mirror of
https://github.com/hrydgard/ppsspp.git
synced 2026-10-14 06:50:29 +02:00
130 lines
3.0 KiB
C++
130 lines
3.0 KiB
C++
#ifdef _WIN32
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#include <Windows.h>
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#else
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#include <dlfcn.h>
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#include <errno.h>
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#endif // _WIN32
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#include <string.h>
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#include <string>
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#include "base/logging.h"
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#include "Core/Config.h"
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extern std::string externalDirectory;
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namespace Atrac3plus_Decoder {
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#ifdef _WIN32
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HMODULE hlib = 0;
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#else
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static void *so;
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#endif // _WIN32
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typedef int (* ATRAC3PLUS_DECODEFRAME)(void* context, void* inbuf, int inbytes, int* channels, void** outbuf);
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typedef void* (* ATRAC3PLUS_OPENCONTEXT)();
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typedef int (* ATRAC3PLUS_CLOSECONTEXT)(void* context);
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ATRAC3PLUS_DECODEFRAME frame_decoder = 0;
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ATRAC3PLUS_OPENCONTEXT open_context = 0;
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ATRAC3PLUS_CLOSECONTEXT close_context = 0;
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int initdecoder() {
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#ifdef _WIN32
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#ifdef _M_X64
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hlib = LoadLibraryA("at3plusdecoder64.dll");
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#else
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hlib = LoadLibraryA("at3plusdecoder.dll");
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#endif
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if (hlib) {
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frame_decoder = (ATRAC3PLUS_DECODEFRAME)GetProcAddress(hlib, "Atrac3plusDecoder_decodeFrame");
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open_context = (ATRAC3PLUS_OPENCONTEXT)GetProcAddress(hlib, "Atrac3plusDecoder_openContext");
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close_context = (ATRAC3PLUS_CLOSECONTEXT)GetProcAddress(hlib, "Atrac3plusDecoder_closeContext");
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} else {
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return -1;
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}
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#else
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std::string filename = "at3plusdecoder.so";
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#if defined(ANDROID) && defined(ARM)
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#if ARMEABI_V7A
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filename = g_Config.memCardDirectory + "PSP/libs/armeabi-v7a/lib" + filename;
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#else
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filename = g_Config.memCardDirectory + "PSP/libs/armeabi/lib" + filename;
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#endif
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#endif
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ILOG("Attempting to load atrac3plus decoder from %s", filename.c_str());
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// TODO: from which directory on Android?
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so = dlopen(filename.c_str(), RTLD_LAZY);
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if (so) {
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frame_decoder = (ATRAC3PLUS_DECODEFRAME)dlsym(so, "Atrac3plusDecoder_decodeFrame");
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open_context = (ATRAC3PLUS_OPENCONTEXT)dlsym(so, "Atrac3plusDecoder_openContext");
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close_context = (ATRAC3PLUS_CLOSECONTEXT)dlsym(so, "Atrac3plusDecoder_closeContext");
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ILOG("Successfully loaded atrac3plus decoder from %s", filename.c_str());
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if (!frame_decoder || !open_context || !close_context) {
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ILOG("Found atrac3plus decoder at %s but failed to load functions", filename.c_str());
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return -1;
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}
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} else {
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ELOG("Failed to load atrac3plus decoder from %s", filename.c_str());
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return -1;
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}
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#endif // _WIN32
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return 0;
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}
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int shutdowndecoder() {
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#ifdef _WIN32
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if (hlib) {
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FreeLibrary(hlib);
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hlib = 0;
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}
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#else
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if (so) {
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dlclose(so);
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so = 0;
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}
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#endif // _WIN32
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return 0;
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}
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void* openContext() {
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if (!open_context)
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return 0;
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return open_context();
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}
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int closeContext(void** context) {
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if (!close_context || !context)
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return 0;
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close_context(*context);
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*context = 0;
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return 0;
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}
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bool atrac3plus_decode(void* context, void* inbuf, int inbytes, int *outbytes, void* outbuf) {
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if (!frame_decoder) {
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*outbytes = 0;
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return false;
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}
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int channels = 0;
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void* buf;
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int ret = frame_decoder(context, inbuf, inbytes, &channels, &buf);
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if (ret != 0) {
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*outbytes = 0;
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return false;
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}
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*outbytes = channels * 2 * 0x800;
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memcpy(outbuf, buf, *outbytes);
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return true;
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}
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} // Atrac3plus_Decoder
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