413 lines
13 KiB
C
413 lines
13 KiB
C
/*
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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 SkPostConfig_DEFINED
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#define SkPostConfig_DEFINED
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#if defined(SK_BUILD_FOR_WIN32) || defined(SK_BUILD_FOR_WINCE)
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# define SK_BUILD_FOR_WIN
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#endif
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#if defined(SK_DEBUG) && defined(SK_RELEASE)
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# error "cannot define both SK_DEBUG and SK_RELEASE"
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#elif !defined(SK_DEBUG) && !defined(SK_RELEASE)
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# error "must define either SK_DEBUG or SK_RELEASE"
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#endif
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#if defined(SK_SUPPORT_UNITTEST) && !defined(SK_DEBUG)
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# error "can't have unittests without debug"
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#endif
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/**
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* Matrix calculations may be float or double.
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* The default is double, as that is faster given our impl uses doubles
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* for intermediate calculations.
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*/
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#if defined(SK_MSCALAR_IS_DOUBLE) && defined(SK_MSCALAR_IS_FLOAT)
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# error "cannot define both SK_MSCALAR_IS_DOUBLE and SK_MSCALAR_IS_FLOAT"
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#elif !defined(SK_MSCALAR_IS_DOUBLE) && !defined(SK_MSCALAR_IS_FLOAT)
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# define SK_MSCALAR_IS_DOUBLE
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#endif
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#if defined(SK_CPU_LENDIAN) && defined(SK_CPU_BENDIAN)
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# error "cannot define both SK_CPU_LENDIAN and SK_CPU_BENDIAN"
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#elif !defined(SK_CPU_LENDIAN) && !defined(SK_CPU_BENDIAN)
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# error "must define either SK_CPU_LENDIAN or SK_CPU_BENDIAN"
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#endif
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/**
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* Ensure the port has defined all of SK_X32_SHIFT, or none of them.
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*/
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#ifdef SK_A32_SHIFT
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# if !defined(SK_R32_SHIFT) || !defined(SK_G32_SHIFT) || !defined(SK_B32_SHIFT)
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# error "all or none of the 32bit SHIFT amounts must be defined"
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# endif
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#else
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# if defined(SK_R32_SHIFT) || defined(SK_G32_SHIFT) || defined(SK_B32_SHIFT)
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# error "all or none of the 32bit SHIFT amounts must be defined"
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# endif
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#endif
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#if !defined(SK_HAS_COMPILER_FEATURE)
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# if defined(__has_feature)
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# define SK_HAS_COMPILER_FEATURE(x) __has_feature(x)
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# else
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# define SK_HAS_COMPILER_FEATURE(x) 0
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# endif
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#endif
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#if !defined(SK_ATTRIBUTE)
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# if defined(__clang__) || defined(__GNUC__)
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# define SK_ATTRIBUTE(attr) __attribute__((attr))
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# else
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# define SK_ATTRIBUTE(attr)
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# endif
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#endif
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// As usual, there are two ways to increase alignment... the MSVC way and the everyone-else way.
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#ifndef SK_STRUCT_ALIGN
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#ifdef _MSC_VER
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#define SK_STRUCT_ALIGN(N) __declspec(align(N))
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#else
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#define SK_STRUCT_ALIGN(N) __attribute__((aligned(N)))
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#endif
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#endif
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#if !defined(SK_SUPPORT_GPU)
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# define SK_SUPPORT_GPU 1
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#endif
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/**
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* The clang static analyzer likes to know that when the program is not
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* expected to continue (crash, assertion failure, etc). It will notice that
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* some combination of parameters lead to a function call that does not return.
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* It can then make appropriate assumptions about the parameters in code
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* executed only if the non-returning function was *not* called.
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*/
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#if !defined(SkNO_RETURN_HINT)
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# if SK_HAS_COMPILER_FEATURE(attribute_analyzer_noreturn)
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static inline void SkNO_RETURN_HINT() __attribute__((analyzer_noreturn));
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static inline void SkNO_RETURN_HINT() {}
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# else
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# define SkNO_RETURN_HINT() do {} while (false)
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# endif
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#endif
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///////////////////////////////////////////////////////////////////////////////
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#ifndef SkNEW
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# define SkNEW(type_name) (new type_name)
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# define SkNEW_ARGS(type_name, args) (new type_name args)
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# define SkNEW_ARRAY(type_name, count) (new type_name[(count)])
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# define SkNEW_PLACEMENT(buf, type_name) (new (buf) type_name)
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# define SkNEW_PLACEMENT_ARGS(buf, type_name, args) (new (buf) type_name args)
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# define SkDELETE(obj) (delete (obj))
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# define SkDELETE_ARRAY(array) (delete[] (array))
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#endif
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#ifndef SK_CRASH
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# ifdef SK_BUILD_FOR_WIN
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# define SK_CRASH() __debugbreak()
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# else
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# if 1 // set to 0 for infinite loop, which can help connecting gdb
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# define SK_CRASH() do { SkNO_RETURN_HINT(); *(int *)(uintptr_t)0xbbadbeef = 0; } while (false)
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# else
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# define SK_CRASH() do { SkNO_RETURN_HINT(); } while (true)
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# endif
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# endif
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#endif
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///////////////////////////////////////////////////////////////////////////////
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/**
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* SK_ENABLE_INST_COUNT controlls printing how many reference counted objects
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* are still held on exit.
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* Defaults to 1 in DEBUG and 0 in RELEASE.
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*/
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#ifndef SK_ENABLE_INST_COUNT
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// Only enabled for static builds, because instance counting relies on static
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// variables in functions defined in header files.
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# if SK_DEVELOPER && !defined(SKIA_DLL)
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# define SK_ENABLE_INST_COUNT 1
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# else
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# define SK_ENABLE_INST_COUNT 0
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# endif
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#endif
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///////////////////////////////////////////////////////////////////////////////
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#ifdef SK_BUILD_FOR_WIN
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# ifndef WIN32_LEAN_AND_MEAN
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# define WIN32_LEAN_AND_MEAN
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# define WIN32_IS_MEAN_WAS_LOCALLY_DEFINED
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# endif
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# ifndef NOMINMAX
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# define NOMINMAX
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# define NOMINMAX_WAS_LOCALLY_DEFINED
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# endif
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#
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# include <windows.h>
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#
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# ifdef WIN32_IS_MEAN_WAS_LOCALLY_DEFINED
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# undef WIN32_IS_MEAN_WAS_LOCALLY_DEFINED
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# undef WIN32_LEAN_AND_MEAN
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# endif
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# ifdef NOMINMAX_WAS_LOCALLY_DEFINED
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# undef NOMINMAX_WAS_LOCALLY_DEFINED
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# undef NOMINMAX
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# endif
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#
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# ifndef SK_A32_SHIFT
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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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#
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#endif
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#ifndef SK_ALWAYSBREAK
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# ifdef SK_DEBUG
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# define SK_ALWAYSBREAK(cond) do { \
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if (cond) break; \
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SkNO_RETURN_HINT(); \
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SkDebugf("%s:%d: failed assertion \"%s\"\n", __FILE__, __LINE__, #cond); \
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SK_CRASH(); \
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} while (false)
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# else
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# define SK_ALWAYSBREAK(cond) do { if (cond) break; SK_CRASH(); } while (false)
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# endif
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#endif
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/**
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* We check to see if the SHIFT value has already been defined.
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* if not, we define it ourself to some default values. We default to OpenGL
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* order (in memory: r,g,b,a)
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*/
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#ifndef SK_A32_SHIFT
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# ifdef SK_CPU_BENDIAN
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# define SK_R32_SHIFT 24
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# define SK_G32_SHIFT 16
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# define SK_B32_SHIFT 8
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# define SK_A32_SHIFT 0
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# else
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# define SK_R32_SHIFT 0
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# define SK_G32_SHIFT 8
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# define SK_B32_SHIFT 16
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# define SK_A32_SHIFT 24
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# endif
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#endif
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/**
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* SkColor has well defined shift values, but SkPMColor is configurable. This
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* macro is a convenience that returns true if the shift values are equal while
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* ignoring the machine's endianness.
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*/
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#define SK_COLOR_MATCHES_PMCOLOR_BYTE_ORDER \
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(SK_A32_SHIFT == 24 && SK_R32_SHIFT == 16 && SK_G32_SHIFT == 8 && SK_B32_SHIFT == 0)
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/**
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* SK_PMCOLOR_BYTE_ORDER can be used to query the byte order of SkPMColor at compile time. The
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* relationship between the byte order and shift values depends on machine endianness. If the shift
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* order is R=0, G=8, B=16, A=24 then ((char*)&pmcolor)[0] will produce the R channel on a little
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* endian machine and the A channel on a big endian machine. Thus, given those shifts values,
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* SK_PMCOLOR_BYTE_ORDER(R,G,B,A) will be true on a little endian machine and
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* SK_PMCOLOR_BYTE_ORDER(A,B,G,R) will be true on a big endian machine.
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*/
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#ifdef SK_CPU_BENDIAN
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# define SK_PMCOLOR_BYTE_ORDER(C0, C1, C2, C3) \
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(SK_ ## C3 ## 32_SHIFT == 0 && \
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SK_ ## C2 ## 32_SHIFT == 8 && \
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SK_ ## C1 ## 32_SHIFT == 16 && \
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SK_ ## C0 ## 32_SHIFT == 24)
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#else
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# define SK_PMCOLOR_BYTE_ORDER(C0, C1, C2, C3) \
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(SK_ ## C0 ## 32_SHIFT == 0 && \
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SK_ ## C1 ## 32_SHIFT == 8 && \
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SK_ ## C2 ## 32_SHIFT == 16 && \
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SK_ ## C3 ## 32_SHIFT == 24)
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#endif
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//////////////////////////////////////////////////////////////////////
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// TODO: rebaseline as needed so we can remove this flag entirely.
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// - all platforms have int64_t now
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// - we have slightly different fixed math results because of this check
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// since we don't define this for linux/android
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#if defined(SK_BUILD_FOR_WIN32) || defined(SK_BUILD_FOR_MAC)
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# ifndef SkLONGLONG
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# define SkLONGLONG int64_t
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# endif
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#endif
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//////////////////////////////////////////////////////////////////////////////////////////////
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#ifndef SK_BUILD_FOR_WINCE
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# include <string.h>
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# include <stdlib.h>
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#else
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# define _CMNINTRIN_DECLARE_ONLY
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# include "cmnintrin.h"
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#endif
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#if defined SK_DEBUG && defined SK_BUILD_FOR_WIN32
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# ifdef free
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# undef free
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# endif
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# include <crtdbg.h>
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# undef free
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#
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# ifdef SK_DEBUGx
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# if defined(SK_SIMULATE_FAILED_MALLOC) && defined(__cplusplus)
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void * operator new(
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size_t cb,
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int nBlockUse,
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const char * szFileName,
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int nLine,
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int foo
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);
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void * operator new[](
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size_t cb,
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int nBlockUse,
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const char * szFileName,
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int nLine,
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int foo
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);
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void operator delete(
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void *pUserData,
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int, const char*, int, int
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);
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void operator delete(
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void *pUserData
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);
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void operator delete[]( void * p );
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# define DEBUG_CLIENTBLOCK new( _CLIENT_BLOCK, __FILE__, __LINE__, 0)
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# else
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# define DEBUG_CLIENTBLOCK new( _CLIENT_BLOCK, __FILE__, __LINE__)
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# endif
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# define new DEBUG_CLIENTBLOCK
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# else
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# define DEBUG_CLIENTBLOCK
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# endif
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#endif
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//////////////////////////////////////////////////////////////////////
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#ifndef SK_OVERRIDE
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# if defined(_MSC_VER)
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# define SK_OVERRIDE override
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# elif defined(__clang__)
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// Using __attribute__((override)) on clang does not appear to always work.
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// Clang defaults to C++03 and warns about using override. Squelch that. Intentionally no
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// push/pop here so all users of SK_OVERRIDE ignore the warning too. This is like passing
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// -Wno-c++11-extensions, except that GCC won't die (because it won't see this pragma).
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# pragma clang diagnostic ignored "-Wc++11-extensions"
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#
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# if __has_feature(cxx_override_control)
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# define SK_OVERRIDE override
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# elif defined(__has_extension) && __has_extension(cxx_override_control)
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# define SK_OVERRIDE override
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# endif
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// if GCC >= 4.7
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# elif defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7))
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# define SK_OVERRIDE override
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# endif
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# ifndef SK_OVERRIDE
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# define SK_OVERRIDE
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# endif
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#endif
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//////////////////////////////////////////////////////////////////////
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#if !defined(SK_UNUSED)
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# define SK_UNUSED SK_ATTRIBUTE(unused)
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#endif
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#if !defined(SK_ATTR_DEPRECATED)
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// FIXME: we ignore msg for now...
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# define SK_ATTR_DEPRECATED(msg) SK_ATTRIBUTE(deprecated)
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#endif
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#if !defined(SK_ATTR_EXTERNALLY_DEPRECATED)
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# if !defined(SK_INTERNAL)
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# define SK_ATTR_EXTERNALLY_DEPRECATED(msg) SK_ATTR_DEPRECATED(msg)
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# else
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# define SK_ATTR_EXTERNALLY_DEPRECATED(msg)
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# endif
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#endif
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/**
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* If your judgment is better than the compiler's (i.e. you've profiled it),
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* you can use SK_ALWAYS_INLINE to force inlining. E.g.
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* inline void someMethod() { ... } // may not be inlined
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* SK_ALWAYS_INLINE void someMethod() { ... } // should always be inlined
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*/
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#if !defined(SK_ALWAYS_INLINE)
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# if defined(SK_BUILD_FOR_WIN)
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# define SK_ALWAYS_INLINE __forceinline
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# else
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# define SK_ALWAYS_INLINE SK_ATTRIBUTE(always_inline) inline
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# endif
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#endif
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//////////////////////////////////////////////////////////////////////
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#if defined(__clang__) || defined(__GNUC__)
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# define SK_PREFETCH(ptr) __builtin_prefetch(ptr)
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# define SK_WRITE_PREFETCH(ptr) __builtin_prefetch(ptr, 1)
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#else
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# define SK_PREFETCH(ptr)
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# define SK_WRITE_PREFETCH(ptr)
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#endif
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//////////////////////////////////////////////////////////////////////
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#ifndef SK_PRINTF_LIKE
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# if defined(__clang__) || defined(__GNUC__)
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# define SK_PRINTF_LIKE(A, B) __attribute__((format(printf, (A), (B))))
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# else
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# define SK_PRINTF_LIKE(A, B)
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# endif
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#endif
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//////////////////////////////////////////////////////////////////////
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#ifndef SK_SIZE_T_SPECIFIER
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# if defined(_MSC_VER)
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# define SK_SIZE_T_SPECIFIER "%Iu"
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# else
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# define SK_SIZE_T_SPECIFIER "%zu"
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# endif
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#endif
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//////////////////////////////////////////////////////////////////////
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#ifndef SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
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# define SK_ALLOW_STATIC_GLOBAL_INITIALIZERS 1
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#endif
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//////////////////////////////////////////////////////////////////////
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#ifndef SK_EGL
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# if defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_NACL)
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# define SK_EGL 1
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# else
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# define SK_EGL 0
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# endif
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#endif
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//////////////////////////////////////////////////////////////////////
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#if defined(SK_GAMMA_EXPONENT) && defined(SK_GAMMA_SRGB)
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# error "cannot define both SK_GAMMA_EXPONENT and SK_GAMMA_SRGB"
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#elif defined(SK_GAMMA_SRGB)
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# define SK_GAMMA_EXPONENT (0.0f)
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#elif !defined(SK_GAMMA_EXPONENT)
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# define SK_GAMMA_EXPONENT (2.2f)
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#endif
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#endif // SkPostConfig_DEFINED
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