1 files changed, 22 insertions, 29 deletions

diff --git a/src/opengl/qgl_p.h b/src/opengl/qgl_p.h
index 29d19854ef..6a503fab90 100644
--- a/src/opengl/qgl_p.h
+++ b/src/opengl/qgl_p.h
@@ -369,11 +369,14 @@ public:
     EGLSurface eglSurface;
     void destroyEglSurfaceForDevice();
     EGLSurface eglSurfaceForDevice() const;
+    static QEglProperties *extraWindowSurfaceCreationProps;
+    static void setExtraWindowSurfaceCreationProps(QEglProperties *props);
 #endif
 
 #if defined(Q_WS_QPA)
     QPlatformGLContext *platformContext;
     void setupSharing();
+
 #elif defined(Q_WS_X11) || defined(Q_WS_MAC)
     void* cx;
 #endif
@@ -416,6 +419,9 @@ public:
     uint workaround_brokenTextureFromPixmap : 1;
     uint workaround_brokenTextureFromPixmap_init : 1;
 
+    uint workaround_brokenAlphaTexSubImage : 1;
+    uint workaround_brokenAlphaTexSubImage_init : 1;
+
 #ifndef QT_NO_EGL
     uint ownsEglContext : 1;
 #endif
@@ -686,6 +692,7 @@ public:
     virtual ~QGLContextGroupResourceBase();
     void insert(const QGLContext *context, void *value);
     void *value(const QGLContext *context);
+    void cleanup(const QGLContext *context);
     void cleanup(const QGLContext *context, void *value);
     virtual void freeResource(void *value) = 0;
 
@@ -847,46 +854,32 @@ private:
 };
 
 
-// This class can be used to match GL extensions without doing any mallocs. The
-// class assumes that the GL extension string ends with a space character,
-// which it should do on all conformant platforms. Create the object and pass
-// in a pointer to the extension string, then call match() on each extension
-// that should be matched. The match() function takes the extension name
-// *without* the terminating space character as input.
-
 class QGLExtensionMatcher
 {
 public:
-    QGLExtensionMatcher(const char *str)
-        : gl_extensions(str), gl_extensions_length(qstrlen(str))
-    {}
+    QGLExtensionMatcher(const char *str);
+    QGLExtensionMatcher();
 
-    bool match(const char *str) {
+    bool match(const char *str) const {
         int str_length = qstrlen(str);
-        const char *extensions = gl_extensions;
-        int extensions_length = gl_extensions_length;
-
-        while (1) {
-            // the total length that needs to be matched is the str_length +
-            // the space character that terminates the extension name
-            if (extensions_length < str_length + 1)
-                return false;
-            if (qstrncmp(extensions, str, str_length) == 0 && extensions[str_length] == ' ')
-                return true;
 
-            int split_pos = 0;
-            while (split_pos < extensions_length && extensions[split_pos] != ' ')
-                ++split_pos;
-            ++split_pos; // added for the terminating space character
-            extensions += split_pos;
-            extensions_length -= split_pos;
+        Q_ASSERT(str);
+        Q_ASSERT(str_length > 0);
+        Q_ASSERT(str[str_length-1] != ' ');
+
+        for (int i = 0; i < m_offsets.size(); ++i) {
+            const char *extension = m_extensions.constData() + m_offsets.at(i);
+            if (qstrncmp(extension, str, str_length) == 0 && extension[str_length] == ' ')
+                return true;
         }
         return false;
     }
 
 private:
-    const char *gl_extensions;
-    int gl_extensions_length;
+    void init(const char *str);
+
+    QByteArray m_extensions;
+    QVector<int> m_offsets;
 };