Copyright (c) 2000, 2001 Rainer Böhme <rfxswf@reflex-studio.de>
- This file is distributed under the GPL, see file COPYING for details
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-*/
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#define OUTBUFFER_SIZE 0x8000
swf_SetJPEGBitsFinish(jpeg);
}
+void swf_GetJPEGSize(char * fname, int*width, int*height)
+{ struct jpeg_decompress_struct cinfo;
+ struct jpeg_error_mgr jerr;
+ FILE * fi;
+ *width = 0;
+ *height = 0;
+ cinfo.err = jpeg_std_error(&jerr);
+ jpeg_create_decompress(&cinfo);
+ if ((fi=fopen(fname,"rb"))==NULL) {
+ fprintf(stderr, "rfxswf: file open error\n");
+ return;
+ }
+ jpeg_stdio_src(&cinfo, fi);
+ jpeg_read_header(&cinfo, TRUE);
+ *width = cinfo.image_width;
+ *height = cinfo.image_height;
+ jpeg_destroy_decompress(&cinfo);
+ fclose(fi);
+}
+
int swf_SetJPEGBits(TAG * t,char * fname,int quality)
{ struct jpeg_decompress_struct cinfo;
struct jpeg_error_mgr jerr;
int y = js[x*3+0];
int u = js[x*3+1];
int v = js[x*3+1];
- // untested:
js[x*3+0] = y + ((360*(v-128))>>8);
- js[x*3+1] = y - ((88*(u-128)-183*(v-128))>>8);
+ js[x*3+1] = y - ((88*(u-128)+183*(v-128))>>8);
js[x*3+2] = y + ((455 * (u-128))>>8);
}
}
#ifdef HAVE_ZLIB
-int RFXSWF_deflate_wraper(TAG * t,z_stream * zs,U8 * data,boolean finish)
-{ while (1)
- { int status = deflate(zs,Z_SYNC_FLUSH);
+int RFXSWF_deflate_wraper(TAG * t,z_stream * zs,boolean finish)
+{
+ U8*data=malloc(OUTBUFFER_SIZE);
+ zs->next_out = data;
+ zs->avail_out = OUTBUFFER_SIZE;
+ while (1)
+ { int status = deflate(zs,Z_NO_FLUSH);
+
+ if (status!=Z_OK)
+ {
+#ifdef DEBUG_RFXSWF
+ fprintf(stderr,"rfxswf: zlib compression error (%i)\n",status);
+#endif
+ free(data);
+ return status;
+ }
- if (zs->avail_out == 0)
- { swf_SetBlock(t,data,zs->next_out-data);
+ if (zs->next_out!=data)
+ { swf_SetBlock(t,data,zs->next_out - data);
zs->next_out = data;
zs->avail_out = OUTBUFFER_SIZE;
}
if (zs->avail_in==0)
- { if (finish) deflate(zs,Z_FINISH);
break;
- }
+ }
- if (status!=Z_OK)
+ if(!finish) {
+ free(data);
+ return 0;
+ }
+
+ while(1) {
+ int status = deflate(zs,Z_FINISH);
+ if (status!=Z_OK && status!=Z_STREAM_END)
{
#ifdef DEBUG_RFXSWF
fprintf(stderr,"rfxswf: zlib compression error (%i)\n",status);
#endif
+ free(data);
return status;
}
+
+ if (zs->next_out!=data)
+ {
+ swf_SetBlock(t,data,zs->next_out - data);
+ zs->next_out = data;
+ zs->avail_out = OUTBUFFER_SIZE;
+ }
+
+ if(status == Z_STREAM_END)
+ break;
}
+ free(data);
return 0;
}
int swf_SetLosslessBits(TAG * t,U16 width,U16 height,void * bitmap,U8 bitmap_flags)
{ int res = 0;
int bps;
- U8 * data;
switch (bitmap_flags)
{ case BMF_8BIT:
fprintf(stderr, "rfxswf: unknown bitmap type %d\n", bitmap_flags);
return -1;
}
-
+
swf_SetU8(t,bitmap_flags);
swf_SetU16(t,width);
swf_SetU16(t,height);
- if ((data=malloc(OUTBUFFER_SIZE)))
{ z_stream zs;
memset(&zs,0x00,sizeof(z_stream));
if (deflateInit(&zs,Z_DEFAULT_COMPRESSION)==Z_OK)
{ zs.avail_in = bps*height;
zs.next_in = bitmap;
- zs.next_out = data;
- zs.avail_out = OUTBUFFER_SIZE;
-
- if (RFXSWF_deflate_wraper(t,&zs,data,TRUE)<0) res = -3;
- if (zs.next_out>data) swf_SetBlock(t,data,zs.next_out-data);
+ if (RFXSWF_deflate_wraper(t,&zs,TRUE)<0) res = -3;
deflateEnd(&zs);
} else res = -3; // zlib error
- free(data);
- } else res = -2; // memory error
+ }
+
+ while(t->len < 64) { /* actually, 63 and above is o.k., but let's stay on the safe side */
+
+ /* Flash players up to MX crash or do strange things if they encounter a
+ DefineLossless Tag with a payload of less than 63 bytes. They also
+ substitute the whole bitmap by a red rectangle.
+
+ This loop fills up the tag with zeroes so that this doesn't happen.
+ */
+ swf_SetU8(t, 0);
+ }
return res;
}
int swf_SetLosslessBitsIndexed(TAG * t,U16 width,U16 height,U8 * bitmap,RGBA * palette,U16 ncolors)
{ RGBA * pal = palette;
int bps = BYTES_PER_SCANLINE(width);
- U8 * data;
int res = 0;
if (!pal) // create default palette for grayscale images
swf_SetU16(t,height);
swf_SetU8(t,ncolors-1); // number of pal entries
- if ((data=malloc(OUTBUFFER_SIZE)))
{ z_stream zs;
memset(&zs,0x00,sizeof(z_stream));
}
zs.next_in = zpal;
- zs.next_out = data;
- zs.avail_out = OUTBUFFER_SIZE;
- if (RFXSWF_deflate_wraper(t,&zs,data,FALSE)<0) res = -3;
+ if (RFXSWF_deflate_wraper(t,&zs,FALSE)<0) res = -3;
// compress bitmap
zs.next_in = bitmap;
zs.avail_in = (bps*height*sizeof(U8));
- if (RFXSWF_deflate_wraper(t,&zs,data,TRUE)<0) res = -3;
+ if (RFXSWF_deflate_wraper(t,&zs,TRUE)<0) res = -3;
deflateEnd(&zs);
- if (zs.next_out>data) swf_SetBlock(t,data,zs.next_out-data);
-
free(zpal);
} else res = -2; // memory error
} else res = -3; // zlib error
- free(data);
- } else res = -2;
+ }
if (!palette) free(pal);
+ while(t->len < 64) { /* actually, 63 and above is o.k., but let's stay on the safe side */
+
+ /* Flash players up to MX crash or do strange things if they encounter a
+ DefineLossless(2) Tag with a payload of less than 63 bytes. They also
+ substitute the whole bitmap by a red rectangle.
+
+ This loop fills up the tag with zeroes so that this doesn't happen.
+ */
+ swf_SetU8(t, 0);
+ }
+
return res;
}
git.asbjorn.biz / swftools.git / blobdiff