diff options
author | Ethan Nicholas <ethannicholas@google.com> | 2017-06-27 09:56:09 -0400 |
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committer | Skia Commit-Bot <skia-commit-bot@chromium.org> | 2017-06-27 14:20:05 +0000 |
commit | ccf59917d3fe7aaf59de714acfbd0596503f324f (patch) | |
tree | cc97719c47276c9dcbf0ec09effd580c4e7450dd /src/sksl/ir/SkSLSetting.h | |
parent | c3aef18419c1bb16951370e11758c7ef131fa10b (diff) |
sksl fragment processor support
Bug: skia:
Change-Id: Ia3b0305c2b0c78074303831f628fb01852b90d34
Reviewed-on: https://skia-review.googlesource.com/17843
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Ben Wagner <benjaminwagner@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Diffstat (limited to 'src/sksl/ir/SkSLSetting.h')
-rw-r--r-- | src/sksl/ir/SkSLSetting.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/sksl/ir/SkSLSetting.h b/src/sksl/ir/SkSLSetting.h new file mode 100644 index 0000000000..995fcf55bf --- /dev/null +++ b/src/sksl/ir/SkSLSetting.h @@ -0,0 +1,51 @@ +/* + * Copyright 2016 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef SKSL_SETTING +#define SKSL_SETTING + +#include "SkSLContext.h" +#include "SkSLExpression.h" + +namespace SkSL { + +/** + * Represents a compile-time constant setting, such as sk_Caps.fbFetchSupport. These are generally + * collapsed down to their constant representations during the compilation process. + */ +struct Setting : public Expression { + Setting(Position position, String name, std::unique_ptr<Expression> value) + : INHERITED(position, kSetting_Kind, value->fType) + , fName(std::move(name)) + , fValue(std::move(value)) { + ASSERT(fValue->isConstant()); + } + + std::unique_ptr<Expression> constantPropagate(const IRGenerator& irGenerator, + const DefinitionMap& definitions) override; + + String description() const override { + return fName; + } + + bool hasSideEffects() const override { + return false; + } + + bool isConstant() const override { + return true; + } + + const String fName; + std::unique_ptr<Expression> fValue; + + typedef Expression INHERITED; +}; + +} // namespace + +#endif |