// XA track playback example // base on `psyq/addons/scee/CD/XAPLAYER` // Refs : http://psx.arthus.net/code/XA/XATUT.pdf // http://psx.arthus.net/code/XA/xatut.zip // http://psx.arthus.net/code/XA/XA%20ADPCM%20documentation.txt // based on Lameguy64's tutorial : http://lameguy64.net/svn/pstutorials/chapter1/1-display.html #include #include #include #include #include // CD library #include // SPU library #include #define VMODE 0 // Video Mode : 0 : NTSC, 1: PAL #define SCREENXRES 320 // Screen width #define SCREENYRES 240 + (VMODE << 4) // Screen height : If VMODE is 0 = 240, if VMODE is 1 = 256 #define CENTERX SCREENXRES/2 // Center of screen on x #define CENTERY SCREENYRES/2 // Center of screen on y #define MARGINX 0 // margins for text display #define MARGINY 32 #define FONTSIZE 8 * 7 // Text Field Height DISPENV disp[2]; // Double buffered DISPENV and DRAWENV DRAWENV draw[2]; short db = 0; // index of which buffer is used, values 0, 1 // SPU attributes SpuCommonAttr spuSettings; #define CD_SECTOR_SIZE 2048 // XA // Sector offset for XA data 4: simple speed, 8: double speed #define XA_SECTOR_OFFSET 4 // Number of XA files #define XA_TRACKS 1 // Number of populated XA streams/channels in each XA file #define INDEXES_IN_XA 1 #define TOTAL_TRACKS (XA_TRACKS*INDEXES_IN_XA) typedef struct { int start; int end; } XA_TRACK; // Declare an array of XA_TRACK XA_TRACK XATrack[XA_TRACKS]; // Name of file to load static char * loadXA = "\\INTER4.XA;1"; CdlFILE XAPos = {0}; // Start and end position of XA data, in sectors static int StartPos, EndPos; // Current pos in file static int CurPos = -1; // Playback status : 0 not playing, 1 playing static int gPlaying = 0; // Current XA channel static char channel = 0; void init(void) { ResetGraph(0); // Initialize drawing engine with a complete reset (0) SetDefDispEnv(&disp[0], 0, 0 , SCREENXRES, SCREENYRES); // Set display area for both &disp[0] and &disp[1] SetDefDispEnv(&disp[1], 0, SCREENYRES, SCREENXRES, SCREENYRES); // &disp[0] is on top of &disp[1] SetDefDrawEnv(&draw[0], 0, SCREENYRES, SCREENXRES, SCREENYRES); // Set draw for both &draw[0] and &draw[1] SetDefDrawEnv(&draw[1], 0, 0 , SCREENXRES, SCREENYRES); // &draw[0] is below &draw[1] // Set video mode if (VMODE){ SetVideoMode(MODE_PAL);} SetDispMask(1); // Display on screen setRGB0(&draw[0], 50, 50, 50); // set color for first draw area setRGB0(&draw[1], 50, 50, 50); // set color for second draw area draw[0].isbg = 1; // set mask for draw areas. 1 means repainting the area with the RGB color each frame draw[1].isbg = 1; PutDispEnv(&disp[db]); // set the disp and draw environnments PutDrawEnv(&draw[db]); FntLoad(960, 0); // Load font to vram at 960,0(+128) FntOpen(MARGINX, SCREENYRES - MARGINY - FONTSIZE, SCREENXRES - MARGINX * 2, FONTSIZE, 0, 280 ); // FntOpen(x, y, width, height, black_bg, max. nbr. chars } void display(void) { DrawSync(0); // Wait for all drawing to terminate VSync(0); // Wait for the next vertical blank PutDispEnv(&disp[db]); // set alternate disp and draw environnments PutDrawEnv(&draw[db]); db = !db; // flip db value (0 or 1) } int main(void) { // Init display init(); // SPU setup // Init Spu SpuInit(); // Set master & CD volume to max spuSettings.mask = (SPU_COMMON_MVOLL | SPU_COMMON_MVOLR | SPU_COMMON_CDVOLL | SPU_COMMON_CDVOLR | SPU_COMMON_CDMIX); spuSettings.mvol.left = 0x6000; spuSettings.mvol.right = 0x6000; spuSettings.cd.volume.left = 0x6000; spuSettings.cd.volume.right = 0x6000; // Enable CD input ON spuSettings.cd.mix = SPU_ON; // Apply settings SpuSetCommonAttr(&spuSettings); // Set transfer mode SpuSetTransferMode(SPU_TRANSFER_BY_DMA); // Init CD system CdInit(); // Optional : Set CD Attenuation volume // // CdlATV cd_vol; // cd_vol.val0 = cd_vol.val1 = cd_vol.val2 = cd_vol.val3 = 0x40; // CdMix(&cd_vol); // // Load XA file from cd // Find XA file pos CdSearchFile( &XAPos, loadXA); XATrack[0].start = CdPosToInt(&XAPos.pos); XATrack[0].end = XATrack[0].start + (XAPos.size/CD_SECTOR_SIZE) - 1; StartPos = XATrack[0].start; EndPos = XATrack[0].end; // XA setup u_char param[4]; // ORing the parameters we need to set ; drive speed, ADPCM play, Subheader filter, sector size param[0] = CdlModeSpeed|CdlModeRT|CdlModeSF|CdlModeSize1; // Issue primitive command to CD-ROM system (Blocking-type) // Set the parameters above CdControlB(CdlSetmode, param, 0); // Pause at current pos CdControlF(CdlPause,0); // Set filter // This specifies the file and channel number to actually read data from. CdlFILTER filter; // Use file 1, channel 0 filter.file = 1; filter.chan = channel; // Set filter CdControlF(CdlSetfilter, (u_char *)&filter); // Position of file on CD CdlLOC loc; // Set CurPos to StartPos CurPos = StartPos; while (1) // infinite loop { // Begin XA file playback if (gPlaying == 0 && CurPos == StartPos){ // Convert sector number to CD position in min/second/frame and set CdlLOC accordingly. CdIntToPos(StartPos, &loc); // Send CDROM read command CdControlF(CdlReadS, (u_char *)&loc); // Set playing flag gPlaying = 1; } // When endPos is reached, set playing flag to 0 if ((CurPos += XA_SECTOR_OFFSET) >= EndPos){ gPlaying = 0; } // If XA file end is reached, stop playback if ( gPlaying == 0 && CurPos >= EndPos ){ // Stop XA playback // Stop CD playback CdControlF(CdlStop,0); // Optional // Reset parameters // param[0] = CdlModeSpeed; // Set CD mode // CdControlB(CdlSetmode, param, 0); // Switch to next channel and start play back channel = !channel; filter.chan = channel; // Set filter CdControlF(CdlSetfilter, (u_char *)&filter); CurPos = StartPos; } FntPrint("Hello XA ! %d\n", VSync(-1)); FntPrint("Start, End Pos: %d %d\n", StartPos, EndPos); FntPrint("Current Pos: %d\n", CurPos ); FntPrint("Playback status: %d\n", gPlaying ); FntFlush(-1); // Draw printe stream display(); // Execute display() } return 0; }