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/*
* Copyright 2019 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SKSL_DEFINES
#define SKSL_DEFINES
#include <cstdint>
#include "include/core/SkTypes.h"
#include "include/private/base/SkTArray.h"
using SKSL_INT = int64_t;
using SKSL_FLOAT = float;
namespace SkSL {
class Expression;
class Statement;
using ComponentArray = SkSTArray<4, int8_t>; // for Swizzles
class ExpressionArray : public SkSTArray<2, std::unique_ptr<Expression>> {
public:
using SkSTArray::SkSTArray;
/** Returns a new ExpressionArray containing a clone of every element. */
ExpressionArray clone() const;
};
using StatementArray = SkSTArray<2, std::unique_ptr<Statement>>;
// Functions larger than this (measured in IR nodes) will not be inlined. This growth factor
// accounts for the number of calls being inlined--i.e., a function called five times (that is, with
// five inlining opportunities) would be considered 5x larger than if it were called once. This
// default threshold value is arbitrary, but tends to work well in practice.
static constexpr int kDefaultInlineThreshold = 50;
// A hard upper limit on the number of variable slots allowed in a function/global scope.
// This is an arbitrary limit, but is needed to prevent code generation from taking unbounded
// amounts of time or space.
static constexpr int kVariableSlotLimit = 100000;
// The SwizzleComponent namespace is used both by the SkSL::Swizzle expression, and the DSL swizzle.
// This namespace is injected into SkSL::dsl so that `using namespace SkSL::dsl` enables DSL code
// like `Swizzle(var, X, Y, ONE)` to compile without any extra qualifications.
namespace SwizzleComponent {
enum Type : int8_t {
X = 0, Y = 1, Z = 2, W = 3,
R = 4, G = 5, B = 6, A = 7,
S = 8, T = 9, P = 10, Q = 11,
UL = 12, UT = 13, UR = 14, UB = 15,
ZERO,
ONE
};
} // namespace SwizzleComponent
} // namespace SkSL
#endif
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