X-Git-Url: https://cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fcinelerra%2Ftrackcanvas.C;h=fc31969dc170aea124aa9b12af82211a1d0bbd66;hb=c8ada3e79b5bf9b8282bdcc8fe858f24c6ac0715;hp=a4faec2b9de802c3f6e168b833bebe443740bea2;hpb=b5bfe3e40a7255ae60a21d885587ada6e145e3d5;p=goodguy%2Fcinelerra.git

diff --git a/cinelerra-5.1/cinelerra/trackcanvas.C b/cinelerra-5.1/cinelerra/trackcanvas.C
index a4faec2b..fc31969d 100644
--- a/cinelerra-5.1/cinelerra/trackcanvas.C
+++ b/cinelerra-5.1/cinelerra/trackcanvas.C
@@ -2781,6 +2781,24 @@ int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
 	return result;
 }
 
+static int is_linear(FloatAuto *prev, FloatAuto *next)
+{
+	if( !prev || !next ) return 1;
+	if( prev->curve_mode == FloatAuto::LINEAR ) return 1;
+	int64_t ipos = prev->get_control_in_position();
+	int64_t opos = prev->get_control_out_position();
+	if( !ipos && !opos ) return 1;
+	if( !ipos || !opos ) return 0;
+	float ival = prev->get_control_in_value();
+	float oval = prev->get_control_out_value();
+	float cval = prev->get_value(), nval = next->get_value();
+	if( !ival && !oval && EQUIV(cval, nval) ) return 1;
+	float ig = ival / ipos, og = oval / opos;
+	int64_t cpos = prev->position, npos = next->position;
+	float g = (nval - cval) / (npos - cpos);
+	if( EQUIV(ig, g) && EQUIV(og, g) ) return 1;
+	return 0;
+}
 
 // Get the float value & y for position x on the canvas
 #define X_TO_FLOATLINE(x) \
@@ -2813,45 +2831,45 @@ void TrackCanvas::draw_floatline(int center_pixel,
 	int x1, int y1, int x2, int y2,
 	int color, int autogrouptype)
 {
+	int ytop = center_pixel - yscale / 2;
+	int ybot = center_pixel + yscale / 2 - 1;
+	y1 += center_pixel;  y2 += center_pixel;
+	if( (y1 < ytop && y1 >= ybot) && (y2 < ytop || y2 >= ybot) ) return;
+// check for line draw
+	if( is_linear(previous, next) ) {
+		draw_line(x1, y1, x2, y2);
+		return;
+	}
+
 // Solve bezier equation for either every pixel or a certain large number of
 // points.
 
 // Not using slope intercept
 	x1 = MAX(0, x1);
-	int prev_y = y1 + center_pixel;
-
+	draw_pixel(x1, y1);
+	int prev_y = y1;
 
 // Call by reference fails for some reason here
 	FloatAuto *previous1 = previous, *next1 = next;
 	float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
 	float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
 	float automation_range = automation_max - automation_min;
-
-	for(int x = x1; x < x2; x++)
-	{
+	for( int x=x1; x<x2; ++x ) {
 // Interpolate value between frames
 		X_TO_FLOATLINE(x)
 
-		if(/* x > x1 && */
-			y >= center_pixel - yscale / 2 &&
-			y < center_pixel + yscale / 2 - 1)
-		{
-// printf("TrackCanvas::draw_floatline y=%d min=%d max=%d\n",
-// y,
-// (int)(center_pixel - yscale / 2),
-// (int)(center_pixel + yscale / 2 - 1));
-
-//printf("draw_line(%d,%d,  %d,%d)\n", x - 1, prev_y  , x, y);
- 			draw_line(x - 1, prev_y  , x, y   );
+		if( /* x > x1 && */ y >= ytop && y < ybot ) {
+			int x1 = x-1, y1 = prev_y, x2 = x, y2 = y;
+			if( abs(y2-y1) < 2 )
+				draw_pixel(x2, y2);
+			else
+				draw_bline(x1, y1, x2, y2);
 		}
 		prev_y = y;
 	}
 }
 
 
-
-
-
 int TrackCanvas::test_floatline(int center_pixel,
 		FloatAutos *autos,
 		double unit_start,