use NULL rather then 0 for pointer assignments & comparison, modifier, imbuf & editors.

1 files changed, 25 insertions, 25 deletions

diff --git a/source/blender/imbuf/intern/scaling.c b/source/blender/imbuf/intern/scaling.c
index fbea72bfafc..64a9603610b 100644
--- a/source/blender/imbuf/intern/scaling.c
+++ b/source/blender/imbuf/intern/scaling.c
@@ -59,8 +59,8 @@ struct ImBuf *IMB_half_x(struct ImBuf *ibuf1)
 	float af,rf,gf,bf, *p1f, *_p1f, *destf;
 	int do_rect, do_float;
 
-	if (ibuf1==NULL) return (0);
-	if (ibuf1->rect==NULL && ibuf1->rect_float==NULL) return (0);
+	if (ibuf1==NULL) return (NULL);
+	if (ibuf1->rect==NULL && ibuf1->rect_float==NULL) return (NULL);
 
 	do_rect= (ibuf1->rect != NULL);
 	do_float= (ibuf1->rect_float != NULL);
@@ -68,7 +68,7 @@ struct ImBuf *IMB_half_x(struct ImBuf *ibuf1)
 	if (ibuf1->x <= 1) return(IMB_dupImBuf(ibuf1));
 	
 	ibuf2 = IMB_allocImBuf((ibuf1->x)/2, ibuf1->y, ibuf1->depth, ibuf1->flags);
-	if (ibuf2==NULL) return (0);
+	if (ibuf2==NULL) return (NULL);
 
 	_p1 = (uchar *) ibuf1->rect;
 	dest=(uchar *) ibuf2->rect;
@@ -122,14 +122,14 @@ struct ImBuf *IMB_double_fast_x(struct ImBuf *ibuf1)
 	int *p1,*dest, i, col, do_rect, do_float;
 	float *p1f, *destf;
 
-	if (ibuf1==NULL) return (0);
-	if (ibuf1->rect==NULL && ibuf1->rect_float==NULL) return (0);
+	if (ibuf1==NULL) return (NULL);
+	if (ibuf1->rect==NULL && ibuf1->rect_float==NULL) return (NULL);
 
 	do_rect= (ibuf1->rect != NULL);
 	do_float= (ibuf1->rect_float != NULL);
 	
 	ibuf2 = IMB_allocImBuf(2 * ibuf1->x , ibuf1->y , ibuf1->depth, ibuf1->flags);
-	if (ibuf2==NULL) return (0);
+	if (ibuf2==NULL) return (NULL);
 
 	p1 = (int *) ibuf1->rect;
 	dest=(int *) ibuf2->rect;
@@ -159,8 +159,8 @@ struct ImBuf *IMB_double_x(struct ImBuf *ibuf1)
 {
 	struct ImBuf *ibuf2;
 
-	if (ibuf1==NULL) return (0);
-	if (ibuf1->rect==NULL && ibuf1->rect_float==NULL) return (0);
+	if (ibuf1==NULL) return (NULL);
+	if (ibuf1->rect==NULL && ibuf1->rect_float==NULL) return (NULL);
 
 	ibuf2 = IMB_double_fast_x(ibuf1);
 
@@ -179,15 +179,15 @@ struct ImBuf *IMB_half_y(struct ImBuf *ibuf1)
 
 	p1= p2= NULL;
 	p1f= p2f= NULL;
-	if (ibuf1==NULL) return (0);
-	if (ibuf1->rect==NULL && ibuf1->rect_float==NULL) return (0);
+	if (ibuf1==NULL) return (NULL);
+	if (ibuf1->rect==NULL && ibuf1->rect_float==NULL) return (NULL);
 	if (ibuf1->y <= 1) return(IMB_dupImBuf(ibuf1));
 
 	do_rect= (ibuf1->rect != NULL);
 	do_float= (ibuf1->rect_float != NULL);
 
 	ibuf2 = IMB_allocImBuf(ibuf1->x , (ibuf1->y) / 2 , ibuf1->depth, ibuf1->flags);
-	if (ibuf2==NULL) return (0);
+	if (ibuf2==NULL) return (NULL);
 
 	_p1 = (uchar *) ibuf1->rect;
 	dest=(uchar *) ibuf2->rect;
@@ -248,14 +248,14 @@ struct ImBuf *IMB_double_fast_y(struct ImBuf *ibuf1)
 	short x,y;
 	int do_rect, do_float;
 
-	if (ibuf1==NULL) return (0);
-	if (ibuf1->rect==NULL && ibuf1->rect_float==NULL) return (0);
+	if (ibuf1==NULL) return (NULL);
+	if (ibuf1->rect==NULL && ibuf1->rect_float==NULL) return (NULL);
 
 	do_rect= (ibuf1->rect != NULL);
 	do_float= (ibuf1->rect_float != NULL);
 
 	ibuf2 = IMB_allocImBuf(ibuf1->x , 2 * ibuf1->y , ibuf1->depth, ibuf1->flags);
-	if (ibuf2==NULL) return (0);
+	if (ibuf2==NULL) return (NULL);
 
 	p1 = (int *) ibuf1->rect;
 	dest1= (int *) ibuf2->rect;
@@ -282,8 +282,8 @@ struct ImBuf *IMB_double_y(struct ImBuf *ibuf1)
 {
 	struct ImBuf *ibuf2;
 
-	if (ibuf1==NULL) return (0);
-	if (ibuf1->rect==NULL) return (0);
+	if (ibuf1==NULL) return (NULL);
+	if (ibuf1->rect==NULL) return (NULL);
 
 	ibuf2 = IMB_double_fast_y(ibuf1);
 	
@@ -345,14 +345,14 @@ struct ImBuf *IMB_onehalf(struct ImBuf *ibuf1)
 {
 	struct ImBuf *ibuf2;
 
-	if (ibuf1==NULL) return (0);
-	if (ibuf1->rect==NULL && ibuf1->rect_float==NULL) return (0);
+	if (ibuf1==NULL) return (NULL);
+	if (ibuf1->rect==NULL && ibuf1->rect_float==NULL) return (NULL);
 	
 	if (ibuf1->x <= 1) return(IMB_half_y(ibuf1));
 	if (ibuf1->y <= 1) return(IMB_half_x(ibuf1));
 	
 	ibuf2=IMB_allocImBuf((ibuf1->x)/2, (ibuf1->y)/2, ibuf1->depth, ibuf1->flags);
-	if (ibuf2==NULL) return (0);
+	if (ibuf2==NULL) return (NULL);
 	
 	imb_onehalf_no_alloc(ibuf2, ibuf1);
 	
@@ -838,7 +838,7 @@ static struct ImBuf *scaledownx(struct ImBuf *ibuf, int newx)
 	nval[0]=  nval[1]= nval[2]= nval[3]= 0.0f;
 	nvalf[0]=nvalf[1]=nvalf[2]=nvalf[3]= 0.0f;
 	
-	if (ibuf==NULL) return(0);
+	if (ibuf==NULL) return(NULL);
 	if (ibuf->rect==NULL && ibuf->rect_float==NULL) return (ibuf);
 
 	if (ibuf->rect) {
@@ -962,7 +962,7 @@ static struct ImBuf *scaledowny(struct ImBuf *ibuf, int newy)
 	nval[0]=  nval[1]= nval[2]= nval[3]= 0.0f;
 	nvalf[0]=nvalf[1]=nvalf[2]=nvalf[3]= 0.0f;
 
-	if (ibuf==NULL) return(0);
+	if (ibuf==NULL) return(NULL);
 	if (ibuf->rect==NULL && ibuf->rect_float==NULL) return (ibuf);
 
 	if (ibuf->rect) {
@@ -1094,7 +1094,7 @@ static struct ImBuf *scaleupx(struct ImBuf *ibuf, int newx)
 	val_g = nval_g = diff_g = val_r = nval_r = diff_r = 0;
 	val_af = nval_af = diff_af = val_bf = nval_bf = diff_bf = 0;
 	val_gf = nval_gf = diff_gf = val_rf = nval_rf = diff_rf = 0;
-	if (ibuf==NULL) return(0);
+	if (ibuf==NULL) return(NULL);
 	if (ibuf->rect==NULL && ibuf->rect_float==NULL) return (ibuf);
 
 	if (ibuf->rect) {
@@ -1261,7 +1261,7 @@ static struct ImBuf *scaleupy(struct ImBuf *ibuf, int newy)
 	val_g = nval_g = diff_g = val_r = nval_r = diff_r = 0;
 	val_af = nval_af = diff_af = val_bf = nval_bf = diff_bf = 0;
 	val_gf = nval_gf = diff_gf = val_rf = nval_rf = diff_rf = 0;
-	if (ibuf==NULL) return(0);
+	if (ibuf==NULL) return(NULL);
 	if (ibuf->rect==NULL && ibuf->rect_float==NULL) return (ibuf);
 
 	if (ibuf->rect) {
@@ -1453,7 +1453,7 @@ static void scalefast_Z_ImBuf(ImBuf *ibuf, short newx, short newy)
 
 struct ImBuf *IMB_scaleImBuf(struct ImBuf * ibuf, unsigned int newx, unsigned int newy)
 {
-	if (ibuf==NULL) return (0);
+	if (ibuf==NULL) return (NULL);
 	if (ibuf->rect==NULL && ibuf->rect_float==NULL) return (ibuf);
 	
 	if (newx == ibuf->x && newy == ibuf->y) { return ibuf; }
@@ -1490,7 +1490,7 @@ struct ImBuf *IMB_scalefastImBuf(struct ImBuf *ibuf, unsigned int newx, unsigned
 	rect = NULL; _newrect = NULL; newrect = NULL;
 	rectf = NULL; _newrectf = NULL; newrectf = NULL;
 
-	if (ibuf==NULL) return(0);
+	if (ibuf==NULL) return(NULL);
 	if (ibuf->rect) do_rect = 1;
 	if (ibuf->rect_float) do_float = 1;
 	if (do_rect==0 && do_float==0) return(ibuf);