initial commit

1 files changed, 298 insertions, 0 deletions

diff --git a/src/Platform_N64.c b/src/Platform_N64.c
new file mode 100644
index 0000000..0d26b4f
--- /dev/null
+++ b/src/Platform_N64.c
@@ -0,0 +1,298 @@
+#include "Core.h"
+#if defined CC_BUILD_N64
+#include "_PlatformBase.h"
+#include "Stream.h"
+#include "ExtMath.h"
+#include "Funcs.h"
+#include "Window.h"
+#include "Utils.h"
+#include "Errors.h"
+#include "Options.h"
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <libdragon.h>
+#include <cop1.h>
+//#include <dragonfs.h>
+//#include <rtc.h>
+//#include <timer.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include "_PlatformConsole.h"
+
+const cc_result ReturnCode_FileShareViolation = 1000000000; // not used
+const cc_result ReturnCode_FileNotFound     = ENOENT;
+const cc_result ReturnCode_SocketInProgess  = EINPROGRESS;
+const cc_result ReturnCode_SocketWouldBlock = EWOULDBLOCK;
+const cc_result ReturnCode_DirectoryExists  = EEXIST;
+const char* Platform_AppNameSuffix = " N64";
+
+
+/*########################################################################################################################*
+*------------------------------------------------------Logging/Time-------------------------------------------------------*
+*#########################################################################################################################*/
+cc_uint64 Stopwatch_ElapsedMicroseconds(cc_uint64 beg, cc_uint64 end) {
+	if (end < beg) return 0;
+	
+	cc_uint64 delta = end - beg;
+	return TIMER_MICROS_LL(delta);
+}
+
+cc_uint64 Stopwatch_Measure(void) {
+	return timer_ticks();
+}
+
+void Platform_Log(const char* msg, int len) {
+	write(STDERR_FILENO, msg,  len);
+	write(STDERR_FILENO, "\n",   1);
+}
+
+TimeMS DateTime_CurrentUTC(void) {
+	return 0;
+}
+
+void DateTime_CurrentLocal(struct DateTime* t) {
+	rtc_time_t curTime = { 0 };
+	rtc_get(&curTime);
+
+	t->year   = curTime.year;
+	t->month  = curTime.month;
+	t->day    = curTime.day;
+	t->hour   = curTime.hour;
+	t->minute = curTime.min;
+	t->second = curTime.sec;
+}
+
+
+/*########################################################################################################################*
+*-----------------------------------------------------Directory/File------------------------------------------------------*
+*#########################################################################################################################*/
+static const cc_string root_path = String_FromConst("/");
+
+static void GetNativePath(char* str, const cc_string* path) {
+	// TODO temp hack
+	cc_string path_ = *path;
+	int idx = String_IndexOf(path, '/');
+	if (idx >= 0) path_ = String_UNSAFE_SubstringAt(&path_, idx + 1);
+	
+	Mem_Copy(str, root_path.buffer, root_path.length);
+	str += root_path.length;
+	String_EncodeUtf8(str, &path_);
+}
+
+cc_result Directory_Create(const cc_string* path) {
+	return ERR_NOT_SUPPORTED;
+}
+
+int File_Exists(const cc_string* path) {
+	return false;
+}
+
+cc_result Directory_Enum(const cc_string* dirPath, void* obj, Directory_EnumCallback callback) {
+	return ERR_NOT_SUPPORTED; // TODO add support
+}
+
+static cc_result File_Do(cc_file* file, const cc_string* path) {
+	char str[NATIVE_STR_LEN];
+	GetNativePath(str, path);
+	
+	//*file = -1;
+	//return ReturnCode_FileNotFound;
+	// TODO: Why does trying this code break everything
+	
+	int ret = dfs_open(str);
+	Platform_Log2("Opened %c = %i", str, &ret);
+	if (ret < 0) { *file = -1; return ret; }
+	
+	*file = ret;
+	return 0;
+}
+
+cc_result File_Open(cc_file* file, const cc_string* path) {
+	return File_Do(file, path);
+}
+cc_result File_Create(cc_file* file, const cc_string* path) {
+	*file = -1;
+	return ERR_NOT_SUPPORTED;
+	//return File_Do(file, path);
+}
+cc_result File_OpenOrCreate(cc_file* file, const cc_string* path) {
+	*file = -1;
+	return ERR_NOT_SUPPORTED;
+	//return File_Do(file, path);
+}
+
+cc_result File_Read(cc_file file, void* data, cc_uint32 count, cc_uint32* bytesRead) {
+	int ret = dfs_read(data, 1, count, file);
+	if (ret < 0) { *bytesRead = -1; return ret; }
+	
+	*bytesRead = ret;
+	return 0;
+}
+
+cc_result File_Write(cc_file file, const void* data, cc_uint32 count, cc_uint32* bytesWrote) {
+	return ERR_NOT_SUPPORTED;
+}
+
+cc_result File_Close(cc_file file) {
+	if (file < 0) return 0;
+	return dfs_close(file);
+}
+
+cc_result File_Seek(cc_file file, int offset, int seekType) {
+	static cc_uint8 modes[3] = { SEEK_SET, SEEK_CUR, SEEK_END };
+	return dfs_seek(file, offset, modes[seekType]);
+}
+
+cc_result File_Position(cc_file file, cc_uint32* pos) {
+	int ret = dfs_tell(file);
+	if (ret < 0) { *pos = -1; return ret; }
+	
+	*pos = ret;
+	return 0;
+}
+
+cc_result File_Length(cc_file file, cc_uint32* len) {
+	int ret = dfs_size(file);
+	if (ret < 0) { *len = -1; return ret; }
+	
+	*len = ret;
+	return 0;
+}
+
+
+/*########################################################################################################################*
+*--------------------------------------------------------Threading--------------------------------------------------------*
+*#########################################################################################################################*/
+// !!! NOTE: PSP uses cooperative multithreading (not preemptive multithreading) !!!
+void Thread_Sleep(cc_uint32 milliseconds) { 
+	wait_ms(milliseconds); 
+}
+
+void Thread_Run(void** handle, Thread_StartFunc func, int stackSize, const char* name) {
+	*handle = NULL;
+}
+
+void Thread_Detach(void* handle) {
+}
+
+void Thread_Join(void* handle) {
+}
+
+void* Mutex_Create(const char* name) {
+	return NULL;
+}
+
+void Mutex_Free(void* handle) {
+}
+
+void Mutex_Lock(void* handle) {
+}
+
+void Mutex_Unlock(void* handle) {
+}
+
+void* Waitable_Create(const char* name) {
+	return NULL;
+}
+
+void Waitable_Free(void* handle) {
+}
+
+void Waitable_Signal(void* handle) {
+}
+
+void Waitable_Wait(void* handle) {
+}
+
+void Waitable_WaitFor(void* handle, cc_uint32 milliseconds) {
+}
+
+
+/*########################################################################################################################*
+*---------------------------------------------------------Socket----------------------------------------------------------*
+*#########################################################################################################################*/
+cc_result Socket_ParseAddress(const cc_string* address, int port, cc_sockaddr* addrs, int* numValidAddrs) {
+	return ERR_NOT_SUPPORTED;
+}
+
+cc_result Socket_Connect(cc_socket* s, cc_sockaddr* addr, cc_bool nonblocking) {
+	return ERR_NOT_SUPPORTED;
+}
+
+cc_result Socket_Read(cc_socket s, cc_uint8* data, cc_uint32 count, cc_uint32* modified) {
+	return ERR_NOT_SUPPORTED;
+}
+
+cc_result Socket_Write(cc_socket s, const cc_uint8* data, cc_uint32 count, cc_uint32* modified) {
+	return ERR_NOT_SUPPORTED;
+}
+
+void Socket_Close(cc_socket s) { }
+
+cc_result Socket_CheckReadable(cc_socket s, cc_bool* readable) {
+	return ERR_NOT_SUPPORTED;
+}
+
+cc_result Socket_CheckWritable(cc_socket s, cc_bool* writable) {
+	return ERR_NOT_SUPPORTED;
+}
+
+
+/*########################################################################################################################*
+*--------------------------------------------------------Platform---------------------------------------------------------*
+*#########################################################################################################################*/
+// See src/n64sys.c
+static void DisableFpuExceptions(void) {
+    uint32_t fcr31 = C1_FCR31();
+    
+    fcr31 &= ~(C1_CAUSE_OVERFLOW | C1_CAUSE_UNDERFLOW | C1_CAUSE_NOT_IMPLEMENTED | C1_CAUSE_INEXACT_OP);
+    fcr31 |= C1_ENABLE_DIV_BY_0 | C1_ENABLE_INVALID_OP;
+    fcr31 |= C1_FCR31_FS;
+
+    C1_WRITE_FCR31(fcr31);	
+}
+
+void Platform_Init(void) {
+	debug_init_isviewer();
+	debug_init_usblog();
+	DisableFpuExceptions();
+	
+	Platform_ReadonlyFilesystem = true;
+	dfs_init(DFS_DEFAULT_LOCATION);
+	timer_init();
+	rtc_init();
+}
+void Platform_Free(void) { }
+
+cc_bool Platform_DescribeError(cc_result res, cc_string* dst) {
+	char chars[NATIVE_STR_LEN];
+	int len;
+
+	/* For unrecognised error codes, strerror_r might return messages */
+	/*  such as 'No error information', which is not very useful */
+	/* (could check errno here but quicker just to skip entirely) */
+	if (res >= 1000) return false;
+
+	len = strerror_r(res, chars, NATIVE_STR_LEN);
+	if (len == -1) return false;
+
+	len = String_CalcLen(chars, NATIVE_STR_LEN);
+	String_AppendUtf8(dst, chars, len);
+	return true;
+}
+
+cc_bool Process_OpenSupported = false;
+cc_result Process_StartOpen(const cc_string* args) {
+	return ERR_NOT_SUPPORTED;
+}
+
+
+/*########################################################################################################################*
+*-------------------------------------------------------Encryption--------------------------------------------------------*
+*#########################################################################################################################*/
+static cc_result GetMachineID(cc_uint32* key) {
+	return ERR_NOT_SUPPORTED;
+}
+#endif