157d94465a
It is used to simplify arm/neon dispatch logic code. Review URL: https://codereview.appspot.com/6458060 git-svn-id: http://skia.googlecode.com/svn/trunk@4958 2bbb7eff-a529-9590-31e7-b0007b416f81
194 lines
5.4 KiB
C
194 lines
5.4 KiB
C
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/*
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* Copyright 2006 The Android Open Source Project
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkPreConfig_DEFINED
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#define SkPreConfig_DEFINED
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#ifdef WEBKIT_VERSION_MIN_REQUIRED
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#include "config.h"
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#endif
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//////////////////////////////////////////////////////////////////////
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#if !defined(SK_BUILD_FOR_ANDROID) && !defined(SK_BUILD_FOR_ANDROID_NDK) && !defined(SK_BUILD_FOR_IOS) && !defined(SK_BUILD_FOR_PALM) && !defined(SK_BUILD_FOR_WINCE) && !defined(SK_BUILD_FOR_WIN32) && !defined(SK_BUILD_FOR_UNIX) && !defined(SK_BUILD_FOR_MAC) && !defined(SK_BUILD_FOR_SDL) && !defined(SK_BUILD_FOR_BREW)
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#ifdef __APPLE__
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#include "TargetConditionals.h"
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#endif
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#if defined(PALMOS_SDK_VERSION)
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#define SK_BUILD_FOR_PALM
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#elif defined(UNDER_CE)
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#define SK_BUILD_FOR_WINCE
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#elif defined(WIN32)
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#define SK_BUILD_FOR_WIN32
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#elif defined(__SYMBIAN32__)
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#define SK_BUILD_FOR_WIN32
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#elif defined(ANDROID_NDK)
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#define SK_BUILD_FOR_ANDROID_NDK
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#elif defined(ANDROID)
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#define SK_BUILD_FOR_ANDROID
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#elif defined(linux) || defined(__FreeBSD__) || defined(__OpenBSD__) || \
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defined(__sun) || defined(__NetBSD__) || defined(__DragonFly__) || \
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defined(__GLIBC__) || defined(__GNU__)
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#define SK_BUILD_FOR_UNIX
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#elif TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR
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#define SK_BUILD_FOR_IOS
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#else
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#define SK_BUILD_FOR_MAC
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#endif
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#endif
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/* Even if the user only defined the NDK variant we still need to build
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* the default Android code. Therefore, when attempting to include/exclude
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* something from the NDK variant check first that we are building for
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* Android then check the status of the NDK define.
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*/
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#if defined(SK_BUILD_FOR_ANDROID_NDK) && !defined(SK_BUILD_FOR_ANDROID)
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#define SK_BUILD_FOR_ANDROID
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#endif
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//////////////////////////////////////////////////////////////////////
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#if !defined(SK_DEBUG) && !defined(SK_RELEASE)
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#ifdef NDEBUG
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#define SK_RELEASE
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#else
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#define SK_DEBUG
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#endif
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#endif
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#ifdef SK_BUILD_FOR_WIN32
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#if !defined(SK_RESTRICT)
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#define SK_RESTRICT __restrict
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#endif
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#if !defined(SK_WARN_UNUSED_RESULT)
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#define SK_WARN_UNUSED_RESULT
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#endif
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#include "sk_stdint.h"
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#endif
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//////////////////////////////////////////////////////////////////////
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#if !defined(SK_RESTRICT)
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#define SK_RESTRICT __restrict__
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#endif
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#if !defined(SK_WARN_UNUSED_RESULT)
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#define SK_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
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#endif
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//////////////////////////////////////////////////////////////////////
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#if !defined(SK_SCALAR_IS_FLOAT) && !defined(SK_SCALAR_IS_FIXED)
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#define SK_SCALAR_IS_FLOAT
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#endif
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//////////////////////////////////////////////////////////////////////
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#if !defined(SK_CPU_BENDIAN) && !defined(SK_CPU_LENDIAN)
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#if defined (__ppc__) || defined(__ppc64__)
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#define SK_CPU_BENDIAN
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#else
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#define SK_CPU_LENDIAN
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#endif
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#endif
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//////////////////////////////////////////////////////////////////////
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/**
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* SK_CPU_SSE_LEVEL
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*
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* If defined, SK_CPU_SSE_LEVEL should be set to the highest supported level.
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* On non-intel CPU this should be undefined.
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*/
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#define SK_CPU_SSE_LEVEL_SSE1 10
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#define SK_CPU_SSE_LEVEL_SSE2 20
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#define SK_CPU_SSE_LEVEL_SSE3 30
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#define SK_CPU_SSE_LEVEL_SSSE3 31
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// Are we in GCC?
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#ifndef SK_CPU_SSE_LEVEL
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#if defined(__SSE2__)
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#define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE2
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#elif defined(__SSE3__)
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#define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE3
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#elif defined(__SSSE3__)
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#define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSSE3
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#endif
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#endif
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// Are we in VisualStudio?
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#ifndef SK_CPU_SSE_LEVEL
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#if _M_IX86_FP == 1
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#define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE1
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#elif _M_IX86_FP >= 2
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#define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE2
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#endif
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#endif
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// 64bit intel guarantees at least SSE2
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#if defined(__x86_64__) || defined(_WIN64)
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#if !defined(SK_CPU_SSE_LEVEL) || (SK_CPU_SSE_LEVEL < SK_CPU_SSE_LEVEL_SSE2)
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#undef SK_CPU_SSE_LEVEL
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#define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE2
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#endif
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#endif
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//////////////////////////////////////////////////////////////////////
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/**
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* THUMB is the only known config where we avoid small branches in
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* favor of more complex math.
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*/
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#if !(defined(__arm__) && defined(__thumb__))
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#define SK_CPU_HAS_CONDITIONAL_INSTR
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#endif
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//////////////////////////////////////////////////////////////////////
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#if !defined(SKIA_IMPLEMENTATION)
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#define SKIA_IMPLEMENTATION 0
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#endif
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#if defined(SKIA_DLL)
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#if defined(WIN32)
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#if SKIA_IMPLEMENTATION
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#define SK_API __declspec(dllexport)
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#else
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#define SK_API __declspec(dllimport)
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#endif
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#else
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#define SK_API __attribute__((visibility("default")))
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#endif
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#else
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#define SK_API
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#endif
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//////////////////////////////////////////////////////////////////////
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/**
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* Use SK_PURE_FUNC as an attribute to indicate that a function's
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* return value only depends on the value of its parameters. This
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* can help the compiler optimize out successive calls.
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*
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* Usage:
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* void function(int params) SK_PURE_FUNC;
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*/
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#if defined(__GNUC__)
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# define SK_PURE_FUNC __attribute__((pure))
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#else
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# define SK_PURE_FUNC /* nothing */
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#endif
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#endif
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