forked from bartvdbraak/blender
60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
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*
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* SPDX-License-Identifier: Apache-2.0 */
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#ifndef __COLORSPACE_H__
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#define __COLORSPACE_H__
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#include "util/map.h"
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#include "util/param.h"
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CCL_NAMESPACE_BEGIN
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extern ustring u_colorspace_auto;
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extern ustring u_colorspace_raw;
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extern ustring u_colorspace_srgb;
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class ColorSpaceProcessor;
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class ColorSpaceManager {
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public:
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/* Convert used specified colorspace to a colorspace that we are able to
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* convert to and from. If the colorspace is u_colorspace_auto, we auto
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* detect a colospace. */
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static ustring detect_known_colorspace(ustring colorspace,
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const char *file_colorspace,
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const char *file_format,
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bool is_float);
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/* Test if colorspace is for non-color data. */
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static bool colorspace_is_data(ustring colorspace);
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/* Convert pixels in the specified colorspace to scene linear color for
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* rendering. Must be a colorspace returned from detect_known_colorspace. */
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template<typename T>
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static void to_scene_linear(
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ustring colorspace, T *pixels, size_t num_pixels, bool is_rgba, bool compress_as_srgb);
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/* Efficiently convert pixels to scene linear colorspace at render time,
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* for OSL where the image texture cache contains original pixels. The
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* handle is valid for the lifetime of the application. */
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static ColorSpaceProcessor *get_processor(ustring colorspace);
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static void to_scene_linear(ColorSpaceProcessor *processor, float *pixel, int channels);
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/* Clear memory when the application exits. Invalidates all processors. */
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static void free_memory();
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/* Create a fallback color space configuration.
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*
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* This may be useful to allow regression test to create a configuration which is considered
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* valid without knowing the actual configuration used by the final application. */
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static void init_fallback_config();
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private:
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static void is_builtin_colorspace(ustring colorspace, bool &is_no_op, bool &is_srgb);
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};
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CCL_NAMESPACE_END
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#endif /* __COLORSPACE_H__ */
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