int max_image_height;
int force_width;
int force_height;
- int prescale;
int nfiles;
int verbose;
char *outfile;
struct {
char *filename;
- int scale;
} image[MAX_INPUT_FILES];
TAG *MovieStart(SWF * swf, int framerate, int dx, int dy)
if(!fread(head, 4, 1, fi))
return 0;
len = REVERSESWAP32(len);
- printf("id: %.4s len: %d\n", head, len);
if(destlen) *destlen = len;
if(destdata) {
if(len)
{
char id[4];
int len;
+ int ok=0;
U8 head[8] = {137,80,78,71,13,10,26,10};
U8 head2[8];
U8*data;
while(png_read_chunk(&id, &len, &data, fi))
{
- printf("%c%c%c%c %d\n", id[0],id[1],id[2],id[3],len);
+ if(VERBOSE(2))
+ printf("%c%c%c%c %d\n", id[0],id[1],id[2],id[3],len);
if(!strncasecmp(id, "IHDR", 4)) {
char a,b,c,f,i;
if(len < 8) exit(1);
c = data[10]; // compression mode (0)
f = data[11]; // filter mode (0)
i = data[12]; // interlace mode (0)
- printf("%08xx%08x %d %d %d %d %d\n",header->width, header->height, a,b,c,f,i);
+
+ if(b!=2 && b!=3 && b!=6) {
+ fprintf(stderr, "Image mode %d not supported!\n", b);
+ exit(1);
+ }
+ if(a!=8 && (b==2 || b==6)) {
+ fprintf(stderr, "Bpp %d in mode %d not supported!\n", a);
+ exit(1);
+ }
+ if(c!=0) {
+ fprintf(stderr, "Compression mode %d not supported!\n", c);
+ exit(1);
+ }
+ if(f!=0) {
+ fprintf(stderr, "Filter mode %d not supported!\n", f);
+ exit(1);
+ }
+ if(i!=0) {
+ fprintf(stderr, "Interlace mode %d not supported!\n", i);
+ exit(1);
+ }
+ if(VERBOSE(2))
+ printf("%dx%d %d %d %d %d %d\n",header->width, header->height, a,b,c,f,i);
header->bpp = a;
header->mode = b;
- return 1;
- } else {
- fseek(fi, len, SEEK_CUR);
- }
+ ok = 1;
+ }
+
free(data);
}
- return 0;
+ return ok;
+}
+
+typedef unsigned char byte;
+#define ABS(a) ((a)>0?(a):(-(a)))
+byte inline PaethPredictor (byte a,byte b,byte c)
+{
+ // a = left, b = above, c = upper left
+ int p = a + b - c; // initial estimate
+ int pa = ABS(p - a); // distances to a, b, c
+ int pb = ABS(p - b);
+ int pc = ABS(p - c);
+ // return nearest of a,b,c,
+ // breaking ties in order a,b,c.
+ if (pa <= pb && pa <= pc)
+ return a;
+ else if (pb <= pc)
+ return b;
+ else return c;
}
-TAG *MovieAddFrame(SWF * swf, TAG * t, char *sname, int scale,
- int id)
+void applyfilter3(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 upperlastr=0;
+ unsigned char upperlastg=0;
+ unsigned char upperlastb=0;
+
+ if(mode==0) {
+ for(x=0;x<width;x++) {
+ dest[0] = 255;
+ dest[1] = src[0];
+ dest[2] = src[1];
+ dest[3] = src[2];
+ dest+=4;
+ src+=3;
+ }
+ }
+ else if(mode==1) {
+ for(x=0;x<width;x++) {
+ dest[0] = 255;
+ dest[1] = src[0]+lastr;
+ dest[2] = src[1]+lastg;
+ dest[3] = src[2]+lastb;
+ lastr = dest[1];
+ lastg = dest[2];
+ lastb = dest[3];
+ dest+=4;
+ src+=3;
+ }
+ }
+ else if(mode==2) {
+ for(x=0;x<width;x++) {
+ dest[0] = 255;
+ dest[1] = src[0]+old[1];
+ dest[2] = src[1]+old[2];
+ dest[3] = src[2]+old[3];
+ dest+=4;
+ old+=4;
+ src+=3;
+ }
+ }
+ else if(mode==3) {
+ for(x=0;x<width;x++) {
+ dest[0] = 255;
+ dest[1] = src[0]+(old[1]+lastr)/2;
+ dest[2] = src[1]+(old[2]+lastg)/2;
+ dest[3] = src[2]+(old[3]+lastb)/2;
+ lastr = dest[1];
+ lastg = dest[2];
+ lastb = dest[3];
+ dest+=4;
+ old+=4;
+ src+=3;
+ }
+ }
+ else if(mode==4) {
+ for(x=0;x<width;x++) {
+ dest[0] = 255;
+ 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);
+ lastr = dest[1];
+ lastg = dest[2];
+ lastb = dest[3];
+ upperlastr = old[1];
+ upperlastg = old[2];
+ upperlastb = old[3];
+ dest+=4;
+ old+=4;
+ src+=3;
+ }
+ }
+
+}
+
+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;
+ unsigned char upperlastr=0;
+ unsigned char upperlastg=0;
+ unsigned char upperlastb=0;
+ unsigned char upperlasta=0;
+
+ 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;
+ 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];
+ upperlastr = 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;
+ unsigned char last=0;
+ unsigned char upperlast=0;
+
+ if(mode==0) {
+ for(x=0;x<width;x++) {
+ *dest = *src;
+ dest++;
+ src++;
+ }
+ }
+ else if(mode==1) {
+ for(x=0;x<width;x++) {
+ *dest = *src+last;
+ last = *dest;
+ dest++;
+ src++;
+ }
+ }
+ else if(mode==2) {
+ for(x=0;x<width;x++) {
+ *dest = *src+*old;
+ dest++;
+ old++;
+ src++;
+ }
+ }
+ else if(mode==3) {
+ for(x=0;x<width;x++) {
+ *dest = *src+(*old+last)/2;
+ dest++;
+ old++;
+ src++;
+ }
+ }
+ else if(mode==4) {
+ for(x=0;x<width;x++) {
+ *dest = *src+PaethPredictor(last,*old,upperlast);
+ last = *dest;
+ upperlast = *old;
+ dest++;
+ old++;
+ src++;
+ }
+ }
+
+}
+
+TAG *MovieAddFrame(SWF * swf, TAG * t, char *sname, int id)
{
SHAPE *s;
SRECT r;
int len;
U8*data;
U8*imagedata;
+ U8*zimagedata=0;
unsigned long int imagedatalen;
- U8*palette;
- int palettelen;
+ unsigned long int zimagedatalen=0;
+ U8*palette = 0;
+ int palettelen = 0;
+ U8*alphapalette = 0;
+ int alphapalettelen = 0;
struct png_header header;
int bypp;
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);
if(!strncmp(tagid, "PLTE", 4)) {
palette = data;
palettelen = len/3;
- data = 0;
- printf("%d palette\n", len);
+ data = 0; //don't free data
+ if(VERBOSE(2))
+ printf("%d colors in palette\n", palettelen);
+ }
+ if(!strncmp(tagid, "tRNS", 4)) {
+ if(header.mode == 3) {
+ alphapalette = data;
+ alphapalettelen = len;
+ data = 0; //don't free data
+ if(VERBOSE(2))
+ printf("found %d alpha colors\n", alphapalettelen);
+ }
}
if(!strncmp(tagid, "IDAT", 4)) {
- if(uncompress(imagedata, &imagedatalen, data, len) != Z_OK) {
- fprintf(stderr, "Couldn't uncompress %s!\n", sname);
- return 0;
+ if(!zimagedata) {
+ zimagedatalen = len;
+ zimagedata = malloc(len);
+ memcpy(zimagedata,data,len);
+ } else {
+ zimagedata = realloc(zimagedata, zimagedatalen+len);
+ memcpy(&zimagedata[zimagedatalen], data, len);
+ zimagedatalen += len;
}
- printf("IDAT %d -> %d\n", len, imagedatalen);
}
if(data)
free(data);
}
+
+ if(!zimagedata || uncompress(imagedata, &imagedatalen, zimagedata, zimagedatalen) != Z_OK) {
+ fprintf(stderr, "Couldn't uncompress %s!\n", sname);
+ if(zimagedata)
+ free(zimagedata);
+ return 0;
+ }
+ free(zimagedata);
+
+ if(alphapalette)
+ t = swf_InsertTag(t, ST_DEFINEBITSLOSSLESS2);
+ else
+ t = swf_InsertTag(t, ST_DEFINEBITSLOSSLESS);
- 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 */
+ /* in case for mode 2, the following also performs 24->32 bit conversion */
for(y=0;y<header.height;y++) {
- pos++; // filter mode
- for(x=0;x<header.width;x++) {
- U8*src = &imagedata[pos];
- U8*dest = &data2[(y*header.width+x)*4];
- dest[0] = 255;
- dest[1] = src[0];
- dest[2] = src[1];
- dest[3] = src[2];
- pos+=3;
+ int mode = imagedata[pos++]; //filter mode
+ U8*src;
+ U8*dest;
+ U8*old;
+ dest = &data2[(y*header.width)*4];
+
+ if(header.bpp == 8)
+ {
+ /* one byte per pixel */
+ src = &imagedata[pos];
+ 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];
+ } else {
+ old = &data2[(y-1)*header.width*4];
}
+ if(header.mode==6)
+ applyfilter4(mode, src, old, dest, header.width);
+ else
+ applyfilter3(mode, src, old, dest, header.width);
}
swf_SetLosslessBits(t, header.width, header.height, data2, BMF_32BIT);
free(data2);
}
else {
RGBA*rgba = (RGBA*)malloc(palettelen*sizeof(RGBA));
- U8*data2 = malloc((header.width+4)*header.height);
+ 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];
- rgba[i].a = 255;
+ 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;
+ }
+ } else {
+ rgba[i].a = 255;
+ }
}
+
for(y=0;y<header.height;y++) {
- pos++; //filter mode
- for(x=0;x<header.width;x++) {
- data2[y*header.width+x] =
- imagedata[pos++];
+ int mode = imagedata[pos++]; //filter mode
+ U8*old;
+ U8*dest = &data2[y*swf_width];
+ U8*src;
+ src = &imagedata[pos];
+ if(header.bpp == 8) {
+ pos+=header.width;
+ } else {
+ int x,s=0;
+ int bitpos = 0;
+ U32 v = (1<<header.bpp)-1;
+ for(x=0;x<header.width;x++) {
+ U32 r = src[s/8]<<8 |
+ src[s/8+1];
+ int t;
+ tmpline[x] = (r>>(16-header.bpp-(s&7)))&v;
+ s+=header.bpp;
+ }
+ src = tmpline;
+ pos+=(header.width*header.bpp+7)/8;
}
+
+ if(!y) {
+ memset(data2,0,swf_width);
+ old = &data2[y*swf_width];
+ } else {
+ old = &data2[(y-1)*swf_width];
+ }
+ applyfilter1(mode, src, old, dest, header.width);
}
swf_SetLosslessBitsIndexed(t, header.width, header.height, data2, rgba, palettelen);
+ free(tmpline);
free(rgba);
free(data2);
}
fprintf(stderr, "%s is not a PNG file!\n", fname);
return -1;
}
- if(head.mode!=2 && head.mode!=3) {
- fprintf(stderr, "%s has unsupported mode %d\n", head.mode);
- return -1;
- }
- if(head.bpp!=8) {
- fprintf(stderr, "%s has unsupported bpp %d\n", head.bpp);
- return -1;
- }
if (global.max_image_width < head.width)
global.max_image_width = head.width;
{"X", "width"},
{"Y", "height"},
{"V", "version"},
-{"s", "scale"}
};
int args_callback_longoption(char *name, char *val)
int args_callback_command(char *arg, char *next) // actually used as filename
{
char *s;
- int scale;
if (CheckInputFile(arg, &s) < 0) {
if (VERBOSE(1))
fprintf(stderr, "Error opening input file: %s\n", arg);
free(s);
} else {
image[global.nfiles].filename = s;
- image[global.nfiles].scale = global.prescale;
global.nfiles++;
if (global.nfiles >= MAX_INPUT_FILES) {
if (VERBOSE(1))
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 scale (default: autodetect)\n");
- printf("-Y pixel (height) Force movie height to scale (default: autodetect)\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("The following options can be set independently for each image: -q -s\n");
}
global.framerate = 100;
global.verbose = 1;
- global.prescale = 1;
processargs(argc, argv);
+ if(global.nfiles<=0)
+ return 1;
+
if (VERBOSE(2))
fprintf(stderr, "Processing %i file(s)...\n", global.nfiles);
int i;
for (i = 0; i < global.nfiles; i++) {
if (VERBOSE(3))
- fprintf(stderr, "[%03i] %s (1/%i)\n", i,
- image[i].filename,
- image[i].scale);
- t = MovieAddFrame(&swf, t, image[i].filename,
- image[i].scale, (i * 2) + 1);
+ fprintf(stderr, "[%03i] %s\n", i,
+ image[i].filename);
+ t = MovieAddFrame(&swf, t, image[i].filename, (i * 2) + 1);
free(image[i].filename);
}
}
git.asbjorn.biz / swftools.git / blobdiff