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/* SPDX-License-Identifier: Apache-2.0
* Copyright 2011-2022 Blender Foundation */
#ifndef __COLORSPACE_H__
#define __COLORSPACE_H__
#include "util/map.h"
#include "util/param.h"
CCL_NAMESPACE_BEGIN
extern ustring u_colorspace_auto;
extern ustring u_colorspace_raw;
extern ustring u_colorspace_srgb;
class ColorSpaceProcessor;
class ColorSpaceManager {
public:
/* Convert used specified colorspace to a colorspace that we are able to
* convert to and from. If the colorspace is u_colorspace_auto, we auto
* detect a colospace. */
static ustring detect_known_colorspace(ustring colorspace,
const char *file_format,
bool is_float);
/* Test if colorspace is for non-color data. */
static bool colorspace_is_data(ustring colorspace);
/* Convert pixels in the specified colorspace to scene linear color for
* rendering. Must be a colorspace returned from detect_known_colorspace. */
template<typename T>
static void to_scene_linear(
ustring colorspace, T *pixels, size_t num_pixels, bool is_rgba, bool compress_as_srgb);
/* Efficiently convert pixels to scene linear colorspace at render time,
* for OSL where the image texture cache contains original pixels. The
* handle is valid for the lifetime of the application. */
static ColorSpaceProcessor *get_processor(ustring colorspace);
static void to_scene_linear(ColorSpaceProcessor *processor, float *pixel, int channels);
/* Clear memory when the application exits. Invalidates all processors. */
static void free_memory();
private:
static void is_builtin_colorspace(ustring colorspace, bool &is_no_op, bool &is_srgb);
};
CCL_NAMESPACE_END
#endif /* __COLORSPACE_H__ */
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