remove gpuworkaround as it's not needed anymore

src/gpuworkaround.cpp

@@ -1,75 +0,0 @@
-#include "gpuworkaround.h"
-
-#include <QByteArray>
-#include <QLatin1String>
-#include <QString>
-#include <QVersionNumber>
-#include <QtWebEngineCore/qtwebenginecoreglobal.h>
-
-#include <cstdlib>
-
-namespace {
-
-constexpr auto kChromiumFlagsVar = "QTWEBENGINE_CHROMIUM_FLAGS";
-constexpr auto kDisableVideoDecode = "--disable-accelerated-video-decode";
-
-// First release carrying the multi-planar NativePixmap import fix.
-const QVersionNumber kFixedIn(6, 11, 2);
-
-bool envIsSet(const char *name)
-{
-    const char *value = std::getenv(name);
-    return value != nullptr && *value != '\0';
-}
-
-bool envIsTruthy(const char *name)
-{
-    const char *value = std::getenv(name);
-    if (value == nullptr || *value == '\0')
-        return false;
-    const QLatin1String s(value);
-    return s != QLatin1String("0") && s != QLatin1String("false");
-}
-
-// The runtime version, not QTWEBENGINECORE_VERSION: linking against a fixed
-// QtWebEngine should drop the workaround without rebuilding att.
-bool webEngineHasFix()
-{
-    QString version = QString::fromLatin1(qWebEngineVersion());
-    const QVersionNumber parsed = QVersionNumber::fromString(version);
-    return !parsed.isNull() && parsed >= kFixedIn;
-}
-
-// X11/GLX only ever imports BGRA8888 buffers, so it never hits the bug.
-bool onWayland()
-{
-    const char *forced = std::getenv("QT_QPA_PLATFORM");
-    if (forced != nullptr && *forced != '\0')
-        return QLatin1String(forced).startsWith(QLatin1String("wayland"));
-    return envIsSet("WAYLAND_DISPLAY");
-}
-
-} // namespace
-
-namespace gpuworkaround {
-
-void apply()
-{
-    if (envIsTruthy("ATT_NO_GPU_WORKAROUND"))
-        return;
-    if (!onWayland() || webEngineHasFix())
-        return;
-
-    QByteArray flags(qgetenv(kChromiumFlagsVar));
-
-    // Leave an explicit opinion about video decoding alone, whichever way it goes.
-    if (flags.contains("accelerated-video-decode"))
-        return;
-
-    if (!flags.isEmpty())
-        flags.append(' ');
-    flags.append(kDisableVideoDecode);
-    qputenv(kChromiumFlagsVar, flags);
-}
-
-} // namespace gpuworkaround

src/gpuworkaround.h

@@ -1,15 +0,0 @@
-#pragma once
-
-namespace gpuworkaround {
-
-// Works around QTBUG-145344: on Wayland, QtWebEngine before 6.11.2 cannot import
-// the multi-planar (YUV420) buffers that VA-API hardware decoding hands it, so
-// video renders as black/flickering while the log fills with
-// "SharedImageManager::ProduceSkia: ... non-existent mailbox". Disables
-// accelerated video decoding only where the bug applies.
-//
-// Must be called before QApplication is constructed. Set ATT_NO_GPU_WORKAROUND=1
-// to skip it.
-void apply();
-
-} // namespace gpuworkaround

src/main.cpp

@@ -1,6 +1,5 @@
 #include "adblock.h"
 #include "browserwindow.h"
-#include "gpuworkaround.h"
 #include "greasemonkey.h"
 #include "history.h"
 #include "urlutil.h"
@@ -47,10 +46,6 @@ constexpr auto kStyleSheet = R"(
 
 int main(int argc, char *argv[])
 {
-    // Chromium reads its flags out of the environment, so this has to happen
-    // before QtWebEngine gets a chance to initialize.
-    gpuworkaround::apply();
-
     QApplication app(argc, argv);
     QCoreApplication::setApplicationName(QStringLiteral("att"));
     QCoreApplication::setApplicationVersion(QStringLiteral("0.1.0"));