1 2 /* 3 * Copyright 2010 Google Inc. 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 11 #ifndef GrConfig_DEFINED 12 #define GrConfig_DEFINED 13 14 #include "include/core/SkTypes.h" 15 16 /////////////////////////////////////////////////////////////////////////////// 17 // preconfig section: 18 // 19 // All the work before including GrUserConfig.h should center around guessing 20 // what platform we're on, and defining low-level symbols based on that. 21 // 22 // A build environment may have already defined symbols, so we first check 23 // for that 24 // 25 26 // hack to ensure we know what sort of Apple platform we're on 27 #if defined(__APPLE_CPP__) || defined(__APPLE_CC__) 28 #include <TargetConditionals.h> 29 #endif 30 31 /** 32 * Gr defines are set to 0 or 1, rather than being undefined or defined 33 */ 34 35 #if !defined(GR_CACHE_STATS) 36 #if defined(SK_DEBUG) || defined(SK_DUMP_STATS) 37 #define GR_CACHE_STATS 1 38 #else 39 #define GR_CACHE_STATS 0 40 #endif 41 #endif 42 43 #if !defined(GR_GPU_STATS) 44 #if defined(SK_DEBUG) || defined(SK_DUMP_STATS) || defined(GR_TEST_UTILS) 45 #define GR_GPU_STATS 1 46 #else 47 #define GR_GPU_STATS 0 48 #endif 49 #endif 50 51 /////////////////////////////////////////////////////////////////////////////// 52 /////////////////////////////////////////////////////////////////////////////// 53 54 /* 55 * Include stdint.h with defines that trigger declaration of C99 limit/const 56 * macros here before anyone else has a chance to include stdint.h without 57 * these. 58 */ 59 #ifndef __STDC_LIMIT_MACROS 60 #define __STDC_LIMIT_MACROS 61 #endif 62 #ifndef __STDC_CONSTANT_MACROS 63 #define __STDC_CONSTANT_MACROS 64 #endif 65 #include <stdint.h> 66 67 /////////////////////////////////////////////////////////////////////////////// 68 /////////////////////////////////////////////////////////////////////////////// 69 // postconfig section: 70 // 71 72 /** 73 * GR_STRING makes a string of X where X is expanded before conversion to a string 74 * if X itself contains macros. 75 */ 76 #define GR_STRING(X) GR_STRING_IMPL(X) 77 #define GR_STRING_IMPL(X) #X 78 79 /** 80 * GR_CONCAT concatenates X and Y where each is expanded before 81 * contanenation if either contains macros. 82 */ 83 #define GR_CONCAT(X,Y) GR_CONCAT_IMPL(X,Y) 84 #define GR_CONCAT_IMPL(X,Y) X##Y 85 86 /** 87 * Creates a string of the form "<filename>(<linenumber>) : " 88 */ 89 #define GR_FILE_AND_LINE_STR __FILE__ "(" GR_STRING(__LINE__) ") : " 90 91 /** 92 * Compilers have different ways of issuing warnings. This macro 93 * attempts to abstract them, but may need to be specialized for your 94 * particular compiler. 95 * To insert compiler warnings use "#pragma message GR_WARN(<string>)" 96 */ 97 #if defined(_MSC_VER) 98 #define GR_WARN(MSG) (GR_FILE_AND_LINE_STR "WARNING: " MSG) 99 #else//__GNUC__ - may need other defines for different compilers 100 #define GR_WARN(MSG) ("WARNING: " MSG) 101 #endif 102 103 /** 104 * GR_ALWAYSBREAK is an unconditional break in all builds. 105 */ 106 #if !defined(GR_ALWAYSBREAK) 107 #if defined(SK_BUILD_FOR_WIN) 108 #define GR_ALWAYSBREAK SkNO_RETURN_HINT(); __debugbreak() 109 #else 110 // TODO: do other platforms really not have continuable breakpoints? 111 // sign extend for 64bit architectures to be sure this is 112 // in the high address range 113 #define GR_ALWAYSBREAK SkNO_RETURN_HINT(); *((int*)(int64_t)(int32_t)0xbeefcafe) = 0; 114 #endif 115 #endif 116 117 /** 118 * GR_DEBUGBREAK is an unconditional break in debug builds. 119 */ 120 #if !defined(GR_DEBUGBREAK) 121 #ifdef SK_DEBUG 122 #define GR_DEBUGBREAK GR_ALWAYSBREAK 123 #else 124 #define GR_DEBUGBREAK 125 #endif 126 #endif 127 128 /** 129 * GR_ALWAYSASSERT is an assertion in all builds. 130 */ 131 #if !defined(GR_ALWAYSASSERT) 132 #define GR_ALWAYSASSERT(COND) \ 133 do { \ 134 if (!(COND)) { \ 135 SkDebugf("%s %s failed\n", GR_FILE_AND_LINE_STR, #COND); \ 136 GR_ALWAYSBREAK; \ 137 } \ 138 } while (false) 139 #endif 140 141 /** 142 * GR_DEBUGASSERT is an assertion in debug builds only. 143 */ 144 #if !defined(GR_DEBUGASSERT) 145 #ifdef SK_DEBUG 146 #define GR_DEBUGASSERT(COND) GR_ALWAYSASSERT(COND) 147 #else 148 #define GR_DEBUGASSERT(COND) 149 #endif 150 #endif 151 152 /** 153 * Prettier forms of the above macros. 154 */ 155 #define GrAlwaysAssert(COND) GR_ALWAYSASSERT(COND) 156 157 /** 158 * GR_STATIC_ASSERT is a compile time assertion. Depending on the platform 159 * it may print the message in the compiler log. Obviously, the condition must 160 * be evaluatable at compile time. 161 */ 162 #define GR_STATIC_ASSERT(CONDITION) static_assert(CONDITION, "bug") 163 164 #endif 165