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, 63 deletions

diff --git a/src/3rdparty/angle/src/compiler/translator/util.h b/src/3rdparty/angle/src/compiler/translator/util.h
deleted file mode 100644
index 6d6dc95b3b..0000000000
--- a/src/3rdparty/angle/src/compiler/translator/util.h
+++ /dev/null
@@ -1,63 +0,0 @@
-//
-// Copyright (c) 2002-2010 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_UTIL_H_
-#define COMPILER_TRANSLATOR_UTIL_H_
-
-#include <stack>
-
-#include "angle_gl.h"
-#include <GLSLANG/ShaderLang.h>
-
-#include "compiler/translator/HashNames.h"
-#include "compiler/translator/Operator.h"
-#include "compiler/translator/Types.h"
-
-// If overflow happens, clamp the value to UINT_MIN or UINT_MAX.
-// Return false if overflow happens.
-bool atoi_clamp(const char *str, unsigned int *value);
-
-namespace sh
-{
-class TSymbolTable;
-
-float NumericLexFloat32OutOfRangeToInfinity(const std::string &str);
-
-// strtof_clamp is like strtof but
-//   1. it forces C locale, i.e. forcing '.' as decimal point.
-//   2. it sets the value to infinity if overflow happens.
-//   3. str should be guaranteed to be in the valid format for a floating point number as defined
-//      by the grammar in the ESSL 3.00.6 spec section 4.1.4.
-// Return false if overflow happens.
-bool strtof_clamp(const std::string &str, float *value);
-
-GLenum GLVariableType(const TType &type);
-GLenum GLVariablePrecision(const TType &type);
-bool IsVaryingIn(TQualifier qualifier);
-bool IsVaryingOut(TQualifier qualifier);
-bool IsVarying(TQualifier qualifier);
-bool IsGeometryShaderInput(GLenum shaderType, TQualifier qualifier);
-InterpolationType GetInterpolationType(TQualifier qualifier);
-
-// Returns array brackets including size with outermost array size first, as specified in GLSL ES
-// 3.10 section 4.1.9.
-TString ArrayString(const TType &type);
-
-TString GetTypeName(const TType &type, ShHashFunction64 hashFunction, NameMap *nameMap);
-
-TType GetShaderVariableBasicType(const sh::ShaderVariable &var);
-
-bool IsBuiltinOutputVariable(TQualifier qualifier);
-bool IsBuiltinFragmentInputVariable(TQualifier qualifier);
-bool CanBeInvariantESSL1(TQualifier qualifier);
-bool CanBeInvariantESSL3OrGreater(TQualifier qualifier);
-bool IsOutputESSL(ShShaderOutput output);
-bool IsOutputGLSL(ShShaderOutput output);
-bool IsOutputHLSL(ShShaderOutput output);
-bool IsOutputVulkan(ShShaderOutput output);
-}  // namespace sh
-
-#endif  // COMPILER_TRANSLATOR_UTIL_H_