naomi,aw: embed default flash for some games

Needed to configure network on first run.

CMakeLists.txt

@@ -922,6 +922,19 @@ target_sources(${PROJECT_NAME} PRIVATE
 		core/hw/sh4/sh4_sched.h
 		core/hw/sh4/storeq.cpp)
 
+cmrc_add_resources(flycast-resources
+		WHENCE resources
+		resources/flash/gunsur2.nvmem.zip
+		resources/flash/otrigger.nvmem.zip
+		resources/flash/wldkicks.nvmem.zip	# free play
+		resources/flash/wldkicksj.nvmem.zip	# free play
+		resources/flash/wldkicksu.nvmem.zip	# free play
+		resources/flash/f355.nvmem.zip		# printer on
+		resources/flash/f355twin.nvmem.zip
+		resources/flash/f355twn2.nvmem.zip
+		resources/flash/dirtypig.nvmem.zip	# 4 players
+		resources/flash/dirtypig.nvmem2.zip)
+
 cmrc_add_resources(flycast-resources
 		fonts/printer_ascii8x16.bin
 		fonts/printer_ascii12x24.bin

core/archive/ZipArchive.cpp

@@ -88,3 +88,23 @@ u32 ZipArchiveFile::Read(void* buffer, u32 length)
 {
 	return zip_fread(zip_file, buffer, length);
 }
+
+bool ZipArchive::Open(const void *data, size_t size)
+{
+	zip_error_t error;
+	zip_source_t *source = zip_source_buffer_create(data, size, 0, &error);
+	if (source == nullptr)
+		return false;
+	zip = zip_open_from_source(source, 0, NULL);
+	if (zip == nullptr)
+		zip_source_free(source);
+	return zip != nullptr;
+}
+
+ArchiveFile *ZipArchive::OpenFirstFile()
+{
+	zip_file *zipFile = zip_fopen_index(zip, 0, 0);
+	if (zipFile == nullptr)
+		return nullptr;
+	return new ZipArchiveFile(zipFile);
+}

core/archive/ZipArchive.h

@@ -32,6 +32,9 @@ public:
 	ArchiveFile* OpenFile(const char* name) override;
 	ArchiveFile* OpenFileByCrc(u32 crc) override;
 
+	bool Open(const void *data, size_t size);
+	ArchiveFile *OpenFirstFile();
+
 private:
 	bool Open(const char* path) override;
 

core/hw/flashrom/flashrom.cpp

@@ -33,6 +33,12 @@ bool MemChip::Load(const std::string& file)
 	return false;
 }
 
+void MemChip::Load(const u8 *data, size_t size)
+{
+	verify(size == this->size - write_protect_size);
+	memcpy(this->data + write_protect_size, data, this->size - write_protect_size);
+}
+
 void WritableChip::Save(const std::string& file)
 {
 	FILE *f = nowide::fopen(file.c_str(), "wb");

core/hw/flashrom/flashrom.h

@@ -64,6 +64,7 @@ public:
 	virtual bool Reload() { return true; }
 	bool Load(const std::string &prefix, const std::string &names_ro,
 			const std::string &title);
+	void Load(const u8 *data, size_t size);
 	void digest(u8 md5Digest[16]);
 
 	virtual void Reset() {}
@@ -82,6 +83,8 @@ public:
 
 	bool Reload() override
 	{
+		if (load_filename.empty())
+			return false;
 		return Load(this->load_filename);
 	}
 	void Save(const std::string& file);

core/hw/flashrom/nvmem.cpp

@@ -22,6 +22,9 @@
 #include "hw/aica/aica_if.h"
 #include "reios/reios.h"
 #include "oslib/oslib.h"
+#include "archive/ZipArchive.h"
+#include <cmrc/cmrc.hpp>
+CMRC_DECLARE(flycast);
 
 extern bool bios_loaded;
 
@@ -193,13 +196,81 @@ static void fixUpDCFlash()
 	}
 }
 
+static std::unique_ptr<u8[]> loadFlashResource(const std::string& name, size_t& size)
+{
+	try {
+		cmrc::embedded_filesystem fs = cmrc::flycast::get_filesystem();
+		std::string fname = "flash/" + name + ".zip";
+		if (fs.exists(fname))
+		{
+			cmrc::file zipFile = fs.open(fname);
+			ZipArchive zip;
+			if (zip.Open(zipFile.cbegin(), zipFile.size()))
+			{
+				std::unique_ptr<ArchiveFile> flashFile;
+				flashFile.reset(zip.OpenFirstFile());
+				if (flashFile != nullptr)
+				{
+					std::unique_ptr<u8[]> buffer = std::make_unique<u8[]>(size);
+					size = flashFile->Read(buffer.get(), size);
+
+					return buffer;
+				}
+			}
+		}
+		else
+		{
+			cmrc::file flashFile = fs.open("flash/" + name);
+			size = flashFile.size();
+			std::unique_ptr<u8[]> buffer = std::make_unique<u8[]>(size);
+
+			return buffer;
+		}
+		DEBUG_LOG(FLASHROM, "Default flash not found");
+	} catch (const std::system_error& e) {
+		DEBUG_LOG(FLASHROM, "Default flash not found: %s", e.what());
+	}
+	size = 0;
+	return nullptr;
+}
+
+static void loadDefaultAWBiosFlash()
+{
+	std::string flashName = get_game_basename() + ".nvmem2";
+	size_t lastindex = get_last_slash_pos(flashName);
+	if (lastindex != std::string::npos)
+		flashName = flashName.substr(lastindex + 1);
+
+	size_t size = settings.platform.bios_size / 2;
+	std::unique_ptr<u8[]> buffer = loadFlashResource(flashName, size);
+	if (buffer)
+		sys_rom->Load(buffer.get(), size);
+}
+
 static bool loadFlash()
 {
 	bool rc = true;
 	if (settings.platform.isConsole())
 		rc = sys_nvmem->Load(getRomPrefix(), "%nvmem.bin", "nvram");
 	else if (!settings.naomi.slave)
+	{
 		rc = sys_nvmem->Load(hostfs::getArcadeFlashPath() + ".nvmem");
+		if (!rc)
+		{
+			std::string flashName = get_game_basename() + ".nvmem";
+			size_t lastindex = get_last_slash_pos(flashName);
+			if (lastindex != std::string::npos)
+				flashName = flashName.substr(lastindex + 1);
+
+			size_t size = settings.platform.flash_size;
+			std::unique_ptr<u8[]> buffer = loadFlashResource(flashName, size);
+			if (buffer)
+			{
+				sys_nvmem->Load(buffer.get(), size);
+				rc = true;
+			}
+		}
+	}
 	if (!rc)
 		INFO_LOG(FLASHROM, "flash/nvmem is missing, will create new file...");
 	fixUpDCFlash();
@@ -208,7 +279,10 @@ static bool loadFlash()
 
 	if (settings.platform.isAtomiswave())
 	{
-		sys_rom->Load(hostfs::getArcadeFlashPath() + ".nvmem2");
+		rc = sys_rom->Load(hostfs::getArcadeFlashPath() + ".nvmem2");
+		// TODO default AW .nvmem2
+		if (!rc)
+			loadDefaultAWBiosFlash();
 		if (config::GGPOEnable)
 			sys_nvmem->digest(settings.network.md5.nvmem2);
 	}
@@ -281,10 +355,14 @@ u8 *getBiosData()
 {
 	return sys_rom->data;
 }
+
 void reloadAWBios()
 {
-	if (settings.platform.isAtomiswave())
+	if (!settings.platform.isAtomiswave())
-		sys_rom->Reload();
+		return;
+	if (sys_rom->Reload())
+		return;
+	loadDefaultAWBiosFlash();
 }
 
 void init()

core/network/naomi_network.cpp

@@ -307,7 +307,6 @@ void SetNaomiNetworkConfig(int node)
 	}
 	else if (gameId == " BIOHAZARD  GUN SURVIVOR2")
 	{
-		// FIXME need default flash
 		write_naomi_flash(0x21c, node == 0 ? 0 : 1);	// CPU ID - 1
 		write_naomi_flash(0x22a, node == -1 ? 0 : 1);	// comm link on
 	}
@@ -317,7 +316,6 @@ void SetNaomiNetworkConfig(int node)
 	}
 	else if (gameId == "OUTTRIGGER     JAPAN")
 	{
-		// FIXME need default flash
 		write_naomi_flash(0x21a, node == -1 ? 0 : 1);	// network on
 		write_naomi_flash(0x21b, node);					// node id
 	}
@@ -349,7 +347,6 @@ void SetNaomiNetworkConfig(int node)
 	}
 	else if (gameId == "WORLD KICKS")
 	{
-		// FIXME need default flash
 		write_naomi_flash(0x224, node == -1 ? 0 : 1);	// network on
 		write_naomi_flash(0x220, node == 0 ? 0 : 1);	// node id
 	}