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engines/agds/font.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/>.
+ *
+ */
+
+#include "agds/font.h"
+#include "graphics/managed_surface.h"
+
+namespace AGDS {
+
+Font::Font(Graphics::ManagedSurface *surface, int gw, int gh) : _surface(surface),
+																_glyphW(gw), _glyphH(gh),
+																_cellW(surface->w / 16), _cellH(surface->h / 16) {
+
+	// debug("surface cell %dx%d", _cellW, _cellH);
+	for (int y = 0; y < 16; ++y) {
+		for (int x = 0; x < 16; ++x) {
+			const uint32 *pixels = static_cast<uint32 *>(_surface->getBasePtr(x * _cellW, y * _cellH));
+			int w;
+			int ch = (y << 4) | x;
+			for (w = 0; w <= _glyphW; ++w, ++pixels) {
+				uint8 r, g, b, a;
+				// debug("%d color #%08x", ch, *pixels);
+				surface->format.colorToARGB(*pixels, r, g, b, a);
+				// debug("%d %d %d %d", r, g, b, a);
+				if (r == 0) // fixme: mapped incorrectly
+					break;
+			}
+			_width[ch] = w;
+		}
+	}
+}
+
+void Font::drawChar(Graphics::Surface *dst, uint32 chr, int x, int y, uint32 color) const {
+	if (chr >= 0x100)
+		return;
+
+	Common::Rect srcRect(getCharWidth(chr), _glyphH);
+	srcRect.moveTo(_cellW * (chr & 0x0f), _cellH * (chr >> 4));
+	if (!srcRect.isEmpty())
+		_surface->blendBlitTo(*dst, x, y, Graphics::FLIP_NONE, &srcRect);
+}
+
+} // namespace AGDS