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   RawScreen(int _fps): fps(_fps) {}
 101   ~RawScreen() { end(); }
 102   bool init(int xHint, int yHint, int widthHint, int heightHint, bool fullscreen);
 103   void setPalette(unsigned char *palette);
 104   void end();
 105   void inputUpdate(int &mouseX,int &mouseY,int &mouseButtons,char &keyHit);
 106   void show();
 107   private:
 108     int fps;
 109 };
 110
 111 struct SdlScreen : public BaseScreen {
 112   bool init(int xHint, int yHint, int widthHint, int heightHint, bool fullscreen);
 113   void setPalette(unsigned char *palette);
 114   void end();
 115   void inputUpdate(int &mouseX,int &mouseY,int &mouseButtons,char &keyHit);
 116   void show();
 117   void toggleFullScreen();
 118 };
 119
 120 struct XScreen : public BaseScreen {
 121   bool init(int xHint, int yHint, int widthHint, int heightHint, bool fullscreen);
 122   void setPalette(unsigned char *palette);
 123   void end();
 124   void inputUpdate(int &mouseX,int &mouseY,int &mouseButtons,char &keyHit);
 125   void show();
 126 };
 127
 128 /* core */
 129 extern BaseScreen *screen;
 130 extern sampleType *data;
 131 extern Bitmap<unsigned short> outputBmp, lastOutputBmp, lastLastOutputBmp;
 132 #define output ((unsigned char*)outputBmp.data)
 133 #define lastOutput ((unsigned char*)lastOutputBmp.data)
 134 #define lastLastOutput ((unsigned char*)lastLastOutputBmp.data)
 135
 136 struct Combiner {
 137   static unsigned short combine(unsigned short a,unsigned short b) {
 138     //Not that i want to give the compiler a hint or anything...
 139     unsigned char ah = a>>8, al = a&255, bh = b>>8, bl = b&255;
 140     if (ah < 64) ah *= 4; else ah = 255;
 141     if (al < 64) al *= 4; else al = 255;
 142     if (bh > ah) ah = bh;
 143     if (bl > al) al = bl;
 144     return ah*256+al;
 145   }
 146 };
 147
 148 extern PolygonEngine<unsigned short,Combiner,2> polygonEngine;
 149
 150 extern int outWidth, outHeight;
 151
 152 void allocOutput(int w,int h);
 153
 154 void coreInit();
 155 void setStarSize(double size);
 156 int coreGo();
 157 void fade();
 158
 159 /* ui */
 160 void interfaceInit();
 161 void interfaceSyncToState();
 162 void interfaceEnd();
 163 bool interfaceGo();
 164
 165 enum SymbolID {
 166   Speaker, Bulb,
 167   Play, Pause, Stop, SkipFwd, SkipBack,
 168   Handle, Pointer, Open, NoCD, Exit,
 169   Zero, One, Two, Three, Four,
 170   Five, Six, Seven, Eight, Nine,
 171   Slider, Selector, Plug, Loop, Box, Bar,
 172   Flame, Wave, Stars, Star, Diamond, Size, FgColor, BgColor,
 173   Save, Reset, TrackSelect,
 174   NotASymbol
 175 };
 176
 177 /* State information */
 178
 179 extern SymbolID state;
 180 extern int track, frames;
 181 extern double trackProgress;
 182 extern char **playList;
 183 extern int playListLength, playListPosition;
 184 extern SymbolID fadeMode;
 185 extern bool pointsAreDiamonds;
 186 extern double brightnessTwiddler;
 187 extern double starSize;
 188 extern double fgRedSlider, fgGreenSlider, bgRedSlider, bgGreenSlider;
 189
 190 extern double volume;
 191
 192 void setStateToDefaults();
 193 void saveConfig();
 194
 195 void putString(char *string,int x,int y,int red,int blue);
 196
 197 /* sound */
 198 enum SoundSource { SourceLine, SourceCD, SourcePipe, SourceESD };
 199
 200 void cdOpen(char *cdromName);
 201 void cdClose(void);
 202 void cdGetStatus(int &track, int &frames, SymbolID &state);
 203 void cdPlay(int trackFrame, int endFrame=-1);
 204 void cdStop(void);
 205 void cdPause(void);
 206 void cdResume(void);
 207 void cdEject(void);
 208 void cdCloseTray(void);
 209 int cdGetTrackCount(void);
 210 int cdGetTrackFrame(int track);
 211 void openSound(SoundSource sound, int downFactor, char *dspName, char *mixerName);
 212 void closeSound();
 213 void setupMixer(double &loudness);
 214 void setVolume(double loudness);
 215 int getNextFragment(void);
 216