gfx/skia/trunk/include/gpu/GrConfig.h

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

     2 /*
     3  * Copyright 2010 Google Inc.
     4  *
     5  * Use of this source code is governed by a BSD-style license that can be
     6  * found in the LICENSE file.
     7  */
    11 #ifndef GrConfig_DEFINED
    12 #define GrConfig_DEFINED
    14 #include "SkTypes.h"
    16 ///////////////////////////////////////////////////////////////////////////////
    17 // preconfig section:
    18 //
    19 // All the work before including GrUserConfig.h should center around guessing
    20 // what platform we're on, and defining low-level symbols based on that.
    21 //
    22 // A build environment may have already defined symbols, so we first check
    23 // for that
    24 //
    26 // hack to ensure we know what sort of Apple platform we're on
    27 #if defined(__APPLE_CPP__) || defined(__APPLE_CC__)
    28     #include <TargetConditionals.h>
    29 #endif
    31 /**
    32  *  Gr defines are set to 0 or 1, rather than being undefined or defined
    33  */
    35 #if !defined(GR_CACHE_STATS)
    36     #define GR_CACHE_STATS      0
    37 #endif
    39 ///////////////////////////////////////////////////////////////////////////////
    40 ///////////////////////////////////////////////////////////////////////////////
    42 #if defined(SK_BUILD_FOR_WIN32)
    43 // VC8 doesn't support stdint.h, so we define those types here.
    44 typedef signed char int8_t;
    45 typedef unsigned char uint8_t;
    46 typedef short int16_t;
    47 typedef unsigned short uint16_t;
    48 typedef int int32_t;
    49 typedef unsigned uint32_t;
    50 typedef __int64 int64_t;
    51 typedef unsigned __int64 uint64_t;
    52 #else
    53 /*
    54  *  Include stdint.h with defines that trigger declaration of C99 limit/const
    55  *  macros here before anyone else has a chance to include stdint.h without
    56  *  these.
    57  */
    58 #ifndef __STDC_LIMIT_MACROS
    59 #define __STDC_LIMIT_MACROS
    60 #endif
    61 #ifndef __STDC_CONSTANT_MACROS
    62 #define __STDC_CONSTANT_MACROS
    63 #endif
    64 #include <stdint.h>
    65 #endif
    67 /*
    68  *  The "user config" file can be empty, and everything should work. It is
    69  *  meant to store a given platform/client's overrides of our guess-work.
    70  *
    71  *  A alternate user config file can be specified by defining
    72  *  GR_USER_CONFIG_FILE. It should be defined relative to GrConfig.h
    73  *
    74  *  e.g. it can change the BUILD target or supply its own defines for anything
    75  *  else (e.g. GR_DEFAULT_RESOURCE_CACHE_MB_LIMIT)
    76  */
    77 #if !defined(GR_USER_CONFIG_FILE)
    78     #include "GrUserConfig.h"
    79 #else
    80     #include GR_USER_CONFIG_FILE
    81 #endif
    84 ///////////////////////////////////////////////////////////////////////////////
    85 ///////////////////////////////////////////////////////////////////////////////
    86 // postconfig section:
    87 //
    89 // By now we must have a GR_..._BUILD symbol set to 1, and a decision about
    90 // debug -vs- release
    91 //
    93 #define GrPrintf SkDebugf
    95 /**
    96  *  GR_STRING makes a string of X where X is expanded before conversion to a string
    97  *  if X itself contains macros.
    98  */
    99 #define GR_STRING(X) GR_STRING_IMPL(X)
   100 #define GR_STRING_IMPL(X) #X
   102 /**
   103  *  GR_CONCAT concatenates X and Y  where each is expanded before
   104  *  contanenation if either contains macros.
   105  */
   106 #define GR_CONCAT(X,Y) GR_CONCAT_IMPL(X,Y)
   107 #define GR_CONCAT_IMPL(X,Y) X##Y
   109 /**
   110  *  Creates a string of the form "<filename>(<linenumber>) : "
   111  */
   112 #define GR_FILE_AND_LINE_STR __FILE__ "(" GR_STRING(__LINE__) ") : "
   114 /**
   115  *  Compilers have different ways of issuing warnings. This macro
   116  *  attempts to abstract them, but may need to be specialized for your
   117  *  particular compiler.
   118  *  To insert compiler warnings use "#pragma message GR_WARN(<string>)"
   119  */
   120 #if defined(_MSC_VER) && _MSC_VER
   121     #define GR_WARN(MSG) (GR_FILE_AND_LINE_STR "WARNING: " MSG)
   122 #else//__GNUC__ - may need other defines for different compilers
   123     #define GR_WARN(MSG) ("WARNING: " MSG)
   124 #endif
   126 /**
   127  *  GR_ALWAYSBREAK is an unconditional break in all builds.
   128  */
   129 #if !defined(GR_ALWAYSBREAK)
   130     #if     defined(SK_BUILD_FOR_WIN32)
   131         #define GR_ALWAYSBREAK SkNO_RETURN_HINT(); __debugbreak()
   132     #else
   133         // TODO: do other platforms really not have continuable breakpoints?
   134         // sign extend for 64bit architectures to be sure this is
   135         // in the high address range
   136         #define GR_ALWAYSBREAK SkNO_RETURN_HINT(); *((int*)(int64_t)(int32_t)0xbeefcafe) = 0;
   137     #endif
   138 #endif
   140 /**
   141  *  GR_DEBUGBREAK is an unconditional break in debug builds.
   142  */
   143 #if !defined(GR_DEBUGBREAK)
   144     #ifdef SK_DEBUG
   145         #define GR_DEBUGBREAK GR_ALWAYSBREAK
   146     #else
   147         #define GR_DEBUGBREAK
   148     #endif
   149 #endif
   151 /**
   152  *  GR_ALWAYSASSERT is an assertion in all builds.
   153  */
   154 #if !defined(GR_ALWAYSASSERT)
   155     #define GR_ALWAYSASSERT(COND)                                        \
   156         do {                                                             \
   157             if (!(COND)) {                                               \
   158                 GrPrintf("%s %s failed\n", GR_FILE_AND_LINE_STR, #COND); \
   159                 GR_ALWAYSBREAK;                                          \
   160             }                                                            \
   161         } while (false)
   162 #endif
   164 /**
   165  *  GR_DEBUGASSERT is an assertion in debug builds only.
   166  */
   167 #if !defined(GR_DEBUGASSERT)
   168     #ifdef SK_DEBUG
   169         #define GR_DEBUGASSERT(COND) GR_ALWAYSASSERT(COND)
   170     #else
   171         #define GR_DEBUGASSERT(COND)
   172     #endif
   173 #endif
   175 /**
   176  *  Prettier forms of the above macros.
   177  */
   178 #define GrAlwaysAssert(COND) GR_ALWAYSASSERT(COND)
   180 /**
   181  * Crash from unrecoverable condition, optionally with a message. The debug variants only
   182  * crash in a debug build. The message versions print the message regardless of release vs debug.
   183  */
   184 inline void GrCrash() { GrAlwaysAssert(false); }
   185 inline void GrCrash(const char* msg) { GrPrintf(msg); GrAlwaysAssert(false); }
   186 inline void GrDebugCrash() { SkASSERT(false); }
   187 inline void GrDebugCrash(const char* msg) { GrPrintf(msg); SkASSERT(false); }
   189 /**
   190  *  GR_STATIC_ASSERT is a compile time assertion. Depending on the platform
   191  *  it may print the message in the compiler log. Obviously, the condition must
   192  *  be evaluatable at compile time.
   193  */
   194 // VS 2010 and GCC compiled with c++0x or gnu++0x support the new
   195 // static_assert.
   196 #if !defined(GR_STATIC_ASSERT)
   197     #if (defined(_MSC_VER) && _MSC_VER >= 1600) || (defined(__GXX_EXPERIMENTAL_CXX0X__) && __GXX_EXPERIMENTAL_CXX0X__)
   198         #define GR_STATIC_ASSERT(CONDITION) static_assert(CONDITION, "bug")
   199     #else
   200         template <bool> class GR_STATIC_ASSERT_FAILURE;
   201         template <> class GR_STATIC_ASSERT_FAILURE<true> {};
   202         #define GR_STATIC_ASSERT(CONDITION) \
   203             enum {GR_CONCAT(X,__LINE__) = \
   204             sizeof(GR_STATIC_ASSERT_FAILURE<CONDITION>)}
   205     #endif
   206 #endif
   208 /**
   209  * GR_GEOM_BUFFER_LOCK_THRESHOLD gives a threshold (in bytes) for when Gr should
   210  * lock a GrGeometryBuffer to update its contents. It will use lock() if the
   211  * size of the updated region is greater than the threshold. Otherwise it will
   212  * use updateData().
   213  */
   214 #if !defined(GR_GEOM_BUFFER_LOCK_THRESHOLD)
   215     #define GR_GEOM_BUFFER_LOCK_THRESHOLD (1 << 15)
   216 #endif
   218 /**
   219  * GR_DEFAULT_RESOURCE_CACHE_MB_LIMIT gives a threshold (in megabytes) for the
   220  * maximum size of the texture cache in vram. The value is only a default and
   221  * can be overridden at runtime.
   222  */
   223 #if !defined(GR_DEFAULT_RESOURCE_CACHE_MB_LIMIT)
   224     #define GR_DEFAULT_RESOURCE_CACHE_MB_LIMIT 96
   225 #endif
   227 /**
   228  * GR_DEFAULT_RESOURCE_CACHE_COUNT_LIMIT specifies the maximum number of
   229  * textures the texture cache can hold in vram. The value is only a default and
   230  * can be overridden at runtime.
   231  */
   232 #if !defined(GR_DEFAULT_RESOURCE_CACHE_COUNT_LIMIT)
   233     #define GR_DEFAULT_RESOURCE_CACHE_COUNT_LIMIT 2048
   234 #endif
   236 /**
   237  * GR_STROKE_PATH_RENDERING controls whether or not the GrStrokePathRenderer can be selected
   238  * as a path renderer. GrStrokePathRenderer is currently an experimental path renderer.
   239  */
   240 #if !defined(GR_STROKE_PATH_RENDERING)
   241     #define GR_STROKE_PATH_RENDERING                 0
   242 #endif
   244 #endif

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