|
 |
7c98bb |
diff -Naur tiff-4.0.3.orig/tools/tiff2pdf.c tiff-4.0.3/tools/tiff2pdf.c
|
|
|
7c98bb |
--- tiff-4.0.3.orig/tools/tiff2pdf.c 2012-07-25 22:56:43.000000000 -0400
|
|
|
7c98bb |
+++ tiff-4.0.3/tools/tiff2pdf.c 2013-05-02 12:04:49.057090227 -0400
|
|
|
7c98bb |
@@ -3341,33 +3341,56 @@
|
|
|
7c98bb |
uint32 height){
|
|
|
7c98bb |
|
|
|
7c98bb |
tsize_t i=0;
|
|
|
7c98bb |
- uint16 ri =0;
|
|
|
7c98bb |
- uint16 v_samp=1;
|
|
|
7c98bb |
- uint16 h_samp=1;
|
|
|
7c98bb |
- int j=0;
|
|
|
7c98bb |
-
|
|
|
7c98bb |
- i++;
|
|
|
7c98bb |
-
|
|
|
7c98bb |
- while(i<(*striplength)){
|
|
|
7c98bb |
+
|
|
|
7c98bb |
+ while (i < *striplength) {
|
|
|
7c98bb |
+ tsize_t datalen;
|
|
|
7c98bb |
+ uint16 ri;
|
|
|
7c98bb |
+ uint16 v_samp;
|
|
|
7c98bb |
+ uint16 h_samp;
|
|
|
7c98bb |
+ int j;
|
|
|
7c98bb |
+ int ncomp;
|
|
|
7c98bb |
+
|
|
|
7c98bb |
+ /* marker header: one or more FFs */
|
|
|
7c98bb |
+ if (strip[i] != 0xff)
|
|
|
7c98bb |
+ return(0);
|
|
|
7c98bb |
+ i++;
|
|
|
7c98bb |
+ while (i < *striplength && strip[i] == 0xff)
|
|
|
7c98bb |
+ i++;
|
|
|
7c98bb |
+ if (i >= *striplength)
|
|
|
7c98bb |
+ return(0);
|
|
|
7c98bb |
+ /* SOI is the only pre-SOS marker without a length word */
|
|
|
7c98bb |
+ if (strip[i] == 0xd8)
|
|
|
7c98bb |
+ datalen = 0;
|
|
|
7c98bb |
+ else {
|
|
|
7c98bb |
+ if ((*striplength - i) <= 2)
|
|
|
7c98bb |
+ return(0);
|
|
|
7c98bb |
+ datalen = (strip[i+1] << 8) | strip[i+2];
|
|
|
7c98bb |
+ if (datalen < 2 || datalen >= (*striplength - i))
|
|
|
7c98bb |
+ return(0);
|
|
|
7c98bb |
+ }
|
|
|
7c98bb |
switch( strip[i] ){
|
|
|
7c98bb |
- case 0xd8:
|
|
|
7c98bb |
- /* SOI - start of image */
|
|
|
7c98bb |
+ case 0xd8: /* SOI - start of image */
|
|
|
7c98bb |
_TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), 2);
|
|
|
7c98bb |
*bufferoffset+=2;
|
|
|
7c98bb |
- i+=2;
|
|
|
7c98bb |
break;
|
|
|
7c98bb |
- case 0xc0:
|
|
|
7c98bb |
- case 0xc1:
|
|
|
7c98bb |
- case 0xc3:
|
|
|
7c98bb |
- case 0xc9:
|
|
|
7c98bb |
- case 0xca:
|
|
|
7c98bb |
+ case 0xc0: /* SOF0 */
|
|
|
7c98bb |
+ case 0xc1: /* SOF1 */
|
|
|
7c98bb |
+ case 0xc3: /* SOF3 */
|
|
|
7c98bb |
+ case 0xc9: /* SOF9 */
|
|
|
7c98bb |
+ case 0xca: /* SOF10 */
|
|
|
7c98bb |
if(no==0){
|
|
|
7c98bb |
- _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), strip[i+2]+2);
|
|
|
7c98bb |
- for(j=0;j
|
|
|
7c98bb |
- if( (buffer[*bufferoffset+11+(2*j)]>>4) > h_samp)
|
|
|
7c98bb |
- h_samp = (buffer[*bufferoffset+11+(2*j)]>>4);
|
|
|
7c98bb |
- if( (buffer[*bufferoffset+11+(2*j)] & 0x0f) > v_samp)
|
|
|
7c98bb |
- v_samp = (buffer[*bufferoffset+11+(2*j)] & 0x0f);
|
|
|
7c98bb |
+ _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2);
|
|
|
7c98bb |
+ ncomp = buffer[*bufferoffset+9];
|
|
|
7c98bb |
+ if (ncomp < 1 || ncomp > 4)
|
|
|
7c98bb |
+ return(0);
|
|
|
7c98bb |
+ v_samp=1;
|
|
|
7c98bb |
+ h_samp=1;
|
|
|
7c98bb |
+ for(j=0;j
|
|
|
7c98bb |
+ uint16 samp = buffer[*bufferoffset+11+(3*j)];
|
|
|
7c98bb |
+ if( (samp>>4) > h_samp)
|
|
|
7c98bb |
+ h_samp = (samp>>4);
|
|
|
7c98bb |
+ if( (samp & 0x0f) > v_samp)
|
|
|
7c98bb |
+ v_samp = (samp & 0x0f);
|
|
|
7c98bb |
}
|
|
|
7c98bb |
v_samp*=8;
|
|
|
7c98bb |
h_samp*=8;
|
|
|
7c98bb |
@@ -3381,45 +3404,43 @@
|
|
|
7c98bb |
(unsigned char) ((height>>8) & 0xff);
|
|
|
7c98bb |
buffer[*bufferoffset+6]=
|
|
|
7c98bb |
(unsigned char) (height & 0xff);
|
|
|
7c98bb |
- *bufferoffset+=strip[i+2]+2;
|
|
|
7c98bb |
- i+=strip[i+2]+2;
|
|
|
7c98bb |
-
|
|
|
7c98bb |
+ *bufferoffset+=datalen+2;
|
|
|
7c98bb |
+ /* insert a DRI marker */
|
|
|
7c98bb |
buffer[(*bufferoffset)++]=0xff;
|
|
|
7c98bb |
buffer[(*bufferoffset)++]=0xdd;
|
|
|
7c98bb |
buffer[(*bufferoffset)++]=0x00;
|
|
|
7c98bb |
buffer[(*bufferoffset)++]=0x04;
|
|
|
7c98bb |
buffer[(*bufferoffset)++]=(ri >> 8) & 0xff;
|
|
|
7c98bb |
buffer[(*bufferoffset)++]= ri & 0xff;
|
|
|
7c98bb |
- } else {
|
|
|
7c98bb |
- i+=strip[i+2]+2;
|
|
|
7c98bb |
}
|
|
|
7c98bb |
break;
|
|
|
7c98bb |
- case 0xc4:
|
|
|
7c98bb |
- case 0xdb:
|
|
|
7c98bb |
- _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), strip[i+2]+2);
|
|
|
7c98bb |
- *bufferoffset+=strip[i+2]+2;
|
|
|
7c98bb |
- i+=strip[i+2]+2;
|
|
|
7c98bb |
+ case 0xc4: /* DHT */
|
|
|
7c98bb |
+ case 0xdb: /* DQT */
|
|
|
7c98bb |
+ _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2);
|
|
|
7c98bb |
+ *bufferoffset+=datalen+2;
|
|
|
7c98bb |
break;
|
|
|
7c98bb |
- case 0xda:
|
|
|
7c98bb |
+ case 0xda: /* SOS */
|
|
|
7c98bb |
if(no==0){
|
|
|
7c98bb |
- _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), strip[i+2]+2);
|
|
|
7c98bb |
- *bufferoffset+=strip[i+2]+2;
|
|
|
7c98bb |
- i+=strip[i+2]+2;
|
|
|
7c98bb |
+ _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2);
|
|
|
7c98bb |
+ *bufferoffset+=datalen+2;
|
|
|
7c98bb |
} else {
|
|
|
7c98bb |
buffer[(*bufferoffset)++]=0xff;
|
|
|
7c98bb |
buffer[(*bufferoffset)++]=
|
|
|
7c98bb |
(unsigned char)(0xd0 | ((no-1)%8));
|
|
|
7c98bb |
- i+=strip[i+2]+2;
|
|
|
7c98bb |
}
|
|
|
7c98bb |
- _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), (*striplength)-i-1);
|
|
|
7c98bb |
- *bufferoffset+=(*striplength)-i-1;
|
|
|
7c98bb |
+ i += datalen + 1;
|
|
|
7c98bb |
+ /* copy remainder of strip */
|
|
|
7c98bb |
+ _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i]), *striplength - i);
|
|
|
7c98bb |
+ *bufferoffset+= *striplength - i;
|
|
|
7c98bb |
return(1);
|
|
|
7c98bb |
default:
|
|
|
7c98bb |
- i+=strip[i+2]+2;
|
|
|
7c98bb |
+ /* ignore any other marker */
|
|
|
7c98bb |
+ break;
|
|
|
7c98bb |
}
|
|
|
7c98bb |
+ i += datalen + 1;
|
|
|
7c98bb |
}
|
|
|
7c98bb |
-
|
|
|
7c98bb |
|
|
|
7c98bb |
+ /* failed to find SOS marker */
|
|
|
7c98bb |
return(0);
|
|
|
7c98bb |
}
|
|
|
7c98bb |
#endif
|