1 files changed, 134 insertions, 0 deletions
diff --git a/Source/WebCore/platform/graphics/android/rendering/ImagesManager.cpp b/Source/WebCore/platform/graphics/android/rendering/ImagesManager.cpp
new file mode 100644
index 0000000..8452503
--- /dev/null
+++ b/Source/WebCore/platform/graphics/android/rendering/ImagesManager.cpp
@@ -0,0 +1,134 @@
+/*
+ * Copyright 2011, The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#define LOG_TAG "ImagesManager"
+#define LOG_NDEBUG 1
+
+#include "config.h"
+#include "ImagesManager.h"
+
+#include "AndroidLog.h"
+#include "SkCanvas.h"
+#include "SkDevice.h"
+#include "SkRefCnt.h"
+#include "ImageTexture.h"
+
+namespace WebCore {
+
+ImagesManager* ImagesManager::instance()
+{
+    if (!gInstance)
+        gInstance = new ImagesManager();
+
+    return gInstance;
+}
+
+ImagesManager* ImagesManager::gInstance = 0;
+
+ImageTexture* ImagesManager::setImage(SkBitmapRef* imgRef)
+{
+    if (!imgRef)
+        return 0;
+
+    SkBitmap* bitmap = &imgRef->bitmap();
+    ImageTexture* image = 0;
+    SkBitmap* img = 0;
+    unsigned crc = 0;
+
+    img = ImageTexture::convertBitmap(bitmap);
+    crc = ImageTexture::computeCRC(img);
+
+    {
+        android::Mutex::Autolock lock(m_imagesLock);
+        if (m_images.contains(crc)) {
+            image = m_images.get(crc);
+            SkSafeRef(image);
+            return image;
+        }
+    }
+
+    // the image is not in the map, we add it
+
+    image = new ImageTexture(img, crc);
+
+    android::Mutex::Autolock lock(m_imagesLock);
+    m_images.set(crc, image);
+
+    return image;
+}
+
+ImageTexture* ImagesManager::retainImage(unsigned imgCRC)
+{
+    if (!imgCRC)
+        return 0;
+
+    android::Mutex::Autolock lock(m_imagesLock);
+    ImageTexture* image = 0;
+    if (m_images.contains(imgCRC)) {
+        image = m_images.get(imgCRC);
+        SkSafeRef(image);
+    }
+    return image;
+}
+
+void ImagesManager::releaseImage(unsigned imgCRC)
+{
+    if (!imgCRC)
+        return;
+
+    android::Mutex::Autolock lock(m_imagesLock);
+    if (m_images.contains(imgCRC)) {
+        ImageTexture* image = m_images.get(imgCRC);
+        if (image->getRefCnt() == 1)
+            m_images.remove(imgCRC);
+        SkSafeUnref(image);
+    }
+}
+
+int ImagesManager::nbTextures()
+{
+    android::Mutex::Autolock lock(m_imagesLock);
+    HashMap<unsigned, ImageTexture*>::iterator end = m_images.end();
+    int i = 0;
+    int nb = 0;
+    for (HashMap<unsigned, ImageTexture*>::iterator it = m_images.begin(); it != end; ++it) {
+        nb += it->second->nbTextures();
+        i++;
+    }
+    return nb;
+}
+
+bool ImagesManager::prepareTextures(GLWebViewState* state)
+{
+    bool ret = false;
+    android::Mutex::Autolock lock(m_imagesLock);
+    HashMap<unsigned, ImageTexture*>::iterator end = m_images.end();
+    for (HashMap<unsigned, ImageTexture*>::iterator it = m_images.begin(); it != end; ++it) {
+        ret |= it->second->prepareGL(state);
+    }
+    return ret;
+}
+
+} // namespace WebCore