1 /* 2 * Copyright 2019 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_DEFINES 9 #define SKSL_DEFINES 10 11 #include <cstdint> 12 13 #include "include/core/SkTypes.h" 14 #include "include/private/SkTArray.h" 15 16 #if defined(SK_BUILD_FOR_IOS) && \ 17 (!defined(__IPHONE_9_0) || __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_9_0) 18 #define SKSL_USE_THREAD_LOCAL 0 19 #else 20 #define SKSL_USE_THREAD_LOCAL 1 21 #endif 22 23 using SKSL_INT = int64_t; 24 using SKSL_FLOAT = float; 25 26 namespace SkSL { 27 28 class Expression; 29 class Statement; 30 31 using ComponentArray = SkSTArray<4, int8_t>; // for Swizzles 32 using ExpressionArray = SkSTArray<2, std::unique_ptr<Expression>>; 33 using StatementArray = SkSTArray<2, std::unique_ptr<Statement>>; 34 35 // Functions larger than this (measured in IR nodes) will not be inlined. This growth factor 36 // accounts for the number of calls being inlined--i.e., a function called five times (that is, with 37 // five inlining opportunities) would be considered 5x larger than if it were called once. This 38 // default threshold value is arbitrary, but tends to work well in practice. 39 static constexpr int kDefaultInlineThreshold = 50; 40 41 // The SwizzleComponent namespace is used both by the SkSL::Swizzle expression, and the DSL swizzle. 42 // This namespace is injected into SkSL::dsl so that `using namespace SkSL::dsl` enables DSL code 43 // like `Swizzle(var, X, Y, ONE)` to compile without any extra qualifications. 44 namespace SwizzleComponent { 45 46 enum Type : int8_t { 47 X = 0, Y = 1, Z = 2, W = 3, 48 R = 0, G = 1, B = 2, A = 3, 49 ZERO, 50 ONE 51 }; 52 53 } // namespace SwizzleComponent 54 } // namespace SkSL 55 56 #endif 57