| /* |
| * 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 |
