1 /* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef SkUserConfig_DEFINED 18 #define SkUserConfig_DEFINED 19 20 /* SkTypes.h, the root of the public header files, does the following trick: 21 22 #include "SkPreConfig.h" 23 #include "SkUserConfig.h" 24 #include "SkPostConfig.h" 25 26 SkPreConfig.h runs first, and it is responsible for initializing certain 27 skia defines. 28 29 SkPostConfig.h runs last, and its job is to just check that the final 30 defines are consistent (i.e. that we don't have mutually conflicting 31 defines). 32 33 SkUserConfig.h (this file) runs in the middle. It gets to change or augment 34 the list of flags initially set in preconfig, and then postconfig checks 35 that everything still makes sense. 36 37 Below are optional defines that add, subtract, or change default behavior 38 in Skia. Your port can locally edit this file to enable/disable flags as 39 you choose, or these can be delared on your command line (i.e. -Dfoo). 40 41 By default, this include file will always default to having all of the flags 42 commented out, so including it will have no effect. 43 */ 44 45 /////////////////////////////////////////////////////////////////////////////// 46 47 // 48 // ANDROID Specific changes - NO NOT CHECK BACK INTO code.google.com/p/skia 49 // 50 51 // do this build check for other tools that still read this header 52 #ifdef ANDROID 53 #include <utils/misc.h> 54 #endif 55 56 #ifdef SK_BUILD_FOR_MAC 57 #undef SK_BUILD_FOR_MAC 58 #endif 59 #define SK_BUILD_FOR_UNIX 60 61 /* Scalars (the fractional value type in skia) can be implemented either as 62 floats or 16.16 integers (fixed). Exactly one of these two symbols must be 63 defined. 64 */ 65 #define SK_SCALAR_IS_FLOAT 66 #undef SK_SCALAR_IS_FIXED 67 68 69 /* Somewhat independent of how SkScalar is implemented, Skia also wants to know 70 if it can use floats at all. Naturally, if SK_SCALAR_IS_FLOAT is defined, 71 then so muse SK_CAN_USE_FLOAT, but if scalars are fixed, SK_CAN_USE_FLOAT 72 can go either way. 73 */ 74 #define SK_CAN_USE_FLOAT 75 76 /* For some performance-critical scalar operations, skia will optionally work 77 around the standard float operators if it knows that the CPU does not have 78 native support for floats. If your environment uses software floating point, 79 define this flag. 80 */ 81 //#define SK_SOFTWARE_FLOAT 82 83 84 /* Skia has lots of debug-only code. Often this is just null checks or other 85 parameter checking, but sometimes it can be quite intrusive (e.g. check that 86 each 32bit pixel is in premultiplied form). This code can be very useful 87 during development, but will slow things down in a shipping product. 88 89 By default, these mutually exclusive flags are defined in SkPreConfig.h, 90 based on the presence or absence of NDEBUG, but that decision can be changed 91 here. 92 */ 93 //#define SK_DEBUG 94 //#define SK_RELEASE 95 96 97 /* If, in debugging mode, Skia needs to stop (presumably to invoke a debugger) 98 it will call SK_CRASH(). If this is not defined it, it is defined in 99 SkPostConfig.h to write to an illegal address 100 */ 101 //#define SK_CRASH() *(int *)(uintptr_t)0 = 0 102 103 104 /* preconfig will have attempted to determine the endianness of the system, 105 but you can change these mutually exclusive flags here. 106 */ 107 #if __BYTE_ORDER == __BIG_ENDIAN 108 #define SK_CPU_BENDIAN 109 #undef SK_CPU_LENDIAN 110 #else 111 #define SK_CPU_LENDIAN 112 #undef SK_CPU_BENDIAN 113 #endif 114 115 116 /* Some compilers don't support long long for 64bit integers. If yours does 117 not, define this to the appropriate type. 118 */ 119 #define SkLONGLONG int64_t 120 121 122 /* Some envorinments do not suport writable globals (eek!). If yours does not, 123 define this flag. 124 */ 125 //#define SK_USE_RUNTIME_GLOBALS 126 127 128 /* To write debug messages to a console, skia will call SkDebugf(...) following 129 printf conventions (e.g. const char* format, ...). If you want to redirect 130 this to something other than printf, define yours here 131 */ 132 #define SkDebugf(...) Android_SkDebugf(__FILE__, __LINE__, \ 133 __FUNCTION__, __VA_ARGS__) 134 void Android_SkDebugf(const char* file, int line, 135 const char* function, const char* format, ...); 136 137 /* To enable additional blitters (and fontscaler code) to support separate 138 alpha channels for R G B channels, define SK_SUPPORT_LCDTEXT 139 */ 140 //#define SK_SUPPORT_LCDTEXT 141 142 /* If zlib is available and you want to support the flate compression 143 algorithm (used in PDF generation), define SK_ZLIB_INCLUDE to be the 144 include path. 145 */ 146 //#define SK_ZLIB_INCLUDE <zlib.h> 147 148 /* Define this to allow PDF scalars above 32k. The PDF/A spec doesn't allow 149 them, but modern PDF interpreters should handle them just fine. 150 */ 151 //#define SK_ALLOW_LARGE_PDF_SCALARS 152 153 /* Define this to remove dimension checks on bitmaps. Not all blits will be 154 correct yet, so this is mostly for debugging the implementation. 155 */ 156 //#define SK_ALLOW_OVER_32K_BITMAPS 157 158 /* If SK_DEBUG is defined, then you can optionally define SK_SUPPORT_UNITTEST 159 which will run additional self-tests at startup. These can take a long time, 160 so this flag is optional. 161 */ 162 #ifdef SK_DEBUG 163 #define SK_SUPPORT_UNITTEST 164 #endif 165 166 /* Change the ordering to work in X windows. 167 */ 168 #ifdef SK_SAMPLES_FOR_X 169 #define SK_R32_SHIFT 16 170 #define SK_G32_SHIFT 8 171 #define SK_B32_SHIFT 0 172 #define SK_A32_SHIFT 24 173 #endif 174 175 #endif 176 177
