kumquat-buildroot/package/qt5/qt5webengine/5.6.3/0002-Load-libEGL-and-libGLES2-symbols-implicitly.patch
Gaël PORTAY 00012bf9d5 qt5webengine: enable build for 5.6.3
The build was broken in 5.6.2 and was disabled.

It compiles fine since 5.6.3.

The two additional patches are useful at run-time.

The first one avoid the need to specify the path to the SSL certificate
directory (using an additional environment variable).

The second one is the same used in 5.9.x (plus resolved conflicts). It uses the
process's context to get handles on EGL and GLESv2 libraries. Those libraries
are linked to Qt WebEngine at compile time.

The patch is particularly usefull for RPI boards since the raspberrypi userland
package does not provide the libEGLv2.so.2 and libGLES.so.1 symlinks. Both
library paths are hardcoded in Qt WebEngine.

Signed-off-by: Gaël PORTAY <gael.portay@savoirfairelinux.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-11-27 21:42:12 +01:00

94 lines
3.5 KiB
Diff

From bdfd084296681bcead17c42f1e5cf0e24ee04f65 Mon Sep 17 00:00:00 2001
From: Viktor Engelmann <viktor.engelmann@qt.io>
Date: Fri, 7 Jul 2017 12:56:19 +0200
Subject: [PATCH] Load libEGL and libGLES2 symbols implicitly
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Instead of explicitly loading libraries from hard-coded locations,
we now just call dlopen(NULL, RTLD_LAZY). This returns a handle to
the host process'es context, which already contains the symbols of
both these libraries, because we link against them.
It was necessary to bypass LoadLibrary, because that expects a non-NULL
file path, so we couldn't pass NULL through that interface.
Upstream-Status: Merged
Task-number: QTBUG-57761
Change-Id: I29f037dfe542222b5188a33c7727c81a464a87bb
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Reviewed-by: Michal Klocek <michal.klocek@qt.io>
Signed-off-by: Gaël PORTAY <gael.portay@savoirfairelinux.com>
[gportay: backport from 5.9 and merge conflicts]
---
src/core/surface_factory_qt.cpp | 40 ++++++++--------------------------------
1 file changed, 8 insertions(+), 32 deletions(-)
diff --git a/src/core/surface_factory_qt.cpp b/src/core/surface_factory_qt.cpp
index 48c91bfc..c6059b67 100644
--- a/src/core/surface_factory_qt.cpp
+++ b/src/core/surface_factory_qt.cpp
@@ -51,51 +51,27 @@
#if defined(USE_OZONE)
#include <EGL/egl.h>
-
-#ifndef QT_LIBDIR_EGL
-#define QT_LIBDIR_EGL "/usr/lib"
-#endif
-#ifndef QT_LIBDIR_GLES2
-#define QT_LIBDIR_GLES2 QT_LIBDIR_EGL
-#endif
+#include <dlfcn.h>
namespace QtWebEngineCore {
-base::NativeLibrary LoadLibrary(const base::FilePath& filename) {
- base::NativeLibraryLoadError error;
- base::NativeLibrary library = base::LoadNativeLibrary(filename, &error);
- if (!library) {
- LOG(ERROR) << "Failed to load " << filename.MaybeAsASCII() << ": " << error.ToString();
- return NULL;
- }
- return library;
-}
-
bool SurfaceFactoryQt::LoadEGLGLES2Bindings(AddGLLibraryCallback add_gl_library, SetGLGetProcAddressProcCallback set_gl_get_proc_address)
{
- base::FilePath libEGLPath = QtWebEngineCore::toFilePath(QT_LIBDIR_EGL);
- libEGLPath = libEGLPath.Append("libEGL.so.1");
- base::NativeLibrary eglLibrary = LoadLibrary(libEGLPath);
- if (!eglLibrary)
- return false;
-
- base::FilePath libGLES2Path = QtWebEngineCore::toFilePath(QT_LIBDIR_GLES2);
- libGLES2Path = libGLES2Path.Append("libGLESv2.so.2");
- base::NativeLibrary gles2Library = LoadLibrary(libGLES2Path);
- if (!gles2Library)
+ base::NativeLibrary eglgles2Library = dlopen(NULL, RTLD_LAZY);
+ if (!eglgles2Library) {
+ LOG(ERROR) << "Failed to open EGL/GLES2 context " << dlerror();
return false;
+ }
- gfx::GLGetProcAddressProc get_proc_address = reinterpret_cast<gfx::GLGetProcAddressProc>(base::GetFunctionPointerFromNativeLibrary(eglLibrary, "eglGetProcAddress"));
+ gfx::GLGetProcAddressProc get_proc_address = reinterpret_cast<gfx::GLGetProcAddressProc>(base::GetFunctionPointerFromNativeLibrary(eglgles2Library, "eglGetProcAddress"));
if (!get_proc_address) {
LOG(ERROR) << "eglGetProcAddress not found.";
- base::UnloadNativeLibrary(eglLibrary);
- base::UnloadNativeLibrary(gles2Library);
+ base::UnloadNativeLibrary(eglgles2Library);
return false;
}
gfx::SetGLGetProcAddressProc(get_proc_address);
- gfx::AddGLNativeLibrary(eglLibrary);
- gfx::AddGLNativeLibrary(gles2Library);
+ gfx::AddGLNativeLibrary(eglgles2Library);
return true;
}
--
2.15.0