MOHAWK: Preload all the PE cursors on startup

We were previously reloading the current cursor from raw data on each
frame.

3 files changed, 29 insertions, 16 deletions

diff --git a/engines/mohawk/cursors.cpp b/engines/mohawk/cursors.cpp
index b78f71a71d..ebc556137a 100644
--- a/engines/mohawk/cursors.cpp
+++ b/engines/mohawk/cursors.cpp
@@ -251,28 +251,33 @@ void LivingBooksCursorManager_v2::setCursor(const Common::String &name) {
 }
 
 PECursorManager::PECursorManager(const Common::String &appName) {
-	_exe = new Common::PEResources();
-
-	if (!_exe->loadFromEXE(appName)) {
+	Common::PEResources exe;
+	if (!exe.loadFromEXE(appName)) {
 		// Not all have cursors anyway, so this is not a problem
-		delete _exe;
-		_exe = 0;
+		return;
+	}
+
+	const Common::Array<Common::WinResourceID> cursorGroups = exe.getNameList(Common::kPEGroupCursor);
+
+	_cursors.resize(cursorGroups.size());
+	for (uint i = 0; i < cursorGroups.size(); i++) {
+		_cursors[i].id = cursorGroups[i].getID();
+		_cursors[i].cursorGroup = Graphics::WinCursorGroup::createCursorGroup(exe, cursorGroups[i]);
 	}
 }
 
 PECursorManager::~PECursorManager() {
-	delete _exe;
+	for (uint i = 0; i < _cursors.size(); i++) {
+		delete _cursors[i].cursorGroup;
+	}
 }
 
 void PECursorManager::setCursor(uint16 id) {
-	if (_exe) {
-		Graphics::WinCursorGroup *cursorGroup = Graphics::WinCursorGroup::createCursorGroup(*_exe, id);
-
-		if (cursorGroup) {
-			Graphics::Cursor *cursor = cursorGroup->cursors[0].cursor;
+	for (uint i = 0; i < _cursors.size(); i++) {
+		if (_cursors[i].id == id) {
+			Graphics::Cursor *cursor = _cursors[i].cursorGroup->cursors[0].cursor;
 			CursorMan.replaceCursor(cursor->getSurface(), cursor->getWidth(), cursor->getHeight(), cursor->getHotspotX(), cursor->getHotspotY(), cursor->getKeyColor());
 			CursorMan.replaceCursorPalette(cursor->getPalette(), 0, 256);
-			delete cursorGroup;
 			return;
 		}
 	}
diff --git a/engines/mohawk/cursors.h b/engines/mohawk/cursors.h
index 742ae30107..d0d38c9b46 100644
--- a/engines/mohawk/cursors.h
+++ b/engines/mohawk/cursors.h
@@ -28,11 +28,14 @@
 namespace Common {
 class MacResManager;
 class NEResources;
-class PEResources;
 class SeekableReadStream;
 class String;
 }
 
+namespace Graphics {
+struct WinCursorGroup;
+}
+
 #include "mohawk/resource.h"
 
 namespace Mohawk {
@@ -170,10 +173,15 @@ public:
 	~PECursorManager();
 
 	void setCursor(uint16 id);
-	bool hasSource() const { return _exe != 0; }
+	bool hasSource() const { return !_cursors.empty(); }
 
 private:
-	Common::PEResources *_exe;
+	struct CursorItem {
+		uint16 id;
+		Graphics::WinCursorGroup *cursorGroup;
+	};
+
+	Common::Array<CursorItem> _cursors;
 };
 
 } // End of namespace Mohawk
diff --git a/engines/mohawk/riven_stacks/jspit.cpp b/engines/mohawk/riven_stacks/jspit.cpp
index 216fdd5745..cd3b4baf51 100644
--- a/engines/mohawk/riven_stacks/jspit.cpp
+++ b/engines/mohawk/riven_stacks/jspit.cpp
@@ -258,7 +258,7 @@ void JSpit::xvga1300_carriage(uint16 argc, uint16 *argv) {
 	_vm->getCard()->drawPicture(1);
 	_vm->_gfx->applyScreenUpdate();
 
-	_vm->_cursor->setCursor(3000);
+	_vm->_cursor->setCursor(kRivenMainCursor);
 	mouseForceUp();
 
 	if (_vm->_vars["jgallows"] == 1) {