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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GFX_ICC_PROFILE_H_
#define UI_GFX_ICC_PROFILE_H_
#include <stdint.h>
#include <vector>
#include "base/gtest_prod_util.h"
#include "ui/gfx/color_space.h"
#if defined(OS_MACOSX)
#include <CoreGraphics/CGColorSpace.h>
#endif
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size);
namespace mojo {
template <typename, typename> struct StructTraits;
}
namespace gfx {
// Used to represent a full ICC profile, usually retrieved from a monitor. It
// can be lossily compressed into a ColorSpace object. This structure should
// only be sent from higher-privilege processes to lower-privilege processes,
// as parsing this structure is not secure.
class GFX_EXPORT ICCProfile {
public:
ICCProfile();
ICCProfile(ICCProfile&& other);
ICCProfile(const ICCProfile& other);
ICCProfile& operator=(ICCProfile&& other);
ICCProfile& operator=(const ICCProfile& other);
~ICCProfile();
bool operator==(const ICCProfile& other) const;
bool operator!=(const ICCProfile& other) const;
// Returns true if this profile was successfully parsed by SkICC.
bool IsValid() const;
// Returns the color profile of the monitor that can best represent color.
// This profile should be used for creating content that does not know on
// which monitor it will be displayed.
static ICCProfile FromBestMonitor();
#if defined(OS_MACOSX)
static ICCProfile FromCGColorSpace(CGColorSpaceRef cg_color_space);
#endif
// This will recover a ICCProfile from a compact ColorSpace representation.
// Internally, this will make an effort to create an identical ICCProfile
// to the one that created |color_space|, but this is not guaranteed.
static ICCProfile FromColorSpace(const gfx::ColorSpace& color_space);
// Create directly from profile data.
static ICCProfile FromData(const void* icc_profile, size_t size);
// This will perform a potentially-lossy conversion to a more compact color
// space representation.
const ColorSpace& GetColorSpace() const;
const std::vector<char>& GetData() const;
#if defined(OS_WIN)
// This will read monitor ICC profiles from disk and cache the results for the
// other functions to read. This should not be called on the UI or IO thread.
static void UpdateCachedProfilesOnBackgroundThread();
static bool CachedProfilesNeedUpdate();
#endif
private:
friend ICCProfile ICCProfileForTestingAdobeRGB();
friend ICCProfile ICCProfileForTestingColorSpin();
friend ICCProfile ICCProfileForTestingGenericRGB();
friend ICCProfile ICCProfileForTestingSRGB();
friend ICCProfile ICCProfileForTestingNoAnalyticTrFn();
static const uint64_t test_id_adobe_rgb_;
static const uint64_t test_id_color_spin_;
static const uint64_t test_id_generic_rgb_;
static const uint64_t test_id_srgb_;
static const uint64_t test_id_no_analytic_tr_fn_;
// Populate |icc_profile| with the ICCProfile corresponding to id |id|. Return
// false if |id| is not in the cache. If |only_if_needed| is true, then return
// false if |color_space_is_accurate_| is true for this profile (that is, if
// the ICCProfile is needed to know the space precisely).
static bool FromId(uint64_t id, bool only_if_needed, ICCProfile* icc_profile);
// This method is used to hard-code the |id_| to a specific value, and is
// used by test methods to ensure that they don't conflict with the values
// generated in the browser.
static ICCProfile FromDataWithId(const void* icc_profile,
size_t size,
uint64_t id);
static bool IsValidProfileLength(size_t length);
void ComputeColorSpaceAndCache();
// This globally identifies this ICC profile. It is used to look up this ICC
// profile from a ColorSpace object created from it. The object is invalid if
// |id_| is zero.
uint64_t id_ = 0;
std::vector<char> data_;
gfx::ColorSpace color_space_;
// True if |color_space_| accurately represents this color space (this is
// false e.g, for lookup-based profiles).
bool color_space_is_accurate_ = false;
// This is set to true if SkICC successfully parsed this profile.
bool successfully_parsed_by_sk_icc_ = false;
FRIEND_TEST_ALL_PREFIXES(SimpleColorSpace, BT709toSRGBICC);
FRIEND_TEST_ALL_PREFIXES(SimpleColorSpace, GetColorSpace);
friend int ::LLVMFuzzerTestOneInput(const uint8_t*, size_t);
friend class ColorSpace;
friend class ColorTransformInternal;
friend struct IPC::ParamTraits<gfx::ICCProfile>;
};
} // namespace gfx
#endif // UI_GFX_ICC_PROFILE_H_
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