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authorGravatar Niklas Haas <git@haasn.xyz>2018-10-17 11:23:16 +0200
committerGravatar sfan5 <sfan5@live.de>2018-10-19 22:58:01 +0200
commit7ad60a7c5e8dd05e6097fd24e43d0f3458201eeb (patch)
tree7280f18b1a748b81354357465676edc8c0a84179 /video
parent448cbd472ef8154704e6ae2c0b88464b2bba54f4 (diff)
vo_gpu: split --linear-scaling into two separate options
Since linear downscaling makes sense to handle independently from linear/sigmoid upscaling, we split this option up. Now, linear-downscaling is its own option that only controls linearization when downscaling and nothing more. Likewise, linear-upscaling / sigmoid-upscaling are two mutually exclusive options (the latter overriding the former) that apply only to upscaling and no longer implicitly enable linear light downscaling as well. The old behavior was very confusing, as evidenced by issues such as #6213. The current behavior should make much more sense, and only minimally breaks backwards compatibility (since using linear-scaling directly was very uncommon - most users got this for free as part of gpu-hq and relied only on that). Closes #6213.
Diffstat (limited to 'video')
-rw-r--r--video/out/gpu/video.c35
-rw-r--r--video/out/gpu/video.h3
2 files changed, 25 insertions, 13 deletions
diff --git a/video/out/gpu/video.c b/video/out/gpu/video.c
index ebb63cc02d..b0fa9eb4d9 100644
--- a/video/out/gpu/video.c
+++ b/video/out/gpu/video.c
@@ -373,8 +373,9 @@ const struct m_sub_options gl_video_conf = {
SCALER_OPTS("tscale", SCALER_TSCALE),
OPT_INTRANGE("scaler-lut-size", scaler_lut_size, 0, 4, 10),
OPT_FLAG("scaler-resizes-only", scaler_resizes_only, 0),
- OPT_FLAG("linear-scaling", linear_scaling, 0),
OPT_FLAG("correct-downscaling", correct_downscaling, 0),
+ OPT_FLAG("linear-downscaling", linear_downscaling, 0),
+ OPT_FLAG("linear-upscaling", linear_upscaling, 0),
OPT_FLAG("sigmoid-upscaling", sigmoid_upscaling, 0),
OPT_FLOATRANGE("sigmoid-center", sigmoid_center, 0, 0.0, 1.0),
OPT_FLOATRANGE("sigmoid-slope", sigmoid_slope, 0, 1.0, 20.0),
@@ -423,6 +424,8 @@ const struct m_sub_options gl_video_conf = {
OPT_REPLACED("opengl-fbo-format", "fbo-format"),
OPT_REPLACED("opengl-dumb-mode", "gpu-dumb-mode"),
OPT_REPLACED("opengl-gamma", "gamma-factor"),
+ OPT_REMOVED("linear-scaling", "Split into --linear-upscaling and "
+ "--linear-downscaling"),
{0}
},
.size = sizeof(struct gl_video_opts),
@@ -2332,13 +2335,18 @@ static void pass_scale_main(struct gl_video *p)
// Pre-conversion, like linear light/sigmoidization
GLSLF("// scaler pre-conversion\n");
- bool use_linear = p->opts.linear_scaling || p->opts.sigmoid_upscaling;
+ bool use_linear = false;
+ if (downscaling) {
+ use_linear = p->opts.linear_downscaling;
- // Linear light downscaling results in nasty artifacts for HDR curves due
- // to the potentially extreme brightness differences severely compounding
- // any ringing. So just scale in gamma light instead.
- if (mp_trc_is_hdr(p->image_params.color.gamma) && downscaling)
- use_linear = false;
+ // Linear light downscaling results in nasty artifacts for HDR curves
+ // due to the potentially extreme brightness differences severely
+ // compounding any ringing. So just scale in gamma light instead.
+ if (mp_trc_is_hdr(p->image_params.color.gamma))
+ use_linear = false;
+ } else if (upscaling) {
+ use_linear = p->opts.linear_upscaling || p->opts.sigmoid_upscaling;
+ }
if (use_linear) {
p->use_linear = true;
@@ -3494,9 +3502,9 @@ static bool check_dumb_mode(struct gl_video *p)
return false;
// otherwise, use auto-detection
- if (o->target_prim || o->target_trc || o->linear_scaling ||
- o->correct_downscaling || o->sigmoid_upscaling || o->interpolation ||
- o->blend_subs || o->deband || o->unsharp)
+ if (o->target_prim || o->target_trc || o->correct_downscaling ||
+ o->linear_downscaling || o->linear_upscaling || o->sigmoid_upscaling ||
+ o->interpolation || o->blend_subs || o->deband || o->unsharp)
return false;
// check remaining scalers (tscale is already implicitly excluded above)
for (int i = 0; i < SCALER_COUNT; i++) {
@@ -3652,8 +3660,11 @@ static void check_gl_features(struct gl_video *p)
p->opts.target_trc != MP_CSP_TRC_AUTO || p->use_lut_3d;
// mix() is needed for some gamma functions
- if (!have_mglsl && (p->opts.linear_scaling || p->opts.sigmoid_upscaling)) {
- p->opts.linear_scaling = false;
+ if (!have_mglsl && (p->opts.linear_downscaling ||
+ p->opts.linear_upscaling || p->opts.sigmoid_upscaling))
+ {
+ p->opts.linear_downscaling = false;
+ p->opts.linear_upscaling = false;
p->opts.sigmoid_upscaling = false;
MP_WARN(p, "Disabling linear/sigmoid scaling (GLSL version too old).\n");
}
diff --git a/video/out/gpu/video.h b/video/out/gpu/video.h
index 2184599582..ca8b6f65d4 100644
--- a/video/out/gpu/video.h
+++ b/video/out/gpu/video.h
@@ -112,8 +112,9 @@ struct gl_video_opts {
float tone_mapping_param;
float tone_mapping_desat;
int gamut_warning;
- int linear_scaling;
int correct_downscaling;
+ int linear_downscaling;
+ int linear_upscaling;
int sigmoid_upscaling;
float sigmoid_center;
float sigmoid_slope;