ethannicholas | ccb1dd8 | 2016-10-11 08:47:04 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016 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 | #ifndef SKSL_ASTPRECISION |
| 9 | #define SKSL_ASTPRECISION |
| 10 | |
| 11 | #include "SkSLASTDeclaration.h" |
| 12 | #include "../ir/SkSLModifiers.h" |
| 13 | |
| 14 | namespace SkSL { |
| 15 | |
| 16 | /** |
| 17 | * Represents a precision declaration (e.g. 'precision mediump float;'). |
| 18 | */ |
| 19 | struct ASTPrecision : public ASTDeclaration { |
| 20 | // FIXME handle the type |
| 21 | ASTPrecision(Position position, Modifiers::Flag precision) |
| 22 | : INHERITED(position, kPrecision_Kind) |
| 23 | , fPrecision(precision) {} |
| 24 | |
| 25 | std::string description() const { |
| 26 | switch (fPrecision) { |
| 27 | case Modifiers::kLowp_Flag: return "precision lowp float;"; |
| 28 | case Modifiers::kMediump_Flag: return "precision mediump float;"; |
| 29 | case Modifiers::kHighp_Flag: return "precision highp float;"; |
| 30 | default: |
| 31 | ASSERT(false); |
| 32 | return "<error>"; |
| 33 | } |
| 34 | ASSERT(false); |
| 35 | return "<error>"; |
| 36 | } |
| 37 | |
| 38 | const Modifiers::Flag fPrecision; |
| 39 | |
| 40 | typedef ASTDeclaration INHERITED; |
| 41 | }; |
| 42 | |
| 43 | } // namespace |
| 44 | |
| 45 | #endif |