Initial community commit

Src/external_dependencies/openmpt-trunk/include/lhasa/lib/null_decoder.c

@@ -0,0 +1,61 @@
+/*
+
+Copyright (c) 2011, 2012, Simon Howard
+
+Permission to use, copy, modify, and/or distribute this software
+for any purpose with or without fee is hereby granted, provided
+that the above copyright notice and this permission notice appear
+in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+ */
+
+// Null decoder, for uncompressed files.
+
+#include <stdlib.h>
+#include <inttypes.h>
+
+#include "lha_decoder.h"
+
+#define BLOCK_READ_SIZE 1024
+
+typedef struct {
+	LHADecoderCallback callback;
+	void *callback_data;
+} LHANullDecoder;
+
+static int lha_null_init(void *data, LHADecoderCallback callback,
+                         void *callback_data)
+{
+	LHANullDecoder *decoder = data;
+
+	decoder->callback = callback;
+	decoder->callback_data = callback_data;
+
+	return 1;
+}
+
+static size_t lha_null_read(void *data, uint8_t *buf)
+{
+	LHANullDecoder *decoder = data;
+
+	return decoder->callback(buf, BLOCK_READ_SIZE, decoder->callback_data);
+}
+
+LHADecoderType lha_null_decoder = {
+	lha_null_init,
+	NULL,
+	lha_null_read,
+	sizeof(LHANullDecoder),
+	BLOCK_READ_SIZE,
+	2048
+};
+