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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001-2006 The ScummVM project
* Copyright (C) 2002 Ph0x - GP32 Backend
* Copyright (C) 2003/2004 DJWillis - GP32 Backend
* Copyright (C) 2005 Won Star - GP32 Backend
*
* 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.
*
* $URL$
* $Id$
*
*/
#include "stdafx.h"
#include "common/scummsys.h"
#include "common/system.h"
#include "backends/intern.h"
#include "base/engine.h"
#include "backends/gp32/gp32std.h"
#include "backends/gp32/gp32std_grap.h"
FILE *gp_stderr = NULL;
FILE *gp_stdout = NULL;
FILE *gp_stdin = NULL;
#define DEBUG_MAX 4
char debline[DEBUG_MAX][256];
static int debnext = 0;
void _dprintf(const char *s, ...) {
int deba, deb;
char buf[1024];
va_list va;
va_start(va, s);
vsprintf(buf, s, va);
va_end(va);
strcpy(debline[debnext], buf);
gp_fillRect(frameBuffer1, 0, 200, 320, 40, 0);
for (deb = debnext + 1, deba = 0; deb < DEBUG_MAX; deb++, deba++) {
gp_textOut(frameBuffer1, 0, 200 + 8 * deba, debline[deb], 0xFFFF);
}
for (deb = 0; deb <= debnext; deb++, deba++) {
gp_textOut(frameBuffer1, 0, 200 + 8 * deba, debline[deb], 0xFFFF);
}
debnext++;
if (debnext == DEBUG_MAX)
debnext = 0;
}
//////////////////
//File functions
// FOR LATER USE
/*
#define SM_PATH_SIZE 256
const char smRootPath[] = "gp:\\";
char smCurrentPath[SM_PATH_SIZE] = "gp:\\"; // must end with '\'
int smMakePath(const char *path, char *smPath) {
// copy root or current directory
{
const char *p;
if ((*path == '/') || (*path == '\\'))
{
path++;
p = smRootPath;
}
else
p = smCurrentPath;
while (*p) *smPath++ = *p++;
}
// add filenames/directories. remove "." & ".."
do
{
switch (*path)
{
case 0:
case '/':
case '\\':
if (*(smPath-1) == '\\')
{
// already ends with '\'
}
else if ((*(smPath-1) == '.') && (*(smPath-2) == '\\'))
{
smPath--; // remove '.' and end with '\'
}
else if ((*(smPath-1) == '.') && (*(smPath-2) == '.') && (*(smPath-3) == '\\'))
{
smPath -= 3; // remove "\.."
if (*(smPath-1) == ':') *smPath++ = '\\'; // "dev0:" -> "dev0:\"
else while (*(smPath-1) != '\\') smPath--; // remove one directory and end with '\'
}
else
{
*smPath++ = '\\'; // just add '\'
}
break;
default:
*smPath++ = *path;
break;
}
}
while (*path++);
*smPath = '\\';
// *--smPath = 0; // remove last '\' and null-terminate
*smPath = 0; // remove last '\' and null-terminate
return 0;
}
*/
GPFILE *gp_fopen(const char *fileName, const char *openMode) {
//FIXME: allocation, mode, malloc -> new
uint32 mode;
GPFILE *file;
ERR_CODE err;
char s[256];
if (!strchr(fileName, '.')) {
sprintf(s, "%s.", fileName);
fileName = s;
}
file = (GPFILE *)malloc(sizeof(GPFILE));
// NP("%s(\"%s\", \"%s\")", __FUNCTION__, fileName, openMode);
// FIXME add binary/text support
if (tolower(openMode[0]) == 'r') {
mode = OPEN_R;
GpFileGetSize(fileName, &file->size);
err = GpFileOpen(fileName, mode, &file->handle);
} else if (tolower(openMode[0]) == 'w') {
//printf("open if as W");
file->size = 0; // FIXME? new file has no size?
file->cachePos = 0;
mode = OPEN_W;
err = GpFileCreate(fileName, ALWAYS_CREATE, &file->handle);
} else if (tolower(openMode[0]) == 'a') {
warning("We do not support 'a' file open mode.");
free(file);
return NULL;
} else {
error("wrong file mode");
}
if (!file) {
error("%s: cannot create FILE structure", __FUNCTION__);
}
if (err) {
// BP("%s: IO error %d", __FUNCTION__, err);
free(file);
return NULL;
}
return file;
}
int gp_fclose(GPFILE *stream) {
if (!stream) {
//warning("closing null file");
return 1;
}
/* if (*(uint32 *)((char *)stream - sizeof(uint32)) == 0x4321) {
debug(0, "Double closing", __FUNCTION__);
return 1;
}
*/
if (stream->cachePos) {
GpFileWrite(stream->handle, (char *)stream->cacheData, stream->cachePos); // flush cache
stream->cachePos = 0;
}
ERR_CODE err = GpFileClose(stream->handle);
free(stream);
return err;
}
int gp_fseek(GPFILE *stream, long offset, int whence) {
ulong dummy;
switch (whence) {
case SEEK_SET:
whence = FROM_BEGIN;
break;
case SEEK_CUR:
whence = FROM_CURRENT;
break;
case SEEK_END:
whence = FROM_END;
break;
}
return GpFileSeek(stream->handle, whence, offset, (long *)&dummy);
}
//TODO: read cache
size_t gp_fread(void *ptr, size_t size, size_t n, GPFILE *stream) {
ulong readcount = 0;
ERR_CODE err = GpFileRead(stream->handle, ptr, size * n, &readcount); //fixme? size*n
return readcount / size; //FIXME?
}
size_t gp_fwrite(const void *ptr, size_t size, size_t n, GPFILE *stream) {
int len = size * n;
if (!stream) {
//warning("writing to null file");
return 0;
}
if (stream->cachePos + len < FCACHE_SIZE) {
memcpy(stream->cacheData + stream->cachePos, ptr, len);
stream->cachePos += len;
} else {
if (stream->cachePos) {
GpFileWrite(stream->handle, stream->cacheData, stream->cachePos); // flush cache
stream->cachePos = 0;
}
ERR_CODE err = GpFileWrite(stream->handle, ptr, len);
if (!err)
return n;
else
return -err;
}
return 0;
}
//FIXME? use standard func
long gp_ftell(GPFILE *stream) {
ulong pos = 0;
ERR_CODE err = GpFileSeek(stream->handle, FROM_CURRENT, 0, (long*)&pos);
return pos;
}
void gp_clearerr(GPFILE *stream)
{
}
//FIXME!
int gp_feof(GPFILE *stream) {
return gp_ftell(stream) >= stream->size;
}
char gp_fgetc(GPFILE *stream) {
char c[1];
gp_fread(&c[0], 1, 1, stream);
return c[0];
}
char *gp_fgets(char *s, int n, GPFILE *stream) {
int i = 0;
while (!gp_feof(stream) && i < n) {
gp_fread(&s[i], 1, 1, stream);
if (s[i] == '\n') {
s[i + 1] = 0;
return s;
}
i++;
}
if (gp_feof(stream))
return NULL;
else
return s;
}
int gp_fprintf(GPFILE *stream, const char *fmt, ...) {
char s[256];
va_list marker;
va_start(marker, fmt);
vsnprintf(s, 256, fmt, marker);
va_end(marker);
return gp_fwrite(s, 1, strlen(s), stream);
}
int gp_fflush(GPFILE *stream) {
return 0;
}
int gp_ferror(GPFILE *stream) {
return 0;
}
/////////////////////
//Memory management
#undef memcpy
#undef memset
void *gp_memcpy(void *dst, const void *src, size_t count) {
return memcpy(dst, src, count);
}
void *gp_memset(void *dst, int val, size_t count) {
return memset(dst, val, count);
}
void *gp_malloc(size_t size) {
uint32 np;
uint32 *up;
np = (uint32) gm_malloc(size + sizeof(uint32));
if (np) {
up = (uint32 *) np;
*up = 0x1234;
return (void *)(np + sizeof(uint32));
}
return NULL;
}
void *gp_calloc(size_t nitems, size_t size) {
void *p = gp_malloc(nitems * size); //gpcalloc doesnt clear?
gp_memset(p, 0, nitems * size);
// if (*(uint8 *)p != 0)
// warning("%s: calloc doesn't clear", __FUNCTION__); //fixme: was error
return p;
}
void gp_free(void *block) {
uint32 np;
uint32 *up;
if (!block) {
return;
}
np = ((uint32) block) - sizeof(uint32);
up = (uint32 *) np;
if (*up == 0x4321) {
warning("%s: double deallocation", __FUNCTION__);
return;
}
if (*up != 0x1234) {
warning("%s: corrupt block", __FUNCTION__);
return;
}
*up = 0x4321;
gm_free(up);
}
//////////////////////////////////////////////////
// GP32 stuff
//////////////////////////////////////////////////
void *operator new(size_t size) {
// printf("BP:operator new(%d)", size);
return memset(malloc(size), 0xE7, size);
}
void operator delete(void *ptr) {
// printf("operator delete(%x)", ptr);
free(ptr);
}
////////////////////
//String functions
char *gp_strcpy(char *dst, const char *src) {
char *pDst = dst;
while (*pDst++ = *src++)
;
return dst;
}
char *gp_strncpy(char *dst, const char *src, size_t count) {
char *start = dst;
while (count && (*dst++ = *src++))
count--;
if (count)
while (--count)
*dst++ = '\0';
return start;
}
char *gp_strcat(char *dst, const char *src) {
char *pDst = dst;
while (*pDst)
pDst++;
while (*pDst++ = *src++)
;
return dst;
}
char *gp_strdup(const char *str) {
char *memory;
if (!str)
return NULL;
if (memory = (char *)malloc(strlen(str) + 1))
return gp_strcpy(memory, str);
return NULL;
}
int gp_strcasecmp(const char *dst, const char *src) {
int f, l;
do {
f = tolower((unsigned char)(*(dst++)));
l = tolower((unsigned char)(*(src++)));
} while (f && (f == l));
return f - l;
}
int gp_strncasecmp(const char *dst, const char *src, size_t count) {
int f,l;
if (count) {
do {
f = tolower((unsigned char)(*(dst++)));
l = tolower((unsigned char)(*(src++)));
} while (--count && f && (f == l));
return f - l;
}
return 0;
}
//FIXME: Handle LONG string
void gp_sprintf(char *str, const char *fmt, ...) {
char s[512];
va_list marker;
va_start(marker, fmt);
vsnprintf(s, 512, fmt, marker);
va_end(marker);
gp_strcpy(str, s);
}
int gp_printf(const char *fmt, ...) {
char s[256];
va_list marker;
va_start(marker, fmt);
vsnprintf(s, 256, fmt, marker);
va_end(marker);
_dprintf("%s", s);
//gp_delay(100);
return 0;
}
void gp_delay(uint32 msecs) {
int startTime = GpTickCountGet();
while (GpTickCountGet() < startTime + msecs);
}
void gp_clockSpeedChange(int freq, int magic, int div) {
#define rTCFG0 (*(volatile unsigned *)0x15100000)
#define rTCFG1 (*(volatile unsigned *)0x15100004)
#define rTCNTB4 (*(volatile unsigned *)0x1510003c)
unsigned int pclk;
unsigned int prescaler0;
// Change CPU Speed
GpClockSpeedChange(freq, magic, div);
pclk = GpPClkGet();
// Repair SDK timer - it forgets to set prescaler
prescaler0 = (pclk / (8000 * 40)) - 1;
rTCFG0 = (rTCFG0 & 0xFFFFFF00) | prescaler0;
rTCFG1 = 0x30033;
// Repair GpTickCountGet
rTCNTB4 = pclk / 1600;
}
void gp_setCpuSpeed(int freq) {
// Default value for 40 mhz
static int CLKDIV = 0x48013;
static int MCLK = 40000000;
static int CLKMODE = 0;
static int HCLK = 40000000;
static int PCLK = 40000000;
switch (freq) {
// overclocked
case 168: { CLKDIV = 0x14000; MCLK = 168000000; CLKMODE = 3; break; }
case 172: { CLKDIV = 0x23010; MCLK = 172000000; CLKMODE = 3; break; }
case 176: { CLKDIV = 0x24010; MCLK = 176000000; CLKMODE = 3; break; }
case 180: { CLKDIV = 0x16000; MCLK = 180000000; CLKMODE = 3; break; }
case 184: { CLKDIV = 0x26010; MCLK = 184000000; CLKMODE = 3; break; }
case 188: { CLKDIV = 0x27010; MCLK = 188000000; CLKMODE = 3; break; }
case 192: { CLKDIV = 0x18000; MCLK = 192000000; CLKMODE = 3; break; }
case 196: { CLKDIV = 0x29010; MCLK = 196000000; CLKMODE = 3; break; }
case 200: { CLKDIV = 0x2A010; MCLK = 200000000; CLKMODE = 3; break; }
case 204: { CLKDIV = 0x2b010; MCLK = 204000000; CLKMODE = 3; break; }
case 208: { CLKDIV = 0x2c010; MCLK = 208000000; CLKMODE = 3; break; }
case 212: { CLKDIV = 0x2d010; MCLK = 212000000; CLKMODE = 3; break; }
case 216: { CLKDIV = 0x2e010; MCLK = 216000000; CLKMODE = 3; break; }
case 220: { CLKDIV = 0x2f010; MCLK = 220000000; CLKMODE = 3; break; }
case 224: { CLKDIV = 0x30010; MCLK = 224000000; CLKMODE = 3; break; }
case 228: { CLKDIV = 0x1e000; MCLK = 228000000; CLKMODE = 3; break; }
case 232: { CLKDIV = 0x32010; MCLK = 232000000; CLKMODE = 3; break; }
case 236: { CLKDIV = 0x33010; MCLK = 236000000; CLKMODE = 3; break; }
case 240: { CLKDIV = 0x20000; MCLK = 240000000; CLKMODE = 3; break; }
case 244: { CLKDIV = 0x35010; MCLK = 244000000; CLKMODE = 3; break; }
case 248: { CLKDIV = 0x36010; MCLK = 248000000; CLKMODE = 3; break; }
case 252: { CLKDIV = 0x22000; MCLK = 252000000; CLKMODE = 3; break; }
case 256: { CLKDIV = 0x38010; MCLK = 256000000; CLKMODE = 3; break; }
// normal
// case 166: { CLKDIV = 0x4B011; MCLK = 166000000; CLKMODE = 3; break; }
case 166: { CLKDIV = 0x2f001; MCLK = 165000000; CLKMODE = 3; break; }
case 164: { CLKDIV = 0x4a011; MCLK = 164000000; CLKMODE = 3; break; }
case 160: { CLKDIV = 0x48011; MCLK = 160000000; CLKMODE = 3; break; }
case 156: { CLKDIV = 0x2c001; MCLK = 156000000; CLKMODE = 3; break; }
case 144: { CLKDIV = 0x28001; MCLK = 144000000; CLKMODE = 3; break; }
case 133: { CLKDIV = 0x51021; MCLK = 133500000; CLKMODE = 2; break; }
case 132: { CLKDIV = 0x3a011; MCLK = 132000000; CLKMODE = 3; break; }
case 120: { CLKDIV = 0x24001; MCLK = 120000000; CLKMODE = 2; break; }
case 100: { CLKDIV = 0x2b011; MCLK = 102000000; CLKMODE = 2; break; }
case 66: { CLKDIV = 0x25002; MCLK = 67500000; CLKMODE = 2; break; }
case 50: { CLKDIV = 0x2a012; MCLK = 50000000; CLKMODE = 0; break; }
// case 40: { CLKDIV = 0x48013; MCLK = 40000000; CLKMODE = 0; break; }
case 40: { CLKDIV = 0x48013; MCLK = 40000000; CLKMODE = 1; break; }
// case 33: { CLKDIV = 0x25003; MCLK = 33750000; CLKMODE = 0; break; }
case 33: { CLKDIV = 0x25003; MCLK = 33750000; CLKMODE = 2; break; }
case 22: { CLKDIV = 0x33023; MCLK = 22125000; CLKMODE = 0; break; }
default:
error("Invalid CPU frequency!");
}
if (CLKMODE == 0) { HCLK = MCLK; PCLK = MCLK; }
if (CLKMODE == 1) { HCLK = MCLK; PCLK = MCLK / 2; }
if (CLKMODE == 2) { HCLK = MCLK / 2; PCLK = MCLK / 2; }
if (CLKMODE == 3) { HCLK = MCLK / 2; PCLK = MCLK / 4; }
gp_clockSpeedChange(MCLK, CLKDIV, CLKMODE);
}
void gp_Reset() {
gp_setCpuSpeed(66);
asm volatile("swi #4\n");
}
void gp_exit(int code) {
if (!code) {
printf(" ----------------------------------------");
printf(" Your GP32 is now restarting... ");
printf(" ----------------------------------------");
printf("");
gp_delay(3000);
GpAppExit();
} else {
printf("Exit Code %d", code);
while (1);
}
}
// Debug functions
void GPDEBUG(const char *fmt, ...) {
char s[256];
va_list marker;
va_start(marker, fmt);
vsnprintf(s, 256, fmt, marker);
va_end(marker);
_dprintf("%s", s);
}
void NP(const char *fmt, ...) {
return;
char s[256];
va_list marker;
va_start(marker, fmt);
vsnprintf(s, 256, fmt, marker);
va_end(marker);
_dprintf("NP:%s", s);
gp_delay(50);
}
void LP(const char *fmt, ...) {
return;
char s[256];
va_list marker;
va_start(marker, fmt);
vsnprintf(s, 256, fmt, marker);
va_end(marker);
_dprintf("LP:%s", s);
gp_delay(300);
}
void SP(const char *fmt, ...) {
return;
char s[256];
va_list marker;
va_start(marker, fmt);
vsnprintf(s, 256, fmt, marker);
va_end(marker);
_dprintf("SP:%s", s);
gp_delay(50);
}
void BP(const char *fmt, ...) {
return;
char s[256];
va_list marker;
va_start(marker, fmt);
vsnprintf(s, 256, fmt, marker);
va_end(marker);
_dprintf("BP:%s", s);
gp_delay(2000);
}
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