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 // When built as part of the system image we can enable certian non-NDK compliant 45 // optimizations. 46 #define SK_BUILD_FOR_ANDROID_FRAMEWORK 47 #define SK_FONTHOST_DOES_NOT_USE_FONTMGR 48 #define SK_SUPPORT_GPU 1 49 50 // temporary define until we can update the callers to the new convention 51 #define SK_SUPPORT_LEGACY_PIXELREF_CONSTRUCTOR 52 53 // Android Text Tuning 54 #define SK_GAMMA_APPLY_TO_A8 55 #define SK_GAMMA_EXPONENT 1.4 56 #define SK_GAMMA_CONTRAST 0.0 57 58 // Optimizations for chromium (m30) 59 #define GR_GL_CUSTOM_SETUP_HEADER "gl/GrGLConfig_chrome.h" 60 #define IGNORE_ROT_AA_RECT_OPT 61 62 // Needed for chromium (m33) 63 #define SK_DISABLE_OFFSETIMAGEFILTER_OPTIMIZATION 64 #define SK_IGNORE_BLURRED_RRECT_OPT 65 #define SK_IGNORE_QUAD_RR_CORNERS_OPT 66 67 // Disable this check because it is too strict for some chromium-specific 68 // subclasses of SkPixelRef. See bug: crbug.com/171776. 69 #define SK_DISABLE_PIXELREF_LOCKCOUNT_BALANCE_CHECK 70 71 // do this build check for other tools that still read this header 72 #ifdef ANDROID 73 #include <utils/misc.h> 74 #endif 75 76 #define SK_USE_POSIX_THREADS 77 78 /* Scalars (the fractional value type in skia) can be implemented either as 79 floats or 16.16 integers (fixed). Exactly one of these two symbols must be 80 defined. 81 */ 82 #define SK_SCALAR_IS_FLOAT 83 #undef SK_SCALAR_IS_FIXED 84 85 86 /* For some performance-critical scalar operations, skia will optionally work 87 around the standard float operators if it knows that the CPU does not have 88 native support for floats. If your environment uses software floating point, 89 define this flag. 90 */ 91 //#define SK_SOFTWARE_FLOAT 92 93 94 /* Skia has lots of debug-only code. Often this is just null checks or other 95 parameter checking, but sometimes it can be quite intrusive (e.g. check that 96 each 32bit pixel is in premultiplied form). This code can be very useful 97 during development, but will slow things down in a shipping product. 98 99 By default, these mutually exclusive flags are defined in SkPreConfig.h, 100 based on the presence or absence of NDEBUG, but that decision can be changed 101 here. 102 */ 103 //#define SK_DEBUG 104 //#define SK_RELEASE 105 106 /* Skia has certain debug-only code that is extremely intensive even for debug 107 builds. This code is useful for diagnosing specific issues, but is not 108 generally applicable, therefore it must be explicitly enabled to avoid 109 the performance impact. By default these flags are undefined, but can be 110 enabled by uncommenting them below. 111 */ 112 //#define SK_DEBUG_GLYPH_CACHE 113 //#define SK_DEBUG_PATH 114 115 /* To assist debugging, Skia provides an instance counting utility in 116 include/core/SkInstCount.h. This flag turns on and off that utility to 117 allow instance count tracking in either debug or release builds. By 118 default it is enabled in debug but disabled in release. 119 */ 120 //#define SK_ENABLE_INST_COUNT 1 121 122 /* If, in debugging mode, Skia needs to stop (presumably to invoke a debugger) 123 it will call SK_CRASH(). If this is not defined it, it is defined in 124 SkPostConfig.h to write to an illegal address 125 */ 126 //#define SK_CRASH() *(int *)(uintptr_t)0 = 0 127 128 129 /* preconfig will have attempted to determine the endianness of the system, 130 but you can change these mutually exclusive flags here. 131 */ 132 #if __BYTE_ORDER == __BIG_ENDIAN 133 #define SK_CPU_BENDIAN 134 #undef SK_CPU_LENDIAN 135 #else 136 #define SK_CPU_LENDIAN 137 #undef SK_CPU_BENDIAN 138 #endif 139 140 /* Most compilers use the same bit endianness for bit flags in a byte as the 141 system byte endianness, and this is the default. If for some reason this 142 needs to be overridden, specify which of the mutually exclusive flags to 143 use. For example, some atom processors in certain configurations have big 144 endian byte order but little endian bit orders. 145 */ 146 //#define SK_UINT8_BITFIELD_BENDIAN 147 //#define SK_UINT8_BITFIELD_LENDIAN 148 149 150 /* Some compilers don't support long long for 64bit integers. If yours does 151 not, define this to the appropriate type. 152 */ 153 #define SkLONGLONG int64_t 154 155 156 /* To write debug messages to a console, skia will call SkDebugf(...) following 157 printf conventions (e.g. const char* format, ...). If you want to redirect 158 this to something other than printf, define yours here 159 */ 160 //#define SkDebugf(...) MyFunction(__VA_ARGS__) 161 162 /* 163 * To specify a different default font cache limit, define this. If this is 164 * undefined, skia will use a built-in value. 165 */ 166 #define SK_DEFAULT_FONT_CACHE_LIMIT (768 * 1024) 167 168 /* 169 * To specify the default size of the image cache, undefine this and set it to 170 * the desired value (in bytes). SkGraphics.h as a runtime API to set this 171 * value as well. If this is undefined, a built-in value will be used. 172 */ 173 //#define SK_DEFAULT_IMAGE_CACHE_LIMIT (1024 * 1024) 174 175 /* If zlib is available and you want to support the flate compression 176 algorithm (used in PDF generation), define SK_ZLIB_INCLUDE to be the 177 include path. Alternatively, define SK_SYSTEM_ZLIB to use the system zlib 178 library specified as "#include <zlib.h>". 179 */ 180 //#define SK_ZLIB_INCLUDE <zlib.h> 181 //#define SK_SYSTEM_ZLIB 182 183 /* Define this to allow PDF scalars above 32k. The PDF/A spec doesn't allow 184 them, but modern PDF interpreters should handle them just fine. 185 */ 186 //#define SK_ALLOW_LARGE_PDF_SCALARS 187 188 /* Define this to provide font subsetter in PDF generation. 189 */ 190 #define SK_SFNTLY_SUBSETTER "sample/chromium/font_subsetter.h" 191 192 /* Define this to set the upper limit for text to support LCD. Values that 193 are very large increase the cost in the font cache and draw slower, without 194 improving readability. If this is undefined, Skia will use its default 195 value (e.g. 48) 196 */ 197 //#define SK_MAX_SIZE_FOR_LCDTEXT 48 198 199 /* If SK_DEBUG is defined, then you can optionally define SK_SUPPORT_UNITTEST 200 which will run additional self-tests at startup. These can take a long time, 201 so this flag is optional. 202 */ 203 #ifdef SK_DEBUG 204 //#define SK_SUPPORT_UNITTEST 205 #endif 206 207 /* If your system embeds skia and has complex event logging, define this 208 symbol to name a file that maps the following macros to your system's 209 equivalents: 210 SK_TRACE_EVENT0(event) 211 SK_TRACE_EVENT1(event, name1, value1) 212 SK_TRACE_EVENT2(event, name1, value1, name2, value2) 213 src/utils/SkDebugTrace.h has a trivial implementation that writes to 214 the debug output stream. If SK_USER_TRACE_INCLUDE_FILE is not defined, 215 SkTrace.h will define the above three macros to do nothing. 216 */ 217 //#undef SK_USER_TRACE_INCLUDE_FILE 218 219 /* Change the ordering to work in X windows. 220 */ 221 #ifdef SK_SAMPLES_FOR_X 222 #define SK_R32_SHIFT 16 223 #define SK_G32_SHIFT 8 224 #define SK_B32_SHIFT 0 225 #define SK_A32_SHIFT 24 226 #endif 227 228 229 /* Determines whether to build code that supports the GPU backend. Some classes 230 that are not GPU-specific, such as SkShader subclasses, have optional code 231 that is used allows them to interact with the GPU backend. If you'd like to 232 omit this code set SK_SUPPORT_GPU to 0. This also allows you to omit the gpu 233 directories from your include search path when you're not building the GPU 234 backend. Defaults to 1 (build the GPU code). 235 */ 236 //#define SK_SUPPORT_GPU 1 237 238 /* The PDF generation code uses Path Ops to generate inverse fills and complex 239 * clipping paths, but at this time, Path Ops is not release ready yet. So, 240 * the code is hidden behind this #define guard. If you are feeling adventurous 241 * and want the latest and greatest PDF generation code, uncomment the #define. 242 * When Path Ops is release ready, the define guards and this user config 243 * define should be removed entirely. 244 */ 245 //#define SK_PDF_USE_PATHOPS 246 247 #define SK_REF_CNT_MIXIN_INCLUDE "../ports/SkRefCnt_android.h" 248 249 #endif 250