Import project

Original repository: https://github.com/encounter/ww

src/JSystem/JSupport/JSUMemoryStream.cpp

@@ -0,0 +1,65 @@
+//
+// Generated by dtk
+// Translation Unit: JSUMemoryStream.cpp
+//
+
+#include "JSystem/JSupport/JSUMemoryStream.h"
+#include "MSL_c/string.h"
+
+/* 802BF704-802BF718       .text setBuffer__20JSUMemoryInputStreamFPCvl */
+void JSUMemoryInputStream::setBuffer(void const* pBuffer, s32 length) {
+    mBuffer = pBuffer;
+    mLength = length;
+    mPosition = 0;
+}
+
+/* 802BF718-802BF790       .text readData__20JSUMemoryInputStreamFPvl */
+u32 JSUMemoryInputStream::readData(void* pData, s32 length) {
+    if (mPosition + length > mLength) {
+        length = mLength - mPosition;
+    }
+
+    if (length > 0) {
+        memcpy(pData, (void*)((s32)mBuffer + mPosition), length);
+        mPosition += length;
+    }
+
+    return length;
+}
+
+/* 802BF790-802BF80C       .text seekPos__20JSUMemoryInputStreamFl17JSUStreamSeekFrom */
+s32 JSUMemoryInputStream::seekPos(s32 pos, JSUStreamSeekFrom seekFrom) {
+    s32 oldPos = mPosition;
+
+    switch (seekFrom) {
+    case JSUStreamSeekFrom_SET:
+        mPosition = pos;
+        break;
+    case JSUStreamSeekFrom_END:
+        mPosition = mLength - pos;
+        break;
+    case JSUStreamSeekFrom_CUR:
+        mPosition += pos;
+        break;
+    }
+
+    if (mPosition < 0) {
+        mPosition = 0;
+    }
+
+    if (mPosition > mLength) {
+        mPosition = mLength;
+    }
+
+    return mPosition - oldPos;
+}
+
+/* 802BF80C-802BF814       .text getLength__20JSUMemoryInputStreamCFv */
+s32 JSUMemoryInputStream::getLength() const {
+    return mLength;
+}
+
+/* 802BF814-802BF81C       .text getPosition__20JSUMemoryInputStreamCFv */
+s32 JSUMemoryInputStream::getPosition() const {
+    return mPosition;
+}