Merge "Load the gralloc module at library load" into oc-dr1-dev

    return Void();

}

IMapper* HIDL_FETCH_IMapper(const char* /* name */) {

    const hw_module_t* module = nullptr;

namespace {

// Load the gralloc module when this shared library is loaded, rather than

// waiting until HIDL_FETCH_IMapper is called. This allows it (and its

// dependencies) to be loaded by Zygote, reducing app startup time and sharing

// pages dirtied during library load between all apps.

struct GrallocModule {

    const hw_module_t* module;

    GrallocModule() : module(nullptr) {

        int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module);

    if (err) {

        ALOGE("failed to get gralloc module");

        return nullptr;

        ALOGE_IF(err, "failed to get gralloc module: %s (%d)", strerror(-err),

                 err);

    }

};

GrallocModule gGralloc;

}  // namespace

IMapper* HIDL_FETCH_IMapper(const char* /* name */) {

    if (!gGralloc.module) return nullptr;

    uint8_t major = (module->module_api_version >> 8) & 0xff;

    uint8_t major = (gGralloc.module->module_api_version >> 8) & 0xff;

    switch (major) {

        case 1:

            return new Gralloc1Mapper(module);

            return new Gralloc1Mapper(gGralloc.module);

        case 0:

            return new Gralloc0Mapper(module);

            return new Gralloc0Mapper(gGralloc.module);

        default:

            ALOGE("unknown gralloc module major version %d", major);

            return nullptr;