1 /*
2  * Copyright 2017 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include "GrColorSpaceInfo.h"
9 #include "SkColorSpacePriv.h"
10 
GrColorSpaceInfo(sk_sp<SkColorSpace> colorSpace,GrPixelConfig config)11 GrColorSpaceInfo::GrColorSpaceInfo(sk_sp<SkColorSpace> colorSpace, GrPixelConfig config)
12         : fColorSpace(std::move(colorSpace))
13         , fConfig(config)
14         , fInitializedColorSpaceXformFromSRGB(false) {}
15 
colorSpaceXformFromSRGB() const16 GrColorSpaceXform* GrColorSpaceInfo::colorSpaceXformFromSRGB() const {
17     // TODO: Make this atomic if we start accessing this on multiple threads.
18     if (!fInitializedColorSpaceXformFromSRGB) {
19         // sRGB sources are very common (SkColor, etc...), so we cache that transformation
20         fColorXformFromSRGB = GrColorSpaceXform::Make(sk_srgb_singleton(), kUnpremul_SkAlphaType,
21                                                       fColorSpace.get(),   kUnpremul_SkAlphaType);
22         fInitializedColorSpaceXformFromSRGB = true;
23     }
24     // You can't be color-space aware in legacy mode
25     SkASSERT(fColorSpace || !fColorXformFromSRGB);
26     return fColorXformFromSRGB.get();
27 }
28