Remove ANGLE

This marks the end of EGL and OpenGL ES support on Windows.

The concepts of -opengl dynamic, -opengl desktop, QT_OPENGL=software,
etc. remain unchanged, with the exception of the disapperance of
everything ANGLE related.

CMake builds now work identically to qmake on Windows: they default to
'dynamic' OpenGL on Windows, unless -DINPUT_opengl=desktop is specified.

On Windows, Qt 6 is expected to default to the "dynamic" OpenGL model by
default, just like Qt 5.15. This can be changed by switching to "desktop"
OpenGL, which will link to opengl32 (publicly, so other libs and applications
will do so as well) and disallows using another OpenGL DLL.

The "dynamic" mode is essential still because the fallback to a software
rasterizer, such as the opengl32sw.dll we ship with the Qt packages,
has to to work exactly like in Qt 5, the removal of ANGLE does not
change this concept in any way (except of course that the middle option
of using ANGLE is now gone)

When it comes to the windows plugin's OpenGL blacklist feature, it works
like before and accepts the ANGLE/D3D related keywords. They will
then be ignored. Similarly, requesting QT_OPENGL=angle is ignored (but
will show a warning).

The D3D11 and DXGI configure time tests are removed: Qt 5.14 already
depends on D3D 11.1 and DXGI 1.3 headers being available unconditionally
on Win32 (in QRhi's D3D11 backend). No need to test for these.

[ChangeLog][Windows] ANGLE is no longer included with Qt. Dynamic OpenGL
builds work like before but ANGLE is no longer an option. OpenGL proper
or an alternative opengl32 implementation are the two remaining options
now. Attempting to set QT_OPENGL=angle or Qt::AA_UseOpenGLES will have
no effect on Windows.

Fixes: QTBUG-79103
Change-Id: Ia404e0d07f3fe191b27434d863c81180112ecb3b
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>

1 files changed, 0 insertions, 254 deletions

diff --git a/src/3rdparty/angle/src/compiler/translator/IntermNode_util.cpp b/src/3rdparty/angle/src/compiler/translator/IntermNode_util.cpp
deleted file mode 100644
index 9f1f596c43..0000000000
--- a/src/3rdparty/angle/src/compiler/translator/IntermNode_util.cpp
+++ /dev/null
@@ -1,254 +0,0 @@
-//
-// Copyright (c) 2017 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.
-//
-// IntermNode_util.cpp: High-level utilities for creating AST nodes and node hierarchies. Mostly
-// meant to be used in AST transforms.
-
-#include "compiler/translator/IntermNode_util.h"
-
-#include "compiler/translator/SymbolTable.h"
-
-namespace sh
-{
-
-namespace
-{
-
-TName GetInternalFunctionName(const char *name)
-{
-    TString nameStr(name);
-    TName nameObj(nameStr);
-    nameObj.setInternal(true);
-    return nameObj;
-}
-
-const TFunction *LookUpBuiltInFunction(const TString &name,
-                                       const TIntermSequence *arguments,
-                                       const TSymbolTable &symbolTable,
-                                       int shaderVersion)
-{
-    TString mangledName = TFunction::GetMangledNameFromCall(name, *arguments);
-    TSymbol *symbol     = symbolTable.findBuiltIn(mangledName, shaderVersion);
-    if (symbol)
-    {
-        ASSERT(symbol->isFunction());
-        return static_cast<const TFunction *>(symbol);
-    }
-    return nullptr;
-}
-
-}  // anonymous namespace
-
-TIntermFunctionPrototype *CreateInternalFunctionPrototypeNode(const TType &returnType,
-                                                              const char *name,
-                                                              const TSymbolUniqueId &functionId)
-{
-    TIntermFunctionPrototype *functionNode = new TIntermFunctionPrototype(returnType, functionId);
-    functionNode->getFunctionSymbolInfo()->setNameObj(GetInternalFunctionName(name));
-    return functionNode;
-}
-
-TIntermFunctionDefinition *CreateInternalFunctionDefinitionNode(const TType &returnType,
-                                                                const char *name,
-                                                                TIntermBlock *functionBody,
-                                                                const TSymbolUniqueId &functionId)
-{
-    TIntermFunctionPrototype *prototypeNode =
-        CreateInternalFunctionPrototypeNode(returnType, name, functionId);
-    return new TIntermFunctionDefinition(prototypeNode, functionBody);
-}
-
-TIntermAggregate *CreateInternalFunctionCallNode(const TType &returnType,
-                                                 const char *name,
-                                                 const TSymbolUniqueId &functionId,
-                                                 TIntermSequence *arguments)
-{
-    TIntermAggregate *functionNode = TIntermAggregate::CreateFunctionCall(
-        returnType, functionId, GetInternalFunctionName(name), arguments);
-    return functionNode;
-}
-
-TIntermTyped *CreateZeroNode(const TType &type)
-{
-    TType constType(type);
-    constType.setQualifier(EvqConst);
-
-    if (!type.isArray() && type.getBasicType() != EbtStruct)
-    {
-        size_t size       = constType.getObjectSize();
-        TConstantUnion *u = new TConstantUnion[size];
-        for (size_t i = 0; i < size; ++i)
-        {
-            switch (type.getBasicType())
-            {
-                case EbtFloat:
-                    u[i].setFConst(0.0f);
-                    break;
-                case EbtInt:
-                    u[i].setIConst(0);
-                    break;
-                case EbtUInt:
-                    u[i].setUConst(0u);
-                    break;
-                case EbtBool:
-                    u[i].setBConst(false);
-                    break;
-                default:
-                    // CreateZeroNode is called by ParseContext that keeps parsing even when an
-                    // error occurs, so it is possible for CreateZeroNode to be called with
-                    // non-basic types. This happens only on error condition but CreateZeroNode
-                    // needs to return a value with the correct type to continue the typecheck.
-                    // That's why we handle non-basic type by setting whatever value, we just need
-                    // the type to be right.
-                    u[i].setIConst(42);
-                    break;
-            }
-        }
-
-        TIntermConstantUnion *node = new TIntermConstantUnion(u, constType);
-        return node;
-    }
-
-    if (type.getBasicType() == EbtVoid)
-    {
-        // Void array. This happens only on error condition, similarly to the case above. We don't
-        // have a constructor operator for void, so this needs special handling. We'll end up with a
-        // value without the array type, but that should not be a problem.
-        while (constType.isArray())
-        {
-            constType.toArrayElementType();
-        }
-        return CreateZeroNode(constType);
-    }
-
-    TIntermSequence *arguments = new TIntermSequence();
-
-    if (type.isArray())
-    {
-        TType elementType(type);
-        elementType.toArrayElementType();
-
-        size_t arraySize = type.getOutermostArraySize();
-        for (size_t i = 0; i < arraySize; ++i)
-        {
-            arguments->push_back(CreateZeroNode(elementType));
-        }
-    }
-    else
-    {
-        ASSERT(type.getBasicType() == EbtStruct);
-
-        const TStructure *structure = type.getStruct();
-        for (const auto &field : structure->fields())
-        {
-            arguments->push_back(CreateZeroNode(*field->type()));
-        }
-    }
-
-    return TIntermAggregate::CreateConstructor(constType, arguments);
-}
-
-TIntermConstantUnion *CreateIndexNode(int index)
-{
-    TConstantUnion *u = new TConstantUnion[1];
-    u[0].setIConst(index);
-
-    TType type(EbtInt, EbpUndefined, EvqConst, 1);
-    TIntermConstantUnion *node = new TIntermConstantUnion(u, type);
-    return node;
-}
-
-TIntermConstantUnion *CreateBoolNode(bool value)
-{
-    TConstantUnion *u = new TConstantUnion[1];
-    u[0].setBConst(value);
-
-    TType type(EbtBool, EbpUndefined, EvqConst, 1);
-    TIntermConstantUnion *node = new TIntermConstantUnion(u, type);
-    return node;
-}
-
-TIntermSymbol *CreateTempSymbolNode(const TSymbolUniqueId &id,
-                                    const TType &type,
-                                    TQualifier qualifier)
-{
-    TInfoSinkBase symbolNameOut;
-    symbolNameOut << "s" << id.get();
-    TString symbolName = symbolNameOut.c_str();
-
-    TIntermSymbol *node = new TIntermSymbol(id, symbolName, type);
-    node->setInternal(true);
-
-    ASSERT(qualifier == EvqTemporary || qualifier == EvqConst || qualifier == EvqGlobal);
-    node->getTypePointer()->setQualifier(qualifier);
-
-    // TODO(oetuaho): Might be useful to sanitize layout qualifier etc. on the type of the created
-    // symbol. This might need to be done in other places as well.
-    return node;
-}
-
-TIntermDeclaration *CreateTempInitDeclarationNode(const TSymbolUniqueId &id,
-                                                  TIntermTyped *initializer,
-                                                  TQualifier qualifier)
-{
-    ASSERT(initializer != nullptr);
-    TIntermSymbol *tempSymbol = CreateTempSymbolNode(id, initializer->getType(), qualifier);
-    TIntermDeclaration *tempDeclaration = new TIntermDeclaration();
-    TIntermBinary *tempInit             = new TIntermBinary(EOpInitialize, tempSymbol, initializer);
-    tempDeclaration->appendDeclarator(tempInit);
-    return tempDeclaration;
-}
-
-TIntermBlock *EnsureBlock(TIntermNode *node)
-{
-    if (node == nullptr)
-        return nullptr;
-    TIntermBlock *blockNode = node->getAsBlock();
-    if (blockNode != nullptr)
-        return blockNode;
-
-    blockNode = new TIntermBlock();
-    blockNode->setLine(node->getLine());
-    blockNode->appendStatement(node);
-    return blockNode;
-}
-
-TIntermSymbol *ReferenceGlobalVariable(const TString &name, const TSymbolTable &symbolTable)
-{
-    TVariable *var = reinterpret_cast<TVariable *>(symbolTable.findGlobal(name));
-    ASSERT(var);
-    return new TIntermSymbol(var->getUniqueId(), name, var->getType());
-}
-
-TIntermSymbol *ReferenceBuiltInVariable(const TString &name,
-                                        const TSymbolTable &symbolTable,
-                                        int shaderVersion)
-{
-    const TVariable *var =
-        reinterpret_cast<const TVariable *>(symbolTable.findBuiltIn(name, shaderVersion, true));
-    ASSERT(var);
-    return new TIntermSymbol(var->getUniqueId(), name, var->getType());
-}
-
-TIntermTyped *CreateBuiltInFunctionCallNode(const TString &name,
-                                            TIntermSequence *arguments,
-                                            const TSymbolTable &symbolTable,
-                                            int shaderVersion)
-{
-    const TFunction *fn = LookUpBuiltInFunction(name, arguments, symbolTable, shaderVersion);
-    ASSERT(fn);
-    TOperator op = fn->getBuiltInOp();
-    if (op != EOpNull)
-    {
-        if (arguments->size() == 1)
-        {
-            return new TIntermUnary(op, arguments->at(0)->getAsTyped());
-        }
-        return TIntermAggregate::Create(fn->getReturnType(), op, arguments);
-    }
-    return TIntermAggregate::CreateBuiltInFunctionCall(*fn, arguments);
-}
-
-}  // namespace sh