From e07fe3f1a438b245b0a4dbf4506fe4c9d03d9258 Mon Sep 17 00:00:00 2001
From: Matthew Hoops
Date: Sun, 20 Feb 2011 02:12:35 -0500
Subject: STARTREK: Import my startrek engine

Now updated even
---
 engines/startrek/graphics.cpp | 133 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 133 insertions(+)
 create mode 100755 engines/startrek/graphics.cpp

(limited to 'engines/startrek/graphics.cpp')

diff --git a/engines/startrek/graphics.cpp b/engines/startrek/graphics.cpp
new file mode 100755
index 0000000000..e2ba26670c
--- /dev/null
+++ b/engines/startrek/graphics.cpp
@@ -0,0 +1,133 @@
+/* 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.
+ *
+ * $URL: https://scummvm-startrek.googlecode.com/svn/trunk/graphics.cpp $
+ * $Id: graphics.cpp 14 2010-05-26 15:44:12Z clone2727 $
+ *
+ */
+
+#include "startrek/graphics.h"
+
+#include "common/config-manager.h"
+#include "common/rendermode.h"
+#include "graphics/palette.h"
+
+namespace StarTrek {
+
+Graphics::Graphics(StarTrekEngine *vm) : _vm(vm), _egaMode(false) {
+	_font = 0;
+	_egaData = 0;
+
+	if (ConfMan.hasKey("render_mode"))
+		_egaMode = (Common::parseRenderMode(ConfMan.get("render_mode").c_str()) == Common::kRenderEGA) && (_vm->getGameType() != GType_STJR) && !(_vm->getFeatures() & GF_DEMO);
+
+	if (_vm->getGameType() == GType_ST25 && _vm->getPlatform() == Common::kPlatformDOS)
+		_font = new Font(_vm);
+}
+
+Graphics::~Graphics() {
+	if (_egaData)
+		free(_egaData);
+
+	delete _font;
+}
+
+void Graphics::setPalette(const char *paletteFile) {
+	// Set the palette from a PAL file
+
+	Common::SeekableReadStream *palStream = _vm->openFile(paletteFile);
+	byte *palette = new byte[256 * 3];
+	palStream->read(palette, 256 * 3);
+
+	// Expand color components
+	if (_vm->getPlatform() == Common::kPlatformDOS || _vm->getPlatform() == Common::kPlatformMacintosh)
+		for (uint16 i = 0; i < 256 * 3; i++)
+			palette[i] <<= 2;
+
+	_vm->_system->getPaletteManager()->setPalette(palette, 0, 256);
+
+	delete[] palette;
+	delete palStream;
+}
+
+void Graphics::loadEGAData(const char *filename) {
+	// Load EGA palette data
+	if (!_egaMode)
+		return;
+
+	if (!_egaData)
+		_egaData = (byte *)malloc(256);
+
+	Common::SeekableReadStream *egaStream = _vm->openFile(filename);
+	egaStream->read(_egaData, 256);
+	delete egaStream;
+}
+
+void Graphics::drawImage(const char *filename) {
+	// Draw a regular bitmap
+
+	Common::SeekableReadStream *imageStream = _vm->openFile(filename);
+	uint16 xoffset = (_vm->getPlatform() == Common::kPlatformAmiga) ? imageStream->readUint16BE() : imageStream->readUint16LE();
+	uint16 yoffset = (_vm->getPlatform() == Common::kPlatformAmiga) ? imageStream->readUint16BE() : imageStream->readUint16LE();
+	uint16 width = (_vm->getPlatform() == Common::kPlatformAmiga) ? imageStream->readUint16BE() : imageStream->readUint16LE();
+	uint16 height = (_vm->getPlatform() == Common::kPlatformAmiga) ? imageStream->readUint16BE() : imageStream->readUint16LE();	
+
+	byte *pixels = (byte *)malloc(width * height);
+
+	if (_egaMode && _egaData) {
+		// FIXME: This doesn't work right
+		for (uint32 i = 0; i < (uint32)(width * height); i++)
+			pixels[i] = _egaData[imageStream->readByte()];
+	} else {
+		imageStream->read(pixels, width * height);
+	}
+
+	_vm->_system->copyRectToScreen(pixels, width, xoffset, yoffset, width, height);
+	_vm->_system->updateScreen();
+}
+
+void Graphics::drawBackgroundImage(const char *filename) {
+	// Draw an stjr BGD image (palette built-in)
+
+	Common::SeekableReadStream *imageStream = _vm->openFile(filename);
+	byte *palette = new byte[256 * 3];
+	imageStream->read(palette, 256 * 3);
+
+	// Expand color components
+	for (uint16 i = 0; i < 256 * 3; i++)
+		palette[i] <<= 2;
+
+	uint16 xoffset = imageStream->readUint16LE();
+	uint16 yoffset = imageStream->readUint16LE();
+	uint16 width = imageStream->readUint16LE();
+	uint16 height = imageStream->readUint16LE();	
+
+	byte *pixels = (byte *)malloc(width * height);
+	imageStream->read(pixels, width * height);
+
+	_vm->_system->getPaletteManager()->setPalette(palette, 0, 256);
+	_vm->_system->copyRectToScreen(pixels, width, xoffset, yoffset, width, height);
+	_vm->_system->updateScreen();
+
+	delete[] palette;
+	delete imageStream;
+}
+
+}
-- 
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