34dc9a2dae
git-svn-id: http://skia.googlecode.com/svn/trunk@5710 2bbb7eff-a529-9590-31e7-b0007b416f81
195 lines
6.9 KiB
C
195 lines
6.9 KiB
C
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/*
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* Copyright 2006 The Android Open Source Project
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkUserConfig_DEFINED
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#define SkUserConfig_DEFINED
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/* SkTypes.h, the root of the public header files, does the following trick:
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#include "SkPreConfig.h"
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#include "SkUserConfig.h"
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#include "SkPostConfig.h"
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SkPreConfig.h runs first, and it is responsible for initializing certain
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skia defines.
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SkPostConfig.h runs last, and its job is to just check that the final
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defines are consistent (i.e. that we don't have mutually conflicting
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defines).
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SkUserConfig.h (this file) runs in the middle. It gets to change or augment
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the list of flags initially set in preconfig, and then postconfig checks
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that everything still makes sense.
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Below are optional defines that add, subtract, or change default behavior
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in Skia. Your port can locally edit this file to enable/disable flags as
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you choose, or these can be delared on your command line (i.e. -Dfoo).
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By default, this include file will always default to having all of the flags
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commented out, so including it will have no effect.
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*/
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///////////////////////////////////////////////////////////////////////////////
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/* Scalars (the fractional value type in skia) can be implemented either as
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floats or 16.16 integers (fixed). Exactly one of these two symbols must be
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defined.
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*/
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//#define SK_SCALAR_IS_FLOAT
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//#define SK_SCALAR_IS_FIXED
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/* For some performance-critical scalar operations, skia will optionally work
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around the standard float operators if it knows that the CPU does not have
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native support for floats. If your environment uses software floating point,
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define this flag.
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*/
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//#define SK_SOFTWARE_FLOAT
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/* Skia has lots of debug-only code. Often this is just null checks or other
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parameter checking, but sometimes it can be quite intrusive (e.g. check that
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each 32bit pixel is in premultiplied form). This code can be very useful
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during development, but will slow things down in a shipping product.
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By default, these mutually exclusive flags are defined in SkPreConfig.h,
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based on the presence or absence of NDEBUG, but that decision can be changed
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here.
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*/
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//#define SK_DEBUG
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//#define SK_RELEASE
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/* To assist debugging, Skia provides an instance counting utility in
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include/core/SkInstCount.h. This flag turns on and off that utility to
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allow instance count tracking in either debug or release builds. By
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default it is enabled in debug but disabled in release.
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*/
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//#define SK_ENABLE_INST_COUNT
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/* If, in debugging mode, Skia needs to stop (presumably to invoke a debugger)
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it will call SK_CRASH(). If this is not defined it, it is defined in
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SkPostConfig.h to write to an illegal address
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*/
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//#define SK_CRASH() *(int *)(uintptr_t)0 = 0
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/* preconfig will have attempted to determine the endianness of the system,
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but you can change these mutually exclusive flags here.
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*/
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//#define SK_CPU_BENDIAN
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//#define SK_CPU_LENDIAN
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/* Most compilers use the same bit endianness for bit flags in a byte as the
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system byte endianness, and this is the default. If for some reason this
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needs to be overridden, specify which of the mutually exclusive flags to
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use. For example, some atom processors in certain configurations have big
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endian byte order but little endian bit orders.
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*/
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//#define SK_UINT8_BITFIELD_BENDIAN
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//#define SK_UINT8_BITFIELD_LENDIAN
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/* Some compilers don't support long long for 64bit integers. If yours does
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not, define this to the appropriate type.
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*/
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//#define SkLONGLONG int64_t
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/* To write debug messages to a console, skia will call SkDebugf(...) following
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printf conventions (e.g. const char* format, ...). If you want to redirect
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this to something other than printf, define yours here
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*/
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//#define SkDebugf(...) MyFunction(__VA_ARGS__)
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/*
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* To specify a different default font cache limit, define this. If this is
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* undefined, skia will use a built-in value.
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*/
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//#define SK_DEFAULT_FONT_CACHE_LIMIT (1024 * 1024)
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/* If defined, use CoreText instead of ATSUI on OS X.
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*/
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//#define SK_USE_MAC_CORE_TEXT
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/* If zlib is available and you want to support the flate compression
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algorithm (used in PDF generation), define SK_ZLIB_INCLUDE to be the
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include path. Alternatively, define SK_SYSTEM_ZLIB to use the system zlib
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library specified as "#include <zlib.h>".
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*/
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//#define SK_ZLIB_INCLUDE <zlib.h>
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//#define SK_SYSTEM_ZLIB
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/* Define this to allow PDF scalars above 32k. The PDF/A spec doesn't allow
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them, but modern PDF interpreters should handle them just fine.
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*/
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//#define SK_ALLOW_LARGE_PDF_SCALARS
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/* Define this to provide font subsetter in PDF generation.
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*/
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//#define SK_SFNTLY_SUBSETTER "sfntly/subsetter/font_subsetter.h"
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/* Define this to remove dimension checks on bitmaps. Not all blits will be
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correct yet, so this is mostly for debugging the implementation.
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*/
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#define SK_ALLOW_OVER_32K_BITMAPS
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/**
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* To revert to int-only srcrect behavior in drawBitmapRect(ToRect),
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* define this symbol.
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*/
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//#define SK_SUPPORT_INT_SRCRECT_DRAWBITMAPRECT
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/* Define this to set the upper limit for text to support LCD. Values that
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are very large increase the cost in the font cache and draw slower, without
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improving readability. If this is undefined, Skia will use its default
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value (e.g. 48)
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*/
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//#define SK_MAX_SIZE_FOR_LCDTEXT 48
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/* If SK_DEBUG is defined, then you can optionally define SK_SUPPORT_UNITTEST
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which will run additional self-tests at startup. These can take a long time,
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so this flag is optional.
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*/
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#ifdef SK_DEBUG
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//#define SK_SUPPORT_UNITTEST
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#endif
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/* If your system embeds skia and has complex event logging, define this
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symbol to name a file that maps the following macros to your system's
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equivalents:
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SK_TRACE_EVENT0(event)
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SK_TRACE_EVENT1(event, name1, value1)
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SK_TRACE_EVENT2(event, name1, value1, name2, value2)
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src/utils/SkDebugTrace.h has a trivial implementation that writes to
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the debug output stream. If SK_USER_TRACE_INCLUDE_FILE is not defined,
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SkTrace.h will define the above three macros to do nothing.
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*/
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//#undef SK_USER_TRACE_INCLUDE_FILE
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/* Change the ordering to work in X windows.
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*/
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#ifdef SK_SAMPLES_FOR_X
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#define SK_R32_SHIFT 16
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#define SK_G32_SHIFT 8
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#define SK_B32_SHIFT 0
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#define SK_A32_SHIFT 24
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#endif
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/* Determines whether to build code that supports the GPU backend. Some classes
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that are not GPU-specific, such as SkShader subclasses, have optional code
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that is used allows them to interact with the GPU backend. If you'd like to
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omit this code set SK_SUPPORT_GPU to 0. This also allows you to omit the gpu
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directories from your include search path when you're not building the GPU
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backend. Defaults to 1 (build the GPU code).
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*/
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//#define SK_SUPPORT_GPU 1
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#endif
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