xref: /aosp_15_r20/external/skia/tools/RuntimeBlendUtils.h (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1*c8dee2aaSAndroid Build Coastguard Worker /*
2*c8dee2aaSAndroid Build Coastguard Worker  * Copyright 2021 Google Inc.
3*c8dee2aaSAndroid Build Coastguard Worker  *
4*c8dee2aaSAndroid Build Coastguard Worker  * Use of this source code is governed by a BSD-style license that can be
5*c8dee2aaSAndroid Build Coastguard Worker  * found in the LICENSE file.
6*c8dee2aaSAndroid Build Coastguard Worker  */
7*c8dee2aaSAndroid Build Coastguard Worker 
8*c8dee2aaSAndroid Build Coastguard Worker #ifndef RuntimeBlendUtils_DEFINED
9*c8dee2aaSAndroid Build Coastguard Worker #define RuntimeBlendUtils_DEFINED
10*c8dee2aaSAndroid Build Coastguard Worker 
11*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkBlendMode.h"
12*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkRefCnt.h"
13*c8dee2aaSAndroid Build Coastguard Worker 
14*c8dee2aaSAndroid Build Coastguard Worker class SkBlender;
15*c8dee2aaSAndroid Build Coastguard Worker 
16*c8dee2aaSAndroid Build Coastguard Worker /**
17*c8dee2aaSAndroid Build Coastguard Worker  * Returns a Runtime Effect-based blender which is equivalent to the passed-in SkBlendMode.
18*c8dee2aaSAndroid Build Coastguard Worker  * This should generate the same output as the equivalent SkBlendMode operation, but always uses
19*c8dee2aaSAndroid Build Coastguard Worker  * SkSL to perform the blend operation instead of relying on specialized/fixed-function code.
20*c8dee2aaSAndroid Build Coastguard Worker  * This is useful for verifying that Runtime Blends are working as expected throughout the pipeline.
21*c8dee2aaSAndroid Build Coastguard Worker  */
22*c8dee2aaSAndroid Build Coastguard Worker sk_sp<SkBlender> GetRuntimeBlendForBlendMode(SkBlendMode mode);
23*c8dee2aaSAndroid Build Coastguard Worker 
24*c8dee2aaSAndroid Build Coastguard Worker #endif
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