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engines/kyra/graphics/screen_eob_towns.cpp

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+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+ #ifdef ENABLE_EOB
+
+#include "kyra/resource/resource.h"
+#include "graphics/sjis.h"
+
+namespace Kyra {
+
+void Screen_EoB::decodeSHP(const uint8 *data, int dstPage) {
+	int32 bytesLeft = READ_LE_UINT32(data);
+	const uint8 *src = data + 4;
+	uint8 *dst = getPagePtr(dstPage);
+
+	if (bytesLeft < 0) {
+		memcpy(dst, data, 64000);
+		return;
+	}
+
+	while (bytesLeft > 0) {
+		uint8 code = *src++;
+		bytesLeft--;
+
+		for (int i = 8; i; i--) {
+			if (code & 0x80) {
+				uint16 copyOffs = (src[0] << 4) | (src[1] >> 4);
+				uint8 count = (src[1] & 0x0F) + 3;
+				src += 2;
+				bytesLeft -= 2;
+				const uint8 *copySrc = dst - 1 - copyOffs;
+				while (count--)
+					*dst++ = *copySrc++;
+			} else if (bytesLeft) {
+				*dst++ = *src++;
+				bytesLeft--;
+			} else {
+				break;
+			}
+			code <<= 1;
+		}
+	}
+}
+
+void Screen_EoB::convertToHiColor(int page) {
+	if (!_16bitPalette)
+		return;
+	uint16 *dst = (uint16 *)getPagePtr(page);
+	memcpy(_convertHiColorBuffer, dst, SCREEN_H * SCREEN_W);
+	uint8 *src = _convertHiColorBuffer;
+	for (int s = SCREEN_H * SCREEN_W; s; --s)
+		*dst++ = _16bitPalette[*src++];
+}
+
+void Screen_EoB::shadeRect(int x1, int y1, int x2, int y2, int shadingLevel) {
+	if (!_16bitPalette)
+		return;
+
+	int l = _16bitShadingLevel;
+	_16bitShadingLevel = shadingLevel;
+
+	if (_curPage == 0 || _curPage == 1)
+		addDirtyRect(x1, y1, x2 - x1 + 1, y2 - y1 + 1);
+
+	uint16 *dst = (uint16*)(getPagePtr(_curPage) + y1 * SCREEN_W * _bytesPerPixel + x1 * _bytesPerPixel);
+
+	for (; y1 < y2; ++y1) {
+		uint16 *ptr = dst;
+		for (int i = 0; i < x2 - x1; i++) {
+			*ptr = shade16bitColor(*ptr);
+			ptr++;
+		}
+		dst += SCREEN_W;
+	}
+
+	_16bitShadingLevel = l;
+}
+
+SJISFontLarge::SJISFontLarge(Common::SharedPtr<Graphics::FontSJIS> &font) : SJISFont(font, 0, false, false, 0) {
+}
+
+int SJISFontLarge::getHeight() const {
+	return _font->getFontHeight();
+}
+
+int SJISFontLarge::getWidth() const {
+	return _font->getMaxFontWidth();
+}
+
+int SJISFontLarge::getCharWidth(uint16 c) const {
+	if (c <= 0x7F || (c >= 0xA1 && c <= 0xDF))
+		return _font->getCharWidth('a');
+	else
+		return getWidth();
+}
+
+void SJISFontLarge::drawChar(uint16 c, byte *dst, int pitch, int) const {
+	_font->setDrawingMode(Graphics::FontSJIS::kDefaultMode);
+	_font->toggleFatPrint(false);
+	_font->drawChar(dst, c, 320, 1, _colorMap[1], _colorMap[0], 320, 200);
+}
+
+SJISFont12x12::SJISFont12x12(const uint16 *searchTable) : _height(6), _width(6), _data(0), _colorMap(nullptr) {
+	assert(searchTable);
+	for (int i = 0; i < 148; i++)
+		_searchTable[searchTable[i]] = i + 1;
+}
+
+bool SJISFont12x12::load(Common::SeekableReadStream &file) {
+	delete[] _data;
+	int size = 148 * 24;
+	if (file.size() < size)
+		return false;
+
+	_data = new uint8[size];
+	file.read(_data, size);
+
+	return true;
+}
+
+void SJISFont12x12::unload() {
+	delete[] _data;
+	_data = 0;
+	_searchTable.clear();
+}
+
+void SJISFont12x12::drawChar(uint16 c, byte *dst, int pitch, int) const {
+	if (!_searchTable.contains(c))
+		return;
+
+	const uint8 *src = _data + (_searchTable[c] - 1) * 24;
+	uint8 color1 = _colorMap[1];
+
+	int bt = 0;
+	uint16 chr = 0;
+
+	for (int i = 0; i < 192; ++i) {
+		if (!bt) {
+			chr = *src++;
+			bt = 8;
+		}
+		if (chr & 0x80)
+			*dst = color1;
+		dst++;
+		if (--bt)
+			chr <<= 1;
+		else if (i & 8)
+			dst += (pitch - 16);
+	}
+}
+
+} // End of namespace Kyra
+
+#endif // ENABLE_EOB