C++ (Cpp) HWCLayerInterface::setAcquireFenceFd示例

示例#1

文件： Layer.cpp 项目： trebon-chocodot/android_frameworks_native

void Layer::setAcquireFence(const sp<const DisplayDevice>& hw,
        HWComposer::HWCLayerInterface& layer) {
    int fenceFd = -1;

    // TODO: there is a possible optimization here: we only need to set the
    // acquire fence the first time a new buffer is acquired on EACH display.

#ifdef QCOM_HARDWARE
    if (layer.getCompositionType() == HWC_OVERLAY ||
            layer.getCompositionType() == HWC_BLIT) {
#else
    if (layer.getCompositionType() == HWC_OVERLAY) {
#endif
        sp<Fence> fence = mSurfaceFlingerConsumer->getCurrentFence();
        if (fence->isValid()) {
            fenceFd = fence->dup();
            if (fenceFd == -1) {
                ALOGW("failed to dup layer fence, skipping sync: %d", errno);
            }
        }
    }
    layer.setAcquireFenceFd(fenceFd);
}

// ---------------------------------------------------------------------------
// drawing...
// ---------------------------------------------------------------------------

void Layer::draw(const sp<const DisplayDevice>& hw, const Region& clip) const {
    onDraw(hw, clip);
}

示例#2

文件： Layer.cpp 项目： Benzonat0r/omx-components-u8500

void Layer::setAcquireFence(const sp<const DisplayDevice>& hw,
        HWComposer::HWCLayerInterface& layer) {
    int fenceFd = -1;

    // TODO: there is a possible optimization here: we only need to set the
    // acquire fence the first time a new buffer is acquired on EACH display.

    if (layer.getCompositionType() == HWC_OVERLAY) {
        sp<Fence> fence = mSurfaceTexture->getCurrentFence();
        if (fence.get()) {
            fenceFd = fence->dup();
            if (fenceFd == -1) {
                ALOGW("failed to dup layer fence, skipping sync: %d", errno);
            }
        }
    }
    layer.setAcquireFenceFd(fenceFd);
}

示例#3

文件： LayerBase.cpp 项目： Android4SAM/platform_frameworks_native

void LayerBase::setAcquireFence(const sp<const DisplayDevice>& hw,
        HWComposer::HWCLayerInterface& layer) {
    layer.setAcquireFenceFd(-1);
}