neocturne/MinedMap
1
0
Fork 0
mirror of https://github.com/neocturne/MinedMap.git synced 2025-03-05 01:24:53 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

PNG: fix scaling of grayscale images

Browse source
This commit is contained in:
Matthias Schiffer 2015-02-03 13:59:12 +01:00
parent cca2ec58fb
commit 4cd7e83a70
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
src/PNG.cpp
View file

@ -130,7 +130,7 @@ static void readScaled(uint8_t *data, size_t offset_w, size_t offset_h, const ch
for (size_t h = 0; h < width/2; h++) {
for (size_t w = 0; w < width/2; w++) {
for (size_t c = 0; c < 4; c++) {
for (size_t c = 0; c < b; c++) {
size_t i = 2*b*(width*h + w) + c;
data[b*(width*(offset_h+h) + offset_w+w) + c] = (input[i] + input[i+b] + input[i+b*width] + input[i+b*width+b])/4;
}