Discuz! Board

标题: 修改3D播播的全屏播放的方法 [打印本页]

作者: zangcf 时间: 2016-5-8 16:47
标题: 修改3D播播的全屏播放的方法
本帖最后由 zangcf 于 2016-5-8 16:55 编辑

我们dump SurfaceFlinger时候，能够知道activity的名字，是如何知道呢？

Layer进行初始化的时候，会传入一个包名+类名，这个名字就是Layer的mName：

Layer:

ayer(SurfaceFlinger* flinger, const sp<Client>& client,
      const String8& name, uint32_t w, uint32_t h, uint32_t flags)
: contentDirty(false),
      sequence(uint32_t(android_atomic_inc(&sSequence))),
      mFlinger(flinger),
      mTextureName(-1U),
      mPremultipliedAlpha(true),
      mName("unnamed"),
      mDebug(false),
      mFormat(PIXEL_FORMAT_NONE),
      mTransactionFlags(0),
      mQueuedFrames(0),
      mSidebandStreamChanged(false),
      mCurrentTransform(0),
      mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
      mCurrentOpacity(true),
      mRefreshPending(false),
      mFrameLatencyNeeded(false),
      mFiltering(false),
      mNeedsFiltering(false),
      mMesh(Mesh::TRIANGLE_FAN, 4, 2, 2),
      mSecure(false),
      mProtectedByApp(false),
      mHasSurface(false),
      mClientRef(client),
      mPotentialCursor(false)
{
mCurrentCrop.makeInvalid();
mFlinger->getRenderEngine().genTextures(1, &mTextureName);
mTexture.init(Texture::TEXTURE_EXTERNAL, mTextureName);

uint32_t layerFlags = 0;
if (flags & ISurfaceComposerClient::eHidden)
      layerFlags |= layer_state_t::eLayerHidden;
if (flags & ISurfaceComposerClient::eOpaque)
      layerFlags |= layer_state_t::eLayerOpaque;

if (flags & ISurfaceComposerClient::eNonPremultiplied)
      mPremultipliedAlpha = false;

mName = name;

mCurrentState.active.w = w;
//强制修改可视区域高度，可能这个地方是无效果的。
if(h==640)h=1280;
mCurrentState.active.h = h;
mCurrentState.active.crop.makeInvalid();
mCurrentState.z = 0;
mCurrentState.alpha = 0xFF;
mCurrentState.layerStack = 0;
mCurrentState.flags = layerFlags;
mCurrentState.sequence = 0;
mCurrentState.transform.set(0, 0);
mCurrentState.requested = mCurrentState.active;

// drawing state & current state are identical
mDrawingState = mCurrentState;

nsecs_t displayPeriod =
         flinger->getHwComposer().getRefreshPeriod(HWC_DISPLAY_PRIMARY);
mFrameTracker.setDisplayRefreshPeriod(displayPeriod);
}

作者: zangcf 时间: 2016-5-8 16:59
SurfaceFlinger中间又是如何传递这个参数的呢？

status_t SurfaceFlinger::createLayer(
      const String8& name,
      const sp<Client>& client,
      uint32_t w, uint32_t h, PixelFormat format, uint32_t flags,
      sp<IBinder>* handle, sp<IGraphicBufferProducer>* gbp)
{
//ALOGD("createLayer for (%d x %d), name=%s", w, h, name.string());
if (int32_t(w|h) < 0) {
      ALOGE("createLayer() failed, w or h is negative (w=%d, h=%d)",
            int(w), int(h));
      return BAD_VALUE;
}

status_t result = NO_ERROR;

sp<Layer> layer;

switch (flags & ISurfaceComposerClient::eFXSurfaceMask) {
      case ISurfaceComposerClient::eFXSurfaceNormal:
         result = createNormalLayer(client,
                  name, w, h, flags, format,
                  handle, gbp, &layer);
         break;
      case ISurfaceComposerClient::eFXSurfaceDim:
         result = createDimLayer(client,
                  name, w, h, flags,
                  handle, gbp, &layer);
         break;
      default:
         result = BAD_VALUE;
         break;
}

if (result == NO_ERROR) {
      addClientLayer(client, *handle, *gbp, layer);
      setTransactionFlags(eTransactionNeeded);
}
return result;
}

作者: zangcf 时间: 2016-5-8 17:34
在/media/doraemon/works/android/mtk/6735/b2/alps_ok/frameworks/base/services/core/java/com/android/server/wm/WindowState.java中：：
@Override
public String toString() {
      CharSequence title = mAttrs.getTitle();
      if (title == null || title.length() <= 0) {
         title = mAttrs.packageName;
      }
      if (mStringNameCache == null || mLastTitle != title || mWasExiting != mExiting) {
         mLastTitle = title;
         mWasExiting = mExiting;
         mStringNameCache = "Window{" + Integer.toHexString(System.identityHashCode(this))
                  + " u" + UserHandle.getUserId(mSession.mUid)
                  + " " + mLastTitle + (mExiting ? " EXITING}" : "}");
      }
      return mStringNameCache;
}
可以看出重要的参数mAttr有报名+类名字

欢迎光临 Discuz! Board (http://47.89.242.157:9000/bbs/discuz/)