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 SkUserConfig_DEFINED 11 #define SkUserConfig_DEFINED 12 13 /* SkTypes.h, the root of the public header files, does the following trick: 14 15 #include "SkPreConfig.h" 16 #include "SkUserConfig.h" 17 #include "SkPostConfig.h" 18 19 SkPreConfig.h runs first, and it is responsible for initializing certain 20 skia defines. 21 22 SkPostConfig.h runs last, and its job is to just check that the final 23 defines are consistent (i.e. that we don't have mutually conflicting 24 defines). 25 26 SkUserConfig.h (this file) runs in the middle. It gets to change or augment 27 the list of flags initially set in preconfig, and then postconfig checks 28 that everything still makes sense. 29 30 Below are optional defines that add, subtract, or change default behavior 31 in Skia. Your port can locally edit this file to enable/disable flags as 32 you choose, or these can be delared on your command line (i.e. -Dfoo). 33 34 By default, this include file will always default to having all of the flags 35 commented out, so including it will have no effect. 36 */ 37 38 /////////////////////////////////////////////////////////////////////////////// 39 40 // 41 // ANDROID Specific changes - NO NOT CHECK BACK INTO code.google.com/p/skia 42 // 43 44 #define SK_BUILD_FOR_ANDROID 45 46 // do this build check for other tools that still read this header 47 #ifdef ANDROID 48 #include <utils/misc.h> 49 #endif 50 51 #define SK_USE_POSIX_THREADS 52 53 /* Scalars (the fractional value type in skia) can be implemented either as 54 floats or 16.16 integers (fixed). Exactly one of these two symbols must be 55 defined. 56 */ 57 #define SK_SCALAR_IS_FLOAT 58 #undef SK_SCALAR_IS_FIXED 59 60 61 /* For some performance-critical scalar operations, skia will optionally work 62 around the standard float operators if it knows that the CPU does not have 63 native support for floats. If your environment uses software floating point, 64 define this flag. 65 */ 66 //#define SK_SOFTWARE_FLOAT 67 68 69 /* Skia has lots of debug-only code. Often this is just null checks or other 70 parameter checking, but sometimes it can be quite intrusive (e.g. check that 71 each 32bit pixel is in premultiplied form). This code can be very useful 72 during development, but will slow things down in a shipping product. 73 74 By default, these mutually exclusive flags are defined in SkPreConfig.h, 75 based on the presence or absence of NDEBUG, but that decision can be changed 76 here. 77 */ 78 //#define SK_DEBUG 79 //#define SK_RELEASE 80 81 /* Skia has certain debug-only code that is extremely intensive even for debug 82 builds. This code is useful for diagnosing specific issues, but is not 83 generally applicable, therefore it must be explicitly enabled to avoid 84 the performance impact. By default these flags are undefined, but can be 85 enabled by uncommenting them below. 86 */ 87 //#define SK_DEBUG_GLYPH_CACHE 88 //#define SK_DEBUG_PATH 89 90 /* To assist debugging, Skia provides an instance counting utility in 91 include/core/SkInstCount.h. This flag turns on and off that utility to 92 allow instance count tracking in either debug or release builds. By 93 default it is enabled in debug but disabled in release. 94 */ 95 //#define SK_ENABLE_INST_COUNT 1 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 /* Most compilers use the same bit endianness for bit flags in a byte as the 116 system byte endianness, and this is the default. If for some reason this 117 needs to be overridden, specify which of the mutually exclusive flags to 118 use. For example, some atom processors in certain configurations have big 119 endian byte order but little endian bit orders. 120 */ 121 //#define SK_UINT8_BITFIELD_BENDIAN 122 //#define SK_UINT8_BITFIELD_LENDIAN 123 124 125 /* Some compilers don't support long long for 64bit integers. If yours does 126 not, define this to the appropriate type. 127 */ 128 #define SkLONGLONG int64_t 129 130 131 /* To write debug messages to a console, skia will call SkDebugf(...) following 132 printf conventions (e.g. const char* format, ...). If you want to redirect 133 this to something other than printf, define yours here 134 */ 135 //#define SkDebugf(...) MyFunction(__VA_ARGS__) 136 137 /* 138 * To specify a different default font cache limit, define this. If this is 139 * undefined, skia will use a built-in value. 140 */ 141 #define SK_DEFAULT_FONT_CACHE_LIMIT (768 * 1024) 142 143 /* If defined, use CoreText instead of ATSUI on OS X. 144 */ 145 //#define SK_USE_MAC_CORE_TEXT 146 147 148 /* If zlib is available and you want to support the flate compression 149 algorithm (used in PDF generation), define SK_ZLIB_INCLUDE to be the 150 include path. Alternatively, define SK_SYSTEM_ZLIB to use the system zlib 151 library specified as "#include <zlib.h>". 152 */ 153 //#define SK_ZLIB_INCLUDE <zlib.h> 154 //#define SK_SYSTEM_ZLIB 155 156 /* Define this to allow PDF scalars above 32k. The PDF/A spec doesn't allow 157 them, but modern PDF interpreters should handle them just fine. 158 */ 159 //#define SK_ALLOW_LARGE_PDF_SCALARS 160 161 /* Define this to provide font subsetter in PDF generation. 162 */ 163 //#define SK_SFNTLY_SUBSETTER "sfntly/subsetter/font_subsetter.h" 164 165 /* Define this to remove dimension checks on bitmaps. Not all blits will be 166 correct yet, so this is mostly for debugging the implementation. 167 */ 168 //#define SK_ALLOW_OVER_32K_BITMAPS 169 170 /** 171 * To revert to int-only srcrect behavior in drawBitmapRect(ToRect), 172 * define this symbol. 173 */ 174 //#define SK_SUPPORT_INT_SRCRECT_DRAWBITMAPRECT 175 176 /* Define this to set the upper limit for text to support LCD. Values that 177 are very large increase the cost in the font cache and draw slower, without 178 improving readability. If this is undefined, Skia will use its default 179 value (e.g. 48) 180 */ 181 //#define SK_MAX_SIZE_FOR_LCDTEXT 48 182 183 /* If SK_DEBUG is defined, then you can optionally define SK_SUPPORT_UNITTEST 184 which will run additional self-tests at startup. These can take a long time, 185 so this flag is optional. 186 */ 187 #ifdef SK_DEBUG 188 //#define SK_SUPPORT_UNITTEST 189 #endif 190 191 /* If your system embeds skia and has complex event logging, define this 192 symbol to name a file that maps the following macros to your system's 193 equivalents: 194 SK_TRACE_EVENT0(event) 195 SK_TRACE_EVENT1(event, name1, value1) 196 SK_TRACE_EVENT2(event, name1, value1, name2, value2) 197 src/utils/SkDebugTrace.h has a trivial implementation that writes to 198 the debug output stream. If SK_USER_TRACE_INCLUDE_FILE is not defined, 199 SkTrace.h will define the above three macros to do nothing. 200 */ 201 //#undef SK_USER_TRACE_INCLUDE_FILE 202 203 /* Change the ordering to work in X windows. 204 */ 205 #ifdef SK_SAMPLES_FOR_X 206 #define SK_R32_SHIFT 16 207 #define SK_G32_SHIFT 8 208 #define SK_B32_SHIFT 0 209 #define SK_A32_SHIFT 24 210 #endif 211 212 213 /* Determines whether to build code that supports the GPU backend. Some classes 214 that are not GPU-specific, such as SkShader subclasses, have optional code 215 that is used allows them to interact with the GPU backend. If you'd like to 216 omit this code set SK_SUPPORT_GPU to 0. This also allows you to omit the gpu 217 directories from your include search path when you're not building the GPU 218 backend. Defaults to 1 (build the GPU code). 219 */ 220 //#define SK_SUPPORT_GPU 1 221 222 #endif 223
