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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 #include "ui/gfx/skia_color_space_util.h" 5 #include "ui/gfx/skia_color_space_util.h"
6 6
7 #include <algorithm> 7 #include <algorithm>
8 #include <cmath> 8 #include <cmath>
9 #include <vector> 9 #include <vector>
10 10
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417 fn->fA = 1; 417 fn->fA = 1;
418 fn->fB = 0; 418 fn->fB = 0;
419 fn->fC = 1; 419 fn->fC = 1;
420 fn->fD = 0; 420 fn->fD = 0;
421 fn->fE = 0; 421 fn->fE = 0;
422 fn->fF = 0; 422 fn->fF = 0;
423 fn->fG = 1; 423 fn->fG = 1;
424 return false; 424 return false;
425 } 425 }
426 426
427 bool GFX_EXPORT SkApproximateTransferFn(sk_sp<SkICC> sk_icc, 427 bool SkApproximateTransferFn(sk_sp<SkICC> sk_icc,
428 float* max_error, 428 float* max_error,
429 SkColorSpaceTransferFn* fn) { 429 SkColorSpaceTransferFn* fn) {
430 SkICC::Tables tables; 430 SkICC::Tables tables;
431 bool got_tables = sk_icc->rawTransferFnData(&tables); 431 bool got_tables = sk_icc->rawTransferFnData(&tables);
432 if (!got_tables) 432 if (!got_tables)
433 return false; 433 return false;
434 434
435 // Merge all channels' tables into a single array. 435 // Merge all channels' tables into a single array.
436 SkICC::Channel* channels[3] = {&tables.fGreen, &tables.fRed, &tables.fBlue}; 436 SkICC::Channel* channels[3] = {&tables.fGreen, &tables.fRed, &tables.fBlue};
437 std::vector<float> x; 437 std::vector<float> x;
438 std::vector<float> t; 438 std::vector<float> t;
439 for (size_t c = 0; c < 3; ++c) { 439 for (size_t c = 0; c < 3; ++c) {
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471 float identity_value = i == j ? 1 : 0; 471 float identity_value = i == j ? 1 : 0;
472 float value = m.get(i, j); 472 float value = m.get(i, j);
473 if (std::abs(identity_value - value) > kEpsilon) 473 if (std::abs(identity_value - value) > kEpsilon)
474 return false; 474 return false;
475 } 475 }
476 } 476 }
477 return true; 477 return true;
478 } 478 }
479 479
480 } // namespace gfx 480 } // namespace gfx
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