Revert "Fix memory leaks in OpenVG and OpenGL resource pools"

This reverts commit 8752faf0564bed86396b01529dc8ef5064150f4c.
Also Revert "Fix def files"
This reverts commit d2a3b9ee8c9329cac96b5e509df0e6a69dbef91c.
This was found to cause a crash in QMLGallery app.
It is not necessary to delete these resource pools at app
exit, as the OS should automatically release the resources
at this point.

Reviewed-by: Jani Hautakangas

5 files changed, 21 insertions, 6 deletions

diff --git a/src/opengl/qgltexturepool.cpp b/src/opengl/qgltexturepool.cpp
index d19b1dbd2d..9ad66f2c3a 100644
--- a/src/opengl/qgltexturepool.cpp
+++ b/src/opengl/qgltexturepool.cpp
@@ -47,7 +47,7 @@ QT_BEGIN_NAMESPACE
 
 Q_OPENGL_EXPORT extern QGLWidget* qt_gl_share_widget();
 
-Q_GLOBAL_STATIC(QGLTexturePool, qt_gl_texture_pool)
+static QGLTexturePool *qt_gl_texture_pool = 0;
 
 class QGLTexturePoolPrivate
 {
@@ -69,7 +69,9 @@ QGLTexturePool::~QGLTexturePool()
 
 QGLTexturePool *QGLTexturePool::instance()
 {
-    return qt_gl_texture_pool();
+    if (!qt_gl_texture_pool)
+        qt_gl_texture_pool = new QGLTexturePool();
+    return qt_gl_texture_pool;
 }
 
 GLuint QGLTexturePool::createTexture(GLenum target,
diff --git a/src/openvg/qvgimagepool.cpp b/src/openvg/qvgimagepool.cpp
index cd1caf4421..3a187b0112 100644
--- a/src/openvg/qvgimagepool.cpp
+++ b/src/openvg/qvgimagepool.cpp
@@ -44,7 +44,7 @@
 
 QT_BEGIN_NAMESPACE
 
-Q_GLOBAL_STATIC(QVGImagePool, qt_vg_image_pool)
+static QVGImagePool *qt_vg_image_pool = 0;
 
 class QVGImagePoolPrivate
 {
@@ -66,7 +66,16 @@ QVGImagePool::~QVGImagePool()
 
 QVGImagePool *QVGImagePool::instance()
 {
-    return qt_vg_image_pool();
+    if (!qt_vg_image_pool)
+        qt_vg_image_pool = new QVGImagePool();
+    return qt_vg_image_pool;
+}
+
+void QVGImagePool::setImagePool(QVGImagePool *pool)
+{
+    if (qt_vg_image_pool != pool)
+        delete qt_vg_image_pool;
+    qt_vg_image_pool = pool;
 }
 
 VGImage QVGImagePool::createTemporaryImage(VGImageFormat format,
diff --git a/src/openvg/qvgimagepool_p.h b/src/openvg/qvgimagepool_p.h
index e4fd4e10da..07c57bf44a 100644
--- a/src/openvg/qvgimagepool_p.h
+++ b/src/openvg/qvgimagepool_p.h
@@ -69,6 +69,10 @@ public:
 
     static QVGImagePool *instance();
 
+    // This function can be used from system-specific graphics system
+    // plugins to alter the image allocation strategy.
+    static void setImagePool(QVGImagePool *pool);
+
     // Create a new VGImage from the pool with the specified parameters
     // that is not associated with a pixmap.  The VGImage is returned to
     // the pool when releaseImage() is called.
diff --git a/src/s60installs/bwins/QtOpenVGu.def b/src/s60installs/bwins/QtOpenVGu.def
index dc1ddceb1e..547931ea76 100644
--- a/src/s60installs/bwins/QtOpenVGu.def
+++ b/src/s60installs/bwins/QtOpenVGu.def
@@ -159,7 +159,7 @@ EXPORTS
 	?hibernate@QVGImagePool@@UAEXXZ @ 158 NONAME ; void QVGImagePool::hibernate(void)
 	?qt_vg_destroy_context@@YAXPAVQEglContext@@H@Z @ 159 NONAME ; void qt_vg_destroy_context(class QEglContext *, int)
 	??0QVGImagePool@@QAE@XZ @ 160 NONAME ; QVGImagePool::QVGImagePool(void)
-	?setImagePool@QVGImagePool@@SAXPAV1@@Z @ 161 NONAME ABSENT ; void QVGImagePool::setImagePool(class QVGImagePool *)
+	?setImagePool@QVGImagePool@@SAXPAV1@@Z @ 161 NONAME ; void QVGImagePool::setImagePool(class QVGImagePool *)
 	?pixmapLRU@QVGImagePool@@IAEPAVQVGPixmapData@@XZ @ 162 NONAME ; class QVGPixmapData * QVGImagePool::pixmapLRU(void)
 	?qt_vg_create_context@@YAPAVQEglContext@@PAVQPaintDevice@@H@Z @ 163 NONAME ; class QEglContext * qt_vg_create_context(class QPaintDevice *, int)
 	?reclaimImages@QVGPixmapData@@UAEXXZ @ 164 NONAME ; void QVGPixmapData::reclaimImages(void)
diff --git a/src/s60installs/eabi/QtOpenVGu.def b/src/s60installs/eabi/QtOpenVGu.def
index f87c71d073..a66df98169 100644
--- a/src/s60installs/eabi/QtOpenVGu.def
+++ b/src/s60installs/eabi/QtOpenVGu.def
@@ -176,7 +176,7 @@ EXPORTS
 	_ZN12QVGImagePool11detachImageEP13QVGPixmapData @ 175 NONAME
 	_ZN12QVGImagePool12reclaimSpaceE13VGImageFormatllP13QVGPixmapData @ 176 NONAME
 	_ZN12QVGImagePool12releaseImageEP13QVGPixmapDatam @ 177 NONAME
-	_ZN12QVGImagePool12setImagePoolEPS_ @ 178 NONAME ABSENT
+	_ZN12QVGImagePool12setImagePoolEPS_ @ 178 NONAME
 	_ZN12QVGImagePool13removeFromLRUEP13QVGPixmapData @ 179 NONAME
 	_ZN12QVGImagePool15moveToHeadOfLRUEP13QVGPixmapData @ 180 NONAME
 	_ZN12QVGImagePool20createImageForPixmapE13VGImageFormatllmP13QVGPixmapData @ 181 NONAME