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Another mechanism to create vertices with holes - a new EMIT_PAD style

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This commit is contained in:
Keith Whitwell 2004-01-21 15:31:46 +00:00
parent e98986bdd3
commit 4d36f334c9
2 changed files with 33 additions and 16 deletions
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48
src/mesa/tnl/t_vertex.c
View file

@ -657,7 +657,12 @@ struct {
extract_4chan_4f_rgba,
{ insert_4chan_4f_rgba_1, insert_4chan_4f_rgba_2, insert_4chan_4f_rgba_3,
insert_4chan_4f_rgba_4 },
4 * sizeof(GLchan) }
4 * sizeof(GLchan) },
{ "pad",
0,
{ 0, 0, 0, 0 },
0 }
};
@ -958,36 +963,47 @@ GLuint _tnl_install_attrs( GLcontext *ctx, const struct tnl_attr_map *map,
{
struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
int offset = 0;
GLuint i;
GLuint i, j;
assert(nr < _TNL_ATTRIB_MAX);
assert(nr == 0 || map[0].attrib == VERT_ATTRIB_POS);
vtx->attr_count = nr;
vtx->emit = choose_emit_func;
vtx->interp = choose_interp_func;
vtx->copy_pv = choose_copy_pv_func;
vtx->new_inputs = ~0;
for (i = 0; i < nr; i++) {
for (j = 0, i = 0; i < nr; i++) {
GLuint format = map[i].format;
vtx->attr[i].attrib = map[i].attrib;
vtx->attr[i].vp = vp;
vtx->attr[i].insert = format_info[format].insert;
vtx->attr[i].extract = format_info[format].extract;
vtx->attr[i].vertattrsize = format_info[format].attrsize;
if (format == EMIT_PAD) {
offset += map[i].offset;
if (unpacked_size)
vtx->attr[i].vertoffset = map[i].offset;
else
vtx->attr[i].vertoffset = offset;
/* fprintf(stderr, "%d: pad %d, offset now %d\n", i, */
/* map[i].offset, offset); */
/* fprintf(stderr, "%d: %s offset %d\n", i, */
/* format_info[format].name, vtx->attr[i].vertoffset); */
}
else {
vtx->attr[j].attrib = map[i].attrib;
vtx->attr[j].vp = vp;
vtx->attr[j].insert = format_info[format].insert;
vtx->attr[j].extract = format_info[format].extract;
vtx->attr[j].vertattrsize = format_info[format].attrsize;
offset += format_info[format].attrsize;
if (unpacked_size)
vtx->attr[j].vertoffset = map[i].offset;
else
vtx->attr[j].vertoffset = offset;
/* fprintf(stderr, "%d: %s offset %d\n", i, */
/* format_info[format].name, vtx->attr[j].vertoffset); */
offset += format_info[format].attrsize;
j++;
}
}
vtx->attr_count = j;
if (unpacked_size)
vtx->vertex_size = unpacked_size;
else

1
src/mesa/tnl/t_vertex.h
View file

@ -51,6 +51,7 @@ enum tnl_attr_format {
EMIT_4UB_4F_BGRA, /* for color */
EMIT_4UB_4F_RGBA, /* for color */
EMIT_4CHAN_4F_RGBA, /* for swrast color */
EMIT_PAD, /* leave a hole of 'offset' bytes */
EMIT_MAX
};