void doSelect(struct FileSystem *fs, s16 choice) {
const struct FileEntry *const file = dirList[choice];
const char *str = file->fileName;
u32 cluster = file->firstCluster;
u32 length = file->length;
const u32 clusterLen = fatGetClusterLength(fs);
const u16 clustersPerStar = (u16)(length / (32*clusterLen));
u16 x = 0, i;
volatile u8 *const ssf2Reg = (volatile u8 *)0xA130F3;
u8 page = 0x40;
u8 *const LWM = (u8*)0x480000;
u8 *const HWM = LWM + 512*1024;
u8 *ptr = LWM;
u8 isFirst;
// Work out what x offset to use for the ROM name
while ( *str ) {
str++;
x++;
}
x = (40-x) >> 1;
str = dirList[choice]->fileName;
// Construct loading screen
VDP_waitVSync();
VDP_clearPlan(VDP_PLAN_A, 1);
VDP_waitDMACompletion();
VDP_setTextPalette(PAL1);
VDP_drawText(str, x, 11);
VDP_setTextPalette(PAL2);
VDP_drawText("Loading...", 15, 24);
VDP_drawText("+--------------------------------+", 3, 25);
VDP_drawText("| |", 3, 26);
VDP_drawText("+--------------------------------+", 3, 27);
VDP_setTextPalette(PAL0);
*ssf2Reg = page;
isFirst = 1;
*((u16*)0x430000) = (clusterLen>>2)-1;
for ( x = 4; x < 32+4; x++ ) {
for ( i = 0; i < clustersPerStar; i++ ) {
if ( isFirst ) {
cluster = fatReadCluster(fs, cluster, (u8*)0x430002);
isFirst = 0;
} else {
cluster = fatReadCluster(fs, cluster, ptr);
}
ptr += clusterLen;
if ( ptr == HWM ) {
ptr = LWM;
page++;
*ssf2Reg = page;
}
}
VDP_drawText("*", x, 26);
}
*ssf2Reg = 0x40; // point back at bottom of RAM
__asm__("trap #0");
}
void text_draw ( u8 *str, u8 x, u8 y, u16 ms )
{
#define POSITION _base + _positions[chr] * _tiles + inc
u8 chr;
u16 k;
u16 j;
u16 i = 0;
u16 inc = 0;
u8 *aux = str;
while ( (chr = *aux++) )
{
inc = 0;
chr -= ' ';
if ( chr >= 96 ) chr = 0;
if ( ! _positions[chr] )
{
_positions[chr] = _counter++;
VDP_loadTileData ( _genres->sprites[chr], POSITION, _tiles, TRUE );
VDP_waitDMACompletion();
}
}
while ( (chr = *str++) )
{
inc = 0;
chr -= ' ';
if ( chr >= 96 ) chr = 0;
for ( j = 0; j < _height; j++ )
{
for ( k = 0; k < _width; k++ )
{
VDP_setTileMapXY ( BPLAN, TILE_ATTR_FULL ( _palette, TRUE, 0, 0, POSITION ), i*_width + x + j, y + k );
++inc;
}
}
waitMs ( ms );
++i;
}
}
static void displayFullScreenPicture(){
s16 i,j,k;
u16 tmp_tile_index;
SYS_disableInts();
VDP_clearPlan(APLAN, 0);
VDP_clearPlan(BPLAN, 0);
/* Set a larger tileplan to be able to scroll */
VDP_setPlanSize(64, 32);
/* Draw the background */
// VDP_drawImageEx(BPLAN, &pic00, TILE_ATTR_FULL(PAL0, TRUE, FALSE, FALSE, vramIndex), 0, 0, TRUE, TRUE);
// vramIndex += pic00.tileset->numTile;
VDP_setScrollingMode(HSCROLL_PLANE, VSCROLL_PLANE);
VDP_setVerticalScroll(PLAN_B, 0);
VDP_setVerticalScroll(PLAN_A, 0);
VDP_setHorizontalScroll(PLAN_B, 0);
VDP_setHorizontalScroll(PLAN_A, 0);
SYS_enableInts();
// vramIndex = 0;
VDP_waitDMACompletion();
while (1){
/* Pic 0 */
// tmp_tile_index = curTileInd;
SYS_disableInts();
VDP_drawImageEx(APLAN, &pic00, TILE_ATTR_FULL(PAL0, TRUE, FALSE, FALSE, vramIndex), 0, 0, TRUE, TRUE);
SYS_enableInts();
RSE_pause(RSE_FRAMES(1*60));
RSE_pause(RSE_FRAMES(2*60));
VDP_fadeOut(1, 63, 16, FALSE);
RSE_turn_screen_to_black();
VDP_waitDMACompletion();
for(i = 0; i < 224 >> 3; i++)
{
VDP_waitVSync();
RSE_clearTileRowB(i);
RSE_clearTileRowA(i);
}
/* Pic 1 */
// curTileInd = tmp_tile_index;
SYS_disableInts();
VDP_drawImageEx(APLAN, &pic01a, TILE_ATTR_FULL(PAL0, TRUE, FALSE, FALSE, vramIndex), 0, 12 >> 3, TRUE, TRUE);
VDP_waitDMACompletion();
VDP_drawImageEx(BPLAN, &pic01b, TILE_ATTR_FULL(PAL1, TRUE, FALSE, FALSE, vramIndex + pic01a.tileset->numTile), 0, 12 >> 3, TRUE, TRUE);
SYS_enableInts();
RSE_pause(RSE_FRAMES(3*60));
VDP_fadeOut(1, 63, 16, FALSE);
RSE_turn_screen_to_black();
VDP_waitDMACompletion();
for(i = 0; i < 224 >> 3; i++)
{
VDP_waitVSync();
RSE_clearTileRowB(i);
RSE_clearTileRowA(i);
}
/* Pic 2 */
// curTileInd = tmp_tile_index;
SYS_disableInts();
VDP_drawImageEx(APLAN, &pic02a, TILE_ATTR_FULL(PAL0, TRUE, FALSE, FALSE, vramIndex), (320 - 256) >> 4, 0, TRUE, TRUE);
VDP_waitDMACompletion();
VDP_drawImageEx(BPLAN, &pic02b, TILE_ATTR_FULL(PAL1, TRUE, FALSE, FALSE, vramIndex + pic02a.tileset->numTile), (320 - 256) >> 4, 0, TRUE, TRUE);
SYS_enableInts();
RSE_pause(RSE_FRAMES(3*60));
VDP_fadeOut(1, 63, 16, FALSE);
RSE_turn_screen_to_black();
VDP_waitDMACompletion();
for(i = 0; i < 224 >> 3; i++)
{
VDP_waitVSync();
RSE_clearTileRowB(i);
RSE_clearTileRowA(i);
}
/* Pic 9 */
// curTileInd = tmp_tile_index;
SYS_disableInts();
VDP_drawImageEx(APLAN, &pic09, TILE_ATTR_FULL(PAL0, TRUE, FALSE, FALSE, vramIndex), 0, 0, TRUE, TRUE);
SYS_enableInts();
RSE_pause(RSE_FRAMES(3*60));
VDP_fadeOut(1, 63, 16, FALSE);
RSE_turn_screen_to_black();
VDP_waitDMACompletion();
for(i = 0; i < 224 >> 3; i++)
{
VDP_waitVSync();
RSE_clearTileRowB(i);
RSE_clearTileRowA(i);
}
}
}
int main() {
u16 i, newJoy = 0, oldJoy = 0, autoRepeatDelay = 0, redraw = 1;
s16 choice = 0;
const char *str;
struct FileSystem fs;
u16 numFiles;
// Init the screen, display message
VDP_setScreenWidth320();
VDP_setHInterrupt(0);
VDP_setHilightShadow(0);
VDP_setTextPalette(PAL0);
VDP_drawText("MakeStuff USB MegaDrive Dev Kit v2", 3, 10);
VDP_drawText("Reading SD-card...", 11, 12);
// Initialise the SD card
sdInit();
// Get the geometry of the first SD-card partition
fatOpenFileSystem(&fs);
// Initialise workspace for the directory list
initFiles((u16*)0x440000);
// Get the list of game ROMs
fatListDirectory(&fs, fs.rootDirCluster, storeFile);
// Sort the list alphabetically
numFiles = dirPtr - dirList;
quickSort((CVPtr *)dirList, 0, numFiles, (CompareFunc)myFileComp);
// Display the list
for ( ; ; ) {
newJoy = JOY_readJoypad(0);
if ( newJoy & BUTTON_UP && choice > 0 ) {
if ( !(oldJoy & BUTTON_UP) ) {
choice--; redraw = 1;
autoRepeatDelay = 0;
} else {
if ( autoRepeatDelay == 10 ) {
choice--; redraw = 1;
} else {
autoRepeatDelay++;
}
}
}
if ( newJoy & BUTTON_DOWN && choice < numFiles-1 ) {
if ( !(oldJoy & BUTTON_DOWN) ) {
choice++; redraw = 1;
autoRepeatDelay = 0;
} else {
if ( autoRepeatDelay == 10 ) {
choice++; redraw = 1;
} else {
autoRepeatDelay++;
}
}
}
if ( newJoy & BUTTON_START ) {
doSelect(&fs, choice);
}
oldJoy = newJoy;
VDP_waitVSync();
if ( redraw ) {
VDP_clearPlan(VDP_PLAN_A, 1);
VDP_waitDMACompletion();
for ( i = 2; i < 26; i++ ) {
if ( i >= 11-choice && i < numFiles-choice+11 ) {
str = dirList[choice+i-11]->fileName;
if ( i == 11 ) {
VDP_setTextPalette(PAL1);
VDP_drawText(str, 2, i);
VDP_setTextPalette(PAL0);
} else {
VDP_drawText(str, 2, i);
}
}
}
}
redraw = 0;
}
}