Add m-esr52 at 52.6.0

1 files changed, 249 insertions, 0 deletions

diff --git a/gfx/angle/src/compiler/translator/BuiltInFunctionEmulator.cpp b/gfx/angle/src/compiler/translator/BuiltInFunctionEmulator.cpp
new file mode 100755
index 000000000..152251fde
--- /dev/null
+++ b/gfx/angle/src/compiler/translator/BuiltInFunctionEmulator.cpp
@@ -0,0 +1,249 @@
+//
+// Copyright (c) 2002-2011 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.
+//
+
+#include "angle_gl.h"
+#include "compiler/translator/BuiltInFunctionEmulator.h"
+#include "compiler/translator/SymbolTable.h"
+#include "compiler/translator/Cache.h"
+
+namespace sh
+{
+
+class BuiltInFunctionEmulator::BuiltInFunctionEmulationMarker : public TIntermTraverser
+{
+  public:
+    BuiltInFunctionEmulationMarker(BuiltInFunctionEmulator &emulator)
+        : TIntermTraverser(true, false, false),
+          mEmulator(emulator)
+    {
+    }
+
+    bool visitUnary(Visit visit, TIntermUnary *node) override
+    {
+        if (visit == PreVisit)
+        {
+            bool needToEmulate = mEmulator.SetFunctionCalled(node->getOp(), node->getOperand()->getType());
+            if (needToEmulate)
+                node->setUseEmulatedFunction();
+        }
+        return true;
+    }
+
+    bool visitAggregate(Visit visit, TIntermAggregate *node) override
+    {
+        if (visit == PreVisit)
+        {
+            // Here we handle all the built-in functions instead of the ones we
+            // currently identified as problematic.
+            switch (node->getOp())
+            {
+                case EOpLessThan:
+                case EOpGreaterThan:
+                case EOpLessThanEqual:
+                case EOpGreaterThanEqual:
+                case EOpVectorEqual:
+                case EOpVectorNotEqual:
+                case EOpMod:
+                case EOpPow:
+                case EOpAtan:
+                case EOpMin:
+                case EOpMax:
+                case EOpClamp:
+                case EOpMix:
+                case EOpStep:
+                case EOpSmoothStep:
+                case EOpDistance:
+                case EOpDot:
+                case EOpCross:
+                case EOpFaceForward:
+                case EOpReflect:
+                case EOpRefract:
+                case EOpOuterProduct:
+                case EOpMul:
+                    break;
+                default:
+                    return true;
+            }
+            const TIntermSequence &sequence = *(node->getSequence());
+            bool needToEmulate = false;
+            // Right now we only handle built-in functions with two or three parameters.
+            if (sequence.size() == 2)
+            {
+                TIntermTyped *param1 = sequence[0]->getAsTyped();
+                TIntermTyped *param2 = sequence[1]->getAsTyped();
+                if (!param1 || !param2)
+                    return true;
+                needToEmulate = mEmulator.SetFunctionCalled(
+                    node->getOp(), param1->getType(), param2->getType());
+            }
+            else if (sequence.size() == 3)
+            {
+                TIntermTyped *param1 = sequence[0]->getAsTyped();
+                TIntermTyped *param2 = sequence[1]->getAsTyped();
+                TIntermTyped *param3 = sequence[2]->getAsTyped();
+                if (!param1 || !param2 || !param3)
+                    return true;
+                needToEmulate = mEmulator.SetFunctionCalled(
+                    node->getOp(), param1->getType(), param2->getType(), param3->getType());
+            }
+            else
+            {
+                return true;
+            }
+
+            if (needToEmulate)
+                node->setUseEmulatedFunction();
+        }
+        return true;
+    }
+
+  private:
+    BuiltInFunctionEmulator &mEmulator;
+};
+
+BuiltInFunctionEmulator::BuiltInFunctionEmulator()
+{}
+
+void BuiltInFunctionEmulator::addEmulatedFunction(TOperator op, const TType *param,
+                                                  const char *emulatedFunctionDefinition)
+{
+    mEmulatedFunctions[FunctionId(op, param)] = std::string(emulatedFunctionDefinition);
+}
+
+void BuiltInFunctionEmulator::addEmulatedFunction(TOperator op, const TType *param1, const TType *param2,
+                                                  const char *emulatedFunctionDefinition)
+{
+    mEmulatedFunctions[FunctionId(op, param1, param2)] = std::string(emulatedFunctionDefinition);
+}
+
+void BuiltInFunctionEmulator::addEmulatedFunction(TOperator op, const TType *param1, const TType *param2,
+                                                  const TType *param3, const char *emulatedFunctionDefinition)
+{
+    mEmulatedFunctions[FunctionId(op, param1, param2, param3)] = std::string(emulatedFunctionDefinition);
+}
+
+bool BuiltInFunctionEmulator::IsOutputEmpty() const
+{
+    return (mFunctions.size() == 0);
+}
+
+void BuiltInFunctionEmulator::OutputEmulatedFunctions(TInfoSinkBase &out) const
+{
+    for (size_t i = 0; i < mFunctions.size(); ++i)
+    {
+        out << mEmulatedFunctions.find(mFunctions[i])->second << "\n\n";
+    }
+}
+
+bool BuiltInFunctionEmulator::SetFunctionCalled(TOperator op, const TType &param)
+{
+    return SetFunctionCalled(FunctionId(op, &param));
+}
+
+bool BuiltInFunctionEmulator::SetFunctionCalled(TOperator op, const TType &param1, const TType &param2)
+{
+    return SetFunctionCalled(FunctionId(op, &param1, &param2));
+}
+
+bool BuiltInFunctionEmulator::SetFunctionCalled(TOperator op,
+                                                const TType &param1, const TType &param2, const TType &param3)
+{
+    return SetFunctionCalled(FunctionId(op, &param1, &param2, &param3));
+}
+
+bool BuiltInFunctionEmulator::SetFunctionCalled(const FunctionId &functionId)
+{
+    if (mEmulatedFunctions.find(functionId) != mEmulatedFunctions.end())
+    {
+        for (size_t i = 0; i < mFunctions.size(); ++i)
+        {
+            if (mFunctions[i] == functionId)
+                return true;
+        }
+        // Copy the functionId if it needs to be stored, to make sure that the TType pointers inside
+        // remain valid and constant.
+        mFunctions.push_back(functionId.getCopy());
+        return true;
+    }
+    return false;
+}
+
+void BuiltInFunctionEmulator::MarkBuiltInFunctionsForEmulation(TIntermNode *root)
+{
+    ASSERT(root);
+
+    if (mEmulatedFunctions.empty())
+        return;
+
+    BuiltInFunctionEmulationMarker marker(*this);
+    root->traverse(&marker);
+}
+
+void BuiltInFunctionEmulator::Cleanup()
+{
+    mFunctions.clear();
+}
+
+//static
+TString BuiltInFunctionEmulator::GetEmulatedFunctionName(
+    const TString &name)
+{
+    ASSERT(name[name.length() - 1] == '(');
+    return "webgl_" + name.substr(0, name.length() - 1) + "_emu(";
+}
+
+BuiltInFunctionEmulator::FunctionId::FunctionId(TOperator op, const TType *param)
+    : mOp(op),
+      mParam1(param),
+      mParam2(TCache::getType(EbtVoid)),
+      mParam3(TCache::getType(EbtVoid))
+{
+}
+
+BuiltInFunctionEmulator::FunctionId::FunctionId(TOperator op, const TType *param1, const TType *param2)
+    : mOp(op),
+      mParam1(param1),
+      mParam2(param2),
+      mParam3(TCache::getType(EbtVoid))
+{
+}
+
+BuiltInFunctionEmulator::FunctionId::FunctionId(TOperator op,
+                                                const TType *param1, const TType *param2, const TType *param3)
+    : mOp(op),
+      mParam1(param1),
+      mParam2(param2),
+      mParam3(param3)
+{
+}
+
+bool BuiltInFunctionEmulator::FunctionId::operator==(const BuiltInFunctionEmulator::FunctionId &other) const
+{
+    return (mOp == other.mOp &&
+            *mParam1 == *other.mParam1 &&
+            *mParam2 == *other.mParam2 &&
+            *mParam3 == *other.mParam3);
+}
+
+bool BuiltInFunctionEmulator::FunctionId::operator<(const BuiltInFunctionEmulator::FunctionId &other) const
+{
+    if (mOp != other.mOp)
+        return mOp < other.mOp;
+    if (*mParam1 != *other.mParam1)
+        return *mParam1 < *other.mParam1;
+    if (*mParam2 != *other.mParam2)
+        return *mParam2 < *other.mParam2;
+    if (*mParam3 != *other.mParam3)
+       return *mParam3 < *other.mParam3;
+    return false; // all fields are equal
+}
+
+BuiltInFunctionEmulator::FunctionId BuiltInFunctionEmulator::FunctionId::getCopy() const
+{
+    return FunctionId(mOp, new TType(*mParam1), new TType(*mParam2), new TType(*mParam3));
+}
+
+}  // namespace sh