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>
memset(swf, 0x00, sizeof(SWF));
- swf->fileVersion = 4;
+ swf->fileVersion = 5;
swf->frameRate = (25600 / framerate);
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;
else {
if (!sname)
sname = "output.swf";
- handle = open(sname, O_RDWR | O_CREAT | O_TRUNC, 0666);
+ handle = open(sname, O_BINARY | O_RDWR | O_CREAT | O_TRUNC, 0666);
}
if FAILED
(swf_WriteSWF(handle, swf)) if (VERBOSE(1))
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;
+ 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];
+ 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;
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;
+ /* 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
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);
} 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);
+ }
+
+#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 */
+ 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++) {
+ if(l[x*4+0]==255) transparent++;
+ if(l[x*4+0]==0) opaque++;
+ }
+ }
+ /* 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");
+
+ // we always use quality 100, since png2swf is expected to
+ // use more or less lossless compression
+
+ swf_SetJPEGBits3(t, header.width, header.height, (RGBA*)data2, 100);
+ t->id = ST_DEFINEBITSJPEG3;
+ }
+ else
+#endif
+ {
+ swf_SetLosslessBits(t, header.width, header.height, data2, BMF_32BIT);
}
- 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];
+ 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;
}
- } else {
- rgba[i].a = 255;
+ }
+ } else {
+ palettelen = 256;
+ rgba = (RGBA*)malloc(palettelen*sizeof(RGBA));
+ for(i=0;i<256;i++) {
+ rgba[i].r = i;
+ rgba[i].g = i;
+ rgba[i].b = i;
}
}
free(data2);
}
- t = swf_InsertTag(t, ST_DEFINESHAPE);
+ t = swf_InsertTag(t, ST_DEFINESHAPE3);
swf_ShapeNew(&s);
swf_GetMatrix(NULL, &m);
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);
+ swf_ObjectPlace(t, id + 1, 50, &m, NULL, NULL);
t = swf_InsertTag(t, ST_SHOWFRAME);