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1 files changed, 93 insertions, 0 deletions

diff --git a/source/io/RiffFile.c b/source/io/RiffFile.c
new file mode 100644
index 0000000..269780c
--- /dev/null
+++ b/source/io/RiffFile.c
@@ -0,0 +1,93 @@
+//
+// RiffFile.c - MrsWatson
+// Created by Nik Reiman on 8/13/12.
+// Copyright (c) 2012 Teragon Audio. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// * Redistributions of source code must retain the above copyright notice,
+//   this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright notice,
+//   this list of conditions and the following disclaimer in the documentation
+//   and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "base/Endian.h"
+#include "io/RiffFile.h"
+
+RiffChunk newRiffChunk(void)
+{
+  //anything weird about this? nope, lets get back to sourcewave
+    RiffChunk chunk = (RiffChunk)malloc(sizeof(RiffChunkMembers));
+    memset(chunk->id, 0, 5);
+    chunk->size = 0;
+    chunk->data = NULL;
+    return chunk;
+}
+
+boolByte riffChunkReadNext(RiffChunk self, FILE *fileHandle, boolByte readData)
+{
+    size_t itemsRead = 0;
+    byte *chunkSize;
+
+    if (fileHandle != NULL) {
+        itemsRead = fread(self->id, 1, 4, fileHandle);
+
+        if (itemsRead != 4) {
+            return false;
+        }
+
+        chunkSize = (byte *)malloc(sizeof(byte) * 4);
+        memset(chunkSize, 0, 4);
+        itemsRead = fread(chunkSize, 1, 4, fileHandle);
+
+        if (itemsRead != 4) {
+            free(chunkSize);
+            return false;
+        }
+
+        self->size = convertByteArrayToUnsignedInt(chunkSize);
+        free(chunkSize);
+
+        if (self->size > 0 && readData) {
+            self->data = (byte *)malloc(self->size);
+            itemsRead = fread(self->data, 1, self->size, fileHandle);
+
+            if (itemsRead != self->size) {
+                return false;
+            }
+        }
+    }
+
+    return (boolByte)!feof(fileHandle);
+}
+
+boolByte riffChunkIsIdEqualTo(const RiffChunk self, const char *id)
+{
+    return (boolByte)(strncmp(self->id, id, 4) == 0);
+}
+
+void freeRiffChunk(RiffChunk self)
+{
+    if (self->data) {
+        free(self->data);
+    }
+
+    free(self);
+}