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 /* Scalars (the fractional value type in skia) can be implemented either as 48 floats or 16.16 integers (fixed). Exactly one of these two symbols must be 49 defined. 50 */ 51 //#define SK_SCALAR_IS_FLOAT 52 //#define SK_SCALAR_IS_FIXED 53 54 55 /* Somewhat independent of how SkScalar is implemented, Skia also wants to know 56 if it can use floats at all. Naturally, if SK_SCALAR_IS_FLOAT is defined, 57 then so muse SK_CAN_USE_FLOAT, but if scalars are fixed, SK_CAN_USE_FLOAT 58 can go either way. 59 */ 60 //#define SK_CAN_USE_FLOAT 61 62 /* For some performance-critical scalar operations, skia will optionally work 63 around the standard float operators if it knows that the CPU does not have 64 native support for floats. If your environment uses software floating point, 65 define this flag. 66 */ 67 //#define SK_SOFTWARE_FLOAT 68 69 70 /* Skia has lots of debug-only code. Often this is just null checks or other 71 parameter checking, but sometimes it can be quite intrusive (e.g. check that 72 each 32bit pixel is in premultiplied form). This code can be very useful 73 during development, but will slow things down in a shipping product. 74 75 By default, these mutually exclusive flags are defined in SkPreConfig.h, 76 based on the presence or absence of NDEBUG, but that decision can be changed 77 here. 78 */ 79 //#define SK_DEBUG 80 //#define SK_RELEASE 81 82 83 /* If, in debugging mode, Skia needs to stop (presumably to invoke a debugger) 84 it will call SK_CRASH(). If this is not defined it, it is defined in 85 SkPostConfig.h to write to an illegal address 86 */ 87 //#define SK_CRASH() *(int *)(uintptr_t)0 = 0 88 89 90 /* preconfig will have attempted to determine the endianness of the system, 91 but you can change these mutually exclusive flags here. 92 */ 93 //#define SK_CPU_BENDIAN 94 //#define SK_CPU_LENDIAN 95 96 97 /* Some compilers don't support long long for 64bit integers. If yours does 98 not, define this to the appropriate type. 99 */ 100 //#define SkLONGLONG int64_t 101 102 103 /* Some envorinments do not suport writable globals (eek!). If yours does not, 104 define this flag. 105 */ 106 //#define SK_USE_RUNTIME_GLOBALS 107 108 /* If zlib is available and you want to support the flate compression 109 algorithm (used in PDF generation), define SK_ZLIB_INCLUDE to be the 110 include path. 111 */ 112 //#define SK_ZLIB_INCLUDE <zlib.h> 113 #define SK_ZLIB_INCLUDE "third_party/zlib/zlib.h" 114 115 /* Define this to allow PDF scalars above 32k. The PDF/A spec doesn't allow 116 them, but modern PDF interpreters should handle them just fine. 117 */ 118 //#define SK_ALLOW_LARGE_PDF_SCALARS 119 120 /* Define this to provide font subsetter for font subsetting when generating 121 PDF documents. 122 */ 123 #define SK_SFNTLY_SUBSETTER \ 124 "third_party/sfntly/cpp/src/sample/chromium/font_subsetter.h" 125 126 /* To write debug messages to a console, skia will call SkDebugf(...) following 127 printf conventions (e.g. const char* format, ...). If you want to redirect 128 this to something other than printf, define yours here 129 */ 130 //#define SkDebugf(...) MyFunction(__VA_ARGS__) 131 132 133 /* If SK_DEBUG is defined, then you can optionally define SK_SUPPORT_UNITTEST 134 which will run additional self-tests at startup. These can take a long time, 135 so this flag is optional. 136 */ 137 #ifdef SK_DEBUG 138 #define SK_SUPPORT_UNITTEST 139 #endif 140 141 /* If your system embeds skia and has complex event logging, define this 142 symbol to name a file that maps the following macros to your system's 143 equivalents: 144 SK_TRACE_EVENT0(event) 145 SK_TRACE_EVENT1(event, name1, value1) 146 SK_TRACE_EVENT2(event, name1, value1, name2, value2) 147 src/utils/SkDebugTrace.h has a trivial implementation that writes to 148 the debug output stream. If SK_USER_TRACE_INCLUDE_FILE is not defined, 149 SkTrace.h will define the above three macros to do nothing. 150 */ 151 #undef SK_USER_TRACE_INCLUDE_FILE 152 153 // ===== Begin Chrome-specific definitions ===== 154 155 #ifdef SK_DEBUG 156 #define SK_REF_CNT_MIXIN_INCLUDE "sk_ref_cnt_ext_debug.h" 157 #else 158 #define SK_REF_CNT_MIXIN_INCLUDE "sk_ref_cnt_ext_release.h" 159 #endif 160 161 #define SK_SCALAR_IS_FLOAT 162 #undef SK_SCALAR_IS_FIXED 163 164 #define SK_MSCALAR_IS_FLOAT 165 #undef SK_MSCALAR_IS_DOUBLE 166 167 #define GR_MAX_OFFSCREEN_AA_DIM 512 168 169 // Log the file and line number for assertions. 170 #define SkDebugf(...) SkDebugf_FileLine(__FILE__, __LINE__, false, __VA_ARGS__) 171 SK_API void SkDebugf_FileLine(const char* file, int line, bool fatal, 172 const char* format, ...); 173 174 // Marking the debug print as "fatal" will cause a debug break, so we don't need 175 // a separate crash call here. 176 #define SK_DEBUGBREAK(cond) do { if (!(cond)) { \ 177 SkDebugf_FileLine(__FILE__, __LINE__, true, \ 178 "%s:%d: failed assertion \"%s\"\n", \ 179 __FILE__, __LINE__, #cond); } } while (false) 180 181 #if !defined(ANDROID) // On Android, we use the skia default settings. 182 #define SK_A32_SHIFT 24 183 #define SK_R32_SHIFT 16 184 #define SK_G32_SHIFT 8 185 #define SK_B32_SHIFT 0 186 #endif 187 188 #if defined(SK_BUILD_FOR_WIN32) 189 190 #define SK_BUILD_FOR_WIN 191 192 // Skia uses this deprecated bzero function to fill zeros into a string. 193 #define bzero(str, len) memset(str, 0, len) 194 195 #elif defined(SK_BUILD_FOR_MAC) 196 197 #define SK_CPU_LENDIAN 198 #undef SK_CPU_BENDIAN 199 200 #elif defined(SK_BUILD_FOR_UNIX) 201 202 // Prefer FreeType's emboldening algorithm to Skia's 203 // TODO: skia used to just use hairline, but has improved since then, so 204 // we should revisit this choice... 205 #define SK_USE_FREETYPE_EMBOLDEN 206 207 #ifdef SK_CPU_BENDIAN 208 // Above we set the order for ARGB channels in registers. I suspect that, on 209 // big endian machines, you can keep this the same and everything will work. 210 // The in-memory order will be different, of course, but as long as everything 211 // is reading memory as words rather than bytes, it will all work. However, if 212 // you find that colours are messed up I thought that I would leave a helpful 213 // locator for you. Also see the comments in 214 // base/gfx/bitmap_platform_device_linux.h 215 #error Read the comment at this location 216 #endif 217 218 #endif 219 220 // The default crash macro writes to badbeef which can cause some strange 221 // problems. Instead, pipe this through to the logging function as a fatal 222 // assertion. 223 #define SK_CRASH() SkDebugf_FileLine(__FILE__, __LINE__, true, "SK_CRASH") 224 225 // Uncomment the following line to forward skia trace events to Chrome 226 // tracing. 227 // #define SK_USER_TRACE_INCLUDE_FILE "skia/ext/skia_trace_shim.h" 228 229 #ifndef SK_ATOMICS_PLATFORM_H 230 # if defined(SK_BUILD_FOR_WIN) 231 # define SK_ATOMICS_PLATFORM_H "third_party/skia/src/ports/SkAtomics_win.h" 232 # elif defined(SK_BUILD_FOR_ANDROID_FRAMEWORK) 233 # define SK_ATOMICS_PLATFORM_H "third_party/skia/src/ports/SkAtomics_android.h" 234 # else 235 # define SK_ATOMICS_PLATFORM_H "third_party/skia/src/ports/SkAtomics_sync.h" 236 # endif 237 #endif 238 239 #ifndef SK_MUTEX_PLATFORM_H 240 # if defined(SK_BUILD_FOR_WIN) 241 # define SK_MUTEX_PLATFORM_H "third_party/skia/src/ports/SkMutex_win.h" 242 # else 243 # define SK_MUTEX_PLATFORM_H "third_party/skia/src/ports/SkMutex_pthread.h" 244 # endif 245 #endif 246 247 // ===== End Chrome-specific definitions ===== 248 249 #endif 250
