# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1363654051 -7200
# Node ID b4c72c135f5b618aafe81f320e868f7b5390d0c6
# Parent  62b5f87ebb2a785c218fed72534475ba336eac05
Add a dmlib-based recording patch for archival purposes.

diff -r 62b5f87ebb2a -r b4c72c135f5b recording.patch
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/recording.patch	Tue Mar 19 02:47:31 2013 +0200
@@ -0,0 +1,192 @@
+diff -r 62b5f87ebb2a 3x666.c
+--- a/3x666.c	Tue Mar 19 02:46:34 2013 +0200
++++ b/3x666.c	Tue Mar 19 02:46:50 2013 +0200
+@@ -7,6 +7,19 @@
+ #include "config.h"
+ #include "3xfont.h"
+ 
++//#define RECORD 1
++#define RECORD_FPS 50
++#define RECORD_AUDIO_FILE "audio.wav"
++#define RECORD_VIDEO_FILE "%05d.png"
++
++
++#ifdef RECORD
++#include <errno.h>
++#include "dmlib.h"
++#include "dmwav.h"
++#include "libgfx.h"
++
++#else
+ 
+ #if !defined(FALSE) && !defined(TRUE) && !defined(BOOL)
+ typedef enum { FALSE = 0, TRUE = 1 } BOOL;
+@@ -20,6 +33,8 @@
+ #    endif
+ #endif
+ 
++#endif
++
+ 
+ struct
+ {
+@@ -51,6 +66,7 @@
+ void setpal(void);
+ 
+ 
++#ifndef RECORD
+ 
+ static void dmPrintVA(int level, const char *fmt, va_list ap)
+ {
+@@ -98,6 +114,7 @@
+     dmErrorVA(fmt, ap);
+     va_end(ap);
+ }
++#endif
+ 
+     
+ static int engineGetTick()
+@@ -964,10 +981,12 @@
+     engine.optAfmt.callback = engineAudioCallback;
+     
+     // Initialize SDL audio
++#ifndef RECORD
+     if (SDL_OpenAudio(&engine.optAfmt, NULL) < 0)
+     {
+         dmError("Couldn't open SDL audio: %s\n", SDL_GetError());
+     }
++#endif
+ 
+     // Initialize SDL video
+     if (!engineInitializeVideo())
+@@ -989,13 +1008,53 @@
+ 
+     // Start audio, enter main loop
+     dmPrint(0, "We are go.\n");
++#ifdef RECORD
++    DMImage image;
++    DMImageSpec imageSpec =
++{
++    .scale = 1,
++    .nplanes = 4,
++    .interleave = FALSE,
++    .paletted = FALSE,
++    .format = DM_IFMT_RGB,
++};
++    int audioSize = 0, audioBufSize = sizeof(Sint16) * (engine.optAfmt.freq / RECORD_FPS) * engine.optAfmt.channels;
++    Uint8 *audioBuf = malloc(audioBufSize);
++    FILE *audioFile = NULL;
++    char videoFilename[64];
++    engine.startTime = 0;
++
++    image.width = engine.screen->w;
++    image.height = engine.screen->h;
++    image.pitch = engine.screen->pitch;
++    image.ncolors = 256;
++    image.constpal = TRUE;
++    image.pal = (DMColor *) engine.screen->format->palette->colors;
++    image.data = engine.screen->pixels;
++    
++    
++    // Open output file(s)
++    if ((audioFile = fopen(RECORD_AUDIO_FILE, "wb")) == NULL)
++    {
++        dmError("Error opening output file '%s'. (%s)\n", RECORD_AUDIO_FILE, strerror(errno));
++        goto error_exit;
++    }
++
++    // Write initial header
++    dmWriteWAVHeader(audioFile, 16, engine.optAfmt.freq, engine.optAfmt.channels, 1024);
++
++#else
+     SDL_LockAudio();
+     SDL_PauseAudio(0);
+     SDL_UnlockAudio();
+     engine.startTime = SDL_GetTicks();
++#endif
+ 
+     while (!engine.exitFlag)
+     {
++#ifdef RECORD
++        engine.frameTime += 1000 / RECORD_FPS;
++#else
+         // Handle SDL events
+         while (SDL_PollEvent(&engine.event))
+         switch (engine.event.type)
+@@ -1036,8 +1095,9 @@
+                 break;
+         }
+ 
++        engine.frameTime = SDL_GetTicks();
++#endif
+         // Draw frame
+-        engine.frameTime = SDL_GetTicks();
+         int qt = engineGetTick(&engine);
+ 
+         if (SDL_MUSTLOCK(engine.screen) != 0 && SDL_LockSurface(engine.screen) != 0)
+@@ -1154,13 +1214,25 @@
+             n /= 10;
+         }
+ 
+-        // Flip screen, increase frame count, wait
++#ifdef RECORD
++        // Dump frame to file
++        snprintf(videoFilename, sizeof(videoFilename), RECORD_VIDEO_FILE, engine.frameCount);
++        dmWritePNGImage(videoFilename, &image, &imageSpec);
++        
++        // Render audio to another
++        engineAudioCallback(NULL, audioBuf, audioBufSize);
++        audioSize += fwrite(audioBuf, sizeof(Uint8), audioBufSize, audioFile);
++#endif
++
+         if (SDL_MUSTLOCK(engine.screen) != 0)
+             SDL_UnlockSurface(engine.screen);
+ 
++        // Flip screen, increase frame count, wait
+         engine.frameCount++;
+         SDL_Flip(engine.screen);
++#ifndef RECORD
+         SDL_Delay(20);
++#endif
+     }
+ 
+ error_exit:
+@@ -1176,9 +1248,26 @@
+     if (engine.screen)
+         SDL_FreeSurface(engine.screen);
+ 
++#ifdef RECORD
++    if (audioFile != NULL)
++    {
++        // Write the correct WAV header
++        if (fseek(audioFile, 0L, SEEK_SET) != 0)
++        {
++            dmError("Error rewinding to header position!\n");
++            return 9;
++        }
++        
++        dmWriteWAVHeader(audioFile, 16, engine.optAfmt.freq, engine.optAfmt.channels, audioSize / sizeof(Sint16));
++        
++        // Done!
++        fclose(audioFile);
++    }
++#else
+     SDL_LockAudio();
+     SDL_PauseAudio(1);
+     SDL_UnlockAudio();
++#endif
+ 
+     audio_close();
+ 
+diff -r 62b5f87ebb2a Makefile.gen
+--- a/Makefile.gen	Tue Mar 19 02:46:34 2013 +0200
++++ b/Makefile.gen	Tue Mar 19 02:46:50 2013 +0200
+@@ -26,6 +26,8 @@
+ $(OBJPATH)3x666.o: 3x666.c config.h 3xfont.h
+ 	$(CC) $(CFLAGS) -c -o $@ $< $(SDL_CFLAGS) -Idmlib/
+ 
++$(BINPATH)3x666$(EXEEXT): $(OBJPATH)3x666.o dmlib/unix/dmwav.o dmlib/unix/dmfile.o dmlib/unix/dmlib.o dmlib/unix/libgfx.o dmlib/unix/dmbstr.o
++	$(CC) -o $@ $+ $(LDFLAGS) $(SDL_LDFLAGS) -lpng
+ 
+ 
+ ###