lib/example/jpegtest.c

   1 /* jpegtest.c
   2
   3    Example for including and mapping jpeg images to swf shapes
   4
   5    Part of the swftools package.
   6
   7    Copyright (c) 2000, 2001 Rainer Böhme <rfxswf@reflex-studio.de>
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
  22
  23 #include <stdio.h>
  24 #include <fcntl.h>
  25 #include <math.h>
  26 #include "../rfxswf.h"
  27
  28 #define WIDTH           256
  29 #define HEIGHT          256
  30 #define QUALITY         85
  31
  32 #define ID_BITS         1
  33 #define ID_SHAPE        2
  34
  35 int main( int argc, char ** argv)
  36 { SWF swf;
  37   TAG* t;
  38   RGBA rgb;
  39   SHAPE* s;
  40   MATRIX m;
  41   SRECT r;
  42   JPEGBITS* jpeg;
  43
  44   int f; // file handle
  45
  46   int ls; // line style
  47   int fs; // fill style
  48   int frame;
  49
  50   memset(&swf,0x00,sizeof(SWF));
  51
  52   swf.fileVersion       = 4;
  53   swf.frameRate         = 0x1800;
  54   swf.movieSize.xmax    = 20*WIDTH;
  55   swf.movieSize.ymax    = 20*HEIGHT;
  56
  57   swf.firstTag = swf_InsertTag(NULL,ST_SETBACKGROUNDCOLOR);
  58   t = swf.firstTag;
  59
  60     rgb.r = 0xff;
  61     rgb.b = 0xff;
  62     rgb.g = 0xff;
  63     swf_SetRGB(t,&rgb);
  64
  65   t = swf_InsertTag(t,ST_DEFINEBITSJPEG2);
  66
  67     swf_SetU16(t,ID_BITS);
  68 //    swf_SetJPEGBits(t,"test.jpg",QUALITY);  <- use this to include an image from disk
  69
  70 //  That's the way to use memory bitmaps (24bit,RGB)
  71
  72     jpeg = swf_SetJPEGBitsStart(t,WIDTH,HEIGHT,QUALITY);
  73     { int y;
  74       for (y=0;y<HEIGHT;y++)
  75       { U8 scanline[3*WIDTH];
  76         int x,p = 0;
  77         for (x=0;x<WIDTH;x++)
  78         { scanline[p++] = x;    // R
  79           scanline[p++] = y;    // G
  80           scanline[p++] = 0x80; // B
  81         }
  82         swf_SetJPEGBitsLine(jpeg,scanline);
  83       }
  84     }
  85     swf_SetJPEGBitsFinish(jpeg);
  86
  87 // do some rotation animation
  88
  89     for (frame=0;frame<64;frame++)
  90     {
  91       t = swf_InsertTag(t,ST_DEFINESHAPE);
  92
  93           swf_ShapeNew(&s);
  94
  95           rgb.b = rgb.g = rgb.r = 0x00;
  96           ls = swf_ShapeAddLineStyle(s,40,&rgb);
  97
  98           swf_GetMatrix(NULL,&m);
  99
 100           m.sy = m.sx = (int)(cos(((float)(frame))/32*3.141)*0x80000);
 101           m.r0 = (int)(sin(((float)(frame))/32*3.141)*0x80000);
 102           m.r1 = -m.r0;
 103
 104           fs = swf_ShapeAddBitmapFillStyle(s,&m,ID_BITS,0);
 105
 106           swf_SetU16(t,ID_SHAPE+frame);   // ID
 107
 108           r.xmin = 0;
 109           r.ymin = 0;
 110           r.xmax = 10*WIDTH;
 111           r.ymax = 10*HEIGHT;
 112
 113           swf_SetRect(t,&r);
 114
 115           swf_SetShapeHeader(t,s);
 116
 117           swf_ShapeSetAll(t,s,0,0,ls,fs,0);
 118
 119           swf_ShapeSetLine(t,s,10*WIDTH,0);
 120           swf_ShapeSetLine(t,s,-10*WIDTH,10*HEIGHT);
 121 //    swf_ShapeSetLine(t,s,-10*WIDTH,-10*WIDTH);
 122           swf_ShapeSetLine(t,s,0,-10*HEIGHT);
 123           swf_ShapeSetEnd(t);
 124
 125           swf_ShapeFree(s);
 126
 127       if (frame)
 128       { t = swf_InsertTag(t,ST_REMOVEOBJECT2); swf_SetU16(t,1);
 129         t = swf_InsertTag(t,ST_REMOVEOBJECT2); swf_SetU16(t,2);
 130       }
 131
 132       t = swf_InsertTag(t,ST_PLACEOBJECT2);
 133           swf_ObjectPlace(t,ID_SHAPE+frame,1,NULL,NULL,NULL);
 134
 135       t = swf_InsertTag(t,ST_PLACEOBJECT2);
 136           swf_GetMatrix(NULL,&m); // get default matrix with no transformation
 137
 138           m.tx = m.ty = 10*WIDTH+frame*10;
 139           m.sx = m.sy = 0xfffeffff;
 140           swf_ObjectPlace(t,ID_SHAPE+frame,2,&m,NULL,NULL);
 141
 142
 143       t = swf_InsertTag(t,ST_SHOWFRAME);
 144
 145     } // frame loop
 146
 147   t = swf_InsertTag(t,ST_END);
 148
 149 //  swf_WriteCGI(&swf);
 150
 151   f = open("jpegtest.swf",O_WRONLY|O_CREAT||O_BINARY, 0644);
 152   if FAILED(swf_WriteSWF(f,&swf)) fprintf(stderr,"WriteSWF() failed.\n");
 153   close(f);
 154
 155   swf_FreeTags(&swf); // cleanup
 156
 157   return 0;
 158 }