#define OUTBUFFER_SIZE 0x8000
+int swf_ImageHasAlpha(RGBA*img, int width, int height)
+{
+ int len = width*height;
+ int t;
+ int hasalpha=0;
+ for(t=0;t<len;t++) {
+ if(img[t].a >= 4 && img[t].a < 0xfc)
+ return 2;
+ if(img[t].a < 4)
+ hasalpha=1;
+ }
+ return hasalpha;
+}
+
+int swf_ImageGetNumberOfPaletteEntries(RGBA*img, int width, int height, RGBA*palette)
+{
+ int len = width*height;
+ int t;
+ int palsize = 0;
+ RGBA pal[256];
+ int palette_overflow = 0;
+ for(t=0;t<len;t++) {
+ RGBA col = img[t];
+ U32 col32 = *(U32*)&img[t];
+ int i=0;
+ for(i=0;i<palsize;i++) {
+ if(col32 == *(U32*)&pal[i])
+ break;
+ }
+ if(i==palsize) {
+ if(palsize==256) {
+ palette_overflow = 1;
+ break;
+ }
+ pal[palsize++] = col;
+ }
+ }
+ if(palette_overflow)
+ return width*height;
+ if(palette)
+ memcpy(palette, pal, palsize*sizeof(RGBA));
+ return palsize;
+}
+
#ifdef HAVE_JPEGLIB
-typedef struct _JPEGDESTMGR
-{ struct jpeg_destination_mgr mgr;
- TAG * t;
- JOCTET * buffer;
- struct jpeg_compress_struct cinfo;
- struct jpeg_error_mgr jerr;
-} JPEGDESTMGR, * LPJPEGDESTMGR;
+typedef struct _JPEGDESTMGR {
+ struct jpeg_destination_mgr mgr;
+ TAG *t;
+ JOCTET *buffer;
+ struct jpeg_compress_struct cinfo;
+ struct jpeg_error_mgr jerr;
+} JPEGDESTMGR, *LPJPEGDESTMGR;
// Destination manager callbacks
-static void RFXSWF_init_destination(j_compress_ptr cinfo)
-{ JPEGDESTMGR * dmgr = (JPEGDESTMGR *)cinfo->dest;
- dmgr->buffer = (JOCTET*)rfx_alloc(OUTBUFFER_SIZE);
- dmgr->mgr.next_output_byte = dmgr->buffer;
- dmgr->mgr.free_in_buffer = OUTBUFFER_SIZE;
+static void RFXSWF_init_destination(j_compress_ptr cinfo)
+{
+ JPEGDESTMGR *dmgr = (JPEGDESTMGR *) cinfo->dest;
+ dmgr->buffer = (JOCTET *) rfx_alloc(OUTBUFFER_SIZE);
+ dmgr->mgr.next_output_byte = dmgr->buffer;
+ dmgr->mgr.free_in_buffer = OUTBUFFER_SIZE;
}
static boolean RFXSWF_empty_output_buffer(j_compress_ptr cinfo)
-{ JPEGDESTMGR * dmgr = (JPEGDESTMGR *)cinfo->dest;
- swf_SetBlock(dmgr->t,(U8*)dmgr->buffer,OUTBUFFER_SIZE);
- dmgr->mgr.next_output_byte = dmgr->buffer;
- dmgr->mgr.free_in_buffer = OUTBUFFER_SIZE;
- return TRUE;
+{
+ JPEGDESTMGR *dmgr = (JPEGDESTMGR *) cinfo->dest;
+ swf_SetBlock(dmgr->t, (U8 *) dmgr->buffer, OUTBUFFER_SIZE);
+ dmgr->mgr.next_output_byte = dmgr->buffer;
+ dmgr->mgr.free_in_buffer = OUTBUFFER_SIZE;
+ return TRUE;
}
-static void RFXSWF_term_destination(j_compress_ptr cinfo)
-{ JPEGDESTMGR * dmgr = (JPEGDESTMGR *)cinfo->dest;
- swf_SetBlock(dmgr->t,(U8*)dmgr->buffer,OUTBUFFER_SIZE-dmgr->mgr.free_in_buffer);
- rfx_free(dmgr->buffer);
- dmgr->mgr.free_in_buffer = 0;
+static void RFXSWF_term_destination(j_compress_ptr cinfo)
+{
+ JPEGDESTMGR *dmgr = (JPEGDESTMGR *) cinfo->dest;
+ swf_SetBlock(dmgr->t, (U8 *) dmgr->buffer,
+ OUTBUFFER_SIZE - dmgr->mgr.free_in_buffer);
+ rfx_free(dmgr->buffer);
+ dmgr->mgr.free_in_buffer = 0;
}
-JPEGBITS * swf_SetJPEGBitsStart(TAG * t,int width,int height,int quality)
+JPEGBITS *swf_SetJPEGBitsStart(TAG * t, int width, int height, int quality)
{
- JPEGDESTMGR * jpeg;
-
- // redirect compression lib output to local SWF Tag structure
-
- jpeg = (JPEGDESTMGR *)rfx_calloc(sizeof(JPEGDESTMGR));
-
- jpeg->cinfo.err = jpeg_std_error(&jpeg->jerr);
+ JPEGDESTMGR *jpeg;
- jpeg_create_compress(&jpeg->cinfo);
+ // redirect compression lib output to local SWF Tag structure
- jpeg->mgr.init_destination = RFXSWF_init_destination;
- jpeg->mgr.empty_output_buffer = RFXSWF_empty_output_buffer;
- jpeg->mgr.term_destination = RFXSWF_term_destination;
-
- jpeg->t = t;
+ jpeg = (JPEGDESTMGR *) rfx_calloc(sizeof(JPEGDESTMGR));
- jpeg->cinfo.dest = (struct jpeg_destination_mgr *)jpeg;
+ jpeg->cinfo.err = jpeg_std_error(&jpeg->jerr);
- // init compression
-
- jpeg->cinfo.image_width = width;
- jpeg->cinfo.image_height = height;
- jpeg->cinfo.input_components = 3;
- jpeg->cinfo.in_color_space = JCS_RGB;
+ jpeg_create_compress(&jpeg->cinfo);
- jpeg_set_defaults(&jpeg->cinfo);
- jpeg_set_quality(&jpeg->cinfo,quality,TRUE);
+ jpeg->mgr.init_destination = RFXSWF_init_destination;
+ jpeg->mgr.empty_output_buffer = RFXSWF_empty_output_buffer;
+ jpeg->mgr.term_destination = RFXSWF_term_destination;
- // write tables to SWF
-
- jpeg_write_tables(&jpeg->cinfo);
+ jpeg->t = t;
- // compess image to SWF
-
- jpeg_suppress_tables(&jpeg->cinfo, TRUE);
- jpeg_start_compress(&jpeg->cinfo, FALSE);
+ jpeg->cinfo.dest = (struct jpeg_destination_mgr *) jpeg;
+
+ // init compression
+
+ jpeg->cinfo.image_width = width;
+ jpeg->cinfo.image_height = height;
+ jpeg->cinfo.input_components = 3;
+ jpeg->cinfo.in_color_space = JCS_RGB;
+
+ jpeg_set_defaults(&jpeg->cinfo);
+ jpeg_set_quality(&jpeg->cinfo, quality, TRUE);
- return (JPEGBITS *)jpeg;
+ // write tables to SWF
+
+ jpeg_write_tables(&jpeg->cinfo);
+
+ // compess image to SWF
+
+ jpeg_suppress_tables(&jpeg->cinfo, TRUE);
+ jpeg_start_compress(&jpeg->cinfo, FALSE);
+
+ return (JPEGBITS *) jpeg;
}
-int swf_SetJPEGBitsLines(JPEGBITS * jpegbits,U8 ** data,int n)
-{ JPEGDESTMGR * jpeg = (JPEGDESTMGR *)jpegbits;
- if (!jpeg) return -1;
- jpeg_write_scanlines(&jpeg->cinfo,data,n);
- return 0;
+int swf_SetJPEGBitsLines(JPEGBITS * jpegbits, U8 ** data, int n)
+{
+ JPEGDESTMGR *jpeg = (JPEGDESTMGR *) jpegbits;
+ if (!jpeg)
+ return -1;
+ jpeg_write_scanlines(&jpeg->cinfo, data, n);
+ return 0;
}
-int swf_SetJPEGBitsLine(JPEGBITS * jpegbits,U8 * data)
-{ return swf_SetJPEGBitsLines(jpegbits,&data,1);
+int swf_SetJPEGBitsLine(JPEGBITS * jpegbits, U8 * data)
+{
+ return swf_SetJPEGBitsLines(jpegbits, &data, 1);
}
int swf_SetJPEGBitsFinish(JPEGBITS * jpegbits)
-{ JPEGDESTMGR * jpeg = (JPEGDESTMGR *)jpegbits;
- if (!jpeg) return -1;
- jpeg_finish_compress(&jpeg->cinfo);
- rfx_free(jpeg);
- return 0;
+{
+ JPEGDESTMGR *jpeg = (JPEGDESTMGR *) jpegbits;
+ if (!jpeg)
+ return -1;
+ jpeg_finish_compress(&jpeg->cinfo);
+ rfx_free(jpeg);
+ return 0;
}
-void swf_SetJPEGBits2(TAG * tag,U16 width,U16 height,RGBA* bitmap, int quality)
+void swf_SetJPEGBits2(TAG * tag, U16 width, U16 height, RGBA * bitmap,
+ int quality)
{
- JPEGBITS* jpeg;
- int y;
- 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);
+ JPEGBITS *jpeg;
+ int y;
+ 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);
}
-void swf_GetJPEGSize(char * fname, int*width, int*height)
-{ struct jpeg_decompress_struct cinfo;
- struct jpeg_error_mgr jerr;
- FILE * fi;
- *width = 0;
- *height = 0;
- cinfo.err = jpeg_std_error(&jerr);
- jpeg_create_decompress(&cinfo);
- if ((fi=fopen(fname,"rb"))==NULL) {
- fprintf(stderr, "rfxswf: file open error\n");
- return;
- }
- jpeg_stdio_src(&cinfo, fi);
- jpeg_read_header(&cinfo, TRUE);
- *width = cinfo.image_width;
- *height = cinfo.image_height;
- jpeg_destroy_decompress(&cinfo);
- fclose(fi);
+void swf_GetJPEGSize(char *fname, int *width, int *height)
+{
+ struct jpeg_decompress_struct cinfo;
+ struct jpeg_error_mgr jerr;
+ FILE *fi;
+ *width = 0;
+ *height = 0;
+ cinfo.err = jpeg_std_error(&jerr);
+ jpeg_create_decompress(&cinfo);
+ if ((fi = fopen(fname, "rb")) == NULL) {
+ fprintf(stderr, "rfxswf: file open error\n");
+ return;
+ }
+ jpeg_stdio_src(&cinfo, fi);
+ jpeg_read_header(&cinfo, TRUE);
+ *width = cinfo.image_width;
+ *height = cinfo.image_height;
+ jpeg_destroy_decompress(&cinfo);
+ fclose(fi);
}
-int swf_SetJPEGBits(TAG * t,char * fname,int quality)
-{ struct jpeg_decompress_struct cinfo;
- struct jpeg_error_mgr jerr;
- JPEGBITS * out;
- FILE * f;
- U8 * scanline;
-
- 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;
- }
+int swf_SetJPEGBits(TAG * t, char *fname, int quality)
+{
+ struct jpeg_decompress_struct cinfo;
+ struct jpeg_error_mgr jerr;
+ JPEGBITS *out;
+ FILE *f;
+ U8 *scanline;
- jpeg_stdio_src(&cinfo,f);
- jpeg_read_header(&cinfo, TRUE);
- jpeg_start_decompress(&cinfo);
+ cinfo.err = jpeg_std_error(&jerr);
+ jpeg_create_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");
+ if ((f = fopen(fname, "rb")) == NULL) {
+ fprintf(stderr, "rfxswf: file open error\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);
+
+ 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;
+ 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;
+ TAG *tag = (TAG *) cinfo->client_data;
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;
+ 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;
+ 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;
+ TAG *tag = (TAG *) cinfo->client_data;
cinfo->src->next_input_byte = 0;
cinfo->src->bytes_in_buffer = 0;
tag->pos += count;
}
static void tag_term_source(struct jpeg_decompress_struct *cinfo)
{
- TAG*tag = (TAG*)cinfo->client_data;
+ TAG *tag = (TAG *) cinfo->client_data;
}
-RGBA* swf_JPEG2TagToImage(TAG*tag, int*width, int*height)
+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;
+ RGBA *dest;
int y;
*width = 0;
*height = 0;
- if(tag->id == ST_DEFINEBITSJPEG) {
- fprintf(stderr, "rfxswf: extracting from definebitsjpeg not yet supported");
- return 0;
+ if (tag->id == ST_DEFINEBITSJPEG) {
+ fprintf(stderr,
+ "rfxswf: extracting from definebitsjpeg not yet supported");
+ return 0;
}
- if(tag->id == ST_DEFINEBITSJPEG3) {
- fprintf(stderr, "rfxswf: extracting from definebitsjpeg3 not yet supported");
- return 0;
+ if (tag->id == ST_DEFINEBITSJPEG3) {
+ fprintf(stderr,
+ "rfxswf: extracting from definebitsjpeg3 not yet supported");
+ return 0;
}
cinfo.err = jpeg_std_error(&jerr);
- jpeg_create_decompress(&cinfo);
+ jpeg_create_decompress(&cinfo);
- cinfo.client_data = (void*)tag;
+ cinfo.client_data = (void *) tag;
cinfo.src = &mgr;
cinfo.src->init_source = tag_init_source;
cinfo.src->fill_input_buffer = tag_fill_input_buffer;
jpeg_read_header(&cinfo, TRUE);
*width = cinfo.image_width;
*height = cinfo.image_height;
- dest = rfx_alloc(sizeof(RGBA)*cinfo.image_width*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;
- }
+ 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);
return dest;
}
-
-#endif // HAVE_JPEGLIB
+#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);
+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 (status!=Z_OK)
- {
-#ifdef DEBUG_RFXSWF
- fprintf(stderr,"rfxswf: zlib compression error (%i)\n",status);
-#endif
- 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 (zs->next_out!=data)
- { swf_SetBlock(t,data,zs->next_out - data);
- zs->next_out = data;
- zs->avail_out = OUTBUFFER_SIZE;
+ if (!finish) {
+ rfx_free(data);
+ return 0;
}
-
- 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;
+ }
- while(1) {
- int status = deflate(zs,Z_FINISH);
- if (status!=Z_OK && status!=Z_STREAM_END)
- {
-#ifdef DEBUG_RFXSWF
- fprintf(stderr,"rfxswf: zlib compression error (%i)\n",status);
-#endif
- 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->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;
}
-
- if(status == Z_STREAM_END)
- break;
- }
- rfx_free(data);
- return 0;
+ 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);
+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;
+ bps = BYTES_PER_SCANLINE(sizeof(U16) * width);
+ break;
case BMF_32BIT:
- bps = width*4;
- break;
+ 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;
+ 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);
+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
+ }
- return res;
+ 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);
+int swf_SetLosslessBitsGrayscale(TAG * t, U16 width, U16 height, U8 * bitmap)
+{
+ return swf_SetLosslessBitsIndexed(t, width, height, bitmap, NULL, 256);
}
-RGBA* swf_DefineLosslessBitsTagToImage(TAG*tag, int*dwidth, int*dheight)
+void swf_SetLosslessImage(TAG*tag, RGBA*data, int width, int height)
{
- int id,format,height, width, pos;
+ int hasalpha = swf_ImageHasAlpha(data, width, height);
+ if(!hasalpha) {
+ tag->id = ST_DEFINEBITSLOSSLESS;
+ } else {
+ tag->id = ST_DEFINEBITSLOSSLESS2;
+ /* TODO: premultiply alpha? */
+ }
+ int num = swf_ImageGetNumberOfPaletteEntries(data, width, height, 0);
+ if(num>1 && num<=256) {
+ RGBA*palette = (RGBA*)malloc(sizeof(RGBA)*num);
+ swf_ImageGetNumberOfPaletteEntries(data, width, height, palette);
+ int width2 = BYTES_PER_SCANLINE(width);
+ U8*data2 = (U8*)malloc(width2*height);
+ int len = width*height;
+ int x,y;
+ int r;
+ 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;
+ 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;
+ 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);
+ 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);
+ 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;
+ 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);
+ datalen = (width * height * bpp / 8 + cols * 8);
do {
- if(data)
+ if (data)
rfx_free(data);
- datalen+=4096;
+ 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) {
+ 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++];
- }
- }
- }
-
- 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++) {
- 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 (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++];
+ }
+ }
}
- if(palette)
- rfx_free(palette);
+
+ 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: un-premultiply alpha? */
+ 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
+#endif // HAVE_ZLIB
#if defined(HAVE_ZLIB) && defined(HAVE_JPEGLIB)
-int swf_SetJPEGBits3(TAG * tag,U16 width,U16 height,RGBA* bitmap, int quality)
+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) {
+ 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 -4;
+ return -5;
}
- if(zs.next_out != data) {
+ 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) {
+ if (ret == Z_STREAM_END) {
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;
+
+ deflateEnd(&zs);
+ rfx_free(data);
+ return 0;
}
#endif
-RGBA* swf_ExtractImage(TAG*tag, int*dwidth, int*dheight)
+RGBA *swf_ExtractImage(TAG * tag, int *dwidth, int *dheight)
{
- RGBA*img;
- if(tag->id == ST_DEFINEBITSJPEG ||
- tag->id == ST_DEFINEBITSJPEG2 ||
- tag->id == ST_DEFINEBITSJPEG3) {
+ RGBA *img;
+ if (tag->id == ST_DEFINEBITSJPEG ||
+ tag->id == ST_DEFINEBITSJPEG2 || tag->id == ST_DEFINEBITSJPEG3) {
#ifdef HAVE_JPEGLIB
- return swf_JPEG2TagToImage(tag, dwidth, dheight);
+ return swf_JPEG2TagToImage(tag, dwidth, dheight);
#else
- fprintf(stderr, "rfxswf: Error: No JPEG library compiled in");
- return 0;
+ fprintf(stderr, "rfxswf: Error: No JPEG library compiled in");
+ return 0;
#endif
}
- if(tag->id == ST_DEFINEBITSLOSSLESS ||
- tag->id == ST_DEFINEBITSLOSSLESS2) {
+ if (tag->id == ST_DEFINEBITSLOSSLESS ||
+ tag->id == ST_DEFINEBITSLOSSLESS2) {
#ifdef HAVE_ZLIB
- return swf_DefineLosslessBitsTagToImage(tag, dwidth, dheight);
+ return swf_DefineLosslessBitsTagToImage(tag, dwidth, dheight);
#else
- fprintf(stderr, "rfxswf: Error: No JPEG library compiled in");
- return 0;
+ fprintf(stderr, "rfxswf: Error: No JPEG library compiled in");
+ return 0;
#endif
}
- fprintf(stderr, "rfxswf: Error: Invalid tag (%d, %s)", tag->id, swf_TagGetName(tag));
+ fprintf(stderr, "rfxswf: Error: Invalid tag (%d, %s)", tag->id,
+ swf_TagGetName(tag));
return 0;
}
#undef OUTBUFFER_SIZE
-void swf_RemoveJPEGTables(SWF*swf)
+void swf_RemoveJPEGTables(SWF * swf)
{
- TAG* tag = swf->firstTag;
- TAG* tables_tag = 0;
- while(tag) {
- if(tag->id == ST_JPEGTABLES) {
+ TAG *tag = swf->firstTag;
+ TAG *tables_tag = 0;
+ while (tag) {
+ if (tag->id == ST_JPEGTABLES) {
tables_tag = tag;
}
tag = tag->next;
}
-
- if(!tables_tag)
+
+ if (!tables_tag)
return;
-
+
tag = swf->firstTag;
- while(tag) {
- if(tag->id == ST_DEFINEBITSJPEG) {
- void*data = rfx_alloc(tag->len);
+ while (tag) {
+ if (tag->id == ST_DEFINEBITSJPEG) {
+ void *data = rfx_alloc(tag->len);
swf_GetBlock(tag, data, tag->len);
swf_ResetTag(tag, ST_DEFINEBITSJPEG2);
swf_SetBlock(tag, tables_tag->data, tables_tag->len);
}
tag = tag->next;
}
- if(swf->firstTag == tables_tag)
+ if (swf->firstTag == tables_tag)
swf->firstTag = tables_tag->next;
swf_DeleteTag(tables_tag);
}
+typedef struct scale_lookup {
+ int pos;
+ unsigned int weight;
+} scale_lookup_t;
+
+typedef struct rgba_int {
+ unsigned int r,g,b,a;
+} rgba_int_t;
+
+static int bicubic = 0;
+
+static scale_lookup_t**make_scale_lookup(int width, int newwidth)
+{
+ scale_lookup_t*lookupx = malloc((width>newwidth?width:newwidth)*2*sizeof(scale_lookup_t));
+ scale_lookup_t**lblockx = (scale_lookup_t**)malloc((newwidth+1)*sizeof(scale_lookup_t**));
+ double fx = ((double)width)/((double)newwidth);
+ double px = 0;
+ int x;
+ scale_lookup_t*p_x = lookupx;
+
+ if(newwidth<=width) {
+ for(x=0;x<newwidth;x++) {
+ lblockx[x] = p_x;
+ double ex = px + fx;
+ int fromx = (int)px;
+ int tox = (int)ex;
+ double rem = fromx+1-px;
+ int i = (int)(256/fx);
+ int xweight = (int)(rem*256/fx);
+ int xx;
+ int w = 0;
+ if(tox>=width) tox = width-1;
+ for(xx=fromx;xx<=tox;xx++) {
+ if(xx==fromx && xx==tox) p_x->weight = 256;
+ else if(xx==fromx) p_x->weight = xweight;
+ else if(xx==tox) p_x->weight = 256-w;
+ else p_x->weight = i;
+ w+=p_x->weight;
+ p_x->pos = xx;
+ p_x++;
+ }
+ px = ex;
+ }
+ } else {
+ for(x=0;x<newwidth;x++) {
+ lblockx[x] = p_x;
+ int ix1 = (int)px;
+ int ix2 = ((int)px)+1;
+ if(ix2>=width) ix2=width-1;
+ double r = px-ix1;
+ if(bicubic)
+ r = -2*r*r*r+3*r*r;
+ p_x[0].weight = (int)(256*(1-r));
+ p_x[0].pos = ix1;
+ p_x[1].weight = 256-p_x[0].weight;
+ p_x[1].pos = ix2;
+ p_x+=2;
+ px += fx;
+ }
+ }
+ lblockx[newwidth] = p_x;
+ return lblockx;
+}
+
+RGBA* swf_ImageScale(RGBA*data, int width, int height, int newwidth, int newheight)
+{
+ if(newwidth<2 || newheight<2)
+ return 0;
+ int x,y;
+ RGBA* newdata= (RGBA*)malloc(newwidth*newheight*sizeof(RGBA));
+ scale_lookup_t *p, **lblockx,**lblocky;
+ rgba_int_t*tmpline = (rgba_int_t*)malloc(width*sizeof(rgba_int_t));
+
+ lblockx = make_scale_lookup(width, newwidth);
+ lblocky = make_scale_lookup(height, newheight);
+
+ for(p=lblocky[0];p<lblocky[newheight];p++)
+ p->pos*=width;
+
+ for(y=0;y<newheight;y++) {
+ RGBA*destline = &newdata[y*newwidth];
+
+ /* create lookup table for y */
+ rgba_int_t*l = tmpline;
+ scale_lookup_t*p_y;
+ memset(tmpline, 0, width*sizeof(rgba_int_t));
+ for(p_y=lblocky[y];p_y<lblocky[y+1];p_y++) {
+ RGBA*line = &data[p_y->pos];
+ scale_lookup_t*p_x;
+ int weight = p_y->weight;
+ for(x=0;x<width;x++) {
+ tmpline[x].r += line[x].r*weight;
+ tmpline[x].g += line[x].g*weight;
+ tmpline[x].b += line[x].b*weight;
+ tmpline[x].a += line[x].a*weight;
+ }
+ }
+
+ /* process x direction */
+ scale_lookup_t*p_x = lblockx[0];
+ for(x=0;x<newwidth;x++) {
+ unsigned int r=0,g=0,b=0,a=0;
+ scale_lookup_t*p_x_to = lblockx[x+1];
+ do {
+ rgba_int_t* col = &tmpline[p_x->pos];
+ unsigned int weight = p_x->weight;
+ r += col->r*weight;
+ g += col->g*weight;
+ b += col->b*weight;
+ a += col->a*weight;
+ p_x++;
+ } while (p_x<p_x_to);
+
+ destline->r = r >> 16;
+ destline->g = g >> 16;
+ destline->b = b >> 16;
+ destline->a = a >> 16;
+
+ destline++;
+ }
+ }
+ free(tmpline);
+ free(*lblockx);
+ free(lblockx);
+ free(*lblocky);
+ free(lblocky);
+ return newdata;
+}
git.asbjorn.biz / swftools.git / commitdiff