Initial commit

backends/graphics/riscossdl/riscossdl-graphics.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 "common/scummsys.h"
+
+#if defined(RISCOS) && defined(SDL_BACKEND)
+
+#include "backends/graphics/riscossdl/riscossdl-graphics.h"
+#include "common/translation.h"
+
+static OSystem::GraphicsMode s_supportedGraphicsModes[] = {
+	{"surfacesdl", _s("SDL Surface"),                    GFX_SURFACESDL},
+	{"palettesdl", _s("SDL Surface (forced 8bpp mode)"), GFX_PALETTESDL},
+	{nullptr, nullptr, 0}
+};
+
+const OSystem::GraphicsMode *RISCOSSdlGraphicsManager::getSupportedGraphicsModes() const {
+	return s_supportedGraphicsModes;
+}
+
+bool RISCOSSdlGraphicsManager::hasFeature(OSystem::Feature f) const {
+	if (f == OSystem::kFeatureVSync)
+		return true;
+	return SurfaceSdlGraphicsManager::hasFeature(f);
+}
+
+void RISCOSSdlGraphicsManager::initGraphicsSurface() {
+	Uint32 flags = 0;
+	int bpp = 0;
+
+	if (_videoMode.fullscreen)
+		flags |= SDL_FULLSCREEN;
+
+	if (_videoMode.vsync && _videoMode.fullscreen) {
+		flags |= SDL_HWSURFACE | SDL_DOUBLEBUF;
+	} else {
+		/* Hardware surfaces and double buffering aren't supported in windowed mode on RISC OS. */
+		flags |= SDL_SWSURFACE;
+	}
+
+	switch (_videoMode.mode) {
+	case GFX_SURFACESDL:
+		bpp = 16;
+		flags |= SDL_ANYFORMAT;
+		break;
+	case GFX_PALETTESDL:
+		bpp = 8;
+		flags |= SDL_HWPALETTE;
+		break;
+	default:
+		break;
+	}
+
+	_hwScreen = SDL_SetVideoMode(_videoMode.hardwareWidth, _videoMode.hardwareHeight, bpp, flags);
+	_isDoubleBuf = flags & SDL_DOUBLEBUF;
+	_isHwPalette = flags & SDL_HWPALETTE;
+}
+
+#endif