mewin/libpng
1
0
Fork 0
mirror of https://git.code.sf.net/p/libpng/code.git synced 2025-07-10 18:04:09 +02:00
Code Issues Projects Releases Wiki Activity

[master] Imported from libpng-1.6.0.tar

Browse Source
This commit is contained in:
Glenn Randers-Pehrson
2013-02-13 22:49:19 -06:00
parent d14caad2e9
commit 0da9cf38cd
150 changed files with 26368 additions and 49002 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
scripts/options.awk
View File

@@ -42,7 +42,7 @@ BEGIN{
comment=start cx # Comment start
cend="*/" end # Comment end
def=start "#define PNG_" ct # Arbitrary define
sup=ct "_SUPPORTED 1" end # end supported option
sup=ct "_SUPPORTED" end # end supported option
und=comment "#undef PNG_" ct # Unsupported option
une=ct "_SUPPORTED" cend # end unsupported option
error=start "ERROR:" # error message
@@ -287,15 +287,15 @@ $1 == "option" && NF >= 2{
# Else fall through to the error handler
}
# chunk NAME [requires OPT] [on|off|disabled]
# chunk NAME [requires OPT] [enables LIST] [on|off|disabled]
# Expands to the 'option' settings appropriate to the reading and
# writing of an ancilliary PNG chunk 'NAME':
#
# option READ_NAME requires READ_ANCILLARY_CHUNKS [READ_OPT]
# option READ_NAME enables NAME
# option READ_NAME enables NAME LIST
# [option READ_NAME off]
# option WRITE_NAME requires WRITE_ANCILLARY_CHUNKS [WRITE_OPT]
# option WRITE_NAME enables NAME
# option WRITE_NAME enables NAME LIST
# [option WRITE_NAME off]
pre != 0 && $1 == "chunk" && NF >= 2{
@@ -304,6 +304,7 @@ pre != 0 && $1 == "chunk" && NF >= 2{
onoff = ""
reqread = ""
reqwrite = ""
enables = ""
i = 3 # indicates format error
if (NF > 2) {
# read the keywords/additional OPTS
@@ -316,21 +317,25 @@ pre != 0 && $1 == "chunk" && NF >= 2{
else
break # on/off conflict
}
req = 0
} else if ($(i) == "requires")
req = 1
else if (req != 1)
break # bad line: handled below
else {
else if ($(i) == "enables")
req = 2
else if (req == 1){
reqread = reqread " READ_" $(i)
reqwrite = reqwrite " WRITE_" $(i)
}
} else if (req == 2)
enables = enables " " $(i)
else
break # bad line: handled below
}
}
if (i > NF) {
# Output new 'option' lines to the intermediate file (out)
print "option READ_" $2, "requires READ_ANCILLARY_CHUNKS" reqread, "enables", $2, onoff >out
print "option WRITE_" $2, "requires WRITE_ANCILLARY_CHUNKS" reqwrite, "enables", $2, onoff >out
print "option READ_" $2, "requires READ_ANCILLARY_CHUNKS" reqread, "enables", $2 enables , onoff >out
print "option WRITE_" $2, "requires WRITE_ANCILLARY_CHUNKS" reqwrite, "enables", $2 enables, onoff >out
next
}
# Else hit the error handler below - bad line format!