260 lines
9.0 KiB
C
260 lines
9.0 KiB
C
// The nolibgs 2021 demo disc !
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdint.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 <libcd.h>
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// CODEC library
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#include <libpress.h>
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// str playback
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#include "src/str.h"
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#include "src/mod.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 // 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 FONTX 960
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#define FONTY 0
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#define OTLEN 8
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DISPENV disp[2]; // Double buffered DISPENV and DRAWENV
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DRAWENV draw[2];
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u_long ot[2][OTLEN]; // double ordering table of length 8 * 32 = 256 bits / 32 bytes
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char primbuff[2][32768]; // double primitive buffer of length 32768 * 8 = 262.144 bits / 32,768 Kbytes
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char *nextpri = primbuff[0]; // pointer to the next primitive in primbuff. Initially, points to the first bit of primbuff[0]
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short db = 1; // index of which buffer is used, values 0, 1
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STR menu[4] = {
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{ "\\MENU.STR;1", 256, 240, 30, 0, 0 },
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{ "\\MENU.STR;1", 256, 240, 30, 1, 0 },
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{ "\\MENU1.STR;1", 256, 240, 30, 0, 0 },
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{ "\\MENU1.STR;1", 256, 240, 30, 1, 0 },
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};
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STR * curStr;
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StHEADER * sectorHeader;
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uint8_t drawMenu = 0;
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u_long * nextFrame = 0;
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// Ring buffer frame address
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u_long * frameAddr = 0;
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void init(void);
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void FntColor(CVECTOR fgcol, CVECTOR bgcol );
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void display(void);
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void drawBG(void);
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void checkPad(void);
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typedef struct OVERLAY {
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char filename[0x7c];
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int (*main)();
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char commandline[0x180];
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char title[0xc];
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} OVERLAY;
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OVERLAY menu_items[1] = {
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{"\\HELLO.OVL;1", 0, "", "0123456789AB"}
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};
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CVECTOR fntColor = { 115, 215, 45 };
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CVECTOR fntColorBG = { 0, 0, 0 };
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void FntColor(CVECTOR fgcol, CVECTOR bgcol )
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{
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// The debug font clut is at tx, ty + 128
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// tx = bg color
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// tx + 1 = fg color
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// We can override the color by drawing a rect at these coordinates
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//
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RECT fg = { FONTX+1, FONTY + 128, 1, 1 };
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RECT bg = { FONTX, FONTY + 128, 1, 1 };
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ClearImage(&fg, fgcol.r, fgcol.g, fgcol.b);
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ClearImage(&bg, bgcol.r, bgcol.g, bgcol.b);
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}
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void init(void)
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{
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ResetCallback();
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ResetGraph(0); // Initialize drawing engine with a complete reset (0)
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InitGeom();
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SetGeomOffset(CENTERX,CENTERY);
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SetGeomScreen(CENTERX);
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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
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SetVideoMode(MODE_PAL);
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disp[0].disp.y = 8;
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disp[1].disp.y = 8;
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#endif
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SetDispMask(0); // Display on screen
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setRGB0(&draw[0], 0, 0, 0); // set color for first draw area
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setRGB0(&draw[1], 0, 0, 0); // 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(FONTX, FONTY); // Load font to vram at 960,0(+128)
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FntOpen(106, 166, 48, 20, 0, 12 ); // FntOpen(x, y, width, height, black_bg, max. nbr. chars
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FntColor(fntColor, fntColorBG);
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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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//~ checkMusic();
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PutDispEnv(&disp[db]); // set alternate disp and draw environnments
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PutDrawEnv(&draw[db]);
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DrawOTag(&ot[db][OTLEN - 1]);
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db = !db;
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nextpri = primbuff[db]; // flip db value (0 or 1)
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}
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void drawBG(void)
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{
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POLY_FT4 *poly = {0}; // pointer to a POLY_G4
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SVECTOR RotVector = {0, 0, 0}; // Initialize rotation vector {x, y, z}
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VECTOR MovVector = {0, 0, CENTERX/2, 0}; // Initialize translation vector {x, y, z, pad}
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SVECTOR VertPos[4] = { // Set initial vertices position relative to 0,0 - see here : https://psx.arthus.net/docs/poly_f4.jpg
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{-CENTERX/2, -CENTERY/2, 1 }, // Vert 1
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{-CENTERX/2, CENTERY/2, 1 }, // Vert 2
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{ CENTERX/2, -CENTERY/2, 1 }, // Vert 3
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{ CENTERX/2, CENTERY/2, 1 } // Vert 4
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};
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MATRIX PolyMatrix = {0};
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long polydepth;
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long polyflag;
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ClearOTagR(ot[db], OTLEN);
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poly = (POLY_FT4 *)nextpri; // Set poly to point to the address of the next primitiv in the buffer
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// Set transform matrices for this polygon
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RotMatrix(&RotVector, &PolyMatrix); // Apply rotation matrix
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TransMatrix(&PolyMatrix, &MovVector); // Apply translation matrix
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SetRotMatrix(&PolyMatrix); // Set default rotation matrix
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SetTransMatrix(&PolyMatrix); // Set default transformation matrix
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setPolyFT4(poly); // Initialize poly as a POLY_F4
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poly->tpage = getTPage(2,0,STR_POS_X, STR_POS_Y);
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setRGB0(poly, 128, 128, 128); // Set poly color (neutra here)
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RotTransPers4(
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&VertPos[0], &VertPos[1], &VertPos[2], &VertPos[3],
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(long*)&poly->x0, (long*)&poly->x1, (long*)&poly->x2, (long*)&poly->x3,
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&polydepth,
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&polyflag
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); // Perform coordinate and perspective transformation for 4 vertices
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setUV4(poly, 0, 0,
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0, 240,
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255, 0,
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255, 240); // Set UV coordinates in order Top Left, Bottom Left, Top Right, Bottom Right
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addPrim(ot[db], poly); // add poly to the Ordering table
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nextpri += sizeof(POLY_FT4); // increment nextpri address with size of a POLY_F4 struct
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}
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void checkPad(void)
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{
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u_short pad = 0;
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static u_short oldPad;
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pad = PadRead(0);
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if ( pad & PADLleft && !(oldPad & PADLleft) )
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{
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// Channel 1 is transition anim, only take input when !transition
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if ( curStr == &menu[IDLE] )
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{
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ramsyscall_printf("Left\n");
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// Switch sound
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MOD_PlayNote(23, 12, 15, 63);
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switchStr(&curStr, LEFT);
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}
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oldPad = pad;
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}
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if ( !(pad & PADLleft) && oldPad & PADLleft )
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{
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oldPad = pad;
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}
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// Right
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if ( pad & PADLright && !(oldPad & PADLright) )
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{
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// Channel 1 is transition anim, only take input when !transition
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if( curStr == &menu[IDLE] )
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{
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ramsyscall_printf("Right\n");
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// Switch sound
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MOD_PlayNote(23, 12, 15, 63);
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switchStr(&curStr, RIGHT);
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}
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oldPad = pad;
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}
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if ( !(pad & PADLright) && oldPad & PADLright )
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{
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oldPad = pad;
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}
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// Cross button
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if ( pad & PADRdown && !(oldPad & PADRdown) )
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{
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// Select sound
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MOD_PlayNote(22, 7, 15, 63);
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oldPad = pad;
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}
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if ( !(pad & PADRdown) && oldPad & PADRdown )
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{
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oldPad = pad;
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}
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}
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int main() {
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curStr = &(menu[0]);
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// Set pointers to the relevant buffer addresses
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u_long * curVLCptr = &VlcBuff[0];
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u_short * curIMGptr = &ImgBuff[0];
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init();
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PadInit(0);
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VSyncCallback(checkPad);
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// Init CDrom system
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CdInit();
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// Init MDEC and load STR
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initSTR(curStr);
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// Set Channel
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StSetChannel( curStr->channel );
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// Mod Playback
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loadMod();
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startMusic();
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// Main loop
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while (1)
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{
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// Only display background STR if drawMenu is set
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if (drawMenu)
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{
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SetDispMask(1);
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drawBG();
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}
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// While end of str is not reached, play it
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if (curStr->endPlayback == 1)
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{
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// Replay STR
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resetSTR(curStr);
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}
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if ( curStr->endPlayback == 0)
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{
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playSTR(&curStr);
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if ( !curStr->channel )
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{
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// Display title
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FntPrint("%s", menu_items[0].title);
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// Flickering text
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if ( sectorHeader->frameCount > 5 )
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{
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FntFlush(-1);
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} else if ( (sectorHeader->frameCount % 2) && sectorHeader->frameCount < 5 )
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{
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FntFlush(-1);
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}
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}
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}
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display();
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}
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return 0;
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}
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