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Side by Side Diff: ui/gfx/skia_color_space_util.h

Issue 2915673003: ui/gfx: Use separate components for color_space and switches (Closed)
Patch Set: Review feedback Created 3 years, 6 months ago
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1 // Copyright 2017 The Chromium Authors. All rights reserved. 1 // Copyright 2017 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef UI_GFX_SKIA_COLOR_SPACE_UTIL_H_ 5 #ifndef UI_GFX_SKIA_COLOR_SPACE_UTIL_H_
6 #define UI_GFX_SKIA_COLOR_SPACE_UTIL_H_ 6 #define UI_GFX_SKIA_COLOR_SPACE_UTIL_H_
7 7
8 #include "third_party/skia/include/core/SkColorSpace.h" 8 #include "third_party/skia/include/core/SkColorSpace.h"
9 #include "third_party/skia/include/core/SkICC.h" 9 #include "third_party/skia/include/core/SkICC.h"
10 #include "ui/gfx/gfx_export.h" 10 #include "ui/gfx/color_space_export.h"
11 11
12 namespace gfx { 12 namespace gfx {
13 13
14 float GFX_EXPORT SkTransferFnEval(const SkColorSpaceTransferFn& fn, float x); 14 float COLOR_SPACE_EXPORT SkTransferFnEval(const SkColorSpaceTransferFn& fn,
15 float x);
15 16
16 SkColorSpaceTransferFn GFX_EXPORT 17 SkColorSpaceTransferFn COLOR_SPACE_EXPORT
17 SkTransferFnInverse(const SkColorSpaceTransferFn& fn); 18 SkTransferFnInverse(const SkColorSpaceTransferFn& fn);
18 19
19 bool GFX_EXPORT 20 bool COLOR_SPACE_EXPORT
20 SkTransferFnsApproximatelyCancel(const SkColorSpaceTransferFn& a, 21 SkTransferFnsApproximatelyCancel(const SkColorSpaceTransferFn& a,
21 const SkColorSpaceTransferFn& b); 22 const SkColorSpaceTransferFn& b);
22 23
23 bool GFX_EXPORT 24 bool COLOR_SPACE_EXPORT
24 SkTransferFnIsApproximatelyIdentity(const SkColorSpaceTransferFn& fn); 25 SkTransferFnIsApproximatelyIdentity(const SkColorSpaceTransferFn& fn);
25 26
26 // Approximates the |n| points in |x| and |t| by the transfer function |fn|. 27 // Approximates the |n| points in |x| and |t| by the transfer function |fn|.
27 // Returns true if the approximation converged. 28 // Returns true if the approximation converged.
28 bool GFX_EXPORT SkApproximateTransferFn(const float* x, 29 bool COLOR_SPACE_EXPORT SkApproximateTransferFn(const float* x,
29 const float* t, 30 const float* t,
30 size_t n, 31 size_t n,
31 SkColorSpaceTransferFn* fn); 32 SkColorSpaceTransferFn* fn);
32 33
33 // Approximates |sk_icc| by the transfer function |fn|. Returns in |max_error| 34 // Approximates |sk_icc| by the transfer function |fn|. Returns in |max_error|
34 // the maximum pointwise of all color channels' transfer functions with |fn|. 35 // the maximum pointwise of all color channels' transfer functions with |fn|.
35 // Returns false if no approximation was possible, or no approximation 36 // Returns false if no approximation was possible, or no approximation
36 // converged. 37 // converged.
37 bool GFX_EXPORT SkApproximateTransferFn(sk_sp<SkICC> sk_icc, 38 bool COLOR_SPACE_EXPORT SkApproximateTransferFn(sk_sp<SkICC> sk_icc,
38 float* max_error, 39 float* max_error,
39 SkColorSpaceTransferFn* fn); 40 SkColorSpaceTransferFn* fn);
40 41
41 bool GFX_EXPORT SkMatrixIsApproximatelyIdentity(const SkMatrix44& m); 42 bool COLOR_SPACE_EXPORT SkMatrixIsApproximatelyIdentity(const SkMatrix44& m);
42 43
43 } // namespace gfx 44 } // namespace gfx
44 45
45 #endif // UI_GFX_SKIA_COLOR_SPACE_UTIL_H_ 46 #endif // UI_GFX_SKIA_COLOR_SPACE_UTIL_H_
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