improved controlscl

- hold mouse left to zoom to desired point
- hold mouse right to zoom out from that point
- press/hold i to increase iterations
- press/hold d to decrease iterations
- dont press anything to pause

1 files changed, 12 insertions, 8 deletions

diff --git a/src/render_opencl.c b/src/render_opencl.c
index 127bae2..055a7f3 100644
--- a/src/render_opencl.c
+++ b/src/render_opencl.c
@@ -310,17 +310,21 @@ void mouse_opencl(int button, int state, int x, int y)
 		switch (button)
 		{
 		case GLUT_LEFT_BUTTON:
-			config_opencl->to_x = x_min_cl
-					+ ((d64) x * (x_max_cl - x_min_cl)) / config_opencl->width;
-			config_opencl->to_y = y_min_cl
-					+ ((d64) (config_opencl->height - y) * (y_max_cl - y_min_cl))
-							/ config_opencl->height;
-			t_old_opencl = glutGet(GLUT_ELAPSED_TIME);
-			glutIdleFunc(idle_opencl);
+			if (config_opencl->speed < 0)
+				config_opencl->speed = (-1) * config_opencl->speed;
 			break;
 		case GLUT_RIGHT_BUTTON:
-			glutIdleFunc(idle_opencl_dummy);
+			if (config_opencl->speed > 0)
+				config_opencl->speed = (-1) * config_opencl->speed;
 			break;
 		}
+		config_opencl->to_x = x_min_cl + ((d64) x * (x_max_cl - x_min_cl)) / config_opencl->width;
+		config_opencl->to_y = y_min_cl + ((d64) y * (y_max_cl - y_min_cl)) / config_opencl->height;
+		t_old_opencl = glutGet(GLUT_ELAPSED_TIME);
+		glutIdleFunc(idle_opencl);
+	}
+	else if(state == GLUT_UP)
+	{
+		glutIdleFunc(idle_opencl_dummy);
 	}
 }