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freetype2
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Code Issues 4 Releases Wiki Activity

formatting

This commit is contained in:
Werner Lemberg 2001-05-12 06:40:50 +00:00
parent 09d55ceabf
commit a64c55b17f
6 changed files with 65 additions and 53 deletions
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56
ChangeLog
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@ -1,38 +1,50 @@
2001-05-11 David Turner <david@freetype.org> 2001-05-11 David Turner <david@freetype.org>
* src/cff/cffparse.c, src/cid/cidload.c, src/type1/t1load.c: fixed * src/cff/cffparse.c (cff_parse_font_matrix), src/cid/cidload.c
the incorrect EM size computation (parse_font_matrix), src/type1/t1load.c (parse_font_matrix): Fixed
the incorrect EM size computation.
* include/freetype/fttrigon.h, src/base/fttrigon.c, src/base/ftbase.c, * include/freetype/fttrigon.h, src/base/fttrigon.c: New files,
src/base/Jamfile, src/base/rules.mk: adding trigonometric functions adding trigonometric functions to the core API (using Cordic
to the core API (using Cordic algorithms). algorithms).
* src/base/ftbase.c, src/base/Jamfile, src/base/rules.mk: Use them.
* builds/top_level.mk, builds/newline, builds/detect.mk: fixed problems * builds/newline: New file.
with Make on Windows 2000, as well as problems when "make distclean" is * builds/top_level.mk, builds/detect.mk: Use it. This fixes
invoked on a non-Unix platform when there is no "config.mk" in the problems with Make on Windows 2000, as well as problems when "make
current directory.. distclean" is invoked on a non-Unix platform when there is no
"config.mk" in the current directory.
* builds/freetype.mk: fixed a problem with object deletions under * builds/freetype.mk: Fixed a problem with object deletions under
Dos/Windows/OS/2 systems Dos/Windows/OS/2 systems.
* src/tools: added new directory to hold tools and test programs Added new directory to hold tools and test programs.
moved docmaker.py, glnames.py to it..
* src/tools/docmaker.py: improved the script to add the current date * docs/docmaker.py, docs/glnames.py: Moved to...
at the footer of each web page (useful to distinguish between versions) * src/tools/docmaker.py, src/tools/glnames.py: This place.
* src/tools/cordic.py: New file used to compute arctangent table
needed by fttrigon.c.
* src/tools/test_bbox.c, src/tools/test_trig.c: New test files.
* Jamfile: fixed incorrect HDRMACRO argument. * src/tools/docmaker.py: Improved the script to add the current date
at the footer of each web page (useful to distinguish between
versions).
* TODO: removed the cubic arc bbox computation note, since it has been * Jamfile: Fixed incorrect HDRMACRO argument.
fixed recently..
* include/freetype/t1tables.h, include/freetype/config/ftoption.h: * TODO: Removed the cubic arc bbox computation note, since it has been
formatting fixed recently.
* src/base/ftbbox.c (test_cubic_zero): Renamed to...
(test_cubic_extrema): This function. Use `UL' for unsigned long
constants.
* include/freetype/t1tables.h, include/freetype/config/ftoption.h:
Formatting.
2001-05-10 David Turner <david@freetype.org> 2001-05-10 David Turner <david@freetype.org>
* src/base/ftobjs.c (FT_Open_Face): fixed a small memory leaked * src/base/ftobjs.c (FT_Open_Face): Fixed a small memory leak
which happened when trying to open 0-size font files !! which happened when trying to open 0-size font files!
2001-05-09 Werner Lemberg <wl@gnu.org> 2001-05-09 Werner Lemberg <wl@gnu.org>

2
builds/detect.mk
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@ -132,7 +132,7 @@ std_setup:
@$(COPY) $(CONFIG_RULES) $(CONFIG_MK) @$(COPY) $(CONFIG_RULES) $(CONFIG_MK)
# special case for Dos, Windows, OS/2, where echo "" doesn't work correctly !! # Special case for Dos, Windows, OS/2, where echo "" doesn't work correctly!
# #
dos_setup: dos_setup:
@type builds\newline @type builds\newline

4
builds/freetype.mk
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@ -273,8 +273,8 @@ distclean_project_std: clean_project_std
# The Dos command shell does not support very long list of arguments, so # The Dos command shell does not support very long list of arguments, so
# we are stuck with wildcards. # we are stuck with wildcards.
# #
# don't break the command lines with, this prevents the "del" command from # Don't break the command lines with; this prevents the "del" command from
# working correctly on Win9x # working correctly on Win9x.
# #
clean_project_dos: clean_project_dos:
-$(DELETE) $(subst $(SEP),$(HOSTSEP),$(OBJ_))*.$O $(CLEAN) $(NO_OUTPUT) -$(DELETE) $(subst $(SEP),$(HOSTSEP),$(OBJ_))*.$O $(CLEAN) $(NO_OUTPUT)

4
builds/toplevel.mk
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@ -97,11 +97,11 @@ ifdef check_platform
# GNU make. Similarly, `nul' is created if e.g. `make setup win32' has # GNU make. Similarly, `nul' is created if e.g. `make setup win32' has
# been erroneously used. # been erroneously used.
# #
# note: this test is duplicated in "builds/toplevel.mk" # note: This test is duplicated in "builds/toplevel.mk".
#
is_unix := $(strip $(wildcard /sbin/init) $(wildcard /hurd/auth)) is_unix := $(strip $(wildcard /sbin/init) $(wildcard /hurd/auth))
ifneq ($(is_unix),) ifneq ($(is_unix),)
distclean: distclean:
$(RM) builds/unix/config.cache $(RM) builds/unix/config.cache
$(RM) builds/unix/config.log $(RM) builds/unix/config.log

3
builds/unix/detect.mk
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@ -16,7 +16,8 @@
ifeq ($(PLATFORM),ansi) ifeq ($(PLATFORM),ansi)
# note: this test is duplicated in "builds/toplevel.mk" # Note: this test is duplicated in "builds/toplevel.mk".
#
is_unix := $(strip $(wildcard /sbin/init) $(wildcard /hurd/auth)) is_unix := $(strip $(wildcard /sbin/init) $(wildcard /hurd/auth))
ifneq ($(is_unix),) ifneq ($(is_unix),)

49
src/base/ftbbox.c
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@ -357,7 +357,7 @@
FT_Fixed t; FT_Fixed t;
/* we need to solve "ax^2+2bx+c" here, without floating points! */ /* We need to solve "ax^2+2bx+c" here, without floating points! */
/* The trick is to normalize to a different representation in order */ /* The trick is to normalize to a different representation in order */
/* to use our 16.16 fixed point routines. */ /* to use our 16.16 fixed point routines. */
/* */ /* */
@ -373,25 +373,25 @@
int shift = 0; int shift = 0;
/* technical explanation of what's happening there */ /* Technical explanation of what's happening there. */
/* */ /* */
/* the following computation is based on the fact that for */ /* The following computation is based on the fact that for */
/* any value "y", if "n" is the position of the most */ /* any value "y", if "n" is the position of the most */
/* significant bit of "abs(y)" (starting from 0 for the */ /* significant bit of "abs(y)" (starting from 0 for the */
/* least significant bit), then y is in the range */ /* least significant bit), then y is in the range */
/* */ /* */
/* "-2^n..2^n-1" */ /* "-2^n..2^n-1" */
/* */ /* */
/* we want to shift "a", "b" and "c" concurrently in order */ /* We want to shift "a", "b" and "c" concurrently in order */
/* to ensure that they all fit in 8.16 values, which maps */ /* to ensure that they all fit in 8.16 values, which maps */
/* to the integer range "-2^23..2^23-1" */ /* to the integer range "-2^23..2^23-1". */
/* */ /* */
/* necessarily, we need to shift "a", "b" and "c" so that */ /* Necessarily, we need to shift "a", "b" and "c" so that */
/* the most significant bit of their absolute values is at */ /* the most significant bit of their absolute values is at */
/* _most_ at position 23 */ /* _most_ at position 23. */
/* */ /* */
/* we begin by computing "t1" as the bitwise "or" of the */ /* We begin by computing "t1" as the bitwise "or" of the */
/* absolute values of "a", "b", "c" */ /* absolute values of "a", "b", "c". */
/* */ /* */
t1 = (FT_ULong)((a >= 0) ? a : -a ); t1 = (FT_ULong)((a >= 0) ? a : -a );
t2 = (FT_ULong)((b >= 0) ? b : -b ); t2 = (FT_ULong)((b >= 0) ? b : -b );
@ -399,31 +399,30 @@
t2 = (FT_ULong)((c >= 0) ? c : -c ); t2 = (FT_ULong)((c >= 0) ? c : -c );
t1 |= t2; t1 |= t2;
/* now, the most significant bit of "t1" is sure to be the */ /* Now, the most significant bit of "t1" is sure to be the */
/* msb of one of "a", "b", "c", depending on which one is */ /* msb of one of "a", "b", "c", depending on which one is */
/* expressed in the greatest integer range.. */ /* expressed in the greatest integer range. */
/* */ /* */
/* we will now compute the "shift", by shifting "t1" as many */ /* We now compute the "shift", by shifting "t1" as many */
/* times as necessary to move its msb to position 23. */ /* times as necessary to move its msb to position 23. */
/* */ /* */
/* this corresponds to a value of t1 that is in the range */ /* This corresponds to a value of t1 that is in the range */
/* 0x40_0000..0x7F_FFFF */ /* 0x40_0000..0x7F_FFFF. */
/* */ /* */
/* finally, we shift "a", "b" and "c" by the same amount. */ /* Finally, we shift "a", "b" and "c" by the same amount. */
/* this ensure that all values are now in the range */ /* This ensures that all values are now in the range */
/* -2^23..2^23, i.e. that they're now expressed as 8.16 */ /* -2^23..2^23, i.e. that they are now expressed as 8.16 */
/* fixed float numbers.. */ /* fixed float numbers. */
/* */ /* */
/* this also means that we're using 24 bits of precision */ /* This also means that we are using 24 bits of precision */
/* to compute the zeros, independently of the range of */ /* to compute the zeros, independently of the range of */
/* the original polynom coefficients. */ /* the original polynom coefficients. */
/* */ /* */
/* this should ensure reasonably accurate values for the */ /* This should ensure reasonably accurate values for the */
/* zeros. Note that the latter are only expressed with */ /* zeros. Note that the latter are only expressed with */
/* 16 bits when computing the extrema (the zeros need to */ /* 16 bits when computing the extrema (the zeros need to */
/* be in 0..1 exclusive to be considered part of the arc) */ /* be in 0..1 exclusive to be considered part of the arc). */
/* */ /* */
if ( t1 == 0 ) /* all coefficients are 0! */ if ( t1 == 0 ) /* all coefficients are 0! */
return; return;
@ -435,8 +434,8 @@
t1 >>= 1; t1 >>= 1;
} while ( t1 > 0x7FFFFFUL ); } while ( t1 > 0x7FFFFFUL );
/* losing some bits of precision, but we'll use 24 of them */ /* losing some bits of precision, but we use 24 of them */
/* for the computation anyway.. */ /* for the computation anyway. */
a >>= shift; a >>= shift;
b >>= shift; b >>= shift;
c >>= shift; c >>= shift;