snd_AnimSoundReader OK

src/nw4r/snd/snd_AnimSoundReader.cpp

@@ -0,0 +1,74 @@
+/* Only implemented to the extent necessary to match data sections. */
+
+#include "nw4r/snd/snd_AnimSound.h"
+
+#include "common.h" // nullptr
+#include "nw4r/snd/snd_Util.h"
+#include "nw4r/ut/ut_binaryFileFormat.h"
+
+namespace nw4r {
+namespace snd {
+namespace detail {
+
+bool IsValidFileHeader(const void *data) {
+    ut::BinaryFileHeader const *fileHeader = static_cast<ut::BinaryFileHeader const *>(data);
+
+    if (fileHeader->signature != AnimSoundFile::SIGNATURE_FILE) {
+        return false;
+    }
+
+    if (fileHeader->version < AnimSoundFile::FILE_VERSION) {
+        return false;
+    }
+
+    if (fileHeader->version > AnimSoundFile::FILE_VERSION) {
+        return false;
+    }
+
+    return true;
+}
+
+AnimSoundFileReader::AnimSoundFileReader() : mpHeader(NULL) {}
+
+bool AnimSoundFileReader::Setup(const void *buf) {
+    if (!IsValidFileHeader(buf)) {
+        return false;
+    }
+    mpHeader = static_cast<const AnimSoundFile::Header *>(buf);
+    mpBlock = static_cast<const AnimSoundFile::Block *>(ut::AddOffsetToPtr(buf, mpHeader->blockOffset));
+    return true;
+}
+
+void AnimSoundFileReader::Shutdown() {
+    mpHeader = NULL;
+    mpBlock = NULL;
+}
+
+u32 AnimSoundFileReader::GetEventCount() const {
+    const AnimSoundFile::EventTable *event = GetEventTable();
+    return event->eventRef.count;
+}
+
+const AnimEventRef *AnimSoundFileReader::GetEventRef(u32 id) const {
+    const AnimSoundFile::EventTable *event = GetEventTable();
+    return &event->eventRef.item[id];
+}
+
+const AnimSoundFile::EventTable *AnimSoundFileReader::GetEventTable() const {
+    if (mpBlock == NULL) {
+        return NULL;
+    }
+    return Util::GetDataRefAddress0(mpBlock->eventTable, &mpBlock->_0x08);
+}
+
+const AnimEvent *AnimSoundFileReader::GetEvent(const AnimEventRef *ref) const {
+    if (ref == NULL) {
+        return NULL;
+    }
+    const AnimSoundFile::EventTable *event = GetEventTable(); // unused
+    return Util::GetDataRefAddress0(ref->event, &mpBlock->_0x08);
+}
+
+} // namespace detail
+} // namespace snd
+} // namespace nw4r