251                                                 vertex_store->bufferobj);
    252       assert(vertex_store->buffer);
    253       return vertex_store->buffer + vertex_store->used;
    254    }
    255    else {
    256       /* probably ran out of memory for buffers */
    257       return NULL;
    258    }
    259 }
    260 
    261 
    262 void
    263 vbo_save_unmap_vertex_store(struct gl_context *ctx,
    264                             struct vbo_save_vertex_store *vertex_store)
    265 {
    266    if (vertex_store->bufferobj->Size > 0) {
    267       ctx->Driver.UnmapBuffer(ctx, vertex_store->bufferobj);
    268    }
    269    vertex_store->buffer = NULL;
    270 }
    271 
    272 
    273 static struct vbo_save_primitive_store *
    274 alloc_prim_store(struct gl_context *ctx)
    275 {
    276    struct vbo_save_primitive_store *store =
    277       CALLOC_STRUCT(vbo_save_primitive_store);
    278    (void) ctx;
    279    store->used = 0;
    280    store->refcount = 1;
    281    return store;
    282 }
    283 
    284 
    285 static void
    286 _save_reset_counters(struct gl_context *ctx)
    287 {
    288    struct vbo_save_context *save = &vbo_context(ctx)->save;
    289 
    290    save->prim = save->prim_store->buffer + save->prim_store->used;
    291    save->buffer = save->vertex_store->buffer + save->vertex_store->used;
    292 
    293    assert(save->buffer == save->buffer_ptr);
    294 
    295    if (save->vertex_size)
    296       save->max_vert = ((VBO_SAVE_BUFFER_SIZE - save->vertex_store->used) /
    297                         save->vertex_size);
    298    else
    299       save->max_vert = 0;
    300 
    301    save->vert_count = 0;
    302    save->prim_count = 0;
    303    save->prim_max = VBO_SAVE_PRIM_SIZE - save->prim_store->used;
    304    save->dangling_attr_ref = 0;
    305 }
    306 
    307 
    308 /**
    309  * Insert the active immediate struct onto the display list currently
    310  * being built.
    311  */
    312 static void
    313 _save_compile_vertex_list(struct gl_context *ctx)
    314 {
    315    struct vbo_save_context *save = &vbo_context(ctx)->save;
    316    struct vbo_save_vertex_list *node;
    317 
    318    /* Allocate space for this structure in the display list currently
    319     * being compiled.
    320     */
    321    node = (struct vbo_save_vertex_list *)
    322       _mesa_dlist_alloc(ctx, save->opcode_vertex_list, sizeof(*node));
    323 
    324    if (!node)
    325       return;
    326 
    327    /* Duplicate our template, increment refcounts to the storage structs:
    328     */
    329    memcpy(node->attrsz, save->attrsz, sizeof(node->attrsz));
    330    memcpy(node->attrtype, save->attrtype, sizeof(node->attrtype));
    331    node->vertex_size = save->vertex_size;
    332    node->buffer_offset =
    333       (save->buffer - save->vertex_store->buffer) * sizeof(GLfloat);
    334    node->count = save->vert_count;
    335    node->wrap_count = save->copied.nr;
    336    node->dangling_attr_ref = save->dangling_attr_ref;
    337    node->prim = save->prim;
    338    node->prim_count = save->prim_count;
    339    node->vertex_store = save->vertex_store;
    340    node->prim_store = save->prim_store;
    341 
    342    node->vertex_store->refcount++;
    343    node->prim_store->refcount++;
    344 
    345    if (node->prim[0].no_current_update) {
    346       node->current_size = 0;
    347       node->current_data = NULL;
    348    }
    349    else {
    350       node->current_size = node->vertex_size - node->attrsz[0];
    351       node->current_data = NULL;
    352 
    353       if (node->current_size) {
    354          /* If the malloc fails, we just pull the data out of the VBO
    355           * later instead.
    356           */
    357          node->current_data = MALLOC(node->current_size * sizeof(GLfloat));
    358          if (node->current_data) {
    359             const char *buffer = (const char *) save->vertex_store->buffer;
    360             unsigned attr_offset = node->attrsz[0] * sizeof(GLfloat);
    361             unsigned vertex_offset = 0;
    362 
    363             if (node->count)
    364                vertex_offset =
    365                   (node->count - 1) * node->vertex_size * sizeof(GLfloat);
    366 
    367             memcpy(node->current_data,
    368                    buffer + node->buffer_offset + vertex_offset + attr_offset,
    369                    node->current_size * sizeof(GLfloat));
    370          }
    371       }
    372    }
    373 
    374    assert(node->attrsz[VBO_ATTRIB_POS] != 0 || node->count == 0);
    375 
    376    if (save->dangling_attr_ref)
    377       ctx->ListState.CurrentList->Flags |= DLIST_DANGLING_REFS;
    378 
    379    save->vertex_store->used += save->vertex_size * node->count;
    380    save->prim_store->used += node->prim_count;
    381 
    382    /* Copy duplicated vertices
    383     */
    384    save->copied.nr = _save_copy_vertices(ctx, node, save->buffer);
    385 
    386    /* Deal with GL_COMPILE_AND_EXECUTE:
    387     */
    388    if (ctx->ExecuteFlag) {
    389       struct _glapi_table *dispatch = GET_DISPATCH();
    390 
    391       _glapi_set_dispatch(ctx->Exec);
    392 
    393       vbo_loopback_vertex_list(ctx,
    394                                (const GLfloat *) ((const char *) save->
    395                                                   vertex_store->buffer +
    396                                                   node->buffer_offset),
    397                                node->attrsz, node->prim, node->prim_count,
    398                                node->wrap_count, node->vertex_size);
    399 
    400       _glapi_set_dispatch(dispatch);
    401    }
    402 
    403    /* Decide whether the storage structs are full, or can be used for
    404     * the next vertex lists as well.
    405     */
    406    if (save->vertex_store->used >
    407        VBO_SAVE_BUFFER_SIZE - 16 * (save->vertex_size + 4)) {
    408 
    409       /* Unmap old store:
    410        */
    411       vbo_save_unmap_vertex_store(ctx, save->vertex_store);
    412 
    413       /* Release old reference:
    414        */
    415       save->vertex_store->refcount--;
    416       assert(save->vertex_store->refcount != 0);
    417       save->vertex_store = NULL;
    418 
    419       /* Allocate and map new store:
    420        */
    421       save->vertex_store = alloc_vertex_store(ctx);
    422       save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
    423       save->out_of_memory = save->buffer_ptr == NULL;
    424    }
    425 
    426    if (save->prim_store->used > VBO_SAVE_PRIM_SIZE - 6) {
    427       save->prim_store->refcount--;
    428       assert(save->prim_store->refcount != 0);
    429       save->prim_store = alloc_prim_store(ctx);
    430    }
    431 
    432    /* Reset our structures for the next run of vertices:
    433     */
    434    _save_reset_counters(ctx);
    435 }
    436 
    437 
    438 /**
    439  * TODO -- If no new vertices have been stored, don't bother saving it.
    440  */
    441 static void
    442 _save_wrap_buffers(struct gl_context *ctx)
    443 {
    444    struct vbo_save_context *save = &vbo_context(ctx)->save;
    445    GLint i = save->prim_count - 1;
    446    GLenum mode;
    447    GLboolean weak;
    448    GLboolean no_current_update;
    449 
    450    assert(i < (GLint) save->prim_max);
    451    assert(i >= 0);
    452 
    453    /* Close off in-progress primitive.
    454     */
    455    save->prim[i].count = (save->vert_count - save->prim[i].start);
    456    mode = save->prim[i].mode;
    457    weak = save->prim[i].weak;
    458    no_current_update = save->prim[i].no_current_update;
    459 
    460    /* store the copied vertices, and allocate a new list.
    461     */
    462    _save_compile_vertex_list(ctx);
    463 
    464    /* Restart interrupted primitive
    465     */
    466    save->prim[0].mode = mode;
    467    save->prim[0].weak = weak;
    468    save->prim[0].no_current_update = no_current_update;
    469    save->prim[0].begin = 0;
    470    save->prim[0].end = 0;
    471    save->prim[0].pad = 0;
    472    save->prim[0].start = 0;
    473    save->prim[0].count = 0;
    474    save->prim[0].num_instances = 1;
    475    save->prim[0].base_instance = 0;
    476    save->prim_count = 1;
    477 }
    478 
    479 
    480 /**
    481  * Called only when buffers are wrapped as the result of filling the
    482  * vertex_store struct.
    483  */
    484 static void
    485 _save_wrap_filled_vertex(struct gl_context *ctx)
    486 {
    487    struct vbo_save_context *save = &vbo_context(ctx)->save;
    488    GLfloat *data = save->copied.buffer;
    489    GLuint i;
    490 
    491    /* Emit a glEnd to close off the last vertex list.
    492     */
    493    _save_wrap_buffers(ctx);
    494 
    495    /* Copy stored stored vertices to start of new list.
    496     */
    497    assert(save->max_vert - save->vert_count > save->copied.nr);
    498 
    499    for (i = 0; i < save->copied.nr; i++) {
    500       memcpy(save->buffer_ptr, data, save->vertex_size * sizeof(GLfloat));
    501       data += save->vertex_size;
    502       save->buffer_ptr += save->vertex_size;
    503       save->vert_count++;
    504    }
    505 }
    506 
    507 
    508 static void
    509 _save_copy_to_current(struct gl_context *ctx)
    510 {
    511    struct vbo_save_context *save = &vbo_context(ctx)->save;
    512    GLuint i;
    513 
    514    for (i = VBO_ATTRIB_POS + 1; i < VBO_ATTRIB_MAX; i++) {
    515       if (save->attrsz[i]) {
    516          save->currentsz[i][0] = save->attrsz[i];
    517          COPY_CLEAN_4V_TYPE_AS_FLOAT(save->current[i], save->attrsz[i],
    518                                      save->attrptr[i], save->attrtype[i]);
    519       }
    520    }
    521 }
    522 
    523 
    524 static void
    525 _save_copy_from_current(struct gl_context *ctx)
    526 {
    527    struct vbo_save_context *save = &vbo_context(ctx)->save;
    528    GLint i;
    529 
    530    for (i = VBO_ATTRIB_POS + 1; i < VBO_ATTRIB_MAX; i++) {
    531       switch (save->attrsz[i]) {
    532       case 4:
    533          save->attrptr[i][3] = save->current[i][3];
    534       case 3:
    535          save->attrptr[i][2] = save->current[i][2];
    536       case 2:
    537          save->attrptr[i][1] = save->current[i][1];
    538       case 1:
    539          save->attrptr[i][0] = save->current[i][0];
    540       case 0:
    541          break;
    542       }
    543    }
    544 }
    545 
    546 
    547 /* Flush existing data, set new attrib size, replay copied vertices.
    548  */
    549 static void
    550 _save_upgrade_vertex(struct gl_context *ctx, GLuint attr, GLuint newsz)
    551 {
    552    struct vbo_save_context *save = &vbo_context(ctx)->save;
    553    GLuint oldsz;
    554    GLuint i;
    555    GLfloat *tmp;
    556 
    557    /* Store the current run of vertices, and emit a GL_END.  Emit a
    558     * BEGIN in the new buffer.
    559     */
    560    if (save->vert_count)
    561       _save_wrap_buffers(ctx);
    562    else
    563       assert(save->copied.nr == 0);
    564 
    565    /* Do a COPY_TO_CURRENT to ensure back-copying works for the case
    566     * when the attribute already exists in the vertex and is having
    567     * its size increased.
    568     */
    569    _save_copy_to_current(ctx);
    570 
    571    /* Fix up sizes:
    572     */
    573    oldsz = save->attrsz[attr];
    574    save->attrsz[attr] = newsz;
    575 
    576    save->vertex_size += newsz - oldsz;
    577    save->max_vert = ((VBO_SAVE_BUFFER_SIZE - save->vertex_store->used) /
    578                      save->vertex_size);
    579    save->vert_count = 0;
    580 
    581    /* Recalculate all the attrptr[] values:
    582     */
    583    for (i = 0, tmp = save->vertex; i < VBO_ATTRIB_MAX; i++) {
    584       if (save->attrsz[i]) {
    585          save->attrptr[i] = tmp;
    586          tmp += save->attrsz[i];
    587       }
    588       else {
    589          save->attrptr[i] = NULL;       /* will not be dereferenced. */
    590       }
    591    }
    592 
    593    /* Copy from current to repopulate the vertex with correct values.
    594     */
    595    _save_copy_from_current(ctx);
    596 
    597    /* Replay stored vertices to translate them to new format here.
    598     *
    599     * If there are copied vertices and the new (upgraded) attribute
    600     * has not been defined before, this list is somewhat degenerate,
    601     * and will need fixup at runtime.
    602     */
    603    if (save->copied.nr) {
    604       GLfloat *data = save->copied.buffer;
    605       GLfloat *dest = save->buffer;
    606       GLuint j;
    607 
    608       /* Need to note this and fix up at runtime (or loopback):
    609        */
    610       if (attr != VBO_ATTRIB_POS && save->currentsz[attr][0] == 0) {
    611          assert(oldsz == 0);
    612          save->dangling_attr_ref = GL_TRUE;
    613       }
    614 
    615       for (i = 0; i < save->copied.nr; i++) {
    616          for (j = 0; j < VBO_ATTRIB_MAX; j++) {
    617             if (save->attrsz[j]) {
    618                if (j == attr) {
    619                   if (oldsz) {
    620                      COPY_CLEAN_4V_TYPE_AS_FLOAT(dest, oldsz, data,
    621                                                  save->attrtype[j]);
    622                      data += oldsz;
    623                      dest += newsz;
    624                   }
    625                   else {
    626                      COPY_SZ_4V(dest, newsz, save->current[attr]);
    627                      dest += newsz;
    628                   }
    629                }
    630                else {
    631                   GLint sz = save->attrsz[j];
    632                   COPY_SZ_4V(dest, sz, data);
    633                   data += sz;
    634                   dest += sz;
    635                }
    636             }
    637          }
    638       }
    639 
    640       save->buffer_ptr = dest;
    641       save->vert_count += save->copied.nr;
    642    }
    643 }
    644 
    645 
    646 static void
    647 save_fixup_vertex(struct gl_context *ctx, GLuint attr, GLuint sz)
    648 {
    649    struct vbo_save_context *save = &vbo_context(ctx)->save;
    650 
    651    if (sz > save->attrsz[attr]) {
    652       /* New size is larger.  Need to flush existing vertices and get
    653        * an enlarged vertex format.
    654        */
    655       _save_upgrade_vertex(ctx, attr, sz);
    656    }
    657    else if (sz < save->active_sz[attr]) {
    658       GLuint i;
    659       const GLfloat *id = vbo_get_default_vals_as_float(save->attrtype[attr]);
    660 
    661       /* New size is equal or smaller - just need to fill in some
    662        * zeros.
    663        */
    664       for (i = sz; i <= save->attrsz[attr]; i++)
    665          save->attrptr[attr][i - 1] = id[i - 1];
    666    }
    667 
    668    save->active_sz[attr] = sz;
    669 }
    670 
    671 
    672 static void
    673 _save_reset_vertex(struct gl_context *ctx)
    674 {
    675    struct vbo_save_context *save = &vbo_context(ctx)->save;
    676    GLuint i;
    677 
    678    for (i = 0; i < VBO_ATTRIB_MAX; i++) {
    679       save->attrsz[i] = 0;
    680       save->active_sz[i] = 0;
    681    }
    682 
    683    save->vertex_size = 0;
    684 }
    685 
    686 
    687 
    688 #define ERROR(err)   _mesa_compile_error(ctx, err, __FUNCTION__);
    689 
    690 
    691 /* Only one size for each attribute may be active at once.  Eg. if
    692  * Color3f is installed/active, then Color4f may not be, even if the
    693  * vertex actually contains 4 color coordinates.  This is because the
    694  * 3f version won't otherwise set color[3] to 1.0 -- this is the job
    695  * of the chooser function when switching between Color4f and Color3f.
    696  */
    697 #define ATTR(A, N, T, V0, V1, V2, V3)				\
    698 do {								\
    699    struct vbo_save_context *save = &vbo_context(ctx)->save;	\
    700 								\
    701    if (save->active_sz[A] != N)					\
    702       save_fixup_vertex(ctx, A, N);				\
    703 								\
    704    {								\
    705       GLfloat *dest = save->attrptr[A];				\
    706       if (N>0) dest[0] = V0;					\
    707       if (N>1) dest[1] = V1;					\
    708       if (N>2) dest[2] = V2;					\
    709       if (N>3) dest[3] = V3;					\
    710       save->attrtype[A] = T;                                    \
    711    }								\
    712 								\
    713    if ((A) == 0) {						\
    714       GLuint i;							\
    715 								\
    716       for (i = 0; i < save->vertex_size; i++)			\
    717 	 save->buffer_ptr[i] = save->vertex[i];			\
    718 								\
    719       save->buffer_ptr += save->vertex_size;			\
    720 								\
    721       if (++save->vert_count >= save->max_vert)			\
    722 	 _save_wrap_filled_vertex(ctx);				\
    723    }								\
    724 } while (0)
    725 
    726 #define TAG(x) _save_##x
    727 
    728 #include "vbo_attrib_tmp.h"
    729 
    730 
    731 
    732 #define MAT( ATTR, N, face, params )			\
    733 do {							\
    734    if (face != GL_BACK)					\
    735       MAT_ATTR( ATTR, N, params ); /* front */		\
    736    if (face != GL_FRONT)				\
    737       MAT_ATTR( ATTR + 1, N, params ); /* back */	\
    738 } while (0)
    739 
    740 
    741 /**
    742  * Save a glMaterial call found between glBegin/End.
    743  * glMaterial calls outside Begin/End are handled in dlist.c.
    744  */
    745 static void GLAPIENTRY
    746 _save_Materialfv(GLenum face, GLenum pname, const GLfloat *params)
    747 {
    748    GET_CURRENT_CONTEXT(ctx);
    749 
    750    if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
    751       _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(face)");
    752       return;
    753    }
    754 
    755    switch (pname) {
    756    case GL_EMISSION:
    757       MAT(VBO_ATTRIB_MAT_FRONT_EMISSION, 4, face, params);
    758       break;
    759    case GL_AMBIENT:
    760       MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
    761       break;
    762    case GL_DIFFUSE:
    763       MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
    764       break;
    765    case GL_SPECULAR:
    766       MAT(VBO_ATTRIB_MAT_FRONT_SPECULAR, 4, face, params);
    767       break;
    768    case GL_SHININESS:
    769       if (*params < 0 || *params > ctx->Const.MaxShininess) {
    770          _mesa_compile_error(ctx, GL_INVALID_VALUE, "glMaterial(shininess)");
    771       }
    772       else {
    773          MAT(VBO_ATTRIB_MAT_FRONT_SHININESS, 1, face, params);
    774       }
    775       break;
    776    case GL_COLOR_INDEXES:
    777       MAT(VBO_ATTRIB_MAT_FRONT_INDEXES, 3, face, params);
    778       break;
    779    case GL_AMBIENT_AND_DIFFUSE:
    780       MAT(VBO_ATTRIB_MAT_FRONT_AMBIENT, 4, face, params);
    781       MAT(VBO_ATTRIB_MAT_FRONT_DIFFUSE, 4, face, params);
    782       break;
    783    default:
    784       _mesa_compile_error(ctx, GL_INVALID_ENUM, "glMaterial(pname)");
    785       return;
    786    }
    787 }
    788 
    789 
    790 /* Cope with EvalCoord/CallList called within a begin/end object:
    791  *     -- Flush current buffer
    792  *     -- Fallback to opcodes for the rest of the begin/end object.
    793  */
    794 static void
    795 dlist_fallback(struct gl_context *ctx)
    796 {
    797    struct vbo_save_context *save = &vbo_context(ctx)->save;
    798 
    799    if (save->vert_count || save->prim_count) {
    800       if (save->prim_count > 0) {
    801          /* Close off in-progress primitive. */
    802          GLint i = save->prim_count - 1;
    803          save->prim[i].count = save->vert_count - save->prim[i].start;
    804       }
    805 
    806       /* Need to replay this display list with loopback,
    807        * unfortunately, otherwise this primitive won't be handled
    808        * properly:
    809        */
    810       save->dangling_attr_ref = 1;
    811 
    812       _save_compile_vertex_list(ctx);
    813    }
    814 
    815    _save_copy_to_current(ctx);
    816    _save_reset_vertex(ctx);
    817    _save_reset_counters(ctx);
    818    if (save->out_of_memory) {
    819       _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
    820    }
    821    else {
    822       _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
    823    }
    824    ctx->Driver.SaveNeedFlush = 0;
    825 }
    826 
    827 
    828 static void GLAPIENTRY
    829 _save_EvalCoord1f(GLfloat u)
    830 {
    831    GET_CURRENT_CONTEXT(ctx);
    832    dlist_fallback(ctx);
    833    CALL_EvalCoord1f(ctx->Save, (u));
    834 }
    835 
    836 static void GLAPIENTRY
    837 _save_EvalCoord1fv(const GLfloat * v)
    838 {
    839    GET_CURRENT_CONTEXT(ctx);
    840    dlist_fallback(ctx);
    841    CALL_EvalCoord1fv(ctx->Save, (v));
    842 }
    843 
    844 static void GLAPIENTRY
    845 _save_EvalCoord2f(GLfloat u, GLfloat v)
    846 {
    847    GET_CURRENT_CONTEXT(ctx);
    848    dlist_fallback(ctx);
    849    CALL_EvalCoord2f(ctx->Save, (u, v));
    850 }
    851 
    852 static void GLAPIENTRY
    853 _save_EvalCoord2fv(const GLfloat * v)
    854 {
    855    GET_CURRENT_CONTEXT(ctx);
    856    dlist_fallback(ctx);
    857    CALL_EvalCoord2fv(ctx->Save, (v));
    858 }
    859 
    860 static void GLAPIENTRY
    861 _save_EvalPoint1(GLint i)
    862 {
    863    GET_CURRENT_CONTEXT(ctx);
    864    dlist_fallback(ctx);
    865    CALL_EvalPoint1(ctx->Save, (i));
    866 }
    867 
    868 static void GLAPIENTRY
    869 _save_EvalPoint2(GLint i, GLint j)
    870 {
    871    GET_CURRENT_CONTEXT(ctx);
    872    dlist_fallback(ctx);
    873    CALL_EvalPoint2(ctx->Save, (i, j));
    874 }
    875 
    876 static void GLAPIENTRY
    877 _save_CallList(GLuint l)
    878 {
    879    GET_CURRENT_CONTEXT(ctx);
    880    dlist_fallback(ctx);
    881    CALL_CallList(ctx->Save, (l));
    882 }
    883 
    884 static void GLAPIENTRY
    885 _save_CallLists(GLsizei n, GLenum type, const GLvoid * v)
    886 {
    887    GET_CURRENT_CONTEXT(ctx);
    888    dlist_fallback(ctx);
    889    CALL_CallLists(ctx->Save, (n, type, v));
    890 }
    891 
    892 
    893 
    894 /* This begin is hooked into ...  Updating of
    895  * ctx->Driver.CurrentSavePrimitive is already taken care of.
    896  */
    897 GLboolean
    898 vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode)
    899 {
    900    struct vbo_save_context *save = &vbo_context(ctx)->save;
    901 
    902    GLuint i = save->prim_count++;
    903 
    904    assert(i < save->prim_max);
    905    save->prim[i].mode = mode & VBO_SAVE_PRIM_MODE_MASK;
    906    save->prim[i].begin = 1;
    907    save->prim[i].end = 0;
    908    save->prim[i].weak = (mode & VBO_SAVE_PRIM_WEAK) ? 1 : 0;
    909    save->prim[i].no_current_update =
    910       (mode & VBO_SAVE_PRIM_NO_CURRENT_UPDATE) ? 1 : 0;
    911    save->prim[i].pad = 0;
    912    save->prim[i].start = save->vert_count;
    913    save->prim[i].count = 0;
    914    save->prim[i].num_instances = 1;
    915    save->prim[i].base_instance = 0;
    916 
    917    if (save->out_of_memory) {
    918       _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
    919    }
    920    else {
    921       _mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
    922    }
    923    ctx->Driver.SaveNeedFlush = 1;
    924    return GL_TRUE;
    925 }
    926 
    927 
    928 static void GLAPIENTRY
    929 _save_End(void)
    930 {
    931    GET_CURRENT_CONTEXT(ctx);
    932    struct vbo_save_context *save = &vbo_context(ctx)->save;
    933    GLint i = save->prim_count - 1;
    934 
    935    ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
    936    save->prim[i].end = 1;
    937    save->prim[i].count = (save->vert_count - save->prim[i].start);
    938 
    939    if (i == (GLint) save->prim_max - 1) {
    940       _save_compile_vertex_list(ctx);
    941       assert(save->copied.nr == 0);
    942    }
    943 
    944    /* Swap out this vertex format while outside begin/end.  Any color,
    945     * etc. received between here and the next begin will be compiled
    946     * as opcodes.
    947     */
    948    if (save->out_of_memory) {
    949       _mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
    950    }
    951    else {
    952       _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
    953    }
    954 }
    955 
    956 
    957 /* These are all errors as this vtxfmt is only installed inside
    958  * begin/end pairs.
    959  */
    960 static void GLAPIENTRY
    961 _save_DrawElements(GLenum mode, GLsizei count, GLenum type,
    962                    const GLvoid * indices)
    963 {
    964    GET_CURRENT_CONTEXT(ctx);
    965    (void) mode;
    966    (void) count;
    967    (void) type;
    968    (void) indices;
    969    _mesa_compile_error(ctx, GL_INVALID_OPERATION, "glDrawElements");
    970 }
    971 
    972 
    973 static void GLAPIENTRY
    974 _save_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
    975                         GLsizei count, GLenum type, const GLvoid * indices)
    976 {
    977    GET_CURRENT_CONTEXT(ctx);
    978    (void) mode;
    979    (void) start;
    980    (void) end;
    981    (void) count;
    982    (void) type;
    983    (void) indices;
    984    _mesa_compile_error(ctx, GL_INVALID_OPERATION, "glDrawRangeElements");
    985 }
    986 
    987 
    988 static void GLAPIENTRY
    989 _save_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
    990                              const GLvoid * indices, GLint basevertex)
    991 {
    992    GET_CURRENT_CONTEXT(ctx);
    993    (void) mode;
    994    (void) count;
    995    (void) type;
    996    (void) indices;
    997    (void) basevertex;
    998    _mesa_compile_error(ctx, GL_INVALID_OPERATION, "glDrawElements");
    999 }
   1000 
   1001 
   1002 static void GLAPIENTRY
   1003 _save_DrawRangeElementsBaseVertex(GLenum mode,
   1004                                   GLuint start,
   1005                                   GLuint end,
   1006                                   GLsizei count,
   1007                                   GLenum type,
   1008                                   const GLvoid * indices, GLint basevertex)
   1009 {
   1010    GET_CURRENT_CONTEXT(ctx);
   1011    (void) mode;
   1012    (void) start;
   1013    (void) end;
   1014    (void) count;
   1015    (void) type;
   1016    (void) indices;
   1017    (void) basevertex;
   1018    _mesa_compile_error(ctx, GL_INVALID_OPERATION, "glDrawRangeElements");
   1019 }
   1020 
   1021 
   1022 static void GLAPIENTRY
   1023 _save_DrawArrays(GLenum mode, GLint start, GLsizei count)
   1024 {
   1025    GET_CURRENT_CONTEXT(ctx);
   1026    (void) mode;
   1027    (void) start;
   1028    (void) count;
   1029    _mesa_compile_error(ctx, GL_INVALID_OPERATION, "glDrawArrays");
   1030 }
   1031 
   1032 
   1033 static void GLAPIENTRY
   1034 _save_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type,
   1035                         const GLvoid **indices, GLsizei primcount)
   1036 {
   1037    GET_CURRENT_CONTEXT(ctx);
   1038    (void) mode;
   1039    (void) count;
   1040    (void) type;
   1041    (void) indices;
   1042    (void) primcount;
   1043    _mesa_compile_error(ctx, GL_INVALID_OPERATION, "glMultiDrawElements");
   1044 }
   1045 
   1046 
   1047 static void GLAPIENTRY
   1048 _save_MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count,
   1049                                   GLenum type, const GLvoid * const *indices,
   1050                                   GLsizei primcount, const GLint *basevertex)
   1051 {
   1052    GET_CURRENT_CONTEXT(ctx);
   1053    (void) mode;
   1054    (void) count;
   1055    (void) type;
   1056    (void) indices;
   1057    (void) primcount;
   1058    (void) basevertex;
   1059    _mesa_compile_error(ctx, GL_INVALID_OPERATION,
   1060                        "glMultiDrawElementsBaseVertex");
   1061 }
   1062 
   1063 
   1064 static void GLAPIENTRY
   1065 _save_DrawTransformFeedback(GLenum mode, GLuint name)
   1066 {
   1067    GET_CURRENT_CONTEXT(ctx);
   1068    (void) mode;
   1069    (void) name;
   1070    _mesa_compile_error(ctx, GL_INVALID_OPERATION, "glDrawTransformFeedback");
   1071 }
   1072 
   1073 
   1074 static void GLAPIENTRY
   1075 _save_DrawTransformFeedbackStream(GLenum mode, GLuint name, GLuint stream)
   1076 {
   1077    GET_CURRENT_CONTEXT(ctx);
   1078    (void) mode;
   1079    (void) name;
   1080    (void) stream;
   1081    _mesa_compile_error(ctx, GL_INVALID_OPERATION,
   1082                        "glDrawTransformFeedbackStream");
   1083 }
   1084 
   1085 
   1086 static void GLAPIENTRY
   1087 _save_DrawTransformFeedbackInstanced(GLenum mode, GLuint name,
   1088                                      GLsizei primcount)
   1089 {
   1090    GET_CURRENT_CONTEXT(ctx);
   1091    (void) mode;
   1092    (void) name;
   1093    (void) primcount;
   1094    _mesa_compile_error(ctx, GL_INVALID_OPERATION,
   1095                        "glDrawTransformFeedbackInstanced");
   1096 }
   1097 
   1098 
   1099 static void GLAPIENTRY
   1100 _save_DrawTransformFeedbackStreamInstanced(GLenum mode, GLuint name,
   1101                                            GLuint stream, GLsizei primcount)
   1102 {
   1103    GET_CURRENT_CONTEXT(ctx);
   1104    (void) mode;
   1105    (void) name;
   1106    (void) stream;
   1107    (void) primcount;
   1108    _mesa_compile_error(ctx, GL_INVALID_OPERATION,
   1109                        "glDrawTransformFeedbackStreamInstanced");
   1110 }
   1111 
   1112 
   1113 static void GLAPIENTRY
   1114 _save_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
   1115 {
   1116    GET_CURRENT_CONTEXT(ctx);
   1117    (void) x1;
   1118    (void) y1;
   1119    (void) x2;
   1120    (void) y2;
   1121    _mesa_compile_error(ctx, GL_INVALID_OPERATION, "glRectf");
   1122 }
   1123 
   1124 
   1125 static void GLAPIENTRY
   1126 _save_EvalMesh1(GLenum mode, GLint i1, GLint i2)
   1127 {
   1128    GET_CURRENT_CONTEXT(ctx);
   1129    (void) mode;
   1130    (void) i1;
   1131    (void) i2;
   1132    _mesa_compile_error(ctx, GL_INVALID_OPERATION, "glEvalMesh1");
   1133 }
   1134 
   1135 
   1136 static void GLAPIENTRY
   1137 _save_EvalMesh2(GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2)
   1138 {
   1139    GET_CURRENT_CONTEXT(ctx);
   1140    (void) mode;
   1141    (void) i1;
   1142    (void) i2;
   1143    (void) j1;
   1144    (void) j2;
   1145    _mesa_compile_error(ctx, GL_INVALID_OPERATION, "glEvalMesh2");
   1146 }
   1147 
   1148 
   1149 static void GLAPIENTRY
   1150 _save_Begin(GLenum mode)
   1151 {
   1152    GET_CURRENT_CONTEXT(ctx);
   1153    (void) mode;
   1154    _mesa_compile_error(ctx, GL_INVALID_OPERATION, "Recursive glBegin");
   1155 }
   1156 
   1157 
   1158 static void GLAPIENTRY
   1159 _save_PrimitiveRestartNV(void)
   1160 {
   1161    GLenum curPrim;
   1162    GET_CURRENT_CONTEXT(ctx);
   1163 
   1164    curPrim = ctx->Driver.CurrentSavePrimitive;
   1165 
   1166    _save_End();
   1167    _save_Begin(curPrim);
   1168 }
   1169 
   1170 
   1171 /* Unlike the functions above, these are to be hooked into the vtxfmt
   1172  * maintained in ctx->ListState, active when the list is known or
   1173  * suspected to be outside any begin/end primitive.
   1174  * Note: OBE = Outside Begin/End
   1175  */
   1176 static void GLAPIENTRY
   1177 _save_OBE_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
   1178 {
   1179    GET_CURRENT_CONTEXT(ctx);
   1180    vbo_save_NotifyBegin(ctx, GL_QUADS | VBO_SAVE_PRIM_WEAK);
   1181    CALL_Vertex2f(GET_DISPATCH(), (x1, y1));
   1182    CALL_Vertex2f(GET_DISPATCH(), (x2, y1));
   1183    CALL_Vertex2f(GET_DISPATCH(), (x2, y2));
   1184    CALL_Vertex2f(GET_DISPATCH(), (x1, y2));
   1185    CALL_End(GET_DISPATCH(), ());
   1186 }
   1187 
   1188 
   1189 static void GLAPIENTRY
   1190 _save_OBE_DrawArrays(GLenum mode, GLint start, GLsizei count)
   1191 {
   1192    GET_CURRENT_CONTEXT(ctx);
   1193    struct vbo_save_context *save = &vbo_context(ctx)->save;
   1194    GLint i;
   1195 
   1196    if (!_mesa_validate_DrawArrays(ctx, mode, start, count))
   1197       return;
   1198 
   1199    if (save->out_of_memory)
   1200       return;
   1201 
   1202    _ae_map_vbos(ctx);
   1203 
   1204    vbo_save_NotifyBegin(ctx, (mode | VBO_SAVE_PRIM_WEAK
   1205                               | VBO_SAVE_PRIM_NO_CURRENT_UPDATE));
   1206 
   1207    for (i = 0; i < count; i++)
   1208       CALL_ArrayElement(GET_DISPATCH(), (start + i));
   1209    CALL_End(GET_DISPATCH(), ());
   1210 
   1211    _ae_unmap_vbos(ctx);
   1212 }
   1213 
   1214 
   1215 /* Could do better by copying the arrays and element list intact and
   1216  * then emitting an indexed prim at runtime.
   1217  */
   1218 static void GLAPIENTRY
   1219 _save_OBE_DrawElements(GLenum mode, GLsizei count, GLenum type,
   1220                        const GLvoid * indices)
   1221 {
   1222    GET_CURRENT_CONTEXT(ctx);
   1223    struct vbo_save_context *save = &vbo_context(ctx)->save;
   1224    GLint i;
   1225 
   1226    if (!_mesa_validate_DrawElements(ctx, mode, count, type, indices, 0))
   1227       return;
   1228 
   1229    if (save->out_of_memory)
   1230       return;
   1231 
   1232    _ae_map_vbos(ctx);
   1233 
   1234    if (_mesa_is_bufferobj(ctx->Array.ArrayObj->ElementArrayBufferObj))
   1235       indices =
   1236          ADD_POINTERS(ctx->Array.ArrayObj->ElementArrayBufferObj->Pointer, indices);
   1237 
   1238    vbo_save_NotifyBegin(ctx, (mode | VBO_SAVE_PRIM_WEAK |
   1239                               VBO_SAVE_PRIM_NO_CURRENT_UPDATE));
   1240 
   1241    switch (type) {
   1242    case GL_UNSIGNED_BYTE:
   1243       for (i = 0; i < count; i++)
   1244          CALL_ArrayElement(GET_DISPATCH(), (((GLubyte *) indices)[i]));
   1245       break;
   1246    case GL_UNSIGNED_SHORT:
   1247       for (i = 0; i < count; i++)
   1248          CALL_ArrayElement(GET_DISPATCH(), (((GLushort *) indices)[i]));
   1249       break;
   1250    case GL_UNSIGNED_INT:
   1251       for (i = 0; i < count; i++)
   1252          CALL_ArrayElement(GET_DISPATCH(), (((GLuint *) indices)[i]));
   1253       break;
   1254    default:
   1255       _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)");
   1256       break;
   1257    }
   1258 
   1259    CALL_End(GET_DISPATCH(), ());
   1260 
   1261    _ae_unmap_vbos(ctx);
   1262 }
   1263 
   1264 
   1265 static void GLAPIENTRY
   1266 _save_OBE_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
   1267                             GLsizei count, GLenum type,
   1268                             const GLvoid * indices)
   1269 {
   1270    GET_CURRENT_CONTEXT(ctx);
   1271    struct vbo_save_context *save = &vbo_context(ctx)->save;
   1272 
   1273    if (!_mesa_validate_DrawRangeElements(ctx, mode,
   1274                                          start, end, count, type, indices, 0))
   1275       return;
   1276 
   1277    if (save->out_of_memory)
   1278       return;
   1279 
   1280    _save_OBE_DrawElements(mode, count, type, indices);
   1281 }
   1282 
   1283 
   1284 static void GLAPIENTRY
   1285 _save_OBE_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type,
   1286                             const GLvoid **indices, GLsizei primcount)
   1287 {
   1288    GLsizei i;
   1289 
   1290    for (i = 0; i < primcount; i++) {
   1291       if (count[i] > 0) {
   1292 	 CALL_DrawElements(GET_DISPATCH(), (mode, count[i], type, indices[i]));
   1293       }
   1294    }
   1295 }
   1296 
   1297 
   1298 static void GLAPIENTRY
   1299 _save_OBE_MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count,
   1300                                       GLenum type,
   1301                                       const GLvoid * const *indices,
   1302                                       GLsizei primcount,
   1303                                       const GLint *basevertex)
   1304 {
   1305    GLsizei i;
   1306 
   1307    for (i = 0; i < primcount; i++) {
   1308       if (count[i] > 0) {
   1309 	 CALL_DrawElementsBaseVertex(GET_DISPATCH(), (mode, count[i], type,
   1310 						      indices[i],
   1311 						      basevertex[i]));
   1312       }
   1313    }
   1314 }
   1315 
   1316 
   1317 static void
   1318 _save_vtxfmt_init(struct gl_context *ctx)
   1319 {
   1320    struct vbo_save_context *save = &vbo_context(ctx)->save;
   1321    GLvertexformat *vfmt = &save->vtxfmt;
   1322 
   1323    _MESA_INIT_ARRAYELT_VTXFMT(vfmt, _ae_);
   1324 
   1325    vfmt->Begin = _save_Begin;
   1326    vfmt->Color3f = _save_Color3f;
   1327    vfmt->Color3fv = _save_Color3fv;
   1328    vfmt->Color4f = _save_Color4f;
   1329    vfmt->Color4fv = _save_Color4fv;
   1330    vfmt->EdgeFlag = _save_EdgeFlag;
   1331    vfmt->End = _save_End;
   1332    vfmt->PrimitiveRestartNV = _save_PrimitiveRestartNV;
   1333    vfmt->FogCoordfEXT = _save_FogCoordfEXT;
   1334    vfmt->FogCoordfvEXT = _save_FogCoordfvEXT;
   1335    vfmt->Indexf = _save_Indexf;
   1336    vfmt->Indexfv = _save_Indexfv;
   1337    vfmt->Materialfv = _save_Materialfv;
   1338    vfmt->MultiTexCoord1fARB = _save_MultiTexCoord1f;
   1339    vfmt->MultiTexCoord1fvARB = _save_MultiTexCoord1fv;
   1340    vfmt->MultiTexCoord2fARB = _save_MultiTexCoord2f;
   1341    vfmt->MultiTexCoord2fvARB = _save_MultiTexCoord2fv;
   1342    vfmt->MultiTexCoord3fARB = _save_MultiTexCoord3f;
   1343    vfmt->MultiTexCoord3fvARB = _save_MultiTexCoord3fv;
   1344    vfmt->MultiTexCoord4fARB = _save_MultiTexCoord4f;
   1345    vfmt->MultiTexCoord4fvARB = _save_MultiTexCoord4fv;
   1346    vfmt->Normal3f = _save_Normal3f;
   1347    vfmt->Normal3fv = _save_Normal3fv;
   1348    vfmt->SecondaryColor3fEXT = _save_SecondaryColor3fEXT;
   1349    vfmt->SecondaryColor3fvEXT = _save_SecondaryColor3fvEXT;
   1350    vfmt->TexCoord1f = _save_TexCoord1f;
   1351    vfmt->TexCoord1fv = _save_TexCoord1fv;
   1352    vfmt->TexCoord2f = _save_TexCoord2f;
   1353    vfmt->TexCoord2fv = _save_TexCoord2fv;
   1354    vfmt->TexCoord3f = _save_TexCoord3f;
   1355    vfmt->TexCoord3fv = _save_TexCoord3fv;
   1356    vfmt->TexCoord4f = _save_TexCoord4f;
   1357    vfmt->TexCoord4fv = _save_TexCoord4fv;
   1358    vfmt->Vertex2f = _save_Vertex2f;
   1359    vfmt->Vertex2fv = _save_Vertex2fv;
   1360    vfmt->Vertex3f = _save_Vertex3f;
   1361    vfmt->Vertex3fv = _save_Vertex3fv;
   1362    vfmt->Vertex4f = _save_Vertex4f;
   1363    vfmt->Vertex4fv = _save_Vertex4fv;
   1364    vfmt->VertexAttrib1fARB = _save_VertexAttrib1fARB;
   1365    vfmt->VertexAttrib1fvARB = _save_VertexAttrib1fvARB;
   1366    vfmt->VertexAttrib2fARB = _save_VertexAttrib2fARB;
   1367    vfmt->VertexAttrib2fvARB = _save_VertexAttrib2fvARB;
   1368    vfmt->VertexAttrib3fARB = _save_VertexAttrib3fARB;
   1369    vfmt->VertexAttrib3fvARB = _save_VertexAttrib3fvARB;
   1370    vfmt->VertexAttrib4fARB = _save_VertexAttrib4fARB;
   1371    vfmt->VertexAttrib4fvARB = _save_VertexAttrib4fvARB;
   1372 
   1373    vfmt->VertexAttrib1fNV = _save_VertexAttrib1fNV;
   1374    vfmt->VertexAttrib1fvNV = _save_VertexAttrib1fvNV;
   1375    vfmt->VertexAttrib2fNV = _save_VertexAttrib2fNV;
   1376    vfmt->VertexAttrib2fvNV = _save_VertexAttrib2fvNV;
   1377    vfmt->VertexAttrib3fNV = _save_VertexAttrib3fNV;
   1378    vfmt->VertexAttrib3fvNV = _save_VertexAttrib3fvNV;
   1379    vfmt->VertexAttrib4fNV = _save_VertexAttrib4fNV;
   1380    vfmt->VertexAttrib4fvNV = _save_VertexAttrib4fvNV;
   1381 
   1382    /* integer-valued */
   1383    vfmt->VertexAttribI1i = _save_VertexAttribI1i;
   1384    vfmt->VertexAttribI2i = _save_VertexAttribI2i;
   1385    vfmt->VertexAttribI3i = _save_VertexAttribI3i;
   1386    vfmt->VertexAttribI4i = _save_VertexAttribI4i;
   1387    vfmt->VertexAttribI2iv = _save_VertexAttribI2iv;
   1388    vfmt->VertexAttribI3iv = _save_VertexAttribI3iv;
   1389    vfmt->VertexAttribI4iv = _save_VertexAttribI4iv;
   1390 
   1391    /* unsigned integer-valued */
   1392    vfmt->VertexAttribI1ui = _save_VertexAttribI1ui;
   1393    vfmt->VertexAttribI2ui = _save_VertexAttribI2ui;
   1394    vfmt->VertexAttribI3ui = _save_VertexAttribI3ui;
   1395    vfmt->VertexAttribI4ui = _save_VertexAttribI4ui;
   1396    vfmt->VertexAttribI2uiv = _save_VertexAttribI2uiv;
   1397    vfmt->VertexAttribI3uiv = _save_VertexAttribI3uiv;
   1398    vfmt->VertexAttribI4uiv = _save_VertexAttribI4uiv;
   1399 
   1400    vfmt->VertexP2ui = _save_VertexP2ui;
   1401    vfmt->VertexP3ui = _save_VertexP3ui;
   1402    vfmt->VertexP4ui = _save_VertexP4ui;
   1403    vfmt->VertexP2uiv = _save_VertexP2uiv;
   1404    vfmt->VertexP3uiv = _save_VertexP3uiv;
   1405    vfmt->VertexP4uiv = _save_VertexP4uiv;
   1406 
   1407    vfmt->TexCoordP1ui = _save_TexCoordP1ui;
   1408    vfmt->TexCoordP2ui = _save_TexCoordP2ui;
   1409    vfmt->TexCoordP3ui = _save_TexCoordP3ui;
   1410    vfmt->TexCoordP4ui = _save_TexCoordP4ui;
   1411    vfmt->TexCoordP1uiv = _save_TexCoordP1uiv;
   1412    vfmt->TexCoordP2uiv = _save_TexCoordP2uiv;
   1413    vfmt->TexCoordP3uiv = _save_TexCoordP3uiv;
   1414    vfmt->TexCoordP4uiv = _save_TexCoordP4uiv;
   1415 
   1416    vfmt->MultiTexCoordP1ui = _save_MultiTexCoordP1ui;
   1417    vfmt->MultiTexCoordP2ui = _save_MultiTexCoordP2ui;
   1418    vfmt->MultiTexCoordP3ui = _save_MultiTexCoordP3ui;
   1419    vfmt->MultiTexCoordP4ui = _save_MultiTexCoordP4ui;
   1420    vfmt->MultiTexCoordP1uiv = _save_MultiTexCoordP1uiv;
   1421    vfmt->MultiTexCoordP2uiv = _save_MultiTexCoordP2uiv;
   1422    vfmt->MultiTexCoordP3uiv = _save_MultiTexCoordP3uiv;
   1423    vfmt->MultiTexCoordP4uiv = _save_MultiTexCoordP4uiv;
   1424 
   1425    vfmt->NormalP3ui = _save_NormalP3ui;
   1426    vfmt->NormalP3uiv = _save_NormalP3uiv;
   1427 
   1428    vfmt->ColorP3ui = _save_ColorP3ui;
   1429    vfmt->ColorP4ui = _save_ColorP4ui;
   1430    vfmt->ColorP3uiv = _save_ColorP3uiv;
   1431    vfmt->ColorP4uiv = _save_ColorP4uiv;
   1432 
   1433    vfmt->SecondaryColorP3ui = _save_SecondaryColorP3ui;
   1434    vfmt->SecondaryColorP3uiv = _save_SecondaryColorP3uiv;
   1435 
   1436    vfmt->VertexAttribP1ui = _save_VertexAttribP1ui;
   1437    vfmt->VertexAttribP2ui = _save_VertexAttribP2ui;
   1438    vfmt->VertexAttribP3ui = _save_VertexAttribP3ui;
   1439    vfmt->VertexAttribP4ui = _save_VertexAttribP4ui;
   1440 
   1441    vfmt->VertexAttribP1uiv = _save_VertexAttribP1uiv;
   1442    vfmt->VertexAttribP2uiv = _save_VertexAttribP2uiv;
   1443    vfmt->VertexAttribP3uiv = _save_VertexAttribP3uiv;
   1444    vfmt->VertexAttribP4uiv = _save_VertexAttribP4uiv;
   1445 
   1446    /* This will all require us to fallback to saving the list as opcodes:
   1447     */
   1448    _MESA_INIT_DLIST_VTXFMT(vfmt, _save_);       /* inside begin/end */
   1449 
   1450    _MESA_INIT_EVAL_VTXFMT(vfmt, _save_);
   1451 
   1452    /* These calls all generate GL_INVALID_OPERATION since this vtxfmt is
   1453     * only used when we're inside a glBegin/End pair.
   1454     */
   1455    vfmt->Begin = _save_Begin;
   1456    vfmt->Rectf = _save_Rectf;
   1457    vfmt->DrawArrays = _save_DrawArrays;
   1458    vfmt->DrawElements = _save_DrawElements;
   1459    vfmt->DrawRangeElements = _save_DrawRangeElements;
   1460    vfmt->DrawElementsBaseVertex = _save_DrawElementsBaseVertex;
   1461    vfmt->DrawRangeElementsBaseVertex = _save_DrawRangeElementsBaseVertex;
   1462    vfmt->MultiDrawElementsEXT = _save_MultiDrawElements;
   1463    vfmt->MultiDrawElementsBaseVertex = _save_MultiDrawElementsBaseVertex;
   1464    vfmt->DrawTransformFeedback = _save_DrawTransformFeedback;
   1465    vfmt->DrawTransformFeedbackStream = _save_DrawTransformFeedbackStream;
   1466    vfmt->DrawTransformFeedbackInstanced = _save_DrawTransformFeedbackInstanced;
   1467    vfmt->DrawTransformFeedbackStreamInstanced =
   1468          _save_DrawTransformFeedbackStreamInstanced;
   1469 }
   1470 
   1471 
   1472 void
   1473 vbo_save_SaveFlushVertices(struct gl_context *ctx)
   1474 {
   1475    struct vbo_save_context *save = &vbo_context(ctx)->save;
   1476 
   1477    /* Noop when we are actually active:
   1478     */
   1479    if (ctx->Driver.CurrentSavePrimitive == PRIM_INSIDE_UNKNOWN_PRIM ||
   1480        ctx->Driver.CurrentSavePrimitive <= GL_POLYGON)
   1481       return;
   1482 
   1483    if (save->vert_count || save->prim_count)
   1484       _save_compile_vertex_list(ctx);
   1485 
   1486    _save_copy_to_current(ctx);
   1487    _save_reset_vertex(ctx);
   1488    _save_reset_counters(ctx);
   1489    ctx->Driver.SaveNeedFlush = 0;
   1490 }
   1491 
   1492 
   1493 void
   1494 vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode)
   1495 {
   1496    struct vbo_save_context *save = &vbo_context(ctx)->save;
   1497 
   1498    (void) list;
   1499    (void) mode;
   1500 
   1501    if (!save->prim_store)
   1502       save->prim_store = alloc_prim_store(ctx);
   1503 
   1504    if (!save->vertex_store)
   1505       save->vertex_store = alloc_vertex_store(ctx);
   1506 
   1507    save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
   1508 
   1509    _save_reset_vertex(ctx);
   1510    _save_reset_counters(ctx);
   1511    ctx->Driver.SaveNeedFlush = 0;
   1512 }
   1513 
   1514 
   1515 void
   1516 vbo_save_EndList(struct gl_context *ctx)
   1517 {
   1518    struct vbo_save_context *save = &vbo_context(ctx)->save;
   1519 
   1520    /* EndList called inside a (saved) Begin/End pair?
   1521     */
   1522    if (ctx->Driver.CurrentSavePrimitive != PRIM_OUTSIDE_BEGIN_END) {
   1523 
   1524       if (save->prim_count > 0) {
   1525          GLint i = save->prim_count - 1;
   1526          ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
   1527          save->prim[i].end = 0;
   1528          save->prim[i].count = (save->vert_count - save->prim[i].start);
   1529       }
   1530 
   1531       /* Make sure this vertex list gets replayed by the "loopback"
   1532        * mechanism:
   1533        */
   1534       save->dangling_attr_ref = 1;
   1535       vbo_save_SaveFlushVertices(ctx);
   1536 
   1537       /* Swap out this vertex format while outside begin/end.  Any color,
   1538        * etc. received between here and the next begin will be compiled
   1539        * as opcodes.
   1540        */
   1541       _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
   1542    }
   1543 
   1544    vbo_save_unmap_vertex_store(ctx, save->vertex_store);
   1545 
   1546    assert(save->vertex_size == 0);
   1547 }
   1548 
   1549 
   1550 void
   1551 vbo_save_BeginCallList(struct gl_context *ctx, struct gl_display_list *dlist)
   1552 {
   1553    struct vbo_save_context *save = &vbo_context(ctx)->save;
   1554    save->replay_flags |= dlist->Flags;
   1555 }
   1556 
   1557 
   1558 void
   1559 vbo_save_EndCallList(struct gl_context *ctx)
   1560 {
   1561    struct vbo_save_context *save = &vbo_context(ctx)->save;
   1562 
   1563    if (ctx->ListState.CallDepth == 1) {
   1564       /* This is correct: want to keep only the VBO_SAVE_FALLBACK
   1565        * flag, if it is set:
   1566        */
   1567       save->replay_flags &= VBO_SAVE_FALLBACK;
   1568    }
   1569 }
   1570 
   1571 
   1572 static void
   1573 vbo_destroy_vertex_list(struct gl_context *ctx, void *data)
   1574 {
   1575    struct vbo_save_vertex_list *node = (struct vbo_save_vertex_list *) data;
   1576    (void) ctx;
   1577 
   1578    if (--node->vertex_store->refcount == 0)
   1579       free_vertex_store(ctx, node->vertex_store);
   1580 
   1581    if (--node->prim_store->refcount == 0)
   1582       FREE(node->prim_store);
   1583 
   1584    if (node->current_data) {
   1585       FREE(node->current_data);
   1586       node->current_data = NULL;
   1587    }
   1588 }
   1589 
   1590 
   1591 static void
   1592 vbo_print_vertex_list(struct gl_context *ctx, void *data)
   1593 {
   1594    struct vbo_save_vertex_list *node = (struct vbo_save_vertex_list *) data;
   1595    GLuint i;
   1596    (void) ctx;
   1597 
   1598    printf("VBO-VERTEX-LIST, %u vertices %d primitives, %d vertsize\n",
   1599           node->count, node->prim_count, node->vertex_size);
   1600 
   1601    for (i = 0; i < node->prim_count; i++) {
   1602       struct _mesa_prim *prim = &node->prim[i];
   1603       _mesa_debug(NULL, "   prim %d: %s%s %d..%d %s %s\n",
   1604                   i,
   1605                   _mesa_lookup_prim_by_nr(prim->mode),
   1606                   prim->weak ? " (weak)" : "",
   1607                   prim->start,
   1608                   prim->start + prim->count,
   1609                   (prim->begin) ? "BEGIN" : "(wrap)",
   1610                   (prim->end) ? "END" : "(wrap)");
   1611    }
   1612 }
   1613 
   1614 
   1615 /**
   1616  * Called during context creation/init.
   1617  */
   1618 static void
   1619 _save_current_init(struct gl_context *ctx)
   1620 {
   1621    struct vbo_save_context *save = &vbo_context(ctx)->save;
   1622    GLint i;
   1623 
   1624    for (i = VBO_ATTRIB_POS; i <= VBO_ATTRIB_GENERIC15; i++) {
   1625       const GLuint j = i - VBO_ATTRIB_POS;
   1626       ASSERT(j < VERT_ATTRIB_MAX);
   1627       save->currentsz[i] = &ctx->ListState.ActiveAttribSize[j];
   1628       save->current[i] = ctx->ListState.CurrentAttrib[j];
   1629    }
   1630 
   1631    for (i = VBO_ATTRIB_FIRST_MATERIAL; i <= VBO_ATTRIB_LAST_MATERIAL; i++) {
   1632       const GLuint j = i - VBO_ATTRIB_FIRST_MATERIAL;
   1633       ASSERT(j < MAT_ATTRIB_MAX);
   1634       save->currentsz[i] = &ctx->ListState.ActiveMaterialSize[j];
   1635       save->current[i] = ctx->ListState.CurrentMaterial[j];
   1636    }
   1637 }
   1638 
   1639 
   1640 /**
   1641  * Initialize the display list compiler.  Called during context creation.
   1642  */
   1643 void
   1644 vbo_save_api_init(struct vbo_save_context *save)
   1645 {
   1646    struct gl_context *ctx = save->ctx;
   1647    GLuint i;
   1648 
   1649    save->opcode_vertex_list =
   1650       _mesa_dlist_alloc_opcode(ctx,
   1651                                sizeof(struct vbo_save_vertex_list),
   1652                                vbo_save_playback_vertex_list,
   1653                                vbo_destroy_vertex_list,
   1654                                vbo_print_vertex_list);
   1655 
   1656    ctx->Driver.NotifySaveBegin = vbo_save_NotifyBegin;
   1657 
   1658    _save_vtxfmt_init(ctx);
   1659    _save_current_init(ctx);
   1660    _mesa_noop_vtxfmt_init(&save->vtxfmt_noop);
   1661 
   1662    /* These will actually get set again when binding/drawing */
   1663    for (i = 0; i < VBO_ATTRIB_MAX; i++)
   1664       save->inputs[i] = &save->arrays[i];
   1665 
   1666    /* Hook our array functions into the outside-begin-end vtxfmt in
   1667     * ctx->ListState.
   1668     */
   1669    ctx->ListState.ListVtxfmt.Rectf = _save_OBE_Rectf;
   1670    ctx->ListState.ListVtxfmt.DrawArrays = _save_OBE_DrawArrays;
   1671    ctx->ListState.ListVtxfmt.DrawElements = _save_OBE_DrawElements;
   1672    ctx->ListState.ListVtxfmt.DrawRangeElements = _save_OBE_DrawRangeElements;
   1673    ctx->ListState.ListVtxfmt.MultiDrawElementsEXT = _save_OBE_MultiDrawElements;
   1674    ctx->ListState.ListVtxfmt.MultiDrawElementsBaseVertex = _save_OBE_MultiDrawElementsBaseVertex;
   1675    _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
   1676 }
   1677 
   1678 
   1679 #endif /* FEATURE_dlist */
   1680