+ cinfo.err = jpeg_std_error(&jerr);
+ jpeg_create_decompress(&cinfo);
+
+ if ((f = fopen(fname, "rb")) == NULL) {
+ fprintf(stderr, "rfxswf: file open error\n");
+ return -1;
+ }
+
+ jpeg_stdio_src(&cinfo, f);
+ jpeg_read_header(&cinfo, TRUE);
+ jpeg_start_decompress(&cinfo);
+
+ out =
+ swf_SetJPEGBitsStart(t, cinfo.output_width, cinfo.output_height,
+ quality);
+ scanline = (U8 *) rfx_alloc(4 * cinfo.output_width);
+
+ if (scanline) {
+ int y;
+ U8 *js = scanline;
+ if (cinfo.out_color_space == JCS_GRAYSCALE) {
+ for (y = 0; y < cinfo.output_height; y++) {
+ int x;
+ jpeg_read_scanlines(&cinfo, &js, 1);
+ for (x = cinfo.output_width - 1; x >= 0; x--) {
+ js[x * 3] = js[x * 3 + 1] = js[x * 3 + 2] = js[x];
+ }
+ swf_SetJPEGBitsLines(out, (U8 **) & js, 1);
+ }
+ } else if (cinfo.out_color_space == JCS_RGB) {
+ for (y = 0; y < cinfo.output_height; y++) {
+ jpeg_read_scanlines(&cinfo, &js, 1);
+ swf_SetJPEGBitsLines(out, (U8 **) & js, 1);
+ }
+ } else if (cinfo.out_color_space == JCS_YCCK) {
+ //FIXME
+ fprintf(stderr, "Error: Can't convert YCCK to RGB.\n");
+ return -1;
+ } else if (cinfo.out_color_space == JCS_YCbCr) {
+ for (y = 0; y < cinfo.output_height; y++) {
+ int x;
+ for (x = 0; x < cinfo.output_width; x++) {
+ int y = js[x * 3 + 0];
+ int u = js[x * 3 + 1];
+ int v = js[x * 3 + 1];
+ js[x * 3 + 0] = y + ((360 * (v - 128)) >> 8);
+ js[x * 3 + 1] =
+ y - ((88 * (u - 128) + 183 * (v - 128)) >> 8);
+ js[x * 3 + 2] = y + ((455 * (u - 128)) >> 8);
+ }
+ }
+ } else if (cinfo.out_color_space == JCS_CMYK) {
+ for (y = 0; y < cinfo.output_height; y++) {
+ int x;
+ jpeg_read_scanlines(&cinfo, &js, 1);
+ /* This routine seems to work for now-
+ It's a mixture of 3 different
+ CMYK->RGB conversion routines I found in the
+ web. (which all produced garbage)
+ I'm happily accepting suggestions. (mk) */
+ for (x = 0; x < cinfo.output_width; x++) {
+ int white = 255 - js[x * 4 + 3];
+ js[x * 3 + 0] = white - ((js[x * 4] * white) >> 8);
+ js[x * 3 + 1] = white - ((js[x * 4 + 1] * white) >> 8);
+ js[x * 3 + 2] = white - ((js[x * 4 + 2] * white) >> 8);
+ }
+ swf_SetJPEGBitsLines(out, (U8 **) & js, 1);
+ }
+ }
+ }
+
+ swf_SetJPEGBitsFinish(out);
+ jpeg_finish_decompress(&cinfo);
+ fclose(f);
+
+ return 0;
+}
+
+/* jpeg_source_mgr functions */
+static void tag_init_source(struct jpeg_decompress_struct *cinfo)
+{
+ TAG *tag = (TAG *) cinfo->client_data;
+ if (tag->id == ST_DEFINEBITSJPEG3) {
+ swf_SetTagPos(tag, 6);
+ } else {
+ swf_SetTagPos(tag, 2);
+ }
+ cinfo->src->bytes_in_buffer = 0;
+}
+static boolean tag_fill_input_buffer(struct jpeg_decompress_struct *cinfo)
+{
+ TAG *tag = (TAG *) cinfo->client_data;
+ if (tag->data[tag->pos + 0] == 0xff &&
+ tag->data[tag->pos + 1] == 0xd9 &&
+ tag->data[tag->pos + 2] == 0xff &&
+ tag->data[tag->pos + 3] == 0xd8) {
+ tag->pos += 4;
+ }
+ if (tag->pos >= tag->len) {
+ cinfo->src->next_input_byte = 0;
+ cinfo->src->bytes_in_buffer = 0;
+ return 0;
+ }
+ cinfo->src->next_input_byte = &tag->data[tag->pos];
+ cinfo->src->bytes_in_buffer = 1; //tag->len - tag->pos;
+ tag->pos += 1;
+ return 1;
+}
+static void tag_skip_input_data(struct jpeg_decompress_struct *cinfo, long count)
+{
+ TAG *tag = (TAG *) cinfo->client_data;
+ cinfo->src->next_input_byte = 0;
+ cinfo->src->bytes_in_buffer = 0;
+ tag->pos += count;
+}
+static boolean tag_resync_to_restart(struct jpeg_decompress_struct *cinfo, int desired)
+{
+ return jpeg_resync_to_restart(cinfo, desired);
+}
+static void tag_term_source(struct jpeg_decompress_struct *cinfo)
+{
+ TAG *tag = (TAG *) cinfo->client_data;
+}
+RGBA *swf_JPEG2TagToImage(TAG * tag, int *width, int *height)
+{
+ struct jpeg_decompress_struct cinfo;
+ struct jpeg_error_mgr jerr;
+ struct jpeg_source_mgr mgr;
+ RGBA *dest;
+ int y;
+ int offset = 0;
+ int oldtaglen = 0;
+ *width = 0;
+ *height = 0;
+
+ if (tag->id == ST_DEFINEBITSJPEG) {
+ fprintf(stderr, "rfxswf: extracting from definebitsjpeg not yet supported\n");
+ return 0;
+ }
+ if (tag->id == ST_DEFINEBITSJPEG3) {
+#ifdef HAVE_ZLIB
+ offset = swf_GetU32(tag);
+ oldtaglen = tag->len;
+ tag->len = offset+6;
+#else
+ fprintf(stderr, "rfxswf: extracting from definebitsjpeg3 not possible: no zlib\n");
+ return 0;
+#endif
+ }
+
+ cinfo.err = jpeg_std_error(&jerr);
+ jpeg_create_decompress(&cinfo);
+
+ cinfo.client_data = (void *) tag;
+ cinfo.src = &mgr;
+ cinfo.src->init_source = tag_init_source;
+ cinfo.src->fill_input_buffer = tag_fill_input_buffer;
+ cinfo.src->skip_input_data = tag_skip_input_data;
+ cinfo.src->resync_to_restart = jpeg_resync_to_restart;
+ cinfo.src->term_source = tag_term_source;
+ cinfo.out_color_space = JCS_RGB;
+
+ jpeg_read_header(&cinfo, TRUE);
+ *width = cinfo.image_width;
+ *height = cinfo.image_height;
+ dest =
+ rfx_alloc(sizeof(RGBA) * cinfo.image_width * cinfo.image_height);
+
+ jpeg_start_decompress(&cinfo);
+ for (y = 0; y < cinfo.output_height; y++) {
+ RGBA *line = &dest[y * cinfo.image_width];
+ U8 *to = (U8 *) line;
+ int x;
+ jpeg_read_scanlines(&cinfo, &to, 1);
+ for (x = cinfo.output_width - 1; x >= 0; --x) {
+ int r = to[x * 3 + 0];
+ int g = to[x * 3 + 1];
+ int b = to[x * 3 + 2];
+ line[x].r = r;
+ line[x].g = g;
+ line[x].b = b;
+ line[x].a = 255;
+ }
+ }
+
+ jpeg_finish_decompress(&cinfo);
+
+ jpeg_destroy_decompress(&cinfo);
+
+#ifdef HAVE_ZLIB
+ if(offset) {
+ U32 datalen = cinfo.output_width*cinfo.output_height;
+ U8* alphadata = (U8*)rfx_alloc(datalen);
+ int error;
+ tag->len = oldtaglen;
+ swf_SetTagPos(tag, 6+offset);
+ error = uncompress(alphadata, &datalen, &tag->data[tag->pos], tag->len - tag->pos);
+ if (error != Z_OK) {
+ fprintf(stderr, "rfxswf: Zlib error %d while extracting definejpeg3\n", error);
+ return 0;
+ }
+ for(y=0;y<cinfo.output_height;y++) {
+ RGBA*line = &dest[y*cinfo.output_width];
+ U8*aline = &alphadata[y*cinfo.output_width];
+ int x;
+ for(x=0;x<cinfo.output_width;x++) {
+ line[x].a = aline[x];
+ }
+ }
+ free(alphadata);
+ }
+#endif
+ return dest;
+}
+
+#endif // HAVE_JPEGLIB
+
+// Lossless compression texture based on zlib
+
+#ifdef HAVE_ZLIB
+
+int RFXSWF_deflate_wraper(TAG * t, z_stream * zs, boolean finish)
+{
+ U8 *data = rfx_alloc(OUTBUFFER_SIZE);
+ zs->next_out = data;
+ zs->avail_out = OUTBUFFER_SIZE;
+ while (1) {
+ int status = deflate(zs, Z_NO_FLUSH);
+
+ if (status != Z_OK) {
+ fprintf(stderr, "rfxswf: zlib compression error (%i)\n", status);
+ rfx_free(data);
+ return status;
+ }
+
+ if (zs->next_out != data) {
+ swf_SetBlock(t, data, zs->next_out - data);
+ zs->next_out = data;
+ zs->avail_out = OUTBUFFER_SIZE;
+ }
+
+ if (zs->avail_in == 0)
+ break;
+ }
+
+ if (!finish) {
+ rfx_free(data);
+ return 0;
+ }
+
+ while (1) {
+ int status = deflate(zs, Z_FINISH);
+ if (status != Z_OK && status != Z_STREAM_END) {
+ fprintf(stderr, "rfxswf: zlib compression error (%i)\n", status);
+ rfx_free(data);
+ return status;
+ }
+
+ if (zs->next_out != data) {
+ swf_SetBlock(t, data, zs->next_out - data);
+ zs->next_out = data;
+ zs->avail_out = OUTBUFFER_SIZE;
+ }
+
+ if (status == Z_STREAM_END)
+ break;
+ }
+ rfx_free(data);
+ return 0;
+}
+
+
+int swf_SetLosslessBits(TAG * t, U16 width, U16 height, void *bitmap, U8 bitmap_flags)
+{
+ int res = 0;
+ int bps;
+
+ switch (bitmap_flags) {
+ case BMF_8BIT:
+ return swf_SetLosslessBitsIndexed(t, width, height, bitmap, NULL, 256);
+ case BMF_16BIT:
+ bps = BYTES_PER_SCANLINE(sizeof(U16) * width);
+ break;
+ case BMF_32BIT:
+ bps = width * 4;
+ break;
+ default:
+ fprintf(stderr, "rfxswf: unknown bitmap type %d\n", bitmap_flags);
+ return -1;
+ }
+
+ swf_SetU8(t, bitmap_flags);
+ swf_SetU16(t, width);
+ swf_SetU16(t, height);
+
+ {
+ z_stream zs;
+
+ memset(&zs, 0x00, sizeof(z_stream));
+ zs.zalloc = Z_NULL;
+ zs.zfree = Z_NULL;
+
+ if (deflateInit(&zs, Z_DEFAULT_COMPRESSION) == Z_OK) {
+ zs.avail_in = bps * height;
+ zs.next_in = bitmap;
+
+ if (RFXSWF_deflate_wraper(t, &zs, TRUE) < 0)
+ res = -3;
+ deflateEnd(&zs);
+
+ } else
+ res = -3; // zlib error
+ }
+ return res;
+}
+
+int swf_SetLosslessBitsIndexed(TAG * t, U16 width, U16 height, U8 * bitmap, RGBA * palette, U16 ncolors)
+{
+ RGBA *pal = palette;
+ int bps = BYTES_PER_SCANLINE(width);
+ int res = 0;
+
+ if (!pal) // create default palette for grayscale images
+ {
+ int i;
+ pal = rfx_alloc(256 * sizeof(RGBA));
+ for (i = 0; i < 256; i++) {
+ pal[i].r = pal[i].g = pal[i].b = i;
+ pal[i].a = 0xff;
+ }
+ ncolors = 256;
+ }
+
+ if ((ncolors < 2) || (ncolors > 256) || (!t)) {
+ fprintf(stderr, "rfxswf: unsupported number of colors: %d\n",
+ ncolors);
+ return -1; // parameter error
+ }
+
+ swf_SetU8(t, BMF_8BIT);
+ swf_SetU16(t, width);
+ swf_SetU16(t, height);
+ swf_SetU8(t, ncolors - 1); // number of pal entries
+
+ {
+ z_stream zs;
+
+ memset(&zs, 0x00, sizeof(z_stream));
+ zs.zalloc = Z_NULL;
+ zs.zfree = Z_NULL;
+
+ if (deflateInit(&zs, Z_DEFAULT_COMPRESSION) == Z_OK) {
+ U8 *zpal; // compress palette
+ if ((zpal = rfx_alloc(ncolors * 4))) {
+ U8 *pp = zpal;
+ int i;
+
+ /* be careful with ST_DEFINEBITSLOSSLESS2, because
+ the Flash player produces great bugs if you use too many
+ alpha colors in your palette. The only sensible result that
+ can be archeived is setting one color to r=0,b=0,g=0,a=0 to
+ make transparent parts in sprites. That's the cause why alpha
+ handling is implemented in lossless routines of rfxswf.
+
+ Indeed: I haven't understood yet how flash player handles
+ alpha values different from 0 and 0xff in lossless bitmaps...
+ */
+
+ if (swf_GetTagID(t) == ST_DEFINEBITSLOSSLESS2) // have alpha channel?
+ {
+ for (i = 0; i < ncolors; i++) {
+ pp[0] = pal[i].r;
+ pp[1] = pal[i].g;
+ pp[2] = pal[i].b;
+ pp[3] = pal[i].a;
+ pp += 4;
+ }
+ zs.avail_in = 4 * ncolors;
+ } else {
+ for (i = 0; i < ncolors; i++) // pack RGBA structures to RGB
+ {
+ pp[0] = pal[i].r;
+ pp[1] = pal[i].g;
+ pp[2] = pal[i].b;
+ pp += 3;
+ }
+ zs.avail_in = 3 * ncolors;
+ }
+
+ zs.next_in = zpal;
+
+ if (RFXSWF_deflate_wraper(t, &zs, FALSE) < 0)
+ res = -3;
+
+ // compress bitmap
+ zs.next_in = bitmap;
+ zs.avail_in = (bps * height * sizeof(U8));
+
+ if (RFXSWF_deflate_wraper(t, &zs, TRUE) < 0)
+ res = -3;
+
+ deflateEnd(&zs);
+
+ rfx_free(zpal);
+ } else
+ res = -2; // memory error
+ } else
+ res = -3; // zlib error
+ }
+
+ if (!palette)
+ rfx_free(pal);
+
+ return res;
+}
+
+int swf_SetLosslessBitsGrayscale(TAG * t, U16 width, U16 height, U8 * bitmap)
+{
+ return swf_SetLosslessBitsIndexed(t, width, height, bitmap, NULL, 256);
+}
+
+void swf_PreMultiplyAlpha(RGBA*data, int width, int height)
+{
+ int num = width*height;
+ int t;
+ for(t=0;t<num;t++) {
+ data[t].r = ((int)data[t].r*data[t].a)/255;
+ data[t].g = ((int)data[t].g*data[t].a)/255;
+ data[t].b = ((int)data[t].b*data[t].a)/255;
+ }
+}
+
+void swf_SetLosslessImage(TAG*tag, RGBA*data, int width, int height)
+{
+ int hasalpha = swf_ImageHasAlpha(data, width, height);
+ int num;
+ if(!hasalpha) {
+ tag->id = ST_DEFINEBITSLOSSLESS;
+ } else {
+ tag->id = ST_DEFINEBITSLOSSLESS2;
+ swf_PreMultiplyAlpha(data, width, height);
+ }
+ num = swf_ImageGetNumberOfPaletteEntries(data, width, height, 0);
+ if(num>1 && num<=256) {
+ RGBA*palette = (RGBA*)malloc(sizeof(RGBA)*num);
+ int width2 = BYTES_PER_SCANLINE(width);
+ U8*data2 = (U8*)malloc(width2*height);
+ int len = width*height;
+ int x,y;
+ int r;
+ swf_ImageGetNumberOfPaletteEntries(data, width, height, palette);
+ for(y=0;y<height;y++) {
+ RGBA*src = &data[width*y];
+ U8*dest = &data2[width2*y];
+ for(x=0;x<width;x++) {
+ RGBA col = src[x];
+ for(r=0;r<num;r++) {
+ if(*(U32*)&col == *(U32*)&palette[r]) {
+ dest[x] = r;
+ break;
+ }
+ }
+ if(r==num) {
+ fprintf(stderr, "Internal error: Couldn't find color %02x%02x%02x%02x in palette (%d entries)\n",
+ col.r, col.g, col.b, col.a, num);
+ dest[x] = 0;
+ }
+ }
+ }
+ swf_SetLosslessBitsIndexed(tag, width, height, data2, palette, num);
+ free(data2);
+ free(palette);
+ } else {
+ swf_SetLosslessBits(tag, width, height, data, BMF_32BIT);
+ }
+}
+
+RGBA *swf_DefineLosslessBitsTagToImage(TAG * tag, int *dwidth, int *dheight)
+{
+ int id, format, height, width, pos;
+ U32 datalen, datalen2;
+ int error;
+ int bpp = 1;
+ int cols = 0;
+ int pos2 = 0;
+ char alpha = tag->id == ST_DEFINEBITSLOSSLESS2;
+ int t, x, y;
+ RGBA *palette = 0;
+ U8 *data, *data2;
+ RGBA *dest;
+ if (tag->id != ST_DEFINEBITSLOSSLESS &&
+ tag->id != ST_DEFINEBITSLOSSLESS2) {
+ fprintf(stderr, "rfxswf: Object %d is not a PNG picture!\n",
+ GET16(tag->data));
+ return 0;
+ }
+ swf_SetTagPos(tag, 0);
+ id = swf_GetU16(tag);
+ format = swf_GetU8(tag);
+ if (format == 3)
+ bpp = 8;
+ if (format == 4)
+ bpp = 16;
+ if (format == 5)
+ bpp = 32;
+ if (format != 3 && format != 5) {
+ if (format == 4)
+ fprintf(stderr,
+ "rfxswf: Can't handle 16-bit palette images yet (image %d)\n",
+ id);
+ else
+ fprintf(stderr, "rfxswf: Unknown image type %d in image %d\n",
+ format, id);
+ return 0;
+ }
+ *dwidth = width = swf_GetU16(tag);
+ *dheight = height = swf_GetU16(tag);
+
+ dest = rfx_alloc(sizeof(RGBA) * width * height);
+
+ if (format == 3)
+ cols = swf_GetU8(tag) + 1;
+ else
+ cols = 0;
+
+ data = 0;
+ datalen = (width * height * bpp / 8 + cols * 8);
+ do {
+ if (data)
+ rfx_free(data);
+ datalen += 4096;
+ data = rfx_alloc(datalen);
+ error =
+ uncompress(data, &datalen, &tag->data[tag->pos],
+ tag->len - tag->pos);
+ } while (error == Z_BUF_ERROR);
+ if (error != Z_OK) {
+ fprintf(stderr, "rfxswf: Zlib error %d (image %d)\n", error, id);
+ return 0;
+ }
+ pos = 0;
+
+ if (cols) {
+ palette = (RGBA *) rfx_alloc(cols * sizeof(RGBA));
+ for (t = 0; t < cols; t++) {
+ palette[t].r = data[pos++];
+ palette[t].g = data[pos++];
+ palette[t].b = data[pos++];
+ if (alpha) {
+ palette[t].a = data[pos++];
+ } else {
+ palette[t].a = 255;
+ }
+ }
+ }
+
+ for (y = 0; y < height; y++) {
+ int srcwidth = width * (bpp / 8);
+ if (bpp == 32) {
+ if (!alpha) {
+ // 32 bit to 24 bit "conversion"
+ for (x = 0; x < width; x++) {
+ dest[pos2].r = data[pos + 1];
+ dest[pos2].g = data[pos + 2];
+ dest[pos2].b = data[pos + 3];
+ dest[pos2].a = 255;
+ pos2++;
+ pos += 4; //ignore padding byte
+ }
+ } else {
+ for (x = 0; x < width; x++) {
+ /* TODO: is un-premultiplying alpha the right thing to do?
+ dest[pos2].r = data[pos + 1];
+ dest[pos2].g = data[pos + 2];
+ dest[pos2].b = data[pos + 3];*/
+ int alpha = data[pos+0];
+ if(alpha) {
+ dest[pos2].r = ((int)data[pos + 1]*255)/alpha;
+ dest[pos2].g = ((int)data[pos + 2]*255)/alpha;
+ dest[pos2].b = ((int)data[pos + 3]*255)/alpha;
+ } else {
+ dest[pos2].r = data[pos + 1];
+ dest[pos2].g = data[pos + 2];
+ dest[pos2].b = data[pos + 3];
+ }
+ dest[pos2].a = data[pos + 0]; //alpha
+ pos2++;
+ pos += 4;
+ }
+ }
+ } else {
+ for (x = 0; x < srcwidth; x++) {
+ dest[pos2] = palette[data[pos++]];
+ pos2++;
+ }
+ }
+ pos += ((srcwidth + 3) & ~3) - srcwidth; //align
+ }
+ if (palette)
+ rfx_free(palette);
+ rfx_free(data);
+ return dest;
+}
+
+#endif // HAVE_ZLIB
+
+#if defined(HAVE_ZLIB) && defined(HAVE_JPEGLIB)
+int swf_SetJPEGBits3(TAG * tag, U16 width, U16 height, RGBA * bitmap, int quality)
+{
+ JPEGBITS *jpeg;
+ int y;
+ int pos;
+ int res = 0;
+ U8 *data;
+ z_stream zs;
+
+ pos = tag->len;
+ swf_SetU32(tag, 0); //placeholder
+ jpeg = swf_SetJPEGBitsStart(tag, width, height, quality);
+ for (y = 0; y < height; y++) {
+ U8 scanline[3 * width];
+ int x, p = 0;
+ for (x = 0; x < width; x++) {
+ scanline[p++] = bitmap[width * y + x].r;
+ scanline[p++] = bitmap[width * y + x].g;
+ scanline[p++] = bitmap[width * y + x].b;
+ }
+ swf_SetJPEGBitsLine(jpeg, scanline);
+ }
+ swf_SetJPEGBitsFinish(jpeg);
+ PUT32(&tag->data[pos], tag->len - pos - 4);
+
+ data = rfx_alloc(OUTBUFFER_SIZE);
+ memset(&zs, 0x00, sizeof(z_stream));
+
+ if (deflateInit(&zs, Z_DEFAULT_COMPRESSION) != Z_OK) {
+ fprintf(stderr, "rfxswf: zlib compression failed");
+ return -3;
+ }
+
+ zs.next_out = data;
+ zs.avail_out = OUTBUFFER_SIZE;
+
+ for (y = 0; y < height; y++) {
+ U8 scanline[width];
+ int x, p = 0;
+ for (x = 0; x < width; x++) {
+ scanline[p++] = bitmap[width * y + x].a;
+ }
+ zs.avail_in = width;
+ zs.next_in = scanline;
+
+ while (1) {
+ if (deflate(&zs, Z_NO_FLUSH) != Z_OK) {
+ fprintf(stderr, "rfxswf: zlib compression failed");
+ return -4;
+ }
+ if (zs.next_out != data) {
+ swf_SetBlock(tag, data, zs.next_out - data);
+ zs.next_out = data;
+ zs.avail_out = OUTBUFFER_SIZE;
+ }
+ if (!zs.avail_in) {
+ break;
+ }
+ }
+ }
+
+ while (1) {
+ int ret = deflate(&zs, Z_FINISH);
+ if (ret != Z_OK && ret != Z_STREAM_END) {
+ fprintf(stderr, "rfxswf: zlib compression failed");
+ return -5;
+ }
+ if (zs.next_out != data) {
+ swf_SetBlock(tag, data, zs.next_out - data);
+ zs.next_out = data;
+ zs.avail_out = OUTBUFFER_SIZE;
+ }
+ if (ret == Z_STREAM_END) {
+ break;
+ }
+ }
+
+ deflateEnd(&zs);
+ rfx_free(data);
+ return 0;
+}
+
+TAG* swf_AddImage(TAG*tag, int bitid, RGBA*mem, int width, int height, int quality)
+{
+ TAG *tag1 = 0, *tag2 = 0;
+ int has_alpha = swf_ImageHasAlpha(mem,width,height);
+
+ /* try lossless image */
+ tag1 = swf_InsertTag(0, /*ST_DEFINEBITSLOSSLESS1/2*/0);
+ swf_SetU16(tag1, bitid);
+ swf_SetLosslessImage(tag1, mem, width, height);
+
+ /* try jpeg image */
+ if(has_alpha) {
+ tag2 = swf_InsertTag(0, ST_DEFINEBITSJPEG3);
+ swf_SetU16(tag2, bitid);
+ swf_SetJPEGBits3(tag2, width, height, mem, quality);
+ } else {
+ tag2 = swf_InsertTag(0, ST_DEFINEBITSJPEG2);
+ swf_SetU16(tag2, bitid);
+ swf_SetJPEGBits2(tag2, width, height, mem, quality);
+ }
+
+ if(tag1 && tag1->len < tag2->len) {
+ /* use the zlib version- it's smaller */
+ tag1->prev = tag;
+ if(tag) tag->next = tag1;
+ tag = tag1;
+ swf_DeleteTag(tag2);
+ } else {
+ /* use the jpeg version- it's smaller */
+ tag2->prev = tag;
+ if(tag) tag->next = tag2;
+ tag = tag2;
+ swf_DeleteTag(tag1);
+ }
+ return tag;