1 files changed, 71 insertions, 2 deletions

diff --git a/src/opengl/qgl_p.h b/src/opengl/qgl_p.h
index 1214f20..b1a63b5 100644
--- a/src/opengl/qgl_p.h
+++ b/src/opengl/qgl_p.h
@@ -61,6 +61,10 @@
 #include "QtCore/qhash.h"
 #include "private/qwidget_p.h"
 
+#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL)
+#include "private/qpixmapdata_gl_p.h"
+#endif
+
 #ifndef QT_OPENGL_ES_1_CL
 #define q_vertexType float
 #define q_vertexTypeEnum GL_FLOAT
@@ -239,6 +243,7 @@ public:
     QGLFormat glFormat;
     QGLFormat reqFormat;
     GLuint pbo;
+    GLuint fbo;
 
     uint valid : 1;
     uint sharing : 1;
@@ -256,6 +261,7 @@ public:
     GLint max_texture_size;
 
     GLuint current_fbo;
+    QPaintEngine *active_engine;
 
 #ifdef Q_WS_WIN
     static inline QGLExtensionFuncs& qt_get_extension_funcs(const QGLContext *ctx) { return ctx->d_ptr->extensionFuncs; }
@@ -283,6 +289,54 @@ Q_SIGNALS:
     void aboutToDestroyContext(const QGLContext *context);
 };
 
+class QGLPixelBuffer;
+class QGLFramebufferObject;
+class QWSGLWindowSurface;
+class QGLWindowSurface;
+class QGLDrawable {
+public:
+    QGLDrawable() : widget(0), buffer(0), fbo(0)
+#if defined(Q_WS_QWS) || (!defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL))
+                  , wsurf(0)
+#endif
+#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL)
+                  , pixmapData(0)
+#endif
+        {}
+    void setDevice(QPaintDevice *pdev);
+    void swapBuffers();
+    void makeCurrent();
+    void doneCurrent();
+    QSize size() const;
+    QGLFormat format() const;
+    GLuint bindTexture(const QImage &image, GLenum target = GL_TEXTURE_2D, GLint format = GL_RGBA);
+    GLuint bindTexture(const QPixmap &pixmap, GLenum target = GL_TEXTURE_2D, GLint format = GL_RGBA);
+    QColor backgroundColor() const;
+    QGLContext *context() const;
+    bool autoFillBackground() const;
+    bool hasTransparentBackground() const;
+
+#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL)
+    QGLPixmapData *copyOnBegin() const;
+#endif
+
+private:
+    bool wasBound;
+    QGLWidget *widget;
+    QGLPixelBuffer *buffer;
+    QGLFramebufferObject *fbo;
+#ifdef Q_WS_QWS
+    QWSGLWindowSurface *wsurf;
+#elif !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL)
+    QGLWindowSurface *wsurf;
+#endif
+
+#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL)
+    QGLPixmapData *pixmapData;
+#endif
+    int previous_fbo;
+};
+
 // GL extension definitions
 class QGLExtensions {
 public:
@@ -298,7 +352,8 @@ public:
         StencilWrap             = 0x00000100,
         PackedDepthStencil      = 0x00000200,
         NVFloatBuffer           = 0x00000400,
-        PixelBufferObject       = 0x00000800
+        PixelBufferObject       = 0x00000800,
+        FramebufferBlit         = 0x00001000
     };
     Q_DECLARE_FLAGS(Extensions, Extension)
 
@@ -379,6 +434,16 @@ extern QOpenGLPaintEngine* qt_qgl_paint_engine();
 extern EGLDisplay qt_qgl_egl_display();
 #endif
 
+inline bool qt_gl_preferGL2Engine()
+{
+#if defined(QT_OPENGL_ES_2)
+    return true;
+#else
+    return (QGLFormat::openGLVersionFlags() & QGLFormat::OpenGL_Version_2_0)
+           && !qgetenv("QT_GL_USE_OPENGL2ENGINE").isEmpty();
+#endif
+}
+
 inline GLenum qt_gl_preferredTextureFormat()
 {
     return QSysInfo::ByteOrder == QSysInfo::BigEndian ? GL_RGBA : GL_BGRA;
@@ -386,12 +451,16 @@ inline GLenum qt_gl_preferredTextureFormat()
 
 inline GLenum qt_gl_preferredTextureTarget()
 {
+#if defined(QT_OPENGL_ES_2)
+    return GL_TEXTURE_2D;
+#else
     return (QGLExtensions::glExtensions & QGLExtensions::TextureRectangle)
+           && !qt_gl_preferGL2Engine()
            ? GL_TEXTURE_RECTANGLE_NV
            : GL_TEXTURE_2D;
+#endif
 }
 
-
 QT_END_NAMESPACE
 
 #endif // QGL_P_H