gfx/angle/src/compiler/ValidateLimitations.h@97036ab72558
gfx/angle/src/compiler/ValidateLimitations.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 //
2 // Copyright (c) 2010 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
7 #include "GLSLANG/ShaderLang.h"
8 #include "compiler/intermediate.h"
10 class TInfoSinkBase;
12 struct TLoopInfo {
13 struct TIndex {
14 int id; // symbol id.
15 } index;
16 TIntermLoop* loop;
17 };
18 typedef TVector<TLoopInfo> TLoopStack;
20 // Traverses intermediate tree to ensure that the shader does not exceed the
21 // minimum functionality mandated in GLSL 1.0 spec, Appendix A.
22 class ValidateLimitations : public TIntermTraverser {
23 public:
24 ValidateLimitations(ShShaderType shaderType, TInfoSinkBase& sink);
26 int numErrors() const { return mNumErrors; }
28 virtual bool visitBinary(Visit, TIntermBinary*);
29 virtual bool visitUnary(Visit, TIntermUnary*);
30 virtual bool visitAggregate(Visit, TIntermAggregate*);
31 virtual bool visitLoop(Visit, TIntermLoop*);
33 private:
34 void error(TSourceLoc loc, const char *reason, const char* token);
36 bool withinLoopBody() const;
37 bool isLoopIndex(const TIntermSymbol* symbol) const;
38 bool validateLoopType(TIntermLoop* node);
39 bool validateForLoopHeader(TIntermLoop* node, TLoopInfo* info);
40 bool validateForLoopInit(TIntermLoop* node, TLoopInfo* info);
41 bool validateForLoopCond(TIntermLoop* node, TLoopInfo* info);
42 bool validateForLoopExpr(TIntermLoop* node, TLoopInfo* info);
43 // Returns true if none of the loop indices is used as the argument to
44 // the given function out or inout parameter.
45 bool validateFunctionCall(TIntermAggregate* node);
46 bool validateOperation(TIntermOperator* node, TIntermNode* operand);
48 // Returns true if indexing does not exceed the minimum functionality
49 // mandated in GLSL 1.0 spec, Appendix A, Section 5.
50 bool isConstExpr(TIntermNode* node);
51 bool isConstIndexExpr(TIntermNode* node);
52 bool validateIndexing(TIntermBinary* node);
54 ShShaderType mShaderType;
55 TInfoSinkBase& mSink;
56 int mNumErrors;
57 TLoopStack mLoopStack;
58 };
