SkPostConfig.h revision 3a67a668dbdc3a6bba68700a6dfdef8164ae0c69 
1
2/*
3 * Copyright 2006 The Android Open Source Project
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9
10#ifndef SkPostConfig_DEFINED
11#define SkPostConfig_DEFINED
12
13#if defined(SK_BUILD_FOR_WIN32) || defined(SK_BUILD_FOR_WINCE)
14    #define SK_BUILD_FOR_WIN
15#endif
16
17#if defined(SK_DEBUG) && defined(SK_RELEASE)
18    #error "cannot define both SK_DEBUG and SK_RELEASE"
19#elif !defined(SK_DEBUG) && !defined(SK_RELEASE)
20    #error "must define either SK_DEBUG or SK_RELEASE"
21#endif
22
23#if defined SK_SUPPORT_UNITTEST && !defined(SK_DEBUG)
24    #error "can't have unittests without debug"
25#endif
26
27#if defined(SK_SCALAR_IS_FIXED) && defined(SK_SCALAR_IS_FLOAT)
28    #error "cannot define both SK_SCALAR_IS_FIXED and SK_SCALAR_IS_FLOAT"
29#elif !defined(SK_SCALAR_IS_FIXED) && !defined(SK_SCALAR_IS_FLOAT)
30    #define SK_SCALAR_IS_FLOAT
31#endif
32
33#if defined(SK_CPU_LENDIAN) && defined(SK_CPU_BENDIAN)
34    #error "cannot define both SK_CPU_LENDIAN and SK_CPU_BENDIAN"
35#elif !defined(SK_CPU_LENDIAN) && !defined(SK_CPU_BENDIAN)
36    #error "must define either SK_CPU_LENDIAN or SK_CPU_BENDIAN"
37#endif
38
39// ensure the port has defined all of these, or none of them
40#ifdef SK_A32_SHIFT
41    #if !defined(SK_R32_SHIFT) || !defined(SK_G32_SHIFT) || !defined(SK_B32_SHIFT)
42        #error "all or none of the 32bit SHIFT amounts must be defined"
43    #endif
44#else
45    #if defined(SK_R32_SHIFT) || defined(SK_G32_SHIFT) || defined(SK_B32_SHIFT)
46        #error "all or none of the 32bit SHIFT amounts must be defined"
47    #endif
48#endif
49
50#if !defined(SK_HAS_COMPILER_FEATURE)
51    #if defined(__has_feature)
52        #define SK_HAS_COMPILER_FEATURE(x) __has_feature(x)
53    #else
54        #define SK_HAS_COMPILER_FEATURE(x) 0
55    #endif
56#endif
57
58/**
59 * The clang static analyzer likes to know that when the program is not
60 * expected to continue (crash, assertion failure, etc). It will notice that
61 * some combination of parameters lead to a function call that does not return.
62 * It can then make appropriate assumptions about the parameters in code
63 * executed only if the non-returning function was *not* called.
64 */
65#if !defined(SkNO_RETURN_HINT)
66    #if SK_HAS_COMPILER_FEATURE(attribute_analyzer_noreturn)
67        namespace {
68            inline void SkNO_RETURN_HINT() __attribute__((analyzer_noreturn));
69            void SkNO_RETURN_HINT() {}
70        }
71    #else
72        #define SkNO_RETURN_HINT() do {} while (false)
73    #endif
74#endif
75
76#if defined(SK_ZLIB_INCLUDE) && defined(SK_SYSTEM_ZLIB)
77    #error "cannot define both SK_ZLIB_INCLUDE and SK_SYSTEM_ZLIB"
78#elif defined(SK_ZLIB_INCLUDE) || defined(SK_SYSTEM_ZLIB)
79    #define SK_HAS_ZLIB
80#endif
81
82///////////////////////////////////////////////////////////////////////////////
83
84#ifndef SkNEW
85    #define SkNEW(type_name)                new type_name
86    #define SkNEW_ARGS(type_name, args)     new type_name args
87    #define SkNEW_ARRAY(type_name, count)   new type_name[count]
88    #define SkDELETE(obj)                   delete obj
89    #define SkDELETE_ARRAY(array)           delete[] array
90#endif
91
92#ifndef SK_CRASH
93#if 1   // set to 0 for infinite loop, which can help connecting gdb
94    #define SK_CRASH() do { SkNO_RETURN_HINT(); *(int *)(uintptr_t)0xbbadbeef = 0; } while (false)
95#else
96    #define SK_CRASH() do { SkNO_RETURN_HINT(); } while (true)
97#endif
98#endif
99
100///////////////////////////////////////////////////////////////////////////////
101
102#if defined(SK_SOFTWARE_FLOAT) && defined(SK_SCALAR_IS_FLOAT)
103    // if this is defined, we convert floats to 2scompliment ints for compares
104    #ifndef SK_SCALAR_SLOW_COMPARES
105        #define SK_SCALAR_SLOW_COMPARES
106    #endif
107    #ifndef SK_USE_FLOATBITS
108        #define SK_USE_FLOATBITS
109    #endif
110#endif
111
112#ifdef SK_BUILD_FOR_WIN
113    // we want lean_and_mean when we include windows.h
114    #ifndef WIN32_LEAN_AND_MEAN
115        #define WIN32_LEAN_AND_MEAN
116        #define WIN32_IS_MEAN_WAS_LOCALLY_DEFINED
117    #endif
118
119    #include <windows.h>
120
121    #ifdef WIN32_IS_MEAN_WAS_LOCALLY_DEFINED
122        #undef WIN32_LEAN_AND_MEAN
123    #endif
124
125    #ifndef SK_DEBUGBREAK
126        #define SK_DEBUGBREAK(cond)     do { if (!(cond)) { SkNO_RETURN_HINT(); __debugbreak(); }} while (false)
127    #endif
128
129    #ifndef SK_A32_SHIFT
130        #define SK_A32_SHIFT 24
131        #define SK_R32_SHIFT 16
132        #define SK_G32_SHIFT 8
133        #define SK_B32_SHIFT 0
134    #endif
135
136#elif defined(SK_BUILD_FOR_MAC)
137    #ifndef SK_DEBUGBREAK
138        #define SK_DEBUGBREAK(cond)     do { if (!(cond)) SK_CRASH(); } while (false)
139    #endif
140#else
141    #ifdef SK_DEBUG
142        #include <stdio.h>
143        #ifndef SK_DEBUGBREAK
144            #define SK_DEBUGBREAK(cond) do { if (cond) break; \
145                SkDebugf("%s:%d: failed assertion \"%s\"\n", \
146                __FILE__, __LINE__, #cond); SK_CRASH(); } while (false)
147        #endif
148    #endif
149#endif
150
151/*
152 *  We check to see if the SHIFT value has already been defined.
153 *  if not, we define it ourself to some default values. We default to OpenGL
154 *  order (in memory: r,g,b,a)
155 */
156#ifndef SK_A32_SHIFT
157    #ifdef SK_CPU_BENDIAN
158        #define SK_R32_SHIFT    24
159        #define SK_G32_SHIFT    16
160        #define SK_B32_SHIFT    8
161        #define SK_A32_SHIFT    0
162    #else
163        #define SK_R32_SHIFT    0
164        #define SK_G32_SHIFT    8
165        #define SK_B32_SHIFT    16
166        #define SK_A32_SHIFT    24
167    #endif
168#endif
169
170//  stdlib macros
171
172#if 0
173#if !defined(strlen) && defined(SK_DEBUG)
174    extern size_t sk_strlen(const char*);
175    #define strlen(s)   sk_strlen(s)
176#endif
177#ifndef sk_strcpy
178    #define sk_strcpy(dst, src)     strcpy(dst, src)
179#endif
180#ifndef sk_strchr
181    #define sk_strchr(s, c)         strchr(s, c)
182#endif
183#ifndef sk_strrchr
184    #define sk_strrchr(s, c)        strrchr(s, c)
185#endif
186#ifndef sk_strcmp
187    #define sk_strcmp(s, t)         strcmp(s, t)
188#endif
189#ifndef sk_strncmp
190    #define sk_strncmp(s, t, n)     strncmp(s, t, n)
191#endif
192#ifndef sk_memcpy
193    #define sk_memcpy(dst, src, n)  memcpy(dst, src, n)
194#endif
195#ifndef memmove
196    #define memmove(dst, src, n)    memmove(dst, src, n)
197#endif
198#ifndef sk_memset
199    #define sk_memset(dst, val, n)  memset(dst, val, n)
200#endif
201#ifndef sk_memcmp
202    #define sk_memcmp(s, t, n)      memcmp(s, t, n)
203#endif
204
205#define sk_strequal(s, t)           (!sk_strcmp(s, t))
206#define sk_strnequal(s, t, n)       (!sk_strncmp(s, t, n))
207#endif
208
209//////////////////////////////////////////////////////////////////////
210
211#if defined(SK_BUILD_FOR_WIN32) || defined(SK_BUILD_FOR_MAC)
212    #ifndef SkLONGLONG
213        #ifdef SK_BUILD_FOR_WIN32
214            #define SkLONGLONG  __int64
215        #else
216            #define SkLONGLONG  long long
217        #endif
218    #endif
219#endif
220
221//////////////////////////////////////////////////////////////////////////////////////////////
222#ifndef SK_BUILD_FOR_WINCE
223#include <string.h>
224#include <stdlib.h>
225#else
226#define _CMNINTRIN_DECLARE_ONLY
227#include "cmnintrin.h"
228#endif
229
230#if defined SK_DEBUG && defined SK_BUILD_FOR_WIN32
231//#define _CRTDBG_MAP_ALLOC
232#ifdef free
233#undef free
234#endif
235#include <crtdbg.h>
236#undef free
237
238#ifdef SK_DEBUGx
239#if defined(SK_SIMULATE_FAILED_MALLOC) && defined(__cplusplus)
240    void * operator new(
241        size_t cb,
242        int nBlockUse,
243        const char * szFileName,
244        int nLine,
245        int foo
246        );
247    void * operator new[](
248        size_t cb,
249        int nBlockUse,
250        const char * szFileName,
251        int nLine,
252        int foo
253        );
254    void operator delete(
255        void *pUserData,
256        int, const char*, int, int
257        );
258    void operator delete(
259        void *pUserData
260        );
261    void operator delete[]( void * p );
262    #define DEBUG_CLIENTBLOCK   new( _CLIENT_BLOCK, __FILE__, __LINE__, 0)
263#else
264    #define DEBUG_CLIENTBLOCK   new( _CLIENT_BLOCK, __FILE__, __LINE__)
265#endif
266    #define new DEBUG_CLIENTBLOCK
267#else
268#define DEBUG_CLIENTBLOCK
269#endif // _DEBUG
270
271
272#endif
273
274#endif
275
276//////////////////////////////////////////////////////////////////////
277
278#ifndef SK_OVERRIDE
279#if defined(_MSC_VER)
280#define SK_OVERRIDE override
281#elif defined(__clang__)
282// Some documentation suggests we should be using __attribute__((override)),
283// but it doesn't work.
284#define SK_OVERRIDE override
285#else
286// Linux GCC ignores "__attribute__((override))" and rejects "override".
287#define SK_OVERRIDE
288#endif
289#endif
290
291//////////////////////////////////////////////////////////////////////
292
293#ifndef SK_PRINTF_LIKE
294#if defined(__clang__) || defined(__GNUC__)
295#define SK_PRINTF_LIKE(A, B) __attribute__((format(printf, (A), (B))))
296#else
297#define SK_PRINTF_LIKE(A, B)
298#endif
299#endif
300
301//////////////////////////////////////////////////////////////////////
302
303#ifndef SK_SIZE_T_SPECIFIER
304#if defined(_MSC_VER)
305#define SK_SIZE_T_SPECIFIER "%Iu"
306#else
307#define SK_SIZE_T_SPECIFIER "%zu"
308#endif
309#endif
310
311//////////////////////////////////////////////////////////////////////
312
313#ifndef SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
314#define SK_ALLOW_STATIC_GLOBAL_INITIALIZERS 1
315#endif
316