Initial commit

engines/sherlock/surface.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 "sherlock/surface.h"
+#include "sherlock/fonts.h"
+#include "sherlock/sherlock.h"
+
+namespace Sherlock {
+
+BaseSurface::BaseSurface() : Graphics::Screen(0, 0), Fonts() {
+	free();		// Free the 0x0 surface allocated by Graphics::Screen
+}
+
+BaseSurface::BaseSurface(int width_, int height_) : Graphics::Screen(width_, height_),
+		Fonts() {
+	create(width_, height_);
+}
+
+BaseSurface::BaseSurface(int width_, int height_, const Graphics::PixelFormat &pf) :
+		Graphics::Screen(width_, height_, pf), Fonts() {
+}
+
+void BaseSurface::writeString(const Common::String &str, const Common::Point &pt, uint overrideColor) {
+	Fonts::writeString(this, str, pt, overrideColor);
+}
+
+void BaseSurface::writeFancyString(const Common::String &str, const Common::Point &pt, uint overrideColor1, uint overrideColor2) {
+	writeString(str, Common::Point(pt.x, pt.y), overrideColor1);
+	writeString(str, Common::Point(pt.x + 1, pt.y), overrideColor1);
+	writeString(str, Common::Point(pt.x + 2, pt.y), overrideColor1);
+	writeString(str, Common::Point(pt.x, pt.y + 1), overrideColor1);
+	writeString(str, Common::Point(pt.x + 2, pt.y + 1), overrideColor1);
+	writeString(str, Common::Point(pt.x, pt.y + 2), overrideColor1);
+	writeString(str, Common::Point(pt.x + 1, pt.y + 2), overrideColor1);
+	writeString(str, Common::Point(pt.x + 2, pt.y + 2), overrideColor1);
+	writeString(str, Common::Point(pt.x + 1, pt.y + 1), overrideColor2);
+}
+
+void BaseSurface::SHtransBlitFrom(const ImageFrame &src, const Common::Point &pt,
+		bool flipped, int scaleVal) {
+	Common::Point drawPt(pt.x + src.sDrawXOffset(scaleVal), pt.y + src.sDrawYOffset(scaleVal));
+	SHtransBlitFrom(src._frame, drawPt, flipped, scaleVal);
+}
+
+void BaseSurface::SHtransBlitFrom(const Graphics::Surface &src, const Common::Point &pt,
+		bool flipped, int scaleVal) {
+	Common::Rect srcRect(0, 0, src.w, src.h);
+	Common::Rect destRect(pt.x, pt.y, pt.x + src.w * SCALE_THRESHOLD / scaleVal,
+		pt.y + src.h * SCALE_THRESHOLD / scaleVal);
+
+	Graphics::Screen::transBlitFrom(src, srcRect, destRect, IS_3DO ? 0 : TRANSPARENCY,
+		flipped);
+}
+
+void BaseSurface::SHoverrideBlitFrom(const ImageFrame &src, const Common::Point &pt,
+		int overrideColor) {
+	Common::Point drawPt(pt.x + src.sDrawXOffset(SCALE_THRESHOLD), pt.y + src.sDrawYOffset(SCALE_THRESHOLD));
+	SHoverrideBlitFrom(src._frame, drawPt, overrideColor);
+}
+
+void BaseSurface::SHoverrideBlitFrom(const Graphics::Surface &src, const Common::Point &pt,
+		int overrideColor) {
+	Common::Rect srcRect(0, 0, src.w, src.h);
+	Common::Rect destRect(pt.x, pt.y, pt.x + src.w, pt.y + src.h);
+	clip(srcRect, destRect);
+
+	const uint32 transColor = IS_3DO ? 0 : TRANSPARENCY;
+
+	for (int y = 0; y < destRect.height(); y++) {
+		for (int x = 0; x < destRect.width(); x++) {
+			const uint32 srcVal = src.getPixel(srcRect.left + x, srcRect.top + y);
+			if (srcVal == transColor)
+				continue;
+			if (!IS_3DO) {
+				setPixel(destRect.left + x, destRect.top + y, overrideColor);
+			} else {
+				// TODO: actually override the color properly, by mixing it
+				// with the source color
+				setPixel(destRect.left + x, destRect.top + y, srcVal);
+			}
+		}
+	}
+}
+
+void BaseSurface::SHbitmapBlitFrom(const byte *src, int widthSrc, int heightSrc, int pitchSrc, const Common::Point &pt,
+				   int overrideColor) {
+	const byte *ptr = src;
+	int yin = 0, yout = pt.y;
+	int xin = 0, xout = pt.x;
+	byte bit = 0x80;
+	int ymax = MIN(heightSrc, h - pt.y);
+	int xmax = MIN(widthSrc, w - pt.x);
+	int pitchskip = pitchSrc - (xmax / 8);
+	for (yin = 0; yin < ymax; yin++, yout++) {
+		bit = 0x80;
+		for (xin = 0, xout = pt.x; xin < xmax; xin++, xout++) {
+			if (*ptr & bit)
+				setPixel(xout, yout, overrideColor);
+			bit >>= 1;
+			if (!bit) {
+				bit = 0x80;
+				ptr++;
+			}
+		}
+		ptr += pitchskip;
+	}
+}
+
+} // End of namespace Sherlock