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authorPhilipp Gesang <phg@phi-gamma.net>2017-01-29 19:04:33 +0100
committerPhilipp Gesang <phg@phi-gamma.net>2017-01-29 19:04:33 +0100
commitbf4d896671075aaee73fd7826f66fd179112011c (patch)
treea8f2e1ac6a648ee14668343ddd82435dad03bfab /src
parent6b324ecd8b9f092e93ca12390ab4378ebe18dfe6 (diff)
downloadluaotfload-bf4d896671075aaee73fd7826f66fd179112011c.tar.gz
[conf,db] make design size dimension configurable
Diffstat (limited to 'src')
-rw-r--r--src/luaotfload-configuration.lua49
-rw-r--r--src/luaotfload-database.lua39
2 files changed, 74 insertions, 14 deletions
diff --git a/src/luaotfload-configuration.lua b/src/luaotfload-configuration.lua
index 8484c62..46e9074 100644
--- a/src/luaotfload-configuration.lua
+++ b/src/luaotfload-configuration.lua
@@ -92,6 +92,11 @@ local valid_formats = tabletohash {
"otf", "ttc", "ttf", "afm", "pfb"
}
+--- cf. TeXbook p. 57
+local valid_designsize_dimens = tabletohash {
+ "bp", "pt", "dd"
+}
+
local default_anon_sequence = {
"tex", "path", "name"
}
@@ -203,6 +208,7 @@ local default_config = {
update_live = true,
compress = true,
max_fonts = 2^51,
+ designsize_dimen= "bp",
},
run = {
anon_sequence = default_anon_sequence,
@@ -314,6 +320,18 @@ local set_font_filter = function ()
return true
end
+local set_size_dimension = function ()
+ local names = fonts.names
+ if names and names.size_dimension then
+ local dim = config.luaotfload.db.designsize_dimen
+ if not dim or dim == "" then
+ dim = default_config.db.designsize_dimen
+ end
+ names.set_size_dimension (dim)
+ end
+ return true
+end
+
local set_name_resolver = function ()
local names = fonts.names
if names and names.resolve_cached then
@@ -382,6 +400,7 @@ reconf_tasks = {
{ "Build cache paths" , build_cache_paths },
{ "Check terminal dimensions" , check_termwidth },
{ "Set the font filter" , set_font_filter },
+ { "Set design size dimension" , set_size_dimension },
{ "Install font name resolver", set_name_resolver },
{ "Set default features" , set_default_features },
}
@@ -482,6 +501,21 @@ local option_spec = {
out_t = number_t, --- TODO int_t from 5.3.x on
transform = tointeger,
},
+ designsize_dimen = {
+ in_t = string_t,
+ out_t = string_t,
+ transform = function (dim)
+ if not valid_designsize_dimens [dim] then
+ local default = valid_designsize_dimens.__default
+ logreport ("both", 0, "conf",
+ "Invalid dimension %q specified for design sizes, \z
+ using default %q.", dim, default)
+ return default
+ end
+ logreport ("both", 4, "conf", "Chosen design size dimension %q.", dim)
+ return dim
+ end
+ },
},
run = {
anon_sequence = {
@@ -698,13 +732,14 @@ local conf_footer = [==[
local formatters = {
db = {
- compress = { false, format_boolean },
- formats = { false, format_string },
- max_fonts = { false, format_integer },
- scan_local = { false, format_boolean },
- skip_read = { false, format_boolean },
- strip = { false, format_boolean },
- update_live = { false, format_boolean },
+ compress = { false, format_boolean },
+ designsize_dimen = { false, format_string },
+ formats = { false, format_string },
+ max_fonts = { false, format_integer },
+ scan_local = { false, format_boolean },
+ skip_read = { false, format_boolean },
+ strip = { false, format_boolean },
+ update_live = { false, format_boolean },
},
default_features = {
__default = { true, format_keyval },
diff --git a/src/luaotfload-database.lua b/src/luaotfload-database.lua
index d0a2420..5750966 100644
--- a/src/luaotfload-database.lua
+++ b/src/luaotfload-database.lua
@@ -162,7 +162,6 @@ local tablesort = table.sort
local utf8gsub = unicode.utf8.gsub
local utf8lower = unicode.utf8.lower
local utf8len = unicode.utf8.len
-local zlibcompress = zlib.compress
--- these come from Lualibs/Context
local filebasename = file.basename
@@ -1322,9 +1321,34 @@ local load_font_file = function (filename, subfont)
return ret
end
-local get_size_info do --- too many upvalues :/
- local design_dimension_bp = true
- local pt, bp = 7227.0, 7200.0
+local set_size_dimension
+local get_size_info
+do --- too many upvalues :/
+ --- cf. TeXbook p. 57
+ local dimens = {
+ pt = function (v) return v end,
+ bp = function (v) return (v * 7200.0) / 7227.0 end,
+ dd = function (v) return (v * 1157.0) / 1238.0 end,
+ }
+
+ local dimen_pt = 1
+ local dimen_bp = 2
+ local dimen_dd = 3
+
+ local size_dimen = dimens.bp
+ local set_size_dimen = function (dim)
+ local f = dimens [dim]
+ if f then
+ logreport ("both", 4, "db",
+ "Interpreting design sizes as %q, factor %.6f.",
+ dim, f (1.000000))
+ size_dimen = f
+ return
+ end
+ logreport ("both", 0, "db",
+ "Invalid dimension %q requested for design sizes; \z
+ ignoring.")
+ end
--- rawdata -> (int * int * int | bool)
@@ -1343,9 +1367,9 @@ local get_size_info do --- too many upvalues :/
design_range_bottom = (design_range_bottom or fallback_size) / 10
if design_dimension_bp == true then
- design_size = (design_size * bp) / pt
- design_range_top = (design_range_top * bp) / pt
- design_range_bottom = (design_range_bottom * bp) / pt
+ design_size = size_dimen (design_size )
+ design_range_top = size_dimen (design_range_top )
+ design_range_bottom = size_dimen (design_range_bottom)
end
return {
@@ -3572,6 +3596,7 @@ local api = {
local export = {
set_font_filter = set_font_filter,
+ set_size_dimension = set_size_dimension,
flush_lookup_cache = flush_lookup_cache,
save_lookups = save_lookups,
load = load_names,