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| author | Niklas Haas <git@haasn.xyz> | 2017-07-03 11:23:48 +0200 |
|---|---|---|
| committer | Niklas Haas <git@haasn.xyz> | 2017-07-03 11:51:37 +0200 |
| commit | 8854a2bef61090fdcc6b815112ddd966ef07d771 (patch) | |
| tree | 553ec82e7df0eeff9aa980c00f6ad5c14b385518 /video/out/opengl/video.c | |
| parent | 41b3b116695bcad3fdb3129b133e2a97d9a76847 (diff) | |
| download | mpv-8854a2bef61090fdcc6b815112ddd966ef07d771.tar.bz2 mpv-8854a2bef61090fdcc6b815112ddd966ef07d771.tar.xz | |
filter_kernels: add radius cutoff functionality
This allows filter functions to be prematurely cut off once their
contributions start becoming insignificant. This effectively prevents
wasted GPU time sampling from parts of the function that are essentially
reduced to zero by the window function, providing anywhere from a 10% to
20% speedup. (5700μs -> 4700μs for me)
Diffstat (limited to 'video/out/opengl/video.c')
| -rw-r--r-- | video/out/opengl/video.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/video/out/opengl/video.c b/video/out/opengl/video.c index 41ddf84722..d0d80e94c9 100644 --- a/video/out/opengl/video.c +++ b/video/out/opengl/video.c @@ -294,10 +294,13 @@ static const struct gl_video_opts gl_video_opts_def = { .sigmoid_center = 0.75, .sigmoid_slope = 6.5, .scaler = { - {{"bilinear", .params={NAN, NAN}}, {.params = {NAN, NAN}}}, // scale - {{NULL, .params={NAN, NAN}}, {.params = {NAN, NAN}}}, // dscale - {{"bilinear", .params={NAN, NAN}}, {.params = {NAN, NAN}}}, // cscale - {{"mitchell", .params={NAN, NAN}}, {.params = {NAN, NAN}}, + {{"bilinear", .params={NAN, NAN}}, {.params = {NAN, NAN}}, + .cutoff = 0.001}, // scale + {{NULL, .params={NAN, NAN}}, {.params = {NAN, NAN}}, + .cutoff = 0.001}, // dscale + {{"bilinear", .params={NAN, NAN}}, {.params = {NAN, NAN}}, + .cutoff = 0.001}, // cscale + {{"mitchell", .params={NAN, NAN}}, {.params = {NAN, NAN}}, .clamp = 1, }, // tscale }, .scaler_resizes_only = 1, @@ -324,6 +327,7 @@ static int validate_window_opt(struct mp_log *log, const m_option_t *opt, OPT_FLOAT(n"-param1", scaler[i].kernel.params[0], 0), \ OPT_FLOAT(n"-param2", scaler[i].kernel.params[1], 0), \ OPT_FLOAT(n"-blur", scaler[i].kernel.blur, 0), \ + OPT_FLOATRANGE(n"-cutoff", scaler[i].cutoff, 0, 0.0, 1.0), \ OPT_FLOATRANGE(n"-taper", scaler[i].kernel.taper, 0, 0.0, 1.0), \ OPT_FLOAT(n"-wparam", scaler[i].window.params[0], 0), \ OPT_FLOAT(n"-wblur", scaler[i].window.blur, 0), \ @@ -1437,6 +1441,7 @@ static void reinit_scaler(struct gl_video *p, struct scaler *scaler, scaler->kernel->f.radius = conf->radius; scaler->kernel->clamp = conf->clamp; + scaler->kernel->value_cutoff = conf->cutoff; scaler->insufficient = !mp_init_filter(scaler->kernel, sizes, scale_factor); |