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Diffstat (limited to 'src/3rdparty/libtiff/libtiff/tif_predict.c')
-rw-r--r--src/3rdparty/libtiff/libtiff/tif_predict.c239
1 files changed, 137 insertions, 102 deletions
diff --git a/src/3rdparty/libtiff/libtiff/tif_predict.c b/src/3rdparty/libtiff/libtiff/tif_predict.c
index 052a8e2..f93c664 100644
--- a/src/3rdparty/libtiff/libtiff/tif_predict.c
+++ b/src/3rdparty/libtiff/libtiff/tif_predict.c
@@ -1,4 +1,4 @@
-/* $Id: tif_predict.c,v 1.11.2.3 2009-01-23 15:57:18 fwarmerdam Exp $ */
+/* $Id: tif_predict.c,v 1.32 2010-03-10 18:56:49 bfriesen Exp $ */
/*
* Copyright (c) 1988-1997 Sam Leffler
@@ -34,20 +34,20 @@
#define PredictorState(tif) ((TIFFPredictorState*) (tif)->tif_data)
-static void horAcc8(TIFF*, tidata_t, tsize_t);
-static void horAcc16(TIFF*, tidata_t, tsize_t);
-static void horAcc32(TIFF*, tidata_t, tsize_t);
-static void swabHorAcc16(TIFF*, tidata_t, tsize_t);
-static void swabHorAcc32(TIFF*, tidata_t, tsize_t);
-static void horDiff8(TIFF*, tidata_t, tsize_t);
-static void horDiff16(TIFF*, tidata_t, tsize_t);
-static void horDiff32(TIFF*, tidata_t, tsize_t);
-static void fpAcc(TIFF*, tidata_t, tsize_t);
-static void fpDiff(TIFF*, tidata_t, tsize_t);
-static int PredictorDecodeRow(TIFF*, tidata_t, tsize_t, tsample_t);
-static int PredictorDecodeTile(TIFF*, tidata_t, tsize_t, tsample_t);
-static int PredictorEncodeRow(TIFF*, tidata_t, tsize_t, tsample_t);
-static int PredictorEncodeTile(TIFF*, tidata_t, tsize_t, tsample_t);
+static void horAcc8(TIFF* tif, uint8* cp0, tmsize_t cc);
+static void horAcc16(TIFF* tif, uint8* cp0, tmsize_t cc);
+static void horAcc32(TIFF* tif, uint8* cp0, tmsize_t cc);
+static void swabHorAcc16(TIFF* tif, uint8* cp0, tmsize_t cc);
+static void swabHorAcc32(TIFF* tif, uint8* cp0, tmsize_t cc);
+static void horDiff8(TIFF* tif, uint8* cp0, tmsize_t cc);
+static void horDiff16(TIFF* tif, uint8* cp0, tmsize_t cc);
+static void horDiff32(TIFF* tif, uint8* cp0, tmsize_t cc);
+static void fpAcc(TIFF* tif, uint8* cp0, tmsize_t cc);
+static void fpDiff(TIFF* tif, uint8* cp0, tmsize_t cc);
+static int PredictorDecodeRow(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s);
+static int PredictorDecodeTile(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s);
+static int PredictorEncodeRow(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s);
+static int PredictorEncodeTile(TIFF* tif, uint8* bp0, tmsize_t cc0, uint16 s);
static int
PredictorSetup(TIFF* tif)
@@ -66,23 +66,23 @@ PredictorSetup(TIFF* tif)
&& td->td_bitspersample != 16
&& td->td_bitspersample != 32) {
TIFFErrorExt(tif->tif_clientdata, module,
- "Horizontal differencing \"Predictor\" not supported with %d-bit samples",
- td->td_bitspersample);
+ "Horizontal differencing \"Predictor\" not supported with %d-bit samples",
+ td->td_bitspersample);
return 0;
}
break;
case PREDICTOR_FLOATINGPOINT:
if (td->td_sampleformat != SAMPLEFORMAT_IEEEFP) {
TIFFErrorExt(tif->tif_clientdata, module,
- "Floating point \"Predictor\" not supported with %d data format",
- td->td_sampleformat);
+ "Floating point \"Predictor\" not supported with %d data format",
+ td->td_sampleformat);
return 0;
}
break;
default:
TIFFErrorExt(tif->tif_clientdata, module,
- "\"Predictor\" value %d not supported",
- sp->predictor);
+ "\"Predictor\" value %d not supported",
+ sp->predictor);
return 0;
}
sp->stride = (td->td_planarconfig == PLANARCONFIG_CONTIG ?
@@ -94,6 +94,8 @@ PredictorSetup(TIFF* tif)
sp->rowsize = TIFFTileRowSize(tif);
else
sp->rowsize = TIFFScanlineSize(tif);
+ if (sp->rowsize == 0)
+ return 0;
return 1;
}
@@ -126,6 +128,7 @@ PredictorSetupDecode(TIFF* tif)
sp->decodetile = tif->tif_decodetile;
tif->tif_decodetile = PredictorDecodeTile;
}
+
/*
* If the data is horizontally differenced 16-bit data that
* requires byte-swapping, then it must be byte swapped before
@@ -137,10 +140,10 @@ PredictorSetupDecode(TIFF* tif)
if (sp->decodepfunc == horAcc16) {
sp->decodepfunc = swabHorAcc16;
tif->tif_postdecode = _TIFFNoPostDecode;
- } else if (sp->decodepfunc == horAcc32) {
+ } else if (sp->decodepfunc == horAcc32) {
sp->decodepfunc = swabHorAcc32;
tif->tif_postdecode = _TIFFNoPostDecode;
- }
+ }
}
}
@@ -205,7 +208,7 @@ PredictorSetupEncode(TIFF* tif)
tif->tif_encodetile = PredictorEncodeTile;
}
}
-
+
else if (sp->predictor == 3) {
sp->encodepfunc = fpDiff;
/*
@@ -228,7 +231,7 @@ PredictorSetupEncode(TIFF* tif)
#define REPEAT4(n, op) \
switch (n) { \
- default: { int i; for (i = n-4; i > 0; i--) { op; } } \
+ default: { tmsize_t i; for (i = n-4; i > 0; i--) { op; } } \
case 4: op; \
case 3: op; \
case 2: op; \
@@ -237,13 +240,13 @@ PredictorSetupEncode(TIFF* tif)
}
static void
-horAcc8(TIFF* tif, tidata_t cp0, tsize_t cc)
+horAcc8(TIFF* tif, uint8* cp0, tmsize_t cc)
{
- tsize_t stride = PredictorState(tif)->stride;
+ tmsize_t stride = PredictorState(tif)->stride;
char* cp = (char*) cp0;
+ assert((cc%stride)==0);
if (cc > stride) {
- cc -= stride;
/*
* Pipeline the most common cases.
*/
@@ -251,40 +254,49 @@ horAcc8(TIFF* tif, tidata_t cp0, tsize_t cc)
unsigned int cr = cp[0];
unsigned int cg = cp[1];
unsigned int cb = cp[2];
- do {
- cc -= 3, cp += 3;
+ cc -= 3;
+ cp += 3;
+ while (cc>0) {
cp[0] = (char) (cr += cp[0]);
cp[1] = (char) (cg += cp[1]);
cp[2] = (char) (cb += cp[2]);
- } while ((int32) cc > 0);
+ cc -= 3;
+ cp += 3;
+ }
} else if (stride == 4) {
unsigned int cr = cp[0];
unsigned int cg = cp[1];
unsigned int cb = cp[2];
unsigned int ca = cp[3];
- do {
- cc -= 4, cp += 4;
+ cc -= 4;
+ cp += 4;
+ while (cc>0) {
cp[0] = (char) (cr += cp[0]);
cp[1] = (char) (cg += cp[1]);
cp[2] = (char) (cb += cp[2]);
cp[3] = (char) (ca += cp[3]);
- } while ((int32) cc > 0);
+ cc -= 4;
+ cp += 4;
+ }
} else {
+ cc -= stride;
do {
REPEAT4(stride, cp[stride] =
(char) (cp[stride] + *cp); cp++)
cc -= stride;
- } while ((int32) cc > 0);
+ } while (cc>0);
}
}
}
static void
-swabHorAcc16(TIFF* tif, tidata_t cp0, tsize_t cc)
+swabHorAcc16(TIFF* tif, uint8* cp0, tmsize_t cc)
{
- tsize_t stride = PredictorState(tif)->stride;
+ tmsize_t stride = PredictorState(tif)->stride;
uint16* wp = (uint16*) cp0;
- tsize_t wc = cc / 2;
+ tmsize_t wc = cc / 2;
+
+ assert((cc%(2*stride))==0);
if (wc > stride) {
TIFFSwabArrayOfShort(wp, wc);
@@ -292,32 +304,36 @@ swabHorAcc16(TIFF* tif, tidata_t cp0, tsize_t cc)
do {
REPEAT4(stride, wp[stride] += wp[0]; wp++)
wc -= stride;
- } while ((int32) wc > 0);
+ } while (wc > 0);
}
}
static void
-horAcc16(TIFF* tif, tidata_t cp0, tsize_t cc)
+horAcc16(TIFF* tif, uint8* cp0, tmsize_t cc)
{
- tsize_t stride = PredictorState(tif)->stride;
+ tmsize_t stride = PredictorState(tif)->stride;
uint16* wp = (uint16*) cp0;
- tsize_t wc = cc / 2;
+ tmsize_t wc = cc / 2;
+
+ assert((cc%(2*stride))==0);
if (wc > stride) {
wc -= stride;
do {
REPEAT4(stride, wp[stride] += wp[0]; wp++)
wc -= stride;
- } while ((int32) wc > 0);
+ } while (wc > 0);
}
}
static void
-swabHorAcc32(TIFF* tif, tidata_t cp0, tsize_t cc)
+swabHorAcc32(TIFF* tif, uint8* cp0, tmsize_t cc)
{
- tsize_t stride = PredictorState(tif)->stride;
+ tmsize_t stride = PredictorState(tif)->stride;
uint32* wp = (uint32*) cp0;
- tsize_t wc = cc / 4;
+ tmsize_t wc = cc / 4;
+
+ assert((cc%(4*stride))==0);
if (wc > stride) {
TIFFSwabArrayOfLong(wp, wc);
@@ -325,23 +341,25 @@ swabHorAcc32(TIFF* tif, tidata_t cp0, tsize_t cc)
do {
REPEAT4(stride, wp[stride] += wp[0]; wp++)
wc -= stride;
- } while ((int32) wc > 0);
+ } while (wc > 0);
}
}
static void
-horAcc32(TIFF* tif, tidata_t cp0, tsize_t cc)
+horAcc32(TIFF* tif, uint8* cp0, tmsize_t cc)
{
- tsize_t stride = PredictorState(tif)->stride;
+ tmsize_t stride = PredictorState(tif)->stride;
uint32* wp = (uint32*) cp0;
- tsize_t wc = cc / 4;
+ tmsize_t wc = cc / 4;
+
+ assert((cc%(4*stride))==0);
if (wc > stride) {
wc -= stride;
do {
REPEAT4(stride, wp[stride] += wp[0]; wp++)
wc -= stride;
- } while ((int32) wc > 0);
+ } while (wc > 0);
}
}
@@ -349,15 +367,17 @@ horAcc32(TIFF* tif, tidata_t cp0, tsize_t cc)
* Floating point predictor accumulation routine.
*/
static void
-fpAcc(TIFF* tif, tidata_t cp0, tsize_t cc)
+fpAcc(TIFF* tif, uint8* cp0, tmsize_t cc)
{
- tsize_t stride = PredictorState(tif)->stride;
+ tmsize_t stride = PredictorState(tif)->stride;
uint32 bps = tif->tif_dir.td_bitspersample / 8;
- tsize_t wc = cc / bps;
- tsize_t count = cc;
+ tmsize_t wc = cc / bps;
+ tmsize_t count = cc;
uint8 *cp = (uint8 *) cp0;
uint8 *tmp = (uint8 *)_TIFFmalloc(cc);
+ assert((cc%(bps*stride))==0);
+
if (!tmp)
return;
@@ -371,12 +391,12 @@ fpAcc(TIFF* tif, tidata_t cp0, tsize_t cc)
for (count = 0; count < wc; count++) {
uint32 byte;
for (byte = 0; byte < bps; byte++) {
-#if WORDS_BIGENDIAN
+ #if WORDS_BIGENDIAN
cp[bps * count + byte] = tmp[byte * wc + count];
-#else
+ #else
cp[bps * count + byte] =
tmp[(bps - byte - 1) * wc + count];
-#endif
+ #endif
}
}
_TIFFfree(tmp);
@@ -386,13 +406,13 @@ fpAcc(TIFF* tif, tidata_t cp0, tsize_t cc)
* Decode a scanline and apply the predictor routine.
*/
static int
-PredictorDecodeRow(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s)
+PredictorDecodeRow(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s)
{
TIFFPredictorState *sp = PredictorState(tif);
assert(sp != NULL);
assert(sp->decoderow != NULL);
- assert(sp->decodepfunc != NULL);
+ assert(sp->decodepfunc != NULL);
if ((*sp->decoderow)(tif, op0, occ0, s)) {
(*sp->decodepfunc)(tif, op0, occ0);
@@ -409,7 +429,7 @@ PredictorDecodeRow(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s)
* strip/tile dimensions.
*/
static int
-PredictorDecodeTile(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s)
+PredictorDecodeTile(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s)
{
TIFFPredictorState *sp = PredictorState(tif);
@@ -417,11 +437,12 @@ PredictorDecodeTile(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s)
assert(sp->decodetile != NULL);
if ((*sp->decodetile)(tif, op0, occ0, s)) {
- tsize_t rowsize = sp->rowsize;
+ tmsize_t rowsize = sp->rowsize;
assert(rowsize > 0);
+ assert((occ0%rowsize)==0);
assert(sp->decodepfunc != NULL);
- while ((long)occ0 > 0) {
- (*sp->decodepfunc)(tif, op0, (tsize_t) rowsize);
+ while (occ0 > 0) {
+ (*sp->decodepfunc)(tif, op0, rowsize);
occ0 -= rowsize;
op0 += rowsize;
}
@@ -431,12 +452,14 @@ PredictorDecodeTile(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s)
}
static void
-horDiff8(TIFF* tif, tidata_t cp0, tsize_t cc)
+horDiff8(TIFF* tif, uint8* cp0, tmsize_t cc)
{
TIFFPredictorState* sp = PredictorState(tif);
- tsize_t stride = sp->stride;
+ tmsize_t stride = sp->stride;
char* cp = (char*) cp0;
+ assert((cc%stride)==0);
+
if (cc > stride) {
cc -= stride;
/*
@@ -452,7 +475,7 @@ horDiff8(TIFF* tif, tidata_t cp0, tsize_t cc)
g1 = cp[4]; cp[4] = g1-g2; g2 = g1;
b1 = cp[5]; cp[5] = b1-b2; b2 = b1;
cp += 3;
- } while ((int32)(cc -= 3) > 0);
+ } while ((cc -= 3) > 0);
} else if (stride == 4) {
int r1, g1, b1, a1;
int r2 = cp[0];
@@ -465,23 +488,25 @@ horDiff8(TIFF* tif, tidata_t cp0, tsize_t cc)
b1 = cp[6]; cp[6] = b1-b2; b2 = b1;
a1 = cp[7]; cp[7] = a1-a2; a2 = a1;
cp += 4;
- } while ((int32)(cc -= 4) > 0);
+ } while ((cc -= 4) > 0);
} else {
cp += cc - 1;
do {
REPEAT4(stride, cp[stride] -= cp[0]; cp--)
- } while ((int32)(cc -= stride) > 0);
+ } while ((cc -= stride) > 0);
}
}
}
static void
-horDiff16(TIFF* tif, tidata_t cp0, tsize_t cc)
+horDiff16(TIFF* tif, uint8* cp0, tmsize_t cc)
{
TIFFPredictorState* sp = PredictorState(tif);
- tsize_t stride = sp->stride;
+ tmsize_t stride = sp->stride;
int16 *wp = (int16*) cp0;
- tsize_t wc = cc/2;
+ tmsize_t wc = cc/2;
+
+ assert((cc%(2*stride))==0);
if (wc > stride) {
wc -= stride;
@@ -489,17 +514,19 @@ horDiff16(TIFF* tif, tidata_t cp0, tsize_t cc)
do {
REPEAT4(stride, wp[stride] -= wp[0]; wp--)
wc -= stride;
- } while ((int32) wc > 0);
+ } while (wc > 0);
}
}
static void
-horDiff32(TIFF* tif, tidata_t cp0, tsize_t cc)
+horDiff32(TIFF* tif, uint8* cp0, tmsize_t cc)
{
TIFFPredictorState* sp = PredictorState(tif);
- tsize_t stride = sp->stride;
+ tmsize_t stride = sp->stride;
int32 *wp = (int32*) cp0;
- tsize_t wc = cc/4;
+ tmsize_t wc = cc/4;
+
+ assert((cc%(4*stride))==0);
if (wc > stride) {
wc -= stride;
@@ -507,7 +534,7 @@ horDiff32(TIFF* tif, tidata_t cp0, tsize_t cc)
do {
REPEAT4(stride, wp[stride] -= wp[0]; wp--)
wc -= stride;
- } while ((int32) wc > 0);
+ } while (wc > 0);
}
}
@@ -515,15 +542,17 @@ horDiff32(TIFF* tif, tidata_t cp0, tsize_t cc)
* Floating point predictor differencing routine.
*/
static void
-fpDiff(TIFF* tif, tidata_t cp0, tsize_t cc)
+fpDiff(TIFF* tif, uint8* cp0, tmsize_t cc)
{
- tsize_t stride = PredictorState(tif)->stride;
+ tmsize_t stride = PredictorState(tif)->stride;
uint32 bps = tif->tif_dir.td_bitspersample / 8;
- tsize_t wc = cc / bps;
- tsize_t count;
+ tmsize_t wc = cc / bps;
+ tmsize_t count;
uint8 *cp = (uint8 *) cp0;
uint8 *tmp = (uint8 *)_TIFFmalloc(cc);
+ assert((cc%(bps*stride))==0);
+
if (!tmp)
return;
@@ -531,12 +560,12 @@ fpDiff(TIFF* tif, tidata_t cp0, tsize_t cc)
for (count = 0; count < wc; count++) {
uint32 byte;
for (byte = 0; byte < bps; byte++) {
-#if WORDS_BIGENDIAN
- cp[byte * wc + count] = tmp[bps * count + byte];
-#else
+ #if WORDS_BIGENDIAN
+ cp[byte * wc + count] = tmp[bps * count + byte];
+ #else
cp[(bps - byte - 1) * wc + count] =
tmp[bps * count + byte];
-#endif
+ #endif
}
}
_TIFFfree(tmp);
@@ -548,7 +577,7 @@ fpDiff(TIFF* tif, tidata_t cp0, tsize_t cc)
}
static int
-PredictorEncodeRow(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s)
+PredictorEncodeRow(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s)
{
TIFFPredictorState *sp = PredictorState(tif);
@@ -562,12 +591,12 @@ PredictorEncodeRow(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s)
}
static int
-PredictorEncodeTile(TIFF* tif, tidata_t bp0, tsize_t cc0, tsample_t s)
+PredictorEncodeTile(TIFF* tif, uint8* bp0, tmsize_t cc0, uint16 s)
{
static const char module[] = "PredictorEncodeTile";
TIFFPredictorState *sp = PredictorState(tif);
uint8 *working_copy;
- tsize_t cc = cc0, rowsize;
+ tmsize_t cc = cc0, rowsize;
unsigned char* bp;
int result_code;
@@ -583,7 +612,7 @@ PredictorEncodeTile(TIFF* tif, tidata_t bp0, tsize_t cc0, tsample_t s)
if( working_copy == NULL )
{
TIFFErrorExt(tif->tif_clientdata, module,
- "Out of memory allocating %d byte temp buffer.",
+ "Out of memory allocating " TIFF_SSIZE_FORMAT " byte temp buffer.",
cc0 );
return 0;
}
@@ -607,13 +636,12 @@ PredictorEncodeTile(TIFF* tif, tidata_t bp0, tsize_t cc0, tsample_t s)
#define FIELD_PREDICTOR (FIELD_CODEC+0) /* XXX */
-static const TIFFFieldInfo predictFieldInfo[] = {
- { TIFFTAG_PREDICTOR, 1, 1, TIFF_SHORT, FIELD_PREDICTOR,
- FALSE, FALSE, "Predictor" },
+static const TIFFField predictFields[] = {
+ { TIFFTAG_PREDICTOR, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UINT16, FIELD_PREDICTOR, FALSE, FALSE, "Predictor", NULL },
};
static int
-PredictorVSetField(TIFF* tif, ttag_t tag, va_list ap)
+PredictorVSetField(TIFF* tif, uint32 tag, va_list ap)
{
TIFFPredictorState *sp = PredictorState(tif);
@@ -622,7 +650,7 @@ PredictorVSetField(TIFF* tif, ttag_t tag, va_list ap)
switch (tag) {
case TIFFTAG_PREDICTOR:
- sp->predictor = (uint16) va_arg(ap, int);
+ sp->predictor = (uint16) va_arg(ap, uint16_vap);
TIFFSetFieldBit(tif, FIELD_PREDICTOR);
break;
default:
@@ -633,7 +661,7 @@ PredictorVSetField(TIFF* tif, ttag_t tag, va_list ap)
}
static int
-PredictorVGetField(TIFF* tif, ttag_t tag, va_list ap)
+PredictorVGetField(TIFF* tif, uint32 tag, va_list ap)
{
TIFFPredictorState *sp = PredictorState(tif);
@@ -659,9 +687,9 @@ PredictorPrintDir(TIFF* tif, FILE* fd, long flags)
if (TIFFFieldSet(tif,FIELD_PREDICTOR)) {
fprintf(fd, " Predictor: ");
switch (sp->predictor) {
- case 1: fprintf(fd, "none "); break;
- case 2: fprintf(fd, "horizontal differencing "); break;
- case 3: fprintf(fd, "floating point predictor "); break;
+ case 1: fprintf(fd, "none "); break;
+ case 2: fprintf(fd, "horizontal differencing "); break;
+ case 3: fprintf(fd, "floating point predictor "); break;
}
fprintf(fd, "%u (0x%x)\n", sp->predictor, sp->predictor);
}
@@ -679,10 +707,10 @@ TIFFPredictorInit(TIFF* tif)
/*
* Merge codec-specific tag information.
*/
- if (!_TIFFMergeFieldInfo(tif, predictFieldInfo,
- TIFFArrayCount(predictFieldInfo))) {
+ if (!_TIFFMergeFields(tif, predictFields,
+ TIFFArrayCount(predictFields))) {
TIFFErrorExt(tif->tif_clientdata, "TIFFPredictorInit",
- "Merging Predictor codec-specific tags failed");
+ "Merging Predictor codec-specific tags failed");
return 0;
}
@@ -694,7 +722,7 @@ TIFFPredictorInit(TIFF* tif)
PredictorVGetField;/* hook for predictor tag */
sp->vsetparent = tif->tif_tagmethods.vsetfield;
tif->tif_tagmethods.vsetfield =
- PredictorVSetField;/* hook for predictor tag */
+ PredictorVSetField;/* hook for predictor tag */
sp->printdir = tif->tif_tagmethods.printdir;
tif->tif_tagmethods.printdir =
PredictorPrintDir; /* hook for predictor tag */
@@ -727,3 +755,10 @@ TIFFPredictorCleanup(TIFF* tif)
}
/* vim: set ts=8 sts=8 sw=8 noet: */
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 8
+ * fill-column: 78
+ * End:
+ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-24 08:27:01 +0000