--- /dev/null
+/* png2swf.c
+
+ PNG to SWF converter tool
+
+ Part of the swftools package.
+
+ Copyright (c) 2002 Matthias Kramm <kramm@quiss.org>
+
+ This file is distributed under the GPL, see file COPYING for details
+
+*/
+
+#include <stdio.h>
+#include <math.h>
+#include <fcntl.h>
+#include <zlib.h>
+#include "../lib/rfxswf.h"
+#include "../lib/args.h"
+
+#define MAX_INPUT_FILES 1024
+#define VERBOSE(x) (global.verbose>=x)
+
+struct {
+ int framerate;
+ int max_image_width;
+ int max_image_height;
+ int force_width;
+ int force_height;
+ int prescale;
+ int nfiles;
+ int verbose;
+ char *outfile;
+} global;
+
+struct {
+ char *filename;
+ int scale;
+} image[MAX_INPUT_FILES];
+
+TAG *MovieStart(SWF * swf, int 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;
+
+ t = swf->firstTag = swf_InsertTag(NULL, ST_SETBACKGROUNDCOLOR);
+
+ rgb.r = rgb.g = rgb.b = rgb.a = 0x00;
+ swf_SetRGB(t, &rgb);
+
+ return t;
+}
+
+int MovieFinish(SWF * swf, TAG * t, char *sname)
+{
+ int handle, so = fileno(stdout);
+ t = swf_InsertTag(t, ST_END);
+
+ if ((!isatty(so)) && (!sname))
+ handle = so;
+ else {
+ if (!sname)
+ sname = "output.swf";
+ handle = open(sname, O_RDWR | O_CREAT | O_TRUNC, 0666);
+ }
+ 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;
+}
+
+int png_read_chunk(char (*head)[4], int*destlen, U8**destdata, FILE*fi)
+{
+ unsigned int len;
+ if(destlen) *destlen=0;
+ if(destdata) *destdata=0;
+ if(!fread(&len, 4, 1, fi))
+ return 0;
+ 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)
+ *destdata = malloc(len);
+ else
+ *destdata = 0;
+ if(!fread(*destdata, len, 1, fi)) {
+ *destdata = 0;
+ if(destlen) *destlen=0;
+ return 0;
+ }
+ fseek(fi, 4, SEEK_CUR);
+
+ } else {
+ fseek(fi, len+4, SEEK_CUR);
+ }
+ return 1;
+}
+
+unsigned int png_get_dword(FILE*fi)
+{
+ unsigned int a;
+ fread(&a,4,1,fi);
+ return REVERSESWAP32(a);
+}
+
+struct png_header
+{
+ int width;
+ int height;
+ int bpp;
+ int mode;
+};
+
+int png_read_header(FILE*fi, struct png_header*header)
+{
+ char id[4];
+ int len;
+ U8 head[8] = {137,80,78,71,13,10,26,10};
+ U8 head2[8];
+ U8*data;
+ fread(head2,8,1,fi);
+ if(strncmp(head,head2,4))
+ return 0;
+
+ 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(!strncasecmp(id, "IHDR", 4)) {
+ char a,b,c,f,i;
+ if(len < 8) exit(1);
+ header->width = REVERSESWAP32(*(U32*)&data[0]);
+ header->height = REVERSESWAP32(*(U32*)&data[4]);
+ a = data[8]; // should be 8
+ b = data[9]; // should be 3(indexed) or 2(rgb)
+
+ 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);
+ header->bpp = a;
+ header->mode = b;
+ return 1;
+ } else {
+ fseek(fi, len, SEEK_CUR);
+ }
+ free(data);
+ }
+ return 0;
+}
+
+TAG *MovieAddFrame(SWF * swf, TAG * t, char *sname, int scale,
+ int id)
+{
+ SHAPE *s;
+ SRECT r;
+ MATRIX m;
+ int fs;
+
+ char tagid[4];
+ int len;
+ U8*data;
+ U8*imagedata;
+ unsigned long int imagedatalen;
+ U8*palette;
+ int palettelen;
+ struct png_header header;
+ int bypp;
+
+ FILE *fi;
+ U8 *scanline;
+
+ if ((fi = fopen(sname, "rb")) == NULL) {
+ if (VERBOSE(1))
+ fprintf(stderr, "Read access failed: %s\n", sname);
+ return t;
+ }
+
+ if(!png_read_header(fi, &header))
+ return 0;
+
+ if(header.mode == 3) bypp = 1;
+ else
+ if(header.mode == 2) bypp = 3;
+ else
+ return 0;
+ imagedatalen = bypp * header.width * header.height + 65536;
+ imagedata = malloc(imagedatalen);
+
+ fseek(fi,8,SEEK_SET);
+ while(!feof(fi))
+ {
+ if(!png_read_chunk(&tagid, &len, &data, fi))
+ break;
+ if(!strncmp(tagid, "IEND", 4)) {
+ break;
+ }
+ if(!strncmp(tagid, "PLTE", 4)) {
+ palette = data;
+ palettelen = len/3;
+ data = 0;
+ printf("%d palette\n", len);
+ }
+ if(!strncmp(tagid, "IDAT", 4)) {
+ if(uncompress(imagedata, &imagedatalen, data, len) != Z_OK) {
+ fprintf(stderr, "Couldn't uncompress %s!\n", sname);
+ return 0;
+ }
+ printf("IDAT %d -> %d\n", len, imagedatalen);
+ }
+ if(data)
+ free(data);
+ }
+
+ t = swf_InsertTag(t, ST_DEFINEBITSLOSSLESS);
+ swf_SetU16(t, id); // id
+ if(header.mode == 2) {
+ U8*data2 = malloc(header.width*header.height*4);
+ int i,s=0;
+ int x,y;
+ int pos=0;
+ /* 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;
+ }
+ }
+ 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 i,x,y;
+ int pos=0;
+ /* 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;
+ }
+ for(y=0;y<header.height;y++) {
+ pos++; //filter mode
+ for(x=0;x<header.width;x++) {
+ data2[y*header.width+x] =
+ imagedata[pos++];
+ }
+ }
+ swf_SetLosslessBitsIndexed(t, header.width, header.height, data2, rgba, palettelen);
+ free(rgba);
+ free(data2);
+ }
+
+ t = swf_InsertTag(t, ST_DEFINESHAPE);
+
+ swf_ShapeNew(&s);
+ swf_GetMatrix(NULL, &m);
+ m.sx = 20 * 0x10000;
+ m.sy = 20 * 0x10000;
+ fs = swf_ShapeAddBitmapFillStyle(s, &m, id, 0);
+
+ swf_SetU16(t, id + 1); // id
+
+ r.xmin = r.ymin = 0;
+ r.xmax = header.width * 20;
+ r.ymax = header.height * 20;
+ swf_SetRect(t, &r);
+
+ swf_SetShapeHeader(t, s);
+
+ swf_ShapeSetAll(t, s, 0, 0, 0, fs, 0);
+ swf_ShapeSetLine(t, s, r.xmax, 0);
+ swf_ShapeSetLine(t, s, 0, r.ymax);
+ swf_ShapeSetLine(t, s, -r.xmax, 0);
+ swf_ShapeSetLine(t, s, 0, -r.ymax);
+
+ swf_ShapeSetEnd(t);
+
+ t = swf_InsertTag(t, ST_REMOVEOBJECT2);
+ swf_SetU16(t, 1); // 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);
+
+ t = swf_InsertTag(t, ST_SHOWFRAME);
+
+ fclose(fi);
+
+ return t;
+}
+
+
+int CheckInputFile(char *fname, char **realname)
+{
+ FILE *fi;
+ char *s = malloc(strlen(fname) + 5);
+ struct png_header head;
+
+ if (!s)
+ exit(2);
+ (*realname) = s;
+ strcpy(s, fname);
+
+ // Check whether file exists (with typical extensions)
+
+ if ((fi = fopen(s, "rb")) == NULL) {
+ sprintf(s, "%s.png", fname);
+ if ((fi = fopen(s, "rb")) == NULL) {
+ sprintf(s, "%s.PNG", fname);
+ if ((fi = fopen(s, "rb")) == NULL) {
+ sprintf(s, "%s.Png", fname);
+ if ((fi = fopen(s, "rb")) == NULL)
+ fprintf(stderr, "Couldn't open %s!\n", fname);
+ return -1;
+ }
+ }
+ }
+
+ if(!png_read_header(fi, &head)) {
+ 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;
+ if (global.max_image_height < head.height)
+ global.max_image_height = head.height;
+
+ fclose(fi);
+
+ return 0;
+}
+
+int args_callback_option(char *arg, char *val)
+{
+ int res = 0;
+ if (arg[1])
+ res = -1;
+ else
+ switch (arg[0]) {
+ case 'r':
+ if (val)
+ global.framerate = atoi(val);
+ if ((global.framerate < 1) ||(global.framerate > 5000)) {
+ if (VERBOSE(1))
+ fprintf(stderr,
+ "Error: You must specify a valid framerate between 1 and 10000.\n");
+ exit(1);
+ }
+ res = 1;
+ break;
+
+ case 'o':
+ if (val)
+ global.outfile = val;
+ res = 1;
+ break;
+
+ case 'v':
+ if (val)
+ global.verbose = atoi(val);
+ res = 1;
+ break;
+
+ case 'X':
+ if (val)
+ global.force_width = atoi(val);
+ res = 1;
+ break;
+
+ case 'Y':
+ if (val)
+ global.force_height = atoi(val);
+ res = 1;
+ break;
+
+ case 'V':
+ printf("png2swf - part of %s %s\n", PACKAGE, VERSION);
+ exit(0);
+
+ default:
+ res = -1;
+ break;
+ }
+
+ if (res < 0) {
+ if (VERBOSE(1))
+ fprintf(stderr, "Unknown option: -%s\n", arg);
+ exit(1);
+ return 0;
+ }
+ return res;
+}
+
+struct options_t options[] =
+{
+{"o", "output"},
+{"r", "rate"},
+{"v", "verbose"},
+{"X", "width"},
+{"Y", "height"},
+{"V", "version"},
+{"s", "scale"}
+};
+
+int args_callback_longoption(char *name, char *val)
+{
+ return args_long2shortoption(options, name, 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))
+ fprintf(stderr, "Error: Too many input files.\n");
+ exit(1);
+ }
+ }
+ return 0;
+}
+
+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 scale (default: autodetect)\n");
+ printf("-Y pixel (height) Force movie height to scale (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");
+}
+
+
+int main(int argc, char **argv)
+{
+ SWF swf;
+ TAG *t;
+
+ memset(&global, 0x00, sizeof(global));
+
+ global.framerate = 100;
+ global.verbose = 1;
+ global.prescale = 1;
+
+ processargs(argc, argv);
+
+ 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);
+
+ {
+ 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);
+ free(image[i].filename);
+ }
+ }
+
+ MovieFinish(&swf, t, global.outfile);
+
+ return 0;
+}
git.asbjorn.biz / swftools.git / commitdiff