Initial commit

engines/titanic/support/direct_draw_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 "titanic/support/direct_draw_surface.h"
+
+namespace Titanic {
+
+DirectDrawSurface::DirectDrawSurface() : _surface(nullptr),
+		_disposeAfterUse(DisposeAfterUse::YES) {
+}
+
+DirectDrawSurface::~DirectDrawSurface() {
+	free();
+}
+
+void DirectDrawSurface::create(Graphics::ManagedSurface *surface) {
+	free();
+	_surface = surface;
+	_disposeAfterUse = DisposeAfterUse::NO;
+}
+
+void DirectDrawSurface::create(int w, int h, int bpp) {
+	assert(bpp == 16 || bpp == 32);
+	Graphics::PixelFormat pixelFormat = (bpp == 32) ?
+		Graphics::PixelFormat(4, 8, 8, 8, 8, 24, 16, 8, 0) :
+		Graphics::PixelFormat(2, 5, 6, 5, 0, 11, 5, 0, 0);
+
+	_surface = new Graphics::ManagedSurface(w, h, pixelFormat);
+	_disposeAfterUse = DisposeAfterUse::YES;
+}
+
+void DirectDrawSurface::free() {
+	if (_disposeAfterUse == DisposeAfterUse::YES)
+		delete _surface;
+	_surface = nullptr;
+	_disposeAfterUse = DisposeAfterUse::NO;
+}
+
+Graphics::ManagedSurface *DirectDrawSurface::lock(const Rect *bounds, int flags) {
+	assert(!_surface->empty());
+	return _surface;
+}
+
+void DirectDrawSurface::unlock() {
+	assert(_surface->w != 0 && _surface->h != 0);
+}
+
+void DirectDrawSurface::fill(const Rect *bounds, uint32 color) {
+	Rect tempBounds;
+
+	assert(_surface);
+	if (bounds) {
+		// Bounds are provided, clip them to the bounds of this surface
+		tempBounds = *bounds;
+		tempBounds.clip(Rect(0, 0, _surface->w, _surface->h));
+	} else {
+		// No bounds provided, so use the entire surface
+		tempBounds = Rect(0, 0, _surface->w, _surface->h);
+	}
+
+	// Fill the area
+	_surface->fillRect(tempBounds, color);
+}
+
+void DirectDrawSurface::fillRect(Rect *rect, byte r, byte g, byte b) {
+	uint color = _surface->format.RGBToColor(r, g, b);
+	Rect tempRect = rect ? *rect : Rect(0, 0, getWidth(), getHeight());
+
+	_surface->fillRect(tempRect, color);
+}
+
+void DirectDrawSurface::blit(const Rect &destRect, DirectDrawSurface *srcSurface, Rect &srcRect) {
+	assert(srcSurface);
+	if (!destRect.isEmpty())
+		_surface->transBlitFrom(*srcSurface->_surface, srcRect, destRect, (uint)-1);
+}
+
+void DirectDrawSurface::blit(const Point &destPos, DirectDrawSurface *srcSurface, Rect *bounds) {
+	if (bounds)
+		_surface->blitFrom(*srcSurface->_surface, *bounds, destPos);
+	else
+		_surface->blitFrom(*srcSurface->_surface, destPos);
+}
+
+} // End of namespace Titanic