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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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