yyc12345/stb
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'stbiw-fix-jpeg-flipping' of https://github.com/DanielGibson/stb into working

Browse Source
This commit is contained in:
Sean Barrett 2019-02-07 06:48:44 -08:00
commit b2bde485a2
1 changed files with 8 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
stb_image_write.h
View File

@ -1470,14 +1470,16 @@ static int stbi_write_jpg_core(stbi__write_context *s, int width, int height, in
float YDU[64], UDU[64], VDU[64]; float YDU[64], UDU[64], VDU[64];
for(row = y, pos = 0; row < y+8; ++row) { for(row = y, pos = 0; row < y+8; ++row) {
for(col = x; col < x+8; ++col, ++pos) { for(col = x; col < x+8; ++col, ++pos) {
int p = (stbi__flip_vertically_on_write ? height-1-row : row)*width*comp + col*comp;
float r, g, b; float r, g, b;
if(row >= height) { int p;
p -= width*comp*(row+1 - height); if(row < height) {
} p = (stbi__flip_vertically_on_write ? (height-1-row) : row)*width*comp;
if(col >= width) { } else {
p -= comp*(col+1 - width); // row >= height => use last input row (=> first if flipping)
p = stbi__flip_vertically_on_write ? 0 : ((height-1)*width*comp);
} }
// if col >= width => use pixel from last input column
p += ((col < width) ? col : (width-1))*comp;
r = imageData[p+0]; r = imageData[p+0];
g = imageData[p+ofsG]; g = imageData[p+ofsG];