OpenSystemsDevelopment / qpdf

Commit b7abb12f55ec2bd45eb8b20c2c058395c289111b

Authored by m-holger
1 parent c01fc3c2

In Pl_TIFFPredictor::processRow remove special case for first column

Inline Side-by-side
Showing 1 changed file with 3 additions and 10 deletions
libqpdf/Pl_TIFFPredictor.cc
  View file @b7abb12
... ... @@ -6,8 +6,6 @@
6 6  
7 7 #include <climits>
8 8 #include <stdexcept>
9   -#include <vector>
10   -#include <iostream>
11 9  
12 10 Pl_TIFFPredictor::Pl_TIFFPredictor(
13 11 char const* identifier,
... ... @@ -62,14 +60,9 @@ Pl_TIFFPredictor::processRow()
62 60 QTC::TC("libtests", "Pl_TIFFPredictor processRow", (action == a_decode ? 0 : 1));
63 61 BitWriter bw(p_next);
64 62 BitStream in(cur_row.data(), cur_row.size());
65   - previous.clear();
66   - for (unsigned int i = 0; i < this->samples_per_pixel; ++i) {
67   - long long sample = in.getBitsSigned(this->bits_per_sample);
68   - bw.writeBitsSigned(sample, this->bits_per_sample);
69   - previous.push_back(sample);
70   - }
71   - for (unsigned int col = 1; col < this->columns; ++col) {
72   - for (auto& prev : previous) {
  63 + previous.assign(samples_per_pixel, 0);
  64 + for (unsigned int col = 0; col < this->columns; ++col) {
  65 + for (auto& prev: previous) {
73 66 long long sample = in.getBitsSigned(this->bits_per_sample);
74 67 long long new_sample = sample;
75 68 if (action == a_encode) {
... ...