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56 lines
1.6 KiB
56 lines
1.6 KiB
1 year ago
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/*
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* This an unstable interface of wlroots. No guarantees are made regarding the
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* future consistency of this API.
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*/
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#ifndef WLR_USE_UNSTABLE
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#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
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#endif
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#ifndef WLR_RENDER_COLOR_H
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#define WLR_RENDER_COLOR_H
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#include <stdbool.h>
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#include <sys/types.h>
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/**
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* A color transformation formula, which maps a linear color space with
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* sRGB primaries to an output color space.
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*
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* For ease of use, this type is heap allocated and reference counted.
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* Use wlr_color_transform_ref()/wlr_color_transform_unref(). The initial reference
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* count after creation is 1.
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*
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* Color transforms are immutable; their type/parameters should not be changed,
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* and this API provides no functions to modify them after creation.
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*
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* This formula may be implemented using a 3d look-up table, or some other
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* means.
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*/
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struct wlr_color_transform;
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/**
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* Initialize a color transformation to convert linear
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* (with sRGB(?) primaries) to an ICC profile. Returns NULL on failure.
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*/
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struct wlr_color_transform *wlr_color_transform_init_linear_to_icc(
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const void *data, size_t size);
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/**
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* Initialize a color transformation to apply sRGB encoding.
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* Returns NULL on failure.
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*/
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struct wlr_color_transform *wlr_color_transform_init_srgb(void);
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/**
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* Increase the reference count of the color transform by 1.
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*/
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void wlr_color_transform_ref(struct wlr_color_transform *tr);
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/**
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* Reduce the reference count of the color transform by 1; freeing it and
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* all associated resources when the reference count hits zero.
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*/
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void wlr_color_transform_unref(struct wlr_color_transform *tr);
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#endif
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