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http://repo.or.cz/w/wmaker-crm.git/commit/7bf8efef5423a45f8cb3ffabeeb2754188460a44
commit 7bf8efef5423a45f8cb3ffabeeb2754188460a44
Author: Christophe CURIS <[email protected]>
Date: Sun Jun 16 21:51:02 2013 +0200
WRaster: Changed formula for reconverting angle to the (0-360) bounds
There is a dedicaded floating point modulo operator that does a
better job (faster, no precision loss), so we use it instead of the
complicated formula that uses type conversions.
Signed-off-by: Christophe CURIS <[email protected]>
diff --git a/wrlib/rotate.c b/wrlib/rotate.c
index d296815..f04b95e 100644
--- a/wrlib/rotate.c
+++ b/wrlib/rotate.c
@@ -52,7 +52,9 @@ RImage *RRotateImage(RImage * image, float angle)
*/
static const float min_usable_angle = 0.00699;
- angle = ((int)angle % 360) + (angle - (int)angle);
+ angle = fmod(angle, 360.0);
+ if (angle < 0.0)
+ angle += 360.0;
if (angle < min_usable_angle) {
/* Rotate by 0 degree */
http://repo.or.cz/w/wmaker-crm.git/commit/e9764aab71835608054589013957635c0e0616e4
commit e9764aab71835608054589013957635c0e0616e4
Author: Christophe CURIS <[email protected]>
Date: Sun Jun 16 21:51:01 2013 +0200
wmaker: Changed math on floating point by integer operation
For this case we happen to already have the same variable as integer
type, so it is better to use them directly for computation.
Please note that the floating point variables do not contain more
precision in this use case, otherwise the change would not be
transparent.
Signed-off-by: Christophe CURIS <[email protected]>
diff --git a/src/misc.c b/src/misc.c
index b2f40f6..4c4eaca 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -190,7 +190,7 @@ void SlideWindows(Window *wins[], int n, int from_x, int
from_y, int to_x, int t
dx = (float) dx_int;
dy = (float) dy_int;
- if (fabs(dx) > fabs(dy)) {
+ if (abs(dx_int) > abs(dy_int)) {
dx_is_bigger = 1;
}
http://repo.or.cz/w/wmaker-crm.git/commit/95ee539d6d33710cee9bbe051436b2147cebd295
commit 95ee539d6d33710cee9bbe051436b2147cebd295
Author: Christophe CURIS <[email protected]>
Date: Sun Jun 16 21:50:57 2013 +0200
Configure: Added explicit check for math library header
Compilation will not work if the header is missing, so make sure
it is present and compilable first. This can highligh sooner if
a user forgot to install the corresponding dev package.
Signed-off-by: Christophe CURIS <[email protected]>
diff --git a/m4/wm_libmath.m4 b/m4/wm_libmath.m4
index 3ff2c46..8d056a2 100644
--- a/m4/wm_libmath.m4
+++ b/m4/wm_libmath.m4
@@ -22,7 +22,9 @@
# Checks the needed library link flags needed to have math lib
# Sets variable LIBM with the appropriates flags
AC_DEFUN_ONCE([WM_CHECK_LIBM],
-[AC_CHECK_FUNC(atan,
+[AC_CHECK_HEADER([math.h], [],
+ [AC_MSG_ERROR([header for math library not found])])
+AC_CHECK_FUNC(atan,
[LIBM=],
[AC_CHECK_LIB(m, [atan],
[LIBM=-lm],
http://repo.or.cz/w/wmaker-crm.git/commit/f68ec6c91334bf97d43ee94a4568c8d4f2396939
commit f68ec6c91334bf97d43ee94a4568c8d4f2396939
Author: Christophe CURIS <[email protected]>
Date: Sun Jun 16 21:50:56 2013 +0200
Configure: Moved check for Math lib to a dedicated M4 macro
Took the opportunity to rewrite the check using autoconf macros
to generate a more compatible configure script.
Signed-off-by: Christophe CURIS <[email protected]>
diff --git a/configure.ac b/configure.ac
index 1066113..75ceab0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -477,12 +477,7 @@ dnl
dnl libWINGS uses math functions, check whether usage requires linking
dnl against libm
dnl
-AC_CHECK_FUNC(atan,[mathneedslibm=no;LIBM=],[mathneedslibm=dunno])
-if test "x$mathneedslibm" = "xdunno" ; then
- AC_CHECK_LIB(m, atan, [LIBM=-lm])
-fi
-AC_SUBST(LIBM)
-
+WM_CHECK_LIBM
dnl
dnl libWINGS uses FcPatternDel from libfontconfig
diff --git a/m4/wm_libmath.m4 b/m4/wm_libmath.m4
new file mode 100644
index 0000000..3ff2c46
--- /dev/null
+++ b/m4/wm_libmath.m4
@@ -0,0 +1,32 @@
+# wm_libmath.m4 - Macros to check proper libMath usage for WINGs
+#
+# Copyright (c) 2013 Christophe Curis
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# WM_CHECK_LIBM
+# -------------
+#
+# Checks the needed library link flags needed to have math lib
+# Sets variable LIBM with the appropriates flags
+AC_DEFUN_ONCE([WM_CHECK_LIBM],
+[AC_CHECK_FUNC(atan,
+ [LIBM=],
+ [AC_CHECK_LIB(m, [atan],
+ [LIBM=-lm],
+ [AC_MSG_WARN(Could not find Math library, you may experience problems)
+ LIBM=] )] ) dnl
+AC_SUBST(LIBM) dnl
+])
-----------------------------------------------------------------------
Summary of changes:
configure.ac | 7 +------
m4/wm_libmath.m4 | 34 ++++++++++++++++++++++++++++++++++
src/misc.c | 2 +-
wrlib/rotate.c | 4 +++-
4 files changed, 39 insertions(+), 8 deletions(-)
create mode 100644 m4/wm_libmath.m4
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