aboutsummaryrefslogtreecommitdiffhomepage
path: root/include/core/SkPreConfig.h
blob: b9b46c073a85736d739cb8ed4bf380789130c97f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
/*
 * 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.
 */

// IWYU pragma: private, include "SkTypes.h"

#ifndef SkPreConfig_DEFINED
#define SkPreConfig_DEFINED

// Allows embedders that want to disable macros that take arguments to just
// define that symbol to be one of these
#define SK_NOTHING_ARG1(arg1)
#define SK_NOTHING_ARG2(arg1, arg2)
#define SK_NOTHING_ARG3(arg1, arg2, arg3)

//////////////////////////////////////////////////////////////////////

#if !defined(SK_BUILD_FOR_ANDROID) && !defined(SK_BUILD_FOR_IOS) && !defined(SK_BUILD_FOR_WIN32) && !defined(SK_BUILD_FOR_UNIX) && !defined(SK_BUILD_FOR_MAC)

    #ifdef __APPLE__
        #include "TargetConditionals.h"
    #endif

    #if defined(WIN32) || defined(__SYMBIAN32__)
        #define SK_BUILD_FOR_WIN32
    #elif defined(ANDROID)
        #define SK_BUILD_FOR_ANDROID
    #elif defined(linux) || defined(__linux) || defined(__FreeBSD__) || \
          defined(__OpenBSD__) || defined(__sun) || defined(__NetBSD__) || \
          defined(__DragonFly__) || defined(__GLIBC__) || defined(__GNU__) || \
          defined(__unix__)
        #define SK_BUILD_FOR_UNIX
    #elif TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR
        #define SK_BUILD_FOR_IOS
    #else
        #define SK_BUILD_FOR_MAC
    #endif

#endif

/* Even if the user only defined the framework variant we still need to build
 * the default (NDK-compliant) Android code. Therefore, when attempting to
 * include/exclude something from the framework variant check first that we are
 * building for Android then check the status of the framework define.
 */
#if defined(SK_BUILD_FOR_ANDROID_FRAMEWORK) && !defined(SK_BUILD_FOR_ANDROID)
    #define SK_BUILD_FOR_ANDROID
#endif

//////////////////////////////////////////////////////////////////////

#if !defined(SK_DEBUG) && !defined(SK_RELEASE)
    #ifdef NDEBUG
        #define SK_RELEASE
    #else
        #define SK_DEBUG
    #endif
#endif

#ifdef SK_BUILD_FOR_WIN32
    #if !defined(SK_RESTRICT)
        #define SK_RESTRICT __restrict
    #endif
    #if !defined(SK_WARN_UNUSED_RESULT)
        #define SK_WARN_UNUSED_RESULT
    #endif
#endif

//////////////////////////////////////////////////////////////////////

#if !defined(SK_RESTRICT)
    #define SK_RESTRICT __restrict__
#endif

#if !defined(SK_WARN_UNUSED_RESULT)
    #define SK_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
#endif

//////////////////////////////////////////////////////////////////////

#if !defined(SK_CPU_BENDIAN) && !defined(SK_CPU_LENDIAN)
    #if defined(__sparc) || defined(__sparc__) || \
      defined(_POWER) || defined(__powerpc__) || \
      defined(__ppc__) || defined(__hppa) || \
      defined(__PPC__) || defined(__PPC64__) || \
      defined(_MIPSEB) || defined(__ARMEB__) || \
      defined(__s390__) || \
      (defined(__sh__) && defined(__BIG_ENDIAN__)) || \
      (defined(__ia64) && defined(__BIG_ENDIAN__))
         #define SK_CPU_BENDIAN
    #else
        #define SK_CPU_LENDIAN
    #endif
#endif

//////////////////////////////////////////////////////////////////////

#if defined(__i386) || defined(_M_IX86) ||  defined(__x86_64__) || defined(_M_X64)
  #define SK_CPU_X86 1
#endif

/**
 *  SK_CPU_SSE_LEVEL
 *
 *  If defined, SK_CPU_SSE_LEVEL should be set to the highest supported level.
 *  On non-intel CPU this should be undefined.
 */

#define SK_CPU_SSE_LEVEL_SSE1     10
#define SK_CPU_SSE_LEVEL_SSE2     20
#define SK_CPU_SSE_LEVEL_SSE3     30
#define SK_CPU_SSE_LEVEL_SSSE3    31
#define SK_CPU_SSE_LEVEL_SSE41    41
#define SK_CPU_SSE_LEVEL_SSE42    42
#define SK_CPU_SSE_LEVEL_AVX      51
#define SK_CPU_SSE_LEVEL_AVX2     52

#ifdef SK_BUILD_FOR_IOS
    #define SK_CPU_SSE_LEVEL 0  // We're tired of fighting with opts/ and iOS simulator.
#endif

// Are we in GCC?
#ifndef SK_CPU_SSE_LEVEL
    // These checks must be done in descending order to ensure we set the highest
    // available SSE level.
    #if defined(__AVX2__)
        #define SK_CPU_SSE_LEVEL    SK_CPU_SSE_LEVEL_AVX2
    #elif defined(__AVX__)
        #define SK_CPU_SSE_LEVEL    SK_CPU_SSE_LEVEL_AVX
    #elif defined(__SSE4_2__)
        #define SK_CPU_SSE_LEVEL    SK_CPU_SSE_LEVEL_SSE42
    #elif defined(__SSE4_1__)
        #define SK_CPU_SSE_LEVEL    SK_CPU_SSE_LEVEL_SSE41
    #elif defined(__SSSE3__)
        #define SK_CPU_SSE_LEVEL    SK_CPU_SSE_LEVEL_SSSE3
    #elif defined(__SSE3__)
        #define SK_CPU_SSE_LEVEL    SK_CPU_SSE_LEVEL_SSE3
    #elif defined(__SSE2__)
        #define SK_CPU_SSE_LEVEL    SK_CPU_SSE_LEVEL_SSE2
    #endif
#endif

// Are we in VisualStudio?
#ifndef SK_CPU_SSE_LEVEL
    // These checks must be done in descending order to ensure we set the highest
    // available SSE level. 64-bit intel guarantees at least SSE2 support.
    #if defined(__AVX2__)
        #define SK_CPU_SSE_LEVEL        SK_CPU_SSE_LEVEL_AVX2
    #elif defined(__AVX__)
        #define SK_CPU_SSE_LEVEL        SK_CPU_SSE_LEVEL_AVX
    #elif defined(_M_X64) || defined(_M_AMD64)
        #define SK_CPU_SSE_LEVEL        SK_CPU_SSE_LEVEL_SSE2
    #elif defined(_M_IX86_FP)
        #if _M_IX86_FP >= 2
            #define SK_CPU_SSE_LEVEL    SK_CPU_SSE_LEVEL_SSE2
        #elif _M_IX86_FP == 1
            #define SK_CPU_SSE_LEVEL    SK_CPU_SSE_LEVEL_SSE1
        #endif
    #endif
#endif

//////////////////////////////////////////////////////////////////////
// ARM defines

#if defined(__arm__) && (!defined(__APPLE__) || !TARGET_IPHONE_SIMULATOR)
    #define SK_CPU_ARM32

    #if defined(__GNUC__)
        #if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \
                || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \
                || defined(__ARM_ARCH_7EM__) || defined(_ARM_ARCH_7)
            #define SK_ARM_ARCH 7
        #elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \
                || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) \
                || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) \
                || defined(__ARM_ARCH_6M__) || defined(_ARM_ARCH_6)
            #define SK_ARM_ARCH 6
        #elif defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__) \
                || defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) \
                || defined(__ARM_ARCH_5TEJ__) || defined(_ARM_ARCH_5)
            #define SK_ARM_ARCH 5
        #elif defined(__ARM_ARCH_4__) || defined(__ARM_ARCH_4T__) || defined(_ARM_ARCH_4)
            #define SK_ARM_ARCH 4
        #else
            #define SK_ARM_ARCH 3
        #endif
    #endif
#endif

// Disable ARM64 optimizations for iOS due to complications regarding gyp and iOS.
#if defined(__aarch64__) && !defined(SK_BUILD_FOR_IOS)
    #define SK_CPU_ARM64
#endif

// All 64-bit ARM chips have NEON.  Many 32-bit ARM chips do too.
// TODO: Why don't we want NEON on iOS?
#if !defined(SK_ARM_HAS_NEON) && !defined(SK_BUILD_FOR_IOS) && (defined(__ARM_NEON__) || defined(__ARM_NEON))
    #define SK_ARM_HAS_NEON
#endif

//////////////////////////////////////////////////////////////////////

#if !defined(SKIA_IMPLEMENTATION)
    #define SKIA_IMPLEMENTATION 0
#endif

#if defined(SKIA_DLL)
    #if defined(WIN32)
        #if SKIA_IMPLEMENTATION
            #define SK_API __declspec(dllexport)
        #else
            #define SK_API __declspec(dllimport)
        #endif
    #else
        #define SK_API __attribute__((visibility("default")))
    #endif
#else
    #define SK_API
#endif

//////////////////////////////////////////////////////////////////////

/**
 * Use SK_PURE_FUNC as an attribute to indicate that a function's
 * return value only depends on the value of its parameters. This
 * can help the compiler optimize out successive calls.
 *
 * Usage:
 *      void  function(int params)  SK_PURE_FUNC;
 */
#if defined(__GNUC__)
#  define  SK_PURE_FUNC  __attribute__((pure))
#else
#  define  SK_PURE_FUNC  /* nothing */
#endif

//////////////////////////////////////////////////////////////////////

/**
 * SK_HAS_ATTRIBUTE(<name>) should return true iff the compiler
 * supports __attribute__((<name>)). Mostly important because
 * Clang doesn't support all of GCC attributes.
 */
#if defined(__has_attribute)
#   define SK_HAS_ATTRIBUTE(x) __has_attribute(x)
#elif defined(__GNUC__)
#   define SK_HAS_ATTRIBUTE(x) 1
#else
#   define SK_HAS_ATTRIBUTE(x) 0
#endif

/**
 * SK_ATTRIBUTE_OPTIMIZE_O1 can be used as a function attribute
 * to specify individual optimization level of -O1, if the compiler
 * supports it.
 *
 * NOTE: Clang/ARM (r161757) does not support the 'optimize' attribute.
 */
#if SK_HAS_ATTRIBUTE(optimize)
#   define SK_ATTRIBUTE_OPTIMIZE_O1 __attribute__((optimize("O1")))
#else
#   define SK_ATTRIBUTE_OPTIMIZE_O1 /* nothing */
#endif

#endif