[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [37336] trunk/blender/source: replace log( ) calls with constants

[Campbell Barton]

Revision: 37336
          http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=37336
Author:   campbellbarton
Date:     2011-06-09 14:27:51 +0000 (Thu, 09 Jun 2011)
Log Message:
-----------
replace log() calls with constants

Modified Paths:
--------------
    trunk/blender/source/blender/blenkernel/intern/multires.c
    trunk/blender/source/blender/blenkernel/intern/seqeffects.c
    trunk/blender/source/blender/blenlib/intern/math_base_inline.c
    trunk/blender/source/blender/editors/interface/interface.c
    trunk/blender/source/blender/editors/space_outliner/outliner.c
    trunk/blender/source/blender/render/intern/source/sunsky.c
    trunk/blender/source/gameengine/Converter/KX_ConvertActuators.cpp

Modified: trunk/blender/source/blender/blenkernel/intern/multires.c
===================================================================
--- trunk/blender/source/blender/blenkernel/intern/multires.c	2011-06-09 13:46:34 UTC (rev 37335)
+++ trunk/blender/source/blender/blenkernel/intern/multires.c	2011-06-09 14:27:51 UTC (rev 37336)
@@ -1020,7 +1020,7 @@
 
 static void old_mdisps_convert(MFace *mface, MDisps *mdisp)
 {
-	int newlvl = log(sqrt(mdisp->totdisp)-1)/log(2);
+	int newlvl = log(sqrt(mdisp->totdisp)-1)/M_LN2;
 	int oldlvl = newlvl+1;
 	int oldside = multires_side_tot[oldlvl];
 	int newside = multires_side_tot[newlvl];

Modified: trunk/blender/source/blender/blenkernel/intern/seqeffects.c
===================================================================
--- trunk/blender/source/blender/blenkernel/intern/seqeffects.c	2011-06-09 13:46:34 UTC (rev 37335)
+++ trunk/blender/source/blender/blenkernel/intern/seqeffects.c	2011-06-09 14:27:51 UTC (rev 37336)
@@ -1582,7 +1582,7 @@
 static void precalc_wipe_zone(WipeZone *wipezone, WipeVars *wipe, int xo, int yo)
 {
 	wipezone->flip = (wipe->angle < 0);
-	wipezone->angle = pow(fabsf(wipe->angle)/45.0f, log(xo)/log(2.0f));
+	wipezone->angle = pow(fabsf(wipe->angle)/45.0f, log(xo)/M_LN2);
 	wipezone->xo = xo;
 	wipezone->yo = yo;
 	wipezone->width = (int)(wipe->edgeWidth*((xo+yo)/2.0f));

Modified: trunk/blender/source/blender/blenlib/intern/math_base_inline.c
===================================================================
--- trunk/blender/source/blender/blenlib/intern/math_base_inline.c	2011-06-09 13:46:34 UTC (rev 37335)
+++ trunk/blender/source/blender/blenlib/intern/math_base_inline.c	2011-06-09 14:27:51 UTC (rev 37336)
@@ -114,7 +114,7 @@
 /* used for zoom values*/
 MINLINE float power_of_2(float val)
 {
-	return (float)pow(2.0, ceil(log((double)val) / log(2.0)));
+	return (float)pow(2.0, ceil(log((double)val) / M_LN2));
 }
 
 MINLINE float minf(float a, float b)

Modified: trunk/blender/source/blender/editors/interface/interface.c
===================================================================
--- trunk/blender/source/blender/editors/interface/interface.c	2011-06-09 13:46:34 UTC (rev 37335)
+++ trunk/blender/source/blender/editors/interface/interface.c	2011-06-09 14:27:51 UTC (rev 37336)
@@ -1733,7 +1733,7 @@
 static double soft_range_round_up(double value, double max)
 {
 	/* round up to .., 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, .. */
-	double newmax= pow(10.0, ceil(log(value)/log(10.0)));
+	double newmax= pow(10.0, ceil(log(value)/M_LN10));
 
 	if(newmax*0.2 >= max && newmax*0.2 >= value)
 		return newmax*0.2;
@@ -1746,7 +1746,7 @@
 static double soft_range_round_down(double value, double max)
 {
 	/* round down to .., 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, .. */
-	double newmax= pow(10.0, floor(log(value)/log(10.0)));
+	double newmax= pow(10.0, floor(log(value)/M_LN10));
 
 	if(newmax*5.0 <= max && newmax*5.0 <= value)
 		return newmax*5.0;

Modified: trunk/blender/source/blender/editors/space_outliner/outliner.c
===================================================================
--- trunk/blender/source/blender/editors/space_outliner/outliner.c	2011-06-09 13:46:34 UTC (rev 37335)
+++ trunk/blender/source/blender/editors/space_outliner/outliner.c	2011-06-09 14:27:51 UTC (rev 37336)
@@ -436,7 +436,7 @@
 static TreeElement *outliner_add_element(SpaceOops *soops, ListBase *lb, void *idv, 
 										 TreeElement *parent, short type, short index);
 
-#define LOG2I(x) (int)(log(x)/log(2.0))
+#define LOG2I(x) (int)(log(x)/M_LN2)
 
 static void outliner_add_passes(SpaceOops *soops, TreeElement *tenla, ID *id, SceneRenderLayer *srl)
 {

Modified: trunk/blender/source/blender/render/intern/source/sunsky.c
===================================================================
--- trunk/blender/source/blender/render/intern/source/sunsky.c	2011-06-09 13:46:34 UTC (rev 37335)
+++ trunk/blender/source/blender/render/intern/source/sunsky.c	2011-06-09 14:27:51 UTC (rev 37336)
@@ -460,7 +460,7 @@
 	vec3opv(sunSky->atm_BetaRM, sunSky->atm_BetaRay, +, sunSky->atm_BetaMie);
 	
 	//e^(-(beta_1 + beta_2) * s) = E1
-	vec3opf(E1, sunSky->atm_BetaRM, *, -s/log(2));
+	vec3opf(E1, sunSky->atm_BetaRM, *, -s/M_LN2);
 	E1[0] = exp(E1[0]);
 	E1[1] = exp(E1[1]);
 	E1[2] = exp(E1[2]);

Modified: trunk/blender/source/gameengine/Converter/KX_ConvertActuators.cpp
===================================================================
--- trunk/blender/source/gameengine/Converter/KX_ConvertActuators.cpp	2011-06-09 13:46:34 UTC (rev 37335)
+++ trunk/blender/source/gameengine/Converter/KX_ConvertActuators.cpp	2011-06-09 14:27:51 UTC (rev 37336)
@@ -397,7 +397,7 @@
 						new KX_SoundActuator(gameobj,
 						snd_sound,
 						soundact->volume,
-						(float)(exp((soundact->pitch / 12.0) * log(2.0))),
+						(float)(exp((soundact->pitch / 12.0) * M_LN2)),
 						is3d,
 						settings,
 						soundActuatorType);