[Android] Fixed memory leak when loading asset files

include/SFML/Graphics/Font.hpp

@@ -305,6 +305,9 @@ private :
     Info                       m_info;        ///< Information about the font
     mutable PageTable          m_pages;       ///< Table containing the glyphs pages by character size
     mutable std::vector<Uint8> m_pixelBuffer; ///< Pixel buffer holding a glyph's pixels before being written to the texture
+    #ifdef SFML_SYSTEM_ANDROID
+    void*                      m_stream; ///< Asset file streamer (if loaded from file)
+    #endif
 };
 
 } // namespace sf

include/SFML/Graphics/Image.hpp

@@ -55,6 +55,12 @@ public :
     ////////////////////////////////////////////////////////////
     Image();
 
+    ////////////////////////////////////////////////////////////
+    /// \brief Destructor
+    ///
+    ////////////////////////////////////////////////////////////
+    ~Image();
+
     ////////////////////////////////////////////////////////////
     /// \brief Create the image and fill it with a unique color
     ///
@@ -259,6 +265,9 @@ private :
     ////////////////////////////////////////////////////////////
     Vector2u           m_size;   ///< Image size
     std::vector<Uint8> m_pixels; ///< Pixels of the image
+    #ifdef SFML_SYSTEM_ANDROID
+    void*              m_stream; ///< Asset file streamer (if loaded from file)
+    #endif
 };
 
 } // namespace sf

src/SFML/Audio/SoundFile.cpp

@@ -27,8 +27,7 @@
 ////////////////////////////////////////////////////////////
 #include <SFML/Audio/SoundFile.hpp>
 #ifdef SFML_SYSTEM_ANDROID
-    #include <SFML/System/Android/Activity.hpp>
-    #include <SFML/System/Lock.hpp>
+    #include <SFML/System/Android/ResourceStream.hpp>
 #endif
 #include <SFML/System/InputStream.hpp>
 #include <SFML/System/Err.hpp>
@@ -59,7 +58,11 @@ m_sampleCount (0),
 m_channelCount(0),
 m_sampleRate  (0)
 {
+    #ifdef SFML_SYSTEM_ANDROID
 
+    m_resourceStream = NULL;
+
+    #endif
 }
 
 
@@ -68,6 +71,13 @@ SoundFile::~SoundFile()
 {
     if (m_file)
         sf_close(m_file);
+
+    #ifdef SFML_SYSTEM_ANDROID
+
+        if (m_resourceStream)
+            delete (priv::ResourceStream*)m_resourceStream;
+
+    #endif
 }
 
 
@@ -118,39 +128,11 @@ bool SoundFile::openRead(const std::string& filename)
 
     #else
 
-    priv::ActivityStates* states = priv::getActivity(NULL);
-    Lock lock(states->mutex);
+    if (m_resourceStream)
+        delete (priv::ResourceStream*)m_resourceStream;
 
-    // Open the file
-    AAsset* file = NULL;
-    file = AAssetManager_open(states->activity->assetManager, filename.c_str(), AASSET_MODE_UNKNOWN);
-
-    if (!file)
-    {
-        // File not found, abording...
-        err() << "Failed to load sound \"" << filename << "\" (couldn't find it)" << std::endl;
-        return false;
-    }
-
-    // Copy into memory
-    off_t size = AAsset_getLength(file);
-    void* data = malloc(size);
-    int status = AAsset_read(file, data, size);
-
-    if (status <= 0)
-    {
-        // Something went wrong while we were copying, reading error...
-        err() << "Failed to load sound \"" << filename << "\" (couldn't read it)" << std::endl;
-        return false;
-    }
-
-    // Load from our fresh memory
-    bool ret = openRead(data, size);
-
-    // Close the file
-    AAsset_close(file);
-
-    return ret;
+    m_resourceStream = new priv::ResourceStream(filename);
+    return openRead(*(priv::ResourceStream*)m_resourceStream);
 
     #endif
 }

src/SFML/Audio/SoundFile.hpp

@@ -218,6 +218,9 @@ private :
     std::size_t  m_sampleCount;  ///< Total number of samples in the file
     unsigned int m_channelCount; ///< Number of channels used by the sound
     unsigned int m_sampleRate;   ///< Number of samples per second
+    #ifdef SFML_SYSTEM_ANDROID
+    void*        m_resourceStream; ///< Asset file streamer (if loaded from file)
+    #endif
 };
 
 } // namespace priv

src/SFML/Graphics/Font.cpp

@@ -28,8 +28,7 @@
 #include <SFML/Graphics/Font.hpp>
 #include <SFML/Graphics/GLCheck.hpp>
 #ifdef SFML_SYSTEM_ANDROID
-    #include <SFML/System/Android/Activity.hpp>
-    #include <SFML/System/Lock.hpp>
+    #include <SFML/System/Android/ResourceStream.hpp>
 #endif
 #include <SFML/System/InputStream.hpp>
 #include <SFML/System/Err.hpp>
@@ -88,6 +87,10 @@ m_info       (copy.m_info),
 m_pages      (copy.m_pages),
 m_pixelBuffer(copy.m_pixelBuffer)
 {
+    #ifdef SFML_SYSTEM_ANDROID
+        m_stream = NULL;
+    #endif
+
     // Note: as FreeType doesn't provide functions for copying/cloning,
     // we must share all the FreeType pointers
 
@@ -100,6 +103,13 @@ m_pixelBuffer(copy.m_pixelBuffer)
 Font::~Font()
 {
     cleanup();
+
+    #ifdef SFML_SYSTEM_ANDROID
+
+    if (m_stream)
+        delete (priv::ResourceStream*)m_stream;
+
+    #endif
 }
 
 
@@ -149,39 +159,11 @@ bool Font::loadFromFile(const std::string& filename)
 
     #else
 
-    priv::ActivityStates* states = priv::getActivity(NULL);
-    Lock lock(states->mutex);
+    if (m_stream)
+        delete (priv::ResourceStream*)m_stream;
 
-    // Open the file
-    AAsset* file = NULL;
-    file = AAssetManager_open(states->activity->assetManager, filename.c_str(), AASSET_MODE_UNKNOWN);
-
-    if (!file)
-    {
-        // File not found, abording...
-        err() << "Failed to load font \"" << filename << "\" (couldn't find it)" << std::endl;
-        return false;
-    }
-
-    // Copy into memory
-    off_t size = AAsset_getLength(file);
-    void* data = malloc(size);
-    int status = AAsset_read(file, data, size);
-
-    if (status <= 0)
-    {
-        // Something went wrong while we were copying, reading error...
-        err() << "Failed to load font \"" << filename << "\" (couldn't read it)" << std::endl;
-        return false;
-    }
-
-    // Load from our fresh memory
-    bool ret = loadFromMemory(data, size);
-
-    // Close the file
-    AAsset_close(file);
-
-    return ret;
+    m_stream = new priv::ResourceStream(filename);
+    return loadFromStream(*(priv::ResourceStream*)m_stream);
 
     #endif
 }

src/SFML/Graphics/Image.cpp

@@ -27,11 +27,10 @@
 ////////////////////////////////////////////////////////////
 #include <SFML/Graphics/Image.hpp>
 #include <SFML/Graphics/ImageLoader.hpp>
-#ifdef SFML_SYSTEM_ANDROID
-    #include <SFML/System/Android/Activity.hpp>
-    #include <SFML/System/Lock.hpp>
-#endif
 #include <SFML/System/Err.hpp>
+#ifdef SFML_SYSTEM_ANDROID
+    #include <SFML/System/Android/ResourceStream.hpp>
+#endif
 #include <algorithm>
 #include <cstring>
 
@@ -42,7 +41,23 @@ namespace sf
 Image::Image() :
 m_size(0, 0)
 {
+    #ifdef SFML_SYSTEM_ANDROID
 
+    m_stream = NULL;
+
+    #endif
+}
+
+
+////////////////////////////////////////////////////////////
+Image::~Image()
+{
+    #ifdef SFML_SYSTEM_ANDROID
+
+        if (m_stream)
+            delete (priv::ResourceStream*)m_stream;
+
+    #endif
 }
 
 
@@ -108,43 +123,15 @@ bool Image::loadFromFile(const std::string& filename)
 {
     #ifndef SFML_SYSTEM_ANDROID
 
-    return priv::ImageLoader::getInstance().loadImageFromFile(filename, m_pixels, m_size);
+        return priv::ImageLoader::getInstance().loadImageFromFile(filename, m_pixels, m_size);
 
     #else
 
-    priv::ActivityStates* states = priv::getActivity(NULL);
-    Lock lock(states->mutex);
+        if (m_stream)
+            delete (priv::ResourceStream*)m_stream;
 
-    // Open the file
-    AAsset* file = NULL;
-    file = AAssetManager_open(states->activity->assetManager, filename.c_str(), AASSET_MODE_UNKNOWN);
-
-    if (!file)
-    {
-        // File not found, abording...
-        err() << "Failed to load image \"" << filename << "\" (couldn't find it)" << std::endl;
-        return false;
-    }
-
-    // Copy into memory
-    off_t size = AAsset_getLength(file);
-    void* data = malloc(size);
-    int status = AAsset_read(file, data, size);
-
-    if (status <= 0)
-    {
-        // Something went wrong while we were copying, reading error...
-        err() << "Failed to load image \"" << filename << "\" (couldn't read it)" << std::endl;
-        return false;
-    }
-
-    // Load from our fresh memory
-    bool ret = loadFromMemory(data, size);
-
-    // Close the file
-    AAsset_close(file);
-
-    return ret;
+        m_stream = new priv::ResourceStream(filename);
+        return loadFromStream(*(priv::ResourceStream*)m_stream);
 
     #endif
 }

src/SFML/System/Android/ResourceStream.cpp

@@ -0,0 +1,85 @@
+////////////////////////////////////////////////////////////
+//
+// SFML - Simple and Fast Multimedia Library
+// Copyright (C) 2013 Jonathan De Wachter (dewachter.jonathan@gmail.com)
+//
+// This software is provided 'as-is', without any express or implied warranty.
+// In no event will the authors be held liable for any damages arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it freely,
+// subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented;
+//    you must not claim that you wrote the original software.
+//    If you use this software in a product, an acknowledgment
+//    in the product documentation would be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such,
+//    and must not be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source distribution.
+//
+////////////////////////////////////////////////////////////
+
+
+////////////////////////////////////////////////////////////
+// Headers
+////////////////////////////////////////////////////////////
+#include <SFML/System/Android/ResourceStream.hpp>
+#include <SFML/System/Android/Activity.hpp>
+#include <SFML/System/Lock.hpp>
+
+
+namespace sf
+{
+namespace priv
+{
+
+////////////////////////////////////////////////////////////
+ResourceStream::ResourceStream(const std::string& filename) :
+m_file (NULL)
+{
+    ActivityStates* states = getActivity(NULL);
+    Lock(states->mutex);
+    m_file = AAssetManager_open(states->activity->assetManager, filename.c_str(), AASSET_MODE_UNKNOWN);
+}
+
+
+////////////////////////////////////////////////////////////
+ResourceStream::~ResourceStream()
+{
+    AAsset_close(m_file);
+}
+
+
+////////////////////////////////////////////////////////////
+Int64 ResourceStream::read(void *data, Int64 size)
+{
+    return AAsset_read(m_file, data, size);
+}
+
+
+////////////////////////////////////////////////////////////
+Int64 ResourceStream::seek(Int64 position)
+{
+    AAsset_seek(m_file, position, SEEK_SET);
+}
+
+
+////////////////////////////////////////////////////////////
+Int64 ResourceStream::tell()
+{
+    return getSize() - AAsset_getRemainingLength(m_file);
+}
+
+
+////////////////////////////////////////////////////////////
+Int64 ResourceStream::getSize()
+{
+    return AAsset_getLength(m_file);
+}
+
+
+} // namespace priv
+} // namespace sf

src/SFML/System/Android/ResourceStream.hpp

@@ -0,0 +1,113 @@
+////////////////////////////////////////////////////////////
+//
+// SFML - Simple and Fast Multimedia Library
+// Copyright (C) 2013 Jonathan De Wachter (dewachter.jonathan@gmail.com)
+//
+// This software is provided 'as-is', without any express or implied warranty.
+// In no event will the authors be held liable for any damages arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it freely,
+// subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented;
+//    you must not claim that you wrote the original software.
+//    If you use this software in a product, an acknowledgment
+//    in the product documentation would be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such,
+//    and must not be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source distribution.
+//
+////////////////////////////////////////////////////////////
+
+#ifndef SFML_RESOURCESTREAM_HPP
+#define SFML_RESOURCESTREAM_HPP
+
+////////////////////////////////////////////////////////////
+// Headers
+////////////////////////////////////////////////////////////
+#include <SFML/System/Export.hpp>
+#include <SFML/System/InputStream.hpp>
+#include <android/asset_manager.h>
+#include <string>
+
+
+namespace sf
+{
+namespace priv
+{
+////////////////////////////////////////////////////////////
+/// \brief Read from Android asset files
+///
+////////////////////////////////////////////////////////////
+class SFML_SYSTEM_API ResourceStream : public InputStream
+{
+public :
+
+    ////////////////////////////////////////////////////////////
+    /// \brief Default constructor
+    ///
+    /// \param filename Filename of the asset
+    ///
+    ////////////////////////////////////////////////////////////
+    ResourceStream(const std::string& filename);
+
+    ////////////////////////////////////////////////////////////
+    /// \brief Destructor
+    ///
+    ////////////////////////////////////////////////////////////
+    ~ResourceStream();
+
+    ////////////////////////////////////////////////////////////
+    /// \brief Read data from the asset
+    ///
+    /// \param data Buffer where the asset data is copied
+    /// \param size Number of bytes read
+    ///
+    /// \return The number of bytes actually read, or -1 on error
+    ///
+    ////////////////////////////////////////////////////////////
+    Int64 read(void *data, Int64 size);
+
+    ////////////////////////////////////////////////////////////
+    /// \brief Change the current reading position in the asset file
+    ///
+    /// \param position The position to seek to, from the beginning
+    ///
+    /// \return The position actually sought to, or -1 on error
+    ///
+    ////////////////////////////////////////////////////////////
+    Int64 seek(Int64 position);
+
+    ////////////////////////////////////////////////////////////
+    /// \brief Get the current reading position in the asset file
+    ///
+    /// \return The current position, or -1 on error.
+    ///
+    ////////////////////////////////////////////////////////////
+    Int64 tell();
+
+    ////////////////////////////////////////////////////////////
+    /// \brief Return the size of the asset file
+    ///
+    /// \return The total number of bytes available in the asset, or -1 on error
+    ///
+    ////////////////////////////////////////////////////////////
+    Int64 getSize();
+
+private :
+
+    ////////////////////////////////////////////////////////////
+    // Member data
+    ////////////////////////////////////////////////////////////
+    AAsset* m_file; ///< The asset file to read
+};
+
+} // namespace priv
+
+} // namespace sf
+
+
+#endif // SFML_RESOURCESTREAM_HPP

src/SFML/System/CMakeLists.txt

@@ -71,6 +71,8 @@ else()
         set(PLATFORM_SRC ${PLATFORM_SRC}
             ${SRCROOT}/Android/Activity.hpp
             ${SRCROOT}/Android/Activity.cpp
+            ${SRCROOT}/Android/ResourceStream.cpp
+            ${SRCROOT}/Android/ResourceStream.cpp
         )
     endif()
 
@@ -91,7 +93,7 @@ endif()
 
 # pthread is implicitly linked by the NDK
 if(SFML_OS_ANDROID)
-    set(SYSTEM_EXT_LIBS "")
+    set(SYSTEM_EXT_LIBS android)
 endif()
 
 # define the sfml-system target