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author | Liang Qi <liang.qi@theqtcompany.com> | 2015-04-22 09:04:29 +0200 |
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committer | Liang Qi <liang.qi@theqtcompany.com> | 2015-04-22 09:25:54 +0200 |
commit | aed5a7168354c6ae47687d20b4bd3f0adcc14f8e (patch) | |
tree | d2060479a7c12fdba8c1955e5d363754feffabb8 /src/3rdparty/angle/src/compiler/translator/EmulatePrecision.h | |
parent | d3d10cf23d61f4a011f1a7e9abdee1a92717e80f (diff) | |
parent | 628fa13ea4d6ff0e2e2ee76c9adfc78676de3c59 (diff) |
Merge remote-tracking branch 'origin/5.5' into dev
Conflicts:
src/corelib/statemachine/qstatemachine.cpp
src/corelib/statemachine/qstatemachine_p.h
src/gui/painting/qdrawhelper.cpp
src/plugins/platforms/xcb/qxcbnativeinterface.cpp
src/plugins/platforms/xcb/qxcbwindow.cpp
src/plugins/platforms/xcb/qxcbwindow.h
src/testlib/qtestblacklist.cpp
src/tools/qdoc/node.cpp
src/tools/qdoc/node.h
tests/auto/gui/painting/qcolor/tst_qcolor.cpp
Change-Id: I6c78b7b162001712d5774293f501b06b4ff32684
Diffstat (limited to 'src/3rdparty/angle/src/compiler/translator/EmulatePrecision.h')
-rw-r--r-- | src/3rdparty/angle/src/compiler/translator/EmulatePrecision.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/EmulatePrecision.h b/src/3rdparty/angle/src/compiler/translator/EmulatePrecision.h new file mode 100644 index 0000000000..f1f560aa85 --- /dev/null +++ b/src/3rdparty/angle/src/compiler/translator/EmulatePrecision.h @@ -0,0 +1,74 @@ +// +// Copyright (c) 2002-2014 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// + +#ifndef COMPILER_TRANSLATOR_EMULATE_PRECISION_H_ +#define COMPILER_TRANSLATOR_EMULATE_PRECISION_H_ + +#include "common/angleutils.h" +#include "compiler/translator/InfoSink.h" +#include "compiler/translator/IntermNode.h" +#include "GLSLANG/ShaderLang.h" + +// This class gathers all compound assignments from the AST and can then write +// the functions required for their precision emulation. This way there is no +// need to write a huge number of variations of the emulated compound assignment +// to every translated shader with emulation enabled. + +class EmulatePrecision : public TIntermTraverser +{ + public: + EmulatePrecision(); + + virtual void visitSymbol(TIntermSymbol *node); + virtual bool visitBinary(Visit visit, TIntermBinary *node); + virtual bool visitUnary(Visit visit, TIntermUnary *node); + virtual bool visitAggregate(Visit visit, TIntermAggregate *node); + + void writeEmulationHelpers(TInfoSinkBase& sink, ShShaderOutput outputLanguage); + + private: + struct TypePair + { + TypePair(const char *l, const char *r) + : lType(l), rType(r) { } + + const char *lType; + const char *rType; + }; + + struct TypePairComparator + { + bool operator() (const TypePair& l, const TypePair& r) const + { + if (l.lType == r.lType) + return l.rType < r.rType; + return l.lType < r.lType; + } + }; + + typedef std::set<TypePair, TypePairComparator> EmulationSet; + EmulationSet mEmulateCompoundAdd; + EmulationSet mEmulateCompoundSub; + EmulationSet mEmulateCompoundMul; + EmulationSet mEmulateCompoundDiv; + + // Stack of function call parameter iterators + std::vector<TIntermSequence::const_iterator> mSeqIterStack; + + bool mDeclaringVariables; + bool mInLValue; + bool mInFunctionCallOutParameter; + + struct TStringComparator + { + bool operator() (const TString& a, const TString& b) const { return a.compare(b) < 0; } + }; + + // Map from function names to their parameter sequences + std::map<TString, TIntermSequence*, TStringComparator> mFunctionMap; +}; + +#endif // COMPILER_TRANSLATOR_EMULATE_PRECISION_H_ |