Initial commit

backends/platform/sdl/amigaos/amigaos-main.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(__amigaos4__)
+
+#include "backends/fs/amigaos/amigaos-fs.h"
+#include "backends/platform/sdl/amigaos/amigaos.h"
+#include "backends/plugins/sdl/sdl-provider.h"
+#include "base/main.h"
+
+int main(int argc, char *argv[]) {
+
+	// Update support (AmiUpdate):
+	// This will save ScummVM's system application name and add it's binary
+	// path to a variable in the platforms native ENV(ARC) system.
+	const char *const appname = "ScummVM";
+
+	BPTR lock;
+	APTR reqwin;
+
+	// Obtain a lock to it's home directory.
+	if ((lock = IDOS->GetProgramDir())) {
+		TEXT progpath[2048];
+		TEXT apppath[1024] = "AppPaths";
+
+		if (IDOS->DevNameFromLock(lock,	progpath, sizeof(progpath),	DN_FULLPATH)) {
+			// Stop any "Please insert volume ..." type system requester.
+			reqwin = IDOS->SetProcWindow((APTR)-1);
+
+			// Set the AppPaths variable to the path the binary was run from.
+			IDOS->AddPart(apppath, appname, 1024);
+			IDOS->SetVar(apppath, progpath, -1, GVF_GLOBAL_ONLY|GVF_SAVE_VAR);
+
+			// Turn system requester back on.
+			IDOS->SetProcWindow(reqwin);
+		}
+	}
+
+	// Set a stack cookie to avoid crashes from a too low stack.
+	static const char *stack_cookie __attribute__((used)) = "$STACK: 4096000";
+
+	// Create our OSystem instance.
+	g_system = new OSystem_AmigaOS();
+	assert(g_system);
+
+	// Pre-initialize the backend.
+	g_system->init();
+
+#ifdef DYNAMIC_MODULES
+	PluginManager::instance().addPluginProvider(new SDLPluginProvider());
+#endif
+
+	// Invoke the actual ScummVM main entry point.
+	int res = scummvm_main(argc, argv);
+
+	// Free OSystem.
+	g_system->destroy();
+
+	return res;
+}
+
+#endif

backends/platform/sdl/amigaos/amigaos.cpp

@@ -0,0 +1,156 @@
+/* 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"
+
+#ifdef __amigaos4__
+
+#include "backends/platform/sdl/amigaos/amigaos.h"
+#include "backends/fs/amigaos/amigaos-fs-factory.h"
+#include "backends/dialogs/amigaos/amigaos-dialogs.h"
+
+static bool cleanupDone = false;
+
+#if SDL_VERSION_ATLEAST(3, 0, 0)
+static bool sdlGLLoadLibrary(const char *path) {
+	return SDL_GL_LoadLibrary(path);
+}
+#else
+static bool sdlGLLoadLibrary(const char *path) {
+	return SDL_GL_LoadLibrary(path) != 0;
+}
+#endif
+
+static void cleanup() {
+	if (!cleanupDone)
+		g_system->destroy();
+}
+
+OSystem_AmigaOS::~OSystem_AmigaOS() {
+	cleanupDone = true;
+}
+
+void OSystem_AmigaOS::init() {
+	// Register cleanup function to avoid unfreed signals
+	if (atexit(cleanup))
+		warning("Failed to register cleanup function via atexit()");
+
+	// Initialize File System Factory
+	_fsFactory = new AmigaOSFilesystemFactory();
+
+	// Invoke parent implementation of this method
+	OSystem_SDL::init();
+
+#if defined(USE_SYSDIALOGS)
+	_dialogManager = new AmigaOSDialogManager();
+#endif
+}
+
+bool OSystem_AmigaOS::hasFeature(Feature f) {
+#if defined(USE_SYSDIALOGS)
+	if (f == kFeatureSystemBrowserDialog)
+		return true;
+#endif
+
+	return OSystem_SDL::hasFeature(f);
+}
+
+void OSystem_AmigaOS::initBackend() {
+	// AmigaOS4 SDL provides two OpenGL implementations
+	// (OpenGL 1.3 with miniGL and OpenGL ES with OGLES2)
+	// This is chosen by setting the profile mask attribute
+	// before the first window creation but after init
+	int force = 0;
+	if (ConfMan.hasKey("opengl_implementation")) {
+		Common::String implem = ConfMan.get("opengl_implementation");
+		if (implem == "gl") {
+			force = 1;;
+		} else if (implem == "gles2") {
+			force = 2;
+		}
+	}
+
+	// If not forcing, try OGLES2 first
+	if (!force || force == 2) {
+		SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
+		SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
+		SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
+		if (!sdlGLLoadLibrary(NULL)) {
+			if (force) {
+				warning("OpenGL implementation chosen is unsupported, falling back");
+				force = 0;
+			}
+			// SDL doesn't seem to be clean when loading fail
+			SDL_GL_UnloadLibrary();
+			SDL_GL_ResetAttributes();
+		} else {
+			// Loading succeeded, don't try anything more
+			force = 2;
+		}
+	}
+	// If not forcing, next try miniGL
+	if (!force || force == 1) {
+		SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, 0);
+		SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 1);
+		SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
+		if (!sdlGLLoadLibrary(NULL)) {
+			if (force) {
+				warning("OpenGL implementation chosen is unsupported, falling back");
+				force = 0;
+			}
+			// SDL doesn't seem to be clean when loading fail
+			SDL_GL_UnloadLibrary();
+			SDL_GL_ResetAttributes();
+		} else {
+			// Loading succeeded, don't try anything more
+			force = 1;
+		}
+	}
+	// First time user defaults
+	ConfMan.registerDefault("audio_buffer_size", "2048");
+	ConfMan.registerDefault("extrapath", Common::Path("extras/"));
+	ConfMan.registerDefault("iconspath", Common::Path("icons/"));
+	ConfMan.registerDefault("pluginspath", Common::Path("plugins/"));
+	ConfMan.registerDefault("savepath", Common::Path("saves/"));
+	ConfMan.registerDefault("themepath", Common::Path("themes/"));
+	// First time .ini defaults
+	if (!ConfMan.hasKey("audio_buffer_size")) {
+		ConfMan.set("audio_buffer_size", "2048");
+	}
+	if (!ConfMan.hasKey("extrapath")) {
+		ConfMan.setPath("extrapath", "extras/");
+	}
+	if (!ConfMan.hasKey("iconspath")) {
+		ConfMan.setPath("iconspath", "icons/");
+	}
+	if (!ConfMan.hasKey("pluginspath")) {
+		ConfMan.setPath("pluginspath", "plugins/");
+	}
+	if (!ConfMan.hasKey("savepath")) {
+		ConfMan.setPath("savepath", "saves/");
+	}
+	if (!ConfMan.hasKey("themepath")) {
+		ConfMan.setPath("themepath", "themes/");
+	}
+	OSystem_SDL::initBackend();
+}
+
+#endif

backends/platform/sdl/amigaos/amigaos.h

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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/>.
+ *
+ */
+
+#ifndef PLATFORM_SDL_AMIGAOS_H
+#define PLATFORM_SDL_AMIGAOS_H
+
+#include "backends/platform/sdl/sdl.h"
+
+class OSystem_AmigaOS : public OSystem_SDL {
+public:
+	OSystem_AmigaOS() {}
+	virtual ~OSystem_AmigaOS();
+
+	bool hasFeature(Feature f) override;
+
+	void init() override;
+	void initBackend() override;
+};
+
+#endif

backends/platform/sdl/amigaos/amigaos.mk

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+# Special target to create an AmigaOS snapshot installation.
+#
+# WORKAROUNDS:
+#
+# 'mkdir' seems to incorrectly set permissions to path/dirs on AmigaOS.
+# Once a vanilla installation is created, none of the corresponding subdirs
+# are found or accessible (extras, themes, plugins), instead ScummVM will
+# report missing theme files and a missing valid translation.dat. Same with
+# cross-partition access (which make we wonder if it's a FS bug afterall).
+# Switching to AmigaOS' own "makedir" until there is a fix or other solution.
+#
+amigaosdist: $(EXECUTABLE) $(PLUGINS)
+	# Releases should always be completely fresh installs.
+	rm -rf $(AMIGAOSPATH)
+	makedir all $(AMIGAOSPATH)
+	$(CP) ${srcdir}/dists/amigaos/scummvm_drawer.info $(patsubst %/,%,$(AMIGAOSPATH)).info
+	$(CP) ${srcdir}/dists/amigaos/scummvm.info $(AMIGAOSPATH)/$(EXECUTABLE).info
+ifdef DIST_FILES_DOCS
+	makedir all $(AMIGAOSPATH)/doc
+	$(CP) $(DIST_FILES_DOCS) $(AMIGAOSPATH)/doc
+	$(foreach lang, $(DIST_FILES_DOCS_languages), makedir all $(AMIGAOSPATH)/doc/$(lang); $(CP) $(DIST_FILES_DOCS_$(lang)) $(AMIGAOSPATH)/doc/$(lang);)
+	# README.md and corresponding scripts must be in cwd
+	# when building out of tree.
+	$(CP) ${srcdir}/README.md README.tmp
+	$(CP) ${srcdir}/dists/amigaos/md2ag.rexx .
+	# (buildbot) LC_ALL is here to work around Debian bug #973647
+	LC_ALL=C rx md2ag.rexx README.tmp $(AMIGAOSPATH)/doc/
+	rm -f md2ag.rexx README.tmp
+endif
+	# Copy mandatory installation files.
+	makedir all $(AMIGAOSPATH)/extras
+ifdef DIST_FILES_ENGINEDATA
+	$(CP) $(DIST_FILES_ENGINEDATA) $(AMIGAOSPATH)/extras
+endif
+ifdef DIST_FILES_NETWORKING
+	$(CP) $(DIST_FILES_NETWORKING) $(AMIGAOSPATH)/extras
+endif
+ifdef DIST_FILES_VKEYBD
+	$(CP) $(DIST_FILES_VKEYBD) $(AMIGAOSPATH)/extras
+endif
+ifdef DIST_FILES_THEMES
+	makedir all $(AMIGAOSPATH)/themes
+	$(CP) $(DIST_FILES_THEMES) $(AMIGAOSPATH)/themes
+endif
+ifneq ($(DIST_FILES_SHADERS),)
+	makedir all $(AMIGAOSPATH)/extras/shaders
+	$(CP) $(DIST_FILES_SHADERS) $(AMIGAOSPATH)/extras/shaders
+endif
+ifdef DYNAMIC_MODULES
+	makedir all $(AMIGAOSPATH)/plugins
+	# Catch edge-case when no engines/plugins are compiled
+	# otherwise cp/strip will error out due to missing source files.
+ifneq ($(PLUGINS),)
+ifdef DEBUG_BUILD
+		# Preserve all debug information on debug builds
+		$(CP) $(PLUGINS) $(AMIGAOSPATH)/plugins/$(plugin)
+else
+		$(foreach plugin, $(PLUGINS), $(STRIP) $(plugin) -o $(AMIGAOSPATH)/$(plugin);)
+endif
+endif
+	makedir all $(AMIGAOSPATH)/sobjs
+	# AmigaOS installations, especially vanilla ones, won't have every
+	# mandatory shared library in place, let alone the correct versions.
+	# Extract and install compiled-in shared libraries to their own subdir.
+	$(CP) ${srcdir}/dists/amigaos/install_deps.rexx .
+	rx install_deps.rexx $(EXECUTABLE) $(AMIGAOSPATH)
+	rm -f install_deps.rexx
+endif
+ifdef DEBUG_BUILD
+	# Preserve all debug information on debug builds
+	$(CP) $(EXECUTABLE) $(AMIGAOSPATH)/$(EXECUTABLE)
+else
+	$(STRIP) $(EXECUTABLE) -o $(AMIGAOSPATH)/$(EXECUTABLE)
+endif