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obj2d: switch to flat array of indices

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This commit is contained in:
Josh Holtrop 2013-11-20 23:54:15 -05:00
parent 6f87666e14
commit 543006b3ec
2 changed files with 41 additions and 23 deletions
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50
obj2d.rb
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@ -3,31 +3,38 @@
require "erb"
TEMPLATE = <<EOF
float[2][] vertices = [
<%= vertices.map {|v| v[0, 2].inspect}.join(",\n ") %>
];
<% objects.each_pair do |obj_name, obj_array| %>
<% obj_array.each_with_index do |oa, index| %>
ushort[<%= oa.size * oa.first.size %>] <%= obj_name %>_<%= index %> = [
<%= oa.map {|indices| indices.join(", ")}.join(",\n ") %>
];
<% end %>
ushort[][] get_<%= obj_name %>()
struct indices_range_t
{
return [
<% obj_array.each_with_index do |oa, index| -%>
<%= obj_name %>_<%= index %>,
int start;
int length;
};
float[<%= vertices.size %>] vertices = [
<% vertices.each do |coord| -%>
<%= coord %>,
<% end -%>
];
}
<% end %>
ushort[<%= indices.size %>] indices = [
<% indices.each do |index| -%>
<%= index %>,
<% end -%>
];
<% object_ranges.each_pair do |obj_name, obj_ranges| -%>
indices_range_t[] <%= obj_name %> = [
<% obj_ranges.each do |obj_range| -%>
{<%= obj_range[0] %>, <%= obj_range[1] %>},
<% end -%>
];
<% end -%>
EOF
def main(obj_fname, d_fname)
objects = {}
object_ranges = {}
vertices = []
indices = []
cur_obj = nil
File.read(obj_fname).each_line do |line|
if line =~ /^v\s+(\S+)\s+(\S+)/
@ -45,6 +52,15 @@ def main(obj_fname, d_fname)
cur_obj << [$1, $2].map {|v| v.to_i - 1}
end
end
vertices.flatten!
objects.each_pair do |obj_name, obj_array|
object_ranges[obj_name] = obj_array.map do |obj_indices|
obj_indices.flatten!
base_index = indices.size
indices += obj_indices
[base_index, obj_indices.size]
end
end
File.open(d_fname, "w") do |fh|
fh.puts ERB.new(TEMPLATE, nil, "<>-").result(binding)
end

10
src/logo.d
View File

@ -9,14 +9,14 @@ immutable enum int WIRE = 1;
immutable enum int GENTEX = 0;
immutable enum int CORPORATION = 1;
ushort[][][2][2] object_indices;
logoobj.indices_range_t [][2][2] object_indices;
/* Indexed by: face/wire, word, character */
VAO[][2][2] object_vaos;
void init()
{
object_indices = [[logoobj.get_fg(), logoobj.get_fc()],
[logoobj.get_lg(), logoobj.get_lc()]];
object_indices = [[logoobj.fg, logoobj.fc],
[logoobj.lg, logoobj.lc]];
Buffer vertices_buffer = new Buffer(logoobj.vertices);
for (int draw_type = FACE; draw_type <= WIRE; draw_type++)
{
@ -31,7 +31,9 @@ void init()
vao.bind();
vertices_buffer.bind();
ElementBuffer ibo = new ElementBuffer(object_indices[draw_type][word][char_index]);
int start = object_indices[draw_type][word][char_index].start;
int length = object_indices[draw_type][word][char_index].length;
ElementBuffer ibo = new ElementBuffer(logoobj.indices[start .. (start + length)]);
ibo.bind();
object_vaos[draw_type][word][char_index] = vao;