Merge branch 'master' into phantom

1 files changed, 145 insertions, 0 deletions

diff --git a/engines/zvision/graphics/effects/wave.cpp b/engines/zvision/graphics/effects/wave.cpp
new file mode 100644
index 0000000000..d2887b3112
--- /dev/null
+++ b/engines/zvision/graphics/effects/wave.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 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.
+ *
+ */
+
+#include "common/scummsys.h"
+
+#include "zvision/graphics/effects/wave.h"
+
+#include "zvision/zvision.h"
+#include "zvision/graphics/render_manager.h"
+
+namespace ZVision {
+
+WaveFx::WaveFx(ZVision *engine, uint32 key, Common::Rect region, bool ported, int16 frames, int16 centerX, int16 centerY, float ampl, float waveln, float spd):
+	GraphicsEffect(engine, key, region, ported) {
+
+	_frame = 0;
+	_frameCount = frames;
+
+	_ampls.resize(_frameCount);
+	_halfWidth = _region.width() / 2;
+	_halfHeight = _region.height() / 2;
+
+	int32 frmsize = _halfWidth * _halfHeight;
+
+	float phase = 0;
+
+	int16 quarterWidth = _halfWidth / 2;
+	int16 quarterHeight = _halfHeight / 2;
+
+	for (int16 i = 0; i < _frameCount; i++) {
+		_ampls[i].resize(frmsize);
+
+		for (int16 y = 0; y < _halfHeight; y++)
+			for (int16 x = 0; x < _halfWidth; x++) {
+				int16 dx = (x - quarterWidth);
+				int16 dy = (y - quarterHeight);
+
+				_ampls[i][x + y * _halfWidth] = (int8)(ampl * sin(sqrt(dx * dx / (float)centerX + dy * dy / (float)centerY) / (-waveln * 3.1415926) + phase));
+			}
+		phase += spd;
+	}
+}
+
+WaveFx::~WaveFx() {
+	for (uint16 i = 0; i < _ampls.size(); i++)
+		_ampls[i].clear();
+	_ampls.clear();
+}
+
+const Graphics::Surface *WaveFx::draw(const Graphics::Surface &srcSubRect) {
+	for (int16 y = 0; y < _halfHeight; y++) {
+		uint16 *abc  = (uint16 *)_surface.getBasePtr(0, y);
+		uint16 *abc2  = (uint16 *)_surface.getBasePtr(0, _halfHeight + y);
+		uint16 *abc3  = (uint16 *)_surface.getBasePtr(_halfWidth, y);
+		uint16 *abc4  = (uint16 *)_surface.getBasePtr(_halfWidth, _halfHeight + y);
+
+		for (int16 x = 0; x < _halfWidth; x++) {
+			int8 amnt = _ampls[_frame][x + _halfWidth * y];
+
+			int16 nX = x + amnt;
+			int16 nY = y + amnt;
+
+			if (nX < 0)
+				nX = 0;
+			if (nX >= _region.width())
+				nX = _region.width() - 1;
+			if (nY < 0)
+				nY = 0;
+			if (nY >= _region.height())
+				nY = _region.height() - 1;
+			*abc = *(const uint16 *)srcSubRect.getBasePtr(nX, nY);
+
+			nX = x + amnt + _halfWidth;
+			nY = y + amnt;
+
+			if (nX < 0)
+				nX = 0;
+			if (nX >= _region.width())
+				nX = _region.width() - 1;
+			if (nY < 0)
+				nY = 0;
+			if (nY >= _region.height())
+				nY = _region.height() - 1;
+			*abc3 = *(const uint16 *)srcSubRect.getBasePtr(nX, nY);
+
+			nX = x + amnt;
+			nY = y + amnt + _halfHeight;
+
+			if (nX < 0)
+				nX = 0;
+			if (nX >= _region.width())
+				nX = _region.width() - 1;
+			if (nY < 0)
+				nY = 0;
+			if (nY >= _region.height())
+				nY = _region.height() - 1;
+			*abc2 = *(const uint16 *)srcSubRect.getBasePtr(nX, nY);
+
+			nX = x + amnt + _halfWidth;
+			nY = y + amnt + _halfHeight;
+
+			if (nX < 0)
+				nX = 0;
+			if (nX >= _region.width())
+				nX = _region.width() - 1;
+			if (nY < 0)
+				nY = 0;
+			if (nY >= _region.height())
+				nY = _region.height() - 1;
+			*abc4 = *(const uint16 *)srcSubRect.getBasePtr(nX, nY);
+
+			abc++;
+			abc2++;
+			abc3++;
+			abc4++;
+		}
+	}
+
+	return &_surface;
+}
+
+void WaveFx::update() {
+	_frame = (_frame + 1) % _frameCount;
+}
+
+} // End of namespace ZVision