syna.h

   1 /* Synaesthesia - program to display sound graphically
   2    Copyright (C) 1997  Paul Francis Harrison
   3
   4   This program is free software; you can redistribute it and/or modify it
   5   under the terms of the GNU General Public License as published by the
   6   Free Software Foundation; either version 2 of the License, or (at your
   7   option) any later version.
   8
   9   This program is distributed in the hope that it will be useful, but
  10   WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12   General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License along
  15   with this program; if not, write to the Free Software Foundation, Inc.,
  16   675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18   The author may be contacted at:
  19     phar6@student.monash.edu.au
  20   or
  21     27 Bond St., Mt. Waverley, 3149, Melbourne, Australia
  22 */
  23
  24 #include "config.h"
  25
  26 #include "polygon.h"
  27
  28 /***************************************/
  29 /*   For the incurably fiddle prone:   */
  30
  31 /* log2 of sample size */
  32 #define LogSize 10 //was 9
  33
  34 /* Brightness */
  35 #define Brightness 150
  36
  37 /* Sample frequency*/
  38 #define Frequency 22050
  39
  40 #define DefaultWidth  200
  41 #define DefaultHeight 200
  42
  43 /***************************************/
  44
  45 #define NumSamples (1<<LogSize)
  46 #define RecSize (1<<LogSize-Overlap)
  47
  48 #ifdef __FreeBSD__
  49
  50 typedef unsigned short sampleType;
  51
  52 #else
  53
  54 typedef short sampleType;
  55
  56 #ifndef __linux__
  57
  58 #warning This target has not been tested!
  59
  60 #endif
  61 #endif
  62
  63 #ifdef __FreeBSD__
  64 #include <machine/endian.h>
  65 #else
  66 #include <endian.h>
  67 #endif
  68
  69 #if BYTE_ORDER == BIG_ENDIAN
  70 #define BIGENDIAN
  71 #else
  72 #define LITTLEENDIAN
  73 #endif
  74
  75 void error(char *str,bool syscall=false);
  76 void inline attempt(int x,char *y,bool syscall=false) { if (x == -1) error(y,syscall); }
  77 void warning(char *str,bool syscall=false);
  78 void inline attemptNoDie(int x,char *y,bool syscall=false) { if (x == -1) warning(y,syscall); }
  79
  80 /* *wrap */
  81 struct BaseScreen {
  82   virtual bool init(int xHint, int yHint, int widthHint, int heightHint, bool fullscreen) = 0;
  83   virtual void setPalette(unsigned char *palette) = 0;
  84   virtual void end() = 0;
  85   virtual void inputUpdate(int &mouseX,int &mouseY,int &mouseButtons,char &keyHit) = 0;
  86   virtual void show() = 0;
  87   virtual void toggleFullScreen() { }
  88 };
  89
  90 struct SvgaScreen : public BaseScreen {
  91   bool init(int xHint, int yHint, int widthHint, int heightHint, bool fullscreen);
  92   void setPalette(unsigned char *palette);
  93   void end();
  94   void inputUpdate(int &mouseX,int &mouseY,int &mouseButtons,char &keyHit);
  95   void show();
  96 };
  97
  98 struct SdlScreen : public BaseScreen {
  99   bool init(int xHint, int yHint, int widthHint, int heightHint, bool fullscreen);
 100   void setPalette(unsigned char *palette);
 101   void end();
 102   void inputUpdate(int &mouseX,int &mouseY,int &mouseButtons,char &keyHit);
 103   void show();
 104   void toggleFullScreen();
 105 };
 106
 107 struct XScreen : public BaseScreen {
 108   bool init(int xHint, int yHint, int widthHint, int heightHint, bool fullscreen);
 109   void setPalette(unsigned char *palette);
 110   void end();
 111   void inputUpdate(int &mouseX,int &mouseY,int &mouseButtons,char &keyHit);
 112   void show();
 113 };
 114
 115 /* core */
 116 extern BaseScreen *screen;
 117 extern sampleType *data;
 118 extern Bitmap<unsigned short> outputBmp, lastOutputBmp, lastLastOutputBmp;
 119 #define output ((unsigned char*)outputBmp.data)
 120 #define lastOutput ((unsigned char*)lastOutputBmp.data)
 121 #define lastLastOutput ((unsigned char*)lastLastOutputBmp.data)
 122
 123 struct Combiner {
 124   static unsigned short combine(unsigned short a,unsigned short b) {
 125     //Not that i want to give the compiler a hint or anything...
 126     unsigned char ah = a>>8, al = a&255, bh = b>>8, bl = b&255;
 127     if (ah < 64) ah *= 4; else ah = 255;
 128     if (al < 64) al *= 4; else al = 255;
 129     if (bh > ah) ah = bh;
 130     if (bl > al) al = bl;
 131     return ah*256+al;
 132   }
 133 };
 134
 135 extern PolygonEngine<unsigned short,Combiner,2> polygonEngine;
 136
 137 extern int outWidth, outHeight;
 138
 139 void allocOutput(int w,int h);
 140
 141 void coreInit();
 142 void setStarSize(double size);
 143 int coreGo();
 144 void fade();
 145
 146 /* ui */
 147 void interfaceInit();
 148 void interfaceSyncToState();
 149 void interfaceEnd();
 150 bool interfaceGo();
 151
 152 enum SymbolID {
 153   Speaker, Bulb,
 154   Play, Pause, Stop, SkipFwd, SkipBack,
 155   Handle, Pointer, Open, NoCD, Exit,
 156   Zero, One, Two, Three, Four,
 157   Five, Six, Seven, Eight, Nine,
 158   Slider, Selector, Plug, Loop, Box, Bar,
 159   Flame, Wave, Stars, Star, Diamond, Size, FgColor, BgColor,
 160   Save, Reset, TrackSelect,
 161   NotASymbol
 162 };
 163
 164 /* State information */
 165
 166 extern SymbolID state;
 167 extern int track, frames;
 168 extern double trackProgress;
 169 extern char **playList;
 170 extern int playListLength, playListPosition;
 171 extern SymbolID fadeMode;
 172 extern bool pointsAreDiamonds;
 173 extern double brightnessTwiddler;
 174 extern double starSize;
 175 extern double fgRedSlider, fgGreenSlider, bgRedSlider, bgGreenSlider;
 176
 177 extern double volume;
 178
 179 void setStateToDefaults();
 180 void saveConfig();
 181
 182 void putString(char *string,int x,int y,int red,int blue);
 183
 184 /* sound */
 185 enum SoundSource { SourceLine, SourceCD, SourcePipe, SourceESD };
 186
 187 void cdOpen(char *cdromName);
 188 void cdClose(void);
 189 void cdGetStatus(int &track, int &frames, SymbolID &state);
 190 void cdPlay(int trackFrame, int endFrame=-1);
 191 void cdStop(void);
 192 void cdPause(void);
 193 void cdResume(void);
 194 void cdEject(void);
 195 void cdCloseTray(void);
 196 int cdGetTrackCount(void);
 197 int cdGetTrackFrame(int track);
 198 void openSound(SoundSource sound, int downFactor, char *dspName, char *mixerName);
 199 void closeSound();
 200 void setupMixer(double &loudness);
 201 void setVolume(double loudness);
 202 int getNextFragment(void);
 203