// VAGDEMO2020 by Schnappy // December 2020 // Based on VAGDEMO_FIXED by Yagotzirck // Based on VAGDEMO by Shadow // based on psyq/addons/sound/TUTO3.C // // // Load a VAG file to SPU sound buffer and play it back. // // WAV creation: use ffmpeg to create a 16-bit ADPCM mono WAV file - change -ar to reduce filesize (and quality) // $ ffmpeg -i input.mp3 -acodec pcm_s16le -ac 1 -ar 44100 output.wav // // WAV to VAG convertion using WAV2VAG : https://github.com/ColdSauce/psxsdk/blob/master/tools/wav2vag.c // change -freq according to the -ar setting above // $ wav2vag input.wav output.vag -sraw16 -freq=44100 (-L) // // Alternatively, you can use PsyQ VAGEDIT.EXE to change the sampling frequency of an existing VAG file. // // Docs : see libformat47.pdf p.209 // libover47.pdf, p.271 // libref47.pdf, p.980 // URLS : http://psx.arthus.net/code/VAG/ #include #include #include #include #include // Sound system #include #include #define VMODE 0 // Video Mode : 0 : NTSC, 1: PAL #define SCREENXRES 320 #define SCREENYRES 240 #define CENTERX SCREENXRES/2 #define CENTERY SCREENYRES/2 #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 // Sound stuff #define MALLOC_MAX 3 // Max number of time we can call SpuMalloc //~ // convert Little endian to Big endian #define SWAP_ENDIAN32(x) (((x)>>24) | (((x)>>8) & 0xFF00) | (((x)<<8) & 0x00FF0000) | ((x)<<24)) typedef struct VAGheader{ // All the values in this header must be big endian char id[4]; // VAGp 4 bytes -> 1 char * 4 unsigned int version; // 4 bytes unsigned int reserved; // 4 bytes unsigned int dataSize; // (in bytes) 4 bytes unsigned int samplingFrequency;// 4 bytes char reserved2[12]; // 12 bytes -> 1 char * 12 char name[16]; // 16 bytes -> 1 char * 16 // Waveform data after that }VAGhdr; SpuCommonAttr commonAttributes; // structure for changing common voice attributes SpuVoiceAttr voiceAttributes ; // structure for changing individual voice attributes u_long vag_spu_address; // address allocated in memory for first sound file // DEBUG : these allow printing values for debugging u_long spu_start_address; u_long get_start_addr; u_long transSize; // Memory management table ; allow MALLOC_MAX calls to SpuMalloc() - ibref47.pdf p.1044 char spu_malloc_rec[SPU_MALLOC_RECSIZ * (2 + MALLOC_MAX+1)]; // VAG files // We're using GrumpyCoder's Nugget wrapper to compile the code with a modern GCC : https://github.com/grumpycoders/pcsx-redux/tree/main/src/mips/psyq // To include binary files in the exe, add your VAG files to the SRCS variable in Makefile // and in common.mk, add this rule to include *.vag files : // //~ %.o: %.vag //~ $(PREFIX)-objcopy -I binary --set-section-alignment .data=4 --rename-section .data=.rodata,alloc,load,readonly,data,contents -O elf32-tradlittlemips -B mips $< $@ // hello_poly.vag - 44100 Khz extern unsigned char _binary_VAG_hello_poly_vag_start[]; // filename must begin with _binary_ followed by the full path, with . and / replaced, and then suffixed with _ and end with _start[]; or end[]; extern unsigned char _binary_VAG_hello_poly_vag_end[]; // https://discord.com/channels/642647820683444236/663664210525290507/780866265077383189 void initGraph(void) { ResetGraph(0); SetDefDispEnv(&disp[0], 0, 0, SCREENXRES, SCREENYRES); SetDefDispEnv(&disp[1], 0, SCREENYRES, SCREENXRES, SCREENYRES); SetDefDrawEnv(&draw[0], 0, SCREENYRES, SCREENXRES, SCREENYRES); SetDefDrawEnv(&draw[1], 0, 0, SCREENXRES, SCREENYRES); if (VMODE) { SetVideoMode(MODE_PAL); disp[0].screen.y += 8; disp[1].screen.y += 8; } setRGB0(&draw[0], 50, 50, 50); setRGB0(&draw[1], 50, 50, 50); draw[0].isbg = 1; draw[1].isbg = 1; PutDispEnv(&disp[db]); PutDrawEnv(&draw[db]); FntLoad(960, 0); FntOpen(8, 60, 304, 200, 0, 500 ); } void display(void) { DrawSync(0); VSync(0); PutDispEnv(&disp[db]); PutDrawEnv(&draw[db]); SetDispMask(1); db = !db; } // Audio initialisation & functions void initSnd(void){ SpuInitMalloc(MALLOC_MAX, spu_malloc_rec); // Maximum number of blocks, mem. management table address. commonAttributes.mask = (SPU_COMMON_MVOLL | SPU_COMMON_MVOLR); // Mask which attributes to set commonAttributes.mvol.left = 0x3fff; // Master volume left commonAttributes.mvol.right = 0x3fff; // see libref47.pdf, p.1058 SpuSetCommonAttr(&commonAttributes); // set attributes SpuSetIRQ(SPU_OFF); } u_long sendVAGtoRAM(unsigned int VAG_data_size, unsigned char *VAG_data){ u_long size; SpuSetTransferMode(SpuTransByDMA); // DMA transfer; can do other processing during transfer size = SpuWrite (VAG_data + sizeof(VAGhdr), VAG_data_size); // transfer VAG_data_size bytes from VAG_data address to sound buffer SpuIsTransferCompleted (SPU_TRANSFER_WAIT); // Checks whether transfer is completed and waits for completion return size; } void setVoiceAttr(unsigned int pitch, long channel, unsigned long soundAddr ){ voiceAttributes.mask= //~ Attributes (bit string, 1 bit per attribute) ( SPU_VOICE_VOLL | SPU_VOICE_VOLR | SPU_VOICE_PITCH | SPU_VOICE_WDSA | SPU_VOICE_ADSR_AMODE | SPU_VOICE_ADSR_SMODE | SPU_VOICE_ADSR_RMODE | SPU_VOICE_ADSR_AR | SPU_VOICE_ADSR_DR | SPU_VOICE_ADSR_SR | SPU_VOICE_ADSR_RR | SPU_VOICE_ADSR_SL ); voiceAttributes.voice = channel; //~ Voice (low 24 bits are a bit string, 1 bit per voice ) voiceAttributes.volume.left = 0x1000; //~ Volume voiceAttributes.volume.right = 0x1000; //~ Volume voiceAttributes.pitch = pitch; //~ Interval (set pitch) voiceAttributes.addr = soundAddr; //~ Waveform data start address voiceAttributes.a_mode = SPU_VOICE_LINEARIncN; //~ Attack rate mode = Linear Increase - see libref47.pdf p.1091 voiceAttributes.s_mode = SPU_VOICE_LINEARIncN; //~ Sustain rate mode = Linear Increase voiceAttributes.r_mode = SPU_VOICE_LINEARDecN; //~ Release rate mode = Linear Decrease voiceAttributes.ar = 0x0; //~ Attack rate voiceAttributes.dr = 0x0; //~ Decay rate voiceAttributes.rr = 0x0; //~ Release rate voiceAttributes.sr = 0x0; //~ Sustain rate voiceAttributes.sl = 0xf; //~ Sustain level SpuSetVoiceAttr(&voiceAttributes); // set attributes } void playSFX(void){ SpuSetKey(SpuOn,SPU_0CH); // Set several channels by ORing each channel bit ; ex : SpuSetKey(SpuOn,SPU_0CH | SPU_3CH | SPU_8CH); channels 0, 3, 8 are on. } int main(void) { short counter = 0; const VAGhdr * VAGfileHeader = (VAGhdr *) _binary_VAG_hello_poly_vag_start; // get header of VAG file // From libover47.pdf : // The sampling frequency of the original audio file can be used to determine the pitch // at which to play the VAG. pitch = (sampling frequency << 12)/44100L // Ex: 44.1kHz=0x1000 22.05kHz=0x800 etc unsigned int pitch = (SWAP_ENDIAN32(VAGfileHeader->samplingFrequency) << 12) / 44100L; SpuInit(); // Initialize SPU. Called only once. initSnd(); //~ // First VAG vag_spu_address = SpuMalloc(SWAP_ENDIAN32(VAGfileHeader->dataSize)); // Allocate an area of dataSize bytes in the sound buffer. spu_start_address = SpuSetTransferStartAddr(vag_spu_address); // Sets a starting address in the sound buffer get_start_addr = SpuGetTransferStartAddr(); // SpuGetTransferStartAddr() returns current sound buffer transfer start address. transSize = sendVAGtoRAM(SWAP_ENDIAN32(VAGfileHeader->dataSize), _binary_VAG_hello_poly_vag_start); // set VAG to channel setVoiceAttr(pitch, SPU_0CH, vag_spu_address); initGraph(); while (1) { if(!counter){ playSFX(); counter = 180; } FntPrint("\nPitch : %08x-%dKhz", pitch, (SWAP_ENDIAN32(VAGfileHeader->samplingFrequency)) ); FntPrint("\nSet Start addr : %08x", vag_spu_address); FntPrint("\nReturn start addr : %08x", spu_start_address); FntPrint("\nGet Start addr : %08x", get_start_addr); FntPrint("\nSend size : %08x", SWAP_ENDIAN32(VAGfileHeader->dataSize)); FntPrint("\nReturn size : %08x\n", transSize); FntPrint("\nCounter : %d\n", counter); FntFlush(-1); counter --; display(); } return 0; }