Update ANGLE to chromium/3280

Change-Id: I0802c0d7486f772d361f87a544d6c5af937f4ca1
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

1 files changed, 145 insertions, 47 deletions

diff --git a/src/3rdparty/angle/src/compiler/translator/BuiltInFunctionEmulator.h b/src/3rdparty/angle/src/compiler/translator/BuiltInFunctionEmulator.h
index 6976edfd57..5f15f66224 100644
--- a/src/3rdparty/angle/src/compiler/translator/BuiltInFunctionEmulator.h
+++ b/src/3rdparty/angle/src/compiler/translator/BuiltInFunctionEmulator.h
@@ -9,77 +9,175 @@
 
 #include "compiler/translator/InfoSink.h"
 #include "compiler/translator/IntermNode.h"
+#include "compiler/translator/ParamType.h"
+
+namespace sh
+{
+
+struct MiniFunctionId
+{
+    constexpr MiniFunctionId(TOperator op         = EOpNull,
+                             ParamType paramType1 = ParamType::Void,
+                             ParamType paramType2 = ParamType::Void,
+                             ParamType paramType3 = ParamType::Void,
+                             ParamType paramType4 = ParamType::Void)
+        : op(op),
+          paramType1(paramType1),
+          paramType2(paramType2),
+          paramType3(paramType3),
+          paramType4(paramType4)
+    {
+    }
+
+    TOperator op;
+    ParamType paramType1;
+    ParamType paramType2;
+    ParamType paramType3;
+    ParamType paramType4;
+};
+
+class FunctionId final
+{
+  public:
+    FunctionId();
+    FunctionId(TOperator op, const TType *param);
+    FunctionId(TOperator op, const TType *param1, const TType *param2);
+    FunctionId(TOperator op, const TType *param1, const TType *param2, const TType *param3);
+    FunctionId(TOperator op,
+               const TType *param1,
+               const TType *param2,
+               const TType *param3,
+               const TType *param4);
+
+    FunctionId(const FunctionId &) = default;
+    FunctionId &operator=(const FunctionId &) = default;
+
+    bool operator==(const FunctionId &other) const;
+    bool operator<(const FunctionId &other) const;
+
+    FunctionId getCopy() const;
+
+  private:
+    friend bool operator==(const MiniFunctionId &miniId, const FunctionId &functionId);
+    TOperator mOp;
+
+    // The memory that these TType objects use is freed by PoolAllocator. The
+    // BuiltInFunctionEmulator's lifetime can extend until after the memory pool is freed, but
+    // that's not an issue since this class never destructs these objects.
+    const TType *mParam1;
+    const TType *mParam2;
+    const TType *mParam3;
+    const TType *mParam4;
+};
+
+inline bool operator==(ParamType paramType, const TType *type)
+{
+    return SameParamType(paramType, type->getBasicType(), type->getNominalSize(),
+                         type->getSecondarySize());
+}
+
+inline bool operator==(const MiniFunctionId &miniId, const FunctionId &functionId)
+{
+    return miniId.op == functionId.mOp && miniId.paramType1 == functionId.mParam1 &&
+           miniId.paramType2 == functionId.mParam2 && miniId.paramType3 == functionId.mParam3 &&
+           miniId.paramType4 == functionId.mParam4;
+}
+
+using BuiltinQueryFunc = const char *(const FunctionId &);
 
 //
-// This class decides which built-in functions need to be replaced with the
-// emulated ones.
-// It can be used to work around driver bugs or implement functions that are
-// not natively implemented on a specific platform.
+// This class decides which built-in functions need to be replaced with the emulated ones. It can be
+// used to work around driver bugs or implement functions that are not natively implemented on a
+// specific platform.
 //
 class BuiltInFunctionEmulator
 {
   public:
     BuiltInFunctionEmulator();
 
-    void MarkBuiltInFunctionsForEmulation(TIntermNode *root);
+    void markBuiltInFunctionsForEmulation(TIntermNode *root);
 
-    void Cleanup();
+    void cleanup();
 
-    // "name(" becomes "webgl_name_emu(".
-    static TString GetEmulatedFunctionName(const TString &name);
+    // "name" gets written as "name_emu".
+    static void WriteEmulatedFunctionName(TInfoSinkBase &out, const char *name);
 
-    bool IsOutputEmpty() const;
+    bool isOutputEmpty() const;
 
-    // Output function emulation definition. This should be before any other
-    // shader source.
-    void OutputEmulatedFunctions(TInfoSinkBase &out) const;
+    // Output function emulation definition. This should be before any other shader source.
+    void outputEmulatedFunctions(TInfoSinkBase &out) const;
 
     // Add functions that need to be emulated.
-    void addEmulatedFunction(TOperator op, const TType *param, const char *emulatedFunctionDefinition);
-    void addEmulatedFunction(TOperator op, const TType *param1, const TType *param2,
-                             const char *emulatedFunctionDefinition);
-    void addEmulatedFunction(TOperator op, const TType *param1, const TType *param2, const TType *param3,
-                             const char *emulatedFunctionDefinition);
+    FunctionId addEmulatedFunction(TOperator op,
+                                   const TType *param,
+                                   const char *emulatedFunctionDefinition);
+    FunctionId addEmulatedFunction(TOperator op,
+                                   const TType *param1,
+                                   const TType *param2,
+                                   const char *emulatedFunctionDefinition);
+    FunctionId addEmulatedFunction(TOperator op,
+                                   const TType *param1,
+                                   const TType *param2,
+                                   const TType *param3,
+                                   const char *emulatedFunctionDefinition);
+    FunctionId addEmulatedFunction(TOperator op,
+                                   const TType *param1,
+                                   const TType *param2,
+                                   const TType *param3,
+                                   const TType *param4,
+                                   const char *emulatedFunctionDefinition);
+
+    FunctionId addEmulatedFunctionWithDependency(const FunctionId &dependency,
+                                                 TOperator op,
+                                                 const TType *param1,
+                                                 const TType *param2,
+                                                 const char *emulatedFunctionDefinition);
+    FunctionId addEmulatedFunctionWithDependency(const FunctionId &dependency,
+                                                 TOperator op,
+                                                 const TType *param1,
+                                                 const TType *param2,
+                                                 const TType *param3,
+                                                 const TType *param4,
+                                                 const char *emulatedFunctionDefinition);
+
+    void addFunctionMap(BuiltinQueryFunc queryFunc);
 
   private:
     class BuiltInFunctionEmulationMarker;
 
-    // Records that a function is called by the shader and might need to be
-    // emulated. If the function is not in mEmulatedFunctions, this becomes a
-    // no-op. Returns true if the function call needs to be replaced with an
-    // emulated one.
-    bool SetFunctionCalled(TOperator op, const TType &param);
-    bool SetFunctionCalled(TOperator op, const TType &param1, const TType &param2);
-    bool SetFunctionCalled(TOperator op, const TType &param1, const TType &param2, const TType &param3);
-
-    class FunctionId {
-      public:
-        FunctionId(TOperator op, const TType *param);
-        FunctionId(TOperator op, const TType *param1, const TType *param2);
-        FunctionId(TOperator op, const TType *param1, const TType *param2, const TType *param3);
-
-        bool operator==(const FunctionId &other) const;
-        bool operator<(const FunctionId &other) const;
-
-        FunctionId getCopy() const;
-      private:
-        TOperator mOp;
-
-        // The memory that these TType objects use is freed by PoolAllocator. The BuiltInFunctionEmulator's lifetime
-        // can extend until after the memory pool is freed, but that's not an issue since this class never destructs
-        // these objects.
-        const TType *mParam1;
-        const TType *mParam2;
-        const TType *mParam3;
-    };
-
-    bool SetFunctionCalled(const FunctionId &functionId);
+    // Records that a function is called by the shader and might need to be emulated. If the
+    // function is not in mEmulatedFunctions, this becomes a no-op. Returns true if the function
+    // call needs to be replaced with an emulated one.
+    bool setFunctionCalled(TOperator op, const TType &param);
+    bool setFunctionCalled(TOperator op, const TType &param1, const TType &param2);
+    bool setFunctionCalled(TOperator op,
+                           const TType &param1,
+                           const TType &param2,
+                           const TType &param3);
+    bool setFunctionCalled(TOperator op,
+                           const TType &param1,
+                           const TType &param2,
+                           const TType &param3,
+                           const TType &param4);
+
+    bool setFunctionCalled(const FunctionId &functionId);
+
+    const char *findEmulatedFunction(const FunctionId &functionId) const;
 
     // Map from function id to emulated function definition
     std::map<FunctionId, std::string> mEmulatedFunctions;
 
+    // Map from dependent functions to their dependencies. This structure allows each function to
+    // have at most one dependency.
+    std::map<FunctionId, FunctionId> mFunctionDependencies;
+
     // Called function ids
     std::vector<FunctionId> mFunctions;
+
+    // Constexpr function tables.
+    std::vector<BuiltinQueryFunc *> mQueryFunctions;
 };
 
+}  // namespace sh
+
 #endif  // COMPILER_TRANSLATOR_BUILTINFUNCTIONEMULATOR_H_