X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=blobdiff_plain;f=src%2Fpng2swf.c;h=5b9a262894fce38151e4fa417cfaa0c6aa49f9b1;hp=953dee860f8d2d671b222a08168f18d80e355f82;hb=88f0dff63924cecbca1ad201958108d88e06141c;hpb=5480f1eae83c641a75b225db52bbfc1fcb62e6b6

diff --git a/src/png2swf.c b/src/png2swf.c
index 953dee8..5b9a262 100644
--- a/src/png2swf.c
+++ b/src/png2swf.c
@@ -38,6 +38,7 @@ struct {
     int force_height;
     int nfiles;
     int verbose;
+    int do_cgi;
     char *outfile;
 } global;
 
@@ -68,21 +69,24 @@ TAG *MovieStart(SWF * swf, float framerate, int dx, int dy)
 
 int MovieFinish(SWF * swf, TAG * t, char *sname)
 {
-    int handle, so = fileno(stdout);
+    int f, so = fileno(stdout);
     t = swf_InsertTag(t, ST_END);
 
     if ((!isatty(so)) && (!sname))
-	handle = so;
+	f = so;
     else {
 	if (!sname)
 	    sname = "output.swf";
-	handle = open(sname, O_BINARY | O_RDWR | O_CREAT | O_TRUNC, 0666);
+	f = open(sname,O_WRONLY|O_CREAT|O_TRUNC|O_BINARY, 0644);
+    }
+
+    if(global.do_cgi) {
+	if FAILED(swf_WriteCGI(swf)) fprintf(stderr,"WriteCGI() failed.\n");
+    } else {
+	if FAILED(swf_WriteSWF(f,swf)) fprintf(stderr,"WriteSWF() failed.\n");
+	if (f != so)
+	    close(f);
     }
-    if FAILED
-	(swf_WriteSWF(handle, swf)) if (VERBOSE(1))
-	    fprintf(stderr, "Unable to write output file: %s\n", sname);
-    if (handle != so)
-	close(handle);
 
     swf_FreeTags(swf);
     return 0;
@@ -351,6 +355,7 @@ void applyfilter4(int mode, U8*src, U8*old, U8*dest, int width)
 	    dest[1] = src[0]+(old[1]+lastr)/2;
 	    dest[2] = src[1]+(old[2]+lastg)/2;
 	    dest[3] = src[2]+(old[3]+lastb)/2;
+	    lasta = dest[0];
 	    lastr = dest[1];
 	    lastg = dest[2];
 	    lastb = dest[3];
@@ -534,6 +539,7 @@ TAG *MovieAddFrame(SWF * swf, TAG * t, char *sname, int id)
 	int pos=0;
 	int opaque=0;
 	int transparent=0;
+	int semitransparent=0;
 	/* in case for mode 2, the following also performs 24->32 bit conversion */
 	for(y=0;y<header.height;y++) {
 	    int mode = imagedata[pos++]; //filter mode
@@ -564,7 +570,6 @@ TAG *MovieAddFrame(SWF * swf, TAG * t, char *sname, int id)
 		applyfilter3(mode, src, old, dest, header.width);
 	}
 
-#ifdef HAVE_LIBJPEG
 	/* the image is now compressed and stored in data. Now let's take
 	   a look at the alpha values to determine which bitmap type we
 	   should write */
@@ -573,15 +578,21 @@ TAG *MovieAddFrame(SWF * swf, TAG * t, char *sname, int id)
 	    U8*l = &data2[(y*header.width)*4];
 	    for(x=0;x<header.width;x++) {
 		if(l[x*4+0]==255) transparent++;
-		if(l[x*4+0]==0) opaque++;
+		else if(l[x*4+0]==0) opaque++;
+		else semitransparent++;
 	    }
 	}
 	/* mode 6 images which are not fully opaque or fully transparent
 	   will be stored as definejpeg3 */
 	if(header.mode == 6 && transparent != header.width*header.height
-		            && opaque != header.width*header.height) {
-	   
-	    printf("Image has transparency information. Storing as DefineBitsJpeg3 Tag (jpeg+alpha)\n");
+		            && opaque != header.width*header.height)
+#ifndef HAVE_JPEGLIB
+	    fprintf(stderr, "Warning: No jpeg lib compiled in- not able to store transparency information\n");
+#else
+	{   
+	    fprintf(stderr, "Image has transparency information. Storing as DefineBitsJpeg3 Tag (jpeg+alpha)\n");
+	    if(VERBOSE(2))
+		printf("Image is semi-transparent\n");
 
 	    // we always use quality 100, since png2swf is expected to
 	    // use more or less lossless compression
@@ -782,6 +793,10 @@ int args_callback_option(char *arg, char *val)
 	    res = 1;
 	    break;
 
+	case 'C':
+	    global.do_cgi = 1;
+	    break;
+
 	case 'v':
 	    if (val)
 		global.verbose = atoi(val);
@@ -823,6 +838,7 @@ struct options_t options[] =
 {"h", "help"},
 {"o", "output"},
 {"r", "rate"},
+{"C", "cgi"},
 {"v", "verbose"},
 {"X", "width"},
 {"Y", "height"},
@@ -857,15 +873,15 @@ int args_callback_command(char *arg, char *next)	// actually used as filename
 void args_callback_usage(char *name)
 {
     printf("Usage: %s  [-options [value]] imagefiles[.png] [...]\n", name);
-    printf("-r framerate          (rate) Set movie framerate (frames per second)\n");
-    printf("-o outputfile         (output) Set name for SWF output file\n");
-    printf("-X pixel              (width) Force movie width to pixel (default: autodetect)\n");
-    printf("-Y pixel              (height) Force movie height to pixel (default: autodetect)\n");
-    printf("-v level              (verbose) Set verbose level (0=quiet, 1=default, 2=debug)\n");
-    printf("-V                    (version) Print version information and exit\n");
+    printf("\t-r , --rate <framerate>\t\t\tSet movie framerate (frames per second)\n");
+    printf("\t-o , --output <filename>\t\t\tSet name for SWF output file\n");
+    printf("\t-X , --pixel <width>\t\t\tForce movie width to pixel (default: autodetect)\n");
+    printf("\t-Y , --pixel <height>\t\t\tForce movie height to pixel (default: autodetect)\n");
+    printf("\t-v , --verbose <level>\t\t\t Set verbose level (0=quiet, 1=default, 2=debug)\n");
+    printf("\t-C , --cgi\t\t\t For use as CGI- prepend http header, write to stdout\n");
+    printf("\t-V , --version\t\t\tPrint version information and exit\n");
 }
 
-
 int main(int argc, char **argv)
 {
     SWF swf;