vo_gpu: add --tone-mapping-mode

This merges the old desaturation control options into a single
enumeration, with the goal of both simplifying how these options work
and also making this list more extensible (including, notably, new
options only supported by vo_gpu_next).

For the hybrid option, I decided to port the (slightly tweaked) values
from libplacebo's pre-refactor defaults, rather than the old values we
had in mpv, to more visually match the look of the vo_gpu_next hybrid.

1 files changed, 9 insertions, 2 deletions

diff --git a/video/out/gpu/video.h b/video/out/gpu/video.h
index adeadaba65..0bb180e514 100644
--- a/video/out/gpu/video.h
+++ b/video/out/gpu/video.h
@@ -100,6 +100,14 @@ enum tone_mapping {
     TONE_MAPPING_BT_2446A,
 };
 
+enum tone_mapping_mode {
+    TONE_MAP_MODE_AUTO,
+    TONE_MAP_MODE_RGB,
+    TONE_MAP_MODE_MAX,
+    TONE_MAP_MODE_HYBRID,
+    TONE_MAP_MODE_LUMA,
+};
+
 enum gamut_mode {
     GAMUT_AUTO,
     GAMUT_CLIP,
@@ -114,12 +122,11 @@ struct gl_tone_map_opts {
     float max_boost;
     int inverse;
     float crosstalk;
+    int mode;
     int compute_peak;
     float decay_rate;
     float scene_threshold_low;
     float scene_threshold_high;
-    float desat;
-    float desat_exp;
     int gamut_mode;
 };