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, 120 deletions

diff --git a/src/3rdparty/angle/src/compiler/translator/InfoSink.h b/src/3rdparty/angle/src/compiler/translator/InfoSink.h
deleted file mode 100644
index 2705f48d59..0000000000
--- a/src/3rdparty/angle/src/compiler/translator/InfoSink.h
+++ /dev/null
@@ -1,120 +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_INFOSINK_H_
-#define COMPILER_TRANSLATOR_INFOSINK_H_
-
-#include <math.h>
-#include <stdlib.h>
-#include "compiler/translator/Common.h"
-#include "compiler/translator/Severity.h"
-
-namespace sh
-{
-
-// Returns the fractional part of the given floating-point number.
-inline float fractionalPart(float f)
-{
-    float intPart = 0.0f;
-    return modff(f, &intPart);
-}
-
-//
-// Encapsulate info logs for all objects that have them.
-//
-// The methods are a general set of tools for getting a variety of
-// messages and types inserted into the log.
-//
-class TInfoSinkBase
-{
-  public:
-    TInfoSinkBase() {}
-
-    template <typename T>
-    TInfoSinkBase &operator<<(const T &t)
-    {
-        TPersistStringStream stream;
-        stream << t;
-        sink.append(stream.str());
-        return *this;
-    }
-    // Override << operator for specific types. It is faster to append strings
-    // and characters directly to the sink.
-    TInfoSinkBase &operator<<(char c)
-    {
-        sink.append(1, c);
-        return *this;
-    }
-    TInfoSinkBase &operator<<(const char *str)
-    {
-        sink.append(str);
-        return *this;
-    }
-    TInfoSinkBase &operator<<(const TPersistString &str)
-    {
-        sink.append(str);
-        return *this;
-    }
-    TInfoSinkBase &operator<<(const TString &str)
-    {
-        sink.append(str.c_str());
-        return *this;
-    }
-    // Make sure floats are written with correct precision.
-    TInfoSinkBase &operator<<(float f)
-    {
-        // Make sure that at least one decimal point is written. If a number
-        // does not have a fractional part, the default precision format does
-        // not write the decimal portion which gets interpreted as integer by
-        // the compiler.
-        TPersistStringStream stream;
-        if (fractionalPart(f) == 0.0f)
-        {
-            stream.precision(1);
-            stream << std::showpoint << std::fixed << f;
-        }
-        else
-        {
-            stream.unsetf(std::ios::fixed);
-            stream.unsetf(std::ios::scientific);
-            stream.precision(8);
-            stream << f;
-        }
-        sink.append(stream.str());
-        return *this;
-    }
-    // Write boolean values as their names instead of integral value.
-    TInfoSinkBase &operator<<(bool b)
-    {
-        const char *str = b ? "true" : "false";
-        sink.append(str);
-        return *this;
-    }
-
-    void erase() { sink.clear(); }
-    int size() { return static_cast<int>(sink.size()); }
-
-    const TPersistString &str() const { return sink; }
-    const char *c_str() const { return sink.c_str(); }
-
-    void prefix(Severity severity);
-    void location(int file, int line);
-
-  private:
-    TPersistString sink;
-};
-
-class TInfoSink
-{
-  public:
-    TInfoSinkBase info;
-    TInfoSinkBase debug;
-    TInfoSinkBase obj;
-};
-
-}  // namespace sh
-
-#endif  // COMPILER_TRANSLATOR_INFOSINK_H_