Code Cleanup: avoid double promotion.

source/blender/blenfont/intern/blf_glyph.c

@@ -305,7 +305,7 @@ static void blf_texture_draw(float uv[2][2], float dx, float y1, float dx1, floa
 	/* When a string is being rendered as individual glyphs (as in the game
 	 * engine), the leading edge needs to be raised a fraction to prevent
 	 * z-fighting for kerned characters. - z0r */
-	float twist = (dx1 - dx) * 0.0002;
+	const float twist = (dx1 - dx) * 0.0002f;
 
 	glBegin(GL_QUADS);
 	glTexCoord2f(uv[0][0], uv[0][1]);

source/blender/blenkernel/intern/cloth.c

@@ -1151,7 +1151,7 @@ static int cloth_build_springs ( ClothModifierData *clmd, DerivedMesh *dm )
 		spring->kl = MAX2(mface[i].v4, mface[i].v2);
 		spring->restlen = len_v3v3(cloth->verts[spring->kl].xrest, cloth->verts[spring->ij].xrest);
 		spring->type = CLOTH_SPRING_TYPE_SHEAR;
-		spring->stiffness = (cloth->verts[spring->kl].shear_stiff + cloth->verts[spring->ij].shear_stiff) / 2.0;
+		spring->stiffness = (cloth->verts[spring->kl].shear_stiff + cloth->verts[spring->ij].shear_stiff) / 2.0f;
 
 		BLI_linklist_append ( &edgelist[spring->ij], spring );
 		BLI_linklist_append ( &edgelist[spring->kl], spring );

source/blender/blenkernel/intern/constraint.c

@@ -492,7 +492,7 @@ static void contarget_get_mesh_mat (Object *ob, const char *substring, float mat
 			copy_v3_v3(plane, tmat[1]);
 			
 			cross_v3_v3v3(mat[0], normal, plane);
-			if(len_v3(mat[0]) < 1e-3) {
+			if(len_v3(mat[0]) < 1e-3f) {
 				copy_v3_v3(plane, tmat[0]);
 				cross_v3_v3v3(mat[0], normal, plane);
 			}
@@ -1263,7 +1263,7 @@ static void followpath_get_tarmat (bConstraint *con, bConstraintOb *cob, bConstr
 					/* If the curve is cyclic, enable looping around if the time is
 					 * outside the bounds 0..1 */
 					if ((curvetime < 0.0f) || (curvetime > 1.0f)) {
-						curvetime -= floor(curvetime);
+						curvetime -= floorf(curvetime);
 					}
 				}
 				else {

source/blender/blenkernel/intern/fcurve.c

@@ -1987,7 +1987,7 @@ static float fcurve_eval_keyframes (FCurve *fcu, BezTriple *bezts, float evaltim
 		for (a=0; prevbezt && bezt && (a < fcu->totvert-1); a++, prevbezt=bezt, bezt++) 
 		{
 			/* use if the key is directly on the frame, rare cases this is needed else we get 0.0 instead. */
-			if(fabs(bezt->vec[1][0] - evaltime) < SMALL_NUMBER) {
+			if(fabsf(bezt->vec[1][0] - evaltime) < SMALL_NUMBER) {
 				cvalue= bezt->vec[1][1];
 			}
 			/* evaltime occurs within the interval defined by these two keyframes */

source/blender/blenkernel/intern/seqeffects.c

@@ -1583,7 +1583,7 @@ typedef struct WipeZone {
 static void precalc_wipe_zone(WipeZone *wipezone, WipeVars *wipe, int xo, int yo)
 {
 	wipezone->flip = (wipe->angle < 0);
-	wipezone->angle = tan(DEG2RAD(fabsf(wipe->angle)));
+	wipezone->angle = tanf(DEG2RADF(fabsf(wipe->angle)));
 	wipezone->xo = xo;
 	wipezone->yo = yo;
 	wipezone->width = (int)(wipe->edgeWidth*((xo+yo)/2.0f));
@@ -1602,9 +1602,9 @@ static float in_band(float width,float dist,int side,int dir)
 		return (float)side;
 
 	if(side == 1)
-		alpha = (dist+0.5*width) / (width);
+		alpha = (dist+0.5f*width) / (width);
 	else
-		alpha = (0.5*width-dist) / (width);
+		alpha = (0.5f*width-dist) / (width);
 
 	if(dir == 0)
 		alpha = 1-alpha;

source/blender/blenlib/intern/math_color.c

@@ -561,7 +561,7 @@ void BLI_init_srgb_conversion(void)
 	for (i = 0; i < 0x10000; i++) {
 		float f = linearrgb_to_srgb(index_to_float(i))*255.0f;
 		if (f <= 0) BLI_color_to_srgb_table[i] = 0;
-		else if (f < 255) BLI_color_to_srgb_table[i] = (unsigned short)(f*0x100+.5);
+		else if (f < 255) BLI_color_to_srgb_table[i] = (unsigned short)(f*0x100+0.5f);
 		else BLI_color_to_srgb_table[i] = 0xff00;
 	}
 

source/blender/editors/interface/interface_draw.c

@@ -1533,8 +1533,8 @@ void ui_draw_but_TRACKPREVIEW(ARegion *ar, uiBut *but, uiWidgetColors *UNUSED(wc
 			zoomx= (float)width / (scopes->track_preview->x-2*margin);
 			zoomy= (float)height / (scopes->track_preview->y-2*margin);
 
-			off_x= ((int)track_pos[0]-track_pos[0]+0.5)*zoomx;
-			off_y= ((int)track_pos[1]-track_pos[1]+0.5)*zoomy;
+			off_x= ((int)track_pos[0]-track_pos[0]+0.5f)*zoomx;
+			off_y= ((int)track_pos[1]-track_pos[1]+0.5f)*zoomy;
 
 			drawibuf= scale_trackpreview_ibuf(scopes->track_preview, track_pos, width, height, margin);
 

source/blender/editors/physics/physics_fluid.c

@@ -109,7 +109,7 @@ static float get_fluid_viscosity(FluidsimSettings *settings)
 			return 2.0e-3;
 		case 1:		/* manual */
 		default:
-			return (1.0/pow(10.0, settings->viscosityExponent)) * settings->viscosityValue;
+			return (1.0f/powf(10.0f, settings->viscosityExponent)) * settings->viscosityValue;
 	}
 }
 

source/blender/editors/sculpt_paint/sculpt.c

@@ -3153,7 +3153,7 @@ static void sculpt_update_cache_variants(bContext *C, Sculpt *sd, Object *ob,
 		dx = cache->mouse[0] - cache->initial_mouse[0];
 		dy = cache->mouse[1] - cache->initial_mouse[1];
 
-		cache->vertex_rotation = -atan2(dx, dy) * cache->bstrength;
+		cache->vertex_rotation = -atan2f(dx, dy) * cache->bstrength;
 
 		sd->draw_anchored = 1;
 		copy_v2_v2(sd->anchored_initial_mouse, cache->initial_mouse);

source/blender/editors/space_clip/clip_graph_ops.c

@@ -450,7 +450,7 @@ void CLIP_OT_graph_view_all(wmOperatorType *ot)
 void ED_clip_graph_center_current_frame(Scene *scene, ARegion *ar)
 {
 	View2D *v2d = &ar->v2d;
-	float extra = (v2d->cur.xmax - v2d->cur.xmin) / 2.0;
+	float extra = (v2d->cur.xmax - v2d->cur.xmin) / 2.0f;
 
 	/* set extents of view to start/end frames */
 	v2d->cur.xmin = (float)CFRA - extra;

source/blender/editors/space_sequencer/sequencer_scopes.c

@@ -170,7 +170,7 @@ static struct ImBuf *make_waveform_view_from_ibuf_byte(struct ImBuf * ibuf)
 
 		for (x = 0; x < ibuf->x; x++) {
 			unsigned char * rgb = src + 4 * (ibuf->x * y + x);
-			float v = (float)rgb_to_luma_byte(rgb) / 255.0;
+			float v = (float)rgb_to_luma_byte(rgb) / 255.0f;
 			unsigned char * p = tgt;
 			p += 4 * (w * ((int) (v * (h - 3)) + 1) + x + 1);
 

source/blender/editors/transform/transform.c

@@ -5566,9 +5566,9 @@ static void headerTimeTranslate(TransInfo *t, char *str)
 		/* apply snapping + frame->seconds conversions */
 		if (autosnap == SACTSNAP_STEP) {
 			if (doTime)
-				val= floor((double)val/secf + 0.5f);
+				val= floorf((double)val/secf + 0.5f);
 			else
-				val= floor(val + 0.5f);
+				val= floorf(val + 0.5f);
 		}
 		else {
 			if (doTime)

source/blender/modifiers/intern/MOD_meshdeform.c

@@ -298,7 +298,7 @@ static void meshdeformModifier_do(
 				fac= 1.0f - fac;
 			}
 
-			if (fac <= 0.0) {
+			if (fac <= 0.0f) {
 				continue;
 			}
 		}

source/blender/render/intern/source/occlusion.c

@@ -1408,7 +1408,7 @@ static void sample_occ_tree(Render *re, OcclusionTree *tree, OccFace *exclude, f
 	occlusion= (1.0f-correction)*(1.0f-occ);
 	CLAMP(occlusion, 0.0f, 1.0f);
 	if(correction != 0.0f)
-		occlusion += correction*exp(-occ);
+		occlusion += correction*expf(-occ);
 
 	if(env) {
 		/* sky shading using bent normal */

source/blender/render/intern/source/zbuf.c

@@ -245,7 +245,7 @@ int testclip(const float v[4])
 	
 	/* if we set clip flags, the clipping should be at least larger than epsilon. 
 	   prevents issues with vertices lying exact on borders */
-	abs4= fabs(v[3]) + FLT_EPSILON;
+	abs4= fabsf(v[3]) + FLT_EPSILON;
 	
 	if( v[0] < -abs4) c+=1;
 	else if( v[0] > abs4) c+=2;