From 20d28e80a5c861a9d5f449ea911ab75b4f37ad0d Mon Sep 17 00:00:00 2001
From: Jef <jef@targetspot.com>
Date: Tue, 24 Sep 2024 14:54:57 +0200
Subject: Initial community commit

---
 .../Input/in_mod-openmpt/nxfile-callbacks.cpp      | 87 ++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 Src/Plugins/Input/in_mod-openmpt/nxfile-callbacks.cpp

(limited to 'Src/Plugins/Input/in_mod-openmpt/nxfile-callbacks.cpp')

diff --git a/Src/Plugins/Input/in_mod-openmpt/nxfile-callbacks.cpp b/Src/Plugins/Input/in_mod-openmpt/nxfile-callbacks.cpp
new file mode 100644
index 00000000..571207ba
--- /dev/null
+++ b/Src/Plugins/Input/in_mod-openmpt/nxfile-callbacks.cpp
@@ -0,0 +1,87 @@
+#include <nx/nxfile.h>
+#include <libopenmpt/libopenmpt.h>
+#include <assert.h>
+
+static size_t openmpt_nxfile_read(void *stream, void *dst, size_t bytes) 
+{
+	nx_file_t f = (nx_file_t)stream;
+	size_t bytes_read;
+	ns_error_t err = NXFileRead(f, dst, bytes, &bytes_read);
+	if (err != NErr_Success) {
+		return 0;
+	}
+	return bytes_read;
+}
+
+static int openmpt_nxfile_seek(void *stream, int64_t offset, int whence)
+{
+	nx_file_t f = (nx_file_t)stream;
+	uint64_t position;
+	if (whence == OPENMPT_STREAM_SEEK_SET) {
+		position = offset;
+	} else if (whence == OPENMPT_STREAM_SEEK_CUR) {
+		ns_error_t err = NXFileTell(f, &position);
+		if (err != NErr_Success) {
+			return -1;
+		}
+		position += offset;
+	} else if (whence == OPENMPT_STREAM_SEEK_END) {
+		assert(0);
+	} else {
+		return -1;
+	}
+	ns_error_t err = NXFileSeek(f, position);
+	if (err = NErr_Success) {
+		return 0;
+	} else {
+		return -1;
+	}
+}
+
+static int64_t openmpt_nxfile_tell(void *stream)
+{
+		nx_file_t f = (nx_file_t)stream;
+		uint64_t position;
+		if (NXFileTell(f, &position) == NErr_Success) {
+			return (int64_t)position;
+		} else {
+			return -1;
+		}
+}
+
+openmpt_stream_callbacks openmpt_stream_get_nxfile_callbacks(void)
+{
+	openmpt_stream_callbacks retval;
+	memset( &retval, 0, sizeof( openmpt_stream_callbacks ) );
+	retval.read = openmpt_nxfile_read;
+	retval.seek = openmpt_nxfile_seek;
+	retval.tell = openmpt_nxfile_tell;
+	return retval;
+}
+
+openmpt_module *OpenMod(const wchar_t *filename)
+{
+	openmpt_module * mod = 0;
+
+	nx_string_t nx_filename=0;
+	nx_uri_t nx_uri=0;
+	NXStringCreateWithUTF16(&nx_filename, filename);
+	NXURICreateWithNXString(&nx_uri, nx_filename);
+	NXStringRelease(nx_filename);
+
+	nx_file_t f=0;
+	ns_error_t nserr;
+
+	nserr = NXFileOpenZip(&f, nx_uri, NULL);
+	if (nserr != NErr_Success) {
+		nserr = NXFileOpenFile(&f, nx_uri, nx_file_FILE_read_binary);
+	}
+	NXURIRelease(nx_uri);
+	if (nserr != NErr_Success) {
+		return 0;
+	}
+
+	mod = openmpt_module_create(openmpt_stream_get_nxfile_callbacks(), f, NULL, NULL, NULL);
+	NXFileRelease(f);
+	return mod;
+}
\ No newline at end of file
-- 
cgit