27f74aab32
Sometimes, when ScriptShape is presented with a surrogate pair which does not map to a glyph, it returns two space glyphs instead of .notdef (0). Detect this class of issues and handle appropriately. git-svn-id: http://skia.googlecode.com/svn/trunk@11660 2bbb7eff-a529-9590-31e7-b0007b416f81
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/*
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* Copyright 2011 Google Inc.
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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 SkHRESULT_DEFINED
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#define SkHRESULT_DEFINED
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#include "SkTypes.h"
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void SkTraceHR(const char* file, unsigned long line,
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HRESULT hr, const char* msg);
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#ifdef SK_DEBUG
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#define SK_TRACEHR(_hr, _msg) SkTraceHR(__FILE__, __LINE__, _hr, _msg)
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#else
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#define SK_TRACEHR(_hr, _msg) _hr
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#endif
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#define HR_GENERAL(_ex, _msg, _ret) {\
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HRESULT _hr = _ex;\
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if (FAILED(_hr)) {\
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SK_TRACEHR(_hr, _msg);\
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return _ret;\
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}\
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}
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//@{
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/**
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These macros are for reporting HRESULT errors.
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The expression will be evaluated.
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If the resulting HRESULT SUCCEEDED then execution will continue normally.
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If the HRESULT FAILED then the macro will return from the current function.
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In variants ending with 'M' the given message will be traced when FAILED.
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The HR variants will return the HRESULT when FAILED.
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The HRB variants will return false when FAILED.
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The HRN variants will return NULL when FAILED.
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The HRV variants will simply return when FAILED.
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The HRZ variants will return 0 when FAILED.
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*/
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#define HR(ex) HR_GENERAL(ex, NULL, _hr)
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#define HRM(ex, msg) HR_GENERAL(ex, msg, _hr)
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#define HRB(ex) HR_GENERAL(ex, NULL, false)
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#define HRBM(ex, msg) HR_GENERAL(ex, msg, false)
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#define HRN(ex) HR_GENERAL(ex, NULL, NULL)
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#define HRNM(ex, msg) HR_GENERAL(ex, msg, NULL)
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#define HRV(ex) HR_GENERAL(ex, NULL, )
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#define HRVM(ex, msg) HR_GENERAL(ex, msg, )
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#define HRZ(ex) HR_GENERAL(ex, NULL, 0)
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#define HRZM(ex, msg) HR_GENERAL(ex, msg, 0)
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//@}
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#endif
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