Merge remote branch 'origin/4.7' into HEAD

Conflicts:
	examples/declarative/proxywidgets/proxywidgets.pro
	examples/declarative/widgets/mywidgets.pro
	examples/declarative/widgets/widgets.pro

8 files changed, 164 insertions, 42 deletions

diff --git a/src/opengl/opengl.pro b/src/opengl/opengl.pro
index ff42a49..9473343 100644
--- a/src/opengl/opengl.pro
+++ b/src/opengl/opengl.pro
@@ -116,6 +116,7 @@ mac {
     LIBS_PRIVATE += -framework AppKit -framework Carbon
 }
 win32:!wince*: {
+    DEFINES += QT_NO_EGL
     SOURCES += qgl_win.cpp \
 	       qglpixelbuffer_win.cpp
 }
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp
index 7aba25a..e56b149 100644
--- a/src/opengl/qgl.cpp
+++ b/src/opengl/qgl.cpp
@@ -2444,7 +2444,7 @@ QGLTexture *QGLContextPrivate::bindTexture(const QPixmap &pixmap, GLenum target,
     if (pd->classId() == QPixmapData::X11Class && pd->pixelType() == QPixmapData::PixmapType
         && xinfo && xinfo->screen() == pixmap.x11Info().screen())
     {
-        texture = bindTextureFromNativePixmap(pd, key, options);
+        texture = bindTextureFromNativePixmap(const_cast<QPixmap*>(&pixmap), key, options);
         if (texture) {
             texture->options |= QGLContext::MemoryManagedBindOption;
             texture->boundPixmap = pd;
diff --git a/src/opengl/qgl_egl_p.h b/src/opengl/qgl_egl_p.h
index 43793cd..85d7f32 100644
--- a/src/opengl/qgl_egl_p.h
+++ b/src/opengl/qgl_egl_p.h
@@ -53,6 +53,7 @@
 // We mean it.
 //
 
+#include <QtGui/private/qegl_p.h>
 #include <QtGui/private/qeglcontext_p.h>
 #include <QtGui/private/qeglproperties_p.h>
 
diff --git a/src/opengl/qgl_p.h b/src/opengl/qgl_p.h
index dc1e26e..1f28b08 100644
--- a/src/opengl/qgl_p.h
+++ b/src/opengl/qgl_p.h
@@ -361,7 +361,7 @@ public:
     quint32 gpm;
     int screen;
     QHash<QPixmapData*, QPixmap> boundPixmaps;
-    QGLTexture *bindTextureFromNativePixmap(QPixmapData*, const qint64 key,
+    QGLTexture *bindTextureFromNativePixmap(QPixmap*, const qint64 key,
                                             QGLContext::BindOptions options);
     static void destroyGlSurfaceForPixmap(QPixmapData*);
     static void unbindPixmapFromTexture(QPixmapData*);
diff --git a/src/opengl/qgl_x11.cpp b/src/opengl/qgl_x11.cpp
index 4fa1467..e1a202f 100644
--- a/src/opengl/qgl_x11.cpp
+++ b/src/opengl/qgl_x11.cpp
@@ -1671,7 +1671,7 @@ static bool qt_resolveTextureFromPixmap(QPaintDevice *paintDevice)
 #endif //defined(GLX_VERSION_1_3) && !defined(Q_OS_HPUX)
 
 
-QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmapData *pmd, const qint64 key,
+QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmap *pixmap, const qint64 key,
                                                            QGLContext::BindOptions options)
 {
 #if !defined(GLX_VERSION_1_3) || defined(Q_OS_HPUX)
@@ -1679,12 +1679,12 @@ QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmapData *pmd, con
 #else
     Q_Q(QGLContext);
 
-    Q_ASSERT(pmd->classId() == QPixmapData::X11Class);
+    QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(pixmap->data_ptr().data());
+    Q_ASSERT(pixmapData->classId() == QPixmapData::X11Class);
 
     if (!qt_resolveTextureFromPixmap(paintDevice))
         return 0;
 
-    QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(pmd);
     const QX11Info &x11Info = pixmapData->xinfo;
 
     // Store the configs (Can be static because configs aren't dependent on current context)
diff --git a/src/opengl/qgl_x11egl.cpp b/src/opengl/qgl_x11egl.cpp
index 0954e69..af0100b 100644
--- a/src/opengl/qgl_x11egl.cpp
+++ b/src/opengl/qgl_x11egl.cpp
@@ -354,7 +354,7 @@ void QGLWidgetPrivate::recreateEglSurface(bool force)
 }
 
 
-QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmapData* pd, const qint64 key,
+QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmap *pixmap, const qint64 key,
                                                            QGLContext::BindOptions options)
 {
     Q_Q(QGLContext);
@@ -363,10 +363,33 @@ QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmapData* pd, cons
     if (!(options & QGLContext::CanFlipNativePixmapBindOption))
         return 0;
 
-    Q_ASSERT(pd->classId() == QPixmapData::X11Class);
 
     static bool checkedForTFP = false;
     static bool haveTFP = false;
+    static bool checkedForEglImageTFP = false;
+    static bool haveEglImageTFP = false;
+
+
+    if (!checkedForEglImageTFP) {
+        checkedForEglImageTFP = true;
+
+        // We need to be able to create an EGLImage from a native pixmap, which was split
+        // into a seperate EGL extension, EGL_KHR_image_pixmap. It is possible to have
+        // eglCreateImageKHR & eglDestroyImageKHR without support for pixmaps, so we must
+        // check we have the EGLImage from pixmap functionality.
+        if (QEgl::hasExtension("EGL_KHR_image") || QEgl::hasExtension("EGL_KHR_image_pixmap")) {
+            Q_ASSERT(eglCreateImageKHR);
+            Q_ASSERT(eglDestroyImageKHR);
+
+            // Being able to create an EGLImage from a native pixmap is also pretty useless
+            // without the ability to bind that EGLImage as a texture, which is provided by
+            // the GL_OES_EGL_image extension, which we try to resolve here:
+            haveEglImageTFP = qt_resolve_eglimage_gl_extensions(q);
+
+            if (haveEglImageTFP)
+                qDebug("Found EGL_KHR_image_pixmap & GL_OES_EGL_image extensions (preferred method)!");
+        }
+    }
 
     if (!checkedForTFP) {
         // Check for texture_from_pixmap egl extension
@@ -379,61 +402,111 @@ QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmapData* pd, cons
         }
     }
 
-    if (!haveTFP)
+    if (!haveTFP && !haveEglImageTFP)
         return 0;
 
-    QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(pd);
 
+    QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(pixmap->data_ptr().data());
+    Q_ASSERT(pixmapData->classId() == QPixmapData::X11Class);
     bool hasAlpha = pixmapData->hasAlphaChannel();
+    bool pixmapHasValidSurface = false;
+    bool textureIsBound = false;
+    GLuint textureId;
+    glGenTextures(1, &textureId);
+    glBindTexture(GL_TEXTURE_2D, textureId);
 
-    // Check to see if the surface is still valid
-    if (pixmapData->gl_surface &&
-        hasAlpha != (pixmapData->flags & QX11PixmapData::GlSurfaceCreatedWithAlpha))
+    if (haveTFP && pixmapData->gl_surface &&
+        hasAlpha == (pixmapData->flags & QX11PixmapData::GlSurfaceCreatedWithAlpha))
     {
-        // Surface is invalid!
-        destroyGlSurfaceForPixmap(pixmapData);
+        pixmapHasValidSurface = true;
+    }
+
+    // If we already have a valid EGL surface for the pixmap, we should use it
+    if (pixmapHasValidSurface) {
+        EGLBoolean success;
+        success = eglBindTexImage(QEgl::display(), (EGLSurface)pixmapData->gl_surface, EGL_BACK_BUFFER);
+        if (success == EGL_FALSE) {
+            qWarning() << "eglBindTexImage() failed:" << QEgl::errorString();
+            eglDestroySurface(QEgl::display(), (EGLSurface)pixmapData->gl_surface);
+            pixmapData->gl_surface = (void*)EGL_NO_SURFACE;
+        } else
+            textureIsBound = true;
     }
 
-    if (pixmapData->gl_surface == 0) {
-        EGLConfig config = QEgl::defaultConfig(QInternal::Pixmap,
-                                               QEgl::OpenGL,
-                                               hasAlpha ? QEgl::Translucent : QEgl::NoOptions);
+    // If the pixmap doesn't already have a valid surface, try binding it via EGLImage
+    // first, as going through EGLImage should be faster and better supported:
+    if (!textureIsBound && haveEglImageTFP) {
+        Q_ASSERT(eglCreateImageKHR);
 
-        QPixmap tmpPixmap(pixmapData); //###
-        pixmapData->gl_surface = (void*)QEgl::createSurface(&tmpPixmap, config);
-        if (pixmapData->gl_surface == (void*)EGL_NO_SURFACE) {
-            haveTFP = false;
-            return 0;
-        }
+        EGLImageKHR eglImage;
+
+        EGLint attribs[] = {
+            EGL_IMAGE_PRESERVED_KHR, EGL_TRUE,
+            EGL_NONE
+        };
+        eglImage = eglCreateImageKHR(QEgl::display(), EGL_NO_CONTEXT, EGL_NATIVE_PIXMAP_KHR,
+                                     (EGLClientBuffer)QEgl::nativePixmap(pixmap), attribs);
+
+        QGLContext* ctx = q;
+        glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, eglImage);
+
+        GLint err = glGetError();
+        if (err == GL_NO_ERROR)
+            textureIsBound = true;
+
+        // Once the egl image is bound, the texture becomes a new sibling image and we can safely
+        // destroy the EGLImage we created for the pixmap:
+        if (eglImage != EGL_NO_IMAGE_KHR)
+            eglDestroyImageKHR(QEgl::display(), eglImage);
     }
 
-    Q_ASSERT(pixmapData->gl_surface);
+    if (!textureIsBound && haveTFP) {
+        // Check to see if the surface is still valid
+        if (pixmapData->gl_surface &&
+            hasAlpha != (pixmapData->flags & QX11PixmapData::GlSurfaceCreatedWithAlpha))
+        {
+            // Surface is invalid!
+            destroyGlSurfaceForPixmap(pixmapData);
+        }
 
-    GLuint textureId;
-    glGenTextures(1, &textureId);
-    glBindTexture(GL_TEXTURE_2D, textureId);
+        if (pixmapData->gl_surface == 0) {
+            EGLConfig config = QEgl::defaultConfig(QInternal::Pixmap,
+                                                   QEgl::OpenGL,
+                                                   hasAlpha ? QEgl::Translucent : QEgl::NoOptions);
 
-    // bind the egl pixmap surface to a texture
-    EGLBoolean success;
-    success = eglBindTexImage(eglContext->display(), (EGLSurface)pixmapData->gl_surface, EGL_BACK_BUFFER);
-    if (success == EGL_FALSE) {
-        qWarning() << "eglBindTexImage() failed:" << QEgl::errorString();
-        eglDestroySurface(eglContext->display(), (EGLSurface)pixmapData->gl_surface);
-        pixmapData->gl_surface = (void*)EGL_NO_SURFACE;
-        haveTFP = false;
-        return 0;
+            pixmapData->gl_surface = (void*)QEgl::createSurface(pixmap, config);
+            if (pixmapData->gl_surface == (void*)EGL_NO_SURFACE)
+                return false;
+        }
+
+        EGLBoolean success;
+        success = eglBindTexImage(QEgl::display(), (EGLSurface)pixmapData->gl_surface, EGL_BACK_BUFFER);
+        if (success == EGL_FALSE) {
+            qWarning() << "eglBindTexImage() failed:" << QEgl::errorString();
+            eglDestroySurface(QEgl::display(), (EGLSurface)pixmapData->gl_surface);
+            pixmapData->gl_surface = (void*)EGL_NO_SURFACE;
+            haveTFP = false; // If TFP isn't working, disable it's use
+        } else
+            textureIsBound = true;
     }
 
-    QGLTexture *texture = new QGLTexture(q, textureId, GL_TEXTURE_2D, options);
-    pixmapData->flags |= QX11PixmapData::InvertedWhenBoundToTexture;
+    QGLTexture *texture = 0;
 
-    // We assume the cost of bound pixmaps is zero
-    QGLTextureCache::instance()->insert(q, key, texture, 0);
+    if (textureIsBound) {
+        texture = new QGLTexture(q, textureId, GL_TEXTURE_2D, options);
+        pixmapData->flags |= QX11PixmapData::InvertedWhenBoundToTexture;
+
+        // We assume the cost of bound pixmaps is zero
+        QGLTextureCache::instance()->insert(q, key, texture, 0);
+
+        glBindTexture(GL_TEXTURE_2D, textureId);
+    } else
+        glDeleteTextures(1, &textureId);
 
-    glBindTexture(GL_TEXTURE_2D, textureId);
     return texture;
 }
 
+
 void QGLContextPrivate::destroyGlSurfaceForPixmap(QPixmapData* pmd)
 {
     Q_ASSERT(pmd->classId() == QPixmapData::X11Class);
diff --git a/src/opengl/qglextensions.cpp b/src/opengl/qglextensions.cpp
index 02d5501..ef3c4cd 100644
--- a/src/opengl/qglextensions.cpp
+++ b/src/opengl/qglextensions.cpp
@@ -222,6 +222,17 @@ bool qt_resolve_buffer_extensions(QGLContext *ctx)
 #endif
 }
 
+#ifndef QT_NO_EGL
+bool qt_resolve_eglimage_gl_extensions(QGLContext *ctx)
+{
+    if (glEGLImageTargetTexture2DOES || glEGLImageTargetRenderbufferStorageOES)
+        return true;
+    glEGLImageTargetTexture2DOES = (_glEGLImageTargetTexture2DOES) ctx->getProcAddress(QLatin1String("glEGLImageTargetTexture2DOES"));
+    glEGLImageTargetRenderbufferStorageOES = (_glEGLImageTargetRenderbufferStorageOES) ctx->getProcAddress(QLatin1String("glEGLImageTargetRenderbufferStorageOES"));
+    return glEGLImageTargetTexture2DOES && glEGLImageTargetRenderbufferStorageOES;
+}
+#endif
+
 bool qt_resolve_glsl_extensions(QGLContext *ctx)
 {
     // Geometry shaders are optional...
diff --git a/src/opengl/qglextensions_p.h b/src/opengl/qglextensions_p.h
index f6926f3..7597b33 100644
--- a/src/opengl/qglextensions_p.h
+++ b/src/opengl/qglextensions_p.h
@@ -68,6 +68,11 @@
 # define APIENTRYP *
 #endif
 
+#ifndef QT_NO_EGL
+// Needed for EGLImageKHR definition:
+#include <QtGui/private/qegl_p.h>
+#endif
+
 #include <QtCore/qglobal.h>
 
 #ifndef GL_ARB_vertex_buffer_object
@@ -210,6 +215,14 @@ typedef void (APIENTRY *_glFramebufferTextureFaceEXT)(GLenum target, GLenum atta
 typedef void (APIENTRY *_glCompressedTexImage2DARB) (GLenum, GLint, GLenum, GLsizei,
                                                      GLsizei, GLint, GLsizei, const GLvoid *);
 
+#ifndef QT_NO_EGL
+// OES_EGL_image
+// Note: We define these to take EGLImage whereas spec says they take a new GLeglImageOES
+//       type, which the EGL image should be cast to.
+typedef void (APIENTRY *_glEGLImageTargetTexture2DOES) (GLenum, EGLImageKHR);
+typedef void (APIENTRY *_glEGLImageTargetRenderbufferStorageOES) (GLenum, EGLImageKHR);
+#endif
+
 QT_BEGIN_NAMESPACE
 
 struct QGLExtensionFuncs
@@ -327,6 +340,12 @@ struct QGLExtensionFuncs
         // Texture compression
         qt_glCompressedTexImage2DARB = 0;
 #endif
+
+#ifndef QT_NO_EGL
+        // OES_EGL_image
+        qt_glEGLImageTargetTexture2DOES = 0;
+        qt_glEGLImageTargetRenderbufferStorageOES = 0;
+#endif
     }
 
 
@@ -447,6 +466,13 @@ struct QGLExtensionFuncs
     // Texture compression
     _glCompressedTexImage2DARB qt_glCompressedTexImage2DARB;
 #endif
+
+#ifndef QT_NO_EGL
+    // OES_EGL_image
+    _glEGLImageTargetTexture2DOES qt_glEGLImageTargetTexture2DOES;
+    _glEGLImageTargetRenderbufferStorageOES qt_glEGLImageTargetRenderbufferStorageOES;
+#endif
+
 };
 
 
@@ -839,6 +865,12 @@ struct QGLExtensionFuncs
 #define glCompressedTexImage2D QGLContextPrivate::extensionFuncs(ctx).qt_glCompressedTexImage2DARB
 #endif
 
+#ifndef QT_NO_EGL
+// OES_EGL_image
+#define glEGLImageTargetTexture2DOES QGLContextPrivate::extensionFuncs(ctx).qt_glEGLImageTargetTexture2DOES
+#define glEGLImageTargetRenderbufferStorageOES QGLContextPrivate::extensionFuncs(ctx).qt_glEGLImageTargetRenderbufferStorageOES
+#endif
+
 extern bool qt_resolve_framebufferobject_extensions(QGLContext *ctx);
 bool qt_resolve_buffer_extensions(QGLContext *ctx);
 
@@ -849,6 +881,10 @@ bool qt_resolve_frag_program_extensions(QGLContext *ctx);
 
 bool qt_resolve_glsl_extensions(QGLContext *ctx);
 
+#ifndef QT_NO_EGL
+bool qt_resolve_eglimage_gl_extensions(QGLContext *ctx);
+#endif
+
 QT_END_NAMESPACE
 
 #endif // QGL_EXTENSIONS_P_H