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render/color: add wlr_color_transform_pipeline

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Useful to apply multiple transforms in sequence, e.g. sRGB inverse
EOTF followed by gamma LUTs.
This commit is contained in:
Simon Ser 2025-06-15 15:03:18 +02:00
parent 3d36ab9211
commit 0b58bddf13
3 changed files with 60 additions and 0 deletions
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8
include/render/color.h
View file

@ -9,6 +9,7 @@ enum wlr_color_transform_type {
COLOR_TRANSFORM_INVERSE_EOTF,
COLOR_TRANSFORM_LCMS2,
COLOR_TRANSFORM_LUT_3X1D,
COLOR_TRANSFORM_PIPELINE,
};
struct wlr_color_transform {
@ -39,6 +40,13 @@ struct wlr_color_transform_lut_3x1d {
size_t dim;
};
struct wlr_color_transform_pipeline {
struct wlr_color_transform base;
struct wlr_color_transform **transforms;
size_t len;
};
void wlr_color_transform_init(struct wlr_color_transform *tr,
enum wlr_color_transform_type type);

7
include/wlr/render/color.h
View file

@ -141,6 +141,13 @@ struct wlr_color_transform *wlr_color_transform_init_linear_to_inverse_eotf(
struct wlr_color_transform *wlr_color_transform_init_lut_3x1d(size_t dim,
const uint16_t *r, const uint16_t *g, const uint16_t *b);
/**
* Initialize a color transformation to apply a sequence of color transforms
* one after another.
*/
struct wlr_color_transform *wlr_color_transform_init_pipeline(
struct wlr_color_transform **transforms, size_t len);
/**
* Increase the reference count of the color transform by 1.
*/