272 lines
9.3 KiB
C
272 lines
9.3 KiB
C
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/*
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* Copyright 2006 The PDFium Authors
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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 SKIA_CONFIG_SKUSERCONFIG_H_
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#define SKIA_CONFIG_SKUSERCONFIG_H_
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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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/* 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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/* Skia has certain debug-only code that is extremely intensive even for debug
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builds. This code is useful for diagnosing specific issues, but is not
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generally applicable, therefore it must be explicitly enabled to avoid
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the performance impact. By default these flags are undefined, but can be
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enabled by uncommenting them below.
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*/
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// #define SK_DEBUG_GLYPH_CACHE
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// #define SK_DEBUG_PATH
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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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/* 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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/*
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* To specify the default size of the image cache, undefine this and set it to
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* the desired value (in bytes). SkGraphics.h as a runtime API to set this
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* value as well. If this is undefined, a built-in value will be used.
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*/
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// #define SK_DEFAULT_IMAGE_CACHE_LIMIT (1024 * 1024)
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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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/* 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 Ganesh 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 to interact with this GPU backend. If you'd like to
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include this code, include -DSK_GANESH in your cflags or uncomment below.
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Defaults to not set (No Ganesh GPU backend).
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This define affects the ABI of Skia, so make sure it matches the client which uses
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the compiled version of Skia.
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*/
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// #define SK_GANESH
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/* Skia makes use of histogram logging macros to trace the frequency of
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* events. By default, Skia provides no-op versions of these macros.
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* Skia consumers can provide their own definitions of these macros to
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* integrate with their histogram collection backend.
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*/
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// #define SK_HISTOGRAM_BOOLEAN(name, value)
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// #define SK_HISTOGRAM_ENUMERATION(name, value, boundary_value)
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#include "third_party/base/component_export.h"
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// ===== Begin Chrome-specific definitions =====
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#define SK_MSCALAR_IS_FLOAT
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#undef SK_MSCALAR_IS_DOUBLE
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#define GR_MAX_OFFSCREEN_AA_DIM 512
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// Handle exporting using base/component_export.h
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#define SK_API COMPONENT_EXPORT(SKIA)
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// Log the file and line number for assertions.
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#if defined(SK_BUILD_FOR_WIN) && !defined(__clang__)
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// String formatting with this toolchain not supported.
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#define SkDebugf(...) SkDebugf_FileLineOnly(__FILE__, __LINE__)
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SK_API void SkDebugf_FileLineOnly(const char* file, int line);
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#else
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#define SkDebugf(...) SkDebugf_FileLine(__FILE__, __LINE__, __VA_ARGS__)
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SK_API void SkDebugf_FileLine(const char* file,
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int line,
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const char* format,
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...);
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#endif
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#if !defined(ANDROID) // On Android, we use the skia default settings.
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#define SK_A32_SHIFT 24
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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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#endif
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#if defined(SK_BUILD_FOR_WIN32)
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#define SK_BUILD_FOR_WIN
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// Skia uses this deprecated bzero function to fill zeros into a string.
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#define bzero(str, len) memset(str, 0, len)
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#elif defined(SK_BUILD_FOR_MAC)
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#define SK_CPU_LENDIAN
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#undef SK_CPU_BENDIAN
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#elif defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_ANDROID)
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// Prefer FreeType's emboldening algorithm to Skia's
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// TODO: skia used to just use hairline, but has improved since then, so
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// we should revisit this choice...
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#define SK_USE_FREETYPE_EMBOLDEN
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#if defined(SK_BUILD_FOR_UNIX) && defined(SK_CPU_BENDIAN)
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// Above we set the order for ARGB channels in registers. I suspect that, on
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// big endian machines, you can keep this the same and everything will work.
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// The in-memory order will be different, of course, but as long as everything
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// is reading memory as words rather than bytes, it will all work. However, if
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// you find that colours are messed up I thought that I would leave a helpful
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// locator for you. Also see the comments in
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// base/gfx/bitmap_platform_device_linux.h
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#error Read the comment at this location
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#endif
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#endif
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// These flags are no longer defined in Skia, but we have them (temporarily)
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// until we update our call-sites (typically these are for API changes).
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//
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// Remove these as we update our sites.
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//
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#ifndef SK_SUPPORT_LEGACY_GETTOPDEVICE
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#define SK_SUPPORT_LEGACY_GETTOPDEVICE
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#endif
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#ifndef SK_SUPPORT_EXOTIC_CLIPOPS
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#define SK_SUPPORT_EXOTIC_CLIPOPS
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#endif
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#ifndef SK_SUPPORT_LEGACY_GETDEVICE
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#define SK_SUPPORT_LEGACY_GETDEVICE
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#endif
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// Workaround for poor anisotropic mipmap quality,
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// pending Skia ripmap support.
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// (https://bugs.chromium.org/p/skia/issues/detail?id=4863)
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#ifndef SK_SUPPORT_LEGACY_ANISOTROPIC_MIPMAP_SCALE
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#define SK_SUPPORT_LEGACY_ANISOTROPIC_MIPMAP_SCALE
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#endif
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#ifndef SK_SUPPORT_LEGACY_REFENCODEDDATA_NOCTX
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#define SK_SUPPORT_LEGACY_REFENCODEDDATA_NOCTX
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#endif
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#ifndef SK_IGNORE_ETC1_SUPPORT
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#define SK_IGNORE_ETC1_SUPPORT
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#endif
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#ifndef SK_IGNORE_GPU_DITHER
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#define SK_IGNORE_GPU_DITHER
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#endif
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#ifndef SK_SUPPORT_LEGACY_EVAL_CUBIC
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#define SK_SUPPORT_LEGACY_EVAL_CUBIC
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#endif
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///////////////////////// Imported from BUILD.gn
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/* In some places Skia can use static initializers for global initialization,
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* or fall back to lazy runtime initialization. Chrome always wants the latter.
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*/
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#define SK_ALLOW_STATIC_GLOBAL_INITIALIZERS 0
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/* This flag forces Skia not to use typographic metrics with GDI.
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*/
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#define SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS
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#define SK_IGNORE_BLURRED_RRECT_OPT
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#define SK_USE_DISCARDABLE_SCALEDIMAGECACHE
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#define SK_WILL_NEVER_DRAW_PERSPECTIVE_TEXT
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#define SK_ATTR_DEPRECATED SK_NOTHING_ARG1
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#define SK_ENABLE_INST_COUNT 0
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#define GR_GL_CUSTOM_SETUP_HEADER "GrGLConfig_chrome.h"
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// Blink layout tests are baselined to Clang optimizing through the UB in
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// SkDivBits.
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#define SK_SUPPORT_LEGACY_DIVBITS_UB
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// mtklein's fiddling with Src / SrcOver. Will rebaseline these only once when
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// done.
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#define SK_SUPPORT_LEGACY_X86_BLITS
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#define SK_DISABLE_TILE_IMAGE_FILTER_OPTIMIZATION
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#if defined(SK_BUILD_FOR_WIN) && !defined(__clang__)
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#define SK_ABORT(format, ...) \
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SkAbort_FileLine(__FILE__, __LINE__, format, ##__VA_ARGS__)
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[[noreturn]] SK_API void SkAbort_FileLine(const char* file,
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int line,
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const char* format,
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...);
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#endif
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// ===== End Chrome-specific definitions =====
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#endif // SKIA_CONFIG_SKUSERCONFIG_H_
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