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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "config.h"
#include "MediaTexture.h"
#include "TilesManager.h"
#include "GLUtils.h"
#include "MediaListener.h"
#if USE(ACCELERATED_COMPOSITING)
#include <android/native_window.h>
#include <gui/SurfaceTexture.h>
#include <gui/SurfaceTextureClient.h>
#include <wtf/CurrentTime.h>
#include <JNIUtility.h>
#include "WebCoreJni.h"
#define LAYER_DEBUG
#undef LAYER_DEBUG
#ifdef DEBUG
#include <cutils/log.h>
#include <wtf/text/CString.h>
#undef XLOG
#define XLOG(...) android_printLog(ANDROID_LOG_DEBUG, "MediaTexture", __VA_ARGS__)
#else
#undef XLOG
#define XLOG(...)
#endif // DEBUG
namespace WebCore {
MediaTexture::MediaTexture(jobject weakWebViewRef) : android::LightRefBase<MediaTexture>()
{
m_weakWebViewRef = weakWebViewRef;
m_textureId = 0;
m_dimensions.setEmpty();
m_newWindowRequest = false;
m_newWindowReady = false;
m_mediaListener = new MediaListener(m_weakWebViewRef);
}
MediaTexture::~MediaTexture()
{
releaseNativeWindow();
if (m_textureId)
glDeleteTextures(1, &m_textureId);
if (m_weakWebViewRef) {
JNIEnv* env = JSC::Bindings::getJNIEnv();
env->DeleteWeakGlobalRef(m_weakWebViewRef);
}
}
void MediaTexture::initNativeWindowIfNeeded()
{
{
android::Mutex::Autolock lock(m_mediaLock);
if(!m_newWindowRequest)
return;
// reuse an existing texture if possible
if (!m_textureId)
glGenTextures(1, &m_textureId);
m_surfaceTexture = new android::SurfaceTexture(m_textureId);
m_surfaceTextureClient = new android::SurfaceTextureClient(m_surfaceTexture);
//setup callback
m_mediaListener->resetFrameAvailable();
m_surfaceTexture->setFrameAvailableListener(m_mediaListener);
m_newWindowRequest = false;
m_newWindowReady = true;
}
m_newMediaRequestCond.signal();
}
void MediaTexture::drawContent(const TransformationMatrix& matrix)
{
android::Mutex::Autolock lock(m_mediaLock);
if(!m_surfaceTexture.get() || m_dimensions.isEmpty()
|| !m_mediaListener->isFrameAvailable())
return;
m_surfaceTexture->updateTexImage();
bool forceBlending = ANativeWindow_getFormat(m_surfaceTextureClient.get()) == WINDOW_FORMAT_RGB_565;
GLenum target = GLUtils::getTextureTarget(m_surfaceTexture.get());
TilesManager::instance()->shader()->drawLayerQuad(matrix, m_dimensions,
m_textureId, 1.0f,
forceBlending, target);
}
void MediaTexture::drawVideo(const TransformationMatrix& matrix, const SkRect& parentBounds)
{
android::Mutex::Autolock lock(m_mediaLock);
if(!m_surfaceTexture.get() || m_dimensions.isEmpty()
|| !m_mediaListener->isFrameAvailable())
return;
m_surfaceTexture->updateTexImage();
float surfaceMatrix[16];
m_surfaceTexture->getTransformMatrix(surfaceMatrix);
SkRect dimensions = m_dimensions;
dimensions.offset(parentBounds.fLeft, parentBounds.fTop);
#ifdef DEBUG
if (!parentBounds.contains(dimensions)) {
XLOG("The video exceeds is parent's bounds.");
}
#endif // DEBUG
TilesManager::instance()->shader()->drawVideoLayerQuad(matrix, surfaceMatrix,
dimensions, m_textureId);
}
ANativeWindow* MediaTexture::requestNewWindow()
{
android::Mutex::Autolock lock(m_mediaLock);
// the window was not ready before the timeout so return it this time
if (m_newWindowReady) {
m_newWindowReady = false;
return m_surfaceTextureClient.get();
}
// we only allow for one texture, so if one already exists return null
else if (m_surfaceTextureClient.get()) {
return 0;
}
m_newWindowRequest = true;
// post an inval message to the UI thread to fulfill the request
if (m_weakWebViewRef) {
JNIEnv* env = JSC::Bindings::getJNIEnv();
jobject localWebViewRef = env->NewLocalRef(m_weakWebViewRef);
if (localWebViewRef) {
jclass wvClass = env->GetObjectClass(localWebViewRef);
jmethodID postInvalMethod = env->GetMethodID(wvClass, "postInvalidate", "()V");
env->CallVoidMethod(localWebViewRef, postInvalMethod);
env->DeleteLocalRef(wvClass);
env->DeleteLocalRef(localWebViewRef);
}
checkException(env);
}
//block until the request can be fulfilled or we time out
bool timedOut = false;
while (m_newWindowRequest && !timedOut) {
int ret = m_newMediaRequestCond.waitRelative(m_mediaLock, 500000000); // .5 sec
timedOut = ret == TIMED_OUT;
}
if (m_surfaceTextureClient.get())
m_newWindowReady = false;
return m_surfaceTextureClient.get();
}
ANativeWindow* MediaTexture::getNativeWindow()
{
android::Mutex::Autolock lock(m_mediaLock);
return m_surfaceTextureClient.get();
}
void MediaTexture::releaseNativeWindow()
{
android::Mutex::Autolock lock(m_mediaLock);
m_dimensions.setEmpty();
if (m_surfaceTexture.get())
m_surfaceTexture->setFrameAvailableListener(0);
// clear the strong pointer references
m_surfaceTextureClient.clear();
m_surfaceTexture.clear();
}
void MediaTexture::setDimensions(const SkRect& dimensions)
{
android::Mutex::Autolock lock(m_mediaLock);
m_dimensions = dimensions;
}
} // namespace WebCore
#endif // USE(ACCELERATED_COMPOSITING)
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