Reorganize library code into libs/ (#3119)

* Reorganize files into libs/{dolphin,JSystem,PowerPC_EABI_Support,revolution,TRK_MINNOW_DOLPHIN}

* Update configure.py and project.py for new libs structure

* Refactor `#include <dolphin/x.h>` -> `<x.h>`

* Remove `__REVOLUTION_SDK__` forwards from dolphin

* Fix dolphin/ references in revolution

* Wrap `#include <dolphin.h>` in `!__REVOLUTION_SDK__`

* Always build TRK against dolphin headers

* Resolve revolution SDK header resolution issues

libs/JSystem/src/JSupport/JSUInputStream.cpp

@@ -0,0 +1,91 @@
+#include "JSystem/JSystem.h" // IWYU pragma: keep
+
+#include "JSystem/JSupport/JSUInputStream.h"
+#include "JSystem/JSupport/JSURandomInputStream.h"
+#ifdef __REVOLUTION_SDK__
+#include <revolution.h>
+#else
+#include <dolphin.h>
+#endif
+
+JSUInputStream::~JSUInputStream() {
+    if (!isGood()) {
+        OS_REPORT("JSUInputStream: occur error.\n");
+    }
+}
+
+s32 JSUInputStream::read(void* buffer, s32 numBytes) {
+    s32 bytesRead = readData(buffer, numBytes);
+    if (bytesRead != numBytes) {
+        setState(IOS_STATE_1);
+    }
+    return bytesRead;
+}
+
+char* JSUInputStream::read(char* str) {
+    u16 sp8;
+    if (readData(&sp8, sizeof(sp8)) != sizeof(sp8)) {
+        *str = 0;
+        setState(IOS_STATE_1);
+        return 0;
+    }
+
+    s32 len = readData(str, sp8);
+    str[len] = 0;
+    if (len != sp8) {
+        setState(IOS_STATE_1);
+    }
+    return str;
+}
+
+s32 JSUInputStream::skip(s32 count) {
+    s32 skipCount;
+    for (skipCount = 0; skipCount < count; skipCount++) {
+        u8 buffer;
+        if (readData(&buffer, sizeof(buffer)) != sizeof(buffer)) {
+            setState(IOS_STATE_1);
+            break;
+        }
+    }
+
+    return skipCount;
+}
+
+s32 JSURandomInputStream::align(s32 alignment) {
+    s32 seekLen = 0;
+    s32 currentPos = getPosition();
+
+    s32 offset = (alignment - 1 + currentPos) & ~(alignment - 1);
+    s32 alignmentOffset = offset - currentPos;
+
+    if (alignmentOffset != 0) {
+        seekLen = seekPos(offset, JSUStreamSeekFrom_SET);
+        if (seekLen != alignmentOffset) {
+            setState(IOS_STATE_1);
+        }
+    }
+    return alignmentOffset;
+}
+
+s32 JSURandomInputStream::skip(s32 param_0) {
+    s32 val = seekPos(param_0, JSUStreamSeekFrom_CUR);
+    if (val != param_0) {
+        setState(IOS_STATE_1);
+    }
+    return val;
+}
+
+s32 JSURandomInputStream::peek(void* buffer, s32 numBytes) {
+    s32 oldPos = getPosition();
+    s32 bytesRead = read(buffer, numBytes);
+    if (bytesRead != 0) {
+        seekPos(oldPos, JSUStreamSeekFrom_SET);
+    }
+    return bytesRead;
+}
+
+s32 JSURandomInputStream::seek(s32 param_0, JSUStreamSeekFrom param_1) {
+    s32 seekResult = seekPos(param_0, param_1);
+    clrState(IOS_STATE_1);
+    return seekResult;
+}