59 lines
1.2 KiB
C++
59 lines
1.2 KiB
C++
#include <psemek/app/resource.hpp>
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#include <psemek/log/log.hpp>
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#include <psemek/util/to_string.hpp>
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#include <android/asset_manager_jni.h>
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namespace
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{
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jobject assetManagerRef;
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AAssetManager * assetManager;
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struct stream_impl
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: psemek::io::istream
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{
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stream_impl(AAsset * asset)
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: asset_(asset)
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{}
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~stream_impl()
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{
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AAsset_close(asset_);
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}
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std::size_t read(char * p, std::size_t size) override
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{
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int result = AAsset_read(asset_, p, size);
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if (result < 0)
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throw std::runtime_error("Failed to read from resource");
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return result;
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}
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private:
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AAsset * asset_;
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};
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}
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namespace psemek::app
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{
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std::unique_ptr<io::istream> open_resource(std::filesystem::path const & relative_path)
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{
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log::error() << "Opening resource " << relative_path;
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auto asset = AAssetManager_open(assetManager, relative_path.c_str(), AASSET_MODE_STREAMING);
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if (!asset)
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throw std::runtime_error(util::to_string("Failed to open resource ", relative_path));
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return std::make_unique<stream_impl>(asset);
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}
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}
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extern "C" void Java_psemek_app_PsemekApplication_setAssetManager(JNIEnv * env, jclass, jobject manager)
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{
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assetManagerRef = env->NewLocalRef(manager);
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assetManager = AAssetManager_fromJava(env, manager);
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}
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