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add in cairo

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This commit is contained in:
Eric Andersen 2007-01-10 23:57:40 +00:00
parent 3a3e9897d4
commit 3a0a879172
5 changed files with 362 additions and 0 deletions
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1
package/Config.in
View File

@ -37,6 +37,7 @@ source "package/bison/Config.in"
source "package/boa/Config.in"
source "package/bridge/Config.in"
source "package/bsdiff/Config.in"
source "package/cairo/Config.in"
source "package/customize/Config.in"
source "package/dhcp/Config.in"
source "package/dialog/Config.in"

103
package/cairo/0001-Add-autoconf-macro-AX_C_FLOAT_WORDS_BIGENDIAN.patch Normal file
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@ -0,0 +1,103 @@
From nobody Mon Sep 17 00:00:00 2001
From: Dan Amelang <dan@amelang.net>
Date: Sun Oct 29 21:30:08 2006 -0800
Subject: [PATCH] Add autoconf macro AX_C_FLOAT_WORDS_BIGENDIAN
The symbol that this macro defines (FLOAT_WORDS_BIGENDIAN) can be used
to make double arithmetic tricks portable.
---
acinclude.m4 | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
configure.in | 1 +
2 files changed, 66 insertions(+), 0 deletions(-)
3231d91b59a6c2e1c40bbaa8b143694b6c693662
diff --git a/acinclude.m4 b/acinclude.m4
index af73800..a0eb13a 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -51,3 +51,68 @@ ifelse([$1],[],,
AM_CONDITIONAL(ENABLE_GTK_DOC, test x$enable_gtk_doc = xyes)
AM_CONDITIONAL(GTK_DOC_USE_LIBTOOL, test -n "$LIBTOOL")
])
+
+# AX_C_FLOAT_WORDS_BIGENDIAN ([ACTION-IF-TRUE], [ACTION-IF-FALSE],
+# [ACTION-IF-UNKNOWN])
+#
+# Checks the ordering of words within a multi-word float. This check
+# is necessary because on some systems (e.g. certain ARM systems), the
+# float word ordering can be different from the byte ordering. In a
+# multi-word float context, "big-endian" implies that the word containing
+# the sign bit is found in the memory location with the lowest address.
+# This implemenation was inspired by the AC_C_BIGENDIAN macro in autoconf.
+# -------------------------------------------------------------------------
+AC_DEFUN([AX_C_FLOAT_WORDS_BIGENDIAN],
+ [AC_CACHE_CHECK(whether float word ordering is bigendian,
+ ax_cv_c_float_words_bigendian, [
+
+# The endianess is detected by first compiling C code that contains a special
+# double float value, then grepping the resulting object file for certain
+# strings of ascii values. The double is specially crafted to have a
+# binary representation that corresponds with a simple string. In this
+# implementation, the string "noonsees" was selected because the individual
+# word values ("noon" and "sees") are palindromes, thus making this test
+# byte-order agnostic. If grep finds the string "noonsees" in the object
+# file, the target platform stores float words in big-endian order. If grep
+# finds "seesnoon", float words are in little-endian order. If neither value
+# is found, the user is instructed to specify the ordering.
+
+ax_cv_c_float_words_bigendian=unknown
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+
+double d = 90904234967036810337470478905505011476211692735615632014797120844053488865816695273723469097858056257517020191247487429516932130503560650002327564517570778480236724525140520121371739201496540132640109977779420565776568942592.0;
+
+]])], [
+
+if grep noonsees conftest.$ac_objext >/dev/null ; then
+ ax_cv_c_float_words_bigendian=yes
+fi
+if grep seesnoon conftest.$ac_objext >/dev/null ; then
+ if test "$ax_cv_c_float_words_bigendian" = unknown; then
+ ax_cv_c_float_words_bigendian=no
+ else
+ ax_cv_c_float_words_bigendian=unknown
+ fi
+fi
+
+])])
+
+case $ax_cv_c_float_words_bigendian in
+ yes)
+ m4_default([$1],
+ [AC_DEFINE([FLOAT_WORDS_BIGENDIAN], 1,
+ [Define to 1 if your system stores words within floats
+ with the most significant word first])]) ;;
+ no)
+ $2 ;;
+ *)
+ m4_default([$3],
+ [AC_MSG_ERROR([
+
+Unknown float word ordering. You need to manually preset
+ax_cv_c_float_words_bigendian=no (or yes) according to your system.
+
+ ])]) ;;
+esac
+
+])# AX_C_FLOAT_WORDS_BIGENDIAN
diff --git a/configure.in b/configure.in
index 2d2bf9f..797c7ce 100644
--- a/configure.in
+++ b/configure.in
@@ -55,6 +55,7 @@ AC_PROG_CPP
AC_PROG_LIBTOOL dnl required version (1.4) DON'T REMOVE!
AC_STDC_HEADERS
AC_C_BIGENDIAN
+AX_C_FLOAT_WORDS_BIGENDIAN
dnl ===========================================================================
dnl === Local macros
--
1.2.6

79
package/cairo/0002-Change-_cairo_fixed_from_double-to-use-the-magic-number-technique.patch Normal file
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@ -0,0 +1,79 @@
From nobody Mon Sep 17 00:00:00 2001
From: Dan Amelang <dan@amelang.net>
Date: Sun Oct 29 21:31:23 2006 -0800
Subject: [PATCH] Change _cairo_fixed_from_double to use the "magic number" technique
See long thread here:
http://lists.freedesktop.org/archives/cairo/2006-October/008285.html
---
src/cairo-fixed.c | 48 +++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 47 insertions(+), 1 deletions(-)
d88acddcabe770e17664b34a2d5f74d3926e1642
diff --git a/src/cairo-fixed.c b/src/cairo-fixed.c
index 604c9e7..fe6c2dc 100644
--- a/src/cairo-fixed.c
+++ b/src/cairo-fixed.c
@@ -42,10 +42,56 @@ _cairo_fixed_from_int (int i)
return i << 16;
}
+/* This is the "magic number" approach to converting a double into fixed
+ * point as described here:
+ *
+ * http://www.stereopsis.com/sree/fpu2006.html (an overview)
+ * http://www.d6.com/users/checker/pdfs/gdmfp.pdf (in detail)
+ *
+ * The basic idea is to add a large enough number to the double that the
+ * literal floating point is moved up to the extent that it forces the
+ * double's value to be shifted down to the bottom of the mantissa (to make
+ * room for the large number being added in). Since the mantissa is, at a
+ * given moment in time, a fixed point integer itself, one can convert a
+ * float to various fixed point representations by moving around the point
+ * of a floating point number through arithmetic operations. This behavior
+ * is reliable on most modern platforms as it is mandated by the IEEE-754
+ * standard for floating point arithmetic.
+ *
+ * For our purposes, a "magic number" must be carefully selected that is
+ * both large enough to produce the desired point-shifting effect, and also
+ * has no lower bits in its representation that would interfere with our
+ * value at the bottom of the mantissa. The magic number is calculated as
+ * follows:
+ *
+ * (2 ^ (MANTISSA_SIZE - FRACTIONAL_SIZE)) * 1.5
+ *
+ * where in our case:
+ * - MANTISSA_SIZE for 64-bit doubles is 52
+ * - FRACTIONAL_SIZE for 16.16 fixed point is 16
+ *
+ * Although this approach provides a very large speedup of this function
+ * on a wide-array of systems, it does come with two caveats:
+ *
+ * 1) It uses banker's rounding as opposed to arithmetic rounding.
+ * 2) It doesn't function properly if the FPU is in single-precision
+ * mode.
+ */
+#define CAIRO_MAGIC_NUMBER_FIXED_16_16 (103079215104.0)
cairo_fixed_t
_cairo_fixed_from_double (double d)
{
- return (cairo_fixed_t) floor (d * 65536 + 0.5);
+ union {
+ double d;
+ int32_t i[2];
+ } u;
+
+ u.d = d + CAIRO_MAGIC_NUMBER_FIXED_16_16;
+#ifdef FLOAT_WORDS_BIGENDIAN
+ return u.i[1];
+#else
+ return u.i[0];
+#endif
}
cairo_fixed_t
--
1.2.6

14
package/cairo/Config.in Normal file
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@ -0,0 +1,14 @@
config BR2_PACKAGE_CAIRO
bool "pango"
default n
select BR2_PACKAGE_PKGCONFIG
select BR2_PACKAGE_LIBPNG
select BR2_PACKAGE_XORG
help
Pango is a library for laying out and rendering of text, with an
emphasis on internationalization. Pango can be used anywhere that
text layout is needed, though most of the work on Pango so far has
been done in the context of the GTK+ widget toolkit. Pango forms the
core of text and font handling for GTK+-2.x.
http://www.pango.org/

165
package/cairo/cairo.mk Normal file
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@ -0,0 +1,165 @@
#############################################################
#
# cairo
#
#############################################################
CAIRO_VERSION:=1.2.6
CAIRO_SOURCE:=cairo-$(CAIRO_VERSION).tar.gz
CAIRO_SITE:=http://cairographics.org/releases
CAIRO_CAT:=$(ZCAT)
CAIRO_DIR:=$(BUILD_DIR)/cairo-$(CAIRO_VERSION)
CAIRO_BINARY:=libcairo-1.0.a
ifeq ($(BR2_ENDIAN),"BIG")
CAIRO_BE:=yes
else
CAIRO_BE:=no
endif
$(DL_DIR)/$(CAIRO_SOURCE):
$(WGET) -P $(DL_DIR) $(CAIRO_SITE)/$(CAIRO_SOURCE)
cairo-source: $(DL_DIR)/$(CAIRO_SOURCE)
$(CAIRO_DIR)/.unpacked: $(DL_DIR)/$(CAIRO_SOURCE)
$(CAIRO_CAT) $(DL_DIR)/$(CAIRO_SOURCE) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
toolchain/patch-kernel.sh $(CAIRO_DIR) package/cairo/ \*.patch*
$(CONFIG_UPDATE) $(CAIRO_DIR)
touch $(CAIRO_DIR)/.unpacked
$(CAIRO_DIR)/.configured: $(CAIRO_DIR)/.unpacked
(cd $(CAIRO_DIR); rm -rf config.cache; \
$(TARGET_CONFIGURE_OPTS) \
PKG_CONFIG=$(STAGING_DIR)/usr/bin/pkg-config \
ac_cv_c_bigendian=$(CAIRO_BE) \
ac_cv_func_posix_getpwuid_r=yes \
glib_cv_stack_grows=no \
glib_cv_uscore=no \
ac_cv_func_strtod=yes \
ac_fsusage_space=yes \
fu_cv_sys_stat_statfs2_bsize=yes \
ac_cv_func_closedir_void=no \
ac_cv_func_getloadavg=no \
ac_cv_lib_util_getloadavg=no \
ac_cv_lib_getloadavg_getloadavg=no \
ac_cv_func_getgroups=yes \
ac_cv_func_getgroups_works=yes \
ac_cv_func_chown_works=yes \
ac_cv_have_decl_euidaccess=no \
ac_cv_func_euidaccess=no \
ac_cv_have_decl_strnlen=yes \
ac_cv_func_strnlen_working=yes \
ac_cv_func_lstat_dereferences_slashed_symlink=yes \
ac_cv_func_lstat_empty_string_bug=no \
ac_cv_func_stat_empty_string_bug=no \
vb_cv_func_rename_trailing_slash_bug=no \
ac_cv_have_decl_nanosleep=yes \
jm_cv_func_nanosleep_works=yes \
gl_cv_func_working_utimes=yes \
ac_cv_func_utime_null=yes \
ac_cv_have_decl_strerror_r=yes \
ac_cv_func_strerror_r_char_p=no \
jm_cv_func_svid_putenv=yes \
ac_cv_func_getcwd_null=yes \
ac_cv_func_getdelim=yes \
ac_cv_func_mkstemp=yes \
utils_cv_func_mkstemp_limitations=no \
utils_cv_func_mkdir_trailing_slash_bug=no \
ac_cv_func_memcmp_working=yes \
ac_cv_have_decl_malloc=yes \
gl_cv_func_malloc_0_nonnull=yes \
ac_cv_func_malloc_0_nonnull=yes \
ac_cv_func_calloc_0_nonnull=yes \
ac_cv_func_realloc_0_nonnull=yes \
jm_cv_func_gettimeofday_clobber=no \
gl_cv_func_working_readdir=yes \
jm_ac_cv_func_link_follows_symlink=no \
utils_cv_localtime_cache=no \
ac_cv_struct_st_mtim_nsec=no \
gl_cv_func_tzset_clobber=no \
gl_cv_func_getcwd_null=yes \
gl_cv_func_getcwd_path_max=yes \
ac_cv_func_fnmatch_gnu=yes \
am_getline_needs_run_time_check=no \
am_cv_func_working_getline=yes \
gl_cv_func_mkdir_trailing_slash_bug=no \
gl_cv_func_mkstemp_limitations=no \
ac_cv_func_working_mktime=yes \
jm_cv_func_working_re_compile_pattern=yes \
ac_use_included_regex=no \
gl_cv_c_restrict=no \
ac_cv_path_GLIB_GENMARSHAL=/usr/bin/glib-genmarshal \
./configure \
--host=$(REAL_GNU_TARGET_NAME) \
--build=$(GNU_HOST_NAME) \
--prefix=$(STAGING_DIR) \
--exec_prefix=$(STAGING_DIR) \
--libdir=$(STAGING_DIR)/lib \
--includedir=$(STAGING_DIR)/include \
--bindir=/usr/bin \
--sbindir=/usr/sbin \
--libexecdir=/usr/lib \
--sysconfdir=/etc \
--datadir=/usr/share \
--localstatedir=/var \
--mandir=/usr/man \
--infodir=/usr/info \
--enable-shared \
--enable-static \
--with-x \
--x-includes=$(STAGING_DIR)/usr/X11R6/include \
--x-libraries=$(STAGING_DIR)/usr/X11R6/lib \
--enable-ps=no \
--enable-pdf=no \
--enable-svg=no \
--enable-png=yes \
--enable-freetype=yes \
--enable-xlib=yes \
--enable-xlib-xrender=yes \
);
touch $(CAIRO_DIR)/.configured
$(CAIRO_DIR)/cairo/.libs/$(CAIRO_BINARY): $(CAIRO_DIR)/.configured
$(MAKE) CC=$(TARGET_CC) -C $(CAIRO_DIR)
touch -c $(CAIRO_DIR)/cairo/.libs/$(CAIRO_BINARY)
$(STAGING_DIR)/lib/$(CAIRO_BINARY): $(CAIRO_DIR)/cairo/.libs/$(CAIRO_BINARY)
$(MAKE) prefix=$(STAGING_DIR) \
exec_prefix=$(STAGING_DIR) \
bindir=$(STAGING_DIR)/bin \
sbindir=$(STAGING_DIR)/sbin \
libexecdir=$(STAGING_DIR)/libexec \
datadir=$(STAGING_DIR)/share \
sysconfdir=$(STAGING_DIR)/etc \
sharedstatedir=$(STAGING_DIR)/com \
localstatedir=$(STAGING_DIR)/var \
libdir=$(STAGING_DIR)/lib \
includedir=$(STAGING_DIR)/include \
oldincludedir=$(STAGING_DIR)/include \
infodir=$(STAGING_DIR)/info \
mandir=$(STAGING_DIR)/man \
-C $(CAIRO_DIR) install;
$(TARGET_DIR)/lib/libcairo.so.2.9.3: $(STAGING_DIR)/lib/$(CAIRO_BINARY)
cp -a $(STAGING_DIR)/lib/libcairo.so $(TARGET_DIR)/lib/
cp -a $(STAGING_DIR)/lib/libcairo.so.2* $(TARGET_DIR)/lib/
$(STRIP) --strip-unneeded $(TARGET_DIR)/lib/libcairo.so.2.*
touch -c $(TARGET_DIR)/lib/libcairo.so.2.9.3
cairo: uclibc gettext libintl pkgconfig libglib2 xorg cairo $(TARGET_DIR)/lib/libcairo.so.2.9.3
cairo-clean:
rm -f $(TARGET_DIR)/lib/$(CAIRO_BINARY)
-$(MAKE) -C $(CAIRO_DIR) clean
cairo-dirclean:
rm -rf $(CAIRO_DIR)
#############################################################
#
# Toplevel Makefile options
#
#############################################################
ifeq ($(strip $(BR2_PACKAGE_CAIRO)),y)
TARGETS+=cairo
endif