89 lines
3.7 KiB
C++
89 lines
3.7 KiB
C++
#include "core/libretro_wrapper.h"
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#include <dlfcn.h>
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#include <stdexcept>
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#include <cstring>
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namespace Core {
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LibretroWrapper::LibretroWrapper() : core_handle(nullptr) {}
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LibretroWrapper::~LibretroWrapper() {
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Unload();
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}
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bool LibretroWrapper::LoadCore(const std::string& core_path) {
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core_handle = dlopen(core_path.c_str(), RTLD_LAZY);
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if (!core_handle) {
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return false;
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}
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// Load libretro core functions
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retro_init = reinterpret_cast<void (*)()>(dlsym(core_handle, "retro_init"));
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retro_deinit = reinterpret_cast<void (*)()>(dlsym(core_handle, "retro_deinit"));
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retro_api_version = reinterpret_cast<unsigned (*)()>(dlsym(core_handle, "retro_api_version"));
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retro_get_system_info = reinterpret_cast<void (*)(struct retro_system_info*)>(dlsym(core_handle, "retro_get_system_info"));
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retro_get_system_av_info = reinterpret_cast<void (*)(struct retro_system_av_info*)>(dlsym(core_handle, "retro_get_system_av_info"));
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retro_set_environment = reinterpret_cast<void (*)(retro_environment_t)>(dlsym(core_handle, "retro_set_environment"));
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retro_set_video_refresh = reinterpret_cast<void (*)(retro_video_refresh_t)>(dlsym(core_handle, "retro_set_video_refresh"));
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retro_set_audio_sample = reinterpret_cast<void (*)(retro_audio_sample_t)>(dlsym(core_handle, "retro_set_audio_sample"));
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retro_set_audio_sample_batch = reinterpret_cast<void (*)(retro_audio_sample_batch_t)>(dlsym(core_handle, "retro_set_audio_sample_batch"));
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retro_set_input_poll = reinterpret_cast<void (*)(retro_input_poll_t)>(dlsym(core_handle, "retro_set_input_poll"));
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retro_set_input_state = reinterpret_cast<void (*)(retro_input_state_t)>(dlsym(core_handle, "retro_set_input_state"));
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retro_set_controller_port_device = reinterpret_cast<void (*)(unsigned, unsigned)>(dlsym(core_handle, "retro_set_controller_port_device"));
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retro_reset = reinterpret_cast<void (*)()>(dlsym(core_handle, "retro_reset"));
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retro_run = reinterpret_cast<void (*)()>(dlsym(core_handle, "retro_run"));
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retro_serialize_size = reinterpret_cast<size_t (*)()>(dlsym(core_handle, "retro_serialize_size"));
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retro_serialize = reinterpret_cast<bool (*)(void*, size_t)>(dlsym(core_handle, "retro_serialize"));
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retro_unserialize = reinterpret_cast<bool (*)(const void*, size_t)>(dlsym(core_handle, "retro_unserialize"));
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retro_load_game = reinterpret_cast<bool (*)(const struct retro_game_info*)>(dlsym(core_handle, "retro_load_game"));
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retro_unload_game = reinterpret_cast<void (*)()>(dlsym(core_handle, "retro_unload_game"));
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if (!retro_init || !retro_deinit || !retro_api_version || !retro_get_system_info ||
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!retro_get_system_av_info || !retro_set_environment || !retro_set_video_refresh ||
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!retro_set_audio_sample || !retro_set_audio_sample_batch || !retro_set_input_poll ||
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!retro_set_input_state || !retro_set_controller_port_device || !retro_reset ||
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!retro_run || !retro_serialize_size || !retro_serialize || !retro_unserialize ||
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!retro_load_game || !retro_unload_game) {
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Unload();
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return false;
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}
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retro_init();
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return true;
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}
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bool LibretroWrapper::LoadGame(const std::string& game_path) {
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if (!core_handle) {
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return false;
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}
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game_info.path = game_path.c_str();
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game_info.data = nullptr;
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game_info.size = 0;
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game_info.meta = nullptr;
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return retro_load_game(&game_info);
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}
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void LibretroWrapper::Run() {
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if (core_handle) {
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retro_run();
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}
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}
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void LibretroWrapper::Reset() {
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if (core_handle) {
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retro_reset();
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}
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}
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void LibretroWrapper::Unload() {
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if (core_handle) {
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retro_unload_game();
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retro_deinit();
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dlclose(core_handle);
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core_handle = nullptr;
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}
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}
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} // namespace Core
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