optimize cumul videograb

v4l2/funcs.h

@@ -8,6 +8,8 @@ int init_device(int notused);
 
 /* --------------------------------------------------------------------- */
 
+int x_add_rgb2fimg(unsigned char *src, int w, int h, FloatImg *d);
+
 int x_rgb2fimg(unsigned char *src, int w, int h, FloatImg *d);
 int x_rgb2file(unsigned char *src, int w, int h, char *fname);
 

v4l2/grabvidseq.c

@@ -220,7 +220,7 @@ for (i = 0; i < nbre_capt; i++) {
 		}
 
 	if(verbosity > 1) {
-		printf("%6d   %5.3f\n", i, fimg_timer_get(0));
+		printf("%6d   %9.3f\n", i, fimg_timer_get(0));
 		}
 
 
@@ -246,9 +246,15 @@ for (i = 0; i < nbre_capt; i++) {
 #endif
 
 #if SAVE_AS_CUMUL
+	/**
 	x_rgb2fimg(buffers[buf.index].start,
 		fmt.fmt.pix.width, fmt.fmt.pix.height, &grab);
 	fimg_add(&grab, &cumul, &cumul);
+	**/
+	x_add_rgb2fimg(buffers[buf.index].start,
+		fmt.fmt.pix.width, fmt.fmt.pix.height, &cumul);
+
+
 #endif
 
 #if SAVE_AS_FIMG

v4l2/rgb2fimg.c

@@ -9,11 +9,11 @@
 int x_upscaler(unsigned char *src, int w, int h, FloatImg *d)
 {
 int				x, y, xx, yy;
-float				*rp, *gp, *bp;
+// float				*rp, *gp, *bp;
 float				r, g, b;
 static unsigned short		modz;
 
-rp = d->R, gp = d->G, bp = d->B;
+// rp = d->R, gp = d->G, bp = d->B;
 
 for (y=0; y<h; y++) {
 	yy = (y*2) + ! (modz & 1);
@@ -49,6 +49,23 @@ for (iter=0; iter<size; iter++) {
 return 0;
 }
 /* --------------------------------------------------------------------- */
+/* --------------------------------------------------------------------- */
+int x_add_rgb2fimg(unsigned char *src, int w, int h, FloatImg *d)
+{
+int			iter, size;
+float			*rp, *gp, *bp;
+
+size = w * h;
+rp = d->R, gp = d->G, bp = d->B;
+
+for (iter=0; iter<size; iter++) {
+	*rp++ += (float)*src++;
+	*gp++ += (float)*src++;
+	*bp++ += (float)*src++;
+	}
+
+return 0;
+}
 int x_rgb2file(unsigned char *src, int w, int h, char *fname)
 {
 FloatImg		buff;