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 SKIA_CONFIG_SKUSERCONFIG_H_ 11 #define SKIA_CONFIG_SKUSERCONFIG_H_ 12 13 /* SkTypes.h, the root of the public header files, does the following trick: 14 15 #include "include/config/SkUserConfig.h" 16 #include "include/core/SkPostConfig.h" 17 #include "include/core/SkPreConfig.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 /* Skia has lots of debug-only code. Often this is just null checks or other 41 parameter checking, but sometimes it can be quite intrusive (e.g. check that 42 each 32bit pixel is in premultiplied form). This code can be very useful 43 during development, but will slow things down in a shipping product. 44 45 By default, these mutually exclusive flags are defined in SkPreConfig.h, 46 based on the presence or absence of NDEBUG, but that decision can be changed 47 here. 48 */ 49 //#define SK_DEBUG 50 //#define SK_RELEASE 51 52 /* Skia has certain debug-only code that is extremely intensive even for debug 53 builds. This code is useful for diagnosing specific issues, but is not 54 generally applicable, therefore it must be explicitly enabled to avoid 55 the performance impact. By default these flags are undefined, but can be 56 enabled by uncommenting them below. 57 */ 58 //#define SK_DEBUG_GLYPH_CACHE 59 //#define SK_DEBUG_PATH 60 61 /* preconfig will have attempted to determine the endianness of the system, 62 but you can change these mutually exclusive flags here. 63 */ 64 //#define SK_CPU_BENDIAN 65 //#define SK_CPU_LENDIAN 66 67 /* Most compilers use the same bit endianness for bit flags in a byte as the 68 system byte endianness, and this is the default. If for some reason this 69 needs to be overridden, specify which of the mutually exclusive flags to 70 use. For example, some atom processors in certain configurations have big 71 endian byte order but little endian bit orders. 72 */ 73 //#define SK_UINT8_BITFIELD_BENDIAN 74 //#define SK_UINT8_BITFIELD_LENDIAN 75 76 77 /* To write debug messages to a console, skia will call SkDebugf(...) following 78 printf conventions (e.g. const char* format, ...). If you want to redirect 79 this to something other than printf, define yours here 80 */ 81 //#define SkDebugf(...) MyFunction(__VA_ARGS__) 82 83 /* 84 * To specify a different default font cache limit, define this. If this is 85 * undefined, skia will use a built-in value. 86 */ 87 //#define SK_DEFAULT_FONT_CACHE_LIMIT (1024 * 1024) 88 89 /* 90 * To specify the default size of the image cache, undefine this and set it to 91 * the desired value (in bytes). SkGraphics.h as a runtime API to set this 92 * value as well. If this is undefined, a built-in value will be used. 93 */ 94 //#define SK_DEFAULT_IMAGE_CACHE_LIMIT (1024 * 1024) 95 96 /* Define this to set the upper limit for text to support LCD. Values that 97 are very large increase the cost in the font cache and draw slower, without 98 improving readability. If this is undefined, Skia will use its default 99 value (e.g. 48) 100 */ 101 //#define SK_MAX_SIZE_FOR_LCDTEXT 48 102 103 /* Change the kN32_SkColorType ordering to BGRA to work in X windows. 104 */ 105 //#define SK_R32_SHIFT 16 106 107 108 /* Determines whether to build code that supports the GPU backend. Some classes 109 that are not GPU-specific, such as SkShader subclasses, have optional code 110 that is used allows them to interact with the GPU backend. If you'd like to 111 omit this code set SK_SUPPORT_GPU to 0. This also allows you to omit the gpu 112 directories from your include search path when you're not building the GPU 113 backend. Defaults to 1 (build the GPU code). 114 */ 115 //#define SK_SUPPORT_GPU 1 116 117 /* Skia makes use of histogram logging macros to trace the frequency of 118 * events. By default, Skia provides no-op versions of these macros. 119 * Skia consumers can provide their own definitions of these macros to 120 * integrate with their histogram collection backend. 121 */ 122 //#define SK_HISTOGRAM_BOOLEAN(name, value) 123 //#define SK_HISTOGRAM_ENUMERATION(name, value, boundary_value) 124 125 // ===== Begin Chrome-specific definitions ===== 126 127 #ifdef DCHECK_ALWAYS_ON 128 #undef SK_RELEASE 129 #define SK_DEBUG 130 #endif 131 132 /* Define this to provide font subsetter for font subsetting when generating 133 PDF documents. 134 */ 135 // #define SK_PDF_USE_HARFBUZZ_SUBSET 136 137 // Chromium does not use these fonts. This define causes type1 fonts to be 138 // converted to type3 when producing PDFs, and reduces build size. 139 #define SK_PDF_DO_NOT_SUPPORT_TYPE_1_FONTS 140 141 #ifdef SK_DEBUG 142 #define SK_REF_CNT_MIXIN_INCLUDE "skia/config/sk_ref_cnt_ext_debug.h" 143 #else 144 #define SK_REF_CNT_MIXIN_INCLUDE "skia/config/sk_ref_cnt_ext_release.h" 145 #endif 146 147 // Log the file and line number for assertions. 148 #define SkDebugf(...) SkDebugf_FileLine(__FILE__, __LINE__, __VA_ARGS__) 149 SK_API void SkDebugf_FileLine(const char* file, 150 int line, 151 const char* format, 152 ...); 153 154 #if !defined(ANDROID) // On Android, we use the skia default settings. 155 #if defined(SK_CPU_BENDIAN) 156 #define SK_A32_SHIFT 0 157 #define SK_R32_SHIFT 8 158 #define SK_G32_SHIFT 16 159 #define SK_B32_SHIFT 24 160 #else 161 #define SK_A32_SHIFT 24 162 #define SK_R32_SHIFT 16 163 #define SK_G32_SHIFT 8 164 #define SK_B32_SHIFT 0 165 #endif 166 #endif 167 168 #if defined(SK_BUILD_FOR_MAC) 169 170 #define SK_CPU_LENDIAN 171 #undef SK_CPU_BENDIAN 172 173 #elif defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_ANDROID) 174 175 // Prefer FreeType's emboldening algorithm to Skia's 176 // TODO: skia used to just use hairline, but has improved since then, so 177 // we should revisit this choice... 178 #define SK_USE_FREETYPE_EMBOLDEN 179 180 #endif 181 182 // These flags are no longer defined in Skia, but we have them (temporarily) 183 // until we update our call-sites (typically these are for API changes). 184 // 185 // Remove these as we update our sites. 186 187 // Workaround for poor anisotropic mipmap quality, 188 // pending Skia ripmap support. 189 // (https://bugs.chromium.org/p/skia/issues/detail?id=4863) 190 #ifndef SK_SUPPORT_LEGACY_ANISOTROPIC_MIPMAP_SCALE 191 # define SK_SUPPORT_LEGACY_ANISOTROPIC_MIPMAP_SCALE 192 #endif 193 194 // For now, Chrome should only attempt to reduce opList splitting when recording 195 // DDLs 196 #ifndef SK_DISABLE_REDUCE_OPLIST_SPLITTING 197 #define SK_DISABLE_REDUCE_OPLIST_SPLITTING 198 #endif 199 200 // Max. verb count for paths rendered by the edge-AA tessellating path renderer. 201 #define GR_AA_TESSELLATOR_MAX_VERB_COUNT 100 202 203 #ifndef SK_SUPPORT_LEGACY_AAA_CHOICE 204 #define SK_SUPPORT_LEGACY_AAA_CHOICE 205 #endif 206 207 // Staging for lowp::bilerp_clamp_8888, and for planned misc. others. 208 #define SK_DISABLE_LOWP_BILERP_CLAMP_CLAMP_STAGE 209 210 ///////////////////////// Imported from BUILD.gn and skia_common.gypi 211 212 /* In some places Skia can use static initializers for global initialization, 213 * or fall back to lazy runtime initialization. Chrome always wants the latter. 214 */ 215 #define SK_ALLOW_STATIC_GLOBAL_INITIALIZERS 0 216 217 /* Restrict formats for Skia font matching to SFNT type fonts. */ 218 #define SK_FONT_CONFIG_INTERFACE_ONLY_ALLOW_SFNT_FONTS 219 220 #define SK_IGNORE_BLURRED_RRECT_OPT 221 #define SK_USE_DISCARDABLE_SCALEDIMAGECACHE 222 223 #define SK_ATTR_DEPRECATED SK_NOTHING_ARG1 224 #define GR_GL_CUSTOM_SETUP_HEADER "GrGLConfig_chrome.h" 225 226 #endif 227