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-rw-r--r--core/SkScalarCompare.h38
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diff --git a/core/SkScalarCompare.h b/core/SkScalarCompare.h
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-
-/*
- * Copyright 2006 The Android Open Source Project
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-
-#ifndef SkScalarCompare_DEFINED
-#define SkScalarCompare_DEFINED
-
-#include "SkFloatBits.h"
-#include "SkRect.h"
-
-/** Skia can spend a lot of time just comparing scalars (e.g. quickReject).
- When scalar==fixed, this is very fast, and when scalar==hardware-float, this
- is also reasonable, but if scalar==software-float, then each compare can be
- a function call and take real time. To account for that, we have the flag
- SK_SCALAR_SLOW_COMPARES.
-
- If this is defined, we have a special trick where we quickly convert floats
- to a 2's compliment form, and then treat them as signed 32bit integers. In
- this form we lose a few subtlties (e.g. NaNs always comparing false) but
- we gain the speed of integer compares.
- */
-
-#ifdef SK_SCALAR_SLOW_COMPARES
- typedef int32_t SkScalarCompareType;
- typedef SkIRect SkRectCompareType;
- #define SkScalarToCompareType(x) SkScalarAs2sCompliment(x)
-#else
- typedef SkScalar SkScalarCompareType;
- typedef SkRect SkRectCompareType;
- #define SkScalarToCompareType(x) (x)
-#endif
-
-#endif