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/*
* Copyright 2011-2013 Blender Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __COLORSPACE_H__
#define __COLORSPACE_H__
#include "util/util_map.h"
#include "util/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 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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