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// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:critical reason:execute-external-code
// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gl_ozone_qt.h"
#include "surface_factory_qt.h"
#include "ozone_util_qt.h"
#include <QtCore/private/qconfig_p.h>
#include <QtGui/qguiapplication.h>
#include <QtGui/qopenglcontext.h>
#include "ui/base/ozone_buildflags.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_display.h"
#include "ui/gl/gl_surface.h"
#include "ui/gl/gl_utils.h"
#include "ui/ozone/common/native_pixmap_egl_binding.h"
#if BUILDFLAG(IS_OZONE_X11)
#include "ozone_util_qt.h"
#include "ui/ozone/platform/x11/native_pixmap_egl_x11_binding.h"
#endif
#if QT_CONFIG(dlopen)
#include <dlfcn.h>
#endif
using namespace Qt::StringLiterals;
extern "C" {
typedef void (*__eglMustCastToProperFunctionPointerType)(void);
extern __eglMustCastToProperFunctionPointerType EGL_GetProcAddress(const char *procname);
}
namespace ui {
NativePixmapSupportType GLOzoneQt::getNativePixmapSupportType()
{
if (!QtWebEngineCore::SurfaceFactoryQt::SupportsNativePixmaps())
return NativePixmapSupportType::kNone;
if (gl::GLSurfaceEGL::GetGLDisplayEGL()->ext->b_EGL_EXT_image_dma_buf_import)
return NativePixmapSupportType::kDMABuf;
#if BUILDFLAG(IS_OZONE_X11)
if (NativePixmapEGLX11Binding::CanImportNativeGLXPixmap())
return NativePixmapSupportType::kX11Pixmap;
#endif
return NativePixmapSupportType::kNone;
}
bool GLOzoneQt::LoadGLES2Bindings(const gl::GLImplementationParts & /*implementation*/)
{
return false;
}
bool GLOzoneQt::InitializeStaticGLBindings(const gl::GLImplementationParts &implementation)
{
return GLOzoneEGL::InitializeStaticGLBindings(implementation);
}
bool GLOzoneQt::InitializeExtensionSettingsOneOffPlatform(gl::GLDisplay *display)
{
return GLOzoneEGL::InitializeExtensionSettingsOneOffPlatform(
static_cast<gl::GLDisplayEGL *>(display));
}
scoped_refptr<gl::GLSurface> GLOzoneQt::CreateViewGLSurface(gl::GLDisplay * /*display*/,
gfx::AcceleratedWidget /*window*/)
{
return nullptr;
}
// based on GLOzoneEGLX11::CreateOffscreenGLSurface() (x11_surface_factory.cc)
scoped_refptr<gl::GLSurface> GLOzoneQt::CreateOffscreenGLSurface(gl::GLDisplay *display,
const gfx::Size &size)
{
gl::GLDisplayEGL *eglDisplay = display->GetAs<gl::GLDisplayEGL>();
if (eglDisplay->IsEGLSurfacelessContextSupported() && size.width() == 0 && size.height() == 0)
return InitializeGLSurface(new gl::SurfacelessEGL(eglDisplay, size));
return InitializeGLSurface(new gl::PbufferGLSurfaceEGL(eglDisplay, size));
}
gl::EGLDisplayPlatform GLOzoneQt::GetNativeDisplay()
{
#if BUILDFLAG(IS_OZONE_X11)
static EGLNativeDisplayType nativeDisplay =
reinterpret_cast<EGLNativeDisplayType>(OzoneUtilQt::getXDisplay());
if (nativeDisplay)
return gl::EGLDisplayPlatform(nativeDisplay);
#endif
if (gl::g_driver_egl.client_ext.b_EGL_MESA_platform_surfaceless)
return gl::EGLDisplayPlatform(EGL_DEFAULT_DISPLAY, EGL_PLATFORM_SURFACELESS_MESA);
return gl::EGLDisplayPlatform(EGL_DEFAULT_DISPLAY);
}
bool GLOzoneQt::CanImportNativePixmap(gfx::BufferFormat format)
{
switch (getNativePixmapSupportType()) {
case NativePixmapSupportType::kDMABuf:
return NativePixmapEGLBinding::IsBufferFormatSupported(format);
#if BUILDFLAG(IS_OZONE_X11)
case NativePixmapSupportType::kX11Pixmap:
return NativePixmapEGLX11Binding::IsBufferFormatSupported(format);
#endif
default:
return false;
}
}
std::unique_ptr<NativePixmapGLBinding>
GLOzoneQt::ImportNativePixmap(scoped_refptr<gfx::NativePixmap> pixmap,
gfx::BufferFormat plane_format, gfx::BufferPlane plane,
gfx::Size plane_size, const gfx::ColorSpace &color_space,
GLenum target, GLuint texture_id)
{
switch (getNativePixmapSupportType()) {
case NativePixmapSupportType::kDMABuf:
return NativePixmapEGLBinding::Create(pixmap, plane_format, plane, plane_size, color_space,
target, texture_id);
#if BUILDFLAG(IS_OZONE_X11)
case NativePixmapSupportType::kX11Pixmap:
return NativePixmapEGLX11Binding::Create(pixmap, plane_format, plane_size, target,
texture_id);
#endif
default:
NOTREACHED();
return nullptr;
}
}
bool GLOzoneANGLEQt::LoadGLES2Bindings(const gl::GLImplementationParts & /*implementation*/)
{
if (QGuiApplication::platformName() == "wayland"_L1) {
const char eglPlatformVar[] = "EGL_PLATFORM";
const QByteArray eglPlatform = qgetenv(eglPlatformVar);
if (eglPlatform.isEmpty())
qputenv(eglPlatformVar, "wayland");
else if (eglPlatform != "wayland") {
qWarning("EGL_PLATFORM environment variable is set to \"%s\". "
"This may break hardware rendering on Wayland.",
eglPlatform.constData());
}
}
gl::SetGLGetProcAddressProc(&EGL_GetProcAddress);
return true;
}
void GLOzoneEGLQt::ShutdownGL(gl::GLDisplay *display)
{
GLOzoneEGL::ShutdownGL(display);
#if QT_CONFIG(dlopen)
if (m_nativeEGLHandle)
dlclose(m_nativeEGLHandle);
#endif
}
bool GLOzoneEGLQt::LoadGLES2Bindings(const gl::GLImplementationParts & /*implementation*/)
{
gl::GLGetProcAddressProc getProcAddressPtr = nullptr;
#if QT_CONFIG(opengl) && QT_CONFIG(egl)
if (OzoneUtilQt::usingEGL()) {
QOpenGLContext *context = OzoneUtilQt::getQOpenGLContext();
getProcAddressPtr = reinterpret_cast<gl::GLGetProcAddressProc>(
context->getProcAddress("eglGetProcAddress"));
}
#endif
#if QT_CONFIG(dlopen)
if (getProcAddressPtr == nullptr) {
const char *eglPath = "libEGL.so.1";
m_nativeEGLHandle = dlopen(eglPath, RTLD_NOW);
if (!m_nativeEGLHandle) {
qWarning("Failed to load EGL library %s: %s", eglPath, dlerror());
return false;
}
getProcAddressPtr = reinterpret_cast<gl::GLGetProcAddressProc>(
dlsym(m_nativeEGLHandle, "eglGetProcAddress"));
}
#endif // QT_CONFIG(dlopen)
if (!getProcAddressPtr) {
char *error = nullptr;
#if QT_CONFIG(dlopen)
error = dlerror();
#endif
qWarning("Failed to get address of eglGetProcAddress: %s", error ? error : "no error.");
return false;
}
gl::SetGLGetProcAddressProc(getProcAddressPtr);
// TODO: Log EGL driver information.
// Nvidia fails to make EGL context current if libEGL.so.1 is loaded directly. This could
// be because of loading the wrong driver.
return true;
}
} // namespace ui
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