diff --git a/Lib/rgbmask.c b/Lib/rgbmask.c
index a96a609..cf89e59 100644
--- a/Lib/rgbmask.c
+++ b/Lib/rgbmask.c
@@ -16,25 +16,20 @@
 /*
  *	horizontal lines
  */
-int
-Image_rgbmask_H(Image_Desc *src, Image_Desc *dst, int gris)
+int Image_rgbmask_H(Image_Desc *src, Image_Desc *dst, int gris)
 {
 int  foo, x, y;
 
-if ( (foo=Image_compare_desc(src, dst)) )
-    {
+if ( (foo=Image_compare_desc(src, dst)) ) {
     fprintf(stderr, "%s : images are differents %d\n", __func__, foo);
     return foo;
     }
 
 Image_copy(src, dst);		/* XXX pourquoi cette copie ? */
 
-for (y=0; y<src->height; y++)
-	{
-	for (x=0; x<src->width; x++)
-		{
-		switch (y%3)
-			{
+for (y=0; y<src->height; y++) {
+	for (x=0; x<src->width; x++) {
+		switch (y%3) {
 			case 0:
 				Image_plot_channel(dst, 'r', x, y, gris);
 				Image_plot_channel(dst, 'g', x, y, gris);
@@ -57,25 +52,19 @@ return FUNC_IS_BETA;
 /*
  *	vertical lines
  */
-int
-Image_rgbmask_V(Image_Desc *src, Image_Desc *dst, int gris)
+int Image_rgbmask_V(Image_Desc *src, Image_Desc *dst, int gris)
 {
 int  foo, x, y;
 
-if ( (foo=Image_compare_desc(src, dst)) )
-    {
+if ( (foo=Image_compare_desc(src, dst)) ) {
     fprintf(stderr, "Image rgbmask V: images are differents %d\n", foo);
     return foo;
     }
-
 Image_copy(src, dst);
 
-for (y=0; y<src->height; y++)
-	{
-	for (x=0; x<src->width; x++)
-		{
-		switch (x%3)
-			{
+for (y=0; y<src->height; y++) {
+	for (x=0; x<src->width; x++) {
+		switch (x%3) {
 			case 0:
 				Image_plot_channel(dst, 'r', x, y, gris);
 				Image_plot_channel(dst, 'g', x, y, gris);
@@ -98,26 +87,21 @@ return FUNC_IS_BETA;
 /*
  *	sequential dots - _very_ dependant on image dimensions.
  */
-int
-Image_rgbmask_2(Image_Desc *src, Image_Desc *dst, int gris)
+int Image_rgbmask_2(Image_Desc *src, Image_Desc *dst, int gris)
 {
 int  foo, x, y;
 
-if ( (foo=Image_compare_desc(src, dst)) )
-    {
+if ( (foo=Image_compare_desc(src, dst)) ) {
     fprintf(stderr, "Image rgbmask 2: images are differents %d\n", foo);
     return foo;
     }
 Image_copy(src, dst);
 
 foo = 0;
-for (y=0; y<src->height; y++)
-	{
-	for (x=0; x<src->width; x++)
-		{
+for (y=0; y<src->height; y++) {
+	for (x=0; x<src->width; x++) {
 		foo++;
-		switch (foo%3)
-			{
+		switch (foo%3) {
 			case 0:
 				Image_plot_channel(dst, 'r', x, y, gris);
 				Image_plot_channel(dst, 'g', x, y, gris);
@@ -140,8 +124,7 @@ return FUNC_IS_BETA;
 /*
  *	random dots - VERY BAD RESULTS :(
  */
-int
-Image_rgbmask_R(Image_Desc *src, Image_Desc *dst, int gris)
+int Image_rgbmask_R(Image_Desc *src, Image_Desc *dst, int gris)
 {
 int  foo, x, y;
 
@@ -149,20 +132,16 @@ int  foo, x, y;
 fprintf(stderr, "this function, %s(%d), is very buggy...\n", __func__, gris);
 #endif
 
-if ( (foo=Image_compare_desc(src, dst)) )
-    {
+if ( (foo=Image_compare_desc(src, dst)) ) {
     fprintf(stderr, "Image rgbmask R: images are differents %d\n", foo);
     return foo;
     }
 Image_copy(src, dst);
 
-for (y=0; y<src->height; y++)
-	{
-	for (x=0; x<src->width; x++)
-		{
+for (y=0; y<src->height; y++) {
+	for (x=0; x<src->width; x++) {
 		foo = rand() % 3;	/* mmmm pas tres bon :( */
-		switch (foo)
-			{
+		switch (foo) {
 			case 0:
 				Image_plot_channel(dst, 'r', x, y, gris);
 				Image_plot_channel(dst, 'g', x, y, gris);