syna.h

   1 /* Synaesthesia - program to display sound graphically
   2    Copyright (C) 1997  Paul Francis Harrison
   3    Copyright (C) 2009  Rafał Rzepecki <divided.mind@gmail.com>
   4
   5   This program is free software; you can redistribute it and/or modify it
   6   under the terms of the GNU General Public License as published by the
   7   Free Software Foundation; either version 2 of the License, or (at your
   8   option) any later version.
   9
  10   This program is distributed in the hope that it will be useful, but
  11   WITHOUT ANY WARRANTY; without even the implied warranty of
  12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13   General Public License for more details.
  14
  15   You should have received a copy of the GNU General Public License
  16   along with this program; if not, write to the Free Software
  17   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18
  19   The author may be contacted at:
  20     phar6@student.monash.edu.au
  21   or
  22     27 Bond St., Mt. Waverley, 3149, Melbourne, Australia
  23 */
  24
  25 #include "config.h"
  26
  27 #include "polygon.h"
  28
  29 /***************************************/
  30 /*   For the incurably fiddle prone:   */
  31
  32 /* log2 of sample size */
  33 #define LogSize 10 //was 9
  34
  35 /* Brightness */
  36 #define Brightness 150
  37
  38 /* Sample frequency*/
  39 #define Frequency 22050
  40
  41 #define DefaultWidth  200
  42 #define DefaultHeight 200
  43
  44 /***************************************/
  45
  46 #define NumSamples (1<<LogSize)
  47 #define RecSize (1<<LogSize-Overlap)
  48
  49 #ifdef __FreeBSD__
  50
  51 typedef unsigned short sampleType;
  52
  53 #else
  54
  55 typedef short sampleType;
  56
  57 #ifndef __linux__
  58
  59 #warning This target has not been tested!
  60
  61 #endif
  62 #endif
  63
  64 #ifdef __FreeBSD__
  65 #include <machine/endian.h>
  66 #else
  67 #include <endian.h>
  68 #endif
  69
  70 #if BYTE_ORDER == BIG_ENDIAN
  71 #define BIGENDIAN
  72 #else
  73 #define LITTLEENDIAN
  74 #endif
  75
  76 void error(char *str,bool syscall=false);
  77 void inline attempt(int x,char *y,bool syscall=false) { if (x == -1) error(y,syscall); }
  78 void warning(char *str,bool syscall=false);
  79 void inline attemptNoDie(int x,char *y,bool syscall=false) { if (x == -1) warning(y,syscall); }
  80
  81 /* *wrap */
  82 struct BaseScreen {
  83   virtual bool init(int xHint, int yHint, int widthHint, int heightHint, bool fullscreen) = 0;
  84   virtual void setPalette(unsigned char *palette) = 0;
  85   virtual void end() = 0;
  86   virtual void inputUpdate(int &mouseX,int &mouseY,int &mouseButtons,char &keyHit) = 0;
  87   virtual void show() = 0;
  88   virtual void toggleFullScreen() { }
  89 };
  90
  91 struct SvgaScreen : public BaseScreen {
  92   bool init(int xHint, int yHint, int widthHint, int heightHint, bool fullscreen);
  93   void setPalette(unsigned char *palette);
  94   void end();
  95   void inputUpdate(int &mouseX,int &mouseY,int &mouseButtons,char &keyHit);
  96   void show();
  97 };
  98
  99 struct RawScreen : public BaseScreen {
 100   bool init(int xHint, int yHint, int widthHint, int heightHint, bool fullscreen);
 101   void setPalette(unsigned char *palette);
 102   void end();
 103   void inputUpdate(int &mouseX,int &mouseY,int &mouseButtons,char &keyHit);
 104   void show();
 105 };
 106
 107 struct SdlScreen : 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   void toggleFullScreen();
 114 };
 115
 116 struct XScreen : public BaseScreen {
 117   bool init(int xHint, int yHint, int widthHint, int heightHint, bool fullscreen);
 118   void setPalette(unsigned char *palette);
 119   void end();
 120   void inputUpdate(int &mouseX,int &mouseY,int &mouseButtons,char &keyHit);
 121   void show();
 122 };
 123
 124 /* core */
 125 extern BaseScreen *screen;
 126 extern sampleType *data;
 127 extern Bitmap<unsigned short> outputBmp, lastOutputBmp, lastLastOutputBmp;
 128 #define output ((unsigned char*)outputBmp.data)
 129 #define lastOutput ((unsigned char*)lastOutputBmp.data)
 130 #define lastLastOutput ((unsigned char*)lastLastOutputBmp.data)
 131
 132 struct Combiner {
 133   static unsigned short combine(unsigned short a,unsigned short b) {
 134     //Not that i want to give the compiler a hint or anything...
 135     unsigned char ah = a>>8, al = a&255, bh = b>>8, bl = b&255;
 136     if (ah < 64) ah *= 4; else ah = 255;
 137     if (al < 64) al *= 4; else al = 255;
 138     if (bh > ah) ah = bh;
 139     if (bl > al) al = bl;
 140     return ah*256+al;
 141   }
 142 };
 143
 144 extern PolygonEngine<unsigned short,Combiner,2> polygonEngine;
 145
 146 extern int outWidth, outHeight;
 147
 148 void allocOutput(int w,int h);
 149
 150 void coreInit();
 151 void setStarSize(double size);
 152 int coreGo();
 153 void fade();
 154
 155 /* ui */
 156 void interfaceInit();
 157 void interfaceSyncToState();
 158 void interfaceEnd();
 159 bool interfaceGo();
 160
 161 enum SymbolID {
 162   Speaker, Bulb,
 163   Play, Pause, Stop, SkipFwd, SkipBack,
 164   Handle, Pointer, Open, NoCD, Exit,
 165   Zero, One, Two, Three, Four,
 166   Five, Six, Seven, Eight, Nine,
 167   Slider, Selector, Plug, Loop, Box, Bar,
 168   Flame, Wave, Stars, Star, Diamond, Size, FgColor, BgColor,
 169   Save, Reset, TrackSelect,
 170   NotASymbol
 171 };
 172
 173 /* State information */
 174
 175 extern SymbolID state;
 176 extern int track, frames;
 177 extern double trackProgress;
 178 extern char **playList;
 179 extern int playListLength, playListPosition;
 180 extern SymbolID fadeMode;
 181 extern bool pointsAreDiamonds;
 182 extern double brightnessTwiddler;
 183 extern double starSize;
 184 extern double fgRedSlider, fgGreenSlider, bgRedSlider, bgGreenSlider;
 185
 186 extern double volume;
 187
 188 void setStateToDefaults();
 189 void saveConfig();
 190
 191 void putString(char *string,int x,int y,int red,int blue);
 192
 193 /* sound */
 194 enum SoundSource { SourceLine, SourceCD, SourcePipe, SourceESD };
 195
 196 void cdOpen(char *cdromName);
 197 void cdClose(void);
 198 void cdGetStatus(int &track, int &frames, SymbolID &state);
 199 void cdPlay(int trackFrame, int endFrame=-1);
 200 void cdStop(void);
 201 void cdPause(void);
 202 void cdResume(void);
 203 void cdEject(void);
 204 void cdCloseTray(void);
 205 int cdGetTrackCount(void);
 206 int cdGetTrackFrame(int track);
 207 void openSound(SoundSource sound, int downFactor, char *dspName, char *mixerName);
 208 void closeSound();
 209 void setupMixer(double &loudness);
 210 void setVolume(double loudness);
 211 int getNextFragment(void);
 212