vo_opengl: add radius options for filters

Add two new options, make it possible for user to set the radius
for some of the filters with no fixed radius.

Also add three new filters with the new radius parameter supported.

1 files changed, 10 insertions, 0 deletions

diff --git a/video/out/gl_video.c b/video/out/gl_video.c
index 3478c8afcc..359013a6e6 100644
--- a/video/out/gl_video.c
+++ b/video/out/gl_video.c
@@ -289,6 +289,7 @@ static const struct gl_video_opts gl_video_opts_def = {
     .scale_sep = 1,
     .scalers = { "bilinear", "bilinear" },
     .scaler_params = {{NAN, NAN}, {NAN, NAN}},
+    .scaler_radius = {NAN, NAN},
     .alpha_mode = 2,
 };
 
@@ -300,6 +301,7 @@ const struct gl_video_opts gl_video_opts_hq_def = {
     .scale_sep = 1,
     .scalers = { "spline36", "bilinear" },
     .scaler_params = {{NAN, NAN}, {NAN, NAN}},
+    .scaler_radius = {NAN, NAN},
     .alpha_mode = 2,
 };
 
@@ -326,6 +328,8 @@ const struct m_sub_options gl_video_conf = {
         OPT_FLOAT("lparam2", scaler_params[0][1], 0),
         OPT_FLOAT("cparam1", scaler_params[1][0], 0),
         OPT_FLOAT("cparam2", scaler_params[1][1], 0),
+        OPT_FLOATRANGE("lradius", scaler_radius[0], 0, 1.0, 8.0),
+        OPT_FLOATRANGE("cradius", scaler_radius[1], 0, 1.0, 8.0),
         OPT_FLAG("scaler-resizes-only", scaler_resizes_only, 0),
         OPT_FLAG("fancy-downscaling", fancy_downscaling, 0),
         OPT_FLAG("indirect", indirect, 0),
@@ -1117,6 +1121,12 @@ static void init_scaler(struct gl_video *p, struct scaler *scaler)
             scaler->kernel->params[n] = p->opts.scaler_params[scaler->index][n];
     }
 
+    if (scaler->kernel->radius < 0) {
+        float radius = p->opts.scaler_radius[scaler->index];
+        if (!isnan(radius))
+            scaler->kernel->radius = radius;
+    }
+
     update_scale_factor(p, scaler->kernel);
 
     int size = scaler->kernel->size;