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Use linearization table for Blackmagic DNG files, #4285

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This commit is contained in:
heckflosse 2018-11-09 14:45:38 +01:00
parent 8d1e1c7237
commit 3a51bcd00a
1 changed files with 3 additions and 1 deletions
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4
rtengine/dcraw.cc
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@ -1131,8 +1131,10 @@ void CLASS ljpeg_idct (struct jhead *jh)
void CLASS lossless_dnglj92_load_raw()
{
BENCHFUN
tiff_bps = 16;
uint16_t *lincurve = !strncmp(make,"Blackmagic",10) ? curve : nullptr;
tile_width = tile_length < INT_MAX ? tile_width : raw_width;
size_t tileCount = raw_width / tile_width;
@ -1161,7 +1163,7 @@ void CLASS lossless_dnglj92_load_raw()
lj92_open(&lj, &data[dataOffset[t]], data_length, &newwidth, &newheight, &newbps);
uint16_t *target = (uint16_t*)malloc(newwidth * newheight * 2 * sizeof *target);
lj92_decode(lj, target, tile_width, 0, NULL, 0);
lj92_decode(lj, target, tile_width, 0, lincurve, 0x1000);
for (int y = 0; y < height; ++y) {
for(int x = 0; x < tile_width; ++x) {
RAW(y, x + tcol) = target[y * tile_width + x];