1 files changed, 62 insertions, 6 deletions
diff --git a/src/opengl/qgl_p.h b/src/opengl/qgl_p.h
index ab72c9c..11770d3 100644
--- a/src/opengl/qgl_p.h
+++ b/src/opengl/qgl_p.h
@@ -133,9 +133,6 @@ public:
         : ref(1)
     {
         opts = QGL::DoubleBuffer | QGL::DepthBuffer | QGL::Rgba | QGL::DirectRendering | QGL::StencilBuffer;
-#if defined(QT_OPENGL_ES_2)
-        opts |= QGL::SampleBuffers;
-#endif
         pln = 0;
         depthSize = accumSize = stencilSize = redSize = greenSize = blueSize = alphaSize = -1;
         numSamples = -1;
@@ -222,6 +219,8 @@ public:
 class QGLContextResource;
 class QGLSharedResourceGuard;
 
+typedef QHash<QString, GLuint> QGLDDSCache;
+
 // QGLContextPrivate has the responsibility of creating context groups.
 // QGLContextPrivate and QGLShareRegister will both maintain the reference counter and destroy
 // context groups when needed.
@@ -246,6 +245,7 @@ private:
     QHash<QGLContextResource *, void *> m_resources;
     QGLSharedResourceGuard *m_guards; // double-linked list of active guards.
     QAtomicInt m_refs;
+    QGLDDSCache m_dds_cache;
 
     void cleanupResources(const QGLContext *ctx);
 
@@ -377,7 +377,11 @@ public:
         PixelBufferObject       = 0x00000800,
         FramebufferBlit         = 0x00001000,
         NPOTTextures            = 0x00002000,
-        BGRATextureFormat       = 0x00004000
+        BGRATextureFormat       = 0x00004000,
+        DDSTextureCompression   = 0x00008000,
+        ETC1TextureCompression  = 0x00010000,
+        PVRTCTextureCompression = 0x00020000,
+        FragmentShader          = 0x00040000
     };
     Q_DECLARE_FLAGS(Extensions, Extension)
 
@@ -390,7 +394,7 @@ public:
 Q_DECLARE_OPERATORS_FOR_FLAGS(QGLExtensions::Extensions)
 
 
-class Q_AUTOTEST_EXPORT QGLShareRegister
+class Q_OPENGL_EXPORT QGLShareRegister
 {
 public:
     QGLShareRegister() {}
@@ -482,6 +486,14 @@ public:
     QPixmapData* boundPixmap;
 #endif
 
+    bool canBindCompressedTexture
+        (const char *buf, int len, const char *format, bool *hasAlpha);
+    QSize bindCompressedTexture
+        (const QString& fileName, const char *format = 0);
+    QSize bindCompressedTexture
+        (const char *buf, int len, const char *format = 0);
+    QSize bindCompressedTextureDDS(const char *buf, int len);
+    QSize bindCompressedTexturePVR(const char *buf, int len);
 };
 
 class QGLTextureCache {
@@ -518,7 +530,8 @@ bool qt_gl_preferGL2Engine();
 
 inline GLenum qt_gl_preferredTextureFormat()
 {
-    return QSysInfo::ByteOrder == QSysInfo::BigEndian ? GL_RGBA : GL_BGRA;
+    return (QGLExtensions::glExtensions & QGLExtensions::BGRATextureFormat) && QSysInfo::ByteOrder == QSysInfo::LittleEndian
+        ? GL_BGRA : GL_RGBA;
 }
 
 inline GLenum qt_gl_preferredTextureTarget()
@@ -597,6 +610,49 @@ private:
     friend class QGLContextGroup;
 };
 
+
+// This class can be used to match GL extensions with 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))
+    {}
+
+    bool match(const char *str) {
+        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;
+        }
+        return false;
+    }
+
+private:
+    const char *gl_extensions;
+    int gl_extensions_length;
+};
+
 QT_END_NAMESPACE
 
 #endif // QGL_P_H