111 lines
4.2 KiB
C
111 lines
4.2 KiB
C
// CDDA track playing example
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// based on Lameguy64's tutorial : http://lameguy64.net/svn/pstutorials/chapter1/1-display.html
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#include <sys/types.h>
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#include <stdio.h>
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#include <libgte.h>
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#include <libetc.h>
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#include <libgpu.h>
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// CD library
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#include <libds.h>
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// SPU library
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#include <libspu.h>
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#define VMODE 0 // Video Mode : 0 : NTSC, 1: PAL
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#define SCREENXRES 320 // Screen width
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#define SCREENYRES 240 + (VMODE << 4) // Screen height : If VMODE is 0 = 240, if VMODE is 1 = 256
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#define CENTERX SCREENXRES/2 // Center of screen on x
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#define CENTERY SCREENYRES/2 // Center of screen on y
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#define MARGINX 0 // margins for text display
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#define MARGINY 32
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#define FONTSIZE 8 * 7 // Text Field Height
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DISPENV disp[2]; // Double buffered DISPENV and DRAWENV
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DRAWENV draw[2];
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short db = 0; // index of which buffer is used, values 0, 1
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// SPU attributes
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SpuCommonAttr spuSettings;
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// CD tracks
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int playing = -1;
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int tracks[] = {2, 0}; // Track to play , 1 is data, 2 is beach.wav, 3 is funk.wav. See isoconfig.xml
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void init(void)
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{
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ResetGraph(0); // Initialize drawing engine with a complete reset (0)
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SetDefDispEnv(&disp[0], 0, 0 , SCREENXRES, SCREENYRES); // Set display area for both &disp[0] and &disp[1]
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SetDefDispEnv(&disp[1], 0, SCREENYRES, SCREENXRES, SCREENYRES); // &disp[0] is on top of &disp[1]
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SetDefDrawEnv(&draw[0], 0, SCREENYRES, SCREENXRES, SCREENYRES); // Set draw for both &draw[0] and &draw[1]
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SetDefDrawEnv(&draw[1], 0, 0 , SCREENXRES, SCREENYRES); // &draw[0] is below &draw[1]
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// Set video mode
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if (VMODE){ SetVideoMode(MODE_PAL);}
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SetDispMask(1); // Display on screen
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setRGB0(&draw[0], 50, 50, 50); // set color for first draw area
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setRGB0(&draw[1], 50, 50, 50); // set color for second draw area
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draw[0].isbg = 1; // set mask for draw areas. 1 means repainting the area with the RGB color each frame
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draw[1].isbg = 1;
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PutDispEnv(&disp[db]); // set the disp and draw environnments
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PutDrawEnv(&draw[db]);
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FntLoad(960, 0); // Load font to vram at 960,0(+128)
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FntOpen(MARGINX, SCREENYRES - MARGINY - FONTSIZE, SCREENXRES - MARGINX * 2, FONTSIZE, 0, 280 ); // FntOpen(x, y, width, height, black_bg, max. nbr. chars
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}
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void display(void)
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{
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DrawSync(0); // Wait for all drawing to terminate
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VSync(0); // Wait for the next vertical blank
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PutDispEnv(&disp[db]); // set alternate disp and draw environnments
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PutDrawEnv(&draw[db]);
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db = !db; // flip db value (0 or 1)
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}
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int main(void)
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{
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init(); // init() display
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// Init extended CD system
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DsInit();
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// Init Spu
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SpuInit();
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// Set master & CD volume to max
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spuSettings.mask = (SPU_COMMON_MVOLL | SPU_COMMON_MVOLR | SPU_COMMON_CDVOLL | SPU_COMMON_CDVOLR | SPU_COMMON_CDMIX);
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spuSettings.mvol.left = 0x7FFF;
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spuSettings.mvol.right = 0x7FFF;
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spuSettings.cd.volume.left = 0x7FFF;
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spuSettings.cd.volume.right = 0x7FFF;
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// Enable CD input ON
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spuSettings.cd.mix = SPU_ON;
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// Apply settings
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SpuSetCommonAttr(&spuSettings);
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// Set transfer mode
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SpuSetTransferMode(SPU_TRANSFER_BY_DMA);
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int count = 0;
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int flip = 0;
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while (1) // infinite loop
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{
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if ( count == 0){
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DsPlay(2, tracks, 0);
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}
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count ++;
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// Afer 5 seconds
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if ( count == 300 ){
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// Stop playback
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DsPlay(0, tracks, 0);
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}
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// Wait one second
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if ( count == 360 ){
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// Flip value
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flip = !flip;
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// Switch track (can be 2 or 3)
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tracks[0] = 2 + flip;
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// Reset counter
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count = 0;
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}
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FntPrint("Hello CDDA !\n"); // Send string to print stream
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FntPrint("Playback status: %d", DsPlay(3, tracks, 0)); // Send string to print stream
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FntFlush(-1); // Draw printe stream
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display(); // Execute display()
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}
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return 0;
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}
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