ZVISION: Create RenderManager class and move code from image.cpp

engines/zvision/image.cpp → engines/zvision/render_manager.cpp

@@ -27,12 +27,14 @@
 
 #include "graphics/decoders/tga.h"
 
-#include "zvision/zvision.h"
+#include "zvision/render_manager.h"
 #include "zvision/lzss_read_stream.h"
 
 namespace ZVision {
 
-void ZVision::renderImageToScreen(const Common::String &fileName, uint32 x, uint32 y) {
+RenderManager::RenderManager(OSystem *system) : _system(system) {}
+
+void RenderManager::renderImageToScreen(const Common::String &fileName, uint32 x, uint32 y) {
 	Common::File file;
 
 	if (!file.open(fileName)) {
@@ -63,10 +65,9 @@ void ZVision::renderImageToScreen(const Common::String &fileName, uint32 x, uint
 
 		// Decode
 		Graphics::TGADecoder tga;
-		if (!tga.loadStream(file)) {
+		if (!tga.loadStream(file))
 			error("Error while reading TGA image");
-			return;
-		}
+		file.close();
 
 		const Graphics::Surface *tgaSurface = tga.getSurface();
 		_system->copyRectToScreen(tgaSurface->pixels, tgaSurface->pitch, x, y, tgaSurface->w, tgaSurface->h);

engines/zvision/render_manager.h

@@ -0,0 +1,70 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef ZVISION_RENDER_MANAGER_H
+#define ZVISION_RENDER_MANAGER_H
+
+#include "common/types.h"
+
+class OSystem;
+
+namespace Common {
+class String;
+}
+
+namespace ZVision {
+
+class RenderManager {
+public:
+	RenderManager(OSystem *system);
+
+public:
+	enum RenderState {
+		PANORAMA,
+		TILT,
+		FLAT
+	};
+
+private:
+	OSystem *_system;
+	RenderState _renderState;
+
+	struct {
+		uint16 fieldOfView;
+		uint16 linearScale;
+	} _panoramaOptions;
+
+	// TODO: See if tilt and panorama need to have separate options
+	struct {
+		uint16 fieldOfView;
+		uint16 linearScale;
+	} _tiltOptions;
+
+	bool _needsScreenUpdate;
+
+public:
+	void renderImageToScreen(const Common::String &fileName, uint32 x, uint32 y);
+};
+
+} // End of namespace ZVision
+
+#endif