# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1349088189 -10800
# Node ID b908fda1036e8b06dcc4ffff51f14669306a7837
# Parent  a791146e309484a29ef33d9e15af6a1fabea12d6
Add a simplistic skeleton of a module player with SDL-based view.

diff -r a791146e3094 -r b908fda1036e Makefile.gen
--- a/Makefile.gen	Mon Oct 01 13:42:47 2012 +0300
+++ b/Makefile.gen	Mon Oct 01 13:43:09 2012 +0300
@@ -151,7 +151,7 @@
 ifeq ($(DM_BUILD_TOOLS),yes)
 ifeq ($(DMRES_STDIO),yes)
 ifeq ($(SUP_MODLOAD),yes)
-BINARIES+= viewmod mod2wav testpl
+BINARIES+= viewmod mod2wav testpl ppl
 endif
 
 ifeq ($(JSS_SUP_JSSMOD),yes)
@@ -289,6 +289,10 @@
 	@echo " LINK $+"
 	@$(CC) -o $@ $+ $(DM_LDFLAGS)
 
+$(BINPATH)ppl$(EXEEXT): $(OBJPATH)ppl.o $(DMLIB_A)
+	@echo " LINK $+"
+	@$(CC) -o $@ $+ $(DM_LDFLAGS)
+
 
 ###
 ### Special targets
diff -r a791146e3094 -r b908fda1036e ppl.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ppl.c	Mon Oct 01 13:43:09 2012 +0300
@@ -0,0 +1,592 @@
+#include "jss.h"
+#include "jssmod.h"
+#include "jssmix.h"
+#include "jssplr.h"
+
+#include "dmlib.h"
+#include "dmargs.h"
+#include "dmimage.h"
+#include "dmtext.h"
+
+#include <errno.h>
+
+struct
+{
+    BOOL exitFlag;
+    SDL_Surface *screen;
+    SDL_Event event;
+    int optScrWidth, optScrHeight, optVFlags, optScrDepth;
+} engine;
+
+struct
+{
+    Uint32 boxBg, inboxBg, box1, box2, viewDiv, activeRow;
+} col;
+
+
+DMBitmapFont *font = NULL;
+
+char    *optFilename = NULL,
+        *optFontFilename = "c64font.png";
+int     optOutFormat = JSS_AUDIO_S16,
+        optOutChannels = 2,
+        optOutFreq = 48000,
+        optMuteOChannels = -1,
+        optStartOrder = -1;
+BOOL    optUsePlayTime = FALSE;
+size_t  optPlayTime;
+
+
+DMOptArg optList[] =
+{
+    {  0, '?', "help",     "Show this help", OPT_NONE },
+    {  1, 'v', "verbose",  "Be more verbose", OPT_NONE },
+    {  2,   0, "fs",       "Fullscreen", OPT_NONE },
+    {  3, 'w', "window",   "Initial window size/resolution -w 640x480", OPT_ARGREQ },
+
+    {  4, '1', "16bit",    "16-bit output", OPT_NONE },
+    {  5, '8', "8bit",     "8-bit output", OPT_NONE },
+    {  6, 'm', "mono",     "Mono output", OPT_NONE },
+    {  7, 's', "stereo",   "Stereo output", OPT_NONE },
+    {  8, 'f', "freq",     "Output frequency", OPT_ARGREQ },
+
+    {  9, 'M', "mute",     "Mute other channels than #", OPT_ARGREQ },
+    { 10, 'o', "order",    "Start from order #", OPT_ARGREQ },
+    { 11, 't', "time",     "Play for # seconds", OPT_ARGREQ },
+};
+
+const int optListN = sizeof(optList) / sizeof(optList[0]);
+
+
+void argShowHelp()
+{
+    dmPrintBanner(stdout, dmProgName, "[options] <module>");
+    dmArgsPrintHelp(stdout, optList, optListN);
+}
+
+
+BOOL argHandleOpt(const int optN, char *optArg, char *currArg)
+{
+    switch (optN) {
+        case 0:
+            argShowHelp();
+            exit(0);
+            break;
+
+        case 1:
+            dmVerbosity++;
+            break;
+        
+        case 2:
+            engine.optVFlags |= SDL_FULLSCREEN;
+            break;
+
+        case 3:
+            {
+                int w, h;
+                if (sscanf(optArg, "%dx%d", &w, &h) == 2)
+                {
+                    if (w < 320 || h < 200 || w > 3200 || h > 3200)
+                    {
+                        dmError("Invalid width or height: %d x %d\n", w, h);
+                        return FALSE;
+                    }
+                    engine.optScrWidth = w;
+                    engine.optScrHeight = h;
+                }
+                else 
+                {
+                    dmError("Invalid size argument '%s'.\n", optArg);
+                    return FALSE;
+                }
+            }
+            break;
+
+        case 4:
+            optOutFormat = JSS_AUDIO_S16;
+            break;
+
+        case 5:
+            optOutFormat = JSS_AUDIO_U8;
+            break;
+
+        case 6:
+            optOutChannels = JSS_AUDIO_MONO;
+            break;
+
+        case 7:
+            optOutChannels = JSS_AUDIO_STEREO;
+            break;
+
+        case 8:
+            optOutFreq = atoi(optArg);
+            break;
+
+        case 9:
+            optMuteOChannels = atoi(optArg);
+            break;
+
+        case 10:
+            optStartOrder = atoi(optArg);
+            break;
+
+        case 11:
+            optPlayTime = atoi(optArg);
+            optUsePlayTime = TRUE;
+            break;
+
+        default:
+            dmError("Unknown option '%s'.\n", currArg);
+            return FALSE;
+    }
+    
+    return TRUE;
+}
+
+
+BOOL argHandleFile(char *currArg)
+{
+    if (!optFilename)
+        optFilename = currArg;
+    else
+    {
+        dmError("Too many filename arguments '%s'\n", currArg);
+        return FALSE;
+    }
+    
+    return TRUE;
+}
+
+
+BOOL dmInitializeVideo()
+{
+    engine.screen = SDL_SetVideoMode(
+        engine.optScrWidth, engine.optScrHeight, engine.optScrDepth,
+        engine.optVFlags | SDL_RESIZABLE | SDL_SWSURFACE | SDL_HWPALETTE);
+
+    if (engine.screen == NULL)
+    {
+        dmError("Can't SDL_SetVideoMode(): %s\n", SDL_GetError());
+        return FALSE;
+    }
+
+    col.inboxBg    = dmMapRGB(engine.screen, 0, 0, 0);
+    col.boxBg      = dmMapRGB(engine.screen, 200, 100, 30);
+    col.box1       = dmMapRGB(engine.screen, 250, 250, 200);
+    col.box2       = dmMapRGB(engine.screen, 100, 50, 0);
+    col.viewDiv    = dmMapRGB(engine.screen, 0,0,0);
+    col.activeRow  = dmMapRGB(engine.screen, 150,80,0);
+
+    return TRUE;
+}
+
+
+static const char patNoteTable[12][3] =
+{
+    "C-", "C#", "D-",
+    "D#", "E-", "F-",
+    "F#", "G-", "G#",
+    "A-", "A#", "B-"
+};
+
+
+#define jmpNMODEffectTable (36)
+static const char jmpMODEffectTable[jmpNMODEffectTable] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+void dmPrintNote(SDL_Surface *screen, int xc, int yc, JSSNote *n)
+{
+    char text[32];
+    char *ptr = text;
+    
+    switch (n->note)
+    {
+        case jsetNotSet:
+            sprintf(ptr, "...§");
+            break;
+        case jsetNoteOff:
+            sprintf(ptr, "===§");
+            break;
+        default:
+            sprintf(ptr, "%s%i§",
+                patNoteTable[n->note % 12],
+                n->note / 12);
+            break;
+    }
+
+    ptr += 4;
+
+    if (n->instrument != jsetNotSet)
+        sprintf(ptr, "%.2x§", n->instrument + 1);
+    else
+        sprintf(ptr, "..§");
+
+    ptr += 3;
+
+    if (n->volume == jsetNotSet)
+        sprintf(ptr, "..§");
+    else
+    if (n->volume >= 0x00 && n->volume <= 0x40)
+        sprintf(ptr, "%.2x§", n->volume);
+    else
+    {
+        char c;
+        switch (n->volume & 0xf0)
+        {
+            case 0x50: c = '-'; break;
+            case 0x60: c = '+'; break;
+            case 0x70: c = '/'; break;
+            case 0x80: c = '\\'; break;
+            case 0x90: c = 'S'; break;
+            case 0xa0: c = 'V'; break;
+            case 0xb0: c = 'P'; break;
+            case 0xc0: c = '<'; break;
+            case 0xd0: c = '>'; break;
+            case 0xe0: c = 'M'; break;
+            default:   c = '?'; break;
+        }
+        sprintf(ptr, "%c%x§", c, (n->volume & 0x0f));
+    }
+    
+    ptr += 3;
+    
+    if (n->effect >= 0 && n->effect < jmpNMODEffectTable)
+        *ptr = jmpMODEffectTable[n->effect];
+    else
+    if (n->effect == jsetNotSet)
+        *ptr = '.';
+    else
+        *ptr = '?';
+
+    ptr += 1;
+
+    if (n->param != jsetNotSet)
+        sprintf(ptr, "%.2x", n->param);
+    else
+        sprintf(ptr, "..");
+
+    dmDrawBMTextConst(screen, font, DMD_SATURATE, xc, yc, text);
+}
+
+
+void dmDisplayPattern(SDL_Surface *screen, int x0, int y0, int x1, int y1, JSSPattern *pat, int row, int choffs)
+{
+    int cwidth = (font->width * 10 + 3 * font->width + 5),
+        lwidth = 6 + font->width * 3,
+        qwidth  = ((x1 - x0 - lwidth) / cwidth),
+        qheight = ((y1 - y0 - 4) / (font->height + 1)),
+        nrow, nchannel,
+        midrow = qheight / 2;
+    
+    dmDrawBox3D(screen, x0 + lwidth, y0, x1, y1,
+        col.boxBg, col.box2, col.box1);
+
+    for (nchannel = 1; nchannel < qwidth; nchannel++)
+    {
+        dmDrawVLine(screen, y0 + 1, y1 - 1, x0 + lwidth + 1 + nchannel * cwidth, col.viewDiv);
+    }
+    
+
+    for (nrow = 0; nrow < qheight; nrow++)
+    {
+        int yc = y0 + 2 + (font->height + 1) * nrow;
+        
+        dmDrawBMText(screen, font, DMD_SATURATE, x0, yc, "%03d", nrow);
+
+        if (nrow == row)
+        {
+            dmFillRect(screen, x0 + lwidth + 1, yc - 1, x1 - 1, yc + font->height, col.activeRow);
+        }
+
+        for (nchannel = 0; nchannel < qwidth; nchannel++)
+        {
+            if (choffs + nchannel >= pat->nchannels)
+                break;
+
+            dmPrintNote(screen, x0 + lwidth + 4 + nchannel * cwidth, yc,
+                pat->data + (pat->nchannels * nrow) + choffs + nchannel);
+        }
+    }
+}
+
+
+void audioCallback(void *userdata, Uint8 *stream, int len)
+{
+    JSSMixer *d = (JSSMixer *) userdata;
+
+    if (d != NULL)
+    {
+        jvmRenderAudio(d, stream, len / jvmGetSampleSize(d));
+    }
+}
+
+
+int main(int argc, char *argv[])
+{
+    BOOL initSDL = FALSE;
+    DMResource *file = NULL;
+    JSSModule *mod = NULL;
+    JSSMixer *dev = NULL;
+    JSSPlayer *plr = NULL;
+    SDL_AudioSpec afmt;
+    int result = -1;
+
+    memset(&afmt, 0, sizeof(afmt));
+    memset(&engine, 0, sizeof(engine));
+
+    engine.optScrWidth = 640;
+    engine.optScrHeight = 480;
+    engine.optScrDepth = 32;
+
+    dmInitProg("ppl", "Penis Player", "0.1", NULL, NULL);
+
+    // Parse arguments
+    if (!dmArgsProcess(argc, argv, optList, optListN,
+        argHandleOpt, argHandleFile, TRUE))
+        exit(1);
+
+    // Open the files
+    if (optFilename == NULL)
+    {
+        dmError("No filename specified.\n");
+        return 1;
+    }
+    
+    if ((file = dmf_create_stdio(optFilename)) == NULL)
+    {
+        dmError("Error opening input file '%s'. (%s)\n",
+            optFilename, strerror(errno));
+        return 1;
+    }
+
+    if ((file = dmf_create_stdio(optFilename)) == NULL)
+    {
+        dmError("Error opening input file '%s'. (%s)\n",
+            optFilename, strerror(errno));
+        return 1;
+    }
+
+    // Initialize miniJSS
+    jssInit();
+
+    // Read module file
+    dmMsg(1, "Reading file: %s\n", optFilename);
+#ifdef JSS_SUP_XM
+    dmMsg(2, "* Trying XM...\n");
+    result = jssLoadXM(file, &mod);
+#endif
+#ifdef JSS_SUP_JSSMOD
+    if (result != 0)
+    {
+        size_t bufgot, bufsize = dmfsize(file);
+        Uint8 *buf = dmMalloc(bufsize);
+        dmfseek(file, 0L, SEEK_SET);
+        dmMsg(2, "* Trying JSSMOD (%d bytes, %p)...\n", bufsize, buf);
+        if ((bufgot = dmfread(buf, 1, bufsize, file)) != bufsize)
+        {
+            dmf_close(file);
+            dmError("Error reading file (not enough data %d), #%d: %s\n",
+                bufgot, dmferror(file), dmErrorStr(dmferror(file)));
+            goto error_exit;
+        }
+        result = jssLoadJSSMOD(buf, bufsize, &mod);
+        dmFree(buf);
+    }
+#endif
+    dmf_close(file);
+
+    if (result != DMERR_OK)
+    {
+        dmError("Error loading module file, %d: %s\n",
+            result, dmErrorStr(result));
+        goto error_exit;
+    }
+
+    // Try to convert it
+    if ((result = jssConvertModuleForPlaying(mod)) != DMERR_OK)
+    {
+        dmError("Could not convert module for playing, %d: %s\n",
+            result, dmErrorStr(result));
+        goto error_exit;
+    }
+
+    if ((file = dmf_create_stdio(optFontFilename)) == NULL)
+    {
+        dmError("Error opening input file '%s'. (%s)\n",
+            optFontFilename, strerror(errno));
+        goto error_exit;
+    }
+    SDL_Surface *fontbmap = dmLoadImage(file);
+    dmf_close(file);
+    if (fontbmap == NULL)
+    {
+        dmError("Could not load image file '%s'.\n", optFontFilename);
+        goto error_exit;
+    }
+    
+    if ((result = dmCreateBitmapFontFromImage(fontbmap, 8, 8, &font)) != DMERR_OK)
+    {
+        dmError("Could not create a font from image, %d: %s\n",
+            result, dmErrorStr(result));
+        goto error_exit;
+    }
+    SDL_FreeSurface(fontbmap);
+
+
+    // Initialize SDL components
+    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER) != 0)
+    {
+        dmError("Could not initialize SDL: %s\n", SDL_GetError());
+        goto error_exit;
+    }
+    initSDL = TRUE;
+
+
+    // Initialize mixing device
+    dmMsg(2, "Initializing miniJSS mixer with: %d, %d, %d\n",
+        optOutFormat, optOutChannels, optOutFreq);
+
+    dev = jvmInit(optOutFormat, optOutChannels, optOutFreq, JMIX_AUTO);
+    if (dev == NULL)
+    {
+        dmError("jvmInit() returned NULL\n");
+        goto error_exit;
+    }
+    
+    switch (optOutFormat)
+    {
+        case JSS_AUDIO_S16: afmt.format = AUDIO_S16SYS; break;
+        case JSS_AUDIO_U16: afmt.format = AUDIO_U16SYS; break;
+        case JSS_AUDIO_S8:  afmt.format = AUDIO_S8; break;
+        case JSS_AUDIO_U8:  afmt.format = AUDIO_U8; break;
+        default:
+            dmError("Unsupported audio format %d (could not set matching SDL format)\n",
+                optOutFormat);
+            goto error_exit;
+    }
+
+    afmt.freq     = optOutFreq;
+    afmt.channels = optOutChannels;
+    afmt.samples  = optOutFreq * optOutChannels * 4;
+    afmt.callback = audioCallback;
+    afmt.userdata = (void *) dev;
+
+    // Open the audio device
+    if (SDL_OpenAudio(&afmt, NULL) < 0)
+    {
+        dmError("Couldn't open SDL audio: %s\n",
+            SDL_GetError());
+        goto error_exit;
+    }
+    
+    // Initialize player
+    if ((plr = jmpInit(dev)) == NULL)
+    {
+        dmError("jmpInit() returned NULL\n");
+        goto error_exit;
+    }
+    
+    jvmSetCallback(dev, jmpExec, plr);
+    jmpSetModule(plr, mod);
+    jmpPlayOrder(plr, 0);
+    jvmSetGlobalVol(dev, 60);
+
+    // Initialize video
+    if (!dmInitializeVideo())
+        goto error_exit;
+
+    SDL_WM_SetCaption(dmProgDesc, dmProgName);
+
+
+    // okay, main loop here ... "play" module and print out info
+    SDL_PauseAudio(0);
+
+    while (!engine.exitFlag && plr->isPlaying)
+    {
+        while (SDL_PollEvent(&engine.event))
+        switch (engine.event.type)
+        {
+            case SDL_KEYDOWN:
+                switch (engine.event.key.keysym.sym)
+                {
+                    case SDLK_ESCAPE:
+                        engine.exitFlag = TRUE;
+                        break;
+                    
+                    default:
+                        break;
+                }
+
+                break;
+
+            case SDL_VIDEORESIZE:
+                engine.optScrWidth = engine.event.resize.w;
+                engine.optScrHeight = engine.event.resize.h;
+
+                if (!dmInitializeVideo())
+                    goto error_exit;
+
+                break;
+
+            case SDL_VIDEOEXPOSE:
+                break;
+
+            case SDL_QUIT:
+                engine.exitFlag = TRUE;
+                break;
+        }
+
+        // Draw frame
+        if (SDL_MUSTLOCK(engine.screen) != 0 && SDL_LockSurface(engine.screen) != 0)
+        {
+            dmError("Can't lock surface.\n");
+            goto error_exit;
+        }
+        
+        dmDrawBox3D(engine.screen, 0, 0, engine.screen->w - 1, engine.screen->h - 1,
+            col.boxBg, col.box1, col.box2);
+        
+        dmDrawBMText(engine.screen, font, DMD_SATURATE, 5, 5, "%s v%s by ccr/TNSP - (c) Copyright 2012 TNSP", dmProgDesc, dmProgVersion);
+
+
+        JSS_LOCK(dev);
+        JSS_LOCK(plr);
+
+        dmDrawBMText(engine.screen, font, DMD_SATURATE, 5, 5 + 9,
+            "Tempo %3d | Speed: %3d | Row: %3d | Order: %d",
+            plr->tempo, plr->speed, plr->row, plr->order
+            );
+
+        dmDisplayPattern(engine.screen, 5, 30, engine.screen->w - 6, engine.screen->h - 10,
+            plr->pattern, plr->row, 0);
+        JSS_UNLOCK(plr);
+        JSS_UNLOCK(dev);
+
+        // Flip screen
+        if (SDL_MUSTLOCK(engine.screen) != 0)
+            SDL_UnlockSurface(engine.screen);
+
+        SDL_Flip(engine.screen);
+        SDL_Delay(10);
+    }
+
+error_exit:
+    SDL_PauseAudio(1);
+    
+    if (engine.screen)
+        SDL_FreeSurface(engine.screen);
+
+    SDL_LockAudio();
+    jmpClose(plr);
+    jvmClose(dev);
+    jssFreeModule(mod);
+    SDL_UnlockAudio();
+
+    dmFreeBitmapFont(font);
+
+    if (initSDL)
+        SDL_Quit();
+
+    jssClose();
+
+    return 0;
+}