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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #define LOG_TAG "MediaLayer"
     18 #define LOG_NDEBUG 1
     19 
     20 #include "config.h"
     21 #include "MediaLayer.h"
     22 
     23 #include "AndroidLog.h"
     24 #include "MediaTexture.h"
     25 #include "TilesManager.h"
     26 
     27 #if USE(ACCELERATED_COMPOSITING)
     28 
     29 namespace WebCore {
     30 
     31 MediaLayer::MediaLayer(jobject webViewRef, jobject webViewCoreRef) : LayerAndroid((RenderLayer*) NULL)
     32 {
     33     m_mediaTexture = new MediaTexture(webViewRef, webViewCoreRef);
     34     m_mediaTexture->incStrong(this);
     35 
     36     m_isCopy = false;
     37     m_outlineSize = 0;
     38     ALOGV("Creating Media Layer %p", this);
     39 }
     40 
     41 MediaLayer::MediaLayer(const MediaLayer& layer) : LayerAndroid(layer)
     42 {
     43     m_mediaTexture = layer.m_mediaTexture;
     44     m_mediaTexture->incStrong(this);
     45 
     46     m_isCopy = true;
     47     m_outlineSize = layer.m_outlineSize;
     48     ALOGV("Creating Media Layer Copy %p -> %p", &layer, this);
     49 }
     50 
     51 MediaLayer::~MediaLayer()
     52 {
     53     ALOGV("Deleting Media Layer");
     54     m_mediaTexture->decStrong(this);
     55 }
     56 
     57 bool MediaLayer::drawGL(bool layerTilesDisabled)
     58 {
     59     FloatRect clippingRect = TilesManager::instance()->shader()->rectInInvViewCoord(drawClip());
     60     TilesManager::instance()->shader()->clip(clippingRect);
     61 
     62     // when the plugin gains focus webkit applies an outline to the
     63     // widget, which causes the layer to expand to accommodate the
     64     // outline. Therefore, we shrink the rect by the outline's dimensions
     65     // to ensure the plugin does not draw outside of its bounds.
     66     SkRect mediaBounds;
     67     mediaBounds.set(0, 0, getSize().width(), getSize().height());
     68     mediaBounds.inset(m_outlineSize, m_outlineSize);
     69 
     70     // check to see if we need to create a content or video texture
     71     m_mediaTexture->initNativeWindowIfNeeded();
     72 
     73     // the layer's shader draws the content inverted so we must undo
     74     // that change in the transformation matrix
     75     TransformationMatrix m = m_drawTransform;
     76     if (!m_mediaTexture->isContentInverted()) {
     77         m.flipY();
     78         m.translate(0, -getSize().height());
     79     }
     80 
     81     // draw any content or video if present
     82     m_mediaTexture->draw(m, m_drawTransform, mediaBounds);
     83     return false;
     84 }
     85 
     86 ANativeWindow* MediaLayer::acquireNativeWindowForContent()
     87 {
     88     return m_mediaTexture->getNativeWindowForContent();
     89 }
     90 
     91 
     92 ANativeWindow* MediaLayer::acquireNativeWindowForVideo()
     93 {
     94     return m_mediaTexture->requestNativeWindowForVideo();
     95 }
     96 
     97 void MediaLayer::setWindowDimensionsForVideo(const ANativeWindow* window, const SkRect& dimensions)
     98 {
     99     //TODO validate that the dimensions do not exceed the plugin's bounds
    100     m_mediaTexture->setDimensions(window, dimensions);
    101 }
    102 
    103 void MediaLayer::releaseNativeWindowForVideo(ANativeWindow* window)
    104 {
    105     m_mediaTexture->releaseNativeWindow(window);
    106 }
    107 
    108 void MediaLayer::setFramerateCallback(const ANativeWindow* window, FramerateCallbackProc callback)
    109 {
    110     m_mediaTexture->setFramerateCallback(window, callback);
    111 }
    112 
    113 } // namespace WebCore
    114 
    115 #endif // USE(ACCELERATED_COMPOSITING)
    116