ABelliqueux/nolibgs_hello_worlds
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Get rid of libds

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ABelliqueux 2021-11-13 20:09:31 +01:00
parent 3e2a21ff90
commit 87176920d7
1 changed files with 43 additions and 25 deletions
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68
hello_cdda/hello_cdda.c
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@ -2,11 +2,12 @@
// Schnappy 07-2021
#include <sys/types.h>
#include <stdio.h>
#include <stdint.h>
#include <libgte.h>
#include <libetc.h>
#include <libgpu.h>
// CD library
#include <libds.h>
#include <libcd.h>
// SPU library
#include <libspu.h>
@ -55,10 +56,15 @@ void display(void)
db = !db; // flip db value (0 or 1)
}
int main(void)
{
init(); // init() display
{
int count = 0;
int flip = 1;
CdlLOC loc[100];
int ntoc;
// Init display
init();
// Init extended CD system
DsInit();
CdInit();
// Init Spu
SpuInit();
// Set master & CD volume to max
@ -75,35 +81,47 @@ int main(void)
SpuSetCommonAttr(&spuSettings);
// Set transfer mode
SpuSetTransferMode(SPU_TRANSFER_BY_DMA);
// CD Playback setup
// Play second audio track
// Get CD TOC
while ((ntoc = CdGetToc(loc)) == 0) { /* Read TOC */
FntPrint("No TOC found: please use CD-DA disc...\n");
}
// Prevent out of bound pos
for (int i = 1; i < ntoc; i++) {
CdIntToPos(CdPosToInt(&loc[i]) - 74, &loc[i]);
}
// Those array will hold the return values of the CD commands
u_char param[4], result[8];
// Set CD parameters ; Report Mode ON, CD-DA ON. See LibeOver47.pdf, p.188
param[0] = CdlModeRept|CdlModeDA;
CdControlB (CdlSetmode, param, 0); /* set mode */
VSync (3); /* wait three vsync times */
// Play second track in toc array
CdControlB (CdlPlay, (u_char *)&loc[3], 0); /* play */
int count = 0;
int flip = 0;
while (1) // infinite loop
{
if ( count == 0){
DsPlay(2, tracks, 0);
}
{
count ++;
// Afer 5 seconds
if ( count == 300 ){
// Stop playback
DsPlay(0, tracks, 0);
// Get current track number ~ every second
// See LibeOver47.pdf, p.188
if (count%50 == 0){
CdReady(1, &result[0]);
// current track number can also be obtained with
// CdControlB (CdlGetlocP, 0, &result[0]);
}
// Wait one second
if ( count == 360 ){
// Flip value
flip = !flip;
// Switch track (can be 2 or 3)
tracks[0] = 2 + flip;
// Reset counter
count = 0;
// Switch track after ~ 20 seconds
if (count%(50*20) == 0){
// Flip can have a value of 1 or -1
flip *= -1;
uint8_t nextTrackIndex = result[1] + flip;
// Send CD command to switch track
CdControlB (CdlPlay, (u_char *)&loc[ nextTrackIndex ], 0);
}
FntPrint("Hello CDDA !\n"); // Send string to print stream
FntPrint("Playback status: %d", DsPlay(3, tracks, 0)); // Send string to print stream
FntPrint("Playback status: %d", result[1]); // Send string to print stream
FntFlush(-1); // Draw printe stream
display(); // Execute display()