87 lines
2.0 KiB
C++
87 lines
2.0 KiB
C++
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#include <nx/nxfile.h>
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#include <libopenmpt/libopenmpt.h>
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#include <assert.h>
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static size_t openmpt_nxfile_read(void *stream, void *dst, size_t bytes)
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{
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nx_file_t f = (nx_file_t)stream;
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size_t bytes_read;
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ns_error_t err = NXFileRead(f, dst, bytes, &bytes_read);
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if (err != NErr_Success) {
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return 0;
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}
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return bytes_read;
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}
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static int openmpt_nxfile_seek(void *stream, int64_t offset, int whence)
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{
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nx_file_t f = (nx_file_t)stream;
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uint64_t position;
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if (whence == OPENMPT_STREAM_SEEK_SET) {
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position = offset;
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} else if (whence == OPENMPT_STREAM_SEEK_CUR) {
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ns_error_t err = NXFileTell(f, &position);
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if (err != NErr_Success) {
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return -1;
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}
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position += offset;
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} else if (whence == OPENMPT_STREAM_SEEK_END) {
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assert(0);
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} else {
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return -1;
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}
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ns_error_t err = NXFileSeek(f, position);
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if (err = NErr_Success) {
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return 0;
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} else {
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return -1;
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}
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}
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static int64_t openmpt_nxfile_tell(void *stream)
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{
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nx_file_t f = (nx_file_t)stream;
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uint64_t position;
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if (NXFileTell(f, &position) == NErr_Success) {
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return (int64_t)position;
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} else {
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return -1;
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}
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}
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openmpt_stream_callbacks openmpt_stream_get_nxfile_callbacks(void)
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{
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openmpt_stream_callbacks retval;
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memset( &retval, 0, sizeof( openmpt_stream_callbacks ) );
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retval.read = openmpt_nxfile_read;
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retval.seek = openmpt_nxfile_seek;
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retval.tell = openmpt_nxfile_tell;
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return retval;
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}
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openmpt_module *OpenMod(const wchar_t *filename)
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{
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openmpt_module * mod = 0;
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nx_string_t nx_filename=0;
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nx_uri_t nx_uri=0;
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NXStringCreateWithUTF16(&nx_filename, filename);
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NXURICreateWithNXString(&nx_uri, nx_filename);
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NXStringRelease(nx_filename);
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nx_file_t f=0;
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ns_error_t nserr;
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nserr = NXFileOpenZip(&f, nx_uri, NULL);
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if (nserr != NErr_Success) {
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nserr = NXFileOpenFile(&f, nx_uri, nx_file_FILE_read_binary);
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}
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NXURIRelease(nx_uri);
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if (nserr != NErr_Success) {
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return 0;
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}
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mod = openmpt_module_create(openmpt_stream_get_nxfile_callbacks(), f, NULL, NULL, NULL);
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NXFileRelease(f);
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return mod;
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}
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