3DS: Initial commit

backends/platform/3ds/3ds.mk

@@ -0,0 +1,53 @@
+TARGET := scummvm
+
+APP_TITLE       := ScummVM
+APP_DESCRIPTION := Point-and-click adventure game engines
+APP_AUTHOR      := ScummVM Team
+APP_ICON        := backends/platform/3ds/icon.png
+
+ARCH     := -march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft
+CXXFLAGS += -std=gnu++11
+ASFLAGS  += -mfloat-abi=hard
+LDFLAGS  += -specs=3dsx.specs $(ARCH) -L$(DEVKITPRO)/libctru/lib -L$(DEVKITPRO)/portlibs/3ds/lib
+
+.PHONY: clean_3ds
+
+all: $(TARGET).3dsx
+
+clean: clean_3ds
+
+clean_3ds:
+	$(RM) $(TARGET).3dsx
+
+$(TARGET).smdh: $(APP_ICON) $(MAKEFILE_LIST)
+	@smdhtool --create "$(APP_TITLE)" "$(APP_DESCRIPTION)" "$(APP_AUTHOR)" $(APP_ICON) $@
+	@echo built ... $(notdir $@)
+
+$(TARGET).3dsx: $(EXECUTABLE) $(TARGET).smdh
+	@3dsxtool $< $@ --smdh=$(TARGET).smdh
+	@echo built ... $(notdir $@)
+
+#---------------------------------------------------------------------------------
+# rules for assembling GPU shaders
+#---------------------------------------------------------------------------------
+define shader-as
+	$(eval FILEPATH := $(patsubst %.shbin.o,%.shbin,$@))
+	$(eval FILE := $(patsubst %.shbin.o,%.shbin,$(notdir $@)))
+	picasso -o $(FILEPATH) $1
+	bin2s $(FILEPATH) | $(AS) -o $@
+	echo "extern const u8" `(echo $(FILE) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"_end[];" > `(echo $(FILEPATH) | tr . _)`.h
+	echo "extern const u8" `(echo $(FILE) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"[];" >> `(echo $(FILEPATH) | tr . _)`.h
+	echo "extern const u32" `(echo $(FILE) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`_size";" >> `(echo $(FILEPATH) | tr . _)`.h
+endef
+
+%.shbin.o : %.v.pica %.g.pica
+	@echo $(notdir $^)
+	@$(call shader-as,$^)
+
+%.shbin.o : %.v.pica
+	@echo $(notdir $<)
+	@$(call shader-as,$<)
+
+%.shbin.o : %.shlist
+	@echo $(notdir $<)
+	@$(call shader-as,$(foreach file,$(shell cat $<),$(dir $<)/$(file)))

backends/platform/3ds/gui.cpp

@@ -0,0 +1,46 @@
+/* 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 "backends/platform/3ds/gui.h"
+#include "common/system.h"
+
+StatusMessageDialog* StatusMessageDialog::_opened = 0;
+
+StatusMessageDialog::StatusMessageDialog(const Common::String &message, uint32 duration)
+	: MessageDialog(message, 0, 0) {
+	_timer = g_system->getMillis() + duration;
+	if (_opened)
+		_opened->close();
+	_opened = this;
+}
+
+void StatusMessageDialog::handleTickle() {
+	MessageDialog::handleTickle();
+	if (g_system->getMillis() > _timer)
+		close();
+}
+
+void StatusMessageDialog::close() {
+    GUI::Dialog::close();
+	if (_opened)
+		_opened = 0;
+}

backends/platform/3ds/gui.h

@@ -0,0 +1,41 @@
+/* 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.
+ *
+ */
+
+#ifndef GUI_3DS_H
+#define GUI_3DS_H
+
+#include "gui/message.h"
+
+class StatusMessageDialog : public GUI::MessageDialog {
+public:
+	StatusMessageDialog(const Common::String &message, uint32 duration);
+
+	void handleTickle();
+
+protected:
+	virtual void close();
+
+	uint32 _timer;
+	static StatusMessageDialog* _opened;
+};
+
+#endif // GUI_3DS_H

backends/platform/3ds/main.cpp

@@ -0,0 +1,50 @@
+/* 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.
+ *
+ */
+
+#define FORBIDDEN_SYMBOL_ALLOW_ALL
+
+#include "osystem.h"
+#include <3ds.h>
+
+int main(int argc, char *argv[]) {
+	// Initialize basic libctru stuff
+	gfxInitDefault();
+	cfguInit();
+	osSetSpeedupEnable(true);
+// 	consoleInit(GFX_TOP, NULL);
+
+	g_system = new OSystem_3DS();
+	assert(g_system);
+
+	// Invoke the actual ScummVM main entry point
+// 	if (argc > 2)
+// 		res = scummvm_main(argc-2, &argv[2]);
+// 	else
+// 		res = scummvm_main(argc, argv);
+	scummvm_main(0, nullptr);
+
+	delete dynamic_cast<OSystem_3DS*>(g_system);
+
+	cfguExit();
+	gfxExit();
+	return 0;
+}

backends/platform/3ds/module.mk

@@ -0,0 +1,16 @@
+MODULE := backends/platform/3ds
+
+MODULE_OBJS := \
+	main.o \
+	shader.shbin.o \
+	sprite.o \
+	gui.o \
+	osystem.o \
+	osystem-graphics.o \
+	osystem-audio.o \
+	osystem-events.o
+
+# We don't use rules.mk but rather manually update OBJS and MODULE_DIRS.
+MODULE_OBJS := $(addprefix $(MODULE)/, $(MODULE_OBJS))
+OBJS := $(MODULE_OBJS) $(OBJS)
+MODULE_DIRS += $(sort $(dir $(MODULE_OBJS)))

backends/platform/3ds/osystem-audio.cpp

@@ -0,0 +1,107 @@
+/* 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 "osystem.h"
+
+static bool exitAudioThread = false;
+static bool hasAudio = false;
+
+static void audioThreadFunc(void* arg) {
+	Audio::MixerImpl *mixer = (Audio::MixerImpl *) arg;
+	OSystem_3DS *osys = (OSystem_3DS*)g_system;
+
+	int i;
+	const int channel = 0;
+	int bufferIndex = 0;
+	const int bufferCount = 3;
+	const int bufferSize = 80000; // Can't be too small, based on delayMillis duration
+	const int sampleRate = 22050;
+	int sampleLen = 0;
+	uint32 lastTime = osys->getMillis(true);
+	uint32 time = lastTime;
+	ndspWaveBuf buffers[bufferCount];
+
+	for(i = 0; i < bufferCount; ++i) {
+		memset(&buffers[i], 0, sizeof(ndspWaveBuf));
+		buffers[i].data_vaddr = linearAlloc(bufferSize);
+		buffers[i].looping = false;
+		buffers[i].status = NDSP_WBUF_FREE;
+	}
+
+	ndspChnReset(channel);
+	ndspChnSetInterp(channel, NDSP_INTERP_LINEAR);
+	ndspChnSetRate(channel, sampleRate);
+	ndspChnSetFormat(channel, NDSP_FORMAT_STEREO_PCM16);
+
+	while(!exitAudioThread) {
+		bufferIndex++;
+		bufferIndex %= bufferCount;
+		ndspWaveBuf* buf = &buffers[bufferIndex];
+
+		osys->delayMillis(100); // Note: Increasing the delay requires a bigger buffer
+
+		time = osys->getMillis(true);
+		sampleLen = (time - lastTime) * 22 * 4; // sampleRate / 1000 * channelCount * sizeof(int16);
+		lastTime = time;
+
+		if (sampleLen > 0) {
+			buf->nsamples = mixer->mixCallback(buf->data_adpcm, sampleLen);
+			if (buf->nsamples > 0) {
+				DSP_FlushDataCache(buf->data_vaddr, bufferSize);
+				ndspChnWaveBufAdd(channel, buf);
+			}
+		}
+	}
+
+	for(i = 0; i < bufferCount; ++i)
+		linearFree(buffers[i].data_pcm8);
+}
+
+void OSystem_3DS::initAudio() {
+	_mixer = new Audio::MixerImpl(this, 22050);
+
+	hasAudio = R_SUCCEEDED(ndspInit());
+	_mixer->setReady(false);
+
+	if (hasAudio) {
+		s32 prio = 0;
+		svcGetThreadPriority(&prio, CUR_THREAD_HANDLE);
+		audioThread = threadCreate(&audioThreadFunc, _mixer, 32*1048, prio-1, -2, false);
+	}
+}
+
+void OSystem_3DS::destroyAudio() {
+	if (hasAudio) {
+		exitAudioThread = true;
+		threadJoin(audioThread, U64_MAX);
+		threadFree(audioThread);
+		ndspExit();
+	}
+
+	delete _mixer;
+	_mixer = 0;
+}
+
+Audio::Mixer *OSystem_3DS::getMixer() {
+	assert(_mixer);
+	return _mixer;
+}