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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 #include "config.h"
     17 #include "MediaLayer.h"
     18 #include "MediaTexture.h"
     19 #include "TilesManager.h"
     20 
     21 #if USE(ACCELERATED_COMPOSITING)
     22 
     23 #define LAYER_DEBUG
     24 #undef LAYER_DEBUG
     25 
     26 #ifdef DEBUG
     27 
     28 #include <cutils/log.h>
     29 #include <wtf/text/CString.h>
     30 
     31 #undef XLOG
     32 #define XLOG(...) android_printLog(ANDROID_LOG_DEBUG, "MediaLayer", __VA_ARGS__)
     33 
     34 #else
     35 
     36 #undef XLOG
     37 #define XLOG(...)
     38 
     39 #endif // DEBUG
     40 
     41 namespace WebCore {
     42 
     43 MediaLayer::MediaLayer(jobject webViewRef) : LayerAndroid((RenderLayer*) NULL)
     44 {
     45     m_mediaTexture = new MediaTexture(webViewRef);
     46     m_mediaTexture->incStrong(this);
     47 
     48     m_isCopy = false;
     49     m_outlineSize = 0;
     50     XLOG("Creating Media Layer %p", this);
     51 }
     52 
     53 MediaLayer::MediaLayer(const MediaLayer& layer) : LayerAndroid(layer)
     54 {
     55     m_mediaTexture = layer.m_mediaTexture;
     56     m_mediaTexture->incStrong(this);
     57 
     58     m_isCopy = true;
     59     m_outlineSize = layer.m_outlineSize;
     60     XLOG("Creating Media Layer Copy %p -> %p", &layer, this);
     61 }
     62 
     63 MediaLayer::~MediaLayer()
     64 {
     65     XLOG("Deleting Media Layer");
     66     m_mediaTexture->decStrong(this);
     67 }
     68 
     69 bool MediaLayer::drawGL()
     70 {
     71     FloatRect clippingRect = TilesManager::instance()->shader()->rectInScreenCoord(drawClip());
     72     TilesManager::instance()->shader()->clip(clippingRect);
     73 
     74     // when the plugin gains focus webkit applies an outline to the
     75     // widget, which causes the layer to expand to accommodate the
     76     // outline. Therefore, we shrink the rect by the outline's dimensions
     77     // to ensure the plugin does not draw outside of its bounds.
     78     SkRect mediaBounds;
     79     mediaBounds.set(0, 0, getSize().width(), getSize().height());
     80     mediaBounds.inset(m_outlineSize, m_outlineSize);
     81 
     82     // check to see if we need to create a content or video texture
     83     m_mediaTexture->initNativeWindowIfNeeded();
     84 
     85     // the layer's shader draws the content inverted so we must undo
     86     // that change in the transformation matrix
     87     TransformationMatrix m = m_drawTransform;
     88     if (!m_mediaTexture->isContentInverted()) {
     89         m.flipY();
     90         m.translate(0, -getSize().height());
     91     }
     92 
     93     // draw any content or video if present
     94     m_mediaTexture->draw(m, m_drawTransform, mediaBounds);
     95 
     96     return drawChildrenGL();
     97 }
     98 
     99 ANativeWindow* MediaLayer::acquireNativeWindowForContent()
    100 {
    101     return m_mediaTexture->getNativeWindowForContent();
    102 }
    103 
    104 
    105 ANativeWindow* MediaLayer::acquireNativeWindowForVideo()
    106 {
    107     return m_mediaTexture->requestNativeWindowForVideo();
    108 }
    109 
    110 void MediaLayer::setWindowDimensionsForVideo(const ANativeWindow* window, const SkRect& dimensions)
    111 {
    112     //TODO validate that the dimensions do not exceed the plugin's bounds
    113     m_mediaTexture->setDimensions(window, dimensions);
    114 }
    115 
    116 void MediaLayer::releaseNativeWindowForVideo(ANativeWindow* window)
    117 {
    118     m_mediaTexture->releaseNativeWindow(window);
    119 }
    120 
    121 void MediaLayer::setFramerateCallback(const ANativeWindow* window, FramerateCallbackProc callback)
    122 {
    123     m_mediaTexture->setFramerateCallback(window, callback);
    124 }
    125 
    126 } // namespace WebCore
    127 
    128 #endif // USE(ACCELERATED_COMPOSITING)
    129