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From a66d4cd82972996d76edff52d17464c150dec6a6 Mon Sep 17 00:00:00 2001
From: Samuli Piippo <samuli.piippo@qt.io>
Date: Mon, 11 Jun 2018 16:16:55 +0300
Subject: Add fallback lookup for eglGetProcAddress
Use the GLContext to find address for eglGetProcAddress symbol, if it's
not found with dlopen.
Change-Id: I3f5330c21ecc9b66e5e376d50d3fc6965b227f85
Reviewed-by: Michal Klocek <michal.klocek@qt.io>
---
src/core/gl_context_qt.cpp | 11 +++++++++++
src/core/gl_context_qt.h | 1 +
src/core/gl_surface_qt.cpp | 4 ++++
3 files changed, 16 insertions(+)
diff --git a/src/core/gl_context_qt.cpp b/src/core/gl_context_qt.cpp
index 9ed1db8b..95491709 100644
--- a/src/core/gl_context_qt.cpp
+++ b/src/core/gl_context_qt.cpp
@@ -155,6 +155,17 @@ QFunctionPointer GLContextHelper::getGlXGetProcAddress()
return get_proc_address;
}
+QFunctionPointer GLContextHelper::getEglGetProcAddress()
+{
+ QFunctionPointer get_proc_address = nullptr;
+#ifndef QT_NO_OPENGL
+ if (QOpenGLContext *context = qt_gl_global_share_context()) {
+ get_proc_address = context->getProcAddress("eglGetProcAddress");
+ }
+#endif
+ return get_proc_address;
+}
+
QT_END_NAMESPACE
#if defined(USE_OZONE) || defined(OS_WIN)
diff --git a/src/core/gl_context_qt.h b/src/core/gl_context_qt.h
index 8ffdad58..cecceabc 100644
--- a/src/core/gl_context_qt.h
+++ b/src/core/gl_context_qt.h
@@ -63,6 +63,7 @@ public:
static void* getXDisplay();
static void* getNativeDisplay();
static QFunctionPointer getGlXGetProcAddress();
+ static QFunctionPointer getEglGetProcAddress();
private:
Q_INVOKABLE bool initializeContextOnBrowserThread(gl::GLContext* context, gl::GLSurface* surface, gl::GLContextAttribs attribs);
diff --git a/src/core/gl_surface_qt.cpp b/src/core/gl_surface_qt.cpp
index 7e579246..4d38d7c2 100644
--- a/src/core/gl_surface_qt.cpp
+++ b/src/core/gl_surface_qt.cpp
@@ -227,6 +227,10 @@ bool InitializeStaticGLBindings(GLImplementation implementation) {
base::GetFunctionPointerFromNativeLibrary(library,
"eglGetProcAddress"));
if (!get_proc_address) {
+ QFunctionPointer address = GLContextHelper::getEglGetProcAddress();
+ get_proc_address = reinterpret_cast<gl::GLGetProcAddressProc>(address);
+ }
+ if (!get_proc_address) {
LOG(ERROR) << "eglGetProcAddress not found.";
base::UnloadNativeLibrary(library);
return false;
--
cgit v1.1-6-g87c4
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