Part of the swftools package.
- Copyright (c) 2002 Matthias Kramm <kramm@quiss.org>
+ Copyright (c) 2002,2003 Matthias Kramm <kramm@quiss.org>
+
+ 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 */
- This file is distributed under the GPL, see file COPYING for details
-
-*/
-
#include <stdio.h>
#include <math.h>
#include <fcntl.h>
#define VERBOSE(x) (global.verbose>=x)
struct {
- int framerate;
+ float framerate;
int max_image_width;
int max_image_height;
int force_width;
int force_height;
int nfiles;
int verbose;
+ int do_cgi;
+ int version;
char *outfile;
+ float scale;
} global;
struct {
char *filename;
} image[MAX_INPUT_FILES];
-TAG *MovieStart(SWF * swf, int framerate, int dx, int dy)
+static int custom_move=0;
+static int move_x=0;
+static int move_y=0;
+static int clip_x1=0,clip_y1=0,clip_x2=0,clip_y2=0;
+static int custom_clip = 0;
+
+TAG *MovieStart(SWF * swf, float framerate, int dx, int dy)
{
TAG *t;
RGBA rgb;
memset(swf, 0x00, sizeof(SWF));
- swf->fileVersion = 4;
- swf->frameRate = (25600 / framerate);
- swf->movieSize.xmax = dx * 20;
- swf->movieSize.ymax = dy * 20;
+ swf->fileVersion = global.version;
+ swf->frameRate = (int)(256.0 * framerate);
+ if(custom_clip) {
+ swf->movieSize.xmin = clip_x1 * 20;
+ swf->movieSize.ymin = clip_y1 * 20;
+ swf->movieSize.xmax = clip_x2 * 20;
+ swf->movieSize.ymax = clip_y2 * 20;
+ } else {
+ swf->movieSize.xmax = dx * 20;
+ swf->movieSize.ymax = dy * 20;
+ }
t = swf->firstTag = swf_InsertTag(NULL, ST_SETBACKGROUNDCOLOR);
rgb.r = rgb.g = rgb.b = rgb.a = 0x00;
+ //rgb.g = 0xff; //<--- handy for testing alpha conversion
swf_SetRGB(t, &rgb);
return t;
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_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(global.version >= 6) {
+ if (swf_WriteSWC(f, swf)<0)
+ fprintf(stderr, "Unable to write output file: %s\n", sname);
+ } else {
+ if (swf_WriteSWF(f, swf)<0)
+ fprintf(stderr, "Unable to write output file: %s\n", sname);
+ }
+ 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;
c = data[10]; // compression mode (0)
f = data[11]; // filter mode (0)
i = data[12]; // interlace mode (0)
+
+ if(VERBOSE(2)) printf("image mode:%d\n", b);
+ if(VERBOSE(2)) printf("bpp: %d\n", a);
+ if(VERBOSE(2)) printf("compression: %d\n", c);
+ if(VERBOSE(2)) printf("filter: %d\n", f);
+ if(VERBOSE(2)) printf("interlace: %d\n", i);
- if(b!=2 && b!=3) {
+ if(b!=0 && b!=2 && b!=3 && b!=6) {
fprintf(stderr, "Image mode %d not supported!\n", b);
+ if(b == 4) {
+ fprintf(stderr, "(This is a grayscale image with alpha channel-\n");
+ fprintf(stderr, " try converting it into an RGB image with alpha channel)\n");
+ }
exit(1);
}
- if(a!=8 && b==2) {
+ if(a!=8 && (b==2 || b==6)) {
fprintf(stderr, "Bpp %d in mode %d not supported!\n", a);
exit(1);
}
else return c;
}
-void applyfilter(int mode, U8*src, U8*old, U8*dest, int width)
+void applyfilter3(int mode, U8*src, U8*old, U8*dest, int width)
{
int x;
unsigned char lastr=0;
}
+void applyfilter4(int mode, U8*src, U8*old, U8*dest, int width)
+{
+ int x;
+ unsigned char lastr=0;
+ unsigned char lastg=0;
+ unsigned char lastb=0;
+ unsigned char lasta=0; //TODO: 255?
+ unsigned char upperlastr=0;
+ unsigned char upperlastg=0;
+ unsigned char upperlastb=0;
+ unsigned char upperlasta=0; //TODO: 255?
+
+ if(mode==0) {
+ for(x=0;x<width;x++) {
+ dest[0] = src[3];
+ dest[1] = src[0];
+ dest[2] = src[1];
+ dest[3] = src[2];
+ dest+=4;
+ src+=4;
+ }
+ }
+ else if(mode==1) {
+ for(x=0;x<width;x++) {
+ dest[0] = src[3]+lasta;
+ dest[1] = src[0]+lastr;
+ dest[2] = src[1]+lastg;
+ dest[3] = src[2]+lastb;
+ lasta = dest[0];
+ lastr = dest[1];
+ lastg = dest[2];
+ lastb = dest[3];
+ dest+=4;
+ src+=4;
+ }
+ }
+ else if(mode==2) {
+ for(x=0;x<width;x++) {
+ dest[0] = src[3]+old[0];
+ dest[1] = src[0]+old[1];
+ dest[2] = src[1]+old[2];
+ dest[3] = src[2]+old[3];
+ dest+=4;
+ old+=4;
+ src+=4;
+ }
+ }
+ else if(mode==3) {
+ for(x=0;x<width;x++) {
+ dest[0] = src[3]+(old[0]+lasta)/2;
+ 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];
+ dest+=4;
+ old+=4;
+ src+=4;
+ }
+ }
+ else if(mode==4) {
+ for(x=0;x<width;x++) {
+ dest[0] = src[3]+PaethPredictor(lasta,old[0],upperlasta);
+ dest[1] = src[0]+PaethPredictor(lastr,old[1],upperlastr);
+ dest[2] = src[1]+PaethPredictor(lastg,old[2],upperlastg);
+ dest[3] = src[2]+PaethPredictor(lastb,old[3],upperlastb);
+ lasta = dest[0];
+ lastr = dest[1];
+ lastg = dest[2];
+ lastb = dest[3];
+ upperlasta = old[0];
+ upperlastr = old[1];
+ upperlastg = old[2];
+ upperlastb = old[3];
+ dest+=4;
+ old+=4;
+ src+=4;
+ }
+ }
+
+}
+
void applyfilter1(int mode, U8*src, U8*old, U8*dest, int width)
{
int x;
else if(mode==3) {
for(x=0;x<width;x++) {
*dest = *src+(*old+last)/2;
+ last = *dest;
dest++;
old++;
src++;
if(!png_read_header(fi, &header))
return 0;
- if(header.mode == 3) bypp = 1;
+ if(header.mode == 3 || header.mode == 0) bypp = 1;
else
if(header.mode == 2) bypp = 3;
else
+ if(header.mode == 6) bypp = 4;
+ else
return 0;
imagedatalen = bypp * header.width * header.height + 65536;
imagedata = malloc(imagedatalen);
t = swf_InsertTag(t, ST_DEFINEBITSLOSSLESS);
swf_SetU16(t, id); // id
- if(header.mode == 2) {
+ if(header.mode == 2 || header.mode == 6) {
U8*data2 = malloc(header.width*header.height*4);
int i,s=0;
int x,y;
int pos=0;
- /* 24->32 bit conversion */
+ int opaque=0;
+ int transparent=0;
+ int semitransparent=0;
+ /* in case for mode 2, the following also performs 24->32 bit conversion */
+ unsigned char* firstline = malloc(header.width*4);
+
for(y=0;y<header.height;y++) {
int mode = imagedata[pos++]; //filter mode
U8*src;
{
/* one byte per pixel */
src = &imagedata[pos];
- pos+=header.width*3;
+ pos+=header.width*(header.mode==6?4:3);
} else {
/* not implemented yet */
exit(1);
}
if(!y) {
- memset(data2,0,header.width*4);
- old = &data2[y*header.width*4];
+ old = firstline;
+ memset(old, 0, header.width*4); //TODO: fill alpha with 255?
} else {
old = &data2[(y-1)*header.width*4];
}
- applyfilter(mode, src, old, dest, header.width);
+ if(header.mode==6)
+ applyfilter4(mode, src, old, dest, header.width);
+ else if(header.mode==2)
+ applyfilter3(mode, src, old, dest, header.width);
+ }
+ free(firstline);
+
+ /* the image is now compressed and stored in data. Now let's take
+ a look at the alpha values */
+ if(header.mode == 6) {
+ for(y=0;y<header.height;y++) {
+ U8*l = &data2[(y*header.width)*4];
+ for(x=0;x<header.width;x++) {
+ U8 a = l[x*4];
+ U8 b = l[x*4+1];
+ U8 g = l[x*4+2];
+ U8 r = l[x*4+3];
+ if(a==255) transparent++;
+ else {
+ if(a==0) opaque++;
+ else semitransparent++;
+ l[x*4+3]=(int)r*a/255;
+ l[x*4+2]=(int)g*a/255;
+ l[x*4+1]=(int)b*a/255;
+ }
+ }
+ }
+ if(semitransparent || opaque) {
+ t->id = ST_DEFINEBITSLOSSLESS2;
+ }
}
swf_SetLosslessBits(t, header.width, header.height, data2, BMF_32BIT);
free(data2);
- }
- else {
- RGBA*rgba = (RGBA*)malloc(palettelen*sizeof(RGBA));
+ } else if(header.mode == 0 || header.mode == 3) {
+ RGBA*rgba;
int swf_width = BYTES_PER_SCANLINE(header.width);
U8*data2 = malloc(swf_width*header.height);
U8*tmpline = malloc(header.width);
int i,x,y;
int pos=0;
- if(!palette) {
- fprintf(stderr, "Error: No palette found!\n");
- exit(1);
- }
- /* 24->32 bit conversion */
- for(i=0;i<palettelen;i++) {
- rgba[i].r = palette[i*3+0];
- rgba[i].g = palette[i*3+1];
- rgba[i].b = palette[i*3+2];
- if(alphapalette && i<alphapalettelen) {
- rgba[i].a = alphapalette[i];
- if(alphapalette[i] == 0) {
- /* if the color is fully transparent, it doesn't matter
- what it's rgb values are. furthermore, all Flash
- players up to Flash 5 can't deal with anything beyond
- one transparent color with value (00,00,00,00). */
- rgba[i].r = rgba[i].g = rgba[i].b = 0;
+ if(header.mode == 3) { // palette or grayscale?
+ rgba = (RGBA*)malloc(palettelen*sizeof(RGBA));
+ if(!palette) {
+ fprintf(stderr, "Error: No palette found!\n");
+ exit(1);
+ }
+ /* 24->32 bit conversion */
+ for(i=0;i<palettelen;i++) {
+ rgba[i].r = palette[i*3+0];
+ rgba[i].g = palette[i*3+1];
+ rgba[i].b = palette[i*3+2];
+ if(alphapalette && i<alphapalettelen) {
+ rgba[i].a = alphapalette[i];
+ rgba[i].r = ((int)rgba[i].r*rgba[i].a)/255;
+ rgba[i].g = ((int)rgba[i].g*rgba[i].a)/255;
+ rgba[i].b = ((int)rgba[i].b*rgba[i].a)/255;
+ } else {
+ rgba[i].a = 255;
}
- } else {
- rgba[i].a = 255;
+ }
+ } else {
+ int mult = (0x1ff>>header.bpp);
+ palettelen = 1<<header.bpp;
+ rgba = (RGBA*)malloc(palettelen*sizeof(RGBA));
+ for(i=0;i<palettelen;i++) {
+ rgba[i].r = i*mult;
+ rgba[i].g = i*mult;
+ rgba[i].b = i*mult;
}
}
free(data2);
}
- t = swf_InsertTag(t, ST_DEFINESHAPE);
+ t = swf_InsertTag(t, ST_DEFINESHAPE3);
swf_ShapeNew(&s);
swf_GetMatrix(NULL, &m);
- m.sx = 20 * 0x10000;
- m.sy = 20 * 0x10000;
- fs = swf_ShapeAddBitmapFillStyle(s, &m, id, 0);
+ m.sx = (int)(20 * 0x10000);
+ m.sy = (int)(20 * 0x10000);
+ m.tx = -10;
+ m.ty = -10;
+ fs = swf_ShapeAddBitmapFillStyle(s, &m, id, 1);
swf_SetU16(t, id + 1); // id
swf_ShapeSetEnd(t);
t = swf_InsertTag(t, ST_REMOVEOBJECT2);
- swf_SetU16(t, 1); // depth
+ swf_SetU16(t, 50); // depth
t = swf_InsertTag(t, ST_PLACEOBJECT2);
swf_GetMatrix(NULL, &m);
- m.tx = (swf->movieSize.xmax - (int) header.width * 20) / 2;
- m.ty = (swf->movieSize.ymax - (int) header.height * 20) / 2;
- swf_ObjectPlace(t, id + 1, 1, &m, NULL, NULL);
+ m.sx = (int)(0x10000 * global.scale);
+ m.sy = (int)(0x10000 * global.scale);
+
+ if(custom_move) {
+ m.tx = move_x*20;
+ m.ty = move_y*20;
+ } else {
+ m.tx = (swf->movieSize.xmax - (int) (header.width * global.scale * 20)) / 2;
+ m.ty = (swf->movieSize.ymax - (int) (header.height * global.scale * 20)) / 2;
+ }
+ swf_ObjectPlace(t, id + 1, 50, &m, NULL, NULL);
t = swf_InsertTag(t, ST_SHOWFRAME);
sprintf(s, "%s.PNG", fname);
if ((fi = fopen(s, "rb")) == NULL) {
sprintf(s, "%s.Png", fname);
- if ((fi = fopen(s, "rb")) == NULL)
+ if ((fi = fopen(s, "rb")) == NULL) {
fprintf(stderr, "Couldn't open %s!\n", fname);
return -1;
+ }
}
}
}
switch (arg[0]) {
case 'r':
if (val)
- global.framerate = atoi(val);
- if ((global.framerate < 1) ||(global.framerate > 5000)) {
+ global.framerate = atof(val);
+ /* removed framerate>0 restriction in order to make
+ Flash Communication Server compatible SWFs */
+ if ((global.framerate < 0) ||(global.framerate >= 256.0)) {
if (VERBOSE(1))
fprintf(stderr,
- "Error: You must specify a valid framerate between 1 and 10000.\n");
+ "Error: You must specify a valid framerate between 1/256 and 255.\n");
exit(1);
}
res = 1;
res = 1;
break;
- case 'v':
- if (val)
- global.verbose = atoi(val);
+ case 's':
+ global.scale = atof(val)/100;
res = 1;
break;
+ case 'z':
+ global.version = 6;
+ res = 0;
+ break;
+
+ case 'T':
+ global.version = atoi(val);
+ res = 1;
+ break;
+
+ case 'C':
+ global.do_cgi = 1;
+ break;
+
+ case 'v':
+ global.verbose++;
+ res = 0;
+ break;
+
+ case 'q':
+ global.verbose--;
+ if(global.verbose<0)
+ global.verbose = 0;
+ res = 0;
+ break;
+
case 'X':
if (val)
global.force_width = atoi(val);
case 'V':
printf("png2swf - part of %s %s\n", PACKAGE, VERSION);
exit(0);
+
+ case 'c': {
+ char*s = strdup(val);
+ char*x1 = strtok(s, ":");
+ char*y1 = strtok(0, ":");
+ char*x2 = strtok(0, ":");
+ char*y2 = strtok(0, ":");
+ if(!(x1 && y1 && x2 && y2)) {
+ fprintf(stderr, "-m option requires four arguments, <x1>:<y1>:<x2>:<y2>\n");
+ exit(1);
+ }
+ custom_clip = 1;
+ clip_x1 = atoi(x1);
+ clip_y1 = atoi(y1);
+ clip_x2 = atoi(x2);
+ clip_y2 = atoi(y2);
+ free(s);
+
+ res = 1;
+ break;
+ }
+
+ case 'm': {
+ char*s = strdup(val);
+ char*c = strchr(s, ':');
+ if(!c) {
+ fprintf(stderr, "-m option requires two arguments, <x>:<y>\n");
+ exit(1);
+ }
+ *c = 0;
+ custom_move = 1;
+ move_x = atoi(val);
+ move_y = atoi(c+1);
+ free(s);
+
+ res = 1;
+ break;
+ }
default:
res = -1;
return res;
}
-struct options_t options[] =
-{
-{"o", "output"},
+static struct options_t options[] = {
{"r", "rate"},
+{"o", "output"},
+{"z", "zlib"},
+{"X", "pixel"},
+{"Y", "pixel"},
{"v", "verbose"},
-{"X", "width"},
-{"Y", "height"},
+{"q", "quiet"},
+{"C", "cgi"},
{"V", "version"},
+{0,0}
};
int args_callback_longoption(char *name, char *val)
void args_callback_usage(char *name)
{
- printf("Usage: %s [-options [value]] imagefiles[.png] [...]\n", name);
- printf("-r framerate (rate) Set movie framerate (100/sec)\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("\n");
+ printf("Usage: %s [-X width] [-Y height] [-o file.swf] [-r rate] file1.png [file2.png...]\n", name);
+ printf("\n");
+ printf("-r , --rate <framerate> Set movie framerate (frames per second)\n");
+ printf("-o , --output <filename> Set name for SWF output file.\n");
+ printf("-z , --zlib <zlib> Enable Flash 6 (MX) Zlib Compression\n");
+ printf("-X , --pixel <width> Force movie width to <width> (default: autodetect)\n");
+ printf("-Y , --pixel <height> Force movie height to <height> (default: autodetect)\n");
+ printf("-v , --verbose Be verbose. Use more than one -v for greater effect \n");
+ printf("-q , --quiet Omit normal log messages, only log errors\n");
+ printf("-C , --cgi For use as CGI- prepend http header, write to stdout\n");
+ printf("-V , --version Print version information and exit\n");
+ printf("\n");
}
-
int main(int argc, char **argv)
{
SWF swf;
memset(&global, 0x00, sizeof(global));
- global.framerate = 100;
+ global.framerate = 1.0;
global.verbose = 1;
+ global.version = 4;
+ global.scale = 1.0;
processargs(argc, argv);
-
- if(global.nfiles<=0)
+
+ if(global.nfiles<=0) {
+ fprintf(stderr, "No png files found in arguments\n");
return 1;
+ }
if (VERBOSE(2))
fprintf(stderr, "Processing %i file(s)...\n", global.nfiles);
t = MovieStart(&swf, global.framerate,
- global.force_width ? global.force_width : global.
- max_image_width,
- global.force_height ? global.force_height : global.
- max_image_height);
+ global.force_width ? global.force_width : (int)(global.max_image_width*global.scale),
+ global.force_height ? global.force_height : (int)(global.max_image_height*global.scale));
{
int i;