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- /*
- * 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_MODIFIERS
- #define SKSL_MODIFIERS
- #include "src/sksl/ir/SkSLLayout.h"
- namespace SkSL {
- /**
- * A set of modifier keywords (in, out, uniform, etc.) appearing before a declaration.
- */
- struct Modifiers {
- enum Flag {
- kNo_Flag = 0,
- kConst_Flag = 1 << 0,
- kIn_Flag = 1 << 1,
- kOut_Flag = 1 << 2,
- kUniform_Flag = 1 << 3,
- kFlat_Flag = 1 << 4,
- kNoPerspective_Flag = 1 << 5,
- kReadOnly_Flag = 1 << 6,
- kWriteOnly_Flag = 1 << 7,
- kCoherent_Flag = 1 << 8,
- kVolatile_Flag = 1 << 9,
- kRestrict_Flag = 1 << 10,
- kBuffer_Flag = 1 << 11,
- kHasSideEffects_Flag = 1 << 12,
- kPLS_Flag = 1 << 13,
- kPLSIn_Flag = 1 << 14,
- kPLSOut_Flag = 1 << 15,
- };
- Modifiers()
- : fLayout(Layout())
- , fFlags(0) {}
- Modifiers(const Layout& layout, int flags)
- : fLayout(layout)
- , fFlags(flags) {}
- String description() const {
- String result = fLayout.description();
- if (fFlags & kUniform_Flag) {
- result += "uniform ";
- }
- if (fFlags & kConst_Flag) {
- result += "const ";
- }
- if (fFlags & kFlat_Flag) {
- result += "flat ";
- }
- if (fFlags & kNoPerspective_Flag) {
- result += "noperspective ";
- }
- if (fFlags & kReadOnly_Flag) {
- result += "readonly ";
- }
- if (fFlags & kWriteOnly_Flag) {
- result += "writeonly ";
- }
- if (fFlags & kCoherent_Flag) {
- result += "coherent ";
- }
- if (fFlags & kVolatile_Flag) {
- result += "volatile ";
- }
- if (fFlags & kRestrict_Flag) {
- result += "restrict ";
- }
- if (fFlags & kBuffer_Flag) {
- result += "buffer ";
- }
- if (fFlags & kHasSideEffects_Flag) {
- result += "sk_has_side_effects ";
- }
- if (fFlags & kPLS_Flag) {
- result += "__pixel_localEXT ";
- }
- if (fFlags & kPLSIn_Flag) {
- result += "__pixel_local_inEXT ";
- }
- if (fFlags & kPLSOut_Flag) {
- result += "__pixel_local_outEXT ";
- }
- if ((fFlags & kIn_Flag) && (fFlags & kOut_Flag)) {
- result += "inout ";
- } else if (fFlags & kIn_Flag) {
- result += "in ";
- } else if (fFlags & kOut_Flag) {
- result += "out ";
- }
- return result;
- }
- bool operator==(const Modifiers& other) const {
- return fLayout == other.fLayout && fFlags == other.fFlags;
- }
- bool operator!=(const Modifiers& other) const {
- return !(*this == other);
- }
- Layout fLayout;
- int fFlags;
- };
- } // namespace
- #endif
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