Move local implementation of trig function to internal header

Previously these were only used for shadings in test builds.
By the same argument that they are applied for shadings, it
can be argued that they ought to be applied everywhere trig
functions are used.

1 files changed, 0 insertions, 146 deletions

diff --git a/draw/draw_mesh.c b/draw/draw_mesh.c
index 885a6944..8a181235 100644
--- a/draw/draw_mesh.c
+++ b/draw/draw_mesh.c
@@ -1,151 +1,5 @@
 #include "fitz-internal.h"
 
-#ifdef CLUSTER
-#define LOCAL_TRIG_FNS
-#endif
-
-#ifdef LOCAL_TRIG_FNS
-/*
- * Trig functions
- */
-static float
-my_atan_table[258] =
-{
-0.0000000000f, 0.00390623013f,0.00781234106f,0.0117182136f,
-0.0156237286f, 0.0195287670f, 0.0234332099f, 0.0273369383f,
-0.0312398334f, 0.0351417768f, 0.0390426500f, 0.0429423347f,
-0.0468407129f, 0.0507376669f, 0.0546330792f, 0.0585268326f,
-0.0624188100f, 0.0663088949f, 0.0701969711f, 0.0740829225f,
-0.0779666338f, 0.0818479898f, 0.0857268758f, 0.0896031775f,
-0.0934767812f, 0.0973475735f, 0.1012154420f, 0.1050802730f,
-0.1089419570f, 0.1128003810f, 0.1166554350f, 0.1205070100f,
-0.1243549950f, 0.1281992810f, 0.1320397620f, 0.1358763280f,
-0.1397088740f, 0.1435372940f, 0.1473614810f, 0.1511813320f,
-0.1549967420f, 0.1588076080f, 0.1626138290f, 0.1664153010f,
-0.1702119250f, 0.1740036010f, 0.1777902290f, 0.1815717110f,
-0.1853479500f, 0.1891188490f, 0.1928843120f, 0.1966442450f,
-0.2003985540f, 0.2041471450f, 0.2078899270f, 0.2116268090f,
-0.2153577000f, 0.2190825110f, 0.2228011540f, 0.2265135410f,
-0.2302195870f, 0.2339192060f, 0.2376123140f, 0.2412988270f,
-0.2449786630f, 0.2486517410f, 0.2523179810f, 0.2559773030f,
-0.2596296290f, 0.2632748830f, 0.2669129880f, 0.2705438680f,
-0.2741674510f, 0.2777836630f, 0.2813924330f, 0.2849936890f,
-0.2885873620f, 0.2921733830f, 0.2957516860f, 0.2993222020f,
-0.3028848680f, 0.3064396190f, 0.3099863910f, 0.3135251230f,
-0.3170557530f, 0.3205782220f, 0.3240924700f, 0.3275984410f,
-0.3310960770f, 0.3345853220f, 0.3380661230f, 0.3415384250f,
-0.3450021770f, 0.3484573270f, 0.3519038250f, 0.3553416220f,
-0.3587706700f, 0.3621909220f, 0.3656023320f, 0.3690048540f,
-0.3723984470f, 0.3757830650f, 0.3791586690f, 0.3825252170f,
-0.3858826690f, 0.3892309880f, 0.3925701350f, 0.3959000740f,
-0.3992207700f, 0.4025321870f, 0.4058342930f, 0.4091270550f,
-0.4124104420f, 0.4156844220f, 0.4189489670f, 0.4222040480f,
-0.4254496370f, 0.4286857080f, 0.4319122350f, 0.4351291940f,
-0.4383365600f, 0.4415343100f, 0.4447224240f, 0.4479008790f,
-0.4510696560f, 0.4542287350f, 0.4573780990f, 0.4605177290f,
-0.4636476090f, 0.4667677240f, 0.4698780580f, 0.4729785980f,
-0.4760693300f, 0.4791502430f, 0.4822213240f, 0.4852825630f,
-0.4883339510f, 0.4913754780f, 0.4944071350f, 0.4974289160f,
-0.5004408130f, 0.5034428210f, 0.5064349340f, 0.5094171490f,
-0.5123894600f, 0.5153518660f, 0.5183043630f, 0.5212469510f,
-0.5241796290f, 0.5271023950f, 0.5300152510f, 0.5329181980f,
-0.5358112380f, 0.5386943730f, 0.5415676050f, 0.5444309400f,
-0.5472843810f, 0.5501279330f, 0.5529616020f, 0.5557853940f,
-0.5585993150f, 0.5614033740f, 0.5641975770f, 0.5669819340f,
-0.5697564530f, 0.5725211450f, 0.5752760180f, 0.5780210840f,
-0.5807563530f, 0.5834818390f, 0.5861975510f, 0.5889035040f,
-0.5915997100f, 0.5942861830f, 0.5969629370f, 0.5996299860f,
-0.6022873460f, 0.6049350310f, 0.6075730580f, 0.6102014430f,
-0.6128202020f, 0.6154293530f, 0.6180289120f, 0.6206188990f,
-0.6231993300f, 0.6257702250f, 0.6283316020f, 0.6308834820f,
-0.6334258830f, 0.6359588250f, 0.6384823300f, 0.6409964180f,
-0.6435011090f, 0.6459964250f, 0.6484823880f, 0.6509590190f,
-0.6534263410f, 0.6558843770f, 0.6583331480f, 0.6607726790f,
-0.6632029930f, 0.6656241120f, 0.6680360620f, 0.6704388650f,
-0.6728325470f, 0.6752171330f, 0.6775926450f, 0.6799591110f,
-0.6823165550f, 0.6846650020f, 0.6870044780f, 0.6893350100f,
-0.6916566220f, 0.6939693410f, 0.6962731940f, 0.6985682070f,
-0.7008544080f, 0.7031318220f, 0.7054004770f, 0.7076604000f,
-0.7099116190f, 0.7121541600f, 0.7143880520f, 0.7166133230f,
-0.7188300000f, 0.7210381110f, 0.7232376840f, 0.7254287490f,
-0.7276113330f, 0.7297854640f, 0.7319511710f, 0.7341084830f,
-0.7362574290f, 0.7383980370f, 0.7405303370f, 0.7426543560f,
-0.7447701260f, 0.7468776740f, 0.7489770290f, 0.7510682220f,
-0.7531512810f, 0.7552262360f, 0.7572931160f, 0.7593519510f,
-0.7614027700f, 0.7634456020f, 0.7654804790f, 0.7675074280f,
-0.7695264800f, 0.7715376650f, 0.7735410110f, 0.7755365500f,
-0.7775243100f, 0.7795043220f, 0.7814766150f, 0.7834412190f,
-0.7853981630f, 0.7853981630f /* Extended by 1 for interpolation */
-};
-
-float my_sinf(float x)
-{
-	float x2, xn;
-	int i;
-	/* Map x into the -PI to PI range. We could do this using:
-	 * x = fmodf(x, (float)(2.0 * M_PI));
-	 * but that's C99, and seems to misbehave with negative numbers
-	 * on some platforms. */
-	x -= (float)M_PI;
-	i = x / (float)(2.0f * M_PI);
-	x -= i * (float)(2.0f * M_PI);
-	if (x < 0.0f)
-		x += (float)(2.0f * M_PI);
-	x -= (float)M_PI;
-	if (x <= (float)(-M_PI/2.0))
-		x = -(float)M_PI-x;
-	else if (x >= (float)(M_PI/2.0))
-		x = (float)M_PI-x;
-	x2 = x*x;
-	xn = x*x2/6.0f;
-	x -= xn;
-	xn *= x2/20.0f;
-	x += xn;
-	xn *= x2/42.0f;
-	x -= xn;
-	xn *= x2/72.0f;
-	x += xn;
-	return x;
-}
-
-float my_atan2f(float o, float a)
-{
-	int negate = 0, flip = 0, i;
-	float r, s;
-	if (o == 0.0f)
-	{
-		if (a > 0)
-			return 0.0f;
-		else
-			return (float)M_PI;
-	}
-	if (o < 0)
-		o = -o, negate = 1;
-	if (a < 0)
-		a = -a, flip = 1;
-	if (o < a)
-		i = (int)(65536.0f*o/a + 0.5f);
-	else
-		i = (int)(65536.0f*a/o + 0.5f);
-	r = my_atan_table[i>>8];
-	s = my_atan_table[(i>>8)+1];
-	r += (s-r)*(i&255)/256.0f;
-	if (o >= a)
-		r = (float)(M_PI/2.0f) - r;
-	if (flip)
-		r = (float)M_PI - r;
-	if (negate)
-		r = -r;
-	return r;
-}
-
-#define my_cosf(x) my_sinf(((float)(M_PI/2.0f)) + (x))
-#else
-#define my_sinf(x) sinf(x)
-#define my_cosf(x) cosf(x)
-#define my_atan2f(x,y) atan2f(x,y)
-#endif
-
 /*
  * polygon clipping
  */