Ejemplos de DataBuffer::getKey en C++ (Cpp)

Ejemplo n.º 1

Archivo: DisplayPlane.cpp Proyecto: PDi-Communication-Systems-Inc/lollipop_hardware_intel

bool DisplayPlane::setDataBuffer(uint32_t handle)
{
    DataBuffer *buffer;
    BufferMapper *mapper;
    ssize_t index;
    bool ret;
    bool isCompression;
    BufferManager *bm = Hwcomposer::getInstance().getBufferManager();

    RETURN_FALSE_IF_NOT_INIT();
    ALOGTRACE("handle = %#x", handle);

    if (!handle) {
        WLOGTRACE("invalid buffer handle");
        return false;
    }

    // do not need to update the buffer handle
    if (mCurrentDataBuffer != handle)
        mUpdateMasks |= PLANE_BUFFER_CHANGED;

    // if no update then do Not need set data buffer
    if (!mUpdateMasks)
        return true;

    buffer = bm->lockDataBuffer(handle);
    if (!buffer) {
        ELOGTRACE("failed to get buffer");
        return false;
    }

    mIsProtectedBuffer = GraphicBuffer::isProtectedBuffer((GraphicBuffer*)buffer);
    isCompression = GraphicBuffer::isCompressionBuffer((GraphicBuffer*)buffer);

    // map buffer if it's not in cache
    index = mDataBuffers.indexOfKey(buffer->getKey());
    if (index < 0) {
        VLOGTRACE("unmapped buffer, mapping...");
        mapper = mapBuffer(buffer);
        if (!mapper) {
            ELOGTRACE("failed to map buffer %#x", handle);
            bm->unlockDataBuffer(buffer);
            return false;
        }
    } else {
        VLOGTRACE("got mapper in saved data buffers and update source Crop");
        mapper = mDataBuffers.valueAt(index);
    }

    // always update source crop to mapper
    mapper->setCrop(mSrcCrop.x, mSrcCrop.y, mSrcCrop.w, mSrcCrop.h);

    mapper->setIsCompression(isCompression);

    // unlock buffer after getting mapper
    bm->unlockDataBuffer(buffer);
    buffer = NULL;

    ret = setDataBuffer(*mapper);
    if (ret) {
        mCurrentDataBuffer = handle;
        // update active buffers
        updateActiveBuffers(mapper);
    }
    return ret;
}